Power transmission steel tube tower and structure support assembly operation platform
By combining the design of a split positioning slot with a double-ended positioning mechanism, the problem of precise alignment between the transmission steel pipe tower and the support structure was solved, enabling a fast and accurate assembly process and improving assembly efficiency and structural reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-17
AI Technical Summary
In existing assembly technologies, there is a problem with precise alignment when connecting power transmission steel pipe towers and support structures, which leads to time-consuming and labor-intensive repeated adjustments at high altitudes, and welding repair deviations affect the structural safety and reliability.
The design employs a split positioning groove and a double-end positioning mechanism, combined with a pre-positioning mechanism and a main positioning mechanism, to achieve synchronous and precise positioning of the steel pipe tower and the support structure. The linkage control of the rotating plate and the positioning sleeve ensures stable adjustment of the hoisting posture. The clamping structure of the grab plate and the positioning arc plate improves the positioning reliability and equipment versatility.
It enables rapid and precise assembly of steel pipe towers and structural supports, reduces installation errors, improves assembly efficiency and structural safety, and avoids potential hazards such as stress concentration and heat-affected zones.
Smart Images
Figure CN224002383U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an assembly platform, and more particularly to an assembly operation platform for power transmission steel pipe towers and structural supports. Background Technology
[0002] In the construction of high-voltage transmission lines, transmission steel pipe towers are widely used in special working conditions such as long spans and heavy icing areas due to their excellent mechanical properties and wind and earthquake resistance. They play a crucial supporting role, especially in 500kV and above voltage levels. The support frame, as an important component of the transmission tower, is mainly used to install auxiliary equipment such as conductor suspension clamps, jumper crossarms, and surge arresters. The reliability of its connection with the main tower body directly affects the stability of the overall structure. In traditional assembly processes, construction workers need to use hoisting equipment to align the prefabricated support frame with the steel pipe tower flange in mid-air, and then fix it using bolts or welding. This process requires repeated adjustments to the spatial posture of the support frame to achieve precise matching of the flange hole positions, followed by temporary fixing and final tightening operations. This involves numerous high-altitude operations with closely linked procedures.
[0003] Current assembly techniques primarily rely on manual visual inspection combined with simple positioning devices for spatial alignment. Due to the combined effects of component weight deformation, hoisting sway, and measurement errors, the flange bolt hole axis often deviates, making it difficult to smoothly insert the mandrel. Such assembly deviations not only cause time-consuming and labor-intensive repeated hoisting and adjustments at height, but also easily lead to localized stress concentration problems caused by poor contact surface fit. While some projects use hole enlargement to force a match, this weakens the connection strength, and the metal debris generated during hole enlargement may remain at the contact interface, accelerating corrosion. Furthermore, welding repairs of deviations alter the component's stress characteristics, posing risks such as decreased material properties in the heat-affected zone, severely impacting assembly efficiency and structural safety and reliability. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a transmission steel pipe tower and structural support assembly operation platform that can improve the assembly efficiency between steel pipe towers and structural supports.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a transmission steel pipe tower and support frame assembly operation platform, comprising an assembly bottom surface, wherein a steel pipe tower positioning groove and support frame positioning grooves are respectively located on both sides of the steel pipe tower positioning groove on the assembly bottom surface, and a support frame positioning mechanism and a steel pipe tower positioning device are respectively provided in the support frame positioning groove and the steel pipe tower positioning groove, wherein the steel pipe tower positioning device includes a pre-positioning mechanism provided at the opening of the steel pipe tower positioning groove and a main positioning mechanism provided on the side wall of the steel pipe tower positioning groove, wherein the main positioning mechanism and the support frame positioning mechanism abut against the steel pipe tower and the support frame respectively from both ends to form positioning, and the pre-positioning mechanism is used to position the tower feet of the steel pipe tower and cooperate with the hoisting equipment to place the steel pipe tower in the steel pipe tower positioning groove.
[0006] The beneficial effects of this utility model are as follows: Through the coordinated design of the split positioning groove and the double-end positioning mechanism, the synchronous and precise positioning of the steel pipe tower and the support frame is achieved. The symmetrical layout of the steel pipe tower positioning groove and the positioning grooves of the two side support frames ensures that the three are assembled on the same reference plane, avoiding installation errors caused by the offset of the reference plane. The linkage design of the pre-positioning mechanism and the main positioning mechanism can complete the initial positioning and final fixing of the steel pipe tower in stages during the hoisting process, transforming the aerial posture adjustment of heavy components into automatic alignment within the groove. As a preferred method, the steel pipe tower positioning groove can adopt a V-shaped groove structure. Its inclined guiding effect allows the steel pipe tower to slide naturally to the center line of the groove bottom under its own weight. Combined with the elastic buffer pad layer set on the side wall, it can absorb the impact force of hoisting and achieve self-centering function. In addition, the support frame positioning mechanism can adopt a composite device of electromagnetic adsorption and mechanical clamping. After rapid adsorption and positioning, secondary fastening is carried out by hydraulic claws to ensure the stable positioning of irregularly shaped components.
[0007] Furthermore, the pre-positioning mechanism includes a rotating plate and positioning sleeves arranged on the rotating plate in accordance with the number of steel pipe tower legs. The positioning sleeves are used to place the tower legs of the steel pipe tower. When the steel pipe tower tilts into the positioning groove of the steel pipe tower, the rotating plate rotates synchronously until it reaches a vertical state.
[0008] This solution effectively solves the attitude control problem during the tower foot insertion process by using a dynamically following rotating plate design. The positioning sleeve's enveloping constraint on the tower foot prevents displacement caused by hoisting sway, while the synchronous rotation of the rotating plate ensures a smooth and controllable transition of the steel pipe tower from an inclined hoisting state to an upright positioning. As a preferred approach, the rotating plate can be equipped with an angle sensor and a linkage control system with the hoisting equipment. When a change in the rotating plate angle is detected, the hoisting speed is automatically adjusted to achieve closed-loop control of the attitude transition. A ball bearing array can be installed on the inner wall of the positioning sleeve to reduce rotational friction resistance while ensuring positioning accuracy and extending the service life of the components.
[0009] Furthermore, the pre-positioning mechanism also includes a movable plate, the rotating plate is hinged to one end of the movable plate, and a lifting drive is provided on the side of the rotating plate opposite to the movable plate, the retractable end of the lifting drive is hinged to the rotating plate.
[0010] This structure further enhances pre-positioning accuracy through a multi-degree-of-freedom adjustment mechanism. The lateral displacement of the moving plate, combined with the rotational motion of the rotating plate, allows for fine-tuning of the three-dimensional spatial position of the steel pipe tower. The lifting drive component enables the rotating plate to actively level, eliminating the impact of ground unevenness on positioning accuracy. As a preferred method, the moving plate can employ a linear guide rail driven by a servo motor to improve accuracy. The lifting drive component can be a combination of an electric push rod and a tilt sensor, automatically compensating and adjusting when a verticality deviation of the steel pipe tower is detected, ensuring that the final positioning meets the verticality requirements.
[0011] Furthermore, the positioning mechanism of the support frame includes retractable gripping plates respectively disposed on the two side walls of the positioning groove of the support frame, and the gripping plates facing the support frame are arc-shaped and adapted to the outer peripheral surface of the support frame.
[0012] The symmetrical clamping structure with dual grippers significantly improves the positioning reliability of irregularly shaped components. The arc-shaped contact surface design increases the effective contact area, resulting in a more uniform distribution of clamping force and preventing component deformation caused by localized stress concentration. The extendable nature of the grippers adapts to supports with different cross-sectional dimensions, enhancing the equipment's versatility. As a preferred approach, the grippers can adopt a modular design, allowing for quick replacement of clamping modules with different curvatures based on the component's cross-sectional shape. The telescopic mechanism can employ worm gear transmission in conjunction with a displacement sensor to achieve graded control of the clamping force, ensuring positioning rigidity while preventing overload damage to the component surface.
[0013] Furthermore, the positioning groove of the steel pipe tower is inverted V-shaped, and an equipment wall is provided at the center of the positioning groove. The main positioning mechanism is set on the equipment wall, and the main positioning mechanism includes retractable positioning arc plates respectively set on both sides of the equipment wall. The positioning arc plates are locked on the inner side of the steel pipe tower.
[0014] The combined design of the inverted V-shaped positioning groove and the internal clamping positioning achieves precise positioning of the steel pipe tower and optimized assembly space. The inverted V-shaped groove guides the steel pipe tower to automatically center, and the central part of the equipment wall provides independent operating space for the internal and external positioning mechanisms. The design of the inner positioning arc plate fully exposes the outer surface of the steel pipe tower, leaving ample operating space for subsequent welding, bolting, and other assembly operations. As a preferred approach, the positioning arc plate can be designed as a segmented structure, with each segment equipped with an independent hydraulic drive unit that can automatically adjust the wrap angle range according to changes in the diameter of the steel pipe tower. Cooling pipes can be integrated inside the equipment wall to implement localized cooling during welding operations, preventing thermal deformation from affecting positioning accuracy.
[0015] Furthermore, the main positioning mechanism also includes a lifting plate disposed within the equipment wall, a lifting drive component disposed below the lifting plate, and a positioning arc plate disposed above the lifting plate.
[0016] The introduction of the lifting mechanism enables adjustable vertical position of the steel pipe tower, facilitating the assembly of components at different heights. Through precise displacement of the lifting plate, the installation height of the steel pipe tower can be quickly adjusted to maintain optimal alignment with the side supports. As a preferred method, the lifting drive can employ a ball screw coupled with linear guides to improve positioning accuracy. The lifting plate can integrate a load cell to monitor the stress state of the positioning mechanism in real time. When an abnormal load is detected, lifting automatically stops and an alarm sounds, ensuring operational safety. Attached Figure Description
[0017] Figure 1 This is a top view of an embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the pre-positioning mechanism according to an embodiment of the present utility model;
[0019] Figure 3 This is a cross-sectional view of the main positioning mechanism of an embodiment of this utility model;
[0020] Figure 4 This is a side view of the support positioning mechanism according to an embodiment of the present utility model;
[0021] Figure 5 This is an assembly diagram of an embodiment of the present utility model. Detailed Implementation
[0022] This utility model embodiment provides an assembly and operation platform for power transmission steel pipe towers and structural supports, as follows: Figure 1-5 As shown: The assembly includes a bottom surface 1, on which a steel pipe tower positioning groove 11 and support frame positioning grooves 12 distributed on both sides are provided. The steel pipe tower positioning groove 11 adopts an inverted V-shaped structure, with a vertically extending equipment wall 14 in the center of the groove. Both side walls of the support frame positioning groove 12 are provided with retractable gripping plates 151, the clamping surface of which is an arc 152 matching the outer contour of the support frame.
[0023] The positioning slot 11 of the steel pipe tower has a pre-positioning mechanism 16 at its open end. This mechanism includes a slidingly connected movable plate 161 and a rotating plate 162 hinged thereon. A double row of positioning sleeves 163 are fixed to the surface of the rotating plate 162, with the sleeve axes coaxial with the steel pipe tower axis. A lifting drive component 164 is connected to the bottom of the rotating plate 162, and the telescopic end of the drive component 164 is connected to the rotating plate 162 via a hinge. Liftable positioning arc plates 171 are provided on both sides of the equipment wall 14. These arc plates are connected to the lifting drive component 173 at the bottom via the lifting plate 172, and the inner arc surface of the arc plate forms a positioning connection with the inner wall of the steel pipe tower.
[0024] When hoisting the steel pipe tower 2, the tower feet are first inserted into the positioning sleeve 163 using hoisting equipment. As the steel pipe tower 2 is gradually lowered, the rotating plate 162 rotates around the hinge axis under gravity until the steel pipe tower 2 falls completely vertically into the steel pipe tower positioning groove 11. At this time, the lifting drive component 173 pushes the positioning arc plate 171 upward, clamping and fixing the main body of the steel pipe tower from the inside. Simultaneously, the two side support brackets 3 are hoisted into the support bracket positioning groove 12, and the grab plate 151 extends under hydraulic drive, achieving radial positioning of the support bracket through the arc-shaped clamping surface 152. After positioning is completed, the operator can perform assembly and welding operations on the steel pipe tower 2 and support bracket 3 within the support bracket positioning groove 12.
[0025] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.
Claims
1. A transmission steel pipe tower, construction support assembly operation platform, characterized in that: The assembly bottom surface is provided with steel pipe tower positioning slots and support positioning slots on both sides of the steel pipe tower positioning slots, and support positioning mechanisms and steel pipe tower positioning devices are respectively arranged in the support positioning slots and the steel pipe tower positioning slots.
2. The power transmission steel tube tower, structure support assembly operation platform according to claim 1, characterized in that: The pre-positioning mechanism includes a rotating plate and positioning sleeves corresponding to the number of tower feet of the steel pipe tower arranged on the rotating plate, the positioning sleeves are used to place the tower feet of the steel pipe tower, and the rotating plate rotates synchronously with the steel pipe tower when the steel pipe tower is poured into the steel pipe tower positioning slot until it is vertical.
3. The transmission tower, construction support assembly operation platform of claim 2, wherein: The pre-positioning mechanism further includes a moving plate, the rotating plate is hinged to one end of the moving plate, and the side of the rotating plate opposite to the moving plate is provided with a lifting driving element, and the extendable end of the lifting driving element is hinged to the rotating plate.
4. The galvanized steel pipe tower, support group assembly operation platform according to claim 1, characterized in that: The support positioning mechanism includes extendable grab plates arranged on the two side walls of the support positioning slot, and the grab plates on the side of the support frame are arc-shaped and matched with the outer peripheral surface of the support frame.
5. The galvanized steel pipe tower, support group assembly operation platform according to claim 1, characterized in that: The steel pipe tower positioning slot is in the shape of an inverted V, a device wall is arranged at the center of the steel pipe tower positioning slot, the main positioning mechanism is arranged on the device wall, and the main positioning mechanism includes extendable positioning arc plates arranged on both sides of the device wall and clamped on the inner side of the steel pipe tower.
6. The transmission tower, construction support assembly operation platform of claim 5, wherein: The main positioning mechanism further includes a lifting plate arranged in the device wall, a lifting driving element is arranged below the lifting plate, and the positioning arc plates are arranged above the lifting plate.