A transport buffer impact stop device for an extra-high voltage large-capacity transformer and a mounting method thereof

Abstract

The application provides a special high-voltage large-capacity transformer transport buffer impact stop device, which comprises a fixing support, a gasket, a stop device and a fastener; the fixing support is a stair type structure, comprising a first clamping part, a connecting part and a second clamping part; the gasket is provided with a buffer strip at one end facing the transformer; the stop device comprises a stop wrench and a stop disc; the gasket is located between the first clamping parts of two oppositely placed fixing supports and is fastened through the fastener; the stop wrench is connected with the stop disc through a threaded hole provided on the second clamping part. The application realizes coarse adjustment and fine adjustment functions through the stop device and the gasket, has multiple transport vehicle use conditions, is provided with the buffer strip at one end facing the transformer, avoids hard contact between the transformer and the device to cause damage of the transformer, and forms a buffer and stop dual-function system, thereby effectively protecting the transformer from great impact during transportation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transformers, and particularly relates to a transportation buffer impact stop device for an extra-high voltage large-capacity transformer and a mounting method. BACKGROUND

[0002] With the continuous development of power transmission projects in China, the power grid transmission voltage is continuously improved. In recent years, the state has vigorously promoted large-capacity power transmission projects, and extra-high voltage large-capacity transformers are gradually applied to engineering construction. At the same time, with the remoteness of engineering construction sites in recent years, the complexity of transportation conditions also puts higher requirements on the transportation stability performance of extra-high voltage large-capacity transformers.

[0003] After the capacity of the extra-high voltage transformer is improved, the transportation weight of the transformer is increased, which is a great test of the stability of the transformer transportation. The traditional transportation method only relies on the static friction force formed between the weight of the transformer body and the transportation beam to maintain stability, and the stability performance is poor, and the safety cannot be guaranteed.

[0004] Under the increasing transportation weight, a more secure and reliable transportation fixing device has become a difficult problem to be solved. SUMMARY

[0005] To solve the above technical problems, the application provides a transportation buffer impact stop device for an extra-high voltage large-capacity transformer and a mounting method to solve the above technical problems.

[0006] The first aspect of the application discloses a transportation buffer impact stop device for an extra-high voltage large-capacity transformer, comprising:

[0007] A transportation buffer impact stop device for an extra-high voltage large-capacity transformer comprises a fixing support, a gasket, a stop device, and a fastener;

[0008] The fixing support is a stair type structure, comprising a first clamping part, a connecting part, and a second clamping part;

[0009] One end of the gasket facing the transformer is provided with a buffer strip;

[0010] The stop device comprises a stop wrench and a stop disc;

[0011] The gasket is located between the first clamping parts of two oppositely placed fixing supports and is fastened by the fastener, and the stop wrench is connected to the stop disc by penetrating the threaded hole provided on the second clamping part.

[0012] According to the device of the first aspect of the application, the gasket comprises a first gasket and a second gasket, and the thickness of the first gasket is greater than that of the second gasket.

[0013] The buffer strip is arranged on the first gasket.

[0014] The buffer strip is made of plastic metal material.

[0015] The first gasket and the buffer strip are connected through a male-female groove.

[0016] In the male-female groove connection, the first gasket is provided with a convex groove, and the buffer strip is provided with a concave groove.

[0017] The stop disc is made of high-strength metal material with large friction coefficient.

[0018] The first clamping part has the same width as the connecting part, and the second clamping part has a width greater than that of the first clamping part.

[0019] The fastening through the fastener is fastening through a bolt.

[0020] The second aspect of the present application discloses a mounting method of a special high-voltage large-capacity transformer transport buffer impact stop device, which comprises:

[0021] Step 1, the stop wrench is screwed into and passes through the second clamping part through the threaded hole on the second clamping part and is connected with the stop disc;

[0022] Step 2, the buffer strip is inserted on the gasket through the male-female groove, and the buffer strip faces one end of the placed transformer;

[0023] Step 3, the matching positions of the two fixed supports and the transformer transport beam are adjusted through the plurality of gaskets, and the two fixed supports and the plurality of gaskets are fastened and connected in the position close to the transformer through the fastener;

[0024] Step 4, adjust and tighten a plurality of stop wrenches to drive a plurality of stop discs to clamp the transformer transport beam.

[0025] According to the method of the second aspect of the present application, the gasket comprises a first gasket and a second gasket, and the thickness of the first gasket is greater than that of the second gasket.

[0026] The buffer strip is arranged on the first gasket.

[0027] The buffer strip is made of plastic metal material.

[0028] The first gasket and the buffer strip are connected through a male-female groove.

[0029] According to the method of the second aspect of the present application, the first gasket is provided with a convex groove, and the buffer strip is provided with a concave groove.

[0030] According to the method of the second aspect of the present application, the stop disc is made of a high-strength metal material with a large friction coefficient.

[0031] According to the method of the second aspect of the present application, the first clamping portion has the same width as the connecting portion, and the second clamping portion has a width greater than that of the first clamping portion.

[0032] According to the method of the second aspect of the present application, the fastening by the fastener is fastening by a bolt.

[0033] In summary, the scheme of the present application has a significant stopping effect on the transportation of an ultra-high voltage large-capacity transformer. Due to the use of a stop disc with a large friction coefficient, the transportation safety performance is stable; due to the thickness adjustment performance of the transportation fixing device, the use range is wide; the use of a plastic buffer metal plate increases the impact buffering effect. Compared with the traditional transportation fixing measures, this structure has the advantages of easy installation and cost saving. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0035] Figure 1 It is an assembly view of an ultra-high voltage large-capacity transformer transportation impact buffering and stopping device according to an embodiment of the present application.

[0036] Figure 2 It is an exploded view of an ultra-high voltage large-capacity transformer transportation impact buffering and stopping device according to an embodiment of the present application.

[0037] Figure 3 It is a partial enlarged view of a gasket and a buffer strip of an ultra-high voltage large-capacity transformer transportation impact buffering and stopping device according to an embodiment of the present application.

[0038] Figure 4 It is a sectional view of a gasket and a buffer strip of an ultra-high voltage large-capacity transformer transportation impact buffering and stopping device according to an embodiment of the present application.

[0039] Figure 5 It is a flowchart of an installation method of an ultra-high voltage large-capacity transformer transportation impact buffering and stopping device according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] A first aspect of the present application discloses a buffer stop device for transporting extra-high voltage large-capacity transformers. As shown in Figure 1 and Figure 2 The device comprises:

[0042] a fixed support 1, a gasket 2, a stop device 3 and a fastener 4;

[0043] In the assembled state as shown in Figure 1 , two fixed supports 1 in a stair structure are arranged on the two sides of the transformer transport beam respectively, the fixed support 1 comprises a first clamping part 101, a connecting part 102 and a second clamping part 103, wherein the connecting part 102 is arranged on the upper surface of the transformer transport beam, and the second clamping part 103 is arranged on the two side uprights of the transformer transport beam. At this time, due to the different widths of the transformer transport beams used each time, there must be gaps of different sizes between the first clamping parts 101 of the upper parts of the two fixed supports 1. At this time, some gaskets 2 are needed to fill these gaps. In the present embodiment, the gaskets 2 are rectangular or square gaskets 2. Of course, the gaskets 2 are not limited to these two shapes, and can also be other shapes. When the gaps between the first clamping parts 101 of the upper parts of the two fixed supports 1 are filled with the gaskets 2, the fastener 4 is used to clamp the first clamping parts 101 of the two opposite fixed supports 1, as shown in Figure 1 and Figure 2As shown, the fastener 4 used in the embodiment is a bolt 401 which passes through the through holes provided on the corresponding positions of the first clamping part 101 and the gasket 2, and clamps the two opposite fixing supports 1 by tightening the nut. At this time, since the clamping force is only applied to the upper end of the fixing support 1, that is, the first clamping part, the clamping force of the second clamping part 103 on the transformer transport beam gradually decreases from top to bottom, and the ultra-high voltage large-capacity transformer transport buffer impact stop device cannot be firmly fixed on the transformer transport beam. Therefore, a plurality of stop devices 3 composed of a stop wrench 301 and a stop disc 302 are arranged on the bottom of the fixing support 1, that is, the second clamping part 103. The stop wrench 301 is connected to the stop disc 302 by passing through the threaded hole provided on the second clamping part 103. By using a wrench to screw the stop wrench 301, the stop disc 302 is continuously pushed towards the transformer transport beam, and a certain clamping force is applied to the transport beam at the lower end of the fixing support 1, so as to ensure that the fixing support 1 is firmly fixed on the transformer transport beam. Further, since the transformer will produce a certain displacement due to various reasons when placed on the transport beam for transportation, the transformer will collide with the first clamping part 101 of the fixing support 1, causing certain damage to the transformer. Therefore, a buffer strip 203 is arranged on the end of the gasket 2 facing the transformer to serve as a buffer when the collision occurs, thereby protecting the transformer from damage.

[0044] According to the device of the first aspect of the present application, since the use of gaskets 2 of uniform thickness alone cannot necessarily fill the gap between the first clamping parts 101 of the upper portions of the two fixing supports 1, the gaskets 2 are produced in two or more thicknesses. The gaskets 2 in the embodiment include first gaskets 201 and second gaskets 202. The first gaskets 201 are selected to be relatively thick, and the second gaskets 202 are selected to be relatively thin. The thickness of the first gaskets 201 is greater than that of the second gaskets 202. When a plurality of first gaskets 201 are placed to just fill the gap between the first clamping parts 101 of the upper portions of the two fixing supports 1, the second gaskets 202 can not be placed. If there is a gap after placing a plurality of first gaskets 201, and the gap is smaller than the thickness of the first gaskets 201, a plurality of second gaskets 202 which are relatively thin can be placed to fill the gap, so as to ensure that the first clamping parts 101 of the two fixing supports 1 can provide more reliable clamping force.

[0045] According to the device of the first aspect of the present application, the buffer strip 203 is arranged on the first gasket 201. The first gasket 201 is selected to be a steel metal plate which is not easy to deform under impact and can be repeatedly used, thereby saving cost. The buffer strip 203 is selected to be a plastic metal material which can deform to avoid damage to the transformer when the impact occurs. The first gasket 201 and the buffer strip 203 are connected through male and female grooves. Figure 3 andFigure 4 As shown, the first gasket 201 is provided with a convex groove, and the buffer strip 203 is provided with a concave groove, so that the first gasket 201 and the buffer strip 203 are connected through the male and female grooves, and the buffer strip 203 can be easily disassembled and discarded after being deformed by impact, and a new buffer strip 203 can be installed for next use.

[0046] According to the device of the first aspect of the present application, the stop disc 302 is made of a high-strength metal material with a large friction coefficient, and can provide a large enough clamping force and friction force for the lower part of the fixing support 1, that is, the second clamping part 102.

[0047] According to the device of the first aspect of the present application, in the embodiment, the width of the first clamping part 101 is the same as that of the connecting part 102, and the width of the second clamping part 103 is greater than that of the first clamping part 101, so that the whole fixing support 1 has a fin-shaped structure, and can save more materials and use space while providing a large enough clamping force and friction force.

[0048] The second aspect of the present application discloses a mounting method of a special high-voltage large-capacity transformer transportation buffer impact stop device, which is used for mounting the special high-voltage large-capacity transformer transportation buffer impact stop device disclosed in the first aspect of the present application. Figure 5 As shown, the mounting method specifically comprises the following steps:

[0049] Step 1, the stop wrench 301 is screwed into and passes through the second clamping part 103 through the threaded hole on the second clamping part 103 and is connected with the stop disc 302;

[0050] Step 2, the buffer strip 203 is inserted on the gasket 2 through the male and female grooves, and the buffer strip 203 faces one end of the transformer;

[0051] Step 3, the matching positions of the two fixing supports 1 and the transformer transportation beam are adjusted through the plurality of gaskets 2, and the two fixing supports 1 and the plurality of gaskets 2 are fastened and connected at the positions close to the transformer through the fasteners 4;

[0052] Step 4, the stop wrenches 301 are adjusted and tightened, and the stop discs 302 are driven to clamp the transformer transportation beam.

[0053] According to the method of the second aspect of the present application, the gasket 2 comprises a first gasket 201 and a second gasket 202, and the thickness of the first gasket 201 is greater than that of the second gasket 202.

[0054] According to the method of the second aspect of the present application, the buffer strip 203 is arranged on the first gasket 201.

[0055] According to the method of the second aspect of the present application, the buffer strip 203 is made of a plastic metal material.

[0056] According to the method of the second aspect of the present application, the first gasket 201 and the buffer strip 203 are connected through a male-female groove connection.

[0057] According to the method of the second aspect of the present application, in the male-female groove connection, the first gasket 201 is provided with a male groove, and the buffer strip 203 is provided with a female groove.

[0058] According to the method of the second aspect of the present application, the stop disc 302 is made of a high-strength metal material with a large friction coefficient.

[0059] According to the method of the second aspect of the present application, the first clamping part 101 and the connecting part 102 have the same width, and the width of the second clamping part 103 is greater than that of the first clamping part 101.

[0060] According to the method of the second aspect of the present application, the fastening through the fastener 4 is fastening through a bolt 401.

[0061] In summary, the scheme of the present application has good buffering and significant stopping effect for the transportation of extra-high voltage large-capacity transformers. Due to the use of a stop disc with a large friction coefficient, the transportation safety performance is stable. Due to the thickness adjustment performance of the transportation fixing device, the use range is wide. The use of plastic buffer metal plate increases the impact buffering effect. Compared with the traditional transportation fixing measures, this structure has the advantages of easy installation and cost saving.

[0062] Please note that the technical features of the above embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application. The above embodiments only express several implementation ways of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A method for installing a shock stopper for a UHV large capacity transformer transport buffer, characterized by, The extra-high voltage large-capacity transformer transportation buffer stop device comprises a fixed support (1), a gasket (2), a stop device (3) and a fastener (4); The fixed support (1) is a stair structure, comprising a first clamping part (101), a connecting part (102) and a second clamping part (103); The gasket (2) is provided with a buffer strip (203) at one end facing the transformer; The stop device (3) comprises a stop wrench (301) and a stop disc (302); The gasket (2) is located between the first clamping parts (101) of the two oppositely placed fixed supports (1) and is fastened by the fastener (4), the stop wrench (301) connects the stop disc (302) by passing through the threaded hole provided on the second clamping part (103); The gasket (2) comprises a first gasket (201) and a second gasket (202), the thickness of the first gasket (201) is greater than that of the second gasket (202); The buffer strip (203) is provided on the first gasket (201); The installation method specifically comprises: Step 1, the stop wrench (301) is screwed into and passes through the second clamping part (103) through the threaded hole on the second clamping part (103) and is connected with the stop disc (302); Step 2, the buffer strip (203) is inserted on the gasket (2) through the male and female grooves, and the buffer strip (203) faces the end where the transformer is placed; Step 3, the matching positions of the two fixed supports (1) and the transformer transportation beam are adjusted by the plurality of gaskets (2), and the two fixed supports (1) and the plurality of gaskets (2) are fastened and connected at the position close to the transformer by the fastener (4); Step 4, adjust and tighten the stop wrenches (301), and drive the stop discs (302) to clamp the transformer transportation beam.

2. The installation method of the transport buffer stop device for an extra-high voltage large capacity transformer according to claim 1, characterized in that, The buffer strip (203) is made of plastic metal material.

3. The installation method of the transport buffer stop device for an extra-high voltage large capacity transformer according to claim 2, characterized in that, The first gasket (201) and the buffer strip (203) are connected through the male and female grooves.

4. The installation method of the transport buffer stop device for an extra-high voltage large capacity transformer according to claim 3, characterized in that, In the male and female groove connection, the first gasket (201) is provided with a convex groove, and the buffer strip (203) is provided with a concave groove.

5. The installation method of the transport buffer stop device for an extra-high voltage large capacity transformer according to claim 1, characterized in that, The stop disc (302) is made of high-strength metal material with large friction coefficient.

6. The installation method of the transport buffer stop device for an extra-high voltage large capacity transformer according to claim 1, characterized in that, The width of the first clamping part (101) and the connecting part (102) is the same, and the width of the second clamping part (103) is greater than that of the first clamping part (101).

7. The installation method of the transport buffer stop device for an extra-high voltage large capacity transformer according to claim 1, characterized in that, The fastening by the fastener (4) is fastening by the bolt (401).

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