CN216818042U - Oil tank cover of oil-immersed transformer - Google Patents
Oil tank cover of oil-immersed transformer Download PDFInfo
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- CN216818042U CN216818042U CN202123123659.0U CN202123123659U CN216818042U CN 216818042 U CN216818042 U CN 216818042U CN 202123123659 U CN202123123659 U CN 202123123659U CN 216818042 U CN216818042 U CN 216818042U
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Abstract
The utility model relates to the technical field of transformers, in particular to an oil tank cover of an oil immersed transformer, which comprises a tank cover body, wherein the edge of the tank cover body is provided with a plurality of bolt holes for being connected with the top of an oil tank through bolts; hanging ring components are fixed at four corners of the upper surface of the box cover body, through holes for the connecting bolts to penetrate through are formed in the side walls of the two ends of the hanging rings, and limiting grooves for the end portions of the connecting bolts to insert into are formed in the two side walls of the foundation block; the tip of connecting bolt is equipped with and is used for the pinhole that the spacer pin passed, the basis piece with the middle part of stopper is equipped with and is used for the perforation that the fixing bolt lower extreme passed is equipped with on fixing bolt's the lower extreme outer wall with screw hole matching thread connects's external screw thread on the case lid body upper surface. According to the hoisting ring assembly, the hoisting ring can be quickly replaced when workers find that the hoisting ring has damage signs after being used for a long time, so that the safety coefficient in the transportation and hoisting process is improved.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to an oil tank cover of an oil immersed transformer.
Background
The oil immersed transformer is a novel high-performance transformer with more reasonable structure and better performance, and the three-dimensional wound iron core has no air gap in a magnetic circuit because three core columns are arranged in a three-dimensional manner in an equilateral triangle, so that the winding is tighter, the three magnetic circuits are consistent in length and shortest, and the cross sectional area of the core columns of the iron core is closer to a circle, so that the performance is further improved, the loss is reduced, the noise is reduced, the three-phase balance is realized, the third harmonic component is reduced, and the product is more suitable for urban and rural power, the transformation of power grids of industrial and mining enterprises, and is more suitable for combined transformers and transformers for pre-installed substations.
Oil immersed transformer is when installing to prepare to drop into the use or when demolising, because its weight is great, often need hoist and mount to the mounting bracket of eminence on, need use hoist and mount to carry out the handling to the transformer this moment, whether the staff need examine rings and have the risk of damage, if there is the potential safety hazard, need in time change it, if change slower, then can influence the job schedule.
For the above reasons, the present invention provides an oil tank cap for an oil-immersed transformer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an oil tank cover of an oil-immersed transformer, wherein a hanging ring assembly is arranged, so that a worker can quickly replace a hanging ring when finding that the hanging ring has damage after the hanging ring is used for a long time, and the safety coefficient in the transportation and hoisting process is improved.
In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:
the utility model discloses an oil tank cover of an oil-immersed transformer, which comprises a tank cover body, wherein the tank cover body is of a square structure, and the edge of the tank cover body is provided with a plurality of bolt holes for being connected with the top of an oil tank through bolts; the box cover comprises a box cover body and is characterized in that lifting ring assemblies are fixed at four corners of the upper surface of the box cover body, each lifting ring assembly comprises a base block, a lifting ring, a connecting bolt, a limiting pin, a limiting block and a fixing bolt, each lifting ring is of an inverted U-shaped structure, through holes for the connecting bolt to pass through are formed in the side walls of two ends of each lifting ring, limiting grooves for the end portions of the connecting bolts to insert are formed in the two side walls of each base block, limiting holes for the limiting pins to insert are formed in the upper surface of each base block, and the limiting holes are communicated with the limiting grooves; the end part of the connecting bolt is provided with a pin hole for the limiting pin to pass through, the middle parts of the base block and the limiting block are provided with through holes for the lower end of the fixing bolt to pass through, and the lower surface of the limiting block is contacted with the top end of the limiting pin; and the outer wall of the lower end of the fixing bolt is provided with an external thread which is in threaded connection with the threaded hole in the upper surface of the box cover body in a matching manner.
The cross section of the foundation block is of a regular octagonal structure; be equipped with square groove on the lateral wall at the both ends of rings, the through-hole set up in on the inner wall in square groove.
The lower side of the foundation block is provided with an annular gasket, the inner diameter of the gasket is equal to the outer diameter of the fixing bolt, and the outer diameter of the gasket is smaller than the width of the foundation block.
Be equipped with spacing frame on the wall of foundatin block both sides, spacing frame roughly is "Contraband" shape structure, its upper end lower surface with the tight contact in upper surface top of stopper, its lower end upper surface with the tight contact in lower surface top of foundatin block, its lateral wall pass through spacing bolt with connecting hole on the foundatin block lateral wall passes through threaded connection.
And the top of the nut of the fixing bolt is provided with a regular hexagonal power assisting hole.
The length of spacer pin is greater than the degree of depth in spacing hole, the lower surface of stopper is equipped with and is used for the male slot of spacer pin upper end, the slot with the degree of depth in spacing hole with the length of spacer pin equals.
The utility model has the beneficial effects that:
(1) by arranging the hanging ring assembly, when workers find that the hanging ring has damage signs after being used for a long time, the hanging ring assembly is quickly replaced, so that the safety coefficient in the transportation and hoisting process is improved; and rings can use the spacer pin to take place to rotate as the axle, and the foundation block also can adjust in the installation and turn to for the lifting eye of rings can be towards the center of case lid body, and when hoist and mount transformer, when the cable wire of hoist and mount was connected with rings, rings's atress direction can be along the direction of cable wire, thereby reduces the risk of damage.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the eye assembly of the present invention;
figure 3 is a cross-sectional view of a hoist ring assembly of the present invention.
In the figure: 1 case lid body, 2 bolt holes, 4 rings subassembly, 41 basic blocks, 42 rings, 43 connecting bolts, 44 spacer pins, 45 spacing blocks, 46 fixing bolts, 47 through holes, 48 spacing grooves, 49 spacing holes, 50 pin holes, 51 square grooves, 52 slots, 54 gaskets, 55 spacing frames, 56 spacing bolts, 57 helping hand holes.
Detailed Description
The utility model is further illustrated below:
referring to figures 1-3 of the drawings,
the utility model discloses an oil tank cover of an oil-immersed transformer, which comprises a tank cover body 1, wherein the tank cover body 1 is of a square structure, and the edge of the tank cover body is provided with a plurality of bolt holes 2 for connecting the top of an oil tank through bolts; hanging ring components 4 are fixed at four corners of the upper surface of the box cover body 1, each hanging ring component 4 comprises a base block 41, a hanging ring 42, a connecting bolt 43, a limiting pin 44, a limiting block 45 and a fixing bolt 46, each hanging ring 42 is of an inverted U-shaped structure, through holes 47 for the connecting bolts 43 to pass through are formed in the side walls of two ends of each hanging ring 42, limiting grooves 48 for the end portions of the connecting bolts 43 to insert into are formed in the two side walls of the base block 41, limiting holes 49 for the limiting pins 44 to insert into are formed in the upper surface of the base block 41, and the limiting holes 49 are communicated with the limiting grooves 48; the end of the connecting bolt 43 is provided with a pin hole 50 for the limit pin 44 to pass through, the middle parts of the base block 41 and the limit block 45 are provided with a through hole for the lower end of the fixing bolt 46 to pass through, and the lower surface of the limit block 45 is in contact with the top end of the limit pin 44; the outer wall of the lower end of the fixing bolt 46 is provided with an external thread which is in threaded connection with a threaded hole in the upper surface of the box cover body 1 in a matching manner, and the lifting ring assembly 4 is arranged, so that a worker can conveniently replace the lifting ring 42 when finding that the lifting ring has damage after long-term use, and the safety factor in the transportation and hoisting process is improved; and the hoisting ring 42 can rotate by taking the limit pin 44 as an axis, the base block 41 can also adjust the steering direction in the installation process, so that the hoisting hole of the hoisting ring 42 can face the center of the box cover body 1, when a transformer is hoisted, the hoisting cable is connected with the hoisting ring 42, the stress direction of the hoisting ring 42 can be along the direction of the cable, and the risk of damage is reduced.
The cross section of the foundation block 41 is of a regular octagonal structure; the lateral walls of the two end parts of the hanging ring 42 are provided with square grooves 51, the through holes 47 are arranged on the inner walls of the square grooves 51, and therefore the contact surface between the base block 41 and the hanging ring 42 is ensured to be a plane instead of a curved surface, and the connection between the base block and the hanging ring is more stable.
The below of basic piece 41 is equipped with and is annular gasket 54, the internal diameter of gasket 54 with fixing bolt 46's external diameter equals, and its external diameter is less than basic piece 41's width ensures that the bottom of limiting frame 55's lower extreme tip can insert basic piece 41, forms the centre gripping to stopper 45.
Be equipped with spacing frame 55 on the 41 both sides wall of foundation block, spacing frame 55 roughly is "Contraband" shape structure, its upper end lower surface with stopper 45's upper surface top tight contact, its lower end upper surface with foundation block 41's lower surface top tight contact, its lateral wall pass through spacing bolt 56 with connecting hole on the 41 lateral walls of foundation block passes through threaded connection, further presss from both sides tightly stopper 45 through setting up spacing frame 55, improves joint strength.
Fixing bolt 46's nut top is equipped with and is regular hexagon's helping hand hole 57, and the regular hexagon's helping hand hole 57 on nut top need just can twist out fixing bolt 46 through specific instrument, increases its factor of safety.
The length of spacer pin 44 is greater than the degree of depth of spacing hole 49, the lower surface of stopper 45 is equipped with and is used for the male slot 52 in spacer pin 44 upper end, slot 52 with the degree of depth of spacing hole 49 with the length of spacer pin 44 equals, when needs are changed rings, screws out the screw hole with fixing bolt 46, takes off behind the stopper 45, can take out it with hand centre gripping spacer pin 44 top salient, then takes connecting bolt 43 out and can change rings 42, and is very convenient.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the scope of the present invention.
Claims (6)
1. The utility model provides an oil-immersed transformer tank cap which characterized in that: the oil tank cover comprises a tank cover body (1), wherein the tank cover body (1) is of a square structure, and the edge of the tank cover body is provided with a plurality of bolt holes (2) for being connected with the top of an oil tank through bolts; the box cover comprises a box cover body (1) and is characterized in that lifting ring components (4) are fixed at four corners of the upper surface of the box cover body (1), each lifting ring component (4) comprises a base block (41), a lifting ring (42), a connecting bolt (43), a limiting pin (44), a limiting block (45) and a fixing bolt (46), each lifting ring (42) is of an inverted U-shaped structure, through holes (47) for the connecting bolts (43) to penetrate through are formed in the side walls of the two ends of each lifting ring, limiting grooves (48) for the connecting bolts (43) to insert into are formed in the two side walls of the base block (41), limiting holes (49) for the limiting pins (44) to insert into are formed in the upper surface of the base block (41), and the limiting holes (49) are communicated with the limiting grooves (48); the end part of the connecting bolt (43) is provided with a pin hole (50) for the limiting pin (44) to pass through, the middle parts of the base block (41) and the limiting block (45) are provided with a through hole for the lower end of the fixing bolt (46) to pass through, and the lower surface of the limiting block (45) is contacted with the top end of the limiting pin (44); and the outer wall of the lower end of the fixing bolt (46) is provided with an external thread which is in matched threaded connection with the threaded hole on the upper surface of the box cover body (1).
2. The oil tank cap of an oil-filled transformer according to claim 1, characterized in that: the cross section of the foundation block (41) is of a regular octagonal structure; the side walls of the two end parts of the hanging ring (42) are provided with square grooves (51), and the through holes (47) are formed in the inner walls of the square grooves (51).
3. The oil tank cap of an oil-filled transformer according to claim 2, characterized in that: the lower part of basis piece (41) is equipped with and is annular gasket (54), the internal diameter of gasket (54) with fixing bolt (46)'s external diameter equals, its external diameter is less than the width of basis piece (41).
4. An oil filled transformer tank cap according to claim 3, characterized in that: be equipped with spacing frame (55) on foundatin block (41) both sides wall, spacing frame (55) roughly are "Contraband" shape structure, its upper end lower surface with the upper surface top of stopper (45) tightly contacts, its lower end upper surface with the lower surface top of foundatin block (41) tightly contacts, its lateral wall pass through spacing bolt (56) with connecting hole on the foundatin block (41) lateral wall passes through threaded connection.
5. The oil tank cap of an oil-filled transformer according to claim 4, characterized in that: and a regular hexagonal power assisting hole (57) is formed in the top of the nut of the fixing bolt (46).
6. The oil tank cap of an oil-filled transformer according to claim 1, characterized in that: the length of spacing round pin (44) is greater than the degree of depth of spacing hole (49), the lower surface of spacing piece (45) is equipped with and is used for the inserted slot (52) of spacing round pin (44) upper end, slot (52) with the degree of depth of spacing hole (49) with the length of spacing round pin (44) equals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123123659.0U CN216818042U (en) | 2021-12-14 | 2021-12-14 | Oil tank cover of oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123123659.0U CN216818042U (en) | 2021-12-14 | 2021-12-14 | Oil tank cover of oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216818042U true CN216818042U (en) | 2022-06-24 |
Family
ID=82053317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123123659.0U Active CN216818042U (en) | 2021-12-14 | 2021-12-14 | Oil tank cover of oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216818042U (en) |
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2021
- 2021-12-14 CN CN202123123659.0U patent/CN216818042U/en active Active
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