CN211957576U - Electric operating mechanism - Google Patents

Abstract

The utility model relates to an electric operating mechanism, comprising a casing and a motor, a worm, a helical gear, a reduction gear, a tripping gear, a sector gear, a handle, a tripping rod and a circuit board arranged in the casing. The tripping shaft, the sector gear is coaxially connected to the tripping gear, the sector gear is linked with the handle, the tripping shaft is arranged on the movement track of the sector gear, the lower end of the tripping rod is hinged on the inside of the shell, and the middle of the tripping rod forms a sliding section and The free section, the sliding section is set above the free section, the sliding section is set on the motion trajectory of the tripping shaft, the free section gives way to the motion trajectory of the tripping shaft, and the tripping rod is provided with a torsion spring to reduce the movement of the tripping rod. The upper end tends to swing toward the tripping gear, a state switch is arranged on the circuit board, and the tripping gear and the handle are respectively provided with a tripping position sensor and a handle position sensor facing the circuit board. The utility model has simple structure and convenient control.

Description

Electric operating mechanism

technical field

The utility model relates to an electric operating mechanism.

Background technique

The electric operating mechanism is a mechanism that realizes the remote automatic opening and closing of the circuit breaker. It is connected to the circuit breaker, and the motor is controlled by a remote signal to drive the electric operating mechanism to automatically open and close. However, the existing automatic operating mechanism has a single function and cannot meet the use requirements of some occasions. Therefore, an electric operating mechanism with comprehensive functions is required.

SUMMARY OF THE INVENTION

In view of the above deficiencies, the utility model provides an electric operating mechanism with comprehensive functions and convenient operation and an operating method thereof.

In order to achieve the above purpose, the utility model adopts an electric operating mechanism, which includes a casing and a motor, a worm, a helical gear, a reduction gear, a tripping gear, a sector gear, a handle, a tripping rod and a circuit board arranged in the casing, and a worm Threaded on the output shaft of the motor, the worm and the helical gear mesh and link, the helical gear forms a meshing link between the pinion and the reduction gear, the reduction gear meshes and links with the trip gear, the trip gear forms a trip shaft, and the sector gear is coaxial. Connected to the tripping gear, a handle gear is formed on the handle, the sector gear is meshed with the handle gear, the tripping shaft is arranged on the movement track of the sector gear, the lower end of the tripping rod is hinged on the inside of the casing, and the middle of the tripping rod forms a sliding buckle The sliding section is set above the free section, and the sliding section is set on the movement trajectory of the tripping shaft. The upper end of the tripping rod extends to the inside of the tripping hole of the shell, and a torsion spring is arranged on the tripping rod to swing the upper end of the tripping rod toward the tripping gear. The motor is electrically connected, and the tripping gear and the handle are respectively provided with a tripping position sensor and a handle position sensor facing the circuit board.

The utility model is further configured that the tripping shaft includes a driving part connected to the tripping gear and the same height as the sector gear and a tripping part at the top; When the tripping shaft is pushed to move, the tripping part is cylindrical, which can contact with the sliding section of the tripping rod and push the tripping rod to move outward.

The utility model also includes an operation method of an electric operating mechanism. The state changeover switch has three positions: remote, on-site and sliding. The control methods of the three positions are as follows:

(1) The state switch is switched to the remote position, and the motor control trip axis is at the initial position inside the free section,

Manual opening and closing: the handle can be opened and closed freely. When the sector gear rotates with the handle, it will not push the tripping shaft to move, and the tripping gear will not move;

Electric tripping: by remotely controlling the rotation of the motor, the tripping gear is pushed to rotate, the tripping axis moves the tripping rod, and the sliding section of the tripping rod is touched to move the tripping rod outwards to push the circuit breaker to break. Control the tripping axis to return to the initial position;

Electric closing: control the motor to push the trip gear to rotate in reverse, the trip shaft squeezes the sector gear to rotate, the sector gear pushes the handle to close, and the motor controls the trip shaft to return to the initial position after closing.

(2) The state switch is switched to the in-place position, and the motor control trip axis is located at the initial position inside the free section and remains unchanged.

(3) The state switch is switched to the sliding position, the motor controls the tripping shaft to move the tripping rod, the tripping shaft contacts the sliding section and pushes the tripping rod to move outward and keep it. At this time, the operating mechanism of the circuit breaker cannot close.

The beneficial effect of the utility model is that the electric operating mechanism adopts the cooperation of the tripping shaft and the sector gear to realize the clutch of manual opening and closing and electric opening and closing; Switch the position of the motor-controlled tripping shaft to realize the control of the three states of remote, local and sliding, which is convenient and reliable.

Description of drawings

1 is an exploded schematic diagram of a specific embodiment of the present invention.

Figure 2 is an exploded schematic diagram of a specific embodiment of the present invention.

FIG. 3 is a schematic diagram of a specific embodiment of the present invention after the casing is removed.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings.

As shown in Figures 1-3, the specific embodiment of the present invention is an electric operating mechanism, comprising a casing 10 and a motor 1, a worm 2, a helical gear 3, a reduction gear 4, a tripping gear arranged in the casing 10 5. Sector gear 6, handle 7, trip rod 8 and circuit board 9, worm 2 is inserted on the output shaft of motor 1, worm 2 is meshed with helical gear 3, and pinion and reduction gear 4 are formed on helical gear 3 Meshing linkage, the reduction gear 4 meshes with the tripping gear 5, the tripping gear 5 forms a tripping shaft 51, the sector gear 6 is coaxially connected to the tripping gear 5, and the handle 7 forms a section of handle gear 71, the sector gear 6 Meshing and linkage with the handle gear 71, the tripping shaft 51 is arranged on the movement track of the sector gear 6, the lower end of the tripping rod 8 is hinged on the inside of the housing 10, and the middle of the tripping rod 8 forms an arc-shaped sliding section 81 and a free section 82, The sliding section 81 is arranged above the free section 82, and the sliding section 81 is arranged on the movement trajectory of the tripping shaft 51. The free section 82 gives way to the movement trajectory of the tripping shaft 51. The tripping hole 11 corresponding to the mechanism, the upper end of the tripping rod 8 extends to the inside of the tripping hole 11 of the casing, the tripping rod 8 is provided with a torsion spring 83 to swing the upper end of the tripping rod 8 toward the tripping gear 5, and the circuit board 9 There is a state switch 91 on it, the circuit board 9 is electrically connected with the motor 1, the tripping gear 5 and the handle 7 are respectively provided with a tripping position sensor 52 and a handle position sensor 72 facing the circuit board 9, the tripping position sensor 52 and The handle position sensor 72 can use magnets, lighted or reflective elements to provide position feedback for the trip gear and handle position. The tripping shaft 51 includes a driving part 511 connected to the tripping gear 5 at the same height as the sector gear 6 and a tripping part 512 at the top. 6. Push the tripping shaft 51 to move, the tripping portion 512 is cylindrical, and can contact the sliding section 81 of the tripping rod 8 to push the tripping rod 8 to move outward. The circuit board 9 is also provided with a two-color light-emitting diode 92, and a light guide column 93 is arranged between the two-color light-emitting diode 92 and the outer surface of the casing 10. The two-color light-emitting diode 92 indicates different states by emitting different colors, and is displayed on the casing 10 through the light guide column 93. on for easy observation.

The utility model also includes an operation method of an electric operating mechanism. The state switch 91 has three positions: remote, on-site, and sliding. The control methods of the three positions are as follows:

(1) The state switch 91 is switched to the remote position, the motor 1 controls the tripping shaft 51 to be at the initial position inside the free section 82,

Manual opening and closing: the handle 7 can be opened and closed freely, the sector gear 6 will not push the tripping shaft 51 to move when it rotates with the handle 7, and the tripping gear 5 will not move;

Electric tripping: by remotely controlling the rotation of the motor 1, the tripping gear 5 is pushed to rotate, the tripping shaft 51 moves toward the tripping rod 8, and the sliding section 81 of the tripping rod 8 is touched to move the tripping rod 8 outward and push the circuit breaker The operating mechanism is disconnected, and after the disconnection, the motor 1 controls the tripping shaft 51 to return to the initial position;

Electric closing: control the motor 1 to push the trip gear 5 to rotate in the opposite direction, the trip shaft 51 squeezes and pushes the sector gear 6 to rotate, the sector gear 6 pushes the handle 7 to close, and the motor 1 controls the trip shaft 51 to return to the initial state after closing. Location.

(2) The state switch 91 is switched to the in-position position, the motor 1 controls the initial position of the tripping shaft 51 inside the free section 82 and remains unchanged. At this time, the handle 7 can be manually controlled to open and close.

(3) The state switch 91 is switched to the sliding position, the motor 1 controls the tripping shaft 51 to move toward the tripping rod 8, the tripping shaft 51 contacts with the sliding section 81 and pushes the tripping rod 8 to move outward and keep it. At this time, the operating mechanism of the circuit breaker will trip immediately after closing and cannot be closed.

The above-mentioned specific embodiments are preferred embodiments of the present invention. Except for the above-mentioned embodiments, other obvious changes of the present invention are also within the protection scope of the present invention.

Claims (2)

1. The utility model provides an electric operating mechanism, includes the shell and sets up motor, worm, helical gear, reduction gear, tripping gear, sector gear, handle, tripping bar and the circuit board in the shell, its characterized in that: the worm is arranged on an output shaft of the motor in a penetrating way, the worm is in meshing linkage with the helical gear, a pinion is formed on the helical gear in meshing linkage with the reduction gear, the reduction gear is in meshing linkage with the tripping gear, a tripping shaft is formed on the tripping gear, the sector gear is coaxially connected to the tripping gear, a section of handle gear is formed on the handle, the sector gear is in meshing linkage with the handle gear, the tripping shaft is arranged on the motion track of the sector gear, the lower end of the tripping rod is hinged to the inner side of the shell, a slide-buckle section and a free section are formed in the middle of the tripping rod, the slide-buckle section is arranged above the free section, the slide-buckle section is arranged on the motion track of the tripping shaft, the free section gives a abdication to the motion track of the tripping shaft, a tripping hole corresponding to the tripping mechanism of the miniature circuit breaker is formed on the shell, the upper end of the tripping rod extends to the inner side of, the circuit board is provided with a state change-over switch, the circuit board is electrically connected with the motor, and the tripping gear and the handle are respectively provided with a tripping position sensor and a handle position sensor which face the circuit board.

2. The electric operating mechanism according to claim 1, wherein: the trip shaft comprises a drive part and a trip part, wherein the drive part is connected to the trip gear and has the same height as the sector gear, the trip part is arranged at the top end of the drive part, the drive part is fan-shaped, the side surface of the drive part is matched with the side surface of the sector gear, the trip shaft can be pushed to move through the sector gear, and the trip part is cylindrical and can be contacted with the slide fastener section of the trip rod to push the trip rod to move outwards.

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