Motor

Abstract

The utility model provides a motor, and belongs to the technical field of motors. The problem of poor stability in the prior art is solved. The motor comprises a motor assembly, a shell and a protective cover, a cylindrical connecting cylinder is arranged at the upper end of the shell, the motor further comprises a bearing, an inner ring of the bearing is fixedly connected to a rotating shaft, an outer ring of the bearing is fixedly connected to the connecting cylinder, and the protective cover is positioned at the connecting cylinder and covers the bearing. The motor is compact in structure, and the assembling method is rapid and accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors and relates to a motor. Background Art

[0002] A motor is a device that converts electrical energy into mechanical energy and is widely used in various industrial, household, and transportation applications. It operates on the principle of electromagnetic induction, converting electrical energy into rotational or linear motion to drive various mechanical devices.

[0003] Existing motors typically include a hollow housing and a motor assembly within the housing. One end of the motor shaft is covered by a protective cover. The protective cover is typically attached to the housing directly using a threaded connection. This connection method is relatively unstable and prone to failure after prolonged use, resulting in poor stability. Summary of the Invention

[0004] The first object of the present invention is to provide a motor with simple assembly and compact structure in order to solve the above problems in the prior art.

[0005] The second object of the present invention is to provide an assembling method of the motor.

[0006] The first object of the utility model can be achieved by the following technical solutions:

[0007] A motor includes a motor assembly, a housing and a protective cover, wherein the interior of the housing is a cavity, the motor assembly is connected to the housing, the upper end of the rotating shaft in the motor assembly extends out of the upper part of the housing, the protective cover is connected to the upper end of the housing and covers the upper end of the rotating shaft. It is characterized in that the upper end of the housing has a cylindrical connecting tube, and also includes a bearing, the inner ring of the bearing is fixedly connected to the rotating shaft, the outer ring of the bearing is fixedly connected to the connecting tube, the protective cover is positioned at the connecting tube and covers the bearing.

[0008] In the above-mentioned motor, the inner port of the lower end of the connecting tube has an annular protruding stop edge, the inner port of the upper end of the connecting tube has an annular protruding positioning edge, the lower end of the bearing outer ring rests on the stop edge, and the edge of the protective cover is tightly pressed between the positioning edge and the upper end of the bearing outer ring.

[0009] In the above-mentioned motor, the connecting cylinder, the retaining edge and the positioning edge are an integrated structure.

[0010] In the above-mentioned motor, the wall thickness dimension of the connecting tube is A, the thickness dimension of the retaining edge is B, and the thickness dimension of the positioning edge is C, and the above-mentioned B>A>C.

[0011] In the above-mentioned motor, the connecting tube, the retaining edge, the positioning edge and the housing are all integrated structures.

[0012] In the above-mentioned motor, the protective cover is in the shape of a truncated cone and has a cavity inside. The small-sized end of the protective cover is the upper end and is closed. The large-sized end of the protective cover is the lower end and is the connecting end. The connecting end is positioned between the positioning edge and the outer ring of the bearing.

[0013] In the above-mentioned motor, the outer port of the connection end has an annular protruding connection edge, the lower portion of the connection edge contacts the end surface of the bearing outer ring, and the positioning edge is buckled at the upper portion of the connection edge.

[0014] In the above motor, a protruding flange is provided at the lower end of the housing.

[0015] The second purpose of the present invention can be achieved through the following technical solutions:

[0016] A method for assembling a motor, characterized in that the method comprises the following steps:

[0017] A. Preparation: Prepare the semi-finished motor. The inner port on the upper end of the connecting tube of the semi-finished motor should be flush with the inner wall of the connecting tube.

[0018] B. Positioning: Position the semi-finished motor on the corresponding fixture;

[0019] C. Riveting: A positioning edge protruding inward is formed at the upper end of the connecting tube through riveting. After the positioning edge is formed, the outer edge of the bearing outer ring and the outer edge of the protective cover are tightly pressed between the positioning edge and the retaining edge.

[0020] In the above-mentioned motor assembly method, in step C, the outer edge of the protective cover has a protruding connecting edge, and the connecting edge is tightly pressed between the positioning edge and the outer end of the bearing.

[0021] Compared with the prior art, the edge of the protective cover and the outer ring of the bearing in the motor are positioned between the positioning edge and the retaining edge. Therefore, both the bearing and the protective cover can be stably positioned, and the stability is relatively high.

[0022] Since the edge of the protective cover and the bearing are completely covered in the protective cover, the structure is relatively compact and has high practical value.

[0023] In addition, the motor is assembled in a riveting manner, which can quickly and stably form a positioning edge at the upper end of the connecting tube, and the entire assembly process is fast and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the cross-sectional structure of the motor before assembly.

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the motor after assembly.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the motor after assembly.

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the motor before assembly.

[0028] Figure 5 This is a schematic diagram of the three-dimensional exploded structure of the motor before assembly.

[0029] In the figure, 1. Motor assembly; 1a. Rotating shaft; 2. Housing; 2a. Connecting cylinder; 2a1. Stop edge; 2a2. Positioning edge; 2b. Flange; 3. Protective cover; 3a. Connecting end; 3a1. Connecting edge; 4. Bearing. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] like Figure 1 and Figure 2 As shown, the motor includes a motor assembly 1, a housing 2 and a protective cover 3. The interior of the housing 2 is a cavity, the motor assembly 1 is connected to the housing 2, the upper end of the rotating shaft 1a in the motor assembly 1 extends out of the upper part of the housing 2, and the protective cover 3 is connected to the upper end of the housing 2 and covers the upper end of the rotating shaft 1a.

[0034] like Figure 3 and Figure 4and Figure 5 As shown, the upper end of the housing 2 has a cylindrical connecting tube 2a, and also includes a bearing 4. The inner ring of the bearing 4 is fixedly connected to the rotating shaft 1a, and the outer ring of the bearing 4 is fixedly connected to the connecting tube 2a. The protective cover 3 is positioned at the connecting tube 2a and the protective cover 3 covers the bearing 4.

[0035] The inner port at the lower end of the connecting tube 2a has an annular protruding retaining edge 2a1, and the inner port at the upper end of the connecting tube 2a has an annular protruding positioning edge 2a2. The lower end of the outer ring of the bearing 4 rests on the retaining edge 2a1, and the edge of the protective cover 3 is tightly pressed between the positioning edge 2a2 and the upper end of the outer ring of the bearing 4.

[0036] Under the action of the bearing 4 , the rotating shaft 1 a in the motor assembly 1 can rotate smoothly.

[0037] The housing 2 can effectively protect the motor assembly 1 and prevent the motor assembly 1 from being affected by external interference.

[0038] In this motor, the protective cover 3 and the bearing 4 are creatively positioned in the connecting tube 2a by means of the positioning edge 2a2 and the retaining edge 2a1.

[0039] Specifically, the upper portion of the protective cover 3 is limited by the positioning edge 2a2, and the lower portion of the bearing 4 is limited by the blocking edge 2a1, and finally the protective cover 3 and the bearing 4 are stably limited in the connecting tube 2a.

[0040] The connecting tube 2a, the retaining edge 2a1 and the positioning edge 2a2 are an integrated structure.

[0041] Of course, the housing 2, the connecting tube 2a, the retaining edge 2a1 and the positioning edge 2a2 are all of an integrated structure, which can appropriately improve the structural compactness of the motor.

[0042] The wall thickness of the connecting tube 2a is A, the thickness of the retaining edge 2a1 is B, and the thickness of the positioning edge 2a2 is C, and B>A>C.

[0043] Since the retaining edge 2a1 is used to support the bearing 4, the weight of the bearing 4 and the protective cover 3 is concentrated on the retaining edge 2a1. The retaining edge 2a1 with the largest thickness can effectively bear the above-mentioned gravity load.

[0044] At the same time, the positioning edge 2a2 with a relatively small thickness can be stably riveted and formed under the action of external force.

[0045] The connecting tube 2a, the retaining edge 2a1, the positioning edge 2a2 and the housing 2 are all integrated structures.

[0046] The protective cover 3 is in the shape of a truncated cone and has a cavity inside. The small end of the protective cover 3 is the upper end and is closed. The large end of the protective cover 3 is the lower end and is the connecting end 3a. The connecting end 3a is positioned between the positioning edge 2a2 and the outer ring of the bearing 4.

[0047] Such a structure can improve the compactness of the overall motor structure.

[0048] The outer end of the connecting end 3a has an annular protruding connecting edge 3a1, the lower portion of the connecting edge 3a1 is in contact with the end surface of the outer ring of the bearing 4, and the positioning edge 2a2 is buckled at the upper portion of the connecting edge 3a1.

[0049] The connecting edge 3a1 increases the contact area with the outer ring of the bearing 4, thereby improving the connection stability.

[0050] The housing 2 has a protruding flange 2b at the lower end.

[0051] The motor can be stably positioned on the corresponding fixture through the flange 2b during the assembly process. Of course, the motor can also be stably positioned and connected to the corresponding frame or bracket through the flange 2b when in use.

[0052] The assembly method of the motor includes the following steps:

[0053] A. Preparation: Prepare the semi-finished motor. The inner port on the upper end of the connecting tube of the semi-finished motor should be flush with the inner wall of the connecting tube.

[0054] B. Positioning: Position the semi-finished motor on the corresponding fixture;

[0055] C. Riveting: A positioning edge protruding inward is formed at the upper end of the connecting tube through riveting. After the positioning edge is formed, the outer edge of the bearing outer ring and the outer edge of the protective cover are tightly pressed between the positioning edge and the retaining edge.

[0056] In step C, the outer edge of the protective cover has a protruding connecting edge, and the connecting edge is tightly pressed between the positioning edge and the outer end of the bearing.

[0057] During the assembly step, the semi-finished product needs to be inspected to see whether other parts are assembled in place and whether the port on the connecting tube is flat.

[0058] At the same time, it is also necessary to apply glue on the outer edge of the protective cover, that is, on the connection edge, manually or under the action of a mechanical device.

[0059] The riveting operation adopts a rotary riveting machine, under the action of which the inner port at the upper part of the connecting tube can be stably and quickly formed into a positioning edge.

[0060] After the riveting operation is completed, the connecting edge of the protective cover and the outer ring of the bearing are stably positioned, finally completing the final assembly process of the motor.

[0061] Of course, according to the actual situation, the riveting operation can also be processed by punch riveting.

[0062] In the motor, the edge of the protective cover and the outer ring of the bearing are positioned between the positioning edge and the retaining edge. Therefore, both the bearing and the protective cover can be stably positioned, and the stability is relatively high.

[0063] Since the edge of the protective cover and the bearing are completely covered in the protective cover, the structure is relatively compact and has high practical value.

[0064] In addition, the motor is assembled by riveting, which can quickly and stably form the positioning edge at the upper end of the connecting tube, making the entire assembly process fast and accurate.

[0065] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. A motor comprising a motor assembly, a housing, and a protective cover, wherein the housing has a cavity inside, the motor assembly is connected to the housing, the upper end of a rotating shaft in the motor assembly extends out of the upper portion of the housing, the protective cover is connected to the upper end of the housing and covers the upper end of the rotating shaft, and is characterized in that: The upper end of the shell has a cylindrical connecting tube and a bearing. The inner ring of the bearing is fixedly connected to the rotating shaft, and the outer ring of the bearing is fixedly connected to the connecting tube. The protective cover is positioned at the connecting tube and covers the bearing.

2. The motor according to claim 1, characterized in that The inner port at the lower end of the connecting tube has an annular protruding stop edge, the inner port at the upper end of the connecting tube has an annular protruding positioning edge, the lower end of the bearing outer ring rests on the stop edge, and the edge of the protective cover is tightly pressed between the positioning edge and the upper end of the bearing outer ring.

3. The motor according to claim 2, characterized in that The connecting tube, the retaining edge and the positioning edge are an integrated structure.

4. The motor according to claim 3, characterized in that The wall thickness dimension of the connecting tube is A, the thickness dimension of the retaining edge is B, and the thickness dimension of the positioning edge is C, and the above B>A>C.

5. The motor according to claim 4, characterized in that The connecting tube, the retaining edge, the positioning edge and the outer shell are all integrated structures.

6. The motor according to claim 5, characterized in that The protective cover is in the shape of a truncated cone and has a cavity inside. The small end of the protective cover is the upper end and is closed. The large end of the protective cover is the lower end and is the connecting end. The connecting end is positioned between the positioning edge and the outer ring of the bearing.

7. The motor according to claim 6, characterized in that The outer end of the connection end is provided with an annular protruding connection edge, the lower portion of the connection edge is in contact with the end surface of the bearing outer ring, and the positioning edge is buckled at the upper portion of the connection edge.

8. The motor according to claim 7, characterized in that The lower end of the shell is provided with a protruding flange.

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