CN203601252U - Load sensing proportional valve - Google Patents
Load sensing proportional valve Download PDFInfo
- Publication number
- CN203601252U CN203601252U CN201320829222.5U CN201320829222U CN203601252U CN 203601252 U CN203601252 U CN 203601252U CN 201320829222 U CN201320829222 U CN 201320829222U CN 203601252 U CN203601252 U CN 203601252U
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- China
- Prior art keywords
- valve body
- connecting rod
- body support
- load sensing
- coupling end
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- Expired - Fee Related
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- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model relates to a load sensing proportional valve which comprises a valve body, an L-shaped valve body support, a spring and a connecting rod. The L-shaped valve body support is provided with three connecting ends, namely the first connecting end, the second connecting end and the third connecting end, the first connecting end of the valve body support is connected with the valve body in a rotatable mode, the second connecting end of the valve body support is connected with a pressing plate of the valve body through the spring, the third connecting end of the valve body support is connected with one end of the connecting rod, and the connecting position is adjusted through an arc-shaped long hole. According to the load sensing proportional valve, the rotating angle of the valve body support can be controlled by adjusting the position of the connecting rod fixed to the valve body support, mechanisms inside the valve body are adjusted by adjusting the stretched length of the spring to control the valve body to adjust a hydraulic curve, and the whole vehicle braking effect and the stability are improved.
Description
Technical field
The utility model relates to a kind of equipment of controlling automobile braking force output, is specifically related to a kind of load sensing valve.
Background technology
Gently be stuck under zero load, fully laden, the load change on the quality of car load, barycenter, axle is very large, especially rear axle.Light card is to carry out brake system design according to car load fully laden, forward and backward drg all designs bigger than normal, therefore be gently stuck under light condition, the braking force that drg on rear axle can provide is greater than the braking force of actual needs, can cause like this tire locking, easily cause car load whipping, have potential safety hazard; , be gently stuck under zero load, fully laden, the deflection of suspension is inconsistent meanwhile, causes the diff-H of vehicle frame and back axle to have variation.Load sensing valve utilizes phenomenon recited above, carry out the aperture of regulation valve body by the variation of diff-H, and then adjustment braking oil pressure, oil pressure after adjustment is inputted in rear axle brake vi again, the output of control braking force, make the braking force of output meet the demand of car load braking, the stability while guaranteeing car load braking, improves vehicle security.
Existing load sensing valve valve body end is fixed on vehicle frame, bottom is fixed on back axle by support, connect by a connecting rod, car load is under fully laden, Suspension Deformation amount increases, and connecting rod is around the rotation of valve body fixed end, thus adjustment valve body aperture, existing load sensing valve requires highly to installing space, is not suitable for that some structures are very compact, the vehicle of narrow space.Simultaneously, existing load sensing valve cannot be adjusted in the time of assembling, and car load in process of production deviation accumulation is excessive, if there is no regulating mechanism, can cause the curve error of the curve of actual load sensing valve to oil pressure and designing requirement very large, affect car load braking effect and stability.Therefore existing technology is high to load sensing valve accuracy requirement, and the accuracy requirement that car load is produced is also high, causes cost high, and it is large to control difficulty.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of adjustable in when assembling, control simple, the little load sensing valve of assembly space requirement.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: comprise valve body, L shaped valve body support, spring, connecting rod, described L shaped valve body support is provided with three coupling ends, be respectively the first coupling end, the second coupling end, the 3rd coupling end, the first coupling end and the described valve body of described valve body support are rotatably connected, the second coupling end of described valve body support is connected by described spring with the pressing plate of described valve body, and the 3rd coupling end of described valve body support is connected and adjusts connection location by long arc-shaped holes with one end of described connecting rod.
The beneficial effects of the utility model are: in a kind of load sensing valve of utility model, be provided with regulating mechanism, connecting rod is connected with valve body support, by adjusting the connection location of connecting rod on valve body support, the anglec of rotation that can control valve body support, and then the pulling force of adjustment valve body support to spring, thereby the aperture of the valve body that pressing plate controls is adjusted, therefore can be simple, easily load sensing valve is adjusted, adjust the delivery curve of product, eliminate production error, make the delivery curve of product meet designing requirement, easy to control, car load braking effect and stability are improved, cost is low.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described connecting rod comprises first connecting rod and second connecting rod, and one end of described first connecting rod is connected with the 3rd coupling end of described valve body support, the other end of the described first connecting rod linkage that is connected with one end of described the second pipe link.
Adopt the beneficial effect of above-mentioned further scheme to be: a kind of load sensing valve of the utility model connects valve body and bottom mounting bracket by two connecting rods, has optimized the installing space of product, and load sensing valve can be used in the vehicle of some compact conformations.
Further, the other end of described second connecting rod is provided with bulb.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of load sensing valve of the utility model;
Fig. 2 is the hydraulic pressure curve figure that a kind of load sensing valve of the utility model is adjusted.
In accompanying drawing, the list of parts of each label representative is as follows:
1, valve body, 2, valve body support, 2.1, the first coupling end, 2.2, the second coupling end, 2.3, the 3rd coupling end, 3, pressing plate, 4, spring, 5, connecting rod, 5.1, first connecting rod, 5.2, second connecting rod, 5.3, bulb.
The specific embodiment
As shown in Figure 1, a kind of load sensing valve, comprise valve body 1, L shaped valve body support 2, pressing plate 3, spring 4, connecting rod 5, described valve body support 2 is provided with three coupling ends, be respectively the first coupling end 2.1, the second coupling end 2.2, the 3rd coupling end 2.3, it is the connecting bore with certain size that the 3rd coupling end 2.3 of described valve body support 2 has long arc-shaped holes, and the first coupling end 2.1 of described valve body support 2 is fixed on the valve body end of described valve body 1 and also can relatively rotates by the connection such as bearing pin, rivet.Pressing plate 3, for the aperture of control valve body 1, is provided with spring 4 between the second coupling end 2.2 of one end of described pressing plate 3 and described valve body support 2, thereby rotatablely moving of valve body support 2 can be converted into the pulling of spring 4, and pulls pressing plate 3 thereby control.Described connecting rod 5 is provided with two, be respectively first connecting rod 5.1, second connecting rod 5.2, one end of described first connecting rod 5.1 is connected with the 3rd coupling end 2.3 of described valve body support 2, described one end at this connection location place first connecting rod 5.1 is to be bolted in the connection long arc-shaped holes of the 3rd coupling end 5.3 of described valve body support 2, thereby makes connection location adjustable.One end of described the second pipe link 5.2 linkage that is connected with the other end of described first connecting rod 5.1, the other end of described second connecting rod 5.2 is provided with bulb 5.3.Bulb 5.3 is connected on back axle, and valve body 1 is connected on vehicle frame.
Linkage is connected with the other end of first connecting rod 5.1 in one end of the second pipe link 5.2 of a kind of load sensing valve of the utility model, be that first connecting rod 5.1, second connecting rod 5.2 can fold, avoid causing because connecting rod is long in prior art the excessive phenomenon of its installing space, optimize the installing space of product, load sensing valve can be used in the vehicle of some compact conformations.Simultaneously, the utility model has increased regulating mechanism, the 3rd coupling end 2.3 of valve body support 2 is for having the long arc-shaped holes of certain size, one end of first connecting rod 5.1 is bolted in the long arc-shaped holes of the 3rd coupling end 2.3 of valve body support 2, can adjust first connecting rod 5.1 fixing position in the long arc-shaped holes of the 3rd coupling end 2.3 of valve body support 2 by bolt of rear end plate, thereby the anglec of rotation that can control valve body support 2, adjust the stretched length of spring 4, finally adjust the aperture of valve body 1 by pressing plate 3, control valve body regulates the curve of hydraulic pressure, as shown in Figure 2, can be simple, easily load sensing valve is adjusted, adjust the delivery curve of product, eliminate production error, make the delivery curve of product meet designing requirement.
Claims (3)
1. a load sensing valve, it is characterized in that: comprise valve body, L shaped valve body support, spring, connecting rod, described L shaped valve body support is provided with three coupling ends, be respectively the first coupling end, the second coupling end, the 3rd coupling end, the first coupling end and the described valve body of described valve body support are rotatably connected, the second coupling end of described valve body support is connected by described spring with the pressing plate of described valve body, and the 3rd coupling end of described valve body support is connected and adjusts connection location by long arc-shaped holes with one end of described connecting rod.
2. a kind of load sensing valve according to claim 1, it is characterized in that: described connecting rod comprises first connecting rod and second connecting rod, one end of described first connecting rod is connected with the 3rd coupling end of described valve body support, the other end of the described first connecting rod linkage that is connected with one end of described the second pipe link.
3. a kind of load sensing valve according to claim 2, is characterized in that: the other end of described second connecting rod is provided with bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829222.5U CN203601252U (en) | 2013-12-13 | 2013-12-13 | Load sensing proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829222.5U CN203601252U (en) | 2013-12-13 | 2013-12-13 | Load sensing proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203601252U true CN203601252U (en) | 2014-05-21 |
Family
ID=50713945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320829222.5U Expired - Fee Related CN203601252U (en) | 2013-12-13 | 2013-12-13 | Load sensing proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203601252U (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 |
-
2013
- 2013-12-13 CN CN201320829222.5U patent/CN203601252U/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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| 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: 20140521 Termination date: 20191213 |