Starting motor for high-power motorcycle

Abstract

The utility model discloses a starting motor for a high-power motorcycle, which relates to the technical field of motors and comprises a casing, two ends of the casing are sleeved with a front end cover and a rear end cover respectively, the rear end cover and the front end cover are respectively provided with two threaded holes, screws are arranged in the four threaded holes in a threaded manner, and the front end cover and the rear end cover are connected with the casing. A magnetic steel support is fixedly arranged in the machine shell. Through the arrangement of the abutting columns, the connecting shafts, the conical blocks, the wedge-shaped rods, the thermal expansion metal rods and the sleeve rods, the internal heat of the machine shell is judged according to the thermal expansion metal rods so as to adapt to expansion, the number of the abutting columns moving upwards is correspondingly adjusted, and therefore the radial internal clearance reduced by heating expansion of the output shaft is compensated; the output shaft can still keep the optimal radial clearance at the high temperature, vibration is reduced, the running stability is improved, the pitting corrosion and abrasion speed is reduced, and therefore the service life of the output shaft and the service life of the bearing are prolonged.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a high-power motorcycle starter motor. Background Technology

[0002] With the progress of the times and the rapid development of transportation, the sales of electric motorcycles have increased significantly, leading to the development of high-performance electric motorcycles. The peak power of motors has exceeded 20kW. As living standards improve, motorcycles are no longer just a means of transportation. People pay more attention to the performance and speed of motorcycles. Therefore, more and more high-power motorcycles are being manufactured and are becoming popular.

[0003] The motors of existing electric motorcycles have high power, which causes their internal temperature to rise rapidly. As the temperature rises, the output shaft expands thermally, which reduces the radial clearance of the bearing. This can lead to problems such as internal thermal runaway or even pitting, affecting the bearing's lifespan. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to provide a high-power motorcycle starter motor to solve the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-power motorcycle starter motor, comprising a housing, with a front cover and a rear cover fitted onto both ends of the housing. Each of the front and rear covers has two threaded holes, and screws are threaded into each of the four threaded holes. A magnetic support is fixedly installed inside the housing, and several magnetic blocks are arranged in a circular array on the magnetic support. Bearings are rotatably connected to the center of each of the front and rear covers. Output shafts are rotatably mounted inside the two bearings, and rotors are fixedly mounted on the output shafts. Oil seals are provided near the bearings on the front and rear covers. A lubricating oil cylinder is fixedly mounted on the rear cover. Several oil storage mechanisms are provided inside the rear cover, and an adjustment mechanism is provided inside the rear cover.

[0006] Preferably, the bearing edge of the rear end cover is provided with a chamfer.

[0007] Preferably, the adjusting mechanism includes a plurality of abutting posts, a plurality of connecting shafts, a plurality of conical blocks, a wedge rod, a thermally expanding metal rod, and a sleeve rod. The sleeve rod is fixedly disposed inside the rear end cover, the thermally expanding metal rod is disposed inside the sleeve rod, the wedge rod is inserted into the sleeve rod, the plurality of abutting posts are slidably disposed inside the rear end cover, the plurality of connecting shafts are fixedly disposed on the top of the corresponding abutting posts, and the plurality of conical blocks are fixedly disposed on the top of the connecting shafts.

[0008] Preferably, each of the oil storage mechanisms includes a connecting pipe, a conical groove, several vertical grooves, and an annular groove. The conical grooves are arranged in an array inside the rear end cover. The two ends of the connecting pipes are respectively connected to the lubricating oil cylinder and the corresponding conical groove. The rear end cover is provided with several cylindrical grooves. The cylindrical grooves are located below the conical grooves and are used for sliding of the abutment column. The vertical grooves are symmetrically arranged in pairs on the side wall of the cylindrical grooves. The annular grooves are connected and arranged on the side wall of the cylindrical grooves.

[0009] Preferably, the vertical grooves are interconnected with the annular grooves and the conical grooves.

[0010] Preferably, the bottom of each of the abutting columns is provided with a conical surface.

[0011] Preferably, the bottom of several of the conical blocks is provided with a conical surface that abuts against the wedge-shaped rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This utility model, through the setting of several abutting columns, several connecting shafts, several conical blocks, wedge rods, thermal expansion metal rods and sleeve rods, realizes the expansion of the internal heat of the housing according to the thermal expansion metal rods, and adjusts the number of abutting columns that move upwards accordingly, thereby compensating for the reduced radial clearance of the output shaft due to thermal expansion, so that the output shaft can still maintain the optimal radial clearance at high temperature, reduce vibration, increase running stability, and reduce the speed of pitting and wear, thereby improving the service life of the output shaft and bearings;

[0014] (2) By setting up connecting pipes, conical grooves, several vertical grooves and annular grooves, this utility model realizes the adaptive replenishment of lubricating oil based on the characteristic that the higher the temperature, the faster the lubricating oil oxidizes and fails, so that the internal lubrication effect can still be guaranteed when the high-power motor runs at high speed. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a cross-sectional view of the adjustment mechanism of this utility model.

[0019] In the diagram: 1. Housing; 2. Front cover; 3. Rear cover; 4. Screw; 5. Adjustment mechanism; 51. Abutting post; 52. Connecting shaft; 53. Conical block; 54. Wedge rod; 55. Thermal expansion metal rod; 56. Sleeve rod; 6. Lubricating oil cylinder; 61. Connecting pipe; 62. Conical groove; 63. Vertical groove; 64. Annular groove; 65. Conical surface; 7. Bearing; 8. Magnet bracket; 9. Magnet block; 10. Rotor; 11. Output shaft. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides an embodiment of a high-power motorcycle starter motor, comprising a housing 1, with a front cover 2 and a rear cover 3 fitted onto both ends of the housing 1. Both the rear cover 3 and the front cover 2 have two threaded holes, and screws 4 are threaded into each of the four threaded holes. A magnet bracket 8 is fixedly installed inside the housing 1, and several magnet blocks 9 are arranged in a circular array on the magnet bracket 8. Bearings 7 are rotatably connected to the center of both the front cover 2 and the rear cover 3. An output shaft 11 is rotatably mounted inside the two bearings 7, and a rotor 10 is fixedly mounted on the output shaft 11. Oil seals are provided near the bearings 7 on both the front cover 2 and the rear cover 3. A lubricating oil cylinder 6 is fixedly mounted on the rear cover 3. Several oil storage mechanisms are provided inside the rear cover 3, and an adjustment mechanism 5 is provided inside the rear cover 3. After being powered on, the internal rotor 10 forms an electromagnet and rotates under the action of the magnet block 9. It also rotates through the commutator set in the rear end cover 3. This is existing technology and will not be elaborated on here. When the power output increases, the rotor 10 drives the output shaft 11 to rotate at an increased speed. At this time, more heat is generated inside the housing 1, which drives the adjustment mechanism 5 to extend and adjust the radial clearance of the bearing 7. The extension of the adjustment mechanism 5 also drives the oil storage mechanism to replenish oil.

[0022] Specifically, the bearing 7 edge of the rear cover 3 is provided with an angle.

[0023] Specifically, the adjustment mechanism 5 includes a plurality of abutment posts 51, a plurality of connecting shafts 52, a plurality of conical blocks 53, a wedge rod 54, a thermally expanding metal rod 55, and a sleeve rod 56. The sleeve rod 56 is fixedly disposed inside the rear end cover 3, the thermally expanding metal rod 55 is disposed inside the sleeve rod 56, the wedge rod 54 is inserted into the sleeve rod 56, the plurality of abutment posts 51 are slidably disposed inside the rear end cover 3, the plurality of connecting shafts 52 are fixedly disposed on the top of the corresponding abutment posts 51, and the plurality of conical blocks 53 are fixedly disposed on the top of the connecting shafts 52. The thermal expansion of the metal rod 55, when heated, causes the wedge rod 54 to extend. It is worth noting that the thermal expansion metal rod 55 is made of aluminum alloy, but is not limited to this material. Users can replace the thermal expansion metal rod 55 with materials of different thermal expansion coefficients according to their needs. The movement of the wedge rod 54 abuts against the conical block 53, causing the conical block 53 to move upward. The conical block 53 drives the connecting shaft 52 and the abutting column 51 to move upward, thereby increasing the radial clearance of the bearing 7. This achieves the function of adjusting the expansion of the metal rod 55 according to the heat inside the housing 1, and adjusting the upward movement of the abutting column 51 accordingly. This compensates for the reduction in radial clearance of the output shaft 11 due to thermal expansion, so that the output shaft 11 can still maintain the optimal radial clearance at high temperatures, reducing vibration, increasing operational stability, and reducing the rate of pitting and wear, thereby improving the service life of the output shaft 11 and the bearing 7.

[0024] Specifically, each of the aforementioned oil storage mechanisms includes a connecting pipe 61, a conical groove 62, several vertical grooves 63, and an annular groove 64. The conical grooves 62 are arranged in an array inside the rear end cover 3. The two ends of the connecting pipes 61 are respectively connected to the lubricating oil cylinder 6 and the corresponding conical groove 62. The rear end cover 3 is provided with several cylindrical grooves. The cylindrical grooves are located below the conical grooves 62 and are used for the sliding of the abutment column 51. The vertical grooves 63 are symmetrically arranged in pairs on the side wall of the cylindrical grooves. The annular grooves 64 are connected and arranged on the side wall of the cylindrical grooves. By moving the conical block 53 upward to abut against the conical groove 62, the connecting pipe 61 stops supplying lubricating oil to the annular groove 64 and the vertical groove 63. Furthermore, the upward movement of the abutting column 51 causes the annular groove 64 to disengage, allowing the lubricating oil stored in the annular groove 64 and the vertical groove 63 to flow onto the bearing 7, thus lubricating the bearing 7 and the output shaft 11. This achieves adaptive replenishment of lubricating oil based on the characteristic that lubricating oil oxidizes and fails faster at higher temperatures, thereby ensuring the internal lubrication effect even when the high-power motor is running at high speed.

[0025] Specifically, the vertical grooves 63 are interconnected with the annular groove 64 and the conical groove 62. By moving the abutment post 51 upward, the conical groove 62 moves to the annular groove 64, allowing the lubricating oil inside the annular groove 64 to flow out onto the bearing 7 and the output shaft 11, thus lubricating the bearing 7 and the output shaft 11.

[0026] Specifically, each of the aforementioned abutment posts 51 has a conical surface 65 at its bottom.

[0027] Specifically, the bottom of several of the conical blocks 53 is provided with a conical surface 65 that abuts against the wedge rod 54.

[0028] Working principle: After being powered on, the internal rotor 10 forms an electromagnet, which rotates under the action of the magnet block 9. The rotation is also facilitated by a commutator installed in the rear cover 3. This is existing technology and will not be elaborated further. When the electrical output increases, the rotor 10 drives the output shaft 11 to rotate at an increased speed. At this time, more heat is generated inside the casing 1. This heat causes the thermal expansion metal rod 55 to expand, leading to the extension of the wedge-shaped rod 54. It is worth noting that the thermal expansion metal rod 55 is made of aluminum alloy, but is not limited to this material. Users can replace it with a material with a different coefficient of thermal expansion as needed. The expansion metal rod 55 is made of material that moves to abut against the conical block 53 via the wedge rod 54, causing the conical block 53 to move upward. The conical block 53 drives the connecting shaft 52 and the abutting column 51 to move upward, thereby increasing the radial clearance of the bearing 7. As the conical block 53 moves upward to abut against the conical groove 62, the connecting pipe 61 stops supplying lubricating oil to the annular groove 64 and the vertical groove 63. Furthermore, the abutting column 51 moves upward, causing the annular groove 64 to disengage from the abutment, allowing the lubricating oil stored in the annular groove 64 and the vertical groove 63 to flow onto the bearing 7, thus lubricating the bearing 7 and the output shaft 11.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-power motorcycle starter motor, characterized in that: The device includes a housing (1), with a front cover (2) and a rear cover (3) fitted at both ends. The rear cover (3) and the front cover (2) each have two threaded holes, and screws (4) are threaded into each of the four threaded holes. A magnetic support (8) is fixedly installed inside the housing (1). Several magnetic blocks (9) are arranged in a circular array on the magnetic support (8). A bearing (7) is rotatably connected to the center of the front cover (2) and the rear cover (3). An output shaft (11) is rotatably installed inside the two bearings (7). A rotor (10) is fixedly installed on the output shaft (11). An oil seal is installed near the bearing (7) on the front cover (2) and the rear cover (3). A lubricating oil cylinder (6) is fixedly installed on the rear cover (3). Several oil storage mechanisms are installed inside the rear cover (3). An adjustment mechanism (5) is installed inside the rear cover (3).

2. The high-power motorcycle starter motor according to claim 1, characterized in that: The bearing (7) edge of the rear cover (3) is provided with an angle.

3. A high-power motorcycle starter motor according to claim 2, characterized in that: The adjustment mechanism (5) includes several abutment posts (51), several connecting shafts (52), several conical blocks (53), wedge rods (54), thermal expansion metal rods (55), and sleeve rods (56). The sleeve rods (56) are fixedly installed inside the rear end cover (3). The thermal expansion metal rods (55) are installed inside the sleeve rods (56). The wedge rods (54) are inserted into the sleeve rods (56). Several abutment posts (51) are slidably installed inside the rear end cover (3). Several connecting shafts (52) are fixedly installed on the top of the corresponding abutment posts (51). Several conical blocks (53) are fixedly installed on the top of the connecting shafts (52).

4. A high-power motorcycle starter motor according to claim 3, characterized in that: Each of the aforementioned oil storage mechanisms includes a connecting pipe (61), a conical groove (62), several vertical grooves (63), and an annular groove (64). Several conical grooves (62) are arranged in an array inside the rear end cover (3). Both ends of several connecting pipes (61) are connected to the lubricating oil cylinder (6) and the corresponding conical groove (62), respectively. Several cylindrical grooves are provided inside the rear end cover (3). Several cylindrical grooves are located below the conical grooves (62) and are used for the sliding of the abutment column (51). Several vertical grooves (63) are symmetrically arranged in pairs on the side wall of the cylindrical grooves. Several annular grooves (64) are connected and arranged on the side wall of the cylindrical grooves.

5. A high-power motorcycle starter motor according to claim 4, characterized in that: Several of the vertical grooves (63) are interconnected with the annular groove (64) and the conical groove (62).

6. A high-power motorcycle starter motor according to claim 3, characterized in that: The bottom of several of the aforementioned abutment columns (51) is provided with a conical surface (65).

7. A high-power motorcycle starter motor according to claim 6, characterized in that: The bottom of several of the conical blocks (53) is provided with a conical surface (65) that abuts against the wedge rod (54).

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