Starter providing comprehensive performance

Abstract

The utility model discloses a starter providing comprehensive performance, which comprises a shell, an electromagnetic switch, a motor, a planetary gear reducer, an isolator and a shifting fork are arranged in the shell, the electromagnetic switch lifts the isolator to output through the shifting fork, the motor is in transmission connection with the isolator through the planetary gear reducer, a rotatable auxiliary shaft is further arranged in the shell, and the auxiliary shaft is in transmission connection with the isolator through the planetary gear reducer. The center line of the auxiliary shaft is parallel to the center line of the isolator, the output gear is in transmission connection with the auxiliary shaft in the mode that the output gear can move up and down along the auxiliary shaft, the isolator comprises an isolator body and a small gear, and the small gear is matched with the output gear in a meshed mode. In the lifting process, the isolator always keeps synchronous lifting with the output gear on the auxiliary shaft through the plastic auxiliary block, and meanwhile, the output gear always keeps meshing transmission with the pinion on the isolator, so that the output of the motor is more reliably transmitted to an engine, and the comprehensive performance of the starter is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of starters, in particular to a starter providing comprehensive performance. Background Art

[0002] The comprehensive performance indicators of the starter mainly include the following aspects: the comprehensive performance indicators of the starter include starting torque, minimum starting speed, starting power, and reliability of transmission with the engine's large gear, etc. These indicators jointly determine the performance and reliability of the starter. Starting torque, minimum starting speed, and starting power are all provided by the motor, and are very related to the transmission with the engine's large gear.

[0003] The reliability of the transmission with the large gear of the engine is directly related to the starting response of the engine. The existing starter mainly drives the small gear output to mesh with the large gear of the engine through the sliding and rotation of the one-way device. The reaction force generated by the collision between the one-way device and the large gear of the engine under long-term unilateral drive will cause the driving shaft on the planetary gear reducer (the one-way device is sleeved on the driving shaft) to shift or shake on one side, affecting the stability of engine starting. At the same time, the output of the motor is transmitted to the one-way device through the planetary gear reducer. The friction during the transmission process will also affect the overall performance. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a starter with comprehensive performance, the purpose of which is to make the output of the motor more reliably transmitted to the engine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a starter with comprehensive performance, comprising a housing, an electromagnetic switch, a motor, a planetary gear reducer, a one-way device and a shift fork are installed in the housing, the electromagnetic switch lifts the output of the one-way device through the shift fork, the motor is connected to the one-way device through the planetary gear reducer, a rotatable auxiliary shaft is also arranged in the housing, the center line of the auxiliary shaft is parallel to the center line of the one-way device, a spline section is arranged on the peripheral wall of the auxiliary shaft, and an output is sleeved on the auxiliary shaft Gear, the inner hole wall of the output gear is provided with a spline groove matched with the spline section, the output gear can be movably connected to the auxiliary shaft along the auxiliary shaft up and down through the spline section and the spline groove, the lower part of the output gear is provided with a transmission ring, and the transmission ring is provided with an annular lifting groove, the one-way device includes a one-way device body and a pinion, the pinion is meshed with the output gear, and a plastic auxiliary block is connected to the one-way device body, and a support block matched with the lifting groove is provided on the plastic auxiliary block, and the support block is placed in the lifting groove.

[0006] A driving gear is arranged on the output shaft of the motor. The driving gear meshes with the planetary gears in the planetary gear reducer. The end of the output shaft of the motor is inserted into a hole slot in the planetary gear reducer. Steel balls are arranged between the hole slot and the output shaft of the motor. A counterbore is arranged at the end of the output shaft of the motor. The opening of the counterbore is tapered and lubricating grease is filled in the counterbore. The steel balls are in contact with the opening of the counterbore.

[0007] A limiting block is also connected in the housing. The limiting block is sleeved on the auxiliary shaft. The limiting block is arranged below the output gear.

[0008] The beneficial effects of the present utility model are as follows: During the lifting process of the overrunning clutch, the plastic auxiliary block always keeps synchronous lifting with the output gear on the auxiliary shaft. At the same time, the output gear and the pinion on the overrunning clutch always keep meshing transmission. Therefore, the reaction force during the matching process between the output gear and the large gear on the engine is directly transmitted to the auxiliary shaft, so that it will not affect the transmission structure of the overrunning clutch and the planetary gear reducer, making the output of the motor more reliably transmitted to the engine and effectively improving the comprehensive performance of the starter.

[0009] The present utility model will be further described below in conjunction with the drawings and specific embodiments. Description of the Drawings

[0010] Figure 1 is a cross-sectional view of the specific embodiment of the present utility model;

[0011] Figure 2 is Figure 1 the enlarged view of A in

[0012] Figure 3 is Figure 1 the enlarged view of B in Specific Embodiments

[0013] The present utility model will be specifically described below through embodiments, which are only used for further illustration of the present utility model and should not be construed as limiting the protection scope of the present utility model.

[0014] Such as Figure 1 — Figure 3As shown in the figure, this embodiment discloses a starter that provides comprehensive performance, including a housing 1. An electromagnetic switch 2, a motor 3, a planetary gear reducer 4, a one-way clutch 5, and a fork 6 are installed inside the housing 1. The electromagnetic switch 2 lifts the output of the one-way clutch 5 through the fork 6 to engage with the large gear of the engine. The motor 3 is drivingly connected to the one-way clutch 5 through the planetary gear reducer 4. A rotatable auxiliary shaft 7 is also provided inside the housing 1. The central axis of the auxiliary shaft 7 is parallel to the central axis of the one-way clutch 5. A spline section is provided on the peripheral wall of the auxiliary shaft 7. An output gear 8 is sleeved on the auxiliary shaft 7. A spline groove adapted to the spline section is provided on the inner hole wall of the output gear 8. The output gear 8 is drivingly connected to the auxiliary shaft 7 through the cooperation of the spline section and the spline groove and can move up and down along the auxiliary shaft 7. A transmission ring 81 is provided at the lower part of the output gear 8. An annular lifting groove 810 is provided on the transmission ring 81. The one-way clutch 5 includes a one-way clutch body 50 and a pinion 51. The pinion 51 is meshed and cooperated with the output gear 8. A plastic auxiliary block 9 is connected to the one-way clutch body 50. A supporting block 91 adapted to the lifting groove 810 is provided on the plastic auxiliary block 9. The supporting block 91 is placed in the lifting groove 810.

[0015] A driving gear 10 is arranged on the output shaft of the motor 3. The driving gear 10 is meshed and driven with the planetary gears inside the planetary gear reducer 4. The end of the output shaft of the motor 3 is inserted into a hole groove 20 inside the planetary gear reducer 4. A steel ball 30 is arranged between the hole groove 20 and the output shaft of the motor 3. A counterbore 31 is provided at the end of the output shaft 32 of the motor 3. The opening of the counterbore 31 is tapered and open. Grease is filled in the counterbore 31. The steel ball 30 contacts the opening of the counterbore 31. Through this structure, the output of the motor 3 can have a smaller frictional force, and the torque of the motor 3 can be more efficiently transmitted to the planetary gear reducer 4 for speed reduction and torque increase.

[0016] A limiting block 40 is also connected inside the housing 1. The limiting block 40 is sleeved on the auxiliary shaft 7. The limiting block 40 is arranged at a position below the output gear 8. The limiting block 40 can prevent the output gear 8 from moving excessively during the downward movement, so that the position of the output gear 8 is always in a reliable position. At the same time, the reliability of the rotation of the auxiliary shaft 7 is also ensured, and the position deviation of the auxiliary shaft 7 due to force is avoided.

[0017] With the above technical solution, during the lifting process of the one-way clutch 5, it always keeps synchronous lifting with the output gear 8 on the auxiliary shaft 7 through the plastic auxiliary block 9. At the same time, the output gear 8 and the pinion 51 on the one-way clutch 5 always keep meshing transmission. Therefore, the reaction force during the cooperation between the output gear 8 and the large gear on the engine is directly transmitted to the auxiliary shaft 7, so that it will not affect the transmission structure of the one-way clutch 5 and the planetary gear reducer 4, making the output of the motor 3 more efficiently and reliably transmitted to the engine, effectively improving the comprehensive performance of the starter, and making the cooperation between the starter and the engine smoother and more reliable.

[0018] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0019] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A starter providing comprehensive performance, comprising a housing, wherein an electromagnetic switch, a motor, a planetary gear reducer, a one-way clutch and a fork are installed in the housing, the electromagnetic switch lifts the output of the one-way clutch through the fork, and the motor is drivingly connected to the one-way clutch through the planetary gear reducer, and is characterized in that: An auxiliary shaft rotatable is further provided in the housing. The central axis of the auxiliary shaft is parallel to the central axis of the one-way clutch. A spline section is provided on the peripheral wall of the auxiliary shaft. An output gear is sleeved on the auxiliary shaft. A spline groove adapted to the spline section is provided on the inner hole wall of the output gear. The output gear is movably and drivably connected to the auxiliary shaft along the up and down directions through the cooperation of the spline section and the spline groove. A transmission ring is provided at the lower part of the output gear. An annular lifting groove is provided on the transmission ring. The one-way clutch includes a one-way clutch body and a pinion gear. The pinion gear is meshed and cooperated with the output gear. A plastic auxiliary block is connected to the one-way clutch body. A supporting block adapted to the lifting groove is provided on the plastic auxiliary block. The supporting block is placed in the lifting groove.

2. The starter providing comprehensive performance according to claim 1, wherein: A driving gear is arranged on the output shaft of the motor. The driving gear is meshed and driven with the planetary gear in the planetary gear reducer. The end of the output shaft of the motor is inserted into a hole groove in the planetary gear reducer. Steel balls are arranged between the hole groove and the output shaft of the motor. A counterbore is provided at the end of the output shaft of the motor. The opening of the counterbore is tapered and open. Grease is filled in the counterbore. The steel balls are in contact with the opening of the counterbore.

3. The starter providing comprehensive performance according to claim 1, characterized in that: A limiting block is further connected in the housing. The limiting block is sleeved on the auxiliary shaft. The limiting block is arranged at a position below the output gear.

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