CN113998528B - Paying-off device for power transmission line - Google Patents

Abstract

The invention provides a pay-off device for power transmission lines, which belongs to the technical field of power cables, and includes a mobile base, a pay-off mechanism and a transmission mechanism, and a control mechanism for controlling the pay-off mechanism and the transmission mechanism; the pay-off mechanism includes a The pay-off frame on the seat, the pay-off wheel wound with cables, and the first motor that drives the pay-off wheel to rotate; the transmission mechanism includes a support frame arranged on the mobile base, and a hanging ring arranged on the support frame; the control mechanism It includes a first rotational speed sensor and a first electronic counter arranged on the pay-off wheel, and a controller for controlling the first rotational speed sensor and the first electronic counter; the pay-off wheel is arranged on the pay-off frame through a rotating shaft. The invention is easy to use and install, and the position of the support column can be adjusted according to the size of the pay-off wheel. The operation is simple. The motor drives the pay-off wheel to pay off the wire, without manual rotation. At the same time, the speed and length of the pay-off can be detected, which reduces the working time. Reduce labor intensity, save cost, save time and effort.

Description

A wire release device for transmission lines

technical field

The invention relates to the technical field of power cables, in particular to a wire-releasing device for power transmission lines.

Background technique

The transmission line is realized by using a transformer to boost the electric energy generated by the generator, and then connecting it to the transmission line through control equipment such as a circuit breaker. In the structural form, the transmission line is divided into overhead transmission lines and cable lines. An extremely important part of construction. At present, when erecting or laying cables, the cables are generally paid out along the coiling direction of the coils. The traditional pay-off device for transmission line construction has a simple structure and a single function. The worker manually pays off the wire. At least one person pulls the cable head and at least one other person rotates the cable reel. The length of the wire is measured, so that it is not known how much length of the cable is actually released. After the end of the release, the extra cable needs to be reeled; and the speed of the person who pulls the wire and the person who releases the wire is not easy to keep consistent, which is time-consuming strenuous.

The patent document whose publication number is CN112623858A discloses a wire pay-off device for transmission lines, which includes a base, a moving wheel, a wire pay-off reel, two fixed lifting assemblies, two plunger rods, an adjustment assembly and a rotation assembly. The four corners of the bottom of the base are equipped with moving wheels; the pay-off reel is placed on the top of the base, and the two ends inside the central hole of the pay-off reel are distributed with a plurality of blocks along the circumferential direction; two fixed lifting components The symmetrical sliding connection is connected to the top of the base and both sides of the pay-off reel, and the distance between the two fixed lifting components is adjustable. The pay-off device adjusts the distance between the two fixed lifting components through the adjustment component, so that the insertion rod is inserted into the central hollow of the pay-off reel, so that the clamping block cooperates with the card slot to fix the pay-off reel, and then through the fixed lifting component The pay-off reel is raised to perform the pay-off operation, but the pay-off device cannot monitor the length and speed of the pay-off.

The patent with the publication number CN207090649U discloses a power transmission line construction pay-off device, which belongs to the technical field of power transmission line construction, including a support mechanism with a base and a support frame, a wire release mechanism arranged on the support frame, and used for detecting speed and speed. The detection mechanism of the number of turns and the drive mechanism arranged on the base; the pay-off mechanism includes a pay-off wheel arranged on the support frame through the wheel shaft, a pay-off frame is arranged at both ends of the support frame, and a pay-off tube is arranged on the pay-off frame, and the The wire entry end of the line pipe is fixed with a pulley through the pulley frame; the detection mechanism includes a digital counter and a first speed sensor arranged on the wheel shaft, and a second speed sensor is set on the pulley, and both the first speed sensor and the second speed sensor are connected to the controller. In series, the controller is connected to the alarm. This pay-off device can measure the length of the wire that is released, control the speed of pay-off, and make the speed of pay-off and pull wire consistent, but when the pay-off mechanism is placed on the pay-off frame, it is inconvenient to install.

Contents of the invention

In view of this, the present invention provides a wire pay-off device for power transmission lines.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A pay-off device for a power transmission line, comprising a mobile base, a pay-off mechanism and a transmission mechanism arranged on the mobile base, and a control mechanism for controlling the pay-off mechanism and the transmission mechanism;

The pay-off mechanism includes a pay-off frame arranged on the mobile base, a pay-off wheel wound with a cable, and a first motor driving the pay-off wheel to rotate;

The transmission mechanism includes a support frame set on the mobile base, and a hanging ring set on the support frame;

The control mechanism includes a first rotational speed sensor and a first electronic counter arranged on the pay-off reel, and a controller for controlling the first rotational speed sensor and the first electronic counter.

Further, the pay-off wheel is arranged on the pay-off frame through a rotating shaft.

Further, the mobile base includes a bottom plate and running wheels arranged at the lower part of the bottom plate, and one end of the bottom plate is upwardly provided with a pull rod.

Further, the pay-off frame includes a chute set on the bottom plate, a support column set in the chute, and a baffle plate set on the support column, and the rotating shaft and the baffle plate pass through Bearing connection.

Further, the lower end of the supporting column is provided with a first through hole, and the two sides of the chute are provided with a plurality of second through holes.

Further, the width of the chute is larger than the width of the support column, and the first through hole and the second through hole are fixed by bolts to fix the support column in the chute.

Further, two support columns are provided to respectively support the two ends of the pay-off reel, each of the support columns is fixed with the baffle plate, and the rotating shaft passes through the baffle plate.

Further, the support frame is located on one side of the pay-off frame, the support frame includes a support rod arranged on the bottom plate, the hanging ring is arranged at the end of the support rod, and the cable Pass through the hanging ring after being released by the pay-off mechanism.

Further, the output shaft of the first motor is connected to one end of the rotating shaft through a key, and the other end of the rotating shaft is provided with a handle.

Further, the first motor is supported by a support platform arranged on the bottom plate.

With the development of the power industry and the increase in the load demand of the power grid, my country is vigorously developing UHV and long-distance power transmission technology. Traditional transmission lines generally use pay-off wheels to complete the pay-off operation. This pay-off wheel is a relatively common The hand-operated pay-off equipment, usually when paying off, needs to use the installation frame to set up the pay-off wheel or the pay-off reel for pay-off, so the operation is simple and convenient, but the existing pay-off reel or pay-off reel It is troublesome to fix and install, and the operation efficiency is not high. For this reason, technicians in the field of electric power usually conduct research in order to improve the efficiency of paying out wires. For example, the patent document whose publication number is CN105293162A discloses a power transmission line iron tower pile wire releasing device and its construction method, including a base plate, the base plate is provided with a dovetail groove, and the support plate is inserted into the dovetail groove through the bottom connector and installed in the dovetail groove. On the bottom plate, it is characterized in that: a pin clip is installed on the support plate, and a tripod composed of connecting rod 1, connecting rod 2 and connecting rod 3 is installed on the support plate, wherein: the connection between connecting rod 1 and connecting rod 2 is installed with The shaft bracket, the bottom of the connecting rod 2 is provided with the pin 4 penetrating into the support plate; the connecting rod 1 is connected with the connecting rod 3 through the pin 2, and the connecting rod 3 is fixed in the pin clip through the adjusting pin; the device is fixed on the transport vehicle Above, it is driven by the vehicle to advance and pay off, and at the same time, the reel is easy to disassemble without consuming too much manpower. The patent with the notification number CN102064493B discloses a method for setting out and erecting transmission lines by unmanned helicopters. The unmanned helicopter is used to carry the aramid rope to take off, and put it into the designated tower position, and then use manual direct traction or small tractor traction. The method is to use the aramid rope to pull the Dyneema rope, and then use the Dyneema rope to pull the leading rope; when the leading rope is pulled to the small traction station, the two sides are connected, and the large traction rope can be pulled in the air. Complete the wiring work. The operation of drones is simple and flexible, and the construction efficiency of overhead transmission line conductors is high, the work is stable, and the safety is good. It does not need to cut down trees and other construction channels, does not disturb the people, and does not destroy natural resources such as local geomantic omen. However, in the actual operation of the payout, the length and speed of the payout are not considered. When they do not match the traction speed, many problems such as large traction force or cable entanglement will occur, which will affect the payout construction efficiency. In the prior art, during the pay-off process, the cable is usually straightened by traction, so as to increase the traction force.

Compared with the prior art, the beneficial effects of the present invention are as follows:

The invention includes a mobile base, a wire-feeding mechanism, a transmission mechanism and a control mechanism. The mobile base includes a bottom plate and walking wheels. One end of the bottom plate is provided with a pull bar upwards for easy pushing and pulling. The pay-off mechanism includes a pay-off frame, a pay-off wheel and a first motor, and a rotating shaft is arranged in the middle of the pay-off wheel, which is arranged on the pay-off frame, and is driven by the first motor to rotate the shaft, and then pays off. The transmission mechanism includes a support frame and a hanging ring. After the cable is released from the pay-off frame, it passes through the hanging ring for easy traction. The control mechanism includes a first rotational speed sensor, a first electronic counter and a controller. By controlling the rotational speed and the number of turns of the pay-off wheel, it is convenient to calculate the length of the pay-off.

The pay-off frame includes a chute, a support column and a baffle plate. A plurality of second through holes are arranged on both sides of the chute, and are fixed with the first through holes at the bottom of the support column by bolts. Two support plates and baffle plates are provided. When in use, first fix a support column on the chute with bolts, press both ends of the rotating shaft on the bearing and the bearing seat, fix the bearing seat at one end on the baffle plate of a support column, and then adjust the second support The position of the column is also fixed on the chute by bolts, and finally the bearing seat at the other end of the rotating shaft is fixed on the baffle plate of the second support column to complete the connection between the pay-off frame and the pay-off wheel. The structure is convenient to connect, and the position of the support column can be adjusted according to the size of the pay-off wheel, which is flexible and convenient.

The first motor is arranged on the supporting platform, and one end of the output shaft and the rotating shaft is connected by a key, and the other end of the rotating shaft is provided with a handle.

The invention is easy to use and install, and the position of the support column can be adjusted according to the size of the pay-off wheel. The operation is simple. The motor drives the pay-off wheel to pay off the wire, without manual rotation. At the same time, the speed and length of the pay-off can be detected, which reduces the working time. Reduce labor intensity, save cost, save time and effort.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural diagram of a wire pay-off device according to Embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of the transmission mechanism of Embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of the transmission mechanism of Embodiment 3 of the present invention.

Fig. 4 is a schematic structural diagram of a second transmission module according to Embodiment 3 of the present invention.

Fig. 5 is a schematic structural diagram of the first transmission module of the present invention.

Fig. 6 is a schematic structural view of the first driven wheel in Embodiment 3 of the present invention.

Fig. 7 is a structural schematic diagram of the lifting platform according to Embodiment 3 of the present invention.

The meaning of each reference mark is as follows:

1: Walking wheel, 2: Bottom plate, 3: Chute, 4: Second through hole, 5: Support column, 6: Crank handle, 7: Baffle plate, 8: Rotating shaft, 9: Pay-off wheel, 10: Cable , 11: The first electronic counter, 12: The first speed sensor, 13: The first motor, 14: Support platform, 15: Controller, 16: Pull rod, 17: Hanging ring, 18: Support rod, 19: The first active Wheel, 20: the first belt, 21: the first driven wheel, 22: the second driving wheel, 23: the second belt, 24: the second driven wheel, 25: the second housing, 26: the third motor, 27: Workbench, 28: hydraulic cylinder, 29: scissor arm frame, 30: base.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to Figures 1-7 of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

Example 1

As shown in Figure 1-2, this embodiment provides a wire pay-off device for power transmission lines, including a mobile base, a wire release mechanism and a transmission mechanism arranged on the mobile base, and a wire release mechanism and a transmission mechanism that control the wire release mechanism and The control mechanism of the transmission mechanism; the pay-off mechanism includes a pay-off rack arranged on the mobile base, a pay-off wheel 9 wound with a cable 10, and a first motor 13 that drives the pay-off wheel 9 to rotate; The transmission mechanism includes a support frame arranged on the mobile base, a hanging ring 17 arranged on the support frame; the control mechanism includes a first rotational speed sensor 12 and a The first electronic counter 11 and the controller 15 controlling the first rotational speed sensor 12 and the first electronic counter 11 adopt wireless connection, and by controlling the pay-off wheel speed and the number of turns, it is convenient to calculate the length of the pay-off; The pay-off wheel 9 is arranged on the pay-off frame through a rotating shaft 8 .

The mobile base includes a bottom plate 2 and a traveling wheel 1 arranged at the bottom of the bottom plate 2 .

The pay-off rack includes a chute 3 arranged on the bottom plate 2, a support column 5 arranged in the chute 3, a baffle 7 arranged on the support column 5, and the rotating shaft 8 is connected to the baffle. The plates 7 are connected by bearings, and two support columns 5 are provided to support the two ends of the pay-off wheel 9 respectively.

The lower end of the support column 5 is provided with a first through hole, and the two sides of the chute 3 are provided with a plurality of second through holes 4, the width of the chute 3 is greater than the width of the support column 5, and the first The first through hole and the second through hole 4 are fixed by bolts, and the support column 5 is fixed in the slide groove 3 .

The support frame is positioned at one side of the pay-off frame, the support frame includes a support rod 18 arranged on the base plate 2, the hanging ring 17 is arranged at the end of the support rod 18, and the wire The cable 10 passes through the hanging ring 17 after being released by the pay-off mechanism, and the cable 10 passes through the hanging ring 17 after being released from the pay-off frame, so as to facilitate traction.

When in use, first fix a support column on the chute with bolts, press both ends of the rotating shaft on the bearing and the bearing seat, fix the bearing seat at one end on the baffle plate of a support column, and then adjust the second support The position of the column is also fixed on the chute by bolts, and finally the bearing seat at the other end of the rotating shaft is fixed on the baffle plate of the second support column to complete the connection between the pay-off frame and the pay-off wheel. The structure is convenient to connect, and the position of the support column can be adjusted according to the size of the pay-off wheel, which is flexible and convenient.

Example 2

As shown in Figure 1-2, this embodiment provides a wire-releasing device for transmission lines, which is further optimized on the basis of Embodiment 1:

One end of the base plate 2 is upwardly provided with a pull rod 16, and the pull rod 16 is provided with a cross bar for convenience and traction.

The output shaft of the first motor 13 is connected with one end of the rotating shaft 8 by a key, and the other end of the rotating shaft 8 is provided with a handle 6. When the length of the wire to be released is short, the handle can be rotated, and the wire is released immediately. Can.

The first motor 13 is supported by a supporting platform 14 arranged on the bottom plate 2 .

Example 3

As shown in Figures 1-7, this embodiment provides a wire releasing device for transmission lines, which is further optimized on the basis of Embodiment 2:

The transmission mechanism also includes a first transmission module and a second transmission module arranged on one side of the support frame; both the first transmission module and the second transmission module are driven by belts, and the cables are clamped between two belts In between, the cables are squeezed and straightened to improve the traction efficiency and speed up the construction progress.

The first transmission module includes a first driving shaft, a first driven shaft, a first driving wheel 19, a first driven wheel 21, and a first belt connecting the first driving wheel 19 and the first driven wheel 21 20. The second motor that drives the first driving shaft to rotate; the first driving wheel 19 is connected to the first driving shaft, and the first driven wheel 21 is connected to the first driven shaft; the first driving shaft Both the first driven shaft and the first driven shaft are arranged on the first housing through the bearing and the bearing sleeve.

The second transmission module includes a second driving shaft, a second driven shaft, a second driving wheel 22, a second driven wheel 24, and a second belt connecting the second driving wheel 22 and the second driven wheel 24 23. The third motor 26 that drives the second driving shaft to rotate; the second driving wheel 22 is connected to the second driving shaft, and the second driven wheel 24 is connected to the second driven shaft; the second driving wheel 24 is connected to the second driven shaft; Both the shaft and the second driven shaft are arranged on the second housing 25 through bearings and bearing sleeves. The second driving wheel 22 and the second driven wheel 24 are arranged on one side of the second casing 25 , and the third motor 26 is arranged on the other side of the second casing 26 .

The lower side of the first belt 20 of the first transmission module contacts the cable 10, and the upper side of the second belt 23 of the second transmission module contacts the cable 10, exerting a certain pressure on the cable 10 in the up and down direction to straighten the cable 10, The two rotate in opposite directions, and can pull the cable 10 forward at the same time, reducing the magnitude of the external traction force and improving the traction efficiency. The structures of the first transmission module and the second transmission module are similar, of course, the first transmission module and the second transmission module can also be separately arranged on the left and right sides of the cable 10 to straighten the left and right sides of the cable 10 .

The lower parts of the first transmission module and the second transmission module are provided with a lifting platform, and the lifting platform includes a base 30 arranged on the base plate 2, a scissor arm frame 29 arranged on the base 30, a set The hydraulic cylinder 28 on the scissor arm frame 29, the workbench 27 arranged on the described scissor arm frame 29, the first housing and the second motor are arranged on a lifting platform, the second housing and the first The three motors are set on another lifting platform, and the height is adjusted by lifting.

Example 4

As shown in Figures 1-7, this embodiment provides a wire releasing device for transmission lines, which is further optimized on the basis of Embodiment 3:

Between the first belt 20 and the first driving pulley 22 and the first driven pulley 21, between the second belt 23 and the second driving pulley 22 and the second driven pulley 24 are meshed through meshing teeth. Edges of a driving wheel 19 , a first driven wheel 21 , a second driving wheel 22 and a second driven wheel 24 are higher than the first belt 20 or the second belt 23 .

The first driving wheel 19 is provided with a second rotation speed sensor and a second electronic counter; the second driving wheel 22 is provided with a third rotation speed sensor and a third electronic counter.

The second rotational speed sensor and the second electronic counter, the third rotational speed sensor and the third electronic counter are all controlled by the controller 15, adopt wireless connection, the controller 15 is connected to the alarm, and through the first transmission module and the second The monitoring of the transmission module monitors the speed of the pay-off and the speed of the first transmission module and the second transmission module, calculates the length of the pay-off and the length of the transmission, and when there is a mismatch, the alarm will alarm.

In the description of the present invention, it should be understood that relative terms such as "a" and "two" are only used to separate one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations any such actual relationship or order exists between them.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a pay-off for transmission line which characterized in that: the paying-off device comprises a movable base, a paying-off mechanism and a transmission mechanism which are arranged on the movable base, and a control mechanism for controlling the paying-off mechanism and the transmission mechanism;

the paying-off mechanism comprises a paying-off rack arranged on the movable base, a paying-off wheel wound with a cable and a first motor for driving the paying-off wheel to rotate;

the transmission mechanism comprises a support frame arranged on the movable base and a hanging ring arranged on the support frame;

the control mechanism comprises a first rotational speed sensor and a first electronic counter which are arranged on the paying-off wheel, and a controller for controlling the first rotational speed sensor and the first electronic counter;

the paying-off wheel is arranged on the paying-off frame through a rotating shaft;

the movable base comprises a bottom plate and travelling wheels arranged at the lower part of the bottom plate, and a pull rod is arranged at one end of the bottom plate upwards;

the pay-off rack comprises a chute arranged on the bottom plate, a support column arranged in the chute, and a baffle arranged on the support column, wherein the rotating shaft is connected with the baffle through a bearing; the lower end of the supporting column is provided with a first through hole, and two sides of the sliding groove are provided with a plurality of second through holes; the width of the sliding groove is larger than that of the supporting column, and the first through hole and the second through hole are fixed through bolts to fix the supporting column in the sliding groove;

the transmission mechanism further comprises a first transmission module and a second transmission module which are arranged on one side of the support frame; the first transmission module and the second transmission module are both belt transmission, the cable is clamped between the two belts, and the cable is extruded and straightened;

the first transmission module comprises a first driving shaft, a first driven shaft, a first driving wheel, a first driven wheel, a first belt connecting the first driving wheel and the first driven wheel, and a second motor driving the first driving shaft to rotate; the first driving wheel is connected with a first driving shaft, and the first driven wheel is connected with a first driven shaft; the first driving shaft and the first driven shaft are arranged on the first shell through bearings and bearing sleeves;

the second transmission module comprises a second driving shaft, a second driven shaft, a second driving wheel, a second driven wheel, a second belt connecting the second driving wheel and the second driven wheel, and a third motor driving the second driving shaft to rotate; the second driving wheel is connected with a second driving shaft, and the second driven wheel is connected with a second driven shaft; the second driving shaft and the second driven shaft are arranged on the second shell through bearings and bearing sleeves; the second driving wheel and the second driven wheel are arranged on one side of the second shell, and the third motor is arranged on the other side of the second shell;

the lower part of first transmission module and second transmission module all is equipped with lift platform, lift platform is including setting up base on the bottom plate, setting is in cut the fork arm support on the base, set up cut the pneumatic cylinder on the fork arm support, set up cut the workstation on the fork arm support, first casing, second motor set up on one lift platform, second casing and third motor set up on another lift platform.

2. A pay-off device for a power transmission line as claimed in claim 1, wherein: the support columns are arranged at two ends of the pay-off wheel, each support column is fixedly provided with the baffle, and the rotating shaft penetrates through the baffle.

3. A pay-off device for a power transmission line as claimed in claim 2, wherein: the support frame is located one side of pay off rack, the support frame is including setting up bracing piece on the bottom plate, the link sets up the tip of bracing piece, the cable passes through after paying out machine constructs the pay off the link.

4. A pay-off device for a power transmission line as claimed in claim 3, wherein: the output shaft of the first motor is connected with one end of the rotating shaft through a key, and the other end of the rotating shaft is provided with a crank.

5. A pay-off device for a power transmission line as set forth in claim 4, wherein: the first motor is supported by a supporting platform arranged on the bottom plate.

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