CN203404166U - Valve element position detector for hydraulic valve - Google Patents
Valve element position detector for hydraulic valve Download PDFInfo
- Publication number
- CN203404166U CN203404166U CN201320503338.XU CN201320503338U CN203404166U CN 203404166 U CN203404166 U CN 203404166U CN 201320503338 U CN201320503338 U CN 201320503338U CN 203404166 U CN203404166 U CN 203404166U
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- signal generator
- coil
- housing
- element position
- valve element
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Abstract
The utility model relates to a valve element position detector for a hydraulic valve. The valve element position detector comprises a signal generator and a connecting joint, the signal generator is composed of a shell, a cap, a fastening nut, a coil, a coil base and a connecting wire socket, the connecting joint is composed of a joint body, a sealing induction sleeve and an induction rod, the shell of the signal generator is connected with the connecting joint through threads, the sealing induction sleeve is inserted in a shaft sleeve of the coil base, and the depth that the shell of the signal generator is inserted in threads inside the connecting joint can be locked through the fastening nut. The valve element position detector has the advantages that induced electroproduction electromotive force is generated by changes of relative positions of the induction rod and the coil, the mechanical displacement is converted into an electric signal, and the situation that a next motion of a machine is allowed or an alarm is given is achieved by detecting the signal, so that the safety performance of mechanical equipment is improved; the valve element position detector is compact in structure, high in accuracy, free of friction losses, high in universality, suitable for valve element position detection on reversing valves, sequence valves and two-way cartridge valves in various types.
Description
Technical field
The utility model relates to a kind of hydrovalve, especially relates to a kind of valve element position detector for hydrovalve.
Background technique
In prior art, especially, in the large oil circuit work system of flow, need to change the commutation of oil circuit or the valve of sequentially-operating or off-load, the often action by pilot valve guides the spool of hydrovalve to move.The deficiency of this structural type is, when the oil pressure of hydraulic system is higher or flow quantity is excessive or raise because of oil temperature, after though pilot valve provides guiding action, valve core of main valve easily clamps, moves situation not in place, causing oil circuit is not to open completely or closure, and this will cause system to produce misoperation, special in the larger big machinery of some danger, in punching shear mechanical, metal forming machinery, engineering machinery, once accident occurs to produce serious consequence.Therefore, the position of Accurate Measurement spool, can make warning or allow normal operation be to be related to a major issue keeping the safety in production.
Model utility content
The purpose of this utility model is to provide a kind of valve element position detector for hydrovalve for prior art deficiency.The position of this detector energy Accurate Measurement spool, provides the information of reporting to the police or allowing normal operation, ensures safety in production.
The purpose of this utility model is to realize by following measures: a kind of valve element position detector for hydrovalve, it is characterized in that, and it includes signal generator, jointing; Wherein:
Described signal generator is by housing, cap, tightening nut, coil, coil base, connector socket forms, described housing is hollow pipe fitting, hollow pipe fitting is provided with the internal thread being connected with cap, the outside thread being connected with jointing, hollow pipe fitting inner chamber wall is provided with the shaft shoulder, described coil base is comprised of axle sleeve and annular truss, described tightening nut is screwed on housing outside thread, coil is placed in the annular truss of coil base, coil base is positioned on the housing inner chamber shaft shoulder, connector socket is fixed on cap, cap is connected with housing by screw thread, coil is connected with connector socket by wire,
Described jointing is comprised of fittings body, sealing induction sleeve, induction rod, described fittings body one end is provided with the internal thread, the other end that are connected with signal generator housing outside thread and is provided with the screw thread being connected with hydrovalve, described sealing induction sleeve is fixed on the shaft axis of jointing, and induction rod inserts in sealing induction sleeve;
Described signal generator housing is connected with jointing by screw thread, and sealing induction sleeve inserts in the axle sleeve of coil base, and tightening nut lock signal generator housing inserts the degree of depth of jointing internal thread.
In the space that described signal generator housing interior lines ring support and cap form, be filled with sealing.
Compared with prior art, adopted the valve element position detector for hydrovalve the utility model proposes, tool has the following advantages: 1) this product produces motional electromotive force induced electricity by the variation of induction rod and coil relative position, mechanical displacement is converted to a kind of electric signal, by the detection of this signal is made, allow the next action of machine or propose to report to the police, having promoted the Safety performance of machinery; 2) this product with compact structure, arrange rationally, validity is high,, highly versatile long without abrasion, life-span, is applicable to selector valve, the sequence valve of Multiple Type, the detection of the valve element position of two-way plug-in valve is a propagable product.
Accompanying drawing explanation
Fig. 1 is the example structure schematic diagram the utility model proposes.
Embodiment
Below in conjunction with accompanying drawing, embodiment is elaborated: Fig. 1 shows an embodiment of the present utility model.In figure, a kind of valve element position detector for hydrovalve, it includes: signal generator 1, jointing 2; Wherein:
Described signal generator 1 is by housing 11, cap 12, tightening nut 13, coil 14, coil base 15, connector socket 16 forms, described housing 11 is hollow pipe fitting, hollow pipe fitting 11 is provided with the internal thread being connected with cap 12, the outside thread being connected with jointing 2, hollow pipe fitting 11 inner chamber walls are provided with the shaft shoulder, described coil base 15 is comprised of axle sleeve and annular truss, described tightening nut 13 is screwed on housing 11 outside threads, coil 14 is placed in the annular truss of coil base 15, coil base 15 is positioned on the housing 11 inner chamber shaft shoulders, connector socket 16 is fixed on cap 12, cap 12 is connected with housing 11 by screw thread, coil 14 is connected with connector socket 16 by wire,
Described jointing 2 is comprised of fittings body 21, sealing induction sleeve 22, induction rod 13, described fittings body 21 one end are provided with the internal thread, the other end that are connected with signal generator housing 11 outside threads and are provided with the screw thread being connected with hydrovalve, described sealing induction sleeve 22 is fixed on the shaft axis of jointing 2, and induction rod 23 inserts in sealing induction sleeve 22;
Described signal generator housing 11 is connected with jointing 2 by screw thread, and sealing induction sleeve 22 inserts in the axle sleeve of coil base 15, and tightening nut 13 lock signal generator housings 11 insert the degree of depth of jointing 2 internal threads.
The utility model is further taked following measure: in the space 18 that described signal generator housing 11 interior lines ring supports 15 and cap 12 form, be filled with sealing.
Working principle of the present utility model is as follows: induction rod of the present utility model is connected with the spool of valve, when moving, spool drive induction rod in company with action, when the relative position of induction rod and coil changes, variation because of magnetic flux, in coil, produce induced electromotive force, the machinery action of spool is converted to electrical signal, by the electrical signal of output, confirms whether the movement of spool puts in place, or provide the signal of making warning or allowing normal operation.The adjustable signal generator of tightening nut in this structure inserts the degree of depth of jointing, is also the initial position of regulating winding and induction rod.In this structure, in the space of device housing interior lines ring support and cap formation, be filled with sealing, circuit and oil circuit are separated, safer.
The embodiment who provides above does not form restriction of the present utility model, and in related domain, those skilled in the art make within the scope of the appended claims various distortion or revise all in protection domain.
Claims (2)
1. for a valve element position detector for hydrovalve, it is characterized in that, it includes signal generator, jointing; Wherein:
Described signal generator is by housing, cap, tightening nut, coil, coil base, connector socket forms, described housing is hollow pipe fitting, hollow pipe fitting is provided with the internal thread being connected with cap, the outside thread being connected with jointing, hollow pipe fitting inner chamber wall is provided with the shaft shoulder, described coil base is comprised of axle sleeve and annular truss, described tightening nut is screwed on housing outside thread, coil is placed in the annular truss of coil base, coil base is positioned on the housing inner chamber shaft shoulder, connector socket is fixed on cap, cap is connected with housing by screw thread, coil is connected with connector socket by wire,
Described jointing is comprised of fittings body, sealing induction sleeve, induction rod, described fittings body one end is provided with the internal thread, the other end that are connected with signal generator housing outside thread and is provided with the screw thread being connected with hydrovalve, described sealing induction sleeve is fixed on the shaft axis of jointing, and induction rod inserts in sealing induction sleeve;
Described signal generator housing is connected with jointing by screw thread, and sealing induction sleeve inserts in the axle sleeve of coil base, and tightening nut lock signal generator housing inserts the degree of depth of jointing internal thread.
2. the valve element position detector for hydrovalve according to claim 1, is characterized in that, in the space that described signal generator housing interior lines ring support and cap form, is filled with sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503338.XU CN203404166U (en) | 2013-08-16 | 2013-08-16 | Valve element position detector for hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503338.XU CN203404166U (en) | 2013-08-16 | 2013-08-16 | Valve element position detector for hydraulic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404166U true CN203404166U (en) | 2014-01-22 |
Family
ID=49940104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503338.XU Expired - Lifetime CN203404166U (en) | 2013-08-16 | 2013-08-16 | Valve element position detector for hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404166U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897380A (en) * | 2015-04-09 | 2015-09-09 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Common-rail pipe pressure-limiting valve matching element pressure-holding stroke detecting device and measuring method |
| CN114034477A (en) * | 2021-11-09 | 2022-02-11 | 上海交通大学 | Micro-stroke magnetic lock type self-locking valve core motion state monitoring method |
-
2013
- 2013-08-16 CN CN201320503338.XU patent/CN203404166U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897380A (en) * | 2015-04-09 | 2015-09-09 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Common-rail pipe pressure-limiting valve matching element pressure-holding stroke detecting device and measuring method |
| CN104897380B (en) * | 2015-04-09 | 2017-12-12 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | The detection means and measuring method of common rail pipe pressure limiting valve coupling pressurize stroke |
| CN114034477A (en) * | 2021-11-09 | 2022-02-11 | 上海交通大学 | Micro-stroke magnetic lock type self-locking valve core motion state monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CX01 | Expiry of patent term |