CN203772644U - Connecting rod rigidity testing device - Google Patents
Connecting rod rigidity testing device Download PDFInfo
- Publication number
- CN203772644U CN203772644U CN201420102161.7U CN201420102161U CN203772644U CN 203772644 U CN203772644 U CN 203772644U CN 201420102161 U CN201420102161 U CN 201420102161U CN 203772644 U CN203772644 U CN 203772644U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- fixedly connected
- pin
- measuring
- rigidity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 208000004141 microcephaly Diseases 0.000 claims description 11
- 210000005239 tubule Anatomy 0.000 claims description 9
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a connecting rod rigidity testing device which is characterized in that fixing clamping plates are fixedly connected on loading platforms at the upper and lower ends, wherein a small-head pin is fixedly connected with the upper end of a connecting rod; a large-head pin is fixedly connected with the lower end of the connecting rod; the connecting rod is fixedly connected with the loading platforms at the upper and lower ends through the fixing clamping plates; a thin measuring tube is vertically and fixedly connected with the large-head pin; a measuring needle on the top of the thin measuring tube is fixedly connected with the small-head pin through clamping blocks; one end of an extension meter is clamped on the measuring needle; the thin measuring tube is clamped by the other ends of the extension meter. By accurately measuring the deformation of circle centers of a large-head hole and a small-head hole of an engine connecting rod under the action of load, the rigidity of the engine connecting rod can be accurately measured.
Description
Technical field
The utility model relates to a kind of connecting rod stiffness test device, belongs to connection rod of automobile engine experimental technique field, is applied to vapour/diesel motor connecting rod stiffness test.Engine link stiffness test is for measuring the rigidity of connecting rod, the i.e. deformation of connecting rod under load.
Background technology
The pilot project of engine link mainly contains experiment on fatigue properties and material property check.Because the safety coefficient of link design is in the past very large, quality is heavier, and rigidity is excessively rich, so do not check the rigidity of connecting rod.Along with society requires more and more stricter to automotive light weight technology, fuel economy and exhaust emissions etc.Requirement to engine link is also more and more higher.The development trend of connection rod of automobile engine is at present: adopt new material, in the time of by optimal design weight reduction, guarantee its intensity, rigidity and fatigue lifetime.Along with the lightweight of connecting rod, the rigidity of connecting rod becomes important pilot project.Existing connecting rod stiffness test adopts common tensile and compression testing machine conventionally, by load and displacement (distortion) situation of the load and displacement sensor measurement connecting rod on testing machine, but the displacement recording comprises the deflection of link lever deflection and testing machine and test fixture.Before measured value and connecting rod true strain amount, there is certain error.
Summary of the invention
The purpose of this utility model is to provide a kind of connecting rod stiffness test device, and it,, by measuring accurately the deflection of engine link between load lower link big end hole and microcephaly's hole circle heart, measures the rigidity of engine link accurately.
The technical solution of the utility model is achieved in that a kind of connecting rod stiffness test device, it is characterized in that: on the weighted platform at upper and lower two ends, be fixedly connected with strap, microcephaly's pin is fixedly connected on the upper end of connecting rod, major part pin is fixedly connected on the lower end of connecting rod, connecting rod is fixedly connected with the weighted platform at upper and lower two ends by strap, measuring tubule is vertically fixedly connected with major part pin, the surveyingpin of measuring tubule top is fixedly connected with microcephaly's pin by grip block, and extensometer one end is clamped on surveyingpin, tubule is measured in other end clamping.
Good effect of the present utility model is that it passes through to measure accurately the deflection of engine link between load lower link big end hole and microcephaly's hole circle heart, measures accurately the rigidity of engine link.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is grip block structural drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as Fig. 1, shown in 2, a kind of connecting rod stiffness test device, it is characterized in that: on the weighted platform 1 at upper and lower two ends, be fixedly connected with strap 2, microcephaly sells 4 upper ends that are fixedly connected on connecting rod 3, major part pin 5 is fixedly connected on the lower end of connecting rod 3, connecting rod 3 is fixedly connected with the weighted platform 1 at upper and lower two ends by strap 2, measuring tubule 9 is vertically fixedly connected with major part pin 5 by grip block 6, surveyingpin 7 is vertically sold 4 with microcephaly by grip block 6 and is fixedly connected with, surveyingpin 7 and measurement tubule 9 are parallel to each other, but mutually do not contact, extensometer 8 one end are clamped on surveyingpin 7, tubule 9 is measured in other end clamping, the displacement of measuring is like this deflection between the connecting rod concentric reducer hole circle heart.
Not mounting bush and bearing shell in the microcephaly hole of connecting rod 3 and big end hole.The impact that during Elimination test, lining, bearing shell compression deformation are measured link lever deflection.Microcephaly sells 4 and adopts interference fit with connecting rod small end hole, and major part pin 5 adopts interference fit with crank pin end pore; Microcephaly sells 4, major part pin 5 end face shaft core position thread mill drillings, for grip block 6 is installed.
Weighted platform 1 is installed on tensile and compression testing machine.And the data line of extensometer is connected on tensile and compression testing machine.Now can start connecting rod stiffness test.By tensile and compression testing machine load transducer, gather load signal, by extensometer, gather rod deformation signal, can measure exactly the load and displacement curve of connecting rod, i.e. the rigidity of connecting rod.
Claims (1)
1. a connecting rod stiffness test device, it is characterized in that: on the weighted platform at upper and lower two ends, be fixedly connected with strap, microcephaly's pin is fixedly connected on the upper end of connecting rod, major part pin is fixedly connected on the lower end of connecting rod, connecting rod is fixedly connected with the weighted platform at upper and lower two ends by strap, measure tubule and be vertically fixedly connected with major part pin, the surveyingpin of measuring tubule top is fixedly connected with microcephaly's pin by grip block, and extensometer one end is clamped on surveyingpin, tubule is measured in other end clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420102161.7U CN203772644U (en) | 2014-03-07 | 2014-03-07 | Connecting rod rigidity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420102161.7U CN203772644U (en) | 2014-03-07 | 2014-03-07 | Connecting rod rigidity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772644U true CN203772644U (en) | 2014-08-13 |
Family
ID=51289822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420102161.7U Expired - Fee Related CN203772644U (en) | 2014-03-07 | 2014-03-07 | Connecting rod rigidity testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772644U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346212A (en) * | 2019-07-25 | 2019-10-18 | 中国第一汽车股份有限公司 | A kind of quick testing auxiliary device of plate plane strain limit and test method |
| CN116086743A (en) * | 2023-03-28 | 2023-05-09 | 上海航天电子通讯设备研究所 | Displacement transmission device for measuring overall rigidity of rod piece |
| CN119533394A (en) * | 2025-01-22 | 2025-02-28 | 之江实验室 | A strain testing device and method for 3D printing non-standard specimens |
-
2014
- 2014-03-07 CN CN201420102161.7U patent/CN203772644U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346212A (en) * | 2019-07-25 | 2019-10-18 | 中国第一汽车股份有限公司 | A kind of quick testing auxiliary device of plate plane strain limit and test method |
| CN116086743A (en) * | 2023-03-28 | 2023-05-09 | 上海航天电子通讯设备研究所 | Displacement transmission device for measuring overall rigidity of rod piece |
| CN119533394A (en) * | 2025-01-22 | 2025-02-28 | 之江实验室 | A strain testing device and method for 3D printing non-standard specimens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204556212U (en) | A kind of sheet metal tack-weld impact property proving installation | |
| CN107514965A (en) | A kind of crank spindle roundness and bent axle coaxiality error detection means | |
| KR20100108991A (en) | Test device and method of aircraft landing gear | |
| CN104198197A (en) | Method and device for testing dynamic stiffness of car-body mounting points | |
| CN104406850A (en) | Measuring device for rigidity of rubber bushings and usage method thereof | |
| CN104483112A (en) | Fatigue test method and fixture thereof of rubber bushing | |
| CN202274987U (en) | Centering device for engine testing stand | |
| CN105372067A (en) | Torsional fatigue test device for crankshaft | |
| CN103115758B (en) | Round spring test device | |
| CN209257863U (en) | Suspending apparatus and vehicle | |
| CN203231948U (en) | A dual-piston ring-cylinder liner friction and wear test bench | |
| CN204718770U (en) | Auto lamp front shroud proving installation | |
| CN107607332B (en) | Novel tire constraint mode test device | |
| CN209624082U (en) | A kind of shock absorber mounting points hard spot load test device | |
| CN102331352B (en) | Dumper frame unloading process simulation test method | |
| CN103604586B (en) | The dynamic bearer properties test board of a kind of internal combustion engine hydraulic tensioner | |
| CN118568872A (en) | Simulation analysis method and related device for testing rear shell of medium-light truck transmission | |
| CN201837449U (en) | Torsional vibration tester for novel crankshaft torsional vibration damper | |
| CN105352885B (en) | A kind of fixture and method of testing for being used to test different angle z pin bridge linking effects | |
| CN205749108U (en) | A kind of dynamic tensile test anti-slip cramping apparatus device | |
| CN211234928U (en) | A jog stiffness test device for rear torsion beam installation | |
| CN204255548U (en) | The flywheel tunable arrangement of vehicle dynamic test machine | |
| CN103175460B (en) | A kind of special gauge for measuring crankshaft fillet undercut groove depth | |
| CN204807073U (en) | Measure auxiliary device of stud axiality | |
| Otipka et al. | Modal properties diagnostics of the high-pressure fuel injection pipes in off-road diesel engine |
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: 20140813 Termination date: 20200307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |