CN201538637U - Suspension tool of on-load voltage-regulating switching switch suspended core of electric furnace - Google Patents
Suspension tool of on-load voltage-regulating switching switch suspended core of electric furnace Download PDFInfo
- Publication number
- CN201538637U CN201538637U CN2009200748568U CN200920074856U CN201538637U CN 201538637 U CN201538637 U CN 201538637U CN 2009200748568 U CN2009200748568 U CN 2009200748568U CN 200920074856 U CN200920074856 U CN 200920074856U CN 201538637 U CN201538637 U CN 201538637U
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- electric furnace
- load voltage
- brass plate
- hole
- suspended core
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Abstract
The utility model discloses a suspension tool of an on-load voltage-regulating switching switch suspended core of an electric furnace, comprising a brass plate; the center of the brass plate, close to the upper edge, is provided with a first through hole; and the two sides of the brass plate, close to the center of the lower edge, are provided with a second through hole and a third through hole at equal interval. The suspension tool can be convenient and safe to carry out hoisting operation of the on-load voltage-regulating switching switch suspended core of the electric furnace, guarantee the operation of maintenance of the electric furnace and avoid the potential safety hazard in the operation process.
Description
Technical field
The utility model relates to a kind of lifting device of electric furnace on-load voltage regulation change-over switch suspended core.
Background technology
During electric furnace used, electric furnace on-load voltage regulation change-over switch acted frequently, and the impact of bearing big electric current during the action of on-load voltage regulation change-over switch produces a large amount of uncombined carbons; Usually the general suspended core that needed to carry out the on-load voltage regulation change-over switch in about a year overhauls once, belongs to comparatively frequent maintenance.The generally on-the-spot suspended core processing in the furnace transformer storehouse of change-over switch suspended core, chain block is set up in this operation usually, carry out the suspended core lifting by the form that iron chains, hook etc. is flexible coupling, two stress points that symmetry is arranged on the change-over switch, two stress points of change-over switch are fixed at the hoist cable two ends, and the hoist cable mid point is hung on the hook end of chain block, and so hoist cable forms an equilateral triangle, owing to stress balance, change-over switch does not produce moment of rotation under the normal circumstances; When rocking if change-over switch is subjected to the external force effect, equilateral triangle will be out of shape, owing to be subjected to force unbalance, produce moment of rotation, this moment of rotation will make change-over switch produce bigger rocking, and bigger rocking may break change-over switch, also may abrade the high-low pressure porcelain bushing of change-over switch, cause the safety misadventure of the equipment or the person, have bigger potential safety hazard.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of lifting device of electric furnace on-load voltage regulation change-over switch suspended core, utilize the lifting operation that this lifting device can make things convenient for, safety is carried out electric furnace on-load voltage regulation change-over switch suspended core, guarantee the operation of electric furnace maintenance, stopped the potential safety hazard in the operation process.
For solving the problems of the technologies described above, the lifting device of the utility model electric furnace on-load voltage regulation change-over switch suspended core comprises a brass plate, nearly upper edge, described brass plate center has first through hole, and both sides, center, the nearly lower edge of described brass plate equidistantly have second through hole and third through-hole.
For adapting to the lifting of different change-over switches, both sides, center, the nearly lower edge of above-mentioned brass plate also equidistantly have some fourth holes and fifth hole.
For reducing the cost of manufacture of brass plate, above-mentioned brass plate adopts trapezoidal shape.
Because the lifting device of the utility model electric furnace on-load voltage regulation change-over switch suspended core has adopted technique scheme, promptly adopts a brass plate as suspender, upper edge, brass plate center has through hole, and both sides, center, brass plate lower edge equidistantly have two through holes; Utilize the lifting operation that this lifting device can make things convenient for, safety is carried out electric furnace on-load voltage regulation change-over switch suspended core, guaranteed the operation of electric furnace maintenance, stopped the potential safety hazard in the operation process.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the structural representation of the lifting device of the utility model electric furnace on-load voltage regulation change-over switch suspended core.
The specific embodiment
As shown in Figure 1, the lifting device of the utility model electric furnace on-load voltage regulation change-over switch suspended core comprises a brass plate 1, nearly upper edge, described brass plate 1 center has first through hole 2, and both sides, described brass plate 1 nearly center, lower edge equidistantly have second through hole 31 and third through-hole 32.
For adapting to the lifting of different change-over switches 6, both sides, above-mentioned brass plate 1 nearly center, lower edge also equidistantly have some fourth holes 41 and fifth hole 42.
For reducing the cost of manufacture of brass plate 1, above-mentioned brass plate 1 adopts trapezoidal shape.
The lifting device of the utility model electric furnace on-load voltage regulation change-over switch suspended core adopts a brass plate 1 as suspender, and upper edge, brass plate 1 center has first through hole 2, and both sides, center, brass plate 1 lower edge equidistantly have two second through holes 31 and third through-hole 32; During the work of this lifting device, a hoist cable 5 is fixed between first through hole 2 and chain block hook of brass plate 1 upper edge, in addition two hoist cables 61 and 62 are individually fixed between two stress points of two second through holes 31 of brass plate 1 lower edge and third through-hole 32 and change-over switch 6, spur the lifting operation that chain block can carry out change-over switch easily and safely this moment, and it can the run-off the straight owing to change-over switch in the hoisting process is subjected to external force; Utilize the lifting operation that this lifting device can make things convenient for, safety is carried out electric furnace on-load voltage regulation change-over switch suspended core, guaranteed the operation of electric furnace maintenance, stopped the potential safety hazard in the operation process.
Claims (3)
1. the lifting device of an electric furnace on-load voltage regulation change-over switch suspended core, it is characterized in that: comprise a brass plate, nearly upper edge, described brass plate center has first through hole, and both sides, center, the nearly lower edge of described brass plate equidistantly have second through hole and third through-hole.
2. the lifting device of electric furnace on-load voltage regulation change-over switch suspended core according to claim 1 is characterized in that: both sides, center, the nearly lower edge of described brass plate also equidistantly have some fourth holes and fifth hole.
3. the lifting device of electric furnace on-load voltage regulation change-over switch suspended core according to claim 1, it is characterized in that: described brass plate is a trapezoidal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200748568U CN201538637U (en) | 2009-07-17 | 2009-07-17 | Suspension tool of on-load voltage-regulating switching switch suspended core of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200748568U CN201538637U (en) | 2009-07-17 | 2009-07-17 | Suspension tool of on-load voltage-regulating switching switch suspended core of electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201538637U true CN201538637U (en) | 2010-08-04 |
Family
ID=42590091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200748568U Expired - Fee Related CN201538637U (en) | 2009-07-17 | 2009-07-17 | Suspension tool of on-load voltage-regulating switching switch suspended core of electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201538637U (en) |
-
2009
- 2009-07-17 CN CN2009200748568U patent/CN201538637U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20120717 |