CN103256971B - Elastic body of weighing sensor - Google Patents
Elastic body of weighing sensor Download PDFInfo
- Publication number
- CN103256971B CN103256971B CN201310211407.4A CN201310211407A CN103256971B CN 103256971 B CN103256971 B CN 103256971B CN 201310211407 A CN201310211407 A CN 201310211407A CN 103256971 B CN103256971 B CN 103256971B
- Authority
- CN
- China
- Prior art keywords
- overload
- notch
- strain
- elastomer
- groove opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Force In General (AREA)
Abstract
The invention relates to an elastic body of a weighing sensor. The elastic body comprises a fixed part and a strain part. The fixed part comprises a printing plate mounting hole formed in the elastic body. The strain part comprises a strain hole formed in the elastic body and a set of strain pieces fixed in the strain hole. A cross-shaped overload beam is arranged in the strain hole. An upper overload gap on an upper groove opening of a vertical beam of the overload beam is used for balancing an output signal during overloading of a first strain piece and a second strain piece on two sides of the upper groove opening. A lower overload gap on a lower groove opening of the vertical beam of the overload beam is used for balancing an output signal during overloading of a third strain piece and a fourth strain piece on two sides of the lower groove opening. The upper overload gap delta 1 of the upper groove opening is identical to the lower overload gap delta 2 of the lower groove opening. A middle groove opening is formed in a horizontal beam of the overload beam. A middle overload gap lambada of the middle groove opening is used for overload protection. The elastic body of the weighing sensor is compact in structure, an overload part is arranged in the elastic body, good side-loading-resistant capacity and good overload protection performance are achieved, controlling and machining are convenient, and service life can be prolonged.
Description
Technical field
The present invention relates to a kind of elastomer of LOAD CELLS, belong to electronic scale technical field.
Background technology
In industrial occasions, along with improving constantly of production efficiency, also more and more higher to the requirement of weighing, traditional static weighing can not adapt to modern industry high speed, requirement efficiently, the high-precision weighing problem in dynamic case in the urgent need to address.Under dynamic case, LOAD CELLS can be subject to the impacts such as more vibration, impact, extruding, torsion.
Along with people are to the concern of food hygiene, also more and more higher to the requirement of Dynamic Weighing Technology.Under dynamic application, require that LOAD CELLS has higher anti-overload ability.Moreover, due to the particularity of food service industry, require that LOAD CELLS is more prone to cleaning, to meet food requirement.Current solution is roughly divided into two kinds, and a kind of is the LOAD CELLS adopting No-mistake Principle protection, and this LOAD CELLS, owing to lacking protection, very easily because overload is damaged in use procedure, just more easily damages under dynamic environment.Another kind has the LOAD CELLS of overload protection function; elastomer is the overcurrent protection structure of external; LOAD CELLS overload protection ability greatly can be improved by overload protecting mechanism; but the overload gap on overload protection is naked being exposed on the external; overload gap can be caused to be blocked by dust; the metering performance of LOAD CELLS can be affected on the one hand, on the other hand also very easily breed bacteria, and have influence on food safety requirements.Moreover, LOAD CELLS is that output weight signal is carried out on the bridge road that four foil gauges by being fixed in its strain bore of elastomer are formed, but four foil gauges when transshipping due to its force-bearing situation cannot be balanced, therefore easily cause the damage of one of them or two foil gauges, reduce the service life of LOAD CELLS.
Summary of the invention
The object of the invention is to provide a kind of compact conformation, overload protection is arranged on elastomer inside, has good anti-side load ability and overload protection performance, is convenient to the elastomer that controlled working also can improve the LOAD CELLS in service life.
The present invention is the technical scheme achieved the above object: a kind of elastomer of LOAD CELLS, comprises standing part and strain part, and described standing part comprises the printed board installing hole be arranged on elastomer, described Response Division is divided and is comprised the strain bore be arranged on elastomer and the one group of foil gauge be fixed in strain bore, it is characterized in that: in described strain bore, be provided with criss-cross overload beam, the upper and lower of the vertical beam of overload beam is respectively equipped with notch and lower notch, output signal when the upper overload gap delta 1 of described upper notch is transshipped for the first foil gauge and the second foil gauge balancing upper notch both sides, the lower overload gap delta 2 of described lower notch is for the output signal of the 3rd foil gauge and the 4th foil gauge that balance lower notch both sides, and the upper overload gap delta 1 of upper notch is identical with the lower overload gap delta 2 of lower notch, the crossbeam of overload beam is provided with median slot, and the middle overload gap lambda of median slot is used for overload protection.
Upper notch on described overload Liangqi vertical beam and lower notch are in-line notch or zigzag notch or V-shaped groove mouth or square waveform notch.
Median slot on described overload Liangqi crossbeam is V-shaped groove mouth or zigzag notch or square waveform notch.
The upper overload gap delta 1 of described overload Liangqi vertical beam and lower overload gap delta 2 are at 0.01 ~ 0.5mm, and the middle overload gap lambda on crossbeam is 0.5 ~ 2.0 times of upper overload gap delta 1.
The both sides up and down that described elastomer is positioned at strain bore are provided with distortion hole.
The present invention is provided with criss-cross overload beam in elastomeric strain bore, due to be overload beam on be provided with overload gap, after strain bore being sealed by seal, overload gap is made to be arranged on elastomeric inside and to be completely sealed, form built-in operator guards, the safeguard protection of weighing dynamically can be realized, be applicable to the rapid weighing metering under dynamic case, overload gap simultaneously on elastomer is sealed in elastomer inside, outside dust cannot enter in elastomer, solve dust accumulation and affect LOAD CELLS and normally use, also be convenient to clean scale body simultaneously, food safety requirements can be met.Criss-cross overload beam is there is in strain bore of the present invention, therefore by be arranged on the overload upper notch on Liangqi vertical beam top and bottom lower notch to balance overload time be positioned at the foil gauge of its both sides, the adaptability to changes of four foil gauges is made to reach close to level, effectively reduce the damage that wherein one or two foil gauge causes because of overload, the present invention is simultaneously by the upper notch on overload beam, lower notch and median slot play overload protective function, LOAD CELLS is made to have superpower overload protection and good anti-side load ability, the service life of LOAD CELLS can be improved, making it have is higher fixed frequency.The present invention carries out overload protection by the overload gap of each notch on overload beam, therefore realizing the design of overload quantity by controlling each slit space, can facilitate the control that LOAD CELLS is processed and transshipped.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail
Fig. 1 is the elastomeric structural representation of LOAD CELLS of the present invention.
Fig. 2 is a kind of structural representation of A-A sectional view of Fig. 1.
Fig. 3 is the another kind of structural representation of A-A sectional view of Fig. 1.
Fig. 4 is another structural representation elastomeric of LOAD CELLS of the present invention.
Wherein: 1-cable connector, 2-standing part, 3-strain part, 4-screwed hole, 5-printed board installing hole, 6-distortion hole, 7-the first foil gauge, 8-upper notch, 9-strain bore, 10-the second foil gauge, 11-the three foil gauge, 12-lower notch, 13-median slot, 14-overload beam, the 15-the four foil gauge.
Detailed description of the invention
See shown in Fig. 1 ~ 4, the elastomer of LOAD CELLS of the present invention, comprise standing part 2 and strain part 3, standing part 2 comprises the printed board installing hole 5 be arranged on elastomer, be provided with printed board in this printed board installing hole 5, printed board is connected with cable connector 1, exports the signal of telecommunication by cable connector 1, standing part 2 also has screwed hole, is fixed on pedestal by elastomer by securing member.The present invention strains one group of foil gauge that part 3 comprises the strain bore 9 on elastomer and is fixed in strain bore 9, one group of foil gauge adopts four foil gauges usually, each foil gauge is positioned at the thin-walled place of strain bore 9, when elastomer is subject to external force and produces distortion, the each foil gauge be fixed on elastomer is also out of shape simultaneously, cause the change of foil gauge resistance, by circuit, weight signal is transformed into the corresponding signal of telecommunication and exports.The outside that the present invention strains part 3 is also provided with screwed hole 4, is fixed on elastomer by securing member by bearing part, is fixed on elastomeric seal and seals printed board installing hole 5 and strain bore 9, by printed board and foil gauge positiver sealing.See shown in Fig. 2,3, the both sides up and down that elastomer of the present invention is positioned at strain bore 9 are provided with distortion hole 6, make to form sensitive beam between distortion hole 6 and strain bore 9, and four foil gauges be fixed in strain bore 6 are positioned at sensitive beam place.
See shown in Fig. 2 ~ 4, criss-cross overload beam 14 is provided with in strain bore 9 of the present invention, the upper and lower of the vertical beam of overload beam 14 is respectively equipped with notch 8 and lower notch 12, adaptability to changes when the upper overload gap delta 1 of upper notch 8 is transshipped for the first foil gauge 7 and the second foil gauge 10 balancing upper notch 8 both sides, adaptability to changes when the lower overload gap delta 2 of lower notch 12 is transshipped for the 3rd foil gauge 11 and the 4th foil gauge 15 balancing lower notch 12 both sides, and the upper overload gap delta 1 of upper notch 8 is identical with the lower overload gap delta 2 of lower notch 12, it is in-line notch or zigzag notch or V-shaped groove mouth or square waveform notch that the present invention is transshipped on upper notch 8 on its vertical beam of beam 14 and lower notch 12, elastomer is made to have excellent torsional property, the line of centres of the center line of upper notch 8 and the first foil gauge 7 and the second foil gauge 10 close to or overlap, the line of centres of the center line in same lower notch 12 and the 3rd foil gauge 11 and the 4th foil gauge 15 is close or overlap, so the present invention by upper notch 8 and lower notch 12 when overload, the bearing capacity of four foil gauges can closely be balanced, and reduce the damage of foil gauge.See shown in Fig. 2,3; the present invention is transshipped the crossbeam of beam 14 and is provided with median slot 13; and the middle overload gap lambda of median slot 13 is used for overload protection; as shown in Figure 2; median slot 13 on this crossbeam is V-shaped groove mouth, or median slot 13 is square waveform notch as shown in Figure 3, and median slot 13 of the present invention also can be zigzag notch; the bottom of this V-shaped groove mouth and the central axes of crossbeam, and the center line of the center line crossbeam of the center line of square waveform notch or zigzag notch is close or overlap.
See shown in Fig. 2 ~ 4, the present invention is transshipped the upper overload gap delta 1 of its vertical beam of beam 14 and lower overload gap delta 2 and is controlled at 0.01 ~ 0.5mm, as above overload gap delta 1 and lower overload gap delta 2 are at 0.1 ㎜, 0.25 ㎜ or 0.5, ㎜ etc., and the middle overload gap lambda on crossbeam is 0.5 ~ 2.0 times of upper overload gap delta 1, if centre overload gap lambda is at 0.05 ㎜, 0.125 ㎜ or 0.25 ㎜, 0.5 ㎜ or 1 ㎜ etc., the present invention is by controlling upper overload gap delta 1 and lower overload gap delta 2 and middle overload gap lambda, make three overload gaps play overload protective function simultaneously.
When LOAD CELLS of the present invention uses, when power is passed to strain part 3, because elastomeric distortion also causes each foil gauge also signal of telecommunication of distortion output simultaneously; When the load; upper notch 8 on overload beam 14 and lower notch 12 are out of shape; the output of balance four foil gauges; stress is evenly distributed to keep four foil gauges; with the increase puted forth effort, diminish gradually in the overload gap of upper notch 8 and lower notch 12 or close, in the middle of in the median slot on crossbeam, overload gap also diminishes gradually; when exceeding LOAD CELLS measurement category, the upper notch 8 on elastomer, lower notch 12 and median slot 13 all play overload protective function because of closed.
Claims (5)
1. an elastomer for LOAD CELLS, comprise standing part (2) and strain part (3), described standing part (2) comprises the printed board installing hole (5) be arranged on elastomer, described strain part (3) comprises the strain bore (9) be arranged on elastomer and the one group of foil gauge be fixed in strain bore (9), it is characterized in that: in described strain bore (9), be provided with criss-cross overload beam (14), the vertical beam upper and lower of overload beam (14) is respectively equipped with notch (8) and lower notch (12), adaptability to changes when the upper overload gap delta 1 of described upper notch (8) is transshipped for the first foil gauge (7) and the second foil gauge (10) balancing upper notch (8) both sides, adaptability to changes when the lower overload gap delta 2 of described lower notch (12) is transshipped for the 3rd foil gauge (11) and the 4th foil gauge (15) balancing lower notch (12) both sides, and the upper overload gap delta 1 of upper notch (8) is identical with the lower overload gap delta 2 of lower notch (12), the crossbeam of overload beam (14) is provided with median slot (13), and the middle overload gap lambda of median slot (13) is used for overload protection.
2. the elastomer of LOAD CELLS according to claim 1, is characterized in that: the upper notch (8) on described its vertical beam of overload beam (14) and lower notch (12) are upper is in-line notch or zigzag notch or V-shaped groove mouth or square waveform notch.
3. the elastomer of LOAD CELLS according to claim 1, is characterized in that: the median slot (13) on described its crossbeam of overload beam (14) is V-shaped groove mouth or zigzag notch or square waveform notch.
4. the elastomer of LOAD CELLS according to claim 1, it is characterized in that: the upper overload gap delta 1 of described its vertical beam of overload beam (14) and lower overload gap delta 2 are at 0.01 ~ 0.5mm, and the middle overload gap lambda on crossbeam is 0.5 ~ 2.0 times of upper overload gap delta 1.
5. the elastomer of LOAD CELLS according to claim 1, is characterized in that: the both sides up and down that described elastomer is positioned at strain bore (9) are provided with distortion hole (6).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211407.4A CN103256971B (en) | 2013-05-29 | 2013-05-29 | Elastic body of weighing sensor |
| PCT/CN2014/072356 WO2014146529A1 (en) | 2013-03-18 | 2014-02-21 | Elastic body of weighing sensor |
| EP14770471.2A EP2977731B1 (en) | 2013-03-18 | 2014-02-21 | Elastic body of weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211407.4A CN103256971B (en) | 2013-05-29 | 2013-05-29 | Elastic body of weighing sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103256971A CN103256971A (en) | 2013-08-21 |
| CN103256971B true CN103256971B (en) | 2015-04-29 |
Family
ID=48961031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310211407.4A Active CN103256971B (en) | 2013-03-18 | 2013-05-29 | Elastic body of weighing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103256971B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2977731B1 (en) * | 2013-03-18 | 2023-09-13 | Mettler Toledo (Changzhou) Precision Instrument Ltd. | Elastic body of weighing sensor |
| CN111829618A (en) * | 2019-04-16 | 2020-10-27 | 陈宝明 | Dynamic weighing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338825A (en) * | 1980-10-15 | 1982-07-13 | Eaton Corporation | Strain gage load cell |
| US4361199A (en) * | 1980-07-01 | 1982-11-30 | Gse, Inc. | Overload protection for a weigh scale having a flexure beam |
| US4726435A (en) * | 1985-05-16 | 1988-02-23 | Tokyo Electric Co., Ltd. | Load cell weighing apparatus |
| US5050693A (en) * | 1987-09-30 | 1991-09-24 | Wirth Gallo Messtechnik Ag | Balance and process for calibrating and operating the balance |
| US5604336A (en) * | 1995-03-08 | 1997-02-18 | Weigh-Tronix, Inc. | Load cell with composite end beams having portions with different elastic modulus |
| CN1746635A (en) * | 2005-10-14 | 2006-03-15 | 常熟市百灵天平仪器有限公司 | Resistance strained sensor with protector |
| CN200944058Y (en) * | 2006-06-08 | 2007-09-05 | 霍丁格·包尔文(苏州)电子测量技术有限公司 | Elastomer of weighting sensor |
| CN102519568A (en) * | 2012-01-05 | 2012-06-27 | 郑州恒科实业有限公司 | Array-type weighing rod |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203310490U (en) * | 2013-05-29 | 2013-11-27 | 梅特勒-托利多(常州)精密仪器有限公司 | Elastic body of weighing sensor |
-
2013
- 2013-05-29 CN CN201310211407.4A patent/CN103256971B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361199A (en) * | 1980-07-01 | 1982-11-30 | Gse, Inc. | Overload protection for a weigh scale having a flexure beam |
| US4338825A (en) * | 1980-10-15 | 1982-07-13 | Eaton Corporation | Strain gage load cell |
| US4726435A (en) * | 1985-05-16 | 1988-02-23 | Tokyo Electric Co., Ltd. | Load cell weighing apparatus |
| US5050693A (en) * | 1987-09-30 | 1991-09-24 | Wirth Gallo Messtechnik Ag | Balance and process for calibrating and operating the balance |
| US5604336A (en) * | 1995-03-08 | 1997-02-18 | Weigh-Tronix, Inc. | Load cell with composite end beams having portions with different elastic modulus |
| CN1746635A (en) * | 2005-10-14 | 2006-03-15 | 常熟市百灵天平仪器有限公司 | Resistance strained sensor with protector |
| CN200944058Y (en) * | 2006-06-08 | 2007-09-05 | 霍丁格·包尔文(苏州)电子测量技术有限公司 | Elastomer of weighting sensor |
| CN102519568A (en) * | 2012-01-05 | 2012-06-27 | 郑州恒科实业有限公司 | Array-type weighing rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103256971A (en) | 2013-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103162775B (en) | Cantilever beam type elastomer | |
| KR102147064B1 (en) | New six-dimensional force and torque sensor | |
| CN201210079Y (en) | Weighing sensor having protection function | |
| CN103256971B (en) | Elastic body of weighing sensor | |
| CN100357716C (en) | Resistance strained sensor with protector | |
| CN103335699B (en) | The elastomer structure of multirange LOAD CELLS | |
| CN203310490U (en) | Elastic body of weighing sensor | |
| CN204556063U (en) | Cantilever beam weighting transducer | |
| CN103175598B (en) | Column type elastomer | |
| CN201212834Y (en) | Elastomer for weighing sensor | |
| CN201408067Y (en) | Elastic body of weighing sensor | |
| CN209027644U (en) | Strip foil gauge weighing sensor | |
| CN2205000Y (en) | Weighing sensor with overload protector | |
| CN207798246U (en) | Weighing and sensing device assembly and electronic balance including it | |
| WO2023006053A1 (en) | Integrated high-precision weighing module | |
| CN201277880Y (en) | Elastomer for integrated weighing sensor | |
| CN214471262U (en) | Suspension type cell sap weighing device with deformation amplification function | |
| CN213301541U (en) | Flange type tension sensor with overload protection | |
| EP2977731A1 (en) | Elastic body of weighing sensor | |
| CN204612803U (en) | A kind of protective device of LOAD CELLS | |
| CN208075995U (en) | A kind of plane beam type weighing sensor | |
| CN214621429U (en) | Weighing sensor with accumulation counting function | |
| CN213364014U (en) | Elastic body of electronic balance sensor | |
| CN217276621U (en) | Tension-compression type miniature force transducer | |
| CN221123656U (en) | Overload protection sensor with positioning boss |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |