CN213511004U

CN213511004U - One-way device for vehicle starter

Info

Publication number: CN213511004U
Application number: CN202021787134.XU
Authority: CN
Inventors: 徐弘治
Original assignee: Zhejiang Kangling Auto Parts Co ltd
Current assignee: Zhejiang Kangling Auto Parts Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-22
Anticipated expiration: 2030-08-24

Abstract

The utility model provides a vehicle starter isolator. The problem that the isolator is damaged due to the fact that the driving gear on the isolator is directly collided and meshed with the driving gear on the engine and is prone to damage is solved. The utility model discloses when using, the starter drives the isolator and rotates, remove to the engine direction through shift fork drive casing and extension axle sleeve, drive gear on the extension axle sleeve and the running gear meshing on the engine, make drive gear more stable at the in-process with the running gear meshing through the longer axle sleeve of length, effectively reduce rocking of extension axle sleeve self, and through drive gear and the split type design of extension axle sleeve, drive gear sets up on the extension axle sleeve through the keyway activity and cushions drive gear through disc spring, the impact force that produces when effectively reducing drive gear and running gear meshing, effectively avoid drive gear's damage extension isolator's life.

Description

One-way device for vehicle starter

Technical Field

The utility model discloses equipment belongs to auto-parts technical field, in particular to vehicle starter isolator.

Background

The starter is a machine which converts the electric energy of a storage battery into mechanical energy to drive an engine flywheel to rotate so as to start the engine, a starter isolator is a transmission device which transmits the torque produced by a motor to the flywheel on the starter, different starters are provided with different isolators, common isolators are four types, namely a roller type isolator, a friction plate type isolator, a spring type isolator and a ratchet type isolator, the existing roller type isolator mainly comprises a driving gear, a star wheel, a clamping ring, a roller and other parts, and a proper amount of grease is usually coated on the roller to play a lubricating role.

Usually, the drive gear on the isolator is set up in the pivot for unidirectional rotation, and drive gear can't move along pivot length direction, and the engine is started after shift fork drive isolator moves to engine direction and makes isolator and the drive gear meshing on the engine, and the drive gear on the isolator directly collides and meshes with the drive gear on the engine, and the drive gear on the isolator takes place the damage that the damage leads to the isolator easily after colliding many times, and prior art exists and can improve the position.

Disclosure of Invention

The utility model discloses equipment is direct to drive gear on the isolator collides and meshes with the drive gear on the engine, and the damage that leads to the isolator to damage takes place easily not enough, provides a vehicle starter isolator.

The invention aims to be realized by the following technical scheme: the utility model provides a vehicle starter isolator which characterized in that, includes casing and the fixed extension axle sleeve that sets up in the casing and be connected with the starter, the keyway that extends along extension axle sleeve length direction is seted up to the periphery that extension axle sleeve kept away from casing one end, and this keyway place one end is the upper end, and the upper end activity of extension axle sleeve is provided with one and cooperatees with this keyway and can follow the drive gear that extension axle sleeve length direction moved on the keyway, the keyway lower extreme has seted up the round draw-in groove, and this draw-in groove periphery cover is equipped with a disc spring, and the upper end subsides of this disc spring are leaned on drive gear.

Preferably, a through hole penetrating through the lengthened shaft sleeve is formed in the lengthened shaft sleeve, and a first bushing and a second bushing are fixedly arranged in the through hole from bottom to top in sequence.

Preferably, a limiting ring is fixedly arranged in the through hole and is positioned above the second shaft bushing.

Preferably, the through hole is provided with a counterbore, the diameter of the counterbore is larger than that of the through hole, and the counterbore is positioned between the first bushing and the second bushing.

Preferably, the peripheries of the first bushing and the second bushing are provided with a plurality of grooves which extend along the length direction of the first bushing and the second bushing and penetrate through the first bushing and the second bushing.

Preferably, the inner diameters of the first bushing and the second bushing are smaller than the inner diameter of the limiting ring.

Preferably, five grooves are respectively formed in the first bushing and the second bushing.

Preferably, one end, far away from the clamping groove, of the key groove is provided with a circle of positioning groove, a check ring used for clamping the driving gear is sleeved in the positioning groove, and the outer diameter of the check ring is larger than the inner diameter of the driving gear.

Compared with the prior art, the starter drives the isolator to rotate when the starter is used, the shell and the lengthened shaft sleeve are driven to move towards the direction of an engine through the shifting fork, until the driving gear on the lengthened shaft sleeve is meshed with the rotating gear on the engine, the engine is driven to start through the rotating driving gear and the lengthened shaft sleeve, the driving gear is more stable in the process of being meshed with the rotating gear through the shaft sleeve support with longer length, the self-shaking of the lengthened shaft sleeve is effectively reduced, through the split type design of the driving gear and the lengthened shaft sleeve, the driving gear is movably arranged on the lengthened shaft sleeve through the key groove and buffers the driving gear through the butterfly spring, the impact force generated when the driving gear is meshed with the rotating gear is effectively reduced, the damage of the driving gear is effectively avoided, the service life of the isolator is prolonged, and the shrinkage generated when the first shaft sleeve and the second shaft sleeve are installed, the risk that the bushing falls off after installation is reduced, and the reliability of the product is improved.

Drawings

FIG. 1 is a view of the overall structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a sectional view of the present invention;

FIG. 4 is an overall structural view of the first bushing;

fig. 5 is an overall structural view of the second bushing.

The labels in the figure are: 1. a housing; 2. lengthening the shaft sleeve; 3. a keyway; 4. a drive gear; 5. a card slot; 6. a belleville spring; 7. a through hole; 8. a first bushing; 9. a second bushing; 10. a limiting ring; 11. reaming; 12. a groove; 13. positioning a groove; 14. and a retainer ring.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which: as shown in fig. 1-4, a vehicle starter isolator comprises a housing 1 and a lengthened shaft sleeve 2 fixedly arranged in the housing 1 and connected with a starter, wherein a key groove 3 extending along the length direction of the lengthened shaft sleeve 2 is formed in the periphery of one end, far away from the housing 1, of the lengthened shaft sleeve 2, the end, where the key groove 3 is located, is the upper end, a driving gear 4 which is matched with the key groove 3 and can move on the key groove 3 along the length direction of the lengthened shaft sleeve 2 is movably arranged at the upper end of the lengthened shaft sleeve 2, a circle of clamping groove 5 is formed in the lower end of the key groove 3, a disc spring 6 is sleeved on the periphery of the clamping groove 5, and the upper end of the disc spring 6 is attached to.

One end of the key groove 3, which is far away from the clamping groove 5, is provided with a circle of positioning groove 13, a check ring 14 used for clamping the driving gear 4 is sleeved in the positioning groove 13, the outer diameter of the check ring 14 is larger than the inner diameter of the driving gear 4, and the distance of the driving gear 4 moving along the length direction of the key groove 3 is limited through the check ring 14 and the driving gear 4 is prevented from being separated from the lengthened shaft sleeve 2.

A through hole 7 penetrating through the lengthened shaft sleeve 2 is formed in the lengthened shaft sleeve 2, and a first shaft bushing 8 and a second shaft bushing 9 are sequentially and fixedly arranged in the through hole 7 from bottom to top. A limiting ring 10 is fixedly arranged in the through hole 7, and the limiting ring 10 is positioned above the second shaft bushing 9. The through hole 7 is provided with a reaming hole 11, the diameter of the reaming hole 11 is larger than that of the through hole 7, and the reaming hole 11 is positioned between the first bushing 8 and the second bushing 9. The peripheries of the first bushing 8 and the second bushing 9 are provided with a plurality of grooves 12 which extend along the length direction of the first bushing 8 and the second bushing 9 and penetrate through the first bushing 8 and the second bushing 9. Five grooves 12 are formed in the first bushing 8 and the second bushing 9, respectively. The inner diameters of the first bushing 8 and the second bushing 9 are smaller than the inner diameter of the stop collar 10. The second bushing 9 is further reduced in friction between the second bushing 9 and the inner wall of the through hole 7 when the second bushing 9 is installed through a reaming hole 11 which is formed in the through hole 7 and is positioned between the first bushing 8 and the second bushing 9, and abrasion of the outer wall of the second bushing 9 is reduced.

When the starter is used, the starter drives the isolator to rotate, the shell 1 and the lengthened shaft sleeve 2 are driven to move towards the direction of an engine through the shifting fork until the driving gear 4 on the lengthened shaft sleeve 2 is meshed with a rotating gear on the engine, the engine is driven to start through the rotating driving gear 4 and the lengthened shaft sleeve 2, the driving gear 4 is more stable in the process of being meshed with the rotating gear through the support of the shaft sleeve with longer length, the shaking of the lengthened shaft sleeve 2 is effectively reduced, the driving gear 4 and the lengthened shaft sleeve 2 are in a split type design, the driving gear 4 is movably arranged on the lengthened shaft sleeve 2 through the key groove 3 and buffers the driving gear 4 through the belleville spring 6, the impact force generated when the driving gear 4 is meshed with the rotating gear is effectively reduced, the damage of the driving gear 4 is effectively avoided, the service life of the isolator is prolonged, and the first shaft liner 8 and the second shaft liner 9 are The generated shrinkage reduces the risk that the first bushing and the second bushing fall off after installation, and improves the reliability of the product.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a vehicle starter isolator, its characterized in that, includes casing (1) and fixed extension axle sleeve (2) that sets up in casing (1) and be connected with the starter, extension axle sleeve (2) keep away from the periphery of casing (1) one end and offer keyway (3) along extension axle sleeve (2) length direction extension, and this keyway (3) place one end is the upper end, and the upper end activity of extension axle sleeve (2) is provided with one and cooperatees with this keyway (3) and can follow drive gear (4) that extension axle sleeve (2) length direction moved on keyway (3), round draw-in groove (5) have been seted up to keyway (3) lower extreme, and this draw-in groove (5) periphery cover is equipped with one disc spring (6), and the upper end subsides of this disc spring (6) are leaned on the lower terminal surface of drive gear (4.

2. The one-way clutch for the starter of the vehicle is characterized in that a through hole (7) penetrating through the lengthened shaft sleeve (2) is formed in the lengthened shaft sleeve (2), and a first bushing (8) and a second bushing (9) are fixedly arranged in the through hole (7) from bottom to top in sequence.

3. A vehicle starter isolator as claimed in claim 2, wherein a retainer ring (10) is fixedly disposed in said through hole (7), said retainer ring (10) being located above said second bushing (9).

4. A vehicle starter isolator as claimed in claim 3, wherein the through bore (7) is provided with a counterbore (11), the counterbore (11) having a diameter greater than the diameter of the through bore (7) and the counterbore (11) being located between the first bushing (8) and the second bushing (9).

5. The vehicle starter one-way clutch according to claim 2, characterized in that a plurality of grooves (12) which extend along the length direction of the first bushing (8) and the second bushing (9) and penetrate through the first bushing (8) and the second bushing (9) are formed on the outer peripheries of the first bushing (8) and the second bushing (9).

6. A vehicle starter isolator as claimed in claim 3, wherein the first bushing (8) and the second bushing (9) have an inner diameter smaller than the inner diameter of the retainer ring (10).

7. A vehicle starter isolator as claimed in claim 5, characterised in that the grooves (12) in the first bushing (8) and the second bushing (9) are provided with five grooves, respectively.

8. The vehicle starter isolator as claimed in claim 1, wherein a ring of positioning grooves (13) are formed in one end of the key groove (3) far away from the clamping groove (5), a retaining ring (14) for clamping the driving gear (4) is sleeved in the positioning grooves (13), and the outer diameter of the retaining ring (14) is larger than the inner diameter of the driving gear (4).