A clamping mechanism for seamless 3PE anticorrosion treatment of bent pipes

Abstract

The utility model provides a kind of clamping mechanism for elbow seamless 3PE anticorrosion treatment, belong to elbow seamless fixing field, including cylinder and hydraulic oil cylinder, the hydraulic oil cylinder is fixedly installed in the intermediate position of cylinder by bolt, the side welding installation of cylinder is limited flange, the output end of the hydraulic oil cylinder is equipped with quick clamping mechanism, the quick clamping mechanism is located inside limited flange.The utility model can be flexibly adjusted according to the pipe diameter, bending angle and bending radius and other parameters of elbow, can effectively clamp to various specifications of elbow, without frequently replacing clamping component, improve the versatility and use range of equipment, can produce enough and stable clamping force, ensure that elbow does not occur displacement or wobble in the whole process of seamless 3PE anticorrosion treatment, guarantee the quality and effect of anticorrosion treatment.

Description

Technical Field

[0001] This utility model relates to the field of seamless pipe fixing, specifically, to a clamping mechanism for seamless 3PE anti-corrosion treatment of pipes. Background Technology

[0002] Pipeline construction requires a large number of bends. To extend the service life of the pipeline, these bends need to undergo 3PE anti-corrosion treatment. In the 3PE bend production process, the bends are hoisted onto a bend conveyor line, where they rotate around a central axis to complete the 3PE process. A primary challenge is how to quickly clamp and secure the bends.

[0003] The following defects still exist:

[0004] (1) Traditional clamping mechanisms are difficult to perfectly adapt to the special shape of the bend, and uneven local stress is likely to occur during the clamping process, which will cause the bend to deform and affect the quality of the pipeline. Moreover, the clamping force is difficult to control precisely. If the force is too small, the bend will shift during the anti-corrosion treatment, which will affect the anti-corrosion effect.

[0005] (2) Excessive force may damage the surface of the bent pipe. In addition, the existing mechanism is not flexible enough to adapt to different specifications of bent pipes, and the operation of replacing the clamping parts is cumbersome. To this end, a clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes is proposed. Utility Model Content

[0006] The purpose of this invention is to address the problems that existing traditional clamping mechanisms cannot perfectly adapt to the special shape of bent pipes, and that uneven local force is prone to occur during the clamping process, leading to deformation of the bent pipe and affecting the quality of the pipeline. Moreover, the clamping force is difficult to control precisely.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: a clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes, comprising a cylinder and a hydraulic cylinder, wherein the hydraulic cylinder is fixedly installed in the middle position of the cylinder by bolts, a limit flange is welded and installed on one side of the cylinder, and a quick clamping mechanism is installed at the output end of the hydraulic cylinder, wherein the quick clamping mechanism is located inside the limit flange;

[0009] The quick clamping mechanism includes a movable disc fixedly installed at the output end of a hydraulic cylinder. Multiple sets of intermediate rods are rotatably mounted on the movable disc. A clamping link is rotatably mounted at one end of each set of intermediate rods. A support block is mounted on the top of the clamping link.

[0010] As a preferred technical solution of this utility model, a connecting flange is fixedly installed on the outer end of the limiting flange, and a telescopic hole is passed through the side of the connecting flange, and the clamping connecting rod moves along the hole wall inside the telescopic hole.

[0011] As a preferred technical solution of this utility model, the outer end of the connecting flange is fixedly installed with a flange pressure plate by multiple sets of bolts, and a baffle is provided at the connection between the connecting flange and the limiting flange. The baffle and the flange pressure plate are respectively located on both sides of the limiting flange.

[0012] As a preferred technical solution of this utility model, the side of the support tube block that contacts the bend tube is provided with anti-slip stripes, and the support tube block and the clamping rod are detachably connected so that the support tube block can be replaced during long-term use.

[0013] As a preferred technical solution of this utility model, multiple sets of reinforcing ribs are fixedly arranged inside the cylinder, and the multiple sets of reinforcing ribs are evenly distributed on the inner wall of the cylinder.

[0014] As a preferred technical solution of this utility model, one end of the cylinder is open, and multiple sets of connecting holes are provided on one side of the cylinder, with multiple sets of bolts installed inside the connecting holes.

[0015] As a preferred technical solution of this utility model, a lighting lamp is fixedly installed on the outer surface of the flange pressure plate, and the lighting lamp is connected to the automatic power supply system of the device.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Through the set quick clamping mechanism, the bent pipe is sleeved on the limiting flange. The hydraulic cylinder can extend and retract through the center hole of the intermediate cylinder. The intermediate rod drives the clamping connecting rod to move up and down in the extension hole, perpendicular to the inner wall of the bent pipe, thus ensuring the effective clamping of the bent pipe. When it is necessary to lower the bent pipe, the hydraulic cylinder retracts, and the intermediate rod and clamping connecting rod move in opposite directions, which can release the bent pipe. It can be flexibly adjusted according to the pipe diameter, bending angle and bending radius of the bent pipe, and can effectively clamp various specifications of bent pipes without frequent replacement of clamping parts, thus improving the versatility and application range of the equipment.

[0018] 2. It can generate sufficient and stable clamping force to ensure that the bend will not shift or shake during the entire process of seamless 3PE anti-corrosion treatment, thus guaranteeing the quality and effect of the anti-corrosion treatment. It can precisely adjust the clamping force according to the bend with different materials and wall thicknesses, preventing both insufficient force that leads to loose clamping and excessive force that damages the bend. Attached Figure Description

[0019] Figure 1A schematic diagram of the clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes provided by this utility model;

[0020] Figure 2 Another structural schematic diagram of the clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes provided by this utility model;

[0021] Figure 3 A side view of the clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes provided by this utility model;

[0022] Figure 4 A cross-sectional view of the clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes provided by this utility model;

[0023] Figure 5 A schematic diagram of the telescopic hole structure of the clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes provided by this utility model.

[0024] The diagram shows: 1. Cylinder; 2. Hydraulic cylinder; 3. Limiting flange; 4. Quick clamping mechanism; 401. Movable disc; 402. Intermediate rod; 403. Clamping rod; 404. Support block; 5. Connecting flange; 6. Telescopic hole; 7. Flange pressure plate; 8. Baffle; 9. Anti-slip stripes; 10. Reinforcing rib; 11. Connecting hole; 12. Bolt; 13. Lighting lamp. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figure 1As shown, this embodiment proposes a clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes, including a cylinder 1 and a hydraulic cylinder 2. The hydraulic cylinder 2 is fixedly installed in the middle position of the cylinder 1 by bolts 12. A limit flange 3 is welded and installed on one side of the cylinder 1. A quick clamping mechanism 4 is installed at the output end of the hydraulic cylinder 2. The quick clamping mechanism 4 is located inside the limit flange 3.

[0030] The quick clamping mechanism 4 includes a movable disc 401 fixedly installed at the output end of the hydraulic cylinder 2. Multiple sets of intermediate rods 402 are rotatably installed on the movable disc 401. A clamping link 403 is rotatably installed at one end of each set of intermediate rods 402. A support block 404 is installed on the top of the clamping link 403.

[0031] like Figure 4 As shown, in a preferred embodiment, based on the above method, a connecting flange 5 is further fixedly installed on the outer end of the limiting flange 3. A telescopic hole 6 extends through the side of the connecting flange 5, and the clamping rod 403 moves along the wall of the telescopic hole 6. During operation, the bent pipe is fitted onto the limiting flange 3, and the hydraulic cylinder 2 can extend and retract through the center hole of the intermediate cylinder 1. The intermediate rod 402 drives the clamping rod 403 to move up and down within the telescopic hole 6, perpendicular to the inner wall of the bent pipe, thus ensuring the effective clamping of the bent pipe. When it is necessary to lower the bent pipe, the hydraulic cylinder 2 retracts, and the intermediate rod 402 and the clamping rod 403 move in opposite directions, thereby releasing the bent pipe.

[0032] like Figures 1-5 As shown, in a preferred embodiment, based on the above method, a flange pressure plate 7 is further fixedly installed on the outer end of the connecting flange 5 by multiple sets of bolts 12. A baffle 8 is provided at the connection between the connecting flange 5 and the limiting flange 3, with the baffle 8 and the flange pressure plate 7 located on opposite sides of the limiting flange 3. During operation, the flange pressure plate 7 seals one end of the connecting flange 5, forming a cavity between the connecting flange 5 and the limiting flange 3 to protect the internal quick-clamping mechanism 4.

[0033] like Figure 5 As shown, in a preferred embodiment, based on the above method, the side of the support block 404 that contacts the bend is provided with anti-slip stripes 9, and the support block 404 and the clamping rod 403 are detachably connected so that the support block 404 can be replaced during long-term use.

[0034] like Figure 2 As shown, in a preferred embodiment, based on the above method, a plurality of reinforcing ribs 10 are further fixedly provided inside the cylinder 1, and the plurality of reinforcing ribs 10 are evenly distributed on the inner wall of the cylinder 1. The plurality of reinforcing ribs 10 mainly increase the overall strength of the cylinder 1 and improve its service life.

[0035] like Figure 4 As shown, in a preferred embodiment, based on the above method, one end of the cylinder 1 is open, and multiple sets of connecting holes 11 are provided on one side of the cylinder 1. Multiple sets of bolts 12 are installed inside the connecting holes 11. The cylinder 1 can be installed on an external actuator by means of the multiple sets of bolts 12 to drive the device to run as a whole and adjust it to a suitable position to clamp the bent pipe.

[0036] like Figure 1 As shown, in a preferred embodiment, based on the above method, a lighting lamp 13 is further fixedly installed on the outer surface of the flange plate 7, and the lighting lamp 13 is connected to the automatic power supply system of the device. During use, the flange plate 7 extends into the inside of the bend, and is clamped to the inner wall of the bend by the clamping rod 403. The lighting lamp 13 ensures the safety of the flange plate 7 extending into the bend in dim environments, preventing contact with the edge of the bend.

[0037] Specifically, in use, the clamping mechanism for the seamless 3PE anti-corrosion treatment of this bent pipe works as follows: Hydraulic cylinder 2 is fixed to the intermediate flange of cylinder 1. The hydraulic rod can extend and retract back and forth through the center hole of the intermediate flange. A movable disc 401 is fixed to the hydraulic rod of hydraulic cylinder 2, allowing hydraulic cylinder 2 to drive the movable disc 401 to move back and forth. Around the movable disc 401, a ring of intermediate rods 402 is installed. Each end of the intermediate rod 402 is rotatably mounted with a clamping connecting rod 403. As the intermediate rods 402 move back and forth, the clamping connecting rods 403 move up and down. A pipe support block 404 is installed on the top of the clamping connecting rod 403. The pipe support block has anti-slip stripes 9 to increase friction. The pipe support block 404 moves with the clamping connecting rod 403, pressing against the inner wall of the bent pipe to prevent relative movement. When it is necessary to lower the bent pipe, hydraulic cylinder 2 retracts, and the intermediate rods 402 and clamping connecting rods 403 move in opposite directions, thus releasing the bent pipe.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes, comprising a cylinder (1) and a hydraulic cylinder (2), characterized in that, The hydraulic cylinder (2) is fixedly installed in the middle position of the cylinder (1) by bolts (12). A limit flange (3) is welded and installed on one side of the cylinder (1). A quick clamping mechanism (4) is installed at the output end of the hydraulic cylinder (2). The quick clamping mechanism (4) is located inside the limit flange (3). The quick clamping mechanism (4) includes a movable disc (401) fixedly installed at the output end of the hydraulic cylinder (2). Multiple sets of intermediate rods (402) are rotatably installed on the movable disc (401). A clamping link (403) is rotatably installed at one end of each set of intermediate rods (402). A support block (404) is installed on the top of the clamping link (403).

2. The clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes according to claim 1, characterized in that, A connecting flange (5) is fixedly installed on the outer end of the limiting flange (3). A telescopic hole (6) is passed through the side of the connecting flange (5). The clamping link (403) moves along the hole wall inside the telescopic hole (6).

3. The clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes according to claim 2, characterized in that, The outer end of the connecting flange (5) is fixedly installed with a flange pressure plate (7) by multiple sets of bolts (12). A baffle (8) is provided at the connection between the connecting flange (5) and the limiting flange (3). The baffle (8) and the flange pressure plate (7) are located on both sides of the limiting flange (3).

4. The clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes according to claim 1, characterized in that, The side of the support block (404) that contacts the bend is provided with anti-slip stripes (9). The support block (404) and the clamping rod (403) are detachably connected so that the support block (404) can be replaced during long-term use.

5. A clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes according to claim 1, characterized in that, The cylinder (1) is fixedly provided with multiple sets of reinforcing ribs (10), which are evenly distributed on the inner wall of the cylinder (1).

6. The clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes according to claim 1, characterized in that, One end of the cylinder (1) is open, and multiple sets of connecting holes (11) are provided on one side of the cylinder (1). Multiple sets of bolts (12) are installed inside the connecting holes (11).

7. A clamping mechanism for seamless 3PE anti-corrosion treatment of bent pipes according to claim 3, characterized in that, A lighting lamp (13) is fixedly installed on the outer surface of the flange pressure plate (7), and the lighting lamp (13) is connected to the automatic power supply system of the device.

Images