CN209297951U - Rotary device and dual power conversion mechanism using it - Google Patents

Abstract

A rotating device and a dual power conversion mechanism using it belong to the field of power conversion, including a motor, a left-right symmetrical rotating plate, a switch handle fixedly connected to the rotating plate, a circuit breaker located in the jaw of the switch handle, and the left-right symmetrical The rotating plate is fixed on the upper part of the first rotating disk, and the motor is connected with the second rotating disk. When the motor is started, it drives the second rotating disk to rotate, and the second rotating disk then drives the first rotating disk to rotate through the internal rotation control mechanism, and the rotating plate on the first rotating disk rotates accordingly. When the switch handle on the rotating plate moves to the corresponding position When the circuit breaker is connected, the opening and closing of the circuit breaker is completed. This structure is used in the operating mechanism of the dual power conversion mechanism, and when manual operation is realized, the motor does not follow the manual operation. And when the motor works, it can drive the whole switching mechanism to move.

Description

Rotary device and dual power conversion mechanism using it

technical field

The utility model relates to the field of power conversion, in particular to a rotating device and a dual power conversion mechanism using the same.

Background technique

The dual power conversion mechanism is used to automatically switch the load circuit from one power source to another (standby) power source to ensure continuous and reliable operation of important loads. CB-level dual power supply consists of two derived circuit breakers (mostly molded case circuit breakers) and a set of operating mechanism. The operation of the operating mechanism realizes the closing and opening of the two circuit breakers and completes the conversion of the load circuit. There are two modes of operation for this product, one is manual operation and the other is motor operation. The former is completed by manual operation handle, and the latter is completed by the rotation of the motor itself. At present, when the products on the market are manually operated, the rotating action of the rotating device needs to drive the motor to rotate. Since the passive rotation of the power output shaft of the motor has a large torque, the manual operation is laborious and may even damage the motor.

Utility model content

In view of the above-mentioned problems, the purpose of this utility model is to provide an operating mechanism. When the mechanism is manually operated, the motor does not rotate with the entire rotating device, but when the motor rotates, the entire mechanism will rotate with the rotation of the motor. , manual operation and motor operation share a set of internal control structure, simple structure, convenient operation, less space occupied.

The purpose of this utility model is specifically achieved by the following scheme:

A rotating device, comprising a first rotating disk and a second rotating disk, the first rotating disk is provided with a first annular protrusion, the second rotating disk is provided with a second annular protrusion, and the first annular protrusion It is movably connected with the second annular protrusion, and a connecting part is arranged in the cavity formed by the two; sliders are arranged symmetrically on both sides of the connecting part, and the connecting part and the slider are respectively movably connected on the first rotating disk The slider is connected to the first rotation through the positioning shaft; the inner wall of the second annular protrusion has a groove, and the two ends of the slider are respectively in contact with the groove and the connecting part. The positive and negative motors are connected to the second rotating disk. When the motor starts, it drives the second rotating disk to rotate. The second rotating disk drives the first rotating disk to rotate through the internal rotation control mechanism. The rotating plate follows the rotation. When the switch handle on the rotating plate When moving to the circuit breaker at the corresponding position, the opening and closing of the circuit breaker is completed. The motor can be reversed, so as to realize the automatic switching of dual power sources.

Further, the first rotating disk is provided with a through hole, and the connecting part is connected to the operating shaft on the upper part of the first rotating disk through the through hole.

The slider has a first boss and a third boss, wherein the first boss is in contact with the connecting portion, the third boss is located in the groove of the second annular protrusion, and the third boss can slide in the groove, but Both ends of the slider are always in contact with the connecting portion and the groove. Since the connecting part receives the same force from the left and right sliders, when the motor starts to drive the second rotating disk to rotate, it can drive the first rotating disk to rotate in the same direction through the connecting part, thereby completing the closing and opening operation of the circuit breaker .

Further, the inside of the first annular protrusion also has a dial shaft and a working groove, one end of the dial shaft is fixedly arranged on the first rotating disk, the other end is located inside the working groove, and can slide left and right, and the third boss can be moved in the groove. Sliding, the maximum distance that it can slide is the same as the maximum distance that the driving shaft slides in the working groove.

The connecting portion has a protruding structure in the middle of the left and right sliders, and the second boss is in contact with the protruding structure. Further, the protruding structure is a sector ring structure, and the outer arc of the sector ring structure is located at an end far away from the connection part on the first rotating disk.

The working tank is located on the fan ring structure, and the operating shaft controls the rotation of the first rotary disk through the combination of the dial shaft and the working tank, that is, when the manual operation of the operating shaft rotates clockwise, the operating shaft rotates, and the working shaft on the fan ring structure The groove follows the rotation, thereby breaking the force balance of the left and right sliders. The third boss of the right slider will break away from the second annular raised groove due to artificial force, so that the working groove can rotate clockwise. When the working groove After being in contact with the dial shaft on the first rotating disc, it will drive the dial shaft to rotate together, thereby driving the first rotating disc to rotate, and then completing the closing and opening operation of the circuit breaker.

Due to the low strength of the manual operation, the second rotating disk only has slight friction with the slider, which is not enough to overcome the resistance of the motor itself, so the motor and the second rotating disk will not rotate.

Furthermore, the slider has a second boss and a fourth boss, the fourth boss fits with the inner wall of the second annular boss, the second boss contacts the fan ring structure, and the left and right sliders are connected by elastic components .

Two symmetrical pins are arranged on the left and right second bosses, and the elastic component connects the left and right sliders through the pins.

Further, the elastic component is a spring.

The first boss, the second boss, the third boss, and the third boss are arc-shaped bosses.

The grooves are at least a pair of symmetry.

Further, the rotating plate is connected with the first rotating disk of the rotating device through a push nail.

Another aspect of the utility model provides a dual power conversion mechanism, including an intelligent controller, a circuit breaker and any one of the above-mentioned rotating devices. The controller completes the closing and opening operations of the circuit breaker by controlling the rotation of the rotating device. Specifically, after the normal power supply has overvoltage, undervoltage, etc., the controller will control the rotating device to switch the circuit breaker to the backup power supply. When the normal power supply returns to normal, the controller will send a signal to the circuit breaker again. A conversion is performed to switch to normal power.

The beneficial effect of the utility model: by sharing a set of internal rotation control mechanism, both manual operation and motor operation can be realized, the structure is simple, the operation is convenient, the space occupied is small, the manual operation is labor-saving and the motor will not be damaged during operation.

Description of drawings

Figure 1 is a schematic top view of the CB-level dual power supply structure;

Figure 2 is a schematic diagram of the assembly of the rotating device and the motor;

Fig. 3 is a structural schematic diagram of a rotating device;

Fig. 4 is a sectional view of the rotating device in a free state;

Fig. 5 is a cross-sectional view of the rotating device during manual operation;

Fig. 6 is a sectional view of the rotating device when the motor is in operation.

Note: 1 rotating structure; 2 rotating plate; 3 switch handle; 4 operating shaft; 5 first rotating disc; 51 first annular protrusion; 6 second rotating disc; 61 second annular protrusion; Motor; 9 dial nails; 10 slide block; 11 positioning shaft; 12 pins; 13 springs; 14 working slots; 15 dial shafts.

Detailed ways

In order to facilitate those of ordinary skill in the art to understand and implement the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The overall structure of the dual power conversion mechanism, as shown in Figure 1, the CB-level dual power structure mainly includes a rotating device 1, two rotating plates 2 of the same size, a switch handle 3 with a gripping port, and a gripping port located at the switching handle 3. circuit breaker. Two left-right symmetrical rotating plates 2 are arranged axially symmetrically on the rotating device 1 , and a switch handle 3 is mounted on one end of the rotating plate 2 . Its mode of action is that the rotating device 1 rotates, thereby driving the rotating plate 2 to rotate, and the rotating plate 2 drives the rotating movement of the switch handle 3, thereby completing the closing and opening operation of the circuit breaker.

And the main part of the utility model is made up of rotating device 1 and motor 8 two parts, as shown in Figure 2, motor 8 is connected with rotating device 1 through power output shaft 7.

As shown in Figure 3, the rotating device 1 includes a first rotating disk 5 and a second rotating disk 6, the first rotating disk 5 is provided with a first annular protrusion 51, and the second rotating disk 6 is provided with a second annular protrusion 61 , the first annular protrusion 51 and the second annular protrusion 61 are movably connected, and a connecting part is arranged in the chamber formed by the two; and sliders 10 are arranged symmetrically on both sides of the connecting part, and the connecting part and the slider 10 are respectively movably connected. On the first rotating disk 5 ; the slider 10 is connected to the first rotating disk 5 through a positioning shaft 11 .

Wherein, the inner wall of the second annular protrusion 61 has a pair of symmetrical grooves, and the two ends of the slider 10 are respectively connected with the grooves and the connecting portion. The first rotating disk 5 is provided with a through hole, and the connection part is connected with the operating shaft 4 on the upper part of the first rotating disk 5 through the through hole.

The slider 10 has a first boss and a third boss, wherein the first boss is in contact with the connecting portion, and the third boss is located in the groove of the second annular protrusion 61 . The slide block 10 also has a second boss and a fourth boss, the second boss is located on the same side of the first boss; fit.

The connection part has a fan ring structure in the middle of the left and right sliders 10, and the outer arc of the fan ring structure is located away from the connection part on the first rotating disk 5. The second boss position of the slider 10 is similar to the fan ring type structural contact.

Pins 12 are respectively provided on the second boss of the slider 10 , and the left and right pins 12 are connected by a spring 13 .

A closed working groove 14 is provided on the sector ring structure, and two symmetrical positioning shafts 11 and dial shafts 15 are fixed inside the first annular protrusion 51 . The dial shaft 15 is located in the middle of the two positioning shafts 11 . The dial shaft 15 is located in the working groove 14 and can slide left and right; the maximum distance that the dial shaft 15 slides in the working groove 14 is the same as the maximum distance that the third boss of the slider 10 can slide in the groove.

Any one of the above-mentioned first boss, second boss, third boss and fourth boss is an arc-shaped boss.

On the other hand, the utility model provides a dual power conversion mechanism, which includes a motor 8, a symmetrical rotating plate 2, a switch handle 3 fixedly connected to the rotating plate 2, and a circuit breaker located in the jaw of the switch handle 3. Any of the rotating devices described above. The rotating plate 2 driven left and right symmetrically is fixed on the upper part of the first rotating disk 5 , and the motor 8 is connected with the second rotating disk 6 . The rotating plate 2 is connected with the first rotating disk 5 through a dial nail 9 .

After the motor 8 is connected to the second rotating disk 6, when the motor 8 starts, it drives the second rotating disk 6 to rotate, and the second rotating disk 6 then drives the first rotating disk 5 to rotate, and the rotating plate 2 rotates accordingly. When the switch handle 3 moves to the circuit breaker at the corresponding position, the opening and closing of the circuit breaker is completed. The motor 8 can be reversed, thereby realizing the automatic switching of dual power supplies.

As shown in FIG. 4 , the dial shaft 15 on the first rotating disk 5 is positioned in the working groove 14 on the sector ring structure. After the second rotating disk 6 and the first rotating disk 5 are combined and assembled, the two sliders 10 are distributed symmetrically. The fourth boss is engaged with the inner wall of the second annular protrusion 61 , the first boss is in contact with the connecting portion, and the third boss is located in the groove on the second annular protrusion 61 . The left and right sliders 10 are connected by a spring 13 .

As shown in Figure 5, when the operating shaft 4 rotates clockwise under human operation, the operating shaft 4 pushes the right side slider 10 to rotate, and the third boss on the right side slider 10 breaks away from the recess of the second annular protrusion 61. groove. Under the action of the spring 13 on the left side slider 10 , the fourth boss on the left lower part fits with the inner arc of the second rotating disk 6 . Continue to rotate the operating shaft 4, the working groove 14 on the fan ring structure collides with the dial shaft 15 on the first rotating disk 5, and then pushes the first rotating disk 5 to rotate, and the dial nail 9 on the first rotating disk 5 is driven The rotating plate 2 of the dual power supply product realizes the opening and closing operation of the circuit breaker.

Specifically, in this rotating operation process, due to the small force of manual operation, the second rotating disk 6 only has a slight friction with the slider 10, which is not enough to overcome the resistance of the motor 8 itself, so the motor 8 and the second rotating disk 6 will not rotate.

As shown in FIG. 6 , when the motor is unlocked and starts to supply power, when the power output shaft 7 of the motor rotates clockwise, the second rotating disk 6 will rotate clockwise along with the motor 8 . The arc-shaped third boss on the right side slider 10 is embedded in the groove of the second annular protrusion 61 , and the position of the working groove 14 is restored to the neutral position due to the bilaterally symmetrical slider 10 interacting with the working groove 14 . The dial 15 is positioned at the middle part of the working groove 14, and the positions of the left and right sliders 10 and the connecting portion and the working groove 14 are relatively fixed. At this moment, the left and right sliders 10 have no additional rotational moment, so the left and right arc-shaped third bosses cannot The unlocking is disengaged from the groove on the second annular protrusion 61 , and the position is fixed relative to the second rotating disk 6 . At this time, the second rotating disk 6 continues to rotate, and the first rotating disk 5 passes through the slider 10 and rotates clockwise together, so that the dial nail 9 on the first rotating disk 5 drives the rotating plate 2 of the dual power supply product to realize the circuit breaker opening and closing operation.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these Improvement and retouching should also be regarded as the protection scope of the present utility model.

Claims (12)

1. a kind of rotating device, including the first rotating disk (5), the second rotating disk (6), which is characterized in that first rotating disk (5) first annular raised (51) are provided with, second rotating disk (6) is provided with the second annular protrusion (61), first ring A chamber is formed between shape protrusion (51) and the second annular protrusion (61), interconnecting piece is provided in chamber, and interconnecting piece setting exists In first rotating disk (5)；

The interconnecting piece two sides are provided with sliding block (10), and sliding block (10) is arranged on the first rotating disk (5) by locating shaft (11)；

The inner wall of second annular protrusion (61) has groove, and the sliding block (10) has first boss and third boss, Middle first boss is contacted with the interconnecting piece, third boss is located in the groove of the second annular protrusion (61).

2. rotating device according to claim 1, which is characterized in that first rotating disk (5) is provided with through-hole, the company Socket part is connect by through-hole with the operating shaft (4) on the first rotating disk (5) top.

3. rotating device according to claim 2, which is characterized in that the interconnecting piece is in two sliding block (10) middle parts in left and right Position tool projective structure.

4. rotating device according to claim 3, which is characterized in that the projective structure is fan ring type structure.

5. rotating device according to claim 3, which is characterized in that the sliding block (10) is convex with second boss and the 4th Platform, second boss are located at the ipsilateral top of first boss, contact with projective structure；It is ipsilateral that 4th boss is located at third boss, with Second annular protrusion (61) inner wall suits.

6. rotating device according to claim 5, which is characterized in that be provided with pin in the second boss of the sliding block (10) (12), the pin (12) on two sliding blocks (10) in left and right is connected by spring (13).

7. rotating device according to claim 6, which is characterized in that the projective structure is provided with work nest (14), described It is fixedly installed pulling axis (15) inside first annular protrusion (51), the pulling axis (15), which is located in work nest (14), can control cunning It is dynamic.

8. rotating device according to claim 7, which is characterized in that the pulling axis (15) is slided most in work nest (14) The slidable maximum distance in groove is identical with the third boss of sliding block (10) for big distance.

9. according to any rotating device of claim 5-8, which is characterized in that the first boss, second boss, third are convex Platform, the 4th boss are arc cam.

10. -8 any rotating device according to claim 1, which is characterized in that the groove is at least symmetrical a pair of.

11. a kind of dual power supply switching mechanism, including motor (8), symmetrical swivel plate (2), are fixedly connected on swivel plate (2) On switch knob (3), be located at switch knob (3) clamping opening in breaker, which is characterized in that further include claim 1-10 Any rotating device, the symmetrical swivel plate (2) are fixed on the first rotating disk (5) top, motor (8) and second Rotating disk (6) connection.

12. dual power supply switching mechanism according to claim 11, which is characterized in that the swivel plate (2) and the first rotating disk (5) by dialling nail (9) connection.