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Downhole hammer-type punching device

A hammer-type and hammer-head technology, applied in the field of downhole hammer-type punching devices, can solve the problems of consumption, low impact force, complex structure of impact and rotary combined drilling device, etc., and achieve good crushing effect, increase impact force, The effect of improving the crushing effect

Pending Publication Date: 2019-03-01
NENGCHENG GRP
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Problems solved by technology

[0004] Therefore, the technical problem to be solved in the present invention is to overcome the defect that the drill bit in the prior art has little impact on the underground rock; Eliminate the problem of ineffective energy consumption, so as to provide a downhole hammer punching device that can increase the impact force and improve the crushing effect without increasing the overall weight

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Embodiment Construction

[0039] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040]In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

[0041] Such as Figure 1-3 A specific implementation of the downhole hammer punching device shown is used to strike and break rocks in drilling, including a hammer head structure 1 connected to a suspension driving structure 4, which is arranged between the hammer head structure 1 The counterweight structure ...

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Abstract

The invention relates to the technical field of downhole material crushing, in particular to a downhole hammer-type punching device. The downhole hammer-type punching device comprises a hammer head structure (1), a counterweight structure (2) and an energy storage structure (3); the hammer head structure (1) is connected with a suspension driving structure (4); the counterweight structure (2) is arranged on the hammer head structure (1); and the energy storage structure (3) is arranged between the hammer head structure (1) and the counterweight structure (2), when the suspension driving structure (4) drives the hammer head structure (1) to move upwards, part of gravitational potential energy of the counterweight structure (2) is converted into stored energy, and the stored energy is released to the hammer head structure (1) when the suspension driving structure (4) freely releases the hammer head structure (1) to descend. According to the downhole hammer-type punching device, under thepremise without increasing the overall weight, impact force is improved, and the crushing effect is improved.

Description

technical field [0001] The invention relates to the technical field of underground material crushing, in particular to an underground hammer punching device. Background technique [0002] One of the existing geological drilling technologies adopts rotary drilling. The deeper the drilling depth of the geological drilling rig, the drill pipe gradually changes from the rigidity to the elasticity. At this time, the rotation speed input by the wellhead cannot be effectively reflected in the bottom On the drill bit, too fast wellhead speed will cause the drill pipe to be twisted into a twisted shape, and even plastic yielding will cause damage to the drill pipe. Therefore, its speed is limited by the transmission depth, and its cutting efficiency will gradually decrease with the increase of drilling depth. to very low. Another way is percussion drilling, which can adapt to the drilling of deep holes. This method uses the impact force of the suspended drilling tool to break the ro...

Claims

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Application Information

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IPC IPC(8): E21B1/02F03G3/00F16F15/28
CPCE21B1/02F03G3/00F16F15/28
Inventor 王斌坚
Owner NENGCHENG GRP
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