CN220508865U - Crankshaft ultrasonic flaw detection device - Google Patents
Crankshaft ultrasonic flaw detection device Download PDFInfo
- Publication number
- CN220508865U CN220508865U CN202321791178.3U CN202321791178U CN220508865U CN 220508865 U CN220508865 U CN 220508865U CN 202321791178 U CN202321791178 U CN 202321791178U CN 220508865 U CN220508865 U CN 220508865U
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- China
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- crankshaft
- guide rail
- frame
- driving
- flaw detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 239000000523 sample Substances 0.000 claims abstract description 17
- 238000007689 inspection Methods 0.000 claims 5
- 238000003754 machining Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to the technical field of machining and discloses an ultrasonic flaw detection device for a crankshaft, which comprises a frame, wherein a crankshaft is detachably connected to the frame, a motor I for driving the crankshaft to rotate is arranged on the frame, a guide rail is arranged on the frame, the guide rail is parallel to the axis of the crankshaft, an ultrasonic flaw detection mechanism is connected to the guide rail in a sliding manner and comprises a sliding block connected to the guide rail in a sliding manner, a linear driving mechanism for driving the sliding block to do linear reciprocating motion along the guide rail is arranged on the sliding block, a screw rod and a motor II for driving the screw rod to rotate are connected to the sliding block in a rotating manner, a nut is connected to the screw rod in a threaded manner, a support frame is fixedly connected to the nut, and a probe is arranged on the support frame. The utility model has the following advantages and effects: after the flaw detection of the main journal of one section is finished, the linear driving mechanism can convey the probe to the main journal of the next section, the flaw detection process does not need manual operation, the degree of automation is high, and the flaw detection efficiency is high.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to an ultrasonic flaw detection device for a crankshaft.
Background
The crankshaft is the most important component in an engine. The engine is used for bearing the force transmitted by the connecting rod, converting the force into torque, outputting the torque through the crankshaft and driving other accessories on the engine to work. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, periodically-changed gas inertia force and reciprocating inertia force, so that the crankshaft is subjected to bending torsion load. Therefore, the crankshaft is required to have enough strength and rigidity, and the journal surface needs to be wear-resistant, uniform in work and good in balance. The crankshaft comprises a main journal, a crank, a connecting rod journal, a counterweight and the like.
The crankshaft may be defective and damaged during manufacture and use. The former is the surface and internal defects of the part materials, such as air holes, shrinkage cavities, shrinkage porosity, slag inclusion, microcracks and the like generated in smelting, casting, welding, heat treatment and machining of the part materials and blanks; the latter are external damage to the part in use, such as wear, corrosion, fatigue cracking, and the like. The defects on the surface and the inside of the part are hidden dangers of damage during working, and are internal factors of part failure and machine damage accidents. Therefore, flaw detection is needed after the crankshaft is machined, and the products can be sold after being qualified.
Disclosure of Invention
The utility model aims to provide the crankshaft ultrasonic flaw detection device which has the effects of convenience in operation and high automation degree.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a bent axle ultrasonic flaw detection device, includes the frame, can dismantle in the frame and be connected with bent axle, drive bent axle pivoted motor one, be equipped with the guide rail in the frame, the guide rail is parallel with the bent axle axis, sliding connection has ultrasonic flaw detection mechanism on the guide rail, ultrasonic flaw detection mechanism includes the slider of sliding connection on the guide rail, be equipped with the drive slider on the slider and do the linear drive mechanism of linear reciprocating motion along the guide rail, rotate on the slider and be connected with lead screw, drive lead screw pivoted motor two, threaded connection has the nut on the lead screw, fixedly connected with support frame on the nut, be equipped with the probe on the support frame.
The utility model is further provided with: the sliding block is provided with a guide rod, and the nut is in sliding connection with the guide rod.
The utility model is further provided with: the second motor is connected to the sliding block in a sliding mode, a driving cylinder for driving the second motor to do linear reciprocating motion is arranged on the sliding block, a driving gear is fixedly connected to an output shaft of the second motor, a driven gear is fixedly connected to the lead screw, which is close to the two ends of the motor, and the driving cylinder can drive the driving gear to be meshed with the driven gear.
The utility model is further provided with: the linear driving mechanism comprises a driving gear rotationally connected to the sliding block, a rack is arranged on the rack and parallel to the guide rail, the driving gear is meshed with the rack, the driving cylinder can drive the driving gear to be meshed with the driving gear, and when the driving gear is meshed with the driving gear, the driving gear is separated from the driven gear.
The utility model is further provided with: the bottom of the supporting frame is provided with a rotary cylinder, the supporting frame is provided with a detection cylinder, and the output end of the detection cylinder is fixedly connected with the probe.
The utility model is further provided with: and a control box is arranged on the frame.
The beneficial effects of the utility model are as follows:
when the flaw detection is carried out on the crankshaft, the motor drives the crankshaft to rotate by taking the axle center of the main journal of the crankshaft as the center, and the ultrasonic flaw detector is adopted to automatically detect the flaw of each section of main journal. The linear driving mechanism can drive the ultrasonic flaw detection mechanism to move along the crankshaft, after crankshaft parameters are input into the control system, when the probe of the ultrasonic flaw detection machine moves to one end of the main journal, the control system controls the motor II to drive the screw rod to rotate, the screw rod drives the probe to do linear motion along the direction of the main journal, at the moment, the main journal rotates, and the probe can scan the whole peripheral surface of the main journal, so that flaw detection is conducted on the whole main journal. After the flaw detection of the main journal of one section is finished, the control system controls the linear driving mechanism to convey the probe to the main journal of the next section, the flaw detection process does not need manual operation, the degree of automation is high, and the flaw detection efficiency is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a schematic structural view of an ultrasonic flaw detection mechanism.
Fig. 3 is a plan view of the ultrasonic flaw detection mechanism.
In the figure, 1, a rack; 2. a crankshaft; 21. a main journal; 22. a crank; 3. a guide rail; 4. an ultrasonic flaw detection mechanism; 41. a slide block; 42. a linear driving mechanism; 421. a drive gear; 422. a second motor; 423. a drive gear; 43. a screw rod; 44. a support frame; 45. a probe; 46. a guide rod; 47. a driven gear; 5. a driving cylinder; 6. a rotary cylinder; 7. and detecting a cylinder.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Examples: the utility model provides a bent axle ultrasonic flaw detection device, as shown in fig. 1, including frame 1, be connected with bent axle 2 on the frame 1 can dismantle, drive bent axle 2 pivoted motor one, be equipped with guide rail 3 on the frame 1, guide rail 3 is parallel with bent axle 2 axis, sliding connection has ultrasonic flaw detection mechanism 4 on the guide rail 3, ultrasonic flaw detection mechanism 4 includes sliding connection's slider 41 on guide rail 3, be equipped with the straight line actuating mechanism 42 that drive slider 41 is straight reciprocating motion along guide rail 3 on the slider 41, the rotation is connected with lead screw 43 on the slider 41, drive lead screw 43 pivoted motor two 422, threaded connection has the nut on the lead screw 43, fixedly connected with support frame 44 on the nut, be equipped with probe 45 on the support frame 44.
The slide block 41 is provided with a guide rod 46, and a nut is slidably connected with the guide rod 46.
The second motor 422 is slidably connected to the slider 41, the slider 41 is provided with a driving cylinder 5 for driving the second motor 422 to reciprocate linearly, a driving gear 423 is fixedly connected to an output shaft of the second motor 422, a driven gear 47 is fixedly connected to a lead screw 43 near the end of the second motor 422, and the driving cylinder 5 can drive the driving gear 423 to be meshed with the driven gear 47.
The linear driving mechanism 42 includes a driving gear 421 rotatably connected to the slider 41, a rack is provided on the frame 1, the rack is parallel to the guide rail 3, the driving gear 421 is meshed with the rack, the driving cylinder 5 can drive the driving gear 423 to be meshed with the driving gear 421, and when the driving gear 423 is meshed with the driving gear 421, the driving gear 423 is separated from the driven gear 47.
The bottom of the supporting frame 44 is provided with a rotary air cylinder 6, the supporting frame 44 is provided with a detection air cylinder 7, and the output end of the detection air cylinder 7 is fixedly connected with a probe 45.
A control box is arranged on the frame 1.
The working principle of the utility model is as follows:
when flaw detection is performed on the crankshaft 2, the motor-driven crankshaft 2 rotates about the axis of the main journal 21 of the crankshaft 2, and flaw detection can be performed automatically on each section of the main journal 21 by using an ultrasonic flaw detector. The linear driving mechanism 42 can drive the ultrasonic flaw detection mechanism 4 to move along the crankshaft 2, after parameters of the crankshaft 2 are input into the control system, when the probe 45 of the ultrasonic flaw detection machine moves to one end of the main journal 21, the control system controls the motor two 422 to drive the screw 43 to rotate, the screw 43 drives the probe 45 to linearly move along the direction of the main journal 21, at this moment, the main journal 21 rotates, and the probe 45 can scan the whole peripheral surface of the main journal 21, so that flaw detection is carried out on the whole main journal 21. After the flaw detection of the main journal 21 at one section is finished, the control system controls the linear driving mechanism 42 to convey the probe 45 to the main journal 21 at the next section, manual operation is not needed in the flaw detection process, and the degree of automation and the flaw detection efficiency are high.
Claims (6)
1. An ultrasonic flaw detector for a crankshaft is characterized in that: including frame (1), be connected with bent axle (2), drive bent axle (2) pivoted motor one on frame (1), be equipped with guide rail (3) on frame (1), guide rail (3) are parallel with bent axle (2) axis, sliding connection has ultrasonic flaw detection mechanism (4) on guide rail (3), ultrasonic flaw detection mechanism (4) are including sliding connection slider (41) on guide rail (3), be equipped with on slider (41) drive slider (41) and do linear drive mechanism (42) of linear reciprocating motion along guide rail (3), rotate on slider (41) and be connected with lead screw (43), drive lead screw (43) pivoted motor two (422), threaded connection has the nut on lead screw (43), fixedly connected with support frame (44) on the nut, be equipped with probe (45) on support frame (44).
2. The ultrasonic crankshaft inspection device according to claim 1, wherein: the slide block (41) is provided with a guide rod (46), and the nut is in sliding connection with the guide rod (46).
3. The ultrasonic crankshaft inspection device according to claim 1, wherein: the motor II (422) is slidably connected to the sliding block (41), a driving cylinder (5) for driving the motor II (422) to do linear reciprocating motion is arranged on the sliding block (41), a driving gear (423) is fixedly connected to an output shaft of the motor II (422), a driven gear (47) is fixedly connected to a lead screw (43) close to the end of the motor II (422), and the driving cylinder (5) can drive the driving gear (423) to be meshed with the driven gear (47).
4. A crankshaft ultrasonic inspection apparatus according to claim 3, wherein: the linear driving mechanism (42) comprises a driving gear (421) rotationally connected to the sliding block (41), a rack is arranged on the rack (1), the rack is parallel to the guide rail (3), the driving gear (421) is meshed with the rack, the driving cylinder (5) can drive the driving gear (423) to be meshed with the driving gear (421), and the driving gear (423) is separated from the driven gear (47) when the driving gear (423) is meshed with the driving gear (421).
5. The ultrasonic crankshaft inspection device according to claim 1, wherein: the bottom of the supporting frame (44) is provided with a rotary air cylinder (6), the supporting frame (44) is provided with a detection air cylinder (7), and the output end of the detection air cylinder (7) is fixedly connected with a probe (45).
6. The ultrasonic crankshaft inspection device according to claim 1, wherein: a control box is arranged on the frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321791178.3U CN220508865U (en) | 2023-07-07 | 2023-07-07 | Crankshaft ultrasonic flaw detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321791178.3U CN220508865U (en) | 2023-07-07 | 2023-07-07 | Crankshaft ultrasonic flaw detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220508865U true CN220508865U (en) | 2024-02-20 |
Family
ID=89881280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321791178.3U Active CN220508865U (en) | 2023-07-07 | 2023-07-07 | Crankshaft ultrasonic flaw detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220508865U (en) |
-
2023
- 2023-07-07 CN CN202321791178.3U patent/CN220508865U/en active Active
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