CN1224828C - Weighing sensor for electronic balance - Google Patents
Weighing sensor for electronic balance Download PDFInfo
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- CN1224828C CN1224828C CN 03141986 CN03141986A CN1224828C CN 1224828 C CN1224828 C CN 1224828C CN 03141986 CN03141986 CN 03141986 CN 03141986 A CN03141986 A CN 03141986A CN 1224828 C CN1224828 C CN 1224828C
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- guiding mechanism
- base plate
- mounting hole
- support plate
- magnetic support
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Abstract
The present invention relates to a weighing sensor for an electronic balance, which comprises a mechanical structure and an electromagnetic device, wherein the high integration mechanical structure is mainly composed of a guiding mechanism, a bottom plate, a cross beam, a reed, a fixing plate, a lever and a magnetic base plate, the guiding mechanism is in a frame shape, the upper thin edge of the guiding mechanism is provided with an upper guide rod, the lower edge of the guiding mechanism is provided with a lower guide rod, the left thick edge of the guiding mechanism is provided with a force column, the right edge of the guiding mechanism is provided with a supporting column and is connected with a convex beam which extends into the right part of the frame, and the force column approaching point and a supporting column approaching point of the upper guide rod and the lower guide rod are provided with double-face grooves. The shape in the frame is complicated, and an integral block material can be linearly cut and formed on a numerical control machine. The present invention has the advantages of compact structure, convenient assembly, accurate positioning and good mechanical property.
Description
Technical field
The present invention relates to weighing apparatus, particularly a kind of electronic balance weighing sensor.
Background technology
The weighing sensor of electronic balance is to be made according to the electromagnetic force equilibrium principle, its guiding mechanism is under the action of gravity that is claimed thing during measurement, because of distortion produces displacement, displacement is after lever amplifies, the coil that links to each other with lever is moved in static magnetic field, and electrooptical device is measured coil and has been departed from original equilibrium position, gives the certain offset current of coil by the circuit control section, alive coil is subjected to Amp (being electromagnetic force) effect in magnetic field, make lever return to the equilibrium position.Therefore, claim thing corresponding offset current this and quilt, carry out conversion process, can record the quality that is claimed thing by the circuit control section.
The physical construction of existing electronic balance weighing sensor is made up of more than 30 parts, mechanism's complexity, and processing capacity is big, during mounting cost, and the error that assembling and positioning produces is also big, has influenced the raising of measuring accuracy.As shown in Figure 1, only power post 01 just has several parts to be assembled, and other structures repeat no more.
At present, adopt advanced modular construction in the world, all parts that are about to guiding mechanism are shaped in the enterprising line cutting of numerically-controlled machine time processing with whole block material, because the stressing conditions difference of various parts, so cutting profile is needed accurate calculating, accurately processing, and development and the input of producing are bigger.Domesticly also begin to adopt improved modular construction, the basic parts that are about to guiding mechanism carry out the line cutting processing by numerically-controlled machine and are shaped, key components and parts is carried out assembling and setting, to reach the technical indicator of designing requirement, is that this improvement need be constantly perfect.
Summary of the invention
Existing weighing sensor parts are many in order to solve in the present invention, existing technical matters during assembly fee, and provide a kind of structure height integrated electronic balance weighing sensor.
According to above-mentioned purpose, the invention provides a kind of electronic balance weighing sensor, comprise physical construction, calutron, its highly integrated physical construction mainly contains guiding mechanism, base plate, crossbeam, reed, fixed head, lever, also has the magnetic support plate to constitute;
The thin top of guiding mechanism that wherein is shaped as frame is that top guide bar, bottom are lower guide rod, and its thicker left side is that power post, the right are pillar and are connected with the protruding beam that stretches into the frame right part, near power post, pillar place two-sided groove is arranged at top guide bar, lower guide rod;
Wherein the two bottom sides of the base plate of fork-shaped has higher flange, and lower boss is arranged between the flange, near boss the fixed supported slab vertical with base plate is arranged, and there is the fork-shaped platform in the fixed supported slab outside;
Wherein the magnetic support plate is connected with the fork-shaped platform of base plate, and calutron is installed on the magnetic support plate;
Guiding mechanism is perpendicular to base plate, and its pillar is close to fixed supported slab and is placed on the boss, by screw pillar and fixed supported slab is fastenedly connected; Crossbeam is positioned at guiding mechanism frame left part, is connected with power post, fixed head by reed, and fixed head is connected with flange; Lever is positioned at the guiding mechanism frame outside, and the one end is connected with crossbeam, and the other end is connected with the coil of calutron on being installed in the magnetic support plate.
The mounting hole of the crossbeam that the sensor, its part omitted are inverted T-shape by nose on it hangs spring by first and is connected with the power post, and by its down the mounting hole at two ends hang spring by second and third root and be connected with fixed head.
The sensor, there is oval mounting hole at the underbeam two ends that wherein are I-shaped fixed head, are connected by screw on the flange of base plate, and its two noses of putting the beams in place have mounting hole to hang spring with second and third root to be connected.
The sensor, wherein the reed of parelinvar comprises that three are hung spring.
The sensor, wherein magnetic support plate intermediate projections partly has 3 mounting holes, by screw calutron is fixedlyed connected with the magnetic support plate, and there is oval mounting hole on its both sides, are connected with base plate fork-shaped platform by screw.
The present invention becomes one original numerous parts owing to adopted above technical measures, makes the electronic balance weighing sensor have the advantage of compact conformation, easy to assembly, accurate positioning, good mechanical property.
Description of drawings
Fig. 1 is an electronic balance weighing sensor original structure synoptic diagram.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is a base arrangement synoptic diagram of the present invention.
Fig. 4 is a beam structure synoptic diagram of the present invention.
Fig. 5 is a fixed head structural representation of the present invention.
Fig. 6 is a magnetic support plate structure synoptic diagram of the present invention.
Embodiment
The present invention is further elaborated below with reference to accompanying drawing.
As shown in Figure 2, a kind of scales/electronic balance weighing sensor, comprise physical construction, calutron, its highly integrated physical construction mainly is made of guiding mechanism 1, base plate 2, crossbeam 3, reed 4, fixed head 5, lever 6, magnetic support plate 7, adds the scale pan 8, sleeve 9, supporting plate 10 and connects securing member.Wherein guiding mechanism 1 its thin top of rectangle frame is top guide bar 1-1, the following lower guide rod 1-2 of being, its thicker left side is that power post 1-3, the right are pillar 1-4 and are connected with the protruding beam 1-5 that stretches into the frame right part; Protruding beam 1-5 has two functions, the one, increase the rigidity of pillar 1-4, the 2nd, when the stressed overload distortion of guiding mechanism 1 to the limit function of its top guide bar 1-1; Near power post 1-3, pillar 1-4 place two-sided groove 1-6 is arranged at top guide bar 1-1, lower guide rod 1-2, the upper and lower guide rod at groove 1-6 place is thinner, is equivalent to reed, makes elastic bending deflection in the time of can making guiding mechanism 1 stressed.Though shape more complicated in the frame if use whole block material in the enterprising line cutting processing of numerically-controlled machine, is not difficult to make.
In conjunction with shown in Figure 3, wherein there is higher flange 2-2 in the bottom 2-1 of the base plate 2 of the fork-shaped outside, and the low boss 2-3 of magnetic between the flange 2-2 has the fixed supported slab 2-4 vertical with base plate 2 near boss 2-3, and there is fork-shaped platform 2-5 in the fixed supported slab 2-4 outside.Mounting hole 2-6 is arranged on fixed supported slab 2-4, be used to install guiding mechanism 1; Threaded hole 2-7 is arranged on flange 2-2, be used for mounting plate 5; Mounting hole 2-8 is arranged on platform 2-5, be used to install magnetic support plate 7.By three mounting hole 2-9 on the base plate 2 bottom 2-1, whole physical construction is fixedly mounted on the casing of electronic balance in addition.
In conjunction with shown in Figure 4, slightly be the crossbeam 3 of inverted T-shape, its epirelief end side surface has mounting hole 3-1, and by being connected with power post 1-3 than the long spring 4-1 that hangs, it has mounting hole 3-2 in side, two ends down, is connected with fixed head 5 upper beams by the two short spring 4-2 that hang.
In conjunction with shown in Figure 5, there is oval mounting hole 5-1 at the underbeam two ends of I-shaped fixed head 5, be used for fixed head 5 is installed in the flange 2-2 of base plate 2, regulate the position of mounting hole 5-1, can reach and hang spring 4-2 with two and be in conplane purpose, there is mounting hole 5-2 its side, upper beam two ends, is used for installing hanging spring 4-2.
In conjunction with shown in Figure 6, magnetic support plate 7 intermediate projections partly have three mounting hole 7-1, be used for fixing and connect the calutron that comprises coil 11, magnet steel 12, magnetic pole 13, there is oval mounting hole 7-2 on its both sides, be used for magnetic support plate 7 is embedded between the fork-shaped platform 2-5 of base plate 2 from the bottom up, the position of regulating mounting hole 7-2 can reach the purpose of the relative position of adjustment (adjusting) lever 6 and magnet steel 12.
Refer again to Fig. 2, the bottom 2-1 of the vertical and base plate 2 of guiding mechanism 1, its pillar 1-4 is close to fixed supported slab 2-4 and places on the boss 2-3, is fastenedly connected by mounting hole 2-6 on the fixed supported slab 2-4 and the threaded hole on the pillar 1-4 by screw; Crossbeam 3 is positioned at guiding mechanism 1 frame left part, is connected with power post 1-3 by hanging spring 4-1 by last nose mounting hole 3-1, and is connected with fixed head 5 upper beam two ends by hanging spring 4-2 by two ends mounting hole 3-2 under it.During assembling, fixed head 5 moves as horizontal direction the relative position of base plate 2 by the oval mounting hole 5-1 in its underbeam two ends, hangs spring 4-2 in a plane to guarantee two, also can regulate the crossbeam 3 and the relative position of guiding mechanism 1 simultaneously.Lever 6 is positioned at the guiding mechanism 1 frame outside, and the one end at right angles is connected with crossbeam 3, and its other end is connected with the coil 11 of calutron.Calutron also comprises magnet steel 12, the magnetic pole 13 in the formation magnetic field that is installed on the magnetic support plate 7.The center of circular pan of a steelyard 8 is installed in by axle sleeve 9 on the end of scale pan supporting plate 10, and the other end of supporting plate 10 is fixed on the power post 1-3 of guiding mechanism 1 by screw.Whole load cell structure is very compact, assembles very convenient.
When being claimed that thing places pan of a steelyard 8, its gravity passes to power post 1-3 by supporting plate 10, guiding mechanism 1 is fulcrum generation plain bending distortion with pillar 1-4 under action of gravity, distortion is by hanging spring 4-1, hanging spring 4-2 makes crossbeam 3 produce displacement, displacement is through lever 6 amplifications and continuous coil 11 is moved in magnetic field, electrooptical device is measured coil 11 and has been departed from original equilibrium position, by the electric current in the circuit control section increase coil 11, this current increment is called offset current, offset current has increased the suffered electromagnetic force of coil, coil is moved down, so that lever 6 returns to the equilibrium position.So, with this with claimed thing corresponding offset current, by the circuit part of electronic balance change, data processing, can obtain to be claimed the weight of thing.If claimed thing to surpass the measurement range of electronic balance, the distortion of guiding mechanism 1 stops because of protruding beam 1-5, can protect sensor not to be damaged.
Claims (5)
1, a kind of electronic balance weighing sensor comprises physical construction, calutron, and physical construction has guiding mechanism (1), base plate (2), crossbeam (3), reed (4), fixed head (5), lever (6), it is characterized in that: also have magnetic support plate (7) to constitute;
The thin top of guiding mechanism (1) that wherein is shaped as frame is that top guide bar (1-1), bottom are lower guide rod (1-2), its thicker left side is that power post (1-3), the right are pillar (1-4) and are connected with the protruding beam (1-5) that stretches into the frame right part, has located two-sided groove (1-6) at top guide bar (1-1), lower guide rod (1-2) near power post (1-3), pillar (1-4);
Wherein there is higher flange (2-2) both sides, bottom (2-1) of the base plate of fork-shaped (2), lower boss (2-3) is arranged between the flange (2-2), near boss (2-3) fixed supported slab (2-4) vertical with base plate (2) arranged, there is fork-shaped platform (2-5) in fixed supported slab (2-4) outside;
Wherein magnetic support plate (7) is connected with the fork-shaped platform (2-5) of base plate (2), and calutron is installed on the magnetic support plate (7);
Guiding mechanism (1) is perpendicular to base plate (2), and its pillar (1-4) is close to fixed supported slab (2-4) and is placed on the boss (2-3), by screw pillar (1-4) and fixed supported slab (2-4) is fastenedly connected; Crossbeam (3) is positioned at guiding mechanism (1) frame left part, is connected with power post (1-3), fixed head (5) by reed (4), and fixed head (5) is connected with flange (2-2); Lever (6) is positioned at guiding mechanism (1) the frame outside, and the one end is connected with crossbeam (3), and the other end is connected with the coil (11) of calutron on being installed in magnetic support plate (7).
2, sensor according to claim 1, it is characterized in that: the mounting hole (3-1) of the crossbeam (3) that wherein is inverted T-shape by nose on it hangs spring (4-1) by first and is connected with power post (1-3), and by its down the mounting hole (3-2) at two ends hang spring (4-2) by second and third root and be connected with fixed head (5).
3, sensor according to claim 1, it is characterized in that: there is oval mounting hole (5-2) at the underbeam two ends that wherein are I-shaped fixed head (5), be connected by screw on the flange (2-2) of base plate (2), its two noses of putting the beams in place have mounting hole (5-1) and second and third root to hang spring (4-2) to be connected.
4, sensor according to claim 1 is characterized in that: wherein the reed of parelinvar (4) comprises that three are hung spring (4-1), (4-2).
5, sensor according to claim 1, it is characterized in that: wherein magnetic support plate (7) intermediate projections partly has 3 mounting holes (7-1), by screw calutron is fixedlyed connected with magnetic support plate (7), there is oval mounting hole (7-2) on its both sides, are connected with base plate (2) fork-shaped platform (2-5) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03141986 CN1224828C (en) | 2003-07-31 | 2003-07-31 | Weighing sensor for electronic balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03141986 CN1224828C (en) | 2003-07-31 | 2003-07-31 | Weighing sensor for electronic balance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1487270A CN1487270A (en) | 2004-04-07 |
| CN1224828C true CN1224828C (en) | 2005-10-26 |
Family
ID=34155568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03141986 Expired - Fee Related CN1224828C (en) | 2003-07-31 | 2003-07-31 | Weighing sensor for electronic balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1224828C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004020145B3 (en) * | 2004-04-24 | 2005-12-01 | Sartorius Ag | Narrow weighing system, which can be lined up side by side |
| JP4942390B2 (en) * | 2006-05-02 | 2012-05-30 | 株式会社エー・アンド・デイ | Electronic balance load measurement mechanism |
| FR2904110B1 (en) * | 2006-07-18 | 2008-09-05 | Seb Sa | ELECTRONIC WEIGHING APPARATUS |
| WO2008026378A1 (en) * | 2006-08-29 | 2008-03-06 | Shimadzu Corporation | Electronic balance |
| CN101506631B (en) * | 2006-09-27 | 2012-06-20 | 株式会社岛津制作所 | Electronic balance |
| JP6551543B2 (en) * | 2015-12-22 | 2019-07-31 | 株式会社島津製作所 | electronic balance |
| CN109870218A (en) * | 2017-12-04 | 2019-06-11 | 梅特勒-托利多仪器（上海）有限公司 | Weighing and sensing device assembly and electronic balance including it |
-
2003
- 2003-07-31 CN CN 03141986 patent/CN1224828C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1487270A (en) | 2004-04-07 |
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Granted publication date: 20051026 |