CN2057509U - Steel string type displacement sensor - Google Patents
Steel string type displacement sensor Download PDFInfo
- Publication number
- CN2057509U CN2057509U CN 89216169 CN89216169U CN2057509U CN 2057509 U CN2057509 U CN 2057509U CN 89216169 CN89216169 CN 89216169 CN 89216169 U CN89216169 U CN 89216169U CN 2057509 U CN2057509 U CN 2057509U
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- China
- Prior art keywords
- spring
- type displacement
- sleeve pipe
- string type
- guide pole
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- 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.)
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Abstract
A steel string type displacement sensor for measuring the relative displacement between a roof and a floor, which is mainly comprises a range rod (3), a dust cap (4), a sleeve tube (5), etc. The utility model is characterized in that the lower end of the sleeve tube (5) is provided with a string type pressure sensor (10); a spring (7) is arranged in the sleeve tube (5); a guide rod (6) is arranged in the spring (7). The steel string type displacement sensor can be used as a secondary meter to detect automatically and remotely, whose superiority can be displayed in particular to a dangerous place where people can not enter and read the value.
Description
The utility model is a kind of sensor that is used for mine stope and the relative displacement of tunnel measurement roof and floor, is a kind of novel displacement transducer.
Original displacement transducer is a kind of mechanical type displacement transducer, and it can not detect automatically, more can not detect at a distance, and it needs artificial reading, and the hazardous area can't be used.
The purpose of this utility model is to design and a kind ofly novel is applicable to what used the hazardous area, can detect automatically, and automatic telemetering a kind of is used for mine stope and tunnel and measures the steel chord type displacement transducer that roof and floor relative displacement, roof and floor shift near speed.
The utility model mainly is made up of range bar (3), dust cap (4), sleeve pipe (5) etc., it is characterized in that being equipped with a string formula pressure transducer (10) in the lower end of sleeve pipe (5), be provided with spring (7) in the sleeve pipe (5), guide pole (6) is housed in the spring (7).
The utility model has the advantages that simple in structurely, reliable operation can detect automatically, and automatic telemetering is particularly useful for the place that the hazardous area people are difficult for entering reading and installs use.
Description of drawings: comprise supporting (1), extension bar (2), range bar (3), dust cap (4), sleeve pipe (5), guide pole (6), spring (7), Cylinder (8), outshot (9), string formula pressure transducer (10), working film (11), string wire post (12), string wire (13), headplate (14), excitation variable winding (15), inductive coil (16), socket (17), adjuster bar (18) among the figure.
Now in conjunction with the accompanying drawings this utility model structure and principle of work are described further.This utility model is mainly by range bar (3), dust cap (4), sleeve pipe compositions such as (5), string formula pressure transducer (10) is equipped with in the lower end of sleeve pipe (5), in sleeve pipe (5), be provided with spring (7), guide pole (6) is housed in the spring (7), the effect of guide pole (6) is to prevent that the stressed bending of spring (7) from contacting with sleeve pipe (5) inwall, the lower end of spring (7) is fixed on the boss of working film (11), upper end assembled all-in-one-piece range bar (3), guide pole (6) and dust cap (4) institute are spacing, one garden post part (8) is arranged in the upper end of guide pole (6), the outshot (9) of one diameter greater than garden post (8) diameter arranged again on the garden post (8), the end face of outshot (9) is a circular arc, in sleeve pipe (5), play the guiding role, outshot (9) adopts movingly with sleeve pipe (5) inwall, the guide pole (6) and the combination physical efficiency of range bar (3) are moved freely in sleeve pipe (5), and friction force is very little.Dust cap (4) plays dustproof position-limiting action, and the range bar has scale on (3), and the roof and floor relative shift what can be known a little.The principle of work of this utility model is, when roof and floor shifts near, range bar (3) pressurized, spring (7) is compressed, the masterpiece that is directly proportional with the amount of shifting near is used for working film (11), the stressed back deflection of working film (11), make string wire (13) tensioning, the vibration frequency of string (13) raises, by connectorized cable corresponding secondary instrument is received on the socket (17) of string formula pressure transducer, the vibration frequency of excitation-detection string is looked into the calibration table, or by formula calculating, just roof and floor relative shift and roof and floor shift near speed as can be known.
The partial parameters of this utility model is as follows:
The scale that 0～100mm is arranged on the range bar (3), external diameter φ=the 18mm of spring (7), spring steel wire diameter phi=3.2mm, long 400mm, between guide pole (6) and spring (7) internal diameter about gapped 0.5mm, gap greater than 2mm is arranged between sleeve pipe (5) internal diameter and the spring external diameter, and it is 88210916.2 movable diagram subtense type pressure transducer that string formula pressure transducer can adopt the patent No..
Claims (3)
1, a kind of steel chord type displacement transducer of forming by range bar (3), dust cap (4), sleeve pipe (5) etc. that is used for mine stope and the relative displacement of tunnel measurement roof and floor, it is characterized in that being equipped with a string formula pressure transducer (10) in the lower end of sleeve pipe (5), be provided with a spring (7) in the sleeve pipe (5), guide pole (6) is housed in the spring (7).
2, steel chord type displacement transducer according to claim 1 is characterized in that the lower end of spring (7) is fixed on the boss of working film (11), and upper end assembled all-in-one-piece range bar (3), guide pole (6) and dust cap (4) institute are spacing.
3, steel chord type displacement transducer according to claim 1 is characterized in that there is a garden post part (8) upper end of guide pole (6), and the outshot (9) of a diameter greater than the garden column diameter arranged again on the post of garden, and the end face of outshot (9) is the garden arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216169 CN2057509U (en) | 1989-11-06 | 1989-11-06 | Steel string type displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216169 CN2057509U (en) | 1989-11-06 | 1989-11-06 | Steel string type displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057509U true CN2057509U (en) | 1990-05-23 |
Family
ID=4871643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89216169 Granted CN2057509U (en) | 1989-11-06 | 1989-11-06 | Steel string type displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057509U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603868B (en) * | 2009-07-12 | 2011-02-09 | 邓铁六 | High-accuracy vibrating wire pressure sensor |
| CN102426003A (en) * | 2011-09-09 | 2012-04-25 | 江苏三恒科技集团有限公司 | Mineral roof and floor convergence sensor |
| CN102519411A (en) * | 2011-10-28 | 2012-06-27 | 中国矿业大学(北京) | Roadway roof displacement precise detecting device and detecting method |
| CN108106538A (en) * | 2017-12-06 | 2018-06-01 | 山西宏安翔科技股份有限公司 | A kind of colliery roof to floor convergence sensor |
-
1989
- 1989-11-06 CN CN 89216169 patent/CN2057509U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603868B (en) * | 2009-07-12 | 2011-02-09 | 邓铁六 | High-accuracy vibrating wire pressure sensor |
| CN102426003A (en) * | 2011-09-09 | 2012-04-25 | 江苏三恒科技集团有限公司 | Mineral roof and floor convergence sensor |
| CN102519411A (en) * | 2011-10-28 | 2012-06-27 | 中国矿业大学(北京) | Roadway roof displacement precise detecting device and detecting method |
| CN108106538A (en) * | 2017-12-06 | 2018-06-01 | 山西宏安翔科技股份有限公司 | A kind of colliery roof to floor convergence sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |