CN202320268U - Plunger type air booster pump - Google Patents
Plunger type air booster pump Download PDFInfo
- Publication number
- CN202320268U CN202320268U CN 201120499260 CN201120499260U CN202320268U CN 202320268 U CN202320268 U CN 202320268U CN 201120499260 CN201120499260 CN 201120499260 CN 201120499260 U CN201120499260 U CN 201120499260U CN 202320268 U CN202320268 U CN 202320268U
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- Prior art keywords
- cylinder
- plunger
- hydraulic
- hydraulic cylinder
- hydraulic actuating
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- Expired - Fee Related
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Abstract
The utility model discloses a plunger type air booster pump, which relates to a power assisting device for car braking. A cylinder bogy is in coaxial connection with one end of a hydraulic cylinder body through a cylinder end cover; the other end of the cylinder body is in fixed connection with a hydraulic cylinder end cover; an gas inlet hole is arranged in the bottom of the cylinder body; the cylinder end cover is provided with a respirator; a cylinder piston is positioned in a cylinder body cavity and is provided with a cylinder seal ring; a cylinder spring is arranged between the cylinder piston and the cylinder end cover; one end of a top rod is fixed with the cylinder piston, and the other end of the top rod jacks a hydraulic plunger; a circular groove arranged on the inner surface of the hydraulic cylinder body is communicated with an oil storage cup, and a liquid outlet hole is arranged on the hydraulic cylinder end cover and is provided with an oil outlet valve; the hydraulic cylinder end cover is connected with the hydraulic cylinder body; a hydraulic cylinder main seal ring is positioned between the inner side of the hydraulic cylinder body cavity and the hydraulic cylinder end cover and forms seal with the hydraulic cylinder plunger; a hydraulic cylinder side seal ring is arranged at the periphery of one end of the hydraulic cylinder plunger and forms seal with the inner periphery of the hydraulic cylinder body; a hydraulic cylinder spring is arranged between the other end of the hydraulic cylinder plunger and the hydraulic cylinder end cover; and a pressure relief hole is arranged at the contact part between the other end of the hydraulic cylinder plunger and the hydraulic cylinder main seal ring.
Description
Technical field
The utility model relates to a kind of car brakeing and uses work-saving device, particularly a kind of air-assisted pump.
Background technology
In the prior art; The air booster pump is used for vehicle braked, and it is made up of cylinder-piston assembly, push rod, pull back spring, lubricating cup assembly, hydraulic cylinder-push rod-hydraulic piston assembly, during work; Be that pressure air is fed cylinder; Act on the larger area cylinder piston and form thrust, move through the hydraulic piston than small size in the push rod promotion hydraulic actuating cylinder, hydraulic piston makes the hydraulic pressure transfer of generation give the clamp of drg; Promote the clamp piston, make clamp hold brake disc tightly and realize car brakeing.Because the cylinder piston area, can make the hydraulic pressure of the less air pressure of cylinder in hydraulic actuating cylinder generation several times greater than the area of hydraulic piston in the hydraulic actuating cylinder, realizes function of increasing pressure.The physical structure of prior art such as application number are 200720035129.1 the disclosed a kind of air booster pump of utility model patent, and its hydraulic actuating cylinder partly adopts the hydraulic piston structure, and its requirement on machining accuracy is high; Service life is short; Sealing effectiveness is poor, and its pneumaticpiston adopts cast type piston, complex structure; Manufacture difficulty is big, and it is many to consume material.
The utility model content
In order to solve the technological deficiency that prior art exists, the purpose of the utility model is to provide a kind of plunger tpe air booster pump, and it is easy to manufacture, and precision is high, reliable operation, long service life.
To achieve these goals, the technical scheme of the utility model is:
A kind of plunger tpe air booster pump comprises cylinder block, cylinder piston, cylinder spring, hydraulic cylinder body, hydraulic actuating cylinder spring, oil storage cup, wherein:
Cylinder block is connected hydraulic cylinder other end captive joint hydraulic actuating cylinder end cap through cylinder end piece with hydraulic cylinder body one end coaxial line;
The cylinder block bottom has induction opening; Cylinder end piece has respirator; Cylinder piston is positioned at the cylinder block chamber and forms sealing through cylinder packing circle and cylinder block inner chamber; The cylinder spring places between cylinder piston and the cylinder end piece, and push rod one end is captiveed joint with cylinder piston, and other end pushing tow is in cylinder plunger;
The hydraulic cylinder body inside face has circular groove, and circular groove is communicated with oil storage cup, and the air bleed hole of hydraulic cylinder body is sealed by air bleed screw;
The hydraulic actuating cylinder end cap has fluid hole; Fluid hole sets out fuel tap; Hydraulic actuating cylinder end cap and hydraulic cylinder body are through being threaded; Hydraulic actuating cylinder primary seal circle is positioned at the joint portion of hydraulic cylinder body chamber and hydraulic actuating cylinder end cap and forms sealing with the cylinder plunger outer peripheral face, and cylinder plunger is positioned at the hydraulic cylinder body chamber, and cylinder plunger one end periphery has the hydraulic actuating cylinder secondary seal ring and forms sealing with the hydraulic cylinder body inner peripheral surface; Have the hydraulic actuating cylinder spring between the cylinder plunger other end and the hydraulic actuating cylinder end cap, this end of cylinder plunger has pressure relief vent with the outer shroud that hydraulic actuating cylinder primary seal circle contacts.
The cylinder plunger two ends have blind hole, and the push rod pushing tow is in cylinder plunger one end blind hole, and the hydraulic actuating cylinder spring push is in cylinder plunger other end blind hole, and the outer shroud that this end of cylinder plunger contacts with hydraulic actuating cylinder primary seal circle is uniformly distributed with 6 to 8 pressure relief vents.
The cylinder plunger outer round surface has hard chromium plating or bright nickel coating.
Cylinder piston is the stamped steel panel material.
Mounting bracket is fixed on the cylinder end piece.
Because after adopting such scheme; The utility model in use; The hydraulic cylinder body part has substituted the piston structure of prior art with piston structure; Reciprocating sealing surface is changed into the cylinder plunger cylindrical by the hydraulic cylinder body inner hole wall, and the cylindrical of cylinder plunger adds and improves more easily parameters such as dimensional accuracy, geometric accuracy, roughness, the serviceability and the service life of having improved product man-hour.The cylinder piston of cylinder portion is compared with the cylinder piston of aluminium alloy casting by the steel plate drawing, and is simple in structure, dependable performance, saving in material.
Description of drawings
Fig. 1 is a kind of plunger tpe air of the utility model booster pump front view.
Fig. 2 is a kind of plunger tpe air of the utility model booster pump left view.
Fig. 3 is a kind of plunger tpe air of the utility model booster pump cylinder plunger longitudinal section.
Label in the accompanying drawing:
1. hydraulic actuating cylinder end cap, 2. delivery valve, 3. hexagonal nut, 4. hydraulic actuating cylinder spring, 5. air bleed screw, 6. oil storage cup; 7. respirator, 8. cylinder end piece, 9. cylinder block, 10. push rod, 11. cylinder springs, 12. cylinder packing circles; 13. cylinder piston, 14. hydraulic actuating cylinder secondary seal rings, 15. mounting brackets, 16. hydraulic cylinder bodies, 17. cylinder plungers, 18. hydraulic actuating cylinder primary seal circles; 19. O-ring seals, 20. pressure relief vents, 21. induction openings, 22. fluid holes, 23. blind holes, 24. blind holes.
The specific embodiment
Be further described below in conjunction with the specific embodiment of Figure of description a kind of plunger tpe air of the utility model booster pump.
See Fig. 1, Fig. 2 and a kind of plunger tpe air of the utility model shown in Figure 3 booster pump; Mainly comprise members such as cylinder block 9, cylinder piston 13, cylinder spring 11, hydraulic cylinder body 16, hydraulic actuating cylinder spring 4, oil storage cup 6; Its structure is: cylinder block 9 is connected with hydraulic cylinder body 9 one end coaxial lines through cylinder end piece 8; Hydraulic cylinder body 16 other end captive joint hydraulic actuating cylinder end caps 1 seal through O-ring seals 19 between the two; Cylinder block 9 bottoms have induction opening 21, and in the voltage supply power air input cylinder block 9, cylinder end piece 8 has respirator 7; Supply the change of cylinder block 9 chambeies left volume when cylinder piston 13 side-to-side movements among Fig. 1 to carry out the discharge of air and replenish, cylinder piston 13 is processed expendable weight for the steel plate materials punching press; Economical with materials, production technology is simple and convenient, long service life; Cylinder piston 13 is positioned at cylinder block 9 chambeies and forms sealing through cylinder packing circle 12 and cylinder block 9 inner chambers; Cylinder spring 11 places between cylinder piston 13 and the cylinder end piece 8, and its elastic force air feed cylinder piston 13 resets to right-hand motion, and push rod 10 1 ends are captiveed joint with cylinder piston 13; Other end pushing tow passes to hydraulic plunger 17 in cylinder plunger 17 with air pressure.
This plunger tpe air booster pump at first pours into hydraulic oil from oil storage cup 6 when work, make it be full of hydraulic cylinder body 16; Deflate from air bleed screw 5, from induction opening 21 input pressurized airs, the pressurized air gas pressure is on cylinder piston 13; Overcome the elastic force of cylinder spring 11, hydraulic actuating cylinder spring 4, promote cylinder plunger 17 through the push rod 10 of captiveing joint and move, hydraulic pressure is passed to the car brakeing clamp with it; Because cylinder piston 13 areas are greater than cylinder plunger 17 areas; According to the Pascal's law principle, make the output hydraulic booster, the area of air cylinder and hydraulic actuating cylinder plane of action is than the rate of supercharging that can be considered the air booster pump.When admission port 21 stopped to import pressurized air, under the combined action of the pressure in hydraulic tubing, hydraulic actuating cylinder spring, cylinder spring 11, cylinder plunger 17, cylinder piston 11 were return original position; In the fall back process; Be the boundary with hydraulic actuating cylinder primary seal circle 18 in the hydraulic cylinder body 16, there is pressure reduction in the both sides epitrochoidal chamber, the hydraulic oil of epitrochoidal chamber that is communicated with oil storage cup 6 through 18 covering of hydraulic actuating cylinder primary seal circle to the chamber that is communicated with liquid outlet 22; Keep the pressure at both sides balance; After cylinder plunger 17 was retracted into initial bit with cylinder piston 13, the hydraulic oil that covers in the back off procedure was back to oil storage cup 6 through the pressure relief vent 20 of cylinder plunger 17, accomplishes a working cycle.
The utility model is used for the brake system of construction machinery and equipment, also is fit to the special vehicle brake system that load-carrying is big, speed is lower.
Claims (5)
1. a plunger tpe air booster pump comprises cylinder block, cylinder piston, cylinder spring, hydraulic cylinder body, hydraulic actuating cylinder spring, oil storage cup, it is characterized in that:
Cylinder block is connected hydraulic cylinder body other end captive joint hydraulic actuating cylinder end cap through cylinder end piece with hydraulic cylinder body one end coaxial line;
The cylinder block bottom has induction opening; Cylinder end piece has respirator; Cylinder piston is positioned at the cylinder block chamber and forms sealing through cylinder packing circle and cylinder block inner chamber; The cylinder spring places between cylinder piston and the cylinder end piece, and push rod one end is captiveed joint with cylinder piston, and other end pushing tow is in cylinder plunger;
The hydraulic cylinder body inside face has circular groove, and circular groove is communicated with oil storage cup, and the air bleed hole of hydraulic cylinder body is sealed by air bleed screw;
The hydraulic actuating cylinder end cap has fluid hole; Fluid hole sets out fuel tap; Hydraulic actuating cylinder end cap and hydraulic cylinder body are through being threaded; Hydraulic actuating cylinder primary seal circle is positioned at the joint portion of hydraulic cylinder body chamber and hydraulic actuating cylinder end cap and forms sealing with the cylinder plunger outer peripheral face, and cylinder plunger is positioned at the hydraulic cylinder body chamber, and cylinder plunger one end periphery has the hydraulic actuating cylinder secondary seal ring and forms sealing with the hydraulic cylinder body inner peripheral surface; Have the hydraulic actuating cylinder spring between the cylinder plunger other end and the hydraulic actuating cylinder end cap, this end of cylinder plunger has pressure relief vent with the outer shroud that hydraulic actuating cylinder primary seal circle contacts.
2. a kind of plunger tpe air booster pump according to claim 1; It is characterized in that: the cylinder plunger two ends have blind hole; The push rod pushing tow is in cylinder plunger one end blind hole; The hydraulic actuating cylinder spring push is in cylinder plunger other end blind hole, and the outer shroud that this end of cylinder plunger contacts with hydraulic actuating cylinder primary seal circle is uniformly distributed with 6 to 8 pressure relief vents.
3. a kind of plunger tpe air booster pump according to claim 2, it is characterized in that: the cylinder plunger outer round surface has hard chromium plating or bright nickel coating.
4. a kind of plunger tpe air booster pump according to claim 1, it is characterized in that: cylinder piston is the stamped steel panel material.
5. a kind of plunger tpe air booster pump according to claim 1, it is characterized in that: mounting bracket is fixed on the cylinder end piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120499260 CN202320268U (en) | 2011-12-05 | 2011-12-05 | Plunger type air booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120499260 CN202320268U (en) | 2011-12-05 | 2011-12-05 | Plunger type air booster pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202320268U true CN202320268U (en) | 2012-07-11 |
Family
ID=46432259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120499260 Expired - Fee Related CN202320268U (en) | 2011-12-05 | 2011-12-05 | Plunger type air booster pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202320268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724626A (en) * | 2015-02-02 | 2015-06-24 | 河南省汇隆精密设备制造有限公司 | Powerful brake device |
| CN108973961A (en) * | 2018-09-27 | 2018-12-11 | 绍兴精致机械制造有限公司 | A kind of air booster |
-
2011
- 2011-12-05 CN CN 201120499260 patent/CN202320268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724626A (en) * | 2015-02-02 | 2015-06-24 | 河南省汇隆精密设备制造有限公司 | Powerful brake device |
| CN108973961A (en) * | 2018-09-27 | 2018-12-11 | 绍兴精致机械制造有限公司 | A kind of air booster |
| CN108973961B (en) * | 2018-09-27 | 2024-03-08 | 绍兴精致机械制造有限公司 | Air booster |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20201205 |