CN107504097B - Clutch boost pump - Google Patents
Clutch boost pump Download PDFInfo
- Publication number
- CN107504097B CN107504097B CN201710935721.5A CN201710935721A CN107504097B CN 107504097 B CN107504097 B CN 107504097B CN 201710935721 A CN201710935721 A CN 201710935721A CN 107504097 B CN107504097 B CN 107504097B
- Authority
- CN
- China
- Prior art keywords
- valve seat
- pressure
- main
- piston
- relief valve
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D48/04—Control by fluid pressure providing power assistance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of clutch boost pumps, including main pump body, main piston, push-rod piston and push rod cover for seat, ram seat is set in main pump body end, push-rod piston and main piston are oppositely arranged in main pump body, main pump body is equipped with oil inlet and oil outlet and overflow port, main piston will be divided into power-assisted chamber and working chamber in main pump body, oil inlet is connected with power-assisted chamber, oil outlet is connected with working chamber, it further include pressure release valve seat and pressure reducing valve, pressure release valve seat in main pump body between oil outlet and overflow port, main piston and pressure release valve seat are hollow structure, one end activity of main piston is located in relief valve seat one end, the pressure release valve seat other end is connected with overflow port, main piston is equipped with the wing passage for being connected to inside power-assisted chamber and main piston；Power-assisted chamber is connected with overflow port when pressure reducing valve is located at power-assisted air pump inoperative in main piston, pressure reducing valve be connected with push-rod piston power-assisted pump work when pressure reducing valve sealing main piston internal hollow channel.Simple installation is at low cost.
Description
Technical field
The present invention relates to vehicle booster technical fields, more particularly, to a kind of clutch boost pump.
Background technique
Current clutch boost pump itself cooperates electronic valve and pressure reducing valve to use, the more peace of piping connection without pressure reducing valve
Fill cumbersome, higher cost.Clutch boost pump utilizes vehicle oil pump to generate high pressure power-assisted more, influences vehicle using vehicle hydraulic clutch
System oil pressure.
Summary of the invention
In view of the shortcomings of the prior art, technical problem to be solved by the invention is to provide a kind of clutch boost pumps, to reach
Pressure reducing valve is integrated on boost pump, easy for installation, purpose at low cost.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is as follows:
The clutch boost pump, including main pump body, main piston, push-rod piston and push rod cover for seat, the ram seat are set in
Main pump body end, the push-rod piston and main piston are oppositely arranged in main pump body, and the main pump body is equipped with oil inlet and goes out
Hydraulic fluid port and overflow port, main piston will be divided into power-assisted chamber and working chamber in main pump body, oil inlet is connected with power-assisted chamber, oil outlet
It is connected with working chamber, the decompression that power-assisted chamber is connected with overflow port is realized when further including pressure release valve seat and excessive power-assisted cavity pressure
Valve, the pressure release valve seat is between oil outlet and overflow port, the main piston and pressure release valve seat are hollow in main pump body
One end activity of structure, main piston is located in relief valve seat one end, and the pressure release valve seat other end is connected with overflow port, on main piston
Equipped with the wing passage for being connected to inside power-assisted chamber and main piston；Power-assisted chamber when pressure reducing valve is located at power-assisted air pump inoperative in main piston
Be connected with overflow port, pressure reducing valve be connected with push-rod piston power-assisted pump work when pressure reducing valve sealing main piston internal hollow channel.
Further, the pressure reducing valve includes pressure reducing valve point and pressure-relief valve spring and hollow Pressure relief valve seat, described to subtract
Pressure valve seat is located in main piston, and the stepped hole opposite with Pressure relief valve seat one end, pressure reducing valve point and pressure reducing valve bullet are equipped in main piston
Spring is respectively positioned in Pressure relief valve seat, and pressure reducing valve point one end is connected with power-assisted chamber, and the pressure reducing valve point other end is connected with pressure-relief valve spring
And it is communicated with pressure release valve seat.
Main spring is equipped in the working chamber between pressure release valve seat and main piston.
The pressure release valve seat is equipped with the check-valves for supplementing hydraulic oil in working chamber, check-valves one end and working chamber phase
Connection, the check-valves other end are connected with overflow port.
The push rod cover for seat is fixed on main pump body end by end cap, and the end of push rod cover for seat is equipped with dust cover.
The main piston is equipped with the piston ring of protrusion, is working chamber, relief valve between piston ring and pressure release valve seat side
Spill cavity is formed between the seat other side and main pump body bottom, spill cavity is connected with overflow port.
The Pressure relief valve seat is equipped with the annular groove being connected with wing passage, is equipped in annular groove and is used for Pressure relief valve seat return
Return spring.
It is equipped with the Pressure relief valve seat bolt being threadedly engaged in the Pressure relief valve seat, is equipped with through-hole, through-hole in Pressure relief valve seat bolt
One end is matched with pressure reducing valve point, and the through-hole other end is connected with power-assisted chamber.
The push-rod piston is connected with Pressure relief valve seat, and the push-rod piston and Pressure relief valve seat connected end are equipped with and realize power-assisted chamber
The interface channel being connected with inside Pressure relief valve seat.
Compared with prior art, the present invention having the advantage that the boost pump is reasonable in design, electronics is not separately provided
Pressure reducing valve, but mechanical relief valve is integrated in the inside of boost pump, it occupies little space, is easily installed without piping connection, at
This is greatly reduced in the past relatively.
Detailed description of the invention
Content expressed by each width attached drawing of this specification and the label in figure are briefly described below:
Fig. 1 is boost pump structural schematic diagram of the present invention.
Fig. 2 is boost pump schematic cross-sectional view of the present invention.
In figure:
1. main pump body, 2. push rod cover for seat, 3. main pistons, 4. dust covers, 5. Pressure relief valve seats, 6. end caps, 7. pressure release valve seats, 8.
Push-rod piston, 9. pressure-relief valve springs, 10. pressure reducing valves point, 11. Pressure relief valve seat bolts, 12. holes shelves, 13. gaskets, 14. sealing rings I,
15. sealing ring II, 16. sealing rings III, 17. sealing rings IV, 18. main springs, 19. return springs, 20. check-valves, 21. check-valves
Bolt, 22.O type circle I, 23.O type circle II, 24. locking bolts, 25. oil inlets, 26. oil outlets, 27. overflow ports, 28. techniques
Hole.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation.
As depicted in figs. 1 and 2, the clutch boost pump, including main pump body 1, push rod cover for seat 2, main piston 3, dust cover 4, subtract
Pressure valve seat 5, end cap 6, pressure release valve seat 7, push-rod piston 8, pressure-relief valve spring 9, pressure reducing valve point 10, Pressure relief valve seat bolt 11, hole shelves
12, gasket 13, sealing ring I 14, sealing ring II 15, sealing ring III 16, sealing ring IV 17, main spring 18, return spring 19, non-return
Valve 20, check-valves bolt 21, O-ring I 22, O-ring II 23, locking bolt 24, oil inlet 25, oil outlet 26, overflow port 27 with
And fabrication hole 28.
Push rod cover for seat 2 is fixed on 1 end of main pump body by end cap, passes through 24 phase of locking bolt between end cap 6 and main pump body
Even, push-rod piston 8 is movable to be located in push rod cover for seat 2, and push-rod piston is removable along push rod cover for seat axis direction, push-rod piston
Outer end is connected with the push rod on clutch pedal, and is equipped with dust cover 4 in the end of push rod cover for seat, prevents dust from entering push rod cover for seat
In.
The inner end of push rod cover for seat 2 is located in main pump body, is equipped between the inner end edge of push rod cover for seat and the inner wall of main pump body
Sealing ring IV 17 is equipped with O-ring II 23 and sealing ring II 15 side by side between the inner wall and push-rod piston of push rod cover for seat.Main piston can
It moves and is arranged in main pump body along the axis direction of main pump body, push-rod piston and main piston are oppositely arranged in main pump body, that is, are pushed away
One end of bar piston and one end of main piston are corresponding.
Main pump body 1 is equipped with oil inlet 25 and oil outlet 26 and overflow port 27, and oil inlet is arranged by end cover side, oil outlet
It is arranged with overflow port by main pump body bottom.Main piston will be divided into power-assisted chamber and working chamber, oil inlet and power-assisted chamber phase in main pump body
Connection, oil outlet are connected with working chamber；Main piston 3 is equipped with the piston ring of protrusion, between piston ring and pressure release valve seat side
For working chamber, spill cavity is formed between the pressure release valve seat other side and main pump body bottom, spill cavity is connected with overflow port.
The bottom of main pump body 1 is equipped with fabrication hole 28, convenient for components installation in main pump body.Pressure release valve seat outer rim and main pump body
Inner wall between be equipped with sealing ring, between the inner wall of pressure release valve seat and the main piston end outer wall matched side by side be equipped with sealing ring
III 16 and O-ring I 22.
Pressure release valve seat 7 is equipped with the check-valves 20 for supplementing hydraulic oil in working chamber, check-valves one end and working chamber phase
Connection, the check-valves other end are connected with overflow port, and check-valves is fixed on pressure release valve seat by check-valves bolt 21.
Pressure reducing valve is used for the realization power-assisted chamber when power-assisted cavity pressure is excessive and is connected with overflow port, and pressure release valve seat is in main pump body
Interior main piston and pressure release valve seat are hollow structure between oil outlet and overflow port, and one end activity of main piston, which is located at, lets out
In pressure valve seat one end, the pressure release valve seat other end is connected with overflow port, and main piston is equipped with for being connected to power-assisted chamber and main piston
Internal wing passage；Power-assisted chamber is connected with overflow port when pressure reducing valve is located at power-assisted air pump inoperative in main piston, pressure reducing valve with push away
Bar piston be connected power-assisted pump work when pressure reducing valve seal main piston internal hollow channel.
Pressure reducing valve includes pressure reducing valve point 10 and pressure-relief valve spring 9 and hollow Pressure relief valve seat 5, and Pressure relief valve seat 5 is located at master
In piston, the stepped hole opposite with Pressure relief valve seat one end is equipped in main piston 3, pressure reducing valve point and pressure-relief valve spring are respectively positioned on decompression
In valve seat, pressure reducing valve point one end is connected with power-assisted chamber, the pressure reducing valve point other end be connected with pressure-relief valve spring and with pressure release valve seat
It communicates.
Main spring 18 is equipped in working chamber between pressure release valve seat and main piston, one end cap of main spring is main on main piston
Another end cap of spring is on pressure release valve seat.Pressure relief valve seat is equipped with the annular groove being connected with wing passage, is equipped with and uses in annular groove
In the return spring 19 of Pressure relief valve seat return.
It is equipped with the Pressure relief valve seat bolt 11 being threadedly engaged in Pressure relief valve seat 5, is equipped with through-hole, through-hole in Pressure relief valve seat bolt 11
One end is matched with pressure reducing valve point, and the through-hole other end is connected with power-assisted chamber.Push-rod piston is connected with Pressure relief valve seat, push-rod piston
The interface channel realized and be connected inside power-assisted chamber and Pressure relief valve seat is equipped with Pressure relief valve seat connected end.
The outer rim of the raised piston ring of main piston is equipped with sealing ring I 14, and main piston is equipped with hole shelves by push-rod piston end
12 and gasket 13, the inner end of push-rod piston is equipped with hollow boss, is threadedly engaged between hollow boss outer rim and Pressure relief valve seat inner wall.
One end of pressure reducing valve point 10 is cone point, and the other end of pressure reducing valve point is cylinder, and pressure-relief valve spring is covered in cylinder
On, Pressure relief valve seat bolt is matched by external screw thread with the internal screw thread on Pressure relief valve seat inner wall, by adjusting Pressure relief valve seat bolt
Position in Pressure relief valve seat is adjusted the decrement of pressure-relief valve spring, is adjusted to depressurize threshold values.In power-assisted chamber
Hydraulic fluid pressure it is excessive when, hydraulic oil active force acts on cone point, pushes pressure reducing valve point mobile and Pressure relief valve seat spiral shell
The through-hole of bolt separates, and power-assisted chamber is made to be connected with spill cavity, realizes decompression.
Oil inlet is connected with the steering wheel overflow port of vehicle, and oil outlet is connected with clutch slave cylinder oil inlet oil return opening, clutch
The piston rod of wheel cylinder is connected with gearbox, and the overflow port of boost pump is connected with the hydraulic oil container of steering wheel.Clutch pedal is in just
When beginning position is failure to actuate, hydraulic oil is by power-assisted chamber, the wing passage on main piston and between Pressure relief valve seat and main piston inner wall
Gap passes to overflow port.When clutch pedal acts, push-rod piston drives Pressure relief valve seat to move in main piston, and Pressure relief valve seat will be led
The internal hollow channel of piston seals, and enters power-assisted chamber high pressure oil and push-rod piston by oil inlet and pushes main piston to move together
Dynamic, main piston squeezes the hydraulic oil in working chamber, and the hydraulic oil to refuel in working chamber enters the work of clutch slave cylinder power-assisted.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, if use the improvement for the various unsubstantialities that conception and technical scheme of the invention carry out, or it is not improved will
Conception and technical scheme of the invention directly apply to other occasions, within the scope of the present invention.
Claims (9)
1. a kind of clutch boost pump, including main pump body, main piston, push-rod piston and push rod cover for seat, the ram seat are set in
Main pump body end, the push-rod piston and main piston are oppositely arranged in main pump body, and the main pump body is equipped with oil inlet and goes out
Hydraulic fluid port and overflow port, main piston will be divided into power-assisted chamber and working chamber in main pump body, oil inlet is connected with power-assisted chamber, oil outlet
It is connected with working chamber, it is characterised in that: power-assisted chamber and overflow port are realized when further including pressure release valve seat and excessive power-assisted cavity pressure
The pressure reducing valve being connected, the pressure release valve seat in main pump body between oil outlet and overflow port, the main piston and pressure release
Valve seat is hollow structure, and one end activity of main piston is located in relief valve seat one end, the pressure release valve seat other end and overflow port phase
Connection, main piston are equipped with the wing passage for being connected to inside power-assisted chamber and main piston；Pressure reducing valve is located in main piston, boost pump
Power-assisted chamber is connected with overflow port when not working, and pressure reducing valve is connected with push-rod piston, and pressure reducing valve seals main work when power-assisted pump work
Fill in internal hollow channel；Main piston can be moved along the axis direction of main pump body to be arranged in main pump body.
2. clutch boost pump as described in claim 1, it is characterised in that: the pressure reducing valve includes pressure reducing valve point and pressure-relief valve spring
And hollow Pressure relief valve seat, the Pressure relief valve seat are located in main piston, are equipped in main piston opposite with Pressure relief valve seat one end
Stepped hole, pressure reducing valve point and pressure-relief valve spring are respectively positioned in Pressure relief valve seat, and pressure reducing valve point one end is connected with power-assisted chamber, pressure reducing valve
The sharp other end is connected with pressure-relief valve spring and communicates with pressure release valve seat.
3. clutch boost pump as described in claim 1, it is characterised in that: in the working chamber between pressure release valve seat and main piston
Equipped with main spring.
4. clutch boost pump as described in claim 1, it is characterised in that: the pressure release valve seat is equipped with for supplementing in working chamber
The check-valves of hydraulic oil, check-valves one end are connected with working chamber, and the check-valves other end is connected with overflow port.
5. clutch boost pump as described in claim 1, it is characterised in that: the push rod cover for seat is fixed on main pump body end by end cap
The end in portion, push rod cover for seat is equipped with dust cover.
6. clutch boost pump as described in claim 1, it is characterised in that: the main piston is equipped with the piston ring of protrusion, piston
It is working chamber between ring and pressure release valve seat side, forms spill cavity, spill cavity between the pressure release valve seat other side and main pump body bottom
It is connected with overflow port.
7. clutch boost pump as claimed in claim 2, it is characterised in that: the Pressure relief valve seat is equipped with to be connected with wing passage
Annular groove, the interior return spring being equipped with for Pressure relief valve seat return of annular groove.
8. clutch boost pump as claimed in claim 2, it is characterised in that: be equipped with the pressure reducing valve being threadedly engaged in the Pressure relief valve seat
Seat bolt, Pressure relief valve seat bolt is interior to be equipped with through-hole, and through-hole one end is matched with pressure reducing valve point, and the through-hole other end is connected with power-assisted chamber
It is logical.
9. clutch boost pump as claimed in claim 8, it is characterised in that: the push-rod piston is connected with Pressure relief valve seat, described to push away
Bar piston is equipped with the interface channel realized and be connected inside power-assisted chamber and Pressure relief valve seat with Pressure relief valve seat connected end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935721.5A CN107504097B (en) | 2017-10-10 | 2017-10-10 | Clutch boost pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935721.5A CN107504097B (en) | 2017-10-10 | 2017-10-10 | Clutch boost pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504097A CN107504097A (en) | 2017-12-22 |
| CN107504097B true CN107504097B (en) | 2019-01-11 |
Family
ID=60701114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710935721.5A Active CN107504097B (en) | 2017-10-10 | 2017-10-10 | Clutch boost pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504097B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404447B (en) * | 2018-12-28 | 2024-03-08 | 芜湖稳乐制动系统有限公司 | Vehicle brake pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6299215A (en) * | 1985-10-28 | 1987-05-08 | Hino Motors Ltd | Automatic clutch control device |
| DE10085371B4 (en) * | 1999-12-29 | 2010-02-04 | Kongsberg Automotive Asa | booster |
| CN101796317A (en) * | 2007-09-20 | 2010-08-04 | 卢克摩擦片和离合器两合公司 | Hydraulic element |
| CN106740095A (en) * | 2016-11-25 | 2017-05-31 | 合肥协力液压科技有限公司 | A kind of hydraulic booster |
| CN207246283U (en) * | 2017-10-10 | 2018-04-17 | 芜湖稳乐制动系统有限公司 | A kind of clutch boost pump |
-
2017
- 2017-10-10 CN CN201710935721.5A patent/CN107504097B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6299215A (en) * | 1985-10-28 | 1987-05-08 | Hino Motors Ltd | Automatic clutch control device |
| DE10085371B4 (en) * | 1999-12-29 | 2010-02-04 | Kongsberg Automotive Asa | booster |
| CN101796317A (en) * | 2007-09-20 | 2010-08-04 | 卢克摩擦片和离合器两合公司 | Hydraulic element |
| CN106740095A (en) * | 2016-11-25 | 2017-05-31 | 合肥协力液压科技有限公司 | A kind of hydraulic booster |
| CN207246283U (en) * | 2017-10-10 | 2018-04-17 | 芜湖稳乐制动系统有限公司 | A kind of clutch boost pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107504097A (en) | 2017-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107504097B (en) | Clutch boost pump | |
| CN207246283U (en) | A kind of clutch boost pump | |
| CN207261508U (en) | Clutch force aid system | |
| US3269409A (en) | Check valve for use with a master cylinder | |
| CN208203849U (en) | A kind of clutch power-assisted master cylinder | |
| CN104176028A (en) | Brake master cylinder | |
| CN207120740U (en) | A kind of master cylinder and its brakes | |
| CN106740776A (en) | A kind of row parking braking combined supercharging device | |
| CN111005949A (en) | Power-assisted oil cylinder and clutch power-assisted system thereof | |
| CN103148122A (en) | Clutch master pump and clutch assembly equipped with clutch master pump | |
| CN203214707U (en) | Clutch master pump and clutch assembly provided with same | |
| CN201613890U (en) | Brake master cylinder assembly for automobile | |
| CN105599742B (en) | Hydraulic brake booster for vehicle | |
| US9851005B2 (en) | Actuator with screw-in gland and detent structure | |
| CN202451514U (en) | Mechanical locking hydraulic cylinder | |
| CN211642492U (en) | Hydraulic braking anti-lock system of all-terrain vehicle | |
| CN103270299A (en) | Piston pump having a cylinder barrel | |
| CN213744610U (en) | Plunger type clutch master cylinder structure with cylinder sleeve | |
| CN105221515B (en) | A kind of integrated hydraulic cylinder with two-way travel limitation | |
| CN202251552U (en) | Vehicle clutch booster with integrated breathing structure | |
| CN108443356A (en) | Clutch power-assisted master cylinder | |
| CN206812985U (en) | A kind of row parking braking combined supercharging device | |
| CN205365574U (en) | Single cylinder two -chamber formula brake master cylinder | |
| CN205654734U (en) | Clutch master cylinder assembly | |
| CN202690585U (en) | Self-locking device for oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |