High-power planetary reduction starter

Abstract

The invention relates to the technical field of starters, and provides a high-power planetary gear-reduction starter which comprises a main shell, a motor is installed at the rear end in the main shell, a spline shaft is installed on the front side of the motor through a planetary gear set, and the front side of the spline shaft is sleeved with a spline sleeve; the front side of the spline sleeve is fixedly connected with a driving gear used for being meshed with a flywheel of an automobile engine, and the spline sleeve moves on the outer wall of the spline shaft through a clutch assembly. The number of the output ends of the branch pipe is two. The axial displacement of the spline housing is used as a trigger signal, the oil outlet is automatically opened while the gear is driven to stretch out for meshing, lubricating oil is accurately conveyed to the gear meshing face through the oil guide channel, lubrication is provided at the moment of meshing, waste caused by continuous oil injection is avoided, and the service life of the gear is prolonged. Friction resistance, impact loss and jamming risks during meshing of the driving gear and the flywheel are reduced.

Description

Technical Field

[0001] This invention relates to the field of starter technology, specifically to a high-power planetary reduction starter. Background Technology

[0002] A vehicle starter typically consists of an electric motor, a transmission mechanism, and a control mechanism. When starting the vehicle engine, the control mechanism of the electric motor generates a rotational torque, which is transmitted to the gear ring on the engine flywheel through the output pinion on the transmission mechanism, thereby driving the engine crankshaft to rotate.

[0003] Existing planetary geared starters, under high-speed, high-power output conditions, experience dryness in their transmission components after prolonged operation. This increases friction and energy consumption, necessitating lubrication. Traditional lubrication methods rely on manual periodic maintenance or simple splash lubrication, lacking an effective automatic triggering lubrication mechanism. This causes excessive frictional resistance during drive gear engagement, leading to jamming and severely impacting starting success rates. Therefore, a high-power planetary geared starter is needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-power planetary reduction starter, which solves the problem that existing starters rely on manual periodic maintenance or simple splash lubrication during maintenance, lacking an effective automatic trigger lubrication mechanism. This causes the drive gear to jam due to excessive frictional resistance when it extends and engages, severely affecting the starting success rate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-power planetary reduction starter includes: The main housing has an electric motor installed at its rear end. A splined shaft is installed on the front side of the electric motor via a planetary gear set. A splined sleeve is fitted on the front side of the splined shaft. A drive gear for meshing with the flywheel of an automobile engine is fixedly connected to the front side of the splined sleeve. The splined sleeve is displaced on the outer wall of the splined shaft via a clutch assembly. The branch pipe has two output ends, and each output end is fixedly connected to a fuel injector head one and a fuel injector head two. The fuel injector head one is located on the inner wall of the planetary gear set, and the fuel injector head two is located on the top side of the spline shaft. The input end of the branch pipe is equipped with a suction cylinder, and the piston part of the suction cylinder is equipped with a traction assembly. The traction assembly performs traction work through the output gear driven by the gearbox. The cylinder has its interior divided into two chambers by a partition plate to hold lubricating oil. One chamber is connected to the input end of a suction cylinder via a pipe, and the other chamber is connected to an oil outlet via a pipe. The oil outlet is located on the top side of the drive gear. When the spline sleeve moves forward, it triggers a trigger valve on the bottom side of the oil outlet, causing lubricating oil to flow out of the oil outlet and drip onto the outer wall of the drive gear, thus preventing the drive gear from seizing when meshing with the flywheel of the car engine.

[0006] Preferably, the gearbox includes a secondary housing fixedly connected to one side of the main housing. A plurality of first-speed gears are rotatably connected inside the secondary housing. A second-speed gear is fixedly connected to the rear side of the first-speed gear. One of the second-speed gears meshes with an output gear. One of the first-speed gears is connected to a spline shaft through an anti-torque gear set. The remaining first-speed gears mesh with the remaining second-speed gears.

[0007] Preferably, the anti-torque gear set includes two meshing input gears, one of which is fixedly connected to the outer wall of the spline shaft, and the other input gear is fixedly connected to a shifting gear on its rear outer periphery, moving in an eccentric circular manner to intermittently shift one of the speed-changing gears.

[0008] Preferably, the traction assembly includes a rotating frame fixedly connected inside the sub-housing housing. A drive shaft is rotatably connected inside the rotating frame. A closed track groove is formed on the outer wall of the drive shaft. A drive sleeve is slidably connected to the rear side of the rotating frame via a spring. The inner wall of the drive sleeve is connected to the track groove via a protrusion. A connecting rod is rotatably connected to the outer wall of the drive sleeve. One end of the connecting rod is rotatably connected to the piston part of the suction cylinder. The suction cylinder is fixedly connected inside the sub-housing housing.

[0009] Preferably, the trigger valve includes a sliding rail fixedly connected to the top front end of the inner wall of the main housing. The bottom end of the sliding rail has an oil guide channel that slides horizontally via a spring. The front end of the oil guide channel has an inclined surface, and the front end of the oil guide channel abuts against a valve sleeve via the inclined surface. The valve sleeve is sleeved on the outer wall of the oil outlet via a spring. A shift fork is fixedly connected to the outer wall of the front end of the spline sleeve. The shift fork is located on the rear side of the oil guide channel. A guide groove is provided on the top side of the oil guide channel to guide the lubricating oil flowing out from the output end of the oil outlet, so that the lubricating oil flows to the drive gear.

[0010] Preferably, the clutch assembly includes an electromagnetic switch installed in the middle of the main housing, with the top end rear side provided with an electromagnetic switch, the top end being rotatably connected to the pull part of the electromagnetic switch, and the bottom end being rotatably connected to the rear outer wall of the spline sleeve.

[0011] Preferably, the speed ratio between the output gear and the spline shaft is 1:30000.

[0012] Preferably, both the output and input ends of the suction cylinder are equipped with one-way valve diaphragms to prevent lubricating oil backflow.

[0013] Preferably, a rotating sleeve is rotatably connected to the front side of the main housing. The rotating sleeve is fitted onto the outer wall of the drive gear so that it can rotate stably after the drive gear is displaced to prevent jamming.

[0014] Preferably, a bearing is fitted at the rear end of the splined shaft, and the outer wall of the bearing is mounted inside the main housing via a mounting bracket.

[0015] Working principle: After the starter motor is started, the electromagnetic switch at the front is pulled by the generated electromagnetic force, causing the spline sleeve at the bottom to move forward in a lever-like manner, along with the structure connected to the spline sleeve. At the same time, the electric motor connected to the power supply drives the spline shaft at the front to rotate through the planetary gear set, and drives the spline sleeve on the outer wall of the spline shaft to rotate synchronously. While the spline sleeve drives the front part of the structure to move forward, it maintains a rotating state. The drive gear extends out of the front end of the main housing and meshes with the flywheel of the car engine to transmit power to the flywheel. After the engine starts, the power is cut off, the electric motor stops, and the electromagnetic switch resets, causing the structure including the drive gear to reset and stop the meshing transmission. During the rotation of the spline shaft, two meshing input gears drive the shifting gear to rotate eccentrically in a circular motion. This intermittently engages adjacent shifting gears, causing them to mesh with another shifting gear, and so on, for deceleration transmission. Finally, the output gear is engaged. When the input gear reaches 30,000 revolutions, the output gear rotates one revolution, and the synchronous drive shaft rotates one revolution. The guide sleeve on the drive shaft is displaced accordingly by the track groove, and during this displacement, pressure is continuously applied. The spring connected to it is compressed, and the connecting rod connected to it is pulled, causing the connecting rod to pull the piston of the suction cylinder, creating a negative pressure inside the suction cylinder. This draws the lubricating oil from one of the oil chambers of the oil cylinder into the suction cylinder. When the transmission shaft rotates from the curved groove to the branch groove, the transmission sleeve is reset under the action of the spring. After reset, the connecting rod pushes the piston of the suction cylinder, causing the lubricating oil inside the suction cylinder to be delivered to the branch pipe. The lubricating oil is then distributed to the first and second oil nozzles to lubricate the planetary gear set and spline shaft for regular lubrication maintenance. During the forward displacement of the spline sleeve, the shift fork connected to the spline sleeve abuts against the front oil guide channel, causing the oil guide channel to move forward and the inclined surface at the front end of the oil guide channel to abut against the top valve sleeve, thus exposing the outlet of the oil port. The position of the other oil chamber of the oil cylinder is higher than the outlet of the oil port. The lubricating oil flows along the pipeline to the outlet of the oil port, and the lubricating oil drips along the guide groove of the oil guide channel onto the surface of the drive gear, assisting the subsequent meshing transmission of the drive gear.

[0016] This invention provides a high-power planetary reduction starter motor. It has the following beneficial effects: 1. This invention utilizes the axial displacement of the spline sleeve as a trigger signal to automatically open the oil outlet at the same time as the drive gear extends to engage. The lubricating oil is precisely delivered to the gear meshing surface through the oil guide channel, providing lubrication at the moment of engagement. This avoids the waste caused by continuous oil spraying and reduces the frictional resistance, impact loss, and risk of jamming when the drive gear and flywheel mesh.

[0017] 2. This invention realizes the timed and quantitative supply and maintenance-free operation of the lubrication system, and constructs a self-sufficient internal circulation lubrication system to ensure that each gear pair is always in a good lubrication state, extending the maintenance cycle and greatly reducing maintenance time and material consumption.

[0018] 3. By optimizing the accumulation triggering structure of the lubrication structure and using the anti-torque meshing transmission structure, the present invention reduces the load on the planetary reduction mechanism and enables counted meshing without affecting normal drive. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the main housing of the present invention; Figure 3 This is a schematic diagram of the extended state of the drive gear of the present invention; Figure 4 This is a schematic diagram of the structure of the electric motor and planetary gear set of the present invention; Figure 5 This is a schematic diagram of the internal structure of the sub-shell of the present invention; Figure 6 This is a schematic diagram of the connection structure of the output gear of the present invention; Figure 7 This is a schematic diagram of the connecting structure of the linkage of the present invention; Figure 8 This is a schematic diagram of the transmission shaft of the present invention; Figure 9 This is a schematic diagram of the transmission sleeve of the present invention; Figure 10 This is a schematic diagram of the internal structure of the hydraulic cylinder of the present invention; Figure 11 This is a schematic diagram of the connection structure of the branch pipe of the present invention; Figure 12 This is a schematic diagram showing the position of the sliding rail of the present invention; Figure 13 This is a schematic diagram showing the positions of the drive gear and the oil outlet of the present invention; Figure 14 This is a schematic diagram of the valve sleeve structure of the present invention.

[0020] The components are as follows: 1. Main housing; 2. Sub-housing; 3. Hydraulic cylinder; 4. Electric motor; 5. Electromagnetic switch; 6. Planetary gear set; 7. Splined shaft; 8. Splined sleeve; 9. Bearing; 10. Drive gear; 11. Input gear; 12. Actuating gear; 13. Gearbox 1; 14. Gearbox 2; 15. Output gear; 16. Drive shaft; 17. Drive sleeve; 18. Connecting rod; 19. Suction cylinder; 20. Rotating frame; 21. Branch pipe; 22. Injector head 1; 23. Injector head 2; 24. Sliding rail; 25. Oil outlet; 26. Valve sleeve; 27. Oil guide channel; 28. Shift fork; 29. ​​Rotating sleeve. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0022] This invention provides a high-power planetary reduction starter, comprising: Please see the appendix Figure 1 - Appendix Figure 3 The main housing 1 has an electric motor 4 installed at its rear end. A splined shaft 7 is installed on the front side of the electric motor 4 via a planetary gear set 6. A splined sleeve 8 is fitted on the front side of the splined shaft 7. A drive gear 10 for meshing with the flywheel of an automobile engine is fixedly connected to the front side of the splined sleeve 8. The splined sleeve 8 is displaced on the outer wall of the splined shaft 7 via a clutch assembly. The clutch assembly includes a 30 installed in the middle of the main housing 1. An electromagnetic switch 5 is provided on the rear side of the top of the 30. The top of the 30 is rotatably connected to the pull part of the electromagnetic switch 5. The bottom of the 30 is rotatably connected to the outer wall of the rear end of the splined sleeve 8. A bearing 9 is fitted on the rear end of the splined shaft 7. The outer wall of the bearing 9 is installed inside the main housing 1 via a mounting bracket. A rotating sleeve 29 is rotatably connected to the front side of the main housing 1. The rotating sleeve 29 is fitted on the outer wall of the drive gear 10 so that it can rotate stably after the drive gear 10 is displaced to prevent jamming. Specifically, the electric motor 4 and the electromagnetic switch 5 are existing technologies and common specifications and types suitable for starters currently on the market, possessing basic power functions and connection circuits. Please refer to the appendix. Figure 2 and attached Figure 4 The input part of the planetary gear set 6 is connected to the output end of the electric motor 4, and the output part of the planetary gear set 6 is connected to the spline sleeve 8. The planetary gear set 6 is configured such that the ring gear is stationary, the input part is the sun gear, and the output part consists of planet gears and planet rings rotating around the sun gear, thus forming a speed reduction and torque reduction configuration to adapt to the output specifications of high-power starter motors. After the starter motor is started, the electromagnetic switch 5, which is connected to the power supply, is pulled by the generated electromagnetic force, causing the solenoid sleeve 8 at the bottom to move forward in a lever-like manner, along with the structure connected to the solenoid sleeve 8. At the same time, the electric motor 4, which is connected to the power supply, drives the front spline shaft 7 to rotate through the planetary gear set 6, and drives the spline sleeve 8, which is fitted on the outer wall of the spline shaft 7, to rotate synchronously. While the spline sleeve 8 drives the front part of the structure to move forward, it maintains a rotating state. The drive gear 10 extends out of the front end of the main housing 1 and meshes with the flywheel of the car engine to transmit power to the flywheel. After the engine is started, the power is cut off, the electric motor 4 stops rotating, and the pull part of the electromagnetic switch 5 resets, causing the structure including the drive gear 10 to reset and stop the meshing transmission. Please see the appendix Figure 11 Branch pipe 21 has two output ends. The two output ends of branch pipe 21 are respectively fixedly connected to oil injector head 1 22 and oil injector head 23. Oil injector head 1 22 is set on the inner wall of planetary gear set 6. Specifically, a small through groove is opened on the top of the gear ring on planetary gear set 6, which does not affect the inner circumferential meshing structure of the gear ring. Oil injector head 1 22 is set inside the small through groove, and the nozzle is aligned with the inner circumference of the gear ring so that the lubricating oil can contact it during the planetary gear's rotational displacement for lubrication. Oil injector head 23 is located on the top side of spline shaft 7. A suction cylinder 19 is installed at the input end of branch pipe 21. Both the output end and the input end of suction cylinder 19 are equipped with one-way valve diaphragms to prevent lubricating oil backflow. A traction component is installed on the piston part of suction cylinder 19. Please see the appendix Figure 7 -Appendix Figure 9 The traction assembly performs traction work through the output gear 15 driven by the gearbox. The traction assembly includes a rotating frame 20 fixedly connected inside the sub-housing 2. A drive shaft 16 is rotatably connected inside the rotating frame 20. A closed track groove is opened on the outer wall of the drive shaft 16. A drive sleeve 17 is slidably connected to the rear side of the rotating frame 20 through a spring. The inner wall of the drive sleeve 17 is connected to the track groove through a protrusion. A connecting rod 18 is rotatably connected to the outer wall of the drive sleeve 17. One end of the connecting rod 18 is rotatably connected to the piston part of the suction cylinder 19. The suction cylinder 19 is fixedly connected inside the sub-housing 2. Specifically, when the input gear 11 reaches 30,000 revolutions, the output gear 15 rotates once, and the synchronous transmission shaft 16 rotates once. The transmission sleeve 17 is guided to make corresponding displacements in the track groove on the transmission shaft 16. During the displacement process, the spring connected to it is continuously compressed, and the connecting rod 18 connected to it is pulled. The connecting rod 18 pulls the piston part of the suction cylinder 19, creating a negative pressure inside the suction cylinder 19. The lubricating oil inside one of the oil chambers of the oil cylinder 3 is drawn into the suction cylinder 19. When the transmission shaft 16 rotates from the curved groove to the branch groove, the transmission sleeve 17 is reset under the action of the spring. After reset, the connecting rod 18 pushes the piston part of the suction cylinder 19, so that the lubricating oil inside the suction cylinder 19 is delivered to the branch pipe 21 and distributed to the first oil nozzle 22 and the second oil nozzle 23 to lubricate the planetary gear set 6 and the spline shaft 7 for regular lubrication maintenance.

[0023] Please see the appendix Figure 5 and attached Figure 6 The gearbox includes a secondary housing 2 fixedly connected to one side of the main housing 1. Multiple gear 13 are rotatably connected inside the secondary housing 2. Gear 24 is fixedly connected to the rear side of gear 13. One gear 24 meshes with the output gear 15. One gear 13 is connected to the splined shaft 7 through an anti-torque gear set. The remaining gear 13 meshes with the remaining gear 24. The meshing objects are adjacent gear 13 and gear 24. The anti-torque gear set includes two meshing input gears 11. One input gear 11 is fixedly connected to the outer wall of the splined shaft 7. The rear outer circumference of the other input gear 11 is fixedly connected to a pawl gear 12, which moves in an eccentric ring manner and intermittently pawls one gear 13. The speed ratio between the output gear 15 and the splined shaft 7 is 1:30000. Specifically, the meshing of gear 13 and gear 14 forms a reduction gear structure group that drives a large gear through a small gear, for counting the rotation of the starter motor. During the rotation of the spline shaft 7, the input gear 12 is driven to rotate eccentrically around the spline shaft 7 through two meshing input gears 11. The input gear 12 is then driven to rotate intermittently, meshing with the adjacent gear 13. This causes the gear 14 on gear 13 to mesh with another gear 13, and so on, for deceleration transmission, finally outputting to the output gear 15.

[0024] Please see the appendix Figure 10 Appendix Figure 11 and attached Figure 13The oil cylinder 3 is divided into two oil chambers by a partition plate to hold lubricating oil. One oil chamber is connected to the input end of the suction cylinder 19 through a pipe, and the other oil chamber is connected to the oil outlet 25 through a pipe. The oil outlet 25 is located on the top side of the drive gear 10. When the spline sleeve 8 moves forward, it triggers the trigger valve on the bottom side of the oil outlet 25 to make the lubricating oil flow out of the oil outlet 25 and drip onto the outer wall of the drive gear 10, so as to prevent the drive gear 10 from getting stuck when it meshes with the flywheel of the car engine.

[0025] Please see the appendix Figure 12 -Appendix Figure 14 The trigger valve includes a sliding rail 24 fixedly connected to the top side of the front end of the inner wall of the main housing 1. The bottom end of the sliding rail 24 has an oil guide channel 27 that slides horizontally by a spring. The front end of the oil guide channel 27 has an inclined surface. The front end of the oil guide channel 27 abuts against a valve sleeve 26 through the inclined surface. The valve sleeve 26 is sleeved on the outer wall of the oil outlet 25 by a spring. The front outer wall of the spline sleeve 8 is fixedly connected to a shift fork 28. The shift fork 28 is located on the rear side of the oil guide channel 27. The top side of the oil guide channel 27 has a guide groove to guide the lubricating oil flowing out from the output end of the oil outlet 25, so that the lubricating oil flows to the drive gear 10. Specifically, during the forward displacement of the spline sleeve 8, the shift fork 28 connected to the spline sleeve 8 abuts against the front oil guide channel 27, causing the oil guide channel 27 to move forward and the inclined surface at the front end of the oil guide channel 27 to abut against the top valve sleeve 26 and lift up, exposing the outlet of the oil outlet 25. The position of the other oil chamber of the oil cylinder 3 is higher than the outlet of the oil outlet 25. The lubricating oil flows along the pipe to the outlet of the oil outlet 25. The lubricating oil drips along the guide groove of the oil guide channel 27 onto the surface of the drive gear 10, assisting the subsequent meshing transmission of the drive gear 10.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-power planetary reduction starter, characterized in that, include: The main housing (1) has an electric motor (4) installed at its rear end. A spline shaft (7) is installed on the front side of the electric motor (4) via a planetary gear set (6). A spline sleeve (8) is fitted on the front side of the spline shaft (7). A drive gear (10) for meshing with the flywheel of an automobile engine is fixedly connected to the front side of the spline sleeve (8). The spline sleeve (8) is displaced on the outer wall of the spline shaft (7) via a clutch assembly. Branch pipe (21), the number of output ends of the branch pipe (21) is two, the two output ends of the branch pipe (21) are respectively fixedly connected to the first fuel injector (22) and the second fuel injector (23), the first fuel injector (22) is set on the inner wall of the planetary gear set (6), the second fuel injector (23) is located on the top side of the spline shaft (7), the input end of the branch pipe (21) is equipped with a suction cylinder (19), the piston part of the suction cylinder (19) is equipped with a traction component, and the traction component performs traction work through the output gear (15) driven by the gearbox; The oil cylinder (3) is divided into two oil chambers by a partition plate for holding lubricating oil. One of the oil chambers is connected to the input end of the suction cylinder (19) through a pipe, and the other oil chamber is connected to an oil outlet (25) through a pipe. The oil outlet (25) is located on the top side of the drive gear (10). When the spline sleeve (8) moves forward, it triggers the trigger valve on the bottom side of the oil outlet (25) to make the lubricating oil flow out from the oil outlet (25) and drip onto the outer wall of the drive gear (10) so that the drive gear (10) is prevented from jamming when it meshes with the flywheel of the car engine.

2. The high-power planetary reduction starter motor according to claim 1, characterized in that, The gearbox includes a sub-housing (2) fixedly connected to one side of the main housing (1). Multiple gears (13) are rotatably connected inside the sub-housing (2). Gears (14) are fixedly connected to the rear side of the gears (13). One of the gears (14) meshes with the output gear (15). One of the gears (13) is connected to the spline shaft (7) through an anti-torque gear set. The remaining gears (13) mesh with the remaining gears (14).

3. A high-power planetary reduction starter according to claim 2, characterized in that, The anti-torque gear set includes two meshing input gears (11), one of which is fixedly connected to the outer wall of the spline shaft (7), and the other input gear (11) is fixedly connected to the rear outer periphery of the actuating gear (12), which moves in an eccentric ring manner and actuates one of the speed-changing gears (13) intermittently.

4. A high-power planetary reduction starter motor according to claim 2, characterized in that, The traction assembly includes a rotating frame (20) fixedly connected inside the sub-shell (2). A drive shaft (16) is rotatably connected inside the rotating frame (20). A closed track groove is opened on the outer wall of the drive shaft (16). A drive sleeve (17) is slidably connected to the rear side of the rotating frame (20) by a spring. The inner wall of the drive sleeve (17) is connected to the track groove by a protrusion. A connecting rod (18) is rotatably connected to the outer wall of the drive sleeve (17). One end of the connecting rod (18) is rotatably connected to the piston part of the suction cylinder (19). The suction cylinder (19) is fixedly connected inside the sub-shell (2).

5. A high-power planetary reduction starter according to claim 1, characterized in that, The trigger valve includes a sliding rail (24) fixedly connected to the top side of the front end of the inner wall of the main housing (1). The bottom end of the sliding rail (24) has an oil guide channel (27) that slides horizontally by a spring. The front end of the oil guide channel (27) has an inclined surface. The front end of the oil guide channel (27) abuts against a valve sleeve (26) through the inclined surface. The valve sleeve (26) is sleeved on the outer wall of the oil outlet (25) by a spring. The front outer wall of the spline sleeve (8) is fixedly connected to a shift fork (28). The shift fork (28) is located on the rear side of the oil guide channel (27). The top side of the oil guide channel (27) has a guide groove to guide the lubricating oil flowing out from the output end of the oil outlet (25) and direct the lubricating oil to the drive gear (10).

6. A high-power planetary reduction starter motor according to claim 1, characterized in that, The clutch assembly includes a (30) installed in the middle of the main housing (1). An electromagnetic switch (5) is provided on the rear side of the top of the (30). The top of the (30) is rotatably connected to the pull part of the electromagnetic switch (5). The bottom of the (30) is rotatably connected to the outer wall of the rear end of the spline sleeve (8).

7. A high-power planetary reduction starter according to claim 1, characterized in that, The speed ratio between the output gear (15) and the spline shaft (7) is 1:30000.

8. A high-power planetary reduction starter according to claim 1, characterized in that, The suction cylinder (19) is equipped with one-way valve diaphragms at both the output and input ends to prevent lubricating oil backflow.

9. A high-power planetary reduction starter according to claim 1, characterized in that, The front side of the main housing (1) is rotatably connected to a rotating sleeve (29), which is sleeved on the outer wall of the drive gear (10) so that it can rotate stably after the drive gear (10) is displaced to prevent jamming.

10. A high-power planetary reduction starter according to claim 1, characterized in that, The rear end of the spline shaft (7) is fitted with a bearing (9), and the outer wall of the bearing (9) is installed inside the main housing (1) by a mounting bracket.

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