CN106481786B - Double clutch gearboxes and its sealing device - Google Patents
Double clutch gearboxes and its sealing device Download PDFInfo
- Publication number
- CN106481786B CN106481786B CN201510535368.2A CN201510535368A CN106481786B CN 106481786 B CN106481786 B CN 106481786B CN 201510535368 A CN201510535368 A CN 201510535368A CN 106481786 B CN106481786 B CN 106481786B
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- Prior art keywords
- shell
- oil duct
- groove
- wall
- sealing ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
- F16H61/0009—Hydraulic control units for transmission control, e.g. assembly of valve plates or valve units
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A kind of double clutch gearboxes and its sealing device, double clutch gearboxes include: the hydraulic control unit shell equipped with the first oil duct；Clutch housing equipped with the second oil duct；Sealing device, it is located in the first and second oil duct along axial both ends, and include: shell, have along axially through, the hollow hole that is connected to the first and second oil duct, the axial ends of shell is born against on hydraulic control unit shell, clutch housing along two opposite axial directions；The first and second groove being located on the outer wall of shell axial ends；The first sealing ring in the first groove, the first sealing ring are interference fitted with the inner wall of the first oil duct, the bottom wall of the first groove；The second sealing ring in the second groove, the second sealing ring are interference fitted with the inner wall of the second oil duct, the bottom wall of the second groove.It is vulnerable that the present invention solves the problems, such as that existing sealing device is not easy to implement and seal with hydraulic control unit shell, clutch housing assembling means.
Description
Technical field
The present invention relates to automotive fields, more particularly to a kind of double clutch gearboxes and its sealing device.
Background technique
Double clutch gearboxes (Dual Clutch Transmission, abbreviation DCT) are a kind of novel gearboxes, it will
Gearbox-gear is arranged on two input shafts coupled with two clutches by odd, even number, passes through two clutches
Alternating switching complete shift process, realize power shifting.Double clutch gearboxes combine hydrodynamic mechanic automatic transmission and electricity
The advantages of controlling mechanical automatic gearbox, transmission efficiency is high, structure is simple, not only ensure that the dynamic property and economy of vehicle,
And significantly improve the comfort of vehicle operation.
Hydraulic control unit and clutch are the important components of double clutch gearboxes, and the main function of hydraulic control unit is
The movement of clutch and shift fork is controlled by hydraulic oil, the main function of clutch is the transmission or interruption for realizing power.Such as Fig. 1
Shown, the shell 1 of hydraulic control unit is equipped with the first oil duct 2, and the shell 3 of clutch is equipped with the second oil duct 4, the first oil duct 2 with
It is connected between second oil duct 4 by sealing device 5, sealing device 5 is to utilize annular element made of covered material.Hydraulic oil is from
One oil duct 2 flows to the second oil duct 4 by sealing device 5, to control the clutch of clutch.Sealing device 5 and the first oil duct 2,
The inner wall of two oil ducts 4 is closely sticked together, and prevents hydraulic oil between sealing device 5 and the first oil duct 2, sealing device 5
It is leaked between the second oil duct 4.
But there are following deficiencies for above-mentioned existing sealing device 5:
1) assembly of shell 3 of sealing device 5, the shell 1 of hydraulic control unit, clutch is existed using plastic sealing technology
Together, specifically, firstly, one end of sealing device 5 is sticked on the inner wall of the first oil duct 2, then, by sealing device 5
The other end sticks on the inner wall of the second oil duct 4.Sealing device 5 is sticked in into the first oil duct 2, the operation on the second oil duct 4 not
Easily implement, and sealing device 5 and the adhesion of the first oil duct 2, the second oil duct 4 are vulnerable, cause hydraulic oil from sealing device 5 and the
It is leaked between one oil duct 2, between sealing device 5 and the second oil duct 4.
2) when the shell 3 of the shell 1 of hydraulic control unit and clutch is split next, the shell of hydraulic control unit
Hydraulic oil in 1 can leak.
Summary of the invention
The problem to be solved in the present invention is: existing sealing device and hydraulic control unit shell, clutch housing assemble hand
Duan Buyi implements and seals vulnerable.
The invention solves another problem is that by the shell of hydraulic control unit shell and clutch split come when,
The intracorporal hydraulic oil of hydraulic control unit shell can leak.
To solve the above problems, the present invention provides a kind of double clutch gearboxes, comprising:
Hydraulic control unit shell equipped with the first oil duct；
Clutch housing equipped with the second oil duct；
Sealing device is located in first and second oil duct along axial both ends, and includes:
Shell, have along axially through hollow hole, the hollow hole is connected to the first and second oil duct, the axis of the shell
It is born against on hydraulic control unit shell, clutch housing to both ends along two opposite axial directions；
The first and second groove being located on the outer wall of the shell axial ends, first and second groove is along shell
Radial depressions；
The first sealing ring in first groove, it is the inner wall of first sealing ring and the first oil duct, first recessed
The bottom wall of slot is interference fitted；
The second sealing ring in second groove, it is the inner wall of second sealing ring and the second oil duct, second recessed
The bottom wall of slot is interference fitted.
Optionally, further includes:
The valve rod being movably located in the hollow hole, there are between radial direction between the valve rod and the hole wall of hollow hole
Every；
Elastic component in the hollow hole, the elastic component in compressive state along shell axially clamp valve rod,
Between the hole wall of hollow hole.
Optionally, further includes: the third groove positioned at valve rod axial direction one end, the third groove are radially recessed along valve rod
It falls into；Third sealing ring in the third groove, the third sealing ring be located in the first oil duct and stretch out hollow hole it
Outside；
The hollow hole includes one section of truncated cones hole for being located at axial end portion, and the truncated cones hole is located at the first oil duct
It is interior；
It is not assembled together with clutch housing in the sealing device but is assembled together with hydraulic control unit shell
In the state of, the third sealing ring edge is towards the direction of elastic component against the hole wall in the truncated cones hole.
Optionally, the elastic component is spring.
Optionally, the inner wall of second oil duct is equipped with the boss that radially extends, the side of the boss along from from
Clutch shell is directed toward the axial direction of hydraulic control unit shell against the end of valve rod.
Optionally, the outer wall of the shell is equipped with the annular flange that radially extends, and the annular flange is along from clutch
Device shell is directed toward the axial direction of hydraulic control unit shell against hydraulic control unit shell.
In addition, the present invention also provides a kind of sealing device for double clutch gearboxes, double clutch speed-changing luggages
The hydraulic control unit shell equipped with the first oil duct and the clutch housing equipped with the second oil duct are included, the sealing device is along axial
Both ends for being separately positioned in first and second oil duct；
The sealing device includes:
Shell, have along axially through hollow hole, the hollow hole with the first and second oil duct for being connected to, the shell
Axial ends for bearing against along two opposite axial directions in hydraulic control unit shell, clutch housing；
The first and second groove being located on the outer wall of the shell axial ends, first and second groove is along shell
Radial depressions；
The bottom wall interference of the first sealing ring in first groove, first sealing ring and the first groove is matched
It closes, and for being interference fitted with the inner wall of the first oil duct；
The bottom wall interference of the second sealing ring in second groove, second sealing ring and the second groove is matched
It closes, and for being interference fitted with the inner wall of the second oil duct.
Optionally, further includes:
The valve rod being movably located in the hollow hole, there are between radial direction between the valve rod and the hole wall of hollow hole
Every；
Elastic component in the hollow hole, the elastic component in compressive state along shell axially clamp valve rod,
Between the hole wall of hollow hole.
Optionally, further includes: the third groove positioned at valve rod axial direction one end, the third groove are radially recessed along valve rod
It falls into；Third sealing ring in the third groove, the third sealing ring stretch out except hollow hole and for being arranged the
In one oil duct；
The hollow hole includes one section of truncated cones hole for being located at axial end portion, and the third sealing ring is along towards elastic component
Direction against the truncated cones hole hole wall.
Optionally, the elastic component is spring.
Optionally, the outer wall of the shell is equipped with the annular flange radially extended, and the annular flange is used for along certainly
Clutch housing is directed toward the axial direction of hydraulic control unit shell against hydraulic control unit shell.
Compared with prior art, technical solution of the present invention has the advantage that
Sealing device includes shell and the first and second sealing ring.Shell have along axially through hollow hole and respectively position
In the first and second groove on the outer wall of shell axial ends, the first sealing ring be located in the first groove and in the first oil duct
Wall, the first groove bottom wall be interference fitted, the second sealing ring be located in the second groove and with the inner wall of the second oil duct, second recessed
The bottom wall of slot is interference fitted, prevent hydraulic oil between the first sealing ring and the inner wall of the first oil duct, the first sealing ring with
It is leaked between first groove, between the second sealing ring and the inner wall of the second oil duct, between the second sealing ring and the second groove, so that
Under the sealing function of the first and second sealing ring, the hydraulic oil in the first oil duct is only capable of flowing to the second oil duct via hollow hole.Due to
The axial ends of shell is born against on hydraulic control unit shell, clutch housing along two opposite axial directions, energy
Enough prevent sealing device after assembly from shaking in the axial direction.By sealing device and hydraulic control unit shell, clutch housing
When being assembled together, firstly, axial one end of sealing device is filled in the first oil duct, until sealing device is because by hydraulic control
The blocking of unit housings and stop being sent into.Then, the axial other end of sealing device is filled in the second oil duct, until sealing dress
It sets and stops being sent into due to the blocking by clutch housing.With existing sealing device and hydraulic control unit shell, clutch housing
Assembling means compare, sealing device of the present invention and hydraulic control unit shell, clutch housing assembling means be very easy to
Implement, and plastic sealing technology will not be used, thus the problem of there is no seal failures.
Detailed description of the invention
Fig. 1 is a kind of partial structural diagram of existing double clutch gearboxes；
Fig. 2 is the partial structurtes stereogram exploded view of double clutch gearbox in one embodiment of the present of invention；
Fig. 3 is double clutch gearboxes shown in Fig. 2 in the assembled condition along the partial cutaway view in the first section；
Fig. 4 is the three-dimensional structure diagram of sealing device in double clutch gearbox shown in Fig. 2；
Fig. 5 is the stereogram exploded view of sealing device shown in Fig. 4；
Fig. 6 be in double clutch gearboxes shown in Fig. 2 sealing device be not assembled together with clutch housing but with it is hydraulic
Control unit shell be assembled together in the state of along the second section partial cutaway view, first section and the second section are hung down
Directly.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
In conjunction with shown in Fig. 2 to Fig. 3, double clutch gearboxes of the present embodiment include the hydraulic control list equipped with the first oil duct 10
First shell 11, clutch housing 13 and sealing device 20 equipped with the second oil duct 12.First oil duct 10 and the second oil duct 12 are logical
The connection of sealing device 20 is crossed, enables hydraulic oil to flow to the second oil duct 12 from the first oil duct 10, to control the clutch of clutch.With
This simultaneously, the inner wall of sealing device 20 and the first oil duct 10, the second oil duct 12 is interference fitted to seal, and prevents hydraulic oil
It is leaked between sealing device 20 and the first oil duct 10, between sealing device 20 and the second oil duct 12.
In conjunction with shown in Fig. 3 to Fig. 5, sealing device 20 includes shell 21 and valve rod 22.Shell 21 have along axially through
Hollow hole 210, the first groove 211, the second groove 212 are located on the outer wall of 21 axial ends of shell, and along shell 21
Radial depressions.It is equipped with the first sealing ring 23 in first groove 211, is equipped with the second sealing ring 24 in the second groove 212.Valve rod 22
It is movably located in hollow hole 210, and there are spaced radials between valve rod 22 and the hole wall of hollow hole 210.First sealing ring
23 and second the material of sealing ring 24 be rubber, in other embodiments, the first sealing ring 23 and the second sealing ring 24 can also be with
It is made using the material that can be sealed.
Sealing device 20 is located at the first oil duct 10 along axial both ends, in the second oil duct 12, and the axial direction of shell 21
Both ends are the inner wall of the first sealing ring 23 and the first oil duct 10, first recessed respectively with the first oil duct 10,12 clearance fit of the second oil duct
The bottom wall (in shell 21 radially towards the first sealing ring 23) of slot 211 is interference fitted, the second sealing ring 24 and the second oil
The inner wall in road 12, the second groove 212 are interference fitted (in shell 21 radially towards the second sealing ring 24), hydraulic to prevent
Oil between the first sealing ring 23 and the inner wall of the first oil duct 10, between the first sealing ring 23 and the first groove 211, second sealing
It is leaked between circle 24 and the inner wall of the second oil duct 12, between the second sealing ring 24 and the second groove 212.In 23 He of the first sealing ring
Under the sealing function of second sealing ring 24, the hydraulic oil in the first oil duct 10 is only capable of the hole wall via valve rod 22 and hollow hole 210
Between spaced radial flow to the second oil duct 12.
Sealing device 20 further includes the elastic component 25 in hollow hole 210, and elastic component 25 is in compressive state along shell
21 it is axial clamp valve rod 22, hollow hole 210 hole wall between so that valve rod 22 will receive the application of elastic component 25 from hydraulic control
Unit housings 11 processed are directed toward the axial force of clutch housing 13, shell 21 will receive the application of elastic component 25 from bell housing
The axial force of the direction hydraulic control unit shell 11 of body 13.
As shown in figure 3, in the present embodiment, elastic component 25 is axially clamped in valve rod along shell 21 by following manner
22, between the hole wall of hollow hole 210: it (can be that annular can also that the boss that one radially extends along shell 21 is arranged on valve rod 22
Think other than ring type), which has in the side 220 of 22 axis of valve rod elastic component 25 facing upwards, on the hole wall of hollow hole 210
One boss (can for annular or other than ring type) radially extended is set, the boss have 22 axis of valve rod facing upwards
The side 214 of elastic component 25, the both ends of elastic component 25 are resisted against the side 214 of the side 220 of boss, boss respectively in axial direction
On.In the alternative of the present embodiment, elastic component 25 axially can also be clamped in valve rod along shell 21 by other means
22, between the hole wall of hollow hole 210.
In the present embodiment, elastic component 25 is helical spring.In the alternative of the present embodiment, elastic component 25 may be
Other kinds of spring (such as leaf spring) or other components made of elastic material (such as rubber) etc..
In the present embodiment, realize the axial ends of shell 21 along two opposite axial directions point by following manner
It is not resisted against hydraulic control unit shell 11, on clutch housing 13, to prevent sealing device 20 and hydraulic control unit shell
11 and clutch housing 13 assemble after can shake in the axial direction: the annular radially extended is set on the outer wall of shell 21 and is turned over
Side 213, annular flange 213 are located axially between the first groove 211 and the second groove 212 in shell 21, annular 213 edge of flange
The axial direction of hydraulic control unit shell 11 is directed toward against hydraulic control unit shell 11 from clutch housing 13, that is, shell
21 will receive the axial direction that clutch housing 13 is directed toward from hydraulic control unit shell 11 applied by hydraulic control unit shell 11
Active force, according to it is noted earlier it is found that shell 21 also suffer from elastic component 25 application be directed toward hydraulic control from clutch housing 13
The axial force of unit housings 11 processed can be realized axial the two of shell 21 under the opposite axial force of the both direction
End is born against on hydraulic control unit shell 11, clutch housing 13 along two opposite axial directions, so that shell 21
It is clamped between hydraulic control unit shell 11, clutch housing 13 in the axial direction.
In the alternative of the present embodiment, the axial ends of shell 21 can also be realized along two phases by other means
Anti- axial direction is born against on hydraulic control unit shell 11, clutch housing 13, such as: in the first oil duct 10
The boss (can be annular or other than ring type) that setting one radially extends on wall, the boss is outer with being facing axially in
The side 100 of shell 21, side 100 of the axial one end for being located at shell 21 in first oil duct 10 axially against boss, shell
21 will receive the axial work that clutch housing 13 is directed toward from hydraulic control unit shell 11 of the application of hydraulic control unit shell 11
Firmly, according to it is noted earlier it is found that shell 21 also suffer from elastic component 25 application from clutch housing 13 be directed toward hydraulic control
The axial force of unit housings 11 can be realized the axial ends of shell 21 under the opposite axial force of the both direction
The axial direction opposite along two is born against on hydraulic control unit shell 11, clutch housing 13, so that shell 21 exists
It is clamped between hydraulic control unit shell 11, clutch housing 13 in axial direction.
In the present embodiment, the inner wall of the second oil duct 12 is equipped with a boss radially extended, which has in axial direction
On the side wall 120 towards valve rod 22, plateau sidewall 120 contacts with the end of valve rod 22, and applies one from clutch to valve rod 22
Shell 13 is directed toward the axial force of hydraulic control unit shell 11, with elastic component 25 apply from hydraulic control unit shell
11 are directed toward under the collective effect of the axial force of clutch housing 13, and stress keeps balance to valve rod 22 in the axial direction.
When sealing device 20 and hydraulic control unit shell 11, clutch housing 13 are assembled together, firstly, by close
Axial one end of seal apparatus 20 is filled in the first oil duct 10, until sealing device 20 is because of the blocking by hydraulic control unit shell 11
And stop being sent into, i.e., the annular flange 213 of shell 21 offsets with hydraulic control unit shell 11.Then, by sealing device 20
The axial other end is filled in the second oil duct 12, until sealing device 20 stops being sent into due to by the blocking of clutch housing 13, i.e.,
The end of valve rod 22 and the side 120 of the boss of the second oil duct 12 offset.With existing sealing device and hydraulic control unit shell,
The assembling means of clutch housing are compared, the assembly hand of sealing device of the present invention and hydraulic control unit shell, clutch housing
The problem of section is very easy to implement, and will not use plastic sealing technology, thus there is no seal failures.
In conjunction with shown in Fig. 3 and Fig. 5, in the present embodiment, axial one end of valve rod 22 is equipped with third groove (not identifying), institute
Third groove is stated along 22 radial depressions of valve rod.It is equipped with third sealing ring 26 in the third groove, third sealing ring 26 is located at the
In one oil duct 10 and stretch out except hollow hole 210.Hollow hole 210 includes one section of truncated cones hole 215 for being located at axial end portion, is cut
Tip circle taper hole 215 is located in the first oil duct 10.The material of third sealing ring 26 is rubber, in other embodiments, third sealing
Circle 26 also can use the material that can be sealed and be made.
It, will be close when hydraulic control unit shell 11 and clutch housing 13 are split next in conjunction with shown in Fig. 3 and Fig. 6
Seal apparatus 20 is located at the pull-out of axial one end in the second oil duct 12, and sealing device 20 is located at the guarantor of axial one end in the first oil duct 10
It stays in the first oil duct 10, as shown in Figure 6.It is torn open from clutch housing 13 in hydraulic control unit shell 11 and sealing device 20
After unloading down, what valve rod 22 was no longer influenced by the application of clutch 13 is directed toward hydraulic control unit shell 11 from clutch housing 13
Axial force, the meeting recovered part deformation of elastic component 25, under the restoring force effect of elastic component 25, the meeting of valve rod 22 edge is gradually stretched out
The direction of first oil duct 10 is mobile, until third sealing ring 26 is along towards elastic component 25 under the residual deformation effect of elastic component 25
Direction against the hole wall in truncated cones hole 215, so, the hydraulic oil in hydraulic control unit shell 11 will not be via
Between three sealing rings 26 and hollow hole 210, between the first sealing ring 23 and the hole wall of the first oil duct 10, the first sealing ring 23 and
It is leaked between one groove 211.
As shown in figure 3, in the alternative of the present embodiment, in sealing device 20 can also without valve rod 22, elastic component 25,
Third sealing ring 26.In this case: passing through the bottom of the inner wall and the first groove 211 of the first sealing ring 23 and the first oil duct 10
The bottom wall of wall interference fit, the inner wall of the second sealing ring 24 and the second oil duct 12 and the second groove 212 is interference fitted, and is still able to achieve
The sealing of hydraulic oil, i.e. prevention hydraulic oil between the first sealing ring 23 and the inner wall of the first oil duct 10, the first sealing ring 23 with
Between first groove 211, between the second sealing ring 24 and the inner wall of the second oil duct 12, the second sealing ring 24 and the second groove 212
Between leak, the hydraulic oil in the first oil duct 10 flows to the second oil duct 12 via hollow hole 210；Also, it still can solve existing skill
Art sealing device and hydraulic control unit shell, clutch housing assembling means are not easy to implement and seal vulnerable problem, have
Body is analyzed as follows:
When sealing device 20 and hydraulic control unit shell 11, clutch housing 13 are assembled together, firstly, by close
Axial one end of seal apparatus 20 is filled in the first oil duct 10, until sealing device 20 is because of the blocking by hydraulic control unit shell 11
And stop being sent into.Then, the axial other end of sealing device 20 is filled in the second oil duct 12, until sealing device 20 because by from
The blocking of clutch shell 13 and stop being sent into.Do not use plastic sealing technology yet in assembling process.
It, can be with continued reference to shown in Fig. 3 when there is no valve rod 22, elastic component 25, third sealing ring 26 in sealing device 20
The side 120 of axial one end and boss for being located at shell 21 in second oil duct 12 is axial to offset, and is also able to achieve shell 21 in this way
Axial ends born against on hydraulic control unit shell 11, clutch housing 13 along two opposite axial directions.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (9)
1. a kind of double clutch gearboxes characterized by comprising
Hydraulic control unit shell equipped with the first oil duct；
Clutch housing equipped with the second oil duct；
Sealing device is located in first and second oil duct along axial both ends, and includes:
Shell, have along axially through hollow hole, the hollow hole is connected to the first and second oil duct, the axial direction two of the shell
End is born against on hydraulic control unit shell, clutch housing along two opposite axial directions；
The first and second groove being located on the outer wall of the shell axial ends, radial direction of first and second groove along shell
Recess；
The inner wall of the first sealing ring in first groove, first sealing ring and the first oil duct, the first groove
Bottom wall is interference fitted；
The inner wall of the second sealing ring in second groove, second sealing ring and the second oil duct, the second groove
Bottom wall is interference fitted；
The valve rod being movably located in the hollow hole, there are spaced radials between the valve rod and the hole wall of hollow hole；
Elastic component in the hollow hole, the elastic component in compressive state are axially clamped along shell in valve rod, hollow
Between the hole wall in hole.
2. double clutch gearboxes as described in claim 1, which is characterized in that the sealing device further include: be located at the valve
The third groove of bar axial direction one end, the third groove is along valve rod radial depressions；Third sealing in the third groove
Circle, the third sealing ring are located in the first oil duct and stretch out except hollow hole；
The hollow hole includes one section of truncated cones hole for being located at axial end portion, and the truncated cones hole is located in the first oil duct；
In the shape that the sealing device is not assembled together with clutch housing but is assembled together with hydraulic control unit shell
Under state, the third sealing ring edge is towards the direction of elastic component against the hole wall in the truncated cones hole.
3. double clutch gearboxes as described in claim 1, which is characterized in that the elastic component is spring.
4. double clutch gearboxes as described in claim 1, which is characterized in that the inner wall of second oil duct is equipped with radially
The boss of extension, the side of the boss is along the axial direction from clutch housing direction hydraulic control unit shell against valve rod
End.
5. double clutch gearboxes as described in claim 1, which is characterized in that the outer wall of the shell is equipped with and radially extends
Annular flange, it is described annular flange along from clutch housing be directed toward hydraulic control unit shell axial direction against hydraulic control
Unit housings processed.
6. a kind of sealing device for double clutch gearboxes, which is characterized in that double clutch gearboxes include being equipped with first
The hydraulic control unit shell of oil duct and clutch housing equipped with the second oil duct, the sealing device are used for along axial both ends
It is separately positioned in first and second oil duct；
The sealing device includes:
Shell, have along axially through hollow hole, the hollow hole with the first and second oil duct for being connected to, the axis of the shell
It is used to bear against along two opposite axial directions in hydraulic control unit shell, clutch housing to both ends；
The first and second groove being located on the outer wall of the shell axial ends, radial direction of first and second groove along shell
Recess；
The bottom wall of the first sealing ring in first groove, first sealing ring and the first groove is interference fitted, and
For being interference fitted with the inner wall of the first oil duct；
The bottom wall of the second sealing ring in second groove, second sealing ring and the second groove is interference fitted, and
For being interference fitted with the inner wall of the second oil duct；
The valve rod being movably located in the hollow hole, there are spaced radials between the valve rod and the hole wall of hollow hole；
Elastic component in the hollow hole, the elastic component in compressive state are axially clamped along shell in valve rod, hollow
Between the hole wall in hole.
7. sealing device as claimed in claim 6, which is characterized in that further include: the third positioned at valve rod axial direction one end
Groove, the third groove is along valve rod radial depressions；Third sealing ring in the third groove, the third sealing ring
It stretches out except hollow hole and for being arranged in the first oil duct；
The hollow hole includes one section of truncated cones hole for being located at axial end portion, and the third sealing ring is along towards the side of elastic component
To the hole wall against the truncated cones hole.
8. sealing device as claimed in claim 6, which is characterized in that the elastic component is spring.
9. sealing device as claimed in claim 6, which is characterized in that the outer wall of the shell is equipped with the ring radially extended
Shape flange, the annular flange are used for along the axial direction from clutch housing direction hydraulic control unit shell against hydraulic control
Unit housings processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535368.2A CN106481786B (en) | 2015-08-27 | 2015-08-27 | Double clutch gearboxes and its sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535368.2A CN106481786B (en) | 2015-08-27 | 2015-08-27 | Double clutch gearboxes and its sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481786A CN106481786A (en) | 2017-03-08 |
| CN106481786B true CN106481786B (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510535368.2A Active CN106481786B (en) | 2015-08-27 | 2015-08-27 | Double clutch gearboxes and its sealing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102017222663B4 (en) * | 2017-12-13 | 2022-07-14 | Magna powertrain gmbh & co kg | Transmission and method of assembling such a transmission |
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| CN1596353A (en) * | 2001-11-28 | 2005-03-16 | 弗利亚特克公司 | Plug-in connector |
| CN201206686Y (en) * | 2008-05-10 | 2009-03-11 | 周纪昌 | Conical rubber seal type male and female quick joint |
| CN102121547A (en) * | 2010-12-23 | 2011-07-13 | 拉卡萨安吉拉股份有限公司 | Bushing for pipe joint and pipe joint adopting bushing |
| CN104870878A (en) * | 2013-01-02 | 2015-08-26 | Abb技术有限公司 | Hydraulic connecting bush, hydraulic connection, and hydraulic plug |
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