Bearing disassembling tool

Abstract

The utility model relates to the field of bearing disassembling, in particular to a bearing disassembling tool which comprises a tool body used for disassembling a special bearing, the tool body comprises a supporting seat, a two-piece type hoop sleeve is movably arranged in the supporting seat, one end of a hoop is connected with a pull-out screw rod, and one end of the supporting seat is provided with a hydraulic jack. According to the utility model, the two-piece type clamp sleeve is buckled on the special bearing, so that the boss part on the inner wall of the two-piece type clamp sleeve is tightly matched with the groove on the special bearing, then the supporting seat is assembled on the bearing outer sleeve, and then the two locking nuts are screwed at the tail end of the pull-out screw rod to tightly press the hydraulic jack; the bearing disassembling tool body has the advantages of being simple in structure, safe, reliable, convenient to install and use and low in price, and the maintenance cost of the bearing is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bearing disassembly, specifically to a bearing disassembly tool. BACKGROUND

[0002] With the sharp expansion of the production scale of chemical fibers in China, the number of imported special chemical fiber equipment in China is also rapidly increasing. The special chemical fiber equipment generally uses special non-standard parts, and its maintenance method is different from that of general parts in China.

[0003] The special bearing mentioned above is used in large quantities in the industry, and has a relatively high failure rate. Moreover, there is no feasible maintenance solution and available maintenance tool in the industry for a long time. Therefore, the bearing that fails can only be returned to the equipment manufacturer for repair, which is difficult to repair and leads to high repair costs. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims to provide a bearing disassembly tool to solve the technical problems of high failure rate of existing special bearings, lack of professional maintenance and disassembly tools, and high repair costs due to difficult maintenance.

[0005] To achieve the above purpose, the utility model provides a bearing disassembly tool, which comprises a tool body for disassembling a special bearing. The tool body comprises a support seat, and a two-piece clamp sleeve for disassembling the special bearing is movably arranged inside the support seat. One end of the clamp sleeve is fixedly connected with a pulling screw.

[0006] One end of the support seat is fixedly assembled with a hydraulic jack for driving the pulling screw to move. A locking nut located at the output end of the hydraulic jack is further sleeved on the pulling screw.

[0007] Preferably, one end of the two-piece clamp sleeve is provided with a boss matched with a clamping groove at one end of the special bearing.

[0008] Preferably, one end of the support seat is provided with a bayonet matched with a skirt at one end of the special bearing.

[0009] Preferably, a clamping sleeve is further arranged between the two-piece clamp sleeve and the support seat, and the clamping sleeve is slidably connected with the support seat.

[0010] Preferably, the two-piece clamp sleeve is further provided with an extension edge, and one end of the clamping sleeve is in contact with the extension edge.

[0011] Preferably, one end of the pulling screw is fixedly provided with a limiting block connected with the two-piece clamp sleeve.

[0012] Preferably, an external thread is formed on the pulling screw by threading, and the external thread is matched with the locking nut.

[0013] Preferably, the end of the pulling screw is also turned into a corner end.

[0014] Preferably, the hydraulic jack is provided with a liquid injection port on one side.

[0015] Preferably, the two-piece clamp is made of elastic material.

[0016] The beneficial effects of the present application are:

[0017] The two-piece clamp sleeve is buckled on the special bearing, so that the boss part on the inner wall of the two-piece clamp sleeve is tightly matched with the groove on the surface of the special bearing shaft, the pulling screw is also buckled in, the support seat is assembled on the bearing sleeve, then two locking nuts are screwed on the end of the pulling screw to press the hydraulic jack, and finally the pressing handle of the hydraulic jack can be easily disassembled, the bearing disassembly tool body has the characteristics of simple structure, safety and reliability, convenient installation and low price, solves the long-standing problem in the industry, greatly reduces the maintenance cost of the bearing, and the tool can be used in the disassembly of various similar structure bearing parts, the method is simple and novel, and the efficiency of equipment disassembly and maintenance can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only the present application, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0019] Figure 1 It is a schematic diagram of the special bearing and tool body of the present application;

[0020] Figure 2 It is a half cutaway schematic diagram of the special bearing of the present application;

[0021] Figure 3 It is a schematic diagram of the Figure 3 enlarged view of A of the present application;

[0022] Figure 4 It is a half cutaway structural schematic diagram of the tool body of the present application;

[0023] Figure 5 It is a two-piece clamp sleeve structural schematic diagram of the present application;

[0024] Figure 6 It is a working process schematic diagram of the present application.

[0025] The reference signs in the drawings are:

[0026] 1, special bearing; 11, mandrel; 111, groove; 12, bearing outer sleeve; 121, skirt; 13, front end bearing; 14, rear end bearing; 15, connecting sleeve; 16, long shaft; 2, tool body; 21, support seat; 211, bayonet; 22, tight sleeve; 23, two-piece clamp sleeve; 231, boss; 232, extension edge; 24, pull-out screw; 241, limit block; 242, external thread; 243, angular end; 25, hydraulic jack; 251, liquid injection port; 26, locking nut. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with specific examples.

[0028] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] In order to further understand the present application, the present application will be described in detail below with reference to the drawings.

[0030] In combination Figures 1-6 , the present application provides a kind of bearing disassembly tool, including the tool body 2 for disassembling special bearing 1, tool body 2 includes support seat 21, support seat 21 inside movablely provided with two-piece clamp sleeve 23 for disassembling special bearing 1, clamp one end is fixedly connected with pull-out screw 24;

[0031] One end of support seat 21 is fixedly equipped with hydraulic jack 25 for driving pull-out screw 24 to move, pull-out screw 24 is also sleeved with locking nut 26 located at the output end of hydraulic jack 25;

[0032] The one end of the two-piece clamp sleeve 23 is provided with a boss 231 matched with the one end slot of the special bearing 1;

[0033] Special bearing 1 (reference Figure 2) is composed of six parts of the mandrel 11, the bearing sleeve 12, the front end bearing 13, the rear end bearing 14, the connecting sleeve 15 and the long shaft 16, the mandrel 11 is located inside the bearing sleeve 12, the bearing sleeve 12 is provided with the connecting sleeve 15 at one end, the long shaft 16 is located inside the connecting sleeve 15, the front end bearing 13 and the rear end bearing 14 are further provided between the mandrel 11 and the bearing sleeve 12 and located at both ends of the mandrel 11, the difficulty of the special bearing 1 maintenance is how to disassemble without damage, and the disassembly is difficult because the mandrel 11 and the long shaft 16 of the special bearing 1 are assembled together through the intermediate connecting sleeve 15 interference fit, and the disassembly of this connection often needs to exert a large external force to do so;

[0034] According to the mechanical principle analysis, the rear end bearing 14 and the mandrel 11 are respectively installed on the bearing sleeve 12 from both ends of the bearing sleeve 12, through the analysis and research on the appearance structure of the special bearing 1, the most feasible scheme for disassembling the special bearing 1 is to use the recess 111 (as shown in Figure 3 ) on the surface of one end of the mandrel 11 as the force point;

[0035] In the embodiment, the two-piece clamp sleeve 23 is composed of two single-piece sleeves and needs to be used in combination during work, and when used, first, the two-piece clamp sleeve 23 is buckled on the special bearing 1, so that the convex boss 231 on the inner wall of the two-piece clamp sleeve 23 is closely matched with the recess 111 on the surface of the mandrel 11 of the special bearing 1 and the pull-out screw rod 24 is also buckled, then the support seat 21 is assembled on the bearing sleeve 12, the hydraulic jack 25 is installed on the support seat 21 through the pull-out screw rod 24 passing through the center of the hydraulic jack 25, then two locking nuts 26 are screwed on the end of the pull-out screw rod 24 to compress the hydraulic jack 25, finally, the hydraulic oil pipeline of the hydraulic jack 25 is connected, and the pressurizing handle of the hydraulic jack 25 is pressed to easily disassemble the special bearing 1;

[0036] The bearing disassembly tool body 2 has the characteristics of simple structure, safety and reliability, convenient installation and use, and low price, solves the long-term problem in the industry, greatly reduces the maintenance cost of the bearing, and can be used in the disassembly of various similar structure bearing parts, the method is simple and novel, and the efficiency of equipment disassembly and maintenance can be greatly improved.

[0037] In combination with Figure 4 , the support seat 21 is provided with a bayonet 211 at one end for contacting the skirt 121 at one end of the special bearing 1;

[0038] In the embodiment, the skirt 121 at one end of the special bearing 1 is in abutment with the bayonet 211 at one end of the support seat 21, so that the tool body 2 can be fixed at one end of the special bearing 1.

[0039] In combination with Figure 4The two-piece clamp sleeve 23 is further provided with a clamping sleeve 22 and the clamping sleeve 22 is in sliding connection with the support base 21;

[0040] In the embodiment, the clamping sleeve 22 can strengthen the fastening degree of the two-piece clamp sleeve 23 and the surface groove 111 of the special bearing 1 mandrel 11, so that when the two-piece clamp sleeve 23 is pulled out by the pull-out screw 24, the pulling force applied to the two-piece clamp sleeve 23 can be better.

[0041] In combination Figure 5 One end of the two-piece clamp sleeve 23 is further provided with an extension edge 232, and one end of the clamping sleeve 22 is in contact with the extension edge 232;

[0042] In the embodiment, the extension edge 232 at one end of the two-piece clamp sleeve 23 can limit the clamping sleeve 22, avoiding the sliding of the clamping sleeve 22 and the relative displacement of the clamping sleeve 22, so that the two-piece clamp sleeve 23 cannot be well clamped with the surface groove 111 of the mandrel 11.

[0043] In combination Figure 4 One end of the pull-out screw 24 is further provided with a limiting block 241, and the limiting block 241 is connected with the two-piece clamp sleeve 23;

[0044] In the embodiment, during the splicing process of the two-piece clamp sleeve 23, the limiting block 241 at one end of the pull-out screw 24 is also buckled in the two-piece clamp sleeve 23, and then the clamping sleeve 22 is sleeved outside the two-piece clamp sleeve 23. The limiting block 241 at one end of the pull-out screw 24 can effectively drive the two-piece clamp sleeve 23 and the clamping sleeve 22 to move.

[0045] In combination Figure 4 The pull-out screw 24 is externally threaded, and the external thread 242 is matched with the locking nut 26;

[0046] In the embodiment, the locking nut 26 can not only fix the position of the pull-out screw 24, but also adjust the initial position of the pull-out screw 24 and the two-piece clamp sleeve 23 in the support base 21 by screwing the locking nut 26, so that the two-piece clamp sleeve 23 can better fit the grooves 111 at different positions on different types of special bearings 1.

[0047] In combination Figure 4 One end of the pull-out screw 24 is further turned into an angular end 243;

[0048] In the embodiment, the angular end 243 at one end of the pull-out screw 24 can be combined with some existing pneumatic wrenches or electric wrenches, so that the initial position of the pull-out screw 24 and the two-piece clamp sleeve 23 can be better.

[0049] In combinationFigure 4 The hydraulic jack 25 is provided with a liquid injection port 251 on one side;

[0050] The hydraulic oil required can be injected into the oil channel of the hydraulic jack 25 through the liquid injection port 251, and the liquid injection port 251 can be equipped with a pressing handle to inject pressure into the hydraulic jack 25, so that the output end of the hydraulic jack 25 can normally extend.

[0051] In combination Figure 4 The two-piece clamp sleeve 23 is made of elastic material;

[0052] In the embodiment, the two-piece clamp sleeve 23 is made of elastic material, which is used to cooperate with the clamping of the clamping sleeve 22 on the groove 111 of the mandrel 11, and to avoid scratching the surface of the mandrel 11 when the two-piece clamp sleeve 23 is in contact with the mandrel 11.

[0053] It should be understood by those of ordinary skill in the art that the above discussion of any embodiment is only exemplary and is not intended to suggest that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0054] The present application is intended to cover all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations or equivalents that fall within the spirit and scope of the application are intended to be included within the scope of the application.

Claims

1. A bearing disassembly tool comprising a tool body for disassembling a dedicated bearing, characterized in that, The tool body comprises a supporting seat, and a two-piece clamp sleeve for disassembling the special bearing is movably arranged inside the supporting seat. A hydraulic jack for driving the pull-out screw to move is fixedly assembled at one end of the supporting seat, and a locking nut located at the output end of the hydraulic jack is further sleeved on the pull-out screw.

2. A bearing disassembly tool according to claim 1, wherein One end of the two-piece clamp is provided with a boss matched with the clamping groove at one end of the special bearing.

3. A bearing disassembly tool according to claim 1, wherein One end of the supporting seat is provided with a clamping hole for contacting the skirt at one end of the special bearing.

4. A bearing disassembly tool according to claim 3, wherein, A tight clamp sleeve is further arranged between the two-piece clamp sleeve and the supporting seat, and the tight clamp sleeve is slidably connected with the supporting seat.

5. A bearing disassembly tool according to claim 4, wherein, One end of the two-piece clamp sleeve is further provided with an extended edge, and one end of the tight clamp sleeve is in contact with the extended edge.

6. A bearing disassembly tool according to claim 5, wherein, One end of the pull-out screw is fixedly provided with a limiting block connected with the two-piece clamp sleeve.

7. A bearing disassembly tool according to claim 6, wherein, An external thread is formed on the pull-out screw by threading, and the external thread is matched with the locking nut.

8. A bearing disassembly tool according to claim 7, wherein, One end of the pull-out screw is further turned to form an angular end.

9. The bearing disassembly tool of claim 1, wherein, A liquid injection port is fixedly arranged at one side of the hydraulic jack.

10. The bearing disassembly tool of claim 1, wherein, The two-piece clamp sleeve is made of elastic material.

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