WO2015090109A1 - 副臂变幅装置、起重机及副臂变幅方法 - Google Patents

副臂变幅装置、起重机及副臂变幅方法 Download PDF

Info

Publication number
WO2015090109A1
WO2015090109A1 PCT/CN2014/089026 CN2014089026W WO2015090109A1 WO 2015090109 A1 WO2015090109 A1 WO 2015090109A1 CN 2014089026 W CN2014089026 W CN 2014089026W WO 2015090109 A1 WO2015090109 A1 WO 2015090109A1
Authority
WO
WIPO (PCT)
Prior art keywords
luffing
jib
pulley
boom
pull plate
Prior art date
Application number
PCT/CN2014/089026
Other languages
English (en)
French (fr)
Inventor
陈林
张晓广
韦仕持
Original Assignee
三一汽车起重机械有限公司
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.)
Filing date
Publication date
Application filed by 三一汽车起重机械有限公司 filed Critical 三一汽车起重机械有限公司
Publication of WO2015090109A1 publication Critical patent/WO2015090109A1/zh

Links

Images

Classifications

    • 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
    • B66C23/82—Luffing gear
    • 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
    • B66C23/66—Outer or upper end constructions

Definitions

  • the present disclosure relates to the field of crane technology, and in particular to a jib luffing device, a crane and a jib framing method.
  • Cranes typically include a main boom and a secondary boom.
  • the secondary boom generally has a variable amplitude function.
  • the mechanical luffing is an artificial initial setting of the jib of the jib, and the main jib can only perform the manual luffing operation of the sub-boom after being retracted.
  • the advantage of this luffing method is that the cost is lower, but the problem is that the operation is troublesome.
  • the automatic variable width is automatically adjusted by the hydraulic cylinder disposed between the jib fixed truss arm and the variable truss arm. The advantage is that the operation is convenient, labor-saving and time-saving, but the problem is high cost.
  • the present disclosure proposes a jib luffing device, a crane and a jib luffing method to facilitate the luffing operation of the sub-crane arm and reduce the cost.
  • the present disclosure discloses a jib luffing device for a luffing operation of a crane jib, comprising: a fixed truss arm of the jib, a jib arm of the jib, and a luffing pulley mechanism; Wherein the fixed truss arm is disposed at a head of the crane main boom; the variator truss arm is hinged with the fixed truss arm; and the variator pulley mechanism includes a first sliding hinged with the fixed truss arm a wheel, and a second pulley hingedly coupled to the yoke arm; when the jib is subjected to a slewing operation using the slewing pulley mechanism, the slewing hoisting wire is wound around the slewing pulley mechanism On the first pulley and the second pulley.
  • variable hoisting wire rope is a main hoisting wire rope or a sub-winding steel wire rope.
  • the jib lapping device further includes: a sprocket assembly; the sprocket assembly includes a over sprocket and a sprocket; the strop is hinged to the strop The variable hoisting wire rope is wound onto the slewing pulley mechanism via the sprocket wheel.
  • the over-the-rope carrier includes a first carrier body and a second carrier body, and the second carrier body is coupled to the middle of the first carrier body And a certain angle between the first wheel frame body and the second wheel frame body.
  • the first pulley includes a plurality of first wheel bodies disposed side by side
  • the second pulley includes a plurality of second wheel bodies disposed side by side; the first wheel body and the second wheel The axes of the bodies are parallel.
  • the jib luffing device further includes a limiting unit disposed on both sides of the slewing pulley mechanism and configured to mechanically limit the limit position of the auxiliary jib.
  • the limiting unit in the jib luffing device is a limit pull plate assembly.
  • the limit pull plate assembly includes a first pull plate and a second pull plate, and the first pull plate is slidable relative to the second pull plate; Changing the amplitude of the auxiliary boom relative to the sliding of the second pulling plate, and after the auxiliary lifting arm reaches a given position, connecting the first pulling by pin positioning a plate and the second pull plate.
  • the present disclosure also discloses a crane provided with the jib luffing device of any of the above.
  • the present disclosure also discloses a jib amplitude sizing method, which is based on the above-described jib luffing device, and performs a sub-boom sag action by retracting and displacing the hoisting wire rope.
  • FIG. 1 is a schematic structural view of an embodiment of a secondary crane arm luffing device in the present disclosure
  • Figure 2 is a perspective view showing the embodiment of the auxiliary crane arm luffing device shown in Figure 1;
  • Fig. 3 is a schematic view showing the state of the sub-crane arm in a variable amplitude state in the case of employing the embodiment of the sub-crane arm luffing device of the present disclosure.
  • the jib luffing device of the present embodiment is used for the slewing operation of the sub-crane arm 10, and includes a fixed truss arm 7A of the jib, a yoke arm 7B of the jib, and a slewing pulley mechanism 11.
  • the fixed truss arm 7A is disposed on the head of the crane main boom, and the variable truss arm 7B is hinged to the fixed truss arm 7A through the pin; the first pulley and the second pulley in the variator pulley mechanism 11 are respectively fixed to the truss
  • the arm 7A is hinged to the yoke arm 7B; when the jib mechanism 10 is used for the slewing operation of the sub jib 10, the swelled hoisting rope 2 is wound around the slewing pulley mechanism.
  • the variable amplitude hoisting wire rope 2 may be a main hoisting wire rope or a secondary hoisting wire rope. As shown in FIG. 1, when the auxiliary boom 10 is in the auxiliary state, the idle hoisting wire rope 2 is used to wind the rope and provide the auxiliary power of the auxiliary boom 10, and the hoisting wire rope 1 is hoisted. .
  • the luffing pulley mechanism 11 includes: a first pulley and a second pulley disposed in parallel, each set of pulleys including a single or a plurality of variable amplitude pulleys, wherein the first pulley is hinged to the fixed truss arm 7A, the second pulley Hinged to the yoke arm 7B.
  • the first pulley comprises a plurality of first wheel bodies arranged side by side (ie, the axes of the respective first wheel bodies coincide), and the second pulley comprises a plurality of second wheel bodies arranged side by side (ie, the second wheel bodies of the respective second wheel bodies)
  • the axis is coincident
  • the axes of the first wheel body and the second wheel body are parallel
  • the variable amplitude hoisting wire rope 2 is sequentially wound around each of the first wheel body and the second wheel body.
  • the first pulley, the second pulley, and the variable hoisting rope 2 correspond to the formation of the pulley block, and by providing the number of the first wheel bodies and the number of the second wheel bodies, different labor-saving magnifications can be realized.
  • the jib lapping device further includes a over sheave assembly; the over sheave assembly includes a over sheave 8 and a over sheave 9; the over sheave 9 is disposed on the over sheave 8;
  • the wire rope 2 is wound around the first pulley and the second pulley of the luffing pulley of the luffing pulley mechanism 11 via the sheave 9 .
  • the cross-rope frame 8 may be in a herringbone shape, that is, the over-the-rope frame comprises a first wheel frame body and a second wheel frame body, and the second wheel frame body is connected to the middle of the first wheel frame body, and the two are fixed between the two Angle.
  • the jib luffing device further includes a limiting unit disposed on both sides of the luffing pulley mechanism and configured to mechanically limit the limit position of the sub-boom 10, ie
  • the jib mechanical luffing mechanism known in the prior art eliminates the positioning of the pin at 20° position so that the jib can freely vary from 0° to 40°.
  • the limiting unit may be a limiting pull plate assembly, and the limiting pull plate assembly comprises a first pull plate 3 and a second pull plate 4, the first pull plate 3 is slidable relative to the second pull plate 4; During the sliding of the second pull plate 4, the amplitude of the auxiliary boom 10 is changed, and after the auxiliary boom 10 reaches a given position, the pin 5 is positioned and connected.
  • variable pulley mechanism 11 can realize the wire rope combination of different magnifications through the pulley block to reduce the wire rope pulling force; the limit pull plate assembly can perform the mechanical limit of 0° and 40° on the auxiliary boom 10 to avoid the auxiliary boom 10 Receive or over discharge.
  • the sub-boom 10 When the main boom is extended, the sub-boom 10 is at an angle of 0° by tightening the variable hoisting rope 2 (Fig. 1), and the main boom is extended to drive the variable hoisting rope 2 Rope; when the main boom is retracted, the hoisting and hoisting synchronously tightens the wire rope, and the main boom is retracted by the combination of the main boom and the variable hoisting wire rope 2.
  • the sub-boom 10 When the sub-boom 10 is in operation, the sub-boom 10 is swung by the retracting and hoisting wire 2, as shown in FIG.
  • the auxiliary boom 10 When the auxiliary boom 10 is operated at an angle of 40°, the working load is carried by the limit pull plate assembly, and the variable hoisting wire rope 2 is unstressed and in a relatively relaxed state.
  • the angle change of the auxiliary boom 0°, 20°, 40° can be manually realized by the limit pull plate assembly, and the limit pull plate assembly and the universal The mechanical luffing mechanism is similar.
  • the embodiment of the jib luffing device of the present disclosure utilizes a pulley mechanism for luffing, combined with a main hoisting wire rope or a sub-winding wire rope as a wire rope for sizing; it can realize automatic variability of the working state of the jib of the crane, saving time and labor No additional electrical or hydraulic equipment is required to save costs.
  • the hoisting wire rope is synchronously recovered, and the auxiliary arm can be assisted. Reduce the pressure load on the main arm retractor cylinder. This is because when the main boom is extended, the hoisting rope can be driven to release the rope; when the main boom is retracted, the jib of the auxiliary boom is hoisted to simultaneously tighten the wire rope, and the main boom is retracted.
  • the cylinder and the variable amplitude hoisting wire rope work together to achieve the retraction of the main boom.
  • due to the limited pulling force of the hoisting wire rope generally no more than 15 tons, the main boom and the auxiliary boom structure are not damaged, thereby simplifying the operation procedure of the telescopic arm, and the operation is simple, convenient and practical.
  • the jib luffing device may be replaced with a hydraulic ram; the hydraulic ram is also disposed between the fixed truss arm and the luffing truss arm.
  • variable amplitude pulley mechanism 11 can be disassembled and replaced with a hydraulic oil cylinder, and a hydraulic oil delivery reel can be installed on the auxiliary arm.
  • a hydraulic oil delivery reel can be installed on the auxiliary arm.
  • the auxiliary arm luffing device of the present embodiment can be interchanged with the hydraulic oil cylinder for convenient selection and configuration.
  • the jib luffing device of the present disclosure can realize the interchange and matching of the conventional mechanical luffing, the hydraulic cylinder automatic luffing and the hoisting wire rope automatic luffing.
  • the present disclosure also discloses a crane provided with the jib luffing device of any of the above. Since the crane includes the above-described jib luffing device, it also has the technical effect that the jib luffing device should have. I will not repeat them.
  • the present disclosure also discloses a jib amplitude sizing method, which is based on the above-described jib luffing device, and performs a sub-boom sag operation by retracting the slanted hoisting wire 2 .
  • the luffing wire rope 2 may be wound around the luffing pulley mechanism 11, and the luffing operation of the sub-boom 10 may be realized by controlling the retracting of the luffing wire rope 2.
  • the jib luffing device, the crane and the jib luffing method provided by the present disclosure using the variable amplitude pulley
  • the mechanism combined with the variable amplitude hoisting wire rope, can realize the automatic amplitude change of the working state of the crane jib, saving time and labor; no additional electrical or hydraulic equipment is needed, and the cost is saved, for example, compared with the hydraulic cylinder of the prior art.
  • the frame mechanism can save the cost of one cylinder, one hose reel and related hydraulic accessories; and the hoisting wire rope is synchronously recovered when the main arm is retracted, which can play the role of auxiliary retracting arm and reduce the pressure of the main arm retracting arm cylinder load. Therefore, the jib luffing device, the crane and the jib luffing method of the present disclosure have industrial applicability.

Landscapes

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

Abstract

公开了一种副臂变幅装置、起重机及副臂变幅方法，其中副臂变幅装置包括：固定桁架臂（7A）、变幅桁架臂（7B）和变幅滑轮机构（11）；固定桁架臂（7A）设置于起重机主起重臂的头部，变幅桁架臂（7B）与固定桁架臂（7A）铰接，变幅滑轮机构（11）包括与固定桁架臂（7A）铰接的第一滑轮，和与变幅桁架臂（7B）铰接的第二滑轮，在使用变幅滑轮机构（11）对副起重臂（10）进行变幅操作时，变幅卷扬钢丝绳绕于变幅滑轮机构（11）上。该技术方案利用变幅用滑轮机构（11）结合作为变幅用钢丝绳的主卷扬钢丝绳或副卷扬钢丝绳，可以实现对起重机副臂作业状态的自动变幅，省时省力，不需增加额外的电气或液压设备，节约成本；并且，主臂缩臂时卷扬钢丝绳同步回收，可以起到辅助缩臂的作用，降低主臂缩臂油缸的压力负荷。

Description

副臂变幅装置、起重机及副臂变幅方法
本申请要求于2013年12月17日提交中国专利局、申请号为201310693620.3、发明名称为“副臂变幅装置、起重机及副臂变幅方法”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。
技术领域
本披露涉及起重机技术领域，特别涉及一种副臂变幅装置、起重机及副臂变幅方法。
背景技术
起重机一般包含主起重臂和副起重臂。副起重臂一般具备变幅功能。
一般而言，变幅功能的实现主要有两种方式：机械变幅和自动变幅。其中，机械变幅是靠机械装置人为的设定副臂的初始角度，并且，主起重臂只有收回后才能进行副起重臂的人工变幅操作。这种变幅方式的好处是成本较低，但问题是，操作比较麻烦。自动变幅是靠设置于副臂固定桁架臂以及变幅桁架臂之间的液压油缸自动的进行副臂的角度调整，好处是操作方便，省力省时，但存在的问题是成本较高。
发明内容
有鉴于此，本披露提出一种副臂变幅装置、起重机及副臂变幅方法，以方便副起重机臂的变幅操作，并且降低成本。
第一方面，本披露公开了一种副臂变幅装置，用于起重机副起重臂的变幅操作，包括：副臂的固定桁架臂、副臂的变幅桁架臂和变幅滑轮机构；其中，所述固定桁架臂设置于起重机主起重臂的头部；所述变幅桁架臂与固定桁架臂铰接；所述变幅滑轮机构包括与所述固定桁架臂铰接的第一滑 轮，和与所述变幅桁架臂铰接的第二滑轮；在使用所述变幅滑轮机构对所述副起重臂进行变幅操作时，变幅卷扬钢丝绳绕于所述变幅滑轮机构的第一滑轮和第二滑轮上。
在一些实施例中，上述副臂变幅装置中，所述变幅卷扬钢丝绳为主卷扬钢丝绳或副卷扬钢丝绳。
在一些实施例中，上述副臂变幅装置还包括：过绳轮组件；所述过绳轮组件包括过绳轮架和过绳轮；所述过绳轮铰接于所述过绳轮架上；所述变幅卷扬钢丝绳经由所述过绳轮绕到所述变幅滑轮机构上。
在一些实施例中，上述副臂变幅装置中，所述过绳轮架包括第一轮架体和第二轮架体，所述第二轮架体连接于所述第一轮架体中部，且所述第一轮架体和第二轮架体之间呈一定夹角。
在一些实施例中，所述第一滑轮包括多个并排设置的第一轮体，所述第二滑轮包括多个并排设置的第二轮体；所述第一轮体和所述第二轮体的轴线相平行。
在一些实施例中，上述副臂变幅装置还包括限位单元，设置于所述变幅滑轮机构的两侧，配设为对副起重臂的极限位置进行机械限位。
在一些实施例中，上述副臂变幅装置中所述限位单元为限位拉板组件。
在一些实施例中，上述副臂变幅装置中，所述限位拉板组件包括第一拉板和第二拉板，所述第一拉板相对所述第二拉板可滑动；通过所述第一拉板相对于所述第二拉板的滑动，改变所述副起重臂的幅度，并在所述副起重臂达到给定位置后，通过销轴定位连接所述第一拉板及所述第二拉板。
第二方面，本披露还公开了一种起重机，设置有上述任一项所述的副臂变幅装置。
第三方面，本披露还公开了一种副臂变幅方法，该方法基于上述的副臂变幅装置，通过所述变幅卷扬钢丝绳的收放进行副起重臂变幅动作。
附图说明
构成本披露的一部分的附图用来提供对本披露的进一步理解，本披露的示意性实施例及其说明用于解释本披露，并不构成对本披露的不当限定。在附图中：
图1为本披露中副起重机臂变幅装置实施例的结构示意图；
图2为图1所示的副起重机臂变幅装置实施例的立体结构示意图；
图3为采用本披露中副起重机臂变幅装置实施例的情况下，处于变幅状态的副起重机臂的状态示意图。
附图标记说明
1   吊装卷扬钢丝绳
2   变幅卷扬钢丝绳
3   第一拉板
4   第二拉板
5   销轴
7A  副臂的固定桁架臂
7B  副臂的变幅桁架臂
8   过绳轮架
9   过绳轮
10  副起重臂
11  变幅滑轮机构
具体实施方式
需要说明的是，在不冲突的情况下，本披露中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本披露。
下面，结合图1至图3，对本披露的副臂变幅装置的优选实施例做进一 步地详细说明。
本实施例的副臂变幅装置用于副起重机臂10的变幅操作，包括副臂的固定桁架臂7A、副臂的变幅桁架臂7B和变幅滑轮机构11。其中，固定桁架臂7A设置于起重机主起重臂的头部，变幅桁架臂7B通过销轴与固定桁架臂7A铰接；变幅滑轮机构11中的第一滑轮和第二滑轮分别与固定桁架臂7A和变幅桁架臂7B相铰接；在使用变幅滑轮机构11对副起重臂10进行变幅操作时，变幅卷扬钢丝绳2绕于变幅滑轮机构上。优选地，变幅卷扬钢丝绳2可以为主卷扬钢丝绳或副卷扬钢丝绳。如图1所示，副起重臂10工作状态使用副卷扬时，由空闲的变幅卷扬钢丝绳2来绕绳并提供副起重臂10变角度动力，吊装卷扬钢丝绳1进行吊装作业。
在本实施例中，变幅滑轮机构11包括：平行设置的第一滑轮和第二滑轮，每组滑轮包括单个或多个变幅滑轮，其中第一滑轮铰接于固定桁架臂7A，第二滑轮铰接于变幅桁架臂7B。进一步地，第一滑轮包括多个并排设置的第一轮体(即各第一轮体的轴线相重合)，第二滑轮包括多个并排设置的第二轮体(即各第二轮体的轴线相重合)，第一轮体和第二轮体的轴线相平行，变幅卷扬钢丝绳2依次绕设过各第一轮体、第二轮体。这样，第一滑轮、第二滑轮和变幅卷扬钢丝绳2相当于形成了滑轮组，通过设置第一轮体的个数、第二轮体的个数，可以实现不同的省力倍率。
进一步地，上述的副臂变幅装置还包括过绳轮组件；过绳轮组件包括过绳轮架8和过绳轮9；过绳轮9设置于过绳轮架8上；变幅卷扬钢丝绳2经由过绳轮9绕到变幅滑轮机构11的变幅滑轮的第一滑轮和第二滑轮上。过绳轮架8可以呈人字形，即该过绳轮架包括第一轮架体和第二轮架体，第二轮架体连接于第一轮架体中部，且二者之间呈一定夹角。
进一步优选地，副臂变幅装置还包括限位单元，该限位单元设置于变幅用滑轮机构的两侧，配设为对副起重臂10的极限位置进行机械限位，即 现有技术中所公知的副臂机械式变幅机构，取消20°位置销轴的定位，使副臂可以在0°～40°自由变幅。
限位单元可以为限位拉板组件，限位拉板组件包括第一拉板3和第二拉板4，第一拉板3相对第二拉板4可滑动；通过第一拉板3相对于第二拉板4的滑动，改变副起重臂10的幅度，并在副起重臂10达到给定位置后，通过销轴5定位连接。
下面，再结合图1至图3对本披露的副臂变幅装置的实施例的工作原理做进一步地说明。
变幅滑轮机构11通过滑轮组可以实现不同倍率的钢丝绳组合，以降低钢丝绳拉力；限位拉板组件可以对副起重臂10进行0°及40°的机械限位，避免副起重臂10过收或过放。
当主起重臂进行伸臂时，通过收紧变幅卷扬钢丝绳2使副起重臂10处于0°角度状态(如图1)，主起重臂伸臂，带动变幅卷扬钢丝绳2放绳；当主起重臂缩臂时，变幅卷扬同步收紧钢丝绳，在主起重臂缩臂油缸和变幅卷扬钢丝绳2共同作用下，实现主起重臂的回缩。
副起重臂10作业时，通过变幅卷扬钢丝绳2的收放实现副起重臂10变幅动作，如图3。在副起重臂10处于40°角度工作时，由限位拉板组件承载作业载荷，变幅卷扬钢丝绳2不受力，处于相对松弛状态。
特殊的，当不需要副起重臂10变幅装置时，可以通过限位拉板组件手动实现副起重臂0°、20°、40°的角度变化，该限位拉板组件与通用的机械变幅机构类似。
本披露的副臂变幅装置实施例利用变幅用滑轮机构，结合作为变幅用钢丝绳的主卷扬钢丝绳或副卷扬钢丝绳；可以实现对起重机副臂作业状态的自动变幅，省时省力；不需增加额外的电气或液压设备，节约成本。
并且，主臂缩臂时卷扬钢丝绳同步回收，可以起到辅助缩臂的作用， 降低主臂缩臂油缸的压力负荷。这是因为：当主起重臂进行伸臂时，可以带动卷扬钢丝绳放绳；当主起重臂缩臂时，副起重臂的变幅卷扬同步收紧钢丝绳，在主起重臂缩臂油缸和变幅卷扬钢丝绳共同作用下，实现主起重臂的回缩。这时，由于卷扬钢丝绳的拉力有限，一般不超过15吨，对主起重臂及副起重臂结构不会造成破坏，因而简化了伸缩臂操作程序，使操作简单、方便、实用。
进一步优选地，上述副臂变幅装置还可以更换为液压油缸；该液压油缸也设置于所述固定桁架臂和所述变幅桁架臂之间。
具体实施时，可以将变幅滑轮机构11拆卸，更换为液压油缸，在副臂安装液压输油卷筒，这样，本实施例的副臂变幅装置可以和液压油缸互换，方便选择配置。
可以看出，本披露的副臂变幅装置可以实现传统的机械变幅、液压油缸自动变幅和卷扬钢丝绳自动变幅的互换和选配。
第二方面，本披露还公开了一种起重机，设置有上述任一项所述的副臂变幅装置。由于起重机包括上述的副臂变幅装置，因此，也具有副臂变幅装置应具有的技术效果。兹不赘述。
第三方面，本披露还公开了一种副臂变幅方法，该方法基于上述的副臂变幅装置，通过所述变幅卷扬钢丝绳2的收放进行副起重臂变幅动作。具体而言，可以是将变幅钢丝绳2绕于变幅滑轮机构11上，通过控制变幅钢丝绳2的收放实现副起重臂10的变幅动作。
以上所述仅为本披露的较佳实施例而已，并不用以限制本披露，凡在本披露的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本披露的保护范围之内。
工业实用性
本披露提供的副臂变幅装置、起重机及副臂变幅方法，利用变幅滑轮 机构，结合变幅卷扬钢丝绳，可以实现对起重机副臂作业状态的自动变幅，省时省力；不需增加额外的电气或液压设备，节约成本例如，相对现有技术中的液压油缸自动变幅机构，可节约一根油缸、一个胶管卷筒及相关液压附件的费用；并且，主臂缩臂时卷扬钢丝绳同步回收，可以起到辅助缩臂的作用，降低主臂缩臂油缸的压力负荷。因此，本披露的副臂变幅装置、起重机及副臂变幅方法具有工业实用性。

Claims (10)

  1. 一种副臂变幅装置，用于起重机副起重臂的变幅操作，其特征在于，包括：
    副臂的固定桁架臂(7A)、副臂的变幅桁架臂(7B)和变幅滑轮机构(11)；其中，
    所述固定桁架臂(7A)设置于起重机主起重臂的头部；
    所述变幅桁架臂(7B)与固定桁架臂(7A)铰接；
    所述变幅滑轮机构(11)包括与所述固定桁架臂(7A)铰接的第一滑轮，和与所述变幅桁架臂(7B)铰接的第二滑轮；
    在使用所述变幅滑轮机构(11)对所述副起重臂(10)进行变幅操作时，变幅卷扬钢丝绳(2)绕于所述变幅滑轮机构(11)的第一滑轮和第二滑轮上。
  2. 根据权利要求1所述的副臂变幅装置，其特征在于，
    所述变幅卷扬钢丝绳(2)为主卷扬钢丝绳或副卷扬钢丝绳。
  3. 根据权利要求1所述的副臂变幅装置，其特征在于，还包括：
    过绳轮组件；
    所述过绳轮组件包括过绳轮架(8)和过绳轮(9)；
    所述过绳轮(9)铰接于所述过绳轮架(8)上；
    所述变幅卷扬钢丝绳(2)经由所述过绳轮(9)绕到所述变幅滑轮机构(11)上。
  4. 根据权利要求3所述的副臂变幅装置，其特征在于，
    所述过绳轮(9)架包括第一轮架体和第二轮架体，所述第二轮架体连 接于所述第一轮架体中部，且所述第一轮架体和第二轮架体之间呈一定夹角。
  5. 根据权利要求1所述的副臂变幅装置，其特征在于，
    所述第一滑轮包括多个并排设置的第一轮体，所述第二滑轮包括多个并排设置的第二轮体；所述第一轮体和所述第二轮体的轴线相平行。
  6. 根据权利要求1至5中任一项所述的副臂变幅装置，其特征在于，还包括：
    限位单元，设置于所述变幅滑轮机构(11)的两侧，配设为对副起重臂(10)的极限位置进行机械限位。
  7. 根据权利要求6所述的副臂变幅装置，其特征在于，
    所述限位单元为限位拉板组件。
  8. 根据权利要求7所述的副臂变幅装置，其特征在于，
    所述限位拉板组件包括第一拉板(3)和第二拉板(4)，所述第一拉板(3)相对所述第二拉板(4)可滑动；通过所述第一拉板(3)相对于所述第二拉板(4)的滑动，改变所述副起重臂(10)的幅度，并在所述副起重臂(10)达到给定位置后，通过销轴(5)定位连接所述第一拉板(3)及所述第二拉板(4)。
  9. 一种起重机，其特征在于，设置有如权利要求1至8中任一项所述的副臂变幅装置。
  10. 一种副臂变幅方法，其特征在于，该方法基于如权利要求1至8 中任一项副臂变幅装置，通过所述变幅卷扬钢丝绳(2)的收放进行副起重臂(10)变幅动作。
PCT/CN2014/089026 2013-12-17 2014-10-21 副臂变幅装置、起重机及副臂变幅方法 WO2015090109A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310693620.3A CN103626058B (zh) 2013-12-17 2013-12-17 副臂变幅装置、起重机及副臂变幅方法
CN201310693620.3 2013-12-17

Publications (1)

Publication Number Publication Date
WO2015090109A1 true WO2015090109A1 (zh) 2015-06-25

Family

ID=50207571

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/089026 WO2015090109A1 (zh) 2013-12-17 2014-10-21 副臂变幅装置、起重机及副臂变幅方法

Country Status (2)

Country Link
CN (1) CN103626058B (zh)
WO (1) WO2015090109A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109809310A (zh) * 2018-12-24 2019-05-28 科曼萨建设机械（杭州）有限公司 一种动臂塔机拉杆及其安装方法
CN110526138A (zh) * 2019-07-31 2019-12-03 中铁九桥工程有限公司 一种变幅式架梁起重机
CN113135511A (zh) * 2021-04-29 2021-07-20 徐州重型机械有限公司 主臂、起重机以及起重机的副臂收放方法
CN116891123A (zh) * 2023-09-11 2023-10-17 山西建投建筑产业有限公司 一种板材输送半自动式搬运设备

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103626058B (zh) * 2013-12-17 2016-02-24 三一汽车起重机械有限公司 副臂变幅装置、起重机及副臂变幅方法
CN104528556A (zh) * 2014-12-31 2015-04-22 徐州重型机械有限公司 第三支架自动收放装置以及起重机
CN105060143B (zh) * 2015-07-14 2017-03-29 三一汽车起重机械有限公司 一种起重机臂架机构及起重机
CN106241628A (zh) * 2016-08-25 2016-12-21 徐州重型机械有限公司 桁架臂结构及起重机
CN106672824B (zh) * 2016-12-22 2018-04-13 中联重科股份有限公司 过绳滑轮组件和工程机械
CN109368515A (zh) * 2018-11-12 2019-02-22 三汽车起重机械有限公司 副臂变幅装置、副臂装置及起重机
CN109534191A (zh) * 2018-12-11 2019-03-29 中联重科股份有限公司 起重机的副臂、臂架以及起重机
CN111137796A (zh) * 2019-12-12 2020-05-12 徐州重型机械有限公司 一种新型臂架起重机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1378740A (en) * 1966-03-25 1974-12-27 Secr Defence Load handling mechanism
EP0443353B1 (de) * 1990-02-17 1994-07-27 Fried. Krupp AG Hoesch-Krupp Fahrzeugteleskopkran
CN2249232Y (zh) * 1996-01-31 1997-03-12 徐州工程机械集团有限公司 起重机可变幅超长副臂装置
CN201473227U (zh) * 2009-05-26 2010-05-19 徐州重型机械有限公司 用于起重机的副起重臂
CN103626058A (zh) * 2013-12-17 2014-03-12 三一汽车起重机械有限公司 副臂变幅装置、起重机及副臂变幅方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325018A (en) * 1965-10-22 1967-06-13 Pacific Coast Eng Co Articulating crane
JP4653460B2 (ja) * 2004-11-12 2011-03-16 Ｉｈｉ運搬機械株式会社 クレーンの起伏緩衝装置
CN101898728B (zh) * 2009-05-26 2012-01-04 徐州重型机械有限公司 用于起重机的副起重臂
CN102358581B (zh) * 2011-09-14 2013-02-13 哈尔滨东建机械制造有限公司 单绳三段式水平吊臂翻折缓冲自锁装置
CN102718156B (zh) * 2012-06-29 2014-05-21 三一重工股份有限公司 起重机臂架***及起重机
CN103318785B (zh) * 2013-07-08 2015-06-17 徐州重型机械有限公司 一种起重机及其固定副臂变幅装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1378740A (en) * 1966-03-25 1974-12-27 Secr Defence Load handling mechanism
EP0443353B1 (de) * 1990-02-17 1994-07-27 Fried. Krupp AG Hoesch-Krupp Fahrzeugteleskopkran
CN2249232Y (zh) * 1996-01-31 1997-03-12 徐州工程机械集团有限公司 起重机可变幅超长副臂装置
CN201473227U (zh) * 2009-05-26 2010-05-19 徐州重型机械有限公司 用于起重机的副起重臂
CN103626058A (zh) * 2013-12-17 2014-03-12 三一汽车起重机械有限公司 副臂变幅装置、起重机及副臂变幅方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109809310A (zh) * 2018-12-24 2019-05-28 科曼萨建设机械（杭州）有限公司 一种动臂塔机拉杆及其安装方法
CN109809310B (zh) * 2018-12-24 2024-06-11 科曼萨建设机械（杭州）有限公司 一种动臂塔机拉杆及其安装方法
CN110526138A (zh) * 2019-07-31 2019-12-03 中铁九桥工程有限公司 一种变幅式架梁起重机
CN113135511A (zh) * 2021-04-29 2021-07-20 徐州重型机械有限公司 主臂、起重机以及起重机的副臂收放方法
CN113135511B (zh) * 2021-04-29 2024-05-14 徐州重型机械有限公司 主臂、起重机以及起重机的副臂收放方法
CN116891123A (zh) * 2023-09-11 2023-10-17 山西建投建筑产业有限公司 一种板材输送半自动式搬运设备
CN116891123B (zh) * 2023-09-11 2023-11-28 山西建投建筑产业有限公司 一种板材输送半自动式搬运设备

Also Published As

Publication number Publication date
CN103626058A (zh) 2014-03-12
CN103626058B (zh) 2016-02-24

Similar Documents

Publication Publication Date Title
WO2015090109A1 (zh) 副臂变幅装置、起重机及副臂变幅方法
US8839966B2 (en) Folding jib main strut and transportable reeved strut caps
US9725285B2 (en) Method of raising a crane boom
CN102358580B (zh) 折叠臂架结构以及展开和折叠该折叠臂架结构的方法
US8127949B2 (en) Crane backstay spreader
US20120160795A1 (en) Counterweight loading and unloading device and movable crane
US8397924B2 (en) Drum frame system for cranes
EP2165964A2 (en) Mobile crane and method for erecting a crane boom
ATE473941T1 (de) Kran
ATE514650T1 (de) Auslegerhubvorrichtung für einen kran
US7878346B1 (en) Adaptable boom extension for a mobile crane having a telescoping boom
CN102674172B (zh) 超起装置及其张角控制装置、包含该超起装置的起重机
US10124993B2 (en) Method for operating a crane and crane
WO2011124122A1 (zh) 起重机的伸缩臂机构和起重机
CN112875488A (zh) 一种方便调节高度的电力设备吊装穿线操作杆
JP4912788B2 (ja) フライジブ付きラフィングジブ装置
JP3110704B2 (ja) クレーンのリヤポストペンダントロープ接続装置及びリヤポストペンダントロープ接続方法
CN105084226A (zh) 前拉紧机构、具有该前拉紧机构的超起装置及起重机
WO2023142235A1 (zh) 一种加压装置及旋挖钻机
CA2919767C (en) Luffing cross member
CN104326373A (zh) 一种主副钩门座式起重机
CN116040508B (zh) 一种绳排伸缩结构、伸缩臂起重机及其起重方法
CN214570143U (zh) 一种用于提升防喷器的吊车主臂装置及吊车装置
JP3110703B2 (ja) クレーンのリヤポストペンダントロープ接続装置及びリヤポストペンダントロープ接続方法
JPH09142781A (ja) クレーンのブーム起伏装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14871386

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14871386

Country of ref document: EP

Kind code of ref document: A1