An experimental method for backlash characteristics of an experimental platform

A technology of backlash and experimental platform, applied in the testing of mechanical components, testing of machine/structural components, instruments, etc., can solve the problem that the size of the moving guide cannot be easily switched, the platform adaptability is not wide enough, and the assembly and disassembly structure is lacking. And other issues

Active Publication Date: 2022-02-15
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] The dynamic characteristics experiment platform of the prior art conducts dynamic experiments on the gap mechanism. The moving pair can only move on the guide rod of the same size, and the size of the moving guide rod cannot be easily switched.
[0009] The dynamic characteristics experiment platform of the prior art performs dynamic experiments on the gap mechanism, and the adaptability of the platform is often not wide enough, lacking a more flexible assembly and disassembly structure

Method used

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  • An experimental method for backlash characteristics of an experimental platform
  • An experimental method for backlash characteristics of an experimental platform
  • An experimental method for backlash characteristics of an experimental platform

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Embodiment Construction

[0051]As shown in the figure: an experimental method for the backlash characteristics of an experimental platform, the experimental platform includes a tripod, a frame, a horizontal distance adjustment handle, a locking handwheel, a large gear, a U-shaped plate, a workbench, and a pinion , crank, rocker, executive slider, stepped guide rod, guide rod base, sensor, small platform, moving pair preload, screw, coupling, pinion shaft, rotating pair adjustment drive, tooth gap preload , motor, adjusting slider, fixed block, V-shaped slider, locking slider, fixed frame, pointer, dial;

[0052] The tripod is provided inside the workbench, the frame is installed on the tripod, and the motor is installed on the frame; the side surface of the frame includes a triangular surface; A triangular hole is opened, the output shaft of the motor extends upwards, and is connected to the pinion shaft through a coupling, and the pinion shaft transmits power to the pinion; the pointer is fixed at th...

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Abstract

An experimental method for backlash characteristics of an experimental platform. The experimental method for exploring the influence of backlash on mechanism dynamics is as follows: Step 1: Rotate the backlash pretensioner to fine-tune the position of the pinion; Step 2: Turn the locking The hand wheel fixes the large gear; Step 3: Turn the dial to make the pointer point to zero; Step 4: Turn the small gear and record the swing angle of the pointer, and record the corresponding backlash value at this time ; Step 5: Reversely turn the locking hand wheel to loosen the large gear; Step 6: Drive the motor to move, the output shaft of the motor drives the gear through the coupling, pinion shaft, pinion, bull gear, crank and connecting rod Step 7: Record the data measured by the sensor.

Description

technical field [0001] The invention relates to the field of dynamic performance of precision machinery, in particular to an experimental method for gear backlash characteristics of an experimental platform. Background technique [0002] With the continuous development of the field of precision machinery, especially in the field of aerospace, the mechanical system is gradually developing towards high speed, high stability and high precision, and the clearance of the kinematic pair is an important factor affecting the dynamic performance of the mechanism. However, due to the technical limitations of modern processing technology and the existence of assembly errors, clearances are often introduced into mechanical systems. For some places that require high precision, the existence of gaps often leads to mechanical vibration and various errors. Therefore, establishing a gap kinematic pair model, especially a gap kinematic pair model that is closer to reality and whose results a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M13/021G01M13/025
CPCG01M13/00G01M13/021G01M13/025
Inventor 胡波申朋黄娟黄龙燕盈萍尹来容
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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