Ball dropping testing machine for testing optimal collision energy of materials
A ball drop test and collision energy technology, applied in measuring devices, testing of machine/structural components, instruments, etc., can solve the problems of low test efficiency and poor accuracy, and achieve high accuracy and repeatability without artificial adjustment. high effect
Active Publication Date: 2014-09-03
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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The invention discloses a ball dropping testing machine for testing the optimal collision energy of materials. The ball dropping testing machine for testing the optimal collision energy of the materials comprises a support, a base, a lifting device, a ball dropping control device and a reset mechanism, wherein a rotary table is placed on the base and is connected with a rotary driving motor, a material particle bed is arranged on the rotary table, the support is arranged on the base, the lifting device is installed on the support, the ball dropping control device comprises an electromagnet, the electromagnet is installed on the lifting device and located over the material particle bed, the area of the electromagnet is larger than the area of the material particle bed, multiple spherical grooves used for attract steel balls are formed in the lower surface of the electromagnet, the reset mechanism comprises cranks, sliding blocks, a guide rail, push rods, hinges and two right-angled rods, the two right-angled rods are arranged oppositely so that a quadrangle is defined, the hinges are arranged at the right-angled positions of the right-angled rods, one end of each hinge is connected with one end of the corresponding push rod, the other end of each push rod is connected with the corresponding sliding blocks, each sliding block is connected with the lower end of the corresponding crank, and the upper end of each crank is in linkage with the lifting device. The ball dropping testing machine for testing the optimal collision energy of the materials has the advantages that the testing efficiency is high, and the accuracy is high.
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