WO2018014804A1 - 电动减速机导线随动保护结构 - Google Patents

电动减速机导线随动保护结构 Download PDF

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Publication number
WO2018014804A1
WO2018014804A1 PCT/CN2017/093109 CN2017093109W WO2018014804A1 WO 2018014804 A1 WO2018014804 A1 WO 2018014804A1 CN 2017093109 W CN2017093109 W CN 2017093109W WO 2018014804 A1 WO2018014804 A1 WO 2018014804A1
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WO
WIPO (PCT)
Prior art keywords
rotary joint
deformation mechanism
wire
protection structure
reducer
Prior art date
Application number
PCT/CN2017/093109
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English (en)
French (fr)
Inventor
冯永仁
刘铁民
田志宾
刘力平
褚晓冬
魏赞庆
吴兴方
郝桂青
Original Assignee
中国海洋石油总公司
中海油田服务股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中国海洋石油总公司, 中海油田服务股份有限公司 filed Critical 中国海洋石油总公司
Priority to US15/561,101 priority Critical patent/US10236667B2/en
Priority to RU2017129341A priority patent/RU2661892C1/ru
Publication of WO2018014804A1 publication Critical patent/WO2018014804A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
    • E21B17/026—Arrangements for fixing cables or wirelines to the outside of downhole devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1085—Wear protectors; Blast joints; Hard facing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
    • E21B49/06—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools pressing or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0437—Channels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts

Definitions

  • the present application relates to, but is not limited to, an electric reducer wire follower protection structure in a core picking device in the field of petroleum mining technology, particularly in the field of petroleum mining technology.
  • the drilling type core wall coring device is an oil exploration equipment.
  • the driving mechanism of the drill bit is a high-pressure driving hydraulic motor generated by a hydraulic system, and the hydraulic motor drives the diamond drill bit to be screwed into the ground layer, and after drilling to the target length, the core is obtained by the folding operation.
  • the drill bit of the above coring device is mounted on a hydraulic motor, and the power transmission route for driving the drill bit is: motor -> hydraulic pump -> hydraulic motor -> drill bit.
  • the power transmission efficiency of the hydraulic pump and the hydraulic motor is very low, especially when the temperature changes greatly, the viscosity of the hydraulic oil changes greatly and the efficiency is lower, so the effective power transmitted from the motor to the drill bit is small, about 20%.
  • the motor power In order to ensure that the drill has sufficient power to complete the core-taking operation, the motor power must be large, and the requirement of high power of the motor makes the underground power supply difficult and the risk is high.
  • the viscosity of the hydraulic oil is greatly affected by the temperature, and the power transmission efficiency of the hydraulic system is closely related to the viscosity, the working temperature range of the same hydraulic oil is relatively narrow, and it is necessary to frequently change different according to different downhole operating temperatures. Hydraulic oil to complete the core work.
  • a drill driving mode in which the electric motor and the reducer are integrated to directly drive the drill bit has appeared, and the drilling driving mode can greatly improve the effective power transmitted from the motor to the drill bit.
  • the electric reducer integrated with the electric motor and the reducer is directly connected with the drill bit, so the electric deceleration machine moves with the drilling, turning and swinging of the drill bit, and the wire of the electric reducer is exposed and moves with it, and the movement of the wire Winding, bending, wear and leakage can occur and affect the life of the wire.
  • the present application provides a follow-up protection structure for the electric reducer wire, which prevents the wire from being easily bent and wounded during the movement of the electric reducer, and provides a balanced lubrication passage of the electric reducer.
  • a wire reducer protection structure for an electric reducer includes a variable length deformation mechanism and a slide plate, the slide plates are symmetrically disposed on two sides of the deformation mechanism, and the deformation mechanism is supported on the slide plate, and the slide plate restricting portion
  • the deformation mechanism deforms the deformation mechanism between the slide plates, and the deformation mechanism is pre-configured with a continuous through hole.
  • the deformation mechanism is disposed in rotational connection with the electric reducer and is slidably coupled to a main base of the coring device, the passage being configured to serve as a passage for the wire.
  • the deformation mechanism comprises a long rotary joint, a middle rotary joint and a short rotary joint which are sequentially connected in rotation, and the middle rotary joint and the short rotary joint are simultaneously slidably connected with the sliding plate.
  • a first slide and a second slide are disposed in the slide plate, and the middle rotary joint slides along the first slide, and the short rotary joint is along the second slide slide.
  • the deformation mechanism is disposed to be slidably coupled to the main base of the coring device by a sliding connecting tube, and the end of the sliding connecting tube is disposed to have a limiting ring that restricts the sliding connecting tube from coming out.
  • the long rotary joint and the middle rotary joint are connected by a long straight connecting pipe, and the long straight connecting pipe is connected to the middle rotary joint.
  • the long straight connecting pipe and the middle rotating joint are connected by a male connector and a female connector.
  • the channels may also be arranged to serve as channels for hydraulic oil.
  • the deformation mechanism is made of a high temperature resistant anticorrosive metal.
  • a deformation mechanism formed by a long rotary joint, a middle rotary joint, and a short rotary joint converts a flexible wire into a substantially rigid (protected by a rigid deformation mechanism), preventing the guide
  • the wire bends and wraps as the electric reducer moves, and the wire is located in the deformation mechanism to prevent the wire from being scratched and the service life of the wire is prolonged.
  • the deformation mechanism is supported on the symmetrically disposed sliding plate, and the sliding plate restricting deformation mechanism deforms the deformation mechanism between the sliding plates to prevent lateral deformation of the deformation mechanism and the wires located therein.
  • the through hole in the deformation mechanism can fix the wire of the electric reducer or the hydraulic oil of the main base body into the casing of the electric reducer, and balance the internal and external pressure of the coring device while lubricating the electric reducer. Thereby ensuring the normal operation of the coring device in a high temperature and high pressure environment.
  • the long straight connecting pipe connected with the long rotary joint is plugged and connected with the middle rotary joint, and the plug connection is convenient for assembling and disassembling and repairing the coring device.
  • 1 is a top plan view of a follower protection structure
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1 when the electric reducer is in the initial position;
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1 when the electric reducer is turned over to an angle with the axis of the coring device;
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 1 when the electric reducer is turned up to a position perpendicular to the axis of the coring device;
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 1 when the electric reducer drives the drill bit to drill;
  • Fig. 6 is a perspective view showing the electric reducer driving the drill bit to drill.
  • FIG. 1 is a schematic plan view of the follow-up protection structure
  • FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 when the electric reducer is in the initial position
  • FIG. 3 is a view of the electric reducer flipped to and from the core
  • FIG. 4 is a cross-sectional view taken along line AA of FIG. 1 when the axis of the device is at an angle
  • FIG. 4 is a cross-sectional view taken along line AA of FIG. 1 when the electric reducer is turned up to a position perpendicular to the axis of the coring device
  • FIG. 5 is a view of the electric reducer driving the bit while drilling 1 is a schematic cross-sectional view of AA
  • FIG. 6 is a schematic perspective view of the electric reducer driving the drill bit to drill.
  • the following protective structure shown in FIGS. 1 to 6 includes a long rotary joint 3, a long straight joint pipe 4, a middle rotary joint 15, a short joint 16, a short rotary joint 17, and a sliding joint pipe 18, one end of which is a long rotary joint 3. It is rotatably connected with the outlet 2 of the electric reducer 1, and the other end is fixed to one end of the long straight connecting pipe 4 through the lock ring 6 and the lock nut 5, and the long rotary joint 3 and the long straight connecting pipe 4 are sealed by the sealing ring 7. .
  • the other end of the long straight connecting pipe 4 is rotatably connected to the middle rotary joint 15 through the transfer female head 14, and the transfer female head 14 is fixed to the long straight connecting pipe 4 by a lock nut, and the middle rotary joint 15 passes through the short joint 16 Short rotary joint 17 connected, medium rotation
  • the joint 15 is fixedly coupled to the short joint 16 by a lock nut, and the short joint 16 is rotatably coupled to the short rotary joint 17.
  • the short rotary joint 17 is connected to the sliding connecting pipe 18, and the sliding connecting pipe 18 extends into the main base body 20, and is slidably connected to the main base body 20 through the shaft hole of the auxiliary mounting member fixed to the main base body 20, so as to prevent the protective structure from decelerating with the electric motor.
  • the sliding connecting pipe 18 is disengaged from the main base body 20, and the end of the sliding connecting pipe 18 is connected with a retaining ring 19 having a diameter larger than that of the axial hole.
  • the sides of the middle rotary joint 15 and the short rotary joint 17 have shafts which are mounted on the slide plates 11 provided on both sides of the deformation mechanism, wherein the shaft of the middle rotary joint 15 is mounted in the first chute 12, short rotation
  • the shaft of the joint 17 is installed in the second sliding slot 13, and the first sliding slot 12 and the second sliding slot 13 are disposed on the upper and lower layers, wherein the first sliding slot 12 is located in the lower layer and the second sliding slot 13 is located in the upper layer.
  • the first chute 12 and the second chute 13 on the slide restrict the deformation mechanism such that the shaft of the middle rotary joint 15 and the shaft of the short rotary joint 17 can slide in the first chute 12 and the second chute 13, respectively.
  • the rotary joint 17 is rotatable relative to the middle rotary joint 15, so that the short rotary joint 17 and the middle rotary joint 15 are not laterally deformed.
  • the long straight connecting pipe 4 is connected to the transfer female head 14 through a pluggable 3-core male connector 8, a 3-core female connector 9 connected to the end of the long straight connecting pipe 4
  • the 3-core female connector 9 is connected to the adapter female connector 14 and has a plug-in connection for easy inspection and assembly of the coring device.
  • the long rotary joint 3, the long straight joint pipe 4, the middle rotary joint 15, the short joint 16, the short rotary joint 17, and the sliding joint pipe 18 are sequentially connected to form a variable length deformation mechanism
  • the middle of the motor is provided with continuous and mutually penetrating holes, and the motor wire 10 is discharged from the outlet 2 of the electric reducer 1 and then laid in the hole of the deformation mechanism, when the electric reducer 1 drives the drill bit from the initial position (with the coring device)
  • the axis parallel position is turned to the coring position (vertical position with the core of the coring device), and then the core is drilled along the axis perpendicular to the axis of the coring device.
  • the electric reducer 1 drives the drill bit to swing a certain angle to the core, the electric reducer
  • the motor lead 10 is fixed in the deformation mechanism and follows the deformation mechanism.
  • the hole from the electric reducer 1 to the main base 20 can not only ensure electric reduction
  • the motor wire 10 is not wound or bent, and the mutually penetrated holes simultaneously communicate with the electric reducer 1 and the main base 20, which can serve as a passage for the hydraulic oil 21.
  • the hydraulic oil in the main base body 21 is introduced into the electric reducer 1 through the tunnel, and the hydraulic oil 21 can lubricate the motor reducer 1 while the through loop can reduce the internal and external pressure difference of the coring device.
  • the device acts as a protection.
  • the deformation mechanism is made of a high temperature resistant anticorrosive metal, such as titanium alloy, stainless steel, or the like.
  • the flexible wire is converted into a basic rigidity by the protection of the rigid deformation mechanism, which prevents the wire from being bent and entangled during the movement of the electric reducer, and provides a balanced lubrication channel of the electric reducer.
  • This application can be widely applied to coring devices in the field of petroleum mining technology.

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Abstract

一种电动减速机(1)导线随动保护结构，包括长度可变的变形机构和滑板(11)，滑板(11)对称设置在变形机构两侧，变形机构支撑在滑板(11)上，滑板(11)限制变形机构使变形机构在滑板(11)之间变形，变形机构内预设有连续贯通的孔道，变形机构设置成与电动减速机(1)转动连接，且与取芯装置的主基体(20)滑动连接，孔道设置成用作电动机导线(10)的通道。

Description

电动减速机导线随动保护结构 技术领域
本申请涉及但不限于石油采矿技术领域、尤其石油采矿技术领域的取芯装置中电动减速机导线随动保护结构。
背景技术
钻进式井壁取芯装置是一种石油勘探设备。现有的钻进式井壁取芯装置，其钻头的驱动机构为液压系统产生的高压驱动液压马达，液压马达驱动金刚石钻头，使其旋入地层，钻到目标长度后，通过折芯动作取得地层的岩芯。上述取芯装置的钻头安装在液压马达上，驱动钻头的动力传递路线为：电机——>液压泵——>液压马达——>钻头。而液压泵、液压马达的动力传输效率很低，特别是在温度变化很大时，液压油粘度变化很大，效率更低，因此从电机传输到钻头的有效功率很小，大概20％左右。为保证钻头有足够功率完成取芯作业，电机功率必须很大，而对电机大功率的要求造成井下供电难度很大、风险很高。另外，由于液压油的粘度受温度影响较大，而液压系统的功率传递效率与粘度关系紧密，因此同一种液压油的仪器工作温度范围比较窄，必须根据不同的井下作业温度，频繁更换不同的液压油来完成取芯作业。
发明内容
为了提高钻进效率，出现了一种以电动机和减速机集成直接驱动钻头的钻头驱动模式，此钻进驱动模式可以大幅提高电机传输到钻头的有效功率。但是，电动机和减速机集成的电动减速机由于和钻头直接连接，因此电动减速机会随着钻头的钻进、翻转和摆动而运动，电动减速机的导线裸露且也会随之运动，导线的运动可能会发生缠绕、弯折、磨损和泄漏而影响导线的寿命。
基于此，本申请提供一种电动减速机导线的随动保护结构，防止在电动减速机运动过程中其导线易弯折缠绕发生损坏，并提供一条电动减速机平衡润滑通道。
一种电动减速机导线随动保护结构，包括长度可变的变形机构和滑板，所述滑板对称设置在所述变形机构两侧，所述变形机构支撑在所述滑板上，所述滑板限制所述变形机构使所述变形机构在所述滑板之间变形，所述变形机构内预设有连续贯通的孔道，
所述变形机构设置成与所述电动减速机转动连接，且与取芯装置的主基体滑动连接，所述孔道设置成用作导线的通道。
可选地，所述变形机构包括依次转动连接的长旋转接头、中旋转接头和短旋转接头，所述中旋转接头和所述短旋转接头同时与所述滑板滑动连接。
可选地，所述滑板内设置有上下错层的第一滑道和第二滑道，所述中旋转接头沿所述第一滑道滑动，所述短旋转接头沿所述第二滑道滑动。
可选地，所述变形机构设置成通过滑动连接管与所述取芯装置的主基体滑动连接，所述滑动连接管的端部设置成具有限制所述滑动连接管脱出的限位环。
可选地，所述长旋转接头和所述中旋转接头通过长直连接管连接，所述长直连接管与所述中旋转接头插接连接。
可选地，所述长直连接管与所述中旋转接头通过公接头和母接头插接连接。
可选地，所述孔道还可以设置成用作液压油的通道。
可选地，所述变形机构的材质为耐高温防腐金属。
上述方案可具有如下有益效果：
首先，由长旋转接头、中旋转接头、短旋转接头形成的变形机构将柔性的导线转化成基本刚性(通过刚性的变形机构的保护)，防止了导 线随着电动减速机运动的过程中发生弯折和缠绕，同时导线位于变形机构内，避免导线外露被刮伤的情况发生，延长了导线的使用寿命。
其次，变形机构支撑在对称设置的滑板上，滑板限制变形机构使变形机构在滑板间进行变形，可以避免变形机构及位于其内的导线发生侧向变形。
再者，变形机构内贯通的孔道既可以固定电动减速机的导线还可以将主基体的液压油引至电动减速机的箱体内，在润滑电动减速机的同时可以平衡取芯装置的内外压力，从而确保取芯装置在高温高压环境下的正常工作。
另外，与长旋转接头连接的长直连接管与中旋转接头插接连接，插接连接的方式便于取芯装置的装拆和维修。
以上是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
在阅读并理解了附图概述和本发明的实施方式后，可以明白其他方面。
附图概述
当结合附图考虑时，通过参照下面的详细描述，能够更完整更好地理解本申请实施例以及容易得知其中许多伴随的优点，但此处所说明的附图用来提供对本申请实施例的进一步理解，构成本申请实施例的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的限定，如图其中：
图1为随动保护结构的俯视示意图；
图2是电动减速机位于初始位置时图1的A-A剖视示意图；
图3是电动减速机翻转至与取芯装置轴线成一定角度时图1的A-A剖视示意图；
图4是电动减速机翻转至与取芯装置轴线垂直位置时图1的A-A剖视示意图；
图5是电动减速机带动钻头钻进时图1的A-A剖视示意图；
图6是电动减速机带动钻头钻进时的立体示意图。
附图标记：1-电动减速机、2-出线口、3-长旋转接头、4-长直连接管、5-锁紧螺母、6-锁环、7-密封圈、8-3芯公接头、9-3芯母接头、10-电动机导线、11-滑板、12-第一滑槽、13-第二滑槽、14-转接母头、15-中旋转接头、16-短连接头、17-短旋转接头、18-滑动连接管、19-限位环、20-主基体、21-液压油。
本发明的实施方式
下面结合附图对本申请的实施例进行说明，需要说明的是，在不冲突的情况下，本申请中的实施例和实施例中的特征可以相互任意组合。
请参见图1至图6，其中，图1为随动保护结构的俯视示意图；图2是电动减速机位于初始位置时图1的A-A剖视示意图；图3是电动减速机翻转至与取芯装置轴线成一定角度时图1的A-A剖视示意图；图4是电动减速机翻转至与取芯装置轴线垂直位置时图1的A-A剖视示意图；图5是电动减速机带动钻头钻进时图1的A-A剖视示意图；图6是电动减速机带动钻头钻进时的立体示意图。
图1至图6中展示的随动保护结构包括长旋转接头3、长直连接管4、中旋转接头15、短连接头16、短旋转接头17和滑动连接管18，长旋转接头3的一端与电动减速机1的出线口2转动连接，另一端通过锁环6和锁紧螺母5实现与长直连接管4一端固定，长旋转接头3和长直连接管4之间通过密封圈7密封。长直连接管4的另一端通过转接母头14与中旋转接头15转动连接，且转接母头14通过锁紧螺母与长直连接管4固定，中旋转接头15通过短连接头16与短旋转接头17连接，中旋转 接头15通过锁紧螺母与短连接头16固定连接，短连接头16与短旋转接头17转动连接。短旋转接头17与滑动连接管18连接，滑动连接管18伸入主基体20内，并通过与主基体20固定的辅助安装件的轴孔与主基体20滑动连接，为防止保护结构随电动减速机运动过程中，滑动连接管18从主基体20中脱出，滑动连接管18的端部连接有直径大于轴孔的限位环19。
中旋转接头15和短旋转接头17的侧面均有轴，所述轴安装在设置在变形机构两侧的滑板11上，其中，中旋转接头15的轴安装在第一滑槽12内，短旋转接头17的轴安装在第二滑槽13内，第一滑槽12和第二滑槽13上下错层设置，其中，第一滑槽12位于下层，第二滑槽13位于上层。滑板上的第一滑槽12和第二滑槽13限制变形机构，使中旋转接头15的轴和短旋转接头17的轴可分别在第一滑槽12和第二滑槽13内滑动，短旋转接头17可相对于中旋转接头15发生转动，使短旋转接头17和中旋转接头15不发生侧向变形。
参见图3，长直连接管4通过可插拔的3芯公接头8、3芯母接头9与转接母头14连接，其中，3芯公接头8连接在长直连接管4的端部，3芯母接头9与转接母头14连接，插拔式的连接，便于取芯装置的检修和装拆。
参见图2至图5，长旋转接头3、长直连接管4、中旋转接头15、短连接头16、短旋转接头17和滑动连接管18顺序连接后形成长度可变的变形机构，上述构件中均预设有连续且相互贯通的孔道，电动机导线10从电动减速机1的出线口2出来后，敷设于变形机构的孔道内，当电动减速机1带动钻头从初始位置(与取芯装置轴线平行位置)翻转至取芯位置(与取芯装置轴线垂直位置)，然后沿与取芯装置轴线垂直位置钻进取芯，取芯后电动减速机1带动钻头摆动一定角度折芯，电动减速机1这一系列的动作，电动机导线10固定在变形机构内并跟随变形机构运动。自电动减速机1至主基体20相互贯通的孔道，不仅可以确保电动减 速机1在翻转、钻进、摆动等动作过程中，电动机导线10不会缠绕、弯折，相互贯通的孔道同时连通了电动减速机1机箱和主基体20，其可以作为液压油21的通道，将主基体21内的液压油通过孔道引入电动减速机1机箱内，液压油21可以对电机减速机1起到润滑作用，同时贯通的回路可以降低取芯装置的内外压差，对取芯装置起保护作用。
可选地，所述变形机构的材质为耐高温防腐金属，例如：钛合金、不锈钢等。
上述实施例仅为说明本申请所做的列举，本申请的保护范围不受其限制，仍以本申请权利要求书的内容为准。容易理解的是，在其他实施例中，本专业的技术人员可根据本专业的常规技术和常识进行改动均落入本申请的保护范围。
在此完成了对本申请示例性的实施方案的描述。本领域技术人员可认识到此处所述的实施例仅用于说明本申请，其中电动减速机导线随动保护结构的元件或结构等都是可以有所变化的，凡是在本申请技术方案的基础上进行的等同变换和改进，均不应排除在本申请的保护范围之外。
工业实用性
本申请实施例中，通过刚性的变形机构的保护，将柔性的导线转化成基本刚性，防止了导线随着电动减速机运动的过程中发生弯折和缠绕，并提供一条电动减速机平衡润滑通道。本申请可广泛应用于石油采矿技术领域的取芯装置中。

Claims (8)

  1. 一种电动减速机导线随动保护结构，包括长度可变的变形机构和滑板，所述滑板对称设置在所述变形机构两侧，所述变形机构支撑在所述滑板上，所述滑板限制所述变形机构使所述变形机构在所述滑板之间变形，所述变形机构内预设有连续贯通的孔道，
    所述变形机构设置成与所述电动减速机转动连接，且与取芯装置的主基体滑动连接，所述孔道设置成用作导线的通道。
  2. 如权利要求1所述的电动减速机导线随动保护结构，其中：所述变形机构包括依次转动连接的长旋转接头、中旋转接头和短旋转接头，所述中旋转接头和所述短旋转接头同时与所述滑板滑动连接。
  3. 如权利要求2所述的电动减速机导线随动保护结构，其中：所述滑板内设置有上下错层的第一滑道和第二滑道，所述中旋转接头沿所述第一滑道滑动，所述短旋转接头沿所述第二滑道滑动。
  4. 如权利要求1-3中任一项所述的电动减速机导线随动保护结构，其中：所述变形机构设置成通过滑动连接管与所述取芯装置的主基体滑动连接，所述滑动连接管的端部设置成具有限制所述滑动连接管脱出的限位环。
  5. 如权利要求2或3所述的电动减速机导线随动保护结构，其中：所述长旋转接头和所述中旋转接头通过长直连接管连接，所述长直连接管与所述中旋转接头插接连接。
  6. 如权利要求5所述的电动减速机导线随动保护结构，其中：所述长直连接管与所述中旋转接头通过公接头和母接头插接连接。
  7. 如权利要求1-6中任一项所述的电动减速机导线随动保护结构，其中：所述孔道还设置成用作液压油的通道。
  8. 如权利要求1-7中任一项所述的电动减速机导线随动保护结构，其中：所述变形机构的材质为耐高温防腐金属。
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