CN103769787B - A kind of oil tank of transformer welded top ground adjustable supports method and device of diving - Google Patents

Abstract

The invention relates to a submerged adjustable support method and device for welding the top of a transformer oil tank, and belongs to the technical field of transformer production. The technical solution is: the top of the inner screw rod (2) is provided with a V-shaped bracket (12), and the bottom end is provided with a stop pad (3), and is screwed into the inner screw rod female (1), and the inner screw rod female (1) Fixed on the upper end of the outer screw rod (4), the outer screw rod (4) is screwed into the outer screw rod nut (8), the outer screw rod nut (8) is fixed on the upper end of the square tube (9), the outer screw rod nut (8) The upper end is flat with the ground (7), the square pipe (9) dives into the ground (7), and the lower end of the square pipe (9) is fixed on the chassis (10). When in use, rotate the inner screw rod counterclockwise and drive the outer screw rod to rotate to obtain the required lifting height. When not in use, through the respective rotations of the inner screw mandrel and the outer screw mandrel, it sneaks into the ground. The invention does not occupy the workshop area, saves space, has simple structure, is convenient to use, improves labor efficiency, and reduces labor intensity of workers.

Description

Submerged adjustable support method and device for welding the top of transformer oil tank

technical field

The invention relates to a submerged adjustable support method and device for welding the top of a transformer oil tank, in particular to a support device for welding a transformer oil tank or top cover, and belongs to the technical field of transformer production.

Background technique

The top of some transformer oil tanks has a symmetrical oblique shape, and the angle of the oblique angle is 15° to 35°. During welding, the operator generally uses the support frame to support the transformer oil tank or the top cover of the transformer in a horizontal state, which is beneficial to the welding operation. The traditional device for supporting the transformer oil tank is to manufacture a support frame for adjusting the angle and place it on the ground. The angle support frame is huge and weighs several tons. When it is in use, it needs to be transported by a crane. When it is not in use, it also occupies about 20 square meters of floor area in the workshop, occupying the space in the workshop.

Contents of the invention

The purpose of the present invention is to provide a submerged adjustable support method and device for welding the top of a transformer oil tank. Through the respective rotations of the inner screw rod and the outer screw rod, the height that needs to be raised is obtained, and it is screwed into the ground when not in use, so as to solve the problems in the background technology. Existing problems.

Technical scheme of the present invention is:

A submerged adjustable support device for welding the top of a transformer oil tank, including an inner screw nut, an inner screw rod, a stop pad, an outer screw rod, an outer screw rod nut, a square tube, a chassis and a V-shaped bracket, and the inner screw rod There is a V-shaped bracket on the top, and a stop flat pad on the bottom, which is screwed into the inner screw nut. The inner screw nut is fixed on the upper end of the outer screw rod, and the outer screw rod is screwed into the outer screw nut. It is fixed on the upper end of the square tube, the upper end of the outer screw rod is flat with the ground, the square tube dives into the ground, and the lower end of the square tube is fixed on the chassis.

The brackets on both sides of the V-shaped bracket are provided with bolt holes. It is used to fasten the transformer oil tank or transformer top cover that needs to be welded.

The transformer oil tank is fixed on the V-shaped support.

A submerged adjustable support method for welding the top of a transformer oil tank, comprising the following steps: ①Using a submerged adjustable support device, the device includes an inner screw nut, an inner screw rod, a stop pad, an outer screw rod, and an outer screw rod. Screw nut, square tube, chassis and V-shaped bracket, the top of the inner screw rod is equipped with a V-shaped bracket, and the bottom end is provided with a stop flat pad, which is screwed into the inner screw nut, and the inner screw nut is fixed on the upper end of the outer screw rod , the outer screw rod is screwed into the outer screw nut, the outer screw nut is fixed on the upper end of the square tube, the upper end of the outer screw nut is flat with the ground, the square tube submerges into the ground, and the lower end of the square tube is fixed on the chassis; ②The device is made of concrete It is poured underground to form a permanent fixed facility. When in use, use the bolt hole on the V-shaped bracket at the upper end of the inner screw rod as a point of force, insert a round steel to rotate the inner screw rod, and the inner screw rod and outer screw rod rotate simultaneously. Respectively rotate to obtain the height exposed to the ground, and then fix the edge of the transformer oil tank or the top cover of the transformer on the V-shaped bracket at the upper end of the inner screw rod for welding; ③ When not in use, rotate the inner screw rod clockwise to drive Rotate the outer screw mandrel to obtain the height that needs to be lowered until the top surface of the inner screw mandrel is flat with the ground, so that the device is submerged underground. It does not occupy the workshop area, saves space, has a simple structure, is easy to use, improves labor efficiency, and reduces labor intensity of workers.

After the inner screw rod runs to the required height, one edge of the supported workpiece is stuck in the V-shaped groove of the V-shaped bracket at the upper end of the inner screw rod, so that the inner screw rod is no longer rotated.

After the outer screw nut is welded to the square pipe, the top surface of the outer screw nut is flat with the ground, and it is poured underground with concrete to become a permanent tooling facility.

In order to operate and run quickly, the threads of the inner screw rod and the outer screw rod are made into double threads.

The invention has the beneficial effects of not occupying the area of the workshop, saving space, having a simple structure, being convenient to use, improving labor efficiency, and reducing labor intensity of workers.

Description of drawings

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

Fig. 2 is a schematic diagram after the present invention dives into the ground;

Fig. 3 is a partial enlarged view of the present invention;

Fig. 4 is a sectional view of the female screw rod of the present invention;

Figure 5 is a top view of Figure 4;

Fig. 6 is a sectional view of the inner screw rod of the present invention;

Figure 7 is a top view of Figure 6;

Fig. 8 is a cross-sectional view of the outer screw rod of the present invention;

Fig. 9 is a top view of Fig. 8;

Fig. 10 is a sectional view of the outer screw rod of the present invention;

Figure 11 is a top view of Figure 10;

Fig. 12 is the A-A sectional view of Fig. 2;

Fig. 13 is the front view of square tube of the present invention;

Figure 14 is a top view of Figure 13;

In the figure: inner screw rod female 1, inner screw rod 2, stop pad 3, outer screw rod 4, transformer oil tank 5, transformer top cover 6, ground 7, outer screw rod female 8, square tube 9, chassis 10, Bolt 11, V-shaped bracket 12.

Detailed ways

Below in conjunction with accompanying drawing, the present invention will be further described by examples.

A submerged adjustable support device for welding the top of a transformer oil tank, comprising an inner screw rod 1, an inner screw rod 2, a stop pad 3, an outer screw rod 4, an outer screw rod female 8, a square tube 9, a chassis 10 and V-shaped bracket 12, the top of the inner screw rod 2 is welded to the V-shaped bracket 12, the brackets on both sides of the V-shaped bracket 12 are provided with bolt holes, and the bottom end is provided with a stop flat pad 3, which is screwed into the inner screw rod female 1, and the stop position The function of the flat pad 3 is to restrict the inner screw rod 2 from being screwed up to the top, and the inner screw rod female 1 cannot be unscrewed. The upper end of the outer screw rod 4 is screwed into the outer screw rod female 8, the outer screw rod female 8 is welded on the upper end of the square pipe 9, the top surface of the outer screw rod female 8 is flat with the ground, and is poured underground with concrete, and the lower end of the square pipe 9 Be welded on the square iron plate that is bigger than square pipe section size, make outer screw mandrel female 8 and square pipe 9 firmly poured in the ground by concrete, can not be pulled out.

A submerged adjustable support method for welding the top of a transformer oil tank, comprising the following steps: ①Using a submerged adjustable support device, the device includes an inner screw nut 1, an inner screw rod 2, a stop flat pad 3, an outer wire Rod 4, outer screw rod female 8, square tube 9, chassis 10 and V-shaped bracket 12, the top of the inner screw rod is provided with a V-shaped bracket, the bottom end is provided with a stop flat pad, and screwed into the inner screw rod female, the inner wire The rod nut is fixed on the upper end of the outer screw rod, the outer screw rod is screwed into the outer screw rod female rod, the outer screw rod female rod is fixed on the upper end of the square tube, the upper end of the outer screw rod female rod is flat with the ground, the square tube dives into the ground, and the lower end of the square tube is fixed on the on the chassis; 2. the device is poured underground with concrete to form a permanent fixed facility. When in use, use the bolt hole on the V-shaped bracket 12 at the upper end of the inner screw rod 2 as a point of force, insert the round steel to rotate the inner screw rod 2, The inner screw mandrel 2 and the outer screw mandrel 4 rotate at the same time, through their respective rotations, the height exposed to the ground is obtained, and then the edge of the transformer oil tank 5 or the transformer top cover 6 is fixed on the V-shaped bracket 12 at the upper end of the inner screw mandrel for welding; ③ When not in use, rotate the inner screw rod 2 clockwise and drive the outer screw rod 4 to obtain the height to be lowered until the top surface of the inner screw rod 2 is level with the ground, so that the device can be submerged underground.

After the inner screw mandrel moves to the required height, rely on an edge of the supported workpiece to be stuck in the V-shaped groove of the V-shaped bracket at the upper end of the inner screw mandrel 2, so that the inner screw mandrel 2 is no longer rotated.

Outer screw mandrel female 8 is welded behind square pipe 9, and the top surface of outer screw mandrel female is flat with the ground, is poured underground with concrete, becomes permanent tooling facility.

In order to operate and run quickly, the threads of the inner screw rod and the outer screw rod are made into double threads.

More specific implementation: after the inner screw rod 2 is screwed into the inner screw rod female 1, a stop flat pad 3 is installed. The function of the stop flat pad 3 is to prevent the inner screw rod 2 from being screwed out when the inner screw rod 2 is screwed up to the top. 1. Immediately re-rotating, only the outer screw rod 4 can be rotated upwards, as shown in Figure 1.

Use the bolt hole next to the V-shaped bracket 12 at the upper end of the inner screw 2, as shown in Figures 6-7, as a force point, insert the round steel to manually rotate the inner screw 2, and both the inner screw 2 and the outer screw can be rotated. Through the respective rotations, the height exposed to the ground and the requirement of being level with the ground after burrowing are obtained, see Figure 1-2.

3. The V-shaped bracket 12 at the upper end of the inner screw rod 2 is provided with a V-shaped groove for carrying the edge of the transformer oil tank 5. Since the V-shaped groove is pressed by the straight edge of the transformer oil tank 5, the inner wire Rod 2 can no longer be rotated, and ordinary bolts are used to pass through the existing bolt holes beside the V-shaped groove and the existing holes along the edge of the transformer oil tank 5, as shown in Figure 6-7, to carry out connection and fastening, as shown in Figure 3, After the connection is fastened, the present invention and the fuel tank body form a stable integrated structure, which ensures that operators can work safely on the horizontal surface of the top of the fuel tank.

The top cover rides on the inner screw mandrel 2 upper ends and just can be welded construction.

The outer screw nut 8 is welded on the upper end of the square tube 6 and poured underground together. Since the lower end of the square tube is welded with a square iron plate larger than the cross-sectional size of the square tube, the outer screw nut 8 and the square tube 6 will be firmly covered by the concrete. Pouring in the ground, will not be pulled out, to achieve the purpose of safe construction, see Figure 1 - Figure 2, Figure 12.

When the present invention is not used, the inner screw rod 2 is rotated downward, and when the inner screw rod female 1 is pressed, the inner screw rod female 1 will drive the outer screw rod 4 to also rotate downward until the top surface of the inner screw rod 2 is flush with the concrete floor Flat, see Figure 2.

Claims (6)

1. A submerged adjustable support device for welding the top of a transformer oil tank, characterized in that it includes an inner screw nut (1), an inner screw rod (2), a stop pad (3), an outer screw rod (4), Outer screw nut (8), square tube (9), chassis (10) and V-shaped bracket (12), the top end of the inner screw rod (2) is provided with a V-shaped bracket (12), and the bottom end is provided with a stop pad (3), and screw into the inner screw nut (1), the inner screw nut (1) is fixed on the upper end of the outer screw rod (4), the outer screw rod (4) is screwed into the outer screw rod nut (8), and the outer screw rod (8) The screw nut (8) is fixed on the upper end of the square tube (9), the upper end of the outer screw nut (8) is flat with the ground (7), the square tube (9) submerges into the ground (7), and the lower end of the square tube (9) is fixed on on the chassis (10). 2. The underground adjustable supporting device for welding the top of the transformer oil tank according to claim 1, characterized in that bolt holes are provided on the brackets on both sides of the V-shaped bracket (12). 3. The underground adjustable support device for welding the top of the transformer oil tank according to claim 1, characterized in that the transformer oil tank (5) is fixed on the V-shaped bracket (12). 4. A submerged adjustable support method for welding the top of a transformer oil tank, characterized in that it includes the following steps: ① using a submerged adjustable support device, which includes an inner screw nut (1), an inner screw rod (2 ), stop pad (3), outer screw rod (4), outer screw rod nut (8), square tube (9), chassis (10) and V-shaped bracket (12), the top of the inner screw rod is provided with a V Shaped bracket, the bottom end is provided with a stop flat pad, and screwed into the inner screw nut, the inner screw nut is fixed on the upper end of the outer screw rod, the outer screw rod is screwed into the outer screw nut, and the outer screw nut is fixed on the square tube The upper end, the upper end of the outer screw nut is flat with the ground, the square tube is submerged into the ground, and the lower end of the square tube is fixed on the chassis; ②The device is poured in the ground with concrete to form a permanent fixed facility. When in use, use the inner screw rod (2 ) The bolt hole on the V-shaped bracket (12) at the upper end is used as a point of force, and the round steel is inserted to rotate the inner screw rod (2). The inner screw rod (2) and the outer screw rod (4) rotate simultaneously, and through their respective rotations, Then fix the edge of the transformer oil tank (5) or the top cover of the transformer (6) on the V-shaped bracket (12) at the upper end of the inner screw rod for welding; ③ When not in use, rotate the inner wire clockwise Rod (2), and drives the rotation outer screw mandrel (4), obtains the height that needs to descend, until the top surface of inner screw mandrel (2) is flat with the ground, makes this device submerge underground. 5. The underground adjustable support method for welding the top of the transformer oil tank according to claim 4, characterized in that: after the inner screw rod runs to the required height, it is stuck on the inner screw rod (2) by one edge of the supported workpiece In the V-shaped groove of the V-shaped bracket at the upper end, the inner screw mandrel (2) is restricted from rotating any longer, and the threads of the inner screw mandrel and the outer screw mandrel are made into two-thread threads. 6. The underground adjustable support method for welding the top of the transformer oil tank according to claim 4 or 5, characterized in that: after the outer screw nut (8) is welded to the square tube (9), the top surface of the outer screw nut It is level with the ground and poured into the ground with concrete to become a permanent tooling facility.