TWI471483B - Pneumatic re - use pneumatic hammer drilling - Google Patents

Description

Air pressure reuse pneumatic hammer drill

The invention relates to a hole drill for drilling a ground layer, in particular to a pneumatic hammer drill which drives a heavy hammer through a pneumatic force and continuously hits a drill hole downward by gravity.

Generally speaking, in the process of building construction, the drilling of the stratum must be carried out through the drilling and excavation equipment, and the types of the site are soft and hard depending on the differences in different regions, especially in Southeast Asian countries (such as Malaysia). It is a very hard rock formation, especially the deeper the rock formation will be harder.

The prior art is the invention patent of "rock disk drilling and boring device" of TW Patent Publication No. I278559; the prior art is transmitted to the device through a rotary power source, and cooperates with the gravity of the drilling device itself and the pneumatic unit of the device reciprocates up and down. The method enables the drill bit to continuously impact the shattered rock formation with downward gravity; the device comprises: an adapter, which provides a structure for rotating transmission and intake vibration; a casing, one end of which is coupled to the lower end of the connecting shaft, and A joint is connected, and the joint is combined with a pneumatic unit, which is combined with a drill bit, so that the pneumatic unit drives the drill bit to generate an up and down reciprocating vibration, so that the rock layer can be shattered by continuous downward impact.

However, in the actual construction process of the prior art, the pressure gas used in the prior art cannot be effectively reused after the intake air is shaken, resulting in waste of power resources, and the bit breaks into gravel after the impact of the rock layer, and must be The gravel and muddy water are introduced into the excavator, and then the whole device is taken out of the working well. After being moved to the side to be rotated, the excavator will be opened to completely dump the gravel and the muddy water, thus the time-consuming process. Not only will the delay of the construction period be caused, but the labor cost will be increased more seriously. It does not meet the construction requirements of the engineering industry to shorten the construction period and save manpower and material costs.

The main object of the present invention is to provide a pneumatic hammer drill capable of reusing air pressure. The invention not only saves the physical and mechanical cost of power resources, but also can effectively construct and shorten the working hours of the construction, so as to achieve the labor saving of the engineering industry. Material cost and efficient construction needs.

According to the above main object, the present invention provides a pneumatic hammer drilling method for pneumatic re-use, the pneumatic hammer drill includes: a rotating driving head that is rotated by an external force and has an intake pipe, and the rotating driving head is provided with a rotating head a second row of stone exhaust ducts; a cover disposed outside the rotating head and having an air inlet communicating with the air inlet duct, the outer cover having a temporary connection with the second row of exhaust ducts Locating a space, and providing a discharge exhaust outlet connected to the temporary space on the outer cover; and extending into the ground surface by the rotating head and having a guiding pipe communicating with the intake pipe a unit, wherein the extending into the surface action unit comprises: an air hammer pipe communicating with the guiding pipe, wherein the air hammer pipe is provided with a hollow air hammer piston and a part of the air hammer pipe extending outside the pipe a drill bit that strikes the air hammer piston; an integrated cover having a return air space communicating with the air hammer pipe and fixed to the air hammer pipe; a stone exhaust pipe fixed to the integrated cover and side by side with the air hammer pipe The row of stones The bottom is connected to a row of stone inlets communicating with the outside, and the upper part is connected to a first row of stone exhaust pipes communicating with the row of stone pipes, and the first row of exhaust pipes is exhausted with the second row of stones The duct is in communication; an exhaust inlet disposed on the integrated cover and communicating with the return air space; and an exhaust duct connecting the exhaust inlet and the first exhaust exhaust duct, and the exhaust The inlet has a check valve in the exhaust duct.

Through the above technical solution, the beneficial effect achieved by the present invention over the essence of the prior art is that when the air pressure pushes the hammer piston of the present invention to hit the drill bit, the air pressure is pushed through the return air space and the exhaust inlet. The check valve enters the exhaust pipe, and then enters the first row of exhaust pipe and is ejected from the exhaust gas exhaust outlet. Therefore, the gravel and the muddy water can be quickly taken out, which not only saves the material cost of the power resource, but also saves the material cost of the power resource. The construction time can be shortened to achieve the manpower, material cost and efficient construction needs of the engineering industry.

10‧‧‧Pneumatic hammer drill

20‧‧‧ Cover

21‧‧‧Air inlet

22‧‧‧Interim space

23‧‧‧Exhaust gas outlet

30‧‧‧Rotating head

31‧‧‧Drive Department

32‧‧‧Intake pipe

33‧‧‧Second row of stone exhaust pipes

40‧‧‧Into the surface action unit

41‧‧‧Guided pipeline

42‧‧‧Air hammer pipe

421‧‧‧Air hammer piston

422‧‧‧ drill bit

423‧‧‧Exhaust through hole

424‧‧ ‧ spring

425‧‧‧Perforation

43‧‧‧ integrated cover

430‧‧‧return space

431‧‧‧Exhaust inlet

432‧‧‧Exhaust pipe

433‧‧‧ check valve

434‧‧‧Auxiliary exhaust inlet

435‧‧‧Auxiliary exhaust duct

436‧‧‧Auxiliary check valve

44‧‧‧stone pipeline

441‧‧‧ row of stone entrance

45‧‧‧First row of stone exhaust pipes

46‧‧‧through pipeline

47‧‧‧Guide cover

Figure 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is a perspective view showing another perspective of Fig. 1 of the present invention.

Fig. 3 is a cross-sectional plan view showing the "Fig. 1" of the present invention.

Fig. 4 is a schematic view showing the partial pressure flow of the upper portion of Fig. 3 of the present invention.

Fig. 5 is a schematic view showing a partial pressure flow row of the enlarged portion of Fig. 3 of the present invention.

Fig. 6 is a partial re-amplified atmospheric pressure flow diagram of Fig. 5 of the present invention.

Fig. 7 is a schematic view showing the upper part of the pneumatic flow row in the "Fig. 3" of the present invention.

The preferred embodiments and detailed technical aspects of the present invention are described in conjunction with the drawings.

Referring first to FIG. 1 to FIG. 3, the pneumatic hammer drill 10 of the present invention includes: a rotary driving head 30 that is rotated by an external force and has an intake duct 32, and the rotary driving head 30 is disposed. There is a second row of exhaust gas ducts 33, and the top end has a driving portion 31 connected to the external source of rotation; a cover 20 disposed outside the rotating head 30 and having an air inlet 21 communicating with the intake duct 32 The outer cover 20 has a temporary space 22 communicating with the second row exhaust duct 33, and the outer cover 20 is provided with a row exhaust outlet 23 communicating with the temporary space 22; a surface action unit 40 that can be driven by the rotary driving head 30 and has a guiding duct 41 communicating with the air inlet duct 32, wherein the guiding duct 41 is provided with a guiding cover 47 having a tapered surface, and The grounding action unit 40 includes: an air hammer pipe 42 communicating with the guiding duct 41, wherein the air hammer pipe 42 is provided with a hollow air hammer piston 421 and a part of the air hammer pipe 42 And the bit 422 is struck by the hammer piston 421, and the bit 422 is sleeved with a buffer The hammer piston 421 strikes the action spring 424, and the drill bit 422 is provided with an exhaust through hole 423 communicating with the air hammer pipe 42 via the spring 424 gap, and the air hammer pipe 42 is disposed opposite to the spring 424. Also provided is a perforation 425 communicating with the return air space 430; a return air space 430 and The air hammer pipe 42 communicates with and is fixed to the integrated cover 43 of the air hammer pipe 42; a stone discharge pipe 44 fixed to the integrated cover 43 and juxtaposed with the air hammer pipe 42 is connected to the lower side of the stone pipe 44 a row of stone inlets 441 communicating with the outside, and a first row of stone exhaust ducts 45 communicating with the row of ducts 44, and the first row of exhaust ducts 45 and the second row of stones The exhaust duct 33 is in communication with; an exhaust inlet 431 disposed on the integrated cover 43 and communicating with the return air space 430; and an exhaust inlet 431 and the first exhaust exhaust duct 45 An exhaust duct 432 has a check valve 433 in the exhaust inlet 431 to the exhaust duct 432. In addition, the extending surface action unit 40 further includes a through pipe 46 extending through the integrated cover 43 and juxtaposed with the air hammer pipe 42. The extended surface action unit 40 further includes a through hole assembly 43. And an auxiliary exhaust inlet 434 communicating with the return air space 430; and an auxiliary exhaust duct 435 communicating with the auxiliary exhaust inlet 434 and the first exhaust exhaust duct 45, and the auxiliary exhaust duct 435 and The intersection of the first row of exhaust gas conduits 45 is higher than the intersection of the exhaust ducts 432 and the first row of exhaust ducts 45, and the auxiliary exhaust inlets 434 are within the auxiliary exhaust ducts 435 The auxiliary check valve 436 has a horizontal line height higher than the position of the check valve 433.

Please refer to FIG. 4 to FIG. 7 again. When the pressure gas is input from the air inlet 21 to form a pneumatic flow, the air pressure flows through the guiding duct 41 to the air hammer duct 42 as shown in FIG. 4; At this time, the pressure of the air pressure pushes the hammer piston 421 to hit the drill bit 422. Since the drill bit 422 is sleeved with the spring 424, the air hammer piston 421 is pressed under the pressure of the air pressure, so that the drill bit 422 forms a reciprocating up and down impact. The function of the action, and the external force rotating the rotating head 30 to drill the working well; it is worth noting that since the air hammer piston 421 is hollow, the air pressure can flow from the hollow portion through the exhaust through hole 423, and then Flowing through the perforations 425 into the return air space 430 is as shown in "FIG. 5" and "FIG. 6"; however, the air pressure in the return air space 430 can be reused via the exhaust inlet 431 and the auxiliary exhaust inlet 434, respectively. The valve 433 is pushed away from the valve port of the auxiliary check valve 436, and flows to the exhaust duct 432 and the auxiliary exhaust duct 435, and then enters the first and second row exhaust ducts 45, 33 to enter the row of stones. Below 441 The crushed stone and the muddy water are driven upwards, so that the gravel and the muddy water can be carried by the air pressure to the exhaust gas exhaust outlet 23 and sprayed outward as shown in Fig. 7 to achieve the effect of pressure reuse.

Although the technical content of the present invention has been disclosed in the foregoing embodiments, it is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent of the scope of the patent application of the present invention. Variations and modifications are still within the scope of the invention.

421‧‧‧Air hammer piston

422‧‧‧ drill bit

423‧‧‧Exhaust through hole

424‧‧ ‧ spring

425‧‧‧Perforation

43‧‧‧ integrated cover

430‧‧‧return space

46‧‧‧through pipeline

Claims (5)

An air pressure reusable pneumatic hammer drill, the pneumatic hammer drill (10) comprising: a rotating head (30) rotated by an external force and having an intake duct (32), the rotating head (30) is worn a second row of exhaust gas ducts (33); a cover (20) disposed outside the rotating head (30) and having an air inlet (21) communicating with the air inlet duct (32), The outer cover (20) has a temporary space (22) communicating with the second row of exhaust ducts (33), and the outer cover (20) is provided with a temporary space (22) a row exhaust outlet (23); and a surface action unit (40) that can be driven by the rotary head (30) and has a guiding duct (41) communicating with the intake duct (32), and The projecting surface unit (40) includes: a hammer pipe (42) communicating with the guiding pipe (41), wherein the air hammer pipe (42) is provided with a hollow air hammer piston (421) and a drill bit (422) partially extending outside the hammer pipe (42) and being struck by the hammer piston (421); a return air space (430) communicating with the air hammer pipe (42) and being fixed The integrated cover (43) of the air hammer pipe (42); The integrated cover (43) is arranged along the air hammer pipe (42) with a stone pipe (44), and the stone pipe (44) is connected to a row of stone inlets (441) communicating with the outside, and the upper portion is connected. a first row of exhaust gas conduits (45) in communication with the row of stone conduits (44), and the first row of stone exhaust conduits (45) is in communication with the second row of exhaust conduits (33) An exhaust inlet (431) disposed on the integrated cover (43) and communicating with the return air space (430); and a communication between the exhaust inlet (431) and the first exhaust gas exhaust pipe (45) an exhaust duct (432), and the exhaust inlet (431) has a check valve (433) in the exhaust duct (432). The air pressure reusable pneumatic hammer drill as described in claim 1 of the patent application scope, The extending into the surface action unit (40) further includes a through pipe (46) extending through the integrated cover (43) and juxtaposed with the air hammer pipe (42). The air pressure reusable pneumatic hammer drill according to claim 1 or 2, wherein the extended surface action unit (40) further includes a through hole (43) and the return air space. (430) an auxiliary exhaust gas inlet (434) connected to each other; and an auxiliary exhaust pipe (435) communicating with the auxiliary exhaust gas inlet (434) and the first exhaust gas exhaust pipe (45), and the auxiliary exhaust pipe The intersection of the gas conduit (435) in communication with the first row of exhaust conduits (45) is higher than the intersection of the exhaust conduit (432) and the first row of exhaust conduits (45), and the assistance The exhaust inlet (434) to the auxiliary exhaust conduit (435) has an auxiliary check valve (436) at a position where the horizontal height of the position is higher than the horizontal line of the position of the check valve (433). The air pressure reusable pneumatic hammer drill according to claim 1 or 2, wherein the drill bit (422) is provided with a spring (424) that buffers the impact of the air hammer piston (421), and the drill bit ( 422) a ventilation through hole (423) that communicates with the air hammer pipe (42) through a gap of the spring (424), and the air hammer pipe (42) is disposed opposite to the spring (424). A perforation (425) is provided in communication with the return air space (430). The air pressure reusable pneumatic hammer drill according to claim 3, wherein the drill bit (422) is provided with a spring (424) that buffers the impact of the air hammer piston (421), and the drill bit (422) An exhaust through hole (423) communicating with the air hammer pipe (42) through a gap of the spring (424) is provided, and the air hammer pipe (42) is also disposed at a position opposite to the spring (424) There is a perforation (425) in communication with the return air space (430).