Carrier roller bearing extractor
By designing a roller bearing extractor and utilizing the coordination of the adjustment and extraction components, efficient and damage-free removal of roller bearings is achieved, solving the problems of low repair efficiency and low reuse rate in existing technologies and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN DAZHU MASCH MFG CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, replacing idler roller bearings can easily cause secondary damage to the bearing housing and other materials, resulting in low repair efficiency, low reuse rate and increased production costs.
A roller bearing remover was designed, comprising a main clamp, a secondary clamp, an adjustment component, and a removal component. The opening angle between the main clamp and the secondary clamp is adjusted by the adjustment component, and the sliding hammer in the removal component slides along the guide rod to strike the stop block to generate an impact force, which, together with the adjustment component, removes the bearing.
This improves the versatility and ease of operation of the idler roller bearing removal process, avoids secondary damage, increases repair efficiency and reuse rate, and reduces usage costs.
Smart Images
Figure CN224223797U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of idler roller technology, and in particular to an idler roller bearing remover. Background Technology
[0002] Idler rollers are the main wear parts of underground conveyor belts. The bearings are affected by the underground environment and the scrap rate is increasing year by year. Many scrapped idler rollers are only damaged bearings. The processing and assembly of idler rollers is a complete production line, but the replacement of bearings inside the idler rollers is still abandoned due to low efficiency, difficulty in replacement, and waste of materials.
[0003] Currently, when replacing the internal bearings of idlers with intact roller skins but damaged bearings, a relatively traditional and crude method is usually adopted. Although it is possible to remove the damaged bearing, it is impossible to avoid secondary damage to the bearing housing and other materials during the removal process. As a result, a large number of idlers that could have been repaired are discarded due to material damage, or a lot of manpower and resources are consumed when replacing the bearings, which is time-consuming and labor-intensive. This makes the idler repair efficiency low, the reuse rate low, and increases production costs. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to avoid secondary damage to the bearing housing and other materials during the removal process, resulting in low roller repair efficiency, low reuse rate, and increased production costs. Therefore, this invention proposes a roller bearing remover.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] The idler roller bearing remover includes:
[0007] The main clamp has a secondary clamp hinged to one side, and each of the secondary clamps of the main clamp has a hook foot on the side away from the other end.
[0008] The main clamp and the auxiliary clamp are provided with the same adjustment component, which is used to adjust the opening angle of the main clamp and the auxiliary clamp. The main clamp and the auxiliary clamp are also provided with a take-out component, which is used to cooperate with the adjustment component to take out the bearing.
[0009] In one possible design, the adjusting assembly includes a screw threaded to the rear end of the main clamp, one end of which is fixedly provided with an adjusting nut, a slotted hole is provided on one side of the secondary clamp, the other end of the screw passes through the slotted hole and extends to the outside of the secondary clamp, and a limit block is fixedly provided at the end of the screw extending to the outside of the secondary clamp.
[0010] In one possible design, the extraction assembly includes a U-shaped frame, with a main clamp and a secondary clamp disposed within the U-shaped frame. A common bolt passes through the U-shaped frame, the main clamp, and the secondary clamp. The bottom end of the bolt is threaded to one side of the U-shaped frame. A guide rod is fixedly disposed on the rear side of the U-shaped frame. A movable hammer is slidably disposed on the outside of the guide rod. A stop block is sleeved on the outside of the guide rod. A handle is fixedly disposed on the rear side of the stop block, and the handle is threadedly connected to the guide rod.
[0011] In one possible design, the movable hammer is covered with a rubber sleeve, and the rubber sleeve is fixedly provided with a plurality of evenly distributed anti-slip protrusions.
[0012] In one possible design, the outer circumference of the grip is fixedly provided with anti-slip strips.
[0013] In one possible design, the two hooks are at a 90-degree angle to the main clamp and the auxiliary clamp, respectively.
[0014] In this application, when starting to use, the main clamp and the auxiliary clamp are first placed inside the U-shaped frame. Then, bolts are passed through the U-shaped frame, the main clamp and the auxiliary clamp in sequence, and the bottom end of the bolt is threaded to the bottom of the U-shaped frame so that the main clamp and the auxiliary clamp can rotate at a certain angle on the U-shaped frame. Then, the swing weight is put on the guide rod, and the handle with the stop block is threaded to the guide rod.
[0015] Then the primary and secondary clamps in their initial states (e.g.) Figure 1 (As shown) Slowly insert the tool into the damaged idler roller bearing and continue inserting it through the hole in the middle of the bearing. Then, rotate the adjusting nut with the tool. When the nut rotates, it drives the screw to rotate, causing the rear ends of the main clamp and the auxiliary clamp to move closer together. When the rear ends of the main clamp and the auxiliary clamp move closer together, the front ends of the main clamp and the auxiliary clamp move further apart, so that the hooks of the main clamp and the auxiliary clamp open to both sides of the bearing until the two hooks tightly hook the two sides of the bearing.
[0016] Then, grasp the handle. Since the outer ring of the handle is fixed with anti-slip strips, it can increase the stability of the grip. Pull the hammer back along the guide rod and hit the stop. The impact force generated is transmitted to the bearing through the U-shaped frame, main clamp and auxiliary clamp. Then continue to push and pull the hammer back and forth to hit it multiple times, gradually removing the bearing and seals from the idler roller bearing seat. Pay attention to the force during the operation. Since the bearing in the idler roller bearing seat is generally not very tight, do not use too much force to prevent people from falling or causing unnecessary damage to the equipment.
[0017] This utility model has the following beneficial effects:
[0018] In this invention, by adjusting the components, the opening angles of the main clamp and the auxiliary clamp can be easily and flexibly adjusted according to the size and position of the bearing in the roller bearing housing, so that the hook foot can accurately reach and hook the bearing, improving the versatility and ease of operation of the extractor, and ensuring the smooth progress of bearing removal operations.
[0019] In this invention, by setting up a removal component, the sliding hammer can be used to strike the stop block along the guide rod to generate impact force, and the force can be transmitted to the bearing in conjunction with the adjustment component to achieve removal.
[0020] This invention combines the adjustment component with the removal component, which avoids secondary damage to the bearing housing and other materials during the removal process, and allows for the smooth removal and replacement of damaged bearings and seals. This greatly improves the repair efficiency and reuse rate of used idlers, and effectively reduces the cost of using idlers. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the idler roller bearing remover proposed in this utility model;
[0022] Figure 2 This is a schematic diagram showing the partial rotation and enlarged structure of the idler roller bearing remover proposed in this utility model.
[0023] Figure 3 This is a schematic diagram showing the overall disassembly and partial enlargement of the idler roller bearing remover proposed in this utility model.
[0024] Figure 4 This is a schematic diagram showing the separation of the handle and guide rod of the idler roller bearing remover proposed in this utility model, and a partially enlarged structural diagram.
[0025] In the diagram: 1. Main clamp; 2. Secondary clamp; 201. Strip hole; 3. Hook foot; 4. Screw; 5. Adjusting nut; 6. Limit block; 7. U-shaped frame; 8. Guide rod; 9. Swinging weight; 10. Handle; 11. Stop block; 12. Anti-slip protrusions; 13. Bolt. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Example 1
[0028] Reference Figure 1-4 Extractor, comprising:
[0029] The components include main clamp 1, auxiliary clamp 2, adjustment assembly, and removal assembly. These components work together to remove the idler roller bearing.
[0030] The main clamp 1 and the auxiliary clamp 2 are connected by a hinge, and they can rotate relative to each other to change the opening angle. On the side of the main clamp 1 and the auxiliary clamp 2 that are far apart, there are hook feet 3 respectively, and the two hook feet 3 are at a 90-degree angle to the main clamp 1 and the auxiliary clamp 2 respectively, so that the hook feet 3 can firmly hook the bearing when the bearing is removed, and prevent the bearing from slipping off during operation.
[0031] The adjustment assembly is used to adjust the opening angle of the main clamp 1 and the auxiliary clamp 2. It includes a screw 4 threaded to the rear end of the main clamp 1. One end of the screw 4 is fixedly fitted with an adjusting nut 5. The operator can rotate the adjusting nut 5 to rotate the screw 4. A slotted hole 201 is provided on one side of the auxiliary clamp 2. The slotted hole 201 allows the other end of the screw 4 to move left and right within the slotted hole 201 when the screw 4 is rotated to adjust the opening angle of the main clamp 1 and the auxiliary clamp 2, increasing the range of motion of the other end of the screw 4 and facilitating better adjustment of the opening angle of the main clamp 1 and the auxiliary clamp 2. The other end of the screw 4 passes through the slotted hole 201. The strip hole 201 extends into the outer side of the auxiliary clamp 2. A limiting block 6 is fixedly installed at one end of the screw 4 that extends to the outer side of the auxiliary clamp 2. The limiting block 6 can prevent the screw 4 from falling off the auxiliary clamp 2. When the adjusting nut 5 is rotated, the screw 4 rotates accordingly. Since the screw 4 is threadedly connected to the main clamp 1 and is restricted by the limiting block 6, the rear ends of the main clamp 1 and the auxiliary clamp 2 will move towards each other or away from each other, thereby realizing the adjustment of the opening angle. When the rear ends of the main clamp 1 and the auxiliary clamp 2 are close together, the front end opens and the hook foot 3 unfolds accordingly. When the rear ends are away from each other, the front end closes and the hook foot 3 tightens.
[0032] The removal and adjustment components work together to remove the bearing. The components include a U-shaped frame 7, a main clamp 1 and a secondary clamp 2 housed within the U-shaped frame 7, connected by a single bolt 13. The bolt 13 is threaded to the bottom of the U-shaped frame 7, allowing the main clamp 1 and secondary clamp 2 to rotate within the U-shaped frame 7 at a certain angle to accommodate different insertion and adjustment angles. A guide rod 8 is fixedly mounted on the rear side of the U-shaped frame 7 to guide the sliding of the movable hammer 9. The movable hammer 9 slides freely on the outside of the guide rod 8 to generate impact force. A stop block 11 is fitted onto the outside of the guide rod 8 to withstand the impact force of the movable hammer 9. A handle 10 is fixedly mounted on the rear side of the stop block 11 and threadedly connected to the guide rod 8, facilitating adjustment of the stop block 11's position on the guide rod 8.
[0033] This application can be used in the field of roller bearing remover technology, or in other fields applicable to this application.
[0034] Example 2
[0035] Based on Embodiment 1, Embodiment 2 further includes: a roller bearing extractor, which is applied to the field of roller bearing extractor technology. The outer side of the swing hammer 9 is covered with a rubber sleeve, and the outer side of the rubber sleeve is fixedly provided with a plurality of evenly distributed anti-slip protrusions 12. This can not only increase the friction when the operator holds the swing hammer 9, but also play a certain buffering role.
[0036] The outer ring of the grip 10 is fixed with anti-slip strips, which further enhances the stability of the grip and prevents slippage during operation.
[0037] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A roller bearing remover, characterized in that, include: A main clamp (1) is provided with a secondary clamp (2) hinged to one side of the main clamp (1), and hook feet (3) are provided on the side of the secondary clamp (2) of the main clamp (1) that is far away from each other. The main clamp (1) and the auxiliary clamp (2) are provided with the same adjustment component, which is used to adjust the opening angle of the main clamp (1) and the auxiliary clamp (2). The main clamp (1) and the auxiliary clamp (2) are also provided with a take-out component, which is used to cooperate with the adjustment component to take out the bearing.
2. The idler roller bearing extractor according to claim 1, characterized in that, The adjustment assembly includes a screw (4) threaded to the rear end of the main clamp (1). One end of the screw (4) is fixedly provided with an adjustment nut (5). A strip hole (201) is opened on one side of the auxiliary clamp (2). The other end of the screw (4) passes through the strip hole (201) and extends to the outside of the auxiliary clamp (2). A limit block (6) is fixedly provided at the end of the screw (4) extending to the outside of the auxiliary clamp (2).
3. The idler roller bearing extractor according to claim 1, characterized in that, The extraction assembly includes a U-shaped frame (7), the main clamp (1) and the auxiliary clamp (2) are disposed inside the U-shaped frame (7), and the same bolt (13) passes through the U-shaped frame (7), the main clamp (1) and the auxiliary clamp (2). The bottom end of the bolt (13) is threaded to one side of the U-shaped frame (7). A guide rod (8) is fixedly disposed on the rear side of the U-shaped frame (7), and a sliding hammer (9) is slidably disposed on the outside of the guide rod (8). A stop block (11) is sleeved on the outside of the guide rod (8), and a handle (10) is fixedly disposed on the rear side of the stop block (11). The handle (10) is threadedly connected to the guide rod (8).
4. The idler roller bearing extractor according to claim 3, characterized in that, The movable hammer (9) is covered with a rubber sleeve, and a plurality of anti-slip protrusions (12) are fixedly arranged on the outside of the rubber sleeve.
5. The idler roller bearing extractor according to claim 3, characterized in that, The outer ring of the grip (10) is fixedly provided with anti-slip strips.
6. The idler roller bearing extractor according to claim 1, characterized in that, The two hooks (3) are at a 90-degree angle to the main clamp (1) and the auxiliary clamp (2), respectively.