CN1058469A

CN1058469A - Weighing-appliance

Info

Publication number: CN1058469A
Application number: CN 91104643
Authority: CN
Inventors: 阿瑟·凯伦巴赫
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-06-14
Filing date: 1991-06-14
Publication date: 1992-02-05
Also published as: WO1991019960A1; CA2085338A1; EP0533777A1; BR9106560A

Abstract

Be used for livestock and other object are carried out the weighing-appliance of electronic-weighing, this equipment is made of an elongated weight receiving member (20), the longitudinal axis of the two ends of this member and this member intersect axial on alignment sensor (23,24,60) is housed.Alignment sensor can comprise the bent beam arm beam of steelyard (23) or a pair of dynamometer (60).

Description

Weighing-appliance

Have, be applicable to that with the special use beam form of weighing the economical and practical weighing-appliance of electronic-weighing of livestock and industrial load and many other article is known, this known equipment is made of a load receiving element, bearing capacity on the receiving element is passed on the sensor component, sensor component can adopt the axially extended bent beam rod type of weighing, have foil gauge on this bar of weighing, perhaps make the bar of weighing comprise a pair of dynamometer, a dynamometer respectively is installed at the two ends of load receiving element.If using the position of sensor is a bent beam device, the then this beam of weighing can be that that describe in No. 590520 patent of Australia is a kind of.

In multi-load measure to be used, a pair of like this beam of weighing is used in the both sides that plate case for example or livestock pass through to be had under the narrow passage of hedge.

In the application that comprises dynamic load or changing load, particularly in the weighing of live animal such as for example livestock, there are some shortcomings in the beam of weighing of the above-mentioned type.

Under a pair of beam of weighing being placed under the narrow passage that livestock passes through or placing it in situation under some animals of running, the bar of must will weighing be placed on member on the perpendicular direction of the principal direction of animal movement.This motion bar that causes weighing rolls on its longitudinal axis, particularly uses under the situation of dynamometer at the beam of weighing, and this rolling can produce that do not expect and the moment of torsion property damaged.And the said load that is added on the sensor, can cause unacceptable weighing results and make device damage.When equipment uses the described the sort of bent beam sensor of above-mentioned patent, outstanding above this problem does not resemble, but a kind of like this needs of existence are still promptly avoided the problems referred to above and a kind of device required precision, simple, durable and economic that has are provided.

Load-measuring device of " bent beam sensor " expression described in this instructions, wherein bearing capacity and reacting force all are added on the beam that keeps equilibrium state, these power that are applied on each power transmission apparatus separate each other on the length direction of beam, and measured in the selected scope on beam.Cause the stress in the beam to rise owing to these power make beam deflection, and this stress is directly proportional with distance between described scope and the power transmission apparatus.The beam of this sensor of use that the instructions entire chapter is described is known as " bent beam weigh bar ".

For ease of reference, two bent beam sensor and a pair of dynamometers that link to each other with shared load receiving member in the whole instructions will be called as " alignment sensor ", deriving with the output of this sensor is placed on load value on the member, and the reference direction of sensor is for bent beam the weigh length direction or the linear right direction of dynamometer that connects of bar.

Therefore, " alignment sensor " that comprised in the description is meant the sensor that comprises the stress measurement scope here, this stress measurement scope is between imposed load district and supporting area, in fact these zones are positioned on the same axle, and the reference direction of this sensor is for the direction of common axis.

An example of the alignment sensor of the above-mentioned type is known shear beam dynamometer.

The present invention belongs to the weighing device with longitudinal axis haply, said device is supported on a pair of alignment sensor defined herein, sensor is located at basically near on each end of said member, and each said sensor is in the axial location that intersects with said longitudinal axis.

The present invention also belongs to a kind of weighing device that comprises the weight receiving member, this weight receiving member is used for the weighing of dynamic loading when obviously making member be subjected to impulse force with first direction loading of aiming at substantially of member, described member is by four alignment sensor supportings of this paper definition, in by each quadrant in described four quadrants determining by the axle and the perpendicular axle of member length mid point such sensor is set, each this sensor all is supported in the two side areas with described first perpendicular axle.

Present invention is described by way of example for the several embodiment that below will be only provide in reference to the accompanying drawings.

Fig. 1 is the weighing device planimetric map according to first embodiment of the invention;

Fig. 2 is the side view of device shown in Figure 1;

Fig. 3 is a partial sectional view of taking from Fig. 1 center line 3-3 direction;

Fig. 4 is the flat sheet of the bottom view of weighing device shown in Figure 1;

Fig. 5 is the planimetric map of second embodiment of the invention;

Fig. 6 is the partial side view of device shown in Figure 5;

Fig. 7 is the planimetric map of another embodiment of the present invention;

Fig. 8 is a cut-open view of taking from Fig. 7 center line 8-8;

Fig. 9 is the schematic plan view that embodies weighing device use-pattern of the present invention;

Figure 10 is the planimetric map of another embodiment of the present invention;

Figure 11 is the planimetric map of another embodiment of the present invention;

Figure 12 is a partial sectional view of taking from Figure 11 center line 10-10;

Figure 13 is a partial sectional view of taking from Figure 11 center line 11-11;

Figure 14 is the planimetric map of another embodiment of the present invention.

In embodiments of the invention shown in Fig. 1-4, the two ends of steel channel beam 20 are installed on the perpendicular positioning sensor stand 21 that is formed by similar channel-section steel.

Being contained in each support 21 is the sensor that is made of bent beam 23, and foil gauge element 24 is housed on the bent beam.As related in the prior art, beam 23 is fixed on support 21 and the basic part 25 by means of elastic load Transmission Part 26.The constituent material of part 26 and mode are preferably abideed by the instruction of Australian patent application number 33534/89.

Basic part 25 among this embodiment is made of the steel plate of two ends welding, and bead 27 extends beyond steel plate so that parts are fixed on floor or other surface in case of necessity.

The bolt 28 that is fixed on the elastic component 26 is fixed to these elastic components on support 21 and the basic part 25.Do not protrude into for the nut that makes the bolt outer end on the surface of support 21 and basic part 25, between the web of top elastic component 26 and support 21, be provided with packing ring 29 so that top nut is placed in the hole 30 in the support web, and lower nut is placed in equally in the hole 31 of bead 27.

Foil gauge parts 24 on each beam 23 by be connected so that proofread and correct the output of alignment sensor in lead (not shown) that balancing circuitry links carries out with respect to specified load.

So far, the channel-section steel that uses in the member of described device provides enough structure length and rigidity, avoids producing the enclosure space that helps to keep the impurity with heavy corrosion effect simultaneously.This schematic structure has easy maintenance.For example, part 26 is fixed to two nuts on the basic part 25 and nut is removed so that it is laid down just fully from upper bolt can easily overhaul sensor by removing.

Fig. 5 and Fig. 6 represent a modified example, and this modified example approaches a kind of like this weighing device, and this device has identical basic geometry with the device of Fig. 1 to Fig. 4.In this second embodiment, flute profile central body portion 40 is preferably between the horizontal end block 41 that is formed by angle steel extends, and has horizontal bead 42 and vertical web 43 on the angle steel.

Bent beam weigh bar in the mode that is similar to first embodiment by means of elastic load Transmission Part 26 support flanges 42.

The bar 24 of weighing is bearing on the angle steel 44 that is made of bead 45 and vertical web 46 equally, and it plays the effect of mechanically protecting sensor device by means of steel plate 41.Described in first embodiment, sensor device is fixing by bolt 28.

Bead 48 is installed links to each other with bead 42, the packing ring that forms part 26 on the bead 42 also allows to go up bolt and nut and is hidden in the hole 47, is arranged on the bead 45 and bead 48a is installed, and packing ring 49 can make down bolt and nut remain in the hole 50 of bead 45 and bead 48a.

In Fig. 7 and device shown in Figure 8, with the anti-phase location of lateral member, and each part 21 is equipped with a shear beam dynamometer 60, should locate by mode shown in the figure according to dynamometer of the present invention.Part 21 is bearing on the dynamometer 60 by means of elastic load Transmission Part 61, and is fixed on the basic part 25 with for example such conventional components of pair of bolts (not shown).

Fig. 9 represents a kind of typical application of the present invention, and the slype 51 that passes through for livestock is bearing on the related the sort of device of a pair of Fig. 1-4.Can see that this being arranged on animal is moved major axes orientation with dynamic loading has inherent stability, this stability is better than the stability that the described device of prior art is obtained.Yet, when continuing to use inexpensive elastic load Transmission Part, can obtain bigger loading transfer ability and shear resistance by using 4 short bent beam sensors, and not reduce the linearity.

Under the situation that does not change the principle of the invention, can make multiple apparatus structure.For example load Transmission Part 10 and support 11 can be the steel in channel-section steel or other cross section, and part 10 can be telescopic so that adjust the size of different loads, or other is easy to the cross section structure of casing and transporting.

Figure 10 represents a kind of like this layout, and wherein sensor stand 21 is releasably attached to the end of beam 20, for example by means of bolt channel-section steel 52 is tightened to the end of beam 20.

As previously described, the alignment sensor that is used for the embodiment of the invention needn't be the bent beam type, and they can resemble the shear beam dynamometer and constitute for example by a pair of dynamometer, and each is fixed on each end of support 21 dynamometer.Best, with shear beam location, their longitudinal axis is on the axis of support 21 or be parallel to the axis of support 21.

At the parts that bent beam is installed, flexible member 26 can be made of other load transmission and fulcrum arrangement.For example, can use bolt as the band resilient bushing described in the application documents of Australian Patent numbers 590520.In a kind of simple especially layout, though there is not resilient bushing can make set bolt easily frayed, the very short life-span arranged and accurate weighing can not be provided, but can be used to reduce the price of set bolt.Figure 11-13 represents a kind of like this layout, and wherein load is applied on the beam 23 through bolt 53, the bead interlock mutually of bolt 53 and support 21, and also this beam is by being located on the basic part 25 and bead 55 bolt 54 supportings of interlock mutually.

Figure 14 represents an alternative embodiment of the invention, and this embodiment has developed the method that Figure 10 comprised.Like this, the slype 56(or other device that pass through for livestock) steel pipe bolt 57 is housed, steel pipe is fixed on the passage that livestock passes through through welding.Support 21 is equipped with steel-tube seat 58, and the processing dimension of this base is suitable for the tight slip of bolt 57, and this bolt and steel seat are provided with the hole and accept clamping screw after being used for being connected to support on the passage.Like this, the passage 56 that passes through of livestock has replaced the load conveying objects with in the above-described embodiments.

Claims

1, the weighing-appliance that has a longitudinal axis, an elongate articles is positioned on the described axle, described equipment is bearing on a pair of alignment sensor as herein defined, basically fixing a described sensor near each end place of described elongate articles, each described sensor all is positioned on the axle that intersects with described longitudinal axis.

2, according to the equipment of claim 1, wherein said sensor in fact with the perpendicular direction of the described longitudinal axis on locate.

3, according to the equipment of claim 1 or claim 2, further comprise a pair of adjacent with the two ends of elongate articles respectively lateral member, described lateral member is by each sensor supporting.

4, according to the equipment of claim 3, wherein said each lateral member all comprises channel member, and channel member constitutes by web with from the downward described bead of extending of web.

5, according to the equipment of claim 4, wherein each alignment sensor comprises bent beam that this paper the defines bar of weighing, and the bar of weighing is connected with each lateral member by its loading force transmitting device.

6, according to the equipment of claim 5, wherein the loading force transmitting device of each bar of weighing all is an elastic component, the web interlock mutually of described elastic component and each lateral member.

7, according to each equipment in the claim 2 to 5, further be included in the basic part that each lateral member is extended below, each described sensor is all by each basic part supporting.

8, according to the equipment of claim 3, wherein each described sensor comprises a shear beam dynamometer.

9, according to the equipment of claim 8, wherein said basic part extends under the member of described equipment at least in part, the weight response when limiting described lateral member thus and moving downward.

10, according to the equipment of claim 8 and 4, wherein said basic part extends below a described bead at least in part.

11, according to the equipment of claim 5, wherein the loading force transfer element of each bar of weighing is a bolt, each bead interlock mutually of described loading force transfer element and each lateral member.

12, according to the equipment of claim 3, wherein said lateral member is an angle steel, and each angle steel comprises the web of a top basic horizontal and the one-sided bead of extending from an edge of web downwards.

13, according to the equipment of claim 12, further be included in the basic part that each lateral member is extended below, described basic part is an angle steel, it comprise basic web and away from a side of upper lateral part side flanges from the upwardly extending bead of basic web.

14, according to the equipment of claim 12, the wherein web interlock mutually of each alignment sensor and each lateral member.

15, according to the equipment of claim 14, wherein each alignment sensor comprises bent beam that this paper the defines bar of weighing, and the bar of weighing links to each other with each web by its loading force transmitting device.

16, according to the equipment of claim 15, wherein each sensor links to each other with basic web by its reacting force transmitting device.

17, according to the equipment of claim 16, further comprise with one of described bead mutually interlock to limit the device that described lateral member moves to described basic part.

18, according to each equipment of claim 3-7, wherein said lateral member is detachably fixed on the described elongate articles.

19, according to the weighing-appliance of aforementioned arbitrary claim, comprise a pair of device and a load receiving member, described device supports described load receiving member by extending under the load receiving member, the longitudinal axis of described a pair of device is equally with respect to described member location.

20, according to the weighing-appliance of claim 19, the dynamic load that wherein said load receiving member is accepted has the obvious variation component on assigned direction, and described a pair of device is located being substantially perpendicular on the longitudinal axis of described direction.

21, weighing-appliance, comprise the weight receiving member that is used for the weighing dynamic load, dynamic load is the impulse force load of obviously aiming at substantially with first of member that the weight receiving member bears, described member is by the alignment sensor supporting of four this paper definition, in each quadrant of four quadrants determining by described first and its Z-axis, such sensor is set, Z-axis is by along the mid point of described first member length, and each sensor all is bearing in each territory, lateral areas with described first perpendicular axle.

22, according to the equipment of claim 18, wherein each sensor is by removably firm being installed on the described member of support.

23, with reference to accompanying drawing 1-4,5-6,7-8,9,10,11-13 or 14 actual equipment of describing.