CN102632329B - A kind of welding method of double-rope groove pulley and welding equipment - Google Patents
A kind of welding method of double-rope groove pulley and welding equipment Download PDFInfo
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- CN102632329B CN102632329B CN201210126038.4A CN201210126038A CN102632329B CN 102632329 B CN102632329 B CN 102632329B CN 201210126038 A CN201210126038 A CN 201210126038A CN 102632329 B CN102632329 B CN 102632329B
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Abstract
The embodiment of the invention discloses a kind of welding method and welding equipment of double-rope groove pulley, belong to machinery manufacturing technology field.The method comprises: at least one double-rope groove pulley to be welded to be placed on roller moulding bed and to keep the axis of described double-rope groove pulley to be level; The position to be welded of described double-rope groove pulley is preheated to 100 DEG C-150 DEG C; Submerged arc welding is carried out to the position after described double-rope groove pulley preheating.Described equipment comprises: roller moulding bed, side guide wheel and welding equipment.The embodiment of the present invention adopts pulley moulding bed double-rope groove pulley to be welded vertically to be placed, and rotate double-rope groove pulley to be welded by pulley moulding bed, keep position while welding constant, adopt the welding of submerged arc welding level simultaneously, depth of penetration is large, welding quality is good and stablize, and first-time qualification rate is high, greatly shortens the manufacture cycle and has saved manufacture cost.
Description
Technical field
The present invention relates to machinery manufacturing technology field, particularly a kind of welding method of double-rope groove pulley and welding equipment.
Background technique
In ship lift, usually can use the double-rope groove pulley of major diameter (such as diameter is 3.5m-5.5m).This large diameter double-rope groove pulley is formed by some weld parts usually, and these parts generally include large steel loop, little steel loop, disc, wheel hub, gusset and wheel rim.Large steel loop two ends are respectively welded with a wheel rim, and little steel loop is welded between wheel rim and wheel hub by disc.Wherein, the thickness of large steel loop is generally 35mm-45mm, and the fusion length between itself and wheel rim is 10m-20m, and need deposited metal 200kg-400kg, deposition amount is large.
Adopt existing welding method weld large steel loop and wheel rim time, normally large steel loop and wheel rim horizontal, welding position is horizontal position welding, and workman can only carry out manual welding.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Due to when welding large steel loop and wheel rim, welding position is horizontal position welding, and deposited metal amount is large, so easily produce incomplete fusion and lack of penetration, weldquality is not easy to be guaranteed, and in subsequent manufacturing processes, needs to increase a large amount of Weld Seam Repairation time, the manufacturing cycle of double-rope groove pulley not only can be caused long, but also the large and manufacture cost increase of welding deformation can be caused.
Summary of the invention
In order to solve in prior art when welding large steel loop and the wheel rim of double-rope groove pulley, the problem that weldquality can not be guaranteed, embodiments provides a kind of welding method and welding equipment of double-rope groove pulley.Described technological scheme is as follows:
On the one hand, embodiments provide a kind of welding method of double-rope groove pulley, described method comprises.
At least one double-rope groove pulley to be welded is placed on roller moulding bed;
The position to be welded of described double-rope groove pulley is preheated to 100 DEG C-150 DEG C;
Submerged arc welding is carried out to the position after described double-rope groove pulley preheating;
When at least one double-rope groove pulley to be welded being placed on roller moulding bed, keep the axis of described double-rope groove pulley to be level, the both sides of roller moulding bed arrange side guide wheel, and described side guide wheel is arranged near the end face of described double-rope groove pulley.
Preferably, described at least one double-rope groove pulley to be welded is vertically placed on roller moulding bed before, described method also comprises:
At least two described double-rope groove pulley are passed through locking device axial restraint together.
Preferably, described locking device comprises cylinder, cover plate and bolt, the endoporus of the external diameter of described cylinder and the wheel hub of described double-rope groove pulley matches, one end of described cylinder is provided with outward flange, be bolted to the other end of described cylinder described in described cover plate passes through, described at least two double-rope groove pulley are fixed between described outward flange and described cover plate.
Particularly, described position to be welded comprises current contact to be welded and described soldering point both sides 70mm-90mm.
Particularly, described submerged arc welding adopts automatic welding carriage to carry out.
Particularly, the welding wire that described submerged arc welding adopts is H10Mn2, solder flux is HJ350, welding current is 700A-750A, weldingvoltage is 36V-38V, welding speed is 38cm/min-45cm/min.
On the other hand, embodiments provide a kind of welding equipment of double-rope groove pulley, described equipment comprises: for placing and rotating the pulley moulding bed of double-rope groove pulley to be welded, the side guide wheel being arranged on described pulley moulding bed both sides and welding equipment, described side guide wheel is arranged near the end face of described double-rope groove pulley.
Preferably, described equipment also comprises for by least two described double-rope groove pulley axial restraints locking device together.
Preferably, described locking device comprises cylinder, cover plate and bolt, the endoporus of the external diameter of described cylinder and the wheel hub of described double-rope groove pulley matches, one end of described cylinder is provided with outward flange, be bolted to the other end of described cylinder described in described cover plate passes through, described at least two double-rope groove pulley are fixed between described outward flange and described cover plate.
Preferably, described welding equipment is automatic welding carriage.
The beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is: adopt pulley moulding bed double-rope groove pulley to be welded vertically to be placed, and rotate double-rope groove pulley to be welded by pulley moulding bed, keep position while welding constant, in this case, adopt the welding of submerged arc welding level, depth of penetration is large, and welding quality is good and stablize, first-time qualification rate is high, greatly shortens the manufacture cycle and has saved manufacture cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 a is the cross-sectional view of double-rope groove pulley;
Fig. 1 b is the enlarged diagram at the I position of double-rope groove pulley in Fig. 1 a;
Fig. 2 is the flow chart of the welding method of a kind of double-rope groove pulley provided in the embodiment of the present invention 1;
Fig. 3 is structure and the using state schematic diagram of the welding equipment of a kind of double-rope groove pulley provided in the embodiment of the present invention 2;
Fig. 4 is the structural representation of the locking device provided in the embodiment of the present invention 2.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
For convenience of description, the structure of large diameter double-rope groove pulley is simply introduced below in conjunction with Fig. 1 a-1b.As shown in Fig. 1 a-1b, double-rope groove pulley generally includes large steel loop 1, little steel loop 2, disc 3, wheel hub 4, gusset 5, wheel rim 6.Wherein the weld seam of large steel loop and wheel rim adopts one side 45 ° of grooves, requires single face welding and double face shaping, and weld seam is stressed large and weldquality requires high.Large steel loop 1 two ends are respectively welded with a wheel rim 6, and little steel loop 2 is welded between wheel rim 6 and wheel hub 4 by disc 3.Wherein, the thickness of large steel loop 1 is generally 35mm-45mm, and the fusion length between itself and wheel rim 6 is 10m-20m, needs deposited metal 200kg-400kg.
Embodiment 1
As shown in Figure 2, embodiments provide a kind of welding method of double-rope groove pulley, the method comprises:
Step 201: at least one double-rope groove pulley to be welded to be placed on roller moulding bed and to keep the axis of double-rope groove pulley to be level.
Particularly, can by arranging side guide wheel in the both sides of roller moulding bed, when double-rope groove pulley is placed on after on roller moulding bed, this side guide wheel is near the end face of double-rope groove pulley, preferably contact with double-rope groove pulley but do not hinder its circular-rotation, toppling over to prevent double-rope groove pulley.
Preferably, before this step 201, the method also comprises: by least two double-rope groove pulley axial restraints together.Like this, can once place multiple double-rope groove pulley, save the operating time.
Particularly, in the present embodiment, can by locking device by least two double-rope groove pulley axial restraints together.This locking device can comprise cylinder, cover plate and bolt, the endoporus of the external diameter of cylinder and the wheel hub of double-rope groove pulley matches, one end of cylinder is provided with outward flange, and cover plate is bolted on the other end of cylinder, and at least two double-rope groove pulley are fixed between outward flange and cover plate.The locking device of the present embodiment is convenient to assembly and disassembly, can increase work efficiency further.This locking device can also be steel plate.
Step 202: the position to be welded of double-rope groove pulley is preheated to 100 DEG C-150 DEG C.
Particularly, flame gun can be adopted to carry out preheating, limit heating edge rotates double-rope groove pulley, to guarantee that preheating is even.
Further, position to be welded comprises weld seam and weld seam both sides 70mm-90mm.
Step 203: submerged arc welding is carried out to the position after double-rope groove pulley preheating.
Preferably, automatic welding carriage is adopted to carry out submerged arc welding.Adopt automatic welding equipment can ensure that welding quality is good and stablize, raising welding speed, greatly shortens the manufacture cycle, and reduces labor strength.Alternatively, cross manipulator can also be adopted to weld.
Further, the welding wire that submerged arc welding adopts is H10Mn2, solder flux is HJ350, welding current is 700A-750A, weldingvoltage is 36V-38V, welding speed is 38cm/min-45cm/min.This welding wire cost is low, can save manufacture cost further.
The embodiment of the present invention adopts pulley moulding bed double-rope groove pulley to be welded vertically to be placed, and rotate double-rope groove pulley to be welded by pulley moulding bed, keep position while welding constant, in this case, adopt the welding of submerged arc welding level, depth of penetration is large, and welding quality is good and stablize, first-time qualification rate is high, greatly shortens the manufacture cycle and has saved manufacture cost.
Embodiment 2
Embodiments provide a kind of welding equipment of double-rope groove pulley, be applicable to realize the welding method described in embodiment 1.As shown in Figure 3, this welding equipment comprises: for placing and rotating the pulley moulding bed 8 of double-rope groove pulley to be welded, the side guide wheel 9 being arranged on pulley moulding bed 8 both sides and welding equipment 10, side guide wheel 9 is arranged near the end face of double-rope groove pulley 12.
Preferably, this welding equipment also comprises for by least two double-rope groove pulley axial restraints locking device 7 together.Be 4 double-rope groove pulley in the present embodiment.
In the present embodiment, as shown in Figure 4, this locking device 7 comprises cylinder 71, cover plate 72 and bolt 73, the endoporus of the external diameter of cylinder 71 and the wheel hub of double-rope groove pulley 12 matches, one end of cylinder 71 is provided with outward flange 74, cover plate 72 is fixed on the other end of cylinder 71 by bolt 73, and at least two double-rope groove pulley 12 are fixed between outward flange 74 and 72 cover plate.This locking device structure is simple, is convenient to assembling, dismounting and location.In other embodiments, locking device 7 also can adopt steel plate.
Preferably, welding equipment 12 is automatic welding carriage.Welding equipment 12 also can be cross manipulator.
Easily know, because the diameter of double-rope groove pulley is large, so need to arrange jig 11, automatic welding carriage 10 is arranged on jig 11.
The embodiment of the present invention adopts pulley moulding bed double-rope groove pulley to be welded vertically to be placed, and rotate double-rope groove pulley to be welded by pulley moulding bed, keep position while welding constant, in this case, adopt the welding of submerged arc welding level, depth of penetration is large, and welding quality is good and stablize, first-time qualification rate is high, greatly shortens the manufacture cycle and has saved manufacture cost.
(diameter is 5m to adopt the welding method of the embodiment of the present invention and welding equipment to weld 128 double-rope groove pulley, large steel loop thickness is 45mm, wheel rim and large steel loop all adopt Q345D low-alloy high-strength steel to make, and the weld metal of each double-rope groove pulley deposition reaches 400kg) after, detect through ultrasonic flaw detection, first-time qualification rate more than 99.8%, compared with prior art can economize in raw materials cost and cost of labor about 600,000 yuan, and the manufacture cycle shortens more than one times.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a welding method for double-rope groove pulley, described method comprises:
At least one double-rope groove pulley to be welded is placed on roller moulding bed;
The position to be welded of described double-rope groove pulley is preheated to 100 DEG C-150 DEG C;
Submerged arc welding is carried out to the position after described double-rope groove pulley preheating;
It is characterized in that, when at least one double-rope groove pulley to be welded being placed on roller moulding bed, keep the axis of described double-rope groove pulley to be level, the both sides of roller moulding bed arrange side guide wheel, and described side guide wheel is arranged near the end face of described double-rope groove pulley.
2. welding method as claimed in claim 1, is characterized in that, described at least one double-rope groove pulley to be welded is vertically placed on roller moulding bed before, described method also comprises:
At least two described double-rope groove pulley are passed through locking device axial restraint together.
3. welding method as claimed in claim 2, it is characterized in that, described locking device comprises cylinder, cover plate and bolt, the endoporus of the external diameter of described cylinder and the wheel hub of described double-rope groove pulley matches, one end of described cylinder is provided with outward flange, be bolted to the other end of described cylinder described in described cover plate passes through, described at least two double-rope groove pulley are fixed between described outward flange and described cover plate.
4. welding method as claimed in claim 1, it is characterized in that, described position to be welded comprises weld seam and described weld seam both sides 70mm-90mm.
5. welding method as claimed in claim 1, is characterized in that, described submerged arc welding adopts automatic welding carriage to carry out.
6. welding method as claimed in claim 5, is characterized in that, the welding wire that described submerged arc welding adopts is H10Mn2, solder flux is HJ350, welding current is 700A-750A, weldingvoltage is 36V-38V, welding speed is 38cm/min-45cm/min.
7. a welding equipment for double-rope groove pulley, for realizing the welding method as described in any one of claim 1-6, is characterized in that, described equipment comprises:
For placing and rotating the pulley moulding bed of double-rope groove pulley to be welded, the side guide wheel being arranged on described pulley moulding bed both sides and welding equipment, described side guide wheel is arranged near the end face of described double-rope groove pulley.
8. welding equipment as claimed in claim 7, is characterized in that, described equipment also comprises for by least two described double-rope groove pulley axial restraints locking device together.
9. welding equipment as claimed in claim 8, it is characterized in that, described locking device comprises cylinder, cover plate and bolt, the endoporus of the external diameter of described cylinder and the wheel hub of described double-rope groove pulley matches, one end of described cylinder is provided with outward flange, be bolted to the other end of described cylinder described in described cover plate passes through, described at least two double-rope groove pulley are fixed between described outward flange and described cover plate.
10. welding equipment as claimed in claim 7, it is characterized in that, described welding equipment is automatic welding carriage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126038.4A CN102632329B (en) | 2012-04-26 | 2012-04-26 | A kind of welding method of double-rope groove pulley and welding equipment |
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| CN201210126038.4A CN102632329B (en) | 2012-04-26 | 2012-04-26 | A kind of welding method of double-rope groove pulley and welding equipment |
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| CN102632329A CN102632329A (en) | 2012-08-15 |
| CN102632329B true CN102632329B (en) | 2015-07-29 |
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| CN107498247B (en) * | 2017-09-26 | 2023-09-12 | 常州市海之杰港口起重设备有限公司 | Clamping and positioning mechanism of automatic pulley welding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB391281A (en) * | 1931-08-08 | 1933-04-27 | Allis Chalmers Mfg Co | Improvements in sheet metal pulley |
| GB646186A (en) * | 1948-02-25 | 1950-11-15 | Benjamin Greene | Improvements in or relating to pulleys or wheels |
| CN2210971Y (en) * | 1995-02-25 | 1995-10-25 | 上海申周机械厂 | Splayed double-width plate rolling pulley |
| CN100563910C (en) * | 2008-09-28 | 2009-12-02 | 武汉船用机械有限责任公司 | A kind of batch processing method of flange blank of pulley with large diameter |
| CN101457829B (en) * | 2008-12-29 | 2011-03-09 | 杭州西子孚信科技有限公司 | Case type wheel and method for manufacturing same |
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