WO2011147236A1 - 用于工程设备的支撑装置和混凝土泵送设备 - Google Patents
用于工程设备的支撑装置和混凝土泵送设备 Download PDFInfo
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- WO2011147236A1 WO2011147236A1 PCT/CN2011/073083 CN2011073083W WO2011147236A1 WO 2011147236 A1 WO2011147236 A1 WO 2011147236A1 CN 2011073083 W CN2011073083 W CN 2011073083W WO 2011147236 A1 WO2011147236 A1 WO 2011147236A1
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- support
- cantilevers
- stage
- cantilever
- support device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
Definitions
- the present invention relates to the field of construction machinery, and in particular to a support device and a concrete pumping device for engineering work equipment. Background technique
- FIGS 1A to 1C show the support structure of a conventional conventional construction machinery (for example, for supporting concrete pump trucks).
- the support structure generally comprises a base 1, a front telescopic box type structure 2, a front swing box type structure 3, a front telescopic box type structure driving cylinder 4, a front swing box type structure driving cylinder 5, a rear swing box type structure 6, and a rear swing.
- the box structure drives the cylinder 7 and the like.
- the front swing box type structure 3 and the rear swing box type structure 6 respectively exert a fixed opening angles ⁇ and ⁇ under the action of the driving cylinder 4 and the driving cylinder 7, thereby forming a certain span.
- the support structure is as shown in Figures 1B and 1C.
- the drive cylinders in the traditional support structure usually adopt a single-stage cylinder, which makes the span of the support structure (the angle between the swing structures) fixed, and the support device cannot change the span according to the size of the construction site, resulting in failure to be effective in the narrow construction site.
- Use In particular, construction machinery support devices with large span settings are basically not available on narrow construction sites. Summary of the invention
- the supporting device comprises: a base; a plurality of supporting cantilevers respectively pivotally connected to the base; and a plurality of swing driving devices, each of the swing driving devices being connected to the base and one Correspondingly, between the support cantilevers, wherein one or more of the swing drive devices are multi-stage telescopic mechanisms.
- the supporting device for an engineering equipment according to the first aspect of the invention, wherein the pivot axes of the plurality of supporting cantilevers are disposed in parallel with each other.
- the supporting device for an engineering equipment wherein the plurality of supporting cantilevers comprise four supporting cantilevers, and the plurality of swinging driving devices comprise four swinging driving devices respectively corresponding to each of the supporting cantilevers;
- the four support cantilevers comprise two front support cantilevers and two rear support cantilevers, and wherein the four swing drive devices are multi-stage telescopic mechanisms, or four swing drive devices and two front support cantilevers or two The two swinging driving devices corresponding to the rear supporting cantilever are multi-stage telescopic mechanisms.
- the supporting device for an engineering equipment according to the first aspect of the invention, wherein the multi-stage telescopic mechanism is a multi-stage hydraulic cylinder.
- the supporting device for an engineering equipment wherein the multi-stage telescopic mechanism is a two-stage hydraulic cylinder, the two-stage hydraulic cylinder comprising: two cylinder cylinders, the two cylinder cylinders are respectively hinged at a base and a support cantilever; and a piston rod, the two ends of the piston rod are respectively sleeved in the two cylinders; or the two-stage hydraulic cylinder comprises: two piston rods, the two piston rods are respectively hinged a base and a support cantilever; and a cylinder, the two ends of the cylinder are respectively provided with two piston rods.
- the supporting device for an engineering equipment according to the first aspect of the invention, wherein one or more of the supporting cantilevers are telescopic support cantilevers.
- a supporting device for an engineering machine according to a first aspect of the present invention, wherein a single-stage hydraulic cylinder and/or a multi-stage hydraulic cylinder are disposed in the support cantilever.
- the supporting device for an engineering equipment according to the first aspect of the invention wherein the swing driving device comprises an electric push rod.
- a supporting device for an engineering equipment according to a first aspect of the present invention wherein an electric push rod is disposed in the supporting cantilever.
- a concrete pumping apparatus having a support apparatus according to the first aspect of the invention.
- the supporting device according to the invention has a plurality of setting working states, and the corresponding setting state can be selected according to different needs, and the supporting device has different working states by the swing driving device and forms a suitable span, so that the supporting device of the invention can The span is adjusted according to the actual situation of the construction site, so that the use is more flexible and adaptable.
- FIG. 1A is a schematic structural view of a support device in the prior art
- FIG. 1B and 1C show two states of use of the support device of Fig. 1A;
- FIG. 2A is a schematic view showing the structure of a supporting device according to an embodiment of the present invention
- FIGS. 2B to 2E are views showing various operating states of the supporting device of FIG. 2A;
- FIG. 3A is a schematic structural view of a supporting device according to still another embodiment of the present invention.
- FIGS. 3B to 31 illustrate various operating states of the supporting device of FIG. 2A;
- Figure 4 shows a block diagram of one embodiment of a multi-stage telescoping mechanism in accordance with the present invention. detailed description
- a supporting device for an engineering equipment mainly comprises: a base, a plurality of supporting cantilevers, and a plurality of swing driving devices.
- a plurality of support cantilevers are pivotally coupled to the base, respectively, each of the plurality of swing drives being coupled between the base and a respective support cantilever, each support cantilever being driven by a respective swing drive Rotate around the base.
- the support boom can be rotated a specific angle around the base.
- one or more of the plurality of oscillating drives of the support device are multi-stage telescopic mechanisms.
- the multi-stage telescopic oscillating drive device has a plurality of set operating states, and corresponding to the plurality of set operating states of the multi-stage telescopic oscillating drive device, the corresponding support cantilever can swing at different angles with respect to the initial state.
- the prior art support cantilever structure generally has only a retracted position and an open position.
- the present invention can realize that the support cantilever has a plurality of different rotation angles by configuring the swing drive device into a multi-stage telescopic mechanism, that is, the support cantilever has a plurality of open positions (support positions), thereby adjusting the adjacent support cantilever The angle between them (span) makes it possible to realize various forms of support structure to better adapt to the needs of different construction occasions, and the applicability is higher.
- the multi-stage telescopic mechanism has a plurality of setting working states, and the angle between the supporting cantilever is adjusted by switching between different setting working states, so that the angle adjustment between the supporting cantilever is more accurate and safe, and avoiding Risks due to manual manual adjustment (for example, due to improper angle adjustment, the center of gravity of the concrete pump truck exceeds the range of polygons formed by the support cantilever, thereby causing rollover).
- the multi-stage telescoping structure of the present invention may be a two-stage, three-stage or even more stage telescopic mechanism, that is, the support cantilever may have two, three or even more different set working states. In the following specific embodiments, a simple two-stage telescopic mechanism will be described as an example.
- the support device of the present invention utilizes a multi-stage telescoping mechanism to vary the span between the support cantilevers, i.e., to change the angular extent of the support cantilever.
- the pivot axes of the plurality of support cantilevers are arranged in parallel, for example in a direction perpendicular to the horizontal plane. With such an arrangement, the plurality of support cantilevers swing generally in the horizontal plane.
- the supporting cantilever in the supporting device is telescopic, that is, the extending range of the supporting cantilever can be adjusted according to actual needs. Therefore, when the size or weight of the equipment to be supported is large, the extension length of the support cantilever can be appropriately extended to meet the operation requirements.
- FIG. 2A to 2E show an embodiment of a supporting device according to the present invention
- Figs. 3A to 31 show another embodiment of a supporting device according to the present invention.
- the support devices in both embodiments illustrated include: four support cantilevers 21, 22, 23, 24, namely a first support cantilever 21, a second support cantilever 22, a third support cantilever 23 and a fourth support cantilever 24
- four swing driving devices 31, 32, 33, 34 corresponding to each of the supporting cantilevers that is, the first swing driving device 31, the second swing driving device 32, the third swing driving device 33, and the fourth swing driving device 34.
- one end of each of the swing driving devices is hinged (e.g., through a pin) to a corresponding support cantilever, and the other end is hinged to the base 10.
- the four support cantilevers 21, 22, 23, 24 include two front support cantilevers 21, 22 and two rear support cantilevers 23, 24.
- the two swing driving devices of the four swing driving devices corresponding to the two front support booms and/or the two rear support booms may be multi-stage telescopic mechanisms.
- two of the four support cantilevers 21, 22, 23, 24 are telescopic support cantilevers, that is, the first support cantilever 21 at the front of the base 10 in the figure.
- the second support cantilever 22 is a telescopic support cantilever.
- the third support cantilever 23 and the fourth support cantilever 24 at the rear of the base 10 are telescopic support cantilevers, or the four support cantilevers 21, 22, 23, 24 can be configured as telescopic support cantilevers.
- one or a plurality of support cantilevers of the four support cantilevers may be selectively configured to be telescopic.
- more than four or less than four support cantilevers may be provided around the base 10 in other embodiments, but preferably, an even number is provided.
- the cantilever is supported to provide a more stable support for the concrete pump truck.
- the third swinging drive 33 and the fourth swinging drive 34 of the third support cantilever 23 and the fourth support cantilever 24 are multi-stage telescopic mechanisms.
- the third swing driving device 33 and the fourth swing driving device 34 are two-stage telescopic mechanisms, that is, the third swing driving device 33 and the fourth swing driving device 34 each have two strokes, that is, have two settings.
- the first swing driving device 31 and the second swing driving device 32 which respectively correspond to the first support cantilever 21 and the second support cantilever 22 at the front of the base 10, may be provided as a multi-stage telescopic mechanism.
- FIGS. 2A and 2C show that the third support cantilever 23 and the fourth support cantilever 24 are supported in the first open position (when the third swing drive device 33 and the fourth swing drive device 34 are in the first set operating state).
- the opening angles of the third support cantilever 23 and the fourth support cantilever 24 are both ⁇ 1.
- the first support cantilever 21 and the second support cantilever 22 are in an extended state
- the first support cantilever 21 and the second support cantilever 22 are in a contracted state.
- FIGS. 2D and 2B show the third support cantilever 23 and the fourth support cantilever 24 in the second open position (when the third swing drive 33 and the fourth swing drive 34 are in the second set operating state)
- the configuration of the support device, the opening angle of the third support cantilever 23 and the fourth support cantilever 24 are both ⁇ 2.
- the first support cantilever 21 and the second support cantilever 22 are in an extended state
- the first support cantilever 21 and the second support cantilever 22 are in a contracted state.
- the opening angles of the first support cantilever 21 and the second support cantilever 22 in Figs. 2A to 2B are both ⁇ and there is no change.
- the four oscillating driving devices 31, 32, 33, 34 are all multi-stage telescopic mechanisms, that is, the four supporting cantilevers 21, 22, 23, 24 have multiple openings. position.
- the first support cantilever 21 and the second support cantilever 22 each have two different opening angles a1, ⁇ 2, and the third support cantilever 23 and the fourth support cantilever 24 each have two different opening angles ⁇ 1. , ⁇ 2, thereby constructing a variety of support device configurations, such as the configuration shown in Figures 3A through 31.
- the multi-stage telescopic mechanism of the oscillating drive can be constructed as a multi-stage hydraulic cylinder. In response to the stroke of the multi-stage hydraulic cylinder, the multi-stage hydraulic cylinder can be provided with a plurality of set operating states to rotate the support boom to a plurality of corresponding opening angles.
- the multi-stage telescoping mechanism is constructed as a two-stage hydraulic cylinder.
- the structure of the third swing driving device configured as a two-stage hydraulic cylinder is taken as an example.
- the third swing driving device 33 configured as a two-stage hydraulic cylinder specifically includes two cylinders 33a. And 33b and the piston rod 33c, the two cylinders 33a, 33b are respectively hinged on the base 10 and the first support cantilever 21, and the two ends of the piston rod 33c are respectively sleeved in the two cylinders 33a, 33b.
- the piston rod 33c can slide in the cylinder barrels 33a, 33b, thereby obtaining two strokes, that is, the corresponding first stroke when the piston rod 33c slides out of the cylinder barrel 33a, and further from the cylinder barrel 33b The corresponding second stroke when sliding out.
- the first stroke and the second stroke respectively correspond to two set operating states such that the first support boom 21 has two different opening angles.
- a two-stage hydraulic cylinder can be constructed such that two cylinder rods are respectively provided with two piston rods at both ends, which can also achieve two strokes.
- a structure in which a plurality of cylinder cylinders are sequentially sleeved together may be employed, so that each cylinder cylinder may be sequentially slid out to form a plurality of Different itineraries.
- the plurality of different strokes may respectively correspond to a plurality of set operating states of the telescoping mechanism such that the support cantilever has a corresponding plurality of different opening angles.
- the telescoping support cantilever can include a plurality of arm segments.
- the first support cantilever 21 and the second support cantilever 22 each have a first arm section 21a, 22a and a second arm section 21b, 22b and, telescopic support
- a hydraulic cylinder such as the first hydraulic cylinder 51 and the second hydraulic cylinder 52 shown in FIGS. 2B and 3B, is disposed in the cantilever to achieve a telescopic movement of the support cantilever, the specific implementation of which is known to those skilled in the art. I will not go into details.
- the hydraulic cylinders disposed in the telescopic support cantilever can be single-stage hydraulic cylinders and/or multi-stage hydraulic cylinders.
- the hydraulic cylinders in each of the telescopic support cantilevers may be single-stage hydraulic cylinders, or both are multi-stage hydraulic cylinders; alternatively, the hydraulic cylinders in a part of the telescopic support cantilever may be single-stage hydraulic cylinders, and
- the hydraulic cylinder in a part of the telescopic support cantilever is a multi-stage hydraulic cylinder.
- the single-stage hydraulic cylinder generally only realizes one-stage telescopic movement
- the multi-stage hydraulic cylinder can realize multi-stage telescopic movement of the multi-arm joint.
- the swing drive of the support device of the present invention can include an electric push rod to open the support boom under the action of the electric push rod.
- hydraulic cylinders placed in the telescopic support cantilever can also be replaced with electric push rods. The arrangement and use of the electric push rods are known to those skilled in the art and will not be described in detail herein.
- the concrete pumping apparatus described above may be a concrete pump truck.
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Description
用于工程设备的支撑装置和混凝土泵送设备 技术领域
本发明涉及工程机械领域, 具体涉及用于工程作业设备的支撑装置和 混凝土泵送设备。 背景技术
大型机械设备在进行工程作业时, 通常需要特定的支撑装置来支撑, 图 1A至图 1C示出了现有的一种常用工程机械设备的支撑结构 (例如用于 支撑混凝土泵车)。 该支撑结构一般由基座 1、 前伸缩箱型结构 2、 前摆动 箱型结构 3、 前伸缩箱型结构驱动油缸 4、 前摆动箱型结构驱动油缸 5、 后 摆动箱型结构 6、 后摆动箱型结构驱动油缸 7等组成。 当支撑结构展开时, 前摆动箱型结构 3和后摆动箱型结构 6分别在驱动油缸 4和驱动油缸 7的 作用下,摆出固定的打开角度 αΐ和 βΐ ,由此形成具有一定跨距的支撑结构, 如图 1B和图 1C中所示。 传统支撑结构中的驱动油缸通常采用单级油缸, 这使得支撑结构的跨距 (摆动结构之间的角度) 固定, 支撑装置不能根据 施工场地的大小来改变跨距, 导致在狭窄施工场地无法有效地使用。 尤其 是那些跨距设定较大的工程机械支撑装置基本上无法在狭窄的施工场地使 用。 发明内容
本发明的目的是提供一种结构改进的用于工程设备的支撑装置, 该支 撑装置具有可变的摆动角度的支撑悬臂, 以使支撑装置具有更加灵活的操 作性和适应性。
针对上述技术问题, 根据本发明的一个方面提供了一种用于工程设备
的支撑装置, 包括: 基座; 多个支撑悬臂, 该多个支撑悬臂分别可枢转地 连接到基座上; 以及多个摆动驱动装置, 每个所述摆动驱动装置连接在基 座和一个相应的支撑悬臂之间, 其中, 摆动驱动装置中的一个或多个为多 级伸缩机构。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 多个支撑悬臂的枢转轴线彼此平行设置。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 多个支撑悬臂包括四个支撑悬臂, 多个摆动驱动装置包括分别与每个支撑 悬臂对应的四个摆动驱动装置; 其中, 四个支撑悬臂中包括两个前支撑悬 臂和两个后支撑悬臂, 并且其中, 四个摆动驱动装置均为多级伸缩机构, 或四个摆动驱动装置中与两个前支撑悬臂或两个后支撑悬臂相对应的两个 摆动驱动装置为多级伸缩机构。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 多级伸缩机构为多级液压缸。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 多级伸缩机构为两级液压缸, 该两级液压缸包括: 两个缸筒, 该两个缸筒 分别铰接在基座和一个支撑悬臂上; 和一个活塞杆, 该活塞杆的两端分别 套设在两个缸筒中; 或者所述两级液压缸包括: 两个活塞杆, 该两根活塞 杆分别铰接在基座和一个支撑悬臂上; 和一个缸筒, 该缸筒的两端分别套 设有两个活塞杆。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 支撑悬臂中的一个或多个为可伸缩支撑悬臂。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 支撑悬臂中设置有单级液压缸和 /或多级液压缸。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 摆动驱动装置包括电推杆。
进一步地, 根据本发明第一方面的用于工程设备的支撑装置, 其中, 支撑悬臂中设置有电推杆。
根据本发明的第二方面提供了一种混凝土泵送设备, 该混凝土泵送设 备有根据本发明第一方面的支撑装置。
本发明具有以下技术效果:
根据本发明的支撑装置具有多种设定工作状态, 可以根据不同需要选 用相应的设定状态, 支撑装置通过摆动驱动装置具有不同的工作状态并形 成合适的跨距, 使得本发明的支撑装置能够根据施工场地的实际情况来调 整跨距, 从而使用更加灵活, 适应性强。
应该理解, 以上的一般性描述和以下的详细描述都是列举和说明性质 的, 目的是为了对要求保护的本发明提供进一步的说明。 附图说明
附图构成本说明书的一部分, 用于帮助进一步理解本发明。 这些附图 图解了本发明的一些实施例, 并与说明书一起用来说明本发明的原理。 在 附图中相同的部件用相同的标号表示。 附图中:
图 1A示出了现有技术中的支撑装置的结构示意图;
图 1B和图 1C示出了图 1A中的支撑装置的两种使用状态;
图 2A示出了根据本发明一个实施例的支撑装置的结构示意图; 图 2B至图 2E示出了图 2A中的支撑装置的多种工作状态;
图 3A示出了根据本发明又一个实施例的支撑装置的结构示意图;以及 图 3B至图 31示出了图 2A中的支撑装置的多种工作状态;
图 4示出了根据本发明的多级伸缩机构的一个实施例的结构图。 具体实施方式
首先对根据本发明的支撑装置的一般性实施方式进行描述。
根据本发明的用于工程设备的支撑装置, 其主要包括: 基座、 多个支 撑悬臂以及多个摆动驱动装置。 多个支撑悬臂分别可枢转地连接到基座上, 多个摆动驱动装置中的每个连接在基座和一个相应的支撑悬臂之间, 每个 支撑悬臂能够在相应的摆动驱动装置的驱动下围绕基座转动。 根据摆动驱 动装置的设定, 支撑悬臂可以围绕基座转动特定的角度。 特别地, 根据本 发明, 支撑装置的多个摆动驱动装置中的一个或多个为多级伸缩机构。 多 级伸缩的摆动驱动装置具有多种设定工作状态, 而对应于多级伸缩摆动驱 动装置的该多种设定工作状态, 相应的支撑悬臂可以相对于初始状态摆动 不同的角度。
如图 1A至图 1C所示, 现有技术中的支撑悬臂结构一般只具有收回位 置和一个打开位置。 而本发明通过将摆动驱动装置构造成多级伸缩机构, 可以使支撑悬臂具有多个不同的转动角度, 也就是使支撑悬臂具有多个打 开位置 (支撑位置), 由此来调整相邻支撑悬臂之间的夹角 (跨距), 从而 实现多种形式的支撑结构, 以更加适应不同施工场合的需要, 适用性更高。 并且, 多级伸缩机构具有多个设定工作状态, 通过在不同的设定工作状态 之间转换来调整支撑悬臂之间的夹角, 使得对支撑悬臂之间的夹角调整更 加准确安全, 避免由于人工手动调节而引发的风险 (例如, 由于角度调整 不当, 使得混凝土泵车的重心超出支撑悬臂所形成的多边形的范围, 由此 造成翻车)。 应该理解的是, 本发明的多级伸缩结构可以为两级、 三级甚至 更多级的伸缩机构, 也就是支撑悬臂可以具有两个、 三个甚至更多个不同 的设定工作状态。 下面的具体实施例中将以简单的两级伸缩机构为例进行 说明。
本发明的支撑装置利用多级伸缩机构来改变支撑悬臂之间的跨距, 也 就是改变支撑悬臂的角度范围。 在优选的实施方式中, 多个支撑悬臂的枢 转轴线平行设置, 例如沿垂直于水平平面的方向设置。 在这样设置的情况 下, 多个支撑悬臂大体上在该水平平面中摆动。
同时, 优选地, 本支撑装置中的支撑悬臂是可伸缩的, 也就是支撑悬 臂的延伸范围可以根据实际需要调节。 因此, 当需要支撑的设备尺寸或重 量较大时, 可以适当延长支撑悬臂的延伸长度, 以满足操作需要。
下面将结合具体实例并参照相应附图对本发明的实施方式进行说明。 图 2A至图 2E示出了根据本发明的支撑装置的一个实施例, 图 3A至 图 31示出了根据本发明的支撑装置的另一个实施例。 在图示两个实施例中 的支撑装置均包括: 四个支撑悬臂 21、 22、 23、 24, 即第一支撑悬臂 21、 第二支撑悬臂 22、 第三支撑悬臂 23和第四支撑悬臂 24; 以及分别与每个 支撑悬臂对应的四个摆动驱动装置 31、 32、 33、 34, 即第一摆动驱动装置 31、 第二摆动驱动装置 32、 第三摆动驱动装置 33和第四摆动驱动装置 34。 在本实施方式中, 每个摆动驱动装置的一端铰接 (例如通过销轴) 至相应 的支撑悬臂, 另一端则铰接至基座 10。
其中, 所述四个支撑悬臂 21、 22、 23、 24中包括两个前支撑悬臂 21、 22和两个后支撑悬臂 23、 24。 优选地, 可以使所述四个摆动驱动装置中与 所述两个前支撑悬臂和 /或与所述两个后支撑悬臂相对应的两个摆动驱动装 置为多级伸缩机构。
具体地, 在上面的图 2所示的实施例中, 四个支撑悬臂 21、 22、 23、 24中的两个为可伸缩支撑悬臂, 即图中基座 10前部的第一支撑悬臂 21和 第二支撑悬臂 22为可伸缩支撑悬臂。 在其他的实施例中, 基座 10后部的 第三支撑悬臂 23和第四支撑悬臂 24为可伸缩支撑悬臂, 或者四个支撑悬 臂 21、 22、 23、 24都可以设置成可伸缩支撑悬臂, 或者也可以选择性地将 四个支撑悬臂中的一个或某几个支撑悬臂设置成可伸缩的。 此外, 除了图 中所示的四个支撑悬臂的实施例以外, 其他的实施例中还可以在基座 10周 围设置多于四个或少于四个的支撑悬臂, 但优选的, 设置偶数个支撑悬臂, 以使得混凝土泵车获得更加稳定的支撑。
进一步,在图 2A至图 2E中示出的实施例中,分别对应于基座 10后部
的第三支撑悬臂 23和第四支撑悬臂 24的第三摆动驱动装置 33和第四摆动 驱动装置 34为多级伸缩机构。 具体地, 第三摆动驱动装置 33和第四摆动 驱动装置 34为两级伸缩机构, 也就是, 第三摆动驱动装置 33和第四摆动 驱动装置 34各自具有两个行程, 即具有两个设定工作状态, 从而可以使相 应的第三支撑悬臂 23和第四支撑悬臂 24具有两个不同的打开角度(即 β1、 β2), 也就使得第三支撑悬臂 23和第四支撑悬臂 24具有两个不同的打开位 置。在其他实施例中, 也可以将分别对应于基座 10前部的第一支撑悬臂 21 和第二支撑悬臂 22的第一摆动驱动装置 31和第二摆动驱动装置 32设置为 多级伸缩机构。
图 2Β和 2C中示出了第三支撑悬臂 23和第四支撑悬臂 24在第一打开 位置 (此时第三摆动驱动装置 33和第四摆动驱动装置 34为第一设定工作 状态) 时支撑装置的构型, 第三支撑悬臂 23和第四支撑悬臂 24的打开角 度均为 β1。 其中, 图 2Β中第一支撑悬臂 21和第二支撑悬臂 22处于延伸 状态, 图 2C中第一支撑悬臂 21和第二支撑悬臂 22处于收缩状态。 图 2D 和图 2Ε中示出了第三支撑悬臂 23和第四支撑悬臂 24在第二打开位置(此 时第三摆动驱动装置 33和第四摆动驱动装置 34为第二设定工作状态) 时 支撑装置的构型,第三支撑悬臂 23和第四支撑悬臂 24的打开角度均为 β2。 其中, 图 2D中第一支撑悬臂 21和第二支撑悬臂 22处于延伸状态, 图 2Ε 中第一支撑悬臂 21和第二支撑悬臂 22处于收缩状态。 图 2Β至图 2Ε中第 一支撑悬臂 21和第二支撑悬臂 22的打开角度均为 αΐ , 没有变化。
图 3Α至图 31中示出的实施例中, 四个摆动驱动装置 31、 32、 33、 34 均为多级伸缩机构, 也就是四个支撑悬臂 21、 22、 23、 24都具有多个打开 位置。 如图中所示的, 第一支撑悬臂 21和第二支撑悬臂 22均具有两个不 同的打开角度 al、 ο2, 第三支撑悬臂 23和第四支撑悬臂 24均具有两个不 同的打开角度 β1、 β2, 从而构造出多种支撑装置构型, 例如图 3Α至图 31 中所示的构型。
具体地, 摆动驱动装置的多级伸缩机构可以构造为多级液压缸。 响应 于多级液压缸的行程, 可以使多级液压缸具有多个设定工作状态, 从而使 支撑悬臂转动到多个相应的打开角度。
更具体地, 在图示的实施例中, 提供了一种将多级伸缩机构构造为双 级液压缸的实施方式。 以构造成双级液压缸的第三摆动驱动装置为例来说 明其结构, 如图 4 中的放大图所示, 构造为双级液压缸的第三摆动驱动装 置 33具体包括两个缸筒 33a、 33b以及活塞杆 33c, 两个缸筒 33a、 33b分 别铰接在基座 10和第一支撑悬臂 21上, 活塞杆 33c的两端分别套设在上 述的两个缸筒 33a、 33b中。 在上述结构中, 活塞杆 33c可以在缸筒 33a、 33b中滑动, 由此获得两个行程, 即活塞杆 33c从缸筒 33a中滑出时对应的 第一行程, 以及进而从缸筒 33b 中滑出时对应的第二行程。 所述第一行程 和第二行程分别对应两个设定的工作状态, 使得第一支撑悬臂 21具有两个 不同的打开角度。
此外, 根据本发明的双级液压缸还可以采用其他的替代方式。 例如, 双级液压缸可以构造为一个缸筒的两端分别套有两个活塞杆的结构, 其同 样可以实现两个行程。 可选择地, 无论是构造成双级还是更多级液压缸的 伸缩机构, 都可以采用多个缸筒依次套设在一起的结构, 从而随着每个缸 筒依次滑出, 可以形成多个不同的行程。 该多个不同的行程可以分别对应 于所述伸缩机构的多个设定工作状态, 以使支撑悬臂具有相应的多个不同 的打开角度。
在支撑悬臂为可伸缩支撑悬臂的情况下, 可伸缩的支撑悬臂可以包括 多个臂节。在图中的实施例中, 如图 2B和 3B所示, 第一支撑悬臂 21和第 二支撑悬臂 22各自具有第一臂节 21a、 22a和第二臂节 21b、 22b 并且, 可伸缩的支撑悬臂中设置有液压缸,例如图 2B和 3B所示的第一液压缸 51 和第二液压缸 52, 以便实现支撑悬臂的伸缩运动, 其具体实现方式是本领 域技术人员已知的, 在此就不再详述了。 进一步地, 根据不同的应用需求,
设置在可伸缩支撑悬臂中的液压缸可以为单级液压缸和 /或多级液压缸。 具 体地, 每个可伸缩支撑悬臂中的液压缸可以均为单级液压缸, 或者均为多 级液压缸; 可选择地, 一部分可伸缩支撑悬臂中的液压缸可以为单级液压 缸, 另一部分可伸缩支撑悬臂中的液压缸为多级液压缸。 其中, 单级液压 缸一般仅实现一级伸缩运动, 而使用多级液压缸能够实现多臂节的多级伸 缩运动。
此外, 在可替换的实施方式中, 本发明的支撑装置的摆动驱动装置可 以包括电推杆, 以便使支撑悬臂在电推杆动作下打开。 同样的, 设置在可 伸缩支撑悬臂中的液压缸也可以用电推杆替代。 电推杆的设置和使用是本 领域技术人员已知的, 在此不做详细说明。
此外, 根据本发明的原理, 还提供了一种混凝土泵送设备, 该混凝土 泵送设备装备有根据本发明的支撑装置。 具体地, 上述混凝土泵送设备可 以为混凝土泵车。
以上仅为本发明的优选实施方式而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神 和原则之内所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保 护范围之内。
Claims
1. 一种用于工程设备的支撑装置, 该支撑装置包括:
基座 (10);
多个支撑悬臂, 该多个支撑悬臂分别可枢转地连接到所述基座 (10) ; 以及
多个摆动驱动装置,每个所述摆动驱动装置连接在所述基座和一个相应 的所述支撑悬臂之间,
其特征在于, 所述摆动驱动装置中的一个或多个为多级伸缩机构。
2.根据权利要求 1所述的用于工程设备的支撑装置, 其中, 所述多个支 撑悬臂的枢转轴线彼此平行设置。
3.根据权利要求 2所述的用于工程设备的支撑装置, 其中:
所述多个支撑悬臂包括四个支撑悬臂 (21、 22、 23、 24), 所述多个摆 动驱动装置包括分别与每个支撑悬臂对应的四个摆动驱动装置(31、 32、 33、 34);
其中, 所述四个支撑悬臂中包括两个前支撑悬臂和两个后支撑悬臂, 其中, 所述四个摆动驱动装置均为多级伸缩机构, 或者所述四个摆动驱 动装置中与所述两个前支撑悬臂或所述两个后支撑悬臂相对应的两个摆动 驱动装置为多级伸缩机构。
4. 根据权利要求 3所述的用于工程设备的支撑装置,其中,所述多级伸 缩机构为多级液压缸。
5.根据权利要求 4所述的用于工程设备的支撑装置, 其中, 所述多级伸 缩机构为两级液压缸, 该两级液压缸包括: 两个缸筒, 该两个缸筒分别铰接 在所述基座和一个所述支撑悬臂上; 和一个活塞杆, 该活塞杆的两端分别套 设在所述两个缸筒中;
或者所述两级液压缸包括: 两个活塞杆, 该两根活塞杆分别铰接在所述 基座和一个所述支撑悬臂上; 和一个缸筒, 该缸筒的两端分别套设有所述两 个活塞杆。
6.根据权利要求 1-5中任一项所述的用于工程设备的支撑装置, 其中, 所述支撑悬臂中的一个或多个为可伸缩支撑悬臂。
7.根据权利要求 6所述的用于工程设备的支撑装置, 其中, 所述支撑悬 臂中设置有单级液压缸和 /或多级液压缸。
8.根据权利要求 1所述的用于工程设备的支撑装置, 其中, 所述摆动驱 动装置包括电推杆。
9.根据权利要求 2所述的用于工程设备的支撑装置, 其中, 所述支撑悬 臂中设置有电推杆。
10. 一种混凝土泵送设备, 其特征在于, 该混凝土泵送设备装备有根据 前述权利要求中任一项所述的支撑装置。
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CN102493654B (zh) * | 2011-12-21 | 2014-05-21 | 三一重工股份有限公司 | 一种工程机械 |
CN102602829B (zh) * | 2012-03-29 | 2014-02-19 | 中联重科股份有限公司 | 工程机械及其支腿定位支撑装置 |
CN105421786B (zh) * | 2015-12-24 | 2017-05-17 | 山东送变电工程公司 | 大型钢模板防火墙混凝土泵送辅助设备 |
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