CN111540636A - Panel type isolating switch grounding switch electric operating mechanism - Google Patents

Abstract

The invention relates to the technical field of isolating switches and discloses an electric operating mechanism of a panel type isolating switch grounding switch, which comprises a frame, wherein a motor is arranged on the inner wall of the frame, a pinion shaft is arranged at the output end of the motor, a pinion is sleeved on the pinion shaft, a driving wheel rotating shaft is movably connected to the inner wall of the frame, a large gear and a driving wheel are sleeved on the driving wheel rotating shaft, and the pinion is meshed with the large gear. The invention is arranged on the front surface of the switch cabinet, one electric mechanism can simultaneously operate a plurality of disconnecting switches and grounding switches, and the disconnecting switches and the grounding switches are sequentially driven according to a specified sequence. This electric mechanism can be used for newly making the cubical switchboard, also can be used for the cubical switchboard transformation that has come into operation to need not change original isolator and earthing switch, this electric mechanism overall dimension is close with former high tension switchgear operating device, and it is very convenient to be used for the transformation of cubical switchboard, greatly reduced the transformation cost.

Description

Panel type isolating switch grounding switch electric operating mechanism

technical field

The invention relates to the technical field of isolating switches, in particular to an electric operating mechanism of a panel-type isolating switch grounding switch.

Background technique

With the advancement of smart grid and power distribution automation, there are more and more needs for electric isolation switches and earthing switches. Various switch accessories manufacturers are competing to develop electric isolation switches and electric earthing switches. However, at present, electric isolation switches and electric earthing switches are on the market. Most of them add motors and transmission components to the switches themselves, which are only suitable for new projects, and each switch itself needs to be equipped with a motor mechanism, which is costly.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a panel-type isolating switch grounding switch electric operating mechanism.

In order to achieve the above purpose, the present invention provides the following technical solutions: an electric operating mechanism for a panel-type isolating switch grounding switch, comprising a frame, a motor is installed on the inner wall of the frame, a pinion shaft is installed at the output end of the motor, and the pinion The shaft is sleeved with a pinion, the inner wall of the frame is movably connected with a driving wheel rotating shaft, the driving wheel rotating shaft is sleeved with a large gear and a driving wheel, one end of the driving wheel is provided with an axle pin, and the axle pin is sleeved with a roller, so The pinion gear is meshed with the large gear, the frame is provided with a driving arm rotating shaft, the driving arm rotating shaft is sleeved with a driving arm, and a chute is arranged in the driving arm, and the chute is connected to the driving wheel. The rollers are engaged.

A worm box is installed inside the frame, a worm and a worm wheel are installed inside the worm box, and the worm is connected with the worm gear in a driving manner. A sub-travel switch, a closing-travel switch and a cam are installed on the inner wall.

Preferably, the tail end of the worm is hexagonal.

Preferably, the number of the driving wheels is one, and the number of the driving wheels is consistent with the number of the driving crank arms.

Preferably, the output arm is connected to the grounding switch and the isolation switch.

Preferably, the large gear and the drive wheel and the drive wheel shaft are all keyed connections.

The invention provides an electric operating mechanism of a panel-type isolating switch grounding switch. Has the following beneficial effects:

(1) The present invention is installed on the front of the switch cabinet, and one electric mechanism can operate multiple isolation switches and grounding switches at the same time, and sequentially drive each isolation switch and grounding switch in a prescribed order. This electric mechanism can be used for newly-made switchgear, or for the transformation of switchgear that has been put into use, without replacing the original isolation switch and grounding switch. The transformation of the switch cabinet is very convenient, which greatly reduces the transformation cost.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Figure 2 is a perspective view of the present invention.

In the picture: 1 frame, 2 worm box, 3 worm, 4 interlocking baffle, 5 worm gear, 6 motor, 7 pinion gear, 8 large gear, 9 driving wheel, 10 driving wheel shaft, 11 driving arm shaft, 12 driving Lever arm, 13 cams, 14 split stroke switches, 15 combined stroke switches, 16 chain levers, 17 pinion shafts.

Detailed ways

As shown in Figures 1-2, the present invention provides a technical solution: an electric operating mechanism of a panel-type isolating switch grounding switch, comprising a frame 1, a motor 6 is installed on the inner wall of the frame 1, and a pinion shaft 17 is installed at the output end of the motor 6 , the pinion shaft 17 is sleeved with the pinion 7, the inner wall of the frame 1 is movably connected with the driving wheel shaft 10, the large gear 8 and the driving wheel 9 are connected with the driving wheel shaft 10 by keys, and one end of the driving wheel 9 is provided with a shaft pin, A roller is sleeved on the shaft pin, the pinion 7 is meshed with the large gear 8, the frame 1 is equipped with a driving arm rotating shaft 11, the driving arm rotating shaft 11 is sleeved with a driving arm 12, and the frame 1 is provided with a turning arm chute. , The output crank arm is movably installed inside the crank arm chute, and the output crank arm is connected to the grounding switch and the isolation switch. The number of driving wheels 9 is 1-3, forming a 90-degree angle with each other, and each driving wheel 9 drives one correspondingly. Output crank arm 12, the number of driving wheels 9 is consistent with the number of driving crank arms 12, the driving crank arm 12 is provided with a chute, and the chute is engaged with the roller on the driving wheel.

A worm box 2 is installed inside the frame 1, a worm 3 and a worm wheel 5 are installed inside the worm box 2, the worm 5 is connected with the worm wheel 3 in a drive, and the tail end of the worm 3 is hexagonal. 4 and the interlocking lever 16, the inner wall of the frame 1 is provided with a sub-stroke switch 14, a closing stroke switch 15 and a cam 13.

When in use, when the power is cut off for maintenance, the motor 6 rotates in the forward direction to drive the pinion shaft 17 and the pinion 7 to rotate, the pinion 7 drives the large gear 8 and the driving wheel shaft 10 to rotate, the driving wheel rotates with the rotation of the rotating shaft 10, and the driving wheel rotates together. 9 can be 1-3, forming an angle of 90 degrees with each other, each driving wheel 9 correspondingly drives an output arm 12, when the driving wheel shaft 10 rotates, the first driving arm 12 is clamped into the first output arm 12. In the chute, the output crank arm is driven to rotate. When the driving wheel rotates 90 degrees, the output crank arm rotates by a certain angle, which drives the corresponding isolation switch to open. At this time, the driving crank arm 12 just slides out of the crank arm chute and keeps the output crank arm. Stay still in this position. When the rotating shaft 10 of the driving wheel continues to rotate, the second driving arm 12 is clamped into the chute of the output arm and drives the output arm to rotate by a certain angle. After the driving wheel 9 rotates 90 degrees, the driving arm 12 slides out of the chute of the arm. , and keep the crutch arm still at this position, and similarly complete the third output crutch arm output in turn. The three output crank arms are connected with the grounding switch and the isolating switch according to the specified requirements to realize the opening of the isolating switch and the closing of the grounding switch.

During the power transmission operation, when the motor 6 rotates in the reverse direction, the third driving arm 12 is clamped into the chute of the third output arm, and drives the output arm to rotate. When the driving wheel rotates 90 degrees, it drives the corresponding grounding switch to open. , drive the crutch arm 12 just slide out of the crutch arm chute, and keep the crutch arm still at this position. Then every 90 degrees of rotation, the second and first output crank arms are rotated by a certain angle in turn to realize the closing of the grounding switch and the opening of the isolating switch in sequence. The number of output crank arms can be adjusted according to actual needs. If the high-voltage switch cabinet has only one grounding switch or one isolation switch, only one output crank arm and one drive wheel 9 are required.

The travel switch is composed of a sub-travel switch 14 and a closing switch 15, which can be composed of multiple sets of contacts in parallel. The sub-travel switch 14 is used to indicate the power off from the motor when the isolation switch and the grounding switch (power failure maintenance) are in place, and the closing switch is used. 15 is used to indicate the power off of the motor when the grounding switch and the closing switch (power transmission operation) are in place. On, the motor 6 stops.

Worm box 2, worm 3, and worm wheel 5 form a manual operating mechanism. The tail end of worm 3 is hexagonal, which can be socketed with an operating handle for the action of the manual operating mechanism.

The interlocking baffle 4 and the interlocking lever 16 are used for interlocking with the circuit breaker. The interlocking lever 16 is sleeved on the shaft pin, and the shaft pin is fixed on the frame 1. The interlocking baffle 4 is also fixed to the frame 1 through the shaft pin. On the frame 1, the interlocking baffle 4 can slide up and down. When the circuit breaker is closed, the front end of the interlocking lever 16 is pulled down, and the rear end of the interlocking lever 16 is upward to block the interlocking baffle 4, so the baffle cannot go down. Sliding, the handle cannot be inserted, it cannot be operated manually. After the circuit breaker is opened, the interlocking baffle plate 4 can slide down, press down the front end of the interlock lever 16, and the tail end of the interlock lever 16 is upward, and pull the circuit breaker tripping plate to open the circuit breaker. A handle can be inserted, and the mechanism can be manually operated through a worm gear.

To sum up, the present invention is installed on the front of the switch cabinet, and one electric mechanism can operate multiple isolation switches and grounding switches at the same time, and sequentially drive the isolation switches and grounding switches in a prescribed order. This electric mechanism can be used for newly-made switchgear, or for the transformation of switchgear that has been put into use, without replacing the original isolation switch and grounding switch. The transformation of the switch cabinet is very convenient, which greatly reduces the transformation cost.

Claims (5)

1. A panel-type isolating switch grounding switch electric operating mechanism, comprising a frame (1), characterized in that: a motor (6) is installed on the inner wall of the frame (1), and a pinion gear is installed at the output end of the motor (6) A shaft (17), a pinion gear (7) is sleeved on the pinion shaft (17), a drive wheel rotating shaft (10) is movably connected to the inner wall of the frame (1), and the drive wheel rotating shaft (10) is sleeved A large gear (8) and a driving wheel (9) are provided, one end of the driving wheel (9) is provided with a shaft pin, and a roller is sleeved on the shaft pin, the small gear (7) is meshed with the large gear (8), and the frame (1) A drive crank arm rotating shaft (11) is installed on the drive crank arm rotating shaft (11), a drive crank arm (12) is sleeved on the drive crank arm rotating shaft (11), and a chute is provided in the drive crank arm (12). Engage with the roller on the drive wheel; A worm case (2) is installed inside the frame (1), a worm (3) and a worm wheel (5) are installed inside the worm case (2), and the worm (5) is drivingly connected with the worm wheel (3), so The outer wall of the frame (1) is movably installed with an interlocking baffle plate (4) and an interlocking lever (16) through a shaft pin, and the inner wall of the frame (1) is installed with a travel switch (14), a travel switch (15) and Cam (13). 2 . The electric operating mechanism of the panel-type isolating switch grounding switch according to claim 1 , wherein the tail end of the worm ( 3 ) is hexagonal. 3 . 3. The electric operating mechanism of the panel-type isolating switch grounding switch according to claim 1, characterized in that: the number of the driving wheels (9) is 1-3, and the number of the driving wheels (9) is the same as that of the driving turns The number of arms (12) is the same. 4 . The electric operating mechanism for the grounding switch of a panel-type isolating switch according to claim 1 , wherein the output arm is connected to the grounding switch and the isolating switch. 5 . 5. The electric operating mechanism of the panel-type isolating switch grounding switch according to claim 1, wherein the large gear (8), the driving wheel (9) and the driving wheel rotating shaft (10) are all keyed connections.

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