CN203979209U - A kind of heavy truck clutch booster assembly - Google Patents
A kind of heavy truck clutch booster assembly Download PDFInfo
- Publication number
- CN203979209U CN203979209U CN201420324186.1U CN201420324186U CN203979209U CN 203979209 U CN203979209 U CN 203979209U CN 201420324186 U CN201420324186 U CN 201420324186U CN 203979209 U CN203979209 U CN 203979209U
- Authority
- CN
- China
- Prior art keywords
- pneumatic cylinder
- seal ring
- booster assembly
- clutch booster
- heavy truck
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 11
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 4
- 230000007717 exclusion Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a kind of heavy truck clutch booster assembly, comprise that rear end and front end have respectively the pneumatic cylinder of suction port and relief opening, have liquid entering hole and the oil hydraulic cylinder that is connected with pneumatic cylinder rear end and be positioned at pneumatic cylinder and two ends are connected with respectively push rod and rear end and stretch into the piston of the piston rod of oil hydraulic cylinder; Intake and exhaust control valve comprises the valve body being connected with oil hydraulic cylinder sidewall and pneumatic cylinder rear end respectively, and described valve body is provided with compression gas port and the suction port with pneumatic cylinder internal communication; At described compression gas port place, sealing is provided with the first seal ring, and at described suction port place, sealing is provided with the second seal ring.The utility model embodiment is at gas flow port: compression gas port place and suction port place respectively arrange a seal ring, make external dust be difficult to enter valve inner, and dirt exclusion capabilities is strong, and product is also not easy gas leakage and lost efficacy.
Description
Technical field
The utility model relates to automobile clutch technical field, relates in particular to a kind of heavy truck clutch booster assembly.
Background technique
Heavy truck clutch control system is hydraulic air boosting mechanism, mainly formed by clutch oil can, clutch pedal, clutch master cylinder, clutch pipeline and clutch booster assembly, wherein clutch booster assembly belongs to clutch control system medium power output executing mechanism, its power source is from the pressure of brake fluid, promote to separate fork through push rod, clutch is realized and separated combination, and then realize clutch system function.The reliability of clutch booster assembly and smoothness directly affect the driving functions of vehicle and driver's travelling comfort.
Fig. 1 shows the structural representation of clutch booster assembly in prior art, and the defect of this clutch booster assembly is: the sealing poor stability of its gas circuit, dirt exclusion capabilities is bad.
Model utility content
In order to solve gas circuit sealing poor stability in prior art, the problem that dirt exclusion capabilities is bad, the utility model provides the heavy truck clutch booster assembly that a kind of sealing is strong.
For achieving the above object, the technical solution of the utility model is:
A kind of heavy truck clutch booster assembly, comprises that rear end and front end have respectively the pneumatic cylinder of suction port and relief opening, have liquid entering hole and the oil hydraulic cylinder that is connected with pneumatic cylinder rear end and be positioned at pneumatic cylinder and two ends are connected with respectively push rod and rear end and stretch into the piston of the piston rod of oil hydraulic cylinder; Intake and exhaust control valve comprises the valve body being connected with oil hydraulic cylinder sidewall and pneumatic cylinder rear end respectively, and described valve body is provided with compression gas port and the suction port with pneumatic cylinder internal communication; At described compression gas port place, sealing is provided with the first seal ring, and at described suction port place, sealing is provided with the second seal ring.
Preferably, described the first seal ring and described the second seal ring are O-ring seals.
Preferably, on described pneumatic cylinder, be provided with the position structure of the moving direction for limiting described piston rod.
Preferably, described pneumatic cylinder is the overall structure being formed by machining; And on described pneumatic cylinder, offer the endoporus for running through for described piston rod, described position structure comprises the guide ring being arranged on described endoporus inwall, the to-and-fro motion under the leading role of described guide ring inwall of described piston rod.
Preferably, described guide ring is provided with the oil storage tank for storing lubricant oil towards the side of described piston rod.
Preferably, be also provided with piston rod seal on described pneumatic cylinder, described piston rod seal comprises and is arranged on the supporting base of described interior bore edges and is separately positioned on the 3rd seal ring and the 4th seal ring of the described supporting base left and right sides.
Preferably, described the 3rd seal ring and described the 4th seal ring are the y-shaped ring that cross section is Y shape.
Preferably, in the valve body of described intake and exhaust control valve, be provided with the first spool, the second spool, tracheae, large return spring and be arranged in the little return spring in large return spring; Described the first spool comprises the first traveller that is arranged in the first slide opening and mate with the first slide opening and the baffle ring being connected with the first traveller; The end face of the first traveller is provided with big spring hole, and the bottom surface in big spring hole is provided with the little spring hole connecting with baffle ring end face; The two ends of the second spool are respectively equipped with the bearing post that the second traveller of being arranged in the second slide opening and mate with the second slide opening and diameter are less than aperture, little spring hole; The two ends of large return spring compress respectively bottom surface and the valve body in big spring hole; The two ends of little return spring compress respectively bearing post and valve body;
Described the second traveller and described bearing post are made by aluminum material, and described the second traveller and described bearing post one-body molded, form equalizing piston.
Preferably, described push rod outside is arranged with dust-proof cover, and the side margin that described dust-proof cover is connected with described pneumatic cylinder is provided with secondary lip.
Preferably, described dust-proof cover is made up of thermoplastic polyester elastomer (TPEE) material.
The beneficial effects of the utility model are, the utility model embodiment is at gas flow port: compression gas port place and suction port place respectively arrange a seal ring, make external dust be difficult to enter valve inner, and dirt exclusion capabilities is strong, and product is also not easy gas leakage and lost efficacy.
Brief description of the drawings
Fig. 1 shows the structural representation of clutch booster assembly in prior art;
Fig. 2 shows the structural representation of the utility model embodiment clutch booster assembly;
Fig. 3 shows the structural representation of the intake and exhaust control valve shown in Fig. 2;
Fig. 4 shows the preferred structure schematic diagram of equalizing piston in the intake and exhaust control valve shown in Fig. 2;
Fig. 5 shows the enlarged diagram of the local A shown in Fig. 2;
Fig. 6 shows the structural representation of the y-shaped ring shown in Fig. 5.
Fig. 7 shows the structural representation of the outer wall joint of the dust-proof cover shown in Fig. 2 and pneumatic cylinder.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
As shown in Figure 1, it is the structural representation of clutch booster assembly in prior art, this clutch booster assembly, comprises that rear end and front end have respectively the pneumatic cylinder 2 of suction port 21 and relief opening 22, have liquid entering hole 31 and the oil hydraulic cylinder 3 that is connected with pneumatic cylinder 2 rear ends, be positioned at pneumatic cylinder 2 and two ends are connected with respectively push rod 1 and the piston 5 of the piston rod 4 of oil hydraulic cylinder 3, the intake and exhaust control valve 6 that is arranged at oil hydraulic cylinder 3 sidewalls and friction disc wear measuring device 7 are stretched in rear end; Between piston 5 one end and pneumatic cylinder 2, there is Returnning spring 8; Returnning spring 8 is connected with between one end and pneumatic cylinder 2 of piston rod 4 at piston 5.
Described friction disc wear measuring device 7 comprises the slider block 71 and the slide bar 72 that are connected with pneumatic cylinder 2 rear end screws; One end of slide bar 72 is threaded with piston 5 through slider block 71 and pneumatic cylinder 2 rear ends; The gusset of the other end of slide bar 72 has size graticule 73; Slide bar 72 is slidably connected and seals by slide bar seal ring 74 with slider block 71.
Described intake and exhaust control valve 6 comprises valve body 62, the first spool 63, the second spool 64, tracheae 61, the large return spring 65 being connected with oil hydraulic cylinder 3 sidewalls and pneumatic cylinder 2 rear ends respectively and is arranged in the little return spring 66 in large return spring 65; Valve body 62 has the second slide opening 621 of being communicated with oil hydraulic cylinder 3 successively, have the inlet hole 622 that is communicated with suction port 21 and pressurized air mouth 623 and supporting ring 624 lumen 625, the first slide opening 626, there is the gas returning port 627 that is communicated with by tracheae 61 with relief opening 22 and the exocoel 629 of exhaust port 628; The first spool 63 comprise be arranged in the first slide opening 626 and with the first traveller 631 of the first slide opening 626 Spielpassung and the baffle ring 632 that is connected with the first traveller 631; The end face of the first traveller 631 has big spring hole 633, and the bottom surface in big spring hole 633 has the little spring hole 634 connecting with baffle ring 632 end faces; The two ends of the second spool 64 have respectively and are arranged in the second slide opening 621 and are less than the bearing post 642 in 634 apertures, little spring hole with the second traveller 641 of the second slide opening 621 Spielpassung and diameter; The two ends of large return spring 65 compress respectively bottom surface and the valve body 62 in big spring hole 633; The two ends of little return spring 66 compress respectively bearing post 642 and valve body 62.
When this clutch booster assembly uses, let slip the clutch, hydraulic oil enters the interior formation certain pressure of oil hydraulic cylinder 3 from liquid entering hole 31 and acts on piston rod 4 and promote piston 5 and drive push rod 1 to move forward under the promotion of clutch master cylinder, the pressure-acting that hydraulic oil produces is simultaneously on the second traveller 641, the second spool 64 promotes the first spool 63 and moves pressurized air mouth 623 is communicated with suction port 21, pressurized air enters and enters pneumatic cylinder 2 through suction port 21 from pressurized air mouth 623 piston 5 power-assisteds promotion pistons 5 is moved forward, push rod 1 separates two friction plates of clutch by the clutch arm hinged with it to carry out gear shift operation, can measure friction disc wear situation by friction disc wear measuring device 7, to change in time the friction plate that is about to inefficacy simultaneously.Release the clutch pedal, hydraulic oil decompression in oil hydraulic cylinder 3, the first spool 63 and the second spool 64 reset respectively under the reposition force effect of large return spring 65 and little return spring 66, baffle ring 632 is fitted with supporting ring 624, pressurized air in pneumatic cylinder 2 is discharged from exhaust port 628 through suction port 21, under the effect of clutch arm reposition force, push rod 1 promotes piston 5 and piston rod 4 resets.
Poor in order to solve the gas circuit sealing of above-mentioned clutch booster assembly, the problem that dirt exclusion capabilities is bad, the utility model embodiment provides a kind of heavy truck clutch booster assembly, optimizes the structure of its gas circuit, has strengthened sealing stability and the dirt exclusion capabilities of gas circuit.
As shown in Figures 2 and 3, be provided with the first seal ring 102 in described compression gas port 623 places sealing, be provided with the second seal ring 103 in described suction port 21 places sealing, in a preferred embodiment of the present utility model, described the first seal ring 102 and described the second seal ring 103 are O-ring seals.In the present embodiment, at gas flow port, seal arrangement is set, makes external dust be difficult to enter valve body 62 inside; Even if there is dust to enter into sealing area, be seal with O ring due to what adopt, product is also not easy gas leakage and lost efficacy.
In a preferred embodiment of the present utility model, for solving the poor problem of alignment of piston rod 4 in prior art, with reference to Fig. 2 and Fig. 5, on described pneumatic cylinder 2, be provided with the position structure of the moving direction for limiting described piston rod 4.Particularly, described pneumatic cylinder 2 is the overall structures that formed by machining; And on described pneumatic cylinder 2, offer the endoporus for running through for described piston rod 4, described position structure comprises the guide ring 104 being arranged on described endoporus inwall, the to-and-fro motion under the leading role of described guide ring 104 inwalls of described piston rod 4.In the present embodiment, because pneumatic cylinder 2 adopts machining, thus the size that has ensured pneumatic cylinder 2 with and on the size of the endoporus of offering, in conjunction with the setting of described position structure, ensure the coaxality of piston rod 4 with the endoporus of described pneumatic cylinder 2, thereby ensured the moving direction of piston rod 4.In addition, described guide ring 104 is provided with the oil storage tank for storing lubricant oil towards the side of described piston rod 4, has reduced the wearing and tearing that cause piston rod outer surface due to the friction between piston rod 4 and guide ring 104.And the composite that described guide ring 104 adds graphite by teflon is made, wear resistance is good.
In another novel excellent embodiment of this use, for solving the gas circuit of clutch booster assembly and the poor problem of sealing of oil circuit, with reference to Fig. 2 and Fig. 5, on described pneumatic cylinder 2, be also provided with piston rod seal, described piston rod seal comprises and is arranged on the supporting base 105 of described interior bore edges and is separately positioned on the 3rd seal ring 106 and the 4th seal ring 107 of described supporting base 105 left and right sides.It is y-shaped ring Y shape and as shown in Figure 6 that described the 3rd seal ring 106 and described the 4th seal ring 107 are cross section, and the selection of Y shape circle makes in the reciprocating process of piston rod 4, and anti-negative pressure performance is strong.Wherein, the gas y-shaped ring that described the 3rd seal ring 106 is the gas circuit for sealing described clutch booster assembly, the oily y-shaped ring that described the 4th seal ring 107 is the oil circuit for sealing described booster assembly.In addition, described the 3rd seal ring 106 and the 4th seal ring 107 are made by the good polyurethane material of wear resistance.Similarly, the side contacting with piston rod 4 at described the 3rd seal ring 106 and the 4th seal ring 107 is also provided for storing the oil storage tank of lubricant oil, has reduced the wearing and tearing that cause piston rod outer surface due to the friction between piston rod 4 and seal ring.
In a preferred embodiment of the present embodiment, form for solving that the second traveller 641 of equalizing piston 103 and the split-type structural of bearing post 642 cause in prior art: the unstable and plastic materials of guide movement absorbs brake fluid and expands, easily stuck problem, both make the second traveller 641 in described intake and exhaust control valve 6 and bearing post 642 by aluminum material, and both are one-body molded for this second traveller 641 and bearing post 642, form equalizing piston 103, the disposable clamping of described equalizing piston 103, coaxality and the size of product easily ensure, the surface of this equalizing piston 103 adopts hard anodize, coordinate and be difficult for hair fastener with aluminium valve body, indeformable, motion stabilization.
In a preferred embodiment of the present utility model, for the problem that sealing is poor, material is poor between dust-proof cover 11 and valve body 62 in solution prior art, with reference to Fig. 2 and Fig. 7, described push rod 1 outside is arranged with dust-proof cover 11, the side margin that described dust-proof cover 11 is connected with described pneumatic cylinder 2 is provided with secondary lip 111, thereby under low-pressure state, when this pair lip 111 can prevent seepage well, can effectively strike off dust.Especially, described dust-proof cover 11 adopts thermoplastic polyester elastomer material (TPEE), has replaced traditional ethylene propylene diene rubber or chloroprene rubber material, and material settling out is difficult for aging.
Describe structure of the present utility model, feature and action effect in detail according to the embodiment shown in graphic above; the foregoing is only preferred embodiment of the present utility model; but the utility model does not limit practical range with shown in drawing; every change of doing according to conception of the present utility model; or be revised as the equivalent embodiment of equivalent variations; when not exceeding yet specification and illustrating contain spiritual, all should be in protection domain of the present utility model.
Claims (10)
1. a heavy truck clutch booster assembly, comprises that rear end and front end have respectively the pneumatic cylinder of suction port and relief opening, have liquid entering hole and the oil hydraulic cylinder that is connected with pneumatic cylinder rear end and be positioned at pneumatic cylinder and two ends are connected with respectively push rod and rear end and stretch into the piston of the piston rod of oil hydraulic cylinder; Intake and exhaust control valve comprises the valve body being connected with oil hydraulic cylinder sidewall and pneumatic cylinder rear end respectively, and described valve body is provided with compression gas port and the suction port with pneumatic cylinder internal communication; It is characterized in that, at described compression gas port place, sealing is provided with the first seal ring, and at described suction port place, sealing is provided with the second seal ring.
2. heavy truck clutch booster assembly according to claim 1, is characterized in that, described the first seal ring and described the second seal ring are O-ring seals.
3. heavy truck clutch booster assembly according to claim 1, is characterized in that, is provided with the position structure of the moving direction for limiting described piston rod on described pneumatic cylinder.
4. heavy truck clutch booster assembly according to claim 3, is characterized in that, described pneumatic cylinder is the overall structure being formed by machining; And on described pneumatic cylinder, offer the endoporus for running through for described piston rod, described position structure comprises the guide ring being arranged on described endoporus inwall, the to-and-fro motion under the leading role of described guide ring inwall of described piston rod.
5. heavy truck clutch booster assembly according to claim 4, is characterized in that, described guide ring is provided with the oil storage tank for storing lubricant oil towards the side of described piston rod.
6. heavy truck clutch booster assembly according to claim 4, it is characterized in that, on described pneumatic cylinder, be also provided with piston rod seal, described piston rod seal comprises and is arranged on the supporting base of described interior bore edges and is separately positioned on the 3rd seal ring and the 4th seal ring of the described supporting base left and right sides.
7. heavy truck clutch booster assembly according to claim 6, is characterized in that, described the 3rd seal ring and described the 4th seal ring are the y-shaped ring that cross section is Y shape.
8. heavy truck clutch booster assembly according to claim 6, is characterized in that, is provided with the first spool, the second spool, tracheae, large return spring and is arranged in the little return spring in large return spring in the valve body of described intake and exhaust control valve; Described the first spool comprises the first traveller that is arranged in the first slide opening and mate with the first slide opening and the baffle ring being connected with the first traveller; The end face of the first traveller is provided with big spring hole, and the bottom surface in big spring hole is provided with the little spring hole connecting with baffle ring end face; The two ends of the second spool are respectively equipped with the bearing post that the second traveller of being arranged in the second slide opening and mate with the second slide opening and diameter are less than aperture, little spring hole; The two ends of large return spring compress respectively bottom surface and the valve body in big spring hole; The two ends of little return spring compress respectively bearing post and valve body;
Described the second traveller and described bearing post are made by aluminum material, and described the second traveller and described bearing post one-body molded, form equalizing piston.
9. according to the heavy truck clutch booster assembly described in claim 1 to 8 any one, it is characterized in that, described push rod outside is arranged with dust-proof cover, and the side margin that described dust-proof cover is connected with described pneumatic cylinder is provided with secondary lip.
10. heavy truck clutch booster assembly according to claim 9, is characterized in that, described dust-proof cover is made up of thermoplastic polyester elastomer (TPEE) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324186.1U CN203979209U (en) | 2014-06-17 | 2014-06-17 | A kind of heavy truck clutch booster assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324186.1U CN203979209U (en) | 2014-06-17 | 2014-06-17 | A kind of heavy truck clutch booster assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979209U true CN203979209U (en) | 2014-12-03 |
Family
ID=51976658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420324186.1U Expired - Fee Related CN203979209U (en) | 2014-06-17 | 2014-06-17 | A kind of heavy truck clutch booster assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554506A (en) * | 2017-08-14 | 2018-01-09 | 厦门金利业科技有限公司 | Anti-jamming high temperature-proof failure booster pump |
-
2014
- 2014-06-17 CN CN201420324186.1U patent/CN203979209U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554506A (en) * | 2017-08-14 | 2018-01-09 | 厦门金利业科技有限公司 | Anti-jamming high temperature-proof failure booster pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |