CN207246283U - A kind of clutch boost pump - Google Patents

A kind of clutch boost pump Download PDF

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Publication number
CN207246283U
CN207246283U CN201721298334.7U CN201721298334U CN207246283U CN 207246283 U CN207246283 U CN 207246283U CN 201721298334 U CN201721298334 U CN 201721298334U CN 207246283 U CN207246283 U CN 207246283U
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China
Prior art keywords
valve seat
pressure
piston
main
power
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Active
Application number
CN201721298334.7U
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Chinese (zh)
Inventor
潘高峰
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WUHU WENLE BRAKING SYSTEM CO Ltd
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WUHU WENLE BRAKING SYSTEM CO Ltd
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Priority to CN201721298334.7U priority Critical patent/CN207246283U/en
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Abstract

The utility model discloses a kind of clutch boost pump, 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, further include pressure release valve seat and pressure reducing valve, pressure release valve seat is 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, which is equipped with, to be used to connect the wing passage 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 cost is low.

Description

A kind of clutch boost pump
Technical field
Vehicle booster technical field is the utility model is related to, more particularly, to a kind of clutch boost pump.
Background technology
Current clutch boost pump itself coordinates electronic valve and pressure reducing valve to use, pipeline connects more peace without pressure reducing valve Fill cumbersome, cost is higher.Clutch boost pump produces high pressure power-assisted using vehicle oil pump more, influences vehicle using vehicle hydraulic clutch System oil pressure.
Utility model content
In view of the shortcomings of the prior art, technical problem to be solved in the utility model is to provide a kind of clutch boost pump, with Reach pressure reducing valve to be integrated on boost pump, easy for installation, the low purpose of cost.
In order to solve the above-mentioned technical problem, technical solution is used by the utility model:
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, for the pressure release valve seat in main pump body between oil outlet and overflow port, the main piston and pressure release valve seat are hollow Structure, one end activity of main piston are 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 for connecting the wing passage 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 with 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 communicated with pressure release valve seat.
Main spring is equipped between pressure release valve seat and main piston in the working chamber.
The pressure release valve seat is equipped with the check-valves for being used 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 raised piston ring, is working chamber between piston ring and pressure release valve seat side, relief valve Spill cavity is formed between seat opposite 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 with annular groove and is used for Pressure relief valve seat return Return spring.
The Pressure relief valve seat bolt of thread fitting is equipped with the Pressure relief valve seat, through hole, through hole are equipped with Pressure relief valve seat bolt One end is engaged 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 is equipped with Pressure relief valve seat connected end and realizes power-assisted chamber The interface channel being connected with inside Pressure relief valve seat.
The utility model compared with prior art, has the following advantages:The boost pump is reasonable in design, is not separately provided Electronics pressure reducing valve, but mechanical relief valve is integrated in the inside of boost pump, occupy little space, without pipeline connection easy to peace Dress, cost are greatly reduced in the past relatively.
Brief description of the drawings
The content expressed by each width attached drawing of this specification and the mark in figure are briefly described below:
Fig. 1 is the utility model boost pump structure diagram.
Fig. 2 is the utility model boost pump schematic cross-sectional view.
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 types circle I, 23.O types circle II, 24. locking bolts, 25. oil inlets, 26. oil outlets, 27. overflow ports, 28. techniques Hole.
Embodiment
Below against attached drawing, by the description of the embodiment, making to specific embodiment of the present utility model further detailed Thin 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 12nd, 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 is located in push rod cover for seat 2, and push-rod piston is moved 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 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 Move and be 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 is corresponding with one end of main piston.
Main pump body 1 is equipped with oil inlet 25 and oil outlet 26 and overflow port 27, and oil inlet is set by end cover side, oil outlet Set 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 raised piston ring, between piston ring and pressure release valve seat side For working chamber, spill cavity is formed between pressure release valve seat opposite 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, is installed easy to parts in main pump body.Pressure release valve seat outer rim and main pump body Inner wall between be equipped with sealing ring, sealing ring is equipped between the inner wall of pressure release valve seat and matched main piston end outer wall side by side III 16 and O-ring I 22.
Pressure release valve seat 7 is equipped with the check-valves 20 for being used 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 to realize that power-assisted chamber is connected with overflow port when power-assisted cavity pressure is excessive, 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 is positioned at letting out In pressure valve seat one end, the pressure release valve seat other end is connected with overflow port, and main piston, which is equipped with, to be used to connect 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, and pressure reducing valve is with pushing away Bar piston be connected power-assisted pump work when pressure reducing valve sealing 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 positioned at master In piston, the stepped hole opposite with Pressure relief valve seat one end is equipped with 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 Communicate.
Main spring 18 is equipped between pressure release valve seat and main piston in working chamber, main spring one end is sleeved on main piston, main The spring other end is sleeved 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.
The Pressure relief valve seat bolt 11 of thread fitting is equipped with Pressure relief valve seat 5, through hole, through hole are equipped with Pressure relief valve seat bolt 11 One end is engaged 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 It is equipped with Pressure relief valve seat connected end and realizes power-assisted chamber and the interface channel being connected inside Pressure relief valve seat.
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 of push-rod piston be equipped with hollow boss, thread fitting 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 sleeved on cylinder On, Pressure relief valve seat bolt is engaged by external screw thread with the internal 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 so as to depressurize threshold values.In power-assisted chamber Hydraulic fluid pressure it is excessive when, hydraulic oil active force is acted on cone point, promotes the movement of pressure reducing valve point and Pressure relief valve seat spiral shell The through hole separation of bolt, makes power-assisted chamber 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 Beginning, position was when being failure to actuate, and hydraulic oil passes through between the wing passage on power-assisted chamber, main piston and 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 be moved in main piston, and Pressure relief valve seat will be main The internal hollow channel sealing of piston, enters power-assisted chamber high pressure oil by oil inlet and push-rod piston promotes main piston to move together Dynamic, main piston extrudes the hydraulic oil in working chamber, and the hydraulic oil to refuel in working chamber works into clutch slave cylinder power-assisted.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model implement and from The limitation of aforesaid way, as long as employing the improvement of the various unsubstantialities of the design and technical solution progress of the utility model, Or not improved the design of the utility model and technical solution are directly applied into other occasions, the guarantor in the utility model Within the scope of shield.

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, which is equipped with, to be used to connect the wing passage inside power-assisted chamber and main piston;Pressure reducing valve is located at boost pump in main piston Power-assisted chamber is connected with overflow port when not working, pressure reducing valve be connected with push-rod piston power-assisted pump work when pressure reducing valve sealing main piston Internal hollow channel.
2. clutch boost pump as claimed in claim 1, it is characterised in that:The pressure reducing valve includes pressure reducing valve point and pressure-relief valve spring It is equipped with and hollow Pressure relief valve seat, the Pressure relief valve seat are located in main piston, 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 is communicated with pressure release valve seat.
3. clutch boost pump as claimed 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 claimed in claim 1, it is characterised in that:The pressure release valve seat, which is equipped with, to be used to supplement 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 claimed in claim 1, it is characterised in that:The push rod cover for seat is fixed on main pump body end by end cap Portion, the end of push rod cover for seat are equipped with dust cover.
6. clutch boost pump as claimed in claim 1, it is characterised in that:The main piston is equipped with raised piston ring, piston It is working chamber between ring and pressure release valve seat side, spill cavity, spill cavity is formed between pressure release valve seat opposite 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 what is 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:The pressure reducing valve of thread fitting is equipped with 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 engaged 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 Pressure relief valve seat connected end and realizes power-assisted chamber and the interface channel being connected inside Pressure relief valve seat.
CN201721298334.7U 2017-10-10 2017-10-10 A kind of clutch boost pump Active CN207246283U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721298334.7U CN207246283U (en) 2017-10-10 2017-10-10 A kind of clutch boost pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721298334.7U CN207246283U (en) 2017-10-10 2017-10-10 A kind of clutch boost pump

Publications (1)

Publication Number Publication Date
CN207246283U true CN207246283U (en) 2018-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721298334.7U Active CN207246283U (en) 2017-10-10 2017-10-10 A kind of clutch boost pump

Country Status (1)

Country Link
CN (1) CN207246283U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107504097A (en) * 2017-10-10 2017-12-22 芜湖稳乐制动系统有限公司 Clutch boost pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107504097A (en) * 2017-10-10 2017-12-22 芜湖稳乐制动系统有限公司 Clutch boost pump
CN107504097B (en) * 2017-10-10 2019-01-11 芜湖稳乐制动系统有限公司 Clutch boost pump

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