1. The utility model provides a rack and pinion elevating gear for deep sea aquaculture box with a net which characterized in that includes: lifting drive mechanism (1), drive assembly (2), lifting gear (3) and lifting rack (4), lifting drive mechanism (1) is installed on spud leg (100), lifting rack (4) are installed on box with a net (110), drive assembly (2) will lifting drive mechanism's (1) output with lifting gear (3) transmission is connected, lifting gear (3) with lifting rack (4) meshing.

2. The gear rack lifting device for the deep sea aquaculture net cage according to claim 1, wherein the transmission assembly (2) comprises a gear shaft (21), a first bevel gear (22), a transmission shaft (23) and a second bevel gear (24), one end of the gear shaft (21) is installed on the output end of the lifting driving mechanism (1), the first bevel gear (22) is installed on the other end of the gear shaft (21), the second bevel gear (24) is sleeved on the transmission shaft (23), the first bevel gear (22) is meshed with the second bevel gear (24), and the lifting gear (3) is sleeved on the transmission shaft (23).

3. The gear rack lifting device for the deep sea aquaculture net cage according to claim 2, wherein the lifting driving mechanism (1) and the transmission assembly (2) are located in the pile leg (100), the pile leg (100) is provided with a first mounting hole (101), one end of the transmission shaft (23) penetrates through the first mounting hole (101) and extends out of the pile leg (100), and the lifting gear (3) is sleeved on the transmission shaft (23) and located outside the pile leg (100).

4. The gear rack lifting device for the deep sea aquaculture net cage according to claim 3, wherein the pile leg (100) is provided with a second mounting hole (102) corresponding to the first mounting hole (101), and two ends of the transmission shaft (23) respectively penetrate through the first mounting hole (101) and the second mounting hole (102) and are rotatably erected on the pile leg (100).

5. The gear rack lifting device for the deep sea aquaculture net cage according to claim 4, wherein the pile leg (100) is uniformly provided with a plurality of first mounting holes (101) along the length direction thereof, and the pile leg (100) is further provided with second mounting holes (102) corresponding to the first mounting holes (101).

6. The gear rack lifting device for the deep sea aquaculture net cage according to claim 4, wherein bearing seats (5) are installed at the first installation hole (101) and the second installation hole (102), rolling bearings (6) are detachably installed in the bearing seats (5), and two ends of the transmission shaft (23) are respectively inserted into inner rings of the rolling bearings (6) corresponding to the first installation hole (101) and the second installation hole (102).

7. The gear rack lifting device for the deep sea aquaculture net cage according to claim 6, wherein a bearing end cover (7) is mounted on the bearing seat (5), and a through hole (71) for the transmission shaft (23) to pass through is formed in the bearing end cover (7).

8. The gear rack lifting device for the deep sea aquaculture net cage according to claim 3, wherein the outer wall of the pile leg (100) is provided with a first waterproof sleeve (8) at the first installation hole (101), and the first waterproof sleeve (8) is provided with a through hole (81) for the transmission shaft (23) to pass through.

9. The rack and pinion lifting device for deep sea aquaculture cages according to claim 4, characterized in that the outer wall of the spud leg (100) is provided with a second waterproof jacket (9) at the second mounting hole (102).

10. The gear rack lifting device for the deep sea aquaculture net cage according to claim 1, wherein the lifting driving mechanism (1) comprises a motor (11) and a reduction gearbox (12), the reduction gearbox (12) is installed at the output end of the motor (11), and the transmission assembly (2) is in transmission connection with the output end of the reduction gearbox (12).

Background

The net cage culture originated in southeast Asia countries such as Cambodia at the end of 19 th century and then was transmitted to all over the world. In the last 70 th century, cage culture begins in China, and because the cage culture has the characteristics of low investment, high yield, mobility, quick response and the like, the cage culture is vigorously developed in lakes and reservoirs all over the country in short decades; at present, a lot of marine products are cultured on the sea by using net cages. The net cage culture mode is widely applied to marine fishery culture, typhoon is an inevitable influence factor of the marine fishery culture, the most domestic culture equipment at present is a HDPE (high density polyethylene) circular lifting culture net cage, the relation between the buoyancy and the sinking force of the net cage is changed by utilizing the water inlet or the air inflation of a main floating pipe of a net cage HDPE frame, and finally the net cage is lifted up and down on the water surface. However, the wind and wave resistance and stability of the net cages are poor, and the net cages can topple or even overturn when being impacted by horizontal load in the lifting process. With the development of marine aquaculture towards deep sea, square steel structure lifting type net cages appear abroad in recent years, and square metal frame net cage frames adopt galvanized steel frames. The inside of the frame is provided with a ballast water tank, and the lifting of the net cage is realized by controlling the suction and discharge of ballast water, so that the process is slow and unstable.

Disclosure of Invention

The invention aims to provide a gear rack lifting device for a deep sea aquaculture net cage, and aims to solve the technical problems of complex operation, poor stability, slow lifting speed and poor stability of the net cage in the prior art.

In order to achieve the purpose, the invention provides a gear rack lifting device for a deep sea aquaculture net cage, which comprises a lifting driving mechanism, a transmission assembly, a lifting gear and a lifting rack, wherein the lifting driving mechanism is installed on a pile leg, the lifting rack is installed on the net cage, the transmission assembly is used for connecting the output end of the lifting driving mechanism with the lifting gear in a transmission manner, and the lifting gear is meshed with the lifting rack. The net cage lifting operation is simple, the lifting process is stable and reliable, and the lifting efficiency is high; simple and compact structure, good stability and low failure rate.

Preferably, the transmission assembly includes a gear shaft, a first bevel gear, a transmission shaft and a second bevel gear, one end of the gear shaft is mounted on the output end of the lifting driving mechanism, the first bevel gear is mounted at the other end of the gear shaft, the second bevel gear is sleeved on the transmission shaft, the first bevel gear is meshed with the second bevel gear, and the lifting gear is sleeved on the transmission shaft. The transmission of large torque force in lifting operation is realized, and the lifting device has the characteristics of stable lifting and the like.

Preferably, the lifting driving mechanism and the transmission assembly are located in the pile leg, a first mounting hole is formed in the pile leg, one end of the transmission shaft penetrates through the first mounting hole and extends to the outside of the pile leg, and the lifting gear is sleeved on the transmission shaft and located outside the pile leg. Can improve the sealing performance of the lifting device, avoid seawater corrosion and prolong the service life of the whole device.

Preferably, the spud leg is provided with a second mounting hole corresponding to the first mounting hole, and two ends of the transmission shaft respectively penetrate through the first mounting hole and the second mounting hole and rotatably erected on the spud leg. Through seting up first mounting hole and second mounting hole, can fix the transmission shaft, guarantee the stability of structure.

Preferably, the pile leg is evenly provided with a plurality of first mounting holes along the length direction, and the pile leg is further provided with second mounting holes corresponding to the first mounting holes one to one. The horizontal heights of the lifting driving mechanism and the transmission assembly can be adjusted according to the position of the pile leg and the position of the net cage, so that seawater can be prevented from soaking the lifting driving mechanism and the transmission assembly, and the lifting speed of the net cage can be guaranteed.

Preferably, bearing seats are installed at the first installation hole and the second installation hole, rolling bearings are installed in the bearing seats in a detachable mode, and two ends of the transmission shaft are inserted into inner rings of the rolling bearings corresponding to the first installation hole and the second installation hole respectively. The rolling bearing is detachably arranged on the bearing seat and is convenient to detach at any time, so that the lifting range of the net cage can be flexibly adjusted.

Preferably, a bearing end cover is installed on the bearing seat, and a through hole for the transmission shaft to pass through is formed in the bearing end cover. The sealing performance of the rolling bearing can be improved, and the rolling bearing is prevented from falling off in the long-term working process to cause transmission failure; but also can avoid seawater corrosion on the rolling bearing; and meanwhile, the stability of the structure can be improved.

Preferably, the outer wall of the pile leg is provided with a first waterproof sleeve at the first mounting hole, and the first waterproof sleeve is provided with a through hole for the transmission shaft to pass through. Set up first waterproof cover, can improve the leakproofness of device, effectively avoid the sea water to corrode, and then improve the life of part.

Preferably, the outer wall of the leg is provided with a second waterproof jacket at the second mounting hole. The sealing performance of the device can be further improved by arranging the second waterproof sleeve, the second waterproof sleeve does not need to be perforated, the sealing performance is better, the effect of avoiding seawater corrosion of parts is better, and the service life of the parts is longer.

Preferably, the lifting driving mechanism comprises a motor and a reduction gearbox, the reduction gearbox is installed at the output end of the motor, and the transmission assembly is in transmission connection with the output end of the reduction gearbox. The net cage can be conveniently driven to lift in a wired or wireless control mode, the lifting is stable, and the lifting requirements of the net cage at different speeds and different depths can be met.

The invention relates to a gear rack lifting device for a deep sea aquaculture net cage, which at least has the following beneficial effects: the lifting rack is arranged on the net cage, the lifting driving mechanism is arranged on the pile leg, the lifting gear is in transmission connection with the lifting driving mechanism through the transmission assembly, and the lifting of the net cage is controlled by meshing the lifting gear and the lifting rack, so that the operation is simple, the lifting process is stable and reliable, and the lifting efficiency is high; the structure is simple and compact, the stability is good, and the failure rate is low; the load of the net cage can be transferred to the pile legs, so that the service life of the net cage is prolonged. The transmission assembly is arranged to connect the lifting driving mechanism with the lifting gear in a transmission way, so that the transmission of large torque force in lifting operation can be realized, and the net cage can be lifted more stably; and the transmission of force in different directions can be realized through different specific structures of the transmission assembly, such as the rotation in the vertical direction is converted into the rotation in the horizontal direction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the assembly structure of the lifting device with the spud legs and the net cage of the present invention;

FIG. 2 is a partially enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic view of the assembly structure of the lifting device and the pile leg of the present invention;

FIG. 4 is a partially enlarged view of the portion B in FIG. 3;

FIG. 5 is a partial enlarged view of the portion C in FIG. 3;

FIG. 6 is a schematic structural view of a bearing end cap according to the present invention;

FIG. 7 is a schematic view of a first waterproof jacket according to the present invention;

fig. 8 is a schematic view of the first and second waterproofing sheaths of the invention mounted on a leg.

In the drawings: 1-lifting driving mechanism, 11-motor, 12-reduction gearbox, 2-transmission component, 21-gear shaft, 22-first bevel gear, 23-transmission shaft, 24-second bevel gear, 3-lifting gear, 4-lifting rack, 5-bearing seat, 6-rolling bearing, 7-bearing end cover, 71-through hole, 8-first waterproof sleeve, 81-through hole, 9-second waterproof sleeve, 100-spud leg, 101-first mounting hole, 102-second mounting hole and 110-net cage.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 8, the gear rack lifting device for the deep sea aquaculture net cage comprises a lifting driving mechanism 1, a transmission assembly 2, a lifting gear 3 and a lifting rack 4, wherein the lifting driving mechanism 1 is installed on a pile leg 100, the lifting rack 4 is installed on a net cage 110, the transmission assembly 2 is used for connecting the output end of the lifting driving mechanism 1 with the lifting gear 3 in a transmission manner, and the lifting gear 3 is meshed with the lifting rack 4.

In the field of marine farming, it is common to sink the legs 100 at sea, then fix the culture net cage 110 on the legs 100, and control the lifting of the net cage 110 by a lifting device to sink the net cage 110 into the seabed at different depths. The lifting driving mechanism 1 is used for controlling the net cage 110 to lift relative to the spud leg 100, and the lifting driving mechanism 1 is specifically installed and fixed on the spud leg 100; the lifting rack 4 is specifically welded on the net cage 110, and the length direction of the lifting rack 4 is the same as the height direction of the net cage 110, and the height direction of the net cage 110 is the ascending or descending direction of the net cage 110. The transmission assembly 2 is in transmission connection with the output end of the lifting driving mechanism 1, the lifting rack 4 is arranged on the transmission assembly 2, and the transmission assembly 2 transmits the power of the lifting driving mechanism 1 to the lifting gear 3; the lifting gear 3 is meshed with the lifting rack 4. The lifting driving mechanism 1 is opened, the lifting gear 3 is driven to rotate through the transmission component 2, and the lifting rack 4 rises or falls relative to the lifting gear 3, so that the net cage 110 rises or falls.

At present, lifting net cages are lifted by adopting a method of floating box settlement or an anchor chain anchor machine, but the wind wave resistance and the stability of the net cages are poor, and the net cages are toppled or even overturned when being impacted by horizontal load in the lifting process. When the typhoon weather comes, the operation time of the lifting system is long, the failure rate is high, and the stability is poor. According to the technical scheme, the lifting rack 4 is arranged on the net cage 110, the lifting driving mechanism 1 is installed on the pile leg 100, the lifting gear 3 is in transmission connection with the lifting driving mechanism 1 through the transmission assembly 2, the lifting of the net cage 110 is controlled by meshing the lifting gear 3 with the lifting rack 4, the operation is simple, the lifting process is stable and reliable, and the lifting efficiency is high; the structure is simple and compact, the stability is good, and the failure rate is low; the load of the cage 110 can be transferred to the spud legs 100, thereby increasing the service life of the cage 110. The transmission assembly 2 is arranged to connect the lifting driving mechanism 1 and the lifting gear 3 in a transmission manner, so that the transmission of large torque force in lifting operation can be realized, and the net cage 110 is lifted more stably; and the transmission of force in different directions can be realized by different specific structures of the transmission assembly 2, such as converting the rotation in the vertical direction into the rotation in the horizontal direction. When the net cage 110 needs to culture each kind of high-value fish, the net cage 110 needs to be lowered to an optimum culture water layer, the self-supporting force of the net cage 110 at any position can be provided by using the braking torque of the lifting driving mechanism 1, and the purposes of fixing the net cage 110 on a specific water layer to culture the high-value fish and prevent typhoon can be realized.

Further, the transmission assembly 2 includes a gear shaft 21, a first bevel gear 22, a transmission shaft 23 and a second bevel gear 24, one end of the gear shaft 21 is installed on the output end of the lifting driving mechanism 1, the first bevel gear 22 is installed on the other end of the gear shaft 21, the second bevel gear 24 is sleeved on the transmission shaft 23, the first bevel gear 22 is meshed with the second bevel gear 24, and the lifting gear 3 is sleeved on the transmission shaft 23.

One end of the gear shaft 21 is installed on the output end of the lifting driving mechanism 1, and the other end is installed with a bevel gear; specifically, the output end of the elevating drive mechanism 1 is downward along the length direction of the pile leg 100, and thus the length direction of the gear shaft 21 coincides with the length direction of the pile leg 100. The transmission shaft 23 is rotatably mounted on the spud leg 100, and the transmission shaft 23 is perpendicular to the gear shaft 21; the second bevel gear 24 is sleeved on the transmission shaft 23 and meshed with the first bevel gear 22; the lifting gear 3 is sleeved on the transmission shaft 23. The lifting driving mechanism 1 is started, and drives the gear shaft 21 to rotate around the axis of the gear shaft through the output end of the lifting driving mechanism; the first bevel gear 22 rotates in synchronization with the gear shaft 21; the first bevel gear 22 rotates to drive the second bevel gear 24 meshed with the first bevel gear to rotate; the transmission shaft 23 and the second bevel gear 24 rotate synchronously, and the lifting gear 3 and the transmission shaft 23 rotate synchronously; the lifting gear 3 rotates to drive the lifting rack 4 to ascend or descend relative to the lifting gear 3; since the lifting rack 4 is welded to the cage 110 and the lifting drive mechanism 1 is installed on the leg 100, the cage 110 is finally raised or lowered with respect to the leg 100. The transmission assembly 2 is arranged in such a way, the rotation of the gear shaft 21 around the vertical direction can be converted into the rotation of the transmission shaft 23 around the horizontal direction, the transmission of large torque force in lifting operation is realized, and the characteristics of stable lifting and the like are realized; on the other hand, the position that lift actuating mechanism 1 set up can be closer to spud leg 100 top more, effectively avoids the sea water to soak lift actuating mechanism 1, improves the holistic life of device.

Further, lift actuating mechanism 1 with transmission assembly 2 all is located in spud leg 100, first mounting hole 101 has been seted up to spud leg 100, the one end of transmission shaft 23 is passed first mounting hole 101 extends to outside spud leg 100, 3 covers of lifting gear establish on the transmission shaft 23 and be located outside spud leg 100.

Specifically, the leg 100 is a hollow cylindrical structure, such as a hollow cylindrical structure; the lifting driving mechanism 1 and the transmission assembly 2 are both positioned in the pile leg 100, and the net cage 110 is positioned outside the pile leg 100; because the lifting driving mechanism 1 inside the leg 100 needs to transmit force to the lifting rack 4 and the net cage 110 through the transmission assembly 2 and the lifting gear 3, the lifting gear 3 engaged with the lifting rack 4 needs to be located outside the leg 100, that is, the transmission shaft 23 needs to extend from inside the leg 100 to outside the leg 100, and therefore the leg 100 is provided with the first mounting hole 101 for the transmission shaft 23 to pass through. The lifting driving mechanism 1 and the transmission assembly 2 are arranged in the hollow pile leg 100, so that the sealing performance of the lifting device can be improved, seawater corrosion is avoided, and the service life of the whole device is prolonged; the main body of the device is hidden in the spud leg 100, the whole structure is reasonable, and the net cage 110 can rise and fall smoothly.

Further, the spud leg 100 is provided with a second mounting hole 102 corresponding to the first mounting hole 101, and two ends of the transmission shaft 23 respectively penetrate through the first mounting hole 101 and the second mounting hole 102 and rotatably erected on the spud leg 100.

The pile leg 100 is also provided with a second mounting hole 102, the horizontal heights of the first mounting hole 101 and the second mounting hole 102 are consistent, and the first mounting hole 101 and the second mounting hole are symmetrical relative to the center of the pile leg 100; the two ends of the transmission shaft 23 respectively penetrate through the first mounting hole and the second mounting hole 102, so that the transmission shaft 23 is erected on the pile leg 100, the side wall of the pile leg 100 supports the transmission shaft 23, and the transmission shaft 23 can rotate around the central axis thereof. The transmission shaft 23 can be fixed by arranging the first mounting hole 101 and the second mounting hole 102, so that the stability of the structure is ensured; and the first bevel gear 22 and the second bevel gear 24 are positioned between the first mounting hole 101 and the second mounting hole 102, so that the stress of the structure is more reasonable, the transmission is smoother, and the service life of the parts is longer.

Further, the pile leg 100 is uniformly provided with a plurality of first mounting holes 101 along the length direction thereof, and the pile leg 100 is further provided with second mounting holes 102 corresponding to the plurality of first mounting holes 101 one to one.

The length of the pile legs 100 is long so as to adapt to culture areas with different depths; for example, when the cage 110 is used for cultivation in a deep sea area, the pile leg 100 sinks into the sea more, and at this time, in order to avoid the sea from soaking the lifting driving mechanism 1 and the transmission assembly 2, the positions of the two need to be as close as possible to the top end of the pile leg 100, and at this time, the positions of the first mounting hole 101 and the second mounting hole 102 also need to be close to the top end of the pile leg 100; when the net cage 110 is used for cultivation in a shallow seabed area, the areas of the pile legs 100 submerged in sea water are small, and the areas exposed to the sea level are large, at this time, on the premise of avoiding the sea water from soaking the lifting driving mechanism 1 and the transmission component 2, in order to improve the lifting speed of the net cage 110, the lifting driving mechanism 1 and the transmission component 2 can be properly close to the sea level, so that the positions of the first mounting hole 101 and the second mounting hole 102 are also properly close to the sea level. The first mounting holes 101 and the second mounting holes 102 are formed in the length direction of the pile leg 100, the horizontal heights of the lifting driving mechanism 1 and the transmission assembly 2 can be adjusted according to the positions of the pile leg 100 and the net cage 110, seawater can be prevented from soaking the lifting driving mechanism 1 and the transmission assembly 2, and the lifting speed of the net cage 110 can be guaranteed. On the other hand, the stress point between the net cage 110 and the pile leg 100 when the net cage 110 is lifted can be optimized; and the position of the lifting gear 3 is more reasonable, the ascending or descending stroke of the net cage 110 can be ensured to be larger, and the net cage 110 can be conveniently sunk into the seabed at different depths so as to breed different high-value fishes and resist typhoon. The pile leg 100 is provided with the first mounting holes 101 and the second mounting holes 102, so that the weight of the pile leg 100 can be greatly reduced, and transportation, pile sinking, pile pulling and the like are facilitated.

Further, bearing seats 5 are installed at the first installation hole 101 and the second installation hole 102, rolling bearings 6 are detachably installed in the bearing seats 5, and two ends of the transmission shaft 23 are respectively inserted into inner rings of the rolling bearings 6 corresponding to the first installation hole 101 and the second installation hole 102.

The pile leg 100 is provided with a bearing seat 5 at the first mounting hole 101 and the second mounting hole 102, and the bearing seat 5 is positioned on the outer side wall of the pile leg 100; a rolling bearing 6 is arranged in the bearing seat 5, an outer ring of the rolling bearing 6 is fixedly connected with the bearing seat 5, and an inner ring can rotate; both ends of the transmission shaft 23 are respectively inserted into the inner rings of the rolling bearings 6 corresponding to the first mounting hole 101 and the second mounting hole 102, and the transmission shaft 23 and the inner rings of the rolling bearings 6 can rotate synchronously. The bearing seat 5 and the rolling bearing 6 are arranged, so that the rotating smoothness of the transmission shaft 23 can be improved, and the stability of the net cage 110 in the lifting process is improved; meanwhile, the stability of the transmission shaft 23 in the continuous rotating process can be ensured, the stress is reasonable, and the service life of the device is prolonged. The rolling bearing 6 is detachably arranged on the bearing seat 5, so that the rolling bearing is convenient to detach at any time, and the lifting range of the net cage 110 is flexibly adjusted; and facilitates replacement of the rolling bearings 6 of different sizes according to the diameter of the drive shaft 23 during use.

Further, a bearing end cover 7 is mounted on the bearing seat 5, and a through hole 71 for the transmission shaft 23 to pass through is formed in the bearing end cover 7.

The bearing end cap 7 serves to seal the rolling bearing 6 and to limit the temperature of the rolling bearing 6 on the bearing seat 5. Specifically, the bearing seat 5 is internally provided with a cavity for the transmission shaft 23 to pass through and for accommodating the rolling bearing 6, and the rolling bearing 6 is embedded into the cavity by the bearing end cover 7 after being arranged in the cavity. Because one end or both ends of the transmission shaft 23 need to penetrate through the spud leg 100 and extend outwards, the bearing end cover 7 is provided with a through hole 71 for the transmission shaft 23 to pass through. The bearing end cover 7 is arranged, so that the sealing performance of the rolling bearing 6 can be improved, and the rolling bearing 6 is prevented from falling off in the long-term working process to cause transmission failure; but also can avoid seawater corrosion on the rolling bearing 6; and meanwhile, the stability of the structure can be improved.

Further, a first waterproof jacket 8 is arranged on the outer wall of the pile leg 100 at the first mounting hole 101, and a through hole 81 for the transmission shaft 23 to pass through is formed in the first waterproof jacket 8.

A first waterproof sleeve 8 is arranged at the first mounting hole 101, and the first waterproof sleeve 8 is fixed on the outer wall of the pile leg 100; specifically, the first mounting hole 101, and the bearing seat 5, the rolling bearing 6, and the bearing end cover 7 located at the first mounting hole 101 are all covered in the first waterproof case 8. The first waterproof jacket 8 is a hollow structure and can be connected to the pile leg 100 through flanges and bolts, and the water tightness of the device is improved. One end of the transmission shaft 23 needs to extend to the outside of the pile leg 100 and is provided with the lifting gear 3, and the lifting gear 3 needs to be positioned outside the first waterproof sleeve 8 to be meshed with the lifting rack 4; the first waterproof case 8 is provided with a through hole 81, and the transmission shaft 23 can extend outwards through the through hole 81. Set up first waterproof cover 8, can improve the leakproofness of device, effectively avoid the sea water corruption, and then improve the life of part.

Further, the outer wall of the leg 100 is provided with a second waterproof jacket 9 at the second mounting hole 102.

The second waterproof jacket 9 is similar to the first waterproof jacket 8 in structure, and the inside of the second waterproof jacket is also hollow; specifically, the pile is fixed on the pile leg 100 through a flange and a bolt; the second waterproof jacket 9 is located at the second mounting hole 102 and fixed to the outer wall of the leg 100. The second mounting hole 102, the bearing seat 5 positioned at the second mounting hole 102, the rolling bearing 6 and the bearing end cover 7 are all positioned in the second waterproof jacket 9. The end of the driving shaft 23 inserted at the second mounting hole 102 may also be located inside the second waterproof jacket 9, so that the second waterproof jacket 9 does not need to be perforated. The sealing performance of the device can be further improved by arranging the second waterproof sleeve 9, the second waterproof sleeve 9 does not need to be perforated, the sealing performance is better, the effect of avoiding seawater corrosion of parts is better, and the service life of the parts is longer.

Further, the lifting driving mechanism 1 comprises a motor 11 and a reduction gearbox 12, the reduction gearbox 12 is installed at the output end of the motor 11, and the transmission assembly 2 is in transmission connection with the output end of the reduction gearbox 12.

The output end of the motor 11 transmits power to the transmission component 2 through the reduction gearbox 12, and then transmits the power to the lifting gear 3; the reduction box 12 is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a reduction transmission device between a prime mover and a working machine. The lifting driving mechanism 1 can conveniently drive the net cage 110 to lift in a wired or wireless control mode, and the lifting driving mechanism is stable in lifting and can meet the lifting requirements of the net cage 110 at different speeds and different depths. The lifting driving mechanism 1 is fixed inside the pile leg 100 through a fixing plate (not shown in the figure), the lifting driving mechanism 1 is always located above the water surface, the braking torque of the motor 11 provides the self-supporting force of the net cage 110, the structures such as the motor 11 and the reduction gearbox 12 are prevented from being corroded by seawater, the service life of the whole device is prolonged, and the operation reliability of the net cage 110 is ensured.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.