技术领域Technical Field
本发明涉及一种钻机机构，尤其是一种为声频环保钻机动力头送浆的装置。The invention relates to a drilling machine mechanism, in particular to a device for delivering slurry to a power head of an acoustic environmentally friendly drilling machine.
背景技术Background Art
声频振动环保钻机利用超高频振动钻探方式，不用泥浆，绿色环保，主要用于污染场地调查、环境监测井、农业地质调查、水溶性矿物勘探、尾矿库勘察、高精度工程勘察、物探爆破孔和浅层地源热泵孔等多领域，为生态文明建设提供有力支撑。由于地层的复杂多样，声频环保钻机的取样也会受到地层的限制，尤其遇到砂层等易塌陷地层和岩石层等复杂地层时，钻机的取样效率就会大大降低，取样难度明显增大，严重影响钻探取样的质量和进度。The acoustic vibration environmental protection drilling rig uses ultra-high frequency vibration drilling method, does not use mud, is green and environmentally friendly, and is mainly used in pollution site investigation, environmental monitoring wells, agricultural geological surveys, water-soluble mineral exploration, tailings pond exploration, high-precision engineering surveys, geophysical blasting holes and shallow ground source heat pump holes, etc., providing strong support for the construction of ecological civilization. Due to the complexity and diversity of the strata, the sampling of the acoustic environmental protection drilling rig will also be restricted by the strata, especially when encountering complex strata such as sand layers and rock layers, the sampling efficiency of the drilling rig will be greatly reduced, and the sampling difficulty will be significantly increased, which will seriously affect the quality and progress of drilling sampling.
发明内容Summary of the invention
为了克服现有技术中的问题，本发明提供了一种声频环保钻机动力头送浆装置，该送浆装置能在钻杆工作时将泥浆和清水持续送到钻杆中，起到稳定孔壁的效果，当遇到卵石及岩石层等可以使用单动双管钻具进行回转钻探，扩大了钻机的地层适用范围。In order to overcome the problems in the prior art, the present invention provides an acoustic environmentally friendly drilling rig power head slurry delivery device, which can continuously deliver mud and clean water to the drill rod when the drill rod is working, thereby stabilizing the hole wall. When encountering pebbles and rock layers, a single-action double-tube drill bit can be used for rotary drilling, thereby expanding the applicable range of the drilling rig's formations.
为解决上述技术问题，本发明的技术方案如下：In order to solve the above technical problems, the technical solution of the present invention is as follows:
一种声频环保钻机动力头送浆装置，包括外轴套、旋转轴、固定机构和进浆机构，其特征在于，所述旋转轴上端与声频环保钻机动力头的主轴相连，所述旋转轴的下端与钻杆相连，所述外轴套套在旋转轴外侧并通过固定机构与声频环保钻机动力头的固定部分连接，所述外轴套上设置有用于向钻杆内部打入泥浆的进浆机构。A slurry delivery device for an acoustic environmentally friendly drilling rig power head comprises an outer sleeve, a rotating shaft, a fixing mechanism and a slurry feeding mechanism, wherein the upper end of the rotating shaft is connected to the main shaft of the acoustic environmentally friendly drilling rig power head, the lower end of the rotating shaft is connected to the drill rod, the outer sleeve is sleeved on the outside of the rotating shaft and is connected to the fixed part of the acoustic environmentally friendly drilling rig power head through a fixing mechanism, and the outer sleeve is provided with a slurry feeding mechanism for injecting mud into the drill rod.
所述进浆机构包括开设在外轴套外壁的进浆接头和设置在旋转轴内的导流通道，所述导流通道一端与所述进浆接头相通，另外一端与所述钻杆的内部相通。The slurry feeding mechanism comprises a slurry feeding joint provided on the outer wall of the outer sleeve and a flow guiding channel arranged in the rotating shaft. One end of the flow guiding channel is communicated with the slurry feeding joint, and the other end is communicated with the interior of the drill rod.
所述导流通道包括设置在旋转轴内部的竖直通道及水平通道，所述竖直通道与所述水平通道相通，所述竖直通道在所述旋转轴的下端具有竖向开口，所述水平通道在旋转轴的外圆周壁上具有两个水平开口，所述水平开口与所述进浆接头的位置相对应。The guide channel includes a vertical channel and a horizontal channel arranged inside the rotating shaft. The vertical channel is connected to the horizontal channel. The vertical channel has a vertical opening at the lower end of the rotating shaft. The horizontal channel has two horizontal openings on the outer circumferential wall of the rotating shaft. The horizontal openings correspond to the position of the slurry inlet joint.
所述外轴套的内壁上与水平开口对应的位置设置有环形槽，所述进浆接头与所述环形槽相通。An annular groove is arranged on the inner wall of the outer sleeve at a position corresponding to the horizontal opening, and the slurry inlet joint is communicated with the annular groove.
所述外轴套内壁上位于环形槽的上下两侧各设置多道密封圈，多道密封圈之间打满油脂。A plurality of sealing rings are arranged on the inner wall of the outer shaft sleeve at the upper and lower sides of the annular groove, and grease is filled between the plurality of sealing rings.
所述密封圈为两道。The sealing rings are two.
所述旋转轴的一端具有锥管内螺纹，另一端具有锥管外螺纹。One end of the rotating shaft is provided with a tapered tube internal thread, and the other end is provided with a tapered tube external thread.
所述所述固定机构包括固定连接臂，固定连接臂的下端固定在外轴套的外壁上，固定连接臂的上端与声频环保钻机动力头的固定部分相连。The fixing mechanism comprises a fixing connecting arm, the lower end of which is fixed on the outer wall of the outer sleeve, and the upper end of which is connected to the fixing part of the power head of the sonic environmental protection drilling rig.
所述固定连接臂通过螺栓与套固定块连接，套固定块与外轴套的外壁通过焊接连接在一起。The fixed connecting arm is connected to the sleeve fixing block through bolts, and the sleeve fixing block is connected to the outer wall of the outer shaft sleeve through welding.
所述固定连接臂的上端具有开槽，开槽中固定有固定夹块，动力头的固定部分与固定夹块对应的位置设置有连接臂固定块，连接臂固定块与固定夹块上均设置有螺栓孔，螺栓穿过连接臂固定块与固定夹块上的螺栓孔后将连接臂固定块与固定夹块固定。The upper end of the fixed connecting arm is provided with a slot, in which a fixed clamp is fixed, and a connecting arm fixing block is arranged at a position corresponding to the fixed part of the power head and the fixed clamp. Bolt holes are arranged on the connecting arm fixing block and the fixed clamp, and the bolts pass through the bolt holes on the connecting arm fixing block and the fixed clamp to fix the connecting arm fixing block and the fixed clamp.
本发明具有的技术效果：声频环保钻机采用泥浆泵通过所述送浆装置将泥浆和清水打入钻杆内部，进而进入钻孔，起到稳定孔壁的效果，能够继续进行地层取样；当遇到卵石及岩石层等可以使用单动双管钻具进行回转钻探，扩大了钻机的地层适用范围。The technical effects of the present invention are as follows: the sonic environmentally friendly drilling rig uses a mud pump to pump mud and clean water into the drill rod through the slurry delivery device, and then into the borehole, which stabilizes the hole wall and enables continued stratum sampling; when encountering pebbles and rock layers, a single-action double-tube drill bit can be used for rotary drilling, expanding the stratum application range of the drilling rig.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
下面结合附图对本发明做进一步说明The present invention will be further described below in conjunction with the accompanying drawings
图1为本发明实施例1所述送浆装置的正面剖视结构示意图；FIG1 is a front cross-sectional structural schematic diagram of a slurry feeding device according to Embodiment 1 of the present invention;
图2为本发明实施例1所述送浆装置的侧面结构示意图。FIG. 2 is a schematic diagram of the side structure of the slurry delivery device described in Example 1 of the present invention.
具体实施方式DETAILED DESCRIPTION
实施例1Example 1
如图1所示，一种声频环保钻机动力头送浆装置，包括外轴套10、旋转轴20、固定机构和进浆机构，旋转轴20上端与声频环保钻机动力头的主轴100相连，旋转轴20的下端与钻杆(图中未示出)相连，在声频环保钻机工作过程中，声频环保钻机动力头的主轴100旋转带动旋转轴20转动，旋转轴20进而带动钻杆转动。As shown in Figure 1, a slurry delivery device for an acoustic environmentally friendly drilling rig power head includes an outer sleeve 10, a rotating shaft 20, a fixing mechanism and a slurry feeding mechanism. The upper end of the rotating shaft 20 is connected to the main shaft 100 of the acoustic environmentally friendly drilling rig power head, and the lower end of the rotating shaft 20 is connected to a drill rod (not shown in the figure). During the operation of the acoustic environmentally friendly drilling rig, the main shaft 100 of the acoustic environmentally friendly drilling rig power head rotates to drive the rotating shaft 20 to rotate, and the rotating shaft 20 then drives the drill rod to rotate.
为了实现旋转轴20与声频环保钻机动力头的主轴100及钻杆的连接，作为优选，旋转轴20的一端为锥管内螺纹，旋转轴20的另一端为锥管外螺纹，通过锥管内螺纹和锥管外螺纹实现旋转轴20与声频环保钻机动力头的主轴100及钻杆的连接，安装和拆卸方便，结构简单。In order to realize the connection between the rotating shaft 20 and the main shaft 100 of the acoustic environmental protection drilling rig power head and the drill rod, it is preferred that one end of the rotating shaft 20 is an internal thread of a tapered tube, and the other end of the rotating shaft 20 is an external thread of a tapered tube. The connection between the rotating shaft 20 and the main shaft 100 of the acoustic environmental protection drilling rig power head and the drill rod is realized through the internal thread of the tapered tube and the external thread of the tapered tube. The installation and disassembly are convenient and the structure is simple.
外轴套10套在旋转轴20外侧并通过固定机构与声频环保钻机动力头的固定部分连接，这样在工作时外轴套10能保持不动而旋转轴20在外轴套10内旋转。外轴套10上设置有进浆机构，进浆机构用于将泥浆打入到钻杆内，进入钻杆内的泥浆和水进而进入到钻孔中，起到稳定孔壁的效果，能够继续进行地层取样。The outer sleeve 10 is sleeved on the outside of the rotating shaft 20 and connected to the fixed part of the acoustic environmental protection drilling rig power head through a fixing mechanism, so that the outer sleeve 10 can remain stationary while the rotating shaft 20 rotates in the outer sleeve 10 during operation. The outer sleeve 10 is provided with a slurry feeding mechanism, which is used to drive mud into the drill pipe. The mud and water entering the drill pipe then enter the borehole, which has the effect of stabilizing the hole wall and can continue to perform formation sampling.
具体的，进浆机构包括开设在外轴套10外壁的进浆接头12和设置在旋转轴20内的导流通道，导流通道一端开口与进浆接头12相通，另外一端的开口与钻杆的内部相通。该声频环保钻机在工作时，泥浆泵将泥浆和水通过进浆接头12泵入到导流通道中，进入到导流通道中的泥浆和水通过导流通道另外一端的开口进入到钻杆中。Specifically, the slurry feeding mechanism includes a slurry feeding joint 12 provided on the outer wall of the outer sleeve 10 and a guide channel provided in the rotating shaft 20. The opening at one end of the guide channel is communicated with the slurry feeding joint 12, and the opening at the other end is communicated with the interior of the drill pipe. When the acoustic environmental protection drilling rig is working, the mud pump pumps mud and water into the guide channel through the slurry feeding joint 12, and the mud and water entering the guide channel enter the drill pipe through the opening at the other end of the guide channel.
其中，导流通道包括设置在旋转轴20内部的竖直通道21及水平通道22，竖直通道21和水平通道22保持相通，竖直通道21在所述旋转轴的下端具有竖向开口，旋转轴20通过竖向开口与钻杆相通。水平通道22具有两段，每段水平通道22的一端与竖直通道21相通，另外一端在旋转轴的外圆周壁上具有水平开口，该水平开口与进浆接头12的位置相对应，这样从进浆接头12进入的泥浆和水通过水平开口进入到水平通道22中，进而进入到竖直通道21中。The diversion channel includes a vertical channel 21 and a horizontal channel 22 arranged inside the rotating shaft 20. The vertical channel 21 and the horizontal channel 22 are connected to each other. The vertical channel 21 has a vertical opening at the lower end of the rotating shaft, and the rotating shaft 20 is connected to the drill pipe through the vertical opening. The horizontal channel 22 has two sections, one end of each horizontal channel 22 is connected to the vertical channel 21, and the other end has a horizontal opening on the outer circumferential wall of the rotating shaft. The horizontal opening corresponds to the position of the slurry inlet joint 12, so that the mud and water entering from the slurry inlet joint 12 enter the horizontal channel 22 through the horizontal opening, and then enter the vertical channel 21.
由于在声频环保钻机在工作过程中旋转轴20保持不停的旋转，因此需要在外轴套10的内壁上与水平开口对应的位置设置有环形槽11，保持进浆接头12与环形槽11相通，这样即便旋转轴20不停的旋转，从进浆接头12进入到泥浆和水可以保存在环形槽11中，从而能够持续的进入到水平开口中。Since the rotating shaft 20 keeps rotating during the operation of the acoustic environmental protection drilling rig, an annular groove 11 needs to be provided on the inner wall of the outer sleeve 10 at a position corresponding to the horizontal opening to keep the slurry inlet joint 12 connected to the annular groove 11. In this way, even if the rotating shaft 20 keeps rotating, the mud and water entering from the slurry inlet joint 12 can be stored in the annular groove 11, thereby being able to continuously enter the horizontal opening.
外轴套10内壁上位于环形槽11的上下两侧各设置多道密封圈13，密封圈13之间打满油脂，这样能够保证旋转轴20在相对于外轴套10旋转时，不泄露水和泥浆。在本实施例中，密封圈13设置两道，即环形槽11的上下两侧各设置两道密封圈13。Multiple sealing rings 13 are arranged on the inner wall of the outer sleeve 10 at the upper and lower sides of the annular groove 11, and grease is filled between the sealing rings 13, so that water and mud are not leaked when the rotating shaft 20 rotates relative to the outer sleeve 10. In this embodiment, two sealing rings 13 are arranged, that is, two sealing rings 13 are arranged on the upper and lower sides of the annular groove 11.
所述固定机构包括固定连接臂33，固定连接臂33的下端固定在外轴套10的外壁上，固定连接臂33的上端与声频环保钻机动力头的固定部分相连，这样将固定连接臂33固定在声频环保钻机动力头的固定部分上，从而能够保证在旋转轴20转动时，外轴套10相对于动力头保持静止。The fixing mechanism includes a fixed connecting arm 33, the lower end of the fixed connecting arm 33 is fixed to the outer wall of the outer sleeve 10, and the upper end of the fixed connecting arm 33 is connected to the fixed part of the power head of the audio environmental protection drilling rig, so that the fixed connecting arm 33 is fixed to the fixed part of the power head of the audio environmental protection drilling rig, thereby ensuring that when the rotating shaft 20 rotates, the outer sleeve 10 remains stationary relative to the power head.
固定连接臂33的下端与外轴套10的外壁的连接方式为：固定连接臂33通过螺栓32与套固定块31连接，套固定块31与外轴套10的外壁通过焊接连接在一起；固定连接臂33的上端与声频环保钻机动力头的固定部分相连的方式为：固定连接臂33的上端具有开槽，开槽中固定有固定夹块36，动力头的固定部分与固定夹块36对应的位置设置有连接臂固定块35，连接臂固定块35与固定夹块36上均设置有螺栓孔，螺栓37穿过连接臂固定块35与固定夹块36上的螺栓孔后将连接臂固定块35与固定夹块36固定，从而实现固定连接臂33的上端与声频环保钻机动力头的固定部分的固定相连。The lower end of the fixed connecting arm 33 is connected to the outer wall of the outer sleeve 10 in the following manner: the fixed connecting arm 33 is connected to the sleeve fixing block 31 by a bolt 32, and the sleeve fixing block 31 is connected to the outer wall of the outer sleeve 10 by welding; the upper end of the fixed connecting arm 33 is connected to the fixed part of the power head of the audio environmental protection drilling rig in the following manner: the upper end of the fixed connecting arm 33 has a slot, in which a fixing clamp 36 is fixed, and a connecting arm fixing block 35 is provided at a position corresponding to the fixed part of the power head and the fixing clamp 36, and bolt holes are provided on the connecting arm fixing block 35 and the fixing clamp 36, and the bolt 37 passes through the bolt holes on the connecting arm fixing block 35 and the fixing clamp 36 to fix the connecting arm fixing block 35 and the fixing clamp 36, thereby realizing the fixed connection between the upper end of the fixed connecting arm 33 and the fixed part of the power head of the audio environmental protection drilling rig.
一种声频环保钻机动力头送浆装置在工作时，外轴套10通过固定连接臂33固定在声频环保钻机动力头的固定部分上，旋转轴20在动力头的主轴100的带动下旋转运动，泥浆泵通过进浆接头12连接到外轴套10上，泥浆泵将泥浆和水通过进浆接头12泵入到旋转轴20内的导流通道中，并通过导流通道导入到旋转轴20下端连接的钻杆内。在泥浆和清水的作用下，声频环保钻机能够使用回转钻探或振动+回转的钻探方法，能够解决砂层等塌陷地层的取样难题。When the slurry delivery device of the power head of an acoustic environmental protection drilling rig is working, the outer sleeve 10 is fixed to the fixed part of the power head of the acoustic environmental protection drilling rig through the fixed connecting arm 33, the rotating shaft 20 rotates under the drive of the main shaft 100 of the power head, and the mud pump is connected to the outer sleeve 10 through the slurry inlet joint 12. The mud pump pumps mud and water into the diversion channel in the rotating shaft 20 through the slurry inlet joint 12, and introduces them into the drill pipe connected to the lower end of the rotating shaft 20 through the diversion channel. Under the action of mud and clean water, the acoustic environmental protection drilling rig can use rotary drilling or vibration + rotary drilling methods, which can solve the sampling problem of collapsed strata such as sand layers.
本领域技术人员将会认识到，在不偏离本发明的保护范围的前提下，可以对上述实施方式进行各种修改、变化和组合，并且认为这种修改、变化和组合是在独创性思想的范围之内的。Those skilled in the art will recognize that various modifications, changes and combinations may be made to the above-mentioned embodiments without departing from the scope of protection of the present invention, and believe that such modifications, changes and combinations are within the scope of the original idea.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011486566.1ACN112502649B (en) | 2020-12-16 | 2020-12-16 | Audio environment-friendly drilling machine power head slurry feeding device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011486566.1ACN112502649B (en) | 2020-12-16 | 2020-12-16 | Audio environment-friendly drilling machine power head slurry feeding device |
| Publication Number | Publication Date |
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| CN112502649A CN112502649A (en) | 2021-03-16 |
| CN112502649Btrue CN112502649B (en) | 2024-11-01 |
| Application Number | Title | Priority Date | Filing Date |
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| CN202011486566.1AActiveCN112502649B (en) | 2020-12-16 | 2020-12-16 | Audio environment-friendly drilling machine power head slurry feeding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577519B (en)* | 2022-03-30 | 2025-07-18 | 中国地质科学院勘探技术研究所 | Rapid sampling system and method for marine natural gas hydrate |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203248063U (en)* | 2013-05-17 | 2013-10-23 | 涿州市海德机械设备有限公司 | Audio-frequency vibration power head and tractor drilling machine comprising same |
| CN103437706A (en)* | 2013-08-29 | 2013-12-11 | 徐州徐工基础工程机械有限公司 | Power head structure for horizontal directional drilling machine |
| CN203374200U (en)* | 2013-06-19 | 2014-01-01 | 中国地质科学院勘探技术研究所 | Air distribution device for power-head drilling rig and rotary-table drilling rig |
| CN214365950U (en)* | 2020-12-16 | 2021-10-08 | 中煤地第二勘探局集团有限责任公司 | Audio frequency environmental protection rig unit head send thick liquid device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0823194D0 (en)* | 2008-12-19 | 2009-01-28 | Tunget Bruce A | Controlled Circulation work string for well construction |
| CN202755929U (en)* | 2012-09-08 | 2013-02-27 | 天津卓尔钻机制造有限公司 | Shock rotation reverse circulation drilling machine faucet |
| CN104500031B (en)* | 2014-11-20 | 2017-03-29 | 中国科学院广州能源研究所 | Natural gas hydrate stratum drilling simulation device |
| CN105275395B (en)* | 2015-11-17 | 2017-06-30 | 恒天九五重工有限公司 | Horizontal directional drill power head structure |
| CN106677718A (en)* | 2017-02-23 | 2017-05-17 | 桂林市华力重工机械有限责任公司 | Rotary connector for horizontal directional drilling machine |
| CN210977294U (en)* | 2019-11-08 | 2020-07-10 | 南京贻润环境科技有限公司 | An audio drill power head |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203248063U (en)* | 2013-05-17 | 2013-10-23 | 涿州市海德机械设备有限公司 | Audio-frequency vibration power head and tractor drilling machine comprising same |
| CN203374200U (en)* | 2013-06-19 | 2014-01-01 | 中国地质科学院勘探技术研究所 | Air distribution device for power-head drilling rig and rotary-table drilling rig |
| CN103437706A (en)* | 2013-08-29 | 2013-12-11 | 徐州徐工基础工程机械有限公司 | Power head structure for horizontal directional drilling machine |
| CN214365950U (en)* | 2020-12-16 | 2021-10-08 | 中煤地第二勘探局集团有限责任公司 | Audio frequency environmental protection rig unit head send thick liquid device |
| Publication number | Publication date |
|---|---|
| CN112502649A (en) | 2021-03-16 |
| Publication | Publication Date | Title |
|---|---|---|
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