CN201724768U - Rope tension detection mechanism with zero adjustment function - Google Patents
Rope tension detection mechanism with zero adjustment function Download PDFInfo
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- CN201724768U CN201724768U CN2010201700018U CN201020170001U CN201724768U CN 201724768 U CN201724768 U CN 201724768U CN 2010201700018 U CN2010201700018 U CN 2010201700018U CN 201020170001 U CN201020170001 U CN 201020170001U CN 201724768 U CN201724768 U CN 201724768U
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- pressure
- rope
- fixed
- pressure transducer
- tension
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Abstract
The utility model discloses a rope tension detection mechanism with a zero adjustment function. Tension on ropes is converted into pressure signals on pressure sensors through guide wheels. The rope tension detection mechanism comprises guide wheel components, a fixed base, linear bearings, the pressure sensors, rubber blocks and a fixing plate. The pressure sensors are fixed on the fixing plate through the rubber blocks at intervals, and the fixing plate is screwed and mounted on the fixed base via screws. The guide wheel components are abutted to the tops of the pressure sensors through the linear bearings, and initial pressure of the pressure sensors is adjusted through pressing or releasing the rubber blocks. The ropes needing to measure tension are wound on outer rings of the guide wheel components, when the ropes are tensioned, the guide wheel component are pushed upwards so as to apply pressure to the pressure sensors, the pressure sensors converts measured pressure into electric signals and inputs the electric signals into a computer system, and the computer automatically converts the measured signals into tension values of the rope and detects whether the tension values are in a given range.
Description
Technical field
The utility model relates to a kind of rope tension-detecting mechanism, more particularly says, is meant a kind of can the adjustment rope initial tension size, can be used in the cable traction mechanism, detects the tension force of rope in dynamic and static process easily.
Background technology
Because rope can only apply unidirectional pulling force, so must there be redundant power could realize the power closure of motion arm.For realizing the motion of n degree of freedom, n+1 root rope just must be arranged as driving element.The mechanism that rope drives is on motion process, and the tension force that drives rope promptly can not surpass its maximum tension that can bear, and also must therefore must monitor or calculate the tension variation situation of each root rope in real time greater than the required minimum tension of rope tension.For under the situation of the force structure that does not change rope, online in real time detects the strain problem of rope in dynamic, static process automatically, and present patent application proposes a kind of rope tension-detecting mechanism with zero-bit regulatory function.
Summary of the invention
The utility model is a kind of rope tension-detecting mechanism with zero-bit regulatory function, by angle sheave the tension force on the rope is converted to pressure signal on the pressure transducer.It includes guide wheel assemblies, fixed pedestal, linear bearing, pressure transducer, block rubber and fixed head.Wherein, on fixed head, fixed head is installed on the fixed pedestal by screw-driving pressure transducer by the block rubber fixed interval.Guide wheel assemblies withstands on the top of pressure transducer by linear bearing, by compressing or unclamping the size that block rubber is adjusted the pressure transducer original pressure.The rope of required measurement tension force size is wrapped on the outer ring of guide wheel assemblies, when rope is tightened up, guide wheel assemblies is up pushed away, thus pressure transducer is exerted pressure, pressure transducer is converted to electric signal with measured pressure, the input computer system, computing machine is the tension value of rope with measured conversion of signals automatically, detects it whether in given scope.
The utility model is a kind of rope tension-detecting mechanism with zero-bit regulatory function, and it includes guide wheel assemblies 6, fixed pedestal 4, linear bearing 5, pressure transducer 3, block rubber 2 and fixed head 1; Wherein, fixed head 1 is tightened on the fixed pedestal 4 by A gib screw 101, pressure transducer 3 is tightened on the fixed head 1 by C gib screw 103, block rubber 2 is clipped in the middle of fixed head 1 and the pressure transducer 3, B gib screw 102 is tightened on the fixed head 1, and the center pit 21 by block rubber 2 withstands on the pressure transducer 3;
Angle sheave rotation axis 607 passes A through hole 611, mobile bearing 606, the sleeve 603 of angle sheave fixed station 601 in turn, tighten with B nut 602 B through hole 612 backs of angle sheave fixed station 601;
The advantage that the utlity model has the rope tension-detecting mechanism of zero-bit regulatory function is:
(1) by adjusting the gap between pressure transducer and the pressure axis upper surface, make tension-detecting mechanism have the zero-bit regulatory function.
(2) thread segment of pressure axis is fixedlyed connected with 601, and rope is wrapped on the angle sheave, when rope tension, tension force is converted to pressure on the pressure transducer, can detect the tension force size under the dynamic and static state of rope in real time.
(3) between fixed head and pressure transducer, block rubber is set, pushes block rubber, to adjust the gap between pressure transducer and the pressure axis upper surface by regulating 103.
(4) rope structure be need not to do change, rope only need be wrapped on the angle sheave can detect its tension force.
(5) testing agency's volume is little, installation, convenient disassembly.
Description of drawings
Fig. 1 is the structural drawing that the utlity model has the rope tension-detecting mechanism of zero-bit regulatory function.
Fig. 2 is the exploded view that the utlity model has the rope tension-detecting mechanism of zero-bit regulatory function.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to shown in Figure 1, the utility model is a kind of rope tension-detecting mechanism with zero-bit regulatory function, and it includes guide wheel assemblies 6, fixed pedestal 4, linear bearing 5, pressure transducer 3, block rubber 2 and fixed head 1.Wherein, fixed head 1 is tightened on the fixed pedestal 4 by A gib screw 101, pressure transducer 3 is tightened on the fixed head 1 by C gib screw 103, block rubber 2 is clipped in the middle of fixed head 1 and the pressure transducer 3, B gib screw 102 is tightened on the fixed head 1, and the center pit 21 by block rubber 2 withstands on the pressure transducer 3;
Angle sheave rotation axis 607 passes A through hole 611, mobile bearing 606, the sleeve 603 of angle sheave fixed station 601 in turn, tighten with B nut 602 B through hole 612 backs of angle sheave fixed station 601;
Fixed pedestal 4 is designed to the H configuration, and linear bearing 5 is installed on the horizontal support plate 41
Angle sheave fixed station 601 is designed to the U configuration, and a support arm of angle sheave fixed station 601 is provided with A through hole 611, and another support arm is provided with B through hole 612, and the top of angle sheave fixed station 601 is used to connect pressure axis 301.In the utility model, A through hole 611 passes for angle sheave rotation axis 607 with B through hole 612, and realizes the installation of angle sheave rotation axis 607 and angle sheave fixed station 601.
(1) the initial tension zero-bit of adjusting pressure power transmission sensor is regulated
Referring to Fig. 1, shown in Figure 2, at first unclamp B gib screw 102, make pressure transducer 3 extruding block rubbers 2 by adjusting C gib screw 103, change the gap (0.1mm～10mm) of pressure axis 301 and pressure transducer 3 dynamometry ends thus, thereby change the original pressure of 301 pairs of pressure transducers 3 of pressure axis, the size of 3 detected values of observed pressure sensor from computing machine, on duty is that 0 o'clock outgoing mechanism has returned zero.Tighten B gib screw 102, fixation pressure sensor 3 this moment again.Be to adopt VC software (the Microsoft Visua1C++2005 of version number) to write strong information acquisition program in the PC, the purpose of this software is the force information that is used for showing in real time pressure transducer output.Pressure transducer 3 can directly insert in the PC by serial line interface, also can be connected between pressure transducer 3 and the PC by a data capture card, and data collecting card is installed in the host slot of PC.
(2) tension force of detection rope
Referring to Fig. 1, shown in Figure 2, rope 7 is wrapped on the U-lag 605A of angle sheave 605, when rope 7 is tensioned, angle sheave 605 is produced pressure, by pressure axis 301 compaction pressure sensors 3, pressure transducer 3 is converted to electric signal with measured pressure, in the input PC, and demonstrates force value in the display screen of PC.Between pressure axis 301 and the linear bearing 5 is rolling friction, therefore the friction force of its generation is ignored, then pressure transducer 3 measured values are the pressure of 7 pairs of angle sheaves 605 of rope, and when rope 7 and force measuring machine constituted an angle of 90 degrees and arrange, this moment, measured pressure was the tension force of rope 7 itself.When rope 7 relatively slided owing to traction produces, angle sheave 605 rotated around angle sheave rotation axis 607 by rolling bearing 606, and the sliding friction between rope and the angle sheave is converted to the rolling friction of ignoring, thereby accurately measured the tension value of rope when dynamic.
Motor output shaft passes to motion platform by rope with pulling force in motion process, thereby the actuation movement platform rotates; What of motor power output can be exported to amplifier with the rope tension size by the pressure transducer in the tension-detecting mechanism of the present utility model, and then be shown in PC.This is a certain application form of the tension-detecting mechanism of the utility model design, and this application form can not be as limiting usable range of the present utility model.
Claims (2)
1. one kind has the rope tension-detecting mechanism that zero-bit is regulated, and it is characterized in that: include guide wheel assemblies (6), fixed pedestal (4), linear bearing (5), pressure transducer (3), block rubber (2) and fixed head (1); Wherein, fixed head (1) is tightened on the fixed pedestal (4) by A gib screw (101), pressure transducer (3) is tightened on the fixed head (1) by C gib screw (103), block rubber (2) is clipped in the middle of fixed head (1) and the pressure transducer (3), B gib screw (102) is tightened on the fixed head (1), and the center pit (21) by block rubber (2) withstands on the pressure transducer (3);
Linear bearing (5) is fixed on the horizontal support plate (41) of fixed pedestal (4) by D gib screw (104), pressure axis (301) can slide in the middle of linear bearing (5), one end of pressure axis (301) withstands on the dynamometry end of pressure transducer (3), and the other end of pressure axis (301) is fixed on the angle sheave fixed station (601) by A nut (302);
Angle sheave rotation axis (607) passes A through hole (611), mobile bearing (606), the sleeve (603) of angle sheave fixed station (601) in turn, tighten with B nut (602) B through hole (612) back of angle sheave fixed station (601);
Rolling bearing (606) is installed in the angle sheave (605), and withstands the inner ring of rolling bearing (606) by sleeve (603), and collar (604) is stuck on the angle sheave (605), pushes down the outer ring of rolling bearing (606) simultaneously; The rope of required measurement tension force (7) is wrapped in the U-lag (605A) of angle sheave (605).
2. the rope tension-detecting mechanism with zero-bit adjusting according to claim 1, it is characterized in that: guide wheel assemblies (6) withstands on the top of pressure transducer (3) by linear bearing (5), by compressing or unclamping the size that block rubber (2) is adjusted the pressure transducer original pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700018U CN201724768U (en) | 2010-04-26 | 2010-04-26 | Rope tension detection mechanism with zero adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700018U CN201724768U (en) | 2010-04-26 | 2010-04-26 | Rope tension detection mechanism with zero adjustment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201724768U true CN201724768U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201700018U Expired - Fee Related CN201724768U (en) | 2010-04-26 | 2010-04-26 | Rope tension detection mechanism with zero adjustment function |
Country Status (1)
| Country | Link |
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| CN (1) | CN201724768U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813539A (en) * | 2010-04-26 | 2010-08-25 | 北京航空航天大学 | Rope tension-detecting mechanism with zero adjustment |
| CN102627234A (en) * | 2012-03-26 | 2012-08-08 | 哈尔滨工程大学 | Flexible cable traction device with force-measuring function |
| CN103845184A (en) * | 2014-01-26 | 2014-06-11 | 清华大学 | Rope-driven exoskeleton type upper-limb rehabilitation robot system |
| CN104296895A (en) * | 2014-11-04 | 2015-01-21 | 同方威视技术股份有限公司 | Force transmission device |
| CN104296895B (en) * | 2014-11-04 | 2017-01-04 | 同方威视技术股份有限公司 | Force transfering device |
-
2010
- 2010-04-26 CN CN2010201700018U patent/CN201724768U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813539A (en) * | 2010-04-26 | 2010-08-25 | 北京航空航天大学 | Rope tension-detecting mechanism with zero adjustment |
| CN102627234A (en) * | 2012-03-26 | 2012-08-08 | 哈尔滨工程大学 | Flexible cable traction device with force-measuring function |
| CN103845184A (en) * | 2014-01-26 | 2014-06-11 | 清华大学 | Rope-driven exoskeleton type upper-limb rehabilitation robot system |
| CN104296895A (en) * | 2014-11-04 | 2015-01-21 | 同方威视技术股份有限公司 | Force transmission device |
| CN104296895B (en) * | 2014-11-04 | 2017-01-04 | 同方威视技术股份有限公司 | Force transfering device |
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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: 20110126 Termination date: 20110426 |