WO2023087437A1 - 一种塔机臂架结构 - Google Patents

一种塔机臂架结构 Download PDF

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Publication number
WO2023087437A1
WO2023087437A1 PCT/CN2021/137321 CN2021137321W WO2023087437A1 WO 2023087437 A1 WO2023087437 A1 WO 2023087437A1 CN 2021137321 W CN2021137321 W CN 2021137321W WO 2023087437 A1 WO2023087437 A1 WO 2023087437A1
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connecting frame
frame
tower crane
crane jib
structure according
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PCT/CN2021/137321
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English (en)
French (fr)
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米成宏
陈长华
汪燕
王成运
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徐州建机工程机械有限公司
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Publication of WO2023087437A1 publication Critical patent/WO2023087437A1/zh

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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
    • 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
    • B66C23/64—Jibs

Definitions

  • the utility model belongs to the technical field of cranes, in particular to a tower crane jib structure.
  • Tower crane (abbreviated as tower crane in this application) is a common lifting equipment, which has the advantages of large working space, etc., and is widely used in vertical and horizontal transportation of building construction materials and installation of building components.
  • the tower crane usually includes a tower frame, a boom, a tower crane trolley and a spreader.
  • the tower is set up vertically.
  • One end of the boom is fixed on the upper end of the tower.
  • the spreader is connected to the tower crane trolley.
  • the trolley driving device such as the reel of the web mechanism, it can reciprocate along the boom, and the boom can rotate around the center of rotation.
  • the utility model provides a tower crane jib structure to solve the problems that the jib bears heavy pressure from small wheels, heavy single section weight, large external dimensions, and large lateral deformation; the utility model adopts the following technical scheme:
  • a tower crane jib structure comprising a plurality of first connecting frames and a plurality of second connecting frames; the first connecting frames are arranged in parallel in pairs; the two first connecting frames arranged in parallel are connected are connected through the second connecting frame;
  • the second connecting frame includes a first connecting frame and two second connecting frames; the first connecting frame is connected to the first connecting frame through positioning pins; the two second connecting frames are connected to each other and symmetrically arranged on the first connecting frame. Above the connecting frame; the second connecting frame is connected to the first connecting frame through connecting rods; the four corners of the second connecting frame are provided with connecting parts for connecting the first connecting frame.
  • first connecting frame is provided with a pin hole for matching with a positioning pin; the first connecting frame is provided with a mounting plate, and the mounting plate is bolted to the first connecting frame.
  • first connection frame and the second connection frame is rectangular; the lengths of the first connection frame and the second connection frame along the extension direction of the boom are equal.
  • a second support plate is added between the first connection frame and the second connection frame; the second support plate is arranged obliquely; two first support plates are arranged diagonally on the first connection frame, and the two The middle parts of the first support boards are connected to each other.
  • the second connecting frame includes an upper string beam and an upper string rod; two upper string rods are connected between two mutually parallel upper string beams; and the connecting parts are arranged at both ends of the upper string beam.
  • the connecting part is connected to the first connecting frame through a pin shaft; the connecting part includes three extension plates parallel to each other; the extension plate is provided with a bush for the pin shaft.
  • a reinforcing plate is provided above the connecting portion; three extension plates are fixedly connected to the reinforcing plate.
  • cross-section of the first connecting frame is an inverted triangle.
  • the first connecting frames are arranged side by side in pairs and arranged linearly; the two first connecting frames arranged side by side are connected through the second connecting frame; through the first connecting frame arranged side by side
  • the frame increases the bearing capacity of the jib, and more trolleys can be arranged.
  • the first connecting frame and the first connecting frame are connected through positioning pins; the four corners of the first connecting frame are provided with connecting parts; the connecting parts are connected to the first connecting frame through pin shafts.
  • connection the connection structure is simple, easy to dismantle and install the boom.
  • Fig. 1 is the structural diagram of the jib provided by the embodiment of the present invention.
  • Fig. 2 is a structural diagram of the first connecting frame provided by the embodiment of the utility model
  • Fig. 3 is a structural diagram of the connection part provided by the embodiment of the utility model.
  • first connection frame 1 first connection frame, 2 second connection frame, 21 first connection frame, 211 pin hole, 212 first support plate, 213 installation plate, 22 second connection frame, 221 upper chord rod, 222 upper chord beam, 223 Connecting part, 2231 extension plate, 2232 bushing, 2233 reinforcement plate, 23 connecting column, 24 second support plate.
  • the meaning of “plurality” is two or more; the terms “installation”, “connection” and “connection” should be understood in a broad sense, for example, it can be A fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components.
  • a fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components.
  • the utility model embodiment provides a tower crane jib structure, including a plurality of first connecting frames 1 and a plurality of second connecting frames 2; the cross section of the first connecting frames 1 is Inverted triangle type, using the stability of the triangle to improve the strength of the boom; the first connecting frames 1 are arranged in parallel in pairs and arranged linearly; the two first connecting frames 1 arranged in parallel are connected through the second connection The frame 2 is connected; the first connecting frame 1 arranged side by side increases the bearing capacity of the arm frame, and more trolleys can be arranged; the structure split unit is smaller, light in weight, small in size, and convenient for transportation and installation.
  • the second connection frame 2 includes a first connection frame 21 and two second connection frames 22; the first connection frame 21 is connected to the first connection frame 1 through positioning pins; the two second connection frames 22 are connected to each other and are symmetrical It is arranged above the first connecting frame 21; the second connecting frame 22 is connected to the first connecting frame 21 through connecting rods 23; 1 of the connecting portion 223 .
  • the shape of the first connecting frame 21 and the second connecting frame 22 is rectangular; the lengths of the first connecting frame 21 and the second connecting frame 22 along the extension direction of the boom are equal; the first connecting frame 21 is provided with A pin hole 211 for matching the positioning pin; a mounting plate 213 is provided on the first connecting frame 21 , and the mounting plate 213 is bolted to the first connecting frame 1 .
  • a second support plate 24 is added between the first connection frame 21 and the second connection frame 22; the second support plate 24 is arranged obliquely; the first connection frame 21 is diagonally provided with two first support plates 212 , and the middle parts of the two first support plates 212 are connected to each other, and the rigidity of the boom is improved through the first support plate 212 and the second support plate 24 .
  • the second connection frame 22 includes an upper run beam 222 and an upper run beam 221 ; two upper run beams 221 are connected between two parallel upper run beams 222 ;
  • the connecting part 223 is connected with the first connecting frame 1 through a pin shaft; the connecting part 223 includes three extension plates 2231 parallel to each other; the extension plate 2231 is provided with a bushing 2232 for the pin shaft; the connection A reinforcing plate 2233 is arranged above the part 223; three extension plates 2231 are fixedly connected with the reinforcing plate 2233, and the strength of the connecting part 223 is improved through the reinforcing plate 2233.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

一种塔机臂架结构，包括多个第一连接架（1）和多个第二连接架（2）；所述第一连接架（1）两两并列，并呈线性排布；所述并列设置的两第一连接架（1）之间通过第二连接架（2）连接；所述第二连接架（2）包括第一连接框（21）和两第二连接框（22）；所述第一连接框（21）与第一连接架（1）通过定位销连接；两第二连接框（22）相互连接，且对称设置于所述第一连接框（21）上方；所述第二连接框（22）通过连接杆（23）与所述第一连接框（21）连接；所述第二连接框（22）的四边角上设有用于连接第一连接架（1）的连接部（223）。

Description

一种塔机臂架结构 技术领域
本实用新型属于起重机技术领域，尤其涉及一种塔机臂架结构。
背景技术
塔式起重机(本申请中简称塔机)是一种常见的起重设备，其具有作业空间大等优点，广泛应用于房屋建筑施工物料的垂直和水平输送及建筑构件的安装。
塔机通常包括塔架、吊臂、塔机小车及吊具，塔架呈竖直状设置，吊臂的一端固定在塔架的上端，吊具连接在塔机小车上，塔机小车在变幅机构的卷筒等小车驱动装置的驱动下可沿吊臂做往复运动，吊臂可绕回转中心回转。
吊臂的臂架应用于超大塔机时，存在臂架承受小车轮压大、单节重量重、外形尺寸大、侧向变形大的问题。
实用新型内容
本实用新型提供一种塔机臂架结构，以解决臂架承受小车轮压大、单节重量重、外形尺寸大、侧向变形大的问题；本实用新型采用如下技术方案：
一种塔机臂架结构，包括多个第一连接架和多个第二连接架；所述第一连接架两两并列，并呈线性排布；所述并列设置的两第一连接架连接之间通过第二连接架连接；
所述第二连接架包括第一连接框和两第二连接框；所述第一连接 框与第一连接架通过定位销连接；两第二连接框相互连接，且对称设置于所述第一连接框上方；所述第二连接框通过连接杆与所述第一连接框；所述第二连接框的四边角上设有用于连接第一连接架的连接部。
进一步地，所述第一连接框设有与定位销配合的销孔；所述第一连接框上设有安装板，所述安装板与第一连接架螺栓连接。
进一步地，所述第一连接框和第二连接框的形状为矩形；所述第一连接框和第二连接框沿臂架延伸方向的长度相等。
进一步地，所述第一连接框和第二连接框之间增设有第二支撑板；所述第二支撑板倾斜设置；所述第一连接框对角设置有两第一支撑板，且两第一支撑板的中部相互连接。
进一步地，所述第二连接框包括上弦梁、上弦杆；两相互平行的上弦梁之间连接有两上弦杆；所述连接部设置于上弦梁两端。
进一步地，所述连接部通过销轴与第一连接架连接；所述连接部包括相互平行的三个延伸板；所述延伸板上设有用于销轴的衬套。
进一步地，所述连接部上方设有加固板；三个延伸板与加固板固定连接。
进一步地，所述第一连接架的横截面为倒三角型。
与现有技术相比，本实用新型所达到的有益效果是：
一方面，本实用新型在所述第一连接架两两并列，并呈线性排布；所述并列设置的两第一连接架连接之间通过第二连接架连接；通过并列设置的第一连接架增大臂架的承受能力，并且可布置更多小车。
另一方面，本实用新型中所述第一连接框与第一连接架通过定位销 连接；述第一连接框的四边角上设有连接部；所述连接部通过销轴与第一连接架连接，该连接结构简单，便于臂架的拆卸和安装。
附图说明
图1是本实用新型实施例提供的臂架的结构图；
图2是本实用新型实施例提供第一连接架的结构图；
图3是本实用新型实施例提供连接部的结构图。
图中：1第一连接架、2第二连接架、21第一连接框、211销孔、212第一支撑板、213安装板、22第二连接框、221上弦杆、222上弦梁、223连接部、2231延伸板、2232衬套、2233加固板、23连接柱、24第二支撑板。
具体实施方式
下面结合附图对本实用新型作进一步描述，以下实施例仅用于更加清楚地说明本实用新型的技术方案，而不能以此来限制本实用新型的保护范围。
在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“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实用新型和简化描述，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实用新型的限制。
此外，在本实用新型的描述中，除非另有说明，“多个”的含义 是两个或两个以上；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，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本实用新型中的具体含义。
如图1至3所示，本实用新型实施例提供一种塔机臂架结构，包括多个第一连接架1和多个第二连接架2；所述第一连接架1的横截面为倒三角型，利用三角形的稳定性，提高臂架强度；所述第一连接架1两两并列，并呈线性排布；所述并列设置的两第一连接架1连接之间通过第二连接架2连接；通过并列设置的第一连接架1增大臂架的承受能力，并且可布置更多小车；该结构拆分单元更小，重量轻、外形尺寸小、运输安装方便。
所述第二连接架2包括第一连接框21和两第二连接框22；所述第一连接框21与第一连接架1通过定位销连接；两第二连接框22相互连接，且对称设置于所述第一连接框21上方；所述第二连接框22通过连接杆23与所述第一连接框21；所述第二连接框22的四边角上设有用于连接第一连接架1的连接部223。
所述第一连接框21和第二连接框22的形状为矩形；所述第一连接框21和第二连接框22沿臂架延伸方向的长度相等；所述第一连接框21设有与定位销配合的销孔211；所述第一连接框21上设有安装板213，所述安装板213与第一连接架1螺栓连接。
所述第一连接框21和第二连接框22之间增设有第二支撑板24；所述第二支撑板24倾斜设置；所述第一连接框21对角设置有两第一支撑板212，且两第一支撑板212的中部相互连接，通过第一支撑板212和第二支撑板24提高臂架的刚度。
所述第二连接框22包括上弦梁222、上弦杆221；两相互平行的上弦梁222之间连接有两上弦杆221；所述连接部223设置于上弦梁222两端。
所述连接部223通过销轴与第一连接架1连接；所述连接部223包括相互平行的三个延伸板2231；所述延伸板2231上设有用于销轴的衬套2232；所述连接部223上方设有加固板2233；三个延伸板2231与加固板2233固定连接，通过加固板2233提高连接部223的强度。
以上所述仅为本实用新型的优选实例而已，并不用于限制本实用新型，尽管参照前述实施例对本实用新型进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特进行等同替换。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (8)

  1. 一种塔机臂架结构，其特征在于，包括多个第一连接架(1)和多个第二连接架(2)；所述第一连接架(1)两两并列，并呈线性排布；所述并列设置的两第一连接架(1)连接之间通过第二连接架(2)连接；
    所述第二连接架(2)包括第一连接框(21)和两第二连接框(22)；所述第一连接框(21)与第一连接架(1)通过定位销连接；两第二连接框(22)相互连接，且对称设置于所述第一连接框(21)上方；所述第二连接框(22)通过连接杆(23)与所述第一连接框(21)；所述第二连接框(22)的四边角上设有用于连接第一连接架的连接部(223)。
  2. 根据权利要求1所述的一种塔机臂架结构，其特征在于，所述第一连接框(21)设有与定位销配合的销孔；所述第一连接框(21)上设有安装板(213)，所述安装板(213)与第一连接架(1)螺栓连接。
  3. 根据权利要求1所述的一种塔机臂架结构，其特征在于，所述第一连接框(21)和第二连接框(22)的形状为矩形；所述第一连接框(21)和第二连接框(22)沿臂架延伸方向的长度相等。
  4. 根据权利要求1所述的一种塔机臂架结构，其特征在于，所述第一连接框(21)和第二连接框(22)之间增设有第二支撑板(24)；所述第二支撑板(24)倾斜设置；所述第一连接框(21)对角设置有两第一支撑板(212)，且两第一支撑板(212)的中部相互连接。
  5. 根据权利要求1所述的一种塔机臂架结构，其特征在于，所述第二连接框(22)包括上弦梁(222)、上弦杆(221)；两相互平行的上弦梁(222)之间连接有两上弦杆(221)；所述连接部(223)设置于上弦梁(222)两端。
  6. 根据权利要求1或5所述的一种塔机臂架结构，其特征在于，所述连接部(223)通过销轴与第一连接架(1)连接；所述连接部(223)包括相互平行的三个延伸板(2231)；所述延伸板(2231)上设有用于销轴的衬套(2232)。
  7. 根据权利要求6所述的一种塔机臂架结构，其特征在于，所述连接部(223)上方设有加固板(2233)；三个延伸板(223)与加固板(2233)固定连接。
  8. 根据权利要求1所述的一种塔机臂架结构，其特征在于，所述第一连接架(1)的横截面为倒三角型。
PCT/CN2021/137321 2021-11-22 2021-12-13 一种塔机臂架结构 WO2023087437A1 (zh)

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