Forced oil transformer oil conduit assembly structure

Abstract

The invention relates to a forced oil transformer oil conduit assembly structure, and belongs to the technical field of transformers. The structure consists of a fixed seat, an oil guide pipe and an oil guide base plate which are mutually independent and can be integrally assembled. The fixing base, the oil guide pipe and the oil guide base plate are assembled after the transformer winding sheathing process is finished, the problem that a lifting arm of lifting equipment cannot be withdrawn in the sheathing process of the transformer is solved, oil leakage of the oil guide pipeline and the heat dissipation efficiency of the winding are guaranteed, the operation process is simplified, and the operation safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to an oil guide pipe assembly structure for a forced oil transformer. Background Art

[0002] During the transformer winding wrapping process, the entire winding is lifted by a lifting equipment and then wrapped around the core column. The lifting arm of the lifting equipment interferes with the oil guide pipeline of the forced oil transformer, making it impossible to withdraw the lifting arm at one time. The lifting arm needs to be withdrawn before the winding is wrapped to the appropriate position, and then the winding wrapping is alternately put into place several times with the help of tools such as jacks.

[0003] When the jack is used to support the winding, the winding support plate is deformed and prone to cracking, which reduces the mechanical strength and causes quality problems. During the operation, there are risk factors such as the jack falling off, the winding being damaged, and personnel being injured. Summary of the invention

[0004] The purpose of the present invention is to provide an oil-conducting pipe assembly structure for a forced oil transformer to solve the problems mentioned in the background art that the winding support plate is deformed and cracked easily, and the mechanical strength is reduced, causing quality risks during the process of the winding supported by the jack. During the operation, there are risk factors such as the jack falling off, the winding being damaged, and personnel being injured.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oil-conducting pipe assembly structure for a forced oil transformer, comprising a winding, an iron core column is arranged at the middle part of the winding, a clamping mechanism is arranged at the outer side wall of the winding, a suspension arm is movably connected to both sides of the lower end of the winding, a pad is fixedly connected around the lower end of the winding, an oil-conducting pipe body is fixedly connected to the lower end of the pad, a fixing mechanism is detachably connected to the bottom of the oil-conducting pipe body, and a clamp is detachably connected to the inner side of the fixing mechanism;

[0006] The clamping mechanism includes a slot, an outer wall of the slot is embedded and connected with one side of the bottom wall of the winding, an inner wall of the slot is provided with an insert block, an upper end of the insert block is provided with a movable frame, connecting ear plates are fixedly connected to both sides of the movable frame, both sides of the movable frame are embedded and connected with limiting grooves, one side of the movable frame is detachably connected with a fixed frame, both sides of the fixed frame are fixed with limiting plates, and the inner wall of the connecting ear plate is threadedly connected with bolts.

[0007] Preferably, the outer wall of the core column is plugged into the inner wall of the winding, and the inner wall of the clamping mechanism is detachably connected to the outer wall of the winding.

[0008] Preferably, the inner wall of the slot is snap-fitted with the outer wall of the insert block, and the upper end of the insert block is fixedly connected with the lower end of the movable frame.

[0009] Preferably, the movable frame and the fixed frame are both in a semi-arc shape.

[0010] Preferably, the fixing mechanism includes a fixing seat, the inner wall of the fixing seat is detachably connected to the outer wall of the oil guide pipe body, the inner wall of the fixing seat is provided with a rubber pad, fasteners are provided on both sides of the fixing seat, a gasket is sleeved on one end of the outer wall of the fastener, and fastening holes are opened through both sides of the fixing seat.

[0011] Preferably, the inner wall of the fixing seat is bonded to the outer wall of the rubber pad, and the two sides of the fixing seat are threadedly connected to the outer wall of the fastener.

[0012] Preferably, the fastener passes through the fastening holes on both sides of the fixing seat and extends into the clamp.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The clamping mechanism can make the equipment able to wrap the oil guide tube with sealing crepe paper first and then insert it into the fixed seat and the pad under the coordinated action of the fixed seat, the oil guide tube body and the pad, so that the contact part does not leak oil. It is pre-assembled into a whole and then assembled to the transformer body, which solves the problem of deformation, easy cracking and reduced mechanical strength of the winding support plate, and eliminates the safety hazards caused by using other methods;

[0015] 2. The fixing mechanism can enable the equipment to quickly and stably fix the oil pipe on the transformer body, avoiding the problem of poor sealing caused by the movement or vibration of the oil pipe during the assembly process. In addition, it is convenient to disassemble and replace the oil pipe, improving the maintenance efficiency. The fasteners of the fixing mechanism are connected to the clamps through the fastening holes, so that the entire assembly structure can still maintain good stability under the influence of vibration and thermal expansion and contraction generated by the operation of the transformer. At the same time, the setting of the rubber pad effectively reduces the noise during the assembly process and improves the comfort of the assembly environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the clamping mechanism of the present invention;

[0018] Figure 3 It is a schematic diagram of the fixing mechanism of the present invention;

[0019] Figure 4 It is a schematic side view of the three-dimensional structure of the present invention.

[0020] In the figure: 1. winding; 2. core column; 3. clamping mechanism; 4. suspension arm; 5. pad; 6. oil guide pipe body; 7. fixing mechanism; 8. clamp; 31. slot; 32. plug-in block; 33. movable frame; 34. connecting ear plate; 35. limit groove; 36. fixing frame; 37. limit plate; 38. bolt; 71. fixing seat; 72. rubber pad; 73. fastener; 74. washer; 75. fastening hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1 and Figure 4 The present invention provides a technical solution: an oil-conducting pipe assembly structure of a forced oil transformer, comprising a winding 1, an iron core column 2 is arranged in the middle part of the winding 1, a clamping mechanism 3 is arranged on the outer wall of the winding 1, a suspension arm 4 is movably connected to both sides of the lower end of the winding 1, a pad 5 is fixedly connected around the lower end of the winding 1, an oil-conducting pipe body 6 is fixedly connected to the lower end of the pad 5, a fixing mechanism 7 is detachably connected to the bottom of the oil-conducting pipe body 6, a clamping member 8 is detachably connected to the inner side of the fixing mechanism 7, the clamping mechanism 3 comprises a slot 31, and the outer wall of the slot 31 is connected to the winding 1. One side of the bottom wall of the group 1 is embedded and connected, an insert block 32 is provided on the inner wall of the slot 31, a movable frame 33 is provided on the upper end of the insert block 32, connecting ear plates 34 are fixedly connected to both sides of the movable frame 33, and both sides of the movable frame 33 are embedded and connected with limiting grooves 35, one side of the movable frame 33 is detachably connected with a fixed frame 36, and both sides of the fixed frame 36 are fixedly connected with limiting plates 37, and the inner wall of the connecting ear plate 34 is threadedly connected with bolts 38, the outer wall of the core column 2 is plugged with the inner wall of the winding 1, and the inner wall of the clamping mechanism 3 is detachably connected with the outer wall of the winding 1;

[0023] The lifting equipment boom 4 lifts the winding 1, wraps it around the core column 2, and withdraws the boom 4. The pad 5, the oil guide pipe body 6, and the fixing seat 71 are pre-assembled into a whole and installed on the clamp 8 with fasteners 73. The winding 1 is wrapped around the core column 2, and the boom 4 is withdrawn. The oil guide pipe is assembled again. While not affecting the withdrawal of the boom 4, the pad 5, the oil guide pipe body 6 and the fixing seat 71 can be quickly pre-assembled into a whole, and installed on the clamp 8 with fasteners 73 to complete the installation of the oil guide pipe body 6. The bottom of the oil guide pipe body 6 is connected to the transformer through a fixing mechanism 7, which ensures the stability of the oil guide pipe during the operation of the transformer. The fixing mechanism 7 is set to be detachable, which is convenient for maintenance or replacement when necessary. The clamp 8 is connected to the fixing seat 71 through the fastener 73, so that the clamp 8 can adjust its position as needed to adapt to oil guide pipes of different sizes.

[0024] See also Figure 2 In order to quickly clamp and fix the winding 1 on the core column 2, the inner wall of the slot 31 is clamped with the outer wall of the plug block 32, and the upper end of the plug block 32 is fixedly connected with the lower end of the movable frame 33. The shape of the movable frame 33 and the fixed frame 36 are both semi-arc structures;

[0025] The embedded connection between the limit groove 35 and the movable frame 33 ensures the precise position of the movable frame 33 during the assembly process of the winding 1, preventing it from being displaced during operation. The fixed connection between the limit plate 37 and the fixed frame 36 further enhances the stability of the clamping mechanism 3 and ensures the reliability of the entire assembly structure. Through this arrangement, the forced oil transformer oil guide pipe assembly structure not only improves the assembly efficiency, but also enhances the safety and stability during the operation of the transformer.

[0026] See also Figure 3 In order to quickly fix the oil guide tube body 6 on the clamp 8, the fixing mechanism 7 includes a fixing seat 71, the inner wall of the fixing seat 71 is detachably connected to the outer wall of the oil guide tube body 6, the inner wall of the fixing seat 71 is provided with a rubber pad 72, and fasteners 73 are provided on both sides of the fixing seat 71. A gasket 74 is sleeved on one end of the outer wall of the fastener 73, and fastening holes 75 are opened on both sides of the fixing seat 71. The inner wall of the fixing seat 71 is bonded to the outer wall of the rubber pad 72, and the two sides of the fixing seat 71 are threadedly connected to the outer wall of the fastener 73. The fastener 73 penetrates the fastening holes 75 on both sides of the fixing seat 71 and extends into the clamp 8;

[0027] The role of the rubber pad 72 is to provide additional buffering to reduce the vibration and impact of the oil guide pipe body 6 during the assembly process, thereby protecting the oil guide pipe body 6 from damage. The other end of the fastener 73 is threadedly connected to the inner wall of the clamp 8. By rotating the fastener 73, the oil guide pipe body 6 can be firmly fixed. The outer wall of the fastener 73 is sleeved with a gasket 74, which not only increases the friction between the fastener 73 and the fixing seat 71 to prevent the fastener 73 from loosening, but also protects the fastener 73 from corrosion. The setting of the entire fixing mechanism 7 ensures that the oil guide pipe body 6 remains stable during the operation of the transformer to avoid failures caused by vibration or displacement.

[0028] Working principle: First, the winding 1 is lifted by the lifting arm 4 of the lifting equipment, and is wrapped on the core column 2. The lifting arm 4 is withdrawn, and the pad 5, the oil guide pipe body 6, and the fixing seat 71 are pre-assembled into a whole, and are installed on the clamp 8 with fasteners 73. The winding 1 is wrapped on the core column 2, and the lifting arm 4 is withdrawn, and then the oil guide pipe is assembled. While not affecting the withdrawal of the lifting arm 4, the pad 5, the oil guide pipe body 6 and the fixing seat 71 can be quickly pre-assembled into a whole, and fasteners 73 are installed on the clamp 8 to complete the installation of the oil guide pipe body 6. The bottom of the oil guide pipe body 6 is connected to the transformer through the fixing mechanism 7, which ensures the stability of the oil guide pipe during the operation of the transformer. The fixing mechanism 7 is set to be detachable, which is convenient for maintenance or replacement when necessary. The clamp 8 is connected to the fixing seat 71 through a fastener 73, so that the clamp 8 can be adjusted according to the needs to adapt to oil pipes of different sizes. The embedded connection between the limit groove 35 and the movable frame 33 ensures the precise position of the movable frame 33 during the assembly process of the winding 1 to prevent it from being displaced during operation. The fixed connection between the limit plate 37 and the fixing frame 36 further enhances the stability of the clamping mechanism 3 and ensures the reliability of the entire assembly structure. Through this arrangement, the forced oil transformer oil pipe assembly structure not only improves the assembly efficiency, but also enhances the safety and stability during the operation of the transformer;

[0029] Then, the rubber pad 72 provides additional buffering to reduce the vibration and impact of the oil guide pipe body 6 during the assembly process, thereby protecting the oil guide pipe body 6 from damage. The other end of the fastener 73 is threadedly connected to the inner wall of the clamp 8. By rotating the fastener 73, the oil guide pipe body 6 can be firmly fixed. The outer wall of the fastener 73 is sleeved with a gasket 74, which not only increases the friction between the fastener 73 and the fixing seat 71 to prevent the fastener 73 from loosening, but also protects the fastener 73 from corrosion. The setting of the entire fixing mechanism 7 ensures that the oil guide pipe body 6 remains stable during the operation of the transformer to avoid failures caused by vibration or displacement. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forced oil transformer oil guide pipe assembly structure, comprising a winding (1), characterized in that: An iron core column (2) is arranged in the middle of the winding (1), a clamping mechanism (3) is arranged on the outer side wall of the winding (1), a suspension arm (4) is movably connected to both sides of the lower end of the winding (1), a pad (5) is fixedly connected around the lower end of the winding (1), an oil guide pipe body (6) is fixedly connected to the lower end of the pad (5), a fixing mechanism (7) is detachably connected to the bottom of the oil guide pipe body (6), and a clamp (8) is detachably connected to the inner side of the fixing mechanism (7); The clamping mechanism (3) comprises a slot (31), the outer wall of the slot (31) is embedded and connected with one side of the bottom wall of the winding (1), the inner wall of the slot (31) is provided with an insert block (32), the upper end of the insert block (32) is provided with a movable frame (33), both sides of the movable frame (33) are fixedly connected with connecting ear plates (34), both sides of the movable frame (33) are embedded and connected with limiting grooves (35), one side of the movable frame (33) is detachably connected with a fixed frame (36), both sides of the fixed frame (36) are fixedly connected with limiting plates (37), and the inner wall of the connecting ear plate (34) is threadedly connected with bolts (38).

2. The oil guide pipe assembly structure of a forced oil transformer according to claim 1, characterized in that: The outer wall of the iron core column (2) is plugged into the inner wall of the winding (1), and the inner wall of the clamping mechanism (3) is detachably connected to the outer wall of the winding (1).

3. The oil guide pipe assembly structure of a forced oil transformer according to claim 1, characterized in that: The inner wall of the slot (31) is snap-fitted with the outer wall of the insert block (32), and the upper end of the insert block (32) is fixedly connected with the lower end of the movable frame (33).

4. The oil guide pipe assembly structure of a forced oil transformer according to claim 3 is characterized in that: The movable frame (33) and the fixed frame (36) are both in a semi-arc shape.

5. The oil guide pipe assembly structure of a forced oil transformer according to claim 1, characterized in that: The fixing mechanism (7) comprises a fixing seat (71), the inner wall of the fixing seat (71) is detachably connected to the outer wall of the oil guide pipe body (6), the inner wall of the fixing seat (71) is provided with a rubber pad (72), fasteners (73) are provided on both sides of the fixing seat (71), a gasket (74) is sleeved on one end of the outer wall of the fastener (73), and fastening holes (75) are penetrated on both sides of the fixing seat (71).

6. The oil guide pipe assembly structure of a forced oil transformer according to claim 5, characterized in that: The inner wall of the fixing seat (71) is bonded to the outer wall of the rubber pad (72), and both sides of the fixing seat (71) are threadedly connected to the outer wall of the fastener (73).

7. The oil guide pipe assembly structure of a forced oil transformer according to claim 5, characterized in that: The fastener (73) passes through the fastening holes (75) on both sides of the fixing seat (71) and extends into the clamp (8).

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