43 results about "Stockbridge damper" patented technology

The invention relates to a four-bundle conductor traveling apparatus of a 500kV transmission line, which consists of main wheel traveling mechanisms, swing-bar elevation mechanisms, auxiliary wheel traveling mechanisms, brake mechanisms, boom side-swing mechanisms, a suspension basket and the like, wherein the main wheel traveling mechanisms, the swing-bar elevation mechanism, the auxiliary wheeltraveling mechanisms, the brake mechanisms and the boom side-swing mechanisms are respectively divided into two groups which are symmetrically distributed according to the traveling direction of the mechanisms with the left side and the right side being provided with one group respectively, and the main wheel traveling mechanisms, the swing-bar elevation mechanism, the auxiliary wheel traveling mechanisms, the brake mechanisms and the boom side-swing mechanisms are integrated into a whole by hinging two booms and a suspension basket bottom beam on the bottom parts of the main wheel traveling mechanisms. The four-bundle conductor traveling apparatus of the 500kV transmission line has high strength and a light weight, and the weight of the entire apparatus is greatly reduced; high-energy lithium battery is adopted as an electric power source, so the four-bundle conductor traveling apparatus can run continuously for more than one hour after being charged at one time; a direct-current low-speed brushless motor is adopted as a power mechanism, so the electrodeless variable-speed can be realized, and the four-bundle conductor traveling apparatus can be free and smooth to go forward and backward; the conductor traveling apparatus can successfully step across the barriers such as conductor spacers, stockbridge dampers, splicing sleeves, linear suspension strings and the like; and due to the adoption of the brake mechanisms, not only can the brake be realized, but also the safety effect can be realized.

The invention discloses a barrier-free patrolling robot system and a method for an overhead ground wire. The system comprises a patrolling robot, a barrier-free ground wire straight tower channel and a barrier-free stockbridge damper channel, wherein the patrolling robot comprises a robot body; two side-by-side driving wheels which move along the ground wire are arranged on the robot body; a clamping wheel is arranged on the front side of each driving wheel; the lower end of each driving wheel is connected with a revolute joint; the revolute joints are fixed at the two ends of a frame of the robot body; the barrier-free ground wire straight tower channel and the barrier-free stockbridge damper channel are respectively arranged at connecting parts of a suspension clamp, a stockbridge damper and the ground wire; and parts, extruding out of the ground wire, of the barrier-free ground wire straight tower channel and the barrier-free stockbridge damper channel are arc to guide the driving wheels of the patrolling robot to separate from the ground wire to cross the suspension clamp and the stockbridge damper, so that barrier-free passing is realized. The system and the method can ensure barrier-free patrolling of the patrolling robot.

The invention discloses a power transmission line hidden danger detection method based on instance segmentation, which uses an improved MASK R-CNN model to perform automatic detection of power transmission line hidden dangers in the power field based on an instance segmentation technology, and especially has obvious advantages in automatic detection of stockbridge damper corrosion. For an image shot by an unmanned aerial vehicle, a target area is acquired through the model, and accurate target feature extraction and classification detection can be realized. Based on a target instance obtainedby segmentation, an image processing technology is used to detect a target fault hidden danger degree, and target detection result weighting calculation is combined so that a target fault hidden danger level can be accurately quantified. And meanwhile, the characteristics of the detection target can be considered. According to the method, priori knowledge is utilized to perform image processing, feature extraction network structure adjustment and non-maximum suppression algorithm improvement, and a method of combining instance segmentation and target detection is introduced, so that automaticdetection of the target is realized, and the accuracy of the hidden danger target in the power transmission line is improved.

Provided is a robot used for automatically deicing a high tension transmission line. A support is provided with three sets of rotary mechanisms making the members arranged on the support rotate for a certain angle in a manner of a Chinese character pin. The middle rotary mechanism is located at one side of the support and is provided with an auxiliary hang mechanism which can be hung to the high tension power line. The rotary mechanisms on both ends are located on the other side of the support and are provided with elevating systems which can make the members provided on the rotary mechanismselevate. The elevating systems are provided with a deicing mechanism and a running gear driving the robot to walk on the high tension power line. According to the structure provided in the invention,the robot can stably creep on the overhead high tension power line at a preset speed, the auxiliary hang mechanism and running gear arranged in the manner of the Chinese character pin prevent the robot from falling in scurvy weathers, and the cooperation of the rotary mechanisms and elevating systems can help the robot conveniently step over the barriers such as stockbridge dampers, wire clamps, insulators and the like on the high tension power line.

The invention discloses a power transmission line stockbridge damper falling-off defect detection method which has high stockbridge damper falling-off defect detection accuracy and does not need a lotof training samples. The power transmission line stockbridge damper falling-off defect detection method comprises stockbridge damper marking, template screening, offset estimation and compensation ofan image to be detected, stockbridge damper target extraction, stockbridge damper feature extraction, and defect determination based on similarity analysis. By employing a method for analyzing the similarity between the image to be detected and a historical template image, the problem that the demanded number of the training samples is large is avoided; at the same time, by leading in a multi-template comparison technology and an image position offset estimation and compensation technology, the detection accuracy is further improved, and via actual validation, the accuracy is higher than 90%.The power transmission line stockbridge damper falling-off defect detection method is suitable for promotion and application in the technical field of power transmission line detection.

The invention discloses an energy collection type high-voltage power line anti-vibration hammer system, which includes a piezoelectric sheet and an anti-vibration hammer for collecting the vibration energy of the high-voltage line; one end of the piezoelectric sheet is suspended in the air, and the other end is connected to a support frame; the support frame is arranged on the high-voltage line through a splint The piezoelectric sheet is connected to the rectification device, and the rectification device is connected to the energy storage device; the energy storage device is also connected to the wireless monitoring sensor arranged on the high-voltage line; the anti-vibration hammer is arranged under the high-voltage line through the splint; the present invention collects the surrounding environment of the high-voltage power line through the piezoelectric sheet Vibration energy is converted into electrical energy and stored to provide permanent power supply for monitoring wireless sensors used in high-voltage power lines, which improves the service life of wireless sensors, saves the use of traditional energy, reduces the replacement of waste batteries, and avoids damage caused by regular battery replacement. Personnel safety accidents; at the same time, it has the characteristics of shock resistance, energy saving, economy and safety.

The invention provides a tool for removing a foreign matter from a bundled conductor of a high-voltage line in a live working manner and a method for removing the foreign matter. The tool for removing the foreign matter in a live working manner comprises a double-end pulley suspended from an overhead ground wire and is characterized in that the bottom pulley of the double-end pulley is tied to, through an insulated rope, a double-end foreign matter treater which can be moved adjacent to the foreign matter to treat the foreign matter; the double-end pulley is suspended from the overhead ground wire through a top pulley; the double-end foreign matter treater to which the bottom pulley of the double-end pulley is tied through the insulated rope comprises a U-shaped member for tying; and the two end portions of the U-shaped member are fixedly connected with steel wire beams horizontally and outwardly extending to form a double-end extended thorn. The method comprises the following steps that: a) a worker climbs up a tower with the insulated rope and the double-end pulley; b) the worker hangs the double-end pulley on a ground wire stockbridge damper by using an insulated operating rod; c) a ground worker drags the double-end pulley to a position over the foreign matter by using the insulated rope to treat the foreign matter; and d) the worker climbs down the tower after the foreign matter is removed.

The invention discloses a barrier-free way for allowing an overhead ground wire patrol robot to pass across straight line poles and stockbridge dampers. The barrier-free way comprises two guiding members symmetrically arranged at the outer sides of the stockbridge dampers at the two side of a suspension clamp. The top ends of the guiding members are fixedly arranged at the two ends of a guide rail; the middle portion of the guide rail is a bent portion protruding outwardly with respect to the suspension clamp, and the plane, where the bent portion locates, is parallel to a ground wire; and therefore, the robot is allowed to move to the guide rail along the guiding members through moving wheels thereof, passing across the suspension clamp and the stockbridge dampers. The barrier-free way is simple in structure and convenient to install, and does not change mechanical properties and electrical properties of the ground wire straight line poles and the stockbridge dampers.

The invention discloses a preparation method of a stockbridge damper with high hardness and corrosion resistance, which comprises the steps of casting, cooling, polishing, inspection, steel strand blanking, galvanizing, riveting, plasma spraying, finished product testing, warehousing and the like, wherein the raw material of casting is HT200 or HT250 pearlite gray cast iron, then a hammer, a wireclamp and a steel strand are riveted, and the stockbridge damper is warehoused after plasma spraying and finished product testing. The preparation method of the stockbridge damper with high hardness and corrosion resistance changes the traditional stockbridge damper preparation method, the rust protection effect of the surface of the steel strand is improved through performing the galvanizing operation on the steel strand, the corrosion resistance of the stockbridge damper is improved, titanium aluminum nitride and a tungsten carbide carbon film to a melt or semi-melt state by using a plasma spraying technology, a tungsten carbide coating is formed on the surface of the stockbridge damper, and the hardness of the tungsten carbide coating can reach up to Rockwell hardness HRC60, so that thesurface hardness of the stockbridge damper is improved, the damage of the external environment to the stockbridge damper is reduced, and the overall firmness and safety of the stockbridge damper areimproved.

The invention relates to a detection method of an electrical apparatus. According to the technical scheme, the shockproof hammer detection method based on the deep learning algorithm comprises the following steps: 1, collecting video data containing a shockproof hammer, and taking images frame by frame to generate a data set; searching related images through a network, and adding the images into a data set; 2, preprocessing the collected data, and expanding the data to generate similar images; 3, marking the vibration damper in the collected data set to obtain coordinates of a candidate frame containing a target object; 4, marking the preprocessed data set, inputting the marked data set into a MobileNet V3 network, and extracting feature maps of three dimensions after network processing; 5, inputting the feature map into a Yolo V3 module for training; inputting the trained optimal neural network model parameters into the line patrol robot; and 6, enabling the line patrol robot to detect the stockbridge damper on the power transmission line. The method is good in safety and low in cost.

The invention relates to the field of artificial intelligence, and provides a vibration damper fault detection method and system based on intelligent pattern recognition, and the method and system employ a pattern recognition method for defect recognition, and comprise the steps: obtaining a surface gray image of a vibration damper; obtaining the uniformity of each pixel point on the surface gray level image of the shockproof hammer; obtaining a plurality of connected domains on the surface grayscale image of the shockproof hammer; calculating a reconstructed gray value of a pixel point in the connected domain to obtain a reconstructed gray image; segmenting the reconstructed grayscale image to obtain an in-contour image; if the texture exists in the image in the contour, judging that the stockbridge damper has defects; if no texture exists in the image in the contour, judging that the shockproof hammer is a qualified product; and classifying the defects of the shockproof hammer according to the texture shape in the image in the contour. Therefore, according to the damper fault detection method and system based on intelligent pattern recognition, defect detection and recognition can be achieved, and the detection efficiency is high.

The invention belongs to the field of electric power, in particular to a multifunctional ground wire winder. The multifunctional ground wire winder comprises a base, wherein a hydraulic lifting cylinder is fixedly arranged at the top of the base, and a rotating motor is fixedly arranged at the top of the hydraulic lifting cylinder; a rotating shaft is fixedly arranged at the top of the rotating motor, and a box body is fixedly arranged at the top of the rotating shaft; two baffle plates are arranged in the box body, the inner part of the box body is divided into three chambers through the two baffle plates, and the three chambers are respectively a junction pole chamber, a grounding pole chamber and a ground wire stockbridge damper chamber. The multifunctional ground wire winder realizes the automatic winding of a ground wire, can prevent the ground wire from being wound to the same position, and realizes the scattered winding of the ground wire on the outer wall of the box body; a junction pole, a grounding pole and a ground wire stockbridge damper are often simultaneously used. The multifunctional ground wire winder is placed in the box body, is convenient to take out, is practical, and saves space, labor and time.

An asymmetric Stockbridge damper including a clamp and two weights of unequal mass connected to the damper. The damper may further include one or two messenger strands connecting the weights to the clamp. The weights may be situated so that they are an unequal distance from the clamp. The damper may further include a base connected to the clamp, and the weights may be connected to the base. The weights may be bell-shaped. The weights may have smooth contours. The clamp may use a breakaway bolt. The clamp may be designed for high temperature conductor applications. The messenger strands may be made of a 19-strand cable. The messenger strands may be attached to end of the weights and flushed to those ends.

The invention discloses a power transmission line stockbridge damper surface defect detection device and a power transmission line stockbridge damper surface defect detection method, which belong to the technical field of power transmission line stockbridge damper surface defect detection. The power transmission line stockbridge damper surface defect detection device comprises a pay-off mechanism,a reset line, a displacement mechanism, a detection mechanism, a power transmission cable and a detection system. After a line detection worker climbs to a power transmission line tower, an insulating roller is clamped on the power transmission cable and rolls downwards along the power transmission cable; when a bracket transverse plate moves to the upper parts of stockbridge dampers, the stockbridge dampers are magnetized and is gradually close to a saturation state under the action of a direct-current magnetic field emitted by an electromagnetic disc; a leaked abnormal magnetic field is captured and detected by means of a magnetic sensor, and a detection result is sent to the detection system; the background personnel can observe the surface defect conditions of the stockbridge dampersin real time through using a platform terminal and judge whether the stockbridge dampers reach a replacement standard or not, the stockbridge dampers does not need to be dismounted one by one in the whole detection process, workers only need to check the stockbridge dampers on the power transmission line tower, and the use process is safer.

Stockbridge dampers are provided. A Stockbridge damper includes a first clamp, and a second clamp spaced along a longitudinal axis from the first clamp, wherein a distance is defined along the longitudinal axis between the first clamp and the second clamp. A Stockbridge damper further includes a wire strand extending generally along the longitudinal axis through and between the first clamp and the second clamp, the wire strand including a first end portion extending from a distal side of the first clamp, a second end portion extending from a distal side of the second clamp, and an intermediate portion extending between proximal sides of the first and second clamps. A Stockbridge damper further includes a first weight connected to the first end portion of the wire strand, and a second weight connected to the second end portion of the wire strand.

The invention relates to a non-dismantle stockbridge damper type wire stringing cart comprising two poles; a base board is connected between bottoms of the two poles; two pedals are hung below the base board; two protection ropes are connected between middle portions of the two poles; a support cross bar is connected between upper portions of the two poles; the top of each pole is respectively connected with a square support frame formed by two vertical rods and two transverse rods; two vertical rods of the support frame are respectively rotatably connected with a main pulley; the middle portion of the vertical rod is rotatably connected with an auxiliary connecting rod extending to the diagonal outer upper side; the end of the auxiliary connecting rod is connected with an auxiliary pulley. The advantages are that the non-dismantle stockbridge damper type wire stringing cart is reasonable in structure design, so workers can walk through without dismantling the stockbridge damper, thus greatly saving time, improving work efficiency, and the non-dismantle stockbridge damper type wire stringing cart is safer and more convenient in usage.

The invention discloses a self-locking electric stockbridge damper, which comprises a wire clamp unit, a connecting unit and hammerhead units. The wire clamp unit comprises a wire clamp hook and a cladding plate arranged at the neck part of the wire clamp hook; the connecting unit is arranged at the bottom of the wire clamp hook and comprises a connecting shell and a connecting assembly arranged in the connecting shell; and the hammerhead units are symmetrically arranged on the two sides of the connecting unit, and each hammer head unit comprises a first connecting rod, a second connecting rod and hammer heads arranged at the ends of the two connecting rods. The wire clamp unit is of a movable clamping structure, the movable cladding plate of the wire clamp unit is driven by the connecting unit, and the driving force of the connecting unit comes from the deflection effect when the hammer heads are placed; when the hammer heads are placed from a vertical state to a horizontal state, the connecting rods of the hammer heads push the driving rod to move upwards through power generated when the hammer heads are placed, and then the cladding plate and the wire clamp hook are pushed to be clamped on the power cable to form a fixed structure; and the installation process is simple, and connection is convenient.

The embodiment of the invention discloses a stockbridge damper defect detection method and device, equipment and a storage medium. The method comprises the following steps: acquiring a scaled image of a to-be-detected image under at least one scale after feature extraction; wherein the to-be-detected image comprises the to-be-detected shockproof hammer; processing each scaled image to obtain a scaled feature map under at least one scale; performing feature enhancement on the at least one zoomed image to obtain a residual enhancement image; fusing the residual enhancement image and the scaled feature images under each scale to obtain a fused feature image; and determining the defect condition of the to-be-detected shockproof hammer in the to-be-detected image according to the fused feature map. The method has the advantages that the feature information lost in calculation of the scaled feature graph can be supplemented by generating the residual enhancement graph, the richness of the feature information in the fused image is improved, the defect detection precision is further improved, and the accuracy requirement in line inspection is met.

The invention discloses a stockbridge damper defect detection method based on dynamic adaptive weight loss. The method specifically comprises the following steps: making stockbridge dampers and a defect training data set and a test data set of the stockbridge dampers; constructing a dynamic adaptive weight network to obtain a dynamic adaptive loss function weight coefficient, and constructing a stockbridge damper defect target detection algorithm model based on the dynamic adaptive loss function weight on the basis of the weight coefficient; according to the training data set, training the stockbridge damper based on the dynamic adaptive loss function weight and the defect target detection algorithm model to obtain a trained stockbridge damper defect target detection algorithm model; enabling the test data set to sequentially pass through the trained stockbridge damper defect target detection algorithm model to obtain stockbridge damper defect detection results; according to the method, end-to-end stockbridge damper and defect detection of the stockbridge damper can be simultaneously achieved through one model, the detection efficiency is improved, only a small number of parameters are introduced in the training process, parameters are not introduced in the testing process, and the detection precision is greatly improved.

The invention discloses a quickly-assembled stockbridge damper tool. The tool comprises: a wire clamp unit which comprises a wire clamp rod and an arc-shaped clamping plate arranged at the neck of the wire clamp rod; a connecting unit arranged at the bottom of the wire clamp rod and comprising a connecting shell, a connecting assembly arranged in the connecting shell and a limiting fastener arranged on the side wall of the top of the connecting shell; and hammer head units symmetrically arranged on the two sides of the connecting unit, wherein each hammer head unit comprises a first connecting rod, a second connecting rod and hammer heads arranged at the ends of the two connecting rods. The wire clamp unit is of a movable clamping structure, a movable arc-shaped clamping plate of the wire clamp unit is driven by the connecting unit, and the driving force of the connecting unit comes from the deflection effect when the hammer head is placed; and when the hammer heads are placed from a vertical state to a horizontal state, the connecting rod bodies of the hammer heads push the driving rod to move upwards so as to push the arc-shaped clamping plate to be inserted into the wire clamping rod, the connecting structure is simple, and the installation process of the shockproof hammer can be greatly simplified on the premise that stable connection is guaranteed.