CN112924549B

CN112924549B - Ultrasonic detection system

Info

Publication number: CN112924549B
Application number: CN202110177390.XA
Authority: CN
Inventors: 邹昆
Original assignee: Atami Intelligent Equipment Beijing Co ltd
Current assignee: Atami Intelligent Equipment Beijing Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2023-02-10
Anticipated expiration: 2041-02-07
Also published as: CN112924549A

Abstract

The invention relates to an ultrasonic detection system, which comprises a water tank and a portal frame erected on the water tank, wherein a longitudinal moving mechanism is arranged between the portal frame and the water tank, a lifting device is arranged on the portal frame through a transverse moving mechanism, a probe disc is arranged at the lower end of the lifting device, a lifting frame is arranged in the water tank through a driving device, conveying devices distributed at intervals are arranged on the lifting frame, each conveying device comprises a supporting seat, a lifting assembly, a conveying assembly and a clamping assembly, and the supporting seats are fixed on the lifting frame; the lifting assembly comprises a first cylinder, a first guide rod and a lifting plate, the conveying assembly comprises a first wheel frame, a first roller and a first motor, the clamping assembly comprises a switching frame, the switching frame is provided with first pressure supporting devices which are distributed oppositely on two sides of the first roller, and each first pressure supporting device comprises a cylinder frame, a second cylinder, a second guide rod, a second wheel frame and two second rollers. The method has the advantages of strong functionality, good adaptability, safety and reliability.

Description

Ultrasonic detection system

Technical Field

The invention relates to an ultrasonic detection system, in particular to an ultrasonic detection system for flat-bulb steel.

Background

Ultrasonic inspection is to detect internal defects of a metal workpiece by using ultrasonic waves, and is widely applied because the ultrasonic inspection has the advantages of high detection precision and no damage to the workpiece. In order to ensure the reliability of detection, the ultrasonic detection needs to eliminate the gap between the probe and the workpiece. For a workpiece with a regular shape and a small volume, a gap can be eliminated by spraying water between the probe and the workpiece, but for a workpiece with a complex shape and a large volume, such as a flat-bulb steel workpiece, the conventional water spraying mode cannot meet the requirement of ultrasonic detection, and no reliable detection means exists in the field at present.

Disclosure of Invention

The invention aims to provide an ultrasonic detection system which has the advantages of convenience in operation and control, strong functionality, good adaptability, safety and reliability.

In order to solve the problems in the prior art, the invention provides an ultrasonic detection system, which comprises a water tank and a portal frame erected on the water tank, wherein a longitudinal moving mechanism is arranged between the portal frame and the water tank, a lifting device is arranged on the portal frame through a transverse moving mechanism, a probe disc is arranged at the lower end of the lifting device, a lifting frame is arranged in the water tank through a driving device, conveying devices distributed at intervals are arranged on the lifting frame, each conveying device comprises a supporting seat, a lifting assembly, a conveying assembly and a clamping assembly, and the supporting seats are fixed on the lifting frame; the lifting assembly comprises a first air cylinder, a first guide rod and a lifting plate, the first air cylinder is fixed on the supporting seat, the first guide rod penetrates through a first guide sleeve arranged on the supporting seat, and the lifting plate is fixed at the upper ends of the first guide rod and a piston rod of the first air cylinder; the conveying assembly comprises a first wheel frame, a first roller and a first motor, the first wheel frame is fixed on the lifting plate, a transfer shaft is coaxially fixed on the first roller, two ends of the transfer shaft are installed on the first wheel frame through bearings, and the first motor is fixed on the first wheel frame and enables an output shaft of the first motor to be coaxially connected with the transfer shaft; the clamping assembly comprises a switching frame fixed on the lifting plate, the switching frame is provided with first pressure supporting devices which are distributed oppositely on two sides of a first roller, each first pressure supporting device comprises a cylinder frame, a second cylinder, a second guide rod, a second wheel frame and two second rollers, the cylinder frames are fixed on the switching frame, the second cylinders are fixed on the cylinder frames, the second guide rods penetrate through second guide sleeves arranged on the cylinder frames, the second wheel frames are fixedly connected with piston rods of the second guide rods and the second cylinders, and the two second rollers are vertically arranged on the second wheel frames.

Furthermore, the ultrasonic detection system of the invention is characterized in that the probe disc comprises a support frame, the bottom of the support frame is provided with a lower probe assembly, two sides of the support frame are provided with side probe assemblies which are distributed oppositely, two sides of the support frame are also provided with second pressure supporters which are distributed oppositely, and the support frame on the upper side of the second pressure supporters is provided with third pressure supporters which are distributed oppositely; the second pressure supporter comprises a third cylinder, a third guide rod, a third wheel frame and two third rollers, the third cylinder is fixed on the support frame, the third guide rod penetrates through a third guide sleeve arranged on the support frame, the third wheel frame is fixedly connected with the third guide rod and a piston rod of the third cylinder, the two third rollers are vertically arranged on the third wheel frame, and the third rollers are in a spindle shape with two large ends and a small middle part; the third pressure supporting device comprises a fourth cylinder, a fourth guide rod, a fourth wheel frame and two fourth rollers, the fourth cylinder is fixed on the supporting frame, the fourth guide rod penetrates through a fourth guide sleeve arranged on the supporting frame, the fourth wheel frame is fixedly connected with the fourth guide rod and a piston rod of the fourth cylinder, and the two fourth rollers are vertically arranged on the fourth wheel frame.

Furthermore, the invention relates to an ultrasonic detection system, wherein the support frame comprises a mounting seat and a bearing plate positioned on the upper side of the mounting seat, four symmetrically distributed buffers are arranged between the bearing plate and the mounting seat, each buffer comprises an upper flange bearing, a sleeve, a lower flange bearing, a connecting rod and a spring, the upper flange bearing is fixed on the bearing plate, the upper end of the sleeve is connected with a ball head of the upper flange bearing, the lower flange bearing is fixed on the mounting seat, the lower end of the connecting rod is connected with the ball head of the lower flange bearing, the upper end of the connecting rod penetrates through the lower end wall of the sleeve and is provided with a spring seat, and the spring is sleeved on the connecting rod and enables the upper end and the lower end of the spring to be correspondingly pressed on the spring seat and the lower end wall of the sleeve; the lower probe assembly, the side probe assembly, the second pressure supporter and the third pressure supporter are respectively arranged on the mounting seat.

Further, the ultrasonic detection system is characterized in that the mounting seat is provided with symmetrically distributed anti-collision assemblies, each anti-collision assembly comprises an anti-collision frame, an anti-collision sleeve and two sensors, each anti-collision frame is fixed on the mounting seat, each anti-collision sleeve is fixed on each anti-collision frame, each anti-collision sleeve is provided with a channel matched with the flat bulb steel in shape, and the two sensors are correspondingly fixed on two sides of the channel of each anti-collision sleeve and are distributed oppositely.

Furthermore, the ultrasonic detection system of the invention is characterized in that two sides of the lifting frame are respectively provided with roller assemblies which are distributed at intervals and are pressed on the side wall of the water tank, each roller assembly comprises a fifth wheel frame and two fifth rollers arranged on the fifth wheel frame, the positions of the fifth wheel frame corresponding to the two ends of the fifth roller are respectively provided with a front buffer groove and a rear buffer groove, a stop block is arranged between the front buffer groove and the rear buffer groove, the fifth rollers are internally provided with support shafts through bearings, two ends of each support shaft are fixedly provided with symmetrically distributed buffer rods, and the buffer rods are sleeved with pressure springs; the two ends of the supporting shaft are positioned in the corresponding front buffer grooves, the buffer rods penetrate through the corresponding stop blocks, and the two ends of the pressure spring are correspondingly pressed on the supporting shaft and the stop blocks.

Furthermore, the invention relates to an ultrasonic detection system, wherein the bottom of the water tank is provided with first pipe joints distributed at intervals, one side wall of the water tank is provided with second pipe joints and first overflow holes distributed at intervals, the other side wall of the water tank is provided with second overflow holes distributed at intervals, the first overflow holes are higher than the second overflow holes, the second overflow holes are higher than the second pipe joints, the outer side of the water tank is provided with a first overflow box and a second overflow box corresponding to the first overflow holes and the second overflow holes, the first overflow box and the second overflow box are respectively provided with a filter screen, the bottoms of the first overflow box and the second overflow box are respectively provided with a third pipe joint and a fourth pipe joint, the first pipe joints and the fourth pipe joints are mutually communicated through communicating pipelines, the second pipe is connected with the communicating pipelines through circulating pipelines, the circulating pipelines are provided with a water pump, a filter, an ultraviolet sterilizer and a heater, and the third pipe joints are connected with the overflowing pipelines.

Further, the invention relates to an ultrasonic detection system, wherein the lower probe assembly comprises a lower probe, a lower probe clamp and a lower probe frame, the lower probe is clamped on the lower probe clamp, the lower probe clamp is positioned between two side plates of the lower probe frame, the lower probe frame is fixed on the mounting seat, two side plates of the lower probe frame are respectively provided with a vertical first adjusting hole, and a first knob screw which is screwed on the lower probe clamp is arranged in the first adjusting hole; vertical first sliding grooves are respectively formed in the two side plates of the lower probe holder on the two sides of the first adjusting hole, and a first sliding block matched with the first sliding grooves is fixed on the lower probe holder.

Further, the ultrasonic detection system comprises a side probe assembly, a side probe assembly and a side probe frame, wherein the side probe assembly comprises a support plate, a screw rod, a lifting guide rod, a second motor, a side probe clamp and a side probe frame; the side probe holder is clamped on the side probe clamp, the side probe clamp is positioned between two side plates of the side probe frame, the side probe frame is provided with a nut and a lifting guide sleeve which are correspondingly matched with the screw rod and the lifting guide rod, two side plates of the side probe frame are respectively provided with a transverse second adjusting hole, and a second knob screw which is screwed on the side probe clamp is arranged in the second adjusting hole; and two lateral plates of the lateral probe frame are respectively provided with a transverse second sliding chute on two sides of the second adjusting hole, and a second sliding block matched with the second sliding chutes is fixed on the lateral probe clamp.

Furthermore, the invention relates to an ultrasonic detection system, wherein the driving device comprises a fifth cylinder, a guide block, an outer chain wheel, an inner chain wheel and a chain, the fifth cylinder is fixed at the outer side of the water tank, the guide block is fixed at the lower end of a piston rod of the fifth cylinder, the outer chain wheel and the inner chain wheel are correspondingly fixed on the outer side and the inner side of the water tank, one end of the chain is fixed on the outer side of the water tank, and the other end of the chain sequentially bypasses the guide block, the outer chain wheel and the inner chain wheel and is fixedly connected with the lifting frame; the water tank is provided with a through hole for the chain to pass through, and the through hole is higher than the first overflow hole.

Further, the ultrasonic detection system comprises a protective sleeve, a protective cover and a locking ring, wherein the protective sleeve comprises a sleeve part, a neck part and a flange which are connected into a whole, the sleeve part is sleeved on the first motor from the front end and is fixedly connected with the first motor through a screw and a sealing gasket, a skeleton oil seal is arranged between the neck part and the transfer shaft, the flange is fixed on the first wheel carrier, the protective cover is sleeved on the first motor from the rear end, the locking ring is sleeved on the protective sleeve and is in threaded connection with the protective cover, mutually matched limiting ring platforms are arranged between the locking ring and the protective sleeve, and sealing rings are respectively arranged between the protective sleeve and the protective cover and between the locking ring and the protective cover.

Compared with the prior art, the ultrasonic detection system has the following advantages: the invention is provided with a water tank and a portal frame arranged on the water tank, a longitudinal moving mechanism is arranged between the portal frame and the water tank, a lifting device is arranged on the portal frame through a transverse moving mechanism, and a probe disc is arranged at the lower end of the lifting device. The water tank is provided with a lifting frame through a driving device, the lifting frame is provided with conveying devices distributed at intervals, each conveying device comprises a supporting seat, a lifting assembly, a conveying assembly and a clamping assembly, and the supporting seats are fixed on the lifting frame. Let lifting unit set up first cylinder, first guide bar and lifter plate, fix first cylinder on the supporting seat, make first guide bar pass the first uide bushing of setting on the supporting seat to fix the lifter plate in the piston rod upper end of first guide bar and first cylinder. Let conveying assembly set up first wheel carrier, first gyro wheel and first motor, fix first wheel carrier on the lifter plate, coaxial fixed switching axle in first gyro wheel, install the both ends of switching axle on first wheel carrier through the bearing, fix first motor on first wheel carrier and make its output shaft and switching axle coaxial coupling. Let the centre gripping subassembly set up the switching frame of fixing on the lifter plate, make the switching frame set up the first depressor that props of relative distribution in the both sides of first gyro wheel, first depressor that props includes jar frame, the second cylinder, the second guide bar, second wheel carrier and two second gyro wheels, fix jar frame on the switching frame, fix the second cylinder on jar frame, make the second guide bar pass the second uide bushing of setting on jar frame, make the second wheel carrier and the piston rod fixed connection of second guide bar and second cylinder, with two vertical installations of second gyro wheel on the second wheel carrier. Therefore, the ultrasonic detection system is convenient to control, high in functionality, good in adaptability, safe and reliable. During detection, the lifting frame is firstly lifted to a set height through the driving device, and at the moment, the first air cylinder of each conveying device is in an extending state, and the second air cylinder of each conveying device is in a recovering state. Then one end of the flat-bulb steel workpiece is placed on a first roller of a first conveying device, a first motor and a second cylinder of the conveying device are started, and a second roller is pressed against the flat-bulb steel workpiece, at the moment, the flat-bulb steel workpiece can be conveyed to a second conveying device under the rotating action of the first roller, and guiding and positioning are carried out through second rollers on two sides; when the flat-bulb steel workpiece is conveyed to the second conveying device, the first motor and the second cylinder are started, the flat-bulb steel workpiece can be continuously conveyed, and the rest conveying devices are analogized in sequence; and when the flat-bulb steel workpiece completely enters the water tank, stopping the first motors of the conveying devices. Then the lifting frame is lowered to the set position through the driving device, and the flat bulb steel workpiece is underwater. Let probe dish drop under water and move along the flat-bulb steel work piece and can carry out ultrasonic testing afterwards, when probe dish moved a certain conveyer, make this conveyer's second cylinder and first cylinder retrieve to reduce conveying assembly and centre gripping subassembly and make it let out the removal route of probe dish, make its first cylinder and second cylinder return again when probe dish crosses this conveyer. According to the invention, through the arrangement of the lifting assembly, under the coordination of each conveying device, on one hand, a stable supporting effect on the flat-bulb steel workpiece can be achieved, and on the other hand, a moving channel of the probe disc can be quickly opened through lifting, so that the convenience, continuity and integrity of detection are ensured, and the detection efficiency is improved; through the arrangement of the conveying assembly, the flat-bulb steel workpiece can be quickly conveyed and placed under the cooperation of the conveying devices, so that the convenience and the safety of operation are improved; through setting up the centre gripping subassembly, improved the stability and the precision of conveying flat bulb steel work piece, and can make flat bulb steel work piece keep steady state when detecting, improved the reliability and the security that detect.

An ultrasonic inspection system according to the present invention will be described in further detail with reference to the embodiments shown in the drawings.

Drawings

FIG. 1 is a front view of an ultrasonic inspection system of the present invention;

FIG. 2 is a top view of an ultrasonic inspection system of the present invention;

FIG. 3 is a perspective view of an ultrasonic inspection system of the present invention;

FIG. 4 is a front view of a water tank in an ultrasonic testing system of the present invention;

FIG. 5 is a top view of a water tank in an ultrasonic testing system of the present invention;

FIG. 6 is a perspective view of a water tank in an ultrasonic testing system of the present invention;

FIG. 7 is an enlarged view of a portion of the portion A of FIG. 5;

FIG. 8 is a front view of a drive mechanism in an ultrasonic testing system in accordance with the present invention

FIG. 9 is a perspective view of a drive mechanism in an ultrasonic testing system according to the present invention;

FIG. 10 is a perspective view of a crane in an ultrasonic inspection system of the present invention;

FIG. 11 is a front view of a conveyor in an ultrasonic testing system of the present invention;

FIG. 12 is a top view of a conveyor assembly in an ultrasonic testing system according to the present invention;

FIG. 13 is a perspective view of a conveyor assembly in an ultrasonic testing system according to the present invention;

FIG. 14 is a view from the B-B direction in FIG. 12;

FIG. 15 is a front view of a delivery assembly in an ultrasonic testing system of the present invention;

FIG. 16 is a top view of a conveyor assembly in an ultrasonic testing system of the present invention;

FIG. 17 is a perspective view of a delivery assembly of an ultrasonic testing system of the present invention;

FIG. 18 is a view from the C-C direction in FIG. 16;

FIG. 19 is a front view of a roller assembly of an ultrasonic inspection system of the present invention;

FIG. 20 is a right side view of a scroll wheel assembly of an ultrasonic inspection system of the present invention;

FIG. 21 is a perspective view of a scroll wheel assembly of an ultrasonic inspection system of the present invention;

FIG. 22 is a view from direction D-D of FIG. 19;

FIG. 23 is a front view of a probe plate in an ultrasonic inspection system of the present invention;

FIG. 24 is a top view of a probe head disk of an ultrasonic inspection system of the present invention;

FIG. 25 is a left side view of a probe head disk of an ultrasonic inspection system of the present invention;

FIG. 26 is a perspective view of a probe head disk in an ultrasonic inspection system of the present invention;

FIG. 27 is a view from E-E in FIG. 23;

FIG. 28 is a view from direction F-F of FIG. 25;

FIG. 29 is a front view of a bumper in an ultrasonic testing system of the present invention;

FIG. 30 is a view from the direction G-G in FIG. 29;

FIG. 31 is a front view of a bumper assembly in an ultrasonic inspection system of the present invention;

FIG. 32 is a rear elevational view of a bumper assembly of an ultrasonic inspection system of the present invention;

FIG. 33 is a first perspective view of a bumper assembly of an ultrasonic inspection system of the present invention;

FIG. 34 is a second perspective view of a bumper assembly of the ultrasonic inspection system of the present invention;

FIG. 35 is a front view of a second spreader bar of the ultrasonic testing system of the present invention;

FIG. 36 is a perspective view of a second pressure spreader in the ultrasonic testing system of the present invention;

FIG. 37 is a front view of a third spreader in an ultrasonic testing system of the present invention;

FIG. 38 is a perspective view of a third pressure spreader in the ultrasonic testing system of the present invention;

FIG. 39 is a front view of a lower probe assembly of an ultrasonic testing system of the present invention;

FIG. 40 is a perspective view of a lower probe assembly of an ultrasonic testing system of the present invention;

FIG. 41 is a view taken in the direction H-H of FIG. 39;

FIG. 42 is a view from direction I-I of FIG. 39;

FIG. 43 is a front view of a side probe assembly of an ultrasonic inspection system of the present invention;

FIG. 44 is a perspective view of a side probe assembly of an ultrasonic inspection system of the present invention;

FIG. 45 is a view from the direction J-J of FIG. 43;

FIG. 46 is a view taken along line K-K of FIG. 43;

fig. 47 is a view taken along line L-L in fig. 43.

Detailed Description

First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for easy understanding, and do not limit the technical solution and the claimed scope of the present invention.

As shown in fig. 1 to 47, an embodiment of an ultrasonic testing system according to the present invention includes a water tank 1 and a gantry 2 mounted on the water tank 1, wherein a longitudinal movement mechanism is disposed between the gantry 2 and the water tank 1, a lifting device 3 is mounted on the gantry 2 through a transverse movement mechanism, and a probe disc 4 is mounted at a lower end of the lifting device 3. A lifting frame 6 is arranged in the water tank 1 through a driving device 5, conveying devices 7 distributed at intervals are arranged on the lifting frame 6, the conveying devices 7 are provided with a supporting seat 71, a lifting assembly 72, a conveying assembly 73 and a clamping assembly 74, and the supporting seat 71 is fixed on the lifting frame 6. The lifting assembly 72 is provided with a first cylinder 721, a first guide rod 722 and a lifting plate 723, the first cylinder 721 is fixed on the support base 71, the first guide rod 722 passes through a first guide sleeve provided on the support base 71, and the lifting plate 723 is fixed on the upper end of the first guide rod 722 and the piston rod of the first cylinder 721. The transmission assembly 73 includes a first wheel frame 731, a first roller 732, and a first motor 733, the first wheel frame 731 is fixed on the lifting plate 723, a transfer shaft 734 is coaxially fixed in the first roller 732, both ends of the transfer shaft 734 are mounted on the first wheel frame 731 through bearings, the first motor 733 is fixed on the first wheel frame 731, and an output shaft thereof is coaxially connected with the transfer shaft 734. The clamping assembly 74 is provided with a switching frame 741 fixed on the lifting plate 723, and the switching frame 741 is provided with first pressure supporters distributed oppositely on two sides of the first roller 732; the first pressure supporter is provided with a cylinder frame 742, a second cylinder 743, a second guide rod 744, a second wheel frame 745 and two second rollers 746, the cylinder frame 742 is fixed on the switching frame 741, the second cylinder 743 is fixed on the cylinder frame 742, the second guide rod 744 passes through a second guide sleeve arranged on the cylinder frame 742, the second wheel frame 745 is fixedly connected with the second guide rod 744 and a piston rod of the second cylinder 743, and the two second rollers 746 are vertically arranged on the second wheel frame 745.

The ultrasonic detection system is convenient to control, high in functionality, good in adaptability, safe and reliable. In the detection, the lifting frame 6 is first raised to a predetermined height by the driving device 5, and at this time, the first air cylinder 721 and the second air cylinder 743 of each of the conveyors 7 are in the extension state and the recovery state. Then, one end of the flat-bulb steel workpiece 9 is placed on the first roller 732 of the first conveying device 7, the first motor 733 and the second cylinder 743 of the conveying device are started, and the second roller 746 is pressed against the flat-bulb steel workpiece 9, at this time, the flat-bulb steel workpiece 9 can be conveyed to the second conveying device 7 under the rotating action of the first roller 732, and guiding and positioning are carried out through the second rollers 746 on the two sides; when the flat-bulb steel workpiece 9 is conveyed to the second conveying device 7, the first motor 733 and the second air cylinder 743 are started, the flat-bulb steel workpiece can be continuously conveyed to the next conveying device 7, and the rest conveying devices 7 are analogized in sequence; when the bulb-shaped steel workpiece completely enters the water tank, the first motor 733 of each conveyor 7 is stopped. The crane 6 is then lowered by the drive 5 into the set position and the bulb-to-slab workpiece 9 is submerged. The ultrasonic inspection is then carried out by lowering the probe plate 4 under water and moving it along the bulb steel workpiece 9, and when the probe plate 4 moves to a certain transfer device 7, the second cylinder 743 and the first cylinder 721 of the transfer device 7 are retracted to lower the transfer assembly 73 and the holding assembly 74 away from the path of movement of the probe plate 4, and when the probe plate 4 passes over the transfer device 7, the first cylinder 721 and the second cylinder 743 thereof are returned. According to the invention, through the arrangement of the lifting assembly 72, under the coordination of each conveying device 7, on one hand, the flat-bulb steel workpiece 9 can be stably supported, and on the other hand, the moving path of the probe disc 4 can be quickly opened through lifting, so that the convenience, continuity and integrity of detection are ensured, and the detection efficiency is improved; by arranging the conveying assembly 73, the flat-bulb steel workpiece 9 can be quickly conveyed and placed under the cooperation of the conveying devices 7, so that the convenience and the safety of operation are improved; by arranging the clamping assembly 74, the stability and the precision of conveying the flat-bulb steel workpiece 9 are improved, the flat-bulb steel workpiece 9 can be kept in a stable state during detection, and the reliability and the safety of detection are improved. It should be noted that, in practical applications, in order to simplify the manufacturing process and improve the convenience of disassembly and assembly, the crane 6 is usually made in a sectional manner and used in a combined manner.

As an optimized solution, as shown in fig. 23 to 34, the present embodiment adopts the following structure for the probe head plate 4: 2, a supporting frame 41 is arranged, a lower probe assembly 42 is arranged at the bottom of the supporting frame 41, side probe assemblies 43 which are distributed oppositely are arranged at two sides of the supporting frame 41, second pressure supporters 44 which are distributed oppositely are arranged at two sides of the supporting frame 41, and third pressure supporters 45 which are distributed oppositely are arranged on the supporting frame 41 above the second pressure supporters 44. The second pressure supporter 44 is provided with a third cylinder 441, a third guide rod 442, a third wheel frame 443 and two third rollers 444, the third cylinder 441 is fixed on the support frame 41, the third guide rod 442 passes through a third guide sleeve arranged on the support frame 41, the third wheel frame 443 is fixedly connected with the third guide rod 442 and a piston rod of the third cylinder 441, the two third rollers 444 are vertically arranged on the third wheel frame 443, and the third rollers 444 are in a spindle-shaped structure with two large ends and a small middle. The third pressure supporter 45 is provided with a fourth cylinder 451, a fourth guide bar 452, a fourth wheel carrier 453 and two fourth rollers 454, the fourth cylinder 451 is fixed on the support frame 41, the fourth guide bar 452 passes through a fourth guide sleeve arranged on the support frame 41, the fourth wheel carrier 453 is fixedly connected with the fourth guide bar 452 and the piston rod of the fourth cylinder 451, and the two fourth rollers 454 are vertically arranged on the fourth wheel carrier 453. The probe disc 4 has the advantages of compact structure, strong adaptability, high detection precision, safety and reliability. In practical application, the probe disc 4 is sleeved on the flat-bulb steel workpiece, wherein the third rollers 444 distributed relatively are correspondingly supported and pressed on two sides of the bottom of the flat-bulb steel workpiece, the fourth rollers 454 distributed relatively are correspondingly supported and pressed on two sides of the upper half of the flat-bulb steel workpiece, when the probe disc 4 moves along the flat-bulb steel workpiece, ultrasonic detection can be carried out on the bottom of the flat-bulb steel workpiece through the lower probe assembly 42, and ultrasonic detection can be carried out on the vertical part of the flat-bulb steel workpiece through the side probe assembly 43. Through the arrangement of the second pressure supporter 44 and the third pressure supporter 45 which are distributed oppositely, the third roller 444 is in a spindle structure and is pressed on two sides of the bottom of the flat-bulb steel workpiece, and the fourth roller 454 is pressed on two sides of the upper half of the flat-bulb steel workpiece, on one hand, the moving stability of the probe disc 4 is improved, on the other hand, the lower probe assembly 42, the side probe assembly 43 and the flat-bulb steel workpiece can keep stable position relation, and the detection standardization and reliability are improved. In addition, the supporting and clamping structure of the second supporting and pressing device 44 and the third supporting and pressing device 45 is adopted, so that the device can be suitable for flat-bulb steel workpieces with different specifications, and the adaptability is improved. It should be noted that, in practical applications, in order to improve the stability and reliability of the bracing and clamping, the present invention generally provides two pairs of the second bracing device 44 and the third bracing device 45.

As an optimized solution, the present embodiment adopts the following structure for the supporting frame 41: the damper comprises an installation seat 411 and a bearing plate 412 positioned on the upper side of the installation seat 411, wherein four symmetrically distributed dampers 413 are arranged between the bearing plate 412 and the installation seat 411, and an upper flange bearing 4131, a sleeve 4132, a lower flange bearing 4133, a connecting rod 4134 and a spring 4135 are arranged on the dampers 413. The upper flange bearing 4131 is fixed on the bearing plate 412, the upper end of the sleeve 4132 is connected with the ball head of the upper flange bearing 4131, the lower flange bearing 4133 is fixed on the mounting seat 411, the lower end of the connecting rod 4134 is connected with the ball head of the lower flange bearing 4133, the upper end of the connecting rod 4134 penetrates through the lower end wall of the sleeve 4132 and is provided with the spring seat 4136, the spring 4135 is sleeved on the connecting rod 4134, and the upper end and the lower end of the spring 4135 are correspondingly pressed on the spring seat 4136 and the lower end wall of the sleeve 4132. Wherein, the lower probe assembly 42, the side probe assembly 43, the second pressure supporter 44 and the third pressure supporter 45 are respectively arranged on the mounting seat 411. When the support frame 41 with the structure is deformed when encountering a flat-bulb steel workpiece in the detection process, the elastic buffering and deviation effects of the four buffers 413 can enable the probe disc 4 to adapt to the deformation of the flat-bulb steel workpiece, and the functionality, the practicability and the reliability of the system are enhanced. As an optimized scheme, the crash module 46 is further disposed on the mounting seat 411, the crash module 46 includes a crash frame 461, a crash sleeve 462, and two sensors 463, wherein the crash frame 461 is fixed on the mounting seat 411, the crash sleeve 462 is fixed on the crash frame 461, the crash sleeve 462 is provided with a channel 4621 matching with the flat bulb steel in shape, and the two sensors 463 are correspondingly fixed on two sides of the channel 4621 of the crash sleeve 462 and are distributed oppositely. The arrangement can avoid the collision of the flat-bulb steel workpiece with each functional component in the detection process through the anti-collision frame 461 and the anti-collision sleeve 462, thereby improving the safety; the position of the flat bulb steel workpiece can be accurately determined by detecting the flat bulb steel workpiece by the sensor 463 so as to control the second and

third stretchers

44 and 45.

As an optimized scheme, as shown in fig. 10 and fig. 19 to 22, the roller assemblies 8 which are distributed at intervals and are pressed on the side wall of the water tank 1 are respectively arranged on two sides of the lifting frame 6 in the embodiment. The roller wheel assembly 8 is provided with a fifth wheel frame 81 and two fifth rollers 82 mounted on the fifth wheel frame 81, the fifth wheel frame 81 is provided with a front buffer groove 811 and a rear buffer groove 812 at positions corresponding to both ends of the fifth roller 82, respectively, a stopper 813 is formed between the front buffer groove 811 and the rear buffer groove 812, a support shaft 83 is mounted on the fifth roller 82 through a bearing, buffer rods 84 symmetrically distributed are fixed to both ends of the support shaft 83, and a pressure spring 85 is sleeved on the buffer rods 84. The two ends of the supporting shaft 83 are located in the corresponding front buffer grooves 811, the buffer rod 84 passes through the corresponding stopper 813, and the two ends of the compression spring 85 are correspondingly pressed against the supporting shaft 83 and the stopper 813. According to the structure, the roller assemblies 8 are arranged and are pressed on the side wall of the water tank 1, so that the lifting stability of the lifting frame 6 is improved, the disturbance to water can be effectively reduced, and the reliability of detection data is improved; through setting up back shaft 83, buffer beam 84 and pressure spring 85 strengthened fifth gyro wheel 82 and basin 1 complex compactness, can make fifth gyro wheel 82 roof pressure all the time on basin 1 in the lift in-process, strengthened the stationarity of going up and down and to the adaptability of basin 1, and can effectively avoid the slope of crane 6.

As an optimized solution, as shown in fig. 1 to 7, in the present embodiment, first pipe joints 11 are provided at intervals at the bottom of the water tank 1, second pipe joints 12 and first overflow holes are provided at intervals at one side wall of the water tank 1, second overflow holes 13 are provided at intervals at the other side wall of the water tank 1, the first overflow holes are higher than the second overflow holes 13, the second overflow holes 13 are higher than the second pipe joints 12, first overflow tanks 14 and second overflow tanks corresponding to the first overflow holes and the second overflow holes 13 are provided at the outer side of the water tank 1, filter screens are provided in the first overflow tanks 14 and the second overflow tanks, respectively, third pipe joints and fourth pipe joints are provided at the bottoms of the first overflow tanks 14 and the second overflow tanks, the first pipe joints 11 and the fourth pipe joints are communicated with each other through a communication pipe 15, the second pipe joints 12 are connected to the communication pipe 15 through a circulation pipe 16, the third overflow pipe joints 17 are connected, and a water pump 16, a water pump 161, a water pump 162, a sterilizer 164 and a sterilizer are provided on the circulation pipe 16. When the structure is arranged to fill water into the water tank 1, redundant water can be drained through the first overflow hole, the first overflow tank 14 and the overflow pipeline 17, so that the constant water volume is kept in the water tank 1, and the standardization and reliability of detection are improved; in the lifting and detecting processes of the lifting frame 6, water overflowing from the second overflow hole 13 flows back to the water tank through the second overflow box, the communication pipeline 15 and the first pipe joint 11, so that water loss is avoided, water disturbance is reduced, and stability and reliability of detection are guaranteed; when the water in the water tank needs to be purified, the water pump 161 is started, and corresponding treatment can be performed through the filter 162, the ultraviolet sterilizer 163 and the heater 164, so that the functionality and the practicability are enhanced.

As a specific embodiment, as shown in fig. 39 to 42, the present invention adopts the following structure for the lower probe assembly 42: the device comprises a lower probe 421, a lower probe clamp 422 and a lower probe frame 423, wherein the lower probe 421 is clamped on the lower probe clamp 422, the lower probe clamp 422 is positioned between two side plates of the lower probe frame 423, the lower probe frame 423 is fixed on a mounting seat 411, the two side plates of the lower probe frame 423 are respectively provided with a vertical first adjusting hole, and a first knob screw 424 which is screwed on the lower probe clamp 422 is arranged in the first adjusting hole; two side plates of the lower probe frame 423 are respectively provided with a vertical first sliding groove at two sides of the first adjusting hole, and a first sliding block 4221 matched with the first sliding groove is fixed on the lower probe clamp 422. The lower probe assembly 42 with the structure has the advantages of simple structure, convenience in disassembly and assembly and flexibility in adjustment, and the technical purpose of adjusting the lower probe 421 can be achieved by loosening the first knob screw 424 and sliding along the first adjusting hole, so that the lower probe assembly is suitable for flat-bulb steel workpieces with different specifications. As a specific embodiment, as shown in fig. 43 to 47, the present invention adopts the following structure for the side probe unit 43: comprises a bracket plate 431, a lead screw 432, a lifting guide rod 433, a second motor 434, a side probe 435, a side probe clamp 436 and a side probe holder 437. The support plate 431 is fixed on the mounting seat 411, the upper end and the lower end of the support plate 431 are correspondingly provided with an upper bearing seat 4311 and a lower bearing seat 4312, the upper end and the lower end of the lead screw 432 are correspondingly arranged on the upper bearing seat 4311 and the lower bearing seat 4312 through bearings, the upper end of the lead screw 432 is fixed with a driven wheel 4321, the upper end and the lower end of the lifting guide rod 433 are correspondingly fixed on the upper bearing seat 4311 and the lower bearing seat 4312, the second motor 434 is fixed on the support plate 431, the output shaft of the second motor 434 is fixed with a driving wheel 4341, and a synchronous belt 4342 is arranged between the driving wheel 4341 and the driven wheel 4321; the side probe 435 is clamped on the side probe clamp 436, the side probe clamp 436 is positioned between two side plates of a side probe frame 437, the side probe frame 437 is provided with a nut 4371 and a lifting guide sleeve 4372 which are correspondingly matched with the screw shaft 432 and the lifting guide rod 433, two side plates of the side probe frame 437 are respectively provided with a transverse second adjusting hole, and a second knob screw 438 which is screwed on the side probe clamp 436 is arranged in each second adjusting hole; two lateral plates of the lateral probe holder 437 are respectively provided with a transverse second sliding chute on two sides of the second adjusting hole, and a second slider 4361 matched with the second sliding chute is fixed on the lateral probe clamp 436. The side probe assembly 43 with the structure has the advantages of simple structure, convenience in disassembly and assembly, flexibility in adjustment and strong functionality, and the technical purpose of adjusting the side probe 435 can be achieved by loosening the second knob screw 438 and sliding along the second adjusting hole, so that the side probe assembly is suitable for flat-bulb steel workpieces with different specifications. When the flat-bulb steel workpiece is large in specification and cannot be detected in a single row, the probe disc 4 is made to move back and forth at two ends of the flat-bulb steel workpiece, and the side probe 435 is made to move by one detection position through the second motor 434 when the detection is finished in each row, so that the detection of the large-specification flat-bulb steel workpiece can be finished, and the functionality, the adaptability and the practicability are enhanced.

As a specific embodiment, as shown in fig. 1 to 3, 8 and 9, the driving device 5 of the present invention is provided with a fifth cylinder 51, a guide block 52, an outer chain wheel 53, an inner chain wheel 54 and a chain 55, wherein the fifth cylinder 51 is fixed on the outer side of the water tank 1, the guide block 52 is fixed on the lower end of the piston rod of the fifth cylinder 51, the outer chain wheel 53 and the inner chain wheel 54 are correspondingly fixed on the outer side and the inner side of the water tank 1, one end of the chain 55 is fixed on the outer side of the water tank 1, and the other end of the chain 55 sequentially bypasses the guide block 52, the outer chain wheel 53 and the inner chain wheel 54 and is fixedly connected with the lifting frame 6; the water tank 1 is provided with a through hole for the chain 55 to pass through, and the through hole is higher than the first overflow hole. The driving device 5 has the advantages of simple structure, convenient control and large lifting amplitude, and the lifting frame 6 can realize the lifting purpose by controlling the extension and the recovery of the piston rod of the fifth air cylinder 51, and is favorable for reducing the height of the water tank 1. It should be noted that, in order to improve the structure and the stability of the lifting, the present invention generally arranges two sets of the guide block 52, the outer chain wheel 53, the inner chain wheel 54 and the chain 55 of the driving device 5 side by side, and arranges a protective cover at a position corresponding to the fifth cylinder 51 to achieve the protection effect.

As a specific embodiment, the present invention also provides the transfer assembly 73 with a shield 735, a shield 736, and a locking ring 737, as shown in fig. 15-18. The protection cover 735 is provided with a sleeve part 7351, a neck part 7352 and a flange 7353 which are connected into a whole, the sleeve part 7351 is sleeved on the first motor 733 from the front end and is fixedly connected with the first motor 733 through a screw and a gasket, a skeleton oil seal 738 is provided between the neck part 7352 and the adapter shaft 734, the flange 7353 is fixed on the first wheel frame 731, the protection cover 736 is sleeved on the first motor 733 from the rear end, and the locking ring 737 is sleeved on the protection cover 735 and is in threaded connection with the protection cover 736. Wherein, be equipped with the spacing ring platform of mutually supporting between locking ring 737 and the lag 735, be equipped with the sealing washer between lag 735 and the protective cover 736 and between locking ring 737 and protective cover 736 respectively. This structural arrangement improves the waterproof performance of the first motor 733, enhancing the safety reliability. It should be noted that in practical applications, the present invention further provides a threading hole on the protecting cover 736 for threading a cable connected to a motor, and a waterproof joint is provided in the threading hole to ensure the sealing performance of the inner space.

The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.

Claims

1. An ultrasonic detection system comprises a water tank (1) and a portal frame (2) erected on the water tank (1), wherein a longitudinal moving mechanism is arranged between the portal frame (2) and the water tank (1), a lifting device (3) is installed on the portal frame (2) through a transverse moving mechanism, and a probe disc (4) is installed at the lower end of the lifting device (3), and is characterized in that a lifting frame (6) is installed in the water tank (1) through a driving device (5), conveying devices (7) distributed at intervals are arranged on the lifting frame (6), each conveying device (7) comprises a supporting seat (71), a lifting assembly (72), a conveying assembly (73) and a clamping assembly (74), and the supporting seats (71) are fixed on the lifting frame (6); the lifting assembly (72) comprises a first air cylinder (721), a first guide rod (722) and a lifting plate (723), the first air cylinder (721) is fixed on the supporting seat (71), the first guide rod (722) penetrates through a first guide sleeve arranged on the supporting seat (71), and the lifting plate (723) is fixed at the upper ends of a piston rod of the first guide rod (722) and the first air cylinder (721); the transmission component (73) comprises a first wheel carrier (731), a first roller (732) and a first motor (733), the first wheel carrier (731) is fixed on the lifting plate (723), the first roller (732) is coaxially fixed with a transfer shaft (734), two ends of the transfer shaft (734) are mounted on the first wheel carrier (731) through bearings, and the first motor (733) is fixed on the first wheel carrier (731) and enables an output shaft of the first motor to be coaxially connected with the transfer shaft (734); the clamping assembly (74) comprises a switching frame (741) fixed on a lifting plate (723), the switching frame (741) is provided with first pressure supporters which are distributed oppositely on two sides of a first roller (732), each first pressure supporter comprises a cylinder frame (742), a second cylinder (743), a second guide rod (744), a second wheel frame (745) and two second rollers (746), the cylinder frames (742) are fixed on the switching frame (741), the second cylinders (743) are fixed on the cylinder frames (742), the second guide rods (744) penetrate through second guide sleeves arranged on the cylinder frames (742), the second wheel frames (745) are fixedly connected with piston rods of the second guide rods (744) and the second cylinders (743), and the two second rollers (746) are vertically installed on the second wheel frames (745).

2. The ultrasonic detection system according to claim 1, wherein the probe disc (4) comprises a support frame (41), a lower probe assembly (42) is arranged at the bottom of the support frame (41), side probe assemblies (43) which are distributed oppositely are arranged at two sides of the support frame (41), second pressure supporters (44) which are distributed oppositely are also arranged at two sides of the support frame (41), and third pressure supporters (45) which are distributed oppositely are arranged on the support frame (41) at the upper side of the second pressure supporters (44); the second pressure supporter (44) comprises a third cylinder (441), a third guide rod (442), a third wheel frame (443) and two third rollers (444), the third cylinder (441) is fixed on the support frame (41), the third guide rod (442) penetrates through a third guide sleeve arranged on the support frame (41), the third wheel frame (443) is fixedly connected with the third guide rod (442) and a piston rod of the third cylinder (441), the two third rollers (444) are vertically arranged on the third wheel frame (443), and the third rollers (444) are in a spindle shape with two large ends and a small middle; the third pressure supporter (45) comprises a fourth cylinder (451), a fourth guide rod (452), a fourth wheel frame (453) and two fourth rollers (454), the fourth cylinder (451) is fixed on the supporting frame (41), the fourth guide rod (452) penetrates through a fourth guide sleeve arranged on the supporting frame (41), the fourth wheel frame (453) is fixedly connected with the fourth guide rod (452) and a piston rod of the fourth cylinder (451), and the two fourth rollers (454) are vertically installed on the fourth wheel frame (453).

3. The ultrasonic detection system as claimed in claim 2, wherein the support frame (41) comprises a mounting seat (411) and a bearing plate (412) at the upper side of the mounting seat (411), four symmetrically distributed buffers (413) are arranged between the bearing plate (412) and the mounting seat (411), each buffer (413) comprises an upper flange bearing (4131), a sleeve (4132), a lower flange bearing (4133), a connecting rod (4134) and a spring (4135), the upper flange bearing (4131) is fixed on the bearing plate (412), the upper end of the sleeve (4132) is connected with the ball head of the upper flange bearing (4131), the lower flange bearing (4133) is fixed on the mounting seat (411), the lower end of the connecting rod (4134) is connected with the ball head of the lower flange bearing (4133), the upper end of the connecting rod (4134) penetrates through the lower end wall of the sleeve (4132) and is provided with the spring seat (4136), and the spring (4135) is sleeved on the connecting rod (4134) and enables the upper end and lower end of the spring seat (4132) to be correspondingly pressed on the upper end wall of the sleeve (4132) and the lower end wall of the sleeve (4132); the lower probe assembly (42), the side probe assembly (43), the second pressure supporter (44) and the third pressure supporter (45) are respectively arranged on the mounting seat (411).

4. An ultrasonic testing system according to claim 3, wherein the mount (411) is provided with symmetrically distributed anti-collision assemblies (46), each anti-collision assembly (46) comprises an anti-collision frame (461), an anti-collision sleeve (462) and two sensors (463), the anti-collision frames (461) are fixed on the mount (411), the anti-collision sleeves (462) are fixed on the anti-collision frames (461), the anti-collision sleeves (462) are provided with channels (4621) matched with the flat-bulb steel in shape, and the two sensors (463) are correspondingly fixed on two sides of the channels (4621) of the anti-collision sleeves (462) and are distributed oppositely.

5. The ultrasonic detection system according to claim 4, wherein the roller assemblies (8) which are distributed at intervals and are pressed against the side wall of the water tank (1) are respectively installed on two sides of the lifting frame (6), each roller assembly (8) comprises a fifth wheel frame (81) and two fifth rollers (82) installed on the fifth wheel frame (81), a front buffer groove (811) and a rear buffer groove (812) are respectively arranged at positions corresponding to two ends of the fifth wheel frame (81) and the fifth rollers (82), a stopper (813) is arranged between the front buffer groove (811) and the rear buffer groove (812), a support shaft (83) is installed in each fifth roller (82) through a bearing, symmetrically distributed buffer rods (84) are fixed at two ends of the support shaft (83), and a compression spring (85) is sleeved on each buffer rod (84); two ends of the supporting shaft (83) are positioned in the corresponding front buffer grooves (811), the buffer rods (84) penetrate the corresponding stoppers (813), and two ends of the pressure spring (85) are correspondingly pressed on the supporting shaft (83) and the stoppers (813).

6. The ultrasonic detection system according to claim 5, wherein the bottom of the water tank (1) is provided with first pipe joints (11) distributed at intervals, one side wall of the water tank (1) is provided with second pipe joints (12) and first overflow holes distributed at intervals, the other side wall of the water tank (1) is provided with second overflow holes (13) distributed at intervals, the first overflow holes are higher than the second overflow holes (13), the second overflow holes (13) are higher than the second pipe joints (12), the outer side of the water tank (1) is provided with first overflow boxes (14) and second overflow boxes corresponding to the first overflow holes and the second overflow holes (13), the first overflow boxes (14) and the second overflow boxes are respectively provided with filter screens, the bottoms of the first overflow boxes (14) and the second overflow boxes are correspondingly provided with third pipe joints and fourth pipe joints, the first pipe joints (11) and the fourth pipe joints are communicated with each other through a communication pipeline (15), the second pipe joints (12) are connected with the communication pipeline (15) through a circulation pipeline (16), the water pump (161), and the sterilizing pipeline (17) are connected with the sterilizing pipeline (163).

7. The ultrasonic testing system of claim 6, wherein the lower probe assembly (42) comprises a lower probe (421), a lower probe clamp (422) and a lower probe holder (423), the lower probe (421) is clamped on the lower probe clamp (422), the lower probe clamp (422) is located between two side plates of the lower probe holder (423), the lower probe holder (423) is fixed on the mounting seat (411), two side plates of the lower probe holder (423) are respectively provided with a vertical first adjusting hole, and a first knob screw (424) which is screwed on the lower probe clamp (422) is arranged in the first adjusting hole; two side plates of the lower probe frame (423) are also respectively provided with a vertical first sliding groove on two sides of the first adjusting hole, and a first sliding block (4221) matched with the first sliding groove is fixed on the lower probe clamp (422).

8. The ultrasonic detection system of claim 6, wherein the side probe assembly (43) comprises a support plate (431), a lead screw (432), a lifting guide rod (433), a second motor (434), a side probe (435), a side probe clamp (436) and a side probe holder (437), the support plate (431) is fixed on the mounting seat (411), the upper end and the lower end of the support plate (431) are correspondingly provided with an upper bearing seat (4311) and a lower bearing seat (4312), the upper end and the lower end of the lead screw (432) are correspondingly mounted on the upper bearing seat (4311) and the lower bearing seat (4312) through bearings, the upper end of the lead screw (432) is fixed with a driven wheel (4321), the upper end and the lower end of the lifting guide rod (433) are correspondingly fixed on the upper bearing seat (4311) and the lower bearing seat (4312), the second motor (434) is fixed on the support plate (431), an output shaft of the second motor (434) is fixed with a driving wheel (4341), and a synchronous belt (4342) is arranged between the driven wheel (4341) and the driven wheel (4321); the side probe (435) is clamped on the side probe clamp (436), the side probe clamp (436) is positioned between two side plates of a side probe frame (437), the side probe frame (437) is provided with a nut (4371) and a lifting guide sleeve (4372) which are correspondingly matched with the screw rod (432) and the lifting guide rod (433), two side plates of the side probe frame (437) are respectively provided with a transverse second adjusting hole, and a second knob screw (438) which is screwed on the side probe clamp (436) is arranged in each second adjusting hole; two lateral plates of the lateral probe frame (437) are respectively provided with a transverse second sliding chute at two sides of the second adjusting hole, and a second sliding block (4361) matched with the second sliding chute is fixed on the lateral probe clamp (436).

9. The ultrasonic detection system according to claim 6, wherein the driving device (5) comprises a fifth cylinder (51), a guide block (52), an outer chain wheel (53), an inner chain wheel (54) and a chain (55), the fifth cylinder (51) is fixed on the outer side of the water tank (1), the guide block (52) is fixed at the lower end of a piston rod of the fifth cylinder (51), the outer chain wheel (53) and the inner chain wheel (54) are correspondingly fixed on the outer side and the inner side of the water tank (1), one end of the chain (55) is fixed on the outer side of the water tank (1), and the other end of the chain (55) sequentially bypasses the guide block (52), the outer chain wheel (53) and the inner chain wheel (54) and is fixedly connected with the lifting frame (6); the water tank (1) is provided with a through hole for the chain (55) to pass through, and the through hole is higher than the first overflow hole.

10. An ultrasonic testing system according to claim 6, wherein the transmission assembly (73) further comprises a protective sleeve (735), a protective cover (736) and a locking ring (737), the protective sleeve (735) comprises a sleeve portion (7351), a neck portion (7352) and a flange (7353) which are connected as a whole, the sleeve portion (7351) is sleeved on the first motor (733) from the front end and is fixedly connected with the first motor (733) through a bolt and a gasket, a frame oil seal (738) is arranged between the neck portion (7352) and the adapting shaft (734), the flange (7353) is fixed on the first wheel frame (731), the protective cover (736) is sleeved on the first motor (733) from the rear end, the locking ring (737) is sleeved on the protective sleeve (735) and is in threaded connection with the protective cover (736), a mutually cooperating limit ring stand is arranged between the locking ring (737) and the protective cover (735), and a sealing ring (736) is arranged between the protective cover (737) and the protective cover (736), respectively.