WO2012022187A1 - 混凝土泵送设备及其臂架装置 - Google Patents

混凝土泵送设备及其臂架装置 Download PDF

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Publication number
WO2012022187A1
WO2012022187A1 PCT/CN2011/075531 CN2011075531W WO2012022187A1 WO 2012022187 A1 WO2012022187 A1 WO 2012022187A1 CN 2011075531 W CN2011075531 W CN 2011075531W WO 2012022187 A1 WO2012022187 A1 WO 2012022187A1
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WO
WIPO (PCT)
Prior art keywords
boom
rotating
rotating shaft
conveying pipe
driven gear
Prior art date
Application number
PCT/CN2011/075531
Other languages
English (en)
French (fr)
Inventor
杨滨
谢世惠
谭海波
Original Assignee
湖南三一智能控制设备有限公司
三一重工股份有限公司
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 湖南三一智能控制设备有限公司, 三一重工股份有限公司 filed Critical 湖南三一智能控制设备有限公司
Publication of WO2012022187A1 publication Critical patent/WO2012022187A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose

Definitions

  • This invention relates to the field of construction machinery, and more particularly to a boom assembly for concrete pumping equipment. Furthermore, the invention relates to a concrete pumping device comprising the above described boom device. Background technique
  • Concrete pumping equipment is the main construction machinery in the construction process, and plays an increasingly important role in China's economic construction.
  • the concrete pumping equipment generally comprises a walking device, a pumping device and a boom device.
  • the walking device is mainly used for transferring the working place of the concrete pumping device
  • the pumping device and the arm frame device are mainly used for conveying concrete to The location where concrete is required during construction.
  • the adjacent two booms rotate mainly in the vertical plane. If horizontal rotation is required, it needs to be realized by the rotation of the rotary table, and the inertia is large, which not only improves the energy consumption but also adversely affects the service life of the entire boom.
  • FIG. 1 is a schematic structural view of a typical horizontally rotatable boom device in the prior art.
  • the prior art boom device includes a first boom 11 and a second boom 16 .
  • the first boom 11 is fixed with a first conveying pipe 12
  • the second boom 16 is fixed with a first arm.
  • the second conveying pipe 15, the first boom 11 and the second boom 16 are connected by the rotating shaft 17, and the rotating shaft 17 is fixedly connected with the second boom 16, and the first conveying pipe 12 and the second conveying pipe 15 are rotatable by the pipe clamp 13.
  • the central axis of the pipe clamp 13 coincides with the central axis of the rotating shaft 17, and the end of the rotating shaft 17 is also fixed with a motor 14, and the first conveying pipe 12 and the second conveying pipe 15 are respectively located on the first side of the first boom 11 And on a first side of the second boom 16, the motor 14 is located on a second side of the boom (including the first boom 11 and the second boom 16).
  • the motor 14 is brought into an operating state, and the output shaft drives the rotating shaft 17 to rotate, thereby driving the second boom 16 to rotate horizontally.
  • the entire boom, duct, and drive are arranged separately, occupying space Great, not easy to implement on concrete pumping equipment.
  • Another object of the present invention is to provide a concrete pumping apparatus including the above-described boom apparatus.
  • the present invention provides a boom apparatus for a concrete pumping apparatus, including a first boom and a second boom connected by a rotating shaft, and the first boom is fixed with the first duct a second conveying pipe is fixed on the second boom, and the first conveying pipe and the second conveying pipe are connected by a rotating connecting shaft coaxial with the rotating shaft, and further comprises a rotating power component and a transmission component.
  • the rotary power component is mounted to the first boom, the transmission component is mounted inside the first boom, and both ends of the transmission component are respectively associated with an output shaft of the rotary power component and the The second boom is connected.
  • the second boom is fixedly coupled to the rotating shaft, and the rotating shaft is provided with a driven gear, and the rotating power component drives the driven gear to rotate through a transmission component.
  • the rotary sleeve is further disposed on the rotating shaft, the rotating sleeve is fixedly connected to the second arm, the rotating sleeve is sleeved with a driven gear, and the rotating power component drives the The driven gear rotates.
  • the rotating shaft is provided with a through hole extending along an axial direction thereof, and the first conveying pipe and the second conveying pipe connected through the rotating connecting shaft pass through the through hole, and the rotating connection The shaft is located within the through hole.
  • the rotary power component is an electric motor or a motor
  • the transmission component includes a speed reducer and a driving gear
  • an input shaft of the speed reducer is connected to an output shaft of the motor or the motor
  • An output shaft of the speed reducer is coupled to the driving gear
  • the driving gear meshes with the driven gear
  • the rotary power component is a cylinder
  • the transmission component includes a rack
  • a piston rod of the cylinder is coupled to the rack
  • the rack meshes with the driven gear
  • the driven gear has a circumferential angle of 180 degrees and is fixed to a side facing the first arm.
  • the present invention also provides a concrete pumping apparatus comprising a frame and the boom device of any of the above.
  • the boom device for a concrete pumping device comprises a first boom and a second boom connected by a rotating shaft, wherein the first boom is fixed with a first conveying pipe, and the second boom is fixed with a second conveying pipe, the first conveying pipe and the second conveying pipe are connected by a rotating connecting shaft coaxial with the rotating shaft, further comprising a rotating power component and a transmission component, wherein the rotating power component is mounted on the first boom, the transmission component Installed inside the first boom, and the transmission component is coupled to the output shaft of the rotary power component and the second boom.
  • the rotating shaft of the boom device for concrete pumping apparatus is provided with a through hole extending in the axial direction thereof, a first conveying pipe and a second conveying connected by the rotating connecting shaft
  • the tube passes through the through hole, and the rotating connection shaft is located in the through hole.
  • the arrangement of the through holes in the rotating shaft enables the first conveying pipe and the second conveying pipe to be respectively located on both sides of the first boom and the second boom, further reducing the lateral width of the boom device, so that the first conveying pipe and The arrangement of the second duct is more reasonable, and the distance between the first arm and the second arm is smaller, and the components of the boom device More compact, further reducing the space occupied.
  • FIG. 1 is a schematic structural view of a typical horizontally rotatable boom device in the prior art
  • FIG. 2 is a schematic structural view of a boom device according to an embodiment of the present invention
  • a schematic plan view of the boom portion of the boom device
  • FIG. 4 is a schematic view showing a state in which the second boom of the boom device shown in FIG. 2 is at different positions;
  • FIG. 5 is a schematic cross-sectional view showing the boom device shown in FIG.
  • Fig. 6 is a partially enlarged view of a portion A shown in Fig. 5.
  • the core of the invention is to provide a boom device for a concrete pumping device, the components of which are arranged reasonably, the structure is simple and compact, saving space, so that the boom device can be conveniently placed in the concrete Application on the boom of the pumping device.
  • Another core of the present invention is to provide a concrete pumping apparatus including the above-described boom apparatus.
  • FIG. 2 is a schematic structural view of a boom device according to an embodiment of the present invention
  • FIG. 3 is a top plan view of a boom portion of the boom device shown in FIG. 2
  • 2 is a schematic view showing a state in which the second boom of the boom device is in different positions
  • FIG. 5 is a schematic cross-sectional view of the boom device shown in FIG. 2
  • FIG. 6 is a partially enlarged view of the portion A shown in FIG. .
  • the boom apparatus for concrete pumping apparatus includes a first boom 21 and a second boom 26, and the first boom 21 and the second boom 26 are connected by a rotating shaft 27.
  • a first conveying pipe 22 is fixed to the first boom 21, and a second conveying pipe 25 is fixed to the second arm frame 26.
  • the first conveying pipe 22 and the second conveying pipe 25 are connected by a rotating connecting shaft 23, and the rotating connecting shaft
  • the axis of 23 is the same as the axis of the rotating shaft 27, and the first boom 21 is also fixed with a rotating power component for providing a force for rotating the second boom 26 relative to the first boom 21, and the rotating power component
  • the force is transmitted to the first through the transmission member 29 provided inside the first boom 21
  • the two-arm frame 26; on the other hand, the rotary connecting shaft 23 can specifically be a device capable of satisfying functional requirements such as a clamp or a pipe clamp.
  • the second boom 26 having the box structure can be inserted into the first boom 21, and a reinforcing plate 33 is arranged in the space between the two (shown in the figure) 6)), then a shaft hole is opened at the overlapping position of the two, and the shaft 23 is inserted into the shaft hole.
  • the rotary power component is first set to the working state, and the rotary power component is generated.
  • Rotating the force, and transmitting the rotational force to the second boom 26 through the transmission member 29, driving the rotation of the second boom 26, and at the same time since the first conveying pipe 22 is fixed to the first boom 21, the second The conveying pipe 25 is fixed to the second boom 26, and the rotating shaft connecting shaft 23 is coaxial with the rotating shaft 27, so that the second conveying pipe 25 can be rotated while the second boom 26 is rotated, thereby realizing the pumping position of the concrete.
  • the change enables the concrete to reach the target position smoothly and achieve the purpose of adjustment.
  • the boom device provided by the present invention after completing the basic position adjustment, mounts the transmission member 29 to the inside of the cavity of the first boom 21, so that the components of the boom device are more compactly arranged.
  • the arrangement is more reasonable, thereby avoiding the transmission component occupying too much space in the lateral direction of the boom, facilitating the installation of the boom device on the concrete pumping device, and expanding the applicability of the boom device in the concrete pumping device.
  • the second boom 26 can be fixedly coupled to the rotating shaft 27, and accordingly, the first boom
  • the driven gear 31 is further provided on the rotating shaft 27, and the rotary power member drives the driven gear 31 to rotate by the transmission member.
  • the driven gear 31 can be directly disposed at a position where the rotating shaft 27 is connected to the transmission member, and the rotating shaft 27 and the rotating shaft hole of the second arm frame 26 have an interference fit.
  • the boom 26 is inserted into the casing of the first boom 21, and the second boom 26 is heated, and then the rotating shaft 27 provided with the driven gear 31 is inserted into the rotating shaft hole to complete the connection.
  • the rotating power component operates to transmit the rotational force to the driven gear 31 through the transmission component, and the driven gear 31 drives the rotating shaft 27 to rotate, and the rotating shaft 27 drives the second boom 26 relative to the first boom 21 Rotating, finally realizing the change of the position of the second conveying pipe 25, The purpose of changing the concrete conveying position is achieved.
  • the boom device for the concrete pumping device provided by the present invention may further include a rotating sleeve 28 that is sleeved on the rotating shaft 27, and the rotating sleeve 28 is fixedly connected with the second arm 26, and the rotating shaft
  • the sleeve 28 is provided with a driven gear 31, and the rotary power member drives the driven gear 31 to rotate by the transmission member.
  • the rotating shaft 27 is fixedly coupled to the first boom 21.
  • the driven gear 31 is first fixed at an appropriate position of the rotating sleeve 28 to facilitate the transmission of the rotating force through the transmission member, and then the rotating sleeve 28 is fixed to the second boom 26, and then the second boom 26 is Inserted into the interior of the first boom 21, the through hole of the rotating sleeve 28 is aligned with the rotating shaft hole, and finally the rotating shaft 27 is inserted into the rotating shaft hole, and the rotating shaft 27 is fixed to the first arm.
  • the setting of the sleeve 28 facilitates the installation of the boom assembly, and at the same time, the connection of the second boom 26 to the sleeve 28 is completed on the outside of the first boom 21 housing, ensuring the reliability of the connection.
  • the driven gear 31 can be half of the entire gear, that is, the driven gear has a circumferential angle of 180 degrees and is fixed to It faces the side of the first boom 21.
  • a through hole can be formed in the second boom 26, the rotating sleeve 28 can be passed through the through hole, and the two can be connected by welding or the like, and then the driven gear 31 can be passed through the casing of the second boom 26. It is in contact with the outer side wall of the rotating sleeve 28, is connected by welding, or is directly embedded on the outer side of the rotating sleeve 28, or is fixed to each other by a screw or the like and the sleeve 28, and finally the second arm frame 26 is loaded into the first arm frame 21. The inside of the cabinet is inserted between the two protruding ears of the first boom 21.
  • both the first boom 21 and the second boom 26 have a certain thickness, during the rotation, when the rotation is to a certain extent, motion interference is inevitable, so the two extreme positions of the second boom 26 are With the relevant size of the boom case and the change of the circumferential angle of the driven gear 31, the limit rotation position of the slave boom when the circumferential angle of the driven gear is 180 degrees is shown in FIG.
  • the driven gear 31 of 180 degrees can fully satisfy the requirements of the rotation range. Further, the volume of the driven gear 31 is reduced, thereby reducing the required material and reducing the cost.
  • a boss 271 can be disposed at one end of the rotating shaft 27, and a positioning hole is formed at the other end of the rotating shaft 27. After the rotating shaft is inserted into the rotating shaft hole, the positioning plate 272 is inserted into the positioning hole, the positioning plate 272, the boss 271 and the The fixing of the rotating shaft 27 can be achieved by the cooperation of the one arm frame 21 with each other.
  • the rotating shaft 27 may further open a through hole extending in the axial direction thereof, and the first conveying pipe 22 and the second conveying pipe 25 connected by the rotating connecting shaft 23 pass through the through hole. And the rotary connecting shaft 23 is located in the through hole.
  • the arrangement of the through holes in the rotating shaft 27 enables the first conveying pipe 22 and the second conveying pipe 25 to be respectively located on both sides of the first boom 21 and the second boom 26, further reducing the lateral width of the boom device, so that The arrangement of the first conveying pipe 22 and the second conveying pipe 25 is more reasonable, the distance between the conveying pipe and the boom is smaller, the structure of the boom device is more compact, and the occupied space is further reduced.
  • the rotary power component provided by the present invention may be an electric motor 24, and correspondingly, the transmission component 29 may include a speed reducer 291 and a driving gear 292, the speed reducer 291
  • the input shaft is coupled to the output shaft of the motor 24, the output shaft of the speed reducer 291 is coupled to the drive gear 292, and the drive gear 292 is meshed with the driven gear 31.
  • the housing of the first boom 21 is also A support base 32 can be provided.
  • the rotary power member is not limited to the above-described electric motor, and may be a member capable of providing rotational power such as a motor.
  • the rotary power component of the boom device provided by the present invention is not limited to an electric motor, and may also be a cylinder.
  • the transmission component may include a rack, the piston rod of the cylinder is connected to the rack, the rack and the driven Gear meshing.
  • the telescopic movement of the cylinder drives the rack to move linearly, and the linear motion is changed into the rotational motion of the driven gear by the meshing relationship, thereby realizing the rotation of the second boom 26 and the second duct 25.
  • the present invention also provides a frame including the frame and the above-described arm frame
  • a frame including the frame and the above-described arm frame

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

混凝土泵送设备及其臂架装置 本申请要求于 2010 年 08 月 19 日提交中国专利局、 申请号为 201020299864.5、 发明名称为"混凝土泵送设备及其臂架装置"的中国专利 申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及工程机械领域， 特别是涉及一种用于混凝土泵送设备的臂 架装置。 此外， 本发明还涉及一种包括上述臂架装置的混凝土泵送设备。 背景技术
混凝土泵送设备是施工过程中的主要工程机械， 在我国经济建设中发 挥着越来越重要的作用。
现有技术中， 混凝土泵送设备一般包括行走装置、 泵送装置和臂架装 置， 行走装置主要用于混凝土泵送设备工作场地的转移， 泵送装置和臂架 装置主要用于将混凝土输送至施工过程中需要混凝土的地点。 相邻两臂架 之间主要在竖直面内转动， 若需要水平转动， 需要通过转台转动来实现， 其惯性较大， 不但提高了能耗而且对整个臂架的使用寿命有不利的影响。
请参考图 1 , 图 1为现有技术中一种典型的可水平转动臂架装置的结 构示意图。
如图 1所示， 现有技术中的臂架装置包括第一臂架 11和第二臂架 16, 第一臂架 11上固定有第一输送管 12,第二臂架 16上固定有第二输送管 15 , 第一臂架 11和第二臂架 16通过转轴 17连接， 且转轴 17与第二臂架 16 固定连接，第一输送管 12和第二输送管 15通过管卡 13可旋转地连接， 管 卡 13的中心轴与转轴 17的中心轴重合，转轴 17的端部还固定有电机 14, 第一输送管 12和第二输送管 15分别位于第一臂架 11的第一侧和第二臂架 16的第一侧， 电机 14位于臂架（包括第一臂架 11和第二臂架 16 )的第二 侧。
工作过程中， 当需要第二臂架 16相对于第一臂架 11水平转动一定的 角度时， 使电机 14进入工作状态， 其输出轴带动转轴 17旋转， 从而带动 第二臂架 16水平转动。 整个臂架、 输送管、 驱动装置分开布置， 占用空间 极大， 不易在混凝土泵送设备上实现。
当混凝土泵送设备处于运输状态时， 为了运输的方便， 需要将混凝土 泵送设备的各节臂架折叠于泵车的车架上，由于机动车辆的严格限界要求， 整个臂架结构的紧凑性显得尤为重要。 图 1中所示由于输送管和电机位置 的设置，使得臂架在竖直方向上的宽度很大，造成臂架空间布置比较困难。
因此， 如何提高臂架装置结构的合理性， 减少所占用的空间， 就成为 本领域技术人员目前需要解决的技术问题。
发明内容
本发明的目的是提供一种用于混凝土泵送设备的臂架装置， 该臂架装 置的各部件的布置合理， 结构筒单、 紧凑， 节省了空间， 使得臂架装置能 够很方便地在混凝土泵送设备的臂架上应用。 本发明的另一目的是提供一 种包括上述臂架装置的混凝土泵送设备。
为解决上述技术问题， 本发明提供一种用于混凝土泵送设备的臂架装 置， 包括通过转轴连接的第一臂架和第二臂架， 所述第一臂架上固定有第 一输送管， 所述第二臂架上固定有第二输送管， 所述第一输送管和所述第 二输送管通过与所述转轴同轴的旋转连接轴连接， 还包括旋转动力部件和 传动部件， 所述旋转动力部件安装于所述第一臂架， 所述传动部件安装于 所述第一臂架的内部， 且所述传动部件的两端分别与所述旋转动力部件的 输出轴和所述第二臂架连接。
优选地， 所述第二臂架与所述转轴固定连接， 所述转轴上套装有从动 齿轮， 所述旋转动力部件通过传动部件带动所述从动齿轮旋转。
优选地， 还包括套装于所述转轴的转轴套， 所述转轴套与所述第二臂 架固定连接， 所述转轴套上套装有从动齿轮， 所述旋转动力部件通过传动 部件带动所述从动齿轮旋转。
优选地， 所述转轴开设有沿其轴向延伸的通孔， 通过所述旋转连接轴 连接的所述第一输送管和所述第二输送管穿过所述通孔， 且所述旋转连接 轴位于所述通孔内。
优选地， 所述旋转动力部件为电动机或马达， 所述传动部件包括减速 器和主动齿轮， 所述减速器的输入轴与所述电动机或马达的输出轴连接， 所述减速器的输出轴与所述主动齿轮连接， 所述主动齿轮与所述从动齿轮 啮合。
优选地， 所述旋转动力部件为油缸， 所述传动部件包括齿条， 所述油 缸的活塞杆与所述齿条连接， 所述齿条与所述从动齿轮啮合。
优选地， 所述从动齿轮的圆周角为 180度， 且固定于朝向所述第一臂 架的一侧。
为解决上述技术问题， 本发明还提供一种混凝土泵送设备， 包括车架 和上述任一项所述的臂架装置。
本发明所提供的用于混凝土泵送设备的臂架装置， 包括通过转轴连接 的第一臂架和第二臂架， 第一臂架上固定有第一输送管， 第二臂架上固定 有第二输送管， 第一输送管和第二输送管通过与转轴同轴的旋转连接轴连 接， 还包括旋转动力部件和传动部件， 所述旋转动力部件安装于所述第一 臂架， 传动部件安装于第一臂架的内部， 且传动部件与旋转动力部件的输 出轴和第二臂架连接。 这样， 当需要第二臂架相对于第一臂架旋转适当的 角度时， 只需要使旋转动力部件进入工作状态， 就可以通过传动部件将旋 转动力传递至第二臂架， 实现第二臂架的顺利旋转， 同时， 由于第一输送 管固定于第一臂架， 第二输送管固定于第二臂架， 并且转轴连接轴与转轴 同轴， 因此， 在臂架转动的同时就带动输送管的转动， 从而实现混凝土的 泵送位置的改变， 使混凝土能够顺利地到达目标位置； 进一步地， 由于传 动部件安装于第一臂架的腔体的内部， 使得臂架装置的各部件的布置更加 合理、安装更加紧凑，避免了传动部件占用过多的臂架横向方向上的空间， 方便了臂架装置在混凝土泵送设备上的安装， 扩大了臂架装置在混凝土泵 送设备的适用性。
在一种优选实施方式中， 本发明所提供的用于混凝土泵送设备的臂架 装置的转轴开设有沿其轴向延伸的通孔， 通过旋转连接轴连接的第一输送 管和第二输送管穿过通孔， 且旋转连接轴位于通孔内。 转轴中通孔的设置 使得第一输送管和第二输送管能够分别位于第一臂架和第二臂架的两侧， 进一步地减小了臂架装置的横向宽度， 使得第一输送管和第二输送管的布 置更加合理， 与第一臂架和第二臂架之间的距离更小， 臂架装置的各部件 更加紧凑， 进一步减小了占用的空间。
本发明所提供的混凝土泵送设备的有益效果与臂架装置的有益效果类 似， 在此不再赘述。
附图说明
图 1为现有技术中一种典型的可水平转动的臂架装置的结构示意图； 图 2为本发明一种具体实施方式所提供的臂架装置的结构示意图； 图 3为图 2所示的臂架装置的臂架部分的俯视示意图；
图 4为图 2所示的臂架装置的第二臂架处于不同位置的状态示意图； 图 5为图 2所示的臂架装置的剖示示意图；
图 6为图 5所示的 A部分的局部放大图。
具体实施方式
本发明的核心是提供一种用于混凝土泵送设备的臂架装置， 该臂架装 置的各部件的布置合理， 结构筒单、 紧凑， 节省了空间， 使得臂架装置能 够很方便地在混凝土泵送设备的臂架上应用。 本发明的另一核心是提供一 种包括上述臂架装置的混凝土泵送设备。
为了使本技术领域的人员更好地理解本发明方案， 下面结合附图和具 体实施方式对本发明作进一步的详细说明。
请参考图 2至图 6, 图 2为本发明一种具体实施方式所提供的臂架装 置的结构示意图； 图 3为图 2所示的臂架装置的臂架部分的俯视示意图； 图 4为图 2所示的臂架装置的第二臂架处于不同位置的状态示意图； 图 5 为图 2所示的臂架装置的剖示示意图； 图 6为图 5所示的 A部分的局部放 大图。
如图 2所示， 本发明所提供的用于混凝土泵送设备的臂架装置， 包括 第一臂架 21和第二臂架 26,第一臂架 21和第二臂架 26通过转轴 27连接， 第一臂架 21上固定有第一输送管 22 ,第二臂架 26上固定有第二输送管 25 , 第一输送管 22和第二输送管 25通过旋转连接轴 23连接， 旋转连接轴 23 的轴线与转轴 27的轴线相同， 第一臂架 21上还固定有旋转动力部件， 旋 转动力部件用于提供使第二臂架 26相对于第一臂架 21旋转的作用力， 旋 转动力部件通过设置于第一臂架 21内部的传动部件 29将作用力传递至第 二臂架 26; 另一方面， 旋转连接轴 23具体可以卡箍、 管卡等能够满足功 能要求的装置。
为了保证连接的可靠性， 提高连接刚度， 具有箱体结构的第二臂架 26 可以插装于第一臂架 21之中， 并在二者之间的空间内设置加强板 33 (示 于图 6中）， 然后在二者的重叠位置开设转轴孔， 将转轴 23插装于转轴孔 中。
混凝土泵送设备工作过程中， 当需要第二臂架 26相对于第一臂架 21 相对于第一臂架旋转适当的角度时，首先将旋转动力部件设定为工作状态， 旋转动力部件即产生转动作用力 ,并通过传动部件 29将转动作用力传递至 第二臂架 26, 带动第二臂架 26的旋转， 与此同时， 由于第一输送管 22固 定于第一臂架 21 , 第二输送管 25固定于第二臂架 26, 并且转轴连接轴 23 与转轴 27同轴， 因此， 在第二臂架 26转动的同时就可以带动第二输送管 25转动， 从而实现混凝土的泵送位置的改变， 使混凝土能够顺利地到达目 标位置， 达到调整目的。
特别地，本发明所提供的臂架装置，在完成基本的位置调整的基础上， 将传动部件 29安装于第一臂架 21的腔体的内部， 使得臂架装置的各部件 的设置更加紧凑， 布置更加合理， 从而避免了传动部件占用过多的臂架横 向方向上的空间， 方便了臂架装置在混凝土泵送设备上的安装， 扩大了臂 架装置在混凝土泵送设备的适用性。
具体地， 可以将第二臂架 26与转轴 27固定连接， 相应地， 第一臂架
21就需要能够相对于转轴 27旋转， 为了保证动力地顺利传递在转轴 27上 还设置有从动齿轮 31 ,旋转动力部件通过传动部件带动从动齿轮 31旋转。
此种情况下， 从动齿轮 31可以直接设置于转轴 27与传动部件建立连 接关系的位置， 转轴 27与第二臂架 26的转轴孔之间为过盈配合， 在安装 时， 首先将第二臂架 26插装于第一臂架 21 的箱体内， 并对第二臂架 26 加热， 然后将设置有从动齿轮 31的转轴 27插装于转轴孔中， 完成连接。
这样， 工作过程中， 旋转动力部件工作， 将旋转作用力通过传动部件 传递至从动齿轮 31 , 从动齿轮 31带动转轴 27旋转， 转轴 27进而带动第 二臂架 26相对于第一臂架 21旋转， 最终实现第二输送管 25位置的改变， 达到混凝土输送位置改变的目的。
在另一种具体实施方式中， 本发明所提供的用于混凝土泵送设备的臂 架装置还可以包括套装于转轴 27的转轴套 28,且转轴套 28与第二臂架 26 固定连接， 转轴套 28上套装从动齿轮 31 , 旋转动力部件通过传动部件带 动从动齿轮 31旋转。 在此情况下， 转轴 27与第一臂架 21固定连接。
安装时， 首先将从动齿轮 31固定于转轴套 28的适当位置， 以方便通 过传动部件进行旋转作用力的传递， 然后将转轴套 28固定于第二臂架 26, 再将第二臂架 26插装于第一臂架 21的内部，保证转轴套 28的通孔与转轴 孔对中， 最终将转轴 27插装于转轴孔中， 并将转轴 27与第一臂架固定即 可。
转轴套 28的设置方便了臂架装置的安装， 同时由于第二臂架 26与转 轴套 28的连接是在第一臂架 21箱体的外侧完成的，保证了连接的可靠性。 另一方面， 还可以通过改变从动齿轮 31的弧长， 调整第二臂架 26相对于 第一臂架 21的转动范围。
如图 3所示， 为了进一步方便从动齿轮 31、 转轴套 28以及第二臂架 的连接， 从动齿轮 31可以为整个齿轮的一半， 即从动齿轮的圆周角为 180 度， 且固定于朝向第一臂架 21的一侧。
这样， 就可以在第二臂架 26上开设通孔， 将转轴套 28穿过通孔， 并 通过焊接等方式将二者连接， 然后使从动齿轮 31穿过第二臂架 26的箱体 与转轴套 28 的外侧壁接触， 通过焊接方式连接， 或者直接嵌装于转轴套 28的外侧， 或者通过螺釘等和轴套 28相互固定， 最终将第二臂架 26装入 第一臂架 21的箱体的内部， 或者插入第一臂架 21的两伸出耳板之间。
由于第一臂架 21和第二臂架 26都具有一定的厚度， 在转动过程中， 当旋转到一定程度时， 必然会产生运动的干涉， 所以， 第二臂架 26的两个 极限位置是随着臂架箱体的相关尺寸和从动齿轮 31 圆周角大小变化而变 化的， 图 4中给出了当从动齿轮圆周角为 180度时从动臂架的极限转动示 意位置， 圆周角为 180度的从动齿轮 31完全可以满足旋转范围的要求，进 一步地，从动齿轮 31的体积减小，从而减少了所需要的材料，降低了成本。
具体地， 如图 5和图 6所示， 为了方便转轴 27固定于第一臂架 21 , 可以在转轴 27的一端设置凸台 271 , 在转轴 27的另一端开设定位孔， 当 转轴插装于转轴孔以后， 将定位板 272插装于定位孔中， 定位板 272、 凸 台 271和第一臂架 21相互配合就可以实现转轴 27的固定。
在另一种具体实施方式中，如 2所示，转轴 27还可以开设沿其轴向延 伸的通孔，通过旋转连接轴 23连接的第一输送管 22和第二输送管 25穿过 通孔， 且旋转连接轴 23位于通孔内。
转轴 27中通孔的设置使得第一输送管 22和第二输送管 25能够分别位 于第一臂架 21和第二臂架 26的两侧， 进一步地减小了臂架装置的横向宽 度， 使得第一输送管 22和第二输送管 25的布置更加合理， 输送管与臂架 之间的距离更小， 臂架装置的结构更加紧凑， 进一步减小了占用的空间。
如图中所示， 在一种具体实施方式中， 本发明所提供的旋转动力部件 可以为电动机 24, 与此相对应地， 传动部件 29可以包括减速器 291和主 动齿轮 292, 减速器 291的输入轴与电动机 24的输出轴连接， 减速器 291 的输出轴与主动齿轮 292连接，主动齿轮 292与从动齿轮 31啮合， 为了方 便主动齿轮 292的支撑， 在第一臂架 21的箱体内还可以设置支撑座 32。 当然， 在此结构下， 旋转动力部件并不限于上述电动机， 还可以为马达等 能够提供旋转动力的部件。
这样，工作过程中，电动机 24的旋转作用力经过减速器 291的减速后， 通过主动齿轮 292驱动从动齿轮 31转动， 从而带动转轴套 28旋转， 转轴 套 28带动与其固定连接的第二臂架 26, 以及固定于第二臂架 26的第二输 送管 25旋转适当的角度， 完成混凝土泵送位置的改变。
可以看出， 本发明所提供的上述结构能够很方便地实现旋转作用力的 传递， 且结构筒单， 连接方便。
当然， 本发明所提供的臂架装置的旋转动力部件并非限定为电动机， 也可以为油缸， 此种情况下， 传动部件可以包括齿条， 油缸的活塞杆与齿 条连接， 齿条与从动齿轮啮合。 油缸的伸缩运动带动齿条作直线运动， 并 通过啮合关系将直线运动变为从动齿轮的旋转运动， 进而实现第二臂架 26 和第二输送管 25的旋转。
除了上述臂架装置， 本发明还提供一种包括车架和以上所述的臂架装 置的混凝土泵送设备， 所述混凝土泵送设备其他各部分的结构请参考现有 技术， 本文不再赘述。
以上对本发明所提供的混凝土泵送设备及其臂架装置进行了详细介 实施例的说明只是用于帮助理解本发明的方法及其核心思想。 应当指出， 对于本技术领域的普通技术人员来说， 在不脱离本发明原理的前提下， 还 可以对本发明进行若干改进和修饰， 这些改进和修饰也落入本发明权利要 求的保护范围内。

Claims

权 利 要 求
1、 一种用于混凝土泵送设备的臂架装置， 包括通过转轴（ 27 )连接的 第一臂架（21)和第二臂架（26), 所述第一臂架（21)上固定有第一输送 管 （22), 所述第二臂架（26)上固定有第二输送管 （25), 所述第一输送 管 （ 22 )和所述第二输送管 （ 25 )通过与所述转轴 （ 27 ) 同轴的旋转连接 轴（23)连接， 其特征在于， 还包括旋转动力部件和传动部件（29), 所述 旋转动力部件安装于所述第一臂架（21 ), 所述传动部件（29)安装于所述 第一臂架（21) 的内部， 且所述传动部件（29)与所述旋转动力部件的输 出轴和所述第二臂架（26)连接。
2、根据权利要求 1所述的用于混凝土泵送设备的臂架装置，其特征在 于， 所述第二臂架（26)与所述转轴 （27) 固定连接， 所述转轴（27)上 设置有从动齿轮（ 31 ), 所述旋转动力部件通过传动部件（ 29 )带动所述从 动齿轮（31)旋转。
3、根据权利要求 1所述的用于混凝土泵送设备的臂架装置，其特征在 于， 还包括套装于所述转轴（ 27 )的转轴套（ 28 ), 所述转轴套（ 28 )与所 述第二臂架（26) 固定连接， 所述转轴套（28)上套装有从动齿轮（31), 所述旋转动力部件通过传动部件（29) 带动所述从动齿轮（31 )旋转。
4、根据权利要求 1至 3任一项所述的用于混凝土泵送设备的臂架装置， 其特征在于， 所述转轴（27)开设有沿其轴向延伸的通孔， 通过所述旋转 连接轴 （23)连接的所述第一输送管 （22)和所述第二输送管 （25) 穿过 所述通孔， 且所述旋转连接轴 （23)位于所述通孔内。
5、根据权利要求 4所述的用于混凝土泵送设备的臂架装置，其特征在 于， 所述旋转动力部件为电动机或马达（24), 所述传动部件（29)包括减 速器（291)和主动齿轮（292), 所述减速器（291) 的输入轴与所述电动 机或马达（24)的输出轴连接， 所述减速器（291 )的输出轴与所述主动齿 轮（292)连接， 所述主动齿轮（292) 与所述从动齿轮（31)啮合。
6、根据权利要求 4所述的用于混凝土泵送设备的臂架装置，其特征在 于， 所述旋转动力部件为油缸， 所述传动部件 （29) 包括齿条， 所述油缸 的活塞杆与所述齿条连接， 所述齿条与所述从动齿轮（31)啮合。
7、根据权利要求 4所述的用于混凝土泵送设备的臂架装置，其特征在 于， 所述从动齿轮（31 ) 的圆周角为 180度， 且固定于朝向所述第一臂架
( 21 ) 的一侧。
8、 一种混凝土泵送设备， 包括车架和臂架装置， 其特征在于， 所述臂 架装置为权利要求 1至 7任一项所述的臂架装置。
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