Large pipeline connecting auxiliary device

Abstract

A large pipeline connecting auxiliary device comprises a sliding rail fixedly arranged on the ground, a movable ring welding device and movable cast pipe supporting seats, the movable ring welding device and the movable cast pipe supporting seats are installed on the sliding rail and can slide along the sliding rail, at least two movable cast pipe supporting seats are arranged on one side of the movable ring welding device, and the height of the movable cast pipe supporting seats can be adjusted. And at least four movable cast pipe supporting seats are arranged on the other side of the movable ring welding equipment. The auxiliary device provides a platform for carrying out a splicing experiment and a welding experiment of the spheroidal graphite cast pipe, butt joint and taking out of the spheroidal graphite cast pipe are achieved through mechanical equipment, the labor intensity of operators is greatly reduced, the experiment efficiency is improved, and meanwhile the experiment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline production experiments, and particularly relates to a large pipeline joint auxiliary device. Background Art

[0002] In the manufacturing process of ductile iron pipes, in order to verify the performance of ductile iron pipes, some experimental activities need to be carried out. Currently, the insertion experiment and welding experiment of ductile iron pipes are often carried out. As Figure 1 shown in [reference], one is the insertion experiment of the pipeline, where the socket of the ductile iron pipe is inserted into the spigot to verify the self-locking ability. The other is the welding experiment of the pipeline, where two pipes of the same diameter are butt-welded together by a circumferential welding device.

[0003] Currently, there is no good platform to support the above two experiments. When verifying, it is often necessary to rely on some production workstations or workstation tools to assist in the work, with a large workload, high labor intensity, low work efficiency, and it is also difficult to ensure the experimental effect. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a large pipeline joint auxiliary device. The auxiliary device provides a platform for carrying out the insertion experiment and welding experiment of ductile iron pipes. The butt-joint and removal of ductile iron pipes are realized through mechanical equipment, greatly reducing the labor intensity of operators, improving the experimental efficiency, and having a compact structure, small floor area, and also improving the experimental effect.

[0005] The technical solution of the utility model is as follows:

[0006] A large pipeline joint auxiliary device includes a sliding track fixedly arranged on the ground and a movable circumferential welding device and a movable pipe support seat installed on the sliding track and capable of sliding along the sliding track. At least two movable pipe support seats are arranged on one side of the movable circumferential welding device, and the height of the movable pipe support seat is adjustable. At least four movable pipe support seats are arranged on the other side of the movable circumferential welding device.

[0007] Further, the cross-section of the sliding track is in the shape of "I".

[0008] Further, a locking mechanism is arranged between the sliding track and the movable circumferential welding device and the movable pipe support seat.

[0009] As described above for the large pipe connection auxiliary device, the movable ring welding equipment includes an equipment slide base, an equipment support body, a rotating welding machine base, and a welding machine. A chute matching the sliding track is provided at the lower part of the equipment slide base. The equipment support body is fixedly connected to the top of the equipment slide base. The rotating welding machine base is rotatably installed in the hole of the equipment support body. A hole larger than the outer diameter of the socket joint ductile iron pipe or the spliced ductile iron pipe is provided at the center of the rotating welding machine base. The welding machine is arranged on the outer end face of the rotating welding machine base. The movable ring welding equipment further includes a rotating welding machine base rotation driving device.

[0010] Further, the rotating welding machine base is installed on the equipment support body through a bearing.

[0011] Further, the rotating welding machine base rotation driving device includes a large gear ring arranged on the outer periphery of the rotating welding machine base and a gear arranged on the output shaft of the driving motor. The gear and the large gear ring are matched, and the driving motor is fixed on the equipment support body.

[0012] As described above for the large pipe connection auxiliary device, the movable cast pipe support seat includes a support seat slide base, a telescopic rod, and a support seat body. A chute matching the sliding track is provided at the lower part of the support seat slide base. One end of the telescopic rod is fixed to the top of the support seat slide base, and the other end is fixedly connected to the support seat body.

[0013] Further, a placement groove matching the outer shape of the socket joint ductile iron pipe or the spliced ductile iron pipe is provided at the upper part of the support seat body.

[0014] Further, the telescopic rod adopts a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0015] The beneficial effects of the present utility model are as follows:

[0016] A large pipe connection auxiliary device disclosed by the present utility model provides a platform for carrying out the insertion experiment and welding experiment of ductile iron pipes. The butt joint and removal of ductile iron pipes are realized through mechanical equipment, greatly reducing the labor intensity of operators, improving the experimental efficiency, having a compact structure, small floor area, and also improving the experimental effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiments below, the solutions and advantages of the present application will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model.

[0018] In the drawings:

[0019] Figure 1 It is a schematic diagram of the insertion experiment and welding experiment;

[0020] Figure 2 This is a schematic structural view of an auxiliary device for large pipeline connection in the present utility model;

[0021] Figure 3 This is a schematic structural view of a movable cast pipe support seat;

[0022] Figure 4 For Figure 3 left view of

[0023] Figure 5 This is a schematic structural view of a movable ring welding device;

[0024] Figure 6 This is a schematic view of the application of an auxiliary device for large pipeline connection in the present utility model in a welding experiment;

[0025] Figure 7 This is a schematic view of the application of an auxiliary device for large pipeline connection in the present utility model in an insertion experiment.

[0026] The components represented by the reference numerals in the present utility model are:

[0027] 1, socket joint ductile iron pipe; 2, spliced ductile iron pipe; 100, movable ring welding device; 101, equipment sliding seat; 102, equipment support body; 103, bearing; 104, rotating welding machine seat; 105, welding machine; 106, large gear ring; 107, gear; 108, drive motor; 200, movable cast pipe support seat; 201, support seat sliding seat; 202, telescopic rod; 203, support seat body; 2031, placement groove; 204, set screw bolt; 300, sliding track. Specific embodiments

[0028] The following will describe the exemplary embodiments of the present disclosure in more detail with reference to the drawings. It should be noted that these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. The present disclosure can be implemented in various forms and should not be limited by the embodiments described herein.

[0029] Embodiment 1

[0030] As Figure 2 shown, the auxiliary device for large pipeline connection in this embodiment includes a sliding track 300 fixedly arranged on the ground and a movable ring welding device 100 and a movable cast pipe support seat 200 installed on the sliding track 300 and capable of sliding along the sliding track 300. The cross-section of the sliding track 300 is in the shape of a "work" character. At least two movable cast pipe support seats 200 are arranged on one side of the movable ring welding device 100, and the height of the movable cast pipe support seat 200 is adjustable. At least four movable cast pipe support seats 200 are arranged on the other side of the movable ring welding device 100.

[0031] Furthermore, a locking mechanism is provided between the sliding track 300, the movable ring welding device 100, and the movable cast pipe support base 200. Specifically, as Figure 4 shown, in an embodiment where a movable cast pipe support base 200 cooperates with the sliding track 300, a threaded hole is provided on the support seat slider 201 of the movable cast pipe support base 200 that cooperates with the sliding track 300. A locking knob bolt 204 that is threadedly engaged therewith is installed in the threaded hole. The end of the locking knob bolt 204 is a locking head, which can generally be set to a round head shape. When the locking head is closely attached to the side surface of the sliding track 300, the fixation of the support seat slider 201 and the sliding track 300 can be achieved. When the locking knob bolt 204 is loosened in the reverse direction, the support seat slider 201 can slide along the sliding track 300 under the drive of an external force.

[0032] As Figure 5 shown, the movable ring welding device 100 includes a device slider 101, a device support body 102, a rotating welding machine seat 104, and a welding machine 105. A chute that cooperates with the sliding track 300 is provided at the lower part of the device slider 101. The device support body 102 is fixedly connected to the top of the device slider 101. The rotating welding machine seat 104 is rotatably installed in the hole of the device support body 102. A hole larger than the outer diameter of the socket joint ductile iron pipe 1 or the spliced ductile iron pipe 2 is provided at the center of the rotating welding machine seat 104. The welding machine 105 is provided on the outer end face of the rotating welding machine seat 104. The height of the welding machine itself or the welding torch thereon can be adjusted radially to adapt to different welding pipe diameters and weld positions. The movable ring welding device 100 further includes a rotating welding machine seat rotation driving device.

[0033] In a specific embodiment, the rotating welding machine seat 104 is installed on the device support body 102 through a bearing 103.

[0034] In a specific embodiment, the rotating welding machine seat rotation driving device includes a large gear ring 106 provided on the outer periphery of the rotating welding machine seat 104 and a gear 107 provided on the output shaft of the driving motor 108. The gear 107 and the large gear ring 106 cooperate, and the driving motor 108 is fixed on the device support body 102.

[0035] As Figure 3 and Figure 4As shown, the movable duct support base 200 includes a support base slide 201, a telescopic rod 202, and a support base body 203. A chute that mates with the sliding track 300 is provided at the lower part of the support base slide 201. One end of the telescopic rod 202 is fixed to the top of the support base slide 201, and the other end is fixedly connected to the support base body 203. A placement groove 2031 that mates with the outer shape of the socket joint ductile iron pipe 1 or the spliced ductile iron pipe 2 is provided at the upper part of the support base body 203. The telescopic rod 202 is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0036] Figure 6 It is a schematic diagram of the application of a large pipeline joint auxiliary device of the present invention in a welding experiment. When performing a circumferential welding experiment, use Figure 6 the two movable duct support bases 200 on the left and the two movable duct support bases 200 on the right shown in (a) of [Figure] to support the two spliced ductile iron pipes 2 to be welded respectively. Move these four movable duct support bases 200 closer to the movable circumferential welding device 100. After alignment, the welding torch of the welding machine 105 in the movable circumferential welding device 100 welds along the circumferential seam between the two spliced ductile iron pipes 2 as the rotating welding machine base 104 rotates.

[0037] After welding is completed, since the welded spliced ductile iron pipe 2 is sleeved in the rotating welding machine base 104 of the movable circumferential welding device 100 and cannot be directly lifted and removed, it needs to be pulled out to the right first. At this time, first lower the height of one movable duct support base 200 near the left side of the movable circumferential welding device 100, and use the remaining 3 movable duct support bases 200 to move the duct to the right. When the other movable duct support base 200 on the left also approaches the previously lowered movable duct support base 200, the height of the first movable duct support base 200 near the right side of the movable circumferential welding device 100 can be lowered first and then moved to the left until it moves past the center of gravity of the duct, and then its height and supporting function are restored. In this way, the two movable duct support bases 200 on the right side of the movable circumferential welding device 100 can play a supporting role, as Figure 6 shown in (b) of [Figure].

[0038] Next, lower the height of the movable duct support base 200 on the left side of the movable circumferential welding device 100 that is still playing a supporting role. The remaining two movable duct support bases 200 on the right side can be used to pull out the duct from the movable circumferential welding device 100 as a whole, as Figure 6 shown in (c) of [Figure]. After complete extraction, the duct can be lifted and removed.

[0039] Figure 7Schematic diagram of the application of an auxiliary device for large pipeline connection in the plugging experiment of the utility model. When conducting the plugging self-locking experiment, the mobile ring welding equipment 100 and the two mobile cast pipe support seats 200 on the left are no longer used and can be pushed as far to the left as possible to create an operating space. Place 2 socket-and-spigot ductile iron pipes 1 in the same direction on the 4 mobile cast pipe support seats 200 on the right, with each pair supporting one socket-and-spigot ductile iron pipe 1. As shown in (a) of Figure 7 , move the mobile cast pipe support seat 200 to insert the socket of the socket-and-spigot ductile iron pipe 1 into the socket of another socket-and-spigot ductile iron pipe 1, connecting end to end to complete the self-locking experiment, as shown in (b) of Figure 7 .

[0040] It can be seen that the large pipeline connection auxiliary device provided in this embodiment saves space and is easy to operate, providing a good platform for conducting plugging experiments and welding experiments on ductile iron pipes. The docking and removal of ductile iron pipes are realized through mechanical equipment, greatly reducing the labor intensity of operators, improving the experimental efficiency, and also improving the experimental effect.

Claims

1. A large-scale pipeline connecting auxiliary device, characterized in that: The invention comprises a sliding track (300) fixedly arranged on the ground, and a mobile ring welding device (100) and a mobile cast pipe support seat (200) installed on the sliding track (300) and capable of sliding along the sliding track (300); at least two mobile cast pipe support seats (200) are arranged on one side of the mobile ring welding device (100); and at least four mobile cast pipe support seats (200) are arranged on the other side of the mobile ring welding device (100); and the height of the mobile cast pipe support seats (200) is adjustable.

2. A large-scale pipeline connecting auxiliary device according to claim 1, characterized in that: The cross section of the sliding track (300) is in the shape of an I.

3. A large-scale pipeline connecting auxiliary device according to claim 2, characterized in that: A fastening mechanism is provided between the sliding track (300), the mobile ring welding device (100) and the mobile casting pipe support seat (200).

4. A large-scale pipeline connecting auxiliary device according to claim 3, characterized in that: The mobile ring welding device (100) comprises a device slide (101), a device support body (102), a rotating welding machine seat (104) and a welding machine (105); a sliding groove matching with a sliding track (300) is arranged at the lower part of the device slide (101); the device support body (102) is fixedly connected to the top of the device slide (101); the rotating welding machine seat (104) is rotatably installed in a hole of the device support body (102); a hole larger than the outer diameter of a socket-type ductile iron pipe (1) or a spliced ​​ductile iron pipe (2) is arranged at the center of the rotating welding machine seat (104); the welding machine (105) is arranged on the outer end surface of the rotating welding machine seat (104); the mobile ring welding device (100) further comprises a rotating welding machine seat rotation driving device.

5. A large-scale pipeline connecting auxiliary device according to claim 4, characterized in that: The rotating welding machine seat (104) is installed on the equipment supporting body (102) via a bearing (103).

6. A large-scale pipeline connecting auxiliary device according to claim 4, characterized in that: The rotary welding machine seat rotation driving device comprises a large gear ring (106) arranged on the outer periphery of the rotary welding machine seat (104) and a gear (107) arranged on the output shaft of a driving motor (108), the gear (107) and the large gear ring (106) cooperate, and the driving motor (108) is fixed on the equipment support body (102).

7. A large-scale pipeline connecting auxiliary device according to claim 3, characterized in that: The movable casting pipe support seat (200) comprises a support seat slide (201), a telescopic rod (202) and a support seat body (203); a slide groove matching with a sliding track (300) is arranged at the lower part of the support seat slide (201); one end of the telescopic rod (202) is fixed to the top of the support seat slide (201), and the other end is fixedly connected to the support seat body (203).

8. A large-scale pipeline connecting auxiliary device according to claim 7, characterized in that: A placement groove (2031) matching the outer shape of a socket-and-spigot type ductile iron pipe (1) or a spliced ​​ductile iron pipe (2) is provided on the upper part of the support seat body (203).

9. A large-scale pipeline connecting auxiliary device according to claim 8, characterized in that: The telescopic rod (202) is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

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