Inner wall grinding device for needle bearing supporting shaft sleeve

Abstract

The utility model relates to an inner wall polishing device of a needle bearing supporting shaft sleeve, which comprises a base, a motor fixing block, a motor, a grinding wheel and a cooling mechanism, the motor is fixedly sleeved on the motor fixing block, so that the motor and the motor fixing block are fixedly installed together; the motor is provided with a rotating shaft, and the grinding wheel is fixedly mounted on the rotating shaft, so that the motor drives the grinding wheel to rotate; and the cooling mechanism is mounted on the motor holding block and is used for cooling the motor. The inner wall grinding device for the needle bearing supporting shaft sleeve has the advantages of being simple in structure and easy and convenient to assemble, and due to the fact that the cooling mechanism is directly arranged on the motor, the cooling temperature is more effectively and more obviously transmitted to the motor, and the cooling efficiency is good.

Description

Technical Field

[0001] The utility model relates to the field of grinding devices, in particular to a device for grinding the inner wall of a needle roller bearing support sleeve. Background Art

[0002] The needle roller sleeve includes a support sleeve, and one of the steps in the production process of the support sleeve is to grind the inner wall thereof. In one prior art, a grinder includes a motor and a grinding wheel. The motor drives the grinding wheel to rotate at high speed, and the grinding wheel extends into the interior of the support sleeve, thereby grinding the inner wall of the support sleeve. However, in this type of grinder, due to long-term operation, the motor will generate heat, which may cause damage to the motor in severe cases. Therefore, how to reduce the temperature of the motor during operation becomes a difficult problem. Based on this, in the prior art, some people have attempted to reduce the temperature of the environment where the motor is located by lowering the temperature around the motor, for example, by turning on the air conditioner or installing an electric fan indoors. However, this cooling effect is almost negligible. Summary of the Invention

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a device for grinding the inner wall of a needle roller bearing support sleeve.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a device for grinding the inner wall of a needle bearing support sleeve, comprising a base, a motor holding block, a motor, a grinding wheel and a cooling mechanism, wherein the motor holding sleeve is arranged on the motor holding block, so that the motor and the motor holding block are fixedly installed together; the motor has a rotating shaft, and the grinding wheel is fixedly installed on the rotating shaft, so that the motor drives the grinding wheel to rotate; the cooling mechanism is installed on the motor holding block, and the cooling mechanism is used to cool the motor.

[0005] In a preferred embodiment of the present application, the cooling mechanism includes a cooling fan assembly, the cooling fan assembly includes a cooling fan and a fan mounting frame, the fan mounting frame has a mounting through hole, the mounting through hole passes through the fan mounting frame, the cooling fan is installed in the mounting through hole, and the cooling air generated when the cooling fan rotates passes through the mounting through hole.

[0006] In a preferred embodiment of the present application, the cooling fan assembly further includes a rotating base and a connecting column, one end of the connecting column is fixedly connected to the fan mounting frame, the other end of the connecting column is fixedly connected to the rotating base, and the rotating base is located in the mounting through hole.

[0007] In a preferred embodiment of the present application, the cooling mechanism further includes a ventilation base, which is detachably fixedly connected to the fan mounting frame of the cooling fan assembly on one hand, and detachably fixedly connected to the motor holding block on the other hand.

[0008] In a preferred embodiment of the present application, the ventilation base has ventilation holes, which pass through the ventilation base. When the ventilation base and the fan mounting frame are fixedly connected together, the mounting through holes of the fan mounting frame and the ventilation holes of the ventilation base are fluidly connected, so that the cooling air generated by the rotation of the cooling fan flows into the ventilation holes through the mounting through holes.

[0009] In a preferred embodiment of the present application, the cooling mechanism also includes an air intake grille, which is provided with at least one air intake hole, the air intake hole passes through the air intake grille, and the air intake hole and the mounting hole are fluidically connected, so that when the cooling fan rotates, the outside air flows into the mounting hole through the air intake hole of the air intake grille.

[0010] In a preferred embodiment of the present application, the air intake grille further includes at least two grid plates, a preset distance is provided between two adjacent grid plates, and the air intake holes are provided between the two adjacent grid plates.

[0011] In a preferred embodiment of the present application, the air intake grille further includes at least one connecting rib and a collecting plate, the grille and the connecting rib are fixedly connected, and the connecting rib and the collecting plate are fixedly connected, thereby increasing the strength of the air intake grille.

[0012] In a preferred embodiment of the present application, the motor holding block is recessed inward to form a groove, thereby forming a connecting wall around the groove, and the connecting wall is fixedly connected to the ventilation base. The groove reduces the thickness of the motor holding block, thereby making it easier for the cooling air generated by the cooling mechanism to be transmitted to the motor.

[0013] The beneficial effects of the present application are: the inner wall grinding device of the needle roller bearing support sleeve provided in the present application has the advantages of simple structure and easy assembly, and since the cooling mechanism is directly arranged on the motor, the cooling temperature can be transferred to the motor more effectively and more obviously, and the cooling efficiency is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a device for grinding the inner wall of a needle roller bearing support sleeve provided by the utility model.

[0015] Figure 2This is an exploded view of the cooling mechanism of the inner wall grinding device of the needle roller bearing support sleeve provided by the utility model.

[0016] Figure 3 This is another exploded view of the cooling mechanism of the inner wall grinding device of the needle roller bearing support sleeve provided by the utility model.

[0017] Figure 4 This is a structural schematic diagram of a needle roller bearing support sleeve inner wall grinding device provided by the utility model without the cooling mechanism. DETAILED DESCRIPTION

[0018] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0019] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0020] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0021] Please refer to Figure 1-4The present application provides a device for grinding the inner wall of a needle roller bearing support sleeve (hereinafter referred to as a grinding device), which includes a base 1, a motor holding block 2, a motor 3, a grinding wheel 4 and a cooling mechanism 5, wherein the motor 3 is fixedly sleeved on the motor holding block 2, so that the motor 3 and the motor holding block 2 are fixedly installed together; the motor 3 has a rotating shaft 30, and the grinding wheel 4 is fixedly installed on the rotating shaft 30, so that the motor 3 drives the grinding wheel 4 to rotate; the cooling mechanism 5 is installed on the motor holding block 2, and the cooling mechanism 5 is used to cool the motor 3.

[0022] In one embodiment of the present application, the cooling mechanism 5 includes a cooling fan assembly 52, the cooling fan assembly 52 includes a cooling fan 522 and a fan mounting frame 521, the fan mounting frame 521 has a mounting through hole 5210, the mounting through hole 5210 passes through the fan mounting frame 521, the cooling fan 522 is installed in the mounting through hole 5210, and the cooling wind generated when the cooling fan 522 rotates passes through the mounting through hole 5210.

[0023] In one embodiment of the present application, the cooling fan assembly 52 also includes a rotating base 523 and a connecting column 524, one end of the connecting column 524 is fixedly connected to the fan mounting frame 521, and the other end of the connecting column 524 is fixedly connected to the rotating base 523, and the rotating base 523 is located in the mounting through hole 5210.

[0024] In one embodiment of the present application, the cooling mechanism 5 also includes a ventilation base 51, which is detachably fixedly connected to the fan mounting frame 521 of the cooling fan assembly 52 on the one hand, and is detachably fixedly connected to the motor holding block 2 on the other hand.

[0025] In one embodiment of the present application, the ventilation base 51 has a ventilation hole 510, and the ventilation hole 510 passes through the ventilation base 51. When the ventilation base 51 and the fan mounting frame 521 are fixedly connected together, the mounting through hole 5210 of the fan mounting frame 521 and the ventilation hole 510 of the ventilation base 51 are fluidically connected, so that the cooling air generated by the rotation of the cooling fan 522 flows into the ventilation hole 510 through the mounting through hole 5210.

[0026] In one embodiment of the present application, the cooling mechanism 5 also includes an air intake grille 53, and at least one air intake hole 530 is provided on the air intake grille 53. The air intake hole 530 passes through the air intake grille 53, and the air intake hole 530 and the mounting hole 5210 are fluidically connected, so that when the cooling fan 522 rotates, the outside air flows into the mounting hole 5210 through the air intake hole 530 of the air intake grille 53.

[0027] In one embodiment of the present application, the air intake grille 53 further includes at least two grid plates 531 , a preset distance is provided between two adjacent grid plates 531 , and the air intake holes 530 are provided between the two adjacent grid plates 531 .

[0028] In one embodiment of the present application, the air intake grille 53 further includes at least one connecting rib 533 and a collecting plate 532, the grille 531 and the connecting rib 533 are fixedly connected, and the connecting rib 533 and the collecting plate 532 are fixedly connected, thereby increasing the strength of the air intake grille 53.

[0029] In one embodiment of the present application, the motor holding block 2 is recessed inward to form a groove 20, thereby forming a connecting wall 21 around the groove 20, and the connecting wall 21 is fixedly connected to the ventilation base 51. The groove 20 reduces the thickness of the motor holding block 2, thereby making it easier for the cooling air generated by the cooling mechanism 2 to be transmitted to the motor 3.

[0030] The inner wall grinding device of the needle roller bearing support sleeve provided in the present application has the advantages of simple structure and easy assembly. In addition, since the cooling mechanism is directly arranged on the motor, the cooling temperature can be transferred to the motor more effectively and more obviously, and the cooling efficiency is good.

[0031] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A device for grinding the inner wall of a needle roller bearing support sleeve, characterized in that: It includes a base, a motor holding block, a motor, a grinding wheel and a cooling mechanism, wherein the motor is fixedly sleeved on the motor holding block, so that the motor and the motor holding block are fixedly installed together; the motor has a rotating shaft, and the grinding wheel is fixedly installed on the rotating shaft, so that the motor drives the grinding wheel to rotate; the cooling mechanism is installed on the motor holding block, and the cooling mechanism is used to cool the motor.

2. The inner wall grinding device of the needle roller bearing support sleeve according to claim 1, characterized in that: The cooling mechanism includes a cooling fan assembly, which includes a cooling fan and a fan mounting frame. The fan mounting frame has a mounting through hole, which passes through the fan mounting frame. The cooling fan is installed in the mounting through hole, and the cooling air generated by the cooling fan when it rotates passes through the mounting through hole.

3. The inner wall grinding device of the needle roller bearing support sleeve according to claim 2, characterized in that: The cooling fan assembly further includes a rotating base and a connecting column, one end of the connecting column is fixedly connected to the fan mounting frame, the other end of the connecting column is fixedly connected to the rotating base, and the rotating base is located in the mounting through hole.

4. The inner wall grinding device of the needle roller bearing support sleeve according to claim 3, characterized in that: The cooling mechanism further comprises a ventilation base, which is detachably fixedly connected to the fan mounting frame of the cooling fan assembly on one hand, and is detachably fixedly connected to the motor holding block on the other hand.

5. The inner wall grinding device of the needle roller bearing support sleeve according to claim 4, characterized in that: The ventilation base has a ventilation hole, which passes through the ventilation base. When the ventilation base and the fan mounting frame are fixedly connected together, the mounting through hole of the fan mounting frame and the ventilation hole of the ventilation base are fluidly connected, so that the cooling air generated by the rotation of the cooling fan flows into the ventilation hole through the mounting through hole.

6. The inner wall grinding device of the needle roller bearing support sleeve according to claim 5, characterized in that: The cooling mechanism also includes an air intake grille, which is provided with at least one air intake hole. The air intake hole passes through the air intake grille, and the air intake hole is fluidically connected to the mounting hole, so that when the cooling fan rotates, the outside air flows into the mounting hole through the air intake hole of the air intake grille.

7. The inner wall grinding device of the needle roller bearing support sleeve according to claim 6, characterized in that: The air intake grille further comprises at least two grid plates, a preset distance is provided between two adjacent grid plates, and the air intake through hole is provided between the two adjacent grid plates.

8. The inner wall grinding device of the needle roller bearing support sleeve according to claim 7, characterized in that: The air intake grille further comprises at least one connecting rib and a collecting plate. The grille plate and the connecting rib are fixedly connected, and the connecting rib and the collecting plate are fixedly connected, thereby increasing the strength of the air intake grille.

9. The inner wall grinding device of the needle roller bearing support sleeve according to claim 8, characterized in that: The motor holding block is recessed inward to form a groove, thereby forming a connecting wall around the groove. The connecting wall is fixedly connected to the ventilation base. The groove reduces the thickness of the motor holding block, thereby making it easier for the cooling air generated by the cooling mechanism to be transmitted to the motor.

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