A falling ball testing machine for testing the optimum impact energy of materials
A technology of falling ball test and collision energy, which is applied in the direction of measuring device, machine/structural component test, instrument, etc. It can solve the problems of poor accuracy and low test efficiency, and achieve high accuracy, avoid human adjustment, and easy control Effect
Active Publication Date: 2016-09-07
ZHEJIANG UNIV OF TECH
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[0004] In order to overcome the shortcomings of low test efficiency and poor accuracy of the existing falling ball testing machine, the present invention provides a falling ball testing machine with high test efficiency and good precision for testing the best collision energy of materials
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[0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] refer to Figure 1 to Figure 5 , a falling ball testing machine for testing the optimal collision energy of materials, through the operation of the system, steel balls 15 with different diameters or shapes are automatically lifted to a specified height and drop to impact materials. The testing machine includes: brackets, lifting devices, falling balls The control device, the steel ball reset mechanism and the single-chip microcomputer control system, the support 1 is fixed on the base 7 for supporting the lifting device and the photoelectric sensor 12; the lifting device is above the base 7, including the sprocket 4 on the support 1, the chain 2, The worm gear and worm mechanism and the lifting bar 3 that is horizontally set up between the two brackets, the two ends of the lifting bar are connected to the same side of the two chains 2, and the chain drives the b...
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A falling ball testing machine for testing the optimal collision energy of materials, including a support, a base, a lifting device, a falling ball control device and a reset mechanism, a turntable is placed on the base, and the turntable is connected to a rotating drive motor. On the turntable is a material particle bed, and the support is placed on Above the base, the lifting device is installed on the bracket. The falling ball control device includes an electromagnet. The electromagnet is installed on the lifting device. The electromagnet is located directly above the material particle bed. The area of the electromagnet is larger than the material particle bed. There are multiple spherical grooves for absorbing steel balls. The reset mechanism includes cranks, sliders, guide rails, push rods, hinges and right-angle rods. The two right-angle rods are arranged opposite to each other to form a quadrilateral. One end of the push rod is connected, the other end of the push rod is connected with the slide block, the slide block is connected with the lower end of the crank, and the upper end of the crank is linked with the lifting device. The invention has high test efficiency and good precision.
Description
technical field [0001] The invention relates to a ball mill or other sphere pulverizing equipment, especially a falling ball testing machine. Background technique [0002] The use of ball mills in mineral processing, metallurgy, building materials, chemical industry, ceramics, electric power and other fields has a long history, but the problem of extremely low efficiency has not been solved, and the collision characteristics of the grinding medium in the cylinder directly affect its grinding performance. efficiency. Specifically, from the perspective of grinding media colliding and crushing materials, excessive collision energy will lead to waste of energy, and too small collision energy cannot break materials. Therefore, for specific materials, there is an optimal grinding medium collision energy If the optimal collision energy of a specific material is obtained, the energy consumption of the ball mill can be improved. This requires a device that can simulate the collision...
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IPC IPC(8): G01M99/00
Inventor 孙毅梁曼单继宏金晓航应男
Owner ZHEJIANG UNIV OF TECH