CN203516293U - Axial-type connecting structure for valve core position detector and electro-hydraulic directional valve - Google Patents
Axial-type connecting structure for valve core position detector and electro-hydraulic directional valve Download PDFInfo
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- CN203516293U CN203516293U CN201320626649.5U CN201320626649U CN203516293U CN 203516293 U CN203516293 U CN 203516293U CN 201320626649 U CN201320626649 U CN 201320626649U CN 203516293 U CN203516293 U CN 203516293U
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- Prior art keywords
- position detector
- electro
- valve core
- valve
- element position
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- 230000006698 induction Effects 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to an axial-type connecting structure for a valve core position detector and an electro-hydraulic directional valve. The axial-type connecting structure comprises the electro-hydraulic directional valve, the valve core position detector, a spring, a washer and a check ring. The outward-extending end of an induction rod of the valve core position detector is inserted into a valve core blind hole. The spring, the washer and the check ring are sequentially placed and buckled into a blind hole check ring groove. The induction rod is sleeved with a sealing induction sleeve of the valve core position detector, and the sealing induction sleeve is screwed on internal threads of a cavity of an end cover on one side of the electro-hydraulic directional valve through external threads of a connector of the valve core position detector. The axial-type connecting structure for the valve core position detector and the electro-hydraulic directional valve has the advantages that the induction rod of the valve core position detector is directly connected with a valve core, the action state of the valve core is reliably shown, the structure is compact, installation is convenient, precision is high, friction losses do not exist, service life is long, meanwhile, maintenance becomes more convenient and easier, and the axial-type connecting structure can be popularized.
Description
Technical field
The utility model relates to a kind of electro-hydraulic reversing valve, especially relates to the axial type linkage structure of a kind of valve element position detector and electro-hydraulic reversing valve.
Background technique
By position detector, detecting the switching of spool operating position is accepted by numerous user.In the prior art, the linkage structure of valve element position detector and electro-hydraulic reversing valve spool roughly has the situation of two aspects: the one, and structure is too complicated, the high Difficulty that causes of cost; Another kind is that structure is owed rationally, and the spool of the induction rod of position detector and the commutation of electric liquid is asynchronous, is prone to misjudgment phenomenon, once have an accident, will produce serious consequence.Therefore, seek that a kind of cost performance is high, the linkage structure of reliable in action is current problem anxious to be resolved.
Summary of the invention
The purpose of this utility model is that a kind of simple in structure, easy for installation, valve element position detector of reliable in action and the axial type linkage structure of electro-hydraulic reversing valve are provided for prior art deficiency.
The purpose of this utility model is to realize by following measures: the axial type linkage structure of a kind of valve element position detector and electro-hydraulic reversing valve, and it comprises electro-hydraulic reversing valve, valve element position detector, it is characterized in that, also has spring, washer, back-up ring, the spool end shaft axis of described electro-hydraulic reversing valve is provided with the blind hole for the induction rod overhanging end insertion of valve element position detector, and the circlip groove on blind hole inwall, one side end cap outer side wall of electro-hydraulic reversing valve is provided with is with female cavity, the induction rod overhanging end termination of described valve element position detector is provided with convex shoulder, described spool blind hole, one side end cap cavity, induction rod three's shaft axis is overlapping, described induction rod overhanging end inserts spool blind hole, put into successively spring, washer, back-up ring is buckled in blind hole circlip groove, the sealing induction jacket casing of valve element position detector is on induction rod, and the outside thread by valve element position detector connecting head is tightened on the cavity internal thread of a side end cap of electro-hydraulic reversing valve.
Compared with prior art, the valve element position detector that the utility model proposes and the axial type linkage structure of electro-hydraulic reversing valve have been adopted, tool has the following advantages: this product is directly connected the induction rod of valve element position detector with spool, reliably spool operating state is showed, there is compact structure, easy for installation, validity is high, without the long feature of abrasion, life-span, also make maintaining become more convenient easy, be a propagable product simultaneously.
Accompanying drawing explanation
Fig. 1 is the example structure schematic diagram the utility model proposes.
Fig. 2 is Fig. 1 embodiment A portion enlarged view.
Embodiment
Below in conjunction with accompanying drawing, embodiment is elaborated: Fig. 1～Fig. 2 shows an embodiment of the present utility model.In figure, the axial type linkage structure of a kind of valve element position detector and electro-hydraulic reversing valve, it comprises: electro-hydraulic reversing valve 1, valve element position detector 2, spring 8, washer 6, back-up ring 9, the spool 7 end shaft axiss of described electro-hydraulic reversing valve 1 are provided with the blind hole for the induction rod 5 overhanging ends insertions of valve element position detector 2, and the circlip groove on blind hole inwall, one side end cap 3 outer side walls of electro-hydraulic reversing valve 1 are provided with is with female cavity, the induction rod 5 overhanging end terminations of described valve element position detector 2 are provided with convex shoulder, described spool 7 blind holes, one side end cap 3 cavitys, induction rod 5 threes' shaft axis is overlapping, described induction rod 5 overhanging ends insert spool 7 blind holes, put into successively spring 8, washer 6, back-up ring button 9 is in blind hole circlip groove, the sealing induction jacket casing of valve element position detector 2 is on induction rod 5, and the outside thread by valve element position detector 2 connecting heads is tightened on the cavity internal thread of a side end cap of electro-hydraulic reversing valve 1.
The induction rod of valve element position detector of the present utility model is directly connected with the spool of electro-hydraulic reversing valve, when moving, spool drive induction rod in company with action, the relative position of the induction sleeve of induction rod and valve element position detector changes, the machinery action of spool is converted to electrical signal, by the electrical signal of output, confirm whether the movement of spool puts in place, or provide the signal of reporting to the police or allowing normal operation.
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 (1)
1. an axial type linkage structure for valve element position detector and electro-hydraulic reversing valve, it comprises electro-hydraulic reversing valve, valve element position detector, it is characterized in that, also has spring, washer, back-up ring, the spool end shaft axis of described electro-hydraulic reversing valve is provided with the blind hole for the induction rod overhanging end insertion of valve element position detector, and the circlip groove on blind hole inwall, one side end cap outer side wall of electro-hydraulic reversing valve is provided with is with female cavity, the induction rod overhanging end termination of described valve element position detector is provided with convex shoulder, described spool blind hole, one side end cap cavity, induction rod three's shaft axis is overlapping, described induction rod overhanging end inserts spool blind hole, put into successively spring, washer, back-up ring is buckled in blind hole circlip groove, the sealing induction jacket casing of valve element position detector is on induction rod, and the outside thread by valve element position detector connecting head is tightened on the cavity internal thread of a side end cap of electro-hydraulic reversing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626649.5U CN203516293U (en) | 2013-10-11 | 2013-10-11 | Axial-type connecting structure for valve core position detector and electro-hydraulic directional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320626649.5U CN203516293U (en) | 2013-10-11 | 2013-10-11 | Axial-type connecting structure for valve core position detector and electro-hydraulic directional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516293U true CN203516293U (en) | 2014-04-02 |
Family
ID=50375229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320626649.5U Expired - Lifetime CN203516293U (en) | 2013-10-11 | 2013-10-11 | Axial-type connecting structure for valve core position detector and electro-hydraulic directional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516293U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276279A (en) * | 2015-07-23 | 2016-01-27 | 涌镇液压机械（上海）有限公司 | Pilot-operated type two-way integrated cartridge composite valve with position detection function |
| CN109058209A (en) * | 2018-10-25 | 2018-12-21 | 太重集团榆次液压工业有限公司 | Band position monitoring electro-hydraulic reversing valve |
| CN109099022A (en) * | 2018-09-29 | 2018-12-28 | 宁波诚天液压有限公司 | A kind of electro-hydraulic reversing valve |
| CN110778546A (en) * | 2019-11-01 | 2020-02-11 | 三一汽车制造有限公司 | Hydraulic control system, support leg device and control method |
-
2013
- 2013-10-11 CN CN201320626649.5U patent/CN203516293U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276279A (en) * | 2015-07-23 | 2016-01-27 | 涌镇液压机械（上海）有限公司 | Pilot-operated type two-way integrated cartridge composite valve with position detection function |
| CN109099022A (en) * | 2018-09-29 | 2018-12-28 | 宁波诚天液压有限公司 | A kind of electro-hydraulic reversing valve |
| CN109058209A (en) * | 2018-10-25 | 2018-12-21 | 太重集团榆次液压工业有限公司 | Band position monitoring electro-hydraulic reversing valve |
| CN110778546A (en) * | 2019-11-01 | 2020-02-11 | 三一汽车制造有限公司 | Hydraulic control system, support leg device and control 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: 20140402 |
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| CX01 | Expiry of patent term |