CN201402114Y - Displacement measuring line tensioning mechanism of rock stratum displacement monitor - Google Patents
Displacement measuring line tensioning mechanism of rock stratum displacement monitor Download PDFInfo
- Publication number
- CN201402114Y CN201402114Y CN2009201066439U CN200920106643U CN201402114Y CN 201402114 Y CN201402114 Y CN 201402114Y CN 2009201066439 U CN2009201066439 U CN 2009201066439U CN 200920106643 U CN200920106643 U CN 200920106643U CN 201402114 Y CN201402114 Y CN 201402114Y
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- displacement
- take
- friction pulley
- rotating shaft
- displacement monitor
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Abstract
A displacement measuring line tensioning mechanism of a rock stratum displacement monitor comprises a supporting table, a rotating shaft and take-up reels. The supporting table is arranged on the lower side of a casing of the rock stratum displacement monitor, the rotating shaft is fixed on the supporting tale, two sides of the rotating shaft are equipped with the take-up reels, wherein friction wheels are sleeved on the outer sides of the take-up reels on the rotating shaft, and the friction wheels are connected with a tension device. The displacement measuring line tensioning mechanism of arock stratum displacement monitor does not limit measuring range of the rock stratum displacement monitor, and tension force of the measuring line is constant.
Description
Technical field
The utility model relates to a kind of gauging instrument, particularly a kind of strata displacement monitor displacement survey line tightening system.
Background technology
On the strata displacement surveying instrument, the tightening system of displacement measurement backguy will directly have influence on the accuracy and the range of displacement measuring instrument.At present, the instrument that is used for rock stratum, tunnel internal displacement monitoring in the underground works, the tightening system of its displacement measurement backguy adopts disc type wind spring span wire system more, the range of monitor depends on the amount of contraction of wind spring, be confined to about 200mm, and the tightening force of displacement measurement backguy changes along with the variation of wind spring contraction more.
The utility model content
For addressing the above problem, the utility model provides a kind of constant strata displacement monitor displacement survey line tightening system of tightening force that does not limit strata displacement monitor range and displacement measurement backguy.
The utility model strata displacement monitor displacement survey line tightening system, comprise supporting station, rotating shaft, take-up reel, described supporting station is installed in strata displacement monitor housing downside, and described rotating shaft is fixed on the described supporting station, described take-up reel is installed in described rotating shaft both sides, wherein:
Be with friction pulley in the described rotating shaft in the described take-up reel outside; Described friction pulley is connected with tensioning system.
The utility model strata displacement monitor displacement survey line tightening system, wherein: described tensioning system is the holddown spring that is enclosed within the take-up torsion spring on the described friction pulley and is positioned at the described friction pulley outside, one end of described take-up torsion spring is fixed on the wheel hub of described friction pulley, the other end is fixed on the strata displacement monitor housing, and described holddown spring right-hand member is pressed on the setting nut.
The utility model strata displacement monitor displacement survey line tightening system, wherein: described tensioning system is the torsion spring that compresses in the described friction pulley outside, a described end that compresses torsion spring is fixed on the wheel hub of described friction pulley, the other end is fixed on the strata displacement monitor housing, and the described torsion spring right-hand member that compresses is pressed on the setting nut.
The utility model strata displacement monitor displacement survey line tightening system makes by take-up reel, friction pulley, tensioning system and remains constant tension force in the displacement measurement backguy, friction force maximum between this tension force and take-up reel and the friction pulley equates, and can adjust the size of this tension force by setting nut.When producing displacement because of the displacement measurement backguy when making pulling force in the displacement measurement backguy greater than the maximum static friction force between take-up reel and the friction pulley, take-up reel is still rotatable, thereby the range of strata displacement monitor is not subjected to the restriction of displacement survey line tightening system.
Description of drawings
Fig. 1 is the front view of first kind of embodiment of the utility model strata displacement monitor displacement survey line tightening system;
Fig. 2 is the front view of second kind of embodiment of the utility model strata displacement monitor displacement survey line tightening system.
Embodiment
Below in conjunction with Figure of description the utility model strata displacement monitor displacement survey line tightening system is described further.
Fig. 1 is the front view of first kind of embodiment of the utility model strata displacement monitor displacement survey line tightening system; Supporting station 14A is installed in strata displacement monitor housing downside, supporting station 14A is made by duroplasts, one metal rotating shaft 6B is fixed on the supporting station 14A, the take-up reel 13A that is made by duroplasts is installed on the metal rotating shaft 6B of supporting station 14A both sides from inside to outside successively, 13B, duroplasts friction pulley 12A, 12B, holddown spring 11A, 11B, setting nut 10A, 10B.
Take-up torsion spring 9A, 9B are enclosed within described friction pulley 12A, in the groove at 12B edge, torsion spring 9A, the spring arm of 9B is fixed on friction pulley 12A, on the wheel hub of 12B, another spring arm is fixed on the housing, holddown spring 11A, and 11B one end is pressed in friction pulley 12A, on the 12B, the other end is by regulating bolt 10A, and 10B makes friction pulley 12A, and 12B compresses take- up reel 13A, 13B, displacement survey line 8A, 8B is around take-up reel 13A, on the 13B, displacement survey line 8A, the end of 8B passes the lower wall of housing, is fixed on the displacement wheel in the housing, when displacement wheel is rotated, by displacement survey line 8A, 8B drives take- up reel 13A, and 13B rotates synchronously, under the friction force effect, friction pulley 12A, 12B and torsion spring 9A, the spring arm of 9B will be with take- up reel 13A, and 13B rotates together, torsion spring 9A, 9B produces and displacement survey line 8A, and the restoring force that the 8B pulling force equates is as displacement survey line 8A, the 8B pulling force is greater than take-up reel 13A, when 13B and friction pulley 12A, maximum static friction force between the 12B, take- up reel 13A, 13B is rotated further overcome friction, and torsion spring 9A, the restoring force of 9B all the time with displacement survey line 8A, the 8B pulling force balances each other, make displacement survey line 8A, 8B is in tension all the time.
Fig. 2 is the front view of second kind of embodiment of the utility model strata displacement monitor displacement survey line tightening system, the take-up reel 13A ' that is made by duroplasts is installed on the metal rotating shaft 6B ' of supporting station 14A ' both sides from inside to outside successively, 13B ', duroplasts friction pulley 12A ', 12B ', compress torsion spring 11A ', 11B ', setting nut 10A ', 10B '.Compress torsion spring 11A ', the spring arm of 11B ' is fixed on friction pulley 12A ', and on the wheel hub of 12B ', another spring arm is fixed on the strata displacement monitor housing.Compress torsion spring 11A ', two spring arms of 11B ' have played torsion spring 9A in first kind of embodiment, expansionary force after the effect of the generation restoring force of 9B, himself axial compression can also play holddown spring 11A in first kind of embodiment, the effect of the adjusting degree of tightness of 11B simultaneously.The principle of work of second kind of embodiment is identical with first kind of embodiment.
Above two embodiment adopt torsion tensioning system ( torsion spring 9A, 9B, compress torsion spring 11A ', 11B ') as the tensioning system of friction pulley, in addition, the tensioning system of friction pulley also can be selected any forms that possess elastic force such as wind spring, extension spring or stage clip for use as required.
Above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineering technical personnel in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (3)
1. strata displacement monitor displacement survey line tightening system, comprise supporting station (14A, 14A '), rotating shaft (6B, 6B '), take-up reel (13A, 13B, 13A ', 13B '), described supporting station (14A, 14A ') is installed in strata displacement monitor housing downside, and described rotating shaft (6B, 6B ') is fixed on the described supporting station (14A, 14A '), described take-up reel (13A is installed in described rotating shaft (6B, 6B ') both sides, 13B, 13A ', 13B '), it is characterized in that:
Be with friction pulley (12A, 12B, 12A ', 12B ') in the described rotating shaft (6B, 6B ') in described take-up reel (13A, 13B, 13A ', the 13B ') outside; Described friction pulley (12A, 12B, 12A ', 12B ') is connected with tensioning system.
2. strata displacement monitor displacement survey line tightening system according to claim 1, it is characterized in that: described tensioning system is to be enclosed within described friction pulley (12A, take-up torsion spring (9A 12B), 9B) and be positioned at described friction pulley (12A, 12B) Wai Ce holddown spring (11A, 11B), described take-up torsion spring (9A, end 9B) is fixed on described friction pulley (12A, on wheel hub 12B), the other end is fixed on the strata displacement monitor housing, described holddown spring (11A, 11B) right-hand member be pressed in setting nut (10A, 10B) on.
3. strata displacement monitor displacement survey line tightening system according to claim 1, it is characterized in that: described tensioning system be described friction pulley (12A ', 12B ') outside compress torsion spring (11A ', 11B '), described compress torsion spring (11A ', 11B ') a end be fixed on described friction pulley (12A ', 12B ') on the wheel hub, the other end is fixed on the strata displacement monitor housing, described compress torsion spring (11A ', 11B ') right-hand member is pressed on the setting nut (10A ', 10B ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201066439U CN201402114Y (en) | 2009-03-31 | 2009-03-31 | Displacement measuring line tensioning mechanism of rock stratum displacement monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201066439U CN201402114Y (en) | 2009-03-31 | 2009-03-31 | Displacement measuring line tensioning mechanism of rock stratum displacement monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402114Y true CN201402114Y (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201066439U Expired - Fee Related CN201402114Y (en) | 2009-03-31 | 2009-03-31 | Displacement measuring line tensioning mechanism of rock stratum displacement monitor |
Country Status (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929845A (en) * | 2010-08-24 | 2010-12-29 | 安里千 | Roadway surrounding rock separation layer displacement monitor |
| CN102953365A (en) * | 2012-11-23 | 2013-03-06 | 同济大学 | Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer |
| CN102953364A (en) * | 2012-11-23 | 2013-03-06 | 同济大学 | Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer |
| CN103015389A (en) * | 2012-12-12 | 2013-04-03 | 同济大学 | Multi-layer telescopic multi-point displacement meter anchor head for water-rich soft stratum |
| CN105173927A (en) * | 2015-08-27 | 2015-12-23 | 济南大学 | Main shaft type torsion rope receiving device |
| CN107243578A (en) * | 2017-08-04 | 2017-10-13 | 南京晨光集团有限责任公司 | Take-up mechanism is pre-processed based on caesium system |
| CN107664472A (en) * | 2016-07-27 | 2018-02-06 | 约翰内斯·海德汉博士有限公司 | Linear measure longimetry mechanism |
-
2009
- 2009-03-31 CN CN2009201066439U patent/CN201402114Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929845A (en) * | 2010-08-24 | 2010-12-29 | 安里千 | Roadway surrounding rock separation layer displacement monitor |
| CN102953365A (en) * | 2012-11-23 | 2013-03-06 | 同济大学 | Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer |
| CN102953364A (en) * | 2012-11-23 | 2013-03-06 | 同济大学 | Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer |
| CN102953364B (en) * | 2012-11-23 | 2014-12-10 | 同济大学 | Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer |
| CN102953365B (en) * | 2012-11-23 | 2014-12-10 | 同济大学 | Multilayer blade-typed multipoint displacement metre anchor head used for soft soil layer |
| CN103015389A (en) * | 2012-12-12 | 2013-04-03 | 同济大学 | Multi-layer telescopic multi-point displacement meter anchor head for water-rich soft stratum |
| CN105173927A (en) * | 2015-08-27 | 2015-12-23 | 济南大学 | Main shaft type torsion rope receiving device |
| CN107664472A (en) * | 2016-07-27 | 2018-02-06 | 约翰内斯·海德汉博士有限公司 | Linear measure longimetry mechanism |
| CN107243578A (en) * | 2017-08-04 | 2017-10-13 | 南京晨光集团有限责任公司 | Take-up mechanism is pre-processed based on caesium system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20140331 |