CN102593756B - Miniature tractor - Google Patents

Miniature tractor Download PDF

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Publication number
CN102593756B
CN102593756B CN201210073875.5A CN201210073875A CN102593756B CN 102593756 B CN102593756 B CN 102593756B CN 201210073875 A CN201210073875 A CN 201210073875A CN 102593756 B CN102593756 B CN 102593756B
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China
Prior art keywords
wheel
hydraulic motor
plate
guide
oil
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CN201210073875.5A
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Chinese (zh)
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CN102593756A (en
Inventor
王新朝
王延龙
张桂林
毛伟敏
陈栋
万冀杰
周雪涛
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HEBEI SENDS CHANGE ELECTRIC INDUSTRIAL Co Ltd
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Hebei Power Transmission and Transformation Co Ltd
Original Assignee
HEBEI SENDS CHANGE ELECTRIC INDUSTRIAL Co Ltd
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Hebei Power Transmission and Transformation Co Ltd
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Application filed by HEBEI SENDS CHANGE ELECTRIC INDUSTRIAL Co Ltd, State Grid Corp of China SGCC, State Grid Hebei Electric Power Co Ltd, Hebei Power Transmission and Transformation Co Ltd filed Critical HEBEI SENDS CHANGE ELECTRIC INDUSTRIAL Co Ltd
Priority to CN201210073875.5A priority Critical patent/CN102593756B/en
Publication of CN102593756A publication Critical patent/CN102593756A/en
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Abstract

The invention discloses a miniature tractor, which is mainly applied to the traction of a guiding rope in the initial stage of erection of a power transmission line. The miniature tractor comprises a grinding wheel mechanism, a control mechanism and a disk wheel for collecting the guiding rope. The control mechanism is connected with a power source through an oil pipe and a rapid joint, and comprises a control valve I, a hydraulic motor I, a control valve II and a hydraulic motor II. A small gear is arranged on an output shaft of the hydraulic motor I. The grinding wheel mechanism comprises a pair of grinding wheels. A large gear meshed with the small gear is arranged on the inner side of each of the two grinding wheels. Grooves for winding the guiding rope are formed on the outer circle of each grinding wheel. A guide wheel group is arranged at each of two positions opposite to an outlet groove and an inlet groove. The disk wheel is driven by the hydraulic motor II. The miniature tractor is small in volume, simple in structure and low in energy consumption. The power source is divided into independent parts so as to be conveniently transported in a mountain region. The miniature tractor is convenient to mount, and when other large-sized equipment is not arranged in place, the traction of the guiding rope can be started by the miniature tractor.

Description

Miniature tractor
Technical field
The present invention relates to a kind of hauling machine, specifically a kind of special Miniature tractor of the unfolding preliminary leading rope that erects power transmission lines.
Background technology
In transmission line construction, Poling Construction is one of work progress of most critical, and spreading guiding rope is the main contents of this work progress.At present, spreading guiding rope more and more adopts propeller-parachuting lightweight aircraft unwrapping wire.Propeller-parachuting lightweight aircraft unwrapping wire, after transmission tower, need to draw with hauling machine.Existing hauling machine unit is not only bulky, complex structure, and Installation and Debugging process is loaded down with trivial details, needs the time long, has a strong impact on construction period; And complicated operation, need to be through professional training personnel operation.The more important thing is that the energy consumption of traction unit own is high, traction preliminary leading rope belongs to low load with strong power, causes energy dissipation.Use existing hauling machine traction preliminary leading rope, also have the excessive problem of tractive effort, in the time occurring squeezing the faults such as rope, do not mate with guide rope tension force, easily preliminary leading rope yarn is led disconnectedly, affect construction schedule.Poling Construction adopts the mode of lease hauling machine at present, and the engineering time is longer, and lease expenses is higher.Be compact line for Novel line, its wire adopts six splitted construction, and every phase conductor is made up of six roots of sensation sub-conductor, for this circuit that need to unfold many preliminary leading ropes, propeller-parachuting lightweight aircraft can only be taked unwrapping wire in batches, longevity of service, efficiency is low, expense is high, if run into Changes in weather, cannot fly time, more can extend construction period, use traction unit traction guide rope, not only increase lease expenses, more increased fuel consume.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of Miniature tractor, are particularly useful for the low Miniature tractor of small volume and less weight, energy consumption of transmission line unfolding preliminary leading rope.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
Miniature tractor, comprise and be arranged on the emery wheel mechanism of frame one end and control the hydraulic control that emery wheel mechanism rotates, be provided with the plate wheel of collecting guide rope at the other end of frame, controlling organization is connected and forms the loop of hydraulic oil with power source by oil pipe and snap joint; Described power source comprises the engine that is arranged on base, by engine-driven oil pump and be the fuel tank of oil pump oil storage; Described controlling organization comprises the control valve I and hydraulic motor I and control valve II and the hydraulic motor II that are connected by oil pipe with oil pump, on the output shaft of hydraulic motor I, be provided with pinion, described emery wheel mechanism comprises a pair of emery wheel being arranged on respectively on the support box being fixedly connected with frame, and the inner side of two emery wheels arranges respectively the gear wheel engaging with pinion; On the cylindrical of described emery wheel, be provided with and be wound around the groove of guide rope, arrange and have respectively guide wheel group in two positions of the groove of corresponding outlet and lambda line, described guide wheel group comprises two the vertical guide wheels and the horizontal guide wheel that are arranged on wheel bracket; Described plate wheel is driven by hydraulic motor II, is also provided with the wire-arranging mechanism of the guide rope that distributes on plate wheel between plate wheel and guide wheel group.
Further improvement of the present invention is: described controlling organization is also connected with cooling device to the oil pipe between power source; Cooling device is connected in the frame between controlling organization and plate wheel; Described cooling device comprises that hydraulic oil is heat radiator dedicated, is provided with electric fan in a side of radiator, and electric fan provides power supply by storage battery.
Further improvement of the present invention is: described plate wheel is erected at by a transverse axis on the support of frame end, and described transverse axis two ends arrange the driver plate of the drive plate wheel rotation of inserting in plate wheel end frame; One end of described support is provided with top with the column of groove of depositing transverse axis, on the column of the other end of support, laterally fix a minor axis, the end of minor axis is provided with the groove that sets up transverse axis equally, described transverse axis is placed in the groove of above-mentioned column and minor axis, on minor axis, by bearing, one sprocket wheel being driven by hydraulic motor II is set, on the end face of sprocket wheel, be connected with pusher dog, pusher dog coordinates with driver plate overlap joint; Also be provided with the briquetting of compression driver plate in the transverse axis one end in the outside of driver plate.
The further improvement of technique scheme of the present invention is: described pusher dog is movably connected in by bearing pin in the driving lever being fixedly connected with sprocket wheel, one end and side at pusher dog respectively arrange a shrinkage pool, one push rod with spring is set in the end of driving lever, and the end of push rod and shrinkage pool coordinate.
Further improvement of the present invention is: described wire-arranging mechanism comprises a creel stand, the cross bar on creel stand top is provided with a coaster with guide roller, on coaster, connect a lever by vertical chute, the mid point of lever is hinged on the cross bar at creel stand middle part, the lower hinge of lever is on the slide block of the vertical chute of a band, slide block is connected with an oil cylinder, final position at the corresponding slide block in one end, creel stand bottom arranges a hydraulicdirectional control valve, and reversal valve and a governing valve are connected between oil cylinder and controlling organization control valve II.
Owing to having adopted technique scheme, the technological progress that the present invention obtains is:
Miniature tractor volume of the present invention is little, price is low, simple in structure, energy consumption is little, operation without professional training, its initial stage that is mainly applicable to erect power transmission lines is used while leading preliminary leading rope.Power source is separated into independently part by the present invention, using scene assembling by oil pipe, monomer weight alleviated, be convenient to the transports such as mountain region, its convenient installation, in the time that other main equipment is not yet in place, the present invention can start to draw the work of guide rope.The hydraulic motor I of the control emery wheel of controlling organization of the present invention is greater than the hydraulic motor II of controlling plate wheel, so that further weight reduction.
The simplest mode for cooling device of the present invention, its power supply also can transport in split, and hydraulic oil is heat radiator dedicated not only can be good at heat radiation, and can bear the pressure of hydraulic oil.Plate wheel of the present invention can be rack-mount easily, and conveniently take off.The sprocket wheel being driven by hydraulic motor II when work rotates together with pusher dog, and pusher dog contacts with the driver plate of stirring plate wheel one end, drives driver plate and plate wheel to rotate.Pusher dog is movably articulated in driving lever, can overlap with driver plate, thereby stir plate wheel in the time that pusher dog is laterally outer, and when pusher dog is when forward driving lever is inner, plate wheel and sprocket wheel are removed overlap joint, and plate wheel can freely rotate, and is that the reversing unwrapping wire of plate wheel is provided convenience like this.The arranging of push rod can make pusher dog laterally and forward locate on both direction.Transverse axis is put at the center of the plate wheel of winding guide rope of the present invention, the each driver plate that inserts in outside of the two ends plate wheel of transverse axis, on driver plate, there is dog to insert in the framework of end face of plate wheel, the briquetting location coordinating with transverse axis is being used in the outside of one of them driver plate, like this plate wheel, connection transverse axis, driver plate, briquetting are placed in the groove of support and minor axis together, the not pusher dog of the one end with briquetting and sprocket wheel one end overlap joint, driver plate just can rotate under the drive of sprocket wheel.
Wire-arranging mechanism of the present invention utilizes existing hydraulic oil for power, and structure is very simple, not only can realize winding displacement, and lightweight.Guide wheel group of the present invention is made up of two vertical guide wheels and a horizontal guide wheel, and it can make guide rope accurately import and derive.
Brief description of the drawings
Fig. 1 is agent structure schematic diagram of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the structural representation of power source of the present invention;
Fig. 4 is the plan structure schematic diagram of Fig. 3;
Fig. 5 is the schematic diagram of wire-arranging mechanism of the present invention;
Fig. 6 is the schematic diagram of the pusher dog of invention.
Wherein, 1, frame, 2, power source, 3, plate wheel, 4, emery wheel mechanism, 5, cooling device, 6, controlling organization, 7, guide wheel group, 8, wire-arranging mechanism, 21, engine, 22, oil pump, 23, fuel tank, 30, projection, 31, hydraulic motor II, 32, sprocket wheel, 33, support, 34, transverse axis, 35, minor axis, 36, pusher dog, 36-1, push rod, 37, driver plate, 38, driving lever, 39, briquetting, 41, hydraulic motor I, 42, support box, 43, emery wheel, 44, gear wheel, 45, pinion, 61, control valve I, 62, control valve II, 71, vertical guide wheel, 72, horizontal guide wheel, 73, wheel bracket, 80, creel stand, 81, coaster, 82, lever, 83, slide block, 84, oil cylinder, 85, reversal valve.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details:
Miniature tractor of the present invention mainly comprises plate wheel 3 and emery wheel mechanism 4 and drives plate wheel and controlling organization 6 and the power source 2 of the rotation of emery wheel mechanism.Hydraulic power is provided to plate wheel 3 and emery wheel mechanism 4 by power source 2, the size, plate wheel 3 and the emery wheel mechanism 4 that control hydraulic power by controlling organization 6 turn round or stop, and draw guide rope, and by plate wheel 3, guide rope is wound up by emery wheel mechanism 4.
The emery wheel mechanism 4 of Miniature tractor is arranged on one end of frame 1, and controlling organization 6 is controlled emery wheel mechanism 4 and rotated, and controlling organization 6 comprises hydraulic motor I 41 and a small-sized hydraulic motor II 31 of control valve I 61 and control valve II 62 and a band brake.Controlling organization 6 is connected by oil pipe and snap joint with hydraulic power supply 2, forms the circulation circuit of hydraulic oil.Power source 2 mainly comprises the engine 21, oil pump 22 and the fuel tank 23 that are arranged on base.GED oil pump 22 turns round, and oil pump is squeezed into control valve I 61 and control valve II 62 by oil pipe by hydraulic oil, and control valve I 61 and control valve II 62 are communicated with by oil pipe with hydraulic motor I 41 and hydraulic motor II 31 respectively.Control valve I 61 and control valve II 62 adopt multiple directional control valve, can realize and limit maximum pressure and forward and reverse control.By operating grip control control valve, thereby realize, the pressure of plate wheel 3 and emery wheel mechanism 4 regulated and starts and stop, and realizing the forward and reverse conversion of guide rope winding direction.Control valve I is main control valve, and it controls hydraulic motor I, and hydraulic motor I arranges on the support box 42 of one end of frame 1, is used for driving the rotation of emery wheel mechanism 4; Hydraulic motor II is arranged on the other end of frame 1, and it is used for driving plate wheel 3.
On the oil pipe of the oil outlet end of hydraulic motor I 41 and hydraulic motor II 31, be also connected with cooling device 5.Hydraulic oil in oil pump 22 enters respectively control valve I and hydraulic motor I and control valve II and hydraulic motor II by oil pipe, and after the cooling device 5 of then flowing through is cooling, is back in fuel tank 23 and stores, and then for oil-feed pump 22.Like this through the hydraulic oil of High Pressure when through apparatus for supercooling 5, just can obtain fully coolingly, become the hydraulic oil of normal temperature after getting back to fuel tank, to again circulate.
Cooling device 5 is connected in the frame 1 between controlling organization 6 and plate wheel 3; Cooling device 5 comprises that hydraulic oil is heat radiator dedicated, is provided with electric fan in a side of radiator, and electric fan provides power supply by storage battery.
On the output shaft of hydraulic motor I 41, be provided with a pinion 45, emery wheel mechanism 4 is arranged on a side of hydraulic motor II.Emery wheel mechanism 4 comprises a pair of emery wheel 43, between emery wheel 43 and hydraulic motor II, be provided with support box 42, support box 42 is fixed in frame 1, and two emery wheels 43 are installed in parallel in respectively a side of support box, and hydraulic motor II is arranged on the opposite side of support box 42, the centre of two emery wheels 43.The inner side of two emery wheels 43 is respectively arranged with gear wheel 44 near a side of support box 42, two gear wheel 44 sizes are identical, gear wheel 44 engages with pinion 45 respectively, gear wheel and the coaxial setting of emery wheel 43 are also fixed together with two emery wheels 43 respectively, and hydraulic motor II drives gear wheel and emery wheel 43 synchronously to rotate by pinion.
The other end in the relative emery wheel mechanism 4 of frame 1 arranges a support 33, and described plate wheel 3 is arranged on support 33.The center of plate wheel 3 is installed with a transverse axis 34, then respectively place again a driver plate 37 at transverse axis two ends, two dogs of driver plate 37 1 side band, dog inserts in the gap of framework of plate wheel 3, then in the outside of transverse axis 34, a briquetting 39 is set again, briquetting 39 is connected with transverse axis 34 by screw thread, and briquetting 39 is pressed on driver plate on transverse axis.Plate wheel 3 just can rotate together with driver plate 37 like this.Support 33 comprises two root posts, wherein a groove is arranged at the top of a root post, on the column of the other end of support 33, weld a horizontal minor axis 35, this minor axis 35 points to another root post, the end of this minor axis 35 also arranges a groove, transverse axis 34 is erected in these above-mentioned two grooves, wherein on transverse axis, is not placed in the groove of minor axis 35 with one end of briquetting 39.On minor axis, installed a sprocket wheel 32 is set by bearing, this sprocket wheel 32 is connected by the sprocket wheel on the output shaft of chain and hydraulic motor II 31.The sprocket wheel 32 being driven by hydraulic motor II 31.On sprocket wheel 32, be connected with pusher dog 36, pusher dog 36 extend in driver plate 37 frame gap, coordinates with driver plate 37 overlap joints, rotates to stir driver plate and plate wheel.The concrete mounting means of pusher dog 36 is: be fixedly connected with a driving lever 38 in the side of sprocket wheel 32, output a groove on driving lever 38, pusher dog 36 is arranged in this groove, then uses bearing pin cross-under, pusher dog 36 can be produced to plate wheel direction around bearing pin, and become plumbness.One push rod 36-1 is set in the end of driving lever 38, a spring is set on push rod 36-1.Approach at pusher dog 36 on the end face of one end of bearing pin a shrinkage pool is set, side at pusher dog 36 also arranges a shrinkage pool, make pusher dog 36 in the time returning to driving lever 38 inside and reach driving lever 38 outside, push rod 36-1 can hold out against pusher dog 36, and the end of push rod 36-1 and shrinkage pool coordinate.Can also weld the projection 30 with pusher dog 36 corresponding matching in the outside of driver plate 37.
On the cylindrical of each emery wheel 43, be provided with some roads groove, groove is used for being wound around guide rope.Two positions at the groove of corresponding emery wheel 43 outlets and lambda line are respectively arranged with a guide wheel group 7; Guide wheel group 7 is fixedly connected in frame 1 by wheel bracket 73.Guide wheel group 7 is made up of two vertical vertical guide wheels 71 that arrange and the horizontal guide wheel 72 of a horizontally set, and vertical guide wheel 71 is placed in the two ends of horizontal guide wheel 72, and is positioned at the both sides of horizontal guide wheel 72.
Between the guide wheel group 7 of outlet and plate wheel 3, be also provided with wire-arranging mechanism 8, wire-arranging mechanism 8 is for making guide rope be wound around and be arranged in plate wheel 3 uniformly.Wire-arranging mechanism comprises a creel stand 80, and creel stand 80 is laterally fixed in frame 1, and the cross bar on the top of creel stand 80 is provided with a coaster 81 with guide roller, and this guide roller also can be arranged to as the guide wheel group of guide wheel group 7 one spline structures.On coaster 81, have a vertical chute, connect one end of a lever 82 in chute, the mid point of lever 82 is hinged on the cross bar at creel stand 80 middle parts, and the bottom of lever 82 is connected on a slide block 83, and it is also that chute by vertical is hinged that lever 82 is connected with slide block 83.Slide block 83 is connected with an oil cylinder 84 again, the hydraulicdirectional control valve 85 of two four-ways is set in creel stand 80 one end, bottom, the final position of the corresponding slide block 83 in position of reversal valve 85, then reversal valve 85 and a governing valve are connected between oil cylinder 84 and control valve II 62 together.Governing valve can regulate the stretching speed of oil cylinder, and reversal valve is in the direction of motion through all can change oil cylinder after the pressing of slide block at every turn.
Because traction preliminary leading rope needs tractive effort smaller, the engine 21 in power source 2 can adopt lower-powered power-equipment, so greatly reduced fuel consume.Engine 21 drives oil pump 22 to provide hydraulic power for emery wheel mechanism 4 and plate wheel 3, can control pressure by controlling organization 6, occurs that fortuitous event shuts down at any time.In the time pulling joystick to different directions, make emery wheel 43 and or plate wheel do forward or rotate backward, thereby realize traction or discharge the function of guide rope.The size of regulator solution pressure control valve pressure, also can change the size of tractive effort.

Claims (5)

1. Miniature tractor, it is characterized in that: comprise and be arranged on the emery wheel mechanism (4) of frame (1) one end and control the hydraulic control (6) that emery wheel mechanism (4) rotates, be provided with and collect the plate wheel (3) of guide rope at the other end of frame (1), controlling organization (6) is connected and is formed the loop of hydraulic oil by oil pipe and snap joint and power source (2); Described power source (2) comprises the engine (21) that is arranged on base, by engine-driven oil pump (22) and be the fuel tank (23) of oil pump (22) oil storage; Described controlling organization (6) comprises the control valve I (61) and hydraulic motor I (41) and control valve II (62) and the hydraulic motor II (31) that are connected by oil pipe with oil pump (22), on the output shaft of hydraulic motor I (41), be provided with pinion (45), described emery wheel mechanism (4) comprises a pair of emery wheel (43) being arranged on respectively on the support box (42) being fixedly connected with frame (1), and the inner side of two emery wheels (43) arranges respectively the gear wheel (44) engaging with pinion (45); On the cylindrical of described emery wheel (43), be provided with the groove that is wound around guide rope, two positions at the groove of corresponding outlet and lambda line are provided with guide wheel group (7), and described guide wheel group (7) comprises two the vertical guide wheels (71) and the horizontal guide wheel (72) that are arranged on wheel bracket (73); Described plate wheel (3) is driven by hydraulic motor II (31), is also provided with the wire-arranging mechanism at the upper distribution guide rope of plate wheel (3) between plate wheel (3) and guide wheel group (7).
2. Miniature tractor according to claim 1, is characterized in that described controlling organization (6) is also connected with cooling device (5) to the oil pipe between power source (2); Cooling device (5) is connected in the frame (1) between controlling organization (6) and plate wheel (3); Described cooling device (5) comprises that hydraulic oil is heat radiator dedicated, is provided with electric fan in a side of radiator, and electric fan provides power supply by storage battery.
3. Miniature tractor according to claim 1, it is characterized in that described plate wheel (3) is erected at by a transverse axis (34) on the support (33) of frame (1) end, described transverse axis two ends arrange the driver plate (37) that inserts the drive plate wheel rotation in plate wheel (3) end frame; One end of described support (33) is provided with top with the column of groove of depositing transverse axis (34), on the column of the other end of support (33), laterally fix a minor axis (35), the end of minor axis is provided with the groove that sets up transverse axis (34) equally, described transverse axis (34) is placed in the groove of above-mentioned column and minor axis (35), on minor axis, by bearing, one sprocket wheel (32) being driven by hydraulic motor II (31) is set, on the end face of sprocket wheel (32), be connected with pusher dog (36), pusher dog (36) coordinates with driver plate (37) overlap joint; On the transverse axis (34) in the outside of driver plate, be also provided with the briquetting (39) that compresses driver plate.
4. Miniature tractor according to claim 3, it is characterized in that described pusher dog (36) is movably connected in by bearing pin in the driving lever (38) being fixedly connected with sprocket wheel (32), one end and side at pusher dog (36) respectively arrange a shrinkage pool, one push rod (36-1) with spring is set in the end of driving lever (38), and the end of push rod (36-1) and shrinkage pool coordinate.
5. Miniature tractor according to claim 1, it is characterized in that described wire-arranging mechanism comprises a creel stand (80), the cross bar on creel stand (80) top is provided with a coaster (81) with guide roller, coaster (81) is upper connects a lever (82) by vertical chute, the mid point of lever (82) is hinged on the cross bar at creel stand (80) middle part, the lower hinge of lever (82) is on the slide block (83) of the vertical chute of a band, slide block (83) is connected with an oil cylinder (84), final position at creel stand (80) the bottom corresponding slide block in one end (83) arranges a hydraulicdirectional control valve (85), reversal valve (85) and a governing valve are connected between oil cylinder (84) and the control valve II (62) of controlling organization (6).
CN201210073875.5A 2012-03-20 2012-03-20 Miniature tractor Active CN102593756B (en)

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CN102593756B true CN102593756B (en) 2014-09-10

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110048339B (en) * 2019-04-26 2024-02-09 国网山东省电力公司成武县供电公司 Wire stretcher for electric power construction

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Publication number Priority date Publication date Assignee Title
CN2293913Y (en) * 1997-04-29 1998-10-07 王运生 All-hydraulic self-walking tension paying out protractor
CN201663386U (en) * 2010-01-13 2010-12-01 温县永恩电力机具有限公司 Pull-type electric tractor for tension stringing of power transmission lines
CN202004379U (en) * 2011-03-22 2011-10-05 辽宁省电力有限公司丹东供电公司 Conducting wire power tractor
CN202474782U (en) * 2012-03-20 2012-10-03 河北省送变电公司 Mini-type traction machine

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Publication number Priority date Publication date Assignee Title
ATA25697A (en) * 1997-02-17 1998-04-15 Plasser Bahnbaumasch Franz MACHINE FOR LAYING A WIRING OF A CABLE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2293913Y (en) * 1997-04-29 1998-10-07 王运生 All-hydraulic self-walking tension paying out protractor
CN201663386U (en) * 2010-01-13 2010-12-01 温县永恩电力机具有限公司 Pull-type electric tractor for tension stringing of power transmission lines
CN202004379U (en) * 2011-03-22 2011-10-05 辽宁省电力有限公司丹东供电公司 Conducting wire power tractor
CN202474782U (en) * 2012-03-20 2012-10-03 河北省送变电公司 Mini-type traction machine

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Title
JP特开平10-244859A 1998.09.14

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