Start-stop starter capable of improving meshing speed

Abstract

The utility model discloses a start-stop starter capable of improving meshing speed, which comprises a shell, a motor, a one-way clutch and an output shaft driven by the motor are arranged in the shell, the one-way clutch comprises a one-way clutch body and a pinion on the output shaft of the one-way clutch, a sleeve shaft is arranged on the one-way clutch body, and the pinion is arranged on the sleeve shaft. The small gear is connected to the sleeve shaft in a sleeved mode, an inclined spline is arranged on the outer wall of the sleeve shaft, an inclined spline groove meshed with the inclined spline is formed in the inner hole wall of the small gear, the inclined spline groove and the inclined spline are in slidable meshing transmission, an annular limiting groove is formed in one end of an inner hole of the small gear, and a step corresponding to the limiting groove is arranged on the sleeve shaft. A spring is arranged between the step and the limiting groove, and an annular limiting ring is further arranged at the end of the sleeve shaft. In this way, the technical effects that tooth breaking is avoided, and meshing transmission output is rapidly achieved are achieved.

Description

Technical Field

[0001] The utility model relates to an automobile starter, in particular to a start-stop starter with improved meshing speed. Background Art

[0002] When the automobile engine is started, it needs to be driven by a DC motor. If a large torque output is required, a planetary gear assembly will be configured on the starter, and then the electromagnetic switch will drive the shift fork to push the one-way clutch to output torque and drive the engine to run. The electromagnetic switch is generally set independently on one side of the motor and is arranged side by side and parallel to the motor. The one-way clutch in the existing structure includes an output shaft and a pinion. The pinion is connected to the output shaft. After the output shaft is withdrawn by the shift fork, the pinion engages with the large gear connected to the engine crankshaft drive. The pinion and the large gear will basically have teeth hitting at the moment of contact and will not engage immediately. The motor on the starter drives the pinion to rotate to a certain angle before it can mesh with the large gear. In this way, meshing transmission can be achieved. Since the starter is a frequently used component, the pinion is prone to wear and damage due to frequent teeth hitting, which further delays the starting time of the engine. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a start-stop starter with increased meshing speed, which can avoid tooth playing and quickly achieve meshing transmission output.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a start-stop starter with improved meshing speed, comprising a shell, a motor, a one-way clutch and an output shaft driven by the motor are arranged in the shell, and the one-way clutch output shaft comprises a one-way clutch body and a pinion gear, a sleeve shaft is provided on the one-way clutch body, the pinion gear is sleeved on the sleeve shaft, an oblique spline is provided on the outer wall of the sleeve shaft, an oblique spline groove meshing with the oblique spline is provided on the inner hole wall of the pinion gear, the oblique spline groove and the oblique spline are slidably meshed and transmitted, an annular limit groove is provided at one end of the inner hole of the pinion gear, a step corresponding to the limit groove is provided on the sleeve shaft, a spring is arranged between the step and the limit groove, and an annular limit ring is also provided at the end of the sleeve shaft.

[0005] The one-way clutch also includes a clutch component, which is connected to one end of the sleeve shaft. When one end of the pinion gear contacts the clutch component, a spacing of 4mm-6mm is left between the pinion gear and the limiting ring.

[0006] The tooth edge angles of the pinion are chamfered.

[0007] The beneficial effect of the utility model is that when the shift fork of the starter drives the one-way clutch to connect with the large gear on the engine, the small gear on the one-way clutch will drive the small gear compression spring to retreat after coming into contact with the large gear. During the retreat process, the small gear will rotate along the oblique spline, so that the teeth of the small gear can quickly rotate in opposite directions and enter the tooth grooves of the large gear on the engine, thus achieving the technical effect of avoiding tooth hitting and quickly realizing meshing transmission output.

[0008] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model;

[0010] Figure 2 It is a structural diagram of a one-way clutch in a specific implementation manner of the utility model. DETAILED DESCRIPTION

[0011] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0012] like Figure 1 , Figure 2 As shown, the present embodiment discloses a start-stop starter with improved meshing speed, comprising a housing 1, in which a motor 2, an electromagnetic assembly 3, a shift fork 40, a one-way clutch 4 and an output shaft 5 driven by the motor 2 are arranged, the output shaft 5 is an output shaft 5 on a planetary gear 6, the planetary gear 6 is connected to the motor 2 shaft of the motor 2 by transmission to the output shaft 5 of the one-way clutch 4, if the starter does not have a planetary gear, the output shaft 5 is the motor 2 shaft of the motor 2, the one-way clutch 4 comprises a one-way clutch body 41 and a pinion 42, in the one-way clutch A sleeve shaft 43 is provided on the device body 41, and a pinion 42 is sleeved on the sleeve shaft 43. An oblique spline 431 is provided on the outer wall of the sleeve shaft 43, and an oblique spline groove meshing with the oblique spline 431 is provided on the inner hole wall of the pinion gear 42. The oblique spline groove and the oblique spline 431 can be slidably engaged for transmission. An annular limiting groove 421 is provided at one end of the inner hole of the pinion gear 42, and a step 432 corresponding to the limiting groove 421 is provided on the sleeve shaft 43. A spring 7 is arranged between the step 432 and the limiting groove 421, and an annular limiting ring 8 is also provided at the end of the sleeve shaft.

[0013] The one-way clutch 4 also includes a clutch component 44, which is connected to one end of the sleeve shaft 43. When one end of the pinion 42 contacts the clutch component 44, a spacing of 4mm-6mm is left between the pinion 42 and the limit ring 8. This spacing allows the pinion 42 to retreat sufficiently to rotate so as to better align with the tooth groove of the large gear of the engine. As long as the pinion 42 is aligned, it can quickly engage with the large gear of the engine through the elastic force of the spring 7.

[0014] The tooth edge corners of the pinion 42 are chamfered to form an open insertion surface, so that the pinion 42 can be inserted into the tooth groove of the engine gear more conveniently and reliably.

[0015] By adopting the above technical solution, when the starter's shift fork 40 shifts the one-way clutch 4 to connect with the large gear on the engine, the small gear 42 on the one-way clutch will drive the small gear 42 to compress the spring 7 and retreat after coming into contact with the large gear. During the retreat process, the small gear 42 will rotate along the oblique spline 431, so that the teeth of the small gear 42 can rotate quickly and enter the tooth groove of the large gear on the engine, thereby achieving the technical effect of avoiding tooth hitting and quickly realizing meshing transmission output.

[0016] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0017] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A start-stop starter with improved meshing speed, comprising a housing, a motor, a one-way clutch and an output shaft driven by the motor are arranged in the housing, and the one-way clutch output shaft is characterized in that: The one-way clutch includes a one-way clutch body and a pinion gear. A sleeve shaft is provided on the one-way clutch body, and the pinion gear is sleeved on the sleeve shaft. An oblique spline is provided on the outer wall of the sleeve shaft, and an oblique spline groove meshing with the oblique spline is provided on the inner hole wall of the pinion gear. The oblique spline groove and the oblique spline can be slidably engaged for transmission. An annular limit groove is provided at one end of the inner hole of the pinion gear, and a step corresponding to the limit groove is provided on the sleeve shaft. A spring is arranged between the step and the limit groove, and an annular limit ring is also provided at the end of the sleeve shaft.

2. The start-stop starter with increased meshing speed according to claim 1, characterized in that: The one-way clutch also includes a clutch component, which is connected to one end of the sleeve shaft. When one end of the pinion gear contacts the clutch component, a spacing of 4mm-6mm is left between the pinion gear and the limiting ring.

3. The start-stop starter with increased meshing speed according to claim 1, characterized in that: The tooth edge angles of the pinion are chamfered.

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