Driving motor bearing device

Abstract

The utility model relates to the technical field of driving motor bearings, and discloses a driving motor bearing device which comprises a bearing outer ring, a bearing inner ring is arranged in an inner cavity of the bearing outer ring, steel balls are connected between the bearing inner ring and the bearing outer ring in a rolling mode, an installation groove is formed in the inner cavity of the bearing outer ring, a rubber ring is installed on the inner wall of the installation groove, and the rubber ring is connected with the bearing inner ring. A rotating shaft is installed on the inner wall of the bearing inner ring, a motor shell is installed on the outer ring of the bearing outer ring, and sealing covers are installed on the top and the bottom of the bearing outer ring and the top and the bottom of the bearing inner ring. The mounting grooves are formed in the top and the bottom of the bearing outer ring 1, the rubber rings are mounted in the mounting grooves, and the resistance of the sleeve is increased through the rubber rings, so that the sleeve is not easy to slide, and the problem that the bearing mounted on the motor shell is gradually separated from the motor shell due to the fact that the bearing is continuously smashed through the sleeve and a hammer during disassembly is solved. And the problem that the sleeve is prone to displacement in the smashing process, and consequently the sleeve damages the rotating shaft and the motor shell is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drive motor bearings, in particular to a drive motor bearing device. Background Technique

[0002] New energy electric vehicles are the future development direction of automobiles. The drive motor is an important part of new energy vehicles. There is a sealing cover on the drive motor, and a rotating shaft passes through the middle of this sealing cover. The rotating shaft is connected through a motor bearing. Most motor bearings use rolling bearings. A rolling bearing is a precision mechanical component that changes the sliding friction between the rotating shaft and the bearing seat into rolling friction, thereby reducing friction loss.

[0003] When the bearing installed on the motor housing is disassembled, it is continuously hammered through a sleeve and a hammer, so that the bearing gradually disengages from the motor housing. During the hammering process, the sleeve is very likely to be displaced due to the vibration force. When the sleeve is displaced, if the displacement force of the sleeve cannot be grasped, it will contact the rotating shaft and the motor housing, resulting in damage to the rotating shaft and the motor housing by the sleeve. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a drive motor bearing device, which has the advantages that the bearing can stabilize the sleeve and increase the sealing performance between the rotating shaft and the motor housing, and solves the problems raised in the above background technology.

[0005] The utility model provides the following technical scheme: A drive motor bearing device, including an outer bearing ring, an inner bearing ring is arranged in the inner cavity of the outer bearing ring, steel balls are rollingly connected between the inner bearing ring and the outer bearing ring, an installation groove is opened in the inner cavity of the outer bearing ring, a rubber ring is installed on the inner wall of the installation groove, a rotating shaft is installed on the inner wall of the inner bearing ring, a motor housing is installed on the outer ring of the outer bearing ring, and sealing covers are installed on the top and bottom of the outer bearing ring and the inner bearing ring.

[0006] As a preferred technical scheme of the utility model, a clamping groove is opened on the inner wall of the motor housing, a snap ring is installed on the inner wall of the clamping groove, and the clamping groove is located below the outer bearing ring.

[0007] As a preferred technical scheme of the utility model, a steel ring is arranged on the top of the outer bearing ring, a rubber sleeve is installed on the outer wall of the steel ring, and the width of the steel ring is longer than the gap between the outer bearing ring and the inner bearing ring.

[0008] As a preferred technical scheme of the utility model, the outer wall of the rubber sleeve is closely attached to the inner wall of the motor housing, and the inner wall of the rubber sleeve is closely attached to the outer edge of the rotating shaft.

[0009] As a preferred technical solution of the present utility model, an anti - detachment ring is fixedly assembled on the inner wall of the installation groove, and the rubber ring is in close fit with the installation groove.

[0010] As a preferred technical solution of the present utility model, there are two installation grooves and rubber rings respectively. The two installation grooves and the two rubber rings are respectively located at the top and bottom of the outer ring of the bearing.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] 1. For this drive motor bearing device, by arranging installation grooves at the top and bottom of the outer ring 1 of the bearing, and installing rubber rings in the installation grooves, the resistance of the sleeve is increased through the rubber rings, making it difficult for the sleeve to slide. Thus, the problem that the bearing installed on the motor housing is disassembled by continuously hitting with a sleeve and a hammer, causing the bearing to gradually separate from the motor housing, and during the hitting process, the sleeve is likely to be displaced, resulting in damage to the rotating shaft and the motor housing by the sleeve is solved.

[0013] 2. For this drive motor bearing device, through the arrangement of the rubber sleeve and the steel ring, the rubber sleeve can play a sealing role between the rotating shaft and the motor housing. At the same time, the steel ring is placed between the outer ring and the inner ring of the bearing, enabling the outer ring and the inner ring of the bearing to be removed under a state of uniform force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic cross - sectional structure diagram of the present utility model;

[0015] Figure 2 is the present utility model Figure 1 the enlarged structure diagram of part A in;

[0016] Figure 3 is a schematic top three - dimensional structure diagram of the present utility model;

[0017] Figure 4 is a schematic bottom three - dimensional structure diagram of the present utility model;

[0018] Figure 5 is a schematic structure diagram of the rubber ring of the present utility model.

[0019] In the figure: 1. Outer ring of the bearing; 2. Inner ring of the bearing; 3. Steel balls; 4. Rotating shaft; 5. Motor housing; 6. Installation groove; 7. Anti - detachment ring; 8. Rubber ring; 9. Sealing cover; 10. Card slot; 11. Snap ring; 12. Steel ring; 13. Rubber sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 - Figure 5 , a driving motor bearing device, including an outer bearing ring 1, an inner bearing ring 2 is arranged in the inner cavity of the outer bearing ring 1, steel balls 3 are rotatably connected between the inner bearing ring 2 and the outer bearing ring 1, an installation groove 6 is opened in the inner cavity of the outer bearing ring 1, and a rubber ring 8 is installed on the inner wall of the installation groove 6. By installing the rubber ring 8 in the installation groove 6, when the bearing needs to be disassembled, by placing a circular sleeve in the rubber ring 8, when the sleeve is struck, the sleeve will not displace on the outer bearing ring 1, preventing the sleeve from sliding and damaging the motor housing 5 and the rotating shaft 4. A rotating shaft 4 is installed on the inner wall of the inner bearing ring 2, a motor housing 5 is installed on the outer ring of the outer bearing ring 1, and sealing covers 9 are installed on the top and bottom of the outer bearing ring 1 and the inner bearing ring 2. The sealing covers 9 play a role in dust prevention and at the same time prevent the lubricant from overflowing.

[0022] In a preferred embodiment, a clamping groove 10 is opened in the inner wall of the motor housing 5, and a snap ring 11 is installed on the inner wall of the clamping groove 10. The clamping groove 10 is located below the outer bearing ring 1. By using the arrangement of the clamping groove 10, the snap ring 11 can be installed in the clamping groove 10. The clamping groove 10 plays a role in fixing the snap ring 11, so that the snap ring 11 will not displace. The snap ring 11 plays a role in fixing the outer bearing ring 1, the inner bearing ring 2 and the steel balls 3, so that the outer bearing ring 1, the inner bearing ring 2 and the steel balls 3 will not displace outward during use, improving the stability of the outer bearing ring 1, the inner bearing ring 2 and the steel balls 3.

[0023] In a preferred embodiment, a steel ring 12 is arranged on the top of the outer bearing ring 1, a rubber sleeve 13 is installed on the outer wall of the steel ring 12, and the width of the steel ring 12 is longer than the gap between the outer bearing ring 1 and the inner bearing ring 2. When the bearing needs to be removed from the motor housing 5, by placing the sleeve on the rubber sleeve 13 and hitting it downward, at this time the steel ring 12 plays a supporting role, so that the steel ring 12 is placed between the outer bearing ring 1 and the inner bearing ring 2, so that the outer bearing ring 1 and the inner bearing ring 2 can be taken off under the state of uniform force.

[0024] In a preferred embodiment, the outer wall of the rubber sleeve 13 is in close fit with the inner wall of the motor housing 5, and the inner wall of the rubber sleeve 13 is in close fit with the outer edge of the rotating shaft 4. The rubber sleeve 13 can protect the outer ring 1 and the inner ring 2 of the bearing, so that the steel ring 12 will not directly contact the outer ring 1 and the inner ring 2 of the bearing. The rubber sleeve 13 increases the resistance of the sleeve, so that the sleeve will not be displaced when stressed. At the same time, the rubber sleeve 13 plays a sealing role, which can effectively prevent dust and water from entering the motor housing 5 and improve the sealing performance of the device.

[0025] In a preferred embodiment, an anti-detachment ring 7 is fixedly assembled on the inner wall of the installation groove 6. The rubber ring 8 is in close fit with the installation groove 6. By means of the arrangement of the anti-detachment ring 7, the rubber ring 8 is blocked by the installation groove 6, so that the rubber ring 8 will not detach in the installation groove 6, and the stability of the rubber ring 8 is improved.

[0026] In a preferred embodiment, there are two installation grooves 6 and two rubber rings 8 respectively, and the two installation grooves 6 and the two rubber rings 8 are respectively located at the top and bottom of the outer ring 1 of the bearing, so that the sleeves are placed on both the front and back sides of the bearing, and the sleeves can be stable when the bearing is being driven in and out, improving the stability of the device.

[0027] Working principle: When in use, the steel ring 12 and the rubber sleeve 13 are installed at the topmost end of the motor housing 5. Then, the outer ring 1 of the bearing, the inner ring 2 of the bearing and the steel balls 3 are placed on the motor housing 5. Then, the sleeve is placed on the rubber ring 8 on the outer ring 1 of the bearing. The rubber ring 8 can prevent the sleeve from slipping. Then, the sleeve is driven. Gradually, the outer ring 1 of the bearing, the inner ring 2 of the bearing and the rubber sleeve 13 come into contact. Then, the snap ring 11 is installed in the clamping groove 10. When disassembling, the snap ring 11 is removed, and the sleeve is placed on the rubber sleeve 13. By driving the sleeve, the rubber sleeve 13, the steel ring 12, the outer ring 1 of the bearing and the inner ring 2 of the bearing are gradually detached from the motor housing 5. During this process, the rubber sleeve 13 provides anti-slip for the sleeve.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A driving motor bearing device, comprising an outer bearing ring (1), characterized in that: The inner cavity of the bearing outer ring (1) is provided with a bearing inner ring (2). There are steel balls (3) rolling between the bearing inner ring (2) and the bearing outer ring (1). An installation groove (6) is opened on the inner wall of the bearing outer ring (1). A rubber ring (8) is installed on the inner wall of the installation groove (6). A rotating shaft (4) is installed on the inner wall of the bearing inner ring (2). A motor housing (5) is installed on the outer ring of the bearing outer ring (1). Sealing covers (9) are installed at both the top and bottom of the bearing outer ring (1) and the bearing inner ring (2).

2. The drive motor bearing device according to claim 1, characterized in that: A clamping groove (10) is opened on the inner wall of the motor housing (5). A snap ring (11) is installed on the inner wall of the clamping groove (10). The clamping groove (10) is located below the bearing outer ring (1).

3. The drive motor bearing device according to claim 1, characterized in that: A steel ring (12) is provided at the top of the bearing outer ring (1). A rubber sleeve (13) is installed on the outer wall of the steel ring (12). The width of the steel ring (12) is longer than the gap between the bearing outer ring (1) and the bearing inner ring (2).

4. The drive motor bearing device according to claim 3, characterized in that: The outer wall of the rubber sleeve (13) is in close fit with the inner wall of the motor housing (5). The inner wall of the rubber sleeve (13) is in close fit with the outer edge of the rotating shaft (4).

5. A driving motor bearing device according to claim 1, characterized in that: An anti - detachment ring (7) is fixedly assembled on the inner wall of the installation groove (6). The rubber ring (8) is in close fit with the installation groove (6).

6. The drive motor bearing device according to claim 1, characterized in that: There are two installation grooves (6) and two rubber rings (8) respectively. The two installation grooves (6) and the two rubber rings (8) are respectively located at the top and bottom of the bearing outer ring (1).

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