CN114068257B - Switching-on/off control mechanism - Google Patents
Switching-on/off control mechanism Download PDFInfo
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- CN114068257B CN114068257B CN202010781710.8A CN202010781710A CN114068257B CN 114068257 B CN114068257 B CN 114068257B CN 202010781710 A CN202010781710 A CN 202010781710A CN 114068257 B CN114068257 B CN 114068257B
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- gear
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- worm
- switching
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- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 230000000903 blocking effect Effects 0.000 claims abstract description 22
- 239000004020 conductor Substances 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H2071/665—Power reset mechanisms the reset mechanism operating directly on the normal manual operator, e.g. electromagnet pushes manual release lever back into "ON" position
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- Lock And Its Accessories (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
The invention discloses a switching-on/off control mechanism, which comprises a driving motor with a worm, a controller handle assembly, a gear transmission mechanism and a tact switch, wherein the controller handle assembly at least comprises a controller handle and an elastic piece, the elastic piece rotates and toggles the tact switch at a switching-on position, and the driving motor is started; the worm is provided with a first sensing piece which is matched with the first sensor and used for controlling the rotation number of turns of the worm, and when the worm rotates for setting the number of turns, the controller handle assembly is switched from a closing position to a separating position; the controller handle assembly at least comprises a second sensing piece and a third sensing piece, and the travel distance between the second sensing piece and the third sensing piece is the switching travel of a switching-on position and a switching-off position; the gear transmission mechanism is provided with a blocking part, and the controller handle assembly further comprises a limiting boss which is propped against the blocking part when the brake is separated, so as to prevent the transmission of the gear transmission mechanism. The invention prevents false triggering, has high safety performance, and the switching-on position and the switching-off position are accurate and reliable.
Description
Technical Field
The invention belongs to the technical field of electrical switches, and particularly relates to a switching-on/off control mechanism.
Background
In order to realize remote reclosing control of the circuit breaker, a motor drives a gear to enable a handle to rotate to realize opening and closing, an inductive switch is arranged at the tail end of a gear transmission mechanism, and the control of an opening position and a closing position is realized through the cooperation of a sensor and the inductive switch on a circuit board. However, due to the structural limitation of the gear transmission mechanism, the cooperation of the inductive switch, the sensor and the gear transmission mechanism is not stable enough, and the inductive switch is influenced by an external magnetic field, so that false triggering is easy to occur, and the safety performance is low. In addition, only electronic control is not reliable enough, misoperation is easy to occur on a mechanical structure, and the safety performance is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the switching-on and switching-off control mechanism which is capable of being started only when the controller handle assembly is in a switching-on state, effectively avoiding false triggering, and has high safety performance and high switching-off and switching-on position switching accuracy.
The technical scheme adopted for solving the technical problems is as follows: the opening and closing control mechanism comprises a driving motor with a worm, a controller handle assembly with a closing position and a opening position, a gear transmission mechanism for transmission between the driving motor and the controller handle assembly, and a tact switch for controlling the opening and closing of the driving motor, wherein the controller handle assembly at least comprises a controller handle and an elastic piece capable of rotating along with the controller handle, and when the controller handle is at the closing position, the elastic piece rotates to stir the tact switch, and the driving motor is started; the worm is provided with a first induction piece which can be matched with the first sensor to control the rotation number of turns of the worm, and when the worm rotates for a set number of turns, the controller handle assembly is switched between a closing position and a separating position; the controller handle assembly at least comprises a second sensing piece which can be matched with the second sensor and a third sensing piece which can be matched with the third sensor, and the stroke distance between the second sensing piece and the third sensing piece is the switching stroke of a switching-on position and a switching-off position; the gear transmission mechanism is provided with a blocking part, and the controller handle assembly further comprises a limiting boss which can interfere with the blocking part, and the limiting boss is propped against the blocking part when the gear transmission mechanism is in the brake separating position and is used for preventing transmission of the gear transmission mechanism.
According to the invention, through the linkage of the driving motor and the tact switch, when the handle component of the controller is in a closing position, the circuit breaker can perform remote opening and closing and local opening and closing; when the controller handle assembly is at the opening position, the circuit breaker cannot conduct remote closing and local closing; according to the invention, the first induction piece is arranged on the worm and is matched with the first sensor on the circuit board to measure the rotation number of the worm, and the fixed rotation number is preset to correspond the rotation number to the position switching between the opening position and the closing position; the invention has both electronic control and mechanical control structures, so that the controller handle assembly is not switched on by remote misoperation when being in a switching-off position, and the safety performance is higher; the combination of the second sensing piece and the third sensing piece enables the switching between the switching-on position and the switching-off position to be more accurate.
Further, the controller handle assembly further comprises a rotating shaft connected with the controller handle and a rotating disc coaxially connected with the rotating shaft, the elastic piece is a torsion spring sleeved on the rotating shaft, and the controller handle is provided with a first protruding block capable of propping against one end of the torsion spring.
Further, the gear transmission mechanism comprises a terminal gear which is rotationally connected to the rotating shaft, a limit boss is arranged on one side, close to the terminal gear, of the controller handle, a first travel groove for the limit boss to circumferentially move is formed in the terminal gear, a blocking portion is arranged in the first travel groove, and when the brake is separated, the limit boss can abut against the blocking portion and is used for preventing transmission of the gear transmission mechanism. When the tact switch is in a damaged state, the blocking part on the back surface of the terminal gear and the limit boss of the controller handle enable the driving motor to not rotate the terminal gear, so that the terminal gear is prevented from continuing to rotate from the mechanical structure, further, the transmission of the gear transmission mechanism is prevented, and the circuit breaker is switched on.
Further, the gear transmission mechanism further comprises a first gear set, a second gear set and a third gear set which are matched with the worm; the first gear set comprises a first gear meshed with the worm and a second gear which is coaxially arranged with the first gear and has an outer diameter smaller than that of the first gear, the second gear set comprises a third gear meshed with the second gear and a fourth gear which is coaxially arranged with the third gear and has an outer diameter smaller than that of the third gear, the third gear set comprises a fifth gear meshed with the fourth gear and a sixth gear which is coaxially arranged with the fifth gear and has an outer diameter smaller than that of the fifth gear, and the sixth gear is meshed with the terminal gear. The cooperation of the multistage gears enables the transmission to be more stable and effective, the rotation stroke of the worm is enlarged, and the control of the closing position and the opening position is more accurate.
Further, the outer ring of the terminal gear comprises a tooth section and a circular slide, and the second sensing piece and the third sensing piece are arranged at two ends of the circular slide along the circumferential direction of the terminal gear. The design of tooth section and round sliding section also limits the switching stroke of separating brake position and closing brake position mechanically, and the conversion between separating brake position and closing brake position is more accurate.
Further, a first protrusion and a second protrusion are formed on the turntable at intervals, the terminal gear forms a second travel groove, and a first positioning protrusion capable of being abutted against the first protrusion and a second positioning protrusion capable of being abutted against the second protrusion are arranged in the second travel groove. The first bulge and the second bulge on the turntable are matched with the terminal gear, so that a mechanical double blocking effect is achieved, and the transmission blocking of the gear transmission mechanism is stable and effective.
Further, the worm is provided with a first area made of a magnetic conductive material and a second area made of a non-magnetic conductive material, and the first induction piece is arranged in the first area; the first region and the second region are symmetrically arranged along the radial direction of the worm. The first area is made of magnetic conductive materials, so that the first induction piece is located in a larger magnetic flux area, the magnetic flux in the second area is almost absent, the worm is more effectively matched with the first sensor, the external interference is smaller, the control of the number of rotation turns of the worm is more accurate, and the reliability is higher.
Further, the first sensing piece, the second sensing piece and the third sensing piece are permanent magnets, and the first sensor, the second sensor and the third sensor are Hall elements; or the first sensing piece, the second sensing piece and the third sensing piece are light emitting diodes, and the first sensor, the second sensor and the third sensor are gratings.
Further, the self-locking rod assembly is used for limiting the controller handle assembly to a closing position or to a separating position; the self-locking rod assembly comprises a self-locking rod which can be vertically inserted into the controller handle, a reset piece matched with the self-locking rod and an operating part for poking the self-locking rod to be separated from the controller handle. The controller handle rotates in the plane, and the direction of movement of the self-locking rod is perpendicular to the plane, and only the manual force applied in the perpendicular direction can be pulled out, and other touches can not cause misoperation, so that the safety performance is high.
Further, a first jack for the self-locking rod to extend into to limit the self-locking rod to be in a closing position and a second jack for the self-locking rod to extend into to limit the self-locking rod to be in a separating position are formed on the controller handle, and the inner diameters and the depths of the first jack and the second jack are matched with the self-locking rod. The internal diameter of first jack and second jack and the external diameter adaptation of self-locking lever, the degree of depth of first jack and second jack and the length adaptation of self-locking lever avoid the self-locking lever to rock at will, and the cooperation structure is more firm.
The beneficial effects of the invention are as follows: 1) The controller handle assembly is positioned at the opening position, the tact switch powered by the driving motor is positioned at the opening position, the tripping shaft enables the lock catch of the circuit breaker to be positioned at the opening position all the time, and the circuit breaker cannot conduct remote closing and local closing, so that false triggering is prevented; 2) When the tact switch is in a damaged state, the blocking part on the back surface of the terminal gear and the limit boss of the controller handle enable the motor to not rotate the gear to enable the breaker to be switched on, the reset rod needs to be pressed firstly when the controller handle is switched on, remote electronic control and mechanical structure control are combined, when the controller handle assembly is in a switching-off position, the gear transmission mechanism cannot be triggered and transmitted by mistake, and the safety performance is high; 3) The front surface of the terminal gear forms a limit structure matched with the rotary table, the back surface of the terminal gear forms a limit structure matched with the handle of the controller, and the structure of the mechanical lock at the opening position is stable and effective; 4) The first sensing piece is arranged on the worm, so that the number of turns of the worm is more and the controllability is higher than that of the case that the sensing piece is arranged on the gear transmission mechanism only; 5) The rotation number of the worm is more, the rotation speed can be controlled to be reduced when the worm approaches to the set rotation number, the gear of the gear transmission mechanism is prevented from being blocked due to excessive rotation, and the service life is long; 6) The second sensing piece and the third sensing piece are arranged on the controller handle assembly and used for judging whether the switching-on position and the switching-off position are in place or not, the second sensing piece and the first sensing piece are matched, and switching-on position and switching-off position are more accurate and reliable; 7) The worm is designed to be a first area made of a magnetic conductive material and a second area made of a non-magnetic conductive material, so that the worm is less interfered by the outside, and the switching-on position and the switching-off position are more accurate to switch; 8) The electronic control and the mechanical control are combined, so that when the controller handle assembly is in the opening position, the gear transmission mechanism is not triggered and transmitted by mistake, and the safety performance is higher; 9) The front of the terminal gear forms a limit structure matched with the rotary table, the back of the terminal gear forms a limit structure matched with the controller handle, and the mechanical locking is stable in structure and effective in the opening position.
Drawings
Fig. 1 is a perspective view of a circuit breaker of the present invention.
Fig. 2 is a schematic diagram of the mating structure of the circuit breaker module and the controller module of the present invention.
Fig. 3 is a perspective view of the opening and closing control mechanism of the present invention mated with a circuit breaker trip assembly.
Fig. 4 is a second perspective view of the engagement of the opening and closing control mechanism of the present invention with the circuit breaker trip assembly.
Fig. 5 is a front view of the opening and closing control mechanism of the present invention mated with a circuit breaker trip assembly.
Fig. 6 is a second front view of the engagement of the opening and closing control mechanism of the present invention with the circuit breaker trip assembly.
Fig. 7 is an enlarged view of the structure at B in fig. 6.
Fig. 8 is a side view of the structure at B in fig. 6.
Fig. 9 is a cross-sectional view A-A of fig. 8.
Fig. 10 is a perspective view of the mating structure of the handle assembly portion and the final gear of the controller of the present invention.
FIG. 11 is an exploded view of the mating structure of the handle assembly portion and the final gear of the controller of the present invention.
FIG. 12 is an exploded view of the mating structure of the handle assembly portion and the final gear of the controller of the present invention.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will make clear and complete descriptions of the technical solutions of the embodiments of the present invention with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
As shown in fig. 1-2, a circuit breaker comprises a collector module 5, a controller module 6 and a circuit breaker module 7 arranged side by side with the controller module 6, wherein the collector module 5 is arranged on one side of the circuit breaker module 7 and one side of the controller module 6, and the controller module 7 comprises a switching-on/switching-off control mechanism.
As shown in fig. 3-12, the opening and closing control mechanism comprises a driving motor 1 with a worm 2, a gear transmission mechanism 3 in transmission fit with the worm 2, a controller handle assembly 4, a tact switch 9 for controlling the opening and closing of the driving motor 1, and a self-locking rod assembly 8, wherein the controller handle assembly 4 is used for controlling the switching between a closing position and an opening position.
The gear transmission mechanism 3 includes a first gear set 31 engaged with the worm 2, a second gear set 32 engaged with the first gear set 31, a third gear set 33 engaged with the second gear set 32, and a final gear 34 coaxially connected with the controller handle assembly 4.
The first gear set 31 includes a first gear 311 engaged with the worm 2 and a second gear 312 coaxially connected with the first gear 311 and having an outer diameter smaller than that of the first gear 311, the second gear set 32 includes a third gear 321 engaged with the second gear 312 and a fourth gear 322 coaxially arranged with the third gear 321 and having an outer diameter smaller than that of the third gear 321, the third gear set 33 includes a fifth gear 331 engaged with the fourth gear 322 and a sixth gear 332 coaxially arranged with the fifth gear 331 and having an outer diameter smaller than that of the fifth gear 331, the sixth gear 332 is engaged with the terminal gear 34, and the terminal gear 34 and the controller handle assembly 4 are coaxially connected.
The controller handle assembly 4 comprises a controller handle 43, a rotating shaft 44 connected with the controller handle 43, a rotary table 45 coaxially connected with the rotating shaft 44, and an elastic member 47 sleeved on the rotating shaft 44 and capable of synchronously rotating along with the controller handle 43, wherein the rotary table 45 is connected at the front end of the rotating shaft 44, a first protrusion 451 and a second protrusion 452 are arranged at intervals, and the first protrusion 451 and the second protrusion 452 are formed by protruding from the periphery of the rotary table 45 in the radial direction. The terminal gear 34 is connected to the rotating shaft 44 and is located between the controller handle 43 and the turntable 45, the back surface of the terminal gear 34 facing the side of the controller handle 43 is recessed to form a first annular travel groove 341, a blocking portion 35 extending in the radial direction is formed in the first travel groove 341, and the blocking portion 35 blocks the first travel groove 341 into a C-shaped groove. The front surface of the controller handle 43 facing the side of the terminal gear 34 is provided with a limit boss 46, and the limit boss 46 protrudes from the front surface of the controller handle 43 and falls into the first travel groove 341 to perform circumferential movement.
Therefore, when the controller handle 43 is in the opening position, the blocking part 35 on the terminal gear 34 is abutted against the limiting boss 46 to generate interference, so that the terminal gear 34 cannot continue to rotate, namely, the transmission of the gear transmission mechanism 3 is prevented, and the opening position is ensured in the mechanical structure.
The terminal gear 34 is recessed towards the front surface of the turntable 45 to form a second annular travel groove 342, a first positioning convex part 343 and a second positioning convex part 344 extending along the radial direction are formed in the second travel groove 342, the first positioning convex part 343 and the second positioning convex part 344 are symmetrically arranged, and the second travel groove 342 is blocked into two C-shaped grooves with the same travel; the portion of the first projection 451 that falls into the second travel groove 342 performs circumferential movement, and the other portion of the second projection 452 that falls into the second travel groove 342 performs circumferential movement.
Because the turntable 45 rotates synchronously with the rotating shaft 44, when the controller handle 43 is at the opening position, the rotating shaft 44 does not rotate, the turntable 45 stops rotating, the first protrusion 451 abuts against the first positioning protrusion 343 to generate interference, the second protrusion 452 abuts against the second positioning protrusion 344 to generate interference, or the first protrusion 451 abuts against the second positioning protrusion 344 to generate interference, so that the terminal gear 34 cannot rotate continuously, that is, the blocking part 35 and the limiting boss 46 are matched, transmission of the gear transmission mechanism 3 is prevented, and the opening position is also ensured in mechanical structure.
The outer ring of the terminal gear 34 comprises a tooth segment 345 with a plurality of teeth and a smooth circular segment 346, the front of the two ends of the circular segment 346 is connected with a second sensing piece 41 and a third sensing piece 42, the second sensing piece 41 can be matched with a second sensor on the circuit board, the third sensing piece 42 can be matched with a third sensor on the circuit board, and the distance between the second sensing piece 41 and the third sensing piece 42 is the switching stroke between a closing position and a separating position, and the distance is not a straight line distance but an arc distance of a rotating stroke.
In order to more accurately control the switching between the switching-on position and the switching-off position, the driving motor 1 drives the worm 2 to rotate, a first sensor 21 is fixedly connected to the worm 2, a circuit board of the controller module 6 is connected with a first sensor which can be matched with the first sensor 21, the rotating speed of the driving motor 1 is measured by the first sensor and the first sensor 21, the number of turns required for switching-off, switching-on and restoring to the original point rotation of the driving motor 1 each time is set, and whether the controller handle assembly 4 is switched on and switched off in place or not is determined, and whether the original point position is restored or not is determined.
In order to control the rotation number of the worm 2 more accurately, the worm 2 is symmetrically provided with a first area 22 and a second area 23 along the radial direction, namely, the worm 2 is divided into two parts along the central longitudinal direction, the left part is the first area 22, the left part is made of magnetic conductive materials, the right part is the second area 23, the second part is made of non-magnetic conductive materials, and the first sensing piece 21 is fixedly connected with the first area 22 made of the magnetic conductive materials; therefore, the magnetic flux of the area where the first induction piece 21 is located is larger, and the first sensor and the first induction piece 21 are matched to determine the transmission circle number of the worm 2 more accurately.
Therefore, on the premise that the first sensing piece 21 and the first sensor cooperate to control the rotation number of the worm 2, when the controller handle assembly 4 is used for poking to the closing position or the opening position, the second sensing piece 41 cooperates with the second sensor, and the third sensing piece 42 cooperates with the third sensor, so that the closing position and the opening position are positioned more accurately.
The first sensing element 21, the second sensing element 41 and the third sensing element 42 are permanent magnets, and the first sensor, the second sensor and the third sensor are hall elements; alternatively, the first sensing element 21, the second sensing element 41 and the third sensing element 42 are light emitting diodes, and the first sensor, the second sensor and the third sensor are gratings.
In this embodiment, the elastic member 47 is a torsion spring, one end of the torsion spring abuts against the first bump 48, and the first bump 48 protrudes from the back of the controller handle 43. When the controller handle 43 rotates to a closing position, the elastic piece 47 is abutted against the tact switch 9 along with the rotation of one end of the controller handle 43, namely the elastic piece 47 toggles the tact switch 9, the driving motor 1 is started, and at the moment, the breaker module 7 can realize remote control of opening or closing; when the controller handle 43 rotates reversely to the opening position, the elastic piece 47 is separated from the tact switch 9 along with the rotation of the controller handle 43, the driving motor 1 is turned off, and at this time, the breaker module 7 cannot realize remote control opening or closing.
The self-locking rod assembly 8 is used for limiting the controller handle assembly 4 to stay in the closing position when the controller handle assembly is switched to the closing position, and limiting the controller handle assembly 4 to stay in the opening position when the controller handle assembly is switched from the closing position to the opening position, so that the multiple locking protection effect is achieved. The self-locking rod assembly 8 comprises a self-locking rod 81 which can be vertically inserted into the controller handle 43, a reset piece 82 sleeved in the self-locking rod 81, and an operation part 83 which is connected with the self-locking rod 81 and used for pulling the self-locking rod 81 out of the controller handle 43, wherein one end of the reset piece 82 is a spring, and the other end of the reset piece is abutted against the inner end surface of the self-locking rod 81; correspondingly, a first insertion hole 431 and a second insertion hole 432, the inner diameter of which is matched with the outer diameter of the self-locking lever 81, are formed on the controller handle 43.
When the controller handle 43 rotates to the closing position, the end part of the self-locking rod 81 vertically falls into the first jack 431 against the side surface of the controller handle 43, so that the controller handle 43 cannot continue to rotate, namely, the controller handle assembly 4 is firmly limited to the closing position; the self-locking rod 81 is manually applied to toggle the self-locking rod 81 to be separated from the controller handle 43, the controller handle 43 can be rotated to be switched to the opening position, and when the controller handle 43 is rotated to the opening position, the self-locking rod 81 vertically falls into the second jack 432, so that the controller handle 43 cannot continue to rotate, namely, the controller handle assembly 4 is firmly limited to the opening position.
The circuit breaker further comprises a trip assembly 10 comprising a trip bar 101, a reset bar 102, a trip shaft 103 cooperating with the latch 71 of the circuit breaker module 6, and a solenoid valve 104 connected to the trip bar 101; the trip lever 101 is rotatably connected with the housing 61 of the controller module 6, as shown in fig. 5, the trip lever 101 includes a first segment 105, a second segment 106 disposed at an included angle with the first segment 105, and a hook segment 107 connected to a side of the second segment 106 away from the first segment 105, where the hook segment 107 and the second segment 106 enclose a central rotation axis of the fifth gear 331, and the tact switch 9 and the hook segment 107 are disposed opposite to each other, in other words, the tact switch 9 is disposed at a notch of an enclosed area of the hook segment 107 and the second segment 106 and corresponds to a position of the fifth gear 331.
To effect the interlocking of the trip assembly 10 and the controller handle assembly 4, a second tab 433 is formed on the back of the controller handle 43 and the end of the hooked segment 107 abuts the second tab 433.
The trip rod 101 is connected with the reset rod 102 in a matching manner, specifically, a groove 108 is formed at the upper side of one end of the first section 105 connected with the electromagnetic valve 104, correspondingly, a concave part matched with the groove 108 is formed at the lower end of the reset rod 102, a convex column is vertically formed at the concave part, a through hole 109 is formed in the groove 108, and the convex column can vertically extend into the through hole 109 to realize connection between the reset rod 102 and the trip rod 101. In order to make the trip lever 101 lift smoothly upwards, which is free from the magnetic force of the solenoid valve 104, a tension spring 100 is also connected to the trip lever 101, one end of the tension spring 100 being connected to the housing 61 of the control module 6.
The switching-on working process of the invention is that, when the controller handle assembly 4 is at the switching-off position in the initial position, the driving motor 1 is started, after the set number of turns is rotated, the second sensing piece 41 and the third sensing piece 42 are matched to judge whether the switching-on is in place, and the driving motor 1 stops rotating because the set number of turns is matched with the distance between the second sensing piece 41 and the third sensing piece 42, and the controller handle assembly 4 is just at the switching-on position; the driving motor 1 rotates reversely to set the number of turns to the origin position.
Meanwhile, the blocking part 35 on the terminal gear 34 is abutted against the limit boss 46 on the controller handle 43 to generate interference, so that the terminal gear 34 cannot continue to rotate; the first positioning convex part 343 and the second positioning convex part 344 on the terminal gear 34 respectively offset with the first protrusion 451 and the second protrusion 452 on the turntable 45 to generate interference, so that the transmission of the gear transmission mechanism 3 is prevented, the controller handle assembly 4 is ensured to be in the opening position from the mechanical structure, and the remote misoperation is effectively prevented.
In the opening working process of the invention, when the elastic piece 47 presses the tact switch 9 in the initial position, the controller handle assembly 4 is in the closing position, the driving motor 1 is started, after the set number of turns is rotated, the second sensing piece 41 and the third sensing piece 42 are matched to judge whether the closing is in place, the driving motor 1 stops rotating because the set number of turns is matched with the distance between the second sensing piece 41 and the third sensing piece 42, at the moment, the controller handle assembly 4 is just in the opening position, the self-locking rod 81 falls into the second jack 432, the controller handle assembly 4 is limited in the opening position, and the elastic piece 47 is separated from the tact switch 9; the driving motor 1 rotates reversely to set the number of turns to the origin position.
Meanwhile, the blocking part 35 on the terminal gear 34 is abutted against the limit boss 46 on the controller handle 43 to generate interference, so that the terminal gear 34 cannot continue to rotate; the first positioning convex part 343 and the second positioning convex part 344 on the terminal gear 34 respectively offset with the first protrusion 451 and the second protrusion 452 on the turntable 45 to generate interference, so that the transmission of the gear transmission mechanism 3 is prevented, the controller handle assembly 4 is ensured to be in the opening position from the mechanical structure, and the remote misoperation is effectively prevented.
The foregoing detailed description is provided to illustrate the present invention and not to limit the invention, and any modifications and changes made to the present invention within the spirit of the present invention and the scope of the appended claims fall within the scope of the present invention.
Claims (6)
1. The utility model provides a divide-shut brake control mechanism, includes driving motor (1) with worm (2), has controller handle subassembly (4) of closing a floodgate position and separating brake position to and be used for driving motor (1) and controller handle subassembly (4) between driven gear train (3), its characterized in that: the controller is characterized by further comprising a tact switch (9) for controlling the driving motor (1) to be started and stopped, wherein the controller handle assembly (4) at least comprises a controller handle (43) and an elastic piece (47) rotating along with the controller handle (43), and when the controller handle is in a closing position, the elastic piece (47) rotates to stir the tact switch (9), and the driving motor (1) is started; the worm (2) is provided with a first induction piece (21), the first induction piece (21) is matched with the first sensor to control the rotation number of turns of the worm (2), and when the worm (2) rotates for a set number of turns, the controller handle assembly (4) is switched between a self-closing position and a self-opening position; the controller handle assembly (4) at least comprises a second sensing piece (41) matched with the second sensor and a third sensing piece (42) matched with the third sensor, and the stroke distance between the second sensing piece (41) and the third sensing piece (42) is the switching stroke of a switching-on position and a switching-off position; the gear transmission mechanism (3) is provided with a blocking part (35), the controller handle assembly (4) further comprises a limiting boss (46) which can interfere with the blocking part (35), and the limiting boss (46) is propped against the blocking part (35) when the gear transmission mechanism (3) is in a brake separating position and is used for preventing transmission of the gear transmission mechanism; the first sensing piece (21), the second sensing piece (41) and the third sensing piece (42) are light emitting diodes, and the first sensor, the second sensor and the third sensor are gratings; the controller handle assembly (4) further comprises a rotating shaft (44) connected with the controller handle (43) and a rotary table (45) coaxially connected with the rotating shaft (44), the elastic piece (47) is a torsion spring sleeved on the rotating shaft (44), and the controller handle (43) is provided with a first lug (48) propped against one end of the torsion spring; the gear transmission mechanism (3) comprises a terminal gear (34) rotatably connected to a rotating shaft (44), a limit boss (46) is arranged on one side, close to the terminal gear (34), of the controller handle (43), the terminal gear (34) forms a first travel groove (341) for the limit boss (46) to circumferentially move, a blocking part (35) is arranged in the first travel groove (341), and when the gear transmission mechanism is in a brake separating position, the limit boss (46) abuts against the blocking part (35) and is used for preventing transmission of the gear transmission mechanism (3); first protrusions (451) and second protrusions (452) are formed on the turntable (45) at intervals, the terminal gear (34) forms a second travel groove (342), and a first positioning protrusion (343) capable of abutting against the first protrusions (451) and a second positioning protrusion (344) capable of abutting against the second protrusions (452) are arranged in the second travel groove (342).
2. The opening and closing control mechanism according to claim 1, wherein: the gear transmission mechanism (3) further comprises a first gear set (31), a second gear set (32) and a third gear set (33) which are matched with the worm (2); the first gear set (31) comprises a first gear (311) meshed with the worm (2) and a second gear (312) coaxially arranged with the first gear (311) and having an outer diameter smaller than that of the first gear (311), the second gear set (32) comprises a third gear (321) meshed with the second gear (312) and a fourth gear (322) coaxially arranged with the third gear (321) and having an outer diameter smaller than that of the third gear (321), the third gear set (33) comprises a fifth gear (331) meshed with the fourth gear (322) and a sixth gear (332) coaxially arranged with the fifth gear (331) and having an outer diameter smaller than that of the fifth gear (331), and the sixth gear (332) is meshed with the terminal gear (34).
3. The opening and closing control mechanism according to claim 1, wherein: the outer ring of the terminal gear (34) comprises a tooth section (345) and a circular slide section (346), and the second sensing piece (41) and the third sensing piece (42) are arranged at two ends of the circular slide section (346) along the circumferential direction of the terminal gear (34).
4. The opening and closing control mechanism according to claim 1, wherein: the worm (2) is provided with a first area (22) made of magnetic conductive material and a second area (23) made of non-magnetic conductive material, and the first induction piece (21) is arranged in the first area (22); the first region (22) and the second region (23) are symmetrically arranged along the radial direction of the worm (2).
5. The opening and closing control mechanism according to claim 1, wherein: the self-locking rod assembly (8) is used for limiting the controller handle assembly (4) to a closing position or to a separating position; the self-locking rod assembly (8) comprises a self-locking rod (81) which can be vertically inserted into the controller handle (43), a reset piece (82) matched with the self-locking rod (81), and
an operation part (83) for pulling the self-locking rod (81) to be separated from the controller handle (43).
6. The opening and closing control mechanism according to claim 5, wherein: the controller handle (43) is provided with a first jack (431) for the self-locking rod (81) to extend into to limit the self-locking rod to be in a closing position and a second jack (432) for the self-locking rod (81) to extend into to limit the self-locking rod to be in a separating position, and the inner diameters and the depths of the first jack (431) and the second jack (432) are matched with the self-locking rod (81).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781710.8A CN114068257B (en) | 2020-08-06 | 2020-08-06 | Switching-on/off control mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781710.8A CN114068257B (en) | 2020-08-06 | 2020-08-06 | Switching-on/off control mechanism |
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| CN114068257A CN114068257A (en) | 2022-02-18 |
| CN114068257B true CN114068257B (en) | 2023-10-31 |
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| CN202010781710.8A Active CN114068257B (en) | 2020-08-06 | 2020-08-06 | Switching-on/off control mechanism |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185405Y (en) * | 2008-04-17 | 2009-01-21 | 沈阳工业大学 | Digital servo control apparatus of electric machine operation mechanism for high-voltage circuit-breaker |
| CN106847636A (en) * | 2017-04-05 | 2017-06-13 | 欧迪森电气有限公司 | A kind of electric switch-on mechanism of miniature circuit breaker |
| CN208706553U (en) * | 2018-05-30 | 2019-04-05 | 安德利集团有限公司 | A kind of autoreclose breaker |
-
2020
- 2020-08-06 CN CN202010781710.8A patent/CN114068257B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185405Y (en) * | 2008-04-17 | 2009-01-21 | 沈阳工业大学 | Digital servo control apparatus of electric machine operation mechanism for high-voltage circuit-breaker |
| CN106847636A (en) * | 2017-04-05 | 2017-06-13 | 欧迪森电气有限公司 | A kind of electric switch-on mechanism of miniature circuit breaker |
| CN208706553U (en) * | 2018-05-30 | 2019-04-05 | 安德利集团有限公司 | A kind of autoreclose breaker |
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| CN114068257A (en) | 2022-02-18 |
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