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Crane teaching experiment platform

An experimental platform, crane technology, applied in the direction of teaching models, educational tools, instruments, etc., to achieve the effect of enhancing learning interest

Inactive Publication Date: 2015-11-11
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing experimental equipment, there is no experimental equipment that simulates the tilting condition and can dynamically test the load distribution of the outriggers at the same time.

Method used

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  • Crane teaching experiment platform
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  • Crane teaching experiment platform

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0037] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0038] Lifting mechanism: such as figure 1 , image 3 and Figure 4 As shown, the pulley 2-1 and the boom assembly 1 can rotate around the shaft, and the rear pulley 2-1 is wound with a steel wire rope. The pulley 2-2 is installed on the pin shaft at the head of the boom and can rotate around the shaft. The pulley 2 -1 and the pulley 2-2 wire rope change the winding direction of the wire rope so that it is wound onto the reel 10 smoothly. The reel 10 is connected to the left end of the output shaft of the hoisting reducer 13, the hoisting motor 12 is connected to the input end of the hoisting reducer 13 through the hoisting motor input adapter plate 11, and the hoisting encoder 14 is passed through the hoisting encoder. The adapter plate 15 is connected to the right end of the output shaft of the hoistin...

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Abstract

The invention provides a crane teaching experiment platform. A maximum hoisting load is 50kg and a maximum hoisting speed is 0.4m / s. A rated rotating speed is 2.0 r / min, a variable amplitude period is 20s and a maximum lifting altitude is 2.5m. The platform possesses lifting, rotation and variable amplitude mechanisms. A system adopts volume speed regulation hydraulic transmission. A frequency-conversion hydraulic pump station provides a power source. Lifting and rotation mechanism actuator adopts a gerotor motor and the variable amplitude mechanism adopts a hydraulic cylinder. A strain gauge is pasted on an arm frame so as to measure a dynamic stress on the arm frame of different mechanism motion under different conditions. Speeds of rotation and lifting and an accelerated speed are measured by an encoder installed on an output shaft of a corresponding decelerator. An elevation angle of the arm frame is measured by an inclination angle sensor installed on the arm frame. Heights of four support legs are adjusted so as to simulate a crane inclination condition. The four support legs are equipped with load sensors so as to measure experiment platform support pressure distribution. The experiment platform can complete a demonstration experiment, a mechanical analysis integration experiment and an open PLC programming experiment.

Description

technical field [0001] The invention relates to a crane, in particular to a crane teaching experiment platform system which is driven by hydraulic frequency conversion and can carry out force and transmission tests for the teaching of undergraduates in the direction of lifting. Background technique [0002] Crane professional experiment is an important practice link to train students in the direction of crane machinery to use the relevant knowledge they have learned, use experimental methods to study crane machinery, and solve practical problems in crane machinery engineering. On the one hand, it is a comprehensive teaching method to systematically grasp the interaction principles of hoisting machinery performance, operating methods, and operation safety. In order to meet the needs of the experimental class and be able to be stored on the floor at the same time, it must meet the load capacity of the floor, that is: 250Kg / m 2 . The teaching experiment platform can complete ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/02
Inventor 屈福政孙铁兵孙杰锋
Owner DALIAN UNIV OF TECH
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