Closed type special bearing disassembling puller
By designing a closed special bearing disassembly puller, the combined structure of the fixed clamping assembly and the ejection assembly is used to solve the problems of small gaps, easy bearing exposure and low safety factor during the bearing disassembly process, safe and efficient disassembly of the bearings are achieved, and the safety and applicability of the device are improved.
Patent Information
- Application Number
- CN202421625368.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-10
AI Technical Summary
During the disassembly of existing bearings, there are problems such as too small gaps that lead to the pulling of the bearings, exposed bearings and easily disintegrate and damaged frames that endanger workers' personal safety and low safety factor of the device.
A closed special bearing disassembly puller is designed, including a fixed clamping assembly and an ejection assembly. The fixing clamping assembly clamps the bearing through the semicircular arc surface and semicircular plate of the upper fixed body and the lower fixed body. The ejection assembly ejects the bearing through the central top rod and the central top rod cross arm, and uses the locking assembly and the movable arc plate to achieve stable fixation of the bearing.
It effectively avoids the bearings falling apart, breakage and splashing in debris during disassembly, improves the safety of the device, is suitable for the disassembly of bearings of various specifications, reduces the difficulty of disassembly, and has a simple structure and low cost.
Smart Images
Figure CN222779515U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bearing pullers, and in particular relates to a closed special bearing disassembly puller. Background Art
[0002] As an important component, bearings are widely used in the field of mechanical processing. They are mainly used to support mechanical rotating bodies, reduce the friction coefficient during their movement and ensure the rotation accuracy. Therefore, the installation and removal of bearings are particularly important. At present, bearings are generally removed using a three-jaw puller, which is prone to the following problems: (i) The gaps between motor bearings of different models are too small, and the puller cannot hook the bearings and cannot be disassembled; (ii) When disassembling the bearings, the bearings are exposed to the outside, and the bearings are prone to fall apart and break, endangering the personal safety of workers; (iii) When disassembling the bearings, the puller hook connecting screws are prone to breakage and splashing, and the safety factor is low. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology and solve the technical problems that the bearing end cover gap is narrow and difficult to disassemble during the existing bearing disassembly, the bearing is easily broken and exposed, which endangers the personal safety of workers, and the safety factor of the device is low, the utility model provides a closed special bearing disassembly puller.
[0004] The utility model is implemented through the following technical solutions.
[0005] The utility model provides a closed special bearing disassembly puller, comprising a fixed clamping component and an ejection component;
[0006] The fixing clamping assembly is used to fix the rotor with the bearing, and the fixing clamping assembly comprises an upper fixing body and a lower fixing body, and the upper fixing body and the lower fixing body are both flat hollow semi-cylindrical structures, and the upper fixing body and the lower fixing body both comprise semi-circular surfaces, and the left and right ends of the semi-circular surfaces are both provided with semi-circular plates, and the semi-circular plates are provided with openings; a first cross arm insertion hole is provided at the top of the right end of the inner cavity of the upper fixing body, and a second cross arm insertion hole corresponding to the first cross arm insertion hole is provided at the bottom of the right end of the inner cavity of the lower fixing body, a plurality of first nuts are provided at the edge of the side wall of the upper fixing body, and a plurality of second nuts corresponding to the first nuts are provided at the edge of the side wall of the lower fixing body, and the upper fixing body and the lower fixing body are fixedly connected after the screw passes through the first nut and the second nut;
[0007] The ejection assembly is arranged in the inner cavity of the fixed clamping assembly for ejecting the rotor. The ejection assembly includes a center ejector rod and a center ejector rod cross arm. The outer wall of the center ejector rod is provided with a thread. One end of the center ejector rod is a conical head, and the other end of the center ejector rod is a hanging ring. The right end of the center ejector rod is movably connected with the center ejector rod cross arm. After the ejection assembly is placed in the inner cavity of the fixed clamping assembly, the center ejector rod cross arm is inserted into the first cross arm insertion hole and the second cross arm insertion hole, and the conical head of the center ejector rod supports the rotor.
[0008] Furthermore, the inner cavities of the upper fixed body and the lower fixed body are located on the left side of the first cross arm socket and are also provided with a locking assembly, the locking assembly includes a locking plate, the locking plate includes a horizontal plate and a vertical plate arranged in the center of the horizontal plate, the horizontal plate and the vertical plate are tightly attached to the side walls of the inner cavities of the upper fixed body and the lower fixed body, through holes are provided at both ends of the horizontal plate, and the locking screws pass through the through holes on the upper fixed body and the through holes on the lower fixed body in turn and are fixedly connected with the locking nut.
[0009] Furthermore, a movable arc piece is movably installed at the left end of the inner cavity of the upper fixed body and the lower fixed body, and the movable arc piece is movably connected to the upper fixed body and the lower fixed body through screws.
[0010] Furthermore, the thickness of the upper fixing body and the lower fixing body is less than 10 mm.
[0011] Furthermore, a plurality of support seats are provided at the bottom end of the side wall of the lower fixed body.
[0012] Furthermore, the radius of the opening is smaller than the radius of the semicircular surface.
[0013] Furthermore, the width dimension of the first cross arm insertion hole is equal to the width dimension of the second cross arm insertion hole and is equal to the width dimension of the cross arm of the central mandrel.
[0014] The beneficial effects achieved by the utility model are as follows: the utility model uses an upper fixed body and a lower fixed body for fully enclosed bearing disassembly, which effectively avoids accidents in which the bearing falls apart or broken fragments splash and injure people during the disassembly process, and the safety of the device is improved; the first nut and the second nut are used, which can be adjusted and disassembled according to the different sizes of the bearing, saving time and effort, and being suitable for the disassembly of bearings of various specifications; the locking component is used to clamp the center push rod and then the bearing, to prevent the bearing from falling apart and fragments splashing when the bearing is disassembled, thereby playing a safety protection role; the movable arc piece is used to fix the bearing according to the different sizes of the bearing, to prevent the bearing from falling apart and fragments splashing when the bearing is disassembled; in addition, the device has a simple structure and low cost, and the thickness of the upper fixed body and the lower fixed body is small, which makes it easier to hang the bearing when the gap of the bearing end cover is narrow, and the difficulty of disassembling the bearing is reduced under the condition of balanced force.
[0015] Compared with the prior art, the utility model has the advantages of being suitable for disassembling bearings of various specifications, avoiding splashing injuries, improving device safety, low cost, and reducing the difficulty of disassembly due to narrow gaps in the bearing end covers. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the lower fixed body of the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the upper fixed body of the utility model;
[0018] Figure 3 It is a schematic diagram of the structure of the ejection assembly of the utility model;
[0019] Figure 4 It is a schematic diagram of the structure of the utility model after the lower fixed body is placed in the rotor with bearings and the ejection assembly;
[0020] Figure 5 It is a schematic diagram of the structure of the utility model after clamping the bearing.
[0021] In the figure: 1. upper fixed body; 2. lower fixed body; 3. semicircular arc surface; 4. semicircular plate; 5. opening; 6. first cross arm insertion hole; 7. second cross arm insertion hole; 8. first nut; 9. second nut; 10. center push rod; 11. center push rod cross arm; 12. conical head; 13. hanging ring; 14. locking plate; 15. cross plate; 16. vertical plate; 17. through hole; 18. movable arc plate; 19. support seat. DETAILED DESCRIPTION
[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0023] like Figures 1 to 5 As shown, a closed special bearing disassembly puller includes a fixed clamping component and an ejection component.
[0024] The fixing clamping assembly is used to fix the rotor with bearings. The fixing clamping assembly includes an upper fixing body 1 and a lower fixing body 2. The thickness of the upper fixing body 1 and the lower fixing body 2 is less than 10 mm, so that the bearing can be easily disassembled and the overall weight of the device is reduced. In addition, it is easier to hang the bearing in the case of narrow gaps in the bearing end cover, and the difficulty of disassembling the bearing is reduced under the condition of balanced force. The upper fixing body 1 and the lower fixing body 2 are both flat hollow semi-cylindrical structures. The upper fixing body 1 and the lower fixing body 2 both include a semi-circular surface 3. The left and right ends of the semi-circular surface 3 are provided with a semi-circular plate 4. The semi-circular plate 4 is provided with an opening 5. The radius of the opening 5 is smaller than the radius of the semi-circular surface 3. The setting of the opening 5 is convenient for clamping the bearing and for ejecting the assembly and the rotor with the bearing to enter and exit. The top right end of the inner cavity of the upper fixed body 1 is provided with a first cross arm socket 6, the bottom right end of the inner cavity of the lower fixed body 2 is provided with a second cross arm socket 7 corresponding to the first cross arm socket 6, the edge of the side wall of the upper fixed body 1 is provided with a plurality of first nuts 8, the edge of the side wall of the lower fixed body 2 is provided with a plurality of second nuts 9 corresponding to the first nuts 8 one by one, the screw passes through the first nut 8 and the second nut 9 to fix the upper fixed body 1 and the lower fixed body 2 in connection, the setting of the first nut 8 and the second nut 9 can be adjusted and disassembled according to the different sizes of the bearing, saving time and effort, and is suitable for the disassembly of bearings of various specifications. The bottom end of the side wall of the lower fixed body 2 is provided with a plurality of support seats 19, and the setting of the support seats 19 makes the device more stable. The inner cavities of the upper fixed body 1 and the lower fixed body 2 are located on the left side of the first cross arm insertion hole 6 and are also provided with a locking assembly. The locking assembly includes a locking plate 14. The locking plate 14 includes a horizontal plate 15 and a vertical plate 16 arranged at the center of the horizontal plate 15. The horizontal plate 15 and the vertical plate 16 are close to the side walls of the inner cavities of the upper fixed body 1 and the lower fixed body 2. Through holes 17 are provided at both ends of the horizontal plate 15. The locking screw passes through the through holes 17 on the upper fixed body 1 and the through holes 17 on the lower fixed body 2 in turn and is fixedly connected with the locking nut. The setting of the locking assembly can clamp the central push rod 10 to further clamp the bearing to prevent the bearing from falling apart and fragments from splashing when the bearing is disassembled, thereby playing a safety protection role. A movable arc plate 18 is movably installed at the left end of the inner cavity of the upper fixed body 1 and the lower fixed body 2. The movable arc plate 18 is movably connected to the upper fixed body 1 and the lower fixed body 2 by screws. The movable arc plate 18 can also be used to fix the bearing according to different sizes of the bearing to prevent the bearing from falling apart and fragments from splashing when the bearing is disassembled.
[0025] The ejection assembly is arranged in the inner cavity of the fixed clamping assembly for ejecting the rotor. The ejection assembly includes a central ejector rod 10 and a central ejector rod cross arm 11. The outer wall of the central ejector rod 10 is provided with threads. One end of the central ejector rod 10 is a conical head 12. The setting of the conical head 12 is more convenient for holding the rotor with the bearing. The other end of the central ejector rod 10 is a hanging ring 13. The setting of the hanging ring 13 is convenient for using a wrench to disassemble the bearing, saving time and effort. The right end of the central ejector rod 10 is movably connected with a central ejector rod cross arm 11. The width dimension of the central ejector rod cross arm 11 is equal to the width dimension of the first cross arm insertion hole 6 and the width dimension of the second cross arm insertion hole 7. The central ejector rod cross arm 11 can also match the first cross arm insertion hole 6 and the second cross arm insertion hole 7 according to the size of the bearing. After the ejection assembly is placed in the inner cavity of the fixed clamping assembly, the central ejector cross arm 11 is inserted into the first cross arm insertion hole 6 and the second cross arm insertion hole 7, the conical head 12 of the central ejector 10 supports the rotor, and the central ejector 10 is twisted until the bearing is removed from the rotor.
[0026] The working process of the utility model is as follows:
[0027] Lay the lower fixed body 2 flat, put the rotor with the bearing into the inner cavity of the lower fixed body 2 along the opening 5 and fix it with the movable arc piece 18, flexibly connect the center push rod 10 and the center push rod cross arm 11, cooperate with the second cross arm socket 7 of the lower fixed body 2 and the first cross arm socket 6 of the upper fixed body 1, and the locking screw passes through the through hole 17 on the upper fixed body 1 and the through hole 17 on the lower fixed body 2 in turn and is fixedly connected with the locking nut, splice the upper fixed body 1 and the lower fixed body 2, and fix the upper fixed body 1 and the lower fixed body 2 after the screw passes through the first nut 8 and the second nut 9 according to the size of the bearing, twist the center push rod 10, and the conical head of the center push rod 10 supports the rotor until the bearing is removed from the rotor, and finally open the upper fixed body 1 and the lower fixed body 2 to disassemble and remove the bearing.
[0028] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes. The implementation modes can still be changed within the knowledge scope of ordinary technicians in the field. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A closed special bearing disassembly puller, characterized by: It includes a fixed clamping assembly and an ejection assembly; The fixing clamping assembly is used to fix a rotor with a bearing, and comprises an upper fixing body (1) and a lower fixing body (2), wherein the upper fixing body (1) and the lower fixing body (2) are both flat hollow semi-cylindrical structures, and the upper fixing body (1) and the lower fixing body (2) both comprise a semi-circular surface (3), and a semi-circular plate (4) is provided at the left and right ends of the semi-circular surface (3), and an opening (5) is provided on the semi-circular plate (4); the right end of the inner cavity of the upper fixing body (1) is A first cross arm insertion hole (6) is provided at the top, a second cross arm insertion hole (7) corresponding to the first cross arm insertion hole (6) is provided at the bottom of the right end of the inner cavity of the lower fixed body (2), a plurality of first nuts (8) are provided at the edge of the side wall of the upper fixed body (1), a plurality of second nuts (9) corresponding to the first nuts (8) are provided at the edge of the side wall of the lower fixed body (2), and the upper fixed body (1) and the lower fixed body (2) are fixedly connected after the screw passes through the first nut (8) and the second nut (9); The ejection assembly is arranged in the inner cavity of the fixed clamping assembly for ejecting the rotor, and the ejection assembly comprises a central ejector rod (10) and a central ejector rod cross arm (11); the outer wall of the central ejector rod (10) is provided with a thread, one end of the central ejector rod (10) is a conical head (12), the other end of the central ejector rod (10) is a hanging ring (13), and the right end of the central ejector rod (10) is movably connected to the central ejector rod cross arm (11); after the ejection assembly is placed in the inner cavity of the fixed clamping assembly, the central ejector rod cross arm (11) is inserted into the first cross arm insertion hole (6) and the second cross arm insertion hole (7), and the conical head (12) of the central ejector rod (10) supports the rotor.
2. A closed special bearing disassembly puller according to claim 1, characterized in that: The inner cavities of the upper fixed body (1) and the lower fixed body (2) are both provided with a locking assembly on the left side of the first cross arm insertion hole (6), and the locking assembly includes a locking plate (14), and the locking plate (14) includes a horizontal plate (15) and a vertical plate (16) arranged at the center of the horizontal plate (15), and the horizontal plate (15) and the vertical plate (16) are closely attached to the side walls of the inner cavities of the upper fixed body (1) and the lower fixed body (2), and through holes (17) are provided at both ends of the horizontal plate (15), and the locking screw passes through the through holes (17) on the upper fixed body (1) and the through holes (17) on the lower fixed body (2) in sequence and is fixedly connected with the locking nut.
3. The enclosed special bearing disassembly puller according to claim 1, characterized in that: A movable arc piece (18) is movably mounted at the left end of the inner cavity of the upper fixed body (1) and the lower fixed body (2), and the movable arc piece (18) is movably connected to the upper fixed body (1) and the lower fixed body (2) via screws.
4. The enclosed special bearing disassembly puller according to claim 1, characterized in that: The thickness of the upper fixing body (1) and the lower fixing body (2) is less than 10 mm.
5. The enclosed special bearing disassembly puller according to claim 1, characterized in that: A plurality of support seats (19) are provided at the bottom end of the side wall of the lower fixed body (2).
6. The enclosed special bearing disassembly puller according to claim 1, characterized in that: The radius of the opening (5) is smaller than the radius of the semicircular arc surface (3).
7. The enclosed special bearing disassembly puller according to claim 1, characterized in that: The width dimension of the first cross arm insertion hole (6) is equal to the width dimension of the second cross arm insertion hole (7) and is equal to the width dimension of the central top rod cross arm (11).