WO2023005210A1 - 一种动力头及旋挖钻机 - Google Patents

一种动力头及旋挖钻机 Download PDF

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Publication number
WO2023005210A1
WO2023005210A1 PCT/CN2022/079505 CN2022079505W WO2023005210A1 WO 2023005210 A1 WO2023005210 A1 WO 2023005210A1 CN 2022079505 W CN2022079505 W CN 2022079505W WO 2023005210 A1 WO2023005210 A1 WO 2023005210A1
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Prior art keywords
input shaft
reducer
power head
receiving portion
output end
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PCT/CN2022/079505
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English (en)
French (fr)
Inventor
胡兰岐
于帅
张世平
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北京三一智造科技有限公司
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Application filed by 北京三一智造科技有限公司 filed Critical 北京三一智造科技有限公司
Publication of WO2023005210A1 publication Critical patent/WO2023005210A1/zh

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    • 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

Definitions

  • the present application relates to the technical field of rotary drilling rigs, in particular to a power head and a rotary drilling rig.
  • Rotary drilling rig is a construction machine suitable for hole-forming operations in building foundation engineering. It is mainly suitable for construction in soil layers such as sandy soil, cohesive soil and silty soil. It is widely used in various foundation constructions such as cast-in-place piles and foundation reinforcement. application.
  • the rotary drilling rig includes a power head, which applies torque to the drill pipe for operation. Since the power head is exposed, the larger power head is easily affected by various factors in the external environment during construction work, and it is also easy to It is knocked by the construction materials on the construction site, so the construction efficiency is low, so it is necessary to reduce the volume of the power head as much as possible.
  • the technical problem to be solved in this application lies in the fact that the overall volume of the power head in the prior art is relatively large, which makes the construction efficiency low, so as to provide a power head and a rotary drilling rig.
  • the embodiment of the present application provides a power head
  • the power head includes: an installation box, an installation cavity is arranged inside; the installation box is also provided with an opening, and the opening is connected to the installation cavity Through;
  • the input shaft is arranged in the installation cavity;
  • the first end of the input shaft is connected with the installation cavity through a first bearing, and the second end of the input shaft protrudes outward from the opening, so
  • the opening is adapted to the input shaft;
  • the reducer is arranged on the installation box and is coaxial with the input shaft; the output end of the reducer is sleeved on the second end of the input shaft , and the output end of the reducer meshes with the second end of the input shaft.
  • the second end of the input shaft is provided with a spline portion
  • the spline portion is provided with a first spline structure
  • the output end of the reducer is provided with a spline structure corresponding to the first spline structure. Fitted second spline structure.
  • the reducer is provided with a second bearing, the second bearing is set to be supported on the outside of the output end, and the second end of the input shaft extends at least to the first end of the output end. The location of the second bearing.
  • an annular oil seal structure the oil seal mechanism is configured to be adapted to the opening and inserted into the opening for installation, and the center of the oil seal structure is provided with a receiving cavity;
  • a gear part is formed at a position of the input shaft between the first end and the second end, and an oil seal is formed at a position of the input shaft between the second end and the gear part , the oil seal part is inserted into the accommodating cavity.
  • a sealing ring is provided between the oil seal structure and the installation box;
  • a sealing ring is provided between the oil sealing structure and the oil sealing part.
  • the oil seal structure is provided with a ring portion in the circumferential direction near one end of the reducer, and the ring portion extends outward along the radial direction of the opening, and is used to stop at the mounting box. around the outside edge of the opening.
  • the ring portion is fixed on the edge of the opening by fasteners.
  • the installation box is provided with grooves on the peripheral surface of the oil seal structure or on the outer peripheral surface of the oil seal structure, and a seal is provided between the oil seal structure and the installation box.
  • the sealing ring is adapted to be embedded in the groove.
  • the reducer base is arranged on the installation box; the reducer base is suitable for installing the reducer.
  • the reducer base includes a first receiving portion and a second receiving portion connected to each other, the end of the first receiving portion away from the second receiving portion is connected to the reducer, and the second receiving portion is far away from One end of the first receiving portion is connected to the installation box.
  • both the first receiving part and the second receiving part are arranged in a cylindrical shape, the outer diameter of the first receiving part is larger than the outer diameter of the second receiving part, and the outer diameter of the first receiving part The inner diameter is larger than the inner diameter of the second receiving portion; wherein, the geometric center of the first receiving portion and the second receiving portion is on the axis of the input shaft.
  • the first receiving portion is connected to the reducer by bolts;
  • the second receiving portion is welded to the installation box.
  • the application also provides a power head, the power head comprising:
  • a reducer the reducer includes a sleeve-shaped output end and a bearing supported outside the output end;
  • the output end of the reducer is sleeved on the second end of the input shaft, and the output end is engaged with the second end of the input shaft so that the output end drives the input shaft turn.
  • An embodiment of the present application provides a rotary drilling rig, and the rotary drilling rig includes: the power head as described in any one of the above embodiments.
  • the embodiment of the present application provides a power head, which includes: an installation box with an installation cavity inside; the installation box is also provided with an opening, and the opening communicates with the installation cavity; the input shaft, arranged in the installation cavity; the first end of the input shaft is connected to the installation cavity through a first bearing, the second end of the input shaft protrudes outward from the opening, and the opening is connected to the installation cavity
  • the input shaft is compatible; the reducer is arranged on the installation box and is coaxial with the input shaft; the output end of the reducer is sleeved on the second end of the input shaft, and the The output end of the reducer is engaged with the second end of the input shaft.
  • a second bearing is arranged outside the output end of the reducer, and the second bearing can support the output end, so that the second bearing indirectly supports the second end of the input shaft. Therefore, the use of bearings directly supporting the input shaft can be reduced, the length of the power head in the axial direction can be reduced, and the production cost can be reduced.
  • Fig. 1 is the structural representation of the power head of the embodiment of the present application.
  • Figure 2 is a partially enlarged view of Figure 1;
  • Fig. 3 is a schematic structural view of the reducer base of the embodiment of the present application.
  • Fig. 4 is a structural schematic diagram of the oil seal structure of the embodiment of the present application.
  • Fig. 5 is a cross-sectional view of the oil seal structure of the embodiment of the present application.
  • Fig. 6 is a schematic structural view of the input shaft of the embodiment of the present application.
  • Fig. 7 is a structural schematic diagram of a power head.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically or electrically connected; it can be directly connected, or indirectly connected through an intermediary, or it can be the internal communication of two components, which can be wireless or wired connect.
  • installation connection
  • connection connection
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically or electrically connected; it can be directly connected, or indirectly connected through an intermediary, or it can be the internal communication of two components, which can be wireless or wired connect.
  • Rotary drilling rig is a construction machine suitable for hole-forming operations in building foundation engineering. It is mainly suitable for construction in soil layers such as sandy soil, cohesive soil and silty soil. It is widely used in various foundation constructions such as cast-in-place piles and foundation reinforcement. application.
  • an additional bearing is set at the position of the input shaft close to the reducer 1 to support the input shaft, but this installation method makes the overall length of the power head in the vertical direction longer , the overall volume is larger. Since the power head is exposed, the larger power head is easily affected by various factors of the external environment and bumped by construction materials on the construction site during construction work, so that the construction efficiency is low.
  • the technical problem to be solved in this application lies in the fact that the overall volume of the power head in the prior art is relatively large, which makes the construction efficiency low, so as to provide a power head and a rotary drilling rig.
  • the embodiment of the present application provides a power head, which includes: an installation box 2, an input shaft 3 and a reducer 1.
  • an installation cavity is provided inside the installation box 2, and an opening is also provided at the left upper end of the installation box 2, and the opening communicates with the installation cavity.
  • the input shaft 3 is arranged on the left side in the installation cavity, and the first end of the input shaft 3 is connected with the installation cavity through the first bearing 6, and the second end of the input shaft 3 is from the opening to the stick out.
  • the reducer 1 is arranged above the installation box 2 , and the axis where the output end 12 of the reducer 1 is located is coaxial with the axis where the input shaft 3 is located.
  • the output end 12 of the reducer 1 is sleeved on the second end of the input shaft 3 , and the output end 12 of the reducer 1 is engaged with the second end of the input shaft 3 . That is to say, the output end 12 of the reducer 1 is set as a sleeve structure that can be sleeved on the second end of the input shaft 3, and the sleeve structure is sleeved on the second end of the input shaft 3 and is connected to the second end of the input shaft 3. end engagement so that the output end of the reducer drives the input shaft 3 to rotate.
  • the power head in this technical solution is smaller in size, so it is not easily affected by various factors of the external environment, and also It is easy to be bumped by construction materials on the construction site, which can improve construction efficiency, reduce the number of power head parts, and reduce the use cost of additional bearings.
  • the second end of the input shaft 3 is provided with a spline portion 31, and the spline portion 31 is provided with a first spline structure, and the output end of the reducer 1 12 is provided with a second spline structure matching the first spline structure, that is to say, the output end 12 of the reducer 1 is a spline sleeve with a second spline structure inside, and the spline of the input shaft 3 After the part 31 is inserted into the spline sleeve of the reducer 1 , the first spline structure is engaged with the second spline structure, so that the output end of the reducer 1 can drive the input shaft 3 to rotate.
  • the reducer 1 is further provided with a second bearing 11, the second bearing 11 is set to be supported on the outside of the output end 12 of the reducer 1, and the second end of the input shaft 3 extends into at least To the position of the output end 12 where the second bearing 11 is provided, in this way, the output end of the reducer 1 is supported by the second bearing 11 to indirectly support the second end of the input shaft 3 .
  • Figure 7 shows a power head that supports the second end of the input shaft 3 through an additional bearing.
  • the technical solution provided by the present application is through the output end 12 of the reducer 1
  • the second bearing 11 is arranged on the outside, and the second end of the input shaft 3 extends into the output end 12.
  • the second bearing 11 supports both the output end 12 of the reducer 1 and the second end of the input shaft 3, thus eliminating the need for
  • An additional bearing is provided to independently support the second end of the input shaft 3, reducing the use of bearings and reducing the length of the power head in the axial direction, thereby reducing the size and production cost.
  • the power head further includes an annular oil seal structure 5, the oil seal structure 5 is configured to be adapted to the opening and inserted into the opening for installation, so that the oil seal structure 5 is embedded in the installation box 2 in.
  • the center of the oil seal structure 5 is provided with a housing chamber 52
  • the input shaft 3 is provided with an oil seal part 32
  • the oil seal part 32 is suitable for being inserted into the housing chamber 52 .
  • a gear portion 33 is formed at a position between the first end and the second end of the input shaft 3
  • the oil seal portion 32 is formed at a position between the second end and the gear portion 33 of the input shaft 3 .
  • the oil seal structure 5 is provided with a ring portion 51 in the circumferential direction near the edge of one end of the reducer 1 , and the ring portion 51 extends outward along the radial direction of the opening, and is used to stop on the installation box 2 outside of the edge around the opening.
  • the ring portion 51 is connected to the installation box 2 through a fixing structure, and the fixing structure may be bolts or other types of fasteners.
  • the oil seal structure 5 is directly arranged on the top of the installation box 2, so that the bottom of the oil seal structure 5 is flush with the top of the installation box 2.
  • the The oil seal structure 5 is embedded in the installation box 2, so that the overall installation space of the power head can be further reduced.
  • the outer diameter of the ring portion 51 can also be reduced, so that the width of the installation box 2 in the horizontal direction can be reduced.
  • the fixing structure may be bolts
  • the ring portion 51 is provided with a plurality of first bolt holes suitable for the insertion of the bolts
  • the installation box 2 is provided with a plurality of holes suitable for the insertion of the bolts.
  • the second bolt hole into which the bolt is inserted, the first bolt hole and the second bolt hole are provided in one-to-one correspondence.
  • the bolt passes through the first bolt hole and the second bolt hole to connect the ring portion 51 with the installation box 2 .
  • a seal ring such as the first seal ring 7 shown in FIG. 1 , is provided between the oil seal structure 5 and the installation box 2 .
  • the installation box 2 is provided with a groove 53 on the peripheral surface of the oil seal structure 5 or on the outer peripheral surface of the oil seal structure 5 , and between the oil seal structure 5 and the installation box 2
  • the provided first sealing ring 7 is suitable for being embedded in the groove 53 (as shown in FIG. 2 and FIG. 5 ).
  • the first sealing ring 7 is an O-ring.
  • a seal ring may also be provided between the oil seal structure 5 and the oil seal portion 32, so that a better seal is formed between the input shaft 3 and the installation box 2, as shown in Fig. 1 and Fig. 2 .
  • a slewing support is provided inside the installation box 2 , and the input shaft 3 is provided with a gear part 33 intermeshing with the slewing support.
  • the input shaft 3 and the slewing support can transmit power for the power head.
  • the power head further includes a reducer base 4 disposed on the installation box 2 , and the reducer base 4 is suitable for installing the reducer 1 .
  • the speed reducer base 4 can be directly welded together with the installation box 2.
  • those skilled in the art can change the connection mode between the speed reducer base and the installation box 2 according to the actual situation. This embodiment is only an example and does not limit it. , can achieve the same technical effect.
  • the reducer base 4 may include a first receiving portion 41 and a second receiving portion 42 connected to each other. As shown in FIG. 1 and FIG. 3 , the first receiving portion 41 is far away from One end of the second receiving portion 42 is connected to the reducer 1 , and one end of the second receiving portion 42 away from the first receiving portion 41 is connected to the installation box 2 .
  • both the first receiving portion 41 and the second receiving portion 42 are arranged in a cylindrical shape, and the geometric centers of the first receiving portion 41 and the second receiving portion 42 are on the axis of the input shaft 3 , wherein the first receiving portion
  • the outer diameter of a receiving portion 41 is larger than the outer diameter of the second receiving portion 42, and the inner diameter of the first receiving portion 41 is larger than the inner diameter of the second receiving portion 42, so that the technical solution shown in FIG. The reducer seat set by the rounding table is cancelled.
  • the first receiving portion 41 is also provided with a plurality of first threaded holes
  • the reducer 1 is provided with a plurality of second threaded holes
  • bolts pass through the first threaded holes and the The second threaded hole connects the first receiving portion 41 with the reducer 1 .
  • the second receiving portion 42 can be fixed to the installation box 2 by welding, or can be connected to the installation box 2 by screws.
  • connection mode between the first receiving portion 41 and the reducer 1 can change the connection mode between the first receiving portion 41 and the reducer 1 according to the actual situation.
  • This embodiment is only for illustration and not limitation, as long as the same technical effect can be achieved.
  • This embodiment also provides a kind of power head, and described power head comprises:
  • a speed reducer 1 the speed reducer 1 includes a sleeve-shaped output end 12 and a bearing supported on the outside of the output end 12;
  • the input shaft 3, the part of the input shaft 3 between the first end and the second end is formed as a gear part 33 for power output;
  • the output end 12 of the reducer 1 is sleeved on the second end of the input shaft 3 , and the output end 12 is engaged with the second end of the input shaft 3 so that the output end drives the input shaft 3 to rotate.
  • the first end of the input shaft 3 is provided with a first spline structure
  • the inner side of the output end of the reducer 1 is provided with a second spline structure
  • the input shaft 3 is connected with the second spline structure of the output end of the reducer 1 through the first spline structure. Splined engagement.
  • the input shaft 3 is inserted into the output end 12 of the reducer 1, and a bearing is set at the output end of the reducer 1 to support it, which can reduce the setting of bearings on the input shaft 3, thereby utilizing the reduction of the power head in the axial direction.
  • Upper length less volume.
  • An embodiment of the present application provides a rotary drilling rig, the rotary drilling rig includes: the power head as described in any one of the above embodiments.
  • the power head in this technical solution is smaller in size, so it is not easily affected by various factors of the external environment, and also It is easy to be bumped by construction materials on the construction site, which can improve construction efficiency, reduce the number of power head parts, and reduce the use cost of additional bearings.

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Abstract

公开了一种动力头及旋挖钻机。动力头包括：安装箱体(2)，内部设置有安装腔，安装箱体上还设置有开口，该开口与安装腔贯通；输入轴(3)，设置在安装腔中，输入轴的第一端通过第一轴承(6)与安装腔连接，输入轴的第二端从安装箱体的开口向外伸出；减速机(1)，设置在安装箱体上，并与输入轴同轴；减速机的输出端套在输入轴的第二端上，且减速机的输出端与输入轴的第二端相啮合。这种设置，能够减小动力头整体在竖直方向上的长度，从而减小动力头的整体体积，从而能够提高施工效率。

Description

一种动力头及旋挖钻机 技术领域
本申请涉及旋挖钻机技术领域，具体涉及一种动力头及旋挖钻机。
背景技术
旋挖钻机是一种适合建筑基础工程中成孔作业的施工机械，主要适于砂土、粘性土和粉质土等土层施工，在灌注桩、基础加固等多种地基基础施工中得到广泛应用。
旋挖钻机包括动力头，通过动力头对钻杆施加扭矩进行作业，由于动力头裸露在外，所以在进行施工工作时，较大体积的动力头整体容易被外部环境的各种因素影响，还容易被施工现场的施工材料磕碰，从而施工效率较低，因此需要尽量减少动力头的体积。
发明内容
因此，本申请要解决的技术问题在于现有技术中存在的动力头整体体积较大，使得施工效率较低的问题，从而提供一种动力头及旋挖钻机。
为实现上述目的，本申请实施例提供了一种动力头，该动力头包括：安装箱体，内部设置有安装腔；所述安装箱体上还设置有开口，所述开口与所述安装腔贯通；输入轴，设置在所述安装腔中；所述输入轴的第一端通过第一轴承与所述安装腔连接，所述输入轴的第二端从所述开口向外伸出，所述开口与所述输入轴相适配；减速机，设置在所述安装箱体上，并与所述输入轴同轴；所述减速机的输出端套在所述输入轴的第二端上，且所述减速机的输出端与所述输入轴的第二端相啮合。
可选地，所述输入轴的第二端设置有花键部，所述花键部上设置有第一花键结构，所述减速机的输出端设置有与所述第一花键结构相配合的第二花键结构。
可选地，所述减速机设置有第二轴承，所述第二轴承设置为支撑在所述输 出端的外侧，且所述输入轴的第二端至少伸入至所述输出端的设置所述第二轴承的位置。
可选地，还包括：环状的油封结构，所述油封机构设置为与所述开口适配并插入所述开口内安装，所述油封结构的中心设置有容纳腔；
所述输入轴的位于所述第一端和所述第二端之间的位置形成有齿轮部，所述输入轴的位于所述第二端和所述齿轮部之间的部位形成有油封部，所述油封部插入所述容纳腔中。
可选地，所述油封结构与所述安装箱体之间设置有密封圈；
和/或，所述油封结构与所述油封部之间设置有密封圈。
可选地，所述油封结构在靠近所述减速机一端的边缘周向设置有环部，所述环部沿所述开口的径向向外延伸，用于止挡在所述安装箱体的围绕所述开口的边缘外侧。
可选地，所述环部通过紧固件固定于所述开口的边缘上。
可选地，所述安装箱体在贴合所述油封结构的周向表面或者在所述油封结构的外周表面上开设有凹槽，所述油封结构和所述安装箱体之间设置有密封圈，所述密封圈适于嵌入所述凹槽中。
可选地，还包括：
减速机座，设置在所述安装箱体上；所述减速机座适于安装所述减速机。
可选地，所述减速机座包括相互连接的第一承接部和第二承接部，所述第一承接部远离所述第二承接部的一端与减速机连接，所述第二承接部远离所述第一承接部的一端与所述安装箱体连接。
可选地，所述第一承接部与所述第二承接部均呈筒状设置，所述第一承接部的外径大于所述第二承接部的外径，所述第一承接部的内径大于所述第二承接部的内径；其中，所述第一承接部与所述第二承接部的几何中心在所述输入轴的轴线上。
可选地，所述第一承接部通过螺栓连接于所述减速机；
和/或，所述第二承接部焊接于所述安装箱体。
本申请还提供一种动力头，所述动力头包括：
减速机，所述减速机包括套筒状的输出端及支撑在所述输出端外侧的轴承；
输入轴，所述输入轴的位于第一端和第二端之间的部分形成为用于动力输出的齿轮部；
其中，所述减速机的所述输出端套在所述输入轴的第二端上，且所述输出端与所述输入轴的第二端相啮合以使得所述输出端带动所述输入轴转动。
本申请实施例提供了一种旋挖钻机，该旋挖钻机包括：如上述任一实施例所述的动力头。
本申请的技术方案有如下优点：
1.本申请实施例提供了一种动力头，该动力头包括：安装箱体，内部设置有安装腔；所述安装箱体上还设置有开口，所述开口与所述安装腔贯通；输入轴，设置在所述安装腔中；所述输入轴的第一端通过第一轴承与所述安装腔连接，所述输入轴的第二端从所述开口向外伸出，所述开口与所述输入轴相适配；减速机，设置在所述安装箱体上，并与所述输入轴同轴；所述减速机的输出端套在所述输入轴的第二端上，且所述减速机的输出端与所述输入轴的第二端相啮合。
如此设置，通过将减速机的输出端套在输入轴的第二端上，且减速机的输出端与输入轴的第二端相啮合，从而无需通过额外的轴承单独支撑输入轴的第二端，这样能够减小动力头整体在竖直方向上的长度，从而减小动力头的整体体积。并且，通过减小动力头的整体体积，使得施工过程中，相较于较大体积的动力头，本技术方案中的动力头体积较小，所以不容易被外部环境的各种因素影响，也容易被施工现场的施工材料磕碰，从而能够提高施工效率，同时减少了动力头零部件数量，降低额外轴承承担的使用费用。
2.与通过额外的轴承来支撑输入轴的第二端来保证输入轴的正常工作的方案不同，本技术方案中，通过将输入轴的第二端插入减速机的套筒状的输出端， 且在减速机的输出端外侧设置第二轴承，所述第二轴承能够支撑所述输出端，这样第二轴承对输入轴的第二端起到间接的支撑作用。从而能够减少直接支撑输入轴轴承的使用，可以减小动力头在轴向上的长度且可以降低生产成本。
附图说明
为了更清楚地说明本申请具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施方式，对于本领域普通工人来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例动力头的结构示意图；
图2为图1的部分放大图；
图3为本申请实施例减速机座的结构示意图；
图4为本申请实施例油封结构的结构示意图；
图5为本申请实施例油封结构的剖视图；
图6为本申请实施例输入轴的结构示意图；
图7为一种动力头的结构示意图。
附图标记：
1、减速机；11、第二轴承；12-输出端；2、安装箱体；3、输入轴；31、花键部；32、油封部；33、齿轮部；4、减速机座；41、第一承接部；42、第二承接部；5、油封结构；51、环部；52、容纳腔；53-凹槽；6、第一轴承；7-第一密封圈；8-第二密封圈。
具体实施方式
下面将结合附图对本申请的技术方案进行清楚、完整地描述，显然，所描述的实施例是本实用新型一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通工人在没有做出创造性劳动前提下所获得的所有其他实 施例，都属于本申请保护的范围。
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，还可以是两个元件内部的连通，可以是无线连接，也可以是有线连接。对于本领域的普通工人而言，可以具体情况理解上述术语在本申请中的具体含义。
此外，下面所描述的本申请不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
旋挖钻机是一种适合建筑基础工程中成孔作业的施工机械，主要适于砂土、粘性土和粉质土等土层施工，在灌注桩、基础加固等多种地基基础施工中得到广泛应用。目前，传统的减速机与输入轴在安装时，是在输入轴靠近减速机1的位置设置额外的轴承来支撑输入轴，但这种安装方式使得动力头整体在竖直方向上的长度较长，整体体积较大。由于动力头裸露在外，所以在进行施工工作时，较大体积的动力头整体容易被外部环境的各种因素影响，还容易被施工现场的施工材料磕碰，从而施工效率较低。
因此，本申请要解决的技术问题在于现有技术中存在的动力头整体体积较大，使得施工效率较低的问题，从而提供一种动力头及旋挖钻机。
实施例1
如图1至图6所示，本申请实施例提供了一种动力头，该动力头包括：安 装箱体2、输入轴3以及减速机1。
具体地，在本申请实施例中，安装箱体2的内部设置有安装腔，所述安装箱体2的左侧上端还设置有开口，所述开口与所述安装腔贯通。输入轴3设置在所述安装腔中的左侧，并且所述输入轴3的第一端通过第一轴承6与所述安装腔连接，所述输入轴3的第二端从所述开口向外伸出。减速机1设置在所述安装箱体2的上方，并且减速机1的输出端12所在的轴线与所述输入轴3所在的轴线同轴。在本申请实施例中，所述减速机1的输出端12套在输入轴3的第二端上，且所述减速机1的输出端12与所述输入轴3的第二端相啮合。也就是说，设置减速机1的输出端12为能够套在输入轴3的第二端上的套筒结构，该套筒结构套在输入轴3的第二端并与输入轴3的第二端啮合以使得减速机的输出端带动输入轴3旋转。
如此设置，通过将减速机1的输出端12套在输入轴3的第二端上，且减速机1的输出端12与输入轴3的第二端相啮合，从而无需通过额外的轴承单独来支撑输入轴3的第二端，相较于如图7所示的传统的减速机1与输入轴3的安装流程，由于减少了轴承的使用，从而能够减小动力头整体在竖直方向上的长度，从而减小动力头的整体体积。并且，通过减小动力头的整体体积，使得施工过程中，相较于较大体积的动力头，本技术方案中的动力头体积较小，所以不容易被外部环境的各种因素影响，也容易被施工现场的施工材料磕碰，从而能够提高施工效率，同时减少了动力头零部件数量，降低额外轴承承担的使用费用。
可选地，在本申请实施例中，所述输入轴3的第二端设置有花键部31，所述花键部31上设置有第一花键结构，所述减速机1的输出端12设置有与所述第一花键结构相配合的第二花键结构，也就是说，减速机1的输出端12为内侧具有第二花键结构的花键套，输入轴3的花键部31插入减速机1的花键套后，第一花键结构与第二花键结构啮合，从而减速机1的输出端能够驱动输入轴3旋转。
在本申请实施例中，所述减速机1内部还设置有第二轴承11，第二轴承11设置为支撑在减速器1的输出端12的外侧，且输入轴3的第二端至少伸入至输出端12的设置第二轴承11的位置，这样，通过第二轴承11支撑减速器1的输出端从而间接地支撑输入轴3的第二端。
图7中显示了一种通过额外的轴承来支撑输入轴3的第二端的动力头，相较于图7中所显示的方案，本申请提供的技术方案通过在减速器1的输出端12的外侧设置第二轴承11，输入轴3的第二端伸入到输出端12内，第二轴承11对减速器1的输出端12和输入轴3的第二端均起到支撑作用，从而无需设置额外的轴承来单独支撑输入轴3的第二端，减少轴承的使用，可以减少动力头在轴向上的长度，由此缩小体积并降低生产成本。
可选地，在本申请实施例中，该动力头还包括环状的油封结构5，油封结构5设置为与所述开口适配并插入所述开口内安装，使得油封结构5嵌入安装箱体2中。如图1以及图4-6所示，所述油封结构5的中心设置有容纳腔52，所述输入轴3上设置有油封部32，所述油封部32适于插入所述容纳腔52中。进一步地，所述输入轴3的位于第一端和第二端之间的位置形成有齿轮部33，输入轴3的位于第二端和齿轮部33之间的部位形成有所述油封部32。所述油封结构5在靠近所述减速机1一端的边缘周向设置有环部51，所述环部51沿所述开口的径向向外延伸，用于止挡在所述安装箱体2的围绕所述开口的边缘外侧。所述环部51与所述安装箱体2通过固定结构连接，所述固定结构可以是螺栓或其它类型的紧固件。
如此设置，相较于图7所示的技术方案中直接将油封结构5设置在安装箱体2的顶部，使得油封结构5的底部与安装箱体2的顶部平齐，本申请实施例可以将油封结构5嵌入安装箱体2中，从而可以进一步降低动力头的整体安装空间。并且，相对于图7技术方案，还能够减小环部51的外径，从而能够减小安装箱体2在水平方向上的宽度。
在本申请实施例中，所述固定结构可以为螺栓，所述环部51开设有多个适 于所述螺栓插入的第一螺栓孔，所述安装箱体2开设有多个适于所述螺栓插入的第二螺栓孔，第一螺栓孔和第二螺栓孔一一对应设置。所述螺栓穿过所述第一螺栓孔和所述第二螺栓孔将所述环部51与所述安装箱体2连接。进一步地，所述油封结构5与所述安装箱体2之间设置有密封圈，如图1所示的第一密封圈7。具体的，所述安装箱体2在贴合所述油封结构5的周向表面上或者在油封结果5的结构外周表面上开设有凹槽53，所述油封结构5与安装箱体2之间设置的第一密封圈7适于嵌入所述凹槽53中(如图2和图5)。可选地，第一密封圈7为O型圈。另外，所述油封结构5与所述油封部32之间也可以设置有密封圈，由此输入轴3与安装箱体2之间形成较好的密封，如图1和图2所显示的第二密封圈8。
当然，本领域技术人员可根据实际情况对密封圈的类型进行改变，本实施例仅仅是举例说明，并不加以限制，能够起到相同的技术效果即可。
在本申请实施例中，安装箱体2内部还设置有回转支撑，输入轴3设置有与回转支撑相互啮合的齿轮部33，输入轴3与回转支撑可以为动力头传递动力。
可选地，在本申请实施例中，该动力头还包括减速机座4，减速机座4设置在所述安装箱体2上，所述减速机座4适于安装所述减速机1。减速机座4可以直接与安装箱体2焊接在一起，当然，本领域技术人员可以根据实际情况改变减速基座与安装箱体2的连接方式，本实施例仅仅是举例说明，并不加以限制，能够起到相同的技术效果即可。
具体地，在本申请实施例中，所述减速机座4可以包括相互连接的第一承接部41和第二承接部42，如图1和图3所示，所述第一承接部41远离所述第二承接部42的一端与减速机1连接，所述第二承接部42远离所述第一承接部41的一端与所述安装箱体2连接。
进一步地，所述第一承接部41与所述第二承接部42均呈筒状设置，第一承接部41与第二承接部42的几何中心在输入轴3的轴线上，其中所述第一承接部41的外径大于所述第二承接部42的外径，所述第一承接部41的内径大于 所述第二承接部42的内径，从而将图7所示的技术方案中呈倒圆台设置的减速机座取消。
在本申请实施例中，所述第一承接部41还设置有多个第一螺纹孔，所述减速机1设置有多个第二螺纹孔，螺栓穿过所述第一螺纹孔和所述第二螺纹孔将所述第一承接部41与所述减速机1连接。第二承接部42可以通过焊接的方式固定于安装箱体2，也可以通过螺丝连接于安装箱体2。
当然，本领域技术人员可根据实际情况对第一承接部41与减速机1的连接方式进行改变，本实施例仅仅是举例说明，并不加以限制，能够起到相同的技术效果即可。
实施例2
该实施例还提供一种动力头，所述动力头包括：
减速机1，所述减速机1包括套筒状的输出端12及支撑在所述输出端12外侧的轴承；
输入轴3，所述输入轴3的位于第一端和第二端之间的部分形成为用于动力输出的齿轮部33；
其中，减速机1的所述输出端12套在输入轴3的第二端上，且输出端12与所述输入轴3的第二端相啮合以使得所述输出端带动输入轴3转动。
其中，输入轴3的第一端设置有第一花键结构，减速机1的输出端的内侧设置有第二花键结构，输入轴3通过第一花键结构与减速机1的输出端的第二花键结构啮合。
本实施例中输入轴3通过插入到减速机1的输出端12，且在减速机1的输出端设置轴承来支撑的方式可以减少在输入轴3上设置轴承，从而利用减少动力头在轴向上的长度，减少体积。
实施例3
本申请实施例化提供了一种旋挖钻机，该旋挖钻机包括：如上述任一实施例所述的动力头。
如此设置，通过将减速机1的输出端12套在输入轴3的第二端上，且减速机1的输出端12与输入轴3的第二端相啮合，从而无需通过额外的轴承单独支撑输入轴3的第二端，相较于传统的减速机1与输入轴3的安装流程，能够减小动力头整体在竖直方向上的长度，从而减小动力头的整体体积。并且，通过减小动力头的整体体积，使得施工过程中，相较于较大体积的动力头，本技术方案中的动力头体积较小，所以不容易被外部环境的各种因素影响，也容易被施工现场的施工材料磕碰，从而能够提高施工效率，同时减少了动力头零部件数量，降低额外轴承承担的使用费用。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通工人来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本申请创造的保护范围之中。

Claims (15)

  1. 一种动力头，其特征在于，包括：
    安装箱体(2)，内部设置有安装腔；所述安装箱体(2)上还设置有开口，所述开口与所述安装腔贯通；
    输入轴(3)，设置在所述安装腔中；所述输入轴(3)的第一端通过第一轴承与所述安装腔连接，所述输入轴(3)的第二端从所述开口向外伸出；
    减速机(1)，设置在所述安装箱体(2)上，并与所述输入轴(3)同轴；所述减速机(1)的输出端套在所述输入轴(3)的第二端上，且所述减速机(1)的输出端与所述输入轴(3)的第二端相啮合。
  2. 根据权利要求1所述的动力头，其特征在于，所述输入轴(3)的第二端设置有花键部(31)，所述花键部(31)上设置有第一花键结构，所述减速机(1)的输出端设置有与所述第一花键结构相配合的第二花键结构。
  3. 根据权利要求1所述的动力头，其特征在于，所述减速机(1)设置有第二轴承(11)，所述第二轴承(11)设置为支撑在所述输出端的外侧，且所述输入轴(3)的第二端至少伸入至所述输出端的设置所述第二轴承(11)的位置。
  4. 根据权利要求1-3中任一项所述的动力头，其特征在于，还包括：环状的油封结构(5)，所述油封机构(5)设置为与所述开口适配并插入所述开口内安装，所述油封结构(5)的中心设置有容纳腔(52)；
    所述输入轴(3)的位于所述第一端和所述第二端之间的位置形成有齿轮部(33)，所述输入轴(3)的位于所述第二端和所述齿轮部(33)之间的部位形成有油封部(32)，所述油封部(32)插入所述容纳腔(52)中。
  5. 根据权利要求4所述的动力头，其特征在于，所述油封结构与所述安装箱体(2)之间设置有密封圈；
    和/或，所述油封结构(5)与所述油封部(32)之间设置有密封圈。
  6. 根据权利要求4所述的动力头，其特征在于，所述油封结构(5)在靠近所述减速机(1)一端的边缘周向设置有环部(51)，所述环部(51)沿所述开 口的径向向外延伸，用于止挡在所述安装箱体(2)的围绕所述开口的边缘外侧。
  7. 根据权利要求6所述的动力头，其特征在于，所述环部(51)通过紧固件固定于所述开口的边缘上。
  8. 根据权利要求4所述的动力头，其特征在于，所述安装箱体(2)在贴合所述油封结构(5)的周向表面或者在所述油封结构(5)的外周表面上开设有凹槽，所述油封结构(5)和所述安装箱体(2)之间设置有密封圈，所述密封圈适于嵌入所述凹槽中。
  9. 根据权利要求1-8中任一项所述的动力头，其特征在于，还包括：
    减速机座(4)，设置在所述安装箱体(2)上；所述减速机座(4)适于安装所述减速机(1)。
  10. 根据权利要求9所述的动力头，其特征在于，所述减速机座(4)包括相互连接的第一承接部(41)和第二承接部(42)，所述第一承接部(41)远离所述第二承接部(42)的一端与减速机(1)连接，所述第二承接部(42)远离所述第一承接部(41)的一端与所述安装箱体(2)连接。
  11. 根据权利要求10所述的动力头，其特征在于，所述第一承接部(41)与所述第二承接部(42)均呈筒状设置，所述第一承接部(41)的外径大于所述第二承接部(42)的外径，所述第一承接部(41)的内径大于所述第二承接部(42)的内径；其中，所述第一承接部(41)与所述第二承接部(42)的几何中心在所述输入轴(3)的轴线上。
  12. 根据权利要求10所述的动力头，其特征在于，所述第一承接部(41)通过螺栓连接于所述减速机(1)。
  13. 根据权利要求10所述的动力头，其特征在于，所述第二承接部(42)焊接于所述安装箱体(2)。
  14. 一种动力头，其特征在于，所述动力头包括：
    减速机(1)，所述减速机(1)包括套筒状的输出端及支撑在所述输出端外侧的轴承；
    输入轴(3)，所述输入轴(3)的位于第一端和第二端之间的部分形成为用于动力输出的齿轮部(33)；
    其中，所述减速机(1)的所述输出端套在所述输入轴(3)的第二端上，且所述输出端与所述输入轴(3)的第二端相啮合以使得所述输出端带动所述输入轴(3)转动。
  15. 一种旋挖钻机，其特征在于，包括：如权利要求1至13中任一项所述的动力头。
PCT/CN2022/079505 2021-07-29 2022-03-07 一种动力头及旋挖钻机 WO2023005210A1 (zh)

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