Multi-machine linkage cable laying machine suitable for cable laying in cable wells

Abstract

This invention provides a multi-machine linkage cable laying machine suitable for cable laying in cable wells, comprising four parts: a transport vehicle, a lifting device, a pusher, and a monitoring device. The transport vehicle serves as the transfer and support device for the cable laying machine, facilitating its transportation and coordinating with the lifting device to achieve both in-well and above-well laying modes. The lifting device adjusts the height of the pusher, lowering it into the cable well for alignment with the laying pipe, or raising it onto the transport vehicle for ground-level cable laying. The pusher clamps the cable with a specific pre-tension force for different cable types, using friction between the cable and the pusher's rubber tracks to propel the cable. The monitoring device provides real-time monitoring, display, and optimized control of cable laying parameters, transmitting the operating parameters of each cable pusher to a coordination control terminal for coordinated control of multiple cable conveyors on-site.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, specifically to a multi-machine linkage cable laying machine suitable for cable laying in cable wells. Background Technology

[0002] Power cables are responsible for transmitting high-voltage electrical energy in power systems, including generation, distribution, transmission, transformation, and supply lines. The cable laying method is crucial for ensuring the safety and reliability of transmission lines. Currently, most cable laying in my country uses a winch-driven steel wire rope to pull the cable through ducts. However, with the application of large-diameter cables, increased cable lengths, and complex and varied laying paths, cable twisting and damage often occur, failing to meet normal cable operation requirements. Furthermore, excessively large bending diameters can lead to cable wear and armor flattening, requiring timely adjustments by workers, significantly increasing labor intensity. Traditional cable laying methods can no longer meet the requirements of modern power grid construction. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-machine linkage cable laying machine suitable for cable laying in cable wells. This laying machine has high cable laying quality, high efficiency, low manpower input, and is easy to coordinate. It saves a lot of space during the cable laying process, making it more convenient and faster. At the same time, it combines multiple working modes to introduce the cable into the designated position in the cable well.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A multi-machine linkage cable laying machine suitable for cable laying in cable wells is disclosed. This cable laying machine comprises four parts: a transport vehicle, a lifting device, a pusher, and a monitoring device. The transport vehicle serves as the transfer and support device for the cable laying machine, coordinating with the lifting device to achieve cable laying both inside and above the cable well. The lifting device raises and lowers the pusher into the cable well and aligns it with the laying pipe for cable laying, or raises the pusher onto the transport vehicle for ground cable laying. The pusher clamps the cable with a specific pre-tension force according to different cable types, and the cable is pushed and laid using the friction between the cable and the pusher's rubber tracks. The monitoring device monitors, displays, and optimizes the cable laying parameters in real time, transmitting the operating parameters to a coordination control terminal for unified optimization of the operating parameters of each laying machine.

[0006] The multi-machine linkage cable laying machine is suitable for two working modes: cable laying in conduits inside wells and cable laying on the ground. In the cable laying mode inside wells, the lifting device lowers the pusher into the cable well and aligns it with the laying pipe to achieve cable laying inside the cable well; in the cable laying mode on the ground, the lifting device lifts the pusher onto the transport vehicle to achieve cable laying on the ground.

[0007] The transport vehicle is equipped with a pusher fixing device. When the cable laying machine is in ground working mode, the pusher fixing device counteracts the cable pushing reaction force. When transporting the cable laying machine, the pusher fixing device ensures that the pusher will not move relative to the ground, thus ensuring transportation safety.

[0008] The lifting device includes a lifting motor, a rope guide, a hook, and a support frame. The support frame is threadedly connected to and fixes the lifting device. The lifting motor drives the rope guide to rotate via its output shaft; the hook is attached to the end of the wire rope of the rope guide.

[0009] The cable pusher includes a pushing device, a clamping device, a detection device, and a fixing device. The pushing device and the clamping device are fixed together by a flange threaded connection; the clamping device and the fixing device are connected by bolts; the detection device is arranged within the pushing device and the clamping device. The cable pusher is arranged vertically to facilitate cable removal from the side.

[0010] The pushing device includes a pushing motor, a pushing device reducer, a power transmission mechanism, a pushing belt, an guide wheel, and a support plate. The pushing motor is connected to the pushing device reducer via a coupling; the pushing device reducer is connected to the power transmission mechanism via a key; the power transmission mechanism consists of a pair of transmission gears with a transmission ratio of 1:4, which are connected to the pushing belt sprocket via a key; the pushing belt has a double-row chain structure and an internal tightening screw, which is installed inside the pushing belt via a shaft hole; the guide wheel is fixed to the shaft of the support plate via a bearing connection.

[0011] The clamping device includes a clamping motor, a clamping device reducer, a symmetrical threaded screw, and a screw nut. The clamping motor is connected to the clamping device reducer via a coupling; the clamping device reducer is connected to the symmetrical threaded screw via a coupling; the symmetrical threaded screw and the screw nut are connected by threads.

[0012] The detection device includes a spoke-type pressure sensor and a photoelectric encoder. The spoke-type pressure sensor is threadedly connected to the symmetrical threaded screw in the clamping device and is placed side by side with the screw nut in the clamping device. The photoelectric encoder is threadedly connected to the support plate of the pushing device. The friction wheel of the photoelectric encoder rotates due to friction with the guide wheel of the pushing device, thereby detecting information such as cable pushing speed and laying length.

[0013] The fixing device includes a support base, a support rod, and a rubber base. The support base is threadedly connected to the pusher frame; one end of the support rod is threadedly fixed to the support base, and the other end is fixed to the rubber base; when the cable is laid in a conduit inside the well, the rubber side of the rubber base is pressed against the inner wall of the cable well.

[0014] The monitoring device comprises four parts: an information acquisition module, a display module, a communication module, and an intelligent control module. The information acquisition module consists of a detection device and related conversion circuits. The display module includes two display columns: operating parameters and running parameters. The running parameters column displays cable and control parameters uniformly sent by the coordination control terminal, while the operating parameters column displays the current working status of the cable pusher. When slippage is detected, the green indicator light next to the slippage detection turns red and flashes, and the event is simultaneously uploaded to the coordination control terminal. The communication module uses a LoRa wireless communication module and supports the LoRaWAN communication protocol. The intelligent control module uses a built-in control algorithm in the monitoring device. Because each cable pusher in series has a different cable length, the preset clamping force may not be sufficient to generate enough pushing force, causing the cable to slip during the pushing process. Once the system detects slippage, the control module will start the clamping motor to clamp the cable with a preset clamping force increment until the slippage is eliminated.

[0015] The main advantage of this invention is that it designs a multi-machine linkage cable laying machine suitable for cable laying in cable wells. Multiple laying machines join the cable laying work in a relay manner and work together under the coordination of the coordinating terminal. This realizes intelligent laying of large-diameter cables under complex working conditions, reduces labor intensity, improves the automation level of cable laying, and greatly improves the work efficiency of cable laying. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a multi-machine linkage cable laying machine applicable to cable laying in cable wells under the cable laying mode of the present invention.

[0018] Figure 2 This is a schematic diagram of a multi-machine linkage cable laying machine applicable to cable laying in cable wells under the ground cable laying mode of the present invention;

[0019] Figure 3 This is a schematic diagram of the cable pusher in the first direction.

[0020] Figure 4 This is a schematic diagram of the second-direction structure of the cable pusher;

[0021] Figure 5 A schematic diagram of the first direction of the cable pusher mechanism;

[0022] Figure 6 This is a schematic diagram of the second direction of the cable pusher mechanism;

[0023] Figure 7 This is a schematic diagram of the clamping structure of the cable pusher;

[0024] Figure 8 Schematic diagram of the cable pusher fixing device;

[0025] Figure 9 Control flowchart for monitoring device of multi-machine linkage cable laying machine;

[0026] Figure 10 Circuit diagram of the information acquisition module for the monitoring device of a multi-machine linkage cable laying machine;

[0027] Figure 11 Schematic diagram of the display module of the monitoring device for multi-machine linkage cable laying machine. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, its specific embodiments are described in detail below with reference to the accompanying drawings:

[0029] Please see Figures 1 to 8 According to the preferred embodiment of the present invention, a multi-machine linkage cable laying machine suitable for cable laying in cable wells includes a transport vehicle 1, a lifting device 2, a pusher 3, and a monitoring device 4. The transport vehicle 1 is the transfer and support device for the cable laying machine, coordinating with the lifting device 2 to achieve cable laying both inside and above the cable well. The lifting device 2 lifts and lowers the pusher 3 into the cable well and aligns it with the laying pipe to achieve cable laying within the cable well, or lifts the pusher 3 onto the transport vehicle 1 to achieve ground cable laying. The pusher 3 clamps the cable with a certain pre-tightening force according to different cable types, and the cable is pushed and laid through the friction between the cable and the rubber track of the pusher 3. The monitoring device 4 realizes real-time monitoring, display, and optimized control of cable laying operating parameters, and transmits the operating parameters to a coordination control terminal, which uniformly optimizes the operating parameters of each laying machine.

[0030] The multi-machine linkage cable laying machine described above is suitable for both in-well cable conduit laying and surface cable laying modes. In the in-well cable conduit laying mode, the lifting device 2 lowers the pusher 3 into the cable well to align with the laying conduit, thus achieving cable laying within the cable well. In the surface cable laying mode, the lifting device 2 raises the pusher 3 onto the transport vehicle 1, thus achieving surface cable laying. A schematic diagram of the cable laying machine is shown below. Figure 1 and Figure 2 As shown.

[0031] The transport vehicle 1 is equipped with a pusher fixing device. When the cable laying machine is in ground working mode, the pusher fixing device can counteract the cable pushing reaction force. When transporting the cable laying machine, the pusher fixing device ensures that the pusher will not move relative to the ground, thus ensuring transportation safety.

[0032] The lifting device 2 includes a lifting motor, a rope guide, a hook, and a support frame. The support frame is fixed to the lifting device by a threaded connection. The lifting motor drives the rope guide to rotate through its output shaft; the hook is attached to the end of the wire rope of the rope guide.

[0033] The cable pusher 3 includes a pushing device 31, a clamping device 32, a detection device 33, and a fixing device 34. The pushing device 31 and the clamping device 32 are fixed together by a flange threaded connection; the clamping device 32 and the fixing device 34 are connected by bolts; the detection device 33 is arranged between the pushing device 31 and the clamping device 32. The cable pusher is 1000mm long, 483mm high, and 443mm wide, suitable for operation in confined spaces within cable laying wells. Its vertical arrangement facilitates cable removal from the side. A schematic diagram of the cable pusher 3 is shown below. Figure 3 and Figure 4 As shown.

[0034] The pushing device 31 includes a pushing device reducer 311, a power transmission mechanism 312, a pushing belt 313, an guide wheel 314, and a support plate 315. The pushing device reducer 311 is connected to the power transmission mechanism 312 via a key; the power transmission mechanism 312 consists of a pair of transmission gears with a transmission ratio of 1:4, which are connected to the sprocket of the pushing belt 313 via a key; the pushing belt 313 has a double-row chain structure and an internal tightening screw, which is installed inside the pushing belt 313 via a shaft hole; the guide wheel 314 is fixed to the shaft of the support plate 315 via a bearing connection. A schematic diagram of the pushing device 31 is shown below. Figure 5 and Figure 6 As shown.

[0035] The clamping device 32 includes a clamping motor 321, a reducer 322, a symmetrical threaded screw 323, and a screw nut 324. The clamping motor 321 is connected to the clamping device reducer 322 via a coupling; the clamping device reducer 322 is connected to the symmetrical threaded screw 323 via a coupling; the symmetrical threaded screw 323 and the screw nut 324 are connected by threads. A schematic diagram of the clamping device 32 is shown below. Figure 4 As shown.

[0036] The detection device 33 includes a spoke-type pressure sensor and a photoelectric encoder. The spoke-type pressure sensor is threadedly connected to the symmetrical threaded screw in the clamping device and is placed side by side with the screw nut in the clamping device. The photoelectric encoder is threadedly connected to the support plate of the pushing device. The friction wheel of the photoelectric encoder rotates with the guide wheel of the pushing device to detect information such as cable pushing speed and laying length.

[0037] The fixing device 34 includes a support base 341, a support rod 342, and a rubber base 343. The support base 341 is threadedly connected to the pusher frame; one end of the support rod 342 is threadedly fixed to the support base 341, and the other end is fixed to the rubber base 343; when the cable is laid in a conduit in the well, the rubber side of the rubber base 343 is pressed against the inner wall of the cable well. A schematic diagram of the fixing device 34 is shown below. Figure 8 As shown.

[0038] The monitoring device 4 comprises four parts: an information acquisition module, a display module, a communication module, and an intelligent control module. The information acquisition module consists of a detection device and related conversion circuits. The control flowchart of the monitoring device is shown below. Figure 9 As shown. The relevant conversion circuit of the information acquisition module is as follows. Figure 10 The display module includes two display columns: operating parameters and running parameters. The running parameters column displays the cable and control parameters uniformly sent by the coordination control terminal. The operating parameters column displays the current working status of the cable pusher. When slippage is detected, the green indicator light next to the slippage monitor turns red and flashes, and the event is simultaneously uploaded to the coordination control terminal. A schematic diagram of the display module is shown below. Figure 11 As shown; the communication module adopts a LoRa wireless communication module and supports the LoRaWAN communication protocol; the intelligent control module is a control algorithm built into the monitoring device. Since the cable pushing lengths of each cable pusher put into operation in series are different, the preset clamping force may not be sufficient to generate enough pushing force, causing the cable to "slip" during the pushing process. Once the system detects the "slip" phenomenon, the control module will start the clamping motor to clamp the cable with a preset clamping force increment until the "slip" phenomenon is eliminated.

[0039] The terms “center,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0042] The multi-machine linkage cable laying machine provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A multi-machine linkage cable laying machine suitable for cable laying in cable wells, comprising four parts: a transport vehicle, a lifting device, a pusher, and a monitoring device; characterized in that, The transport vehicle serves as the transfer and support device for the cable laying machine, coordinating with the lifting device to achieve cable laying both inside and above the cable well. The lifting device raises and lowers the pusher into the cable well and aligns it with the laying pipe to lay the cable inside the well, or raises the pusher onto the transport vehicle to lay the cable on the ground. The pusher clamps the cable with a certain pre-tightening force according to different cable types, and the cable is pushed and laid by the friction between the cable and the rubber track of the pusher. The monitoring device monitors, displays, and optimizes the cable laying parameters in real time, and transmits the operating parameters to the coordination control terminal, which then performs unified optimization of the operating parameters of each laying machine. The monitoring device comprises four parts: an information acquisition module, a display module, a communication module, and an intelligent control module. The information acquisition module consists of a detection device and related conversion circuits. The display module includes two display columns: operating parameters and running parameters. The running parameters column displays cable and control parameters uniformly sent by the coordination control terminal, while the operating parameters column displays the current working status of the cable pusher. When slippage is detected, the green indicator light next to the slippage detection turns red and flashes, and the slippage phenomenon is simultaneously uploaded to the coordination control terminal. The communication module uses a LoRa wireless communication module and supports the LoRaWAN communication protocol. The intelligent control module uses a built-in control algorithm in the monitoring device. Since each cable pusher in series has a different cable length, the preset clamping force may not be sufficient to generate enough pushing force, causing the cable to slip during the pushing process. Once the system detects slippage, the control module will start the clamping motor to clamp the cable with a preset clamping force increment until the slippage is eliminated. The transport vehicle is equipped with a pusher fixing device; the lifting device includes a lifting motor, a rope guide, a hook, and a support frame; the support frame is fixed to the lifting device by a threaded connection; the lifting motor drives the rope guide to rotate through an output shaft; the hook is hung on the end of the wire rope of the rope guide.

2. The multi-machine linkage cable laying machine for cable laying in cable wells according to claim 1, characterized in that, The multi-machine linkage cable laying machine is suitable for two working modes: cable laying in well conduit and cable laying on the ground. In the cable laying mode in well conduit, the lifting device lowers the pusher into the cable well and aligns it with the laying pipe to realize cable laying in the cable well. In the ground cable laying operation mode, the pusher is lifted onto the transport vehicle by a lifting device to realize the ground cable laying.

3. The multi-machine linkage cable laying machine for cable laying in cable wells according to claim 1, characterized in that, When the cable laying machine is in ground operation mode, the pusher fixing device counteracts the cable pushing reaction force on the transport vehicle; when transporting the cable laying machine, the pusher fixing device ensures that the pusher will not move relative to the transport vehicle, thus ensuring transportation safety.

4. The multi-machine linkage cable laying machine for cable laying in cable wells according to claim 1, characterized in that, The pusher includes a pushing device, a clamping device, a detection device, and a fixing device; the pushing device and the clamping device are fixed by a flange threaded connection; the clamping device and the fixing device are connected by bolts; the detection device is arranged in the pushing device and the clamping device; the pusher is arranged vertically to facilitate the removal of the cable from the side.

5. The multi-machine linkage cable laying machine for cable laying in cable wells according to claim 4, characterized in that, The pushing device includes a pushing motor, a pushing device reducer, a power transmission mechanism, a pushing belt, an guide wheel, and a support plate. The pushing motor is connected to the pushing device reducer via a coupling. The pushing device reducer is connected to the power transmission mechanism via a key. The power transmission mechanism consists of a pair of transmission gears with a transmission ratio of 1:4, which are connected to the pushing belt sprocket via a key. The pushing belt has a double-row chain structure and a tightening screw is arranged inside, which is installed inside the pushing belt via a shaft hole. The guide wheel is fixed to the shaft of the support plate via a bearing.

6. The multi-machine linkage cable laying machine for cable laying in cable wells according to claim 4, characterized in that, The clamping device includes a clamping motor, a clamping device reducer, a symmetrical threaded screw, and a screw nut; the clamping motor is connected to the clamping device reducer via a coupling; the clamping device reducer is connected to the symmetrical threaded screw via a coupling; the symmetrical threaded screw and the screw nut are connected by threads.

7. The multi-machine linkage cable laying machine for cable laying in cable wells according to claim 4, characterized in that, The detection device includes a spoke-type pressure sensor and a photoelectric encoder; the spoke-type pressure sensor is connected to the symmetrical threaded screw in the clamping device by a thread, and is placed side by side with the screw nut in the clamping device; the photoelectric encoder is connected to the support plate of the pushing device by a thread, and the friction wheel of the photoelectric encoder rotates by friction with the guide wheel of the pushing device to realize the detection of information such as cable pushing speed and laying length.

8. The multi-machine linkage cable laying machine for cable laying in cable wells according to claim 4, characterized in that, The fixing device includes a support base, a support rod, and a rubber base; the support base is connected to the pusher frame by a thread; one end of the support rod is fixed to the support base by a thread, and the other end is fixed to the rubber base; when the cable is laid in the well in a conduit, the rubber side of the rubber base is pressed against the inner wall of the cable well.

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