Large-mining-height hydraulic support
A technology of hydraulic support and large mining height, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc. It can solve problems such as unreasonable structure, ineffective support strength, low production efficiency, etc., and achieve weight reduction , Reasonable and reliable structure design, low cost effect
Inactive Publication Date: 2014-05-28
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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Problems solved by technology
[0004] In order to solve the problems that the existing large mining height hydraulic support has low production efficiency and the support strength cannot be effectively guaranteed due to unreasonable structure, the present invention provides a large mining height hydraulic support
[0006] The selection of the parameters of the large mining height hydraulic support is obtained through a large number of repeated tests. While reducing the weight of the hydraulic support, the support strength is ensured, which overcomes the low production efficiency and support problems caused by the unreasonable structure of the existing large mining height hydraulic support. The problem that the strength cannot be effectively guaranteed
Method used
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Embodiment Construction
[0010] The large mining height hydraulic support includes a base 1 and a top beam 2 located above the base 1, a double telescopic column 3 hinged to the two is arranged between the base 1 and the top beam 2, and a cover beam 4 is hinged at the rear end of the top beam 2, A front connecting rod 5 and a rear connecting rod 6 are arranged between the rear part of the base 1 and the lower part of the cover beam 4, and the front part of the top beam 2 is provided with a telescopic beam 7, and the front end of the telescopic beam 7 is hinged with three successively hinged The side guard plate 8, a jack 9 hinged to the top beam 2 and the upper part of the cover beam 4 is arranged between the rear part of the top beam 2; : 2.36, the height of the side guard 8 is 57% of the total height from the roof beam 2 to the base 1, and the ratio of the width of the roof beam 2 or the base 1 to the height of the roof beam 2 to the base 1 is 1:4.16.
[0011] In the specific implementation process,...
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The invention provides a large-mining-height hydraulic support. The problem that an existing large-mining-height hydraulic support is not reasonable in structure, so that production efficiency is low, and supporting intensity cannot be effectively guaranteed is solved. The large-mining-height hydraulic support comprises a base and a top beam arranged above the base. Double telescopic stand columns hinged to the base and the top beam are arranged between the base and the top beam. The back end of the top beam is hinged to a shield beam. A front connecting rod and a back connecting rod hinged to the base and the shield beam are arranged between the back portion of the base and the lower portion of the shield beam. A telescopic beam is arranged on the front portion of the top beam. The front end of the telescopic beam is hinged to three face guard plates which are hinged in sequence. A jack hinged to the top beam and the shield beam is arranged between the back portion of the top beam and the upper portion of the shield beam. The length ratio of the distances from the hinged position of the double telescopic stand columns on the top beam to the front end and the back end of the top beam is 1 : 2.36. The heights of the face guard plates are 57% of the total height from top beam to the base. The ratio of the width of the top beam or the base to the height from the top beam to the base is 1 : 4.16. The weight of the hydraulic support is reduced, and supporting intensity is effectively guaranteed.
Description
technical field [0001] The invention relates to a hydraulic support for coal mines, in particular to a large mining height hydraulic support. Background technique [0002] With the continuous development of fully mechanized mining technology with large mining height and the continuous improvement of hydraulic support manufacturing technology, the large mining height working face will be the preferred fully mechanized mining technology for thick coal seam mining in the future, and the reasonable increase of the support height is also the key to the development of large mining height working face The inevitable trend. [0003] At present, the center-to-center distance of the 7-meter large mining height bracket in China is 2.05 meters, and the weight generally exceeds 60 tons. The requirements for mine conditions are relatively high, the weight of the support is relatively large, the production efficiency is low, and the support strength cannot be effectively guaranteed. Con...
Claims
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Inventor 闫振东赵光明刘瑞琴栗林波许胜武程东梅陈桃杯丁雁徐佳佳
Owner SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD