Automatic cleaning and ball passing test device for steel pipe

Abstract

The application discloses a kind of steel pipe automatic cleaning and ball test device, it is related to pipeline locomotive vehicle assembly steel pipe patency inspection process equipment technical field, including main frame, ball test main body mechanism, steel ball follow-up collection camera system and control system, ball test main body mechanism is installed in one end of main frame, steel ball follow-up collection camera system is slidably arranged in the other end of main frame, the steel pipe to be tested is installed between ball test main body mechanism and steel ball follow-up collection camera system, ball test main body mechanism can test steel pipe of different diameters, ball test main body mechanism and steel ball follow-up collection camera system are electrically connected with control system.The control system includes electric control box and identity recognition working condition all-in-one machine;The application is reasonably designed, the ball test process is recorded completely, and is suitable for multi-specification pipe ball test;During the whole test process, steel ball can automatically enter the steel pipe to be tested, and is automatically stored.

Description

Technical Field

[0001] This invention relates to the technical field of equipment for inspecting the patency of steel pipes used in pipeline locomotive and rolling stock assembly, and more specifically to the technical field of ball-passing test devices for automatic cleaning of steel pipes. Background Technology

[0002] Pipe cleaning and ball-passing tests are conducted to ensure the unobstructed flow of locomotive piping and prevent foreign objects from entering the braking system during locomotive operation, thus affecting operational safety. Existing patents disclose the following technologies: Patent publication number CN202330038U, entitled "An Infrared Collection Device for Ball-Passing Tests of Railway Freight Cars," discloses the following: a metal sheet is fixed inside each nylon ball used in the ball-passing test; a receiving net is connected to the outlet of the ball-passing test device; a radio frequency infrared counting device is installed at the connection between the outlet of the ball-passing test device and the receiving net; and the radio frequency infrared counting device is connected to a counting and early warning device. This invention monitors and warns of the number of balls passing through the test, avoiding the problem of accidents caused by nylon balls remaining inside the car body. Furthermore, by adding an indicative metal sheet inside the nylon ball, it achieves traceability of responsibility for experimental accidents.

[0003] Patent publication number CN115497649A, entitled "A Ball-Passing Test Device and a Test Method for a Ball-Passing Test Device," discloses the following: A ball-passing test device and a test method for a ball-passing test device. The ball-passing test device includes a housing, a rotating component, a driving component, a torque sensor, and a controller. The housing has a receiving cavity, a ball-entry channel, and a ball-exit channel. The housing is fitted onto the rotating component, which is arranged within the receiving cavity. The rotating component has a ball-receiving cavity and is rotatable relative to the housing to connect the ball-receiving cavity with either the ball-entry or ball-exit channel. The driving component is connected to one end of the torque sensor, and the other end of the torque sensor is connected to the rotating component to drive the rotating component to rotate. The torque sensor is connected to the rotating component to monitor the torque of the rotating component. The controller is connected to the driving component to control the output parameters of the driving component based on the torque data monitored by the torque sensor. This ball-passing test device can verify the stability of the ball-passing device, avoid jamming, and improve the reliability and safety of the ball-passing device.

[0004] Depending on the pipe model, there are various specifications of steel balls used for ball testing. Due to the low level of automation in existing ball testing equipment, the steel balls are frequently lost after exiting the pipe during the test, and there are also problems of missed or repeated tests.

[0005] To ensure the effectiveness of the experiment, designing an automatic ball-passing test device is of practical significance. Summary of the Invention

[0006] The purpose of this invention is to provide a ball-passing test device for automatic cleaning of steel pipes in order to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution: This invention provides an automatic steel pipe cleaning ball-passing test device, including a main frame, a ball-passing test main body mechanism, a steel ball follow-up collection camera system, and a control system. The ball-passing test main body mechanism is installed at one end of the main frame, and the steel ball follow-up collection camera system is slidably disposed at the other end of the main frame. The steel pipe to be tested is installed between the ball-passing test main body mechanism and the steel ball follow-up collection camera system. The ball-passing test main body mechanism can test steel pipes of different diameters. Both the ball-passing test main body mechanism and the steel ball follow-up collection camera system are electrically connected to the control system. The control system includes an electrical control box and an integrated identification and operation status machine.

[0008] Specifically, the device's main functions include: fully recording the ball-passing test process; adapting to ball-passing tests on pipes of various specifications; automatically entering and collecting the steel ball during the entire test; having an alarm function that triggers if a steel ball fails to exit the pipe in time, or if the steel ball fails to enter the pipe at the start of the test; allowing manual collection and placement of the steel ball at the inlet in case of device malfunction; and preventing further accidents through an emergency stop function in case of a malfunction during the steel ball test.

[0009] In one embodiment, the main structure for ball passing test includes an auxiliary frame, a steel ball storage and retrieval system, a connecting pipe display rack, a steel ball rerouting system, and an inlet pipe connection system. The auxiliary frame is installed at one end of the main frame and is higher than the main frame. The steel ball storage and retrieval system, the connecting pipe display rack, the steel ball rerouting system, and the inlet pipe connection system are all installed on the auxiliary frame. The connecting pipe display rack is located on one side of the steel ball storage and retrieval system, the steel ball switching system is located at the outlet of the steel ball storage and retrieval system, and the inlet pipe connection system is located at the outlet of the steel ball switching system. The inlet pipe connection system is used to install the steel pipe to be tested. Specifically, the automatic ball-passing test bench is mainly used for cleaning the inside of the steel pipe after cleaning. The switching between each function is automatically executed in sequence by program control, which ensures the effectiveness of the cleaning process.

[0010] In one embodiment, a coding system is also included, which is located on the auxiliary rack near the connecting tube display rack.

[0011] Specifically, in this solution, the steel pipes are automatically marked with ink. After the steel pipe cleaning test is completed, the steel pipes are placed on the auxiliary frame. The system automatically identifies whether the steel pipes are in place and then sprays the code of the steel pipes used for the test and the operator information onto the surface of the steel pipes in real time, so as to achieve "one code per pipe".

[0012] The system is equipped with visual recognition. By taking photos of the actual object and comparing them, the system can automatically identify the steel pipe's coding information.

[0013] In one embodiment, the steel ball storage and retrieval system includes parallel inclined ball passages of different widths. Each inclined ball passage has an entrance gate at its entrance and an exit gate at its exit. The entrance gate and the exit gate are controlled to open and close by an inlet cylinder and an outlet cylinder, respectively. Each inclined ball passage has a steel ball counting sensor at its entrance. The inlet cylinder, the outlet cylinder, and the steel ball counting sensor are all electrically connected to the control system.

[0014] Specifically, the storage cylinder controls the storage of steel balls after identification; the steel ball counting sensor establishes a real-time database while storing steel balls and displays it on the display screen; the release cylinder automatically opens the corresponding steel ball gate based on the selected option for each type of steel pipe rolling ball test and deducts the corresponding number of steel balls from the database. Each test involves one pipe, one ball, one record, and one barcode scan, preventing confusion and errors.

[0015] At the start of the test, steel balls of suitable specifications are selected and inserted into the steel pipe according to its requirements. After the test, operators place all the steel balls into the inclined ball-passing channel, which automatically sorts and stores the steel balls according to their diameter. If there is a discrepancy between the number of balls exited and the number stored, the system will automatically issue a warning and record the steel ball entry and exit information.

[0016] In one embodiment, the ball changing system includes a ball track provided at the exit end of all inclined ball passages, and a ball baffle vertically provided outside the ball track to block the corresponding ball.

[0017] In one embodiment, the ball changing system further includes a changing cylinder and a ball support plate. The ball baffle is provided with a horizontal through groove that allows the ball support plate to pass through. The changing cylinder is located outside the ball slide. The piston end of the changing cylinder is fixedly connected to the ball support plate. The ball support plate is provided with a plurality of limiting semicircular holes corresponding to each inclined ball passage.

[0018] Specifically, after the corresponding steel ball selected by the operator falls from the outlet gate onto the steel ball tray, after a certain period of time, the switching cylinder retracts the tray, and the steel ball is restricted by the baffle to fall into the steel ball slide until it rolls into the inlet pipe system.

[0019] In one embodiment, an entrance camera is also included, positioned above the ball-changing system.

[0020] Specifically, the entrance camera records the entire process of the steel ball lane-changing system.

[0021] In one embodiment, the inlet pipe system includes a first rotating joint, a second rotating joint, and a third rotating joint arranged sequentially from top to bottom. The first rotating joint, the second rotating joint, and the third rotating joint are connected to each other by a flexible hose. The steel pipe to be tested is detachably connected to the third rotating joint. The free end of the steel pipe to be tested is connected to a steel ball follow-up collection camera system. An automatic air blowing cover device is provided above the first rotating joint.

[0022] Specifically, the first and second rotating joints are used together to accommodate the shape and direction of steel pipe inlets of different specifications; the rotation of the third rotating joint can lock the lower end of the connecting pipe to prevent it from falling.

[0023] Before the test begins, the operator needs to clamp the steel pipe onto the inlet pipe system, and connect the other end to the steel ball follow-up collection camera system to collect foreign objects and steel balls during the steel pipe test.

[0024] After the steel pipe is clamped, the automatic air-blowing cover device automatically blows the inside of the steel pipe for 5 seconds. The air inlet then automatically shuts off the air source, and the ball-passing system is activated simultaneously. The system automatically selects a steel ball of the corresponding diameter according to the steel pipe diameter, and the ball enters the steel pipe to remove foreign objects inside the pipe. The steel pipe then enters the end storage.

[0025] The multi-angle adapter can adapt to steel pipes of different shapes and lengths.

[0026] In one embodiment, the steel ball tracking and collecting camera system includes a movable support plate that can move on the main frame, a screw and nut mechanism that drives the movable support plate to move, a steel ball collecting box disposed on the movable support plate, and a steel ball collecting container that communicates with the bottom outlet of the steel ball collecting box.

[0027] Specifically, after the steel ball falls freely or is ejected with air, it rolls down the inclined surface at the bottom of the steel ball collection box into the steel ball collection container.

[0028] In one embodiment, a rubber protective plate is provided on one side of the steel ball collection box, and an exit camera located above the steel ball collection box is provided on one side of the movable support plate.

[0029] Specifically, during use, the outlet end of the steel pipe is inserted into the steel ball collection box through the rubber protective plate, and the outlet camera above the steel ball collection box records the process in real time.

[0030] The beneficial effects of this invention are as follows: 1. This invention is reasonably designed and records the entire ball-passing test process, adapting to ball-passing tests on pipes of various specifications. During the entire test, the steel ball can automatically enter the steel pipe to be tested and automatically be collected. An alarm will be triggered if any steel ball fails to come out of the pipe in time, and an alarm will also be triggered if the steel ball does not enter the pipe at the start of the test. In case of device failure, the steel ball can be collected manually and placed in the feed port. If a malfunction occurs during the steel ball test, the emergency stop function can be used to prevent further accidents.

[0031] 2. The storage cylinder controls the storage of steel balls after identification; the steel ball counting sensor establishes a real-time database during steel ball storage and displays it on the display screen; the release cylinder automatically opens the corresponding steel ball gate based on the selected option for each type of steel pipe rolling ball test and deducts the corresponding number of steel balls from the database. Each test involves one pipe, one ball, one record, and one barcode scan, preventing confusion and errors.

[0032] 3. The automatic ball-passing test bench is mainly used for cleaning the inside of the steel pipe after cleaning. The switching between each function is automatically executed in sequence by program control, which ensures the effectiveness of the cleaning process. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the main structure of the ball-passing test; Figure 3 yes Figure 2 A schematic diagram of a partial structure; Figure 4 yes Figure 3 A magnified view of a portion of the image; Figure 5 This is a schematic diagram of the steel ball retrieval system; Figure 6 This is a schematic diagram of the inlet pipe system; Figure 7 This is a schematic diagram of the inkjet printing system; Figure 8 This is a schematic diagram of the automatic air-blowing cover device; Figure 9 This is a schematic diagram of the steel ball reversing system; Attached reference numerals: 1-Electrical control box, 2-Inkjet printing system, 3-Connecting pipe display rack, 4-Steel ball storage and retrieval system, 5-Identification and working condition integrated machine, 6-Entrance camera, 7-Steel ball follow-up collection camera system, 8-Entrance pipe connection system, 9-Steel ball changing system, 10-Automatic air blowing cover device; 41-Inbound cylinder, 42-Outbound cylinder, 43-Inclined ball passage, 44-Steel ball counting sensor; 91-Steel ball slide, 92-Steel ball support plate, 93-Steel ball baffle, 94-Channel switching cylinder. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0038] Example 1 like Figures 1 to 9 As shown, this embodiment provides an automatic steel pipe cleaning ball-passing test device, including a main frame, a ball-passing test main body mechanism, a steel ball follow-up collection camera system 7, and a control system. The ball-passing test main body mechanism is installed at one end of the main frame, and the steel ball follow-up collection camera system 7 is slidably disposed at the other end of the main frame. The steel pipe to be tested is installed between the ball-passing test main body mechanism and the steel ball follow-up collection camera system 7. The ball-passing test main body mechanism can test steel pipes of different diameters. Both the ball-passing test main body mechanism and the steel ball follow-up collection camera system 7 are electrically connected to the control system. The control system includes an electrical control box 1 and an integrated identification and working condition machine 5.

[0039] Specifically, to ensure the effectiveness of the test, an automatic steel pipe cleaning ball-passing test device was designed. The main functions of this device include: complete recording of the ball-passing test process; adaptability to ball-passing tests on pipes of various specifications; automatic entry and collection of steel balls into the steel pipe to be tested throughout the test; alarm function if any steel ball fails to exit the pipe in time, and alarm function if the steel ball does not enter the pipe at the start of the test; manual collection and placement of steel balls at the inlet in case of device failure; and emergency stop function to prevent further accidents in case of malfunction during the steel ball test.

[0040] Example 2 like Figures 1 to 9 As shown, this embodiment provides an automatic steel pipe cleaning ball-passing test device, including a main frame, a ball-passing test main body mechanism, a steel ball follow-up collection camera system 7, and a control system. The ball-passing test main body mechanism is installed at one end of the main frame, and the steel ball follow-up collection camera system 7 is slidably disposed at the other end of the main frame. The steel pipe to be tested is installed between the ball-passing test main body mechanism and the steel ball follow-up collection camera system 7. The ball-passing test main body mechanism can test steel pipes of different diameters. Both the ball-passing test main body mechanism and the steel ball follow-up collection camera system 7 are electrically connected to the control system. The control system includes an electrical control box 1 and an integrated identification and working condition machine 5.

[0041] The main structure of the ball test includes an auxiliary frame, a steel ball storage and retrieval system 4, a connecting pipe display rack 3, a steel ball rerouting system 9, and an inlet pipe connection system 8. The auxiliary frame is installed at one end of the main frame and is higher than the main frame. The steel ball storage and retrieval system 4, the connecting pipe display rack 3, the steel ball rerouting system 9, and the inlet pipe connection system 8 are all installed on the auxiliary frame. The connecting pipe display rack 3 is set on one side of the steel ball storage and retrieval system 4, the steel ball rerouting system 9 is set at the outlet end of the steel ball storage and retrieval system 4, the inlet pipe system 8 is set at the outlet end of the steel ball rerouting system 9, and the steel pipe to be tested is installed in the inlet pipe system 8.

[0042] Specifically, the automatic ball-passing test bench is mainly used for cleaning the inside of the steel pipe after cleaning. The switching between each function is automatically executed in sequence by program control, which ensures the effectiveness of the cleaning process.

[0043] Example 3 This embodiment is a further optimization based on embodiment 2, specifically: It also includes a coding system 2, which is located on the auxiliary frame near the connecting tube display rack 3.

[0044] Specifically, in this solution, the steel pipes are automatically marked with ink. After the steel pipe cleaning test is completed, the steel pipes are placed on the auxiliary frame. The system automatically identifies whether the steel pipes are in place and then sprays the code of the steel pipes used for the test and the operator information onto the surface of the steel pipes in real time, so as to achieve "one code per pipe".

[0045] The system is equipped with visual recognition. By taking photos of the actual object and comparing them, the system can automatically identify the steel pipe's coding information.

[0046] Example 4 This embodiment is a further optimization based on embodiment 2, specifically: The steel ball storage and retrieval system 4 includes parallel inclined ball passages 43 with different widths. Each inclined ball passage 43 has an entrance gate at its entrance end and an exit gate at its exit end. The entrance gate and the exit gate are controlled to open and close by an inlet cylinder 41 and an outlet cylinder 42, respectively. Each inclined ball passage 43 has a steel ball counting sensor 44 at its entrance end. The inlet cylinder 41, the outlet cylinder 42, and the steel ball counting sensor 44 are all electrically connected to the control system.

[0047] Specifically, the storage cylinder 41 controls the storage of steel balls after identification; the steel ball counting sensor 44 establishes a real-time database during steel ball storage and displays it on the display screen; the release cylinder 42 automatically opens the corresponding steel ball gate based on the selected option for each type of steel pipe rolling ball test and deducts the corresponding number of steel balls from the database. Each test involves one pipe, one ball, one record, and one barcode scan, preventing confusion and errors.

[0048] At the start of the test, steel balls of suitable specifications are selected and inserted into the steel pipe according to its requirements. At the end of the test, the operators place all the steel balls into the inclined ball-passing channel 43, which automatically sorts and stores the steel balls according to their diameter. If there is a discrepancy between the number of balls exited and the number stored, the system will automatically issue a warning and record the steel ball entry and exit information.

[0049] Example 5 This embodiment is a further optimization based on embodiment 4, specifically: The ball changing system 9 includes a ball track 91 located at the exit end of all inclined ball passages 43, and a ball baffle 93 vertically located outside the ball track 91 to block the corresponding ball.

[0050] The ball changing system 9 also includes a changing cylinder 94 and a ball support plate 92. The ball baffle 93 is provided with a horizontal through groove that allows the ball support plate 92 to pass through. The changing cylinder 94 is located outside the ball slide 91. The piston end of the changing cylinder 94 is fixedly connected to the ball support plate 92. The ball support plate 92 is provided with a plurality of limiting semicircular holes corresponding to each inclined ball passage 43.

[0051] Specifically, after the corresponding steel ball selected by the operator falls from the outlet gate onto the steel ball support plate 92, after a certain period of time, the switching cylinder 94 retracts the support plate, and the steel ball is restricted by the baffle to fall into the steel ball slide 91 until it rolls into the inlet pipe system 8.

[0052] It also includes the entrance camera 6 installed above the ball-changing system 9.

[0053] Specifically, the entrance camera 6 records the entire process of the steel ball lane changing system 9.

[0054] Example 6 This embodiment is a further optimization based on Embodiments 1 to 5, specifically: The inlet pipe system 8 includes a first rotating joint, a second rotating joint, and a third rotating joint arranged sequentially from top to bottom. The first rotating joint, the second rotating joint, and the third rotating joint are connected to each other by a flexible hose. The steel pipe to be tested is detachably connected to the third rotating joint. The free end of the steel pipe to be tested is connected to the steel ball follow-up collection camera system 7. An automatic blow-up cover device is provided above the first rotating joint.

[0055] Specifically, the first and second rotating joints are used together to accommodate the shape and direction of steel pipe inlets of different specifications; the rotation of the third rotating joint can lock the lower end of the connecting pipe to prevent it from falling.

[0056] Before the test begins, the operator needs to clamp the steel pipe onto the inlet pipe system 8, and connect the other end to the steel ball follow-up collection camera system 7 to collect foreign objects and steel balls during the steel pipe test.

[0057] After the steel pipe is clamped, the automatic blow-up cover device automatically blows the inside of the steel pipe for 5 seconds. The air inlet automatically shuts off the air source, and at the same time, the ball-passing system is activated. The system automatically selects a steel ball of the corresponding diameter according to the steel pipe diameter, and the ball enters the steel pipe to remove foreign objects inside the pipe. The steel pipe then enters the end storage.

[0058] The multi-angle adapter can adapt to steel pipes of different shapes and lengths.

[0059] Example 7 This embodiment is a further optimization based on Embodiments 1 to 6, specifically: The steel ball follow-up collection camera system 7 includes a movable support plate that can move on the main frame, a screw and nut mechanism that drives the movable support plate to move, a steel ball collection box set on the movable support plate, and a steel ball collection container connected to the bottom outlet of the steel ball collection box.

[0060] Specifically, after the steel ball falls freely or is ejected with air, it rolls down the inclined surface at the bottom of the steel ball collection box into the steel ball collection container.

[0061] A rubber protective plate is installed on one side of the steel ball collection box, and an exit camera is installed on the side of the movable support plate above the steel ball collection box.

[0062] Specifically, during use, the outlet end of the steel pipe is inserted into the steel ball collection box through the rubber protective plate, and the outlet camera above the steel ball collection box records the process in real time.

Claims

1. A ball-passing test device for automatic cleaning of steel pipes, characterized in that, The system includes a main frame, a ball-passing test main mechanism, a steel ball follow-up collection camera system (7), and a control system. The ball-passing test main mechanism is installed at one end of the main frame, and the steel ball follow-up collection camera system (7) is slidably disposed at the other end of the main frame. The steel pipe to be tested is installed between the ball-passing test main mechanism and the steel ball follow-up collection camera system (7). The ball-passing test main mechanism can test steel pipes of different diameters. Both the ball-passing test main mechanism and the steel ball follow-up collection camera system (7) are electrically connected to the control system. The main structure for the ball-passing test includes an auxiliary frame, a steel ball storage and retrieval system (4), a connecting pipe display rack (3), a steel ball rerouting system (9), and an inlet pipe connection system (8). The auxiliary frame is installed at one end of the main frame and is higher than the main frame. The steel ball storage and retrieval system (4), the connecting pipe display rack (3), the steel ball rerouting system (9), and the inlet pipe connection system (8) are all installed on the auxiliary frame. The connecting pipe display rack (3) is located on one side of the steel ball storage system (4), the steel ball rerouting system (9) is located at the outlet end of the steel ball storage system (4), the inlet pipe system (8) is located at the outlet end of the steel ball rerouting system (9), and the inlet pipe system (8) is used to install the steel pipe to be tested. The steel ball storage and retrieval system (4) includes parallel inclined ball passages (43) with different widths. Each inclined ball passage (43) has an entrance gate at its entrance end and an exit gate at its exit end. The entrance gate and the exit gate are controlled to open and close by an inlet cylinder (41) and an outlet cylinder (42), respectively. Each inclined ball passage (43) has a steel ball counting sensor (44) at its entrance end. The inlet cylinder (41), the outlet cylinder (42), and the steel ball counting sensor (44) are all electrically connected to the control system. The ball changing system (9) includes a ball slide (91) provided at the exit end of all the inclined ball passages (43) and a ball baffle (93) vertically provided outside the ball slide (91) to block the corresponding ball. The ball changing system (9) further includes a changing cylinder (94) and a ball support plate (92). The ball baffle (93) is provided with a horizontal through groove that allows the ball support plate (92) to pass through. The changing cylinder (94) is located outside the ball slide (91). The piston end of the changing cylinder (94) is fixedly connected to the ball support plate (92). The ball support plate (92) is provided with a plurality of limiting semicircular holes corresponding to each of the inclined ball passages (43).

2. The ball-passing test device for automatic cleaning of steel pipes according to claim 1, characterized in that, It also includes a coding system (2), which is located on the side of the auxiliary frame near the connecting pipe display rack (3).

3. The ball-passing test device for automatic cleaning of steel pipes according to claim 1, characterized in that, It also includes an entrance camera (6) installed above the ball changing system (9).

4. The ball-passing test device for automatic cleaning of steel pipes according to claim 1, characterized in that, The inlet pipe system (8) includes a first rotating joint, a second rotating joint and a third rotating joint arranged sequentially from top to bottom. The first rotating joint, the second rotating joint and the third rotating joint are connected to each other by a hose. The steel pipe to be tested is detachably connected to the third rotating joint. The free end of the steel pipe to be tested is connected to the steel ball follow-up collection camera system (7). An automatic air blowing cover device (10) is provided above the first rotating joint.

5. The ball-passing test device for automatic cleaning of steel pipes according to claim 4, characterized in that, The steel ball follow-up collection camera system (7) includes a movable support plate that can move on the main frame, a screw and nut mechanism that drives the movable support plate to move, a steel ball collection box set on the movable support plate, and a steel ball collection container that communicates with the bottom outlet of the steel ball collection box.

6. The ball-passing test device for automatic cleaning of steel pipes according to claim 5, characterized in that, A rubber protective plate is provided on one side of the steel ball collection box, and an exit camera is provided on one side of the movable support plate above the steel ball collection box.

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