Miniaturized high-rigidity inertia testing device

Abstract

The utility model discloses a miniaturized high-rigidity inertia testing device, and relates to the technical field of gyroscope inertia tests. The device comprises an outer ring assembly, a load assembly locking pin, a middle ring assembly, an inner ring assembly, a load assembly and a glass housing. The load assembly mainly has the function of being connected with gyro equipment. The outer ring assembly is connected with the middle ring assembly, the middle ring assembly is connected with the inner ring assembly, the inner ring assembly is connected with the load assembly, and the glass housing is connected with the outer ring assembly. The load assembly comprises a simulated load, a rotor shaft, a bearing assembly, a motor assembly, a load connecting frame and a balancing weight, the simulated load is connected with the motor assembly through the rotor shaft, the upper end of the load connecting frame is connected with the motor assembly, an inner hole of the load connecting frame is connected with the bearing assembly, and the lower end of the load connecting frame is connected with the balancing weight; the motor assembly is connected with the rotor shaft to realize high-speed movement of the rotor shaft.

Description

TECHNICAL FIELD

[0001] The utility model relates to gyro inertia test technical field, concretely is a miniaturized high stiffness inertia testing device. BACKGROUND

[0002] Inertial instrument needs to work under different working conditions, and factors such as weight, motion form and motion speed affect the structural rigidity of the installation inertial instrument device. For the problem that the shaft needs to bear large inertia moment in the process of large load and high-speed rotation, the shaft structure needs to be reasonably designed, and the motor type needs to be reasonably selected. The mechanical table body and the control box of the experimental device are designed in a split body, which has complex structure, large volume, high cost and inconvenient carrying.

[0003] Therefore, in order to ensure that the gyro of the inertial instrument in motion can accurately measure the position angle under different postures, the utility model is designed as three-axis rotation, considering that the load is small in appearance and light in weight, it is convenient for laboratory operation, and the table body structure needs to meet the requirements of miniaturization, portability and low cost. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of the prior art, the utility model provides the following technical scheme: a miniaturized high stiffness inertia testing device, which comprises an outer ring assembly, a load assembly locking pin, a middle ring assembly, an inner ring assembly, a load assembly and a glass cover shell. The load assembly mainly has the function of connecting the gyro device. The outer ring assembly is connected with the middle ring assembly, the middle ring assembly is connected with the inner ring assembly, the inner ring assembly is connected with the load assembly, and the glass cover shell is connected with the outer ring assembly. The load assembly comprises an analog load, a rotor shaft, a bearing assembly, a motor assembly, a load connecting frame and a counterweight, the analog load is connected with the motor assembly through the rotor shaft, the motor assembly is connected with the load connecting frame at the upper end, the load connecting frame is connected with the bearing assembly in the inner hole, and the load connecting frame is connected with the counterweight at the lower end. The motor assembly is connected with the rotor shaft to realize high-speed motion of the rotor shaft.

[0005] Further, the frame connecting main shaft constitutes the middle part of the shafting, and is subjected to large dynamic load in the motion process. The load connecting frame is made of 7075 aluminum alloy material, and the high-strength lightweight material ensures the inherent frequency of the device. The load connecting frame adopts a fully enclosed rectangular cross-section frame form.

[0006] Further, the inner ring assembly comprises an inner ring connecting frame, an inner ring motor assembly, an inner ring angle measuring assembly, an inner ring slip ring assembly and a division pin locking device.

[0007] Further, the left end of the inner ring connecting frame is connected with the inner ring motor assembly, the right end is sequentially connected with the inner ring angle measuring assembly and the slip ring assembly, and the division pin locking device is used to constrain the relative position of the load assembly and the inner ring connecting frame.

[0008] Further, the inner ring connecting frame is connected with the middle ring assembly.

[0009] Further, the middle ring connecting frame is connected with the outer ring assembly

[0010] Further, the glass cover is made of glass material and covers the whole device, and the five-star handle is used for locking the glass cover on the bottom plate of the outer ring assembly.

[0011] Compared with the prior art, the utility model has the following beneficial effects: (1) the utility model adopts four-axis rotation mode, the rotor shaft movement speed range is 0-3600 ° / s, the structure design of the shaft system part needs to meet the rigid requirement under the high-speed continuous rotation, the overall appearance size of the device is small, and the portability is strong; (2) the utility model meets the high-speed rotation of the rotor shaft, the continuous rotation of the arbitrary angle of XYZ three-axis direction, and the angle information of the rotor at arbitrary speed and position can be measured in real time. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the whole structure schematic view of the utility model.

[0013] Fig. 2 It is the load assembly structure sectional view of the utility model.

[0014] Fig. 3 It is the rotor shaft structure schematic view of the utility model.

[0015] In the drawing: 1-outer ring assembly;2-load assembly locking pin;3-load assembly;31-counterweight;32-simulated load;33-rotor shaft;34-load connecting frame;35-bearing assembly;36-motor assembly;4-inner ring assembly;5-middle ring assembly;6-glass cover. DETAILED DESCRIPTION

[0016] The technical scheme of the utility model will be further explained by the specific embodiment. Figs. 1-3 The technical scheme of the utility model will be further explained by the specific embodiment.

[0017] The utility model provides a miniaturized high stiffness inertia testing arrangement, including outer ring subassembly 1, load assembly locking pin 2, load assembly 3, inner ring subassembly 4, middle ring subassembly 5, glass cover shell 6. Load assembly 3 is connected by load, rotor shaft 33, motor assembly 36 in proper order and is composed, load assembly 3 is connected with inner ring subassembly 4, inner ring subassembly 4 is connected with middle ring subassembly 5, middle ring subassembly 5 is connected with outer ring subassembly 1, and glass cover shell 6 is attached at the bottom plate of outer ring subassembly 1. Load assembly 3 includes analog load 32, rotor shaft 33, bearing assembly 35, motor assembly 36, load connection frame 34, counterweight 31 (load frame is added between inner frame and analog load 32, ensures the center of inner ring shaft system on rotating shaft system, reduces the influence of eccentric moment), analog load 32 is connected with motor assembly 36 through rotor shaft 33, load connection frame 34 upper end connects motor assembly 36, load connection frame 34 inner hole is connected with bearing assembly 35, load connection frame 34 lower end connects counterweight 31, and the rotation center is kept with the gravity center of analog load 32 coincident. Motor assembly 36 is connected with rotor shaft 33, and high speed motion of rotor shaft 33 is realized. Three -axis locking mode adopts locking pin and fixes;Load connection frame 34 is connected with inner ring subassembly 4;Inner ring connection frame is connected with middle ring subassembly 5;Middle ring connection frame is connected with outer ring subassembly 1.

[0018] Load assembly 3, inner ring subassembly 4 and middle ring subassembly 5 all adopt the installation of convenient dismounting to realize quick replacement, realize the quick deployment of different test requirements;Still include fiber optic gyroscope and laser displacement sensor, and the posture, displacement and vibration of dynamic measurement testing arrangement are measured;In which fiber optic gyroscope measures angular velocity and angular acceleration;Laser displacement sensor real -time monitoring displacement change;Glass cover shell 6 adopts glass material, covers on the whole set of device, and five star handle is used to lock glass cover shell 6 on the bottom plate of outer ring subassembly 1;In which the material of glass cover shell 6 can also adopt high -strength transparent polycarbonate, improves the impact resistance and optical performance.

Claims

1. A miniaturized high stiffness inertial test device, characterized in that: The device comprises an outer ring assembly (1), a load assembly locking pin (2), a load assembly (3), an inner ring assembly (4), a middle ring assembly (5), and a glass cover (6). The load assembly (3) is composed of a load, a rotor shaft (33), and a motor assembly (36) in sequence, and is connected with the inner ring assembly (4), the inner ring assembly (4) is connected with the middle ring assembly (5), the middle ring assembly (5) is connected with the outer ring assembly (1), and the glass cover (6) is attached to the bottom plate of the outer ring assembly (1).

2. The miniaturized high stiffness inertial test device of claim 1, wherein: The load assembly (3) comprises an analog load (32), a rotor shaft (33), a bearing assembly (35), a motor assembly (36), a load connecting frame (34), and a counterweight (31), the analog load (32) is connected with the motor assembly (36) through a shaft, the upper end of the load connecting frame (34) is connected with the motor assembly (36), the inner hole of the load connecting frame (34) is connected with the bearing assembly (35), and the lower end of the load connecting frame (34) is connected with the counterweight (31).

3. The miniaturized high stiffness inertial test device of claim 2, wherein: The motor assembly (36) is connected with the rotor shaft (33) to realize high-speed movement of the rotor shaft (33).

4. The miniaturized high stiffness inertial test device of claim 3, wherein: The load assembly (3), the inner ring assembly (4), and the middle ring assembly (5) are all installed in a detachable manner.

5. The miniaturized high stiffness inertial test device of claim 4, wherein: The device further comprises a fiber-optic gyroscope and a laser displacement sensor, which are used to dynamically measure the attitude, displacement, and vibration of the device; the fiber-optic gyroscope is used to measure angular velocity and angular acceleration; and the laser displacement sensor is used to monitor displacement changes in real time.

6. The miniaturized high stiffness inertial test device of claim 5, wherein: The glass cover (6) is made of glass and covers the whole device, and a five-star handle is used to lock the glass cover (6) on the bottom plate of the outer ring assembly (1).

7. The miniaturized high stiffness inertial test device of claim 6, wherein: The material of the glass cover (6) can also be high-strength transparent polycarbonate to improve impact resistance and optical performance.

Images