CN202152767U - Proportional valve - Google Patents
Proportional valve Download PDFInfo
- Publication number
- CN202152767U CN202152767U CN2011202540576U CN201120254057U CN202152767U CN 202152767 U CN202152767 U CN 202152767U CN 2011202540576 U CN2011202540576 U CN 2011202540576U CN 201120254057 U CN201120254057 U CN 201120254057U CN 202152767 U CN202152767 U CN 202152767U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- electromagnet
- proportional valve
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a novel proportional valve, which is used for resolving the problem that control accuracy of an existing proportional valve is affected due to a valve core spring when an electromagnet works on the condition of low current signals. The novel proportional valve comprises a valve core spring, a valve sleeve, a valve core, an end cover and an electromagnet, wherein the valve sleeve is installed in the end cover, the valve core is installed in the valve sleeve from the left end of the valve sleeve, a locating block is disposed at the end of the left side of the valve core, the valve core spring is sleeved on the left side of the locating block, and the electromagnet is fixed on the right side of the end cover. The novel proportional valve can be installed on a pilot-operated type proportional valve in matched mode.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of Proportional valve.
Background technique
Proportional valve claims that also operated proportional flow control valve is a kind ofly to regulate pro rata and the flow of stable oil circuit according to electrical signal, thereby changes a kind of valve of actuator's movement velocity.As shown in Figure 2 is a kind of pilot proportional valve; It comprises spring, valve pocket, spool, end cap, electromagnet; This valve is used wider in hydraulic control system, but has following defective from the structure analysis of operation practice and valve: 1, valve core spring is contained in valve core inside, and the active force of spring acts on the push rod of electromagnet all the time; When electromagnet when low current signal is worked, because the reaction force of valve core spring directly influences the control accuracy of valve; 2, spool leans on electromagnet terminal point stroke to locate entirely, thereby has influenced the positional accuracy between spool and the valve pocket, and these problems are ubiquity on existing Proportional valve especially pilot proportional valve, never is well solved.
The model utility content
The purpose of the utility model is that a kind of novel Proportional valve will be provided; To solve the defective that exists on the existing pilot proportional valve; This novel Proportional valve can adopt following technological scheme to implement: it comprises valve core spring, valve pocket, spool, end cap and electromagnet; Wherein valve pocket is contained in the valve pocket hole on the end cap; Spool is from the left end of the valve pocket valve pocket of packing into, is provided with a cylindrical step as spool positioning block (abbreviation positioning block) in the left end of spool, and valve core spring is enclosed within on the left surface of spool positioning block.Spool positioning block and spool are integral structures.Electromagnet is fixed on the right flank of valve body end cap, and the push rod of electromagnet gets in the spool bore on the valve pocket.All the other structures and component and existing technology are same or similar.
The Proportional valve that designs and produces according to technique scheme compared with prior art its main feature is:
1, becomes plane positioning between the positioning block on the spool and the valve pocket;
2, spring in the left side of positioning block one end, the spool end is controlled at the initial position of spool the left end face position of valve pocket all the time by the spool positioning block under the effect of spring force, improved the Location accuracy of spool and valve pocket;
3, leave a determining deviation between the push rod of electromagnet and the spool initial position, the initial position when making electromagnet under the low current situation, keep away the electromagnet starting can be exported a constant thrust, has improved the control accuracy of Proportional valve.
Description of drawings
The Proportional valve structural representation of Fig. 1, the utility model;
The structural representation of Proportional valve in Fig. 2, the existing technology.
Embodiment
The Proportional valve of the utility model can be implemented according to mode shown in Figure 1: as shown in the figure it comprise valve core spring 1, valve pocket 2, spool 3, end cap 4 and electromagnet 5; Wherein valve pocket 2 is contained in the valve pocket hole on the end cap 4; Spool 3 is from the left end of the valve pocket valve pocket 2 of packing into, in the left end of spool 3 a spool positioning block 6 arranged, and valve core spring 1 is enclosed within on the left surface of spool positioning block 6; Electromagnet is fixed on the left surface of end cap 4, and the push rod of electromagnet gets in the spool bore on the valve pocket.The O RunddichtringO all is equipped with in the conjunction plane of all component and connection place on valve body in the installation process of whole valve, in all auxiliary holes on the end cap, plug is housed all and seals, and all the other structures and working principle and existing Proportional valve are same or similar.
Claims (2)
1. Proportional valve; It is characterized in that it comprises valve core spring (1), valve pocket (2), spool (3), end cap (4) and electromagnet (5); Wherein valve pocket (2) is contained in the valve pocket hole on the end cap (4), and spool (3) is from the left end of the valve pocket valve pocket (2) of packing into, in the left end of spool (3) a spool positioning block (6) is arranged; Valve core spring (1) is enclosed within on the left surface of spool positioning block (6), and electromagnet is fixed on the left surface of end cap (4).
2. Proportional valve according to claim 1 is characterized in that spool positioning block (6) and spool (3) are integral structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202540576U CN202152767U (en) | 2011-07-19 | 2011-07-19 | Proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202540576U CN202152767U (en) | 2011-07-19 | 2011-07-19 | Proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202152767U true CN202152767U (en) | 2012-02-29 |
Family
ID=45693264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202540576U Expired - Fee Related CN202152767U (en) | 2011-07-19 | 2011-07-19 | Proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202152767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032400A (en) * | 2012-12-27 | 2013-04-10 | 宁波广天赛克思液压有限公司 | Novel valve core with spring seat |
| CN108425906A (en) * | 2018-06-14 | 2018-08-21 | 东莞海特帕沃液压科技有限公司 | Hydraulic control proportional flow control valve |
-
2011
- 2011-07-19 CN CN2011202540576U patent/CN202152767U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032400A (en) * | 2012-12-27 | 2013-04-10 | 宁波广天赛克思液压有限公司 | Novel valve core with spring seat |
| CN108425906A (en) * | 2018-06-14 | 2018-08-21 | 东莞海特帕沃液压科技有限公司 | Hydraulic control proportional flow 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: 20120229 Termination date: 20180719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |