1. The utility model provides a lifting device of stacker cargo carrying platform which characterized in that: the lifting device is arranged on a metal frame (14) and comprises a synchronous servo motor (1), a driving shaft (2), a double-row chain wheel (3), a lifting chain (4), a chain roller (5), a guide rail (6), a guide rail fixing support (7), a first auxiliary guide wheel (8), a second auxiliary guide wheel (9), a spring device (10) and a baffle plate (11);

the synchronous servo motor (1) is fixedly connected to the metal frame (14) through a motor fixing seat bolt;

the driving shaft (2) is supported and fixed on the metal frame (14) by a bearing with a seat;

the double-row chain wheel (3) is connected and installed on the driving shaft (2) through a key;

the lifting chain (4) is meshed with the double-row chain wheel (3), one end of the lifting chain (4) is fixedly connected with the spring device (10), and the other end of the lifting chain is connected with the cargo carrying platform; chain rollers (5) are arranged on the lifting chain (4) at intervals;

the guide rail (6) is fixedly arranged on the metal frame (14) through a guide rail fixing support (7) in a supporting mode, and the guide rail (6) inclines downwards along the collecting direction of the lifting chain (4); the guide rail (6) is formed by symmetrically arranging two C-shaped guide rails (61), the middle of the guide rail (6) is of a hollow structure, the chain roller (5) can slide on the guide rail (6), and the part of the lifting chain (4) without the chain roller (5) can freely fall in the hollow structure of the guide rail (6);

the guide rail fixing support (7) is arranged on the metal frame (14) and used for supporting the guide rail (6), an arc hole is formed in the fixing position of the bottom of the guide rail fixing support (7) and the guide rail (6) and used for adjusting the downward inclination angle of the guide rail (6), and meanwhile, a long hole is formed in the top of the guide rail fixing support (7) and used for adjusting the upper position and the lower position of the guide rail (6);

one end of the guide rail (6) close to the first auxiliary guide wheel (8) is fixedly provided with a guide wheel shaft, and the first auxiliary guide wheel (8) is arranged on the guide wheel shaft;

the second auxiliary guide wheel (9) is fixed on the metal frame (14) through a bolt and is arranged above the guide rail (6);

the baffle (11) is arranged between the downward inclined tail end of the guide rail (6) and the spring device (10), and a rectangular hole is formed in the baffle (11).

2. The lifting device of a stacker cargo bed according to claim 1, characterized in that: the downward inclination angle of the guide rail (6) is 2-5 degrees.

3. The lifting device of a stacker cargo bed according to claim 2, characterized in that: the downward inclination angle of the guide rail (6) is 3 degrees.

4. The lifting device of a stacker cargo bed according to claim 1, characterized in that: the chain rollers (5) are arranged on the lifting chain (4) at intervals, and the distance is 0.5-1.5 m.

5. The lifting device of a stacker cargo bed according to claim 4, characterized in that: the distance between the chain rollers (5) is 1 m.

6. The lifting device of a stacker cargo bed according to claim 2 or 4, characterized in that: the spring device (10) consists of a fixed bracket (101), a chain fixed shaft (102), a spring (103), a spring shaft sleeve (104) and a nut (105); the spring device (10) is fixed on the metal frame (14) by a fixed support (101), one end of a chain fixed shaft (102) is fixed with the lifting chain (4), and the other end of the chain fixed shaft penetrates through the fixed support (101), a spring shaft sleeve (104) and a spring (103) and is fixed by a nut (105); the spring (103) is arranged on the spring shaft sleeve (104).

7. The lifting device of a stacker cargo bed according to claim 2 or 4, characterized in that: the lifting device further comprises an oil collecting box device, the oil collecting box device is arranged at the bottom of the lifting chain (4) and consists of an oil collecting box (121) and a fixing frame (122), the fixing frame (122) is fixedly installed on the metal framework (14), and the oil collecting box (121) is supported and fixed by the fixing frame (122).

8. The lifting device of a stacker cargo bed according to claim 2 or 4, characterized in that: the lifting device further comprises a protective cover (13), and the protective cover (13) is arranged at the transmission position of the lifting chain (4).

Background

Along with the demand of conventional standing warehouse saturates gradually, and lower technical threshold, traditional stacker can not satisfy the needs of modern industry development completely, and special industry market is more and more on the contrary to the stacker demand of special model, especially in trades such as steel, and current traditional stacker all has certain defect in space utilization, conveying efficiency and stability, if: (1) the common lifting device lifts a steel wire rope winding drum, the winding drum occupies large space and has larger weight, and the lifting device cannot be realized in a matched bridge type stacker; (2) the steel wire rope traction has the extension problem, the shaking amplitude is large, and absolute accurate guidance is needed; (3) the majority of the existing hoisting devices rely on stand columns, and stackers with ultra-long spans cannot share multiple roadways. The lifting device of the existing stacker cannot meet the requirements of machine types in special industries, so the invention provides higher requirements for the lifting device of the stacker.

Disclosure of Invention

The invention provides a lifting device of a stacker cargo carrying platform, which comprises a synchronous servo motor, a driving shaft, double-row chain wheels, a lifting chain, chain rollers, a guide rail fixing support, a first auxiliary guide wheel, a second auxiliary guide wheel, a spring device, a baffle plate, an oil collecting box device and a protective cover, wherein the synchronous servo motor is arranged on the driving shaft;

the synchronous servo motors are connected and fixed on the metal frame through motor fixing seats and bolts, and two synchronous servo motors are symmetrically arranged;

the two driving shafts are supported and fixed on the metal frame by a bearing with a seat;

the number of the double-row chain wheels is four, and the double-row chain wheels are connected and installed on the driving shaft through keys; the double-row chain wheel is of a tooth-shaped structure;

four lifting chains are respectively meshed with the double-row chain wheels, one end of each lifting chain is fixedly connected with the spring device, and the other end of each lifting chain is connected with the cargo carrying platform; chain rollers are arranged on the lifting chain at intervals, and when the lifting chain enters and exits the guide rail, the chain rollers enter and exit the guide rail along with the lifting chain; the distance between the chain rollers is 0.5-1.5m, preferably 1 m; in the process of lifting the cargo carrying platform, the lifting chain mainly drives the double-row chain wheel by the synchronous servo motor to drive the cargo carrying platform to move up and down, and the double-row chain wheel and the lifting chain are in meshing transmission, so that the lifting chain adopts an open-loop structure, and the cargo carrying platform can be lifted without being weighted;

the guide rail is supported by a guide rail fixing support and fixedly arranged on the metal frame, the guide rail inclines downwards along the direction of collecting the lifting chain, and the inclination angle is 2-5 degrees, preferably 3 degrees; the guide rails are combined C-shaped guide rails, the two C-shaped guide rails are symmetrically arranged to form one guide rail, the middle of each guide rail is of a hollow structure, chain rollers can slide on the guide rails, and a lifting chain naturally falls into a hollow space between the two C-shaped guide rails due to dead weight in the process of entering and exiting the guide rails; the guide rail is externally provided with a steel C-shaped groove, the interior of the guide rail is made of polyethylene materials, when a steel chain roller runs in the polyethylene material guide rail, noise can be reduced, the abrasion degree of the chain roller is reduced, and the weight of the whole mechanism can be reduced; the end part of the guide rail, which enters and exits the lifting chain, is provided with a notch, and the upper part of the inner side of the guide rail is chamfered with an oblique angle, so that the phenomenon that the lifting chain is blocked when entering and exiting the guide rail can be avoided;

the guide rail fixing support is arranged on the metal frame and used for supporting the guide rail, the bottom of the guide rail fixing support and the fixing position of the guide rail are provided with arc holes for adjusting the downward inclination angle of the guide rail, and meanwhile, the top of the guide rail fixing support is provided with a long hole for adjusting the upper position and the lower position of the guide rail;

one end of the guide rail, which is close to the first auxiliary guide wheel, is fixedly provided with a guide wheel shaft, and the first auxiliary guide wheel is fixedly arranged on the guide wheel shaft; the first auxiliary guide wheel mainly plays a role in guiding the lifting chain when entering the guide rail;

the second auxiliary guide wheel is fixed on the metal frame through a bolt and arranged above the guide rail, and the distance between the second auxiliary guide wheel and the lifting chain can be adjusted through the bolt; the second auxiliary guide wheel is mainly used for guiding the lifting chain when the lifting chain enters and exits the guide rail and preventing the phenomenon of tooth jumping when the lifting chain exits the guide rail, and the lifting chain is subjected to certain pulling force when the lifting chain exits the guide rail and reacts on the second auxiliary guide wheel, so that the function of preventing tooth jumping can be achieved;

the spring device consists of a fixed bracket, a chain fixed shaft, a spring shaft sleeve and a nut; the spring device is fixed on the metal frame by a fixed support, one end of a chain fixed shaft is fixed with the lifting chain, and the other end of the chain fixed shaft penetrates through the fixed support, the spring shaft sleeve and the spring and is fixed by double nuts; the spring is arranged on the spring shaft sleeve; the spring device mainly plays a role in assisting the collection of the lifting chain, and the contraction force of the spring can play a role in drawing the lifting chain, so that the phenomenon that a chain roller is blocked in a guide rail is further avoided;

the baffle is arranged between the tail end of the guide rail, which is inclined downwards, and the spring device, and aims to prevent the lifting chain from sliding out of the guide rail, and a rectangular hole is formed in the baffle, so that the lifting chain can conveniently penetrate through the baffle and be fixed with the spring device;

the oil collecting box device is arranged at the bottom of the lifting chain and consists of an oil collecting box and a fixing frame, the fixing frame is fixed on the metal frame and plays a supporting role on the oil collecting box, and the oil collecting box device has the function of preventing the lifting chain from being polluted by oil because oil is required to be regularly added for maintenance in the operation process;

the protective cover is arranged at the transmission position of the lifting chain, so that the safety is ensured, and the dustproof and attractive effects are achieved.

The invention achieves the following beneficial technical effects:

(1) the lifting device adopts four lifting chains, and the lifting chains are automatically collected under the self-weight environment by depending on the inclination of the guide rail, the matching of chain rollers and the guide rail and the traction of a spring device, so that the complexity of general winding drum collection and counterweight requirement is avoided, the lifting device is simpler, the equipment weight is reduced, and the manufacturing cost is saved;

(2) the chain rollers are arranged at intervals, so that the space is saved for collecting the lifting chains, and the space utilization rate is improved;

(3) the hoisting chain traction has certain angle deflection and toughness, and can compensate for slight positioning deviation, so that the phenomenon that the cargo carrying platform cannot be normally lifted due to positioning precision deviation can be avoided in the operation process;

(4) the spring device ensures the smoothness of the collection of the lifting chain;

(5) in conclusion, the technical scheme of the invention can provide the lifting device of the cargo carrying platform, which has the advantages of stable and smooth operation, low cost and space saving.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is an enlarged view of a portion of the structure of fig. 1.

Fig. 3 is a top view of the present invention.

Fig. 4 is a left side view of the present invention.

Fig. 5 is an enlarged schematic top view of the guide rail of the present invention in cooperation with a lifting chain and chain rollers.

Fig. 6 is an enlarged left side view of the guide rail in cooperation with a lifting chain and chain rollers of the present invention.

Fig. 7 is an enlarged schematic view of the spring device of the present invention.

Detailed Description

With reference to the figures 1-7 of the drawings,

a lifting device of a stacker cargo carrying platform is arranged on a metal frame 14 and comprises a synchronous servo motor 1, a driving shaft 2, a double-row chain wheel 3, a lifting chain 4, a chain roller 5, a guide rail 6, a guide rail fixing support 7, a first auxiliary guide wheel 8, a second auxiliary guide wheel 9, a spring device 10, a baffle plate 11, an oil collecting box device and a protective cover 13;

the synchronous servo motors 1 are connected and fixed on the metal frame 14 through motor fixing seats and bolts, and the number of the synchronous servo motors is two;

the two driving shafts 2 are supported and fixed on the metal frame 14 by a bearing with a seat;

the double-row chain wheels 3 are installed on the driving shaft 2 through key connection, and the number of the double-row chain wheels is four;

four lifting chains 4 are engaged on the double-row chain wheel 3, one end of each lifting chain 4 is fixedly connected with the spring device 10, and the other end of each lifting chain 4 is connected with the cargo carrying platform; the chain rollers 5 are arranged on the lifting chain 4 at intervals, and the spacing is 0.5-1.5m, preferably 1 m;

the guide rail 6 is supported and fixedly arranged on the metal frame 14 by a guide rail fixing bracket 7, the guide rail 6 inclines downwards, and the downward inclination angle of the guide rail 6 is 2-5 degrees, preferably 3 degrees; the guide rail 6 is formed by symmetrically arranging two C-shaped guide rails 61, the middle of the guide rail 6 is of a hollow structure, the chain roller 5 can slide on the guide rail 6, and the part, without the chain roller 5, of the lifting chain 4 can freely fall in the hollow structure of the guide rail 6;

four guide rail fixing brackets 7 are arranged on the metal frame 14 and used for supporting the guide rails 6, and arc holes are formed at the fixing positions of the bottoms of the guide rail fixing brackets 7 and the guide rails 6 and used for adjusting the downward inclination angles of the guide rails 6;

one end of the guide rail 6 close to the first auxiliary guide wheel 8 is fixedly provided with a guide wheel shaft, and the first auxiliary guide wheel 8 is fixedly arranged on the guide wheel shaft;

the second auxiliary guide wheel 9 is fixed on the metal frame 14 by bolts and arranged above the guide rail 6;

the baffle 11 is arranged between the downward inclined tail end of the guide rail 6 and the spring device 10, and a rectangular hole is formed in the baffle 11;

as shown in fig. 7, the spring device 10 is composed of a fixing bracket 101, a chain fixing shaft 102, a spring 103, a spring bushing 104 and a nut 105; the spring device 10 is fixed on the metal frame 14 by a fixed bracket 101, one end of a chain fixed shaft 102 is fixed with the lifting chain 4, and the other end passes through the fixed bracket 101, a spring shaft sleeve 104 and a spring 103 and is fixed by a nut 105; the spring 103 is arranged on the spring shaft sleeve 104;

the oil collecting box device is arranged at the bottom of the lifting chain 4 and consists of an oil collecting box 121 and a fixing frame 122, and the fixing frame 122 is fixed on the metal frame 14 and plays a role in supporting the oil collecting box 121;

the protective cover 13 is arranged at the transmission position of the lifting chain 4.

The working process of the invention is as follows:

in the process of lifting the cargo carrying platform, the synchronous servo motor 1 drives the driving shaft 2, the driving shaft 2 drives the double-row chain wheel 3 to rotate, and the double-row chain wheel 3 drives the lifting chain 4 to lift; the lifting chain 4 connected with one side of the cargo carrying platform is tensioned due to the self weight of the cargo carrying platform and the weight of the cargo, and the lifting chain 4 at the other side of the cargo carrying platform droops due to the self weight; because the double-row chain wheel 3 is of a tooth-shaped structure, the lifting chain 4 is meshed with the double-row chain wheel 3, the phenomenon of tooth jumping in the operation process is avoided, and meanwhile, the lifting of the cargo carrying platform is mainly driven by the double-row chain wheel 3 without carrying out counter weight on the lifting chain 4; the lifting chain 4 enters the guide rail 6 under the guiding action of the first auxiliary guide wheel 8 and the second auxiliary guide wheel 9, and the chain rollers 5 on the lifting chain 4 are arranged at intervals, so that after the lifting chain 4 enters the guide rail 6, the part with the chain rollers 5 slides on the guide rail 6, and the part without the chain rollers 5 falls on the middle hollow parts of the two C-shaped guide rails 61 due to the self weight of the lifting chain 4, and is stacked and collected in sections; the spring device 10 assists the lifting chain 4 to slide downwards along the guide rail 6 for automatic collection through the traction force of the spring 103, and the baffle plate 11 prevents the chain roller 5 from sliding out along the guide rail 6 which inclines downwards;

in the descending process of the cargo carrying platform, the double-row chain wheel 3 drives the lifting chain 4 to be released downwards, the lifting chain 4 connected with the cargo carrying platform is always in a tensioning state, the lifting chain 4 connected with the spring device 10 on one side is driven by the double-row chain wheel 3 to slide out of the guide rail 6, the second auxiliary guide wheel 9 is mainly used for guiding the lifting chain 4 when the lifting chain 4 enters and exits the guide rail 6 and preventing the phenomenon of tooth jumping when the lifting chain 4 exits the guide rail 6, and the lifting chain 4 is subjected to certain pulling force when exiting the guide rail 6 and reacts on the second auxiliary guide wheel 9 to play a role of preventing the tooth jumping, so that the cargo carrying platform is smoothly descended.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.