CN210650456U

CN210650456U - Thyristor replacement tool

Info

Publication number: CN210650456U
Application number: CN201921123577.6U
Authority: CN
Inventors: 马向南; 禹晋云; 张家兴; 王小岭; 颜波; 毛仕涛; 杨铖; 甘涛; 徐友; 叶健; 陈文�; 袁正忠; 郭锡元
Original assignee: Kunming Bureau of Extra High Voltage Power Transmission Co
Current assignee: Kunming Bureau of Extra High Voltage Power Transmission Co
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-06-02
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a thyristor replacement instrument, this instrument are including locating the motor of the rotational speed adjustable in the casing, and motor one end is equipped with the push rod, and outside the push rod stretched out the casing, the casing both sides were equipped with the support of taking the pull rod, and the thyristor mounting is connected to push rod one end, and thyristor replacement instrument is equipped with the support of taking the pull rod through both sides and fixes on the valve tower, through the fixed thyristor of thyristor mounting. The utility model discloses can effectively improve the change speed of direct current converter valve thyristor, make whole change operation steady reliable simultaneously, effectively improve the security that the operation was changed to the thyristor.

Description

Thyristor replacement tool

Technical Field

The utility model relates to a change instrument, especially a thyristor change instrument.

Background

The thyristor in the converter valve is the core equipment of direct current transmission and transformation. With the development of the power electronic thyristor technology, the pressure of the thyristor is higher and higher, and the requirement on a disassembling tool is higher and higher.

There are two methods for replacing thyristors. One method is to place a thread ejector rod between two radiators after the whole thyristor silicon stack assembly of the converter valve is completely released, rotate the thread ejector rod to jack the radiators at two ends of the thyristor to be replaced, and then take out the thyristor. The biggest defect of the method is that all weight of the silicon stack is borne by an insulating pull ring after complete pressure relief, the insulating pull ring is easy to damage, a thyristor device is easy to damage when a radiator is obliquely pressurized due to asynchronous rotation of a threaded ejector rod, and the replacement efficiency of the screw ejector rod is low. In another method, a T-shaped stainless steel hook is used for hooking the edge small hole on the thyristor, one person holds the hook and the other person completely relieves the pressure of the whole silicon stack assembly, and then the thyristor is lifted out of the silicon stack by the hook. In the process, the thyristor can be lifted out only by large force due to large pressing force between the radiator and the silicon stack. Because the edge on the thyristor is made of softer aluminum material, the small hole is easy to deform at the moment of the thyristor, and the thyristor triggers the damage of the optical fiber or the cable, so that the safety is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a thyristor change instrument and method utilizes the rotary motion of screw thread and the reset function realization of spring to the clamping of thyristor, loosen and automatic positioning. The anti-falling chain enables the easy-falling parts of the tool to be connected with the tool, so as to prevent the tool parts from falling. The clamping block is utilized to realize rapid positioning and clamping with the valve plate.

The technical scheme of the utility model is specifically as follows:

the utility model provides a thyristor replacement instrument, is including locating the motor of rotational speed adjustable in the casing, and motor one end is equipped with the push rod, and outside the push rod stretched out the casing, the casing both sides were equipped with the support of taking the pull rod, and thyristor mounting is connected to push rod one end, and thyristor replacement instrument is equipped with the support of taking the pull rod through both sides and fixes on the valve tower, fixes the thyristor through the thyristor mounting.

Furthermore, the motor drives the push rod to move up and down, and one end of the shell is provided with an ascending button and a descending button.

Further, the support includes the fixed bolster, and the pull rod includes the body of rod and locates body of rod one end and be equipped with the locating part, and the body of rod embolias the fixed bolster in, and the fixed bolster is fixed in the standpipe, and standpipe one end is equipped with lock nut and the swivel nut who links to each other with the body of rod, and wherein swivel nut drives the body of rod and rotates, and lock nut locks swivel nut.

Further, one end of the vertical pipe is matched with the valve tower in shape.

Further, the thyristor fixing piece is fixed on the push rod through a connecting sleeve and a sliding sleeve.

Further, the thyristor mounting includes the fixing base, fixing base one end shape and thyristor appearance match, the fixing base other end is equipped with the connecting axle, the connecting axle is connected with push rod one end, fixing base one side is equipped with presss from both sides tight piece A, it has the bolt to insert on the tight piece A of clamp, bolt one end is equipped with gets pull ring and handle, it is equipped with the spring to get the pull ring and press from both sides between the tight piece A, it is equipped with the spring housing to get pull ring one end, the bolt is located fixing base lower extreme one side, the fixing base opposite side is equipped with and presss from both sides tight piece B, spring and 5x 15 round pins are packed into in the fixing base other end.

Furthermore, a small boss is arranged at one end of the clamping block B and matched with the shape of the small groove on one side of the thyristor.

Furthermore, handles are arranged on the other two sides of the fixed seat.

Furthermore, anti-falling chains are arranged between the thyristor fixing part and the supports and between the locking screws of the two supports and the supports, so that the anti-falling chain is prevented from falling in the installation operation process.

Compared with the prior art, the beneficial effects of the utility model are specifically as follows:

the utility model discloses a thyristor replacement tool adopts electric drive, only needs a small-size battery, can drive servo motor and carry out work, replaces manual operation with electric drive, and power take off is steady, and is adjustable, makes the change process very steady reliable. Meanwhile, the thyristor fixing piece is designed according to the appearance size of the thyristor, so that the thyristor cannot swing in the horizontal direction in the replacement process, and only runs in the vertical direction, so that the thyristor fixing piece is free of collision risk, and is safer in operation.

Drawings

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

fig. 2 is a side view of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is a disassembled view of the left bracket of the present invention;

fig. 5 is a view of the right bracket of the present invention;

fig. 6 is a schematic structural diagram of a thyristor fixing member according to the present invention;

fig. 7 is a diagram of the thyristor mount according to the present invention;

fig. 8 is a schematic view of the structure of the present invention secured to a valve tower;

fig. 9 is a schematic structural view of a thyristor holder and a thyristor holder;

fig. 10 is a schematic structural view of the thyristor fixing member fixed to the push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some examples of the present invention, and not all examples. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, the tool for replacing the thyristor of the embodiment includes a motor with an adjustable rotation speed and disposed in a housing 4, a push rod 6 is disposed at one end of the motor, the push rod 6 extends out of the housing 4, a left bracket 2 and a right bracket 3 with pull rods are disposed on two sides of the housing 4, a thyristor fixing member 1 is connected to one end of the push rod 6, the thyristor replacing tool 1 is fixed on a valve tower through the brackets with pull rods disposed on two sides, and the thyristor is fixed through the thyristor fixing member. The motor drives the push rod 6 to move up and down, and one end of the shell 4 is provided with an ascending button and a descending button 5. The motor of this embodiment is prior art, through small-size battery, can drive servo motor and carry out work. The motor drives the thread pair to convert the rotary motion into linear motion, so that the ascending and descending speed regulation of the push rod 6 is convenient, and the layout and the operation are easy.

As shown in fig. 2 and 3, the thyristor holder 1 is fixed to the push rod 6 by a connecting sleeve 7 and a sliding sleeve 8.

As shown in fig. 4, the left bracket 2 includes a fixed bracket 2.3, the pull rod includes the body of rod and locates body of rod one end and be equipped with locating part 2.1, the body of rod embolias fixed bracket 2.3, fixed bracket 2.3 cover is fixed in standpipe 2.5, standpipe 2.5 one end is equipped with lock nut 2.9 and swivel nut 2.8 that link to each other with the body of rod, wherein swivel nut 2.8 drives the body of rod and rotates, and lock nut 2.9 locks swivel nut 2.8. A boss is arranged at one end of the vertical pipe 2.5 and matched with the valve tower in shape.

During installation, a fixing support 2.3 is sleeved on the pull rod by taking the pull rod, a 2 x8 pin 2.2 is arranged in the pull rod, a 10 x 40 spring 2.4 is sleeved in the pull rod, a vertical pipe 2.5 is taken, the fixing support 2.3 is arranged in the vertical pipe 2.5 and is fixed by an inner hexagonal screw 2.10, a joint 2.6 is arranged in the vertical pipe 2.5 and is fixed by the inner hexagonal screw 2.10, a 3 x 12 positioning pin 2.7 is pressed into a rotating nut 2.8, the rotating nut 2.8 and a locking nut 2.9 are sequentially arranged on the pull rod, a limiting part 2.1 is exposed out of the fixing support 2.3, and a falling-proof ring 2.11 is sleeved in the locking nut 2.9.

As shown in fig. 5, the right bracket 2 includes a fixed bracket 3.4, the pull rod includes a rod body and is provided with a limiting part 3.1 at one end of the rod body, the rod body is sleeved in the fixed bracket 3.4, the fixed bracket 3.4 is sleeved in the vertical tube 3.5 to be fixed, one end of the vertical tube 3.5 is provided with a locking nut 3.9 and a rotating nut 3.8 which are connected with the rod body, wherein the rotating nut 3.8 drives the rod body to rotate, and the locking nut 3.9 locks the rotating nut 3.8. A boss is arranged at one end of the vertical pipe 3.5 and matched with the valve tower in shape.

During installation, a fixing support 3.4 is sleeved on the pull rod by taking the pull rod, a 2 x8 pin 3.2 is arranged in the pull rod, a 10 x 40 spring 3.3 is sleeved in the pull rod, a vertical pipe 3.5 is taken, the fixing support 3.4 is arranged in the vertical pipe 3.5 and is fixed by an inner hexagonal screw 3.10, a joint 3.6 is arranged in the vertical pipe 3.5 and is fixed by the inner hexagonal screw 3.10, a 3 x 12 positioning pin 3.8 is pressed into a rotating nut 3.7, the rotating nut 3.7 and a locking nut 3.9 are sequentially arranged on the pull rod, a limiting part 3.1 is exposed out of the fixing support 3.4, and a falling-proof ring 3.11 is sleeved in the locking nut 3.9.

As shown in fig. 6 and 7, the thyristor fixing element includes a fixing seat 1.1, one end of the fixing seat 1.1 is matched with the shape of the thyristor 11, the other end of the fixing seat 1.1 is provided with a connecting shaft 1.3, the connecting shaft 1.3 is connected with one end of a push rod 6, one side of the fixing seat 1.1 is provided with a clamping block a1.2, a bolt 1.5 is inserted into the clamping block a1.2, one end of the bolt 1.5 is provided with a pull-out ring 1.14 and a handle 1.13, a spring 1.6 is arranged between the pull-out ring 1.14 and the clamping block a1.2, one end of the pull-out ring 1.14 is provided with a spring sleeve 1.7, the bolt 1.5 is located on one side of the lower end of the fixing seat 1.1, the other side of the fixing seat 1.1 is provided with a clamping block B1.1, a pair of 5X10 springs 1.10 and a pair of 5X 15 pins 1.11 are sequentially installed in the other end of the fixing seat 1.

During installation, the fixing seat 1.1 and the connecting shaft 1.3 are taken, the connecting shaft 1.3 is fixed on the fixing seat 1.1 by using an M5 hexagon socket head cap screw 1.9, the handle 1.4 is screwed into the corresponding position of the fixing seat 1.1, the clamping block A1.2, the bolt 1.5, the spring 1.6 and the spring sleeve 1.7 are taken, then the bolt 1.5, the spring 1.6 and the spring sleeve 1.7 are sequentially installed on the clamping block A1.2 and fixed by using an M4 hexagon socket head cap screw 1.15, the clamping block A1.2 is installed on the fixing seat 1.1 and fixed by using an M5 hexagon socket head cap screw 1.9, the bolt 1.5 is sleeved by taking the pull ring 1.14, and the pull ring 1.14 is sleeved by the pull ring 1.13;

a spring 1.10 and a 5 multiplied by 15 pin 1.11 are taken and sequentially arranged in a fixed 1.1 seat, a clamping block B1.12 is arranged on the 5 multiplied by 15 pin 1.11, and a locking screw 1.8 is taken and arranged on a fixed seat 1.1. One end of the clamping block B1.12 is provided with a small boss which is matched with the shape of the small groove on one side of the thyristor.

The thyristor replacement tool and method related to the embodiment comprise the following steps:

and (1) placing a thyristor replacing tool at a proper position of the valve tower, aligning the thyristor placing position 10 in the valve tower, lifting the rotating nut to rotate for 90 degrees, then rotating the locking nut, rotating the rotating nut to drive the rod body to rotate, and rotating the pull rod for 90 degrees so that the limiting part clamps the valve tower and then fixing the valve tower through the locking nut. As shown in fig. 8. Locking nut

And (2) loosening the locking screw on the thyristor fixing piece to loosen the clamping block B, pulling up the handle to move one end of the fixing seat along the outer diameter of the thyristor, manually inserting the bolt into the small hole on the edge of the thyristor, aligning the small groove on the other edge of the thyristor with the small boss on the clamping block B, and screwing the locking screw to fix the thyristor. As shown in fig. 9. And a rotating speed adjusting button is also arranged on the shell to realize speed adjustment.

And the clamping block B is automatically released by loosening the locking screw. And pulling the handle to enable the fixed seat to be placed in a corresponding position on the valve plate, loosening the pull ring, and moving the fixed seat along the outer diameter of the valve plate until the bolt is automatically inserted into a 4MM small hole of the valve plate. The small groove on the other edge of the valve plate is aligned with the small boss of the other clamping block B, and the screw is screwed down to fix the valve plate on the tool. Otherwise, the valve plate is released.

Step (3), lifting the sliding sleeve on the push rod, pressing down the descending button, inserting the connecting shaft of the thyristor fixing piece into a proper position in the connecting sleeve on the push rod, and loosening the sliding sleeve to connect the thyristor fixing piece and the push rod together; the thyristor can be taken out from the valve tower by pressing down the ascending button; when the thyristor moves to a proper position, the sliding sleeve is lifted, the connecting shaft is pulled out, and the thyristor fixing piece is separated from the push rod. As shown in fig. 10.

The thyristor replacement tool of the embodiment has the maximum external dimension of 787X291X87 (MM), the working part of the tool is hardened, and the surface of the tool is subjected to processes such as chromium plating, anodic oxidation and the like, so that the tool is attractive. The tool material is designed by using light weight materials such as aluminum alloy, plastic and the like as much as possible, so that the tool weight is reduced and is only 4.75 kilograms. The maximum thrust of the tool is 50 kg, the speed is 10MM per second, and the speed is adjusted by 0-10MM through the speed adjusting button. The tool uses electric energy as a working medium, the motor drives the thread pair to convert the rotary motion into linear motion, so that the rising and falling speed regulation of the push rod is convenient, and the layout and the operation are easy. The clamping, loosening and automatic positioning of the thyristor are realized by utilizing the rotary motion of the threads and the reset function of the spring. Through the connection of the anti-falling chain, the parts which are easy to fall off of the tool are connected together with the tool, so that the parts of the tool are prevented from falling. The automatic positioning mechanism on the clamping block is utilized to realize the rapid positioning and clamping with the valve plate.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A thyristor replacement tool, comprising: the thyristor replacing tool is fixed on a valve tower through the support with the pull rods arranged on two sides, and a thyristor is fixed through the thyristor fixing piece.

2. The thyristor replacement tool of claim 1, wherein: the motor drives the push rod to move up and down, and one end of the shell is provided with an ascending button and a descending button.

3. The thyristor replacement tool of claim 1, wherein: the support includes the fixed bolster, and the pull rod includes the body of rod and locates body of rod one end and be equipped with the locating part, and the body of rod embolias the fixed bolster in, and the fixed bolster overlaps fixedly in the standpipe, and standpipe one end is equipped with lock nut and the swivel nut who links to each other with the body of rod, and wherein swivel nut drives the body of rod and rotates, and lock nut locks swivel nut.

4. The thyristor replacement tool of claim 3, wherein: one end of the vertical pipe is matched with the valve tower in shape.

5. The thyristor replacement tool of claim 1, wherein: the thyristor fixing piece is fixed on the push rod through the connecting sleeve and the sliding sleeve.

6. The thyristor replacement tool of claim 1, wherein: thyristor mounting includes the fixing base, fixing base one end shape and thyristor appearance match, the fixing base other end is equipped with the connecting axle, the connecting axle is connected with push rod one end, fixing base one side is equipped with and presss from both sides tight piece A, it has the bolt to insert on the tight piece A of clamp, bolt one end is equipped with gets pull ring and handle, it is equipped with the spring to get the pull ring and press from both sides between the tight piece A, it is equipped with the spring housing to get pull ring one end, the bolt is located fixing base lower extreme one side, the fixing base opposite side is equipped with and presss from both sides tight piece B, spring and 5x 15 round pins are packed into in the fixing base.

7. The thyristor replacement tool of claim 6, wherein: one end of the clamping block B is provided with a small boss which is matched with the shape of the small groove on one side of the thyristor.

8. The thyristor replacement tool of claim 6, wherein: handles are arranged on the other two sides of the fixed seat.

9. The thyristor replacement tool of claim 6, wherein: anti-falling chains are arranged between the thyristor fixing part and the supports and between the locking screws of the two supports and the supports.