High-end steel pipe water injection pressure resistance test equipment and method

Abstract

The invention relates to the technical field of steel pipe testing, and provides high-end steel pipe water injection pressure resistance testing equipment and method.The high-end steel pipe water injection pressure resistance testing equipment comprises a bottom plate, a first supporting table, a second supporting table and a third supporting table are sequentially arranged on the bottom plate from front to back, and a conveying belt is installed on the first supporting table; an extension assembly is arranged above the third supporting table, a first electric push rod is installed on the extension assembly, the first electric push rod and the bottom plate are connected through a bearing, a check block is welded to the bottom plate, a top plate is arranged above the extension assembly, a second motor is installed on the top plate, and a first motor is installed on the second motor. And an output shaft of the second motor is fixedly connected with a first gear. By means of the technical scheme, the problems that according to existing pressure resistance testing equipment, the steel pipes cannot be automatically pressed down while the water injection structure gets close to the steel pipes through single driving equipment, one-by-one detection cannot be achieved, and the steel pipes cannot be conveniently switched are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe testing, and in particular to a high-end steel pipe water injection pressure resistance testing device and method. Background Art

[0002] Steel pipes are widely used in the oil, gas, chemical, electric power, shipbuilding and other industries, especially in high-pressure transmission systems, and are subjected to huge internal and external pressure loads. In order to ensure the quality of steel pipes, they need to be tested after they are produced. Steel pipe water injection pressure test equipment is mainly used to detect the pressure resistance of steel pipes under high pressure environments to ensure their safety and reliability in practical applications, but the existing testing equipment still has some shortcomings.

[0003] The invention patent with the publication number CN113670537A discloses a steel pipe hydraulic testing machine, including a placement rack, a frame, a detection mechanism and multiple clamping mechanisms, each clamping mechanism includes two movable clamping plates, a synchronous linkage component driving the two clamping plates to move, and a driving member, a clamping area is formed between the two clamping plates, a guide plate for guiding the steel pipe into the clamping area is provided on the frame, an ejection mechanism for transmitting the steel pipes to the guide plate one by one is provided below the placement rack, a feeding linkage mechanism for driving the ejection mechanism to move is provided between the ejection mechanism and one of the clamping plates, a discharging rod for ejecting the steel pipe out of the clamping area is rotatably provided on the frame, and a discharging linkage mechanism for driving the discharging rod to move is provided between the discharging rod and another of the clamping plates. The device can realize automatic feeding and discharging of steel pipes without the need for an extra driving source, thereby greatly reducing the workload of manual labor and the labor cost of the enterprise, and is suitable for the future development needs of the enterprise and is energy-saving and environmentally friendly. Although the above-mentioned device can reduce labor costs, when in use, it is not possible to use a single driving device to make the water injection structure approach the steel pipe and automatically press down the steel pipe at the same time, and it is not possible to continuously rotate the screw after the steel pipe is compressed to keep the steel pipe in a compressed state while making the water injection structure automatically approach the steel pipe, and the existing testing equipment is not able to detect and conveniently switch steel pipes one by one. Summary of the invention

[0004] The present invention proposes a high-end steel pipe water injection pressure test equipment and method, which solves the problems that the existing testing equipment is unable to automatically press down the steel pipe while making the water injection structure close to the steel pipe through a single driving device, and is unable to automatically make the water injection structure close to the steel pipe while continuously rotating the screw after the steel pipe is compressed to keep the steel pipe in a compressed state, and the existing testing equipment is unable to detect and conveniently switch steel pipes one by one.

[0005] The technical solution of the present invention is as follows:

[0006] A high-end steel pipe water injection pressure test equipment, comprising a bottom plate, a first support platform, a second support platform and a third support platform are arranged on the bottom plate from front to back in sequence, a conveyor belt is installed on the first support platform, an extension component is arranged above the third support platform, a first electric push rod is installed on the extension component, a stopper is welded on the bottom plate, a top plate is arranged above the extension component, a second motor is installed on the top plate, a first gear is fixedly connected to the output shaft of the second motor, a second gear is meshedly connected to the rear side of the first gear, and a rotating connection is formed between the second gear and the top plate. The front side of the first gear is meshedly connected with a rack, a connecting frame is fixedly connected to the rack, a water injection pipe is fixedly connected to the connecting frame, the rack and the connecting frame are both slidably connected to the top plate, a fixing frame is welded to the connecting frame, a third electric push rod is installed on the fixing frame, a first connecting block is fixedly connected to the third electric push rod, a mounting rod is penetrated through the first connecting block, a second connecting block is fixedly arranged below the mounting rod, a second spring is fixedly connected between the second connecting block and the first connecting block, and a feeding assembly is installed in the second supporting platform;

[0007] A connecting assembly is installed in the second gear, a stud is installed above the connecting assembly, an outer side of the stud is threadedly connected to an outer bushing, a second connecting plate is fixedly provided on the outer bushing, a guide rod is welded below the second connecting plate, a second electric push rod is fixedly installed in the middle of the bottom of the top plate, the guide rod and the bottom of the second electric push rod are both fixedly connected to a first pressure plate, and a second pressure plate is installed on the first pressure plate.

[0008] As a preferred solution of the present invention, the extension component includes a first motor fixedly mounted on the base plate, a first connecting tube is keyed on the output shaft of the first motor, a spline rod is fixedly provided on the first connecting tube, a second connecting tube is keyed on the outer side of the spline rod, placement grooves are provided on the first connecting tube and the second connecting tube, and the second connecting tube and the spline rod are rotationally connected to the first electric push rod.

[0009] As a preferred solution of the present invention, the connecting assembly includes an outer ring fixedly connected to the second gear, a connecting block is rotatably installed inside the outer ring, a slot is provided in the connecting block, a blocking block is fitted on the inner wall of the slot, a first spring is fixedly connected between the blocking block and the outer ring, and the connecting block and the stud are fixedly connected.

[0010] As a preferred solution of the present invention, a groove is provided in the clamping block, a convex rod is fixedly connected to the outer ring, and the clamping block forms a sliding structure with the outer ring through the convex rod and the groove.

[0011] As a preferred solution of the present invention, a first connecting plate is fixedly connected to the top of the stud, and the second connecting plate and the guide rod form a lifting structure between the stud and the outer bushing and the top plate.

[0012] As a preferred solution of the present invention, the first support platform, the second support platform and the third support platform are each divided into a left half and a right half, and the connection between the left half and the right half of the first support platform, the second support platform and the third support platform is a sliding connection, the left half of the first support platform, the second support platform and the third support platform is fixedly connected to the second connecting tube as an integral structure, and the right half of the first support platform, the second support platform and the third support platform is fixedly connected to the first connecting tube as an integral structure.

[0013] As a preferred solution of the present invention, the upper surfaces of the second support platform and the third support platform are higher in the front and lower in the back, the third support platform is in contact with the first connecting tube and the second connecting tube, and the placement grooves are evenly distributed along the circumference of the first connecting tube and the second connecting tube.

[0014] As a preferred solution of the present invention, the feeding assembly includes a third motor fixedly connected to the second support platform, an eccentric wheel is installed on the output shaft of the third motor, a lifting platform is slidably installed on the second support platform, a movable groove is opened on the lifting platform, a limit block is arranged in the movable groove, and the limit block and the second support platform are slidably connected.

[0015] As a preferred solution of the present invention, a first extension tube is slidably installed in the water injection pipe, a second extension tube is fixedly connected to the first extension tube, a third spring is fixedly connected between the second extension tube and the water injection pipe, the inner wall of the water injection pipe and the outer walls of the first connecting block and the second connecting block are in contact with each other, a mounting rod is fixedly connected to the second connecting block, and the mounting rod passes through the first connecting block.

[0016] A high-end steel pipe water injection pressure test method comprises the following steps:

[0017] S1: According to the length of the steel pipe, the extension length of the extension assembly is adjusted. When the length of the extension assembly changes, the lengths of the first support platform, the second support platform and the third support platform will also change accordingly;

[0018] S2: The steel pipe is transported from the first support platform to the second support platform by a conveyor belt. The steel pipes on the second support platform are transported one by one to the third support platform by a feeding assembly. The steel pipes are transported to the extension assembly by using the inclined surface of the third support platform. The steel pipes are transported to the area to be inspected by the extension assembly.

[0019] S3: The first gear is driven to rotate by the second motor, and the first gear drives the second gear and the connecting assembly to rotate. When the second gear and the connecting assembly rotate, the stud rotates, thereby changing the height of the outer bushing, the second connecting plate and the guide rod, so that the steel pipe in the area to be inspected can be pressed by the first pressing plate and the second pressing plate at the bottom of the guide rod. After the steel pipe is pressed, the second gear continues to rotate. When the rotation resistance of the stud is too large, the connecting assembly slides on the stud, so that the steel pipe always remains fixed;

[0020] S4: Continuous rotation of the first gear will cause the rack to pull the water injection pipe and the connecting frame to move. The water injection pipe will press the steel pipe. The side of the steel pipe away from the water injection pipe will abut against the block. At this time, both ends of the steel pipe remain in a closed state. By extending the third electric push rod on the fixed frame, the first connecting block is driven to move downward. The first connecting block will gradually press the second connecting block through the second spring. The second connecting block gradually increases the water pressure in the water injection pipe and the steel pipe to complete the steel pipe water injection pressure test. After the test is completed, the steel pipe is transported to the back side of the device through the extension component.

[0021] The working principle and beneficial effects of the present invention are:

[0022] 1. Through the first gear, the second gear and the connecting assembly that are set, when the second motor drives the first gear to rotate, it will drive the second gear to rotate and drive the rack to move. When the second gear rotates, it will drive the connecting block to rotate through the block on the outer ring. During the rotation of the connecting block, the rotation of the stud will drive the second connecting plate to move downward under the guidance of the guide rod, so that the first pressure plate and the second pressure plate press the steel pipe tightly, so that the device remains stable during the subsequent water pressure test. After the first pressure plate and the second pressure plate press the steel pipe, the resistance to the continued rotation of the stud increases until the outer ring slides on the outside of the connecting block. At this time, the continuous rotation of the first gear will drive the rack and the connecting frame to move, and the connecting frame will make the water injection pipe press the side of the steel pipe, and the side of the steel pipe away from the water injection pipe will abut on the stop block, so that both ends of the steel pipe remain closed, so that the device can automatically press down the steel pipe while making the water injection structure close to the steel pipe through a single driving device during operation, and can continue to move the water injection pipe after pressing down the steel pipe, thereby enhancing the convenience of the device when used.

[0023] 2. Through the first support platform, the second support platform, the third support platform and the extension component of the segmented structure on the device, when the extension component extends its own length, it can drive the three support platforms to extend synchronously, so that the device can adapt to steel pipes of different lengths for water injection pressure test, and the second electric push rod arranged above the spline rod can independently push the steel pipe to the middle position, so that the steel pipe can be pressure tested from the outside to the inside at the same time as the water injection pressure test, thereby enhancing the applicability of the device.

[0024] 3. The device is provided with a feeding assembly, a first electric push rod and an extension assembly. When the first electric push rod is extended, it can drive the spline rod to slide in the second connecting tube. Since the first electric push rod and the spline rod and the second connecting tube are all rotatably connected, the device can adjust the overall length of the device without affecting the normal rotation of the second connecting tube to adapt to the use of steel pipes of different lengths, thereby ensuring the stability of the device during operation. The device can drive the eccentric wheel on the feeding assembly to rotate and drive the lifting platform to move up and down intermittently, and the lifting platform will drive a single steel pipe to move upward and transport it to the placement groove when moving upward, thereby realizing the function of detecting one by one. After the detection is completed, the device can drive the first connecting tube, the spline rod and the second connecting tube to rotate through the first motor, so as to conveniently switch the steel pipes, thereby enhancing the convenience of the device when in use, and solving the problem that the existing steel pipe pressure resistance detection device cannot detect one by one and conveniently switch steel pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic diagram of the overall structure of a high-end steel pipe water injection pressure test device of the present invention;

[0027] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at center A;

[0028] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 4 yes Figure 1 A magnified schematic diagram of the structure at C in the middle;

[0030] Figure 5 yes Figure 1 A magnified schematic diagram of the structure at D in the middle;

[0031] Figure 6 yes Figure 1 A magnified schematic diagram of the structure at E in the middle;

[0032] Figure 7 is a schematic diagram of the internal structure of the second support platform of the present invention;

[0033] Figure 8 yes Figure 7 A magnified schematic diagram of the structure at F in the middle;

[0034] Fig. 9 yes Figure 7 A magnified schematic diagram of the structure at G in the middle;

[0035] Fig.10It is a schematic diagram of the internal structure of the connection assembly of the present invention;

[0036] Fig.11 It is a schematic diagram of the connection structure between the first electric push rod and the extension assembly of the present invention.

[0037] 1. Bottom plate; 2. Stopper; 3. First electric push rod; 4. Top plate; 5. Extension assembly; 501. First motor; 502. First connecting tube; 503. Spline rod; 504. Second connecting tube; 505. Placement groove; 6. Second motor; 7. First gear; 8. Second gear; 9. Connecting assembly; 901. Outer ring; 902. Connecting block; 903. Slot; 904. Block; 905. Groove; 906. Protruding rod; 907. First spring; 10. Stud; 11. Outer bushing; 12. First connecting plate; 13. Second connecting plate; 14. Guide rod; 15. Second electric push rod; 16. First pressing plate; 17. Second pressing plate; 18. First support platform; 19. Second support platform; 20. , the third support platform; 21, the feeding assembly; 2101, the third motor; 2102, the eccentric wheel; 2103, the moving groove; 2104, the limit block; 2105, the lifting platform; 22, the conveyor belt; 2201, the fourth motor; 2202, the first synchronous wheel; 2203, the synchronous belt; 2204, the second synchronous wheel; 2205, the roller; 2206, the crawler track; 2207, the anti-skid groove; 23, the fixed frame; 24, the third electric push rod; 25, the first connecting block; 26, the mounting rod; 27, the second spring; 28, the second connecting block; 29, the water injection pipe; 30, the connecting frame; 31, the first connecting rod; 32, the pipe sleeve; 33, the rack; 34, the first extension pipe; 35, the second extension pipe; 36, the third spring. DETAILED DESCRIPTION

[0038] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] like Figure 1-Figure 11As shown, this embodiment proposes a high-end steel pipe water injection pressure test equipment, including a bottom plate 1, on which a first support platform 18, a second support platform 19 and a third support platform 20 are arranged in sequence from front to back, a conveyor belt 22 is installed on the first support platform 18, an extension component 5 is arranged above the third support platform 20, and a first electric push rod 3 is installed on the extension component 5, a stopper 2 is welded on the bottom plate 1, and a top plate 4 is arranged above the extension component 5, the top plate 4 is fixed to the top of the wall, a second motor 6 is installed on the top plate 4, a first gear 7 is fixedly connected to the output shaft of the second motor 6, the rear side of the first gear 7 is meshedly connected to the second gear 8, the second gear 8 and the top plate 4 are rotatably connected, the front side of the first gear 7 is meshedly connected to the rack 33, the rack 33 is fixedly connected to the connecting frame 30, the connecting frame A water injection pipe 29 is fixedly connected to 30, and the rack 33 and the connecting frame 30 are both slidably connected to the top plate 4. A fixing frame 23 is welded to the connecting frame 30, and a third electric push rod 24 is installed on the fixing frame 23. The third electric push rod 24 is fixedly connected to the first connecting block 25, and a mounting rod 26 is penetrated in the first connecting block 25. A second connecting block 28 is fixedly arranged below the mounting rod 26, and a second spring 27 is fixedly connected between the second connecting block 28 and the first connecting block 25. A feeding assembly 21 is installed in the second support platform 19; the feeding assembly 21 can transport a single steel pipe upward when working, so as to realize the function of detecting a single steel pipe one by one later. At the same time, the device can automatically unload or load the steel pipe to be detected through the extension assembly 5, thereby improving the convenience of the device when used.

[0041] A connecting component 9 is installed in the second gear 8, a stud 10 is installed above the connecting component 9, an outer side of the stud 10 is threadedly connected to an outer bushing 11, a second connecting plate 13 is fixedly provided on the outer bushing 11, a guide rod 14 is welded below the second connecting plate 13, a second electric push rod 15 is fixedly installed in the middle of the bottom of the top plate 4, the bottoms of the guide rod 14 and the second electric push rod 15 are fixedly connected to a first pressure plate 16, and a second pressure plate 17 is installed on the first pressure plate 16. The second motor 6 is used to drive the first gear 7 to rotate, and the first gear 7 will drive the second gear 8 to rotate and the rack 33 to move. The second gear 8 can rotate the stud 10 through the connecting component 9, thereby changing the initial height of the second connecting plate 13. The second connecting plate 13 will drive the first pressure plate 16 and the second pressure plate 17 on the guide rod 14 to move downward. When the steel pipe is tightened, the connecting component 9 stops the stud 10 from rotating, while the second gear 8 still slides, and the rack 33 drives the connecting frame 30 and the water injection pipe 29 to move, thereby closing both ends of the steel pipe for water injection pressure resistance test.

[0042] Example 2

[0043] like Figure 1-Figure 11As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a high-end steel pipe water injection pressure test equipment.

[0044] In this embodiment, the extension component 5 includes a first motor 501 fixedly mounted on the base plate 1, a first connecting tube 502 is keyed on the output shaft of the first motor 501, a spline rod 503 is fixedly arranged on the first connecting tube 502, a second connecting tube 504 is keyed on the outer side of the spline rod 503, a placement groove 505 is provided on the first connecting tube 502 and the second connecting tube 504, the spline rod 503 and the second connecting tube 504 are both rotatably connected to the first electric push rod 3, and the first motor 501 drives the first connecting tube 502 to rotate. The cylinder 502 rotates, driving the spline rod 503 and the second connecting cylinder 504 to rotate, so as to transport the steel pipe in the placement groove 505 to the detection area. Since the first motor 501 and the first connecting cylinder 502 are key-connected, when the first electric push rod 3 is subsequently extended or shortened, the first motor 501 can continue to drive the first connecting cylinder 502 to rotate. The device can change the distance between the first connecting cylinder 502 and the second connecting cylinder 504 by extending or shortening the first electric push rod 3 to adapt to the use of steel pipes of different lengths.

[0045] In this embodiment, the connecting component 9 includes an outer ring 901 fixedly connected to the second gear 8, and a connecting block 902 is rotatably installed in the outer ring 901. A slot 903 is provided in the connecting block 902, and a block 904 is fitted on the inner wall of the slot 903. A first spring 907 is fixedly connected between the block 904 and the outer ring 901, and the connecting block 902 and the stud 10 are fixedly connected. The first spring 907 can support the block 904 so that the block 904 can press the slot 903 on the connecting block 902, thereby allowing the outer ring 901 to drive the connecting block 902 and the stud 10 to rotate, and when the rotation resistance of the stud 10 is too large, the block 904 will compress the first spring 907, causing the block 904 to shrink into the outer ring 901. At this time, the outer ring 901 will slide on the outside of the connecting block 902, so that the steel pipe can be laterally closed after the steel pipe is longitudinally compressed.

[0046] In this embodiment, a groove 905 is provided in the block 904, and a protruding rod 906 is fixedly connected to the outer ring 901. The block 904 forms a sliding structure with the outer ring 901 through the protruding rod 906 and the groove 905. The block 904 can move straightly through the protruding rod 906 and the groove 905. The sliding structure on the device makes the block 904 move more smoothly, thereby ensuring the stability of the device when working.

[0047] In this embodiment, the top of the stud 10 is fixedly connected with a first connecting plate 12, and the second connecting plate 13 and the guide rod 14 form a lifting structure between the stud 10 and the outer bushing 11 and the top plate 4. A pipe sleeve 32 is slidably installed on the top plate 4, and a first connecting rod 31 is slidably installed in the pipe sleeve 32. The first connecting rod 31 is slidably installed on the connecting frame 30. There is a horizontal sliding between the first connecting rod 31 and the pipe sleeve 32, and there is a longitudinal sliding between the pipe sleeve 32 and the top plate 4 and the first connecting rod 31 and the connecting frame 30. When the stud 10 rotates, it can drive the second connecting plate 13 to move vertically up and down under the guidance of the guide rod 14, so that the device can press the steel pipe from top to bottom, and the first connecting rod 31 and the pipe sleeve 32 ensure that the connecting frame 30 can move straight.

[0048] In this embodiment, the first support platform 18, the second support platform 19 and the third support platform 20 are each divided into a left half and a right half, and the connection method between the left half and the right half of the first support platform 18, the second support platform 19 and the third support platform 20 is a sliding connection. The left half of the first support platform 18, the second support platform 19 and the third support platform 20 is fixedly connected to the second connecting tube 504 as an integral structure, and the right half of the first support platform 18, the second support platform 19 and the third support platform 20 is fixedly connected to the first connecting tube 502 as an integral structure. When the spacing between the first connecting tube 502 and the second connecting tube 504 changes, the spacing between the left and right parts of the first support platform 18, the second support platform 19 and the third support platform 20 will also change to adapt to the support and transportation of steel pipes of different lengths.

[0049] In this embodiment, the upper surfaces of the second support platform 19 and the third support platform 20 are higher in the front and lower in the back, so that the steel pipe can roll backward automatically. The third support platform 20 and the first connecting tube 502 and the second connecting tube 504 are in contact with each other, and the placement grooves 505 are evenly distributed along the circumference of the first connecting tube 502 and the second connecting tube 504. The circumferentially evenly distributed placement grooves 505 are used to place the steel pipe, and the steel pipe can be transported to the area to be inspected by rotating the first connecting tube 502 and the second connecting tube 504.

[0050] In this embodiment, the feeding assembly 21 includes a third motor 2101 fixedly connected to the second support platform 19, an eccentric wheel 2102 is installed on the output shaft of the third motor 2101, a lifting platform 2105 is slidably installed on the second support platform 19, a moving groove 2103 is opened on the lifting platform 2105, a limit block 2104 is arranged in the moving groove 2103, the limit block 2104 and the second support platform 19 are slidably connected, and the eccentric wheel 2102 is driven to rotate by the third motor 2101. The rotation of the eccentric wheel 2102 will push the lifting platform 2105 upward, and when the lifting platform 2105 moves upward, it will push the steel pipes upward one by one, so that the device can load materials one by one.

[0051] In this embodiment, the conveyor belt 22 includes a fourth motor 2201 fixedly installed in the first support platform 18, a first synchronous wheel 2202 is fixedly arranged on the output shaft of the fourth motor 2201, a synchronous belt 2203 is installed on the first synchronous wheel 2202, a second synchronous wheel 2204 is arranged above the synchronous belt 2203, a roller 2205 is fixedly connected to the second synchronous wheel 2204, the roller 2205 and the first support platform 18 are rotatably connected, a crawler 2206 is installed on the outer side of the roller 2205, and anti-skid grooves 2207 are equidistantly provided on the crawler 2206, the first synchronous wheel 2202 is driven to rotate by the fourth motor 2201, and the first synchronous wheel 2202 will drive the second synchronous wheel 2204 and the roller 2205 to rotate through the synchronous belt 2203, so that the crawler 2206 rotates and transports steel pipes in batches, and the anti-skid grooves 2207 prevent the steel pipes from slipping on the crawler 2206.

[0052] In this embodiment, a first extension tube 34 is slidably installed in the water injection tube 29, a second extension tube 35 is fixedly connected to the first extension tube 34, a third spring 36 is fixedly connected between the second extension tube 35 and the water injection tube 29, and the third spring 36 between the second extension tube 35 and the water injection tube 29 can press the second extension tube 35 against one side of the steel pipe to be tested, the inner wall of the water injection tube 29 and the outer walls of the first connecting block 25 and the second connecting block 28 are in contact with each other, and a mounting rod 26 is fixedly connected to the second connecting block 28, the mounting rod 26 runs through the first connecting block 25, and the mounting rod 26 can guide the first connecting block 25 and the second connecting block 28. When the first connecting block 25 moves downward, it will drive the second connecting block 28 to move downward, thereby increasing the water pressure in the water injection tube 29, thereby performing a water injection pressure test.

[0053] Specifically, the present invention is a high-end steel pipe water injection pressure test device and method, first, as Figure 1 , Figure 2 , Figure 7 and Fig.11As shown, the extension assembly 5 can adjust its own length to adapt to the length of different steel pipes, and can transport steel pipes. The first motor 501 drives the first connecting tube 502 to rotate, driving the spline rod 503 and the second connecting tube 504 to rotate, so as to transport the steel pipe in the placement groove 505 to the detection area. Since the first motor 501 and the first connecting tube 502 are key-connected, the first motor 501 can continue to drive the first connecting tube 502 to rotate when the first electric push rod 3 is extended or shortened. By extending or shortening the first electric push rod 3, the spacing between the first connecting tube 502 and the second connecting tube 504 is changed to adapt to the use of steel pipes of different lengths. Since the connection between the left and right halves of the first support platform 18, the second support platform 19 and the third support platform 20 are all sliding connections, when the length of the extension assembly 5 changes, the lengths of the first support platform 18, the second support platform 19 and the third support platform 20 will also change accordingly. The steel pipes are transported from the first support platform 18 to the second support platform 19 through the conveyor belt 22, and the fourth motor 2201 drives the first synchronous wheel 2202 to rotate. The first synchronous wheel 2202 drives the second synchronous wheel 2204 and the roller 2205 to rotate through the synchronous belt 2203, so that the track 2206 rotates and transports the steel pipes in batches, and the anti-skid groove 2207 prevents the steel pipes from slipping on the track 2206. The third motor 2101 drives the eccentric wheel 2102 to rotate. The rotation of the eccentric wheel 2102 will push the lifting platform 2105 upward. When the lifting platform 2105 moves upward, it will push the steel pipes upward one by one, so that the device can load them one by one. The steel pipes on the second support platform 19 will be transported one by one to the third support platform 20 through the feeding assembly 21. The inclined surface of the third support platform 20 will be used to transport the steel pipes to the placement groove 505 of the first connecting tube 502 and the second connecting tube 504. The first connecting tube 502 and the second connecting tube 504 are rotated to transport the steel pipes to the area to be detected.

[0054] like Figure 1-Figure 10As shown, the first gear 7 is driven to rotate by the second motor 6, and the first gear 7 drives the second gear 8 and the outer ring 901 on the connecting component 9 to rotate. When the second gear 8 and the outer ring 901 rotate, the first spring 907 can support the clamping block 904, and the clamping block 904 presses the clamping groove 903 on the connecting block 902. The clamping block 904 can move straightly through the protruding rod 906 and the groove 905, so that the outer ring 901 drives the connecting block 902 and the stud 10 to rotate. When the stud 10 rotates, the outer bushing 11 and the second connecting plate 13 move vertically under the guidance of the guide rod 14, so that the steel pipe in the area to be detected can be pressed by the first pressing plate 16 and the second pressing plate 17 at the bottom of the guide rod 14. After the steel pipe is pressed, the second gear 8 continues to rotate. When the rotation resistance of the stud 10 is too large, the inner wall of the slot 903 causes the block 904 to compress the first spring 907, so that the block 904 shrinks into the outer ring 901. At this time, the outer ring 901 will slide on the outside of the connecting block 902, so that the steel pipe can be continuously closed laterally after being longitudinally pressed. The connecting assembly 9 will slide on the stud 10, so that the steel pipe can always remain in a fixed state through the first gear 7. The rack 33 is continuously rotated to pull the water injection pipe 29 and the connecting frame 30 to move. The first connecting rod 31 will slide in the pipe sleeve 32, and the water injection pipe 29 will press the steel pipe. The side of the steel pipe away from the water injection pipe 29 abuts against the block 2. At this time, both ends of the steel pipe remain in a closed state. By extending the third electric push rod 24 on the fixed frame 23, the first connecting block 25 is driven to move downward. The first connecting block 25 will gradually press the second connecting block 28 through the second spring 27. The second connecting block 28 gradually increases the water pressure in the water injection pipe 29 and the steel pipe to complete the steel pipe water injection pressure test. After the test is completed, the first connecting cylinder 502 and the second connecting cylinder 504 on the extension component 5 are rotated to transport the steel pipe to the rear side of the device. During the water injection pressure test, the device can also extend the second electric push rod 15 to drive the first pressing plate 16 and the second pressing plate 17 to move downward and press the steel pipe, so as to achieve the pressure test from the outside to the inside.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-end steel pipe water injection pressure test equipment, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with a first support platform (18), a second support platform (19) and a third support platform (20) in sequence from front to back; a conveyor belt (22) is installed on the first support platform (18); an extension component (5) is provided above the third support platform (20); a first electric push rod (3) is installed on the extension component (5); a stopper (2) is welded on the bottom plate (1); a top plate (4) is provided above the extension component (5); a second motor (6) is installed on the top plate (4); a first gear (7) is fixedly connected to the output shaft of the second motor (6); a second gear (8) is meshedly connected to the rear side of the first gear (7); the second gear (8) is rotatably connected to the top plate (4); a rack is meshedly connected to the front side of the first gear (7); (33), a connecting frame (30) is fixedly connected to the rack (33), a water injection pipe (29) is fixedly connected to the connecting frame (30), the rack (33) and the connecting frame (30) are both slidably connected to the top plate (4), a fixing frame (23) is welded to the connecting frame (30), a third electric push rod (24) is installed on the fixing frame (23), a first connecting block (25) is fixedly connected to the third electric push rod (24), a mounting rod (26) is arranged through the first connecting block (25), a second connecting block (28) is fixedly arranged below the mounting rod (26), a second spring (27) is fixedly connected between the second connecting block (28) and the first connecting block (25), and a feeding assembly (21) is installed in the second support platform (19); A connecting component (9) is installed in the second gear (8), a stud (10) is installed above the connecting component (9), the outer side of the stud (10) is threadedly connected to an outer bushing (11), a second connecting plate (13) is fixedly arranged on the outer bushing (11), a guide rod (14) is welded below the second connecting plate (13), a second electric push rod (15) is fixedly installed in the middle of the bottom of the top plate (4), the bottoms of the guide rod (14) and the second electric push rod (15) are fixedly connected to a first pressure plate (16), and a second pressure plate (17) is installed on the first pressure plate (16).

2. A high-end steel pipe water injection pressure test equipment according to claim 1, characterized in that: The extension assembly (5) comprises a first motor (501) fixedly mounted on the base plate (1); a first connecting tube (502) is keyed on the output shaft of the first motor (501); a spline rod (503) is fixedly arranged on the first connecting tube (502); an outer key of the spline rod (503) is keyed to a second connecting tube (504); a placement groove (505) is provided on the first connecting tube (502) and the second connecting tube (504); the spline rod (503) and the second connecting tube (504) are both rotatably connected to the first electric push rod (3).

3. The high-end steel pipe water injection pressure test equipment according to claim 1 is characterized in that: The connecting assembly (9) comprises an outer ring (901) fixedly connected to the second gear (8), a connecting block (902) rotatably mounted inside the outer ring (901), a slot (903) being provided inside the connecting block (902), a locking block (904) being fitted on the inner wall of the slot (903), a first spring (907) being fixedly connected between the locking block (904) and the outer ring (901), and a fixed connection between the connecting block (902) and the stud (10).

4. A high-end steel pipe water injection pressure test equipment according to claim 3, characterized in that: The clamping block (904) is provided with a groove (905), and a protruding rod (906) is fixedly connected to the outer ring (901). The clamping block (904) forms a sliding structure with the outer ring (901) through the protruding rod (906) and the groove (905).

5. The high-end steel pipe water injection pressure test equipment according to claim 1 is characterized in that: The top of the stud (10) is fixedly connected to a first connecting plate (12), and the second connecting plate (13) and the guide rod (14) form a lifting structure between the stud (10) and the outer bushing (11) and the top plate (4).

6. The high-end steel pipe water injection pressure test equipment according to claim 2 is characterized in that: The first support platform (18), the second support platform (19) and the third support platform (20) are each divided into a left half and a right half, and the connection method between the left half and the right half of the first support platform (18), the second support platform (19) and the third support platform (20) is a sliding connection. The left half of the first support platform (18), the second support platform (19) and the third support platform (20) is fixedly connected to the second connecting tube (504) to form an integral structure, and the right half of the first support platform (18), the second support platform (19) and the third support platform (20) is fixedly connected to the first connecting tube (502) to form an integral structure.

7. The high-end steel pipe water injection pressure test equipment according to claim 6 is characterized in that: The upper surfaces of the second support platform (19) and the third support platform (20) are both higher in the front and lower in the back; the third support platform (20) fits in with the first connecting tube (502) and the second connecting tube (504); and the placement grooves (505) are evenly distributed along the circumference of the first connecting tube (502) and the second connecting tube (504).

8. The high-end steel pipe water injection pressure test equipment according to claim 7 is characterized in that: The feeding assembly (21) comprises a third motor (2101) fixedly connected to the second support platform (19); an eccentric wheel (2102) is installed on the output shaft of the third motor (2101); a lifting platform (2105) is slidably installed on the second support platform (19); a moving groove (2103) is provided on the lifting platform (2105); a limit block (2104) is arranged in the moving groove (2103); and the limit block (2104) and the second support platform (19) are slidably connected.

9. The high-end steel pipe water injection pressure test equipment according to claim 1, characterized in that: A first extension tube (34) is slidably installed in the water injection pipe (29), a second extension tube (35) is fixedly connected to the first extension tube (34), a third spring (36) is fixedly connected between the second extension tube (35) and the water injection pipe (29), the inner wall of the water injection pipe (29) and the outer walls of the first connecting block (25) and the second connecting block (28) are in contact with each other, and a mounting rod (26) is fixedly connected to the second connecting block (28), and the mounting rod (26) runs through the first connecting block (25).

10. A method for testing the water injection pressure of a high-end steel pipe, using the water injection pressure test equipment of claim 1, characterized in that: The steps include: S1: adjusting the extension length of the extension assembly (5) according to the length of the steel pipe, when the length of the extension assembly (5) changes, the lengths of the first support platform (18), the second support platform (19) and the third support platform (20) will also change accordingly; S2: The steel pipes are conveyed from the first support platform (18) to the second support platform (19) by means of a conveyor belt (22); the steel pipes on the second support platform (19) are conveyed one by one to the third support platform (20) by means of a feeding assembly (21); the steel pipes are conveyed to the extension assembly (5) by means of the inclined surface of the third support platform (20); and the steel pipes are conveyed to the area to be inspected by means of the extension assembly (5); S3: The first gear (7) is driven to rotate by the second motor (6), and the first gear (7) drives the second gear (8) and the connecting assembly (9) to rotate. When the second gear (8) and the connecting assembly (9) rotate, the stud (10) is rotated, thereby changing the height of the outer bushing (11), the second connecting plate (13) and the guide rod (14), so that the steel pipe in the area to be inspected can be pressed by the first pressing plate (16) and the second pressing plate (17) at the bottom of the guide rod (14). After the steel pipe is pressed, the second gear (8) continues to rotate. When the rotation resistance of the stud (10) is too large, the connecting assembly (9) slides on the stud (10), so that the steel pipe is always kept in a fixed state; S4: The continuous rotation of the first gear (7) causes the rack (33) to pull the water injection pipe (29) and the connecting frame (30) to move, and the water injection pipe (29) will press the steel pipe. The side of the steel pipe away from the water injection pipe (29) will abut against the block (2). At this time, both ends of the steel pipe remain in a closed state. By extending the third electric push rod (24) on the fixed frame (23), the first connecting block (25) is driven to move downward. The first connecting block (25) will gradually press the second connecting block (28) through the second spring (27). The second connecting block (28) gradually increases the water pressure in the water injection pipe (29) and the steel pipe, completing the water injection pressure test of the steel pipe. After the test is completed, the steel pipe is transported to the rear side of the device through the extension component (5).

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