CN104372769A - Production method of right-angle comb tooth type grab bucket - Google Patents
Production method of right-angle comb tooth type grab bucket Download PDFInfo
- Publication number
- CN104372769A CN104372769A CN201410606490.XA CN201410606490A CN104372769A CN 104372769 A CN104372769 A CN 104372769A CN 201410606490 A CN201410606490 A CN 201410606490A CN 104372769 A CN104372769 A CN 104372769A
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- China
- Prior art keywords
- comb
- grab bucket
- wire rope
- tooth
- production method
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
Abstract
The invention discloses a production method of a right-angle comb tooth type grab bucket, and relates to the field of repairing of a water inlet trash rack of a hydropower station. The right-angle comb tooth type grab bucket produced through the method is a special dirt cleaning device developed to resolve the particular problems in the dirt cleaning process of the hydropower station. The device is high in dirt cleaning capacity, high in work efficiency, low in equipment cost, simple in production process and convenient to operate. The position, 80 mm away from the tooth tip, of each steel wire rope comb tooth is bound through an iron wire, the strength of the comb teeth is improved, all wire ropes are prevented from being completely scattered and deforming when scum of the rack surface of the trash rack is combed vertically, a comb frame is of a T-type structure so that installation of comb teeth can be more convenient, a fastening nut is a double-nut locking nut, the wire ropes are prevented from loosening, firmness of the wire ropes is improved, a galvanized erosion-resistant coating is arranged on the surfaces of U-shaped wire rope clamps, and all welding spots and cut points are coated with bituminous epoxy paint after cutting. By the technological measures, the corrosion resistance of the right-angle comb tooth type grab bucket is improved, and the service life is long.
Description
Technical field
The present invention relates to intake of hydropower station trashrack maintenance field, be specifically related to the production method of a kind of right angle comb-tooth-type grab bucket.
Background technology
Hydropower Plant water inlet installing trashrack is the common schema of hydroelectric station design both at home and abroad at present, along with the operation of unit, the bits carried in current will be attached to trashrack grid face, affect passing through of current, finally cause before and after trashrack and form pressure reduction, unit net water head reduces, and finally causes unit output to decline; During start, under the suction under current direction, the grab bucket of removing contamination of trashrack grid face attachment quovis modo all cannot be removed, in order to thoroughly solve this difficult problem, the grab bucket form of removing contamination that the present invention adopts in conjunction with trashrack structure and most of power station, well solve this difficult problem, save a large amount of man power and material.
Summary of the invention
It is simple that problem to be solved by this invention is to provide a kind of production technology, good quality of product, the production method of the right angle comb-tooth-type grab bucket of removing contamination effective.
To achieve these goals, the technical scheme that the present invention takes for: the production method of a kind of right angle comb-tooth-type grab bucket provided, comprises following processing step:
(1) prepare 45 steel plates of welding, welding rod, wire rope and U-shaped wire rope clip, hole got through by steel plate;
(2) by two block plates along its length in 90 ° of welding, welded rear cooling naturally, the structure after welding is inverted T shape structure;
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth;
(4) three sections are cut into by being welded on the comb chassis fire weldering of removing contamination on the bucket tooth of grab bucket downstream;
(5) U-shaped wire rope clip is inserted on the steel plate of perforating, totally two, front and back, then insert U-shaped wire rope clip by wire rope one, and wire rope is with in the steel plate contact of upstream side, screw the fastening nut of U-shaped wire rope clip, want fastening Anti-loosen nut especially;
(6) adjust comb, wherein, at every root wire rope comb distance crown 80mm place, iron wire carries out colligation, can obtain product.
Preferably, described right angle comb-tooth-type grab bucket comb chassis is welded to form jointly by two block plates, and T-shaped structure, the angle between two block plates is 90 ± 2 °.
Preferably, in described step (1), the length of wire rope is 255-355mm.
Preferably, the distance in described step (5) between wire rope and the steel plate of upstream side is 0mm.
Preferably, the confinement nut in described step (5) is pairs of anti-loose nut nut.
Preferably, the U-shaped wire line shoe sub-surface in described step (1) is provided with galvanized anticorrosive layer.
Preferably, all solder joints and cut point brush bituminous epoxy paint after cutting in described step (4).
Adopt technical scheme of the present invention, the right angle comb-tooth-type grab bucket adopting this kind of process to produce to be removed contamination the particular problem occurred in process and the extraordinary sewage disposal apparatus researched and developed according to hydroelectric power plant, this kind of device clean-up capability is strong, operating efficiency is high, equipment cost is cheap, and production technology is simple, convenient operation, by carrying out colligation at every root wire rope comb distance crown 80mm place iron wire, improve the intensity of comb, the whole broken lot distortion of the wire rope when upper and lower combing trashrack grid face scum silica frost can be prevented, described comb chassis adopts T-type structure, make the easier for installation of comb, described confinement nut adopts pairs of anti-loose nut nut, wire rope is avoided to occur loosening, improve its fastness, the corrosion resistance that U-shaped wire line shoe sub-surface is provided with galvanized anticorrosive layer and after cutting, the technological measure such as all solder joints and cut point brush bituminous epoxy paint improves right angle comb-tooth-type grab bucket, long service life.
Detailed description of the invention
embodiment 1:
(1) prepare 45 steel plates of welding, size 4500mm × 150mm × 10mm mono-piece, 4500mm × 3000mm mono-piece, Φ 46 wire rope 30 be made up of the seizing wire of 6 Φ 19mm that welding rod 2kg, 300mm are long, 40mmU shaped steel wire rope clamp 60 overlaps; Wherein 30 groups, hole got through by the wide steel plate of 150mm, the specification often organizing through hole is 4 × Φ 26, between left and right apart from 60mm, fore-and-aft clearance 40mm, often organizes through-hole spacing 150mm;
(2) by two block plates along its length in 90 ° of welding, weld rear cooling naturally, can not lower the temperature with cold water, in case the reduction of steel plate toughness.Structure after welding is inverted T shape structure, and two limit sizes of T are respectively 300mm(stile) and 150mm(horizontal edge);
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth, wherein, grab bucket bucket tooth of removing contamination during welding, in full-gear, does not have the steel plate back side of punching to weld together with grab bucket bucket tooth, pad is followed successively by the bucket tooth being numbered 2,9,11,19,21,29 from left to right, can not side set;
(4) cut into three sections by being welded on the comb chassis fire weldering of removing contamination on the bucket tooth of grab bucket downstream, cut point is respectively grab bucket bucket tooth 10 ~ 11,20 ~ 21, solder joints all after cutting and cut point brush bituminous epoxy paint;
(5) 40mmU shaped steel wire rope clamp is inserted on the steel plate of perforating, totally two, front and back, totally 30 groups, then Φ 46 wire rope one of long 300mm is inserted U-shaped wire rope clip, with in the steel plate contact of upstream side, screw the fastening nut of U-shaped wire rope clip, want fastening Anti-loosen nut especially;
(6) comb is adjusted, wherein, at every root wire rope comb distance crown 80mm place, iron wire carries out colligation, prevent the whole broken lot distortion of the wire rope when upper and lower combing trashrack grid face scum silica frost, comb is caused not have intensity, and every root comb root must contact with root, guarantees that whole comb crown is on same straight line.
embodiment 2:
(1) prepare 45 steel plates of welding, size 4500mm × 150mm × 10mm mono-piece, 4500mm × 3000mm mono-piece, Φ 46 wire rope 30 be made up of the seizing wire of 6 Φ 19mm that welding rod 2kg, 310mm are long, 40mmU shaped steel wire rope clamp 60 overlaps; Wherein 30 groups, hole got through by the wide steel plate of 150mm, the specification often organizing through hole is 4 × Φ 26, between left and right apart from 60mm, fore-and-aft clearance 40mm, often organizes through-hole spacing 150mm;
(2) by two block plates along its length in 90 ° of welding, weld rear cooling naturally, can not lower the temperature with cold water, in case the reduction of steel plate toughness.Structure after welding is inverted T shape structure, and two limit sizes of T are respectively 300mm(stile) and 150mm(horizontal edge);
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth, wherein, grab bucket bucket tooth of removing contamination during welding, in full-gear, does not have the steel plate back side of punching to weld together with grab bucket bucket tooth, pad is followed successively by the bucket tooth being numbered 2,9,11,19,21,29 from left to right, can not side set;
(4) cut into three sections by being welded on the comb chassis fire weldering of removing contamination on the bucket tooth of grab bucket downstream, cut point is respectively grab bucket bucket tooth 10 ~ 11,20 ~ 21, solder joints all after cutting and cut point brush bituminous epoxy paint;
(5) 40mmU shaped steel wire rope clamp is inserted on the steel plate of perforating, totally two, front and back, totally 30 groups, then Φ 46 wire rope one of long 300mm is inserted U-shaped wire rope clip, with in the steel plate contact of upstream side, screw the fastening nut of U-shaped wire rope clip, want fastening Anti-loosen nut especially;
(6) comb is adjusted, wherein, at every root wire rope comb distance crown 80mm place, iron wire carries out colligation, prevent the whole broken lot distortion of the wire rope when upper and lower combing trashrack grid face scum silica frost, comb is caused not have intensity, and every root comb root must contact with root, guarantees that whole comb crown is on same straight line.
embodiment 3:
(1) prepare 45 steel plates of welding, size 4500mm × 150mm × 10mm mono-piece, 4500mm × 3000mm mono-piece, Φ 46 wire rope 30 be made up of the seizing wire of 6 Φ 19mm that welding rod 2kg, 305mm are long, 40mmU shaped steel wire rope clamp 60 overlaps; Wherein 30 groups, hole got through by the wide steel plate of 150mm, the specification often organizing through hole is 4 × Φ 26, between left and right apart from 60mm, fore-and-aft clearance 40mm, often organizes through-hole spacing 150mm;
(2) by two block plates along its length in 90 ° of welding, weld rear cooling naturally, can not lower the temperature with cold water, in case the reduction of steel plate toughness.Structure after welding is inverted T shape structure, and two limit sizes of T are respectively 300mm(stile) and 150mm(horizontal edge);
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth, wherein, grab bucket bucket tooth of removing contamination during welding, in full-gear, does not have the steel plate back side of punching to weld together with grab bucket bucket tooth, pad is followed successively by the bucket tooth being numbered 2,9,11,19,21,29 from left to right, can not side set;
(4) cut into three sections by being welded on the comb chassis fire weldering of removing contamination on the bucket tooth of grab bucket downstream, cut point is respectively grab bucket bucket tooth 10 ~ 11,20 ~ 21, solder joints all after cutting and cut point brush bituminous epoxy paint;
(5) 40mmU shaped steel wire rope clamp is inserted on the steel plate of perforating, totally two, front and back, totally 30 groups, then Φ 46 wire rope one of long 300mm is inserted U-shaped wire rope clip, with in the steel plate contact of upstream side, screw the fastening nut of U-shaped wire rope clip, want fastening Anti-loosen nut especially;
(6) comb is adjusted, wherein, at every root wire rope comb distance crown 80mm place, iron wire carries out colligation, prevent the whole broken lot distortion of the wire rope when upper and lower combing trashrack grid face scum silica frost, comb is caused not have intensity, and every root comb root must contact with root, guarantees that whole comb crown is on same straight line.
Based on above-mentioned, this kind of right angle comb-tooth-type is adopted to grab bucket the Shiquan power plant No. two trash rack for water inlet grid face cleaning works carried out, before implementing, before and after trashrack, pressure reduction is 2.2 meters, after implementing, pressure reduction is 0.6 meter, increase unit net water head 1.6 meters, increase every platform unit generation amount 1.2MW per hour, two unit increment life insurance 2.4 ten thousand KWh altogether, one day increment life insurance 2.4 ten thousand KWh × 24 hour=57.6 ten thousand KWh, amount to economic benefit 57.6 ten thousand KWh × 0.3 yuan/KWh=17.28 ten thousand yuan, a flood season calculates according to flood passage for 30 days, produce economic benefit and amount to 5,180,000 yuan, effect clearly.
Obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (7)
1. a production method for right angle comb-tooth-type grab bucket, is characterized in that, comprise following processing step:
(1) prepare 45 steel plates of welding, welding rod, wire rope and U-shaped wire rope clip, hole got through by steel plate;
(2) by two block plates along its length in 90 ° of welding, welded rear cooling naturally, the structure after welding is inverted T shape structure;
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth;
(4) three sections are cut into by being welded on the comb chassis fire weldering of removing contamination on the bucket tooth of grab bucket downstream;
(5) U-shaped wire rope clip is inserted on the steel plate of perforating, totally two, front and back, then insert U-shaped wire rope clip by wire rope one, and wire rope is with in the steel plate contact of upstream side, screw the fastening nut of U-shaped wire rope clip, want fastening Anti-loosen nut especially;
(6) adjust comb, wherein, at every root wire rope comb distance crown 80mm place, iron wire carries out colligation, can obtain product.
2. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, is characterized in that: described right angle comb-tooth-type grab bucket comb chassis is welded to form jointly by two block plates, and T-shaped structure, the angle between two block plates is 90 ± 2 °.
3. the production method of a kind of right angle according to claim 1 and 2 comb-tooth-type grab bucket, is characterized in that: in described step (1), the length of wire rope is 255-355mm.
4. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, is characterized in that: the distance in described step (5) between wire rope and the steel plate of upstream side is 0mm.
5. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, is characterized in that: the confinement nut in described step (5) is pairs of anti-loose nut nut.
6. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, is characterized in that: the U-shaped wire line shoe sub-surface in described step (1) is provided with galvanized anticorrosive layer.
7. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, is characterized in that: all solder joints and cut point brush bituminous epoxy paint after cutting in described step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606490.XA CN104372769B (en) | 2014-11-03 | 2014-11-03 | A kind of production method of right angle comb-tooth-type grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606490.XA CN104372769B (en) | 2014-11-03 | 2014-11-03 | A kind of production method of right angle comb-tooth-type grab bucket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104372769A true CN104372769A (en) | 2015-02-25 |
| CN104372769B CN104372769B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410606490.XA Active CN104372769B (en) | 2014-11-03 | 2014-11-03 | A kind of production method of right angle comb-tooth-type grab bucket |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05331821A (en) * | 1992-06-02 | 1993-12-14 | Akio Iida | Derricking screen type dirt removing device |
| CN201074338Y (en) * | 2007-08-13 | 2008-06-18 | 山东水总机械工程有限公司 | Reciprocating bucket grab raking equipment |
| CN201605615U (en) * | 2009-12-31 | 2010-10-13 | 安徽省六安恒源机械有限公司 | Hydraulic grab type trash-cleaning machine |
| CN102677634A (en) * | 2011-03-17 | 2012-09-19 | 哈尔滨盛迪电力设备有限公司 | Cleaning device for trash rack at water intake in hydropower station reservoir zone |
-
2014
- 2014-11-03 CN CN201410606490.XA patent/CN104372769B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05331821A (en) * | 1992-06-02 | 1993-12-14 | Akio Iida | Derricking screen type dirt removing device |
| CN201074338Y (en) * | 2007-08-13 | 2008-06-18 | 山东水总机械工程有限公司 | Reciprocating bucket grab raking equipment |
| CN201605615U (en) * | 2009-12-31 | 2010-10-13 | 安徽省六安恒源机械有限公司 | Hydraulic grab type trash-cleaning machine |
| CN102677634A (en) * | 2011-03-17 | 2012-09-19 | 哈尔滨盛迪电力设备有限公司 | Cleaning device for trash rack at water intake in hydropower station reservoir zone |
Non-Patent Citations (1)
| Title |
|---|
| 卿慧等: ""液压清污抓斗在水电站垂直式拦污栅清污中的应用"", 《水利电力机械》, no. 6, 31 December 2000 (2000-12-31), pages 53 - 55 * |
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| CN104372769B (en) | 2016-06-08 |
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