CN217361445U

CN217361445U - Manual switching-on and switching-off device of rapid permanent magnet switch

Info

Publication number: CN217361445U
Application number: CN202220606403.0U
Authority: CN
Inventors: 李佳; 钟锦汉; 王雷
Original assignee: Suzhou Clou MGE Electric Co Ltd
Current assignee: Suzhou Clou MGE Electric Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-09-02
Anticipated expiration: 2032-03-18

Abstract

The manual switching-on and switching-off device comprises a shell, wherein three permanent magnet mechanisms are arranged in the shell, welding seats are arranged above the three permanent magnet mechanisms, the upper side and the lower side of the tops of the three welding seats are respectively provided with a first waist-shaped hole and a second vertical waist-shaped hole which are parallel to each other, connecting plates are arranged in the welding seats, the top ends of the connecting plates can slide along the length direction of the first waist-shaped hole, the bottom ends of the connecting plates can slide along the length direction of the second waist-shaped hole, and one ends of the connecting plates are connected with one end of each permanent magnet mechanism; the top end of each connecting plate is connected with a driving rod, and the driving rods are driven by a manual closing mechanism and a manual opening shaft which are positioned above the shell to move left and right respectively. According to the manual switching-on and switching-off device, switching-on and switching-off operations can be carried out by a manual driving device, and the stroke of the movable iron core of the manual switching-on mechanism is matched with the stroke actually required by switching-on of the permanent magnetic mechanism by adjusting the length of the screw rod and the joint among the three permanent magnetic mechanisms, and the synchronism of the three permanent magnetic mechanisms is consistent during switching-on.

Description

Manual switching-on and switching-off device of rapid permanent magnet switch

Technical Field

The utility model relates to a high tension switchgear technical field especially relates to a manual switching on/off device of quick permanent magnetism switch.

Background

The circuit breaker is one of the most widely used and important core devices in the power transmission and distribution system, and the safety and reliability of the operation of the circuit breaker are critical to the power system. With the rapid development of national economy and electric power industry and the promotion of the starting and urbanization process of national key engineering projects, the circuit breaker with high technological content and good reliability is urgently needed.

As one kind of circuit breaker, the fast on-off permanent magnet switch has the characteristics of short on-off time, high failure removal speed, high product reliability and the like, and adopts a direct-acting transmission mode of an arc extinguish chamber and a mechanism, and each phase is assembled with one permanent magnet mechanism. For the closing operation of the switch in the market of the type of switch, the permanent magnet mechanism is driven to act by the support of a power supply and a controller to realize the opening and closing operation, once a circuit is powered off and overhauled or a fault occurs in a control box, the electric opening and closing operation cannot be realized, so that the power circuit cannot normally run, and great loss is caused to a power system and users. Therefore, it is of great significance to design a switching device with manual speed to match with such a fast permanent magnet switch, and in addition, due to installation or size errors, the stroke required by the switching-on of the three permanent magnet mechanisms is inconsistent with the stroke driven by the manual switching-on mechanism, or the three permanent magnet mechanisms cannot be switched on simultaneously, so that line faults are easily caused.

Disclosure of Invention

The utility model provides a manual switching-on and switching-off device of quick permanent magnetism switch can be carried out the switching-on and switching-off by hand, and can guarantee that the stroke of manual switching-on mechanism drive permanent magnetic mechanism movable iron core matches with the actual required stroke of permanent magnetic mechanism combined floodgate to and the synchronism of three permanent magnetic mechanism is unanimous when closing floodgate.

The manual switching-on and switching-off device of the rapid permanent magnet switch comprises a shell, wherein three permanent magnet mechanisms are arranged in the shell, welding seats are arranged above the three permanent magnet mechanisms, the upper side and the lower side of the tops of the three welding seats are respectively provided with a first waist-shaped hole and a second vertical waist-shaped hole which are parallel to each other, connecting plates are arranged in the welding seats, the top ends of the connecting plates can slide along the length direction of the first waist-shaped hole, and the bottom ends of the connecting plates can slide along the length direction of the second waist-shaped hole and are connected with one end of each permanent magnet mechanism; the top end of each connecting plate is connected with a driving rod, and the driving rods are driven to move left and right by a manual closing mechanism and a manual opening shaft which are positioned above the shell respectively so as to enable the moving iron core and the static iron core of the three permanent magnet mechanisms to be separated and combined.

Preferably, the driving rod comprises three joints, the three joints are respectively and correspondingly connected with the top ends of the connecting plates in the welding seats, screw rods are arranged between every two of the three joints, and two ends of each screw rod are in adjustable connection with the joints through threads.

Preferably, one end of the joint is provided with a raised stud, and the end part of the screw rod is provided with a screw hole matched with the stud.

Preferably, the periphery of the stud is coaxially provided with a nut and an elastic cushion.

Preferably, the top of the welding seat is relatively provided with two support plates, the first waist-shaped holes are oppositely formed in the side edges of the two support plates, two ends of a first pin shaft are connected in the first waist-shaped holes in a sliding mode, and the middle of the first pin shaft is rotatably connected with the joint and the top end of the connecting plate.

Preferably, the second waist shape hole is also seted up relatively two the extension board side, two sliding connection has second round pin axle both ends in the second waist shape hole, second round pin axle middle part is rotated and is connected link board one end and connector one end, the connector other end is connected permanent magnetic mechanism moves the iron core.

Preferably, rolling sleeves are arranged between two ends of the first pin shaft and two ends of the first waist-shaped hole and/or between two ends of the second pin shaft and the second waist-shaped hole.

Preferably, the manual brake separating shaft is rotatably connected with the middle welding seat, the middle part of the manual brake separating shaft is connected with one side of a first shifting block, and the first shifting block is located below the second pin shaft and can be in contact with the second pin shaft.

Preferably, the manual closing mechanism comprises a closing energy storage shaft, the closing energy storage shaft can drive a second shifting block located on one side of the closing energy storage shaft to rotate, and the other end of the second shifting block is rotatably connected with a joint located on the rightmost side through a third pin shaft.

Preferably, one end of the manual opening shaft is connected with a manual opening handle, and one end of the closing energy storage shaft is connected with a manual closing handle.

The beneficial effect of this disclosure does:

1. the driving rod can be driven by a manual closing mechanism and a manual opening shaft, and the manual driving device can be used for opening and closing.

2. The movable iron core and the static iron core of the three permanent magnetic mechanisms can be separated or combined by a joint, a screw rod and a connecting plate in a transmission connection mode and a driving screw rod and the joint, the two ends of the screw rod are in adjustable connection with the joint through threads, the length of the screw rod and the joint between the three permanent magnetic mechanisms can be adjusted, the stroke of the movable iron core of each connecting plate driving permanent magnetic mechanism is adjusted, the stroke of the movable iron core of the manual closing mechanism driving permanent magnetic mechanism is matched with the stroke actually required by closing of the permanent magnetic mechanism, and the synchronism of the three permanent magnetic mechanisms is consistent during closing.

Drawings

Fig. 1 is a schematic structural diagram of a manual switching device of a fast permanent magnet switch according to the present disclosure;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is an enlarged view of the structure at C in FIG. 1;

fig. 5 is a schematic front view of a manual switching device of a fast permanent magnet switch according to the present disclosure;

fig. 6 is an enlarged schematic view of the structure at D in fig. 5.

In the figure: 1. a vacuum arc-extinguishing chamber pole column; 2. a housing; 3. a permanent magnet mechanism; 4. welding a base; 41. a support plate; 5. a joint; 51. a stud; 6. a screw; 61. a screw hole; 7. a manual brake separating shaft; 8. a first waist-shaped aperture; 9. a second waist-shaped hole; 10. a manual closing mechanism; 11. a nut; 12. a spring pad; 13. a connector; 141. A first pin shaft; 142. a second pin shaft; 143. a third pin shaft; 15. rolling; 16. connecting plates; 17. a copper sleeve; 18. mounting a plate; 19. a first shifting block; 20. a manual closing handle; 21. a manual brake-separating handle; 22. Closing an energy storage shaft; 221. a second shifting block; 23. a drive rod.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Referring to fig. 1 to 6, the present embodiment provides a manual switching device of a fast permanent magnet switch, including a housing 2, three permanent magnet mechanisms 3 disposed inside the housing 2, the permanent magnet mechanisms 3 including a movable iron core and a stationary iron core that can be separated or combined, a vacuum interrupter pole 1 disposed below the permanent magnet mechanisms 3 and below the housing 2, and welding bases 4 disposed above the three permanent magnet mechanisms 3, wherein the welding bases 4 are detachably connected to the housing 2 through nuts.

The upper side and the lower side of the tops of the three welding seats 4 are respectively provided with a first waist-shaped hole 8 and a second vertical waist-shaped hole 9 which are parallel to each other, connecting plates 16 are arranged in the welding seats 4, the top ends of the connecting plates 16 can slide along the length direction of the first waist-shaped hole 8, the bottom ends of the connecting plates can slide along the length direction of the second waist-shaped hole 9, and the connecting plates are connected with one end of the permanent magnet mechanism 3;

the top end of each connecting plate 16 is connected with a driving rod 23, and the driving rods 23 are driven to move left and right by a manual closing mechanism 10 and a manual opening shaft 7 which are positioned above the shell 2 respectively so as to enable the moving iron cores and the static iron cores of the three permanent magnet mechanisms 3 to be separated and combined.

Specifically, two support plates 41 are arranged at the top of the welding seat 4 relatively, first kidney-shaped holes 8 are arranged at the side edges of the two support plates 41 relatively, two ends of a first pin shaft 141 are connected in the two first kidney-shaped holes 8 in a sliding manner, the middle of the first pin shaft 141 is rotatably connected with a joint 5 and the top end of a connecting plate 16, the joint 5 is rotatably connected with the top end of the connecting plate 16 through the first pin shaft 141, second kidney-shaped holes 9 are also arranged at the side edges of the two support plates 41 relatively, two ends of a second pin shaft 142 are connected in the two second kidney-shaped holes 9 in a sliding manner, the middle of the second pin shaft 142 is rotatably connected with the bottom end of the connecting plate 16 and one end of a connector 13, the other end of the connector 13 and a movable iron core of the permanent magnetic mechanism 3 are also in adjustable connection through threads, the connection between the connector 5 and a screw rod 6 is similar, the position height of the movable iron core of the three permanent magnetic mechanisms 3 relative to the bottom end of the connecting plate 16 can be adjusted in a manner of adjusting the threaded screwing length, so as to solve the problems of unmatched stroke between the permanent magnetic mechanism 3 and the manual closing mechanism 10 and three-phase synchronous and different closing in periods of different in closing And the resulting problems. The bottom end of the connecting plate 16 is connected with the movable iron core of the permanent magnet mechanism 3 through a second pin 142 and the connector 13.

The driving rod 23 comprises three joints 5, the three joints 5 are respectively connected with the top ends of connecting plates 16 in three welding seats 4 correspondingly, screw rods 6 are arranged between every two three joints 5, two ends of each screw rod 6 are adjustably connected with the joints 5 through threads, concretely, one end of each joint 5 is provided with a raised stud 51, a screw hole 61 matched with the stud 51 is formed in the end part of each screw rod 6, the studs 51 and the screw holes 61 are installed and matched, the length of the studs 51 screwed into the screw holes 61 is changed, the length of the joints 5 and the studs 51 can be adjusted, nuts 11 and elastic pads 12 are coaxially arranged on the peripheries of the studs 51, one ends of the screw rods 6 are compressed through the nuts 11, the screws 5 can be effectively prevented from spinning, the elastic pads 12 are arranged between the nuts 11 and the screw rods 6, and the effect of locking the nuts 11 is achieved.

A manual closing mechanism 10 and a manual opening shaft 7 are further arranged above the shell 2 and are respectively used for driving the driving rod 23 to move left and right, the driving rod 23 moves left and right, and the left and right movement is converted into the up and down movement through the matching of the connecting plate 16, the first waist-shaped hole 8, the second waist-shaped hole 9, the first pin 141 and the second pin 142, so that the connecting plate 16 drives the moving iron core and the static iron core of the three permanent magnet mechanisms 3 to be separated or combined.

In this embodiment, the manual closing mechanism 10 includes a closing energy storage shaft 22, the closing energy storage shaft 22 can drive the second shifting block 221 located on one side of the closing energy storage shaft to rotate, the other end of the second shifting block 221 is rotatably connected to the joint 5 located on the rightmost side through the third pin 143, one end of the closing energy storage shaft 22 is connected to the manual closing handle 20, the turning handle is rotated, the closing energy storage shaft 22 drives the second shifting block 221 to swing, so that the joint 5 and the screw 6 can be driven to move left and right, the joint of the third pin 143 and the joint 5 is a vertical long hole, the positions of the screw 6 and the joint 5 are usually limited, a space is left for the swing of the second shifting block 221 during driving, in this embodiment, the closing energy storage shaft 22 drives the joint 5 and the screw 6 to move right, so that the moving iron core and the static iron core of the permanent magnet mechanism 3 are combined. The rollers 15 are arranged between the two ends of the first pin 141 and the two ends of the first kidney-shaped hole 8 and/or between the two ends of the second pin 142 and the second kidney-shaped hole 9, and the rollers 15 can prevent the first pin 141 and the first kidney-shaped hole 8 and the second pin 142 and the second kidney-shaped hole 9 from contacting with each other, so that a protection effect is achieved.

The manual brake separating shaft 7 is rotatably connected with the middle welding seat 4 through the mounting plate 18 and the copper sleeve 17, the middle part of the manual brake separating shaft is connected with one side of the first shifting block 19, and the first shifting block 19 is located below the second pin shaft 142 and can contact the second pin shaft 142. One end of the manual brake separating shaft 7 is further connected with a manual brake separating handle 21, the manual brake separating shaft 7 is rotated by pulling the manual brake separating handle 21, the first shifting block 19 is driven to rotate upwards, the second pin shaft 142 is pushed to move upwards, the second pin shaft 142 drives the connecting plate 16 to swing leftwards, the connecting head 13 is driven to move upwards, and the moving iron core and the static iron core of the permanent magnet mechanism 3 are separated.

The work flow of the method comprises the following steps: when the manual switching-on and switching-off device of the rapid permanent magnet switch needs to be switched on manually, the manual switching-on handle 20 is pulled manually, the switching-on energy storage shaft 22 drives the manual switching-on mechanism 10 to store energy and then switch on, the switching-on energy storage mechanism is similar to that in the prior art, the switching-on energy storage shaft 22 drives the second shifting block 221 to rotate clockwise, so that the screw 6 and the joint 5 are driven to move rightwards, the connecting plate 16 drives the movable iron core of the permanent magnet mechanism 3 to move downwards, the permanent magnet mechanism 3 is kept after being switched on, the screw 6 and the joint 5 are in threaded connection, the length of the screw 6 and the joint 5 between the three permanent magnet mechanisms 3 can be adjusted by adjusting the threaded screwing-in length, the length also affects the switching-on stroke (combination of the movable iron core and the static iron core) of the permanent magnet mechanisms 3, when the stroke of the movable iron core driven by the manual switching-on mechanism 10 is not matched with the actually required stroke of the permanent magnet mechanism 3, or when the three permanent magnet mechanisms 3 cannot be switched on simultaneously due to installation errors and the like (three-phase synchronous inconsistency), the length of the screw 6 and the joint 5 can be adjusted, so that the manual closing mechanism 10 and the closing stroke of the manual closing mechanism 10 are matched with the closing stroke of the permanent magnetic mechanism 3, and the three phases of the three permanent magnetic mechanisms 3 are consistent in the same period when the three permanent magnetic mechanisms are closed.

When the manual switching-on and switching-off device of the rapid permanent magnet switch needs to perform manual switching-off, the manual switching-off handle 21 is pulled anticlockwise to drive the manual switching-off shaft 7 to rotate, the first shifting block 19 on the manual switching-off shaft 7 pushes the second pin shaft 142 to move upwards, the moving iron core and the static iron core of the permanent magnet mechanism 3 are separated, and the switch is switched off.

Although embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The manual switching-on and switching-off device of the rapid permanent magnet switch is characterized by comprising a shell (2), three permanent magnet mechanisms (3) are arranged inside the shell (2), welding seats (4) are arranged above the three permanent magnet mechanisms (3), parallel first waist-shaped holes (8) and vertical second waist-shaped holes (9) are formed in the upper side and the lower side of the tops of the three welding seats (4), connecting plates (16) are arranged in the welding seats (4), the top ends of the connecting plates (16) can slide along the length direction of the first waist-shaped holes (8), the bottom ends of the connecting plates (16) can slide along the length direction of the second waist-shaped holes (9), and one ends of the permanent magnet mechanisms (3) are connected;

the top end of each connecting plate (16) is connected with a driving rod (23), and the driving rods (23) are driven to move left and right by a manual closing mechanism (10) and a manual opening shaft (7) which are positioned above the shell (2) respectively so as to enable the moving iron core and the static iron core of the three permanent magnet mechanisms (3) to be separated and combined.

2. The manual switching-on and switching-off device of the rapid permanent magnet switch according to claim 1, wherein the driving rod (23) comprises three joints (5), the three joints (5) are respectively and correspondingly connected with the top ends of the connecting plates (16) in the three welding seats (4), a screw (6) is arranged between every two three joints (5), and two ends of the screw (6) are adjustably connected with the joints (5) through threads.

3. The manual switching device of a fast permanent magnet switch according to claim 2, wherein one end of the joint (5) is provided with a protruding stud (51), and the end of the screw (6) is provided with a screw hole (61) matched with the stud (51).

4. The manual switching device of a rapid permanent magnet switch according to claim 3, characterized in that a nut (11) and a spring washer (12) are coaxially arranged on the periphery of the stud (51).

5. The manual switching-on and switching-off device of the fast permanent magnet switch according to claim 2, characterized in that two support plates (41) are oppositely arranged on the top of the welding seat (4), the first kidney-shaped hole (8) is oppositely arranged on the side edges of the two support plates (41), two ends of a first pin shaft (141) are slidably connected in the two first kidney-shaped holes (8), and the middle of the first pin shaft (141) is rotatably connected with the joint (5) and the top end of the connecting plate (16).

6. The manual switching device of a fast permanent magnet switch according to claim 5, wherein the second kidney-shaped holes (9) are also arranged on the side of the two support plates (41) in a relatively opened manner, two ends of a second pin shaft (142) are slidably connected in the two second kidney-shaped holes (9), the middle of the second pin shaft (142) is rotatably connected with one end of the connecting plate (16) and one end of the connector (13), and the other end of the connector (13) is connected with the movable iron core of the permanent magnet mechanism (3).

7. The manual switching device of a fast permanent magnet switch according to claim 6, wherein a roller (15) is arranged between both ends of the first pin (141) and both ends of the first kidney-shaped hole (8) and/or between both ends of the second pin (142) and the second kidney-shaped hole (9).

8. The manual switching device of a fast permanent magnet switch according to claim 6, wherein the manual switching shaft (7) is rotatably connected to the middle welding seat (4), a first shifting block (19) is connected to the middle of the manual switching shaft, and the first shifting block (19) is located below the second pin shaft (142) and can contact the second pin shaft (142).

9. The manual switching device of the fast permanent magnet switch according to claim 8, wherein the manual switching mechanism (10) comprises a switching energy storage shaft (22), the switching energy storage shaft (22) can drive a second shifting block (221) located on one side of the switching energy storage shaft to rotate, and the other end of the second shifting block (221) is rotatably connected to the joint (5) located on the rightmost side through a third pin shaft (143).

10. The manual switching device of the fast permanent magnet switch according to claim 9, wherein one end of the manual switching shaft (7) is connected with a manual switching handle (21), and one end of the switching energy storage shaft (22) is connected with a manual switching handle (20).