• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    FIELD OF THE INVENTION The invention relates to a lifting and transport machinery, in particular, to gripping devices for loads that are sensitive to damage. pressure. The aim of the invention is to increase the safety of the cargo. Between the lifting mechanism 1 and -. gripping device is a dynamometer to determine the mass of the lifted load. The gripping device contains a carrier element and clamping cheeks connected to it by means of pull-gripping bodies 11. The clamping cheeks are connected to the hydraulic cylinder 8, on which is placed a dynamometer 9 for determining the pressing force acting on the load. Bolts are fastened on the load gripping bodies 11, on which the sleeves, which are electrically connected through the microswitch to the electrical system of the load-lifting mechanism, are placed frictionally. When the load is lifted, the pressure of the clamping jaws 10 on the load automatically changes through a signal from the sleeve. . i (L
    公开号:SU1416429A1
    申请号:SU837772799
    申请日:1983-01-27
    公开日:1988-08-15
    发明作者:Улрих Еллгер；Хартмут Ширрманн；Еахим Дирксен
    申请人:Академия Строительства (Инопредприятие)；
    IPC主号:
    专利说明:

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    The invention relates to clamping devices for loads in conjunction with a lifting mechanism, and in particular applies to gripping and carrying loads that are sensitive to pressures.
    A gripping device for loads that are sensitive to pressures, is mounted on a load-lifting mechanism, containing clamping bars driven from a hydraulic cylinder, and connecting the latter with a suspension to a load-lifting mechanism of a hinge-lever system (USSR Author's Certificate No. 208231, cl. В66С 1/44, 1966).
    However, this device does not fully ensure the safety of fragile products.
    The aim of the invention is to increase the safety of the cargo.
    This goal is achieved by the fact that the gripping device for loads, which are subject to high pressures, is hung on a lifting mechanism, containing clamping cheeks driven by a hydraulic cylinder and connecting the latter with a suspension to a lifting mechanism, the articulated-ryo-system is equipped with dynamometers one of which is placed on the hydraulic cylinder connected to the clamping arms by one to determine its own weight, and the other is mounted on the suspension to determine the force acting directly on the load, and the indication a torus of load relative to the cheeks, including a vertical finger in one of the clamping cheeks and a frictionally coupled sleeve with a microswitch controlled by a finger, spring-loaded relative to the sleeve, and the dynamometers and microswitches connected to the pressure control circuit hydraulic cylinder.
    FIG. 1 shows a grab carrier for cargo; in fig. 2 - and a displacement picker, section.
    A dynamometer, for example a dynamometer 3, is located between the lifting mechanism 1 and the load gripping device 2, which determines the mass of the lifted load 4. The measured mass value is fed through the measuring amplifier 5 of the control unit.

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    devices 6, for example, to a microcomputer and an actuator 7, for example, to a hydraulic servo valve, to control the pressure of hydraulics, to the working cylinders 8 of the gripping device 2. Supplementary dynamometer 9, for example, to homer, is located in the zone of the working cylinder 8. Q ma the value of this dynamometer 9 is fed with a measuring amplifier 5 also to the control device 6. On the clamping jaws 10 of the gripping device 2 in the area of the load gripping device
    15 of the body 11 is an indicator of vertical slippage. The load gripping body 11 is connected with the load 4 through a friction, a clutch and has a vertical bolt 12, which is movably inserted into the corresponding sleeve 13 and is displaced axially. As a result, the load gripping body 11 is limited to the rotary body and can be adapted to
    25 form of the load 4. The bolts 12 and the sleeve 13 are interconnected also by a friction clutch. At the same time, the coefficient of friction should be less than all possible coefficients of friction, which can arise directly between the load gripping body 11 and the load 4. With insufficient pressing force of the clamping jaws 10 on the load 4, when lifting the load 4, a vertical slip occurs between the bolt 12 and the sleeve 13 The signal which is produced in the microswitch 14 is transmitted to the control device 6 or the actuator 7 for a steady increase in the pressing force. Through the spring 15, when unloading, the bolt 12 is brought back to its original position.
    The principle of the proposed device.
    When the load 4 is lifted through the signal of the vertical slippage indicator of the load, processed in the control device 6 and the actuator 7, the pressure pressure of the clamping jaws 10 on the load 4 automatically increases by means of the working CLP B as much as the vertical slip is equal to zero. clamping cheeks 10 and load 4.
    Then, through the dynamometer 3, the mass of the load is transmitted as a measured weight.
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    FIG. 2
    权利要求:
    Claims (1)
    [1]
    Claim
    Gripper for pressure sensitive loads 10 fi 2 pits, hung on a load-lifting mechanism, containing clamping jaws driven from the hydraulic cylinder and connecting the latter with a suspension to the load-lifting mechanism, a hinged-lever system, characterized in that, in order to increase the safety of the load, it is equipped with dynamometers, one of which is for determining its own weight the load is placed on a hydraulic cylinder connected to the clamping levers, and the other for determining the force acting directly on the load is mounted on the suspension, and an indicator of the vertical slip of the load about in relative cheeks comprising a set in one of the vertical cheeks of the clamping pin and frictionally associated with it a sleeve with a microswitch operated by the finger, a spring-loaded relative to the sleeve, wherein the dynamometers and microswitches connected to the magnitude circuit control the pressure in the hydraulic cylinder.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1416429A1|1988-08-15|Device for engaging loads sensitive to overpressure
    EP0535339B1|1997-07-23|Load moment indicator system
    EP0664272B1|1999-08-25|Slip-correcting load-clamping system
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    US10875755B2|2020-12-29|Pivoting load-bearing assembly with force sensor
    US4486136A|1984-12-04|Device for determining weight of objects being moved
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    EP0028462A1|1981-05-13|Apparatus for lifting or lowering a load
    SU1070431A1|1984-01-30|Weight receiving device for crane balance
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    SU1670489A1|1991-08-15|Device for tensile testing at hydrostatic pressure
    SU1556897A2|1990-04-15|Method of controlling the gripping device for industrial robot
    SU411026A1|1974-01-15|
    GR3000981T3|1991-12-10|Lockable multidirectional joint for a manipulator
    CA2555839A1|1997-10-26|Clamp force control for load-handling device
    SU1721465A1|1992-03-23|Device for weighting of load crane
    RU1794863C|1993-02-15|Method of determining total weight of loads loaded by manipulator
    同族专利:
    公开号 | 公开日
    CS246575B1|1986-10-16|
    DE3245715A1|1983-09-01|
    DD206661A3|1984-02-01|
    CS69183A1|1985-06-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5292219A|1990-02-23|1994-03-08|Auramo Cargo Systems Oy|Procedure and apparatus for the handling of loads|
    FI84715C|1990-02-23|1992-01-10|Auramo Cargo Systems Oy|Method and apparatus for handling cargo|
    US5417464A|1993-12-10|1995-05-23|Cascade Corporation|Slip-correcting load-clamping system|
    FR2722488B1|1994-07-12|1996-10-04|Sollac Sa|LIFT GRIPPER FOR AXIALLY HIDDEN CYLINDER WITH HORIZONTAL AXIS|
    FR2731730A3|1995-03-16|1996-09-20|Conception Commercialisation M|Automatic electric safety for lifting machinery|
    SE505210C2|1996-04-26|1997-07-14|Nymek Ab|Control for a load handling device|
    US6843636B2|1998-10-07|2005-01-18|Cascade Corporation|Adaptive load-clamping system|
    CA2282198C|1998-10-07|2003-06-10|Cascade Corporation|Adaptive load-clamping system|
    US6431816B1|1998-10-07|2002-08-13|Cascade Corporation|Adaptive load-clamping system|
    ITVR20020065A1|2002-06-12|2003-12-12|Roncari S R L|FORCES CONTROL AND COMMAND DEVICE FOR THE TIGHTENING OF LOADS TO BE TRANSPORTED BY LIFT TRUCKS OR SIMILAR.|
    US9964428B2|2008-10-09|2018-05-08|Cascade Corporation|Equalized hydraulic clamp force control|
    IT201900007533A1|2019-05-30|2019-08-30|Euroimpianti S P A|METHOD OF LIFTING AND HANDLING PRODUCTS AND RELATIVE GRIPPING HEAD|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD23759282A|DD206661A3|1982-02-23|1982-02-23|LOADING AND CARRYING DEVICE|
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