Drill shank for special mine equipment and production process thereof
A special equipment and shank tail technology, which is applied in the direction of drilling equipment, heat treatment equipment, drilling equipment and methods, etc., can solve the problem of low service life of shank tails, and achieve the effect of ensuring the overall strength
Active Publication Date: 2020-05-12
无锡森亘精密机械有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a kind of shank used for mine special equipment and its production process, so as to solve the problem of low service life of shank proposed in the above-mentioned background technology
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0032] see Figure 1-4 , an embodiment provided by the present invention: a drill tail for special mine equipment and its production process, including a drill body 1, and the inside of the drill body 1 is composed of a first carburized layer 12, a second carburized layer 13 and a drill core 14 Composition, the first carburized layer 12 is located at the outer end of the drill body 1, the second carburized layer 13 is located at the inner side of the first carburized layer 12, the drill core 14 is located at the center position inside the drill body 1, and the lower end of the drill body 1 is set There is a threaded end 2, an annular thread 3 is provided on the outsi...
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Abstract
The invention discloses a drill shank for special mine equipment and a production process thereof, and relates to the technical field of special mine equipment. The drill shank aims to solve the problem that the service life of an existing drill shank is short. The interior of a drill shank body is composed of a first carburized layer, a second carburized layer and a drill shank core, wherein thefirst carburized layer is positioned at the outer end of the drill shank body; the second carburized layer is positioned on the inner side of the first carburized layer; the drill shank core is positioned at the center position of the interior of the drill shank body; a threaded end is arranged at the lower end of the drill shank body; an annular thread is arranged outside the threaded end; a spline is arranged at the upper end of the drill shank body; a mounting part is arranged at the upper end of the spline; a pressure reducing block is arranged in the mounting part; a pressure reducing cavity is formed in the pressure reducing block; a movable plug is arranged in the pressure reducing cavity; a limiting ring is arranged at the lower end of the movable plug; a plurality of compression springs are arranged between the limiting ring and the pressure reducing cavity in an annular array mode; and a threaded mounting column is arranged at the lower end of the pressure reducing block.
Description
technical field [0001] The invention relates to the technical field of special mine equipment, in particular to a shank used for special mine equipment and a production process thereof. Background technique [0002] The drill rod of the rock drilling tool is the part that bears the impact and torque of the rock drill. It should have high toughness and no plastic deformation. The drill tail can be a part of the drill, or it can be made into an independent tail rod. The drill tail is mainly used in mines. For operation, high-quality alloy steel is selected as the raw material. Commonly used drill tails include drill shoulder (flange) type, drill lug (lug) type and spline type. 22mm and 25mm, length 108mm and 159mm, manufactured by forging process, used for light rock drills, lug-type shanks are used for internal rotary medium-sized guide rail rock drills, drill rod diameters are 25mm and 32mm, spline-type shanks are often used for Heavy-duty guide rail type external rotary ro...
Claims
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IPC IPC(8): E21B1/00E21B17/03B23P15/00C23C8/22C23C8/66C21D1/18C21D9/00
CPCB23P15/00C21D1/18C21D9/0075C21D2211/001C21D2211/008C23C8/22C23C8/66E21B1/00E21B17/03
Inventor 张夏鸣
Owner 无锡森亘精密机械有限公司