CN102701091A - On-load tap-changer hanger frame - Google Patents
On-load tap-changer hanger frame Download PDFInfo
- Publication number
- CN102701091A CN102701091A CN2012100002578A CN201210000257A CN102701091A CN 102701091 A CN102701091 A CN 102701091A CN 2012100002578 A CN2012100002578 A CN 2012100002578A CN 201210000257 A CN201210000257 A CN 201210000257A CN 102701091 A CN102701091 A CN 102701091A
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- supporting leg
- suspension bracket
- pulley
- fixed pulley
- hanger frame
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Abstract
The invention provides an on-load tap-changer hanger frame, belongs to the technical field of transformers. The on-load tap-changer hanger frame comprises a hanger frame top, landing legs, pulleys, a lifting hook and a wire grip, wherein one landing leg is provided with a fixed pulley. The on-load tap-changer hanger frame is characterized in that the hanger frame top is respectively provided with two fixed pulleys at two positions symmetric about the center, one end of a steel cable is connected with a landing leg which is symmetric to the landing leg provided with the fixed pulley, the other end of the steel cable bypasses the two fixed pulleys on the hanger frame top and the fixed pulley on the landing leg and then is connected with the wire grip, a movable pulley arranged between the two fixed pulley on the hanger frame top is connected with the lifting hook, stress between every two parts of the on-load tap-changer hanger frame is greatly reduced and is more balanced, and the relative frictional force between every two parts of the on-load tap-changer hanger frame is greatly reduced.
Description
Technical field
The present invention 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
Chinese invention patent ublic specification of application CN101640115A has used when disclosing a kind of assembling or maintenance; Be used for the slinging on-load tapping switch hanger of load ratio bridging switch, this invents on-load tapping switch hanger, comprises suspension bracket top, supporting leg, pulley, suspension hook, turnbuckle; 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 the captive joint 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 turnbuckle, wirerope is connected with turnbuckle 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 load ratio bridging switch 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 load ratio bridging switch 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 load ratio bridging switch, and this connection is comparatively loaded down with trivial details, and easy shaking.
Summary of the invention
For above-mentioned problem; The object of the present invention is to provide and a kind ofly on suspension bracket top, two fixed pulleys are 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 load ratio bridging switch gravity.
The invention of this reality solves the technical scheme that its technical matters adopted: this on-load tapping switch hanger; Comprise suspension bracket top, supporting leg, pulley, suspension hook, turnbuckle; 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 turnbuckle, 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 load ratio bridging switch, through turnbuckle pulling wirerope, wirerope is walked around the fixed pulley on the suspension bracket top, the fixed pulley on the supporting leg; Load ratio bridging switch sling install or overhaul; According to the movable pulley principle, when the gravity of ignoring wirerope, suspension hook and movable pulley and various friction force, wirerope is stressed to be the half the of load ratio bridging switch 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; Friction force when it uses is also less relatively, and two fixed pulleys on the suspension bracket top are symmetrically distributed, and make load ratio bridging switch to said on-load tapping switch hanger application 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 coupled articulated structure of load ratio bridging switch.
As preferably, said supporting leg comprises supporting leg bar, the supporting leg seat that is threaded, said supporting leg seat bottom and the direct coupled articulated structure of load ratio bridging switch.
As preferably, fixed pulley, turnbuckle are housed on the said supporting leg, said wirerope one end that is connected on the supporting leg is to be connected on the turnbuckle through fixed pulley.
Beneficial effect of the present invention 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 load ratio bridging switch; 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 load ratio bridging switch gravity; Pulling force was less when turnbuckle lifting loaded tap-off left like this; More easy to operate, and the friction force between pulley and the wirerope is also less, not fragile; The service 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 scheme drawing of the direct coupled articulated structure of load ratio bridging switch;
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 scheme drawing with the direct coupled articulated structure of load ratio bridging switch;
Fig. 4 is the structural representation that fixed pulley, turnbuckle 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, turnbuckle; 6, wirerope.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
On-load tapping switch hanger of the present invention in the embodiment shown in fig. 1; Comprise suspension bracket top 1, supporting leg 2, pulley 3, suspension hook 4, turnbuckle 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 turnbuckle 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 load ratio bridging switch 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 load ratio bridging switch; Through turnbuckle 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, load ratio bridging switch 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 friction force; Wirerope 6 is stressed to be the half the of load ratio bridging switch 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 friction force when it uses is also less relatively; And two fixed pulleys 31,32 on the suspension bracket top 1 are symmetrically distributed; Make load ratio bridging switch to said on-load tapping switch hanger application 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 turnbuckle 5 lifting loaded tap-offs left like this, and the friction 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 coupled articulated structure of load ratio bridging switch; Like this can be so that supporting leg 2 direct connections are equipped with on the flange of on-load shunting switch; 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 embodiments 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 coupled articulated structure of load ratio bridging switch; Convenient like this relative height 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, turnbuckle 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 turnbuckle 51 through fixed pulley 35, and all there is turnbuckle 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 friction 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, turnbuckle; 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 turnbuckle, 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 coupled articulated structure of load ratio bridging switch.
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 coupled articulated structure of load ratio bridging switch.
4. according to any described shunting switch suspension bracket in the claim 1 to 3, it is characterized in that: fixed pulley, turnbuckle 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 turnbuckle through fixed pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100002578A CN102701091A (en) | 2012-01-04 | 2012-01-04 | On-load tap-changer hanger frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100002578A CN102701091A (en) | 2012-01-04 | 2012-01-04 | On-load tap-changer hanger frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102701091A true CN102701091A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100002578A Pending CN102701091A (en) | 2012-01-04 | 2012-01-04 | On-load tap-changer hanger frame |
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| Country | Link |
|---|---|
| CN (1) | CN102701091A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104085806A (en) * | 2014-07-04 | 2014-10-08 | 国家电网公司 | Lifter |
| CN110993262A (en) * | 2019-11-29 | 2020-04-10 | 北京中科中电电力工程管理有限公司 | Transformer installation process and equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03218003A (en) * | 1990-01-23 | 1991-09-25 | Meidensha Corp | Fixing method of on-load tap changer |
| JP3245880B2 (en) * | 1991-05-07 | 2002-01-15 | 富士電機株式会社 | Lifting device for load tap changer |
| CN2473173Y (en) * | 2001-03-05 | 2002-01-23 | 刘克勤 | Pulley type suspending arm hoist |
| CN201367312Y (en) * | 2008-11-08 | 2009-12-23 | 高台县黄河种苗繁育基地 | Loading suspender of platform |
| CN101640115A (en) * | 2008-07-28 | 2010-02-03 | 淄博供电公司 | On-load tapping switch hanger |
| CN201817223U (en) * | 2010-07-12 | 2011-05-04 | 河南省电力公司驻马店供电公司 | Suspension device for on-load tapping switches of transformers |
| CN202054546U (en) * | 2011-03-24 | 2011-11-30 | 徐州工业职业技术学院 | Pulley-type manhole cover lifting tool |
| CN202473589U (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 lifting frame |
-
2012
- 2012-01-04 CN CN2012100002578A patent/CN102701091A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03218003A (en) * | 1990-01-23 | 1991-09-25 | Meidensha Corp | Fixing method of on-load tap changer |
| JP3245880B2 (en) * | 1991-05-07 | 2002-01-15 | 富士電機株式会社 | Lifting device for load tap changer |
| CN2473173Y (en) * | 2001-03-05 | 2002-01-23 | 刘克勤 | Pulley type suspending arm hoist |
| CN101640115A (en) * | 2008-07-28 | 2010-02-03 | 淄博供电公司 | On-load tapping switch hanger |
| CN201367312Y (en) * | 2008-11-08 | 2009-12-23 | 高台县黄河种苗繁育基地 | Loading suspender of platform |
| CN201817223U (en) * | 2010-07-12 | 2011-05-04 | 河南省电力公司驻马店供电公司 | Suspension device for on-load tapping switches of transformers |
| CN202054546U (en) * | 2011-03-24 | 2011-11-30 | 徐州工业职业技术学院 | Pulley-type manhole cover lifting tool |
| CN202473589U (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 lifting frame |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104085806A (en) * | 2014-07-04 | 2014-10-08 | 国家电网公司 | Lifter |
| CN104085806B (en) * | 2014-07-04 | 2016-02-03 | 国家电网公司 | A kind of elevator |
| CN110993262A (en) * | 2019-11-29 | 2020-04-10 | 北京中科中电电力工程管理有限公司 | Transformer installation process and equipment |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |