Reducer bearing gear dismounting tool

Abstract

A speed reducer bearing gear dismounting tool comprises a bottom platform, a vertical beam, a cross beam, a vertical hydraulic jack, a left top plate, a right top plate, a left adjusting supporting seat, a right adjusting supporting seat, a transverse hydraulic jack and a side baffle. The bottom platform is fixedly connected with the finished vertical beams and cross beams; the vertical hydraulic jack is fixedly connected with the cross beam through a crown block U-shaped suspender; the left top plate, the right top plate and the bottom platform are fixedly connected together; the side baffles are fixedly connected with the bottom platform; the transverse hydraulic jack is fixedly connected with the side baffle plate through the U-shaped suspender; and the horizontal hydraulic jack and the vertical hydraulic jack are communicated with the hydraulic pump station through hydraulic rubber pipes. The device has the advantages that on the premise that quality and safety are guaranteed, production cost is reduced, working efficiency is improved, and the speed reducer bearing gear can be rapidly detached.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine machinery, and particularly relates to a gear dismounting tool for a speed reducer of a fully-mechanized mining equipment in a coal mine. BACKGROUND

[0002] As a core component of fully-mechanized mining and fully-mechanized excavation equipment in a coal mine, the speed reducer plays a very important role. It can convert the high-speed torque output by a motor into a lower torque to ensure reliable operation of a transmission system. However, the existing speed reducer is subjected to a large load during use, and various components are prone to wear and aging, especially bearings and gears. After a certain period of operation, the speed reducer needs to be dismounted and replaced to prevent the equipment from operating with defects and causing safety hazards.

[0003] Since the bearings and gears of the speed reducer are in interference fit with the shaft, the bearings and gears are previously dismounted by means of hammering or drawing with a drawing machine. This requires high skills of the operator, and improper operation can easily cause deformation or damage of the bearings. Moreover, it is time-consuming and labor-intensive, and affects the construction period. Therefore, there is an urgent need to provide a bearing and gear dismounting tool for a speed reducer. SUMMARY

[0004] The utility model aims at overcoming the problem of deformation or damage of bearings caused by dismounting the bearings and gears of a speed reducer by means of hammering or drawing with a drawing machine, and provides a bearing and gear dismounting tool for a speed reducer.

[0005] A bearing and gear dismounting tool for a speed reducer comprises a bottom platform, a vertical beam, a horizontal beam, a vertical hydraulic jack, a left side top plate, a right side top plate, a left adjusting support base, a right adjusting support base, a horizontal hydraulic jack, and a side baffle. The bottom platform is fixedly connected with the completed vertical beam and horizontal beam. The vertical hydraulic jack is fixedly connected with the horizontal beam through a U-shaped hoist. The left side top plate and the right side top plate are fixedly connected with the bottom platform. The side baffle is fixedly connected with the bottom platform. The horizontal hydraulic jack is fixedly connected with the side baffle through a U-shaped hoist of a crown block. The horizontal hydraulic jack and the vertical hydraulic jack are communicated with a hydraulic pump station through a hydraulic rubber tube. The left adjusting support base and the right adjusting support base are placed on the bottom platform, and their positions are adjusted according to the height and size of the bearings.

[0006] Before the tool is dismounted, the left adjusting support base and the right adjusting support base are placed on the bottom platform. After the positions are adjusted, the speed reducer shaft group to be dismounted is placed on the adjusting support bases. The vertical hydraulic jack is actuated to extend the position of the movable column, so that the movable column is completely attached to the upper end surface of the shaft. The center of the movable column is ensured to be consistent with the center of the shaft. After the hydraulic pump station is powered on, the lower chamber of the vertical hydraulic jack is slowly supplied with liquid. The bearings to be dismounted are pressed out. The above steps are repeated to dismount the gears to be dismounted.

[0007] The utility model discloses a beneficial effect is: under the premise of guaranteeing quality and safety, reduce production cost, improve work efficiency, realized the quick disassembly of speed reducer bearing gear. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The utility model discloses a tooling schematic drawing.

[0009] Among them: bottom platform 1, vertical roof beam 2, crossbeam 3, vertical hydraulic jack 4, left side roof board 5, right side roof board 6, left adjusting support base 7, right adjusting support base 8, horizontal hydraulic jack 9, side baffle 10. DETAILED DESCRIPTION

[0010] Below according to the drawing Figure 1 Make further analysis to the utility model.

[0011] A kind of speed reducer bearing gear dismounting tool, the tooling composition includes: bottom platform 1, vertical roof beam 2, crossbeam 3, vertical hydraulic jack 4, left side roof board 5, right side roof board 6, left adjusting support base 7, right adjusting support base 8, horizontal hydraulic jack 9 and side baffle 10.Crossbeam 3 is first fixed together with two groups of vertical roof beam 2, then vertical roof beam 2 is fixed together with ground platform 1;The vertical hydraulic jack 4 is fixedly connected together with crossbeam 3 by crown block U-shaped suspender;The left side roof board 5, right side roof board 6 are fixedly connected together with bottom platform 1;The side baffle 10 is fixedly connected together with bottom platform 1;The horizontal hydraulic jack 9 is fixedly connected together with side baffle 10 by crown block U-shaped suspender;The horizontal hydraulic jack 9, vertical hydraulic jack 4 are communicated with hydraulic pump station by hydraulic rubber tube;The left adjusting support base 7, right adjusting support base 8 are placed on bottom platform 1, and position is adjusted according to bearing height and size, and height position is adjusted by shim.

[0012] After the disassembly of speed reducer, according to the size of the gear or bearing of the disassembled shaft group, the position of the left adjusting support base 7 and the right adjusting support base 8 is adjusted, the shaft group is hoisted to the lower side of the crossbeam 3, the lower end surface of the gear or bearing is fixed with the left adjusting support base 7 and the right adjusting support base 8, the shaft end is fixed with the vertical hydraulic jack 4, and the plunger of the vertical hydraulic jack 4 is driven by the hydraulic pump station to press out the gear or bearing to be disassembled.

[0013] After the disassembly of the sprocket, the shaft group is hoisted to the middle of the left side roof board 5 and the right side roof board 6, the lower end surface of the bearing is fixed with the end surface of the left side roof board 5 and the right side roof board 6, the shaft end is fixed with the horizontal hydraulic jack 9, and the plunger of the horizontal hydraulic jack 9 is driven by the hydraulic pump station to press out the bearing to be disassembled.

Claims

1. A reducer bearing gear disassembly tool, characterized by: The tooling structure comprises a bottom platform (1), a vertical beam (2), a horizontal beam (3), a vertical hydraulic jack (4), a left top plate (5), a right top plate (6), a left adjustment support seat (7), a right adjustment support seat (8), a horizontal hydraulic jack (9), and a side baffle (10); the bottom platform (1) is fixedly connected to the completed vertical beam (2) and horizontal beam (3); the vertical hydraulic jack (4) is fixedly connected to the horizontal beam (3) through the overhead crane U-shaped boom; the left top plate (5) and the right top plate are fixedly connected to the horizontal beam (3); (6) is fixedly connected to the bottom platform (1); the side baffle (10) is fixedly connected to the bottom platform (1); the horizontal hydraulic jack (9) is fixedly connected to the side baffle (10) through the overhead crane U-shaped boom; the horizontal hydraulic jack (9) and the vertical hydraulic jack are connected to the hydraulic pump station through a hydraulic hose; the left adjustment support seat (7) and the right adjustment support seat (8) are placed on the bottom platform (1), and the position is adjusted according to the bearing height and size, and the height position is adjusted through the pad.

2. The reducer bearing gear disassembly tool according to claim 1, characterized in that: After the speed reducer is disassembled, the positions of the left adjustment support seat (7) and the right adjustment support seat (8) are adjusted according to the size of the gear or bearing of the disassembled shaft group, and the shaft group is hoisted to the bottom of the crossbeam (3). The lower end surface of the gear or bearing is fixed to the left adjustment support seat (7) and the right adjustment support seat (8), and the shaft end is fixed to the vertical hydraulic jack (4). The hydraulic pump station drives the plunger of the vertical hydraulic jack (4) to press out the gear or bearing to be disassembled.

3. The reducer bearing gear disassembly tool according to claim 1, characterized in that: After the sprocket is disassembled, the shaft assembly is hoisted to the middle of the left top plate (5) and the right top plate (6), so that the lower end surface of the bearing is fixed to the end surface of the left top plate (5) and the right top plate (6), and the shaft end is fixed to the horizontal hydraulic jack (9). The hydraulic pump station drives the plunger of the horizontal hydraulic jack (9) to press out the bearing to be disassembled.

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