CN216512373U - Bracket component for on-load tap-changer (OLTC) suspension core of 110kV transformer - Google Patents
Bracket component for on-load tap-changer (OLTC) suspension core of 110kV transformer Download PDFInfo
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- CN216512373U CN216512373U CN202123209889.9U CN202123209889U CN216512373U CN 216512373 U CN216512373 U CN 216512373U CN 202123209889 U CN202123209889 U CN 202123209889U CN 216512373 U CN216512373 U CN 216512373U
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- changer
- transformer
- hoisting
- tap
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Abstract
The utility model discloses a support assembly for a suspension core of an on-load tap-changer of a 110kV transformer, which comprises a support frame and a cantilever member rotatably connected to the top of the support frame, wherein the lower end of the support frame is provided with a base connected with a flange on the top surface of the tap-changer, the cantilever member is used for installing a hoisting tool, and the installation position of the hoisting tool on a cantilever is adjustable. The utility model has simple structure and meets the strength requirement, replaces the traditional working mode of hoisting the tap changer by using a crane, avoids the safety risk of using the crane in the transformer substation and greatly ensures the safety of personnel and equipment. The hoisting groove and the hoisting hole are formed in the cantilever, the position of the hoisting tool is adjustable, the hoisting tool is basically suitable for all 110kV main transformer tap switches, and the universality is high. The special tool solves the difficult working problem that the crane is difficult to use when the indoor main transformer tap changer is overhauled, and compared with the working mode of using the crane hoisting core, the special tool can be used for rapidly completing the overhaul and the reinstallation of the tap changer, and the use cost of the crane is saved.
Description
Technical Field
The utility model relates to a bracket assembly for a suspended core of an on-load tap-changer of a 110kV transformer.
Background
At present, the outdoor 110kV transformer on-load tap-changer is generally hoisted by a crane; for an indoor main transformer, if a lifting point is arranged on a roof right above an on-load tap-changer of a main transformer chamber, the tap-changer can be lifted by using the lifting point, if no lifting point exists, the tap-changer can only be lifted by using a crane after a main transformer chamber gate is dismantled, the workload is large, the safety risk of using the crane in a transformer substation is high, and the cost is huge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bracket component for an on-load tap-changer (OLTC) suspension core of a 110kV transformer, which has high safety and strong universality, improves the working efficiency and can reduce the maintenance cost
The utility model provides a support assembly for a suspension core of an on-load tap-changer of a 110kV transformer, which comprises a support frame and a cantilever member rotatably connected to the top of the support frame, wherein the lower end of the support frame is provided with a base connected with a flange on the top surface of the tap-changer, the cantilever member is used for installing a hoisting tool, and the installation position of the hoisting tool on a cantilever is adjustable.
In an embodiment of the above technical solution, the supporting frame includes the base and a supporting column, and the supporting column is a hollow column.
In an embodiment of the above technical scheme, the base is an arc-shaped plate, a circular hole matched with a flange on the top surface of the tap switch is formed in the arc-shaped plate, and the support column is fixed in the middle of the arc length of the base.
In one embodiment of the above technical scheme, a connecting plate is fixed at the middle position of the arc length of the base, the lower end of the supporting column is fixed on the connecting plate, and a reinforcing rib plate is arranged between the supporting column and the connecting plate.
In one embodiment of the above technical solution, a connecting plate is fixed at the middle position of the arc length of the base, and a sleeve is fixed on the connecting plate.
In an embodiment of the foregoing technical solution, the lower end of the supporting column is inserted into the sleeve and then is fastened by a radial pin, or the lower end of the supporting column is in threaded connection with the sleeve.
In one embodiment of the above technical solution, the cantilever member includes a cantilever and a connection rod connected to one end of the cantilever.
In one embodiment of the above technical scheme, the cantilever is provided with a strip-shaped groove and round holes with different apertures, which are respectively used for installing a hoisting tool.
In an embodiment of the above technical solution, the insertion rod is inserted into the supporting column.
The utility model has simple structure and meets the strength requirement, replaces the traditional working mode of hoisting the tap changer by using a crane, avoids the safety risk of using the crane in the transformer substation and greatly ensures the safety of personnel and equipment. The hoisting groove and the hoisting hole are formed in the cantilever, the position of the hoisting tool is adjustable, the hoisting tool is basically suitable for all 110kV main transformer tap switches, and the universality is high. The special tool solves the difficult working problem that the crane is difficult to use when the indoor main transformer tap changer is overhauled, and compared with the working mode of using the crane hoisting core, the special tool can be used for rapidly completing the overhaul and the reinstallation of the tap changer, and the use cost of the crane is saved. In short, the utility model has high safety and strong universality, and can improve the working efficiency and effectively reduce the maintenance cost.
Drawings
Fig. 1 is a schematic front view of an embodiment of the present invention.
Fig. 2 is a schematic axial structure diagram of the support frame in fig. 1.
Fig. 3 is a front view of the cantilever structure shown in fig. 1.
Detailed Description
As shown in fig. 1 to 3, the bracket assembly for an on-load tap-changer core of a 110kV transformer disclosed in the present embodiment includes a supporting frame 1 and a cantilever member 2 rotatably connected to the top of the supporting frame.
The support stand 1 includes a base 11 and a support column 12.
The base 11 is an arc-shaped plate, a round hole matched with a flange on the top surface of the tapping switch is formed in the round hole, and a connecting plate is fixed in the middle of the arc length of the base.
The support column 12 is a hollow column, the lower end of the support column is fixed on the connecting plate, and a reinforcing rib plate is arranged between the support column and the connecting plate.
When the support frame 1 is assembled with the flange at the top of the tapping switch, the base 11 is placed on the flange, the round hole in the base 11 is opposite to the threaded hole in the flange, and the base 1 is fixedly installed on the flange at the top of the tapping switch through bolts.
The boom member 2 comprises a boom 21 and a bayonet rod 22 connected at one end thereof.
The cantilever 21 is provided with a main hoisting groove and a plurality of secondary hoisting holes for installing a hoisting tool, the main hoisting groove is a strip-shaped groove arranged along the length direction of the cantilever 21 and is positioned at the lower part of the cantilever 21, the secondary hoisting holes are arranged above the main hoisting groove and comprise a plurality of round holes and long round holes which are positioned at the same height, and one end of the cantilever 21 is fixedly connected with a vertical sleeve 23 for connecting the splicing rod 22.
The upper end section of the plug-in rod 22 is inserted into the sleeve at one end of the cantilever and is fixedly connected with the sleeve 23.
When cantilever member 2 and support frame 1 assemble, the inserted link inserts in support column 12, and the sleeve of cantilever 21 one end meets with support column 12, and the sleeve is the same with the cross section size of support column 12, can guarantee that cantilever member 2 can stably rotate when pleasing to the eye.
The hoisting tool is arranged on a main hoisting groove of the cantilever 21, the transverse position of the hoisting tool is moved along the main hoisting groove, and the cantilever 21 is rotated, so that the hoisting tool is positioned right above the center of the tap changer and is influenced by the gravity of the tap changer during hoisting, the friction force between the hoisting tool and the cantilever 21 is increased, the hoisting tool is prevented from sliding in the main hoisting groove, and the stability of the hoisting process is ensured. When the main transformer tapping switch with specific specifications is hoisted, the hoisting tool can be directly hung in the secondary hoisting hole on the cantilever 21, so that the debugging time is saved.
The hoisting tool can be selected as a chain hoist.
When the embodiment is used, the specific operations are as follows:
(1) and dismantling a flange cover at the top of the 110kV main transformer tap changer, fixing the support frame on the flange at the top of the tap changer, and inserting the insertion rod of the cantilever member into the support column.
(2) And installing the hoisting tool on the main hoisting groove, adjusting the position of the hoisting tool on the main hoisting groove, or directly installing the hoisting tool in a specific secondary hoisting hole, and rotating the cantilever member to enable the hoisting tool to be positioned right above the center of the tap changer.
(3) And hanging the hoisting point of the tap switch by the hoisting tool, and slowly hoisting the tap switch until the tap switch is completely hoisted away from the main transformer.
(4) And rotating the cantilever member to rotate the tap switch to the outer side of the main transformer, and slowly lowering the tap switch to the ground for overhauling. After the overhaul is finished, the tap changer is hoisted back to the main transformer, and the bracket assembly is dismantled.
In addition to the above embodiments, in other embodiments, a connecting plate may be fixed at a middle position of the arc length of the base, a sleeve may be fixed on the connecting plate, and the lower end of the supporting column may be inserted into the sleeve and then bolted by a radial pin, or the lower end of the supporting column may be screwed to the sleeve.
The utility model has the advantages that:
the safety is high: the bracket component has a simple structure, the strength meets the requirement, the traditional working mode that a tapping switch is lifted by a crane is replaced, the safety risk that the crane is used in a transformer substation is avoided, and the safety of personnel and equipment is greatly ensured.
The universality is strong: the hoisting groove and the hoisting hole are formed in the cantilever, the position of the hoisting tool is adjustable, the hoisting tool is basically suitable for all 110kV main transformer tap switches, and the universality is high.
Promote work efficiency, reduce the cost of overhaul: the special tool solves the difficult working problem that the crane is difficult to use when the indoor main transformer tap changer is overhauled, and compared with the working mode of using the crane hoisting core, the special tool can be used for rapidly completing the overhaul and the reinstallation of the tap changer, and the use cost of the crane is saved.
Claims (8)
1. The utility model provides a bracket component that is used for 110kV transformer on-load tap-changer to hang core which characterized in that: the assembly comprises a support frame and a cantilever member which is rotatably connected to the top of the support frame, wherein a base which is connected with a flange on the top surface of the tap changer is arranged at the lower end of the support frame, the cantilever member is used for installing a hoisting tool, and the installation position of the hoisting tool on a cantilever is adjustable.
2. The bracket assembly for the suspended core of the on-load tap-changer of the 110kV transformer as claimed in claim 1, wherein: the support frame includes base and support column, support column are hollow post.
3. The bracket assembly for the suspended core of the on-load tap-changer of the 110kV transformer as claimed in claim 2, wherein: the base is an arc-shaped plate, a round hole matched with a flange on the top surface of the tap switch is formed in the base, and the support column is fixed in the middle of the arc length of the base.
4. The bracket assembly for the suspended core of the on-load tap-changer of the 110kV transformer as claimed in claim 3, wherein: the arc length middle position of the base is fixed with a connecting plate, the lower end of the supporting column is fixed on the connecting plate, and a reinforcing rib plate is arranged between the supporting column and the connecting plate.
5. The bracket assembly for the suspended core of the on-load tap-changer of the 110kV transformer as claimed in claim 2, wherein: a connecting plate is fixed in the middle of the arc length of the base, and a sleeve is fixed on the connecting plate.
6. The bracket assembly for the suspended core of the on-load tap-changer of the 110kV transformer as claimed in claim 5, wherein: the lower end of the support column is inserted into the sleeve and then is connected with the sleeve through a radial pin, or the lower end of the support column is in threaded connection with the sleeve.
7. The bracket assembly for the suspended core of the on-load tap-changer of the 110kV transformer as claimed in claim 2, wherein: the cantilever member includes a cantilever and a bayonet rod connected at one end thereof.
8. The bracket assembly for the suspended core of the on-load tap-changer of the 110kV transformer as claimed in claim 7, wherein: the cantilever is provided with a strip-shaped groove and round holes with different apertures, and the strip-shaped groove and the round holes are respectively used for installing hoisting tools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123209889.9U CN216512373U (en) | 2021-12-20 | 2021-12-20 | Bracket component for on-load tap-changer (OLTC) suspension core of 110kV transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123209889.9U CN216512373U (en) | 2021-12-20 | 2021-12-20 | Bracket component for on-load tap-changer (OLTC) suspension core of 110kV transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216512373U true CN216512373U (en) | 2022-05-13 |
Family
ID=81500989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123209889.9U Active CN216512373U (en) | 2021-12-20 | 2021-12-20 | Bracket component for on-load tap-changer (OLTC) suspension core of 110kV transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216512373U (en) |
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2021
- 2021-12-20 CN CN202123209889.9U patent/CN216512373U/en active Active
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