A kind of dynamic measuring chain scraper conveyor with two-dimentional function of weighing
Technical field
The utility model is related to chain scraper conveyor, the specifically chain scraper conveyor with dynamic weighing function.
Background technology
Chain scraper conveyor is the handling machinery to squeezer continuous conveying sugarcane silk, and the direct shadow of stability of its amount of feeding is to pressing
Squeeze the stability and efficiency of process, production scheduling, subsequent technique control, dynamical system, therrmodynamic system, energy loss to full factory
There are different influences with product quality etc..Therefore, the balanced conveying of sugarcane silk plays very crucial effect to cane sugar factory, sugar
Factory should carry out quantitatively entering to squeeze according to daily squeezed quantity index, ensure that whole expressing process is safe efficient, smoothly carry out again, to the greatest extent
Amount reduces the speed governing frequency of squeezer, effectively to reduce the fault rate of squeezer.However, due to sugarcane it is broken after size,
Length, loosening degree, sugarcane thickness degree, surface smoothness are uneven and cause the sugarcane silk weight on conveyer uneven, so as to need
The feed speed of conveyer is adjusted, to ensure the uniform and stable of its amount of feeding.Chain scraper conveyor is in constantly regulation conveying speed
During degree, the tractive force meeting time changing of carrier bar, so as to produce interference to the Weighing of sugarcane silk, is particularly opened in conveyer
Moment that is dynamic and stopping, the suddenly change of tractive force produces huge acceleration, and the interference to material metage is very big.Cause
This, tractive force change and the percussion of inertia force in speed regulation process be can not ignore to the interference weighed.
Application No. CN200820047352.2 Chinese patent proposes a kind of metering chain scraper conveyor, and it includes chain
There is the one section of independent measure for being provided with force cell section in sheet conveying belt, drive mechanism and support rails, support rails, in chain
Velometer, velometer, force cell and microcomputer or singlechip controller connection are installed by plate conveyer or in drive mechanism, it is micro-
Machine or singlechip controller are configured with measuring software realization and weighed, and wherein force cell has generally included stress elastic component, by
Power elastic component include it is one or more can produce the elastomer of deformation after stress, elastomer is provided with sensing the elasticity bodily form
The resistance strain gage of variable, after being acted on by external force, elastomer is put into the resistance variations that deformation causes resistance strain gage, resistance
Change causes the circuit output one that it is connected and the electric signal of the linear change of external force, finally detects external force numerical value, existing
Force cell only measured in one direction so that above-mentioned metering chain scraper conveyor is not examined in terms of scale structure
Consider the influence that slope conveyor is caused in acceleration, deceleration, impact shock to force cell, therefore there is further improvement and carry
High necessity.
The content of the invention
The balanced purpose conveyed is required in order to realize that sugar refinery is quantitatively squeezed, for the existing chain scraper conveyor Weighing in sugar refinery
The deficiency that device is present, the utility model proposes a kind of dynamic measuring chain scraper conveyor with two-dimentional function of weighing, it has
The characteristics of having high, the easy to operate degree of accuracy, highly versatile, available for cement, coal, coking, steel, mine, generating, chemical industry,
Conveying in the industries such as food is quantitatively conveyed.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of dynamic measuring chain scraper conveyor with two-dimentional function of weighing, its include conveyer belt, 2 chain guides,
Dynamic metering device and controller, the conveyer belt include belt body and are symmetrically set in 2 of belt body both sides
Ring chain, 2 chain guides are symmetrical arranged, and the top of the chain guide has chain walking sliver, 2 rings of conveyer belt
Shape portion of chain is respectively placed on 2 chain guides, and chain can be moved along chain guide, is passed near the conveyer belt provided with speed
Sensor, every chain guide is divided into 3 sections, and it is followed successively by guide rail leading portion, guide rail metering section and guide rail back segment, guide rail leading portion and guide rail
Back segment is fixed by guide rail supporting frame support respectively, and guide rail metering section is supported by dynamic metering device, and dynamic metering device is by supporting
Post is supported.
The dynamic metering device includes guide rail link and the two-dimentional Weighing device of at least one;The two dimension claims
Metering device includes 2 force cells, sensor base and plummer, wherein 1 force cell is vertical as surveying
Force snesor, another 1 force cell is used as the horizontal force snesor of survey;Sensor base is to be mutually perpendicular to connect by bottom plate and side plate
Connect the angular plate of composition;The force cell includes stress elastic component, one end of the stress elastic component for force side simultaneously
It is fixing end to connect stressed member, the other end, and force cell is born by the deformation extent output stressed member of stress elastic component
External force;The fixing end for surveying vertical force snesor is fixedly connected on the bottom plate of sensor base, surveys the stress of vertical force snesor
When the bottom surface that part activity is connected to plummer makes the stress elastomer of the vertical force snesor of survey be acted on by vertical direction external force
Deformation;The fixing end of the horizontal force snesor of survey is fixedly connected on the side plate of sensor base, its stressed member activity is connected to and held
The side of microscope carrier is deformed upon when the stress elastomer of the horizontal force snesor of survey is acted on by horizontal direction external force.
The stress elastomer of the vertical force snesor of survey of two-dimentional Weighing device is placed vertically, the bottom plate of sensor base
It is fixedly connected with the top of support column.
The guide rail link is connected and composed by connecting rod, the top of the guide rail link and the guide rail meter of chain guide
The connection of amount section, bottom are connected with the plummer of two-dimentional Weighing device.
Velocity sensor, the horizontal force snesor of survey of two-dimentional Weighing device and the vertical force snesor of survey are electrically connected
To controller.
The stressed member that vertical force snesor is surveyed in prioritization scheme, the two-dimentional Weighing device is movable steel ball and passed through
Bearing plate is connected to the force side of stress elastic component, and the end face of the bearing plate has arc groove, the movable steel
Ball is movably placed in the arc groove of bearing plate, and the bottom surface of plummer has arc groove, and the movable steel ball activity is abutted
In the arc groove of plummer.
The stressed member that horizontal force snesor is surveyed in further prioritization scheme, the two-dimentional Weighing device is with screw rod
Ball nut or screw rod multi-directional ball and by screw rod connect stress elastic component force side, the ball nut with screw rod or
Screw rod multi-directional ball activity is connected to the side of plummer.
The edge of the plummer of two-dimentional Weighing device has symmetrical in further prioritization scheme, the utility model
Be provided with 2 plummer perforation, the bottom plate of sensor base has with the corresponding locating dowel of plummer perforation, the locating dowel
The coaxial thread jack with plummer perforation, activity is plugged in 2 stay bolts through 2 plummers perforation, its lower half respectively
In the thread jack of locating dowel, the top of the stay bolt, which has, is located at plummer and locating dowel on top nut or/and stay bolt
Between have lower end nut.
Further prioritization scheme, force cell described in the utility model is resistance-strain type of dynamometer sensor, its
Stress elastic component is provided with electricresistancestraingauge, force cell by the electricresistancestraingauge on stress elastic component changing value output by
The external force that power part is born.
Two-dimentional Weighing device can also use following structure in the utility model.
(1)The two-dimentional Weighing device includes 4 and is located at chain guide by guide rail link and support column
Guide rail metering section lower section, wherein 2 two-dimentional Weighing devices be 1 group and before and after set, 2 two-dimentional Weighings in addition
Device is another 1 group and front and rear setting, and two groups of two-dimentional Weighing devices are being symmetrically set in 2 guide rail metering sections of chain guide just
Lower section or be symmetrically set in chain guide 2 guide rail metering sections lower outer or be symmetrically set in 2 guide rails of chain guide
On the inside of the lower section of metering section.
(2)The two-dimentional Weighing device includes 2, and described 2 two-dimentional Weighing devices are connected by guide rail
Before and after frame and support column point in the middle part of the lower section of the guide rail metering section of chain guide.
(3)The two-dimentional Weighing device includes 2, and described 2 two-dimentional Weighing devices are connected by guide rail
Frame and support column are symmetrically set in both sides below the middle part of the guide rail metering section of chain guide.
The two-dimentional Weighing device installed on guide rail metering section of the present utility model, it is surveyed vertical force snesor and surveys water
Flat force snesor constitutes a two-dimentional dynamometry system, as shown in figure 11, and q is conveyer belt angle of inclination in Figure 11, in tractive force
Conveyer belt and material on effect lower guideway metering section are pulled power F effect and moved obliquely with speed v, and tractive force is in water
Component Fx, in the vertical direction square are produced upwards and produces component Fy, and it is outer that the stress elastic component of the horizontal force snesor of survey is subject to
Power is the component Fx that tractive force is produced in the horizontal direction, and the horizontal component Fx that the horizontal force snesor of survey measures tractive force is X,
According to Fx=Fcosq, Fy=Fxtanq, Fy=Xtanq is drawn;That surveys that the stress elastic component of vertical force snesor is subject to is outer
Power is that guide rail link, guide rail metering section and conveyer belt and the gravity of material on guide rail metering section subtract the vertical of tractive force
Component Fy, the measured value for surveying vertical force snesor is Y, i.e. Y=GFrame+ GLead+ GBand+ GThing- Fy, according to G=mg, Fy=Xtanq,
Draw mThing=[(Y+Xtanq)/ g]-mFrame- mLead- mBand.Wherein GFrame、GLead、GBand、GThingRespectively guide rail link, guide rail metering
The gravity of material, m in section, guide rail metering section upper conveyor belt, guide rail metering sectionFrame、mLead、mBand、mThingRespectively guide rail link, guide rail
Metering section, guide rail metering section upper conveyor belt, on guide rail metering section material quality, mFrame、mLead、mBandQuality in advance measurement draw,
Calculate the quality m of material on guide rail metering sectionThing。
The length of guide rail metering section is L, when conveyer is run, and instantaneous conveying capacity p is equal to the thing of unit length on conveyer belt
Expect by the material total amount M of chain scraper conveyor to be equal in the linear velocity v of weight q and conveyer product, a period of time t and instantaneously flow
Measure accumulated values of the p in this period, i.e. M=pt=qv t=(mThing/L)V t, material is obtained by the formula operation
Cumulative weight M, the man-machine interface electrically connected by controller is displayed.
The utility model has following substantive distinguishing features and progress.
1st, the two-dimentional Weighing device installed on guide rail metering section of the present utility model is provided with the horizontal force snesor of survey
With the vertical force snesor of survey, conveyed when of the present utility model with shock loading or adjustment transporting velocity so as to cause tractive force
When changing, the change of the horizontal sensor readings of survey can reflect shock loading or tractive force change to surveying vertical force sensing
The influence of device metering, calculated according to the measured value for surveying vertical force snesor and the horizontal force snesor of survey obtain have shock loading or
The actual weight of material under influence of tractive force, metering precision is high, with Weighing directly, reliable, accuracy it is high and stably
The characteristics of property is good.
2nd, the movable steel ball that vertical force covers disposed on sensor is put is surveyed in the utility model, makes plummer that there is the work(of automatic aligning
Can, force cell is remained vertical state of weighing;Survey horizontal force snesor can by the ball nut with screw rod or
Screw rod multi-directional ball and plummer movable contact, frictional force are minimum, when its stressed member is screw rod multi-directional ball, on vertical direction
Interference is almost nil, can effectively improve the accuracy in detection for surveying vertical force snesor and the horizontal force snesor of survey.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the structural representation of dynamic metering device in Fig. 1 structures.
Fig. 3 is the main view view of two-dimentional Weighing device in Fig. 1 structures.
Fig. 4 is the vertical view state schematic diagram of two-dimentional Weighing device in Fig. 1 structures.
Fig. 5 is the electrical connection schematic diagram of two-dimentional Weighing device in Fig. 1 structures.
Fig. 6 be second of structure of the utility model in two-dimentional Weighing device structural representation.
Fig. 7 is the structural representation of dynamic metering device in the utility model the third structure.
Fig. 8 is the 4th kind of structural representation of the present utility model.
Fig. 9 is the structural representation of dynamic metering device in Fig. 8 structures.
Figure 10 is the structural representation of dynamic metering device in the 5th kind of structure of the utility model.
Figure 11 is the traction force analysis schematic diagram that the utility model guide rail metering section upper conveyor belt and material are subject to.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
Referring to figs. 1 to Fig. 5, a kind of dynamic measuring chain scraper conveyor with two-dimentional function of weighing, its include conveyer belt,
2 chain guides, dynamic metering device and controller 9.
The conveyer belt includes belt body 7 and is symmetrically set in 2 ring chains 71,2 of the both sides of belt body 7
Bar chain guide is symmetrical arranged, and the top of the chain guide has chain walking sliver, 2 ring chains 71 of conveyer belt
It is respectively placed on 2 chain guides, ring chain 71 can be moved along chain guide, velocity pick-up is provided near the conveyer belt
Device 70, every chain guide is divided into 3 sections, and it is followed successively by guide rail leading portion 81, guide rail metering section 82 and guide rail back segment 83, guide rail leading portion
81 and guide rail back segment 83 support is fixed by guide rail supporting frame 8 respectively, guide rail metering section 82 is supported by dynamic metering device, dynamic meter
Amount device is supported by support column 85.
With specific reference to Fig. 1 and Fig. 2, the dynamic metering device includes guide rail link 84 and 4 two-dimentional Weighings
Device.Two-dimentional Weighing device is by guide rail link 84 and support column 85 under the guide rail metering section 82 of chain guide
Side;In 4 two dimension Weighing devices, 2 two-dimentional Weighing devices are 1 group of simultaneously front and rear setting, in addition 2 two-dimentional poidometers
It is another 1 group and front and rear setting to measure device, and two groups of two-dimentional Weighing devices are symmetrically set in 2 guide rail metering sections 82 of chain guide
Lower outer;Two groups of two-dimentional Weighing devices can also be symmetrically set in 2 guide rail metering sections 82 of chain guide just under
Side is symmetrically set on the inside of the lower section of 2 guide rail metering sections 82 of chain guide(Do not show in figure).
With specific reference to Fig. 3 and Fig. 4, the two-dimentional Weighing device includes 2 force cells, sensor base 12
With plummer 4, sensor base 12 is that the angular plate constituted is mutually connected vertically by bottom plate and side plate, and the force cell is
Resistance-strain type of dynamometer sensor, it includes stress elastic component 10, and one end of the stress elastic component 10 is force side and company
Capacity part, the other end are fixing end, and stress elastic component 10 is provided with electricresistancestraingauge, and force cell presses stress elastic component 10
On electricresistancestraingauge the external force born of changing value output stressed member.
Wherein 1 force cell is sensed as vertical force snesor 2, another 1 force cell is surveyed as horizontal force is surveyed
Device 3.The stressed member for surveying horizontal force snesor 3 is the ball nut 31 with screw rod(It can also be screw rod multi-directional ball)And lead to
The force side of screw rod connection stress elastic component 10 is crossed, the stressed member of the vertical force snesor 2 of survey is movable steel ball 22 and passed through
Bearing plate 21 is connected to the force side of stress elastic component 10, and the end face of the bearing plate 21 has arc groove 210, institute
Movable steel ball 22 is stated to be movably placed in the arc groove 210 of bearing plate 21.
The fixing end for surveying vertical force snesor 2 is fixedly connected on the bottom plate of sensor base 12, the bottom surface tool of plummer 4
There is an arc groove 210, the activity of movable steel ball 22 for surveying vertical force snesor 2 is connected to the arc groove 210 of plummer 4 and erects survey
The stress elastic component 10 of straight force snesor 2 is deformed upon when being acted on by vertical direction external force;Survey the fixing end of horizontal force snesor 3
It is fixedly connected on the side plate of sensor base 12, its ball nut 31 with screw rod or screw rod multi-directional ball activity are connected to carrying
The side of platform 4 is deformed upon when the stress elastic component 10 of the horizontal force snesor 3 of survey is acted on by horizontal direction external force.
The stress elastic component 10 of the vertical force snesor 2 of survey of two-dimentional Weighing device is placed vertically, sensor base 12
Bottom plate be fixedly connected with the top of support column 85.
The guide rail link 84 is connected and composed by connecting rod, the top of the guide rail link 84 and leading for chain guide
Rail metering section 82 is connected, bottom is connected with the plummer 4 of two-dimentional Weighing device.
With specific reference to Fig. 5, velocity sensor 70, the horizontal force snesor 3 of survey of two-dimentional Weighing device and survey vertical force
Sensor 2 is electrically connected respectively to controller 9.
By cane sugar factory using the dynamic measuring chain scraper conveyor of the present embodiment to exemplified by squeezer continuous conveying sugarcane silk, root
According to the spatial portion office of the usually used chain scraper conveyor of cane sugar factory and stressing conditions, the vertical force snesor of survey is especially considering that
2 effects are the weight of the conveyer belt on weighing material and guide rail link 84, guide rail metering section 82 and guide rail metering section 82 etc.,
Surveying vertical force snesor 2 needs larger quantities journey and carry load, is sensed using common weighing sensor or cantilever-beam force
Device is proper, as the Chinese patent of Application No. 201110449912.3 discloses the dynamometry disclosed in background technology and embodiment
Cantilever beam force sensor disclosed in sensor and the Chinese patent of Application No. 201320546459.2;And survey horizontal force
The effect of sensor 3 is that the stress of horizontal direction when metering material is changed by shock loading or tractive force changes, its range of weighing
And carry load need not be very big, but preferable sensitivity of measurement is needed to sense that shock loading or tractive force are smaller
Change, therefore the horizontal force snesor 3 of survey is proper using S type force cells, such as Application No. 201620555355.1
S types force cell disclosed in Chinese patent;As long as but the installing space of existing chain scraper conveyor is enough and dynamometry is passed
The performance parameter of sensor is suitable, and the visual specific installation environment of those skilled in the art freely selects the class of suitable force cell
Type and model.The utility model, which is realized, directly accurately to be measured into squeezing sugarcane silk weight, and measurement accuracy is better than in ± 0.6% scope
Current sugar refinery chain-plate type sugarcane silk weighing system ± 1%.
Embodiment 2
With reference to Fig. 6, the dynamic measuring chain scraper conveyor and the difference of embodiment 1 with two-dimentional function of weighing of the present embodiment
It is:In the present embodiment, the edge of the plummer 4 of two-dimentional Weighing device has symmetrical 2 plummers perforation 40, sensing
Be provided with the bottom plate of device pedestal 12 has and plummer perforation with plummer 40 corresponding locating dowels 5 of perforation, the locating dowel 5
Activity is plugged in locating dowel to 40 coaxial 50,2 stay bolts 6 of thread jack through 2 plummer perforation 40, its lower half respectively
In 5 thread jack 50, the top of the stay bolt 6 have be located on top nut 61, stay bolt 6 plummer 4 and locating dowel 5 it
Between have lower end nut 62.
Two-dimentional Weighing device is matched somebody with somebody by locating dowel 5 and stay bolt 6 in the dynamic measuring chain scraper conveyor of the present embodiment
Close, play a part of preventing plummer 4 from toppling over, while making plummer 4 that there is certain activity space, will not topple over again, it is excellent
The structure of the dynamic measuring chain scraper conveyor of the present embodiment is changed.
Embodiment 3
With reference to Fig. 7, the dynamic measuring chain scraper conveyor and the difference of embodiment 1 with two-dimentional function of weighing of the present embodiment
It is:The dynamic metering device of the present embodiment includes 2 two-dimentional Weighing devices, described 2 two-dimentional Weighing devices
By being located at before and after 85 points of guide rail link 84 and support column in the middle part of the lower section of the guide rail metering section 82 of chain guide.
Embodiment 4
With reference to Fig. 8 and Fig. 9, the dynamic measuring chain scraper conveyor and embodiment 1 with two-dimentional function of weighing of the present embodiment
Difference be:The dynamic metering device of the present embodiment includes 2 two-dimentional Weighing devices, described 2 two-dimentional poidometers
Amount device is symmetrically set in both sides below the middle part of the guide rail metering section 82 of chain guide by guide rail link 84 and support column 85.
Embodiment 5
With reference to Figure 10, the dynamic measuring chain scraper conveyor and the area of embodiment 1 with two-dimentional function of weighing of the present embodiment
It is not:The dynamic metering device of the present embodiment includes 1 two-dimentional Weighing device, and the two-dimentional Weighing device leads to
Cross guide rail link 84 and support column 85 is symmetrically set in the middle part of the lower section of the guide rail metering section 82 of chain guide.