Special jig for modular trial assembly of power transmission tower

Abstract

The utility model discloses a special jig frame of power transmission tower modularization test assembly belongs to power transmission engineering equipment technical field, including hollow column and the frame that can slide in it, and the fine adjustment mechanism that hollow column top is equipped with by air cylinder drive sliding plate and pull plate, cooperate laser head and scale board, carry out high accuracy positioning to prefabricated part, be equipped with clamping mechanism on the frame, through hydraulic rod drive sleeve column and pressure plate pressurization to prefabricated part, utilize spring post to prevent deformation to buffer simultaneously. The utility model discloses a telescopic frame, accurate fine adjustment system and stable pressure -maintaining clamping system, realized the quick adaptation of different size prefabricated part, accurate positioning and steady clamping, and the assembly quality and efficiency have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of power transmission engineering equipment technology, and in particular to a special jig for modular trial assembly of power transmission towers. Background Technology

[0002] Transmission towers are key infrastructure in power transmission systems. With the continuous expansion of power grid construction, in order to improve construction efficiency and ensure project quality, the construction of transmission towers increasingly adopts modular prefabrication and on-site trial assembly. In this process, the special jig for trial assembly is a tooling equipment that ensures that each module can be accurately and stably spliced ​​together.

[0003] However, existing transmission tower assembly jigs are often relatively simple in structure and are fixed structures designed for specific tower material modules. This design means that when different sizes or specifications of prefabricated components need to be assembled, the entire jig must be replaced or large-scale modifications must be made. This not only greatly increases equipment costs but also seriously affects the continuity and efficiency of construction.

[0004] More importantly, these simple jigs rely heavily on manual operation and simple mechanical fixtures for positioning and clamping prefabricated components. This leads to two main drawbacks: first, positioning accuracy is difficult to guarantee; even small positional deviations can accumulate into significant assembly errors, affecting the structural stability and safety of the entire tower; second, clamping force is difficult to control. Insufficient clamping force can cause the prefabricated components to wobble during assembly, while excessive or uneven clamping force can easily cause the tower material itself to be squeezed and deformed, compromising its structural integrity.

[0005] Therefore, this utility model proposes a special jig for modular trial assembly of transmission towers to overcome the shortcomings of the prior art. Summary of the Invention

[0006] In view of the problems of poor adaptability to prefabricated parts of different sizes, low positioning and clamping accuracy, and easy deformation of prefabricated parts in the existing modular test assembly jig for transmission towers, this utility model aims to provide a modular test assembly jig for transmission towers with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a special jig for modular trial assembly of transmission towers, including a hollow column and a frame that can be slidably housed in the hollow column; the jig also includes a fixing plate, a cylinder, a sliding plate, a pulling plate and a clamping mechanism.

[0008] The fixed plate, cylinder, sliding plate and pulling plate together constitute a precision fine-tuning system. The fixed plate is fixedly connected to the top of the hollow column, the cylinder is fixed to the fixed plate, and its output end is connected to the sliding plate to drive it to slide along the top of the hollow column. The sliding plate is connected to the pulling plate to drive the prefabricated part to make fine adjustments.

[0009] Furthermore, the clamping mechanism, as a powerful fixing system, is installed on the frame. It includes a fixed column and a pressure plate slidably mounted on the fixed column. The pressure plate is driven by a hydraulic rod to apply pressure to the precast component. By combining the sliding frame that allows for coarse adjustment, the precision fine-tuning system located at the top, and the powerful fixing system located on the frame, a complete technical solution for fixing the precast component, from coarse adjustment and fitting to precise positioning and stable clamping, is formed.

[0010] Preferably, the structure of the clamping mechanism is further optimized, and it also includes a sleeve column, a square plate and a spring column; the hydraulic rod is fixedly installed through the square plate, and its output end is connected to the sleeve column. The sleeve column is slidably sleeved on the outer wall of the fixed column and pushes the pressure plate; the spring column surrounds the outer wall of the fixed column and abuts against the base of the pressure plate and the fixed column. The structural combination makes the clamping force transmission more stable, and the buffering effect of the spring column can effectively prevent the precast component from deforming under force.

[0011] Preferably, in order to achieve high-precision alignment detection, the jig also includes a laser head and a standard target; both the laser head and the standard target are mounted on the frame, and the actual position of the preform is checked by the laser beam passing through the standard target.

[0012] Preferably, in order to facilitate initial fixing and fine-tuning reference, the top of the frame is provided with an angle steel clamp that is locked with screws, and the top of the hollow column is also provided with a scale plate along the sliding path of the sliding plate. The angle steel clamp is used to initially clamp the precast component, and the scale plate is used to visually display the displacement amount for fine-tuning.

[0013] Preferably, in order to ensure the smooth operation of the fine-tuning mechanism, the top of the hollow column is provided with a guide rail for the sliding plate to slide, and the end of the pulling plate facing the preform is provided with a structure for abutting or hooking the preform to ensure reliable transmission of driving force.

[0014] This utility model has the following beneficial effects: 1. This utility model, by setting a frame that can slide inside the hollow column, can conveniently adjust the jig according to the size of the prefabricated component, which solves the problems of fixed structure and poor versatility of existing trial assembly jigs, and achieves the technical effects of reducing equipment types, improving equipment utilization and reducing costs.

[0015] 2. This utility model solves the problems of low positioning accuracy and low efficiency in traditional assembly by setting up a fine-tuning mechanism consisting of a cylinder-driven sliding plate and a pulling plate, and using a laser head for detection. It achieves the technical effect of rapid and precise fine-tuning of prefabricated parts, and significantly improves the quality of modular assembly.

[0016] 3. This utility model solves the problem of insufficient or uneven clamping force of traditional clamps, which easily leads to shaking or deformation of prefabricated parts during assembly, by setting a clamping mechanism driven by a hydraulic rod and buffered by a spring column. It achieves the technical effect of applying a stable and uniform clamping force to the prefabricated parts, ensuring the stability and reliability of the trial assembly process. Attached Figure Description

[0017] Figure 1 This is a perspective view of the front side of the frame of the special jig for modular trial assembly of transmission towers proposed in this utility model. Figure 2 This is a partial structural disassembly diagram of the prefabricated component of the special jig for modular trial assembly of transmission towers proposed in this utility model. Figure 3 This is a partial structural diagram of the fixing plate of the special jig for modular trial assembly of transmission towers proposed in this utility model; Figure 4 This is a partial structural diagram of the hydraulic rod of the special jig for modular trial assembly of transmission towers proposed in this utility model.

[0018] Legend: 1. Frame; 2. Clamping mechanism; 201. Hydraulic rod; 202. Sleeve column; 203. Fixed column; 204. Pressure plate; 205. Spring column; 206. Square plate; 3. Hollow column; 4. Precast component; 5. Scale plate; 6. Angle steel clamp; 7. Screw; 8. Laser head; 9. Standard target base; 10. Fixed plate; 11. Cylinder; 12. Sliding plate; 13. Pulling plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0020] Please refer to Figures 1 to 4 This utility model provides a special frame for modular trial assembly of transmission towers, including a hollow column 3 as a supporting foundation and a frame 1 slidably housed inside the hollow column 3; the frame 1 is used to support the prefabricated component 4 and adjust its size, and through the sliding fit of the frame 1 in the hollow column 3, a retractable base structure is formed.

[0021] To solve the above-mentioned technical problems, the technical solution of this embodiment is that the special jig for modular trial assembly of transmission towers also includes an adjustment component for precision fine-tuning and a clamping mechanism 2 for strong fixing. Through the structural cooperation of the adjustment component and the clamping mechanism 2 with the frame 1 and the hollow column 3, high-precision positioning and stable assembly of the prefabricated component 4 can be achieved.

[0022] Please refer to Figure 1 , Figure 3 and Figure 4 The adjustment assembly includes a fixed plate 10, a cylinder 11, a sliding plate 12, and a pulling plate 13. The fixed plate 10 is fixedly connected to the top of the hollow column 3, and the cylinder 11 is fixedly installed on the fixed plate 10. The output end of the cylinder 11 is connected to the sliding plate 12 and is used to drive the sliding plate 12 to slide along the guide rail set at the top of the hollow column 3. The sliding plate 12 is connected to the pulling plate 13, and the end of the pulling plate 13 facing the precast part 4 is provided with a structure for abutting or hooking the precast part 4. The cylinder 11 extends and retracts to drive the sliding plate 12, and then the pulling plate 13 drives the precast part 4 to make fine adjustments to its position. This structure realizes precise control of the position of the precast part 4.

[0023] The clamping mechanism 2 is mounted on the frame 1 and includes a square plate 206, a hydraulic rod 201, a sleeve column 202, a fixed column 203, a pressure plate 204, and a spring column 205. The square plate 206 is used to fix the hydraulic rod 201. The fixed column 203 is vertically fixed to the frame 1. The sleeve column 202 and the pressure plate 204 are slidably sleeved on the outer wall of the fixed column 203. The telescopic end of the hydraulic rod 201 is connected to the sleeve column 202 and is used to drive the sleeve column 202 to slide along the fixed column 203. The end of the sleeve column 202 then pushes the pressure plate 204 to apply pressure to fix the precast part 4. The spring column 205 surrounds the outer wall of the fixed column 203, and its two ends abut against the base of the pressure plate 204 and the fixed column 203, respectively. It is used to provide buffering and prevent deformation of the precast part 4 when pressure is applied. This clamping method combining hydraulic and spring forces ensures that the clamping force on the precast part 4 is both strong and stable.

[0024] As a preferred embodiment, in order to achieve high-precision detection of position 4 of the precast component, please refer to... Figure 1 The frame also includes a laser head 8 and a standard target 9; both the laser head 8 and the standard target 9 are mounted on the frame 1. The laser head 8 is used to emit a laser beam, which passes through the groove of the standard target 9 to determine whether the position of the preform 4 is accurate.

[0025] As another preferred embodiment, for the initial clamping and positioning of prefabricated part 4, please refer to... Figure 1 An angle steel clamp 6 is provided on the top of the frame 1; the angle steel clamp 6 is used to clamp the prefabricated part 4 and can be locked and fixed by tightening the screws 7.

[0026] As another preferred implementation, to provide a visual reference during the fine-tuning process, please refer to... Figure 1 A scale plate 5 is provided on the top of the hollow column 3 along the sliding path of the sliding plate 12 to display the adjustment displacement of the precast component 4 driven by the pulling plate 13.

[0027] As another preferred embodiment, to ensure the smoothness and guiding nature of the movement of the sliding plate 12, please refer to... Figure 3 The top of the hollow column 3 is provided with a guide rail for the sliding plate 12 to slide.

[0028] Working principle: First, adjust the length of the frame 1 on the inner wall of the hollow column 3 according to the size of the precast part 4. Then, place the precast part 4 on the top of the frame 1 and clamp it initially with the angle steel clamp 6. Observe whether there is any error between the laser head 8 and the drawing in the slope section through the groove on the top of the standard target seat 9. If there is an error, the precast part 4 is finely adjusted by extending and shortening the cylinder 11 and pulling the plate 13. After adjustment, tighten the screw 7. Then, apply pressure through the clamping mechanism 2, extend the hydraulic rods 201 on both sides, and push the pressure plate 204 to press the precast part 4. That is, when the precast part 4 needs to be replaced, there is no need to replace the frame 1, and the precast part 4 can be fixed to ensure that it does not shake or deform. First, the frame 1 slides on the inner wall of the hollow column 3 to adapt to the size of the precast part 4. Then, the precast part 4 is initially fixed by the angle iron clamp 6. The laser head 8 checks whether the position of the precast part 4 corresponds to the drawing through the standard target base 9. If they do not correspond, the cylinder 11 is fixed by the fixing plate 10. The cylinder 11 is extended and shortened so that the sliding plate 12 slides along the return of the top of the hollow column 3, which drives the pulling plate 13 and the precast part 4 to make fine adjustments and correspond to the scale plate 5. Then, the screw 7 is tightened and the clamping mechanism 2 is used to pressurize and fix it. Multiple hydraulic rods 201 are fixed by square plate 206. The hydraulic rods 201 are extended, so that sleeve 202 slides on the outer wall of fixed column 203. The sleeve 202 pushes the pressure plate 204 to slide on the outer wall of fixed column 203 at the same time, and compresses spring column 205 to prevent it from deforming, thereby fixing the precast part 4.

Claims

1. A special jig for modular trial assembly of transmission towers, including: A hollow column (3) and a frame (1) slidably housed within the hollow column (3), characterized in that the frame further includes a fixing plate (10), a cylinder (11), a sliding plate (12), a pulling plate (13), and a clamping mechanism (2), wherein the fixing plate (10) is fixedly connected to the top of the hollow column (3); the cylinder (11) is fixed to the fixing plate (10) and is used to drive the sliding plate (12) to slide along the top of the hollow column (3); the sliding plate (12) is connected to the pulling plate (13), the pulling plate (13) is used to drive the preform (4), and the clamping mechanism (2) is disposed on the frame (1) and includes a fixing column (203) and a pressure plate (204), wherein the pressure plate (204) is slidably disposed on the fixing column (203) and driven by a hydraulic rod (201) for applying pressure to the preform (4).

2. The special jig for modular trial assembly of transmission towers according to claim 1, characterized in that, The clamping mechanism (2) further includes a sleeve (202), the output end of the hydraulic rod (201) is connected to the sleeve (202), the sleeve (202) is slidably sleeved on the outer wall of the fixed column (203), and the end of the sleeve (202) is used to push the pressure plate (204).

3. The special jig for modular trial assembly of transmission towers according to claim 2, characterized in that, The clamping mechanism (2) further includes a square plate (206) and a spring column (205); the hydraulic rod (201) is fixedly installed through the square plate (206); the spring column (205) surrounds the outer wall of the fixed column (203) and abuts against the base of the pressure plate (204) and the fixed column (203).

4. The special jig for modular trial assembly of transmission towers according to claim 1, characterized in that, The frame also includes a laser head (8) and a standard target (9); the laser head (8) and the standard target (9) are both mounted on the frame (1), and the laser head (8) is used to emit a laser beam through the standard target (9) to detect the position of the preform (4).

5. The special jig for modular trial assembly of transmission towers according to claim 1, characterized in that, The top of the frame (1) is provided with an angle steel clamp (6) for initially fixing the prefabricated part (4), and the angle steel clamp (6) is locked by screws (7).

6. The special jig for modular trial assembly of transmission towers according to claim 1, characterized in that, The top of the hollow column (3) is provided with a scale plate (5) along the sliding path of the sliding plate (12).

7. The special jig for modular trial assembly of transmission towers according to claim 1, characterized in that, The pull plate (13) has a structure at one end facing the preform (4) for abutting or hooking the preform (4).

8. The special jig for modular trial assembly of transmission towers according to claim 1, characterized in that, The top of the hollow column (3) is provided with a guide rail for the sliding plate (12) to slide.

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