CN112505344A - Non-contact laser rotating speed measuring instrument - Google Patents
Non-contact laser rotating speed measuring instrument Download PDFInfo
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- CN112505344A CN112505344A CN202011366544.1A CN202011366544A CN112505344A CN 112505344 A CN112505344 A CN 112505344A CN 202011366544 A CN202011366544 A CN 202011366544A CN 112505344 A CN112505344 A CN 112505344A
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- 230000001681 protective effect Effects 0.000 claims description 13
- 244000309464 bull Species 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the technical field of laser rotating speed measuring instruments, and discloses a non-contact laser rotating speed measuring instrument which comprises a wind driven generator main body and a case, wherein two supporting plates are fixedly arranged on the left side of a supporting rod of the wind driven generator main body, a first motor is fixedly arranged on the lower surface of the supporting plate on the lower side, a lead screw is arranged between the two supporting plates, rod walls at two ends of the lead screw are respectively and rotatably connected with the side walls of the corresponding supporting plates through first bearings, the lower end of the lead screw penetrates through the supporting plate on the lower side and is fixedly connected with the output end of the first motor, a sliding block is in threaded connection with the rod wall of the lead screw, a first mounting plate is fixedly arranged on the left side wall of the sliding block, a second mounting plate is fixedly connected on the left side of the upper surface of. The invention realizes the measurement of the impeller and the rotating shaft, and is convenient for timely detection when the impeller and the rotating shaft are loosened.
Description
Technical Field
The invention relates to the technical field of laser rotating speed measuring instruments, in particular to a non-contact laser rotating speed measuring instrument.
Background
There are many methods for measuring the rotation speed, and the traditional methods include mechanical, magnetoelectric, photoelectric and other indirect methods, which have different emphasis points and are suitable for different application requirements, but in some applications, such as toxicity, radiation, high altitude, strong noise, underwater, diamagnetism, high and low temperature, strong vibration, ultra high speed, space limitation, pollution, scientific experiment and other complex special application environments, the traditional method is limited, and the laser has potential application value in the rotation speed measurement with high brightness and long-distance transmission performance.
The method for testing the rotating speed interference of the bracket to the impeller of the horizontal shaft wind turbine has the patent number CN111271230A, and comprises the following steps: manufacturing impellers, wherein the diameters of the impellers are different, but the chord lengths of the impellers are the same; preparing a rotating shaft, a bearing seat and a steel wire rope, tensioning and hoisting the bearing seat in a wind tunnel experiment section by using the steel wire rope, and installing the rotating shaft in the bearing seat; preparing round steel tubes as brackets, wherein the diameters of the brackets are different, but the lengths of the brackets are the same; a reflective strip is adhered on the surface of the rotating shaft, and a laser rotating speed measuring instrument is arranged to enable the laser beam to irradiate the reflective strip; and an impeller is arranged on the rotating shaft, and a laser rotating speed measuring instrument is debugged.
However, when the technical scheme is used, the impeller can only be measured but the rotating shaft cannot be measured, and when the impeller loosens with the rotating shaft, the impeller cannot be effectively detected, so that the normal use of the wind driven generator main body is influenced.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, only an impeller can be measured, once the impeller and a rotating shaft are loosened, effective measurement cannot be carried out, and normal use of the impeller is influenced, and provides a non-contact laser rotating speed measuring instrument.
In order to achieve the purpose, the invention adopts the following technical scheme:
a non-contact laser rotating speed measuring instrument comprises a wind driven generator main body and a case, wherein two supporting plates are fixedly arranged on the left side of a supporting rod of the wind driven generator main body, a first motor is fixedly arranged on the lower surface of the supporting plate on the lower side, a lead screw is arranged between the two supporting plates, rod walls at two ends of the lead screw are respectively and rotatably connected with the side walls of the corresponding supporting plates through first bearings, the lower end of the lead screw penetrates through the supporting plate on the lower side and is fixedly connected with the output end of the first motor, a slide block is in threaded connection with the rod wall of the lead screw, a first mounting plate is fixedly arranged on the left side wall of the slide block, a second mounting plate is fixedly connected on the left side of the upper surface of the first mounting plate through a plurality of supporting rods, a rain shield is fixedly arranged on the lower surface of the second mounting plate, a laser, two one end pole wall that the bull stick carried on the back mutually corresponds the lateral wall rotation connection of side through the inside of second bearing and rain shade respectively, the fixed actuating mechanism that is provided with of preceding lateral wall of rain shade, the inside of quick-witted case is provided with tachometer and number of turns table, electric connection between laser tachometer and the quick-witted case.
Preferably, actuating mechanism includes two fixed plates, worm wheel and worm, two the fixed plate is fixed to be set up in the front side of weather shield, the both ends pole wall of worm rotates through the lateral wall of third bearing and the fixed plate that corresponds respectively and is connected, the front side the front end of bull stick runs through the weather shield and fixed and the worm wheel between fixed cup joint, the meshing is connected between worm wheel and the worm, the left side wall of fixed plate is fixed and is provided with the second motor, the left end of worm run through left fixed plate and with the output fixed connection of second motor.
Preferably, the right side wall of slider is fixed and is equipped with the stopper, the inside activity of stopper has cup jointed the gag lever post, the both ends of gag lever post respectively with the lateral wall fixed connection of the backup pad that corresponds.
Preferably, a first protective cover is fixedly arranged on the lower surface of the supporting plate at the lower side, and the first motor is arranged inside the first protective cover.
Preferably, a second protective cover is fixedly arranged on the left side wall of the fixing plate on the left side, and the second motor is arranged inside the second protective cover.
Preferably, the first motor is a stepping motor.
Compared with the prior art, the invention provides a non-contact laser rotating speed measuring instrument, which has the following beneficial effects:
1. the non-contact laser rotating speed measuring instrument can adjust the angle of the laser rotating speed measuring instrument through the driving mechanism arranged on the front side wall of the rain shield, so that the measurement of a rotating shaft and an impeller is realized.
2. This non-contact laser rotational speed measuring apparatu through setting up the stopper on slider right side to and the gag lever post that cup joints with the stopper activity, can realize the motion of slider at first motor during operation, avoid influencing the rotation of impeller when not measuring.
The invention realizes the measurement of the impeller and the rotating shaft, and is convenient for timely detection when the looseness occurs between the rotating shaft and the impeller.
Drawings
Fig. 1 is a schematic structural diagram of a non-contact laser rotation speed measuring instrument according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is an enlarged view of a portion B in fig. 1.
In the figure: the device comprises a wind driven generator main body 1, a case 2, a supporting plate 3, a first motor 4, a lead screw 5, a sliding block 6, a first mounting plate 7, a supporting rod 8, a second mounting plate 9, a rain shield 10, a laser rotating speed measuring instrument 11, a rotating rod 12, a rotating speed meter 13, a turn number meter 14, a fixing plate 15, a worm wheel 16, a worm 17, a second motor 18, a limiting block 19, a limiting rod 20, a first protective cover 21 and a second protective cover 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Embodiment 1 as shown in fig. 1-2, a non-contact laser rotation speed measuring instrument comprises a wind power generator main body 1 and a case 2, two supporting plates 3 are fixedly arranged on the left side of a supporting column of the wind power generator main body 1, a first motor 4 is fixedly arranged on the lower surface of the lower supporting plate 3, a screw 5 is arranged between the two supporting plates 3, rod walls at two ends of the screw 5 are respectively rotatably connected with the side walls of the corresponding supporting plates 3 through first bearings, the lower end of the screw 5 penetrates through the lower supporting plate 3 and is fixedly connected with the output end of the first motor 4, a slide block 6 is in threaded connection with the rod wall of the screw 5, a first mounting plate 7 is fixedly arranged on the left side wall of the slide block 6, a second mounting plate 9 is fixedly connected on the left side of the upper surface of the first mounting plate 7 through a plurality of supporting rods 8, a rain shield 10 is fixedly arranged on the, the front side and the rear side of the laser rotating speed measuring instrument 11 are respectively and fixedly provided with rotating rods 12, the rod walls at the opposite ends of the two rotating rods 12 are respectively and rotatably connected with the side wall of the corresponding side in the rain shield 10 through second bearings, the front side wall of the rain shield 10 is fixedly provided with a driving mechanism, the inside of the case 2 is provided with a rotating speed meter 13 and a circle number meter 14, and the laser rotating speed measuring instrument 11 is electrically connected with the case 2.
the driving mechanism comprises two fixing plates 15, a worm wheel 16 and a worm 17, the two fixing plates 15 are fixedly arranged at the front side of the rain shield 10, rod walls at two ends of the worm 17 are respectively rotatably connected with the side walls of the corresponding fixing plates 15 through third bearings, the front end of a rotating rod 12 at the front side penetrates through the rain shield 10 and is fixedly sleeved with the worm wheel 16, the worm wheel 16 is meshed with the worm 17, a second motor 18 is fixedly arranged on the left side wall of the left fixing plate 15, the left end of the worm 17 penetrates through the left fixing plate 15 and is fixedly connected with the output end of the second motor 18, a limiting block 19 is fixedly arranged on the right side wall of the sliding block 6, a limiting rod 20 is movably sleeved inside the limiting block 19, two ends of the limiting rod 20 are respectively fixedly connected with the side walls of the corresponding supporting plates 3, a first protective cover 21 is fixedly arranged on the lower surface of the lower supporting plate 3, the first motor 4 is arranged, the left side wall of the left side fixing plate 15 is fixedly provided with a second protective cover 22, the second motor 18 is arranged inside the second protective cover 22, and the first motor 4 and the second motor 18 both adopt stepping motors.
When the laser rotating speed measuring device is used, the first motor 4 is started, the output end of the first motor 4 drives the screw rod 5 to rotate, the screw rod 5 drives the sliding block 6 to move up and down under the action of movable sleeving between the limiting block 19 and the limiting rod 20, the sliding block 6 drives the first mounting plate 7 to move, the first mounting plate 7 drives the second mounting plate 9 to move through the plurality of supporting rods 8, the movement of the laser rotating speed measuring device 11 is realized while the second mounting plate 9 moves, a laser transmitter of the laser rotating speed measuring device 11 can measure an impeller, when a rotating shaft needs to be measured, the second motor 18 is started, the output end of the second motor 18 drives the worm 17 to rotate, the worm 17 drives the worm wheel 16 to rotate, and the worm wheel 16 drives the rotating rod 12 on the front side to rotate, so that the laser rotating speed measuring device 11 is driven to rotate.
Compared with the prior art, the technical scheme can measure the rotating shaft when in use, and can detect whether the rotating shaft and the impeller are loosened or not
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. A non-contact laser rotating speed measuring instrument comprises a wind driven generator main body (1) and a case (2), and is characterized in that two supporting plates (3) are fixedly arranged on the left side of a supporting column of the wind driven generator main body (1), a first motor (4) is fixedly arranged on the lower surface of the supporting plate (3) on the lower side, a lead screw (5) is arranged between the two supporting plates (3), rod walls at two ends of the lead screw (5) are respectively and rotatably connected with the side wall of the corresponding supporting plate (3) through a first bearing, the lower end of the lead screw penetrates through the supporting plate (3) on the lower side and is fixedly connected with the output end of the first motor (4), a sliding block (6) is in threaded connection with the rod wall of the lead screw (5), a first mounting plate (7) is fixedly arranged on the left side wall of the sliding block (6), a second mounting plate (9) is fixedly connected with the left side of, the lower fixed surface of second mounting panel (9) is provided with rain-proof cover (10), the inside of rain-proof cover (10) is provided with laser rotational speed measuring apparatu (11), both sides are fixed respectively around laser rotational speed measuring apparatu (11) are provided with bull stick (12), two the one end pole wall that bull stick (12) carried on the back mutually corresponds the lateral wall rotation of side through the inside of second bearing and rain-proof cover (10) respectively and is connected, the fixed actuating mechanism that is provided with of preceding lateral wall of rain-proof cover (10), the inside of quick-witted case (2) is provided with tachometer (13) and number of turns table (14), electric connection between laser rotational speed measuring apparatu (11) and quick-witted case (2).
2. The non-contact laser rotating speed measuring instrument according to claim 1, wherein the driving mechanism comprises two fixing plates (15), a worm wheel (16) and a worm (17), the two fixing plates (15) are fixedly arranged on the front side of the rain shield (10), two end rod walls of the worm (17) are respectively and rotatably connected with the side walls of the corresponding fixing plates (15) through third bearings, the front end of the rotating rod (12) on the front side penetrates through the rain shield (10) and is fixedly sleeved with the worm wheel (16), the worm wheel (16) is in meshing connection with the worm (17), the left side wall of the fixing plate (15) on the left side is fixedly provided with a second motor (18), and the left end of the worm (17) penetrates through the fixing plate (15) on the left side and is fixedly connected with the output end of the second motor (18).
3. The non-contact laser rotating speed measuring instrument according to claim 1, wherein a limiting block (19) is fixedly arranged on the right side wall of the sliding block (6), a limiting rod (20) is movably sleeved inside the limiting block (19), and two ends of the limiting rod (20) are respectively fixedly connected with the side walls of the corresponding supporting plates (3).
4. A non-contact laser rotation speed measuring instrument according to claim 1, wherein a first protective cover (21) is fixedly arranged on the lower surface of the supporting plate (3), and the first motor (4) is arranged inside the first protective cover (21).
5. A non-contact laser rotation speed measuring instrument according to claim 2, wherein a second protective cover (22) is fixedly arranged on the left side wall of the left fixing plate (15), and the second motor (18) is arranged inside the second protective cover (22).
6. A non-contact laser tachometer as claimed in claim 1, characterised in that the first motor (4) and the second motor (18) are stepper motors.
7. The non-contact laser rotating speed measuring instrument according to claim 1, comprising a wind driven generator main body (1) and a case (2), wherein two support plates (3) are fixedly arranged on the left side of a support column of the wind driven generator main body (1), a first motor (4) is fixedly arranged on the lower surface of the support plate (3) on the lower side, a lead screw (5) is arranged between the two support plates (3), rod walls at two ends of the lead screw (5) are respectively and rotatably connected with the side wall of the corresponding support plate (3) through a first bearing, the lower end of the lead screw penetrates through the support plate (3) on the lower side and is fixedly connected with the output end of the first motor (4), a slide block (6) is in threaded connection with the rod wall of the lead screw (5), a first mounting plate (7) is fixedly arranged on the left side wall of the slide block (6), a second mounting plate (9) is fixedly connected on the left side of the upper surface of the, a rain shield (10) is fixedly arranged on the lower surface of the second mounting plate (9), a laser rotating speed measuring instrument (11) is arranged inside the rain shield (10), rotating rods (12) are fixedly arranged on the front side and the rear side of the laser rotating speed measuring instrument (11) respectively, rod walls at one ends, back to back, of the two rotating rods (12) are rotatably connected with side walls on the corresponding side inside the rain shield (10) through second bearings respectively, a driving mechanism is fixedly arranged on the front side wall of the rain shield (10), a rotating speed meter (13) and a turn number meter (14) are arranged inside the case (2), and the laser rotating speed measuring instrument (11) is electrically connected with the case (2);
the driving mechanism comprises two fixing plates (15), a worm wheel (16) and a worm (17), wherein the two fixing plates (15) are fixedly arranged on the front side of the rain shield (10), rod walls at two ends of the worm (17) are respectively connected with the corresponding side wall of the fixing plate (15) in a rotating manner through a third bearing, the front end of the rotating rod (12) on the front side penetrates through the rain shield (10) and is fixedly sleeved with the worm wheel (16), the worm wheel (16) is connected with the worm (17) in a meshing manner, a second motor (18) is fixedly arranged on the left side wall of the fixing plate (15), the left end of the worm (17) penetrates through the left fixing plate (15) and is fixedly connected with the output end of the second motor (18), a limiting block (19) is fixedly arranged on the right side wall of the sliding block (6), and a limiting rod (20) is movably sleeved in the limiting block (19), the both ends of gag lever post (20) respectively with the lateral wall fixed connection of backup pad (3) that corresponds, the downside the lower fixed surface of backup pad (3) is provided with first protection casing (21), first motor (4) set up in the inside of first protection casing (21), the left side wall of fixed plate (15) is fixed and is equipped with second protection casing (22), second motor (18) set up in the inside of second protection casing (22), step motor is all adopted in first motor (4) and second motor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366544.1A CN112505344A (en) | 2020-11-30 | 2020-11-30 | Non-contact laser rotating speed measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366544.1A CN112505344A (en) | 2020-11-30 | 2020-11-30 | Non-contact laser rotating speed measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112505344A true CN112505344A (en) | 2021-03-16 |
Family
ID=74967411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011366544.1A Withdrawn CN112505344A (en) | 2020-11-30 | 2020-11-30 | Non-contact laser rotating speed measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112505344A (en) |
-
2020
- 2020-11-30 CN CN202011366544.1A patent/CN112505344A/en not_active Withdrawn
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Application publication date: 20210316 |
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| WW01 | Invention patent application withdrawn after publication |