Active vehicle back type laying device for high-voltage cable

Abstract

The utility model provides an active vehicle-back type laying device for a high-voltage cable. An automatic cable laying device and an intelligent control cabinet are arranged on a flat car; the automatic cable laying device comprises four groups of variable frequency motors, four rollers and four variable frequency motor mounting bases, the four variable frequency motor mounting bases are detachably connected to the upper surface of the flat car, connecting lines between every two adjacent variable frequency motor mounting bases are perpendicular to each other, the connecting lines between the four variable frequency motor mounting bases form a rectangular structure, and the four variable frequency motor mounting bases are arranged in the rectangular structure. The variable frequency motors are installed on the side faces of the variable frequency motor installation bases and used for controlling rotation of the rolling wheels, and the intelligent control cabinet is arranged on the upper surface of the flat car and electrically connected with the four variable frequency motors. The device effectively solves the problems that in the current construction process, the laying site is limited, a crane is not limited, the consumed time is short, cable damage and laying risks exist, and the construction efficiency is low, a large number of personnel can be saved, the construction time can be shortened, the construction efficiency is high, the rotating speed can be automatically adjusted, and use is flexible.

Description

Technical Field

[0001] The present application relates to the field of high-voltage cable laying, and in particular to an active vehicle-back type high-voltage cable laying device. Background Art

[0002] The laying environment of high-voltage cables mainly includes: vertical shafts, horizontal tunnels; inclined shafts, horizontal tunnels; cable tunnels, etc. Taking 500kV cables as an example, the outer diameter of 500kV high-voltage cables is about 200mm-300mm, which is thicker and harder, and the weight can reach about 40t. It is mainly used for busbar connection between ground switch station GIS and underground GIS, and plays a transmission role equivalent to busbar (can carry large current).

[0003] High-voltage cables are usually laid in the outgoing line field of the ground switch station. The following difficulties may be encountered during the laying process:

[0004] (1) The outgoing line space of a 500 kV system is usually compact, and it is even more difficult to ensure the laying space during the construction phase.

[0005] (2) The weight of a cable drum can reach about 40 tons. Under the premise of limited space and cross-construction, the truck crane needs to be at least 90 tons and may need to be on standby for a long time. If the site is not large enough and the storage location is far away, unloading the goods by truck will also become one of the risk points.

[0006] (3) It is difficult to ensure that the cable tray is hardened during the construction phase. Uneven ground or insufficient hardening of the ground will bring risks to cable laying.

[0007] (4) Cable laying is mainly carried out through cable conveyors combined with traction machines. In rainy weather, it is difficult to ensure that the conveyors are effectively tightened and upright. The safety factor of the traction machine is low, and in longer tunnels or inclined shafts (vertical shafts), it is difficult to ensure fixation and power supply. Utility Model Content

[0008] The present application provides a high-voltage cable active vehicle-back type laying device, which is used to solve the problems existing in the current high-voltage cable laying process, such as limited laying site, cable damage and laying risks, and low construction efficiency.

[0009] An embodiment of the present application provides a high-voltage cable active vehicle-back laying device, comprising a flatbed vehicle, on which an automatic cable laying device and an intelligent control cabinet are arranged; the automatic cable laying device comprises four groups of variable frequency motors, four rollers and four variable frequency motor mounting seats, the four variable frequency motor mounting seats are detachably connected to the upper surface of the flatbed vehicle, the connecting line between two adjacent variable frequency motor mounting seats is perpendicular to each other, the connecting line between the four variable frequency motor mounting seats forms a rectangular structure, the variable frequency motor is installed on the side of the variable frequency motor mounting seat, and is used to control the rotation of the rollers, and the intelligent control cabinet is arranged on the upper surface of the flatbed vehicle and is electrically connected to the four variable frequency motors.

[0010] In a feasible implementation, it also includes two first connecting rods and two second connecting rods; the two first connecting rods are parallel to each other and are respectively arranged between the two variable frequency motor mounting seats arranged along the first direction, and the first direction is defined as the direction of travel of the flatbed truck; the two second connecting rods are parallel to each other and are respectively arranged between the two variable frequency motor mounting seats arranged along the second direction, and the second direction is defined as a direction along a horizontal plane perpendicular to the first direction.

[0011] In a feasible implementation, the first connecting rod includes a telescopic rod and a telescopic sleeve, one end of the telescopic rod and one end of the telescopic sleeve are plugged into each other, and the other ends of the telescopic rod and the telescopic sleeve are respectively connected to two variable frequency motor mounting seats arranged along the first direction.

[0012] In a feasible implementation, it also includes a bolt; a threaded hole is provided on the telescopic rod, and a through hole is provided on the telescopic sleeve. The bolt passes through the through hole and is threadedly connected with the threaded hole to fix the telescopic rod and the telescopic sleeve.

[0013] In a feasible implementation, a shock-absorbing pad is provided between the lower surface of the variable frequency motor mounting seat and the upper surface of the flatbed vehicle.

[0014] In a feasible implementation, a cable supporting device is further included for temporarily supporting the cable drum.

[0015] In a feasible implementation, a hydraulic jack is also included for adjusting the levelness of the upper surface of the flatbed vehicle according to the terrain.

[0016] In a feasible implementation, a vehicle-mounted diesel generator is also included as a mobile power source.

[0017] In a feasible implementation, a clamping groove is provided on the surface of the roller, and the clamping groove is clamped with the inner side of the circular disc of the cable drum.

[0018] In a feasible implementation, a rubber pad is provided in a groove on the surface of the roller, and the groove is engaged with the inner side of the circular disc of the cable drum.

[0019] The embodiment of the present application provides a high-voltage cable active back-type laying device, which is provided with a flatbed truck, on which an automatic cable laying device and an intelligent control cabinet are provided; the automatic cable laying device includes four sets of variable frequency motors, four rollers and four variable frequency motor mounting seats, the four variable frequency motor mounting seats are detachably connected to the upper surface of the flatbed truck, the connection between two adjacent variable frequency motor mounting seats is perpendicular to each other, the connection between the four variable frequency motor mounting seats forms a rectangular structure, the variable frequency motor is installed on the side of the variable frequency motor mounting seat, and is used to control the rotation of the rollers, and the intelligent control cabinet is arranged on the upper surface of the flatbed truck and is electrically connected to the four variable frequency motors. This device effectively solves the problems of limited laying site and short time for cranes to be unrestricted, cable damage and laying risks, and low construction efficiency in the current construction process. This device can save a lot of personnel, shorten construction time, have high construction efficiency, and can automatically adjust the speed and is flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the active vehicle-back type laying device for high-voltage cables provided in this application;

[0022] Figure 2 It is a schematic diagram of the main view of the active vehicle-back type laying device for high-voltage cables provided in the present application;

[0023] Figure 3 It is a side schematic diagram of the active vehicle-back type laying device for high-voltage cables provided in the present application.

[0024] Description of reference numerals:

[0025] 1- flatbed car; 2- automatic cable laying device; 21- frequency conversion motor; 22- roller; 23- frequency conversion motor mounting seat; 24- first connecting rod; 25- second connecting rod; 251- telescopic rod; 252- telescopic sleeve; 253- threaded hole; 254- through hole; 3. Intelligent control cabinet; 4- cable support device; 5- hydraulic jack; 6- vehicle-mounted diesel generator. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0027] At present, high-voltage cables are usually laid in the outgoing line field of the ground switch station. Taking the construction of 500kV cables as an example, the space of the outgoing line field is usually compact during the construction process, and it is even more difficult to ensure the laying space during the construction stage. The weight of the whole cable drum can reach about 40t. Under the premise of limited space and cross construction, the truck crane needs to be at least 90t and may need to be on standby for a long time. If the site is not enough and the storage location is far away, unloading the goods will also become one of the risk points. It is difficult to ensure the hardening and pouring of the cable drum installation during the construction stage. Uneven ground and insufficient hardening of the ground will bring risks to cable laying. Cable laying is mainly carried out by cable conveyors combined with traction machines. In rainy weather, it is difficult to ensure the effective tightening of the conveyor. The safety factor of the traction machine is low and in longer tunnels or inclined shafts (vertical shafts), it is difficult to ensure fixation and power supply. The high-voltage cable active vehicle-back laying device provided in the present application effectively solves the problems of limited laying site, short time for unlimited cranes, cable damage and laying risks, and low construction efficiency in the current construction process. It saves a large number of personnel, shortens construction time, has high construction efficiency, can automatically adjust the rotation speed, and is flexible to use.

[0028] The specific structure of the active vehicle-back laying device for high-voltage cables provided in the present application is described in detail below in conjunction with the accompanying drawings.

[0029] See also Figure 1 The embodiment of the present application provides a high-voltage cable active vehicle-back laying device, including a flatbed vehicle 1, on which an automatic cable laying device 2 and an intelligent control cabinet 3 are arranged; the automatic cable laying device 2 includes four groups of variable frequency motors 21, four rollers 22 and four variable frequency motor mounting seats 23, the four variable frequency motor mounting seats 23 are detachably connected to the upper surface of the flatbed vehicle 1, the connecting line between two adjacent variable frequency motor mounting seats 23 is perpendicular to each other, and the connecting line between the four variable frequency motor mounting seats 23 forms a rectangular structure, the variable frequency motor 21 is installed on the side of the variable frequency motor mounting seat 23, and is used to control the rotation of the roller 22, and the intelligent control cabinet 3 is arranged on the upper surface of the flatbed vehicle 1 and is electrically connected to the four variable frequency motors 21.

[0030] When preparing for cable laying on a highway or in a long cable trench, the cable drum of the high-voltage cable is placed on the automatic cable laying device 2 of the flatbed truck 1 by a crane. During the construction process, the high-voltage cable is laid as the flatbed truck 11 is opened, that is, the automatic cable laying device 2 performs the laying operation while the flatbed truck 11 is driving. With this device, the crane is used for a shorter time and does not need to be on standby for a long time, which effectively solves the problem of short crane usage time and speeds up the construction progress.

[0031] The connection between the four variable frequency motor mounting seats 23 forms a rectangular parallelepiped, and the four variable frequency motor mounting seats 23 are respectively located at the four corners of the rectangular parallelepiped. The distance between the variable frequency motor mounting seats 23 is set according to the size of the cable drum. When in use, the roller 22 installed on the variable frequency motor mounting seat 23 contacts the circumference of the cable drum disc, and the friction force is used to drive the rotation of the cable drum, thereby completing the wire release operation. The roller 22 is controlled by the variable frequency motor 21, and the variable frequency motor 21 is adjusted in speed by the intelligent control cabinet 3. The four variable frequency motors 21 maintain synchronization, thereby stabilizing the cable drum and preventing the cable drum from deflecting. This device can adjust the speed at any time to control the start and stop, forward rotation and reverse rotation of any variable frequency motor 21.

[0032] In some embodiments, two first connecting rods 25 and two second connecting rods 24 are also included; the two first connecting rods 25 are parallel to each other and are respectively arranged between the two variable frequency motor mounting seats 23 arranged along the first direction, and the first direction is defined as the direction of travel of the flatbed vehicle, that is, Figure 1 In the X direction, the two second connecting rods 24 are parallel to each other and are respectively arranged between the two variable frequency motor mounting seats 23 arranged along the second direction, and the second direction is defined as a direction perpendicular to the first direction along the horizontal plane, that is, Figure 1 Center Y direction.

[0033] The first connecting rod 25 and the second connecting rod 24 connect the two adjacent variable frequency motor mounting seats 23 together, thereby forming an integral structure, thereby enhancing the stability of the entire device and preventing the cable drum from tipping over during rotation.

[0034] In some embodiments, see Figure 2 The first connecting rod 25 includes a telescopic rod 251 and a telescopic sleeve 252. One end of the telescopic rod 251 is plugged into one end of the telescopic sleeve 252. The other ends of the telescopic rod 251 and the telescopic sleeve 252 are respectively connected to two variable frequency motor mounting seats 23 arranged along the first direction.

[0035] The telescopic rod 251 and the telescopic sleeve 252 are plugged together, and the plugging length can be determined according to the axial length of the cable reel. This structure allows the length of the first connecting rod 25 to be adjusted to adapt to cable reels of different specifications.

[0036] In some embodiments, bolts are also included; a threaded hole 253 is provided on the telescopic rod 251, and a through hole 254 is provided on the telescopic sleeve 252. The bolt passes through the through hole 254 and is threadedly connected with the threaded hole 253 to fix the telescopic rod 251 and the telescopic sleeve 252. The telescopic rod 251 and the telescopic sleeve 252 are fixed together by bolts, so that the structure of the entire device is more stable.

[0037] In some embodiments, a shock-absorbing pad is provided between the lower surface of the variable frequency motor mounting base 23 and the upper surface of the flatbed vehicle 1 to provide a buffer during the rotation of the cable drum to prevent damage to the equipment.

[0038] In some embodiments, a cable support device 4 is further included for temporarily supporting the cable drum. During the construction preparation process, after the cable drum is placed and before the cable laying operation begins, the cable support device 4 is used to support the cable drum, share the pressure on the automatic cable laying device 2, and extend the service life of the device.

[0039] In some embodiments, a hydraulic jack 5 is further included for adjusting the levelness of the upper surface of the flatbed vehicle 1 according to the terrain. Before the cable laying operation begins, the hydraulic jack 5 is used to level the support.

[0040] In some embodiments, a vehicle-mounted diesel generator 6 is also included to serve as a mobile power source.

[0041] In some embodiments, a slot 221 is provided on the surface of the roller 22, and the slot 221 is engaged with the inner side of the circular plate of the cable drum. The slot 221 makes the engagement between the circular plate of the cable drum and the roller 22 more stable, preventing the cable drum from tipping over.

[0042] In some embodiments, see Figure 3 A rubber pad is arranged in the slot 221 on the surface of the roller 22, and the slot 221 is engaged with the inner side of the circular plate of the cable drum. The rubber pad can increase the friction force and buffer the shock.

[0043] According to the above technical features, the high-voltage cable active back-type laying device provided by the present application is provided with an automatic cable laying device and an intelligent control cabinet on the flatbed vehicle; the automatic cable laying device includes four sets of variable frequency motors, four rollers and four variable frequency motor mounting seats, the four variable frequency motor mounting seats are detachably connected to the upper surface of the flatbed vehicle, the connection lines between two adjacent variable frequency motor mounting seats are perpendicular to each other, the connection lines between the four variable frequency motor mounting seats form a rectangular structure, the variable frequency motor is installed on the side of the variable frequency motor mounting seat, used to control the rotation of the rollers, and the intelligent control cabinet is arranged on the upper surface of the flatbed vehicle and electrically connected to the four variable frequency motors. When the device is preparing for cable laying construction on a highway or a long cable trench, the cable drum of the high-voltage cable is placed on the automatic cable laying device 2 of the flatbed vehicle 1 by a crane. During the construction process, the high-voltage cable is laid as the flatbed vehicle 11 is opened, that is, during the driving of the flatbed vehicle 11, the automatic cable laying device 2 performs the laying operation. When using this device, the crane is used for a shorter time and does not need to be on standby for a long time. It effectively solves the problems of limited laying site and short crane time in the current construction process, as well as cable damage and laying risks and low construction efficiency. This device can save a large number of personnel, shorten construction time, have high construction efficiency, and can automatically adjust the rotation speed and is flexible to use.

[0044] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0045] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A high-voltage cable active vehicle-back laying device, characterized in that: The invention comprises a flatbed vehicle (1), on which an automatic cable laying device (2) and an intelligent control cabinet (3) are arranged; the automatic cable laying device (2) comprises four sets of variable frequency motors (21), four rollers (22) and four variable frequency motor mounting seats (23); the four variable frequency motor mounting seats (23) are detachably connected to the upper surface of the flatbed vehicle (1); the connection line between two adjacent variable frequency motor mounting seats (23) is perpendicular to each other; the connection line between the four variable frequency motor mounting seats (23) forms a rectangular structure; the variable frequency motor (21) is mounted on the side of the variable frequency motor mounting seat (23) and is used to control the rotation of the rollers (22); the intelligent control cabinet (3) is arranged on the upper surface of the flatbed vehicle (1) and is electrically connected to the four variable frequency motors (21).

2. The high-voltage cable active vehicle-back laying device according to claim 1 is characterized in that: It also includes two first connecting rods (25) and two second connecting rods (24); the two first connecting rods (25) are parallel to each other and are respectively arranged between the two variable frequency motor mounting seats (23) arranged along a first direction, the first direction is defined as the direction along which the flatbed vehicle travels; the two second connecting rods (24) are parallel to each other and are respectively arranged between the two variable frequency motor mounting seats (23) arranged along a second direction, the second direction is defined as a direction along a horizontal plane that is perpendicular to the first direction.

3. The high-voltage cable active vehicle-back laying device according to claim 2 is characterized in that: The first connecting rod (25) comprises a telescopic rod (251) and a telescopic sleeve (252), one end of the telescopic rod (251) and one end of the telescopic sleeve (252) are plugged together, and the other ends of the telescopic rod (251) and the telescopic sleeve (252) are respectively connected to two variable frequency motor mounting seats (23) arranged along the first direction.

4. The high-voltage cable active vehicle-back laying device according to claim 3 is characterized in that: It also includes a bolt; a threaded hole (253) is provided on the telescopic rod (251), a through hole (254) is provided on the telescopic sleeve (252), and the bolt passes through the through hole (254) and is threadedly connected with the threaded hole (253) to fix the telescopic rod (251) and the telescopic sleeve (252).

5. The high-voltage cable active vehicle-back laying device according to claim 1 is characterized in that: An anti-vibration pad is provided between the lower surface of the variable frequency motor mounting seat (23) and the upper surface of the flatbed vehicle (1).

6. The high-voltage cable active vehicle-back laying device according to claim 1 is characterized in that: It also comprises a cable supporting device (4) for temporarily supporting the cable drum.

7. The high-voltage cable active vehicle-back laying device according to claim 1 is characterized in that: It also includes a hydraulic jack (5) for adjusting the levelness of the upper surface of the flatbed vehicle (1) according to the terrain.

8. The high-voltage cable active vehicle-back laying device according to claim 1 is characterized in that: It also includes an on-vehicle diesel generator (6) used as a mobile power source.

9. The high-voltage cable active vehicle-back laying device according to claim 1, characterized in that: A clamping groove (221) is provided on the surface of the roller (22), and the clamping groove (221) is clamped with the inner surface of the circular disc of the cable disc.

10. The high-voltage cable active vehicle-back laying device according to claim 9, characterized in that: A rubber pad is arranged in a clamping groove (221) on the surface of the roller (22), and the clamping groove (221) is clamped with the inner surface of the circular disc of the cable disc.

Images