A drill rod buffer positioning device for a hydraulic rock drill
A technology of hydraulic rock drill and buffer device, which is applied to the driving device of rotary combined drilling, percussion drilling, reciprocating drilling rig, etc., which can solve the problems of inconvenient use and achieve fast replacement, reasonable design and simple structure Effect
Active Publication Date: 2016-08-10
荣成中磊科技发展有限公司
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Problems solved by technology
[0004] In order to overcome the rigid connection between the drill rod and the drill shank in the prior art, it is easy to cause severe vibration and wear between the drill shank and the parts in the machine head body, and there is no axial limiter between the drill rod and the drill shank. Inconvenience, the present invention provides a drill rod buffer device for a hydraulic rock drill with simple structure, reasonable design, easy use, and fast drill replacement
Method used
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Embodiment Construction
[0012] exist figure 1 Among them, a drill rod buffer device for a hydraulic rock drill, which includes a head body 1 of the rock drill and a shank 2 installed in the head body 1 for installing a drill rod.
[0013] like figure 1 As shown, the cross-section of the inner cavity of the shank 2 is a hexagon that coincides with the tail of the drill rod.
[0014] exist figure 1 Among them, a drill rod buffer device for a hydraulic rock drill, which also includes an upper coupling plate 3 , a buffer body 4 and a lower coupling plate 5 . The upper coupling disc 3 and the lower coupling disc 5 are made of metal materials, and the buffer body 4 is made of rubber or other elastic materials.
[0015] like figure 1 As shown, the upper end of the upper coupling disc 3 is connected to the end flange of the head body 1, the lower end of the upper coupling disc 3 is fixedly connected to one end of the buffer body 4, and the upper end of the lower coupling disc 5 is fixed to the other end ...
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The invention relates to a drill rod buffering and positioning device for a hydraulic rock drill, which includes a head body of the rock drill and a drill shank installed in the head body, and is characterized in that it is also provided with an upper connecting plate, a buffer body and a lower connecting plate connected in sequence The connecting plate, the upper connecting plate is connected with the flange of the machine head body, the upper connecting plate and the buffer body are coaxially opened with a penetrating drill tail cavity, and the lower connecting plate is coaxially provided with a drill tail cavity, a shoulder and a drill rod cavity , on the same side of the upper connecting plate, the buffer body and the lower connecting plate, respectively have shank insertion grooves. The rebound impact force generated on the drill rod of the present invention is absorbed by the buffer body, avoiding the rigid impact between parts, and improving the service life of the drill rod and the machine body; It is necessary to manually hold the drill rod. The invention has the advantages of simple structure, reasonable design and convenient use.
Description
technical field [0001] The invention relates to a driving device for combined impact and rotation drilling, in particular to a drilling rod buffering and positioning device for a hydraulic rock drill. Background technique [0002] The hydraulic rock drill is a new type of rock drill that has emerged in recent years. It uses circulating high-pressure oil as the power to drive the drill rod and drill bit, and drills holes in the rock mass by means of impact rotation. Compared with pneumatic rock drills, it has many advantages such as less energy consumption, fast rock drilling speed, high efficiency, low noise, easy control, less drill stuck accidents, and long life of drilling tools. It has developed rapidly in recent years. [0003] The hydraulic rock drill is mainly composed of two parts: the impact mechanism and the slewing mechanism. The impact mechanism is composed of cylinder, piston, reversing valve, accumulator and other main components. Through the reversing of the ...
Claims
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IPC IPC(8): E21B1/26E21B6/08
Inventor 刘新刚刘建维
Owner 荣成中磊科技发展有限公司