CN113305778A

CN113305778A - Manipulator bearing dismounting device

Info

Publication number: CN113305778A
Application number: CN202110586566.7A
Authority: CN
Inventors: 覃忠奎; 万永斌; 张乐; 林靖朋
Original assignee: Shanghai Fifth Steel Equipment Engineering Co ltd; MCC Baosteel Technology Services Co Ltd
Current assignee: Shanghai Fifth Steel Equipment Engineering Co ltd; MCC Baosteel Technology Services Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-08-27

Abstract

The invention provides a manipulator bearing dismounting device, which comprises a base, a driving mechanism and a press-fitting tool arranged above the base; the press-fitting tool comprises a press-fitting piece extending towards the direction of the base and used for abutting against the second bearing; the driving mechanism is used for driving the press fitting piece to move up and down; the inner ring of the second bearing in the main shaft of the manipulator is pressed through the press fitting piece which moves up and down, the elasticity of the disc spring sheet between the first bearing and the second bearing is overcome, and the lock nut of the inner ring of the bearing is taken out, so that the main shaft of the manipulator is disassembled and assembled.

Description

Manipulator bearing dismounting device

Technical Field

The invention relates to the field of forging manipulators, in particular to a manipulator bearing dismounting device.

Background

A large bar radial forging press, such as a large-metallurgy special steel 16MN radial forging press, is mainly composed of a machine body, a main shaft, a turbine shaft, a rotation compensation system and the like. The radial forging machine has the advantages that cracks are easy to occur at parts such as the fork shaft of the operating machine of the radial forging machine, the main shaft of the operating machine needs to be disassembled every year, parts such as the fork shaft are replaced, all bearing parts are checked, and stable operation of equipment in a period is guaranteed. The internal structure of the manipulator equipment is complex, generally, the manipulator equipment mainly comprises bearing components such as a front end bearing, a tail end turbine bearing, 1 set of manipulator clamping system bearing and the like, the requirement on equipment installation precision is high, the difficulty in equipment maintenance is high, and particularly the main shaft bearing part is arranged. In the main shaft of the manipulator, each group of bearing outer ring parts are provided with disc reeds, and when a bearing compression nut is fastened each time, the elasticity of the disc reeds needs to be overcome, so that the bearing can be installed at a fixed position.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention provides a device for mounting and dismounting a bearing of a manipulator, which has a simple structure and is convenient to operate.

A manipulator bearing dismounting device comprises a base, a driving mechanism and a press-fitting tool arranged above the base; the press-fitting tool comprises a press-fitting piece extending towards the direction of the base and used for abutting against the second bearing; the driving mechanism is used for driving the press fitting piece to move up and down.

Preferably, the driving mechanism is a hydraulic cylinder arranged on the press-fitting tool, the press-fitting tool comprises a pull rod, one end of the pull rod is connected to the base, and the other end of the pull rod can be detachably connected to a piston rod of the hydraulic cylinder.

Preferably, the press fitting tool further comprises a pressing plate, wherein the press fitting part is annular and is arranged on the lower end face of the press fitting plate.

Preferably, the pressing piece comprises a pressing part and a connecting part connected with the pressing part, and the connecting part comprises a connecting part body, a hollow hole allowing a lock nut to pass through and an avoiding groove for avoiding the lock nut when the pressing piece moves up and down.

Preferably, the machine base is further provided with an adjusting device, the adjusting device comprises a plurality of hydraulic jacks, and the hydraulic jacks are annularly arranged.

Preferably, still include the flushing station, the flushing station includes oil tank, flush pump and flushing line, the oil tank the flush pump with the flushing line communicates in proper order, the flushing line can stretch into in the equipment outer axle and the fork axle spaced space.

As described above, the manipulator bearing mounting and dismounting device according to the present invention has the following advantageous effects:

the inner ring of the second bearing in the main shaft of the manipulator is pressed through the press fitting piece which moves up and down, the elasticity of the disc spring sheet between the first bearing and the second bearing is overcome, and the lock nut of the inner ring of the bearing is taken out, so that the main shaft of the manipulator is disassembled and assembled.

Drawings

FIG. 1 is a schematic view of a prior art manipulator spindle.

Fig. 2 is a schematic structural view of the manipulator bearing dismounting device applied to the manipulator main shaft.

FIG. 3 is a schematic view of the tie rod engaged by a threaded sleeve according to the present invention.

Reference numerals:

100. a main shaft; 110. a fork shaft; 120. an equipment outer shaft; 130. a first bearing; 131. a second bearing; 140. a disc reed; 150. a lock nut; 200. a machine base; 300. pressing and mounting a tool; 310. pressing and assembling; 311. a press-fitting section; 312. a connecting portion; 313. hollowing out holes; 314. an avoidance groove; 320. pressing a plate; 400. a hydraulic cylinder; 410. a pull rod; 411. a threaded sleeve; 500. a hydraulic jack; 600. a rinsing station; 610. an oil tank; 620. a flush pump; 630. and (4) flushing the pipe.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.

As shown in fig. 1, a prior art manipulator main shaft 100 of the present invention includes an equipment outer shaft 120 in which an equipment fork shaft 110 is coaxially disposed with the equipment fork shaft 110, and the fork shaft 110 is disposed inside the equipment outer shaft 120. Two bearings, namely a first bearing 130 and a second bearing 131, are arranged between the fork shaft 110 and the external equipment shaft 120, and the two bearings are arranged along the axial direction. A disc spring 140 is abutted between the first bearing 130 and the second bearing 131, the end face of the first bearing 130 departing from the direction of the second bearing 131 abuts against a shaft shoulder of the fork shaft 110, and the end face of the second bearing 131 departing from the direction of the first bearing 130 is fixed by a lock nut 150.

As shown in fig. 2, the manipulator bearing dismounting device according to an embodiment of the present invention includes a base 200, a driving mechanism, and a press-fitting tool 300 disposed above the base 200; the press-fitting tool 300 comprises a press-fitting member 310 extending towards the base 200 and used for abutting against the second bearing 131; the driving mechanism is used for driving the pressing piece 310 to move up and down.

When the bearing removing apparatus is used to remove the bearing in the manipulator spindle 100, the spindle 100 is first placed on the housing 200, the axial direction of the spindle 100 is the vertical direction perpendicular to the upper end surface of the housing 200, and the press-fitting member 310 is substantially aligned with the inner ring position of the second bearing 131 of the housing 200. And starting a driving mechanism, wherein the driving mechanism drives the pressing piece 310 to move downwards, abuts against the position of the inner ring of the second bearing 131 of the machine base 200 and drives the inner ring of the second bearing 131 to move downwards in the axial direction. When the second bearing 131 moves to a certain distance, the lock nut 150 can be removed, so that the second bearing 131 can be disassembled, and further, the first bearing 130, the second bearing 131, the disc spring 140, the fork shaft 110 and the equipment outer shaft 120 can be separated.

As shown in fig. 2, in the present embodiment, the driving mechanism is a hydraulic cylinder 400 disposed on the press-fitting tool 300, the press-fitting tool 300 includes a pull rod 410, one end of the pull rod 410 is connected to the base 200, and the other end of the pull rod 410 is detachably connected to a piston rod of the hydraulic cylinder 400. Press-fitting tool 300 includes a pressing plate 320, wherein hydraulic cylinder 400 is located at the upper end surface of pressing plate 320, and press-fitting member 310 is located at the lower end surface of pressing plate 320. When the second bearing 131 of the spindle 100 needs to be pressed down, the hydraulic cylinder 400 is started, the piston rod is continuously contracted, the driving pressure plate 320 moves towards the base 200, and the pressing assembly 310 is driven to press down the second bearing 131 of the spindle 100. In order to make uniform the force of the pressing member 310 pressing down the outer bearing of the main shaft 100, the pressing member 310 is annular and disposed on the lower end surface of the pressing plate. Of course, as shown in fig. 3, the pull rod 410 may be connected by the threaded sleeve 411 in view of the length difference of the main shaft 100, so as to adapt the length of the pull rod 410 to the length of the main shaft 100.

As shown in fig. 2, the press-fitting member 310 includes a press-fitting portion 311 and a coupling portion 312 engaged with the press-fitting portion 311, and the coupling portion 312 includes a coupling portion body, a hollow hole 313 allowing the lock nut 150 to pass therethrough, and an escape groove 314 for escaping the lock nut 150. As shown in fig. 2, the escape groove 314 is formed to extend substantially in the up-down direction of the connecting portion body (i.e., the axial direction of the main shaft 100), and the hollow hole 313 penetrates the connecting portion body in the radial direction of the main shaft 100. Of course, the hollow hole 313 may be a long hole or the like. In the present embodiment, the pressing member 310 is formed by engaging the connecting portion 312 and the pressing portion 311. When the second bearing 131 of the spindle 100 is pressed down by the press-fitting portion 311, the avoiding groove 314 avoids the lock nut 150, and when the second bearing 131 of the spindle 100 is pressed down to a certain distance, the lock nut 150 needs to be removed, and the arrangement of the hollow hole 313 expands the available space for removing the lock nut 150.

Preferably, as shown in fig. 2, an adjusting device is further disposed on the housing 200, and the adjusting device includes a hydraulic ram 500 disposed annularly. The hydraulic ram 500 is disposed at a position corresponding to the position of the apparatus outer shaft 120 to support the apparatus outer shaft 120. Moreover, when the main shaft 100 stands on the base 200, the outer ring of the bearing and the inner wall of the outer shaft 120 of the equipment and the inner ring of the bearing and the outer wall of the fork shaft 110 are uniformly contacted through the extension height of each hydraulic ram 500 and the levelness of the outer shaft 120 of the equipment, so that the outer shaft 120 of the equipment and the fork shaft 110 are coaxially arranged in the process that the second bearing 131 can smoothly move up and down no matter in the process of installing or disassembling the main shaft 100.

As shown in fig. 2, in particular, the manipulator bearing assembly and disassembly device further comprises a flushing station 600, wherein the flushing station 600 comprises an oil tank 610, a flushing pump 620 and a flushing pipe 630, and the oil tank 610, the flushing pump 620 and the flushing pipe 630 are communicated in sequence. When the manipulator bearing is disassembled and assembled, the free end of the flushing pipe 630 can extend into the space between the fork shaft 110 and the equipment outer shaft 120, and dust in the bearing is cleaned. Improve bearing dismouting quality. Of course, the base 200 can also be made into an oil storage structure for collecting the washed waste oil, and the waste oil is communicated with the oil tank 610, and the filtered waste oil flows back into the oil tank 610, thereby realizing the recycling of the washing oil.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The manipulator bearing dismounting device is characterized by comprising a base (200), a driving mechanism and a press-fitting tool (300) arranged above the base (200); the press-fitting tool (300) comprises a press-fitting part (310) extending towards the direction of the base (200) and used for abutting against the second bearing (131); the driving mechanism is used for driving the pressing piece (310) to move up and down.

2. The manipulator bearing dismounting device according to claim 1, wherein the driving mechanism is a hydraulic cylinder (400) disposed on the press-fitting tool (300), the press-fitting tool (300) includes a pull rod (410), one end of the pull rod (410) is connected to the base (200), and the other end of the pull rod (410) is detachably connected to a piston rod of the hydraulic cylinder (400).

3. The manipulator bearing dismounting device according to claim 1 or 2, wherein the press-fitting tool (300) further comprises a press plate (320); the pressing piece (310) is annular and is arranged on the lower end face of the pressing plate (320).

4. The manipulator bearing assembly and disassembly device according to claim 1, wherein the press-fitting member (310) comprises a press-fitting portion (311) and a connecting portion (312) engaged with the press-fitting portion (311), and the connecting portion (312) comprises a connecting portion body, a hollow hole (313) allowing the lock nut (150) to pass therethrough, and an escape groove (314) for escaping the lock nut (150) when the press-fitting member moves up and down.

5. A manipulator bearing assembly and disassembly device according to claim 1, wherein an adjustment device is further disposed on the housing (200), the adjustment device comprises a plurality of hydraulic rams (500), and the hydraulic rams (500) are annularly disposed.

6. The manipulator bearing dismounting device according to claim 1, further comprising a flushing station (600), wherein the flushing station (600) comprises an oil tank (610), a flushing pump (620) and a flushing pipe (630), the oil tank (610), the flushing pump (620) and the flushing pipe (630) are sequentially communicated, and the flushing pipe (630) can extend into a space between the outer shaft (120) of the device and the fork shaft (110).