Special-shaped double-row angular contact ball bearing

Abstract

The special-shaped double-row angular contact ball bearing comprises an inner ring, an outer ring and a plurality of steel balls, a channel for containing the steel balls is formed between the inner ring and the outer ring, the steel balls are arranged in the channel in a rolling mode, the outer ring comprises a base plate and a ring sleeve, a ring hole is formed in the middle of the base plate, and the ring sleeve is arranged in the ring hole. The ring sleeve is coaxially fixed on the plate surface of the base plate, an outer ring step is formed on the hole edge of the ring hole, an inner ring step is arranged on the outer side wall of the inner ring, the inner ring step is matched with the outer ring step, and when the inner ring generates axial deviation, the inner ring step abuts against the outer ring step to prevent the inner ring from generating axial displacement. According to the special-shaped double-row angular contact ball bearing disclosed by the utility model, due to the arrangement of the inner ring step and the outer ring step, the axial bearing capacity of the bearing can be effectively increased.

Description

Technical Field

[0001] The utility model relates to a bearing, more specifically to a special-shaped double-row angular contact ball bearing. Background Art

[0002] The requirements for bearings used in shock absorbers of armored vehicles are generally different from those used in shock absorbers of ordinary vehicles. Generally, there are low speed, heavy load, large overturning force, and flexible rotation working conditions. Therefore, the existing bearing structure composed of an inner ring, a steel ball, and an outer ring cannot be applied to the above working conditions. Therefore, double-row angular contact bearings are mostly used in the prior art to cope with the above working conditions. However, the inner and outer ring structures of the existing double-row angular contact bearings are still ordinary annular. Therefore, the axial bearing capacity of the existing double-row angular contact bearings is not very strong. Therefore, when used in the above working conditions, the existing double-row angular contact bearings are not very suitable. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a special-shaped double-row angular contact ball bearing with strong axial bearing capacity.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special-shaped double-row angular contact ball bearing, comprising an inner ring, an outer ring and a plurality of steel balls, a groove for placing the steel balls is formed between the inner ring and the outer ring, and the plurality of steel balls are rotatably arranged in the groove, the outer ring comprises a base plate and a ring sleeve, a ring hole is opened in the middle of the base plate, the ring sleeve is coaxially fixed on the plate surface of the base plate, and an outer ring step is formed on the hole edge of the ring hole, an inner ring step is opened on the outer side wall of the inner ring, the inner ring step is adapted to the outer ring step, so that when the inner ring is axially offset, the inner ring step and the outer ring step offset each other to prevent the inner ring from generating axial displacement.

[0005] As a further improvement of the utility model, a reinforcing platform is coaxially sleeved on the outer side wall of the trap, and the reinforcing platform is a truncated cone-shaped structure, the inclined surface of the reinforcing platform is arranged to face away from the base plate, and the bottom surface is against the base plate.

[0006] As a further improvement of the present invention, a side surface of the base plate facing the ring is provided with an embedding groove coaxial with the ring hole, and the bottom surface of the reinforcing platform is embedded in the embedding groove.

[0007] As a further improvement of the utility model, a shaft disc coaxially extends from one end of the inner ring, the shaft disc is coaxially inserted into the ring hole, a sealing groove is opened on the outer wall of the shaft disc, an O-ring is embedded in the sealing groove, and the O-ring abuts against the hole wall of the ring hole.

[0008] As a further improvement of the utility model, a weight-reducing groove is provided on an end surface of the inner ring facing away from the shaft disc.

[0009] As a further improvement of the present invention, the weight reduction groove is used to install a pressure sensor or a temperature sensor.

[0010] The beneficial effect of the utility model is that, by arranging an inner ring, an outer ring and a plurality of steel balls, a double-row angular contact ball bearing structure can be effectively formed, and by arranging the outer ring into a base plate, a ring sleeve and a ring hole, the outer ring step can be effectively utilized to offset the inner ring step, thereby effectively increasing the axial bearing capacity of the bearing. Compared with the method in the prior art, this can be better applied to armored vehicle shock absorbers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall structural diagram of the special-shaped double-row angular contact ball bearing of the utility model. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0013] Reference Figure 1 As shown, a special-shaped double-row angular contact ball bearing of this embodiment includes an inner ring 1, an outer ring 2 and a plurality of steel balls 3. A groove for placing the steel balls 3 is formed between the inner ring 1 and the outer ring 2. The plurality of steel balls 3 are rollably arranged in the groove. The outer ring 2 includes a base plate 21 and a ring sleeve 22. A ring hole 23 is provided in the middle of the base plate 21. The ring sleeve 22 is coaxially fixed on the plate surface of the base plate 21, and an outer ring step is formed on the hole edge of the ring hole 23. An inner ring step is provided on the outer side wall of the inner ring 1. The inner ring step is adapted to the outer ring step so that when the inner ring 1 is axially offset, the inner ring step and the outer ring step are offset to hinder the inner ring 1 produces axial displacement. In the process of using this embodiment, it is only necessary to install the inner ring 1 with the steel ball 3 and the outer ring 2 on the armored vehicle shock absorber. Then, in the process of use, the inner ring step and the outer ring step can be set to effectively utilize the way that the two steps conflict with each other to achieve the effect of increasing the axial bearing capacity of the entire bearing, so that it can be better applied to the occasion of armored vehicle shock absorber. The contact angle of the steel ball 3 of this embodiment is 40°, and it is a full ball structure with a ball filling gap designed to improve the bearing capacity of the bearing and adapt to low-speed conditions. At the same time, 40° is selected as the appropriate contact angle, and after stress analysis and strength verification, it meets the use requirements.

[0014] As an improved specific implementation, a reinforcing platform 24 is coaxially sleeved on the outer wall of the ring 22. The reinforcing platform 24 is a truncated cone-shaped structure. The inclined surface of the reinforcing platform 24 is arranged to face away from the base plate 21, and the bottom surface is against the base plate 21. By setting the reinforcing platform 24, the effect of further increasing the axial bearing capacity of the overall bearing can be effectively achieved.

[0015] As an improved specific implementation, the base plate 21 is provided with a groove 25 coaxial with the ring hole 23 on one side facing the ring 22, and the bottom surface of the reinforcing platform 24 is embedded in the groove 25. Through the setting of the groove 25, it is possible to increase the radial bearing capacity of the overall bearing while strengthening the axial bearing capacity of the reinforcing platform 24.

[0016] As an improved specific implementation, a shaft disc 11 is coaxially extended from one end of the inner ring 1, and the shaft disc 11 is coaxially penetrated in the ring hole 23. A sealing groove is opened on the outer wall of the shaft disc 11, and an O-ring is embedded in the sealing groove. The O-ring is abutted against the hole wall of the ring hole 23. Through the arrangement of the above structure, the sealing connection between the inner ring 1 and the outer ring 2 can be simply and effectively achieved.

[0017] As a specific implementation of the improvement, a weight-reducing groove 12 is provided on the end face of the inner ring 1 facing away from the shaft disc 11. By setting the weight-reducing groove, the weight of the entire bearing can be effectively reduced, and the torque can be reduced at the same time. Sensors can be placed in the groove to facilitate the installation of pressure sensors, temperature sensors and other sensors.

[0018] In addition, the hole in the middle of the inner ring 1 in this embodiment is a special-shaped hole, which has a larger hole diameter at both ends and a smaller hole diameter in the middle, so that a step can be formed between the two ends and the middle, thereby further increasing the axial bearing capacity of the inner ring 1.

[0019] In summary, the special-shaped double-row angular contact ball bearing of this embodiment can effectively increase the axial load-bearing capacity of the bearing by matching the inner ring step with the outer ring step.

[0020] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A special-shaped double-row angular contact ball bearing, comprising an inner ring (1), an outer ring (2) and a plurality of steel balls (3), wherein a channel for placing the steel balls (3) is formed between the inner ring (1) and the outer ring (2), and the plurality of steel balls (3) are rollably arranged in the channel, characterized in that: The outer ring (2) comprises a base plate (21) and a collar (22); a collar hole (23) is provided in the middle of the base plate (21); the collar (22) is coaxially fixed on the plate surface of the base plate (21); and an outer ring step is formed on the edge of the collar hole (23); an inner ring step is provided on the outer wall of the inner ring (1); the inner ring step is matched with the outer ring step, so that when the inner ring (1) is axially offset, the inner ring step and the outer ring step abut against each other to prevent the inner ring (1) from axially displacing.

2. The special-shaped double-row angular contact ball bearing according to claim 1, characterized in that: A reinforcing platform (24) is coaxially sleeved on the outer wall of the trap (22). The reinforcing platform (24) is a truncated cone-shaped structure. The inclined surface of the reinforcing platform (24) is arranged to face away from the base plate (21), and the bottom surface abuts against the base plate (21).

3. The special-shaped double-row angular contact ball bearing according to claim 2, characterized in that: A side surface of the base plate (21) facing the ring (22) is provided with an embedding groove (25) coaxial with the ring hole (23), and the bottom surface of the reinforcing platform (24) is embedded in the embedding groove (25).

4. The special-shaped double-row angular contact ball bearing according to claim 3, characterized in that: A shaft disc (11) coaxially extends from one end of the inner ring (1), and the shaft disc (11) is coaxially inserted into the ring hole (23). A sealing groove is provided on the outer wall of the shaft disc (11), and an O-ring is embedded in the sealing groove. The O-ring abuts against the hole wall of the ring hole (23).

5. The special-shaped double-row angular contact ball bearing according to claim 4, characterized in that: A weight-reducing groove (12) is provided on an end surface of the inner ring (1) that faces away from the shaft disc (11).

6. The special-shaped double-row angular contact ball bearing according to claim 5, characterized in that: The weight reduction groove (12) is used for installing a pressure sensor or a temperature sensor.

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