A fully sealed spring operating mechanism and method for ring network cabinet

Abstract

The present invention belongs to the technical field of equipment for ring network cabinets, and in particular to a fully sealed spring operating mechanism and method for ring network cabinets. In view of the problem that the spring force value in the existing spring operating mechanism will gradually decrease with the use time, the following scheme is proposed, including a mounting frame, the mounting frame is provided with a crank arm on the outside, the mounting frame is fixedly connected to a fixed platform on the outside, a connecting seat is provided below the fixed platform, and the crank arm and the connecting seat are fixedly connected to a connecting shaft on the side away from the mounting frame. A fully sealed spring operating mechanism and method for ring network cabinets disclosed in the present invention can pre-tension the energy storage spring on the spring operating mechanism, reduce the influence of the deformation stress generated by the energy storage spring that has been stretched for a long time, so that the energy storage spring can always maintain the spring force value required for closing and opening, ensure the use function of the operating mechanism, reduce the influence of the deformation of the energy storage spring on the success rate of opening, and improve safety.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment for ring main unit, and in particular to a fully sealed spring operating mechanism and method for a ring main unit. Background Art

[0002] Circuit breakers are important equipment in medium-voltage switchgear. The spring operating mechanism of the circuit breaker uses an ingenious four-bar linkage mechanism and a cam mechanism to match the spring force curve with the load characteristics of the vacuum switch to the greatest extent, so that the circuit breaker can open and close, carry short-circuit current and meet a series of characteristic parameters required for sufficient mechanical life. At the same time, it must also meet the specified operating force, operating specifications and anti-misoperation requirements.

[0003] During long-term use, the spring in the existing spring operating mechanism is in a state of stretching and storing energy for the operating mechanism for a long time, which causes the spring to often produce stress deformation in the tensile direction, causing the force value on the spring to gradually decrease. In severe cases, it may cause the gate to fail to open, posing a major safety hazard. Summary of the invention

[0004] The invention discloses a fully sealed spring operating mechanism and method for a ring main unit, aiming to solve the technical problem in the background technology that the spring force value of the existing spring operating mechanism gradually decreases with the use time.

[0005] The present invention provides a fully sealed spring operating mechanism for a ring network cabinet, comprising a mounting frame, a crank arm is arranged on the outside of the mounting frame, a fixed platform is fixedly connected to the outside of the mounting frame, a connecting seat is arranged below the fixed platform, and a connecting shaft is fixedly connected to the side of the crank arm and the connecting seat away from the mounting frame, a connecting plate is movably connected to the outside of the two connecting shafts, the same energy storage spring is fixedly connected to the opposite side of the two connecting plates, a pre-tensioning module is arranged on the fixed platform, a lubrication module is arranged on the two connecting shafts, and a large energy storage shaft is movably connected to the mounting frame, and the large energy storage shaft is movably connected to the side opposite to the crank arm;

[0006] The pretensioning module includes a screw rod, the bottom of which is movably connected to the upper side of the connecting seat, a ratchet is arranged outside the screw rod, a rack is arranged outside the ratchet, and the rack is clamped with the ratchet;

[0007] The lubrication module comprises a mounting seat, and oil-guiding cotton strips are arranged outside the mounting seat. One end of the two oil-guiding cotton strips is in contact with the bearing between the connecting shaft and the connecting plate, and the other end is fixedly connected to an oil bottle.

[0008] By providing a mounting frame, a crank arm, a connecting seat, a fixing platform, a connecting shaft, a connecting plate, an energy storage spring, a pre-tensioning module and a lubrication module, the device can pre-tension the energy storage spring on the spring operating mechanism using the pre-tensioning module, thereby reducing the influence of deformation stress generated by the energy storage spring that has been stretched for a long time, so that the energy storage spring can always maintain the spring force value required for closing and opening the switch, thereby ensuring the use function of the operating mechanism, reducing the influence of deformation of the energy storage spring on the success rate of opening the switch, and improving safety.

[0009] In a preferred solution, the bottom of the ratchet is movably connected to the upper side of the fixed platform, a rotating handle is provided on the outside of the screw rod, and the bottom of the rotating handle is fixedly connected to the upper side of the ratchet, a locking rod is provided on the outside of the ratchet, the bottom of the locking rod is slidably connected to the upper side of the fixed platform, and the outside of the locking rod is slidably connected to a guide buckle, the bottom of the guide buckle is fixedly connected to the upper side of the fixed platform, a power motor is provided on the mounting frame, the output end of the power motor is connected to gear one through a coupling, a one-way bearing is provided on the mounting frame, the outside of the one-way bearing is fixedly connected to gear two, the outside of the energy storage shaft is fixedly connected to a large gear, the large gear is meshed with gear two, and gear one is meshed with gear two; the outside of the rack is fixedly connected to the inner wall of the locking rod, a circular hole is provided on the fixed platform, the inner wall of the circular hole is rotatably connected to the outside of the screw rod through an external thread, and a reset button is fixedly connected to the side of the guide buckle away from the screw rod. The cam is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate

[0010] By providing a pre-tensioning module, the pre-tensioning module uses a lead screw and a locking rod to enable the device to quickly complete the lifting and lowering of the lead screw, and uses a rack and a ratchet to ensure that the lead screw can stably tension the energy storage spring while avoiding the lead screw from rotating due to the reaction force of the energy storage spring, thereby greatly improving the operating convenience of the operator.

[0011] In a preferred solution, a threaded groove is provided on one side of the two connecting shafts away from the mounting frame, and the inner wall of the threaded groove is rotatably connected to the outside of the mounting seat on the same side through an external thread, and the outside of the one-way bearing is fixedly connected to a connecting rod 2, and the end of the connecting rod 2 away from the one-way bearing is movably connected to the end of the connecting rod 1 away from the manual toggle plate; a notch is provided on one side of the two mounting seats away from the connecting shaft, and the inner wall of the notch is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to a transmission rod, and an annular groove is provided on one side of the mounting seat away from the connecting shaft, and a contact piece is fixedly connected to the outside of the energy storage shaft, and the outside of the contact piece contacts the outside of the shaft rod, and an indicator touch plate is fixedly connected to the outside of the energy storage shaft; the two mounting seats A movable frame is slidably connected in the annular groove, and a groove is opened on the outside of the movable frame. The inner wall of the groove is fixedly connected to the outside of the oil guide cotton strip on the same side, and the outside of the oil bottle is fixedly connected to the fixed frame, and the outside of the energy storage shaft is fixedly connected to a cam, and the cam is located on the outside of the mounting frame. A closing roller is fixedly connected to the side of the cam close to the mounting frame, and a shaft rod is movably connected to the mounting frame, and a closing latch is fixedly connected to the outside of the shaft rod, and the end of the closing latch away from the shaft rod contacts the outside of the closing roller; the ends of the two transmission rods away from the driving motor are fixedly connected to the outside of the fixed frame on the same side, and the fixed frame is located above the driving motor; the transmission rod is located on the outside of the movable frame, and the transmission rod is located on the side of the mounting seat away from the connecting shaft.

[0012] By providing a lubrication module, the lubrication module uses a driving motor and an oil bottle to allow the oil-guiding cotton strip to evenly apply the lubricating oil to the bearing between the connecting shaft and the connecting plate, thereby ensuring the smoothness of the bearing rotation, reducing the impact on the energy storage process of the energy storage spring, and lubricating the bearing, greatly reducing the wear at the connection and increasing the service life.

[0013] A fully sealed spring operating method for a ring main unit, using the fully sealed spring operating mechanism for a ring main unit as described above, comprises the following steps:

[0014] Step 1: Before storing energy in the energy storage spring, use a pre-tensioning module to pre-tension the energy storage spring so that the energy storage spring is in a stretched state to a certain extent. When performing electric energy storage, start the power motor, the power motor drives gear 1 to rotate, so that gear 1 drives gear 2, gear 2 drives the large gear to rotate, so that the large gear drives the energy storage shaft to rotate, and the crank arm on the energy storage shaft begins to stretch the energy storage spring during rotation. After the energy storage shaft rotates to the point where the contact piece on the energy storage shaft contacts the micro switch, the micro switch controls the power motor to close. At this time, the closing latch blocks the cam, the energy storage shaft no longer rotates, and the energy storage spring completes energy storage;

[0015] Step 2. When manual energy storage is used, the manual toggle plate is toggled back and forth. The manual toggle plate drives connecting rod one and connecting rod two to rotate back and forth at a certain angle. Under the action of the one-way bearing, gear two drives the large gear to rotate in one direction, so that the energy storage spring completes energy storage. In the process of the crank arm driving the energy storage spring to store energy through rotation, the lubrication module can be used to apply lubricating oil to the bearing between the connecting plate and the connecting shaft.

[0016] From the above, it can be seen that the fully sealed spring operating mechanism for a ring network cabinet provided by the present invention can pre-tension the energy storage spring on the spring operating mechanism, reduce the influence of deformation stress generated by the energy storage spring stretched for a long time, so that the energy storage spring can always maintain the spring force value required for closing and opening, ensure the use function of the operating mechanism, reduce the influence of deformation of the energy storage spring on the success rate of opening, and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a fully sealed spring operating mechanism for a ring main unit proposed by the present invention;

[0018] Figure 2 A schematic cross-sectional view of a fully sealed spring operating mechanism for a ring main unit proposed by the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of a fully sealed spring operating mechanism and a tensioning module for a ring main unit proposed by the present invention;

[0020] Figure 4 This is a schematic diagram of the locking ring structure of a fully sealed spring operating mechanism for a ring main unit proposed by the present invention;

[0021] Figure 5 A schematic diagram of the convex seat structure of a fully sealed spring operating mechanism for a ring main unit proposed by the present invention;

[0022] Figure 6 This is a structural schematic diagram of a lubrication module of a fully sealed spring operating mechanism for a ring main unit proposed by the present invention;

[0023] Figure 7 The present invention is a schematic diagram of the mounting base structure of a fully sealed spring operating mechanism for a ring main unit.

[0024] In the figure: 1, mounting frame; 2, crank arm; 3, connecting seat; 4, fixing table; 5, connecting shaft; 6, connecting plate; 7, energy storage spring; 8, pre-tensioning module; 801, screw rod; 802, ratchet; 803, locking rod; 804, guide buckle; 805, rack; 806, reset spring; 807, turning handle; 808, convex seat; 809, round shaft; 810, limit rod; 811, ring frame; 812, coil spring; 813, embedded frame; 814, latch; 815, limit spring; 9, lubrication module; 901, Thread groove; 902, mounting seat; 903, driving motor; 904, movable frame; 905, annular groove; 906, transmission rod; 907, fixed frame; 908, oil guide cotton strip; 909, oil bottle; 10, energy storage shaft; 11, contact piece; 12, power motor; 13, gear one; 14, gear two; 15, indicator touch plate; 16, micro switch; 17, large gear; 18, cam; 19, closing latch; 20, shaft; 21, manual toggle plate; 22, connecting rod one; 23, connecting rod two; 24, one-way bearing. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] A fully sealed spring operating mechanism for a ring network cabinet disclosed in the present invention is mainly used in a scenario where the spring force value of an existing spring operating mechanism gradually decreases with the use time.

[0027] Reference Figure 1-7 A fully sealed spring operating mechanism for a ring network cabinet comprises a mounting frame 1, a crank arm 2 is arranged on the outside of the mounting frame 1, a fixing platform 4 is connected to the outside of the mounting frame 1 by bolts, a connecting seat 3 is arranged below the fixing platform 4, and a connecting shaft 5 is connected to the crank arm 2 and the connecting seat 3 on the side away from the mounting frame 1 by bolts, and the outsides of the two connecting shafts 5 are rotatably connected to connecting plates 6 by bearings, and the opposite sides of the two connecting plates 6 are connected to the same energy storage spring 7 by bolts, a pre-tensioning module 8 is arranged on the fixing platform 4, and a lubrication module 9 is arranged on the two connecting shafts 5, and an energy storage shaft 10 is rotatably connected to the mounting frame 1 by a bearing, and the energy storage shaft 10 is rotatably connected to the crank arm 2 by a bearing;

[0028] The pre-tensioning module 8 includes a screw rod 801, the bottom of the screw rod 801 is rotatably connected to the upper side of the connecting seat 3 through a bearing, a ratchet 802 is arranged outside the screw rod 801, a rack 805 is arranged outside the ratchet 802, and the rack 805 is engaged with the ratchet 802;

[0029] The lubrication module 9 includes a mounting seat 902, and oil-guiding cotton strips 908 are arranged outside the mounting seat 902. One end of the two oil-guiding cotton strips 908 are in contact with the bearing between the connecting shaft 5 and the connecting plate 6, and the other end is connected to the oil bottle 909 by bolts.

[0030] Specifically, before storing energy in the energy storage spring 7, the pre-tensioning module 8 is used to pre-tension the energy storage spring 7, so that the energy storage spring 7 is in a stretched state to a certain extent. When the electric fixed platform 4 is storing energy, the power motor 12 is started, and the power motor 12 drives the gear 1 13 to rotate, so that the gear 1 13 drives the gear 2 14, and the gear 2 14 drives the large gear 17 to rotate, so that the large gear 17 drives the energy storage shaft 10 to rotate, and the crank arm 2 on the energy storage shaft 10 starts to stretch the energy storage spring 7 during the rotation. After the energy storage shaft 10 rotates to the point where the contact piece 11 on the energy storage shaft 10 contacts the micro switch 16, the micro switch 16 controls the power motor 12. Closed, at this time the closing latch 19 blocks the cam 18, the energy storage shaft 10 no longer rotates, and the energy storage spring 7 completes energy storage. In the process of the crank arm 2 driving the energy storage spring 7 to store energy by rotating, the lubrication module 9 can be used to apply lubricating oil to the bearing between the connecting plate 6 and the connecting shaft 5; the device can use the pre-tensioning module 8 to pre-tension the energy storage spring 7 on the spring operating mechanism, reduce the influence of the deformation stress of the energy storage spring 7 that has been stretched for a long time, so that the energy storage spring 7 can always maintain the spring force value required for closing and opening, ensure the use function of the operating mechanism, reduce the influence of the deformation of the energy storage spring 7 on the success rate of opening, and improve safety.

[0031] Reference Figure 3 , Figure 4 and Figure 5In a preferred embodiment, the bottom of the ratchet 802 is rotatably connected to the upper side of the fixed platform 4 through a bearing, a rotating handle 807 is provided on the outside of the screw rod 801, and the bottom of the rotating handle 807 is connected to the upper side of the ratchet 802 through a bolt, and a locking rod 803 is provided on the outside of the ratchet 802, and the bottom of the locking rod 803 is slidably connected to the upper side of the fixed platform 4, and the outside of the locking rod 803 is slidably connected to a guide buckle 804, and the bottom of the guide buckle 804 is connected to the upper side of the fixed platform 4 through a bolt, and a power motor 12 is provided on the mounting frame 1, and the output end of the power motor 12 is connected through a coupling. The mounting frame 1 is provided with a one-way bearing 24, the outside of the one-way bearing 24 is connected to the gear 2 14 by bolts, the outside of the energy storage shaft 10 is connected to the large gear 17 by bolts, the large gear 17 is meshed with the gear 2 14, and the gear 13 is meshed with the gear 2 14; the outside of the rack 805 is connected to the inner wall of the locking rod 803 by bolts, a circular hole is opened on the fixing platform 4, the inner wall of the circular hole is rotatably connected to the outside of the screw rod 801 by an external thread, and the side of the guide buckle 804 away from the screw rod 801 is connected to the reset spring 806 by bolts, and the reset spring 806 is away from the guide buckle 804. One end of the locking rod 804 is connected to the inner wall of the locking rod 803 by bolts, and the upper side of the fixing platform 4 is connected to a convex seat 808 by bolts, and a groove is provided on the convex seat 808, and a round shaft 809 is rotatably connected in the groove through a bearing, and a limit rod 810 is connected to the outside of the round shaft 809 by bolts, and a micro switch 16 is arranged on the outside of the power motor 12; the end of the limit rod 810 away from the convex seat 808 is slidably connected to a chimeric frame 813, and the bottom of the chimeric frame 813 is connected to the upper side of the fixing platform 4 by bolts, and fine holes are provided on the chimeric frame 813 and the limit rod 810, and a latch 814 is inserted in the fine hole, and the plug The outside of the pin 814 is connected to a limit spring 815 by bolts, and the end of the limit spring 815 away from the pin 814 is connected to the outside of the engaging frame 813 by bolts, and an annular frame 811 is arranged on the outside of the circular shaft 809, and the side of the annular frame 811 opposite to the convex seat 808 is connected by bolts, and the inner wall of the annular frame 811 is connected to a coil spring 812 by bolts, and the end of the coil spring 812 away from the annular frame 811 is connected to the outside of the circular shaft 809 by bolts, and the inner wall of the mounting frame 1 is rotatably connected to a manual toggle plate 21 through a bearing, and a connecting rod 22 is rotatably connected to the manual toggle plate 21 through a bearing.

[0032] Specifically, when the energy storage spring 7 is pre-tensioned, the elastic force of the limit spring 815 is overcome to pull the latch pin 814 out of the fitting frame 813. Under the torsion of the coil spring 812, the limit rod 810 is rotated out of the fitting frame 813, so that the limit rod 810 releases the limit on the locking rod 803, and the elastic force of the reset spring 806 is overcome to push the locking rod 803 in the direction of the limit rod 810, so that the rack 805 on the locking rod 803 releases the lock on the ratchet 802, and the rotating handle 807 is grasped and rotated to make the rotating handle 807 rotate. The movable handle 807 drives the ratchet 802 to rotate, and the ratchet 802 drives the screw rod 801 to rotate on the fixed platform 4, so that the screw rod 801 drives the connecting seat 3 to move upward, so that the connecting shaft 5 on the connecting seat 3 pulls the energy storage spring 7 upward, so that the energy storage spring 7 enters a pre-stretched state, and the locking rod 803 is released, the locking rod 803 is reset, the rack 805 and the ratchet 802 are re-engaged, the screw rod 801 no longer rotates, the limit rod 810 is pressed back into the embedded frame 813, and the pin 814 is reinserted into the embedded frame 813.

[0033] In specific application scenarios, the pre-tensioning module 8 is mainly suitable for the pre-tensioning link in the pre-tensioning process, that is, the pre-tensioning module 8 uses the screw rod 801 and the locking rod 803 to enable the device to quickly complete the lifting and lowering of the screw rod 801, and uses the rack 805 and the ratchet 802 to enable the screw rod 801 to stably tension the energy storage spring 7 while avoiding the screw rod 801 from rotating due to the reaction force of the energy storage spring 7, thereby greatly improving the operating convenience of the operator.

[0034] Reference Figure 6 and Figure 7In a preferred embodiment, a thread groove 901 is provided on one side of the two connecting shafts 5 away from the mounting frame 1, and the inner wall of the thread groove 901 is rotatably connected to the outside of the mounting seat 902 on the same side through an external thread, and the outside of the one-way bearing 24 is connected to the connecting rod 23 by bolts, and the end of the connecting rod 23 away from the one-way bearing 24 is rotatably connected to the end of the connecting rod 1 22 away from the manual toggle plate 21 through a bearing; a notch is provided on one side of the two mounting seats 902 away from the connecting shaft 5, and the inner wall of the notch is connected to the driving motor 903 by bolts, and the output end of the driving motor 903 is connected to the transmission rod 906 by bolts, and an annular groove 905 is provided on the side of the mounting seat 902 away from the connecting shaft 5, and the outside of the energy storage shaft 10 is connected to the contact piece 11 by bolts, and the outside of the contact piece 11 contacts the outside of the shaft rod 20, and the outside of the energy storage shaft 10 is connected to the indicating touch plate 15 by bolts; the two annular grooves 905 A movable frame 904 is slidably connected inside, and grooves are opened on the outside of the movable frame 904. The inner walls of the grooves are bolted to the outside of the oil-guiding cotton strip 908 on the same side, and the outside of the oil bottle 909 is bolted to the fixed frame 907, and the outside of the energy storage shaft 10 is bolted to the cam 18, which is located on the outside of the mounting frame 1. The side of the cam 18 close to the mounting frame 1 is bolted to a closing roller, and the mounting frame 1 is rotatably connected to a shaft rod 20 through a bearing, and the outside of the shaft rod 20 is bolted to a closing latch 19, and the end of the closing latch 19 away from the shaft rod 20 contacts the outside of the closing roller; the ends of the two transmission rods 906 away from the drive motor 903 are bolted to the outside of the fixed frame 907 on the same side, and the fixed frame 907 is located above the drive motor 903; the transmission rod 906 is located on the outside of the movable frame 904, and the transmission rod 906 is located on the side of the mounting seat 902 away from the connecting shaft 5.

[0035] Specifically, during the energy storage process of the energy storage spring 7, the connecting plate 6 will rotate on the connecting shaft 5, screwing the mounting seat 902 into the threaded groove 901 and fixing it, so that the end of the oil-guiding cotton strip 908 away from the oil bottle 909 can contact the bearing between the connecting shaft 5 and the connecting plate 6, start the drive motor 903, and the locking rod 803 drives the transmission rod 906 to rotate, so that the movable frame 904 can rotate on the mounting seat 902. While rotating, the lubricating oil in the oil bottle 909 will gradually infiltrate the oil-guiding cotton strip 908 and be conducted in the oil-guiding cotton strip 908, so that the movable frame 904 will apply the lubricating oil to the bearing between the connecting shaft 5 and the connecting plate 6.

[0036] In specific application scenarios, the lubrication module 9 is mainly suitable for the lubrication link in the lubrication process, that is, the lubrication module 9 uses the driving motor 903 and the oil bottle 909 to enable the oil-guiding cotton strip 908 to evenly apply the lubricating oil to the bearing between the connecting shaft 5 and the connecting plate 6, thereby ensuring the smoothness of the bearing rotation, reducing the impact on the energy storage process of the energy storage spring 7, and lubricating the bearing, which greatly reduces the wear on the connection and improves the service life.

[0037] A fully sealed spring operating method for a ring main unit, using the fully sealed spring operating mechanism for a ring main unit as described above, comprises the following steps:

[0038] Step 1: Before storing energy in the energy storage spring 7, use the pre-tensioning module 8 to pre-tension the energy storage spring 7, so that the energy storage spring 7 is in a stretched state to a certain extent. When performing electric energy storage, start the power motor 12, the power motor 12 drives the gear 1 13 to rotate, so that the gear 1 13 drives the gear 2 14, and the gear 2 14 drives the large gear 17 to rotate, so that the large gear 17 drives the energy storage shaft 10 to rotate, and the crank arm 2 on the energy storage shaft 10 starts to stretch the energy storage spring 7 during the rotation. After the energy storage shaft 10 rotates to the point where the contact piece 11 on the energy storage shaft 10 contacts the micro switch 16, the micro switch The switch 16 controls the power motor 12 to turn off. At this time, the closing latch 19 blocks the cam 18, the energy storage shaft 10 no longer rotates, and the energy storage spring 7 completes energy storage (when the energy storage spring 7 is pre-tensioned, the elastic force of the limit spring 815 is overcome to pull the latch 814 out of the fitting frame 813. Under the torsion of the coil spring 812, the limit rod 810 rotates out of the fitting frame 813, so that the limit rod 810 releases the limit on the locking rod 803, overcomes the elastic force of the reset spring 806 to push the locking rod 803 in the direction of the limit rod 810, so that the rack 805 on the locking rod 803 releases the lock on the ratchet 802. Grab the rotating handle 807 and rotate it, so that the rotating handle 807 drives the ratchet 802 to rotate, and the ratchet 802 drives the screw 801 to rotate on the fixed platform 4, so that the screw 801 drives the connecting seat 3 to move upward, so that the connecting shaft 5 on the connecting seat 3 pulls the energy storage spring 7 upward, so that the energy storage spring 7 enters a pre-stretched state, and the locking rod 803 is released, the locking rod 803 is reset, the rack 805 is re-engaged with the ratchet 802, the screw 801 does not rotate, the limit rod 810 is pressed back into the embedded frame 813, and the pin 814 is reinserted into the embedded frame 813, so that the energy storage spring 7 is in a certain degree of tension. When the electric fixed platform 4 is storing energy, the power motor 12 is started, and the power motor 12 drives the gear 1 13 to rotate, so that the gear 1 13 drives the gear 2 14, and the gear 2 14 drives the large gear 17 to rotate, so that the large gear 17 drives the energy storage shaft 10 to rotate, and the crank arm 2 on the energy storage shaft 10 starts to stretch the energy storage spring 7 during the rotation. After the energy storage shaft 10 rotates to the point where the contact piece 11 on the energy storage shaft 10 contacts the micro switch 16, the micro switch 16 controls the power motor 12 to turn off. At this time, the closing latch 19 blocks the cam 18, the energy storage shaft 10 no longer rotates, and the energy storage spring 7 completes energy storage);

[0039] Step 2: When manual energy storage is adopted, the manual toggle plate 21 is toggled back and forth, and the manual toggle plate 21 drives the connecting rod 1 22 to rotate the connecting rod 2 23 back and forth at a certain angle. Under the action of the one-way bearing 24, the gear 2 14 drives the large gear 17 to rotate in one direction, so that the energy storage spring 7 completes energy storage. In the process of the crank arm 2 driving the energy storage spring 7 to store energy by rotating, the lubrication module 9 can be used to apply lubricating oil to the bearing between the connecting plate 6 and the connecting shaft 5 (in the process of the energy storage spring 7 storing energy, the connecting plate 6 will be on the connecting shaft 5). Rotate, screw the mounting seat 902 into the threaded groove 901 and fix it, so that the end of the oil-conducting cotton strip 908 away from the oil bottle 909 can contact the bearing between the connecting shaft 5 and the connecting plate 6, start the driving motor 903, and the locking rod 803 drives the transmission rod 906 to rotate, so that the movable frame 904 can rotate on the mounting seat 902. While rotating, the lubricating oil in the oil bottle 909 will gradually infiltrate the oil-conducting cotton strip 908 and be transmitted in the oil-conducting cotton strip 908, so that the movable frame 904 will apply the lubricating oil to the bearing between the connecting shaft 5 and the connecting plate 6).

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully sealed spring operating mechanism for a ring main unit, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a crank arm (2) on the outside, a fixed platform (4) is fixedly connected to the outside of the mounting frame (1), a connecting seat (3) is provided below the fixed platform (4), and the crank arm (2) and the connecting seat (3) are fixedly connected to a connecting shaft (5) on the side away from the mounting frame (1), the two connecting shafts (5) are movably connected to the outside with a connecting plate (6), the two connecting plates (6) are fixedly connected to the same energy storage spring (7) on the opposite side, a pre-tensioning module (8) is provided on the fixed platform (4), a lubrication module (9) is provided on the two connecting shafts (5), and the mounting frame (1) is movably connected to a large energy storage shaft (10), and the large energy storage shaft (10) is movably connected to the side opposite to the crank arm (2); The pre-tensioning module (8) comprises a screw rod (801), the bottom of the screw rod (801) is movably connected to the upper side of the connecting seat (3), a ratchet (802) is arranged outside the screw rod (801), a rack (805) is arranged outside the ratchet (802), and the rack (805) is engaged with the ratchet (802); The lubrication module (9) comprises a mounting seat (902), and oil-guiding cotton strips (908) are arranged outside the mounting seat (902); one end of the two oil-guiding cotton strips (908) are in contact with the bearing between the connecting shaft (5) and the connecting plate (6), and the other end is fixedly connected to an oil bottle (909); The bottom of the ratchet (802) is movably connected to the upper side of the fixed platform (4); a rotating handle (807) is provided on the outside of the screw rod (801); the bottom of the rotating handle (807) is fixedly connected to the upper side of the ratchet (802); a locking rod (803) is provided on the outside of the ratchet (802); the bottom of the locking rod (803) is slidably connected to the upper side of the fixed platform (4); and a guide buckle (804) is slidably connected to the outside of the locking rod (803); the bottom of the guide buckle (804) is slidably connected to the upper side of the fixed platform (4). The upper side of the fixed platform (4) is fixedly connected, a power motor (12) is arranged on the mounting frame (1), the output end of the power motor (12) is connected to a gear 1 (13) via a coupling, a one-way bearing (24) is arranged on the mounting frame (1), the outside of the one-way bearing (24) is fixedly connected to a gear 2 (14), the outside of the energy storage shaft (10) is fixedly connected to a large gear (17), the large gear (17) is meshed with the gear 2 (14), and the gear 1 (13) is meshed with the gear 2 (14).

2. A fully sealed spring operating mechanism for a ring main unit according to claim 1, characterized in that: The outside of the rack (805) is fixedly connected to the inner wall of the locking rod (803); a circular hole is provided on the fixing platform (4); the inner wall of the circular hole is rotatably connected to the outside of the screw rod (801) via an external thread; a return spring (806) is fixedly connected to the side of the guide buckle (804) away from the screw rod (801); one end of the return spring (806) away from the guide buckle (804) is fixedly connected to the inner wall of the locking rod (803); a convex seat (808) is fixedly connected to the upper side of the fixing platform (4); a groove is provided on the convex seat (808); a round shaft (809) is movably connected in the groove; the outside of the round shaft (809) is fixedly connected to a limit rod (810); and a micro switch (16) is provided on the outside of the power motor (12).

3. A fully sealed spring operating mechanism for a ring main unit according to claim 2, characterized in that: The end of the limit rod (810) away from the convex seat (808) is slidably connected to a fitting frame (813), the bottom of the fitting frame (813) is fixedly connected to the upper side of the fixed platform (4), the fitting frame (813) and the limit rod (810) are both provided with fine holes, a latch (814) is inserted into the fine hole, the outside of the latch (814) is fixedly connected to a limit spring (815), and the end of the limit spring (815) away from the latch (814) is fixedly connected to the outside of the fitting frame (813). The circular shaft (809) is fixedly connected, and an annular frame (811) is arranged outside the circular shaft (809), the annular frame (811) is fixedly connected to the side opposite to the convex seat (808), the inner wall of the annular frame (811) is fixedly connected to a coil spring (812), one end of the coil spring (812) away from the annular frame (811) is fixedly connected to the outside of the circular shaft (809), the inner wall of the mounting frame (1) is movably connected to a manual toggle plate (21), and the manual toggle plate (21) is movably connected to a connecting rod 1 (22).

4. A fully sealed spring operating mechanism for a ring main unit according to claim 3, characterized in that: A threaded groove (901) is provided on one side of the two connecting shafts (5) away from the mounting frame (1); the inner wall of the threaded groove (901) is rotatably connected to the outside of the mounting seat (902) on the same side via an external thread; and a second connecting rod (23) is fixedly connected to the outside of the one-way bearing (24); an end of the second connecting rod (23) away from the one-way bearing (24) is movably connected to an end of the first connecting rod (22) away from the manual toggle plate (21).

5. A fully sealed spring operating mechanism for a ring main unit according to claim 4, characterized in that: The two mounting seats (902) are each provided with a notch on one side away from the connecting shaft (5), the inner wall of the notch is fixedly connected to a driving motor (903), the output end of the driving motor (903) is fixedly connected to a transmission rod (906), the mounting seats (902) are each provided with an annular groove (905) on one side away from the connecting shaft (5), the outside of the energy storage shaft (10) is fixedly connected to a contact piece (11), the outside of the contact piece (11) is in contact with the outside of the shaft rod (20), and the outside of the energy storage shaft (10) is fixedly connected to an indicating contact plate (15).

6. A fully sealed spring operating mechanism for a ring main unit according to claim 5, characterized in that: The two annular grooves (905) are slidably connected to a movable frame (904), the outside of the movable frame (904) is provided with a groove, the inner wall of the groove is fixedly connected to the outside of the oil guide cotton strip (908) on the same side, and the outside of the oil bottle (909) is fixedly connected to the fixed frame (907), the outside of the energy storage shaft (10) is fixedly connected to a cam (18), the cam (18) is located on the outside of the mounting frame (1), and the side of the cam (18) close to the mounting frame (1) is fixedly connected to a closing roller, the mounting frame (1) is movably connected to a shaft rod (20), the outside of the shaft rod (20) is fixedly connected to a closing latch (19), and the end of the closing latch (19) away from the shaft rod (20) contacts the outside of the closing roller.

7. A fully sealed spring operating mechanism for a ring main unit according to claim 6, characterized in that: One end of the two transmission rods (906) away from the driving motor (903) is fixedly connected to the outside of a fixing frame (907) on the same side, and the fixing frame (907) is located above the driving motor (903).

8. A fully sealed spring operating mechanism for a ring main unit according to claim 7, characterized in that: The transmission rod (906) is located outside the movable frame (904), and the transmission rod (906) is located on a side of the mounting seat (902) away from the connecting shaft (5).

9. A fully sealed spring operating method for a ring main unit, using the fully sealed spring operating mechanism for a ring main unit as claimed in claim 8, characterized in that: The steps include: Step 1: Before the energy storage spring (7) is charged, the energy storage spring (7) is pre-tensioned using a pre-tensioning module (8) so that the energy storage spring (7) is in a stretched state to a certain extent. When the electric energy storage is performed, the power motor (12) is started, and the power motor (12) drives the gear 1 (13) to rotate, so that the gear 1 (13) drives the gear 2 (14), and the gear 2 (14) drives the large gear (17) to rotate, so that the large gear (17) drives the gear 2 (14) to rotate. The kinetic energy storage shaft (10) rotates, and the crank arm (2) on the energy storage shaft (10) begins to stretch the energy storage spring (7) during the rotation. After the energy storage shaft (10) rotates until the contact piece (11) on the energy storage shaft (10) contacts the micro switch (16), the micro switch (16) controls the power motor (12) to turn off. At this time, the closing latch (19) blocks the cam (18), the energy storage shaft (10) no longer rotates, and the energy storage spring (7) completes energy storage. Step 2: When manual energy storage is adopted, the manual toggle plate (21) is toggled back and forth, and the manual toggle plate (21) drives the connecting rod 1 (22) to rotate the connecting rod 2 (23) back and forth at a certain angle. Under the action of the one-way bearing (24), the gear 2 (14) drives the large gear (17) to rotate in one direction, so that the energy storage spring (7) completes energy storage. In the process of the crank arm (2) driving the energy storage spring (7) to store energy by rotating, the lubrication module (9) can be used to apply lubricating oil to the bearing between the connecting plate (6) and the connecting shaft (5).

Images