CN104608841B - Wire tractor - Google Patents

Wire tractor Download PDF

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Publication number
CN104608841B
CN104608841B CN201410202524.9A CN201410202524A CN104608841B CN 104608841 B CN104608841 B CN 104608841B CN 201410202524 A CN201410202524 A CN 201410202524A CN 104608841 B CN104608841 B CN 104608841B
Authority
CN
China
Prior art keywords
vehicle frame
wheel
tractor
reel
frame
Prior art date
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.)
Active
Application number
CN201410202524.9A
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Chinese (zh)
Other versions
CN104608841A (en
Inventor
倪涛
李军
李桂芹
冯巍
南靖
高东升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201410202524.9A priority Critical patent/CN104608841B/en
Publication of CN104608841A publication Critical patent/CN104608841A/en
Application granted granted Critical
Publication of CN104608841B publication Critical patent/CN104608841B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D63/00Motor vehicles or trailers not otherwise provided for
    • B62D63/02Motor vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/40Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
    • B65H75/42Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles
    • B65H75/425Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles attached to, or forming part of a vehicle, e.g. truck, trailer, vessel

Abstract

The invention belongs to the technical field of wire traction auxiliary devices, particularly relates to a wire tractor, and provides the wire tractor which is low in noise, capable of moving automatically and high in working efficiency. The wire tractor comprises a tractor frame body, wheels are arranged at the lower ends on the front portion and the rear portion of the tractor frame body, the wire tractor is structurally characterized in that a storage battery is arranged at the upper part of the rear portion of the tractor frame body, a driver seat is arranged at the position, in front of the battery, of the tractor frame body, a control console is arranged at the position, in front of the driver seat, of the tractor frame body, a steering wheel for controlling rotation directions of the wheels and a rotation and reverse rotation control switch for controlling a wheel driving motor are arranged on the control console, and a brake pedal for the wheels and a power switch pedal for the wheel driving motor are arranged at the lower end of the control console; a rotation driving box is arranged at the position, in front of the control console, of the tractor frame body, supporting racks are arranged on the two sides of the rotation driving box, a bearing is arranged on each supporting rack, transverse coiling blocks are arranged on the outer side of each supporting rack, a coiling block driving motor is arranged in the rotation driving box, and an output shaft of the coiling block driving motor is connected with a transmission shaft.

Description

Wire tractor
Technical field
A kind of the invention belongs to wire traction assisting device technical field, more particularly to wire tractor.
Background technology
Removing in overhead distribution engineering construction, setting-out work, high labor intensive, security risk are high, in work progress There is large effect to civic production, life, trip, particularly the rhythm of life of people is accelerated at present, to various environment More and more higher is required, this requires that we will reduce construction noise to greatest extent, reduces construction area area, when shortening operation Between, operation field is complicated, and vehicle, the various construction obstacles of pedestrian are very big to the impact kept the safety in production, and construction speed is greatly affected.This A little unfavorable factors, it is necessary to exclude, only effectively solve, can just try to achieve survival and development, while this is also that enterprise is necessary The social responsibility fulfiled.
The tension stringing equipment that we used in the past, due to using 20 horsepower diesels for power, noise is big, infinitely Power apparatus, precision are low, advance unstable, and live contact commander's trouble, employment quantity are more, and communication signal, semaphore be not smooth, using model Enclose limited, risk factor is big.
The content of the invention
The present invention is aiming at the problems referred to above, there is provided a kind of noise is little, can automatic moving, the wire traction of high working efficiency Car.
For achieving the above object, the present invention is adopted the following technical scheme that, the present invention includes vehicle frame, under vehicle frame front and rear part End is respectively provided with and wheel, is provided with accumulator above its structural feature vehicle frame rear portion, arranges on the vehicle frame in front of accumulator There is driver's seat, on the vehicle frame in front of driver's seat, be provided with operating board, on operating board, be provided with the side for controlling the wheel steering To the rotating controlling switch of disk and the wheel drive motors, operating board lower end is provided with the brake pedal of the wheel and institute State wheel drive motors on and off switch pedal;Rotation driving case, rotation driving case two is provided with vehicle frame in front of operating board Side is provided with bracing frame, is provided with bearing on bracing frame, is provided with horizontal reel, is provided with rotation driving case on the outside of bracing frame Reel motor, reel driving motor output shaft are connected with power transmission shaft, and power transmission shaft is connected with drum center axle by the bearing Connect, the controlling switch of reel motor is arranged on the operating board;Vehicle frame rear portion side is provided with main switch, institute State accumulator by main switch respectively with the wheel drive motors on and off switch pedal, the controlling switch phase of reel motor Even.
Used as a kind of preferred version, the front-end and back-end of vehicle frame of the present invention are provided with vertical internal thread hole, erect There is screw rod to internal thread hole inward turning, screw rod upper end is provided with transverse torque rod and wears ring, and screw rod lower end is provided with bearing.
Used as another kind of preferred version, the vertical internal thread hole of the front end of vehicle frame of the present invention is two, and symmetrically It is arranged on the both sides of vehicle frame;The vertical internal thread hole of the rear end of vehicle frame is one, is arranged on the centre of vehicle frame.
Used as another kind of preferred version, the front end of vehicle frame of the present invention is provided with the connecting portion being connected with snow removing plate Part, is provided with bolt connecting hole in connection member;The rear end of the vehicle frame is provided with fixed lacing hole;Support frame as described above upper end Hook of slinging is provided with face.
Used as another kind of preferred version, wheel of the present invention is four, and vehicle frame front and rear part is each and to be symmetrical arranged by two.
Used as another kind of preferred version, the number of reel of the present invention is four, each two per side, rotation driving case and It is symmetrical arranged, two reels of the same side are arranged along vehicle frame length direction.
As another kind of preferred version, on the vehicle frame in front of two reels foremost of the present invention, two are provided with Individual draught line is oriented to vertical cylinder, and the lower end for being oriented to vertical cylinder is vertical screw rod, and vertical screw rod passes through horizontal on vehicle frame Strip hole is simultaneously rotary with nut.
Used as another kind of preferred version, the medial extremity of two reels of the same side of the present invention is fixed by socket the first tooth Wheel, the first gear on two reels are engaged with the second gear between which, and the axle of second gear is arranged by clutch shaft bearing On support frame as described above;The reel of two reel front ends of the same side is used as drivewheel.
Secondly, change speed gear box is provided with rotation driving case of the present invention, gear box output end is connected with the power transmission shaft, Transmission input is provided with the first belt pulley, and the first belt pulley is by the in belt and the reel driving motor output shaft Two belt pulleys are connected, and transmission input is arranged on support frame as described above by second bearing, transmission input and the second axle It is connected by jaw clutch between holding, jaw clutch teeth corner is cambered surface, is provided with annular on transmission input Groove, is provided with the drive link of shift fork in cannelure, shift fork lower end is connected with cross level angle rod rear end, and cross level angle bar front end passes through and is arranged on car Anti-rotation guide pin bushing on support body is connected with brake handle bar bottom axle by cam, brake handle bar bottom by rotating shaft, connecting rod with The brake ribbon for controlling the power transmission shaft is connected, and is provided with annular protrusion, ring in the cannelure on the transmission input of side Jaw clutch back-moving spring is provided between shape projection medial wall and the rotation driving case lateral wall.
In addition, the first sprocket wheel on the output shaft of wheel drive motors of the present invention, is provided with, the vehicle frame rear portion two The second sprocket wheel is provided with connecting shaft between wheel, and the second sprocket wheel is connected by chain with the first sprocket wheel.
Beneficial effect of the present invention.
Accumulator of the present invention by main switch respectively with the wheel drive motors on and off switch pedal, reel motor Controlling switch be connected.Power is provided by accumulator, noise is little;And arrange wheel drive motors, the present invention can automatic moving, It is easy to use, time saving and energy saving, efficiency high.
The present invention is provided with the rotating controlling switch of wheel drive motors, wheel drive motors on and off switch pedal;Just In the movable control of the present invention.
Rotation driving case both sides of the present invention are provided with bracing frame, be provided with bearing, be provided with the outside of bracing frame on bracing frame Laterally reel, is provided with reel motor in rotation driving case, and reel driving motor output shaft is connected with power transmission shaft, power transmission shaft It is connected with drum center axle by the bearing;Reel is stable, and connection is reliable.
Description of the drawings
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to In the statement of herein below.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is another angled arrangement schematic diagram of the invention.
Fig. 3 is square structure schematic diagram on rear side of the present invention.
Fig. 4 is transmission input of the present invention, brake handle bar corresponding component structural representation.
Fig. 5 is transmission input of the present invention, brake handle bar corresponding component front view.
In figure, 1 be bearing, 2 be screw rod, 3 be connection member, 4 wear ring for torsion bar, 5 for being oriented to vertical cylinder, 6 being first Belt pulley, 7 be wheel, 8 be fixed lacing hole, 9 be accumulator, 10 be driver's seat, 11 be second gear, 12 be steering wheel, 13 For first gear, 14 be rotation driving case, 15 be brake handle bar, 16 for sling hook, 17 be reel, 18 be bracing frame, 19 For wheel drive motors on and off switch pedal, 20 be main switch, 21 be the rotating controlling switch of wheel drive motors, 22 for stopping Handlebar stem bottom axle, 23 be the second belt pulley, 24 be brake ribbon, 25 be cam, 26 be anti-rotation guide pin bushing, 27 be cross level angle bar, 28 For shift fork, 29 be transmission input, 30 be back-moving spring, 31 be annular protrusion, 32 be jaw clutch.
Specific embodiment
As illustrated, the present invention includes vehicle frame, vehicle frame front and rear part lower end is respectively provided with and wheel, its structural feature vehicle frame Accumulator is provided with above body rear portion, driver's seat is provided with the vehicle frame in front of accumulator, on the vehicle frame in front of driver's seat Operating board is provided with, the rotating for controlling the steering wheel and the wheel drive motors of the wheel steering on operating board, is provided with Controlling switch, operating board lower end are provided with the brake pedal of the wheel and the wheel drive motors on and off switch pedal;Behaviour Make on the vehicle frame in front of platform, to be provided with rotation driving case, rotation driving case both sides are provided with bracing frame, are provided with bracing frame Bearing, is provided with horizontal reel on the outside of bracing frame, be provided with reel motor, the output of reel motor in rotation driving case Axle is connected with power transmission shaft, and power transmission shaft is connected with drum center axle by the bearing, and the controlling switch of reel motor is arranged On the operating board;Vehicle frame rear portion side is provided with main switch, the accumulator by main switch respectively with it is described Wheel drive motors on and off switch pedal, the controlling switch of reel motor are connected.
The front-end and back-end of the vehicle frame are provided with vertical internal thread hole, are rotary with screw rod, spiral shell in vertical internal thread hole Bar upper end is provided with transverse torque rod and wears ring, and screw rod lower end is provided with bearing.Screw rod is set the height of bearing is conveniently adjusted by vehicle frame Body jack-up, when preventing spiral, vehicle frame movement;Ring is worn by torsion bar to be easy to rotate screw rod.
The vertical internal thread hole of the front end of the vehicle frame is two, and is symmetricly set on the both sides of vehicle frame;Vehicle frame Rear end vertical internal thread hole be one, be arranged on the centre of vehicle frame.Three screwed holes form stable triangular structure, It is easy to bearing by vehicle frame stable jack-up.
The front end of the vehicle frame is provided with the connection member being connected with snow removing plate, is provided with bolt connection in connection member Hole;The rear end of the vehicle frame is provided with fixed lacing hole.It is easy to be connected with snow removing plate by connection member, possesses the present invention Snow removing function, a tractor serves several purposes.It is easy to the present invention and fixture by fixed lacing hole(Such as big tree or building)Connection, prevents The movement of vehicle frame.
The wheel is four, and vehicle frame front and rear part is each and to be symmetrical arranged by two;Four-wheel is stable.
The number of the reel is four, and rotation driving case is each per side and to be symmetrical arranged, two reels of the same side by two Arrange along vehicle frame length direction.Four symmetrically arranged reels, spiral are stable.
Two draught lines are provided with vehicle frame in front of two reels foremost and are oriented to vertical cylinder, be oriented to The lower end of vertical cylinder is vertical screw rod, and vertical screw rod is through the horizontal strip hole on vehicle frame and is rotary with nut.It is oriented to vertical Cylinder is easy to be oriented to the path that is involved in of wire, arranges horizontal strip hole and is easy to be oriented to the regulation of vertical cylinder position.
The medial extremity of two reels of described the same side is fixed by socket first gear, the first gear on two reels with Second gear engagement between which, the axle of second gear are arranged on support frame as described above by clutch shaft bearing;Two of the same side The reel of reel front end is used as drivewheel.It is easy to the synchronous rotary of two reels of the same side by meshed transmission gear.
Change speed gear box is provided with the rotation driving case, gear box output end is connected with the power transmission shaft, change speed gear box input End is provided with the first belt pulley, and the first belt pulley is by the second belt pulley phase in belt and the reel driving motor output shaft Even, transmission input is arranged on support frame as described above by second bearing, is passed through between transmission input and second bearing Jaw clutch is connected, and jaw clutch teeth corner is cambered surface, is provided with cannelure, in cannelure on transmission input The drive link of shift fork is provided with, shift fork lower end is connected with cross level angle rod rear end, cross level angle bar front end is anti-on vehicle frame through being arranged on Transduction set is connected with brake handle bar bottom axle by cam, and brake handle bar bottom is by rotating shaft, connecting rod and the control biography The brake ribbon of moving axis is connected, and is provided with annular protrusion, on the inside of annular protrusion in the cannelure on the transmission input of side Jaw clutch back-moving spring is provided between wall and the rotation driving case lateral wall.Jaw clutch is set, when spiral is met Increase to obstruction, reel and by the frictional force between spiral(First will be twined between two reels of the same side by spiral during operation Around a circle, reel rotation traction traction is rolled up down by spiral), now torsion increase needed for transmission input, back-moving spring cannot When resisting this torsion, jaw clutch dislocation departs from, and reel runs out of steam;Simultaneously because jaw clutch dislocation makes change speed gear box defeated Enter end to translate to inner side, cannelure drives the drive link of shift fork to translate to inner side, drives cross level angle bar to rotate cam, drives brake Strap brake.Therefore, can effectively prevent from hindering as spiral is hampered, electric pole is forgotten about it into the generation of accident.
Hook of slinging is provided with support frame as described above upper surface.Setting hook of slinging is easy to the present invention slings transport.
The first sprocket wheel, the company between two wheel of vehicle frame rear portion is provided with the output shaft of the wheel drive motors The second sprocket wheel is provided with spindle, and the second sprocket wheel is connected by chain with the first sprocket wheel.The drive of wheel is easy to by sprocket wheel, chain It is dynamic.
It is understood that above with respect to the specific descriptions of the present invention, being merely to illustrate the present invention and being not limited to this Technical scheme described by inventive embodiments, it will be understood by those within the art that, still the present invention can be carried out Modification or equivalent, to reach identical technique effect;As long as meet use needs, all protection scope of the present invention it It is interior.

Claims (10)

1. wire tractor, including vehicle frame, vehicle frame front and rear part lower end is provided with wheel, it is characterised in that vehicle frame rear portion Accumulator is provided with above, driver's seat is provided with the vehicle frame in front of accumulator, is provided with the vehicle frame in front of driver's seat Operating board, is provided with the rotating controlling switch for controlling the steering wheel and wheel drive motors of the wheel steering on operating board, Operating board lower end is provided with the brake pedal of the wheel and wheel drive motors on and off switch pedal;Vehicle frame in front of operating board Rotation driving case is provided with body, and rotation driving case both sides are provided with bracing frame, are provided with bearing, on the outside of bracing frame on bracing frame Horizontal reel is provided with, reel motor in rotation driving case, is provided with, reel driving motor output shaft is connected with power transmission shaft, Power transmission shaft is connected with drum center axle by the bearing, and the controlling switch of reel motor is arranged on the operating board; Vehicle frame rear portion side is provided with main switch, the accumulator by main switch respectively with the wheel drive motors power supply Switch pedal, the controlling switch of reel motor are connected.
2. wire tractor according to claim 1, it is characterised in that the front-end and back-end of the vehicle frame are provided with perpendicular To internal thread hole, screw rod in vertical internal thread hole, is rotary with, screw rod upper end is provided with transverse torque rod and wears ring, and screw rod lower end is provided with props up Seat.
3. wire tractor according to claim 2, it is characterised in that the vertical internal thread hole of the front end of the vehicle frame is Two, and it is symmetricly set on the both sides of vehicle frame;The vertical internal thread hole of the rear end of vehicle frame is one, is arranged on vehicle frame It is middle.
4. wire tractor according to claim 3, it is characterised in that the front end of the vehicle frame is provided with and snow removing plate connects The connection member for connecing, is provided with bolt connecting hole in connection member;The rear end of the vehicle frame is provided with fixed lacing hole;It is described Hook of slinging is provided with bracing frame upper surface.
5. wire tractor according to claim 4, it is characterised in that the wheel is four, and vehicle frame front and rear part is each two And be symmetrical arranged.
6. wire tractor according to claim 5, it is characterised in that the number of the reel is four, and rotation driving case is every Side is each and to be symmetrical arranged by two, and two reels of the same side are arranged along vehicle frame length direction.
7. wire tractor according to claim 6, it is characterised in that on the vehicle frame in front of two reels foremost It is provided with two draught lines and is oriented to vertical cylinder, it is vertical screw rod that draught line is oriented to the lower end of vertical cylinder, vertical screw rod is passed through Horizontal strip hole on vehicle frame is simultaneously rotary with nut.
8. wire tractor according to claim 7, it is characterised in that the medial extremity socket of two reels of described the same side Fixed first gear, the first gear on two reels engages with the second gear between which, and the axle of second gear passes through the One bearing is arranged on support frame as described above;In two reels of the same side, the reel of front end is used as drivewheel.
9. wire tractor according to claim 8, it is characterised in that be provided with change speed gear box, speed change in the rotation driving case Case outfan is connected with the power transmission shaft, and transmission input is provided with the first belt pulley, and the first belt pulley passes through belt and institute The second belt pulley stated in reel driving motor output shaft is connected, and transmission input is arranged on the support by second bearing On frame, it is connected by jaw clutch between transmission input and second bearing, jaw clutch teeth corner is cambered surface, Cannelure is provided with transmission input, is provided with the drive link of shift fork, shift fork lower end and cross level angle rod rear end phase in cannelure Even, cross level angle bar front end with brake handle bar bottom axle is connected through the anti-rotation guide pin bushing being arranged on vehicle frame and by cam, is stopped Handlebar stem bottom is passed through rotating shaft and connecting rod and is connected with the brake ribbon for controlling the power transmission shaft, the speed change of side in the cannelure Be provided with annular protrusion on case input, be provided between annular protrusion medial wall and the rotation driving case lateral wall dental inlay from Clutch back-moving spring.
10. wire tractor according to claim 9, it is characterised in that be provided with the output shaft of the wheel drive motors First sprocket wheel, is provided with the second sprocket wheel, the second sprocket wheel and the first sprocket wheel in the connecting shaft between two wheel of vehicle frame rear portion Connected by chain.
CN201410202524.9A 2014-05-14 2014-05-14 Wire tractor Active CN104608841B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410202524.9A CN104608841B (en) 2014-05-14 2014-05-14 Wire tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410202524.9A CN104608841B (en) 2014-05-14 2014-05-14 Wire tractor

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CN104608841A CN104608841A (en) 2015-05-13
CN104608841B true CN104608841B (en) 2017-03-22

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882819A (en) * 2015-05-14 2015-09-02 山东省黄金电力公司 Bidirectional double-force cable tractor
CN105346610A (en) * 2015-11-27 2016-02-24 苏州先锋物流装备科技有限公司 Stand driving type motor tractor with adjustable backrest
CN105480089B (en) * 2016-01-20 2017-11-03 贾立术 Construction of Civil Engineering tractor
CN111244830B (en) * 2020-03-16 2020-12-01 中国能源建设集团西北电力建设工程有限公司 Cable traction machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508281A (en) * 1983-08-15 1985-04-02 Tse International Hydraulic drive system for cable stringing apparatus
CN201116253Y (en) * 2007-08-24 2008-09-17 江苏捷诚车载电子信息工程有限公司 Electric duplex coiling disk
CN201280366Y (en) * 2008-06-20 2009-07-29 许昌远方工贸有限公司 Multi-purpose cable winding apparatus
CN201864399U (en) * 2010-11-25 2011-06-15 原平市佳诚液压有限公司 Cable drum transmission mechanism
CN201951714U (en) * 2010-12-28 2011-08-31 威海广泰空港设备股份有限公司 Wheel-locking electric traction vehicle with cable reel
CN202346520U (en) * 2011-11-23 2012-07-25 单峰 Oilfield power supply cable winding and unwinding device
CN102674085B (en) * 2012-04-28 2014-10-01 浙江容大电力设备制造有限公司 Moving type cable winding device
CN203832607U (en) * 2014-05-14 2014-09-17 国家电网公司 Wire tractor

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