Large-diameter thick-wall seamless steel pipe machining device

Abstract

The utility model discloses a large-diameter thick-wall seamless steel pipe processing device, belongs to the technical field of steel pipe processing equipment, and solves the problem that if a crack defect is as many as a circle around a steel pipe, the efficiency of sequentially polishing is low. Comprising a driving roller, a driven roller, a pipe connecting part horizontally and slidably connected between the driving roller and the driven roller, and a grinding belt. The two ends of the polishing belt can be fixed to the driving roller and the driven roller, and the driving roller and the driven roller repeatedly move back and forth, so that the driving roller and the driven roller can drive the polishing belt wound and wrapped on the outer side of a steel pipe to be machined to repeatedly polish the whole circle of the steel pipe. Therefore, the steel pipe can be fully polished, the situation that the crack is uneven is avoided, and meanwhile, the other positions of the steel pipe can still be polished only by adjusting the position of the polishing belt in the length direction of the driving driving roller and the driven driving roller.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe processing equipment, in particular to a large-diameter thick-wall seamless steel pipe processing device. Background Art

[0002] Seamless steel pipes can be divided into hot-rolled, cold-rolled, cold-drawn, extruded and jacking pipes according to different manufacturing processes. Seamless steel pipes can be divided into two categories: thick-walled and thin-walled according to the required uses.

[0003] The seamless steel pipe in the prior art can be obtained as a complete seamless steel pipe after the steps of heating, rolling, finishing and testing. However, in the production process, if there are defects and cracks on the surface of the seamless steel pipe, it is usually necessary to manually grind it with a grinding machine. If the crack defect is as much as one circle around the steel pipe, the efficiency of the subsequent grinding process is low.

[0004] Therefore, a large-diameter thick-wall seamless steel pipe processing device is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a large-diameter thick-wall seamless steel pipe processing device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A large-diameter thick-walled seamless steel pipe processing device comprises an active driving roller, a driven driving roller, a pipe connecting portion horizontally slidably connected between the active driving roller and the driven driving roller, and a grinding belt, wherein the pipe connecting portion is used to fix the steel pipe to be processed, and the two ends of the grinding belt are detachably connected to the active driving roller and the driven driving roller, respectively, and the grinding belt is used to be wound around the outside of the steel pipe, and the active driving roller and the driven driving roller rotate back and forth synchronously.

[0008] Preferably, it also includes a connecting frame and two side plates fixedly connected to the connecting frame, the active driving roller and the driven driving roller are rotatably connected between the two side plates, and the pipe connecting part is slidably connected to the side plates.

[0009] Preferably, a horizontally arranged slide groove is provided on the side plate, a slide seat is slidably connected in the slide groove, the tube connection portion is arranged on the slide seat, and a threaded hole penetrating into the slide groove is provided at one end of the side plate, a threaded rod rotatably connected to the slide seat is threadedly connected in the threaded hole.

[0010] Preferably, one end of the threaded rod away from the sliding seat is fixedly connected to a connecting column, and a plug hole for passing through the connecting column is opened on the peripheral wall of the connecting column, and the plug hole is used to insert the lever arm.

[0011] Preferably, a horizontally arranged threaded through hole is formed on the slide seat, and the pipe connecting portion comprises a rotating stud threadedly connected to the threaded through hole, and a rubber disc sleeved on the outer side of the rotating thread.

[0012] Preferably, one end of the driven driving roller and the active driving roller passes through the side plate and is coaxially fixedly connected with a driving shaft and a driven shaft respectively, and a driving sprocket and a driven sprocket are fixedly connected to the driving shaft and the driven shaft respectively, and the driving sprocket and the driven sprocket are connected by a chain transmission.

[0013] Preferably, the driving shaft is also fixedly connected to a driven wheel, and further comprises a driving motor and a driving wheel fixedly connected to an output shaft of the driving motor, wherein the driving wheel and the driven wheel are connected via a transmission belt.

[0014] The utility model has the following beneficial effects:

[0015] The utility model realizes that the two ends of the grinding belt are installed on an active driving roller and a driven driving roller, and continuous reciprocating motion is utilized, which is performed by the cooperation of the two driving rollers, thereby driving the grinding belt wrapped around the outer surface of the steel pipe to be processed to perform a cyclical grinding operation along the outer circle of the steel pipe. This process strictly grinds the entire outer surface of the steel pipe to ensure the flatness and smoothness of the surface, especially the defective cracks of the steel pipe, and effectively avoids the unevenness caused by the cracks. In addition, in order to meet the grinding requirements of different parts of the steel pipe, the utility model only needs to adjust the position of the grinding belt along the length direction of the active driving roller and the driven driving roller, so as to easily change the grinding area, so that the entire steel pipe surface can be evenly and thoroughly processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0019] Figure 4 It is a side view of the active driving roller, the driven driving roller, and the grinding belt in the utility model.

[0020] 1. Connecting frame; 2. Side plate; 3. Driven driving roller; 32. Driven sprocket; 331. Driven shaft; 4. Active driving roller; 41. Active shaft; 42. Active sprocket; 5. Sliding seat; 6. Threaded rod; 61. Connecting column; 62. Socket; 7. Slide groove; 8. Grinding belt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Large diameter thick wall seamless steel pipe processing equipment, such as Figure 1 As shown, it includes a connecting frame 1, two side plates 2 fixedly connected to the connecting frame 1, an active driving roller 4, a driven driving roller 3, a pipe connecting portion horizontally slidably connected between the active driving roller 4 and the driven driving roller 3, and a grinding belt 8.

[0023] like Figure 2 As shown, the active driving roller 4 and the driven driving roller 3 are rotatably connected between the two side plates 2, one end of the driven driving roller 3 and the active driving roller 4 penetrates the side plate 2 and is coaxially fixedly connected with a driving shaft 41 and a driven shaft 331 respectively, the driving shaft 41 and the driven shaft 331 are respectively fixedly connected with a driving sprocket 42 and a driven sprocket 32, the driving sprocket 42 and the driven sprocket 32 ​​are connected through a chain transmission, the driving shaft 41 is also fixedly connected with a driven wheel, and also includes a driving motor and a driving wheel fixedly connected to the output shaft of the driving motor, and the driving wheel and the driven wheel are connected through a transmission belt transmission.

[0024] And if Figure 2 and 3 As shown, the pipe connection part is slidably connected on the side plate 2, and the pipe connection part is used to fix the steel pipe to be processed. Specifically, a horizontally arranged slide groove 7 is opened on the side plate 2, and a slide seat 5 is slidably connected in the slide groove 7. The cross section of the slide seat 5 is H-shaped, and there is a protrusion embedded in the slide seat 5 in the slide groove 7, and a threaded hole penetrating into the slide groove 7 is opened at one end of the side plate 2. A threaded rod 6 rotatably connected to the slide seat 5 is threaded in the threaded hole, and a connecting column 61 is fixedly connected to the end of the threaded rod 6 away from the slide seat 5. A socket 62 for penetrating the connecting column 61 is opened on the peripheral wall, and the socket 62 is used to insert the force arm rod.

[0025] The pipe connection part is arranged on the slide seat 5, and a threaded through hole arranged horizontally is opened on the slide seat 5. The pipe connection part comprises a rotating stud threadedly connected in the threaded through hole, and a rubber disc sleeved on the outer side of the rotating thread.

[0026] like Figure 4 As shown, the two ends of the grinding belt 8 of the sanding belt are detachably connected to the active driving roller 4 and the driven driving roller 3 respectively, and the detachable connection method is that the outer peripheral walls of the active driving roller 4 and the driven driving roller 3 are provided with radially recessed V-shaped clamping grooves, and the two ends of the sanding belt are embedded in the clamping grooves and clamped, and the grinding belt 8 is used to be wound around the outside of the steel pipe, and the active driving roller 4 and the driven driving roller 3 rotate back and forth synchronously.

[0027] When people need to grind the steel pipe that has just been inspected and cracks are found, they only need to adjust the distance between the steel pipe and the connecting frame 1 according to the gear of the steel pipe. When adjusting, they only need to insert the force arm rod, and then rotate the threaded rod 6 to sink into the slide groove 7 under the guidance of the threaded hole, thereby pushing the slide seat 5 to move in the slide groove 7, and then put the steel pipe between the slide seats 5 on both sides, and the threaded column is also rotated to adjust its length between the slide seats 5 on both sides to adapt to the length of the steel pipe, and then put a rubber disc matching the inner diameter of the steel pipe on the threaded column, so that it can follow the threaded column to be inserted into the steel pipe to complete the fixation of the steel pipe.

[0028] Next, the grinding belt 8 is wound around the outer side of the steel pipe position to be ground, and the two ends of the grinding belt 8 are respectively embedded in the clamping grooves on the active driving roller 4 and the driven driving roller 3 to complete the positioning of the grinding belt 8.

[0029] Subsequently, the driving motor is operated to drive the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the transmission belt. When the driven wheel rotates, it will drive the driving shaft 41 to rotate. When the driving shaft 41 rotates, it will drive the driving sprocket 42 and the driven sprocket 32 ​​through the chain, so that the active driving roller 4 and the driven driving roller 3 can rotate synchronously, one is winding and the other is unwinding, and vice versa, thereby driving the grinding belt 8 to repeatedly grind the position of the crack of the steel pipe.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Large diameter thick wall seamless steel pipe processing device, characterized in that: The invention comprises an active driving roller (4), a driven driving roller (3), a tube connecting portion horizontally slidably connected between the active driving roller (4) and the driven driving roller (3), and a grinding belt (8), wherein the tube connecting portion is used to fix the steel pipe to be processed, and the two ends of the grinding belt (8) are respectively detachably connected to the active driving roller (4) and the driven driving roller (3), and the grinding belt (8) is used to be wound around the outer side of the steel pipe, and the active driving roller (4) and the driven driving roller (3) rotate back and forth synchronously.

2. The large-diameter thick-walled seamless steel pipe processing device according to claim 1 is characterized in that: It also comprises a connecting frame (1), two side plates (2) fixedly connected to the connecting frame (1), the active driving roller (4) and the driven driving roller (3) are rotatably connected between the two side plates (2), and the pipe connecting part is slidably connected on the side plates (2).

3. The large-diameter thick-walled seamless steel pipe processing device according to claim 2 is characterized in that: The side plate (2) is provided with a horizontally arranged slide groove (7), a slide seat (5) is slidably connected in the slide groove (7), the pipe connecting portion is arranged on the slide seat (5), and one end of the side plate (2) is provided with a threaded hole penetrating into the slide groove (7), a threaded rod (6) rotatably connected to the slide seat (5) is threadedly connected in the threaded hole.

4. The large-diameter thick-walled seamless steel pipe processing device according to claim 3 is characterized in that: One end of the threaded rod (6) away from the slide seat (5) is fixedly connected to a connecting column (61), and a plug hole (62) penetrating the connecting column (61) is provided on a peripheral wall thereof, and a lever arm rod is inserted into the plug hole (62).

5. The large-diameter thick-walled seamless steel pipe processing device according to claim 3 is characterized in that: The sliding seat (5) is provided with a horizontally arranged threaded through hole, and the pipe connecting portion comprises a rotating stud threadedly connected in the threaded through hole, and a rubber disc sleeved on the outer side of the rotating thread.

6. The large-diameter thick-walled seamless steel pipe processing device according to claim 2, characterized in that: One end of the driven driving roller (3) and the driving driving roller (4) passes through the side plate (2) and is coaxially fixedly connected to a driving shaft (41) and a driven shaft (331), respectively; a driving sprocket (42) and a driven sprocket (32) are fixedly connected to the driving shaft (41) and the driven shaft (331), respectively; and the driving sprocket (42) and the driven sprocket (32) are connected via a chain transmission.

7. The large-diameter thick-walled seamless steel pipe processing device according to claim 6, characterized in that: The driving shaft (41) is also fixedly connected to a driven wheel, and further comprises a driving motor and a driving wheel fixedly connected to an output shaft of the driving motor. The driving wheel and the driven wheel are connected via a transmission belt.

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