Outer diameter double-stop groove knurling sleeve ring
By designing a double-groove knurled bearing ring with an outer diameter, and employing a stop groove, buffer layer, positioning groove, and knurled structure, the problem of insufficient stopping and buffering performance is solved, thereby improving the stability and smooth operation of the bearing ring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIXI GUANGZHENG MASCH MFG CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-07-21
AI Technical Summary
Existing bearing rings have insufficient stopping and buffering performance during use, are prone to wear due to rigid contact, have poor anti-slip performance, leading to increased assembly difficulty and unstable connection.
Design a double-groove knurled ferrule with an outer diameter, including a stop groove on the outer side of the ferrule housing, an inner buffer layer and buffer groove, a positioning groove inside the ferrule housing, and knurling and an elastic layer on the outer side of the housing. The multi-level buffer structure and enhanced friction improve stability and anti-slip performance.
It improves the stability and impact resistance of the stop structure, ensures the coaxiality and positional accuracy of the shaft and the raceway, reduces transmission deviation, lowers noise, and improves operational smoothness.
Smart Images
Figure CN224533268U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing ring technology, specifically a double-groove knurled bearing ring with an outer diameter. Background Technology
[0002] Bearing rings are one of the core components of rolling bearings. They are annular parts with one or more raceways, and are divided into inner rings and outer rings. They are mainly used to support rolling elements and transmit loads. Bearing rings are annular structural components with raceways in rolling bearings. Their core functions include supporting rolling elements, guiding the movement trajectory of rolling elements through raceways, ensuring smooth operation of the bearing, bearing radial, axial, or combined loads from the shaft or bearing housing, and evenly distributing the force to the rolling elements. They also provide positioning; the inner ring fits tightly with the shaft and rotates synchronously, while the outer ring is fixed in the bearing housing, together maintaining the alignment of the mechanical system.
[0003] While existing bearing rings meet users' needs to a certain extent, they still have certain shortcomings during use. Specific problems include: insufficient stopping and cushioning performance; most rings rely solely on a single stopping structure for positioning, lacking effective cushioning design. When equipment operates and generates vibration or impact, the stopping structure is prone to wear due to rigid contact, leading to stopping failure and affecting the stability of component connections. Insufficient anti-slip performance; the outer surface of the ring is mostly smooth, making it prone to slippage due to insufficient friction when mating with external components or during manual installation. This not only increases assembly difficulty but may also cause the ring to shift during use. Based on these issues, this invention designs a double-groove knurled bearing ring to solve the above problems. Utility Model Content
[0004] This utility model provides a double-groove knurled collar with an outer diameter, which can effectively solve the problem of insufficient stopping and buffering performance mentioned in the background art. Most collars rely on a single stopping structure for positioning and lack effective buffering design. When the equipment operates and generates vibration or impact, the stopping structure is prone to wear due to rigid contact, resulting in stopping failure, affecting the stability of component connection, and having insufficient anti-slip performance. The outer side of the collar is mostly a smooth surface, which is prone to slippage due to insufficient friction when mating with external components or during manual installation. This not only increases the assembly difficulty but may also cause the collar to shift during use.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a double-groove knurled collar with an outer diameter, comprising a collar housing, a stop groove being provided at one end of the outer side of the collar housing, a placement groove being provided inside the collar housing, positioning grooves being provided at both ends of the placement groove inside the collar housing, and knurling being provided at the other end of the outer side of the collar housing.
[0006] A double-groove knurled ring with an outer diameter, preferably, has a buffer layer inside the stop groove, and buffer grooves are opened at both ends inside the buffer layer, and the two buffer grooves are connected by multiple connecting grooves.
[0007] A double-groove knurled ring with an outer diameter, preferably wherein the outer side of the knurling is coated with an elastic layer.
[0008] A double-groove knurled ring with an outer diameter, preferably wherein the inner diameter of the buffer layer located outside the stop groove is smaller than the inner diameter located inside the stop groove.
[0009] A double-groove knurled bushing with an outer diameter, preferably wherein the buffer layer is made of nitrile rubber and the thickness of the buffer layer is 0.5 mm.
[0010] A double-groove knurled ring with an outer diameter, preferably wherein the knurling is straight knurling or mesh knurling, and the pitch of the knurling is 1.2 mm.
[0011] A double-groove knurled bushing with an outer diameter, preferably wherein the elastic layer is a polyurethane elastic coating and the thickness of the elastic layer is 0.2 mm.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The structure of this utility model is scientific and reasonable, and it is safe and convenient to use: The stop groove opened at one end of the outer side of the collar housing can achieve precise matching with the external stop components to prevent the collar from shifting axially; the buffer layer inside the stop groove and the buffer groove and connecting groove inside the buffer layer constitute a multi-level buffer structure. When the equipment vibrates or is impacted during operation, the buffer groove can absorb the impact force through deformation, and the connecting groove can disperse the stress, avoiding wear of the stop structure due to rigid contact, significantly improving the stop stability and impact resistance, and extending the service life of the stop structure;
[0013] The positioning grooves at both ends of the placement groove inside the collar housing can provide bidirectional positioning for the shaft passing through the placement groove, restrict the axial movement and radial wobble of the shaft, ensure the coaxiality and positional accuracy of the shaft and collar during assembly, reduce transmission deviation caused by inaccurate positioning, and improve the operational stability of the entire mechanical system.
[0014] The knurling on the other end of the outer side of the bearing housing can enhance the positioning accuracy between the bearing housing and the outer ring of the bearing, and reduce the increase in clearance caused by thermal expansion, thereby improving the smoothness of operation and reducing noise. The elastic layer sprayed on the outer side of the knurling can not only further enhance the anti-slip effect, but also play a buffering role when in contact with external parts, reducing friction damage. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the stop groove opening structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the connecting groove structure of this utility model;
[0020] Figure 4 This is the utility model Figure 3 Schematic diagram of the structure of region A in the middle;
[0021] Figure 5 This is the utility model Figure 3 Schematic diagram of the structure of region B in the middle;
[0022] The following are the labels in the diagram: 1. Ring housing; 2. Stop groove; 3. Buffer layer; 4. Buffer groove; 5. Connecting groove; 6. Placement groove; 7. Positioning groove; 8. Knurling; 9. Elastic layer. Detailed Implementation
[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0024] Example: Figure 1-5 As shown, this utility model provides a technical solution: a double-groove knurled collar with an outer diameter, comprising a collar housing 1, a stop groove 2 at one end of the outer side of the collar housing 1, a buffer layer 3 inside the stop groove 2, buffer grooves 4 at both ends of the buffer layer 3, and the two buffer grooves 4 being connected by multiple connecting grooves 5, a placement groove 6 inside the collar housing 1, positioning grooves 7 at both ends of the placement groove 6 inside the collar housing 1, and knurling 8 at the other end of the outer side of the collar housing 1, with an elastic layer 9 sprayed on the outside of the knurling 8.
[0025] The inner diameter of the buffer layer 3, located outside the stop groove 2, is smaller than that of the inner diameter of the stop groove 2. This can further limit the positioning of the collar housing 1 and prevent it from falling off.
[0026] The buffer layer 3 is made of nitrile rubber and has a thickness of 0.5mm. Nitrile rubber has excellent elasticity and oil resistance, which can improve the buffering effect and corrosion resistance, and is suitable for the oil environment in mechanical systems.
[0027] Knurling 8 is either straight knurling or mesh knurling. The pitch of knurling 8 is 1.2mm. Different types of knurling 8 can be adapted to different anti-slip requirements. A specific pitch can ensure the anti-slip effect while avoiding the increased processing difficulty caused by excessively dense knurling 8.
[0028] The elastic layer 9 is a polyurethane elastic coating with a thickness of 0.2mm. Polyurethane material has excellent wear resistance and elasticity. The specific thickness can ensure the protective effect without affecting the anti-slip performance of the knurling 8.
[0029] Place the collar housing 1 in the designated installation position. The collar is initially stopped and positioned by the stop groove 2 on the outside of the collar. At this time, the buffer layer 3 in the stop groove 2 contacts the stop component. The elastic deformation of the buffer layer 3 can enhance the fit and prepare for subsequent impact resistance. When the equipment is running, if vibration or impact occurs, the buffer layer 3 in the stop groove will absorb the impact force through the deformation of the buffer groove 4 and the stress dispersion of the connecting groove 5, thus protecting the stop structure and the collar housing 1.
[0030] The sleeve is placed in the placement groove 6 inside the bearing housing 1. During the process, the positioning grooves 7 at both ends of the placement groove 6 guide and position the shaft to ensure the stability of the sleeve and prevent displacement. The positioning grooves 7 prevent the sleeve from axially moving and radially wobbling. The bearing needs to cooperate with other external components. The knurling 8 and elastic layer 9 on the other side of the outer side of the bearing provide sufficient friction to prevent the bearing from slipping during the cooperation. During manual operation, the elastic layer 9 can also improve the grip comfort and make it easier to adjust the position of the bearing to ensure assembly accuracy. The knurling 8 can enhance the positioning accuracy between the bearing housing and the bearing housing 1 and reduce the increase in clearance caused by thermal expansion, thereby improving the smoothness of operation and reducing noise.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A double-groove knurled collar with an outer diameter, comprising a collar housing (1), characterized in that: The outer end of the collar housing (1) is provided with a stop groove (2), the inside of the collar housing (1) is provided with a placement groove (6), the inside of the collar housing (1) is provided with positioning grooves (7) at both ends of the placement groove (6), and the other end of the outer side of the collar housing (1) is provided with knurling (8).
2. The double-groove knurled collar according to claim 1, characterized in that, The stop groove (2) is provided with a buffer layer (3), and the buffer layer (3) has buffer grooves (4) at both ends. The two buffer grooves (4) are connected by multiple connecting grooves (5).
3. The double-groove knurled collar according to claim 1, characterized in that, The outer side of the knurling (8) is coated with an elastic layer (9).
4. The double-groove knurled collar according to claim 2, characterized in that, The inner diameter of the buffer layer (3) located outside the stop groove (2) is smaller than the inner diameter located inside the stop groove (2).
5. A double-groove knurled collar with outer diameter according to claim 2, characterized in that, The buffer layer (3) is made of nitrile rubber and has a thickness of 0.5 mm.
6. The double-groove knurled collar according to claim 1, characterized in that, The knurling (8) is straight knurling or mesh knurling, and the pitch of the knurling (8) is 1.2 mm.
7. A double-groove knurled collar with outer diameter according to claim 3, characterized in that, The elastic layer (9) is a polyurethane elastic coating with a thickness of 0.2 mm.