An intelligent control device for main cable of cable hoisting and its implementation method

Abstract

This invention discloses an intelligent control device for the main cable of a cable hoisting installation and its implementation method. During cable hoisting construction, a wireless displacement sensor on the tower-top traverse trolley and a wireless strain sensor on the main cable transmit relevant data to a central processing unit. The central processing unit then controls a low-speed motor to drive an adjustable pull rod to apply wedge-shaped adjustment pads to adjust the profiled backing plate, thereby completing the main cable adjustment. Compared to traditional processes that use wooden planks behind arc-shaped concrete, this invention eliminates the need for manual control and can complete the work with high precision and efficiency, thereby accelerating construction progress.

Description

Technical Field

[0001] The present invention relates to the technical field of beam steel tube arch bridge construction, and in particular to an intelligent control device for a cable hoisting main cable and an implementation method thereof. Background Art

[0002] In recent years, my country's highway infrastructure has developed rapidly. Due to the influence of topography and geology, long-span bridges have gradually come into play. The construction of steel tube arch bridges adopts a prefabricated hoisting method and utilizes a cable hoisting system. Because the main cables are fixed at both ends to the main ground anchors, the position of the traverse trolley on the tower and the lifting weight vary during the hoisting process, resulting in varying degrees of cable deflection. Currently, most methods use wooden blocks supported behind the curved concrete anchors. This is difficult to operate, can damage the steel cables, and is time-consuming and labor-intensive. Summary of the Invention

[0003] The present invention aims to provide an intelligent control device for the main cable of a cable hoisting installation and its implementation method. The intelligent control device for the main cable of a cable hoisting installation according to the present invention can be used to control the main cable without manual control, and can complete the work with high precision and high efficiency, thereby accelerating the construction progress. The technical solutions adopted by the present invention are as follows:

[0004] According to one aspect of the present invention, an intelligent control device for a main cable of a cable hoisting installation and an implementation method thereof are provided, wherein the intelligent control device comprises:

[0005] Controller;

[0006] a sensor assembly, the sensor assembly being provided on the cable hoisting system and connected to the controller;

[0007] A drive assembly, the drive assembly being provided on the cable hoisting system and connected to the controller;

[0008] An adjusting component is provided on the cable hoisting system, and the adjusting component is connected to the driving component.

[0009] Preferably, the cable hoisting system comprises:

[0010] tower;

[0011] A transverse trolley, the transverse trolley being arranged at the upper end of the tower;

[0012] A main ground anchor is connected to the tower through a cable.

[0013] Preferably, the sensor assembly comprises:

[0014] A displacement sensor, the displacement sensor being provided on the transverse trolley and connected to the controller;

[0015] A strain sensor is provided on the cable and is connected to the controller.

[0016] Preferably, the drive assembly includes:

[0017] A low-speed motor, wherein the low-speed motor is provided in plurality and the plurality of low-speed motors are spaced apart and arranged on the main ground anchor;

[0018] An adjustable pull rod is connected to the low-speed motor.

[0019] Preferably, the adjustment component includes:

[0020] A special-shaped bottom plate, the special-shaped bottom plate is arranged on the main ground anchor;

[0021] A special-shaped back plate, the special-shaped back plate is arranged on the special-shaped bottom plate;

[0022] An adjustable wedge-shaped pad assembly is provided, wherein the adjustable wedge-shaped pad assembly is provided in plurality, and the plurality of adjustable wedge-shaped pad assemblies are provided between the special-shaped bottom plate and the special-shaped back plate.

[0023] Preferably, the adjustable wedge-shaped spacer assembly comprises:

[0024] a first wedge-shaped spacer, wherein the adjustable pull rod passes through the first wedge-shaped spacer and is threadedly connected to the first wedge-shaped spacer;

[0025] A second wedge-shaped pad is connected to an end of the adjustable pull rod away from the low-speed motor.

[0026] Preferably, the special-shaped bottom plate is arranged in an arc shape, and a plurality of slots are provided on the outer side of the special-shaped bottom plate. The slots are arranged along the width direction of the special-shaped bottom plate, and the plurality of slots are arranged along the curvature direction of the special-shaped bottom plate.

[0027] Preferably, the special-shaped back plate is arranged in an arc shape, the inner side of the special-shaped back plate is provided with a protrusion corresponding to the card slot, and the outer side of the special-shaped back plate is provided with a groove for preventing cable slippage along the arc direction of the special-shaped back plate.

[0028] Preferably, a method for implementing an intelligent control device for a main cable of a cable hoisting installation comprises the following steps:

[0029] (1) Processing and assembly of components: After processing the components in the factory, they are transported to the construction site for assembly;

[0030] (2) Sensor assembly installation: Install the displacement sensor on the traverse trolley at the top of the tower, and the strain sensor on the main cable;

[0031] (3) Installation of the control device: fix the special-shaped bottom plate to the main ground anchor arc-shaped concrete, install the special-shaped back plate on the special-shaped bottom plate, insert the main cable into the groove of the special-shaped back plate, install the adjustable wedge-shaped pad between the special-shaped bottom plate and the special-shaped back plate, insert the adjustable pull rod into the adjustable wedge-shaped pad, then install the low-speed motor, insert the low-speed motor into the adjustable pull rod, fix the low-speed motor on the main ground anchor arc-shaped concrete, add lubricating oil to the relative sliding parts between the special-shaped bottom plate, the special-shaped back plate and the adjustable wedge-shaped pad, connect the low-speed motor to the controller with a cable, and then connect the controller to the power supply;

[0032] (4) Control of the main cable: Turn on the power, turn on the controller, and input relevant parameters. The controller automatically controls the low-speed motor based on the signals from the displacement sensor and strain sensor.

[0033] The above technical solution adopted by the present invention has the following significant effects:

[0034] (1) During cable hoisting construction, the present invention transmits relevant data to the controller via the wireless displacement sensor on the tower top traverse trolley and the wireless strain sensor on the main cable. The controller then controls the low-speed motor to drive the adjustable pull rod to adjust the wedge-shaped adjustment pad to adjust the special-shaped back plate, thereby completing the adjustment of the main cable. Compared with the traditional process of supporting wooden blocks behind the arc-shaped concrete, the present invention does not require manual control and can complete the work with high precision and high efficiency, thereby accelerating the construction progress.

[0035] (2) The intelligent control device for the main cable of the cable hoisting can be reused, with low equipment depreciation rate, high turnover rate, and green environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic diagram of the application structure of the present invention;

[0037] Figure 2 1-1 is a structural diagram;

[0038] Figure 3 1-2 is a structural diagram;

[0039] Figure 4 1-3 is a schematic diagram of the structure;

[0040] Figure 5 Schematic diagram of the structure of the special-shaped backplane;

[0041] Figure 6 Schematic diagram of the structure of the special-shaped bottom plate;

[0042] Figure 7 Schematic diagram of the anatomy of the control device;

[0043] Figure 8 Schematic diagram of the structure of the main ground anchor.

[0044] 1-tower, 2-transverse trolley, 3-main ground anchor, 4-cable, 5-controller, 6-displacement sensor, 7-strain sensor, 8-low-speed motor, 9-adjustable pull rod, 10-special-shaped bottom plate, 11-special-shaped back plate, 12-first wedge-shaped pad, 13-second wedge-shaped pad. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and by way of preferred embodiments. However, it should be noted that many of the details listed in this specification are merely provided to help the reader gain a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be practiced even without these specific details.

[0046] like Figure 1-8 As shown, according to the present invention, an intelligent control device for the main cable of a cable hoisting is installed on a cable hoisting system. The cable hoisting system includes a tower 1, a transverse trolley 2 and a main ground anchor 3. The transverse trolley 2 is arranged at the upper end of the tower 1. The main ground anchor 3 is connected to the tower 1 through a cable 4. There is a cable groove on the arc-shaped surface concrete on the main ground anchor 3. Part of the cable 4 is wrapped in the cable groove on the arc-shaped surface concrete on the main ground anchor 3. After the cable 4 is wrapped, it does not protrude above the concrete surface.

[0047] The intelligent control device includes a controller 5, a sensor assembly, a drive assembly, and an adjustment assembly. The controller 5 can receive wireless signals from the sensor assembly and perform data processing. The sensor assembly includes a displacement sensor 6 and a strain sensor 7. The displacement sensor 6 is installed on the traverse trolley 2 and is wirelessly connected to the controller 5. The strain sensor 7 is installed on the main load-bearing cable 4 and is wirelessly connected to the controller 5. The data measured by the displacement sensor 6 and the strain sensor 7 is transmitted via wireless signals. After receiving the wireless signals, the controller 5 processes the data and controls the drive assembly.

[0048] The drive assembly includes a low-speed motor 8 and an adjustable pull rod 9. Multiple low-speed motors 8 are provided, spaced apart on the arc-shaped concrete surface of the main ground anchor 3. These motors can be bolted or welded to the main ground anchor 3 using pre-buried bolts or steel plates, and are arranged along the arc of the concrete surface. The adjustable pull rod 9 is connected to the low-speed motor 8 and has threads on its surface. The adjustable pull rod 9 passes through the low-speed motor 8, driving the low-speed motor 8 to rotate. A steel plate is welded to the end of the adjustable pull rod 9 away from the low-speed motor 8 to limit the movement of the adjustment assembly.

[0049] The adjustment assembly includes a special-shaped base plate 10, a special-shaped back plate 11, and an adjustable wedge-shaped spacer assembly. The special-shaped base plate 10 is arranged in an arc shape. The outer side of the special-shaped base plate 10 is provided with multiple slots. The slots are arranged along the width direction of the special-shaped base plate 10. The slots are arranged along the curvature direction of the special-shaped base plate 10. The special-shaped base plate 10 is attached to the arc-shaped concrete surface of the main ground anchor 3. The special-shaped base plate 10 can be divided into multiple pieces and assembled by welding on site. The special-shaped back plate 11 is arranged on the special-shaped base plate 10. The special-shaped back plate 11 is arranged in an arc shape. The inner side of the special-shaped back plate 11 has protrusions corresponding to the slots. The outer side of the special-shaped back plate 11 has grooves along the curvature direction of the special-shaped back plate 11 to prevent the cable 4 from slipping. The special-shaped back plate 11 is thick in the middle and thin at the two ends. The back side has a groove to prevent the cable from slipping. The position of the special-shaped back plate 11 is adjusted by the adjustable wedge-shaped spacer.

[0050] There are multiple adjustable wedge-shaped pad assemblies, which are arranged between the special-shaped bottom plate 10 and the special-shaped back plate 11. The adjustable wedge-shaped pad assembly includes a first wedge-shaped pad 12 and a second wedge-shaped pad 13. The adjustable pull rod 9 passes through the first wedge-shaped pad 12 and is threadedly connected to the first wedge-shaped pad 12. The second wedge-shaped pad 13 is connected to the end of the adjustable pull rod 9 away from the low-speed motor 8. The adjustable wedge-shaped pad assembly is installed between the special-shaped bottom plate 10 and the special-shaped back plate 11 and is passed through by the adjustable pull rod 9. The inner side of the hole of the first wedge-shaped pad 12 on the side close to the low-speed motor 8 has threads and is controlled by the adjustable pull rod 9 through the threads. The inner side of the hole of the second wedge-shaped pad 13 on the side away from the low-speed motor 8 has no threads. The position of the adjustable wedge-shaped pad is limited by the steel plate welded to the end of the adjustable pull rod 9.

[0051] The required contact points between the adjustable tie rod 9, the shaped base plate 10, the shaped back plate 11, and the adjustable wedge-shaped spacer assembly are smooth and lubricated. Wireless signals are transmitted via the displacement sensor 6 on the traversing trolley 2 atop the tower 1 and the strain sensor 7 on the main cable. The controller 5 receives and processes the signals on the ground, controlling the low-speed motor 8 to drive the adjustable tie rod, further controlling the position of the adjustable wedge-shaped spacer assembly and the shaped back plate 12, thereby completing the adjustment of the main cable.

[0052] The implementation method of the cable hoisting main cable intelligent control device of the present invention includes the following steps:

[0053] (1) Processing and assembly of components: After processing the components in the factory, they are transported to the construction site for assembly;

[0054] (2) Sensor assembly installation: Install the displacement sensor on the traverse trolley at the top of the tower, and the strain sensor on the main cable;

[0055] (3) Installation of the control device: fix the special-shaped bottom plate to the main ground anchor arc-shaped concrete, install the special-shaped back plate on the special-shaped bottom plate, insert the main cable into the groove of the special-shaped back plate, install the adjustable wedge-shaped pad between the special-shaped bottom plate and the special-shaped back plate, insert the adjustable pull rod into the adjustable wedge-shaped pad, then install the low-speed motor, insert the low-speed motor into the adjustable pull rod, fix the low-speed motor on the main ground anchor arc-shaped concrete, add lubricating oil to the relative sliding parts between the special-shaped bottom plate, the special-shaped back plate and the adjustable wedge-shaped pad, connect the low-speed motor to the controller with a cable, and then connect the controller to the power supply;

[0056] (4) Control of the main cable: Turn on the power, turn on the controller, and input relevant parameters. The controller automatically controls the low-speed motor based on the signals from the displacement sensor and strain sensor.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An intelligent control device for the main cable of a cable hoisting system, provided on the cable hoisting system, characterized in that: The intelligent control device includes: Controller; a sensor assembly, the sensor assembly being provided on the cable hoisting system and connected to the controller; A drive assembly, the drive assembly being provided on the cable hoisting system and connected to the controller; an adjusting assembly, the adjusting assembly being provided on the cable hoisting system and connected to the driving assembly; Wherein, the cable hoisting system includes: tower; A transverse trolley, the transverse trolley being arranged at the upper end of the tower; a main ground anchor connected to the tower via a cable; The drive assembly includes: A low-speed motor, wherein the low-speed motor is provided in plurality and the plurality of low-speed motors are spaced apart and arranged on the main ground anchor; an adjustable pull rod connected to the low-speed motor; The adjustment component includes: A special-shaped bottom plate, the special-shaped bottom plate is arranged on the main ground anchor; A special-shaped back plate, the special-shaped back plate is arranged on the special-shaped bottom plate; An adjustable wedge-shaped pad assembly, wherein the adjustable wedge-shaped pad assembly is provided in plurality, and the plurality of adjustable wedge-shaped pad assemblies are provided between the special-shaped bottom plate and the special-shaped back plate; The adjustable wedge-shaped spacer assembly comprises: a first wedge-shaped spacer, wherein the adjustable pull rod passes through the first wedge-shaped spacer and is threadedly connected to the first wedge-shaped spacer; a second wedge-shaped pad connected to an end of the adjustable pull rod away from the low-speed motor; The special-shaped bottom plate is arranged in an arc shape, and a plurality of slots are provided on the outer side of the special-shaped bottom plate. The slots are arranged along the width direction of the special-shaped bottom plate, and the plurality of slots are arranged along the arc direction of the special-shaped bottom plate; The special-shaped back plate is arranged in an arc shape, the inner side of the special-shaped back plate is provided with a protrusion corresponding to the card slot, and the outer side of the special-shaped back plate is provided with a groove for preventing cable slippage along the arc direction of the special-shaped back plate.

2. The intelligent control device for main cables of cable hoisting according to claim 1, characterized in that: The sensor assembly comprises: A displacement sensor, the displacement sensor being provided on the transverse trolley and connected to the controller; A strain sensor is provided on the cable and is connected to the controller.

3. A method for implementing the intelligent control device for main cables of cable hoisting according to claim 2, characterized in that: The following steps are involved: (1) Processing and assembly of components: After processing the components in the factory, they are transported to the construction site for assembly; (2) Sensor assembly installation: Install the displacement sensor on the traverse trolley at the top of the tower, and the strain sensor on the main cable; (3) Installation of the control device: fix the special-shaped bottom plate to the main ground anchor arc-shaped concrete, install the special-shaped back plate on the special-shaped bottom plate, insert the main cable into the groove of the special-shaped back plate, install the adjustable wedge-shaped pad between the special-shaped bottom plate and the special-shaped back plate, insert the adjustable pull rod into the adjustable wedge-shaped pad, then install the low-speed motor, insert the low-speed motor into the adjustable pull rod, fix the low-speed motor on the main ground anchor arc-shaped concrete, add lubricating oil to the relative sliding parts between the special-shaped bottom plate, the special-shaped back plate and the adjustable wedge-shaped pad, connect the low-speed motor to the controller with a cable, and then connect the controller to the power supply; (4) Control of the main cable: Turn on the power, turn on the controller, and input relevant parameters. The controller automatically controls the low-speed motor based on the signals from the displacement sensor and strain sensor.

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