Lifting loading turntable for radiographic inspection of rotary workpiece

Abstract

The invention discloses a lifting load-carrying turntable for rotary workpiece radiographic inspection, and relates to the technical field of petroleum equipment detection.The lifting load-carrying turntable comprises a lifting frame with the height of the upper surface adjustable, a lower turntable is fixedly arranged on the upper portion of the lifting frame, and an upper turntable is rotationally arranged on the upper portion of the lower turntable; the middle of the upper rotary table is rotationally connected with the middle of the lower rotary table through a universal bearing, two lifting bolts for rotation are symmetrically arranged on the upper rotary table, and two lifting bolts for hoisting are symmetrically arranged between the upper rotary table and the lower rotary table. The two end faces of the upper rotating disc and the lower rotating disc are connected through the universal bearings, the universal bearings are connected with the upper rotating disc and the lower rotating disc through the corresponding bolts respectively, the angle of the rotating body workpiece can be adjusted conveniently, and therefore X-ray detection of all angles is completed. In addition, the rotary table structure is matched with a height-adjustable lifting frame for common use, the rotary table structure can be more effectively suitable for X-ray detection of rotary body workpieces of various sizes and types, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum equipment detection, and in particular to a lifting load turntable used for ray detection of rotating workpieces. Background Art

[0002] In the manufacturing process of oil equipment such as oil drilling wellheads, manifold valves, etc., the characteristic butt ring welds of such workpieces are rotating bodies with an outer diameter range of φ80mm to φ500mm. Some workpieces are not in the shape of rotating bodies except for the welds. Each butt ring weld needs to be 100% X-ray inspected. When the number of negatives is calculated, it is necessary to perform X-ray inspection on welds at different angles. However, at present, when inspecting, the workpiece is placed on a fixed structure support platform, and it is often faced with the problem of how to place the workpiece at different angles. In addition, the height of the workpiece cannot be adjusted, making it difficult to perform X-ray inspection on welds at different heights. Therefore, a lifting load turntable for X-ray inspection of rotating workpieces is developed. Summary of the invention

[0003] The purpose of the present invention is to provide a lifting load turntable for X-ray detection of rotating workpieces, so as to solve the technical problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention discloses a lifting load turntable for X-ray detection of rotating workpieces, comprising a lifting frame with an adjustable upper surface height, a lower turntable fixedly arranged on the upper part of the lifting frame, an upper turntable rotatably arranged on the upper part of the lower turntable, the middle of the upper turntable and the lower turntable are rotatably connected through a universal bearing, two rotation eye screws are symmetrically arranged on the upper turntable, and two lifting eye screws are symmetrically arranged between the upper turntable and the lower turntable.

[0005] Furthermore, the lifting frame includes an upper beam and a lower beam of the lifting frame, the upper portion of the upper beam of the lifting frame is fixedly connected to the lower turntable, the lower portion of the upper beam of the lifting frame is symmetrically fixed with two upper lifting beams, the upper portion of the lower beam of the lifting frame is symmetrically fixed with two lower lifting beams, each of the upper lifting beams and each of the lower lifting beams is provided with a plurality of through holes evenly spaced in the vertical direction, and the upper lifting beam and the lower lifting beam at the same end are connected by a support pin penetrating the through holes.

[0006] Furthermore, the universal bearing includes a universal bearing upper cover plate and a universal bearing lower cover plate which are rotatably connected, the universal bearing upper cover plate is fixedly connected to the upper turntable via upper connecting bolts, and the universal bearing lower cover plate is fixedly connected to the lower turntable via lower connecting bolts.

[0007] Furthermore, an upper cover plate annular groove is provided at the lower part of the universal bearing upper cover plate, and a lower cover plate annular groove is provided at the upper part of the universal bearing lower cover plate, and a plurality of first steel balls are evenly rotatedly arranged between the upper cover plate annular groove and the lower cover plate annular groove.

[0008] Furthermore, the universal bearing also includes a positioning bolt, which penetrates through a through hole opened in the middle of the upper turntable, the universal bearing upper cover plate, and the universal bearing lower cover plate and is threadedly connected to the lower turntable.

[0009] Furthermore, an upper turntable annular groove is provided at the bottom of the upper turntable, a lower turntable annular groove is provided at the top of the lower turntable, and a plurality of second steel balls are uniformly rotated along the circumferential direction between the upper turntable annular groove and the lower turntable annular groove.

[0010] Furthermore, the rotating eye screw is threadedly connected to the upper turntable, and the lifting eye screw passes through the through hole on the upper turntable and is threadedly connected to the lower turntable.

[0011] Furthermore, the upper surface of the upper turntable is spray-welded with wear-resistant hard alloy.

[0012] Compared with the prior art, the beneficial technical effects of the present invention are: In the present invention, the two end surfaces of the upper turntable and the lower turntable are connected by universal bearings, and the universal bearings are respectively connected to the upper and lower turntables by corresponding bolts, and steel balls are installed in the inner cavity. The universal bearing adopts a threaded connection structure design, which can make the upper and lower parts fit more tightly after installation, and can rotate freely at the same time, so as to facilitate the adjustment of the angle of the rotating workpiece, thereby completing the X-ray detection at various angles. In addition, the turntable structure of the present invention is used together with the height-adjustable lifting frame, which can be more effectively applied to X-ray detection of rotating workpieces of various sizes and types, and effectively improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the universal bearing connection structure of the present invention; Figure 3 It is a schematic diagram of the connection between the upper turntable and the lower turntable of the present invention; Figure 4 It is a schematic diagram of the structure of the rotating eye screw of the present invention; Figure 5 It is a structural schematic diagram of the lifting frame of the present invention; Figure 6 It is a schematic diagram of the structure of the lifting eye screw for lifting of the present invention; Description of the reference numerals: 1. lower turntable; 2. upper turntable; 3. eye screw for rotation; 4. eye screw for lifting; 5. upper beam of lifting frame; 6. lower beam of lifting frame; 7. upper lifting beam; 8. lower lifting beam; 9. Universal bearing upper cover plate; 10, universal bearing lower cover plate; 11, upper connecting bolts; 12, lower connecting bolts; 13, upper cover plate annular groove; 14, lower cover plate annular groove; 15, first steel ball; 16, positioning bolt; 17, upper turntable annular groove; 18, lower turntable ring; 19, second steel ball. DETAILED DESCRIPTION

[0015] like Figure 1-Figure 6 As shown, a lifting load turntable for radiographic inspection of rotating workpieces includes a lifting frame with an adjustable upper surface height, a lower turntable 1 is fixedly arranged on the upper part of the lifting frame by welding, an upper turntable 2 is rotatably mounted on the upper part of the lower turntable 1, and the middle of the upper turntable 2 and the lower turntable 1 is rotatably connected by a universal bearing. Two rotation eye screws 3 are symmetrically mounted on the upper turntable 2, and two lifting eye screws 4 are symmetrically arranged between the upper turntable 2 and the lower turntable 1.

[0016] The lifting frame includes an upper lifting frame beam 5 and a lower lifting frame beam 6. The upper portion of the upper lifting frame beam 5 is fixedly connected to the bottom of the lower turntable 1 by welding, and two upper lifting beams 7 are symmetrically fixedly welded to the lower portion of the upper lifting frame beam 5. Two lower lifting beams 8 are symmetrically fixedly welded to the upper portion of the lower lifting frame beam 6. A plurality of through holes are evenly spaced in the vertical direction on each of the upper lifting beams 7 and each of the lower lifting beams 8. The upper lifting beam 7 and the lower lifting beam 8 at the same end are connected by a support pin penetrating the through holes.

[0017] The universal bearing includes a universal bearing upper cover plate 9 and a universal bearing lower cover plate 10 which are rotatably connected. The universal bearing upper cover plate 9 is fixedly connected to the upper turntable 2 via upper connecting bolts 11, and the universal bearing lower cover plate 10 is fixedly connected to the lower turntable 1 via lower connecting bolts 12.

[0018] An upper cover plate annular groove 13 is formed at the lower part of the universal bearing upper cover plate 9, and a lower cover plate annular groove 14 is formed at the upper part of the universal bearing lower cover plate 10. A plurality of first steel balls 15 are evenly and rotatably arranged between the upper cover plate annular groove 13 and the lower cover plate annular groove 14.

[0019] In addition, the universal bearing further comprises a positioning bolt 16 , which penetrates through holes formed in the middle of the upper turntable 2 , the universal bearing upper cover plate 9 , and the universal bearing lower cover plate 10 and is threadedly connected to the lower turntable 1 .

[0020] An upper turntable annular groove 17 is provided at the bottom of the upper turntable 2, and a lower turntable annular groove 18 is provided at the top of the lower turntable 1. A plurality of second steel balls 19 are uniformly installed in a circumferential direction between the upper turntable annular groove 17 and the lower turntable annular groove 18.

[0021] In the present invention, the two end surfaces of the upper turntable and the lower turntable are connected by universal bearings, and the universal bearings are respectively connected to the upper and lower turntables by corresponding bolts, and steel balls are installed in the inner cavity. The universal bearings adopt a threaded connection structure design, which can make the upper and lower parts fit more tightly after installation, and can rotate freely at the same time, so as to facilitate the adjustment of the angle of the rotating workpiece, thereby completing the X-ray detection of various angles. In addition, the turntable structure of the present invention is used together with the height-adjustable lifting frame, which can be more effectively applied to X-ray detection of rotating workpieces of various sizes and types.

[0022] In this embodiment, the rotating eye screw 4 is threadedly connected to the upper turntable 2, and the rotation of the heavy object on the upper turntable can be achieved through an external lever.

[0023] The lifting eye screw 5 passes through the through hole on the upper turntable 2 and is threadedly connected to the lower turntable 1. The eye screw has good load bearing capacity and is easy to disassemble and assemble, which is convenient for online maintenance. The turntable structure can be hoisted according to the specific workpiece size and the height can be adjusted to ensure that the weld part of the inspected workpiece is perpendicular to the position of the X-ray machine outlet, so as to ensure the detection rate of X-ray detection and reduce the occurrence of missed detection of transverse welding defects.

[0024] The upper surface of the upper turntable 2 is spray-welded with wear-resistant hard alloy, and the material of the spray-welded layer is nickel-based alloy, and the hardness is controlled between HRC55-HRC60. The spray-welded thickness is 1mm-1.5mm, which can achieve the best use effect. It is suitable for wear-resistant and impact-resistant working conditions, reduces the risk of the turntable surface being damaged, and protects the flatness of the plane.

[0025] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A lifting load turntable for X-ray detection of rotating workpieces, characterized in that: It comprises a lifting frame with an adjustable upper surface height, a lower turntable is fixedly arranged on the upper part of the lifting frame, an upper turntable is rotatably arranged on the upper part of the lower turntable, the middle of the upper turntable and the lower turntable are rotatably connected through a universal bearing, two rotation eye screws are symmetrically arranged on the upper turntable, and two lifting eye screws are symmetrically arranged between the upper turntable and the lower turntable.

2. The lifting and loading turntable for X-ray detection of rotating workpieces according to claim 1 is characterized in that: The lifting frame includes an upper beam and a lower beam of the lifting frame. The upper portion of the upper beam of the lifting frame is fixedly connected to the lower turntable, and two upper lifting beams are symmetrically fixedly arranged on the lower portion of the upper beam of the lifting frame. Two lower lifting beams are symmetrically fixedly arranged on the upper portion of the lower beam of the lifting frame. A plurality of through holes are evenly spaced in the vertical direction on each of the upper lifting beams and each of the lower lifting beams, and the upper lifting beam and the lower lifting beam at the same end are connected by a supporting pin penetrating the through holes.

3. The lifting and loading turntable for X-ray detection of rotating workpieces according to claim 1 is characterized in that: The universal bearing comprises a rotatably connected upper cover plate of the universal bearing and a lower cover plate of the universal bearing, wherein the upper cover plate of the universal bearing is fixedly connected to the upper turntable via upper connecting bolts, and the lower cover plate of the universal bearing is fixedly connected to the lower turntable via lower connecting bolts.

4. The lifting and loading turntable for X-ray detection of rotating workpieces according to claim 3 is characterized in that: An upper cover plate annular groove is provided at the lower part of the universal bearing upper cover plate, and a lower cover plate annular groove is provided at the upper part of the universal bearing lower cover plate. A plurality of first steel balls are evenly and rotatably arranged between the upper cover plate annular groove and the lower cover plate annular groove.

5. The lifting and loading turntable for X-ray detection of rotating workpieces according to claim 4 is characterized in that: The universal bearing also includes a positioning bolt, which penetrates through a through hole in the middle of the upper turntable, the universal bearing upper cover plate, and the universal bearing lower cover plate and is threadedly connected to the lower turntable.

6. The lifting and loading turntable for X-ray detection of rotating workpieces according to claim 1 is characterized in that: An upper turntable annular groove is provided at the bottom of the upper turntable, a lower turntable annular groove is provided at the top of the lower turntable, and a plurality of second steel balls are uniformly rotated along the circumferential direction between the upper turntable annular groove and the lower turntable annular groove.

7. The lifting and loading turntable for X-ray detection of rotating workpieces according to claim 1 is characterized in that: The rotating eye screw is threadedly connected to the upper turntable, and the lifting eye screw is threadedly connected to the lower turntable after passing through the through hole on the upper turntable.

8. The lifting and loading turntable for X-ray inspection of rotating workpieces according to claim 1 is characterized in that: The upper surface of the upper turntable is spray-welded with wear-resistant hard alloy.

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