Metal retainer dismounting device
By designing a metal cage disassembly device, which uses a pin and a return spring to break the rivet points, the problems of low disassembly efficiency and damage in the prior art are solved, achieving efficient disassembly and reducing damage to bearing components.
Patent Information
- Application Number
- CN202422072806.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Existing metal cages have low disassembly efficiency and are prone to damaging the inner and outer rings and steel balls of the bearing during disassembly.
A metal cage disassembly device was designed, including an upper mold base and a lower mold base, a ball seat, an ejector pin mounting base and an ejector pin limiting plate. The device destroys the rivet points on the cage by passing the ejector pin through the ejector pin hole, and the rivet points are destroyed and disassembled by using a return spring and a guide pressure rod.
It improves the efficiency of disassembling the metal cage and reduces damage to the bearing's inner and outer rings and steel balls.
Smart Images
Figure CN223734291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing technology, specifically to a metal cage disassembly device. Background Technology
[0002] The bearing consists of an outer ring and an inner ring, with a cage between them to hold the steel balls. Existing metal cages are made of two halves of the cage joined together, with the two halves riveted together at the ball pocket holes. If a defective product needs to be reworked, the entire bearing needs to be disassembled. Since there are many riveting points on the cage, manual disassembly is inefficient. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a metal cage disassembly device to address the shortcomings of the prior art.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A metal retainer disassembly device includes an upper mold base and a lower mold base. Ball-shaped supports are connected to the surfaces of the upper and lower mold bases. Ball-shaped supports have ball-shaped holes. An ejector pin mounting base and an ejector pin limiting plate are provided above the upper mold base. The ejector pin mounting base has a ring of ejector pin mounting holes. An ejector pin is installed in the ejector pin mounting holes and passes through the ejector pin limiting plate, which fixes the ejector pin. Ejector pin holes are provided on both the upper mold base and the ball-shaped supports on its surface, as well as on the lower mold base and the ball-shaped supports on its surface. The ejector pins are inserted into the ejector pin holes. A return spring is provided between the ejector pin mounting base and the upper mold base. An avoidance hole is provided on the ejector pin limiting plate to avoid the return spring.
[0006] Furthermore, guide posts are connected to both sides of the upper mold base, and guide holes are provided on the lower mold base.
[0007] Furthermore, the periphery of the ejector pin limiting plate is connected to the ejector pin mounting base by screws, and the ejector pin has a shoulder machined on it, with the ejector pin limiting plate blocking the shoulder of the ejector pin.
[0008] Furthermore, the pin holes are evenly distributed between the ball-shaped holes.
[0009] Furthermore, the ejector pin mounting base is machined with a guide rod mounting hole, and a guide rod is connected inside the guide rod mounting hole; the upper mold base is machined with a guide rod hole.
[0010] Furthermore, the reset spring is sleeved on the outside of the guide rod.
[0011] Compared with the prior art, the metal cage disassembly device of this utility model breaks the riveting points on the cage by using a pin, thereby improving the disassembly efficiency of the metal cage and reducing the damage to the inner and outer rings and steel balls of the bearing during the disassembly of the metal cage. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the connection between the upper mold base and the ball-shaped support base of this utility model;
[0014] Figure 3 This is a schematic diagram of the connection between the lower mold base and the ball seat of this utility model;
[0015] Figure 4 This is a schematic diagram of the connection between the ejector pin and the ejector pin mounting base of this utility model;
[0016] Among them, 1. Upper mold base, 2. Lower mold base, 3. Ball bearing seat, 4. Ball bearing hole, 5. Guide post, 6. Guide hole, 7. Ejector pin mounting seat, 8. Ejector pin limiting plate, 9. Ejector pin, 10. Shoulder, 11. Ejector pin hole, 12. Return spring, 13. Guide pressure rod, 14. Guide pressure rod hole. Detailed Implementation
[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below.
[0018] like Figures 1-4 As shown, a metal cage disassembly device includes an upper mold base 1 and a lower mold base 2. Ball holders 3 are connected to the surfaces of the upper mold base 1 and the lower mold base 2. Ball holders 3 have ball holder holes 4. When the upper mold base 1 and the lower mold base 2 are brought closer together, the ball holder holes 4 on the ball holders 3 hold the steel balls on the bearing cage. Guide posts 5 are connected to both sides of the upper mold base 1. Guide holes 6 are provided on the lower mold base 2. When the upper mold base 1 and the lower mold base 2 are brought closer together, the guide posts 5 are inserted into the guide holes 6.
[0019] The upper mold base 1 is provided with an ejector pin mounting seat 7 and an ejector pin limiting plate 8. The ejector pin mounting seat 7 is provided with a ring of ejector pin mounting holes, and an ejector pin 9 is provided in the ejector pin mounting holes. The ejector pin 9 passes through the ejector pin limiting plate 8, and the ejector pin limiting plate 8 fixes the ejector pin 9. In this embodiment, the periphery of the ejector pin limiting plate 8 is connected to the ejector pin mounting seat 7 by screws. The ejector pin 9 is machined with a shoulder 10. The ejector pin limiting plate 8 blocks the shoulder 10 of the ejector pin and fixes the ejector pin 9. The upper mold base 1 and the ball seat 3 on its surface and the lower mold base 2 and the ball seat 3 on its surface are all provided with ejector pin holes 11. The ejector pin 9 passes into the ejector pin hole 11.
[0020] In this embodiment, the ejector pin holes 11 are evenly distributed between the ball pocket holes 4, corresponding to the riveting points on the retainer. The ejector pin 9 passes through the ejector pin holes 11 on the upper mold base 1 and the ball pocket seat 3 on its surface. During disassembly, the ejector pin 7 destroys the riveting points on the retainer through the ejector pin holes 11. A return spring 12 is provided between the ejector pin mounting base 7 and the upper mold base 2. An avoidance hole is provided on the ejector pin limiting plate 8 to avoid the return spring 12.
[0021] The ejector pin mounting base 7 is machined with a guide rod mounting hole, and a guide rod 13 is connected in the guide rod mounting hole. The upper mold base 1 is machined with a guide rod hole 14. The reset spring 12 is sleeved on the outside of the guide rod 13. During disassembly, the guide rod 13 is inserted into the guide rod hole 14.
[0022] In use, the bearing with the dust cover removed is placed between the upper mold base 1 and the lower mold base 2, the metal cage is clamped in the corresponding ball pocket position, the ball pocket seat clamps and limits it, and pressure is applied to the ejector pin 9 through the ejector pin mounting seat 7 to destroy the rivet and remove the metal cage.
[0023] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.
Claims
1. A metal cage dismounting device, characterized by: The upper die holder and the lower die holder are connected with a ball pocket seat, the ball pocket seat is provided with a ball pocket hole, the upper die holder is provided with a needle mounting seat and a needle limiting plate, the needle mounting seat is provided with a circle of needle mounting holes, the needle mounting holes are provided with needles, the needle passes through the needle limiting plate, the needle limiting plate fixes the needle, the upper die holder and the ball pocket seat are provided with needle holes, the needle passes into the needle hole, the needle mounting seat and the upper die holder are provided with a reset spring, the needle limiting plate is provided with an avoiding hole for avoiding the reset spring.
2. A metal cage dismounting device according to claim 1, characterized in that: The upper die holder is connected with guide columns, the lower die holder is provided with guide holes.
3. A metal cage dismounting device according to claim 1, characterized in that: The needle limiting plate is connected with the needle mounting seat through screws, the needle is provided with a convex shoulder, the needle limiting plate stops the convex shoulder of the needle.
4. The metal cage dismounting device according to claim 1, characterized in that: The needle holes are uniformly distributed between the ball pocket holes.
5. The metal cage dismounting device according to claim 1, characterized in that: The needle mounting seat is provided with guide pressure rod mounting holes, the guide pressure rod mounting holes are connected with guide pressure rods, the upper die holder is provided with guide pressure rod holes.
6. A metal cage dismounting device according to claim 5, characterized in that: The reset spring is sleeved outside the guide pressure rod.