The ZY3000/10/20 Shield Hydraulic Support Improved Design

Now the coal mining, mining methods have changed from original shot to mechanized mining, hydraulic support in mechanized coal mining operations have a very important role, is essential to support mechanized mining equipment. The activities of hydraulic support device side guard, as the auxiliary support structure, to improve support performance of the cover and has an important role in anti-gangue.This paper analysis the hydraulic design, production and use status. Pointed out the development trend of the hydraulic support. it introduced the hydraulic classification, characteristics, design elements and the common structure, according the original conditions design of the ZY3000/10/20 cover hydraulic support. Analyzed and discussed this type support damaged underground, through the use of support underground survey, site physical inspection and design requirements compliance verification results, the original design of the check, then the analysis identified the activities of the support device side plates to cause a lot of damage. according the causes of damage to clear the design improvement direction, and determine the optimization goal. Then use Solidworks software to build a entity solid model of top beam activities side plates, combined with the use and damage condition of the activities side plates, using Solidworks software COSMSXpress tool to identified on the activities side plates three kinds of constraints and load way, choose the side plates to simulate the normal activities of the state of restraint use and loading, simulation support of frame when the jack to adjust the state of constraint and loading, the process of the adjacent support rose frame phenomenon occurs bound to bite and loading activities, in three ways to load the side plates to analyze the results of the activities, under the load board to optimize side protection, after optimization of the activity side plates to meet the objectives and requirements, it can better adapt to the actual use conditions.In addition, improved the original side of the jack forward, back fluid pipeline layout, shorten the length of the connector block, extended the corresponding length of hose to make sure the connector block don't exposed top beam, and reduce the connector block damage.Increase two-way lock, to avoid the side of the jack rod to push free stretch in the floating state. Finally, work out the ZY3000 hydraulic support overhaul scheme on the basis of the optimization results.