A kind of three-dimensional arrangement device for measuring force
Technical field
The utility model is related to force cell technical field, and in particular to a kind of three-dimensional arrangement device for measuring force.
Background technology
Three-dimensional force sensor uses resistance-strain principle, also referred to as strain-type three-dimensional force sensor.Answered by flexible member, resistance
Become meter and wheatstone bridge circuits composition.The weight of weighed object, which is acted on flexible member, makes it deform and produce dependent variable,
The dependent variable being directly proportional in weight of object is converted into resistance variations by the strain ga(u)ge being pasted onto on flexible member, then passes through favour
Resistance variations are converted into voltage output by stone bridge circuit, and this voltage output value will be measured by display instrument, you can completed
Measurement task.
Disclose a kind of three-dimensional force transducer in the prior art, including platen and installed on the outside of platen three one
Sensors A, B, C are tieed up, as shown in Figure 1.Three one-dimensional sensors are embedded in the cylinder along X-axis, Y-axis and Z-direction respectively
On.According to Hooke's law, deformed after cylinder stress, three one-dimensional sensors deform respectively, and sensor passes through electricity
The change perception deflection x, deflection x of resistance and the power F of the direction meet F=kx (k is constant), so as to calculate along X-axis, Y
The size of the power of axle and Z-direction.
In motor vehicle detecting field, it is necessary to the automobile of traveling is parked in the detection plate of a certain FX, automobile is detected
In vertical direction, the gravity (z directions) measured by sensor B, brake force (the y side measured in the horizontal direction, by sensor C
To), and the skid force (x directions) measured in the horizontal direction, by sensors A.
But, as shown in Fig. 2 platen upper surface stress is downwards after compression, because overall volume is constant so that platen can be to
X and y directions dilatancy, therefore, is not stressed even in x directions and y directions, but the sensor in x directions and y directions can still be produced
Signal, i.e. Fx can be influenceed with Fy by Fz, can be disturbed between three power that now sensor is obtained, and occur retinoic acid syndrome
Phenomenon, is commonly called as mutual interference, causes the data precision obtained by three-dimensional force transducer inadequate.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome the one of three-dimensional force transducer of the prior art
Occur retinoic acid syndrome between dimension sensor, influence the defect of ultimate measurement accuracy.
Therefore, the utility model provides a kind of three-dimensional arrangement device for measuring force, including:Platen, is cube;Some levels are passed
Sensor, below the platen and parallel to the horizontal length of side of the platen;Some vertical sensors, are vertically mounted on institute
State below platen;Level connection joint support with installation through-hole, the two ends of each horizon sensor are respectively arranged with level
Connecting bracket, the horizon sensor can be only connected with the installation through-hole around the axis rotatable engagement of the installation through-hole, institute
Level connection joint support is stated to be fixedly connected with the platen.
Rolling bearing is fixedly installed in the installation through-hole.
The side wall of the installation through-hole constitutes the outer ring of the rolling bearing, the inner ring of the rolling bearing and the level
The end secure fit of sensor.
Described three-dimensional arrangement device for measuring force also includes the vertical connection bearing for being arranged on the vertical sensor two ends, institute
State vertical sensor only can around it is described it is vertical connection bearing axis rotation, be arranged on top vertical connection bearing with described
Plate is fixedly connected.
The horizon sensor includes the first level sensor parallel with long side, and parallel with broadside second
Horizon sensor.
The floor perpendicular with the platen is fixed with below the platen, the level connection joint support is consolidated with the floor
Fixed connection.
Described three-dimensional arrangement device for measuring force also includes fixed plate, is arranged on below the vertical sensor, is arranged on bottom
The vertical connection bearing in portion is fixedly connected with the fixed plate.
The vertical sensor outer sheath provided be connected with the floor and with platen sheath connected vertically,
The sheath cover is buckled on the described first vertical connection bearing.
It is connected with the floor in limiting plate, the fixed plate and is welded with fastening chamber, the limiting plate gos deep into the button
Close in chamber, to prevent from separating between the platen and the fixed plate.
The limiting plate includes:Horizontal part, is reclined by screw and is fixed on the floor;Dead bolt, dismountable connection
On the horizontal part, and go deep into the fastening intracavitary portion.
The vertical sensor is four, and is evenly distributed on the corner of the platen.
The level connection joint support is oscillating bearing with the vertical connection bearing.
Technical solutions of the utility model, have the following advantages that:
1. foil gauge, in the prior art, is attached to by the three-dimensional arrangement device for measuring force that the utility model is provided using paster method
On platen, after platen dimension stress in office, platen can deform, and cause the foil gauge of other two dimensions to occur shape
Become, even if now other two dimensions do not have stress, the dimension also has signal output, and such case is called retinoic acid syndrome.
The combination device for measuring force provided using the utility model, the level connection joint support with installation through-hole is each described
The two ends of horizon sensor are respectively arranged with level connection joint support, and the horizon sensor only can be around described with the installation through-hole
The axis rotatable engagement connection of installation through-hole, the level connection joint support is fixedly connected with the platen.When the platen by
After the power in vertical direction (z-axis) direction, now can occur downward motion at the stress point of the platen, but due to x-axis and y-axis
The horizon sensor in direction can be only connected with the installation through-hole around the axis rotatable engagement of the installation through-hole so that the water
Sensor keeps stable, will not be stretched or extrude, therefore the horizon sensor of x-axis and y-axis will not send signal, so that
The occurrence of avoiding retinoic acid syndrome.
2. the three-dimensional arrangement device for measuring force that the utility model is provided, described three-dimensional arrangement device for measuring force also includes being arranged on
The vertical connection bearing at the vertical sensor two ends, the vertical sensor can only revolve around the axis of the vertical connection bearing
Turn, the vertical connection bearing for being arranged on top is fixedly connected with the platen.
By the vertical connection bearing, the deformation of the platen in the horizontal direction can be dissolved so that vertical sensor
The power positioned at vertical direction can only be monitored, is conducive to improving measurement accuracy, reduces and even eliminate retinoic acid syndrome or mutual interference.
3. it is connected with limiting plate, the fixed plate on the three-dimensional arrangement device for measuring force that the utility model is provided, the floor
On be welded with fastening chamber, the limiting plate gos deep into the fastening chamber, to prevent from sending out between the platen and the fixed plate
It is estranged from.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the connection signal between the foil gauge of prior art and platen referred in the utility model background technology
Figure;
Fig. 2 be the utility model background technology in refer to occur retinoic acid syndrome when the platen deformation schematic diagram;
The top view for the three-dimensional arrangement device for measuring force that Fig. 3 provides for the utility model;
The front view for the three-dimensional arrangement device for measuring force that Fig. 4 provides for the utility model;
It is vertical described in the three-dimensional arrangement device for measuring force that Fig. 5 provides for the utility model to connect bearing and described vertical
The connection diagram of sensor;
Described in the three-dimensional arrangement device for measuring force that Fig. 6 provides for the utility model between limiting plate and the fastening chamber
Structural representation.
Description of reference numerals:
1- platens;The vertical sensors of 2-;3- connects bearing vertically;5- first level sensors;The horizon sensors of 6- second;
7- floors;8- level connection joint supports;9- fixed plates;10- sheaths;11- limiting plates;111- horizontal parts;112- dead bolts;12- is fastened
Chamber.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As long as in addition, technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can just be combined with each other.
Embodiment 1
The present embodiment provides a kind of three-dimensional arrangement device for measuring force, as illustrated in fig. 1 and 2, including:Platen 1, is cube;If
Solid carbon dioxide sensor, installed in the lower section of platen 1 and parallel to the horizontal length of side of the platen 1;Some vertical sensors 2,
It is vertically mounted on the lower section of platen 1;Level connection joint support 8 with installation through-hole, the two ends of each horizon sensor
Be respectively arranged with level connection joint support 8, the horizon sensor and the installation through-hole only can around the installation through-hole axis
Rotatable engagement is connected, and the level connection joint support 8 is fixedly connected with the platen 1.Specifically, the lower section of platen 1 is fixed with
The perpendicular floor 7 with the platen 1, the level connection joint support 8 is fixedly connected with the floor 7.
The combination device for measuring force provided using the present embodiment, the level connection joint support 8 with installation through-hole, each water
The two ends of sensor are respectively arranged with level connection joint support 8, and the horizon sensor only can be around described with the installation through-hole
The axis rotatable engagement connection of installation through-hole, the level connection joint support 8 is fixedly connected with the platen 1.When the platen 1 by
To after the power in vertical direction (z-axis) direction, can now occur downward motion at the stress point of the platen 1, but due to x-axis and
The horizon sensor in y-axis direction can be only connected with the installation through-hole around the axis rotatable engagement of the installation through-hole, now platform
Plate 1 will be absorbed in the deformation of vertical direction by level connection joint support 8 so that the horizon sensor keeps stable, will not be by
Stretching is extruded, therefore the horizon sensor of x-axis and y-axis will not send signal, so that the occurrence of avoiding retinoic acid syndrome.
Identical reason, when the x-axis of platen 1 is by active force, y-axis and z-axis will not receive disturbing for x-axis travel direction power
It is dynamic.
Meanwhile, as shown in figure 5, the described three-dimensional arrangement device for measuring force that the present embodiment is provided also includes being arranged on described erect
Direct transfer the vertical connection bearing 3 at the two ends of sensor 2, the vertical sensor 2 only can around the vertical connection bearing 3 axis rotation
Turn, the vertical connection bearing 3 for being arranged on top is fixedly connected with the platen 1.
By the vertical connection bearing 3, the deformation of the platen 1 in the horizontal direction can be dissolved so that vertical sensing
Device 2 can only monitor the power positioned at vertical direction, be conducive to improving measurement accuracy, reduce and even eliminate retinoic acid syndrome.
Specifically, as shown in figure 4, being fixedly installed rolling bearing in the installation through-hole.The side wall of the installation through-hole
Constitute the outer ring of the rolling bearing, the end secure fit of the inner ring of the rolling bearing and the horizon sensor.
In the present embodiment, the horizon sensor includes the first level sensor 5 parallel with long side, and and broadside
The second parallel horizon sensor 6.
Specifically, in motor vehicle detecting field, it is necessary to the automobile of traveling is parked in the detection plate of a certain FX, inspection
Survey automobile the gravity of vertical direction, brake force in the horizontal direction and in the horizontal direction with the vertical side of braking force direction
Sliding power.
In the present embodiment, the brake force of motor vehicle is measured by first level sensor 5, passes through the second horizon sensor
6 measure the skid force of motor vehicle.The gravity of motor vehicle is measured by the vertical sensor 2.And the coupling between these three power
Effect is relatively low.
In the present embodiment, described three-dimensional arrangement device for measuring force also includes fixed plate 9, is arranged on the vertical sensor 2
Lower section, the vertical connection bearing 3 for being arranged on bottom is fixedly connected with the fixed plate 9.
The fixed plate 9 is cast in concrete, or is connected with ground.Meanwhile, the vertical outer sheath of sensor 2
Provided be connected with the floor 7 and with the platen 1 sheath 10 connected vertically, the sheath 10 cover is buckled in described first
On vertical connection bearing 3.
As shown in fig. 6, in order that the platen 1 is connected as a single entity with the fixed plate 9, in the present embodiment, the floor 7
On be connected with limiting plate 11, the fixed plate 9 be welded with fastening chamber 12, the limiting plate 11 go deep into it is described fastening chamber 12 in,
To prevent from separating between the platen 1 and the fixed plate 9.
Specifically, the limiting plate 11 includes:Horizontal part 111, is reclined by screw and is fixed on the floor 7;Dead bolt
112, it is removably attachable on the horizontal part 111, and go deep into inside the fastening chamber 12.
In the present embodiment, the vertical sensor 2 is four, and is evenly distributed on the corner of the platen 1.Described
One horizon sensor 5 is two, is arranged on the wheel position of motor vehicle.Second horizon sensor 6 is one, is arranged on two
Between individual first sensor.But, the quantity of the first level sensor 5 and second horizon sensor 6 is not limited to
The number that the present embodiment is provided, can be added and subtracted according to the use environment of three-dimensional arrangement device for measuring force.
Embodiment 2
The present embodiment is made on the basis of embodiment 1, wherein the level connection joint support 8 and the vertical connection
Bearing 3 is oscillating bearing.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.