CN215069854U - Automatic tripping driving assembly of automatic energy storage operating mechanism - Google Patents

Abstract

The utility model relates to an automatic tripping driving assembly of an automatic energy storage operating mechanism, the automatic energy storage operating mechanism comprises a bracket, a crank arm assembly, an automatic energy storage driving assembly and a tripping assembly, the automatic tripping driving assembly comprises a tripping driving shaft arranged on the bracket, a one-way bearing arranged on the tripping driving shaft, a driving gear arranged on the one-way bearing and a tripping driving plate arranged on the tripping driving shaft, the tripping driving plate drives the tripping assembly to move to realize unlocking, and the driving gear receives an input signal of the automatic energy storage driving assembly; the automatic energy storage driving assembly positively rotates to drive the crank arm assembly to store energy, and the automatic energy storage driving assembly reversely rotates to unlock. The motor is used as a driving source, so that the working current is small, the output force is stable, the motor can frequently act and is less influenced by environmental factors, the motor can work under various voltages required by the application field, the number of parts is reduced by using the existing driving motor as the driving source, the structure is simplified, and the manufacturing cost is reduced.

Description

Automatic tripping driving assembly of automatic energy storage operating mechanism

Technical Field

The utility model belongs to the technical field of the circuit breaker control technique and specifically relates to an automatic energy storage operating device's automatic dropout drive assembly is related to.

Background

Most of electric operating mechanisms used by circuit breakers in the market can be remotely controlled, the opening time or closing time of the electric operating mechanisms is about 1 second, and the situation that the quick closing operation is received by a closing instruction cannot be met, so that the operating mechanism capable of reducing the closing operation time is needed.

At present, a plurality of energy storage type electric operating mechanisms capable of shortening the time to within 100 milliseconds exist in the market, the energy storage type electric operating mechanisms can store mechanical energy and release the mechanical energy to realize the purpose of rapid switching-on when switching-on is needed, and a Chinese patent (CN107910235B) discloses an energy storage operating mechanism of a circuit breaker, which mainly drives a crank arm assembly in the circuit breaker to move in a mode of an electric motor gear set, and releases the mechanical energy in a mode of an electromagnet to realize rapid switching-on.

In the prior art, an electromagnet coil is used as a power source, the force generated by the action of an electromagnet is instantaneous change force, the force is related to the ampere-turn number of current in the electromagnet coil and the air gap between a moving iron core and a static iron core, and the stability is poor; the working current is high during action, and the coil is easy to generate heat to increase the resistance of the coil when the coil is frequently moved, so that the ampere turns are reduced to reduce the output driving force to cause the unlocking function to fail; because the magnitude of the unlocking force is related to the ampere-turn number, the voltage of the electromagnetic coil is reduced in a certain volume to keep the ampere-turn number unchanged, the wire of the coil is thickened, and the number of turns is reduced; the coil current is excessive, the temperature is easy to rise rapidly during action, and the coil is burnt, so that the existing unlocking scheme is limited in the field of low-voltage specifications (24V and 48V).

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an automatic energy storage operating device's automatic tripping drive assembly who no longer uses electromagnetic technology to guarantee the security simultaneously is provided.

The utility model provides a technical scheme that its technical problem adopted is: an automatic tripping driving assembly of an automatic energy storage operating mechanism comprises a support, a crank arm assembly arranged on the support, an automatic energy storage driving assembly for driving the crank arm assembly to move, and a tripping assembly for unlocking the crank arm assembly, wherein the automatic tripping driving assembly comprises a tripping driving shaft arranged on the support, a tripping one-way bearing arranged on the tripping driving shaft, a tripping driving gear arranged on the tripping one-way bearing, and a tripping driving plate arranged on the tripping driving shaft; the automatic energy storage driving assembly positively rotates to drive the crank arm assembly to store energy, and the automatic energy storage driving assembly reversely rotates to unlock.

Further specifically, the trip driving plate comprises a first plate and a second plate, the first plate is fixed on the trip driving shaft, the second plate is fixed on the unlocking shaft of the trip assembly and can drive the unlocking shaft to rotate, the first plate is connected with the second plate, and the first plate rotates to drive the second plate to rotate.

Further specifically, the end of the joint of the first plate and the second plate is provided with a driving hole, the end of the joint of the second plate and the first plate is provided with a driving rod, the driving rod is inserted into the driving hole, and the diameter of the driving hole is larger than that of the driving rod.

More specifically, one side of the driving hole is open, and the driving hole pushes the driving rod to move from one side of the driving rod.

More specifically, the second plate is triangular, a first end of the second plate is fixed to the unlocking shaft, a second end of the second plate is connected with the first plate, a stabilizer bar is arranged at a third end of the second plate, an arc-shaped stabilizing groove is formed in the support, and the stabilizer bar is inserted into the stabilizing groove and can slide in the stabilizing groove.

Further specifically, the middle part of the first plate is provided with an arc-shaped abdicating groove, and the unlocking shaft is inserted into the abdicating groove.

Further specifically, a driving step is arranged at the end part of the tripping driving shaft connected with the first plate, and a connecting hole matched with the driving step is formed in the first plate.

Further specifically, the unlocking shaft is provided with a reset torsion spring, one end of the reset torsion spring is fixed on the support, and the other end of the reset torsion spring is fixed on the second plate.

Further specifically, the automatic energy storage driving assembly comprises a motor and a gear set, wherein the motor and the gear set are arranged on the support, and the gear set drives the crank arm assembly to move.

Further specifically, the gear set comprises a driving gear arranged on a motor shaft, a plurality of driven gears meshed with each other and a driving gear connected with a rotating shaft of the crank arm assembly, and a one-way bearing is arranged between the driving gear and the rotating shaft.

The utility model has the advantages that: the motor is used as a driving source, so that the working current is small, the output force is stable, the motor can frequently act and is less influenced by environmental factors, the motor can work under various voltages required by the application field, the number of parts is reduced by using the existing driving motor as the driving source, the structure is simplified, and the manufacturing cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a first schematic structural view of the crank arm assembly and the tripping assembly of the present invention;

fig. 3 is a schematic structural view of the crank arm assembly and the tripping assembly of the present invention;

fig. 4 is a schematic structural view of the unlocking plate of the present invention;

fig. 5 is a first schematic structural diagram of the automatic energy storage driving assembly and the automatic tripping control assembly according to the present invention;

fig. 6 is a schematic structural diagram of the automatic energy storage driving assembly and the automatic tripping control assembly according to the present invention;

fig. 7 is a first schematic structural view of the automatic trip control assembly of the present invention cooperating with the trip assembly;

fig. 8 is a schematic structural view of the automatic trip control assembly of the present invention cooperating with the trip assembly;

fig. 9 is a schematic structural view of a first plate in the automatic trip control assembly of the present invention;

fig. 10 is a schematic structural view of a second plate in the automatic trip control assembly of the present invention.

Fig. 11 is a third schematic structural view of the automatic trip control assembly and the trip assembly of the present invention;

fig. 12 is a schematic diagram of a second structure of the first plate of the automatic trip control assembly of the present invention.

In the figure: 1. a crank arm assembly; 11. a rotating shaft; 12. a first drive plate; 13. a second drive plate; 14. pushing the shaft; 151. a first support shaft; 152. a second support shaft; 153. a third support shaft; 154. a fourth support shaft; 16. a lock shaft; 17. the group is stirred; 171. the rotating shaft is shifted; 172. a U-shaped poking plate; 173. a guide shaft; 18. a crank arm resetting group; 181. a first pressure spring limiting piece; 182. a second pressure spring limiting piece; 183. a crank arm reset pressure spring; 19. a rotating shaft; 110. a push plate; 111. an arc-shaped slot;

2. a trip assembly; 21. unlocking the shaft; 211. unlocking the groove; 22. a latch shaft; 23. a locking plate;

3. a support; 31. a first side plate; 311. a guide groove; 32. a second side plate; 33. a side plate support shaft;

6. an automatic energy storage drive assembly; 61. a motor; 62. a driving gear; 63. a driven gear; 64. a drive gear;

7. an automatic trip drive assembly; 71. tripping the driving shaft; 72. tripping the one-way bearing; 73. a trip driving gear; 74. a first plate; 741. a drive aperture; 742. a yielding groove; 75. a second plate; 751. a drive rod; 752. a stabilizer bar.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

An automatic energy-storage operating mechanism as shown in figure 1 comprises

The connecting lever assembly 1 is used for driving a breaker handle to perform switching-off and switching-on actions, moving the connecting lever assembly 1 to the switching-off direction to store energy and moving the connecting lever assembly 1 to the switching-on direction to release energy;

the tripping assembly 2 is used for unlocking the crank arm assembly 1 so that the crank arm assembly 1 releases energy;

the bracket 3 is used for fixing the crank arm assembly 1, the tripping assembly 2 and the manual tripping driving assembly 4;

the automatic energy storage driving assembly 6 is used for remotely controlling and driving the crank arm assembly 1 to move towards the opening direction;

the automatic tripping driving assembly 7 is used for remotely controlling the tripping assembly 2 to realize unlocking;

the bracket 3 comprises a first side plate 31 and a second side plate 32 which are arranged in parallel, the first side plate 31 and the second side plate 32 are fixed through a plurality of side plate supporting shafts 33, the crank arm assembly 1 and the tripping assembly 2 are arranged between the first side plate 31 and the second side plate 32, and the automatic energy storage driving assembly 6 is arranged on the outer side of the second side plate 32.

As shown in fig. 2 and 3, the crank arm assembly 1 includes a rotating shaft 11 disposed between a first side plate 31 and a second side plate 32, a first driving plate 12 and a second driving plate 13 disposed around the rotating shaft 11, a pushing shaft 14 disposed between the first driving plate 12 and the second driving plate 13, a plurality of supporting shafts disposed between the first driving plate 12 and the second driving plate 13, a locking shaft 16 disposed between the first driving plate 12 and the second driving plate 13, a toggle set 17 for toggling a handle of a circuit breaker, a crank arm resetting set 18 for resetting, a rotating shaft 19 fixed on a bracket 3, and a pushing plate 110 disposed on the rotating shaft 19; the first driving plate 12 and the second driving plate 13 are similar to an inverted triangle in shape, the rotating shaft 11 is arranged at the upper left of the triangle, the supporting shafts are four, namely a first supporting shaft 151 located at the upper right, a second supporting shaft 152 located at the upper left and below the rotating shaft 11, a third supporting shaft 153 located at the middle part of the right side and a fourth supporting shaft 154 located at the middle lower part, the pushing shaft 14 is located at the middle part of the left side, and the locking shaft 16 is located at the middle lower part of the left side; arc-shaped grooves 111 with the same shape are formed in the middle of the first driving plate 12 and the second driving plate 13, the rotating shaft 19 penetrates through the arc-shaped grooves 111, the rotating shaft 19 is connected with the automatic energy storage driving assembly 6, the pushing plate 110 is a cam, the rotating shaft 19 rotates to drive the pushing plate 110 to rotate, the pushing plate 110 pushes the pushing shaft 14 to the left side in the opening direction, and therefore the locking shaft 16 is matched with the tripping assembly 1.

As shown in fig. 3, the crank arm resetting group 18 includes a first compression spring limiting member 181 disposed on the first support shaft 151, a second compression spring limiting member 182 disposed on the support 3, and a crank arm resetting compression spring 183 disposed between the first compression spring limiting member 181 and the second compression spring limiting member 182, the first compression spring limiting member 181 is rotatably connected to the first support shaft 151, the second compression spring limiting member 182 is rotatably connected to the support 3, when the crank arm assembly 1 moves to the left, i.e., the crank arm assembly 1 rotates clockwise around the rotating shaft 11 as a whole, the first compression spring limiting member 181 and the second compression spring limiting member 182 compress the crank arm resetting compression spring 183, at this time, the crank arm assembly 1 is in the energy storage stage, and when the crank arm assembly 1 moves to the leftmost end, the trip assembly 2 can lock the crank arm assembly 1, the energy storage is completed, then the trip assembly 2 is controlled by the automatic trip driving assembly 7 to unlock the crank arm assembly 1, then the first support shaft 151 is pushed to rotate counterclockwise around the rotating shaft 11 by the automatic trip resetting compression spring 183, the crank arm assembly 1 is quickly moved from the left side to the right side as a whole, and unlocking is completed.

As shown in fig. 2 and 3, the toggle assembly 17 includes a toggle rotation shaft 171 disposed between the first driving plate 12 and the second driving plate 13, a U-shaped toggle plate 172 rotating around the toggle rotation shaft 171, and a guide shaft 173 disposed outside the U-shaped toggle plate 172, the toggle rotation shaft 171 is located at the bottom of the first driving plate 12 and the second driving plate 13, the bracket 3 is provided with a guide slot 311, the guide shaft 173 is inserted into the guide slot 311 and can slide in the guide slot 311, a handle of the circuit breaker is clamped in the U-shaped toggle plate 172, and the closed accommodating portion formed by the U-shaped toggle plate 172 and the toggle rotation shaft 171 drives the handle of the circuit breaker to move in a closing direction or an opening direction.

As shown in fig. 2, the trip assembly 2 is disposed on a rotatable unlocking shaft 21 of the bracket 3, a rotatable locking shaft 22 disposed on the bracket 3, and a locking plate 23 fixed on the locking shaft 22, and a reset torsion spring is disposed on the unlocking shaft 21; the locking shaft 22 is located in the middle of the locking plate 23, the two ends of the locking plate 23 are respectively a first end and a second end, the first end is provided with a locking notch 231 (as shown in fig. 4) with a downward opening, the second end abuts against the unlocking shaft 21 during operation, the unlocking shaft 21 is provided with an unlocking groove 211, the locking shaft 16 on the crank arm assembly 1 enters the locking notch 231 from below and pushes the locking plate 23 to move clockwise, meanwhile, the locking shaft 22 is provided with a reset torsion spring for resetting the locking plate 23, when the locking shaft 16 on the crank arm assembly 1 moves to a limit position, the pushing plate 110 on the crank arm assembly 1 reaches the limit position, at this time, the pushing plate 110 no longer limits the movement of the crank arm assembly 1, the crank arm assembly 1 has a tendency of moving rightward due to the action of the crank arm resetting group 18, and at this time, the locking notch 231 locks the locking shaft 16, so that the crank arm assembly 1 cannot move rightward; in the locked state, the notch of the unlocking groove 211 is staggered downwards with the second end of the locking plate 23, in the unlocked state, the unlocking shaft 21 rotates anticlockwise to enable the notch of the unlocking groove 211 to rotate anticlockwise until the unlocking groove 211 is aligned with the first end of the locking plate 23, the first end of the locking plate 23 can rotate anticlockwise through the unlocking groove 211, the locking notch of the first end of the locking plate 23 rotates anticlockwise, the locking shaft 16 is separated from the limit of the locking notch 231, and the crank arm assembly 1 moves rightwards under the action of the crank arm resetting group 18.

As shown in fig. 5 and fig. 6, the automatic energy storage driving assembly 6 includes a motor 61 and a gear set, the gear set drives the crank arm assembly 1 to move, the motor 61 is disposed between the first side plate 31 and the second side plate 32, the motor shaft thereof extends through the second side plate 32, the gear set includes a driving gear 62 disposed on the motor shaft, a plurality of driven gears 63 engaged with each other, and a driving gear 64 connected to the rotating shaft 19 of the crank arm assembly 1, the driving gear 64 is connected to the rotating shaft 19 through a one-way bearing, the motor 61 is remotely controlled to move, so that the crank arm assembly 1 is driven to move leftward through the rotation of the rotating shaft 19, due to the arrangement of the one-way bearing, the motor 61 can drive the crank arm assembly 1 to move in forward rotation, and when it rotates reversely, the crank arm assembly 1 is not driven to move.

As shown in fig. 5-8, the automatic trip driving assembly 7 includes a trip driving shaft 71 disposed on the second side plate 32, a trip one-way bearing 72 disposed on the trip driving shaft 71, a trip driving gear 73 disposed on the trip one-way bearing 72, and a trip driving plate disposed on the trip driving shaft 71, wherein the trip driving plate drives the trip shaft 21 on the trip assembly 2 to rotate, when the motor 61 rotates forward, the trip driving gear 73 rotates along with the driving gear 64 due to the action of the trip one-way bearing 72, and the trip driving shaft 71 does not rotate, when the motor 61 rotates backward, the trip driving shaft 71 rotates along with the driving gear 64 to drive the trip driving plate to rotate, and the trip driving plate drives the trip shaft 21 to rotate to realize remote unlocking.

The trip driving plate shown in fig. 9 and 10 includes a first plate 74 and a second plate 75, a first end of the first plate 74 is connected to the trip driving shaft 71, and a first end of the first plate 74 rotates as the trip driving shaft 71 rotates; a first end of the second plate 75 is fixed to the unlocking shaft 21, and a second end is connected to a second end of the first plate 74; the second end of the first plate 74 is provided with a driving hole 741, the second end of the second plate 75 is provided with a driving rod 751, the driving rod 751 is inserted into the driving hole 741, and meanwhile, the diameter of the driving hole 741 needs to be ensured to be larger than that of the driving rod 751, so that the first plate 74 can drive the second plate 75 to rotate conveniently; the second plate 75 is triangular, a stabilizer 752 is disposed at a third end of the second plate 75, a stabilizing groove is disposed on the bracket 3, and the stabilizer 752 slides in the stabilizing groove, so that the operation is more stable. In practical use, after the driving hole 741 is matched with the driving rod 751, the unlocking shaft 16 cannot be rotated in other ways, that is, the unlocking shaft cannot be manually unlocked, so that the functionality is single, and the structure is not suitable for both manual unlocking and automatic unlocking, as shown in fig. 11 and 12, the driving hole 741 is designed to be open on one side, the driving rod 751 can only be pushed to move on one side of the driving hole 741, and is not limited on the other side, so that the stored energy can be released in other ways.

An arc-shaped yielding groove 742 is formed in the middle of the first plate 74, the end of the unlocking shaft 21 is inserted into the yielding groove 742, the yielding groove 742 has a yielding function, interference on the unlocking shaft 21 is avoided when the first plate 74 rotates, space is well utilized, and the weight of components is reduced. A return torsion spring is provided on the unlocking shaft 21, and one end of the return torsion spring is fixed to the second side plate 32 and the other end is fixed to the second plate 75.

In conclusion, the motor is used as the driving source, so that the working current is small, the output force is stable, the motor can frequently act and is less influenced by environmental factors when acting, the motor can work under various voltages required by the application field, and the number of parts is reduced, the structure is simplified and the manufacturing cost is reduced by using the conventional driving motor as the driving source.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims (10)

1. An automatic tripping driving component of an automatic energy storage operating mechanism, the automatic energy storage operating mechanism comprises a bracket (3), a crank arm component (1) arranged on the bracket (3), an automatic energy storage driving component (6) for driving the crank arm component (1) to move, and a tripping component (2) for unlocking the crank arm component (1), it is characterized in that the automatic tripping driving component (7) comprises a tripping driving shaft (71) arranged on the bracket (3), a tripping one-way bearing (72) arranged on the tripping driving shaft (71), a tripping driving gear (73) arranged on the tripping one-way bearing (72) and a tripping driving plate arranged on the tripping driving shaft (71), the tripping driving plate drives the tripping assembly (2) to move to realize unlocking, and the tripping driving gear (73) receives an input signal of the automatic energy storage driving assembly (6); the automatic energy storage driving assembly (6) positively rotates to drive the crank arm assembly (1) to store energy, and the automatic energy storage driving assembly (6) reversely rotates to unlock.

2. The trip driving assembly according to claim 1, wherein the trip driving plate comprises a first plate (74) and a second plate (75), the first plate (74) is fixed to the trip driving shaft (71), the second plate (75) is fixed to the trip shaft (21) of the trip assembly (2) and drives the trip shaft (21) to rotate, the first plate (74) is connected to the second plate (75), and the rotation of the first plate (74) drives the second plate (75) to rotate.

3. The trip drive assembly of an automatic energy storage operating mechanism according to claim 2, wherein a driving hole (741) is formed at an end of a connection portion of the first plate (74) and the second plate (75), a driving rod (751) is formed at an end of a connection portion of the second plate (75) and the first plate (74), the driving rod (751) is inserted into the driving hole (741), and the diameter of the driving hole (741) is larger than that of the driving rod (751).

4. The trip drive assembly of the automatic energy storage operating mechanism according to claim 3, wherein the driving hole (741) is opened at one side, and the driving hole (741) pushes the driving rod (751) to move from one side of the driving rod (751).

5. The trip actuator assembly of claim 3, wherein the second plate (75) has a triangular shape, a first end of the second plate (75) is fixed to the trip shaft (21), a second end of the second plate (75) is connected to the first plate (74), a stabilizer bar (752) is disposed at a third end of the second plate (75), an arc-shaped stabilizer groove is disposed in the bracket (3), and the stabilizer bar (752) is inserted into the stabilizer groove and can slide therein.

6. The trip actuating assembly of an automatic energy-storing operating mechanism according to claim 2, wherein an arc-shaped recess (742) is formed in the middle of the first plate (74), and the unlocking shaft (21) is inserted into the recess (742).

7. The automatic trip driving assembly of an automatic energy storage operating mechanism according to claim 2, wherein the end of the trip driving shaft (71) connected to the first plate (74) is provided with a driving step, and the first plate (74) is provided with a connecting hole matched with the driving step.

8. The trip actuating assembly of an automatic energy-storing operating mechanism according to claim 5, wherein a return torsion spring is provided on the unlocking shaft (21), one end of the return torsion spring is fixed on the bracket (3), and the other end is fixed on the second plate (75).

9. The automatic trip driving assembly of an automatic energy storage operating mechanism according to claim 1, wherein the automatic energy storage driving assembly (6) comprises a motor (61) arranged on the bracket (3) and a gear set, and the gear set drives the crank arm assembly (1) to move.

10. The trip driving unit of an automatic energy-storing operating mechanism according to claim 9, wherein the gear set includes a driving gear (62) provided on a motor shaft, a plurality of driven gears (63) engaged with each other, and a driving gear (64) connected to the rotating shaft (19) of the crank arm assembly (1), and a one-way bearing is provided between the driving gear (64) and the rotating shaft (19).

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