CN103954323B - High accuracy impact flow meter - Google Patents
High accuracy impact flow meter Download PDFInfo
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- CN103954323B CN103954323B CN201410200021.8A CN201410200021A CN103954323B CN 103954323 B CN103954323 B CN 103954323B CN 201410200021 A CN201410200021 A CN 201410200021A CN 103954323 B CN103954323 B CN 103954323B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 1
- 238000004513 sizing Methods 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 238000004080 punching Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006127 Vicarious substitution reaction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004540 process dynamic Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
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Abstract
The present invention provides a kind of high accuracy impact flow meter, including setting pan feeding guiding gutter thereon, which divides into discharging opening, sets the blanking box for inclining momentum plate in which, also include force cell, it is characterized in that inclining momentum plate by the parallel hinges mechanism supports of its underpart in blanking box, while matched with the force cell outside blanking box by the horizontal power transmission push rod of its sidepiece.The horizontal component being directly proportional to flow that horizontal direction is produced only is accurately transferred to by force cell by the present invention, obtain glitch-free clearly original flow signal, and the perturbed force such as vertical direction component and eccentric impact torsion is then delivered to blanking box bottom natural balance by parallel hinges mechanism, solve the Zero drift in main amplifier brought because moist sizing etc. causes tare weight change, energy long-term stable operation, actual metered precision is within 1%.
Description
Technical field
The present invention relates to a kind of impact flow meter, be one kind can in industrial powder production process continuous dynamic high precision
The impact flow meter of metering, belongs to the flow measurement detection means used in industrial powder is quantitatively conveyed.
Background technology
In the industrial production, often need the powder to conveying in technological process or carefully scattered material carry out dynamic continuous measure,
To reach the purpose for carrying out accurate quantification and control to powder or thin scattered material.Existing punching or slide type effusion meter have knot
Structure is simple, react quick characteristic, but there is structural defect because of force measuring machine and power induction mode so as to be operated in tide
In the rugged environment such as wet, high temperature and vibration, easily make mechanism make moist fouling when tested material passes through, and done force-transmitting relation
Disturb or destroy, cause the serious drift of metering signal or distortion, finally reduce measuring accuracy, it is impossible to stably meet the error within 3%
Require, cause impact plate type flowmeter pleasnt to the eye but of no use, it is impossible to normally play its due metering effect, force many user's conversions
Or use complex structure instead and poorly efficient rotator type, belt-type or spiral metrical instrument carry out dynamic detection metering, while these
Metrical instrument generally belongs to active section integration retarded type and integrally weighs vicariouss structure, and its measuring accuracy is only capable of maintaining 3～5%
Range of error in.It is difficult to meet requirement of the normal process dynamic measuring error less than 1%.Therefore, it is necessary to otherwise designed goes out
The high-precision measuring device of swash plate type operation principle advantage can really be played.
Content of the invention
For overcoming existing impact plate type flowmeter to be difficult in adverse circumstances long-term steady operation because of unreasonable structure not
Foot, the present invention provide a kind of high accuracy impact flow meter for remaining to long-term stable operation in adverse circumstances, and can meet dynamic
Error in dipping is stably held in 1%.
The technical scheme is that：A kind of high accuracy impact flow meter, including setting pan feeding guiding gutter thereon, setting out under which
Material mouth, the blanking box for inclining momentum plate in which, is set, also include force cell, it is characterised in that incline momentum plate and pass through its underpart
Parallel hinges mechanism supports in blanking box, while by the force-measuring sensing outside the horizontal power transmission push rod of its sidepiece and blanking box
Device is matched, with by the horizontal component in dynamic impulse force of the parallel hinges mechanism by material impact on momentum plate and eccentric punching
Hit torsion and vertical stress component is separated, then the horizontal component that separates is passed to by force-measuring sensing by horizontal power transmission push rod
Device, makes force cell only obtain the horizontal component signal being directly proportional to flow, it is to avoid because being turned round by vertical stress component and eccentric impact
The perturbed forces such as power affect and produce null offset, distortion, solve the problems, such as flow misalignment.
The parallel hinges mechanism includes that vertical part, the upper end of the vertical part are fixed with hinge, and the two ends of upper hinge are by upper
Bearing and bearing block are fixed on the fixture of momentum plate, and the lower end of vertical part is fixed with down hinge, under the two ends of down hinge pass through
Bearing and bearing block are fixed on blanking box base plate, so as to support momentum plate in blanking box by vertical part, upper hinge, down hinge
In.
The vertical part is vertical rod or riser, and which constitutes 87-88 angles with horizontal plane, so that momentum plate and vertical part are in level side
A precompression is produced to sensor upwards, prevents from being shaken by external environment condition because mechanical support is in critical balance without when expecting unloaded
The larger zero point of dynamic initiation swings interference.
The fixture includes the riser for being fixed on momentum back, and is fixed on riser bottom and constitutes with momentum plate
45 jiaos of horizontal plate, horizontal plate the inner are fixed on momentum back, are fixed with rod set on the outside of horizontal plate, fixed on the downside of horizontal plate
There are upper bearing (metal) and bearing block, make material after vertically being fallen from guiding gutter naturally, obtain the impact-level component of maximum.
Rod set bolt or grafting on the outside of described horizontal power transmission push rod the inner and fixture horizontal plate, horizontal power transmission are pushed away
Bar outer end is connected with force cell by joint, is delivered to sensor with the impact-level component for guaranteeing only to sense, is kept away
Exempt from eccentric perturbed force and rigid impact of the distortion power to sensor that material is produced during twisted axis axle center in deviation.
The force cell is fixed on horizontal base plate, and the horizontal base plate is fixed on blanking box outer wall by angle steel.
The momentum plate plate face is set to shiny surface, arranges corrosion resistant plate or electric bakelite specifically in momentum plate plate face
Plate, is bonded in momentum plate plate face and affects tare weight under moist operating mode, to reduce material as far as possible.
The central axis of the pan feeding guiding gutter, momentum plate and its parallel hinges mechanism is located at material setting point centre bit
Put, to obtain maximally effective mechanical balance.
The blanking box discharging opening is connected with the switching pipe of two outlets of band, is hinged with turnover panel, with root between two outlets
Wherein one outlet discharge is selected according to the pendulum angle for needing adjustment turnover panel.
The mechanics principle of the present invention is as follows：
After material enters blanking box, with the level altitude drop formed between blanking box and momentum plate, the template that liquidates is produced
Break-in after impulsive force and along incline momentum plate glide, so as on the normal perpendicular to momentum plate plate face produce impulse force F, the punching
Power F is broken down into horizontal component Fh and vertical stress component Fv, and momentum plate gross empty weight is PSkin, the vertical part of parallel hinges mechanism and horizontal plane
Constitute 87-88 angles, the wheelbase between upper and lower hinge is L, such as Fig. 2, then horizontal direction force acting on transducer is:
Fc=Fh+(FV+PSkin)Lsin3/L
=(Fh+FVsin3)+ PSkinsin3
=(Fh+0.052 FV)+ 0.052 PSkin
Wherein, (Fh+0.052FV) it is effective metering power proportional to mass flow, and 0.052 PSkinIt is by tare weight shadow
The null offset amount that rings and produce, operating momentum plate increase because of moist sizing（Or reduce）Tare weight PSkinWhen, the zero of generation
Point drift amount is 0.052PSkin, such as when effective metering power Fh+0.052FV=6kg of normal discharge, even if sizing and increase
（Or reduce）Tare weight PSkinDuring=1kg, its null offset amount 0.052PSkinWith effectively metering power Fh+0.052FV=6kg ratio it is：
0.052PSkin/Fh+0.052FV=0 .052/6=0.87%.During by above calculation specifications momentum plate sizing of the invention, its error can
Control is within 1%.When momentum plate surface smooth, that is, after electric bakelite plate or corrosion resistant plate are set, then after further can reducing humidity
Sizing amount, and then reduce resulting zero drift error.
The present invention has following advantages and effect：By such scheme, after making material enter guiding gutter, with fixed vertical certainly
The vertical speed highly formed by drop clashes into momentum plate, change direction after 45 degree momentum plate surfaces produce elastic collision and edge
The punching surface of inclination is slided, and produces impulse force F in the normal direction of vertical impulse plate plate face, by the parallel hinges below momentum plate
Support and the effect of contraction of mechanism and horizontal power transmission push rod, the horizontal component being directly proportional to flow which is produced in the horizontal direction
Force cell is accurately transferred to, so as to obtain glitch-free clearly original flow signal, and vertical direction component and partially
The perturbed forces such as heart impact torsion are then delivered to blanking box bottom natural balance by parallel hinges mechanism.It is turned into as static tare weight becomes
Vertical direction is used in, the Zero drift in main amplifier for tare weight change being caused by moist sizing etc. therefore and being brought, so that it may by the present invention
Structure and control in the range of very little.Particularly by the micro oscillation operating condition of equality linkage, can be in bad working environments bar
Also the mechanics centrifugation of its level, vertical direction highly can be kept under part, so that it is guaranteed that the horizontal power transmission of horizontal power transmission push rod
Long-term accurate.It is applied to the detection of high/low temperature material, energy long-term stable operation, processing and manufacturing are simple, install easy maintenance, actual
Measuring accuracy can surely up within 1%.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the parallel hinges structural scheme of mechanism in Fig. 1；
Fig. 3 is the mechanics power transmission schematic diagram of the present invention.
In figure, 1 is pan feeding guiding gutter, and 2 is momentum plate, and 3 is parallel hinges mechanism, and 4 is blanking box, and 5 is discharging opening, and 6 are
Switching pipe, 7 is turnover panel, and 8,9 are outlet, and 10 is lower bearing and bearing block, and 11 is upper bearing (metal) and bearing block, and 12 is angle steel, and 13 are
Horizontal base plate, 14 is force cell, and 15 is joint, and 16 is outer housing, and 17 is horizontal power transmission push rod, and 18 is rod set, and 19 is level
Plate, 20 is upper hinge, and 21 is riser, and 22 is down hinge.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described further.
Parts in the present invention if no special instructions, are conventional commercial products.
The high accuracy impact flow meter that the present invention is provided, including set thereon pan feeding guiding gutter 1, its divide into discharging opening 5, in which
If inclining the blanking box 4 of momentum plate 2, also include force cell 14, momentum plate 2 is wherein inclined by the parallel hinges of its underpart
Mechanism 3 is supported in blanking box 4, while by the force cell outside the horizontal power transmission push rod of its sidepiece 17 and blanking box 4
14 is matched；The parallel hinges mechanism 3 includes riser 21, and the upper end of the riser 21 is fixed with hinge 20, upper hinge 20
Forward and backward two ends are fixed on the fixture of momentum plate 2 by upper bearing (metal) and bearing block 11, and the lower end of riser 21 is fixed with down hinge
22, the forward and backward two ends of down hinge 22 are fixed on the base plate of blanking box 4 by lower bearing and bearing block 10, so as to pass through riser
21st, upper hinge 20, down hinge 22 support momentum plate 2 in blanking box 4, and the riser 21 constitutes 87 jiaos with horizontal plane, so that punching
Template 2 and riser 21 produce a precompression to force cell 14 in the horizontal direction, prevent without material unloaded when because of mechanics
Support is vibrated by external environment condition in critical balance and causes larger zero point swing to disturb；The fixture includes being fixed on momentum
The riser at 2 back side of plate, and be fixed on riser bottom and constitute 45 jiaos of horizontal plate 19 with momentum plate 2, horizontal plate 19 is inner solid
Be scheduled on 2 back side of momentum plate, be fixed with the outside of horizontal plate 19 in set the rod set 18 of screw thread, be fixed with the downside of horizontal plate 19 upper bearing (metal) and
Bearing block 11, makes material obtain the impact-level component of maximum from guiding gutter 1 after vertically falling naturally；The horizontal power transmission push rod
18 bolt of rod set on the outside of 17 the inners and fixture horizontal plate 19, horizontal 17 outer end of power transmission push rod is passed with dynamometry by joint 15
Sensor 14 is connected, and the joint 15 is bearing and bearing block, is delivered to dynamometry biography with the impact-level component for guaranteeing only to sense
Sensor 14, it is to avoid eccentric perturbed force that material is produced during 20 axle center of hinge in deviation and rigid distortion power are to force cell 14
Impact；The force cell 14 is fixed on horizontal base plate 13, and the horizontal base plate 13 is fixed on blanking box 4 by angle steel 12
Outer wall, horizontal base plate 13 are provided with outer housing 16, make force cell 14, joint 15, horizontal 17 outer end of power transmission push rod be placed in outer housing
In 16；2 plate face of momentum plate is set to the shiny surface with corrosion resistant plate, is bonded at under moist operating mode, reducing material as far as possible
Tare weight is affected in 2 plate face of momentum plate；The central axis position of the pan feeding guiding gutter 1, momentum plate 2 and its parallel hinges mechanism 3
In material setting point center, to obtain maximally effective mechanical balance；Two outlets 8 of 4 discharging opening 5 of the blanking box and band and
9 switching pipe 6 is connected, and is hinged with turnover panel 7, is selected with adjusting the pendulum angle of turnover panel 7 as needed between two outlets 8 and 9
Select wherein one outlet discharge.
During work, by the horizontal component in dynamic impulse force of the parallel hinges mechanism 3 by material impact on momentum plate 2 with
Eccentric impact torsion and vertical stress component are separated, then pass to the horizontal component that separates by horizontal power transmission push rod 17
Force cell 14, makes force cell 14 only obtain the horizontal component signal being directly proportional to flow, it is to avoid because receiving vertical stress component
Affect with perturbed forces such as eccentric impact torsions and produce null offset, distortion, and then solve the problems, such as flow misalignment.
Claims (7)
1. a kind of high accuracy impact flow meter, including setting pan feeding guiding gutter thereon, which divides into discharging opening, sets inclination momentum plate in which
Blanking box, also include force cell, it is characterised in that incline momentum plate and exist by the parallel hinges mechanism supports of its underpart
In blanking box, while matched with the force cell outside blanking box by the horizontal power transmission push rod of its sidepiece；The parallel hinge
Chain mechanism includes that vertical part, the upper end of the vertical part are fixed with hinge, and the two ends of upper hinge are fixed on by upper bearing (metal) and bearing block
On the fixture of momentum plate, the lower end of vertical part is fixed with down hinge, and the two ends of down hinge are fixed on by lower bearing and bearing block
On blanking box base plate；The vertical part is vertical rod or riser, and which constitutes 87-88 angles with horizontal plane；The fixture includes being fixed on
The riser of momentum back, and be fixed on riser bottom and constitute 45 jiaos of horizontal plate with momentum plate, horizontal plate is inner fixed
In momentum back, rod set on the outside of horizontal plate, is fixed with；Bar on the outside of described horizontal power transmission push rod the inner and fixture horizontal plate
Set is connected, and horizontal power transmission push rod outer end is connected with force cell by joint.
2. high accuracy impact flow meter according to claim 1, it is characterised in that the upper bearing (metal) and bearing block are fixed on
On the downside of the horizontal plate of fixture.
3. high accuracy impact flow meter according to claim 1, it is characterised in that the horizontal power transmission push rod inner with solid
The connection for determining the rod set on the outside of part horizontal plate is to be spirally connected or grafting.
4. high accuracy impact flow meter according to claim 1, it is characterised in that the force cell is fixed on level
On substrate, the horizontal base plate is fixed on blanking box outer wall by angle steel.
5. high accuracy impact flow meter according to claim 1, it is characterised in that the momentum plate plate face is set to shiny surface,
Corrosion resistant plate or electric bakelite plate are set specifically in momentum plate plate face.
6. high accuracy impact flow meter according to claim 1, it is characterised in that the pan feeding guiding gutter, momentum plate and its
The central axis of parallel hinges mechanism is located at material setting point center.
7. high accuracy impact flow meter according to claim 1, it is characterised in that two, the blanking box discharging opening and band
The switching pipe of outlet is connected, and is hinged with turnover panel between two outlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200021.8A CN103954323B (en) | 2014-05-13 | 2014-05-13 | High accuracy impact flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410200021.8A CN103954323B (en) | 2014-05-13 | 2014-05-13 | High accuracy impact flow meter |
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| Publication Number | Publication Date |
|---|---|
| CN103954323A CN103954323A (en) | 2014-07-30 |
| CN103954323B true CN103954323B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410200021.8A Active CN103954323B (en) | 2014-05-13 | 2014-05-13 | High accuracy impact flow meter |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104620998A (en) * | 2015-03-07 | 2015-05-20 | 西北农林科技大学 | Discharging plate of feeder |
| CN106093460B (en) * | 2016-08-11 | 2022-04-26 | 珠海格力电器股份有限公司 | Flow velocity measuring device |
| CN106840280A (en) * | 2017-03-17 | 2017-06-13 | 合肥固泰自动化有限公司 | A kind of suspension type impact flow meter |
| CN106918371B (en) * | 2017-03-17 | 2019-02-26 | 合肥固泰自动化有限公司 | A kind of force transmission mechanism of flowmeter |
| CN111060165B (en) * | 2019-12-23 | 2021-06-29 | 合肥固泰自动化有限公司 | High-precision punching plate flowmeter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189738Y (en) * | 1993-11-27 | 1995-02-15 | 中国矿业大学 | Impact-plate metering balance |
| CN1196477A (en) * | 1997-04-15 | 1998-10-21 | 黄敏成 | Method and device for measuring flow of solid material |
| CN2420619Y (en) * | 2000-03-24 | 2001-02-21 | 黄敏成 | Impact gravity flow meter |
| CN2447735Y (en) * | 2000-09-01 | 2001-09-12 | 方明 | Bearing balancing electronic bulk flowmeter |
| CN200982873Y (en) * | 2006-11-16 | 2007-11-28 | 陈立明 | Novel impingement plate flow meter |
| CN101266160A (en) * | 2008-05-01 | 2008-09-17 | 太原理工大学 | Continuous dynamic intelligent metering mechanism |
| CN203893892U (en) * | 2014-05-13 | 2014-10-22 | 陈立明 | High-precision impact flowmeter |
-
2014
- 2014-05-13 CN CN201410200021.8A patent/CN103954323B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189738Y (en) * | 1993-11-27 | 1995-02-15 | 中国矿业大学 | Impact-plate metering balance |
| CN1196477A (en) * | 1997-04-15 | 1998-10-21 | 黄敏成 | Method and device for measuring flow of solid material |
| CN2420619Y (en) * | 2000-03-24 | 2001-02-21 | 黄敏成 | Impact gravity flow meter |
| CN2447735Y (en) * | 2000-09-01 | 2001-09-12 | 方明 | Bearing balancing electronic bulk flowmeter |
| CN200982873Y (en) * | 2006-11-16 | 2007-11-28 | 陈立明 | Novel impingement plate flow meter |
| CN101266160A (en) * | 2008-05-01 | 2008-09-17 | 太原理工大学 | Continuous dynamic intelligent metering mechanism |
| CN203893892U (en) * | 2014-05-13 | 2014-10-22 | 陈立明 | High-precision impact flowmeter |
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| CN103954323A (en) | 2014-07-30 |
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Effective date of registration: 20240327 Address after: Room 1203, Building 7, Aoyunfeng, No. 1888 Haiyuan North Road, Kunming High tech Zone, Kunming City, Yunnan Province, 650101 Patentee after: Kunming Yumeng Aike Industrial Automation Co.,Ltd. Country or region after: China Address before: Building 3-3F, No. 8 Mingchun Garden, Century City, Guandu District, Kunming City, Yunnan Province, 650000 Patentee before: Chen Liming Country or region before: China |