Large power transformer hydraulic propulsion device

Abstract

The utility model relates to a large -scale power transformer hydraulic propulsion device belongs to power transformer installation construction technical field. Including transformer base and two groups of mutually parallel and interval setting horizontal steel rail, horizontal steel rail is supported on transformer base through steel rail support spare, the other end of horizontal steel rail is supported on the transport car body, the horizontal steel rail between transport car body and steel rail support spare is suspended and sets up, this overhanging section is supported through the suspension rail support placed on the ground, one group of push -and -go machine that respectively sets up on each group horizontal steel rail pushes the power transformer and walks along the horizontal steel rail length direction. Advantageous effect: compared with using traditional construction technology, has reduced mechanical investment, has saved hoisting cost, has reduced engineering cost, has accelerated construction progress, has eliminated the security hidden danger effectively also, has overcome the construction difficulty that large -scale hoisting machinery cannot enter in the narrow space of transformer area, has obtained good application effect, and the popularization value is remarkable.

Description

Technical Field

[0001] This utility model relates to a hydraulic propulsion device for a large power transformer, belonging to the field of power transformer installation and construction technology. Background Technology

[0002] Large transformers in coal-fired power plants are mainly used to step up or step down the high-voltage electrical energy generated by generators to meet the needs of power transmission or users.

[0003] Large power transformers play a vital role in power systems. However, current technology is not comprehensive and has the following drawbacks: large power transformers are generally heavy, and the requirements for impact and tilting of the transformer body are high during transportation and installation. Moreover, the installation location is basically indoors or in a corresponding space with limited space, making it inconvenient for large lifting machinery to approach, thus hindering the construction of large power transformers.

[0004] To solve one of the above problems, there is an urgent need for a hydraulic propulsion device for large power transformers. Utility Model Content

[0005] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to use a pusher to slide the power transformer from above the transport vehicle along the horizontal steel rail to above the transformer foundation, stop pushing after it is in place, dismantle the pusher, and then proceed with the next step of installation of the power transformer. This overcomes the construction difficulties of the narrow space in the transformer area and the inability of large lifting machinery to enter. Therefore, a large power transformer hydraulic propulsion device is provided.

[0006] The large power transformer hydraulic propulsion device of this utility model includes a transformer foundation and two sets of parallel and spaced horizontal steel rails. The horizontal steel rails are supported on the transformer foundation by steel rail support members, and the other end of the horizontal steel rails is supported on the transport vehicle body. The horizontal steel rails between the transport vehicle body and the steel rail support members are suspended in the air. The suspended section is supported by a suspension rail support placed on the ground. Each set of horizontal steel rails is equipped with a pusher that propels the power transformer along the length of the horizontal steel rails.

[0007] Compared with traditional construction techniques, this method reduces mechanical input, saves hoisting costs, lowers project costs, and speeds up construction progress. It also effectively eliminates safety hazards and overcomes the difficulties of construction in areas with limited space and inaccessibility of large lifting machinery, achieving excellent application results and demonstrating significant promotional value.

[0008] In any of the above embodiments, it is preferred that the moving machine includes a hydraulic rail clamp that travels along a horizontal rail, and a jacking cylinder is hinged to the hydraulic rail clamp. The telescopic end of the jacking cylinder is connected to the power transformer through a transformer outer wall connecting seat, and the transformer outer wall connecting seat is detachably installed on the power transformer.

[0009] In any of the above embodiments, it is preferred that the rail support is a sleeper that supports the horizontal rail.

[0010] In any of the above embodiments, it is preferred that the suspension rail support rests on a roadbed plate, which is laid on the ground. This ensures the stability of the suspension rail support in supporting the horizontal rail.

[0011] In any of the above embodiments, it is preferred that the roadbed plate comprises multiple adjacent steel plates. This provides readily available materials and facilitates construction.

[0012] In any of the above embodiments, it is preferred that the rail support is a multi-segment structure, comprising multiple H-beam segments. Adjacent H-beam segments are connected by H-beam splicing members. Each H-beam splicing member includes a left side plate and a right side plate at the splice point of adjacent H-beams. The left side plate and right side plate are symmetrically arranged on both sides of the web of the H-beam. The left side plate and right side plate are detachably connected to the web of two adjacent sets of H-beam segments by corresponding connecting bolts. The bottom ends of the left side plate and right side plate are bent to form a left bottom. The structure includes a plate, a right base plate, and a lower guard plate located below the lower flange of the I-beam. Multiple sets of studs A are spaced apart along the length of the lower guard plate. Each stud A penetrates the lower flange and the left base plate and is threadedly connected to a connecting nut A, clamping the left half of the lower flange between the left base plate and the lower guard plate. Multiple sets of studs B are also spaced apart along the length of the lower guard plate. Each stud B penetrates the lower flange and the right base plate and is threadedly connected to a connecting nut B, clamping the right half of the lower flange between the right base plate and the lower guard plate.

[0013] The rail support is a multi-segment structure, which facilitates the transportation of the rail support. The rail support can be transported to the construction site first and then assembled. It is fixed by bolt assembly, making installation and disassembly simpler and more convenient. The lower guard plate also ensures the structural strength of the connection.

[0014] In any of the above embodiments, preferably, the rail support includes a support top plate and a support bottom plate arranged parallel to each other and spaced apart. The lower surface of the support top plate is provided with an upper sleeve A and an upper sleeve B, and the upper surface of the support bottom plate is provided with a lower sleeve A and a lower sleeve B. The upper and lower ends of a replaceable support column A are respectively inserted into the upper sleeve A and the lower sleeve A, and the upper and lower ends of a replaceable support column B are respectively inserted into the upper sleeve B and the lower sleeve B. Connecting plates A and C are respectively hinged to both sides of the support top plate. Connecting plates B and D are hinged to both sides of the supporting base plate, respectively. The other end of connecting plate A is connected to connecting plate B, and the other end of connecting plate C is hinged to connecting plate D. Four sets of symmetrical H-beam fixing components A are provided on the upper surface of the supporting top plate. Two sets of H-beam fixing components A are provided for each horizontal rail. The H-beam fixing component A includes a stud C that is fixed to the supporting top plate. The upper end of the stud C passes through a pressure plate and is connected to a connecting nut C. The other end of the pressure plate is pressed against the lower flange of the H-beam.

[0015] The rail support component plays a supporting and fixing role for the horizontal rail. When it is necessary to adjust the height of the rail support component, it is only necessary to replace the replaceable support column A and replaceable support column B of different heights. The replaceable support column A and replaceable support column B are identical, so that after the two ends of the horizontal rail are supported on the transport vehicle body and the rail support component respectively, the horizontal rail can be kept in a horizontal state.

[0016] In any of the above embodiments, the preferred embodiment is that the suspension rail support includes a support base frame supported on the ground, with lower sleeves A and B spaced apart on the support base frame. A lifting beam is provided above the support base frame, with upper inserts A and B vertically installed on the lifting beam. The bottom end of the upper insert A is inserted into the lower sleeve A and slides with it. The bottom end of the upper insert B is inserted into the lower sleeve B and slides with it. A jack is installed on the bottom crossbeam between the lower sleeves A and B, with the top end of the jack abutting against the middle of the lifting beam. Four sets of symmetrical I-beam fixing components B are provided on the upper surface of the lifting beam, with two sets of I-beam fixing components B corresponding to each horizontal rail. The I-beam fixing components B have the same structure as the I-beam fixing components A.

[0017] After the support frame is placed on the ground, the height of the lifting beam can be adjusted by operating the jacks. After the height of the lifting beam is adjusted, the horizontal rail is fixed by the I-beam fixing component B, so as to achieve effective support and fixation of the horizontal rail.

[0018] In any of the above solutions, it is preferred that the supporting base frame is a rectangular frame structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The hydraulic propulsion device for large power transformers described in this utility model reduces mechanical input, saves hoisting costs, lowers project costs, and speeds up construction progress compared to traditional construction techniques, while effectively eliminating safety hazards.

[0020] The hydraulic propulsion device for large power transformers described in this utility model also overcomes the construction difficulties caused by the small space in the transformer area and the inability of large lifting machinery to enter, achieving excellent application results and demonstrating significant promotional value.

[0021] The hydraulic propulsion device for large power transformers described in this utility model uses rail support components to support and fix the horizontal rails. When it is necessary to adjust the height of the rail support components, it is only necessary to replace the replaceable support columns A and B with different heights. The replacement support columns A and B are identical, so that after the two ends of the horizontal rail are supported on the transport vehicle body and the rail support components respectively, the horizontal rail can be kept in a horizontal state. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the I-beam splicing component of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the I-beam splicing component of this utility model. Figure 2 ; Figure 4 This is a structural schematic diagram of the rail support component of this utility model; Figure 5 This is a schematic diagram of the suspension rail support structure of this utility model; In the diagram: 1. Transformer foundation; 2. Horizontal rail; 3. Rail support components; 3.1. Support top plate; 3.2. Support bottom plate; 3.3. Upper bushing A; 3.4. Lower bushing A; 3.5. Replaceable support column A; 3.6. Upper bushing B; 3.7. Lower bushing B; 3.8. Replaceable support column B; 3.9. Connecting plate A; 3.10. Connecting plate B; 3.11. Connecting plate C; 3.12. Connecting plate D; 3.13. Stud C; 3.14. Pressure plate; 3.15. Connecting nut C; 4. Suspension rail support; 4.1. Support bottom frame; 4.2. Lower bushing A; 4.3. Lower bushing B; 4.4. Bottom crossbeam; 4.5. Upper insertion tube A; 4.6. Upper insertion tube B. 4.7 Lifting beam 4.8 Jack 5 Transport vehicle body 6 Power transformer 7 Left side plate 8 Left bottom plate 9 Right side plate 10 Right bottom plate 11 Connecting bolts 12 Lower guard plate 13 Stud A 14 Connecting nut A 15 Stud B 16 Connecting nut B 17 Roadbed plate 18 Hydraulic rail clamp 19 Pushing cylinder 20 Transformer outer wall connecting seat. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0025] Example 1, as Figure 1 As shown, the large power transformer hydraulic propulsion device includes a transformer foundation 1 and two sets of parallel and spaced horizontal rails 2. The horizontal rails 2 are supported on the transformer foundation 1 by rail support members 3. The other end of the horizontal rails 2 is supported on a transport vehicle body 5. The horizontal rails 2 between the transport vehicle body 5 and the rail support members 3 are suspended in the air. This suspended section is supported by a suspension rail support 4 placed on the ground. Each set of horizontal rails 2 is equipped with a pusher that pushes the power transformer 6 to move along the length of the horizontal rail 2.

[0026] During construction, after the flatbed truck carrying the power transformer 6 is driven into the substation, it is parked next to the transformer foundation 1 by the guide personnel according to the location of the transformer foundation 1. It is also necessary to confirm whether the direction of the high and low voltage side of the main transformer is consistent with the high and low voltage side of the substation, and at the same time, the center of the power transformer 6 on the flatbed truck is aligned with the center of the transformer foundation 1. Then, the rail support 3 and the suspension rail support 4 are installed, and the power transformer 6 is lifted using jacks, so that a gap is created between the power transformer 6 and the transport vehicle body 5, allowing the horizontal rail 2 to pass through. After the power transformer 6 is lifted, two horizontal steel rails 2 are laid. The two ends of the horizontal steel rails 2 are respectively mounted on the transport vehicle body 5 and the rail support 3. The suspended section of the horizontal steel rails 2 is mounted on the suspension rail support 4, and a pushing machine is installed on the horizontal steel rails 2. After the horizontal steel rails 2 are laid in place, the pressure of the jacks supporting the power transformer 6 is released, so that the power transformer 6 falls smoothly on the two sets of horizontal steel rails 2. Then, the pusher can be used to slide the power transformer 6 from above the transport vehicle 5 along the horizontal steel rails 2 to above the transformer foundation 1. After it is in place, the pushing is stopped and the pushing machine is removed. Then, the power transformer 6 is lifted again using jacks, so that a gap is created between the power transformer 6 and the transformer foundation 1 that allows the horizontal rail 2 to pass through, and the horizontal rail 2 and rail support 3 are removed. After the horizontal steel rail 2 and the rail support 3 are removed, the pressure on the jacks supporting the power transformer 6 is released until the power transformer 6 is stably placed on the transformer foundation 1. Compared with the traditional construction process, this reduces mechanical input, saves hoisting costs, lowers project costs, and speeds up the construction progress. At the same time, it effectively eliminates safety hazards and overcomes the construction difficulties of the narrow space in the transformer area and the inability of large lifting machinery to enter. It has achieved good application results and has significant promotional value.

[0027] Example 2, as Figure 1-2 As shown, the large power transformer hydraulic propulsion device includes a transformer foundation 1 and two sets of parallel and spaced horizontal rails 2. The horizontal rails 2 are supported on the transformer foundation 1 by rail support members 3. The other end of the horizontal rails 2 is supported on a transport vehicle body 5. The horizontal rails 2 between the transport vehicle body 5 and the rail support members 3 are suspended in the air. This suspended section is supported by a suspension rail support 4 placed on the ground. Each set of horizontal rails 2 is equipped with a pusher that pushes the power transformer 6 to move along the length of the horizontal rail 2.

[0028] Furthermore, the pushing machine includes a hydraulic rail clamp 18 that travels along the horizontal rail 2. A jacking cylinder 19 is hinged to the hydraulic rail clamp 18. The telescopic end of the jacking cylinder 19 is connected to the power transformer 6 through a transformer outer wall connecting seat 20. The transformer outer wall connecting seat 20 is detachably installed on the power transformer 6.

[0029] Furthermore, the rail support 3 is a sleeper that supports the horizontal rail 2.

[0030] Furthermore, the suspension rail support 4 is supported on the roadbed plate 17, which is laid on the ground. This ensures the stability of the suspension rail support 4 in supporting the horizontal rail 2.

[0031] Furthermore, the roadbed plate 17 comprises multiple adjacent steel plates. The materials are readily available, and construction is convenient.

[0032] Furthermore, referring to Figure 2 and Figure 3 The rail support 3 is a multi-segment structure, comprising multiple H-beam segments. Adjacent H-beam segments are connected by H-beam splicing members. Each H-beam splicing member includes a left side plate 7 and a right side plate 9 located at the splice point of adjacent H-beams. The left side plate 7 and right side plate 9 are symmetrically arranged on both sides of the web of the H-beam. The left side plate 7 and right side plate 9 are detachably connected to the web of two adjacent H-beam segments respectively by corresponding connecting bolts 11. The bottom ends of the left side plate 7 and right side plate 9 are bent to form a left bottom plate 8 and a right bottom plate 10 respectively. The lower flange of the H-beam... A lower guard plate 12 is provided below the plate. Multiple sets of studs A13 are arranged at intervals along the length of the lower guard plate 12. The studs A13 penetrate the lower wing plate and the left bottom plate 8 and are threadedly connected to the connecting nut A14, clamping the left half of the lower wing plate between the left bottom plate 8 and the lower guard plate 12. Multiple sets of studs B15 are arranged at intervals along the length of the lower guard plate 12. The studs B15 penetrate the lower wing plate and the right bottom plate 10 and are threadedly connected to the connecting nut B16, clamping the right half of the lower wing plate between the right bottom plate 10 and the lower guard plate 12.

[0033] Furthermore, the rail support 3 has a multi-segment structure, which facilitates the transportation of the rail support 3. The rail support 3 can be transported to the construction site first and then assembled. It is fixed by bolt assembly, making installation and disassembly simpler and more convenient. The setting of the lower guard plate 12 also ensures the structural strength of the connection.

[0034] Furthermore, referring to Figure 4The rail support 3 includes a support top plate 3.1 and a support bottom plate 3.2 arranged parallel to each other and spaced apart. The lower surface of the support top plate 3.1 is provided with an upper sleeve A3.3 and an upper sleeve B3.6. The upper surface of the support bottom plate 3.2 is provided with a lower sleeve A3.4 and a lower sleeve B3.7. The upper and lower ends of a replaceable support column A3.5 are respectively inserted into the upper sleeve A3.3 and the lower sleeve A3.4. The upper and lower ends of a replaceable support column B3.8 are respectively inserted into the upper sleeve B3.6 and the lower sleeve B3.7. Connecting plates A3.9 and C3.11 are hinged to both sides of the support top plate 3.1. The support bottom plate 3. Connecting plates B3.10 and D3.12 are hinged to both sides of the support plate 2. The other end of the connecting plate A3.9 intersects with the connecting plate B3.10, and the other end of the connecting plate C3.11 is hinged with the connecting plate D3.12. Four sets of symmetrical H-beam fixing components A are provided on the upper surface of the support plate 3.1. Two sets of H-beam fixing components A are provided for each horizontal rail 2. The H-beam fixing component A includes a stud C3.13 fixed to the support plate 3.1. The upper end of the stud C3.13 passes through the pressure plate 3.14 and is connected to the connecting nut C3.15. The other end of the pressure plate 3.14 is pressed against the lower flange of the H-beam.

[0035] The rail support 3 provides support and fixation for the horizontal rail 2. When the height of the rail support 3 needs to be adjusted, it is only necessary to replace the replaceable support column A3.5 and replaceable support column B3.8 with different heights. The replaceable support column A3.5 and replaceable support column B3.8 are identical, so that after the two ends of the horizontal rail 2 are supported on the transport vehicle body 5 and the rail support 3 respectively, the horizontal rail 2 can be kept in a horizontal state.

[0036] Furthermore, referring to Figure 5 The suspension rail support 4 includes a support base frame 4.1 supported on the ground. Lower sleeves A4.2 and B4.3 are spaced apart on the support base frame 4.1. A lifting beam 4.7 is positioned above the support base frame 4.1. Upper inserts A4.5 and B4.6 are vertically mounted on the lifting beam 4.7. The bottom end of the upper insert A4.5 is inserted into the lower sleeve A4.2 and slides with it. The bottom end of the upper insert B4.6 is inserted into… The lower sleeve B4.3 is inserted into the lower sleeve A4.2 and slides with it. A jack 4.8 is installed on the bottom crossbeam 4.4 between the lower sleeve A4.2 and the lower sleeve B4.3. The top of the jack 4.8 abuts against the middle of the lifting beam 4.7. The upper surface of the lifting beam 4.7 is provided with four sets of symmetrical I-beam fixing components B. Each horizontal rail 2 is provided with two sets of I-beam fixing components B. The structure of the I-beam fixing components B is the same as that of the I-beam fixing components A.

[0037] Furthermore, after the supporting base frame 4.1 is supported on the ground, the jack 4.8 can be used to adjust the height of the lifting beam 4.7. After the height of the lifting beam 4.7 is adjusted, the horizontal rail 2 is fixed by the I-beam fixing component B, so as to achieve effective support and fixation of the horizontal rail 2.

[0038] Furthermore, the supporting base frame 4.1 is a rectangular frame structure.

[0039] The hydraulic propulsion device for large power transformers described in this utility model reduces mechanical input, saves hoisting costs, lowers project costs, and speeds up construction progress compared to traditional construction techniques, while effectively eliminating safety hazards.

[0040] The hydraulic propulsion device for large power transformers described in this utility model also overcomes the construction difficulties caused by the small space in the transformer area and the inability of large lifting machinery to enter, achieving excellent application results and demonstrating significant promotional value.

[0041] The hydraulic propulsion device for large power transformers described in this utility model uses rail support components to support and fix the horizontal rails. When it is necessary to adjust the height of the rail support components, it is only necessary to replace the replaceable support columns A and B with different heights. The replacement support columns A and B are identical, so that after the two ends of the horizontal rail are supported on the transport vehicle body and the rail support components respectively, the horizontal rail can be kept in a horizontal state.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0043] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A hydraulic propulsion device for a large power transformer, comprising a transformer foundation and two sets of parallel and spaced-apart horizontal steel rails, characterized in that: The horizontal rails are supported on the transformer foundation by rail supports, and the other end of the horizontal rails is supported on the transport vehicle body. The horizontal rails between the transport vehicle body and the rail supports are suspended in the air. This suspended section is supported by a suspension rail support placed on the ground. Each set of horizontal rails is equipped with a pusher that pushes the power transformer along the length of the horizontal rails.

2. The hydraulic propulsion device for a large power transformer according to claim 1, characterized in that, The moving machine includes a hydraulic rail clamp that travels along a horizontal rail. A jacking cylinder is hinged to the hydraulic rail clamp. The telescopic end of the jacking cylinder is connected to the power transformer through a transformer outer wall connecting seat. The transformer outer wall connecting seat is detachably installed on the power transformer.

3. The hydraulic propulsion device for large power transformers according to claim 1 or 2, characterized in that, The rail support is a sleeper that supports the horizontal rail.

4. The hydraulic propulsion device for a large power transformer according to claim 3, characterized in that, The suspension rail is supported on the roadbed plate, which is laid on the ground.

5. The hydraulic propulsion device for a large power transformer according to claim 4, characterized in that, The roadbed plate consists of multiple adjacent steel plates.

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