Power transmission line crossing stringing construction method

Abstract

The invention relates to the technical field of electric power stringing construction methods, in particular to a power transmission line crossing stringing construction method. The construction method comprises the following steps that before power transmission line crossing stringing construction, the position for parking a crane is designated on a construction site, and the rotary stringing construction crossing supporting device is installed on a suspension arm of the crane; commanding the crane to extend the lazy arm to a preset height and a preset position by a commander, and ensuring that the cable is positioned between the unfolded extension arms; the lifting support is driven to rotate through the rotating mechanism, the angle of the lifting support is adjusted through the lifting mechanism, then the position of the stretching arm is adjusted, the cable is folded to the target posture, and then related construction operation can be carried out. The method is used in the stringing construction process, a traditional spanning frame erecting construction mode is replaced, the site construction progress can be effectively accelerated, manpower, financial resources and time cost are saved, occupied construction area is reduced, construction risks and potential safety hazards are greatly reduced, construction flexibility is improved, and universality is high.

Description

Technical Field

[0001] The invention relates to the technical field of power line erection construction methods, in particular to a power transmission line spanning line erection construction method. Background Art

[0002] During the construction of transmission line stringing, especially when crossing roads and power lines, in order to better control the line position and ensure the smooth progress of the construction, it is usually necessary to set up a crossing frame at the relevant site and perform a network sealing operation. This process takes a long time and is costly. Moreover, the crossing frame is placed on both sides of the highway for a long time, which not only occupies a large area, but also poses a safety hazard, increasing the risk of construction. Therefore, it is urgent to provide a transmission line stringing construction method to replace the traditional construction method based on the erection of a crossing frame, simplify the transmission line stringing construction steps, reduce manpower, talent, and time costs, and improve construction safety. Summary of the invention

[0003] The purpose of the present invention is to provide a method for constructing a transmission line spanning cable, which replaces the traditional construction method of erecting a spanning frame, simplifies the construction process of the transmission line spanning cable, reduces manpower, talent and time costs, and improves construction safety.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A method for constructing a power transmission line spanning cable, wherein the construction is performed after the crane arm is connected to a rotating cable spanning support device, wherein the rotating cable spanning support device comprises a connecting bracket, a rotating bracket, a lifting bracket, an arm extension, a rotating mechanism and a lifting mechanism, wherein:

[0006] The connecting bracket comprises a connecting arm, and the connecting bracket and the crane are detachably connected via the connecting arm;

[0007] A rotating bracket is arranged above the connecting bracket, and a rotating mechanism capable of remote control is arranged between the connecting bracket and the rotating bracket, and the rotating mechanism drives the rotating bracket to rotate circumferentially above the connecting bracket;

[0008] The rotating bracket is hinged to one end of the lifting bracket, and a lifting mechanism that can be remotely controlled is provided between the rotating bracket and the lifting bracket, and the lifting mechanism drives the lifting bracket to lift around the hinged end based on the rotating bracket;

[0009] The lifting bracket is provided with a spreading arm, at least two spreading arms are provided, and the position adjustment of the lifting bracket by the rotating mechanism and the lifting mechanism is ultimately to adjust the position of the spreading arm;

[0010] The opening and closing of the rotating mechanism and the lifting mechanism are controlled by a remote control device, and the arm position can be adjusted after the device reaches the target position, which is more flexible than adjusting it on the ground and then lifting it to the target position.

[0011] The entire rotary wire construction spanning support device can be connected to the boom of the crane through a connecting bracket and can be moved by the crane.

[0012] The construction method includes the following steps:

[0013] Before the construction of the transmission line crossing, a designated location for parking the crane is set up on the construction site, and a rotating crossing support device for the transmission line crossing is installed on the crane's boom;

[0014] The commander instructs the crane to extend the boom to the predetermined height and position, ensuring that the cables are located between the extended booms;

[0015] The lifting bracket is driven to rotate by the rotating mechanism, and the angle of the lifting bracket is adjusted by the lifting mechanism, thereby adjusting the position of the extension arm, and the cables are gathered to the target posture, and relevant construction operations can be carried out.

[0016] Furthermore, the expansion arm is hinged to the lifting bracket, and a remotely controlled expansion arm adjustment mechanism is provided between the lifting bracket and the expansion arm. The construction method comprises the following steps:

[0017] Before the construction of the transmission line crossing, a designated location is set for the crane to be parked on the construction site, a rotating cross-over support device for the cross-over construction is installed on the crane boom, and the arm of the rotating cross-over support device for the cross-over construction is unfolded;

[0018] The commander instructs the crane to extend the boom to the predetermined height and position, ensuring that the cables are located between the extended booms;

[0019] The expansion angle between the expansion arms is adjusted through the ratio adjustment mechanism, the lifting bracket is driven to rotate through the rotating mechanism, the angle of the lifting bracket is adjusted through the lifting mechanism, and then the position of the expansion arms is adjusted, and the cables are gathered to the target posture, and relevant construction operations can be carried out.

[0020] Furthermore, the rotating mechanism is a rotating motor, the stator part of the rotating motor is installed on the connecting bracket, the rotor part of the rotating motor is installed on the rotating bracket, and the stator part of the rotating motor drives the rotor part to rotate, thereby driving the rotating bracket to rotate.

[0021] Furthermore, a rotation limiting mechanism is arranged between the rotating bracket and the lifting bracket. One of the rotating bracket and the lifting bracket is provided with a guide groove, and the other is provided with a guide column stuck in the guide groove. The guide column moves in the guide groove with the rotation action.

[0022] Furthermore, the lifting mechanism includes a first motor, a threaded rod and a threaded sleeve. The main body of the first motor is hinged to the lifting bracket. The output shaft of the first motor is connected to the threaded rod and can drive the threaded rod to rotate. The threaded sleeve is fixed to the rotating bracket. The threaded rod and the threaded sleeve are cooperatively connected. When the first motor is started, the threaded rod rotates. Since the position of the threaded sleeve is fixed, the threaded rod rises or falls along the threaded sleeve, thereby realizing the lifting of the lifting bracket.

[0023] Furthermore, the lifting mechanism may also adopt other structural forms, for example, including a first adjustable telescopic rod, one of the fixed end and the movable end of the first adjustable telescopic rod is hinged to the rotating bracket, and the other is hinged to the lifting bracket.

[0024] Furthermore, the arm extension adjustment mechanism includes a second adjustable telescopic rod, one of the fixed end and the movable end of the second adjustable telescopic rod is hinged to the arm extension, and the other is hinged to the lifting bracket.

[0025] Furthermore, the first adjustable telescopic rod and the second adjustable telescopic rod may be one of an electric telescopic rod, a cylinder, and a hydraulic rod.

[0026] Furthermore, the outer wall of the spread arm is connected with a spread arm roller via a bearing sleeve, and the spread arm roller contacts the cable to prevent the outer wall of the cable from being scratched and damaged.

[0027] Furthermore, a rolling shaft is provided on the lifting bracket between the extension arms, and the rolling shaft contacts the cable to prevent the outer wall of the cable from being scratched and damaged.

[0028] The beneficial effects of the present invention are as follows: compared with the prior art, the power transmission line crossing wire construction method of the present invention has the following advantages: it is used during the wire construction process, replacing the traditional construction method of setting up a crossing frame, can effectively improve the progress of on-site construction, save manpower, financial resources and time costs, reduce the construction area occupied, greatly reduce construction risks and safety hazards, improve construction flexibility, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of an embodiment of the present invention;

[0030] Figure 2 For the present invention Figure 1 A structural schematic diagram of another angle of the embodiment;

[0031] Figure 3 For the present invention Figure 1 A schematic diagram of a structure of a usage state related to an embodiment;

[0032] Figure 4 A schematic diagram of the structure of another embodiment of the present invention;

[0033] Figure 5For the present invention Figure 4 A structural schematic diagram of another angle of the embodiment;

[0034] Figure 6 For the present invention Figure 4 A schematic diagram of a structure of a usage state related to an embodiment;

[0035] Among them, 1 is a connecting bracket, 101 is a connecting arm, 2 is a rotating bracket, 3 is a lifting bracket, 4 is an extension arm, 5 is a rotating mechanism, 6 is a lifting mechanism, 601 is a first motor, 602 is a threaded rod, 603 is a threaded sleeve, 7 is an extension arm adjustment mechanism, 8 is an extension arm roller, and 9 is a rolling shaft. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] like Figure 1-3 In the embodiment shown, a method for constructing a power transmission line spanning cable is provided, wherein the crane arm is connected to a rotating cable spanning support device for construction, and then the construction is performed. The rotating cable spanning support device comprises a connecting support 1, a rotating support 2, a lifting support 3, an extension arm 4, a rotating mechanism 5 and a lifting mechanism 6, wherein:

[0038] The connecting bracket 1 comprises a connecting arm 101, and the connecting bracket 1 and the crane are detachably connected via the connecting arm 101;

[0039] A rotating bracket 2 is arranged above the connecting bracket 1, and a rotating mechanism 5 which can be remotely controlled is arranged between the connecting bracket 1 and the rotating bracket 2, and the rotating mechanism 5 drives the rotating bracket 2 to rotate circumferentially above the connecting bracket 1;

[0040] The rotating bracket 2 is hinged to one end of the lifting bracket 3, and a lifting mechanism 6 that can be remotely controlled is provided between the rotating bracket 2 and the lifting bracket 3, and the lifting mechanism 6 drives the lifting bracket 3 to lift around the hinged end based on the rotating bracket 2;

[0041] The lifting bracket 3 is provided with a spreading arm 4, and at least two spreading arms 4 are provided. The position adjustment of the lifting bracket 3 by the rotating mechanism 5 and the lifting mechanism 6 is ultimately for adjusting the position of the spreading arm 4;

[0042] The opening and closing of the rotating mechanism 5 and the lifting mechanism 6 are controlled by a remote control device, and the position of the arm 4 can be adjusted after the device reaches the target position, which is more flexible than adjusting it on the ground and then lifting it to the target position.

[0043] The entire rotary type wire construction spanning support device can be connected to the boom of a crane via the connecting bracket 1 and can be moved by the crane.

[0044] The construction method includes the following steps:

[0045] Before the construction of the transmission line crossing, a designated location for parking the crane is set up on the construction site, and a rotating crossing support device for the transmission line crossing is installed on the crane's boom;

[0046] The commanding personnel command the crane to extend the boom to a predetermined height and a predetermined position, ensuring that the cables are located between the unfolded booms 4;

[0047] The lifting bracket 3 is driven to rotate by the rotating mechanism 5, and the angle of the lifting bracket 3 is adjusted by the lifting mechanism 6, thereby adjusting the position of the extension arm 4, and the cables are gathered to the target posture, and relevant construction operations can be carried out.

[0048] like Figure 4-5 In the illustrated embodiment, the spreading arm 4 is hinged to the lifting bracket 3, and a spreading arm adjustment mechanism 7 capable of remote control is further provided between the lifting bracket 3 and the spreading arm 4. The construction method comprises the following steps:

[0049] Before the construction of the transmission line crossing, a position for parking the crane is designated on the construction site, a rotating cross-over support device for the cross-over construction of the transmission line is installed on the crane arm, and the arm 4 of the rotating cross-over support device for the cross-over construction of the transmission line is unfolded;

[0050] The commanding personnel command the crane to extend the boom to a predetermined height and a predetermined position, ensuring that the cables are located between the unfolded booms 4;

[0051] The expansion angle of the expansion arms 4 is adjusted through the proportion adjustment mechanism, the lifting bracket 3 is driven to rotate through the rotating mechanism 5, and the angle of the lifting bracket 3 is adjusted through the lifting mechanism 6, thereby adjusting the position of the expansion arms 4, and the cables are gathered to the target posture, and relevant construction operations can be carried out.

[0052] In some embodiments, the rotating mechanism 5 is a rotating motor, the stator part of the rotating motor is installed on the connecting bracket 1, and the rotor part of the rotating motor is installed on the rotating bracket 2. The stator part of the rotating motor drives the rotor part to rotate, thereby driving the rotating bracket 2 to rotate.

[0053] In some embodiments, a rotation limiting mechanism is provided between the rotating bracket 2 and the lifting bracket 3. One of the rotating bracket 2 and the lifting bracket 3 is provided with a guide groove, and the other is provided with a guide column stuck in the guide groove. The guide column moves in the guide groove with the rotation action.

[0054] In some embodiments, the lifting mechanism 6 includes a first motor 601, a threaded rod 602 and a threaded sleeve 603. The main body of the first motor 601 is hinged to the lifting bracket 3. The output shaft of the first motor 601 is connected to the threaded rod 602 and can drive the threaded rod 602 to rotate. The threaded sleeve 603 is fixed to the rotating bracket 2. The threaded rod 602 is cooperatively connected with the threaded sleeve 603. The first motor 601 is started and the threaded rod 602 rotates. Since the position of the threaded sleeve 603 is fixed, the threaded rod 602 rises or falls along the threaded sleeve 603, thereby realizing the lifting of the lifting bracket 3.

[0055] In other embodiments, the lifting mechanism 6 may also adopt other structural forms, for example, including a first adjustable telescopic rod, one of the fixed end and the movable end of the first adjustable telescopic rod is hinged to the rotating bracket 2, and the other is hinged to the lifting bracket 3.

[0056] In some embodiments, the arm extension adjustment mechanism 7 includes a second adjustable telescopic rod, one of a fixed end and a movable end of the second adjustable telescopic rod is hinged to the arm extension 4 , and the other end is hinged to the lifting bracket 3 .

[0057] In some embodiments, the first adjustable telescopic rod and the second adjustable telescopic rod can be one of an electric telescopic rod, a cylinder, and a hydraulic rod.

[0058] In some embodiments, the outer wall of the spread arm 4 is connected with a spread arm roller 8 via a bearing sleeve, and the spread arm roller 8 contacts the cable to prevent the outer wall of the cable from being scratched and damaged.

[0059] In some embodiments, a rolling shaft 9 is provided on the lifting bracket 3 between the extension arms 4, and the rolling shaft 9 contacts the cable to prevent the outer wall of the cable from being scratched and damaged.

[0060] The above-mentioned specific implementations are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific implementations. Any appropriate changes or modifications made to them by ordinary technicians in the technical field that conform to the claims of the present invention shall fall within the patent protection scope of the present invention.

Claims

1. A method for constructing a power transmission line spanning a line, characterized in that: The construction is carried out after the boom of the crane is connected to the rotating type wire-string construction spanning support device, wherein the rotating type wire-string construction spanning support device comprises a connecting bracket, a rotating bracket, a lifting bracket, an extension arm, a rotating mechanism and a lifting mechanism, wherein: A rotating bracket is arranged above the connecting bracket, and a rotating mechanism capable of remote control is arranged between the connecting bracket and the rotating bracket, and the rotating mechanism drives the rotating bracket to rotate circumferentially above the connecting bracket; The rotating bracket is hinged to one end of the lifting bracket, and a lifting mechanism that can be remotely controlled is provided between the rotating bracket and the lifting bracket, and the lifting mechanism drives the lifting bracket to lift around the hinged end based on the rotating bracket; The lifting bracket is provided with a spreading arm, and at least two spreading arms are provided; The construction method includes the following steps: Before the construction of the transmission line crossing, a designated location for the crane is set up on the construction site, and a rotating cross-over support device for the transmission line crossing is installed on the crane's boom; The commander instructs the crane to extend the boom to the predetermined height and position, ensuring that the cables are located between the extended booms; The lifting bracket is driven to rotate by the rotating mechanism, and the angle of the lifting bracket is adjusted by the lifting mechanism, thereby adjusting the position of the extension arm, and the cables are gathered to the target posture, and relevant construction operations can be carried out.

2. A method for constructing a power transmission line across a cable according to claim 1, characterized in that: The extension arm is hinged to the lifting bracket, and a remotely controlled extension arm adjustment mechanism is provided between the lifting bracket and the extension arm. The construction method comprises the following steps: Before the construction of the transmission line crossing, a designated location is set for the crane to be parked on the construction site, a rotating cross-over support device for the cross-over construction is installed on the crane boom, and the arm of the rotating cross-over support device for the cross-over construction is unfolded; The commander instructs the crane to extend the boom to the predetermined height and position, ensuring that the cables are located between the extended booms; The expansion angle between the expansion arms is adjusted through the ratio adjustment mechanism, the lifting bracket is driven to rotate through the rotating mechanism, the angle of the lifting bracket is adjusted through the lifting mechanism, and then the position of the expansion arms is adjusted, and the cables are gathered to the target posture, and relevant construction operations can be carried out.

3. A method for constructing a power transmission line across a cable according to claim 1, characterized in that: The connecting bracket comprises a connecting arm, and the connecting bracket and the crane are detachably connected via the connecting arm.

4. A method for constructing a power transmission line across a cable according to claim 1, characterized in that: The rotating mechanism is a rotating motor, the stator part of the rotating motor is installed on the connecting bracket, the rotor part of the rotating motor is installed on the rotating bracket, and the stator part of the rotating motor drives the rotor part to rotate, thereby driving the rotating bracket to rotate.

5. A method for constructing a power transmission line across a cable according to claim 1, characterized in that: The lifting mechanism includes a first motor, a threaded rod and a threaded sleeve. The main body of the first motor is hinged to the lifting bracket. The output shaft of the first motor is connected to the threaded rod and can drive the threaded rod to rotate. The threaded sleeve is fixed to the rotating bracket, and the threaded rod is cooperatively connected with the threaded sleeve.

6. A method for constructing a power transmission line across a line according to claim 1, characterized in that: The lifting mechanism comprises a first adjustable telescopic rod, one of a fixed end and a movable end of the first adjustable telescopic rod is hinged to the rotating bracket, and the other end is hinged to the lifting bracket.

7. A method for constructing a power transmission line across a line according to claim 1, characterized in that: The arm extension adjustment mechanism comprises a second adjustable telescopic rod, one of a fixed end and a movable end of the second adjustable telescopic rod is hinged to the arm extension, and the other end is hinged to the lifting bracket.

8. A method for constructing a power transmission line across a cable according to claim 1, characterized in that: The outer wall of the spreading arm is sleeved with a spreading arm rotating roller via a bearing.

9. A method for constructing a power transmission line across a cable according to claim 1, characterized in that: A rolling shaft is arranged on the lifting bracket between the extension arms.

10. A method for constructing a power transmission line across a cable according to claim 1, characterized in that: A rotation limiting mechanism can be arranged between the rotating bracket and the lifting bracket. One of the rotating bracket and the lifting bracket is provided with a guide groove, and the other is provided with a guide column stuck in the guide groove. The guide column moves in the guide groove with the rotation action.

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