Linkage type three-station isolation operation mechanism and ring main unit

Abstract

The utility model discloses a linkage type three-station isolation operation mechanism and a ring main unit, and relates to the technical field of high-voltage switch equipment, the linkage type three-station isolation operation mechanism comprises a shake detection assembly, the shake detection assembly comprises a shake piece, the top end of the shake piece is fixedly connected with a telescopic rod, the top end of the shake piece is fixedly connected with a movable spring, and the telescopic rod is fixedly connected with a telescopic rod. The movable springs are located on the outer sides of the telescopic rods, the top ends of the movable springs and the top ends of the telescopic rods are fixedly connected with contact plates, detectors are arranged above the contact plates, and the bottom ends of the detectors make contact with the top ends of the contact plates. The linkage type three-station isolation operation mechanism and the ring main unit have the technical effects of timely detecting abnormal shaking and giving an alarm, avoiding personnel injury caused by loosening, falling off and the like of parts, maintaining equipment before serious faults, reducing production stagnation, enabling maintenance personnel to quickly respond and guaranteeing production continuity.

Description

TECHNICAL FIELD

[0001] The utility model relates to high voltage switchgear technical field especially relates to a kind of linkage three-position isolation operating mechanism and ring main unit with. BACKGROUND

[0002] Ring main unit is a group of power transmission and distribution electrical equipment (high voltage switchgear) is in metal or non-metal insulation cabinet or is made into the electrical equipment of assembled interval type ring network power supply unit, its core part uses load switch and fuse, with Simple structure, small size, low price, can improve power supply parameter and performance and power supply safety and other advantages.It is widely used in urban residential area, high-rise building, large public building, factory enterprise and so on load center distribution station and box-type substation.

[0003] The linkage three-position isolation operating mechanism in current ring main unit, in long-term operation, due to component wear and tear and friction, prone to action delay, unstable operation condition, and further endanger the reliability of electrical system. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of linkage three-position isolation operating mechanism and ring main unit, to solve the technical problem that the action delay of current ring main unit in linkage three-position isolation operating mechanism possibly due to wear and tear, friction, unstable operation, affect the reliability of electrical system.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of linkage three-position isolation operating mechanism and ring main unit, including wobble detection component, the wobble detection component includes wobble piece, the top end of wobble piece is fixedly connected with telescopic link, and the top end of wobble piece is fixedly connected with movable spring, movable spring is located the outside of telescopic link, the top end of movable spring and telescopic link is fixedly connected with contact plate, the top of contact plate is provided with detector, and the bottom end of detector and the top of contact plate are contacted, the outside of detector is fixedly connected with fixed plate, the bottom end of wobble piece is fixedly connected with arc-shaped connecting piece, the top of arc-shaped connecting piece is fixedly connected with automatic emergency stop switch, and automatic emergency stop switch is located the front of detector.

[0007] When the linkage type three-station shakes due to multiple rotations, the shaking of the driving shaft will be transmitted to the shaking piece through the movable connection between the driving shaft and the inside of the shaking piece, and the shaking piece will start to shake after receiving the shaking. The shaking of the shaking piece makes the telescopic rod perform the telescopic action, and the movable spring will also be compressed or stretched due to the force, so as to play the role of guiding and limiting the shaking amplitude. The telescopic rod avoids too violent shaking, and the movable spring absorbs and buffers part of the shaking energy through the elastic deformation, reduces the direct impact of the shaking on the upper component, and the contact plate fixedly connected to the top end of the telescopic rod and the movable spring will displace along with the action of the telescopic rod and the movable spring. Since the detector is bolted above the contact plate and the bottom end of the detector is in contact with the top end of the contact plate, the displacement of the contact plate will change the contact state between the two. If the shaking amplitude reaches the set value, the contact plate will extrude or push the detector more obviously, so as to trigger the detector, and the detector starts to remind the remote control end and reminds the staff to detect. At the same time, the automatic emergency stop switch will be triggered, and the emergency stop mechanism of the related equipment is started, so as to avoid the equipment failure or safety accident caused by the shaking of the driving shaft. In the process, abnormal shaking can be found in time, and the parts loosening, falling off or even flying out caused by the shaking can be avoided, the risk of personal injury to the operator is reduced, timely detection and alarm can help to maintain the equipment before more serious failure occurs, reduce the production stagnation caused by equipment failure, and detection and alarm can shorten the production interruption time and ensure the continuity of production.

[0008] In a preferred scheme, the inside of the shaking piece is movably connected with the driving shaft, the outside of the driving shaft is movably connected with the outside of the automatic emergency stop switch, the outside of the driving shaft is fixedly connected with the sliding groove piece, the sliding groove piece is provided with a sliding groove, the inside of the sliding groove is movably connected with the rotating wheel, the inside of the rotating wheel is movably connected with the jib, the rear end of the jib is fixedly connected with the rotating main shaft, the outside of the rotating main shaft is fixedly connected with the connecting box, the outside of the rotating main shaft is fixedly connected with a plurality of rotating jibs, the front end of each of the plurality of rotating jibs is fixedly connected with the fixed piece, the front end of each of the fixed pieces is fixedly connected with the arc-extinguishing chamber, the top end of each of the arc-extinguishing chambers is fixedly connected with the movable contact seat, the top end of each of the movable contact seats is movably connected with the three-station contact, the top end of each of the three-station contacts is fixedly connected with the transmission driving piece, the end, away from the three-station contact, of the transmission driving piece is fixedly connected with the linkage jib, the rear side of each of the transmission driving pieces is fixedly connected with the bus sleeve, and the inside of each linkage jib is fixedly connected with the outside of the driving shaft.

[0009] The utility model discloses a linkage type three position switch, which comprises a drive shaft, a sliding groove piece, a rotating wheel, a top rod crank, a rotating main shaft, a connecting box, a rotating crank, a fixing piece, an arc extinguishing chamber, a moving contact seat, a three position contact, a transmission driving piece, a linkage crank and a bus sleeve.

[0010] The utility model provides an operating mechanism of ring net cabinet, including the operating mechanism of ring net cabinet that the utility model discloses a linkage type three position isolation, still include ring net cabinet body, the inner wall of ring net cabinet body and the one end of fixed plate away from detector fixedly connected, the one end of connecting box away from bus sleeve and the inner wall of ring net cabinet body fixedly connected, and connecting box is located the rear of wobble detection subassembly, the front end of a plurality of arc extinguish chambers all is fixedly connected with metal sheet, the one end of metal sheet away from arc extinguish chamber all is fixedly connected with circuit breaker, the rear side of circuit breaker and the inner wall of ring net cabinet body fixedly connected, and the front of circuit breaker is provided with the symmetrical circuit mutual inductor, and the below of circuit mutual inductor is provided with a plurality of sensors, and the front end of sensor and circuit mutual inductor all is fixedly connected with connecting plate, the front end of connecting plate all is fixedly connected with cabinet door, the inboard of cabinet door is fixedly connected with operating panel, and the rear end of operating panel and the front end of driving shaft fixedly connected.

[0011] Through being provided with ring net cabinet body, metal sheet, circuit breaker, circuit mutual inductor, sensor, connecting plate, cabinet door and operating panel, when working in the inside of ring net cabinet body, the operator operates on the operating panel in the inboard of cabinet door, selects the instruction such as grounding, isolation, closing, and operating panel receives these instruction signals, it as man-machine interface, the intention of operator is converted into electric signal, since the rear end of operating panel and the front end of driving shaft fixedly connected, when operating panel detects operating instruction, will be transmitted to the drive device of control driving shaft rotation through electric signal, driving shaft starts to rotate, drives the sliding groove piece fixed outside to rotate together, the rotating wheel in the sliding groove of sliding groove piece starts to roll, and then drives the swing of jib lever, jib lever drives the rotation of rotating spindle, rotating spindle drives the rotation of rotating crank, and the arc extinguish chamber of rotating crank front end fixed piece connects moves, the moving contact seat of arc extinguish chamber top and three position contact also change position accordingly, realize the contact or separation with different static contact, complete circuit state switching such as grounding, isolation, closing, and the movement of linkage crank is driven under the drive of transmission drive piece, and the connection of linkage crank and driving shaft ensures the cooperative work of whole linkage system, the circuit breaker connected with the metal sheet of arc extinguish chamber front end, when the circuit overload, short circuit and other faults, circuit breaker can automatically cut off the circuit, protect the safety of equipment and line, circuit mutual inductor is used for measuring the current and voltage in the circuit, converts high voltage, large current into low voltage, small current signal suitable for measuring and protection device, provides signal for relay protection device and measuring instrument, sensor real -time monitoring various parameters of circuit, such as temperature, humidity (specific according to sensor type) and so on, and these data are transmitted to the relevant control unit or display device, these sensors and circuit mutual inductor front end are fixedly connected with cabinet door through connecting plate, and they are closely related with the control and operation state monitoring of whole ring net cabinet, operating panel is responsible for receiving the instruction of operator, and also can display the running state information of ring net cabinet, such as grounding, isolation, closing state indicating lamp, and the circuit parameter that passes through sensor and mutual inductor comes etc.

[0012] From the above, the utility model provides a kind of with linkage three-position isolation operating mechanism and ring main unit with timely detection abnormal swing and alarm, can avoid personnel injury caused by component loosening, falling off etc., also can maintain before equipment serious fault, reduce production stagnation, let maintenance personnel fast response, the technical effect of guaranteeing production continuity. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The overall structure schematic diagram of the utility model is provided.

[0014] Figure 2 The ring main unit body structure schematic diagram of the utility model is provided.

[0015] Figure 3 The ring main unit body internal structure schematic diagram of the utility model is provided.

[0016] Figure 4 The bus duct structure schematic diagram of the utility model is provided.

[0017] Figure 5 The swing detection assembly structure schematic diagram of the utility model is provided.

[0018] In the drawing, 1, ring main unit body;2, cabinet door;3, operating panel;4, connecting plate;5, circuit mutual inductor;6, sensor;7, circuit breaker;8, metal plate;9, arc chamber;10, bus duct;11, connecting box;12, swing detection assembly;1201, swing piece;1202, movable spring;1203, telescopic rod;1204, contact plate;1205, detector;1206, fixed plate;1207, automatic emergency stop switch;1208, arc-shaped connecting piece;13, driving shaft;14, rotating main shaft;15, top rod crank;16, rotating wheel;17, sliding groove piece;18, rotating crank;19, fixed piece;20, linkage crank;21, movable contact seat;22, three-position contact;23, transmission driving piece. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] The utility model discloses a kind of linkage three-position isolation operating mechanism and ring main unit with main application in existing ring main unit in linkage three-position isolation operating mechanism possibly due to abrasion, friction cause action tardiness, unstable operation, affect the reliability of electrical system scene.

[0021] With reference to Figures 1-5 A kind of linkage three-position isolation operating mechanism and ring main unit with, including wobble detection component 12, wobble detection component 12 includes wobble piece 1201, the top end of wobble piece 1201 is connected with telescopic link 1203 by bolt, and the top end of wobble piece 1201 is connected with movable spring 1202 by bolt, movable spring 1202 is located the outside of telescopic link 1203, the top end of movable spring 1202 and telescopic link 1203 is all connected with contact plate 1204 by bolt, the top of contact plate 1204 is provided with detector 1205, and the bottom of detector 1205 and the top of contact plate 1204 are contacted, the outside of detector 1205 is connected with fixed plate 1206 by bolt, the bottom of wobble piece 1201 is connected with arc connecting piece 1208 by bolt, the top of arc connecting piece 1208 is connected with automatic emergency stop switch 1207 by bolt, and automatic emergency stop switch 1207 is located the front of detector 1205.

[0022] With reference to Figure 2 、 Figure 3 And Figure 4 In a preferred embodiment, the inside of wobble piece 1201 is rotatably connected with drive shaft 13, the outside of drive shaft 13 and the outside of automatic emergency stop switch 1207 are rotatably connected, and the outside of drive shaft 13 is connected with sliding groove piece 17 by bolt, sliding groove is formed on sliding groove piece 17, rotatable wheel 16 is rotatably connected in the inside of sliding groove, top rod crank 15 is rotatably connected to the inside of rotatable wheel 16, rear end of top rod crank 15 is connected with rotating main shaft 14 by bolt, and rotating main shaft 14 is connected with connecting box 11 by bolt, rotating main shaft 14 is connected with a plurality of rotating crank arms 18 by bolt, the front end of a plurality of rotating crank arms 18 is connected with fixed piece 19 by bolt, the front end of fixed piece 19 is connected with arc-extinguishing chamber 9 by bolt, and the top of arc-extinguishing chamber 9 is connected with movable contact seat 21 by bolt, the top of movable contact seat 21 is rotatably connected with three-position contact 22, the top of a plurality of three-position contacts 22 is connected with transmission driving piece 23 by bolt, one end of transmission driving piece 23 away from three-position contact 22 is connected with linkage crank 20 by bolt, and the rear side of transmission driving piece 23 is connected with bus sleeve 10 by bolt, and the inside of linkage crank 20 and the outside of drive shaft 13 are connected by bolt.

[0023] With reference to Figure 1 、 Figure 2 And Figure 3The utility model relates to a ring main unit, including the linkage type three position isolation operating mechanism with above-mentioned, still include ring main unit body 1, the inner wall of ring main unit body 1 is apart from the one end of fixed plate 1206 away from detector 1205 between through bolt connection, the inner wall of ring main unit body 1 is apart from the one end of connecting box 11 away from bus sleeve 10 between through bolt connection, and connecting box 11 is located the rear of swing detection subassembly 12, the front end of multiple arc-extinguishing chambers 9 all are connected with the metal plate 8 through bolt, the one end of metal plate 8 away from arc-extinguishing chamber 9 all are connected with circuit breaker 7 through bolt, the rear side of circuit breaker 7 and the inner wall of ring main unit body 1 between through bolt connection, the front of circuit breaker 7 is provided with the symmetrical circuit mutual inductor 5, the below of circuit mutual inductor 5 is provided with a plurality of sensors 6, and the front end of sensor 6 and circuit mutual inductor 5 all are connected with the connecting plate 4 through bolt, the front end of connecting plate 4 all are connected with the cabinet door 2 through bolt, the inboard of cabinet door 2 is connected with operating panel 3 through bolt, the rear end of operating panel 3 and the front end of driving shaft 13 between through bolt connection.

[0024] Working principle: when the inside of the ring net cabinet body 1 works, the operator operates on the operation panel 3 on the inside of the cabinet door 2, selects the grounding, isolation, closing and other instructions, the operation panel 3 receives these instruction signals, it as a man-machine interface, converts the intention of the operator into an electrical signal, because the rear end of the operation panel 3 is fixedly connected with the front end of the driving shaft 13, when the operation panel 3 detects the operation instruction, it will transmit the electrical signal to the driving device which controls the rotation of the driving shaft 13, the driving shaft 13 starts to rotate, driving the fixed sliding groove piece 17 on the outside to rotate together, the rotating wheel 16 in the sliding groove on the sliding groove piece 17 starts to roll, and then drives the top rod crank arm 15 to swing, the top rod crank arm 15 drives the rotating main shaft 14 to rotate, the rotating main shaft 14 drives the rotating crank arm 18 to rotate, the arc extinguishing chamber 9 connected with the front end fixed piece 19 of the rotating crank arm 18 moves accordingly, the moving contact seat 21 and the three-position contact 22 at the top end of the arc extinguishing chamber 9 also change positions accordingly, realizing contact or separation with different static contacts, completing the circuit state switching such as grounding, isolation and closing, the linkage crank arm 20 moves under the driving of the transmission driving piece 23, and the connection between the linkage crank arm 20 and the driving shaft 13 ensures the cooperative work of the whole linkage system, during the movement of the driving shaft 13 and the related parts, if the driving shaft 13 shakes due to multiple rotations, the shaking will be transmitted to the shaking piece 1201 which is movably connected with the driving shaft 13, the telescopic rod 1203 at the top end of the shaking piece 1201 and the movable spring 1202 will act, the contact plate 1204 will change with displacement, if the shaking amplitude reaches a certain degree, the detector 1205 will be triggered and an alarm will be given, at the same time, the automatic emergency stop switch 1207 connected with the bottom end of the shaking piece 1201 will also respond, if the trigger condition is met, the emergency stop mechanism will be started, preventing the equipment from being damaged due to excessive shaking, the circuit breaker 7 connected with the front end metal plate 8 of the arc extinguishing chamber 9 plays a control and protection role in the circuit, when overloading, short circuit and other faults occur in the circuit, the circuit breaker 7 can automatically cut off the circuit to protect the safety of the equipment and the line, the circuit transformer 5 is used to measure the current and voltage in the circuit, and convert high voltage and large current into low voltage and small current signals suitable for measurement and protection devices, providing signals for relay protection devices and measuring instruments, the sensor 6 monitors various parameters of the circuit in real time, such as temperature, humidity, etc. (determined according to the type of sensor 6), and transmits these data to the related control unit or display device, the front ends of these sensors 6 and circuit transformers 5 are fixedly connected with the cabinet door 2 through the connecting plate 4, they are closely related to the control and operation state monitoring of the whole ring net cabinet, the operation panel 3 not only receives the instructions of the operator, but also may display the running state information of the ring net cabinet, such as grounding, isolation, closing state indicator lights, and circuit parameters transmitted by sensors 6 and transformers.

[0025] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. A linkage tri-position isolation operating mechanism having a sway detection assembly (12) characterized by, The shaking detection assembly (12) comprises a shaking member (1201), the top end of the shaking member (1201) is fixedly connected with a telescopic rod (1203), and the top end of the shaking member (1201) is fixedly connected with a movable spring (1202); the movable spring (1202) is located outside the telescopic rod (1203); the top end of the movable spring (1202) and the telescopic rod (1203) is fixedly connected with a contact plate (1204); the upper side of the contact plate (1204) is provided with a detector (1205), and the bottom end of the detector (1205) is in contact with the top end of the contact plate (1204); the outer side of the detector (1205) is fixedly connected with a fixed plate (1206); the bottom end of the shaking member (1201) is fixedly connected with an arc-shaped connecting piece (1208); the top end of the arc-shaped connecting piece (1208) is fixedly connected with an automatic emergency stop switch (1207), and the automatic emergency stop switch (1207) is located in front of the detector (1205).

2. A linkage tri-position isolation operating mechanism according to claim 1, wherein, The inside of the shaking member (1201) is movably connected with a driving shaft (13), the outer side of the driving shaft (13) is movably connected with the outer side of the automatic emergency stop switch (1207), and the outer side of the driving shaft (13) is fixedly connected with a sliding groove member (17); the sliding groove member (17) is provided with a sliding groove; the inside of the sliding groove is movably connected with a rotating wheel (16).

3. A linkage tri-position isolation operating mechanism according to claim 2, wherein, The inner side of the rotating wheel (16) is movably connected with a top rod crank arm (15), the rear end of the top rod crank arm (15) is fixedly connected with a rotating main shaft (14), the outer side of the rotating main shaft (14) is fixedly connected with a connecting box (11), and the outer side of the rotating main shaft (14) is fixedly connected with a plurality of rotating crank arms (18).

4. A linkage tri-position isolation operating mechanism according to claim 3, wherein, The front end of each of the plurality of rotating crank arms (18) is fixedly connected with a fixed piece (19), the front end of each of the fixed pieces (19) is fixedly connected with an arc-extinguishing chamber (9), the top end of each of the arc-extinguishing chambers (9) is fixedly connected with a moving contact seat (21), and the top end of each of the moving contact seats (21) is movably connected with a three-position contact (22).

5. A linkage tri-seal operation mechanism according to claim 4, wherein, The top end of each of the plurality of three-position contacts (22) is fixedly connected with a transmission driving piece (23), one end of the transmission driving piece (23) away from the three-position contact (22) is fixedly connected with a linkage crank arm (20), the rear side of each of the transmission driving pieces (23) is fixedly connected with a bus sleeve (10), and the inner side of the linkage crank arm (20) is fixedly connected with the outer side of the driving shaft (13).

6. A ring main unit comprising a linkage type three-position isolating operating mechanism according to any one of claims 1 to 5, characterized in that, Further comprising a ring network cabinet body (1), the inner wall of the ring network cabinet body (1) is fixedly connected with one end of the fixed plate (1206) away from the detector (1205), one end of the connecting box (11) away from the bus sleeve (10) is fixedly connected with the inner wall of the ring network cabinet body (1), the connecting box (11) is located behind the shaking detection assembly (12), the front end of each of the plurality of arc-extinguishing chambers (9) is fixedly connected with a metal plate (8), and one end of each of the metal plates (8) away from the arc-extinguishing chamber (9) is fixedly connected with a circuit breaker (7).

7. The ring main unit according to claim 6, characterized in that The rear side of the circuit breaker (7) is fixedly connected with the inner wall of the ring net cabinet body (1), the front of the circuit breaker (7) is provided with symmetrical circuit transformers (5), a plurality of sensors (6) are arranged below the circuit transformers (5), and the front ends of the sensors (6) and the circuit transformers (5) are fixedly connected with connecting plates (4), the front ends of the connecting plates (4) are fixedly connected with cabinet doors (2), the inner side of the cabinet door (2) is fixedly connected with an operation panel (3), and the rear end of the operation panel (3) is fixedly connected with the front end of a driving shaft (13).

Images