CN2262238Y - Variable measuring range force measuring sensor - Google Patents
Variable measuring range force measuring sensor Download PDFInfo
- Publication number
- CN2262238Y CN2262238Y CN 96226830 CN96226830U CN2262238Y CN 2262238 Y CN2262238 Y CN 2262238Y CN 96226830 CN96226830 CN 96226830 CN 96226830 U CN96226830 U CN 96226830U CN 2262238 Y CN2262238 Y CN 2262238Y
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- model
- utility
- variable
- measuring range
- ring type
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- Expired - Fee Related
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Abstract
The utility model provides a variable measuring range force measuring sensor. The utility model is mainly characterized in that the variable measuring range force measuring sensor uses a ring type sensing element as a body, the ring type sensing element is connected between an upper and a lower draw rods in series to form a three-section chain type structure, the inner side of the sensing element is stuck with strain foils to form a single bridge or double bridges, and mechanical protective covers are connected by screw threads and are matched with multi-layer soft and hard insulating seal so that the variable measuring range force measuring sensor can stably run with good performance under any severe environment. The utility model has the advantages of small size, light weight, simple structure, variable measuring range, high measuring precision and long service life, the technical performance of the utilility model completely accords with the national standard, and the utility model is an ideal device for detecting, controlling and diagnosing equipment.
Description
The utility model belongs to dynamometry and control pick-up unit, particularly a kind of range changing force cell that detects any load.
In smelter, the pressworking equipment of all organic frames (memorial archway), as rolling mill, water pressure engine, extruder and various forms of pressworking equipment, its dynamometry and control are most adopts direct pressure-bearing type to be worth sensor energetically.This sensor bulk is big, and the cost height is difficult to make and install, and uses also inconvenient.In use, it directly influences the precision and the rigidity of equipment, and is difficult for changing and safeguarding.
In order to overcome the deficiency of prior art, in Germany, the U.S., Britain and China attached type force-measuring sensor based on stand stretch had appearred once in recent years.This sensor is a three stage structure, adopts the strain amplification principle.Its weak point is that owing to adopt vertical bar formula sensitive element, its bending resistance anti-twisting property is relatively poor, and is easily eccentric.
The purpose of this utility model is to provide that a kind of volume is little, in light weight, measuring accuracy is high, the range changing force cell of the employing three-ring type sensitive element of long service life.It is not only online detection of plant equipment and the ideal device of diagnosing permanent dynamometry, and is the pick-up unit of peripheral force parameter during production run is controlled automatically.
Feature of the present utility model is that to adopt amplification coefficient height, bending resistance, ring type sensitive element that anti-twisting property is strong be body, the little ring of its upper and lower fixedly usefulness is connected on formation syllogic chain structure between the upper and lower pull bar with bolt, nut (14), (14 '), keep the centering concentricity with the upper and lower abutment sleeve and the tube that is located by connecting, reach the purpose of seeking the heart automatically with the steel ball hinge.The mechanical protection cover adopts and is threaded.6～16 sheet resistance foil gauges are posted in ring broad in the middle inboard at the three-ring type sensitive element, are unified into behind the electric bridge and output lead joins, and respectively for bridge series connection output or output in parallel, also can one group make to measure another group and make emergency bridge.Device is carried out the multilayer soft and hard seal, matches with mechanical protection cover with thread connection, can guarantee that stablizing high-quality under rugged surroundings arbitrarily moves.
The utility model is through carrying out rating test and the commercial test results on rolling mill shows at MTS testing machine application simulation scaling board, and its technical feature meets national standard fully.Compare with prior art, nearly 2 times of improving of its strain amplification coefficient improve more than 3 times serviceable life.This device can be realized miniaturization, seriation.Have simple in structurely, volume is little, and is in light weight, and sealing firmly is difficult for eccentricly, uses and changes advantages such as convenient.Simultaneously, use this device and need not change part of appliance, do not influence equipment rigidity, the measuring accuracy height, stable and reliable operation is Equipment Inspection control and the ideal device of diagnosing.
Embodiment below in conjunction with in the accompanying drawing is described in detail the utility model.
Fig. 1 is range changing load cell structure figure of the present utility model.
Fig. 2 is a three-ring type sensitive element structure enlarged diagram.
Fig. 3 is the cut-open view of Fig. 2 A-A.
Among the figure (1), (2) be last, lower link, (3) be the mechanical protection cover, (4), (4 ') is last, following abutment sleeve, (5) be the tube that is located by connecting, (6), (6 ') is last, following hold-down support, (7), (7 ') is last, following load screw, (8), (8 ') is last, lower locking nut, (9), (9 ') is hold-down nut up and down, (10), (10 ') is last, following handwheel, (11), (12) be steel ball, (13) be output lead outlet mouth, (14), (14 ') is last, under hang screw rod, (15) are sealing flexible glue pad, (16) be the three-ring type sensitive element, (17) are resistance strain gage.
Assembling mode of the present utility model is: earlier upper and lower abutment sleeve (4), (4 ') are slidingly matched with upper and lower pull bar (1), (2) by the tube (5) that is located by connecting, then the upper and lower fixing of three-ring type sensitive element (16) is serially connected between upper and lower pull bar (1), (2) with screw rod (14), (14 ') with ring, forms the syllogic chain structure.Draw in the maximum that the ring broad in the middle of three-ring type sensitive element is inboard, compressive strain place pastes 6-16 sheet resistance foil gauge (17), is unified into behind the electric bridge and output lead links.Adopt silicon rubber and epoxy resin to carry out the multilayer insulation sealing, with the mechanical protection cover (3) that is threaded.
The utility model is installed with the method for locking, earlier accurately mark neutral surface, line at framework pillar, by sensor base length two hold-down supports (6), (6 ') are welded on the neutral surface, make two steel balls (11), (12) centre distance corresponding with sensor base appearance, the range changing sensor is installed in hold-down support (6), between (6 '), adjusts pretightning force with upper and lower load screw (7), (7 ').Pretightning force generally is controlled at about 80% of full scale output.Mix up the back and pin just adjustable and use then with set nut (8), (8 ').
The utility model can adopt directly, indirectly and simulate three kinds of scaling methods and demarcate.All small-signal and the 0～10V large-signal of exportable 0～10mV under any load through amplifying.Pretension is output as 6～8mV, and full scale is output as 0～10mV.
Claims (3)
1, a kind of range changing force cell comprises upper connecting rod (1), lower link (2), mechanical protection cover (3), upper and lower abutment sleeve (4), (4 '), parts such as tube (5), a steel ball (11), (12) are located by connecting; It is characterized in that adopting three-ring type sensitive element (16), it is fixed little ring up and down be connected between upper and lower pull bar (1), (2) with screw rod (14), (14 '), form the syllogic chain structure, the mechanical protection cover adopts and is threaded.
2, range changing force cell according to claim 1 is characterized in that, posts 6～16 sheet resistance foil gauges (17) in inboard maximum tension and compression strain place of the ring broad in the middle of three-ring type sensitive element (16), is unified into back and output lead and joins.
3, range changing force cell according to claim 1 is characterized in that, sensitive element adopts silicon, rubber and epoxy sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226830 CN2262238Y (en) | 1996-07-11 | 1996-07-11 | Variable measuring range force measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226830 CN2262238Y (en) | 1996-07-11 | 1996-07-11 | Variable measuring range force measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2262238Y true CN2262238Y (en) | 1997-09-10 |
Family
ID=33905094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226830 Expired - Fee Related CN2262238Y (en) | 1996-07-11 | 1996-07-11 | Variable measuring range force measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2262238Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301396C (en) * | 2005-06-10 | 2007-02-21 | 柳贵东 | Strain gage with controllable range mechanically and manufacturing method |
| CN102539026A (en) * | 2012-03-04 | 2012-07-04 | 中航电测仪器股份有限公司 | Large-range columnar pulling-pressing bidirectional force transducer |
| CN103017948A (en) * | 2012-11-28 | 2013-04-03 | 安徽埃克森科技集团有限公司 | Piezoresistive type pressure sensor |
| CN105043601A (en) * | 2015-05-28 | 2015-11-11 | 河海大学常州校区 | Tandem type full-range tension sensing device applicable to large-amplitude variable load |
| CN108225754A (en) * | 2017-12-28 | 2018-06-29 | 贵州高峰石油机械股份有限公司 | A kind of test device for being used to check Petroleum Down-hole Tool tensile compression test frame precision |
| CN110411494A (en) * | 2019-09-03 | 2019-11-05 | 成都西达瑞电子科技有限公司 | A kind of wireless sensor |
-
1996
- 1996-07-11 CN CN 96226830 patent/CN2262238Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301396C (en) * | 2005-06-10 | 2007-02-21 | 柳贵东 | Strain gage with controllable range mechanically and manufacturing method |
| CN102539026A (en) * | 2012-03-04 | 2012-07-04 | 中航电测仪器股份有限公司 | Large-range columnar pulling-pressing bidirectional force transducer |
| CN103017948A (en) * | 2012-11-28 | 2013-04-03 | 安徽埃克森科技集团有限公司 | Piezoresistive type pressure sensor |
| CN105043601A (en) * | 2015-05-28 | 2015-11-11 | 河海大学常州校区 | Tandem type full-range tension sensing device applicable to large-amplitude variable load |
| CN108225754A (en) * | 2017-12-28 | 2018-06-29 | 贵州高峰石油机械股份有限公司 | A kind of test device for being used to check Petroleum Down-hole Tool tensile compression test frame precision |
| CN108225754B (en) * | 2017-12-28 | 2024-04-26 | 贵州高峰石油机械股份有限公司 | Testing device for checking accuracy of pulling and pressing test frame of petroleum downhole tool |
| CN110411494A (en) * | 2019-09-03 | 2019-11-05 | 成都西达瑞电子科技有限公司 | A kind of wireless sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |