A vacuum circuit breaker capable of monitoring opening and closing speeds and its usage method

Abstract

The present invention provides a vacuum circuit breaker capable of monitoring the opening and closing speeds and its usage method, belonging to the field of circuit breakers, and solving the problems that the opening and closing speeds cannot be monitored in real time; at the same time, for the monitored results, the device cannot be automatically adjusted and manual maintenance is still required; the technical solution is as follows: it includes a housing, a self-adjusting energy storage component, a self-adjusting opening component, a speed measurement component, a closing coil, an opening coil, a first partition board, a second partition board and a third partition board; the self-adjusting energy storage component includes an energy storage component, a clutch component and an energy storage spring adjustment component. The beneficial effects of the present invention are as follows: the present invention indirectly measures the speed at the rotating shaft end of the self-adjusting opening component through the speed measurement component, thereby measuring the opening and closing speeds, with a simple structure and convenient measurement; the transmission between the energy storage component and the energy storage spring adjustment component is controlled through the clutch component, so that when calibration is required, the driving end of the energy storage component can be directly used for automatic calibration, and they are automatically separated after calibration is completed, saving the cost of manual maintenance.

Description

Technical Field

[0001] The present invention belongs to the field of circuit breakers, and particularly relates to a vacuum circuit breaker capable of monitoring the opening and closing speeds and a method for using the same. Background Art

[0002] Vacuum circuit breakers are often used in high-voltage circuits as control components for opening and closing circuits. To avoid arcing at the contacts of the circuit breaker, when closing and opening, the contacts need to reach a certain speed and open and close quickly. The acceleration of its mechanism is mainly achieved by spring energy storage. Therefore, after being used for a period of time, the speed may become slow due to the loosening of the spring.

[0003] The invention with the publication number CN112305414B discloses a device for measuring the opening and closing speeds of an ultra-high voltage vacuum circuit breaker. By installing the device near the opening and closing tie rods and installing sensors inside the housing of the device, when it is necessary to measure the opening and closing speeds, the transmission components inside the housing are started, and the sensors are extended from inside the housing for measurement, thereby realizing the monitoring of the opening and closing speeds.

[0004] However, the structure of the above invention is relatively complex, and it is necessary to extend the sensor in advance for preparation during measurement, and it cannot monitor the opening and closing speeds in real time. At the same time, for the monitoring results, the device cannot be automatically adjusted, and manual maintenance is still required.

[0005] Based on this, the present invention designs a vacuum circuit breaker capable of monitoring the opening and closing speeds and a method for using the same to solve the above problems. Summary of the Invention

[0006] Aiming at the disadvantages of the prior art that the opening and closing speeds cannot be monitored in real time, and at the same time, for the monitoring results, the device cannot be automatically adjusted and manual maintenance is still required, the present invention provides a vacuum circuit breaker capable of monitoring the opening and closing speeds and a method for using the same.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A vacuum circuit breaker capable of monitoring the opening and closing speeds includes a housing;

[0009] The inner wall of the housing is fixedly connected to the side walls of a first partition, a second partition, and a third partition for supporting each component in sequence from left to right;

[0010] An automatic-adjusting energy storage component for energy storage and for automatically adjusting the closing speed is installed inside the housing. The clutch end of the automatic-adjusting energy storage component is connected to the bottom of the housing, and the rotating shaft end of the automatic-adjusting energy storage component is connected to the side walls of the second partition and the third partition;

[0011] A self-adjusting opening brake component for opening the brake and automatically adjusting the opening speed is installed inside the housing, and the rotating shaft end and the spring support end of the self-adjusting opening brake component are connected to the side walls of the first partition plate, the second partition plate and the third partition plate;

[0012] The rotating shaft end of the self-regulating opening switch assembly is connected to the movable end of the speed measuring assembly used to measure the opening and closing speed, and the fixed end of the speed measuring assembly is connected to the side wall of the first partition plate;

[0013] The lower end of the right side wall of the second partition is fixedly connected to the side wall of the closing coil, and the upper end of the left side wall of the first partition is fixedly connected to the side wall of the opening coil;

[0014] The self-adjusting energy storage component includes an energy storage component, a clutch component, and an energy storage spring adjustment component; the energy storage component is located inside the shell, and the rotating shaft end of the energy storage component is connected to the side walls of the second partition and the third partition, and the driving end of the energy storage component is connected to the input end of the clutch component; the bottom of the shell is connected to the fixed end of the clutch component; the energy storage spring adjustment component is installed inside the clutch component, and the top of the energy storage spring adjustment component is connected to the bottom of the shell.

[0015] Furthermore, the energy storage assembly includes an energy storage motor, a reduction gear housing, a first gear, a second gear, a first energy storage shaft, a one-way chain assembly, a second energy storage shaft, an energy storage crankshaft, an energy storage spring, an energy storage cam, a convex shaft, a closing flip shaft, an energy storage block and a closing flip plate; the lower end of the right side wall of the second partition is fixedly connected to the left side wall of the reduction gear housing; the right side wall of the reduction gear housing is fixedly connected with the energy storage motor, the driving end of the energy storage motor passes through the reduction gear housing and is rotatably connected to the side wall of the second partition, the driving end side wall of the energy storage motor is fixedly connected to the inner wall of the shaft hole of the first gear, and the driving end side wall of the energy storage motor is connected to the input end of the clutch assembly; the first gear and the second gear are both located inside the reduction gear housing, the top of the first gear is meshed with the bottom of the second gear, and the inner wall of the shaft hole of the second gear is fixedly connected to the side wall of the first energy storage shaft; the left and right sides of the first energy storage shaft The ends are rotatably connected to the side walls of the second partition and the third partition respectively, and the first energy storage shaft and the second energy storage shaft are transmission-connected through a one-way chain assembly; the left and right end side walls of the second energy storage shaft are rotatably connected to the side walls of the second partition and the third partition respectively, and the left end side wall of the second energy storage shaft is connected to the baffle end of the self-adjusting splitter assembly; the left and right ends of the second energy storage shaft are fixedly connected with energy storage crankshafts, and the outer end of the energy storage crankshaft is connected to the upper end of the energy storage spring; the lower end of the energy storage spring is connected to the movable end of the energy storage spring adjustment assembly; the middle end of the second energy storage shaft is fixedly connected to the inner end of the energy storage cam, and the left side wall of the energy storage cam is fixedly connected to the right end of the convex shaft; the left and right ends of the closing flip shaft are rotatably connected to the front end of the side walls of the second partition and the third partition respectively, the left end side wall of the closing flip shaft is fixedly connected to the inner end of the energy storage block, and the rear end side wall of the closing flip sheet is fixedly connected to the front end side wall of the energy storage block.

[0016] Further, the clutch assembly includes a pulley, a left bracket, a right bracket, a sliding bearing seat, a one-way bearing, a left drive shaft, a right drive shaft, a left hub, a right hub, a belt, a holding electromagnet, an auxiliary support seat, and a clutch assembly housing; the bottom of the housing is fixedly connected to the top of the clutch assembly housing; the left and right ends of the inner bottom of the clutch assembly housing are respectively fixedly connected to the bottoms of the left bracket and the right bracket; the left side wall of the clutch assembly housing is fixedly connected with a holding electromagnet, and the output end of the holding electromagnet passes through the clutch assembly housing and is fixedly connected to the left end of the sliding bearing seat, and the side wall of the sliding bearing seat is in sliding fit with the inner wall of the left bracket; the left end of the left drive shaft is rotatably connected to the inner wall of the sliding bearing seat through a one-way bearing; the right end of the left drive shaft is fixedly connected to the left side wall of the left hub; the left end of the right drive shaft is fixedly connected to the right side wall of the right hub, and the right end of the right drive shaft is rotatably connected to the inner wall of the right bracket through a one-way bearing; the inner end inner wall of the left hub is in sliding fit with the inner end side wall of the right hub; the drive end side wall of the energy storage motor is fixedly connected to the inner wall of the shaft hole of the pulley; the upper left and right side walls of the belt are in contact connection with the inner end side wall of the pulley, and the lower left and right side walls of the belt are respectively in contact connection with the inner end side walls of the left hub (228) and the right hub (229); the side walls of the left drive shaft and the right drive shaft are respectively rotatably connected to the upper ends of one or more groups of auxiliary support seats, and the bottoms of the auxiliary support seats are fixedly connected to the inner bottom of the clutch assembly housing; the side walls of the left drive shaft and the right drive shaft are both fixedly connected to the gear ends of the energy storage spring adjustment assembly.

[0017] Further, the energy storage spring adjustment assembly includes an adjustment gear, an adjustment rack, a spring base, and a guide rail assembly; the side walls of the left drive shaft and the right drive shaft are respectively fixedly connected to the inner walls of the shaft holes of the adjustment gear; the front end of the adjustment gear is meshed with the rear end of the adjustment rack, and the top of the adjustment rack is fixedly connected to the bottom of the spring base; the spring base is slidably connected to the bottom of the housing through a circular slot hole, and the top of the spring base is connected to the lower end of the energy storage spring; the front end side wall of the adjustment rack is fixedly connected to the slider end of the guide rail assembly, and the upper and lower ends of the guide rail end of the guide rail assembly are respectively fixedly connected to the bottom of the housing and the inner bottom of the clutch assembly housing.

[0018] Further, the upper end of the energy storage spring is rotatably connected to the energy storage crankshaft, and the lower end of the energy storage spring is rotatably connected to the spring base through a hinge seat.

[0019] Further, the self-adjusting opening component includes an opening component and an opening spring adjusting component; the opening component is installed inside the housing; the rotating shaft end of the opening component is connected to the speed measuring component, the rotating shaft end of the opening component is connected to the side walls of the first partition, the second partition, and the third partition, the baffle end of the opening component is connected to the second energy storage shaft, and the spring end of the opening component is connected to the movable end of the opening spring adjusting component; the movable end of the opening spring adjusting component is connected to the side walls of the first partition, the second partition, and the third partition, and the fixed end of the opening spring adjusting component is connected to the inner bottom of the housing.

[0020] Further, the opening component includes a crankshaft, a crank transmission component, a crank cam, a first pawl, an opening turning shaft, a second pawl, a scroll spring, a first baffle, a second baffle, and an opening turning piece; the side wall of the crankshaft is rotatably connected to the side walls of the first partition, the second partition, the third partition, and the right inner wall of the housing from left to right in sequence; the side wall of the crankshaft is rotatably connected to the upper ends of three groups of crank transmission components, the spring end of the crank transmission component is connected to the movable end of the opening spring adjusting component, and the end of the crank transmission component is connected to an external contact; the middle end of the crankshaft is fixedly connected to the inner end of the crank cam, and the crank cam is located directly behind the energy storage cam; the right side wall of the crankshaft is fixedly connected to the inner end of the second pawl; the side wall of the opening turning shaft is rotatably connected to the left inner wall of the housing, the side walls of the first partition, the second partition, the third partition, and the right inner wall of the housing from left to right in sequence, and the right side wall of the opening turning shaft is fixedly connected to the inner end of the first pawl; the inner and outer ends of the scroll spring are respectively fixedly connected to the left side wall of the third partition and the right side wall of the first pawl; the right side wall of the second energy storage shaft is rotatably connected to the inner ends of the first baffle and the second baffle, and the inner ends of the first baffle and the second baffle are fixedly connected; the upper end of the first baffle is in contact connection with the outer end of the first pawl, and the lower end of the second baffle is in contact connection with the outer end of the second pawl; the first pawl, the second pawl, the first baffle, and the second baffle are located in the same vertical plane; the left side wall of the opening turning shaft is fixedly connected to the bottom of the opening turning piece, and the front end of the opening turning piece is directly above the output end of the opening coil.

[0021] Further, the opening spring adjusting component includes an electric push rod, a bushing, a spring support rod, a support rod chute, and a limit block; the inner bottom of the housing is fixedly connected to the bottom of the electric push rod; the output end of the electric push rod is fixedly connected to the bottom of the bushing; the inner wall of the bushing is fixedly connected to the middle end of the spring support rod; support rod chutes are provided on the side walls of the first partition, the second partition, the third partition, and the right side wall of the housing, and the side wall of the spring support rod is slidably connected to the inner wall of the support rod chute; the left and right ends of the spring support rod are fixedly connected to the inner side walls of the limit blocks, and the inner ends of the left and right limit blocks are respectively in contact connection with the left side wall of the first partition and the right side wall of the housing.

[0022] Further, the speed measurement component includes a speed measurement runner, a reflective sheet, and sensors; a speed measurement runner is fixedly connected to the left side wall of the crankshaft, and a reflective sheet is fixedly connected to the left side wall of the speed measurement runner; two groups of sensors are fixedly connected to the upper end of the right side wall of the first partition board, and the sensors are located on the rotation path of the reflective sheet.

[0023] A usage method of a vacuum circuit breaker capable of monitoring the opening and closing speeds includes the following steps:

[0024] Step 1: Start the energy storage motor of the energy storage component of the self-regulating energy storage component to drive the belt pulley of the first gear and the clutch component to rotate. At this time, keep the electromagnet in a contracted state, so the left hub and the right hub do not rotate; the first gear is sequentially driven by the second gear, the first energy storage shaft, and the one-way chain component to rotate the second energy storage shaft; the energy storage crankshafts at both ends of the second energy storage shaft rotate upward accordingly, the energy storage spring is stretched, and the energy storage cam on the second energy storage shaft also rotates accordingly. Until after rotating half a circle, the convex shaft on the energy storage cam touches the end of the energy storage stop block and cannot continue to rotate, and the energy storage stops; when closing, the closing coil is started to push the lower end of the closing flip piece, driving the closing flip shaft and the energy storage stop block to rotate downward, the convex shaft and the energy storage stop block are separated, and the second energy storage shaft without limit rotates under the contraction of the energy storage spring, driving the energy storage cam to rotate, and the energy storage cam drives the cam end of the self-regulating opening component to rotate, so that the crank end of the self-regulating opening component drives the external contact head to lift up for closing; the rotation speed of the rotating shaft end of the self-regulating opening component is measured by the speed measurement component, so as to indirectly obtain the closing speed; if the closing speed is low, keep the electromagnet extended, drive the sliding bearing seat to slide along the left bracket, the sliding bearing seat drives the one-way bearing and the left transmission shaft to slide to the right, so that the distance between the left hub and the right hub is shortened, the belt is squeezed, and at this time the belt pulley is in transmission connection with the left hub and the right hub; when storing energy next time, the energy storage motor rotates to drive the belt pulley to rotate, drives the left hub and the right hub to rotate through the belt, rotates the left transmission shaft and the right transmission shaft, and the left transmission shaft and the right transmission shaft drive the adjusting gear of the energy storage spring adjusting component to rotate, so that the adjusting rack slides down along the guide rail component, drives the spring base to move down, and the bottom of the energy storage spring drops, so that the stretching amount increases and the elastic force becomes larger; after closing again and measuring the speed, if the speed returns to normal, keep the electromagnet contracted, so that the left hub and the right hub are disengaged from the belt again to complete calibration, and the one-way bearing makes the left transmission shaft and the right transmission shaft unable to rotate in the reverse direction, so that the spring base is fixed.

[0025] Step 2: When closing the circuit, the energy storage cam drives the crank cam of the opening circuit assembly to rotate downward, and the crank shaft drives the upper end of the crank transmission assembly to rotate downward, so that the end of the crank transmission assembly drives the external contact to close the circuit; at the same time, the crank shaft drives the second pawl to rotate downward, and the outer end of the second pawl slides along the rear end of the second baffle to the lower end of the second baffle, and the first pawl swings downward under the action of the spiral spring, and the outer end of the first pawl slides along the arc surface of the upper end of the first baffle to the rear end of the first baffle, and the rear end of the first baffle is pressed against, so that the first baffle cannot flip downward, and the outer end of the second pawl cannot slide from the bottom of the second baffle to the rear end of the second baffle again, so that the crank shaft is stuck, and the closing of the circuit is completed; When the gate needs to be opened, the opening coil starts to lift the front end of the opening flip plate, driving the opening flip shaft to rotate, thereby driving the first latch to rotate, and the first latch and the first baffle are separated; at this time, the second latch is active, and the crank transmission assembly is folded under the action of the contraction of its own spring end, and the upper end of the crank transmission assembly rotates and resets along the crank shaft, and the end of the crank transmission assembly descends to drive the external contacts to open the gate; at this time, the rotation speed of the crank shaft is measured to obtain the opening speed. When the opening speed is low, the electric push rod of the opening spring adjustment assembly is started, and the output end of the electric push rod drives the sleeve to move upward, thereby driving the spring support rod to move upward along the support rod slide groove, thereby stretching the spring end of the crank transmission assembly and increasing the spring tension.

[0026] Step 3. Every time the switch is closed or opened, the crank shaft will rotate, driving the speed measuring wheel to rotate back and forth. At this time, the reflective sheet passes through the two sets of sensors in turn, and the passing time is recorded to obtain the shaft speed when the switch is closed or opened, and thus the closing and opening speed.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention indirectly measures the shaft end speed of the self-regulating opening and closing components through a speed measuring component, thereby measuring the opening and closing speeds. The structure is simple and easy to measure. The transmission between the energy storage component and the energy storage spring adjustment component is controlled by a clutch component, so that when calibration is required, the driving end of the energy storage component can be directly used for automatic calibration, and it automatically separates after the calibration is completed, saving the cost of manual maintenance.

[0029] 2. The present invention can automatically adjust the opening speed by automatically testing and adjusting the spring length of the crank transmission assembly, and the springs of the crank transmission assembly are connected in series through the spring support rod, and the tension can be adjusted at the same time, so that the force is more uniform and the manpower maintenance cost is saved.

[0030] 3. Each time the present invention closes or opens the switch, the crankshaft rotates, driving the speed measurement runner to rotate back and forth. At this time, the reflective pieces sequentially pass through two groups of sensors, and the passing time is recorded to obtain the rotational speed of the rotating shaft during closing and opening, thereby obtaining the closing and opening speeds. The closing and opening speeds are indirectly measured by the time when the reflective pieces pass through the sensors, and the device structure is simpler and easier to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0032] Figure 1 is a three-dimensional view of the main structure of a vacuum circuit breaker capable of monitoring the closing and opening speeds of the present invention;

[0033] Figure 2 is a front view of the structure of a vacuum circuit breaker capable of monitoring the closing and opening speeds of the present invention;

[0034] Figure 3 is a left view of the structure of a vacuum circuit breaker capable of monitoring the closing and opening speeds of the present invention;

[0035] Figure 4 is a sectional view along the Figure 2 A-A direction;

[0036] Figure 5 is a sectional view along the Figure 2 B-B direction;

[0037] Figure 6 is a sectional view along the Figure 3 C-C direction;

[0038] Figure 7 is a sectional view along the Figure 3 D-D direction;

[0039] Figure 8 is a sectional view along the Figure 3 E-E direction;

[0040] Figure 9 is a sectional view along the Figure 3 F-F direction;

[0041] Figure 10 is Figure 7 an enlarged view of the G position in;

[0042] Figure 11 is Figure 9 an enlarged view of the H position in.

[0043] The reference numerals in the drawings respectively represent:

[0044] 1. Housing; 2. Self-regulating energy storage assembly; 21. Energy storage assembly; 211. Energy storage motor; 212. Reducer housing; 213. First gear; 214. Second gear; 215. First energy storage shaft; 216. One-way chain assembly; 217. Second energy storage shaft; 218. Energy storage crankshaft; 219. Energy storage spring; 2110. Energy storage cam; 2111. Camshaft; 2112. Closing flip shaft; 2113. Energy storage stop block; 2114. Closing flip piece; 22. Clutch assembly; 221. Pulley; 222. Left bracket; 223. Right bracket; 224. Sliding bearing seat; 225. One-way bearing; 226. Left drive shaft; 227. Right drive shaft; 228. Left hub; 229. Right hub; 2210. Belt; 2211. Holding electromagnet; 2212. Auxiliary support seat; 2213. Clutch assembly housing; 23. Energy storage spring adjustment assembly; 231. Adjusting gear; 232. Adjusting rack; 233. Spring base; 234. Guide rail assembly; 3. Self-regulating opening assembly; 31. Opening assembly; 311. Crankshaft; 312. Crank drive assembly; 313. Crank cam; 314. First detent; 315. Opening flip shaft; 316. Second detent; 317. Volute spring; 318. First baffle; 319. Second baffle; 3110. Opening flip piece; 32. Opening spring adjustment assembly; 321. Electric push rod; 322. Bush; 323. Spring support rod; 324. Support rod chute; 325. Limit block; 4. Speed measurement assembly; 41. Speed measurement runner; 42. Reflective piece; 43. Sensor; 5. Closing coil; 6. Opening coil; 7. First partition; 8. Second partition; 9. Third partition. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following embodiments further elaborate on the present invention. Of course, the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Embodiment

[0046] Please refer to the attached Figures 1-11 description, a vacuum circuit breaker capable of monitoring the opening and closing speeds includes a housing 1.

[0047] The inner wall of the housing 1 is fixedly connected to the side walls of the first partition 7, the second partition 8, and the third partition 9 for supporting each component in sequence from left to right;

[0048] An internally installed self-regulating energy storage assembly 2 for energy storage and automatically regulating the closing speed, the clutch end of the self-regulating energy storage assembly 2 is connected to the bottom of the housing 1, and the rotating shaft end of the self-regulating energy storage assembly 2 is connected to the side walls of the second partition 8 and the third partition 9;

[0049] Inside the housing 1, a self - regulating opening component 3 for opening and automatically adjusting the opening speed is installed. The shaft end and spring support end of the self - regulating opening component 3 are connected to the side walls of the first partition 7, the second partition 8, and the third partition 9;

[0050] The shaft end of the self - regulating opening component 3 is connected to the movable end of a speed - measuring component 4 for measuring the opening and closing speed, and the fixed end of the speed - measuring component 4 is connected to the side wall of the first partition 7;

[0051] The lower end of the right - hand side wall of the second partition 8 is fixedly connected to the side wall of the closing coil 5, and the upper end of the left - hand side wall of the first partition 7 is fixedly connected to the side wall of the opening coil 6;

[0052] The self - regulating energy - storage component 2 includes an energy - storage component 21, a clutch component 22, and an energy - storage spring adjusting component 23. The energy - storage component 21 is located inside the housing 1, and the shaft end of the energy - storage component 21 is connected to the side walls of the second partition 8 and the third partition 9. The driving end of the energy - storage component 21 is connected to the input end of the clutch component 22. The bottom of the housing 1 is connected to the fixed end of the clutch component 22. Inside the clutch component 22, an energy - storage spring adjusting component 23 is installed, and the top of the energy - storage spring adjusting component 23 is connected to the bottom of the housing 1.

[0053] The energy storage assembly 21 includes an energy storage motor 211, a reduction gear housing 212, a first gear 213, a second gear 214, a first energy storage shaft 215, a one-way chain assembly 216, a second energy storage shaft 217, an energy storage crankshaft 218, an energy storage spring 219, an energy storage cam 2110, a cam shaft 2111, a closing flip shaft 2112, an energy storage block 2113 and a closing flip sheet 2114; the lower end of the right side wall of the second partition 8 is fixedly connected to the left side wall of the reduction gear housing 212; the energy storage motor is fixedly connected to the right side wall of the reduction gear housing 212 211, the driving end of the energy storage motor 211 passes through the reduction box housing 212 and is rotatably connected to the side wall of the second partition 8, the driving end side wall of the energy storage motor 211 is fixedly connected to the inner wall of the shaft hole of the first gear 213, and the driving end side wall of the energy storage motor 211 is connected to the input end of the clutch assembly 22; the first gear 213 and the second gear 214 are both located inside the reduction box housing 212, the top of the first gear 213 is meshed with the bottom of the second gear 214, and the inner wall of the shaft hole of the second gear 214 is fixedly connected to the side wall of the first energy storage shaft 215; the first The left and right ends of the energy storage shaft 215 are rotatably connected to the side walls of the second partition plate 8 and the third partition plate 9, respectively. The first energy storage shaft 215 and the second energy storage shaft 217 are connected by a one-way chain assembly 216. The left and right end side walls of the second energy storage shaft 217 are rotatably connected to the side walls of the second partition plate 8 and the third partition plate 9, respectively. The left end side wall of the second energy storage shaft 217 is connected to the baffle end of the self-adjusting opening brake assembly 3. The left and right ends of the second energy storage shaft 217 are fixedly connected with an energy storage crankshaft 218, and the outer end of the energy storage crankshaft 218 is connected to the upper end of the energy storage spring 219. The lower end of the energy spring 219 is connected to the movable end of the energy storage spring adjustment assembly 23; the middle end of the second energy storage shaft 217 is fixedly connected to the inner end of the energy storage cam 2110, and the left side wall of the energy storage cam 2110 is fixedly connected to the right end of the convex shaft 2111; the left and right ends of the closing flip shaft 2112 are respectively rotatably connected to the front end of the side walls of the second partition 8 and the third partition 9, the left end side wall of the closing flip shaft 2112 is fixedly connected to the inner end of the energy storage block 2113, and the rear end side wall of the closing flip piece 2114 is fixedly connected to the front end side wall of the energy storage block 2113.

[0054] The clutch assembly 22 includes a pulley 221, a left bracket 222, a right bracket 223, a sliding bearing seat 224, a one-way bearing 225, a left transmission shaft 226, a right transmission shaft 227, a left hub 228, a right hub 229, a belt 2210, a holding electromagnet 2211, an auxiliary support seat 2212 and a clutch assembly housing 2213; the bottom of the housing 1 is fixedly connected to the top of the clutch assembly housing 2213; the left and right ends of the inner bottom of the clutch assembly housing 2213 are respectively fixedly connected to the bottoms of the left bracket 222 and the right bracket 223; the left side wall of the clutch assembly housing 2213 is fixedly connected to the holding electromagnet 2211, and the output end of the holding electromagnet 2211 passes through the clutch assembly housing 2213 and is fixedly connected to the left end of the sliding bearing seat 224, and the side wall of the sliding bearing seat 224 is in sliding fit with the inner wall of the left bracket 222; the left end of the left transmission shaft 226 is rotatably connected to the inner wall of the sliding bearing seat 224 through the one-way bearing 225; the right end of the left transmission shaft 226 is fixedly connected to the left side wall of the left hub 228; the left end of the right transmission shaft 227 is fixedly connected to the right side wall of the right hub 229, and the right end of the right transmission shaft 227 is rotatably connected to the inner wall of the right bracket 223 through the one-way bearing 225; the inner end inner wall of the left hub 228 is in sliding fit with the inner end side wall of the right hub 229; the side wall of the driving end of the energy storage motor 211 is fixedly connected to the inner wall of the shaft hole of the pulley 221; the upper left and right side walls of the belt 2210 are in contact connection with the inner end side wall of the pulley 221, and the lower left and right side walls of the belt (2210) are respectively in contact connection with the inner end side walls of the left hub (228) and the right hub (229); the side walls of the left transmission shaft 226 and the right transmission shaft 227 are respectively rotatably connected to the upper ends of one or more groups of auxiliary support seats 2212, and the bottoms of the auxiliary support seats 2212 are fixedly connected to the inner bottom of the clutch assembly housing 2213; the side walls of the left transmission shaft 226 and the right transmission shaft 227 are both fixedly connected to the gear end of the energy storage spring adjustment assembly 23.

[0055] The energy storage spring adjustment assembly 23 includes an adjustment gear 231, an adjustment rack 232, a spring base 233 and a guide rail assembly 234; the side walls of the left transmission shaft 226 and the right transmission shaft 227 are respectively fixedly connected to the inner wall of the shaft hole of the adjustment gear 231; the front end of the adjustment gear 231 is meshed with the rear end of the adjustment rack 232, and the top of the adjustment rack 232 is fixedly connected to the bottom of the spring base 233; the spring base 233 is slidably connected to the bottom of the housing 1 through a circular slot, and the top of the spring base 233 is connected to the lower end of the energy storage spring 219; the front end side wall of the adjustment rack 232 is fixedly connected to the slider end of the guide rail assembly 234, and the upper and lower ends of the guide rail end of the guide rail assembly 234 are respectively fixedly connected to the bottom of the housing 1 and the inner bottom of the clutch assembly housing 2213.

[0056] Preferably, the upper end of the energy storage spring 219 is rotatably connected to the energy storage crankshaft 218, and the lower end of the energy storage spring 219 is rotatably connected to the spring base 233 through a hinge seat.

[0057] When the device is working, energy storage is required before closing the switch. The energy storage motor 211 of the energy storage component 21 of the self-regulating energy storage component 2 is started to drive the first gear 213 and the pulley 221 of the clutch component 22 to rotate. At this time, the electromagnet 2211 is kept in a contracted state, so the left hub 228 and the right hub 229 do not rotate. The first gear 213 is driven by the second gear 214, the first energy storage shaft 215 and the one-way chain component 216 in sequence, so that the second energy storage shaft 217 rotates. The energy storage crankshafts 218 at both ends of the second energy storage shaft 217 rotate upward accordingly, the energy storage spring 219 is stretched, and the energy storage cam 2110 on the second energy storage shaft 217 also rotates accordingly. Until after rotating half a circle, the convex shaft 2111 on the energy storage cam 2110 touches the end of the energy storage stop block 2113 and cannot rotate any further, and the energy storage stops. When closing the switch, the closing coil 5 is started to push the lower end of the closing flip piece 2114, driving the closing flip shaft 2112 and the energy storage stop block 2113 to rotate downward, and the convex shaft 2111 is separated from the energy storage stop block 2113. The second energy storage shaft 217 without limit rotates under the contraction of the energy storage spring 219, driving the energy storage cam 2110 to rotate. The energy storage cam 2110 drives the cam end of the self-regulating opening component 3 to rotate, so that the crank end of the self-regulating opening component 3 drives the external contact to lift upward to close the switch. After the speed measuring component 4 measures the rotational speed of the rotating shaft end of the self-regulating opening component 3, the closing speed can be indirectly obtained. If the closing speed is low, the electromagnet 2211 is extended to drive the sliding bearing seat 224 to slide along the left bracket 222. The sliding bearing seat 224 drives the one-way bearing 225 and the left transmission shaft 226 to slide to the right, so that the distance between the left hub 228 and the right hub 229 is shortened, and the belt 2210 is squeezed. At this time, the pulley 221 is in transmission connection with the left hub 228 and the right hub 229. When energy storage is carried out next time, the energy storage motor 211 rotates to drive the pulley 221 to rotate, driving the left hub 228 and the right hub 229 to rotate through the belt 2210, so that the left transmission shaft 226 and the right transmission shaft 227 rotate. The left transmission shaft 226 and the right transmission shaft 227 drive the adjusting gear 231 of the energy storage spring adjusting component 23 to rotate, so that the adjusting rack 232 slides down along the guide rail component 234, driving the spring base 233 to move downward, so that the bottom of the energy storage spring 219 drops, so that the stretching amount increases and the elastic force becomes larger. After closing the switch again and measuring the speed, if the speed returns to normal, the electromagnet 2211 is contracted, so that the left hub 228 and the right hub 229 are separated from the belt 2210 again to complete calibration. The one-way bearing 225 makes the left transmission shaft 226 and the right transmission shaft 227 unable to rotate reversely, so that the spring base 233 is fixed. The rotational speed of the rotating shaft end of the self-regulating opening component 3 is indirectly measured through the speed measuring component 4, so as to measure the opening and closing speed. The structure is simple and convenient for measurement;By maintaining the control of the electromagnet 2211 over the transmission between the left hub 228 and the right hub 229 and the pulley 221, it is possible to directly use the energy storage motor to automatically calibrate the energy storage spring 219 when calibration is required, and automatically separate after calibration is completed, saving the cost of manual maintenance. Embodiment

[0058] Based on Embodiment 1, please refer to the attached drawings of the specification Figures 1-11 The self - regulating opening component 3 includes an opening component 31 and an opening spring adjusting component 32; the opening component 31 is installed inside the housing 1; the rotating shaft end of the opening component 31 is connected to the speed measuring component 4, the rotating shaft end of the opening component 31 is connected to the side walls of the first partition 7, the second partition 8, and the third partition 9, the baffle end of the opening component 31 is connected to the second energy storage shaft 217, and the spring end of the opening component 31 is connected to the movable end of the opening spring adjusting component 32; the movable end of the opening spring adjusting component 32 is connected to the side walls of the first partition 7, the second partition 8, and the third partition 9, and the fixed end of the opening spring adjusting component 32 is connected to the inner bottom of the housing 1.

[0059] The opening component 31 includes a crankshaft 311, a crank drive assembly 312, a crank cam 313, a first detent 314, an opening flip shaft 315, a second detent 316, a volute spring 317, a first baffle 318, a second baffle 319, and an opening flip piece 3110; the side wall of the crankshaft 311 is rotatably connected to the side walls of the first partition 7, the second partition 8, and the third partition 9 and the right inner wall of the housing 1 in sequence from left to right; the side wall of the crankshaft 311 is rotatably connected to the upper ends of three groups of crank drive assemblies 312, the spring end of the crank drive assembly 312 is connected to the movable end of the opening spring adjustment assembly 32, and the end of the crank drive assembly 312 is connected to an external contact; the middle end of the crankshaft 311 is fixedly connected to the inner end of the crank cam 313, and the crank cam 313 is located directly behind the energy storage cam 2110; the right side wall of the crankshaft 311 is fixedly connected to the inner end of the second detent 316; the side wall of the opening flip shaft 315 is rotatably connected to the left inner wall of the housing 1, the side walls of the first partition 7, the second partition 8, the third partition 9, and the right inner wall of the housing 1 in sequence from left to right, and the right side wall of the opening flip shaft 315 is fixedly connected to the inner end of the first detent 314; the inner and outer ends of the volute spring 317 are fixedly connected to the left side wall of the third partition 9 and the right side wall of the first detent 314 respectively; the right side wall of the second energy storage shaft 217 is rotatably connected to the inner ends of the first baffle 318 and the second baffle 319, and the inner ends of the first baffle 318 and the second baffle 319 are fixedly connected; the upper end of the first baffle 318 is in contact connection with the outer end of the first detent 314, and the lower end of the second baffle 319 is in contact connection with the outer end of the second detent 316; the first detent 314, the second detent 316, the first baffle 318, and the second baffle 319 are located in the same vertical plane; the left side wall of the opening flip shaft 315 is fixedly connected to the bottom of the opening flip piece 3110, and the front end of the opening flip piece 3110 is directly above the output end of the opening coil 6.

[0060] The opening spring adjustment assembly 32 includes an electric push rod 321, a bushing 322, a spring support rod 323, a support rod chute 324, and a limit block 325; the inner bottom of the housing 1 is fixedly connected to the bottom of the electric push rod 321; the output end of the electric push rod 321 is fixedly connected to the bottom of the bushing 322; the inner wall of the bushing 322 is fixedly connected to the middle end of the spring support rod 323; support rod chutes 324 are provided on the side walls of the first partition 7, the second partition 8, the third partition 9, and the right side wall of the housing 1, and the side wall of the spring support rod 323 is slidably connected to the inner wall of the support rod chute 324; the left and right ends of the spring support rod 323 are fixedly connected to the inner side walls of the limit blocks 325, and the inner ends of the left and right limit blocks 325 are respectively in contact with the left side wall of the first partition 7 and the right side wall of the housing 1.

[0061] When the device is working, when closing the switch, the energy storage cam 2110 drives the crank cam 313 of the opening and closing assembly 31 to rotate downward, the crankshaft 311 drives the upper end of the crank transmission assembly 312 to rotate downward, so that the end of the crank transmission assembly 312 drives the external contact to close; at the same time, the crankshaft 311 drives the second detent 316 to rotate downward, and the outer end of the second detent 316 slides along the rear end of the second baffle 319 to the lower end of the second baffle 319. The first detent 314 swings downward under the action of the scroll spring, and the outer end of the first detent 314 slides along the arc surface at the upper end of the first baffle 318 to the rear end of the first baffle 318, resisting the rear end of the first baffle 318, so that the first baffle 318 cannot rotate downward, and the outer end of the second detent 316 cannot slide from the bottom of the second baffle 319 back to the rear end of the second baffle 319, so that the crankshaft 311 is stuck and the closing is completed; when opening the switch is needed, the opening coil 6 starts to lift the front end of the opening and flipping piece 3110, driving the opening and flipping shaft 315 to rotate, thereby driving the first detent 314 to rotate back, and the first detent 314 is separated from the first baffle 318; at this time, the second detent 316 moves, and the crank transmission assembly 312 folds under the action of the contraction of its own spring end. The upper end of the crank transmission assembly 312 rotates and resets along the crankshaft 311, and the end of the crank transmission assembly 312 descends to drive the external contact to open; at this time, the rotation speed of the crankshaft 311 is measured to obtain the opening speed. When the opening speed is low, the electric push rod 321 of the opening spring adjustment assembly 32 is started, and the output end of the electric push rod 321 drives the bushing 322 to move upward, thereby driving the spring support rod 323 to move upward along the support rod chute 324, so that the spring end of the crank transmission assembly 312 is stretched, increasing the spring tension; by automatically testing and adjusting the spring length of the crank transmission assembly 312, the opening speed can be automatically adjusted, and the springs of the crank transmission assembly 312 are connected in series through the spring support rod 323, and the tension can be adjusted simultaneously, making the force more uniform and saving the labor maintenance cost. Embodiment

[0062] On the basis of Embodiment 2, please refer to the attached drawings of the specification Figures 1-11 The speed measurement assembly 4 includes a speed measurement runner 41, a reflective sheet 42 and a sensor 43; a speed measurement runner 41 is fixedly connected to the left side wall of the crankshaft 311, and a reflective sheet 42 is fixedly connected to the left side wall of the speed measurement runner 41; two groups of sensors 43 are fixedly connected to the upper end of the right side wall of the first partition 7, and the sensors 43 are located on the rotation path of the reflective sheet 42.

[0063] Preferably, the two groups of sensors 43 are arranged along the circumferential direction of the speed measurement runner 41, and the included angle between the connecting lines of the two groups of sensors 43 and the center of the speed measurement runner 41 is a right angle.

[0064] When the device is working, each time the switch is closed or opened, the crankshaft 311 will rotate, driving the speed measurement runner 41 to rotate back and forth. At this time, the reflecting piece 42 passes through the two groups of sensors 43 in turn, records the passing time to obtain the rotational speed of the rotating shaft during closing and opening, and thus obtains the closing and opening speeds. The closing and opening speeds are indirectly measured by the time when the reflecting piece 42 passes through the sensor 43, and the device structure is simpler and easier to maintain. Embodiment

[0065] Based on Embodiment 3, please refer to the attached Figures 1-11 , a method of using a vacuum circuit breaker capable of monitoring the closing and opening speeds, comprising the following steps:

[0066] Step 1: Start the energy storage motor 211 of the energy storage component 21 of the self-regulating energy storage component 2, driving the first gear 213 and the pulley 221 of the clutch component 22 to rotate. At this time, keep the electromagnet 2211 in a contracted state, so the left hub 228 and the right hub 229 do not rotate. The first gear 213 is driven through the second gear 214, the first energy storage shaft 215 and the one-way chain component 216 in sequence, causing the second energy storage shaft 217 to rotate. The energy storage crankshafts 218 at both ends of the second energy storage shaft 217 rotate upward accordingly, the energy storage spring 219 is stretched, and the energy storage cam 2110 on the second energy storage shaft 217 also rotates accordingly. Until after rotating half a circle, the convex shaft 2111 on the energy storage cam 2110 touches the end of the energy storage stop block 2113 and cannot rotate further, and the energy storage stops. When closing the switch, the closing coil 5 starts to push the lower end of the closing flip piece 2114, driving the closing flip shaft 2112 and the energy storage stop block 2113 to rotate downward, and the convex shaft 2111 and the energy storage stop block 2113 are separated. The second energy storage shaft 217 without limitation rotates under the contraction of the energy storage spring 219, driving the energy storage cam 2110 to rotate. The energy storage cam 2110 drives the cam end of the self-regulating opening component 3 to rotate, so that the crank end of the self-regulating opening component 3 drives the external contact to lift, and the switch is closed. After the speed measurement component 4 measures the rotation speed of the rotating shaft end of the self-regulating opening component 3, the closing speed can be indirectly obtained. If the closing speed is low, keep the electromagnet 2211 extended, driving the sliding bearing seat 224 to slide along the left bracket 222. The sliding bearing seat 224 drives the one-way bearing 225 and the left transmission shaft 226 to slide to the right, shortening the distance between the left hub 228 and the right hub 229, and the belt 2210 is squeezed. At this time, the pulley 221 is in transmission connection with the left hub 228 and the right hub 229. When energy storage is carried out next time, the energy storage motor 211 rotates to drive the pulley 221 to rotate, driving the left hub 228 and the right hub 229 to rotate through the belt 2210, causing the left transmission shaft 226 and the right transmission shaft 227 to rotate. The left transmission shaft 226 and the right transmission shaft 227 drive the adjusting gear 231 of the energy storage spring adjusting component 23 to rotate, so that the adjusting rack 232 slides down along the guide rail component 234, driving the spring base 233 to move downward, lowering the bottom of the energy storage spring 219, so that the stretching amount increases and the elastic force becomes larger. After closing the switch again and measuring the speed, if the speed returns to normal, keep the electromagnet 2211 contracted, so that the left hub 228 and the right hub 229 are separated from the belt 2210 again, and the calibration is completed. The one-way bearing 225 makes the left transmission shaft 226 and the right transmission shaft 227 unable to rotate in the reverse direction, so that the spring base 233 is fixed.

[0067] Step 2: When closing the switch, the energy storage cam 2110 drives the crank cam 313 of the opening / closing assembly 31 to rotate downward, and the crankshaft 311 drives the upper end of the crank transmission assembly 312 to rotate downward, so that the end of the crank transmission assembly 312 drives the external contact to close; at the same time, the crankshaft 311 drives the second detent 316 to rotate downward, and the outer end of the second detent 316 slides along the rear end of the second baffle 319 to the lower end of the second baffle 319. The first detent 314 swings downward under the action of the volute spring, and the outer end of the first detent 314 slides along the arc surface at the upper end of the first baffle 318 to the rear end of the first baffle 318, pressing against the rear end of the first baffle 318, so that the first baffle 318 cannot flip downward, and the outer end of the second detent 316 cannot slide from the bottom of the second baffle 319 back to the rear end of the second baffle 319 either, causing the crankshaft 311 to be stuck and completing the closing; when opening the switch is required, the opening coil 6 starts to lift the front end of the opening / closing flip piece 3110, driving the opening / closing rotating shaft 315 to rotate, thereby driving the first detent 314 to rotate back, and the first detent 314 is separated from the first baffle 318; at this time, the second detent 316 is movable, and the crank transmission assembly 312 folds under the action of the contraction of its own spring end. The upper end of the crank transmission assembly 312 rotates and resets along the crankshaft 311, and the end of the crank transmission assembly 312 descends to drive the external contact to open; at this time, the rotation speed of the crankshaft 311 is measured to obtain the opening speed. When the opening speed is low, the electric push rod 321 of the opening spring adjustment assembly 32 is started, and the output end of the electric push rod 321 drives the bushing 322 to move upward, thereby driving the spring support rod 323 to move upward along the support rod chute 324, so that the spring end of the crank transmission assembly 312 is stretched to increase the spring tension.

[0068] Step 3: Each time the switch is closed and opened, the crankshaft 311 will rotate, driving the speed measurement runner 41 to rotate back and forth. At this time, the reflective sheet 42 passes through the two groups of sensors 43 in sequence, records the passing time to obtain the rotation speed of the rotating shaft during closing and opening, and thus obtains the closing and opening speeds.

[0069] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vacuum circuit breaker capable of monitoring opening and closing speeds, comprising a housing (1), characterized in that: The inner wall of the housing (1) is fixedly connected in sequence from left to right to the side walls of a first partition (7), a second partition (8) and a third partition (9) for supporting each component; An automatically adjustable energy storage component (2) for energy storage and for automatically adjusting the closing speed is installed inside the housing (1). The clutch end of the automatically adjustable energy storage component (2) is connected to the bottom of the housing (1), and the rotating shaft end of the automatically adjustable energy storage component (2) is connected to the side walls of the second partition (8) and the third partition (9); An automatically adjustable opening component (3) for opening and for automatically adjusting the opening speed is installed inside the housing (1). The rotating shaft end and the spring support end of the automatically adjustable opening component (3) are connected to the side walls of the first partition (7), the second partition (8) and the third partition (9); The rotating shaft end of the automatically adjustable opening component (3) is connected to the movable end of a speed measuring component (4) for measuring opening and closing speeds, and the fixed end of the speed measuring component (4) is connected to the side wall of the first partition (7); The lower end of the right side wall of the second partition (8) is fixedly connected to the side wall of a closing coil (5), and the upper end of the left side wall of the first partition (7) is fixedly connected to the side wall of an opening coil (6); The automatically adjustable energy storage component (2) includes an energy storage component (21), a clutch component (22), and an energy storage spring adjustment component (23); the energy storage component (21) is located inside the housing (1), and the rotating shaft end of the energy storage component (21) is connected to the side walls of the second partition (8) and the third partition (9), and the driving end of the energy storage component (21) is connected to the input end of the clutch component (22); the bottom of the housing (1) is connected to the fixed end of the clutch component (22); an energy storage spring adjustment component (23) is installed inside the clutch component (22), and the top of the energy storage spring adjustment component (23) is connected to the bottom of the housing (1); The energy storage spring adjustment component (23) includes an adjustment gear (231), an adjustment rack (232), a spring base (233) and a guide rail assembly (234); the side walls of the left transmission shaft (226) and the right transmission shaft (227) of the clutch component (22) are respectively fixedly connected to the inner wall of the shaft hole of the adjustment gear (231); the front end of the adjustment gear (231) is meshed and connected to the rear end of the adjustment rack (232), and the top of the adjustment rack (232) is fixedly connected to the bottom of the spring base (233); the spring base (233) is slidably connected to the bottom of the housing (1) through a circular slot hole, and the top of the spring base (233) is connected to the lower end of an energy storage spring (219); the front side wall of the adjustment rack (232) is fixedly connected to the slider end of the guide rail assembly (234), and the upper and lower ends of the guide rail end of the guide rail assembly (234) are respectively fixedly connected to the bottom of the housing (1) and the inner bottom of the clutch component housing (2213); The automatically adjustable opening component (3) includes an opening component (31) and an opening spring adjustment component (32); The opening spring adjusting assembly (32) includes an electric push rod (321), a bushing (322), a spring support rod (323), a support rod chute (324), and a limit block (325); the inner bottom of the housing (1) is fixedly connected to the bottom of the electric push rod (321); the output end of the electric push rod (321) is fixedly connected to the bottom of the bushing (322); the inner wall of the bushing (322) is fixedly connected to the middle end of the spring support rod (323); support rod chutes (324) are provided on the side walls of the first partition (7), the second partition (8), the third partition (9), and the right side wall of the housing (1), and the side wall of the spring support rod (323) is slidably connected to the inner wall of the support rod chute (324); the left and right ends of the spring support rod (323) are fixedly connected to the inner side walls of the limit blocks (325), and the inner ends of the left and right limit blocks (325) are respectively in contact connection with the left side wall of the first partition (7) and the right side wall of the housing (1); The speed measurement assembly (4) includes a speed measurement runner (41), a reflective sheet (42), and a sensor (43); a speed measurement runner (41) is fixedly connected to the left side wall of the crankshaft (311) of the opening assembly (31), and a reflective sheet (42) is fixedly connected to the left side wall of the speed measurement runner (41); two groups of sensors (43) are fixedly connected to the upper end of the right side wall of the first partition (7), and the sensors (43) are located on the rotation path of the reflective sheet (42).

2. The vacuum circuit breaker capable of monitoring the opening and closing speeds according to claim 1, wherein The energy storage assembly (21) comprises an energy storage motor (211), a reduction gear housing (212), a first gear (213), a second gear (214), a first energy storage shaft (215), a one-way chain assembly (216), a second energy storage shaft (217), an energy storage crankshaft (218), an energy storage spring (219), an energy storage cam (2110), a cam shaft (2111), a closing flip shaft (2112), an energy storage block (2113) and a closing flip sheet (2114); the lower end of the right side wall of the second partition plate (8) is fixedly connected to the left side wall of the reduction gear housing (212); the right side wall of the reduction gear housing (212) is fixedly connected to the An energy storage motor (211) is provided, wherein the driving end of the energy storage motor (211) passes through a reduction box housing (212) and is rotationally connected to the side wall of a second partition plate (8), the driving end side wall of the energy storage motor (211) is fixedly connected to the inner wall of an axial hole of a first gear (213), and the driving end side wall of the energy storage motor (211) is connected to the input end of a clutch assembly (22); the first gear (213) and the second gear (214) are both located inside the reduction box housing (212), the top of the first gear (213) is meshedly connected to the bottom of the second gear (214), the inner wall of the axial hole of the second gear (214) is fixedly connected to the side wall of a first energy storage shaft (215) The first energy storage shaft (215) is connected to the side walls of the second partition (8) and the third partition (9) in rotation; the left and right ends of the first energy storage shaft (215) are respectively connected to the side walls of the second partition (8) and the third partition (9); the first energy storage shaft (215) and the second energy storage shaft (217) are connected in transmission via a one-way chain assembly (216); the left and right end side walls of the second energy storage shaft (217) are respectively connected to the side walls of the second partition (8) and the third partition (9); the left end side wall of the second energy storage shaft (217) is connected to the baffle end of the self-adjusting opening brake assembly (3); the left and right ends of the second energy storage shaft (217) are fixedly connected to an energy storage crankshaft (218), and the outer end of the energy storage crankshaft (218) is connected to the upper end of the energy storage spring (219). The energy storage spring (219) is connected to the movable end of the energy storage spring adjustment assembly (23); the middle end of the second energy storage shaft (217) is fixedly connected to the inner end of the energy storage cam (2110), and the left side wall of the energy storage cam (2110) is fixedly connected to the right end of the convex shaft (2111); the left and right ends of the closing flip shaft (2112) are rotatably connected to the front ends of the side walls of the second partition plate (8) and the third partition plate (9), respectively, the left end side wall of the closing flip shaft (2112) is fixedly connected to the inner end of the energy storage block (2113), and the front end side wall of the energy storage block (2113) is fixedly connected to the rear end side wall of the closing flip plate (2114).

3. The vacuum circuit breaker capable of monitoring the opening and closing speeds according to claim 2, characterized in that, The clutch assembly (22) includes a pulley (221), a left bracket (222), a right bracket (223), a sliding bearing seat (224), a one-way bearing (225), a left drive shaft (226), a right drive shaft (227), a left hub (228), a right hub (229), a belt (2210), a holding electromagnet (2211), an auxiliary support seat (2212) and a clutch assembly housing (2213); the bottom of the housing (1) is fixedly connected to the top of the clutch assembly housing (2213); the left and right ends of the inner bottom of the clutch assembly housing (2213) are respectively fixedly connected to the bottoms of the left bracket (222) and the right bracket (223); a holding electromagnet (2211) is fixedly connected to the left side wall of the clutch assembly housing (2213), and the output end of the holding electromagnet (2211) passes through the clutch assembly housing (2213) and is fixedly connected to the left end of the sliding bearing seat (224), and the side wall of the sliding bearing seat (224) is in sliding contact with the inner wall of the left bracket (222); the left end of the left drive shaft (226) is rotatably connected to the inner wall of the sliding bearing seat (224) through a one-way bearing (225); the right end of the left drive shaft (226) is fixedly connected to the left side wall of the left hub (228); the left end of the right drive shaft (227) is fixedly connected to the right side wall of the right hub (229), and the right end of the right drive shaft (227) is rotatably connected to the inner wall of the right bracket (223) through a one-way bearing (225); the inner end inner wall of the left hub (228) is in sliding contact with the inner end side wall of the right hub (229); the side wall of the drive end of the energy storage motor (211) is fixedly connected to the inner wall of the shaft hole of the pulley (221); the upper left and right side walls of the belt (2210) are in contact connection with the inner end side wall of the pulley (221), and the lower left and right side walls of the belt (2210) are respectively in contact connection with the inner end side walls of the left hub (228) and the right hub (229); the side walls of the left drive shaft (226) and the right drive shaft (227) are respectively rotatably connected to the upper ends of one or more groups of auxiliary support seats (2212), and the bottoms of the auxiliary support seats (2212) are fixedly connected to the inner bottom of the clutch assembly housing (2213); the side walls of the left drive shaft (226) and the right drive shaft (227) are both fixedly connected to the gear end of the energy storage spring adjustment assembly (23).

4. A vacuum circuit breaker capable of monitoring the opening and closing speeds as claimed in claim 3, wherein, The upper end of the energy storage spring (219) is rotatably connected to the energy storage crankshaft (218), and the lower end of the energy storage spring (219) is rotatably connected to the spring base (233) through a hinge seat.

5. A vacuum circuit breaker capable of monitoring the opening and closing speeds, as claimed in claim 4, wherein Inside the housing (1), a trip component (31) is installed; the rotating shaft end of the trip component (31) is connected to the speed measurement component (4), the rotating shaft end of the trip component (31) is connected to the side walls of the first partition (7), the second partition (8), and the third partition (9), the baffle end of the trip component (31) is connected to the second energy storage shaft (217), and the spring end of the trip component (31) is connected to the movable end of the trip spring adjustment component (32); the movable end of the trip spring adjustment component (32) is connected to the side walls of the first partition (7), the second partition (8), and the third partition (9), and the fixed end of the trip spring adjustment component (32) is connected to the inner bottom of the housing (1).

6. The vacuum circuit breaker capable of monitoring the opening and closing speeds according to claim 5, wherein, The trip component (31) includes a crankshaft (311), a crank drive component (312), a crank cam (313), a first pawl (314), a trip turning shaft (315), a second pawl (316), a volute spring (317), a first baffle (318), a second baffle (319), and a trip turning piece (3110); the side wall of the crankshaft (311) is rotatably connected to the side walls of the first partition (7), the second partition (8), the third partition (9), and the right inner wall of the housing (1) in sequence from left to right; the side wall of the crankshaft (311) is rotatably connected to the upper ends of three groups of crank drive components (312), the spring end of the crank drive component (312) is connected to the movable end of the trip spring adjustment component (32), and the end of the crank drive component (312) is connected to an external contact; the middle end of the crankshaft (311) is fixedly connected to the inner end of the crank cam (313), and the crank cam (313) is located directly behind the energy storage cam (2110); the right side wall of the crankshaft (311) is fixedly connected to the inner end of the second pawl (316); the side wall of the trip turning shaft (315) is rotatably connected to the left inner wall of the housing (1), the side walls of the first partition (7), the second partition (8), the third partition (9), and the right inner wall of the housing (1) in sequence from left to right, and the right side wall of the trip turning shaft (315) is fixedly connected to the inner end of the first pawl (314); the inner and outer ends of the volute spring (317) are fixedly connected to the left side wall of the third partition (9) and the right side wall of the first pawl (314) respectively; the right side wall of the second energy storage shaft (217) is rotatably connected to the inner ends of the first baffle (318) and the second baffle (319), and the inner ends of the first baffle (318) and the second baffle (319) are fixedly connected; the upper end of the first baffle (318) is in contact connection with the outer end of the first pawl (314), and the lower end of the second baffle (319) is in contact connection with the outer end of the second pawl (316); the first pawl (314), the second pawl (316), the first baffle (318), and the second baffle (319) are located in the same vertical plane; the left side wall of the trip turning shaft (315) is fixedly connected to the bottom of the trip turning piece (3110), and the front end of the trip turning piece (3110) is directly above the output end of the trip coil (6).

7. A method for using a vacuum circuit breaker capable of monitoring the opening and closing speeds as described in claim 6, characterized in that, It includes the following steps: Step 1: Start the energy storage motor (211) of the energy storage component (21) of the self-regulating energy storage component (2), driving the first gear (213) and the pulley (221) of the clutch component (22) to rotate. At this time, keep the electromagnet (2211) in a contracted state, so the left hub (228) and the right hub (229) do not rotate; the first gear (213) is transmitted through the second gear (214), the first energy storage shaft (215) and the one-way chain component (216) in sequence, causing the second energy storage shaft (217) to rotate; the energy storage crankshafts (218) at both ends of the second energy storage shaft (217) rotate upward accordingly, the energy storage spring (219) is stretched, and the energy storage cam (2110) on the second energy storage shaft (217) also rotates accordingly. Until after rotating half a circle, the convex shaft (2111) on the energy storage cam (2110) touches the end of the energy storage stop block (2113) and cannot continue to rotate, and the energy storage stops; when closing the switch, the closing coil (5) starts to push the lower end of the closing flip piece (2114), driving the closing flip shaft (2112) and the energy storage stop block (2113) to rotate downward, the convex shaft (2111) and the energy storage stop block (2113) are separated, and the second energy storage shaft (217) without limit rotates under the contraction of the energy storage spring (219), driving the energy storage cam (2110) to rotate, and the energy storage cam (2110) drives the cam end of the self-regulating opening component (3) to rotate, so that the crank end of the self-regulating opening component (3) drives the external contact to lift upward for closing the switch; the speed measuring component (4) measures the rotational speed of the rotating shaft end of the self-regulating opening component (3), thereby indirectly obtaining the closing speed; if the closing speed is low, keep the electromagnet (2211) extended, driving the sliding bearing seat (224) to slide along the left bracket (222), the sliding bearing seat (224) drives the one-way bearing (225) and the left transmission shaft (226) to slide to the right, shortening the distance between the left hub (228) and the right hub (229), and the belt (2210) is squeezed. At this time, the pulley (221) is in transmission connection with the left hub (228) and the right hub (229); when storing energy next time, the energy storage motor (211) rotates to drive the pulley (221) to rotate, driving the left hub (228) and the right hub (229) to rotate through the belt (2210), causing the left transmission shaft (226) and the right transmission shaft (227) to rotate, and the left transmission shaft (226) and the right transmission shaft (227) drive the adjusting gear (231) of the energy storage spring adjusting component (23) to rotate, so that the adjusting rack (232) slides down along the guide rail component (234), driving the spring base (233) to move downward, lowering the bottom of the energy storage spring (219), thereby increasing the stretching amount and the elastic force;After reclosing and measuring the speed, if the speed returns to normal, keep the electromagnet (2211) contracted, so that the left wheel hub (228) and the right wheel hub (229) are disengaged from the belt (2210) again to complete the calibration. The one-way bearing (225) prevents the left drive shaft (226) and the right drive shaft (227) from rotating in the reverse direction, thus fixing the spring base (233). Step 2: When closing the switch, the energy storage cam (2110) drives the crank cam (313) of the opening component (31) to rotate downward. The crankshaft (311) drives the upper end of the crank transmission component (312) to rotate downward, so that the end of the crank transmission component (312) drives the external contact to close. At the same time, the crankshaft (311) drives the second detent (316) to rotate downward. The outer end of the second detent (316) slides along the rear end of the second baffle (319) to the lower end of the second baffle (319). The first detent (314) swings downward under the action of the volute spring. The outer end of the first detent (314) slides along the arc surface at the upper end of the first baffle (318) to the rear end of the first baffle (318), resisting the rear end of the first baffle (318), so that the first baffle (318) cannot be turned downward, and the outer end of the second detent (316) cannot slide from the bottom of the second baffle (319) back to the rear end of the second baffle (319) either, so that the crankshaft (311) is stuck and the closing is completed. When opening the switch is needed, the opening coil (6) starts to lift the front end of the opening flip piece (3110), driving the opening flip shaft (315) to rotate, so as to drive the first detent (314) to rotate back. The first detent (314) and the first baffle (318) are separated. At this time, the second detent (316) moves. The crank transmission component (312) folds under the action of the contraction of its own spring end. The upper end of the crank transmission component (312) rotates and resets along the crankshaft (311). The end of the crank transmission component (312) descends to drive the external contact to open. At this time, the rotation speed of the crankshaft (311) is measured to obtain the opening speed. When the opening speed is low, the electric push rod (321) of the opening spring adjustment component (32) is started. The output end of the electric push rod (321) drives the bushing (322) to move upward, so as to drive the spring support rod (323) to move upward along the support rod chute (324), so that the spring end of the crank transmission component (312) is stretched and the spring tension is increased. Step 3: Every time the switch is closed and opened, the crankshaft (311) will rotate, driving the speed measurement runner (41) to rotate back and forth. At this time, the reflective sheet (42) passes through the two groups of sensors (43) in turn, records the passing time to obtain the rotation speed of the rotating shaft during closing and opening, and thus obtains the closing and opening speeds.

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