Dustproof double-row guide rail bearing

Abstract

The utility model relates to the field of bearings, in particular to a dustproof double-row guide rail bearing, which comprises a bearing outer ring, a bearing inner ring and a dustproof plate, a ball is arranged between the bearing outer ring and the bearing inner ring, a retainer is arranged on the surface of the ball, an outer ring clamping groove is arranged on the inner surface of the bearing outer ring, and the dustproof plate is arranged in the outer ring clamping groove. An inner ring clamping groove is formed in the surface of the bearing inner ring, a clamping outer ring is arranged on the outer surface of the dustproof plate, a clamping inner ring is arranged on the inner surface of the dustproof plate, sealing grooves are formed in the outer ring clamping groove and the inner ring clamping groove correspondingly, and sealing rings are fixedly installed on the clamping outer ring and the clamping inner ring correspondingly. According to the double-row guide rail bearing, the clamping outer ring and the clamping inner ring are clamped into the outer ring clamping groove and the inner ring clamping groove respectively, the dustproof plate can be conveniently fixed, the function of preventing dust particles from entering the bearing is achieved, the sealing ring can be attached to the sealing groove to improve the sealing performance, the dustproof performance of the double-row guide rail bearing can be improved, and the service life of the double-row guide rail bearing is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bearings, and in particular to a dustproof double-row guide rail bearing. Background Technology

[0002] Double-row guide rail bearings are a type of bearing specifically designed for precision motion miniature linear guides. They offer advantages such as low noise, comfortable and vibration-free operation, low torque, precise motion, long lifespan, low cost, simple debugging and installation, and convenient maintenance. These bearings typically feature a double-row steel ball structure. Applications of double-row guide rail bearings include precision motion equipment such as guide rails and sliders, where they play a crucial role in applications requiring high-precision rotation and bidirectional movement.

[0003] Currently, double-row guide rail bearings have a wide operating range, and the working environment may be accompanied by a large amount of dust particles. Due to the limitations of the protective structure of double-row guide rail bearings, it is difficult to effectively block dust particles, which leads to bearing wear and affects the service life of double-row guide rail bearings.

[0004] Therefore, the protective structure of the aforementioned double-row guide bearing is insufficient to effectively block dust particles, which leads to bearing wear and affects the service life of the double-row guide bearing. A dustproof double-row guide bearing can be designed. Utility Model Content

[0005] To overcome the problem that the protective structure of double-row guide rail bearings is not effective in blocking dust particles, which leads to bearing wear and affects the service life of double-row guide rail bearings.

[0006] The technical solution of this utility model is as follows: a dustproof double-row guide rail bearing, including an outer ring, an inner ring, and a dustproof plate. Balls are arranged between the outer ring and the inner ring, and a cage is provided on the surface of the ball. An outer ring engagement groove is formed on the inner surface of the outer ring, and an inner ring engagement groove is formed on the surface of the inner ring. An engagement outer ring is provided on the outer surface of the dustproof plate, and an engagement inner ring is provided on the inner surface of the dustproof plate. Sealing grooves are formed inside both the outer ring engagement groove and the inner ring engagement groove. Sealing rings are fixedly installed on both the engagement outer ring and the engagement inner ring.

[0007] Preferably, the outer and inner rings, which have a certain degree of elasticity and support, can be respectively engaged in the outer ring engagement groove and the inner ring engagement groove, which facilitates the fixing of the dustproof plate. The dustproof plate can be placed on the outside of the bearing to shield the bearing and prevent dust particles from entering the bearing. The sealing ring can fit into the sealing groove to improve the sealing performance of the dustproof plate.

[0008] Preferably, the outer ring of the bearing has a V-shaped cross-section, and the balls are arranged in a ring array with two rows of balls.

[0009] As a preferred option, the dustproof plate is made of nitrile rubber and has a ring-shaped structure design.

[0010] Preferably, the outer locking ring is made of polyurethane, and the outer locking ring is engaged with the outer ring locking groove.

[0011] Preferably, the inner ring is made of polyurethane, and the inner ring engages with the inner ring engagement groove.

[0012] Preferably, the sealing ring is made of nitrile rubber, and the sealing ring is engaged with the sealing groove.

[0013] Preferably, the sealing ring has an elastic cavity inside, and the elastic cavities are distributed in a ring array.

[0014] The beneficial effects of this utility model are:

[0015] This dustproof double-row guide bearing utilizes a locking mechanism where the outer and inner rings engage in their respective locking grooves. This facilitates the fixation of the dustproof plate, preventing dust particles from entering the bearing. The elastic cavity expands the deformation capacity of the sealing ring, and the surrounding space allows for easy contraction during engagement of the outer and inner rings, improving ease of insertion. After engagement, the seals fit snugly against the grooves, enhancing the dustproof performance of the double-row guide bearing and extending its service life. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the dustproof double-row guide rail bearing of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the cage of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the sealing groove of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the dustproof plate of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Bearing outer ring; 2. Bearing inner ring; 3. Dust cover; 4. Ball; 5. Cage; 6. Outer ring engagement groove; 7. Inner ring engagement groove; 8. Engaging outer ring; 9. Engaging inner ring; 10. Sealing groove; 11. Sealing ring; 12. Elastic cavity. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4This utility model provides an embodiment: a dustproof double-row guide rail bearing, including an outer bearing ring 1, an inner bearing ring 2, and a dustproof plate 3. Balls 4 are disposed between the outer bearing ring 1 and the inner bearing ring 2. A cage 5 is disposed on the surface of the ball 4. An outer ring engagement groove 6 is formed on the inner surface of the outer bearing ring 1, and an inner ring engagement groove 7 is formed on the surface of the inner bearing ring 2. An outer ring engagement groove 8 is formed on the outer surface of the dustproof plate 3, and an inner ring engagement groove 9 is formed on the inner surface of the dustproof plate 3. Sealing grooves 10 are formed inside both the outer ring engagement groove 6 and the inner ring engagement groove 7. Sealing rings 11 are fixedly installed on both the outer ring engagement groove 8 and the inner ring engagement groove 9.

[0023] Please see Figures 1-4 In this embodiment, the outer ring 1 of the bearing has a V-shaped cross-section, the balls 4 are arranged in a ring array with two rows, the dustproof plate 3 is made of nitrile rubber and has a ring structure, the outer ring 8 is made of polyurethane and is engaged with the outer ring engagement groove 6, the inner ring 9 is made of polyurethane and is engaged with the inner ring engagement groove 7. The polyurethane material of the outer ring 8 and the inner ring 9 provides elasticity and support, and the outer ring 8 is engaged in the outer ring engagement groove 6, while the inner ring 9 is engaged in the inner ring engagement groove 7, which facilitates the fixing of the dustproof plate and achieves the function of preventing dust particles from entering the bearing.

[0024] Please see Figures 3-4 In this embodiment, the sealing ring 11 is made of nitrile rubber. The sealing ring 11 is engaged with the sealing groove 10. An elastic cavity 12 is provided inside the sealing ring 11. The elastic cavities 12 are distributed in a ring array. The elastic cavity 12 expands the deformation capacity of the sealing ring 11. In conjunction with the deformation space around the sealing ring 11, it is convenient to shrink when engaging the outer ring 8 and the inner ring 9 of the sealing ring 11, which improves the ease of engagement. After engagement, it fits tightly with the sealing groove 10, which helps to improve the dustproof performance of the double-row guide bearing and extend its service life.

[0025] During operation, the outer ring 8 and inner ring 9 are made of polyurethane, which has a certain degree of elasticity and support. The outer ring 8 is engaged in the outer ring engagement groove 6, and the inner ring 9 is engaged in the inner ring engagement groove 7, which facilitates the fixation of the dustproof plate and achieves the function of preventing dust particles from entering the bearing. The elastic cavity 12 expands the deformation capacity of the sealing ring 11, and with the deformation space around the sealing ring 11, it can be contracted when the outer ring 8 and inner ring 9 are engaged, which improves the ease of engagement and ensures that the sealing ring 11 fits tightly into the sealing groove 10 after engagement.

[0026] Through the above steps, the outer ring 8 and the inner ring 9 are respectively engaged in the outer ring engagement groove 6 and the inner ring engagement groove 7, which facilitates the fixing of the dustproof plate and makes it easy to set it on the outside of the bearing to form a shield for the bearing. This solves the problem that the protective structure of the double-row guide rail bearing is difficult to effectively block dust particles, which causes bearing wear and affects the service life of the double-row guide rail bearing.

Claims

1. A dustproof double-row guide bearing, comprising a bearing outer ring (1), characterized in that: It also includes an inner bearing ring (2) and a dustproof plate (3). A ball (4) is provided between the outer bearing ring (1) and the inner bearing ring (2). A cage (5) is provided on the surface of the ball (4). An outer ring engagement groove (6) is provided on the inner surface of the outer bearing ring (1). An inner ring engagement groove (7) is provided on the surface of the inner bearing ring (2). An outer ring engagement groove (8) is provided on the outer surface of the dustproof plate (3). An inner ring engagement groove (9) is provided on the inner surface of the dustproof plate (3). A sealing groove (10) is provided inside both the outer ring engagement groove (6) and the inner ring engagement groove (7). A sealing ring (11) is fixedly installed on both the outer ring engagement groove (8) and the inner ring engagement groove (9).

2. The dustproof double-row guide bearing according to claim 1, characterized in that: The outer ring (1) of the bearing has a V-shaped cross-section and the balls (4) are arranged in a ring array with two rows of balls (4).

3. The dustproof double-row guide bearing according to claim 1, characterized in that: The dustproof plate (3) is made of nitrile rubber and has a ring structure design.

4. A dustproof double-row guide bearing according to claim 1, characterized in that: The outer ring (8) is made of polyurethane and is engaged with the outer ring engagement groove (6).

5. A dustproof double-row guide bearing according to claim 1, characterized in that: The inner ring (9) is made of polyurethane and is engaged with the inner ring engagement groove (7).

6. A dustproof double-row guide bearing according to claim 1, characterized in that: The sealing ring (11) is made of nitrile rubber and is engaged with the sealing groove (10).

7. A dustproof double-row guide bearing according to claim 6, characterized in that: The sealing ring (11) has an elastic cavity (12) inside, and the elastic cavities (12) are distributed in a ring array.

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