CN201332231Y - Power line casting and reeling device for overhead line - Google Patents

Abstract

The utility model provides a power take-up and pay-off equipment for overhead lines, in particular, the equipment includes: a bracket; a main shaft, rotatably supported in the bracket; a reel, detachably sleeved on the main shaft; a transmission device, It is arranged on the bracket and connected to the main shaft; the motor is arranged on the bracket and connected to the transmission device; and the speed regulation control device is arranged on the bracket and electrically connected to the motor. The power take-up and pay-off equipment for overhead lines of the utility model adopts power operation, which can save a lot of manpower. Eliminate the link of rewinding the old wires manually at the end. In addition, using the power take-up and release equipment for overhead lines according to the utility model to tighten the wires can reduce the wire margin when erecting the wires.

Description

Power take-up and pay-off equipment for overhead lines

technical field

The utility model relates to the field of electric power, and in particular to power take-up and release equipment for overhead lines.

Background technique

In electric power engineering, the task of laying lines is arduous. It is often necessary to transform old overhead lines that do not meet the standards into new overhead lines, and often to build new overhead lines. In the previous reconstruction process of overhead lines, manual operation was used when receiving and releasing the lines, and the staff ran around at both ends of the lines, which not only wasted time but also affected work efficiency. safety hazard.

For example, for the traditional line tensioning work of 10kv overhead lines, the use of manual or vehicle pulling lines is limited by many factors such as the construction environment, terrain, and weather. The staff have to go up the pole to cross the line and go to one end of the line to tighten the line. Busy running is very tiring, and more than a dozen workers are required to pull the line, and finally need to manually recycle the old wire, which is low in work efficiency. Therefore, a kind of power take-up and pay-off equipment is needed to complete the above-mentioned take-up and pay-off and tightening tasks.

Utility model content

The utility model is devoted to overcoming the above-mentioned defective of prior art just and makes. The purpose of the utility model is to provide a power overhead line retracting and releasing equipment, so as to reduce a large amount of human labor required in the process of retracting and releasing the cables, improve the work efficiency and safety of the retracting and releasing cables, and simplify the operation process of the retracting and releasing cables.

In order to solve the above technical problems, the utility model provides a power take-up and pay-off equipment for overhead lines, in particular, the equipment includes: a bracket; a main shaft, which is pivotally supported in the bracket; on the main shaft; the transmission device is arranged on the bracket and connected to the main shaft; the motor is arranged on the bracket and connected to the transmission device; and the speed control device is arranged on the bracket and electrically connected to the motor.

Preferably, according to the power take-up and pay-off equipment for overhead lines of the present utility model, height-adjustable main shaft supporting parts are arranged on both sides of the bracket, at least one pair of rolling bearings are arranged in the main shaft supporting part, and the main shaft is supported on at least one pair of between rolling bearings.

Preferably, according to the power take-up and pay-off equipment for overhead lines of the present utility model, the main shaft supporting part has a lifting part, fixed pulleys bypassed by steel cables are respectively installed at the tops of both sides of the support, and one end of the steel cables can be connected to Yu Tila Department.

Preferably, according to the power take-up and pay-off equipment for overhead lines of the present utility model, the transmission device includes: a worm gear reducer, arranged on the support and adjacent to the motor; two first pulleys, respectively installed on the motor and the worm reducer On the machine, and the two first pulleys are at the same level; the first belt, around the two first pulleys; the second pulley, installed on the side of the worm gear reducer; the third pulley, installed on the side of the reel , the second pulley and the third pulley are in the same vertical plane; and a second belt wraps around the second pulley and the third pulley.

Preferably, in the power take-up and take-off equipment for overhead lines according to the present invention, the wire reel includes at least one reel portion for winding the cable.

Preferably, the power take-up and pay-off equipment for overhead lines according to the present invention further includes: wheels installed on both sides of the support and supporting the support; and a traction frame fixed to the front end of the support.

Preferably, according to the power take-up and pay-off equipment for overhead lines of the present invention, the traction frame includes two side beams and a beam connected between the side beams, and the front end of the traction frame has a traction ring.

Preferably, the overhead line power take-up and pay-off equipment according to the utility model further includes a corner pay-off pulley arranged on the pole top, and the corner pay-off pulley is supported by a wedge-shaped support.

Preferably, the power take-up and take-off equipment for overhead lines according to the present utility model is a generator, and the generator is electrically connected to the motor.

Preferably, according to the power take-up and take-off equipment for overhead lines of the present invention, the wire reel includes three reel parts for winding cables.

The utility model has the following technical effects:

First of all, the power take-up and take-off equipment for overhead lines according to the utility model realizes the mechanized take-up and take-off operation, which can significantly reduce the manpower consumption in the take-up and take-off process;

Secondly, the power take-up and pay-off equipment for overhead lines according to the utility model adopts the electric motor to drive the reel to carry out the take-up and take-off operation, and the take-up and take-off speed is 3 times higher than that of manual pulling, and the speed control device ensures that the take-off speed is uniform , controllable, and at the same time, new wires can be arranged while collecting old wires, and the old wires can be automatically wound on the reel, eliminating the need to manually reel the old wires, and the overall efficiency is 3-4 times higher than the traditional work .

In addition, the power take-up and pay-off equipment for overhead lines according to the utility model is driven by a stepless variable speed motor, the pay-off is stable, the pay-off speed is 0-50 m/min stepless speed regulation, and the tension of the wire is controllable. The electric motor will stop automatically if the set value is exceeded, so the safety performance is obviously improved compared with the vehicle pulling wire method.

In a word, the use of the overhead line power take-up and release equipment according to the utility model can improve the safety performance of on-site workers, reduce the labor intensity of the workers, save labor, save new wires, fully recycle old wires, and increase economic benefits for enterprises.

It should be understood that both the above general description and the following detailed description are enumerative and explanatory, and the purpose is to provide further explanation of the claimed utility model.

Description of drawings

The accompanying drawings constitute a part of this specification and are used to help further understand the utility model. In the attached picture:

Fig. 1 is a schematic top view showing a power take-up and pay-off equipment for overhead lines according to a preferred embodiment of the present invention;

Fig. 2 is a schematic side view showing a power take-up and take-off equipment for overhead lines according to a preferred embodiment of the present invention;

Fig. 3 is a schematic top view showing a power take-up and take-off equipment for overhead lines according to another preferred embodiment of the present invention;

Fig. 4 is a schematic side view showing the main shaft supporting part of the overhead line power take-up and take-off equipment according to another preferred embodiment of the present invention;

Fig. 5 is a schematic diagram showing a corner pay-off pulley according to the utility model; and

Fig. 6 is a schematic view showing the use state of the corner pay-off pulley according to the present invention.

Detailed ways

The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings. It should be noted that the following only describes the features of the utility model that are different from the prior art, and the technical features that can be found in the prior art will not be repeated here.

Referring first to FIG. 1 , it shows a schematic top view of a power take-up and take-off equipment for overhead lines according to a preferred embodiment of the present invention. As can be seen from Figure 1, the power take-up and pay-off equipment for overhead lines according to this embodiment of the utility model includes: a bracket 9; a main shaft 10, which is pivotally arranged in the bracket 9; a detachable reel 8, Sleeved on the main shaft 10; the transmission device includes a worm gear reducer 2 arranged on the bracket and adjacent to the motor 1, two first gears installed on the motor 1 and the worm gear reducer 2 respectively and at the same level The pulley 3, the first belt 6 surrounding the two first pulleys 3, the second pulley 4 installed on the side of the worm reducer 2, installed on the side of the reel 8 and located in the same vertical plane as the second pulley 4 The third pulley 5 and the second belt 7 surrounding the second pulley 4 and the third pulley 5; the motor 1 drives the main shaft 10 to rotate through the transmission device; the speed control device is specifically an over-current automatic stop stepless speed change controller 14, the controller 14 controls the rotating speed of the motor 1; and the vehicle, which has wheels 12 installed on both sides of the support and supports the support and a traction frame 11 fixed to the front end of the support, specifically, the traction frame is an isosceles triangle, It consists of two side beams 11a, 11b and a cross beam 11c connecting them, with a traction ring 11d at the intersection of the two side beams; . It can be understood that the setting of the vehicle is used to transport the overhead line power take-up and pay-off equipment to a suitable location, so as to reduce the manpower consumption caused by carrying the equipment.

Fig. 2 is a schematic side view showing the power take-up and take-off equipment for overhead lines according to a preferred embodiment of the present invention. Referring to Fig. 1 and Fig. 2 at the same time, the working principle and specific implementation method of the power take-up and pay-off equipment for overhead lines according to this preferred embodiment of the present utility model can be more clearly explained. Wherein, a stepless motor 1 (power of 3 kilowatts) is driven by a three-phase gasoline generator (not shown) (power of 5.5 kilowatts), and the output power of the motor 1 is delivered to the worm gear through the first pulley 3 and the first belt 6. The speed changer 2 is then delivered to the main shaft 10 through the second pulley 4, the third pulley 5 and the second belt 7 to drive the main shaft 10 to rotate so as to drive the reel 8 to rotate, and then the winding and unwinding and tightening work can be completed.

The basic process of replacing old and new lines by adopting the power take-up and pay-off equipment for overhead lines according to the utility model is as follows. During operation, firmly connect the new lead with the old lead at the pay-off end of the line, and connect the old lead with the power take-up and pay-off device at the take-up end of the line (that is, wind the old lead on the reel 8) , after starting the equipment, the new wire can be laid on the line while the old wire is recycled. According to the actual working conditions (such as the sag of the wire, the distance of the line), calculate the wire allowance for the tightened wire, and then use the wire tightener to clamp the wire firmly at the pay-off end, and start to take up the wire at the take-up end. When the take-up end reaches the specified When the level is reached, then use a wire tensioner to clamp the wire firmly at the wire take-up end, and then adjust the wire sag, and then the wire changing work is completed. In addition, the tension of the wire is monitored by the controller 14, and when the tension of the wire exceeds 60% of the compressive tension of the utility pole, the wire take-up and pay-off device stops working.

Referring to Fig. 3 below, it shows a schematic top view of a power take-up and take-off equipment for overhead lines according to another preferred embodiment of the present invention. The embodiment shown in Fig. 3 is substantially the same as the constituent parts of the embodiment shown in Fig. 1, and their difference is that: the reel 8 includes 3 reel parts 8a, 8b, 8c for winding cables , In addition, a 12 kW generator is used instead of a 5.5 kW generator to provide power, and a 7.5 kW motor is used instead of a 3 kW motor to provide power, which increases the pulling force of the wire and can pull 3 wires at the same time. Connect the 3 new wires to the old wires firmly at the pay-off end of the line, connect the old wires to the take-up and pay-off equipment at the take-up end of the line, turn the reel, recover the old wires and lay the new wires at the same time on the line. Of course, it can be understood that the cable reel 8 can be configured to have space for accommodating several coils of cables, and several wires can be drawn simultaneously by selecting a suitable power generator and motor.

The power take-up and release equipment for overhead lines according to the utility model can also be applied to the construction of new lines, for example, in the process of erecting lines of low-voltage lines in rural areas (telephone lines, street lamp lines, cable TV optical fiber lines), the operation process is as follows stated. Firstly, lay three φ6mm steel wire ropes on the power take-up and pay-off equipment to the pay-off end of the line at the same time, and put the steel wire ropes in the corresponding pulleys on the straight rod; It is necessary to extend and release the wires to be firmly connected; finally start the power retracting and releasing equipment to reclaim 3 steel wire ropes, then the 3 wire ropes can lay the wires on the predetermined electric pole. The tightening method is the same as the method of replacing old wires with new wires. This method of erecting new wires can not only save manpower, improve work efficiency, but also avoid the phenomenon of 3 wires being hung up (the phenomenon of 3 wires being hung up is very serious when adopting the traditional manual method of setting up wires). In addition, retracting and deploying 3 conductors at the same time reduces the number of times of crossing obstacles, that is, when there are 5 obstacles in the whole line, the number of times of crossing obstacles by placing 3 φ6mm steel wire ropes at the same time is 5 times, while the number of times of crossing obstacles with traditional construction methods is 15 times, which significantly saves work time.

Referring now to FIG. 4 , it is a schematic side view showing the main shaft supporting part of the overhead line power take-up and take-off equipment according to another preferred embodiment of the present invention. In this embodiment, both sides of the bracket 9 are provided with height-adjustable main shaft supporting parts 13, and two pairs of rolling bearings 16 (only one pair is shown in Fig. 4 ) arranged in parallel are arranged in the main shaft supporting parts 13 on each side, The main shaft 10 is supported between two pairs of rolling bearings 16, and each pair of bearings 16 is positioned in a splint 20. Two vertical columns 23, 24 on each side of the bracket 9 have multiple pairs of parallel positioning holes 21. When the height of the main shaft 10 needs to be adjusted, the main shaft supporting part 13 is lifted and a positioning pin (not shown) is inserted in the positioning hole 21 at the same time, and the main shaft supporting part 13 is placed on the positioning pin, thereby limiting the level of the main shaft 10. high. Specifically, the main shaft supporting part 13 has a lifting part 13a, fixed pulleys 15 bypassed by steel cables 17 are respectively installed at the tops on both sides of the bracket 9, and one end of the steel cables 17 can be connected to the lifting part 13a, so that The other end of the cable 17 is pulled to adjust the height of the spindle supporting member 13 . When the construction site is uneven, the main shaft 10 will move to the side with a lower height, thereby causing the reel on the main shaft 10 to scrape against the support 9. At this time, the height of the main shaft supporting parts 13 on both sides of the support 9 must be adjusted. in order to resolve this issue.

Referring to Fig. 5 and Fig. 6, it shows a schematic view of the structure and application of the corner pay-off pulley according to the present invention. Referring to Fig. 5, compared with the usual pulley, the lower part of the corner pay-off pulley 18 is provided with a wedge support 19 which makes the pulley tilt. The specific application of the corner pay-off pulley 18 and the technical problems it solves will be introduced in detail below.

The overhead line is composed of multiple tension sections, and each tension section is composed of 10-20 base poles. Due to the constraints of terrain and buildings, the wire line is not a straight line, and each tension section may have 1-2 corners with an angle not greater than 45 degrees. This kind of corner pole not greater than 45 degrees is called a hug stand in engineering pole. During the construction of overhead lines, especially when old lines are used to drive new lines, the wires must be moved on pulleys. When encountering a pole-type pole, the wires are often stuck due to the corner On the pulley, and when the wire moves, it will rub against the side column of the pulley, which will increase the wire resistance and slow down the wire speed, and easily damage the wire. The purpose of adopting the corner pay-off pulley 18 according to the utility model is to form an approximately 30-degree angle of rotation between the pulley and the horizontal direction (referring to Fig. The side posts of the pulley are in contact, making it easy for the wire to pass through the pulley.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. an overhead transmission line power retractable cable equipment is characterized in that, comprising:

Support (9);

Main shaft (10) is supported in the described support pivotly;

Winding roll (8) removably is sheathed on the described main shaft;

Transmission device is arranged on the described support and is connected in described main shaft;

Motor (1) is arranged on the described support and is connected in described transmission device; And

Speed-regulating control device (14) is arranged on the described support and is electrically connected on described motor.

2. overhead transmission line power retractable cable equipment according to claim 1, it is characterized in that, described support both sides are provided with adjustable for height main shaft supporting parts (13), be provided with at least one pair of rolling bearing (16) in the described main shaft supporting parts, described main shaft support is between described at least one pair of rolling bearing.

3. overhead transmission line power retractable cable equipment according to claim 2, it is characterized in that, described main shaft supporting parts have pulling part (13a), and the place, top of described support both sides is equipped with the fixed pulley of being walked around by cable wire (17) (15) separately, and an end of described cable wire is connected in described pulling part.

4. overhead transmission line power retractable cable equipment according to claim 1 is characterized in that described transmission device comprises:

Turbine and worm reductor (2) is arranged on the described support and contiguous described motor;

Two first belt pulleys (3), be installed in respectively on the described motor and described turbine and worm reductor on, and described two first belt pulleys are in same level height;

First belt (6) is around described two first belt pulleys;

Second belt pulley (4) is installed on the sidepiece of described turbine and worm reductor;

The 3rd belt pulley (5) is installed on the sidepiece of described winding roll, and described second belt pulley and described the 3rd belt pulley are arranged in same vertical plane; And

Second belt (7) is around described second belt pulley and described the 3rd belt pulley.

5. overhead transmission line power retractable cable equipment according to claim 1 is characterized in that, described winding roll comprises the spool portion (8a) of at least one cable that is used to reel.

6. overhead transmission line power retractable cable equipment according to claim 1 is characterized in that, described overhead transmission line power retractable cable equipment also comprises:

Wheel (12) is installed in the both sides of described support and supports described support; And

Hitch frame (11) is fixed to the front end of described support.

7. overhead transmission line power retractable cable equipment according to claim 6, it is characterized in that, described hitch frame comprises two curb girders (11a, 11b) and is connected crossbeam (11c) between the described curb girder that wherein, the front end of described hitch frame has bail (11d).

8. overhead transmission line power retractable cable equipment according to claim 1, it is characterized in that, described overhead transmission line power retractable cable equipment also comprises the corner pulley block (18) that is arranged on the electric pole capital, and described corner pulley block is supported by wedge shape strutting piece (19).

9. overhead transmission line power retractable cable equipment according to claim 1 is characterized in that, described overhead transmission line power retractable cable equipment also comprises generator, and described generator is electrically connected to described motor.

10. overhead transmission line power retractable cable equipment according to claim 5 is characterized in that, described winding roll comprises the spool portion of 3 cables that are used to reel.

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