CN208442098U - A kind of shift air valve - Google Patents
A kind of shift air valve Download PDFInfo
- Publication number
- CN208442098U CN208442098U CN201820379343.7U CN201820379343U CN208442098U CN 208442098 U CN208442098 U CN 208442098U CN 201820379343 U CN201820379343 U CN 201820379343U CN 208442098 U CN208442098 U CN 208442098U
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- China
- Prior art keywords
- valve body
- spool
- upper cover
- mandril
- sealing ring
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Abstract
The utility model discloses a kind of shift air valve, belong to transmission technology field, including valve body, upper cover, mandril and spool, upper cover is connected with valve body, upper cover and valve body are hollow structure, mandril is mounted in the hollow structure of upper cover, spool is connected with mandril, spool is mounted in the hollow structure of valve body, bushing is provided between mandril and upper cover, sealing ring mounting groove and boss are provided on the inner wall of upper cover hollow structure, first sealing ring is installed in sealing ring mounting groove, boss is used to limit the position of bushing, gland is provided between valve body and spool, gland is located at one end of valve body and upper cover contact, one end that gland is located at valve inner is provided with the second sealing ring and spacer.By the use of gland the second sealing ring and spacer, solves the problem of prior art support span is larger, and spool is prone to wear, and odd-side is caused to be unable to normal conversion, synchronizer damage or even FCL failure.
Description
Technical field
The utility model relates to transmission technology field, specially a kind of shift air valve.
Background technique
With the increasingly internationalization of product, user is also higher and higher to requirements such as quality, the performances of gearbox.Speed changer exists
Odd-side switching is mainly controlled by shift air valve when shift.
Current existing gearbox often will appear the case where odd-side cannot switch, synchronizer damages in use,
It is found through investigation, main cause is that shift air valve internal structure is unreasonable, so that clamping stagnation occurs in shift air valve, causes odd-side cannot
Normal conversion, synchronizer damage even FCL failure.
Utility model content
Aiming at the problems existing in the prior art, the utility model provides a kind of shift air valve, solves in shift air valve
The problem of portion's clamping stagnation.
The utility model is to be achieved through the following technical solutions:
A kind of shift air valve, including valve body, upper cover, mandril and spool, the upper cover are connected with valve body, and upper cover and valve body are equal
For hollow structure, mandril is mounted in the hollow structure of upper cover, and spool is connected with mandril, and spool is mounted on the hollow structure of valve body
It is interior, it is provided with bushing between mandril and upper cover, sealing ring mounting groove and boss are provided on the inner wall of upper cover hollow structure, it is described
First sealing ring is installed, boss is used to limit the position of bushing, pressure is provided between valve body and spool in sealing ring mounting groove
Lid, gland are located at one end of valve body and upper cover contact, and one end that gland is located at valve inner is provided with the second sealing ring and spacer.
Optionally, the bushing is sliding bearing.
Optionally, one end of the spool and ejector pin contact, the other end are equipped with reset spring, and the reset spring is used for
Spool and mandril are resetted.
Optionally, the hollow structure of the upper cover and valve body is centre bore, and mandril is mounted in upper cover
In heart hole, spool is mounted in the centre bore of valve body, and mandril and spool can slide in the axial direction.
Optionally, it is provided with air inlet and gas vent on the valve body, gas channel was provided on the spool, mandril pushes away
Movable valve plug air inlet pass through gas channel with gas vent to be connected to.
Optionally, the two sides that gas channel is crossed on the spool are provided with sealing ring, and the sealing ring is for preventing gas from letting out
Leakage.
Optionally, the valve body and the other end of upper cover connecting pin are provided with end cap.
Optionally, one end of the gland is provided with flange, and the flange is stuck in the end face of valve body.
Compared with prior art, the utility model has technical effect beneficial below:
The utility model discloses a kind of shift air valve, including valve body, upper cover, mandril and spool, upper cover are connected with valve body, on
Lid and valve body are hollow structure, and mandril is mounted in the hollow structure of upper cover, and spool is connected with mandril, and spool is mounted on valve body
Hollow structure in, bushing is provided between mandril and upper cover, is provided with sealing ring mounting groove on the inner wall of upper cover hollow structure
And boss, the first sealing ring is installed, boss is used to limit the position of bushing, sets between valve body and spool in sealing ring mounting groove
It is equipped with gland, gland is located at one end of valve body and upper cover contact, and one end that gland is located at valve inner is provided with the second sealing ring
And spacer.By the use of gland, the second sealing ring and spacer, solves the prior art and support span larger, spool is easy mill
Damage leads to the problem of odd-side is unable to normal conversion, synchronizer damages or even FCL failure.
Further, by the way that sliding bearing is arranged between mandril and upper cover, friction is reduced, service life is increased.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of air valve of shifting gears provided by the embodiment of the utility model.
In figure: 1. mandrils, 2. upper covers, 3. spools, 4. second sealing rings, 5. spacers, 6. end caps, 7. reset springs, 8. valves
Body, 9. glands, 11. first sealing rings, 12. bushings.
Specific embodiment
The utility model is described in further detail below with reference to specific embodiment, described is to the utility model
Explanation rather than limit.
Embodiment one
As shown in Figure 1, a kind of shift air valve, including valve body 8, upper cover 2, mandril 1 and spool 3, the upper cover 2 and valve body 8
Connection, upper cover 2 and valve body 8 are hollow structure, and mandril 1 is mounted in the hollow structure of upper cover 2, and spool 3 and mandril 1 connect,
Spool 3 is mounted in the hollow structure of valve body 8, and bushing 12, the inner wall of 2 hollow structure of upper cover are provided between mandril 1 and upper cover 2
On be provided with sealing ring mounting groove and boss, the first sealing ring 11 is installed, boss is for limiting in the sealing ring mounting groove
The position of bushing 12 is provided with gland 9, one end that gland 9 is located at valve body 8 and upper cover 2 contacts, gland between valve body 8 and spool 3
9 one end for being located inside valve body 8 are provided with the second sealing ring 4 and spacer 5.
One end of spool 3 and mandril 1 contact, and the other end is equipped with reset spring 7, and the reset spring 7 is used for spool
3 and mandril 1 reset.The hollow structure of upper cover 2 and valve body 8 is centre bore, and mandril 1 is mounted in the centre bore of upper cover 2, spool
3 are mounted in the centre bore of valve body 8, and mandril 1 and spool 3 can slide in the axial direction.
It is provided with air inlet and gas vent on valve body 8, gas channel was provided on the spool 3, mandril 1 pushes spool 3
It is connected to so that air inlet passed through gas channel with gas vent.
The two sides that gas channel is crossed on spool 3 are provided with sealing ring, and the sealing ring is for preventing gas from leaking.8 He of valve body
The other end of 2 connecting pin of upper cover is provided with end cap 6.One end of gland 9 is provided with flange, and the flange is stuck in the end face of valve body 8.
By the use of gland, the second sealing ring and spacer, solves the prior art and support span larger, spool is easy mill
Damage leads to the problem of odd-side is unable to normal conversion, synchronizer damages or even FCL failure.By being arranged between mandril and upper cover
Sliding bearing reduces friction, increases service life.
Embodiment two
As shown in Figure 1, a kind of shift air valve, including valve body 8, upper cover 2, mandril 1 and spool 3, the upper cover 2 and valve body 8
Connection, upper cover 2 and valve body 8 are hollow structure, and mandril 1 is mounted in the hollow structure of upper cover 2, and spool 3 and mandril 1 connect,
Spool 3 is mounted in the hollow structure of valve body 8, and bushing 12, the inner wall of 2 hollow structure of upper cover are provided between mandril 1 and upper cover 2
On be provided with sealing ring mounting groove and boss, the first sealing ring 11 is installed, boss is for limiting in the sealing ring mounting groove
The position of bushing 12 is provided with gland 9, one end that gland 9 is located at valve body 8 and upper cover 2 contacts, gland between valve body 8 and spool 3
9 one end for being located inside valve body 8 are provided with the second sealing ring 4 and spacer 5.
Wherein, bushing 12 is sliding bearing, a large amount of on AT gearbox to reduce the friction between mandril 1 and bushing 12
It uses.
One end of spool 3 and mandril 1 contact, and the other end is equipped with reset spring 7, and the reset spring 7 is used for spool
3 and mandril 1 reset.The hollow structure of upper cover 2 and valve body 8 is centre bore, and mandril 1 is mounted in the centre bore of upper cover 2, spool
3 are mounted in the centre bore of valve body 8, and mandril 1 and spool 3 can slide in the axial direction.
It is provided with air inlet and gas vent on valve body 8, gas channel was provided on the spool 3, mandril 1 pushes spool 3
It is connected to so that air inlet passed through gas channel with gas vent.
The two sides that gas channel is crossed on spool 3 are provided with sealing ring, and the sealing ring is for preventing gas from leaking.8 He of valve body
The other end of 2 connecting pin of upper cover is provided with end cap 6.One end of gland 9 is provided with flange, and the flange is stuck in the end face of valve body 8.
By the use of gland, the second sealing ring and spacer, solves the prior art and support span larger, spool is easy mill
Damage leads to the problem of odd-side is unable to normal conversion, synchronizer damages or even FCL failure.By being arranged between mandril and upper cover
Sliding bearing reduces friction, increases service life.
In order to prevent between gland 9 and spool 3 abrasion and high pressure gas leakage, provided by the embodiment of the utility model one
Kind shift air valve, 9 size of gland is reduced, and is changed to POM by aluminium alloy, reduces the friction that gland 9 generates spool 3, simultaneously
Increase spacer 5 and sealing ring, guarantees that high pressure gas will not leak between upper cover 2 and valve body 87.By designing above, so that product
Fatigue life improves 100,000 times than before, solves the problems, such as that odd-side caused by air valve clamping stagnation is not converted, synchronizer damages, and 400,000
The trouble-free requirement of kilometer.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of shift air valve, which is characterized in that including valve body (8), upper cover (2), mandril (1) and spool (3), the upper cover
(2) it is connected with valve body (8), upper cover (2) and valve body (8) are hollow structure, and mandril (1) is mounted on the hollow structure of upper cover (2)
Interior, spool (3) and mandril (1) connection, spool (3) is mounted in the hollow structure of valve body (8), between mandril (1) and upper cover (2)
It is provided with bushing (12), sealing ring mounting groove and boss, the sealing ring installation is provided on the inner wall of upper cover (2) hollow structure
It is equipped in slot the first sealing ring (11), boss is used to limit the position of bushing (12), is arranged between valve body (8) and spool (3)
Have gland (9), gland (9) is located at one end of valve body (8) and upper cover (2) contact, and gland (9) is located at the internal one end of valve body (8)
It is provided with the second sealing ring (4) and spacer (5).
2. a kind of shift air valve as described in claim 1, which is characterized in that the bushing (12) is sliding bearing.
3. a kind of shift air valve as described in claim 1, which is characterized in that one end of the spool (3) and mandril (1) connect
Touching, the other end are equipped with reset spring (7), and the reset spring (7) is used to reset spool (3) and mandril (1).
4. a kind of shift air valve as claimed in claim 3, which is characterized in that the hollow structure of the upper cover (2) and valve body (8)
It is centre bore, mandril (1) is mounted in the centre bore of upper cover (2), and spool (3) is mounted in the centre bore of valve body (8), mandril
(1) it can be slided in the axial direction with spool (3).
5. a kind of shift air valve as described in claim 1, which is characterized in that be provided with air inlet and row on the valve body (8)
Stomata, gas channel was provided on the spool (3), and mandril (1) pushes spool (3) that air inlet and gas vent is made to pass through gas
Channel connection.
6. a kind of shift air valve as claimed in claim 5, which is characterized in that on the spool (3) the two sides in gas channel set
It is equipped with sealing ring, the sealing ring is for preventing gas from leaking.
7. a kind of shift air valve as described in claim 1, which is characterized in that the valve body (8) and upper cover (2) connecting pin it is another
One end is provided with end cap (6).
8. a kind of shift air valve as described in claim 1, which is characterized in that one end of the gland (9) is provided with flange, institute
State the end face that flange is stuck in valve body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379343.7U CN208442098U (en) | 2018-03-20 | 2018-03-20 | A kind of shift air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379343.7U CN208442098U (en) | 2018-03-20 | 2018-03-20 | A kind of shift air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208442098U true CN208442098U (en) | 2019-01-29 |
Family
ID=65092814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820379343.7U Active CN208442098U (en) | 2018-03-20 | 2018-03-20 | A kind of shift air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208442098U (en) |
-
2018
- 2018-03-20 CN CN201820379343.7U patent/CN208442098U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |