Equipment and method for manufacturing large-diameter steel pipe bell mouth
A production method and bell mouth technology, which is applied in the field of pipe fitting processing and construction, can solve the problems of damaged galvanized layer, irregular bell mouth, and low efficiency, and achieve the effects of preventing scratching the insulating layer, high production efficiency, and simple operation
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Embodiment 1
[0033] like figure 1 , 2 As shown, a large-diameter steel pipe bell mouth production equipment, the equipment includes a rolling groove machine 5 and a liftable material rack 1; the rolling groove machine 5 includes a rotating main shaft, a pressing wheel 3 above the main shaft, and a pressing wheel pressing operation. The pressure roller 3 is a cylinder, and a bearing attachment 4 is fixed outside the rotating main shaft bearing. One end of the bearing attachment 4 is a steel cylinder 401 and the other end is an annular protrusion with a diameter larger than the steel cylinder. Rib 402, the end of the annular raised rib 402 of the bearing attachment is set at one end of the main body of the rolling groover, and the steel cylinder 401 is located outside the rolling groover; the elevating material rack 1 includes a support platform 8 and height-adjustable support legs, Two support wheels 6 are arranged on the support platform 8, and the two support wheels 6 are located in the ...
Embodiment 2
[0046]A method for making a large-diameter steel pipe flare using the equipment in Example 1.
[0047] like Figure 4 , 5 shown, including the following production steps:
[0048] 1) Place the elevating rack 1 on the main axis of the trough machine 5, and adjust the distance L from the elevating rack to the trough machine and the height H of the elevating rack according to the eversion angle θ of the bell mouth to be made. The height H of the lifting rack is higher than the height h of the main shaft of the roller groover;
[0049] 2) Put one end of the steel pipe 2 into the steel cylinder 401 of the bearing attachment 4 of the rolling groove machine, and make the end of the steel pipe 2 stand against the annular ridge 402 of the bearing attachment, and the other end of the steel pipe 2 rests on the lifting rack. Between the two support wheels 7, the steel pipe 2 is inclined downward from the liftable material rack 1 to the bearing attachment 4 of the rolling groove machine...
Embodiment 3
[0053] A method for making a large-diameter steel pipe flare using the equipment in Example 1.
[0054] like Image 6 shown, including the following production steps:
[0055] 1) Place the elevating rack 1 on the main axis of the trough machine 5, and adjust the height H of the elevating rack 1 to be the same as the height h of the main shaft of the trough machine;
[0056] 2) Put one end of the steel pipe 2 into the annular ridge 402 of the bearing attachment 4 of the rolling groove machine, and the other end of the steel pipe 2 is placed between the two supporting wheels 6 of the elevating material rack 1, and make the axis of the steel pipe and the rolling groove. The main axis of the machine is parallel;
[0057] 3) Press down the operating device through the pressure roller 3, so that the pressure roller 3 contacts the steel pipe 2 and presses down, rotates the steel pipe by rotating the main shaft, and increases the pressure of the pressure roller while the steel pipe ...
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Abstract
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