WO2012171402A1 - 一种臂架结构及混凝土泵车 - Google Patents

一种臂架结构及混凝土泵车 Download PDF

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Publication number
WO2012171402A1
WO2012171402A1 PCT/CN2012/073826 CN2012073826W WO2012171402A1 WO 2012171402 A1 WO2012171402 A1 WO 2012171402A1 CN 2012073826 W CN2012073826 W CN 2012073826W WO 2012171402 A1 WO2012171402 A1 WO 2012171402A1
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WO
WIPO (PCT)
Prior art keywords
boom
section
arm
unit
booms
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Application number
PCT/CN2012/073826
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English (en)
French (fr)
Inventor
王尤毅
陈先
赵玉坤
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
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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 WO2012171402A1 publication Critical patent/WO2012171402A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/54Cranes 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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04Devices for both conveying and distributing
    • E04G21/0418Devices for both conveying and distributing with distribution hose
    • E04G21/0436Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04Devices for both conveying and distributing
    • E04G21/0418Devices for both conveying and distributing with distribution hose
    • E04G21/0445Devices for both conveying and distributing with distribution hose with booms

Definitions

  • a boom structure and a concrete pump truck The application is submitted to the Chinese Patent Office on June 13, 2011, the application number is 201110157564.2, and the invention title is "a boom structure and a concrete pump truck.” The entire contents of which are incorporated herein by reference.
  • the present invention relates to the technical field of concrete pump trucks, and more particularly to a boom structure that can be clothed in a narrow space.
  • the invention also relates to a concrete pump truck having the above-described boom structure.
  • the concrete pump truck is a mechanical device that continuously transports concrete along the pipeline by pressure, and is mainly composed of a pump body and a conveying pipe.
  • the concrete pump truck is transported to the designated position through the conveying pipe fixed on the structure of the boom, and as the conveying position changes, the boom structure needs to drive the conveying pipe to realize the unfolding, gathering and rotating actions.
  • the boom structure of a concrete pump truck generally includes a multi-section boom, and the boom brackets can be folded between each other.
  • the boom of a concrete pump truck must not be so high that its vehicle height is higher than a certain value. Therefore, the vertical space that can be arranged when the boom is folded is very limited, thus limiting the number of sections of the boom. Affected by this, on the one hand, it is not conducive to the development of an ultra-long boom with a large number of knots. On the other hand, it is not conducive to reducing the length of the single-section boom when the total length of the boom is constant, so that the minimum space required for the boom structure to be unfolded ( That is, the minimum deployment height H of the boom structure, as shown in Fig. 1) is large, and it is difficult for the concrete pump truck to deploy the boom in a small space.
  • a first object of the present invention is to provide a boom structure which has a small gap when folded, and which can arrange more booms in a limited vertical space.
  • a second object of the present invention is to provide a concrete pump truck having the above-described boom structure.
  • the present invention provides a boom structure comprising not less than one boom, the adjacent ends of adjacent booms are hinged, and the ends of the first booms are hinged to the turntable,
  • a telescopic cylinder for unfolding or gathering the boom is disposed between the adjacent booms.
  • the two ends of the telescopic cylinder are respectively hinged with the front boom and the rear boom.
  • the cylinder is Included in the front boom and/or in the rear boom.
  • the front arm and the rear arm are respectively provided with a groove, and when the telescopic cylinder is in a contracted state, the two ends of the cylinder are respectively received in the front arm And in the groove of the rear section of the boom.
  • the boom structure comprises not less than one M-arm unit or R-arm unit
  • the M-arm unit includes a plurality of three-section sequentially articulated booms
  • the M-arm When the unit is in the collapsed state, one of the booms is located between the adjacent front one boom and the adjacent rear one boom, and the R-shaped boom unit includes a number of three hinged hinged booms.
  • the R-arm unit When the R-arm unit is in the collapsed state, one of the booms is located between the adjacent front two booms.
  • the boom structure comprises at least a six-section boom, the first-section boom, the second-section boom, and the third-section boom form the M-arm unit, the third-section boom, and the fourth-section arm
  • the frame, the fifth section of the boom form the M-shaped boom unit, and the fourth section of the boom, the fifth section of the boom, and the sixth section of the boom form the R-shaped boom unit.
  • the boom structure comprises at least a six-section boom, the first-section boom, the second-section boom, and the third-section boom form the M-arm unit, the third-section boom, and the fourth-section arm
  • the frame, the fifth section of the boom form the R-shaped boom unit, and the fourth section of the boom, the fifth section of the boom, and the sixth section of the boom form the M-shaped boom unit.
  • the boom structure comprises at least a six-section boom, the first-section boom, the second-section boom, and the third-section boom form the M-arm unit, the third-section boom, and the fourth-section arm
  • the rack and the fifth boom form the R-shaped boom unit
  • the fourth-section boom, the fifth-section boom, and the sixth-section boom form the R-shaped boom unit.
  • the boom structure comprises at least a six-section boom, the first-section boom, the second-section boom, and the third-section boom form the R-arm unit, the third-section boom, and the fourth-section arm
  • the frame, the fifth section of the boom form the M-shaped boom unit, and the fourth section of the boom, the fifth section of the boom, and the sixth section of the boom form the R-shaped boom unit.
  • the boom structure comprises at least a six-section boom, the first-section boom, the second-section boom, and the third-section boom form the R-arm unit, the third-section boom, and the fourth-section arm
  • the rack and the fifth boom form the R-shaped boom unit
  • the fourth-section boom, the fifth-section boom, and the sixth-section boom form the R-shaped boom unit.
  • the boom structure comprises at least a six-section boom, the first-section boom, the second-section boom, and the third-section boom form the R-arm unit, the third-section boom, and the fourth-section arm Rack, fifth arm
  • the frame forms the R-shaped boom unit, and the fourth-section boom, the fifth-section boom, and the sixth-section boom form the M-arm unit.
  • the boom structure provided by the invention comprises a plurality of booms, the adjacent ends of the adjacent booms are hinged, and the adjacent booms are arranged between the telescopic cylinders, and the two ends of the telescopic cylinders respectively are respectively connected with the front boom and the latter
  • the boom is hinged, and the telescopic movement of the telescopic cylinder can realize the unfolding and folding of the lower boom of the boom.
  • the telescopic cylinder is in the contracted state, the cylinder is received in the front boom or/and the rear Inside the boom.
  • the boom structure of this structure will be used to unfold and gather the shrink cylinder of the next boom, which is built into the front boom or/and the rear boom when it is in the retracted state, at the boom In the collapsed state, this solution can reduce the space between the adjacent two booms in the vertical direction, increase the number of booms in the limited vertical space, and shorten the length of the single boom.
  • the minimum deployment height of the boom structure can be effectively reduced, and the boom structure can be smoothly deployed in a small space.
  • the present invention also provides a concrete pump truck having the above-described boom structure. Since the above-described boom structure has the above technical effects, the concrete pump truck having the boom structure It should also have the corresponding technical effect.
  • Figure 1 is a schematic view showing the structure of the boom structure of the concrete pump truck when it is unfolded;
  • FIGS. 3a-3c are schematic structural views of a boom structure arranged in an M-M-R manner according to the present invention
  • FIGS. 4a-4d are schematic views showing the structure of a boom structure arranged in an M-R-M type according to the present invention.
  • 5a-5c are schematic structural views of a boom structure arranged in an M-R-R manner according to the present invention.
  • Figure 6 is a schematic view showing the structure of a boom structure arranged in an R-M-R type according to the present invention.
  • Figure 7 is a schematic structural view of a boom structure arranged in an R-R-R type according to the present invention.
  • Figure 8 is a schematic view showing the structure of a boom structure arranged in an RRM type according to the present invention.
  • FIG. 2 is a schematic structural view of a specific embodiment of a boom structure provided by the present invention.
  • the boom structure provided by the present invention comprises a plurality of booms, the ends of the first boom 1 are hinged to the turntable 10, and the adjacent ends of the adjacent booms are hinged, between adjacent booms.
  • a telescopic cylinder 20 is provided. One end of the telescopic cylinder 20 is hinged to the front boom, and the other end of the telescopic cylinder 20 is hinged to the rear boom (in this application, two adjacent booms, adjacent to the arm of the turntable 10)
  • the frame is a front boom and the other boom is a rear boom.
  • the telescopic cylinder 20 is used to drive the rear boom to expand or collapse. When the telescopic cylinder 20 is in the contracted state, it is built in the previous section.
  • the arm frame of the previous section is provided with a slot structure for partially or completely accommodating the telescopic cylinder 20, and when the arm frame structure is in the folded state, the telescopic cylinder 20 is received in the front boom or / and inside the groove structure on the rear arm.
  • the boom structure of this structure will be used to unfold and gather the shrink cylinder of the next boom, and when it is in the contracted state, it is received in the groove structure on the front boom or/and the rear boom.
  • this solution can reduce the space between the adjacent two booms in the vertical direction, increase the number of booms in the limited vertical space, and thus shorten the single boom.
  • the boom structure includes a first section boom 1, a second section boom 2, a third section boom 3, a fourth section boom 4, and a fifth section boom 5.
  • the sixth section of the boom 6 and other six-section boom, each section of the boom is hinged end to end, the telescopic cylinder 20 between the second section of the boom 2 and the third section of the boom 3 is built into the second section of the boom 2
  • the gap between the second boom 2 and the third boom can be reduced, so that the fourth boom 4 and the fifth boom 5 are The position in the vertical direction is moved downward, and the sixth section boom 6 can be added at the outer end of the fifth section boom 5, and the arm can be added in a limited vertical space without changing the total length of the entire boom structure.
  • the number of sections of the rack which in turn shortens the length of the single boom.
  • the boom structure in order to smoothly deploy the boom structure in a narrow space, may include not less than one M-shaped boom unit, and the M-shaped boom unit includes a number of sequentially articulated arms of not less than three sections.
  • the M-arm unit When the M-arm unit is in the folded state, one of the arms is located between the adjacent front boom and the adjacent rear boom, and each boom in the M-arm unit can facilitate The telescopic cylinder 20 is built into the front boom to effectively reduce the gap between adjacent booms.
  • the boom structure may include not less than one R-type boom unit, and the R-type boom unit includes a number of hinges of not less than three sections.
  • a boom wherein the R-arm unit is in a collapsed state, wherein one of the booms is located between adjacent first two booms, and the third boom 3 of the M-arm unit (including the third boom)
  • the rear arm is disposed between the adjacent two booms of the boom, and the gap between the first two booms can be fully utilized to increase the number of booms in a limited vertical space.
  • the length of the single boom is shortened, and when the lengths of the other arms are substantially the same except for the first boom 1 , the minimum deployment height of the boom structure can be effectively reduced, and the boom structure can be smoothly deployed in a small space.
  • the boom structure can be arranged in an MMR type manner, and the boom structure includes at least a six-section boom, a first-section boom 1, a second-section boom 2, and a second
  • the three-section boom 3 forms the M-shaped boom unit
  • the third-section boom 3, the fourth-section boom 4, and the fifth-section boom 5 form the M-shaped boom unit
  • the fourth-section boom 4 The fifth section of the boom 5 and the sixth section of the boom 6 form the R-shaped boom unit.
  • a seventh-section boom 7 can be added on the outer side of the sixth-section boom 6, as shown in FIG. 3b and FIG. 3c, and the seventh-section boom 7 can be disposed on the upper side of the sixth-section boom 6. Or the lower side.
  • the boom structure may be arranged in an MRM type manner, and the boom structure includes at least a six-section boom, a first-section boom 1, a second-section boom 2, and a second
  • the three-section boom 3 forms the M-shaped boom unit
  • the third-section boom 3, the fourth-section boom 4, and the fifth-section boom 5 form the R-shaped boom unit
  • the fourth-section boom 4 The fifth section of the boom 5 and the sixth section of the boom 6 form the M-shaped boom unit.
  • a seventh-section boom 7 can be added on the outer side of the sixth-section boom 6. As shown in FIG. 4c and FIG.
  • the seventh-section boom 7 can be disposed on the upper side of the sixth-section boom 6. Or the lower side.
  • the existing boom in order to increase the flexibility of the boom structure, the existing boom can be cut to form two arm joints, and the number of booms can be increased, so that the arm boom can be increased without affecting the minimum deployment height of the boom.
  • the flexibility of the boom As shown in FIG. 4d, the fifth boom 5 can be cut into a hinged first arm section 51 and a second arm section 52.
  • the boom structure can be arranged in an MRR type manner, and the boom structure includes at least six booms, a first boom 1, a second boom 2, and a second
  • the three-section boom 3 forms the M-shaped boom unit
  • the third-section boom 3, the fourth-section boom 4, and the fifth-section boom 5 form the R-shaped boom unit
  • the fourth-section boom 4 The fifth section of the boom 5 and the sixth section of the boom 6 form the R-shaped boom unit.
  • a seventh-section boom 7 can be added on the outer side of the sixth-section boom 6.
  • the seventh-section boom 7 can be disposed on the upper or lower side of the sixth-section boom 6. .
  • the boom structure may be arranged in an RMR type, the boom structure includes at least six booms, a first boom 1, a second boom 2, and a third boom.
  • the frame 3 forms the R-shaped boom unit, and the third-section boom 3, the fourth-section boom 4, and the fifth-section boom 5 form the M-shaped boom unit, the fourth-section boom 4, and the fifth section
  • the boom 5 and the sixth boom 6 form the R-arm unit.
  • the boom structure may be arranged in an RRR type manner, and the boom structure includes at least six booms, a first boom 1, a second boom 2, and a third arm.
  • the frame 3 forms the R-shaped boom unit, and the third-section boom 3, the fourth-section boom 4, and the fifth-section boom 5 form the R-shaped boom unit, the fourth-section boom 4, and the fifth section
  • the boom 5 and the sixth boom 6 form the R-arm unit.
  • the boom structure may be arranged in an RRM type manner, and the boom structure includes at least six booms, a first boom 1, a second boom 2, and a third arm.
  • the frame 3 forms the R-shaped boom unit, and the third-section boom 3, the fourth-section boom 4, and the fifth-section boom 5 form the R-shaped boom unit, the fourth-section boom 4, and the fifth section
  • the boom 5 and the sixth boom 6 form the M-arm unit.
  • the present invention is not limited to the number of sections of the boom. Where the boom structure has the first six-section boom arranged in the above arrangement, it should be within the scope of the present invention.
  • the telescopic cylinder between the second boom 2 and the third boom 3 is built in the third boom 3.
  • the present invention is not limited thereto, and any two adjacent booms are provided.
  • the telescopic cylinders can be built into the former boom, and these solutions are all within the scope of the present invention.
  • the telescopic cylinder is built in the front boom, and the present invention is not limited thereto.
  • the telescopic cylinder can also be built in the rear boom. Both solutions should be within the scope of the present invention. .
  • the present invention also provides a concrete pump truck having the above-described boom structure, the end of the first boom 1 of the boom structure being hinged to the turntable 10, since the above-described boom structure has the above-mentioned technology
  • the concrete pump truck with the boom structure should also have corresponding technical effects.

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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)

Abstract

一种臂架结构及设有该臂架结构的混凝土泵车,该臂架结构的第一节臂架(1)的端部与转台(10)铰接,相邻臂架的相邻端铰接,相邻臂架之间设有伸缩油缸(20),伸缩油缸(20)的两端分别与前后臂架铰接,伸缩油缸(20)收缩时内置于其一臂架内。该臂架结构折叠后间隙较小,可布置更多的臂架以及适于狭小空间作业。

Description

一种臂架结构及混凝土泵车 本申请要求于 2011 年 06 月 13 日提交中国专利局、 申请号为 201110157564.2、 发明名称为"一种臂架结构及混凝土泵车,,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
本发明涉及混凝土泵车技术领域, 尤其涉及一种可在狭小空间内布料 的臂架结构。 本发明还涉及一种具有上述臂架结构的混凝土泵车。
背景技术
混凝土泵车是利用压力将混凝土沿管道连续输送的机械设备, 其主要 由泵体和输送管组成。 混凝土泵车在工作过程中, 需要通过固定于臂架结 构上的输送管将混凝土输送至指定位置, 并且随着输送位置的变化, 臂架 结构需要带动输送管实现展开、 收拢以及旋转等动作。 混凝土泵车的臂架 结构一般包括多节臂架, 且各节臂架之间能够折叠。
由于受交通法规限制, 混凝土泵车的臂架在折叠后不得使其整车高度 高于一定值, 因此臂架折叠时可布置的竖直空间非常有限, 从而限制了臂 架的节数。 受此影响, 一方面不利于发展节数较多的超长臂架, 另一方面 不利于在臂架总长不变时降低单节臂架的长度, 从而使臂架结构展开要求 的最小空间 (即臂架结构的最小展开高度 H, 参看图 1 )较大, 混凝土泵 车难以在狭小空间内展开臂架施工。
因此, 如何减少臂架折叠时的间隙、 在有限的竖直空间内布置更多的 臂架, 成为本领域技术人员亟待解决的技术难题。
发明内容
本发明的第一个目的是提供一种臂架结构, 该臂架结构折叠时的间隙 较小, 可在有限的竖直空间内布置更多的臂架。 本发明的第二个目的是提 供一种具有上述臂架结构的混凝土泵车。
为了实现上述第一个目的, 本发明提供了一种臂架结构, 包括不少于 一个的臂架, 相邻臂架的相邻端铰接, 第一节臂架的端部与转台铰接, 相 邻臂架之间设有用于展开或收拢臂架的伸缩油缸, 该伸缩油缸的两端分别 与前一节臂架、 后一节臂架铰接, 所述伸缩油缸处于收缩状态时, 其缸体 收容于所述前一节臂架内和 /或所述后一节臂架内。 优选的, 所述前一节臂架和所述后一节臂架上均开设有凹槽, 所述伸 缩油缸处于收缩状态时, 其缸体的两端分别收容于所述前一节臂架和所述 后一节臂架的凹槽内。
优选的,所述臂架结构包括不少于一个的 M型臂架单元或 R型臂架单 元, 该 M型臂架单元包括数量不少于三节的依次铰接的臂架, 该 M型臂 架单元处于收拢状态时, 其中一节臂架位于相邻前一节臂架和相邻后一节 臂架之间, 该 R型臂架单元包括数量不少于三节的依次铰接的臂架, 该 R 型臂架单元处于收拢状态时, 其中一节臂架位于相邻前两节臂架之间。
优选的, 该臂架结构至少包括六节臂架, 第一节臂架、 第二节臂架、 第三节臂架形成所述 M型臂架单元, 第三节臂架、 第四节臂架、 第五节臂 架形成所述 M型臂架单元, 第四节臂架、 第五节臂架、 第六节臂架形成所 述 R型臂架单元。
优选的, 该臂架结构至少包括六节臂架, 第一节臂架、 第二节臂架、 第三节臂架形成所述 M型臂架单元, 第三节臂架、 第四节臂架、 第五节臂 架形成所述 R型臂架单元, 第四节臂架、 第五节臂架、 第六节臂架形成所 述 M型臂架单元。
优选的, 该臂架结构至少包括六节臂架, 第一节臂架、 第二节臂架、 第三节臂架形成所述 M型臂架单元, 第三节臂架、 第四节臂架、 第五节臂 架形成所述 R型臂架单元, 第四节臂架、 第五节臂架、 第六节臂架形成所 述 R型臂架单元。
优选的, 该臂架结构至少包括六节臂架, 第一节臂架、 第二节臂架、 第三节臂架形成所述 R型臂架单元, 第三节臂架、 第四节臂架、 第五节臂 架形成所述 M型臂架单元, 第四节臂架、 第五节臂架、 第六节臂架形成所 述 R型臂架单元。
优选的, 该臂架结构至少包括六节臂架, 第一节臂架、 第二节臂架、 第三节臂架形成所述 R型臂架单元, 第三节臂架、 第四节臂架、 第五节臂 架形成所述 R型臂架单元, 第四节臂架、 第五节臂架、 第六节臂架形成所 述 R型臂架单元。
优选的, 该臂架结构至少包括六节臂架, 第一节臂架、 第二节臂架、 第三节臂架形成所述 R型臂架单元, 第三节臂架、 第四节臂架、 第五节臂 架形成所述 R型臂架单元, 第四节臂架、 第五节臂架、 第六节臂架形成所 述 M型臂架单元。
本发明所提供的臂架结构包括多个臂架, 相邻臂架的相邻端铰接, 相 邻臂架之间设于伸缩油缸, 伸缩油缸的两端分别与前一节臂架、 后一节臂 架铰接, 伸缩油缸的伸缩动作可以实现臂架下一节臂架的展开和收拢, 该 伸缩油缸处于收缩状态时,其缸体收容于所述前一节臂架内或 /和后一节臂 架内。
这种结构的臂架结构将用于展开和收拢下一节臂架的收缩油缸, 在其 处于收缩状态时内置于前一节臂架内或 /和后一节臂架内,在臂架处于收拢 状态时, 这种方案可减小相邻两节臂架之间在竖直方向的空间, 在有限的 竖直空间内增加臂架的节数, 进而缩短单个臂架的长度, 在除第一节臂架 以外其他臂架长度基本一致时, 可有效降低臂架结构的最小展开高度, 可 将臂架结构在狭小的空间内顺利展开。
为了实现上述第二个目的, 本发明还提供了一种混凝土泵车, 该混凝 土泵车具有上述的臂架结构, 由于上述的臂架结构具有上述技术效果, 具 有该臂架结构的混凝土泵车也应具有相应的技术效果。
附图说明
图 1为混凝土泵车的臂架结构处于展开时的结构示意图;
图 2为本发明所提供的臂架结构的一种具体实施方式的结构示意图; 图 3a-图 3c为本发明所提供的以 M-M-R型方式布置的臂架结构的结构 示意图;
图 4a-图 4d为本发明所提供的以 M-R-M型方式布置的臂架结构的结 构示意图;
图 5a-图 5c为本发明所提供的以 M-R-R型方式布置的臂架结构的结构 示意图;
图 6为本发明所提供的以 R-M-R型方式布置的臂架结构的结构示意 图;
图 7 为本发明所提供的以 R-R-R型方式布置的臂架结构的结构示意 图;
图 8为本发明所提供的以 R-R-M型方式布置的臂架结构的结构示意 图;
其中, 图 1-图 8中:
第一节臂架 1、 第二节臂架 2、 第三节臂架 3、 第四节臂架 4、 第五节 臂架 5、 第一臂节 51、 第二臂节 52、 第六节臂架 6、 第七节臂架 7、 转台 10、 伸缩油缸 20。
具体实施方式
为了使本领域的技术人员更好的理解本发明的技术方案, 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。
请参看图 2, 图 2为本发明所提供的臂架结构的一种具体实施方式的 结构示意图。
如图 2所示, 本发明所提供的臂架结构包括多个臂架, 第一节臂架 1 的端部与转台 10铰接,相邻臂架的相邻端铰接,相邻臂架之间设有伸缩油 缸 20, 伸缩油缸 20的一端与前一节臂架铰接, 伸缩油缸 20的另一端与后 一节臂架铰接(本申请中, 相邻的两节臂架, 靠近转台 10的臂架为前一节 臂架, 另一节臂架为后一节臂架), 伸缩油缸 20用于驱动后一节臂架进行 展开或收拢动作,伸缩油缸 20处于收缩状态时内置于前一节臂架内,具体 的方案中,在前一节的臂架上设有用于部分或全部容纳伸缩油缸 20的 槽 结构, 臂架结构处于收拢状态时, 伸缩油缸 20收容于前一节臂架或 /和后 一节臂架上的凹槽结构内。
这种结构的臂架结构将用于展开和收拢下一节臂架的收缩油缸, 在其 处于收缩状态时收容于前一节臂架或 /和后一节臂架上的凹槽结构内,在臂 架结构处于收拢状态时, 这种方案可减小相邻两节臂架之间在竖直方向的 空间, 在有限的竖直空间内增加臂架的节数, 进而缩短单个臂架的长度, 在除第一节臂架 1以外其他臂架长度基本一致时, 可有效降低臂架结构的 最小展开高度, 可将臂架结构在狭小的空间内顺利展开。
具体的方案中, 如图 2所示, 该臂架结构包括第一节臂架 1、 第二节 臂架 2、 第三节臂架 3、 第四节臂架 4、 第五节臂架 5、 第六节臂架 6等六 节臂架, 各节臂架依次首尾铰接, 第二节臂架 2与第三节臂架 3之间的伸 缩油缸 20内置于第二节臂架 2内,在臂架结构处于收拢状态时,可减小第 二节臂架 2与第三臂架之间的间隙, 使得第四节臂架 4、 第五节臂架 5在 竖直方向的位置下移, 可在第五节臂架 5的外端加设第六节臂架 6, 可在 整个臂架结构总长不变的情况下, 在有限的竖直空间内增加臂架的节数, 进而缩短单个臂架的长度。
优选方案中, 为了能够在狭小空间内顺利将臂架结构展开, 臂架结构 可包括不少于一个的 M型臂架单元, 该 M型臂架单元包括数量不少于三 节的依次铰接的臂架, 该 M型臂架单元处于收拢状态时, 其中一节臂架位 于相邻前一节臂架和相邻后一节臂架之间, M型臂架单元中的各臂架可便 于将伸缩油缸 20内置于前一节臂架内, 可有效减小相邻臂架之间的间隙。
优选方案中, 为了充分利用竖直方向上各臂架之间的间隙, 臂架结构 可包括不少于一个的 R型臂架单元,该 R型臂架单元包括数量不少于三节 的依次铰接的臂架, 该 R型臂架单元处于收拢状态时, 其中一节臂架位于 相邻前两节臂架之间, M型臂架单元中的第三节臂架 3 (包括第三节臂架 3 )往后的臂架设于该臂架相邻前两节臂架之间,可充分利用所述前两节臂 架之间的间隙, 在有限的竖直空间内增加臂架的节数, 进而缩短单个臂架 的长度, 在除第一节臂架 1以外其他臂架长度基本一致时, 可有效降低臂 架结构的最小展开高度, 可将臂架结构在狭小的空间内顺利展开。
具体的方案中,如图 3a-图 3c所示,臂架结构可按 M-M-R型方式布置, 该臂架结构至少包括六节臂架, 第一节臂架 1、 第二节臂架 2、 第三节臂架 3形成所述 M型臂架单元, 第三节臂架 3、 第四节臂架 4、 第五节臂架 5 形成所述 M型臂架单元, 第四节臂架 4、 第五节臂架 5、 第六节臂架 6形 成所述 R型臂架单元。 优选方案中, 可在第六节臂架 6的外侧加设第七节 臂架 7, 如图 3b、 图 3c所示, 第七节臂架 7可设于第六节臂架 6的上侧或 下侧。
具体的方案中, 如图 4a-图 4d所示, 臂架结构可按 M-R-M型方式布 置, 该臂架结构至少包括六节臂架, 第一节臂架 1、 第二节臂架 2、 第三节 臂架 3形成所述 M型臂架单元, 第三节臂架 3、 第四节臂架 4、 第五节臂 架 5形成所述 R型臂架单元, 第四节臂架 4、 第五节臂架 5、 第六节臂架 6 形成所述 M型臂架单元。优选方案中, 可在第六节臂架 6的外侧加设第七 节臂架 7, 如图 4c、 图 4d所示, 第七节臂架 7可设于第六节臂架 6的上侧 或下侧。 更优的方案中, 为了增加臂架结构的灵活性, 可将已有的臂架截断形 成两个臂节,增加臂架数量,这样在对臂架最小展开高度无影响的情况下, 可以增加臂架的灵活性。如图 4d所示, 第五节臂架 5可截成铰接的第一臂 节 51、 第二臂节 52。
具体的方案中,如图 5a-图 5c所示,臂架结构可按 M-R-R型方式布置, 该臂架结构至少包括六节臂架, 第一节臂架 1、 第二节臂架 2、 第三节臂架 3形成所述 M型臂架单元, 第三节臂架 3、 第四节臂架 4、 第五节臂架 5 形成所述 R型臂架单元, 第四节臂架 4、 第五节臂架 5、 第六节臂架 6形 成所述 R型臂架单元。 优选方案中, 可在第六节臂架 6的外侧加设第七节 臂架 7, 如图 5c所示, 第七节臂架 7可设于第六节臂架 6的上侧或下侧。
具体的方案中, 如图 6所示, 臂架结构可按 R-M-R型方式布置, 该臂 架结构至少包括六节臂架, 第一节臂架 1、 第二节臂架 2、 第三节臂架 3 形成所述 R型臂架单元, 第三节臂架 3、 第四节臂架 4、 第五节臂架 5形 成所述 M型臂架单元, 第四节臂架 4、 第五节臂架 5、 第六节臂架 6形成 所述 R型臂架单元。
具体的方案中, 如图 7所示, 臂架结构可按 R-R-R型方式布置, 该臂 架结构至少包括六节臂架, 第一节臂架 1、 第二节臂架 2、 第三节臂架 3 形成所述 R型臂架单元, 第三节臂架 3、 第四节臂架 4、 第五节臂架 5形 成所述 R型臂架单元, 第四节臂架 4、 第五节臂架 5、 第六节臂架 6形成 所述 R型臂架单元。
具体的方案中, 如图 8所示, 臂架结构可按 R-R-M型方式布置, 该臂 架结构至少包括六节臂架, 第一节臂架 1、 第二节臂架 2、 第三节臂架 3 形成所述 R型臂架单元, 第三节臂架 3、 第四节臂架 4、 第五节臂架 5形 成所述 R型臂架单元, 第四节臂架 4、 第五节臂架 5、 第六节臂架 6形成 所述 M型臂架单元。
本发明对臂架的节数没有限制, 凡臂架结构具有前六节臂架按上述布 置方式布置, 均应在本发明的保护范围内。
上述实施例中, 将第二节臂架 2、 第三节臂架 3之间的伸缩油缸内置 于第三节臂架 3内, 本发明并不局限于此, 任何两节相邻的臂架之间的伸 缩油缸均可内置于前一节臂架内, 这些方案均应在本发明的保护范围内。 上述实施例中,伸缩油缸内置于前一节臂架内,本发明并不局限于此, 伸缩油缸还可以内置于后一节臂架内, 这两种方案均应在本发明的保护范 围内。
本发明还提供了一种混凝土泵车,该混凝土泵车具有上述的臂架结构, 该臂架结构的第一节臂架 1的端部与转台 10铰接,由于上述的臂架结构具 有上述技术效果,具有该臂架结构的混凝土泵车也应具有相应的技术效果。
以上所述仅是发明的优选实施方式的描述, 应当指出, 由于文字表达 的有限性, 而在客观上存在无限的具体结构, 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, 还可以做出若干改进和润饰, 这些改进和润饰也应视为本发明的保护范围。

Claims

1、 一种臂架结构, 包括不少于一个的臂架, 相邻臂架的相邻端铰接, 第一节臂架( 1 )的端部与转台 ( 10)铰接, 相邻臂架之间设有用于展开或 收拢臂架的伸缩油缸(20), 该伸缩油缸(20) 的两端分别与前一节臂架、 后一节臂架铰接, 其特征在于, 所述伸缩油缸(20)处于收缩状态时, 其 缸体收容于所述前一节臂架内和 /或所述后一节臂架内。
2、根据权利要求 1所述的臂架结构, 其特征在于, 所述前一节臂架和 所述后一节臂架上均开设有凹槽, 所述伸缩油缸(20)处于收缩状态时, 其缸体的两端分别收容于所述前一节臂架和所述后一节臂架的 槽内。
3、根据权利要求 1或 2所述的臂架结构, 其特征在于, 所述臂架结构 包括不少于一个的 M型臂架单元或 R型臂架单元, 该 M型臂架单元包括 数量不少于三节的依次铰接的臂架, 该 M型臂架单元处于收拢状态时, 其 中一节臂架位于相邻前一节臂架和相邻后一节臂架之间, 该 R型臂架单元 包括数量不少于三节的依次铰接的臂架,该 R型臂架单元处于收拢状态时, 其中一节臂架位于相邻前两节臂架之间。
4、根据权利要求 3所述的臂架结构, 其特征在于, 该臂架结构至少包 括六节臂架, 第一节臂架(1)、 第二节臂架(2)、 第三节臂架(3)形成所 述 M型臂架单元, 第三节臂架(3)、 第四节臂架(4)、 第五节臂架(5) 形成所述 M型臂架单元, 第四节臂架(4)、 第五节臂架(5)、 第六节臂架 (6)形成所述 R型臂架单元。
5、根据权利要求 3所述的臂架结构, 其特征在于, 该臂架结构至少包 括六节臂架, 第一节臂架(1)、 第二节臂架(2)、 第三节臂架(3)形成所 述 M型臂架单元, 第三节臂架(3)、 第四节臂架(4)、 第五节臂架(5) 形成所述 R型臂架单元, 第四节臂架(4)、 第五节臂架(5)、 第六节臂架 (6)形成所述 M型臂架单元。
6、根据权利要求 3所述的臂架结构, 其特征在于, 该臂架结构至少包 括六节臂架, 第一节臂架(1)、 第二节臂架(2)、 第三节臂架(3)形成所 述 M型臂架单元, 第三节臂架(3)、 第四节臂架(4)、 第五节臂架(5) 形成所述 R型臂架单元, 第四节臂架(4)、 第五节臂架(5)、 第六节臂架 (6)形成所述 R型臂架单元。
7、根据权利要求 3所述的臂架结构, 其特征在于, 该臂架结构至少包 括六节臂架, 第一节臂架(1)、 第二节臂架(2)、 第三节臂架(3)形成所 述 R型臂架单元, 第三节臂架(3)、 第四节臂架(4)、 第五节臂架(5) 形成所述 M型臂架单元, 第四节臂架(4)、 第五节臂架(5)、 第六节臂架 (6)形成所述 R型臂架单元。
8、根据权利要求 3所述的臂架结构, 其特征在于, 该臂架结构至少包 括六节臂架, 第一节臂架(1)、 第二节臂架(2)、 第三节臂架(3)形成所 述 R型臂架单元, 第三节臂架(3)、 第四节臂架(4)、 第五节臂架(5) 形成所述 R型臂架单元, 第四节臂架(4)、 第五节臂架(5)、 第六节臂架 (6)形成所述 R型臂架单元。
9、根据权利要求 3所述的臂架结构, 其特征在于, 该臂架结构至少包 括六节臂架, 第一节臂架(1)、 第二节臂架(2)、 第三节臂架(3)形成所 述 R型臂架单元, 第三节臂架(3)、 第四节臂架(4)、 第五节臂架(5) 形成所述 R型臂架单元, 第四节臂架(4)、 第五节臂架(5)、 第六节臂架 (6)形成所述 M型臂架单元。
10、 一种混凝土泵车, 其特征在于, 包括权利要求 1-9任一项所述的 臂架结构, 该臂架结构的第一节臂架(1) 与转台 (10)铰接。
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CN102359278B (zh) * 2011-09-28 2013-08-21 中联重科股份有限公司 混凝土泵车的臂架及混凝土泵车
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CN102518305B (zh) * 2011-12-13 2013-08-28 中联重科股份有限公司 混凝土泵车的臂架及混凝土泵车
DE102017203705A1 (de) * 2017-03-07 2018-09-13 Putzmeister Engineering Gmbh Auslegerarmsystem mit bauraumreduzierender Einfaltstellung
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CN112252727A (zh) * 2020-08-26 2021-01-22 河北雷萨重型工程机械有限责任公司 臂架装置和工程机械
CN114517578B (zh) * 2020-11-20 2023-04-28 三一汽车制造有限公司 作业车辆
CN114517580B (zh) * 2020-11-20 2024-03-08 三一汽车制造有限公司 臂架装置及作业车辆
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