Experimental method for backlash characteristic of experiment platform
A technology of backlash and experimental platform, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, 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 are not enough. structural issues
Active Publication Date: 2021-02-26
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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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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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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The invention discloses an experimental method for the backlash characteristic of an experimental platform. The experimental method for exploring the influence of backlash on mechanism dynamics comprises the following steps: step 1, rotating a backlash pre-tightening piece to finely adjust the position of a pinion; step 2, rotating a locking hand wheel to fix a large gear; step 3, rotating a dialto enable a pointer to point to a zero scale; step 4, shifting a pinion, recording the swing angle of the pointer, and the recording a corresponding gear backlash value at the moment; step 5, reversely rotating the locking hand wheel to loosen a large gear; step 6, driving a motor to move, and enabling an output shaft of the motor to drive an execution sliding block to move back and forth on a stepped guide rod through a coupler, a small gear shaft, the pinion, the large gear, a crank and a connecting rod; and step 7, recording 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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Login to View More 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