Knuckle bearing assembling and disassembling tool
By designing a tooling for loading and unloading spherical bearings, a threaded cylinder and threaded rod are used to drive the loading and unloading claws to finely adjust the force for disassembly. Combined with a clamping mechanism to prevent workpiece displacement, the problem of damage during the loading and unloading process of spherical bearings in the prior art is solved, ensuring assembly accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, hammering or impact force is often used when installing or removing spherical plain bearings, which can cause bearing deformation, cage breakage, and surface scratches, affecting assembly accuracy.
Design a joint bearing loading and unloading fixture, including a loading and unloading mechanism and a clamping mechanism. The loading and unloading claws are driven by a threaded cylinder and a threaded rod to achieve fine-tuning force disassembly, avoid damage from knocking, and prevent workpiece displacement through the clamping mechanism.
This effectively avoids damage to the spherical plain bearing during disassembly, maintains assembly precision, and ensures the quality of subsequent assembly.
Smart Images

Figure CN224102867U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bearing dismounting technical field, especially relate to a knuckle bearing dismounting frock. BACKGROUND
[0002] The knuckle bearing is a special type of sliding bearing, which is composed of an inner ring and an outer ring. The inner ring is usually a spherical structure, which can realize swing and rotary motion in multiple directions. Its design allows a certain degree of alignment function, which can compensate for the installation error or deformation between the shaft and the bearing seat. Therefore, it is widely used in mechanical structures with high load, low speed and flexible motion. However, during the dismounting process of the knuckle bearing, it is necessary to use hammering or impact force to complete the dismounting of the bearing. Although this method is simple to operate and does not require special tools, it has significant drawbacks. Direct knocking may cause deformation of the inner ring, outer ring or rolling body of the bearing, or even break the retainer. In addition, the surface of the shaft or bearing seat may be scratched, dented or micro-cracked due to knocking, which destroys the fitting accuracy and affects subsequent assembly. Therefore, we hope to design a knuckle bearing dismounting frock to solve this problem. SUMMARY
[0003] In view of the deficiencies in the prior art, the utility model aims to provide a knuckle bearing dismounting frock to solve the problems raised in the background.
[0004] The utility model discloses the following technical scheme: a knuckle bearing dismounting frock, comprising: the upper side of the base is provided with a dismounting mechanism for dismounting the knuckle bearing, the inside of the base is provided with a clamping mechanism for clamping workpieces,
[0005] The dismounting mechanism comprises a support frame, which is fixedly connected to the upper surface of the base. A threaded cylinder is connected to the upper side of the support frame through a bearing. A threaded rod one is screwed into the inside of the threaded cylinder. A connecting cylinder is fixedly connected to the lower end of the threaded rod one. A dismounting claw is hinged in the inside of the connecting cylinder. By setting the dismounting mechanism, the connecting cylinder and the dismounting claw are driven by the threaded rod one to advance, allowing fine adjustment of the force of the dismounting claw to advance, and avoiding damage to the components caused by knocking and dismounting.
[0006] As a preferred embodiment, the number of dismounting claws is three and they are distributed circumferentially in the inside of the connecting cylinder, ensuring uniform stress distribution of the knuckle bearing and avoiding deformation or shaft neck scratches caused by tilting or eccentricity.
[0007] As a preferred embodiment, a spring is arranged in the inside of the connecting cylinder, one end of the spring is fixedly connected with the upper end of the dismounting claw, and the other end of the spring is fixedly connected with the inside surface of the connecting cylinder.
[0008] As a preferred implementation, the upper end of the support frame is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with a limiting block.
[0009] As a preferred implementation, the outer side of the connecting cylinder is provided with a sliding groove, and the limiting block is slidingly fitted in the inner side of the sliding groove.
[0010] As a preferred implementation, the clamping mechanism comprises a second threaded rod, the second threaded rod is connected to the inner side of the support frame through a bearing sleeve, the right end of the second threaded rod is fixedly connected with a rotating disc, and the outer side of the second threaded rod is screwed with a connecting block.
[0011] As a preferred implementation, the upper end of the connecting block is fixedly connected with a mounting block, and the upper end of the mounting block is fixedly mounted with a clamping block through a screw.
[0012] As a preferred implementation, the second threaded rod is a bidirectional threaded structure for the relative motion or opposite motion of the connecting block.
[0013] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:
[0014] 1. By setting the dismounting mechanism, the threaded motion between the threaded cylinder and the first threaded rod drives the connecting cylinder and the dismounting claw to push the joint bearing, wherein the threaded advance allows fine adjustment of the force of the dismounting claw advance, avoids damage to the parts caused by knocking and dismounting, and further avoids damage to the cooperation precision and affects the subsequent assembly.
[0015] 2. By setting the clamping mechanism, the workpiece is clamped to avoid accidental displacement of the workpiece during dismounting of the joint bearing. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0017] Figure 1 It is a front right oblique view of the whole joint bearing dismounting tool of the present application.
[0018] Figure 2 It is a partial structure perspective view of the joint bearing dismounting tool of the present application.
[0019] Figure 3The utility model provides a kind of joint bearing mounting and demounting tool's mounting and demounting mechanism partial stereogram.
[0020] Figure 4 The utility model provides a kind of joint bearing mounting and demounting tool Figure 3 The utility model provides a kind of joint bearing mounting and demounting tool
[0021] Figure 5 The utility model provides a kind of joint bearing mounting and demounting tool's partial structure front view.
[0022] Figure 6 The utility model provides a kind of joint bearing mounting and demounting tool's partial structure exploded view.
[0023] In the drawing, 1-base, 2-mounting and demounting mechanism, 3-clamping mechanism;
[0024] 21-support frame, 22-threaded cylinder, 23-threaded rod one, 24-connection cylinder, 25-mounting and demounting claw, 26-spring, 27-connecting rod, 28-limiting block;
[0025] 31-second threaded rod, 32-connection block, 33-rotating disc, 34-mounting block, 35-clamping block, 36-screw. DETAILED DESCRIPTION
[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0027] Please refer to Figures 1 to 6 The utility model provides a kind of technical scheme: a kind of joint bearing mounting and demounting tool, it includes: base 1, the upper side of base 1 is provided with the mounting and demounting mechanism 2 for mounting and demounting joint bearing, the inside of base 1 is provided with the clamping mechanism 3 for clamping workpiece;
[0028] Mounting and demounting mechanism 2 includes support frame 21, support frame 21 is fixedly connected to the upper side surface of base 1, the upper side of support frame 21 is connected with threaded cylinder 22 by bearing sleeve, the inside of threaded cylinder 22 is screwed with threaded rod one 23, the lower end of threaded rod one 23 is fixedly connected with connection cylinder 24, the inside of connection cylinder 24 is hinged with mounting and demounting claw 25, by setting mounting and demounting mechanism 2, threaded rod one 23 drives connection cylinder 24 and mounting and demounting claw 25 to advance, allow fine adjustment mounting and demounting claw 25 advancing force, avoid the damage of component caused by knocking and dismounting.
[0029] The number of the dismounting claws 25 is three groups and is distributed in the inside of the connecting cylinder 24 in a circumferential equal division, which ensures that the joint shaft bearing is uniformly stressed and avoids bearing deformation or shaft neck scratch caused by inclination or eccentricity.
[0030] The inside of the connecting cylinder 24 is provided with a spring 26, one end of the spring 26 is fixedly connected with the upper end of the dismounting claw 25, and the other end of the spring 26 is fixedly connected with the inside surface of the connecting cylinder 24.
[0031] The upper end of the supporting frame 21 is fixedly connected with a connecting rod 27, and the connecting rod 27 is fixedly connected with a limiting block 28.
[0032] The outside of the connecting cylinder 24 is provided with a sliding groove, and the limiting block 28 is slidingly embedded in the inside of the sliding groove.
[0033] The clamping mechanism 3 comprises a second threaded rod 31, the second threaded rod 31 is connected in the inside of the supporting frame 21 through a bearing sleeve, the right end of the second threaded rod 31 is fixedly connected with a rotating disc 33, and the outside of the second threaded rod 31 is screwed with a connecting block 32, through the setting of the clamping mechanism 3, the accidental displacement of the workpiece is avoided in the process of dismounting the joint bearing.
[0034] The upper end of the connecting block 32 is fixedly connected with a mounting block 34, and the upper end of the mounting block 34 is fixedly installed with a clamping block 35 through a screw 36.
[0035] The second threaded rod 31 is a bidirectional threaded structure for the relative motion or opposite motion of the connecting block 32.
[0036] Please refer to Figures 1 to 4 , as the first embodiment of the utility model: when the joint bearing is installed, first, the joint bearing is placed in the installation position of the workpiece, then the threaded cylinder 22 is rotated, the threaded cylinder 22 is screwed with the threaded rod 1 23 in the process of rotation, so that the threaded rod 1 23 drives the connecting cylinder 24 and the dismounting claw 25 to produce displacement and press the joint bearing, so as to push it into the inside of the workpiece, conversely, when the joint bearing is dismounted, the dismounting claw 25 is retracted to make its lower end gather, then the threaded cylinder 22 is rotated to pass through the inner ring of the joint bearing, the dismounting claw 25 after passing through the joint bearing is reset under the elastic force of the spring 26, and the lower end of the dismounting claw 25 is clamped with the lower side of the joint bearing, finally, the threaded cylinder 22 is reversely rotated, so that the threaded rod 1 23 drives the connecting cylinder 24 and the dismounting claw 25 to lift, and then the joint bearing is taken out from the workpiece, in the process that the threaded rod 1 23 drives the connecting cylinder 24 and the dismounting claw 25 to advance, the force of the dismounting claw 25 advancing is allowed to be adjusted, so as to avoid the damage of the parts caused by knocking and dismounting, and then the matching precision is damaged, and the subsequent assembly is affected.
[0037] Please refer to Figure 1 、 Figure 5 and Figure 6As the second embodiment of the utility model: based on the above embodiment, further, before the joint bearing is disassembled, first, the joint bearing is placed between two clamping blocks 35, then the rotating disc 33 is rotated, the rotating disc 33 drives the threaded rod two 31 to rotate simultaneously, the threaded rod two 31 is in the process of rotating and is in threaded motion with the connecting block 32, so that the connecting block 32 drives the mounting block 34 to produce displacement, further, the mounting block 34 drives the clamping block 35 to displace and clamps the workpiece, avoids the accidental displacement of the workpiece in the process of disassembling the joint bearing.
[0038] The above only is the preferred embodiment of the utility model and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A tool for handling a knuckle bearing, comprising: The base (1) is characterized in that the upper side of the base (1) is provided with a dismounting mechanism (2) for dismounting the knuckle bearing, and the inside of the base (1) is provided with a clamping mechanism (3) for clamping the workpiece. The dismounting mechanism (2) comprises a support frame (21) fixedly connected to the upper side surface of the base (1), a threaded cylinder (22) journalled on the upper side of the support frame (21), a threaded rod (23) screwed in the threaded cylinder (22), a connecting cylinder (24) fixedly connected to the lower end of the threaded rod (23), and a dismounting claw (25) hinged in the connecting cylinder (24).
2. A tool for handling a knuckle bearing as claimed in claim 1, characterized in that: The number of the dismounting claws (25) is three and they are circumferentially equally distributed in the connecting cylinder (24).
3. A tool for handling a knuckle bearing as defined in claim 1, characterized in that: The connecting cylinder (24) is provided with a spring (26) fixedly connected at one end to the upper end of the dismounting claw (25) and at the other end to the inner side surface of the connecting cylinder (24).
4. A tool as claimed in claim 1, wherein: The support frame (21) is fixedly connected at the upper end lower side surface with a connecting rod (27) fixedly connected with a limiting block (28).
5. A tool as claimed in claim 4, wherein: The connecting cylinder (24) is provided with a sliding groove on the outer side, and the limiting block (28) is slidingly fitted in the sliding groove.
6. A tool for handling a knuckle bearing as defined in claim 1, characterized in that: The clamping mechanism (3) comprises a threaded rod (31) journalled in the support frame (21), a connecting block (32) screwed on the outer side of the threaded rod (31), a rotary disc (33) fixedly connected to the right end of the threaded rod (31), and a clamping block (35) fixedly mounted on the upper end of a mounting block (34) fixedly connected to the upper end of the connecting block (32).
7. A tool as claimed in claim 6, wherein: The connecting block (32) is fixedly connected at the upper end with the mounting block (34), and the mounting block (34) is fixedly mounted at the upper end with the clamping block (35) by a screw (36).
8. A tool as claimed in claim 6, wherein: The threaded rod (31) is a bidirectional threaded structure for the connecting block (32) to move in opposite directions.