CN213039383U

CN213039383U - Reduce starter assembly of anti-trouble of dragging

Info

Publication number: CN213039383U
Application number: CN202021167491.6U
Authority: CN
Inventors: 秦川; 丁国华; 彭召辉; 杨二珍; 雷文理; 孟琼
Original assignee: WUHU GENERATOR AUTOMOTIVE ELECTRICAL SYSTEMS CO Ltd
Current assignee: WUHU GENERATOR AUTOMOTIVE ELECTRICAL SYSTEMS CO Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-23
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to the field of starters, in particular to a starter assembly for reducing reverse dragging faults, which comprises an isolator assembly, a driving shaft and a limiting ring; a cleaning spring for cleaning is arranged on the driving shaft; and two ends of the cleaning spring are respectively connected with the isolator assembly and the limiting ring. The utility model discloses a starter assembly for reducing the back-dragging fault; the utility model discloses a be equipped with the clearance spring in the drive shaft, can clear up the foreign matter of adhering to in the drive shaft, when effectively preventing the release and appearing the jamming, electromagnetic switch directly promotes the release assembly after the outage and resets to solve and prevent dragging the trouble.

Description

Reduce starter assembly of anti-trouble of dragging

Technical Field

The utility model relates to a starter field is a reduce starter assembly of anti-trouble of dragging particularly.

Background

The starter is a direct current motor which drives an internal combustion engine to rotate and achieves the purpose of vehicle driving.

At present, the reverse dragging fault of the starter is frequent, so that the commercial vehicle is more prominent. The fault phenomenon is that after an engine is started, a driving gear of a starter and a flywheel gear ring of the engine cannot be timely disconnected, the driving gear of the starter is dragged at a high speed by the successfully ignited flywheel gear ring of the engine, so that a starter isolator assembly fails and slips, and the engine cannot be normally started again. This failure mode is referred to in the industry as reverse motoring because the engine flywheel is dragging the starter to rotate.

When the reverse dragging occurs, the sound of the normal running of the whole vehicle often covers the sound of the reverse dragging of the starter, so that a driver is not easy to perceive the fault and make corresponding treatment measures. The consequence is that the one-way slip mechanism of the isolator assembly of the starter fails at high temperature, sometimes the flywheel gear ring is scrapped at the same time, and the replacement of the flywheel gear ring is time-consuming and labor-consuming, thus affecting the normal operation of the automobile.

The one-way clutch assembly is a combination of a one-way clutch and a driving gear.

For a very meshed starter, after a starter driving gear successfully meshes with a flywheel gear ring to start an engine, the process of the driving gear retreating and resetting is as follows: when the ignition switch is switched off, the electromagnetic switch of the starter loses power, the movable iron core of the electromagnetic switch pushes one end of the shifting fork under the acting force of the return spring, and the other end of the fulcrum pushes the isolator assembly to move back along the helical spline on the driving shaft. Meanwhile, the flywheel gear ring rotating at a high speed makes a radial centripetal force on the isolator assembly, and the driving gear completes the resetting action under the combined action of the return spring and the centripetal force.

In practical application, scrap iron generated by long-term meshing and transmission of the driving gear and the flywheel gear ring and foreign matters such as mud and dirt entering the flywheel shell of the whole vehicle under severe application environment are adsorbed on the driving shaft, so that mechanical clamping stagnation occurs in the resetting process of the starter isolator assembly moving axially on the driving shaft, and further the starter fails due to back dragging.

How to use a simpler and low-cost method to solve the problem of back dragging enables automobile motor research and development and manufacturers to continuously explore and develop new technical and new products.

The current famous automobile motor manufacturers such as the known Boshi, Falaao, and the electric fitting all adopt the mode of increasing the return spring force of the electromagnetic switch or lightening the weight of the isolator assembly so as to increase the reliability of the return of the isolator assembly. By adopting the two methods, although a large part of the back-dragging problem is solved, the increase of the return spring force of the electromagnetic switch means that the electromagnetic force during the wicking of the moving iron core of the electromagnetic switch needs to be multiplied, and a large amount of cost is brought about. Also, reducing the weight of the isolator assembly can result in reduced strength, reduced reliability, and failure transfer of the isolator assembly.

Therefore, to solve the problem of starter back-dragging, a starter assembly that reduces or avoids starter back-dragging faults is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide one kind and can reduce or avoid the starter to drag the starter assembly of trouble instead.

In order to realize the purpose, the utility model discloses a technical scheme be:

a starter assembly for reducing reverse dragging faults comprises a one-way clutch assembly, a driving shaft and a limiting ring; a cleaning spring for cleaning is arranged on the driving shaft; and two ends of the cleaning spring are respectively connected with the isolator assembly and the limiting ring.

The cleaning spring is sleeved on the driving shaft; and two ends of the cleaning spring are respectively contacted with the isolator assembly and the limiting ring.

The isolator assembly comprises a driving gear, and a positioning groove for positioning the cleaning spring is formed in the end portion of the driving gear.

The cleaning spring comprises a plurality of gasket groups, and one end of each adjacent gasket group is connected; the gasket group comprises two single gaskets which are arranged in an intersecting manner; the intersected sides of the two single gaskets are connected; the joints of the adjacent gasket sets and the joints of the single gaskets are distributed on two sides of the cleaning spring.

Each gasket group is oppositely arranged; the two single gaskets in each gasket group are oppositely arranged.

And an avoiding notch is arranged on the outer side of the single gasket at the end part of the cleaning spring.

The utility model has the advantages that:

the utility model discloses a starter assembly for reducing the back-dragging fault; the utility model discloses a be equipped with the clearance spring in the drive shaft, can clear up the foreign matter of adhering to in the drive shaft, when effectively preventing the release and appearing the jamming, electromagnetic switch directly promotes the release assembly after the outage and resets to solve and prevent dragging the trouble.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural diagram of the middle cleaning spring of the present invention.

The labels in the above figures are:

1. isolator assembly, 2, drive gear, 3, drive shaft, 4, clearance spring.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in further detail with reference to the accompanying drawings.

A starter assembly for reducing reverse dragging faults comprises a one-way clutch assembly 1, a driving shaft 3 and a limiting ring; a cleaning spring 4 for cleaning is arranged on the driving shaft 3; two ends of the cleaning spring 4 are respectively connected with the isolator assembly 1 and the limiting ring; the utility model discloses a starter assembly for reducing the back-dragging fault; the utility model discloses a be equipped with clearance spring 4 on drive shaft 3, can clear up the foreign matter of adhering to in drive shaft 3, when effectively preventing the release and appearing the jamming, electromagnetic switch directly promotes isolator assembly 1 after the outage and resets to solve anti-trouble of dragging.

Preferably, in the present invention, the cleaning spring 4 is sleeved on the driving shaft 3; the cleaning spring 4 is sleeved on the driving shaft 3, so that the connection stability of the cleaning spring 4 and the driving shaft 3 is ensured, and the cleaning spring 4 is prevented from falling off; in addition, as preferred, in the utility model, two ends of the cleaning spring 4 are respectively contacted with the isolator assembly 1 and the limiting ring; the cleaning spring 4 is abutted to the adjacent parts, the connection relation is not required to be increased, and later-stage assembly is facilitated.

Preferably, the one-way clutch assembly 1 of the present invention comprises a driving gear 2, and a positioning groove 21 for positioning the cleaning spring 4 is disposed at an end of the driving gear 2; the positioning groove 21 has good limiting effect, and the placing stability of the cleaning spring 4 is guaranteed.

Preferably, the cleaning spring 4 of the present invention comprises a plurality of gasket sets 41, and one end of each adjacent gasket set 41 is connected; the gasket group 41 comprises two single gaskets 411, and the two single gaskets 411 are arranged in an intersecting manner; the two single gaskets 411 are connected at the crossed side; the joint of the adjacent gasket group 41 and the single gasket 411 is distributed on two sides of the cleaning spring 4; each shim pack 41 is oppositely arranged; the two single gaskets 411 in each gasket group 41 are oppositely arranged; firstly, the cleaning spring 4 in the utility model adopts a gasket type spring structure, and the arrangement ensures that the transverse area of the cleaning spring 4 is larger and the cleaning effect is better; meanwhile, the strength of the cleaning spring 4 is ensured; the specific structure of the cleaning spring 4 is shown in the attached drawings.

As a greater optimization, the outside of the single gasket 411 at the end of the cleaning spring 4 is provided with an avoidance notch 412; the arrangement of the avoiding gap 412 increases the contact area between the single gasket 411 at the edge of the cleaning spring 4 and the adjacent part, and avoids the extrusion damage to the adjacent part when the edge of the single gasket 411 at the outer side of the cleaning spring 4 is in contact with the adjacent part; in addition, monomer gasket 411 is equipped with the cross-under hole including filling up the body on filling up the body, and the edge of cross-under hole is equipped with transition arc limit, has reduced the scratch to drive shaft 3 when clearance spring 4 lateral shifting.

Obviously the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the method concept and technical solution of the present invention are all within the protection scope of the present invention.

Claims

1. A starter assembly for reducing reverse dragging faults is characterized by comprising a one-way clutch assembly, a driving shaft and a limiting ring; a cleaning spring for cleaning is arranged on the driving shaft; and two ends of the cleaning spring are respectively connected with the isolator assembly and the limiting ring.

2. The starter assembly for reducing back-dragging faults according to claim 1, wherein the cleaning spring is sleeved on the driving shaft; and two ends of the cleaning spring are respectively contacted with the isolator assembly and the limiting ring.

3. The starter assembly for reducing back-drag faults as claimed in claim 1, wherein said isolator assembly includes a drive gear having a detent recess at an end thereof for locating a cleaning spring.

4. The starter assembly for reducing back-dragging faults according to claim 1, wherein the cleaning spring comprises a plurality of gasket sets, and one end of each adjacent gasket set is connected; the gasket group comprises two single gaskets which are arranged in an intersecting manner; the intersected sides of the two single gaskets are connected; the joints of the adjacent gasket sets and the joints of the single gaskets are distributed on two sides of the cleaning spring.

5. The starter assembly for reducing back-dragging faults according to claim 4, wherein each gasket set is oppositely arranged; the two single gaskets in each gasket group are oppositely arranged.

6. The starter assembly for reducing back-dragging faults as claimed in claim 4, wherein an escape notch is provided on the outside of the single washer cleaning the end of the spring.