CN200999041Y - Gas-liquid combination braking apparatus - Google Patents
Gas-liquid combination braking apparatus Download PDFInfo
- Publication number
- CN200999041Y CN200999041Y CNU2007201233184U CN200720123318U CN200999041Y CN 200999041 Y CN200999041 Y CN 200999041Y CN U2007201233184 U CNU2007201233184 U CN U2007201233184U CN 200720123318 U CN200720123318 U CN 200720123318U CN 200999041 Y CN200999041 Y CN 200999041Y
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- cylinder
- brake cylinder
- piston
- valve
- brake
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- Expired - Fee Related
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Abstract
A gas & liquid brake gear, comprising a braking hydro-cylinder with the oil mouth and a braking cylinder with the gas mouth; the braking hydro-cylinder and the braking cylinder are fixed from each other and the piston rod is situated between the braking hydro-cylinder and the braking cylinder. Both ends of the piston rod are arranged with the hydro-cylinder piston and the cylinder piston. Also, the hydro-cylinder is provided with the oil-in and the compensation oil cup. The return spring is arranged between the cylinder piston and the flange. This utility model is characterized in that the oil-in joint is equipped with the filling valve which comprises a valve port and a valve stem with the valve spool. Both the valve port and the valve spool are matched from each other. The top of the valve stem is flexible and goes through the valve port as well as connects with the oil-in joint via the return spring, while the lower end of the valve stem goes through the oil-in and matches the adjusting device which is arranged on the hydro-cylinder piston. This utility model has the advantages of easy processing, operational safety, good sealing and fast braking, so as to effectively prevent the cylinder and the hydro-cylinder from the dust. Therefore, the friction is decreased, while the service life hereof is extended.
Description
Technical field
The utility model relates to a kind of construction machinery and equipment brake equipment, particularly a kind of Associated brake master cylinder.
Background technology
At present, the Associated brake master cylinder that is used for construction machinery and equipment generally comprise with hydraulic fluid port brake cylinder and with the brake cylinder of gas port, brake cylinder and brake cylinder are integral by flange is affixed each other, piston rod is between brake cylinder and brake cylinder, the corresponding liquid mouth excessively in piston rod two ends, mistake gas port are provided with oil cylinder piston and cylinder piston, rubber seal is installed on the oil cylinder piston, cylinder body is provided with oil inlet, the position of the corresponding oil inlet of cylinder body is provided with the compensation lubricating cup, and the compensation lubricating cup is affixed through oily joint and cylinder body; Be provided with retracing spring between cylinder piston and the flange.There is following deficiency in use in this dynamic hydraulic combined master brake cylinder:
1), glancing impact, braking fluid in the brake cylinder easily passes back into the compensation lubricating cup from the gap between brake piston and the cylinder body inwall, or when brake off, braking fluid in the compensation lubricating cup passes back into brake cylinder from the gap between brake piston and the cylinder body inwall, will cause braking not rapidly or brake off is not rapid like this, have a strong impact on the effect of braking.
2), in the braking procedure, the rubber seal on the oil cylinder piston moves reciprocatingly in brake cylinder, easily is worn.After rubber seal wears up to a certain degree, can cause master cylinder gas leakage, leakage of oil on the one hand, shortened service life; Dust in the cylinder will enter brake cylinder by the worn-down rubber seal on the other hand, pollute brake solution, influence braking effect.
Summary of the invention
The purpose of this utility model just provide a kind of easy to process, use Associated brake device reliable, good sealing effect, its braking is sensitive, rapidly, can prevent effectively that dust from entering cylinder and oil cylinder, reduces friction, and prolonged the use mission.
The purpose of this utility model is to realize by such technical scheme, it comprise with hydraulic fluid port brake cylinder and with the brake cylinder of gas port, brake cylinder and brake cylinder are integral by flange is affixed each other, piston rod is between brake cylinder and brake cylinder, the corresponding liquid mouth excessively in piston rod two ends, mistake gas port are provided with oil cylinder piston and cylinder piston, cylinder body is provided with oil inlet, the position of the corresponding oil inlet of cylinder body is provided with the compensation lubricating cup, and the compensation lubricating cup is affixed through oily joint and cylinder body; Be provided with retracing spring between cylinder piston and the flange, it is characterized in that: cross in the oily joint and be provided with inlet valve, described inlet valve includes the valve rod of valve port, belt spool, valve port and spool are fitted to each other, valve rod upper end is movable passes valve port, and be connected with the oil-feed interface by retracing spring, the ring platform stirred on the lower end of valve rod is passed oil inlet and is arranged on oil cylinder piston matches.
Of the present utility model is to work like this: glancing impact, pressurized air enters brake cylinder by crossing gas port, cylinder piston moves to right, and piston rod drives oil cylinder piston and also moves right, after the braking fluid in the brake cylinder is squeezed, flow out to brake operation by crossing hydraulic fluid port, in this process, stir the ring platform and break away from valve rod, spool is stifled position valve port under the effect of retracing spring, braking fluid in the brake cylinder can not be back to the compensation lubricating cup, and braking rapidly; When braking is removed, pressure gas in the brake cylinder flows out through gas port, and cylinder piston drives oil cylinder piston and resets, and stirs valve rod until stirring the ring platform, at this moment, the predetermincd tension that valve rod overcomes retracing spring drives spool disengaging valve port, thereby the compensation lubricating cup is normally compensated brake cylinder, in this process, under the predetermincd tension effect of retracing spring, spool is blocked valve port closely, and the braking fluid in the brake cylinder can not be back to the compensation lubricating cup, removes thermal arrest rapidly.
Owing to adopted technique scheme, the utlity model has easy to process, use reliable, advantage of good sealing effect, its braking is sensitive, rapidly, can prevent effectively that dust from entering cylinder and oil cylinder, reduces friction, and prolongs and uses mission.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is the structural representation of first kind of embodiment of the present utility model;
Fig. 2 is an A part enlarged drawing among Fig. 1;
Among the figure: 1. cross hydraulic fluid port; 2. brake cylinder; 3. cross gas port; 4. brake cylinder; 5. flange; 6. piston rod; 7. oil cylinder piston; 8. cylinder piston; 9. oil inlet; 10. compensation lubricating cup; 11. cross oily joint; 12. retracing spring; 13. valve port; 14. spool; 15. valve rod; 16. retracing spring; 17. stir the ring platform; 18. antiseepage seal ring; 19. hard seal ring; 20. dust removal seal ring.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model comprise with hydraulic fluid port 1 brake cylinder 2 and with the brake cylinder 4 of gas port 3, brake cylinder 2 and brake cylinder 4 are integral by flange 5 is affixed each other, piston rod 6 is between brake cylinder 2 and brake cylinder 4, the corresponding hydraulic fluid port 1 excessively in piston rod 6 two ends, mistake gas port 3 are provided with oil cylinder piston 7 and cylinder piston 8, cylinder body is provided with oil inlet 9, cylinder body is provided with compensation lubricating cup 10 corresponding to the position of oil inlet 9, and compensation lubricating cup 10 is affixed with cylinder body through oily joint 11; Be provided with retracing spring 12 between cylinder piston 8 and the flange 5, it is characterized in that: cross in the oily joint 11 and be provided with inlet valve, described inlet valve includes the valve rod 15 of valve port 13, belt spool 14, valve port 13 is fitted to each other with spool 14, valve rod 15 upper end activities pass valve port 13, and by retracing spring 16 with cross oily joint 11 and be connected, stirring on the lower end of valve rod 15 is passed oil inlet 9 and is arranged on oil cylinder piston 7 encircled platform 17 and matched.
Of the present utility model is to work like this: glancing impact, pressurized air enters brake cylinder 4 by crossing gas port 3, cylinder piston 8 moves to right, and piston rod 6 drives oil cylinder piston 7 and also moves right, after the braking fluid in the brake cylinder 2 is squeezed, flow out to brake operation by crossing hydraulic fluid port 1, in this process, stir ring platform 17 and break away from valve rod 15, spool 14 is stifled position valve port 13 under the effect of retracing spring 16, braking fluid in the brake cylinder 2 can not be back to compensation lubricating cup 10, and braking rapidly; When braking is removed, pressure gas in the brake cylinder 4 flows out through gas port 3, cylinder piston 8 drives oil cylinder piston 7 and resets, stir valve rod 15 until stirring ring platform 17, at this moment, the predetermincd tension that valve rod 15 overcomes retracing spring 16 drives spool 14 disengaging valve ports 13, thereby make compensation lubricating cup 10 recover brake cylinder 2 is normally compensated, in this process, under the predetermincd tension effect of retracing spring 16, spool 14 is blocked valve port 13 closely, and the braking fluid in the brake cylinder 2 can not be back to compensation lubricating cup 10, and braking is removed rapidly.
As shown in Figure 1, brake cylinder 2 inwalls are provided with the antiseepage seal ring 18 that matches with piston rod 6, this antiseepage seal ring 18 can be Y-shaped, can certainly be O shape, it is opened brake cylinder 2 and brake cylinder 4 cylinders are isolated each other, prevent that effectively the braking fluid in the brake cylinder 2 from infiltrating brake cylinder 4, the influence braking.
Shown in Fig. 1 or 2, be provided with combined seal ring between brake cylinder 2 inwalls and the piston rod 6, this combined seal ring includes the hard seal ring 19 that matches with piston rod 6 and the antiseepage seal ring 18 between hard seal ring 19 and brake cylinder.The impurity particle that hard seal ring 19 is difficult for being entered in the oil cylinder 2 scratches damage, and it fits with piston rod 6 under the elastic force effect of antiseepage seal ring 18 closely, and sealing effectiveness is very remarkable.
As shown in Figure 1, brake cylinder 2 inwalls are provided with the dust removal seal ring 20 that matches with piston rod 6 corresponding to the inner chamber of brake cylinder 4.It can effectively reject the impurity particle on the piston rod 6, prevents that the impurity particle in the brake cylinder 4 from bringing brake cylinder 2 into through piston rod 6, pollutes braking fluid.
Claims (4)
1. dynamic hydraulic combined brake equipment, comprise with hydraulic fluid port (1) brake cylinder (2) and with the brake cylinder (4) of gas port (3), brake cylinder (2) and brake cylinder (4) are integral by flange (5) is affixed each other, piston rod (6) is positioned between brake cylinder (2) and the brake cylinder (4), the corresponding hydraulic fluid port (1) of crossing in piston rod (6) two ends, cross gas port (3) and be provided with oil cylinder piston (7) and cylinder piston (8), cylinder body is provided with oil inlet (9), cylinder body is provided with compensation lubricating cup (10) corresponding to the position of oil inlet (9), and compensation lubricating cup (10) is affixed through oily joint (11) and cylinder body; Be provided with retracing spring (12) between cylinder piston (8) and the flange (5), it is characterized in that: cross in the oily joint (11) and be provided with inlet valve, described inlet valve includes the valve rod (15) of valve port (13), belt spool (14), valve port (13) is fitted to each other with spool (14), valve rod (15) upper end is movable passes valve port (13), and by retracing spring (16) with cross oily joint (11) and be connected, stirring on the lower end of valve rod (15) is passed oil inlet (9) and is arranged on oil cylinder piston (7) encircled platform (17) and matched.
2. dynamic hydraulic combined brake equipment as claimed in claim 1 is characterized in that: brake cylinder (2) inwall is provided with the antiseepage seal ring (18) that matches with piston rod (6), and this antiseepage seal ring (18) is and is O shape or Y shape.
3. dynamic hydraulic combined brake equipment as claimed in claim 1 or 2, it is characterized in that: be provided with combined seal ring between brake cylinder (2) inwall and the piston rod (6), this combined seal ring includes the hard seal ring (19) that matches with piston rod (6) and is positioned at antiseepage seal ring (18) between hard seal ring (19) and the brake cylinder.
4. dynamic hydraulic combined brake equipment as claimed in claim 1 or 2 is characterized in that: brake cylinder (2) inwall is provided with the dust removal seal ring (20) that matches with piston rod (6) corresponding to the inner chamber of brake cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201233184U CN200999041Y (en) | 2007-01-09 | 2007-01-09 | Gas-liquid combination braking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201233184U CN200999041Y (en) | 2007-01-09 | 2007-01-09 | Gas-liquid combination braking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200999041Y true CN200999041Y (en) | 2008-01-02 |
Family
ID=39013449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201233184U Expired - Fee Related CN200999041Y (en) | 2007-01-09 | 2007-01-09 | Gas-liquid combination braking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200999041Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434607A (en) * | 2011-09-24 | 2012-05-02 | 芜湖众发汽车制动***有限公司 | Brake main cylinder with double oil outlet connectors and residual valve |
| CN105383465A (en) * | 2015-11-09 | 2016-03-09 | 苏细调 | Loader brake pump |
-
2007
- 2007-01-09 CN CNU2007201233184U patent/CN200999041Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434607A (en) * | 2011-09-24 | 2012-05-02 | 芜湖众发汽车制动***有限公司 | Brake main cylinder with double oil outlet connectors and residual valve |
| CN105383465A (en) * | 2015-11-09 | 2016-03-09 | 苏细调 | Loader brake pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20160109 |