CN202473589U - On-load tap-changer lifting frame - Google Patents
On-load tap-changer lifting frame Download PDFInfo
- Publication number
- CN202473589U CN202473589U CN2012200004066U CN201220000406U CN202473589U CN 202473589 U CN202473589 U CN 202473589U CN 2012200004066 U CN2012200004066 U CN 2012200004066U CN 201220000406 U CN201220000406 U CN 201220000406U CN 202473589 U CN202473589 U CN 202473589U
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- CN
- China
- Prior art keywords
- supporting leg
- suspension bracket
- pulley
- load tap
- lifting frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an on-load tap-changer lifting frame, which belongs to the technical field of transformers. The on-load tap-changer lifting frame comprises a lifting frame top, an outrigger, a pulley, a lifting hook and a tightener, wherein a fixed pulley is mounted on one outrigger; the on-load tap-changer lifting frame is characterized in that two fixed pulleys are respectively mounted at two positions of the lifting frame top, which are in central symmetry; one end of a steel cable is connected to the outrigger symmetric to the outrigger mounted with the fixed pulley; the other end of the steel cable is connected with the tightener after being wound on the two fixed pulleys on the lifting frame top and the fixed pulley on the outrigger; and a movable pulley mounted between the two fixed pulleys on the lifting frame top is connected with the lifting hook; and according to the utility model, stresses among all parts of the on-load tap-changer lifting frame are greatly reduced and more balanced, and relative friction forces among the parts of the on-load tap-changer lifting frame are greatly reduced.
Description
Technical field
The utility model relates to the transformer technology field, especially a kind of on-load tapping switch hanger that uses when on-load shunting switch is installed.
Background technology
China utility application prospectus CN101640115A has used when disclosing a kind of assembling or maintenance; Be used for the slinging on-load tapping switch hanger of on load tap changer, this utility model on-load tapping switch hanger comprises suspension bracket top, supporting leg, pulley, suspension hook, wire grip; Said suspension bracket top has a rectangular shape; Pulley is installed in the center on suspension bracket top, and the position, four angles on suspension bracket top is fixedly connected supporting leg respectively, and the bottom of every supporting leg connects a mobilizable leg; Wherein a supporting leg top fixedly mounts a pulley; Middle part fixed installation wire grip, wirerope is connected with wire grip through pulley, the pulley on the supporting leg on the suspension bracket top, and the wirerope end connects a suspension hook.
When this on-load tapping switch hanger used, the suspension hook that carries on-load shunting switch gravity was through wirerope, and pulley is installed in the center that on load tap changer gravity is acted on the suspension bracket top respectively; Wherein on hard-wired pulley in supporting leg top; Can make the stressed major part of whole suspension bracket act on that one side of something that the pulley supporting leg is installed like this, less stable in suspension bracket work, and also carrying the supporting leg of installation pulley of most of gravity, stressed other supporting legs are bigger relatively; Damage easily; This mechanism, wirerope and the stressed weight that equals whole on load tap changer basically of all pulleys, more fragile.
The bottom of every supporting leg of this on-load tapping switch hanger connects a mobilizable leg, is used for the pin that hangs on the flange of connection on load tap changer, and this connection is comparatively loaded down with trivial details, and easy shaking.
Summary of the invention
For above-mentioned problem; The purpose of the utility model is to provide a kind of and on the suspension bracket top, two fixed pulleys is housed; Through the on-load tapping switch hanger of movable pulley load-carrying is installed in the middle of two fixed pulleys of wirerope; The stressed suspension bracket center that is symmetrical in of this on-load tapping switch hanger, the Stability Analysis of Structures stress equalization, and wirerope stressed also has only the half the of on load tap changer gravity.
This real utility model solves the technical scheme that its technical problem adopted: this on-load tapping switch hanger; Comprise suspension bracket top, supporting leg, pulley, suspension hook, wire grip; On one of them supporting leg fixed pulley is housed; It is characterized in that: said suspension bracket top is equipped with two fixed pulleys respectively about centrosymmetric two positions; Wirerope one end is connected on the supporting leg that fixed pulley supporting leg symmetry is housed, and the other end is walked around two fixed pulleys on the suspension bracket top, the fixed pulley on the supporting leg is connected to wire grip, and the movable pulley that is loaded between two fixed pulleys on the said suspension bracket top is connected with suspension hook.
The pin that hangs that will be equipped with during work on the flange of on-load shunting switch fixes with supporting leg respectively; To be contained in the movable pulley hook and be loaded on the supercentral suspension ring of on load tap changer, through wire grip pulling wirerope, wirerope is walked around the fixed pulley on the suspension bracket top, the fixed pulley on the supporting leg; On load tap changer sling install or overhaul; According to the movable pulley principle, when the gravity of ignoring wirerope, suspension hook and movable pulley and various frictional force, wirerope is stressed to be the half the of on load tap changer gravity; It acts on the also less accordingly of two fixed pulleys and the fixed pulley on the supporting leg on the said suspension bracket top 1; Frictional force when it uses is also less relatively, and two fixed pulleys on the suspension bracket top are symmetrically distributed, and make on load tap changer to said on-load tapping switch hanger active force; Be distributed in its suspension bracket top and go up the place that two fixed pulleys are installed, Stability Analysis of Structures stress equalization.
As preferably, the bottom of said supporting leg is and the direct-connected articulated structure of on load tap changer.
As preferably, said supporting leg comprises supporting leg bar, the supporting leg seat that is threaded, said supporting leg seat bottom and the direct-connected articulated structure of on load tap changer.
As preferably, fixed pulley, wire grip are housed on the said supporting leg, said wirerope one end that is connected on the supporting leg is to be connected on the wire grip through fixed pulley.
The beneficial effect of the utility model is: this on-load tapping switch hanger pushes up through the suspension bracket that is split in of movable pulley structure with the gravity symmetry of on load tap changer; Make each other stressed less of this on-load tapping switch hanger self part, the highly stable stress equalization of this structure, wirerope stressed also have only about half of on load tap changer gravity; Pulling force was less when wire grip lifting loaded tap-off left like this; More easy to operate, and the frictional force between pulley and the wirerope is also less, not fragile; The useful life of this on-load tapping switch hanger is longer
Description of drawings
Fig. 1 is the structural representation of on-load tapping switch hanger;
Fig. 2 be supporting leg supporting leg in the on-load tapping switch hanger the bottom for the sketch map of the direct-connected articulated structure of on load tap changer;
Fig. 3 is that supporting leg comprises supporting leg bar, the supporting leg seat that is threaded in the on-load tapping switch hanger, and said supporting leg seat bottom is the sketch map with the direct-connected articulated structure of on load tap changer;
Fig. 4 is the structural representation that fixed pulley, wire grip all are housed on the on-load tapping switch hanger two symmetrical supporting legs.
Among the figure: 1, suspension bracket top; 2,21,22, supporting leg; 201, supporting leg bar; 202, supporting leg seat; 3, pulley; 31,32,33,35, fixed pulley; 34, movable pulley; 4, suspension hook; 5,51, wire grip; 6, wirerope.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
The utility model on-load tapping switch hanger in the embodiment shown in fig. 1; Comprise suspension bracket top 1, supporting leg 2, pulley 3, suspension hook 4, wire grip 5; On one of them supporting leg 21 fixed pulley 33 is housed; It is characterized in that: said suspension bracket top 1 is equipped with two fixed pulleys 31,32 respectively about centrosymmetric two positions, and supporting leg 22 relative supporting legs 21 are symmetrical about center, suspension bracket top, and wirerope 6 one ends are connected on the supporting leg 22; The other end is walked around the fixed pulley 31,32 on the suspension bracket top 1, the fixed pulley 33 on the supporting leg 21 is connected to wire grip 5, and two fixed pulleys 31, the movable pulley between 32 34 that are loaded on the said suspension bracket top 1 are connected with suspension hook 4.
This on-load tapping switch hanger with being split on the suspension bracket top 1 of the gravity of on load tap changer symmetry, makes each other stressed less of this on-load tapping switch hanger self part through the movable pulley structure, and its implementation procedure does; With reference to embodiment illustrated in fig. 1; During work, the pin that hangs on the flange that on-load shunting switch is installed is fixed with supporting leg 2 respectively, will be contained in movable pulley 34 hooks 4 and be loaded on the supercentral suspension ring of on load tap changer; Through wire grip 5 pulling wireropes 6; Wirerope 6 is walked around the fixed pulley 31,32 on the suspension bracket top 1, the fixed pulley 33 on the supporting leg 21, on load tap changer is sling installed or overhaul, according to the movable pulley principle; When the gravity of ignoring wirerope 6, suspension hook 4 and movable pulley 34 and various frictional force; Wirerope 6 is stressed to be the half the of on load tap changer gravity, and it acts on the also less accordingly of two fixed pulleys 31,32 and the fixed pulley 33 on the supporting leg 21 on the said suspension bracket top 1, and the frictional force when it uses is also less relatively; And two fixed pulleys 31,32 on the suspension bracket top 1 are symmetrically distributed; Make on load tap changer to said on-load tapping switch hanger active force, be distributed in the place of on its suspension bracket top 1 two fixed pulleys 31,32 being installed, the Stability Analysis of Structures stress equalization.Pulling force was less, more easy to operate when wire grip 5 lifting loaded tap-offs left like this, and the frictional force between pulley 3 and the wirerope 6 is also less, and is not fragile.
As shown in Figure 2; The bottom of said supporting leg 2 is and the direct-connected articulated structure of on load tap changer; Like this can be so that on the flange of supporting leg 2 direct connection on load tap changeres; The bottom of on-load tapping switch hanger supporting leg 2 does not have accessory structure, and junction and supporting leg 2 coaxial lines are stressed more stable.Improvement as 2 execution modes of supporting leg among Fig. 2; As shown in Figure 3, said supporting leg 2 comprises supporting leg bar 201, the supporting leg seat 202 that is threaded, said supporting leg seat 202 bottoms and the direct-connected articulated structure of on load tap changer; Convenient like this relative altitude of regulating each bar supporting leg; Make suspension bracket push up 1 level, suspension hook 4 is in suspension bracket and pushes up on 1 central horizontal axis during work, and is more stable.
As shown in Figure 4; Fixed pulley 35, wire grip 51 are housed on the said supporting leg 22; Said wirerope 6 one ends that are connected on the supporting leg 22 are to be connected on the wire grip 51 through fixed pulley 35, and all there is wire grip on both sides like this, and regulating can be convenient; And on-load tapping switch hanger is symmetrical, stressed more even more like this.
Generally speaking structure is comparatively simple in this, stressedly greatly reduces, and balanced more, can significantly reduce the frictional force of on-load tapping switch hanger, makes that its life-span is longer, and is also more stable during use.
Claims (4)
1. on-load tapping switch hanger; Comprise suspension bracket top, supporting leg, pulley, suspension hook, wire grip; On one of them supporting leg fixed pulley is housed; It is characterized in that: said suspension bracket top is equipped with two fixed pulleys respectively about centrosymmetric two positions, and the relative supporting leg of supporting leg is about center, suspension bracket top symmetry, and wirerope one end is connected on the supporting leg that fixed pulley is housed; The other end is walked around the fixed pulley on the suspension bracket top, the fixed pulley on the supporting leg is connected to wire grip, and the movable pulley that is loaded between two fixed pulleys on the said suspension bracket top is connected with suspension hook.
2. shunting switch suspension bracket according to claim 1 is characterized in that: the bottom of said supporting leg is and the direct-connected articulated structure of on load tap changer.
3. shunting switch suspension bracket according to claim 2 is characterized in that: said supporting leg comprises supporting leg bar, the supporting leg seat that is threaded, said supporting leg seat bottom and the direct-connected articulated structure of on load tap changer.
4. according to any described shunting switch suspension bracket in the claim 1 to 3, it is characterized in that: fixed pulley, wire grip are housed on the said supporting leg, and said wirerope one end that is connected on the supporting leg is to be connected on the wire grip through fixed pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200004066U CN202473589U (en) | 2012-01-04 | 2012-01-04 | On-load tap-changer lifting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200004066U CN202473589U (en) | 2012-01-04 | 2012-01-04 | On-load tap-changer lifting frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473589U true CN202473589U (en) | 2012-10-03 |
Family
ID=46921733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200004066U Expired - Fee Related CN202473589U (en) | 2012-01-04 | 2012-01-04 | On-load tap-changer lifting frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473589U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701091A (en) * | 2012-01-04 | 2012-10-03 | 吴江市东泰电力特种开关有限公司 | On-load tap-changer hanger frame |
| CN103407893A (en) * | 2013-07-26 | 2013-11-27 | 河南省电力公司信阳供电公司 | Movable suspension bracket for power installation |
| CN105932581A (en) * | 2016-06-15 | 2016-09-07 | 西电气有限公司 | Overhaul frame for vacuum circuit breaker |
-
2012
- 2012-01-04 CN CN2012200004066U patent/CN202473589U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701091A (en) * | 2012-01-04 | 2012-10-03 | 吴江市东泰电力特种开关有限公司 | On-load tap-changer hanger frame |
| CN103407893A (en) * | 2013-07-26 | 2013-11-27 | 河南省电力公司信阳供电公司 | Movable suspension bracket for power installation |
| CN105932581A (en) * | 2016-06-15 | 2016-09-07 | 西电气有限公司 | Overhaul frame for vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130104 |