Rotary picks, rotary drilling tools and rotary drilling rigs
A rotary and rotary drilling technology, which is applied in the field of rotary drilling tools, rotary drilling rigs, and rotary picks. It can solve the problems of poor rotation and inconspicuous pick rotation, so as to increase the service life and prevent partial wear. Effect
Active Publication Date: 2016-02-10
SANY HEAVY IND CO LTD (CN)
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the existing solutions can control the eccentric wear of the pick to a certain extent, these solutions make the rotation effect of the pick not obvious, so the effect of preventing the eccentric wear of the pick is also very poor
Method used
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[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0029] Below in conjunction with accompanying drawing, embodiment of the present invention is described in further detail:
[0030] Such as Figure 2-6b Shown is a rotary pick embodiment of the present invention, including a tooth tip 1, a pick stand 2, a pick body 3 and a tooth shank 4, wherein the tooth tip 1 is arranged on the pick stand 2, and the pick stand 2 is fixedly connected with the pick body 3, and the pick body 3 is fixedly connected with the tooth handle 4, and the tooth handle 4 is used to be rotatably arranged in the pick seat (not shown in the figure); the pick stand 2 and / or The cross section of the pick body 3 is polygonal.
[0031] In the above-mentioned embodiment of the p...
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The invention discloses a rotary pick, a rotary drilling tool and a rotary drilling rig, wherein the rotary pick includes a tooth tip, a pick stand, a pick body and a tooth shank, wherein the tooth tip is arranged on the pick stand , the pick table is fixedly connected to the pick body, the pick body is fixedly connected to the tooth shank, and the tooth shank is used to be rotatably arranged in the pick seat; the cross section of the pick table and / or the pick body is polygonal. In the rotary pick of the present invention, the pick table and / or the pick body have multiple sides, compared with the existing cylindrical pick table and the pick body of the existing pick, the pick of the present invention is in operation , the resistance of multiple sides can bring greater circumferential force to the pick, and it is easier to make the entire pick rotate, so that all sides of the pick are evenly worn, effectively preventing partial wear of the pick and increasing the pick. tooth life.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to a rotary pick, a rotary drilling tool and a rotary drilling rig. Background technique [0002] At present, most of the structures of cutting tools used in ore mining and coal mining operations are that the top of the pick body is inlaid with cylindrical or mushroom-shaped hard alloy, and the pick body acts as a hard alloy for fixing the tip and assisting the hard alloy to complete the cutting work. role. The structure of the current pick is as follows figure 1 As shown, it mainly includes four parts: tooth tip 1', pick table 2', pick body 3' and tooth shank 4'. The main cutting function is the tooth tip 1', which is mostly hard alloy; the pick table 2' is the part that fixes the tooth tip and connects the pick body, and is mainly cast from carbon steel and alloy steel; the tooth shank The main function of 4' is to fix the pick rotatably on the pick holder, and its cross se...
Claims
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IPC IPC(8): E21B10/46E21C35/183
Inventor 于兴哲任灿顾康家
Owner SANY HEAVY IND CO LTD (CN)