CN201365099Y - Flexible piece tension automatic compensator - Google Patents
Flexible piece tension automatic compensator Download PDFInfo
- Publication number
- CN201365099Y CN201365099Y CNU200820237713XU CN200820237713U CN201365099Y CN 201365099 Y CN201365099 Y CN 201365099Y CN U200820237713X U CNU200820237713X U CN U200820237713XU CN 200820237713 U CN200820237713 U CN 200820237713U CN 201365099 Y CN201365099 Y CN 201365099Y
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- CN
- China
- Prior art keywords
- nut
- flexible piece
- infrared switch
- screw mandrel
- soft part
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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
The utility model relates to a flexible piece tension automatic compensator, which comprises a motor, a reducer, an axial positioning lead screw, a nut, a fixed bushing and an infrared switch body, wherein the motor is provided with a controller, and the lead screw and a central threaded hole of the nut form a spiral pair, and the nut is provided with a flexible piece connection component; the nut is arranged inside the fixed bushing, and the nut is matched with the fixed bushing through a fluctuated track, and the nut slides along the fixed track. The flexible piece tension automatic compensator changes the passive adapting compensation working way of the traditional potential energy element compensator and can instantly and automatically control the variation of the load according to the application requirements.
Description
Technical field
The utility model relates to a kind of flexible piece automatic tension compensator, and the flexible wire of the cable that is specifically related to large span is set up, drag-line and so on keeps the tension compensator of tensioning state.
Background technology
Flexible piece mainly is meant the wire rods such as rope that cable or various material are made.They are often used in the various occasions as power transmission line or drag-line etc., and the main distinction of they and rigid member is to transmit pulling force, can not transmit thrust.Flexible pieces such as cable for open-air large span is set up are in tensioning state for guaranteeing flexible piece, need connect pretension potential energy element in the end of span of flexible piece, with prevent because of the effect of flexible piece self gravitation crooked lax.At present, it is the line stretcher tool of the various types of single potential energy element that this potential energy element mostly is with spring, provides required pretension of drag-line or permanent tension force by the energy that is stored in advance in the spring.Yet this with spring be single potential energy element the line stretcher tool often as time passes, its decreased performance, particularly open-air the evil under the environmental condition of power, potential energy may be along with amblent air temperature, variations in temperature and is shifted towards periphery, dissipates, the performance of potential energy element and parameter can change (as surrender, creep, slippage); Secondly, the load of flexible piece also can change a lot under the influence of natural environment, and for example the ice and snow in winter etc. can cause the increase of wire rod load, if pretension or permanent tension force can not in time be made corresponding adjustment, this will influence result of use or influence work.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of automatic tensile-force compensator of soft part is provided, and makes flexible piece be in tensioning state all the time, and the situation of tension force decay can not take place.
The utility model automatic tensile-force compensator of soft part contains motor, decelerator, axial location screw mandrel, nut, fixed sleeving, infrared switch body, and motor is provided with controller; The screwed hole of centre of said screw mandrel and nut is formed screw pair, and nut is provided with the flexible piece connecting elements; Nut is positioned at fixed sleeving, and the track that coincide with concave, convex mutually between nut and the fixed sleeving matches, and nut slides along the orbit determination road.
Said nut can be a U type nut, and the internal thread hole that matches with said screw mandrel is contained on the top of this U type nut.
Be provided with the supporting bracket that prevents that screw mandrel from radially scratching, this supporting bracket radially is fixed in the said sleeve pipe, and the center of supporting bracket is provided with through hole, and an end of screw mandrel links to each other with motor-driven mechanism, and the other end passes from the through hole of supporting bracket.
Described infrared switch body be connected the place ahead of sleeve pipe by support and be positioned at flexible piece under.
Described infrared switch body is provided with two corresponding sidewalls, and its sidewall is provided with two infrared switch devices that stagger up and down, and the drive signal output of described controller links to each other with the power control terminal of drive unit; The switching value signal of described infrared switch device links to each other with the signal input part of controller to form and detects the loop; During installation, described flexible piece is up and down between the infrared switch device.
The flexible piece hanging mechanisms that are arranged on the U type nut are the insulating bars that are fixed between U type nut two fork arms.
This tension compensator also is provided with the strain measuring and controlling protective device of being made up of spring and pressure sensor, and said spring housing is contained on the screw mandrel between nut and the pressure sensor.The signal output part of pressure sensor links to each other with the signal input part of controller.
The utility model adopts the infrared switch body that the deformation of flexible piece is detected, when flexible piece hangs flexibility downwards when acquiring a certain degree, the downward camber line of flexible piece enters infrared switch and touches in the zone, its result is in time fed back to controller and is controlled motor steering, makes the rotation of driven by motor screw mandrel; Because screw axis is to motionless, so during its rotation, nut then moves axially, thereby drives flexible piece, makes its tensioning or loosens, and realizes the automatic compensation to the rate of tension of flexible piece.
The utility model adopts pressure sensor is monitored the strain of flexible piece as guard member, has only when special circumstances such as motor or infrared switch device be out of control just can start, and its dependent variable according to detection springs is controlled turning to of motor.
This compensator guarantee that drag-line (flexible piece) in use is in the more accurate tension value zone all the time and the deformation range that allows in.When being provided with pressure sensor and infrared switch device simultaneously, can detect the strain and the deformation of loading respectively, realize dual fail-safe, the operate as normal of protection flexible piece.The utility model changes the working method of the passive adaptive compensation of traditional potential energy element compensator, and it can control the variation of load in good time, on one's own initiative according to instructions for use.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of this flexible piece automatic tension compensator.
Fig. 2 is the three-dimensional structure diagram of U type nut.
Fig. 3 is the A-A profile of Fig. 1.
Fig. 4 is the three-dimensional structure diagram of sleeve and the infrared switch body that is attached thereto.
Among the figure: 1-motor, 2-decelerator, 3-pressure sensor, the 4-spring, 5-U type nut, 5-1-U type nut screw, the 5-2-protruding rail, 5-U type nut, 6-sleeve pipe, the 7-screw mandrel, the 8-supporting bracket, 9-articulates the insulating bar of flexible piece, the 10-flexible piece, 11-infrared switch body, 11-1-infrared switch device, the 11-2-sidewall, 12-support, 13-controller.
Embodiment
Example structure and operation principle below in conjunction with this flexible piece of description of drawings automatic tension compensator.
As Fig. 1, in the automatic tensile-force compensator of soft part, motor 1 is provided with controller 13, screw mandrel 7 links to each other with motor 1, decelerator 2, rotatable, screw mandrel 7 is connected with screw thread with the screw 5-1 on U type nut 5 tops, is socketed with pressure sensor 3 and spring 4 on the screw mandrel 3 between U type nut 5 and the decelerator 2; The stereochemical structure (see figure 2) of U type nut 5, its outside is provided with protruding rail 5-2, is fixed with insulating bar 9 between two fork arms of U type nut 5, is used to articulate cable 10 (being flexible piece).U type nut 5 is positioned at sleeve pipe 6, its protruding rail 5-2 (see figure 3) that matches with the recessed rail of sleeve pipe 6 inboards, and the two forms concavo-convex track, and U type nut 5 is slided along track.Be provided with supporting bracket 8 in the sleeve pipe 6, pass from the centre bore of supporting bracket 8 in the screw mandrel 7,8 pairs of screw mandrels 7 of supporting bracket play the radial location effect.Infrared switch body 11 is connected with sleeve pipe 6 by support 12, infrared switch body 11 is positioned at the dead ahead of sleeve pipe 6 and the below (see figure 1) of cable 10, infrared switch body 11 is provided with two side 11-2, its sidewall 11-2 is provided with two infrared switch device 11-1 that stagger up and down, during installation, described cable 10 (being flexible piece) is in (see figure 1) between the two infrared switch device 11-1 up and down.
The switching value signal output part of infrared switch device 11-1 of the present utility model links to each other with the signal input part of controller 13 with the signal output part of pressure sensor 3, forms to detect the loop; Strain and deformation to load detects respectively, and its result is in time fed back to controller 13.
Operation principle of the present utility model is as follows:
Preset the interval value of various tension force and the on-off function of infrared detection derailing switch 11-1 by controller 13, according to interval value the trigger position of upper and lower infrared switch device 11-1 and the upper and lower trigger value of pressure sensor 3 are set then; When triggering infrared switch device 11-1 when cable 10 downward camber lines increases, controller 13 clockwise rotates according to feedback information drive motors 1, strains cable 10 by the distance that reduces between decelerator 2 and the nut 5; Otherwise, when infrared switch device 11-1 is gone up in triggering, motor 1 backward rotation; Pressure sensor 3 is as guard member, and its dependent variable according to detection springs 4 is controlled motor 1, and the working method of working method and infrared switch device 11-1 is basic identical.
The utility model is simple in structure, reliable operation, practicality, and the variation of the load of active detecting control in real time within the specific limits according to circumstances remains it in the normal scope of using.
Therefore the utility model belongs to the instantaneous low power consuming product of small-power, so can adopt for example external power supply owing to belong to fine setting compensation work character; Based on storage battery, it is the multiple supply power modes such as version of assisting that solar energy, wind energy are replenished.
Above disclosed only is preferred embodiment of the present utility model, can not limit interest field of the present utility model with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (7)
1. automatic tensile-force compensator of soft part is characterized in that containing motor, decelerator, axial location screw mandrel, nut, fixed sleeving and infrared switch body; Described motor is provided with controller, and the screwed hole of centre of said screw mandrel and nut is formed screw pair, and nut is provided with the flexible piece connecting elements; Nut is positioned at fixed sleeving, and the track that coincide with concave, convex mutually between nut and the fixed sleeving matches, and nut slides along the orbit determination road.
2. automatic tensile-force compensator of soft part according to claim 1 is characterized in that nut is a U type nut, and the internal thread hole that matches with said screw mandrel is contained on the top of this U type nut.
3. automatic tensile-force compensator of soft part according to claim 1, it is characterized in that being provided with the supporting bracket that prevents that screw mandrel from radially scratching, this supporting bracket radially is fixed in the fixed sleeving, the center of supporting bracket is provided with through hole, one end of screw mandrel links to each other with motor-driven mechanism, and the other end passes from the through hole of supporting bracket.
4. automatic tensile-force compensator of soft part according to claim 1, it is characterized in that described infrared switch body be connected the place ahead of sleeve pipe by support and be positioned at flexible piece under.
5. automatic tensile-force compensator of soft part according to claim 1, it is characterized in that described infrared switch body is provided with two corresponding sidewalls, its sidewall is provided with two infrared switch devices that stagger up and down, and the drive signal output of described controller links to each other with the power control terminal of drive unit; The switching value signal of described infrared switch device links to each other with the signal input part of controller to form and detects the loop; During installation, described flexible piece is up and down between the infrared switch device.
6. automatic tensile-force compensator of soft part according to claim 2 is characterized in that said flexible piece connecting elements is the insulating bar that is fixed between U type nut two fork arms.
7. automatic tensile-force compensator of soft part according to claim 1; it is characterized in that being set with on the screw mandrel between nut and the pressure sensor strain measuring and controlling protective device of being made up of spring and pressure sensor, the signal output part of pressure sensor links to each other with the signal input part of controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820237713XU CN201365099Y (en) | 2008-12-31 | 2008-12-31 | Flexible piece tension automatic compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820237713XU CN201365099Y (en) | 2008-12-31 | 2008-12-31 | Flexible piece tension automatic compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201365099Y true CN201365099Y (en) | 2009-12-16 |
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ID=41475768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820237713XU Expired - Fee Related CN201365099Y (en) | 2008-12-31 | 2008-12-31 | Flexible piece tension automatic compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201365099Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105200577A (en) * | 2014-06-24 | 2015-12-30 | 南通神马线业有限公司 | Device for fully automatically controlling tightness of tangential belt through spring |
| CN109888704A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable sagging prevention device with positioning function |
-
2008
- 2008-12-31 CN CNU200820237713XU patent/CN201365099Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105200577A (en) * | 2014-06-24 | 2015-12-30 | 南通神马线业有限公司 | Device for fully automatically controlling tightness of tangential belt through spring |
| CN109888704A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable sagging prevention device with positioning function |
| CN109888704B (en) * | 2018-12-26 | 2020-07-24 | 金华八达集团有限公司科技信息分公司 | Cable sag prevention device with positioning function |
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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: 20091216 Termination date: 20101231 |