CN203585425U - Single-slide bar reversing relay valve - Google Patents
Single-slide bar reversing relay valve Download PDFInfo
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- CN203585425U CN203585425U CN201320789011.3U CN201320789011U CN203585425U CN 203585425 U CN203585425 U CN 203585425U CN 201320789011 U CN201320789011 U CN 201320789011U CN 203585425 U CN203585425 U CN 203585425U
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- slide bar
- shaped ring
- valve body
- relay valve
- air pressure
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Abstract
The utility model relates to a single-slide bar reversing relay valve, which comprises a valve body, a piston and a slide bar. An inner cavity is formed in the valve body; the slide bar does back and forth movement along the inner cavity of the valve body; the bottom end of the slide bar is inserted into a location hole in the valve body; the piston is sheathed on the top end of the slide bar; both ends of a return flexible assembly respectively abut to the bottom end of the inner cavity of the valve body and the slide bar; Y-shaped rings and support rings are sheathed on the exterior of the slide bar; the slide bar does the back and forth movement along a first position and a second position in the inner cavity of the valve body. According to the single-slide bar reversing relay valve adopting the structure, an original O-shaped ring seal structure is changed into a Y-shaped ring seal structure, and therefore the risks of air leakage and clamping stagnation caused by possible damage during the sliding process of a piston O-shaped ring by adopting a traditional relay valve are fundamentality avoided, and further, the reliability of shifting execution of a complete vehicle is improved. The size and the position dimension of the installed location hole of the valve body are completely consistent with those of an original relay valve. During the assembling process of a transmission assembly, the original relay valve can be directly replaced without interference to a transmission body.
Description
Technical field
The utility model relates to technical field of automobile parts, and particularly powertrain system of automobile component technical field, specifically refers to a kind of single slide bar commutation relay valve.
Background technique
At present, the heavy gearbox of commercial vehicle is controlled the relay valve that half gear air cylinder piston moves, and generally adopts O type circle sealing configuration (as shown in Figure 1, 2), comprises valve body 33, end cap 34, return spring 35, sliding piston 42.In valve body 33, there is inner chamber, on valve body 33, be provided with suction port 36, relief opening 37, the first air pressure delivery outlet 38, the second air pressure delivery outlet 39 and control mouth 40.Spring positioning seat 43 is provided with through hole and makes body cavity communicate with ambient atmosphere (due to the relation that position and this sectional view of vent has certain distance, vent inconvenience embodies in this sectional view).
The working principle of this valve is the pressurized air that suction port 36 passes into certain air pressure, by control, enter the change of controlling the air pressure in mouth 40, piston 42 is horizontally slipped at the inwall of lining 41, and then realize suction port 36 can be respectively to delivery outlet 38 or delivery outlet 39 air feed, make delivery outlet 39 or the logical atmosphere of delivery outlet 38 simultaneously.
After valve work a period of time, the lubrication that piston the one O type circle 44 and the 2nd O type circle 45 and lining are 41 may lose efficacy, after there is lubrication failure, at piston 42, horizontally slip in process, because gas pressure piston the one O type circle 44 and the 2nd O type circle 45 may be clamp-oned in the left and right channel orifices of lining 41 parts, and hurt by the aperture of channel orifices, then produce the failure mode of valve assembly gas leakage.And then cause gearbox to shift gears and can not normally travel.
On lining 41, have as three of gas-entered passageway and come aperture uniform on circumference, because lining 41 walls are thinner and inside and outside wall is smooth, aperture difficulty of processing is larger, it is very big that particularly the aperture aperture burr on lining 41 inner hole walls is removed difficulty, because inner aperture aperture whether smooth direct working life that affects piston the one O type circle 44 and the 2nd O type circle 45.Therefore, need to provide a kind of parts machining process good, reliability is high, long service life, the relay valve of durability brilliance.
Model utility content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provides a kind of and is convenient to that assembling, simple for structure, physical life are long, single slide bar commutation relay valve of good endurance.
For realizing above-mentioned object, single slide bar of the present utility model commutates relay valve by the following technical solutions:
This list slide bar commutation relay valve, its main feature is, comprise valve body, piston and slide bar, in this valve body, there is inner chamber, described slide bar is movably set in the inner chamber of this valve body, this slide bar comes and goes mobile along the inner chamber of described valve body, the bottom of described slide bar is inserted in the positioning hole in described valve body, described piston sleeve is located at the top of this slide bar, return elastic member is positioned at the bottom of the inner chamber of described valve body, the two ends of this return elastic member are respectively against the bottom of the inner chamber of described valve body and described slide bar, Y-shaped ring and support ring are sheathed on outside described slide bar.
One side of the valve body in this list slide bar commutation relay valve is provided with suction port, first row gas port and second row gas port, and the opposite side of described valve body is provided with the first air pressure delivery outlet and the second air pressure delivery outlet.
Slide bar in this list slide bar commutation relay valve comes and goes mobile along primary importance and the second place in the inner chamber of described valve body; While being positioned at described primary importance, described suction port is connected with the second described air pressure delivery outlet, and the first described air pressure delivery outlet is connected and is communicated with atmosphere with described first row gas port; While being positioned at the described second place, described suction port is connected with the first described air pressure delivery outlet, and the second described air pressure delivery outlet and described second row gas port are connected and are communicated with atmosphere.
Y-shaped ring in this list slide bar commutation relay valve and described support ring interval arrange, and the both ends of the surface of described Y-shaped ring are closely against two adjacent support rings.
End cap fixed cover in this list slide bar commutation relay valve is located at the top of described valve body, and described piston comes and goes mobile in described end cap.
The quantity of the Y-shaped ring in this list slide bar commutation relay valve is 4, the quantity of described support ring is 5, described Y-shaped ring is followed successively by the first Y-shaped ring, the second Y-shaped ring, the 3rd Y-shaped ring and the 4th Y-shaped ring along bottom to the top of described valve body, the first described Y-shaped ring and the second described Y-shaped ring lay respectively at the both sides of the first described air pressure delivery outlet, the 3rd described Y-shaped ring and the 4th described Y-shaped ring lay respectively at the both sides of the second described air pressure delivery outlet, and the second described Y-shaped ring and the 3rd described Y-shaped ring lay respectively at the both sides of described suction port.
Slide bar in this list slide bar commutation relay valve have the rear thin portion connecting successively along top to bottom, rear thick portion, in thin portion, in thick portion, front thin portion and front thick portion; Be positioned at described primary importance, described rear thick portion and described in thick portion be tightly connected with the inner lip of described Y-shaped ring respectively, described in the inner lip of thin portion and described front thin portion and described Y-shaped ring be separated.Described rear thick portion and described in thick portion contact sealing with described Y-shaped ring inner lip respectively, described rear thin portion and described in carefully portion and the disengaging of Y-shaped ring inner lip.
Return elastic member in this list slide bar commutation relay valve is spring.
First row gas port in this list slide bar commutation relay valve and described second row gas port are provided with dustproof sheet and dust cap.
The stroke of the slide bar in this list slide bar commutation relay valve is less than or equal to 9mm.
Adopt single slide bar commutation relay valve of this structure, by structure, changed, by original O type circle sealing, changed sealing means into present Y-shaped ring sealing configuration mode.Can not only meet the functional requirement of original relay valve simultaneously, and existing relay valve is evaded because the possible damage in piston O type circle sliding process causes gas leakage in essence ground, the risk that clamping stagnation etc. may lose efficacy, and then improve the reliability that car load speed-change and gearshift is carried out; And adopt the more original O type coil structures of Y-shaped ring sealing configuration to extend working life, not only improve the reliability of product, due to design of part simple shape, dimensioned precision is more convenient for guaranteeing, technology capability is good, assembly structure is simply convenient to assembling, assembly process process is good, and mounting-positioning holes size and location size and the former relay valve of valve body are in full accord, can directly replace original-pack relay valve and can not interfere with gear box in transmission assembly assembly process.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of relay valve piston in primary importance that the heavy gearbox of existing commercial vehicle is controlled half grade of air inlet shift.
Fig. 2 is the cross-sectional schematic of the relay valve piston shown in Fig. 1 in the second place.
Fig. 3 is the cross-sectional schematic of slide bar of the present utility model in primary importance.
Fig. 4 is the cross-sectional schematic of the slide bar shown in Fig. 3 in the second place.
Embodiment
In order more clearly to understand technology contents of the present utility model, especially exemplified by following examples, describe in detail.
Refer to Fig. 3 and Fig. 4, single slide bar-type commutation relay valve comprises valve body 1, end cap 2, piston 3, piston packing 4, slide bar 5 and return elastic member 13, in valve body 1, there is inner chamber, slide bar 5 is movably set in the inner chamber of this valve body 1, this slide bar 5 comes and goes mobile along the inner chamber of valve body 1, slide bar 5 comes and goes mobile along primary importance and the second place in the inner chamber of valve body 1, the bottom of slide bar 5 is inserted in the positioning hole 31 in valve body 1, piston 3 is sheathed on the top of this slide bar 5, return elastic member 13 is positioned at the bottom of the inner chamber of valve body 1, the two ends of this return elastic member 13 are respectively against the bottom of inner chamber of valve body 1 and the bottom of the positioning hole 32 of slide bar 5, Y-shaped ring and support ring are sheathed on outside slide bar, end cap 2 fixed covers are located at the top of valve body 1, piston 3 is in the interior round movement of end cap 2.
One side of valve body 1 is provided with suction port 9, first row gas port 12 and second row gas port 8, the opposite side of valve body 1 is provided with the first air pressure delivery outlet 20 and the second air pressure delivery outlet 25, dustproof sheet 10 and dust cap 11 are equipped with in first row gas port 12 places, and dustproof sheet 6 and dust cap 7 are equipped with in second row gas port 8 places.
The first Y-shaped ring 17 outer lips are towards the aperture of valve body 1, the second Y-shaped ring 21 is between the second support ring 18 and three-support ring 22 and respectively against the second support ring 18 and three-support ring 22, the second Y-shaped ring 21 outer lips are also towards the aperture of valve body 1, the 3rd Y-shaped ring 24 is between three-support ring 22 and the 4th support ring 26 and respectively against three-support ring 22 and the 4th support ring 26, the 3rd Y-shaped ring 24 outer lips are the aperture of valve body 1 dorsad, the 4th Y-shaped ring 27 is between the 4th support ring 26 and the 5th support ring 29 and respectively against the 4th support ring 26 and the 5th support ring 29, the 4th Y-shaped ring 27 outer lips are the aperture of valve body 1 dorsad also.
Four Y-shaped rings can be made by suitable material, for example, adopt fluorine rubber material.Return elastic member 13 can adopt any suitable elastic member, and in specific embodiment of the utility model, return elastic member 13 is springs.
In order to have better performance, the bottom of valve body 1 inner chamber is provided with positioning hole 31, and return elastic member 13 is resisted against in positioning hole 31.Valve body 1 at relief opening 12 places and relief opening 8 places go out to be provided with vent body cavity communicated with atmosphere.(due to the relation that position and this sectional view of vent has certain distance, vent inconvenience embodies in this sectional view.) stroke of slide bar 5 can determine as required, in specific embodiment of the utility model, the stroke of slide bar 5 is less than or equal to 9mm.The diameter of slide bar 5 can determine as required, and in specific embodiment of the utility model, the diameter of slide bar 5 is 9mm.Can certainly be other suitable numerical value.
Working principle of the present utility model is as follows:
1, the logical atmosphere of the first air pressure delivery outlet, the second air pressure delivery outlet has air pressure output:
2, the first air pressure delivery outlet has air pressure output, and the second air pressure delivery outlet leads to atmosphere:
Single slide bar commutation relay valve of this structure, the one, even if the lubrication effect between Y-shaped ring lip and slide bar 3 declines in use for some time to some extent, in Y-shaped ring lip working procedure, can produce resiliently deformable under pressure, still can guarantee good sealing effect, guarantee that assembly can not leak gas; The 2nd, because 4 Y-shaped rings that adopt are clipped in the middle by 5 each support rings, in working procedure, compress each other, in slide bar sliding process, Y-shaped ring lip is subject to gas pressure to produce the thick portion of resiliently deformable banding slide bar, and lip can not damage, and reliability is good; The 3rd, by Y-shaped ring lip, distortion realizes sealing to Y-shaped ring sealing structure mode, and the wearing and tearing between Y-shaped ring lip and slide bar 3 are less, so working life is higher; The 4th, slide bar form structure is simple, is convenient to processing, and technology capability is good.
Adopt single slide bar commutation relay valve of this structure, by structure, changed, by original O type circle sealing, changed sealing means into present Y-shaped ring sealing configuration mode.Can not only meet the functional requirement of original relay valve simultaneously, and existing relay valve is evaded because the possible damage in piston O type circle sliding process causes gas leakage in essence ground, the risk that clamping stagnation etc. may lose efficacy, and then improve the reliability that car load speed-change and gearshift is carried out; And adopt the more original O type coil structures of Y-shaped ring sealing configuration to extend working life, not only improve the reliability of product, due to design of part simple shape, dimensioned precision is more convenient for guaranteeing, technology capability is good, assembly structure is simply convenient to assembling, assembly process process is good, and mounting-positioning holes size and location size and the former relay valve of valve body are in full accord, can directly replace original-pack relay valve and can not interfere with gear box in transmission assembly assembly process.
To sum up, single slide bar commutation relay valve of the present utility model design is ingenious, simple for structure, good reliability, and long service life, good endurance, is suitable for large-scale promotion application.
In this specification, the utility model is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (10)
1. a single slide bar commutation relay valve, it is characterized in that, comprise valve body, piston and slide bar, in this valve body, there is inner chamber, described slide bar is movably set in the inner chamber of this valve body, this slide bar comes and goes mobile along the inner chamber of described valve body, the bottom of described slide bar is inserted in the positioning hole in described valve body, described piston sleeve is located at the top of this slide bar, return elastic member is positioned at the bottom of the inner chamber of described valve body, the two ends of this return elastic member are respectively against the bottom of the inner chamber of described valve body and described slide bar, Y-shaped ring and support ring are sheathed on outside described slide bar.
2. single slide bar commutation relay valve according to claim 1, is characterized in that, a side of described valve body is provided with suction port, first row gas port and second row gas port, and the opposite side of described valve body is provided with the first air pressure delivery outlet and the second air pressure delivery outlet.
3. single slide bar commutation relay valve according to claim 2, is characterized in that, described slide bar comes and goes mobile along primary importance and the second place in the inner chamber of described valve body;
While being positioned at described primary importance, described suction port is connected with the second described air pressure delivery outlet, and the first described air pressure delivery outlet is connected and is communicated with atmosphere with described first row gas port;
While being positioned at the described second place, described suction port is connected with the first described air pressure delivery outlet, and the second described air pressure delivery outlet and described second row gas port are connected and are communicated with atmosphere.
4. single slide bar commutation relay valve according to claim 2, is characterized in that, described Y-shaped ring and described support ring interval arrange, and the both ends of the surface of described Y-shaped ring are closely against two adjacent support rings.
5. single slide bar commutation relay valve according to claim 1, is characterized in that, end cap fixed cover is located at the top of described valve body, and described piston comes and goes mobile in described end cap.
6. single slide bar commutation relay valve according to claim 4, it is characterized in that, the quantity of described Y-shaped ring is 4, the quantity of described support ring is 5, described Y-shaped ring is followed successively by the first Y-shaped ring along bottom to the top of described valve body, the second Y-shaped ring, the 3rd Y-shaped ring and the 4th Y-shaped ring, the first described Y-shaped ring and the second described Y-shaped ring lay respectively at the both sides of the first described air pressure delivery outlet, the 3rd described Y-shaped ring and the 4th described Y-shaped ring lay respectively at the both sides of the second described air pressure delivery outlet, the second described Y-shaped ring and the 3rd described Y-shaped ring lay respectively at the both sides of described suction port.
7. single slide bar commutation relay valve according to claim 2, is characterized in that, described slide bar have the rear thin portion connecting successively along top to bottom, rear thick portion, in thin portion, in thick portion, front thin portion and front thick portion;
Be positioned at described primary importance, described rear thick portion and described in thick portion be tightly connected with the inner lip of described Y-shaped ring respectively, in described, the inner lip of thin portion and described front thin portion and described Y-shaped ring is separated, described rear thick portion and described in thick portion contact sealing with described Y-shaped ring inner lip respectively, described rear thin portion and described in carefully portion and the disengaging of Y-shaped ring inner lip.
8. single slide bar commutation relay valve according to claim 1, is characterized in that, described return elastic member is spring.
9. single slide bar commutation relay valve according to claim 2, is characterized in that, described first row gas port and described second row gas port are provided with dustproof sheet and dust cap.
10. single slide bar commutation relay valve according to claim 1, is characterized in that, the stroke of described slide bar is less than or equal to 9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789011.3U CN203585425U (en) | 2013-12-03 | 2013-12-03 | Single-slide bar reversing relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789011.3U CN203585425U (en) | 2013-12-03 | 2013-12-03 | Single-slide bar reversing relay valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585425U true CN203585425U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320789011.3U Expired - Fee Related CN203585425U (en) | 2013-12-03 | 2013-12-03 | Single-slide bar reversing relay valve |
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| Country | Link |
|---|---|
| CN (1) | CN203585425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033626A (en) * | 2014-06-11 | 2014-09-10 | 陕西法士特齿轮有限责任公司 | Double-control integration valve |
-
2013
- 2013-12-03 CN CN201320789011.3U patent/CN203585425U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033626A (en) * | 2014-06-11 | 2014-09-10 | 陕西法士特齿轮有限责任公司 | Double-control integration valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151230 Address after: 442003 Shiyan City, Hubei Province Zhang Wan Street No. 40 Hua Fang Ma Ping Lu Patentee after: KNORR-BREMSE DETC COMMERCIAL VEHICLE BRAKING TECHNOLOGY CO.,LTD. Address before: 201114 13B building, 88 Chun Huan Road, Minhang District hi tech park, Pujiang Town, Shanghai, China Patentee before: DONGFENG ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20211203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |