CN204548073U - A kind of load sensing valve and brake-force control system - Google Patents
A kind of load sensing valve and brake-force control system Download PDFInfo
- Publication number
- CN204548073U CN204548073U CN201520264821.6U CN201520264821U CN204548073U CN 204548073 U CN204548073 U CN 204548073U CN 201520264821 U CN201520264821 U CN 201520264821U CN 204548073 U CN204548073 U CN 204548073U
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- spring
- adjustment
- valve body
- pressure chamber
- oil pressure
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- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 239000000428 dust Substances 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 208000032836 Ring chromosome 15 syndrome Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model provides a kind of load sensing valve and brake-force control system, and wherein the former comprises valve body and for described valve body being arranged on the fixed support on automobile axle; Described valve body comprises valve body body, sealing plug, pressure spring and spring cushion block, wherein, described valve body body is provided be communicated with in turn the import of rear axle braking liquid, adjustment of oil pressure chamber and braking liquid outlet, described adjustment of oil pressure chamber has the opening be connected with the external world, described sealing plug from described fixed support through and with the opening interference fit in described adjustment of oil pressure chamber, described pressure spring and described spring cushion block are arranged in described adjustment of oil pressure chamber, one end and the described sealing plug of described pressure spring offset, and the other end and described spring cushion block offset.The load sensing valve structure that the utility model provides is simple, and not easily break down, reliability is high, and installation requirements space is little, only needs to be arranged on automobile axle, easy for installation, not easily interferes with its Surrounding Parts.
Description
Technical field
The utility model relates to brake system of car, particularly a kind of automobile load-sensing proportion valve and brake-force control system.
Background technology
Load sensing valve is for adjusting the output of the rear axle braking force of automobile, as shown in Figure 1, existing load sensing valve comprises valve body 1', connection bracket 2', pressing plate 3, spring 4', connecting rod 5', fixed support 6' and bolt 7', fixed support 6' is connected with back axle, the free end of connecting rod 5' is connected with vehicle frame, wherein, connection bracket 2' is provided with three coupling ends, be respectively the first coupling end 21', second coupling end 22' and the 3rd coupling end 23', 3rd coupling end 23' place has long arc-shaped holes, first coupling end 21' is connected by bearing pin or rivet etc. with one end of valve body 1', and connection bracket 2' can rotate relatively with valve body 1', fixed support 6' is connected with the other end of valve body 1', pressing plate 3' is used for the aperture of control valve body 1', its self-retaining support 6' passes, be provided with spring 4' between one end of pressing plate 3' and the second coupling end 22' of connection bracket 2', thus make the rotary motion of connection bracket 2' can be converted into tensile force to spring 4', to control pressing plate 3', connecting rod 5' is provided with two, be respectively first connecting rod 51', second connecting rod 52', one end of first connecting rod 51' and the long arc-shaped holes of the 3rd coupling end 23' are fixed (under normal service condition by bolt 7', connection bracket 2' and first connecting rod 51' can firmly be fixed together by bolt 7', can not there is relative motion in support 2' and first connecting rod 51'), both connection locations are adjustable, and one end of second connecting rod 52' is connected with the other end of first connecting rod 51' linkage.
As shown in Figures 2 and 3, the valve body 1' of existing load sensing valve comprises valve body body 11', valve body body 11' is provided with rear axle braking liquid import 111', adjustment of oil pressure chamber 112' and the braking liquid outlet 113' be communicated with in turn, wherein, be provided with pilot pin 114' in the 112' of adjustment of oil pressure chamber, be positioned at the pressure spring 115' on pilot pin 114' surface and the pedestal 116' for closed adjustment of oil pressure chamber 112'; One end of pilot pin 114' is by rubber piston 117' and adjustment of oil pressure chamber 112' bearing fit, and the other end of pilot pin 114' is by rubber piston 117' and pedestal 116' bearing fit; Seal ring 118' is provided with between pedestal 116' and adjustment of oil pressure chamber 112', pedestal 116' is provided with dust boot 119' away from one end of valve body body 11', pilot pin 114' stretches out in dust boot 119', and the part that pressing plate 3' stretches out in dust boot 119' with pilot pin 114' is connected.
This load sensing valve parts are many, and complex structure, easily breaks down, and reliability is low, and high to installation requirement, the vehicle of, narrow space very compact for some structures, load sensing valve when moving easily and its Surrounding Parts occurrence dynamics interfere.
Utility model content
It is simple that the technical problems to be solved in the utility model is to provide a kind of structure, the load sensing valve that space requirement is little, and the brake-force control system applying this load sensing valve.
For solving the problems of the technologies described above, the load sensing valve that the utility model provides comprises valve body and for described valve body being arranged on the fixed support on automobile axle;
Described valve body comprises valve body body, sealing plug, pressure spring and spring cushion block, wherein, described valve body body is provided be communicated with in turn the import of rear axle braking liquid, adjustment of oil pressure chamber and braking liquid outlet, described adjustment of oil pressure chamber has the opening be connected with the external world, described sealing plug from described fixed support through and with the opening interference fit in described adjustment of oil pressure chamber, described pressure spring and described spring cushion block are arranged in described adjustment of oil pressure chamber, one end and the described sealing plug of described pressure spring offset, and the other end and described spring cushion block offset.
Preferably, seal ring is provided with between described sealing plug and described adjustment of oil pressure chamber.
Preferably, one end that described sealing plug and described pressure spring offset is provided with spring groove, and one end of described pressure spring and the bottom of described spring groove offset.
More preferably, the bottom of described spring groove is provided with the projection matched with described pressure spring.
The utility model additionally provides a kind of brake-force control system, it comprises above-mentioned load sensing valve and car load load collector, and one end that the spring cushion block of described load sensing valve and described pressure spring offset is provided with the spring adjustment block that can adjust height according to the signal of car load load collector.
Preferably, the signal that can gather car load load collector and the electronic control unit sending the signal changing described spring adjustment block height is also comprised.
The load sensing valve structure that the utility model provides is simple, and not easily break down, reliability is high, and installation requirements space is little, only needs to be arranged on automobile axle, easy for installation, not easily interferes with its Surrounding Parts.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing load sensing valve;
Fig. 2 is the structural representation of the valve body of existing load sensing valve;
Fig. 3 is the local structure schematic diagram of the valve body of existing load sensing valve;
Fig. 4 is the structural representation of the utility model load sensing valve embodiment;
Fig. 5 is the section-drawing of the utility model load sensing valve.
Indicate as follows in figure:
Valve body-1', valve body body-11', rear axle braking liquid import-111', adjustment of oil pressure chamber-112', braking liquid outlet-113', pilot pin-114', pressure spring-115', pedestal-116', rubber piston-117', seal ring-118', dust boot-119', connection bracket-2', first coupling end-21', second coupling end-22', 3rd coupling end-23', pressing plate-3', spring-4', connecting rod-5', first connecting rod-51', second connecting rod-52', fixed support-6', bolt-7', valve body-1, valve body body-11, rear axle braking liquid import-111, adjustment of oil pressure chamber-112, braking liquid outlet-113, sealing plug-12, spring groove-121, protruding-122, pressure spring-13, spring cushion block-14, seal ring-15, fixed support-2, spring adjustment block-3.
Detailed description of the invention
For enabling above-mentioned purpose, the feature and advantage of utility model more become apparent, below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
As shown in Figure 4, the load sensing valve that the utility model provides, comprise valve body 1 and for described valve body 1 being arranged on the fixed support 2 on automobile axle, it should be apparent to those skilled in the art that, valve body 1 is welded on automobile axle by fixed support 2, or is installed by the mounting hole bolt that can be connected with automobile axle that fixed support 2 is arranged;
Described valve body 1 comprises valve body body 11, sealing plug 12, pressure spring 13 and spring cushion block 14, wherein, described valve body body 11 is provided with the rear axle braking liquid import 111 be communicated with in turn, adjustment of oil pressure chamber 112 and braking liquid outlet 113, described adjustment of oil pressure chamber 112 has the opening be connected with the external world, described sealing plug 12 from described fixed support 2 through and with the opening interference fit in described adjustment of oil pressure chamber, described pressure spring 13 and described spring cushion block 14 are arranged in described adjustment of oil pressure chamber 112, one end and the described sealing plug 12 of described pressure spring 13 offset, the other end and described spring cushion block 14 offset.
During the load sensing valve work that the utility model provides, rear axle braking liquid with pressure enters from rear axle braking liquid import 111, flow to adjustment of oil pressure chamber 112, adjusted by the pressure of the pressure spring 13 in adjustment of oil pressure chamber 112 and spring cushion block 14 pairs of rear axle brakings liquid, rear axle braking liquid self-control hydrodynamic outlet 113 after pressure adjusting is flowed out, the rear axle braking liquid that pressure reduces enters rear axle brake system, like this, just reaches the object of load sensing valve adjustment rear axle braking liquid oil pressure.
The load sensing valve structure that the utility model provides is simple, and not easily break down, reliability is high, and there is no bar linkage structure relative to prior art, installation requirements space is little, only needs to be arranged on automobile axle, easy for installation, not easily interfere with its Surrounding Parts.
In order to ensure sealing effectiveness, between described sealing plug 12 and described adjustment of oil pressure chamber 112, be provided with seal ring 15.
In order to spacing to the pressure spring 13 being arranged in adjustment of oil pressure chamber 112 better, one end that described sealing plug 12 and described pressure spring 13 offset is provided with spring groove 121, and one end of described pressure spring 13 and the bottom of described spring groove 121 offset.
Further, in order to prevent pressure spring 13 mobile in adjustment of oil pressure chamber 112, the bottom of described spring groove 121 is provided with the projection 122 matched with described pressure spring 13, and namely the inner ring of pressure spring 13 can match with protruding 122.
The utility model additionally provides a kind of brake-force control system, it comprises above-mentioned load sensing valve and car load load collector, one end that spring cushion block 14 and the described pressure spring 13 of described load sensing valve offset is provided with the spring adjustment block 3 that can adjust height according to the signal of car load load collector, like this, when car load load changes, the height of spring adjustment block 3 changes, thus change the length of pressure spring 13, the elastic force of pressure spring 13 changes, and the output oil pressure of rear axle braking liquid changes.
In order to the height of controlling spring adjustment block 3 better, brake-force control system of the present utility model also comprises the signal that can gather car load load collector and the electronic control unit (ECU) sending the signal changing described spring adjustment block 3 height.
Although the utility model is described in conjunction with above embodiment, but the utility model is not defined to above-described embodiment, and only by the restriction of claims, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present utility model and scope.
Claims (6)
1. a load sensing valve, is characterized in that, comprises valve body and for described valve body being arranged on the fixed support on automobile axle;
Described valve body comprises valve body body, sealing plug, pressure spring and spring cushion block, wherein, described valve body body is provided be communicated with in turn the import of rear axle braking liquid, adjustment of oil pressure chamber and braking liquid outlet, described adjustment of oil pressure chamber has the opening be connected with the external world, described sealing plug from described fixed support through and with the opening interference fit in described adjustment of oil pressure chamber, described pressure spring and described spring cushion block are arranged in described adjustment of oil pressure chamber, one end and the described sealing plug of described pressure spring offset, and the other end and described spring cushion block offset.
2. load sensing valve according to claim 1, is characterized in that, is provided with seal ring between described sealing plug and described adjustment of oil pressure chamber.
3. load sensing valve according to claim 1, is characterized in that, one end that described sealing plug and described pressure spring offset is provided with spring groove, and one end of described pressure spring and the bottom of described spring groove offset.
4. load sensing valve according to claim 3, is characterized in that, the bottom of described spring groove is provided with the projection matched with described pressure spring.
5. a brake-force control system, it is characterized in that, comprise the load sensing valve described in any one of Claims 1-4 and car load load collector, one end that the spring cushion block of described load sensing valve and described pressure spring offset is provided with the spring adjustment block that can adjust height according to the signal of car load load collector.
6. brake-force control system according to claim 5, is characterized in that, also comprises the signal that can gather car load load collector and the electronic control unit sending the signal changing described spring adjustment block height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264821.6U CN204548073U (en) | 2015-04-28 | 2015-04-28 | A kind of load sensing valve and brake-force control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264821.6U CN204548073U (en) | 2015-04-28 | 2015-04-28 | A kind of load sensing valve and brake-force control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204548073U true CN204548073U (en) | 2015-08-12 |
Family
ID=53823221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520264821.6U Expired - Fee Related CN204548073U (en) | 2015-04-28 | 2015-04-28 | A kind of load sensing valve and brake-force control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204548073U (en) |
-
2015
- 2015-04-28 CN CN201520264821.6U patent/CN204548073U/en not_active Expired - Fee Related
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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: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20190428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |