Welding seam detection supporting device

Abstract

The utility model discloses a welding seam detection supporting device, and relates to the field of supporting devices for pressure vessel welding seam detection, the welding seam detection supporting device comprises two end plates, T-shaped grooves are arranged in the two end plates, two upper sliding blocks are symmetrically connected in the transverse groove parts of the T-shaped grooves in a sliding mode, rotating shafts are rotatably installed on the inner walls of the upper sliding blocks, and the rotating shafts are connected with the T-shaped grooves in a sliding mode. A lower sliding block is slidably connected into the vertical groove part of the T-shaped groove, the inner wall of the synchronizing shaft is rotatably provided with the synchronizing shaft, transmission mechanisms are installed at the two ends of the rotating shaft and the two ends of the synchronizing shaft, and a rotating wheel is in interference fit with the position, between the two end plates, of the outer wall of the rotating shaft; a guide mechanism connected with the lower sliding block is installed on the outer side of the end plate. Through the arrangement of the T-shaped groove, the transmission mechanism, the bidirectional screw rod and the moving block, the pressure container can be driven to rotate, the device does not need to be held manually to rotate, and therefore the convenience of welding seam detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of support devices for pressure vessel weld inspection, specifically a weld inspection support device. Background Technology

[0002] After welding, large pressure vessels (such as reactors) need to be inspected. Ultrasonic testing is generally used. However, since the weld is a ring structure, workers need to use handheld ultrasonic weld detectors to inspect various parts of the weld, which is inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a weld inspection support device in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a weld inspection support device, comprising two end plates, each end plate having a T-slot inside. Two upper sliders are symmetrically slidably connected inside the horizontal groove of the T-slot. A rotating shaft is rotatably mounted on the inner wall of each upper slider. A lower slider is slidably connected inside the vertical groove of the T-slot. A synchronous shaft is rotatably mounted on the inner wall of each lower slider. Transmission mechanisms are installed at both ends of the rotating shaft and the synchronous shaft. A rotating wheel is interference-fitted onto the outer wall of the rotating shaft between the two end plates. A guide mechanism connected to the lower slider is installed on the outer side of each end plate.

[0005] As a further embodiment of this utility model: the transmission mechanism includes pulleys installed at both ends of the rotating shaft and the synchronous shaft, three pulleys located on the same vertical plane are connected by a transmission belt, a sliding bracket is slidably installed at one end of one end plate, a rotary motor is installed on the sliding bracket, and the output end of the rotary motor is coaxially connected to a pulley at one end of one of the rotating shafts.

[0006] As a further embodiment of this utility model: a limiting wheel is rotatably mounted on one end of the two end plates that are far apart from each other, which supports the transmission belt. The two limiting wheels are used to ensure that the transmission belt and the pulley at one end of the synchronous shaft satisfy a transmission wrap angle greater than 120 degrees.

[0007] As a further embodiment of this utility model: the guiding mechanism includes four fixed ears, which are arranged in a rectangular shape. A guide rod is fixedly connected between the upper and lower fixed ears. The two ends of the lower slider are formed with outwardly protruding sliding ears. The sliding ears are slidably connected to the outer wall of the guide rod. A compression spring is fixedly connected between the bottom end of the guide rod and the fixed ear located below. The compression spring is sleeved on the outer wall of the guide rod.

[0008] As a further embodiment of this utility model: one end of one of the end plates is provided with a sliding groove for the sliding bracket to slide, and the vertical cross-section of the sliding bracket and the vertical cross-section of the sliding end of the sliding groove are both convex.

[0009] As a further embodiment of this utility model: a movable block is rotatably mounted on the end face of the two pulleys at the end of the rotating shaft away from the rotating motor, a bidirectional screw is threadedly connected to the outer wall of the movable block, a bracket is rotatably mounted on both ends of the bidirectional screw, and a forward and reverse rotating motor coaxially connected to one end of the bidirectional screw is mounted on the bracket.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. By setting up a T-slot, transmission mechanism, bidirectional screw and moving block, the pressure vessel can be driven to rotate without the need for manual hand-held device rotation, thereby improving the convenience of weld inspection. Attached Figure Description

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram showing the installation of the guiding mechanism and the transmission mechanism of this utility model;

[0014] Figure 3 This is a schematic diagram of the T-slot structure of this utility model;

[0015] Figure 4 This is a schematic diagram showing the connection between the moving block and the bidirectional screw.

[0016] In the diagram: 1. End plate; 2. T-slot; 3. Rotating shaft; 4. Synchronous shaft; 5. Pulley; 6. Rotary motor; 7. Sliding bracket; 8. Sliding groove; 9. Rotating wheel; 10. Transmission belt; 11. Fixed lug; 12. Guide rod; 13. Compression spring; 14. Limit wheel; 15. Upper slider; 16. Lower slider; 17. Forward and reverse motor; 18. Bidirectional screw; 19. Moving block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4In this embodiment of the utility model, a weld inspection support device includes two end plates 1. Each end plate 1 has a T-slot 2 inside. Two upper sliders 15 are symmetrically slidably connected inside the horizontal groove of the T-slot 2. A rotating shaft 3 is rotatably installed on the inner wall of the upper slider 15. A lower slider 16 is slidably connected inside the vertical groove of the T-slot 2. A synchronous shaft 4 is rotatably installed on the inner wall of the lower slider 16. A transmission mechanism is installed at both ends of the rotating shaft 3 and the synchronous shaft 4. A rotating wheel 9 is interference-fitted onto the outer wall of the rotating shaft 3 between the two end plates 1. A guide mechanism connected to the lower slider 16 is installed on the outer side of the end plate 1. A moving block 19 is rotatably installed on the end face of the two pulleys 5 away from the rotating motor 6 of the rotating shaft 3. A bidirectional screw 18 is threadedly connected to the outer wall of the moving block 19. A bracket is rotatably installed at both ends of the bidirectional screw 18. A forward and reverse motor 17 coaxially connected to one end of the bidirectional screw 18 is installed on the bracket.

[0019] In this embodiment: First, according to the diameter of the pressure vessel, the forward and reverse motor 17 is started. The forward and reverse motor 17 drives the bidirectional screw 18 to rotate. At this time, the two moving blocks 19 move towards or away from each other. The two moving blocks 19 drive the two rotating shafts 3 to move towards or away from each other, thereby changing the distance between the two rotating shafts 3. At the same time, the rotating wheel 9 works synchronously until the rotating wheel 9 can effectively support the outer peripheral surface of the pressure vessel.

[0020] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The transmission mechanism includes pulleys 5 installed at both ends of the rotating shaft 3 and the synchronous shaft 4. Three pulleys 5 located on the same vertical plane are connected by a transmission belt 10. A sliding bracket 7 is slidably installed at one end of an end plate 1. A rotary motor 6 is installed on the sliding bracket 7. The output end of the rotary motor 6 is coaxially connected to the pulley 5 at one end of the rotating shaft 3.

[0021] In this embodiment: when supporting the pressure vessel, the rotary motor 6 is started, and the rotary motor 6 drives the pulley 5 connected to it to rotate. The pulley 5 drives the other two pulleys 5 to rotate synchronously through the transmission belt 10. At this time, the two rotating shafts 3 and the synchronous shaft 4 rotate synchronously, thereby driving the transmission belt 10 at the other end to transmit power. At this time, the rotating wheel 9 that rotates with the rotating shaft 3 can drive the pressure vessel to rotate, thereby detecting the annular welding position.

[0022] Please refer to this carefully. Figure 2 The two end plates 1 are rotatably mounted with limiting wheels 14 to support the transmission belt 10 at their far ends. The two limiting wheels 14 are used to ensure that the transmission belt 10 and the pulley 5 at one end of the synchronous shaft 4 meet the requirement that the transmission wrap angle is greater than 120 degrees.

[0023] In this embodiment, the design of the limiting wheel 14 ensures that the three pulleys 5 will not slip during the transmission process of the transmission belt 10.

[0024] Please refer to this carefully. Figure 2 The guiding mechanism includes four fixed ears 11, which are arranged in a rectangular shape. A guide rod 12 is fixedly connected between the upper and lower fixed ears 11. The two ends of the lower slider 16 are formed with outwardly protruding sliding ears, which are slidably connected to the outer wall of the guide rod 12. A compression spring 13 is fixedly connected between the bottom end of the guide rod 12 and the fixed ear 11 located below. The compression spring 13 is sleeved on the outer wall of the guide rod 12.

[0025] In this embodiment: when the two rotating shafts 3 move towards or away from each other, the two rotating shafts 3 drive the upper slider 15 to slide axially in the horizontal groove of the T-slot 2. When the two rotating shafts 3 approach each other, the compression spring 13 returns to its original position and pulls the sliding ear to slide downward along the outer wall of the guide rod 12. The sliding ear slides downward along the vertical groove of the T-slot 2 through the lower slider 16. In this way, the effective tension of the transmission belt 10 can be ensured. Similarly, when the two rotating shafts 3 move away from each other, the sliding ear slides upward along the outer wall of the guide rod 12. At this time, the compression spring 13 is stretched and deformed, so that the synchronous shaft 4 and the pulleys 5 at both ends of the synchronous shaft 4 move upward, keeping the transmission belt 10 in a taut state.

[0026] Please refer to this carefully. Figure 1 and Figure 2 One end of an end plate 1 is provided with a sliding groove 8 for sliding support 7 to slide. The vertical cross section of the sliding support 7 and the vertical cross section of the sliding end of the sliding groove 8 are both convex.

[0027] In this embodiment: when the two rotating shafts 3 move, the sliding bracket 7 can slide along the sliding groove 8, thereby realizing the synchronous operation of the rotating motor 6.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A weld inspection support device, comprising two end plates (1), characterized in that, Both end plates (1) have T-slots (2) inside. Two upper sliders (15) are symmetrically slidably connected inside the horizontal groove of the T-slot (2). A rotating shaft (3) is rotatably installed on the inner wall of the upper slider (15). A lower slider (16) is slidably connected inside the vertical groove of the T-slot (2). A synchronous shaft (4) is rotatably installed on the inner wall of the lower slider (16). A transmission mechanism is installed at both ends of the rotating shaft (3) and the synchronous shaft (4). A rotating wheel (9) is interference-fitted between the two end plates (1) on the outer wall of the rotating shaft (3). A guide mechanism connected to the lower slider (16) is installed on the outer side of the end plate (1).

2. The weld inspection support device according to claim 1, characterized in that, The transmission mechanism includes pulleys (5) installed at both ends of the rotating shaft (3) and the synchronous shaft (4). Three pulleys (5) located on the same vertical plane are connected by a transmission belt (10). A sliding bracket (7) is slidably installed at one end of one end plate (1). A rotary motor (6) is installed on the sliding bracket (7). The output end of the rotary motor (6) is coaxially connected to the pulley (5) at one end of the rotating shaft (3).

3. The weld inspection support device according to claim 2, characterized in that, The two end plates (1) are rotatably mounted with limiting wheels (14) that support the transmission belt (10) at their far ends. The two limiting wheels (14) are used to ensure that the transmission belt (10) and the pulley (5) at one end of the synchronous shaft (4) satisfy the transmission wrap angle greater than 120 degrees.

4. The weld inspection support device according to claim 3, characterized in that, The guiding mechanism includes four fixed ears (11) arranged in a rectangular shape. A guide rod (12) is fixedly connected between the upper and lower fixed ears (11). The two ends of the lower slider (16) are formed with outwardly protruding sliding ears. The sliding ears are slidably connected to the outer wall of the guide rod (12). A compression spring (13) is fixedly connected between the bottom end of the guide rod (12) and the fixed ear (11) located below. The compression spring (13) is sleeved on the outer wall of the guide rod (12).

5. A weld inspection support device according to claim 4, characterized in that, One end of the end plate (1) is provided with a sliding groove (8) for the sliding bracket (7) to slide. The vertical cross section of the sliding bracket (7) and the vertical cross section of the sliding end of the sliding groove (8) are both "convex" shaped.

6. A weld inspection support device according to claim 5, characterized in that, The rotating shaft (3) has two pulleys (5) at the end away from the rotating motor (6) on which a moving block (19) is rotatably mounted. The outer wall of the moving block (19) is threaded with a bidirectional screw (18). The two ends of the bidirectional screw (18) are rotatably mounted with brackets. A forward and reverse motor (17) coaxially connected to one end of the bidirectional screw (18) is mounted on the brackets.

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