CN112803288B - 500kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method - Google Patents
500kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method Download PDFInfo
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Abstract
The invention discloses a 500kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method, and belongs to the technical field of transformer equipment overhauling and replacing. A supporting block, a supporting plate and a maintenance and replacement platform are arranged on the hydraulic trolley and pushed to the lower part of the hydraulic disc spring operating mechanism; the hydraulic trolley is lifted until a disc spring part of the hydraulic disc spring operating mechanism is contacted with a support module at the upper part of the maintenance and replacement platform; the telescopic module extends to stably support an energy storage part of the hydraulic disc spring operating mechanism; removing the fixing bolt, and rotationally removing the hydraulic disc spring operating mechanism; pushing the hydraulic trolley out of the maintenance station, fixing the hydraulic disc spring operating mechanism on the maintenance and replacement platform by using a packing belt, screwing a plurality of supporting legs on the maintenance and replacement platform downwards to be in contact with the supporting plate, and locking the maintenance and replacement platform; and the supporting plate, the maintenance and replacement platform and the hydraulic disc spring operating mechanism are integrally handed over and conveyed by using another hydraulic cart or forklift. The invention saves manpower and material resources and has high maintenance and replacement efficiency.
Description
Technical Field
The invention relates to the technical field of overhaul and replacement of power transformation equipment, in particular to a overhaul and replacement method for a hydraulic disc spring operating mechanism of a 500kV circuit breaker.
Background
Along with the development demand of china's electric power, the transformer substation is indispensable, hydraulic pressure dish spring circuit breaker equipment is by the wide application, when carrying out the operation maintenance to the numerous hydraulic pressure dish spring mechanism circuit breaker of quantity, it is the common defect in this type of mechanism that the mechanism frequently suppresses, seriously influences the normal operating of circuit breaker, when there is the trouble to change the mechanism in the mechanism inside, because of the mechanism is from great and operating space narrow and small, need artifical use the hand chain block to change, nevertheless this mode consumes very big manpower, material resources, the operating time is long and the security is low. Traditional 500kV circuit breaker hydraulic pressure dish spring operating mechanism changes process: firstly, manufacturing binding points of chain calabash; secondly, the stroke of the chain block is adjusted for multiple times to meet the hoisting transfer condition of the operating mechanism; then the operating mechanism is moved out of the supporting base in cooperation with the crane and the chain block.
The existing method for replacing the hydraulic disc spring operating mechanism of the 500kV circuit breaker has the defects that: the existing disassembling and assembling method needs to determine and manufacture binding points of the chain hoist according to the characteristics of field equipment, and the lengths of hanging strips needed for manufacturing the binding points are different because circuit breaker manufacturers equipped with hydraulic spring operating mechanisms on the field are different and the structural forms and the like are different. In the process of adjusting the stroke of the chain block, the two chain blocks need to be adjusted repeatedly, so that the overhauling efficiency is greatly influenced; crane, chain block hang out the in-process, need crane driver and on-the-spot commander, maintainer three sides coordination, information transfer time is long, uses chain block to change moreover, and this mode consumes very big manpower, changes inefficiency, in addition, uses special type vehicles such as crane, often needs the generating line to accompany to stop, consumes time for a specified time, and the number of operating personnel is many.
The patent document with publication number CN 111618551 a discloses a detaching tool for an energy storage module of a hydraulic disc spring mechanism, which comprises a cross bar, wherein two ends of the cross bar are fixedly connected with vertical bars, the vertical bars are provided with first suction discs, and the two first suction discs are oppositely arranged and used for absorbing two opposite side surfaces of the energy storage module; one or more first guide rods for mounting in the mounting holes of the energy storage module, so that the energy storage module can be removed along the first guide rods during disassembly. The invention has the characteristics of saving manpower, reducing the risk of falling of the energy storage module, improving the operation safety and improving the efficiency. However, it cannot solve the above technical problems.
The patent with the publication number of CN 209052301U discloses a special portable suspension device of hydraulic pressure dish spring mechanism, including hoist and hoist, the hoist includes two, the symmetry is installed in the framework of hydraulic pressure dish spring mechanism, the hoist includes mounting and the connecting piece that can cooperate to be connected, the mounting includes the stopper and sets up the screw rod on the stopper, the bottom fixedly connected with rings of connecting piece, a screw that matches with the screw rod is seted up at the top of connecting piece, set up the through-hole that equals with the screw aperture on the framework, the screw rod passes through-hole and screw threaded connection, the hoist is hung on rings. Through setting up detachable hoist, will hang some from the flexible coupling to become the rigid coupling, it takes place the displacement phenomenon to hang some emergence after having solved the hoist bearing, does not take place the displacement when making the mechanism repack, and the flange counterpoint of hydraulic pressure dish spring mechanism is accurate, has reduced the wearing and tearing to flange and bolt, has avoided the problem of whole mechanism change because of wearing and tearing lead to, the cost is reduced to the potential safety hazard has been reduced. However, this utility model discloses a still adopt the mode of hanging in midair to change hydraulic pressure dish spring mechanism, to the big 500kV circuit breaker hydraulic pressure dish spring operating mechanism of weight, still have hard, the inefficiency problem.
Disclosure of Invention
In view of the above, the invention provides a 500kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method which is convenient, rapid, time-saving, labor-saving and high in replacing efficiency aiming at the defects of the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a500 kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method comprises the following steps:
s1: after a supporting block, a supporting plate and a maintenance and replacement platform are sequentially placed on the hydraulic trolley, pushing the hydraulic trolley to the position below a hydraulic disc spring operating mechanism to be maintained and replaced;
s2: pressing a handle of the hydraulic trolley for multiple times to enable the height of the hydraulic trolley to rise until a disc spring part of the hydraulic disc spring operating mechanism is contacted with a support module at the upper part of the maintenance and replacement platform;
s3: starting a telescopic module at the upper part of the maintenance and replacement platform to stably support an energy storage part of the hydraulic disc spring operating mechanism;
s4: dismantling a fixing bolt for connecting the 500kV circuit breaker and the hydraulic disc spring operating mechanism, and rotatably dismantling the hydraulic disc spring operating mechanism through a 360-degree rolling module at the lower part of the overhaul and replacement platform;
s5: pushing the hydraulic trolley out of the maintenance station, fixing the hydraulic disc spring operating mechanism on the maintenance and replacement platform by using a packing belt, screwing a plurality of supporting legs on the maintenance and replacement platform downwards to be in contact with the supporting plate, and locking the maintenance and replacement platform;
s6: and the supporting plate, the maintenance and replacement platform and the hydraulic disc spring operating mechanism are integrally handed over and conveyed by using another hydraulic cart or forklift.
Furthermore, place two supporting shoes on the hydraulic pressure shallow, the backup pad is located two supporting shoes, overhauls to change the platform and is located the backup pad, and when handing-over was transported, another hydraulic pressure shallow or fork truck's front fork portion inserted and is located between two supporting shoes.
Further, overhaul and change the platform and include the platform body, two parallel arrangement's nylon cylinders are as supporting module on the platform body, the jack that sets up on the platform body is as flexible module, a plurality of bull's eye gyro wheels that platform body bottom surface equipartition set up roll the module as 360 degrees.
Furthermore, two fastening rings are arranged on two sides of the supporting module, the two fastening rings on different sides are fixedly connected through a packing belt, and a rope tightener is arranged on the packing belt.
Furthermore, screw holes are formed in four corners of the platform body, threads are arranged on the upper portions of the supporting legs, the upper ends of the supporting legs penetrate through the screw holes and are connected with a nut, and nylon cushion blocks are arranged at the lower ends of the supporting legs.
The hydraulic pressure dish spring operating mechanism weight of 500kV circuit breaker is great, it is very difficult to change during the maintenance, in order to guarantee the security and the feasibility of change in-process, prior art personnel think easily that the mode that adopts the crane to suspend in midair, a special portable hanging device of hydraulic pressure dish spring mechanism as that publication number CN 209052301U patent discloses, including hoist and hoist, the hoist includes two, the symmetry is installed in the framework of hydraulic pressure dish spring mechanism, the hoist includes mounting and the connecting piece that can cooperate the connection, the mounting includes the stopper and sets up the screw rod on the stopper, the bottom fixedly connected with rings of connecting piece, a screw that matches with the screw rod is seted up at the top of connecting piece, set up the through-hole that equals with the screw aperture in the framework, the screw rod passes through-hole and screw threaded connection, the hoist hangs on rings. Therefore, the maintenance and replacement method of the hydraulic disc spring operating mechanism by adopting the mutual matching of the hydraulic cart, the supporting plate and the maintenance and replacement platform is not easy to think for the skilled person.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a maintenance and replacement method of a hydraulic disc spring operating mechanism of a 500kV circuit breaker, which comprises the steps that firstly, a hydraulic cart pushes a maintenance and replacement platform to the position below the hydraulic disc spring operating mechanism to be maintained and replaced, a handle of the hydraulic cart is pressed for multiple times, so that the height of the hydraulic cart is raised until a disc spring part of the hydraulic disc spring operating mechanism is contacted with a support module at the upper part of the maintenance and replacement platform, then a telescopic module extends, and an energy storage part of the hydraulic disc spring operating mechanism is supported, so that the stability in the disassembly process is ensured; then, the fixing bolt for connecting the 500kV circuit breaker and the hydraulic disc spring operating mechanism is removed, and the hydraulic disc spring operating mechanism is pulled out along with the maintenance and replacement platform after the fixing bolt is removed, so that the maintenance and replacement platform is convenient, rapid, time-saving and labor-saving, does not need additional accompanying and stopping equipment, saves manpower, and is high in replacement efficiency; demolish and finish releasing the maintenance station with the hydraulic pressure shallow, use the packing area to fix hydraulic pressure dish spring operating mechanism on overhauing and changing the platform to will overhaul a plurality of supporting legs on changing the platform and screw up downwards, with the backup pad contact, the lock is died to overhaul and is changed the platform, avoids hydraulic pressure dish spring operating mechanism to slide at the transfer process and drops, guarantees to transport safety.
In addition, two supporting blocks are arranged on the hydraulic cart, when the supporting plate, the maintenance and replacement platform and the hydraulic disc spring operating mechanism are integrally handed over and conveyed by using another hydraulic cart or forklift, the front fork part of the other hydraulic cart or forklift can enter from between the two supporting blocks, the supporting plate, the maintenance and replacement platform and the hydraulic disc spring operating mechanism are integrally lifted, and the handing over is completed; in addition, the support modules are two nylon rollers which are arranged in parallel, the cylindrical disc spring part can be just fixed on the upper parts of the two nylon rollers, the stability is good, and the abrasion of the disc spring part can be reduced; because the bottom surface of the energy storage part of the hydraulic disc spring operating mechanism is higher than the bottom surface of the disc spring part, the jack is arranged to carry out limited support on the hydraulic disc spring operating mechanism; use packing area tightly fix on overhauing changing the platform with hydraulic pressure dish spring operating mechanism, prevent that hydraulic pressure dish spring operating mechanism slope from overturning, overhaul and change a plurality of bull's eye gyro wheels that the platform bottom surface evenly laid, not only can make to overhaul to change the platform and can 360 degrees rotations, and bearing capacity is strong, the hydraulic pressure dish spring operating mechanism's of being convenient for demolish and the installation, overhaul and change four supporting legs in platform four corners, through twisting the nut, make the supporting leg extend downwards, nylon cushion and backup pad top surface contact, thereby it overhauls the platform to lock at the hydraulic pressure dish spring operating mechanism in-process that shifts.
Drawings
FIG. 1 is a schematic structural view of a comparative example I;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a hydraulic cart according to a first embodiment of the present invention;
FIG. 4 is a front view of a repair and replacement platform according to a second embodiment of the present invention;
FIG. 5 is a left side view of a repair and replacement platform according to a second embodiment of the present invention;
FIG. 6 is a top view of a repair and replacement platform according to a second embodiment of the present invention;
fig. 7 is a schematic structural view of a hydraulic disc spring operating mechanism according to a second embodiment of the present invention;
fig. 8 is a front view of a repair and replacement platform in a third embodiment of the present invention.
Detailed Description
In order to better understand the present invention, the following examples are further provided to clearly illustrate the contents of the present invention, but the contents of the present invention are not limited to the following examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.
Comparative example 1
As shown in fig. 1, because the 500kV circuit breaker of transformer substation is bulky, a plurality of circuit breakers 1 are uniformly connected below the air chamber body 2, the height of the air chamber body is more than 2.5 meters, the hydraulic disc spring operating mechanism connected to the side surface of the circuit breaker is heavy, the difficulty of replacement is large during maintenance, and the traditional replacement method adopts a suspended mode: firstly, two flange interfaces on the air chamber body 2 are used as binding points, a binding band 3 is tied and bound on the binding points, a chain hoist 4 is connected below the two binding bands 3, chains of the two chain hoists 4 are hung at the front end and the rear end of the hydraulic disc spring operating mechanism 5 respectively, a suspension band 6 of a crane is hung at the middle part of the hydraulic disc spring operating mechanism 5, then the stroke of the chain hoist 4 is adjusted for many times, the lifting and transferring conditions of the hydraulic disc spring operating mechanism 5 are met, and the hydraulic disc spring operating mechanism 5 is moved out in cooperation with the crane (not shown in the figure) and the chain hoist 4.
However, this method has the following disadvantages: the existing disassembling and assembling method needs to determine and manufacture binding points of the chain hoist according to the characteristics of field equipment, and the lengths of hanging strips needed for manufacturing the binding points are different because circuit breaker manufacturers equipped with hydraulic spring operating mechanisms on the field are different and the structural forms and the like are different. In the process of adjusting the stroke of the chain block, the two chain blocks need to be adjusted repeatedly, so that the overhauling efficiency is greatly influenced; crane, chain block hang out the in-process, need crane driver and on-the-spot commander, maintainer three-party coordination cooperation, information transfer time is long, uses chain block to change moreover, and this mode consumes very big manpower, changes inefficiency, and in addition, uses special type vehicles such as crane, often needs the generating line to accompany and stop, consumes time for a specified time, and the number of operation people is many.
Example one
As shown in fig. 2 to 3, the overhaul and replacement method for the hydraulic disc spring operating mechanism of the 500kV circuit breaker comprises the following steps:
s1: after a supporting block 8, a supporting plate 9 and a maintenance and replacement platform 10 are sequentially placed on a hydraulic cart 7 (only a plate body part of the hydraulic cart is shown in fig. 2), the hydraulic cart is pushed to the position below a hydraulic disc spring operating mechanism 11 to be maintained and replaced;
s2: pressing the handle of the hydraulic trolley 7 for multiple times to enable the height of the hydraulic trolley 7 to rise until the disc spring part of the hydraulic disc spring operating mechanism 11 is contacted with the support module on the upper part of the maintenance and replacement platform 10;
s3: starting a telescopic module at the upper part of the maintenance and replacement platform 10 to stably support an energy storage part of the hydraulic disc spring operating mechanism 11;
s4: dismantling a fixing bolt for connecting the 500kV circuit breaker 12 and the hydraulic disc spring operating mechanism 11, and rotationally dismantling the hydraulic disc spring operating mechanism 11 through a 360-degree rolling module at the lower part of the overhaul and replacement platform 10;
s5: pushing the hydraulic cart 7 out of the maintenance station, fixing the hydraulic disc spring operating mechanism on the maintenance and replacement platform 10 by using a packing belt, screwing a plurality of supporting legs on the maintenance and replacement platform 10 downwards to be in contact with the supporting plate 9, and locking the maintenance and replacement platform 10;
s6: another hydraulic cart is used for integrally handing over and transporting the support plate 9, the maintenance and replacement platform 10 and the hydraulic disc spring operating mechanism 11.
The overhaul and replacement method of the hydraulic disc spring operating mechanism of the 500kV circuit breaker comprises the following steps that firstly, a hydraulic cart pushes an overhaul and replacement platform to the position below the hydraulic disc spring operating mechanism to be overhauled and replaced, a handle of the hydraulic cart is pressed for multiple times to enable the height of the hydraulic cart to rise until a disc spring part of the hydraulic disc spring operating mechanism is in contact with a support module at the upper part of the overhaul and replacement platform, then a telescopic module extends to support an energy storage part of the hydraulic disc spring operating mechanism, and therefore stability in the dismantling process is guaranteed; then, fixing bolts for connecting the 500kV circuit breaker and the hydraulic disc spring operating mechanism are removed, and the hydraulic disc spring operating mechanism is pulled out along with the maintenance and replacement platform after the fixing bolts are removed, so that the maintenance and replacement platform is convenient, rapid, time-saving and labor-saving, does not need additional accompanying and stopping equipment, saves manpower, and is high in replacement efficiency; the hydraulic trolley is pushed out of an overhauling station after dismantling is finished, the hydraulic disc spring operating mechanism is fixed on the overhauling and replacing platform by using a packing belt, a plurality of supporting legs on the overhauling and replacing platform are screwed downwards to be in contact with the supporting plate, the overhauling and replacing platform is locked, the hydraulic disc spring operating mechanism is prevented from sliding and falling off in the transferring process, and conveying safety is guaranteed.
Example two
A500 kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method comprises the following steps:
s1: after a supporting block, a supporting plate and a maintenance and replacement platform are sequentially placed on the hydraulic trolley, pushing the hydraulic trolley to the position below a hydraulic disc spring operating mechanism to be maintained and replaced;
s2: pressing a handle of the hydraulic trolley for multiple times to enable the height of the hydraulic trolley to rise until a disc spring part of the hydraulic disc spring operating mechanism is contacted with a support module at the upper part of the maintenance and replacement platform;
s3: starting a telescopic module at the upper part of the maintenance and replacement platform to stably support an energy storage part of the hydraulic disc spring operating mechanism;
s4: dismantling a fixing bolt for connecting the 500kV circuit breaker and the hydraulic disc spring operating mechanism, and rotationally dismantling the hydraulic disc spring operating mechanism through a 360-degree rolling module at the lower part of the overhauling and replacing platform;
s5: pushing the hydraulic cart out of the maintenance station, fixing the hydraulic disc spring operating mechanism on the maintenance and replacement platform by using a packing belt, screwing a plurality of supporting legs on the maintenance and replacement platform downwards to be in contact with the supporting plate, and locking the maintenance and replacement platform;
s6: the supporting plate, the overhaul replacing platform and the hydraulic disc spring operating mechanism are integrally handed over and transported by using a forklift, another forklift moves a new hydraulic disc spring operating mechanism, the overhaul replacing platform and the supporting plate to the front side of a hydraulic cart, the new hydraulic disc spring operating mechanism, the overhaul replacing platform and the supporting plate are placed on two supporting blocks on the hydraulic cart, the hydraulic cart is pulled back, the new hydraulic disc spring operating mechanism is located on one side of a 500kV circuit breaker, the heights of the hydraulic cart and a jack are adjusted, a mounting flange of the hydraulic disc spring operating mechanism is aligned to a mounting flange of the 500kV circuit breaker, mounting is carried out by using a fixing bolt, and overhaul and replacement of the 500kV circuit breaker hydraulic disc spring operating mechanism are completed.
The overhauling and replacing method of the hydraulic disc spring operating mechanism of the 500kV circuit breaker in the embodiment of the invention is different from the first embodiment in that:
as shown in fig. 4-7, two supporting blocks are arranged on the hydraulic trolley, the supporting plates are positioned on the two supporting blocks, the maintenance and replacement platform is positioned on the supporting plates, and when the hydraulic trolley is handed over and transported, the front fork part of another hydraulic trolley or forklift is inserted between the two supporting blocks.
The maintenance replacement platform comprises a platform body 101, two nylon rollers 102 arranged in parallel on the platform body 101 serve as support modules, a jack 103 arranged on the platform body 101 serves as a telescopic module, and a plurality of bull-eye rollers 104 uniformly distributed on the bottom surface of the platform body 101 serve as 360-degree rolling modules.
Two fastening rings 105 are arranged on two sides of the supporting module, the two fastening rings 105 on different sides are connected and fixed with the hydraulic disc spring operating mechanism 5 through a packing belt 21, and a rope tightener 22 is arranged on the packing belt 21.
Screw holes are formed in four corners of the platform body 101, threads are arranged on the upper portions of the supporting legs 106, the upper ends of the supporting legs penetrate through the screw holes and are connected with a nut 107, and nylon cushion blocks 108 are arranged at the lower ends of the supporting legs 106.
In the embodiment of the invention, a 10mm steel plate is used as the platform body, the supporting blocks are wood blocks, the supporting plate is a steel plate, two supporting blocks are arranged on the hydraulic cart, when another hydraulic cart or forklift is used for integrally handing over and transporting the supporting plate, the overhaul replacing platform and the hydraulic disc spring operating mechanism, the front fork part of the other hydraulic cart or forklift can enter from between the two supporting blocks, the supporting plate, the overhaul replacing platform and the hydraulic disc spring operating mechanism are integrally lifted, and handing over is completed; in addition, the support module is composed of two nylon rollers arranged in parallel, the cylindrical disc spring part can be just fixed on the upper parts of the two nylon rollers, the stability is good, and the abrasion of the disc spring part can be reduced; because the bottom surface of the energy storage part of the hydraulic disc spring operating mechanism is higher than the bottom surface of the disc spring part, the jack is arranged to carry out limited support on the hydraulic disc spring operating mechanism; use packing area tightly fix on overhauing changing the platform with hydraulic pressure dish spring operating mechanism, prevent that hydraulic pressure dish spring operating mechanism slope from overturning, overhaul and change a plurality of bull's eye gyro wheels that the platform bottom surface evenly laid, not only can make to overhaul to change the platform and can 360 degrees rotations, and bearing capacity is strong, the hydraulic pressure dish spring operating mechanism's of being convenient for demolish and the installation, overhaul and change four supporting legs in platform four corners, through twisting the nut, make the supporting leg extend downwards, nylon cushion and backup pad top surface contact, thereby it overhauls the platform to lock at the hydraulic pressure dish spring operating mechanism in-process that shifts.
EXAMPLE III
A500 kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method comprises the following steps:
s1: after a supporting block, a supporting plate and a maintenance and replacement platform are sequentially placed on the hydraulic trolley, pushing the hydraulic trolley to the position below a hydraulic disc spring operating mechanism to be maintained and replaced;
s2: pressing a handle of the hydraulic trolley for multiple times to enable the height of the hydraulic trolley to rise until a disc spring part of the hydraulic disc spring operating mechanism is contacted with a support module at the upper part of the maintenance and replacement platform;
s3: starting a telescopic module at the upper part of the maintenance and replacement platform to stably support an energy storage part of the hydraulic disc spring operating mechanism;
s4: dismantling a fixing bolt for connecting the 500kV circuit breaker and the hydraulic disc spring operating mechanism, and rotatably dismantling the hydraulic disc spring operating mechanism through a 360-degree rolling module at the lower part of the overhaul and replacement platform;
s5: pushing the hydraulic trolley out of the maintenance station, fixing the hydraulic disc spring operating mechanism on the maintenance and replacement platform by using a packing belt, screwing a plurality of supporting legs on the maintenance and replacement platform downwards to be in contact with the supporting plate, and locking the maintenance and replacement platform;
s6: the support plate, the overhaul replacement platform and the hydraulic disc spring operating mechanism are integrally handed over and transported by using a forklift, the new hydraulic disc spring operating mechanism, the overhaul replacement platform and the support plate are moved to the front side of the hydraulic trolley by using the other forklift, the new hydraulic disc spring operating mechanism, the overhaul replacement platform and the support plate are placed on two support blocks on the hydraulic trolley, the hydraulic trolley is pulled back, the new hydraulic disc spring operating mechanism is positioned on one side of a 500kV circuit breaker, the heights of the hydraulic trolley and a jack are adjusted, a mounting flange of the hydraulic disc spring operating mechanism is aligned to a mounting flange of the 500kV circuit breaker, and the mounting is carried out by using a fixing bolt, so that the overhaul replacement of the 500kV circuit breaker hydraulic disc spring operating mechanism is completed.
Two supporting blocks are placed on the hydraulic trolley, the supporting plate is located on the two supporting blocks, the maintenance and replacement platform is located on the supporting plate, and when the hydraulic trolley is handed over and conveyed, the front fork part of another hydraulic trolley or forklift is inserted between the two supporting blocks.
The maintenance replacement platform comprises a platform body, two nylon rollers arranged in parallel on the platform body serve as supporting modules, a jack arranged on the platform body serves as a telescopic module, and a plurality of eyelet idler wheels uniformly distributed on the bottom surface of the platform body serve as 360-degree rolling modules.
The two sides of the supporting module are provided with two fastening rings, the two fastening rings on different sides are fixedly connected through a packing belt, and a rope tightener is arranged on the packing belt.
As shown in fig. 8, the overhauling and replacing method for the hydraulic disc spring operating mechanism of the 500kV circuit breaker according to the embodiment of the invention is different from the second embodiment in that: the four corners of the platform body 101 are provided with through holes, threads are arranged on the supporting legs 106, the upper ends of the supporting legs 106 penetrate through the screw holes and are connected with a nut 107, nylon cushion blocks 108 are arranged at the lower ends of the supporting legs 106, springs 109 are sleeved on the supporting legs 106, and the springs 109 are located between the nylon cushion blocks 108 and the platform body 101.
In the embodiment of the invention, the nut is screwed down, the supporting leg moves upwards, the distance between the platform body and the supporting plate is shortened, so that the bull eye roller is contacted with the supporting plate, the nut is unscrewed, the supporting leg extends downwards under the action of the spring, so that the nylon cushion block is contacted with the supporting plate, and further the maintenance and replacement platform is prevented from moving.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited, and other modifications or equivalent substitutions made by the technical solutions of the present invention by the persons skilled in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A500 kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method is characterized by comprising the following steps:
s1: after a supporting block, a supporting plate and a maintenance and replacement platform are sequentially placed on the hydraulic trolley, pushing the hydraulic trolley to the position below a hydraulic disc spring operating mechanism to be maintained and replaced;
s2: pressing a handle of the hydraulic trolley for multiple times to enable the height of the hydraulic trolley to rise until a disc spring part of the hydraulic disc spring operating mechanism is contacted with a support module at the upper part of the maintenance and replacement platform;
s3: starting a telescopic module at the upper part of the maintenance and replacement platform to stably support an energy storage part of the hydraulic disc spring operating mechanism;
s4: dismantling a fixing bolt for connecting the 500kV circuit breaker and the hydraulic disc spring operating mechanism, and rotationally dismantling the hydraulic disc spring operating mechanism through a 360-degree rolling module at the lower part of the overhauling and replacing platform;
s5: pushing the hydraulic cart out of the maintenance station, fixing the hydraulic disc spring operating mechanism on the maintenance and replacement platform by using a packing belt, screwing a plurality of supporting legs on the maintenance and replacement platform downwards to be in contact with the supporting plate, and locking the maintenance and replacement platform;
s6: and the supporting plate, the maintenance and replacement platform and the hydraulic disc spring operating mechanism are integrally handed over and conveyed by using another hydraulic cart or forklift.
2. The overhaul and replacement method for the hydraulic disc spring operating mechanism of the 500kV circuit breaker as recited in claim 1, characterized in that: two supporting blocks are placed on the hydraulic trolley, the supporting plate is located on the two supporting blocks, the maintenance and replacement platform is located on the supporting plate, and when the hydraulic trolley is handed over and conveyed, the front fork part of another hydraulic trolley or forklift is inserted between the two supporting blocks.
3. The overhaul and replacement method for the hydraulic disc spring operating mechanism of the 500kV circuit breaker as recited in claim 2, characterized in that: the maintenance replacement platform comprises a platform body, two nylon rollers arranged in parallel on the platform body serve as support modules, a jack arranged on the platform body serves as a telescopic module, and a plurality of bull-eye rollers uniformly distributed on the bottom surface of the platform body serve as 360-degree rolling modules.
4. The overhaul and replacement method of the 500kV circuit breaker hydraulic disc spring operating mechanism as claimed in claim 3, characterized in that: the two sides of the supporting module are provided with two fastening rings, the two fastening rings on different sides are fixedly connected through a packing belt, and a rope tightener is arranged on the packing belt.
5. The overhaul and replacement method of the 500kV circuit breaker hydraulic disc spring operating mechanism as claimed in claim 4, characterized in that: the four corners of the platform body are provided with screw holes, the upper parts of the supporting legs are provided with threads, the upper ends of the supporting legs penetrate through the screw holes and are connected with a nut, and the lower ends of the supporting legs are provided with nylon cushion blocks.
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| CN202110201411.7A CN112803288B (en) | 2021-02-23 | 2021-02-23 | 500kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method |
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| CN202110201411.7A CN112803288B (en) | 2021-02-23 | 2021-02-23 | 500kV circuit breaker hydraulic disc spring operating mechanism overhauling and replacing method |
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| CN112803288B true CN112803288B (en) | 2022-07-22 |
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| CN112803288A (en) | 2021-05-14 |
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Address after: No.40, Huaihe Road, Zhongyuan District, Zhengzhou City, Henan Province 450006 Applicant after: Super high voltage company of State Grid Henan Electric Power Co. Applicant after: STATE GRID CORPORATION OF CHINA Address before: No.40, Huaihe Road, Zhongyuan District, Zhengzhou City, Henan Province 450006 Applicant before: MAINTENANCE COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Applicant before: STATE GRID CORPORATION OF CHINA |
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