WO2012088858A1 - Grue sur camion - Google Patents

Grue sur camion Download PDF

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Publication number
WO2012088858A1
WO2012088858A1 PCT/CN2011/076385 CN2011076385W WO2012088858A1 WO 2012088858 A1 WO2012088858 A1 WO 2012088858A1 CN 2011076385 W CN2011076385 W CN 2011076385W WO 2012088858 A1 WO2012088858 A1 WO 2012088858A1
Authority
WO
WIPO (PCT)
Prior art keywords
leg
swinging
truck crane
frame
swing
Prior art date
Application number
PCT/CN2011/076385
Other languages
English (en)
Chinese (zh)
Inventor
李安强
吴国锐
Original Assignee
湖南三一智能控制设备有限公司
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 湖南三一智能控制设备有限公司, 三一汽车起重机械有限公司 filed Critical 湖南三一智能控制设备有限公司
Publication of WO2012088858A1 publication Critical patent/WO2012088858A1/fr

Links

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
    • B66C23/72—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

Definitions

  • This invention relates to automotive cranes, and more particularly to improvements in the rear legs of automotive cranes. Background technique
  • FIG. 1 shows a schematic view of the structure of a conventional four-bridge truck crane.
  • the four-bridge truck crane includes a first bridge 2, a second bridge 3, a third bridge 5, and a fourth bridge 6, and a front leg 4 disposed at the second bridge 3, behind, and rear.
  • the leg 7, which is arranged at the fourth bridge 6, is provided with a fifth leg 1 in front of the first bridge 2 in order to increase front stability.
  • This type of leg is simpler in structure, easy to manufacture, and easy to install.
  • the rear suspension of the frame ie the rear frame of the center of rotation
  • the rear legs should be moved as far as possible to increase the rear legs.
  • the stability of the truck crane is improved.
  • the rear suspension portion of the frame is as short as possible, so that the rear suspension portion of the truck crane does not interfere with the slope when the vehicle is off the slope. .
  • the front and rear fixed leg boxes are used, and the rear leg span is determined by the installation position of the fixed leg box, and the tonnage of the four-bridge crane is increased to meet the requirements of the rear stability.
  • the rear leg span is increased, limited by the departure angle, and the rear leg cannot be moved too much, resulting in stability that does not meet the requirements.
  • the present invention provides a truck crane including a first swinging leg pivotally coupled to a rear frame of a swing center, a second swinging leg, and driving the first swinging leg and the second swinging leg.
  • the oscillating driving device wherein the first swinging leg and the second swinging leg have a cross-folding state at the rear of the vehicle.
  • the above drive device is a cylinder.
  • first swinging leg and the second swinging leg respectively have at least one movable leg and a telescopic device for driving at least one movable leg to expand and contract, wherein the last movable leg is provided with a vertical leg.
  • the rear frame of the rotating center has a dovetail shape, and the first swinging leg and the second swinging leg are located on the left and right sides of the dovetail bottom edge.
  • first swinging leg and the second swinging leg are staggered in the height direction of the truck crane.
  • the above-described truck crane includes four axles, and a front leg is provided at the rear of the second bridge. Further, the front leg is a fixed leg or a swing leg.
  • each of the swinging legs that overlaps with the frame and a portion of the frame that overlaps with the swinging leg are a box structure, wherein the pivoting shaft of each of the swinging legs and the frame is a hollow shaft .
  • the invention Compared with the prior art, the invention has the following advantages: 1.
  • the rear suspension is short in the driving state, the structure is compact, and the weight is lighter; 2.
  • the longitudinal distance of the front and rear support points on the rear section of the frame during working state is 10,000 Compared with the same span, the corresponding distance of the ' ⁇ ' type combination telescopic legs is much smaller, which enhances the strength of the rear section of the frame; 3.
  • the span can be increased to improve the stability of the truck crane.
  • Figure 1 shows a schematic structural view of a prior art four-bridge truck crane
  • 2 is a schematic view showing the layout of a rear swinging leg of a four-bridge truck crane according to a preferred embodiment of the present invention, wherein the rear swinging leg is in a cross-folding state
  • Figure 3 shows a side view of the frame shown in Figure 2;
  • Figure 4 is a schematic view showing the rear swinging leg of the frame shown in Figure 2 in a figure-eight unfolded state
  • Figure 5 shows a side view of the frame of Figure 4.
  • FIGS. 2 to 5 are schematic views showing the layout of an automobile crane having a rear swinging leg according to a preferred embodiment of the present invention.
  • the second swinging leg performs a swinging cylinder 6, and the first swinging leg 3 and the second swinging leg 4 are in a cross-folding state during transportation, and are in a figure-eight unfolded state during the working time.
  • the rear frame part is called the rear part of the frame, and the rear suspension part refers to the distance from the last bridge to the rearmost end of the frame.
  • the problem of insufficient stability of the frame is solved by changing the rear leg to the retractable swinging leg, and at the same time, the fixed leg case directly reduces the weight of the frame and solves the departure. Insufficient angles and other issues.
  • the rear swinging leg When the rear swinging leg is retracted, it is turned back, which is beneficial to shorten the distance between the rear section of the frame and the center of rotation, thereby improving its strength.
  • the swinging leg When the swinging leg is fully contracted into position, it is cross-shaped, which is beneficial to reduce the length of the backrest and increase the departure angle.
  • first swinging leg 3 and the second swinging leg 4 are cross-folded in the transport time course, and the first swinging leg 3 and the second swinging leg 4 are arranged in a staggered manner in the height direction of the truck crane.
  • the frame portion pivotally connected to the first swinging leg 3 is arranged to move up and down, and when transporting, the first swinging leg 3 is oriented in the height direction with respect to the second swinging branch.
  • the driving means for driving the first swinging leg and the second swinging leg to swing are the cylinder 5 and the cylinder 6.
  • the swinging leg can effect the swinging and folding of the first and second swinging legs by means of a gear to drive the ring gear.
  • a ring gear is respectively disposed on the first swinging leg and the second swinging leg and is meshed with the same driving gear, and the driving gear can be automatically driven or manually driven by a driving device such as a hydraulic motor or a motor.
  • the first swing leg 3 includes a swinging leg box 31 and a movable leg 32 in the swing leg box and a cylinder (not shown) that drives the movable leg to retract and is mounted A vertical leg 33 on the movable leg 32.
  • the second swinging leg 4 includes a swinging leg box 41 and a movable leg 42 in the swinging leg box and a cylinder (not shown) that expands and contracts the movable leg 42 and a vertical mounted on the movable leg 42 Leg 43.
  • the first swinging leg 3 and the second swinging leg 4 may have two active legs.
  • the telescopic device that drives the movable leg 42 to expand and contract may adopt an existing fixed branch. The driving method of the cylinder and the rope row on the leg.
  • the rear frame 2 of the swing center 1 has a dovetail shape, and the left and right sides of the bottom side of the dovetail rear frame are provided with a pivotal connection between the first swinging leg 3 and the second swinging leg 4. Mounting seat.
  • the rear frame of the swivel center 1 may also have a T-shape or other shape that facilitates mounting the first swing leg 3 and the second swing leg 4 at a distance.
  • the dovetail-shaped rear frame 2 easily meets the following design requirements: the installation position of the pivoting shaft of the rear swinging leg is determined to meet the longitudinal and span distance of the crane and the leg width of the leg after retraction, and also to ensure The rear suspension cannot be too long, and the departure angle meets the design requirements.
  • the truck crane comprises four axles, namely a first bridge 7, a second bridge 8, a third bridge 9 and a fourth bridge 10, wherein a rear portion of the second bridge 8 is provided
  • the front leg 11 is a fixed leg.
  • the front leg 9 can also be a swinging leg.
  • the portion of each of the swinging legs 3, 4 that overlaps with the frame and the portion of the rear frame 2 of the center of rotation 1 that overlaps the swinging legs are box structures to improve The local strength, wherein the pivoting shafts 12 of each of the swinging legs and the frame are hollow shafts, facilitates installation and reduces weight.
  • the present invention obtains the following advantages:
  • the rear suspension is shorter when driving, the structure is compact, and the weight is lighter;
  • the longitudinal distances of the front and rear support points on the rear section of the frame are much smaller than the corresponding distances of the "H" type combined telescopic legs of the same span, thereby enhancing the strength of the rear section of the frame;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
  • Jib Cranes (AREA)

Abstract

Une grue sur camion comprend un premier pied de soutien oscillant (3) et un second pied de soutien oscillant (4) pivotant tous les deux sur le châssis de camion arrière (2) d'un centre rotatif (1), et des dispositifs d'entraînement destinés à entraîner l'oscillation du premier pied de soutien oscillant (3) et du second pied de soutien oscillant (4). Le premier pied de soutien oscillant (3) et le second pied de soutien oscillant (4) se trouvent à la queue du camion dans un état plié en croix ou dans un état déplié en forme de « 八 ». La grue sur camion a une suspension arrière plus courte, une structure compacte, un poids plus faible et une envergure accrue, de manière à améliorer la stabilité.
PCT/CN2011/076385 2010-12-28 2011-06-27 Grue sur camion WO2012088858A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010611746.8 2010-12-28
CN 201010611746 CN102001589A (zh) 2010-12-28 2010-12-28 汽车起重机

Publications (1)

Publication Number Publication Date
WO2012088858A1 true WO2012088858A1 (fr) 2012-07-05

Family

ID=43809341

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/076385 WO2012088858A1 (fr) 2010-12-28 2011-06-27 Grue sur camion

Country Status (2)

Country Link
CN (1) CN102001589A (fr)
WO (1) WO2012088858A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001589A (zh) * 2010-12-28 2011-04-06 三一汽车起重机械有限公司 汽车起重机
CN102343942A (zh) * 2011-06-16 2012-02-08 三一汽车起重机械有限公司 一种起重机及其车架
CN103303809B (zh) * 2013-06-26 2015-07-08 北京诚田恒业煤矿设备有限公司 一种煤矿井下用转塔式液压装卸机
CN103723198B (zh) * 2013-11-12 2016-08-17 徐州重型机械有限公司 一种轮式起重机及其车架结构
CN106276641B (zh) * 2016-08-31 2018-08-28 徐州重型机械有限公司 车架结构及起重机
CN109941880A (zh) * 2019-01-26 2019-06-28 安徽维尔力德工程机械有限公司 平行多立柱组合式自顶升起重机
CN110316039A (zh) * 2019-07-03 2019-10-11 中国船舶重工集团公司第七一三研究所 一种移动存储平台
CN111847284B (zh) * 2020-08-04 2022-07-12 三一汽车起重机械有限公司 一种起重机
CN111847236B (zh) * 2020-09-24 2021-01-26 湖南三一中型起重机械有限公司 支腿装置、起重机的底盘车架结构和起重机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029614A1 (fr) * 1997-12-09 1999-06-17 Köck, Elke Chassis pour dispositif de travail permettant un dechargement en un point eloigne, en particulier pour une grue de chantier elevee
CN201292227Y (zh) * 2008-11-19 2009-08-19 三一汽车制造有限公司 汽车起重机的前摆动支腿及有该前摆动支腿的汽车起重机
WO2009141193A1 (fr) * 2008-05-21 2009-11-26 Putzmeister Concrete Pumps Gmbh Engin de travail mobile à surveillance de la stabilité statique
CN201777806U (zh) * 2009-12-02 2011-03-30 三一汽车制造有限公司 一种起重机支腿组件以及应用该支腿组件的起重机
CN102001589A (zh) * 2010-12-28 2011-04-06 三一汽车起重机械有限公司 汽车起重机

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JP4763119B2 (ja) * 1999-08-04 2011-08-31 リープヘル−ヴェルク エーインゲン ゲーエムベーハー クローラー搭載式クレーン
DE10032622A1 (de) * 2000-07-07 2002-01-17 Putzmeister Ag Stützausleger für fahrbare Arbeitsmaschinen und Autobetonpumpen mit solchen Stützauslegern
CN201065308Y (zh) * 2007-04-29 2008-05-28 上海三一科技有限公司 履带起重机
DE102008032739B4 (de) * 2008-01-25 2021-10-21 Liebherr-Werk Ehingen Gmbh Mobilkran und Verfahren zur Montage
CN201619993U (zh) * 2010-03-26 2010-11-03 北京中冀福庆专用车有限公司 一种移动式微型起重机整体结构
CN201660381U (zh) * 2010-04-21 2010-12-01 东台市富康工程机械厂 高速铁路吊装专用车
CN202016815U (zh) * 2010-12-28 2011-10-26 三一汽车起重机械有限公司 汽车起重机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029614A1 (fr) * 1997-12-09 1999-06-17 Köck, Elke Chassis pour dispositif de travail permettant un dechargement en un point eloigne, en particulier pour une grue de chantier elevee
WO2009141193A1 (fr) * 2008-05-21 2009-11-26 Putzmeister Concrete Pumps Gmbh Engin de travail mobile à surveillance de la stabilité statique
CN201292227Y (zh) * 2008-11-19 2009-08-19 三一汽车制造有限公司 汽车起重机的前摆动支腿及有该前摆动支腿的汽车起重机
CN201777806U (zh) * 2009-12-02 2011-03-30 三一汽车制造有限公司 一种起重机支腿组件以及应用该支腿组件的起重机
CN102001589A (zh) * 2010-12-28 2011-04-06 三一汽车起重机械有限公司 汽车起重机

Also Published As

Publication number Publication date
CN102001589A (zh) 2011-04-06

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