CN112276993A

CN112276993A - Three-axis turntable for simulating head movement of human body

Info

Publication number: CN112276993A
Application number: CN201910685277.5A
Authority: CN
Inventors: 潘能微; 刘喜平; 罗小兵; 霍国亮
Original assignee: Jiujiang Precision Measuring Technology Research Institute
Current assignee: Jiujiang Precision Measuring Technology Research Institute
Priority date: 2019-07-27
Filing date: 2019-07-27
Publication date: 2021-01-29

Abstract

The invention discloses a three-axis turntable for simulating human head movement, which comprises a base, an outer ring shaft system, a middle ring shaft system, an inner ring shaft system and the like. The outer ring shafting simulates head pitching motion, the middle ring shafting simulates head rolling motion, and the inner ring shafting simulates head rolling motion. The three shafting all adopt precision bearing to support, and its rotation axis is mutually perpendicular and crossing on the three-dimensional space. The rotary table can simulate the movement of the head of a human body, and can provide semi-physical simulation conditions for head equipment such as aircraft (such as helicopters and fighters) helmets and the like.

Description

Three-axis turntable for simulating head movement of human body

Technical Field

The invention relates to a three-axis turntable for simulating head movement of a human body. In order to truly simulate the head movement of a human body, three shaft systems of the three-shaft rotary table are intersected and mutually vertical in space. The three axes respectively simulate the head rolling, rolling and pitching motions from inside to outside.

Background

With the advancement of technology, helmets have gradually developed toward helmet display systems from the viewpoint of purely protecting pilot safety. The current development trend shows three major trends of integration, virtualization and light weight.

With the increase of the operational workload of pilots and the improvement of air combat requirements, the helmet display system can integrate the functions of display, situation perception, weapon aiming, firepower striking, battlefield evaluation and the like into a whole in the future, so that the system integration of various functions is needed, the system structure is continuously optimized, and the function of the real system is maximized. Meanwhile, as the functions of the helmet display system are increasingly powerful, the weight of the helmet display system is on the rise, so that lighter helmet materials and smaller and lighter electronic components are required.

The three-axis turntable can simulate the movement of the head of a human body and can provide semi-physical simulation conditions for head equipment such as helmets and the like. The real and effective simulation data are provided for developing a helmet display system.

Disclosure of Invention

The invention aims to develop a three-axis turntable, which is used for simulating human head movement and is used for truly simulating human head movement. The three axes respectively simulate the head rolling, rolling and pitching motions from inside to outside.

The purpose of the invention is realized as follows:

1. the three-axis turntable comprises a base, an outer ring shaft system, a middle ring shaft system and an inner ring shaft system. The load table top is arranged on the inner ring shafting main shaft and is used for installing loads such as helmets and the like. Three shaft systems of the three-shaft rotary table are supported by precision bearings, and shaft ends are fixedly connected by screws. The axes of the three shafting are mutually vertical in space, and the three shafting are intersected at one point in space.

2. The three-axis turntable is driven by one direct current torque motor, and an angle sensor is arranged at the tail end of the axis and used for feeding back the angle position. The three shafting can move independently and simultaneously.

Drawings

FIG. 1 general structure diagram of three-axis turntable

FIG. 2 outer ring structure diagram

FIG. 3 is a view of the ring structure

FIG. 4 is a view showing an inner ring structure

Shown in the following figures:

1. base 2, outer ring shafting 3, well shafting

4. Inner ring shafting 5, outer ring left shaft 6 and outer ring bearing assembly

7. Outer ring encoder 8, outer ring limiting component 9 and outer ring motor component

10. Outer ring right shaft 11, middle ring frame 12 and middle ring counterweight

13. Middle ring bearing assembly 14, middle ring spindle 15 and middle ring encoder

16. Middle ring motor assembly 17, middle ring limiting assembly 18 and inner ring frame

19. Load table 20, inner ring main shaft 21 and inner ring bearing assembly

22. Inner ring motor assembly 23, inner ring encoder 24 and inner ring limiting assembly

Detailed Description

The invention will be better understood by the following description of embodiments thereof, but the applicant's specific embodiments are not intended to limit the invention to the particular embodiments shown, and any changes in the definition of parts or features and/or in the overall structure, not essential changes, are intended to define the scope of the invention.

The invention is further illustrated by the following examples in connection with the accompanying drawings.

A three-axis rotary table for simulating human head movement comprises a base (1), an outer ring shaft system (2), a middle ring shaft system (3) and an inner ring shaft system (4), and is characterized in that the base (1) supports the outer ring shaft system (2), the middle ring shaft system (3) is fixed on a left shaft of an outer ring (5) and a right shaft of the outer ring (10) through screws by a middle ring shaft system (11), and the inner ring shaft system (4) is fixed on a middle ring main shaft (14) through an inner ring frame (18), so that the three-axis rotary table is formed.

The outer ring is formed: the outer ring shaft system is divided into a left part and a right part, and the left side of the outer ring shaft system comprises (6) an outer ring bearing assembly, (5) an outer ring left shaft, (7) an outer ring encoder, and (8) an outer ring limiting assembly. The right side consists of (6) an outer ring bearing assembly, (10) an outer ring right shaft, (9) an outer ring motor assembly and the like. The whole shafting is driven by (9) an outer ring motor component, and (7) an outer ring encoder is used as a position feedback element, and (8) an outer ring limiting component ensures that the movement range of the outer ring limiting component is within an allowable range.

The middle ring is formed as follows: the middle ring shaft system comprises a middle ring frame (11), a middle ring spindle (14), a middle ring bearing assembly (13), a middle ring motor assembly (16), a middle ring encoder (15), a middle ring limiting assembly (17) and the like. The inner ring shaft system is installed on the middle ring main shaft of the (14) by screws and is driven by a direct current torque motor directly connected with the main shaft. The angular position of the shafting is detected and fed back by an encoder fixed at the lower end of the main shaft. (12) The middle ring counterweight is used for balancing the middle ring shaft system.

The inner ring is formed: the inner ring shafting consists of a load table top (19), an inner ring spindle (20), an inner ring bearing assembly (21), an inner ring motor assembly (22), an inner ring encoder (23), an inner ring frame (18), an inner ring limiting assembly (24) and the like. (19) The load table is mounted (20) on the inner ring spindle by screws, and the load is mounted (19) on the load table. (20) The inner ring main shaft is supported on the inner ring frame through a bearing. Driven by a motor directly connected with the main shaft. The angular position of the inner ring shafting is detected and fed back by an encoder fixed at the lower end of the main shaft.

The working mode is as follows: the three-axis turntable is arranged on a fixed base, and the load such as a helmet and the like is arranged on a load table-board. The three shafting are all driven by a direct current torque motor and are provided with a Heidenhain encoder as a position feedback element. Under the control of a control system, the three-axis turntable can drive a load to do speed, position and swing work. The three shafts can move independently and simultaneously.

Claims

1. The invention relates to a three-axis turntable for simulating human head movement, which comprises a base, an outer ring shaft system, a middle ring shaft system, an inner ring shaft system and the like. The outer ring shafting simulates head pitching motion, the middle ring shafting simulates head rolling motion, and the inner ring shafting simulates head rolling motion. The three shafting all adopt precision bearing to support, and its rotation axis is mutually perpendicular and crossing on the three-dimensional space. The rotary table can simulate the movement of the head of a human body, and can provide semi-physical simulation conditions for head equipment such as aircraft (such as helicopters and fighters) helmets and the like.

2. The three-axis rotary table for simulating human head movement according to claim 1, wherein the three-axis rotary table comprises a base, an outer ring axis system, a middle ring axis system, an inner ring axis system and the like, and the three rotation axis systems are perpendicular to each other and intersect in three-dimensional space.

3. The three-axis rotary table for simulating the head movement of a human body according to claim 1, wherein three axes of the three-axis rotary table respectively simulate the head rolling, rolling and pitching movements from inside to outside, and the three axes can be linked.

4. The three-axis rotary table for simulating head movement of a human body according to claim 1, wherein the base is directly connected with the outer ring, the outer ring is directly connected with the middle ring, and the middle ring is directly connected with the inner ring, which are mutually interconnected by means of precision bearings respectively; the range of the rotation angle of the outer ring relative to the base is-90 degrees to +90 degrees, the range of the rotation angle of the middle ring relative to the outer ring is-90 degrees to +90 degrees, and the range of the rotation angle of the inner ring relative to the middle ring is-90 degrees to +90 degrees.

5. The three-axis rotary table for simulating human head movement according to claim 1, wherein the load table is connected to the axis of the inner ring axis for fixing the load (head equipment such as a helmet) and realizing the load test.

6. The three-axis rotary table for simulating human head movement according to claim 1, wherein the three axis systems are composed of a supporting structure, a supporting component, a driving component and an angle measuring feedback component, namely a limiting component.