CN2175407Y - Flexible sensor for measuring bit shift - Google Patents
Flexible sensor for measuring bit shift Download PDFInfo
- Publication number
- CN2175407Y CN2175407Y CN 93245539 CN93245539U CN2175407Y CN 2175407 Y CN2175407 Y CN 2175407Y CN 93245539 CN93245539 CN 93245539 CN 93245539 U CN93245539 U CN 93245539U CN 2175407 Y CN2175407 Y CN 2175407Y
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- China
- Prior art keywords
- housing
- fixed
- potential device
- revolving
- spiral pulley
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- Expired - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to a flexible sensor for measuring bit shift, which is composed of a swivel potentiometer fixed in a housing, a screw pulley fixedly sheathed on the swivel of the swivel potentiometer, a flexible string winded in the thread groove on the screw pulley, a sleeve barrel and a central axis mechanism guiding the flexible string to move in the thread groove, and an elastic component, such as a series machine walking piece arranged on the screw pulley or a stationary means relative to the housing to pull out the flexible string to bear a restoring force while driving the swivel potentiometer to rotate. The flexible sensor for measuring bit shift not only has the advantages of wide range of measurement, non-interference and high distinguishability, but also can measure changeable shift with changeable direction.
Description
The utility model relates to displacement transducer, relates in particular to a kind of flexible displacement transducer.
In the market long displacement transducers of seeing are the differential transformer type linear displacement transducer more, as the TD-1 type servomotor stroke sensor that Wuxi City sensor factory produces, TDZ-1A-80 type combination bit displacement sensor and TDZ-1 type intermediate frequency displacement transducer etc.This class sensor all has guide rail and measures the carriage release lever structure and use Alternating Current Power Supply.Therefore, this class sensor is narrow except range of displacement measurement, be subject to the shortcomings such as interference, its disadvantage is because its guide rail straight-bar structure can only be carried out the measurement of directed displacement, and can not be to the change in displacement that causes such as the distortion that produces after the electric pole loading time, the amount of flexibility (promptly being out of shape the chord length between back 2) of following direction to change be measured.
In order to solve the problems referred to above that prior art exists, the utility model provides a kind of flexible displacement transducer, follows the displacement between 2 that direction changes to measure when its fundamental purpose is to solve for change in displacement.
Another purpose of the present utility model is to provide that a kind of range of displacement measurement is wide, resolution is high, the flexible displacement measurement sensor of strong anti-interference performance.
A kind of flexible displacement transducer that the utility model provides, it comprises: one revolves the shaft potential device; One spiral pulley; One elastic component; One flexible string; One axle; One cylindrical sleeve and a housing is characterized in that, the described shaft potential device that revolves is fixed in the described housing; Described spiral pulley cover is fixed in described the revolving on the axle of shaft potential device of revolving; The outside surface on the face of cylinder of described spiral pulley is shaped on thread groove, and described flexible string is wound in the described thread groove, and the one end is fixed on the described spiral pulley, and its other end freely stretches out described housing; Described cylindrical sleeve is sleeved on the described axle rotationally, and described axle is fixed in the described housing and described cylindrical sleeve is in and can make described flexible string along on the position that described thread groove turnover is moved; Described elastic component is arranged on to pull out and drive along described thread groove and described cylindrical shroud tube outer surface by its other end that freely stretches out housing when described flexible string and describedly described spiral pulley is subjected on the position of a restoring force when revolving the rotation of shaft potential device.
Displacement between 2 that its direction also changed when as above the of the present utility model flexible displacement transducer of Gou Chenging can not only Displacement Measurement changes, but also have that measurement range is wide, resolution is high, strong anti-interference performance, advantage such as easy to use.
Describe the utility model in detail below in conjunction with drawings and Examples.
Fig. 1 is the structure cut-away view of the utility model one preferred embodiment;
Right diagrammatic sketch when Fig. 2 opens for Fig. 1 right shell body.
Referring to Fig. 1, Fig. 2, this two figure is the structure cut-away view of a preferred embodiment of the flexible displacement transducer of the utility model.The flexible displacement transducer of this embodiment comprises as seen from the figure: revolve shaft potential device 1, and bearing 2, axle 3, sleeve 4, spiral pulley 5, axle sleeve 6, the system machine is walked bar 7, flexible string wire 8, electrical outlets 9, displacement measurement connector 13 and housing 15 are formed.Revolve shaft potential device 1 and be fixed in leftward space in the housing 15.Axle sleeve 6 is rounded, the center drilling by its bottom slide over the bottom of revolving a 1a of revolving shaft potential device 1 and axle sleeve 6 is fixed in housing 1 or the support that links with housing 1 on.Spiral pulley 5 is the cylindrical shape of an end opening, its other end core outstanding laterally one has the right cylinder 5a of central through hole, and the central through hole of spiral pulley 5 by right cylinder 5a is sleeved on a 1a that revolves who revolves shaft potential device 1 and goes up and be fixed in the end of revolving a 1a with securing members such as screw pin members.Be shaped on thread groove on the external cylindrical surface of spiral pulley 5, flexible string wire 8 is wound in the described thread groove, and the one end is fixed on the described spiral pulley 5.Its other end freely stretches out housing 15.Bearing 2 is arranged between the inside surface of openend of the outer circumference surface of round sleeve 6 and cylindrical shape spiral pulley 5.Sleeve 4 slides on the axle 3, the two ends of axle 3 be fixed on the housing 15 and make the outer peripheral face of sleeve 4 and the outer peripheral face of spiral pulley 5 between minimum distance less than the diameter of flexible string wire, pull out or regain when driving spiral pulley 5 rotations all the time along described thread groove with the flexible string wire 8 of box lunch and to move and unlikely disengaging thread groove forms disorderly around causing measuring error.The system machine is walked bar 7, and to be commonly called as " clockwork spring " be an elastic component, the system machine is walked bar 7 makes the one end be fixed on the inwall of housing 15 being under the state of nature of no restoring force, on the right cylinder 5a of the spiral pulley 5 when its other end is fixed in and revolves shaft potential device 1 and be in reference position.The effect that the system machine is walked bar 7 is to make when flexible string wire 8 is outwards pulled out by the testee displacement flexible string wire 8 to be subjected to a restoring force, this restoring force makes flexible string wire 8 be in tensioned state on the one hand when measuring and has avoided measuring error, makes sensor string wire 8 automatic drawing backs and drive revolve shaft potential device 1 on the other hand after measurement finishes and gets back on the initial zero-bit.Electrical outlets 9 is located on the housing 15, supply with the electric power revolve shaft potential device 1 and the signal that changes with tested displacement because of potentiometer resistance all from these socket 9 turnover.Displacement measurement connector 13 is arranged near on the housing 15 of spiral pulley 5, and it has the connector lug 11 of fixedlying connected with free external part flexible string wire 8 draw ring 12 by a center and housing round bar 10 15 internal communications and that be fixed in outside and and forms.
When measuring the displacement of the arbitrary geometric point on the object, as long as the draw ring on the connector 10 of flexible sensor is fixed in tested geometric point, no matter how this geometric point its direction in change in displacement changes, and all can measure the starting point of this motion geometric point and the displacement between the terminating point.
Describe each functions of components structure of flexible displacement transducer one preferred embodiment of the present utility model and the structure that mutually combines thereof and displacement measurement principle above in detail.Structurally can do many variations according to the principle of compositionality that the foregoing description disclosed.As revolve shaft potential device 1 and can be the single-turn or multi-turn potentiometer, the flexible string of materials such as also available other nylon of flexible string wire 8 replaces, and the system machine walks that bar 7 can be general volute spring or special constant force spring constitutes.The setting of bearing 2, axle sleeve 6 is to revolve the suffered torsional moment of a 1a and the utility model purpose and do not have and contact directly in order to reduce.Bearing 2, axle sleeve 6 also can save need not, the anti-cover of spiral pulley 5 can be fixed in the bottom of revolving a 1a this moment and make that to revolve the suffered torsional moment of a 1a also little, spiral pulley 5 also can be made general solid pulley structure cover and is fixed in and revolves on the 1a simultaneously.The system machine is walked bar 7 also can be arranged on the interior space of cylindrical shape spiral pulley 5 for it, and the one end is fixed on the internal perisporium of pulley 5, and the other end is fixed in respect on the motionless member such as axle sleeve 6 of housing 15.Electrical outlets 9 and displacement measurement connector 10 all are for the convenience on using, and they and main goal of the invention of the present utility model do not have yet and contact directly.And for example, the minor increment of the outside surface of the outside surface of sleeve 4 and pulley 5 when using nylon to replace flexible guiding principle string 8, can not be limited with above-mentioned required distance because the rigidity of nylon is very little.
Therefore, above-mentioned embodiment illustrated in figures 1 and 2 can not limit protection domain of the present utility model, and the utility model substantial structure required for protection will be limited by appended claims.
Claims (5)
1, a kind of flexible displacement transducer, it comprises: one revolves the shaft potential device; One spiral pulley; One elastic component; One flexible string; One axle; One cylindrical sleeve and a housing is characterized in that, the described shaft potential device that revolves is fixed in the described housing; Described spiral pulley cover is fixed in described the revolving on the axle of shaft potential device of revolving; The outside surface on the face of cylinder of described spiral pulley is shaped on thread groove, and described flexible string is wound in the described thread groove, and the one end is fixed on the described spiral pulley, and its other end freely stretches out described housing; Described cylindrical sleeve is sleeved on the described axle rotationally, and described axle is fixed in the described housing and described cylindrical sleeve is in and can make described flexible string along on the position that described thread groove turnover is moved; Described elastic component is arranged on to be pulled out and drives described when revolving the rotation of shaft potential device when described flexible string along described thread groove and described cylindrical shroud tube outer surface by its other end that freely stretches out housing, described spiral pulley is subjected on the position of a restoring force.
2, displacement transducer as claimed in claim 1, it is characterized in that, described spiral pulley can be the cylindrical shape of an end opening, its other end core outstanding laterally one has the right cylinder of central through hole, and described spiral pulley is fixed in described the revolving on the axle of shaft potential device of revolving by this cylindrical central through hole cover.
3, displacement transducer as claimed in claim 2, it is characterized in that, can be in the cylindrical shape of described spiral pulley and describedly revolve revolving of shaft potential device a round sleeve is set between the axle, described axle sleeve is fixed in the described housing and is sleeved on described the revolving on the axle of shaft potential device of revolving by its center drilling with being slidingly matched, on the outer circumference surface of described round sleeve and between the drum type inner surface of described spiral pulley a bearing can be set further.
4, displacement transducer as claimed in claim 1, it is characterized in that, described elastic component can be the machine of unifying and walks bar, described system machine is walked bar, and the one end is fixed on the described housing under the state of nature of no restoring force being in, and its other end is fixed on the described right cylinder of described described spiral pulley when revolving the shaft potential device and being in reference position.
5, as claim 1,2,3 or 4 described displacement transducers, it is characterized in that, on the close described housing of described spiral pulley end, can be provided with a displacement measurement connector for the flexible string turnover, described measurement connector can be made up of the connector lug of fixedlying connected with the described flexible string other end that a center and described enclosure interior round bar and that link up and that be fixed in described outside has draw ring; On near the described described housing that revolves shaft potential device one side, can be provided with the described shaft potential device is connected usefulness with external electrical the electrical outlets that revolves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245539 CN2175407Y (en) | 1993-11-29 | 1993-11-29 | Flexible sensor for measuring bit shift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245539 CN2175407Y (en) | 1993-11-29 | 1993-11-29 | Flexible sensor for measuring bit shift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2175407Y true CN2175407Y (en) | 1994-08-24 |
Family
ID=33818457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93245539 Expired - Fee Related CN2175407Y (en) | 1993-11-29 | 1993-11-29 | Flexible sensor for measuring bit shift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2175407Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102016512B (en) * | 2008-04-11 | 2013-03-27 | 拉姆伯斯公司 | Displacement sensing using a flexible substrate |
| CN103712856A (en) * | 2013-11-18 | 2014-04-09 | 国家电网公司 | Mechanical static load performance testing platform of low pressure metering box |
| CN105973316A (en) * | 2016-07-28 | 2016-09-28 | 国网山西省电力公司忻州供电公司 | Sensor fixing device |
| CN108222994A (en) * | 2017-12-26 | 2018-06-29 | 山东科技大学 | Coal working face stent alignment system and method |
-
1993
- 1993-11-29 CN CN 93245539 patent/CN2175407Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102016512B (en) * | 2008-04-11 | 2013-03-27 | 拉姆伯斯公司 | Displacement sensing using a flexible substrate |
| CN103712856A (en) * | 2013-11-18 | 2014-04-09 | 国家电网公司 | Mechanical static load performance testing platform of low pressure metering box |
| CN105973316A (en) * | 2016-07-28 | 2016-09-28 | 国网山西省电力公司忻州供电公司 | Sensor fixing device |
| CN105973316B (en) * | 2016-07-28 | 2018-03-30 | 国网山西省电力公司忻州供电公司 | Sensor fastening device |
| CN108222994A (en) * | 2017-12-26 | 2018-06-29 | 山东科技大学 | Coal working face stent alignment system and method |
| CN108222994B (en) * | 2017-12-26 | 2019-12-17 | 山东科技大学 | Coal face support positioning system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |