Buffer assembly for pressing bearing base by front cover of brush motor, bearing base and brush motor

Abstract

The utility model belongs to the technical field of brush motors, and provides a brush motor front cover pressure bearing pedestal buffer assembly, a bearing pedestal and a brush motor, comprising a first connecting block, a pressure head connected with the first connecting block, a second connecting block, and a spring connected with the second connecting block; and the pressure head is in contact with one end, far away from the second connecting block, of the spring. The first connecting block is arranged in the bearing bottom mounting hole, and the second connecting block is connected with the bearing base, so that external force is applied to the bearing seat through the elastic force of the spring when the bearing is loosened after long-time use, the stability of the bearing seat is ensured, the noise problem is avoided, and the failure rate of the motor is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of brushed motors, and in particular relates to a brushed motor front cover pressing bearing base buffer component, a bearing base and a brushed motor. Background Art

[0002] EPS brushed motors are widely used in electric power steering systems, and their front cover pressure bearing base is an important component of the motor.

[0003] The inventors have found that after long-term use, the bearing of the front cover pressure bearing base of the existing EPS brushed motor is easy to loosen, resulting in unstable operation of the motor and noise, and even causing motor failure in severe cases. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a brush motor front cover pressure bearing base buffer component, a bearing base and a brush motor. The utility model can improve the stability of the bearing, reduce operating noise and extend the service life of the motor through the buffer component.

[0005] According to some embodiments, the first solution of the utility model provides a brushed motor front cover bearing base buffer assembly, which adopts the following technical solution:

[0006] A brushed motor front cover bearing base buffer assembly, comprising a first connecting block, a pressure head connected to the first connecting block, a second connecting block, and a spring connected to the second connecting block;

[0007] The pressure head contacts an end of the spring away from the second connecting block.

[0008] Furthermore, the first connecting block is arranged in the mounting hole of the bearing bottom through the first connecting plate.

[0009] Furthermore, one end of the spring away from the second connecting block is connected to a positioning block.

[0010] Furthermore, a limiting hole is provided on the positioning block.

[0011] Furthermore, the spring is arranged on the second connecting block via a second connecting plate.

[0012] Furthermore, a core shaft is provided on the second connecting plate, and the core shaft is sleeved in the spring.

[0013] Furthermore, a pressure head accommodating hole is provided on the core shaft at one end away from the second connecting plate.

[0014] Furthermore, the second connecting block is connected to the bearing base.

[0015] According to some embodiments, the second solution of the utility model provides a bearing base, which adopts the following technical solution:

[0016] A bearing base comprises a bearing base body and a brushed motor front cover pressing bearing base buffer assembly arranged on the bearing base body, such as the one described in the first solution.

[0017] According to some embodiments, the second solution of the utility model provides a brushed motor, which adopts the following technical solution:

[0018] A brushed motor comprises a base and a bearing seat mounting hole provided on the base, wherein a bearing seat is arranged in the bearing seat mounting hole through a brushed motor front cover pressing bearing seat buffer assembly as described in the first scheme.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model comprises a first connection block, a pressure head connected to the first connection block, a second connection block, and a spring connected to the second connection block; the pressure head is in contact with one end of the spring away from the second connection block. The first connection block is arranged in the mounting hole of the bearing bottom, and the second connection block is connected to the bearing base. After long-term use, when the bearing is loose, the elastic force of the spring applies an external force to the bearing seat, thereby ensuring the stability of the bearing seat, avoiding the generation of noise problems, and reducing the failure rate of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Among them: 1. first connecting plate; 2. first connecting block; 3. pressure head; 4. positioning block; 5. core shaft; 6. spring; 7. second connecting plate; 8. screw; 9. second connecting block. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] Embodiment 1:

[0027] like Figure 1 As shown, this embodiment provides a brushed motor front cover pressure bearing base buffer assembly, including a first connecting block 2, a pressure head 3 connected to the first connecting block 2, a second connecting block 9, and a spring 6 connected to the second connecting block 9;

[0028] The pressure head 3 is in contact with an end of the spring 6 away from the second connecting block 9 .

[0029] The first connecting block 2 is arranged in the mounting hole of the bearing bottom, and the second connecting block 9 is connected to the bearing base. When the motor runs for a long time, the second connecting block 9 applies pressure to the bearing seat under the action of the spring 6, so that the bearing and the bearing seat are closely matched, thereby improving the stability of the bearing.

[0030] In this embodiment, the first connection block 2 is arranged in the bearing bottom mounting hole through the first connection plate 1. Optionally, the first connection plate 1 is arranged in the bearing bottom mounting hole by welding or bolt connection; the first connection plate 1 is connected to the first connection block 2 by screw connection; the first connection plate 1 is a circular plate, and the first connection block 2 is cylindrical.

[0031] The second connection block 9 is connected to the bearing base. Optionally, the second connection block 9 is connected to the bearing base by welding or bolt connection.

[0032] In this embodiment, one end of the spring 6 away from the second connection block 9 is connected to the positioning block 4. Optionally, a limiting hole is provided on the positioning block 4, and the limiting hole can accommodate the first connection block 2 to limit the first connection block 2 in the radial direction.

[0033] In this embodiment, the spring 6 is arranged on the second connection block 9 via the second connection plate 7. Optionally, the second connection plate 7 is connected to the second connection block 9 via screws 8, and the spring 6 is connected to the second connection plate 7 via welding or bolt connection.

[0034] The second connecting plate 7 is provided with a core shaft 5, and the core shaft 5 is sleeved in the spring 6. Optionally, the core shaft 5 is provided on the second connecting plate 7 by welding or the like.

[0035] Optionally, a pressure head accommodating hole is provided on the core shaft 5 at one end away from the second connecting plate 7; it can be understood that the positioning block 4 is sleeved on the core shaft 5, and when the second connecting block 9 presses the positioning block 4, the positioning block 4 slides relative to the core shaft 5 to achieve the purpose of compressing the spring; the pressure head 3 can move axially in the pressure head accommodating hole without applying force to the core shaft 5.

[0036] Optionally, the motor provided with the bearing seat includes a base body and a bearing seat. The base body is provided with a bearing seat mounting hole, and the bearing seat is arranged on the base body through the mounting hole. The second connecting block 9 in the buffer assembly is connected to the base body through the spring 6, and the second connecting block 9 can move along the direction of the spring 6 to apply pressure to the bearing seat.

[0037] The first connecting block 2 is connected to the pressure head 3 to fix or position the pressure head 3 to ensure its stability and accuracy during operation. The second connecting block 9 is connected to the bearing seat or related supporting structure to support the bearing and reduce the vibration and impact it is subjected to.

[0038] The cooperation between the pressure head 3 and the positioning block 4 avoids the interference of the core shaft 5 on the pressure head 3 and the first connection block 2 in the axial direction. Optionally, in some embodiments, a matching surface or a positioning hole is provided between the pressure head 3 and the positioning block 4 to ensure accurate alignment and fixation during the assembly process, which can reduce the axial movement range of the core shaft 5 and avoid interference with the pressure head 3 and the first connection block 2. The core shaft 5 has a guiding function.

[0039] When the motor is running, the pressure head 3 applies pressure to the second connection block 9 under the action of the spring 6, and the second connection block 9 can move along the direction of the spring force, and the pressing force can be adjusted according to the wear of the bearing.

[0040] This embodiment improves the stability of the bearing, reduces the operating noise, and prolongs the service life of the motor by improving the structure. At the same time, this embodiment has a simple structure, is easy to manufacture and install, and has high practicality and broad application prospects. At the same time, since the second connecting block 9 can move along the direction of the spring force, the pressing force can be adjusted according to the wear of the bearing, which further improves the stability of the bearing, thereby prolonging the service life of the motor.

[0041] Embodiment 2:

[0042] This embodiment provides a bearing base, including a bearing base body, and a brushed motor front cover pressing bearing base buffer assembly arranged on the bearing base body, such as the one described in Embodiment 1.

[0043] Embodiment 3:

[0044] The present embodiment provides a brushed motor, comprising a base, and a bearing seat mounting hole provided on the base, wherein a bearing seat is provided in the bearing seat mounting hole through a brushed motor front cover pressing bearing seat buffer assembly as described in Embodiment 1.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. The front cover of the brushed motor is pressed against the bearing base buffer assembly, characterized in that: It includes a first connecting block, a pressure head connected to the first connecting block, a second connecting block, and a spring connected to the second connecting block; The pressure head contacts an end of the spring away from the second connecting block.

2. The brushed motor front cover bearing base buffer assembly according to claim 1, characterized in that: The first connecting block is arranged in the mounting hole of the bearing bottom through the first connecting plate.

3. The brushed motor front cover bearing base buffer assembly according to claim 1, characterized in that: One end of the spring away from the second connecting block is connected to a positioning block.

4. The brushed motor front cover bearing base buffer assembly according to claim 3, characterized in that: The positioning block is provided with a limiting hole.

5. The brushed motor front cover bearing base buffer assembly according to claim 1, characterized in that: The spring is arranged on the second connecting block via a second connecting plate.

6. The brushed motor front cover bearing base buffer assembly according to claim 5, characterized in that: The second connecting plate is provided with a core shaft, and the core shaft is sleeved in the spring.

7. The brushed motor front cover bearing base buffer assembly according to claim 6, characterized in that: A pressure head accommodating hole is provided on the core shaft at one end away from the second connecting plate.

8. The brushed motor front cover bearing base buffer assembly according to claim 1, characterized in that: The second connecting block is connected to the bearing base.

9. A bearing base, characterized in that: It comprises a bearing base body, and a brushed motor front cover pressure bearing base buffer assembly arranged on the bearing base body as described in any one of claims 1 to 8.

10. A brushed motor, characterized in that: It comprises a base and a bearing seat mounting hole opened on the base, wherein a bearing seat is arranged in the bearing seat mounting hole through a brush motor front cover pressing bearing seat buffer assembly as described in any one of claims 1 to 8.

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