Tile turning auxiliary device for overhauling radial bearing

Abstract

The utility model discloses a tile turning auxiliary device for overhauling a radial bearing, which comprises a fan-shaped lower replacement tile, a circular tile turning hole arranged on the surface of the top of the lower replacement tile, a pressing block groove arranged on the outer wall of the lower replacement tile close to the edge, a fixing component arranged in the pressing block groove, and a circular first through hole arranged in the middle of the bottom end of the pressing block groove. And four second through holes are uniformly distributed on the periphery of the first through hole. The auxiliary device solves the problem that in the prior art, due to the fact that the lifting height of the rotor cannot be controlled, air seal teeth are damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of radial sliding bearing repair devices, and in particular relates to a tile turning auxiliary device for repairing radial bearings. Background Art

[0002] In large-scale chemical units, compressor units are key equipment in chemical processes. Compressor units are in long-term operation during continuous chemical production and generally do not have backup equipment. Therefore, very high requirements are placed on the maintenance and overhaul of compressor units.

[0003] The maintenance of radial sliding bearings in compressor units is crucial to the continuous and stable operation of chemical process equipment. Generally, the radial sliding bearings of compressor units are large in size and heavy in weight, and have high maintenance requirements. When turning over the bearings for maintenance, it is necessary to ensure that the various control indicators of the compressor unit are measured accurately and in good condition.

[0004] There is no auxiliary device for flipping the lower bearing in the prior art. When flipping the lower bearing of the radial bearing for inspection, the rotor needs to be manually lifted a certain amount, and then the lower bearing needs to be flipped out by knocking or pulling. Therefore, the following problems exist: the lifting height of the rotor cannot be controlled. If the rotor is lifted too high, the sealing teeth will be damaged. If the rotor is lifted too low, the lower bearing cannot be flipped out. The clearance between the lower bearing and the shell is small, and the resistance is large when flipping. At this time, the middle surface of the lower bearing needs to be knocked hard to rotate the lower bearing. The knocking will cause local concave-convex deformation of the middle surface, which may easily cause the gap on the top of the bearing to change. When flipping the lower bearing, it is difficult to fix it. The lower bearing will often flip out from one side and slide down from the other side. It is easy to cut fingers when operating with bare hands, which poses a great safety risk. When flipping the lower bearing, it is easy to squeeze the rotor to one side in the left and right directions, damaging the gas sealing teeth. Utility Model Content

[0005] The utility model aims to provide a tile turning auxiliary device for inspecting and repairing radial bearings, which solves the problem in the prior art that the air seal teeth are damaged due to the inability to control the lifting height of the rotor.

[0006] The technical solution adopted by the utility model is a tile turning auxiliary device for inspecting and repairing radial bearings, comprising a fan-shaped replacement lower tile, a circular tile turning hole is provided on the top surface of the replacement lower tile, a pressing block groove is provided near the edge of the outer wall of the replacement lower tile, a fixing component is arranged in the pressing block groove, a circular first through hole is provided in the middle of the bottom end of the pressing block groove, and four second through holes are evenly distributed on the periphery of the first through hole.

[0007] The utility model is also characterized in that:

[0008] The fixing assembly includes a rectangular pressing block fixed inside the pressing block groove, a first circular hole is opened at the center of the top of the pressing block, the bottom of the first circular hole is connected with a second circular hole, the aperture of the second circular hole is larger than the first circular hole, four threaded holes are also formed on the top surface of the pressing block, the threaded holes are connected with the second through hole, a fastening bolt is threadedly connected in the third through hole, a spring is placed in the second circular hole, and a two-way disassembly bolt is connected at the bottom of the spring;

[0009] One end of the two-way disassembly bolt is an M5 bolt, and the other end is an M8 bolt;

[0010] The top of the M8 bolt end of the two-way disassembly bolt is machined with a spring installation groove;

[0011] The outer surface of the replacement lower tile is covered with a polytetrafluoroethylene material layer, a nylon material layer or a babbitt alloy surface layer.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model is a tile turning auxiliary device for inspecting and repairing radial bearings. When turning tiles, there is no need to lift the rotor, and the tiles can be directly rotated and replaced, and the center position of the rotor remains unchanged; there is no need to forcefully knock on the middle surface of the lower tile, and the lower tile can be rotated by rotating and replacing the lower tile through the tile turning hole, without worrying about the change of the tile top gap caused by the local concave-convex deformation of the middle surface;

[0014] 2. The auxiliary device of the utility model is well fixed when the lower shoe is turned over, and will not slide from the other side, avoiding shearing of fingers, and the operation is safe and reliable; when the lower shoe is turned over, the rotor will not be squeezed to one side, avoiding damage to the gas seal teeth;

[0015] 3. The fixed components in the auxiliary device of the utility model can be directly installed and used after being assembled once, without repeated assembly, which reduces labor costs. The outer surface of the replacement lower tile of the utility model is covered with a polytetrafluoroethylene material layer, a nylon material layer or a babbitt alloy surface layer, which is cheap and easy to process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model of a tile turning auxiliary device for repairing a radial bearing;

[0017] Figure 2 It is a top view of the auxiliary device of the utility model;

[0018] Figure 3 It is a top view of replacing the lower tile in the auxiliary device of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the pressing block in the auxiliary device of the utility model;

[0020] Figure 5 It is a cross-sectional view of a pressing block in the auxiliary device of the utility model;

[0021] Figure 6 It is a structural schematic diagram of a two-way disassembly and assembly bolt in the auxiliary device of the utility model.

[0022] In the figure, 1. replace the lower tile, 2. flip tile hole, 3. pressure block groove, 4. fixing component, 401. pressure block, 402. first circular hole, 403. second circular hole, 404. threaded hole, 405. bolt, 406. spring, 407. two-way disassembly bolt, 5. first through hole, 6. second through hole, 7. spring mounting groove. DETAILED DESCRIPTION

[0023] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0024] Example 1

[0025] like Figure 1 , Figure 2 As shown, the auxiliary device for turning over the radial bearing for inspecting and repairing the radial bearing includes a fan-shaped replacement lower bearing 1. The outer dimensions of the replacement lower bearing 1 are processed according to the outer dimensions of the original lower bearing to ensure that the center of the rotor remains unchanged after turning over. The top surface of the replacement lower bearing 1 is provided with a circular turning hole 2. The number and aperture of the turning holes 2 can be processed according to the actual situation on site, so as to facilitate the assembly of the turning tool. A pressing block groove 3 is provided on the outer wall of the replacement lower bearing 1 near the edge. A fixing component 4 is arranged in the pressing block groove 3. The fixing component 4 is integrated and can be directly installed and used after being assembled once. No training is required and no assembly is required every time. The principle is simple and quick to use. Figure 3 As shown, a circular first through hole 5 is opened in the middle of the bottom end of the pressing block groove 3 for placing a two-way disassembly bolt, and four second through holes 6 are evenly distributed on the outer periphery of the first through hole 5 .

[0026] like Figure 4 As shown, the fixing assembly 4 includes a rectangular pressing block 401 fixed inside the pressing block groove 3, as shown in FIG. Figure 5 As shown, a first circular hole 402 is provided at the center of the top of the pressing block 401, and a second circular hole 403 is connected to the bottom of the first circular hole 402. The diameter of the second circular hole 403 is larger than that of the first circular hole 402. Four threaded holes 404 are also provided on the top surface of the pressing block 401. The threaded holes 404 are connected to the second through hole 6. The threaded holes 404 are connected to the fastening bolts 405. The fastening bolts 405 are used to fix the pressing block 401. A spring 406 is placed in the second circular hole 403. Figure 6As shown, the bottom end of the spring 406 is connected to a two-way disassembly bolt 407. The two-way disassembly bolt 407 is subjected to the pressure of the spring 406 and can be tightened and loosened from either end. One end of the two-way disassembly bolt 407 is an M5 bolt, and the other end is an M8 bolt. Use an S6 hexagonal wrench to disassemble from the top of the nut, and use an S4 hexagonal wrench to disassemble from the bottom. A spring mounting groove 7 is machined on the top of the M8 bolt end of the two-way disassembly bolt 407. The pressure block 401 presses the spring 406 and the two-way disassembly bolt 407 into the pressure block groove 3 of the replacement lower tile 1. There is no need to disassemble the pressure block 401 at a later stage, and the installation and removal of the replacement lower tile 1 can be performed only through the two-way disassembly bolt 407.

[0027] The outer surface of the replacement lower tile 1 is covered with a polyfluoro material layer, a nylon material layer or a babbitt alloy surface layer, which is cheap and easy to process.

[0028] The working process of the utility model is as follows:

[0029] When in use, first assemble the replacement lower bearing 1: first install the spring 406 in the groove of the two-way disassembly bolt spring 407; then put the two-way disassembly bolt 407 into the pressure block groove 3, and install the pressure block 401; press the pressure block 401 with the tightening bolt 405. After assembly, place the replacement lower bearing 1 on the lower bearing, use the S6 hexagonal wrench to tighten the two-way disassembly bolt 407, and tighten the replacement lower bearing 1 on the lower bearing; rotate the replacement lower bearing through the turning bearing hole 2, and gradually turn out the lower bearing; after the lower bearing is turned out, the replacement lower part is under the rotor and bears the weight of the rotor. Due to the same external dimensions, the center position of the rotor remains unchanged; use the S4 hexagonal wrench to remove the two-way disassembly bolt 407, so that the lower bearing is separated from the replacement lower bearing 1, and the lower bearing is removed. The reinstallation procedure is the opposite of the removal procedure.

[0030] Example 2

[0031] The present embodiment provides a pad turning auxiliary device for inspecting and repairing radial bearings, including a fan-shaped replacement lower pad 1, a circular pad turning hole 2 is provided on the top surface of the replacement lower pad 1, a pressure block groove 3 is provided on the outer wall of the replacement lower pad 1 near the edge, a fixing component 4 is arranged in the pressure block groove 3, a circular first through hole 5 is provided in the middle of the bottom end of the pressure block groove 3, and four second through holes 6 are evenly distributed on the periphery of the first through hole 5.

[0032] Example 3

[0033] On the basis of Example 2, the fixing component 4 includes a rectangular pressing block 401 fixed inside the pressing block groove 3, a first circular hole 402 is opened at the center position of the top of the pressing block 401, the bottom end of the first circular hole 402 is connected with a second circular hole 403, the aperture of the second circular hole 403 is larger than the first circular hole 402, and four threaded holes 404 are also formed on the top surface of the pressing block 401, the threaded holes 404 are connected with the second through hole 6, the threaded holes 404 are threadedly connected with fastening bolts 405, a spring 406 is placed in the second circular hole 403, and the bottom end of the spring 406 is connected with a two-way disassembly bolt 407.

[0034] One end of the two-way disassembly bolt 407 is an M5 bolt, and the other end is an M8 bolt. The top of the M8 bolt end of the two-way disassembly bolt 407 is processed with a spring installation groove 7.

Claims

1. A bearing turning auxiliary device for inspecting and repairing radial bearings, characterized in that: The invention comprises a fan-shaped replacement lower tile (1), wherein a circular tile-turning hole (2) is provided on the top surface of the replacement lower tile (1), a pressing block groove (3) is provided on the outer wall of the replacement lower tile (1) near the edge, a fixing component (4) is arranged in the pressing block groove (3), a circular first through hole (5) is provided in the middle of the bottom end of the pressing block groove (3), and four second through holes (6) are evenly distributed on the periphery of the first through hole (5).

2. The pad turning auxiliary device for repairing radial bearings according to claim 1 is characterized in that: The fixing assembly (4) comprises a rectangular pressing block (401) fixed inside the pressing block groove (3); a first circular hole (402) is opened at the center position of the top end of the pressing block (401); the bottom end of the first circular hole (402) is connected to a second circular hole (403); the aperture of the second circular hole (403) is larger than that of the first circular hole (402); four threaded holes (404) are also formed on the top surface of the pressing block (401); the threaded holes (404) are connected to the second through hole (6); a fastening bolt (405) is threadedly connected to the threaded hole (404); a spring (406) is placed in the second circular hole (403); the bottom end of the spring (406) is connected to a two-way disassembly bolt (407).

3. The pad turning auxiliary device for repairing radial bearings according to claim 2 is characterized in that: One end of the two-way disassembly bolt (407) is an M5 bolt, and the other end is an M8 bolt.

4. The pad turning auxiliary device for repairing radial bearings according to claim 3 is characterized in that: A spring installation groove (7) is processed on the top of the M8 bolt end of the two-way disassembly bolt (407).

5. The pad turning auxiliary device for repairing radial bearings according to claim 1 is characterized in that: The outer surface of the replacement lower tile (1) is coated with a polytetrafluoroethylene material layer, a nylon material layer or a babbitt alloy surface layer.

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