A special tool for disassembling a bearing

Abstract

The utility model relates to bearing equipment technical field provides a bearing dismantles special frock, including base, the base's bottom circumference is equipped with a plurality of clamping jaw, the base is equipped with the vertical up and down motion's top pressure arm, the bottom detachable connection of top pressure arm has the top pressure head, and this top pressure head is located the space center of the clamping jaw surrounded in the circumference setting just above. The utility model overcomes the deficiency of prior art, and the design is reasonable, and the structure is compact, and the pressing extrusion part is away from the one end of support rod, and the inner ring of bearing is extruded downward by top pressure head at this moment, and bearing inner ring is extruded out of bearing, and the dismantling is labor saving, fast and convenient. Rotating the screw rod makes the relative motion of the screw rod out of the clamping jaw, at this moment, the distance between the bottom of the clamping jaw and the bearing located in the clamping jaw and the ground changes, not only can adapt to different working environment, also convenient for the dismantling of different bearings.

Description

Technical Field

[0001] This utility model relates to the field of bearing equipment technology, specifically to a special tooling for bearing disassembly. Background Technology

[0002] Chinese utility model patent application number CN202323194505.X discloses a bearing disassembly fixture, belonging to the field of bearing disassembly technology. The disassembly fixture includes: a threaded column having an internal thread surface and an external thread surface; a base fixedly connected to the threaded column, the base having a tapered surface; a mounting block connected to the external thread surface; and at least three sets of tie rods rotatably connected to the mounting block.

[0003] The above structure disassembles the bearing by rotating the push rod on the internal thread surface of the threaded column. However, in order to ensure the stroke of the push rod, a threaded column of sufficient length is required. Therefore, a large number of rotations are required when rotating the push rod, which not only increases the labor intensity of the operator but also reduces the disassembly efficiency of the bearing. To address this, we propose a special tooling for bearing disassembly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a special tooling for bearing disassembly to solve the above-mentioned problems in the prior art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a special tooling for bearing disassembly, including a base, a plurality of claws are arranged circumferentially at the bottom of the base, a pressing arm that can move vertically up and down is provided inside the base, and a pressing head is detachably connected to the bottom of the pressing arm, the pressing head being located directly above the center of the space enclosed by the circumferentially arranged claws;

[0008] A pair of support rods extend upward from one side of the top of the base, and a pressing part is rotatably connected between the pair of support rods. The bottom of the middle part of the pressing part abuts against the top of the pressing arm, which is used to drive the pressing arm to move downward.

[0009] Furthermore, the extrusion part includes a pressure rod, one end of which is rotatably connected between a pair of support rods, and the other end is provided with a pressure handle for easy gripping. The bottom of the middle part of the pressure rod is provided with a downward protrusion, the bottom of which abuts against the top of the top pressure arm.

[0010] Furthermore, the base has outwardly extending skirts on its front and rear sides, and each claw has a symmetrically arranged slider on its top. The symmetrically arranged sliders are located on the skirts on the front and rear sides of the base and can slide laterally along the skirts. The bottom of the claw has a clamping head for supporting the bottom of the bearing outer ring. The top of the clamping head is horizontally arranged to fit the bottom of the bearing outer ring.

[0011] Furthermore, the claw is provided with a threaded hole that extends through its bottom, and a screw is threadedly connected inside the threaded hole by rotation and tightening.

[0012] Furthermore, a torsion block is hinged to the bottom of the screw, and the bottom of the torsion block is flush with the bottom of the screw.

[0013] Furthermore, the torsion block has a U-shaped structure, and its inner wall is dampedly connected to the outer wall of the screw to prevent the torsion block from rotating on its own when it is not subjected to external force.

[0014] Furthermore, the bottom of the claw is provided with a receiving groove for accommodating the torsion block, and the receiving groove is provided with a strip groove to facilitate the rotation of the torsion block.

[0015] Furthermore, a protruding ring is fixed to the outer wall of the top pressing arm, and a spring is provided between the protruding ring and the base, which is sleeved on the outer wall of the top pressing arm to provide a restoring elastic force for the top pressing arm when the pressing part is released.

[0016] (III) Beneficial Effects

[0017] This utility model provides a special tooling for bearing disassembly. It has the following beneficial effects:

[0018] 1. Press the end of the extrusion part away from the support rod. At this time, the top pressure head will press down on the inner ring of the bearing and squeeze the inner ring of the bearing out of the bearing, making disassembly easy, quick and convenient.

[0019] 2. Rotate the screw to move the screw relative to the chuck. At this time, the distance between the bottom of the chuck and the bearing located inside the chuck and the ground changes. This not only adapts to different working environments, but also facilitates the disassembly of different bearings. Attached Figure Description

[0020] Figure 1 This is a front-view perspective view of the overall structure of this utility model;

[0021] Figure 2 This is a bottom-view perspective view of the overall structure of this utility model;

[0022] Figure 3 This is a three-dimensional cross-sectional view of the base structure of this utility model;

[0023] Figure 4 This is a bottom-view perspective view of the claw structure of this utility model;

[0024] Figure 5 This is a three-dimensional schematic diagram of the torsion block structure of this utility model.

[0025] In the diagram: 1. Base; 11. Support rod; 121. Pressure rod; 122. Pressure handle; 123. Protrusion; 13. Skirt; 2. Claw; 21. Slider; 22. Claw head; 23. Screw; 24. Torsion block; 25. Threaded hole; 26. Receiving groove; 27. Strip groove; 3. Top pressure arm; 4. Top pressure head; 5. Protruding ring; 6. Spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] See attached document Figure 1-2 A special tooling for disassembling bearings includes a base 1, with a plurality of claws 2 arranged circumferentially at the bottom of the base 1. The bottom of the claws 2 forms a bearing portion for carrying the bearing. A pressing arm 3 that can move vertically up and down is provided inside the base 1. A pressing head 4 is detachably connected to the bottom of the pressing arm 3. The top of the pressing head 4 is inserted into the interior of the bottom of the pressing arm 3 and forms a threaded connection. The pressing head 4 is located directly above the center of the space enclosed by the circumferentially arranged claws 2, so that the pressing head 4 can stably press the inner ring of the bearing downward.

[0028] A pair of support rods 11 extend upward from one side of the top of the base 1. A pressing part is rotatably connected between the pair of support rods 11. The end of the pressing part is hinged to the pair of support rods 11, which can greatly reduce the force required to press the pressing part. The bottom of the middle part of the pressing part abuts against the top of the pressing arm 3, which is used to drive the pressing arm 3 to move downward.

[0029] In use, place the bearing on the bearing portion of the circumferentially arranged claw 2, and then press the end of the pressing part away from the support rod 11. At this time, the pressing part rotates and presses down the top pressing arm 3. At this time, the top pressing head 4 presses down the inner ring of the bearing and squeezes the inner ring of the bearing out of the bearing to complete the disassembly of the bearing. The disassembly is labor-saving, quick and convenient.

[0030] The extrusion part includes a pressure rod 121. One end of the pressure rod 121 is rotatably connected between a pair of support rods 11, and the other end is provided with a pressure handle 122 for easy gripping. A rubber ring is fitted on the outer wall of the pressure handle 122 to reduce the reaction force when pressing the pressure handle 122. The bottom of the middle part of the pressure rod 121 is provided with a downward protrusion 123. The bottom of the protrusion 123 abuts against the top of the top pressure arm 3. When the pressure handle 122 is pressed, the pressure rod 121 drives the protrusion 123 to rotate downward and squeeze the top pressure arm 3, so that the top pressure head 4 squeezes the inner ring of the sealing ring downward.

[0031] The base 1 has outwardly extending skirts 13 on both the front and rear sides. Each claw 2 has a symmetrically arranged slider 21 on its top. The symmetrically arranged sliders 21 are located on the skirts 13 on the front and rear sides of the base 1 and can slide laterally along the skirts 13. The inner sidewall of the slider 21 is in contact with the outer edge of the skirt 13, and the upper and lower inner sidewalls are in contact with the upper and lower surfaces of the skirt 13. The slider 21 is provided with bolts. By tightening and loosening the bolts, the slider 21 can slide on the skirt 13. The claw 2 is prevented from deflecting under the restriction of the sliders 21 on both sides. The claw 2 and the slider 21 are detachably connected by bolts, which makes it easy to replace the claw 2 as needed. The bearing part is a chuck head 22 located at the bottom of the claw 2. The top of the chuck head 22 is horizontally arranged to fit the bottom of the outer ring of the bearing, so that the bearing located between several claws 2 is better supported.

[0032] See attached document Figure 3-4 The jaw 2 has a threaded hole 25 that passes through its bottom. The threaded hole 25 is threadedly connected to a screw 23 by rotation and tightening. Rotating the screw 23 causes the screw 23 to move out of the jaw 2. At this time, the screw 23 supports the bottom of the jaw 2, which further changes the distance between the jaw 2 and the bearing located in the jaw 2 and the ground. This not only adapts to different working environments, but also facilitates the disassembly of different bearings.

[0033] A torsion block 24 is hinged to the bottom of the screw 23. The bottom of the torsion block 24 is flush with the bottom of the screw 23. When rotating the screw 23, the torsion block 24 is rotated first to make the torsion block 24 and the screw 23 relatively horizontal. Then, the screw 23 is rotated by rotating the torsion block 24, which makes it easy to turn the screw 23.

[0034] The torsion block 24 has a U-shaped structure with both sides being horizontal, which facilitates the screw 23 to be turned through the torsion block 24. The inner wall is dampedly connected to the outer wall of the screw 23 to prevent the torsion block 24 from rotating on its own when no external force is applied. Rotating the torsion block 24 makes it perpendicular to the screw 23, which makes it easy to retract the torsion block 24.

[0035] The bottom of the claw 2 is provided with a receiving groove 26 for accommodating the torsion block 24, which facilitates the storage of the torsion block 24. The receiving groove 26 is provided with a strip groove 27 to facilitate the rotation of the torsion block 24.

[0036] A protruding ring 5 is fixed on the outer wall of the top pressing arm 3. A spring 6 is provided between the protruding ring 5 and the base 1 and sleeved on the outer wall of the top pressing arm 3. This spring 6 is used to provide the top pressing arm 3 with a reset force when the pressing part is released, so that the top pressing arm 3 can automatically reset upward when the pressing part is pressed down.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A special tooling for bearing disassembly, comprising a base (1), wherein the bottom of the base (1) is provided with a plurality of claws (2) in a circumferential direction, characterized in that: The base (1) is provided with a pressing arm (3) that can move vertically up and down. The bottom of the pressing arm (3) is detachably connected to a pressing head (4), which is located directly above the center of the space enclosed by the circumferentially arranged claws (2). A pair of support rods (11) extend upward from one side of the top of the base (1), and a pressing part is rotatably connected between the pair of support rods (11). The bottom of the middle part of the pressing part abuts against the top of the pressing arm (3) to drive the pressing arm (3) to move downward.

2. The bearing disassembly tooling as described in claim 1, characterized in that: The extrusion part includes a pressure rod (121), one end of which is rotatably connected between a pair of support rods (11), and the other end is provided with a pressure handle (122) for easy gripping. The bottom of the middle part of the pressure rod (121) is provided with a downward protrusion (123), and the bottom of the protrusion (123) abuts against the top of the top pressure arm (3).

3. A special tooling for bearing disassembly as described in claim 1 or 2, characterized in that: The base (1) has outwardly extending skirts (13) on its front and rear sides. Each claw (2) has a symmetrically arranged slider (21) on its top. The symmetrically arranged sliders (21) are located on the skirts (13) on the front and rear sides of the base (1) and can slide laterally along the skirts (13). The bottom of the claw (2) is provided with a clamping head (22) for supporting the bottom of the outer ring of the bearing. The top of the clamping head (22) is horizontally arranged to fit the bottom of the outer ring of the bearing.

4. The bearing disassembly tooling as described in claim 3, characterized in that: The claw (2) has a threaded hole (25) that extends through its bottom, and a screw (23) is threadedly connected inside the threaded hole (25) by rotation and tightening.

5. The bearing disassembly fixture as described in claim 4, characterized in that: The bottom of the screw (23) is hinged to a torsion block (24), the bottom of which is flush with the bottom of the screw (23).

6. The bearing disassembly fixture as described in claim 5, characterized in that: The torsion block (24) has a U-shaped structure, and its inner wall is dampedly connected to the outer wall of the screw (23) to prevent the torsion block (24) from rotating on its own when it is not subjected to external force.

7. The bearing disassembly fixture as described in claim 5, characterized in that: The bottom of the claw (2) is provided with a receiving groove (26) for accommodating the torsion block (24), and the receiving groove (26) is provided with a strip groove (27) to facilitate the rotation of the torsion block (24).

8. The bearing disassembly tooling as described in claim 1, characterized in that: A protruding ring (5) is fixed to the outer wall of the top pressing arm (3). A spring (6) is provided between the protruding ring (5) and the base (1) and sleeved on the outer wall of the top pressing arm (3) to provide a restoring force for the top pressing arm (3) when the pressing part is released.

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