An automatic rotating mechanism for replacing insulators

Abstract

The invention discloses an automatic rotating mechanism for replacing insulators, comprising a clamping plate 1 and a clamping plate 2, the tops of which are provided with a clamping driving mechanism; inner pressure rings are rotatably provided inside the clamping plates 1 and 2, and a rotating driving mechanism is provided on one side of the clamping plate 2; heating mechanisms are provided on both sides of the clamping plates 1 and 2; a supporting connecting plate is slidably provided on the clamping plate 1, and a traction mechanism is provided on the supporting connecting plate; a fixing plate is provided on the top of the supporting connecting plate, and a lifting mechanism is provided on the fixing plate; and a control mechanism is also provided on the fixing plate. The operation is convenient, and the overall weight of the traction bracket used is relatively low. With the cooperation of the control mechanism and the heating mechanism, the insulator notch can be de-iced in winter, thereby ensuring the operability of replacing the insulator in winter.

Description

Technical Field

[0001] The invention belongs to the technical field of power facility maintenance, and in particular relates to an automatic rotating mechanism for replacing insulators. Background Art

[0002] High-altitude lines usually require insulator strings to fix high-voltage lines on tension towers or straight towers. Insulator strings are generally composed of multiple insulators connected in series, that is, the plug-in end of the front end of the insulator is plugged into the notch at the rear end of the adjacent insulator.

[0003] However, suspension insulator strings are in an open-air environment for a long time. Under the influence of environmental factors such as wind and sun, the internal stress of the insulators will be unbalanced, resulting in low zero values ​​of the insulators or even structural damage, which will increase the number of damage defects in the suspension insulator strings. In order to ensure the safety of power transmission, the insulator strings need to be inspected regularly and the damaged insulators need to be replaced.

[0004] The invention patent with the authorization announcement number: CN110581455B discloses an automatic replacement device for high-altitude suspended insulators, including: a retractable frame, both sides of the retractable frame are respectively mounted on the insulator steel caps located at the two ends of the insulator string; an insulator rotating mechanism, the insulator rotating mechanism is arranged on the retractable frame, and is fixedly connected to the steel cap of the insulator adjacent to the front end of the insulator to be replaced; the insulator rotating mechanism includes: a second clamp, the second clamp is sleeved and fixed on the steel cap of the insulator adjacent to the front side of the insulator to be replaced, and the second clamp is respectively connected with a first connecting vertical rod and a second connecting vertical rod above and below, and the connecting line of the first connecting vertical rod and the second connecting vertical rod is arranged perpendicular to the axis of the steel cap; a second hydraulic cylinder and a third hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are respectively fixedly connected to two sleeve seats, and the second telescopic end of the second hydraulic cylinder is fixedly connected to the first connecting vertical rod, and the third telescopic end of the second hydraulic cylinder is fixedly connected to the second connecting vertical rod; wherein the second hydraulic cylinder and the third hydraulic cylinder are both electrically connected to the controller. The second hydraulic cylinder and the third hydraulic cylinder can realize the insulator rotation of 180 degrees, so that the notch on the insulator faces upward, which is convenient for the removal of the insulator to be replaced. The insulator rotation mechanism is activated to rotate the insulator adjacent to the front end of the insulator to be replaced by 90 degrees, so that the notch at the rear end of the insulator faces upward, which is convenient for the removal of the insulator to be replaced.

[0005] It can be seen that in this type of automatic replacement device for high-altitude suspended insulators, under the traction support of the retractable frame (equivalent to the traction bracket in the prior art), slack occurs between the insulators on the insulator string, and the hydraulic cylinders on both sides of the insulator rotating mechanism push the clamps fixed on the insulator to be replaced toward each other, so that the clamps are rotated 180 degrees, so that the notch of the insulator faces upward, thereby facilitating the removal of the insulator.

[0006] However, during the insulator rotation operation, this type of automatic replacement device for high-altitude suspended insulators requires high-altitude maintenance personnel to install and clamp the clamp on the insulator to be replaced, which increases the difficulty of high-altitude operations; before rotating the insulator, the high-altitude maintenance personnel need to install and fix the sleeve seat and each telescopic end one by one to achieve the installation of the clamp, which further increases the difficulty of high-altitude operations; since the top support of the hydraulic cylinders on both sides is used to achieve the rotation of the insulator and the clamp, the traction bracket is designed to be wider to meet actual needs, so the overall weight of the traction bracket is heavier; when replacing insulators in winter, if there is ice in the notch of the insulator, the rotation resistance of the insulator will be greatly increased. Summary of the invention

[0007] The purpose of the present invention is to provide an automatic rotating mechanism for replacing insulators, and the technical problem to be solved is to provide an automatic rotating mechanism which is convenient for high-altitude operation and suitable for rotating operation under the condition of ice formation in the insulator notch.

[0008] To achieve the above object, the present invention provides the following technical solutions: an automatic rotating mechanism for replacing an insulator, comprising a clamping plate 1 and a clamping plate 2, wherein a clamping driving mechanism is provided on the top of the clamping plate 1 and the clamping plate 2, and the clamping driving mechanism is used to drive the clamping plate 1 and the clamping plate 2 to move toward and in the opposite direction;

[0009] The clamping plate 1 and the clamping plate 2 are both rotatably provided with an inner pressure ring, the inner pressure ring is a semicircular ring, and a rotation drive mechanism is provided on one side of the clamping plate 2, the rotation drive mechanism is used to drive the insulator to rotate after the clamping drive mechanism drives the inner pressure ring to press the insulator tightly;

[0010] The clamping plate 1 and the clamping plate 2 are provided with a heating mechanism, and the heating mechanism is used to heat the insulator through the inner pressure ring;

[0011] A supporting connecting plate is slidably arranged on the first clamping plate, and a traction mechanism is arranged on the first clamping plate. The traction mechanism is used to drive the first clamping plate and the second clamping plate to move in the direction of the traction mechanism;

[0012] A fixing plate is provided on the top of the supporting connecting plate, and a lifting mechanism is provided on the fixing plate. The lifting mechanism is used to be fixed on the traction bracket and drive the insulator to move up and down;

[0013] The fixing plate is also provided with a control mechanism, which is used to control the operation of the clamping drive mechanism, the rotating drive mechanism, the heating mechanism, the traction mechanism and the lifting mechanism.

[0014] In order to achieve the clamping of the insulator, preferably, the clamping drive mechanism includes a mounting plate 1 arranged on one side of the top of the clamping plate 1, an electric telescopic rod 1 is installed on one side of the mounting plate 1, the top rod of the electric telescopic rod 1 is connected to the mounting plate 2 through an electronic tension measuring meter, and the bottom of the mounting plate 2 is connected to the top of the clamping plate 2;

[0015] A telescopic rod is arranged between the first mounting plate and the second mounting plate.

[0016] In order to realize the rotation of the insulator, preferably, the rotation drive mechanism includes a gear ring arranged on the outside of the inner pressure ring, a slot is provided on one side of the second clamping plate and an electric telescopic rod 2 is provided in the slot, the top rod of the second electric telescopic rod is connected to a top connecting plate, a rack is connected to one side of the bottom of the top connecting plate, an opening is provided in the second clamping plate and the gear ring is located in the opening, sliding bars are provided on both sides of the opening, bar grooves are provided on both sides of the rack and the sliding bar is inserted into the bar grooves, and the rack engages the gear ring.

[0017] In order to ensure the rotation of the insulator and to achieve uniform heating of the insulator, preferably, the heating mechanism includes a heat-insulating ring fixedly arranged in the first clamping plate and the second clamping plate, a heat-conducting ring is arranged in the heat-insulating ring, the inner pressure ring is slidably arranged in the heat-conducting ring, and an anti-slip convex mesh is arranged in the inner pressure ring;

[0018] A support box is provided on the sides of the clamping plate 1 and the clamping plate 2, an electronic thermostat is provided in the support box, a heating rod is provided on the support box, and an end of the heating rod is fixedly provided on the heat-conducting ring;

[0019] A temperature sensor is arranged on the heat-conducting ring, and a transmission line of the temperature sensor passes through the first clamping plate and the second clamping plate to the support box.

[0020] In order to achieve the rotation stability of the inner pressure ring and the insulator driven by the rotary drive mechanism and the safety of the initial state, preferably, the rotary drive mechanism further includes a support ring arranged outside the inner pressure ring, the inner wall of the heat conductive ring is provided with a ring groove and the support ring is slidably arranged in the ring groove;

[0021] A support groove is provided in the support ring, and a spring 2 is provided in the support groove. A pressure head 2 is slidably provided in the support groove and the spring 2 is elastically supported on the pressure head 2. A head groove 2 is provided on the middle side of the ring groove and the head of the pressure head 2 is pressed in the head groove 2 by the elastic support of the spring 2.

[0022] In order to facilitate the adjustment of the clamping position, preferably, a limit plate is provided at one end of the supporting connecting plate, a mounting tube is provided at one side of the clamping plate, a pressure plate is slidably provided in the mounting tube, a spring is provided in the mounting tube and the spring is elastically supported on one end of the mounting tube and the pressure plate;

[0023] A pressing head 1 is arranged at one end of the pressing plate, and a head groove 1 is evenly and transversely arranged on the supporting connecting plate, and the head of the pressing head 1 is inserted into the head groove 1.

[0024] In order to facilitate moving the removed insulator to the high-altitude maintenance personnel, preferably, the traction mechanism includes a motor arranged on the supporting connecting plate, the rotor shaft of the motor passes through the supporting connecting plate and is connected to a winding disk, a traction rope is wound on the winding disk, and one end of the traction rope is connected to a clamping plate.

[0025] In order to facilitate lifting the removed insulator, preferably, the lifting mechanism includes an electric telescopic rod three arranged on the fixed plate, the top rod of the electric telescopic rod three is connected to a supporting bearing seat, the inner ring of the bearing of the supporting bearing seat is connected to a fixed shaft and the bottom of the fixed shaft is connected to a rotating disk, the bottom center of the rotating disk is connected to a tightening stud, and a gasket is sleeved on the tightening stud;

[0026] The lifting mechanism also includes a support screw sleeve arranged on the top of the clamping seat of the traction bracket, and the tightening stud is locked in the support screw sleeve.

[0027] In order to improve the working efficiency of the clamping drive mechanism, the rotating drive mechanism, the heating mechanism, the traction mechanism and the lifting mechanism, preferably, the control mechanism includes a protection box and a fixing frame arranged on the fixing plate, an industrial computer is arranged on the top of the protection box, and a development board is arranged in the protection box;

[0028] A driver group is arranged on the fixing frame;

[0029] The development board is provided with a control module, which is used to combine the tension value uploaded by the electronic tension meter and the temperature sensor and temperature value, and cooperate with the industrial computer to control the operation of the clamping drive mechanism, the rotating drive mechanism, the heating mechanism, the traction mechanism and the lifting mechanism.

[0030] Preferably, the control module includes a temperature value receiving module, a tension value receiving module and a control signal centralized processing module, wherein the temperature value receiving module is used to receive the temperature signal uploaded by the temperature sensor and convert the temperature signal into a temperature value, the tension value receiving module is used to receive the tension value obtained by the electronic tension measuring meter in real time, and the control signal centralized processing module is used to receive the control signal input by the industrial computer and process and output the control signal according to the type classification;

[0031] The control signal centralized processing module is connected to the steering speed control module 1, the steering speed control module 2, the steering speed control module 3, the steering speed control module 4 and the temperature control module, the steering speed control module 1 is used to control the operation of the clamping drive mechanism, the steering speed control module 2 is used to control the operation of the rotary drive mechanism, the steering speed control module 3 is used to control the operation of the traction mechanism, the steering speed control module 4 is used to control the operation of the lifting mechanism, and the temperature control module is used to control the operation of the heating mechanism;

[0032] The temperature value receiving module and the tension value receiving module are connected to a comparison and analysis module for comparing the real-time received temperature value and tension value with the standard temperature value and standard tension value stored therein in real time; the comparison and analysis module is connected to a steering speed control module 1 and a temperature control module for controlling the steering speed control module 1 to issue a stop operation instruction and the temperature control module to issue a constant temperature heating instruction when the real-time received temperature value and tension value reach the standard temperature value and standard tension value stored therein.

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows: in this type of automatic rotating mechanism for replacing insulators, there is no need to manually install the clamped insulators, and the positions of the clamping plate one and the clamping plate two can be moved according to actual needs to realize the replacement of insulators at different positions, which is easy to operate; the demand for rotation replacement can be met when the design width of the traction bracket is relatively small, so the overall weight of the traction bracket used is relatively low; and with the cooperation of the control mechanism and the heating mechanism, the notch of the insulator can be de-iced in winter, thereby ensuring the operability of replacing insulators in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a top view schematic diagram of the connection of the traction bracket in the prior art;

[0035] Figure 2 It is a top view schematic diagram of the installation of the automatic rotating mechanism and the traction bracket in the present invention;

[0036] Figure 3 It is a front view schematic diagram of the present invention;

[0037] Figure 4 for Figure 3 Schematic diagram of top view;

[0038] Figure 5 for Figure 3 Schematic diagram from top view;

[0039] Figure 6 for Figure 5 A schematic diagram of the structure at a is enlarged;

[0040] Figure 7 for Figure 3 A right side schematic diagram of

[0041] Figure 8 for Figure 7 A partial cutaway diagram of

[0042] Fig. 9 for Figure 7 A rear view schematic diagram of

[0043] Fig.10 for Fig. 9 A partial cutaway diagram of

[0044] Fig.11 It is a lateral schematic diagram of two locations of the splint of the present invention;

[0045] Fig.12 for Fig.10 Schematic diagram of the section at point b;

[0046] Fig.13 It is a partial cutaway schematic diagram of the protection box of the present invention;

[0047] Fig.14 It is a schematic diagram of the connection of various modules in the control module of the present invention.

[0048] In the figure: 1 clamping plate 1, 2 clamping plate 2, 3 mounting plate 1, 4 electric telescopic rod 1, 5 electronic tension measuring meter, 6 mounting plate 2, 7 inner pressure ring, 8 anti-slip convex net, 9 tooth ring, 10 electric telescopic rod 2, 11 top connecting plate, 12 rack, 13 insulation ring, 14 heat conducting ring, 15 support ring, 16 support connecting plate, 17 mounting cylinder, 18 pressure plate, 19 spring 1, 20 pressure head 1, 21 limit plate, 22 motor, 23 winding Plate, 24 traction rope, 25 support box, 26 electronic thermostat, 27 heating rod, 31 spring two, 32 pressure head two, 33 temperature sensor, 34 fixing plate, 35 electric telescopic rod three, 36 support bearing seat, 37 turntable, 38 tightening stud, 39 gasket, 40 protection box, 41 industrial computer, 42 fixing frame, 43 driver group, 101 support screw sleeve, 121 slide bar, 301 telescopic rod, 401 development board. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0050] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, an insulator replacement automatic rotation mechanism, comprising a clamping plate 1 and a clamping plate 2, the tops of the clamping plate 1 and the clamping plate 2 are provided with a clamping drive mechanism, the clamping drive mechanism is used to drive the clamping plate 1 and the clamping plate 2 to move toward and in the opposite direction;

[0051] By setting the clamping drive mechanism, the clamping plate 1 and the clamping plate 2 2 can move toward each other and in the opposite direction.

[0052] An inner pressure ring 7 is rotatably arranged inside both the clamping plate 1 and the clamping plate 2. The inner pressure ring 7 is a semicircular ring structure. The inner pressure ring 7 is in direct contact with the insulator. Since it is rotatably arranged, it provides conditions for the rotary drive mechanism to drive it to rotate. A rotary drive mechanism is arranged on one side of the clamping plate 2. The rotary drive mechanism is used to drive the insulator to rotate after the clamping drive mechanism drives the inner pressure ring 7 to press the insulator tightly.

[0053] The rotary drive mechanism provides a rotary power to drive the inner pressure rings 7 on both sides to rotate in the clamping plate 1 and the clamping plate 2, so that the plug-in end of the insulator can be aligned with the notch, making it easy to remove the insulator from the insulator string.

[0054] A heating mechanism is provided on the clamping plate 1 and the clamping plate 2, and the heating mechanism is used to heat the insulator through the inner pressure ring 7;

[0055] Under such an arrangement, the insulator is heated by the heating mechanism to melt the ice in the notch of the insulator.

[0056] A supporting connecting plate 16 is slidably provided on the clamping plate 1. More specifically, a plate hole is provided on the upper front side of the clamping plate 1, and the supporting connecting plate 16 slides through the plate hole. A traction mechanism is installed on the supporting connecting plate 16, and the traction mechanism is used to drive the clamping plate 1 and the clamping plate 2 to move in the direction of the traction mechanism.

[0057] When the insulator rises to a certain height, the traction mechanism can be used to move the insulator to a position closer to the high-altitude maintenance personnel, making it easier to replace the insulator.

[0058] The top bolts of the supporting connecting plate 16 are fixed with a fixing plate 34, and a lifting mechanism is provided on the fixing plate 34. The lifting mechanism is used to be fixed on the traction bracket and drive the insulator to move up and down;

[0059] Through the action of the lifting mechanism, the insulator is lifted and leaves the insulator string.

[0060] A control mechanism is also provided on the fixed plate 34, and the control mechanism is used to control the operation of the clamping drive mechanism, the rotating drive mechanism, the heating mechanism, the traction mechanism and the lifting mechanism.

[0061] See also Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 The clamping drive mechanism includes a mounting plate 13 bolted to the front side of the top of the clamping plate 1, an electric telescopic rod 14 is bolted to the rear side of the mounting plate 13, the electric telescopic rod 14 is a stepper motor driven electric telescopic rod, the top rod flange of the electric telescopic rod 14 is connected to the base of the electronic tension measuring meter 5, and the force measuring traction rod flange of the electronic tension measuring meter 5 is connected to the mounting plate 26, and the bottom of the mounting plate 26 is bolted to the top of the clamping plate 22;

[0062] When the clamping drive mechanism drives the clamping plate 1 and the clamping plate 2 to move toward each other so that the inner pressure ring 7 is pressed against the outer surface of the insulator, the traction force of the electric telescopic rod 1 4 on the clamping plate 2 2 is measured by the electronic tension measuring meter 5.

[0063] A telescopic rod 301 is bolted between the mounting plate 1 3 and the mounting plate 2 6 and on both sides of the electric telescopic rod 1 4. The telescopic rod 301 is composed of a sliding rod and a sliding plug-in sleeve rod. Through the arrangement of the telescopic rods 301 on both sides, the electric telescopic rod 1 4 drives the clamping plate 1 and the clamping plate 2 2 to move toward or in the opposite direction more stably.

[0064] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The rotary drive mechanism includes a gear ring 9 integrally arranged on the left outer side of the inner pressure ring 7, a slot is provided on the rear side of the second clamp plate 2, and an electric telescopic rod 2 10 is fixed to the inner bottom bolt of the slot, the electric telescopic rod 2 10 is a stepper motor driven electric telescopic rod, the top rod of the electric telescopic rod 2 10 is bolted to a top connecting plate 11, and a rack 12 is fixed to the bottom front bolt of the top connecting plate 11, an opening is provided in the second clamp plate 2 and the rear side of the gear ring 9 is inserted into the opening, slide bars 121 are integrally arranged on both sides of the opening, strip grooves are provided on both sides of the rack 12, and the slide bar is slidably inserted into the strip groove, and the sliding cooperation between the slide bar and the strip groove makes the up and down movement of the rack 12 more stable; the rack 12 meshes with the gear ring 9.

[0065] When the left sides of clamp plate 1 and clamp plate 2 contact the tail plate of the insulator, the clamping drive mechanism drives clamp plate 1 and clamp plate 2 to fit together, and the inner pressure ring 7 is combined into a full circular ring structure. The top rod of the electric telescopic rod 2 10 is extended and retracted to drive the rack 12 to move up and down. Due to the meshing cooperation between the rack 12 and the gear ring 9, the inner pressure ring 7 is driven to rotate. Since the inner pressure ring 7 is pressed tightly against the outer wall of the insulator, the insulator can be driven to rotate.

[0066] See also Fig.10 , Fig.11 and Fig.12The heating mechanism includes a heat-insulating ring 13 fixed in the clamping plate 1 and the clamping plate 2 by bolts. The heat-insulating ring 13 is a semicircular ring structure. The heat-insulating ring 13 is a semicircular ring structure made of a ceramic fiber heat-insulating block. A heat-conducting ring 14 is fixed by bolts in the heat-insulating ring 13. The heat-conducting ring 14 is made of a carbide copper alloy and has good lubricity and thermal conductivity. The inner pressure ring 7 is slidably arranged in the heat-conducting ring 14, and an anti-skid convex mesh 8 is integrally arranged in the inner pressure ring 7. The setting of the anti-skid convex mesh 8 can increase the friction resistance between the inner pressure ring 7 and the outer wall of the insulator;

[0067] When the inner wall of the inner pressure ring 7 is pressed against the outer wall of the insulator, the heat of the heater is effectively transferred to the inner pressure ring 7 through the heat-conducting ring 14 and then to the insulator through the anti-slip convex mesh 8, thereby heating the insulator.

[0068] The side screws of the clamping plate 1 and the clamping plate 2 are fixed with a support box 25, and the electronic thermostat 26 is fixed with screws in the support box 25. The main power supply access end of the electronic thermostat 26 is connected to the external power supply through a cable. A heating rod 27 is bolted to the support box 25. The end of the heating rod 27 passes through the clamping plate 1, the clamping plate 2 and the insulation ring 13, and is bonded to the heat-conducting ring 14 with a heat-conducting adhesive, wherein the power output end of the electronic thermostat 26 is connected to the power line of the heating rod 27;

[0069] The heating temperature of the heating rod 27 is adjusted by adjusting the heating temperature value of the electronic thermostat 26 , and the heating rod 27 can transfer the heat generated by the heating rod 27 to the heat-conducting ring 14 .

[0070] A temperature sensor 33 is screwed to the middle of the heat-conducting ring 14 . The temperature-sensing surface of the temperature sensor 33 is in contact with the heat-conducting ring 14 . The transmission line of the temperature sensor 33 passes through the clamping plate 1 1 and the clamping plate 2 2 to the support box 25 .

[0071] The temperature sensor 33 senses the heating temperature of the heat-conducting ring 14, thereby providing conditions for the control mechanism to automatically control the heating temperature.

[0072] See also Fig.10 , Fig.11 and Fig.12 The rotary drive mechanism also includes a support ring 15 integrally arranged on the outer side of the inner pressure ring 7. The cross section of the support ring 15 is a trapezoidal shape with a wide outside and a narrow inside. The support ring 15 is an arc structure as a whole. The inner wall of the heat conducting ring 14 is provided with a ring groove. The cross section of the ring groove is a trapezoidal shape with a wide outside and a narrow inside. The ring groove is a semicircular ring groove as a whole. When the two inner pressure rings 7 are fitted together, the ring grooves form a full-circle ring groove, and the support ring 15 is slidably arranged in the ring groove.

[0073] The sliding insertion cooperation between the support ring 15 and the ring groove makes the rotation of the inner pressure ring 7 in the clamping plate 1 and the clamping plate 2 more stable.

[0074] A support groove is provided in the support ring 15, and the support groove is a circular groove. A spring 2 31 is inserted into the support groove. The spring 2 31 is a compression rebound type. A pressing head 2 32 is slidably arranged in the support groove and the spring 2 31 is elastically supported on the pressing head 2 32. A head groove 2 is provided on the middle side of the ring groove and the head of the pressing head 2 32 is pressed in the head groove 2 by the elastic support of the spring 2 31.

[0075] When the head of the pressing head 2 32 is not inserted into the head slot 2, the spring 2 31 is in a compressed state, and when the pressing head 2 32 is aligned with the head slot 2, the hemispherical head of the pressing head 2 32 is inserted into the head slot 2 through the elastic support of the spring 2 31; under such a setting, when the insulator is not rotated, the head of the pressing head 2 32 is inserted into the head slot 2 through the elastic support, so that the position of the inner pressure ring 7 is stabilized to prevent it from falling out of the clamping plate 1 and the clamping plate 2, and when the rotary drive mechanism is running, the pressing head 2 32 is subjected to lateral pressure, and its hemispherical head is subjected to lateral pressure by the head slot 2, so that the pressing head 2 32 moves toward the inner direction of the support slot until it is separated from the head slot 2, until the pressing head 2 32 is aligned with the head slot 2 on the other side, and the hemispherical head of the pressing head 2 32 is inserted into the head slot 2 on that side through the elastic support of the spring 2 31.

[0076] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 One end of the support link plate 16 is bolted to a limit plate 21, and the limit plate 21 is provided to prevent the support link plate 16 from escaping from the clamp plate 1. A mounting tube 17 is bolted to the upper front side of the clamp plate 1, and a pressure plate 18 is slidably provided in the mounting tube 17. A spring 19 is inserted into the mounting tube 17, and the spring 19 is a compression-rebound type. The spring 19 is elastically supported on one end of the mounting tube 17 and the pressure plate 18;

[0077] A pressing head 20 is fixed with bolts at one end of the pressing plate 18, and a head groove 1 is evenly and transversely arranged on the supporting connecting plate 16. The head groove 1 is a hemispherical groove, and the hemispherical head of the pressing head 20 is inserted into the head groove 1.

[0078] When the pressing head 20 is inserted into the head slot 1, the spring 19 is in a preliminary compression state. The elastic support of the spring 19 makes the pressing head 20 more stable when inserted into the head slot 1; thereby, the distance between the limit plate 21 and the clamping plate 1 is preliminarily stabilized. Such a setting can be suitable for rotating insulators of different rows when the lifting mechanism of the automatic rotating mechanism is fixed on the top of the clamping seat of the traction bracket.

[0079] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The traction mechanism includes a motor 22 bolted to the supporting connecting plate 16, the motor 22 is a stepping motor, the rotor shaft of the motor 22 passes through the supporting connecting plate 16 and is flange-connected to a winding disk 23, a traction rope 24 is wound on the winding disk 23, one end of the traction rope 24 is fused to the disk groove of the winding disk 23, and the other end of the traction rope 24 is fused to the clamping plate 1.

[0080] Driven by the motor 22, the winding disk 23 is driven to rotate, thereby driving the traction rope 23 to wind or release the traction rope 24; when the winding disk 23 winds the traction rope 23, the side of the head slot 1 presses against the pressing head 20, forcing the spring 19 to compress, and the pressing head 20 moves toward the mounting tube 17 until it is separated from the head slot 1. When the pressing head 20 is aligned with the next head slot 1, the pressing head 20 is reinserted into the head slot 1 through the elastic support of the spring 19. In this way, when the motor 22 stops running, the pressing head 20 is inserted into the head slot 1, thereby stabilizing the distance between the splint 1 and the fixing plate 34.

[0081] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The lifting mechanism includes an electric telescopic rod 35 fixed by bolts on a fixed plate 34, a top rod flange of the electric telescopic rod 35 is connected to the top of a support bearing seat 36, an inner ring of a bearing of the support bearing seat 36 is inserted into the fixed shaft through interference, and a rotary disk 37 is integrally provided at the bottom of the fixed shaft, a tightening stud 38 is integrally provided at the center position of the bottom of the rotary disk 37, and a gasket 39 is sleeved on the tightening stud 38;

[0082] The lifting mechanism further comprises a support screw sleeve 101 welded to the top of the clamping seat of the traction bracket, and the tightening stud 38 is locked in the support screw sleeve 101 .

[0083] When the tightening stud 38 is locked in the supporting screw sleeve 101, the rotary disk 37 presses the gasket 39 against the top of the supporting screw sleeve 101, thereby stabilizing the connection state between the tightening stud 38 and the supporting screw sleeve 101. The supporting bearing seat 36 is used to rotate and support the fixed shaft. When the top rod of the electric telescopic rod 35 is extended, the disassembled insulator is separated from the insulator string upward. The disassembled insulator can be swung to a direction that is convenient for high-altitude maintenance personnel to take by swinging the supporting connecting plate 16.

[0084] See also Figure 2 , Figure 3 , Figure 4 , Figure 7 and Fig.13The control mechanism includes a protection box 40 and a fixing frame 42 fixed on the fixing plate 34 by screws, an industrial computer 41 is fixed on the top of the protection box 40 by screws, and a development board 401 is fixed in the protection box 40 by insulating pad screws;

[0085] A driver group 43 is bolted to the fixing frame 42. The driver group 43 is composed of four fixed drivers. The main power input end of each driver in the driver group is connected to the external power supply through a cable, and the power control output end of each driver is respectively connected to the power controlled end of the electric telescopic rod 1 4, the electric telescopic rod 2 10, the electric telescopic rod 3 35 and the motor 22;

[0086] A control module is provided on the development board 401, which is used to combine the tension value uploaded by the electronic tension meter 5 and the temperature sensor 33 and the temperature value, and cooperate with the industrial computer 41 to control the operation of the clamping drive mechanism, the rotating drive mechanism, the heating mechanism, the traction mechanism and the lifting mechanism.

[0087] It is worth noting that the exterior surfaces of the automatic rotating mechanism are coated with insulating paint.

[0088] See also Fig.14 , the control module includes a temperature value receiving module, a tension value receiving module and a control signal centralized processing module. Furthermore, the signal access pin of the temperature value receiving module is connected to the transmission line of the temperature sensor 33, and the temperature value receiving module is used to receive the temperature signal uploaded by the temperature sensor 33 and convert the temperature signal into a temperature value; the tension value receiving module is used to receive the tension value obtained by the electronic tension measuring meter 5 in real time, and the signal output line of the electronic tension measuring meter 5 is connected to the signal access pin of the tension value receiving module; the signal access end of the industrial computer 41 is connected to the signal access end of the control signal centralized processing module through the transmission line, and the industrial computer 41 reaches a transmission agreement with the control signal centralized processing module. The control signal centralized processing module is used to receive the control signal input by the industrial computer 41, and classify and process the control signal according to the type and output it. Furthermore, each type of control signal in the industrial computer 41 is encrypted when it is output, and the control signal centralized processing module identifies each encryption type, and matches the steering speed control module 1, steering speed control module 2, steering speed control module 3, steering speed control module 4 and temperature control module with corresponding decrypted control limits, thereby avoiding control signal disorder;

[0089] The control signal centralized processing module is connected with a steering speed control module 1, a steering speed control module 2, a steering speed control module 3, a steering speed control module 4 and a temperature control module. The steering speed control module 1 is used to control the operation of the clamping drive mechanism, and the signal access pin of the steering speed control module 1 is connected to the driver signal access end connected to the electric telescopic rod 1 4 through a transmission line; the steering speed control module 2 is used to control the operation of the rotary drive mechanism, and the signal access pin of the steering speed control module 2 is connected to the driver signal access end connected to the electric telescopic rod 2 10 through a transmission line; the steering speed control module 3 is used to control the operation of the traction mechanism, and the signal access pin of the steering speed control module 3 is connected to the driver signal access end connected to the motor 22 through a transmission line; the steering speed control module 4 is used to control the operation of the lifting mechanism, and the signal access pin of the steering speed control module 4 is connected to the driver signal access end connected to the electric telescopic rod 3 35 through a transmission line; the temperature control module is used to control the operation of the heating mechanism, and the signal access pin of the temperature control module is connected to the signal input end of the electronic thermostat 26 through a transmission line;

[0090] It is worth noting that, under the control of the steering speed control module 1, the maximum extension length of the electric telescopic rod 14 satisfies: the inner pressure rings 7 on both sides can be inserted into the insulator from the upper part of the insulator, and the shortest retracted length of the electric telescopic rod 14 satisfies: the anti-slip convex net 8 in the inner pressure ring 7 is pressed against the outer wall of the insulator; under the control of the steering speed control module 2, when the top rod of the electric telescopic rod 20 is retracted to the shortest state, it can drive the inner pressure ring 7 to rotate 180 degrees forward, and when the top rod of the electric telescopic rod 20 is extended to the longest state, it can drive the inner pressure ring 7 to rotate 180 degrees counterclockwise; under the control of the steering speed control module 3, when the motor 22 drives the winding disk 23 to retract the traction rope 24, the distance between the clamping plate 1 and the fixed plate 34 is 40 degrees. When the position is 2 cm, the motor 22 stops running; and when the motor 22 drives the winding disk 23 to release the traction rope 24, after the motor 22 has completed the revolutions, the length of the traction rope 24 satisfies: manually push the clamping plate 1, and the clamping plate 1 can contact the limit plate 21; under the control of the steering speed control module 4, the top rod of the electric telescopic rod 3 35 extends to the maximum length to meet: drive the clamping plate 1 and the clamping plate 2 2 to rise until the insulator is completely separated from the insulator string and stops, and the top rod of the electric telescopic rod 3 35 retracts to the shortest length to meet: drive the plug-in end of the front end of the insulator to be replaced and its notch to be disengaged downward from the insulators on both sides thereof; under the control of the temperature control module, the electronic thermostat 26 controls the heating rod 27 to heat;

[0091] The temperature value receiving module and the tension value receiving module are connected to a comparison and analysis module, and the comparison and analysis module is used to compare the real-time received temperature value and tension value with the standard temperature value and standard tension value stored inside in real time;

[0092] Among them, the standard temperature value Q is 65°C, and the setting of the standard tension value P satisfies: the inner pressure ring 7 is stably pressed on the insulator, the inner pressure ring 7 and the insulator are smoothly driven to rotate through the rotation drive mechanism, and it is ensured that the inner pressure ring 7 will not damage the outer surface of the insulator.

[0093] The comparison and analysis module is connected to the steering speed control module 1 and the temperature control module. The comparison and analysis module is used to control the steering speed control module 1 to issue a stop operation command and control the temperature control module to issue a constant temperature heating command when the real-time received temperature value and tension value reach the internally stored standard temperature value and standard tension value.

[0094] It is worth noting that the to-be-executed instructions issued by the comparison and analysis module to the steering speed control module 1 and the temperature control module take precedence over the control signals issued by the control signal centralized processing module. Therefore, it is possible to clamp the insulator without damaging the insulator to be replaced, and when the standard temperature is reached, the insulator is heated at a constant temperature, thereby achieving de-icing in the notch of the insulator.

[0095] The working principle of this embodiment is as follows:

[0096] After installing the traction bracket, first pull out the R pins on the insulator to be replaced and the insulator on its left side, and use the traction bracket to press the insulator string as a whole, so that the plug-in ends on both sides of the insulator to be replaced move to the opening of the notch;

[0097] The control mechanism controls the top rod of the electric telescopic rod 35 of the lifting mechanism to extend, and the tightening stud 38 of the lifting mechanism is locked in the supporting screw sleeve 101, and then the clamping drive mechanism is controlled to open the clamping plate 1 and the clamping plate 2, and then the clamping plate 1 and the clamping plate 2 are manually pushed on the supporting connecting plate 16 until the left sides of the clamping plate 1 and the clamping plate 2 can fit the tail plate of the insulator to be replaced downward, and the top rod of the lifting mechanism is controlled to retract until the inner pressure ring 7 is completely inserted into the insulator to be replaced, and then the clamping drive mechanism is controlled to drive the clamping plate 1 and the clamping plate 2 to move toward each other so that the inner pressure ring 7 is stably pressed against the insulator to be replaced. Replace the outer wall of the insulator, then control the rotation drive mechanism to operate, so that the inner pressure ring 7 and the insulator to be replaced rotate 180 degrees and stop, then control the top rod of the lifting mechanism to continue to retract, so that the plug-in ends on both sides of the insulator to be replaced move downward to the opening of the notch, operate the traction bracket, release the insulating string, until the width of the area of ​​the removed insulator can pass upward through the insulator to be replaced, control the top rod of the lifting mechanism to extend, and control the traction mechanism to retract the traction rope 24, and rotate the support connecting plate 16 horizontally with the center of the support bearing seat 36 as the rotation center, until the insulator to be replaced moves in front of the high-altitude maintenance personnel;

[0098] During replacement, the clamping drive mechanism is controlled to drive the clamping plate 1 and the clamping plate 2 to open, so that the insulator can be removed, and a new insulator can be installed in the inner pressure ring 7 according to the same position, and the clamping drive mechanism is controlled to drive the clamping plate 1 and the clamping plate 2 to move toward each other so that the inner pressure ring 7 clamps the new insulator, and then the traction mechanism is controlled to release the traction rope 24, and the clamping plate 1 and the clamping plate 2 are pushed on the supporting connecting plate 16 to the position of the original state of removing the insulator, and the supporting connecting plate 16 is rotated horizontally with the center of the supporting bearing seat 36 as the rotation center until it is aligned with the removal state. Unload the insulator position, control the top rod of the lifting mechanism to retract, until the plug-in ends and notches on both sides of the new insulator are located below the plug-in ends and notches of the two insulators to be connected with it, operate the traction bracket, tighten the insulating string, and then control the top rod of the lifting mechanism to extend until the plug-in ends on both sides of the new insulator are fully inserted into the notch through the notch opening, then control the rotation drive mechanism to operate, so that the inner pressure ring 7 and the new insulator counter-rotate 180 degrees and stop, reinsert the R pin, operate the traction bracket to release the insulator string, and the replacement is completed.

[0099] Due to this automatic rotation mechanism, before rotating the insulator, there is no need to manually install the clamping insulator, and the positions of the clamping plate 1 and the clamping plate 2 can be moved according to actual needs to realize the replacement of insulators at different positions, which is convenient to operate. As for the rotation drive of the insulator, the gear ring 12 is matched with the single-sided vertical rack 12, and the electric telescopic rod 2 10 drives the rack 12 to rise and fall to drive the gear ring 12 to rotate, so as to realize the rotation of the insulator, which can meet the needs of rotation replacement when the design width of the traction bracket is relatively small;

[0100] Secondly, when the electronic tension meter 5 and the control mechanism are used together to control the operation of the clamping drive mechanism, the insulator can be clamped without damaging the insulator to be replaced.

[0101] Control mechanism and heating mechanism: After the control mechanism receives the temperature control command issued by the industrial computer 41, it adjusts the heating temperature value of the electronic thermostat 26 to adjust the heating temperature of the heating rod 27. The heating rod 27 can transfer the heat generated by it to the heat-conducting ring 14. The temperature of the heat-conducting ring 14 is sensed by the temperature sensor 33. When the standard temperature is reached, the heating rod 27 is controlled to heat the insulator at a constant temperature, thereby achieving de-icing in the notch of the insulator.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An automatic rotating mechanism for replacing insulators, characterized in that: It comprises a clamping plate 1 (1) and a clamping plate 2 (2), wherein a clamping drive mechanism is arranged on the top of the clamping plate 1 (1) and the clamping plate 2 (2), and the clamping drive mechanism is used to drive the clamping plate 1 (1) and the clamping plate 2 (2) to move towards and in opposite directions; An inner pressure ring (7) is rotatably arranged inside the clamping plate 1 (1) and the clamping plate 2 (2), and the inner pressure ring (7) is a semicircular ring structure, and a rotation drive mechanism is arranged on one side of the clamping plate 2 (2), and the rotation drive mechanism is used to drive the insulator to rotate after the clamping drive mechanism drives the inner pressure ring (7) to press the insulator tightly; The clamping plate 1 (1) and the clamping plate 2 (2) are provided with a heating mechanism, and the heating mechanism is used to heat the insulator through the inner pressure ring (7); A supporting connecting plate (16) is slidably provided on the clamping plate (1), and a traction mechanism is provided on the supporting connecting plate (16), and the traction mechanism is used to drive the clamping plate (1) and the clamping plate (2) to move in the direction of the traction mechanism; A fixing plate (34) is provided on the top of the supporting connecting plate (16), and a lifting mechanism is provided on the fixing plate (34), wherein the lifting mechanism is used to be fixed on the traction bracket and drive the insulator to move up and down; The fixing plate (34) is also provided with a control mechanism, which is used to control the operation of the clamping drive mechanism, the rotation drive mechanism, the heating mechanism, the traction mechanism and the lifting mechanism; The clamping drive mechanism comprises a mounting plate 1 (3) arranged on one side of the top of the clamping plate 1 (1); an electric telescopic rod 1 (4) is installed on one side of the mounting plate 1 (3); the top rod of the electric telescopic rod 1 (4) is connected to the mounting plate 2 (6) via an electronic tension measuring meter (5); the bottom of the mounting plate 2 (6) is connected to the top of the clamping plate 2 (2); a telescopic rod (301) is arranged between the mounting plate 1 (3) and the mounting plate 2 (6); The rotary drive mechanism comprises a gear ring (9) arranged on the outside of the inner pressure ring (7); a groove is provided on one side of the second clamping plate (2) and an electric telescopic rod (10) is provided in the groove; the top rod of the electric telescopic rod (10) is connected to a top connecting plate (11); a rack (12) is connected to the bottom side of the top connecting plate (11); an opening is provided in the second clamping plate (2) and the gear ring (9) is located in the opening; sliding bars (121) are provided on both sides of the opening; grooves are provided on both sides of the rack (12) and the sliding bars are inserted into the grooves; the rack (12) meshes with the gear ring (9).

2. The automatic rotating mechanism for replacing insulators according to claim 1, characterized in that: The heating mechanism comprises a heat-insulating ring (13) fixedly arranged in the first clamping plate (1) and the second clamping plate (2), a heat-conducting ring (14) being arranged in the heat-insulating ring (13), the inner pressure ring (7) being slidably arranged in the heat-conducting ring (14), and an anti-slip convex net (8) being arranged in the inner pressure ring (7); A support box (25) is provided on the sides of the first clamping plate (1) and the second clamping plate (2), an electronic thermostat (26) is provided in the support box (25), a heating rod (27) is provided on the support box (25), and an end of the heating rod (27) is fixedly provided on the heat-conducting ring (14); The heat-conducting ring (14) is provided with a temperature sensor (33), and a transmission line of the temperature sensor (33) passes through the first clamping plate (1) and the second clamping plate (2) to the inside of the support box (25).

3. The automatic rotating mechanism for replacing insulators according to claim 2, characterized in that: The rotary drive mechanism further comprises a support ring (15) arranged outside the inner pressure ring (7); an inner wall of the heat conducting ring (14) is provided with an annular groove, and the support ring (15) is slidably arranged in the annular groove; The support ring (15) is provided with a support groove, a second spring (31) is provided in the support groove, a second pressing head (32) is slidably provided in the support groove, and the second spring (31) is elastically supported on the second pressing head (32), a second head groove is provided on the middle side of the ring groove, and the head of the second pressing head (32) is pressed in the second head groove by the elastic support of the second spring (31).

4. The automatic rotating mechanism for replacing insulators according to claim 3, characterized in that: A limit plate (21) is provided at one end of the supporting connecting plate (16), a mounting tube (17) is provided at one side of the clamping plate (1), a pressure plate (18) is slidably provided in the mounting tube (17), a spring (19) is provided in the mounting tube (17), and the spring (19) is elastically supported on one end of the mounting tube (17) and the pressure plate (18); A pressing head (20) is provided at one end of the pressing plate (18), and head grooves (20) are evenly and transversely provided on the supporting connecting plate (16), and the head of the pressing head (20) is inserted into the head groove.

5. The automatic rotating mechanism for replacing insulators according to claim 4, characterized in that: The traction mechanism comprises a motor (22) arranged on a supporting connecting plate (16), a rotor shaft of the motor (22) passing through the supporting connecting plate (16) and connected to a winding disk (23), a traction rope (24) being wound on the winding disk (23), and one end of the traction rope (24) being connected to a clamping plate (1).

6. The automatic rotating mechanism for replacing insulators according to claim 5, characterized in that: The lifting mechanism comprises an electric telescopic rod three (35) arranged on a fixed plate (34), the top rod of the electric telescopic rod three (35) is connected to a support bearing seat (36), the inner ring of the bearing of the support bearing seat (36) is connected to a fixed shaft and the bottom of the fixed shaft is connected to a rotating disk (37), the bottom center position of the rotating disk (37) is connected to a tightening stud (38), and a gasket (39) is sleeved on the tightening stud (38); The lifting mechanism further comprises a support screw sleeve (101) arranged on the top of the clamping seat of the traction bracket, and the tightening screw (38) is locked in the support screw sleeve (101).

7. An automatic rotating mechanism for replacing insulators according to any one of claims 1 to 6, characterized in that: The control mechanism comprises a protection box (40) and a fixing frame (42) arranged on a fixing plate (34); an industrial computer (41) is arranged on the top of the protection box (40); and a development board (401) is arranged inside the protection box (40); A driver group (43) is arranged on the fixing frame (42); The development board (401) is provided with a control module, which is used to combine the tension value uploaded by the electronic tension meter (5) with the temperature sensor (33) and the temperature value, and cooperate with the industrial control computer (41) to control the operation of the clamping drive mechanism, the rotation drive mechanism, the heating mechanism, the traction mechanism and the lifting mechanism.

8. The automatic rotating mechanism for replacing insulators according to claim 7, characterized in that: The control module comprises a temperature value receiving module, a tension value receiving module and a control signal centralized processing module, wherein the temperature value receiving module is used to receive a temperature signal uploaded by a temperature sensor (33) and convert the temperature signal into a temperature value, the tension value receiving module is used to receive in real time the tension value obtained by an electronic tension measuring meter (5), and the control signal centralized processing module is used to receive a control signal input by an industrial control computer (41) and process and output the control signal according to type classification; The control signal centralized processing module is connected to the steering speed control module 1, the steering speed control module 2, the steering speed control module 3, the steering speed control module 4 and the temperature control module, the steering speed control module 1 is used to control the operation of the clamping drive mechanism, the steering speed control module 2 is used to control the operation of the rotary drive mechanism, the steering speed control module 3 is used to control the operation of the traction mechanism, the steering speed control module 4 is used to control the operation of the lifting mechanism, and the temperature control module is used to control the operation of the heating mechanism; The temperature value receiving module and the tension value receiving module are connected to a comparison and analysis module for comparing the real-time received temperature value and tension value with the standard temperature value and standard tension value stored therein in real time; the comparison and analysis module is connected to a steering speed control module 1 and a temperature control module for controlling the steering speed control module 1 to issue a stop operation instruction and the temperature control module to issue a constant temperature heating instruction when the real-time received temperature value and tension value reach the standard temperature value and standard tension value stored therein.

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