CN205104317U - Locking device of LVDT linear displacement sensor armature core - Google Patents
Locking device of LVDT linear displacement sensor armature core Download PDFInfo
- Publication number
- CN205104317U CN205104317U CN201520925429.1U CN201520925429U CN205104317U CN 205104317 U CN205104317 U CN 205104317U CN 201520925429 U CN201520925429 U CN 201520925429U CN 205104317 U CN205104317 U CN 205104317U
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- CN
- China
- Prior art keywords
- armature core
- connecting plate
- sphenoid
- expansion
- expansion pipe
- 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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Abstract
The utility model discloses a locking device of LVDT linear displacement sensor armature core, including expansion pipe, tie bolt, the wedge body and connecting plate, the expansion pipe comprises two lamella expansion pieces, two lamellas the expansion piece adopt O shape sealing washer restraint into the expansion pipe be equipped with in the expansion pipe the wedge body with tie bolt, tie bolt's head stretches out outside the one end of expansion pipe, the main aspects of the wedge body are stretched out outside the other end of expansion pipe, tie bolt with the wedge is personally experienced sth. Part of the body and is adopted threaded connection the rigid coupling of serving greatly of the wedge body has a connecting plate be equipped with the connection screw of armature core on the connecting plate. The utility model has the advantages of simple structure, convenient operation, the location is accurate, even if under utmost point adverse circumstances, also difficult not hard up, experimental effectual, the practicality is strong, long service life.
Description
Technical field
The utility model relates to the research field of LVDT transducer, particularly a kind of locking device of LVDT linear displacement transducer armature core.
Background technology
It is high that LVDT transducer (differential transformer displacement transducer) has precision, dynamic characteristic is good, reliable operation, easy to use, be applicable to the features such as use in the presence of a harsh environment, be widely used in all trades and professions of the national economy such as Aero-Space, machinery, weaving, railway, coal, metallurgy, plastics, chemical industry, be used for measuring the physical quantitys such as elongation, vibration, expansion, thickness.In use maximumly unfavorablely to be: when being arranged in elongated hole by armature core, often run into armature mandrel to not easily fixing situation, in order to address this problem, people have thought a lot of ways, but some complex structures, operate inconvenience; What have of long duration easily loosens, and causes certainty of measurement to decline, occurs the inaccurate situation of test data.
Summary of the invention
The utility model provides a kind of locking device accurately can locating LVDT linear displacement transducer armature core for solving in known technology the technical problem that exists.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is: a kind of locking device of LVDT linear displacement transducer armature core, comprise expansion tube, tightening bolt, sphenoid and connecting plate, described expansion tube is made up of two lobe expansion pieces, expansion piece described in two lobes adopts O-ring seals bundle to become described expansion tube, described sphenoid and described tightening bolt is provided with in described expansion tube, the head of described tightening bolt stretches out outside one end of described expansion tube, the large end of described sphenoid stretches out outside the other end of described expansion tube, described tightening bolt adopts with described sphenoid and is threaded, the large end of described sphenoid is connected with connecting plate, described connecting plate is provided with the connecting screw hole of armature core.
Described tightening bolt adopts hexagon socket head cap screw.
Described connecting plate adopts the large end of connecting bolt and described sphenoid affixed.
The advantage that the utility model has and good effect are: adopt sphenoid to open expansion piece, by adjusting the axial location of sphenoid, by the effect of lozenges, the radial displacement of two pieces of expansion pieces can be realized, wedged plate is made to compress hole wall tightly, sealing ring both can play the effect of sealing, also can increase the frictional force of expansion piece and hole wall, conveniently and exactly fixation of sensor armature core position.And it is simple that the utility model has structure, and easy to operate, accurate positioning, even if under the adverse circumstances of pole, also not easily loosen, test effect is good, practical, the advantages such as long service life.
Accompanying drawing explanation
Fig. 1 is external structure schematic diagram of the present utility model;
Fig. 2 is the D-D cutaway view of Fig. 1.
In figure: 1, tightening bolt, 2, expansion tube, 3, O-ring seals, 4, sphenoid, 5, connecting plate, 6,7.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 ~ Fig. 2, a kind of locking device of LVDT linear displacement transducer armature core, comprise expansion tube 2, tightening bolt 1, sphenoid 4 and connecting plate 5, described expansion tube 2 is made up of two lobe expansion pieces, expansion piece described in two lobes adopts O-ring seals 3 to restraint into described expansion tube 2, described sphenoid 4 and described tightening bolt 1 is provided with in described expansion tube 2, the head of described tightening bolt 1 stretches out outside one end of described expansion tube 2, the large end of described sphenoid 4 stretches out outside the other end of described expansion tube 2, described tightening bolt 1 adopts with described sphenoid 4 and is threaded, the large end of described sphenoid 4 is connected with connecting plate 5, described connecting plate 5 is provided with the connecting screw hole of armature core.
In the present embodiment, described tightening bolt 1 adopts hexagon socket head cap screw.Described connecting plate 5 adopts connecting bolt 6 affixed with the large end of described sphenoid 4.
During use, first the armature core of LVDT transducer is connected with the connecting screw hole on connecting plate 5, then this locking device is inserted in the hole of measured workpiece, after arriving precalculated position, the other end in hole inserts inner hexagon spanner, twisting hexagon socket head cap screw, pulls sphenoid, due to the effect of wedge surface, expansion piece is outwards opened, be pressed on hole wall, realize fixing, and then the armature core position of transducer is fixed.
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection range of the present utility model.
Claims (3)
1. the locking device of a LVDT linear displacement transducer armature core, it is characterized in that, comprise expansion tube, tightening bolt, sphenoid and connecting plate, described expansion tube is made up of two lobe expansion pieces, expansion piece described in two lobes adopts O-ring seals bundle to become described expansion tube, described sphenoid and described tightening bolt is provided with in described expansion tube, the head of described tightening bolt stretches out outside one end of described expansion tube, the large end of described sphenoid stretches out outside the other end of described expansion tube, described tightening bolt adopts with described sphenoid and is threaded, the large end of described sphenoid is connected with connecting plate, described connecting plate is provided with the connecting screw hole of armature core.
2. the locking device of LVDT linear displacement transducer armature core according to claim 1, is characterized in that, described tightening bolt adopts hexagon socket head cap screw.
3. the locking device of LVDT linear displacement transducer armature core according to claim 1, is characterized in that, described connecting plate adopts the large end of connecting bolt and described sphenoid affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925429.1U CN205104317U (en) | 2015-11-19 | 2015-11-19 | Locking device of LVDT linear displacement sensor armature core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925429.1U CN205104317U (en) | 2015-11-19 | 2015-11-19 | Locking device of LVDT linear displacement sensor armature core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104317U true CN205104317U (en) | 2016-03-23 |
Family
ID=55520079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925429.1U Expired - Fee Related CN205104317U (en) | 2015-11-19 | 2015-11-19 | Locking device of LVDT linear displacement sensor armature core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418160A (en) * | 2018-05-04 | 2018-08-17 | 抚顺欧柏丽实业股份有限公司 | Cable and pipeline run through sealing device and compression assembly |
-
2015
- 2015-11-19 CN CN201520925429.1U patent/CN205104317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418160A (en) * | 2018-05-04 | 2018-08-17 | 抚顺欧柏丽实业股份有限公司 | Cable and pipeline run through sealing device and compression assembly |
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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: 20160323 Termination date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |