CN103072917B - Steel wire rope elasticity limiting device - Google Patents
Steel wire rope elasticity limiting device Download PDFInfo
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- CN103072917B CN103072917B CN201310060742.9A CN201310060742A CN103072917B CN 103072917 B CN103072917 B CN 103072917B CN 201310060742 A CN201310060742 A CN 201310060742A CN 103072917 B CN103072917 B CN 103072917B
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- rope
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- steel wire
- limit switch
- wire rope
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Abstract
The invention relates to the technical field of piling machinery, in particular to a steel wire rope elasticity limiting device, which comprises a steel wire rope, and is characterized by being provided with a leaf spring, switch contacts, a limiting switch, a limiting switch supporting seat, a pressure plate, rope bases, a fixing bolt and a locking nut, wherein the leaf spring is arranged on one side of the steel wire rope; the pressure plate is arranged on the other side of the steel wire rope corresponding to the center of the leaf spring; the rope bases are arranged at the two ends of one side, which corresponds to the steel wire rope, of the leaf spring; the limiting switch supporting seat is fixed in the center of the other side of the leaf spring; a bracket is arranged in the center of the limiting switch supporting seat; the pressure plate and the leaf spring are fixed on the steel wire rope through the fixing bolt and the locking nut on both sides of the steel wire rope; one end of the limiting switch is fixed connected with the bracket, and the other end of the limiting switch is hinged with the switch contacts; and the positions of the switch contacts correspond to the positions of the rope bases. The steel wire rope elasticity limiting device has the advantages of simple structure, convenience in operating, no fault, convenience in installing and adjusting, and the like.
Description
Technical field
The present invention relates to elevator machinery and piling machinery technical field, specifically a kind of tightness of steel wire rope inhibiting device for elevator machinery and piling machinery.
Background technology
At present, stake machine is when constructing, operating personal is first with the operating switch on Non-follow control shelves operation operator's station, winch frequency converter drives winch machine operation, motor by transmission of power to reductor, reductor drives lifting drum to rotate, the framework of the other end of the steel rope on reel is declined, and then make the reductor be fixed on framework drive drilling tool to decline, when operating personal observes drilling tool arrival appointment pile driving position, drilling tool rotating speed rotor switch on M/C operating console, make it to be transferred to and automatically control shelves, the drilling tool of rig starts to creep into, the motor of drilling tool has drilling tool inverter supply to reach rated speed of rotation, when drilling depth increases, drilling tool resistance increases, drilling tool current of electric increases, upper prescribing a time limit is allowed when drilling tool frequency converter detects that the electric current of motor exceedes, output signal is passed to winch frequency converter, the adjustment of winch frequency converter reduces winch motor speed, reduce to make drilling tool current of electric, when the electric current of drilling tool motor is less than allowable upper limit value, output signal is transferred to winch frequency converter by drilling tool frequency converter, make it to stop adjusting and keeping mode of operation, when drilling tool resistance reduces, drilling tool current of electric reduces, namely electric current is reduced to and allows lower prescribing a time limit, output signal is transferred to winch frequency converter by drilling tool frequency converter, and improve winch motor speed raising drilling tool descending speed, lower prescribing a time limit is allowed when drilling tool current of electric is greater than, namely stop adjusting and keeping mode of operation.In operational process, may occur that electric current is less, drilling tool running speed is slow, the too much situation that steel rope is put, and steel rope has been put many reel row rope confusion and steel rope will be caused to pile up.
At present in crane applications field, overload to prevent crane load the equipment and fatal accident caused, usually on equipment, load lifting limiter is installed, load lifting limiter is made up of sensor and controller two parts, when elevator machinery hoisting heavy, weight is transferred to sensor makes sensor produce micro-change of voltage, after instrument amplifier amplifies, become digital signal through high-resolution A/D converter.Digital signal is directly read by one-chip computer, is converted into gravimetric value after treatment.This value and the specified rated value compared as reached 110% export a pair passive relay contact signal (normally closed), be used for cutting off lifting motor power supply, gravimetric value demonstrates rated weight after can delivering to controller process according to the order of controller in addition, the pre-alarm of lifting weight and alarm sound, during sensor installation, by elastic body near steel rope, then with hand pressing plate is enclosed within clevis bolt and steel rope is pushed down, then with spanner, left and right nut screwing clamping is pushed down steel rope, its diameter is slightly out of shape, last left and right Ge Jia mono-nut is again also tightly locking, too tightly or too pine all can make the output signal of sensor inconsistent, during mount controller, controller can need to be arranged on pocket torch door according to different or are contained in driver's cab, be connected with a four-core shielding wire between controller with sensor, its deficiency is: control signal when it only has arrived weight, do not lose the control signal of weight.And complex structure, need independent supply line, complex circuit, break down and be difficult to maintenance, adjustment difficulty.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide that a kind of structure is simple, easy to operate, trouble free, install, tightness of steel wire rope inhibiting device easy to adjust.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of tightness of steel wire rope inhibiting device, comprise steel rope, it is characterized in that being provided with plate spring, switch contact, limit switch, limit switch bearing, pressing plate, rope seat, bolt of rear end plate and jam nut, steel rope side is provided with plate spring, opposite side counterpiece spring center is provided with pressing plate, plate spring is respectively equipped with rope seat near the two ends of steel rope side, opposite side center is fixed with limit switch bearing, limit switch bearing center is provided with support, bolt of rear end plate respectively through steel rope both sides of pressing plate and plate spring and jam nut fixing on a steel cord, limit switch one end is fixedly connected with support, the other end and switch contact are hinged, switch contact is corresponding with the position of rope seat, when steel rope is stressed, rope stretches gradually by bending and makes it to switch contact Direction distortion by rope seat push-pads spring, at this moment namely plate spring touches switch contact, make limit switch action, when steel rope pine or stressed less time, it is at pressing plate, rope seat becomes case of bending with under the effect of plate spring, switch contact is separated with plate spring, limit switch is failure to actuate.
Seat of restricting described in the present invention is intersected by the baffle plate of base plate and base plate both sides fixedly to form, the curved projection of plate inner surface, forms point cantact, reach the friction reduced steel rope between the base plate being beneficial to steel rope and rope seat.
The present invention owing to adopting said structure, can perception arrived weight time control signal, perception can lose the control signal of weight again, avoid steel rope and to stack and chaotic, have that structure is simple, easy to operate, trouble free, advantage is installed, easy to adjust etc.
accompanying drawing explanation
Fig. 1 is the structural representation of rope strained condition of the present invention.
Fig. 2 is that the present invention does not stress state or the little structural representation of strained condition.
Reference numeral: plate spring 1, switch contact 2, limit switch 3, limit switch bearing 4, pressing plate 5, rope seat 6, steel rope 7, bolt of rear end plate 8, jam nut 9, support 10, base plate 11, baffle plate 12.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in drawings, a kind of tightness of steel wire rope inhibiting device, comprise steel rope 7, it is characterized in that being provided with plate spring 1, switch contact 2, limit switch 3, limit switch bearing 4, pressing plate 5, rope seat 6, bolt of rear end plate 8 and jam nut 9, steel rope 7 side is provided with plate spring 1, opposite side counterpiece spring 1 center is provided with pressing plate 5, plate spring 1 is respectively equipped with rope seat 6 near the two ends of steel rope 7 side, opposite side center is fixed with limit switch bearing 4, limit switch bearing 4 center is provided with support 10, pressing plate 5 and plate spring 1 are fixed on steel rope 7 through the bolt of rear end plate 8 of steel rope 7 both sides and jam nut 9 respectively, limit switch 3 one end is fixedly connected with support 10, the other end and switch contact 2 are hinged, switch contact 2 is corresponding with the position of rope seat 6, when steel rope 7 is stressed, steel rope 7 makes it to switch contact 2 Direction distortion by bending to stretch gradually and pass through rope seat 6 push-pads spring 1, at this moment namely plate spring 1 touches switch contact 2, make limit switch 3 action, when steel rope 7 do not stress or stressed less time, it is at pressing plate 5, rope seat 6 becomes case of bending with under the effect of plate spring 1, switch contact 2 is separated with plate spring 1, limit switch 3 is failure to actuate.
Seat 6 of restricting described in the present invention is intersected by the baffle plate 12 of base plate 11 and base plate 11 both sides fixedly to form, the curved projection of base plate 11 inside face, forms point cantact, reach the friction reduced steel rope 7 between the base plate 11 being beneficial to steel rope 7 and rope seat 6.
The present invention is when constructing, limit switch 3 is connected with control system, this device is fixed on steel rope 7 fixed end, operating personal is first with the operating switch on Non-follow control shelves operation operator's station, winch frequency converter drives winch machine operation, motor by transmission of power to reductor, reductor drives lifting drum to rotate, the unit head of the other end of the steel rope on reel and drilling tool are declined, in drilling tool decline process, steel rope is in strained condition all the time, steel rope 7 is stretching and make it to switch contact 2 Direction distortion by rope seat 6 push-pads spring 1, at this moment namely plate spring 1 touches switch contact 2, make limit switch 3 action and perception strained condition, reel one direct acting, after drilling tool gets into certain position, when steel rope 7 is in and does not stress state, it is at pressing plate 4, rope seat 6 becomes case of bending with under the effect of plate spring 1, switch contact 2 is separated with plate spring 1, limit switch 3 is failure to actuate, and then reel is quit work, avoid the steel rope 7 when not stressing state on reel to be kept in motion always, and cause steel rope to be stacked and confusion.
The present invention owing to adopting said structure, can perception arrived weight time control signal, perception can lose the control signal of weight again, avoid steel rope and to stack and chaotic, have that structure is simple, easy to operate, trouble free, advantage is installed, easy to adjust etc.
The present invention can be used on the equipment such as hoisting crane, when weight lands, can automatic cut-off power, and prevent steel rope from excessively stacking and chaotic.
Claims (2)
1. a tightness of steel wire rope inhibiting device, comprise steel rope, it is characterized in that being provided with plate spring, switch contact, limit switch, limit switch bearing, pressing plate, rope seat, bolt of rear end plate and jam nut, steel rope side is provided with plate spring, opposite side counterpiece spring center is provided with pressing plate, plate spring is respectively equipped with rope seat near the two ends of the side of steel rope, opposite side center is fixed with limit switch bearing, limit switch bearing center is provided with support, bolt of rear end plate respectively through steel rope both sides of pressing plate and plate spring and jam nut fixing on a steel cord, limit switch one end is fixedly connected with support, the other end and switch contact are hinged, switch contact is corresponding with the position of rope seat, when steel rope is stressed, rope stretches gradually by bending and makes it to switch contact Direction distortion by rope seat push-pads spring, at this moment namely plate spring touches switch contact, make limit switch action, when steel rope pine or stressed less time, it is at pressing plate, rope seat becomes case of bending with under the effect of plate spring, switch contact is separated with plate spring, limit switch is failure to actuate.
2. a kind of tightness of steel wire rope inhibiting device according to claim 1, is characterized in that described rope seat is intersected by the baffle plate of base plate and base plate both sides fixedly to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060742.9A CN103072917B (en) | 2013-02-27 | 2013-02-27 | Steel wire rope elasticity limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060742.9A CN103072917B (en) | 2013-02-27 | 2013-02-27 | Steel wire rope elasticity limiting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103072917A CN103072917A (en) | 2013-05-01 |
| CN103072917B true CN103072917B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310060742.9A Active CN103072917B (en) | 2013-02-27 | 2013-02-27 | Steel wire rope elasticity limiting device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113044687B (en) * | 2021-01-28 | 2022-09-20 | 艾陌极智能装备（深圳）有限公司 | Hanging basket steel wire rope damage detection device with stopping function |
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| CN86106658A (en) * | 1986-10-07 | 1988-04-20 | 北京市地质调查所 | Load indicator of steel cable |
| JPH08152369A (en) * | 1994-11-29 | 1996-06-11 | Asahi Glass Co Ltd | Method and device for measuring tension of wire rod |
| US5728953A (en) * | 1996-10-04 | 1998-03-17 | United States Department Of Energy | Cable load sensing device |
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| RU2244275C2 (en) * | 2002-01-17 | 2005-01-10 | Закрытое акционерное общество Научно-производственная фирма "Самарские Горизонты" | Device for measuring rope tension |
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| CN201610727U (en) * | 2010-02-12 | 2010-10-20 | 徐州博汇东明机械制造有限公司 | Winding displacement restrictor for core-drilling machine |
| CN101900621A (en) * | 2010-07-13 | 2010-12-01 | 合肥中铁钢结构有限公司 | Cable force detecting device for irregular self-stress tension integral structure |
| CN201678393U (en) * | 2010-05-24 | 2010-12-22 | 温州南方游乐设备工程有限公司 | Wire rope adjustor |
| CN201713251U (en) * | 2010-05-18 | 2011-01-19 | 宝山钢铁股份有限公司 | Device for warning looseness of steel wire ropes |
| CN102607756A (en) * | 2012-03-27 | 2012-07-25 | 申龙电梯股份有限公司 | Elevator steel wire rope tension detection device |
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2013
- 2013-02-27 CN CN201310060742.9A patent/CN103072917B/en active Active
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| CN86106658A (en) * | 1986-10-07 | 1988-04-20 | 北京市地质调查所 | Load indicator of steel cable |
| JPH08152369A (en) * | 1994-11-29 | 1996-06-11 | Asahi Glass Co Ltd | Method and device for measuring tension of wire rod |
| US5728953A (en) * | 1996-10-04 | 1998-03-17 | United States Department Of Energy | Cable load sensing device |
| CN2353717Y (en) * | 1998-11-23 | 1999-12-15 | 杭州电机总厂 | Displacement-spring type overload limiter |
| RU2244275C2 (en) * | 2002-01-17 | 2005-01-10 | Закрытое акционерное общество Научно-производственная фирма "Самарские Горизонты" | Device for measuring rope tension |
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| CN201610727U (en) * | 2010-02-12 | 2010-10-20 | 徐州博汇东明机械制造有限公司 | Winding displacement restrictor for core-drilling machine |
| CN201713251U (en) * | 2010-05-18 | 2011-01-19 | 宝山钢铁股份有限公司 | Device for warning looseness of steel wire ropes |
| CN201678393U (en) * | 2010-05-24 | 2010-12-22 | 温州南方游乐设备工程有限公司 | Wire rope adjustor |
| CN101900621A (en) * | 2010-07-13 | 2010-12-01 | 合肥中铁钢结构有限公司 | Cable force detecting device for irregular self-stress tension integral structure |
| CN102607756A (en) * | 2012-03-27 | 2012-07-25 | 申龙电梯股份有限公司 | Elevator steel wire rope tension detection device |
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| CN103072917A (en) | 2013-05-01 |
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