CN206694469U - The adjusting torque formula arrangement of clutch of isolator - Google Patents
The adjusting torque formula arrangement of clutch of isolator Download PDFInfo
- Publication number
- CN206694469U CN206694469U CN201720466487.1U CN201720466487U CN206694469U CN 206694469 U CN206694469 U CN 206694469U CN 201720466487 U CN201720466487 U CN 201720466487U CN 206694469 U CN206694469 U CN 206694469U
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- CN
- China
- Prior art keywords
- splined shaft
- seat cover
- spline housing
- shell
- return spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model discloses a kind of adjusting torque formula arrangement of clutch of isolator, including：Splined shaft, the reduction gearing being socketed on splined shaft, spline housing, friction rubber, sliding tooth and seat cover are sequentially provided with splined shaft, seat cover can be adjusted on splined shaft and fixed position, return spring is provided between seat cover and sliding tooth, return spring one end contacts with seat cover, the return spring other end and driving tooth contact, spline housing is wrapped with shell with friction rubber, friction rubber is fixedly connected with the inwall of shell, and spline housing can slide in shell, and shell welds with sliding tooth；The internal splined hole of spline housing matches connection with the external splines on splined shaft, so that spline housing rotates together with splined shaft, reduction gearing is fixedly connected with splined shaft, to realize isolator after high engine speeds operating, the power of engine will not reversely be transmitted to startup motor, and friction rubber persistently keeps contact condition with spline housing.
Description
Technical field
It the utility model is related to auto parts field, and in particular to a kind of adjusting torque formula arrangement of clutch of isolator.
Background technology
In the car, to realize that moment of torsion can only pass to engine by startup motor forward direction, and engine can not be by moment of torsion
For back transfer to the purpose for starting motor, generally use is isolator.Present isolator is roller mostly, its principle
It is that curved surface chute is provided with sleeve, by roller wedging, the power on power transmission shaft is delivered to drive by sleeve and roller
In moving teeth.This roller type one way device also needs in curved surface chute install roller, work, it is necessary to set curved surface chute on sleeve
Skill is complicated.
For such case, China Patent Publication No. is in CN106438752A document, discloses a kind of rubber friction
Formula one-way clutch, including helical spring, sliding tooth, rubber friction disc, spline housing and starter planet axis, starter planet axis
On be sequentially provided with helical spring, sliding tooth and spline housing from one end to the other side, internal splined hole and the starter planet of spline housing
External splines matching connection on axle.Sliding tooth is socketed in starter planet axis, and sliding tooth is glued towards spline housing end face with glue
Rubber friction disc is pasted, rubber friction disc is close to towards spline housing end face with spline housing.
In this scheme, helical spring applies elastic force to sliding tooth, and in electric motor starting, spline housing is to compression helical spring
Direction movement, then spline housing rotates under the drive of starter planet axis, and spline housing passes through between rubber friction disc
Frictional force, sliding tooth is driven to rotate.This just proposes requirement to the frictional force between spline housing and rubber friction disc, in the program
Frictional force can not be adjusted, can not be driven well in some engines occasion higher to the moment of torsion of startup（Forward direction transmission
Counteracted by the relative rotation of rubber friction disc and spline housing）, i.e. the also not actuated success of engine, rubber friction disc just directly with
Spline housing Relative friction（Also referred to as surmount）, which limits use range, and after helical spring aging, under elasticity
Drop, also occurs the state surmounted, which limits the service life of existing isolator.
And the rubber friction disc between sliding tooth and spline housing in this scenario, is relied primarily on to realize transmission, and
Sliding tooth pastes merely by glue again with rubber friction disc.In use, when rubber friction disc works, it is
May be a kind of high temperature（Frictional heat）High pressure（Rubber friction disc is clipped in the middle by sliding tooth and spline housing）Environment, and
The side force vertical with Nian Jie direction also be present（The moment of torsion of rotation）.In such a case, glue is easy for failing, driving
Tooth is easy to just separate with rubber friction disc, i.e. the service life of the program is relatively low.
For the above situation, people are in order to overcome sliding tooth segregative in use for some time with rubber friction disc
Technical problem, it is thought that in sliding tooth and rubber friction disc increasing friction force by way of mortise-tenon joint, but effect
Still undesirable, main cause is, when starter planet axis starts to rotate, larger moment of torsion to be produced, although can pass through flower
Key covers offsets a part in relative rotation with rubber friction disc, but sliding tooth still receives very big power, tenon with friction rubber
Although the mode of fourth of the twelve Earthly Branches connection increases bonding strength, but due to（Sliding tooth and rubber friction disc）Stress is always a direction
（Always a direction allows engine start to motor）, using the position that after the time of one end, rubber friction disc is connected with sliding tooth
Also it can gradually deform, ultimately result in and come off.
Utility model content
The utility model is directed to the technical problem that existing isolator use range is narrow, service life is short, there is provided a kind of
The adjusting torque formula arrangement of clutch of isolator.
Base case provided by the utility model is：The adjusting torque formula arrangement of clutch of isolator, including：Splined shaft；Flower
The reduction gearing being socketed on splined shaft, spline housing, friction rubber, sliding tooth and seat cover are sequentially provided with key axle, seat cover can
Regulation and fixed position, are provided with return spring on splined shaft between seat cover and sliding tooth, and return spring one end contacts with seat cover,
The return spring other end is wrapped with the inwall of shell, friction rubber and shell with friction rubber with driving tooth contact, spline housing
It is fixedly connected, spline housing can slide in shell, and shell welds with sliding tooth；It is outer on the internal splined hole and splined shaft of spline housing
Spline matching connection so that spline housing is rotated together with splined shaft, and reduction gearing is fixedly connected with splined shaft.
The adjusting torque formula arrangement of clutch of the utility model isolator, shell is to be fixedly connected with sliding tooth in this programme
, spline housing is with friction rubber in shell.Rotated in motor driven reduction gearing（Reduction gearing can reduce motor
Rotating speed, to improve moment of torsion）, reduction gearing drive splined shaft rotate, splined shaft rotate when, spline housing, friction rubber, shell with
And sliding tooth one moves under effect of inertia to the direction of compression retracteding position spring（I.e. splined shaft rotate, but spline housing due to
Effect of inertia will not also rotate, then because the relation of spline housing and splined shaft, spline housing produce relative rotation with splined shaft）,
The drive connection of spline housing and splined shaft is established, and spline housing starts to rotate under the drive of splined shaft, and spline housing passes through power
Frictional force（Can be static friction or dynamic friction）Mode pass to friction rubber, friction rubber again transmits power
To shell, shell is fixedly connected with sliding tooth, and power just passes to drive gear.Engine rotation is driven by drive gear,
Reach the process for starting engine.
When the transmission of motor and engine occurs abnormal（As motor is stuck, and the biography between spline housing and splined shaft
When between grade friction rubber and shell without departing from there is the situation for surmounting moment of torsion in dynamic relation）, engine passes to the moment of torsion of motor
Will be very big, can be by relatively rotating between friction rubber and spline housing, realization surmounts, and avoids this with situation to motor belt motor
To damage, vice versa.It is achieved in no matter positive be driven（From motor to engine）Or reverse drive（From engine to electricity
Machine）Under state, as long as there is the situation for surmounting moment of torsion, this programme can realize that power separates, avoid to engine or
Motor belt motor is damaged.
After the start of engine, the rotating speed of drive gear is higher than motor（Splined shaft in other words）Rotating speed when, due to used
Property and return spring double action, the direction that spline housing is resetted to return spring moved, and the transmission of spline housing and splined shaft is closed
System departs from, and avoids the power reverse of engine from being delivered to motor.To realize isolator after high engine speeds operating, engine
Power will not reversely be transmitted to the purpose for starting motor.
After friction rubber abrasion, because in electric motor starting, spline housing can also extrusion friction rubber in the presence of inertia
Glue so that certain deformation occurs for friction rubber, makes contact of the friction rubber with shell even closer, extends friction so as to reach
The purpose of rubber service life（In the prior art, this extruding can reduce friction rubber service life）.
In this programme, the position that can be covered on by adjustment seat on splined shaft, that is, adjust between seat cover and sliding tooth
Spacing, reaches and changes pressure of the return spring to sliding tooth, and the pressure change of sliding tooth can adjust spline housing and friction rubber
Between pressure effect.Again due to the surface between the frictional force between spline housing and friction rubber and spline housing and friction rubber
Roughness and pressure are directly proportional, thus reach the purpose of frictional force between regulation spline housing and friction rubber.So as to allow isolator
Use range it is wider, adapt to different engines.
The adjusting torque formula arrangement of clutch of the utility model isolator, by spline housing and friction rubber, friction rubber
Flexible connection is established between shell, makes rotation speed change of the motor in start-up course more flexible, is more favorable for motor, spline
The maintenance of set and splined shaft, improves its service life.And in this programme, shell is fixedly connected with sliding tooth, with existing skill
Art is compared, just change it is friction rubber with sliding tooth contact form, on the one hand by friction rubber side in extrusion process（With
End face distinguishes）Deformation also use, on the other hand can also reach protection spline tooth, the purpose of friction rubber.Make
Even if being deformed upon with friction rubber after the time of one end, but it is still located in shell, and the deformation that friction rubber occurs only can
Frictional force between increase friction rubber and outer casing inner wall, it is easy between sliding tooth and rubber friction disc in the prior art to avoid
Situation about coming off in use.
And after return spring aging, the position of seat cover can also be adjusted, reduces the spacing between seat cover and sliding tooth,
Friction rubber is allowed persistently to keep contact condition with spline housing.Further increase the service life.
Further, seat cover is threadedly coupled with splined shaft, and the outside of seat cover is provided with anti-release member.It so can conveniently adjust seat cover
Position, and anti-release member also can guarantee that the position of seat cover will not arbitrarily change.
Further, packing ring is provided between seat cover and return spring, seat cover is provided with the annular groove for packing ring insertion, return spring
Packing ring is propped up in embedded annular groove.Packing ring is more steady in order to allow return spring to contact with seat cover.
Further, the surface that splined shaft contacts with seat cover is provided with groove, and the jump ring of limitation seat cover movement is provided with groove.This
The design of sample has been set to fixed seat cover, return spring, sliding tooth and shell.
Brief description of the drawings
Fig. 1 is the structural representation of the adjusting torque formula arrangement of clutch embodiment of the utility model isolator.
Embodiment
The utility model is described in further detail below by embodiment：
Reference in Figure of description includes：It is splined shaft 10, reduction gearing 11, spline housing 20, friction rubber 21, outer
Shell 22, sliding tooth 30, return spring 40, seat cover 50, anti-release member 51.
Embodiment 1
Substantially as shown in Figure 1：The adjusting torque formula arrangement of clutch of isolator, including：Splined shaft 10；On splined shaft 10 according to
It is secondary to be provided with reduction gearing 11, spline housing 20, friction rubber 21, sliding tooth 30 and the seat cover 50 being socketed on splined shaft 10.Flower
The metal material that key axle 10, reduction gearing 11, spline housing 20, the material of sliding tooth 30 and seat cover 50 are all selected, rub rubber
The nitrile rubber that glue 21 is selected.
Seat cover 50 is threadedly coupled with splined shaft 10, and the outside of seat cover 50 is provided with anti-release member 51（Anti-release member 51 in the present embodiment
The bolt of selection）, return spring 40 is provided between seat cover 50 and sliding tooth 30, the one end of return spring 40 contacts with seat cover 50, returns
The position other end of spring 40 contacts with sliding tooth 30, and spline housing 20 is wrapped with the shell 22 of metal material with friction rubber 21, rubs
Wipe rubber 21 to be fixedly connected with the inwall of shell 22, the swelling connection selected in the present embodiment（That is the diameter of friction rubber 21 is big
In the internal diameter of shell 22）, spline housing 20 can be slided in the shell 22, and shell 22 weld with sliding tooth 30；The interior flower of spline housing 20
Keyhole matches connection with the external splines on splined shaft 10 so that spline housing 20 rotates together with splined shaft 10, reduction gearing 11 with
Splined shaft 10 is fixedly connected.
When specifically used：Shell 22 is fixedly connected with sliding tooth 30, and spline housing 20 is positioned at outer with friction rubber 21
In shell 22.Rotated in motor driven reduction gearing 11（Reduction gearing 11 can reduce the rotating speed of motor, to improve moment of torsion）, subtract
Fast gear 11 drives splined shaft 10 to rotate, when splined shaft 10 rotates, spline housing 20, friction rubber 21, shell 22 and sliding tooth
30 one move under effect of inertia to the direction of compression retracteding position spring 40（I.e. splined shaft 10 rotates, but spline housing 20 due to
Effect of inertia will not also rotate, then because the relation of spline housing 20 and splined shaft 10, spline housing 20 produce phase with splined shaft 10
To rotating）, the drive connection of spline housing 20 and splined shaft 10 establishes, and spline housing 20 starts to rotate under the drive of splined shaft 10,
Power is passed through frictional force by spline housing 20（Can be static friction or dynamic friction）Mode pass to friction rubber 21,
Friction rubber 21 imparts power to shell 22 again, and shell 22 is fixedly connected with sliding tooth 30, and power just passes to sliding tooth 30
Take turns.Drive engine rotation is taken turns by sliding tooth 30, reaches the process for starting engine.
Embodiment 2
Compared with Example 1, the difference is that only, packing ring is provided between seat cover and return spring, and seat cover, which is provided with, to be supplied
The annular groove of packing ring insertion, return spring are embedded in annular groove and prop up packing ring.The surface that splined shaft contacts with seat cover is provided with groove, groove
The interior jump ring for being provided with limitation seat cover movement.It is such to be set to fixed seat cover, return spring, sliding tooth and shell.Pad
Circle is more steady in order to allow return spring to contact with seat cover.
Above-described is only embodiment of the present utility model, and the general knowledge such as known concrete structure and characteristic is herein in scheme
Do not describe excessively.It should be pointed out that for those skilled in the art, the premise of the utility model structure is not being departed from
Under, several modifications and improvements can also be made, these should also be considered as the scope of protection of the utility model, and these are all without influence
The effect and practical applicability that the utility model is implemented.This application claims protection domain should be with the content of its claim
It is defined, the record such as embodiment in specification can be used for the content for explaining claim.
Claims (4)
1. the adjusting torque formula arrangement of clutch of isolator, including splined shaft；It is socketed in characterized in that, being sequentially provided with splined shaft
Reduction gearing, spline housing, friction rubber, sliding tooth and seat cover on splined shaft, seat cover can be adjusted and fixed on splined shaft
Position, return spring is provided between seat cover and sliding tooth, return spring one end contacts with seat cover, the return spring other end and driving
Tooth contact, spline housing are wrapped with shell with friction rubber, and friction rubber is fixedly connected with the inwall of shell, and spline housing can be outside
Slided in shell, shell welds with sliding tooth；The internal splined hole of spline housing matches connection with the external splines on splined shaft so that spline
Set is rotated together with splined shaft, and reduction gearing is fixedly connected with splined shaft.
2. the adjusting torque formula arrangement of clutch of isolator according to claim 1, it is characterised in that seat cover and splined shaft spiral shell
Line connects, and the outside of seat cover is provided with anti-release member.
3. the adjusting torque formula arrangement of clutch of isolator according to claim 1, it is characterised in that seat cover and return spring
Between be provided with packing ring, seat cover is provided with the annular groove for packing ring insertion, and packing ring is propped up in return spring insertion annular groove.
4. the adjusting torque formula arrangement of clutch of the isolator according to claim any one of 1-3, it is characterised in that splined shaft
The surface contacted with seat cover is provided with groove, and the jump ring of limitation seat cover movement is provided with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466487.1U CN206694469U (en) | 2017-04-28 | 2017-04-28 | The adjusting torque formula arrangement of clutch of isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466487.1U CN206694469U (en) | 2017-04-28 | 2017-04-28 | The adjusting torque formula arrangement of clutch of isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694469U true CN206694469U (en) | 2017-12-01 |
Family
ID=60446877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720466487.1U Expired - Fee Related CN206694469U (en) | 2017-04-28 | 2017-04-28 | The adjusting torque formula arrangement of clutch of isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206694469U (en) |
-
2017
- 2017-04-28 CN CN201720466487.1U patent/CN206694469U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20200428 |