CN214310578U

CN214310578U - Non-contact laser rotating speed measuring instrument

Info

Publication number: CN214310578U
Application number: CN202022805089.2U
Authority: CN
Inventors: 张拴祥
Original assignee: Shaanxi Hangyu Satellite Measurement Technology Co ltd
Current assignee: Shaanxi Hangyu Satellite Measurement Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-09-28
Anticipated expiration: 2030-11-30

Abstract

The utility model 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, two supporting plates are fixedly arranged on the left side of the 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 screw rod is arranged between the two supporting plates, the rod walls at the two ends of the screw rod are respectively and rotationally connected with the side walls of the corresponding supporting plates through first bearings, the lower end of the screw rod penetrates through the supporting plate on the lower side and is fixedly connected with the output end of the first motor, the rod wall of the screw rod is in threaded connection with a sliding block, the fixed first mounting panel that is provided with of left side wall of slider, the upper surface left side of first mounting panel is through a plurality of bracing piece fixedly connected with second mounting panels, the lower fixed surface of second mounting panel is provided with the weather shield. The utility model discloses a to the measurement of impeller and pivot, be convenient for appear not hard up time measuring between pivot and impeller.

Description

Non-contact laser rotating speed measuring instrument

Technical Field

The utility model relates to a laser rotational speed measuring apparatu technical field especially relates to a non-contact laser rotational speed measuring apparatu.

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.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and can only measure the impeller among the prior art, in case when not hard up appearing between impeller and the pivot, can not effectively measure, influence its problem of normal use, and a non-contact laser rotational speed measuring apparatu that proposes.

In order to achieve the above purpose, the utility model 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 rotating speed measuring instrument is arranged inside the rain shield, and rotating rods are respectively and fixedly arranged on the front side and the back side of the laser rotating speed measuring instrument, 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 is rotated with the lateral wall of the fixed plate that corresponds through the third bearing 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 fixedly 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 utility model provides a non-contact laser rotational speed measuring apparatu possesses following beneficial effect:

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 part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses a to the measurement of impeller and pivot, be convenient for appear not hard up time measuring in time between pivot and impeller.

Drawings

Fig. 1 is a schematic structural diagram of a non-contact laser rotation speed measuring instrument provided by 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all 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, and are only for convenience of description and simplicity of 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 therefore, 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 lower surface of the second mounting plate 9, and a laser rotation speed measuring instrument 11 is arranged inside the rain shield 10, 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.

Embodiment 2 is as shown in fig. 1 and fig. 3 on the basis of embodiment 1, the driving mechanism includes two fixing plates 15, a worm wheel 16 and a worm 17, the two fixing plates 15 are fixedly disposed on the front side of the rain shield 10, rod walls at two ends of the worm 17 are respectively rotatably connected with side walls of the corresponding fixing plates 15 through third bearings, a 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 left side wall of the left fixing plate 15 is fixedly provided with a second motor 18, and a left end of the worm 17 penetrates through the left fixing plate 15 and is fixedly connected with an output end of the second motor 18, so as to facilitate angle adjustment of the laser rotation speed measuring instrument 11.

Embodiment 3 is as shown in fig. 2 on embodiment 1's basis, and the right side wall of slider 6 is fixed and is equipped with stopper 19, and stopper 19's inside activity has cup jointed gag lever post 20, and the both ends of gag lever post 20 respectively with the lateral wall fixed connection of the backup pad 3 that corresponds avoid lead screw 5 to drive slider 6 and rotate.

Embodiment 4 is based on embodiment 1, as shown in fig. 2, a first protection cover 21 is fixedly provided on the lower surface of the lower support plate 3, and the first motor 4 is provided inside the first protection cover 21, so that the first motor 4 is prevented from being damaged in rainy days.

Embodiment 5 is based on embodiment 2, as shown in fig. 3, a second protection 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 protection cover 22, so that the second motor 18 is prevented from being damaged in rainy days.

Embodiment 6 on the basis of embodiment 1, as shown in fig. 2 to 3, the first motor 4 and the second motor 18 both use stepping motors, so as to facilitate the rotation and lifting of the laser tachometer 11.

The utility model discloses in, during the use, start first motor 4, first motor 4's output drives lead screw 5 and rotates, lead screw 5 is cup jointed in the activity between stopper 19 and gag lever post 20 and is acted on and drive slider 6 down, the lower motion, slider 6 drives first mounting panel 7 motion, first mounting panel 7 drives second mounting panel 9 motion through a plurality of bracing pieces 8, realize laser rotational speed measuring apparatu 11's motion in the time of second mounting panel 9 motion, make laser transmitter of laser rotational speed measuring apparatu 11 can measure the impeller, when needing the countershaft to measure, start second motor 18, second motor 18's output drives worm 17 and rotates, worm 17 drives worm wheel 16 and rotates, worm wheel 16 drives the bull stick 12 rotation of front side, thereby drive laser rotational speed measuring apparatu 11 and rotate, be convenient for measure the countershaft.

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

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

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 upper surface of the first mounting plate (7) through a plurality of supporting rods (8), 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), the rod walls at two ends 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 meshed 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.