CN104372769B - A kind of production method of right angle comb-tooth-type grab bucket - Google Patents
A kind of production method of right angle comb-tooth-type grab bucket Download PDFInfo
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- CN104372769B CN104372769B CN201410606490.XA CN201410606490A CN104372769B CN 104372769 B CN104372769 B CN 104372769B CN 201410606490 A CN201410606490 A CN 201410606490A CN 104372769 B CN104372769 B CN 104372769B
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- comb
- wire rope
- tooth
- grab bucket
- right angle
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses the production method of a kind of right angle comb-tooth-type grab bucket, relate to intake of hydropower station trash rack maintenance field, the right angle comb-tooth-type grab bucket that this kind of method is produced is to remove 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, work efficiency is high, equipment cost is cheap, and production technology is simple, it is easy to operation, by carrying out colligation at every steel wire rope comb distance crown 80mm place iron wire, improve the intensity of comb, the whole broken lot deformation of the steel wire rope when upper and lower combing trash rack grid edema over the face slag 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, steel wire rope is avoided to occur loosening, improve its fastness, after U-shaped wire line shoe sub-surface is provided with galvanized anticorrosive layer and cutting, the technological measure such as all of solder joint and cut point brush bituminous epoxy paint improves the corrosion resistance that right angle comb-tooth-type is grabbed bucket, long service life.
Description
Technical field
The present invention relates to intake of hydropower station trash rack 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 trash rack is the common schema of hydroelectric station design both at home and abroad at present, operation along with unit, the bits carried in current will be attached to trash rack grid face, affect passing through of current, ultimately cause formation pressure reduction before and after trash rack, unit net water head reduces, and ultimately results in unit output and declines; During start, under the suction under current direction, the grab bucket of removing contamination of trash rack 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 trash rack 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 removing contamination effective.
To achieve these goals, the technical scheme that the present invention takes is: the production method of a kind of right angle comb-tooth-type grab bucket provided, including following processing step:
(1) prepare 45 steel plates of welding, welding rod, steel wire rope and U-shaped wire rope clip, steel plate is got through hole;
(2) by two block plates along its length in 90 �� of welding, having welded rear natural cooling, the structure after welding is inverted T shape structure, forms comb chassis;
(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 removed 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 one, steel wire rope is inserted U-shaped wire rope clip, steel wire rope contacts with the steel plate of upstream side, screw the fastening nut of U-shaped wire rope clip, described fastening nut is pairs of anti-loose nut nut, is important to fastening Anti-loosen nut;
(6) adjust comb, wherein, carry out colligation at every steel wire rope comb distance crown 80mm place iron wire, can be prepared by 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 steel wire rope is 255-355mm.
Preferably, the U-shaped wire line shoe sub-surface in described step (1) is provided with galvanized anticorrosive layer.
Preferably, all of solder joint and cut point brush bituminous epoxy paint after cutting in described step (4).
Adopt technical scheme, adopting the right angle comb-tooth-type grab bucket that this kind of process produce is remove 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, work efficiency is high, equipment cost is cheap, and production technology is simple, it is easy to operation, by carrying out colligation at every steel wire rope comb distance crown 80mm place iron wire, improve the intensity of comb, the whole broken lot deformation of the steel wire rope when upper and lower combing trash rack grid edema over the face slag can be prevented, described comb chassis adopts T-type structure, make the easier for installation of comb, described fastening nut adopts pairs of anti-loose nut nut, steel wire rope is avoided to occur loosening, improve its fastness, after U-shaped wire line shoe sub-surface is provided with galvanized anticorrosive layer and cutting, the technological measure such as all of solder joint and cut point brush bituminous epoxy paint improves the corrosion resistance that right angle comb-tooth-type is grabbed bucket, long service life.
Detailed description of the invention
Embodiment 1:
(1) preparing 45 steel plates of welding, size 4500mm �� 150mm �� 10mm mono-piece, 4500mm �� 3000mm mono-piece, 30, �� 46 steel wire rope that the seizing wire by 6 �� 19mm of welding rod 2kg, 300mm length forms, 40mmU shaped steel wire rope clamp 60 overlaps; Wherein getting through 30 groups of hole on the wide steel plate of 150mm, the specification often organizing through hole is 4 �� �� 26, between left and right from 60mm, and fore-and-aft clearance 40mm, often group through-hole spacing 150mm;
(2) by two block plates along its length in 90 �� of welding, rear natural cooling has been welded, it is impossible to lower the temperature with cold water, in case steel plate toughness reduces. Structure after welding is inverted T shape structure, forms comb chassis, two limit sizes respectively 300mm (stile) of T and 150mm (horizontal edge);
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth, wherein, grab bucket bucket tooth is removed contamination during welding in full-gear, it does not have the steel plate back side of punching welds 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) welding cut into three sections by being welded on the comb chassis fire removed contamination on grab bucket downstream bucket tooth, cut point is respectively grabbed bucket bucket tooth 10��11, and 20��21, all of solder joint and cut point brush bituminous epoxy paint after cutting;
(5) 40mmU shaped steel wire rope clamp is inserted on the steel plate of perforating, totally two, front and back, totally 30 groups, then one, �� 46 steel wire rope of long 300mm is inserted U-shaped wire rope clip, contact with the steel plate of upstream side, screw the fastening nut of U-shaped wire rope clip, be important to fastening Anti-loosen nut;
(6) comb is adjusted, wherein, colligation is carried out at every steel wire rope comb distance crown 80mm place iron wire, prevent the whole broken lot deformation of the steel wire rope when upper and lower combing trash rack grid edema over the face slag, comb is caused not have intensity, and every comb root must contact with root, it is ensured that whole comb crown is on same straight line.
Embodiment 2:
(1) preparing 45 steel plates of welding, size 4500mm �� 150mm �� 10mm mono-piece, 4500mm �� 3000mm mono-piece, 30, �� 46 steel wire rope that the seizing wire by 6 �� 19mm of welding rod 2kg, 310mm length forms, 40mmU shaped steel wire rope clamp 60 overlaps; Wherein getting through 30 groups of hole on the wide steel plate of 150mm, the specification often organizing through hole is 4 �� �� 26, between left and right from 60mm, and fore-and-aft clearance 40mm, often group through-hole spacing 150mm;
(2) by two block plates along its length in 90 �� of welding, rear natural cooling has been welded, it is impossible to lower the temperature with cold water, in case steel plate toughness reduces. Structure after welding is inverted T shape structure, forms comb chassis, two limit sizes respectively 300mm (stile) of T and 150mm (horizontal edge);
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth, wherein, grab bucket bucket tooth is removed contamination during welding in full-gear, it does not have the steel plate back side of punching welds 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) welding cut into three sections by being welded on the comb chassis fire removed contamination on grab bucket downstream bucket tooth, cut point is respectively grabbed bucket bucket tooth 10��11, and 20��21, all of solder joint and cut point brush bituminous epoxy paint after cutting;
(5) 40mmU shaped steel wire rope clamp is inserted on the steel plate of perforating, totally two, front and back, totally 30 groups, then one, �� 46 steel wire rope of long 300mm is inserted U-shaped wire rope clip, contact with the steel plate of upstream side, screw the fastening nut of U-shaped wire rope clip, be important to fastening Anti-loosen nut;
(6) comb is adjusted, wherein, colligation is carried out at every steel wire rope comb distance crown 80mm place iron wire, prevent the whole broken lot deformation of the steel wire rope when upper and lower combing trash rack grid edema over the face slag, comb is caused not have intensity, and every comb root must contact with root, it is ensured that whole comb crown is on same straight line.
Embodiment 3:
(1) preparing 45 steel plates of welding, size 4500mm �� 150mm �� 10mm mono-piece, 4500mm �� 3000mm mono-piece, 30, �� 46 steel wire rope that the seizing wire by 6 �� 19mm of welding rod 2kg, 305mm length forms, 40mmU shaped steel wire rope clamp 60 overlaps; Wherein getting through 30 groups of hole on the wide steel plate of 150mm, the specification often organizing through hole is 4 �� �� 26, between left and right from 60mm, and fore-and-aft clearance 40mm, often group through-hole spacing 150mm;
(2) by two block plates along its length in 90 �� of welding, rear natural cooling has been welded, it is impossible to lower the temperature with cold water, in case steel plate toughness reduces. Structure after welding is inverted T shape structure, forms comb chassis, two limit sizes respectively 300mm (stile) of T and 150mm (horizontal edge);
(3) comb chassis is welded on removes contamination on grab bucket downstream bucket tooth, wherein, grab bucket bucket tooth is removed contamination during welding in full-gear, it does not have the steel plate back side of punching welds 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) welding cut into three sections by being welded on the comb chassis fire removed contamination on grab bucket downstream bucket tooth, cut point is respectively grabbed bucket bucket tooth 10��11, and 20��21, all of solder joint and cut point brush bituminous epoxy paint after cutting;
(5) 40mmU shaped steel wire rope clamp is inserted on the steel plate of perforating, totally two, front and back, totally 30 groups, then one, �� 46 steel wire rope of long 300mm is inserted U-shaped wire rope clip, contact with the steel plate of upstream side, screw the fastening nut of U-shaped wire rope clip, be important to fastening Anti-loosen nut;
(6) comb is adjusted, wherein, colligation is carried out at every steel wire rope comb distance crown 80mm place iron wire, prevent the whole broken lot deformation of the steel wire rope when upper and lower combing trash rack grid edema over the face slag, comb is caused not have intensity, and every comb root must contact with root, it is ensured that whole comb crown is on same straight line.
Based on above-mentioned, adopt No. two trash rack for water inlet grid face cleaning works of Shiquan power plant that this kind of right angle comb-tooth-type grab bucket carries out, before implementing, before and after trash rack, pressure reduction is 2.2 meters, after enforcement, pressure reduction is 0.6 meter, increase unit net water head 1.6 meters, increase every 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, one flood season calculates according to flood passage for 30 days, produce economic benefit and amount to 5,180,000 yuan, effect is clearly.
The obvious present invention implements and is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that the design of the method for the present invention carries out with technical scheme; or the not improved design by the present invention and technical scheme directly apply to other occasion, all within protection scope of the present invention.
Claims (5)
1. the production method of a right angle comb-tooth-type grab bucket, it is characterised in that include following processing step:
(1) prepare 45 steel plates of welding, welding rod, steel wire rope and U-shaped wire rope clip, steel plate is got through hole;
(2) by two block plates along its length in 90 �� of welding, having welded rear natural cooling, the structure after welding is inverted T shape structure, forms comb chassis;
(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 removed 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 one, steel wire rope is inserted U-shaped wire rope clip, steel wire rope contacts with the steel plate of upstream side, screw the fastening nut of U-shaped wire rope clip, described fastening nut is pairs of anti-loose nut nut, is important to fastening Anti-loosen nut;
(6) adjust comb, wherein, carry out colligation at every steel wire rope comb distance crown 80mm place iron wire, can be prepared by product.
2. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, it is characterised 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, it is characterised in that: in described step (1), the length of steel wire rope is 255-355mm.
4. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, it is characterised in that: the U-shaped wire line shoe sub-surface in described step (1) is provided with galvanized anticorrosive layer.
5. the production method of a kind of right angle according to claim 1 comb-tooth-type grab bucket, it is characterised in that: all of solder joint 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 CN104372769A (en) | 2015-02-25 |
| CN104372769B true CN104372769B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
|---|
| "液压清污抓斗在水电站垂直式拦污栅清污中的应用";卿慧等;《水利电力机械》;20001231(第6期);第53页第1行至55页右栏第10行 * |
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| CN104372769A (en) | 2015-02-25 |
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