Bearing detacher
By designing a bearing disassembly device with an arc groove and threaded hole structure, the problem of difficult and damaged bearing disassembly in confined spaces has been solved, achieving efficient and low-cost bearing disassembly, which is particularly suitable for the reuse of high-value and high-precision bearings.
Patent Information
- Application Number
- CN202520220924.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing bearing removers are difficult to operate in confined spaces and can easily damage bearings, especially high-precision bearings, making them unusable.
A bearing remover comprising a puller base, a puller body, and a stopper was designed. Through the arc groove and threaded hole structure, the bearing can be disassembled under surface force, adapting to operation in confined spaces. The threaded support member abuts against the center of the bearing, simplifying the disassembly process.
It improves the adaptability and efficiency of bearing disassembly, protects bearings from damage, reduces production costs, and is suitable for the reuse of high-value, high-precision bearings.
Smart Images
Figure CN223685331U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing dismounting tool technical field especially relates to a bearing dismounting device. BACKGROUND
[0002] Among the existing bearing dismounting mode, basically adopt traditional bearing dismounting device to dismount bearing, traditional bearing dismounting device is generally two jaw or three jaw dismounting device, and the operation space required is larger when using, if the space is limited, it can not use. In addition, the traditional bearing dismounting device can cause damage to the bearing when operating due to the small stress point, especially in the occasion with high precision requirement, so that the bearing can not be reused, thereby causing certain waste. SUMMARY
[0003] The utility model discloses a bearing dismounting device, solve the technical problem that the bearing exists in the prior art through traditional bearing dismounting device and dismounts the bearing and the operation space required is larger and the operation is easy to cause damage to the bearing.
[0004] To achieve this purpose, the utility model adopts the following technical scheme:
[0005] The utility model provides a bearing dismounting device, including draw bar, the draw bar includes draw bar base, draw bar main part and stop piece, draw bar base and stop piece set up respectively in both ends of draw bar main part, draw bar base, draw bar main part and stop piece enclose the arc -shaped groove that can hold bearing, be provided with screw hole on draw bar base, screw hole is connected with the piece of resistance in screw thread, the piece of resistance can move along the axial direction of screw hole, with the axle of bearing center resistance, and the end face of bearing is resisted to stop piece.
[0006] The draw bar base of the bearing dismounting device, draw bar main part and stop piece enclose the arc -shaped groove, and a screw hole is formed on the draw bar base, when the bearing is installed in the arc -shaped groove, the screw hole is connected with the piece of resistance in screw thread, the piece of resistance can move along the axial direction of the screw hole, extend into the arc -shaped groove and resist the end face of the bearing on the stop piece, so as to fix the bearing, drive the bearing to pull out by the movement of the draw bar, realize the dismounting of the bearing. The design of the bearing dismounting device fully considers the space limitation in actual operation, can be used flexibly in a relatively narrow environment, greatly improves the adaptability of bearing dismounting work, and the structure of the equipment is simple, and the production cost is greatly reduced. In addition, the bearing dismounting device is easy to operate, and the user can easily operate, complete the dismounting task quickly, and the dismounting efficiency is improved significantly, and the bearing is surface stressed when dismounting, can be protected from damage when dismounting, can be reused, and is especially suitable for high value, high precision and non-standard bearing.
[0007] As a preferred solution of the bearing dismounting device, the puller body is an arc-shaped plate.
[0008] The puller body is an arc-shaped plate, which is simple in structure and easy to manufacture.
[0009] As a preferred solution of the bearing dismounting device, the stopper is connected to the puller body and extends towards the slot opening of the arc-shaped slot, and the stopper is provided with an avoiding slot, and the shaft can extend out of the arc-shaped slot through the avoiding slot.
[0010] The avoiding slot can make the shaft extend out of the arc-shaped slot, avoiding the situation that the bearing cannot be installed into the arc-shaped slot.
[0011] As a preferred solution of the bearing dismounting device, the wall of the avoiding slot is arc-shaped, and the radius of the circle where the wall of the avoiding slot is located is smaller than the radius of the circle where the inner wall of the arc-shaped plate is located.
[0012] The above arrangement can make the bearing play a supporting and limiting role through the stopper after being installed in the arc-shaped slot, preventing the bearing from coming out of the arc-shaped slot.
[0013] As a preferred solution of the bearing dismounting device, the puller base is a circular plate structure, and the threaded hole is arranged at the center of the puller base.
[0014] The puller base is a circular plate structure, and the threaded hole is arranged at the center of the puller base. The abutting member is installed at the center of the puller base to abut the shaft from the center, avoiding the situation that the abutting position is not at the center of the shaft, causing the bearing to be skewed.
[0015] As a preferred solution of the bearing dismounting device, the outer diameter of the circular plate structure is consistent with the outer diameter of the arc-shaped plate.
[0016] The above arrangement makes the puller base flush with the arc-shaped plate after being connected, and the appearance is more beautiful.
[0017] As a preferred solution of the bearing dismounting device, the center of the circular plate structure, the center of the circle where the arc-shaped plate is located, and the center of the circle where the wall of the avoiding slot is located are on the same straight line.
[0018] The above arrangement can make the bearing be installed in the arc-shaped slot along the axis of the threaded hole, avoiding the situation that the bearing is skewed.
[0019] As a preferred solution of the bearing dismounting device, the puller base, the puller body and the stopper are an integral structure.
[0020] The puller base, the puller body and the stopper are an integral structure, reducing the number of parts, and the puller does not need to be assembled when used, which is more convenient to operate.
[0021] As a preferred solution of the bearing dismounting device, the abutting member comprises a screw rod, which is screwed into the threaded hole and can abut against the shaft.
[0022] The screw rod is screwed into the threaded hole, and the length of the screw rod extending into the arc-shaped groove is adjusted by screwing the screw rod, so as to abut against the shaft.
[0023] As a preferred solution of the bearing dismounting device, the abutting member further comprises a screw head, which is connected to the screw rod, and when the screw rod is screwed into the threaded hole, the screw head is located on the side of the draw bar base away from the arc-shaped groove.
[0024] The screw head can limit the screw rod from being screwed too much through the draw bar base.
[0025] The bearing dismounting device has the following beneficial effects:
[0026] The bearing dismounting device provided by the utility model, the draw bar base, the draw bar main body and the stopper of the bearing dismounting device enclose an arc-shaped groove, the threaded hole is arranged on the draw bar base, when the bearing is installed in the arc-shaped groove, the abutting member is screwed into the threaded hole, the abutting member can move along the axis direction of the threaded hole, so as to abut against the shaft of the bearing center and abut the end face of the bearing on the stopper, thereby fixing the bearing, the bearing is pulled out outwardly by the movement of the draw bar, and the dismounting of the bearing is realized. The design of the bearing dismounting device fully considers the space limitation in actual operation, can be flexibly used in a relatively narrow environment, and greatly improves the adaptability of bearing dismounting work; meanwhile, the simple structure of the equipment greatly reduces the production cost. In addition, the bearing dismounting device is easy to operate, users can easily operate, quickly complete the dismounting task, and significantly improve the dismounting efficiency; since the bearing is subjected to surface stress during dismounting, the bearing can be protected from damage during dismounting, and can be repeatedly used, and is particularly suitable for high-value and high-precision non-standard bearings. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 It is the structure schematic view of the draw bar of the bearing dismounting device provided by the utility model;
[0028] Figure 2 It is the structure schematic view of the shaft and the bearing provided by the utility model;
[0029] Figure 3 It is the structure schematic view of the bearing dismounting device and the bearing to be installed provided by the utility model;
[0030] Figure 4 It is the structure schematic view of the draw bar installed on the bearing provided by the utility model;
[0031] Figure 5 Figure 1 is a structural schematic view of a bearing dismounting device provided by the present application installed on a bearing;
[0032] Figure 6 Figure 2 is a structural schematic view of a bearing dismounting device provided by the present application, in which a supporting piece and a shaft are in abutment;
[0033] Figure 7 Figure 3 is a structural schematic view of a bearing dismounting device provided by the present application in the process of dismounting a bearing.
[0034] In the drawings:
[0035] 1, puller; 10, arc-shaped slot; 11, puller base; 111, threaded hole; 12, puller main body; 13, stopper; 131, avoiding slot;
[0036] 2, supporting piece; 21, screw rod; 22, screw head;
[0037] 3, bearing;
[0038] 4, shaft. DETAILED DESCRIPTION
[0039] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, but not all the structures.
[0040] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0041] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0042] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.
[0043] Among the existing bearing dismounting methods, the traditional bearing dismounting device is basically used to dismount the bearing. The traditional bearing dismounting device is generally a two-jaw or three-jaw dismounting device, which requires a large operating space during use. If the space is limited, it may not be used. In addition, the traditional bearing dismounting device may cause damage to the bearing during operation due to the small force point, especially in high-precision applications, so that the bearing cannot be reused, thereby causing a certain waste.
[0044] In order to solve the above problems, as shown in Figure 1 , the present embodiment provides a bearing dismounting device for dismounting the bearing 3 on the shaft 4. Figure 2 As shown in Figure 1 , the bearing dismounting device comprises a drawbar 1, the drawbar 1 comprising a drawbar base 11, a drawbar body 12 and a stop piece 13, the drawbar base 11 and the stop piece 13 being respectively arranged at both ends of the drawbar body 12, the drawbar base 11, the drawbar body 12 and the stop piece 13 surrounding an arc-shaped groove 10 capable of accommodating the bearing 3, the drawbar base 11 being provided with a threaded hole 111, a resisting piece 2 (see Figure 5 ) being threadedly connected in the threaded hole 111, the resisting piece 2 being capable of moving along the axis direction of the threaded hole 111 to abut against the shaft 4 at the center of the bearing 3, and abutting the end face of the bearing 3 against the stop piece 13.
[0045] The puller base 11, the puller body 12 and the stopper 13 of the bearing puller surround the arc-shaped groove 10, and the arc-shaped groove 10 provides sufficient accommodation space for the bearing 3, so that the bearing 3 can be assembled into the arc-shaped groove 10. The threaded hole 111 is arranged on the puller base 11, and the abutting piece 2 is threadedly connected in the threaded hole 111. The threaded hole 111 can effectively convert the rotating force of the abutting piece 2 into a linear pushing force, so as to be transmitted to the entire puller 1, thereby providing necessary power support for disassembling the bearing 3. When the bearing 3 is installed in the arc-shaped groove 10, the abutting piece 2 can move along the axis direction of the threaded hole 111 to abut against the shaft 4 at the center of the bearing 3, and abut the end face of the bearing 3 against the stopper 13, so as to effectively fix the bearing 3. The bearing 3 is pulled out together with the puller 1 through the movement of the puller 1, thereby realizing the disassembly of the bearing 3. The bearing puller fully considers the space limitation in actual operation, and can be flexibly used in a relatively narrow environment, thereby greatly improving the adaptability of the bearing 3 disassembly work. Meanwhile, the equipment has a simple structure, and the production cost is greatly reduced. In addition, the bearing puller is easy to operate, and users can easily operate it to quickly complete the disassembly task, thereby significantly improving the disassembly efficiency.
[0046] In the embodiment, the stopper 13 can abut against the end face of the bearing 3, so that the bearing 3 is subjected to surface force during disassembly, and the bearing 3 can be repeatedly used without being damaged, which is particularly suitable for high-value and high-precision non-standard bearings.
[0047] It should be noted that the diameter of the arc-shaped groove 10 is consistent with the outer diameter of the bearing 3, and the bearing 3 is fitted in the arc-shaped groove 10, and the bearing 3 is in close contact with the inner wall of the arc-shaped groove 10. The width of the arc-shaped groove 10, that is, the distance between the puller base 11 and the stopper 13, is greater than the thickness of the bearing 3, and the bearing 3 can be installed in the arc-shaped groove 10 and abutted by the abutting piece 2. Of course, in order to facilitate the installation of the bearing 3, the diameter of the arc-shaped groove 10 can be designed to be slightly larger than the outer diameter of the bearing 3.
[0048] In the embodiment, the puller body 12 is an arc-shaped plate, which has a simple structure and is easy to prepare. When the puller 1 is prepared, the puller base 11 and the stopper 13 are only needed to be arranged at both ends of the puller body 12. The puller body 12 does not need to be prepared first, and then a groove is arranged on the puller body 12.
[0049] Preferably, the cross section of the puller body 12 is a semicircular structure. The groove wall of the arc-shaped groove 10 formed by the cooperation of the puller base 11 and the stopper 13 is a semicircular structure, which can better accommodate the bearing 3 and form a semi-wrapped state for the bearing 3, so as to avoid the bearing 3 from coming out of the arc-shaped groove 10 during disassembly of the bearing 3.
[0050] As shown in FIG. 1, the bearing puller comprises a puller 1 and an abutting piece 2. Figure 1As shown, the stopper 13 is connected with the puller body 12 and extends towards the slot opening of the arc-shaped slot 10, and the stopper 13 is provided with an avoiding slot 131, the shaft 4 can extend out of the arc-shaped slot 10 through the avoiding slot 131, and the bearing 3 cannot be installed into the arc-shaped slot 10.
[0051] Optionally, the slot wall of the avoiding slot 131 is in an arc-shaped structure, the radius of the circle where the slot wall of the avoiding slot 131 is located is smaller than the radius of the circle where the inner wall of the arc-shaped plate is located, so that the end surface of the bearing 3 can be supported and limited by the stopper 13 after the bearing 3 is installed into the arc-shaped slot 10, and the bearing 3 is prevented from being taken out of the arc-shaped slot 10.
[0052] In the embodiment, the stopper 13 is in a semi-circular ring structure, and the two ends of the stopper 13 are flush with the two straight edges of the arc-shaped plate, so that the appearance of the stopper 13 is more beautiful.
[0053] In the embodiment, the puller base 11 is in a circular plate structure, the center of the puller base 11 is provided with a threaded hole 111, and the bearing retainer 2 is installed at the center position of the puller base 11, so as to retain the shaft 4 from the center, and avoid the situation that the retaining position is not at the center of the shaft 4, and the bearing 3 is skewed.
[0054] In the embodiment, the outer diameter of the circular plate structure is consistent with the outer diameter of the arc-shaped plate, and when the puller base 11 and the arc-shaped plate are connected, the puller base 11 is flush with the arc-shaped plate, so that the appearance of the structure is more beautiful.
[0055] Preferably, the center of the circular plate structure, the center of the circle where the arc-shaped plate is located, and the center of the circle where the slot wall of the avoiding slot 131 is located are on the same straight line, so that the bearing 3 can be installed into the arc-shaped slot 10 along the axial direction of the threaded hole 111, thereby avoiding the situation that the bearing 3 is skewed.
[0056] In the embodiment, the puller base 11, the puller body 12 and the stopper 13 are in an integrated structure, the number of parts is reduced, the puller 1 does not need to be assembled when used, and the operation is more convenient.
[0057] Optionally, as shown in FIG. 4, the puller base 11 is provided with a plurality of threaded holes 111, and the bearing retainer 2 is installed at the center position of the puller base 11, so as to retain the shaft 4 from the center, and avoid the situation that the retaining position is not at the center of the shaft 4, and the bearing 3 is skewed. Figure 5As shown, the abutting member 2 includes a screw rod 21 which is threaded into the threaded hole 111 and can abut against the shaft 4. The screw rod 21 is threaded into the threaded hole 111, and the length of the screw rod 21 protruding into the arc-shaped groove 10 is adjusted by screwing the screw rod 21 to abut against the shaft 4. The abutting member 2 has a simple structure and low cost. The abutting member 2 also includes a screw head 22 connected to the screw rod 21. When the screw rod 21 is threaded into the threaded hole 111, the screw head 22 is located on the side of the drawbar base 11 away from the arc-shaped groove 10. The screw head 22 serves as a limiting part to prevent the screw rod 21 from being screwed too far through the drawbar base 11. In this embodiment, the abutting member 2 is a bolt, which has a simple structure and is easy to obtain. In this embodiment, the screw head 22 of the bolt is a hexagonal head structure, which does not slip when the wrench is used to screw the bolt.
[0058] When disassembling the bearing, a bearing disassembling device is used, as shown in Figure 3 and Figure 4 First, the drawbar 1 is assembled into the bearing 3 from the side through the arc-shaped groove 10, and then, as shown in Figure 5 , the screw rod 21 of the bolt is threaded through the threaded hole 111 on the drawbar base 11. At this point, the assembly of the drawbar 1 is complete.
[0059] Next, a wrench is used to apply torque to the screw head 22 of the bolt. The bolt will move along the axis of the threaded hole 111 until it comes into contact with the shaft 4 (see Figure 6 ). As the torque continues to increase, since the bolt has already contacted the shaft 4 and is relatively stationary, the force will be transmitted to the drawbar 1, pushing the drawbar 1 to move outward along the shaft 4. Since the abutting member 2 has firmly clamped the bearing 3, the movement of the drawbar 1 will pull the bearing 3 out together (see Figure 7 ), and finally complete the disassembly of the bearing 3. The design of the bearing disassembling device not only improves the disassembly efficiency, but also greatly reduces the operation difficulty.
[0060] The bearing disassembling device has the following advantages:
[0061] Improving disassembly efficiency: through ingenious design, the disassembly process of the bearing 3 is faster and more convenient, reducing maintenance and repair time, and improving work efficiency.
[0062] Enhancing adaptability: compact structure, capable of operating in narrow spaces, suitable for bearing 3 disassembly work in various environments and conditions, enhancing the versatility and adaptability of the tool.
[0063] Reducing cost: the structure of the invention is simple, the production process requirement is not high, which reduces the production cost, makes the product price more competitive, and reduces the maintenance cost.
[0064] Protecting the bearing 3 from damage during disassembly.
[0065] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.
Claims
1. A bearing puller characterized by, The puller (1) comprises a puller base (11), a puller body (12) and a stopper (13), the puller base (11) and the stopper (13) are respectively arranged at both ends of the puller body (12), the puller base (11), the puller body (12) and the stopper (13) enclose an arc-shaped slot (10) capable of accommodating a bearing (3), the puller base (11) is provided with a threaded hole (111), a resisting piece (2) is threadedly connected in the threaded hole (111), the resisting piece (2) can move along the axis direction of the threaded hole (111) to abut against a shaft (4) in the center of the bearing (3) and abut the end face of the bearing (3) against the stopper (13).
2. The bearing dismounting device according to claim 1, characterized in that The puller body (12) is an arc-shaped plate.
3. The bearing dismounting device according to claim 2, characterized in that The stopper (13) is connected with the puller body (12) and extends towards the slot opening of the arc-shaped slot (10), the stopper (13) is provided with a avoiding slot (131), the shaft (4) can extend out of the arc-shaped slot (10) through the avoiding slot (131).
4. The bearing dismounting device according to claim 3, characterized in that The slot wall of the avoiding slot (131) is an arc-shaped structure, the radius of the circle where the slot wall of the avoiding slot (131) is located is smaller than the radius of the circle where the inner wall of the arc-shaped plate is located.
5. The bearing dismounting device according to claim 4, characterized in that The puller base (11) is a circular plate structure, the threaded hole (111) is arranged at the center of the puller base (11).
6. The bearing dismounting device according to claim 5, characterized in that The outer diameter of the circular plate structure is consistent with the outer diameter of the arc-shaped plate.
7. The bearing dismounting device according to claim 5, characterized in that The center of the circular plate structure, the center of the circle where the arc-shaped plate is located and the center of the circle where the slot wall of the avoiding slot (131) is located are on the same straight line.
8. The bearing dismounting device according to any one of claims 1-7, characterized in that, The puller base (11), the puller body (12) and the stopper (13) are an integral structure.
9. The bearing dismounting device according to any one of claims 1-7, characterized in that, The resisting piece (2) comprises a screw rod (21), the screw rod (21) is threadedly connected in the threaded hole (111) and can abut against the shaft (4).
10. The bearing dismounting device according to claim 9, characterized in that The resisting piece (2) further comprises a screw head (22), the screw head (22) is connected with the screw rod (21), when the screw rod (21) is threadedly connected in the threaded hole (111), the screw head (22) is located on the side of the puller base (11) away from the arc-shaped slot (10).