Adjusting device for a double-gold mechanism of a circuit breaker

Abstract

The application provides a kind of adjusting device of circuit breaker double gold mechanism, including adjusting motor, rotary transmission mechanism and adjusting mechanism.The adjusting motor is provided with motor rotating shaft.The adjusting mechanism is provided with adjusting rod.The rotary transmission mechanism is arranged between adjusting motor and adjusting mechanism.The rotary transmission mechanism includes a one-way bearing, a transmission connecting piece and two or more radial compression structures.The one-way bearing is sleeved on the motor rotating shaft.The transmission connecting piece is sleeved on the one-way bearing.Two or more radial compression structures are symmetrically arranged on the transmission connecting piece.The radial compression structure radially compresses the motor rotating shaft and can drive the transmission connecting piece to rotate with the motor rotating shaft.The adjusting device of circuit breaker double gold mechanism of the application is not only simple to operate, but also can keep the stability of adjusting time, improve production efficiency, improve product quality and avoid quality risk.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of low-voltage electrical, in particular to an adjusting device of a double metal mechanism of a circuit breaker. BACKGROUND

[0002] At present, most circuit breakers use a bimetallic element as an executing element of thermal tripping characteristics. The bimetallic element can drive a tripping unit of an operating mechanism to trip the circuit breaker when the circuit breaker is overloaded, thereby playing a role of overload protection. In the production and manufacturing process of the circuit breaker, the bimetallic element of the double metal mechanism needs to be adjusted to a specific position, so that the thermal tripping performance of the circuit breaker meets the requirements.

[0003] In the prior art, when the bimetallic element is adjusted, the adjusting head of the adjusting device is directly inserted into the bimetallic mechanism of the circuit breaker, and then the adjusting motor of the adjusting device drives the adjusting head to adjust the bimetallic element; when the adjustment is completed, the adjusting motor drives the adjusting head to rotate back to the initial position. However, this requires that the adjusting head of the adjusting device is kept at the same position (angle) every time the adjustment is started, so it cannot guarantee the stability of the adjustment time. In addition, it is also required that the adjusting screw of the bimetallic mechanism of the circuit breaker is located at the same position before adjustment. SUMMARY

[0004] The purpose of the present application is to provide an adjusting device of a double metal mechanism of a circuit breaker, which is simple to operate, does not need to find the original position after adjustment, can keep the stability of the adjustment time, and can improve the production efficiency, improve the product quality, avoid the quality risk.

[0005] The application provides a regulating device for a double-gold mechanism of a circuit breaker, which comprises a regulating motor, a rotating transmission mechanism and a regulating mechanism. The regulating motor is provided with a motor rotating shaft. The regulating mechanism is provided with a regulating rod. The rotating transmission mechanism is arranged between the regulating motor and the regulating mechanism. The rotating transmission mechanism comprises a one-way bearing, a transmission connecting piece and two or more radial compression structures. The one-way bearing is sleeved on the motor rotating shaft. The transmission connecting piece is sleeved on the one-way bearing. The two or more radial compression structures are symmetrically arranged on the transmission connecting piece. The radial compression structures compress the motor rotating shaft in the radial direction of the motor rotating shaft and can drive the transmission connecting piece to rotate with the motor rotating shaft. The regulating device for the double-gold mechanism of the circuit breaker can transmit the rotation of the regulating motor to the regulating mechanism through the rotating transmission mechanism. Specifically, when the regulating motor rotates forward, the one-way bearing drives the transmission connecting piece to rotate forward and drives the regulating mechanism to rotate forward; when the regulating motor reverses, if the regulating mechanism is subjected to small resistance, the radial compression structures rotate with the motor rotating shaft due to the static friction between the radial compression structures and the motor rotating shaft and further transmit the reverse rotation to the regulating mechanism; if the regulating mechanism is subjected to large resistance, the motor rotating shaft and the radial compression structures rotate relative to each other, and the regulating mechanism no longer rotates with the regulating motor. Therefore, the regulating device for the double-gold mechanism of the circuit breaker can quickly cooperate with the adjusting screw of the double-gold mechanism before the double-gold mechanism is adjusted, the adjusting screw of the double-gold mechanism is not reversed, the regulating device is easy to operate, the stability of the adjusting time is ensured, and the production efficiency is improved.

[0006] In another illustrative embodiment of the regulating device for the double-gold mechanism of the circuit breaker, each radial compression structure comprises a bolt which is threadedly connected to the transmission connecting piece, and an end of the bolt compresses the motor rotating shaft in the radial direction of the motor rotating shaft. The regulating device can set the size of the reverse rotation setting force through the bolt to support the adjustment of the double-gold mechanism of the circuit breaker of different models.

[0007] In another illustrative embodiment of the regulating device for the double-gold mechanism of the circuit breaker, each radial compression structure further comprises a shaft holding compression block which is located between the bolt and the motor rotating shaft, and an end of the bolt compresses the motor rotating shaft through the shaft holding compression block. The shaft holding compression block can increase the contact area between the radial compression structure and the motor rotating shaft and protect the motor rotating shaft to reduce wear.

[0008] In another illustrative embodiment of the regulating device for the double-gold mechanism of the circuit breaker, the shapes of the opposite surfaces of the shaft holding compression block and the motor rotating shaft are matched with each other.

[0009] In another illustrative embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, the motor rotating shaft comprises a motor shaft connecting block arranged at the end of the motor rotating shaft by a first bolt, and the radial pressing structure presses the motor shaft connecting block in the radial direction of the motor rotating shaft. The motor shaft connecting block can facilitate the assembly of the adjusting device of the double-gold mechanism of the circuit breaker, and can further protect the main body of the motor rotating shaft. After long-term use, the motor shaft connecting block is worn due to the action of the radial pressing structure, and the main body of the motor rotating shaft does not need to be replaced, thereby reducing the cost.

[0010] In another illustrative embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, the opposite surfaces of the shaft pressing block of the radial pressing structure and the motor shaft connecting block are adapted to each other.

[0011] In another illustrative embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, the inner wall of the transmission connecting piece is provided with a limiting convex ring and a limiting groove. The limiting convex ring is arranged at the end of the transmission connecting piece away from the adjusting motor (10), and the stepped surface of the motor shaft connecting block towards the adjusting motor abuts against the limiting convex ring. The limiting groove is arranged between the one-way bearing and the adjusting motor, and a C-shaped buckle is arranged in the limiting groove, which is used to prevent the one-way bearing from being pulled out of the transmission connecting piece. The adjusting device of the double-gold mechanism of the circuit breaker is easy to assemble and has high reliability.

[0012] In another illustrative embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, the inner wall of the transmission connecting piece is further provided with a first step and a second step, and the first step and the second step are located between the limiting convex ring and the limiting groove. The adjusting device of the double-gold mechanism of the circuit breaker is easy to assemble, and is more stable and safe in use.

[0013] In another illustrative embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, the bolt is a ball plug bolt, a nut is arranged on the ball plug bolt, and a lock washer is arranged between the nut and the transmission connecting piece. The adjusting device of the double-gold mechanism of the circuit breaker can set a more accurate reverse rotation setting force through the ball plug bolt.

[0014] In another illustrative embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, a ball bearing is further included, which is sleeved on the motor rotating shaft and located between the one-way bearing and the radial pressing structure or between the one-way bearing and the adjusting motor. The adjusting device of the double-gold mechanism of the circuit breaker further improves the service life and stability of the adjusting device through the ball bearing.

[0015] In another exemplary embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, the adjusting mechanism is provided with an adjusting mechanism connector and an adjusting rod. The adjusting mechanism connector is connected to the transmission connector by a second bolt. The adjusting rod comprises a connecting rod and an adjusting head, and the adjusting head is arranged at the end of the connecting rod.

[0016] In another exemplary embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, the adjusting mechanism is further provided with an adjusting head buffer mechanism, which comprises a buffer block and a buffer spring. One end of the buffer block is connected to the adjusting mechanism connector, and the other end is provided with a spring accommodating cavity. The buffer spring is arranged in the spring accommodating cavity, one end of the buffer spring is connected to the buffer block, and the other end is connected to the connecting rod. The adjusting head buffer mechanism of the adjusting device of the double-gold mechanism of the circuit breaker can protect the product by the buffer spring inside when the adjusting head enters the circuit breaker product, preventing the circuit breaker product from being damaged by collision.

[0017] In another exemplary embodiment of the adjusting device of the double-gold mechanism of the circuit breaker, two buffer limiting grooves are symmetrically arranged on the buffer block, and the buffer limiting grooves extend along the axis direction of the connecting rod. One end of the connecting rod towards the adjusting mechanism connector is provided with a limiting pin (333), which is fixedly installed on the connecting rod (332) along the direction perpendicular to the axis of the connecting rod, and the two ends of the limiting pin are arranged in or pass through the two buffer limiting grooves, respectively. BRIEF DESCRIPTION OF DRAWINGS

[0018] The following drawings are only illustrative and explanatory of the present application, and do not limit the scope of the present application.

[0019] Figure 1 The structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application.

[0020] Figure 2 The structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 1 The exploded view of the adjusting device.

[0021] Figure 3 The structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 1 The A-A sectional view of the adjusting device.

[0022] Figure 4 The structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 1 The structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application.

[0023] Figure 5 The structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 1 The B-B sectional view of the adjusting device.

[0024] Figure 6 For Figure 5 A local enlarged view of the M region.

[0025] Wherein, the reference signs are as follows:

[0026] 10 adjusting motor 23 ball bearing 312 third bolt

[0027] 11 motor shaft 24 radial pressing structure 32 adjusting head buffer mechanism

[0028] 111 motor shaft connecting block 241 ball head plug bolt 321 buffer block

[0029] 112 first bolt 242 shaft holding pressing block 322 spring accommodating cavity

[0030] 20 rotary transmission mechanism 243 nut 323 buffer spring

[0031] 21 transmission connecting piece 244 lock washer 324 buffer limiting groove

[0032] 211 limiting convex ring 25 C-shaped clasp 33 adjusting rod

[0033] 212 limiting groove 30 adjusting mechanism 331 adjusting head

[0034] 22 one-way bearing 31 adjusting mechanism connecting piece 332 connecting rod

[0035] 221 flat key 311 second bolt 333 limiting pin DETAILED DESCRIPTION

[0036] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described below with reference to the drawings, wherein the same reference signs represent the same or similar parts having the same function.

[0037] In this document, “illustrative” means “serving as an example, instance, or illustration,” and should not necessarily be construed as preferred or advantageous over other examples, implementations, or embodiments.

[0038] In order to make the drawings simple, only the parts related to the present application are schematically shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts having the same structure or function is schematically shown, or only one of them is marked.

[0039] In the present text, "one" means not only "only one", but also "more than one". In the present text, "first", "second", etc. are only used to distinguish each other, but not to indicate their importance and order, etc.

[0040] Figure 1 Structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 2 Structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 1 Exploded view of the adjusting device. Figure 3 Structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 1 A-A sectional view of the adjusting device. Figure 4 Structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application. Figure 1 Structure diagram of the adjusting device of the double-gold mechanism of the circuit breaker according to an embodiment of the present application.

[0041] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the adjusting device of the double-gold mechanism of the circuit breaker comprises an adjusting motor 10, a rotation transmission mechanism 20 and an adjusting mechanism 30. The adjusting motor 10 is provided with a motor rotating shaft 11. The adjusting mechanism 30 is provided with an adjusting rod 33, which is used to extend into the inside of the circuit breaker product to adjust the double-gold mechanism of the circuit breaker product. The rotation transmission mechanism 20 is arranged between the adjusting motor 10 and the adjusting mechanism 30.

[0042] As shown in Figure 2 and Figure 3 , the rotation transmission mechanism 20 of the adjusting device of the double-gold mechanism of the circuit breaker comprises a transmission connecting piece 21, a one-way bearing 22 and two radial compression structures 24. The one-way bearing 22 is sleeved on the motor rotating shaft 11, and a flat key 221 is arranged between the one-way bearing 22 and the motor rotating shaft 11 and between the one-way bearing 22 and the transmission connecting piece 21. The transmission connecting piece 21 is sleeved on the one-way bearing 22. The two radial compression structures 24 are symmetrically arranged on the transmission connecting piece 21. The radial compression structure 24 compresses the motor rotating shaft 11 in the radial direction of the motor rotating shaft 11 and can drive the transmission connecting piece 21 to rotate with the motor rotating shaft 11. The adjusting device of the double-gold mechanism of the circuit breaker transmits the rotation of the motor rotating shaft 11 to the adjusting mechanism 30 through the rotation transmission mechanism 20. Specifically, when the adjusting motor 10 rotates forward, the one-way bearing 22 drives the transmission connecting piece 21 to rotate forward to drive the adjusting mechanism 30 to rotate forward. When the adjusting motor 10 reverses, if the adjusting mechanism 30 is subjected to a small resistance, the radial compression structure 24 rotates with the motor rotating shaft 11 due to the static friction between the radial compression structure 24 and the motor rotating shaft 11, and further transmits the reverse rotation to the adjusting mechanism 30. If the adjusting mechanism 30 is subjected to a large resistance, the motor rotating shaft 11 and the radial compression structure 24 rotate relatively, and the adjusting mechanism 30 no longer reverses with the adjusting motor 10.

[0043] Further, as shown in Figure 2 and Figure 3 , a ball bearing 23 is arranged in the rotary transmission mechanism 20 of the adjusting device of the circuit breaker bimetallic mechanism of the present application. The ball bearing 23 is sleeved on the motor shaft 11, and can be arranged between the one-way bearing 22 and the adjusting motor 10, or between the one-way bearing 22 and the adjusting mechanism 30. The ball bearing can share the radial pressure received by the one-way bearing 22, so as to improve the stability and service life of the adjusting device of the circuit breaker bimetallic mechanism.

[0044] The use method of the adjusting device of the present application is described as follows. Before adjustment, the adjusting motor 10 of the adjusting device of the present application drives the adjusting head 331 to rotate reversely, and the adjusting head 331 is extended into the bimetallic support, and gradually approaches the adjusting screw of the bimetallic mechanism until the adjusting head 331 cooperates with the adjusting screw. When the adjusting head 331 cooperates with the adjusting screw, the adjusting head 331 receives a larger resistance force applied by the adjusting screw. At this time, the resistance force received by the radial compression structure 24 is greater than the reverse rotation setting force of the radial compression structure 24, the adjusting head 331 stops rotating, and the relative rotation occurs between the radial compression structure 24 and the motor shaft 11, without reversing the bimetallic mechanism. When the preset time is reached, the adjusting motor 10 is driven to rotate forward to start adjusting the bimetallic mechanism. Therefore, unlike the prior art adjusting device, the adjusting device of the circuit breaker bimetallic mechanism of the present application does not need to search for the original position (angle) of the adjusting head 331 after the adjustment is completed, and does not need to require that the adjusting screws of the bimetallic mechanisms of the circuit breaker products to be adjusted are in the same initial position (angle) before adjustment, so as to ensure the stability of the adjustment time and improve the production efficiency.

[0045] In addition to the embodiment shown in Figure 2 , the radial compression structure 24 of the adjusting device of the circuit breaker bimetallic mechanism of the present application can also be arranged in other numbers, for example, three, four, etc., and the plurality of radial compression structures 24 are symmetrically arranged on the transmission connecting piece 21.

[0046] As shown in Figure 4 ( Figure 4 , the transmission connecting piece 21 is indicated by a dashed line) and Figure 6As shown, the adjusting device for the double-gold mechanism of the circuit breaker of the present application, each radial pressing structure 24 comprises a bolt and a shaft-holding pressing block 242. The bolt is threadedly connected to the transmission connecting member 21. The shaft-holding pressing block 242 is located between the bolt and the motor shaft 11, and the end of the bolt presses the motor shaft 11 through the shaft-holding pressing block 242. Rotating the bolt can set the size of the reverse rotation setting force of the radial pressing structure 24. After the ball head plunger bolt 241 adjusts the reverse rotation setting force, the locking nut 243 is tightened. The shaft-holding pressing block 242 can increase the contact area between the radial pressing structure 24 and the motor shaft 11, and also can protect the motor shaft 11 and reduce the wear of the adjusting device. The bolt is preferably a ball head plug bolt 241, and a nut 243 can be arranged on the ball head plug bolt 241, and a lock washer 244 can be arranged between the nut 243 and the transmission connecting member 21. The ball head plug bolt can more accurately set the size of the reverse rotation setting force of the radial pressing structure 24. Further, the shapes of the opposite surfaces of the shaft-holding pressing block 242 and the motor shaft 11 can be adapted to each other to further increase the contact area between the shaft-holding pressing block 242 and the motor shaft 11.

[0047] In addition to the radial pressing structure 24 shown in Figure 4 and Figure 6 , the shaft-holding pressing block 242 can be omitted in the radial pressing structure 24. In this scheme, the end of the bolt directly abuts against the motor shaft 11 and radially presses the motor shaft 11. Rotating the bolt can set the size of the reverse rotation setting force, and thus can support the adjustment of the double-gold mechanism of circuit breakers of different models.

[0048] As described in Figure 4 and Figure 6 , the motor shaft 11 can further comprise a motor shaft connecting block 111. The motor shaft connecting block 111 is arranged at the end of the motor shaft 11 through the first bolt 112, and the radial pressing structure 24 radially presses the motor shaft connecting block 111. The motor shaft connecting block 111 can facilitate the assembly of the adjusting device for the double-gold mechanism of the circuit breaker, and further protect the motor shaft body. After a long period of use, the motor shaft connecting block 111 is worn due to the action of the radial pressing structure, and at this time, only the motor shaft connecting block needs to be replaced, without the need to replace the motor shaft body, thereby reducing the cost. Further, the shapes of the opposite surfaces of the shaft-holding pressing block 242 of the radial pressing structure 24 and the motor shaft connecting block 111 can be adapted to each other.

[0049] In addition to the radial pressing structure 24 shown in Figure 4 and Figure 6In addition to the "radial compression structure 24 radially compresses the motor shaft connecting block 111 of the motor shaft 11" mode shown in FIG. 1, a "radial compression structure 24 radially compresses the main body of the motor shaft 11 of the motor shaft 11" mode can also be adopted. The radial compression structure 24 can be arranged between the one-way bearing 22 and the motor shaft connecting block 111, or between the one-way bearing 22 and the adjusting motor 10.

[0050] Figure 5 For Figure 1 A B-B sectional view of the adjusting device. The adjusting mechanism 30 is provided with an adjusting mechanism connecting piece 31 and an adjusting rod 33. The adjusting mechanism connecting piece 31 is connected to the transmission connecting piece 21 by a second bolt 311. The adjusting rod 33 includes a connecting rod 332 and an adjusting head 331, and the adjusting head 331 is assembled to the end of the connecting rod 332. The adjusting head 331 can be selected according to the model of the circuit breaker product. Further, the adjusting mechanism 30 is also provided with an adjusting head buffer mechanism 32. The adjusting head buffer mechanism 32 includes a buffer block 321 and a buffer spring 323. One end of the buffer block 321 is connected to the adjusting mechanism connecting piece 31, and the other end is provided with a spring accommodating cavity 322. The buffer spring 323 is arranged in the spring accommodating cavity 322, one end of the buffer spring 323 is connected to the buffer block 321, and the other end is connected to the connecting rod 332. The adjusting head buffer mechanism 32 of the circuit breaker double gold mechanism adjusting device can protect the product by the buffer spring 323 inside when the adjusting head 331 enters the circuit breaker product, preventing the circuit breaker product from being damaged by impact.

[0051] Further, two buffer limiting grooves 324 are symmetrically arranged on the buffer block 321, and the buffer limiting grooves 324 extend along the axis direction of the connecting rod 332. One end of the connecting rod 332 towards the adjusting mechanism connecting piece 31 is provided with a limiting pin 333, which is fixedly installed on the connecting rod 332 along the direction perpendicular to the axis of the connecting rod 332, and the two ends of the limiting pin 333 are arranged in or pass through the two buffer limiting grooves 324 respectively. The buffer limiting grooves 324 and the limiting pin 333 can make the connecting rod 332 move a certain distance in the axial direction within the buffer block 321, and make the connecting rod 332 rotate synchronously with the buffer block 321.

[0052] As Figure 3 shown, the buffer block 321 is fixed to the adjusting mechanism connecting piece 31 by a third bolt 312.

[0053] Figure 6 For Figure 5 a partial enlarged view of the M area.

[0054] As Figure 4 and Figure 6As shown, the inner wall of the transmission connecting piece 21 is provided with a limiting convex ring 211 and a limiting groove 212 (see Figure 4 ). The limiting convex ring 211 is arranged at the end of the transmission connecting piece 21 away from the adjusting motor 10, and the stepped surface of the motor shaft connecting block 111 towards the adjusting motor 10 abuts against the limiting convex ring 211. The limiting groove 212 is arranged between the one-way bearing 22 and the adjusting motor 10, and a C-shaped buckle 25 (see Figure 4 ) is arranged in the limiting groove 212, which is used to prevent the one-way bearing 22 from being pulled out of the transmission connecting piece 21. The inner wall of the transmission connecting piece 21 is further provided with a first step and a second step, which are located between the limiting convex ring 211 and the limiting groove 212. The circuit breaker double gold mechanism adjusting device of the present application is easy to assemble, and is more stable, safe and reliable.

[0055] During assembly, the motor shaft connecting block 111 is first assembled to the transmission connecting piece 21, and abuts against the limiting convex ring 211; the shaft holding and pressing block 242 is then placed into the transmission connecting piece 21, and abuts against the other side of the limiting convex ring 211; the one-way bearing 22 and the ball bearing 23 are then assembled into the transmission connecting piece 21, and abut against the first step and the second step in sequence, and the C-shaped buckle 25 is then assembled into the limiting groove 212; then, the assembled transmission connecting piece 21 is assembled to the motor rotating shaft 11, and the first bolt 112 is assembled to the motor shaft connecting block 111 and the motor rotating shaft 11; finally, the adjusting mechanism connecting piece 31 is assembled to the transmission connecting piece 21 through the second bolt 311.

[0056] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0057] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application, and equivalent embodiments or changes made without departing from the spirit of the present application, such as the combination, division or repetition of features, should be included in the protection scope of the present application.

Claims

1. An adjusting device for a double gold mechanism of a circuit breaker, characterized by, The utility model relates to a kind of rotary transmission mechanism (20), which is arranged between the adjusting motor (10) and the adjusting mechanism (30), and the rotary transmission mechanism (20) includes: A one-way bearing (22) is sleeved on the motor shaft (11); A transmission connecting piece (21) is sleeved on the one-way bearing (22), and the one-way bearing (22) can drive the transmission connecting piece (21) to rotate forward;And Two or more radial compression structures (24) are symmetrically arranged on the transmission connecting piece (21), and the radial compression structure (24) radially compresses the motor shaft (11) on the motor shaft (11) and can drive the transmission connecting piece (21) to rotate with the motor shaft (11). Each radial compression structure (24) includes: A bolt is threadedly connected to the transmission connecting piece (21), and the end of the bolt radially compresses the motor shaft (11) on the motor shaft (11). Each radial compression structure (24) further includes:

2. The adjusting device of a double gold mechanism of a circuit breaker according to claim 1, characterized in that, A shaft clamping compression block (242) is located between the bolt and the motor shaft (11), and the end of the bolt compresses the motor shaft (11) through the shaft clamping compression block (242). The surface shape of the shaft clamping compression block (242) opposite to the motor shaft (11) is matched with each other.

3. The adjusting device of a dual gold mechanism of a circuit breaker according to claim 2, characterized in that, The motor shaft (11) includes: A motor shaft connecting block (111) is arranged at the end position of the motor shaft (11) by a first bolt (112), and the radial compression structure (24) radially compresses the motor shaft connecting block (111) on the motor shaft (11).

4. The adjusting device of a dual gold mechanism of a circuit breaker according to claim 3, characterized in that, The surface shape of the shaft clamping compression block (242) of the radial compression structure (24) opposite to the motor shaft connecting block (111) is matched with each other.

5. The adjusting device of a double-on mechanism of a circuit breaker according to claim 3 or 4, characterized in that, The inner wall of the transmission connecting piece (21) is provided with: A limiting convex ring (211) is arranged at one end of the transmission connecting piece (21) away from the adjusting motor (10), and the stepped surface of the motor shaft connecting block (111) towards the adjusting motor (10) abuts against the limiting convex ring (211);And 6. The adjusting device of a dual gold mechanism of a circuit breaker according to claim 5, wherein A limiting groove (212) is arranged between the one-way bearing (22) and the adjusting motor (10), and a C-shaped buckle (25) is arranged in the limiting groove (212), and the C-shaped buckle (25) is used to prevent the one-way bearing (22) from being pulled out of the transmission connecting piece (21).

7. The adjusting device of a dual gold mechanism of a circuit breaker according to claim 5, wherein The inner wall of the transmission connecting piece (21) is further provided with a first step and a second step, and the first step and the second step are located between the limiting convex ring (211) and the limiting groove (212). ​ ​ 8. The adjusting device of a double gold mechanism of a circuit breaker according to claim 7, characterized in that, ​ 9. The adjusting device of a double gold mechanism of a circuit breaker according to claim 2 or 3, characterized in that, The bolt is a ball head plug bolt (241), a nut (243) is arranged on the ball head plug bolt (241), and an anti-loosening washer (244) is arranged between the nut (243) and the transmission connecting piece (21).

10. The adjustment device for a dual gold mechanism of a circuit breaker according to claim 1, characterized in that, Further comprising: A ball bearing (23) is sleeved on the motor shaft (11) and located between the one-way bearing (22) and the radial compression structure (24) or between the one-way bearing (22) and the adjusting motor (10).

11. The adjusting device of a dual gold mechanism of a circuit breaker according to claim 1, characterized in that, The adjusting mechanism (30) is provided with: An adjusting mechanism connecting piece (31) connected to the transmission connecting piece (21) by a second bolt (311); and An adjusting rod (33) including a connecting rod (332) and an adjusting head (331), the adjusting head (331) being arranged at the end of the connecting rod (332).

12. The adjustment device of a double gold mechanism of a circuit breaker according to claim 11, characterized in that, The adjusting mechanism (30) is further provided with an adjusting head buffer mechanism (32) including: A buffer block (321) connected to the adjusting mechanism connecting piece (31) at one end and provided with a spring accommodating cavity (322) at the other end; and A buffer spring (323) arranged in the spring accommodating cavity (322), one end of the buffer spring (323) being connected to the buffer block (321) and the other end being connected to the connecting rod (332).

13. The adjusting device of the double gold mechanism of the circuit breaker according to claim 12, wherein: Two buffer limiting grooves (324) are symmetrically arranged on the buffer block (321), the buffer limiting grooves (324) extending along the axis direction of the connecting rod (332); One end of the connecting rod (332) towards the adjusting mechanism connecting piece (31) is provided with a limiting pin (333), the limiting pin (333) being fixedly installed on the connecting rod (332) along the direction perpendicular to the axis of the connecting rod (332), and the two ends of the limiting pin (333) are arranged in or pass through the two buffer limiting grooves (324) respectively.

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