Special inspection device for turbonator rotor forge piece and use method of special inspection device

Abstract

The invention discloses a special inspection device for turbonator rotor forgings and a use method thereof, and relates to the technical field of turbonator rotor forgings machining.The special inspection device comprises a transverse plate, a fixing block is fixedly connected to the center of the bottom of the transverse plate, a vertical plate is fixedly connected to the bottom of the fixing block, and a through groove is formed in the position, close to the bottom, of an inner cavity of the vertical plate; by means of mutual cooperation of the transverse plate, the eddy current detector, the motor, the pump machine and other structures, the device can not only conduct destructive sampling on the rotor forge piece, but also conduct non-destructive sampling on the rotor forge piece, and during non-destructive sampling, the sampling efficiency is greatly improved. The non-flannelette is placed in the second cavity in the fixing block, the second valve is rotated, the industrial alcohol in the first cavity in the fixing block enters the first cavity and wets the non-flannelette in the first cavity, and after the non-flannelette is wetted, the second valve is closed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of turbine generator rotor forging processing technology, in particular to a special inspection device for turbine generator rotor forgings and a use method thereof. BACKGROUND

[0002] Rotor forgings are an important part of engines. Rotor forgings need to be strictly quality inspected during production. Real-time detection of forgings is urgently needed during forging to quickly and accurately obtain the geometric size and dynamic performance of the forgings, adjust the process parameters, and determine whether to terminate forging, thereby improving product quality and processing efficiency, reducing waste, and effectively saving energy.

[0003] However, the existing rotor forgings have some problems during inspection. The existing rotor forgings often only have non-destructive testing or destructive testing during inspection, which reduces the application range of the device. Multiple inspection equipment is often needed during operation, which increases the workload of the operator. The existing inspection device is not convenient to take and is relatively bulky. Moreover, the existing inspection device is not convenient for cleaning the surface of the rotor forging. Oil stains, grease, and other conditions on the surface of the rotor forging may affect the inspection effect. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a special inspection device for turbine generator rotor forgings and a use method thereof.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a special inspection device for turbine generator rotor forgings, comprising a horizontal plate, a fixed block is fixedly connected at the bottom center of the horizontal plate, a vertical plate is fixedly connected at the bottom of the fixed block, a through slot is formed at the bottom of the inner cavity of the vertical plate, a eddy current detector is arranged in the through slot, a suction cup is fixedly connected at the top of the eddy current detector, the top of the suction cup is arranged in close contact with the top of the inner cavity of the through slot, first threaded holes are formed at the center of the front and rear sides of the vertical plate, threaded rods are threadedly connected in the first threaded holes, U-shaped clamps are inserted into one end of the threaded rods close to the eddy current detector, the U-shaped clamps are arranged on the outer side edge of the eddy current detector, a wire is installed at the bottom of the eddy current detector, and a probe is fixedly connected to one end of the wire away from the eddy current detector.

[0006] Preferably, a recess is arranged at the center of the top of the horizontal plate, a connecting groove is arranged at the bottom of the recess, a convex plate is movably connected in the connecting groove, an activity frame is fixedly connected to the top of the convex plate, the activity frame is located in the recess, through holes are arranged at the left and right sides of the activity frame close to the front and back, adjusting pipes are fixedly connected in the through holes, a plurality of first blind holes are arranged at the end away from the center of the activity frame of the adjusting pipe, second magnets are fixedly connected in the first blind holes, blind grooves are arranged at the left and right sides of the recess close to the front and back, horizontal holes are arranged at the side away from the activity frame of the blind groove, the blind groove and the horizontal hole are mutually penetrated, pumps are fixedly connected in the blind groove, limit pipes are fixedly connected to the side close to the activity frame of the pump, a plurality of second blind holes are arranged at the end away from the pump of the limit pipe, first magnets are fixedly connected in the second blind holes, the first magnet and the second magnet are mutually attached, connecting pipes are fixedly connected to the side away from the pump of the pump, the end away from the pump of the connecting pipe is located in the horizontal hole, telescopic pipes are fixedly connected to the end away from the connecting pipe of the connecting pipe, the end away from the connecting pipe of the telescopic pipe penetrates through the adjacent horizontal hole and is fixedly connected with a fixing cover.

[0007] Preferably, limit grooves are arranged at the center of the left and right sides of the horizontal plate, motors are fixedly connected in the limit grooves, power output shafts of the motors are fixedly connected with transmission rods, a plurality of second threaded holes are arranged at the top of the transmission rod, connecting barrels are sleeved on the outer edges of the transmission rod, activity grooves are arranged at the front and back of the inner cavity of the connecting barrel, protrusions are fixedly connected to the side away from the motor of the transmission rod, the protrusions are located in the adjacent activity grooves, third threaded holes are arranged at the top of the connecting barrel, second bolts are threadedly connected in the third threaded holes, bottom ends of the second bolts are threadedly connected in the adjacent second threaded holes, drill bits are fixedly connected to the end away from the motor of the connecting barrel.

[0008] Preferably, a first cavity is arranged at the top of the inner cavity of the fixed block, a second cavity is arranged at the bottom of the inner cavity of the fixed block, an adjusting groove is arranged at the center of the inner cavity of the fixed block, the adjusting groove, the first cavity and the second cavity are mutually penetrated, a second valve is installed in the adjusting groove, a fixed pipe is arranged through the front side of the fixed block close to the top and is fixedly connected thereto, the fixed pipe and the first cavity are mutually penetrated, a first valve is installed on the fixed pipe, a slot is arranged at the front side of the fixed block close to the bottom, and the slot and the second cavity are mutually penetrated.

[0009] Preferably, the bottom of the transverse plate is provided with two arc-shaped plates near the left and right sides, arc-shaped T-shaped grooves are formed in the arc-shaped plates, T-shaped blocks are movably connected in the arc-shaped T-shaped grooves, arc-shaped movable plates are fixedly connected to one side of adjacent two T-shaped blocks, two arc-shaped clamping plates are arranged on the side, away from the T-shaped blocks, of the arc-shaped movable plates, the arc-shaped clamping plates are arranged in front and back, two limiting rods are fixedly connected to the side, close to the arc-shaped plates, of the arc-shaped clamping plates, limiting plates are fixedly connected to the top and bottom of the arc-shaped movable plates near the front and back sides, the ends, away from the arc-shaped clamping plates, of the limiting rods penetrate through the adjacent limiting plates and are fixedly connected with fixed discs, springs are sleeved on the outer edges of the limiting rods, one end of each spring is fixedly connected to one side of the adjacent limiting plate, the other end of each spring is fixedly connected to one side of the adjacent fixed disc, two fixed columns are fixedly connected to the side, away from the arc-shaped movable plates, of the arc-shaped plates, and the ends, away from the arc-shaped plates, of the fixed columns are fixedly connected to one side of the transverse plate and the vertical plate respectively, and handles are fixedly connected to the front and back sides of the arc-shaped movable plates.

[0010] Preferably, L-shaped plates are arranged on the left and right sides of the through groove, hinges are arranged on one side of the L-shaped plates, and the L-shaped plates are movably connected to one side of the vertical plate through the hinges.

[0011] Preferably, a handle is fixedly connected to the top of the transverse plate, an anti-skid sleeve is sleeved on the outer edge of the handle, fourth threaded holes are formed in the front and back sides of the movable frame near the left and right sides, two rotating plates are inserted into the front and back sides of the transverse plate, fifth threaded holes are formed in the rotating plates, first bolts are threadedly connected in the fifth threaded holes, and one end of each first bolt is threadedly connected in the adjacent fourth threaded hole.

[0012] A use method of a special inspection device for a turbine generator rotor forging, comprising the following steps: S1: first, the device is assembled, the eddy current detector is placed in the through groove in the vertical plate, the suction cup is adsorbed on the top of the through groove, the eddy current detector is first limited, then the threaded rod is rotated, the U-shaped clamping plate is moved, the U-shaped clamping plate clamps and limits the eddy current detector, the lead wire is connected with the eddy current detector, the subsequent probe is used conveniently, the movable frame is placed in the groove on the top of the transverse plate, the convex plate is placed in the connecting groove, the second magnet on the adjusting pipe on the left and right sides of the movable frame is magnetically connected with the first magnet on the limiting pipe, so that the adjusting pipe and the limiting pipe are connected, the rotating plate is adjusted, the rotating plate is rotated to one side of the movable frame, and then the rotating plate and the movable frame are limited through the first bolts; S2: Secondly, the device can not only destructively sample the rotor forgings, but also non-destructively sample the rotor forgings. When non-destructively sampling, place the lint-free cloth in the second cavity inside the fixed block, turn the second valve, the industrial alcohol in the first cavity inside the fixed block will enter the first cavity, and soak the lint-free cloth inside the first cavity. After the lint-free cloth is soaked, close the second valve, take out the lint-free cloth after wearing gloves, and place the lint-free cloth on one side of the arc-shaped movable plate. Pull the arc-shaped clamping plate to move the limiting rod, which drives the fixed disc to move and stretches the spring. After the lint-free cloth is attached to one side of the arc-shaped movable plate, release the arc-shaped clamping plate, which will clamp and limit the lint-free cloth with the cooperation of the spring. When the industrial alcohol in the first cavity needs to be replenished, open the first valve and connect the pipeline to the fixed pipe. Industrial alcohol enters the first cavity inside the fixed block from the pipeline and the fixed pipe; S3: Again, hold the handle with one hand to move the device and place it close to the rotor forgings. Hold the handle with the other hand and move it in an arc direction. The handle moves the arc-shaped movable plate, which moves the T-shaped block in the arc-shaped T-shaped groove on the arc-shaped plate. The arc-shaped movable plate moves the lint-free cloth through the arc-shaped clamping plate. The lint-free cloth cleans the surface of the rotor forgings. The lint-free cloth on both sides can clean the surfaces of two rotor forgings at the same time and clean a single rotor forging twice. After cleaning, start the eddy current detector, release the handle with one hand and hold the lead wire with the other hand. Place the probe close to the surface of the cleaned rotor forgings. The probe can detect the rotor forgings, and the detection data is stored in the eddy current detector. S4: After non-destructive sampling is completed, if destructive sampling is needed, first move the connecting cylinder, which moves on the surface of the transmission rod. The protrusion limits the connecting cylinder. The connecting cylinder moves the drill bit, which further approaches the rotor forgings based on the device being close to the rotor forgings. Turn the second bolt to the threaded hole on the connecting cylinder and the threaded hole on the transmission rod to limit the position of the drill bit of the connecting cylinder. If the position of the drill bit changes, the position of the fixed cover will also change. Move the fixed cover to stretch the telescopic tube. Start the motor to rotate the transmission rod, which rotates the connecting cylinder through the protrusion and the second bolt. The connecting cylinder rotates the drill bit, which grinds and drills the surface of the rotor forgings. At the same time, start the pump to absorb the metal powder generated during grinding and drilling through the connecting pipe, telescopic tube and fixed cover. The metal powder enters the movable frame through the adjusting pipe and limiting pipe for subsequent detection. S5: Finally, after finishing work, rotate the threaded rod, the threaded rod drives the U-shaped clamping plate away from the eddy current detector, and adjusts the L-shaped plate, moves the L-shaped plate away from the surface of the eddy current detector, so as to take the eddy current detector, analyzes the data on the eddy current detector, removes the first bolt from the movable frame and the rotating plate, and removes the movable frame from the horizontal plate, so as to detect and analyze the metal powder in the movable frame.

[0013] Compared with the prior art, the beneficial effects of the present application are: The device can not only destructively sample the rotor forgings, but also non-destructively sample the rotor forgings through the cooperation between the horizontal plate, the eddy current detector, the motor, the pump and the like. When non-destructively sampling, the lint-free cloth is placed in the second cavity in the fixed block, the second valve is turned, the industrial alcohol in the first cavity in the fixed block enters the first cavity, and the lint-free cloth in the first cavity is soaked. After the lint-free cloth is soaked, the second valve is closed, the gloves are worn, the lint-free cloth is taken out, and the lint-free cloth is placed on one side of the arc-shaped movable plate. The arc-shaped clamping plate is clamped and limited to the lint-free cloth through the cooperation of the spring. One hand holds the handle, the handle drives the device to move, and the device is close to the rotor forging. The other hand holds the handle, the arc-shaped handle moves the handle, the handle drives the arc-shaped movable plate to move, the arc-shaped movable plate drives the lint-free cloth to move through the arc-shaped clamping plate, and the lint-free cloth cleans the surface of the rotor forging. The lint-free cloth on the left and right sides can clean the surfaces of two rotor forgings at the same time, and can clean a single rotor forging twice. After cleaning, the eddy current detector is started, the hand holding the handle is released, the wire is held, the probe is close to the surface of the cleaned rotor forging, and the probe can detect the rotor forging. The detection data is stored in the eddy current detector. After non-destructive sampling is completed, if destructive sampling is needed, first move the connecting cylinder, the connecting cylinder moves on the surface of the transmission rod, the convex block can limit the position of the connecting cylinder, the connecting cylinder drives the drill bit to move, so that the drill bit is further close to the rotor forging on the basis of the device being close to the rotor forging by human, the second bolt is rotated to the threaded hole on the connecting cylinder and the threaded hole on the transmission rod, so as to limit the position of the drill bit of the connecting cylinder. If the position of the drill bit changes, the position of the fixed cover will also change. Move the fixed cover, the fixed cover drives the telescopic tube to stretch, start the motor, the motor drives the transmission rod to rotate, the transmission rod drives the connecting cylinder to rotate through the convex block and the second bolt, the connecting cylinder drives the drill bit to rotate, the drill bit grinds and drills the surface of the rotor forging. At the same time, start the pump, the pump absorbs the metal powder generated in the grinding and drilling through the connecting pipe, the telescopic tube and the fixed cover. The metal powder enters the movable frame through the adjusting pipe and the limiting pipe, which is convenient for subsequent detection of the collected metal powder. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 isometric view of the present invention; Figure 2 isometric view of the present invention; Figure 3 exploded view of the present invention; Figure 4 schematic view of the vertical plate structure of the present invention; Figure 5 schematic view of the fixed block of the present invention; Figure 6 exploded view of the vertical plate of the present invention; Figure 7 left view of the vertical plate of the present invention; Figure 8 exploded view of the horizontal plate of the present invention; Figure 9 schematic view of the horizontal plate of the present invention; Figure 10 schematic view of the movable frame structure of the present invention; Figure 11 schematic view of the movable frame of the present invention; Figure 12 schematic view of the telescopic tube structure of the present invention; Figure 13 exploded view of the motor of the present invention; Figure 14 schematic view of the arc-shaped plate structure of the present invention; Figure 15 schematic view of the arc-shaped movable plate structure of the present invention; Figure 16 isometric view of the present invention; Figure 10 enlarged view of A in the middle; Figure 17 enlarged view of B in the middle. Figure 12

[0015] ​Label of the drawing: 1, horizontal plate; 2, handle; 3, fixed block; 4, vertical plate; 5, arc plate; 6, fixed tube; 7, first valve; 8, second valve; 9, L-shaped plate; 10, wire; 11, probe; 12, rope; 13, elastic ring; 14, eddy current detector; 15, sucking disc; 16, U-shaped clamping plate; 17, threaded rod; 18, movable frame; 19, rotating plate; 20, first bolt; 21, pump; 22, connecting pipe; 23, telescopic pipe; 24, fixed cover; 25, motor; 26, transmission rod; 27, convex plate; 28, first magnet; 29, convex block; 30, connecting cylinder; 31, drill bit; 32, second bolt; 33, fixed column; 34, arc-shaped clamping plate; 35, limiting plate; 36, limiting rod; 37, spring; 38, fixed disc; 39, grip; 40, T-shaped block; 41, arc-shaped movable plate; 42, adjusting pipe; 43, second magnet; 44, limiting pipe. DETAILED DESCRIPTION

[0016] Please refer to Figures 1-17The application provides a technical scheme: a special inspection device for a steam turbine rotor forging, which comprises a horizontal plate 1, a fixed block 3 fixedly connected to the bottom center of the horizontal plate 1, a vertical plate 4 fixedly connected to the bottom of the fixed block 3, a through groove formed in the inner cavity of the vertical plate 4 close to the bottom, a vortex detector 14 arranged in the through groove, a suction cup 15 fixedly connected to the top of the vortex detector 14, the top of the suction cup 15 being arranged in close contact with the top of the inner cavity of the through groove, first threaded holes formed in the vertical plate 4 close to the center on the front and back sides, threaded rods 17 threadedly connected to the first threaded holes, U-shaped clamping plates 16 inserted into one end of the vortex detector 14 close to the threaded rods 17, the U-shaped clamping plates 16 being arranged on the outer side edges of the vortex detector 14, wires 10 arranged on the bottom of the vortex detector 14, probes 11 fixedly connected to one end of the wires 10 away from the vortex detector 14, a recess formed in the top center of the horizontal plate 1, a connecting groove formed in the bottom of the recess, a convex plate 27 movably connected to the connecting groove, an activity frame 18 fixedly connected to the top of the convex plate 27, the activity frame 18 being arranged in the recess, through holes formed in the left and right sides of the activity frame 18 close to the front and back sides, adjusting pipes 42 fixedly connected to the through holes, a plurality of first blind holes formed in one end of the adjusting pipes 42 away from the center of the activity frame 18, second magnets 43 fixedly connected to the first blind holes, blind grooves formed in the left and right sides of the recess close to the front and back sides, horizontal holes formed in one side of the blind grooves away from the activity frame 18, the blind grooves and the horizontal holes being arranged in communication with each other, pumps 21 fixedly connected to one side of the blind grooves close to the activity frame 18, limiting pipes 44 fixedly connected to one end of the pumps 21 away from the pumps 21, a plurality of second blind holes formed in one end of the limiting pipes 44 away from the pumps 21, first magnets 28 fixedly connected to the second blind holes, the adjacent first magnets 28 and the second magnets 43 being arranged in close contact with each other, connecting pipes 22 fixedly connected to one side of the pumps 21 away from the activity frame 18, one end of the connecting pipes 22 away from the pumps 21 being arranged in the horizontal holes, telescopic pipes 23 fixedly connected to one end of the connecting pipes 22 away from the pumps 21, one end of the telescopic pipes 23 away from the connecting pipes 22 penetrating through the adjacent horizontal holes and being fixedly connected to fixed covers 24, limiting grooves formed in the center of the left and right sides of the horizontal plate 1, motors 25 fixedly connected to the limiting grooves, power output shafts of the motors 25 being fixedly connected to transmission rods 26, a plurality of second threaded holes formed in the top of the transmission rods 26, connecting barrels 30 arranged on the outer side edges of the transmission rods 26, activity grooves formed in the inner cavities of the connecting barrels 30 on the front and back sides, protruding blocks 29 fixedly connected to one side of the transmission rods 26 away from the motors 25, the protruding blocks 29 being arranged in the adjacent activity grooves, third threaded holes formed in the top of the connecting barrels 30, second bolts 32 threadedly connected to the third threaded holes, and drill bits 31 fixedly connected to one end of the connecting barrels 30 away from the motors 25. The first cavity is arranged in the inner cavity of the fixing block 3 near the top, the second cavity is arranged in the inner cavity of the fixing block 3 near the bottom, and the adjusting groove is arranged in the center of the inner cavity of the fixing block 3 and is in communication with the first cavity and the second cavity, the second valve 8 is installed in the adjusting groove, the fixing pipe 6 is arranged in the front side of the fixing block 3 near the top and is fixedly connected with the fixing pipe 6, the fixing pipe 6 is in communication with the first cavity, the first valve 7 is installed on the fixing pipe 6, the slot is arranged in the front side of the fixing block 3 near the bottom, and the slot is in communication with the second cavity, two arc-shaped plates 5 are arranged on the bottom of the horizontal plate 1 near the left and right sides, arc-shaped T-shaped grooves are arranged in the arc-shaped plates 5, T-shaped blocks 40 are movably connected in the arc-shaped T-shaped grooves, the arc-shaped T-shaped blocks 40 on the same side of two adjacent T-shaped blocks 40 are fixedly connected, two arc-shaped clamping plates 34 are arranged on the side, away from the T-shaped block 40, of the arc-shaped movable plate 41, the arc-shaped clamping plates 34 are arranged in front and back, two limiting rods 36 are fixedly connected to the side of the arc-shaped clamping plate 34, near the arc-shaped plate 5, two limiting plates 35 are fixedly connected to the top and the bottom of the arc-shaped movable plate 41 near the front and back sides, one end of the limiting rod 36, away from the arc-shaped clamping plate 34, penetrates through the adjacent limiting plate 35 and is fixedly connected with the fixing disc 38, the spring 37 is sleeved on the outer edge of the limiting rod 36, one end of the spring 37 is fixedly connected to the side of the adjacent limiting plate 35, and the other end of the spring 37 is fixedly connected to the side of the adjacent fixing disc 38, two fixing columns 33 are fixedly connected to the side, away from the arc-shaped plate 5, of the arc-shaped movable plate 41, one end of the fixing column 33, away from the arc-shaped plate 5, is fixedly connected to the side of the horizontal plate 1 and the vertical plate 4, the handle 39 is fixedly connected to the front and back sides of the arc-shaped movable plate 41, the L-shaped plate 9 is arranged on the left and right sides of the through slot, the hinge is arranged on one side of the L-shaped plate 9, the L-shaped plate 9 is movably connected to the side of the vertical plate 4 through the hinge, the rope 12 is fixedly connected to the bottom end of the elastic ring 13, the elastic ring 13 is sleeved on the outer edge of the wire 10, the handle 2 is fixedly connected to the top of the horizontal plate 1, the anti-skid sleeve is sleeved on the outer edge of the handle 2, the fourth threaded hole is arranged in the front and back sides of the movable frame 18 near the left and right sides, the fifth threaded hole is arranged in the front and back sides of the horizontal plate 1, the first threaded hole is arranged in the fourth threaded hole, and the first threaded hole is arranged in the fifth threaded hole.

[0017] A method for using a special inspection device for a turbine generator rotor forging, comprising the following steps: S1: First, assemble the device, place the eddy current detector 14 at the through slot inside the vertical plate 4, the suction cup 15 is adsorbed on the top of the through slot, first limit the eddy current detector 14, then rotate the threaded rod 17, the threaded rod 17 drives the U-shaped clamping plate 16 to move, the U-shaped clamping plate 16 clamps and limits the eddy current detector 14, then connect the wire 10 with the eddy current detector 14, which is convenient for the subsequent use of the probe 11, put the movable frame 18 into the groove at the top of the horizontal plate 1, the convex plate 27 is placed in the connecting groove, the second magnet 43 on the adjusting tube 42 on the left and right sides of the movable frame 18 is magnetically connected with the first magnet 28 on the limiting tube 44, so that the adjusting tube 42 and the limiting tube 44 are connected, adjust the rotating plate 19, rotate the rotating plate 19 to one side of the movable frame 18, and then limit the rotating plate 19 and the movable frame 18 by the first bolt 20; S2: Secondly, the device can not only destructively sample the rotor forgings, but also non-destructively sample the rotor forgings. When non-destructively sampling, place the lint-free cloth in the second cavity inside the fixed block 3, rotate the second valve 8, the industrial alcohol in the first cavity inside the fixed block 3 will enter the first cavity and soak the lint-free cloth inside the first cavity. After the lint-free cloth is soaked, close the second valve 8, take out the lint-free cloth after wearing gloves, and place the lint-free cloth on one side of the arc-shaped movable plate 41. Pull the arc-shaped clamping plate 34, which drives the limiting rod 36 to move, the limiting rod 36 drives the fixed disc 38 to move and stretches the spring 37. After the lint-free cloth is attached to one side of the arc-shaped movable plate 41, release the arc-shaped clamping plate 34, which will clamp and limit the lint-free cloth with the cooperation of the spring 37. When the industrial alcohol in the first cavity needs to be replenished, open the first valve 7 and connect the pipeline to the fixed pipe 6. The industrial alcohol enters the first cavity inside the fixed block 3 from the pipeline and the fixed pipe 6; S3: Again, hold the handle 2 with one hand, move the device by the handle 2, and move the device close to the rotor forgings. Hold the handle 39 with the other hand and move the handle 39 in an arc-shaped direction. The handle 39 drives the arc-shaped movable plate 41 to move, the arc-shaped movable plate 41 drives the T-shaped block 40 to move, the T-shaped block 40 moves in the arc-shaped T-shaped groove on the arc-shaped plate 5, and the arc-shaped movable plate 41 drives the lint-free cloth to move through the arc-shaped clamping plate 34. The lint-free cloth will clean the surface of the rotor forgings. The lint-free cloths on the left and right sides can not only clean the surfaces of two rotor forgings at the same time, but also clean the surface of a single rotor forging twice. After cleaning, start the eddy current detector 14, release the hand holding the handle 39, and hold the wire 10 instead. Move the probe 11 close to the surface of the cleaned rotor forgings, and the probe 11 can detect the rotor forgings. The detection data will be stored in the eddy current detector 14; S4: from the next, after the completion of non-destructive sampling, if it is necessary to carry out destructive sampling, first move the connecting cylinder 30, the connecting cylinder 30 moves on the surface of the transmission rod 26, the protruding block 29 can limit the connecting cylinder 30, the connecting cylinder 30 drives the drill bit 31 to move, so that the drill bit 31 is further close to the rotor forging on the basis of manually close the device to the rotor forging, the second bolt 32 is rotated to the threaded hole on the connecting cylinder 30 and the threaded hole on the transmission rod 26, thereby limiting the position of the drill bit 31 of the connecting cylinder 30, if the position of the drill bit 31 changes, the position of the fixed cover 24 will also change, move the fixed cover 24, the fixed cover 24 drives the telescopic tube 23 to stretch, start the motor 25, the motor 25 drives the transmission rod 26 to rotate, the transmission rod 26 drives the connecting cylinder 30 to rotate through the protruding block 29 and the second bolt 32, the connecting cylinder 30 drives the drill bit 31 to rotate, the drill bit 31 grinds and drills on the surface of the rotor forging, at the same time, start the pump 21, the pump 21 absorbs the metal powder generated in the grinding and drilling through the connecting pipe 22, the telescopic tube 23 and the fixed cover 24, the metal powder enters the movable frame 18 through the adjusting pipe 42 and the limiting pipe 44, which is convenient for subsequent detection of the collected metal powder; S5: finally, after finishing work, rotate the threaded rod 17, the threaded rod 17 drives the U-shaped clamping plate 16 away from the eddy current detector 14, adjust the L-shaped plate 9, move the L-shaped plate 9 away from the surface of the eddy current detector 14, so as to take the eddy current detector 14, analyze the data on the eddy current detector 14, then remove the first bolt 20 from the movable frame 18 and the rotating plate 19, so as to move the movable frame 18 away from the horizontal plate 1, so as to detect and analyze the metal powder in the movable frame 18.

[0018] Working principle: first, assemble the device, place the eddy current detector 14 in the through slot inside the vertical plate 4, the suction cup 15 is adsorbed on the top of the through slot, first limit the eddy current detector 14, then rotate the threaded rod 17, the threaded rod 17 drives the U-shaped clamping plate 16 to move, the U-shaped clamping plate 16 clamps and limits the eddy current detector 14, then connect the wire 10 with the eddy current detector 14, which is convenient for subsequent use of the probe 11, place the movable frame 18 in the recess on the top of the horizontal plate 1, the convex plate 27 is placed in the connecting groove, the second magnet 43 on the adjusting pipe 42 and the first magnet 28 on the limiting pipe 44 on the left and right sides of the movable frame 18 are magnetically connected, so that the adjusting pipe 42 and the limiting pipe 44 are connected, adjust the rotating plate 19, rotate the rotating plate 19 to one side of the movable frame 18, then limit the rotating plate 19 and the movable frame 18 by the first bolt 20; The device can perform both destructive and non-destructive sampling of rotor forgings. For non-destructive sampling, a lint-free cloth is placed in the second cavity inside the fixed block 3. The second valve 8 is turned, allowing industrial alcohol from the first cavity inside the fixed block 3 to enter and wet the lint-free cloth. After the cloth is wetted, the second valve 8 is closed. Wearing gloves, the lint-free cloth is removed and placed on one side of the arc-shaped movable plate 41. The arc-shaped clamp 34 is pulled, causing the limiting rod 36 to move. The limiting rod 36 then moves the fixed plate 38, stretching the spring 37. After the lint-free cloth adheres to one side of the arc-shaped movable plate 41, the arc-shaped clamp 34 is released. The clamp 34, in conjunction with the spring 37, clamps and limits the lint-free cloth. When the industrial alcohol in the first cavity needs replenishment, the first valve 7 is opened, and the pipe is connected to the fixed pipe 6, allowing the industrial alcohol to flow from the pipe. The channel and fixed pipe 6 enter the first cavity inside the fixed block 3; hold the handle 2 with one hand, and the handle 2 drives the device to move, bringing the device close to the rotor forging; hold the handle 39 with the other hand, and move the handle 39 in an arc direction; the handle 39 drives the arc-shaped movable plate 41 to move; the arc-shaped movable plate 41 drives the T-shaped block 40 to move; the T-shaped block 40 moves in the arc-shaped T-groove on the arc plate 5; the arc-shaped movable plate 41 drives the lint-free cloth to move through the arc-shaped clamp 34; the lint-free cloth will clean the surface of the rotor forging; the lint-free cloths on the left and right sides can clean the surfaces of two rotor forgings at the same time, and can also clean a single rotor forging twice; after cleaning, start the eddy current detector 14; release the hand holding the handle 39 and instead hold the wire 10; bring the probe 11 close to the cleaned rotor forging surface; the probe 11 can then detect the rotor forging; the detection data will be stored in the eddy current detector 14.After non-destructive sampling is completed, if destructive sampling is required, first move the connecting cylinder 30. The connecting cylinder 30 moves on the surface of the transmission rod 26. The protrusion 29 can limit the position of the connecting cylinder 30. The connecting cylinder 30 drives the drill bit 31 to move, so that the drill bit 31 is further closer to the rotor forging after the device has been manually moved closer to it. The second bolt 32 is rotated into the threaded hole on the connecting cylinder 30 and the threaded hole on the transmission rod 26, thereby limiting the position of the drill bit 31 on the connecting cylinder 30. If the position of the drill bit 31 changes, the position of the fixing cover 24 will also change accordingly. Move the fixing cover. 24. The fixed cover 24 drives the telescopic tube 23 to stretch. The motor 25 is started, and the motor 25 drives the transmission rod 26 to rotate. The transmission rod 26 drives the connecting cylinder 30 to rotate through the protrusion 29 and the second bolt 32. The connecting cylinder 30 drives the drill bit 31 to rotate. The drill bit 31 grinds and drills holes on the surface of the rotor forging. At the same time, the pump 21 is started. The pump 21 absorbs the metal debris generated in the grinding and drilling through the connecting pipe 22, the telescopic tube 23 and the fixed cover 24. The metal debris enters the movable frame 18 through the adjusting pipe 42 and the limiting pipe 44, which facilitates the subsequent detection of the collected metal debris. After finishing the work, rotate the threaded rod 17, which will move the U-shaped clamp 16 away from the eddy current detector 14. Adjust the L-shaped plate 9 to move it off the surface of the eddy current detector 14, thereby removing the eddy current detector 14. Analyze the data on the eddy current detector 14, and then move the first bolt 20 off the movable frame 18 and the rotating plate 19. This will allow the movable frame 18 to be moved off the horizontal plate 1, thereby enabling the detection and analysis of the metal powder inside the movable frame 18.

Claims

1. A special device for inspection of a steam turbine generator rotor forging, comprising a crosspiece (1), characterized in that: The bottom center of the transverse plate (1) is fixedly connected with a fixed block (3), the bottom of the fixed block (3) is fixedly connected with a vertical plate (4), a through slot is formed in the inner cavity of the vertical plate (4) close to the bottom, a vortex flow detector (14) is arranged in the through slot, the top of the vortex flow detector (14) is fixedly connected with a suction disc (15), the top of the suction disc (15) is arranged in close contact with the top of the inner cavity of the through slot, first threaded holes are formed in the front and rear sides of the vertical plate (4) close to the center, threaded rods (17) are threadedly connected in the first threaded holes, U-shaped clamping plates (16) are inserted into one end of the threaded rods (17) close to the vortex flow detector (14), the U-shaped clamping plates (16) are sleeved on the outer side edges of the vortex flow detector (14), and wires (10) are mounted on the bottom of the vortex flow detector (14), one end of the wires (10) away from the vortex flow detector (14) is fixedly connected with a probe (11).

2. A special purpose inspection apparatus for a steam turbine generator rotor forging as defined in claim 1, wherein: The top center of the transverse plate (1) is provided with a recess, the bottom of the recess is provided with a connecting groove, a convex plate (27) is movably connected in the connecting groove, the top of the convex plate (27) is fixedly connected with a movable frame (18), the movable frame (18) is located in the recess, through holes are formed in the left and right sides of the movable frame (18) close to the front and rear sides, adjusting pipes (42) are fixedly connected in the through holes, a plurality of first blind holes are formed in one end of the adjusting pipes (42) away from the center of the movable frame (18), second magnets (43) are fixedly connected in the first blind holes, blind grooves are formed in the left and right sides of the recess close to the front and rear sides, horizontal holes are formed in one side of the blind grooves away from the movable frame (18), the blind grooves and the horizontal holes are in communication, pumps (21) are fixedly connected in the blind grooves, limit pipes (44) are fixedly connected on one side of the pumps (21) close to the movable frame (18), a plurality of second blind holes are formed in one end of the limit pipes (44) away from the pumps (21), first magnets (28) are fixedly connected in the second blind holes, the first magnets (28) and the second magnets (43) adjacent to each other are in close contact, connecting pipes (22) are fixedly connected on one side of the pumps (21) away from the movable frame (18), one end of the connecting pipes (22) away from the pumps (21) is located in the horizontal hole, telescopic pipes (23) are fixedly connected on one end of the connecting pipes (22) away from the pumps (21), one end of the telescopic pipes (23) away from the connecting pipes (22) penetrates through the adjacent horizontal hole and is fixedly connected with a fixed cover (24).

3. A special purpose inspection apparatus for a steam turbine generator rotor forging as defined in claim 2 wherein: The horizontal plate (1) is provided with a limiting groove at the center of the left and right sides, a motor (25) is fixedly connected in the limiting groove, a power output shaft of the motor (25) is fixedly connected with a transmission rod (26), a plurality of second threaded holes are formed in the top of the transmission rod (26), a connecting barrel (30) is sleeved on the outer side edge of the transmission rod (26), a movable groove is formed in the inner cavity of the connecting barrel (30), a lug (29) is fixedly connected to the side of the transmission rod (26) away from the motor (25), the lug (29) is located in the adjacent movable groove, a third threaded hole is formed in the top of the connecting barrel (30), a second bolt (32) is threadedly connected in the third threaded hole, the bottom end of the second bolt (32) is threadedly connected in the adjacent second threaded hole, and a drill bit (31) is fixedly connected to the end of the connecting barrel (30) away from the motor (25).

4. A special purpose inspection apparatus for a steam turbine generator rotor forging as defined in claim 3 wherein: The first cavity is formed in the inner cavity of the fixed block (3) close to the top, the second cavity is formed in the inner cavity of the fixed block (3) close to the bottom, the adjusting groove is formed in the center of the inner cavity of the fixed block (3), the adjusting groove is in interpenetration with the first cavity and the second cavity, the second valve (8) is installed in the adjusting groove, the fixed pipe (6) is penetratingly arranged on the front side of the fixed block (3) close to the top and is fixedly connected with the fixed pipe (6), the fixed pipe (6) is in interpenetration with the first cavity, the first valve (7) is installed on the fixed pipe (6), and the slot is formed in the front side of the fixed block (3) close to the bottom.

5. A special purpose inspection apparatus for a steam turbine generator rotor forging as defined in claim 4 wherein: The two arc-shaped plates (5) are arranged on the bottom of the horizontal plate (1) close to the left and right sides, the arc-shaped T-shaped grooves are formed in the arc-shaped plates (5), the T-shaped blocks (40) are movably connected in the arc-shaped T-shaped grooves, the arc-shaped movable plates (41) are fixedly connected to the sides of the two adjacent T-shaped blocks (40), the two arc-shaped clamping plates (34) are arranged on the side of the arc-shaped movable plate (41) away from the T-shaped block (40), the arc-shaped clamping plates (34) are arranged in front and back, the two limiting rods (36) are fixedly connected to the side of the arc-shaped clamping plate (34) close to the arc-shaped plate (5), the limiting plates (35) are fixedly connected to the top and the bottom of the arc-shaped movable plate (41) close to the front and back sides, the ends of the limiting rods (36) away from the arc-shaped clamping plate (34) penetrate through the adjacent limiting plates (35) and are fixedly connected with the fixed discs (38), the springs (37) are sleeved on the outer side edges of the limiting rods (36), one end of the spring (37) is fixedly connected to the side of the adjacent limiting plate (35), the other end of the spring (37) is fixedly connected to the side of the adjacent fixed disc (38), the two fixed columns (33) are fixedly connected to the side of the arc-shaped plate (5) away from the arc-shaped movable plate (41), the ends of the fixed columns (33) away from the arc-shaped plate (5) are fixedly connected to the sides of the horizontal plate (1) and the vertical plate (4), and the handles (39) are fixedly connected to the front and back sides of the arc-shaped movable plate (41).

6. A special purpose inspection apparatus for a steam turbine generator rotor forging as defined in claim 5 wherein: Both sides of the through groove are equipped with L-shaped plates (9), one side of the L-shaped plates (9) is equipped with a hinge, the L-shaped plates (9) are movably connected with one side of the vertical plate (4) through the hinge, a rope (12) is fixedly connected to the front side of the vertical plate (4) close to the bottom, the bottom end of the rope (12) is fixedly connected with an elastic ring (13), and the elastic ring (13) is sleeved outside the edge of the wire (10).

7. A special purpose inspection apparatus for a steam turbine generator rotor forging as defined in claim 6 wherein: The top of the horizontal plate (1) is fixedly connected with a handle (2), the outer edge of the handle (2) is sleeved with an anti-skid sleeve, fourth threaded holes are formed in the front and rear sides of the movable frame (18) close to the left and right sides, two rotating plates (19) are inserted into the left and right sides of the horizontal plate (1), fifth threaded holes are formed in the rotating plates (19), and first bolts (20) are threadedly connected in the fifth threaded holes.

8. A method of using a special purpose inspection apparatus for a steam turbine generator rotor forging according to claim 7, characterized by, The method comprises the following steps: S1: first, assemble the device, place the eddy current detector (14) in the through groove in the vertical plate (4), and adsorb the suction cup (15) on the top of the through groove; first, limit the eddy current detector (14), then rotate the threaded rod (17), move the U-shaped clamping plate (16) driven by the threaded rod (17), clamp and limit the eddy current detector (14) by the U-shaped clamping plate (16), then connect the wire (10) with the eddy current detector (14), facilitate the use of the probe (11) in the future, place the movable frame (18) in the groove on the top of the horizontal plate (1), place the convex plate (27) in the connecting groove, magnetically connect the second magnet (43) on the adjusting tube (42) on the left and right sides of the movable frame (18) with the first magnet (28) on the limiting tube (44), so that the adjusting tube (42) and the limiting tube (44) are connected, adjust the rotating plate (19), rotate the rotating plate (19) to one side of the movable frame (18), and then limit the rotating plate (19) and the movable frame (18) by the first bolt (20); S2: Secondly, the device can not only destructively sample the rotor forgings, but also non-destructively sample the rotor forgings. When non-destructively sampling, place the lint cloth in the second cavity inside the fixed block (3), turn the second valve (8), the industrial alcohol in the first cavity inside the fixed block (3) will enter the first cavity, and soak the lint cloth inside the first cavity. After the lint cloth is soaked, close the second valve (8), take out the lint cloth after wearing gloves, and place the lint cloth on one side of the arc-shaped movable plate (41). Pull the arc-shaped clamp (34), which drives the limiting rod (36) to move, and the limiting rod (36) drives the fixed disc (38) to move and drives the spring (37) to stretch. After the lint cloth is attached to one side of the arc-shaped movable plate (41), release the arc-shaped clamp (34), which will clamp and limit the lint cloth with the cooperation of the spring (37). When the industrial alcohol in the first cavity needs to be replenished, open the first valve (7), connect the pipeline to the fixed pipe (6), and the industrial alcohol will enter the first cavity inside the fixed block (3) from the pipeline and the fixed pipe (6); S3: Thirdly, hold the handle (2) with one hand, move the device with the handle (2), and move the device close to the rotor forgings. Hold the grip (39) with the other hand, move the grip (39) in an arc direction, which drives the arc-shaped movable plate (41) to move. The arc-shaped movable plate (41) drives the T-shaped block (40) to move, which moves in the arc-shaped T-shaped slot on the arc-shaped plate (5). The arc-shaped movable plate (41) moves the lint cloth through the arc-shaped clamp (34), which cleans the surface of the rotor forgings. The lint cloth on both sides can clean the surfaces of two rotor forgings at the same time, and can also clean the surface of a single rotor forging twice. After cleaning, start the eddy current detector (14), release the grip (39) with the hand, and hold the lead wire (10) instead. Place the probe (11) close to the surface of the cleaned rotor forgings, which can detect the rotor forgings. The detection data will be stored in the eddy current detector (14). S4: from the next, after the completion of non-destructive sampling, if it is necessary to carry out destructive sampling, first move the connecting cylinder (30), the connecting cylinder (30) moves on the surface of the transmission rod (26), the protrusion (29) can limit the connecting cylinder (30), the connecting cylinder (30) drives the drill bit (31) to move, so that the drill bit (31) is further close to the rotor forging on the basis of the device close to the rotor forging, rotate the second bolt (32) to the threaded hole on the connecting cylinder (30) and the threaded hole on the transmission rod (26), thereby limiting the position of the drill bit (31) of the connecting cylinder (30), if the position of the drill bit (31) changes, the position of the fixed cover (24) will also change, move the fixed cover (24), the fixed cover (24) drives the telescopic tube (23) to stretch, start the motor (25), the motor (25) drives the transmission rod (26) to rotate, the transmission rod (26) drives the connecting cylinder (30) to rotate through the protrusion (29) and the second bolt (32), the connecting cylinder (30) drives the drill bit (31) to rotate, the drill bit (31) grinds and drills the surface of the rotor forging, at the same time, start the pump (21), the pump (21) absorbs the metal powder generated in the grinding and drilling through the connecting pipe (22), the telescopic tube (23) and the fixed cover (24), the metal powder enters the movable frame (18) through the adjusting pipe (42) and the limiting pipe (44), which is convenient for subsequent detection of the collected metal powder; S5: finally, after finishing work, rotate the threaded rod (17), the threaded rod (17) drives the U-shaped clamping plate (16) away from the eddy current detector (14), and adjusts the L-shaped plate (9), moves the L-shaped plate (9) from the surface of the eddy current detector (14), thereby taking the eddy current detector (14), analyzing the data on the eddy current detector (14), then moving the first bolt (20) from the movable frame (18) and the rotating plate (19), the movable frame (18) can be removed from the horizontal plate (1), thereby detecting and analyzing the metal powder in the movable frame (18).

Images