CN-122007790-A - Pipe prefabrication welding set

CN122007790ACN 122007790 ACN122007790 ACN 122007790ACN-122007790-A

Abstract

The invention discloses a pipe prefabrication welding device, which relates to the technical field of nuclear power pipe welding and comprises a first supporting mechanism and a second supporting mechanism, wherein the first supporting mechanism and the second supporting mechanism are arranged at intervals, a first supporting wheel set, a first lifting device, a pressing wheel set and a driving device are arranged on the first supporting mechanism, the pressing wheel set is arranged above the first supporting wheel set, the first lifting device is used for adjusting the height of the pressing wheel set, the driving device is connected with the first supporting wheel set and is used for driving a pipe between the first supporting wheel set and the pressing wheel set to rotate, the driving device is provided with a pedal switch, the pedal switch is of a pedal structure and is electrically connected with the driving device through a wire, the pedal switch is arranged at a welding seam position, and the second supporting mechanism is provided with a second lifting device, and the second supporting wheel set is arranged on the second lifting device. The pipe prefabrication welding device provided by the invention has the advantages of simple structure, lighter weight, smaller occupied area and simplicity in operation.

Inventors

WANG GUANGYE
ZHOU LIJUN
WEI PAN
LIU JIANGYONG
LONG XIANGLIN
FU KEXIN
Huo Zhilei
WANG CONGJUN
LI BAOSHAN
DENG YUNFENG
AN XIAOWEI
MA XIN

Assignees

中国核电工程有限公司

Dates

Publication Date: 20260512
Application Date: 20260320

Claims (10)

1. The pipeline prefabrication welding device is characterized by comprising a first supporting mechanism (1) and a second supporting mechanism (2), wherein the first supporting mechanism (1) and the second supporting mechanism (2) are arranged at intervals; The device comprises a first supporting mechanism (1), a first supporting wheel set (3), a first lifting device (4), a pressing wheel set (5) and a driving device (6), wherein the pressing wheel set (5) is arranged above the first supporting wheel set (3), the first lifting device (4) is used for adjusting the height of the pressing wheel set (5), the driving device (6) is connected with the first supporting wheel set (3) and used for driving a pipeline (9) between the first supporting wheel set (3) and the pressing wheel set (5) to rotate, the driving device (6) is provided with a foot switch (603), the foot switch (603) is of a pedal structure, the foot switch (603) is electrically connected with the driving device (6) through a wire, and the foot switch (603) is arranged at a welding seam position; the second supporting mechanism (2) is provided with a second lifting device (7), and a second supporting wheel set (8) is arranged on the second lifting device (7).
2. The pipe prefabrication welding apparatus according to claim 1, wherein the driving means (6) comprises a motor (601) and a programmable logic controller (602), the programmable logic controller (602) being electrically connected to the motor (601) and the foot pedal (603), respectively.
3. The pipe prefabrication welding device according to claim 2, characterized in that the drive shaft of the motor (601) is connected with a drive wheel, which drive wheel is connected with the first support wheel set (3) by means of a drive belt.
4. The pipe prefabrication welding device according to claim 1, characterized in that the first support wheel set (3) comprises two transmission shafts (301) arranged in parallel at intervals, wherein both ends of the two transmission shafts (301) are respectively connected with a first support wheel (302), and at least one transmission shaft (301) is connected with the driving device (6).
5. The pipe prefabrication welding set according to claim 4, characterized in that at least one of the transmission shafts (301) is connected to a sliding device (304), by means of which sliding device (304) the distance between the two transmission shafts (301) is adjusted.
6. The pipe prefabrication welding device according to claim 5, wherein the sliding device (304) comprises at least two sliding rails arranged in parallel at intervals, wherein a sliding block is connected to the sliding rails in a sliding manner, wherein the transmission shaft (301) is rotatably arranged on the sliding block, and a locking structure is arranged between the sliding block and the sliding rails.
7. The pipe prefabrication welding device according to claim 1, characterized in that the first lifting means (4) comprises a guide (401), a slide (402) and locking means (403), the guide (401) extending in a vertical direction, the slide (402) being arranged slidingly on the guide (401), the locking means (403) being arranged on the slide (402) for locking the slide (402).
8. The pipe prefabrication welding apparatus according to claim 7, wherein a cross beam (404) is connected to the slide (402), wherein the cross beam (404) has a transverse guiding structure (405) thereon, and wherein the pinch roller set (5) is connected to the transverse guiding structure (405).
9. The pipe prefabrication welding device according to claim 8, wherein the compacting wheel set (5) comprises a compacting wheel frame (501), wherein two connecting rods are arranged on the compacting wheel frame (501) at intervals in parallel, two ends of each connecting rod are respectively connected with a compacting wheel (502), the compacting wheel frame (501) is connected with a vertical threaded rod (503), and the vertical threaded rod (503) is connected with the transverse guiding structure (405).
10. The pipe prefabrication welding device according to any of the claims 1-9, wherein the second lifting means (7) comprises a vertical screw (701), the vertical screw (701) is connected to the support frame of the second support means (2) by means of threads, the top end of the vertical screw (701) is rotatably connected to the second support wheel set (8), and the bottom end is provided with an operating rotation means (702).

Description

Pipe prefabrication welding set Technical Field The invention relates to the technical field of nuclear power pipeline welding, in particular to a pipeline prefabrication welding device. Background At present, the number of welding seams of the installation pipelines of a single unit in a nuclear power station under construction is hundreds of thousands of times. Problems are faced if all welds are made in the field. The site space position is limited, the temperature and humidity of the environment are difficult to effectively control, so that the qualification rate of the welding seam is difficult to control, and the quality of the welding seam cannot be practically improved. The poor quality of the welding seam can directly affect the service life of the pipeline and increase the frequency of inspection and maintenance in the later operation stage. In order to ensure the primary qualification rate of the welding quality of the welding seam and improve the working efficiency, in the initial stage of unit construction, a construction unit finely divides according to the system, and effectively evaluates the hole expansion of a field room, so as to further prepare a workshop welding seam prefabrication list, and aim to maximize the number of the prefabricated welding seams of a single system factory building. The workshop has a plurality of factors which are favorable for welding, such as easy control of environment temperature and humidity, wide environment vision, no shielding of welding positions and the like, and the factors avoid adverse effects on the quality of the welding seam caused by adverse environments, improve the primary qualification rate of the welding seam and avoid negative effects on the quality of the pipeline caused by repeated repair. Furthermore, the skill level of the welding operator has a direct impact on the weld quality. Due to the existence of human operation factors, the welding task of high strength and high quality on site is faced, and according to relevant test data, the qualification rate of welding of the welding seams of the same type at the same position is always higher than that of welding at all positions, especially at a flat welding position, the qualification rate is higher, and the quality is easier to guarantee. In the age of full-automatic popularization today, semi-automatic technology is also quite mature for operations in workshop prefabricated welds that cannot be completed by full-automatic welding. However, the existing full-automatic or semi-automatic pipeline prefabrication welding device has the problems of complex structure and large volume and weight. Disclosure of Invention In view of the above, the invention provides a pipe prefabrication welding device, which solves the problems of complex structure, large volume and large weight of the existing full-automatic or semi-automatic pipe prefabrication welding device. The invention provides a pipe prefabrication welding device which comprises a first supporting mechanism and a second supporting mechanism, wherein the first supporting mechanism and the second supporting mechanism are arranged at intervals; The device comprises a first supporting mechanism, a second supporting mechanism, a first lifting device, a pressing wheel set and a driving device, wherein the first supporting mechanism is provided with a first supporting wheel set, the first lifting device, the pressing wheel set and the driving device, the pressing wheel set is arranged above the first supporting wheel set, the first lifting device is used for adjusting the height of the pressing wheel set, the driving device is connected with the first supporting wheel set and used for driving a pipeline between the first supporting wheel set and the pressing wheel set to rotate, the driving device is provided with a foot switch, the foot switch is of a pedal structure, the foot switch is electrically connected with the driving device through a wire, and the foot switch is arranged at a welding seam position; The second supporting mechanism is provided with a second lifting device, and a second supporting wheel set is arranged on the second lifting device. Optionally, the driving device comprises a motor and a programmable logic controller, and the programmable logic controller is respectively and electrically connected with the motor and the foot switch. Optionally, a driving wheel is connected to a driving shaft of the motor, and the driving wheel is connected to the first supporting wheel set through a driving belt. Optionally, the first support wheelset includes two transmission shafts of parallel interval setting, and two ends of two transmission shafts are connected with first support wheel respectively, and at least one transmission shaft with drive arrangement connects. Optionally, at least one of the drive shafts is connected to a sliding device by means of which the distance between the two drive shafts is adjusted. Optionally, the sli