Construction method of transmission line crossing frame

Abstract

The present application relates to the technical field of power stringing construction method, especially a power transmission line crossing stringing construction method. The construction method comprises the following steps: before the power transmission line crossing stringing construction, a position for parking a crane is specified on the construction site, a rotary stringing construction crossing support device is installed on the jib of the crane; a commander directs the crane to extend the jib to a predetermined height and a predetermined position, and ensures that the cable is located between the unfolded spread arms; the lifting support is rotated through a rotating mechanism, the angle of the lifting support is adjusted through a lifting mechanism, and then the position of the spread arm is adjusted, the cable is folded to the target posture, and then the relevant construction operation can be unfolded. The present application is used in the stringing construction process, replaces the traditional erection of crossing frame construction method, can effectively improve the on-site construction progress, saves manpower, financial resources and time cost, reduces the occupation of construction area, greatly reduces the construction risk and safety hidden danger, improves the construction flexibility, and has strong universality.

Description

Technical Field

[0001] This invention relates to the technical field of power line construction methods, and in particular to a method for constructing power transmission line crossings. Background Technology

[0002] During the construction of power transmission lines, especially when crossing highways or power lines, it is usually necessary to erect crossing frames and install safety netting at relevant sites to effectively control the line's position and ensure smooth construction. This process is time-consuming and costly. Furthermore, the crossing frames, placed on both sides of the highway for extended periods, not only occupy a large area but also pose safety hazards, increasing construction risks. Therefore, there is an urgent need to provide a new method for constructing power transmission lines crossing highways, replacing the traditional method based on crossing frame erection, simplifying the construction steps, reducing labor, material, and time costs, and improving construction safety. Summary of the Invention

[0003] The purpose of this invention is to provide a method for constructing power transmission line crossings, which replaces the traditional method of erecting crossing frames, simplifies the power transmission line construction process, reduces manpower, labor, and time costs, and improves construction safety.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A method for constructing a power transmission line crossing involves connecting the boom of a crane to a rotating overhead line crossing support device. The rotating overhead line crossing support device includes a connecting bracket, a rotating bracket, a lifting bracket, an extended boom, a rotating mechanism, and a lifting mechanism, wherein:

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

[0007] A rotating bracket is provided above the connecting bracket, and a remotely controllable rotating mechanism is provided between the connecting bracket and the rotating bracket. 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. The lifting mechanism drives the lifting bracket to lift around the hinged end based on the rotating bracket.

[0009] The lifting support is equipped with extension arms, and at least two extension arms are provided. The position adjustment of the lifting support by the rotation mechanism and the lifting mechanism is ultimately to adjust the position of the two extension arms.

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

[0011] The entire rotating overhead line construction crossing support device can be connected to the boom of a crane via a connecting bracket and 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 support device for the crossing is installed on the crane's boom.

[0014] The operator directs the crane to extend the boom to the predetermined height and position, ensuring that the cables are positioned between the extended booms;

[0015] The lifting support is rotated by a rotating mechanism, and the angle of the lifting support is adjusted by the lifting mechanism, thereby adjusting the position of the extension arm and retracting the cable to the target position, so that the relevant construction operations can be carried out.

[0016] Furthermore, the boom is hinged to the lifting support, and a remotely controlled boom adjustment mechanism is provided between the lifting support and the boom. The construction method includes the following steps:

[0017] Before the construction of the transmission line crossing the overhead line, a location for parking the crane is designated on the construction site. A rotating overhead line crossing support device is installed on the crane's boom, and the boom of the rotating overhead line crossing support device is extended.

[0018] The operator directs the crane to extend the boom to the predetermined height and position, ensuring that the cables are positioned between the extended booms;

[0019] The deployment angle between the arms is adjusted by the proportion adjustment mechanism, the lifting support is rotated by the rotation mechanism, and the angle of the lifting support is adjusted by the lifting mechanism, thereby adjusting the position of the arms and retracting the cable to the target posture, so that the relevant construction operations can be carried out.

[0020] Furthermore, the rotating mechanism is a rotary motor, with the stator of the rotary motor mounted on the connecting bracket and the rotor of the rotary motor mounted on the rotating bracket. The stator of the rotary motor drives the rotor to rotate, thereby causing the rotating bracket to rotate.

[0021] Furthermore, a rotation limiting mechanism is provided 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 post that is stuck in the guide groove. The guide post moves in the guide groove as the rotation is performed.

[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 connected in cooperation. 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 can also adopt other structural forms, such as including a first adjustable telescopic rod, one of the fixed end and the movable end of the first adjustable telescopic rod being hinged to the rotating bracket, and the other being hinged to the lifting bracket.

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

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

[0026] Furthermore, the outer wall of the boom is fitted with a boom roller via a bearing sleeve. The boom roller contacts the cable to prevent scratches and damage to the outer wall of the cable.

[0027] Furthermore, a rolling shaft is provided on the lifting bracket between the arms, which contacts the cable to prevent scratches and damage to the outer wall of the cable.

[0028] The beneficial effects of the present invention are as follows: Compared with the prior art, the transmission line crossing and overhead line construction method of the present invention has the following advantages: It is used in the overhead line construction process, replacing the traditional method of erecting crossing frames, which can effectively improve the on-site construction progress, save manpower, financial resources and time costs, reduce the occupation of construction area, greatly reduce construction risks and safety hazards, improve construction flexibility, and has strong versatility. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a structure in one embodiment of the present invention;

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

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

[0032] Figure 4 This is a schematic diagram of the structure in another embodiment of the present invention;

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

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

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

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] like Figure 1-3 In the illustrated embodiment, a method for constructing a power transmission line crossing involves connecting the boom of a crane to a rotating overhead line construction crossing support device. The rotating overhead line construction crossing support device includes a connecting bracket 1, a rotating bracket 2, a lifting bracket 3, an extension boom 4, a rotating mechanism 5, and a lifting mechanism 6, wherein:

[0038] The connecting bracket 1 includes a connecting arm 101, and the connecting bracket 1 is detachably connected to the crane via the connecting arm 101.

[0039] A rotating bracket 2 is provided above the connecting bracket 1, and a rotating mechanism 5 that can be remotely controlled is provided between the connecting bracket 1 and the rotating bracket 2. 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. A lifting mechanism 6 that can be remotely controlled is provided between the rotating bracket 2 and the lifting bracket 3. 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 extension arms 4, and at least two extension arms 4 are provided. The position adjustment of the lifting bracket 3 by the rotating mechanism 5 and the lifting mechanism 6 is ultimately to adjust the position of the two extension arms 4.

[0042] The opening and closing of the rotating mechanism 5 and the lifting mechanism 6 are controlled by a remote control device, which allows for adjustment of the position of the extended arm 4 after the device reaches the target position, making it more flexible than adjusting it on the ground first and then lifting it to the target position.

[0043] The entire rotating overhead line construction crossing support device can be connected to the boom of the crane via the connecting bracket 1 and 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 support device for the crossing is installed on the crane's boom.

[0046] The operator directs the crane to extend the boom to the predetermined height and position, ensuring that the cables are positioned between the extended booms 4;

[0047] The lifting support 3 is rotated by the rotating mechanism 5, and the angle of the lifting support 3 is adjusted by the lifting mechanism 6, thereby adjusting the position of the extension arm 4 and retracting the cable to the target posture, so that the relevant construction operations can be carried out.

[0048] like Figure 4-5 In the illustrated embodiment, the boom 4 is hinged to the lifting bracket 3, and a remotely controlled boom adjustment mechanism 7 is also provided between the lifting bracket 3 and the boom 4. The construction method includes the following steps:

[0049] Before the construction of the transmission line crossing the overhead line, a location for parking the crane is designated on the construction site. A rotating overhead line crossing support device is installed on the crane boom, and the boom 4 of the rotating overhead line crossing support device is extended.

[0050] The operator directs the crane to extend the boom to the predetermined height and position, ensuring that the cables are positioned between the extended booms 4;

[0051] The extension angle between the arms 4 is adjusted by the proportion adjustment mechanism, the lifting bracket 3 is rotated by the rotation mechanism 5, and the angle of the lifting bracket 3 is adjusted by the lifting mechanism 6, thereby adjusting the position of the arms 4 and retracting the cable to the target posture, so that the relevant construction operations can be carried out.

[0052] In some embodiments, the rotating mechanism 5 is a rotary motor, the stator of which is mounted on the connecting bracket 1, and the rotor of which is mounted on the rotating bracket 2. The stator of the rotary motor drives the rotor to rotate, thereby causing 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 post that is locked in the guide groove. The guide post moves in the guide groove as the rotation is performed.

[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 and the threaded sleeve 603 are connected in cooperation. When the first motor 601 is started, 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, such as including a first adjustable telescopic rod, one of the fixed end and the movable end of the first adjustable telescopic rod being hinged to the rotating bracket 2, and the other being hinged to the lifting bracket 3.

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

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

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

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

[0060] The above-described specific embodiments are merely specific examples 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-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of the present invention should fall within the patent protection scope of the present invention.

Claims

1. A method for constructing overhead power transmission lines crossing over power lines, characterized in that: Construction is carried out after the crane boom is connected to the rotary overhead line construction crossing support device. The rotary overhead line construction crossing support device includes a connecting bracket, a rotating bracket, a lifting bracket, an extended boom, a rotating mechanism, and a lifting mechanism, wherein: A rotating bracket is provided above the connecting bracket, and a remotely controllable rotating mechanism is provided between the connecting bracket and the rotating bracket. 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. The lifting mechanism drives the lifting bracket to lift around the hinged end based on the rotating bracket. The lifting support is equipped with extension arms, and at least two extension arms are provided. The construction method includes the following steps: 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 support device for the crossing is installed on the crane's boom. The operator directs the crane to extend the boom to the predetermined height and position, ensuring that the cables are positioned between the extended booms; The lifting support is rotated by a rotating mechanism, and the angle of the lifting support is adjusted by the lifting mechanism. In turn, the position of the boom is adjusted, the cable is gathered to the target position, and the relevant construction operations can be carried out. 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 and the threaded sleeve are connected in a cooperative manner. The lifting mechanism includes a first adjustable telescopic rod, one of which is hinged to a rotating bracket and the other to a lifting bracket.

2. The method for constructing a power transmission line crossing overhead line according to claim 1, characterized in that: The boom is hinged to the lifting support, and a remotely controlled boom adjustment mechanism is also provided between the lifting support and the boom. The construction method includes the following steps: Before the construction of the transmission line crossing the overhead line, a location for parking the crane is designated on the construction site. A rotating overhead line crossing support device is installed on the crane's boom, and the boom of the rotating overhead line crossing support device is extended. The operator directs the crane to extend the boom to the predetermined height and position, ensuring that the cables are positioned between the extended booms; The deployment angle between the arms is adjusted by the proportion adjustment mechanism, the lifting support is rotated by the rotation mechanism, and the angle of the lifting support is adjusted by the lifting mechanism, thereby adjusting the position of the arms and retracting the cable to the target posture, so that the relevant construction operations can be carried out.

3. The method for constructing a power transmission line crossing overhead line according to claim 1, characterized in that: The connecting bracket includes a connecting arm, and the connection between the bracket and the crane is detachably connected via the connecting arm.

4. The method for constructing a power transmission line crossing overhead line according to claim 1, characterized in that: The rotating mechanism is a rotary motor. The stator of the rotary motor is mounted on the connecting bracket, and the rotor of the rotary motor is mounted on the rotating bracket. The stator of the rotary motor drives the rotor to rotate, thereby causing the rotating bracket to rotate.

5. The method for constructing a power transmission line crossing overhead line according to claim 2, characterized in that: The arm adjustment mechanism includes a second adjustable telescopic rod, one of which is hinged to the arm and the other to the lifting bracket.

6. The method for constructing a transmission line crossing overhead line according to claim 1, characterized in that: The outer wall of the boom is fitted with boom rollers via bearings.

7. The method for constructing a power transmission line crossing overhead line according to claim 1, characterized in that: A rolling shaft is provided on the lifting bracket between the arms.

8. The method for constructing a transmission line crossing overhead line according to claim 1, characterized in that: A rotation limiting mechanism is provided between the rotating support and the lifting support. One of the rotating support and the lifting support is provided with a guide groove, and the other is provided with a guide post that is stuck in the guide groove. The guide post moves in the guide groove as the rotation moves.

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