CN202429195U - Load sensing proportioning valve - Google Patents
Load sensing proportioning valve Download PDFInfo
- Publication number
- CN202429195U CN202429195U CN2012200160350U CN201220016035U CN202429195U CN 202429195 U CN202429195 U CN 202429195U CN 2012200160350 U CN2012200160350 U CN 2012200160350U CN 201220016035 U CN201220016035 U CN 201220016035U CN 202429195 U CN202429195 U CN 202429195U
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- load sensing
- sense
- spring
- flake
- carried
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- Expired - Fee Related
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- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model provides a load sensing proportioning valve, which comprises a valve body assembly, a load sensing rod assembly, a load sensing spring and a load sensing spring bottom bracket, wherein one end of the load sensing rod assembly is connected with the valve body assembly, and the other end of the load sensing rod assembly is connected with a first end of the load sensing spring; the second end of the load sensing spring is connected with the load sensing spring bottom bracket and is provided with a hook-shaped part; and the load sensing spring bottom bracket comprises a transverse rod; and the hook body of the hook-shaped part passes by the transverse rod and then extends towards the load sensing spring to form a sliding chute for preventing the transverse rod from separating. According to the load sensing proportioning valve provided by the utility model, firm hooking of the load sensing spring bottom bracket and the load sensing spring can be guaranteed; even if an automobile runs on a bumpy pavement and the body of the automobile bumps violently, the load sensing spring bottom bracket and the load sensing spring do not separate from each other so as to guarantee the safety in running.
Description
Technical field
The utility model relates to a kind of device of regulating wheel braking force with the variation that adapts to vehicle or pavement conditions, particularly relates to a kind of load sensing valve.
Background technology
Automobile zero load and at full load, the braking force ratio during front and back wheel generation locking can change.Like this, just require the braking force ratio of front and back wheel also to want corresponding the adjustment.Load sensing valve is exactly a kind ofly to be used to regulate automobile front and back wheel braking force and to guarantee at automobile emergency glancing impact trailing wheel not prior to the device of front-wheel locking.In essence, load sensing valve is a cover hydro-mechanical unit.As shown in Figure 1, it generally includes valve body assembly 1, bolt 2, pressure spring 3, sense year bar assembly 4, spring 5 is carried in sense and spring bottom bracket 6 is carried in sense.Wherein, the fuel feed hole of valve body assembly 1 communicates with the oil outlet of the master brake cylinder of automobile, and the oil outlet of valve body assembly 1 communicates with the brake cylinder that is used for braking rear-wheel of automobile.Valve body assembly 1 passes through bolt on the body platform support.Sense is carried spring bottom bracket 6 and is passed through bolt on the back axle mounting bracket of automobile.Thus, vehicle body and back axle link together through load sensing valve.
When automobile was unloaded, the application force that back axle receives was little, and the elongation of feeling year spring 5 is bigger, and sense is carried spring 5 and reached a force balance with pressure spring 3 and valve body assembly 1 interior little spring and the interior hydraulic pressure difference of valve body.When brake fluid pressure met or exceeded zero load design flex point hydraulic pressure, load sensing valve distributed the front and back brake fluid pressure, makes the front and back wheel braking force be tending towards reasonable.When the automobile bearing load, it is big that the application force that back axle receives becomes, and the elongation of feeling year spring 5 diminishes, and sense is carried spring 5 and reached a new force balance with pressure spring 3 and valve body assembly 1 interior little spring and the interior hydraulic pressure difference of valve body.When brake fluid pressure met or exceeded fully loaded design flex point hydraulic pressure, load sensing valve distributed the front and back brake fluid pressure, makes the front and back wheel braking force be tending towards reasonable.According to the difference of loading mass, the elongation that spring 5 is carried in sense can carry out respective change, and the hydraulic pressure of load sensing valve distributes flex point, adjusts accordingly.Automobile front and back wheel braking force is adjusted thus, and in vehicle traveling process, the load sensing valve duty cycle operation makes the hydraulic pressure of brake cylinder constantly obtain adjustment, has also promptly constantly adjusted the front and back wheel braking force.
In the load sensing valve of said structure, the lower end that spring 5 is carried in sense is provided with crotch, and above-mentioned crotch is hooked in sense and carries on the spring bottom bracket 6.When on automobile is jolting the road surface, going, violent motion takes place in the relative vehicle body of back axle, carries spring bottom bracket 6 because move with back axle with the sense that back axle links to each other, and then is easy to break away from from above-mentioned crotch.In case above-mentioned disengaging takes place, load sensing valve will lose efficacy, and the braking force of automobile front and back wheel can't be adjusted, and the automobile in going is just probably caused danger.
The utility model content
The purpose of the utility model provides a kind of sense year spring bottom bracket and firm hook of sense year spring of can guaranteeing and connects, thereby makes the safer load sensing valve of driving a vehicle.
The load sensing valve of the utility model; Comprise that the bar assembly is carried in valve body assembly, sense, sense is carried spring, felt and carry the spring bottom bracket; The end that the bar assembly is carried in said sense is connected with said valve body assembly, and the other end that the bar assembly is carried in said sense is connected with first end that spring is carried in said sense, and second end that spring is carried in said sense carries the spring bottom bracket with said sense and is connected; Second end that spring is carried in said sense is provided with crook; Said sense is carried the spring bottom bracket and is comprised cross bar, and the coupler body of said crook carries the direction extension of spring to pointing to said sense after walking around said cross bar, is formed for the chute that prevents that said cross bar breaks away from.
The load sensing valve of the utility model, wherein, the coupler body of said crook carries spring direction extension back to the bending of the outside of said chute to pointing to said sense, forms the exterior jag that points to said chute.
The load sensing valve of the utility model; Wherein, Said cross bar is provided with and is used to prevent first anti-flake and the second anti-flake of the coupler body of said crook by said cross bar disengaging; The said first anti-flake is positioned at the front side of said coupler body, and the said second anti-flake is positioned at the rear side of said coupler body, and the said first anti-flake, the said second anti-flake are circle.
The load sensing valve of the utility model, wherein, the radius of the said first anti-flake is greater than the radius of said crook, and the radius of the said second anti-flake is greater than the radius of said crook.
The load sensing valve of the utility model, wherein, the said first anti-flake, the said second anti-flake are all perpendicular to said cross bar.
The load sensing valve of the utility model, wherein, the diameter of the said second anti-flake is identical with the diameter of the said first anti-flake.
The load sensing valve of the utility model can guarantee that the spring bottom bracket is carried in sense and the firm hook of sense year spring connects; Even running car is in rugged road surface; Vehicle body takes place under the violent situation of jolting, and sense year spring bottom bracket carries spring with sense and also can not break away from, thereby guarantees traffic safety.
Description of drawings
Fig. 1 is the front view of structural representation of the load sensing valve of the utility model;
Fig. 2 is the right elevation of structural representation of the load sensing valve of the utility model;
Fig. 3 has removed the A partial enlarged drawing behind the first anti-flake for Fig. 1.
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
Like Fig. 1, shown in Figure 3, the load sensing valve that a kind of embodiment of the utility model provides comprises that bar assembly 4 is carried in valve body assembly 1, heterotypic bolt 2, pressure spring 3, sense, sense is carried spring 5, felt and carry spring bottom bracket 6.Wherein, valve body assembly 1 passes through bolt on the floor stand (not shown) of vehicle body.Sense is carried spring bottom bracket 6 and is fixed on the mounting bracket (not shown) of back axle through nut.Thus, vehicle body and back axle link together through load sensing valve.The end that bar assembly 4 is carried in sense is connected with valve body assembly 1.It is vertical with sense year bar assembly 4 that spring 5 is carried in sense.The other end that bar assembly 4 is carried in sense is connected with first end 51 of feeling year spring 5, and second end 52 that spring 5 is carried in sense is connected with a sense year spring bottom bracket 6.Specifically, second end 52 that spring 5 is carried in sense is provided with crook 50, and a sense year spring bottom bracket 6 comprises cross bar 61, and the coupler body 55 of crook 50 is walked around cross bar 61 backs and carried the direction extension of spring 5 to pointing to sense, is formed for the chute 56 that prevents that cross bar 61 breaks away from.
In the present embodiment, the coupler body 55 of crook 50 to the bending of the outside of chute 56, forms the exterior jag 57 that points to chute 56 after pointing to sense to carry the direction extension of spring 5.
In conjunction with shown in Figure 2; In the present embodiment; Cross bar 61 is provided with and is used to prevent first anti-flake 8 and the second anti-flake 9 of the coupler body 55 of crook 50 by cross bar 61 disengagings; The first anti-flake 8 is positioned at the front side of coupler body 55, and the second anti-flake 9 is positioned at the rear side of coupler body 55, and first anti-flake 8, the second anti-flake 9 is circle.
In the present embodiment, the radius of the first anti-flake 8 is greater than the radius of crook 50.
In the present embodiment, the radius of the second anti-flake 9 is greater than the radius of crook 50.
In the present embodiment, the diameter of the second anti-flake 9 is identical with the diameter of the first anti-flake 8.
When the running car of the load sensing valve that the utility model is installed on rugged road surface, violent relative motion takes place in the relative vehicle body of back axle, the motion that spring bottom bracket 6 is understood with back axle is carried in the sense that links to each other with back axle, and receives longitudinal force and side force.When spring bottom bracket 6 received side force, because the cross bar 61 of spring bottom bracket 6 is provided with radius all greater than first anti-flake 8, the second anti-flake 9 of the radius of crook 50, sense was carried spring 5 and can't be carried a spring bottom bracket 6 from sense and deviate from.When spring bottom bracket 6 received longitudinal force, the cross bar 61 that spring bottom bracket 6 is carried in sense can slide in the crook 50 of sense year spring 5, and when spring bottom bracket 6 upward movements, because the existence of chute 56, spring bottom bracket 6 can not carry spring 5 with sense and break away from fully.When spring bottom bracket 6 received downward power, spring bottom bracket 6 can be got back to original position.
The load sensing valve of the utility model can guarantee that the spring bottom bracket is carried in sense and the firm hook of sense year spring connects; Even running car is in rugged road surface; Vehicle body takes place under the violent situation of jolting, and sense year spring bottom bracket carries spring with sense and also can not break away from, thereby guarantees traffic safety.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (6)
1. load sensing valve; Comprise that the bar assembly is carried in valve body assembly, sense, sense is carried spring, felt and carry the spring bottom bracket, the end that the bar assembly is carried in said sense is connected with said valve body assembly, and the other end that the bar assembly is carried in said sense is connected with first end that spring is carried in said sense; Second end that spring is carried in said sense carries the spring bottom bracket with said sense and is connected; It is characterized in that second end that spring is carried in said sense is provided with crook, said sense is carried the spring bottom bracket and is comprised cross bar; The coupler body of said crook carries the direction extension of spring to pointing to said sense after walking around said cross bar, is formed for the chute that prevents that said cross bar breaks away from.
2. load sensing valve according to claim 1 is characterized in that, the coupler body of said crook carries spring direction extension back to the bending of the outside of said chute to pointing to said sense, forms the exterior jag that points to said chute.
3. load sensing valve according to claim 1 and 2; It is characterized in that; Said cross bar is provided with and is used to prevent first anti-flake and the second anti-flake of the coupler body of said crook by said cross bar disengaging; The said first anti-flake is positioned at the front side of said coupler body, and the said second anti-flake is positioned at the rear side of said coupler body, and the said first anti-flake, the said second anti-flake are circle.
4. load sensing valve according to claim 3 is characterized in that, the radius of the said first anti-flake is greater than the radius of said crook, and the radius of the said second anti-flake is greater than the radius of said crook.
5. load sensing valve according to claim 4 is characterized in that, the said first anti-flake, the said second anti-flake are all perpendicular to said cross bar.
6. load sensing valve according to claim 5 is characterized in that, the diameter of the said second anti-flake is identical with the diameter of the said first anti-flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200160350U CN202429195U (en) | 2012-01-13 | 2012-01-13 | Load sensing proportioning valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200160350U CN202429195U (en) | 2012-01-13 | 2012-01-13 | Load sensing proportioning valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202429195U true CN202429195U (en) | 2012-09-12 |
Family
ID=46778665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200160350U Expired - Fee Related CN202429195U (en) | 2012-01-13 | 2012-01-13 | Load sensing proportioning valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202429195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842989A (en) * | 2014-08-08 | 2015-08-19 | 北汽福田汽车股份有限公司 | Mounting method and mounting structure of load sensing proportioning valve, and vehicle |
-
2012
- 2012-01-13 CN CN2012200160350U patent/CN202429195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842989A (en) * | 2014-08-08 | 2015-08-19 | 北汽福田汽车股份有限公司 | Mounting method and mounting structure of load sensing proportioning valve, and vehicle |
| CN104842989B (en) * | 2014-08-08 | 2018-02-23 | 北汽福田汽车股份有限公司 | Installation method, mounting structure and the vehicle of SABS |
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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: 20120912 Termination date: 20210113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |