CN114109204B - Automatic height adjustment calibration device for cabinet door of transformer substation switch cabinet and control method - Google Patents

Automatic height adjustment calibration device for cabinet door of transformer substation switch cabinet and control method Download PDF

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Publication number
CN114109204B
CN114109204B CN202111423537.5A CN202111423537A CN114109204B CN 114109204 B CN114109204 B CN 114109204B CN 202111423537 A CN202111423537 A CN 202111423537A CN 114109204 B CN114109204 B CN 114109204B
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telescopic
connecting rod
cabinet door
rod
telescopic standard
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CN114109204A (en
Inventor
牛硕丰
李涛
徐珂
韩燕飞
李鑫
唐玉奇
李震
刘训彻
牛东涛
李建福
高纯
谢良争
闫静静
颜晓婷
徐琬舒
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State Grid Corp of China SGCC
Heze Power Supply Co of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Heze Power Supply Co of State Grid Shandong Electric Power Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/43—Pyrotechnical jacks
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Patch Boards (AREA)

Abstract

The invention relates to the technical field of power equipment, in particular to an automatic height-adjusting and calibrating device and a control method for a cabinet door of a transformer substation switch cabinet, wherein a first telescopic standard rod is vertically welded on a base of a hydraulic jack, and the top end of the first telescopic standard rod is horizontally connected with a second telescopic standard rod through a first connecting rod; the top of the piston of the hydraulic jack is fixedly connected with a Z-shaped lifting mechanism through a screw, a fourth telescopic standard rod is vertically welded above the Z-shaped lifting mechanism, and the top end of the fourth telescopic standard rod is horizontally connected with a third telescopic standard rod through a second connecting rod; a first buzzer electrode is fixed on the first connecting rod; and a second buzzer electrode is fixed on the second connecting rod. The beneficial effects of the invention are as follows: only two workers are needed, so that the working time can be greatly shortened, and the site construction efficiency is improved; the labor intensity of workers is greatly reduced, and certain potential safety hazards are reduced; the structure is simple, the implementation is easy, the cost is low, and the cost performance is high; can be widely applied to other related industries.

Description

Automatic height adjustment calibration device for cabinet door of transformer substation switch cabinet and control method
Technical Field
The invention relates to the technical field of power equipment, in particular to an automatic height adjustment calibrating device and a control method for a cabinet door of a transformer substation switch cabinet.
Background
Substations are important electrical facilities in electrical power systems that transform voltages, receive and distribute electrical energy, control the flow of electrical power, and regulate voltages. The transformer substation switch cabinet is commonly called as metal closed switch equipment, is used for receiving and distributing electric energy in a bus sectioning system, and is used for controlling, protecting, monitoring and measuring a power circuit, and is high-voltage equipment with the functions of switching on and off, arc extinguishing and isolating, so that the transformer substation switch cabinet directly supplies electricity to a user and is an important link of an electric energy transmission link. The cabinet door fastening bolts of the switch cabinet are all required to be matched according to the requirements when leaving the factory, and can be normally fastened. Because the cabinet body and the cabinet door structure can be slightly deformed in the transportation and installation processes, when the cabinet door is closed and the bolts are fastened, the bolts and the screw holes of the cabinet body are not positioned at the same center line. In the whole connection and fixation construction of the field switch cabinet, as the field switch cabinet weighs several tons, a plurality of people are required to adjust the switch cabinet by using tools such as jacks, crow bars and the like, the working efficiency is low and the field switch cabinet has certain potential safety hazard. The hydraulic transmission has large output force or torque, can realize low-speed large-tonnage movement, has the advantages of light weight, small volume, small movement inertia, high reaction speed, easy realization of serialization, standardization, generalization and the like, and is convenient for design, manufacture, maintenance and popularization and use.
Aiming at the problems of the transformer substation switch cabinet, the invention provides an automatic height adjustment calibration device and a control method.
Disclosure of Invention
The invention provides a set of transformer substation switch cabinet door heightening and calibrating device and a control method for overcoming the defect of difficult installation of a transformer substation switch cabinet in the prior art, and ensures certain safety while improving the field working efficiency.
The utility model provides an automatic calibrating device that increases of cubical switchboard cabinet door of transformer substation, includes hydraulic jack, Z font elevating system, first flexible sighting rod, the flexible sighting rod of second, the flexible sighting rod of third, the flexible sighting rod of fourth, head rod, second connecting rod, fastening nut, first buzzer electrode, second buzzer electrode. The piston of the hydraulic jack is fastened with the Z-shaped lifting mechanism through screws. The telescopic standard pole consists of two hollow stainless steel pipes, the upper end of the stainless steel pipe at the bottom is provided with threads, and the telescopic standard pole is cylindrical in shape. The telescopic standard pole reaches the appointed length and is screwed and fixed by a fastening nut, and threads for fastening the telescopic standard pole are arranged inside the telescopic standard pole.
The first telescopic standard pole is welded with the hydraulic jack base together, is static in the device working process, and plays a role in positioning the bolt hole position of the cabinet body. The fourth telescopic pole is welded with the Z-shaped lifting mechanism and moves up and down along with the Z-shaped lifting mechanism during working. The first connecting rod connects the first telescopic standard rod and the second telescopic standard rod, and an L-shaped groove is arranged above the first connecting rod. The lower part of the first connecting rod is sleeved with the first telescopic standard rod through an adhesion process, and the upper L-shaped groove is connected with the second telescopic standard rod through rivets. The second connecting rod is used for connecting the third telescopic marker post and the fourth telescopic marker post, and an L-shaped groove is formed above the second connecting rod. The lower part of the second connecting rod is sleeved with the fourth telescopic standard rod through an adhesion process, and the upper L-shaped groove is connected with the third telescopic standard rod through rivets. The first buzzer electrode is fixed on the fourth telescopic standard rod through a screw, and the second buzzer electrode is fixed on the first connecting rod through a screw. The buzzer electrodes are made of plastic, the first buzzer electrode is provided with a protruding copper contact, the second buzzer electrode is provided with a groove, and an annular copper sheet is fixed in the groove.
Based on the device, the control method is as follows:
f when hydraulic jack is lifted x1 、F x2 、F x3 Zero, F y1 ＝F y2 ＝F y3 And (3) calculating to obtain the jacking force F of the hydraulic jack by the formula (1).
Figure BDA0003377418270000021
Wherein F is x1 、F x2 、F x3 、F y1 、F y2 、F y3 The component force is in the Y directions of the X axis and the Y axis of the transverse axis of the three hinges of the cabinet door, G is the gravity of the cabinet door, L 1 Is the width of the cabinet door.
When the hydraulic jack is lifted, a vertical upward jacking force F is applied to the right lower corner of the cabinet door, the force F in the X-axis direction of the hinge is reduced along with the increase of the jacking force F, and when the jacking force reaches a certain value, the force F in the X-axis direction of the cabinet door is 0, and at the moment, the cabinet door can be lifted by the jack, and the system is in a static balance state.
According to the calculated jacking force of the hydraulic jack, the hydraulic jack with the driving force not smaller than the jacking force is selected, and the Z-shaped lifting mechanism is designed and processed.
A first telescopic marker post is additionally arranged on the jack 1. When the lifting jack is used, the lifting jack is placed at an easy-to-operate position, the Z-shaped lifting mechanism is tightly combined with the bottom of the cabinet door, the first telescopic standard pole is extended, the second telescopic standard pole is pulled open, the second telescopic standard pole is enabled to be flush with the center of the bolt hole of the cabinet body, the fastening nut is screwed to fasten the first telescopic standard pole and the second telescopic standard pole, the fourth telescopic standard pole is extended, the third telescopic standard pole is straightened, the third telescopic standard pole is flush with the center of the bolt hole of the cabinet door, and the fastening nut is screwed to fasten the third telescopic standard pole and the fourth telescopic standard pole. The operating mechanism of the jack is operated, at the moment, the Z-shaped lifting mechanism and the fourth telescopic marker post synchronously move upwards, when the third telescopic marker post and the second telescopic marker post are positioned at the same height, the alarm loop is conducted, a person is informed of no need of continuous operation, the operating mechanism of the jack is limited, and the switch cabinet is damaged by continuous operation.
The automatic height adjustment calibration control method for the cabinet door of the transformer substation switch cabinet comprises the following specific steps:
step one, calculating the weight of a cabinet door and measuring the width L of the cabinet door 1 And (3) calculating to obtain the jacking force of the hydraulic jack by the formula (1).
And step two, selecting the hydraulic jack with the driving force not smaller than the jacking force according to the calculated jacking force of the hydraulic jack.
And thirdly, designing and processing the Z-shaped lifting mechanism according to the calculated jack supporting force of the hydraulic jack.
And step four, the piston of the hydraulic jack is fastened with the Z-shaped lifting mechanism through a screw, and the Z-shaped lifting mechanism is tightly attached to the cabinet door.
And fifthly, extending the first telescopic standard rod, pulling the second telescopic standard rod along the L-shaped groove of the first connecting rod, pointing to the cabinet body bolt hole by 90 degrees with the first telescopic standard rod, and being flush with the cabinet body bolt hole, and fastening the telescopic rod A and the telescopic rod B through fastening nuts respectively.
Step six, extending a fourth telescopic marker post, pulling the third telescopic marker post along the L-shaped groove of the second connecting rod to be 90 degrees to the cabinet door bolt hole with the fourth telescopic marker post, enabling the third telescopic marker post to be flush with the center of the cabinet door bolt, and fastening the third telescopic marker post and the fourth telescopic marker post.
And step seven, operating an operating mechanism of the hydraulic jack, and synchronously lifting the Z-shaped lifting mechanism and the fourth telescopic standard pole at the moment.
Step eight, the fixed first buzzer electrode on the fourth flexible sighting rod continuously rises, and when the second flexible sighting rod and the third flexible sighting rod reach the same height, the fixed second buzzer electrode of second connecting rod contacts with the first buzzer electrode, and the alarm loop switches on, informs personnel to need not to continue to operate to limit the operating mechanism of the jack, and severe prevention continues to operate and damage the switch cabinet and the device.
And step nine, fastening the cabinet door by workers through bolts.
And step ten, after the jacking operation is finished, the second telescopic marker post and the third telescopic marker post are outwards pulled and folded along the L-shaped groove of the connecting rod and are parallel to the first telescopic marker post and the fourth telescopic marker post, so that the device is convenient to store.
The beneficial effects of the invention are as follows:
1. compared with the installation process of multiple persons of the transformer substation switch cabinet at the present stage, only two workers are needed, so that the working time can be greatly shortened, and the site construction efficiency is improved; 2. the labor intensity of workers is greatly reduced, and certain potential safety hazards are reduced; 3. the structure is simple, the implementation is easy, the cost is low, and the cost performance is high; 4. can be widely applied to other related industries.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of an automatic height-adjusting calibration device for a cabinet door of a transformer substation switch cabinet;
FIG. 2 is a force distribution diagram of a door of a switchgear cabinet of the present invention;
FIG. 3 is a Z-elevator pattern of the present invention;
fig. 4 is a graph showing the horizontal force exerted by the hydraulic jack and the hinge according to the present invention.
In the drawing the view of the figure,
1. the telescopic device comprises a first telescopic standard rod, a second telescopic standard rod, a third telescopic standard rod, a fourth telescopic standard rod, a first connecting rod, a second connecting rod, a first buzzer electrode, a second buzzer electrode, a Z-shaped lifting mechanism, a locking nut, a hydraulic jack and a locking nut, wherein the first telescopic standard rod, the second telescopic standard rod, the third telescopic standard rod, the fourth telescopic standard rod, the first connecting rod, the second connecting rod, the first buzzer electrode, the second buzzer electrode, the Z-shaped lifting mechanism and the hydraulic jack are arranged in sequence, and the Z-shaped lifting mechanism is arranged in sequence.
Detailed description of the preferred embodiments
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. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that: like reference numerals and letters denote 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.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "middle", "upper", "lower", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Fig. 1-4 are specific embodiments of the present invention, which are an automatic height-adjusting calibration device for a cabinet door of a transformer substation switch cabinet, wherein a first telescopic standard rod 1 is vertically welded on a base of a hydraulic jack 11, and the top end of the first telescopic standard rod 1 is horizontally connected with a second telescopic standard rod 2 through a first connecting rod 5; the top of the piston of the hydraulic jack 11 is fixedly connected with a Z-shaped lifting mechanism 9,Z through a screw, a fourth telescopic standard rod 4 is vertically welded above the Z-shaped lifting mechanism 9, and the top end of the fourth telescopic standard rod 4 is horizontally connected with a third telescopic standard rod 3 through a second connecting rod 6; a first buzzer electrode 7 is fixed on the first connecting rod 5; a second buzzer electrode 8 is fixed on the second connecting rod 6. The first telescopic standard 1, the second telescopic standard 2, the third telescopic standard 3 and the fourth telescopic standard 4 are all composed of two hollow stainless steel pipes, the bottom stainless steel pipes are provided with threads, and the middle is screwed and fixed by a locking nut 10. An L-shaped groove is formed above the first connecting rod 5, the first telescopic marker post 1 is sleeved under the first connecting rod 5 through an adhesion process, and the L-shaped groove above the first connecting rod is fixedly connected with the second telescopic marker post 2 through a rivet; an L-shaped groove is formed in the upper portion of the second connecting rod 6, the fourth telescopic marker post 4 is sleeved on the lower portion of the second connecting rod 6 through an adhesion process, and the upper L-shaped groove is fixedly connected with the third telescopic marker post 3 through rivets. The first buzzer electrode 7 is fixedly connected to the first connecting rod 5 through a screw, and the first buzzer electrode 7 is provided with a protruding copper contact; the second buzzer electrode 8 is fixedly connected to the second connecting rod 6 through a screw, the second buzzer electrode 8 is provided with a groove, an annular copper sheet is fixed in the groove, and other parts of the buzzer electrode are made of plastic materials. The Z-shaped lifting mechanism 9 is of a Z-shaped structure with two right angles, and is made of 45 # steel.
Based on the device, the control method is as follows:
force analysis of cabinet door of switch cabinet is shown in figure 2, F is when hydraulic jack is lifted x1 、F x2 、F x3 Zero, F y1 ＝F y2 ＝F y3 And (3) calculating to obtain the jacking force F of the hydraulic jack by the formula (1).
Figure BDA0003377418270000051
Wherein F is x1 、F x2 、F x3 、F y1 、F y2 、F y3 The component force is in the Y directions of the X axis and the Y axis of the transverse axis of the three hinges of the cabinet door, G is the gravity of the cabinet door, L 1 Is the width of the cabinet door.
When the hydraulic jack is lifted, a vertical upward jacking force F is applied to the right lower corner of the cabinet door, the force F in the X-axis direction of the hinge is reduced along with the increase of the jacking force F, and when the jacking force reaches a certain value, the force F in the X-axis direction of the cabinet door is 0, and at the moment, the cabinet door can be lifted by the jack, and the system is in a static balance state.
According to the calculated jacking force of the hydraulic jack, the hydraulic jack with the driving force not smaller than the jacking force is selected, and the Z-shaped lifting mechanism is designed and processed.
A first telescopic marker post is additionally arranged on the jack 1. When the lifting jack is used, the lifting jack is placed at an easy-to-operate position, the Z-shaped lifting mechanism is tightly combined with the bottom of the cabinet door, the first telescopic standard pole is extended, the second telescopic standard pole is pulled open, the second telescopic standard pole is enabled to be flush with the center of the bolt hole of the cabinet body, the fastening nut is screwed to fasten the first telescopic standard pole and the second telescopic standard pole, the fourth telescopic standard pole is extended, the third telescopic standard pole is straightened, the third telescopic standard pole is flush with the center of the bolt hole of the cabinet door, and the fastening nut is screwed to fasten the third telescopic standard pole and the fourth telescopic standard pole. The operating mechanism of the jack is operated, at the moment, the Z-shaped lifting mechanism and the fourth telescopic marker post synchronously move upwards, when the third telescopic marker post and the second telescopic marker post are positioned at the same height, the alarm loop is conducted, a person is informed of no need of continuous operation, the operating mechanism of the jack is limited, and the switch cabinet is damaged by continuous operation.
The automatic height adjustment calibration control method for the cabinet door of the transformer substation switch cabinet comprises the following specific steps:
step one, calculating the weight of a cabinet door and measuring the width L of the cabinet door 1 And (3) calculating to obtain the jacking force of the hydraulic jack by the formula (1).
And step two, selecting the hydraulic jack with the driving force not smaller than the jacking force according to the calculated jacking force of the hydraulic jack.
And thirdly, designing and processing the Z-shaped lifting mechanism according to the calculated jack supporting force of the hydraulic jack.
And step four, the piston of the hydraulic jack is fastened with the Z-shaped lifting mechanism through a screw, and the Z-shaped lifting mechanism is tightly attached to the cabinet door.
And fifthly, extending the first telescopic standard rod, pulling the second telescopic standard rod along the L-shaped groove of the first connecting rod, pointing to the cabinet body bolt hole by 90 degrees with the first telescopic standard rod, and being flush with the cabinet body bolt hole, and fastening the telescopic rod A and the telescopic rod B through fastening nuts respectively.
Step six, extending a fourth telescopic marker post, pulling the third telescopic marker post along the L-shaped groove of the second connecting rod to be 90 degrees to the cabinet door bolt hole with the fourth telescopic marker post, enabling the third telescopic marker post to be flush with the center of the cabinet door bolt, and fastening the third telescopic marker post and the fourth telescopic marker post.
And step seven, operating an operating mechanism of the hydraulic jack, and synchronously lifting the Z-shaped lifting mechanism and the fourth telescopic standard pole at the moment.
Step eight, the fixed first buzzer electrode on the fourth flexible sighting rod continuously rises, and when the second flexible sighting rod and the third flexible sighting rod reach the same height, the fixed second buzzer electrode of second connecting rod contacts with the first buzzer electrode, and the alarm loop switches on, informs personnel to need not to continue to operate to limit the operating mechanism of the jack, and severe prevention continues to operate and damage the switch cabinet and the device.
And step nine, fastening the cabinet door by workers through bolts.
And step ten, after the jacking operation is finished, the second telescopic marker post and the third telescopic marker post are outwards pulled and folded along the L-shaped groove of the connecting rod and are parallel to the first telescopic marker post and the fourth telescopic marker post, so that the device is convenient to store.
As shown in fig. 1, the present embodiment selects KYN (armoured ac metal-enclosed switchgear) series with standard dimensions of 1200mm wide x deep x high of 1200mm, cabinet door dimensions of 1200mm wide x thick x high of 1200mm 50mm 2500mm, and cabinet door made of cold-rolled steel plate with density of 7.9g/cm 3 The cabinet door weight is 1185kg. L (L) 1 ＝1200mm,L 2 ＝L 3 ＝1200mm。
The control method comprises the steps of,
(1) Calculating the weight of the cabinet door and measuring the width L of the cabinet door 1 The jack supporting force F of the hydraulic jack is 5806.5N, which is 1200mm and calculated by the formula (1);
(2) Selecting a hydraulic jack with driving force not less than the jacking force according to the calculated jacking force of the hydraulic jack;
(3) Designing and processing a Z-shaped lifting mechanism according to the calculated jack supporting force of the hydraulic jack, as shown in figure 3;
(4) And 4-10, completing automatic height adjustment and calibration of the cabinet door of the power station switch cabinet.
When the hydraulic jack is lifted, as shown in fig. 4, a vertical upward jacking force F is applied to the right lower corner of the cabinet door, the force F in the X-axis direction of the hinge is reduced along with the increase of the jacking force F, and when the jacking force reaches 5806.5N, the force F in the X-axis direction of the cabinet door is 0, and at the moment, the cabinet door can be lifted by the jack, and the system is in a static balance state.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims (2)

1. The control method of the automatic heightening and calibrating device for the cabinet door of the transformer substation switch cabinet is characterized by comprising the following steps of:
s1, calculating the weight of a cabinet door and measuring the width L of the cabinet door 1 Calculating to obtain the jacking force of the hydraulic jack (11);
s2, according to the calculated jacking force of the hydraulic jack (11), selecting the hydraulic jack (11) with the driving force not smaller than the jacking force;
s3, designing and processing a Z-shaped lifting mechanism according to the calculated jacking force of the hydraulic jack (11);
s4, the piston of the hydraulic jack (11) is fastened with the Z-shaped lifting mechanism (9) through a screw, and the Z-shaped lifting mechanism (9) is tightly attached to the cabinet door;
s5, extending the first telescopic marker post (1), pulling the second telescopic marker post (2) along the L-shaped groove of the first connecting rod (5), pointing to the bolt hole of the cabinet body at 90 degrees with the first telescopic marker post (1), and being level with the bolt hole of the cabinet body, and fastening the rod bodies of the two telescopic marker posts through fastening nuts respectively;
s6, extending the fourth telescopic standard pole (4), pulling the third telescopic standard pole (3) along the L-shaped groove of the second connecting rod (6) to be 90 degrees with the fourth telescopic standard pole (4) to point to a cabinet door bolt hole, enabling the third telescopic standard pole (3) to be parallel and level with the center of the cabinet door bolt, and fastening the third telescopic standard pole (3) and the fourth telescopic standard pole (4);
s7, operating an operating mechanism of the hydraulic jack (11), and synchronously lifting the Z-shaped lifting mechanism (9) and the fourth telescopic standard rod (4) at the moment;
s8, a first buzzer electrode (7) fixed on the fourth telescopic marker post (4) continuously ascends, and when the second telescopic marker post (2) and the third telescopic marker post (3) reach the same height, a second buzzer electrode (8) fixed on the second connecting rod (6) is in contact with the first buzzer electrode (7), an alarm loop is conducted, a person is informed of no need of continuous operation, an operating mechanism of the hydraulic jack (11) is limited, and the damage to the switch cabinet and the device caused by continuous operation is strictly prevented;
s9, a worker uses bolts to fasten the cabinet door;
s10, after the jacking operation is finished, the second telescopic standard pole (2) and the third telescopic standard pole (3) are outwards pulled and folded along the L-shaped groove of the connecting rod and are parallel to the first telescopic standard pole (1) and the fourth telescopic standard pole (4);
the base of the hydraulic jack (11) is vertically welded with a first telescopic standard rod (1), and the top end of the first telescopic standard rod (1) is horizontally connected with a second telescopic standard rod (2) through a first connecting rod (5);
the top of a piston of the hydraulic jack (11) is fixedly connected with a Z-shaped lifting mechanism (9) through a screw, a fourth telescopic standard pole (4) is vertically welded above the Z-shaped lifting mechanism (9), and the top end of the fourth telescopic standard pole (4) is horizontally connected with a third telescopic standard pole (3) through a second connecting rod (6);
a first buzzer electrode (7) is fixed on the first connecting rod (5); a second buzzer electrode (8) is fixed on the second connecting rod (6);
the first telescopic standard pole (1), the second telescopic standard pole (2), the third telescopic standard pole (3) and the fourth telescopic standard pole (4) are composed of two hollow stainless steel pipes, the bottom stainless steel pipes are provided with threads, and the middle parts of the two hollow stainless steel pipes are screwed and fixed by lock nuts (10);
an L-shaped groove is formed above the first connecting rod (5), the first telescopic marker post (1) is sleeved under the first connecting rod (5) through an adhesion process, and the upper L-shaped groove is fixedly connected with the second telescopic marker post (2) through a rivet;
an L-shaped groove is formed above the second connecting rod (6), the fourth telescopic standard rod (4) is sleeved under the second connecting rod (6) through an adhesion process, and the upper L-shaped groove is fixedly connected with the third telescopic standard rod (3) through a rivet;
the first buzzer electrode (7) is fixedly connected to the first connecting rod (5) through a screw, and the first buzzer electrode (7) is provided with a protruding copper contact;
the second buzzer electrode (8) is fixedly connected to the second connecting rod (6) through a screw, the second buzzer electrode (8) is provided with a groove, an annular copper sheet is fixed in the groove, and other parts of the buzzer electrode are made of plastic materials;
the Z-shaped lifting mechanism (9) is of a Z-shaped structure with two right angles and is made of No. 45 steel.
2. The control method of the automatic height adjustment calibration device for the cabinet door of the transformer substation switch cabinet according to claim 1, wherein the method comprises the following steps:
the step S1 is specifically that,
f when hydraulic jack is lifted x1 、F x2 、F x3 Zero, F y1 ＝F y2 ＝F y3 The hydraulic jack supporting force F is calculated by the formula, wherein the formula is that
Figure FDA0004180213240000021
Wherein F is x1 、F x2 、F x3 、F y1 、F y2 、F y3 The component force is in the Y directions of the X axis and the Y axis of the transverse axis of the three hinges of the cabinet door, G is the gravity of the cabinet door, L 1 Is the width of the cabinet door.
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