阅读说明：本技术 一种采用链式钢管对口器的钢管对接方法 (Steel pipe butt joint method adopting chain type steel pipe butt joint device ) 是由 秦电文 陈国宝 于 2018-08-06 设计创作，主要内容包括：本发明公开了一种采用链式钢管对口器的钢管对接方法,它涉及钢管对接技术领域；它的对接方法为：步骤一：组装链式钢管对口器：步骤二：钢管的初步对接：在两个钢管的对接处均涂刷有热熔胶,让在对接处绕接有热熔膜,接着将链式钢管对口器绕在对接位置,然后将调整块从调整板的孔中穿过,再安装上压块；在压块和调整板之间放入螺旋千斤顶,螺旋千斤顶使链式对口器收紧；在压板的中开设有贯通的螺纹孔；步骤三：进行钢管对接的校正；步骤四：对加热部位进行冷却,冷却时,其校正螺栓不拆除,待冷却完成后校正螺栓的拆除；本发明在使用时能实现快速对接,且对接后能实现快速校正,校正时间短；在校正时便于快速压制,且压制准确度,便于对接与拆卸工具。(The invention discloses a steel pipe butt joint method adopting a chain type steel pipe butt joint device, and relates to the technical field of steel pipe butt joint; the butt joint method comprises the following steps: the method comprises the following steps: assembling a chain type steel pipe aligning device: step two: preliminary butt joint of steel pipes: hot melt adhesive is coated at the butt joint of the two steel pipes, a hot melt film is wound at the butt joint, then the chain type steel pipe butt joint device is wound at the butt joint position, then the adjusting block penetrates through the hole of the adjusting plate, and then the pressing block is installed; a screw jack is arranged between the pressing block and the adjusting plate, and the screw jack enables the chain type mouth aligning device to be tightened; a through threaded hole is formed in the pressure plate; step three: correcting butt joint of the steel pipes; step four: cooling the heating part, wherein the correcting bolt is not removed during cooling, and the correcting bolt is removed after cooling is finished; the invention can realize quick butt joint when in use, can realize quick correction after butt joint and has short correction time; the quick pressing is convenient during correction, the pressing accuracy is high, and the butt joint and the dismounting tool are convenient.)

1. A steel pipe butt joint method adopting a chain type steel pipe butt joint device comprises the following butt joint method:

the method comprises the following steps: assembling a chain type steel pipe aligning device:

1.1, splicing a plurality of chain sheets, a plurality of limiting blocks, a plurality of high-strength bolts, adjusting blocks and adjusting plates;

1.2, detecting the assembled chain type steel pipe aligning device assembled in the step 1.1 in the step one, and performing abutting joint after the detection is qualified;

step two: preliminary butt joint of steel pipes: the method is characterized in that: hot melt adhesive is coated at the butt joint of the two steel pipes, a hot melt film is wound at the butt joint, then the chain type steel pipe butt joint device is wound at the butt joint position, then the adjusting block penetrates through the hole of the adjusting plate, and then the pressing block is installed; a screw jack is arranged between the pressing block and the adjusting plate, and the screw jack enables the chain type mouth aligning device to be tightened; a through threaded hole is formed in the pressure plate;

step three: and (3) correcting butt joint of the steel pipes: when correction is needed, preheating a pipe orifice, carrying out hot melting on a hot melting film on the pipe orifice, detecting a position to be corrected, installing fixing screws on threaded holes of pressure plates on two sides of the correction position, fixing reinforcing plates on the two fixing screws, correcting bolts on the reinforcing plates, then pressing down through the correcting bolts, heating a pressing part when pressing down, and pressing to be flush with the pipe orifice;

step four: and cooling the heating part, wherein the correcting bolt is not detached during cooling, and the butt joint is completed after the correcting bolt is detached after cooling is completed.

2. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: the correcting bolt is a high-strength correcting bolt, and the diameter of the correcting bolt is 10-15 cm.

3. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: and cooling in the fourth step is cooling by refrigerating wind, and the cooling is carried out until the temperature is 30-50 ℃.

4. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: the preheating temperature in the third step is 90-120 ℃.

5. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: the reinforcing plate is evenly provided with a plurality of correcting threaded holes, and reinforcing ribs are welded on the side wall of the reinforcing plate.

6. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: the heating temperature of the middle and lower pressing part in the third step is 180-220 ℃.

7. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: the hot melt film is a transparent hot melt film.

8. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: correcting bolt rotates for rotating through the spanner when pushing down in step three, and for observing the mouth of pipe condition after making a turn or half a turn during rotatory.

9. The steel pipe butt joint method adopting the chain type steel pipe butt joint device according to claim 1, characterized in that: and in the fourth step, when the correcting bolt is removed, the correcting bolt is rotated for half a circle or a circle, and then whether the pipe orifice rebounds is observed, if so, the correcting bolt continues to be corrected, and if not, the correcting bolt is removed.

Technical Field

The invention belongs to the technical field of steel pipe butt joint, and particularly relates to a steel pipe butt joint method adopting a chain type steel pipe butt joint device.

Background

The chain type steel pipe aligning device comprises a plurality of chain pieces, a plurality of limiting blocks, a plurality of high-strength bolts, an adjusting block, a pressing block, an adjusting plate and a screw jack; the chain pieces are connected with each other by high-strength bolts to form two parallel chains for winding the steel pipe, and a plurality of limiting blocks attached to the outer side surface of the steel pipe are fixedly connected between the chains; the same end of two chains all is connected with the adjusting block that has the regulation length, and the end of adjusting block has demountable installation's briquetting, and the adjusting plate that has the confession adjusting block and pass is connected to the other end of two chains, and screw jack installs between adjusting plate and clamp plate, tensioning chain.

In the steel pipe butt joint adopting the chain type steel pipe butt joint device, the accuracy of butt joint is mainly realized, and the butt joint difficulty is reduced, but the existing butt joint method has the phenomena of long butt joint time and inaccurate butt joint easily during correction, so that the operation is complex, and the efficiency is reduced.

Disclosure of Invention

The problems that the existing butt joint method is long in butt joint time and inaccurate in butt joint easily occurs during correction, so that the operation is complex and the efficiency is reduced are solved; the invention aims to provide a steel pipe butt joint method adopting a chain type steel pipe butt joint device.

The invention relates to a steel pipe butt joint method adopting a chain type steel pipe butt joint device, which comprises the following steps:

the method comprises the following steps: assembling a chain type steel pipe aligning device:

1.1, splicing a plurality of chain sheets, a plurality of limiting blocks, a plurality of high-strength bolts, adjusting blocks and adjusting plates;

1.2, detecting the assembled chain type steel pipe aligning device assembled in the step 1.1 in the step one, and performing abutting joint after the detection is qualified;

step two: preliminary butt joint of steel pipes: hot melt adhesive is coated at the butt joint of the two steel pipes, a hot melt film is wound at the butt joint, then the chain type steel pipe butt joint device is wound at the butt joint position, then the adjusting block penetrates through the hole of the adjusting plate, and then the pressing block is installed; a screw jack is arranged between the pressing block and the adjusting plate, and the screw jack enables the chain type mouth aligning device to be tightened; a through threaded hole is formed in the pressure plate;

step three: and (3) correcting butt joint of the steel pipes: when correction is needed, preheating a pipe orifice, carrying out hot melting on a hot melting film on the pipe orifice, detecting a position to be corrected, installing fixing screws on threaded holes of pressure plates on two sides of the correction position, fixing reinforcing plates on the two fixing screws, correcting bolts on the reinforcing plates, then pressing down through the correcting bolts, heating a pressing part when pressing down, and pressing to be flush with the pipe orifice;

step four: and cooling the heating part, wherein the correcting bolt is not detached during cooling, and the butt joint is completed after the correcting bolt is detached after cooling is completed.

Preferably, the correcting bolt is a high-strength correcting bolt, and the diameter of the correcting bolt is 10-15 cm.

Preferably, the cooling in the fourth step is cooling by refrigerating wind, and the cooling is carried out to 30-50 ℃.

Preferably, the preheating temperature in the third step is 90-120 ℃.

Preferably, a plurality of correction threaded holes are uniformly formed in the reinforcing plate, and reinforcing ribs are welded to the side wall of the reinforcing plate.

Preferably, the temperature for heating the lower pressing part in the third step is 180-220 ℃.

Preferably, the hot melt film is a transparent hot melt film.

Preferably, when the correcting bolt in the third step is pressed down, the correcting bolt is rotated by a wrench, and the condition of the pipe orifice is observed after the correcting bolt rotates for one circle or half circle.

Preferably, when the correcting bolt is removed in the fourth step, the correcting bolt is firstly rotated for a half circle or a circle, and then whether the pipe orifice has the phenomenon of springback or not is observed, if so, the correcting bolt continues to be corrected, and if not, the correcting bolt is removed.

Compared with the prior art, the invention has the beneficial effects that:

the method has the advantages that firstly, quick butt joint can be realized during use, quick correction can be realized after butt joint, the correction time is short, and the time can be saved;

and secondly, the rapid pressing is convenient during correction, the pressing accuracy is high, the operation is simple and convenient, and the butt joint and the dismounting tool are convenient.

Detailed Description