CN107403703B - Switch cabinet and operating mechanism and linkage mechanism thereof - Google Patents
Switch cabinet and operating mechanism and linkage mechanism thereof Download PDFInfo
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- CN107403703B CN107403703B CN201710613778.3A CN201710613778A CN107403703B CN 107403703 B CN107403703 B CN 107403703B CN 201710613778 A CN201710613778 A CN 201710613778A CN 107403703 B CN107403703 B CN 107403703B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 112
- 230000005540 biological transmission Effects 0.000 claims abstract description 150
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 11
- 230000006978 adaptation Effects 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 6
- 238000005204 segregation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 230000002337 anti-port Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
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Abstract
The invention provides a switch cabinet, an operating mechanism and a linkage mechanism thereof, wherein the linkage mechanism comprises an operating mechanism transmission main shaft, a breaker transmission main shaft and a protection switch transmission main shaft; the rotating piece and the first driven piece are correspondingly provided with a first pin slot matching structure, and the rotating piece is separated from the first driven piece through the first pin slot matching structure in the rotating process and drives the first driven piece to rotate in at least one section of set stroke in the rotating stroke of the rotating piece; the rotating piece and the second driven piece are correspondingly provided with second pin groove matching structures, and the rotating piece is separated from the second driven piece through the second pin groove matching structures in the rotating process and drives the second driven piece to rotate in at least one section of set stroke in the rotating stroke of the rotating piece. The linkage mechanism is convenient to operate, low in failure rate, safe and reliable.
Description
Technical Field
The invention relates to high-voltage switch equipment, in particular to a switch cabinet and an operating mechanism and a linkage mechanism thereof.
Background
The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, a disconnecting switch, a grounding switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. When a power supply line or equipment breaks down and is normally overhauled, an operator is required to disconnect the circuit breaker and perform corresponding operation on the protection switch mechanism (namely disconnecting the isolating switch and closing the grounding switch), and then a cable chamber door can be opened for overhauling and the like.
The existing switch cabinet generally comprises a circuit breaker operating mechanism and a protection switch mechanism (namely an integrated three-station isolating mechanism or a split two-station isolating mechanism and a two-station grounding mechanism), the linkage mechanism for linking the circuit breaker and the protection switch mechanism (namely an isolating switch and/or a grounding switch) is complex in structure, when the switch cabinet needs to be overhauled, an operator needs to operate the protection switch mechanism for four times or even six times in the process of once stopping and transmitting power, the operating process is very troublesome, the fault rate is high, and potential safety hazards exist. And this kind of linkage operation degree of difficulty is big, in case operating personnel's misoperation, if the circuit breaker does not break the front branch isolator, open cable chamber door when isolator does not break, all can lead to the incident.
Disclosure of Invention
The invention aims to provide a linkage mechanism which is simple in structure and convenient to operate; the invention also aims to provide an operating mechanism and a switch cabinet using the linkage mechanism.
The first technical scheme of the linkage mechanism of the invention is as follows: the circuit breaker transmission main shaft is provided with a first driven part in a rotation stopping way, and the protection switch transmission main shaft is provided with a second driven part in a rotation stopping way; the rotating part and the first driven part are correspondingly provided with first pin slot matching structures, the rotating part and the second driven part are correspondingly provided with second pin slot matching structures, in the forward rotating process, the rotating part realizes clutch transmission with the first driven part through the first pin slot matching structures and drives the first driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part, and realizes clutch transmission with the second driven part through the second pin slot matching structures and drives the second driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part; during the forward rotation, the primary coupling of the rotating member with the second driven member is after the primary coupling with the first driven member, before the primary disengagement with the first driven member or simultaneously with the primary disengagement.
The technical scheme II is further optimized on the basis of the technical scheme I of the linkage mechanism, namely the protection switch transmission main shaft is an isolation-grounding switch transmission main shaft which is used for being respectively connected with the isolating switch and the grounding switch, the rotating piece can be respectively coupled with the second driven piece through a second pin slot matching structure in two set strokes in the forward rotating stroke of the rotating piece and drives the second driven piece to rotate, and the opening action of the isolating switch and the closing action of the grounding switch are sequentially realized in the two set strokes.
The technical scheme III is further optimized on the basis of the technical scheme II of the linkage mechanism, namely the rotating part can be respectively coupled with the first driven part and drives the first driven part to rotate through the first pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part, and the opening and closing actions of the circuit breaker are respectively realized in the two sections of set strokes; in the forward rotation stroke of the rotating part, the rotating part is coupled with the first driven part and drives the breaker transmission main shaft to rotate, the rotating part is coupled with the second driven part and drives the isolation-grounding switch transmission main shaft to rotate while completing the opening action of the breaker and separating from the first driven part, so as to sequentially complete the opening action of the isolation switch and the closing action of the grounding switch, and then the rotating part is separated from the second driven part and is coupled with the first driven part again to drive the first driven part to rotate and complete the closing action of the breaker.
On the basis of the three technical schemes of the linkage mechanism, a technical scheme IV can be further optimized, namely the rotating part, the first driven part and the second driven part are all disc-shaped structures, the poking pins of the first pin groove matching structure and the second pin groove matching structure are arranged on the same side face of the disc-shaped rotating part, and the clamping grooves of the first pin groove matching structure and the second pin groove matching structure are respectively arranged on the disc-shaped first driven part and the disc-shaped second driven part.
Can also optimize on the basis of three kinds of technical scheme of above-mentioned link gear and obtain technical scheme five, promptly operating device transmission main shaft is gone up to splines and is equipped with main locking dish, circuit breaker transmission main shaft is gone up to splines and is equipped with vice locking dish, and main locking dish has the evagination arc surface, vice locking dish have with the indent arc surface of evagination arc surface adaptation, when dialling round pin, the draw-in groove alternate segregation of first cotter way cooperation structure, main locking dish carries out the locking through the cooperation of evagination arc surface and indent arc surface to vice locking dish.
Can also optimize on the basis of above-mentioned link gear's three kinds of technical scheme and obtain technical scheme six, promptly operating device transmission main shaft is gone up to splines and is equipped with main locking dish, protection switch transmission main shaft is gone up to splines and is equipped with vice locking dish, and main locking dish has the evagination arc surface, vice locking dish have with the indent arc surface of evagination arc surface adaptation, when the round pin of dialling of second cotter way cooperation structure, draw-in groove alternate segregation, main locking dish carries out the locking through the cooperation of evagination arc surface and indent arc surface to vice locking dish.
The operating mechanism comprises a driving device and a linkage mechanism driven by the driving device, wherein the linkage mechanism comprises an operating mechanism transmission main shaft, a circuit breaker transmission main shaft and a protection switch transmission main shaft which are arranged in parallel, a rotating part is assembled on the operating mechanism transmission main shaft in a rotation stopping manner, a first driven part is assembled on the circuit breaker transmission main shaft in a rotation stopping manner, and a second driven part is assembled on the protection switch transmission main shaft in a rotation stopping manner; the rotating part and the first driven part are correspondingly provided with first pin slot matching structures, the rotating part and the second driven part are correspondingly provided with second pin slot matching structures, in the forward rotating process, the rotating part realizes clutch transmission with the first driven part through the first pin slot matching structures and drives the first driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part, and realizes clutch transmission with the second driven part through the second pin slot matching structures and drives the second driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part; during the forward rotation, the primary coupling of the rotating member with the second driven member is after the primary coupling with the first driven member, before the primary disengagement with the first driven member or simultaneously with the primary disengagement.
The technical scheme II can be obtained by further optimizing the technical scheme I of the operating mechanism, namely the protection switch transmission main shaft is an isolation-grounding switch transmission main shaft which is used for being respectively connected with the isolating switch and the grounding switch, the rotating piece can be respectively coupled with the second driven piece through a second pin slot matching structure in two set strokes in the forward rotating stroke of the rotating piece and drives the second driven piece to rotate, and the opening action of the isolating switch and the closing action of the grounding switch are sequentially realized in the two set strokes.
A third technical scheme can be obtained by further optimizing the second technical scheme of the operating mechanism, namely the rotating part can be respectively coupled with the first driven part and drive the first driven part to rotate through the first pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part, and the opening and closing actions of the circuit breaker are respectively realized in the two sections of set strokes; in the forward rotation stroke of the rotating part, the rotating part is coupled with the first driven part and drives the breaker transmission main shaft to rotate, the rotating part is coupled with the second driven part and drives the isolation-grounding switch transmission main shaft to rotate while completing the opening action of the breaker and separating from the first driven part, so as to sequentially complete the opening action of the isolation switch and the closing action of the grounding switch, and then the rotating part is separated from the second driven part and is coupled with the first driven part again to drive the first driven part to rotate and complete the closing action of the breaker.
On the basis of the three technical schemes of the linkage mechanism, a technical scheme IV can be further optimized, namely the rotating part, the first driven part and the second driven part are all disc-shaped structures, the poking pins of the first pin groove matching structure and the second pin groove matching structure are arranged on the same side face of the disc-shaped rotating part, and the clamping grooves of the first pin groove matching structure and the second pin groove matching structure are respectively arranged on the disc-shaped first driven part and the disc-shaped second driven part.
Can also optimize on the basis of three kinds of technical scheme of above-mentioned link gear and obtain technical scheme five, promptly operating device transmission main shaft is gone up to splines and is equipped with main locking dish, circuit breaker transmission main shaft is gone up to splines and is equipped with vice locking dish, and main locking dish has the evagination arc surface, vice locking dish have with the indent arc surface of evagination arc surface adaptation, when dialling round pin, the draw-in groove alternate segregation of first cotter way cooperation structure, main locking dish carries out the locking through the cooperation of evagination arc surface and indent arc surface to vice locking dish.
Can also optimize on the basis of above-mentioned link gear's three kinds of technical scheme and obtain technical scheme six, promptly operating device transmission main shaft is gone up to splines and is equipped with main locking dish, protection switch transmission main shaft is gone up to splines and is equipped with vice locking dish, and main locking dish has the evagination arc surface, vice locking dish have with the indent arc surface of evagination arc surface adaptation, when the round pin of dialling of second cotter way cooperation structure, draw-in groove alternate segregation, main locking dish carries out the locking through the cooperation of evagination arc surface and indent arc surface to vice locking dish.
The technical scheme I of the switch cabinet comprises an operating mechanism, a circuit breaker and a protection switch mechanism, wherein the circuit breaker and the protection switch mechanism are driven by the operating mechanism to act, the operating mechanism comprises a driving device and a linkage mechanism driven by the driving device, the linkage mechanism comprises an operating mechanism transmission main shaft, a circuit breaker transmission main shaft and a protection switch transmission main shaft which are arranged in parallel, a rotating part is assembled on the operating mechanism transmission main shaft in a rotation stopping manner, a first driven part is assembled on the circuit breaker transmission main shaft in a rotation stopping manner, and a second driven part is assembled on the protection switch transmission main shaft in a rotation stopping manner; the rotating part and the first driven part are correspondingly provided with first pin slot matching structures, the rotating part and the second driven part are correspondingly provided with second pin slot matching structures, the rotating part realizes clutch transmission with the first driven part through the first pin slot matching structures in the forward rotating process and drives the first driven part to rotate in at least one section of set stroke in the rotating stroke of the rotating part, and realizes clutch transmission with the second driven part through the second pin slot matching structures and drives the second driven part to rotate in at least one section of set stroke in the rotating stroke of the rotating part; during the forward rotation, the primary coupling of the rotating member with the second driven member is after the primary coupling with the first driven member, before the primary disengagement with the first driven member or simultaneously with the primary disengagement.
The technical scheme II can be obtained by further optimizing the technical scheme I of the switch cabinet, namely the protection switch transmission main shaft is an isolation-grounding switch transmission main shaft which is used for being respectively connected with the isolating switch and the grounding switch, the rotating piece can be respectively coupled with the second driven piece through a second pin slot matching structure in two set strokes in the forward rotating stroke of the rotating piece and drives the second driven piece to rotate, and the opening action of the isolating switch and the closing action of the grounding switch are sequentially realized in the two set strokes.
A third technical scheme can be obtained by further optimizing the second technical scheme of the switch cabinet, namely the rotating part can be respectively coupled with the first driven part and drive the first driven part to rotate through the first pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part, and the opening and closing actions of the circuit breaker are respectively realized in the two sections of set strokes; in the forward rotation stroke of the rotating part, the rotating part is coupled with the first driven part and drives the breaker transmission main shaft to rotate to complete breaker opening action, then the rotating part is coupled with the second driven part and drives the isolation-grounding switch transmission main shaft to rotate to sequentially complete isolation switch opening action and grounding switch closing action, and then the rotating part is separated from the second driven part and is coupled with the first driven part again to drive the first driven part to rotate to complete breaker closing action.
On the basis of the three technical schemes of the switch cabinet, a technical scheme IV can be further optimized, namely the rotating part, the first driven part and the second driven part are all disc-shaped structures, the poking pins of the first pin groove matching structure and the second pin groove matching structure are arranged on the same side face of the disc-shaped rotating part, and the clamping grooves of the first pin groove matching structure and the second pin groove matching structure are respectively arranged on the disc-shaped first driven part and the disc-shaped second driven part.
Can also optimize on the basis of three kinds of technical scheme of above-mentioned cubical switchboard and obtain technical scheme five, promptly operating device transmission main shaft is gone up to splines and is equipped with main locking dish, circuit breaker transmission main shaft is gone up to splines and is equipped with vice locking dish, and main locking dish has the evagination arc surface, vice locking dish have with the indent arc surface of evagination arc surface adaptation, when dialling round pin, the draw-in groove alternate segregation of first cotter way cooperation structure, main locking dish carries out the locking through the cooperation of evagination arc surface and indent arc surface to vice locking dish.
Can also optimize on the basis of three kinds of technical scheme of above-mentioned cubical switchboard and obtain technical scheme six, promptly operating device transmission main shaft is gone up to spline and is equipped with main locking dish, protection switch transmission main shaft is gone up to spline and is equipped with vice locking dish, and main locking dish has the evagination arc surface, vice locking dish have with the indent arc surface of evagination arc surface adaptation, when the round pin of dialling of second cotter way cooperation structure, draw-in groove alternate segregation, main locking dish carries out the locking through the cooperation of evagination arc surface and indent arc surface to vice locking dish.
When the switch cabinet needs to be overhauled, the driving device drives the operating mechanism to drive the main shaft to rotate in the forward direction, the rotating part on the operating mechanism driving main shaft can be coupled with the first driven part through the first pin slot matching structure and drive the circuit breaker driving main shaft to rotate, the opening action of the circuit breaker is realized, then the rotating part is coupled with the second driven part through the second pin slot matching structure and drive the protection switch driving main shaft to rotate, the corresponding opening and closing of the protection switch are realized, the corresponding action of the protection switch mechanism after the circuit breaker is opened is finally realized, and the operation is simple. The switching-on and switching-off of the circuit breaker and the protection switch can be realized according to the set sequence by setting the time and the sequence of the clutch of the rotating part and the first driven part and the clutch of the rotating part and the second driven part, so that the stable and orderly switching-on and switching-off actions of the circuit breaker and the protection switch are realized through the linkage mechanism, and the circuit breaker and the protection switch are safe and reliable.
Furthermore, the protective switch transmission main shaft is respectively in transmission connection with the isolating switch and the grounding switch, the rotating piece is in coupling transmission with the protective switch transmission main shaft in two sections of set strokes in the forward rotation process, and switching-on and switching-off actions of the isolating switch and the grounding switch according to a certain sequence are respectively realized, so that the transmission of the isolating switch and the grounding switch is integrated on the protective switch transmission main shaft, the structure is compact, the isolating switch and the grounding switch can be simultaneously driven by the transmission main shaft of the operating mechanism, and the operation is simple.
Furthermore, the rotating part, the first driven part and the second transmission part are all disc-shaped structures, the rotating part is stable and reliable during rotation, the poking pins of the first pin groove matching structure and the second pin groove matching structure are arranged on the same side face of the disc-shaped rotating part, and the first disc-shaped driven part and the second disc-shaped driven part are also positioned on the same side of the disc-shaped rotating part during arrangement, so that the whole linkage mechanism is compact in structure and small in occupied space.
Furthermore, through setting up main lock dish and auxiliary lock dish, can realize the locking to circuit breaker transmission main shaft or protection switch transmission main shaft through unsmooth cooperation arc surface on main lock dish and the auxiliary lock dish, guarantee circuit breaker and protection switch's the keeping in place.
Drawings
Fig. 1 is a schematic diagram of a linkage mechanism of a switch cabinet of the invention in a state of closing a circuit breaker and closing an isolating switch;
fig. 2 is a schematic diagram of a linkage mechanism of the switch cabinet of the invention in the opening and closing states of the circuit breaker and the isolating switch;
FIG. 3 is a schematic diagram of a linkage mechanism of the switch cabinet of the present invention in the state of the circuit breaker being opened and the isolating switch being opened;
FIG. 4 is a right side view of FIG. 3;
fig. 5 is a schematic diagram of a linkage mechanism of the switch cabinet of the invention in the opening and closing states of the circuit breaker and the grounding switch;
fig. 6 is a schematic diagram of a linkage mechanism of the switch cabinet of the invention in a state that the circuit breaker is switched on and the grounding switch is switched on.
In the figure: 1. a rotating member; 2. a first driven member; 3. a second driven member; 4. a main lock disk; 5. a secondary lock disk; 6. the operating mechanism drives the main shaft; 7. a shifting pin of the first pin slot matching structure; 8. the first pin slot is matched with the clamping slot of the structure; 9. a breaker drive spindle; 10. an isolation-grounding switch drive spindle; 11. a convex arc surface; 12. an inner concave arc surface; 13. the second pin slot is matched with the shifting pin of the structure; 14. the second pin slot is matched with the clamping slot of the structure.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The first specific embodiment of the switch cabinet comprises a cabinet body, wherein a circuit breaker and a protection switch mechanism linked with the circuit breaker are installed in the cabinet body, in the first embodiment, the protection switch mechanism mainly refers to an isolating switch and a grounding switch, an operating mechanism for driving the circuit breaker, the isolating switch and the grounding switch to act is further installed in the cabinet body, and the operating mechanism comprises a driving device and a linkage mechanism in transmission connection with the driving device.
Specifically, the linkage mechanism includes an operating mechanism transmission main shaft 6, a circuit breaker transmission main shaft 9, and an disconnecting-grounding switch transmission main shaft 10, which are arranged in parallel, as shown in fig. 1 to 6. The operating mechanism transmission main shaft 6 is provided with a disc-shaped rotating part 1 in a rotation stop mode, the breaker transmission main shaft 9 is provided with a first driven part 2 in a disc-shaped structure in a rotation stop mode, and the isolating-grounding switch transmission main shaft 10 is provided with a second driven part 3 in a disc-shaped structure in a rotation stop mode. The rotating part 1 and the first driven part 2 are correspondingly provided with first pin slot matching structures, the rotating part 1 and the second driven part 3 are correspondingly provided with second pin slot matching structures, when the rotating part 1 rotates forwards, namely anticlockwise rotates as shown in figure 1, the rotating part 1 can respectively realize the clutch transmission relation with the first driven part 2 and the second driven part 3 through the first pin slot matching structures and the second pin slot matching structures and drive the first driven part 2 and the second driven part 3 to rotate, and finally realize the transmission with the circuit breaker transmission main shaft and the isolation-grounding switch transmission main shaft.
Fig. 1, 2, 3, 5 and 6 sequentially show the process of clutching the rotary member 1 with the first and second driven members, respectively, during the forward rotation.
The first pin-slot matching structure comprises two shifting pins 7 arranged on the disc-shaped rotating part 1 and two clamping slots 8 arranged on the first driven part 2 as shown in fig. 1, the two shifting pins 7 are positioned on the same circumference and have set central angles therebetween, the two clamping slots 8 are also positioned on the same circumference and have set central angles therebetween, and the circle where the two shifting pins 7 are positioned is intersected with the circle where the two clamping slots 8 are positioned. Therefore, when the rotating part 1 rotates, the two shifting pins 7 on the rotating part can correspondingly slide into and out of the two clamping grooves 8 in sequence, when the shifting pins slide into the clamping grooves, the rotating part 1 and the first driven part 2 are in coupling transmission through the blocking matching of the shifting pins and the groove walls of the clamping grooves, and after the shifting pins slide out of the clamping grooves, the transmission relation between the transmission part 1 and the first driven part 2 is separated.
The second pin-slot matching structure comprises two other shifting pins 13 arranged on the disc-shaped rotating member 1 and two clamping slots 14 arranged on the second driven member 3 as shown in fig. 1, the two shifting pins 13 are positioned on the same circumference and have set central angles therebetween, the two clamping slots 14 are also positioned on the same circumference and have set central angles therebetween, and the circle where the two shifting pins 13 are positioned intersects with the circle where the two clamping slots 14 are positioned. The same clutch transmission relationship between the rotating part 1 and the first driven part 2, the rotating part 1 can enable the two shifting pins 13 on the rotating part to correspondingly slide into and out of the two clamping grooves 14 in sequence in the forward rotation process, when the shifting pins slide into the clamping grooves, the coupling transmission between the rotating part 1 and the second driven part 3 is realized through the stop matching between the shifting pins and the groove walls of the clamping grooves, and after the shifting pins slide out of the clamping grooves, the separation of the transmission relationship between the transmission part 1 and the first driven part 3 is realized.
As can be seen from the above description, the rotating member 1 drives the first driven member 2 to rotate in two set strokes through sequential clutching of the two pin-shifting pins and the clamping grooves of the first pin-groove matching structure in the forward rotation stroke of the rotating member, and the rotating member 1 drives the second driven member 3 to rotate in two set strokes through sequential clutching of the two pin-shifting pins and the clamping grooves of the second pin-groove matching structure in the rotation stroke of the rotating member.
Referring to fig. 1, 2, 3, 5 and 6, as shown in fig. 1, a rotating member 1 first drives a first driven member 2 to rotate a certain angle to a state shown in fig. 2 through coupling of a shifting pin 7 and a slot 8, the shifting pin 7 is disengaged from the slot 8, a shifting pin 13 is just coupled with a slot 14, the rotating member 1 continues to rotate, the rotating member 1 drives a second driven member 3 to rotate a certain angle to a state shown in fig. 3 through the coupled shifting pin 13 and slot 14, the shifting pin 13 is disengaged from the slot 14, another pair of shifting pins 13 is just coupled with the slot 14, the rotating member 1 rotates and drives the second driven member 3 to rotate a certain angle again through coupling of the shifting pins 13 and the slot 14 to a state shown in fig. 5, at this time, the shifting pin 13 is disengaged from the slot 14, another shifting pin 7 on the rotating member 1 is coupled with the slot 8 on the first driven member 2, the rotating member 1 continues to rotate and drive the first driven member 2 to rotate a certain angle through the shifting pin 7 and the slot 8 to a The states shown. In the whole process, the rotating part 1 drives the first driven part 2 to rotate through two set rotating strokes, the rotating part 1 drives the second driven part 3 to rotate through two set rotating strokes, the two set rotating strokes for driving the first rotating part to rotate are separated, and the two set rotating strokes for driving the second driven part to rotate are continuous and are positioned between the two set rotating strokes for driving the first driven part to rotate.
In sequence, in the first set rotation stroke process that the rotating part 1 drives the first driven part 2 to rotate, the circuit breaker transmission main shaft 9 rotates and realizes the opening of the circuit breaker, in the first set rotation stroke process that the rotating part 1 drives the second driven part 3 to rotate, the isolation-grounding switch transmission main shaft 10 rotates and realizes the opening of the isolation switch, in the second set rotation stroke process that the rotating part 1 drives the second driven part 3 to rotate, the isolation-grounding switch transmission main shaft 10 rotates and realizes the closing of the grounding switch, and in the second set rotation stroke process that the rotating part 1 drives the first driven part 2 to rotate, the circuit breaker transmission main shaft 9 rotates and realizes the closing of the circuit breaker. The rotating angle corresponding to the first set rotating stroke and the second set rotating stroke of the rotating part 1 driving the second driven part 3 to rotate is equal.
The above-mentioned process is when maintaining the cubical switchboard, and corresponding action process of circuit breaker, isolator and earthing switch under operating device drives, drives operating mechanism transmission main shaft antiport at operating mechanism's drive arrangement, and as shown in the figure, when rotating the piece clockwise rotation promptly, action and the order of circuit breaker, isolator and earthing switch all are opposite with above-mentioned process.
In order to ensure the safety and reliability of the switch cabinet in the use process, the linkage mechanism further comprises a locking structure which keeps the circumferential position of the transmission main shaft of the isolating-grounding switch unchanged in the rotation stroke process that the rotating piece is separated from the transmission relation with the second driven piece. Specifically, the operating mechanism transmission main shaft 6 is equipped with a main lock disc 4 in an up-rotation mode, the isolation earthing switch transmission main shaft 10 is equipped with an auxiliary lock disc 5 in an up-rotation mode, the main lock disc 4 is provided with an outer convex arc surface 11, the auxiliary lock disc 5 is provided with an inner concave arc surface 12 matched with the outer convex arc surface 11, and the inner concave arc surface 12 is provided with two sections. In the rotation stroke of the rotating member which is separated from the transmission of the second driven member, as shown in fig. 1 and fig. 6, the main lock disc 4 is respectively matched with the two sections of inner concave arc surfaces 12 through the outer convex arc surface 11 to lock the auxiliary lock disc 5, so that the auxiliary lock disc 5 is prevented from rotating, the transmission main shaft of the isolating-grounding switch is ensured not to rotate, and the positions of the isolating switch and the grounding switch are ensured to be kept. Certainly, the main lock disc 4 is further provided with a position-avoiding concave arc surface, and the position-avoiding concave arc surface gives way to the auxiliary lock disc 5 in the rotation stroke of the rotation part 1 and the second driven part 3 in coupling transmission, so that interference to the auxiliary lock disc 5 in the process that the rotation part 1 drives the second driven part 3 to rotate is avoided.
In this embodiment, the two pins 7 of the first pin-and-slot matching structure and the two pins 13 of the second pin-and-slot matching structure are located on the same side of the disc-shaped rotating member 1, the first driven member 2 and the second driven member 3 are also located on the same side of the disc-shaped rotating member 1, and the main lock disc 4 and the auxiliary lock disc 5 are located on one side of the first driven member, which is away from the rotating member.
The operating mechanism of the switch cabinet can drive the breaker, the disconnecting switch and the grounding switch to complete switching-off or switching-on through one-time operation of the linkage mechanism, is simple and convenient to operate, is not easy to make mistakes, and has higher safety.
The invention also provides an embodiment II of the switch cabinet, which is different from the embodiment I in that the protection switch mechanism only comprises an isolating switch, namely, the isolating-grounding switch transmission main shaft in the embodiment I is only in transmission connection with the isolating switch and is the isolating switch transmission main shaft, at the moment, the rotating part only needs to have a set rotating stroke for driving the second driven part to rotate in the forward rotating process, the isolating switch is switched from a closing state to an opening state in the set rotating stroke, and correspondingly, the rotating part only needs to have a set rotating stroke for driving the first driven part to rotate in the forward rotating stroke. The grounding switch can be controlled to act by other operating mechanisms.
The invention also provides a third embodiment of the switch cabinet, which is different from the first embodiment in that the protection switch mechanism only comprises the grounding switch, that is, the isolation-grounding switch transmission main shaft in the first embodiment is only in transmission connection with the grounding switch and is the grounding switch transmission main shaft, at the moment, the rotating part only needs to have a set rotating stroke for driving the second driven part to rotate in the forward rotating process, and the grounding switch is switched from the opening state to the closing state in the set rotating stroke, and correspondingly, the rotating part only needs to have a set rotating stroke for driving the first driven part to rotate in the forward rotating stroke. As for the isolating switch, the action can be controlled by other operating mechanisms.
The invention also provides a fourth embodiment of the switch cabinet, which is different from the first embodiment in that the rotating part has a set rotating stroke for driving the first driven part to rotate in the forward rotating process, namely, after the operating mechanism drives the breaker to open, the disconnecting switch to open and the grounding switch to close, closing action is not performed any more.
The invention also provides an embodiment five of the switch cabinet, which is different from the embodiment one in that the rotating part is of an X-shaped structure with four toggle contact fingers, and correspondingly, two shifting forks which can be matched with the corresponding toggle contact fingers to realize the clutch transmission relationship with the rotating part in the forward and reverse rotating processes of the rotating part are respectively arranged on the first driven part and the second driven part.
The invention further provides a sixth embodiment of the switch cabinet, wherein a second main locking disc is further arranged on the operating mechanism transmission main shaft, a second auxiliary locking disc is further arranged on the circuit breaker transmission main shaft, the second main locking disc is provided with a second convex arc surface, the second auxiliary locking disc is provided with a second concave arc surface matched with the second convex arc surface, and when the shifting pin and the clamping groove of the first pin groove matching structure are separated from each other, the second main locking disc locks the second auxiliary locking disc through the matching of the second convex arc surface and the second concave arc surface, so that the circumferential locking of the circuit breaker transmission main shaft in the rotating process of the operating mechanism is realized, and the in-place keeping of the circuit breaker is realized.
The invention also provides an embodiment seventh of the switch cabinet, in the embodiment seventh, the initial coupling of the rotating part and the second driven part is performed after the initial coupling of the rotating part and the first driven part and before the initial disengagement, and the circumferential position of the shifting pin 13 in the second pin-slot matching structure needs to be adjusted.
In the first embodiment of the switch cabinet, the operating mechanism transmission main shaft, the breaker transmission main shaft and the isolation-grounding switch transmission main shaft are arranged in parallel at intervals and pass through the same straight line, in other embodiments, the three transmission main shafts can be arranged in parallel at intervals and in a triangular arrangement, and at the moment, the positions of the shifting pin and the clamping groove of the first pin-groove matching structure and the second pin-groove matching structure need to be adjusted.
The specific structure of the embodiment of the operating mechanism of the present invention is the same as that of the operating mechanism in the switch cabinet embodiment, and the detailed description thereof is omitted here.
The specific structure of the embodiment of the linkage mechanism of the invention is the same as that of the linkage mechanism in the switch cabinet embodiment, and the detailed description is omitted here.
Claims (12)
1. A linkage mechanism is characterized by comprising an operating mechanism transmission main shaft, a circuit breaker transmission main shaft and a protection switch transmission main shaft which are arranged in parallel, wherein a rotating piece is assembled on the operating mechanism transmission main shaft in a rotation stopping manner, a first driven piece is assembled on the circuit breaker transmission main shaft in a rotation stopping manner, and a second driven piece is assembled on the protection switch transmission main shaft in a rotation stopping manner; the rotating part and the first driven part are correspondingly provided with first pin slot matching structures, the rotating part and the second driven part are correspondingly provided with second pin slot matching structures, in the forward rotating process, the rotating part realizes clutch transmission with the first driven part through the first pin slot matching structures and drives the first driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part, and realizes clutch transmission with the second driven part through the second pin slot matching structures and drives the second driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part; during the forward rotation of the rotating member, the primary coupling of the rotating member and the second driven member is after the primary coupling with the first driven member, before the primary disengagement with the first driven member or at the same time as the primary disengagement, the protection switch transmission main shaft is an isolation-grounding switch transmission main shaft which is respectively connected with an isolation switch and a grounding switch, the rotating part is respectively coupled with the second driven part through a second pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part and drives the second driven part to rotate, and the opening action of the isolating switch and the closing action of the grounding switch are sequentially realized in the two sections of set strokes, the rotating part can be respectively coupled with the first driven part through a first pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part and drives the first driven part to rotate, and the opening action and the closing action of the circuit breaker are respectively realized in the two sections of set strokes; in the forward rotation stroke of the rotating part, the rotating part is coupled with the first driven part and drives the breaker transmission main shaft to rotate, the rotating part is coupled with the second driven part and drives the isolation-grounding switch transmission main shaft to rotate while completing the opening action of the breaker and separating from the first driven part, so as to sequentially complete the opening action of the isolation switch and the closing action of the grounding switch, and then the rotating part is separated from the second driven part and is coupled with the first driven part again to drive the first driven part to rotate and complete the closing action of the breaker.
2. The linkage mechanism according to claim 1, wherein the rotatable member, the first driven member and the second driven member are all disc-shaped structures, the pins of the first pin-groove matching structure and the second pin-groove matching structure are arranged on the same side surface of the disc-shaped rotatable member, and the clamping grooves of the first pin-groove matching structure and the second pin-groove matching structure are respectively arranged on the disc-shaped first driven member and the disc-shaped second driven member.
3. The linkage mechanism according to claim 1, wherein the operating mechanism transmission main shaft is provided with a main locking disc in a rotation stopping manner, the circuit breaker transmission main shaft is provided with an auxiliary locking disc in a rotation stopping manner, the main locking disc is provided with a convex arc surface, the auxiliary locking disc is provided with a concave arc surface matched with the convex arc surface, and when the shifting pin and the clamping groove of the first pin groove matching structure are separated from each other, the main locking disc locks the auxiliary locking disc through matching of the convex arc surface and the concave arc surface.
4. The linkage mechanism according to claim 1, wherein the operating mechanism transmission main shaft is provided with a main locking disc in a rotation stopping way, the protection switch transmission main shaft is provided with an auxiliary locking disc in a rotation stopping way, the main locking disc is provided with an outer convex arc surface, the auxiliary locking disc is provided with an inner concave arc surface matched with the outer convex arc surface, and when the shifting pin and the clamping groove of the second pin groove matching structure are separated from each other, the main locking disc locks the auxiliary locking disc through the matching of the outer convex arc surface and the inner concave arc surface.
5. An operating mechanism is characterized by comprising a driving device and a linkage mechanism driven by the driving device, wherein the linkage mechanism comprises an operating mechanism transmission main shaft, a circuit breaker transmission main shaft and a protection switch transmission main shaft which are arranged in parallel, a rotating part is assembled on the operating mechanism transmission main shaft in a rotation stopping manner, a first driven part is assembled on the circuit breaker transmission main shaft in a rotation stopping manner, and a second driven part is assembled on the protection switch transmission main shaft in a rotation stopping manner; the rotating part and the first driven part are correspondingly provided with first pin slot matching structures, the rotating part and the second driven part are correspondingly provided with second pin slot matching structures, in the forward rotating process, the rotating part realizes clutch transmission with the first driven part through the first pin slot matching structures and drives the first driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part, and realizes clutch transmission with the second driven part through the second pin slot matching structures and drives the second driven part to rotate within at least one section of set stroke in the rotating stroke of the rotating part; during the forward rotation of the rotating member, the primary coupling of the rotating member and the second driven member is after the primary coupling with the first driven member, before the primary disengagement with the first driven member or at the same time as the primary disengagement, the protection switch transmission main shaft is an isolation-grounding switch transmission main shaft which is respectively connected with an isolation switch and a grounding switch, the rotating part is respectively coupled with the second driven part through a second pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part and drives the second driven part to rotate, and the opening action of the isolating switch and the closing action of the grounding switch are sequentially realized in the two sections of set strokes, the rotating part can be respectively coupled with the first driven part through a first pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part and drives the first driven part to rotate, and the opening action and the closing action of the circuit breaker are respectively realized in the two sections of set strokes; in the forward rotation stroke of the rotating part, the rotating part is coupled with the first driven part and drives the breaker transmission main shaft to rotate, the rotating part is coupled with the second driven part and drives the isolation-grounding switch transmission main shaft to rotate while completing the opening action of the breaker and separating from the first driven part, so as to sequentially complete the opening action of the isolation switch and the closing action of the grounding switch, and then the rotating part is separated from the second driven part and is coupled with the first driven part again to drive the first driven part to rotate and complete the closing action of the breaker.
6. The operating mechanism as claimed in claim 5, wherein the rotatable member, the first driven member and the second driven member are all disc-shaped structures, the pins of the first and second pin-slot cooperating structures are arranged on the same side of the disc-shaped rotatable member, and the locking slots of the first and second pin-slot cooperating structures are respectively arranged on the disc-shaped first driven member and the disc-shaped second driven member.
7. The operating mechanism according to claim 5, wherein the operating mechanism transmission main shaft is provided with a main locking disc in a rotation stopping manner, the circuit breaker transmission main shaft is provided with an auxiliary locking disc in a rotation stopping manner, the main locking disc is provided with a convex arc surface, the auxiliary locking disc is provided with a concave arc surface matched with the convex arc surface, and when the shifting pin and the clamping groove of the first pin groove matching structure are separated from each other, the main locking disc locks the auxiliary locking disc through matching of the convex arc surface and the concave arc surface.
8. The operating mechanism according to claim 5, wherein the operating mechanism transmission main shaft is provided with a main locking disc in a rotation stopping way, the protection switch transmission main shaft is provided with an auxiliary locking disc in a rotation stopping way, the main locking disc is provided with a convex arc surface, the auxiliary locking disc is provided with a concave arc surface matched with the convex arc surface, and when the shifting pin and the clamping groove of the second pin groove matching structure are separated from each other, the main locking disc locks the auxiliary locking disc through the matching of the convex arc surface and the concave arc surface.
9. A switch cabinet comprises an operating mechanism, a circuit breaker and a protection switch mechanism, wherein the circuit breaker and the protection switch mechanism are driven by the operating mechanism to act, the operating mechanism comprises a driving device and a linkage mechanism driven by the driving device, the linkage mechanism comprises an operating mechanism transmission main shaft, a circuit breaker transmission main shaft and a protection switch transmission main shaft which are arranged in parallel, a rotating part is assembled on the operating mechanism transmission main shaft in a rotation stopping manner, a first driven part is assembled on the circuit breaker transmission main shaft in a rotation stopping manner, and a second driven part is assembled on the protection switch transmission main shaft in a rotation stopping manner; the rotating part and the first driven part are correspondingly provided with first pin slot matching structures, the rotating part and the second driven part are correspondingly provided with second pin slot matching structures, the rotating part realizes clutch transmission with the first driven part through the first pin slot matching structures in the forward rotating process and drives the first driven part to rotate in at least one section of set stroke in the rotating stroke of the rotating part, and realizes clutch transmission with the second driven part through the second pin slot matching structures and drives the second driven part to rotate in at least one section of set stroke in the rotating stroke of the rotating part; during the forward rotation of the rotating member, the primary coupling of the rotating member and the second driven member is after the primary coupling with the first driven member, before the primary disengagement with the first driven member or at the same time as the primary disengagement, the protection switch transmission main shaft is an isolation-grounding switch transmission main shaft which is respectively connected with an isolation switch and a grounding switch, the rotating part is respectively coupled with the second driven part through a second pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part and drives the second driven part to rotate, and the opening action of the isolating switch and the closing action of the grounding switch are sequentially realized in the two sections of set strokes, the rotating part can be respectively coupled with the first driven part through a first pin slot matching structure in two sections of set strokes in the forward rotating stroke of the rotating part and drives the first driven part to rotate, and the opening action and the closing action of the circuit breaker are respectively realized in the two sections of set strokes; in the forward rotation stroke of the rotating part, the rotating part is coupled with the first driven part and drives the breaker transmission main shaft to rotate, the rotating part is coupled with the second driven part and drives the isolation-grounding switch transmission main shaft to rotate while completing the opening action of the breaker and separating from the first driven part, so as to sequentially complete the opening action of the isolation switch and the closing action of the grounding switch, and then the rotating part is separated from the second driven part and is coupled with the first driven part again to drive the first driven part to rotate and complete the closing action of the breaker.
10. The switchgear as claimed in claim 9, wherein the rotating member, the first driven member and the second driven member are all disc-shaped structures, the pins of the first and second pin-slot matching structures are disposed on the same side of the disc-shaped rotating member, and the engaging slots of the first and second pin-slot matching structures are disposed on the disc-shaped first driven member and the disc-shaped second driven member, respectively.
11. The switch cabinet according to claim 9, wherein the main locking disc is assembled on the operating mechanism transmission main shaft in a rotation-stopping manner, the auxiliary locking disc is assembled on the circuit breaker transmission main shaft in a rotation-stopping manner, the main locking disc has an outer convex arc surface, the auxiliary locking disc has an inner concave arc surface matched with the outer convex arc surface, and when the shifting pin and the clamping groove of the first pin groove matching structure are separated from each other, the main locking disc locks the auxiliary locking disc through matching of the outer convex arc surface and the inner concave arc surface.
12. The switch cabinet according to claim 9, wherein the operating mechanism transmission main shaft is provided with a main lock disc in a rotation stopping manner, the protection switch transmission main shaft is provided with an auxiliary lock disc in a rotation stopping manner, the main lock disc is provided with a convex arc surface, the auxiliary lock disc is provided with a concave arc surface matched with the convex arc surface, and when the shifting pin and the clamping groove of the second pin groove matching structure are separated from each other, the main lock disc locks the auxiliary lock disc through the matching of the convex arc surface and the concave arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710613778.3A CN107403703B (en) | 2017-07-25 | 2017-07-25 | Switch cabinet and operating mechanism and linkage mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710613778.3A CN107403703B (en) | 2017-07-25 | 2017-07-25 | Switch cabinet and operating mechanism and linkage mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107403703A CN107403703A (en) | 2017-11-28 |
| CN107403703B true CN107403703B (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710613778.3A Active CN107403703B (en) | 2017-07-25 | 2017-07-25 | Switch cabinet and operating mechanism and linkage mechanism thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066208A (en) * | 1958-12-08 | 1962-11-27 | Wagner Electric Corp | Tap changing apparatus |
| US5272291A (en) * | 1991-12-30 | 1993-12-21 | Boltswitch, Inc. | Dual switch actuator mechanism with Geneva drive plate and follower plates detent assembly |
| CN201536067U (en) * | 2009-08-21 | 2010-07-28 | 苏州未来电器有限公司 | Mechanical interlocking and driving device of single-motor dual-power supply converting switch |
| CN103500673A (en) * | 2013-10-15 | 2014-01-08 | 杭州电器开关有限公司 | Interlock type inflatable load switch and interlocking method thereof |
| CN207282922U (en) * | 2017-07-25 | 2018-04-27 | 许继集团有限公司 | Switchgear and its operating mechanism, linkage mechanism |
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2017
- 2017-07-25 CN CN201710613778.3A patent/CN107403703B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066208A (en) * | 1958-12-08 | 1962-11-27 | Wagner Electric Corp | Tap changing apparatus |
| US5272291A (en) * | 1991-12-30 | 1993-12-21 | Boltswitch, Inc. | Dual switch actuator mechanism with Geneva drive plate and follower plates detent assembly |
| CN201536067U (en) * | 2009-08-21 | 2010-07-28 | 苏州未来电器有限公司 | Mechanical interlocking and driving device of single-motor dual-power supply converting switch |
| CN103500673A (en) * | 2013-10-15 | 2014-01-08 | 杭州电器开关有限公司 | Interlock type inflatable load switch and interlocking method thereof |
| CN207282922U (en) * | 2017-07-25 | 2018-04-27 | 许继集团有限公司 | Switchgear and its operating mechanism, linkage mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107403703A (en) | 2017-11-28 |
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Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee after: XJ Group Corp. Patentee after: Xuji delischer Electric Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: XJ Group Corp. Patentee before: XUCHANG XUJI DRIESCHER WEGBERG ELECTRIC Co.,Ltd. Patentee before: State Grid Corporation of China |