CN111276905A

CN111276905A - Multifunctional cable laying device and application

Info

Publication number: CN111276905A
Application number: CN202010129994.2A
Authority: CN
Inventors: 么洪坤
Original assignee: Kunming Ruijian Power Transmission And Distribution Engineering Co ltd
Current assignee: Kunming Ruijian Power Transmission And Distribution Engineering Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-06-12

Abstract

The invention discloses a multifunctional cable laying device and application, relating to the technical field of cable laying equipment, comprising: the device comprises a bracket and a rotating shaft arranged on the bracket, wherein two rotating arms are arranged by taking the rotating shaft as a rotating center, a driving roller with a built-in first servo motor is arranged at the position of the rotating shaft, and the axis of the driving roller is parallel to the axis of the rotating shaft; the tail ends of the two rotating arms are respectively provided with a guide pulley with the axis parallel to the driving roller; the rotating arm is provided with a plurality of mounting holes.

Description

Multifunctional cable laying device and application

Technical Field

The invention relates to the technical field of cable laying equipment, in particular to a multifunctional cable laying device and application.

Background

Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable mainly comprises a conductive wire core, an insulating layer, a sealing sheath and a protective covering layer. In the cable laying process, right-angle corner obstacles can be encountered, and large-size cables are not easy to bend and are easy to contact with positions such as corners and the like to cause damage to the cable insulation protective layer. There is no special device to solve the problem, and the common method is only to install pulleys at the corner position for guiding, however, the method is easy to generate uneven force to the cable, and the insulation layer is broken.

Disclosure of Invention

The invention aims to provide a multifunctional cable laying device and application thereof, which solve the problem of inconvenient guiding of cable laying at a corner and have multiple functions.

To solve the above problems, an aspect of the present invention provides a multifunctional cable laying apparatus including: the device comprises a bracket and a rotating shaft arranged on the bracket, wherein two rotating arms are arranged by taking the rotating shaft as a rotating center, a driving roller with a built-in first servo motor is arranged at the position of the rotating shaft, and the axis of the driving roller is parallel to the axis of the rotating shaft; guide pulleys with axes parallel to the driving idler wheels are arranged on the two rotating arms; the rotating arm is provided with a plurality of mounting holes. Wherein can the installation bearing in the pivot, make the rotation of two swinging arms easier, different bending angle's in the time of can satisfying high tension cable laying requirement through the relative position of adjusting two swinging arms. The driving roller is provided with a built-in first servo motor to provide rotating power, so that the high-voltage cable can be assisted by tangential force provided by the driving roller when turning, and the high-voltage cable is more stable when being laid in a non-straight line. The guide pulleys of installation on two swinging boom can play the guide effect of corner when high tension cable lays, and the cable is earlier through the guide pulley of installation on a swinging boom when laying cable, and the multifunctional cable laying device is worn out through the direction gyro wheel on another swinging boom at last to rethread initiative gyro wheel. Set up the mounting hole on the swinging boom and can conveniently install multifunctional cable laying device at the job site, if can directly install multifunctional cable laying device on the wall or the wall of a well of high tension cable laying route, can reduce auxiliary device's such as scaffold frame use.

A second servo motor and a third servo motor are respectively arranged on the two guide pulleys; the first, second and third servo motors are all built-in motors, and the power of the built-in motors is 400-500W. The servo motor is arranged on the guide pulley and used as supplementary power for the high-voltage cable to pass through a corner, so that the traction force applied to the high-voltage cable by the traction machine can be properly reduced when the high-voltage cable is laid, and the damage of the high-voltage cable caused by overlarge traction force is effectively reduced. The power of the three servo motors is between 400W and 400W, so that sufficient supplementary power can be provided for the high-voltage cable to pass through the corner position, and the power of the servo motors in the range is small and convenient to install. When the servo motor is high in power, the servo motor may not be installed at a position such as a downhole position due to large volume.

According to a further technical scheme, the first servo motor, the second servo motor and the third servo motor are all provided with a PWM speed regulating module, and the PWM speed regulating module is connected with a control device through a lead. The pulse width modulation is called as follows: pulse Width Modulator, referred to as PWM, is often used in dc load circuit, lamp dimming or dc motor speed regulation due to its special performance, and HW-1020 type speed regulator is a motor speed regulator and PWM speed regulator manufactured by using Pulse Width Modulation (PWM) principle. The PWM speed regulating module is arranged, so that the rotating speeds of the first servomotor, the second servomotor and the third servomotor can be synchronized, and the phenomenon that the high-voltage cable slips or the internal stress is overlarge due to different speeds of all sections of the high-voltage cable at a corner is prevented. The control device may be a Programmable Logic Controller (PLC), a digital operation Controller with a microprocessor for automatic control, and may load the control instructions into a memory at any time for storage and execution. The programmable controller consists of functional units such as a CPU, an instruction and data memory, an input/output interface, a power supply, a digital-analog converter and the like. The PWM speed regulator is controlled by writing a speed control program of the PLC, so that the speeds of the servo motors are uniform.

The further technical proposal is that the rotating arm is a bending arm. The rotating arm is preferably a circular arc-shaped bent arm and can be made of square steel. Compared with a linear rotating arm, the bending arm is easier to adjust the shape to adapt to more cable laying environments.

According to a further technical scheme, an electric telescopic support rod is installed between the two rotating arms, two ends of the electric telescopic support rod are installed on the two rotating arms respectively, and the angle between the two rotating arms is adjusted through the stretching of the electric telescopic support rod. The electric telescopic support rod can be driven by air pressure or hydraulic pressure and also can be driven by an electric push rod driven by a motor. Wherein, two electric telescopic stay bars can be arranged on the two bent rotating arms and can be arranged on the rotating arms through revolute pairs. The electric telescopic stay bar can be easily installed and detached through bolts.

A further technical scheme is that the distance between the guide pulleys on the two rotating arms and the driving roller is 50-80 cm. The angle scales are arranged on the electric telescopic supporting rods of the annular supporting plate, so that the angle between the two rotating arms can be adjusted conveniently by workers. The length of the rotating arm can be 50, 55, 60, 65, 70, 75 and 80cm, preferably 60-70 cm, including but not limited to the above examples, the length of the rotating arm in this range can satisfy the installation of the high-voltage cable at the corner position, and can also be easily installed at a position with a small space.

The multifunctional cable laying device further comprises a plurality of supporting guide wheels which can be arranged on the multifunctional cable laying device through mounting holes, and connecting rods which detachably connect the two multifunctional cable laying devices. The supporting guide wheel can be directly arranged on the rotating arm through the mounting hole, so that the high-voltage cable can be further supported when needed, or the high-voltage cable can be more smoothly transited when the rotating angle is smaller. Two multifunctional cable laying devices can be connected to the connecting rod, uses two multifunctional cable laying devices to cooperate the use simultaneously and can provide bigger power for high tension cable through the corner and supply.

Another aspect of the present invention provides an application of the multifunctional cable laying apparatus, which includes: when high voltage cable lays, the angle adjustment of two swinging booms of multi-functional cable laying device is good and fixed, then installs the corner of laying high voltage cable through the mounting hole on the swinging boom, and supplementary high voltage cable lays in the corner. It is also possible to use two or more multi-functional cable laying devices simultaneously and to adjust the angle of the rotating arm of each multi-functional cable laying device to assist in laying a high voltage cable at a corner. Because the driving idler wheel is provided with the servo motor which can provide power in the tangential direction of the corner, the high-voltage cable can pass through the corner more easily, the included angle of resultant force borne by the corner along the motion direction is smaller, and the internal stress is smaller.

In a further aspect, the present invention provides another application of the multifunctional cable laying device, which is specifically as follows: when the high-voltage cable is laid, the angles of the two rotating arms of the two multifunctional cable laying devices are adjusted to 180 degrees, then the two multifunctional cable laying devices are oppositely installed, and the high-voltage cable is straightened. The cable can produce crooked mechanical stress because of external force influence in the process of production and storage, is crooked shape. According to the installation process requirement of the cable joint and the requirement of long-term stable operation of the cable, the mechanical stress of the cable body is eliminated before the cable joint accessory is installed, and the adjacent cables at the middle joint and the two ends of the joint are ensured to keep a straight line. If the cable is bent, the cable treatment size is greatly deviated in the accessory installation process, the process requirement of joint installation cannot be met, an air gap is generated between a cable body and a stress cone due to the fact that the cable is bent seriously, the electric field intensity borne by the air gap is obviously reduced and becomes an obvious weak point of a cable joint, and the probability of breakdown and explosion is increased. In the cable terminal and the joint, an insulating tape is wrapped from the edge of the metal sheath, so that a transition conical surface is formed between the edge of the metal sheath and the outer surface of the wrapped insulating tape, and the conical surface is called a stress cone. The stress cone has the functions of improving the electric field distribution at the tail end of the metal sheath and reducing the electric field intensity at the edge of the metal sheath. The angles of the two rotating arms of the multifunctional cable laying device are adjusted to 180 degrees, namely, the multifunctional cable laying device in the embodiment is in a vertical state, the two multifunctional cable laying devices in the state are oppositely installed, the driving rollers and the guide pulleys of the two multifunctional cable laying devices are located at opposite positions, when the high-voltage cable is laid, the high-voltage cable penetrates through the space between the driving rollers and the guide pulleys of the two multifunctional cable laying devices, and the high-voltage cable is extruded by the driving rollers and the guide pulleys, so that the high-voltage cable is straightened.

The principle of the invention is explained as follows: the driving roller is arranged at the position of the rotating shaft and provides rotating power through the first servo motor, so that the high-voltage cable can be assisted by tangential force provided by the driving roller when the high-voltage cable is turned, the high-voltage cable is more stable when laid in a non-linear mode, the included angle of resultant force applied to the rotating point along the motion direction is smaller, and the internal stress is smaller. The guide pulleys arranged at the tail ends of the two rotating arms can guide the high-voltage cable laying. The mounting hole on the swinging boom can conveniently install multifunctional cable laying device at the job site, if can directly install multifunctional cable laying device on the wall or the wall of a well of high tension cable laying route, can reduce auxiliary device's such as scaffold frame use. The use of a servo motor with less power can reduce the volume and be more easily installed in a smaller space such as a cable well.

The technical scheme of the invention has the following beneficial technical effects: the function of preventing the high-voltage cable from being damaged is achieved when the high-voltage cable is laid. The angle of the rotating arm can be adjusted to meet the requirements of various angles of the high-voltage cable during laying. The high-voltage cable can be straightened, an air gap is prevented from being generated between the cable body and the stress cone, and the probability of breakdown and explosion is reduced.

Drawings

FIG. 1 is a schematic structural view according to embodiment 1 of the present invention;

FIG. 2 is a schematic structural view according to embodiment 2 of the present invention;

FIG. 3 is a use state diagram according to embodiment 2 of the present invention;

fig. 4 is a schematic diagram of a cabling application according to embodiment 2 of the present invention;

fig. 5 is a schematic diagram of a cabling application according to embodiment 2 of the present invention;

fig. 6 is a schematic illustration of an application for performing cable straightening according to embodiment 2 of the present invention.

Reference numerals: 1: a support; 2: a rotating arm; 3: a driving roller; 4: a guide pulley; 5: mounting holes; 6: an electric telescopic stay bar; 9: a high voltage cable; 11 a rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example 1

As shown in fig. 1, a multifunctional cable laying apparatus includes: the device comprises a support 1 and a rotating shaft 11 arranged on the support 1, wherein two rotating arms 2 are arranged by taking the rotating shaft 11 as a rotating center, a driving roller 3 is arranged at the position of the rotating shaft 11, a first servo motor is arranged in the rotating shaft, and the axis of the driving roller is parallel to the axis of the rotating shaft 11; the tail ends of the two rotating arms 2 are respectively provided with a guide pulley 4 with the axis parallel to the driving roller 3; the rotating arm 2 is provided with a plurality of mounting holes 5. When laying a cable at a corner position, the angle between the two rotary arms 2 of the multifunctional cable laying apparatus according to the present embodiment is first adjusted. And then the installation is arranged at the corner position of a preset laying line through the installation hole 5 on the rotating arm 2, wherein the installation can be directly installed at the wall and other positions by using fasteners such as expansion screws and the like without installing auxiliary tools such as a scaffold and the like. The method of routing the cable through the multiple function cabling apparatus during cabling may be as shown in figure 2.

Example 2

As shown in fig. 3, a multifunctional cable laying device is improved based on embodiment 1 by: a second servo motor and a third servo motor are respectively arranged on the two guide pulleys 4; the first, second and third servo motors are all built-in motors, and the power of the built-in motors is 400W. Each servo motor is also provided with a control device of the PWM speed regulation module, and the control device is electrically connected with the first, second and third servo motors. The swinging boom 2 is the bending type, installs electric telescopic stay bar 6 between two swinging booms 2, and electric telescopic stay bar 6's both ends are installed respectively on two swinging booms 2, and electric telescopic stay bar 6 realizes flexible through hydraulic pressure, adjusts the angle between two swinging booms 2. The distance between the guide pulleys 4 on the two rotating arms 2 and the driving roller 3 is 70 cm.

The multifunctional cable laying device provided in embodiment 1 is used as a corner device during cable laying, and the high-voltage cable passes through the two guide pulleys 4 and is clamped by the driving roller 3 by adjusting the electric telescopic stay 6 as shown in fig. 3, so that the high-voltage cable can be prevented from sliding and falling off. The servo motors respectively arranged on the two guide pulleys 4 can provide auxiliary power for laying the high-voltage cable, and the internal stress of the high-voltage cable is improved.

As shown in fig. 4 and 5, which are combined applications of the multifunctional cable laying apparatus of the present invention, two multifunctional cable laying apparatuses are used to cooperate when a high-voltage cable is laid through a corner position. The method specifically comprises the following steps: when high-voltage cable laying is carried out, the angle between the two multifunctional cable laying device rotating arms 2 is adjusted and fixed through the electric telescopic supporting rods 6, and then the multifunctional cable laying device rotating arms are installed at the corners of a preset high-voltage cable laying line through the installing holes 5 in the rotating arms 2. As shown in the figures, the positions of the driving rollers 3 and the guide pulleys 4 of the two multifunctional cable laying devices correspond to each other so that the cables can pass between the driving rollers 3 and the guide pulleys 4 of the two multifunctional cable laying devices during laying. The guiding of the cable laying using two or more multifunctional cable laying devices in the corner positions can be adapted to more varied laying environments, and the driving roller 3 and the guide pulley 4 can also provide additional power during laying.

As shown in fig. 6, the multifunctional cable laying apparatus of the present invention is applied to cable straightening, and the application is specifically as follows: when high-voltage cable laying is carried out, cables need to be straightened, the angles of the two rotating arms 2 of the two multifunctional cable laying devices are adjusted, and then the two multifunctional cable laying devices are installed as shown in fig. 6, so that the cables can be straightened by passing through the space between each pair of driving rollers 3 and the guide pulleys 4. Many-to-many functional cable laying devices can also be used for straightening high-voltage cables in series.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A multifunctional cabling installation, comprising: the device comprises a support (1) and a rotating shaft (11) arranged on the support (1), wherein two rotating arms (2) are arranged by taking the rotating shaft (11) as a rotating center, a driving roller (3) with a built-in first servo motor is arranged at the position of the rotating shaft (11), and the axis of the driving roller (3) is parallel to the axis of the rotating shaft (11); guide pulleys (4) with axes parallel to the driving roller (3) are arranged on the two rotating arms (2); the rotating arm (2) is provided with a plurality of mounting holes (5).

2. Multifunctional cable laying device according to claim 1, characterized in that said two guide pulleys (4) are respectively fitted with a second servomotor and a third servomotor; the first servo motor, the second servo motor and the third servo motor are all built-in motors, and the power of the built-in motors is 400-500W.

3. The multifunctional cable laying device according to claim 2, wherein the first, second and third servo motors are electrically equipped with a PWM speed regulation module, and the PWM speed regulation module is connected to the control device through a wire.

4. Multifunctional cabling arrangement according to claim 1, wherein the swivel arm (2) is a curved arm.

5. The multifunctional cable laying device according to claim 4, characterized in that an electric telescopic stay (6) is installed between the two rotating arms (2), two ends of the electric telescopic stay (6) are respectively installed on the two rotating arms (2), and the angle between the two rotating arms (2) is adjusted by the expansion and contraction of the electric telescopic stay (6).

6. Multifunctional cable laying device according to claim 5, characterized in that the distance between the guide pulleys (4) on the two rotating arms (2) and the driving roller (3) is 50-80 cm.

7. Multifunctional cabling arrangement according to claim 1, further comprising a number of support runners mountable to the multifunctional cabling arrangement via the mounting holes (5); and the connecting rod is used for detachably connecting the two multifunctional cable laying devices.

8. Use of a multifunctional cabling arrangement according to claim 1, in particular as follows: when high-voltage cable laying is carried out, the angles of the two rotating arms (2) of the multifunctional cable laying device are well adjusted and fixed, then the multifunctional cable laying device is installed at a corner where the high-voltage cable is laid through the installation holes (5) in the rotating arms (2), and the high-voltage cable is laid at the corner in an auxiliary mode.

9. Use of a multifunctional cabling arrangement according to claim 1, in particular as follows: when high-voltage cables are laid, the angles of the two rotating arms (2) of the two multifunctional cable laying devices are adjusted to 180 degrees, and then the two multifunctional cable laying devices are oppositely installed to straighten the high-voltage cables.