Load switch operating device for high-voltage cabinet

Abstract

The invention discloses a load switch operation device for a high-voltage cabinet, and relates to the technical field of power equipment, the load switch operation device comprises a mobile carrier and an operation assembly, the operation assembly comprises a shell, and a turbine and a worm which are located in the shell; the two ends of the worm are rotationally connected with the shell correspondingly, and the worm can rotate around the axis of the worm. An operation sleeve is further arranged in the shell, and the turbine is fixedly and coaxially arranged on the operation sleeve in a sleeving mode. One end of the operation sleeve is provided with a hexagonal tenon, the hexagonal tenon is used for fixing an operation sleeve rod, and one end, far away from the hexagonal tenon, of the operation sleeve rod is used for being inserted into an operation hole of a load switch. By adopting the scheme, the remote operation of the high-voltage load switch can be realized when the remote operation device is applied to a power distribution room, a box transformer high-voltage inlet wire cabinet, a power distribution room load switch cabinet and a ring main unit in a power distribution network, so that an enough safe distance is kept between an operator and operated equipment, the operation load and difficulty are reduced, and the personal safety of the operator is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to a load switch operating device for a high-voltage cabinet. Background Art

[0002] A load switch is a switch with a simple arc extinguishing device that can open and close the rated load current. Load switches are widely used in distribution rooms and high-voltage incoming cabinets of power distribution networks. The number and types of load switches are large, and the equipment status is uneven. Once the insulation of the back-end equipment or load switch decreases, the switch cabinet is very likely to explode during operation, resulting in casualties, equipment damage, and power grid failure.

[0003] Load switches are divided into compressed air load switches, inflatable load switches, etc. The operation method is mostly on-site operation with handles, and the operator operates close to the equipment. Once a short circuit occurs during the opening and closing process of the load switch, the operator's life safety will be endangered. In addition, the State Grid prohibits operators from energizing and delivering loads on site. Since the equipment itself does not have a remote control closing function, it can only be operated on-site, which brings huge safety risks to power practitioners.

[0004] If power grid workers want to avoid the above-mentioned operational risks, they will need to expand the scope of the power outage and cut off the power to the upper-level circuit breaker, which will greatly increase the scope of the power outage, affect economic efficiency, reduce power supply reliability, and reduce users' quality service experience. Summary of the invention

[0005] The present invention aims to solve the deficiencies of the prior art and to provide a load switch operating device for a high-voltage cabinet. By adopting this scheme, remote operation of the high-voltage load switch can be achieved in the distribution room and the high-voltage incoming line cabinet of the box-type transformer in the power distribution network, so that the operator can maintain a sufficient safe distance from the operated equipment, while reducing the operating load and difficulty, thereby ensuring the life safety of the operator.

[0006] The present invention is achieved through the following technical solutions:

[0007] A load switch operating device for a high-voltage cabinet, comprising:

[0008] Mobile carrier;

[0009] An operating assembly, the operating assembly comprising a housing, and a turbine and a worm located in the housing, the turbine and the worm being vertically meshed with each other; the two ends of the worm are respectively rotatably connected to the housing and can rotate around its own axis; a reduction motor for driving the worm to rotate is also provided on the side wall of the housing;

[0010] The housing also has an operating sleeve, and the turbine is fixed and coaxially sleeved on the operating sleeve; the two ends of the operating sleeve are rotatably connected to the two sides of the housing respectively, and can rotate around its own axis;

[0011] One end of the operating sleeve is provided with a hexagonal tenon, the end of the hexagonal tenon extends out of the shell and is located outside the shell, the hexagonal tenon is used to fix the operating sleeve rod, and the end of the operating sleeve rod away from the hexagonal tenon is used to be inserted into the operating hole of the load switch.

[0012] Compared with the prior art, load switches are divided into compressed air load switches, inflatable load switches, etc., and the operation mode is mostly on-site operation handle operation. The operator operates close to the equipment. Once a short circuit fault occurs during the opening and closing process of the load switch, the life safety of the operator will be endangered. In addition, the State Grid prohibits operators from delivering power on-site. Since the equipment itself does not have a remote control closing function, it can only be operated on-site, which brings huge safety risks to power practitioners. The present invention provides a load switch operating device for a high-voltage cabinet. By adopting this solution, remote operation of the high-voltage load switch can be realized, allowing the operator to maintain a sufficient safety distance from the operated equipment, while reducing the operating load and difficulty, thereby ensuring the life safety of the operator. The specific technical scheme is mainly used in the distribution room, box-type transformer high-voltage incoming line cabinet, or distribution room load switch cabinet and ring network cabinet in the distribution network. This scheme takes the box-type transformer high-voltage incoming line cabinet as an example, including an operating component and a mobile carrier carrying the operating component. When it is necessary to close the switch, the operating component is moved to a place close to the box-type transformer high-voltage incoming line cabinet by the mobile carrier. Subsequently, the operating sleeve rod is inserted into the square groove of the hexagonal tenon at the end of the operating sleeve and fixedly connected. The connection is a detachable connection method, such as the connection method between a tool and a tool holder; then the housing is gradually moved close to the high-voltage incoming line cabinet, so that the other end of the operating sleeve rod is inserted into the operating hole of the load switch; at this time, the reduction motor can be remotely operated to start, and the reduction motor drives the worm to rotate, and the two ends of the worm are respectively provided with There are bearings to achieve free rotation; the rotation of the worm drives the turbine to rotate. Since the operating hole of the load switch only needs to be rotated over a hundred degrees to achieve closing, the torque can be further reduced through the transmission method of the turbine and worm. For example, the torque of the original load switch operating equipment is 200N.m. After passing through this device, the operating torque can be reduced to 20N.m, greatly reducing the difficulty of operation; and through the orthogonal vertical setting, while ensuring sufficient rotational torque, the size of the shell can be as small as possible; since the turbine sleeve is arranged on the operating sleeve, it can drive the operating sleeve to rotate synchronously, and the operating sleeve further drives the hexagonal tenon and the operating sleeve rod to rotate, thereby rotating the operating hole of the load switch, so that the load switch changes from the open state to the closed state.

[0013] As a specific implementation method of a reduction motor driving a worm to rotate, one end of the worm extends out of the housing, and a driven gear is fixed and coaxially sleeved on the end extending out of the housing, and the driving gear of the reduction motor is meshed with the driven gear.

[0014] In order to facilitate remote observation of whether it is rotated to the closing position and to facilitate remote emergency operation, the other end of the operating sleeve also has a hexagonal tenon, the end of the hexagonal tenon at the other end extends out of the side wall of the shell, and the outer radial direction of the hexagonal tenon at the other end is provided with a pointer, and the outer wall of the shell is provided with a scale coaxially arranged with the hexagonal tenon at the other end, and the scale is adapted to the pointer. In this scheme, the other end of the sleeve also has a hexagonal tenon, and the hexagonal tenon extends out of the shell to leave a position for installing the pointer, so when the operating sleeve rotates, it can synchronously drive the pointer to rotate, so as to observe the rotation angle through the pointer, and when it rotates to the corresponding angle, it means that the load switch is in the closing state. In addition, the extended hexagonal tenon can facilitate the operator to quickly locate, when the reduction motor fails, or the rotation angle does not reach the corresponding angle, at this time, a longer rod body can be used to insert one end of the rod body into the hexagonal tenon, and the other end can be controlled by manual operation or other equipment operation to rotate.

[0015] In order to facilitate quick alignment of the operating hole of the load switch, reduce the labor of the operator, realize automated work, and avoid accidents during the insertion process, the mobile carrier includes a column, a base and a bearing plate, the base is fixed to the lower end of the column, and the bearing plate is fixed to the upper end of the column; the bearing plate is provided with a three-axis displacement component, the operating component is fixed on the three-axis displacement component, and the three-axis displacement component is used to drive the operating component to perform three-axis movement. In this solution, the base is supported on the ground, and rollers can be installed on the base to facilitate rapid movement; the bearing plate is used to carry the operating component, and the three-axis displacement component is used to drive the operating component to move in three-axis directions, that is, through the movement in the lateral and vertical directions, the operating sleeve rod is aligned with the operating hole of the load switch, and the operating sleeve rod is driven to be inserted into the operating hole of the load switch through the longitudinal movement.

[0016] In order to facilitate the initial positioning of the operating sleeve position and reduce the displacement of the three-axis displacement component, the length of the column is adjustable, and the ends of the bearing plate and the operating sleeve rod in the same direction are provided with positioning plates, and the positioning plates are arranged horizontally. In this scheme, since the high-voltage incoming line cabinet of the box-type transformer is provided with a plurality of adjacent cabinet doors, and the load switch is arranged on one of the cabinet doors, when the operating component is initially moved to the vicinity of the high-voltage incoming line cabinet of the box-type transformer by the mobile carrier, since there is a gap between the adjacent cabinet doors, the height of the column is initially adjusted so that the positioning plate is partially inserted into the gap under the cabinet door with the load switch to achieve initial positioning. In this way, the height distance of the load switch is basically fixed, so that in the process of repeated opening and closing of the gate, rapid adjustment can be achieved with a fixed vertical displacement distance.

[0017] As a specific implementation of a three-axis displacement assembly, the two sides of the operating assembly are slidably connected through a U-shaped second slider, so that the sliding process is more stable. The three-axis displacement assembly includes a vertical slide rail, a transverse slide rail and a longitudinal slide rail. Both sides of the carrier plate are provided with vertical slide rails, and both ends of the transverse slide rail are provided with a first slide rail slidably connected to the vertical slide rail; the transverse slide rail is provided with a second slide rail slidably connected, and the longitudinal slide rail is arranged on the second slide rail;

[0018] The second slider is U-shaped, and has longitudinal slide rails on both sides of the second slider groove. The operating component is located in the groove of the second slider, and the two sides of the shell of the operating component are respectively slidably connected to the two longitudinal slide rails; the operating sleeve rod on the operating component is set toward the opening direction of the second slider.

[0019] As a specific driving method for driving the three-axis displacement assembly to move in three axes, a guide rod and a screw rod are arranged beside the vertical slide rail, and the guide rod and the screw rod are arranged in the same direction as the vertical slide rail, and the guide rod is slidably connected to the first slider, and the screw rod is threadedly connected to the first slider; the bearing plate is also provided with a rotating motor, and the rotating motor is used to drive the screw rod to rotate;

[0020] The transverse slide rail is provided with a rack along its length direction, and the rack is located in the middle of the transverse slide rail;

[0021] One end of the bottom of the second slider is slidably sleeved on the transverse slide rail and is slidably connected to the parts of the second slider located on both sides of the rack; a driving motor is provided on one end of the bottom of the second slider, and a gear on an output end of the driving motor is meshed with the rack;

[0022] The second slider is also provided with a telescopic cylinder on the outside of one end of the bottom, and the telescopic cylinder is used to drive the operating component to slide on the longitudinal slide rail. In this scheme, in order to facilitate stable and high-precision displacement, a rotating motor, a screw rod and a guide rod are respectively provided at the vertical slide rail, and the first slider is driven to move with high precision in the vertical slide rail through the guidance of the guide rod and the rotation of the screw rod; a rack is provided on the transverse slide rail, and a matching gear is provided on the second slider, so that the drive motor drives the gear to rotate, thereby displacing in the length direction of the rack; at the longitudinal slide rail, they are respectively arranged on both sides of the groove of the second slider, so that the stable sliding of the operating component is achieved under the drive of the telescopic cylinder.

[0023] In the prior art, when the operating sleeve is inserted into the operating hole of the load switch, there is an outward spring thrust in the operating hole. Therefore, in order to overcome the spring thrust and avoid the spring thrust pushing outward, causing the entire load switch operating device to move outward or even tilt, it is configured as follows: the tops of both ends of the second slider at the opening are provided with a movable adsorption assembly, the movable adsorption assembly comprises a horizontal column, one end of the horizontal column is connected to the open end of the second slider, the other end of the horizontal column is movably connected with a first universal ball, and the first universal ball can rotate freely around the center of the ball; the horizontal column is also provided with an adsorption unit for adsorbing the high-voltage incoming cabinet of the adsorption box transformer. In this solution, a mobile adsorption component is provided so that the first universal ball can roll on the cabinet door. After moving into position, the first universal ball is adsorbed on the cabinet door through the adsorption unit, thereby overcoming the corresponding spring thrust; wherein, the first universal ball can realize longitudinal positioning. When the operating component is initially moved to a position close to the high-voltage incoming cabinet of the box-type transformer through the mobile carrier, the first universal ball is pressed against the cabinet door to realize preliminary positioning. In this way, the longitudinal distance of the load switch is basically fixed, so that in the process of repeated opening and closing of the gate, rapid adjustment can be realized with a fixed longitudinal displacement distance.

[0024] When the adsorption unit is applied, adsorption units are usually set on both sides or all around to balance the thrust. If conventional magnets are used for adsorption, when the operating component needs to be removed, a large force is often required to remove the magnet, which is not conducive to the stable operation of the entire load switch operating device. The cabinet door is made of metal and is in the shape of a thin plate. The process of removing the magnet may cause partial deformation of the cabinet door. Therefore, in order to reduce the difficulty of removal while realizing the adsorption function, it is set as follows: the adsorption unit includes a fixed sleeve that is coaxially and slidably sleeved on the horizontal column, and a plurality of movable rods circumferentially arranged on the horizontal column. The horizontal column is evenly distributed with a plurality of grooves circumferentially, and the grooves are arranged along the axial direction of the horizontal column; a second universal ball is movably connected to the bottom of the groove, and the second universal ball can rotate freely around the center of the ball; one end of the movable rod is connected to the second universal ball;

[0025] The fixing sleeve is evenly distributed in the circumferential direction with a plurality of long holes adapted to the grooves, and the long holes are arranged along the axial direction of the fixing sleeve; the other end of the movable rod extends out of the long hole, and the other end of the movable rod is connected to a suction cup, and an angle is formed between the axis of the suction cup and the axis of the movable rod, and when the other end of the movable rod swings in a direction away from the second slider, it is used to drive the suction cup to be vertical and adsorbed on the adsorption box to the high-voltage incoming line cabinet;

[0026] The fixed sleeve is fixed to the open end of the second slider, and a hydraulic rod is provided inside the open end of the second slider, and the hydraulic rod is used to drive the movable rod to move along its own axis. In this scheme, the fixed sleeve is fixed to the open end of the second slider, and a hydraulic rod is provided inside the open end of the second slider, the hydraulic rod is connected to the end of the horizontal column, the horizontal column and the fixed sleeve are coaxially slidably connected, and the first universal ball at the end of the horizontal column is initially displaced outside the fixed sleeve, so that the horizontal column can be driven to produce relative displacement relative to the fixed sleeve by the hydraulic rod; the horizontal column is provided with a movable rod, and the movable rod is initially in an outwardly inclined state, that is, the other end of the movable rod is inclined toward the direction of the operating component to prevent the suction cup from affecting the sliding of the first universal ball;

[0027] When the first universal ball moves into position, the horizontal column is retracted by the hydraulic rod. At this time, the outer end of the long hole on the fixed sleeve squeezes the movable rod, thereby pushing the movable rod to rotate. When the movable rod is pushed to rotate a certain angle and reaches a state of tilting inward, that is, the other end of the movable rod tilts toward the cabinet door, the suction cup just moves to a state perpendicular to the cabinet door and is adsorbed on the cabinet door to overcome the thrust. Among them, the suction cup is set to a plurality of numbers to increase the adsorption force; and the width of the long hole can be set to match the diameter of the movable rod. The wider width in the figure is for the convenience of observing the internal structure.

[0028] When the operating component needs to be removed, the horizontal column is extended through the hydraulic rod, and the movable rod is squeezed through the inner end of the long hole, thereby pushing the movable rod to rotate outward. During the rotation process, since the movable rod is in rotational motion, it will have a tendency to tilt based on the suction cup. In this way, when the suction cup is driven to rotate, the outermost end of the suction cup will leave the cabinet door first, so that the suction cup will quickly leave the adsorption state. Compared with directly removing the suction cup along its axial direction, this method uses less torque and causes less damage to the cabinet door.

[0029] In order to reduce the torque applied to remove the suction cup and avoid the movable rod from breaking due to excessive force, the side wall of the fixed sleeve is also provided with a compression spring, one end of which is connected to the side wall of the fixed sleeve, and the other end of which is connected to the other end of the movable rod; when the suction cup is adsorbed on the adsorption box to the high-voltage incoming line cabinet, the compression spring is used to apply a pulling force to the other end of the movable rod. In this solution, the compression spring is connected to the other end of the movable rod, so that when the suction cup needs to be removed, the pulling force at the other end of the movable rod and the pulling force of the compression spring are combined to quickly detach the suction cup; the compression spring is connected to the other end of the movable rod to maximize the pulling force.

[0030] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0031] 1. The present invention provides a load switch operating device for a high-voltage cabinet. By adopting this scheme, in a distribution room, a box-type transformer high-voltage incoming line cabinet, or a distribution room load switch cabinet, or a ring network cabinet in a power distribution network, remote operation of a high-voltage load switch can be realized, so that the operator can maintain a sufficient safe distance from the operated equipment, while reducing the operating load and difficulty, thereby ensuring the life safety of the operator.

[0032] 2. The present invention provides a load switch operating device for a high-voltage cabinet. According to this solution, a bearing plate is used to carry an operating component, and a three-axis displacement component is used to drive the operating component to move in three-axis directions, that is, the operating sleeve rod is aligned with the operating hole of the load switch through movement in the lateral and vertical directions, and the operating sleeve rod is driven to be inserted into the operating hole of the load switch through longitudinal movement, so as to facilitate rapid alignment with the operating hole of the load switch, reduce the labor of the operator, realize automated work, and avoid accidents during the insertion process.

[0033] 3. The present invention provides a load switch operating device for a high-voltage cabinet. According to the present solution, a movable adsorption component is set to roll on the cabinet door through a first universal ball. After moving into position, the device is adsorbed on the cabinet door through an adsorption unit, thereby overcoming the corresponding spring thrust. The first universal ball can realize longitudinal positioning. When the operating component is initially moved to a position close to the high-voltage incoming cabinet of the box-type transformer through a movable carrier, the first universal ball is pressed against the cabinet door to realize preliminary positioning. In this way, the longitudinal distance of the load switch is basically fixed, so that rapid adjustment can be realized with a fixed longitudinal displacement distance during repeated opening and closing of the switch.

[0034] 4. The present invention provides a load switch operating device for a high-voltage cabinet. By adopting this solution, a number of suction cups are set to replace the existing conventional magnets to overcome the problem that a large force is often required to remove the magnets when applying the magnets, which is not conducive to the stable operation of the entire load switch operating device. The cabinet door is made of metal and is in the shape of a thin plate. The process of removing the magnets may cause local deformation of the cabinet door. This solution reduces the difficulty of removal while realizing the adsorption function. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0036] Figure 1 A schematic diagram of the structure of the operating components provided by the present invention;

[0037] Figure 2 An internal schematic diagram of an operating component provided by the present invention;

[0038] Figure 3 A schematic structural diagram of another embodiment of the operating component provided by the present invention;

[0039] Figure 4 A schematic diagram of the structure of the load switch operating device provided by the present invention;

[0040] Figure 5 A top view of the load switch operating device provided by the present invention;

[0041] Figure 6 This is a schematic structural diagram of the mobile adsorption assembly provided by the present invention.

[0042] Marks and corresponding parts names in the attached drawings:

[0043] 1-operating assembly, 101-housing, 102-turbine, 103-worm, 104-driven gear, 105-operating sleeve, 106-hexagonal tenon, 107-operating sleeve rod, 108-driving gear, 109-pointer, 110-scale meter, 2-column, 3-base, 4-bearing plate, 401-positioning sheet, 5-vertical slide rail, 501-first slider, 6-transverse slide rail, 601-second slider, 602-rack, 603-drive motor, 604-telescopic cylinder, 7-longitudinal slide rail, 8-rotating motor, 9-movable adsorption assembly, 901-horizontal column, 902-first universal ball, 903-fixed sleeve, 904-movable rod, 905-groove, 906-second universal ball, 907-long hole, 908-suction cup, 909-compression spring. DETAILED DESCRIPTION

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0045] Example

[0046] This embodiment provides a load switch operating device for a high-voltage cabinet, such as Figure 1-Figure 6 As shown, including:

[0047] Mobile carrier;

[0048] The operating assembly 1 comprises a housing 101, and a turbine 102 and a worm 103 located in the housing 101, wherein the turbine 102 and the worm 103 are vertically meshed with each other; both ends of the worm 103 are rotatably connected to the housing 101 respectively and can rotate around its own axis; a reduction motor for driving the worm 103 to rotate is also provided on the side wall of the housing 101;

[0049] The housing 101 also has an operating sleeve 105, and the turbine 102 is fixed and coaxially sleeved on the operating sleeve 105; the two ends of the operating sleeve 105 are rotatably connected to the two sides of the housing 101 respectively, and can rotate around its own axis;

[0050] One end of the operating sleeve 105 is provided with a hexagonal tenon 106, the end of the hexagonal tenon 106 extends out of the housing 101 and is located outside the housing 101, the hexagonal tenon 106 is used to fix the operating sleeve rod 107, and the end of the operating sleeve rod 107 away from the hexagonal tenon 106 is used to be inserted into the operating hole of the load switch.

[0051] Compared with the prior art, load switches are divided into compressed air load switches, inflatable load switches, etc., and the operation mode is mostly on-site operation handle operation. The operator operates close to the equipment. Once a short circuit fault occurs during the opening and closing process of the load switch, the life safety of the operator will be endangered. In addition, the State Grid prohibits operators from delivering power on-site. Since the equipment itself does not have a remote control closing function, it can only be operated on-site, which brings huge safety risks to power practitioners. The present invention provides a load switch operating device for a high-voltage cabinet. By adopting this solution, remote operation of the high-voltage load switch can be realized, allowing the operator to maintain a sufficient safety distance from the operated equipment, while reducing the operating load and difficulty, thereby ensuring the life safety of the operator. The specific technical scheme is mainly used in the distribution room, box-type transformer high-voltage incoming line cabinet, or distribution room load switch cabinet and ring network cabinet in the power distribution network. This scheme takes the box-type transformer high-voltage incoming line cabinet as an example, including an operating component 1 and a mobile carrier carrying the operating component 1. When it is necessary to close the switch, the operating component 1 is moved to a place close to the box-type transformer high-voltage incoming line cabinet by the mobile carrier. Then, the operating sleeve rod 107 is inserted into the square groove of the hexagonal tenon 106 at the end of the operating sleeve 105 and fixedly connected. The connection is a detachable connection method, such as the connection method between a tool and a tool holder; then the housing 101 is gradually moved close to the high-voltage incoming line cabinet, so that the other end of the operating sleeve rod 107 is inserted into the operating hole of the load switch; at this time, the reduction motor can be remotely operated to start, and the reduction motor drives the worm 103 to rotate, and bearings are respectively provided at both ends of the worm 103. To achieve free rotation; the rotation of the worm 103 drives the turbine 102 to rotate. Since the operating hole of the load switch only needs to be rotated more than one hundred degrees to achieve closing, the transmission method of the turbine 102 and the worm 103 can further reduce the torque. For example, the torque of the original load switch operating device is 200N.m. After passing through the device, the operating torque can be reduced to 20N.m, which greatly reduces the difficulty of operation; and through the orthogonal vertical setting, while ensuring sufficient rotational torque, the size of the shell 101 can be as small as possible; since the turbine 102 is sleeved on the operating sleeve 105, it can drive the operating sleeve 105 to rotate synchronously, and the operating sleeve 105 further drives the hexagonal tenon 106 and the operating sleeve rod 107 to rotate, thereby rotating the operating hole of the load switch, so that the load switch is changed from an open state to a closed state.

[0052] As a specific implementation of a reduction motor driving the worm 103 to rotate, one end of the worm 103 extends out of the housing 101, and a driven gear 104 is fixed and coaxially sleeved on the end extending out of the housing 101, and the driving gear 108 of the reduction motor is meshed with the driven gear 104.

[0053] In order to facilitate remote observation of whether it is rotated to the closing position and to facilitate remote emergency operation, the other end of the operating sleeve 105 is also provided with a hexagonal tenon 106, and the end of the hexagonal tenon 106 at the other end extends out of the side wall of the housing 101, and the outer radial direction of the hexagonal tenon 106 at the other end is provided with a pointer 109, and the outer wall of the housing 101 is provided with a scale 110 coaxially arranged with the hexagonal tenon 106 at the other end, and the scale 110 is adapted to the pointer 109. In this solution, the other end of the sleeve is also provided with a hexagonal tenon 106, and the hexagonal tenon 106 extends out of the housing 101 to leave a position for installing the pointer 109, so when the operating sleeve 105 rotates, it can synchronously drive the pointer 109 to rotate, so as to observe the rotation angle through the pointer 109, and when it rotates to the corresponding angle, it means that the load switch is in the closing state. In addition, the extended hexagonal tenon 106 can facilitate the operator to quickly position. When the reduction motor fails or the rotation angle does not reach the corresponding angle, a longer rod can be used to insert one end of the rod into the hexagonal tenon 106, and the other end can be controlled by manual operation or other equipment to control its rotation.

[0054] In order to facilitate quick alignment of the operating hole of the load switch, reduce the labor of the operator, realize automated work, and avoid accidents during the insertion process, the mobile carrier includes a column 2, a base 3 and a bearing plate 4, the base 3 is fixed to the lower end of the column 2, and the bearing plate 4 is fixed to the upper end of the column 2; the bearing plate 4 is provided with a three-axis displacement component, the operating component 1 is fixed on the three-axis displacement component, and the three-axis displacement component is used to drive the operating component 1 to perform three-axis movement. In this solution, the base 3 is supported on the ground, and rollers can be installed on the base 3 to facilitate rapid movement; the bearing plate 4 is used to carry the operating component 1, and the three-axis displacement component is used to drive the operating component 1 to move in the three-axis direction, that is, through the movement in the lateral direction and the vertical direction, the operating sleeve rod 107 is aligned with the operating hole of the load switch, and the operating sleeve rod 107 is driven to be inserted into the operating hole of the load switch through the longitudinal movement.

[0055] In order to facilitate the initial positioning of the operating sleeve 105 and reduce the displacement of the three-axis displacement component, the length of the column 2 is adjustable, and the ends of the bearing plate 4 and the operating sleeve rod 107 in the same direction are provided with a positioning plate 401, and the positioning plate 401 is arranged horizontally. In this scheme, since the high-voltage incoming line cabinet of the box-type transformer is provided with a plurality of adjacent cabinet doors, and the load switch is arranged on one of the cabinet doors, when the operating component 1 is initially moved to the position close to the high-voltage incoming line cabinet of the box-type transformer by the mobile carrier, since there is a gap between the adjacent cabinet doors, the height of the column 2 is initially adjusted so that the positioning plate 401 is partially inserted into the gap under the cabinet door with the load switch to achieve initial positioning. In this way, the height distance of the load switch is basically fixed, so that in the process of repeated opening and closing of the gate, a fixed vertical displacement distance is used to achieve rapid adjustment.

[0056] As a specific implementation of a three-axis displacement component, the two sides of the operating component 1 are slidably connected through a U-shaped second slider 601, so that the sliding process is more stable. The three-axis displacement component includes a vertical slide rail 5, a transverse slide rail 6 and a longitudinal slide rail 7. Both sides of the carrier plate 4 are provided with vertical slide rails 5, and both ends of the transverse slide rail 6 are provided with a first slider 501 slidably connected to the vertical slide rail 5; the transverse slide rail 6 is provided with a second slider 601 slidably connected, and the longitudinal slide rail 7 is arranged on the second slider 601;

[0057] The second slider 601 is U-shaped, and has longitudinal slide rails 7 on both sides of the groove of the second slider 601. The operating component 1 is located in the groove of the second slider 601, and both sides of the shell 101 of the operating component 1 are slidably connected to the two longitudinal slide rails 7 respectively; the operating sleeve rod 107 on the operating component 1 is set toward the opening direction of the second slider 601.

[0058] As a specific driving method for driving the three-axis displacement assembly to move in three axes, a guide rod and a screw rod are arranged beside the vertical slide rail 5, and the guide rod and the screw rod are arranged in the same direction as the vertical slide rail 5, and the guide rod is slidably connected to the first slider 501, and the screw rod is threadedly connected to the first slider 501; the bearing plate 4 is also provided with a rotating motor 8, and the rotating motor 8 is used to drive the screw rod to rotate;

[0059] The transverse slide rail 6 has a rack 602 along its length direction, and the rack 602 is located in the middle of the transverse slide rail 6;

[0060] One end of the bottom of the second slider 601 is slidably mounted on the transverse slide rail 6, and is slidably connected to the parts of the second slider 601 located on both sides of the rack 602; a driving motor 603 is provided on one end of the bottom of the second slider 601, and a gear on the output end of the driving motor 603 is meshed with the rack 602;

[0061] The second slider 601 is also provided with a telescopic cylinder 604 on the outside of one end of the bottom, and the telescopic cylinder 604 is used to drive the operating component 1 to slide on the longitudinal slide rail 7. In this solution, in order to facilitate stable and high-precision displacement, a rotary motor 8, a screw rod and a guide rod are respectively provided at the vertical slide rail 5, and the first slider 501 is driven to move with high precision in the vertical slide rail 5 through the guidance of the guide rod and the rotation of the screw rod; a rack 602 is provided on the transverse slide rail 6, and a matching gear is provided on the second slider 601, so that the drive motor 603 drives the gear to rotate, thereby displacing in the length direction of the rack 602; at the longitudinal slide rail 7, they are respectively arranged on both sides of the groove of the second slider 601, so that the stable sliding of the operating component 1 is achieved under the drive of the telescopic cylinder 604.

[0062] In the prior art, when the operating sleeve 107 is inserted into the operating hole of the load switch, there is an outward spring thrust in the operating hole. Therefore, in order to overcome the spring thrust and avoid the spring thrust pushing outward, causing the entire load switch operating device to move outward or even tilt, it is configured as follows: the tops of both ends of the second slider 601 at the opening are provided with a movable adsorption assembly 9, the movable adsorption assembly 9 includes a horizontal column 901, one end of the horizontal column 901 is connected to the open end of the second slider 601, and the other end of the horizontal column 901 is movably connected to a first universal ball 902, and the first universal ball 902 can rotate freely around the center of the ball; the horizontal column 901 is also provided with an adsorption unit for adsorbing the high-voltage incoming cabinet of the adsorption box transformer. In this solution, a mobile adsorption component 9 is provided so that the first universal ball 902 can roll on the cabinet door. After being moved into position, the first universal ball 902 is adsorbed on the cabinet door through the adsorption unit, thereby overcoming the corresponding spring thrust; wherein, the first universal ball 902 can realize longitudinal positioning. When the operating component 1 is initially moved to a position close to the high-voltage incoming line cabinet of the box-type transformer through the mobile carrier, the first universal ball 902 is pressed against the cabinet door to realize preliminary positioning. In this way, the longitudinal distance of the load switch is basically fixed, so that in the process of repeated opening and closing of the gate, rapid adjustment can be realized with a fixed longitudinal displacement distance.

[0063] When the adsorption unit is applied, adsorption units are usually set on both sides or all around to balance the thrust. If conventional magnets are used for adsorption, when the operating component 1 needs to be removed, a large force is often required to remove the magnet, which is not conducive to the stable operation of the entire load switch operating device. The cabinet door is made of metal and is in the shape of a thin plate. The process of removing the magnet may cause local deformation of the cabinet door. Therefore, in order to reduce the difficulty of removal while realizing the adsorption function, it is set as follows: the adsorption unit includes a fixed sleeve 903 coaxially and slidably sleeved on the horizontal column 901, and a plurality of movable rods 904 circumferentially arranged on the horizontal column 901. The horizontal column 901 is evenly distributed with a plurality of grooves 905 circumferentially, and the grooves 905 are arranged axially along the horizontal column 901; a second universal ball 906 is movably connected to the bottom of the groove 905, and the second universal ball 906 can rotate freely around the center of the ball; one end of the movable rod 904 is connected to the second universal ball 906;

[0064] The fixing sleeve 903 is evenly distributed in the circumferential direction with a plurality of long holes 907 adapted to the groove 905, and the long holes 907 are arranged along the axial direction of the fixing sleeve 903; the other end of the movable rod 904 extends out of the long hole 907, and the other end of the movable rod 904 is connected to a suction cup 908, and the axis of the suction cup 908 and the axis of the movable rod 904 have an angle with each other, and when the other end of the movable rod 904 swings in a direction away from the second slider 601, it is used to drive the suction cup 908 to be vertical and adsorbed on the adsorption box transformer high-voltage incoming line cabinet;

[0065] The fixed sleeve 903 is fixed to the open end of the second slider 601, and a hydraulic rod is provided inside the open end of the second slider 601, and the hydraulic rod is used to drive the movable rod 904 to move along its own axis. In this solution, the fixed sleeve 903 is fixed to the open end of the second slider 601, and a hydraulic rod is provided inside the open end of the second slider 601, and the hydraulic rod is connected to the end of the horizontal column 901, and the horizontal column 901 and the fixed sleeve 903 are coaxially slidably connected, and the first universal ball 902 at the end of the horizontal column 901 is initially displaced outside the fixed sleeve 903, so that the horizontal column 901 can be driven by the hydraulic rod to produce relative displacement relative to the fixed sleeve 903; the movable rod 904 is provided on the horizontal column 901, and the movable rod 904 is initially in an outwardly inclined state, that is, the other end of the movable rod 904 is inclined toward the direction of the operating component 1, so as to prevent the suction cup 908 from affecting the sliding of the first universal ball 902;

[0066] When the first universal ball 902 moves into position, the horizontal column 901 is retracted by the hydraulic rod. At this time, the outer end of the long hole 907 on the fixed sleeve 903 squeezes the movable rod 904, thereby pushing the movable rod 904 to rotate. When the movable rod 904 is pushed to rotate a certain angle and reaches a state of tilting inward, that is, the other end of the movable rod 904 tilts toward the cabinet door, the suction cup 908 just moves to a state perpendicular to the cabinet door and is adsorbed on the cabinet door to overcome the thrust; wherein, the suction cup 908 is set to a plurality of numbers to increase the adsorption force; and the width of the long hole 907 can be set to match the diameter of the movable rod 904. The wider width in the figure is for the convenience of observing the internal structure;

[0067] When it is necessary to remove the operating component 1, the horizontal column 901 is extended through the hydraulic rod, and the movable rod 904 is squeezed through the inner end of the long hole 907, thereby pushing the movable rod 904 to rotate outward. During the rotation process, since the movable rod 904 is in a rotational motion, it will have a tendency to tilt based on the suction cup 908. In this way, when the suction cup 908 is driven to rotate, the outermost end of the suction cup 908 will leave the cabinet door first, so that the suction cup 908 will quickly leave the adsorption state. Compared with directly removing the suction cup 908 along its axial direction, this method uses less torque and causes less damage to the cabinet door.

[0068] In order to reduce the torque applied to remove the suction cup 908 and avoid the movable rod 904 from breaking due to excessive force, the side wall of the fixed sleeve 903 is also provided with a compression spring 909, one end of which is connected to the side wall of the fixed sleeve 903, and the other end of which is connected to the other end of the movable rod 904; when the suction cup 908 is adsorbed on the adsorption box to the high-voltage incoming line cabinet, the compression spring 909 is used to apply a pulling force to the other end of the movable rod 904. In this solution, the compression spring 909 is connected to the other end of the movable rod 904, so that when the suction cup 908 needs to be removed, the pulling force at the other end of the movable rod 904 and the pulling force of the compression spring 909 are combined to quickly detach the suction cup 908; the compression spring 909 is connected to the other end of the movable rod 904 to maximize the pulling force.

[0069] Specific working principle:

[0070] When the switch needs to be closed, the operating component 1 is moved to a position close to the high-voltage incoming line cabinet of the box-type transformer by means of a mobile carrier, and the height of the column 2 is preliminarily adjusted so that the positioning plate 401 is partially inserted into the gap under the cabinet door with the load switch to achieve preliminary positioning in the height direction; after the positioning plate 401 is inserted, the first universal ball 902 on the horizontal column 901 is pressed against the cabinet door to achieve preliminary positioning in the longitudinal direction; then the three-axis displacement component is driven to drive the operating component 1 to move in the height direction and the lateral direction so that the operating sleeve rod 107 is aligned with the operating hole of the load switch; after alignment, the horizontal column 901 is retracted by the hydraulic rod inside the second slider 601, and at this time, the outer end of the long hole 907 on the fixed sleeve 903 squeezes the movable rod 904, thereby pushing the movable rod 904 to rotate. When the movable rod 904 is pushed to rotate a certain angle and reaches a state of tilting inward, that is, the other end of the movable rod 904 tilts toward the cabinet door, the suction cup 908 just moves to a state perpendicular to the cabinet door and is adsorbed on the cabinet door to overcome the outward spring thrust in the operating hole. When the adsorption is completed, the three-axis displacement component is driven again to drive the operating component 1 to move in the longitudinal direction, so that the other end of the operating sleeve rod 107 is inserted into the operating hole of the load switch. Subsequently, the reduction motor in the operating component 1 is controlled to start, driving the turbine 102 and the worm 103 to rotate, so as to control the operating sleeve 105 to rotate in the operating hole of the load switch, so that the load switch is changed from the open state to the closed state.

[0071] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A load switch operating device for a high-voltage cabinet, characterized in that: include: Mobile carrier; An operating assembly (1), comprising a housing (101), and a turbine (102) and a worm (103) located in the housing (101), wherein the turbine (102) and the worm (103) are vertically meshed with each other; both ends of the worm (103) are rotatably connected to the housing (101) and can rotate around its own axis; and a reduction motor for driving the worm (103) to rotate is also provided on the side wall of the housing (101); The housing (101) is also provided with an operating sleeve (105), and the turbine (102) is fixed and coaxially sleeved on the operating sleeve (105); the two ends of the operating sleeve (105) are rotatably connected to the two sides of the housing (101) respectively, and can rotate around its own axis; One end of the operating sleeve (105) is provided with a hexagonal tenon (106), the end of the hexagonal tenon (106) protrudes from the housing (101) and is located outside the housing (101), the hexagonal tenon (106) is used to fix the operating sleeve rod (107), and the end of the operating sleeve rod (107) away from the hexagonal tenon (106) is used to be inserted into the operating hole of the load switch.

2. A load switch operating device for a high-voltage cabinet according to claim 1, characterized in that: One end of the worm (103) extends out of the housing (101), and a driven gear (104) is fixed and coaxially sleeved on the end extending out of the housing (101), and the driving gear (108) of the reduction motor is meshed with the driven gear (104).

3. A load switch operating device for a high-voltage cabinet according to claim 1, characterized in that: The other end of the operating sleeve (105) is also provided with a hexagonal tenon (106), the end of the hexagonal tenon (106) at the other end protrudes out of the side wall of the housing (101), the outer radial direction of the hexagonal tenon (106) at the other end is provided with a pointer (109), and the outer side wall of the housing (101) is provided with a scale (110) coaxially arranged with the hexagonal tenon (106) at the other end, and the scale (110) and the pointer (109) are adapted to each other.

4. A load switch operating device for a high-voltage cabinet according to claim 1, characterized in that: The mobile carrier comprises a column (2), a base (3) and a bearing plate (4), wherein the base (3) is fixed to the lower end of the column (2), and the bearing plate (4) is fixed to the upper end of the column (2); The bearing plate (4) is provided with a three-axis displacement component, the operating component (1) is fixed on the three-axis displacement component, and the three-axis displacement component is used to drive the operating component (1) to perform three-axis movement.

5. A load switch operating device for a high-voltage cabinet according to claim 4, characterized in that: The length of the upright column (2) is adjustable, and the ends of the bearing plate (4) and the operating sleeve rod (107) in the same direction are provided with positioning thin plates (401), and the positioning thin plates (401) are arranged horizontally.

6. A load switch operating device for a high-voltage cabinet according to claim 4, characterized in that: The three-axis displacement assembly comprises a vertical slide rail (5), a transverse slide rail (6) and a longitudinal slide rail (7); both sides of the bearing plate (4) are provided with vertical slide rails (5); both ends of the transverse slide rail (6) are provided with a first slider (501) slidably connected to the vertical slide rail (5); the transverse slide rail (6) is provided with a second slider (601) slidably connected thereto; and the longitudinal slide rail (7) is arranged on the second slider (601); The second slider (601) is U-shaped, and both sides of the groove of the second slider (601) are provided with longitudinal slide rails (7); the operating component (1) is located in the groove of the second slider (601), and both sides of the housing (101) of the operating component (1) are slidably connected to the two longitudinal slide rails (7) respectively; the operating sleeve rod (107) on the operating component (1) is arranged toward the opening direction of the second slider (601).

7. A load switch operating device for a high-voltage cabinet according to claim 6, characterized in that: A guide rod and a screw rod are arranged beside the vertical slide rail (5), and the guide rod and the screw rod are arranged in the same direction as the vertical slide rail (5), and the guide rod and the first slider (501) are slidably connected, and the screw rod and the first slider (501) are threadedly connected; the bearing plate (4) is also provided with a rotating motor (8), and the rotating motor (8) is used to drive the screw rod to rotate; The transverse slide rail (6) is provided with a rack (602) along its length direction, and the rack (602) is located in the middle of the transverse slide rail (6); One end of the bottom of the second slider (601) is slidably mounted on the transverse slide rail (6) and is slidably connected to the parts of the second slider (601) located on both sides of the rack (602); one end of the bottom of the second slider (601) is provided with a driving motor (603), and the gear on the output end of the driving motor (603) is meshed with the rack (602); The outside of one end of the bottom of the second sliding block (601) is also provided with a telescopic cylinder (604), and the telescopic cylinder (604) is used to drive the operating component (1) to slide on the longitudinal slide rail (7).

8. A load switch operating device for a high-voltage cabinet according to claim 6, characterized in that: The second slider (601) is provided with a movable adsorption assembly (9) at the top of both ends of the opening, and the movable adsorption assembly (9) comprises a horizontal column (901), one end of the horizontal column (901) is connected to the opening end of the second slider (601), and the other end of the horizontal column (901) is movably connected to a first universal ball (902), and the first universal ball (902) can rotate freely around the center of the ball; the horizontal column (901) is also provided with an adsorption unit for adsorbing the high-voltage incoming cabinet of the box transformer.

9. A load switch operating device for a high-voltage cabinet according to claim 8, characterized in that: The adsorption unit comprises a fixed sleeve (903) coaxially and slidably sleeved on a horizontal column (901), and a plurality of movable rods (904) circumferentially arranged on the horizontal column (901); the horizontal column (901) is circumferentially evenly provided with a plurality of grooves (905), and the grooves (905) are axially arranged along the horizontal column (901); a second universal ball (906) is movably connected to the bottom of the groove (905), and the second universal ball (906) can freely rotate around the center of the ball; one end of the movable rod (904) is connected to the second universal ball (906); The fixing sleeve (903) is evenly distributed in the circumferential direction with a plurality of elongated holes (907) adapted to the groove (905), and the elongated holes (907) are arranged axially along the fixing sleeve (903); the other end of the movable rod (904) extends out of the elongated hole (907), and the other end of the movable rod (904) is connected to a suction cup (908), an axis of the suction cup (908) and an axis of the movable rod (904) are at an angle to each other, and when the other end of the movable rod (904) swings in a direction away from the second slider (601), it is used to drive the suction cup (908) to be vertically adsorbed on the adsorption box transformer high-voltage incoming line cabinet; The fixing sleeve (903) is fixed to the open end of the second slider (601), and a hydraulic rod is provided in the open end of the second slider (601), and the hydraulic rod is used to drive the movable rod (904) to move along its own axis.

10. A load switch operating device for a high-voltage cabinet according to claim 9, characterized in that: The side wall of the fixed sleeve (903) is also provided with a compression spring (909), one end of the compression spring (909) is connected to the side wall of the fixed sleeve (903), and the other end of the compression spring (909) is connected to the other end of the movable rod (904); when the suction cup is adsorbed on the adsorption box to transform the high-voltage incoming line cabinet, the compression spring (909) is used to apply a pulling force to the other end of the movable rod (904).

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