CN209557545U - A kind of vehicle braking pump - Google Patents
A kind of vehicle braking pump Download PDFInfo
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- CN209557545U CN209557545U CN201822225077.5U CN201822225077U CN209557545U CN 209557545 U CN209557545 U CN 209557545U CN 201822225077 U CN201822225077 U CN 201822225077U CN 209557545 U CN209557545 U CN 209557545U
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- rod
- pump housing
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Abstract
The utility model discloses a kind of vehicle braking pumps, including the pump housing and push rod and main piston, the pump housing is equipped with oil inlet and oil outlet, the main piston is located in the cavity of the pump housing, the cavity of the pump housing includes rushing oil pocket and working chamber, the internal diameter for rushing oil pocket is greater than the internal diameter of working chamber, oil inlet is connected with punching press chamber, working chamber is connected with oil outlet, the one end part of the main piston is in working chamber, main piston is equipped with raised piston ring, raised piston ring is matched with the inner wall for rushing oil pocket, the main piston is hollow piston, it is equipped in the cavity of main piston from the check valve that rushes oil pocket and can be connected to working chamber.Vehicle braking pump configuration design rationally, sets up multiple cavities separately in brake pump, be able to satisfy the oil mass of vehicle braking needs, braking operation chamber is smaller with respect to the main cavity of the pump housing, the piston area of corresponding braking operation chamber is small, and for corresponding breaking force with regard to small, brake pedal operation is light.
Description
Technical field
The utility model relates to vehicle brake technology fields, pump more particularly, to a kind of vehicle braking.
Background technique
Tractor brake master cylinder is the constant single-piece piston chamber of internal diameter at present, and the piston being connected with push rod is by cavity one
It is divided into two；There is certain gap between brake disc and friction plate in the braking cavity of vehicle, brake disc and friction when braking
Gap between piece, which is eliminated, to be in contact, and oil enters the clearance space that the elimination is filled in braking cavity in brake pump.
As demand tractor model is increasing, the diameter of brake disc and friction plate is relatively also increasing, braking
Also correspondence becomes larger for discharge capacity between disk and friction plate, and the oil inlet quantity of demand increases when vehicle braking, and the cylinder diameter of brake pump needs thus
Design it is increasing, piston area greatly in requisition for active force with regard to big, brake pedal is heavy, is not easy to brake operating.
Utility model content
In view of the shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a kind of vehicle braking pump, with
Reach that breaking force is small, the purpose of rapid operation.
In order to solve the above-mentioned technical problem, the technology employed by the present utility model is
Vehicle braking pump, including the pump housing and push rod and main piston, the pump housing are equipped with oil inlet and oil outlet, institute
It states main piston to be located in the cavity of the pump housing, the cavity of the pump housing includes rushing oil pocket and working chamber, and the internal diameter for rushing oil pocket is big
In the internal diameter of working chamber, oil inlet is connected with punching press chamber, and working chamber is connected with oil outlet, the one end part of the main piston
In in working chamber, main piston is equipped with raised piston ring, and raised piston ring is matched with the inner wall for rushing oil pocket, and the main piston is
Hollow piston is equipped in the cavity of main piston from the check valve that rushes oil pocket and can be connected to working chamber.
Further, main spring is equipped in the working chamber between the end and pump housing inner end of main piston.
The part that the main piston is located at working chamber is equipped with along axial guide groove, and the pump housing is equipped with to match with guide groove
The positioning bolt of conjunction.
The push-rod piston being connected with push rod is equipped in the pump housing, push-rod piston is connected with the other end of main piston.
The brake pump is two side-by-side fission brake pump, and the working chamber of two brake pumps is by ganging up valve and ganging up pipeline
It is connected；Or cavity there are two side by side is set in the pump housing, the working chambers of two cavitys by gang up valve and be located in the pump housing gang up it is logical
Road is connected.
The check valve is located in main piston and working chamber opposed end, and the end of main piston is equipped with mutually fits with work cavity wall
The end bosses matched are equipped with the side opening for being interlinked to the outside in main piston on main piston between raised piston ring and end bosses.
End cavity is equipped in the pump housing between raised piston ring and push-rod piston, correspondence pushes away in the cavity of main piston
Bar piston is equipped with moveable piston rod, and return spring is equipped between one end and push-rod piston of piston rod, is corresponded on main piston
The other end of piston rod is equipped with the vent for being connected with end cavity, and the other end of piston rod is corresponding with side opening to be set
It sets.
The other end of the piston rod is hollow ends, and hollow ends are connected with oil pocket is rushed, set in the outer rim of piston rod
There is annular groove, annular groove is connected with hollow ends.
The piston rod is hollow structure, leans on push-rod piston end to be equipped with side hole on the main piston, sets in piston rod
Have from end cavity to the check-valves that rushes oil pocket and can be connected.
The main piston is kept off by push-rod piston end equipped with hole, is corresponded to piston rod end on the inside of the gear of hole in main piston and is equipped with
Gasket.
The utility model compared with prior art, has the advantage that
Vehicle braking pump configuration design rationally, sets up multiple cavities separately in brake pump, be able to satisfy the oil of vehicle braking needs
Amount, braking operation chamber is smaller with respect to the main cavity of the pump housing, and the piston area of corresponding braking operation chamber is small, corresponding braking action
For power with regard to small, brake pedal operation is light.
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 the utility model brake pump structural schematic diagram.
Fig. 2 is the split type brake pump schematic diagram of the utility model.
Fig. 3 is the utility model entirety two-chamber brake pump schematic diagram.
Fig. 4 is the utility model along pump shaft line schematic cross-sectional view one.
Fig. 5 is the utility model along pump shaft line schematic cross-sectional view two.
Fig. 6 is the utility model main piston and main spring schematic diagram.
In figure:
1. the pump housing, 2. main pistons, 3. push-rod pistons, 4. piston rods, 5. push rods, 6. sealing rings I, 7. sealing rings II, 8. are main
Spring, 15. are ganged up in spring, 9. positioning bolts, 10. dust covers, 11. plug bolts, 12. switch spacers, 13. return springs, 14.
Valve seals are ganged up, 16. spool is ganged up, 17. gangs up bolt, 18. check valve bolts, 19. check-valve springs, 20. check-valves spiral shells
Bolt, 21. valve springs, 22. nonreturn valve cores, 23. non-return valve cores, 24.O type sealing ring, 25. Composition spacers, 26. gasket seals, 27.
Hole keeps off I, 28. holes and keeps off II, 29. elastic springs, 30. copper backings, 31. oil outlets, 32. oil inlets, 33. gang up valve, 34. gang up pipe
Road, a. rush oil pocket, b. working chamber.
Specific 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 shown in Figures 1 to 6, which pumps, including the pump housing 1 and push rod 5 and main piston 2；The pump housing be equipped with into
Hydraulic fluid port 32 and oil outlet 31, main piston is located in the cavity of the pump housing, and the cavity of the pump housing includes rushing oil pocket a and working chamber b, rushes oil pocket
Internal diameter be greater than the internal diameter of working chamber, oil inlet is connected with punching press chamber, and working chamber is connected with oil outlet, one end of main piston
Portion is located in working chamber, and main piston is equipped with raised piston ring, and raised piston ring is matched with the inner wall for rushing oil pocket, and main piston is
Hollow piston is equipped in the cavity of main piston from the check valve that rushes oil pocket and can be connected to working chamber.
Set up multiple cavities in brake pump separately, the internal diameter for rushing oil pocket is greater than the internal diameter of working chamber, is able to satisfy vehicle braking needs
Oil mass, while braking operation chamber is smaller with respect to the main cavity of the pump housing, and the piston area of corresponding braking operation chamber is small, corresponding
For breaking force with regard to small, brake pedal operation is light.
Brake pump is two side-by-side fission brake pump, and the working chamber of two brake pumps is by ganging up valve 33 and ganging up pipeline 34
It is connected；Or cavity there are two side by side is set in the pump housing, the working chambers of two cavitys by gang up valve and be located in the pump housing gang up it is logical
Road is connected.The effect for ganging up valve is: can work independently when stepping on any one side, one side brake (is used) when tractor steering.Two
When side is stepped on simultaneously, two chambers are ganged up, and guarantee pressure equilibrium not sideslip.
It gangs up valve and oil outlet is disposed side by side on the pump housing and corresponds in the end outer rim of working chamber；Or it gangs up valve and is located at pump housing end
In portion's outer rim, oil outlet is located on the end face of the pump housing；Ganging up valve 33 includes ganging up spool 16 and ganging up valve seals 15, gangs up valve
Core is located in the mounting hole for ganging up valve by ganging up spring 14, and position of mounting hole is corresponded on the pump housing equipped with through-hole, gangs up spool
The end outer rim that inner end is located at main piston in through-hole is corresponding, gangs up valve seals and is located at the outer end face ganged up on spool with through-hole
It is corresponding.
The inner end for ganging up spool is round end structure, convenient for ganging up spool retraction by the promotion of the outer rim of piston；On the pump housing
Ganging up valve mounting hole is threaded hole, gangs up bolt 17 and threaded hole cooperates, gang up between the nut of bolt and screw thread hole end surface and set
There is Composition spacer 25, mounting hole gangs up bolt inner end equipped with hollow hole, and the outer end and helical spring for ganging up spool are located at hollow
It is compact-sized in hole, it is reliable and stable.
Main spring 8 is equipped in working chamber between the end of main piston and pump housing inner end.It is equipped in the pump housing and is connected with push rod
Push-rod piston 3, push-rod piston is connected with the other end of main piston；The cavity of the pump housing is divided into two sections, and one section is arranged by push rod,
Another section is arranged by oil outlet, is greater than another section of cavity internal diameter by oil outlet setting by one section of cavity internal diameter of push rod setting,
Form another section of small chamber of one section big chamber.
The outer end that the pump housing corresponds to push rod 5 is equipped with dust cover 10, and the outer end of push-rod piston 3 is equipped with push rod mounting hole, corresponding
Push rod mounting hole outer edge is equipped with the elastic spring 29 for limiting to push rod, and pump housing end inner edge is equipped with for push-rod piston
The hole gear I 27 of limit, structure is reliable.
Both push-rod piston and raised piston ring are equipped with sealing ring I 6, the end of main piston between the big cavity wall of the pump housing
Equipped with end bosses compatible with work cavity wall, sealing ring II 7 is equipped between end bosses and the small cavity wall of the pump housing；Main work
The outside that plug is located at end bosses is equipped with extended segment, has gap between the outer wall and work cavity wall of extended segment, and extending
Section outer rim, which is equipped with, is used to open the annular protrusion for ganging up valve, and extended segment, which is mainly used for opening, gangs up valve, the main spring of main piston
It is reliable and stable in extended segment.
The extended segment of main piston is equipped with along axial guide groove, and the pump housing is equipped with the positioning bolt matched with guide groove
9, positioning bolt 9 is fixed on the pump housing by copper backing 30 and helicitic texture, and positioning bolt inner end is located in guide groove, prevents from leading
Piston rotates during the work time, guarantees job stability.
The pump housing is correspondingly provided with fabrication hole in the junction of big chamber and small chamber, and corresponding fabrication hole passes through plug bolt 11 and sealing
Gasket 26 seals.
Check valve is located in main piston and working chamber opposed end, and the end of main piston is equipped with compatible with work cavity wall
End bosses are equipped with the side opening for being interlinked to the outside in main piston on main piston between raised piston ring and end bosses.Main work
Respective side nose end is equipped with nonreturn valve core 22 in filling in, and main piston corresponds to working chamber end equipped with check valve bolt, check valve bolt 18
Valve spring 21 is equipped between nonreturn valve core, the middle part of check valve bolt is equipped with through-hole.
End cavity is equipped in the pump housing 1 between raised piston ring and push-rod piston, corresponds to push rod in the cavity of main piston
Piston is equipped with moveable piston rod 4, and return spring 13 is equipped between one end and push-rod piston of piston rod, is corresponded on main piston
The other end of piston rod is equipped with the vent for being connected with end cavity, and the other end of piston rod is corresponding with side opening to be set
It sets.When rushing oil pocket and pushing through oil inlet wherein pressure is excessive, rushing the oil liquid of oil pocket, to will push piston rod mobile to push rod direction, subtracts
Pressure hole, which is opened to rush oil pocket and be connected with end cavity and oil inlet, carries out pressure release.
The other end of piston rod is hollow ends, and hollow ends are connected with oil pocket is rushed, and the outer rim of piston rod is equipped with ring
Connected in star, annular groove are connected with hollow ends by aperture.When piston rod movement keeps annular groove corresponding with vent
It can pressure release.
Main piston is equipped with the hole gear II 28 for limiting to piston rod by push rod inner end, and main piston is interior right on the inside of the gear of hole
It answers piston rod end to be equipped with switch spacer 12, O-ring seal 24 is equipped between the outer rim and main piston cavity of piston rod.
Piston rod is hollow structure, leans on push-rod piston end to be equipped with side hole on main piston, is equipped in piston rod from end
Cavity is to the check-valves that rushes oil pocket and can be connected；Non-return valve core 23 is arranged in piston rod by side nose end, and main work is leaned in piston rod
The side opening end of plug is equipped with check-valves bolt 20, and check-valve spring 19, check-valves spiral shell are equipped between non-return valve core and check-valves bolt
The center of bolt is equipped with through-hole.
Set up multiple cavities in brake pump separately, is able to satisfy the oil mass of vehicle braking needs, master of the braking operation chamber with respect to the pump housing
Cavity is smaller, and the piston area of corresponding braking operation chamber is small, and for corresponding breaking force with regard to small, brake pedal operation is light.
It above are only and above-mentioned technical characteristic can form multiple in any combination to be illustrated to the utility model preferred embodiment
The embodiments of the present invention scheme.
The utility model is exemplarily described above in conjunction with attached drawing, it is clear that the utility model specific implementation not by
The limitation of aforesaid way, as long as the improvement for the various unsubstantialities that the conception and technical scheme for using the utility model carry out,
Or it is not improved the conception and technical scheme of the utility model are directly applied into other occasions, in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of vehicle braking pump, including the pump housing and push rod and main piston, the pump housing are equipped with oil inlet and oil outlet, institute
It states main piston to be located in the cavity of the pump housing, it is characterised in that: the cavity of the pump housing includes rushing oil pocket and working chamber, the punching oil
The internal diameter of chamber is greater than the internal diameter of working chamber, and oil inlet is connected with punching press chamber, and working chamber is connected with oil outlet, the main piston
One end part in working chamber, main piston is equipped with raised piston ring, and raised piston ring is matched with the inner wall for rushing oil pocket, institute
Stating main piston is hollow piston, is equipped in the cavity of main piston from the check valve that rushes oil pocket and can be connected to working chamber.
2. vehicle braking pump as described in claim 1, it is characterised in that: the end of main piston and pump housing inner end in the working chamber
Main spring is equipped between portion.
3. vehicle braking pump as described in claim 1, it is characterised in that: the part that the main piston is located at working chamber is equipped with edge
Axial guide groove, the pump housing are equipped with the positioning bolt matched with guide groove.
4. vehicle braking pump as described in claim 1, it is characterised in that: it is living to be equipped with the push rod being connected with push rod in the pump housing
Plug, push-rod piston are connected with the other end of main piston.
5. vehicle braking pump as described in claim 1, it is characterised in that: the brake pump is two side-by-side fission brake pump,
The working chamber of two brake pumps is connected by ganging up valve with pipeline is ganged up；Or set in the pump housing there are two cavity side by side, two cavitys
Working chamber is connected by ganging up valve with the channel of ganging up being located in the pump housing.
6. vehicle braking pumps as described in claim 1 or 4, it is characterised in that: the check valve is located at main piston and working chamber phase
To in end, the end of main piston is equipped with end bosses compatible with work cavity wall, at raised piston ring and end on main piston
The side opening for being interlinked to the outside in main piston is equipped between portion's protrusion.
7. vehicle braking as claimed in claim 6 pump, it is characterised in that: in the pump housing raised piston ring and push-rod piston it
Between be equipped with end cavity, push-rod piston correspond in the cavity of main piston and is equipped with moveable piston rod, one end of piston rod with push away
Return spring is equipped between bar piston, the other end that piston rod is corresponded on main piston is equipped with to be subtracted for what is be connected with end cavity
Press hole, the setting corresponding with side opening of the other end of piston rod.
8. vehicle braking pump as claimed in claim 7, it is characterised in that: the other end of the piston rod is hollow ends, hollow
End is connected with oil pocket is rushed, and the outer rim of piston rod is equipped with annular groove, and annular groove is connected with hollow ends.
9. vehicle braking as claimed in claim 7 pump, it is characterised in that: the piston rod is hollow structure, on the main piston
It is equipped with side hole by push-rod piston end, is equipped in piston rod from end cavity to the check-valves that rushes oil pocket and can be connected.
10. vehicle braking pump as claimed in claim 9, it is characterised in that: the main piston is kept off by push-rod piston end equipped with hole,
Piston rod end is corresponded to equipped with gasket on the inside of the gear of hole in main piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822225077.5U CN209557545U (en) | 2018-12-28 | 2018-12-28 | A kind of vehicle braking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822225077.5U CN209557545U (en) | 2018-12-28 | 2018-12-28 | A kind of vehicle braking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557545U true CN209557545U (en) | 2019-10-29 |
Family
ID=68304233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822225077.5U Active CN209557545U (en) | 2018-12-28 | 2018-12-28 | A kind of vehicle braking pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209557545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704569A (en) * | 2022-04-18 | 2022-07-05 | 浙江奔腾智能制动系统有限公司 | Novel reducing plunger type brake master cylinder |
-
2018
- 2018-12-28 CN CN201822225077.5U patent/CN209557545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704569A (en) * | 2022-04-18 | 2022-07-05 | 浙江奔腾智能制动系统有限公司 | Novel reducing plunger type brake master cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vehicle brake pump Effective date of registration: 20201229 Granted publication date: 20191029 Pledgee: Wuhu Beijing Road sub branch of Huishang Bank Co.,Ltd. Pledgor: WUHU WENLE BRAKING SYSTEM Co.,Ltd. Registration number: Y2020980010068 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |