WO2016119135A1 - 一种起重机械的移动式配重机构及起重机械 - Google Patents
一种起重机械的移动式配重机构及起重机械 Download PDFInfo
- Publication number
- WO2016119135A1 WO2016119135A1 PCT/CN2015/071686 CN2015071686W WO2016119135A1 WO 2016119135 A1 WO2016119135 A1 WO 2016119135A1 CN 2015071686 W CN2015071686 W CN 2015071686W WO 2016119135 A1 WO2016119135 A1 WO 2016119135A1
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- cylinder
- counterweight
- weight
- center
- hinged
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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
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
-
- 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
Definitions
- the invention relates to the field of engineering machinery, in particular to a mobile weighting mechanism and a lifting machine for a lifting machine.
- the stability of the whole machine is one of the key indicators affecting the hoisting performance of the hoisting machinery. Therefore, when designing the hoisting machinery, the weight of the counterweight is often increased to the limit that the axle can carry to maximize the stability of the whole machine. For large tonnage products, combined weights are often used to improve the hoisting performance of the lifting machinery.
- the true impact on the stability of the crane is the torque generated by the counterweight relative to the center of rotation.
- the weight of the counterweight is Q
- the distance between the center of gravity of the counterweight and the center of rotation is L.
- Combined counterweight limited by the crane load and safety considerations, the hoisting machinery only carries a small amount of counterweight or even no counterweight during driving or transition. After the vehicle is fixed in the hoisting work area, the weight is attached to the hoist by hydraulic cylinder or other means, and the lifting stability of the whole machine is improved by increasing the weight of the weight.
- the technical disadvantages of the combined weight scheme have the following two points: a. The counterweight requires additional transportation of the vehicle, and the lifting cost increases; b. the weight movement needs to be achieved by lifting. Mounting also increases the cost of lifting.
- Figure 1 shows the rail-type counterweight movement scheme.
- the solid line shows the driving (or transition state), and the dotted line shows the working state.
- the two guide rails A14 are respectively fixed on both sides of the bottom of the hoisting mechanical winding box A12, and the slider A13 is fixed on the counterweight A11.
- the counterweight also moves by the same distance D.
- the linkage type weighting movement scheme is shown in the solid line (or the transition state), and the broken line shows the working state.
- the two links A25 are arranged in parallel, the upper hinge point A23 is fixed to the winch box, the lower hinge point A24 is fixed to the counterweight A21, and the overall backward distance D of the counterweight A21 is realized by pushing the link lower hinge point A24 through the cylinder.
- the above-mentioned two kinds of mobile weights have the disadvantages of short moving distance (the moving distance of the rail type weight is subject to the rigidity of the guide rail, and the link type scheme is subject to the movement stability of the moving process).
- the weight of the vehicle itself is lighter. If the moving distance is short, the improvement effect on the stability of the whole vehicle is not significant, and the actual added value may not be obtained relative to the increased cost of the mobile weight.
- the object of the present invention is to provide a mobile weighting mechanism and a lifting device for a hoisting machine, which can improve the moving distance of the moving weight by flipping and improve the stability of the whole vehicle.
- the present invention provides a mobile weighting mechanism for a hoisting machine, comprising a support portion, a driving portion and a counterweight, the counterweight being hinged to the support portion by a first hinge portion, the drive portion being connected Between the support portion and the weight, the weight can be flipped outwardly about the first hinge portion relative to the center of rotation of the hoisting machine to increase the center of gravity of the weight and the The distance from the center of rotation of the hoisting machinery.
- the driving portion includes a driving cylinder, and a cylinder of the driving cylinder The end is hinged to the support portion by a second hinge portion, the piston rod end of the drive cylinder is hinged with the weight to enable the weight to be able to rotate relative to the lifting device around the first hinge portion
- the center of rotation is turned outwardly to increase the distance between the center of gravity of the counterweight and the center of rotation of the hoist.
- the driving portion further includes a follower cylinder, and a piston rod end of the driving cylinder is hinged with the counterweight through the following cylinder, at a starting position of the counterweight and a position after being turned over,
- the follower cylinder can lock the counterweight.
- the cylinder end of the following cylinder is hinged to the support portion through a third hinge portion, and the piston rod end of the follower cylinder is hinged to the weight through a fourth hinge portion; the drive cylinder The piston rod end is hinged to the cylinder of the follower cylinder through a fifth hinge.
- hydraulic cylinders of the drive cylinder and the following cylinder are independent of each other.
- the hydraulic control system of the following cylinder includes a fuel tank, a first pilot operated check valve, a second pilot operated check valve, and an electromagnetic on/off valve, wherein the rod chamber of the follower cylinder passes the first a pilot operated check valve is in communication with the fuel tank, the rodless cavity of the follower cylinder is in communication with the oil tank through the second pilot operated check valve; the electromagnetic on/off valve is connected in parallel with the fuel tank The rod-cavity of the following cylinder; the first pilot-operated check valve and the electromagnetic on-off valve enable locking of the slave cylinder.
- the support portion is a hoisting box of the hoisting machine.
- the support portion has an outer vertical surface
- the first hinge portion is located at a bottom end of the outer vertical surface so that the weight can be horizontally inverted about the first hinge portion by 180°.
- the present invention also provides a hoisting machine comprising the above-described mobile weight mechanism.
- the driving method of the invention realizes the horizontal flipping of the overall weight of the hoisting machinery and increases The distance of the counterweight relative to the center of rotation increases the stability of the machine.
- FIG. 1 is a schematic diagram of a prior art weight shifting mode.
- FIG. 2 is a schematic diagram of another weight shifting method of the prior art.
- FIG 3 is a schematic view of one embodiment of a mobile weight mechanism of the present invention.
- FIG. 4 is a schematic view of the weight of a specific embodiment of the mobile weight mechanism of the present invention after horizontal reversal.
- Fig. 5 is a hydraulic schematic diagram of a follower cylinder of an embodiment of the mobile weight mechanism of the present invention.
- a mobile weight mechanism of a hoisting machine which comprises a support portion 2, a driving portion and a counterweight 1.
- the support portion here may be a suitable position of the hoisting machine as long as the load of the counterweight can be achieved.
- the weight 1 is hinged to the support portion 2 by a first hinge portion 3, the drive portion being coupled between the support portion 2 and the weight 1, enabling the weight 1 to be wound around the first hinge
- the portion 3 is turned outward relative to the center of rotation of the hoisting machine to increase the distance between the center of gravity of the counterweight 1 and the center of rotation of the hoisting machine.
- Existing mobile counterweight technologies have shortcomings of short moving distance.
- the moving distance of the rail type counterweight is limited by the rigidity of the guide rail, and the link type scheme is subject to the motion stability of the moving process. If the moving distance is short, The improvement effect on the stability of the whole vehicle is not significant, and may not have actual use value relative to the increased cost of the mobile counterweight.
- the invention adopts a scheme of flipping the weight from the viewpoint of the movement of the center of gravity, and has the advantage of large moving distance.
- the driving portion includes a driving cylinder 4, and a cylinder end of the driving cylinder 4 is hinged to the supporting portion 2 via a second hinge portion 4', and a piston rod end of the driving cylinder 4 is
- the weight 1 is hinged such that the weight 1 can be turned outwardly about the first hinge 3 relative to the center of rotation of the hoisting machine to increase the center of gravity of the weight 1 with the The distance from the center of the hoisting machinery.
- the driving portion is not limited to the form of the cylinder, and any driving structure capable of realizing the counterweight to be turned outward can be employed.
- the drive portion further includes a follower cylinder 5, the piston rod end of the drive cylinder 4 being articulated with the counterweight 1 via the follower cylinder 5, at the starting position of the counterweight 1 And the position after the turning, the following cylinder 5 can lock the counterweight 1. In this way, by the control of the following cylinder, it is ensured that the weight has a relatively stable support at the starting position and the position after the turning, thereby improving the system reliability.
- the cylinder end of the follower cylinder 5 is hinged with the support portion 2 through the third hinge portion 5, and the piston rod end of the follower cylinder 5 passes through the fourth hinge portion 7 and the weight 1
- the piston rod end of the drive cylinder 4 is hinged to the cylinder of the follower cylinder 5 via a fifth hinge portion 6.
- the follower cylinder rotates about the third hinge 5, and during this process its piston end extends from the length of R2 to the length of R1 to accommodate the counterweight flipping action.
- the hydraulic cylinders of the drive cylinder 4 and the follower cylinder 5 are independent of each other.
- the hydraulic control system of the following cylinder 5 will be mainly described below.
- the hydraulic control system of the following cylinder 5 includes a fuel tank T, a first pilot operated check valve V1, a second pilot operated check valve V2, and an electromagnetic on-off valve S.
- a rod chamber of the moving cylinder 5 communicates with the oil tank T through the first pilot operated check valve V1, and the rodless chamber of the follower cylinder 5 passes through the second pilot operated check valve V2 and the fuel tank T is connected;
- the electromagnetic on-off valve S is connected in parallel between the oil tank T and the rod-shaped cavity of the follow-up cylinder 5; the first pilot-operated check valve V1 and the electromagnetic on-off valve S can be realized
- the locking cylinder 5 is locked.
- the electromagnetic on-off valve S When the piston of the cylinder 5 extends, the electromagnetic on-off valve S is opened, and the hydraulic oil from the rod cavity is returned to the oil tank through the electromagnetic on-off valve S; when the counterweight is turned to the designated position, the electromagnetic on-off valve S is closed.
- the electromagnetic on-off valve S and the one-way valve prevent the oil passage of the rod cavity to the oil tank from flowing back, thereby achieving position locking; in the process of the weight returning, the pressure oil is from the rodless
- the chamber is returned to the tank T via the second pilot operated check valve V2, and the pressurized oil enters the rod chamber from the tank through the first pilot operated check valve V1 to achieve the piston rod contraction of the follower cylinder.
- the support portion 2 is a hoisting box of the hoisting machine.
- the position of the counterweight 1 after being turned over relative to its initial position, the center of gravity of the counterweight 1 is increased.
- the support portion 2 has an outer vertical surface, and the first hinge portion 3 is located at the bottom end of the outer vertical surface to facilitate the counterweight 1 can be flipped horizontally around the first hinge 3 at 180°.
- the present invention also provides a hoisting machine comprising the above-described mobile weight mechanism.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
Claims (10)
- 一种起重机械的移动式配重机构,其特征在于,包括支撑部(2)、驱动部和配重(1),所述配重(1)通过第一铰接部(3)铰接于所述支撑部(2),所述驱动部连接在所述支撑部(2)和配重(1)之间,能够使得所述配重(1)绕所述第一铰接部(3)相对于所述起重机械的回转中心向外翻转,以增大所述配重(1)的重心与所述起重机械的回转中心的距离。
- 如权利要求1所述的移动式配重机构,其特征在于,所述驱动部包括驱动油缸(4),所述驱动油缸(4)的缸体端通过第二铰接部(4’)与所述支撑部(2)铰接,所述驱动油缸(4)的活塞杆端与所述配重(1)铰接,以使所述配重(1)能够绕所述第一铰接部(3)相对于所述起重机械的回转中心向外翻转,以增大所述配重(1)的重心与所述起重机械回转中心的距离。
- 如权利要求2所述的移动式配重机构,其特征在于所述驱动部还包括随动油缸(5),所述驱动油缸(4)的活塞杆端通过所述随动油缸(5)与所述配重(1)铰接,在所述配重(1)的起始位置和翻转后的位置,所述随动油缸(5)能够锁定所述配重(1)。
- 如权利要求3所述的移动式配重机构,其特征在于,所述随动油缸(5)的缸体端通过第三铰接部与所述支撑部(2)铰接,所述随动油缸(5)的活塞杆端通过第四铰接部(7)与所述配重(1)铰接;所述驱动油缸(4)的活塞杆端通过第五铰接部(6)与所述随动油缸(5)的缸体铰接。
- 如权利要求4所述的移动式配重机构,其特征在于,所述驱动油缸(4)和所述随动油缸(5)的液压控制系统相互独立。
- 如权利要求5所述的移动式配重机构,其特征在于,所述随动油缸(5)的液压控制系统包括油箱(T)、第一液控单向阀 (V1)、第二液控单向阀(V2)和电磁通断阀(S),所述随动油缸(5)的有杆腔通过所述第一液控单向阀(V1)与所述油箱(T)连通,所述随动油缸(5)的无杆腔通过所述第二液控单向阀(V2)与所述油箱(T)连通;所述电磁通断阀(S)并联在所述油箱(T)和所述随动油缸(5)的有杆腔之间;所述第一液控单向阀(V1)和所述电磁通断阀(S)能够实现所述随动油缸(5)的锁定。
- 如权利要求1所述的移动式配重机构,其特征在于,所述支撑部(2)为所述起重机械的卷扬箱。
- 如权利要求1所述的移动式配重机构,其特征在于,所述配重(1)翻转后的位置相对于其初始位置,所述配重(1)的重心提高。
- 如权利要求1所述的移动式配重机构,其特征在于,所述支撑部(2)具有外侧垂直面,所述第一铰接部(3)位于所述外侧垂直面底端,以便于所述配重(1)能够绕所述第一铰接部(3)180°水平翻转。
- 一种起重机械,其特征在于,包括如权利要求1~9任一所述的移动式配重机构。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/543,108 US10150656B2 (en) | 2015-01-28 | 2015-01-28 | Mobile counterweight mechanism of a hoisting machine as well as a hoisting machine |
DE112015006066.9T DE112015006066B4 (de) | 2015-01-28 | 2015-01-28 | Beweglicher Gegengewichtsmechanismus einer Hebemaschine sowie Hebemaschine |
PCT/CN2015/071686 WO2016119135A1 (zh) | 2015-01-28 | 2015-01-28 | 一种起重机械的移动式配重机构及起重机械 |
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PCT/CN2015/071686 WO2016119135A1 (zh) | 2015-01-28 | 2015-01-28 | 一种起重机械的移动式配重机构及起重机械 |
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WO2016119135A1 true WO2016119135A1 (zh) | 2016-08-04 |
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PCT/CN2015/071686 WO2016119135A1 (zh) | 2015-01-28 | 2015-01-28 | 一种起重机械的移动式配重机构及起重机械 |
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US (1) | US10150656B2 (zh) |
DE (1) | DE112015006066B4 (zh) |
WO (1) | WO2016119135A1 (zh) |
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DE202011050272U1 (de) | 2011-05-27 | 2011-07-14 | Pfanzelt Maschinenbau Gmbh | Forstfahrzeug mit einem Kran |
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2015
- 2015-01-28 WO PCT/CN2015/071686 patent/WO2016119135A1/zh active Application Filing
- 2015-01-28 US US15/543,108 patent/US10150656B2/en active Active
- 2015-01-28 DE DE112015006066.9T patent/DE112015006066B4/de active Active
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GB191305012A (en) * | 1913-02-27 | 1913-05-08 | Antonius Louis De Bruyne | An Improved Portable Railway-crane. |
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Also Published As
Publication number | Publication date |
---|---|
DE112015006066B4 (de) | 2021-09-16 |
DE112015006066T5 (de) | 2017-10-12 |
US10150656B2 (en) | 2018-12-11 |
US20170355577A1 (en) | 2017-12-14 |
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