CN2826383Y - Flush type force cell - Google Patents
Flush type force cell Download PDFInfo
- Publication number
- CN2826383Y CN2826383Y CN 200520013382 CN200520013382U CN2826383Y CN 2826383 Y CN2826383 Y CN 2826383Y CN 200520013382 CN200520013382 CN 200520013382 CN 200520013382 U CN200520013382 U CN 200520013382U CN 2826383 Y CN2826383 Y CN 2826383Y
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- elastic body
- utility
- stress
- model
- stressless
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Force In General (AREA)
Abstract
The utility model discloses a flush type force cell which is provided with an elastic body. The utility model is characterized in that the elastic body is in a cylindrical structure and is divided into three parts along the axial direction. The middle part is a stress zone, both ends are stressless zones, and an annular groove is arranged between the stress zone and the stressless zones as the flexible isolation between the stress zone and the stressless zones. The diameter of the stress zone is larger than that of the stressless zones. Both of the two ends of the elastic body are separately provided with a coaxial blind hole, and bottoms of the blind holes are stuck with a strain gauge respectively. A small hole for a signal line connected with the two strain gauges to penetrate is arranged between the two blind holes. The side wall of the stressless zone at one end of the elastic body is also provided with a pin hole for the signal output line to penetrate. The utility model has the advantages that the inner stress situation of a load-bearing member can be directly measured, installation is easy, the utility model is suitable for the field work, measurement accuracy is high, etc. The utility model is especially suitable for the stress situation measurement of the load-bearing members in agricultural machines, weight lifting lorries, overloading alarm, track weighing, high towers, etc.
Description
Technical field
The utility model relates to a kind of force cell, is the embedded force cell that character that a kind of resistance changes with amount of force is come metering power or stress specifically.
Background technology
At agricultural machinery, weight lifting truck, overload-alarm, track is weighed and high tower etc. bears in the member of various elastic stresses such as shearing, bending, distortion, stretching, compression, usually need be when it stands external force, its inside force-bearing situation is tested, with the safety case of monitoring member.But currently used test mode is limit by survey instrument, and normally some round-about ways can not directly be measured its inner force-bearing situation, thereby may have bigger deviation, are unfavorable for accurately assessing.
Summary of the invention
Technical problem underlying to be solved in the utility model is the embedded force cell that is to provide a kind of measuring accuracy height and can directly measures the component inside force-bearing situation.
For solving the problems of the technologies described above, the utility model adopts following technical proposals:
The embedded force cell of this kind, it has elastic body, it is characterized in that described elastic body is a cylindrical structural, elastic body axially is divided into three parts along it, center section is stressed district, two ends are the non-stress district, be provided with annular groove as the flexible isolating between the two between stressed district and the non-stress district, and the diameter in stressed district is greater than the diameter in non-stress district, elastomeric two ends respectively are provided with a coaxial blind hole, the bottom of blind hole respectively is pasted with a strainometer, has between two blind holes to hold the aperture that the signal wire that connects two strainometers passes, and also has on the sidewall in the non-stress district of elastic body one end to hold the fairlead that output line passes.
Described elastomeric stressed district outer wall is provided with straight knurling.
The utility model has following beneficial effect: 1, it can be filled in this embedded force cell in the hole by boring on member, directly measures the inside stressing conditions of member; 2, install easily, be fit to field work; 3, elastic body can be with manufacturings such as stainless steel or alloy steel, long working life.The setting of 4 straight knurling helps the firm installation of sensor, is not easy to produce relative slip, and lifting surface area is relatively stable, and is stressed more even, helps reducing measuring error.5, as the setting of the annular groove of the usefulness of flexible isolating, help improving the sensitivity of sensor, and reduce measuring error.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the vertical view of embodiment among Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Meaning is a preferred embodiment of the present utility model as shown in Figure 1 and Figure 2.As shown in Figure 1 and Figure 2, the embedded force cell of present embodiment, it has the elastic body 1 that stainless steel is made, and elastic body 1 is a cylindrical structural, and elastic body 1 axially is divided into three parts along it, and center section is stressed district 2, two ends are non-stress district 3.Be provided with annular groove 4 as the flexible isolating between the two between stressed district 2 and the non-stress district 3, and the diameter in stressed district 2 is greater than the diameter in non-stress district 3.The two ends of elastic body 1 respectively are provided with a coaxial blind hole 5, and the bottom of blind hole 5 respectively is pasted with a strainometer 6.Have between two blind holes 5 and can hold the aperture that the signal wire that connects two strainometers 6 passes, and form a senser element by Wheatstone bridge.Also have on the sidewall in the non-stress district 3 of elastic body 1 one ends and hold the lead-in wire screw 8 that output line 7 passes and fix.In addition, also be processed with straight knurling 9 on stressed district 2 outer walls of elastic body 1.Method of testing is as follows:, the sizeable hole of processing on the member of needs test, in this embedded force cell extruding hand-hole, when test member is stressed, the resistance of strain ga(u)ge promptly changes, thereby export and stress value correspondent voltage signal, can record the stressing conditions of component inside.
Claims (2)
1, a kind of embedded force cell, it has elastic body, it is characterized in that described elastic body is a cylindrical structural, elastic body axially is divided into three parts along it, center section is stressed district, two ends are the non-stress district, be provided with annular groove as the flexible isolating between the two between stressed district and the non-stress district, and the diameter in stressed district is greater than the diameter in non-stress district, elastomeric two ends respectively are provided with a coaxial blind hole, the bottom of blind hole respectively is pasted with a strainometer, has between two blind holes to hold the aperture that the signal wire that connects two strainometers passes, and also has on the sidewall in the non-stress district of elastic body one end to hold the fairlead that output line passes.
2, embedded force cell according to claim 1 is characterized in that described elastomeric stressed district outer wall is provided with straight knurling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013382 CN2826383Y (en) | 2005-07-20 | 2005-07-20 | Flush type force cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013382 CN2826383Y (en) | 2005-07-20 | 2005-07-20 | Flush type force cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2826383Y true CN2826383Y (en) | 2006-10-11 |
Family
ID=37066571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520013382 Expired - Fee Related CN2826383Y (en) | 2005-07-20 | 2005-07-20 | Flush type force cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2826383Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539464B (en) * | 2009-04-17 | 2010-09-22 | 北京航空航天大学 | Elastic torsion shaft |
| CN101666692B (en) * | 2009-09-23 | 2011-02-16 | 东南大学 | Stress sensing testing structure |
| CN105698745A (en) * | 2016-01-26 | 2016-06-22 | 南京航空航天大学 | A simple-component strain amplification structure |
-
2005
- 2005-07-20 CN CN 200520013382 patent/CN2826383Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539464B (en) * | 2009-04-17 | 2010-09-22 | 北京航空航天大学 | Elastic torsion shaft |
| CN101666692B (en) * | 2009-09-23 | 2011-02-16 | 东南大学 | Stress sensing testing structure |
| CN105698745A (en) * | 2016-01-26 | 2016-06-22 | 南京航空航天大学 | A simple-component strain amplification structure |
| CN105698745B (en) * | 2016-01-26 | 2018-02-02 | 南京航空航天大学 | Simple component strains structure for amplifying |
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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: 20061011 Termination date: 20110720 |