Structure for preventing snap ring from falling off and loosening
By designing an anti-locking ring on the snap ring of the cold rolling mill, the combination of fastening bolts, anti-locking nuts and opening pins is used to solve the problem that the snap ring does not loosen or slides out during work, and quickly loosens during disassembly, achieving a more efficient and accurate disassembly and assembly process.
Patent Information
- Application Number
- CN202421927400.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The prior art is difficult to realize the problem that the clamp ring does not loosen or slides out during work during cold rolling mill operation, but is quickly loosened during disassembly.
A structure for preventing the clamping ring from falling off is designed, including setting a fastening bolt at the opening of the clamping ring body, inserting the bolt bolt into the opening of the clamping ring body, and installing a locking nut in the extension section, inserting the opening pin into the mounting hole and elastically bending to both sides to form a bending limit.
It improves the efficiency and accuracy of the bearing seat, eliminates human errors, and prevents the clamping ring from falling off.
Smart Images
Figure CN222991958U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rolling mill bearing maintenance, and particularly relates to an anti-loosening structure for preventing snap rings from falling off. Background Art
[0002] During the operation of a cold rolling mill, due to high quality requirements, the rolls are replaced very frequently. A snap ring device is used to connect the roll and the bearing housing mounted on the roll. The snap ring screws must not loosen or slip out during operation, and at the same time, the screws must be quickly loosened and disassembled during disassembly. This pair of contradictions has existed for a long time.
[0003] In order to solve the contradictions in the prior art, an anti-loosening structure for preventing snap rings from falling off is needed. Summary of the Utility Model
[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an anti-loosening structure for preventing snap rings from falling off.
[0005] In order to achieve the purpose of the utility model, the technical solution adopted is:
[0006] An anti-loosening structure for preventing snap rings from falling off, comprising:
[0007] A fastening bolt arranged at the opening of the snap ring body;
[0008] The bolt body of the fastening bolt is inserted into the opening of the snap ring body, and at least one lock nut is arranged on the extension section of the bolt body of the fastening bolt extending out of the opening of the snap ring body;
[0009] The extension section passes through the inner diameter of the lock nut and then extends out to form an extension section installation end, and at least one installation hole is opened on the extension section installation end;
[0010] A split pin is inserted into the installation hole;
[0011] The part of the split pin extending out of the installation hole at the end is elastically bent to both sides to form a bending limiting part.
[0012] In a preferred embodiment of the utility model, the length of the split pin is greater than the diameter of the bolt body.
[0013] In a preferred embodiment of the utility model, the diameter range of the bolt body is 19 - 15 mm.
[0014] In a preferred embodiment of the utility model, the bending amount of the elastic bending to both sides is 30 - 50°.
[0015] In a preferred embodiment of the utility model, the bending amount of the elastic bending to both sides is 45°.
[0016] In a preferred embodiment of the present utility model, the locknut comprises a first locknut and a second locknut arranged vertically.
[0017] In a preferred embodiment of the present utility model, the part of the split pin extending out of the mounting hole at its end elastically bends towards the horizontal sides to form a first bending limiting part and a second bending limiting part.
[0018] The beneficial effects of the present utility model are as follows:
[0019] By adopting the anti-loosening structure for preventing the snap ring from falling off of the present utility model, the disassembly and assembly efficiency of the bearing seat is higher, the accuracy is better, and most of the human errors are eliminated. After on-site application, the situation of the snap ring falling off has not occurred again. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a structural schematic diagram of the present utility model Figure 1 .
[0021] Figure 2 is a structural schematic diagram of the present utility model Figure 2 .
[0022] Figure 3 is a structural schematic diagram of the present utility model Figure 3 . DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the scope of the present utility model. In addition, in the following structures, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.
[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description. Instead of indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] As Figures 1-3 shown, an anti-loosening structure for preventing the snap ring from falling off includes a fastening bolt 110 provided at the opening 101 of the snap ring body 100.
[0026] The bolt body 111 of the fastening bolt 110 is inserted into the opening 101 of the snap ring body 100, and a locknut 200 is provided at the extension section 112 where the bolt body 111 of the fastening bolt 110 extends out of the opening 101 of the snap ring body 100.
[0027] One or more locknuts 200 can be provided as needed. For example, the locknuts 200 are the first locknut 210 and the second locknut 220 arranged vertically.
[0028] The extension section 112 passes through the inner diameter of the locknut 200 and then extends out to form an extension section mounting end 113. A mounting hole 114 is formed in the extension section mounting end 113, and a split pin 300 is inserted into the mounting hole 114.
[0029] The length of the split pin 300 is greater than the diameter of the bolt body 111. The diameter range of the bolt body 111 is 19 - 15 mm.
[0030] The part of the end of the split pin 300 that extends out of the mounting hole 114 elastically bends to both sides to form a bending limiting part 310. The elastic bending amount on both sides is 30 - 50°. In the embodiment, the elastic bending amount on both sides is 45°.
[0031] Specifically, as needed, the part of the end of the split pin 300 that extends out of the mounting hole 114 elastically bends to both sides to form a first bending limiting part 311 and a second bending limiting part 312. The first bending limiting part 311 and the second bending limiting part 312 bend in opposite horizontal directions.
[0032] Due to the above structure, the working principle of the present utility model is as follows:
[0033] A mounting hole 114 is drilled in the split pin 300. Specifically, a mark is made 4 mm from the edge of the locknut 200 towards the extension section mounting end 113. This is the center point for drilling the mounting hole 114, and this distance shall not be greater than 6 mm.
[0034] The part of the end of the split pin 300 that extends out of the mounting hole 114 elastically bends to both horizontal sides to form a bending limiting part 310. The elastic bending amount on both sides is 30 - 50°. In the embodiment, the elastic bending amount on both sides is 45°. Figure 3 Among them is the cross-section, and the horizontal bending direction is not shown.
[0035] During disassembly, directly use a pair of needle-nose pliers to clamp the non-bent end of the split pin and then take it out (it can also be processed by clamping the bent part into a non-bent state on the other side), and loosen the locknut 200 and the snap ring.
[0036] The above shows and describes the basic principle, main features and advantages of the utility model.
[0037] Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A structure for preventing a snap ring from falling off and loosening, characterized in that: include: A fastening bolt disposed at the opening of the clamping ring body; The bolt body of the fastening bolt is inserted into the opening of the clamping ring body, and at least one anti-loosening nut is arranged on the extension section where the bolt body of the fastening bolt extends out of the opening of the clamping ring body; The extension section passes through the inner diameter of the locking nut and then extends out to form an extension section mounting end, and at least one mounting hole is opened on the extension section mounting end; inserting a cotter pin into the mounting hole; The part of the end of the cotter pin extending out of the mounting hole is elastically bent toward both sides to form a bending limit portion.
2. A snap ring anti-falling and anti-loosening structure as claimed in claim 1, characterized in that: The length of the cotter pin is greater than the diameter of the bolt body.
3. A structure for preventing snap rings from falling off and loosening as claimed in claim 2, characterized in that: The diameter of the bolt body ranges from 19 to 15 mm.
4. The anti-falling and anti-loosening structure of the snap ring according to claim 1, characterized in that: The bending amount of the elastic bending on both sides is 30-50°.
5. A structure for preventing snap rings from falling off and loosening as claimed in claim 1 or 4, characterized in that: The bending amount of the elastic bending on both sides is 45°.
6. The anti-falling and anti-loosening structure of the snap ring according to claim 1, characterized in that: The anti-loosening nut is a first anti-loosening nut and a second anti-loosening nut which are arranged up and down.
7. The anti-falling and anti-loosening structure of the snap ring according to claim 1, characterized in that: The part of the end of the cotter pin extending out of the mounting hole is elastically bent toward two horizontal sides to form a first bending limit portion and a second bending limit portion.