CN106374370B - A kind of high-tension switch cabinet special-purpose combined type movement driving - Google Patents

Abstract

The invention discloses a special combined mobile crane for high-voltage switchgear, which comprises: a workbench and a control device; a rotating mechanism and a moving mechanism are arranged on the workbench; On the output shaft of the rotating motor, the driven wheel is engaged with the driving wheel; the moving mechanism includes a first vertical beam, a second vertical beam, an I-beam beam, an electric hoist set on the I-beam beam, and an electric hoist set on the workbench. The arc-shaped guide rail; the first vertical beam is provided with a rotating gear meshing with the driven wheel, the bottom end of the second vertical beam is arranged in the arc-shaped guide rail, and the two ends of the I-beam beam are respectively arranged on the first vertical beam , the top of the second vertical beam; the control device includes a rotation control module for controlling the rotation motor and a movement control module for controlling the electric hoist. The invention realizes the functions of stable lifting, light transportation, multi-directional movement adjustment and the like.

Description

A special combined mobile crane for high voltage switchgear

technical field

The invention relates to a high-voltage switch cabinet handling device, in particular to a special combined mobile crane for high-voltage switch cabinets.

Background technique

At present, the high-voltage switchgear mainly uses roller bars and crowbars to pry and move when entering the site. Finally, jacks are used to adjust back and forth when splicing. seam distance. This method does not waste manpower and material resources, and it will inevitably cause damage to the ground and the equipment itself during placement.

Contents of the invention

In order to solve the above problems, the present invention provides a combined mobile crane suitable for the high-voltage switchgear to enter the site and realize functions such as stable lifting, light transportation, and multi-directional mobile adjustment.

The technical solution of the present invention is: a special combined mobile crane for high-voltage switchgear, including: a workbench and a control device; the workbench is provided with a rotating mechanism and a moving mechanism;

The rotating mechanism includes: a rotating motor, a driving wheel and a driven wheel; the driving wheel is arranged on the output shaft of the rotating motor, and the driven wheel meshes with the driving wheel;

The moving mechanism includes a first vertical beam, a second vertical beam, an I-beam beam, an electric hoist arranged on the I-beam beam, and an arc-shaped guide rail arranged on the workbench; The rotating gear meshed with the driven wheel, the bottom end of the second vertical beam is arranged in the arc-shaped guide rail, and the two ends of the I-beam cross beam are respectively arranged on the top of the first vertical beam and the second vertical beam;

The control device includes a rotation control module for controlling the rotation motor and a movement control module for controlling the electric hoist.

Further, the rotation control module includes: a microcontroller, a control switch, a filter rectifier circuit, a drive circuit, a speed control device, and a speed detection circuit;

The input end of the rectification filter circuit is connected to the mains, the output end of the rectification filter circuit is connected to the execution input end of the control switch, the execution output end of the control switch is connected to the speed control device, the speed control device is connected to the speed detection circuit, the speed detection circuit is connected to the motor, and the control switch The control terminal is connected to the drive circuit, and the drive circuit is connected to the microcontroller;

The speed detection circuit includes photodiode D1, photodiode D2, resistor R1, resistor R2, and transistor Q1; the anode of photodiode D1 and the cathode of photodiode D2 are respectively connected to the voltage source, and the cathode of photodiode D1 is connected to the emission of transistor Q1 through resistor R1. The anode of the photodiode D2 is connected to the base of the transistor Q1, the collector of the transistor Q1 is connected to the voltage source through the resistor R2, and the emitter of the transistor Q1 is grounded; the node between the collector of the transistor Q1 and the resistor R2 is a signal output terminal; The photodiode D1 and the photodiode D2 are installed on both sides of the blades of the rotating electrical machine respectively.

Further, the movement control module includes: an ascending control unit, a descending control unit, a left shifting control unit, and a right shifting control unit.

Further, two reinforcing ribs are arranged symmetrically on the first vertical beam, and a slide rail adapted to the bottom end of the reinforcing ribs is arranged on the workbench.

Further, the electric hoist is a double guide chain low headroom electric hoist.

Further, guide wheels are provided at the bottom of the workbench.

The special combined mobile crane for high-voltage switchgear provided by the invention, the electric hoist of the moving mechanism lifts the high-voltage switchgear off the ground to realize the vertical take-off and landing of the high-voltage switchgear, and the electric hoist can move left and right on the I-beam beam to realize the high-voltage switchgear The left and right translation of the cabinet; the rotating mechanism can drive the moving mechanism to turn, so as to realize the turning of the high-voltage switchgear. The high-voltage switchgear can move up, down, left, and right, and can be turned, and can move in all directions, and finally meet the precise positioning of the equipment. The device cooperates with the control device to realize the control of the moving position, which greatly reduces the input of manpower and material resources, and greatly improves the work efficiency. In addition, the moving mechanism of the device adopts double-channel steel vertical type, which reduces the duty cycle and increases the lifting space while ensuring the lifting strength.

Description of drawings

Fig. 1 is a front view of the structure of a specific embodiment of the present invention.

Fig. 2 is a top view of the structure of a specific embodiment of the present invention.

Fig. 3 is a right view of the structure of a specific embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of the rotation control module.

Figure 5 is a schematic diagram of the rotational speed detection circuit.

In the figure, 1 electric hoist, 2 I-beam beam, 3 first vertical beam, 4 reinforcing rib, 5 rotating gear, 6 driven wheel, 7 driving wheel, 8 rotating motor, 9 workbench, 10 guide wheel, 11 Two vertical beams, 12 slide rails, 13 arc-shaped guide rails, 14 filter rectification circuit, 15 control switch, 16 speed control device, 17 speed detection circuit, 18 drive circuit, 19 microcontroller, R1, R2 resistors, D1, D2 photodiode, Q1 transistor.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

As shown in Figures 1-3, the combined mobile crane for high-voltage switchgear provided by the present invention includes a workbench 9 and a control device; the workbench 9 is provided with a rotating mechanism and a moving mechanism. The guide wheel 10 is arranged at the bottom of the workbench 9, which is convenient for moving the mobile crane to a designated position, saves manpower and material resources, and improves work efficiency.

The rotating mechanism includes: a rotating motor 8 , a driving wheel 7 and a driven wheel 6 ; The rotating motor 8 drives the driving wheel 7 to drive the driven wheel 6 to rotate.

The moving mechanism includes a first vertical beam 3 , a second vertical beam 11 , an I-beam beam 2 , an electric hoist 1 arranged on the I-beam 2 , and an arc-shaped guide rail 13 arranged on the workbench 9 . The first vertical beam 3 is provided with a rotating gear 5 meshed with the driven wheel 6, the bottom end of the second vertical beam 11 is arranged in the arc guide rail 13, and the two ends of the I-beam beam 2 are respectively arranged in the first vertical rail. Beam 3, the top of the second vertical beam 11. The driven wheel 6 drives the first vertical beam 3 to rotate, thereby driving the electric hoist 1 on the I-beam beam 2 to hang the high-voltage switchgear to turn. In order to enhance the stability of the mobile crane, two reinforcing ribs 4 are arranged symmetrically on the first vertical beam 3 , and a slide rail 12 adapted to the bottom of the reinforcing ribs 4 is provided on the workbench 9 . Electric hoist 1 adopts double guide chain low clearance electric hoist 1, with a rated lifting weight of 2000kg, a lifting height of 2 meters, and a clearance height of 48cm, which meets the lifting requirements.

The control device includes a rotation control module for controlling the rotation motor 8 and a movement control module for controlling the electric hoist 1 .

The movement control module includes: an ascending control unit, a descending control unit, a left shifting control unit, and a right shifting control unit, which can conveniently and precisely control the up, down, left, and right movements of the electric hoist 1 .

As shown in FIG. 4 , the rotation control module includes: a microcontroller 19 , a control switch 15 , a filter rectifier circuit 14 , a drive circuit 18 , a speed control device 16 , and a speed detection circuit 17 .

The input end of the rectification filter circuit is connected to the mains, the output end of the rectification filter circuit is connected to the execution input end of the control switch 15, the execution output end of the control switch 15 is connected to the speed control device 16, the speed control device 16 is connected to the speed detection circuit 17, and the speed detection circuit 17 is connected to the motor, the control terminal of the control switch 15 is connected to the drive circuit 18, and the drive circuit 18 is connected to the microcontroller 19. The filter and rectifier circuit 14 is used to rectify the 220V mains voltage into a pulsating direct current, and reduce the AC component in the pulsating direct voltage under the action of the filter circuit, thereby obtaining a low ripple coefficient of the output voltage and a smooth waveform. direct current. The microcontroller 19 controls the forward and reverse rotation of the rotary motor 8 through the drive circuit 18, and the control switch 15 is turned on or off according to the control command of the drive circuit 18. After the control switch 15 is turned on, direct current is added to the rotary motor 8 through the speed control device 16; The rotational speed acquisition module acquires the rotational speed of the rotating electrical machine 8 and feeds it back to the microcontroller 19 through the signal processing circuit. The stable control of the rotating motor 8 is realized, and the control precision is high, which satisfies the precise positioning of the high-voltage switchgear.

As shown in Figure 5, the speed detection circuit 17 includes a photodiode D1, a photodiode D2, a resistor R1, a resistor R2, and a transistor Q1; the positive pole of the photodiode D1 and the negative pole of the photodiode D2 are respectively connected to a voltage source, and the negative pole of the photodiode D1 The resistor R1 is connected to the emitter of the transistor Q1, the anode of the photodiode D2 is connected to the base of the transistor Q1, the collector of the transistor Q1 is connected to the voltage source through the resistor R2, and the emitter of the transistor Q1 is grounded; between the collector of the transistor Q1 and the resistor R2 The node of is the signal output end; the photodiode D1 and the photodiode D2 are installed on both sides of the blades of the rotary motor 8 respectively. Photodiode D1 is an infrared emitting tube, and photodiode D2 is an infrared receiving tube. When the motor rotates, the blades block the infrared rays and cannot receive signals, and can receive signals when they cannot be blocked. The number of pulses can be obtained, and the time for one revolution can be calculated according to the number of blades, that is, the rotational speed can be obtained. When the rotating motor 8 is too fast when there is a fault, the microcontroller 19 controls the control switch 15 to be disconnected through the drive circuit 18, so that the power supply of the rotating motor 8 can be turned off, the rotating motor 8 is protected, and the electrical components are also protected, while avoiding high voltage The switch cabinet shakes too much and is damaged.

The above disclosure is only a preferred embodiment of the present invention, but the present invention is not limited thereto, any non-creative changes that those skilled in the art can think of, and some improvements and modifications made without departing from the principle of the present invention , should fall within the protection scope of the present invention.

Claims (5)

1. A special combined mobile crane for high-voltage switchgear, characterized in that it includes: a workbench and a control device; the workbench is provided with a rotating mechanism and a moving mechanism; The rotating mechanism includes: a rotating motor, a driving wheel and a driven wheel; the driving wheel is arranged on the output shaft of the rotating motor, and the driven wheel meshes with the driving wheel; The moving mechanism includes a first vertical beam, a second vertical beam, an I-beam beam, an electric hoist arranged on the I-beam beam, and an arc-shaped guide rail arranged on the workbench; The rotating gear meshed with the driven wheel, the bottom end of the second vertical beam is arranged in the arc-shaped guide rail, and the two ends of the I-beam cross beam are respectively arranged on the top of the first vertical beam and the second vertical beam; The control device includes a rotation control module for controlling the rotation motor and a movement control module for controlling the electric hoist; The rotation control module includes: a microcontroller, a control switch, a rectification filter circuit, a drive circuit, a speed control device, and a speed detection circuit; The input end of the rectification filter circuit is connected to the mains, the output end of the rectification filter circuit is connected to the execution input end of the control switch, the execution output end of the control switch is connected to the speed control device, the speed control device is connected to the speed detection circuit, the speed detection circuit is connected to the motor, and the control switch The control terminal is connected to the drive circuit, and the drive circuit is connected to the microcontroller; The speed detection circuit includes photodiode D1, photodiode D2, resistor R1, resistor R2, and transistor Q1; the anode of photodiode D1 and the cathode of photodiode D2 are respectively connected to the voltage source, and the cathode of photodiode D1 is connected to the emission of transistor Q1 through resistor R1. The anode of the photodiode D2 is connected to the base of the transistor Q1, the collector of the transistor Q1 is connected to the voltage source through the resistor R2, and the emitter of the transistor Q1 is grounded; the node between the collector of the transistor Q1 and the resistor R2 is a signal output terminal; The photodiode D1 and the photodiode D2 are installed on both sides of the blades of the rotating electrical machine respectively. 2. The special combined mobile crane for high voltage switchgear according to claim 1, characterized in that the mobile control module includes: an ascending control unit, a descending control unit, a left shifting control unit, and a right shifting control unit. 3. The special combined mobile crane for high-voltage switchgear according to claim 1 or 2, characterized in that two reinforcing ribs are arranged symmetrically on the first vertical beam, and the workbench is provided with a rails. 4. The special combined mobile crane for high-voltage switchgear according to claim 1 or 2, characterized in that the electric hoist is a double-guide chain low-room electric hoist. 5. The special combined mobile crane for high-voltage switchgear according to claim 1 or 2, characterized in that guide wheels are provided at the bottom of the workbench.