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链条倍速给进机构结构紧凑,有限设备空间内能获得较大的钻机行程,适合坑道取心钻机;但是链条传动在使用过程中反复受载,节距会变大,长度会增加,而且传动具有冲击。复合链条张紧装置采用油缸和弹簧复合作用来张紧链条、缓解冲击,张紧油缸与给进主油缸联动,保证油缸在给进或者起拔动作时张紧油缸都由高压油驱动张紧链条,钻机在每个角度状态链条的张紧可靠。ZDY1000G型全液压坑道钻机采用复合链条张紧装置,经过工业性试验,验证了该装置的实用性和可靠性。
The chain double speed feeding mechanism has the advantages of compact structure, large drilling rig stroke in the limited equipment space and is suitable for a tunnel coring drilling rig; however, the chain drive is repeatedly loaded during use, the pitch will become larger and the length will increase, and the transmission has Impact. Compound chain tensioning device adopts the compound action of oil cylinder and spring to tension the chain to relieve the impact. The tensioning cylinder is linked to the main cylinder to ensure that the tensioning cylinder is driven by the high pressure oil when feeding or pulling. , The drilling rig at each angle status of the chain tension and reliable. ZDY1000G full hydraulic tunnel drilling rig with composite chain tensioner, after industrial tests, verify the practicality and reliability of the device.