CN212297339U

CN212297339U - Bidirectional buffering one-way clutch

Info

Publication number: CN212297339U
Application number: CN202020792141.2U
Authority: CN
Inventors: 王维涛; 王建江
Original assignee: WUXI SUPERHUMAN GEAR COLD EXTRUSION CO Ltd
Current assignee: WUXI SUPERHUMAN GEAR COLD EXTRUSION CO Ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-01-05
Anticipated expiration: 2030-05-13

Abstract

The utility model belongs to the technical field of clutch equipment, and relates to a bidirectional buffering one-way clutch, which comprises a sleeve, wherein a cylindrical section of the sleeve is rotationally connected with a driving gear, a bulge barrow extending along the length direction is arranged in the inner circle of the splined section of the sleeve, and a bidirectional moving slip ring assembly is arranged on the outer circle of the splined section of the sleeve; the bidirectional movement slip ring component comprises a gasket, a cylindrical spring and a spring seat bowl which are sequentially arranged on the outer circle of the sleeve spline section from left to right, the two axial ends of the cylindrical spring are respectively tightly propped against the gasket and the spring seat bowl, and the axial outer end of the spring seat bowl is axially limited through a limiting structure arranged on the outer circle of the sleeve spline section. The clutch can prevent the movable slip ring and the check ring from being worn and early lost, thereby prolonging the service life of the one-way clutch.

Description

Bidirectional buffering one-way clutch

Technical Field

The utility model belongs to the technical field of clutch equipment, a one-way clutch of two-way buffering is related to.

Background

At present, most of unions at home and abroad adopt a structure that a cylindrical spring is sleeved on a small outer circle of a sleeve to support a movable sliding ring for buffering, (the structure is shown in figure 1), a movable shifting fork is embedded into a groove formed by the movable sliding ring and a retaining ring, a starter is powered on when the unions work, the movable shifting fork pushes a one-way clutch to move leftwards to be meshed with a gear ring of an engine, and when tooth jacking occurs, the cylindrical spring compresses the one-way clutch to buffer and move forwards, so that the one-way clutch is protected; after starting, the shifting fork is moved to drive the one-way clutch to move backwards, common friction resistance between an inner hole of a driving gear of the one-way clutch and a supporting excircle of a transmission shaft of a starter and between an inner spline of a sleeve of the one-way clutch and an outer spline meshed with the transmission shaft of the starter is overcome during backward movement, particularly when resistance generated after abrasion matching of parts is changed after the one-way clutch is used for a certain time is large, abrasion of the movable sliding ring and the check ring is large, early failure of the movable sliding ring and the check ring is caused, and in order to prevent early failure of the one-way clutch, the one-way clutch capable of performing two-way buffering.

Disclosure of Invention

To the above problem, the utility model provides a one way clutch of two-way buffering, this clutch can prevent to remove the sliding ring and become invalid with the retaining ring wearing and tearing early to can improve one way clutch's life.

According to the technical scheme of the utility model: a bidirectional buffering one-way clutch is characterized in that: the bidirectional sliding ring device comprises a sleeve, wherein a cylindrical section of the sleeve is rotatably connected with a driving gear, a protrusion barrow extending along the length direction is arranged on the inner circle of a splined section of the sleeve, and a bidirectional moving sliding ring assembly is arranged on the outer circle of the splined section of the sleeve;

the bidirectional moving slip ring assembly comprises a gasket, a cylindrical spring and a spring seat bowl which are sequentially arranged on the excircle of the spline section of the sleeve from left to right, the two axial ends of the cylindrical spring are respectively tightly propped against the gasket and the spring seat bowl, and the axial outer end of the spring seat bowl is axially limited by a limiting structure arranged on the excircle of the spline section of the sleeve;

the utility model discloses a slip ring, including cylindrical spring, ring spring, packing ring, cone, slip ring, the outer lane cover of cylindrical spring establishes the seat circle, and the axial one end and the spacing connection of packing ring of seat circle, and the axial other end of seat circle is equipped with the ring shape bead of a body coupling, set up the pagoda spring between packing ring and the ring shape bead, remove the sliding ring, pagoda spring internal diameter tip is tight on the packing ring, and the internal diameter main aspects top is tight on removing the sliding ring, and the left end face that removes the sliding ring is equipped with the cone portion, and it is spacing that the right.

As the utility model discloses a further improvement, the one-way bearing of installation on drive gear's the diameter of axle, circular inserted sheet is inlayed to drive gear's square groove, and during the one-way bearing hole was inlayed to the right-hand member excircle portion of circular inserted sheet, the excircle connecting sleeve cylinder section of one-way bearing still set up the shroud in drive gear's the square groove, and the hole of shroud cylinder section is arranged in to telescopic cylinder section excircle.

As a further improvement, the left end face of the sleeve is offset from the right end face of the circular insertion piece.

As the utility model discloses a further improvement, limit structure inlays the steel wire retaining ring including setting up in the spacing groove of sleeve spline section excircle in the spacing groove, and the steel wire retaining ring excircle cup joints in spring holder bowl right-hand member hole.

As a further improvement, be circumference form equipartition on the gasket and set up a plurality of locating holes, the axial tip cooperation locating hole of seat circle sets up a plurality of bosss, and the boss stretches into in the locating hole to the periphery turn-ups riveting of looks locating hole.

As a further improvement, the barrel part of the seat ring is located to the barrel part cover that removes the sliding ring, and the barrel part right-hand member face that removes the sliding ring supports and leans on in ring shape bead left end face.

As a further improvement, the movable shifting fork is an annular part, and the excircle of the movable shifting fork is provided with a first tower and a second tower which are centrosymmetric.

The technical effects of the utility model reside in that: the utility model discloses product design is ingenious, reasonable, at the during operation, can carry out two-way buffering, can effectively avoid removing sliding ring and retaining ring early failure.

Drawings

Fig. 1 is a schematic diagram of a conventional structure.

Fig. 2 is a schematic structural diagram of the present invention.

FIG. 3 is a cross-sectional view of the sleeve bore.

FIG. 4 is a schematic view of the race construction.

Fig. 5 is a schematic structural view of the gasket.

Fig. 6 is a schematic structural view of the shift fork.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

In fig. 2 to 6, the device comprises a driving gear 1, a first groove 101, a second groove 102, a cover 2, an insert 3, a one-way bearing 4, a sleeve 5, a rib 501, a two-way moving slip ring assembly 6, a pagoda spring 601, a moving slip ring 602, a left end face 6021, an inner cone 6022, a seat ring 603, a circular rib 6031, a boss 6032, a moving fork 604, a first tower 6041, a second tower 6042, a gasket 605, a positioning hole 6051, a cylindrical spring 7, a spring seat bowl 8, a wire retainer ring 9, a bushing 10 and the like.

As shown in fig. 2~6, the utility model relates to a one way clutch of two-way buffering, which comprises a sleeve 5, drive gear 1, one way bearing 4 is installed to the outer disc of drive gear 1's axial region, the cylinder section hole of sleeve 5 supports in one way bearing 4's excircle, drive gear 1 is equipped with the square groove, set up circular inserted sheet 3 in the square groove, shroud 2, the right-hand member face of circular inserted sheet 3 offsets with the right-hand member face in square groove, the right-hand member excircle of circular inserted sheet 3 is the smooth face of cylinder, the smooth face of cylinder inlays in the 4 holes of one way bearing, one way bearing 4's hole is the smooth face of cylinder and inlays a cover type cylindrical shaft lining 10, the available powder metallurgy preparation of shaft lining 10 or. An involute gear matched with an engine is arranged on the outer circle of the left end of the driving gear 1, and the involute gear is formed through cold extrusion.

The sleeve 5 comprises a cylindrical section and a spline section which are coaxially connected, the diameter of the outer circle of the cylindrical section is larger than that of the outer circle of the spline section, the inner hole of the cylindrical section is sleeved on the outer circle of the one-way bearing 4, the outer circle of the cylindrical section is sleeved in the inner hole of the cover cap 2, the left end face of the cylindrical section is abutted against the right end face of the inserting piece 3, the inner circle of the spline section is provided with a convex edge 501 which extends along the length direction, is matched with the spline of the speed reducing shaft of the starter and can freely move along the axial direction of the spline, and the convex edge 501 is formed by material deformation in an inward stamping; the excircle of spline section is smooth face of cylinder, and smooth face of cylinder cup joints packing ring 605, cylindrical spring 7 and the spring holder bowl 8 in the two-way removal slip ring subassembly 6 from left to right in proper order, and the right-hand member department on smooth face of cylinder sets up limit structure to carry out axial spacing to spring holder bowl 8. The utility model discloses well limit structure's mode of setting as follows: set up the spacing groove at 5 spline section excircles of sleeve, inlay steel wire retaining ring 9 in the spacing groove, steel wire retaining ring 9's excircle cup joints in 8 right-hand members downtheholely at spring holder bowls, and restriction spring holder bowl 8 moves to the right.

A seat ring 603 is sleeved on the cylindrical spring 7, one axial end of the cylindrical spring 7 is tightly pressed on the gasket 605, the other axial end of the cylindrical spring 7 is tightly pressed on the spring seat bowl 8, the pagoda spring 601 and the movable sliding ring 602 are sequentially sleeved on the seat ring 603 from left to right, a circular ring-shaped convex edge 6031 (replacing a check ring of the original structure) is arranged at the right end of the excircle of the

seat ring

603, 4 uniformly distributed bosses 6032 are arranged at the left end, the 4 uniformly distributed bosses 6032 are embedded into positioning holes 6051 uniformly distributed in the circumferential direction of the gasket 605 and are turned over outwards for riveting, the relative positions of the seat ring 603 and the gasket 605 are fixed, thus, the outer circle race 603 and the washer 605 form a first groove 101, the left end of the first groove 101 is provided with a pagoda spring 601, the right end is provided with a movable sliding ring 602, the left end of the pagoda spring 601 is supported on the outer circle of the race 603 and the right end surface of the washer 605, and the right end is supported on the left end surface 6021 of the sliding ring 602 and the inner oblique conical surface of the inner cone 6022 extending leftwards. The movable sliding ring 602 is an L-shaped stamping part, an inner hole is sleeved at the right end of the outer circle of the seat ring 603, the right end face of the movable sliding ring is abutted against the left end face of an annular convex rib 6031 of the outer circle of the seat ring 603, the outer circle of the left end is provided with an inner cone 6022 extending leftwards, the inner cone 6022 abuts against the ridge of a steel wire at the right end of the pagoda spring 601, the outer circle of the right end is enabled not to deviate from the center when the pagoda spring 601 is compressed, the right end outer circle is connected with the left and right outer circles to form a second groove 102, and the left end face of the annular. The movable fork 604 is an annular component, and is integrally embedded in the second groove 102, and two first cylindrical towers 6041 and second cylindrical towers 6042 which are centrosymmetric are arranged on the outer circle, and the two

cylindrical towers

6041 and 6042 are used for being connected with a starter fork.

The utility model discloses a theory of operation is: after the starter is powered on, the starter shifting fork drives the one-way clutch to move leftwards through the moving shifting fork 604 in the two-way moving slip ring component 6, when the one-way clutch moves to contact with the top teeth of a gear ring of an engine, rebound force is generated backwards, the failure of the gear milling and other parts of the one-way clutch driving gear 1 is easily caused, after the two-way moving slip ring component 6 is installed, when the one-way clutch retreats under the rebound force, the pagoda spring 601 of the two-way moving slip ring component 6 is compressed, and the purpose of forward movement stress buffering of the one-way clutch is achieved; after starting, the starter shifting fork drives the one-way clutch to move backwards through the shifting fork 604 in the bidirectional shifting slip ring component 6, the common frictional resistance between the inner hole of the one-way clutch driving gear 1 and the supporting excircle of the starter transmission shaft and the external spline which is meshed with the internal spline of the one-way clutch sleeve 5 and the starter transmission shaft is overcome during backward movement, and when the common frictional resistance is applied to the one-way clutch, the cylindrical spring 7 is compressed, so that the purpose of buffering the backward movement stress of the one-way clutch is realized. Due to the fact that bidirectional buffering is achieved, early abrasion failure of the one-way clutch 1 caused by gear milling of the driving gear and the fact that the moving slip ring and the check ring (replaced by the circular-ring-shaped convex edge 6031 at the right end of the outer circle of the seat ring 603) of the one-way clutch 1 is prevented, and therefore the service life of the one-way clutch is prolonged.

Claims

1. A bidirectional buffering one-way clutch is characterized in that: the bidirectional sliding ring device comprises a sleeve (5), wherein a cylindrical section of the sleeve (5) is rotatably connected with a driving gear (1), a boss barrow (501) extending along the length direction is arranged in an inner circle of a splined section of the sleeve (5), and a bidirectional moving sliding ring assembly (6) is arranged in an outer circle of the splined section of the sleeve (5);

the bidirectional moving slip ring assembly (6) comprises a gasket (605), a cylindrical spring (7) and a spring seat bowl (8) which are sequentially arranged on the excircle of the spline section of the sleeve (5) from left to right, the two axial ends of the cylindrical spring (7) are respectively tightly propped against the gasket (605) and the spring seat bowl (8), and the outer axial end of the spring seat bowl (8) is axially limited by a limiting structure arranged on the excircle of the spline section of the sleeve (5);

seat circle (603) are established to cylinder spring (7) outer lane cover, and the axial one end and the packing ring (605) spacing connection of seat circle (603), and the axial other end of seat circle (603) is equipped with ring shape bead (6031) of integrative connection, set up pagoda spring (601), removal sliding ring (602) between packing ring (605) and ring shape bead (6031), small end top of pagoda spring (601) internal diameter is tight on packing ring (605), and the big end top of internal diameter is tight on removing sliding ring (602), and left end face (6021) that removes sliding ring (602) is equipped with cone portion (6022), and the right-hand member of pagoda spring (601) is spacing through cone portion (6022), removes and sets up between sliding ring (602) and the ring shape bead (6031) and removes shift fork (604).

2. The bi-directionally damped one way clutch as set forth in claim 1, wherein: one-way bearing (4) of installation on the diameter of axle of drive gear (1), circular inserted sheet (3) are inlayed to the square groove of drive gear (1), and one-way bearing (4) hole is inlayed to the right-hand member excircle portion of circular inserted sheet (3), and in excircle connecting sleeve (5) cylinder section of one-way bearing (4), still set up shroud (2) in the square groove of drive gear (1), the cylinder section excircle of sleeve (5) is arranged in the hole of shroud (2) cylinder section.

3. The bi-directionally damped one way clutch as set forth in claim 2, wherein: the left end face of the sleeve (5) is abutted against the right end face of the circular inserting piece (3).

4. The bi-directionally damped one way clutch as set forth in claim 1, wherein: limiting structure inlays steel wire retaining ring (9) including setting up in the spacing groove of sleeve (5) spline section excircle, and steel wire retaining ring (9) excircle cup joints in spring holder bowl (8) right-hand member hole.

5. The bi-directionally damped one way clutch as set forth in claim 1, wherein: a plurality of locating holes (6051) are uniformly distributed on the gasket (605) in a circumferential shape, a plurality of bosses (6032) are arranged on the axial end part of the seat ring (603) in a matching mode with the locating holes (6051), and the bosses (6032) extend into the locating holes (6051) and are riveted with the flanging of the periphery of the locating holes (6051).

6. The bi-directionally damped one way clutch as set forth in claim 1, wherein: the barrel body part of the moving sliding ring (602) is sleeved on the barrel body part of the seat ring (603), and the right end face of the barrel body part of the moving sliding ring (602) is abutted against the left end face of the circular ring-shaped rib (6031).

7. The bi-directionally damped one way clutch as set forth in claim 1, wherein: the movable shifting fork (604) is an annular part, and the excircle of the movable shifting fork (604) is provided with a first tower (6041) and a second tower (6042) which are centrosymmetric.