1. A pipe gallery spreader, comprising: the hydraulic support comprises a main beam body, a hydraulic oil cylinder and a suspender, wherein one end of the hydraulic oil cylinder is uniformly arranged on the main beam body, the other end of the hydraulic oil cylinder is connected with the suspender, the suspender is used for connecting a pipe gallery body,

the hydraulic oil cylinders are divided into at least three groups, each group of hydraulic oil cylinders are connected in parallel, and the hydraulic oil cylinders in each group are adjacent to each other and are connected in series.

2. The pipe gallery lifting appliance according to claim 1, wherein the hydraulic cylinder includes a cylinder body, a mounting seat and a connecting seat, one end of the cylinder body is connected with the mounting seat through a first pin shaft, a piston rod at the other end of the cylinder body is connected with the connecting seat through a second pin shaft,

the first pin shaft and the second pin shaft are arranged vertically.

3. The pipe gallery lifting appliance according to claim 2, wherein the suspension rod is a threaded rod, one end of the suspension rod is connected with the connecting seat through a nut, and the other end of the suspension rod passes through a lifting hole of the pipe gallery body and is connected with the pipe gallery body through a nut.

4. The pipe gallery hanger of claim 2, further comprising a lifting lug welded to the main beam body, the main beam body having a through hole, the hydraulic cylinder being disposed in the through hole.

5. The pipe rack spreader of claim 1, wherein the girder bodies comprise a first half girder body and a second half girder body, the first half girder body being connected with the second half girder body by bolts.

6. A pipe gallery spreader as claimed in claim 2 including three sets of said hydraulic rams, wherein a first set includes 6 said hydraulic rams, a second set includes 6 said hydraulic rams and a third set includes 8 said hydraulic rams.

7. A hydraulic system is characterized by comprising at least three groups of hydraulic oil cylinder control modules, a hydraulic pump and an oil tank, wherein the hydraulic oil cylinder control modules are connected with the hydraulic pump in parallel, the oil tank supplies oil to the hydraulic pump,

the hydraulic ram control module comprises a plurality of hydraulic rams of any one of claims 1 to 6 connected in series with one another.

8. The hydraulic system of claim 7, wherein the hydraulic ram control module further comprises a balancing valve bank and a solenoid directional valve, the hydraulic ram is connected with the balancing valve bank, the balancing valve bank is connected with the solenoid directional valve,

and a rodless cavity of the hydraulic oil cylinder is connected with a pilot port of the balance valve group.

9. The hydraulic system as claimed in claim 8, wherein a stack check throttle is installed between the electromagnetic directional valve and the balancing valve set.

10. The hydraulic system of claim 7, wherein a cooler and a filter are mounted to the return port of the tank.

Background

Along with the increase of social urbanization population, the diversification of living requirements increases, and municipal facilities will increase, in order to satisfy city construction development needs, make full use of underground space, need to construct the underground pipe gallery and centralize municipal facilities. Therefore, a large-tonnage multi-cabin pipe gallery needs to be buried underground so as to meet the living demands of people.

Because the large-tonnage fabricated pipe gallery is of a concrete structure with large size and weight. Multiple hoisting points are required to be arranged for hoisting, the overall dimension of the long-segment large-tonnage fabricated comprehensive pipe gallery is 8m (long) × 13m (wide) × 4.2m (high), the weight is 402t, and the assembled comprehensive pipe gallery is divided into four cabins with different sizes, so that the center of mass and the centroid of the pipe gallery are not overlapped. The stress of each point of the existing lifting appliance is different, namely, when the lifting appliance lifts, the pipe gallery has unbalance loading.

In other words, because the pipe gallery is poured by concrete, the pipe gallery is required to be ensured to be horizontal during hoisting; but pipe gallery centroid and barycenter do not coincide, can take place the unbalance loading phenomenon when lifting by crane, if do not carry out the leveling to the pipe gallery, will produce the damage to the pipe gallery.

Disclosure of Invention

The invention provides a pipe gallery lifting appliance and a hydraulic system, which are used for solving the defects of unbalance loading caused by the fact that the mass center and the centroid of a long-segment large-tonnage fabricated comprehensive pipe gallery are not coincident and the stress of each point of the lifting appliance is different in the prior art, and the pipe gallery pieces are lifted by the lifting appliance under the same stress at each point, so that the pipe gallery pieces are lifted and dropped stably in a balanced manner, and the damage to the pipe gallery during lifting is reduced.

The invention provides a pipe rack lifting appliance, comprising: the hydraulic support comprises a main beam body, a hydraulic oil cylinder and a suspender, wherein one end of the hydraulic oil cylinder is uniformly arranged on the main beam body, the other end of the hydraulic oil cylinder is connected with the suspender, the suspender is used for connecting a pipe gallery body,

the hydraulic oil cylinders are divided into at least three groups, each group of hydraulic oil cylinders is independently controlled, and the hydraulic oil cylinders in each group are adjacent to each other and are connected in series.

According to the pipe gallery lifting appliance provided by the invention, the hydraulic oil cylinder comprises a cylinder body, a mounting seat and a connecting seat, one end of the cylinder body is connected with the mounting seat through a first pin shaft, a piston rod at the other end of the cylinder body is connected with the connecting seat through a second pin shaft,

the first pin shaft and the second pin shaft are arranged vertically.

According to the pipe gallery lifting appliance provided by the invention, the lifting rod is a threaded rod, one end of the lifting rod is connected with the connecting seat through a nut, and the other end of the lifting rod penetrates through the lifting hole of the pipe gallery body and is connected with the pipe gallery body through the nut.

The pipe gallery lifting appliance provided by the invention further comprises a lifting lug, wherein the lifting lug is welded on the main beam body, the main beam body is provided with a through hole, and the hydraulic oil cylinder is arranged in the through hole.

According to the pipe gallery lifting appliance provided by the invention, the main beam body comprises a first half main beam body and a second half main beam body, and the first half main beam body is connected with the second half main beam body through a bolt.

The pipe gallery lifting appliance provided by the invention comprises three groups of hydraulic oil cylinders, wherein the first group comprises 6 hydraulic oil cylinders, the second group comprises 6 hydraulic oil cylinders, and the third group comprises 8 hydraulic oil cylinders.

The invention also provides a hydraulic system, which comprises at least three groups of hydraulic oil cylinder control modules, a hydraulic pump and an oil tank, wherein the hydraulic oil cylinder control modules are connected with the hydraulic pump in parallel, the oil tank supplies oil to the hydraulic pump,

the hydraulic oil cylinder control module comprises a plurality of hydraulic oil cylinders which are connected in series.

According to the hydraulic system provided by the invention, the hydraulic oil cylinder control module further comprises a balance valve group and an electromagnetic reversing valve, the hydraulic oil cylinder is connected with the balance valve group, the balance valve group is connected with the electromagnetic reversing valve,

and a rodless cavity of the hydraulic oil cylinder is connected with a pilot port of the balance valve group.

According to the hydraulic system provided by the invention, a superposed one-way throttle valve is arranged between the electromagnetic reversing valve and the balance valve group.

According to the hydraulic system provided by the invention, a cooler and a filter are installed on an oil return opening of the oil tank.

According to the pipe gallery lifting appliance provided by the invention, the hydraulic oil cylinders are uniformly arranged on the main beam body and divided into at least three groups to be connected in parallel, the levels of the main beam body can be determined by the at least three groups of hydraulic oil cylinders, the hydraulic oil cylinders in each group are connected in series, so that the stress of each hydraulic oil cylinder is the same, the pipe gallery lifting appliance with a self-balancing function is realized, and the damage of a pipe gallery during lifting can be maximally reduced in a balanced state.

Further, the invention also provides a hydraulic system which can realize the specific actions of the pipe rack lifting appliance of the application, and therefore, the hydraulic system also has the advantages of the pipe rack lifting appliance.

Drawings

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

Figure 1 is one of the schematic views of a pipe rack spreader provided by the present invention;

figure 2 is a second schematic view of a pipe rack spreader according to the invention

Figure 3 is a top view of a pipe rack spreader provided by the present invention;

FIG. 4 is a schematic diagram of a hydraulic cylinder structure of a pipe gallery spreader provided by the present invention;

fig. 5 is a schematic diagram of a hydraulic system provided by the present invention.

Reference numerals:

100: a main beam body; 101: lifting lugs; 102: a first half girder;

103: a second half girder; 110: a pipe gallery body; 200: a hydraulic cylinder;

201: a cylinder body; 202: a mounting seat; 203: a connecting seat;

204: a first pin shaft; 205: a second pin shaft; 300: a boom;

400: a hydraulic oil cylinder control module; 401: a hydraulic pump; 402: an oil tank;

412: a superposed one-way throttle valve; 411: an electromagnetic directional valve; 410: a balancing valve bank;

413: a cooler; 414: a filter; 415: an overflow valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Embodiments of the present invention will be described below with reference to fig. 1 to 5. It is to be understood that the following description is only exemplary embodiments of the present invention and is not intended to limit the present invention.

As shown in fig. 1 and 2, the present invention provides a pipe rack spreader comprising: the main beam body 100, hydraulic cylinder 200 and jib 300, hydraulic cylinder 200's one end evenly sets up on the main beam body 100, and hydraulic cylinder 200's the other end is connected with jib 300, and jib 300 is used for connecting the pipe gallery body 110.

The hydraulic oil cylinders 200 are divided into at least three groups, each group of hydraulic oil cylinders 200 can be independently controlled in parallel, and the hydraulic oil cylinders 200 in each group are adjacent to each other and are connected in series.

In other words, the main beam body 100 is connected to the hydraulic ram 200, and the hydraulic ram 200 is connected to the pipe gallery body 110 via the boom 300.

Further, since the hydraulic cylinders 200 are uniformly installed on the girder body 100, the hydraulic cylinders 200 are maintained perpendicular to the girder body 100 during operation, and thus each hydraulic cylinder 200 of each set is equally stressed.

In an alternative embodiment of the invention, the pipe gallery spreader includes three sets of hydraulic rams 200, wherein the first set includes 6 hydraulic rams 200, the second set includes 6 hydraulic rams 200, and the third set includes 8 hydraulic rams 200.

Under actual operating conditions, the hydraulic oil cylinders 200 in each group can be used simultaneously or independently, in other words, when hoisting a pipe gallery with 8m, the first group comprises 6 hydraulic oil cylinders 200, the second group comprises 6 hydraulic oil cylinders 200, and the third group comprises 8 hydraulic oil cylinders 200 which are started simultaneously.

When hoisting a 4m pipe gallery, through the manual valve, the first group opens 3 hydraulic cylinders 200 of the inner ring, the second group opens 3 hydraulic cylinders 200 of the inner ring, and the third group opens 4 hydraulic cylinders 200 of the inner ring. Namely, only 10 oil cylinders in the middle are used for hoisting.

Therefore, the pipe gallery lifting appliance can lift pipe galleries of different sizes, and is wide in application range.

As shown in fig. 3, hydraulic rams 200 are divided into at least three groups, corresponding to at least three force points. Since three points may define a plane, at least three sets of hydraulic rams 200 may ensure that the pipe gallery 110 is lifted horizontally.

Furthermore, a force sensor may be mounted on each hydraulic ram 200 and may be monitored in real time via a display screen connected to the controller when the pipe gallery 110 is hoisted.

As shown in fig. 4, in an alternative embodiment of the present invention, the hydraulic cylinder 200 includes a cylinder body 201, a mounting seat 202 and a connecting seat 203, wherein one end of the cylinder body 201 is connected to the mounting seat 202 through a first pin 204, and a piston rod at the other end of the cylinder body 201 is connected to the connecting seat 203 through a second pin 205.

The first pin 204 and the second pin 205 are arranged perpendicularly.

In addition, the cylinder body 201 of the hydraulic oil cylinder 200 is arranged in the main beam body 100, so that the height space is saved

In other words, the hydraulic cylinder 200 is connected to the girder 100 through the mounting seat 202, and the piston rod of the hydraulic cylinder 200 is connected to the boom 300 through the connecting seat 203. Spatially, the first pin 204 and the second pin 205 are arranged in a cross shape.

Through first round pin axle 204 and the perpendicular arrangement of second round pin axle 205, when the pipe gallery body 110 in the lift or handling process, no matter the pipe gallery body 110 is the swing of X direction or Y direction, jib 300 all can be adjusted according to the angle of pipe gallery body 110, can not harm pipe gallery body 110.

With continued reference to fig. 4, in an alternative embodiment of the present invention, the hanger bar 300 is a threaded rod, one end of the hanger bar 300 is connected to the connection base 203 by a nut, and the other end of the hanger bar 300 passes through a lifting hole of the tube lane body 110 and is connected to the tube lane body 110 by a nut. The height of the lifting appliance is reduced, and the space is saved.

Because gallery body hole for hoist diameter ratio jib diameter is only greater than ten millimeters, and the hoisting point is many again, so when traditional hoist interlude jib, it is more time-consuming. But because hydraulic cylinder 200 is the articulated form, can swing, so to the jib 300 interlude piping lane lifting hole can be more convenient for operate.

With continued reference to fig. 1, in one embodiment of the invention, the pipe gallery spreader further comprises lifting lugs 101, the lifting lugs 101 being welded to the main beam body 100. The main beam body 100 is provided with a through hole, and the hydraulic oil cylinder 200 is arranged in the through hole. Reduce the space of piping lane hoist.

With continued reference to fig. 3, in another embodiment of the present invention, the girder body 100 includes a first half girder body 102 and a second half girder body 103, and the first half girder body 102 is connected to the second half girder body 103 by bolts. The first half girder 102 and the second half girder 103 are symmetrical structures.

Further, lifting lugs 101 are respectively arranged on the first half girder body 102 and the second half girder body 103, and the positions of the lifting lugs 101 are symmetrical and uniform.

As shown in fig. 5, the present invention further provides a hydraulic system, which includes at least three sets of hydraulic cylinder control modules 400, hydraulic pumps 401 and oil tanks 402, wherein the hydraulic cylinder control modules 400 are connected in parallel with each other and are connected with the hydraulic pumps 401, and the oil tanks 402 supply oil to the hydraulic pumps 401.

Further, hydraulic ram control module 400 includes a plurality of hydraulic rams 200 described above connected in series with one another. Each hydraulic cylinder 200 is controlled by a stop valve.

Specifically, each set of hydraulic ram control modules 400 is connected in parallel. The hydraulic cylinders 200 in each set of hydraulic cylinder control modules 400 are connected in series end to end with each other.

Alternatively, each set of hydraulic ram control modules 400 may be individually controlled by a shut-off valve.

With continued reference to fig. 5, in another embodiment of the present invention, the hydraulic cylinder control module 400 further includes a balancing valve set 410 and an electromagnetic directional valve 411, the hydraulic cylinder 200 is connected to the balancing valve set 410, and the balancing valve set 410 is connected to the electromagnetic directional valve 411. The balancing valve set 410 can balance the pressure of each group of hydraulic oil cylinders, so that the pressure of each group of hydraulic oil cylinders is balanced, and the functions of pressure maintaining and constant pressure are also achieved.

Further, the rodless chamber of the hydraulic cylinder 200 is connected to the pilot port of the balance valve block 410. The balancing valve block 410 includes a balancing valve and a check valve.

In another alternative embodiment of the present invention, a superposition type one-way throttle valve 412 is installed between the electromagnetic directional valve 411 and the balance valve group 410.

In other words, the hydraulic oil flowing out of the electromagnetic directional valve 411 is speed-regulated by the stack type one-way throttle valve 412 before entering the balance valve group 410, and the hydraulic oil flows out of the rodless cavity of the hydraulic oil cylinder 200 and enters the electromagnetic directional valve 411 after being speed-regulated by the stack type one-way throttle valve 412.

Further, in one embodiment of the present invention, the oil return port of the oil tank 402 is installed with a cooler 413 and a filter 414.

In addition, the hydraulic system further comprises a relief valve 415 connected with the hydraulic oil cylinder control module 400 in parallel and a two-position four-way electromagnetic directional valve connected with the relief valve 415 in parallel.

Further, the hydraulic pump 401 selects a plunger pump, and is driven by an electric motor. The oil outlet of the hydraulic pump 401 is provided with a check valve to prevent backflow.

According to the pipe gallery lifting appliance provided by the invention, the hydraulic oil cylinders are uniformly arranged on the main beam body and are divided into at least three groups which are connected in parallel, the level of the main beam body can be determined by the at least three groups of hydraulic oil cylinders, the hydraulic oil cylinders in each group are connected in series, so that the stress of each hydraulic oil cylinder is the same, the pipe gallery lifting appliance with a self-balancing function is realized, and the damage of a pipe gallery during lifting can be maximally reduced in a balanced state.

The working process of hoisting based on the pipe gallery lifting appliance and the hydraulic system comprises the following steps:

connecting the lifting appliance with lifting equipment;

resetting all the hydraulic oil cylinders to ensure that the extension lengths of piston rods of all the hydraulic oil cylinders are consistent; the lower end surfaces of the suspenders are on the same plane;

disassembling a nut below the suspender, and lifting the suspender to a certain height;

moving the hoisting equipment to enable the hoisting rod to be over against the hoisting hole of the pipe gallery body;

after alignment, the hoisting equipment is lowered, so that the suspender is inserted into the hoisting hole of the pipe gallery body, and the depth of the suspender inserted into the hoisting hole of the pipe gallery is ensured to be consistent;

screwing a nut in the pipe gallery cabin to ensure that the length of the exposed screw of the suspender is not less than 100 mm;

starting a hydraulic pump of the pipe gallery lifting appliance, and flashing red lights and the like in the three-color lamp;

simultaneously starting all the hydraulic oil cylinders to ensure that each hydraulic oil cylinder is subjected to the same force;

starting the hoisting equipment to make the pipe gallery stand 50-100 mm away from the ground; enabling the hydraulic lifting appliance to carry out self-balancing on the hydraulic oil cylinder, and enabling the pipe gallery body to be in a horizontal state;

and starting the hoisting equipment again to hoist the pipe gallery body.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.