According to the structure and operating principle of the JSL-30 drill rig, a drill parameter tester was developed especially for percussion drill.
结合JSL - 30型钻机结构和工作原理，研制了适用于振动条件下的钻进参数检测系统。
And also the author introduces the characteristics and application benefits of the new chain-type percussion drilling, and analyzes the popularization and application prospect of the drill.
并介绍了新型链式冲击钻的特点及应用效益，进一步分析其推广应用的前景。
Using with rotation drilling and percussion -rotation drilling, drill efficiently.
采用回转或冲击回转钻进方法，钻进效率高。
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