Crossarm mounting stand

Abstract

The cross arm mounting rack provided by the application is provided with the horizontally arranged mounting rack, which can place the parts and tools required for mounting the cross arm; the positioning structure is provided, which can be sleeved on the pole tower through the positioning cavity to preliminarily position the pole tower; the positioning lifting mechanism is provided, which can be inserted into the positioning cavity and abut against the pole tower in the positioning cavity to drive the mounting rack to move along the axis direction of the pole tower; the auxiliary positioning mechanism is provided, which can fix the position of the mounting rack after the positioning lifting mechanism moves to the working height; long-time high-altitude operation can be realized, the physical load of the operator is small, the safety of operation is improved, and the practicability is good.

Description

Technical Field

[0001] This invention belongs to the field of crossarm auxiliary installation technology, specifically relating to a crossarm installation platform. Background Technology

[0002] Crossarms are an important component of power poles and towers. Their function is to install insulators and fittings, support conductors and lightning protection wires, and maintain them at a safe distance as required. A crossarm is an angle iron fixed horizontally at the top of a power pole, with porcelain insulators on it, used to support overhead power lines. According to their use, they can be divided into: straight crossarms, angle crossarms, and tension crossarms.

[0003] In the existing technology, the installation methods for crossarms vary depending on the region. Currently, the crossarms used in power distribution networks are mainly iron crossarms. In actual work on poles, workers mainly rely on their arm strength to pass the horizontal crossarms, insulation bottles, and conductors. Furthermore, factors such as pole type, line span, and erection method also require workers to have the physical fitness and technical ability to install crossarms of different sizes and types. However, due to the need for long-term high-altitude work, there will be a large physical load, resulting in high operational risks and poor practicality. Summary of the Invention

[0004] This invention provides a crossarm installation platform, which aims to solve the problems of high operational risks and poor practicality of existing crossarm installation methods.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a crossbeam mounting platform, comprising:

[0006] Mounting rack, horizontally installed;

[0007] The positioning structure is fixed on the mounting frame and has a positioning cavity sleeved on the tower;

[0008] The positioning and lifting mechanism includes four components. Each positioning and lifting structure is arranged in a ring at intervals on the positioning structure and extends into the positioning cavity, contacting the tower in the positioning cavity. Each positioning and lifting mechanism is used to position the positioning structure so that the positioning cavity and the tower are coaxially arranged. After positioning is completed, the mechanism drives the mounting frame to move towards the top of the tower along the axial direction of the tower.

[0009] An auxiliary positioning mechanism is used to fix the position of the mounting frame after the positioning lifting mechanism has moved to the working height.

[0010] In one possible implementation, the positioning structure includes:

[0011] Two semi-circular positioning rings are provided, and both semi-circular positioning rings are fixed on the mounting frame to form the positioning cavity. Each semi-circular positioning ring is provided with two positioning through holes, and the two positioning through holes on each semi-circular positioning ring are connected to the positioning cavity.

[0012] Two fixing bolts are provided, which are located at the connection of the two semi-circular positioning rings and are used to fix the two semi-circular positioning rings.

[0013] The four positioning and lifting mechanisms are respectively installed in the corresponding positioning through holes.

[0014] In one possible implementation, each of the positioning and lifting mechanisms includes:

[0015] The first electric push rod has a fixed end and a telescopic end. The fixed end is fixed in the corresponding positioning through hole, and the telescopic end extends into the positioning cavity along the radial direction of the positioning cavity.

[0016] A lifting unit is installed on the telescopic end of each of the corresponding first electric push rods, and is used to drive the mounting frame to move along the axial direction of the tower.

[0017] In one possible implementation, each of the lifting units includes:

[0018] The wheel frame is fixed to the telescopic end of the corresponding first electric push rod;

[0019] The drive wheel is provided in multiples, and the multiple drive wheels are arranged at intervals in the vertical direction on the wheel frame. Each drive wheel is rotatably connected to the wheel frame and abuts against the side of the tower.

[0020] A driver is used to drive each of the drive wheels to rotate.

[0021] In one possible implementation, the driver is a servo motor.

[0022] In one possible implementation, the spacing direction between the two semicircular positioning rings is defined as the first direction, and the horizontal direction perpendicular to the first direction is defined as the second direction.

[0023] Two auxiliary positioning mechanisms are provided, both of which are mounted on the mounting frame. The two auxiliary positioning mechanisms are respectively located on the upper and lower sides of the positioning lifting mechanism. Each auxiliary positioning mechanism includes:

[0024] Two arc-shaped auxiliary positioning rings are provided. The two arc-shaped auxiliary positioning rings are horizontal and spaced apart along the first direction. They are used to be fitted onto the tower for auxiliary positioning. Each arc-shaped auxiliary positioning ring is provided with two auxiliary positioning holes.

[0025] Two arc-shaped connecting rings are provided. The two arc-shaped connecting rings are horizontally spaced apart along the first direction and are slidably connected to the two arc-shaped auxiliary positioning rings. When the two arc-shaped connecting rings slide, and the spacing direction of the two arc-shaped connecting rings rotates from the first direction to the second direction, the position of the two arc-shaped auxiliary positioning rings is locked. The two arc-shaped auxiliary positioning rings and the two arc-shaped connecting rings together form an auxiliary positioning cavity.

[0026] The second electric push rod is provided in multiple ways. Each second electric push rod has a fixed end and a telescopic end. The fixed end is fixed in the corresponding auxiliary positioning hole, and the telescopic end extends into the auxiliary positioning cavity along the length direction of the auxiliary positioning hole and abuts against the side wall of the tower to fix the tower in the auxiliary positioning cavity.

[0027] Two cylinders are provided, both of which are mounted on the mounting frame. The two cylinders are respectively positioned corresponding to the two arc-shaped auxiliary positioning rings. The fixed ends of the two cylinders are hinged to the mounting frame, and the telescopic ends of the two cylinders are respectively hinged to the two arc-shaped auxiliary positioning rings. This is used to lift the mounting frame after each of the second electric push rods fixes the tower in the auxiliary positioning cavity, thereby preventing the mounting frame from shaking.

[0028] Each of the auxiliary positioning holes is connected to the auxiliary positioning cavity, and the two auxiliary positioning cavities are respectively arranged on the upper and lower sides of the positioning cavity, and the two auxiliary positioning cavities are coaxially arranged with the positioning cavity.

[0029] In one possible implementation, the mounting bracket includes:

[0030] Two connecting rods are provided, which are horizontal and spaced apart along the first direction. Each connecting rod is provided with a connecting protrusion, which corresponds to the two semi-circular positioning rings respectively, for fixing the two semi-circular positioning rings.

[0031] Two reinforcing rods are provided, which are horizontally arranged and spaced apart along the second direction. Each reinforcing rod is arranged along the first direction and its two ends are respectively connected to the two connecting rods to reinforce the connection relationship between the two connecting rods.

[0032] There are two side-mounted boxes, which are respectively hung on the two connecting rods. Each side-mounted box has a bearing cavity for bearing the tools and parts required for installing the crossarm.

[0033] The two connecting rods and the two reinforcing rods together form a rectangular mounting cavity.

[0034] In one possible implementation, each of the connecting rods has a support portion and a connecting portion. The support portion is arranged along the second direction and its two ends are respectively connected to one end of the two reinforcing rods. One end of the connecting portion is fixed to the support portion, and the other end extends along the first direction toward the rectangular mounting cavity for connection to the corresponding semi-circular positioning ring.

[0035] The protruding end of the connecting part is the connecting protrusion.

[0036] In one possible implementation, each of the drive wheels has a wear-resistant rubber layer on the contact surface with the tower sidewall.

[0037] In one possible implementation, both of the arc-shaped auxiliary positioning rings are provided with arc-shaped grooves, which are used for the arc-shaped connecting rings to slide.

[0038] Compared with existing technologies, this implementation features a horizontally positioned mounting frame to hold the parts and tools needed for installing the crossarm. A positioning structure is incorporated into the mounting frame, allowing it to be fitted onto the tower via a positioning cavity for initial tower positioning. A positioning lifting mechanism extends into the positioning cavity and abuts against the tower within it, ensuring the positioning structure is coaxial with the tower. After positioning, the mechanism moves the mounting frame along the tower's axis. An auxiliary positioning mechanism is also included, fixing the mounting frame's position after the lifting mechanism reaches the working height. This approach enables extended high-altitude operations with reduced physical strain on workers, improved safety, and high practicality. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the working structure of the crossarm mounting platform provided in an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of the connection structure between the positioning structure and the positioning lifting mechanism of the crossbeam mounting platform provided in an embodiment of the present invention;

[0041] Figure 3 for Figure 2 Example: A front view schematic diagram of the positioning structure and positioning lifting mechanism of the crossbeam mounting platform;

[0042] Figure 4 This is a schematic diagram of the auxiliary positioning mechanism of the crossbeam mounting platform provided in an embodiment of the present invention;

[0043] Figure 5 This is a schematic diagram of the crossbeam mounting platform provided in an embodiment of the present invention;

[0044] Explanation of reference numerals in the attached figures:

[0045] 100. Mounting bracket; 110. Connecting rod; 111. Support part; 112. Connecting part; 120. Reinforcing rod; 130. Side hanging box; 131. Bearing cavity; 140. Rectangular mounting cavity; 200. Positioning structure; 210. Semi-circular positioning ring; 211. Positioning cavity; 220. Fixing bolt; 300. Positioning lifting mechanism; 310. First electric push rod; 320. Lifting unit; 321. Wheel frame; 322. Drive wheel; 323. Driver; 400. Auxiliary positioning mechanism; 410. Arc-shaped auxiliary positioning ring; 411. Arc-shaped slide groove; 420. Arc-shaped connecting ring; 430. Second electric push rod; 440. Auxiliary positioning cavity; 450. Cylinder. Detailed Implementation

[0046] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0047] It should be noted that the terms "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", and "tail" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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 limitations on the present invention.

[0048] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of a structure. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0050] Please refer to the following: Figures 1 to 5 The crossarm mounting platform provided by the present invention will now be described. The crossarm mounting platform includes a mounting frame 100, which is horizontally arranged.

[0051] The positioning structure 200 is fixed on the mounting frame 100 and has a positioning cavity 211 that is sleeved on the pole.

[0052] The positioning lifting mechanism 300 is provided in four parts. Each positioning lifting mechanism is arranged in a ring at intervals on the positioning structure 200 and extends into the positioning cavity 211 and contacts the tower in the positioning cavity 211. Each positioning lifting mechanism 300 is used to position the positioning structure 200 so that the positioning cavity 211 and the tower are coaxially arranged. After the positioning is completed, the mounting frame 100 is driven to move towards the top of the tower along the axial direction of the tower.

[0053] The auxiliary positioning mechanism 400 is used to fix the position of the mounting bracket 100 after the positioning lifting mechanism 300 moves to the working height.

[0054] Compared with the prior art, the crossarm mounting platform provided in this embodiment features a horizontally positioned mounting frame 100, which can hold the parts and tools required for installing the crossarm. A positioning structure 200 is provided on the mounting frame 100, which can be fitted onto the tower through a positioning cavity 211 for initial positioning of the tower. A positioning lifting mechanism 300 is provided on the positioning structure 200, which can extend into the positioning cavity 211 and abut against the tower within the positioning cavity 211. This mechanism positions the positioning structure 200, ensuring that the positioning cavity 211 and the tower are coaxial, and after positioning, it moves the mounting frame 100 along the axis of the tower. An auxiliary positioning mechanism 400 is provided on the mounting frame 100, which can fix the position of the mounting frame 100 after the positioning lifting mechanism 300 has moved to the working height. This allows for long-term high-altitude operations with less physical strain on the workers, improved operational safety, and good practicality.

[0055] In some embodiments, the positioning structure 200 described above may employ, for example... Figures 1 to 3 The structure shown. See also Figures 1 to 3The positioning structure 200 includes two semi-circular positioning rings 210 and two fixing bolts 220. Two semi-circular positioning rings 210 are provided, both fixed to the mounting bracket 100, forming a positioning cavity 211. Each semi-circular positioning ring 210 has two positioning through holes, both of which communicate with the positioning cavity 211. Two fixing bolts 220 are provided at the connection point of the two semi-circular positioning rings 210, used to fix the two semi-circular positioning rings 210.

[0056] Among them, the four positioning lifting mechanisms 300 are respectively installed in the corresponding positioning through holes.

[0057] The two semi-circular positioning rings 210 can be understood as a cylinder divided into two semi-circular halves, which together form a positioning cavity 211. The two positioning through holes on each semi-circular positioning ring 210 can be understood as four positioning through holes arranged annularly and spaced within the positioning cavity 211 after the two semi-circular positioning rings 210 are engaged. Fixing bolts 220 can be installed on the side walls of the two semi-circular positioning rings 210 to fix their positional relationship. This allows for initial positioning of the tower.

[0058] In some embodiments, the positioning and lifting mechanism 300 described above may employ, for example... Figure 2 , Figure 3 The structure shown. See also Figure 2 , Figure 3 Each positioning and lifting mechanism 300 includes a first electric push rod 310 and a lifting unit 320. The first electric push rod 310 has a fixed end and a telescopic end. The fixed end is fixed in the corresponding positioning through hole, and the telescopic end extends into the positioning cavity 211 along the radial direction of the positioning cavity 211. The lifting unit 320 is disposed on the telescopic end of each corresponding first electric push rod 310 and is used to drive the mounting frame 100 to move along the axial direction of the tower.

[0059] The first electric push rod 310 can be horizontally installed in the corresponding positioning through hole and can extend horizontally into the positioning cavity 211 for further positioning of the tower. It can be abutted against the tower by a lifting unit 320 located at its telescopic end, driving the mounting frame 100 to move along the tower's axial direction. The structure is simple and easy to operate. A controller can be installed on the lifting unit 320 to stop it when it reaches the installation height.

[0060] The first electric linear actuator 310 can also be a cylinder 450, or a hydraulic linear actuator. An electric linear actuator is an electrically driven device that converts the rotary motion of an electric motor into the linear reciprocating motion of a linear actuator. It can be used as an actuator in various simple or complex processes to achieve remote control, centralized control, or automatic control. Electric linear actuators are existing technology and will not be elaborated upon here.

[0061] In some embodiments, the lifting unit 320 described above may employ, for example... Figure 2 , Figure 3 The structure shown. See also Figure 2 , Figure 3 Each lifting unit 320 includes a wheel frame 321, drive wheels 322, and a driver 323. The wheel frame 321 is fixed to the telescopic end of the corresponding first electric push rod 310. Multiple drive wheels 322 are provided, spaced vertically on the wheel frame 321. Each drive wheel 322 is rotatably connected to the wheel frame 321 and abuts against the side of the tower. The driver 323 drives each drive wheel 322 to rotate.

[0062] The wheel frame 321 can fix multiple drive wheels 322. The multiple drive wheels 322 are arranged at intervals in the vertical direction and are all rotatably connected to the wheel frame 321, and can rotate on the wheel frame 321. The multiple drive wheels 322 can be understood as being arranged along the axis of the tower. The driver 323 can drive each drive wheel 322 to rotate.

[0063] In some embodiments, the driver 323 described above may employ, for example... Figure 3 The structure shown. See also Figure 3 The driver 323 is a servo motor.

[0064] Servo motors can control speed and position with very high accuracy. They can convert voltage signals into torque and speed to drive the controlled object. The rotor speed of a servo motor is controlled by the input signal and can respond quickly. In automatic control systems, they are used as actuators and have characteristics such as small electromechanical time constant and high linearity. They can convert received electrical signals into angular displacement or angular velocity output on the motor shaft. Servo motors are existing technology and will not be elaborated on further here.

[0065] In some embodiments, the auxiliary positioning mechanism 400 described above may employ, for example... Figure 1 , Figure 4 , Figure 5 The structure shown. See also Figure 1 , Figure 4 , Figure 5 The spacing direction of the two semi-circular positioning rings 210 is defined as the first direction, and the horizontal direction perpendicular to the first direction is defined as the second direction.

[0066] Two auxiliary positioning mechanisms 400 are provided, both mounted on the mounting bracket 100. The two auxiliary positioning mechanisms 400 are respectively positioned on the upper and lower sides of the positioning lifting mechanism 300. Each auxiliary positioning mechanism 400 includes: an arc-shaped auxiliary positioning ring 410, an arc-shaped connecting ring 420, a second electric push rod 430, and a cylinder 450. Two arc-shaped auxiliary positioning rings 410 are provided, horizontally spaced along a first direction, for use on the tower for auxiliary positioning. Each arc-shaped auxiliary positioning ring 410 has two auxiliary positioning holes. Two arc-shaped connecting rings 420 are provided, horizontally spaced along a first direction, and slidably connected to two arc-shaped auxiliary positioning rings 410. These rings lock the positions of the auxiliary positioning rings 410 when the arc-shaped connecting rings 420 slide and their spacing direction rotates from the first direction to the second direction. The two auxiliary positioning rings 410 and the two arc-shaped connecting rings 420 together form an auxiliary positioning cavity 440. Multiple second electric push rods 430 are provided, each having a fixed end and a telescopic end. The fixed end is fixed in the corresponding auxiliary positioning hole, and the telescopic end extends along the length of the auxiliary positioning hole into the auxiliary positioning cavity 440 and abuts against the side wall of the tower, used to fix the tower within the auxiliary positioning cavity 440. Two cylinders 450 are provided, both of which are mounted on the mounting frame 100. The two cylinders 450 are respectively positioned corresponding to the two arc-shaped auxiliary positioning rings 410. The fixed ends of the two cylinders 450 are hinged to the mounting frame 100, and the telescopic ends of the two cylinders 450 are respectively hinged to the two arc-shaped auxiliary positioning rings 410. This is used to lift the mounting frame 100 after the second electric push rods 430 fix the tower in the auxiliary positioning cavity 440, so as to prevent the mounting frame 100 from shaking.

[0067] Each auxiliary positioning hole is connected to the auxiliary positioning cavity 440. The two auxiliary positioning cavities 440 are respectively located on the upper and lower sides of the positioning cavity 211, and the two auxiliary positioning cavities 440 are coaxially arranged with the positioning cavity 211.

[0068] Two auxiliary positioning mechanisms 400 can position the tower on the upper and lower sides of the positioning and lifting mechanism 300.

[0069] The arc-shaped auxiliary positioning ring 410 can be understood as a cylinder with one end cut off in the middle, forming two arc-shaped segments smaller than semicircles. These segments can be fitted onto the tower for auxiliary positioning. Each arc-shaped auxiliary positioning ring 410 has two auxiliary positioning holes. The arc-shaped connecting ring 420 can be understood as a cylinder with one end cut off in the middle, forming two arc-shaped segments smaller than semicircles, with the same structure as the arc-shaped auxiliary positioning ring 410. When the two arc-shaped connecting rings 420 slide, and their spacing direction rotates from the first direction to the second direction, the positions of the two arc-shaped auxiliary positioning rings 410 are locked. The two arc-shaped auxiliary positioning rings 410 and the two arc-shaped connecting rings 420 together form an auxiliary positioning cavity 440. The second electric push rod 430 can abut against the side wall of the tower to fix the tower within the auxiliary positioning cavity 440. After the second electric push rods 430 fix the pole in the auxiliary positioning cavity 440, the cylinder 450 can lift the mounting frame 100 to prevent the mounting frame 100 from shaking. The two auxiliary positioning mechanisms 400 can also overcome obstacles (such as fixing rings or positioning parts) on the pole by cooperating with each other. They are flexible, adaptable and practical.

[0070] The second electric linear actuator 430 can also be a pneumatic cylinder 450, or a hydraulic actuator. An electric linear actuator is an electrically driven device that converts the rotary motion of an electric motor into the linear reciprocating motion of a linear actuator. It can be used as an actuator in various simple or complex processes to achieve remote control, centralized control, or automatic control. Electric linear actuators are existing technology and will not be elaborated upon here.

[0071] In some embodiments, the mounting bracket 100 may be adopted as follows: Figure 5 The structure shown. See also Figure 5 The mounting bracket 100 includes: connecting rods 110, reinforcing rods 120, and side mounting boxes 130. Two connecting rods 110 are provided, horizontally spaced along a first direction. Each connecting rod 110 has a connecting protrusion, corresponding to two semi-circular positioning rings 210 for fixing the two semi-circular positioning rings 210. Two reinforcing rods 120 are provided, horizontally spaced along a second direction. Each reinforcing rod 120 is positioned along the first direction and its ends are connected to the two connecting rods 110 to reinforce the connection between the two connecting rods 110. Two side mounting boxes 130 are provided, each mounted on one of the two connecting rods 110. Each side mounting box 130 has a bearing cavity 131 for supporting tools and parts required for installing the crossarm.

[0072] The two connecting rods 110 and the two reinforcing rods 120 together form a rectangular mounting cavity 140.

[0073] In some embodiments, the connecting rod 110 may be adopted as follows: Figure 5 The structure shown. See also Figure 5 Each connecting rod 110 has a support portion 111 and a connecting portion 112. The support portion 111 is arranged along the second direction and its two ends are respectively connected to one end of each of the two reinforcing rods 120. One end of the connecting portion 112 is fixed to the support portion 111, and the other end extends into the rectangular mounting cavity 140 along the first direction for connection to the corresponding semi-circular positioning ring 210.

[0074] The protruding end of the connecting part 112 is a connecting protrusion.

[0075] The connecting rod 110 can be fixed to the semi-circular positioning ring 210 by a connecting protrusion provided thereon, and the reinforcing rod 120 can reinforce the connection between the two connecting rods 110. The side mounting box 130 can carry the tools and parts required for installing the crossarm. The side mounting box 130 and the connecting rod 110 are detachably connected.

[0076] In some embodiments, the drive wheel 322 may be as follows: Figure 2 , Figure 3 The structure shown. See also Figure 2 , Figure 3 Each drive wheel 322 has a wear-resistant rubber layer on the contact surface with the tower side wall.

[0077] The wear-resistant rubber layer can be understood as a friction material. Friction materials are components used in power machinery that rely on friction to perform braking and transmission functions. All mechanical equipment and moving vehicles must have braking or transmission devices. Friction materials are key components in these braking or transmission devices. Their primary function is to absorb or transmit power through friction.

[0078] In some embodiments, the aforementioned arc-shaped auxiliary positioning ring 410 can be adopted as follows: Figure 4 The structure shown. See also Figure 4 Both arc-shaped auxiliary positioning rings 410 are provided with arc-shaped sliding grooves 411, which are used for the arc-shaped connecting ring 420 to slide.

[0079] The arc-shaped groove 411 allows the arc-shaped connecting ring 420 to slide, and can lock the position of the two arc-shaped auxiliary positioning rings 410 when the two arc-shaped connecting rings 420 rotate from the first direction to the second direction in the spaced direction.

[0080] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crossbeam mounting platform, characterized in that, include: Mounting rack, horizontally installed; The positioning structure is fixed on the mounting frame and has a positioning cavity sleeved on the tower; The positioning and lifting mechanism includes four mechanisms, each of which is arranged in a ring at intervals on the positioning structure and extends into the positioning cavity, contacting the tower in the positioning cavity. Each positioning and lifting mechanism is used to position the positioning structure so that the positioning cavity and the tower are coaxially arranged, and after positioning is completed, it drives the mounting frame to move towards the top of the tower along the axial direction of the tower. An auxiliary positioning mechanism is used to fix the position of the mounting frame after the positioning lifting mechanism has moved to the working height; The positioning structure includes: Two semi-circular positioning rings are provided, and both semi-circular positioning rings are fixed on the mounting frame to form the positioning cavity. Each semi-circular positioning ring is provided with two positioning through holes, and the two positioning through holes on each semi-circular positioning ring are connected to the positioning cavity. Two fixing bolts are provided, which are located at the connection of the two semi-circular positioning rings and are used to fix the two semi-circular positioning rings. The four positioning lifting mechanisms are respectively installed in the corresponding positioning through holes; The spacing direction between the two semicircular positioning rings is defined as the first direction, and the horizontal direction perpendicular to the first direction is defined as the second direction; Two auxiliary positioning mechanisms are provided, both of which are mounted on the mounting frame. The two auxiliary positioning mechanisms are respectively located on the upper and lower sides of the positioning lifting mechanism. Each auxiliary positioning mechanism includes: Two arc-shaped auxiliary positioning rings are provided. The two arc-shaped auxiliary positioning rings are horizontal and spaced apart along the first direction. They are used to be fitted onto the tower for auxiliary positioning. Each arc-shaped auxiliary positioning ring is provided with two auxiliary positioning holes. Two arc-shaped connecting rings are provided. The two arc-shaped connecting rings are horizontally spaced apart along the first direction and are slidably connected to the two arc-shaped auxiliary positioning rings. When the two arc-shaped connecting rings slide, and the spacing direction of the two arc-shaped connecting rings rotates from the first direction to the second direction, the position of the two arc-shaped auxiliary positioning rings is locked. The two arc-shaped auxiliary positioning rings and the two arc-shaped connecting rings together form an auxiliary positioning cavity. The second electric push rod is provided in multiple ways. Each second electric push rod has a fixed end and a telescopic end. The fixed end is fixed in the corresponding auxiliary positioning hole, and the telescopic end extends into the auxiliary positioning cavity along the length direction of the auxiliary positioning hole and abuts against the side wall of the tower to fix the tower in the auxiliary positioning cavity. Two cylinders are provided, both of which are mounted on the mounting frame. The two cylinders are respectively positioned corresponding to the two arc-shaped auxiliary positioning rings. The fixed ends of the two cylinders are hinged to the mounting frame, and the telescopic ends of the two cylinders are respectively hinged to the two arc-shaped auxiliary positioning rings. This is used to lift the mounting frame after each of the second electric push rods fixes the tower in the auxiliary positioning cavity, thereby preventing the mounting frame from shaking. Each of the auxiliary positioning holes is connected to the auxiliary positioning cavity, and the two auxiliary positioning cavities are respectively arranged on the upper and lower sides of the positioning cavity, and the two auxiliary positioning cavities are coaxially arranged with the positioning cavity.

2. The crossbeam mounting frame as described in claim 1, characterized in that, Each of the aforementioned positioning and lifting mechanisms includes: The first electric push rod has a fixed end and a telescopic end. The fixed end is fixed in the corresponding positioning through hole, and the telescopic end extends into the positioning cavity along the radial direction of the positioning cavity. A lifting unit is installed on the telescopic end of each of the corresponding first electric push rods, and is used to drive the mounting frame to move along the axial direction of the tower.

3. The crossbeam mounting frame as described in claim 2, characterized in that, Each of the lifting units includes: The wheel frame is fixed to the telescopic end of the corresponding first electric push rod; The drive wheel is provided in multiples, and the multiple drive wheels are arranged at intervals in the vertical direction on the wheel frame. Each drive wheel is rotatably connected to the wheel frame and abuts against the side of the tower. A driver is used to drive each of the drive wheels to rotate.

4. The crossbeam mounting platform as described in claim 3, characterized in that, The driver is a servo motor.

5. The crossbeam mounting frame as described in claim 1, characterized in that, The mounting bracket includes: Two connecting rods are provided, which are horizontal and spaced apart along the first direction. Each connecting rod is provided with a connecting protrusion, which corresponds to the two semi-circular positioning rings respectively, for fixing the two semi-circular positioning rings. Two reinforcing rods are provided, which are horizontally arranged and spaced apart along the second direction. Each reinforcing rod is arranged along the first direction and its two ends are respectively connected to the two connecting rods to reinforce the connection relationship between the two connecting rods. There are two side-mounted boxes, which are respectively hung on the two connecting rods. Each side-mounted box has a bearing cavity for bearing the tools and parts required for installing the crossarm. The two connecting rods and the two reinforcing rods together form a rectangular mounting cavity.

6. The crossbeam mounting frame as described in claim 5, characterized in that, Each of the connecting rods has a support portion and a connecting portion. The support portion is arranged along the second direction and its two ends are respectively connected to one end of the two reinforcing rods. One end of the connecting portion is fixed to the support portion, and the other end extends into the rectangular mounting cavity along the first direction for connection to the corresponding semi-circular positioning ring. The protruding end of the connecting part is the connecting protrusion.

7. The crossbeam mounting platform as described in claim 3, characterized in that, Each of the drive wheels has a wear-resistant rubber layer on the contact surface with the tower sidewall.

8. The crossbeam mounting platform as described in claim 1, characterized in that, Both of the arc-shaped auxiliary positioning rings are provided with arc-shaped sliding grooves, which are used for the arc-shaped connecting rings to slide.

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