The role of vise in horizontal directional drilling rig

1. The vise can run stably and reliably with the horizontal directional drill bit, and the left and right clamping blocks can automatically center the drill bit, which ensures the complete cooperation between the surface of the tiger teeth on the slide bar and the drill bit, which not only avoids the power loss when the vise does not match the drill bit, but also The clamp rod is connected with the clamp through the dovetail groove. There are baffle plates on the two ends of the clamp with simple structure, convenient processing and convenient maintenance and replacement, which has a good limiting effect on the slider connected with the dovetail groove, and the vise clamp seat is flat. beautiful.

2. The 6-inch vice for excavation is at the front of the excavator and consists of front and rear vices. Both the front and rear vices can push the slips along the radial direction of the hydraulic cylinder to clamp the drill rod, and the rear vice can rotate relative to the front vice under the action of the hydraulic cylinder, so that the front and rear vices cooperate with each other to realize the drill rod clamping The entire vise is mounted on the floating support to protect the vise from the impact of the drill bit loading and unloading. The rectangular-section tunnel construction using the principle of earth pressure balance can be used for the construction of underground passages, cuttings, subway stations, subways, submarine tunnels, and municipal water supply and drainage, electric power, etc. , telecommunications, oil, natural gas and other pipelines. It will not affect the existing underground pipelines, road traffic, water traffic and various buildings on the ground. There is no noise and no environmental pollution during construction. Through the process controller and various sensors to monitor the construction status at any time, the entire construction process is in a controlled state, and the drilling axis, corner deviation and ground settlement of the rectangular tunnel are effectively controlled.