Device for adjusting circumferential angle of circular tube

Abstract

The utility model relates to a device for adjusting the circumferential angle of a circular tube, which is characterized in that one side surface of each conical disc is a conical surface which is gradually enlarged from the center to the circumference, the conical discs on two fixed shafts are staggered up and down and the conical surfaces are opposite left and right, and the conical surfaces of the conical discs on the fixed shafts at the same height of two groups of torsion rollers face opposite directions; the outer circumferential surface of the circular pipe abuts against the conical surfaces, opposite to each other up and down and facing the conical discs, of the two sets of twisting rollers, and when the circular pipe is conveyed along the axis, the inclined conical surfaces of the conical discs provide force in the circumferential direction for the circular pipe so that the circular pipe can rotate around the axis. Two pairs of conical discs with inclined conical surfaces are arranged on the circumferential surface of the periphery of the circular pipe, uniform circumferential force is provided for the circular pipe in the axial conveying process of the circular pipe, the circular pipe is made to rotate, in this way, the position of a welding seam of the circular pipe can be adjusted, and after the welding seam of the circular pipe is adjusted to a specific position, the circular pipe is locked to not rotate along the circumference; therefore, the welding seams of the circular pipes are located at the same position, and reprocessing and detection are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of round tube production, in particular to a device for adjusting the circumferential angle of a round tube. Background Art

[0002] The production process of steel pipes is that after the strip steel is curled into a tube, the joint seam on the top of the straight pipe is welded to form a closed welded pipe. The weld is a continuous straight line along the axial direction of the circular steel pipe. The quality of this weld of the steel pipe is related to the quality of the entire steel pipe. When the steel pipe is processed again, such as pressed into a square tube, it is necessary to pay attention to the position of the weld. During the inspection of the steel pipe, the weld also needs to be paid special attention. Therefore, the position of the weld needs to be maintained at a specific angle, such as on the top surface, but the circular steel pipe is easy to roll, and the position of the weld is in all directions after stacking, and needs to be adjusted again. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a device for adjusting the circumferential angle of a round tube, so as to solve the problem of rotating the round tube and making the positions of the welds on the round tube uniform.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A device for adjusting the circumferential angle of a circular tube comprises two groups of adjacent twisting rollers, wherein the twisting rollers comprise two upper and lower parallel fixed shafts, and conical disks are rotatably sleeved on the two fixed shafts, the same side of the two fixed shafts is fixed on the side surface of a stand, and the bottom of the stand is horizontally movably mounted on a base, and one side surface of the conical disk presents a gradually expanding conical surface from the center to the circumference, the conical disks on the two fixed shafts are staggered up and down and the conical surfaces are opposite to each other left and right, and the conical surfaces of the conical disks on the fixed shafts of the two groups of twisting rollers at the same height face in opposite directions, and a circular tube passes vertically between the two fixed shafts arranged up and down of each twisting roller, and the outer circumferential surface of the circular tube abuts against the conical surfaces of the conical disks of the two groups of twisting rollers that face each other up and down and face different directions, and when the circular tube is transported along the axis, the inclined conical surfaces of each conical disk provide force along the circumferential direction to the circular tube, so that the circular tube rotates around the axis.

[0006] As a preferred embodiment, the inclination angle of the conical surface of the conical disk is - degrees with the horizontal.

[0007] As a preferred embodiment, two screws are arranged parallel to the fixed axis on the base, nuts are arranged at the bottom of the two stands respectively, and the nuts are threadedly sleeved on the corresponding screws. When the screw rotates, the stands translate along the axial direction of the screw.

[0008] As a preferred embodiment, the inner circumference of the conical disk is rotatably sleeved on the fixed shaft via a roller bearing, and thrust bearings are also sleeved on the outer end surfaces on both sides of the fixed shaft close to the conical disk.

[0009] The beneficial effect of the utility model is that two pairs of conical disks with inclined conical surfaces are arranged on the circumferential surfaces around the round tube, and during the axial transportation of the round tube, uniform circumferential force is provided to the round tube to make the round tube rotate, so that the position of the weld of the round tube can be adjusted, and after the weld of the round tube is adjusted to a specific position, the round tube is locked and will not rotate along the circumference, so that the weld of the round tube is in the same position, which is convenient for re-processing and testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0011] Figure 1 It is a top view of the utility model;

[0012] Figure 2 for Figure 1 Left view of

[0013] Figure 3 for Figure 1 Cross-sectional view along AA direction;

[0014] Figure 1~Figure 3 Explanation of the reference numerals in the accompanying drawings: 1. base; 2. torsion roller; 3. screw; 4. nut; 21. conical disk; 22. fixed shaft; 23. stand; 24. roller bearing; 25. thrust bearing; 5. round tube. DETAILED DESCRIPTION

[0015] The specific implementation scheme of the utility model is described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1~Figure 3 The device for adjusting the circumferential angle of a circular tube shown in the figure comprises two groups of adjacent twisting rollers 2, wherein the twisting rollers 2 comprise two fixed shafts 22 which are parallel to each other in the upper and lower parts, and conical disks 21 which are rotatably sleeved on the two fixed shafts 22 respectively, and the same side of the two fixed shafts 22 is fixed on the side surface of a stand 23, and the bottom of the stand 23 is horizontally movably mounted on the base 1, and one side surface of the conical disk 21 presents a gradually expanding conical surface from the center to the circumference, and the conical disks 21 on the two fixed shafts 22 are staggered up and down and the conical surfaces are opposite to each other in the left and right parts, and the conical surfaces of the conical disks 21 on the fixed shafts 22 of the two groups of twisting rollers 2 at the same height face in opposite directions, and a circular tube 5 passes vertically between the two fixed shafts 22 arranged up and down of each twisting roller 2, and the outer circumferential surface of the circular tube 5 abuts against the conical surfaces of the conical disks 21 of the two groups of twisting rollers 2 which face each other in different directions in the upper and lower parts, and when the circular tube 5 is transported along the axis, the inclined conical surfaces of each conical disk 21 provide force in the circumferential direction to the circular tube 5, so that the circular tube 5 rotates around the axis.

[0017] Specifically, two groups of four conical disks 21 are provided, two conical disks 21 in one group are relatively distributed on both sides of the circumference of the upper right inclined radial direction of the circular tube 5, and two conical disks 21 on the other side are relatively distributed on both sides of the circumference of the upper left inclined radial direction of the circular tube 5, so that the circumference of the circular tube 5 is evenly stressed. When the circular tube 5 is transported forward by traction, the friction between the circular tube 5 and the conical disks 21 drives the conical disks 21 to rotate. When the inclined conical disks 21 rotate, they provide force along the circumference of the circular tube 5 to rotate the circular tube 5. When the circular tube 5 is adjusted to a suitable position, the circular tube 5 will be locked and cannot rotate along the circumference.

[0018] The conical surface of the conical disk 21 has an inclination angle of 110 to 130 degrees with respect to the horizontal, which makes the speed and distance of the conical disk 21 to rotate moderate.

[0019] like Figure 3 The base 1 is provided with two screws 3 parallel to the fixed shaft 22, and the bottoms of the two stands 23 are provided with nuts 4, which are threadedly sleeved on the corresponding screws 3. When the screws 3 rotate, the stands 23 translate along the axial direction of the screws 3. By adjusting the distance between the two twisting rollers 2 along the axial direction of the fixed shaft 22, the strength of the four conical disks 21 to clamp the round tube 5 can be adjusted.

[0020] like Figure 3 The inner circumference of the conical disk 21 is rotatably sleeved on the fixed shaft 22 through roller bearings 24, and thrust bearings 25 are also sleeved on the outer end surfaces of both sides of the fixed shaft 22 that are close to the conical disk 21. In order to make the conical disk 21 rotate smoothly and the conveying process of the round tube 5 smooth, the conical disk 21 is rotatably sleeved on the fixed shaft 22 through roller bearings 24 at both ends of the inner part. The inclined conical surface of the conical disk 21 makes the conical disk 21 also subject to axial thrust, so thrust bearings 25 are arranged on both end surfaces of the conical disk 21 to ensure the smooth operation of the conical disk 21.

[0021] The working process of the utility model is as follows:

[0022] As shown in Figures 1-3, first, the round tube 5 is passed through the opposite spaces between the four conical disks 21, then the round tube 5 is pulled and transported axially, and finally, the round tube 5 is rotated by the friction force of the surrounding conical disks 21.

[0023] The above embodiments are only illustrative of the principles and effects of the invention of the utility model, as well as some embodiments of its application, and are not intended to limit the invention of the utility model. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A device for adjusting the circumferential angle of a circular tube, characterized in that: The invention comprises two groups of adjacent twisting rollers (2), wherein the twisting rollers (2) comprise two upper and lower parallel fixed shafts (22), and conical disks (21) are rotatably sleeved on the two fixed shafts (22), the same side of the two fixed shafts (22) is fixed on the side of a stand (23), the bottom of the stand (23) is horizontally movably mounted on a base (1), one side of the conical disk (21) is a gradually expanding conical surface from the center to the circumference, the conical disks (21) on the two fixed shafts (22) are staggered up and down, and the conical surfaces are left and right. Relatively speaking, the conical surfaces of the conical disks (21) on the fixed shafts (22) at the same height of the two groups of twisting rollers (2) face in opposite directions. A round tube (5) passes vertically between the two fixed shafts (22) arranged vertically on each twisting roller (2). The outer circumferential surface of the round tube (5) abuts against the conical surfaces of the conical disks (21) on the two groups of twisting rollers (2) that face each other vertically and face different directions. When the round tube (5) is transported along the axis, the inclined conical surfaces of the conical disks (21) provide the round tube (5) with a force in the circumferential direction, so that the round tube (5) rotates around the axis.

2. The device for adjusting the circumferential angle of a circular tube according to claim 1, characterized in that: The conical surface of the conical disk (21) has an inclination angle of 110 degrees to 130 degrees with respect to the horizontal.

3. The device for adjusting the circumferential angle of a circular tube according to claim 1, characterized in that: Two screw rods (3) are arranged on the base (1) parallel to the fixed shaft (22), and nuts (4) are arranged at the bottoms of the two upright seats (23), respectively. The nuts (4) are threadedly sleeved on the corresponding screw rods (3), and when the screw rod (3) rotates, the upright seats (23) translate along the axial direction of the screw rod (3).

4. The device for adjusting the circumferential angle of a circular tube according to claim 1, characterized in that: The inner circumferential surface of the conical disk (21) is rotatably sleeved on the fixed shaft (22) via a roller bearing (24), and thrust bearings (25) are sleeved on both side outer end surfaces of the fixed shaft (22) that are in close contact with the conical disk (21).

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