CN201570809U - Multi-fulcra support type paying-off tackle - Google Patents
Multi-fulcra support type paying-off tackle Download PDFInfo
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- CN201570809U CN201570809U CN2009202226897U CN200920222689U CN201570809U CN 201570809 U CN201570809 U CN 201570809U CN 2009202226897 U CN2009202226897 U CN 2009202226897U CN 200920222689 U CN200920222689 U CN 200920222689U CN 201570809 U CN201570809 U CN 201570809U
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- pulley
- train
- payingoff
- guide roller
- trolley
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- 238000007759 kiss coating Methods 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 8
- 229920001778 nylon Polymers 0.000 claims description 8
- 239000004020 conductor Substances 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 7
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- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000004993 binary fission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to a novel multi-fulcra support type paying-off tackle, including a support, a suspending board mounted on the upper side of the support, and a wheel train fixed on the support through supporting shafts and yoke plates, wherein the wheel train includes wire rope wheel trains and conductor wheel trains arranged on two sides of the wheel train symmetrically, each wire rope wheel train and conductor wheel train are all composed of minor-diameter pulley set. According to the utility model, by means of the minor-diameter pulley sets, the curvature radius of the wheel train is great, such that bending damnify of conductors is reduced; integral dimension and weight of the paying-off tackle are all reduced greatly, which is convenient to transport and use, furthermore, the diameter of single pulley is small, such that material and machining/manufacturing cost are all reduced. The pulley wheel groove is in a semi-mounted gum double-R shape, such that conductor wear abrasion across the paying-off tackle is reduced greatly.
Description
Technical field
The utility model belongs to high pressure overhead power line tension stringing construction equipment field, is specifically related to a kind of many fulcrums supporting payingoff trolley.
Background technology
In the unwrapping wire process, lead is to be put on the circuit by being suspended on the releasing pulley on each shaft tower, opening up in turn.Unwrapping wire finishes, and lead is tensioned to degree of the speeding value of requirement again in releasing pulley.In whole air line working process, releasing pulley one direct sum lead contact has direct relation to the wearing and tearing of lead etc.Because the adjustment of lead sag (sag) is also carried out on releasing pulley, so how rapidly releasing pulley to, adjust lead degree of speeding accurately, especially to the adjustment of multiple fission conductor degree of speeding, also has very big influence.
Adopt the large-section lead transmission of electricity can reduce line loss, conductive line surfaces field intensity, radio interference and audible noise, improve energy transfer efficiency, reduce engineering overall investment and operating cost, guiding following large-section lead application and development direction, significant technical economic benefit and application prospects are arranged, meet the implementation management theory of State Grid Corporation of China's " amphitypy three is new ".
At present, EHV transmission engineering and the construction of ultra high voltage demonstration project are in full swing.Along with the raising of electric pressure, the sectional dimension of matching used transmission pressure and weight is also in continuous increase, thereby the payingoff construction relevant device has been proposed requirements at the higher level.
Releasing pulley is the requisite key equipment of high pressure overhead power line tension stringing, and guardwire, raising payingoff construction efficient are played an important role.Current widely used releasing pulley is the single-sheaved block supporting form, i.e. a solid conductor pulley support by releasing pulley.Along with the increase of diameter of wire, the width of pulley certainly will increase, thereby is that bending damage when reducing lead by pulley and the contact area that increases lead and pulley alleviate the lead wearing and tearing to reduce contact pressure simultaneously, requires the diameter of pulley also must to increase thereupon; The increase of wire weight then requires correspondingly to improve the intensity of pulley and coaster body, and above factor causes opening up the weight of amplifying the used releasing pulley of cross section lead significantly to be increased, and causes very big inconvenience for payingoff construction (transportation of releasing pulley and installation).
Current widely used traditional releasing pulley can be divided into single-wheel releasing pulley, three wheel line tackles, five wheel line tackles, seven-wheel line tackle and nine wheel line tackles according to the difference of pulley number, can satisfy the needs that single conductor, double bundle conductor, conductors on quad bundled, six-multiple conductor and eight bundle conductors are put in disposable exhibition respectively.For the above releasing pulley of single-wheel, releasing pulley such as take turns as three-wheel, five, intermediate pulley is a wire rope pulley, in order to by guiding rope and pull rope, the pulley that bilateral symmetry is arranged is a guide roller, in order to pass through lead; To the single-wheel releasing pulley, guiding rope, pull rope and lead all pass through in this single-wheel.Be to be used to open up tradition five wheel line tackles of putting conductors on quad bundled shown in Fig. 1-a and Fig. 1-b, it is made up of main parts size such as link plate 1, support 2, wire rope pulley 3, four guide rollers 4, lead backplates 6, above-mentioned wire rope pulley and guide roller are installed on the same single mandrel 5, also can freely rotate around axle, the axle two ends then are fixed on the releasing pulley support, and connectors such as use steel wire rope hang on releasing pulley on the transmission tower or directly by the suppending hole on the link plate and hang on the insulator string.
According to conventional design method, according to " pulley block basic demand, inspection provision and method of testing "-DL/T685-1999 requirement, the span in footpath is roughly 20 times of diameters of wire at the bottom of the lead pulley grooved, can cause footpath, the end increase gradually of gin block along with the continuous increase of conductor cross-section, cause the pulley volume and weight constantly to increase thereupon, exposing defective mainly shows as: strengthened production cost on the one hand, improved difficulty of processing; On the other hand transportation carrying and site operation installation are brought great inconvenience, have a strong impact on efficiency of construction.
Along with developing rapidly of large-section lead transmission of electricity, the design reference (20 times of diameters of wire) in footpath can not adapt to the demand for development of large-section lead gin block at the bottom of the pulley.Changing the gin block structure, alleviate pulley weight and satisfy on-the-spot payingoff construction requirement, do not violate " pulley block basic demand, inspection provision and method of testing "-DL/T685-1999 standard code again simultaneously, is the key that the present invention will solve.
The utility model content
For overcoming the defective of prior art, the purpose of this utility model be to provide a kind of volume little, in light weight, effectively improve pulley many fulcrums supporting payingoff trolley in useful life, efficiently solve and be used to open up the releasing pulley overall dimension of amplifying the cross section lead and weight is big, processing cost is high, transportation and use a difficult problem such as inconvenience.
For achieving the above object, the utility model is taked following technical scheme:
A kind of many fulcrums supporting payingoff trolley, comprise support, rack-mount portion link plate, be fixed on train on the support by bolster and yoke plate, described train comprises the wire rope pulley train and is symmetrically distributed in the guide roller train of its both sides that wherein said each wire rope pulley train and each guide roller train are formed by the minor diameter pulley.
Wherein, the number of described wire rope pulley train and guide roller train medium-small diameter pulley is 3.
Wherein, the race of each minor diameter pulley is R shape groove in described wire rope pulley train and the guide roller train, circular arc by two kinds of radiuses is formed: i.e. orthodrome groove and little arc groove, the bottom opening place of described orthodrome groove is provided with a little arc groove, and the center of circle consistency from top to bottom of the two, is located along the same line.
Wherein, in described guide roller train, be equipped with a kiss-coating layer on the wall of the orthodrome groove of each minor diameter pulley and little arc groove.
Wherein, the number of described wire rope pulley train is one, and the number of guide roller train is an even number.
Wherein, be connected with block on the described support, be positioned at the top of guide roller train.
Wherein, described minor diameter pulley adopts the MC nylon pulley, more preferably, can adopt the injection moulding nylon pulley.
The beneficial effects of the utility model are:
1) many fulcrums supporting payingoff trolley of the present utility model uses the train of being made up of a plurality of minor diameter pulleys to replace the single major diameter pulley of traditional releasing pulley; in order to keep the consistency of structure; the major diameter wire rope pulley of tradition releasing pulley also uses the train of being made up of a plurality of minor diameter pulleys to replace, and can play the effect of protection guiding rope and pull rope simultaneously.Lead is contacted by a fulcrum with releasing pulley and becomes many fulcrum contacts, with each minor diameter pulley a contact area is arranged all; The radius of curvature of the support that provides for lead becomes envelope radius by the race bottom land outline line of a plurality of minor diameter pulleys by the radius of major diameter pulley, guarantee contact area and radius of curvature requirement according to parameters such as the diameter of rationally being determined the minor diameter pulley by the cross section parameter of spreading conducting wire, positions, thus reduced lead bending, reduced the wearing and tearing of lead.Because the size of minor diameter pulley and weight, therefore can reduce overall dimensions and weight, reduction processing and manufacturing expense, the convenient transportation of releasing pulley much smaller than the major diameter pulley of traditional releasing pulley and use;
2) race of the minor diameter pulley in the utility model releasing pulley adopts the two R shape grooves of kiss-coating, effectively reduces the wearing and tearing of race to lead; Adopt the structure that the kiss-coating layer is set on the wheel cell wall, more prolonged the useful life of lead;
3) the minor diameter pulley in the utility model releasing pulley adopts novel injection moulding nylon material to be processed into by injection moulding, has excellent mechanical property, and is especially more outstanding aspect cold brittleness, and injection moulding processing is higher than spun casting production efficiency.
Description of drawings
Fig. 1 is the structural representation of five wheel line tackles in the prior art, and wherein Fig. 1-a is the front view of prior art releasing pulley, and Fig. 1-b is the end view of Fig. 1-a, wherein: 1-link plate, 2-support, 3-wire rope pulley, 4-guide roller, 5-axle, 6-lead backplate.
Fig. 2 is the front view of many fulcrums supporting payingoff trolley of the present utility model;
Fig. 3 is the end view of Fig. 2;
Fig. 4 is the profile of guide roller train medium-small diameter pulley
Fig. 5 is the profile of steel wire rope train medium-small diameter pulley;
Wherein: 7-support, 8-link plate, 9-wire rope pulley train, 10-guide roller train, 11-back shaft, 12-minor diameter pulley, 13-yoke plate, 14-orthodrome groove, the little arc groove of 15-, 16-kiss-coating layer, 17-block.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
As Fig. 2, shown in Figure 3, this example is three train releasing pulleys, comprise a wire rope pulley train 9 and two guide roller trains 10, wire rope pulley train 9 is in order to restrict and pull rope by guiding, guide roller train 10 is in order to pass through lead, and wire rope pulley train 9 is installed on the support 7 by back shaft 11 and yoke plate 13, and the guide roller train is arranged symmetrically in wire rope pulley train both sides, can be used for exhibition and put the binary fission lead, the top of support 7 is equipped with the top that link plate 8 and link plate are positioned at each train.Each train is formed by three minor diameter pulleys 12, and the minor diameter pulley can freely rotate around back shaft 11 separately, and block 17 is installed on the support, and this block is positioned at the top of guide roller train 10 Centromedian minor diameter pulleys 12.In order to reduce the wearing and tearing of race to lead, the race of each minor diameter pulley 12 adopts double R groove shaped and, a little arc groove promptly big by two kinds of radiuses formed, the bottom opening place of described orthodrome groove 14 is provided with a little arc groove 15, and the center of circle consistency from top to bottom of the two, is located along the same line.For the better protection lead, can be provided with a chamfering in the junction of large and small arc groove.
As shown in Figure 4, in order to reduce the wearing and tearing of race to lead, the race of guide roller train 10 medium-small diameter pulleys 12 is adopted semi-mounted glue mode, promptly on the wall of the orthodrome groove 14 of guide roller train 10 medium-small diameter pulleys 12 and little arc groove 15, be equipped with kiss-coating layer 16.Described kiss-coating layer adopts elastomeric material, it can attach to the kiss-coating layer on the race cell wall of minor diameter pulley 12 by binding agent, perhaps kiss-coating layer 16 is pressed on the cell wall by hot pressing mode, saved the use of binding agent with this, avoid kiss-coating layer 16 to damage the trouble that glue is removed in the back, can make things convenient for the replacing of kiss-coating layer.Described minor diameter pulley 12 can adopt the MC nylon material to make by spun casting technology, more preferably, can adopt the injection moulding nylon material to be processed into by injection moulding, by contrast, the minor diameter pulley 12 that adopts injection moulding nylon to make has excellent mechanical property, especially more outstanding aspect cold brittleness, and injection moulding processing is higher than spun casting production efficiency.
According to race size, groover rot diameter and the quantity of being determined the minor diameter pulley by the distance between the sectional dimension of spreading conducting wire and the shaft tower, three train releasing pulleys or five train releasing pulleys that the quantity of described minor diameter pulley is arranged to 3 minor diameter pulleys are excellent, the envelope of race bottom land outline line that guarantees the minor diameter pulley of same train has bigger radius of curvature, is generally by 20～30 times of the spreading conducting wire diameter or is not less than this numerical value.Adopt many fulcrums supporting payingoff trolley of said structure scheme to have the following advantages:
1) radius of curvature of the train of minor diameter pulley composition is bigger, has alleviated the bending damage of lead;
2) lead becomes many fulcrum contacts (all contacting with each minor diameter pulley) with the single fulcrum contact that contacts by traditional releasing pulley of releasing pulley, along with increasing of contact point, the contact pressure of single contact point decreases, and also the semi-mounted glue-line is set to alleviate the wearing and tearing of lead when the releasing pulley by the two R shape race cell walls at guide roller train medium-small diameter pulley;
3) owing to adopted many fulcrums support scheme, the overall dimensions and the weight of releasing pulley significantly reduce, and have made things convenient for transportation and use, and the single diameter of pulley in the train is less in addition, have reduced material and have used and the processing and manufacturing expense.
The utility model is by rational selection, according to the parameters such as race size, diameter and position of being determined the minor diameter pulley by characteristics such as the sectional dimension of spreading conducting wire and weight, the releasing pulley that adopts many fulcrums supporting way is under the prerequisite that alleviates the lead damage, overall dimension and weight can reduce greatly, not only reduced the processing and manufacturing expense, also make things convenient for transportation and on-the-spot the use, will produce bigger economic benefit and social benefit.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (8)
1. fulcrum supporting payingoff trolley more than a kind, comprise support (7), rack-mount portion link plate (8), be fixed on train on the support by bolster (11) and yoke plate (13), described train comprises wire rope pulley train (9) and is symmetrically distributed in the guide roller train (10) of its both sides, it is characterized in that: described wire rope pulley train (9) and guide roller train (10) are formed by minor diameter pulley (12).
2. many fulcrums supporting payingoff trolley as claimed in claim 1 is characterized in that: the number of described wire rope pulley train (9) and guide roller train (10) medium-small diameter pulley (12) is 3.
3. many fulcrums supporting payingoff trolley as claimed in claim 1 or 2, it is characterized in that: the race of each minor diameter pulley (12) is R shape groove in described wire rope pulley train (9) and the guide roller train (10), circular arc by two kinds of radiuses is formed: i.e. orthodrome groove (14) and little arc groove (15), the bottom opening place of described orthodrome groove is provided with a little arc groove, and the center of circle consistency from top to bottom of the two, is located along the same line.
4. many fulcrums supporting payingoff trolley as claimed in claim 3 is characterized in that: be equipped with a kiss-coating layer (16) in described guide roller train (10) on the wall of the orthodrome groove (14) of each minor diameter pulley (12) and little arc groove (15).
5. many fulcrums supporting payingoff trolley as claimed in claim 1 is characterized in that: the number of described wire rope pulley train (9) is one, and the number of guide roller train (10) is an even number.
6. many fulcrums supporting payingoff trolley as claimed in claim 1 is characterized in that: be connected with block (17) on the described support (7), be positioned at the top of guide roller train (10).
7. many fulcrums supporting payingoff trolley as claimed in claim 1 or 2 is characterized in that: described minor diameter pulley (12) adopts the MC nylon pulley.
8. many fulcrums supporting payingoff trolley as claimed in claim 1 or 2 is characterized in that: described minor diameter pulley (12) adopts the injection moulding nylon pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202226897U CN201570809U (en) | 2009-09-17 | 2009-09-17 | Multi-fulcra support type paying-off tackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202226897U CN201570809U (en) | 2009-09-17 | 2009-09-17 | Multi-fulcra support type paying-off tackle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570809U true CN201570809U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202226897U Expired - Lifetime CN201570809U (en) | 2009-09-17 | 2009-09-17 | Multi-fulcra support type paying-off tackle |
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| Country | Link |
|---|---|
| CN (1) | CN201570809U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401176A (en) * | 2013-06-06 | 2013-11-20 | 蒲召文 | Energy-saving general lead laying pulley |
| CN104037664A (en) * | 2014-06-27 | 2014-09-10 | 国家电网公司 | Net sealing trolley |
| CN104242143A (en) * | 2013-06-07 | 2014-12-24 | 张书豪 | Self-adaptive wire-releasing pulley |
| CN104901224A (en) * | 2014-03-05 | 2015-09-09 | 宜兴市博宇电力机械有限公司 | Cast polyurethane elastomer multi-wheel combined pulley in pulley groove |
| CN105932597A (en) * | 2016-06-03 | 2016-09-07 | 云南电网有限责任公司昆明供电局 | Linear tackle for adjusting sag of vertical double-split conductor |
| CN108418137A (en) * | 2018-04-19 | 2018-08-17 | 金华铂腾科技有限公司 | A kind of mono-track conducting wire running gear and a kind of mono-track robot |
| CN109510104A (en) * | 2018-11-20 | 2019-03-22 | 天津送变电工程有限公司 | A kind of pulley gear reducing payingoff construction frictional force |
| CN110261095A (en) * | 2019-07-23 | 2019-09-20 | 广东电网有限责任公司 | A kind of tension stringing experimental rig |
| CN114123035A (en) * | 2021-11-29 | 2022-03-01 | 国网安徽省电力有限公司滁州市城郊供电公司 | Wire drag and drop pulley |
| CN114336409A (en) * | 2021-12-31 | 2022-04-12 | 浙江天弘机器人科技有限公司 | Balance bridge type power intelligent pulley |
| CN114614400A (en) * | 2022-03-16 | 2022-06-10 | 山东送变电工程有限公司 | Multi-wheel combined paying-off tackle |
-
2009
- 2009-09-17 CN CN2009202226897U patent/CN201570809U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401176A (en) * | 2013-06-06 | 2013-11-20 | 蒲召文 | Energy-saving general lead laying pulley |
| CN104242143A (en) * | 2013-06-07 | 2014-12-24 | 张书豪 | Self-adaptive wire-releasing pulley |
| CN104901224A (en) * | 2014-03-05 | 2015-09-09 | 宜兴市博宇电力机械有限公司 | Cast polyurethane elastomer multi-wheel combined pulley in pulley groove |
| CN104037664A (en) * | 2014-06-27 | 2014-09-10 | 国家电网公司 | Net sealing trolley |
| CN105932597A (en) * | 2016-06-03 | 2016-09-07 | 云南电网有限责任公司昆明供电局 | Linear tackle for adjusting sag of vertical double-split conductor |
| CN108418137B (en) * | 2018-04-19 | 2024-07-12 | 金华铂腾科技有限公司 | Single track wire running gear and single track robot |
| CN108418137A (en) * | 2018-04-19 | 2018-08-17 | 金华铂腾科技有限公司 | A kind of mono-track conducting wire running gear and a kind of mono-track robot |
| CN109510104A (en) * | 2018-11-20 | 2019-03-22 | 天津送变电工程有限公司 | A kind of pulley gear reducing payingoff construction frictional force |
| CN110261095A (en) * | 2019-07-23 | 2019-09-20 | 广东电网有限责任公司 | A kind of tension stringing experimental rig |
| CN114123035A (en) * | 2021-11-29 | 2022-03-01 | 国网安徽省电力有限公司滁州市城郊供电公司 | Wire drag and drop pulley |
| CN114123035B (en) * | 2021-11-29 | 2023-12-19 | 国网安徽省电力有限公司滁州市城郊供电公司 | Wire drag-and-drop pulley |
| CN114336409A (en) * | 2021-12-31 | 2022-04-12 | 浙江天弘机器人科技有限公司 | Balance bridge type power intelligent pulley |
| CN114336409B (en) * | 2021-12-31 | 2023-12-08 | 浙江天弘机器人科技有限公司 | Balance bridge type power intelligent pulley |
| CN114614400A (en) * | 2022-03-16 | 2022-06-10 | 山东送变电工程有限公司 | Multi-wheel combined paying-off tackle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140311 Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140311 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140311 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
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| CX01 | Expiry of patent term |