A coal shearer throwing impact test device
A technology of impact testing and shearer, applied in the direction of impact testing, measuring devices, testing of machine/structural components, etc., can solve problems such as scraper wear, scraper scraper wear, uneven bottom plate, etc., to reduce costs , the effect of increasing profits
Active Publication Date: 2020-03-17
山西量界数字科技有限公司
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Problems solved by technology
[0008] The specific technical problem to be solved by the present invention is the wear problem of the scraper due to the impact of the scraper machine, and the wear problem of the scraper under the situation of simulating the unevenness of the underground floor and the inclination angle, and obtaining the impact law of coal throwing and its influencing factors , and provide a shearer throwing coal impact test device
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Embodiment Construction
[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] as attached figure 1 and attached figure 2 As mentioned above, implement the technical scheme of a shearer coal throwing impact test device provided above in the present invention, the scheme includes a hydraulic rod I1, a base 2, a hydraulic rod II3, a vibration sensor 4, a pressure sensor 5, and a coal drop platform 6. Shearer drum 7 and box body 8; it is formed under the coal mining and coal throwing mechanism with a coal drop platform 6, and five rows and fifteen columns of pressure sensors 5 are arranged on the horizontal surface of the coal drop platform 6. It is used to accept the coal thrown by the shearer; four vertically distributed hydraulic rods 3 are hinged on the bottom surface of the coal falling platform 6, and a vibration sensor 4 is arranged on one side of the four hydraulic rods 3, and is connected with the signal...
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A coal cutter coal throwing impact test device is provided with a coal falling platform in the position of a coal throwing falling point, and pressure sensors are arranged on the coal falling platformto carry impacting coal briquettes; four vertically distributed hydraulic rods are hinged to a lower end face of the coal falling platform, and one sides of the hydraulic rods are provided with vibration sensors which are in communication connection with a signal collection card and an industrial control computer thereof; hydraulic rods and a supporting mechanism thereof are arranged on a pedestal, and the top of the supporting mechanism is provided with a coal cutter roller connected with a motor output shaft; and the coal cuter roller performs coal cutting on a coal wall formed by pulverized coal in a sticking mode, and an impact test of coal cutter coal throwing is realized.
Description
technical field [0001] The invention relates to an impact testing device, in particular to an experimental device for testing the impact of coal lumps dropped by a shearer in an underground coal mine on a scraper. Background technique [0002] During the process of transporting materials, the scraper conveyor is often impacted by the hard coal lumps dropped by the shearer drum. When hard substances are stuck in the chute, severe wear is prone to occur. The impact and wear of the scraper conveyor caused by the coal shearer throwing off the coal mainly include: the wear of the middle groove, the wear of the scraper chain, and the wear of the scraper. [0003] Middle groove wear: After quenching and tempering treatment of the chain and scraper, the hardness is HRC38-42, the material of the middle plate is hot-rolled 16Mn, and its hardness is HRC180-200, the burrs and sharp protrusions on the chain are for the middle plate It is equivalent to the edge of a knife, and the impac...
Claims
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IPC IPC(8): G01M7/08
CPCG01M7/08
Inventor 李博陶晓文庞新宇杨琨杨兆建
Owner 山西量界数字科技有限公司