CN204357815U - Proportional pressure control valve - Google Patents
Proportional pressure control valve Download PDFInfo
- Publication number
- CN204357815U CN204357815U CN201420702374.3U CN201420702374U CN204357815U CN 204357815 U CN204357815 U CN 204357815U CN 201420702374 U CN201420702374 U CN 201420702374U CN 204357815 U CN204357815 U CN 204357815U
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- CN
- China
- Prior art keywords
- magnet
- runner
- proportion electro
- pressure control
- control valve
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- Expired - Fee Related
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Abstract
The utility model proposes a kind of proportional pressure control valve, the pilot valve comprising proportion electro-magnet and be connected with this proportion electro-magnet, there is in described proportion electro-magnet a hydraulic path, a runner be communicated with the hydraulic path of proportion electro-magnet is provided with in described pilot valve, described runner communicates with the external world, and the outer end of described runner and the outer end of described hydraulic path are connected with a fuel tank respectively by oil pipe.Proportional pressure control valve in the utility model, by pilot valve being arranged the runner be communicated with the hydraulic path of proportion electro-magnet, thus the oil in introducing ambient fuel tank flows through the hydraulic path of proportion electro-magnet, so that the heat in it is taken away, prevent its due to proportion electro-magnet temperature too high and damage, improve working life.
Description
Technical field
The utility model relates to a kind of relief valve, particularly a kind of proportional pressure control valve.
Background technique
Proportional pressure control valve is as a critical elements in hydraulic system, by the overflow of valve port, makes the pressure remained constant in controlled system and loop, realizes pressure stabilization function.
Existing proportional pressure control valve is divided into direct-acting type and leading type two kinds usually, wherein direct-acting type is by electromagnet set pressure, and the difference force of relief valve spool is balanced by electromagnet completely, due to the restriction of electromagnet ouput force, work can only be carried out at low pressures, cannot be applied in high-pressure system.Pilot operated compound relief valve adopts the pilot stage spool that area is less, and the power greatly reducing electromagnet exports requirement, can be operated in high-pressure system.But the proportion electro-magnet of existing precursor overflow valve, at full capacity, when namely voltage is the highest, easily burns out, thus the service time that impact is overall.
Model utility content
The utility model proposes a kind of proportional pressure control valve, solve the problem that proportional pressure control valve of the prior art easily burns out.
The technical solution of the utility model is achieved in that
A kind of proportional pressure control valve, the pilot valve comprising proportion electro-magnet and be connected with this proportion electro-magnet, there is in described proportion electro-magnet a hydraulic path, a runner be communicated with the hydraulic path of proportion electro-magnet is provided with in described pilot valve, described runner communicates with the external world, and the outer end of described runner and the outer end of described hydraulic path are connected with a fuel tank respectively by oil pipe.
Preferred version is, described runner is L shape, and it comprises the horizontal run be communicated with the hydraulic path of proportion electro-magnet and the vertical runner be connected with this horizontal run, and the top of described vertical runner communicates with the external world.
Preferred version is, the outer end of described runner and the outer end of described hydraulic path are respectively equipped with a joint, by joint connected pipes.
Preferred version is, the diameter of bore of described runner is 4mm.
Preferred version is, described oil pipe is teflon pipe.
Preferred version is, described joint comprises main body portion, seal ring and adapter sleeve, one end of described main body portion is connected with runner, the other end close-fitting is in oil pipe, one end close-fitting of described adapter sleeve is outside oil pipe, the other end is socketed on main body portion, and described seal ring close-fitting is on body and between adapter sleeve and oil pipe.
The beneficial effects of the utility model are:
Proportional pressure control valve in the utility model, by pilot valve being arranged the runner be communicated with the hydraulic path of proportion electro-magnet, thus the oil in introducing ambient fuel tank flows through the hydraulic path of proportion electro-magnet, so that the heat in it is taken away, thus prevent its due to proportion electro-magnet temperature too high and damage, improve working life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the side structure schematic diagram of the utility model proportional pressure control valve;
Fig. 2 is the sectional view of Fig. 1 middle joint and tubing section.
In figure:
100, proportional pressure control valve; 10, proportion electro-magnet; 11, hydraulic path; 13, joint; 15,25, oil pipe; 20, pilot valve; 21, runner; 210, horizontal run; 212, vertical runner; 30, fuel tank; 130, main body portion; 132, seal ring; 135, adapter sleeve.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, this proportional pressure control valve 100 pilot valve 20 of comprising proportion electro-magnet 10 and being connected with this proportion electro-magnet 10.
Have a hydraulic path 11 in described proportion electro-magnet 10, this hydraulic path 11 along the longitudinal extension of proportion electro-magnet 10, and is connected with a joint 13 in its outer end.Described joint 13 is for being connected with a fuel tank 30 by an oil pipe 15.
A runner 21 is provided with in described pilot valve 20.Described runner 21 is L shape, and it comprises a horizontal run 210 be communicated with the hydraulic path 11 of proportion electro-magnet 10 and vertical runner 212 connected vertically with this horizontal run 210.Described horizontal run 210 is extended in pilot valve 20 by the position of the corresponding hydraulic path 11 in the front end of pilot valve 20, and is connected with the hydraulic path 11 of proportion electro-magnet 10.Described vertical runner 212 is extended upwardly to by the inner of horizontal run 210 and communicates with the external world.The outer end of described vertical runner 212 is connected with a joint 13.Described joint 13 is connected with fuel tank 30 by an oil pipe 25.Runner 21 diameter of bore of described pilot valve 20 is 4mm, both can ensure that it flows through the amount of hydraulic oil, can avoid again producing with miscellaneous part in pilot valve 20 and interferes and affect the performance of miscellaneous part.
Described oil pipe 15,25 is teflon pipe.Please refer to Fig. 2, described joint 13 comprises main body portion 130, seal ring 132 and adapter sleeve 135.One end of described main body portion 130 is connected with runner, and the other end close-fitting is in oil pipe 15,25.One end close-fitting of described adapter sleeve 135 is outside oil pipe 15,25, and the other end is socketed on main body portion 130.Seal ring 132 close-fitting is on body 130 and between adapter sleeve 135 and oil pipe 15,25.The structure of described joint 13, can strengthen the soundness be connected between oil pipe 15,25, and convenient disassembly.
During concrete enforcement, the shape of the runner 21 in described pilot valve 20 is not limited to the situation of the present embodiment, and it can be L shape, also can be other shapes of bending, as long as can ensure to make it be communicated with the hydraulic path 11 of proportion electro-magnet 10, and is in communication with the outside.The aperture of described runner 21 is also not limited to the size of the present embodiment, ensureing as far as possible in it while hydraulic oil discharge value, also ensures not have an impact with miscellaneous part.
During use, in fuel tank, the hydraulic oil of 30 is drawn onto in pilot valve 20 by oil pipe 25, and flow along the runner 21 of pilot valve 20, in hydraulic path 11 again by horizontal run stream 210 to the proportion electro-magnet 10 of runner 21, be back in fuel tank 30 by oil pipe 15 again after being flowed out by the front end of hydraulic path 11, heat in proportion electro-magnet 10 is taken away by described hydraulic oil in the process of flowing, thus improve the working life of proportion electro-magnet 10, prevent proportion electro-magnet 10 temperature too high and damage, and then improving the working life of proportional pressure control valve 100 entirety.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a proportional pressure control valve, the pilot valve comprising proportion electro-magnet and be connected with this proportion electro-magnet, there is in described proportion electro-magnet a hydraulic path, it is characterized in that: in described pilot valve, be provided with a runner be communicated with the hydraulic path of proportion electro-magnet, described runner communicates with the external world, and the outer end of described runner and the outer end of described hydraulic path are connected with a fuel tank respectively by oil pipe.
2. proportional pressure control valve as claimed in claim 1, it is characterized in that: described runner is L shape, it comprises the horizontal run be communicated with the hydraulic path of proportion electro-magnet and the vertical runner be connected with this horizontal run, and the top of described vertical runner communicates with the external world.
3. proportional pressure control valve as claimed in claim 1, is characterized in that: the outer end of described runner and the outer end of described hydraulic path are respectively equipped with a joint, by joint connected pipes.
4. proportional pressure control valve according to any one of claims 1 to 3, is characterized in that: the diameter of bore of described runner is 4mm.
5. proportional pressure control valve as claimed in claim 1, is characterized in that: described oil pipe is teflon pipe.
6. proportional pressure control valve as claimed in claim 3, it is characterized in that: described joint comprises main body portion, seal ring and adapter sleeve, one end of described main body portion is connected with runner, the other end close-fitting is in oil pipe, one end close-fitting of described adapter sleeve is outside oil pipe, the other end is socketed on main body portion, and described seal ring close-fitting is on body and between adapter sleeve and oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702374.3U CN204357815U (en) | 2014-11-21 | 2014-11-21 | Proportional pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702374.3U CN204357815U (en) | 2014-11-21 | 2014-11-21 | Proportional pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357815U true CN204357815U (en) | 2015-05-27 |
Family
ID=53259288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420702374.3U Expired - Fee Related CN204357815U (en) | 2014-11-21 | 2014-11-21 | Proportional pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673602A (en) * | 2014-11-21 | 2016-06-15 | 大连华东液压件有限公司 | Proportional overflow valve |
-
2014
- 2014-11-21 CN CN201420702374.3U patent/CN204357815U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673602A (en) * | 2014-11-21 | 2016-06-15 | 大连华东液压件有限公司 | Proportional overflow valve |
| CN105673602B (en) * | 2014-11-21 | 2018-11-06 | 大连华东液压件有限公司 | Proportional pressure control valve |
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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: 20150527 Termination date: 20151121 |