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CN-122014473-A - High-power planetary reduction starter

CN122014473ACN 122014473 ACN122014473 ACN 122014473ACN-122014473-A

Abstract

The invention relates to the technical field of starters and provides a high-power planetary reduction starter which comprises a main shell, wherein a motor is arranged at the rear end of the inside of the main shell, a spline shaft is arranged at the front side of the motor through a planetary gear set, a spline housing is sleeved on the front side of the spline shaft, a driving gear used for meshing a flywheel of an automobile engine is fixedly connected to the front side of the spline housing, the spline housing is displaced on the outer wall of the spline shaft through a clutch assembly, and the number of output ends of a branch pipe is two. By using the axial displacement of the spline housing as a trigger signal, the oil outlet is automatically opened when the driving gear stretches out and is meshed, lubricating oil is accurately conveyed to the gear meshing surface through the oil guide duct, lubrication is provided at the meshing moment, waste caused by continuous oil injection is avoided, and friction resistance, impact loss and jamming risk when the driving gear is meshed with the flywheel are reduced.

Inventors

  • GU QIANHU
  • GU RENXI
  • DAI GUOLIN
  • XIE ZHENYU

Assignees

  • 常州市松泽电器有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (10)

  1. 1. A high power planetary reduction starter, comprising: The motor comprises a main shell (1), wherein a motor (4) is arranged at the rear end of the inside of the main shell (1), a spline shaft (7) is arranged at the front side of the motor (4) through a planetary gear set (6), a spline housing (8) is sleeved on the front side of the spline shaft (7), a driving gear (10) for engaging a flywheel of an automobile engine is fixedly connected to the front side of the spline housing (8), and the spline housing (8) is displaced on the outer wall of the spline shaft (7) through a clutch assembly; The number of output ends of the branch pipes (21) is two, the two output ends of the branch pipes (21) are respectively fixedly connected with a first oil injection head (22) and a second oil injection head (23), the first oil injection head (22) is arranged on the inner wall of the planetary gear set (6), the second oil injection head (23) is positioned at the top side of the spline shaft (7), a suction cylinder (19) is arranged at the input end of the branch pipe (21), a traction assembly is arranged at the piston part of the suction cylinder (19), and the traction assembly performs traction work through an output gear (15) driven by a gear box; The oil cylinder (3), the inside of oil cylinder (3) is divided into two oil pockets through the division board, in order to be used for holding lubricating oil, one of them the oil pocket passes through the pipeline and links to each other with the input of suction cylinder (19), and another the oil pocket is connected with oil-out (25) through the pipeline, oil-out (25) are located the top side of driving gear (10), trigger the trigger valve of oil-out (25) bottom side when spline housing (8) shift forward makes lubricating oil flow out from oil-out (25) and drip on the outer wall of driving gear (10), prevents the card when making driving gear (10) meshing automobile engine flywheel to die.
  2. 2. The high-power planetary reduction starter according to claim 1, wherein the gear box comprises a sub-housing (2) fixedly connected to one side of the main housing (1), a plurality of first speed gears (13) are rotatably connected to the inside of the sub-housing (2), second speed gears (14) are fixedly connected to the rear side of the first speed gears (13), one of the second speed gears (14) is meshed with the output gear (15), one of the first speed gears (13) is connected with the spline shaft (7) through a torque-resistant gear set, and the rest of the first speed gears (13) are meshed with the rest of the second speed gears (14).
  3. 3. A high-power planetary reduction starter according to claim 2, characterized in that the torque-resistant gear set comprises two mutually meshed input gears (11), one of the input gears (11) is fixedly connected with the outer wall of the spline shaft (7), the rear side periphery of the other input gear (11) is fixedly connected with a toggle gear (12) which moves in an eccentric encircling manner, and one of the speed change gears (13) is toggled at intervals.
  4. 4. The high-power planetary reduction starter according to claim 2, wherein the traction assembly comprises a rotating frame (20) fixedly connected inside the auxiliary housing (2), a transmission shaft (16) is rotatably connected inside the rotating frame (20), a closed track groove is formed in the outer wall of the transmission shaft (16), a transmission sleeve (17) is slidably connected to the rear side of the rotating frame (20) through a spring, the inner wall of the transmission sleeve (17) is connected with the track groove through a protrusion, a connecting rod (18) is rotatably connected to the outer wall of the transmission sleeve (17), one end of the connecting rod (18) is rotatably connected with a piston part of a suction cylinder (19), and the suction cylinder (19) is fixedly connected inside the auxiliary housing (2).
  5. 5. The high-power planetary reduction starter according to claim 1, wherein the trigger valve comprises a sliding rail (24) fixedly connected to the top side of the front end of the inner wall of the main housing (1), an oil guide channel (27) is horizontally slid at the bottom end of the sliding rail (24) through a spring, an inclined plane is formed at the front end of the oil guide channel (27), a valve sleeve (26) is abutted to the front end of the oil guide channel (27) through the inclined plane, the valve sleeve (26) is sleeved on the outer wall of the oil outlet (25) through a spring, a shifting fork (28) is fixedly connected to the outer wall of the front end of the spline sleeve (8), the shifting fork (28) is located at the rear side of the oil guide channel (27), and a guide groove is formed in the top side of the oil guide channel (27) so as to guide lubricating oil flowing out of the output end of the oil outlet (25) and enable the lubricating oil to flow to the driving gear (10).
  6. 6. The high-power planetary reduction starter according to claim 1, wherein the clutch assembly comprises a clutch assembly (30) mounted at the inner middle end of the main housing (1), an electromagnetic switch (5) is arranged at the rear side of the top end of the clutch assembly (30), the top end of the clutch assembly (30) is rotatably connected with a pulling part of the electromagnetic switch (5), and the bottom end of the clutch assembly (30) is rotatably connected to the outer wall of the rear end of the spline housing (8).
  7. 7. A high power planetary reduction starter according to claim 1, characterized in that the output gear (15) and spline shaft (7) are rotated at a ratio of 1:30000.
  8. 8. A high-power planetary reduction starter according to claim 1, characterized in that the output and input ends of the suction cylinder (19) are provided with one-way valve diaphragms to prevent the backflow of lubricating oil.
  9. 9. The high-power planetary reduction starter according to claim 1, wherein a rotating sleeve (29) is rotatably connected to the front side of the main housing (1), and the rotating sleeve (29) is sleeved on the outer wall of the driving gear (10) so as to be capable of stably rotating to prevent jamming after the driving gear (10) is displaced.
  10. 10. The high-power planetary reduction starter according to claim 1, wherein the rear end of the spline shaft (7) is sleeved with a bearing (9), and the outer wall of the bearing (9) is mounted inside the main housing (1) through a mounting frame.

Description

High-power planetary reduction starter Technical Field The invention relates to the technical field of starters, in particular to a high-power planetary reduction starter. Background Vehicle starters are generally composed of an electric motor, a transmission mechanism and a control mechanism. When starting a vehicle engine, a control mechanism for controlling the motor causes the motor to generate a rotational torque, which is transmitted to a ring gear on an engine flywheel through an output pinion gear on a transmission mechanism, to drive a crankshaft of the engine to rotate. Under the high-speed high-power output working condition of the existing planetary reduction starter, after the starter operates for a long time, the transmission part of the existing planetary reduction starter is dried, so that the friction of the transmission part is increased, the energy consumption is increased, the part is required to be lubricated at the moment, the traditional lubrication mode depends on manual regular maintenance or simple splash lubrication, and an effective automatic trigger lubrication mechanism is lacking, so that the driving gear is blocked due to overlarge friction resistance when the driving gear is meshed in a stretching mode, and the starting success rate is seriously influenced. Therefore, a high-power planetary reduction starter is required. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a high-power planetary reduction starter, which solves the problems that the traditional lubrication mode depends on manual regular maintenance or simple splash lubrication when the existing starter is maintained, and an effective automatic trigger lubrication mechanism is lacking, so that the driving gear is blocked due to overlarge friction resistance when the driving gear is engaged in a stretching way, and the starting success rate is seriously affected. In order to achieve the above purpose, the invention is realized by the following technical scheme: A high power planetary reduction starter comprising: The motor is arranged at the rear end of the inside of the main shell, a spline shaft is arranged at the front side of the motor through a planetary gear set, a spline housing is sleeved at the front side of the spline shaft, a driving gear for engaging a flywheel of an automobile engine is fixedly connected to the front side of the spline housing, and the spline housing is displaced on the outer wall of the spline shaft through a clutch assembly; The number of output ends of the branch pipe is two, the two output ends of the branch pipe are respectively and fixedly connected with an oil injection head I and an oil injection head II, the oil injection head I is arranged on the inner wall of the planetary gear set, the oil injection head I is positioned at the top side of the spline shaft, a suction cylinder is arranged at the input end of the branch pipe, a traction assembly is arranged at the piston part of the suction cylinder, and the traction assembly performs traction work through an output gear driven by a gear box; The oil cylinder is characterized in that the interior of the oil cylinder is divided into two oil cavities through a partition plate so as to be used for containing lubricating oil, one oil cavity is connected with the input end of the suction cylinder through a pipeline, the other oil cavity is connected with an oil outlet through a pipeline, the oil outlet is positioned on the top side of the driving gear, and a trigger valve triggering the bottom side of the oil outlet when the spline housing moves forwards enables the lubricating oil to flow out of the oil outlet and drop on the outer wall of the driving gear so as to enable the driving gear to prevent the driving gear from being blocked when engaging with a flywheel of an automobile engine. Preferably, the gear box comprises an auxiliary shell fixedly connected to one side of the main shell, a plurality of first speed changing gears are rotatably connected to the inside of the auxiliary shell, second speed changing gears are fixedly connected to the rear side of the first speed changing gears, one of the second speed changing gears is meshed with the output gear, one of the first speed changing gears is connected with the spline shaft through a torque-resistant gear set, and the rest of the first speed changing gears are meshed with the rest of the second speed changing gears. Preferably, the torque-resistant gear set comprises two mutually meshed input gears, one of the input gears is fixedly connected with the outer wall of the spline shaft, the other input gear is fixedly connected with a stirring gear at the periphery of the rear side of the input gear, and the input gear moves in an eccentric surrounding mode to stir one of the speed change gears at intervals. Preferably, the traction assembly comprises a rotating frame fixedly connected inside the auxiliary shell, a transmission shaft is r