Micro motor capable of reducing rotation shaft wear
By incorporating a combination structure of oil-absorbing cotton and conductor with ring-shaped cotton on the micro motor, the problem of unsatisfactory lubrication of the micro motor is solved, achieving effective lubrication of the output shaft and control of lubricating oil flow, reducing wear and improving performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING BORMAN AUTOMOBILE DRIVE SYST CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-07
AI Technical Summary
Existing micro motors are not adequately lubricated by micro pumps during use, resulting in excessive oil output, heat generation, reduced performance, and increased wear.
It adopts a combination structure of oil-absorbing cotton and conductor with ring cotton. By heating and guiding the lubricating oil in the oil box, it can effectively lubricate the output shaft, reduce friction and wear, and prevent contamination through the protective cover.
It effectively reduces friction and wear between the output shaft and the inner wall of the micro motor, improves the fluidity and performance of the lubricating oil, and prevents lubricating oil contamination.
Smart Images
Figure CN224473161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of micro motor technology, and in particular to a micro motor that can reduce shaft wear. Background Technology
[0002] A search revealed a Chinese patent with authorization number CN222480168U, which discloses a low-wear micro motor, including a base and an oil spraying assembly. The micro motor body is mounted on the base, and the oil spraying assembly is located on the outside of the micro motor body. The oil spraying assembly includes an oil box, nozzles, a connecting pipe, an oil tank, a micro pump, and a sealing plug. The connecting pipe is fixedly connected to the top of the oil tank, and one end of the connecting pipe is fixedly connected to the oil box. Multiple sets of nozzles are fixedly connected to the inner wall of the oil box in a ring array.
[0003] The low-wear micro motor in the aforementioned patent has the following shortcomings: Although an oil tank and a micro pump are provided on the surface of the micro motor to lubricate the output end of the micro motor, the micro pump is not ideal during use. Moreover, the micro pump can lead to excessive oil output, thereby reducing the effectiveness of the device. At the same time, it will also generate more heat during use, which will also affect the micro motor. Therefore, the above problems need to be solved. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a micro motor that can reduce shaft wear.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A micro motor capable of reducing shaft wear includes a micro motor body, with heat sinks fixedly connected to both symmetrical sides of the micro motor body surface, an oil box fixedly connected to the top of the micro motor body, an output shaft mounted at one end of the micro motor body, and a first fixing ring fixedly connected to the end of the micro motor body surface near the output shaft. The first fixing ring has an annular groove on its surface and an opening inside the first fixing ring. The output shaft is located at the center of the opening, and an annular cotton is installed inside the opening. The arrangement of the oil-absorbing cotton, conductor, and annular cotton facilitates the pouring of lubricating oil stored in the oil box into the first fixing ring during use, thereby facilitating lubrication of the output shaft surface and reducing wear caused by friction between the output shaft and the inner wall of the micro motor body.
[0007] Preferably, the oil box has an installation port at the top, a cover plate is installed inside the installation port, an oil filling port is opened on the surface of the cover plate, a sealing cap is fixedly connected inside the oil filling port, and a fixing rod is vertically fixedly connected to each of the four corners inside the oil box. Oil-absorbing cotton is provided inside the oil box, and the oil-absorbing cotton is attached to the inner wall of the oil box. The oil-absorbing cotton is located on the surface of the four fixing rods. A fixing box is fixedly connected to the surface of the micro motor body near the output shaft. One end of the fixing box is fixedly connected to the surface of the oil box, and the other end of the fixing box is fixedly connected to the surface of the first fixing ring, which facilitates the addition of lubricating oil inside the oil box, and the oil-absorbing cotton can absorb the lubricating oil added inside the oil box.
[0008] Furthermore, a connecting groove is vertically formed on the arc surface of the first fixing ring. The bottom end of the fixing box is disposed on the surface of the connecting groove. The connecting groove is connected to the inside of the groove. A conductor is disposed inside the fixing box. The top end of the conductor is fixedly connected to the surface of the oil-absorbing cotton. The conductor passes through the inside of the connecting groove. The bottom end of the conductor is fixedly connected to the surface of the annular cotton. This is used to guide the lubricating oil absorbed inside the oil-absorbing cotton, so that the lubricating oil can be introduced into the inside of the annular cotton through the conductor, thereby allowing the lubricating oil to adhere to the surface of the output shaft.
[0009] Preferably, a sealing ring is provided inside the annular groove, and the sealing ring matches the inside of the annular groove. A protective cover is slidably sleeved on the surface of the first fixing ring, and the protective cover is slidably sleeved on the surface of the output shaft. The protective cover is disposed on the surface of the sealing ring, and a second fixing ring is sleeved on the surface of the protective cover. Multiple fixing pieces are fixedly connected to the surface of the second fixing ring. The second fixing ring is in contact with the end of the micro motor body near the output shaft. Multiple mounting holes are provided on the end of the micro motor body near the output shaft. Bolts are slidably sleeved inside the multiple fixing pieces, and the multiple bolts respectively cooperate with the multiple mounting holes to seal the connection of the output shaft at one end of the micro motor body, thereby improving the protection of the annular cotton.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. When in use, the sealing cover can be opened, and then lubricating oil can be added to the inside of the oil box. The lubricating oil can be absorbed by the oil-absorbing cotton and then enter the inside of the annular cotton through the conductor. During use, the lubricating oil on the surface of the annular cotton can be applied to the surface of the output shaft, thereby reducing the wear caused by friction between the output shaft and the inner wall of the micro motor body.
[0012] 2. During use, the device generates a significant amount of heat on its surface. This heat is then transferred to the oil box to heat the lubricating oil inside, thereby increasing its fluidity. The heated lubricating oil can then more easily pass through the absorbent cotton, conductor, and annular cotton. When the motor is no longer in use, the temperature of the lubricating oil inside the oil box decreases, which also reduces its fluidity and improves its permeability, thus enhancing the device's performance. Attached Figure Description
[0013] Figure 1 This is a front view of a micro motor that can reduce shaft wear according to the present invention.
[0014] Figure 2 This is a schematic diagram of the surface structure of a micro motor that can reduce shaft wear according to the present invention.
[0015] Figure 3 This is a cross-sectional view of the internal structure of the oil box of a micro motor that can reduce shaft wear according to this utility model.
[0016] Figure 4 This is a partial structural cross-sectional view of a micro motor that can reduce shaft wear according to the present invention.
[0017] Figure 5 This is an exploded view of the surface structure of a micro motor that can reduce shaft wear according to this utility model.
[0018] In the diagram: 1. Micro motor body; 11. Output shaft; 12. Heat sink; 13. First fixing ring; 14. Connecting groove; 15. Annular groove; 16. Groove opening; 17. Sealing ring; 18. Mounting hole; 2. Oil box; 21. Mounting port; 22. Fixing rod; 23. Cover plate; 24. Sealing cover; 3. Fixing box; 4. Protective cover; 41. Second fixing ring; 42. Fixing piece; 43. Bolt; 5. Oil-absorbing cotton; 51. Conductor; 52. Annular cotton. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figures 1-5A micro motor capable of reducing shaft wear includes a micro motor body 1. Heat sinks 12 are symmetrically fixed to both sides of the surface of the micro motor body 1. An oil box 2 is fixedly connected to the top of the micro motor body 1. An output shaft 11 is mounted at one end of the micro motor body 1. A first fixing ring 13 is fixedly connected to the surface of the micro motor body 1 near the end of the output shaft 11. An annular groove 15 is provided on the surface of the first fixing ring 13. A slot 16 is provided inside the first fixing ring 13. The output shaft 11 is located at the center inside the slot 16. An annular cotton 52 is installed inside the slot 16. The arrangement of the oil-absorbing cotton 5, conductor 51, and annular cotton 52 facilitates the pouring of lubricating oil stored in the oil box 2 into the first fixing ring 13 during use, thereby facilitating lubrication of the surface of the output shaft 11 and reducing wear caused by friction between the output shaft 11 and the inner wall of the micro motor body 1.
[0021] In this utility model, the top of the oil box 2 is provided with an installation port 21, and a cover plate 23 is installed inside the installation port 21. The surface of the cover plate 23 is provided with an oil filling port, and a sealing cap 24 is fixedly connected inside the oil filling port. Fixed rods 22 are vertically fixedly connected to the four corners inside the oil box 2. Oil absorbent cotton 5 is provided inside the oil box 2. The oil absorbent cotton 5 is attached to the inner wall of the oil box 2 and is located on the surface of the four fixed rods 22. A fixed box 3 is fixedly connected to one end of the surface of the micro motor body 1 near the output shaft 11. One end of the fixed box 3 is fixedly connected to the surface of the oil box 2, and the other end of the fixed box 3 is fixedly connected to the surface of the first fixed ring 13, which facilitates the addition of lubricating oil inside the oil box 2. At the same time, the oil absorbent cotton 5 can absorb the lubricating oil added inside the oil box 2.
[0022] In this utility model, a connecting groove 14 is vertically formed on the arc surface of the first fixing ring 13. The bottom end of the fixing box 3 is set on the surface of the connecting groove 14. The connecting groove 14 is connected to the inside of the slot 16. A conductor 51 is set inside the fixing box 3. The top end of the conductor 51 is fixedly connected to the surface of the oil-absorbing cotton 5. The conductor 51 passes through the inside of the connecting groove 14. The bottom end of the conductor 51 is fixedly connected to the surface of the annular cotton 52. It is used to guide the lubricating oil absorbed inside the oil-absorbing cotton 5, so that the lubricating oil can be introduced into the inside of the annular cotton 52 through the conductor 51, thereby allowing the lubricating oil to adhere to the surface of the output shaft 11.
[0023] In this invention, a sealing ring 17 is provided inside the annular groove 15, and the sealing ring 17 matches the interior of the annular groove 15. A protective cover 4 is slidably sleeved on the surface of the first fixing ring 13, and the protective cover 4 is slidably sleeved on the surface of the output shaft 11. The protective cover 4 is set on the surface of the sealing ring 17, and a second fixing ring 41 is sleeved on the surface of the protective cover 4. Multiple fixing pieces 42 are fixedly connected to the surface of the second fixing ring 41. The second fixing ring 41 is in contact with the end of the micro motor body 1 near the output shaft 11. Multiple mounting holes 18 are provided on the end of the micro motor body 1 near the output shaft 11. Bolts 43 are slidably sleeved inside the multiple fixing pieces 42. The multiple bolts 43 are respectively engaged with the multiple mounting holes 18 to seal the connection of the output shaft 11 at one end of the micro motor body 1, thereby improving the protection of the annular cotton 52.
[0024] Working principle: In actual use, the oil-absorbing cotton 5, conductor 51, and annular cotton 52 facilitate the pouring of lubricating oil stored inside the oil box 2 into the first fixing ring 13, thereby lubricating the surface of the output shaft 11 and reducing wear caused by friction between the output shaft 11 and the inner wall of the micro motor body 1. During use, the sealing cover 24 can be opened, and lubricating oil can be added to the oil box 2. The lubricating oil is absorbed by the oil-absorbing cotton 5 and then enters the annular cotton 52 through the conductor 51. During use, the lubricating oil on the surface of the annular cotton 52 is applied to the output shaft 11. 1. Surface: During use, the surface of the device generates a significant amount of heat. This heat is then transferred to the oil box 2, which heats the lubricating oil inside, increasing its fluidity. The heated lubricating oil then passes more easily through the oil-absorbing cotton 5, conductor 51, and annular cotton 52. When the motor is no longer in use, the temperature of the lubricating oil inside the oil box 2 decreases, reducing its fluidity and thus improving its permeability. This enhances the device's performance. Furthermore, the protective cover 4 protects the annular cotton 52 from contamination.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A micro motor capable of reducing shaft wear, comprising a micro motor body (1), characterized in that, Heat sinks (12) are fixedly connected to both sides of the surface of the micro motor body (1). An oil box (2) is fixedly connected to the top of the micro motor body (1). An output shaft (11) is installed at one end of the micro motor body (1). A first fixing ring (13) is fixedly connected to the end of the micro motor body (1) near the output shaft (11). An annular groove (15) is provided on the surface of the first fixing ring (13). A slot (16) is provided inside the first fixing ring (13). The output shaft (11) is located at the center inside the slot (16). An annular cotton (52) is installed inside the slot (16).
2. The micro motor capable of reducing shaft wear according to claim 1, characterized in that, The oil box (2) has an installation port (21) on the top. A cover plate (23) is installed inside the installation port (21). An oil filling port is opened on the surface of the cover plate (23). A sealing cover (24) is fixedly connected inside the oil filling port. A fixing rod (22) is vertically fixedly connected to each of the four corners inside the oil box (2).
3. The micro motor capable of reducing shaft wear according to claim 2, characterized in that, The oil box (2) is provided with oil-absorbing cotton (5) inside. The oil-absorbing cotton (5) is attached to the inner wall of the oil box (2). The oil-absorbing cotton (5) is provided on the surface of four fixed rods (22). A fixed box (3) is fixedly connected to one end of the surface of the micro motor body (1) near the output shaft (11). One end of the fixed box (3) is fixedly connected to the surface of the oil box (2), and the other end of the fixed box (3) is fixedly connected to the surface of the first fixed ring (13).
4. The micro motor capable of reducing shaft wear according to claim 3, characterized in that, The first fixing ring (13) has a vertically formed connecting groove (14) on its arc surface. The bottom of the fixing box (3) is set on the surface of the connecting groove (14). The connecting groove (14) is connected to the inside of the slot (16). The fixing box (3) has a conductor (51) inside. The top end of the conductor (51) is fixedly connected to the surface of the oil-absorbing cotton (5). The conductor (51) passes through the inside of the connecting groove (14). The bottom end of the conductor (51) is fixedly connected to the surface of the annular cotton (52).
5. The micro motor capable of reducing shaft wear according to claim 1, characterized in that, A sealing ring (17) is provided inside the annular groove (15). The sealing ring (17) matches the inside of the annular groove (15). A protective cover (4) is slidably sleeved on the surface of the first fixing ring (13). The protective cover (4) is slidably sleeved on the surface of the output shaft (11). The protective cover (4) is provided on the surface of the sealing ring (17).
6. The micro motor capable of reducing shaft wear according to claim 5, characterized in that, The protective cover (4) is fitted with a second fixing ring (41), and a plurality of fixing pieces (42) are fixedly connected to the surface of the second fixing ring (41). The second fixing ring (41) is in contact with the end of the micro motor body (1) near the output shaft (11). A plurality of mounting holes (18) are provided on the end of the micro motor body (1) near the output shaft (11). Bolts (43) are slidably fitted inside the plurality of fixing pieces (42), and the plurality of bolts (43) respectively cooperate with the plurality of mounting holes (18).