WO1988006720A1 - Process and device for determining the weight and/or the position of the centre of gravity of containers - Google Patents

Process and device for determining the weight and/or the position of the centre of gravity of containers Download PDF

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Publication number
WO1988006720A1
WO1988006720A1 PCT/EP1987/000120 EP8700120W WO8806720A1 WO 1988006720 A1 WO1988006720 A1 WO 1988006720A1 EP 8700120 W EP8700120 W EP 8700120W WO 8806720 A1 WO8806720 A1 WO 8806720A1
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Prior art keywords
characterized
container
device according
frame
force
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Application number
PCT/EP1987/000120
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German (de)
French (fr)
Inventor
Carsten Ahrens
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Carsten Ahrens
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
    • G01M1/00Testing static or dynamic balance of machines or structures
    • G01M1/12Static balancing; Determining position of centre of gravity
    • G01M1/122Determining position of centre of gravity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/16Applications of indicating, registering, or weighing devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G15/00Arrangements for check-weighing of materials dispensed into removable containers
    • G01G15/006Arrangements for check-weighing of materials dispensed into removable containers using electrical, electromechanical, or electronic means not covered by G01G15/001, G01G15/02, G01G15/04
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/08Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
    • G01G19/083Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles lift truck scale
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/14Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
    • G01G19/18Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G01G19/414Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only

Abstract

A process and a device make it possible to determine the weight and/or the position of the centre of gravity of containers. First, the tensile and/or compressive forces acting on the points of support of a hanging or standing container are measured in its initial position. The container is then inclined at a given angle to its initial position and the tensile and/or compressive forces acting on the points of support of the inclined container are measured. The weight and/or position of the centre of gravity of the container are derived by calculation from the results obtained.

Description

Method and apparatus for determining the weight and / or the spatial center of gravity of containers

The invention relates to a method for determining the weight and / or the spatial center of gravity of containers and an apparatus for performing this method.

A weight measurement occurs during the transfer of containers usually do not, but the container weights are taken from the accompanying documents. Often, however, the weights given do not match the actual weight, that is, in the majority, the weights are too low. Particularly for water transport, this is disadvantageous, or even dangerous, as result from increased weight, increased depth and thus poorer stability characteristics of the ship. An even greater influence on the stability properties of vessels but has the height of center of gravity of the load. In containers, the center of gravity is generally believed at half the length, width and height as the sea trade association and the Germanic Lloyd assume that there is sufficient stability margins are available by this assumption. In individual cases, stability calculation on the basis of 45% of the height and z. Sometimes even 40% inter-level priorities approved. The exact, that is but the actual determined by weight and balance Läge container conditions are obtained only after the complete loading of the ship by its depth and inclination, because its on the charge moment calculation can not lead to a correct result when incomplete or inaccurate weights and unknown center of gravity to be used.

The invention is therefore based on the object to provide a method and apparatus for accurately determining the weight and / or the spatial center of gravity Läge of containers indicate the required for this determination measurements without significant impairment of the loading process, ie, without extension or delay the ümschlagzeit already should be before and / or during loading possible.

This is achieved in that the tension occurring at the points of a suspended in a starting position and / or stationary container and / or pressure forces are measured in a first measurement, the container is tilted below from the initial position by a defined angle, in accordance with the invention second measurement, the tension occurring at the attachment points of the tilted container and / or pressure forces are measured and the weight and / or the center of gravity of the container is calculated from the determined values. This makes it possible to determine directly during the loading process of containers whose weight and balance, especially if means for measuring the force be installed directly into a loading facility. It is advantageous if an electronic calculator is used to calculate the weight or center of gravity, since this reduces the time delay in container handling to an acceptable level can be maintained.

A device according to the invention is characterized by preferably four load cells, on each of which a container is (as of version) and / or it depends (Hangerversion), wherein the container is pivotable together with the force transducers around one of its edges and the force transducers via electrical connection means are connected to an electronic evaluation unit.

Further advantageous design features of the invention are contained in the subclaims and the following description.

Based on the drawing in exemplary embodiments illustrated in the following the invention is explained in more detail. In the drawings: Figure 1 is a side view of the mechanical part of a prior version of a device according to the invention with an attached container.

Fig. 2 is a front view of the device according to Fig. 1, Fig. 3 is a block diagram of the electrical part of an apparatus according to the invention,

Fig. 4 is a schematic representation of a property on load cells container, Fig. 5 is an end view of a container in a horizontal and a tilted position, Fig. 6 schematic illustrations of the forces occurring during a hanging container, Fig. 7 to 9 show further schematic representations of the at tilting of the Containers forces, Figure 10 is a schematic representation of a container with possible

Rocking edge, 11 is a side view of an alternative embodiment of a prior version of an apparatus according to the invention,

12 shows an enlarged detail view of Fig. 11, 13 is a side view of another prior version of a device according to the invention, Figure 14 and 15 are side views of Hangerversionen of the inventive device in connection with Spreaderri and

16 is a further alternative embodiment of the device according to the invention using a straddle.

A first embodiment of an inventive apparatus for determining the weight and / or the räumliehen center of gravity of containers (Figs. 1 and 2) consists of a frame 1 on which a container 2 can be placed (as of version). Alternatively to the illustrated example, the container 2 can also be - possibly via ropes or the like - are suspended on the frame 1 (Hangerversion), so that the invention can also be used directly to container loading bridges and portal stackers. The frame 1 preferably has the same width and length as the container 2, where it is convenient to dimension the frame 1 for the largest occurring container and to provide brackets in the corresponding dimensions smaller containers. In the points of support of the container 2, four load cell 3,4,5,6 are arranged in the frame 1 preferably. These are electrical tensile or compression force transducer, preferably with built-in sense amplifiers and A / D-WWandlern 7 (Fig. 4). The frame 1 is advantageously on height-variable falls 8, which may be designed hydraulically adjustable or by hand. By means of these support legs 8 of the frame in the horizontal alignable. In order to control the orientation of at least one spirit level (not shown) attached to the frame. 1 The container 2 is according to the invention around one of its edges, preferably a lower longitudinal edge 9 (in a container suspended to an upper longitudinal edge) tiltable, for which purpose conveniently two hydraulic piston-cylinder units 11 are secured to the frame. 1 To limit the pivoting of the container 1 2, the frame has an adjustable stop and to secure retention and guidance when placing the container 2 guide rails 12, shock absorber 13 and / or detents in, the latter being attachable and detachable by means of a hydraulic fourteenth The hydraulic piston-cylinder units 11 are fixed according to the invention connected via pipes or hoses to a hydraulic pump, which is 3,4,5,6 fixedly connected via connecting cables to an electronic computer 16 as well as the force transducer so that recorded during the measurement values ​​automatically can be evaluated. The computer 16 then controls according to the invention also the pivoting of the container 2. Furthermore, controls the computer 16 via a multiplexer 17, the choice of the measurement channel, that is, the connected respectively to a power supply 18 and to the evaluation of the force transducer 3,4,5 or 6. The recorded measured values ​​are thus individually interrogated channel by channel advantageously by the computer and evaluated. The amplified analog measurement signals are converted by an analog / digital converter 19 into usable by the computer 16 digital signals. Anschlußmoglichkeiten for data display device 22, input terminals 23, printers 24 and / or data memory 25 are provided to the computer sixteenth As data storage 25, for example, floppy disks are. The computer 16 and the devices connected to it are housed advantageously in a weatherproof housing 26th

To carry out a measurement of the frame 1 is first aligned in the horizontal. General information, such as container lobster, dimensions, destination, measurement location, date, time and the like can be input into the computer 16 via the input terminal 23rd In a first measurement, first, the action in the support points of the container 2 to the load cell 3 to 6 forces F 1, F 2, F 3, F 4 queried during stands horizontal container 2, channel by channel by the computer 16 and stored. Thereafter, the computer 16 automatically triggers the pivoting of the

Container 2 around a lower longitudinal edge 9 from. Preferably, the container 2 is at an angle

Figure imgf000009_0001
pivoted about 10 degrees. There now takes place the absorption of the forces F 1 ', F 2', F 3 ', F 4' with swiveled container, whereby it is important that the force transducers are arranged such that only forces, ie force components in a defined, preferably in the vertical direction are measured. Subsequently, controls the computer 16, the Rückverschwenkung of the container. Based on the determined measured values ​​of the computer now calculated by the formulas

Figure imgf000010_0001
or
Figure imgf000010_0002

the weight (mass) of the container.

Furthermore (see Fig. 5 and 6) the spatial coordinates L S, S B and S H of the center of gravity S of the formulas

Figure imgf000010_0003
Figure imgf000010_0004
Figure imgf000010_0005

(As of version), since F 3 + F 4> F3 '+ F4'

Figure imgf000010_0006

(as control test), since F 1 '+ F 2'> F 1 + F 2

Figure imgf000011_0002

(Hangerversion), F 3 '+ F 4'> F 3 + F 4

Figure imgf000011_0003

(F 1 + F 2> F 1 '+ F 2') (as control test)

calculated. In these formulas, the gravitational acceleration g mean (9.81 m / sec),

Figure imgf000011_0007
the tilt angle of the container and B, L, H is the width, length, height of the container, measured from a reference point, preferably a lower corner of the container (see Fig. 6). The formulas are valid only for horizontal starting position (Anfangskippwinkel
Figure imgf000011_0006
For a defined non-horizontal starting position (starting angle
Figure imgf000011_0005
known an d tilt angle) is valid (see Figures 7 and 8).:
Figure imgf000011_0004

Forces at baseline, F 1 ', F 2', F 3 ', F 4

Figure imgf000011_0008
'Forces in the tilted: F 1', F 2 ', F 3 ", F 4"
Figure imgf000011_0009
mg = F 1 '+ F 2' F + 3 '+ F 4' = F 1 "+ F 2 '+ F 3" + F 4 "

for the prior version (Fig. 7):

Figure imgf000011_0001
Figure imgf000012_0001

Figure imgf000012_0002

Figure imgf000012_0003

Figure imgf000012_0004

and for the Hangerversion (Fig. 8):

L above

H S (2) = H H + S (1)

B S corresponding

In an undefined, non-horizontal starting position (not defined initial angle but

Figure imgf000012_0005
defined tilt angle L S is as above
Figure imgf000012_0006
give. In the above equations for H S can be replaced f
Figure imgf000013_0001
with an error of less than ± 2.4%
Figure imgf000013_0010
and . By this approximation, the situation is
Figure imgf000013_0003
the height of the center of gravity to a maximum of 2.4% too high determined. Furthermore:

dependent with one of H and S

Figure imgf000013_0005
Figure imgf000013_0004
Error for H and S <0.7 B at a maximum
Figure imgf000013_0006
5%.

In contrast to the previously described measurements also a non-vertical force measurement is feasible taking into account the friction (see Fig. 9). Here, the components F 1 * F are based on the tilting instead of the vertical forces F 1 ', F 2', F 3 ', F 4' 2 *, R 3 *, R 4 * is measured, where: F * = F ' • It should cos to achieve greater Gena

Figure imgf000013_0007
uigkeit F 1 '+ F 2' nor the frictional force F R - μ. m. g.
Figure imgf000013_0009
,
Figure imgf000013_0008
(Μ = coefficient of friction) will be corrected.

The foregoing considerations relate to a tilting of the container around the rocking edge 9 according to Figures 4 to 6. For tilting to other tipping edges 9a, 9b (Fig. 10) the respective variables have to be interchanged in the formulas. z. As applies to the rocking edge 9 a:

Figure imgf000013_0002
On the data display device 22 and / or the printer 24, the output and display of the measurement result is performed according to the measurement and the analysis, wherein the input before the measurement general information are advantageously displayed with.

The inventive device can be calibrated by defined masses are attached at defined locations within an empty container.

The device, that the control by the computer can be set such that the entire measurement takes no more than half a minute, so that no significant delays of the container envelope are to be feared.

Besides the described automatic calculation of the weight and / or center of gravity values ​​by the computer 16, it is alternatively naturally also möglieh to detect the force measurements only, and to determine in size and subsequently "manual" to perform the calculations required by the specified formulas.

In an alternative embodiment of a prior version of an apparatus according to the invention (Fig. 11 and 12) are four, for example, manually operated hydraulic jacks 31,32 preferably provided, which in each case is about 10 t (100 kN) have bearing capacity. This lifter 31,32 are to locate the corners of the container 2 opposite. Two laterally to be arranged on the side of the rocking edge 9 adjacent to the container 2 lifter 31 are fixedly mounted on a respective base plate 33 (welded, bolted). Each of these fixed lifter 31 (FIG. 12) has a vertically movable piston rod 34 to which a Hebestaήge 35 is fixed, which in the example illustrated, starting from the piston rod 34 has a horizontally extending in the direction of the container 2 leg 35a, an on having this subsequent running parallel to the piston rod 34 vertically downward leg 35b and a portion extending from the latter horizontally in the direction of the container 2 leg 35c. The free end of the leg 35c is formed as a preferably cylindrical stud, or as a so-called twist lock which engages in a circular or rectangular mounting opening 36 (corner casting) in the wall of the container. 2 The cylindrical pin thus serves as a pivot support of the container 2 for pivoting about the rocking edge 9 between the leg 35b and the wall of the container 2 is, for example, a scroll wheel 37, a ball or the like are arranged, whereby at tilting of the container 2 at this location reduces friction occurring, but also a tilting of the jack is prevented even in the direction of the container. 2 On the base plate 33 is a fixed perpendicularly to said upwardly extending plate 38 to seitliehen tilt lock of the container. 2 The to be arranged on the lifting side 39 of the container 2 lifter 32 are disposed about an axis 41 tilted on a base plate 42 having analogous to the base plates 33, a plate 43 for increased stability. During the application of the device the plates are connected to 38 and preferably 43 via crosswise extending struts 44 together. Each lifter 32 has on its piston rod also has a lifting rod, which is formed analogously to the lifting rod 35 of jack 31 and also with a cylindrical pin or a twistlock engages in an opening of the container 2 (analogous to Fig. 12). Preferably 45 (z. B. strain gauge) is in or on the vertical legs 35b of each lifting rod 35 a force transducer arranged.

For the first measurement, the container 2 is lifted with all four lifters 31,32 in a horizontal position. The second measurement is carried out after the two jacks 32 of the lifting side 39 tilt angle of the container 2 defined by the

Figure imgf000016_0001
have tilted.

This embodiment is suitable due to its simple design (minimal version), in particular as a portable measuring apparatus that can be used when measured once and without pressure of time.

In the illustrated in Fig. 13 another embodiment of a device according to the invention also is a prior version. In this embodiment, the load cells are mounted in a plate frame 47 3,4,5,6 receiving the container 2 and is tilted as a whole together with the container. 2 The platen frame 47, the guide rails 12 for holding and guiding the container 2 which is pivotally mounted about an axis 48 on a base 49th The base 49 has at least one hydraulic jacks 51 whose piston rod 52 is movable and fixed to the panel frame 47 via an articulation 54 in the direction of arrow 53rd The load cells 3 to 6 can be supported via spring elements 55 on the plate frame 47th Since the load cells 3 to 6, the plate frame 47 and the container 2 as a whole to be pivoted together in this embodiment, no vertical forces can be measured by the pivoting. It is therefore in this case to take into account the friction in the calculation, as described above.

In Figs. 14 and 15 Hangerversionen of the device according to the invention are shown. A rectangular, the width and length of the container 2 corresponding lifting frame, a so-called spreader 57, has in the region of its four corners each have a pin, a so-called twist lock 58th Each twistlock 58 has a longitudinal axis 59 about its rotatable head 61 in the corresponding holding opening (corner casting) 36 engages on the top of the container 2 and about 90 ° is locked by rotation through an angle of usually. According to the invention now the force transducers 3, 4, 5, 6 is arranged on or in the support bolt 62 of the twistlocks 58th The twistlocks 58 are so mounted on the spreader 57, and that it can be displaced upward, that is in the direction of arrow 63 and thereby freely slidable retractable in the opposite direction against the force of springs 64th This arrangement serves to dampen shock and acceleration forces during the placing and lifting of the container 2. Since it is possible with container hoisting equipment, the two Zugseilpaare 65 independently of the Zugseilpaaren 66 to proceed, the entire spreader 57 may be tilted together with the container 2 (Fig. 14). This embodiment allows a tilting of the container 2 around its upper tipping ridge 9 (Fig. 6). Alternatively, a plate frame can on the underside of the spreader 57 to be pivoted about an axis 68 67 (Fig. 15), then the plate 67 having the twistlocks frame 58th In the latter case, a hydraulic jack 69 is located between the spreader 57 and the plate frame 67 by means of which the plate frame 67 by the tilting angle

Figure imgf000018_0001
can be pivoted downwards. This embodiment allows a tilting of the container 2 at all rocking edge 9, 9a, 9b (Fig. 10).

In the described Hangerversionen it is expedient when the twistlocks are mounted in such a tiltable 58 that vertical forces can be measured. However, if non-tilting twistlocks 58 are used, in the measurement of non-vertical forces, the friction described above in accordance with the theory to be considered.

In the case of container cranes and forklifts portal measuring cable 71 and other supply lines 72 to hoisting ropes run parallel (Fig. 14).

The simplest way of tilting the container 2 is obtained by using a conventional

called straddle 73 (Fig. 16), also straddle carrier that can accommodate the container 2 and is mobile. This driveability is exploited in order to tilt the container 2 by the straddle carrier 73 from a horizontal plane 74 to a by the tilting angle

Figure imgf000018_0003
rising inclined plane 75 ascends. For control measurements, it is convenient if at this inclined plane 75 another horizontal plane 76 and at an angle
Figure imgf000018_0002
Connecting sloping inclined plane 77, so that the straddle carrier 73 can perform a measurement movement in the direction of arrow 78th The container 2 is preferably attached in turn provided with force transducers twistlocks on the straddle 73rd

Modern spreader offer the possibility to change their support frame telescopically in size to a single 20 '(610 cm) container, a single 40' (1220 cm) container or two 20 '

(610 cm) Container receiving one behind the other (not shown). For the simultaneous determination of the weight and / or the spatial center of gravity of two containers up to eight load cell would correspondingly installed and the hardware of the processing unit to be designed for a corresponding number of measurement channels.

It is also expedient if an automated measuring device, comprising for example light barriers or the like, is used to Hohenbestimung of the container. 2 The measured height should be fed directly to the computer sixteenth

An impairment of the envelope tempo of the container by the measurement of weight (mass) and centroid coordinates can not occur even with large handling terminals, when the measurement z. B. made directly to the supplying or unloading of containers, since the plurality of the containers are first stacked on call for from hours to days. Also directly from forwarder to ship containers to be loaded only a delay of the duration would result in about a measuring operation when a measuring device is present per container bridge.

A further technically advantageous because statically determined cost and execution of a measuring device and farm Verkippvarrichtung results from the figures 17 to 20. The tilting is carried out in this device is a parallel to the container longitudinal dimension and in the middle area extending tilting axis. This is held at the longitudinal ends of the container support frame by two fixed supports with built-in load cells. The tilting is performed by a center-mounted on one side of the frame tilt hydraulics, which can tilt the frame up and down, and in which also a force transducer is integrated.

The two compression force transducer of the tilt axis bear almost the entire burden. The tension / compression load cell of the tilt hydraulics can be dimensioned accordingly weaker, since it is only acted upon by the eccentrically lying or migrating upon tilting by weight. In this version, the tipping hydraulics can correspondingly weaker dimensioned and their Kippwege be possibly reduced.

For steadiness and to avoid torques that destroy or the force transducers in the wheel brackets may distort the measurement, suitable low friction supports are to be mounted on the wheel brackets.

To protect the load cell total is further a detent z. B. at the four corner points required which lifts the supporting frame together with the container in the loading and unloading of the force transducers. After discontinuation of the frame for weighing these can coupled to the tilt hydraulics as an additional entrained anti-tilt of the container can be used. A rigid mechanical limit on maximum allowed tilt angle is required in every case.

A tilting about an axis extending in the plane center of the container holding frame tilt axis can also be advantageous for the devices according to Figures 13 and 15 using

The invention is not limited to the illustrated embodiments, but also includes all the purposes of the invention, the same effect measures.

Claims

Claims:
1. A method for determining the weight and / or the spatial center of gravity of containers, characterized in that the tension occurring at the points of a suspended in a starting position and / or stationary container and / or pressure forces are measured in a first measurement, the container below is tilted from the output would increase by a defined angle, the tension occurring at the attachment points of the tilted container and / or pressure forces are measured in a second measurement, and the weight and / or the center of gravity of the container is calculated from the determined values.
2. The method of claim 1, characterized in that the tension occurring at the attachment points of the container and / or pressure forces from the calibrated tensile and / or Druckkraftaufnehmern are detected, the electrical output measurement signals in dependence on the occurring
generate forces.
3. The method according to claim 1 or 2, characterized in that the measuring signals detected via measuring amplifier and an analog / digital converter are supplied for the evaluation of a microcomputer.
4. The method of claim 2 or 3, characterized in that force transducer with an integrated or immediately subsequent sense amplifier and are preferably used with integral AD converter.
5. The method according to one or more of Claims
2 to 4, characterized in that are turned on by a measuring amplifier / AD converter connected to the multiplexer force transducers the measurement signals channel by channel.
6. The method according to claim 5, characterized in; that the control of the multiplexer, and thus channel selection is performed by the microcomputer.
7. The method according to one or more of claims 3 to 6, characterized in that is automatically controlled by the microcomputer of the measurement process including the tilting of the container, processing the measured signals and the results together with inputted before the measurement general information, such as location, date, time, container number, dimensions, location and the like, are displayed on a visual display unit and / or a printer.
8. A method according to claim 7, characterized in that all the data is stored in data stores.
9. The method according, to one or more of Claims
1 to 8, characterized in that the container is tilted at a lower or an upper side edge.
10. The method of claim 9, since by in that the container is tilted at an angle of approximately 10 °.
11. The method according to one or more of claims 1 to 10, characterized in that four force transducer can be used.
12. The method according to one or more of claims 1 to 11, characterized in that the power supply of the load cell, sense amplifier and / or AD converter is performed by the microcomputer.
13. The method according to one or more of claims 1 to 12, characterized in that the analog values ​​are digitized directly at the sense amplifier by the AD converter in order to ensure a substantially less interference-prone transmission path of the measuring signals to the microcomputer.
14. A device for determining the weight and / or the spatial center of gravity of containers, in particular for implementing the method according to claims 1 to 13, characterized by preferably four force transducers (3, 4, 5, 6; 45), on each of which a container ( 2), and / or it depends, wherein the container (2) together with the force transducers (3, 4, 5, 6; 45) is Giftable about one of its edges and the force transducers (3, 4, 5, 6; 45) are preferably connected via electrical connecting means with an electronic evaluation unit.
15. Device according to claim 14, characterized in that the force transducer
(3,4,5,6) in a frame (1) are arranged, which preferably has the width and length of a container (2).
16. The apparatus of claim 14 or 15, characterized in that the frame (1) on the height-variable support (8), in particular hydraulic supports, is, by means of which it is aligned in the horizontal.
17. The apparatus according to claim 16, characterized in that the frame (1) for controlling the horizontal orientation having at least a dragonfly.
18. The device according to one or more of claims 14 to 17, characterized in that the frame (1) for pivoting the container (2) at least one, preferably two hydraulic piston-cylinder units (11).
19. The device according to one or more of claims 14 to 18, characterized in that the frame (1) has an adjustable stop for limiting the pivoting of the container (2).
20. The device according to one or more of claims 14 to 19, characterized in that the frame (1) guide rails (12), shock absorber (13) and / or detents to the container (2).
21. Device according to claim 18, characterized in that the hydraulic piston-cylinder units (11) are fixedly connected via pipes or hoses to a hydraulic pump (15).
22. The device according to one or more of claims 14 to 21, characterized in that the force transducer (3,4,5,6) and the hydraulic pump (15) via connecting cable fixed with an electronic computer (16) are connected.
23. The device according to claim 22, characterized in that between the force transducers (3,4,5,6) and the computer (16) is preferably integrated instrumentation amplifier (7) and AD converter (19) and a multiplexer (17) are arranged.
24. The apparatus of claim 22 or 23, characterized in that the computer (16) is respectively connectable at least one data display device (22), an input terminal (22), a printer (24) and / or a data memory (25).
25. The device according to one or more of claims 22 to 24, characterized in that the computer (16) is connected to a power supply (18) for the force transducer (3,4,5,6).
26. The device according to one or more of claims 14 to 25, characterized in that the force transducer (3,4,5,6) integrated instrumentation amplifier (7).
27. The device according to one or more of claims 22 to 26, characterized in that the computer (16) and the devices connected to it in a weatherproof housing (26) are housed.
28. Device according to claim 14, characterized in that the force transducer (45) on preferably four individual hydraulic jacks (31,32) are arranged, which at its piston rod, respectively (34) one with the container (2) connectable to the lifting rod (35).
29. The device according Anpruch 28, characterized in that on the edge of the tilt (9) of the container (2) opposite lift side (39) arranged hydraulic jack (32) on a base plate (42) are pivotally mounted.
30. The apparatus of claim 28 or 29, characterized in that the hydraulic jacks (31,32) are connected via struts (44) connected to one another.
31. The device receiving according to claim 14, characterized by a on a base (49) about a horizontal axis pivotable mounted, the container (2) plate frame (47) in the attachment points for the container (2) the force transducers (3,4, 5.6) has.
32. Apparatus according to claim 14, characterized in that the force transducer (3,4,5,6) to the twistlock (58) of a spreader (57) of container lifting devices are arranged.
33. Apparatus according to claim 32, characterized in that the entire spreader (52) is pivotable about a horizontal axis.
34. Apparatus according to claim 32, characterized in that the spreader (52) comprises a about a horizontal axis (68) pivotable plate frame (67) on which the twistlocks (58) are arranged.
35. Apparatus according to claim 14, characterized in that the force transducers are arranged in the container mounting points of a portal stacker (73), the straddle carrier (73) together with the container (2) by means of an inclined plane (75,77) tiltable.
36. The device according to one or more of claims 14 to 35, characterized by a preferably connected to the computer (16) automatic measuring device to assess the height of the container (2).
37. Device according to one or more of claims 14 to 36, characterized by an automatic connected, preferably with the computer (16) measuring means for determining the Kippwinkeis 7 ".
38. Device according to one or more of Claims
1 to 37, characterized in that ß the tilting of the holding frame is held by two fixed supports with integrated force sensors at the longitudinal ends of the container takes place about an parallel to the container longitudinal dimension and in the center of area extending tilt axis, wherein a center-mounted on one side of the frame kipphydraulik is arranged, which can tilt the frame up and down, and in which also a force transducer is integrated.
39. Apparatus according to claim 38, characterized in that the two pressure-force transducer of the tilt axis almost carry the entire load.
40. The apparatus of claim 38 and / or 39, characterized in that suitable low friction supports are attached to the axle brackets.
41. Device according to one or more of Claims
38 to 40, characterized in that to protect the force transducer total of a detent z. B. disposed at the four corners, which lifts the supporting frame together with the container in the loading and unloading of the force transducers.
PCT/EP1987/000120 1987-02-27 1987-02-27 Process and device for determining the weight and/or the position of the centre of gravity of containers WO1988006720A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1987/000120 WO1988006720A1 (en) 1987-02-27 1987-02-27 Process and device for determining the weight and/or the position of the centre of gravity of containers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863629244 DE3629244A1 (en) 1985-08-30 1986-08-28 Method and device for determining the weight and/or the centre-of-gravity position in space of containers
PCT/EP1987/000120 WO1988006720A1 (en) 1987-02-27 1987-02-27 Process and device for determining the weight and/or the position of the centre of gravity of containers

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WO1988006720A1 true true WO1988006720A1 (en) 1988-09-07

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Publication number Priority date Publication date Assignee Title
FR2651880A1 (en) * 1989-09-11 1991-03-15 Odru Robert Method and device for weighing a load
US5672815A (en) * 1995-06-07 1997-09-30 United Parcel Service Of America, Inc. Method and apparatus for measuring outside dimensions and the center of gravity of a package
DE29622132U1 (en) * 1996-12-23 1998-03-19 Kuka Schweissanlagen Gmbh Measuring device for determining mass ratios
US6690995B2 (en) 2001-08-24 2004-02-10 United Parcel Service Of America, Inc. Method and apparatus for measuring and diverting an object from a high-speed conveyor
GB2461273A (en) * 2008-06-24 2009-12-30 Seppo Haekkinen Load monitoring system
WO2011070331A1 (en) * 2009-12-10 2011-06-16 Halliburton Energy Services, Inc. Methods and systems for determining process variables using location of center of gravity
EP2378263A1 (en) * 2010-04-19 2011-10-19 Schenck Process GmbH System and method for determining the centre of gravity of rail vehicles
CN103234614A (en) * 2013-04-18 2013-08-07 梅特勒-托利多(常州)测量技术有限公司 Weighing device for container

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FR2499053A1 (en) * 1981-02-04 1982-08-06 Toyoda Automatic Loom Works Method and apparatus for indicating the state of charge of a forklift
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DE3440571A1 (en) * 1984-11-07 1985-11-07 Daimler Benz Ag Arrangement for determining the centre of gravity of a test specimen
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FR2320891A1 (en) * 1975-08-11 1977-03-11 Transrail Ab Materials handling equipment
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651880A1 (en) * 1989-09-11 1991-03-15 Odru Robert Method and device for weighing a load
US5672815A (en) * 1995-06-07 1997-09-30 United Parcel Service Of America, Inc. Method and apparatus for measuring outside dimensions and the center of gravity of a package
DE29622132U1 (en) * 1996-12-23 1998-03-19 Kuka Schweissanlagen Gmbh Measuring device for determining mass ratios
US6690995B2 (en) 2001-08-24 2004-02-10 United Parcel Service Of America, Inc. Method and apparatus for measuring and diverting an object from a high-speed conveyor
US6952628B2 (en) 2001-08-24 2005-10-04 United Parcel Service Of America, Inc. Center of gravity and dimension measuring device and apparatus
GB2461273A (en) * 2008-06-24 2009-12-30 Seppo Haekkinen Load monitoring system
WO2011070331A1 (en) * 2009-12-10 2011-06-16 Halliburton Energy Services, Inc. Methods and systems for determining process variables using location of center of gravity
US8511150B2 (en) 2009-12-10 2013-08-20 Halliburton Energy Services, Inc. Methods and systems for determining process variables using location of center of gravity
EP2378263A1 (en) * 2010-04-19 2011-10-19 Schenck Process GmbH System and method for determining the centre of gravity of rail vehicles
DE102010015571A1 (en) * 2010-04-19 2011-10-20 Schenck Process Gmbh System and method for determining the center of gravity in rail vehicles
CN103234614A (en) * 2013-04-18 2013-08-07 梅特勒-托利多(常州)测量技术有限公司 Weighing device for container

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