CN103785930B - The Light deformation assembling and welding process of the middle pan of scraper conveyor - Google Patents
The Light deformation assembling and welding process of the middle pan of scraper conveyor Download PDFInfo
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- CN103785930B CN103785930B CN201410019819.2A CN201410019819A CN103785930B CN 103785930 B CN103785930 B CN 103785930B CN 201410019819 A CN201410019819 A CN 201410019819A CN 103785930 B CN103785930 B CN 103785930B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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Abstract
The present invention relates to a kind of Light deformation assembling and welding process of the middle pan of scraper conveyor, be applicable to the production of the middle pan of scraper conveyor of underground coal mine exploitation working face.Be characterized in, comprise the steps: first shovel board ledge (3) and baffle (1) to be oppositely inverted, first plate (2) in shovel board ledge (3) and the upper assembling of baffle (1), be soldered into the welding of middle plate (2) sealing run with narrow gap MAG simultaneously, and then assemble back cover plate (4) thus become box-structure, finally make shovel board ledge (3) and baffle (1) recover forward whole box-structure upset to place, then carry out welding with narrow gap MAG weldering centering plate (2) fillet in normal shear and back cover plate (4) weld seam.The invention provides a kind of assembling and welding process of efficient Light deformation, may be used for the manufacture of underground coal mine scraper conveyor intermediate channel, effectively change traditional intermediate channel assembly welding technique flow process when welding, and effectively control welding deformation.
Description
Technical field
The present invention relates to a kind of Light deformation assembling and welding process of the middle pan of scraper conveyor, be applicable to the production of the middle pan of scraper conveyor of underground coal mine exploitation working face.
Background technology
The middle pan of scraper conveyor is welded by baffle, shovel board ledge, middle plate, back cover base plate, for transporting coal and material, coal and the dilatory unloading end that slides into of material is unloaded by scraper chain.Generally adopt traditional assembly welding method at present, after namely first baffle, shovel board ledge, middle plate point welding being completed, then assemble back cover plate, because middle plate and base plate size are large during actual welding, structural rigidity is large, and cooling velocity is fast, welding constraint stress is large, and cold cracking sensitivity is higher.Simultaneously at the bottom of loaded down with trivial details, the efficiency of operation.
The middle pan of scraper conveyor of such as certain model is made up of baffle, shovel board ledge, middle plate, back cover plate, and its assembling and welding process is: shovel board ledge, baffle, middle plate are first fitted together, then use CO
2gas shield welding method positive and negative replaces welding and completes the two-sided V weld seam of middle plate; finally assemble back cover plate; complete back cover plate welding; find through Long-Time Service, adopt in this way, for ensureing the intensity of intermediate channel; not only middle plate grooves of welding joints is large; and be difficult in welding process control welding deformation, technological process is loaded down with trivial details, and efficiency is low.
For above technology contents, the domestic document delivered mainly comprises " control of intermediate channel welding deformation " (107-109 page) of " coal mine machinery " the 33rd volume the 12nd phase yellow east wind etc., and issuing date is 20121231; " packaging technology that welding middle slot of scraper conveyor is out of shape is inquired into " (216-217 page) of " scientific and technological information exploitation is with economic " the 20th refined outstanding person of volume the 21st phase Xue, issuing date is 20101231.
Summary of the invention
The object of this invention is to provide a kind of Light deformation assembling and welding process of the middle pan of scraper conveyor, welding cost can be reduced on the basis ensureing intermediate channel structural strength and improve welding efficiency simultaneously.
A kind of Light deformation assembling and welding process of the middle pan of scraper conveyor, its special feature is, comprise the steps: first shovel board ledge and baffle to be oppositely inverted, plate in first assembling on shovel board ledge and baffle, be soldered into the welding of middle back weld seam with narrow gap MAG simultaneously, and then assemble back cover plate thus become box-structure, finally make shovel board ledge and baffle recover forward whole box-structure upset to place, then carry out welding with narrow gap MAG weldering centering plate fillet in normal shear and back cover plate weld seam.
Wherein the cross section of middle back weld seam is isosceles right triangle, and the cross section of middle plate fillet in normal shear is right-angled trapezium.
Be wherein that 50mm calculates according to the thickness of middle plate, in the cross section of middle plate fillet in normal shear, upper bottom side length is 2-3mm, and the length of side of going to the bottom is 7-10mm, and the right angle length of side is 40-46mm, and in the cross section of middle back weld seam, the right angle length of side is 4-10mm.
Wherein shovel board ledge and baffle are oppositely inverted refer to by forward place shovel board ledge and baffle revolve turnback after place.
Wherein in assembling, after plate, first just shovel board ledge, baffle and middle plate point are fitted together.
Wherein decorate and refer to that the method by dimensional requirement welding is fixed together.
The invention provides a kind of assembling and welding process of efficient Light deformation, may be used for the manufacture of underground coal mine scraper conveyor intermediate channel, effectively change traditional intermediate channel assembly welding technique flow process when welding, and effectively control welding deformation.Prove through overtesting, can reduce welding material expenditure more than 40%, compared with conventional method, welding quality stable, can increase work efficiency more than 150%.
Accompanying drawing explanation
The intermediate channel structural representation that accompanying drawing 1 obtains for the inventive method;
Accompanying drawing 2 is the middle plate welding schematic diagram that the assembly welding method in background technology of the present invention obtains, wherein the thickness of plate in h representative;
The middle plate welding schematic diagram that accompanying drawing 3 obtains for assembling and welding process of the present invention, the wherein thickness of plate in H representative.
Detailed description of the invention
As shown in Figure 1,3, the present invention is a kind of process for a base plate welding equipment in underground coal mine scraper conveyor intermediate channel, by plate 2 in traditional first assembling, after middle plate 2 assembly welding completes, the process of assembling back cover plate 4 again changes the process of middle plate 2, the disposable assembling of back cover plate 4 into, to reach the effect effectively controlling welding deformation when welding, on the basis ensureing structural strength, reduce welding cost, improve welding efficiency simultaneously.Because the slope type of middle plate 2 front, sealing run changes to some extent, loading is reduced.Because welding method changes to some extent, cause welding process heat input little, welding deformation amount is reduced, optimizes technological process simultaneously.
Embodiment 1:
First be oppositely inverted after shovel board ledge 3 and baffle 1 being revolved turnback, plate 2 in first assembling on shovel board ledge 3 and baffle 1, (can first decorate after plate 2 in dress, drawing dimensional requirement is pressed by plate 2 in shovel board ledge 3 and baffle 1, be fixed together by the method for welding, certainly this is decorated step and also can omit) welding of middle plate 2 sealing run is soldered into narrow gap MAG, and then assemble back cover plate 4 thus become box-structure, then whole box-structure being turned over turnback makes shovel board ledge 3 and baffle 1 recover forward placement (i.e. the position of intermediate channel shown in Fig. 1), carry out welding with narrow gap MAG weldering centering plate 2 fillet in normal shear and back cover plate 4 weld seam again.
As shown in Figure 2, as shown in Figure 3, the loading of weld shape wlding traditional is as seen more than 2 times of weld seam wlding loading of the present invention for middle back of the present invention, fillet in normal shear shape for the middle back of background technology, fillet in normal shear shape.
Wherein the cross section of middle plate 2 sealing run is isosceles right triangle, and the cross section of middle plate 2 fillet in normal shear is right-angled trapezium.The thickness H of middle plate 2 is 50mm, and in the cross section of middle plate 2 fillet in normal shear, upper bottom side length is 2mm, and the length of side of going to the bottom is 9mm, and the right angle length of side is 42mm, and the cross section right angle length of side of middle plate 2 sealing run is 6mm.
The inventive method and conventional method are compared as follows table:
After central plate 2 front, sealing run form have been welded, for flute length 1750mm, groove width 1000mm intermediate channel, by welding method traditional in background technology, welding deformation amount is 10mm ~ 15mm, and by groove type of the present invention and after adopting narrow gap MAG to weld, deflection is 2mm ~ 3mm, and welding deformation amount obviously reduces.
Claims (6)
1. the Light deformation assembling and welding process of a middle pan of scraper conveyor, it is characterized in that, comprise the steps: first shovel board ledge (3) and baffle (1) to be oppositely inverted, first plate (2) in shovel board ledge (3) and the upper assembling of baffle (1), be soldered into the welding of middle plate (2) sealing run with narrow gap MAG simultaneously, and then assemble back cover plate (4) thus become box-structure, finally make shovel board ledge (3) and baffle (1) recover forward whole box-structure upset to place, carry out welding with narrow gap MAG weldering centering plate (2) fillet in normal shear and back cover plate (4) weld seam again.
2. the Light deformation assembling and welding process of the middle pan of scraper conveyor as claimed in claim 1, is characterized in that: wherein, the cross section of plate (2) sealing run is isosceles right triangle, and the cross section of middle plate (2) fillet in normal shear is right-angled trapezium.
3. the Light deformation assembling and welding process of the middle pan of scraper conveyor as claimed in claim 2, it is characterized in that: wherein according to the thickness of middle plate (2) be 50mm calculate, in the cross section of middle plate (2) fillet in normal shear, upper bottom side length is 2-3mm, the length of side of going to the bottom is 7-10mm, the right angle length of side is 40-46mm, and in the cross section of middle plate (2) sealing run, the right angle length of side is 4-10mm.
4. the Light deformation assembling and welding process of the middle pan of scraper conveyor as claimed in claim 1, is characterized in that: wherein shovel board ledge (3) and the reverse inversion of baffle (1) are referred to that the shovel board ledge (3) placed by forward and baffle (1) are placed after revolving turnback.
5. as the Light deformation assembling and welding process of the middle pan of scraper conveyor in Claims 1-4 as described in any one, it is characterized in that: in wherein assembling, first just shovel board ledge (3), baffle (1) and middle plate (2) point are fitted together plate (2) afterwards.
6. the Light deformation assembling and welding process of the middle pan of scraper conveyor as claimed in claim 1, is characterized in that: wherein decorate and refer to that the method by dimensional requirement welding is fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410019819.2A CN103785930B (en) | 2014-01-17 | 2014-01-17 | The Light deformation assembling and welding process of the middle pan of scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410019819.2A CN103785930B (en) | 2014-01-17 | 2014-01-17 | The Light deformation assembling and welding process of the middle pan of scraper conveyor |
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| Publication Number | Publication Date |
|---|---|
| CN103785930A CN103785930A (en) | 2014-05-14 |
| CN103785930B true CN103785930B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410019819.2A Active CN103785930B (en) | 2014-01-17 | 2014-01-17 | The Light deformation assembling and welding process of the middle pan of scraper conveyor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156258A (en) * | 1990-11-27 | 1992-10-20 | Westfalia Becorit Industrietechnik Gmbh | Scraper-chain conveyors for use in mineral mining |
| US6401912B1 (en) * | 1999-10-26 | 2002-06-11 | Clarence L. Bandy, Jr. | Conveyor pan assembly with replaceable deck |
| CN1458049A (en) * | 2002-05-17 | 2003-11-26 | Dbt有限公司 | Chute section |
| CN1458048A (en) * | 2002-05-17 | 2003-11-26 | Dbt有限公司 | Chute section |
| CN102513660A (en) * | 2011-12-16 | 2012-06-27 | 连云港天明装备有限公司 | Large middle trough welding method |
| CN103387113A (en) * | 2013-07-02 | 2013-11-13 | 云南农垦科赛特机械制造有限公司 | Production process of middle trough of scraper conveyor |
| CN103466313A (en) * | 2013-09-17 | 2013-12-25 | 肖宁 | Feeding machine for medium plate and steel channel |
-
2014
- 2014-01-17 CN CN201410019819.2A patent/CN103785930B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156258A (en) * | 1990-11-27 | 1992-10-20 | Westfalia Becorit Industrietechnik Gmbh | Scraper-chain conveyors for use in mineral mining |
| US6401912B1 (en) * | 1999-10-26 | 2002-06-11 | Clarence L. Bandy, Jr. | Conveyor pan assembly with replaceable deck |
| CN1458049A (en) * | 2002-05-17 | 2003-11-26 | Dbt有限公司 | Chute section |
| CN1458048A (en) * | 2002-05-17 | 2003-11-26 | Dbt有限公司 | Chute section |
| CN102513660A (en) * | 2011-12-16 | 2012-06-27 | 连云港天明装备有限公司 | Large middle trough welding method |
| CN103387113A (en) * | 2013-07-02 | 2013-11-13 | 云南农垦科赛特机械制造有限公司 | Production process of middle trough of scraper conveyor |
| CN103466313A (en) * | 2013-09-17 | 2013-12-25 | 肖宁 | Feeding machine for medium plate and steel channel |
Non-Patent Citations (7)
| Title |
|---|
| 中部槽焊接变形的控制;黄东风等;《煤矿机械》;20121231;第33卷(第12期);107-109 * |
| 中部槽焊接过程中的热变形机理分析;宋永刚等;《煤矿机械》;20111231;第32卷(第12期);126-128 * |
| 中部槽端头的热处理及焊接工艺改进;李晋霞;《能源技术与管理》;20041230(第06期);65-66 * |
| 中部槽设计和焊接工艺的改进;罗春信;《煤矿机械》;19900628(第03期);9-10 * |
| 刮板输送机中部槽焊接变形的组装工艺探讨;薛淑杰;《科技情报开发与经济》;20101231;第20卷(第21期);216-217 * |
| 刮板输送机中部槽组对工装的设计和使用;王勇等;《矿山机械》;20101231(第03期);16-18 * |
| 机器人双丝焊在中部槽焊接上的应用;颜进等;《电焊机》;20091020(第10期);81-83 * |
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| CN103785930A (en) | 2014-05-14 |
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