CN108172425B - An Intelligent Circuit Breaker Modular Operating Mechanism - Google Patents

Abstract

The invention relates to an intelligent circuit breaker modularized operating mechanism, which comprises a mechanism mounting plate, a closing pawl, an energy storage shaft, a cam, an energy storage crank arm and a closing spring, wherein a pin bearing capable of acting on the closing pawl extends out of the cam; the operating mechanism further comprises a manual closing interlocking module, a pushing handcart interlocking module and a clutch module. The intelligent circuit breaker mechanism has the advantages of being capable of preventing misoperation caused by secondary jump of the circuit breaker mechanism, preventing misoperation of the circuit breaker in a closing state of the circuit breaker, preventing misoperation of the circuit breaker in the advancing process of the pushing handcart, and being light in operation and long in service life.

Description

An Intelligent Circuit Breaker Modular Operating Mechanism

technical field

The invention relates to the field of electrical equipment, in particular to an intelligent circuit breaker.

Background technique

In the power system, circuit breakers are widely used as power distribution equipment, and the circuit breaker operating mechanism can perform closing or opening actions to realize the connection or disconnection of the electrical equipment connected to it.

Since the operation of the circuit breaker requires that the mechanism must be opened first, the mechanism can be closed manually or electrically, and the second manual closing action cannot be performed after the mechanism is closed, so the mechanism cannot be closed after the closing action is completed. Secondary closing operation is allowed. Therefore, in order to prevent the misoperation caused by the secondary jump of the circuit breaker mechanism, it is necessary to design a manual closing interlock mechanism to avoid the occurrence of the above situation.

Large circuit breakers generally need to be installed, maintained, and debugged by pushing the handcart. There is an interlocking requirement between the circuit breaker operating mechanism and the push trolley. Specifically, the circuit breaker is allowed to close and open only in the test or working position, and must not be closed while the push trolley is moving. When the circuit breaker is in the closed state, push The handcart cannot be cranked in or out. Therefore, in order to prevent the misoperation of the circuit breaker when it is in the closed state and the misoperation of the circuit breaker during the stroke of the push trolley, it is necessary to design an interlocking structure between the circuit breaker mechanism and the push trolley to avoid the occurrence of the above situation.

Since the operating mechanism of the circuit breaker, whether it is electric or manual energy storage, should disengage the torque after the energy storage is in place, so as to ensure that the holding mechanism after energy storage will not be affected by other moments except the tension of the closing spring. , so as to protect the life of the holding mechanism and the lightness of the operating force of the closing action. Therefore, the reasonable design of the clutch device of the circuit breaker directly affects the service life and convenience of operation of the circuit breaker. How to design a more reasonable clutch is a problem to be solved urgently by those skilled in the art.

Contents of the invention

An object of the present invention is to provide an intelligent circuit breaker modular operating mechanism with a manual closing interlocking module, a push trolley interlocking module and a clutch module, wherein the manual closing interlocking module can prevent the circuit breaker mechanism from Misoperation caused by jumping, the push trolley interlock module can prevent misoperation of the push trolley when the circuit breaker is in the closed state and prevent misoperation of the circuit breaker during the progress of the push trolley. The intelligent circuit breaker mechanism and the push trolley, The clutch module can achieve reliable clutching, convenient torque disengagement, avoid mechanism damage and jamming, and is easy to operate and has a long service life.

In order to achieve the above objectives, the technical solution adopted by the present invention is: a modular operating mechanism of an intelligent circuit breaker, including a mechanism mounting plate, a closing latch, an energy storage shaft, a cam, an energy storage lever and a closing spring. A pin bearing that can act on the closing pawl is extended from the cam, the closing pawl is rotatably disposed on the mechanism mounting plate, and the energy storage shaft is rotatably disposed on the mechanism mounting plate, The energy storage crank arm is fixedly arranged on the energy storage shaft, the closing spring is arranged between the mechanism mounting plate and the energy storage crank arm, and the cam is fixedly arranged on the energy storage shaft ; It is characterized in that: the operating mechanism also includes a manual closing interlocking module, a push handcart interlocking module and a clutch module;

The manual closing interlocking module includes the mechanism mounting plate, closing linkage, the closing pawl, the cam, the main shaft interlocking arm and the interlocking plate, and the closing pawl is provided with limited The interlocking plate is provided with an interlocking pin; the closing linkage is movably set on the mechanism mounting plate, and the main shaft interlocking arm is rotatably set on the mechanism mounting plate. The interlocking plate is slidably arranged on the mechanism mounting plate, the closing linkage can be linked with the closing latch, the closing latch can be linked with the cam, and the main shaft interlocking lever can be linked The interlocking plate; when the gate is opened, the limit boss and the interlock pin are kept at a certain distance from each other, and the closing pawl can be lifted upward at this time; when the gate is closed, the closing The linkage part drives the closing pawl upwards, and the closing pawl is separated from the pin bearing on the cam, causing the cam to lose balance and work under the action of the closing spring, thus completing a At the same time, the main shaft interlocking crank arm rotates downward, and the interlocking plate slides downward under the action of its own weight until the interlocking pin touches the limiting boss. At this time, the interlocking pin Restricting the rotation of the closing pawl, the closing pawl cannot be lifted up under the action of external force, so that the secondary closing operation cannot be performed;

The push trolley interlock module includes the mechanism installation plate, the closing detent, the main shaft interlock crank arm, the interlock bending plate, the reset tension spring and the push trolley interlock plate, the closing The latch extends downward from the latch boss, the main shaft interlocking arm extends from the arm boss inwardly, an interlock opening is opened on the outer side of the interlocking curved plate, and the interlocking curved plate extends upward The interlocking claw is released; the interlocking bent plate is slidably set on the mechanism mounting plate, and the return tension spring is set between the interlocking bent plate and the mechanism mounting plate, and forces the interlocking bent plate to The plate slides downward, and the interlocking plate of the propelling handcart is rotated and set on the circuit breaker mechanism, and the interlocking plate of the propelling handcart can be linked with the interlocking curved plate; the propelling handcart is in the test or working position, and the circuit breaker is in the When the gate is open, the interlocking plate of the propelling handcart is in the lower state, which plays the role of locking the propelling handcart. At the same time, the interlocking curved plate is pulled down to the lowest point under the force of the reset spring, and the turning If the arm boss does not enter the interlocking port, the main shaft interlocking arm can be turned downwards, and the closing pawl can be lifted up to perform the closing action; push the handcart to the test or working position, When the circuit breaker is in the closed state, the crank arm boss enters the interlock port, and the main shaft interlocks the crank arm to restrict the upward sliding of the interlocking bent plate, thereby ensuring that the pushing handcart interlocking plate cannot go upward. Lifting, the propelling handcart cannot be operated; when the propelling handcart is in the process of traveling and the circuit breaker is in the open state, the interlock plate of the propelling trolley is in the state of lifting, and the propelling trolley can be operated normally. The interlocking plate of the handcart overcomes the tension of the return tension spring, so that the interlocking bent plate is lifted up together until the interlocking pawl contacts the detent boss, and the interlocking bent plate restricts the closing The pawl rotates, thereby ensuring that the closing pawl cannot perform the closing operation;

The clutch module includes the mechanism mounting plate, the closing pawl, the energy storage shaft, the energy storage arm, the closing spring, the cam, the clutch gear, the clutch limit plate and the driving gear, and the clutch gear includes an external gear, The transmission plate and the movable tongue, the transmission plate is fixedly arranged on the energy storage shaft, the external gear is rotatably arranged on the periphery of the transmission disk, the inner side of the external gear is provided with a clutch groove, and the movable tongue is retractable Set on the transmission disc, and the movable tongue can enter the clutch groove, one side of the movable tongue and the clutch groove is in vertical contact, and the other side of the movable tongue and the clutch groove is a slope Contact, when the external gear rotates and the movable tongue and the clutch groove are in vertical contact, the external gear can drive the transmission disc to rotate synchronously through the movable tongue, and the movable tongue and the clutch groove When the inclined surface contacts, the external gear squeezes the movable tongue and no longer drives the transmission plate to rotate. The clutch limit plate is fixed on the mechanism mounting plate, and is tangent to the transmission plate and can Acting on the movable tongue, the drive gear meshes with the external gear to drive the external gear to rotate; when energy storage is required, the drive gear drives the external gear to rotate counterclockwise, at this time the movable tongue It is in vertical contact with the clutch groove, the external gear drives the transmission plate to rotate through the movable tongue, the transmission plate drives the energy storage shaft to rotate, and the energy storage shaft drives the energy storage crank arm Rotate, the energy storage crank arm stretches the closing spring to store energy, and at the same time, the energy storage shaft drives the cam to rotate, until the pin bearing on the cam is close to the closing detent , the clutch limit plate squeezes the movable tongue to disengage the movable tongue from the clutch groove, and then the cam continues to rotate counterclockwise under the force of the closing spring until the pin bearing Contact the closing pawl and maintain balance, and the energy storage is completed at this time; when it is necessary to close, the closing pawl is lifted upwards, and the closing pawl is separated from the pin bearing, so that the cam loses balance and rotates counterclockwise under the action of the closing spring. At this time, the movable tongue and the clutch groove are in inclined contact. When the transmission disc rotates, the external gear squeezes the movable tongue. The external gear does not limit the rotation of the transmission disc, thereby completing the closing action.

As an improvement, the manual closing and interlocking module also includes a closing and opening indicator, the middle section of the closing and opening indicator is rotatably connected to the mechanism mounting plate, and the left end of the closing and opening indicator is rotatably connected to the interlock On the board, a tension spring is set between the right end of the closing and opening indicator and the installation plate of the mechanism; when the brake is opened, the main shaft interlocking arm is lifted upwards, and the main shaft interlocking arm pushes the interlocking plate to hold At the uppermost position, at this time, the left end of the closing and opening indication is lifted, the tension spring is in a stretched state, and the closing and opening indication shows the opening state; when closing, the main shaft interlocks the crank arm Turn down, the extension spring shrinks, the closing and opening indicator turns downwards, and at the same time the interlocking plate slides downward, at this time, the right end of the closing and opening indicator is lifted, and the extension spring is in the Contraction state, the closing and opening indication shows the closing state.

Preferably, the closing linkage includes a manual closing lever, a closing lever and a closing pull plate, the manual closing lever is slidably arranged on the mechanism mounting plate, and the closing lever is rotatably arranged on the On the mechanism mounting plate, the closing pull plate is movably arranged on the mechanism mounting plate; when closing, the manual closing lever moves to the right, contacts the closing lever and makes the closing The crank arm moves to pull the closing pull plate, thereby lifting the closing latch upward.

Preferably, the clutch gear further includes a pressure spring, a guide pin and a pressure plate, the pressure spring is arranged between the transmission plate and the movable tongue, forcing the movable tongue to push out, and the guide pin is fixed It is arranged on the movable tongue, the pressing plate is fixedly arranged on the transmission disk, and the guide pin is slidably arranged on the pressing plate to limit the direction of expansion and contraction of the movable tongue.

Further preferably, the driving gear includes a manual driving gear and an electric driving gear.

Preferably, when the pin bearing is three degrees away from the closing pawl, the clutch limit plate starts to contact the movable tongue.

Compared with the prior art, the present invention has the advantages of:

The manual closing interlock module can restrict the upward lifting of the closing pawl after closing through the cooperative setting of the limit boss and the interlocking pin, so that the second manual closing operation cannot be performed, thus preventing the circuit breaker from The function of the misoperation caused by the second jump of the mechanism.

On the one hand, the interlocking module of the push handcart ensures that the interlock plate of the push handcart cannot be lifted up when the circuit breaker is in the closed state through the cooperative setting of the crank arm boss and the interlock port. In this state, the push handcart cannot operation, it plays a role in preventing misoperation of the propelling trolley when the circuit breaker is in the closed state; Rotate to realize that the propelling handcart can prevent closing during the advancing process, which plays a role in preventing the circuit breaker from misoperation during the advancing process of the propelling handcart.

The clutch module is set by the clutch gear and the clutch limit plate. After the energy storage is in place, the torque can be disengaged quickly, so as to avoid damage to the operating mechanism; At the time, the external gear will not limit the rotation of the transmission disc, that is, the rotation of the energy storage shaft and the cam will not be limited, thereby avoiding the jamming of the operating mechanism. Through the above structure, the service life of the operating mechanism can be improved, and the operation of the operating mechanism can be made easy.

Description of drawings

1 to 3 are schematic three-dimensional structure diagrams according to a preferred embodiment of the present invention.

Fig. 4 is a front view (open state) of the manual closing interlock module in a preferred embodiment of the present invention.

Fig. 5 is a rear view (open state) of the manual closing interlock module in a preferred embodiment of the present invention.

Fig. 6 is a side view (open state) of the manual closing interlock module in a preferred embodiment of the present invention.

Fig. 7 is a front view (closed state) of the manual closing interlock module in a preferred embodiment of the present invention.

Fig. 8 is a rear view (closed state) of the manual closing interlock module according to a preferred embodiment of the present invention.

Fig. 9 is a side view (closed state) of the manual closing interlock module in a preferred embodiment of the present invention.

Fig. 10 is a front view of the interlocking module of the push trolley in a preferred embodiment of the present invention (the push trolley is in the test or working position, and the circuit breaker is in the closed state).

Fig. 11 is a side view of the interlocking module of the push trolley in a preferred embodiment of the present invention (the push trolley is in the test or working position, and the circuit breaker is in the closed state).

Fig. 12 is a front view of the interlocking module of the push trolley in a preferred embodiment of the present invention (the push trolley is in the test or working position, and the circuit breaker is in the closed state).

Fig. 13 is a side view of the interlocking module of the push trolley in a preferred embodiment of the present invention (the push trolley is in the test or working position, and the circuit breaker is in the closed state).

Fig. 14 is a front view of the interlocking module of the push trolley according to a preferred embodiment of the present invention (the push trolley is in the process of traveling, and the circuit breaker is in the open state).

Fig. 15 is a side view of the interlocking module of the propelling trolley according to a preferred embodiment of the present invention (the propelling trolley is in the process of traveling, and the circuit breaker is in the open state).

Fig. 16 is a schematic perspective view of the clutch module in a preferred embodiment of the present invention.

Fig. 17 is a schematic perspective view of the clutch gear in a preferred embodiment of the present invention.

Fig. 18 is a schematic diagram of the internal structure of the clutch gear in a preferred embodiment of the present invention.

Fig. 19 is a front view of the clutch module in a non-energy storage state according to a preferred embodiment of the present invention.

Fig. 20 is a side view of the clutch module in a non-energy storage state according to a preferred embodiment of the present invention.

Fig. 21 is a front view of a clutch module in an energy storage state according to a preferred embodiment of the present invention.

Fig. 22 is a side view of the clutch module in an energy storage state according to a preferred embodiment of the present invention.

Implementation

The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

As shown in Figures 1 to 22, a preferred embodiment of the present invention includes a mechanism mounting plate 1, a closing detent 2, an energy storage shaft 3, an energy storage arm 4, a closing spring 5 and a cam 6, on which the cam 6 Extended is a pin bearing 61 that can act on the closing pawl 2 . Among them, the closing detent 2 is rotatably set on the mechanism mounting plate 1, the energy storage shaft 3 is rotatably set on the mechanism mounting plate 1, the energy storage lever 4 is fixedly set on the energy storage shaft 3, and the closing spring 5 is set on the mechanism installation Between the plate 1 and the energy storage crank arm 4 , the cam 6 is fixedly arranged on the energy storage shaft 3 . The key point is that the mechanism is also provided with a manual closing interlocking module 100 , a push handcart interlocking module 200 and a clutch module 300 . The three modules are relatively independent, but there are also overlapping parts, so some parts will appear repeatedly in each module. The following focuses on the introduction of the three modules:

As shown in Figures 4 to 9, the specific structure of the manual closing interlock module 100: includes a mechanism mounting plate 1, a closing linkage 102, a closing pawl 2, a cam 6, a main shaft interlocking arm 105 and an interlocking plate 106 , the closing pawl 2 is provided with a limiting boss 21 , and the interlocking plate 106 is provided with an interlocking pin 161 . The specific connection method is as follows: the closing linkage 102 is movably set on the mechanism mounting plate 1, the main shaft interlock crank arm 105 is rotatably set on the mechanism mounting plate 1, the interlocking plate 106 is slidably set on the mechanism mounting plate 1, and the closing The linkage piece 102 can be linked with the closing pawl 2 , the closing pawl 2 can be linked with the cam 6 through the pin bearing 61 , and the main shaft interlocking lever 105 can be linked with the interlocking plate 106 .

The working principle of the manual closing interlock module 100 is as follows: when opening the gate, the limit boss 21 and the interlock pin 161 keep a certain distance from each other, and at this time the closing pawl 2 can be lifted upward; The brake linkage 102 drives the closing pawl 2 to lift up, and the closing pawl 2 breaks away from the pin bearing 61 on the cam 6, causing the cam 4 to lose balance and work under the action of the closing spring 5, thereby completing a closing At the same time, the main shaft interlocking arm 105 rotates downward, and the interlocking plate 106 slides downward under the action of its own weight until the interlocking pin 161 touches the limit boss 21. At this time, the interlocking pin 161 limits the rotation of the closing pawl 2 , The closing pawl 2 cannot be lifted up under the action of external force, so that the secondary closing operation cannot be performed.

In addition, the manual closing and interlocking module 100 also includes a closing and opening indication 107. The middle section of the closing and opening indication 107 is rotatably connected to the mechanism mounting plate 1, and the left end of the closing and opening indication 107 is rotatably connected to the interlocking plate 106. A tension spring 108 is arranged between the right end of the indicator 107 and the mechanism mounting plate 1 . When the brake is opened, the main shaft interlocking arm 105 is lifted upwards, and the main shaft interlocking arm 105 pushes the interlocking plate 106 to remain at the uppermost position. At this time, the left end of the closing and opening indicator 107 is lifted, and the tension spring 108 is in tension. state, the closing and opening indication 107 shows the opening state; when closing, the main shaft interlocking arm 105 turns downwards, the extension spring 108 shrinks, the closing and opening indication 107 turns downwards, and the interlocking plate 106 slides downwards at the same time, At this time, the right end of the closing and opening indication 107 is lifted, and the extension spring 108 is in a contracted state, and the closing and opening indication 107 shows the closing state.

More specifically, the closing linkage 102 includes a manual closing lever 121, a closing lever 122 and a closing pull plate 123, the manual closing lever 121 is slidably arranged on the mechanism mounting plate 1, and the closing lever 122 is rotatably set on the mechanism On the mounting plate 1, the closing pull plate 123 is movably arranged on the mechanism mounting plate 1; when closing, the manual closing lever 121 moves to the right, contacts the closing lever 122 and makes the closing lever 122 move, and pulls the closing lever 121 to move to the right. The gate pulls the plate 123, thereby lifting the closing pawl 2 upwards.

As shown in Figures 10 to 15, the specific structure of the push handcart interlock module 200 includes: a mechanism mounting plate 1, a closing detent 2, a spindle interlock arm 105, an interlock bent plate 204, a return tension spring 205 and a push The handcart interlock 20 plate 6, the closing pawl 2 extends downward from the pawl boss 22, the main shaft interlock arm 105 extends inwardly from the arm boss 231, and the outer side of the interlock curved plate 204 is provided with an interlock The opening 241 , the interlocking claw 242 extends from the upper side of the interlocking bent plate 204 . The interlocking curved plate 204 is slidably arranged on the mechanism mounting plate 1, and the return tension spring 205 is arranged between the interlocking curved plate 204 and the mechanism mounting plate 1, and forces the interlocking curved plate 204 to slide downward to push the handcart interlocking plate 206 is rotatably arranged on the circuit breaker mechanism, and the handcart interlocking plate 206 can be pushed to interlock the interlocking curved plate 204 .

The specific working principle of the push handcart interlock module 200 is as follows: as shown in Figures 10 and 11, when the push handcart is in the test or working position, and the circuit breaker is in the open state, the push handcart interlock plate 206 is in the down state, It plays the role of locking and pushing the handcart. At the same time, the interlocking bent plate 204 is pulled down to the lowest point under the force of the reset tension spring 205, and the crank arm boss 231 does not enter the interlocking port 241. Turning down, the closing pawl 2 can be lifted up to perform the closing action. As shown in Figures 12 and 13, when the propelling trolley is in the test or working position, and the circuit breaker is in the closed state, the crank arm boss 231 enters the interlock opening 241, and the main shaft interlocking crank arm 105 restricts the upward sliding of the interlocking bent plate 204 , so as to ensure that the interlocking plate 206 of the push handcart cannot be lifted upwards, and the push handcart cannot be operated. As shown in Figures 14 and 15, the propelling handcart is in the process of traveling, and when the circuit breaker is in the open state, the interlocking plate 206 of the propelling handcart is in the upward state, and the propelling handcart can be operated normally. At this time, the propelling handcart is interlocked. The plate 206 overcomes the pulling force of the reset tension spring 205, so that the interlocking curved plate 204 is lifted upward together until the interlocking pawl 242 touches the latch boss 22, and the interlocking curved plate 204 restricts the rotation of the closing pawl 2, thereby ensuring that the closing pawl Child 2 cannot perform closing operation.

As shown in Figures 16 to 22, the specific structure of the clutch module 300 includes: a mechanism mounting plate 1, a closing pawl 2, an energy storage shaft 3, an energy storage arm 4, a closing spring 5, a cam 6, a clutch gear 307, Clutch limit disc 308 and driving gear, clutch gear 307 comprises external gear 371, transmission disc 372 and movable tongue 373, transmission disc 372 is fixedly arranged on the energy storage shaft 3, external gear 371 is rotatably arranged on the periphery of transmission disc 372, and external gear The inner side of 371 is provided with a clutch groove 3711, and the movable tongue 373 is telescopically arranged on the transmission disc 372, and the movable tongue 373 can enter the clutch groove 3711, and one side of the movable tongue 373 and the clutch groove 3711 is in vertical contact, and the movable tongue 373 and the clutch The other side of the slot 3711 is in contact with an inclined surface. When the external gear 371 rotates and the movable tongue 373 and the clutch groove 3711 are in vertical contact, the external gear 371 can drive the transmission disc 372 to rotate synchronously through the movable tongue 373. The movable tongue 373 and the clutch groove 3711 are When the inclined surface contacts, the external gear 371 squeezes the movable tongue 373 and no longer drives the transmission disc 372 to rotate. The clutch limit disc 308 is fixedly arranged on the mechanism mounting plate 1, and is tangent to the transmission disc 372 and can act on the movable tongue 373 to drive The gear meshes with the external gear 371 to drive the external gear 371 to rotate.

The working mode of the clutch module 300 is as follows: when energy storage is required, the driving gear drives the external gear 371 to rotate counterclockwise, at this time the movable tongue 373 and the clutch groove 3711 are in vertical contact, and the external gear 371 drives the transmission disc 372 to rotate through the movable tongue 373 , the transmission disc 372 drives the energy storage shaft 3 to rotate, the energy storage shaft 3 drives the energy storage arm 4 to rotate, the energy storage arm 4 stretches the closing spring 5 to store energy, and at the same time the energy storage shaft 3 drives the cam 6 to rotate to the cam When the pin bearing 61 on 6 is close to the closing pawl 2, the clutch limit plate 308 squeezes the movable tongue 373, so that the movable tongue 373 is separated from the clutch groove 3711, and then the cam 6 continues to counterclockwise under the action of the closing spring 5 elastic force. Rotate until the pin bearing 61 touches the closing pawl 2 and keeps the balance, at this time the energy storage is completed; The cam 6 loses balance and rotates counterclockwise under the effect of the closing spring 5. At this time, the movable tongue 373 and the clutch groove 3711 are in contact with the inclined plane. The disc 373 rotates to complete the closing action.

More specifically, the clutch gear 307 also includes a compression spring 374, a guide pin 375, and a pressure plate 376. The compression spring 374 is arranged between the transmission disc 372 and the movable tongue 373, forcing the movable tongue 373 to push out, and the guide pin 375 is fixedly arranged on the On the movable tongue 373 , a pressing plate 376 is fixedly arranged on the transmission disc 372 , and a guide pin 375 is slidably arranged on the pressing plate 376 , which is used to limit the telescopic direction of the movable tongue 73 .

Wherein, the driving gear includes a manual driving gear 309 and an electric driving gear 309'. In this embodiment, when the pin bearing 61 is three degrees away from the closing pawl 2 , the clutch limit plate 308 starts to contact the movable tongue 373 .

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description are only the principles of the present invention. Variations and improvements, which fall within the scope of the claimed invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A modularized operating mechanism for an intelligent circuit breaker, comprising a mechanism mounting plate, a closing detent, an energy storage shaft, a cam, an energy storage arm and a closing spring, and the cam extends to act on the closing spring. The pin bearing of the brake latch, the closing latch is rotatably set on the mechanism mounting plate, the energy storage shaft is rotatably set on the mechanism mounting plate, and the energy storage crank arm is fixedly set on the On the energy storage shaft, the closing spring is arranged between the mechanism mounting plate and the energy storage crank arm, and the cam is fixedly arranged on the energy storage shaft; it is characterized in that: the operating mechanism also Including manual closing interlocking module, push trolley interlocking module and clutch module; The manual closing interlocking module includes the mechanism mounting plate, closing linkage, the closing pawl, the cam, the main shaft interlocking arm and the interlocking plate, and the closing pawl is provided with limited The interlocking plate is provided with an interlocking pin; the closing linkage is movably set on the mechanism mounting plate, and the main shaft interlocking arm is rotatably set on the mechanism mounting plate. The interlocking plate is slidably arranged on the mechanism mounting plate, the closing linkage can be linked with the closing latch, the closing latch can be linked with the cam, and the main shaft interlocking lever can be linked The interlocking plate; when the gate is opened, the limit boss and the interlock pin are kept at a certain distance from each other, and the closing pawl can be lifted upward at this time; when the gate is closed, the closing The linkage part drives the closing pawl upwards, and the closing pawl is separated from the pin bearing on the cam, causing the cam to lose balance and work under the action of the closing spring, thus completing a At the same time, the main shaft interlocking crank arm rotates downward, and the interlocking plate slides downward under the action of its own weight until the interlocking pin touches the limiting boss. At this time, the interlocking pin Restricting the rotation of the closing pawl, the closing pawl cannot be lifted up under the action of external force, so that the secondary closing operation cannot be performed; The push trolley interlock module includes the mechanism installation plate, the closing detent, the main shaft interlock crank arm, the interlock bending plate, the reset tension spring and the push trolley interlock plate, the closing The latch extends downward from the latch boss, the main shaft interlocking arm extends from the arm boss inwardly, an interlock opening is opened on the outer side of the interlocking curved plate, and the interlocking curved plate extends upward The interlocking claw is released; the interlocking bent plate is slidably set on the mechanism mounting plate, and the return tension spring is set between the interlocking bent plate and the mechanism mounting plate, and forces the interlocking bent plate to The plate slides downward, and the interlocking plate of the propelling handcart is rotated and set on the circuit breaker mechanism, and the interlocking plate of the propelling handcart can be linked with the interlocking curved plate; the propelling handcart is in the test or working position, and the circuit breaker is in the When the gate is open, the interlocking plate of the propelling handcart is in the lower state, which plays the role of locking the propelling handcart. At the same time, the interlocking curved plate is pulled down to the lowest point under the force of the reset spring, and the turning If the arm boss does not enter the interlocking port, the main shaft interlocking arm can be turned downwards, and the closing pawl can be lifted up to perform the closing action; push the handcart to the test or working position, When the circuit breaker is in the closed state, the crank arm boss enters the interlock port, and the main shaft interlocks the crank arm to restrict the upward sliding of the interlocking bent plate, thereby ensuring that the pushing handcart interlocking plate cannot go upward. Lifting, the propelling handcart cannot be operated; when the propelling handcart is in the process of traveling and the circuit breaker is in the open state, the interlock plate of the propelling trolley is in the state of lifting, and the propelling trolley can be operated normally. The interlocking plate of the handcart overcomes the tension of the return tension spring, so that the interlocking bent plate is lifted up together until the interlocking pawl contacts the detent boss, and the interlocking bent plate restricts the closing The pawl rotates, thereby ensuring that the closing pawl cannot perform the closing operation; The clutch module includes the mechanism mounting plate, the closing pawl, the energy storage shaft, the energy storage arm, the closing spring, the cam, the clutch gear, the clutch limit plate and the driving gear, and the clutch gear includes an external gear, The transmission plate and the movable tongue, the transmission plate is fixedly arranged on the energy storage shaft, the external gear is rotatably arranged on the periphery of the transmission disk, the inner side of the external gear is provided with a clutch groove, and the movable tongue is retractable Set on the transmission disc, and the movable tongue can enter the clutch groove, one side of the movable tongue and the clutch groove is in vertical contact, and the other side of the movable tongue and the clutch groove is a slope Contact, when the external gear rotates and the movable tongue and the clutch groove are in vertical contact, the external gear can drive the transmission disc to rotate synchronously through the movable tongue, and the movable tongue and the clutch groove When the inclined surface contacts, the external gear squeezes the movable tongue and no longer drives the transmission plate to rotate. The clutch limit plate is fixed on the mechanism mounting plate, and is tangent to the transmission plate and can Acting on the movable tongue, the drive gear meshes with the external gear to drive the external gear to rotate; when energy storage is required, the drive gear drives the external gear to rotate counterclockwise, at this time the movable tongue It is in vertical contact with the clutch groove, the external gear drives the transmission plate to rotate through the movable tongue, the transmission plate drives the energy storage shaft to rotate, and the energy storage shaft drives the energy storage crank arm Rotate, the energy storage crank arm stretches the closing spring to store energy, and at the same time, the energy storage shaft drives the cam to rotate, until the pin bearing on the cam is close to the closing detent , the clutch limit plate squeezes the movable tongue to disengage the movable tongue from the clutch groove, and then the cam continues to rotate counterclockwise under the force of the closing spring until the pin bearing Contact the closing pawl and maintain balance, and the energy storage is completed at this time; when it is necessary to close, the closing pawl is lifted upwards, and the closing pawl is separated from the pin bearing, so that the cam loses balance and rotates counterclockwise under the action of the closing spring. At this time, the movable tongue and the clutch groove are in inclined contact. When the transmission disc rotates, the external gear squeezes the movable tongue. The external gear does not limit the rotation of the transmission disc, thereby completing the closing action. 2. An intelligent circuit breaker modular operating mechanism according to claim 1, characterized in that: the manual closing and interlocking module also includes a closing and opening indication, and the middle section of the closing and opening indication is rotationally connected On the mechanism mounting plate, the left end of the closing and opening indicator is rotatably connected to the interlocking plate, and a tension spring is arranged between the right end of the closing and opening indicator and the mechanism mounting plate; The main shaft interlocking arm is lifted upwards, and the main shaft interlocking arm pushes the interlocking plate to maintain the uppermost position. At this time, the left end of the closing and opening indication is lifted, and the tension spring is in a stretched state. The closing and opening indication shows the opening state; when closing, the main shaft interlocking arm turns downward, the tension spring shrinks, the closing and opening indication turns downward, and the interlocking plate moves downward Slide down, at this time, lift the right end of the closing and opening indication, the tension spring is in a contracted state, and the closing and opening indication shows the closing state. 3. An intelligent circuit breaker modular operating mechanism according to claim 2, characterized in that: the closing linkage includes a manual closing lever, a closing lever and a closing pull plate, and the manual closing The brake lever is slidably set on the mechanism mounting plate, the closing lever is rotatably set on the mechanism mounting plate, and the closing pull plate is movably set on the mechanism mounting plate; when closing, the The manual closing lever moves to the right, contacts the closing arm and makes the closing arm act, and pulls the closing pull plate, thereby lifting the closing latch upward. 4. A modularized operating mechanism for an intelligent circuit breaker according to claim 1, wherein the clutch gear further includes a pressure spring, a guide pin and a pressure plate, and the pressure spring is arranged on the transmission disc and Between the movable tongues, the movable tongue is forced to be ejected outward, the guide pin is fixedly arranged on the movable tongue, the pressing plate is fixedly arranged on the transmission disc, and the guide pin is slidably arranged on the movable tongue. The pressure plate is used to limit the stretching direction of the movable tongue. 5 . The modular operating mechanism of an intelligent circuit breaker according to claim 4 , wherein the driving gear includes a manual driving gear and an electric driving gear. 6 . 6. The modular operating mechanism of an intelligent circuit breaker according to claim 5, wherein the clutch limit plate starts to contact when the pin bearing is three degrees away from the closing pawl. The active tongue.