A Composite Loading Device Realizing Linear and Torsion Loading
A composite loading and loading device technology, applied in measuring devices, using stable tension/pressure to test material strength, instruments, etc., can solve the problem of inability to achieve linear and torsional composite loading, inconvenient manufacturing and maintenance, and limited active loading. and other problems, to achieve the effect of convenient loading control, convenient control and high cost performance
Active Publication Date: 2019-06-07
NANJING UNIV OF SCI & TECH
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Problems solved by technology
[0004] However, at present, the main research in China is the electro-hydraulic servo loading system with hydraulic motor or actuator as the actuator. This loading method has disadvantages such as oil leakage, inconvenient maintenance, sensitivity to oil pollution and frequent failures. Nonlinear factors such as inertia and seal friction also greatly affect the loading accuracy; while the electric servo loading using linear servo motors has the disadvantages of being limited to active loading, relatively high cost, and inconvenient manufacturing and maintenance; currently loading The test bench is generally in a single loading form, and the dedicated servo loading test equipment is expensive, has poor versatility, and low cost performance, and cannot realize the combined loading form of linear and torsion
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[0055] A composite loading device that realizes linear and torsional loading, including a basic platform, a servo loading device and a measured servo device, wherein the basic platform includes a base 1 and a T-slot plate 2, and the servo loading device includes a servo loading motor 3, Servo loading motor support 4, bellows coupling 5-1, bellows coupling 5-2, torque and speed sensor 6 and torque and speed sensor support 7, the measured servo device includes the measured rotary motion mechanism 36 , fixed splint 31, lifting platform 32, encoder support 33, encoder 34;
[0056] In the basic platform, the top of the base 1 is provided with a T-slot plate 2, and the T-slot plate 2 has T-slot channels in two directions of length and width, which are used to adjust and install the lifting platform 32 to adapt to different specifications of the test. Servo mechanism, T-slot plate 2 is connected and fixed with base 1 through fasteners, servo loading motor support 4, torque and speed ...
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The invention discloses a combined loading device for realizing linear and non-linear loading, which comprises a basis frame, a servo loading device, a motion transfer device and a tested servo device. According to the loaded form of a tested mechanism, the combined loading device can realize linear and non-linear loading. In the case of linear loading, ball screw pairs are adopted as motion transfer structure and combined with linear guideway to restrain rotation output, thereby realizing the linear loading. As for the problem existing in electric-liquid loading, the combined loading device adopts a servo motor to replace a hydraulic valve to compose electric loading system, meanwhile, the combined loading device has the advantages of quick response, small size, simple structure, low cost, ease for controlling and the like. Compared to the existing test-beds with single loading form, the combined loading device, by the means of combining the linear loading form with non-linear loading form to compose a multi-functional combined loading test device, has the advantages of high versatility and easy operation.
Description
technical field [0001] The invention belongs to the technical field of control devices, in particular to a compound loading device for realizing linear and torsional loading. Background technique [0002] In recent years, with the growth of my country's comprehensive national strength and the needs of national defense construction, a number of equipment and equipment with independent intellectual property rights have been put into use, and projects such as high-thrust rockets, heavy-duty aircraft, aircraft carriers, and various new missiles have been launched successively. In this type of equipment, the linear and torsional motion servo drive system plays an extremely important role as a servo actuator, so it also puts forward higher requirements for its performance and reliability. [0003] By simulating loading and testing the dynamic characteristics of the servo loading system, the problems in the system can be found in time, and the performance parameters of the servo dri...
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IPC IPC(8): G01N3/08G01N3/26
CPCG01N3/08G01N3/26G01N2203/0026
Inventor 范元勋徐志伟雷建杰
Owner NANJING UNIV OF SCI & TECH