Special gas box for multifunctional audio frequency environment-friendly drilling machine

Abstract

The invention provides a special gas box for a multifunctional audio-frequency environment-friendly drilling machine, which comprises a gas outlet end assembly and a gas inlet end assembly, the gas outlet end assembly comprises a gas outlet end mandrel and a gas outlet end mandrel jacket, the gas outlet end mandrel is provided with a through upper central gas passage, and the gas outlet end mandrel jacket is provided with a gas outlet communicated with the upper central gas passage; the air inlet end assembly comprises an air inlet end mandrel and an air inlet end mandrel outer sleeve, a double-wall inner pipe is arranged in the center of the air inlet end mandrel, and the double-wall inner pipe is provided with a lower center air channel and an annular air channel. The air inlet end mandrel outer sleeve is provided with an air inlet communicated with the annular air channel. The top of the air inlet end mandrel is connected with the bottom of the air outlet end mandrel; the air outlet end mandrel outer sleeve and the air inlet end mandrel outer sleeve are connected through a connecting piece. After the air box is installed on the multifunctional audio frequency environment-friendly drilling machine, the reverse circulation down-the-hole hammer can be used on the multifunctional audio frequency environment-friendly drilling machine.

Description

TECHNICAL FIELD

[0001] The present application relates to a multifunctional audio environmental protection drilling machine dedicated gas box. BACKGROUND

[0002] The audio vibration environmental protection drilling machine uses the ultra-high frequency vibration drilling method, does not use mud, is green and environmentally friendly, and is mainly used in many fields such as contaminated site investigation and environmental monitoring well, and has achieved good social and economic benefits. However, there are many uncertain factors in geological exploration, environmental exploration and other strata, especially different environments and different purposes have different requirements for the performance of the drilling machine, such as drilling for the purpose of obtaining core and drilling for the purpose of rapid hole forming. In order to actively expand the application scene of the multifunctional environmental protection drilling machine, and achieve the purpose of using one drilling machine to drill different requirements in the construction site, the present application is developed. SUMMARY

[0003] In order to expand the application scene of the multifunctional environmental protection drilling machine, the present application provides a multifunctional audio environmental protection drilling machine dedicated gas box, which can realize the use of reverse circulation down-the-hole hammer on the multifunctional audio environmental protection drilling machine after being installed on the multifunctional audio environmental protection drilling machine.

[0004] To solve the above technical problems, the technical scheme of the present application is as follows: A multifunctional audio environmental protection drilling machine dedicated gas box, comprising an air outlet end assembly located at the upper part and an air inlet end assembly located at the lower part, the air outlet end assembly comprising an air outlet end shaft and an air outlet end shaft sleeve sleeved outside the air outlet end shaft, the air outlet end shaft having a through upper central air passage, the air outlet end shaft sleeve being provided with an air outlet, the air outlet being in communication with the upper central air passage; the air inlet end assembly comprising an air inlet end shaft and an air inlet end shaft sleeve sleeved outside the air inlet end shaft, wherein the center of the air inlet end shaft is provided with a double-wall inner tube, the double-wall inner tube having a lower central air passage passing through the center and an annular air passage provided outside the lower central air passage, the annular air passage being closed at the top end and having an opening at the bottom of the air outlet end shaft, the lower central air passage being in communication with the upper central air passage; the air inlet end shaft sleeve being provided with an air inlet in communication with the annular air passage; the top of the air inlet end shaft being connected to the bottom of the air outlet end shaft through threads; the air outlet end shaft sleeve and the air inlet end shaft sleeve being connected through a connecting piece.

[0005] The connecting piece is a connecting rod, and the air outlet end shaft sleeve and the air inlet end shaft sleeve are both provided with mounting lugs protruding to the same side, and the two ends of the connecting rod are connected with the mounting lugs on the air outlet end shaft sleeve and the air inlet end shaft sleeve respectively.

[0006] The top of the upper central air passage is provided with a plugging.

[0007] There is a first gap between the outer sleeve of the air outlet mandrel and the air outlet mandrel. The bottom of the first gap is closed by an end cap. Multiple sets of V-shaped sealing rings are arranged on both sides of the air outlet in the first gap.

[0008] There is a second gap between the air intake mandrel sleeve and the air intake mandrel. The bottom of the second gap is closed by an end cap. Multiple sets of V-shaped sealing rings are provided on both sides of the air intake in the second gap.

[0009] Deep groove ball bearings are provided at the upper and lower ends of the first and second gaps.

[0010] The V-shaped seals inside the first and second gaps are filled with lubricating grease between themselves and the deep groove ball bearing.

[0011] The V-shaped sealing ring is fixed by a pressure ring, which has multiple through holes.

[0012] The air outlet assembly is mounted on the spindle of the multi-functional acoustic environmental protection drilling rig.

[0013] The air inlet is connected to the air compressor via a pipeline, and the air outlet is connected to the rock cuttings collection and processing device via a pipeline.

[0014] The technical effects of this invention are as follows: After being equipped with the special air box described in this invention, the multi-functional acoustic environmentally friendly drilling rig, in conjunction with a high-power air compressor, enables the application of a reverse circulation down-the-hole hammer, expanding the applicable scenarios of the multi-functional acoustic environmentally friendly drilling rig. This improves drilling efficiency, expands the applicable scenarios of the drilling rig, and reduces the overall operating cost of the drilling rig. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings. The accompanying drawings are only for illustrative purposes and do not limit the scope of the present invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of the air box described in this invention; Figure 2 This is a schematic cross-sectional view of the air box described in this invention; Figure 3 This is a schematic diagram of the airflow direction of the air box described in this invention.

[0017] in: 10-Outlet assembly; 11-Outlet mandrel; 12-Outlet mandrel sleeve; 13-Upper central air passage; 14-Outlet port; 15-Seal; 16-End cap; 17-V-ring seal; 18-Deep groove ball bearing; 19-Pressure ring; 20-Connecting rod; 30-Intake end assembly; 31-Intake end mandrel; 32-Intake end mandrel sleeve; 33-Double wall inner tube; 34-Lower central air passage; 35-Annular air passage; 36-Intake port. Detailed Implementation

[0018] The following detailed description is based on specific embodiments, but the scope of protection of the present invention is not limited to the specific implementation methods.

[0019] like Figures 1-2 As shown, this embodiment of the invention provides a multifunctional air box for environmentally friendly acoustic drilling rigs, including an air outlet assembly 10 located at the top and an air inlet assembly 30 located at the bottom.

[0020] The air outlet assembly 10 includes an air outlet mandrel 11 and an air outlet mandrel sleeve 12 sleeved on the outside of the air outlet mandrel 11. The air outlet mandrel 11 has a through upper central air passage 13, and the air outlet mandrel sleeve 12 is provided with an air outlet 14, which is connected to the upper central air passage 13. The intake end assembly 30 includes an intake end spindle 31 and an intake end spindle sleeve 32 sleeved outside the intake end spindle 31. The intake end spindle 31 has a double-walled inner tube 33 at its center. The double-walled inner tube 33 has a lower central air passage 34 that passes through the center and an annular air passage 35 located outside the lower central air passage. The top of the annular air passage 35 is closed and has an opening at the bottom of the exhaust end spindle 31. The lower central air passage 34 is connected to the upper central air passage 13. The intake end spindle sleeve 32 is provided with an air inlet 36 that communicates with the annular air passage 35. The top of the intake mandrel 31 is connected to the bottom of the outlet mandrel 11 by a thread; this makes the intake assembly and the outlet assembly a synchronous whole.

[0021] The exhaust mandrel sleeve 11 and the intake mandrel sleeve 31 are connected by a connector.

[0022] Specifically, the connector is a connecting rod 20. Both the outlet mandrel sleeve 12 and the inlet mandrel sleeve 32 are provided with mounting lugs protruding outwards to the same side. The two ends of the connecting rod 20 are connected to the mounting lugs on the outlet mandrel sleeve 12 and the inlet mandrel sleeve 32, respectively. The connecting rod 20 integrates the outlet and inlet assemblies into a single unit. The connecting rod 20 provides tension and torque, enabling the outlet and inlet assemblies to move synchronously while remaining relatively stationary.

[0023] A plug 15 is provided at the top of the upper central airway 13.

[0024] There is a first gap between the air outlet mandrel sleeve 12 and the air outlet mandrel 11. The bottom of the first gap is closed by the end cap 16. Multiple sets of V-shaped sealing rings 17 are provided on both sides of the air outlet in the first gap.

[0025] There is a second gap between the intake end mandrel sleeve 32 and the intake end mandrel 31. The bottom of the second gap is closed by the end cap. Multiple sets of V-shaped sealing rings 17 are provided on both sides of the intake port in the second gap.

[0026] Deep groove ball bearings 18 are provided at the upper and lower ends of the first and second gaps. By pressing the deep groove ball bearings 18, the axial movement of the outlet mandrel sleeve 12 or the inlet mandrel sleeve 32 on the mandrel can be restricted.

[0027] The V-shaped sealing ring is fixed by a pressure ring 19, which has multiple through holes to ensure the smooth passage of air and rock cuttings. When high-pressure gas and rock cuttings pass through, the pressure can press the V-shaped lip of the V-shaped sealing ring, enhancing the sealing effect of the system. The gap between the V-shaped sealing ring 17 and the deep groove ball bearing 18 is filled with lubricating grease, which can simultaneously perform the functions of sealing and lubrication.

[0028] The exhaust end assembly is mounted on the spindle of the multi-functional acoustic environmental protection drilling rig, while the bottom of the intake end assembly is fitted with a double-arm drill rod and a down-the-hole hammer.

[0029] The air inlet is connected to the air compressor via a pipeline, and the air outlet is connected to the rock cuttings collection and processing device via a pipeline.

[0030] At work, such as Figure 3 As shown, the high-pressure gas output by the air compressor enters the annular air passage through the air inlet and enters the reverse circulation downhole hammer through the bottom opening, driving the downhole hammer to work.

[0031] High-pressure gas carries rock cuttings generated during drilling, which are discharged through the downhole hammer, the lower central air channel 34, the upper central air channel 13, and then returned to the ground through the outlet.

[0032] The new multi-functional acoustic environmental protection drilling rig using this air box not only retains the advantages of acoustic environmental protection drilling rigs such as mud-free drilling, undisturbed geological sampling, and green environmental protection, but also adds a new application scenario of rapid hole formation using down-the-hole hammer, improving the drilling efficiency of acoustic vibration drilling rigs and expanding the application scenarios and market application prospects of acoustic vibration drilling rigs.

[0033] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims, all of which will fall within the protection scope of the present invention.

Claims

1. A multi-functional, environmentally friendly, acoustic air box for drilling rigs, comprising an upper air outlet assembly and a lower air inlet assembly, characterized in that: The air outlet assembly includes an air outlet mandrel and an air outlet mandrel sleeve sleeved on the outside of the air outlet mandrel. The air outlet mandrel has a through upper central air passage, and the air outlet sleeve is provided with an air outlet, which is connected to the upper central air passage. The air intake assembly includes an air intake mandrel and an air intake mandrel sleeve fitted outside the air intake mandrel. The air intake mandrel has a double-walled inner tube at its center. The double-walled inner tube has a lower central air passage that runs through the center and an annular air passage located outside the lower central air passage. The top of the annular air passage is closed and has an opening at the bottom of the air outlet mandrel. The lower central air passage is connected to the upper central air passage. The air intake mandrel sleeve has an air inlet that communicates with the annular air passage. The top of the inlet mandrel is connected to the bottom of the outlet mandrel by a thread; The outlet mandrel sleeve and the inlet mandrel sleeve are connected by a connector.

2. The air box for a multifunctional audio-frequency environmentally friendly drilling rig as described in claim 1, characterized in that, The connector is a connecting rod. Both the outlet end mandrel sleeve and the inlet end mandrel sleeve are provided with mounting lugs that protrude outward to the same side. The two ends of the connecting rod are respectively connected to the mounting lugs on the outlet end mandrel sleeve and the inlet end mandrel sleeve.

3. The air box for a multifunctional audio-frequency environmentally friendly drilling rig as described in claim 1 or 2, characterized in that, The top of the upper central airway is fitted with a plug.

4. The air box for a multi-functional, environmentally friendly, audio-frequency drilling rig as described in claim 3, characterized in that, There is a first gap between the outer sleeve of the air outlet mandrel and the air outlet mandrel. The bottom of the first gap is closed by an end cap. Multiple sets of V-shaped sealing rings are arranged on both sides of the air outlet in the first gap.

5. The air box for a multi-functional audio-frequency environmentally friendly drilling rig as described in claim 4, characterized in that, There is a second gap between the air intake mandrel sleeve and the air intake mandrel. The bottom of the second gap is closed by an end cap. Multiple sets of V-shaped sealing rings are provided on both sides of the air intake in the second gap.

6. The air box for a multi-functional, environmentally friendly audio drilling rig as described in claim 5, characterized in that, Deep groove ball bearings are provided at the upper and lower ends of the first and second gaps.

7. The air box for a multifunctional audio-frequency environmentally friendly drilling rig as described in claim 6, characterized in that, The V-shaped seals inside the first and second gaps are filled with lubricating grease between themselves and the deep groove ball bearing.

8. The air box for a multifunctional audio-frequency environmentally friendly drilling rig as described in claim 7, characterized in that, The V-shaped sealing ring is fixed by a pressure ring, which has multiple through holes.

9. The air box for a multifunctional audio-frequency environmentally friendly drilling rig as described in claim 8, characterized in that, The air outlet assembly is mounted on the spindle of the multi-functional acoustic environmental protection drilling rig.

10. The air box for a multifunctional, environmentally friendly, audio-frequency drilling rig as described in claim 9, characterized in that, The air inlet is connected to the air compressor via a pipeline, and the air outlet is connected to the rock cuttings collection and processing device via a pipeline.

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