WO2015161664A1 - 一种活动键固定可靠的钻机组合式驱动套 - Google Patents

一种活动键固定可靠的钻机组合式驱动套 Download PDF

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Publication number
WO2015161664A1
WO2015161664A1 PCT/CN2014/094943 CN2014094943W WO2015161664A1 WO 2015161664 A1 WO2015161664 A1 WO 2015161664A1 CN 2014094943 W CN2014094943 W CN 2014094943W WO 2015161664 A1 WO2015161664 A1 WO 2015161664A1
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Prior art keywords
driving sleeve
fixed
movable
key
stopper
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PCT/CN2014/094943
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English (en)
French (fr)
Inventor
何清华
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山河智能装备股份有限公司
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Priority to EP14890225.7A priority Critical patent/EP3135853B1/en
Publication of WO2015161664A1 publication Critical patent/WO2015161664A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer

Definitions

  • the invention relates to the technical field of drilling rigs, and more particularly to a rig integrated driving sleeve with a movable key fixed and reliable.
  • the working process of the power head drive sleeve of the pile foundation construction is driven by the driving gear of the gear box and the driving gear connected with the driving sleeve body, and then fixed in the groove of the inner hole of the driving sleeve.
  • a plurality of active keys drive the drill pipe inserted into the air to rotate together.
  • the drive sleeve and the drill rod are usually mated with a keyway.
  • the key bars on the drill pipe frequently rub against the key groove of the drive sleeve, and the key strips are easily worn and need to be replaced and repaired.
  • driving sleeves there are two kinds of driving sleeves on the market, one is an integral driving sleeve, and the inner sleeve of the driving sleeve is processed into a key groove which can directly cooperate with the drill rod, and is a single part, and the structure is simple, but after excessive wear, it is required
  • the overall replacement of the drive sleeve is costly; the other is a combined drive sleeve, that is, the drive sleeve body and associated movable keys, stoppers, bolts, etc. are installed.
  • the combined drive sleeve key strip is worn, the movable key can be replaced separately, which is relatively low in cost and prolongs the service life of the expensive drive sleeve body.
  • the conventional combined driving sleeve structure is to fix the movable key on the inner hole of the driving sleeve through a plurality of rows of bolts distributed on the movable key.
  • the structure has the following problems: the screw hole processing is troublesome, the precision requirement is high; the active key The fixing is unreliable and easy to loosen and fall off; the disassembly and assembly is troublesome. When replacing, it is necessary to disassemble and install dozens of bolts in the inner hole of the driving sleeve with small space, which is labor intensive and takes a long time.
  • the technical problem to be solved by the present invention is that the movable key of the rig integrated driving sleeve of the prior art is unreliable, easy to loose and fall off, and disassembling and disassembling. Therefore, it is necessary to provide a rig-type driving sleeve with a movable key fixed and reliable.
  • the present invention provides a reliable drill with a movable key fixed.
  • the combined driving sleeve comprises: a driving sleeve body, a movable key, a fixed stopper, a movable stopper and a bolt; the fixed stopper is fixed at one end of the groove of the driving sleeve body, and the movable stopper is fixed to the driving sleeve by bolts At the other end of the body groove, the movable key is fixed in the groove of the driving sleeve body through the fixed stopper and the movable stopper.
  • the active key is symmetrical up and down.
  • the fixed stop at one end of the groove of the drive sleeve body is replaced with a movable stop.
  • one or more stop steps of a certain mating relationship are processed on the movable key, the fixed stop and the movable stop.
  • the stop step is a bevel or a combination of a bevel and a plane.
  • the movable key combination driving sleeve with reliable movable key of the invention has the advantages of fixed reliability, simple structure, stable operation, convenient maintenance and low production cost compared with the prior art rig combined driving sleeve.
  • Figure 1 is a schematic view showing the structure of a rotary drilling rig driving sleeve commonly used in pile foundation construction
  • FIG. 2 is a schematic view showing the fixed structure of the movable driving sleeve of the present invention
  • FIG. 3 is a schematic structural view of the movable end of the combined drive sleeve of the present invention as a movable stop;
  • FIG. 4 is a schematic view showing the structure of the combination driving sleeve of the present invention with two or more steps;
  • Figure 5 is a structural schematic view showing the stop step of the combined drive sleeve block of the present invention being a combination of a slope or a slope and a plane;
  • the current combined drive sleeve structure is the movable key 2 through the bolt 3 It is installed in the groove of the driving sleeve body 1 and the upper and lower ends are fixed stoppers 6.
  • the structure has the following problems: the processing is difficult, and the fixing of the bolts 3 with strict tolerances on the driving sleeve body 1 and the movable key 2 is required. Hole processing is difficult and costly.
  • the fixed stopper 6 is fixed at one end of the groove of the driving sleeve body 1
  • the movable stopper 7 is fixed to the groove of the driving sleeve body 1 by the bolt 8
  • the movable key 5 is fixed in the recess of the drive sleeve body 1 by the fixed stopper 6 and the movable stopper 7.
  • the movable key 5, the fixed stopper 6, and the movable stopper 7 are all processed with a certain matching relationship. Through the stopping step, both ends of the movable key 5 are fixed by the fixed stopper 6 and the movable stopper 7 simply and reliably. In the groove.
  • the drive gear is coupled to the combined drive sleeve.
  • the drill rod 4 is inserted into the combined drive sleeve, and the torque on the drill rod 4 and the movable key 5 of the combined drive sleeve are used to transmit torque and pressure.
  • the movable key 5 can be manufactured in a symmetrical structure and can be installed in an inverted and interchangeable manner.
  • the power head motor reducer drives the driving gear to rotate, and the driving gear drive driving gear drives the combined driving sleeve to rotate together with the drill rod.
  • the movable key 5 When the movable key 5 is worn to a certain extent, it needs to be replaced, and only the bolt 8 is removed when the replacement is performed, and the replacement process can be performed.
  • the working space for disassembling the bolt is large, and the bolts 8 on the single movable block 7 are usually only 1-3, which is simple and convenient to operate.
  • the combined driving sleeve of the present invention is relatively simple to process, and the movable key 5 and the driving sleeve body 1 do not need to process the bolt holes, and only the stopper and the movable key are processed into a stopping step; the fixing method is simple and reliable; the movable key 5
  • the replacement operation space is large, the number of bolts 8 to be removed is small, and the tightening torque on the bolt is also convenient.
  • the combined drive sleeve movable key mounting form of the present invention further includes the following structure.
  • the combined drive sleeve of the present invention is not limited to one end fixed and one end movable.
  • the two ends of the block can be designed to be the structure of the movable block 7.
  • the stop step of the combined drive sleeve block of the present invention may be two or more multi-step structures.
  • the stop step of the combined drive sleeve of the present invention may be a combination of a bevel or a bevel and a plane.
  • the rig integrated drive sleeve with reliable movable key of the invention comprises: a driving sleeve body, a movable key, a fixed stop, a movable stop, a bolt; the active key fixed and reliable drilling rig combined driving sleeve of the invention, and the prior art
  • the rig combination drive sleeve is more reliable than fixed, simple in structure, stable in operation, convenient in maintenance and low in production cost. Therefore, the economical and social benefits of the rig integrated driving sleeve with reliable movable key of the invention are considerable.

Abstract

公开了一种活动键固定可靠的钻机组合式驱动套，包括驱动套本体（1），活动键（2），固定挡块（6），活动挡块（7），螺栓（8）；固定挡块（6）固定在驱动套本体（1）凹槽的一端，活动挡块（7）通过螺栓固定在驱动套本体（1）凹槽的另一端，活动键（2）通过固定挡块（6）与活动挡块（7）固定在驱动套本体（1）的凹槽内。其优点在于：驱动套活动键固定可靠，不易脱落；驱动套活动键的安装方式简单，制造成本低；更换活动键的操作空间大，劳动强度低；活动键上下对称，可以倒置互换。

Description

一种活动键固定可靠的钻机组合式驱动套 技术领域
本发明涉及钻机技术领域，更具体涉及一种活动键固定可靠的钻机组合式驱动套。
背景技术
桩基础施工的钻机如常用的旋挖钻机的动力头驱动套工作过程是由齿轮箱的主动齿轮带动与驱动套本体连接在一起的驱动齿轮旋转，再通过固定在驱动套内孔凹槽中的多个活动键来驱动插在内空中的钻杆一起回转。驱动套与钻杆通常是采用键槽的结构配合。在施工过程中，钻杆上的键条频繁的与驱动套的键槽摩擦，键条容易磨损，需要更换与修补。目前市场上的驱动套分两种，一种是整体式驱动套，这种驱动套内腔加工成可以直接和钻杆配合的键槽的形式，为单一零件，结构简单，但是过度磨损后，需要整体更换驱动套，成本较高；另外一种为组合式驱动套，即由驱动套本体和相关的活动键，挡块，螺栓等安装而成。此种组合式驱动套键条磨损后可以单独更换活动键，成本相对低廉，延长了昂贵的驱动套本体的使用寿命。
目前传统的组合式驱动套结构为通过分布在活动键上的多排螺栓将活动键固定在驱动套内孔凹槽上，此种结构存在如下问题：螺孔加工麻烦，精度要求高；活动键固定不可靠，容易松动脱落；拆装麻烦，更换时要在空间狭小的驱动套内孔中拆卸、安装数十个螺栓，劳动强度大，耗费时间长。
发明内容
本发明要解决的技术问题就是现有技术中的钻机组合式驱动套活动键固定不可靠，容易松动脱落，拆装麻烦，因此需要提供一种活动键固定可靠的钻机组合式驱动套。
为了解决上述技术问题，本发明提供了一种活动键固定可靠的钻 机组合式驱动套，该驱动套包括：驱动套本体，活动键，固定挡块，活动挡块，螺栓；固定挡块固定在驱动套本体凹槽的一端，活动挡块通过螺栓固定在驱动套本体凹槽的另一端，活动键通过固定挡块与活动挡块固定在驱动套本体的凹槽内。
优选地，所述活动键上下对称。
优选地，将在驱动套本体凹槽一端的固定挡块换为活动挡块。
优选地，所述活动键，固定挡块和活动挡块上都加工有一定配合关系的一个或两个以上止动台阶。
优选地，所述止动台阶为斜面或斜面与平面的组合。
本发明的有益效果：
本发明的活动键固定可靠的钻机组合式驱动套，与现有技术中的钻机组合式驱动套相比固定可靠、结构简单、工作稳定、维修方便、制作成本低。
附图说明
图1是是目前桩基础施工常用的旋挖钻机驱动套结构示意图；
图2是本发明的组合式驱动套活动键固定结构示意图；
图3是本发明的组合式驱动套两端挡块为活动挡块的结构示意图；
图4是本发明的组合式驱动套挡块的止动台阶为两个以上的多台阶结构示意图；
图5是本发明的组合式驱动套挡块的止动台阶为斜面或斜面与平面组合的结构示意图；
图中标记：1、驱动套本体，2、活动键，3、螺栓，4、钻杆，5、活动键，6、固定挡块，7、活动挡块，8、螺栓。
具体实施方式
以下实施例用于说明本发明，但不用来限制本发明的范围。
如图1所示，目前的组合式驱动套结构为活动键2通过螺栓3安 装在驱动套本体1凹槽内，上下两端都是固定挡块6，该结构存在如下问题：加工困难，驱动套本体1和活动键2上数十个位置公差要求严格的螺栓3的固定孔加工难度大、费用高。而且还要解决驱动套本体外侧齿轮箱润滑油通过螺栓孔产生泄漏的问题；活动键固定方式不可靠，容易松动脱落，产生施工停止故障；拆卸更换麻烦，更换时要在空间狭小的驱动套内孔中拆卸、安装数十个螺栓，劳动强度大、耗费时间长。
如图2所示，本发明的组合式驱动套活动键安装方式，固定挡块6固定在驱动套本体1凹槽的一端，活动挡块7通过螺栓8固定在驱动套本体1凹槽的另一端，活动键5由固定挡块6与活动挡块7固定在驱动套本体1的凹槽内。活动键5、固定挡块6、活动挡块7上都加工有一定配合关系的台阶，通过此止动台阶，活动键5的两端被固定挡块6、活动挡块7简单而可靠的固定在凹槽中。驱动齿轮与组合式驱动套连接在一起。钻杆4插入组合式驱动套中，利用钻杆4上的键与组合式驱动套的活动键5传递扭矩与加压力。
活动键5可制造成对称结构，完全可以倒置互换安装。
工作时，动力头马达减速机带动主动齿轮旋转，主动齿轮驱动驱动齿轮带动组合式驱动套与钻杆一起旋转。
当活动键5磨损到一定程度时需要进行更换，更换时只需将螺栓8卸掉，即可进行更换处理。拆卸此螺栓的工作空间较大，且单个活动挡块7上的螺栓8通常只设置1-3个，操作简单方便。
由图2可知，本发明组合式驱动套加工相对简单，活动键5与驱动套本体1都不要加工螺栓孔，只需将挡块与活动键加工成止动台阶；固定方式简单可靠；活动键5更换的操作空间大，拆卸的螺栓8数量少，螺栓上拧紧力矩也方便。
本发明的组合式驱动套活动键安装形式还包含如下结构。
如图3所示，本发明的组合式驱动套不限于一端固定、一端活动 的形式，可设计两端挡块为活动挡块7的结构方式。
如图4所示，本发明的组合式驱动套挡块的止动台阶可以为两个以上的多台阶结构。
如图5所示，本发明的组合式驱动套挡块的止动台阶可以为斜面或斜面与平面组合的方式。
以上的实施例仅仅是对本发明的优选实施方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通工程技术人员对本发明的技术方案作出的各种变型和改进，均应落入本发明的权利要求书确定的保护范围内。
工业实用性
本发明的活动键固定可靠的钻机组合式驱动套包括：驱动套本体，活动键，固定挡块，活动挡块，螺栓；本发明的活动键固定可靠的钻机组合式驱动套，与现有技术中的钻机组合式驱动套相比固定可靠、结构简单、工作稳定、维修方便、制作成本低。因此本发明的活动键固定可靠的钻机组合式驱动套经济效益、社会效益十分可观。

Claims (5)

  1. 一种活动键固定可靠的钻机组合式驱动套，其特征在于，该驱动套包括：驱动套本体，活动键，固定挡块，活动挡块，螺栓；固定挡块固定在驱动套本体凹槽的一端，活动挡块通过螺栓固定在驱动套本体凹槽的另一端，活动键通过固定挡块与活动挡块固定在驱动套本体的凹槽内。
  2. 根据权利要求1的活动键固定可靠的钻机组合式驱动套，其特征在于，所述活动键上下对称。
  3. 根据权利要求1的活动键固定可靠的钻机组合式驱动套，其特征在于，将在驱动套本体凹槽一端的固定挡块换为活动挡块。
  4. 根据权利要求1-3任一项的活动键固定可靠的钻机组合式驱动套，其特征在于，所述活动键，固定挡块和活动挡块上都加工有一定配合关系的一个或两个以上止动台阶。
  5. 根据权利要求4的活动键固定可靠的钻机组合式驱动套，其特征在于，所述止动台阶为斜面或斜面与平面的组合。
PCT/CN2014/094943 2014-04-25 2014-12-25 一种活动键固定可靠的钻机组合式驱动套 WO2015161664A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14890225.7A EP3135853B1 (en) 2014-04-25 2014-12-25 Combined-type driving sleeve of drilling rig with reliably fixed draw key

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CN201410172013.7 2014-04-25
CN201410172013.7A CN103924916B (zh) 2014-04-25 2014-04-25 一种活动键固定可靠的钻机组合式驱动套

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CN114320179A (zh) * 2022-01-06 2022-04-12 恒天九五重工有限公司 一种动力头驱动键套装置及旋挖钻机动力头

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