CN217708775U - Large-section power cable lifting device - Google Patents

Abstract

The utility model relates to a big cross-section power cable hoisting device, include: the hydraulic cable lifting device comprises a chassis, a support, a hydraulic mechanism, a cable lifting assembly, a cable fixing assembly, a power system, a moving assembly and an operation panel, wherein the support is vertically fixed on the chassis, and the chassis is positioned on one side of the support; the hydraulic mechanism is fixed on the chassis; the cable lifting assembly is slidably connected with the bracket, and the hydraulic mechanism is arranged at the bottom of the cable lifting assembly and is connected with the cable lifting assembly; the cable fixing component is arranged on one side of the bracket and is connected with the cable lifting component; the power system is arranged on the other side of the bracket and is electrically connected with the hydraulic mechanism; the moving assembly is arranged at the bottom of the chassis; the operation panel is arranged on the other side of the bracket and is electrically connected with the power system. The lifting device obviously reduces the labor cost, improves the safety coefficient of work, shortens the working period time, and solves the practical problems of large workload, easy error, high construction cost, poor synchronism and the like in the lifting process of the transformer substation cable.

Description

Large-section power cable lifting device

Technical Field

The utility model belongs to the technical field of the electric power installation, concretely relates to big cross-section power cable hoisting device.

Background

With the increase of urban power supply, 330kV large-section cables are increasingly applied to urban power grid construction. Laying a large-section cable line can not only improve the transmission capacity of the line and reduce the outgoing line scale of a transformer substation, but also reduce the pressure on the aspect of a transmission line channel, improve the utilization rate of the channel and simplify the wiring of a power grid. With the further development of urbanization, the application of large-section power cables will become more and more common. In the cable laying process, the lifting of a cable in a tunnel is a key construction link, how to improve the lifting efficiency of the cable is an important index for measuring the installation efficiency of a large-section power cable line, and the method also becomes a key problem to be solved in the construction process of the large-section power cable line.

At present, when laying a high-voltage heavy cable, construction workers need to lift the cable to a certain height, under the previous construction conditions and technical conditions, a manual lifting mode is mainly adopted for lifting the high-voltage heavy cable, namely at least two workers are arranged at intervals along the cable, and thus the cable is lifted to a preset support layer by a mode of carrying on the shoulder by people along the cable row.

The manual lifting mode has the following problems: 1. the construction cost is high: generally, a laid high-voltage cable is long in length, large in section and heavy in mass per unit length, a pure manpower lifting mode is adopted, a large amount of labor force is required, and construction cost is high; 2. the work efficiency is low: due to the fact that the cable is high in mass, the requirement on physical quality of construction workers is high in a pure manpower lifting mode, the workers need to cooperate in the process of transferring the cable from low to high, the one-time forming rate is low, and the construction efficiency is low; 3. the safety factor is low: when a manual lifting mode is adopted, heavy cables need to be manually lifted, and the construction potential safety hazards are high; 4. the management and control difficulty is large: because many people are needed to cooperate and carry simultaneously, the working face is relatively disordered, the coordination difficulty of field management personnel is high, and the construction cooperation and safety control are not convenient.

Therefore, the mode of adopting manpower to promote all has certain defect in the aspects such as safety management and control, construction cost and production efficiency of cable promotion in-process, has seriously restricted the job schedule that big cross-section power cable line cable promoted.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem existing in the prior art, the utility model provides a large cross-section power cable hoisting device. The to-be-solved technical problem of the utility model is realized through following technical scheme:

an embodiment of the utility model provides a large cross-section power cable hoisting device, include: chassis, support, hydraulic pressure mechanism, cable lifting unit, cable fixed subassembly, driving system, removal subassembly and operating panel, wherein,

the bracket is vertically fixed on the chassis, and the chassis is positioned on one side of the bracket; the hydraulic mechanism is fixed on the chassis; the cable lifting assembly is slidably connected with the bracket, the hydraulic mechanism is arranged at the bottom of the cable lifting assembly and connected with the cable lifting assembly, and the cable lifting assembly can ascend or descend along the bracket under the driving of the hydraulic mechanism; the cable fixing component is arranged on one side of the bracket and is connected with the cable lifting component so as to move along with the movement of the cable lifting component; the power system is arranged on the other side of the bracket and is electrically connected with the hydraulic mechanism so as to provide power for the hydraulic mechanism; the moving assembly is arranged at the bottom of the chassis to horizontally move the cable lifting device; the operation panel is arranged on the other side of the support and is electrically connected with the power system.

The utility model discloses an embodiment, hydraulic pressure mechanism includes the hydraulic stem, wherein, the one end of hydraulic stem is fixed on the chassis, the other end is fixed in on the cable hoisting component.

In one embodiment of the invention, the cable lifting assembly comprises a lifting frame, a rotary rod, a first hinge and a second hinge, wherein,

the lifting frame is slidably connected with the bracket, and the lifting frame can slide along the bracket to ascend or descend; the rotating rod is vertically arranged at the end part of the hydraulic mechanism and is close to the lifting frame; the first hinge is wound at one end of the rotating rod and is positioned at one side of the hydraulic mechanism, and the end part of the first hinge is connected with the cable fixing component; the second hinge is wound at the other end of the rotating rod and is positioned at the other side of the hydraulic mechanism, and the end part of the second hinge is connected with the cable fixing component.

In one embodiment of the present invention, the cable fixing assembly comprises a first fixing assembly and a second fixing assembly, wherein,

the first fixing component is arranged on the lifting frame and connected with the first hinge; the second fixing component is arranged on the lifting frame and connected with the second hinge; the first fixing component and the second fixing component are arranged in parallel and are at a certain distance.

In one embodiment of the present invention, the first fixing assembly and the second fixing assembly each comprise a cable fork, a fixing rope and a cable hook, wherein,

the end part of the cable fork is vertically arranged on the lifting frame and is connected with the first hinge or the second hinge;

one end of the fixed rope is connected with the cable fork, and the other end of the fixed rope is connected with the cable lifting hook.

The utility model discloses an in the embodiment, still be provided with a plurality of fixed positions on the cable fork, a plurality of fixed positions are followed the axial of cable fork sets gradually.

In an embodiment of the present invention, the power system comprises an electric mechanism and a battery, wherein the battery is connected to the electric mechanism, and the electric mechanism is connected to the hydraulic mechanism.

In one embodiment of the present invention, the moving assembly comprises a first universal wheel, a second universal wheel, a first roller, and a second roller, wherein,

the first universal wheel and the second universal wheel are arranged at the bottom of a supporting plate below the power system, and the first roller wheel and the second roller wheel are arranged at the bottom of the chassis.

The utility model discloses an embodiment, operating panel includes switch, electric door lock, power display table and lift control button, switch the electric door lock the power display table and lift control button all with driving system connects.

In an embodiment of the utility model, still include and pull the handle, it fixes to pull the handle the opposite side of support.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a cable hoisting device has the steady operation, and convenient operation is simple, and easy maintenance, noiselessness, characteristics such as pollution-free, provide brand-new working method for relevant work unit, obviously alleviate the human cost, the factor of safety of work has been improved, the duty cycle time has been shortened, it is big to have solved transformer substation's cable hoisting in-process work load, easily make mistakes, construction cost is high, actual problems such as synchronism difference, the work efficiency of transformer substation's cable hoisting work progress has been optimized, construction cycle has been shortened, finally, realize power cable line cable hoisting process full automatization, positive security benefits has, economic benefits and social.

Drawings

Fig. 1 is a schematic structural view of a large-section power cable lifting device according to an embodiment of the present invention;

fig. 2 is a schematic side view of a large-section power cable lifting device according to an embodiment of the present invention;

fig. 3 is a schematic view of an operation panel according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to specific examples, but the present invention is not limited thereto.

Example one

This embodiment provides a safe and reliable, the cable hoisting device of simple operation, this cable hoisting device's design uses the actual problem that big cross-section power cable line cable promoted the in-process and meet as the direction, from satisfying technical and engineering requirement, combine the parameter of cable and promote high requirement, with the work efficiency that improves the cable hoisting process of transformer substation and reduce cost of labor in the work progress as the target, a set of new equipment that can realize power cable line cable and promote full automation of process has been researched and developed, the problem that appears in the cable hoisting process is solved.

Please refer to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a large-section power cable lifting device provided by an embodiment of the present invention, and fig. 2 is a schematic side view of the large-section power cable lifting device provided by an embodiment of the present invention.

The cable lifting device comprises: the device comprises a chassis 1, a bracket 2, a hydraulic mechanism 3, a cable lifting assembly 4, a cable fixing assembly 5, a power system 6, a moving assembly 7 and an operation panel 8. Wherein, the support 2 is vertically fixed on the chassis 1, and the chassis 1 is positioned at one side of the support 2. The hydraulic mechanism 3 is fixed on the chassis 1. Cable lifting component 4 and support 2 slidable connection, hydraulic pressure mechanism 3 sets up in the bottom of cable lifting component 4 and is connected with cable lifting component 4, and cable lifting component 4 can rise or descend along support 2 under the drive of hydraulic pressure mechanism 3. The cable fixing member 5 is disposed at one side of the bracket 2 and fixed to the cable lifting member 4 to move along with the movement of the cable lifting member 4. The power system 6 is arranged on the other side of the bracket 2 and is electrically connected with the hydraulic machine 3 for supplying power to the hydraulic machine 3. A moving assembly 7 is provided at the bottom of the chassis 1 to horizontally move the cable lifting device. The operation panel 8 is disposed on the other side of the stand 2 and is electrically connected to the power system 6.

Specifically, the chassis 1 is used for satisfying the mechanical stability of the cable lifting and positioning process, and adopts a detachable structure. The chassis 1 may be a plate-like structure or a rod-like structure, for example, the chassis 1 in fig. 1 is formed by 2 independent rod-like structures. The bracket 2 serves as a support structure for supporting the cable lifting assembly 4 and the cable fixing assembly 5. The hydraulic pressure mechanism 3 is as cable lifting platform driving system, and it adopts the mode of electricity to drive, and drive cable lifting means 4 rises or descends along support 2 to drive cable fixing means 5 and rise or descend, realize the promotion of cable. The power system 6 powers the hydraulic machine 3. The moving assembly 7 is used for realizing the horizontal moving operation of the device. The operation panel 8 provides an operator interface so that the operator can perform operations of lifting, lowering, electric locking, emergency stop, and display the operation state of the system.

Furthermore, chassis 2, cable fixed subassembly 5 all are located the same side of support to form "C" type vehicle body frame, thereby when the cable is fixed and is carried out the promotion on cable fixed subassembly 5, can ensure firm promotion atress structure.

In a specific embodiment, the hydraulic mechanism 3 comprises a hydraulic rod, wherein one end of the hydraulic rod is fixed to the chassis 1 and the other end is connected to the bottom of the cable lifting assembly 4.

Specifically, the hydraulic mechanism 3 may be a jack, the bottom of which is mounted on the chassis 1, and the top of which abuts against the bottom force-bearing point of the cable lifting assembly 4, so as to lift or lower the cable lifting assembly 4.

In the embodiment, the cable lifting adopts an electric hydraulic mechanism, so that the safety is greatly improved compared with the lifting mode of the electric hoist pulley.

In one embodiment, the cable lifting assembly 4 comprises a lifting frame 41, a rotating rod 42, a first hinge 43 and a second hinge 44, wherein the lifting frame 41 is slidably connected with the frame 2, and the lifting frame 41 can slide along the frame 2 for ascending or descending; the rotating rod 42 is vertically provided at the end of the hydraulic mechanism 3 and close to the lifting frame 41; the first hinge 43 is wound at one end of the rotating rod 42 and is positioned at one side of the hydraulic mechanism 3, and the end part of the first hinge is connected with the cable fixing component 5; the second hinge 44 is wound around the other end of the rotating rod 32 and located at the other side of the hydraulic mechanism 3, and the end of the second hinge is connected to the cable fixing component 5.

Specifically, the rotating rod 42 is perpendicular to the axis of the hydraulic rod and is located at the top of the jack, a first hinge 43 and a second hinge 44 are respectively wound at two ends of the rotating rod 42, and the ends of the first hinge 43 and the second hinge 44 are both connected to the cable fixing assembly 5.

Specifically, the hydraulic stem starts, and lifting frame 41 and rotary rod 42 also follow rising this moment to drive first hinge 43 and the rolling of second hinge 44, and then connect on lifting frame 41, first hinge 43 and the fixed subassembly of cable on the second hinge 44 slowly rises thereupon, thereby realizes the promotion of cable, and its lifting height accessible control panel adjusts wantonly.

In one embodiment, the cable fixing assembly 5 includes a first fixing assembly 51 and a second fixing assembly 52, wherein the first fixing assembly 51 is disposed on the lifting frame 41 and connected to the first hinge 43; the second fixing member 52 is disposed on the lifting frame 41 and connected to the second hinge 44; the first fixing element 51 and the second fixing element 52 are disposed in parallel and spaced apart from each other by a predetermined distance.

Specifically, the first fixing component 51 and the second fixing component 52 are respectively fixed at two positions of the cable to ensure the stability of the cable during the lifting process.

In one embodiment, each of the first and second fixing assemblies 51 and 52 includes a cable fork 501, a fixing rope 502, and a cable hook 503, wherein an end of the cable fork 501 is vertically disposed on the lifting frame 41 and connected to the first hinge 43 or the second hinge 44; one end of the fixed rope 502 is connected with the cable fork 501, and the other end is connected with the cable hook 503.

Specifically, when the cable is fixed, the cable is bound by an external rope, then the bound rope is hooked by the cable hook 503, and the cable hook 503 is connected to the cable fork 501 through the fixed rope 502, so that the cable is fixed; the cable fork 501 can move vertically along the lifting frame 41, so as to drive the fixed rope 502, the cable hook 503 and the cable to move vertically, and during the cable lifting process, the fixed rope 502 is in a tight state.

In the embodiment, a cable lifting mode combining a fixed rope and a cable lifting hook is adopted, and a cable fork is connected with a lifted cable through the fixed rope and the cable lifting hook, so that the cable adopts a flexible lifting mode; when one end of the cable is lifted and the other end of the cable is not lifted, the cable is in an inclined state, the rope, the lifting hook and the flexible connection of the cable can effectively absorb lateral tension generated by the inclination of the cable, and the lifting device is ensured to be stressed stably in the lifting process and cannot be inclined to overturn.

In a specific embodiment, a plurality of fixing points 504 are further disposed on the cable fork 501, and the fixing points 504 are sequentially disposed along the axial direction of the cable fork 501.

Specifically, fixed point position 504 is used for providing the fixed position of fixed rope 502, and reserves many gears fixed point position 504 on cable fork 501, and a plurality of fixed point positions 504 can make fixed rope 502 fixed position on cable fork 501 adjust in a flexible way to can make the relative position that cable and support were placed can adjust in a flexible way, make cable hoisting device can promote different diameters, the cable of different quantity, enlarge cable hoisting device's range of application.

In a particular embodiment, the power system 6 comprises an electric machine and an accumulator, wherein the accumulator is connected to the electric machine and the electric machine is connected to the hydraulic machine 3.

Specifically, the electric mechanism may include a hydraulic oil tank, a motor, a control board, and the like.

Specifically, the storage battery adopts a battery structure supporting charging endurance, for example, the storage battery adopts a 12V/120Ah lead-acid storage battery, and theoretically, the endurance capacity of the storage battery can be improved by 1.5 tons and continuously working for 350 times with a stroke of 1.6 meters by one-time charging.

In this embodiment, adopt the battery power supply, greatly promoted flexibility and the construction scope of device in tunnel construction.

In a specific embodiment, the moving assembly 7 includes a first universal wheel 71, a second universal wheel 72, a first roller 73 and a second roller 74, wherein the first universal wheel 71 and the second universal wheel 72 are disposed at the bottom of the support plate under the power system 6, and the first roller 73 and the second roller 74 are disposed at the bottom of the chassis 1.

Specifically, the first roller 73 and the second roller 74 are arranged at the front end of the lifting device, are stressed wheels, and can bear 1.5 tons of vertical pressure; the first universal wheel 71 and the second universal wheel 72 are arranged at the rear end of the lifting device, so that the steering control of the lifting device can be realized, and the horizontal moving direction of the device can be controlled. The first universal wheel 71, the second universal wheel 72, the first roller 73 and the second roller 74 together control the horizontal movement of the lifting device.

Further, the first and second universal wheels 71, 72 have a lock function.

Referring to fig. 3, fig. 3 is a schematic view of an operation panel according to an embodiment of the present invention.

In one embodiment, the operation panel 8 includes a power switch 81, an electric door lock 82, an electric quantity display meter 83, and a lift control button 84, and the power switch 81, the electric door lock 82, the electric quantity display meter 83, and the lift control button 84 are all connected to the power system 6.

In this embodiment, adopt centralized operating panel to operating panel sets up at the back of cable hoisting device, can ensure operating personnel personal safety, satisfies the standard requirement.

In one embodiment, the cable lifting device further comprises a dragging handle 9, the dragging handle 9 is fixed on the other side of the support 2, and the dragging handle 9 is connected with the universal wheel through a supporting steel plate.

In this embodiment, the towing handle facilitates the operator in controlling the movement of the cable lifting device.

In one embodiment, the cable lifting device adopts a detachable device structure so as to meet the portable requirements of transportation and movement in tunnel construction. Specifically, chassis, battery, cable fork, connecting rod can be dismantled completely, satisfy and overhaul the transportation demand of shaft (100 cm x 93 cm) through 330kV, reduce transportation weight simultaneously by a wide margin.

The operation method of the large-section power cable lifting device in the embodiment comprises the following steps:

before use: 1 check whether the vehicle is normal before use: the hydraulic pipeline has or not oil leakage, whether each supporting wheel can normally work or not, and the phenomenon of no blockage exists, so that a vehicle with a fault is strictly forbidden to use. 2, checking whether the storage battery is electrified or not, opening an electric door lock, checking an electric energy meter on a vehicle instrument desk, and if the left end is bright, indicating that the storage battery is not electrified, charging the storage battery, and strictly forbidding the use of a battery for plugging electricity, so that the service life of the storage battery is greatly shortened, and even the storage battery is damaged; but the battery can be removed for use by plugging it back in.

In use: the electric door lock is opened, the vehicle is pulled to the position near the cable, the descending button is pressed, and the height of the cable fork is adjusted to a proper position; binding the cable with an external rope to prevent displacement and connecting the external rope with a cable hook; pressing a lifting button until the cable fork is 200-300mm away from the ground, and checking whether the fixed rope and the cable hook are firm; pressing the lifting button again, lifting the cable fork to a proper height of the cable rack, and slowly moving the cable to the accurate position of the cable rack; then, a descending button is pressed down, the cable is placed on the cable frame, the cable fork is separated from the goods, the vehicle is slowly moved, the cable fork is moved out of the cable frame, the cable fork is descended to a position about 300mm away from the ground, and then the lifting device is pulled away from the cable frame.

The embodiment provides a large-section power cable line cable lifting device, solves the practical problems of large workload, high construction cost, poor synchronism and the like in the transformer substation cable lifting process, optimizes the working efficiency of the transformer substation cable lifting construction process, shortens the construction period and finally realizes the full automation of the power cable line cable lifting process. The large-section power cable line cable lifting equipment can be widely applied to a power grid, the working efficiency of the power grid can be effectively improved, the labor cost is reduced, the reliability of acceptance check is guaranteed, and the proposed equipment has the characteristics of stable operation, simplicity in operation, convenience in maintenance, no noise, no pollution and the like, and has good popularization and application prospects. In the aspect of safety benefit, the cable lifting device safely and quickly lifts a fault cable to a proper position in cable maintenance operation, electric shock risks in the process of using a crane are avoided, and personal safety, power grid safety and equipment safety in operation are guaranteed. In the aspect of economic benefit, the manufacturing cost of the device is less than the development cost of the device, and the maintenance cost can be ignored; 380 working hours can be saved by adopting the device to lay the 1kM cable, so that the construction cost is greatly reduced, and the economic benefit is obvious. In the aspect of social benefit, the manpower and material resources required by the operation of the company are saved, the company index is indirectly improved, the power failure time is reduced, a good enterprise image of the electric power industry of the people of the company is established, the social responsibility is fulfilled, and the social image of the brand of the company is improved.

To sum up, the cable hoisting device of this embodiment has the characteristics such as operate steadily, convenient operation is simple, easy maintenance, noiselessness, pollution-free, the work mode that gives up is brand-new is provided for relevant work unit, obviously alleviate the human cost, the factor of safety of work has been improved, the duty cycle time has been shortened, the transformer substation cable hoisting in-process work load is big, easily make mistakes, construction cost is high, actual problems such as synchronism is poor have been solved, the work efficiency of transformer substation cable hoisting work process has been optimized, construction cycle has been shortened, finally, realize power cable line cable hoisting process full automatization, have positive safety benefits, economic benefits and social.

The foregoing is a more detailed description of the present invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. A large section power cable hoist, comprising: a chassis (1), a bracket (2), a hydraulic mechanism (3), a cable lifting component (4), a cable fixing component (5), a power system (6), a moving component (7) and an operation panel (8), wherein,

the support (2) is vertically fixed on the chassis (1), and the chassis (1) is positioned on one side of the support (2); the hydraulic mechanism (3) is fixed on the chassis (1); the cable lifting assembly (4) is connected with the support (2) in a sliding mode, the hydraulic mechanism (3) is arranged at the bottom of the cable lifting assembly (4) and connected with the cable lifting assembly (4), and the cable lifting assembly (4) can ascend or descend along the support (2) under the driving of the hydraulic mechanism (3); the cable fixing component (5) is arranged on one side of the bracket (2) and is connected with the cable lifting component (4) so as to move along with the movement of the cable lifting component (4); the power system (6) is arranged on the other side of the bracket (2) and is electrically connected with the hydraulic mechanism (3) so as to provide power for the hydraulic mechanism (3); the moving assembly (7) is arranged at the bottom of the chassis (1) to horizontally move the cable lifting device; the operation panel (8) is arranged on the other side of the support (2) and is electrically connected with the power system (6).

2. A large section power cable hoist according to claim 1, characterized in that the hydraulic mechanism (3) comprises a hydraulic rod, wherein one end of the hydraulic rod is fixed to the chassis (1) and the other end is fixed to the cable hoist assembly (4).

3. Large section power cable hoist according to claim 1, characterized in that the cable hoist assembly (4) comprises a hoist frame (41), a rotating lever (42), a first hinge (43) and a second hinge (44), wherein,

the lifting frame (41) is connected with the bracket (2) in a sliding way, and the lifting frame (41) can slide along the bracket (2) to ascend or descend; the rotating rod (42) is vertically arranged at the end part of the hydraulic mechanism (3) and is close to the lifting frame (41); the first hinge (43) is wound at one end of the rotating rod (42) and is positioned at one side of the hydraulic mechanism (3), and the end part of the first hinge is connected with the cable fixing component (5); the second hinge (44) is wound at the other end of the rotating rod (42) and is positioned at the other side of the hydraulic mechanism (3), and the end part of the second hinge is connected with the cable fixing component (5).

4. A large section power cable hoist according to claim 3, characterized in that the cable securing assembly (5) comprises a first securing assembly (51) and a second securing assembly (52), wherein,

the first fixing component (51) is arranged on the lifting frame (41) and is connected with the first hinge (43); the second fixing component (52) is arranged on the lifting frame (41) and is connected with the second hinge (44); the first fixing component (51) and the second fixing component (52) are arranged in parallel and are spaced at a certain distance.

5. A large section power cable hoisting device according to claim 4, wherein the first fixing assembly (51) and the second fixing assembly (52) each comprise a cable fork (501), a fixing rope (502) and a cable hook (503), wherein,

the end part of the cable fork (501) is vertically arranged on the lifting frame (41) and is connected with the first hinge (43) or the second hinge (44);

one end of the fixed rope (502) is connected with the cable fork (501), and the other end of the fixed rope is connected with the cable hook (503).

6. A large-section power cable lifting device according to claim 5, characterized in that a plurality of fixing points (504) are further arranged on the cable fork (501), and the fixing points (504) are arranged in sequence along the axial direction of the cable fork (501).

7. A large section power cable hoist according to claim 1, characterized in that the power system (6) comprises an electric machine and a battery, wherein the battery is connected to the electric machine and the electric machine is connected to the hydraulic machine (3).

8. A large section power cable hoisting device according to claim 1, characterized in that the moving assembly (7) comprises a first universal wheel (71), a second universal wheel (72), a first roller (73) and a second roller (74), wherein,

the first universal wheel (71) and the second universal wheel (72) are arranged at the bottom of a support plate below the power system (6), and the first roller (73) and the second roller (74) are arranged at the bottom of the chassis (1).

9. A large section power cable hoisting device according to claim 1, characterized in that the operating panel (8) comprises a power switch (81), a switch lock (82), a power display meter (83) and a lift control button (84), the power switch (81), the switch lock (82), the power display meter (83) and the lift control button (84) being connected to the power system (6).

10. A large section power cable hoist according to claim 1, characterized by further comprising a towing handle (9), the towing handle (9) being fixed to the other side of the bracket (2).

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