HLK Hydraulic Jack-up Anti-Drifting Adjustable Welding Rotator by Bolt
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HLK Hydraulic Jack-up Anti-Drifting Adjustable Welding Rotator by Bolt

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The HLK series Hydraulic Jack Up Welding Rotator discussed in this product section, is the sophisticated version of Adjusting Welding Turning Roll by bolt, added with anti drifting capability.



1.     Background of HLK series Hydraulic Anti Drifting Welding Rotator:

1)      What Problem is Anti Drifting Welding Roller Bed to Solve?

a)       During working of Welding Rotator and hence revolving of workpiece, axial drifting of the cylindrical parts on the Welding Turning Roll is a phenomenon not very rare seen, especially on those workpieces with several passes of circumferential external welding seam;

b)      This issue brings along problem of inferior welding quality and lower productivity of the Welding Rotator, which should be taken measures to be avoided;

2)      What are the Effective Solutions to Eliminate the Drifting in the Welding Rotator?

a)       Besides using welding seam tracing unit in the Welding Rotator, another more valid solution is to have anti drifting function on the Welding Turning Roll;

b)      Hence comes along development of the Hydraulic Anti Drifting Welding Turning Roll (The same name of Anti Drifting Welding Rotator).



2.     Working Principle of HLK series Hydraulic Anti Drifting Welding Roller Bed:

1)      Power Driving Source in the Anti Drifting Welding Rotator:

From the perspective of driving power during working of the Anti Drifting Welding Turning Roll, this special made Welding Turning Roll belongs to the specie of Hydraulic Anti Drifting Welding Turning Roll. Which means, its rectifying unit is hydraulic driven;

2)      Closed Loop Control Circuit in the Anti Drifting Welding Roller Bed:

a)       A movable electric detecting unit of splitting installation type is equipped with this Hydraulic Jack Up Welding Roller Bed;

b)      A piece of displacement sensor is fit on the above mentioned movable splitting type detecting unit of the Welding Rotator;

3)      Detecting and Control Loop in the Anti Drifting Welding Turning Roll:

a)       During working of the Anti Drifting Welding Rotator, or rotation of the cylindrical workpiece, the detecting unit is put at the proper position, so as to making the displacement sensor having direct contact with terminal surface of workpiece;

b)      A range of allowable deviation tolerance, or drifting tolerance, is set ahead of time into the control system of the Hydraulic Anti Drifting Welding Turning Roll, before starting on the Hydraulic Jack Up Welding Roller Bed. For example, ±3mm;

c)       The displacement sensor detects real time deviation of workpiece all along, during the entire working period of the Anti Drifting Welding Rotator;

d)      Whenever displacement of the workpiece detected exceeds the allowable deviation limit tolerance, hydraulic oil cylinder of the Anti Drifting Welding Roller Bed acts: It uplifts terminal of the workpiece, to make the workpiece rotation back to within the preset eligible tolerance again;

e)      This detecting and correcting circle continues all along, during the whole working phase of the Hydraulic Anti Drifting Welding Turning Roll, making sure deviation of workpiece to be confined all the while.



3.     Applicable Loading Weight of the HLK Hydraulic Anti Drifting Welding Turning Roll:

1)      This group of Hydraulic Anti Drifting Welding Roller Bed has loading capacity of 60Ton to 600Ton, from the product group of HLK Welding Rotator adjusting by bolt;

2)      Supplementary Notes on the HLK Hydraulic Anti Drifting Welding Rotator:

a)       In the HLK series Welding Turning Roll adjusting with bolt, there is another kind of Hydraulic Jack Up Welding Roller Bed which works together with Welding Positioner;

b)      This product is used for tilting up the workpiece, instead of introducing Anti drifting function. For detail, please check product section of “Custom Made Tilting type Welding Rotator for Industry”.



4.     Classification of Hydraulic Jack Up Welding Roller Bed with Anti Drifting Function:

1)      Besides dividing the Anti Drifting Welding Rotator in the criteria of loading weight as the above mentioned, this group of products can also be divided into Stationary Anti Drifting Welding Roller Bed, and Traveling type;

2)      The Anti Drifting Welding Rotator we introduce in this product section is stationary type;

3)      The traveling type Anti Drifting Welding Rotator we will have discussion in the next product section of “HLK Anti Drifting and Traveling Adjustable Welding Rotator by Bolt”.



5.     Technical Parameters of HLK series Hydraulic Anti Drifting Welding Rotator:

Below are technical parameters of HLK Anti Drifting Welding Roller Bed (Welding Turning Roll):

HLK Hydraulic Anti   Drifting Welding Rotator

Model

HLK60

HLK80

HLK100

HLK160

HLK250

HLK400

HLK500

HLK630

Max. loading  (Ton)

60

80

100

160

250

400

500

630

Work-piece

D (mm)

ø700

~5000

ø700

~5500

ø700

~6000

ø1000

~6000

ø1000

~7500

ø1000

~7500

ø1000

~8000

ø1000

~8500

PU   roller (mm)

D1

450

500

550

Metallic   rollers are used for large-tonnage roller bed

W1

120

120

120

Metallic roller (mm)

D2

444

490

538

620

700

800

800

850

W2

70

70

100

220

260

300

300

350

Linear   speed (m/h)

6 ~ 60

Motor power( kW)

2×1.5

2×2.2

2×2.2

2×4

2×5.5

2×5.5

2×5.5

2×7.5


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