CN220718378U - Hollow shaft horizontal assembly device - Google Patents

Abstract

The utility model discloses a hollow shaft horizontal assembly device, which comprises: the bracket comprises a bracket main body, a positioning rod, a hanging plate and a limiting plate. The bracket main body comprises a base plate, a positioning plate and a bearing plate, wherein a hoisting screw hole is formed in the middle of the base plate, one end of the base plate is provided with a counterweight reserved interface, one side, away from the counterweight reserved interface, of the base plate is connected with a hydraulic cylinder, the end, away from the counterweight reserved interface, of the base plate is connected with the positioning plate, a positioning rod mounting hole is formed in the middle of the positioning plate, the end, away from the base plate, of the positioning plate is connected with the bearing plate, and the bearing plate is provided with a first sliding groove; the positioning rod is arranged in the positioning rod mounting hole, and the end part of the positioning rod is provided with threads; the lifting plate is detachably connected to the bearing plate, a first through hole is formed in the middle of the lifting plate, one side of the lifting plate can be attached to the end surface of the hydraulic cylinder, and one side of the lifting plate, which is away from the hydraulic cylinder, is connected with the end surface of the hollow shaft; the limiting plates are of a fan-shaped annular structure, are arranged in pairs and are symmetrically connected to the end cover of the gear box. By adopting the arrangement, the hollow shaft can be quickly and accurately centered and installed.

Description

Hollow shaft horizontal assembly device

Technical Field

The application relates to the technical field of gear box manufacturing, in particular to a hollow shaft horizontal assembly device.

Background

Along with the increase of the torque density of the product, the hollow shaft of the speed increasing gear box is longer and longer to reach 3-5m. The hollow shaft assembly axis is horizontally loaded into the gearbox for operational space and safety: the O-shaped rubber sealing ring of the input shaft neck of the hollow shaft is required to be pressed into a matching hole of the shaft sleeve of the gear box (small interference fit), and the rolling bearing of the output shaft neck, the oil retainer and the like are installed into the matching hole of the end cover of the gear box (small interference fit).

The assembly mode commonly used at present is that the center of gravity position of the middle part of the hollow shaft assembly is sleeved with the lifting belt firstly, after visual centering, the hollow shaft assembly is pushed into the lifting point position from the output end of the gear box firstly, then supporting force is applied to the hollow shaft assembly in an auxiliary manner through the tool bar from the input end, meanwhile, the lifting point of the output end of the hollow shaft assembly moves to the tail end, and the assembly is knocked in place by the tool bar at the output end or is pressed in place by the tool pressing plate and the bolt.

The method has the defects that at least two persons are required to match, the centering accuracy is relatively poor, the O-shaped rubber sealing ring of the input shaft journal has the risk of abrasion (due to scratch or friction), the assembly time is long, the efficiency is low, the knocking method easily causes the problems of end face knocking deformation or anti-corrosion coating falling off, and the pressing plate pressing method easily causes the deformation of a threaded hole or a thin-wall piece (such as a oil retainer), and the like. Therefore, how to ensure the quick, accurate and centered loading of the hollow shaft assembly is a serious difficulty in the assembly of the gear box at present.

Therefore, how to ensure the quick, accurate and centered installation of the ultra-long hollow shaft assembly is a technical problem which needs to be solved by the person skilled in the art at present.

Disclosure of Invention

The application aims to provide a horizontal assembly device for a hollow shaft, which can avoid the difficulty in mounting the hollow shaft to a gear box due to overlong hollow shaft.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a hollow shaft horizontal assembly device for assisting in the horizontal assembly of a hollow shaft into a gearbox, comprising: the support comprises a support main body, a base plate, a positioning plate and a bearing plate, wherein a hoisting screw hole for hoisting the support main body is formed in the middle of the base plate, a counterweight reserving interface is formed in one end of the base plate and used for connecting a counterweight to maintain balance of the support main body and the hollow shaft, a hydraulic cylinder is connected to one side of the base plate, which is away from the counterweight reserving interface, the end, which is away from the counterweight reserving interface, of the base plate is connected with the positioning plate, a positioning rod mounting hole is formed in the middle of the positioning plate, the end, which is away from the base plate, of the positioning plate is connected with the bearing plate and used for connecting an external hoisting mechanism, and the bearing plate is provided with a first chute;

the positioning rod is arranged in the positioning rod mounting hole, the end part of the positioning rod is provided with threads, and the positioning rod is used for being connected with a mounting end cover of the gear box;

the lifting plate is detachably connected in the first sliding groove on the bearing plate through a limit sliding block, a first through hole is formed in the lifting plate and used for installing the positioning rod, the axis of the first through hole and the axis of the positioning rod installing hole are on the same straight line, one side, close to the hydraulic cylinder, of the lifting plate can be attached to the end face of the hydraulic cylinder, and one side, deviating from the hydraulic cylinder, of the lifting plate is connected with the end face of the hollow shaft;

limiting plates are of a fan-shaped annular structure, the limiting plates are arranged in pairs and symmetrically connected to the end cover of the gear box, and the inner circumference of each limiting plate is used for limiting radial large-amplitude swing of the hollow shaft.

Preferably, a baffle plate with a blind hole is connected to one side of the base plate, which is away from the counterweight reserved interface, a support plate with a second through hole is connected to one side of the base plate, which is away from the counterweight reserved interface, and the hydraulic cylinder penetrates through the second through hole and is installed in the blind hole of the baffle plate.

Preferably, a slot is formed on one side of the second through hole on the support plate.

Preferably, a reinforcing rib plate is arranged between the positioning plate and the base plate.

Preferably, the bearing plate is provided with a second chute for installing a lifting slide block, and the bracket main body is lifted and moved through the lifting slide block.

Preferably, the limit sliding block and the hoisting sliding block are connected to the bearing plate in a matched manner through a hexagon head bolt and a nut.

Preferably, the lifting plate is connected with the end face of the hollow shaft through an inner hexagon screw.

Preferably, the positioning rod is fixedly connected to the positioning plate through a nut.

Preferably, the limiting plates are two, and are in a quarter-circular ring structure.

Preferably, the bracket main body is a welding assembly.

Against the background of the above, the present application provides a hollow shaft horizontal assembly device for assisting the horizontal assembly of a hollow shaft into a gearbox, comprising: the bracket comprises a bracket main body, a positioning rod, a hanging plate and a limiting plate. The support main part includes the base plate, locating plate and bearing plate, the base plate middle part is equipped with the hoist and mount screw that is used for lifting support main part to remove, the one end of base plate is equipped with the counter weight and reserves the interface for connect the counter weight thing and maintain the balance of support main part and hollow shaft, base plate deviates from counter weight thing and reserves interface one side and be connected with the pneumatic cylinder, the end connection that the base plate deviates from counter weight thing and reserves the interface has the locating plate, the locating plate middle part is equipped with the locating lever mounting hole, the end connection that the locating plate was dorsad from the base plate has the bearing plate, be used for connecting outside lifting mechanism, the bearing plate is equipped with first spout. The locating rod is arranged in the locating rod mounting hole, the end part of the locating rod is provided with threads, and the locating rod is used for being connected with a mounting end cover of the gear box. And the lifting plate is detachably connected in the chute on the bearing plate through the limit sliding block, the lifting plate is provided with a first through hole for installing the positioning rod, the axis of the first through hole and the axis of the positioning rod installing hole are positioned on the same straight line, one side, close to the hydraulic cylinder, of the lifting plate can be attached to the end surface of the hydraulic cylinder, and one side, deviating from the hydraulic cylinder, of the lifting plate is connected with the end surface of the hollow shaft. The limiting plates are of a fan-shaped annular structure, the limiting plates are arranged in pairs and symmetrically connected to the end cover of the gear box, and the inner circumference of each limiting plate is used for limiting radial large-amplitude swing of the hollow shaft.

Specifically, when the hollow shaft is required to be installed, the bracket main body is lifted to the vicinity of the hollow shaft through the lifting screw holes, so that the hollow shaft is convenient to connect; the hanging plate is connected with the bracket main body through the limiting slide block, the limiting slide block is shifted in a movable manner, one side of the hanging plate is connected with the end face of the hollow shaft, the opposite side of the hanging plate is clung to the end face of the hydraulic cylinder, the locating rod passes through the locating rod mounting hole and the first through hole, then the limiting plate is mounted on the end face of the gear box to be mounted on the hollow shaft, the bearing plate is connected through the hanging mechanism, the whole device and the hollow shaft are hung, the hollow shaft is kept horizontal through the counterweight reserved interface, then the hanging mechanism drives the hollow shaft to pass through the limiting plate and be mounted in the gear box, when the hanging plate is mounted on the end part of the hollow shaft, the limiting plate is firstly taken down, the locating rod is made to be close to the end part of the gear box and connected with the end part of the hollow shaft, at the moment, the connection of the limiting slide block and the hanging plate is loosened, the hydraulic cylinder is started, the hanging plate is pushed to move along the path of the locating rod, and the hollow shaft is made to be pressed into the gear box. Therefore, when the hollow shaft is just installed, the limiting plate is adopted for rough positioning, the hollow shaft is prevented from shaking, when the hollow shaft is about to be installed, the positioning rod is connected with the end part of the gear box for fine positioning, and the hydraulic cylinder is used for stable press mounting.

In conclusion, by adopting the horizontal assembly device of the hollow shaft, the hollow shaft assembly can be quickly and accurately horizontally arranged in the gear box.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of a hollow shaft horizontal assembly device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a limiting plate according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a bracket main body according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating installation of a limiting plate according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a hollow shaft installation according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the initial assembly of a hollow shaft according to an embodiment of the present utility model;

fig. 7 is a schematic view of a hollow shaft assembled to an end according to an embodiment of the present utility model.

Wherein:

100-hollow shaft;

200-a gear box;

300-bracket main body, 310-base plate, 311-hoisting screw hole, 312-counterweight reserving interface, 313-hydraulic cylinder, 320-positioning plate, 321-positioning rod installing hole, 322-reinforcing rib plate, 330-bearing plate, 331-first chute, 332-hoisting slide block, 333-second chute, 340-baffle, 350-supporting plate and 351-second through hole;

400-positioning rod;

500-hanging plate, 510-limit slide block and 520-first through hole;

600-limiting plate.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In order to better understand the aspects of the present application, a further detailed description of the present application will be provided below with reference to the accompanying drawings and detailed description.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limitations of the present utility model.

Referring to fig. 1 to 7, the present embodiment provides a hollow shaft horizontal assembly device for assisting the hollow shaft 100 to be horizontally assembled into a gear box 200, comprising: the bracket comprises a bracket body 300, a positioning rod 400, a lifting plate 500 and a limiting plate 600. The support main body 300 includes base plate 310, locating plate 320 and bearing plate 330, the base plate 310 middle part is equipped with the hoist and mount screw 311 that is used for lifting support main body 300 to remove, the one end of base plate 310 is equipped with counter weight thing reservation interface 312, be used for connecting the counter weight thing and maintain the balance of support main body 300 and hollow shaft 100, base plate 310 deviates from counter weight thing reservation interface 312 one side and is connected with pneumatic cylinder 313, base plate 310 deviates from the end connection of counter weight thing reservation interface 312 has locating plate 320, locating plate 320 middle part is equipped with locating lever mounting hole 321, locating plate 320 deviates from base plate 310's end connection has bearing plate 330, be used for connecting outside lifting mechanism, bearing plate 330 is equipped with first spout 331. The positioning rod 400 is arranged in the positioning rod mounting hole 321, the end part of the positioning rod 400 is provided with threads, and the positioning rod 400 is used for being connected with a mounting end cover of the gear box 200. In the hanging plate 500, through the connecting in the spout of spacing slider 510 detachable on bearing plate 330, hanging plate 500 is equipped with first through-hole 520 and is used for the installation of locating lever 400, and the axis of first through-hole 520 is on same straight line with the axis of locating lever mounting hole 321, and the one side that hanging plate 500 is close to pneumatic cylinder 313 can be laminated with the pneumatic cylinder 313 terminal surface, and the one side that deviates from pneumatic cylinder 313 is connected with hollow shaft 100 terminal surface. The limiting plates 600 are in a fan-shaped annular structure, the limiting plates 600 are arranged in pairs, the limiting plates 600 are symmetrically connected to the end cover of the gear box 200, and the inner circumference of the limiting plates 600 is used for limiting the radial large-amplitude swing of the hollow shaft 100.

Specifically, the end of the hollow shaft 100 is generally mounted with rubber packing and other fittings, so that the assembly of the hollow shaft 100 into the gear case 200 includes two processes, namely, firstly, lifting the hollow shaft 100 by the bracket body 300 and loading the hollow shaft 100 by the movement of the external lifting mechanism, and then, when the hollow shaft 100 is mounted to the end, the hollow shaft 100 is press-fitted by the hydraulic cylinder 313 mounted on the bracket body 300.

In other words, when the hollow shaft 100 needs to be installed, the bracket body 300 is first lifted to the vicinity of the hollow shaft 100 through the lifting screw hole 311, so that the bracket body 300 is conveniently connected to the hollow shaft 100 through the lifting plate 500; the hanging plate 500 is connected with the bracket main body 300 through the limit sliding block 510, one side of the hanging plate 500 is connected with the end face of the hollow shaft 100, the opposite side is clung to the end face of the hydraulic cylinder 313, the locating rod 400 just and simultaneously passes through the locating rod mounting hole 321 and the first through hole 520 and keeps a straight line, then the limit plate 600 is mounted on the end face of the gear box 200 where the hollow shaft 100 needs to be mounted, the bearing plate 330 is connected through the hanging mechanism, the whole device and the hollow shaft 100 are hung, the counterweight is connected through the counterweight reserving interface 312 to keep the whole device and the hollow shaft 100 horizontal, then the hanging mechanism drives the hollow shaft 100 to be mounted in the gear box 200, and in order to prevent O-shaped rings at the end part of the hollow shaft from being worn due to shaking when the hollow shaft 100 is mounted, the limit plate 600 is mounted at the inlet of the end face of the gear box 200 for limiting shaking of the hollow shaft 100.

When the hydraulic support is mounted on the tail end of the hollow shaft 100, the O-shaped rubber sealing ring at the front end of the hollow shaft 100 and the tail end parts cannot be precisely mounted by the horizontal movement of an external lifting mechanism, so that the tail end of the hollow shaft 100 is precisely positioned by the positioning rod 400 on the support main body 300 and is horizontally and stably mounted by the hydraulic cylinder 313 on the support main body 300; at this time, the limiting plate 600 at the end face inlet of the gear box 200 is removed first, the positioning rod 400 is close to the end inlet of the gear box 200 and is connected with the end face inlet of the gear box 200, then the connection between the limiting slide block 510 and the lifting plate 500 is released, the hydraulic cylinder 313 is started, the hydraulic cylinder 313 pushes the lifting plate 500 to move along the path of the positioning rod 400, so that the hollow shaft 100 is pressed into the gear box 200, and the stable installation of the hollow shaft 100 is ensured and the hollow shaft 100 is not damaged by the pressing. Thus, when the hollow shaft 100 is just started to be mounted, the limiting plate 600 is used for rough positioning, so that the hollow shaft 100 is prevented from shaking, and when the hollow shaft 100 is about to be mounted, the positioning rod 400 is connected with the end of the gear box 200 for fine positioning, and the hydraulic cylinder 313 is used for stable press mounting.

In summary, with the hollow shaft horizontal assembly device provided as described above, the hollow shaft 100 assembly can be quickly and accurately horizontally installed into the gear box 200.

Preferably, a baffle 340 with a blind hole is connected to a side of the base plate 310 away from the counterweight reserved interface 312, a support plate 350 with a second through hole 351 is connected to a side of the base plate 310 away from the counterweight reserved interface 312, and the hydraulic cylinder 313 is installed in the blind hole of the baffle 340 through the second through hole 351.

Specifically, in the present embodiment, a baffle 340 and a support plate 350 for mounting the hydraulic cylinder 313 are disposed below the base plate 310, and blind holes are disposed on the baffle 340 for mounting the hydraulic cylinder 313; in order to prevent the hydraulic cylinder 313 from sagging or being unstable, a support plate 350 is provided at the middle of the hydraulic cylinder 313, a second through hole 351 is provided at the middle of the support plate 350, and the hydraulic cylinder 313 is installed in the blind hole through the second through hole 351 when installed.

Thus, the hydraulic cylinder 313 itself is supported by two supporting points, so that the hydraulic cylinder 313 can be installed more stably; in addition, the hydraulic cylinder 313 can be quickly installed when the bracket body 300 is required to be used, and the hydraulic cylinder 313 can be quickly and simply removed when the hollow shaft 100 is installed, thus facilitating maintenance and replacement of the hydraulic cylinder 313.

Of course, in this embodiment, the hydraulic cylinder 313 is preferably a press-fit power source, and other power sources, such as a cylinder or a linear motor, may be selected according to practical situations, so long as the requirements can be met, and the present disclosure is not limited specifically.

Preferably, a slot is provided at one side of the second through hole 351 of the support plate 350.

It will be appreciated that in this embodiment, the preferred power source is the hydraulic cylinder 313, the hydraulic cylinder 313 has an oil inlet and an oil outlet, and the oil inlet and the oil outlet are further connected to an oil inlet and an oil outlet hose, so that the installation of the hydraulic cylinder 313 is not affected, a slot is provided on one side of the second through hole 351, and the oil inlet and the oil outlet and the oil inlet and outlet hose can pass through.

Of course, the direction and size of the specific slot may be adjusted according to the actual situation, as long as the installation and stability of the hydraulic cylinder 313 are not affected.

Preferably, a stiffener plate 322 is disposed between the positioning plate 320 and the base plate 310.

Specifically, in order to enable the hydraulic cylinder 313 to be applied in the axial direction of the hollow shaft 100 without tilting to damage the hollow shaft 100 when the hollow shaft 100 is finally press-fitted, it is necessary to provide the telescopic direction of the hydraulic cylinder 313 parallel to the axial direction of the positioning rod 400, so that the positioning plate 320 is vertically connected to the base plate 310 in this embodiment, and the hydraulic cylinder 313 is installed in parallel under the base plate 310.

It will be appreciated that the positioning plate 320 bears the gravity of the base plate 310 and the gravity of the components mounted on the base plate 310, and the right angle is easily damaged, so that the reinforcing rib plates 322 are disposed at the connection between the base plate 310 and the positioning plate 320, and the reinforcing rib plates are disposed at both sides of the base plate 310. Thus, the strength of the entire bracket body 300 can be enhanced, and the service life thereof can be increased.

Preferably, the bearing plate 330 is provided with a second chute 333 for mounting the lifting slider 332, and the bracket body 300 is lifted and moved by the lifting slider 332.

It can be understood that when the hollow shaft 100 starts to be installed, the whole movement is realized by horizontally moving the externally connected lifting mechanism, so that the bracket main body 300 needs to be stably connected to the external lifting mechanism in order to make the installation process of the hollow shaft 100 smoother, therefore, in this embodiment, the second sliding chute 333 is arranged on the bearing plate 330, and the lifting sliding block 332 is installed in the second sliding chute 333; in this way, the lifting mechanism can lift the whole body only by connecting the lifting slide block 332, and the lifting is stable and the operation is simple.

Preferably, the limit slider 510 and the lifting slider 332 are both connected to the bearing plate 330 by a hexagon bolt and nut.

It can be understood that the bolt and the nut are connected conveniently and stably, the maintenance and the replacement are easy, and the cost is lower. In this embodiment, the nut is preferably an I-type hex nut.

Preferably, the lifting plate 500 is connected with the end surface of the hollow shaft 100 through socket head cap screws.

In the present embodiment, the hollow shaft 100 is connected with the hanging plate 500 through socket head cap screws during the assembly process to the gear case 200, wherein the number of socket head cap screws can be adjusted according to the actual situation, so long as the hollow shaft 100 can be stably connected.

Preferably, the positioning rod 400 is fixedly coupled to the positioning plate 320 by a nut.

Specifically, when the hollow shaft 100 is mounted to the end, the positioning rod 400 is required to perform the press-fit positioning, and since the hanger plate 500 and the limit slider 510 move along the path of the positioning rod 400, in order to prevent the bracket body 300 from moving to the opposite side of the mounting direction of the hollow shaft 100 when the hydraulic cylinder 313 is press-fitted, the positioning rod 400 is connected with a fixing nut at one end of the positioning plate 320.

Preferably, the limiting plate 600 has two limiting plates and is in a quarter-circle structure.

In this embodiment, the limiting plate 600 is preferably two and has a quarter-circle structure, so that the installation accuracy of the hollow shaft 100 is ensured and the installation is simple and convenient.

Of course, a plurality of pairs of limiting plates 600 may be provided according to actual circumstances, as long as they can limit the hollow shaft 100.

Preferably, the holder body 300 is a weldment.

It can be appreciated that, in order to enable the stent body 300 to have higher strength, the stent body 300 is integrally connected by a welding process; in addition, the assembly welding piece has higher integral integrity and lower cost.

In summary, with the hollow shaft horizontal assembly device, the hollow shaft 100 is connected to the bracket main body 300, and the counterweight is adjusted, so that the hollow shaft 100 can be kept horizontal, the limiting plate 600 is installed at the end face inlet of the gear box 200, the hollow shaft 100 is positioned, the installation process is more stable, the limiting plate 600 is removed until the hollow shaft 100 is installed at the tail end, the positioning rod 400 is used for positioning, and the hydraulic cylinder 313 is used for press-fitting, so that the hollow shaft 100 is ensured to be installed quickly, stably and accurately from the beginning to the end.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The embodiments of the present utility model have been described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. A hollow shaft horizontal assembly device for assisting the horizontal assembly of a hollow shaft (100) into a gearbox (200), characterized by comprising:

the support body (300) comprises a base plate (310), a positioning plate (320) and a bearing plate (330), wherein a lifting screw hole (311) for lifting the support body (300) is formed in the middle of the base plate (310), a counterweight reserved interface (312) is formed in one end of the base plate (310) and used for connecting a counterweight to maintain the balance of the support body (300) and the hollow shaft (100), a hydraulic cylinder (313) is connected to one side, deviating from the counterweight reserved interface (312), of the base plate (310), the end, deviating from the counterweight reserved interface (312), of the base plate (310) is connected with the positioning plate (320), a positioning rod mounting hole (321) is formed in the middle of the positioning plate (320), the end, deviating from the base plate (310), of the positioning plate (320) is connected with the bearing plate (330) and used for connecting an external lifting mechanism, and the bearing plate (330) is provided with a first chute (331);

the positioning rod (400) is arranged in the positioning rod mounting hole (321), threads are arranged at the end part of the positioning rod, and the positioning rod (400) is used for being connected with a mounting end cover of the gear box (200);

the lifting plate (500) is detachably connected in the first sliding groove (331) on the bearing plate (330) through a limit sliding block (510), the lifting plate (500) is provided with a first through hole (520) for mounting the positioning rod (400), the axis of the first through hole (520) and the axis of the positioning rod mounting hole (321) are on the same straight line, one side, close to the hydraulic cylinder (313), of the lifting plate (500) can be attached to the end face of the hydraulic cylinder (313), and one side, deviating from the hydraulic cylinder (313), of the lifting plate is connected with the end face of the hollow shaft (100);

limiting plates (600) are of a fan-shaped annular structure, the limiting plates (600) are arranged in pairs, the limiting plates (600) are symmetrically connected to end covers of the gear box (200), and the inner circumference of each limiting plate (600) is used for limiting radial large swing of the hollow shaft (100).

2. The hollow shaft horizontal assembly device according to claim 1, wherein a baffle (340) with a blind hole is connected to one side of the base plate (310) away from the counterweight reserving interface (312), a support plate (350) with a second through hole (351) is connected to one side of the base plate (310) away from the counterweight reserving interface (312), and the hydraulic cylinder (313) is installed in the blind hole of the baffle (340) through the second through hole (351).

3. The hollow shaft horizontal assembly device according to claim 2, wherein a slot is provided on one side of the second through hole (351) on the support plate (350).

4. The hollow shaft horizontal assembly device according to claim 1, wherein a reinforcing rib plate (322) is provided between the positioning plate (320) and the base plate (310).

5. Hollow shaft horizontal assembly device according to claim 1, characterized in that the bearing plate (330) is provided with a second chute (333) for mounting a lifting slide (332), by means of which lifting slide (332) the bracket body (300) is lifted and moved.

6. The hollow shaft horizontal assembly device according to claim 5, wherein the limit slider (510) and the lifting slider (332) are connected to the bearing plate (330) by means of a hexagonal bolt and nut fit.

7. The hollow shaft horizontal assembly device according to claim 1, wherein the lifting plate (500) is connected with the end surface of the hollow shaft (100) through socket head cap screws.

8. The hollow shaft horizontal assembly device according to claim 1, wherein the positioning rod (400) is fixedly connected to the positioning plate (320) by a nut.

9. The hollow shaft horizontal assembly device according to claim 1, wherein the limiting plates (600) are two and have a quarter-circular ring structure.

10. The hollow shaft horizontal assembly device according to any one of claims 1-9, wherein the bracket body (300) is a weldment.