CN213148019U - Integrated weighing sensor and electronic balance - Google Patents
Integrated weighing sensor and electronic balance Download PDFInfo
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- CN213148019U CN213148019U CN202022126295.0U CN202022126295U CN213148019U CN 213148019 U CN213148019 U CN 213148019U CN 202022126295 U CN202022126295 U CN 202022126295U CN 213148019 U CN213148019 U CN 213148019U
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Abstract
The utility model discloses an integrated weighing sensor, which comprises an elastomer, a scale pan-scale core component, a lever, a magnetic cylinder-coil component, a lever bracket and a hanging strip; the elastic body comprises a base, an upper parallel frame, a lower parallel frame, a bearing force measuring unit and a lever supporting seat, wherein the base, the upper parallel frame, the lower parallel frame, the bearing force measuring unit and the lever supporting seat are of an integrated structure; the scale pan-scale core assembly is fixed above the bearing force measuring unit; the lever bracket is fixed on the lever supporting seat; the left end of the lever is supported on the lever bracket, a hanging strip is connected above the left end of the lever, and the hanging strip is connected with the bottom of the bearing force measuring unit; the right end of the lever penetrates through the magnetic cylinder-coil assembly which is fixed on the elastic body. The utility model discloses an integral type weighing sensor and electronic balance simple structure, low in manufacturing cost, the precision of weighing is high, response speed is fast.
Description
Technical Field
The utility model relates to the field of machine-building, in particular to integral type weighing sensor and electronic balance.
Background
For electronic balances and moisture meters in laboratories and industrial environments with high-precision weighing, the electronic balances and moisture meters are divided into traditional electromagnetic force balance sensors and electronic balances, strain type weighing sensors, electronic balances and the like according to different weighing sensor structures; the traditional electromagnetic force balance sensor is complex in structure and mainly comprises a base, a splayed frame-spring assembly (upper), a lifting lug-lever-scale assembly, a splayed frame-spring assembly (lower) and the like, wherein the lifting lug-lever-scale assembly and the splayed frame-spring assembly (lower) form a parallelogram structure together, and the lifting lug-lever-scale assembly realizes force transmission and balance of a lever through a fulcrum spring, a sling spring, a magnetic steel-coil assembly and the like. The traditional electromagnetic force balance sensor has more parts, complex structure and slow response speed, and cannot meet the precision weighing requirement in an industrial environment; the strain type weighing sensor is a relatively independent force measuring unit, the weighing principle is that the deformation of an elastic body is caused by the weight of an object to be measured, and the deformation is converted into the change output of voltage through the Wheatstone bridge principle to realize force measurement. The electronic balance composed of the strain type weighing sensors is simple in structure, low in manufacturing cost, high in response speed, low in weighing precision and incapable of being applied to an analytical balance.
Although the load receiving portion, the parallel guide portion, and the fixing portion of the load cell and the electronic balance disclosed in application No. 201510273989.8 are integrated, there are still components such as the connection spring and the fulcrum spring, and the structure is still complicated, which affects the reliability of the electronic balance.
An integrated weighing sensor and an electronic balance with simple structure, low manufacturing cost, high weighing precision and fast response speed are needed to solve the technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an integral type weighing sensor and electronic balance, the utility model discloses an integral type weighing sensor and electronic balance simple structure, low in manufacturing cost, the precision of weighing is high, response speed is fast.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides an integrated weighing sensor, which comprises an elastomer, a scale pan-scale core component, a lever, a magnetic cylinder-coil component, a lever bracket and a hanging strip; the elastic body comprises a base, an upper parallel frame, a lower parallel frame, a bearing force measuring unit and a lever support seat, wherein the base, the upper parallel frame, the lower parallel frame, the bearing force measuring unit and the lever support seat are of an integrated structure, the elastic body is designed into an open cavity and a lacing wire structure in the horizontal direction and the vertical direction, the base is positioned in the right lower area of the elastic body, the bearing force measuring unit is positioned in the left upper area of the elastic body, the bearing force measuring unit is connected with the base through 4 lamellar ties, the upper parallel frame and the lower parallel frame are respectively positioned above and below the elastic body, and the lever support seat is positioned between the upper parallel frame and the lower parallel frame; the scale pan-scale core assembly is fixed above the bearing force measuring unit; the lever bracket is fixed on the lever supporting seat; the left end of the lever is supported on the lever bracket, the upper part of the left end of the lever is connected with the hanging strip, and the hanging strip is connected with the bottom of the bearing force measuring unit; the right end of the lever penetrates through the magnetic cylinder-coil assembly, and the magnetic cylinder-coil assembly is fixed on the elastic body.
In the utility model discloses in, the elastomer is used for installation, support magnetic cylinder-coil pack to the structure through elastomer self plays the guide reed effect.
In the utility model, the scale pan-scale core component is used for placing the object to be weighed;
preferably, the scale pan-scale core assembly is connected with the load-bearing force-measuring unit through a fixing plate and a screw.
In the utility model, the lever is matched with the magnetic cylinder-coil assembly to realize the conversion from the deformation of the bearing force measuring unit to the electromagnetic signal;
preferably, a limiting mechanism is mounted at the top of the right end of the lever.
In the present invention, the cylinder-coil assembly is used for realizing the conversion of electromagnetic signals, and the cylinder-coil assembly is conventional in the field.
In the utility model, the lever bracket is used for supporting the lever;
preferably, the lever bracket is of an embedded double-plate structure, the lever bracket comprises an outer plate and an inner plate, the outer plate and the inner plate are connected through two bilaterally symmetrical ligaments which are machined into sheets, the outer plate is fixed on the lever supporting seat through a screw, the inner plate supports the left end part of the lever, and the outer plate and the inner plate simultaneously play a role of a fulcrum reed.
In the utility model, the sling is connected with the bottom of the bearing force measuring unit to play the role of sling reed;
preferably, the hanging strip is of a dumbbell-shaped plate structure, the upper part and the lower part of the hanging strip are wide, and the middle part of the hanging strip is narrow.
The utility model also provides an electronic balance, electronic balance includes modulus conversion-display screen and foretell integral type weighing sensor, modulus conversion-display screen is fixed in the top of magnetic cylinder-coil assembly, modulus conversion-display screen with magnetic cylinder-coil assembly is linked together.
The utility model discloses in, the analog-to-digital conversion-display screen is used for realizing turning into the digital signal output with the analog quantity signal to show on the display screen.
The utility model discloses an integral type weighing sensor and electronic balance's theory of operation does: when the scale pan-scale core assembly is loaded, the lever loses balance; the magnetic cylinder-coil assembly automatically adjusts current and electromagnetic force to realize rebalancing of the lever, analog quantity signals of the integrated weighing sensor and the electronic balance are converted into digital signals to be output through analog-digital conversion-display screen display, and accurate weighing is realized.
The utility model has the advantages and the beneficial effects that: the utility model discloses an integral type weighing sensor and electronic balance simple structure, low in manufacturing cost, the precision of weighing is high, response speed is fast.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an electronic balance according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an elastic body of the integrated weighing sensor according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a lever bracket of the integrated weighing sensor according to the embodiment of the present invention;
fig. 4 is a schematic structural view of a strap of the integrated weighing sensor according to an embodiment of the present invention.
Description of reference numerals:
1. an elastomer;
2. scale pan-scale core assembly;
3. a lever;
4. a cylinder-coil assembly;
5. a lever bracket;
6. a sling;
7. analog-to-digital conversion-display screen;
11. a base;
12. an upper parallel frame;
13. a lower parallel frame;
14. a load-bearing force-measuring unit;
15. a lever supporting seat;
51. an outer plate;
52. an inner panel.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, 2, 3 and 4, the present embodiment provides an integrated weighing sensor, which includes an elastic body 1, a scale pan-scale core assembly 2, a lever 3, a cylinder-coil assembly 4, a lever bracket 5 and a hanging strip 6; the elastic body 1 comprises a base 11, an upper parallel frame 12, a lower parallel frame 13, a bearing force measuring unit 14 and a lever support seat 15, wherein the base 11, the upper parallel frame 12, the lower parallel frame 13, the bearing force measuring unit 14 and the lever support seat 15 are of an integrated structure, the elastic body 1 is designed into an open cavity and a lacing wire structure in the horizontal direction and the vertical direction, the base 11 is positioned in the lower right area of the elastic body 1, the bearing force measuring unit 14 is positioned in the upper left area of the elastic body 1, the bearing force measuring unit 14 is connected with the base 11 through 4 lamellar ties, the upper parallel frame 12 and the lower parallel frame 13 are respectively positioned above and below the elastic body 1, and the lever support seat 15 is positioned between the upper parallel frame 12 and the lower parallel frame 13; the scale pan-scale core assembly 2 is fixed above the bearing force measuring unit 14; the lever bracket 5 is fixed on the lever supporting seat 15; the left end of the lever 3 is supported on the lever bracket 5, a hanging strip 6 is connected above the left end of the lever 3, and the hanging strip 6 is connected with the bottom of the bearing force measuring unit 14; the right end of the lever 3 penetrates through the cylinder-coil assembly 4, and the cylinder-coil assembly 4 is fixed on the elastic body 1.
In this embodiment, the elastic body 1 is used to mount and support the cylinder-coil assembly 4, and functions as a guide spring by the structure of the elastic body 1 itself.
In this embodiment, the scale pan-scale core assembly 2 is used for placing an object to be weighed; the scale pan-scale core assembly 2 is connected with the load-bearing force-measuring unit 14 through a fixing plate and screws.
In this embodiment, the lever 3 is used to realize conversion from deformation of the load-bearing force-measuring unit 14 to an electromagnetic signal in cooperation with the cylinder-coil assembly 4; and a limiting mechanism is arranged at the top of the right end of the lever 3.
In this embodiment, the cylinder-coil assembly 4 is used to realize the conversion of electromagnetic signals.
In the present embodiment, the lever bracket 5 is used to support the lever 3; the lever bracket 5 is an embedded double-plate structure, the lever bracket 5 comprises an outer plate 51 and an inner plate 52, the outer plate 51 and the inner plate 52 are connected through two bilaterally symmetrical bands which are machined into sheets, the outer plate 51 is fixed on a support seat of the lever 3 through a screw, the inner plate 52 supports the left end part of the lever 3, and the outer plate 51 and the inner plate 52 simultaneously play a role of a fulcrum reed.
In the embodiment, the sling 6 is connected with the bottom of the bearing force measuring unit 14 to play a role of a reed of the sling 6; the hanging strip 6 is in a dumbbell-shaped plate structure, the upper part and the lower part of the hanging strip 6 are wide, and the middle part of the hanging strip 6 is narrow.
The embodiment also provides an electronic balance which comprises an analog-digital conversion-display screen 7 and the integrated weighing sensor, wherein the analog-digital conversion-display screen 7 is fixed above the magnetic cylinder-coil assembly 4, and the analog-digital conversion-display screen 7 is communicated with the magnetic cylinder-coil assembly 4.
In this embodiment, the analog-to-digital conversion-display screen 7 is used for converting the analog quantity signal into a digital signal and outputting the digital signal, and displaying the digital signal on the display screen.
The working principle of the integrated weighing sensor and the electronic balance of the embodiment is as follows: when the scale pan-scale core assembly is loaded, the lever loses balance; the magnetic cylinder-coil assembly automatically adjusts current and electromagnetic force to realize rebalancing of the lever, analog quantity signals of the integrated weighing sensor and the electronic balance are converted into digital signals to be output through analog-digital conversion-display screen display, and accurate weighing is realized.
The integrated weighing sensor and the electronic balance have the advantages of simple structure, low manufacturing cost, high weighing precision and high response speed.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An integrated weighing sensor is characterized by comprising an elastic body, a scale pan-scale core assembly, a lever, a magnetic cylinder-coil assembly, a lever bracket and a hanging strip; the elastic body comprises a base, an upper parallel frame, a lower parallel frame, a bearing force measuring unit and a lever support seat, wherein the base, the upper parallel frame, the lower parallel frame, the bearing force measuring unit and the lever support seat are of an integrated structure, the elastic body is designed into an open cavity and a lacing wire structure in the horizontal direction and the vertical direction, the base is positioned in the right lower area of the elastic body, the bearing force measuring unit is positioned in the left upper area of the elastic body, the bearing force measuring unit is connected with the base through 4 lamellar ties, the upper parallel frame and the lower parallel frame are respectively positioned above and below the elastic body, and the lever support seat is positioned between the upper parallel frame and the lower parallel frame; the scale pan-scale core assembly is fixed above the bearing force measuring unit; the lever bracket is fixed on the lever supporting seat; the left end of the lever is supported on the lever bracket, the upper part of the left end of the lever is connected with the hanging strip, and the hanging strip is connected with the bottom of the bearing force measuring unit; the right end of the lever penetrates through the magnetic cylinder-coil assembly, and the magnetic cylinder-coil assembly is fixed on the elastic body.
2. The integrated load cell of claim 1, wherein said scale pan-core assembly is attached to said load-bearing load cell by a mounting plate and screws.
3. The integrated weighing sensor of claim 1, wherein a limiting mechanism is mounted on the top of the right end of the lever.
4. The integrated weighing sensor of claim 1, wherein the lever bracket is of an embedded double-plate structure, the lever bracket comprises an outer plate and an inner plate, the outer plate and the inner plate are connected through two bilaterally symmetrical ligaments machined into thin plates, the outer plate is fixed on the lever supporting seat through a screw, and the inner plate supports the left end part of the lever.
5. The integrated load cell of claim 1, wherein the strap is a dumbbell-shaped plate structure, the strap being wide at the top and bottom and narrow at the middle.
6. An electronic balance, comprising an analog-to-digital conversion-display screen and the integrated weighing sensor according to any one of claims 1 to 5, wherein the analog-to-digital conversion-display screen is fixed above the cylinder-coil assembly, and the analog-to-digital conversion-display screen is communicated with the cylinder-coil assembly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022126295.0U CN213148019U (en) | 2020-09-24 | 2020-09-24 | Integrated weighing sensor and electronic balance |
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|---|---|---|---|
| CN202022126295.0U CN213148019U (en) | 2020-09-24 | 2020-09-24 | Integrated weighing sensor and electronic balance |
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| CN213148019U true CN213148019U (en) | 2021-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097872A (en) * | 2020-09-24 | 2020-12-18 | 上海天美天平仪器有限公司 | Integrated weighing sensor and electronic balance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097872A (en) * | 2020-09-24 | 2020-12-18 | 上海天美天平仪器有限公司 | Integrated weighing sensor and electronic balance |
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