CN109192602B - Spring permanent magnet switching on and switching off operation device - Google Patents

Spring permanent magnet switching on and switching off operation device Download PDF

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Publication number
CN109192602B
CN109192602B CN201811276457.XA CN201811276457A CN109192602B CN 109192602 B CN109192602 B CN 109192602B CN 201811276457 A CN201811276457 A CN 201811276457A CN 109192602 B CN109192602 B CN 109192602B
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Prior art keywords
switching
manual
spring
permanent magnet
closing
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CN201811276457.XA
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CN109192602A (en
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郝占林
赵永军
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BEIJING BKE ELECTRIC SYSTEMS Co Ltd
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BEIJING BKE ELECTRIC SYSTEMS Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements

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Abstract

The invention provides a spring permanent magnet switching-on and switching-off operation device which comprises a permanent magnet operation mechanism, a spring energy storage mechanism and a switching-on and switching-off operation mechanism, wherein the permanent magnet operation mechanism is arranged on the spring energy storage mechanism; the permanent magnet operating mechanism comprises a permanent magnet operating rod, a static end flange, a static yoke, a static iron core, a switching-on/off coil, a permanent magnet and a movable iron core; the spring energy storage mechanism comprises a manual energy storage shaft, a driven cam shaft, a closing spring, a large chain wheel and a small chain wheel; the switching-on/off operation mechanism comprises a switching-on/off driving rod, a spring driving seat, a manual switching-on connecting lever, a three-phase switching-on/off connecting rod, a manual switching-on cam, a manual switching-off shaft and two switching-off springs. The permanent magnet is adopted to keep the switch in a closing state, the movable iron core is driven by the manual closing cam to move to the closing keeping state during manual closing, and the closing spring is automatically separated from the chain wheel transmission system during electric closing, so that the required operation power is small; the manual brake is driven by a manual brake-separating cam, so that the operating force is small; and the integrated design is adopted, so that the transmission links are few, and the manufacturing cost is low.

Description

Spring permanent magnet switching on and switching off operation device
Technical Field
The invention belongs to the technical field of distribution equipment, and particularly relates to a spring permanent magnet switching-on and switching-off operation device.
Background
The permanent magnet vacuum circuit breaker with a manual closing function adopted by the existing overhead line of a power distribution network mainly comprises a manual spring mechanism and a monostable permanent magnet operating mechanism, when the circuit breaker is electrically closed, a magnetic field generated by a closing coil of the permanent magnet mechanism is superposed with a magnetic field of a permanent magnet, the circuit breaker is driven to be closed by electromagnetic force, and a closing crank arm of the spring mechanism is driven to rotate to enable a closing keeping component of the spring mechanism to act and enable a keeping device to be in a locking position, so that the circuit breaker of the mechanism simultaneously has two sets of closing keeping devices, namely a permanent magnet and a mechanical; when the manual switching-on and switching-off operation is carried out, the switching-on and switching-off of the circuit breaker are realized by a manual spring mechanism, the two sets of mechanisms are simultaneously arranged on a circuit breaker base, and the two sets of operating mechanisms are provided with respective switching-on and switching-off retaining devices. Under the influence of manufacturing errors, when the electric switching-on and switching-off operation is adopted for switching on, the contact is repeatedly kept at the switching-on position under the action of the manual spring mechanism and the monostable permanent magnet operating mechanism, when the switching-off is carried out, two sets of operating mechanisms need to be switched off simultaneously, the clamping stagnation points are many in the switching-off process, the blocking and pause in the switching-off process are easily caused, the contact of the breaker is stopped when the contact pressure is smaller than the rated contact pressure, the contact ablation caused by electric arc is increased, even the switching-off failure is caused, and the power grid accident is caused. The operating mechanism has the disadvantages of low reliability, complex structure of the opening mechanism and high processing and manufacturing cost.
Therefore, the integrated spring permanent magnet switching-on and switching-off operation device with a reasonable structure is researched and manufactured, the structure is simple, the manufacturing cost is low, and structural mechanical jamming generated in the switching-on and switching-off process of the two sets of retaining devices is avoided.
Disclosure of Invention
The invention aims to provide a spring permanent magnet switching-on and switching-off operation device, which solves the technical problems that structural mechanical jamming occurs in the switching-on and switching-off process of two sets of retaining devices in the prior art, so that the power grid accidents are caused by failure of switching on and switching off.
In order to achieve the purpose, the invention adopts the technical scheme that: the spring permanent magnet switching-on and switching-off operation device comprises a bracket, a permanent magnet operation mechanism, a spring energy storage mechanism and a switching-on and switching-off operation mechanism;
the permanent magnet operating mechanism comprises a permanent magnet operating rod, a static end flange and a static magnetic yoke, wherein a static iron core, a switching-on/off coil, a permanent magnet and a movable iron core are arranged in the static magnetic yoke, the static iron core and the movable iron core are positioned in the center of the static magnetic yoke side by side, the static magnetic yoke, the static iron core and the permanent magnet are all arranged on the same end surface of the static end flange, the static end flange is fixedly connected with the bracket, and the permanent magnet operating rod penetrates through center holes of the static end flange, the static iron core and the movable iron core and has freedom degree in the X direction;
the spring energy storage mechanism comprises a manual energy storage shaft, a driven cam shaft, a switching-on spring, a large chain wheel and a small chain wheel, wherein two ends of the manual energy storage shaft and two ends of the driven cam shaft are rotatably connected with the support;
the switching-on/off operation mechanism comprises a switching-on/off driving rod, a spring driving seat, a manual switching-on connecting lever, three pairs of three-phase switching-on/off connecting rods, a manual switching-on cam, a manual switching-off shaft and two switching-off springs, wherein the switching-on/off driving rod, the spring driving seat and the manual switching-on connecting lever are rotatably connected, one ends of the switching-on/off driving rod and the three-phase switching-on/off connecting rod are rotatably connected with the bracket, the other end of the three-phase switching-on/off connecting rod is rotatably connected with the bracket, the switching-on/off driving rod has freedom in the X direction, the three-phase switching-on/off connecting rod has freedom in the Y direction, two ends of the manual switching-off shaft are rotatably connected with the bracket, the manual switching-off cam is in keyed connection with the manual switching-on/off shaft, and one ends of the two switching-off springs are connected, the other end of the connecting rod is fixed on a box body of the circuit breaker;
the spring driving seat and the movable iron core are in threaded connection with the permanent magnet operating rod, and the manual closing cam key is connected to the driven cam shaft.
Further, the support includes the bottom plate, three set firmly in first backup pad and two parallels on the bottom plate set firmly in second backup pad on the bottom plate, quiet end flange is through four spliced poles and two the second backup pad is connected, spring drive seat manual switching-on connecting lever manual switching-on cam with manual separating brake cam all is located two between the second backup pad, driven camshaft manual energy storage axle with the both ends of manual separating brake axle are respectively with two the second backup pad rotates and is connected, be equipped with on the first backup pad and be used for making the switch closing and separating brake actuating lever has X to the rectangular hole of X to the degree of freedom and makes the three-phase closing and separating brake connecting rod has Y to the rectangular hole of Y to the degree of freedom.
Furthermore, the bottom plate is rectangular board, and three first backup pad is followed the length direction interval evenly distributed of bottom plate, the centre first backup pad is located two between the second backup pad.
Further, the closing spring is located at the outer side of the two second support plates.
Further, the driven camshaft and the manual energy storage shaft are respectively arranged on two sides of the first support plate in the middle.
Further, the manual brake separating shaft and the manual energy storage shaft are located on the same side.
Furthermore, the two opening springs are respectively arranged on two sides of the switch opening and closing driving rod.
The spring permanent magnet switching-on and switching-off operation device provided by the invention has the beneficial effects that: compared with the prior art, the spring permanent magnet switching-on and switching-off operation device is used for switching-on and switching-off operation of the power distribution network overhead line vacuum circuit breaker, only permanent magnet magnetic force is adopted to keep the switch in a switching-on state, a manual switching-on cam drives a movable iron core to move to a switching-on keeping state during manual switching-on, and a switching-on spring is automatically separated from a chain wheel transmission system during electric switching-on, so that the required operation power of the system is small; the manual and electric integrated design has small manufacturing error, and a manufacturer does not need to adjust the consistency of products; the manual brake is driven by a manual brake-separating cam, so that the operating force is small; the integrated design is adopted, the transmission links are few, the manufacturing cost is low, and the economic benefit is better.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic perspective view of a spring permanent magnet switching on/off operation device according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of the spring permanent magnet switching on/off operation device according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a permanent magnet operating mechanism of the spring permanent magnet switching on/off operating device shown in fig. 1;
fig. 4 is a schematic top view of the spring permanent magnet switching on/off operation device according to the embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along A-A of FIG. 4;
FIG. 6 is a schematic front view of the structure of FIG. 4;
FIG. 7 is a rear view of the structure of FIG. 4;
fig. 8 is a diagram of the action structure of the three-phase switching-on/off connecting rod when the circuit breaker is in a switching-on/off state and at the maximum energy storage position from left to right;
fig. 9 is a diagram of a positional relationship between a manual closing connecting lever and a manual closing cam in the closing and opening states of the circuit breaker and the maximum energy storage position from left to right;
FIG. 10 is a diagram showing a positional relationship between a closing spring and an opening spring in the closing and opening states of the circuit breaker;
FIG. 11 is a diagram illustrating a relationship between the position of a closing spring at the maximum position of the stored energy of the circuit breaker;
fig. 12 is a schematic structural view of the manual closing lever in fig. 1;
FIG. 13 is a schematic structural view of the driven camshaft of FIG. 1;
FIG. 14 is a schematic structural view of the switch opening/closing driving rod and the switch opening spring in FIG. 1;
fig. 15 shows the position relationship between the switch closing/opening drive rod and the opening spring when the circuit breaker is in the closing/opening state from top to bottom.
Wherein, in the figures, the respective reference numerals:
1-a permanent magnet operating rod; 2-a stationary end flange; 3-a static magnetic yoke; 4-a stationary iron core; 5, switching on and off a brake coil; 6-permanent magnet; 7-a movable iron core; 8-spring drive seat; 9-three-phase closing and opening connecting rod; 10-switch on-off driving rod; 11-a manual closing crank arm; 12-manual closing cam; 13-manual opening cam; 14-a manual energy storage shaft; 15-manual brake separating shaft; 16-a closing spring; 17-a first support plate; 18-a first pin; 19-a driven camshaft; 20-a second support plate; 21-large sprocket; 22-a small sprocket; 23-a base plate; a 24-X direction elongated hole; a 25-Y direction elongated hole; 26-connecting column; 27-a connector; 28-a second pin; 29-a third pin; 30-hanging spring shaft; 31-a switching-off spring; 32-three-phase closing and opening connecting rod connecting holes; 33-spring drive socket attachment holes.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 7, the spring permanent magnet switching on/off operation device of the present invention will now be described. The spring permanent magnet switching-on and switching-off operation device comprises a bracket, a permanent magnet operation mechanism, a spring energy storage mechanism and a switching-on and switching-off operation mechanism;
the permanent magnet operating mechanism comprises a permanent magnet operating rod 1, a static end flange 2 and a static yoke 3, wherein a static iron core 4, a switching-on and switching-off coil 5, a permanent magnet 6 and a movable iron core 7 are arranged in the static yoke 3, the static iron core 4 and the movable iron core 7 are positioned in the center of the static yoke 3 side by side, the static yoke 3, the static iron core 4 and the permanent magnet 6 are all arranged on the same end surface of the static end flange 2, the static end flange 2 is fixedly connected with a support, and the permanent magnet operating rod 1 penetrates through center holes of the static end flange 2, the static iron core 4 and the movable iron core 7 and has the degree of;
the spring energy storage mechanism comprises a manual energy storage shaft 14, a driven cam shaft 19, a closing spring 16, a large chain wheel 21 and a small chain wheel 22, wherein two ends of the manual energy storage shaft 14 and two ends of the driven cam shaft 19 are rotatably connected with the support, the small chain wheel 22 and the large chain wheel 21 are respectively connected with one end of the manual energy storage shaft 14 and one end of the driven cam shaft 19 in a corresponding key mode, the small chain wheel 22 and the large chain wheel 21 are connected in a transmission mode, one end of the closing spring 16 is connected with the support, and the other end of the closing spring is connected with the driven cam;
the switching-on/off operation mechanism comprises a switching-on/off driving rod 10, a spring driving seat 8, a manual switching-on connecting lever 11, three pairs of three-phase switching-on/off connecting rods 9, a manual switching-on cam 12, a manual switching-off cam 13, a manual switching-off shaft 15 and two switching-off springs 31, wherein the switching-on/off driving rod 10, the spring driving seat 8 and the manual switching-on connecting lever 11 are rotatably connected through a first pin 18, one ends of the switching-on/off driving rod 10 and the three-phase switching-on/off connecting rod 9 are rotatably connected with the bracket through a second pin 28 (or a positioning pin), the other end of the three-phase switching-on/off connecting rod 9 is rotatably connected with the bracket through a third pin 29, the switching-on/off driving rod 10 has the degree of freedom in the X direction under the action of the second pin 28 (or the positioning pin), the three-phase switching-on/off connecting rod 9 has the degree of freedom in the Y direction, the manual brake-separating cam 13 is connected with the manual brake-separating shaft 15 in a key mode, one ends of two brake-separating springs 31 are connected with a hanging spring shaft 30 arranged on the switch brake-separating driving rod 10, and the other ends of the two brake-separating springs are fixed on a box body of the circuit breaker;
the spring driving seat 8 and the movable iron core 7 are both in threaded connection with the permanent magnet operating rod 1, and the manual closing cam 12 is in key connection with the driven cam shaft 19.
The working process of the spring permanent magnet switching on and off mechanism provided by the invention is as follows: referring to fig. 1, 8 to 15, the switch opening and closing drive rod 10 drives the three-phase opening and closing connecting rod 9 to open and close the vacuum circuit breaker, and the manual closing cam 12 is connected with the manual energy storage shaft 14 through a key and chain wheel system; the manual closing cam 12 is connected with a closing spring 16, during manual operation, a manual energy storage shaft 14 is pulled in a reciprocating mode to enable the closing spring 16 to store energy, the closing cam 12 is driven to rotate after the stored energy is in place, a manual closing connecting lever 11 is driven, a movable iron core 7 linked with the manual closing connecting lever 11 moves towards the left side of the attached drawing 1 and the attached drawing 4, a switch closing and opening driving rod 10 is driven to move in the same direction at the same time to enable the vacuum circuit breaker to be closed, the vacuum circuit breaker is kept in a closing state by the magnetic force of a permanent magnet 6 after the vacuum circuit breaker is in place, the manual closing cam 12 only drives the manual closing connecting lever 11 in a closing process, and after the vacuum circuit breaker is in place, the manual closing cam 12; the manual brake-separating cam 13 is connected with the manual brake-separating shaft 15 through a key, after the manual brake-separating shaft 15 is pulled, the manual brake-separating cam 13 acts to drive the switch brake-separating driving rod 10 to move towards the right side along the attached drawing 1, the switch brake-separating driving rod 10 simultaneously drives the movable iron core 7 to move towards the right side, so that an air gap is generated between the movable iron core and the static iron core 4 of the permanent magnet operating mechanism, at the moment, the permanent magnet retention force is smaller than the counter force of the contact spring and the brake-separating spring 31 of the vacuum circuit breaker, and the vacuum circuit breaker is separated under the action of.
When the vacuum circuit breaker is switched on, current in a preset direction is conducted in the switching-on and switching-off coil 5, under the action of the current, the static iron core 4 generates a magnetic field in the same direction as the permanent magnet 6, the movable iron core 7 generates a magnetic field in the opposite direction to the permanent magnet 6, the magnetic attraction force borne by the right end of the movable iron core 7 is reduced, when the electromagnetic resultant force is larger than the attraction force of the right end of the movable iron core 7 and the counter force of the spring 16, the movable iron core 7 moves towards the left side to drive the spring driving seat 8, and the switching-on and switching-off driving rod 10 linked with the spring driving seat 8 moves towards the same direction to enable the vacuum circuit breaker to be switched on, and the vacuum; when the electric brake is opened, the current in the direction opposite to the closing operation is conducted in the brake opening and closing coil 5, under the action of the current, a magnetic field in the direction opposite to that of the permanent magnet 6 is generated on the movable iron core 7, the magnetic attraction on the left end of the movable iron core 7 is reduced, when the electromagnetic resultant force is larger than the permanent magnet holding force, the movable iron core 7 moves towards the right side, the spring driving seat 8 is driven, and the switch brake opening and closing driving rod 10 linked with the spring driving seat 8 moves towards the same direction, so that the vacuum circuit breaker is opened. The spring energy storage mechanism and the permanent magnet operating mechanism are integrated, the same spring driving seat 8 is driven, and the switch on-off driving rod 10 linked with the spring driving seat 8 acts to realize the on-off of the circuit breaker.
The design idea and innovation points of the invention are as follows: a retaining device of a spring mechanism in the prior art is omitted, an integrated structure design of the spring energy storage mechanism and the permanent magnet operating mechanism is adopted, and the permanent magnet operating mechanism and the spring energy storage mechanism drive the same part to enable the breaker to be switched on and switched off. During electric operation, the circuit breaker switching-on and switching-off operation is realized by a spring driving seat 8 connected with a permanent magnet operating mechanism driven by a movable iron core 7, and the spring switching-on and switching-off operation is automatically separated; the device is mainly used in places without operating power supplies on the operation site of vacuum circuit breaker equipment, when manual switching-on operation is adopted, energy is stored for a switching-on spring 16 through a manual operation handle, after the energy is stored in place by the switching-on spring 16, a mechanical structure in a spring energy storage mechanism drives a spring driving seat 8 connected with a movable iron core 7 to move so as to switch on the circuit breaker, at the moment, the magnetic potential energy of a permanent magnet 6 of the permanent magnet operating mechanism and the elastic potential energy of the switching-on spring 16 are superposed to realize the rapid switching-on of the circuit breaker, and after the switching-on is in.
Compared with the prior art, the spring permanent magnet switching-on and switching-off operation device provided by the invention has the advantages that the mechanism is singly kept by the magnetic force of the permanent magnet 6, the structure is simple, the manufacturing cost is low, and structural mechanical jamming generated in the switching-off process of the two sets of keeping devices is avoided.
The mechanism adopts the integrated design of the spring permanent magnet mechanism, and has the advantages of convenient installation and less adjusting links.
The spring permanent magnet mechanism provided by the invention can be additionally provided with an elastic buffer element to compensate processing and manufacturing errors and realize reliable combination and separation.
Referring to fig. 1 to 2, as a specific embodiment of the spring permanent magnet switching on/off operation device provided by the present invention, the bracket includes a bottom plate 23, three first support plates 17 fixed on the bottom plate 23, and two second support plates 20 fixed on the bottom plate 23 in parallel, the stationary flange 2 is connected to the two second support plates 20 through four connection posts 26, the spring driving seat 8, the manual switching on crank arm 11, the manual switching on cam 12, and the manual switching off cam 13 are all located between the two second support plates 20, two ends of the driven cam shaft 19, the manual energy storage shaft 14, and the manual switching off shaft 15 are respectively rotatably connected to the two second support plates 20, and the first support plate 17 is provided with an X-direction elongated hole 24 for enabling the switching on/off driving lever 10 to have an X-direction degree of freedom and a Y-direction elongated hole 25 for enabling the three-phase switching on/off connecting lever 9 to have a Y-direction degree of freedom. Herein, the X direction is the same as the X direction of the two-dimensional coordinate, and the Y direction is the same as the Y direction of the two-dimensional coordinate, with reference to fig. 4, the X direction is the length direction of the switch closing and opening drive rod 10, and the Y direction is perpendicular to the length direction of the switch closing and opening drive rod 10. Here, referring to fig. 15, the switch opening and closing driving rod 10 is provided with three-phase opening and closing connecting rod connecting holes 32 corresponding to the three-phase opening and closing connecting rods one to one and spring driving seat connecting holes 33 corresponding to the spring driving seats one to one.
Referring to fig. 1 to 2, as an embodiment of the spring permanent magnet switching on/off operation device provided by the present invention, the bottom plate 23 is a long strip plate, three first support plates 17 are uniformly distributed at intervals along the length direction of the bottom plate 23, and the middle first support plate 17 is located between two second support plates 20.
Referring to fig. 4, as an embodiment of the spring permanent magnet switching on/off operation device provided by the present invention, the switching-on spring 16 is located at the outer side of the two second support plates 20.
Referring to fig. 1 to 4, as an embodiment of the spring permanent magnet switching on/off operation device provided by the present invention, the driven cam shaft 19 and the manual energy storage shaft 14 are respectively disposed at two sides of a first support plate 17 in the middle.
Referring to fig. 1, as an embodiment of the spring permanent magnet switching on/off operation device provided by the present invention, the manual switching-off shaft 15 and the manual energy storage shaft 14 are located on the same side.
Referring to fig. 14, as an embodiment of the spring permanent magnet switching on/off operation device provided by the present invention, two switching-off springs 31 are respectively disposed on two sides of the switching on/off driving rod 10.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. Spring permanent magnetism closes separating brake operating means which characterized in that: the device comprises a bracket, a permanent magnet operating mechanism, a spring energy storage mechanism and an opening and closing operating mechanism;
the permanent magnet operating mechanism comprises a permanent magnet operating rod (1), a static end flange (2) and a static magnetic yoke (3), wherein a static iron core (4), a switching-on/off coil (5), a permanent magnet (6) and a movable iron core (7) are arranged in the static magnetic yoke (3), the static iron core (4) and the movable iron core (7) are positioned in the center of the static magnetic yoke (3) side by side, the static magnetic yoke (3), the static iron core (4) and the permanent magnet (6) are all installed on the same end surface of the static end flange (2), the static end flange (2) is fixedly connected with the bracket, and the permanent magnet operating rod (1) penetrates through center holes of the static end flange (2), the static iron core (4) and the movable iron core (7) and has a degree of freedom in the X direction;
the spring energy storage mechanism comprises a manual energy storage shaft (14), a driven cam shaft (19), a closing spring (16), a large chain wheel (21) and a small chain wheel (22), two ends of the manual energy storage shaft (14) and the driven cam shaft (19) are rotatably connected with the support, the small chain wheel (22) and the large chain wheel (21) are respectively connected with one end of the manual energy storage shaft (14) and one end of the driven cam shaft (19) in a corresponding key mode, the small chain wheel (22) is in transmission connection with the large chain wheel (21), one end of the closing spring (16) is connected with the support, and the other end of the closing spring is connected with the driven cam shaft (19) through a connecting piece (27);
the switching-on/off operation mechanism comprises a switching-on/off driving rod (10), a spring driving seat (8), a manual switching-on connecting lever (11), three pairs of three-phase switching-on/off connecting rods (9), a manual switching-on cam (12), a manual switching-off cam (13), a manual switching-on/off shaft (15) and two switching-off springs (31), wherein the switching-on/off driving rod (10), the spring driving seat (8) and the manual switching-on/off connecting lever (11) are rotatably connected, one ends of the switching-on/off driving rod (10) and the three-phase switching-on/off connecting rod (9) are rotatably connected with the bracket, the other end of the three-phase switching-on/off connecting rod (9) is rotatably connected with the bracket, the switching-on/off driving rod (10) has a degree of freedom in the X direction, the three-phase switching-on/off connecting rod (9) has a degree of freedom in the Y direction, and two ends of the manual, the manual brake-separating cam (13) is connected to the manual brake-separating shaft (15) in a key mode, one end of each of the two brake-separating springs (31) is connected with a hanging spring shaft (30) arranged on the switch brake-separating driving rod (10), and the other end of each of the two brake-separating springs is fixed on a box body of the circuit breaker;
the spring driving seat (8) and the movable iron core (7) are in threaded connection with the permanent magnet operating rod (1), and the manual closing cam (12) is in key connection with the driven cam shaft (19);
the bracket comprises a bottom plate (23), three first supporting plates (17) fixedly arranged on the bottom plate and two second supporting plates (20) fixedly arranged on the bottom plate (23) in parallel, the static end flange (2) is connected with two second supporting plates (20) through four connecting columns (26), the spring driving seat (8), the manual closing connecting lever (11), the manual closing cam (12) and the manual opening cam (13) are all positioned between the two second supporting plates (20), two ends of the driven camshaft (19), the manual energy storage shaft (14) and the manual brake separating shaft (15) are respectively connected with two second supporting plates (20) in a rotating way, and the first supporting plate (17) is provided with an X-direction long hole (24) for enabling the switch opening and closing driving rod (10) to have X-direction freedom and a Y-direction long hole (25) for enabling the three-phase opening and closing connecting rod (9) to have Y-direction freedom.
2. The spring permanent magnet switching on and off operation device according to claim 1, wherein: the bottom plate (23) is rectangular board, and is three first backup pad (17) are followed the length direction interval evenly distributed of bottom plate (23), and is middle first backup pad (17) are located two between second backup pad (20).
3. The spring permanent magnet switching on and off operation device according to claim 1, wherein: the closing spring (16) is positioned outside the two second support plates (20).
4. The spring permanent magnet switching on and off operation device according to claim 1, wherein: the driven camshaft (19) and the manual energy storage shaft (14) are respectively arranged on two sides of the first supporting plate (17) in the middle.
5. The spring permanent magnet switching on and off operation device according to claim 1, wherein: the manual brake separating shaft (15) and the manual energy storage shaft (14) are positioned on the same side.
6. The spring permanent magnet switching on and off operation device according to claim 1, wherein: the two opening springs (31) are respectively arranged on two sides of the switch opening and closing drive rod (10).
CN201811276457.XA 2018-10-30 2018-10-30 Spring permanent magnet switching on and switching off operation device Active CN109192602B (en)

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CN206516561U (en) * 2017-01-13 2017-09-22 浙江巨力电气有限公司 A kind of convenient outdoor high-voltage alternating-current vacuum breaker installed
CN108428575A (en) * 2018-03-16 2018-08-21 江苏省如高高压电器有限公司 A kind of permanent-magnet breaker dual-mechanism actuating system

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CN106158500A (en) * 2016-07-21 2016-11-23 新疆特变电工自控设备有限公司 Carry the permanent-magnet breaker of manual closing mechanism
CN206516561U (en) * 2017-01-13 2017-09-22 浙江巨力电气有限公司 A kind of convenient outdoor high-voltage alternating-current vacuum breaker installed
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