Anti-skid drilling tool for stick-slip reduction with multi-start screw
A drilling tool and helical transmission technology, which is applied to drilling equipment, drill pipes, drill pipes, etc., can solve problems such as the influence of drilling tool performance and the inconvenience of drilling operations, and achieve high-efficiency rock breaking, fast rotation speed, and high transmission efficiency Effect
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[0015] The present invention will be further described below in conjunction with accompanying drawing:
[0016] see figure 1 , the anti-sluggish drilling tool that utilizes the multi-head screw to achieve viscosity-slip reduction is composed of an upper joint assembly, a vibration-absorbing assembly and a lower assembly. The upper joint assembly is installed at the rear end of the vibration-absorbing assembly, and the lower assembly is installed at the front end. The upper joint assembly includes an upper joint 1, a disc spring 4, a central pipe 5, a rectangular sealing ring a2, an upper joint gasket 3, and a gasket 7. The rectangular sealing ring a2 is installed on the inner circumference of the front end of the upper joint 1, and the The gasket 7 is installed on the central tube 5, the front end of the disc spring 4 is in contact with the gasket 7, the rear end is in contact with the upper joint gasket 3, and finally the upper joint gasket 3 is installed on the central tube ...
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