Overhead transmission line construction measurement control device
By using a measurement and control device in the construction of overhead transmission lines, combined with a winch and level, the precise measurement and adjustment of sag can be achieved, solving the problems of inaccurate sag measurement and low adjustment efficiency in traditional methods, and improving the safety and efficiency of construction.
Patent Information
- Application Number
- CN202520003338.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-02
AI Technical Summary
In the construction of traditional overhead transmission lines, sag measurement is inaccurate and adjustment efficiency is low. The difficulty and danger increase, especially in complex terrain or severe weather conditions, which affects the safety and stability of the transmission line.
An overhead transmission line construction measurement and control device is adopted, including a transmission frame, winch, sag adjustment rope, connector, adjusting pulley and level. The length of the sag adjustment rope is adjusted by the winch, and the tilt angle is measured by the level to achieve precise sag control. The safety and stability are improved by the self-locking structure and insulators.
It improves the accuracy of sag measurement and the ease of adjustment, enhances the stability and safety of transmission lines, and reduces construction costs and efficiency.
Smart Images
Figure CN223649896U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power transmission technical field especially relates to an overhead transmission line construction survey control device. BACKGROUND
[0002] In the construction process of overhead transmission line, it is crucial to ensure that the sag (i.e. the amount of sag of the transmission line between two points due to gravity) of the transmission line is controlled within the design range. Too large or too small sag will affect the safety and stability of the transmission line, and even may cause line failure or damage. Therefore, accurate measurement and adjustment of the sag of the transmission line is a key step in the construction process.
[0003] The traditional overhead transmission line construction survey control method mainly relies on manual observation and experience judgment, and has problems such as inaccurate measurement and low adjustment efficiency. Especially in complex terrain or adverse weather conditions, the difficulty and danger of manual measurement and adjustment will greatly increase. SUMMARY
[0004] The utility model aims at providing an overhead transmission line construction survey control device to accurately measure and adjust the sag of the transmission line during the construction of overhead transmission line.
[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing an overhead transmission line construction survey control device, which comprises:
[0006] A power transmission frame is arranged on an electric tower.
[0007] A winch is rotatably arranged on the power transmission frame, and a self-locking structure is arranged on the winch.
[0008] Two sag adjustment ropes are connected to the power transmission frame at one end and connected to the winch at the other end, and the two sag adjustment ropes are respectively located on the two sides of the power transmission frame.
[0009] Two connecting parts are respectively fixed to the transmission lines on the two sides of the power transmission frame.
[0010] An adjustment pulley is connected to one side of the connecting part close to the power transmission frame, and the two sag adjustment ropes are respectively matched with the adjustment pulleys on the two sides.
[0011] A level is arranged on the connecting part away from the power transmission frame.
[0012] In one embodiment, the self-locking structure comprises a bolt hole, and the bolt holes are uniformly distributed on the edge of the winch.
[0013] In one embodiment, the main shaft of the winch is provided with an inner hexagonal hole outside the main shaft for facilitating connection of a handle.
[0014] In one embodiment, an insulator is further included, one end of the insulator is hingedly connected to the power transmission frame, and the other end of the insulator is connected to the sag adjusting rope, and the sag adjusting rope is connected to the power transmission frame through the insulator.
[0015] In one embodiment, a support pulley is further included, the support pulley is arranged below the power transmission frame, and the power transmission line between the two connection portions is arranged on the support pulley.
[0016] In one embodiment, the adjusting pulley is a self-lubricating pulley, and the surface of the self-lubricating pulley is coated with a wear-resistant and drag-reducing material.
[0017] The one or more technical solutions in the above embodiments of the utility model have at least the following technical effects or advantages:
[0018] The overhead power transmission line construction measurement control device provided in the embodiments of the utility model can directly and accurately measure the inclination angle of the connection portion, and then accurately convert the sag deflection of the power transmission line, thereby improving the accuracy and reliability of measurement compared with the traditional measurement method. In addition, the device is designed through the winch and the sag adjusting rope, so that the operator can easily adjust the length of the sag adjusting rope by rotating the winch, thereby adjusting the distance between the two connection portions, and effectively controlling the sag deflection of the power transmission line. This design simplifies the adjustment process and improves the work efficiency. The self-locking structure arranged on the winch can lock the winch after adjustment, effectively preventing the change of the sag deflection caused by external force, and ensuring the stability and safety of the power transmission line, thereby reducing the risk of failure and accidents caused by improper sag. The device integrates measurement and adjustment functions, simplifies the measurement and adjustment steps in the construction process of the overhead power transmission line, reduces the investment of manpower and material resources, significantly improves the construction efficiency, and reduces the construction cost.
[0019] In summary, the overhead power transmission line construction measurement control device of the utility model not only improves the accuracy of measurement and the convenience of adjustment, but also enhances the stability and safety of the power transmission line, and improves the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0021] Figure 1 The structural schematic diagram of the overhead transmission line construction measurement control device provided by the embodiments of the present application is shown.
[0022] In the drawings, various reference signs are as follows:
[0023] 1, power transmission frame; 2, winch; 3, sag adjusting rope; 4, connecting part; 5, adjusting pulley; 6, level; 7, insulator; 8, supporting pulley; 9, power transmission line; 21, self-locking structure; 22, internal hexagonal hole. DETAILED DESCRIPTION
[0024] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0025] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0026] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0027] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element mutual action relation. For ordinary skilled person in the art, the above terms can be understood according to the specific meaning in the utility model.
[0028] Please refer to Figure 1 The utility model provides an overhead transmission line construction survey control device, including transmission frame 1, capstan 2, two arc sag adjustment ropes 3, two connecting parts 4, adjustment pulley 5, level 6. Wherein, transmission frame 1 is set up in electric tower;Capstan 2 rotatable is set up in transmission frame 1, and capstan 2 is provided with self-locking structure 21;Arc sag adjustment rope 3 one end is connected with transmission frame 1, and the other end of arc sag adjustment rope 3 is connected with capstan 2, and two arc sag adjustment ropes 3 are located at the both sides of transmission frame 1 respectively;Two connecting parts 4 are fixed on the transmission line 9 of the both sides of transmission frame 1 respectively;Adjustment pulley 5 is connected on the side of connecting part 4 close to transmission frame 1, and two arc sag adjustment ropes 3 are matched in the adjustment pulley 5 of both sides respectively;Level 6 is set up on the side of connecting part 4 away from transmission frame 1.
[0029] The utility model provides an overhead transmission line construction survey control device, through the level 6 of setting on connecting part 4 accurately measures the inclination angle of connecting part 4 (the level 6 specifically can be electronic level 6 or have accurate scale's level 6, in order to construction personnel can accurately measure the inclination angle of transmission line 9), and then converts the sag deflection of transmission line 9, and through rotating adjustment capstan 2, makes arc sag adjustment rope 3 wind on capstan 2 or release from capstan 2, adjusts the length of arc sag adjustment rope 3, and then adjusts the distance between the both sides of connecting part 4, and then realizes the both sides of connecting part 4 to the center direction of transmission frame 1 and is pulled tight, i.e. reduces the sag deflection, or the both sides of connecting part 4 to the both sides direction of transmission frame 1 and is relaxed, i.e. improves the sag deflection. After adjustment, through the self-locking structure 21 on capstan 2, capstan 2 is locked, effectively prevents the sag deflection change caused by external force, ensures the stability and safety of transmission line 9. And then realizes the measurement and adjustment of the sag deflection of transmission line 9.
[0030] In one embodiment, the self-locking structure 21 includes a latch hole, which is uniformly distributed on the edge of the capstan 2. By uniformly setting the latch hole on the edge of the capstan 2, the operator can lock it by inserting the latch into the corresponding latch hole after adjusting the position of the capstan 2, ensuring that the capstan 2 will not rotate by itself due to external forces, thereby effectively maintaining the stability of the sag deflection of the transmission line 9 and enhancing the safety and reliability of the device.
[0031] Optional, such as Figure 1 As shown, the power transmission frame 1 at the installation position of the winch 2 is also provided with pin holes. When locking, simply insert the pin into the pin holes of the winch 2 and the power transmission frame 1 to lock the winch 2.
[0032] In one embodiment, the outer side of the main shaft of the winch 2 is provided with an internal hexagonal hole 22 for easy connection of a handle. The internal hexagonal hole 22 on the outer side of the main shaft of the winch 2 allows the operator to easily connect to the winch 2 using an internal hexagonal wrench or a special handle, thereby making it easier to rotate the winch 2 for adjustment. This design improves the convenience and efficiency of operation and reduces the labor intensity of the operator.
[0033] In one embodiment, the device further includes an insulator 7, one end of which is hinged to the transmission frame 1, and the other end of which is connected to the sag adjusting rope 3. The sag adjusting rope 3 is connected to the transmission frame 1 through the insulator 7. The addition of the insulator 7 effectively isolates the direct electrical connection between the transmission frame 1 and the sag adjusting rope 3, thereby improving the safety performance of the device.
[0034] In one embodiment, a support pulley 8 is also included. The support pulley 8 is located below the power transmission frame 1, and the power transmission line 9 between the two connecting parts 4 rests on the support pulley 8. The support pulley 8 serves a protective function. When the sag adjusting rope 3 becomes loose from the power transmission frame 1 / winch 2 or the adjusting pulley 5 becomes loose from the connecting part 4, the sag adjusting rope 3 cannot provide support for the power transmission line 9. In this case, the support pulley 8 below can provide temporary support to the power transmission line 9 and prevent it from falling off the power transmission frame 1.
[0035] In one embodiment, the adjusting pulley 5 is a self-lubricating pulley, its surface coated with a wear-resistant and drag-reducing material (specifically, a ceramic material, such as alumina ceramic, silicon carbide ceramic, etc.). The self-lubricating pulley design and the wear-resistant and drag-reducing surface coating enable the adjusting pulley 5 to maintain low frictional resistance during rotation, reducing wear and heat generation between the pulley and the sag adjusting rope 3, thus improving the pulley's service life and adjusting efficiency. Simultaneously, this design also allows the pulley to maintain good lubrication performance even in harsh environments, enhancing the adaptability and reliability of the device.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A construction measurement and control device for overhead transmission lines, characterized in that, The overhead transmission line construction measurement and control device includes: A power transmission frame, which is mounted on a power tower; A winch, which is rotatably mounted on the power transmission frame, and is equipped with a self-locking structure; Two sag adjustment ropes, one end of each sag adjustment rope is connected to the power transmission frame, and the other end of each sag adjustment rope is connected to the winch. The two sag adjustment ropes are located on both sides of the power transmission frame. Two connecting parts are respectively fixed to the power transmission lines on both sides of the power transmission frame; An adjusting pulley is connected to the connecting part on the side near the power transmission frame, and two sag adjusting ropes are respectively engaged with the adjusting pulleys on both sides; A level is provided on the connecting part on the side away from the power transmission frame.
2. The overhead transmission line construction measurement and control device according to claim 1, characterized in that: The self-locking structure includes pin holes, which are evenly distributed along the edge of the winch.
3. The overhead transmission line construction measurement and control device according to claim 1, characterized in that: The main shaft of the winch is provided with an internal hexagonal hole on the outside to facilitate the connection of the handle.
4. The overhead transmission line construction measurement and control device according to claim 1, characterized in that: It also includes an insulator, one end of which is hinged to the transmission frame, and the other end of which is connected to the sag adjustment rope, which is connected to the transmission frame through the insulator.
5. The overhead transmission line construction measurement and control device according to claim 1, characterized in that: It also includes a support pulley, which is located below the power transmission frame, and the power transmission line between the two connecting parts rests on the support pulley.
6. The overhead transmission line construction measurement and control device according to claim 1, characterized in that: The adjusting pulley is a self-lubricating pulley, and its surface is coated with a wear-resistant and drag-reducing material.