CN113155269A - Non-contact vibration signal acquisition device - Google Patents
Non-contact vibration signal acquisition device Download PDFInfo
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- CN113155269A CN113155269A CN202110499964.5A CN202110499964A CN113155269A CN 113155269 A CN113155269 A CN 113155269A CN 202110499964 A CN202110499964 A CN 202110499964A CN 113155269 A CN113155269 A CN 113155269A
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- bottom plate
- connecting rod
- speed reducer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention relates to a non-contact vibration signal acquisition device, wherein a connecting frame block (1) is arranged at the top of the front end of a bottom plate (3), a secondary speed reducer (8) is arranged at the top of the rear end of the bottom plate, a lifting bottom plate (11) and a steering engine (6) are arranged at the top of the middle of the bottom plate, the connecting frame block (1) is connected with a driven wheel (5) and a long connecting rod (4), the long connecting rod (4) is connected with the steering engine (6) through a steering engine arm (2), the secondary speed reducer (8) is connected with a driving wheel (7), an input shaft (9) and a stepping motor (10), a rack (13) and a fixed support (12) are arranged on the lifting bottom plate (11), and a gear (14) and a gear motor (15) are arranged on the fixed support (12). The signal acquisition device has the advantages of novel structure, convenient use and wide market prospect.
Description
Technical Field
The invention relates to the field of signal acquisition devices, in particular to a non-contact vibration signal acquisition device.
Background
The traditional vibration signal device is generally in a contact type, and the basic principle is as follows: the speed or acceleration sensor is made to contact the part to be measured of the mechanical equipment, the equipment is made to operate, and whether the equipment has faults or not is judged according to signals fed back by the sensor.
However, the conventional sensor has many disadvantages: (1) contact type measurement can generate vibration, which can affect the accuracy of the measurement. (2) Some parts to be measured are difficult to directly install the sensor under the working condition, and the common sensor is difficult to contact, so that the fault diagnosis of the parts to be measured is difficult.
The advantages of the non-contact vibration signal acquisition device are the measurement mode and the working environment. The device can reach some complex working condition environments (such as high temperature, vibration and toxic environments) which are difficult to directly measure by moving the intelligent trolley, and a laser displacement sensor arranged on the trolley is used for measuring key parts, so that the signal accuracy is ensured; it has moderate volume and can work in some narrow spaces. The normal operation of the equipment is ensured, the occurrence of safety accidents can be better prevented and reduced, and the safety of human bodies and mechanical equipment is ensured. Therefore, the method has important practical significance for the development and research of the non-contact fault diagnosis device.
Disclosure of Invention
The invention provides a non-contact vibration signal acquisition device which is novel in structure, convenient to use and excellent in performance, and aims to overcome the defects of the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a non-contact vibration signal pickup assembly, includes even frame piece, rudder horn, bottom plate, long connecting rod, follows driving wheel, steering wheel, action wheel, secondary reducer, input shaft, step motor, lifting bottom plate, fixed bolster, rack, gear motor, its characterized in that: the top parts of the left side and the right side of the front end of the bottom plate are provided with connecting frame blocks, the top parts of the left side and the right side of the rear end are provided with a secondary speed reducer, the top part in the middle is provided with a lifting bottom plate and a steering engine,
the connecting frame block is composed of a first cuboid and a second cuboid with an arc top, a first through hole and a second through hole which are perpendicular to each other are formed in the middle of the first cuboid, a first cylindrical protrusion is arranged in the middle of the second cuboid, the first through hole is fixed with the bottom plate through a bolt, a driven wheel rotating shaft is arranged on the inner side of the second through hole, and a driven wheel is arranged on the outer side of the second through hole;
the long connecting rod is formed by mutually perpendicular a transverse connecting rod and a longitudinal connecting rod, a through groove is formed in the center of the transverse connecting rod, through holes III are formed in two ends of the longitudinal connecting rod, and the through holes III are matched with the cylindrical bulges I to be movably fixed;
the rudder arm is of a long strip-shaped structure, the top end of one side of the rudder arm is a large arc, the top end of the other side of the rudder arm is a small arc, a through hole IV is formed in the large arc, a cylindrical protrusion II is arranged on the small arc, the cylindrical protrusion II is arranged in the through groove, and the rudder arm is fixedly connected with the steering engine through the through hole IV;
the lifting bottom plate is of a U-shaped strip structure, connecting seats are arranged on two sides of the bottom of the lifting bottom plate, a through hole V with internal threads is formed in each connecting seat, a groove I is formed in each U-shaped side edge I, a rack is arranged on each groove I, and each U-shaped side edge II is of a trapezoidal structure;
the fixing support is composed of a tray, a vertical plate and a connecting block, the vertical plate is arranged at the top of one side of the tray, the connecting block is arranged on the outer side of the top of the vertical plate, a first screw hole is formed in the tray, a sixth through hole and a second screw hole are formed in the vertical plate, a second trapezoidal groove is formed in the connecting block, the second trapezoidal groove and the two U-shaped side edges are matched and movably fixed with each other, a gear motor is arranged on the second screw hole in the inner side of the vertical plate, a rotating shaft of the gear motor penetrates through the sixth through hole to be provided with a gear, and a sensor and a camera are fixed on the tray through the first screw hole;
the inner side of the secondary speed reducer is connected with the stepping motor through the input shaft, the outer side of the secondary speed reducer is provided with a driving wheel, and the bottom of the stepping motor is fixed with the bottom plate.
The number of the connecting frame block, the driven wheel, the driving wheel, the secondary speed reducer and the input shaft is two, and the number of the first screw holes and the number of the second screw holes are four.
The invention has the beneficial effects that: the non-contact vibration signal acquisition device is positioned by the camera, and whether the mechanical equipment has faults is judged by signals fed back by the laser sensor. The sensor has the advantages of novel structure, convenience in use and excellent performance, is particularly suitable for working in spaces where sensors are difficult to directly install, can better prevent and reduce safety accidents while ensuring normal operation of equipment, and ensures safety of personnel and mechanical equipment, thereby having wide market space.
Drawings
FIG. 1 is a front view of a non-contact vibration signal acquisition device;
FIG. 2 is a structural side view of a non-contact vibration signal acquisition device;
FIG. 3 is a front view of a ganged block structure;
FIG. 4 is a side view of the bridge block structure;
FIG. 5 is a front view of a steering engine arm structure;
FIG. 6 is a side view of a steering engine arm structure;
FIG. 7 is a front view of the long link structure;
FIG. 8 is a side view of the long link structure;
FIG. 9 is a front view of the elevator floor structure;
FIG. 10 is a top view of the elevator floor structure;
FIG. 11 is a front view of the stationary gantry structure;
fig. 12 is a side view of a fixed bracket structure.
Detailed Description
The invention will be described in further detail with reference to the following detailed description of the preferred embodiments of the invention with reference to the accompanying drawings in which fig. 1-12 are shown:
a non-contact vibration signal acquisition device comprises a connecting frame block 1, a steering engine arm 2, a bottom plate 3, a long connecting rod 4, a driven wheel 5, a steering engine 6, a driving wheel 7, a secondary speed reducer 8, an input shaft 9, a stepping motor 10, a lifting bottom plate 11, a fixed support 12, a rack 13, a gear 14 and a gear motor 15,
the bottom plate 3 is of a rectangular structure, the top parts of the left side and the right side of the front end are fixedly provided with the connecting frame blocks 1 through bolts, the top parts of the left side and the right side of the rear end are fixedly provided with the secondary speed reducer 8 through bolts, the top part in the middle is fixedly provided with the lifting bottom plate 11 and the steering engine 6 through bolts,
the connecting frame block 1 is composed of a first cuboid 16 with the length of 60mm, the width of 40mm, the thickness of 10mm and a second cuboid 17 with the length of 45mm, the width of 30mm, the thickness of 8mm and the top arc radius of 30mm, a first through hole 38 with the diameter of 20mm and a second through hole 18 with the diameter of 5mm which are perpendicular to each other are poured in the middle of the first cuboid 16, a first cylindrical bulge 19 with the diameter of 8mm and the height of 15mm is poured in the middle of the second cuboid 17, a bolt fixed with the bottom plate 3 is arranged in the first through hole 38, a rotating shaft of a driven wheel 5 is placed on the inner side of the second through hole 18, and the driven wheel 5 is arranged on the outer side of the second through hole;
the long connecting rod 4 is composed of a transverse connecting rod 19 with the length of 100mm, the width of 50mm and the thickness of 4mm and a longitudinal connecting rod 20 with the length of 360mm, the width of 20mm and the thickness of 8mm which are mutually perpendicular, a through groove 21 with the length of 42mm and the width of 6mm is arranged in the center of the transverse connecting rod 19, through holes three 38 with the diameter of 4mm are arranged at two ends of the longitudinal connecting rod 20, and the through holes three 38 and the cylindrical bulges one 19 are mutually matched and movably fixed;
the rudder arm 2 is of a long strip-shaped structure with the length of 105mm and the thickness of 6mm, the top end of one side of the rudder arm is a large arc 22 with the diameter of 10mm, the top end of the other side of the rudder arm is a small arc 23 with the diameter of 5mm, a through hole four 24 with the diameter of 10 is cast on the large arc 22, a cylindrical protrusion two 25 with the diameter of 10mm and the height of 8.5mm is cast on the small arc 23, the cylindrical protrusion two 25 is clamped in the through groove 21, and the rudder arm 2 is fixedly connected with the steering engine 6 through the through hole four 24;
the lifting bottom plate 11 is of a U-shaped long strip structure with the length of 185mm and the width of 31mm, connecting seats 26 are cast on two sides of the bottom of the lifting bottom plate, through holes five 27 with internal threads are cast on the connecting seats 26, grooves one 29 with the length of 185mm, the width of 23mm and the depth of 21.25mm are cast on the U-shaped side edges one 28, racks 13 are clamped on the grooves one 29, and the U-shaped side edges two 30 are of a trapezoidal structure;
the fixed bracket 12 consists of a tray 31 with the length of 60mm, the width of 43.5mm and the thickness of 12mm, a vertical plate 32 with the length of 60mm, the width of 60mm and the thickness of 6mm, a connecting block 33 with the length of 60mm, the width of 20mm and the thickness of 12mm, the vertical plate 32 is poured on the top of one side of the tray 31, the connecting block 33 is poured on the outer side of the top of the vertical plate 32, a first screw hole 34 is poured on the tray 31, a sixth through hole 35 and a second screw hole 36 are poured on the vertical plate 32, a second trapezoidal groove 37 is poured on the connecting block 33, the second trapezoidal groove 37 and the second U-shaped side 30 are matched and movably fixed, the second screw hole 36 on the inner side of the vertical plate 32 is fixed with the gear motor 15 through a screw, a rotating shaft of the gear motor 15 penetrates through a sixth through hole 35 to be connected with a gear 14, and a sensor and a camera are fixed on the tray 31 through a first screw hole 34;
the inner side of the secondary speed reducer 8 is connected with a stepping motor 10 through an input shaft 9, the outer side of the secondary speed reducer is provided with a driving wheel 7, and the bottom of the stepping motor 10 is fixed with the bottom plate 3.
The number of the connecting frame block 1, the driven wheel 5, the driving wheel 7, the secondary speed reducer 8 and the input shaft 9 is two, and the number of the first screw holes 34 and the second screw holes 36 is four.
The sensor is a KeYENCE, FSD22 laser displacement sensor;
the camera is a mini wireless camera of Keyence, ST 1;
the steering engine is MG996R steering engine manufactured by Shenzhen Haoren science and technology Limited.
The use principle of the non-contact vibration signal acquisition device is as follows:
the front half part of the signal acquisition device is a driven system and a signal acquisition system, the steering engine 6 and the stepping motor 10 control the planar motion of the acquisition device in a differential mode, the gear 14 is driven by the gear motor 15 to rotate, the gear 14 moves on the rack 13 to drive the fixed support 12 to move longitudinally, and vibration signals are collected. Two sides of the driven wheel 5 are symmetrically fixed on the bottom plate 3 through the connecting frame block 1. The steering engine 6 is arranged on the bottom plate 3, and the long connecting rod 4 is in interference fit with the connecting frame block 1. The rear half part of the device is a driving system, and two symmetrical stepping motors 10 are arranged on the bottom plate 3 to provide power for the driving wheel 7. A camera and sensor equipment are arranged on a fixed support 12 of the signal acquisition device and can move along the vertical direction of the lifting bottom plate 11.
The signal acquisition device observes a test point through the camera, then transmits the laser displacement sensor to a proper position in the vertical direction, then continuously adjusts and accurately positions through a camera picture, detects signals through the laser displacement sensor, and finally obtains required data through signal analysis.
The above description is only one specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and equivalents and modifications according to the technical solution of the present invention and the inventive concept thereof should be included in the scope of the present invention.
Claims (2)
1. The utility model provides a non-contact vibration signal pickup assembly, includes even frame piece (1), steering wheel arm (2), bottom plate (3), long connecting rod (4), follows driving wheel (5), steering wheel (6), action wheel (7), secondary reducer (8), input shaft (9), step motor (10), lifting bottom plate (11), fixed bolster (12), rack (13), gear (14), gear motor (15), its characterized in that:
the top parts of the left side and the right side of the front end of the bottom plate (3) are provided with connecting frame blocks (1), the top parts of the left side and the right side of the rear end are provided with a secondary speed reducer (8), the top part in the middle is provided with a lifting bottom plate (11) and a steering engine (6),
the connecting frame block (1) is composed of a cuboid I (16) and a cuboid II (17) with an arc top, a through hole I (38) and a through hole II (18) which are perpendicular to each other are arranged in the middle of the cuboid I (16), a cylindrical protrusion I (19) is arranged in the middle of the cuboid II (17), the through hole I (38) is fixed with the bottom plate (3) through a bolt, a rotating shaft of the driven wheel (5) is placed on the inner side of the through hole II (18), and the driven wheel (5) is arranged on the outer side of the through hole II (18);
the long connecting rod (4) is formed by mutually perpendicular a transverse connecting rod (39) and a longitudinal connecting rod (20), a through groove (21) is formed in the center of the transverse connecting rod (39), through holes III (38) are formed in two ends of the longitudinal connecting rod (20), and the through holes III (38) and the cylindrical protrusions I (19) are mutually matched and movably fixed;
the rudder arm (2) is of a long strip-shaped structure, the top end of one side of the rudder arm is a large arc (22), the top end of the other side of the rudder arm is a small arc (23), a through hole IV (24) is formed in the large arc (22), a cylindrical protrusion II (25) is arranged on the small arc (23), the cylindrical protrusion II (25) is arranged in the through groove (21), and the rudder arm (2) is fixedly connected with the steering engine (6) through the through hole IV (24);
the lifting bottom plate (11) is of a U-shaped long strip structure, connecting seats (26) are arranged on two sides of the bottom of the lifting bottom plate, a through hole five (27) with internal threads is formed in each connecting seat (26), a groove I (29) is formed in each U-shaped side edge I (28), a rack (13) is arranged in each groove I (29), and each U-shaped side edge II (30) is of a trapezoidal structure;
the fixing support (12) is composed of a tray (31), a vertical plate (32) and a connecting block (33), the vertical plate (32) is arranged at the top of one side of the tray (31), the connecting block (33) is arranged on the outer side of the top of the vertical plate (32), a first screw hole (34) is formed in the tray (31), a sixth through hole (35) and a second screw hole (36) are formed in the vertical plate (32), a second trapezoidal groove (37) is formed in the connecting block (33), the second trapezoidal groove (37) and a second U-shaped side edge (30) are matched and movably fixed with each other, a gear motor (15) is arranged on the second screw hole (36) in the inner side of the vertical plate (32), a rotating shaft of the gear motor (15) penetrates through the sixth through hole (35) to be provided with a gear (14), and a sensor and a camera are fixed on the tray (31) through the first screw hole (34);
the inner side of the secondary speed reducer (8) is connected with a stepping motor (10) through an input shaft (9), a driving wheel (7) is arranged on the outer side of the secondary speed reducer, and the bottom of the stepping motor (10) is fixed with the bottom plate (3).
2. The non-contact vibration signal acquisition apparatus according to claim 1, wherein: the number of the connecting frame block (1), the driven wheel (5), the driving wheel (7), the secondary speed reducer (8) and the input shaft (9) is two, and the number of the first screw holes (34) and the number of the second screw holes (36) are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110499964.5A CN113155269A (en) | 2021-05-08 | 2021-05-08 | Non-contact vibration signal acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110499964.5A CN113155269A (en) | 2021-05-08 | 2021-05-08 | Non-contact vibration signal acquisition device |
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| Publication Number | Publication Date |
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| CN113155269A true CN113155269A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110499964.5A Pending CN113155269A (en) | 2021-05-08 | 2021-05-08 | Non-contact vibration signal acquisition device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015203592A (en) * | 2014-04-11 | 2015-11-16 | 賢一郎 室▲崎▼ | Laser doppler measurement device and measurement method |
| CN107028727A (en) * | 2017-05-23 | 2017-08-11 | 杭州师范大学钱江学院 | Automatic traditional Chinese medicine dispensing car and its dosage |
| CN211061045U (en) * | 2019-12-26 | 2020-07-21 | 重庆力耀科技有限公司 | Detect accurate non-contact vibration detection device |
| CN112101450A (en) * | 2020-09-14 | 2020-12-18 | 济南浪潮高新科技投资发展有限公司 | Non-contact vibration measurement equipment and method based on deep learning and multi-sensor fusion |
-
2021
- 2021-05-08 CN CN202110499964.5A patent/CN113155269A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015203592A (en) * | 2014-04-11 | 2015-11-16 | 賢一郎 室▲崎▼ | Laser doppler measurement device and measurement method |
| CN107028727A (en) * | 2017-05-23 | 2017-08-11 | 杭州师范大学钱江学院 | Automatic traditional Chinese medicine dispensing car and its dosage |
| CN211061045U (en) * | 2019-12-26 | 2020-07-21 | 重庆力耀科技有限公司 | Detect accurate non-contact vibration detection device |
| CN112101450A (en) * | 2020-09-14 | 2020-12-18 | 济南浪潮高新科技投资发展有限公司 | Non-contact vibration measurement equipment and method based on deep learning and multi-sensor fusion |
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