Power transmission line fitting loss monitoring device and detection method

Abstract

The invention discloses a power transmission line fitting loss monitoring device and detection method, and the device comprises a connection fitting which is disposed on an electric tower and is used for erecting a power transmission line, and also comprises two groups of clamping units which are symmetrically disposed at the two sides of the connection fitting; the vertical monitoring unit is arranged between the two sets of clamping units and the connecting fitting and used for monitoring the movement amount of the connecting fitting on the vertical plane, and the clamping units and the vertical monitoring unit are arranged on the connecting fitting and the electric tower, so that the real-time abrasion value and the swing frequency of the power transmission line can be monitored in real time; the average single-time abrasion value is calculated according to the abrasion value and the swing times, the average single-time abrasion value serves as a judgment standard, and after it is monitored that the swing times reach the dangerous times, a worker is reminded to replace the connection hardware fitting, so that the connection hardware fitting is used to a greater extent.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line connection fittings, and in particular to a transmission line fitting loss monitoring device and a detection method. Background Art

[0002] In the actual installation process of the transmission line, due to its long laying distance, a tower will be set up at one end in the air for hanging the transmission line. Generally, when the transmission line is hung on the tower, it is connected to the tower through connecting hardware. However, due to the environment and other factors, the transmission line laid at high altitude will dance and cause friction with the connecting hardware, which causes the connecting hardware to wear. Since the connecting hardware is located at high altitude, its wear is not easy to see, so it is impossible to accurately judge the time to replace the connecting hardware, and it can only be replaced regularly. In this way, some of the replaced connecting hardware will have less wear, and some will have more. The hardware with less wear can actually still be used for a period of time. If it is replaced, it will cause the inconvenience of not being able to fully utilize the material. For this reason, we designed a transmission line connection line loss monitoring device

[0003] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a transmission line fitting loss monitoring device to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a transmission line fitting loss monitoring device, comprising a connection fitting arranged on an electric tower for erecting a transmission line, and further comprising:

[0005] Two groups of clamping units are symmetrically arranged on both sides of the connecting hardware, used to clamp the power transmission circuits installed on both sides of the connecting hardware, and to monitor in real time the movement of the power transmission line in the X-axis direction during installation;

[0006] The vertical monitoring unit is arranged between the two groups of clamping units and the connecting hardware, and is used to monitor the movement amount of the connecting hardware on the vertical plane.

[0007] Preferably, the clamping unit comprises:

[0008] A clamping ring connected to the connecting fitting via the vertical monitoring unit;

[0009] Three groups of clamping rollers are arranged in a circular array in the clamping ring to perform three-point clamping on the power transmission line;

[0010] The distance adjusting member is arranged between the clamping ring and each group of the clamping rollers, and is used to adjust the distance between the clamping rollers and the clamping ring so as to clamp power transmission lines of different specifications and thicknesses.

[0011] Preferably, the clamping ring comprises three groups of clamping arc rings, wherein one group of the clamping arc rings is rotatably arranged on the other two groups of the clamping arc rings, and the other two groups of the clamping arc rings are fastened by bolts.

[0012] Preferably, the distance adjusting member comprises:

[0013] A roller frame, fixedly arranged on the inner side of the clamping ring, for the sliding of the clamping roller;

[0014] A sliding plate slides on the roller frame, and the axle of the clamping roller is arranged on the sliding plate;

[0015] One end of the threaded screw is connected to the sliding plate, and the other end is threadedly connected to the clamping ring. A rotating block is arranged through the clamping ring. A nut is arranged on the threaded screw located on the inner side of the clamping ring to assist in fixing the position of the threaded screw after being screwed.

[0016] Preferably, the vertical monitoring unit comprises:

[0017] A Z-axis monitoring component, disposed between the clamping ring and the connecting fitting, for monitoring the friction swing amplitude and swing wear value of the power transmission line in the Z-axis direction;

[0018] Two sets of Y-axis monitoring components are symmetrically arranged on both sides of the Z-axis monitoring component, and are used to monitor the friction swing amplitude and swing wear value of the transmission line in the Y-axis direction.

[0019] Preferably, the Z-axis monitoring component comprises:

[0020] A slide rod, one end of which is connected to the clamping ring and the other end of which is provided with a slide block;

[0021] A first slide plate is fixedly arranged on the power tower, and the slider is slidably arranged in the first slide plate in the Z-axis direction;

[0022] A rotating rod, one end of which is rotatably arranged on the slider, and the other end of which is rotatably arranged with an extrusion block, and the electric tower is provided with a second slide plate for the extrusion block to slide;

[0023] The elastic telescopic rod has one end arranged at the end of the second slide slot plate and the other end abutting against the rotating rod. A spring force gauge is arranged inside the elastic telescopic rod to detect the elastic telescopic amount of the elastic telescopic rod.

[0024] Preferably, the Y-axis monitoring component comprises:

[0025] A rotating block is rotatably disposed on the sliding block, and the lower end of the rotating block is connected to the sliding rod;

[0026] A collar is slidably arranged on the slide rod, and a concave block is rotatably and slidably arranged on the collar;

[0027] A connecting rod, one end of which is rotatably set on the concave block, and the other end of which is slidably connected to a slide cylinder. The slide cylinder is rotatably set on the connecting hardware away from one end of the connecting rod. A limit block is set at the end of the connecting rod located in the slide cylinder. A return spring is sleeved on the connecting rod located in the slide cylinder, and a rangefinder is set on the limit block.

[0028] The method for detecting the loss of transmission line fittings is to determine the wear value of each swing by collecting the number of swings and the actual wear in the early stage, and then calculate the wear of the connecting fittings based on the wear value and the number of swings.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention can monitor the real-time wear value and swing frequency of the transmission line by arranging a clamping unit and a vertical monitoring unit on the connecting hardware and the tower, thereby calculating the average single wear value through the wear value and the swing frequency, and using this as a judgment standard. After monitoring that the number of swings reaches a dangerous number, the staff is reminded to replace the connecting hardware, thereby making greater use of the connecting hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a diagram of the installation of the clamping unit and the vertical monitoring unit of the present invention on the connecting hardware and the power tower;

[0033] Figure 3 It is a front view of the overall structure of the present invention;

[0034] Figure 4 This is the overall structural diagram of the clamping unit of the present invention;

[0035] Figure 5 It is a cross-sectional view of the Z-axis monitoring assembly of the present invention;

[0036] Figure 6 It is a partial cross-sectional view of the Y-axis monitoring assembly of the present invention;

[0037] Figure 7 for Figure 2 Enlarged view of point A in the middle.

[0038] Figure markings: 1-electric tower; 2-connecting hardware; 3-clamping unit; 31-clamping ring; 331-clamping arc ring; 32-clamping roller; 33-roller frame; 34-sliding plate; 35-threaded screw; 36-rotating block; 37-nut; 4-vertical monitoring unit; 41-Z-axis monitoring assembly; 411-slide rod; 412-sliding block; 413-first slide plate; 414-rotating rod; 415-extrusion block; 416-second slide plate; 417-elastic telescopic rod; 42-Y-axis monitoring assembly; 421-rotating block; 422-ring; 423-concave block; 424-connecting rod; 425-slide cylinder; 426-limiting block; 427-reset spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-7 The present invention provides a technical solution: a transmission line hardware loss monitoring device, comprising a connection hardware 2 arranged on a tower 1 for erecting a transmission line, and further comprising:

[0041] Two groups of clamping units 3 are symmetrically arranged on both sides of the connection fittings 2, and are used to clamp the power transmission circuits installed on both sides of the connection fittings 2, and to monitor in real time the movement of the power transmission line in the X-axis direction during installation;

[0042] The vertical monitoring unit 4 is disposed between the two groups of clamping units 3 and the connecting fitting 2 and is used to monitor the movement of the connecting fitting 2 on the vertical plane.

[0043] Wherein, the clamping unit 3 comprises:

[0044] A clamping ring 31 connected to the connecting fitting 2 via the vertical monitoring unit 4;

[0045] Three groups of clamping rollers 32 are arranged in a circular array in the clamping ring 31 to perform three-point clamping on the power transmission line;

[0046] The distance adjusting member is disposed between the clamping ring 31 and each group of the clamping rollers 32 and is used to adjust the distance between the clamping rollers 32 and the clamping ring 31 so as to clamp power transmission lines of different specifications and thicknesses.

[0047] In addition, the clamping ring 31 includes three groups of clamping arc rings 311, wherein one group of the clamping arc rings 311 is rotatably arranged on the other two groups of the clamping arc rings 311, and the other two groups of the clamping arc rings 311 are fastened by bolts.

[0048] At the same time, the distance adjusting member comprises:

[0049] A roller frame 33, fixedly disposed on the inner side of the clamping ring 31, for the clamping roller 32 to slide;

[0050] A sliding plate 34 slides on the roller frame 33, and the axle of the clamping roller 32 is arranged on the sliding plate 34;

[0051] A threaded screw 35, one end of which is connected to the sliding plate 34, and the other end of which is threadedly connected to the clamping ring 31, and a rotating block 36 is provided through the clamping ring 31, and a nut 37 is provided on the threaded screw 35 located inside the clamping ring 31 to assist in fixing the position of the threaded screw 35 after being screwed;

[0052] When tightening, the two sets of clamping arc rings 311 fastened by bolts are opened, and then sleeved on the transmission line, and then tightened again by bolts, and then the rotating blocks 36 are respectively screwed to make the three sets of clamping rollers 32 clamp and fix the transmission line, and the nut 37 is screwed on the inner side of the clamping ring 31 so that the nut 37 abuts against the inner wall of the clamping half ring, so that the threaded screw 35 can be tightened more;

[0053] When monitoring the lateral amount in the X-axis direction, the friction displacement of the power transmission line on the connecting hardware 2 is determined by the rotation amount of the clamping roller 32. One forward and reverse rotation of the clamping roller 32 is recorded as one friction swing amplitude count, and the magnitude of the friction displacement is the magnitude of one swing amplitude wear value.

[0054] Wherein, the vertical monitoring unit 4 includes:

[0055] A Z-axis monitoring component 41 is disposed between the clamping ring 31 and the connecting fitting 2 and is used to monitor the friction swing amplitude and swing wear value of the power transmission line in the Z-axis direction;

[0056] Two groups of Y-axis monitoring components 42 are symmetrically arranged on both sides of the Z-axis monitoring component 41, and are used to monitor the friction swing amplitude and swing wear value of the transmission line in the Y-axis direction.

[0057] In addition, the Z-axis monitoring component 41 includes:

[0058] A slide rod 411, one end of which is connected to the clamping ring 31, and the other end of which is provided with a slide block 412;

[0059] The first slide plate 413 is fixedly arranged on the power tower 1, and the slider 412 is slidably arranged in the first slide plate 413 in the Z-axis direction;

[0060] A rotating rod 414, one end of which is rotatably arranged on the slider 412, and the other end of which is rotatably arranged with an extrusion block 415, and the power tower 1 is provided with a second slide plate 416 for the extrusion block 415 to slide;

[0061] An elastic telescopic rod 417, one end of which is arranged at the end of the second slide plate 416, and the other end of which is in contact with the rotating rod 414. A spring force meter is arranged inside the elastic telescopic rod 417 to detect the elastic telescopic amount of the elastic telescopic rod 417;

[0062] When monitoring the friction swing amplitude number and swing wear value of the Z axis, after the transmission line is clamped, when the Z axis displacement occurs, the slider 412 slides in the first slide plate 413 toward the positive direction of the Z axis, thereby driving the rotating rod 414 to rotate to squeeze the elastic telescopic rod 417. After one vibration disappears, the transmission line will be reset, and the elastic force gauge will record the change in force value of the elastic telescopic rod 417 when it is squeezed, shortened and reset, which is one vibration and the change in force value is the wear value.

[0063] Meanwhile, the Y-axis monitoring component 42 includes:

[0064] A rotating block 421 is rotatably disposed on the sliding block 412, and the lower end of the rotating block 421 is connected to the sliding rod 411;

[0065] A collar 422 is slidably disposed on the slide bar 411, and a concave block 423 is rotatably and slidably disposed on the collar 422;

[0066] A connecting rod 424, one end of which is rotatably arranged on the concave block 423, and the other end of which is slidably connected with a slide 425, the slide 425 being rotatably arranged on the connecting fitting 2 away from the end of the connecting rod 424, a limit block 426 being arranged at the end of the connecting rod 424 located in the slide 425, a return spring 427 being sleeved on the connecting rod 424 located in the slide 425, and a distance meter being arranged on the limit block 426;

[0067] When monitoring the friction swing amplitude times and friction loss in the Y-axis direction, when the transmission line dances, when driving the clamping ring 31 to move relatively in the Y-axis direction, the slide bar 411 will be driven to deflect, thereby stretching or compressing the connecting rod 424 to slide in the slide cylinder 425, so that the limit block 426 slides in the slide cylinder 425, so that the rangefinder will measure the sliding distance of the limit block 426. The rangefinder detects the change in the distance from the limit slider 412 to the end of the slide cylinder 425. One extension and contraction is one friction swing amplitude, and the friction loss is the sliding distance.

[0068] Finally, the friction swing amplitudes in the above three directions are monitored 1000 times, and the corresponding friction losses are recorded and the corresponding average values ​​are taken as a, b, and c, respectively. The actual wear of the connection hardware 2 under this value is then determined based on the average value of the actual wear of the connection hardware 2 under the average conditions of multiple groups of the above test disks. This is used as the wear judgment of the connection hardware 2, so as to determine the minimum range of the dangerous wear swing amplitude of the connection hardware 2, and then the connection hardware 2 is replaced in real time according to the minimum value in actual operation;

[0069] The above-mentioned clamping unit 3 and vertical clamping unit 3 are specifically configured to press the transmission line, thereby reducing the amplitude of the transmission line swing, thereby reducing the amount of friction loss, increasing the number of friction times of the connecting fitting 2, and achieving the function of increasing the practical life of the connecting fitting 2.

[0070] The power transmission line fitting loss detection method, in the early stage, determines the wear value of each swing by collecting the number of swings and the actual wear, and connects the fitting 2 to calculate the wear value by combining the wear value and the number of swings;

[0071] Finally, it should be noted that a thermometer is also provided on the connection fitting 2 at the connection between the transmission line and the connection fitting 2, which is used to monitor the temperature at the friction point in real time to prevent excessive friction from causing high temperatures and causing a significant decrease in the toughness of the connection fitting, and to provide early warning and prevention measures.

Claims

1. A device for monitoring the loss of hardware for power transmission lines, comprising a connection hardware (2) arranged on a power tower (1) for erecting power transmission lines, characterized in that: Also includes: Two groups of clamping units (3) are symmetrically arranged on both sides of the connection fitting (2), and are used to clamp the power transmission circuits installed on both sides of the connection fitting (2), and to monitor in real time the movement of the power transmission line in the X-axis direction during installation; The vertical monitoring unit (4) is arranged between the two groups of clamping units (3) and the connecting fitting (2) and is used to monitor the movement amount of the connecting fitting (2) on the vertical plane.

2. The transmission line fittings loss monitoring device according to claim 1, characterized in that: The clamping unit (3) comprises: A clamping ring (31) connected to the connecting fitting (2) via the vertical monitoring unit (4); Three groups of clamping rollers (32) are arranged in a circular array inside the clamping ring (31) to perform three-point clamping on the power transmission line; The distance adjusting member is arranged between the clamping ring (31) and each group of the clamping rollers (32) and is used to adjust the distance between the clamping rollers (32) and the clamping ring (31) so as to clamp power transmission lines of different specifications and thicknesses.

3. The transmission line hardware loss monitoring device according to claim 2, characterized in that: The clamping ring (31) comprises three groups of clamping arc rings (311), wherein one group of the clamping arc rings (311) is rotatably arranged on the other two groups of the clamping arc rings (311), and the other two groups of the clamping arc rings (311) are fastened by bolts.

4. The transmission line fittings loss monitoring device according to claim 2, characterized in that: The distance adjusting member comprises: A roller frame (33) is fixedly arranged on the inner side of the clamping ring (31) and is used for the clamping roller (32) to slide; A sliding plate (34) slides on the roller frame (33), and the axle of the clamping roller (32) is arranged on the sliding plate (34); A threaded screw (35) has one end connected to the sliding plate (34) and the other end threadedly connected to the clamping ring (31). A rotating block (36) is provided through the clamping ring (31). A nut (37) is provided on the threaded screw (35) located on the inner side of the clamping ring (31) to assist in fixing the position of the threaded screw (35) after being screwed.

5. The transmission line hardware loss monitoring device according to claim 2, characterized in that: The vertical monitoring unit (4) comprises: A Z-axis monitoring component (41) is disposed between the clamping ring (31) and the connecting hardware (2) and is used to monitor the friction swing amplitude and swing wear value of the power transmission line in the Z-axis direction; Two groups of Y-axis monitoring components (42) are symmetrically arranged on both sides of the Z-axis monitoring component (41) and are used to monitor the friction swing amplitude and swing wear value of the power transmission line in the Y-axis direction.

6. The transmission line hardware loss monitoring device according to claim 5, characterized in that: The Z-axis monitoring component (41) comprises: A slide rod (411), one end of which is connected to the clamping ring (31) and the other end of which is provided with a slide block (412); A first slide plate (413) is fixedly arranged on the power tower (1), and the slider (412) is slidably arranged in the first slide plate (413) in the Z-axis direction; A rotating rod (414) has one end rotatably disposed on the slider (412) and the other end rotatably disposed with an extrusion block (415); the electric tower (1) is provided with a second slide plate (416) for the extrusion block (415) to slide; The elastic telescopic rod (417) has one end arranged at the end of the second slide slot plate (416) and the other end abutting against the rotating rod (414). A spring force gauge is arranged inside the elastic telescopic rod (417) to detect the elastic telescopic amount of the elastic telescopic rod (417).

7. The transmission line hardware loss monitoring device according to claim 6, characterized in that: The Y-axis monitoring component (42) comprises: A rotating block (421) is rotatably disposed on the sliding block (412), and the lower end of the rotating block (421) is connected to the sliding rod (411); A collar (422) is slidably disposed on the slide bar (411), and a concave block (423) is rotatably and slidably disposed on the collar (422); The connecting rod (424) has one end rotatably arranged on the concave block (423) and the other end is slidably connected to a slide cylinder (425). The slide cylinder (425) is rotatably arranged on the connecting hardware (2) at one end away from the connecting rod (424). A limit block (426) is arranged at the end of the connecting rod (424) located in the slide cylinder (425). A return spring (427) is sleeved on the connecting rod (424) located in the slide cylinder (425), and a distance meter is arranged on the limit block (426).

8. A method for detecting the loss of hardware for a power transmission line, using the device for monitoring the loss of hardware for a power transmission line as claimed in any one of claims 1 to 7, characterized in that: In the early stage, the wear value of each swing is determined by collecting the number of swings and the actual wear amount, and the connection hardware (2) calculates the wear amount by combining the wear value and the number of swings.

Images