Phase Doppler particle analyzer base rotary table
阅读说明：本技术 一种相位多普勒粒子分析仪基座转台 (Phase Doppler particle analyzer base rotary table ) 是由 刘正江 汪文涛 陈卫星 邓建军 于 2019-10-18 设计创作，主要内容包括：本发明属直升机模型旋翼试验技术领域,涉及一种相位多普勒粒子分析仪专用基座转台。该基座转台包括：直线运动平台机构和旋转运动平台机构,其中,直线运动平台机构与旋转运动平台机构固定连接,直线运动平台机构中设置有丝杆,旋转运动平台机构上设置有齿轮副。本发明的转台同时具有直线运动和绕轴转动功能,最终使得该相位多普勒粒子分析仪专用基座转台能够完成直线运动和旋转运动功能,能够满足相位多普勒粒子分析仪大范围测量的需求。(The invention belongs to the technical field of helicopter model rotor tests, and relates to a special base turntable for a phase Doppler particle analyzer. This base revolving stage includes: the device comprises a linear motion platform mechanism and a rotary motion platform mechanism, wherein the linear motion platform mechanism is fixedly connected with the rotary motion platform mechanism, a screw rod is arranged in the linear motion platform mechanism, and a gear pair is arranged on the rotary motion platform mechanism. The turntable simultaneously has the functions of linear motion and axial rotation, so that the special base turntable for the phase Doppler particle analyzer can complete the functions of linear motion and rotary motion, and can meet the requirement of large-range measurement of the phase Doppler particle analyzer.)
1. A phase doppler particle analyzer pedestal turntable comprising: the device comprises a linear motion platform mechanism (1) and a rotary motion platform mechanism (2), wherein the linear motion platform mechanism is fixedly connected with the rotary motion platform mechanism, a screw rod (13) is arranged in the linear motion platform mechanism (1), and a gear pair (22) is arranged on the rotary motion platform mechanism (2).
2. The pedestal turntable according to claim 1, wherein the linear motion platform mechanism (1) further comprises a platform base (11), a linear guide rail (12), a harmonic reducer (14), a servo motor (15) and a moving platform (16), wherein the linear guide rail (12) is arranged on two sides of the platform base (11), the linear guide rail (12) is fixed on the platform base (11) through a screw, one end of the screw rod (13) is fixedly connected with the platform base (11), the other end of the screw rod (13) is fixedly connected with one end of the harmonic reducer (14), and the other end of the harmonic reducer (14) is connected with the motor (15).
3. Base turntable according to claim 1, characterized in that a hollowed-out structure is provided in the platform base (11).
4. Base turntable according to claim 1, characterized in that the linear guide (12) is a linear rolling friction guide.
5. Susceptor turntable according to claim 1, characterized in that the screw (13) is a ball screw.
6. Base turntable according to claim 1, characterized in that a cutout is provided in the moving platform (16).
7. The pedestal turret according to claim 2, wherein the rotary motion platform mechanism (2) further comprises an upper mounting platform (21), a harmonic reducer (23), a servo motor (24) and a lower support platform (25), wherein the lower support platform (25) is connected to the moving platform (16), the gear pair (22) is connected to the lower support platform (25), the upper mounting platform (21) is connected to the lower support platform (25), one end of the harmonic reducer (23) is connected to the gear pair (22), and the other end of the harmonic reducer (23) is connected to the servo motor (24).
8. Foundation turntable according to claim 2, characterized in that the upper mounting platform (21) and the lower support platform (25) are shaped like a racetrack.
9. Base turntable according to claim 2, characterized in that the gear pair (22) is a planar spur toothing pair.
Technical Field
The invention belongs to the technical field of helicopter model rotor tests, and relates to a phase Doppler particle analyzer base turntable.
Background
With the continuous development of the rotor model test technology, the phase doppler particle analyzer is also continuously developed to meet the measurement requirement in the test process. At present, the phase Doppler particle analyzer is mainly used in two modes, wherein one mode is fixed position measurement and only can measure a fixed area; another form is to use a mobile platform for motion measurement, which can measure a large area within the range of motion.
At present, a moving platform used by the phase Doppler particle analyzer can only realize linear displacement motion, has short moving distance and can not realize rotary movement, so that the measuring range and efficiency of the phase Doppler particle analyzer are limited, and the universality of the phase Doppler particle analyzer is reduced.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a phase Doppler particle analyzer base revolving stage, it has linear motion and pivoting function simultaneously, finally makes this phase Doppler particle analyzer special base revolving stage can accomplish linear motion and rotary motion function, can satisfy phase Doppler particle analyzer measuring demand on a large scale to promote phase Doppler particle analyzer test measurement efficiency and ability.
The technical scheme of the invention is as follows:
in a first aspect, a phase doppler particle analyzer pedestal turntable is provided, comprising: the device comprises a linear motion platform mechanism 1 and a rotary motion platform mechanism 2, wherein the linear motion platform mechanism is fixedly connected with the rotary motion platform mechanism, a
Optionally, the linear motion platform mechanism 1 further includes a
Optionally, a hollow structure is disposed in the
Alternatively, linear guide 12 is a linear rolling friction guide.
Optionally, the
Optionally, a hollowed-out structure is disposed in the mobile platform 16.
Optionally, the rotary motion platform mechanism 2 further includes an upper mounting platform 21, a harmonic reducer 23, a servo motor 24, and a lower supporting platform 25, wherein the lower supporting platform 25 is connected to the moving platform 16, the gear pair 22 is connected to the lower supporting platform 25, the upper mounting platform 21 is connected to the lower supporting platform 25, one end of the harmonic reducer 23 is connected to the gear pair 22, and the other end of the harmonic reducer 23 is connected to the servo motor 24.
Optionally, the upper mounting platform 21 and the lower support platform 25 are shaped like a racetrack.
Optionally, gear pair 22 is a planar spur gear pair.
The invention has the beneficial effects that: the base turntable of the phase Doppler particle analyzer has the functions of linear motion and axial rotation, and finally the special base turntable of the phase Doppler particle analyzer can complete the functions of linear motion and rotary motion, so that the requirement of large-range measurement of the phase Doppler particle analyzer can be met, and the test measurement efficiency and the test measurement capability of the phase Doppler particle analyzer are improved.
Drawings
FIG. 1 is a diagram of a turntable of a base of a phase Doppler particle analyzer;
FIG. 2 is a structural view of the linear motion platform mechanism 1;
FIG. 3 is a view of the rotary motion platform mechanism 2;
fig. 4 is a dimension diagram of the mobile platform 16.
The device comprises a linear motion platform mechanism 1, a rotary motion platform mechanism 2, a
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The phase Doppler particle analyzer base turntable comprises two parts: the device comprises a linear motion platform mechanism 1 and a rotary motion platform mechanism 2, wherein the linear motion platform mechanism is fixedly connected with the rotary motion platform mechanism.
(1) Linear motion platform mechanism
The linear motion platform mechanism 1 includes: the device comprises a
The rotary motion platform 2 is connected with a moving platform 16 of the linear motion platform 1 through 16 uniformly distributed bolts.
The left and right 2 linear guide rails 12 (see the attached figure 2) are connected with the
The
The linear guide rail 12 is a linear rolling friction guide rail, the friction coefficient is 0.05, the size of the guide rail is 7000mm (length) multiplied by 40mm (width), and the material is hardened steel.
The
14 model XB1-60-42 of harmonic reducer, rated output torque 25N.m, speed ratio 1: 42.
the servo motor 15 model HG-KR43BK400w/3000r has the rated torque of 1.27N.m, the rated rotating speed of 3000rpm and the maximum rotating speed of 6000rpm, and the control precision is superior to 0.5 mm.
The moving platform 16 (see fig. 4) is cut from a 50 # steel plate, the height is 210mm, the side length of a square is 1310mm, and the arc diameter is 1468 mm. The middle half crescent hollow is carried out for reducing the weight (the hollow size is 770mm of the crescent arc diameter and 570mm of the crescent),
(2) rotary motion platform mechanism
The rotary motion platform mechanism 2 includes: the device comprises an upper mounting platform 21, a gear pair 22, a harmonic reducer 23, a servo motor 24 and a lower supporting platform 25.
The lower support platform 25 is connected with the moving platform 16 through bolts; the gear pair 22 is connected with the lower support platform 25 through bolts; the upper mounting platform 21 is connected with the lower supporting platform 25 through bolts; one end of the harmonic reducer 23 is connected with the upper mounting platform 21 through a bolt, and the other end of the harmonic reducer 23 is connected with the servo motor 24 through a bolt.
The upper mounting platform 21 is formed by integrally cutting a No. 50 steel plate, the thickness of the upper mounting platform is 60mm, the shape of the upper mounting platform is similar to a runway shape, the side length of a square is 1310mm, the outer diameter of an arc is 1420mm, and the inner diameter of the arc is 1000 mm.
Gear pair 22 is hollow circular, and thickness is 60mm, and the external diameter is 1000mm, and the arc internal diameter is 570mm, adopts the pinion to take the gear wheel mode, and the pinion number of teeth is 25, and the bull gear number of teeth is 258.
The harmonic reducer 23 is model XB1-60-160, the rated output torque is 50N.m, and the speed ratio is 160.
The servo motor 24 model HG-KR43BK400w/3000r has the rated torque of 1.27N.m, the rated rotating speed of 3000rpm (adjustable between 0 and 3000 rpm) and the control precision of being superior to 0.2 degrees.
The lower supporting platform 25 is formed by integrally cutting a No. 50 steel plate, the thickness of the lower supporting platform is 30mm, the shape of the lower supporting platform is similar to a runway shape, the side length of a square is 1310mm, the outer diameter of an arc is 1420mm, and the inner diameter of the arc is 1000 mm.
The working process is as follows:
before working, the equipment is firstly installed on the rotary table, the base motor controls the screw rod to rotate to drive the rotary table to move back and forth in the horizontal direction during working, meanwhile, the rotary table motor drives the gear to rotate, and the gear drives the rotary table to rotate, so that the equipment can accurately reach the required horizontal position and angle.
The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
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