CN218241741U - Modular operating mechanism and circuit breaker - Google Patents
Modular operating mechanism and circuit breaker Download PDFInfo
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- CN218241741U CN218241741U CN202122266400.5U CN202122266400U CN218241741U CN 218241741 U CN218241741 U CN 218241741U CN 202122266400 U CN202122266400 U CN 202122266400U CN 218241741 U CN218241741 U CN 218241741U
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Abstract
The utility model relates to the technical field of circuit breakers, in particular to a modular operating mechanism and a circuit breaker, wherein the operating mechanism comprises two opposite and spaced side plates; the energy storage mechanism, the opening mechanism, the closing mechanism and the five-connecting-rod structure are arranged, and an energy storage spring stores energy during energy storage operation; the five-connecting-rod structure is resisted with the cam mechanism by the counterforce of the opening spring, and the five-connecting-rod structure and the opening lock catch plate are limited by the opening half shaft; during switching-on operation, the switching-on half shaft is driven by external force to rotate, the switching-on locking plate rotates, the output connecting lever drives the five-link structure to move to complete switching-on operation, and the cam mechanism rotates to a non-energy-storage position under the energy releasing action of the energy storage spring; after the switch is switched on in place, the cam mechanism rotates to an energy storage position; during the operation of separating brake, the separating brake semi-axis receives external force drive to rotate, and the separating brake hasp board receives the pulling force of separating brake hasp board extension spring to rotate towards the antiport, until five-bar linkage structure butt on the cam mechanism of energy storage position. The moment required by the cam mechanism is greatly reduced, and the service life of the operating mechanism is prolonged.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a modularization operating device and circuit breaker.
Background
A circuit breaker (english name: circuit-breaker) refers to a switching device capable of closing, carrying, and breaking a current under a normal loop condition. In the field of power transmission, circuit breakers are used in a very wide variety of applications. The energy storage and opening and closing operation of the circuit breaker are realized through the operating mechanism of the circuit breaker.
The operating mechanism of the existing circuit breaker is generally an energy storage type operating mechanism. After the mechanism is switched on, the energy of the energy storage spring is released, the energy storage connecting lever is separated from the energy storage auxiliary switch, and the energy storage motor drives the operating shaft to rotate through a series of actions, so that the energy storage spring starts to store energy again until the energy storage connecting lever is matched with the energy storage auxiliary switch. However, in the existing operating mechanism, the cam and the output crank arm are not connected in the operating process, and the moment of the cam needs to be very large during closing, so that the whole service life of the mechanism is short.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the coating and the output connecting lever of the energy storage type operating mechanism among the prior art and not connecting in operation process, moment needs very big when closing a floodgate, leads to the problem that the whole life-span of mechanism is short, and the modularization operating mechanism who provides and have this modularization operating mechanism's circuit breaker.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an object of the utility model is to provide a modularization operating device, include:
the two side plates are oppositely arranged at intervals, and an installation space is formed between the two side plates at intervals;
the energy storage mechanism comprises an energy storage driving mechanism, an energy storage transmission mechanism connected with the energy storage driving mechanism, a cam mechanism connected with the energy storage transmission mechanism and an energy storage spring in transmission connection with the cam mechanism, and the cam mechanism can be rotationally switched with the non-energy storage device at an energy storage position;
the closing mechanism comprises a closing half shaft, a closing lock plate and a closing torsion spring, the closing half shaft is rotationally arranged between the two side plates under the drive of external force, and the closing torsion spring is suitable for applying the biasing force rotating towards the closing direction to the closing lock plate;
the brake separating mechanism comprises a brake separating half shaft, a brake separating lock catch plate tension spring and a brake separating spring, wherein the brake separating half shaft is driven by external force to be rotatably arranged between the two side plates, and the brake separating lock catch plate tension spring applies biasing force opposite to the closing direction to the brake separating lock catch plate;
the five-connecting-rod structure is connected with the opening lock catch plate, the output connecting lever and an external circuit breaker and is always contacted with the cam mechanism;
during energy storage operation, the energy storage driving mechanism drives the gear transmission mechanism to drive the energy storage spring to store energy; when the five-link structure is at the energy storage position, the five-link structure is resisted with the cam mechanism by the counterforce of the opening spring, and part of the five-link structure and the opening lock catch plate are limited by the opening half shaft to keep in an opening state;
during switching-on operation, the switching-on half shaft is driven to rotate by external force, the switching-on locking plate rotates to abut against the output connecting lever under the action of biasing force of the switching-on torsion spring, the cam mechanism rotates to a non-energy-storage position under the action of energy release of the energy storage spring, and meanwhile, the five-connecting-rod structure drives the output connecting lever to move to complete switching-on operation;
after the switch is closed in place, the energy storage mechanism is started, and the cam mechanism rotates to the energy storage position again;
during the operation of separating brake, the separating brake semi-axis receives external force drive to rotate, separating brake hasp board receives the pulling force orientation of separating brake hasp board extension spring rotates with the opposite direction of combined floodgate direction, until five-bar linkage structure butt is on the cam mechanism of energy storage position.
Optionally, in the modular operating mechanism, the five-link structure may be switched between a first state of a closing state and a second state of an opening state;
the energy storage mechanism can be switched between a non-energy storage position and an energy storage position in a first state, and is in an energy storage position in a second state;
when the energy storage position is in a first state, the five-connecting-rod structure is abutted against the first position of the cam mechanism; when the energy storage device is in a non-energy storage position in a first state, the five-connecting-rod structure is abutted against a second position of the cam mechanism;
and when the energy storage position is in the second state, the five-connecting-rod structure is propped against the third position of the cam mechanism.
Optionally, in the modular operating mechanism, the five-bar linkage structure includes a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate and a fifth connecting plate, which are hinged to each other;
one end of the first connecting plate is fixed, the other end of the first connecting plate is hinged with the second connecting plate and the third connecting plate, one end of a separating brake lock catch plate tension spring is fixed on the first connecting plate, and the other end of the separating brake lock catch plate tension spring is fixed on the separating brake lock catch plate;
one end of the second connecting plate is hinged with the first connecting plate and the third connecting plate, and the other end of the second connecting plate is hinged with the opening lock catch plate;
one end of the third connecting plate is hinged with the first connecting plate and the second connecting plate respectively;
one end of the fourth connecting plate is hinged with the other end of the third connecting plate, the other end of the fourth connecting plate is hinged with an output connecting lever, the output connecting lever is connected with an AC phase connecting lever through an output square shaft, a pulley is arranged at the hinged position of the fourth connecting plate and the third connecting plate, and the pulley is always in sliding butt joint with the cam mechanism;
one end of the fifth connecting plate is hinged with the AC phase connecting lever, the other end of the fifth connecting plate is hinged with a closing connecting lever, the closing connecting lever is connected with an external circuit breaker through a connecting square shaft, and the opening spring is connected to the closing connecting lever;
the five-connecting-rod structure is characterized in that the first connecting plate and the third connecting plate, the third connecting plate and the fourth connecting plate form a first included angle in a first state, the first connecting plate and the third connecting plate, the third connecting plate and the fourth connecting plate form a second included angle smaller than the first included angle in a second state, and the first included angle and the second included angle are obtuse angles.
Optionally, the modular operating mechanism, the cam mechanism includes:
the cam shaft is arranged between the two side plates;
the cam is sleeved on the cam shaft, is far away from the energy storage spring and is provided with a limiting wheel;
the ratchet wheel and pawl mechanism comprises a ratchet wheel and a pawl, the ratchet wheel and the pawl are coaxially sleeved on the cam shaft, the pawl is arranged on an output gear of the gear transmission mechanism, and a notch capable of being engaged with the pawl is formed in the peripheral wall of the ratchet wheel;
the side plate close to the pawl is provided with a catch wheel, during energy storage operation, the energy storage driving mechanism drives the gear transmission mechanism to drive the ratchet wheel and pawl mechanism to be jointed so as to drive the cam shaft to rotate to drive the energy storage spring to store energy, the energy storage motor or the handle is stopped to drive, the pawl is blocked by the catch wheel and is separated from the ratchet wheel, the energy storage spring continuously drives the energy storage shaft to rotate until the limiting wheel is contacted with the closing lock catch plate, the closing lock catch plate is limited by the closing half shaft to stop the energy storage shaft, and the cam is in an energy storage position.
Optionally, the modular operating mechanism, the energy storage spring is connected to the camshaft through an energy storage crank arm, and the energy storage mechanism further includes:
the pressing plate is rotatably arranged on the outer side of the side plate and abuts against the energy storage connecting lever;
the travel switch is electrically connected with the energy storage motor;
in the energy storage process, the energy storage connecting lever abuts against the pressure plate, so that the pressure plate rotates towards the direction of the travel switch until the travel switch is triggered to turn off the energy storage motor.
Optionally, in the modular operating mechanism, the cam is enclosed by an arc edge and an S-shaped curved edge;
the first position and the second position are respectively arranged at two ends of the arc edge; the third location is on the S-shaped curved edge.
Optionally, the modular operating mechanism, the energy storage driving mechanism includes:
the energy storage shaft is arranged between the two side plates;
the electric energy storage driving mechanism comprises an energy storage motor arranged outside one side plate, the driving end of the energy storage motor is connected with the energy storage shaft, and the energy storage motor drives the energy storage shaft to rotate and drives the gear transmission mechanism to transmit, so that electric energy storage is realized;
manual energy storage actuating mechanism, it includes worm gear mechanism, sets up handle on the worm and with the clutch who connects of energy storage axle, handle drive worm drives the worm wheel and rotates and pass through clutch drives the energy storage axle rotates, thereby drives gear drive mechanism transmission to realize manual energy storage.
Optionally, the modular operating mechanism, the clutch device is a one-way bearing sleeved on the energy storage shaft.
Optionally, the modular operating mechanism, the gear transmission mechanism includes:
the pinion is an input gear, is sleeved on the energy storage shaft and can be driven to rotate during electric energy storage or manual energy storage;
the large gear is an output gear, is sleeved on a cam shaft of the cam mechanism and is meshed with the small gear, and the energy storage spring is in transmission connection with the cam shaft through an energy storage crank arm.
Another object of the present invention is to provide a circuit breaker, including any of the above modular operating mechanisms.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a modularization operating device, five-bar linkage structure offsets with cam mechanism all the time, that is to say when the energy storage position of separating brake state, five-bar linkage structure atress offsets with cam mechanism, when combined floodgate operation, the combined floodgate semi-axis receives external force to rotate, combined floodgate hasp board is rotatory to offset with the last fender axle of output connecting lever by the effect of spacing wheel and combined floodgate torsional spring, the indication becomes combined floodgate instruction of separating brake, cam mechanism receives energy storage spring's release effect to rotate, because separating brake hasp board and partial five-bar linkage structure are limited by separating brake semi-axis, the part that five-bar linkage structure and cam mechanism offseted drives output connecting lever and rotates, output connecting lever and then drives insulating pull rod through the output square shaft and upwards accomplish the combined floodgate, the vacuum tube circular telegram. That is to say, compare and not be connected between current cam mechanism and the output turning arm, the utility model discloses an operating device, cam mechanism all the time with five-bar linkage structure butt, five-bar linkage structure is connected with the output turning arm again, that is to say cam mechanism is connected with five-bar linkage structure all the time, and the required moment of cam mechanism obtains reducing greatly in combined floodgate operation process, can improve whole operating device's life, and the performance is more stable, reliable moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a modular operating mechanism according to an embodiment of the present invention;
fig. 2 is a schematic front view of the modular operating mechanism in the embodiment of the present invention;
fig. 3 is a schematic side view of a modular actuator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram (open state) of the gear transmission mechanism of the modular operating mechanism in the embodiment of the present invention, in which one side plate is omitted;
FIG. 5 isbase:Sub>A schematic sectional view taken along line A-A of the modular operating mechanism of FIG. 2 (with energy stored in an open state);
fig. 6 is a schematic structural view of the circuit breaker assembly according to embodiment 2 of the present invention (the operating mechanism is not cut and in the opening state, and the cam is in the energy storage position);
FIG. 7 isbase:Sub>A sectional view of the operating mechanism A-A of the circuit breaker;
fig. 8 is a schematic structural diagram (closing state) of the modular operating mechanism in the embodiment of the present invention, in which one of the side plate gear transmission mechanisms is omitted;
fig. 9 is a schematic sectional view of the modular operating mechanism from a-a direction in the embodiment of the present invention (the switch-on state is not stored with energy);
fig. 10 is a schematic sectional view of the modular operating mechanism in an embodiment of the present invention from B-B (closed state and cam in energy storage position);
fig. 11 is a schematic structural view of the circuit breaker assembly according to embodiment 2 of the present invention (the operating mechanism is not cut and is in a closing state, and the cam is in an energy-accumulation-free position);
fig. 12 isbase:Sub>A schematic sectional view of the operating mechanismbase:Sub>A-base:Sub>A of the circuit breaker.
Description of the reference numerals:
1. a side plate; 2. an energy storage drive mechanism; 21. an electric energy storage drive mechanism; 211. an energy storage motor; 22. A manual energy storage driving mechanism; 221. a handle; 222. a worm; 223. a worm gear; 224. a clutch device; 23. an energy storage shaft; 3. a gear transmission mechanism; 31. a pinion gear; 32. a bull gear; 4. a cam mechanism; 41. a cam; 410. a limiting wheel; 42. a camshaft; 43. a ratchet wheel; 44. a pawl; 5. an energy storage spring; 51. an energy storage spring body; 52. an energy storage crank arm; 53. a spring hanging plate; 6. a closing mechanism; 61. A closing locking plate; 62. a switching-on half shaft; 63. closing a torsion spring; 7. a brake separating mechanism 71 and a brake separating lock catch plate; 72. a brake-separating half shaft; 73. a brake separating lock catch plate tension spring; 74. a brake separating spring; 8. a five-bar linkage structure; 80. a pulley; 81. a first connecting plate; 82. a second connecting plate; 83. a third connecting plate; 84. a fourth connecting plate; 85. a fifth connecting plate; 9. a closing coil; 10. a brake separating coil; 11. an output crank arm; 12. outputting a square shaft; 121. a blocking shaft; 13. pressing a plate; 14. a travel switch; 15. an AC phase crank arm; 16. a switching-on crank arm; 17. connecting a square shaft; 18. an insulating pull rod; 19. a counter.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 12, a modular operating mechanism of the present embodiment includes two side plates 1, an energy storage mechanism, a closing mechanism 6, an opening mechanism 7, and a five-bar linkage structure 8. Wherein, the two side plates 1 are arranged oppositely and at intervals, and the interval between the two side plates 1 forms an installation space. The energy storage mechanism comprises an energy storage driving mechanism 2, an energy storage transmission mechanism connected with the energy storage driving mechanism 2, a cam mechanism 4 connected with the energy storage transmission mechanism and an energy storage spring 5 in transmission connection with the cam mechanism 4, and the cam mechanism 4 can be rotationally switched with the non-energy storage device at an energy storage position. The closing mechanism 6 comprises a closing half shaft 62, a closing locking plate 61 and a closing torsion spring 63, wherein the closing half shaft 62 is rotationally arranged between the two side plates 1 under the drive of external force, and the closing torsion spring 63 is suitable for applying the biasing force rotating towards the closing direction to the closing locking plate 61. The opening mechanism 7 comprises an opening half shaft 72, an opening locking plate 71, an opening locking plate tension spring 73 and an opening spring 74, the opening half shaft 72 is driven by external force to be rotatably installed between the two side plates 1, one end of the opening locking plate tension spring 73 is connected with the five-link structure 8, the other end of the opening locking plate tension spring 73 is connected with the opening locking plate 71, one end of the opening spring 74 is fixed, and the other end of the opening spring is connected between the connecting positions of the five-link structure 8 and an external circuit breaker. The five-link structure 8 is connected with the opening locking plate 71, the output crank arm 11 and the external circuit breaker and is always abutted against the cam mechanism 4. During energy storage operation, the energy storage driving mechanism 2 drives the gear transmission mechanism 3 to drive the energy storage spring 5 to store energy. In the energy storage position, the five-link structure 8 is resisted by the opening spring 74 against the cam mechanism 4, and part of the five-link structure 8 and the opening locking plate 71 are limited by the opening half shaft 72. During closing operation, the closing half shaft 62 is driven to rotate by external force, the closing locking plate 61 rotates to abut against the output crank arm 11 under the action of biasing force of the closing torsion spring 63, the cam mechanism 4 rotates to a non-energy storage position under the action of energy release of the energy storage spring 5 and is limited and kept, and meanwhile, the five-link structure 8 drives the output crank arm 11 to move with the part connected with the circuit breaker to complete closing operation. More specifically, as shown in fig. 6, when the switch is in place, the cam mechanism 4 is stopped at the non-energy storage position by the tension of the energy storage spring 5 and the oil buffer, and the oil buffer abuts against the bottom end of the AC-phase crank arm 15. After the switch is closed in place, the energy storage mechanism is started, and the cam mechanism 4 rotates to the energy storage position again. During the opening operation, the opening half shaft 72 is driven by external force to rotate, and the opening locking plate 71 is driven by the pulling force of the opening locking plate tension spring 73 to rotate towards the direction opposite to the closing direction until the part of the five-link structure 8 connected with the output crank arm 11 abuts against the cam mechanism 4 at the energy storage position to complete the opening operation. In the operating mechanism of the present embodiment, the cam 41 is always in contact with the five-link structure 8. When the switch is switched on, the moment of the cam 41 does not need to be very large, the switch-on operation can be realized, the performance is stable and reliable, and the service life of the whole operating mechanism is ensured.
It should be noted that one end of the opening half shaft 72 is connected to the opening coil 10 and the opening half shaft 72 can be driven to rotate by a button operation or other means known to those skilled in the art. Similarly, one end of the closing half shaft 62 is connected to the closing coil 9, and the closing half shaft 62 can be driven to rotate by button operation or other means known to those skilled in the art.
As shown in fig. 4 to 12, the five-link structure 8 can be switched between a first state of a closed state and a second state of an open state. More specifically, the energy storage mechanism is switchable between a non-energy storage position and an energy storage position in the first state, and the energy storage mechanism is in the energy storage position in the second state. Specifically, as shown in fig. 9 to 12, the five-link structure 8 is in a substantially vertical state in the first state, and as shown in fig. 4 to 7, in a mutually folded state in the second state. As shown in fig. 10, in the energy storage position of the first state, the five-link structure 8 abuts against the first position of the cam mechanism 4. As shown in fig. 9, in the first non-charging position, the five-link structure 8 abuts against the second position of the cam mechanism 4. As shown in fig. 5, in the energy storage position of the second state, the five-link structure 8 abuts against the third position of the cam mechanism 4. As for the cam 41, as shown in fig. 5, the cam 41 is surrounded by a circular arc edge and an S-shaped curved edge. When the five-link structure 8 is in the first state, the pulley 80 abuts on the arc edge. More specifically, the first position and the second position are respectively arranged at two ends of the circular arc edge, and the third position is arranged on the S-shaped curved edge. That is, when the cam 41 is in the charging position in the first state, the pulley 80 abuts against one end of the arc, and when the cam 41 is in the non-charging position in the first state, the pulley 80 abuts against the other end of the arc. When the five-bar linkage 8 is in the second state energy storage position, the pulley 80 abuts against the S-shaped curved edge, specifically the recessed position of the S-shaped curved edge as shown in the figure.
As for the five-link structure 8, as shown in fig. 4 to 12, the five-link structure 8 includes a first coupling plate 81, a second coupling plate 82, a third coupling plate 83, a fourth coupling plate 84, and a fifth coupling plate 85, which are hingedly connected. One end of the first connecting plate 81 is fixed, the other end is hinged with the second connecting plate 82 and the third connecting plate 83, one end of the opening lock catch plate tension spring 73 is fixed on the first connecting plate 81, and the other end is fixed on the opening lock catch plate 71. One end of the second connecting plate 82 is hinged with the first connecting plate 81 and the third connecting plate 83, and the other end is hinged with the opening locking plate 71. One end of the third connecting plate 83 is hinged to the first connecting plate 81 and the second connecting plate 82. One end of the fourth connecting plate 84 is hinged with the other end of the third connecting plate 83, the other end of the fourth connecting plate 84 is hinged with the output crank arm 11, the output crank arm 11 is connected with the AC phase crank arm 15 through the output square shaft 12, a pulley 80 is arranged at the hinged position of the fourth connecting plate 84 and the third connecting plate 83, and the pulley 80 is always in sliding contact with the cam mechanism 4. One end of the fifth connecting plate 85 is hinged with the AC phase connecting lever 15, the other end of the fifth connecting plate is hinged with the closing connecting lever 16, the closing connecting lever 16 is connected with an external circuit breaker through a connecting square shaft 17, specifically, the closing connecting lever is connected with an insulating pull rod 18, during closing, the insulating pull rod 18 is upward, the vacuum tube is electrified, and otherwise, during opening, the insulating pull rod 18 is downward, and the vacuum tube is powered off. One end of the opening spring 74 is fixed on the side edge, and the other end is connected to the closing crank arm 16. The five-link structure 8 has a first angle between the first connecting plate 81 and the third connecting plate 83, and a first angle between the third connecting plate 83 and the fourth connecting plate 84 in the first state, and a second angle between the first connecting plate 81 and the third connecting plate 83, and between the third connecting plate 83 and the fourth connecting plate 84 in the second state, which are both obtuse angles, and the first angle and the second angle are smaller than the first angle. It should be noted that, in the first state, the first included angle α 1 between the first connecting plate 81 and the third connecting plate 83 is different from the first included angle α 2 between the third connecting plate 83 and the fourth connecting plate 84, for example, α 1 may be 170 ° and α 2 may be 172 °, and since the first included angle α 1 between the first connecting plate 81 and the third connecting plate 83 and the first included angle α 2 between the third connecting plate 83 and the fourth connecting plate 84 are both smaller than 180 °, the pulley 80 is always stressed to be in contact with the cam 41, and the second connecting plate 82 is stressed to drive the opening locking plate 71 to be limited by the opening half shaft 72, so that the mechanism is kept in the closing position, and after the mechanism is closed in place, the energy storage spring 5 releases energy, and can perform energy storage operation again by starting the energy storage driving mechanism 2, so that energy storage is performed in the closing state. In the energy storage position of the opening state, the pulley 80 of the five-link structure 8 abuts against the concave position of the S-shaped curved edge of the cam mechanism and is limited by the cam mechanism 4. In the closing operation, the cam mechanism 4 rotates towards the non-energy storage position, namely, the anticlockwise direction shown in fig. 5, under the energy releasing action of the energy storage spring 5, so that the limitation on the five-link structure 8 is removed, the five-link structure 8 rotates towards the first state direction from the second state, namely, moves towards the vertical state from the mutually folded state shown in fig. 5, and further drives the output crank arm 11 to realize the closing operation.
Preferably, a stop is also provided on the side plate 1 for abutting against the outside of the third and fourth connecting plates 83, 84 and the pulley 80.
More specifically, as for the cam mechanism 4, as shown in fig. 4 and 5, the cam mechanism 4 includes a cam shaft 42, a cam 41, and a ratchet 43 and pawl 44 mechanism. Wherein the cam shaft 42 is mounted between the two side plates 1. The cam 41 is sleeved on the cam shaft 42 and is far away from the energy storage spring 5, and the cam 41 is provided with a limiting wheel 410. The ratchet wheel 43 and pawl 44 mechanism comprises a ratchet wheel 43 and a pawl 44, wherein the ratchet wheel 43 is coaxially arranged on the cam shaft 42 and is coaxially sleeved with the cam 41, the pawl 44 is arranged on the output gear of the gear transmission mechanism 3, and a notch capable of being engaged with the pawl 44 is formed in the peripheral wall of the ratchet wheel 43. As shown in fig. 5, a blocking wheel is disposed on the side plate 1 close to the pawl 44, during energy storage operation, the energy storage driving mechanism 2 drives the gear transmission mechanism 3 to drive the ratchet wheel 43 and the pawl 44 mechanism to engage, so as to drive the cam shaft 42 to rotate to drive the energy storage spring 5 to store energy, and stop driving of the energy storage motor 211 or the handle 221, at this time, the pawl 44 is blocked by the blocking wheel and is separated from the ratchet wheel 43, the energy storage spring 5 continues to drive the energy storage shaft 23 to rotate until the limiting wheel 410 contacts the closing locking plate 61, the closing locking plate 61 is limited by the closing half shaft 62 to stop the energy storage shaft 23, and the cam 41 is located at an energy storage position. Through the arrangement of the ratchet wheel 43, the pawl 44 mechanism and the catch wheel, the cam mechanism 4 and the gear transmission mechanism 3 can be linked during energy storage operation and separated during closing operation, so that the motion of the energy storage operation and the motion of the closing operation and the opening operation are not interfered with each other. So as to realize the switching-on operation in the process of releasing energy by the energy storage spring 5, and simultaneously, after the switching-on is in place, the energy can be stored by starting the energy storage operation again.
Preferably, as shown in fig. 2 and fig. 3, the energy storage spring 5 is in transmission connection with the cam shaft 42 through an energy storage connecting lever 52, the energy storage connecting lever 52 is connected with the energy storage spring 5 through a spring hanging plate 53, the energy storage mechanism further comprises a pressing plate 13 and a travel switch 14, and the pressing plate 13 is rotatably arranged on the outer side of the side plate 1 and abuts against the energy storage connecting lever 52. The travel switch 14 is electrically connected with the energy storage motor 211. During energy storage, the energy storage crank arm 52 presses the pressure plate 13, so that the pressure plate 13 rotates towards the direction of the travel switch 14 until the travel switch 14 is triggered to turn off the energy storage motor 211. For the convenience of observation, the operating mechanism of this embodiment is further provided with an energy storage identifier, a non-energy storage identifier, and a closing identifier and an opening identifier, specifically, as shown in fig. 1 and fig. 2, the energy storage identifier is located above the non-energy storage identifier, and the closing identifier is located above the opening identifier. It should be noted that the energy storage spring 5 includes an energy storage spring body 51 and an end of the energy storage spring body 51 fixed to the side plates, that is, an end far away from the energy storage crank arm 52, and is fixedly connected to the fixed shaft fixed to the two side plates 1 through an adjusting mechanism. The adjusting mechanism can be selected as an adjusting screw, and the maximum deformation amount, namely the maximum energy storage value of the energy storage spring body 51 can be adjusted through the setting of the adjusting screw.
As shown in fig. 2 and 3, the stored energy driving mechanism 2 includes a stored energy shaft 23, an electric stored energy driving mechanism 21, and a manual stored energy driving mechanism 22, that is, the stored energy driving mechanism is a manual-electric integrated stored energy mechanism. More specifically, as shown in fig. 2, the energy storage shaft 23 is installed between the two side plates 1, and one end of the energy storage shaft 23 extends out of the side plate 1, the electric energy storage driving mechanism 21 includes the energy storage motor 211 arranged outside one of the side plates 1, the other end of the energy storage shaft 23, which does not extend out of the side plate 1, is connected to the driving end of the energy storage motor 211, and the energy storage motor 211 drives the energy storage shaft 23 to rotate and drives the gear transmission mechanism 3 to transmit so as to realize electric energy storage. The manual energy storage driving mechanism 22 comprises a worm and gear mechanism, a handle 221 arranged on the worm 222 and a clutch 224 connected with the energy storage shaft 23, wherein the handle 221 drives the worm 222 to drive the worm wheel 223 to rotate and drive the energy storage shaft 23 to rotate through the clutch 224, so as to drive the gear transmission mechanism 3 to transmit, and thus, the manual energy storage is realized. The manual energy storage driving mechanism 22 and the electric energy storage driving mechanism 21 are connected through an energy storage shaft 23, and the manual energy storage driving mechanism 22 is linked with the energy storage shaft 23 through a clutch device 224, preferably, the clutch device 224 is a one-way bearing sleeved on the energy storage shaft 23. When the electric energy storage is adopted, the energy storage motor 211 drives the energy storage shaft 23 to rotate to drive the gear transmission mechanism 3 to transmit, and then drives the energy storage spring 5 to realize the electric energy storage. When the energy storage motor 211 breaks down, the handle 221 is used for driving, and the energy storage shaft 23 is driven through the one-way bearing linkage, so that the gear transmission mechanism 3 is driven to transmit, and the energy storage spring 5 is driven to realize manual energy storage. Because the clutch 224 adopts a one-way bearing, that is, when the electric energy storage or the handle 221 is rotated reversely, the clutch 224 does not interact with the energy storage shaft 23 and idles between the two, and misoperation during manual energy storage can be avoided.
As for the gear transmission mechanism 3, as shown in fig. 2, the gear transmission mechanism 3 of the present embodiment is a two-stage transmission, and has a simple structure and occupies a small space, so that the volume of the whole operating mechanism is small. Specifically, the gear transmission mechanism 3 includes a pinion gear 31 and a bull gear 32. The pinion 31 is an input gear, is disposed on the energy storage shaft 23, and is driven to rotate during electric energy storage or manual energy storage. The large gear 32 is an output gear, and is fitted to a camshaft 42 of the cam mechanism 4 and engaged with the small gear 31.
As shown in fig. 2, the energy storage motor 211 and the manual energy storage driving mechanism 22 of the present embodiment are all disposed outside the side plate 1, that is, outside the installation space, and the gear transmission mechanism 3, the cam mechanism 4, the first connecting plate 81, the second connecting plate 82, the third connecting plate 83, the fourth connecting plate 84, the output crank arm 11, the opening latch plate 71, the opening half shaft 72, the opening latch plate tension spring 73, the closing latch plate 61, the closing torsion spring 63, and the closing half shaft 62 are all disposed in the installation space, so that the installation space between the two side plates 1 is fully utilized, the overall volume of the entire operating mechanism can be reduced, and the degree of modularization is higher.
Optionally, as shown in fig. 2, the modular operating mechanism of the present embodiment further includes a counter 19 disposed in the installation space and configured to detect the number of rotations of the cam 41 of the cam mechanism 4.
Example 2
A circuit breaker of the present embodiment, see fig. 1 to 12, includes the modular operating mechanism of embodiment 1. The general structure of other circuit breakers and the connection mode with the operating mechanism are not described or limited in detail herein, and are not the point of the present invention. Since the operating mechanism of embodiment 1 is employed, there are at least advantageous effects that the operating mechanism of embodiment 1 has.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (10)
1. A modular operating mechanism, comprising:
the two side plates (1) are oppositely arranged at intervals, and an installation space is formed between the two side plates (1) at intervals;
the energy storage mechanism comprises an energy storage driving mechanism (2), an energy storage transmission mechanism connected with the energy storage driving mechanism (2), a cam mechanism (4) connected with the energy storage transmission mechanism and an energy storage spring (5) in transmission connection with the cam mechanism (4), and the cam mechanism (4) can be rotationally switched with a non-energy storage device at an energy storage position;
the closing mechanism (6) comprises a closing half shaft (62), a closing locking plate (61) and a closing torsion spring (63), the closing half shaft (62) is driven by external force to be rotatably installed between the two side plates (1), and the closing torsion spring (63) is suitable for applying a biasing force rotating towards the closing direction to the closing locking plate (61);
the brake separating mechanism (7) comprises a brake separating half shaft (72), a brake separating and locking plate (71), a brake separating and locking plate tension spring (73) and a brake separating spring (74), the brake separating half shaft (72) is driven by external force to be rotatably installed between the two side plates (1), and the brake separating and locking plate tension spring (73) applies biasing force opposite to the brake separating and locking plate (71) in the direction of closing;
the five-link structure (8) is connected with the opening lock catch plate (71), the output crank arm (11) and an external circuit breaker and is always contacted with the cam mechanism (4);
during energy storage operation, the energy storage driving mechanism (2) drives the gear transmission mechanism (3) to drive the energy storage spring (5) to store energy; in the energy storage position, the five-link structure (8) is resisted with the cam mechanism (4) by the counterforce of a brake separating spring (74), and part of the five-link structure (8) and the brake separating and locking plate (71) are limited by the brake separating half shaft (72) to be kept in a brake separating state;
during closing operation, the closing half shaft (62) is driven by external force to rotate, the closing locking plate (61) rotates to abut against the output connecting lever (11) under the action of biasing force of the closing torsion spring (63), the cam mechanism (4) rotates to a non-energy storage position under the action of energy release of the energy storage spring (5), and meanwhile, the five-connecting-rod structure (8) drives the output connecting lever (11) to move to complete closing operation;
after the switch is closed in place, the energy storage mechanism is started, and the cam mechanism (4) rotates to the energy storage position again;
during the switching-off operation, the switching-off half shaft (72) is driven by external force to rotate, and the switching-off lock catch plate (71) rotates towards the direction opposite to the switching-on direction under the action of the pulling force of the switching-off lock catch plate tension spring (73) until the five-link structure (8) abuts against the cam mechanism (4) at the energy storage position.
2. A modular operating mechanism according to claim 1, characterized in that the five-bar linkage arrangement (8) is switchable between a first state of a closed state and a second state of an open state;
the energy storage mechanism can be switched between a non-energy storage position and an energy storage position in a first state, and is in an energy storage position in a second state;
when the energy storage position is in a first state, the five-connecting-rod structure (8) is abutted against the first position of the cam mechanism (4); when the energy storage position is in a first state, the five-link structure (8) is abutted against a second position of the cam mechanism (4);
and when the energy storage position is in the second state, the five-link structure (8) is propped against the third position of the cam mechanism (4).
3. A modular operating mechanism as claimed in claim 2, characterised in that said five-bar linkage (8) comprises a first connecting plate (81), a second connecting plate (82), a third connecting plate (83), a fourth connecting plate (84) and a fifth connecting plate (85) which are hinged to each other;
one end of the first connecting plate (81) is fixed, the other end of the first connecting plate is hinged with the second connecting plate (82) and the third connecting plate (83), one end of the opening lock catch plate tension spring (73) is fixed on the first connecting plate (81), and the other end of the opening lock catch plate tension spring is fixed on the opening lock catch plate (71);
one end of the second connecting plate (82) is hinged with the first connecting plate (81) and the third connecting plate (83), and the other end of the second connecting plate is hinged with the opening lock catch plate (71);
one end of the third connecting plate (83) is hinged with the first connecting plate (81) and the second connecting plate (82) respectively;
one end of the fourth connecting plate (84) is hinged with the other end of the third connecting plate (83), the other end of the fourth connecting plate is hinged with the output crank arm (11), the output crank arm (11) is connected with the AC phase crank arm (15) through an output square shaft (12), a pulley (80) is arranged at the hinged position of the fourth connecting plate (84) and the third connecting plate (83), and the pulley (80) is always in sliding abutting connection with the cam mechanism (4);
one end of the fifth connecting plate (85) is hinged with the AC phase connecting lever (15), the other end of the fifth connecting plate is hinged with the closing connecting lever (16), the closing connecting lever (16) is connected with an external circuit breaker through a connecting square shaft (17), and the opening spring (74) is connected to the closing connecting lever (16);
the five-connecting-rod structure (8) is characterized in that the first connecting plate (81) and the third connecting plate (83), the third connecting plate (83) and the fourth connecting plate (84) form a first included angle in a first state, the first connecting plate (81) and the third connecting plate (83), the third connecting plate (83) and the fourth connecting plate (84) form a second included angle smaller than the first included angle in a second state, and the first included angle and the second included angle are obtuse angles.
4. Modular operating mechanism according to claim 3, characterized in that the cam mechanism (4) comprises:
a camshaft (42) mounted between the two side plates (1);
the cam (41) is sleeved on the cam shaft (42), is arranged far away from the energy storage spring (5), and is provided with a limiting wheel (410);
the ratchet wheel and pawl mechanism comprises a ratchet wheel (43) and a pawl (44), wherein the ratchet wheel (43) is coaxially sleeved on the cam shaft (42) with the cam (41), the pawl (44) is arranged on an output gear of the gear transmission mechanism (3), and a notch capable of being engaged with the pawl (44) is formed in the peripheral wall of the ratchet wheel (43);
the side plate (1) close to the pawl (44) is provided with a blocking wheel, during energy storage operation, the energy storage driving mechanism (2) drives the gear transmission mechanism (3) to drive the ratchet wheel and pawl mechanism to be engaged so as to drive the cam shaft (42) to rotate to drive the energy storage spring (5) to store energy, the energy storage driving mechanism is stopped, the pawl (44) is blocked by the blocking wheel and is separated from the ratchet wheel (43), the energy storage spring (5) continuously drives the energy storage shaft (23) to rotate until the limiting wheel (410) is contacted with the closing lock catch plate (61), the closing lock catch plate (61) is limited by a closing half shaft (62) so that the energy storage shaft (23) stops, and the cam (41) is in an energy storage position.
5. Modular operating mechanism according to claim 4, characterized in that the energy storage spring (5) is in driving connection with the camshaft (42) via an energy storage crank arm (52), the energy storage mechanism further comprising:
the pressing plate (13) is rotatably arranged on the outer side of the side plate (1) and is abutted against the energy storage connecting lever (52);
the travel switch (14) is electrically connected with the energy storage motor (211);
in the energy storage process, the energy storage crank arm (52) presses the pressure plate (13), so that the pressure plate (13) rotates towards the direction of the travel switch (14) until the travel switch (14) is triggered to turn off the energy storage motor (211).
6. A modular operating mechanism as claimed in claim 4 or 5, characterised in that the cam (41) is bounded by a circular edge and an S-shaped curved edge;
the first position and the second position are respectively arranged at two ends of the arc edge; the third location is on the S-shaped curved edge.
7. Modular operating mechanism according to any of claims 1-5, characterized in that the energy-storing drive mechanism (2) comprises:
the energy storage shaft (23) is arranged between the two side plates (1);
the electric energy storage driving mechanism (21) comprises an energy storage motor (211) arranged outside one side plate (1), the driving end of the energy storage motor (211) is connected with the energy storage shaft (23), and the energy storage motor (211) drives the energy storage shaft (23) to rotate and drives the gear transmission mechanism (3) to transmit, so that electric energy storage is realized;
manual energy storage actuating mechanism (22), it includes worm gear mechanism, sets up handle (221) on worm (222) and with clutch (224) that energy storage axle (23) are connected, handle (221) drive worm (222) drive worm wheel (223) rotate and pass through clutch (224) drive energy storage axle (23) rotate, thereby drive gear drive mechanism (3) transmission to realize manual energy storage.
8. A modular operating mechanism as claimed in claim 7, characterised in that the clutch means (224) is a one-way bearing fitted over the energy storing shaft (23).
9. A modular operating mechanism according to claim 7, characterized in that the gear transmission (3) comprises:
the pinion (31) is an input gear, is sleeved on the energy storage shaft (23) and can be driven to rotate during electric energy storage or manual energy storage;
and the large gear (32) is an output gear, is sleeved on a cam shaft (42) of the cam mechanism (4) and is meshed with the small gear (31).
10. A circuit breaker comprising a modular operating mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266400.5U CN218241741U (en) | 2021-09-15 | 2021-09-15 | Modular operating mechanism and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266400.5U CN218241741U (en) | 2021-09-15 | 2021-09-15 | Modular operating mechanism and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218241741U true CN218241741U (en) | 2023-01-06 |
Family
ID=84662142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122266400.5U Active CN218241741U (en) | 2021-09-15 | 2021-09-15 | Modular operating mechanism and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218241741U (en) |
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2021
- 2021-09-15 CN CN202122266400.5U patent/CN218241741U/en active Active
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