CN204424768U - A kind of mounting operation platform of outdoor disconnector operating mechanism - Google Patents

Abstract

The utility model discloses a kind of mounting operation platform of outdoor disconnector operating mechanism, and platform is provided with the support placing isolating switch operating mechanism, and described support is fixed on two guide pillars, and described guide pillar is fixed on cylinder by least two anchor ears.Mounting operation platform has the following advantages: 1, save a large amount of human and material resources, financial resources, and 2, increase work efficiency, ensure installation quality and operating personnel's safety, 3, social effect is remarkable.

Description

A working platform for installing the operating mechanism of an outdoor isolating switch

technical field

The utility model relates to an auxiliary appliance for electric power facilities, in particular to an on-site installation and operation integrated platform applied to an operating mechanism of a 110-220 kV isolating switch.

Background technique

As a main breaking device of the power system, the isolating switch directly affects the transmission and distribution of electric energy and the safe and reliable operation of the system. The power system should use the isolating switch to open and close the circuit under the condition of voltage and no load current to achieve the purpose of safety isolation. Therefore, the isolating switch is the most widely used electrical appliance in high-voltage electrical appliances. The function of the isolating switch is mainly to isolate the high-voltage power supply to ensure the safe maintenance of other equipment and lines. Therefore, its structure has the following characteristics, that is, there is a clearly visible disconnection gap after disconnection, and the insulation of the disconnection gap and the phase-to-phase insulation are sufficiently reliable, which can fully guarantee the personal safety of equipment maintenance.

Since the isolating switch equipment is often operated and is in an active state, not only the conductive contact, insulation creepage distance, etc., but also the mechanical properties of the isolating switch must be considered. Whether the mechanical properties are normal or not directly determines the opening and closing position of the isolating switch, Occurrence of typical faults and defects such as contact resistance and component stress. According to relevant statistics, the failure of the mechanical part of the isolating switch accounts for about 70% of all the failures of the isolating switch. Therefore, to do a good job in the repair and maintenance of the isolating switch, the focus should be on the mechanical part of the isolating switch. Only by grasping the key points of overhaul and maintenance of the isolating switch can the safe operation of the isolating switch be guaranteed. The installation quality of the isolating switch operating mechanism is directly related to the mechanical properties of the isolating switch.

In the power production site, the installation of the operating mechanism of the disconnector is different from the special installation and commissioning workshop of the equipment manufacturer. The two key steps of vertical center positioning and horizontal position calibration of the disconnector body and the operating mechanism in the installation operation are completely dependent on manpower and Based on past installation experience, this will inevitably waste a lot of manpower and time, and the installation quality cannot be guaranteed. In addition, due to the heavy operating mechanism box, there are many accidents of such operations in the system.

According to the survey, the traditional installation method of the isolating switch operating mechanism is to manually erect wooden blocks to build the installation platform. The traditional installation method is very troublesome and has many disadvantages:

1. More manpower is required to carry out three-dimensional mobile positioning of the operating mechanism, and the positioning is usually not in place at one time, and repeated positioning increases the waste of manpower;

2. When manually erecting wooden blocks to build the installation platform, whether the ground is flat or not and the soil quality will seriously affect the speed of platform construction, and the platform will take a long time to build;

3. The three-dimensional mobile positioning of the operating mechanism and the construction of the installation platform need to be coordinated and coordinated, and require the command and coordination of experienced operators, which additionally increases the experience and skill requirements of the operators;

4. The vertical center positioning and horizontal position calibration of the isolating switch body and the operating mechanism are two key steps in the installation operation, which completely rely on manpower and previous installation experience, and the installation quality cannot be guaranteed;

5. The stability of the platform built with wooden blocks cannot be guaranteed and the operating mechanism is heavy, so the safety of the operators cannot be effectively guaranteed.

Utility model content

The technical problem to be solved by the utility model is to realize a three-dimensional mobile positioning of the operating mechanism efficiently, reduce the requirements for the experience and skills of the installation operators, effectively save a lot of manpower and time, improve the installation quality of the isolating switch, and ensure the operation An integrated platform for on-site installation and operation of the isolating switch operating mechanism for personnel safety.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an installation work platform for the operating mechanism of an outdoor isolating switch, the platform is provided with a bracket for placing the operating mechanism of the isolating switch, and the bracket is fixed on two guide columns. The guide post is fixed on the post by at least two hoops.

A lifting mechanism is provided between the guide post and the bracket, and the lifting mechanism includes a sliding sleeve for fixing the bracket on the guide post, a rack arranged on the bracket, and a tooth rack arranged on the guide post to match the rack. A drive gear, a drive shaft is fixed on the drive gear, a drive wheel is fixed on the outer end of the drive shaft, a locking mechanism is also provided on the fixed guide post, and the lock mechanism is fixed on the guide post through a rotating shaft, One end of the rotating shaft is provided with a locking tooth embedded in the rack, and a compression spring is provided between the other end and the guide post.

The bracket is composed of two right-angle frames, the outer end of the bracket is provided with a baffle plate that limits the position of the operating mechanism of the isolation switch, and a reinforcing link is arranged between the two right-angle frames, and the two right-angle frames are equipped with A level is provided, and the reinforced connecting rod is composed of two connecting rods respectively fixed on the right-angle frames on both sides, and a nut sleeve connecting the two connecting rods, one end of the nut sleeve is threadedly connected with one of the connecting rods, The other end is a through hole for the insertion of another connecting rod, and is provided with a locking screw penetrating through the side wall.

The bracket is provided with a support plate, the level is fixed on the support plate, the bracket is provided with a screw hole, and a level adjustment screw is provided in the screw hole, and the upper end of the level adjustment screw is provided with a contact support Support blocks for the underside of the board.

The outer end of the bracket is provided with a horizontally arranged front and rear adjusting screw rod, and the end of the front and rear adjusting screw rod contacts the outer end of the support plate.

The pulley bar is fixed on the bottom surface of the support plate, and a total of four horizontal adjustment screw rods are arranged on each of the right-angle frames.

Two left and right adjustment screw rods are arranged on the outside of the support plate, and the ends of the left and right adjustment screw rods contact the isolation switch operating mechanism.

The hoop is fixed on the cylinder through a self-locking clip, and a circle of anti-skid washers is provided inside the hoop. The self-locking clip includes a wrench, a jacket and a fixed bayonet. The jacket is U-shaped and threaded at the end, the wrench is provided with a fixing hole for installing a jacket, and the jacket is fixed on the wrench by a nut.

The guide post is a hollow structure, and a guide post lifting screw is provided inside, and a base supported on the ground is provided at the bottom of the guide post lifting screw.

Both sides of the bracket are provided with crowbar slots and equipped with crowbars, the side of the base of the guide post lifting screw rod is provided with crowbar holes, and the side of the driving wheel is also provided with crowbar holes.

The utility model has the advantages of:

1. Save a lot of manpower, material and financial resources

As a main breaking device of the power system, the isolating switch directly affects the transmission and distribution of electric energy and the safe and reliable operation of the system. The power system should use the isolating switch to open and close the circuit under the condition of voltage and no load current to achieve the purpose of safety isolation. Therefore, the isolating switch is the most widely used electrical appliance in high-voltage electrical appliances.

In recent years, power supply companies have developed rapidly, and many new substations are put into operation every year. Due to the large number of substations under the jurisdiction of the company, the maintenance work for the replacement of isolating switch equipment such as the comprehensive self-renovation project of substations is relatively heavy. The annual technical overhaul project and the replacement of the isolating switch need a lot of manpower and time, and the project cost is high. The integrated platform for on-site installation and operation of the 110-220kV isolating switch operating mechanism successfully developed in this project can efficiently complete the installation of the isolating switch operating mechanism, greatly reducing the manpower and time-consuming required for the project, and creating considerable benefits for the company.

2. Improve work efficiency, ensure installation quality and safety of operators.

The traditional method of manually erecting wooden blocks to build the installation platform completely relies on manpower and previous installation experience. It requires more manpower to carry out three-dimensional mobile positioning of the operating mechanism. The positioning is usually not in place at one time. Repeated positioning increases the waste of manpower and time. ;The three-dimensional mobile positioning of the operating mechanism and the construction of the installation platform need to be coordinated and coordinated, and require the command and coordination of experienced operators, which additionally increases the experience and skill requirements of the operators; the operating risks are uncontrollable, and the safety of the operators cannot be guaranteed. effective guarantee.

The integrated platform for on-site installation and operation of the operating mechanism of the 110-220kV isolation switch developed can conveniently and quickly adjust the spatial position of the operating mechanism, realize three-dimensional free movement of the operating mechanism, one-time precise positioning and horizontal position calibration; The hoop is fixed on the pillar below the isolating switch, so that the platform is suspended in the air as a whole, and is not affected by ground factors during the installation of the operating mechanism; operators can use this platform to complete the installation of the operating mechanism of the isolating switch efficiently and controllably , greatly reducing the workload of operators and improving work efficiency; the platform does not set thresholds for the experience and skills of operators, the operation process is simple and clear, the installation quality is guaranteed and the safety of operators is effectively guaranteed.

3. Significant social effect

Safe production is the eternal theme of electric power enterprises, and the safety of electric power equipment will directly affect the production safety of electric power enterprises; power supply reliability is a concentrated expression of the quality and level of power supply enterprise planning, operation, management, etc. Satisfaction with power supply companies. The failure of the mechanical performance of the isolating switch will lead to serious defects such as inseparability and closure, which will seriously endanger the safe production and power supply reliability of the power grid in emergency situations. Once a power outage occurs due to electrical equipment, the losses caused in all aspects are immeasurable. Especially in today's increasingly tense power supply, the safe and stable operation of power grid equipment reflects social benefits far greater than its economic value, which affects social stability to a certain extent.

Description of drawings

The following is a brief description of the content expressed in each piece of drawings in the specification sheet of the utility model and the marks in the figure:

Figure 1-4 is a schematic diagram of the platform structure;

The marks in the above figures are: 1. Hoop; 2. Guide column; 3. Bracket; 4. Support plate; 5. Lifting mechanism; 6. Locking mechanism; 7. Front and rear adjustment screw rod; Rod; 9. Horizontal adjustment screw; 10. Self-locking clip; 11. Isolation switch operating mechanism; 12. Reinforced connecting rod.

Detailed ways

The 110-220kV isolation switch operating mechanism 11 of the utility model is an integrated platform for on-site installation and operation, which can conveniently and quickly adjust the spatial position of the operating mechanism, realize three-dimensional free movement of the operating mechanism, one-time precise positioning and horizontal position calibration; through the upper , The lower hoop 1 is fixed on the pillar below the isolating switch, so that the platform is suspended in the air as a whole, and is not affected by ground factors during the installation of the operating mechanism. The platform has no threshold for the experience and skills of the operators, the operation process is simple and clear, the installation quality is guaranteed and the safety of the operators is effectively guaranteed.

The specific structure of the installation work platform is shown in Figure 1-4. The platform is fixed on the column (wire column) through the hoop 1, and the hoop 1 is fixed on the column through the self-locking clip 10, which is convenient for on-site installation. Reliability, the inside of the hoop is provided with a circle of non-slip washer, which can be a rubber pad. In addition, due to the different thicknesses of the cylinders on site, in order to improve the versatility of the equipment, the self-locking clip includes a wrench, a jacket and a fixed bayonet. The jacket is U-shaped and has threads at the end. hole, the jacket is fixed on the wrench by a nut, so that the length of the jacket can be adjusted by the nut, thereby adjusting the inner diameter of the hoop 1.

A guide post 2 is welded on both sides of the hoop 1, and the bracket 3 used to support the operating mechanism 11 of the isolation switch is fixed on the guide post 2. The bracket 3 is composed of two right-angle frames, which are respectively fixed on the guide post 2 Above, a baffle plate that limits the position of the isolating switch operating mechanism 11 is set at a right angle, so that the placement of the isolating switch operating mechanism 11 will not be deflected, and when the equipment is damaged and broken, the isolating switch operating mechanism 11 will be protected. Certain blocking effect.

For improving firmness, be provided with reinforcing connecting rod 12 between the right-angled frames. The reinforced connecting rod 11 is composed of two connecting rods respectively fixed on the right-angle frames on both sides, and a nut sleeve connecting the two connecting rods. It is inserted into the through hole, and is equipped with a locking screw through the side wall, so that the distance between the two right-angle brackets can be adjusted.

For the convenience of adjusting the height of the isolation switch operating mechanism 11, a lifting mechanism 5 is provided between the guide post 2 and the support 3. The lifting mechanism 5 includes a sliding sleeve for fixing the support 3 on the guide post 2, and a rack set on the support 3. , the driving gear that is arranged on the guide post 2 to match the rack, through the cooperation of the rack and the gear, the height of the disconnector operating mechanism 11 can be adjusted conveniently, the driving gear is fixed with a transmission shaft, and the outer end of the transmission shaft is fixed There are driving wheels, so that the lifting can be driven by the driving wheels to save effort. In addition, the driving gear is also provided with a locking mechanism 6, through which the lifting mechanism 5 can be locked after being adjusted to an appropriate height. The locking mechanism is fixed on the guide post through the rotating shaft. One end of the rotating shaft is provided with a locking tooth embedded in the rack, and a compression spring is provided between the other end and the guide post.

For the convenience of fine-tuning the position of the isolating switch operating mechanism 11, a support plate 4 is provided on the support 3, and a level can be set on the support plate 4 to facilitate observation whether it is in a horizontal state. The support 3 is provided with a screw hole, and the screw hole is provided with a There is a horizontal adjustment screw rod 9, and the support block at the upper end of the horizontal adjustment screw rod 9 contacts the bottom surface of the support plate 4. Each right-angle frame is provided with four horizontal adjustment screw rods 9, so that no matter where the support plate 4 moves to any position, the levelness of the isolation switch operating mechanism 11 can be adjusted through the horizontal adjustment screw rods 9.

The outer end of the bracket 3 is provided with a horizontally arranged front and rear adjusting screw rod 7, and the end of the front and rear adjusting screw rod 7 contacts the outer end of the support plate 4, so that the front and rear positions of the isolation switch operating mechanism 11 can be adjusted through the front and rear adjusting screw rod 7. Two left and right adjustment screw rods 8 are arranged on the outside of the support plate 4, and the ends of the left and right adjustment screw rods 8 contact the isolation switch operating mechanism 11, so that the lateral position of the isolation switch operating mechanism 11 can be adjusted by the left and right adjustment screw rods 8 .

The guide column of the equipment is a hollow structure, with a guide column lifting screw inside, and a base supported on the ground at the bottom of the guide column lifting screw, which can support the entire equipment more reliably and improve work safety. There is a crowbar slot and equipped with a crowbar. There are crowbar holes on the side of the base of the guide post lifting screw, and there are also crowbar holes on the side of the driving wheel. The equipment can be adjusted with a crowbar conveniently.

The platform adopts aluminum alloy as the frame of the bracket 3, and its strength and pressure resistance meet the requirements of supporting the operating mechanism. The overall structure of the platform is light and easy to operate. Parts) can conveniently and quickly adjust the spatial position of the operating mechanism, realize the three-dimensional free movement of the operating mechanism, one-time precise positioning and horizontal position calibration; the platform judges and adjusts the spatial position of the operating mechanism through mechanical components, which is more manual The traditional method of experience should be accurate, convenient and efficient; compared with manual erection, there is no threshold for the experience and skills of the operators, the operation process is simple and clear, and the installation process of the traditional operating mechanism is optimized. The installation quality is guaranteed while the operation is effectively guaranteed. personnel safety. The upper and lower hoops 1 are fixed on the cylinder below the isolating switch, so that the platform is suspended in the air as a whole, and is not affected by ground factors during the installation of the operating mechanism.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner, as long as various insubstantial improvements are carried out by adopting the method concept and technical solutions of the present invention, or without Improvements that directly apply the concept and technical solutions of the present invention to other occasions are within the protection scope of the present utility model.

Claims (10)

1. a mounting operation platform for outdoor disconnector operating mechanism, is characterized in that: platform is provided with the support placing isolating switch operating mechanism, and described support is fixed on two guide pillars, and described guide pillar is fixed on cylinder by least two anchor ears.

2. the mounting operation platform of outdoor disconnector operating mechanism according to claim 1, it is characterized in that: between described guide pillar and support, be provided with elevating mechanism, described elevating mechanism comprises the sliding sleeve be fixed on by support on guide pillar, be arranged on the tooth bar on support, be arranged on the driven wheel that guide pillar matches with described tooth bar, described driven wheel is fixed with power transmission shaft, described power transmission shaft outer end is fixed with driving wheel, described fixing guide pillar is also provided with lockable mechanism, described lockable mechanism is fixed on guide pillar by rotating shaft, described rotating shaft one end is provided with the latch embedding tooth bar, stage clip is provided with between the other end and guide pillar.

3. the mounting operation platform of outdoor disconnector operating mechanism according to claim 2, it is characterized in that: described support is made up of two right angle frames, described support outer end is provided with the baffle plate of restriction isolating switch operating mechanism position, reinforcing connecting rod is provided with between two described right angle frames, and two right angle frames are equipped with level meter, described reinforcing connecting rod is separately fixed at the connecting rod on the right angle frame of both sides by two, and the nut sleeve connecting two connecting rods is formed, described nut sleeve one end is threaded with one of them connecting rod, the other end is the through hole inserted for another connecting rod, and be provided with the lock bolt running through sidewall.

4. the mounting operation platform of outdoor disconnector operating mechanism according to claim 3, it is characterized in that: described support is provided with supporting bracket, described level meter is fixing on the supporting plate, described support is provided with screw, and in screw, being provided with Level tune screw mandrel, described Level tune screw mandrel upper end is provided with the back-up block of contact supporting bracket bottom surface.

5. the mounting operation platform of outdoor disconnector operating mechanism according to claim 4, is characterized in that: described support outer end is provided with horizontally disposed front and back and regulates screw mandrel, and described front and back regulate the ends contact supporting bracket outer end of screw mandrel.

6. the mounting operation platform of outdoor disconnector operating mechanism according to claim 5, is characterized in that: described supporting bracket bottom surface fixed block bar, each described right angle frame is established totally four Level tune screw mandrels.

7. the mounting operation platform of outdoor disconnector operating mechanism according to claim 6, is characterized in that: be equipped with two left and right adjusting screw mandrels outside described supporting bracket, the ends contact isolating switch operating mechanism of described left and right adjusting screw mandrel.

8. the mounting operation platform of the outdoor disconnector operating mechanism according to any one of claim 2-7, it is characterized in that: described anchor ear is fixed on cylinder by self-locking clip, a circle anti-skid washer is provided with inside described anchor ear, described self-locking clip comprises spanner, chuck and fixing bayonet socket, described chuck takes the shape of the letter U and end is provided with screw thread, described spanner is provided with the fixing hole installing chuck, and described chuck is fixed on spanner by nut.

9. the mounting operation platform of outdoor disconnector operating mechanism according to claim 8, is characterized in that: described guide pillar is hollow structure, and inside is provided with guide pillar elevating screw, is provided with and is supported on ground base bottom described guide pillar elevating screw.

10. the mounting operation platform of outdoor disconnector operating mechanism according to claim 9, it is characterized in that: described support both sides are provided with crowbar slot and are furnished with crowbar, the base side of described guide pillar elevating screw is provided with crowbar hole, and described driving wheel side is also provided with crowbar hole.