Speed reducer bearing dismounting tool with high safety

Abstract

The utility model provides a speed reducer bearing dismounting tool with high safety, and belongs to the technical field of dismounting tools. Comprising a frame and a clamping jaw rotationally connected to the frame, a threaded rod penetrates through the top of the frame in a threaded mode, the protection assembly comprises a fixing piece fixed to the corner of the clamping jaw, the shape of the fixing piece is matched with the shape of the clamping jaw, and an inner groove is formed in the inner wall of the fixing piece. The fixing pieces are arranged at the corners of the clamping jaws, the shapes of the fixing pieces are matched with the shapes of the corners of the clamping jaws, the fixing pieces can increase the structural strength of the clamping jaws, the safety of the fixing pieces in the using process is improved, and the fixing pieces are prevented from being broken in the using process; and the pull rope can play a certain binding role, the pull rope can bind the fractured part, the fractured clamping jaw is prevented from impacting a user, protection on personnel is achieved, and the safety of the clamping jaw in the using process is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dismounting tool technical field, especially in a kind of high security speed reducer bearing dismounting tool. BACKGROUND

[0002] Speed reducer is a kind of mechanical device, for reducing input rotation speed and increasing output torque equipment. It is converted into the lower rotation speed of motor or other power source by built-in gear system, wherein speed reducer is opened when being dismounted and maintained, and then the bearing of speed reducer is dismounted by bearing dismounting tool (three-jaw puller), wherein bearing dismounting tool is mainly composed of frame, three clamps and screw rod, in use, three clamps are clamped on bearing, screw rod is abutted on rotating shaft, and bearing is dismounted by rotating screw rod.

[0003] During the dismounting of bearing, the force during dismounting is mainly borne by clamp, stress concentration is easily caused at the corner position of clamp, so that clamp is prone to break at corner position in use, wherein when clamp breaks in use, the part of breakage has impact force, so as to cause user to be injured, and bearing dismounting tool needs further optimization in safety, therefore, the present application provides a kind of high security speed reducer bearing dismounting tool to meet the needs. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a kind of high security speed reducer bearing dismounting tool to solve the problem that the part of breakage has impact force when clamp breaks in use, so as to cause user to be injured.

[0005] To solve the above technical problem, the utility model provides the following technical scheme:

[0006] A kind of high security speed reducer bearing dismounting tool, including frame and the clamp of rotation connection on frame top, frame top is screwed through screw rod, further including:

[0007] Protection assembly, the fixed part of protection assembly is fixed at the corner of clamp, the shape of fixed part is adapted to the shape of clamp, inner wall of fixed part is provided with inner groove, and pull rope is arranged in inner groove.

[0008] Preferably, the side surface of the fixed part is fixed with a side plate, and the side plate is fixed to the side surface of the clamp.

[0009] Preferably, the bottom edge of the side plate is provided with a guide surface one.

[0010] Preferably, the inclined surface of the side plate near the screw rod side is provided with a guide surface four.

[0011] Preferably, the inner groove of the fixing member is provided with a limiting sleeve one and a limiting sleeve two, the limiting sleeve two is above the limiting sleeve one, the limiting sleeve one and the limiting sleeve two are movably sleeved on the surface of the pull rope, the two ends of the pull rope are fixed with limiting blocks, and the limiting blocks are movably connected in the inner groove.

[0012] Preferably, the inner groove of the fixing member is provided with a limiting sleeve one and a limiting sleeve two, the limiting sleeve two is above the limiting sleeve one, the limiting sleeve one and the limiting sleeve two are movably sleeved on the surface of the pull rope, the two ends of the pull rope are fixed with limiting blocks, and the limiting blocks are movably connected in the inner groove.

[0013] Preferably, the top of the fixing member is provided with a guide surface three.

[0014] Preferably, the end of the fixing member is provided with a guide surface two.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] In the above scheme, the fixing member is arranged at the corner of the claw, the shape of the fixing member is matched with the shape of the corner of the claw, the fixing member can increase the structural strength of the claw, improve the safety of the fixing member in use, and avoid the breakage of the fixing member in use.

[0017] When the claw is broken in use, the pull rope can play a certain binding role, the pull rope can bind the broken part, avoid the impact of the broken claw on the user, realize the protection of the personnel, and further improve the safety of the claw in use.

[0018] When the claw bound by the pull rope is broken, the energy-absorbing ring in the inner groove can absorb the kinetic energy of the claw bound by the pull rope, further absorb the impact force of the broken part, play a buffering role, and improve the safety of the tool. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated herein and forming part of the specification illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and to enable one skilled in the pertinent art to make and use the present disclosure.

[0020] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a fixing member sectional view of the utility model;

[0022] Figure 3 It is a fixing member sectional view of the utility model; Figure 2 It is a structure enlarged view of A in the utility model;

[0023] Figure 4 It is a structure enlarged view of A in the utility model; Figure 2An enlarged view of the structure at B;

[0024] Figure 5 A schematic view of the three-dimensional structure of the protection assembly of the utility model.

[0025] [Reference signs]

[0026] 1, frame; 2, claw; 3, screw rod; 4, protection assembly; 5, fixing piece; 6, side plate; 7, guide surface one; 8, inner groove; 9, limiting sleeve one; 10, limiting sleeve two; 11, pull rope; 12, limiting block; 13, energy-absorbing ring; 14, guide surface two; 15, guide surface three; 16, guide surface four.

[0027] As shown in the drawings, in order to clearly realize the structure of the embodiments of the utility model, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the utility model in the specific structure, device and environment, and the ordinary skilled in the art can adjust or modify these devices and environment according to specific needs, and the adjustment or modification still includes in the scope of the appended claims. DETAILED DESCRIPTION

[0028] The utility model provides a high security speed reducer bearing dismounting tool in the following detailed description of combining with the drawings and specific embodiment. At the same time, it is explained here that in order to make the embodiment more detailed, the following embodiment is the best, preferred embodiment, and the skilled in the art can also use other alternative ways to implement for some known technology, and the part of the drawings is only for more specific description of the embodiment, and is not intended to specifically limit the utility model.

[0029] As Figures 1-5 The utility model discloses an embodiment provides a high security speed reducer bearing dismounting tool, including frame 1 and the claw 2 of rotation connection on frame 1, the claw 2 is provided with three, three claw 2 about the center circle axis array of screw rod 3 setting, the top of frame 1 is screwed through screw rod 3, and the top of screw rod 3 is provided with hexagonal block, which facilitates the wrench rotation side plate 6, improves the convenience in use, still includes:

[0030] Protection assembly 4, protection assembly 4 includes the fixing piece 5 of fixed in the claw 2 corner, and the shape of fixing piece 5 is adapted to the shape of claw 2, and the inner wall of fixing piece 5 is provided with inner groove 8, and pull rope 11 is arranged in inner groove 8, and pull rope 11 is steel wire rope.

[0031] As Figure 5 Indicated in the embodiment, the side of fixing piece 5 is fixed with side plate 6, and side plate 6 is fixed on the side of claw 2, and side plate 6 can further improve the structural strength of fixing piece 5 and claw 2 at the corner, to further avoid the fracture of claw 2 in use.

[0032] As Figure 5 shown in the embodiment, the bottom edge of the side plate 6 is provided with a guide surface one 7. The guide surface one 7 can guide the pawl 2, avoiding affecting the guide surface one 7 from being sleeved on the bearing.

[0033] As Figure 5 shown in the embodiment, the inclined surface of the side plate 6 near the screw rod 3 is provided with a guide surface four 16. The guide surface four 16 can prevent oil stains from accumulating on the top of the side plate 6, reducing the time needed for cleaning later.

[0034] As Figures 2-4 shown in the embodiment, the inner wall of the inner groove 8 of the fixing part 5 is fixed with a limiting sleeve one 9 and a limiting sleeve two 10. The limiting sleeve two 10 is located above the limiting sleeve one 9. Both the limiting sleeve one 9 and the limiting sleeve two 10 are movably sleeved on the surface of the pull rope 11. Both ends of the pull rope 11 are fixed with a limiting block 12, which is movably connected in the inner groove 8. Through the limiting sleeve one 9, the limiting sleeve two 10 and the limiting block 12, the pull rope 11 is limited.

[0035] As Figures 2-4 shown in the embodiment, the inner wall of the inner groove 8 is fixed with a plurality of energy absorption rings 13. The plurality of energy absorption rings 13 are located between the top of the limiting sleeve two 10 and the upper limiting block 12. The plurality of energy absorption rings 13 are located between the lower limiting block 12 and the limiting sleeve one 9. The energy absorption rings 13 can absorb the energy when the pawl 2 breaks, avoiding the pull rope 11 from breaking, and further improving the safety of use.

[0036] As Figure 5 shown in the embodiment, the top of the fixing part 5 is provided with a guide surface three 15. Through the setting of the guide surface three 15, the guide surface three 15 can prevent oil stains and the like from accumulating on the top of the fixing part 5, reducing the time needed for cleaning later.

[0037] As Figure 5 shown in the embodiment, the end of the fixing part 5 is provided with a guide surface two 14. Through the setting of the guide surface two 14, the guide surface two 14 can guide the pawl 2, avoiding affecting the pawl 2 from being sleeved on the bearing.

[0038] Working principle: when the bearing of speed reducer is disassembled, the claw 2 is clamped on the bearing, the screw rod 3 is abutted on the rotating shaft, then the screw rod 3 is rotated, the claw 2 is gradually disassembled from the speed reducer by the action force of the screw rod 3, if the claw 2 is broken in the process, the broken part can be bound by the pull rope 11, in the binding process, the pull rope 11 drives the limiting block 12 to move, the limiting block 12 is abutted on the energy absorption ring 13, the energy absorption ring 13 is broken, the kinetic energy generated by the breaking is absorbed by the breaking of the energy absorption ring 13, the impact force of the broken part is reduced, and the danger is further reduced.

[0039] The utility model covers any alternative, modification, equivalent method and scheme which are made in the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the above preferred embodiment of the utility model, and the utility model can be completely understood without the description of these details for the person skilled in the art.

[0040] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the principle of the utility model, a plurality of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model.

Claims

1. A high-safety speed reducer bearing dismounting tool, comprising a frame (1) and a jaw (2) rotatably connected to the frame (1), a threaded rod (3) being threaded through the top of the frame (1), characterized in that, Also include: The protection assembly (4) includes a fixed part (5) fixed at the corner of the claw (2), the shape of the fixed part (5) is matched with the shape of the claw (2), the inner wall of the fixed part (5) is provided with an inner groove (8), and the inner groove (8) is provided with a pull rope (11).

2. The high-safety speed reducer bearing dismounting tool according to claim 1, characterized by The side of the fixed part (5) is fixed with a side plate (6), and the side plate (6) is fixed on the side of the claw (2).

3. The high-safety speed reducer bearing dismounting tool according to claim 2, characterized by The bottom edge of the side plate (6) is provided with a guide surface one (7).

4. The high-safety speed reducer bearing dismounting tool according to claim 2, characterized by The inclined surface of the side plate (6) near the screw rod (3) is provided with a guide surface four (16).

5. The high-safety speed reducer bearing dismounting tool according to claim 1, characterized by The inner groove (8) of the fixed part (5) is fixed with a limiting sleeve one (9) and a limiting sleeve two (10), the limiting sleeve two (10) is located above the limiting sleeve one (9), the limiting sleeve one (9) and the limiting sleeve two (10) are movably sleeved on the surface of the pull rope (11), both ends of the pull rope (11) are fixed with a limiting block (12), and the limiting block (12) is movably connected in the inner groove (8).

6. The high-safety speed reducer bearing dismounting tool according to claim 5, characterized by The inner wall of the inner groove (8) is fixed with a plurality of energy absorbing rings (13), the plurality of energy absorbing rings (13) are located between the top of the limiting sleeve two (10) and the upper limiting block (12), and the plurality of energy absorbing rings (13) are located between the lower limiting block (12) and the limiting sleeve one (9).

7. The safety high speed reducer bearing puller according to claim 1, wherein The top of the fixed part (5) is provided with a guide surface three (15).

8. The safety high speed reducer bearing puller according to claim 1, wherein The end of the fixed part (5) is provided with a guide surface two (14).

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