A wear ultrasonic detection device and a detection method for piston assembly testing

Abstract

The present invention relates to the field of ultrasonic detection technology, and discloses a wear ultrasonic detection device and a detection method for piston assembly testing, wherein the device comprises a device body, a control console, a lifting connection platform and a detection base, wherein the control console is fixedly installed on the top of the device body, the lifting connection platform is fixedly installed on the top of the device body, the detection base is fixedly installed on the top of the device body, and a connecting mechanism is installed on the bottom of the lifting connection platform. When the piston assembly is detected, the lifting connection sleeve of the present invention can connect the piston rod and the detection connecting rod of the piston assembly, and when the lifting connection platform drives the connecting mechanism to move up and down, the piston rod and the detection connecting rod of the piston assembly can be driven to move up and down synchronously, so that during the detection process, the ultrasonic detection head follows the synchronous movement of the piston rod of the piston assembly throughout the whole process, which can not only detect the working process of the piston assembly but also improve the accuracy of ultrasonic detection.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic detection, in particular to a wear ultrasonic detection device and a detection method for piston component testing. Background Art

[0002] Ultrasonic waves have very little transmission loss in solid media. When encountering a solid-gas interface, they will be reflected or refracted. The reflected waveform can be used to detect defects such as pores and cracks in the workpiece.

[0003] Chinese patent CN116973446B discloses an ultrasonic flaw detection device, which is convenient for extending the device into the interior of a tank body by providing a first telescopic rod and a second telescopic rod, and the lengths of the first telescopic rod and the second telescopic rod can be adjusted according to the length of the tank body, so that the weld on the tank body can be detected from the inside of the tank body.

[0004] In the above patents and prior art, the ultrasonic detection head needs to maintain contact with the workpiece during the ultrasonic detection process, which causes wear on the surface of the ultrasonic detection head during long-term operation, affecting the detection accuracy. When the coupling agent is applied to the surface of the workpiece for detection, the uneven application of the coupling agent will affect the transmission loss of the ultrasonic wave, and the distance between the ultrasonic detection head and the workpiece will affect the detection accuracy. In addition, it is difficult to detect minor defects in the piston assembly when the piston assembly is fixed during detection. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wear ultrasonic detection device and a detection method for a piston assembly test.

[0006] A wear ultrasonic detection device and a detection method for piston assembly testing, comprising a device body, a control console, a lifting connection platform and a detection base, wherein the control console is fixedly installed on the top of the device body, the lifting connection platform is fixedly installed on the top of the device body, the detection base is fixedly installed on the top of the device body, a connecting mechanism is installed on the bottom of the lifting connection platform, a detection mechanism is installed inside the detection base, and a coupling agent applying mechanism is installed inside the detection mechanism;

[0007] The lifting connection platform is installed on the left side of the console, and the lifting connection platform is located directly above the detection base. The lifting connection platform can drive the connection mechanism to move up and down above the detection mechanism;

[0008] The detection mechanism comprises a coupling agent storage bin, a coupling agent sleeve and a piston detection seat. When the piston detection seat descends, the coupling agent in the coupling agent sleeve can be squeezed into the coupling agent application mechanism. When the piston detection seat rises, the coupling agent in the coupling agent storage bin can be sucked into the coupling agent sleeve.

[0009] After the piston assembly is placed on the piston detection seat, the position of the piston detection seat is lowered. When the position of the piston detection seat is lowered, the coupling agent inside the coupling agent sleeve can be squeezed into the coupling agent coating mechanism. When the position of the piston detection seat is lowered, the position of the piston assembly is also lowered. The coupling agent coating mechanism can coat the coupling agent on the surface of the piston assembly when the position of the piston assembly is lowered. The connecting mechanism can be connected to the piston rod of the piston assembly. The lifting connecting platform can drive the connecting mechanism to move up and down. When the connecting mechanism moves up and down, it can drive the piston to perform a working process. The detection mechanism can perform ultrasonic flaw detection during the working process of the piston.

[0010] Preferably, the connection mechanism comprises a lifting connection plate, a lifting connection sleeve is slidably mounted inside the lifting connection plate, a sleeve clamp is fixedly mounted outside the lifting connection sleeve, a sleeve sliding rod is slidably mounted inside the lifting connection sleeve, a sliding rod handle is fixedly connected to one end of the sleeve sliding rod, and a sliding rod clamp is rotatably connected to the other end of the sleeve sliding rod;

[0011] The exterior of the lifting connection sleeve can pass through the piston rod of the piston assembly and be connected thereto.

[0012] Preferably, an opening is provided on the outside of the lifting connection sleeve, and the sliding rod block passes through the opening on the outside of the lifting connection sleeve and extends to the outside of the lifting connection sleeve;

[0013] The exterior of the lifting connection sleeve is clamped with the exterior of the lifting connection plate through a sleeve clamping block and a sliding rod clamping block respectively.

[0014] Preferably, the detection mechanism comprises a detection body, the detection body is fixedly mounted inside the detection base, a coupling agent storage bin is fixedly mounted inside the detection body, a detection connecting rod is slidably mounted inside the detection body, a detection connecting ring is fixedly connected to the bottom of the detection connecting rod, an ultrasonic detection head is fixedly mounted outside the detection connecting ring, a coupling agent sleeve is fixedly connected to the outside of the coupling agent storage bin, a spring mounting seat is fixedly mounted on the outside of the coupling agent sleeve, a detection seat spring is fixedly connected to the top of the spring mounting seat, a piston detection seat is connected to the movable end of the detection seat spring, a detection seat connecting rod is fixedly connected to the bottom of the piston detection seat, a coupling agent piston is fixedly connected to the bottom of the detection seat connecting rod, a fixed dividing block is fixedly mounted inside the coupling agent sleeve, and a dividing sleeve is slidably mounted inside the coupling agent sleeve.

[0015] Preferably, the detection connection ring is slidably installed inside the detection body through a detection connection rod, a circular ring through-hole is provided on the top of the detection connection rod, and the lifting connection sleeve can pass through the circular ring through-hole on the top of the detection connection rod;

[0016] A plurality of ultrasonic detection heads are fixedly mounted on the outside of the detection connection ring, and the inner sides of the plurality of ultrasonic detection heads are in contact with the outer sides of the piston detection seat.

[0017] Preferably, the bottom of the piston detection seat is movably connected to the spring mounting seat via a detection seat spring, the bottom of the piston detection seat is fixedly connected to the coupling agent piston via a detection seat connecting rod, the outside of the coupling agent piston is in contact with the inner wall of the coupling agent sleeve, and when the piston detection seat moves up and down, the coupling agent piston can be driven to move up and down inside the coupling agent sleeve via the detection seat connecting rod;

[0018] The coupling agent sleeve is provided with three outlets, the outlet at the bottom of the coupling agent sleeve is connected to the coupling agent applying mechanism, the outlet at the side of the coupling agent sleeve is connected to the coupling agent storage bin, and the outlet at the top of the coupling agent sleeve is connected to the detection seat connecting rod.

[0019] Preferably, the fixed spacer block is installed below the outlet of the side of the coupling agent sleeve, an opening is provided at the center of the fixed spacer block, the outside of the spacer sleeve passes through the inside of the fixed spacer block, the spacer sleeve is slidably connected to the fixed spacer block, and an opening is provided on the side of the spacer sleeve;

[0020] When the bottom of the separation sleeve is in contact with the fixed separation block, the separation sleeve can block the opening in the center of the fixed separation block, and the separation sleeve is connected to the outlet on the side of the coupling agent sleeve through the opening on the side.

[0021] Preferably, the coupling agent smearing mechanism comprises a shunt tube base, the shunt tube base is fixedly installed inside the detection body, a coupling agent shunt tube is installed inside the shunt tube base, a shunt tube connecting plate is fixedly installed at one end of the coupling agent shunt tube, a coupling agent delivery tube is fixedly connected to the other end of the coupling agent shunt tube, and a coupling agent smearing ring is fixedly connected to the top of the coupling agent delivery tube;

[0022] A plurality of coupling agent shunt tubes are installed inside the shunt tube base, and the plurality of coupling agent shunt tubes are fixedly connected to the coupling agent smearing ring through the plurality of coupling agent delivery tubes.

[0023] Preferably, one end of the coupling agent shunt tube is fixedly connected to the bottom of the piston detection seat through a shunt tube connecting plate near the center of the shunt tube base, and the other end of the coupling agent shunt tube is fixedly connected to the coupling agent smearing ring through a plurality of coupling agent delivery tubes near the edge of the shunt tube base;

[0024] A groove is formed on the outside of the coupling agent smearing ring, and the axis of the coupling agent smearing ring and the axis of the piston detection seat are on the same straight line.

[0025] A detection method for testing a piston assembly uses the above-mentioned wear ultrasonic detection device.

[0026] Compared with the prior art, the present invention provides a wear ultrasonic detection device and a detection method for piston assembly testing, which have the following beneficial effects:

[0027] 1. This wear ultrasonic detection device, when detecting the piston assembly, the lifting connecting sleeve can connect the piston rod and the detection connecting rod of the piston assembly, and when the lifting connecting platform drives the connecting mechanism to move up and down, it can drive the piston rod and the detection connecting rod of the piston assembly to move up and down synchronously, so that during the detection process, the ultrasonic detection head follows the synchronous movement of the piston rod of the piston assembly throughout the whole process, which can not only detect the working process of the piston assembly but also improve the accuracy of ultrasonic detection.

[0028] 2. In this wear ultrasonic detection device, when the piston assembly is placed on the piston detection seat, the position of the piston detection seat drops. When the position of the piston detection seat drops, the coupling agent in the coupling agent sleeve can be squeezed into the coupling agent coating mechanism, and then the coupling agent is coated on the surface of the piston assembly through the coupling agent coating mechanism. After the detection is completed, when the piston detection seat rises, the coupling agent in the coupling agent storage bin can be sucked into the coupling agent sleeve, thereby realizing the cyclic coating operation of the coupling agent on the surface of the piston assembly.

[0029] 3. This wear ultrasonic detection device can drive the sliding rod block to be retracted into the lifting connection sleeve by pulling the sleeve sliding rod during detection, thereby releasing the fixation of the lifting connection sleeve. After the piston rod of the piston assembly and the detection connecting rod are connected, the sliding rod block can be pushed to extend to the outside of the lifting connection sleeve by pushing the sleeve sliding rod, thereby fixing the two ends of the lifting connection sleeve by the sliding rod block and the sleeve block, which can prevent the lifting connection sleeve from moving during the detection process and affecting the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the three-dimensional structure of a wear ultrasonic detection device of the present invention Figure 1 ;

[0031] Figure 2 A schematic diagram of the three-dimensional structure of a wear ultrasonic detection device of the present invention Figure 2 ;

[0032] Figure 3 It is a three-dimensional structural schematic diagram of a connection mechanism of a wear ultrasonic detection device of the present invention;

[0033] Figure 4 It is a schematic diagram of the internal structure of a connecting mechanism of a wear ultrasonic detection device of the present invention;

[0034] Figure 5 It is a three-dimensional structural schematic diagram of a detection mechanism of a wear ultrasonic detection device of the present invention;

[0035] Figure 6 It is a schematic diagram of the internal structure of a detection mechanism of a wear ultrasonic detection device of the present invention;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of a detection connection ring of a wear ultrasonic detection device of the present invention;

[0037] Figure 8 It is a three-dimensional structural schematic diagram of a coupling agent sleeve of a wear ultrasonic detection device of the present invention;

[0038] Fig. 9 It is a schematic diagram of the internal structure of a coupling agent sleeve of a wear ultrasonic detection device of the present invention;

[0039] Fig.10 It is a three-dimensional structural schematic diagram of a separation sleeve of a wear ultrasonic detection device of the present invention;

[0040] Fig.11 It is a three-dimensional structural schematic diagram of a coupling agent coating mechanism of a wear ultrasonic detection device of the present invention;

[0041] Fig.12 The figure is a schematic diagram of the internal structure of a shunt pipe base of a wear ultrasonic detection device of the present invention.

[0042] In the figure: 1. device body; 2. control console; 3. lifting connection platform; 4. detection base; 5. connection mechanism; 51. lifting connection plate; 52. lifting connection sleeve; 53. sleeve block; 54. sleeve sliding rod; 55. sliding rod handle; 56. sliding rod block; 6. detection mechanism; 61. detection body; 62. coupling agent storage bin; 63. detection connection ring; 64. ultrasonic detection head; 65. detection connection rod; 66. coupling agent sleeve; 67. spring mounting seat; 68. detection seat spring; 69. piston detection seat; 610. detection seat connecting rod; 611. coupling agent piston; 612. fixed partition block; 613. partition sleeve; 7. coupling agent smearing mechanism; 71. shunt tube base; 72. coupling agent shunt tube; 73. shunt tube connecting plate; 74. coupling agent delivery tube; 75. coupling agent smearing ring. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a wear ultrasonic detection device and a detection method for piston assembly testing.

[0045] Embodiment 1:

[0046] See also Figure 1 - Fig.12 A wear ultrasonic detection device comprises a device body 1, a control console 2, a lifting connection platform 3 and a detection base 4, the control console 2 is fixedly installed on the top of the device body 1, the lifting connection platform 3 is fixedly installed on the top of the device body 1, the detection base 4 is fixedly installed on the top of the device body 1, a connecting mechanism 5 is installed at the bottom of the lifting connection platform 3, a detection mechanism 6 is installed inside the detection base 4, and a coupling agent applying mechanism 7 is installed inside the detection mechanism 6;

[0047] The lifting connection platform 3 is installed on the left side of the console 2. The lifting connection platform 3 is located directly above the detection base 4. The lifting connection platform 3 can drive the connection mechanism 5 to move up and down above the detection mechanism 6.

[0048] The detection mechanism 6 includes a coupling agent storage bin 62, a coupling agent sleeve 66 and a piston detection seat 69. When the piston detection seat 69 descends, the coupling agent in the coupling agent sleeve 66 can be squeezed into the coupling agent application mechanism 7. When the piston detection seat 69 ascends, the coupling agent in the coupling agent storage bin 62 can be sucked into the coupling agent sleeve 66.

[0049] After the piston assembly is placed on the piston detection seat 69, the position of the piston detection seat 69 is lowered. When the position of the piston detection seat 69 is lowered, the coupling agent inside the coupling agent sleeve 66 can be squeezed into the coupling agent coating mechanism 7. When the position of the piston detection seat 69 is lowered, the position of the piston assembly is also lowered. The coupling agent coating mechanism 7 can coat the coupling agent on the surface of the piston assembly when the position of the piston assembly is lowered. The connecting mechanism 5 can be connected to the piston rod of the piston assembly. The lifting connecting platform 3 can drive the connecting mechanism 5 to move up and down. When the connecting mechanism 5 moves up and down, it can drive the piston to work. The detection mechanism 6 can perform ultrasonic flaw detection during the working process of the piston.

[0050] During operation, the piston assembly to be inspected is first placed on the piston inspection seat 69. After the piston assembly is placed on the piston inspection seat 69, the position of the piston inspection seat 69 is lowered. When the position of the piston inspection seat 69 is lowered, the coupling agent inside the coupling agent sleeve 66 can be squeezed into the coupling agent coating mechanism 7. When the piston inspection seat 69 is lowered, the position of the piston assembly is lowered together. During the lowering process of the piston assembly, the coupling agent coating mechanism 7 evenly coats the surface of the piston assembly with the coupling agent. Then, the piston rod of the piston assembly and the inspection connecting rod 65 are connected through the connecting mechanism 5, and the connecting mechanism 5 is driven to move up and down through the lifting connecting platform 3, thereby driving the piston rod of the piston assembly to move up and down. When the piston rod moves up and down, the inspection connecting rod 65 can drive the inspection connecting ring 63 to move up and down and perform ultrasonic inspection on the wear and internal defects of the piston assembly through the ultrasonic inspection head 64. Before the inspection, the surface of the piston assembly is evenly coated with coupling agent through the coupling agent coating mechanism 7. During the inspection process, the ultrasonic inspection head 64 moves synchronously with the piston of the piston assembly and the distance between the ultrasonic inspection head 64 and the piston assembly remains unchanged, so that the entire working process of the piston assembly can be inspected, thereby improving the accuracy of the inspection.

[0051] Embodiment 2:

[0052] The difference from the above embodiment is that, please refer to Figure 1 - Figure 4 The connection mechanism 5 includes a lifting connection plate 51, a lifting connection sleeve 52 is slidably installed inside the lifting connection plate 51, a sleeve clamping block 53 is fixedly installed outside the lifting connection sleeve 52, a sleeve sliding rod 54 is slidably installed inside the lifting connection sleeve 52, one end of the sleeve sliding rod 54 is fixedly connected to a sliding rod handle 55, and the other end of the sleeve sliding rod 54 is rotatably connected to a sliding rod clamping block 56;

[0053] The exterior of the lifting connection sleeve 52 can pass through the piston rod of the piston assembly and be connected thereto.

[0054] An opening is provided on the outside of the lifting connection sleeve 52, and the sliding rod block 56 passes through the opening on the outside of the lifting connection sleeve 52 and extends to the outside of the lifting connection sleeve 52;

[0055] The exterior of the lifting connection sleeve 52 is clamped with the exterior of the lifting connection plate 51 through the sleeve clamping block 53 and the sliding rod clamping block 56 respectively.

[0056] During operation, the height of the lifting connection plate 51 is adjusted through the lifting connection platform 3, so that the lifting connection sleeve 52 and the detection connection rod 65 are at the same height, and then the sliding rod handle 55 is pulled outward (pulled to the right in the figure). When the sliding rod handle 55 is pulled outward, the sleeve sliding rod 54 can be driven to slide inside the lifting connection sleeve 52. When the sleeve sliding rod 54 slides inside the lifting connection sleeve 52, it can drive the sliding rod block 56 to rotate and collect the sliding rod block 56 into the inside of the lifting connection sleeve 52, and then the sliding rod block 56 is engaged with the inside of the lifting connection sleeve 52. When the sliding rod handle 55 is continued to be pulled, the lifting connection sleeve 52 can be driven to slide inside the lifting connection plate 51, and then inward. Push the sliding rod handle 55 (pushing to the left in the figure) to make the lifting connection sleeve 52 pass through the detection connection rod 65 and the piston rod of the piston assembly. After the sleeve block 53 contacts the lifting connection plate 51, the position of the lifting connection sleeve 52 cannot move further. Continuing to push the sliding rod handle 55 inward can make the sliding rod block 56 contact the inside of the lifting connection sleeve 52, thereby driving the sliding rod block 56 to rotate and engage with the outside of the lifting connection plate 51. After passing through the detection connection rod 65 and the piston rod of the piston assembly, the two ends of the lifting connection sleeve 52 are respectively engaged with the outside of the lifting connection plate 51 through the sliding rod block 56 and the sleeve block 53, which can prevent the lifting connection sleeve 52 from moving during the detection process and affecting the detection result.

[0057] Embodiment three:

[0058] The difference from the above embodiment is that, please refer to Figure 5 - Fig.10 The detection mechanism 6 includes a detection body 61, which is fixedly installed inside the detection base 4. A coupling agent storage bin 62 is fixedly installed inside the detection body 61. A detection connecting rod 65 is slidably installed inside the detection body 61. A detection connecting ring 63 is fixedly connected to the bottom of the detection connecting rod 65. An ultrasonic detection head 64 is fixedly installed outside the detection connecting ring 63. A coupling agent sleeve 66 is fixedly connected to the outside of the coupling agent storage bin 62. A spring mounting seat 67 is fixedly installed outside the coupling agent sleeve 66. A detection seat spring 68 is fixedly connected to the top of the spring mounting seat 67. A piston detection seat 69 is connected to the movable end of the detection seat spring 68. A detection seat connecting rod 610 is fixedly connected to the bottom of the piston detection seat 69. A coupling agent piston 611 is fixedly connected to the bottom of the detection seat connecting rod 610. A fixed partition block 612 is fixedly installed inside the coupling agent sleeve 66. A partition sleeve 613 is slidably installed inside the coupling agent sleeve 66.

[0059] The detection connection ring 63 is slidably installed inside the detection body 61 through the detection connection rod 65. The top of the detection connection rod 65 is provided with a circular ring through-hole, and the lifting connection sleeve 52 can pass through the circular ring through-hole at the top of the detection connection rod 65.

[0060] A plurality of ultrasonic detection heads 64 are fixedly mounted on the outside of the detection connection ring 63 , and the inner sides of the plurality of ultrasonic detection heads 64 are in contact with the outer side of the piston detection seat 69 .

[0061] The bottom of the piston detection seat 69 is movably connected to the spring mounting seat 67 through the detection seat spring 68, and the bottom of the piston detection seat 69 is fixedly connected to the coupling agent piston 611 through the detection seat connecting rod 610. The outside of the coupling agent piston 611 is in contact with the inner wall of the coupling agent sleeve 66. When the piston detection seat 69 moves up and down, it can drive the coupling agent piston 611 to move up and down inside the coupling agent sleeve 66 through the detection seat connecting rod 610;

[0062] The coupling agent sleeve 66 is provided with three outlets. The outlet at the bottom of the coupling agent sleeve 66 is connected to the coupling agent coating mechanism 7 , the outlet at the side of the coupling agent sleeve 66 is connected to the coupling agent storage bin 62 , and the outlet at the top of the coupling agent sleeve 66 is connected to the detection seat connecting rod 610 .

[0063] The fixed partition block 612 is installed below the side outlet of the coupling agent sleeve 66. An opening is provided at the center of the fixed partition block 612. The outside of the partition sleeve 613 passes through the inside of the fixed partition block 612. The partition sleeve 613 is slidably connected to the fixed partition block 612. An opening is provided on the side of the partition sleeve 613.

[0064] When the bottom of the separation sleeve 613 is in contact with the fixed separation block 612 , the separation sleeve 613 can block the opening in the center of the fixed separation block 612 , and the separation sleeve 613 is connected to the outlet on the side of the coupling agent sleeve 66 through the opening on the side.

[0065] During operation, the piston assembly is first placed on the piston detection seat 69. Under the action of gravity, the piston assembly and the piston detection seat 69 move downward at the same time. When the piston detection seat 69 moves downward, the detection seat spring 68 can be compressed and the coupling agent piston 611 can be driven to move downward inside the coupling agent sleeve 66 through the detection seat connecting rod 610. When the coupling agent piston 611 moves downward, it can drive the coupling agent inside the coupling agent sleeve 66 to move downward. When the coupling agent inside the coupling agent sleeve 66 moves downward, it can drive the separation sleeve 613 to drop in position. When the separation sleeve 613 drops in position, it can block the opening on the side of the coupling agent sleeve 66 and release the contact with the fixed separation block 612, so that the coupling agent enters the coupling agent from the inside of the coupling agent sleeve 66 into the coupling agent coating mechanism 7. During detection, the connecting mechanism 5 drives the piston rod and the detection connecting rod 65 of the piston assembly to move up and down synchronously. When the detection connecting rod 65 moves up and down, it can drive the detection connecting ring 63 to move up and down. When the detection connecting ring 63 moves up and down, the ultrasonic detection head 64 can follow the piston assembly. The piston rod moves up and down synchronously, and the distance between the ultrasonic detection head 64 and the piston assembly remains unchanged during the up and down movement of the ultrasonic detection head 64. After the detection is completed, the piston assembly is removed from the piston detection seat 69, and the detection seat spring 68 rebounds to drive the position of the piston detection seat 69 to rise. When the position of the piston detection seat 69 rises, it can drive the coupling agent piston 611 inside the coupling agent sleeve 66 to rise. When the coupling agent piston 611 rises, it can drive the position of the separation sleeve 613 to rise. When the position of the separation sleeve 613 rises, the bottom of the separation sleeve 613 can block the opening in the center of the fixed separation block 612, and the opening on the side of the separation sleeve 613 is connected with the opening on the side of the coupling agent sleeve 66, so that the coupling agent inside the coupling agent storage chamber 62 is sucked into the inside of the coupling agent sleeve 66 during the rising process of the coupling agent piston 611. During the detection process, the ultrasonic detection head 64 follows the synchronous movement of the piston rod of the piston assembly throughout the whole process, which can not only detect the working process of the piston assembly but also improve the accuracy of ultrasonic detection.

[0066] Embodiment 4:

[0067] The difference from the above embodiment is that, please refer to Fig.11 - Fig.12 The coupling agent smearing mechanism 7 includes a shunt tube base 71, which is fixedly installed inside the detection body 61, and a coupling agent shunt tube 72 is installed inside the shunt tube base 71. A shunt tube connecting plate 73 is fixedly installed at one end of the coupling agent shunt tube 72, and a coupling agent delivery tube 74 is fixedly connected to the other end of the coupling agent shunt tube 72. A coupling agent smearing ring 75 is fixedly connected to the top of the coupling agent delivery tube 74;

[0068] A plurality of coupling agent shunt tubes 72 are installed inside the shunt tube base 71 . The plurality of coupling agent shunt tubes 72 are fixedly connected to the coupling agent smearing ring 75 through a plurality of coupling agent delivery tubes 74 .

[0069] One end of the coupling agent shunt tube 72 is fixedly connected to the bottom of the piston detection seat 69 through a shunt tube connecting plate 73 near the center of the shunt tube base 71, and the other end of the coupling agent shunt tube 72 is fixedly connected to the coupling agent smearing ring 75 near the edge of the shunt tube base 71 through a plurality of coupling agent delivery tubes 74;

[0070] A groove is formed on the outside of the coupling agent smearing ring 75 , and the axis of the coupling agent smearing ring 75 and the axis of the piston detection seat 69 are on the same straight line.

[0071] During operation, the coupling agent enters the coupling agent shunt tube 72 from the bottom of the piston detection seat 69, then enters the coupling agent delivery tube 74 from the coupling agent shunt tube 72, and is discharged from the opening on the coupling agent smearing ring 75. The groove on the coupling agent smearing ring 75 can store excess coupling agent. When the piston assembly descends, the coupling agent adheres to the piston assembly, thereby forming a uniform coupling agent film on the piston assembly.

[0072] Embodiment five:

[0073] A method for testing a piston assembly, using a wear ultrasonic detection device as described in Embodiments 1 to 4, comprises the following steps:

[0074] When working, first place the piston assembly on the piston detection seat 69;

[0075] When the piston detection seat 69 and the piston assembly descend, the coupling agent coating mechanism 7 can be driven to coat the coupling agent on the piston assembly;

[0076] Then the piston rod of the piston assembly and the detection connecting rod 65 are connected through the connecting mechanism 5;

[0077] When the lifting connection platform 3 drives the connection mechanism 5 to move up and down, the piston rod of the piston assembly and the detection connection rod 65 are simultaneously driven to move up and down;

[0078] During the up and down movement of the detection connecting rod 65 , the ultrasonic detection head 64 can be driven to move synchronously with the piston rod of the piston assembly to detect the piston assembly.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear ultrasonic detection device, comprising a device body, a control console, a lifting connection platform and a detection base, wherein the control console is fixedly installed on the top of the device body, the lifting connection platform is fixedly installed on the top of the device body, and the detection base is fixedly installed on the top of the device body, characterized in that: A connecting mechanism is installed at the bottom of the lifting connection platform, a detecting mechanism is installed inside the detecting base, and a coupling agent applying mechanism is installed inside the detecting mechanism; The lifting connection platform is installed on the left side of the console, and the lifting connection platform is located directly above the detection base. The lifting connection platform can drive the connection mechanism to move up and down above the detection mechanism; The detection mechanism comprises a coupling agent storage bin, a coupling agent sleeve and a piston detection seat. When the piston detection seat descends, the coupling agent in the coupling agent sleeve can be squeezed into the coupling agent application mechanism. When the piston detection seat rises, the coupling agent in the coupling agent storage bin can be sucked into the coupling agent sleeve. After the piston assembly is placed on the piston detection seat, the position of the piston detection seat is lowered. When the position of the piston detection seat is lowered, the coupling agent inside the coupling agent sleeve can be squeezed into the coupling agent coating mechanism. When the position of the piston detection seat is lowered, the position of the piston assembly is also lowered. The coupling agent coating mechanism can coat the coupling agent on the surface of the piston assembly when the position of the piston assembly is lowered. The connecting mechanism can be connected to the piston rod of the piston assembly. The lifting connecting platform can drive the connecting mechanism to move up and down. When the connecting mechanism moves up and down, it can drive the piston to work. The detection mechanism can perform ultrasonic flaw detection during the working process of the piston. The detection mechanism comprises a detection body, the detection body is fixedly mounted inside the detection base, a coupling agent storage bin is fixedly mounted inside the detection body, a detection connecting rod is slidably mounted inside the detection body, a detection connecting ring is fixedly connected to the bottom of the detection connecting rod, an ultrasonic detection head is fixedly mounted outside the detection connecting ring, a coupling agent sleeve is fixedly connected to the outside of the coupling agent storage bin, a spring mounting seat is fixedly mounted outside the coupling agent sleeve, a detection seat spring is fixedly connected to the top of the spring mounting seat, a piston detection seat is connected to the movable end of the detection seat spring, a detection seat connecting rod is fixedly connected to the bottom of the piston detection seat, a coupling agent piston is fixedly connected to the bottom of the detection seat connecting rod, a fixed partition block is fixedly mounted inside the coupling agent sleeve, and a partition sleeve is slidably mounted inside the coupling agent sleeve; The detection connection ring is slidably installed inside the detection body through the detection connection rod, and a circular ring through-hole is provided on the top of the detection connection rod, and the connection mechanism can be connected to the detection connection rod through the circular ring through-hole on the top of the detection connection rod; A plurality of ultrasonic detection heads are fixedly mounted on the outside of the detection connection ring, and the inner sides of the plurality of ultrasonic detection heads are in contact with the outer sides of the piston detection seat; The bottom of the piston detection seat is movably connected to the spring mounting seat through the detection seat spring, and the bottom of the piston detection seat is fixedly connected to the coupling agent piston through the detection seat connecting rod. The outside of the coupling agent piston is in contact with the inner wall of the coupling agent sleeve. When the piston detection seat moves up and down, the coupling agent piston can be driven to move up and down inside the coupling agent sleeve through the detection seat connecting rod; The coupling agent sleeve is provided with three outlets, the outlet at the bottom of the coupling agent sleeve is connected to the coupling agent applying mechanism, the outlet at the side of the coupling agent sleeve is connected to the coupling agent storage bin, and the outlet at the top of the coupling agent sleeve is connected to the detection seat connecting rod; The fixed partition block is installed below the outlet of the side of the coupling agent sleeve, an opening is provided at the center of the fixed partition block, the outside of the partition sleeve passes through the inside of the fixed partition block, the partition sleeve is slidably connected to the fixed partition block, and an opening is provided on the side of the partition sleeve; When the bottom of the separation sleeve is in contact with the fixed separation block, the separation sleeve can block the opening in the center of the fixed separation block, and the separation sleeve is connected to the outlet on the side of the coupling agent sleeve through the opening on the side.

2. A wear ultrasonic detection device according to claim 1, characterized in that: The connection mechanism comprises a lifting connection plate, a lifting connection sleeve is slidably installed inside the lifting connection plate, a sleeve clamp is fixedly installed outside the lifting connection sleeve, a sleeve sliding rod is slidably installed inside the lifting connection sleeve, a sliding rod handle is fixedly connected to one end of the sleeve sliding rod, and a sliding rod clamp is rotatably connected to the other end of the sleeve sliding rod; The exterior of the lifting connection sleeve can pass through the piston rod of the piston assembly and be connected thereto.

3. A wear ultrasonic detection device according to claim 2, characterized in that: The lifting connection sleeve is provided with an opening on the outside, and the sliding rod block passes through the opening on the outside of the lifting connection sleeve and extends to the outside of the lifting connection sleeve; The exterior of the lifting connection sleeve is clamped with the exterior of the lifting connection plate through a sleeve clamping block and a sliding rod clamping block respectively.

4. A wear ultrasonic detection device according to claim 1, characterized in that: The coupling agent smearing mechanism comprises a shunt tube base, the shunt tube base is fixedly installed inside the detection body, a coupling agent shunt tube is installed inside the shunt tube base, a shunt tube connecting plate is fixedly installed at one end of the coupling agent shunt tube, a coupling agent delivery tube is fixedly connected to the other end of the coupling agent shunt tube, and a coupling agent smearing ring is fixedly connected to the top of the coupling agent delivery tube; A plurality of coupling agent shunt tubes are installed inside the shunt tube base, and the plurality of coupling agent shunt tubes are fixedly connected to the coupling agent smearing ring through the plurality of coupling agent delivery tubes.

5. A wear ultrasonic detection device according to claim 4, characterized in that: One end of the coupling agent shunt tube is fixedly connected to the bottom of the piston detection seat through the shunt tube connecting plate near the center of the shunt tube base, and the other end of the coupling agent shunt tube is fixedly connected to the coupling agent smearing ring through a plurality of coupling agent delivery tubes near the edge of the shunt tube base; A groove is formed on the outside of the coupling agent smearing ring, and the axis of the coupling agent smearing ring and the axis of the piston detection seat are on the same straight line.

6. A method for testing a piston assembly, using a wear ultrasonic detection device as described in any one of claims 1 to 5.

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