High-wear-resistance micro motor shaft structure

Abstract

The utility model discloses a highly wear-resistant micro motor shaft structure, and relates to the technical field of motor shafts. The high-wear-resistance micro motor shaft structure comprises a motor shaft, a connecting shaft and a connecting column, four second arc-shaped plates are integrally formed on the front surface of the motor shaft, second through holes are formed in the four second arc-shaped plates, positioning holes are formed in the front surface of the motor shaft, and four mounting grooves are formed in the outer surface of the connecting column. And seventh through holes are formed in the inner walls of the four mounting grooves, the four seventh through holes communicate with one another, sixth through holes are formed in the front surfaces of the connecting columns, the sixth through holes penetrate out of the rear surfaces of the connecting columns, first fixing columns are inserted into the left and right corresponding seventh through holes, and second fixing columns are inserted into the left and right corresponding seventh through holes. By arranging the connecting column and the connecting shaft, the wear resistance of the micro motor shaft can be effectively improved, the micro motor shaft is effectively prevented from being damaged due to large wear after being used for a long time, and the service life of the micro motor shaft is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft technology, and in particular to a highly wear-resistant micro motor shaft structure. Background Technology

[0002] Micro motors refer to motors with a diameter less than 160mm or a rated power less than 750mW. There are many types of micro motors, broadly categorized into 13 major types: DC motors, AC motors, self-adjusting angle motors, stepper motors, rotary transformers, shaft angle encoders, AC / DC universal motors, tachogenerators, inductive synchros, linear motors, piezoelectric motors, motor units, and other special motors. Micro motors integrate high-tech industries from multiple disciplines, including motors, microelectronics, power electronics, computers, automatic control, precision machinery, and new materials. The application of electronic and new materials technologies, in particular, has promoted the advancement of micro motor technology. Generally, micro motors require a micro motor shaft to transmit power during operation. However, existing micro motor shafts are prone to damage after prolonged use due to significant wear between the shaft surface and transmission components, leading to the complete scrapping of the shaft and greatly reducing its service life and utilization rate. Therefore, a highly wear-resistant micro motor shaft structure is needed. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a highly wear-resistant micro motor shaft structure. This can solve the problem that existing micro motor shafts are prone to damage after long-term transmission use due to large wear between the motor shaft surface and the transmission components, which leads to the scrapping of the entire motor shaft and greatly reduces the service life and utilization rate of the micro motor shaft.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a highly wear-resistant micro motor shaft structure, comprising a motor shaft, a connecting shaft, and a connecting column;

[0005] The front surface of the motor shaft is integrally formed with four second arc-shaped plates, each of which has a second through hole. The front surface of the motor shaft has a positioning hole, and the outer surface of the connecting column has four mounting grooves. The inner wall of each of the four mounting grooves has a seventh through hole, and the four seventh through holes are interconnected.

[0006] Preferably, the front surface of the connecting post has a fifth through hole, which extends through the rear surface of the connecting post. The two corresponding seventh through holes on the left and right are fitted with first fixing posts. The upper and lower surfaces of the first fixing post have a third through hole in the middle, and the inner wall of the third through hole is fitted with a second fixing post.

[0007] Preferably, both the second fixing post and the first fixing post have two first through holes, and the rear surfaces of the second fixing post and the first fixing post have two arc-shaped grooves.

[0008] Preferably, a fourth through hole is provided at the midpoint between the front and rear surfaces of the second fixing post and the first fixing post, and a fifth through hole is provided on the front surface of the connecting post, the fifth through hole penetrating the rear surface of the connecting post.

[0009] Preferably, a positioning rod is fixedly connected to the rear surface of the connecting shaft, and four first arc-shaped plates arranged in a cross shape are fixedly connected to the outer surface of the connecting shaft, each of the four first arc-shaped plates having a threaded hole.

[0010] Preferably, the inner walls of the four threaded holes are threaded with fixing screws, and the rear surfaces of the four fixing screws are fixedly connected with circular blocks.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The highly wear-resistant micro motor shaft structure can effectively increase the wear resistance of the micro motor shaft by setting connecting columns and connecting shafts, effectively avoiding damage to the micro motor shaft due to excessive wear after long-term use, and greatly improving the service life of the micro motor shaft.

[0013] (2) With this highly wear-resistant micro motor shaft structure, when it is necessary to replace the connecting column and the connecting shaft, the user only needs to remove the four fixing nuts and then pull out the four fixing screws to replace the connecting column and the connecting shaft, which improves the convenience of replacing the connecting column and the connecting shaft. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the connection between the positioning rod and the connecting column of this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection between the positioning rod and the connecting shaft of this utility model;

[0018] Figure 4 This is a schematic diagram of the surface of the connecting column of this utility model;

[0019] Figure 5 This is a schematic diagram of the front surface of the motor shaft of this utility model.

[0020] Reference numerals in the attached drawings: 1. Motor shaft; 2. Circular block; 3. First fixing post; 4. Fixing screw; 5. First arc-shaped plate; 6. Connecting shaft; 7. Connecting post; 8. Threaded hole; 9. First through hole; 10. Arc-shaped groove; 11. Second through hole; 12. Second arc-shaped plate; 13. Positioning rod; 14. Mounting groove; 15. Third through hole; 16. Fourth through hole; 17. Second fixing post; 18. Fifth through hole; 19. Seventh through hole; 20. Positioning hole. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a highly wear-resistant micro motor shaft structure includes a motor shaft 1, a connecting shaft 6, and a connecting column 7. The front surface of the motor shaft 1 is integrally formed with four second arc-shaped plates 12, each of which has a second through hole 11. The front surface of the motor shaft 1 has a positioning hole 20. The outer surface of the connecting column 7 has four mounting grooves 14, and the inner wall of each of the four mounting grooves 14 has a seventh through hole 19, which are interconnected.

[0026] Furthermore, a fifth through hole 18 is provided on the front surface of the connecting post 7, and the fifth through hole 18 extends through the rear surface of the connecting post 7. A first fixing post 3 is inserted into the two corresponding seventh through holes 19 on the left and right. A third through hole 15 is provided at the middle position of the upper and lower surfaces of the first fixing post 3, and a second fixing post 17 is inserted into the inner wall of the third through hole 15.

[0027] Furthermore, both the second fixing post 17 and the first fixing post 3 have two first through holes 9, and the rear surfaces of the second fixing post 17 and the first fixing post 3 have two arc-shaped grooves 10.

[0028] Furthermore, a fourth through hole 16 is provided at the midpoint between the front and rear surfaces of the second fixing post 17 and the first fixing post 3, and a fifth through hole 18 is provided on the front surface of the connecting post 7, with the fifth through hole 18 penetrating the rear surface of the connecting post 7.

[0029] Furthermore, a positioning rod 13 is fixedly connected to the rear surface of the connecting shaft 6, and four first arc-shaped plates 5 arranged in a cross shape are fixedly connected to the outer surface of the connecting shaft 6. Each of the four first arc-shaped plates 5 has a threaded hole 8.

[0030] Furthermore, the inner walls of the four threaded holes 8 are all threaded with fixing screws 4, and the rear surfaces of the four fixing screws 4 are all fixedly connected with circular blocks 2.

[0031] Furthermore, when using a highly wear-resistant micro motor shaft structure, firstly, the connecting post 7 is picked up, and the motor shaft 1 and the connecting shaft 6 are snapped together through the four mounting slots 14 and the four second arc plates 12. Then, the first fixing post 3 is inserted into the two corresponding seventh through holes 19 on the left and right. Then, the second fixing post 17 is inserted into the seventh through hole 19 on the upper side and passes through the inner wall of the third through hole 15, so that the two fourth through holes 16 correspond to each other.

[0032] Among them, pick up the connecting shaft 6, and pass the rear end of the positioning rod 13 through the fifth through hole 18 and the inner wall of the two corresponding fourth through holes 16 in sequence, and finally insert it into the inner wall of the positioning hole 20. Then take out a fixing screw 4, so that the front end of the fixing screw 4 passes through the inner wall of the first through hole 9 and the corresponding threaded hole 8, so that the circular block 2 fits against the inner wall of the arc groove 10, and finally fixes it with the fixing thread. The installation method of the other three fixing screws 4 is the same.

[0033] The connection column 7 and the connection shaft 6 can effectively increase the wear resistance of the micro motor shaft, effectively prevent the micro motor shaft from being damaged due to excessive wear after long-term use, and greatly improve the service life of the micro motor shaft.

[0034] When it is necessary to replace the connecting post 7 and the connecting shaft 6, the user only needs to remove the four fixing nuts and then pull out the four fixing screws 4 to replace the connecting post 7 and the connecting shaft 6, which improves the convenience of replacing the connecting post 7 and the connecting shaft 6.

[0035] Working principle: When using the highly wear-resistant micro motor shaft structure, first pick up the connecting post 7, and use the four mounting slots 14 and the four second arc plates 12 to snap the motor shaft 1 and the connecting shaft 6 together. Then, insert the first fixing post 3 into the two corresponding seventh through holes 19 on the left and right. Then, insert the second fixing post 17 into the seventh through hole 19 on the upper side and pass through the inner wall of the third through hole 15, so that the two fourth through holes 16 correspond to each other.

[0036] Among them, pick up the connecting shaft 6, and pass the rear end of the positioning rod 13 through the fifth through hole 18 and the inner wall of the two corresponding fourth through holes 16 in sequence, and finally insert it into the inner wall of the positioning hole 20. Then take out a fixing screw 4, so that the front end of the fixing screw 4 passes through the inner wall of the first through hole 9 and the corresponding threaded hole 8, so that the circular block 2 fits against the inner wall of the arc groove 10, and finally fixes it with the fixing thread. The installation method of the other three fixing screws 4 is the same.

[0037] The connection post 7 and the connection shaft 6 can effectively increase the wear resistance of the micro motor shaft and effectively prevent the micro motor shaft from being damaged due to excessive wear after long-term use.

[0038] When it is necessary to replace the connecting post 7 and the connecting shaft 6, the user only needs to remove the four fixing nuts and then pull out the four fixing screws 4 to replace the connecting post 7 and the connecting shaft 6.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high wear resistant micro motor shaft structure, characterized in that, Include: Motor shaft (1) and connecting shaft (6) and connecting column (7); The front surface of the motor shaft (1) is integrally formed with four second arc-shaped plates (12), four second arc-shaped plates (12) are provided with second through holes (11), the front surface of the motor shaft (1) is provided with a positioning hole (20), the outer surface of the connecting column (7) is provided with four mounting grooves (14), the inner wall of the four mounting grooves (14) is provided with a seventh through hole (19), and the four seventh through holes (19) are communicated.

2. The high-wear-resistant micro motor shaft structure according to claim 1, characterized in that: The front surface of the connecting column (7) is provided with a fifth through hole (18), the fifth through hole (18) penetrates through the rear surface of the connecting column (7), the inside of two left and right corresponding seventh through holes (19) is inserted with a first fixing column (3), a third through hole (15) is formed in the middle of the upper and lower surfaces of the first fixing column (3), and the second fixing column (17) is inserted into the inner wall of the third through hole (15).

3. The high-wear-resistant micro motor shaft structure according to claim 2, characterized in that: The second fixing column (17) and the first fixing column (3) are provided with two first through holes (9) on the upper and lower surfaces, and the rear surfaces of the second fixing column (17) and the first fixing column (3) are provided with two arc-shaped grooves (10).

4. The high-wear-resistant micro motor shaft structure according to claim 2, characterized in that: The second fixing column (17) and the first fixing column (3) are provided with a fourth through hole (16) in the middle of the front and rear surfaces, the front surface of the connecting column (7) is provided with a fifth through hole (18), and the fifth through hole (18) penetrates through the rear surface of the connecting column (7).

5. The high wear-resistant micro motor shaft structure according to claim 1, characterized in that: The rear surface of the connecting shaft (6) is fixedly connected with a positioning rod (13), and the outer surface of the connecting shaft (6) is fixedly connected with four first arc-shaped plates (5) arranged in cross shape, four first arc-shaped plates (5) are provided with threaded holes (8).

6. The high-wear-resistant micro motor shaft structure according to claim 5, characterized in that: The inner wall of the four threaded holes (8) is threadedly sleeved with a fixing screw (4), and the rear surface of the four fixing screws (4) is fixedly connected with a circular block (2).

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