CN102322790A - Displacement sensor for detecting steel strip-conveying deviation - Google Patents
Displacement sensor for detecting steel strip-conveying deviation Download PDFInfo
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- CN102322790A CN102322790A CN201110141013A CN201110141013A CN102322790A CN 102322790 A CN102322790 A CN 102322790A CN 201110141013 A CN201110141013 A CN 201110141013A CN 201110141013 A CN201110141013 A CN 201110141013A CN 102322790 A CN102322790 A CN 102322790A
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Abstract
The invention discloses a displacement sensor for detecting steel strip-conveying deviation, which comprises a mandrel, a U-shaped holder, a rotary sleeve, a bearing, a shaft circlip, a hole circlip, an upper dustproof cover, a lower dustproof cover, nuts, guide rod assemblies, a mounting plate, a dust cap, first tube clamps, second tube clamps, an LVDT (Linear Variable Differential Transformer) displacement sensor, rubber dustproof sleeves and dustproof rings, wherein the guide rod assemblies and the LVDT displacement sensor are respectively fixed on the mounting plate by the first tube clamps and the second tube clamps; the U-shaped holder is mounted on the guide rod assemblies and is fixed by the nuts; the mandrel is mounted on the U-shaped holder and is fixed by the nuts; and the rotary sleeve is matched with the bearing and is positioned by the hole circlip. By means of the motion switching of the rotary sleeve and the guide rod assemblies, the conventional LVDT displacement sensor can measure the unidirectional displacement of an object in multidirectional motion, and the displacement sensor is applicable to low-temperature, high-temperature, dusty, frosty and dewy environments and other harsh environments, has the advantages of simple structure, high stability and low cost, and is easy to popularize.
Description
Technical field
The present invention relates to a kind of displacement sensing, specifically relate to a kind of displacement transducer that steel band is carried running deviation value that detects.
Background technology
It is the important component part of modern continuous production technology that steel band is carried, be widely used in fields such as chemical industry, plastics industry, oil refining, coal liquefaction, rock gas, food cooling curing, be heating and curing, granulation, make bar, the knot sheet is carried production line.In the steel band course of conveying, the convey materials temperature is high, the normal employing water spray cooling of steel band bottom; Running environment is abominable, exists feeding unstable in the work, the unequal abnormal conditions of cloth; It is inhomogeneous to cause steel band to be heated, and steel band exists random distortion to a certain degree, the frequent sideslip of emerged in operation steel band; And randomness is bigger, often cause the unplanned shutdown of device systems, has had a strong impact on safe, stable, long period, the oepration at full load of device.
To steel band sideslip problem in the steel band induction system; Because the reason of the scope of application of sensor and price, steel band carry deviation-rectifying system to adopt switching value control correction or pneumatic positioner valve control cylinder pressure equilibrium correction usually, the inefficacy of when strip deformation is big, usually rectifying a deviation; Spacing frequent warning; The steel band well damage causes its serviceable life well below designed life, thereby has increased production and maintenance cost.
Through consulting Related product sample, handbook and document, be applied to steel band at present and carry the deficiency of the displacement transducer existence of running deviation value detection mainly to be:
When (1) ultrasonic sensor is used for the detection of steel band sideslip displacement, can only export the switching value signal usually; And can not be applied to frosting, dewfall, explosion-proof, steam occasion, limited use when steel band is carried to outside work and winter, environment temperature was lower than below-10 ℃.
(2) intelligent laser type photoelectric sensor can be realized non-cpntact measurement, the output of analog quantity displacement, but costs an arm and a leg; The switching mode photoelectric sensor can not be used for the output of displacement analog quantity; The photoelectric sensor operating ambient temperature range is generally 0～55 ℃, can not be applied to frosting, dewfall occasion.
(3) pneumatic positioner valve is applied to the Pneumatic pressure closed-loop control usually, can realize analog quantity displacement output, but carries the sideslip range of control less to steel band, and steel band local deformation can not be suitable for when big.
To the steel band cooling curing, be heating and curing, granulation, make bar, knot sheet and carry rugged surroundings such as the low temperature of production line, high temperature, dust, it is a kind of simple in structure to press for design, good stability, displacement transducer with low cost.
The LVDT displacement transducer is widely used in to be measured ohject displacement; Have simple in structure, stable performance, sturdy and durable, characteristics such as environmental suitability is strong; But can only detect the object of one-way movement usually, and steel band has multi-direction motion in course of conveying, carry the sideslip displacement to detect so conventional LVDT displacement transducer can not directly apply to steel band; On the basis of the LVDT of routine displacement transducer, improve design; Make the monodisplacement amount in the multidirectional moving object of its energy measurement, will be more widely used, have bigger economic benefit.
Summary of the invention
Carry running deviation value to detect the deficiency that exists with displacement transducer to domestic and international conventional LVDT sensor and steel band; The object of the present invention is to provide a kind of displacement transducer that steel band is carried running deviation value that detects, can be applied in the multidirectional motions of rugged surroundings occasion inspected object such as low temperature, high temperature, dust the monodisplacement amount or detect the displacement transducer that steel band is carried running deviation value.
In order to achieve the above object, the technical scheme of the present invention's employing is:
The present invention includes axle, U type frame, pivoted housing, last dust cap, bearing, circlip for hole, following dust cap, nut, elastic washer, two guide pole assemblies, installing plate, dust cover, rubber boot and LVDT displacement transducers; Wherein the LVDT displacement transducer is positioned at two guide pole inter-modules, is fixed on the installing plate with pipe clamp respectively; Guide pole one end of the bottom surface of U type frame and two guide pole assemblies is fixed through nut; Axle is vertically mounted in the U type hole of U type frame both sides fixing, and Bearing Installation is in axle, and the bearing upper end is fixed through circlip for shaft, and pivoted housing is installed in bearing outer ring and through the circlip for hole location; Last dust cap and following dust cap are installed in the upper surface and the lower surface of pivoted housing respectively, fix with the pivoted housing interference fit, and form clearance fit with axle; Rubber boot is installed on guide pole one end of guide pole assembly, and rubber boot and U type frame bottom surface are adjacent to, and dust cover is fixed on the installing plate; LVDT displacement transducer measuring staff elongated end and U type frame bottom surface are adjacent to.
Described guide pole assembly comprises guide pole, dust ring, guidance tape, sleeve, spring and screw; Have two measure-alike grooves in its middle sleeve one stomidium, groove is embedded in guidance tape, and the outside that is positioned at the sleeve ends groove has dustproof ring recess and embeds dust ring, opens threaded hole in another stomidium of sleeve; An end of not driving the guide pole of screw thread embeds sleeve inner along the socket end that has dustproof ring recess, and spring one end inserts the guiding rod end that has endoporus, and the other end is fixed on the screw, and screw screws in the socket end that has threaded hole.
The beneficial effect that the present invention has is:
The displacement sensor component that the present invention proposes through the movement conversion between pivoted housing and the guide pole assembly, can be realized monodisplacement amount in the multidirectional motion of Measuring Object.The present invention is applicable to that rugged surroundings occasions such as low temperature, high temperature, dust measure multidirectional moving object monodisplacement or detect steel band and carry running deviation value, simple in structure, good stability, with low cost, be easy to promote.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the cutaway view Amplified image of guide pole assembly among Fig. 1.
Among Fig. 1: 1, axle; 2, U type support; 3, go up dust cap; 4, pivoted housing; 5, circlip for shaft; 6, bearing; 7, circlip for hole; 8, following dust cap; 9, plain washer; 10, spring washer; 11, nut; 12, guide pole assembly; 13, installing plate; 14, screw; 15, dust cover; 16, rubber boot; 17, first pipe clamp; 18, second pipe clamp; 19, LVDT displacement transducer; 20, guide pole; 21, dust ring; 22, guidance tape; 23, sleeve; 24, spring; 25, screw.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Like Fig. 1, shown in Figure 2, comprise axle 1, U type frame 2, pivoted housing 4, go up dust cap 3, bearing 6, circlip for hole 7, dust cap 8, nut 11, elastic washer 10, two guide pole assemblies 12, installing plate 13, dust cover 15, rubber boot 16, first pipe clamp 17, second pipe clamp 18 and LVDT displacement transducer 19 down; Wherein guide pole 12 is fixed on the installing plate 13 by first pipe clamp 17, and LVDT displacement transducer 19 and is fixed on the installing plate 13 through second pipe clamp 18 between two guide pole assemblies 12; Guide pole one end of the bottom surface of U type frame 2 and two guide pole assemblies 12 that are parallel to each other is fixed through nut; Axle 1 is vertically mounted in the U type hole of U type frame 2 both sides; And it is fixing through plain washer 9, elastic washer 10 and nut 11; Bearing 6 is installed in the axle 1, and bearing 6 upper ends are fixing through circlip for shaft 5, and pivoted housing 4 is installed in bearing 6 outer rings and locatees through circlip for hole 7; Last dust cap 3 and following dust cap 8 are installed in the upper surface and the lower surface of pivoted housing 4 respectively, fix with pivoted housing 4 interference fit, and form clearance fit with axle 1; Rubber boot 16 is installed on guide pole one end of guide pole 12, and rubber boot 16 left sides and U type frame 2 bottom surfaces are adjacent to, and prevents that the transmission medium that overflows in extraneous dust or the steel band course of conveying from getting in the sleeve 23, plays protection guide pole assembly 12 elements; Dust cover 15 is fixed on the installing plate 13 through screw 14.
As shown in Figure 3, described guide pole assembly 12 comprises guide pole 20, dust ring 21, guidance tape 22, sleeve 23, spring 24 and screw 25; Have two measure-alike grooves in its middle sleeve 23 1 stomidiums, groove is embedded in guidance tape 22, and the outside of sleeve 23 termination trench has dustproof ring recess and embeds dust ring 21, has the threaded hole of 25～35mm in sleeve 23 another stomidiums; Guide pole 20 1 ends have the screw thread that is about 15～20mm, and the other end has the degree of depth to be the endoporus of 100～120mm and to embed spring 24, and an end of not driving the guide pole 20 of screw thread embeds sleeve inner along the socket end that has dustproof ring recess; Screw 25 screws in sleeve through sleeve 23 screw thread nose ends, and screw 25 tops and spring 24 1 end in contact are regulated the axial location of guide pole 20 along sleeve 23 through the adjustment screw depth.When guide pole 20 receives when making spring 24 produce deformation under the external force effect; Guide pole 20 moves along screw 25 directions; Guidance tape 22 play reduce to rub, motion guide and bear the effect of guide pole 20 radial forces, and guarantee that guide pole 20 is along sleeve 23 center lines rectilinear motion reposefully.Rotary screw 25 adjustable springs 24 stiff ends are in the axial position of sleeve 23, the pretightning force of control guide pole 20 spring 24 when the initialization position, thereby the contact stress between control pivoted housing 4 and tested steel band.Have the aperture that diameter is about 5mm on screw 25 axis, play exhaust in the course of work and add lubricant.
The coordinate system of setting up as shown in Figure 1, the transmission direction of tested steel band is parallel to the Y axle, and the sideslip direction of steel band is parallel to the X axle; Overlap under the effect of being fixedly connected between the guide pole assembly 12 that is parallel to each other at U type frame 2 and two, U type frame 2 can only move along being parallel to X-direction with respect to the motion of installing plate 13, promptly moves along the axis direction that is parallel to guide pole assembly 12; Under the 12 inner spring power effects of guide pole assembly, make pivoted housing 4 and tested steel band be adjacent to and realize along being parallel to the interlock that X-direction is the axis direction of guide pole assembly 12; In the normal transmission process of steel band, steel band is zero along the X-direction displacement component, and under the moment of friction effect between pivoted housing 4 and the steel band, pivoted housing 4 is along rotating around axle 1, and U type frame 2 relative installing plates 13 are static, and this moment, LVDT displacement transducer 19 output signals were constant; When in the tested Steel Belt Transmission process during along X axle positive dirction sideslip; Under the moment of friction effect between pivoted housing 4 and the steel band; Pivoted housing 4 rotates around axle 1, and under the elastic force effect of guide pole assembly 12 inner springs 24, pivoted housing 4 is followed the motion of steel band X-direction real-time dynamicly in addition; Pivoted housing 4 promotes U type frame 2 along the displacement of X axle positive dirction; Spring 24 is compressed under external force, and the measuring staff of LVDT displacement transducer 19 is followed U type frame 2 along the displacement of X axle positive dirction, and LVDT displacement transducer 19 output signals reduce in its measuring staff displacement ratio; In like manner; When in the tested Steel Belt Transmission process during along X axle negative direction sideslip; Pivoted housing 4 rotates around axle 1, and follows steel band real-time dynamicly and move along X axle negative direction, under the elastic force effect of guide pole assembly 12 inner springs 24; Promote U type frame 2 towards the X-direction displacement; LVDT displacement transducer measuring staff is put within it and is followed U type frame 2 under the spring force effect to the displacement of X axle negative direction, and LVDT displacement transducer 19 output signals increase in its measuring staff displacement ratio, realizes that finally LVDT displacement transducer 19 output signals and testee are in proportion along guide pole assembly 12 axis direction displacement components.
In sum; In the displacement sensor component course of work of the present invention; Its guide pole assembly can be guaranteed the motion stably on sense of displacement to be detected of U type frame, and under the acting force of the spring in the guide pole assembly, assurance pivoted housing Real-time and Dynamic is followed the sideslip motion of tested steel band; Realization converts tested steel band sideslip displacement the displacement of U type frame along guide pole assembly axis direction to; Back springing type LVDT sensor measuring staff is followed the motion of U type frame automatically, realizes that finally the displacement electric signal of LVDT sensor output is tested steel band conveying sideslip displacement signal.
Claims (2)
1. one kind is detected the displacement transducer that steel band is carried running deviation value, it is characterized in that: comprise axle (1), U type frame (2), pivoted housing (4), last dust cap (3), bearing (6), circlip for hole (7), following dust cap (8), nut (11), elastic washer (10), two guide pole assemblies (12), installing plate (13), dust cover (15), rubber boot (16) and LVDT displacement transducer (19); Wherein LVDT displacement transducer (19) is positioned between two guide pole assemblies (12), is fixed on the installing plate (13) with pipe clamp respectively; Guide pole one end of the bottom surface of U type frame (2) and two guide pole assemblies (12) is fixed through nut; Axle (1) is vertically mounted in the U type hole of U type frame (2) both sides fixing, and bearing (6) is installed in the axle (1), and bearing (6) upper end is fixing through circlip for shaft (5), and pivoted housing (4) is installed in bearing (6) outer ring and through circlip for hole (7) location; Last dust cap (3) and following dust cap (8) are installed in the upper surface and the lower surface of pivoted housing (4) respectively, fix with pivoted housing (4) interference fit, and form clearance fit with axle (1); Rubber boot (16) is installed on guide pole one end of guide pole assembly (12), and rubber boot (16) is adjacent to U type frame (2) bottom surface, and dust cover (15) is fixed on the installing plate (13); LVDT displacement transducer measuring staff elongated end and U type frame (2) bottom surface are adjacent to.
2. a kind of displacement transducer that steel band is carried running deviation value that detects according to claim 1, it is characterized in that: described guide pole assembly (12) comprises guide pole (20), dust ring (21), guidance tape (22), sleeve (23), spring (24) and screw (25); Have two measure-alike grooves in its middle sleeve (23) one stomidiums, groove is embedded in guidance tape (22), and the outside that is positioned at sleeve (23) termination trench has dustproof ring recess and embeds dust ring (21), opens threaded hole in another stomidium of sleeve (23); An end of not driving the guide pole (20) of screw thread embeds sleeve inner along the socket end that has dustproof ring recess, and spring (24) one ends insert guide pole (20) end that has endoporus, and the other end is fixed on the screw (25), and screw (25) screws in sleeve (23) end that has threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110141013 CN102322790B (en) | 2011-05-26 | 2011-05-26 | Displacement sensor for detecting steel strip-conveying deviation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110141013 CN102322790B (en) | 2011-05-26 | 2011-05-26 | Displacement sensor for detecting steel strip-conveying deviation |
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| Publication Number | Publication Date |
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| CN102322790A true CN102322790A (en) | 2012-01-18 |
| CN102322790B CN102322790B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110141013 Expired - Fee Related CN102322790B (en) | 2011-05-26 | 2011-05-26 | Displacement sensor for detecting steel strip-conveying deviation |
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| CN (1) | CN102322790B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140592A (en) * | 2019-12-25 | 2020-05-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Mechanical anti-twisting device of dual-redundancy linear displacement sensor |
| CN112325830A (en) * | 2019-07-31 | 2021-02-05 | 中冶宝钢技术服务有限公司 | Round roller detection device for activated carbon adsorption tower |
| CN113788294A (en) * | 2021-09-17 | 2021-12-14 | 中煤科工集团上海有限公司 | Retractable belt off tracking measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0165506A1 (en) * | 1984-06-16 | 1985-12-27 | Dr. Arnold Schäfer GmbH | Device for controlling the movement of a conveyor belt |
| JPH11301826A (en) * | 1998-04-17 | 1999-11-02 | Bando Chem Ind Ltd | Belt driving device |
| CN2369975Y (en) * | 1999-03-16 | 2000-03-22 | 长春市意达光机电设备技术研究所 | Automatic adjustor for deviation of rubber belt machine |
| CN201680689U (en) * | 2010-04-27 | 2010-12-22 | 凯喜特机械有限公司 | Conveyer belt rectification device for crawler type vacuum low temperature drying machine |
| CN202083342U (en) * | 2011-05-26 | 2011-12-21 | 杭州富如德科技有限公司 | Displacement sensor for detecting conveying deviation of steel strips |
-
2011
- 2011-05-26 CN CN 201110141013 patent/CN102322790B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0165506A1 (en) * | 1984-06-16 | 1985-12-27 | Dr. Arnold Schäfer GmbH | Device for controlling the movement of a conveyor belt |
| JPH11301826A (en) * | 1998-04-17 | 1999-11-02 | Bando Chem Ind Ltd | Belt driving device |
| CN2369975Y (en) * | 1999-03-16 | 2000-03-22 | 长春市意达光机电设备技术研究所 | Automatic adjustor for deviation of rubber belt machine |
| CN201680689U (en) * | 2010-04-27 | 2010-12-22 | 凯喜特机械有限公司 | Conveyer belt rectification device for crawler type vacuum low temperature drying machine |
| CN202083342U (en) * | 2011-05-26 | 2011-12-21 | 杭州富如德科技有限公司 | Displacement sensor for detecting conveying deviation of steel strips |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325830A (en) * | 2019-07-31 | 2021-02-05 | 中冶宝钢技术服务有限公司 | Round roller detection device for activated carbon adsorption tower |
| CN112325830B (en) * | 2019-07-31 | 2022-07-12 | 中冶宝钢技术服务有限公司 | Round roller detection device for activated carbon adsorption tower |
| CN111140592A (en) * | 2019-12-25 | 2020-05-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Mechanical anti-twisting device of dual-redundancy linear displacement sensor |
| CN111140592B (en) * | 2019-12-25 | 2022-07-05 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Mechanical anti-twisting device of dual-redundancy linear displacement sensor |
| CN113788294A (en) * | 2021-09-17 | 2021-12-14 | 中煤科工集团上海有限公司 | Retractable belt off tracking measuring device |
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| CN102322790B (en) | 2013-02-13 |
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