CN112027968A - Lifting platform for transformer substation maintenance - Google Patents

Abstract

The invention discloses a lifting platform for substation maintenance, including a scissor lift. The scissor lift includes a top plate, a bottom plate and an electric push rod. A PLC is installed on the scissor lift. The electric push rod The control end of the first is electrically connected to the output end of the PLC. A plurality of connecting ropes are vertically arranged between the top plate and the bottom plate. The connecting ropes are provided with moving grooves. The top plate and the bottom plate are provided with driving moving grooves to move up and down. In the present invention, the required tools can be transported to the hands of the staff when the scissor lift is not lowered, so as to improve the maintenance efficiency.

Description

A lifting platform for substation maintenance

technical field

The invention relates to the technical field of substations, in particular to a lifting platform for maintenance of substations.

Background technique

Substations need frequent testing, inspection and maintenance during operation. For equipment located at high places, it is usually necessary to use a scissor lift to move the lift to a suitable position. The staff stands on the top plate of the lift and raises the lift to Appropriate height, at this time, the staff can carry out high-altitude operations, but in the actual work process, due to various emergencies, when the tools carried by the staff are not enough to solve the problems they face, the usually adopted solution is to increase the height of the lift. Lowering, after carrying the required tools, the lift is raised to the same height as before, and the work is continued, and the work efficiency is reduced; and in some emergency situations, the staff cannot evacuate the fault point, and it is difficult to obtain the tools.

The Chinese utility model patent with publication number CN210764135U discloses a multifunctional hydraulic lifting platform, belonging to the technical field of lifting equipment, including a loading platform and a bottom plate, the loading platform is arranged on the upper part of the bottom plate, and between the loading platform and the bottom plate Connected by two sets of support assemblies, a hydraulic push rod that drives the support assemblies to lift and lower is arranged above the bottom plate, a cavity is arranged on the upper part of the loading platform, and a discharge plate is arranged in the cavity, and the discharge A number of rollers are rotated on the upper part of the plate, and the bottom of the discharge plate is connected to the bottom plate through a multi-section telescopic rod. Through the setting of the discharge plate, the roller and the telescopic rod, when the goods are unloaded, the goods can be pushed to the edge of the loading platform , cooperate with the pull-out first plate body and the second plate body hinged with the first plate body, so that the first plate body can be inclined between the loading platform and the ground, and the cargo sliding to the edge of the loading platform can be carried out. Support, it is not possible to transport items to the top surface of the lift platform without raising the lift.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to address the deficiencies of the prior art, and provide a lifting platform for substation maintenance, which can transport the required tools to the hands of the staff when the scissor lift is not lowered, thereby improving the maintenance efficiency.

To achieve the above object, the present invention adopts the following technical solutions:

A lifting platform for substation maintenance includes a scissor lift, the scissor lift includes a top plate, a bottom plate and an electric push rod 1, a PLC 1 is installed on the scissor lift, and a control end of the electric push rod 1 It is electrically connected to the output end of PLC 1, a plurality of connecting ropes are vertically arranged between the top plate and the bottom plate, a moving groove is arranged on the connecting rope, and a driving component for driving the moving groove to move up and down is arranged in the top plate and the bottom plate.

Further, the top plate is provided with a hollow cavity 1, and the bottom plate is provided with a hollow cavity 2. The hollow cavity 1 is detachably connected to the accommodating box 1, and the hollow cavity 2 is detachably connected to the accommodating box 2. The driving assembly includes a first rotating shaft and a second rotating shaft, the first rotating shaft is rotatably connected in the first accommodating box, the second rotating shaft is rotatably connected in the second accommodating box, and one end of the connecting rope is wound on the first rotating shaft, The other end is wound on the second rotating shaft, the first rotating shaft is driven by the first motor, the second rotating shaft is driven by the second motor, and the first and second motors are both electrically connected to the output end of the PLC one.

Further, the first rotating shaft and the second rotating shaft are two or more, and two or more connecting ropes are arranged between the first rotating shaft and the second rotating shaft corresponding to each group, and the multiple rotating shafts are One rotates synchronously, and the multiple rotating shafts rotate synchronously.

Further, the first motor and the first rotating shaft are arranged on the first sliding plate, the second electric push rod that drives the first sliding plate to move left and right is arranged in the first receiving box, and the first motor and the second rotating shaft are arranged on the second sliding plate. On the upper side, an electric push rod 3 that drives the sliding plate 2 to move left and right is arranged in the second accommodation box, and the electric push rod 2 and the electric push rod 3 are electrically connected to the output end of the PLC 1.

Further, a plurality of L-shaped threading blocks 1 are arranged in the first accommodation box, and a plurality of L-shaped threading blocks 2 are arranged in the accommodation box 2. The other end of the connecting rope passes through the second threading block and is connected to the second rotating shaft. The connecting rope between the first threading block and the first rotating shaft is perpendicular to the first rotating shaft. perpendicular to the second axis of rotation.

Further, the moving slot includes a mounting block and an accommodating slot, the mounting block is fixed on the connecting rope, and the accommodating slot protrudes from the top plate.

Further, a bearing plate is arranged in the accommodating groove, and an elevator is arranged between the bearing plate and the inner bottom surface of the accommodating groove.

Further, a pressure sensor is arranged between the load-bearing plate and the elevator, the second PLC is arranged in the accommodating tank, and the pressure sensor is electrically connected to the input end of the second PLC.

The beneficial effects of the present invention are:

There is a moving groove on the connecting rope. The movement of the moving groove can be realized by driving the connecting rope to move through the driving component. The required tools are placed in the moving groove, and the moving groove is moved to the highest position under the action of the driving component, so that the staff Access to tools without the need to lower the scissor lift increases maintenance efficiency.

Description of drawings

1 is a schematic structural diagram of a first embodiment of the present invention;

Fig. 2 is a schematic diagram of the structure between the connecting rope and the first and second accommodating boxes;

Fig. 3 is the split schematic diagram of Fig. 2;

4 is a schematic diagram of the internal structure of the container box one;

Fig. 5 is the structural representation of moving groove;

6 is a schematic structural diagram of a second embodiment of the present invention;

7 is a schematic structural diagram of a third embodiment of the present invention;

Among them, 1-top plate, 2-bottom plate, 3-electric push rod one, 4-PLC one, 5-connecting rope, 6-moving slot, 7-accommodating box one, 8-accommodating box two, 9-rotating shaft one, 10-rotating shaft two, 11-motor one, 12-motor two, 13-slide plate one, 14-electric push rod two, 15-slide plate two, 16-electric push rod three, 17-threading block one, 18- Threading block two, 19-installation block, 20-accommodating slot, 21-bearing plate, 22-lifter, 23-pressure sensor, 24-PLC two, 25-cylinder, 26-top cover, 27-installation slot, 28- Fixed block, 29-clearing slot, 30-disc, 31-gear, 32-gear belt, 33-card slot, 34-distance sensor, 35-battery, 36-switch.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Figures 1-5 show the first embodiment of the present invention, a lifting platform for substation maintenance, including a scissor lift. The scissor lift includes a top plate 1, a bottom plate 2 and an electric push rod-3. PLC-4 is installed on the elevator, the control end of electric push rod-3 is electrically connected with the output end of PLC-4, a plurality of connecting ropes 5 are vertically arranged between the top plate 1 and the bottom plate 2, and a moving slot 6 is arranged on the connecting rope 5 5, the structure of the moving slot 6 is shown in Figure 5. The moving slot 6 is composed of a mounting block 19 and an accommodating slot 20. The mounting block 19 is a cuboid shell-shaped structure, and the accommodating slot 20 is a cuboid shell-shaped structure with an open top. The mounting block 19 and The accommodating groove 20 is fixedly connected by means of gluing, etc., the top plate and the bottom plate of the mounting block 19 are welded with multiple groups of cylinders 25 corresponding to the upper and lower sides, and the top and bottom of the mounting block 19 are punched with through holes that communicate with the cylinders 25. 5. After being vertically inserted into the cylinder 25, it is fixedly connected to the cylinder 25 by means of glue, etc., so as to realize the fixed connection between the mounting block 19 and the connecting rope 5. At this time, the moving groove 6 moves with the movement of the connecting rope 5.

As shown in Figure 1, a hollow cavity 1 with a rectangular parallelepiped structure is machined in the top plate by a lathe. The hollow cavity 1 is detachably connected to a accommodating box 7, and the accommodating box 1 7 is a cuboid shell structure with an open right end, as shown in Figure 2, The accommodating box 17 is formed by combining the top cover 26 and the installation slot 27. A plurality of through holes are punched on the top plate 1 by a punching machine, and screw holes corresponding to the through holes are punched in the installation slot 27 by a tapping machine. Connect bolt 1, and screw the bottom end of bolt 1 into the screw hole. The detachable connection between the hollow cavity 1 and the accommodating box 1 8 is as follows: between the accommodating box 1 8 and the top plate 1, corresponding four sets of through holes are punched by a punching machine, and the pin shaft is inserted into the through hole, and the pin shaft is inserted into the through hole. The bottom end is threaded through the die, the thread is connected with a nut, and the second hollow cavity 2 is detachably connected to the accommodating box 2 8, the accommodating box 2 8 is exactly the same as the accommodating box 1 7, and the connection between the accommodating box 2 8 and the hollow cavity 2 It is exactly the same as the connection between the accommodating box 1 and the hollow cavity 1.

The top plate 1 and the bottom plate 2 are provided with a drive assembly that drives the moving groove 6 to move up and down. The drive assembly includes a rotating shaft one 9 and a rotating shaft two 10. As shown in Figure 3, the rotating shaft one 9 is rotatably connected in the accommodating box one 7. The method is as follows: the two ends of the rotating shaft 9 are welded with bearings, the bearings are fixed in the fixing block 28 provided with the round hole by glue, the fixing block 28 is welded on the inner bottom surface of the accommodating box 1 7, and the rotating shaft 2 10 is rotatably connected to the accommodating box 10. In the second box 8, the connection method is the same as the connection method between the rotating shaft one 10 and the accommodating box one 7. The top end of the connecting rope 5 is fixed on the outer peripheral surface of the rotating shaft one 9 by welding or the like, the top end of the connecting rope 5 is wound on the rotating shaft one 9, and the bottom end of the connecting rope 5 is fixed on the rotating shaft two 10 by welding or the like. The bottom end of the connecting rope 5 is wound on the rotating shaft one 9, the container box one 7 is fixed with four L-shaped threading blocks one 17 by adhesive, and the four L-shaped threading blocks are fixed in the containing box two 8 by adhesive. Two 18, the top end of the connecting rope 5 is connected to the rotating shaft one 9 through the threading block one 17, the other end of the connecting rope 5 is connected to the rotating shaft two 10 through the threading block two 18, and the threading block one 17 is connected with the rotating shaft one 9. The connecting rope 5 is perpendicular to the rotating shaft one 9, the connecting rope 5 between the threading block two 18 and the rotating shaft two 10 is perpendicular to the rotating shaft two 10, and the connecting rope 5 between the accommodating box 1 7 and the accommodating box 2 8 is connected to the top plate. 1. The bottom plate 2 is vertical. The rotating shaft one 9 is driven by the motor one 11, the rotating shaft two 10 is driven by the motor two 12, the motor one 11 is fixed on the bottom surface of the accommodating box 1 7 by the bolt 2, and the rotating shaft 2 10 is fixed on the accommodating box 2 8 by the bolt 3. On the bottom surface, both the motor one 11 and the motor two 12 are electrically connected to the output end of the PLC one 4 .

As shown in FIG. 3 and FIG. 4 , in order to increase the stability of the fixing of the moving groove 6, two rotating shafts 9 and two rotating shafts 10 are provided, and the corresponding rotating shafts 1 9 and the second rotating shafts 10 in each group are respectively Two connecting ropes 5 are provided, and four discs 30 are welded to each of the first rotating shaft 9 and the second rotating shaft 10 . In order to make the two rotating shafts 1/2 rotate synchronously and ensure the stability of the rising process of the moving groove 6, gears 31 are welded on the two rotating shafts 1/2, and a gear belt 32 is installed between the two gears 31. One of the rotating shafts One/two is driven by motor one/two.

In order to prevent the connecting rope 5 from being easily broken, a steel wire rope with a diameter of 2 cm is used as the connecting rope 5. In order to make the connecting rope 5 wound on the rotating shaft one 9 and the rotating shaft two 10 in an orderly manner, to ensure that the moving groove 6 is stably up and down. Moving, as shown in Figure 4, the motor one 11 and the rotating shaft one 9 are both installed on the sliding plate one 13 of the cuboid plate structure through the bolt two, that is, the motor one 11 and all the fixing blocks 28 are fixedly installed on the sliding plate one 15. On the upper surface of the upper surface of the housing box one 7, a cuboid-shaped card slot 33 having the same width as the sliding plate one 15, and a length and height greater than that of the sliding plate one 15, the sliding plate one 13 is placed in the card slot 33. Inside 18, there is an electric push rod 2 14 that drives the sliding plate 1 13 to move left and right. The setting method is as follows: the right side of the card slot 33 is fixed by glue or other means. The head is fixedly connected with the left end face of the sliding plate 1 13 by means of glue, etc., the electric push rod 2 14 is extended, the sliding plate 1 13 slides to the left, the electric push rod 2 14 is shortened, the sliding plate 1 13 slides to the right, the motor The second 13 and the second rotating shaft 10 are arranged on the second sliding plate 15, in the same manner as the first motor 11 and the second rotating shaft 9 are arranged on the first sliding plate 13, and the second accommodating box 8 is provided with a drive to drive the second sliding plate 15 to move left and right. The electric push rod 3 16 is arranged in the same manner as the electric push rod 2 14 in the accommodation box 1 7 . The electric push rod 2 14 and the electric push rod 3 16 are electrically connected to the output end of the PLC 1 4 .

A distance sensor 34 is installed on the top plate and the bottom plate of the mounting block 19. The two distance sensors 34 measure the distance between the top surface of the mounting block 19 and the bottom surface of the top plate 1, the distance between the bottom surface of the mounting block 19 and the top surface of the bottom plate 2, respectively. Each of the distance sensors 34 is electrically connected to the input end of the PLC-4.

The staff stands on the top plate 1, starts the electric push rod 1 3, and the electric push rod 1 3 extends a certain length under the control of PLC-4. Start under the control of 14, the rotating shaft 19 rotates, the electric push rod 2 14 reciprocates and retracts, and the connecting rope 5 wound on the rotating shaft 19 is wound out. When the top plate 1 rises to a suitable height, the electric push rod 13 , Motor 1 11 and electric push rod 2 14 are stopped, and an emergency occurs. When new tools and equipment are needed but the staff cannot evacuate, the required tools and equipment are placed in the accommodating tank 20 and started simultaneously under the control of PLC-4. Motor one 11, motor two 12, electric push rod two 14, electric push rod three 16, the second rotating shaft 10 winds the connecting rope 5 out, and the rotating shaft one 9 winds the connecting rope 5 to realize the upward movement of the moving slot 6, The distance sensor 34 detects that the distance between the top surface of the mounting block 19 and the bottom surface of the top plate 1 is 2cm. From the top plate 1, the staff can get the tools; after the use of the moving slot 6 is completed, the motor one 11, the motor two 12, the electric push rod 2 14, the electric push rod 3 16, and the rotating shaft 1 are simultaneously activated under the control of the PLC 1 4. 9. The connecting rope 5 is wound out, and the rotating shaft 2 10 winds the connecting rope 5 to realize the downward movement of the moving groove 6. The distance sensor 34 detects that the distance between the bottom surface of the mounting block 19 and the top surface of the bottom plate 2 is 2cm, and the distance of the PLC-4 is 2cm. Control the motor one 11, the motor two 12, the electric push rod two 14, and the electric push rod three 16 to stop.

When it is necessary to clean and maintain the first 7 and the second 8 of the accommodating box, remove the pin, and pull the first 7 and the second 8 of the accommodating box from the accommodating cavity 1 and the accommodating cavity 2, and the top plate 1 and the bottom plate 2 are provided with The removal groove 29 for the connecting rope 5 to be moved in or out is convenient for the removal of the connecting rope 5, and then the second nut is unscrewed, and the top cover 26 is removed.

Embodiment 2

FIG. 6 shows the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a cuboid plate-shaped bearing plate 21 is arranged in the accommodating groove 20 , and the front, rear, left, right, and four walls of the bearing plate 21 are connected to the accommodating groove. The distance between the inner walls of the 20 is 3mm, a lift 22 is installed between the bearing plate 21 and the accommodating groove 20, the top plate of the lift 22 and the bearing plate 21 are connected by three bolts, the bearing plate 21 is punched with smooth round holes, and the three bolts are inserted vertically. In the round hole, a screw hole is punched on the top plate of the lifter 22, the bottom end of the bolt 3 is threaded in the screw hole, the bottom plate of the lifter 22 and the bottom plate of the accommodating slot 20 are connected by bolts 4, and the battery 35 is installed on the bottom plate of the accommodating slot 20, The battery 35 supplies power to the lifter 22. Two switches 36 are installed on the accommodating tank 20. Press the switch 36 at the top, the lifter 22 is raised, the load-bearing plate 21 is moved up, and the switch 32 at the bottom is pressed, the lifter 22 is lowered, and the load-bearing plate 21 is lowered. shift. The height inside the accommodating tank 20 is relatively high, and when there are many items placed, the items located at the bottom are not easy to be taken out. At this time, the elevator 22 can be raised, and the items can be easily taken out.

Implementation three

FIG. 7 shows the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that a pressure sensor 23 is placed between the load-bearing plate 21 and the elevator 22, and a second PLC 24 is installed in the accommodating groove 20. The pressure sensor is electrically connected to the input end of the second PLC 24, and instruments and equipment are placed on the bearing plate 21. If the weight is too large and exceeds the set value, the second PLC 24 sends an alarm signal.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention do not depart from the spirit and the technical solutions of the present invention. The scope should be included in the scope of the claims of the present invention.

Claims (8)

1. A lifting platform for substation maintenance, comprising a scissor lift, the scissor lift comprising a top plate (1), a bottom plate (2) and an electric push rod (3), and a PLC is installed on the scissor lift One (4), the control end of the electric push rod one (3) is electrically connected with the output end of the PLC one (4), and it is characterized in that, there are multiple vertically arranged between the top plate (1) and the bottom plate (2). A connecting rope (5) is provided with a moving groove (6) on the connecting rope (5), and a driving component for driving the moving groove (6) to move up and down is provided in the top plate (1) and the bottom plate (2). 2 . The lifting platform for substation maintenance according to claim 1 , wherein the top plate ( 1 ) is provided with a first hollow cavity, and the bottom plate ( 2 ) is provided with a second hollow cavity, and the hollow The first cavity (7) is detachably connected to the accommodating box, and the second cavity is detachably connected to the second accommodating box (8). The drive assembly includes a rotating shaft one (9) and a rotating shaft two (10). The first rotating shaft (9) is rotatably connected to the first (7) of the accommodating box, the second (10) of the rotating shaft is rotatably connected to the second (8) of the accommodating box, and one end of the connecting rope (5) is wound around the first (1) rotating shaft ( 9), the other end is wound on the rotating shaft two (10), the rotating shaft one (9) is driven by the motor one (11), the rotating shaft two (10) is driven by the motor two (12), the The first motor (11) and the second motor (12) are electrically connected to the output end of the first PLC (4). 3 . The lifting platform for substation maintenance according to claim 2 , wherein the first rotating shaft ( 9 ) and the second rotating shaft ( 10 ) are two or more, and each group has a corresponding rotating shaft. 4 . Two or more connecting ropes (5) are arranged between the first axis (9) and the second rotating axis (10), the multiple rotating axes one (9) rotate synchronously, and the multiple rotating axis two ( 10) Synchronous rotation between. 4 . The lifting platform for substation maintenance according to claim 3 , wherein the first motor (11) and the first rotating shaft (9) are arranged on the first sliding plate (13), and the first accommodating box (13) is 4 . (7) Two electric push rods (14) that drive the sliding plate one (13) to move left and right are arranged inside, and the first motor (11) and the second rotating shaft (10) are arranged on the second sliding plate (15). The box two (8) is provided with an electric push rod three (16) that drives the sliding plate two (15) to move left and right, and the electric push rod two (14) and the electric push rod three (16) are electrically connected to the PLC one (4). output. 5 . The lifting platform for substation maintenance according to claim 4 , wherein a plurality of L-shaped threading blocks ( 17 ) are arranged in the first (7) accommodating box, and the second (8) accommodating box is provided. 6 . A plurality of L-shaped threading blocks (18) are arranged inside, one end of the connecting rope (5) is connected to the rotating shaft one (9) through the threading block one (17), and the other end of the connecting rope (5) is passed through the threading The second block (18) is connected to the second rotating shaft (10), the connecting rope (5) between the first threading block (17) and the first rotating shaft (9) is perpendicular to the first rotating shaft (9), and the threading block The connecting rope (5) between the two (18) and the second (10) rotating shaft is perpendicular to the second (10) rotating shaft. 6 . The lifting platform for substation maintenance according to claim 1 , wherein the moving groove ( 6 ) comprises a mounting block ( 19 ) and an accommodating groove ( 20 ), and the mounting block ( 19 ) is fixed on the On the connecting rope (5), the accommodating groove (20) protrudes from the top plate (2). 7 . The maintenance platform for a substation according to claim 6 , wherein a load-bearing plate ( 21 ) is arranged in the accommodating groove ( 20 ), and the bearing plate ( 21 ) and the inner bottom surface of the accommodating groove ( 20 ) are provided. 8 . An elevator (22) is provided in between. 8 . The maintenance platform for a substation according to claim 7 , wherein a pressure sensor ( 23 ) is arranged between the load-bearing plate ( 21 ) and the elevator ( 22 ), and a pressure sensor ( 23 ) is arranged in the accommodating groove ( 20 ). 9 . The second PLC (24), the pressure sensor (23) is electrically connected to the input end of the second PLC (24).

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