CN219458479U - Device for automatically pushing and pulling drawer of power distribution cabinet - Google Patents

Abstract

The utility model discloses a device for automatically pushing and pulling drawers of a power distribution cabinet, which solves the problems of large operation amount, low working efficiency and misoperation risk caused by manual drawer pushing and pulling in a power distribution room of the existing coal preparation plant; the device includes support, step motor, the shaft coupling, the lead screw, controller and nut seat, the support sets up on the switch board, the shaft coupling is installed on the support, lead screw and step motor set up respectively at the both ends of coupling, step motor's output links to each other with the shaft coupling, step motor's driver links to each other with the controller electrical property, the controller passes through step motor's driver control step motor's direction of rotation and rotation distance, the inboard bottom of drawer is provided with the nut seat, be provided with the screw with lead screw looks adaptation on the nut seat, the axle center of screw and the axle center of lead screw are in same horizontal plane, the lead screw passes through hole and the nut seat connection on the switch board in proper order.

Description

Device for automatically pushing and pulling drawer of power distribution cabinet

Technical Field

The utility model relates to a power distribution cabinet device, in particular to a device for automatically pushing and pulling drawers of a power distribution cabinet, which is suitable for areas with large areas and multiple distribution chambers in a coal preparation plant.

Background

Along with the gradual improvement of the coal production scale, the safety coefficient and the efficiency of power cut and transmission of a power distribution room are improved, the labor intensity of workers is reduced, the cost is reduced, enterprises can occupy favorable positions in strong market competition, and the production automation control and high-tech management technology are further realized.

The existing coal preparation factory electricity distribution room adopts the manual work to pull out the drawer after the power failure, and the manual work pushes in the drawer before the power failure. However, for coal preparation plants with large plant areas and scattered distribution rooms, the problems of large manual operation amount and lower working efficiency exist, and the risk of misoperation is increased.

Disclosure of Invention

The utility model provides a device for automatically pushing and pulling drawers of a power distribution cabinet, which aims to solve the problems of large operation amount, low working efficiency and misoperation risk caused by manual drawer pushing and pulling in a power distribution room of the existing coal preparation plant.

The technical scheme provided by the utility model is as follows:

the utility model provides a device for automatic push-and-pull drawer of switch board, the drawer sets up in the switch board, its special character lies in:

comprises a bracket, a stepping motor, a coupler, a screw rod, a controller and a nut seat;

the support is arranged on the power distribution cabinet, the shaft coupling is arranged on the support, the screw rod and the stepping motor are respectively arranged at two ends of the shaft coupling, the output end of the stepping motor is connected with the shaft coupling, a driver of the stepping motor is electrically connected with the controller, and the controller controls the rotation direction and the rotation distance of the stepping motor through the driver of the stepping motor;

the double-shaft stepping motor is provided with a manual knob at one end far away from the coupler, and the manual knob is connected with a rotating shaft of the side double-shaft stepping motor;

the power distribution cabinet is characterized in that a nut seat is arranged at the bottom of the inner side of the drawer, a screw hole matched with the screw rod is formed in the nut seat, the axis of the screw hole and the axis of the screw rod are in the same horizontal plane, a through hole is formed in the position, corresponding to the screw hole, of the power distribution cabinet, and the screw rod sequentially penetrates through the through hole and the nut seat.

Further, a guide rail is arranged at the contact position of the power distribution cabinet and the bottom of the drawer, and the drawer is arranged on the guide rail in a sliding manner.

Further, the stepper motor is a biaxial stepper motor.

Further, the controller is a PLC controller or a singlechip controller.

Further, the singlechip controller is an STM32 singlechip controller or a 51 singlechip controller.

Further, sliding blocks are arranged on two sides of the bottom of the drawer, and the drawer is connected with the guide rail through the sliding blocks.

Further, the support is connected with the power distribution cabinet through a screw or is adhered to the power distribution cabinet.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the device for automatically pushing and pulling the drawer of the power distribution cabinet, the PLC is adopted to control the rotation direction and the rotation distance of the double-shaft stepping motor through the driver of the double-shaft stepping motor, the PLC is used for remote control, on-site management staff can realize remote automatic breaking and connection of a power plug-in unit and a busbar of the drawer in the power distribution cabinet through mobile phone, flat plate or computer operation, complete electric energy isolation of equipment is formed, an operator can remotely handle power interruption business without entering a power distribution room, the safety risk increase of maintenance staff of a coal preparation plant is greatly reduced, and the working efficiency and the control accuracy are improved;

2. according to the device for automatically pushing and pulling the drawer of the power distribution cabinet, the double-shaft stepping motor is connected with the manual knob, so that manual control can be realized through the manual knob if automatic pushing and pulling of the drawer cannot be well controlled through the PLC, and double insurance is increased;

3. according to the device for automatically pushing and pulling the drawer of the power distribution cabinet, the guide rail and the sliding block are arranged at the bottom of the drawer, so that friction resistance between the bottom surface of the drawer and the cabinet body of the contact part of the power distribution cabinet is reduced, accurate matching of all parts of the device can be realized, and control precision is improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a device for automatically pushing and pulling drawers of a power distribution cabinet, which is provided by the embodiment of the utility model;

fig. 2 is a schematic diagram of a partial structure of a device for automatically pushing and pulling drawers of a power distribution cabinet according to an embodiment of the present utility model.

The reference numerals are as follows:

1-bracket, 2-stepping motor, 3-coupling, 4-screw rod, 5-controller, 6-manual knob, 7-nut seat, 8-drawer, 9-guide rail, 10-cabinet and 11-slide block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the embodiments described below are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Accordingly, the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings, is intended to represent only selected embodiments of the present application, and not to limit the scope of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Fig. 1 is a schematic diagram of the overall structure of a device for automatically pushing and pulling drawers of a power distribution cabinet according to an embodiment of the present utility model.

As shown in fig. 1, a device for automatically pushing and pulling a drawer of a power distribution cabinet comprises a bracket 1, a stepping motor 2, a coupler 3, a screw rod 4, a controller 5, a manual knob 6, a nut seat 7, a guide rail 9 and a sliding block 11; the stepping motor 2 adopted by the utility model is a double-shaft stepping motor, and the adopted controller 5 is a PLC controller.

The bracket 1 is fixed on the right side surface of the power distribution cabinet 10 through screws, the shaft coupling 3 is arranged on the bracket 1, the screw rod 4 and the double-shaft stepping motor are respectively arranged at two ends of the shaft coupling 3, one rotating shaft of the double-shaft stepping motor is connected with the shaft coupling 3, the other rotating shaft is connected with the manual knob 6, and if the automatic pushing and pulling out of the drawer 8 can not be well controlled through the PLC controller, the manual control can be realized through the manual knob 6; the driver of the double-shaft stepping motor is electrically connected with the PLC, the PLC controls the rotation direction and the rotation distance of the double-shaft stepping motor through the driver of the double-shaft stepping motor, and an output port of the PLC prompts a position signal of the double-shaft stepping motor; the PLC is externally connected with a limit writing program, and the drawer 8 stops moving after being in place through program interlocking; the staff can carry out remote control to PLC through cell-phone, panel or computer operation, realizes long-range automatic breaking and connection with female row with the power plug-in components of drawer 8 in the switch board 10, forms the complete electric energy isolation of equipment.

The bottom of the inner side of the drawer 8 is provided with a nut seat 7, the nut seat 7 is provided with a screw hole matched with the screw rod 4, the axis of the screw hole is in the same horizontal plane with the axis of the screw rod 4, the power distribution cabinet 10 is provided with a through hole at a position corresponding to the screw hole, and the screw rod 4 sequentially passes through the through hole and the nut seat 7 on the power distribution cabinet 10 from right to left; the position that switch board 10 and drawer 8 bottom contact is provided with guide rail 9, and drawer 8 installs on guide rail 9 through the slider 11 that sets up in its bottom both sides, reduces the frictional resistance of the bottom surface of drawer 8 and the switch board 10 contact part cabinet body through guide rail 9 and slider 11 on the one hand, on the other hand can realize the accurate cooperation of each part of the device, has mentioned control accuracy.

Using a device for automatically pushing and pulling drawers of a power distribution cabinet shown in fig. 2, the process of automatically stopping and transmitting power is as follows:

1. and (3) power failure: firstly, the upper computer is required to remotely or manually split the circuit breaker of the power distribution cabinet 10 on site, then, when the state that the circuit breaker is split is detected, the double-shaft stepping motor is started, and when the driver of the double-shaft stepping motor acts, the screw rod 4 is driven to rotate through the coupler 3 to drive the nut seat 7 to do linear motion, so that the drawer 8 is pulled out to a limiting position.

2. And (3) power transmission: firstly, detecting that the circuit breaker is not closed, starting a double-shaft stepping motor, driving a screw rod 4 to reversely rotate through a coupler 3 after the driver of the double-shaft stepping motor acts to drive a nut seat 7 to do reverse linear motion so as to push a drawer 8, detecting that the work is limited by a PLC, controlling the double-shaft stepping motor to stop rotating, and then manually or remotely closing the circuit breaker to finish power transmission operation.

Locking relationship: when the double-shaft stepping motor operates, the breaker and the starting equipment are not allowed to be closed in the state that the breaker is opened. If the automatic pushing and pulling out of the drawer 8 can not be well controlled by the PLC controller, the manual control of the rotation of the double-shaft stepping motor can be realized by rotating the manual knob 6, so that the screw rod 4 is driven to rotate to drive the nut seat 7 to do linear motion to push in or pull out the drawer 8.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (6)

1. A device for automatic push-and-pull drawer of switch board, drawer (8) set up in switch board (10), its characterized in that:

comprises a bracket (1), a stepping motor (2), a coupler (3), a screw rod (4), a controller (5) and a nut seat (7);

the device comprises a support (1), a power distribution cabinet (10), a shaft coupling (3), a screw rod (4) and a stepping motor (2), wherein the shaft coupling (1) is arranged on the support (1), the screw rod and the stepping motor (2) are respectively arranged at two ends of the shaft coupling (3), the output end of the stepping motor (2) is connected with the shaft coupling (3), a driver of the stepping motor (2) is electrically connected with a controller (5), and the controller (5) controls the rotation direction and the rotation distance of the stepping motor (2) through the driver of the stepping motor (2);

the stepping motor (2) is a double-shaft stepping motor;

the double-shaft stepping motor is provided with a manual knob (6) at one end far away from the coupler (3), and the manual knob (6) is connected with a rotating shaft of the double-shaft stepping motor at the side;

the novel power distribution cabinet is characterized in that a nut seat (7) is arranged at the bottom of the inner side of the drawer (8), a screw hole matched with the screw rod (4) is formed in the nut seat (7), the axis of the screw hole and the axis of the screw rod (4) are in the same horizontal plane, a through hole is formed in the position, corresponding to the screw hole, of the power distribution cabinet (10), and the screw rod (4) sequentially penetrates through the through hole and the nut seat (7).

2. The apparatus for automatically pushing and pulling drawers of a power distribution cabinet of claim 1, wherein:

the power distribution cabinet (10) is provided with a guide rail (9) at the contact position of the bottom of the drawer (8), and the drawer (8) is arranged on the guide rail (9) in a sliding mode.

3. The apparatus for automatically pushing and pulling drawers of a power distribution cabinet of claim 2, wherein:

the controller (5) is a PLC controller or a singlechip controller.

4. A device for automatically pushing and pulling drawers for power distribution cabinets as in claim 3, characterized in that:

the singlechip controller is an STM32 singlechip controller or a 51 singlechip controller.

5. The apparatus for automatically pushing and pulling drawers of a power distribution cabinet of claim 4, wherein:

the two sides of the bottom of the drawer (8) are provided with sliding blocks (11), and the drawer (8) is connected with the guide rail (9) through the sliding blocks (11).

6. The apparatus for automatically pushing and pulling drawers of a power distribution cabinet of claim 5, wherein:

the bracket (1) is connected with the power distribution cabinet (10) through screws or is stuck on the power distribution cabinet (10).