CN107453263A - Transformer breather silica gel changes mobile platform - Google Patents

Abstract

The invention discloses a silica gel replacement mobile platform for a transformer respirator, which comprises a base, a universal roller is installed on the lower part of the base, a lifting device is arranged on the base, a moving guide rail, a scissor mechanism and a replacement platform are arranged on the upper end of the lifting device, and the moving guide rail is 2, the replacement platform includes a tool placement board, a support board and a fixing board. The tool placement board, the support board and the fixing board are connected by 4 vertical rods. The bottom of the tool placement board is equipped with a chute that matches the 2 moving guide rails. A slide bar is fixed between the ends of the two moving guide rails. One end of the scissor mechanism is slidably connected to the slide bar, and the other end is fixedly connected to the tool placement plate. There is a U-shaped notch I on one side of the support plate, and a U-shaped notch on the side of the fixed plate. There is a U-shaped notch II. The replacement of the respirator of the present invention does not require manual lifting, and a single person can complete the replacement of the respirator silica gel; the setting of the tool placement plate avoids scattered and chaotic parts, makes it easy to take and use, and ensures that the equipment area is clean and free from pollution.

Description

Transformer Breather Silicone Replacement Mobile Platform

technical field

The invention belongs to the technical field of electric equipment, and in particular relates to a mobile platform for replacing silica gel of a transformer respirator.

Background technique

The transformer is of great significance to the power grid, and the breather is one of the important components of the voltage transformation. The respirator, also known as the moisture absorber, is an auxiliary safety protection device of the transformer. The upper part of the respirator is connected with the respirator connecting pipe, the middle part is equipped with a glass cover containing silica gel, and the lower part is connected with an oil cup for containing transformer oil. With sheet metal and bolted connections. The silica gel inside the respirator acts as a desiccant to absorb moisture and impurities in the air to maintain the quality of the oil. It is a necessary barrier for the transformer to exchange gas with the outside world. Its role is very important, so the operation of the respirator must be carefully maintained. The silica gel in the respirator will turn from blue to red after absorbing water. According to the on-site operating regulations, when 2/3 of the silica gel turns red, it is necessary to replace the silica gel of the respirator to ensure the ability to filter moisture and impurities in the air. Avoid transformer damp affecting power supply, resulting in unnecessary economic losses.

The replacement of the respirator silica gel mainly lies in the disassembly and installation of the respirator. During the disassembly and assembly, the loosening of the bolts makes the respirator lose its reliable fixation, so it often requires manpower to support the respirator to fix it, and the respirator is high from the ground and heavy. It will increase the work intensity of the replacement personnel and greatly increase the work burden. At least 3 people are required to cooperate with the disassembly and assembly, resulting in time-consuming and laborious disassembly and assembly of the respirator; and the disassembly and assembly of the respirator takes too long. It is possible to enter the inside of the transformer, which poses a threat to the safe operation of the transformer; in addition, during the disassembly and assembly of the respirator, there is no professional collection measure on site, which makes the parts scattered and chaotic, which increases the difficulty of assembly by the staff, and is prone to accidents. Oily, contaminated equipment areas.

The patent publication number is CN104993405A, which discloses a universal bracket for substation respirator replacement with silica gel, which includes a lower support body composed of four legs, each leg is connected with a bolt, the lower end of the bolt is connected with a gasket, and a reinforcing rib is connected between the legs. A tray is connected to the top of the leg, and a clamp device with adjustable diameter is provided on the tray. The clamp device is composed of two completely symmetrical semicircular steel sheets, and the two semicircular steel sheets pass through the connecting piece, bolts and Nut connection, two semicircular steel sheets are provided with a fastening plate, and the semicircular steel sheet is connected to the tray through the fastening plate. When the respirator is replaced, it needs to be supported by manpower to fix it, and the respirator is disassembled and removed. Then it is placed in the clamp device to fix it, thus increasing the labor intensity of the personnel, the disassembly and assembly of the respirator is inconvenient, time-consuming and laborious, and there is no place for the disassembly tools and the disassembled parts to be stored, which is easy The parts are scattered and chaotic, inconvenient to take, easy to produce oil pollution, and pollute the equipment area.

The patent publication number is CN104577834A, which discloses a transformer respirator silicone replacement tool, including a fixed clamp rod, a connecting rod detachably connected to both ends of the fixed clamp rod, and a tray detachably connected to the connecting rod. The clamping rod includes a fixed clip and a cross bar extending from the fixed clip to both ends. The fixed clip is used to clamp the connecting pipe of the transformer respirator. The connecting rod is vertically arranged around the respirator to connect the fixed clip rod. And a tray, the tray is installed at the bottom of the respirator to support the respirator. Because the respirator has a certain height from the ground, and the tray in this invention is not supported by a platform with a certain height, it is still necessary to use manpower to support the respirator to fix it when the respirator is replaced in this invention, and the disassembly and assembly of the respirator is inconvenient. Disassembly and assembly is time-consuming and laborious, and there is no place to store the tools used for disassembly and assembly, as well as the disassembled parts, which may easily cause the parts to be scattered and chaotic, inconvenient to access, prone to oil pollution, and pollute the equipment area.

Contents of the invention

In view of this, the object of the present invention is to address the deficiencies in the prior art, and provide a mobile platform for replacing the silica gel of the transformer respirator, so as to solve the problems of time-consuming and labor-intensive replacement of the silica gel of the respirator, and scattered and chaotic parts.

In order to achieve the above purpose, the present invention adopts the following technical solutions: a transformer respirator silica gel replacement mobile platform, including a base, universal rollers are respectively installed at the four corners of the lower part of the base, a lifting device is provided on the base, and a moving guide rail is provided at the upper end of the lifting device , scissors mechanism and replacement platform, there are 2 moving guide rails, and the replacement platform includes a tool placement plate, a support plate and a fixed plate arranged in sequence from bottom to top, and 4 vertical rods are passed between the tool placement plate, support plate and fixed plate Connection, the bottom of the tool placement plate is equipped with a chute that matches the two moving guide rails, and a slide bar is fixed between the ends of the two moving guide rails. One end of the scissor mechanism is slidably connected to the slide bar, and the other end is fixedly connected to the tool placement plate. On one side of the support plate, there is a U-shaped notch I for accommodating the oil cup at the bottom of the respirator, and on the side of the fixing plate, there is a U-shaped notch II for accommodating the connecting pipe of the respirator.

The lifting device includes a first scissor lifting mechanism and a second scissor lifting mechanism, the first scissor lifting mechanism and the second scissor lifting mechanism are connected by a plurality of hinge shafts arranged in parallel, and the first scissor lifting mechanism The upper ends of the two moving guide rails are respectively hinged, the lower ends of the first scissor lifting mechanism are respectively hinged on the sliding seat, the sliding seat is set on the first lead screw, the first lead screw is a double-rotation lead screw, and the two sliding The seats are respectively arranged on the screw sections with different rotation directions of the first screw; the upper ends of the second scissor lifting mechanism are respectively hinged on the two moving guide rails, and the lower ends of the second scissor lifting mechanism are respectively hinged on the sliding seat, sliding The seat is arranged on the second lead screw, the second lead screw is a double-rotation lead screw, and the two sliding seats are respectively arranged on the lead screw sections with different rotation directions of the second lead screw, the front ends of the first lead screw and the second lead screw Pulleys are respectively provided, and the two pulleys are connected by a belt, and one of the pulleys is connected with the output shaft of the motor.

Both the first lead screw and the second lead screw are fixed on the base through the support base.

The base is provided with a base guide rail, and the sliding seat is slidably arranged on the base guide rail.

The four corners of the lower part of the base are respectively provided with lifting rods. The rod body of the lifting rod passes through the base and slides up and down along the base. The top of the lifting rod is connected with a rotating handle, and the lifting rod is fixed on the base through a limit pin. The backing plate is sleeved with a spring on the lifting rod, and the two ends of the spring abut against the bottom of the base and the top of the supporting backing plate respectively.

A horizontal through hole I is provided on the side of the opening of the U-shaped notch I on the support plate, and a locking pin I is inserted into the horizontal through hole I.

A horizontal perforation II is provided on the side of the opening of the U-shaped notch II on the fixing plate, and a locking pin II is inserted into the horizontal perforation II.

Surrounding boards are arranged around the tool placement board.

A handle is provided on one side of the base.

The beneficial effects of the present invention are:

(1) The four corners of the lower part of the base of the present invention are respectively equipped with universal rollers, which can realize convenient movement and save time and effort; The device can realize the lifting of the replacement platform, and the horizontal movement of the replacement platform can be realized by moving the guide rail. The replacement platform includes a support plate and a fixed plate. One side of the support plate is provided with a U-shaped notch for accommodating the oil cup at the bottom of the respirator. There is a U-shaped notch II on the side for accommodating the connecting pipe of the respirator. Since the replacement platform can be lifted up and down and moved horizontally, the oil cup is well embedded in the U-shaped notch I on the support plate, and the connecting pipe of the respirator is well embedded. To the U-shaped notch II on the fixing plate, so that the support plate and the fixing plate can well support and fix the respirator. The replacement of the respirator does not require manual lifting. One person can complete the replacement of the respirator silicone, and the respirator is easy to disassemble. Quick, easy and fast replacement of silicone;

(2) The tool placement plate is used to place disassembly tools and disassembled parts to avoid scattered and chaotic parts and make them easy to access, thus improving the disassembly efficiency of the respirator and ensuring the cleanliness of the equipment area free from pollution;

(3) The upper end of the lifting device is equipped with a scissor mechanism, one end of the scissor mechanism is slidably connected to the slide bar, and the other end is fixedly connected to the tool placement plate of the replacement platform. When the replacement platform moves along the guide rail, the scissor mechanism follows the The telescopic and scissor mechanism can limit the replacement platform and prevent the replacement platform from sliding out of the moving guide rail.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic structural view of the mobile clamping device.

Fig. 3 is a schematic structural view of the elastic support device.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

Example 1

As shown in Figure 1, a transformer respirator silica gel replacement mobile platform includes a base 22, universal rollers 12 are respectively installed at the four corners of the lower part of the base 22, a lifting device is provided on the base 22, and a moving guide rail 5 is provided at the upper end of the lifting device. The scissors mechanism 6 and the replacement platform can realize the lifting of the replacement platform through the lifting device. The plate 4, the support plate 3 and the fixed plate 1 are connected by four vertical rods 2, and the bottom of the tool placement plate 4 is provided with a chute that cooperates with two moving guide rails 5, and the horizontal movement of the replacement platform can be realized through the moving guide rail 5. A slide bar 7 is fixed between the ends of the two moving guide rails 5. One end of the scissor mechanism 6 is slidably connected to the slide bar 7, and the other end is fixedly connected to the tool placement plate 4. One side of the support plate 3 is provided with a The U-shaped notch I28 of the oil cup at the bottom, and the U-shaped notch II31 for accommodating the respirator connecting pipe are provided on one side of the fixing plate 1 .

When replacing the respirator, move the mobile platform to the side of the respirator, use the lifting device to raise the moving guide rail 5, the scissor mechanism 6 and the replacement platform, so that the bottom of the replacement platform is equal to the bottom of the glass cover of the respirator, and then move it by hand Replace the platform so that the replacement platform moves along the two moving guide rails 5. During the movement of the replacement platform, the scissor mechanism 6 expands and contracts. The scissor mechanism 6 can limit the replacement platform, and the replacement platform moves to the The oil cup is embedded into the U-shaped notch I28 on the support plate 3, and the respirator connecting pipe is embedded into the U-shaped notch II31 on the fixed plate 1, so that the support plate 3 is in contact with the bottom of the respirator glass cover, thereby supporting the respirator. The function of the support, the fixed plate 1 is used to support and fix the respirator with the support plate 3, after the replacement platform is fixed, use tools to remove the oil cup in turn, remove the fixing bolts of the respirator connecting pipe and the glass cover, remove the glass cover, and replace Silica gel, clean the parts on the respirator, then install new silica gel and transformer oil, and tighten all the fasteners on the respirator as required to complete the replacement of the respirator's silica gel.

After the replacement of the silicone rubber of the respirator is completed, move the replacement platform again to remove the replacement platform from the respirator, that is, the oil cup is removed from the U-shaped notch Ⅰ28 on the support plate 3, and the respirator connecting pipe is removed from the U-shaped notch on the fixed plate 1. Move out from the notch II31, and then lower the replacement platform. The replacement of the respirator does not require manual lifting, and the replacement of the silica gel can be completed by a single person. The disassembly and assembly of the respirator is convenient and fast, and the replacement of the silica gel is convenient and fast.

Lifting device comprises the first scissors lifting mechanism 8 and the second scissors lifting mechanism 25, is connected by a plurality of hinge shafts 26 that are arranged in parallel between the first scissors lifting mechanism 8 and the second scissors lifting mechanism 25, can improve lifting For the stability of the device, the upper ends of the first scissor lifting mechanism 8 are respectively hinged on the two moving guide rails 5, and the lower ends of the first scissor lifting mechanism 8 are respectively hinged on the sliding seat 10, and the sliding seat 10 is arranged on the first lead screw 13, the first lead screw 13 is a double-rotation lead screw, and the two sliding seats 10 are respectively arranged on different lead screw sections of the first lead screw 13; On the first moving guide rail 5, the lower ends of the second scissor lifting mechanism 25 are respectively hinged on the sliding seat 10, and the sliding seat 10 is arranged on the second lead screw 24, and the second lead screw 24 is a double-rotation lead screw. The seats 10 are respectively arranged on the screw sections of the second lead screw 24 in different directions of rotation, the first lead screw 13 and the second lead screw 24 are fixed on the base 22 through the support seat 9, and the base 22 is provided with a base guide rail 23, The sliding seat 10 is slidably arranged on the base guide rail 23, and the front ends of the first leading screw 13 and the second leading screw 24 are respectively provided with pulleys 19, and the two pulleys 19 are connected by a belt 20, and one of the pulleys 19 is connected to the motor 21 output shaft connection.

Drive two belt pulleys 19 to rotate by motor 21, control the positive and negative rotation of first lead screw 13 and second lead screw 24 simultaneously by pulley 19, make the two slides on first lead screw 13 and second lead screw 24 The seat 10 moves in the same direction or in the opposite direction, so that the first scissor lifting mechanism 8 and the second scissor lifting mechanism 25 rise or fall, so as to realize the lifting of the whole replacement platform. The scissors mechanism has a simple structure, and when stretched, the volume is small, which can save space and resources. The screw mechanism cooperates with the scissors mechanism, and the telescopic action of the scissors mechanism can be precisely controlled through the screw mechanism, which facilitates the disassembly of the respirator.

The tool placement plate 4 is used to place the tools for disassembly and the disassembled parts, so as to prevent the parts from being scattered and chaotic, so that it is convenient to take and use, thereby improving the disassembly efficiency of the respirator, and also ensuring the cleaning of the equipment area. pollute.

The support plate 3 is provided with a horizontal perforation I on one side of the opening of the U-shaped notch I28, and a locking pin I29 is inserted into the horizontal perforation I to further strengthen the support plate 3.

The fixing plate 1 is provided with a horizontal perforation II on one side of the opening of the U-shaped notch II 31 , and a locking pin II 30 is inserted into the horizontal perforation II to further strengthen the fixing plate 1 .

The tool placement plate 4 is provided with a coaming plate 27 around it to prevent the tools and parts in the tool placement plate 4 from rolling off.

One side of the base 22 is provided with a handle, which is convenient for moving the whole mobile platform.

Example 2

It differs from Embodiment 1 in that: as shown in Figure 1, four corners of the lower part of the base 22 are respectively provided with elevating rods 15, the rod body of the elevating rod 15 passes through the base 22 and slides up and down along the base 22, and the top of the elevating rod 15 is connected with a rotating The handle 14 and the elevating rod 15 are fixed on the base 22 through the limit pin 18, the bottom of the elevating rod 15 is connected with a support plate 17, the elevating rod 15 is sleeved with a spring 16, and the two ends of the spring 16 respectively abut against the bottom of the base 22 And support backing plate 17 upper ends.

When the mobile platform moves to the position, pull out the limit pin 18, under the effect of the spring 16, the support backing plate 17 is automatically pressed against the ground, so that the mobile platform is supported stably on the ground, ensuring the smooth progress of the respirator silica gel replacement operation; When needing to move after changing, pull up the elevating rod 15 by the rotating handle 14, and fix it with the stop pin 18, and release the brake to the universal roller 12, so that the mobile platform can be moved smoothly.

Example 3

It differs from Embodiment 1 in that: as shown in Figure 2, two mobile clamping devices are provided on the upper surface of the fixed plate 1, and the mobile clamping devices include a clamping block 32, a telescopic rod 35 and a telescopic rod seat 34, two The telescopic rod seat 34 is fixedly arranged on both sides of the U-shaped notch II 31 on the fixed plate 1, the clamping block 32 is fixed on one end of the telescopic rod 35, and the two clamping blocks 32 are arranged correspondingly, and the corresponding surfaces of the two clamping blocks 32 are round On the curved surface, the other end of the telescopic rod 35 passes through the telescopic rod seat 34 and can slide horizontally on the telescopic rod seat 34. The end of the telescopic rod 35 passing through the telescopic rod seat 34 is provided with a handle 36, and the telescopic rod 35 is sleeved with a The spring 33 and the two ends of the spring 33 abut against the clamping block 32 and the telescopic rod seat 34 respectively.

The clamping port formed by two clamping blocks 32 is used to clamp the connecting pipe of the respirator, and the two telescopic rods 35 are pulled outward by the handle 36, and the two clamping blocks 32 are all moved outward, and the two clamping blocks 32 constitute The clamping mouth of the respirator is opened, and the respirator connecting pipe is inserted into the clamping mouth by moving the replacement platform, the telescopic rod 35 is released, and the respirator connecting pipe is clamped by the elastic force of the spring 33, thereby fixing the respirator well. Facilitate the smooth disassembly and assembly of the respirator.

After the disassembly and assembly of the respirator is completed, the telescopic rod 35 is pulled outward through the handle 36 again, and the two clamping blocks 32 are all moved outward, and the clamping mouth formed by the two clamping blocks 32 is opened, and the platform is replaced by moving, so that the breathing The device connecting pipe is removed from the clamping mouth, and then the telescopic rod 35 is released.

Example 4

It differs from Embodiment 1 in that: as shown in Figure 3, the support plate 3 is slidably socketed on the four vertical bars 2, and four elastic support devices are arranged between the support plate 3 and the tool placement plate 4, and the elastic support devices Including a support rod 37, a rod cover 38 and a spring 40, the upper end of the support rod 37 is fixed on the lower surface of the support plate 3, the lower end of the rod cover 38 is fixed on the upper surface of the tool placement plate 4, the lower end of the support rod 37 is located inside the rod cover 38, and the support rod The lower end of the 37 is provided with an anti-off plate 39, which is used to prevent the support rod 37 from breaking away from the rod sleeve 38, and the anti-off plate 39 is fixedly connected with the inner bottom of the rod sleeve 38 by a spring 40.

The support plate 3 is slidingly sleeved on the four vertical rods 2, and the support rod 37 can move up and down in the rod sleeve 38, so that the support plate 3 can move up and down along the vertical rod 2, thereby being able to adapt to the fixing of respirators of different lengths. And through the effect of the spring 40, the support plate 3 is stably supported and accurately adjusted to avoid damage to the respirator.

Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the present invention without limitation, other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and spirit of the technical solution of the present invention All should be included in the scope of the claims of the present invention.

Claims (9)

1. Transformer respirator silica gel replacement mobile platform, which is characterized in that it includes a base, universal rollers are installed at the four corners of the lower part of the base, a lifting device is provided on the base, and a moving guide rail, a scissor mechanism and a replacement platform are provided on the upper end of the lifting device. There are 2 moving guide rails, and the replacement platform includes a tool placement plate, a support plate and a fixed plate arranged sequentially from bottom to top. The tool placement plate, support plate and fixed plate are connected by 4 vertical rods. The chute matched with the two moving guide rails, a slide bar is fixed between the ends of the two moving guide rails, one end of the scissors mechanism is slidably connected to the slide bar, the other end is fixedly connected to the tool placement plate, and one side of the support plate is provided with a On the U-shaped notch Ⅰ that accommodates the oil cup at the bottom of the respirator, there is a U-shaped notch Ⅱ for accommodating the connecting pipe of the respirator on one side of the fixing plate. 2. The transformer respirator silica gel replacement mobile platform according to claim 1, characterized in that: the lifting device includes a first scissor lifting mechanism and a second scissor lifting mechanism, the first scissor lifting mechanism and the second scissor lifting mechanism The fork lifting mechanisms are connected by a plurality of hinge shafts arranged in parallel. The upper ends of the first scissor lifting mechanism are respectively hinged on the two moving guide rails, and the lower ends of the first scissor lifting mechanism are respectively hinged on the sliding seats. The sliding seats are set On the first lead screw, the first lead screw is a double-rotation lead screw, and the two sliding seats are respectively arranged on the lead screw segments with different rotation directions of the first lead screw; the upper ends of the second scissor lifting mechanism are respectively hinged on the two On the first moving guide rail, the lower end of the second scissor lifting mechanism is respectively hinged on the sliding seat, and the sliding seat is arranged on the second lead screw, which is a double-rotation lead screw, and the two sliding seats are respectively arranged on the second screw. The leading screws rotate to different leading screw segments, and the front ends of the first leading screw and the second leading screw are respectively provided with pulleys, and the two pulleys are connected by a belt, and one of the pulleys is connected with the output shaft of the motor. 3. The mobile platform for replacing silica gel for transformer respirator according to claim 2, characterized in that: both the first lead screw and the second lead screw are fixed on the base through the support base. 4. The mobile platform for replacing silica gel for transformer respirator according to claim 2, characterized in that: the base is provided with a base guide rail, and the sliding seat is slidably arranged on the base guide rail. 5. The silica gel replacement mobile platform for transformer respirator according to claim 1, characterized in that: the four corners of the lower part of the base are respectively equipped with lifting rods, the rod body of the lifting rod passes through the base and slides up and down along the base, and the top of the lifting rod is connected There is a rotary handle, the lifting rod is fixed on the base through a limit pin, the bottom of the lifting rod is connected with a support pad, the lifting rod is sleeved with a spring, and the two ends of the spring are respectively abutted against the bottom of the base and the top of the support pad. 6. The mobile platform for replacing silica gel for transformer respirator according to claim 1, characterized in that: the side of the opening of the U-shaped notch I on the support plate is provided with a horizontal perforation I, and a locking connection is inserted into the horizontal perforation I Pin I. 7. The silica gel replacement mobile platform for transformer respirator according to claim 1, characterized in that: the fixed plate is located on the side of the opening of the U-shaped notch II, and there is a horizontal perforation II, and a locking connection is inserted into the horizontal perforation II Pin II. 8. The mobile platform for replacing silica gel for transformer respirator according to claim 1, characterized in that: surrounding boards are provided around the tool placement plate. 9. The mobile platform for replacing silica gel for transformer respirator according to claim 1, characterized in that: a handle is provided on one side of the base.