A rope coring drill
A technology of core drilling tools and ropes, which is applied in the direction of extracting undisturbed core devices, earthwork drilling and mining, etc., which can solve the problems of scrapped holes, short drilling intervals, and slow drilling speed of drilling tools, so as to prolong the service life and improve Excellent drilling speed and working conditions
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Embodiment 1
[0032] Please refer to figure 1 The structure on the left side of the drilling tool is shown. This structure provides a core drilling tool for inner drill without lifting the drill bit, retaining spring and core protection rope. Drilling tools are composed of outer pipe assembly and inner pipe assembly.
[0033] The outer pipe assembly comprises the bullet stopper 2, the bullet chamber 4, the outer pipe 11, the reamer 23, the extra joint 16, and the outer drill bit 19, wherein the outer drill bit is an internal spline drill bit with chamfers (such as image 3 , Figure 4 ), the above-mentioned parts are connected with threads in order from top to bottom.
[0034] The inner tube assembly is provided with spear head 1, tension spring 5-1, snap caliper 5-2, recovery tube 3, and clip rack 5-3 from top to bottom. The combination of the above components forms the clip in the inner tube assembly. Mechanism, during installation, first recovery pipe 3 is installed on the bullet fram...
Embodiment 2
[0042] Please refer to figure 1 The structure on the right side of the drilling tool is shown, and this structure provides a split-type stepped drill bit, spring protection, and rope core drilling tool. Drilling tools are divided into outer pipe assembly and inner pipe assembly. The top of the reamer 23 is the same as the cable coring drill of embodiment 1, the bottom of the reamer 23 is connected to the drill seat 21 by a screw, and the inner and outer sides of the lower end of the drill seat 21 are threaded, and the external thread is connected with the outer drill bit 19. The inner thread is connected with the inner drill bit 20 to form the outer pipe assembly of this type of drilling tool structure; the inner pipe assembly is basically the same as the structure in the first embodiment, the difference is that the lower end of the inner pipe 14 is replaced by a retaining spring seat 22 External spline internal drill bit 20 with chamfer, drilling state (such as figure 1 rig...
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