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CN-224232536-U - Electric operating mechanism of isolating switch

CN224232536UCN 224232536 UCN224232536 UCN 224232536UCN-224232536-U

Abstract

The utility model discloses an electric operating mechanism of an isolating switch, which comprises a mounting frame, wherein one side of an inner cavity of the mounting frame is rotationally connected with a main shaft through a bearing, the other side of the inner cavity of the mounting frame is fixedly provided with a double-shaft motor, the end part of a group of output shafts of the double-shaft motor is fixedly provided with a motor shaft, the motor shaft is driven to rotate through the double-shaft motor, then the motor shaft drives the main shaft through a meshing cylinder, and then the operating shaft is driven through a worm and a worm wheel, therefore, the isolating switch is electrically opened and closed, then the adjusting component is operated through the shifting fork rod and the operating rod, disconnection of the motor shaft and the main shaft is realized, energy storage and energy release of the spring are matched, the operating shaft is driven manually and indirectly, a driving mode is changed, small moment is adopted, opening of the isolating switch is automatically realized, manual operation can be adopted when electric driving fails, time and labor are saved, and the timeliness of disconnection of the isolating switch is improved.

Inventors

  • LIU WANJIE
  • HU CHENGTAO
  • LIU JIACHUN
  • Chan Wenwu
  • ZHANG CHUNJUN
  • Nie Kuncai

Assignees

  • 双杰电气湖北有限公司

Dates

Publication Date
20260512
Application Date
20250606

Claims (8)

  1. 1. An electric operating mechanism of a disconnecting switch, comprising: A mounting frame (1); One side of the inner cavity of the mounting frame (1) is rotationally connected with a main shaft (2) through a bearing, the other side of the inner cavity of the mounting frame (1) is fixedly provided with a double-shaft motor (3), a group of output shaft ends of the double-shaft motor (3) are fixedly provided with motor shafts (4), one ends, opposite to the motor shafts (4) and the main shaft (2), of the motor shafts are all meshed with a meshed cylinder (5), an operating shaft (6) for driving the isolating switch to be opened or closed is rotationally connected on the mounting frame (1) through the bearing, a worm wheel (7) is fixedly arranged on the operating shaft (6), and one end of the main shaft (2) penetrates through the mounting frame (1) and is fixedly provided with a worm (8) meshed with the worm wheel (7); the novel steering device is characterized in that an adjusting component (9) is arranged on the outer sides of the main shaft (2) and the motor shaft (4), a shifting fork rod (10) is hinged to the outer side of the mounting frame (1), and the shifting fork rod (10) is manually operated and controlled through an operating rod (17) on the adjusting component (9).
  2. 2. The electric operating mechanism of the disconnecting switch of claim 1, wherein a meshing groove (11) is formed in the outer side of the opposite ends of the main shaft (2) and the motor shaft (4), and a limiting strip (12) arranged in the meshing groove (11) in a sliding manner is fixed in the inner cavity of the meshing cylinder (5).
  3. 3. The electric operating mechanism of the disconnecting switch of claim 1, wherein the adjusting assembly (9) comprises a sliding disc (91) sleeved on the outer side of the motor shaft (4), buffer springs (92) and extrusion springs (93) sleeved on the outer side of the motor shaft (4) are respectively fixed on two sides of the sliding disc (91), one end, far away from the sliding disc (91), of each extrusion spring (93) is fixedly connected with the double-shaft motor (3), and each buffer spring (92) is located between the corresponding engagement cylinder (5) and the corresponding sliding disc (91).
  4. 4. The isolating switch electric operating mechanism of claim 1, wherein the inner cavity of the mounting frame (1) is further provided with a back driving assembly capable of automatically resetting the main shaft (2), the back driving assembly comprises a spring box (13) fixedly sleeved on the outer side of the main shaft (2), the spring box (13) is fixed on the inner wall of the mounting frame (1), a spring (14) is fixed on the inner wall of the spring box (13), and the movable end of the spring (14) is fixedly connected with the outer wall of the main shaft (2).
  5. 5. The disconnecting switch electric operating mechanism of claim 1, wherein the operating rod (17) is fixed on one side of the sliding plate (91), one end of the operating rod (17) extends to the outer side of the mounting frame (1), and one end of the shifting fork rod (10) is sleeved on the outer side of the operating rod (17).
  6. 6. The isolating switch electric operating mechanism of claim 3, wherein the outer side of the engagement cylinder (5) is sleeved with an outer sleeve (15), and one end of the buffer spring (92) far away from the sliding disc (91) is fixedly connected with one end of the outer sleeve (15).
  7. 7. The electric operating mechanism of the disconnecting switch of claim 1 is characterized in that the other group of output shafts of the double-shaft motor (3) penetrate through the outer side of the mounting frame (1), a limiting groove (16) is formed in the mounting frame (1), and the operating rod (17) is arranged in the limiting groove (16) in a sliding mode.
  8. 8. The electric operating mechanism of the disconnecting switch of claim 1, wherein the length of the engagement groove (11) on the main shaft (2) is smaller than the length of the engagement cylinder (5), and the length of the engagement groove (11) on the motor shaft (4) is larger than the length of the engagement cylinder (5).

Description

Electric operating mechanism of isolating switch Technical Field The utility model relates to the technical field of electrical equipment, in particular to an electric operating mechanism of an isolating switch. Background The isolating switch is generally referred to as a high-voltage isolating switch, and has the main function of ensuring the safety of high-voltage electric appliances and devices during maintenance work and playing a role of isolating voltage. The isolating switch has the function of disconnecting the circuit without load current, so that the overhaul equipment has an obvious disconnection point with the power supply. When the high-voltage electric appliance is powered off, the isolating switch is preferably disconnected before the cabinet door is opened, so that the isolating switch needs to be disconnected in an electric mode, and meanwhile, the isolating switch needs to be disconnected in a manual mode. There is a need for an electric mechanism that can be operated both electrically and manually to open the disconnector. In the prior art, publication number CN222801621U discloses an electric control mechanism of an isolating switch, which comprises a mounting bracket, a transmission main shaft, a double-throw clutch mechanism, an electric mechanism and a manual mechanism, wherein the double-throw clutch mechanism comprises a driving shaft and a driven shaft, the double-throw clutch mechanism, the electric mechanism and the manual mechanism are connected or fixed with the mounting bracket, the transmission main shaft is positioned in the double-throw clutch mechanism, the driven shaft of the double-throw clutch mechanism is connected with the transmission main shaft, the driving shaft of the double-throw clutch mechanism is connected with the electric mechanism, and the manual mechanism is connected with the driven shaft. When in manual driving, the driving shaft is separated from the driven shaft, and the manual mechanism drives the driven shaft to rotate so as to drive the transmission main shaft to rotate. The electric control isolating switch can be used for electrically controlling the isolating switch to be turned on or turned off, and the isolating switch can be manually controlled to be turned on or turned off, so that the practicability and the safety of the isolating switch are improved, and the high-voltage electric appliance is safer and more reliable in operation or overhaul. When the electric driving action is adopted and the power supply of the driving component fails, the operation of the executing component can not be performed, when the manual driving is adopted, a large operation torque is needed, the manual operation is not only laborious but also low in efficiency, and when the isolating switch needs to be quickly disconnected in an emergency, the manual operation breaking speed may delay the operation opportunity. Disclosure of utility model The utility model aims to provide an electric operating mechanism of an isolating switch, which drives a motor shaft to rotate through a double-shaft motor, then the motor shaft drives a main shaft through an engagement cylinder, and then a worm gear and worm transmission structure and a clockwork spring energy storage design are utilized, so that the moment required by manual operation is reduced, the burden of operators is lightened, and the portability of the manual operation is improved, so that the problems in the background technology are solved. In order to achieve the purpose, the utility model provides the following technical scheme that the isolating switch electric operating mechanism comprises: A mounting frame; One side of the inner cavity of the mounting frame is rotationally connected with a main shaft through a bearing, the other side of the inner cavity of the mounting frame is fixedly provided with a double-shaft motor, a motor shaft is fixed at one end of a group of output shafts of the double-shaft motor, opposite ends of the motor shaft and the main shaft are respectively engaged with an engagement cylinder, an operation shaft for driving the isolating switch to be opened or closed is rotationally connected on the mounting frame through the bearing, a worm wheel is fixed on the operation shaft, and one end of the main shaft penetrates through the mounting frame and is fixedly provided with a worm meshed with the worm wheel; The outer sides of the main shaft and the motor shaft are provided with adjusting components, the outer sides of the mounting frames are hinged with shifting fork rods, and the shifting fork rods are used for manually controlling the adjusting components through operating rods. Preferably, a snap groove is formed in the outer side of the opposite end of the main shaft and the motor shaft, and a limiting strip arranged in the snap groove in a sliding manner is fixed in the inner cavity of the snap cylinder. Preferably, the adjusting component comprises a sliding disc sleeved on the outer