CN201488787U - Force-measuring weighing sensor - Google Patents
Force-measuring weighing sensor Download PDFInfo
- Publication number
- CN201488787U CN201488787U CN2009201903310U CN200920190331U CN201488787U CN 201488787 U CN201488787 U CN 201488787U CN 2009201903310 U CN2009201903310 U CN 2009201903310U CN 200920190331 U CN200920190331 U CN 200920190331U CN 201488787 U CN201488787 U CN 201488787U
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- resistance
- weighing
- elastic body
- load
- sensitive grid
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Abstract
The utility model relates to a force-measuring weighing sensor, which is mainly used for weighing a weight bridge and accurately sensing load data during force measuring and weighing processes and belongs to an electromechanical control device. The force-measuring weighing sensor comprises a housing and a base, and is characterized in that a weighing device and a compression elastomer are also included, and the weighing device is connected with the compression elastomer; a resistance strainer is fixed on the compression elastomer and includes a sensitive grid, and the sensitive grid takes a shape of a railing. The force-measuring weighing sensor has the advantages of reasonable structural design, low cost, complete function and accurate sensing.
Description
Technical field
The utility model relates to a kind of load and weighing cell, is mainly used in the weighbridge of weighing, and is used in the weighing and force measurement process the accurate sensing of load-carrying data is belonged to a kind of electromechanical controlling device.
Background technology
That the sensor that is used for weighing and force measurement of prior art has usually is shearing, radial, parallel beam type, its defective be annex many, install complicated, cost is high relatively, does not satisfy desirable weighing and force measurement effect.
The utility model content
Technical problem to be solved in the utility model is to overcome existing above-mentioned shortcoming in the prior art, and a kind of reasonable in design, long service life are provided, measure load and weighing cell accurately.
The technical scheme in the invention for solving the above technical problem is: a kind of load and weighing cell, comprise shell and base, and it is characterized in that: also comprise weighing device and pressurized elastic body, described weighing device is connected with the pressurized elastic body; On described pressurized elastic body, be fixed with electricresistancestraingauge; Described electricresistancestraingauge comprises sensitive grid, and described sensitive grid is the barrier shape.
Electricresistancestraingauge described in the utility model also comprises substrate, and described substrate wraps sensitive grid.
Weighing device described in the utility model comprises pressure containing part, movable steel ball and the part of weighing, and described movable steel ball is installed in pressure containing part and weighs between the part; Be fixed with Connection Block on the described base; Described pressurized elastic body is fixed on weighs between part and the Connection Block.
Pressurized elastic body described in the utility model is four, evenly is fixed on and weighs between part and the Connection Block.
The utility model has a circle elastic body groove on described pressurized elastic body; Described electricresistancestraingauge is fixed in the described elastic body groove.
The utility model is provided with metering circuit, and four electricresistancestraingauges on described four pressurized elastic bodys are formed bridge circuit and are connected on the metering circuit.
Metering circuit described in the utility model comprises a resistance, No. two resistance, No. three resistance, No. four resistance, an adjustable resistance, No. two adjustable resistances and No. three adjustable resistances; Be connected with bridge circuit after resistance and the adjustable resistance parallel connection, be connected with bridge circuit after No. two resistance and No. two adjustable resistance parallel connections, No. three resistance is connected with bridge circuit respectively with No. three adjustable resistances.
Sensitive grid described in the utility model is made with the constantan paper tinsel, and described substrate is made with epoxy phenolics.
The utility model compared with prior art has the following advantages and effect: 1, reasonable in design; 2, simple in structure, cost is low, complete function; 3, sensing is accurate.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the partial sectional view of the utility model embodiment.
Fig. 3 is the G portion cut-open view of Fig. 2.
Fig. 4 is the elastomeric partial structurtes synoptic diagram of the utility model embodiment pressurized.
Fig. 5 is the structural representation of the utility model embodiment sensitive grid.
Fig. 6 is the circuit theory diagrams of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Embodiment:
Referring to Fig. 1～Fig. 5, the utility model comprises pressure containing part 1, movable steel ball 2, the part 3 of weighing, pressurized elastic body 4, base 11, Connection Block 12 and shell 13.
One end of pressurized elastic body 4 is weldingly fixed on the part 3 of weighing, and the other end is fixed on the Connection Block 12 with fixed screw 8, and Connection Block 12 is welded on again on the base 11.Pressurized elastic body 4 is four, is evenly distributed on to weigh between part 3 and the Connection Block 12, and the center line of four pressurized elastic bodys 4 surrounds a rectangular parallelepiped.Pressurized elastic body 4 selected materials can be one or more in 42CrMo, 40CrNiMoA, the 40Cr alloy steel.In manufacture process, pressurized elastic body 4 finishing after bakingout process strengthens its pliability and powerful elastic force retractility, makes it reach expansion behind pressurized, it is resetted, and can accurately expand according to the pressurized Weight control, reach the repetition good springiness, linear accurately accurate, long service life, simultaneously can arbitrary deformation, can oxidation yet, guarantee the accuracy that expansion coefficient transmits.
On each pressurized elastic body 4, all have a circle elastic body groove 14, on elastic body groove 14, be fixed with electricresistancestraingauge 7.Electricresistancestraingauge 7 comprises sensitive grid made from the constantan paper tinsel 15 and the substrate made from epoxy phenolics, and substrate is fixed on the elastic body groove 14 after sensitive grid 15 is wrapped.Sensitive grid 15 is the barrier shape, in manufacture process, makes sensitive grid 15 after a constantan paper tinsel is carved into the barrier shape with photoetching.The THICKNESS CONTROL of electricresistancestraingauge 7 is at about 65 μ m, its stable performance, and pliability is good, but temperature self-compensation.
Four electricresistancestraingauges 7 on four pressurized elastic bodys 4 are formed bridge circuit A and are connected with metering circuit.Metering circuit includes resistance R 1, No. two resistance R 2, No. three resistance R 3, No. four resistance R 4, adjustable resistance T1, No. two adjustable resistance T2 and No. three adjustable resistance T3.Be connected with bridge circuit A after resistance R 1 and the adjustable resistance T1 parallel connection, be connected with bridge circuit A after No. two resistance R 2 and No. two adjustable resistance T2 parallel connection, No. three resistance R 3 is connected with bridge circuit A respectively with No. three adjustable resistance T3.No. four resistance R 4 are connected between the tie point of the tie point of a resistance R 1 and an adjustable resistance T1 and No. two adjustable resistance T2 and No. three adjustable resistance T3.The circuit of present embodiment is B point ground connection, and C point and D point connect the 10V direct supply, and E point and F point connect digital control systems such as instrument.No. three resistance R 3 and No. three adjustable resistance T3 can adjust resistance according to the process condition of parts such as sensitive grid 15, pressurized elastic body 4, and scope can be transferred to 0 ohm.
During use, the object of will weighing is placed on the pressure containing part 1, pressurized elastic body 4 is subjected to heavy back elastic deformation, electricresistancestraingauge 7 reaches deform in same pace, sensitive grid 15 distortion backs change resistance value, under the effect of 10V direct supply, and the change of resistance value, the signal that makes weighing and force measurement sensing is accurately given digital control system, realizes the calculating of weighing and force measurement.
In addition, need to prove, the specific embodiment described in this instructions, its zero, the shape of parts, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done, be included in the protection domain of the utility model patent according to the utility model patent.
Claims (8)
1. a load and weighing cell comprises shell and base, it is characterized in that: also comprise weighing device and pressurized elastic body, described weighing device is connected with the pressurized elastic body; On described pressurized elastic body, be fixed with electricresistancestraingauge; Described electricresistancestraingauge comprises sensitive grid, and described sensitive grid is the barrier shape.
2. load and weighing cell according to claim 1 is characterized in that: described electricresistancestraingauge also comprises substrate, and described substrate wraps sensitive grid.
3. load and weighing cell according to claim 1 is characterized in that: described weighing device comprises pressure containing part, movable steel ball and the part of weighing, and described movable steel ball is installed in pressure containing part and weighs between the part; Be fixed with Connection Block on the described base; Described pressurized elastic body is fixed on weighs between part and the Connection Block.
4. load and weighing cell according to claim 3 is characterized in that: described pressurized elastic body is four, evenly is fixed on and weighs between part and the Connection Block.
5. according to claim 2 or 3 described load and weighing cells, it is characterized in that: on described pressurized elastic body, have a circle elastic body groove; Described electricresistancestraingauge is fixed in the described elastic body groove.
6. load and weighing cell according to claim 5 is characterized in that: be provided with metering circuit, four electricresistancestraingauges on described four pressurized elastic bodys are formed bridge circuit and are connected on the metering circuit.
7. load and weighing cell according to claim 6 is characterized in that: described metering circuit comprises a resistance, No. two resistance, No. three resistance, No. four resistance, an adjustable resistance, No. two adjustable resistances and No. three adjustable resistances; Be connected with bridge circuit after resistance and the adjustable resistance parallel connection, be connected with bridge circuit after No. two resistance and No. two adjustable resistance parallel connections, No. three resistance is connected with bridge circuit respectively with No. three adjustable resistances.
8. load and weighing cell according to claim 2 is characterized in that: described sensitive grid is made with the constantan paper tinsel, and described substrate is made with epoxy phenolics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201903310U CN201488787U (en) | 2009-07-30 | 2009-07-30 | Force-measuring weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201903310U CN201488787U (en) | 2009-07-30 | 2009-07-30 | Force-measuring weighing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488787U true CN201488787U (en) | 2010-05-26 |
Family
ID=42427661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201903310U Expired - Fee Related CN201488787U (en) | 2009-07-30 | 2009-07-30 | Force-measuring weighing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201488787U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890725A (en) * | 2014-11-26 | 2016-08-24 | 浙江财经大学 | Dynamic weighing device and method for rotary product |
| CN112595394A (en) * | 2020-12-07 | 2021-04-02 | 锐马（福建）电气制造有限公司 | Tangential arc strain gauge, radial strain gauge and supporting leg weighing sensor |
| CN117283250A (en) * | 2023-11-24 | 2023-12-26 | 中裕铁信交通科技股份有限公司 | Bridge cable sensor processing method |
-
2009
- 2009-07-30 CN CN2009201903310U patent/CN201488787U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890725A (en) * | 2014-11-26 | 2016-08-24 | 浙江财经大学 | Dynamic weighing device and method for rotary product |
| CN105890725B (en) * | 2014-11-26 | 2019-02-12 | 浙江财经大学 | A kind of dynamic weigher and method of Rotating article |
| CN112595394A (en) * | 2020-12-07 | 2021-04-02 | 锐马（福建）电气制造有限公司 | Tangential arc strain gauge, radial strain gauge and supporting leg weighing sensor |
| CN117283250A (en) * | 2023-11-24 | 2023-12-26 | 中裕铁信交通科技股份有限公司 | Bridge cable sensor processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20130730 |