CN202599574U - Digital display push-pull force meter - Google Patents
Digital display push-pull force meter Download PDFInfo
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- CN202599574U CN202599574U CN 201220300181 CN201220300181U CN202599574U CN 202599574 U CN202599574 U CN 202599574U CN 201220300181 CN201220300181 CN 201220300181 CN 201220300181 U CN201220300181 U CN 201220300181U CN 202599574 U CN202599574 U CN 202599574U
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Abstract
The utility model provides a digital display push-pull force meter which comprises a mechanical main body and a digital display module. The mechanical main body is provided with a push-pull rod which is pulled or pushed by a to-be-tested article. The digital display module used for displaying a force value when the push-pull rod is pulled or pushed by the to-be-tested article comprises a strain foil type sensor, an analog to digital converter connected with the strain foil type sensor, a central processing unit connected with the analog to digital converter, and a digital display connected with the central processing unit. The strain foil type sensor comprising a fixed part and a deformation part is fixed on the mechanical main body through the fixed part, the deformation part is deformed and outputs an analog voltage signal to the analog to digital converter when the push-pull rod is pulled or pushed by the to-be-tested article, the analog to digital converter amplifies the analog voltage signal, then converts the analog voltage signal into a digital signal, and outputs the digital signal to the central processing unit, the central processing unit converts the digital signal into the force value and outputs the force value to the digital display. The digital display push-pull force meter has high measurement precision.
Description
Technical field
The utility model relates to a kind of numeral and shows pull and push dynamometer, belongs to the mechanical meaurement field.
Background technology
Pull and push dynamometer is a kind of mechanical measuring instrument that is used for thrust and tensile test, mainly is applicable to the push-and-pull Road test in fields such as electronic apparatus, industry light industry textile industry, architectural hardware, fire control equipment and power machine.Traditional pull and push dynamometer is generally pointer pull and push dynamometer; This kind pull and push dynamometer major part is crooked elastic steel sheet or coil spring; When external force makes elastic steel sheet or spring generation deformation; Drive pointer through gear trains such as levers and rotate, pointer is parked in a certain position on the index dial, and the registration of this position is the numerical value of external force.This kind pull and push dynamometer needs human eye on index dial, to carry out reading, and residing position is different, and reading also has very big difference, thereby has influenced the measuring accuracy of traditional pointer pull and push dynamometer.
The utility model content
The technical matters that the utility model will solve is to provide the higher numeral of a kind of measuring accuracy to show pull and push dynamometer.
For this reason, the utility model provides a kind of numeral to show pull and push dynamometer, comprises mechanical body, has pull bar, and said pull bar is by said determinand pulling or promotion; The numeral display module is used for when said pull bar is spurred or promotes by said determinand, showing the power value; Said digital display module comprises strain-gauge transducer, the analog to digital converter that is connected with said strain-gauge transducer, the central processing unit that is connected with said analog to digital converter and the digital indicator that is connected with said central processing unit; Said strain-gauge transducer comprises fixed part and crushed element; And be fixed on the said mechanical body through said fixed part; Said crushed element deforms when said pull bar is spurred or promotes by said determinand and exports an analog voltage signal to said analog to digital converter; Said analog to digital converter changes into digital signal and said digital signal is exported to said central processing unit after said analog voltage signal is amplified, and said central processing unit is converted into the power value with said digital signal and exports to said digital indicator.
Said digital indicator is a LCD.
The said fixed part of said strain-gauge transducer has at least one fixed orifice, and said strain-gauge transducer is fixed on the said mechanical body through said fixed orifice.
Said central processing unit is connected with computing machine.
Said central processing unit is connected with indicating device, and said indicating device is used to indicate said numeral to show the duty of pull and push dynamometer.
Said central processing unit is connected with control signal output ends, and said control signal output ends is used for exporting control signal to control circuit in the power value of being surveyed during greater than predetermined value.
The numeral that the utility model provides shows that pull and push dynamometer has the following advantages:
The utility model provides a kind of numeral to show pull and push dynamometer, comprises mechanical body, has pull bar, and said pull bar is by said determinand pulling or promotion; The numeral display module is used for when said pull bar is spurred or promotes by said determinand, showing the power value; Said digital display module comprises strain-gauge transducer, the analog to digital converter that is connected with said strain-gauge transducer, the central processing unit that is connected with said analog to digital converter and the digital indicator that is connected with said central processing unit; Said strain-gauge transducer comprises fixed part and crushed element; And be fixed on the said mechanical body through said fixed part; Said crushed element deforms when said pull bar is spurred or promotes by said determinand and exports an analog voltage signal to said analog to digital converter; Said analog to digital converter changes into digital signal and said digital signal is exported to said central processing unit after said analog voltage signal is amplified, and said central processing unit is converted into the power value with said digital signal and exports to said digital indicator.The numeral of utilizing the utility model to provide shows when pull and push dynamometer is measured, and does not need human eye to estimate and reads the power value, directly carries out the power value through said digital indicator and shows, has avoided reading error, has improved measuring accuracy.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is that the utility model provides numeral to show the inner structure synoptic diagram of pull and push dynamometer;
Fig. 2 is that the utility model provides numeral to show the circuit block diagram of the digital display module of pull and push dynamometer;
Reference numeral is expressed as among the figure:
The 1-mechanical body; The 2-fixed orifice; The 3-strain-gauge transducer; The 4-pull bar.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the optimal technical scheme of the utility model is described.
As shown in Figure 1, present embodiment provides a kind of numeral to show pull and push dynamometer, comprises mechanical body 1, has pull bar 4, and said pull bar 4 is by said determinand pulling or promotion; The numeral display module is used for when said pull bar 4 is spurred or promotes by said determinand, showing the power value; Said digital display module (its circuit block diagram is seen Fig. 2) comprises strain-gauge transducer 3, the analog to digital converter that is connected with said strain-gauge transducer 3, the central processing unit that is connected with said analog to digital converter and the digital indicator that is connected with said central processing unit; Said strain-gauge transducer 3 comprises fixed part and crushed element; And be fixed on the said mechanical body 1 through said fixed part; Said crushed element deforms when said pull bar 4 is spurred or promotes by said determinand and exports an analog voltage signal to said analog to digital converter; Said analog to digital converter changes into digital signal and said digital signal is exported to said central processing unit after said analog voltage signal is amplified, and said central processing unit is converted into the power value with said digital signal and exports to said digital indicator.
In the present embodiment, said digital indicator is a LCD.
In the present embodiment; The said fixed part of said strain-gauge transducer 3 has two fixed orifices 2; Inserting bolts in the said fixed orifice 2, said strain-gauge transducer 3 is fixed on the said mechanical body 1 through being threaded between said fixed orifice 2 and the said bolt.
In the present embodiment, said central processing unit is connected with computing machine.
In the present embodiment, said central processing unit is connected with indicating device, and said indicating device is used to indicate said numeral to show the duty of pull and push dynamometer.
In the present embodiment, said central processing unit is connected with control signal output ends, and said control signal output ends is used for exporting control signal to control circuit in the power value of being surveyed during greater than predetermined value.
In the present embodiment, control for the switch to said central processing unit, said central processing unit is connected with switching device, and at this, said switching device is a keyboard.
In the present embodiment; In order to guarantee that said central processing unit has sufficient delivery; Said central processing unit connects feed circuit; When said central processing unit electric weight is not enough, can give charging signals of said feed circuit, said feed circuit charge to said central processing unit after receiving said charging signals.
The numeral of utilizing present embodiment to provide shows that it is (following is that example describes with the promotion, and the principle of work during pulling is identical with it) that pull and push dynamometer is carried out the process of force measurement:
When determinand promotes said pull bar 4; Said pull bar 4 acts on said acting force on the said strain-gauge transducer 3; The crushed element of said strain-gauge transducer 3 deforms; And to analog voltage signal of said analog to digital converter output, said analog to digital converter changes into digital signal and said digital signal is exported to said central processing unit after said analog voltage signal is amplified, and said central processing unit is converted into the power value with said digital signal and exports to said digital indicator; Said digital indicator shows this power value, accomplishes and measures.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are within the protection domain of the utility model.
Claims (6)
1. numeral shows pull and push dynamometer, comprises
Mechanical body (1) has pull bar (4), and said pull bar (4) is by said determinand pulling or promotion;
The numeral display module is used for when said pull bar (4) is spurred or promotes by said determinand, showing the power value;
It is characterized in that:
Said digital display module comprises strain-gauge transducer (3), the analog to digital converter that is connected with said strain-gauge transducer (3), the central processing unit that is connected with said analog to digital converter and the digital indicator that is connected with said central processing unit;
Said strain-gauge transducer (3) comprises fixed part and crushed element; And be fixed on the said mechanical body (1) through said fixed part; Said crushed element deforms when said pull bar (4) is spurred or promotes by said determinand and exports an analog voltage signal to said analog to digital converter; Said analog to digital converter changes into digital signal and said digital signal is exported to said central processing unit after said analog voltage signal is amplified, and said central processing unit is converted into the power value with said digital signal and exports to said digital indicator.
2. numeral according to claim 1 shows pull and push dynamometer, it is characterized in that:
Said digital indicator is a LCD.
3. numeral according to claim 2 shows pull and push dynamometer, it is characterized in that:
The said fixed part of said strain-gauge transducer (3) has at least one fixed orifice (2), and said strain-gauge transducer (3) is fixed on the said mechanical body (1) through said fixed orifice (2).
As requested among the 1-3 each described numeral show pull and push dynamometer, it is characterized in that:
Said central processing unit is connected with computing machine.
5. numeral according to claim 4 shows pull and push dynamometer, and it is characterized in that: said central processing unit is connected with indicating device, and said indicating device is used to indicate said numeral to show the duty of pull and push dynamometer.
6. numeral according to claim 5 shows pull and push dynamometer, and it is characterized in that: said central processing unit is connected with control signal output ends, and said control signal output ends is used for exporting control signal to control circuit in the power value of being surveyed during greater than predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220300181 CN202599574U (en) | 2012-06-21 | 2012-06-21 | Digital display push-pull force meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220300181 CN202599574U (en) | 2012-06-21 | 2012-06-21 | Digital display push-pull force meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599574U true CN202599574U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220300181 Expired - Fee Related CN202599574U (en) | 2012-06-21 | 2012-06-21 | Digital display push-pull force meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202599574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530562A (en) * | 2019-07-17 | 2019-12-03 | 深圳市德瑞茵精密科技有限公司 | A kind of aseismatic mechanism of pushing and drawing force testing machine and its pressure sensor |
-
2012
- 2012-06-21 CN CN 201220300181 patent/CN202599574U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530562A (en) * | 2019-07-17 | 2019-12-03 | 深圳市德瑞茵精密科技有限公司 | A kind of aseismatic mechanism of pushing and drawing force testing machine and its pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20180621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |