An accumulator weld inspection apparatus
By designing an accumulator weld inspection device with a self-rotating detection and cleaning mechanism, the problems of cumbersome operation and low efficiency in the existing technology have been solved, and efficient and accurate weld inspection has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROTH HYDRAULICS (TAICANG) CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
Existing technologies for inspecting accumulator welds are cumbersome, inefficient, and make it difficult to perform efficient full-circumference inspections.
An energy storage weld inspection device was designed. It uses a drive mechanism to make the flaw detector rotate to inspect the weld and is equipped with a cleaning mechanism to remove weld slag, thereby improving inspection efficiency and accuracy.
This technology enables inspection of the accumulator without the need for a handheld flaw detector, simplifying operation, improving weld inspection efficiency, and ensuring inspection accuracy.
Smart Images

Figure CN224535962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weld inspection technology, and in particular to an energy storage weld inspection device. Background Technology
[0002] Weld inspection is a crucial quality control step in the welding process. Weld quality directly affects the strength, sealing, and safety of the welded structure. Therefore, weld inspection is an indispensable step in the production process of pressure vessels, pipelines, energy storage equipment, and other fields.
[0003] An accumulator is a device used to store hydraulic energy or buffer pressure fluctuations, and is widely used in industrial hydraulic systems. Its structure typically consists of a high-strength metal casing, which is often welded together to ensure sealing and pressure resistance.
[0004] After the accumulator is welded, a comprehensive inspection of the weld seams surrounding the casing is required to avoid the risk of explosion or leakage due to defects. Currently, accumulator weld seam inspection mostly relies on workers using handheld ultrasonic flaw detectors to scan along the weld seams. This method not only requires the inspectors to maintain focus for extended periods but also necessitates frequent adjustments around the accumulator, making it cumbersome and inefficient. Therefore, this paper proposes an accumulator weld seam inspection device to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an energy storage weld inspection device, which aims to solve the problem mentioned in the prior art that "the operation of energy storage weld inspection is too cumbersome and the inspection efficiency is low".
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an energy storage weld inspection device, comprising a body, an annular groove on the top of the body, a slide table slidably connected to the inner wall of the body, a flaw detector fixedly connected to the top of the slide table, an electric push rod fixedly connected to the inner wall of the body, the piston end of the electric push rod fixedly connected to the inner wall of the slide table, a drive mechanism provided inside the slide table, and a cleaning mechanism provided on the top of the body; The driving mechanism includes a rotating rod, one end of which is rotatably connected to the inner wall of the slide table, and the other end of which is fixedly connected to a driven gear plate. A rotating cylinder is fixedly connected to the outer wall of the rotating rod, and a rubber sleeve is fixedly connected to the outer wall of the rotating cylinder. A motor is fixedly connected to the right side of the slide table, and a rotating shaft is fixedly connected to the output end of the motor. A driving gear is fixedly connected to the outer wall of the rotating shaft, and steel balls are rolled along the inner wall of the annular groove.
[0007] As a further description of the above technical solution: The cleaning mechanism includes a brush that is slidably connected to the top of the body.
[0008] As a further description of the above technical solution: A sliding frame is fixedly connected to the top of the brush, and the sliding frame is a rectangular frame structure.
[0009] As a further description of the above technical solution: The inner wall of the slide is rotatably connected to a transmission rod, and the end of the transmission rod away from the slide is fixedly connected to a driven bevel gear.
[0010] As a further description of the above technical solution: An eccentric wheel is fixedly connected to the outer wall of the transmission rod.
[0011] As a further description of the above technical solution: A drive bevel gear is fixedly connected to the outer wall of the rotating shaft, and the drive bevel gear meshes with the driven bevel gear.
[0012] As a further description of the above technical solution: The eccentric wheel and the transmission rod are in an eccentric state, and the outer wall of the eccentric wheel is attached to the inner wall of the slide frame.
[0013] As a further description of the above technical solution: The rotating shaft passes through and is rotatably connected to the inner wall of the slide, and the driving gear meshes with the driven gear plate.
[0014] This utility model has the following beneficial effects: 1. In this utility model, the design of the drive mechanism allows the accumulator to rotate while inspecting the weld, enabling the flaw detector to inspect the weld around its outer wall. This eliminates the need to hold the flaw detector around the accumulator to inspect the weld, making operation simpler and improving weld inspection efficiency.
[0015] 2. In this utility model, the cleaning mechanism can clean the weld seam on the surface of the accumulator while it is being inspected, thus preventing residual welding slag from adhering to the surface and causing a decrease in inspection accuracy, thereby ensuring the accuracy of accumulator weld seam inspection. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the cross-sectional structure of the present invention; Figure 3 This utility model Figure 2 A magnified structural diagram at point A.
[0017] Legend: 1. Machine body; 2. Annular groove; 3. Slide table; 4. Flaw detector; 5. Electric push rod; 6. Drive mechanism; 61. Rotating rod; 62. Driven gear plate; 63. Rotating cylinder; 64. Rubber sleeve; 65. Motor; 66. Rotating shaft; 67. Driving gear; 68. Steel ball; 7. Cleaning mechanism; 71. Brush; 72. Slide frame; 73. Transmission rod; 74. Driven bevel gear; 75. Eccentric wheel; 76. Driven bevel gear. Detailed Implementation
[0018] 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.
[0019] Reference Figures 1-3 This utility model provides an embodiment of an energy storage weld inspection device, comprising a body 1, an annular groove 2 on the top of the body 1, a slide 3 slidably connected to the inner wall of the body 1, a flaw detector 4 fixedly connected to the top of the slide 3, the flaw detector 4 being an OmniScanX3 ultrasonic flaw detector, the OmniScanX3 employing a phased array plus conventional ultrasonic dual-mode, capable of detecting internal weld defects such as cracks, porosity, and lack of fusion, an electric push rod 5 fixedly connected to the inner wall of the body 1, the piston end of the electric push rod 5 fixedly connected to the inner wall of the slide 3, a drive mechanism 6 provided inside the slide 3, and a cleaning mechanism 7 provided on the top of the body 1.
[0020] Reference Figures 1-2 The drive mechanism 6 includes a rotating rod 61. One end of the rotating rod 61 is rotatably connected to the inner wall of the slide table 3, and the other end of the rotating rod 61 is fixedly connected to a driven gear 62. When the driven gear 62 rotates, it drives the rotating rod 61 to rotate on the inner wall of the slide table 3. A rotating cylinder 63 is fixedly connected to the outer wall of the rotating rod 61. When the rotating rod 61 rotates, it drives the rotating cylinder 63 to rotate synchronously. A rubber sleeve 64 is fixedly connected to the outer wall of the rotating cylinder 63. The rubber sleeve 64 is made of rubber. When the rotating cylinder 63 rotates, the excellent friction of the rubber sleeve 64 can drive the accumulator to rotate inside the annular groove 2. A motor 65 is fixedly connected to the right side of the slide table 3. Steel balls 68 are rolled on the inner wall of the annular groove 2. The support of the steel balls 68 can make the accumulator rotate smoothly inside the annular groove 2.
[0021] Reference Figure 3The output end of the motor 65 is fixedly connected to a rotating shaft 66, which is rotatably connected to the inner wall of the slide table 3. The outer wall of the rotating shaft 66 is fixedly connected to a drive gear 67, which meshes with the driven gear disk 62. When the rotating shaft 66 rotates, it will drive the drive gear 67 to rotate synchronously. When the drive gear 67 rotates, it will drive the driven gear disk 62 that meshes with it to rotate.
[0022] Reference Figures 1-3 The cleaning mechanism 7 includes a brush 71, which is slidably connected to the top of the machine body 1. The reciprocating movement of the brush 71 cleans the weld seams on its outer wall, preventing weld slag residue from affecting the accuracy of the inspection. A sliding frame 72 is fixedly connected to the top of the brush 71. The sliding frame 72 has a rectangular frame structure. A transmission rod 73 is rotatably connected to the inner wall of the slide table 3. A driven bevel gear 74 is fixedly connected to the end of the transmission rod 73 away from the slide table 3. As the driven bevel gear 74 rotates, it drives the transmission rod 73 to rotate synchronously on the inner wall of the slide table 3. A deflector is fixedly connected to the outer wall of the transmission rod 73. The eccentric wheel 75 and the transmission rod 73 are in an eccentric state. The outer wall of the eccentric wheel 75 is attached to the inner wall of the slide frame 72. When the transmission rod 73 rotates, it will drive the eccentric wheel 75 to slide back and forth against the inner wall of the slide frame 72. At the same time, the eccentric wheel 75 will push and pull the slide frame 72 back and forth, so that the slide frame 72 drives the brush 71 to slide back and forth on the top of the machine body 1. The outer wall of the rotating shaft 66 is fixedly connected to the drive bevel gear 76. The drive bevel gear 76 meshes with the driven bevel gear 74. When the drive bevel gear 76 rotates, it will drive the driven bevel gear 74 meshing with it to rotate.
[0023] Working principle: After welding, the accumulator is placed inside the annular groove 2, with the weld seam of the accumulator directly below the flaw detector 4. Then, the electric push rod 5 is activated, causing the slide table 3 to slide downwards on the inner wall of the machine body 1. As the slide table 3 slides downwards, it drives the rotating rod 61 to move downwards simultaneously. At this time, the rotating rod 61 drives the rotating cylinder 63 to move downwards simultaneously until the rubber sleeve 64 on the outer wall of the rotating cylinder 63 is attached to the outer wall of the accumulator, pressing the accumulator tightly against the outer wall of the steel ball 68. Then, the electric push rod 5 is closed, and the flaw detector 4 is activated to inspect the weld seam of the accumulator. At the same time, the motor 65 is activated, driving the rotating shaft 66 to rotate. As the rotating shaft 66 rotates, it drives the drive gear. The gear 67 rotates synchronously, and the driving gear 67 drives the driven gear 62 meshing with it to rotate. At this time, the driven gear 62 drives the rotating rod 61 to rotate on the inner wall of the slide table 3. The rotating rod 61 drives the rotating cylinder 63 to rotate synchronously. The rotating cylinder 63, with the excellent friction of the rubber sleeve 64, can drive the accumulator to rotate inside the annular groove 2. The rotation of the accumulator allows the flaw detector 4 to inspect the weld seam around its outer wall. After the inspection is completed, the electric push rod 5 is activated again to drive the slide table 3 to slide upward, so that the rotating cylinder 63 drives the rubber sleeve 64 to disengage from the accumulator, and the accumulator can be removed from inside the annular groove 2.
[0024] While the rotating shaft 66 rotates, it drives the driving bevel gear 76 to rotate synchronously. While the driving bevel gear 76 rotates, it drives the driven bevel gear 74 that meshes with it to rotate. At this time, the driven bevel gear 74 drives the transmission rod 73 to rotate on the inner wall of the slide table 3. While the transmission rod 73 rotates, it drives the eccentric wheel 75 to slide back and forth against the inner wall of the slide frame 72. At the same time, the eccentric wheel 75 pushes and pulls the slide frame 72 back and forth, so that the slide frame 72 drives the brush 71 to slide back and forth on the top of the machine body 1. While the accumulator rotates inside the annular groove 2, the reciprocating movement of the brush 71 can clean the weld seam on its outer wall, avoiding the impact of welding slag residue on the accuracy of detection.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An energy storage tank weld inspection device, comprising a body (1), characterized in that: The top of the body (1) is provided with an annular groove (2), the inner wall of the body (1) is slidably connected with a slide (3), the top of the slide (3) is fixedly connected with a flaw detector (4), the inner wall of the body (1) is fixedly connected with an electric push rod (5), the piston end of the electric push rod (5) is fixedly connected to the inner wall of the slide (3), the slide (3) is provided with a drive mechanism (6), and the top of the body (1) is provided with a cleaning mechanism (7). The drive mechanism (6) includes a rotating rod (61), one end of which is rotatably connected to the inner wall of the slide (3), the other end of which is fixedly connected to a driven gear plate (62), a rotating cylinder (63) is fixedly connected to the outer wall of the rotating rod (61), a rubber sleeve (64) is fixedly connected to the outer wall of the rotating cylinder (63), a motor (65) is fixedly connected to the right side of the slide (3), a rotating shaft (66) is fixedly connected to the output end of the motor (65), a drive gear (67) is fixedly connected to the outer wall of the rotating shaft (66), and a steel ball (68) is rolledly connected to the inner wall of the annular groove (2).
2. The accumulator weld inspection device according to claim 1, characterized in that: The cleaning mechanism (7) includes a brush (71) which is slidably connected to the top of the body (1).
3. The accumulator weld inspection device according to claim 2, characterized in that: The top of the brush (71) is fixedly connected to a sliding frame (72), which is a rectangular frame structure.
4. The accumulator weld inspection device according to claim 1, characterized in that: The inner wall of the slide (3) is rotatably connected to a transmission rod (73), and the end of the transmission rod (73) away from the slide (3) is fixedly connected to a driven bevel gear (74).
5. The accumulator weld inspection device according to claim 4, characterized in that: An eccentric wheel (75) is fixedly connected to the outer wall of the transmission rod (73).
6. The accumulator weld inspection device according to claim 1, characterized in that: The outer wall of the rotating shaft (66) is fixedly connected to a driving bevel gear (76), which meshes with the driven bevel gear (74).
7. The accumulator weld inspection device according to claim 5, characterized in that: The eccentric wheel (75) and the transmission rod (73) are in an eccentric state, and the outer wall of the eccentric wheel (75) is attached to the inner wall of the slide frame (72).
8. The accumulator weld inspection device according to claim 1, characterized in that: The rotating shaft (66) passes through and is rotatably connected to the inner wall of the slide (3), and the driving gear (67) meshes with the driven gear disk (62).