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Multi-friction plate superimposed loading mechanism and a large-value bidirectional friction-loaded electro-hydraulic load simulator using this mechanism

A multi-friction plate and loading mechanism technology, applied in simulators, instruments, general control systems, etc., to achieve high-frequency response and high-dynamic effects

Active Publication Date: 2017-11-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the two-way friction-loaded electro-hydraulic load simulator with no redundant torque can use existing high-performance friction materials to achieve high-precision, high-dynamic and high-reliability large-scale values ​​under the condition of small structural size. To solve the problem of moment loading, a multi-friction plate superposition loading mechanism and a large-value bidirectional friction loading electro-hydraulic load simulator using this mechanism are provided

Method used

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  • Multi-friction plate superimposed loading mechanism and a large-value bidirectional friction-loaded electro-hydraulic load simulator using this mechanism
  • Multi-friction plate superimposed loading mechanism and a large-value bidirectional friction-loaded electro-hydraulic load simulator using this mechanism
  • Multi-friction plate superimposed loading mechanism and a large-value bidirectional friction-loaded electro-hydraulic load simulator using this mechanism

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specific Embodiment approach 1

[0026] Specific implementation mode one: the following combination Figure 3 to Figure 7 Describe this embodiment, the multi-friction plate superposition loading mechanism described in this embodiment includes a first constant rotation friction plate 1, six pins 2, a second swing friction plate 3, a second constant rotation friction plate 4, a first swing Friction plate 5, second friction plate support 6 and first friction plate support 7;

[0027] The first friction plate support 7 is fixed on the main shaft 40 through a sliding key 8, and a first swinging friction plate 5 is fixed on the side surface of the first friction plate support 7;

[0028] The first friction plate support 7 is correspondingly and fixedly connected with the second friction plate support 6 through a concave-convex groove, and the second friction plate support 6 and the first friction plate support 7 swing together and transmit torque to the main shaft 40;

[0029] The second swinging friction plate 3 ...

specific Embodiment approach 2

[0034] Specific implementation mode two: the following combination Figure 1 to Figure 9 Describe this embodiment mode, this embodiment mode adopts multi-friction plate superposition loading mechanism described in the present invention to use the large value two-way friction loading type electro-hydraulic load simulator, it comprises industrial computer 101, A / D data acquisition card 102, D / A converter Circuit 103, servo amplifier 104, DSP motion control card 105, large servo valve 106, code disc 107, torque sensor 109, torque motor 110 and load simulation unit;

[0035] The code disc 107 and the large servo valve 106 are arranged on the steering gear 108 under test; the steering gear 108 under test is rigidly connected with the main shaft 40 through a torque sensor 109; The input end is connected, and the signal output end of torque sensor 109 is connected with the second input end of A / D data acquisition card 102, and the output end of A / D data acquisition card 102 is connec...

specific Embodiment approach 3

[0050] Embodiment 3: This embodiment is a further limitation of Embodiment 2. The load simulation unit also includes two first round nuts 9, a second round nut 26, two first bearings 10, two second bearings 11, Two third bearings 24, fourth bearings 29, two fifth bearings 38, upper base 12, lower base 43, middle base 44, first large gear 13, second large gear 37, sleeve 18, Key 19, first pinion gear 20, second pinion gear 35, A transmission shaft 27, No. 1 B transmission shaft 21, No. 2 B transmission shaft 34, hydraulic cylinder cover plate 22, three bevel gears 25, first bearing end Cover 28, second bearing end cover 36, two third bearing end covers 39, bearing sleeve 30, valve block 32, hydraulic cylinder support 33, main shaft 40, oil outlet 41 and oil inlet 42; upper base 12. The lower base 43 and the middle base 44 are integrated;

[0051] A bevel gear 25 is connected together with the A transmission shaft 27 through a key, and the No. 1 B transmission shaft 21 is respe...

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Abstract

The invention discloses a multi-friction-plate stacking loading mechanism and a large-amplitude bidirectional friction loading-type electro-hydraulic load simulator employing the same, and belongs to the field of electro-hydraulic servo control and automatic control. The invention aims at a problem that a bidirectional friction loading-type electro-hydraulic load simulator with no disturbance torque is difficult to achieve high-precision, high-dynamic and high-reliability large-amplitude moment loading through a conventional high-performance frictional material under the condition of a smaller structural dimension. The mechanism comprises a first constant rotation friction plate, six pins, a second swinging friction plate, a second constant rotation friction plate, a first swinging friction plate, a second friction plate supporting seat, and a first friction plate supporting seat. The simulator employing the above mechanism comprises an industrial control computer, an A / D data collection card, a D / A conversion circuit, a servo amplifier, a DSP movement control card, a big servo valve, a cod disc, a torque sensor, a torque motor, and a load simulation unit.

Description

technical field [0001] The invention relates to a semi-physical simulation model, which belongs to the field of electro-hydraulic servo control and automatic control. Background technique [0002] The electro-hydraulic servo control system is widely used in aerospace, industrial automation, robotics, machine tools and other high-tech fields due to its advantages of high control precision, large energy-to-volume ratio, and fast frequency response. The electro-hydraulic load simulator is a kind of ground hardware-in-the-loop simulation equipment, which is mainly used to simulate the aerodynamic moment load spectrum on the rudder surface of the steering gear during the flight of aircraft such as missiles and fighters, and realize the half-in-the-loop load spectrum under laboratory conditions. Reproduce the dynamic load of the measured object in the actual working process, simulate the dynamic load environment of the measured object in the actual work, and transform the classic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
Inventor 许宏光郑大可
Owner HARBIN INST OF TECH
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