Low-speed shock-resistant bearing

Abstract

The utility model provides a low-speed shock-resistant bearing, and belongs to the technical field of bearings. The low-speed shock-resistant bearing solves the problem that parts are easily abraded when an existing bearing is shocked and impacted, the low-speed shock-resistant bearing comprises an inner ring, an outer ring, a retainer and balls, a supporting ring is arranged in the outer ring, a fault-tolerant cavity is formed between the supporting ring and the outer ring, and a plurality of spring rings playing a supporting role are further arranged between the supporting ring and the outer ring. Sealing rings are further arranged on the two sides of the outer ring, a plurality of positioning columns are arranged on the retainer in an inclined mode, push plates are arranged on the positioning columns, the push plates on the two sides of the balls limit the balls, and the bearing has the advantages of being easy and convenient to disassemble and assemble, resistant to shock and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing technical field relates to a low speed bearing, especially in a kind of low-speed anti-vibration bearing. BACKGROUND

[0002] Ball bearing is commonly used in machinery Components, used to reduce the friction of rotating parts, support radial and axial load. Its main components include inner ring, outer ring, ball and cage. Ball is located between inner and outer ring, reduce friction by rolling, while the cage ensures the uniform distribution of ball.

[0003] Mechanical equipment may encounter vibration or impact when running, if bearing cannot effectively deal with these situations, it may cause premature damage. The stability and durability of bearing are reduced when bearing vibration or impact load. Possible reasons include preventing damage to ball and track surface, avoiding cage deformation or breakage, and maintaining lubrication effect, so the anti-vibration of bearing needs to be developed. SUMMARY

[0004] The utility model aims at the above-mentioned problems existing in prior art, provide a kind of low-speed anti-vibration bearing of simple and convenient dismounting.

[0005] The utility model discloses a kind of low-speed anti-vibration bearings, it is characterized in that, including inner ring, outer ring, cage and ball, the outer ring inside is equipped with support ring, it is equipped with fault-tolerant cavity between the support ring and outer ring, and the support ring and outer ring are also equipped with several spring rings with support effect, the outer ring both sides are also equipped with sealing ring, the cage is equipped with several positioning columns, the positioning column is obliquely arranged, and the positioning column is equipped with push plate, the ball both sides of push plate limit ball.

[0006] In the above-mentioned low-speed anti-vibration bearing, the outer ring and support ring are both equipped with spring mounting cavity, and the spring mounting cavity is equipped with spring guide groove.

[0007] In the above-mentioned low-speed anti-vibration bearing, the inner ring and support ring are both equipped with ball raceway, and the outer wall of outer ring is also equipped with support groove embedded with ball raceway.

[0008] In the above-mentioned low-speed anti-vibration bearing, the sealing ring both ends are equipped with limiting convex ring, and the outer ring and support ring are both equipped with clamping groove clamping limiting convex ring.

[0009] In the above-mentioned low-speed anti-vibration bearing, lubricating grease is injected into fault-tolerant cavity.

[0010] In the above-mentioned low-speed anti-vibration bearing, ball limiting cavity is equipped on the push plate.

[0011] Compared with the prior art, the low-speed anti-seismic bearing has the buffering effect by setting the buffering spring ring on the outer ring, using the compression, dumping and deformation capacity of the spring ring under force, and using the elastic reset of the spring to restore the bearing, and cooperating with the push plate limiting ball to make the bearing deform and displace when impacted, reduce the damage of each part, increase the service life of the bearing, and make the ball installation more convenient and increase the convenience of the bearing assembly. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the low-speed anti-seismic bearing.

[0013] Figure 2 is a structural schematic view of the cage of the low-speed anti-seismic bearing.

[0014] Figure 3 is a structural schematic view of the semi-partial view of the low-speed anti-seismic bearing.

[0015] Figure 4 is a structural schematic view of the support ring of the low-speed anti-seismic bearing.

[0016] In the figure, 1 is a cage, 2 is a ball, 3 is an outer ring, 4 is an inner ring, 5 is a ball limiting cavity, 6 is a push plate, 7 is a positioning column, 8 is a clamping groove, 9 is a support ring, 10 is a support groove, 11 is a fault tolerance cavity, 12 is a spring installation cavity, 13 is a sealing ring, 14 is a limiting convex ring, 15 is a ball raceway, 16 is a spring guide groove, and 17 is a spring ring. DETAILED DESCRIPTION

[0017] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0018] As Figure 1 , 2The low-speed anti-seismic bearing shown in the figures 1, 2, 3, 4 comprises an inner ring 4, an outer ring 3, a retainer 1 and balls 2. The inner part of the outer ring 3 is provided with a support ring 9. A fault-tolerant cavity 11 is arranged between the support ring 9 and the outer ring 3. A plurality of spring rings 17 for supporting are arranged between the support ring 9 and the outer ring 3. The outer ring 3 is further provided with sealing rings 13 on both sides. The retainer 1 is provided with a plurality of positioning columns 7. The positioning columns 7 are arranged obliquely. The positioning columns 7 are provided with push plates 6. The push plates 6 on both sides of the balls 2 limit the balls 2. During assembly, the balls 2 are loaded into the space between the inner ring 4 and the outer ring 3. Then the retainer 1 is installed. The balls 2 are installed between the push plates 6. When the bearing is running and is impacted, the outer ring 3 on the force side moves towards the inner ring 4. Until the outer ring 3 is in contact with the support ring 9. The spring rings 17 are compressed and deformed under extrusion. The spring rings 17 play a buffering role. When the balls 2 limited by the push plates 6 are extruded by impact, the balls 2 slightly move. The balls 2 are prevented from being directly impacted to cause damage to the balls 2. When the impact force disappears, the balls 2 are reset under the elastic support of the spring rings 17. The bearing returns to the initial state.

[0019] Preferably, the outer ring 3 and the support ring 9 are both provided with spring installation cavities 12. The spring installation cavities 12 are both provided with spring guide grooves 16. The spring installation cavities prevent the spring from moving and causing the buffering support to fail.

[0020] Preferably, the inner ring 4 and the support ring 9 are both provided with ball tracks 15. The inner wall of the outer ring 3 is further provided with support grooves 10 matching the ball tracks 15. When the outer ring 3 or the inner ring 4 is abnormally impacted, the fault-tolerant cavity 11 on the force side is compressed. The support grooves 10 are in contact with the ball tracks in priority. The fault-tolerant cavity 11 retains a part of the gap to prevent the spring ring 17 from being excessively compressed.

[0021] Preferably, the sealing rings 13 are both provided with limiting convex rings 14. The outer ring 3 and the support ring 9 are both provided with clamping grooves 8 clamping the limiting convex rings 14. The limiting convex rings 14 make the connection of the sealing rings 13 more compact and increase the sealing performance.

[0022] Preferably, the fault-tolerant cavity 11 is filled with lubricating grease. The lubricating grease can play a partial buffering role when impacted. At the same time, the lubricating grease can prevent the spring from rusting in the fault-tolerant cavity 11 to cause the elastic reset to fail.

[0023] Preferably, the push plates 6 are provided with ball limiting cavities 5. The ball limiting cavities 5 on the push plates 6 make the installation of the retainer 1 more convenient. At the same time, the ball limiting cavities 5 can more closely fit the balls 2 when impacted to prevent the retainer 1 from being separated.

[0024] The specific embodiments described herein are merely illustrative of the present application. Various modifications or changes can be made to the specific embodiments described herein by those skilled in the art of the present application without departing from the spirit of the present application or exceeding the scope of the appended claims.

[0025] Although the terms retainer 1, ball 2, outer ring 3, inner ring 4, ball limiting cavity 5, push plate 6, positioning column 7, clamping groove 8, support ring 9, support groove 10, fault tolerance cavity 11, spring mounting cavity 12, sealing ring 13, limiting convex ring 14, ball raceway 15, spring guide groove 16, spring ring 17 and the like are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A low-speed anti-vibration bearing, characterized in that, The device includes an inner ring (4), an outer ring (3), a cage (1), and balls (2). The outer ring (3) has a support ring (9) inside. A fault-tolerant cavity (11) is provided between the support ring (9) and the outer ring (3). Several spring rings (17) that provide support are also provided between the support ring (9) and the outer ring (3). Sealing rings (13) are also provided on both sides of the outer ring (3). Several positioning posts (7) are provided on the cage (1). The positioning posts (7) are inclined and have push plates (6) on them. The push plates (6) on both sides of the balls (2) limit the balls (2).

2. The low-speed anti-vibration bearing according to claim 1, characterized in that, Both the outer ring (3) and the support ring (9) are provided with spring mounting cavities (12), and both spring mounting cavities (12) are provided with spring guide grooves (16).

3. The low-speed anti-vibration bearing according to claim 1, characterized in that, Both the inner ring (4) and the support ring (9) are provided with ball raceways (15), and the inner wall of the outer ring (3) is also provided with a support groove (10) that fits into the ball raceway (15).

4. A low-speed anti-vibration bearing according to claim 1, characterized in that, The sealing ring (13) is provided with limiting protrusions (14) at both ends, and the outer ring (3) and the support ring (9) are provided with snap-fit ​​grooves (8) for snap-fit ​​limiting protrusions (14).

5. A low-speed anti-vibration bearing according to claim 1, characterized in that, The fault-tolerant cavity (11) is filled with lubricating grease.

6. A low-speed anti-vibration bearing according to claim 1, characterized in that, The push plate (6) is provided with a ball limiting cavity (5).

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