CN206221466U - A kind of positioning screw of test engine torsional oscillation - Google Patents
A kind of positioning screw of test engine torsional oscillation Download PDFInfo
- Publication number
- CN206221466U CN206221466U CN201621076336.7U CN201621076336U CN206221466U CN 206221466 U CN206221466 U CN 206221466U CN 201621076336 U CN201621076336 U CN 201621076336U CN 206221466 U CN206221466 U CN 206221466U
- Authority
- CN
- China
- Prior art keywords
- positioning screw
- torsional oscillation
- engine
- utility
- test
- 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
Landscapes
- Testing Of Engines (AREA)
Abstract
The utility model is related to automotive tools technical field, more particularly to a kind of positioning screw of test engine torsional oscillation.The utility model provides a kind of positioning screw of test engine torsional oscillation, the positioning screw includes afterbody, supporting part, fixed part, connecting portion, end from bottom to top, the end has been radially arranged hex nut installation portion, and the positioning screw is for integral type and through Overheating Treatment.The utility model causes that torsion-testing becomes more convenient：（1）The test of motivation torsional oscillation becomes simpler, quick, saves the time, reduces stand standby time；（2）Only installed with crank pulley bolt, reduce the change to engine miscellaneous part, installation process is simple, does not influence engine to use；（3）Additional mass is small, reduces the influence to engine performance；（4）It is generally applicable on homologous series engine, and can batch machining, it is reusable.
Description
Technical field
The utility model is related to automotive tools technical field, more particularly to a kind of positioning screw of test engine torsional oscillation.
Background technology
Torsional oscillation is an important referential data for engine evaluated, and torsional oscillation test is quite general in engine design process
Time.Existing torsional oscillation test fixture is designed with many patterns, and Main Function is that sensor is fixed on into engine crankshaft belt
Above wheel end, flywheel or train, to measure the change of rotating speed.Although these mounting means can complete torsional vibration measurement,
Some shortcomings are there are during installing and using：
（1）Many torsional oscillations test used positioner at present, and structure is more complicated, and extra rotation is brought to bent axle
Inertia；
（2）Positioned by the location hole of engine cylinder-body, it is necessary to processed extra locating support and frock, for difference
The type versatility of outward appearance is very poor；
（3）Install every time needs be accurately positioned, centering, adjustment process tedious, cumbersome have a strong impact on test speed；
（4）Positioning, debugging unit need Precision Machining, and cost of manufacture is high, and the process-cycle is long.
Utility model content
For defect present in prior art or deficiency, technical problem to be solved in the utility model is：There is provided one
The positioning screw of kind of test engine torsional oscillation, simplifies torsional oscillation test installation procedure, and ensure the axiality in installation process and
Precision, reduces cost of manufacture and process-cycle, accelerates test process.
To achieve these goals, the technical scheme that the utility model is taken is to provide a kind of determining for test engine torsional oscillation
Position screw rod, the positioning screw includes afterbody, supporting part, fixed part, connecting portion, end from bottom to top, and the end radially sets
Hex nut installation portion is equipped with, the positioning screw is for integral type and through Overheating Treatment.
Used as further improvement of the utility model, the hex nut installation portion inwall is provided with screw thread, and its bottom is
Cone.
As further improvement of the utility model, the end of the tail radius less than the positioning screw of the positioning screw
Portion.
Used as further improvement of the utility model, the radius of the supporting part of the positioning screw is more than the positioning screw
Fixed part.
Used as further improvement of the utility model, the supporting part is circle.
Used as further improvement of the utility model, the fixed part is anistree circular.
The beneficial effects of the utility model are：The utility model causes that torsion-testing becomes more convenient：
1）The test of motivation torsional oscillation becomes simpler, quick, saves the time, reduces stand standby time；
2）Only installed with crank pulley bolt, reduce the change to engine miscellaneous part, installed simple, do not influenceed
Engine is used；
3）Additional mass is small, reduces the influence to engine performance；
4）It is generally applicable on homologous series engine, and can batch machining, it is reusable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is torsional oscillation frock scheme of installation；
Wherein numeral is represented：1st, afterbody；2nd, supporting part；3rd, fixed part；4th, connecting portion；5th, end；6th, hex nut is installed
Portion；7th, positioning screw；8th, bent axle；9th, engine body；10th, crank pulley；11st, pad；12nd, sensor；13rd, fixed cover；
14th, anti-dropping gasket；15th, hexagon socket cap head screw.
Specific embodiment
Explanation and specific embodiment are further illustrated to the utility model below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model provides a kind of positioning screw of test engine torsional oscillation, the positioning screw 7 includes
Afterbody 1 from bottom to top, supporting part 2, fixed part 3, connecting portion 4, end 5, the end 5 has been radially arranged hex nut and has installed
Portion 6, the positioning screw 7 is for integral type and through Overheating Treatment.
The inwall of hex nut installation portion 6 is provided with screw thread, and its bottom is cone.
End 5 of the radius of afterbody 1 of the positioning screw less than the positioning screw.
Fixed part 3 of the radius of the supporting part 2 of the positioning screw more than the positioning screw.
The supporting part 2 is circle.
The fixed part 3 is anistree circular.
As shown in figure 1, the torsional oscillation positioning screw facilitates the installation and removal of frock by left-right integrated processing, can
The axiality of high unity is also ensured after guarantee being dismounted for multiple times, encoder measurement error in test process is reduced, ensures multiple
The quality for using.
As shown in Fig. 2 the left side of the frock is the bolt for substituting belt pulley, the right is to install regular coding device axle.Utilize
The frock carries out torsional oscillation test on certain engine body 3, it is only necessary to dismantles the bolt of the crank pulley 10 of primary motivation, changes
Upper the design positioning screw, in positioning screw insertion bent axle 2, anti-dropping gasket 14, hex nut peace are loaded onto in positioning screw end
Dress portion 6 installs hexagon socket cap head screw 15, and its size is M8 × 16, and sensor 12 is loaded into the one end of positioning screw 7, uses
Fixed cover 13 and nut are fixed, and the supporting part of positioning screw pushes down pad 11, it is ensured that sensor is not with bent axle 2 in test process
Rotate, can not move outward vertically.The positioning screw can bear and former bolt identical moment of torsion through Overheating Treatment, it is ensured that hair
It is normal, steady in motivation running.
The requirement that the frock can be designed according to different type of machines, different belt pulleys, unification processes same Engine Series
Test fixture, wherein install reach, hex nut length can according to different type of machines requirement be adjusted, sensor peace
Dress shaft position then keeps constant.Encoder installation axle status requirement ensures preferable circular arc degree, and requires through Overheating Treatment, it is ensured that
Mounting tool meets belt pulley torque requiremnt in test process.
Innovative point of the present utility model：
（1）Using the structure of belt pulley bolt type, structure gross mass is small, and the additional mass to engine crankshaft is smaller；
（2）Need not be fixed by the location hole of engine cylinder-body, be all applicable for institute's organic type；
（3）Sensor is put into installation axle and is fixed with bolt, installs simple, it is not necessary to centering, adjustment, when saving installation
Between；
（4）According to different series type, size can batch machining, cost of manufacture is relatively low, and the process-cycle is short.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all regarded
To belong to protection domain of the present utility model.
Claims (6)
1. a kind of positioning screw of test engine torsional oscillation, it is characterised in that：The positioning screw include afterbody from bottom to top,
Supporting part, fixed part, connecting portion, end, the end have been radially arranged hex nut installation portion, and the positioning screw is integrated
Formula and through Overheating Treatment.
2. the positioning screw of test engine torsional oscillation according to claim 1, it is characterised in that：The hex nut is installed
Portion's inwall is provided with screw thread, and its bottom is cone.
3. the positioning screw of test engine torsional oscillation according to claim 1, it is characterised in that：The tail of the positioning screw
End of portion's radius less than the positioning screw.
4. the positioning screw of test engine torsional oscillation according to claim 1, it is characterised in that：The branch of the positioning screw
Fixed part of the radius of support part more than the positioning screw.
5. the positioning screw of test engine torsional oscillation according to claim 4, it is characterised in that：The supporting part is circle
Shape.
6. the positioning screw of test engine torsional oscillation according to claim 4, it is characterised in that：The fixed part is anise
It is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621076336.7U CN206221466U (en) | 2016-09-23 | 2016-09-23 | A kind of positioning screw of test engine torsional oscillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621076336.7U CN206221466U (en) | 2016-09-23 | 2016-09-23 | A kind of positioning screw of test engine torsional oscillation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221466U true CN206221466U (en) | 2017-06-06 |
Family
ID=58782206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621076336.7U Expired - Fee Related CN206221466U (en) | 2016-09-23 | 2016-09-23 | A kind of positioning screw of test engine torsional oscillation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221466U (en) |
-
2016
- 2016-09-23 CN CN201621076336.7U patent/CN206221466U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206177175U (en) | A detector for measuring solid of revolution part runout amount | |
| CN207050689U (en) | Taper roll bearing assembles the measurement apparatus of height | |
| CN202008344U (en) | Radial runout detector for inner race of bearing | |
| CN207026993U (en) | A kind of quick Self-positioning clamp of high accuracy | |
| CN205940348U (en) | Support lateral runout examines utensil | |
| CN204064926U (en) | Standard fasteners Machine Vision Inspecting System | |
| CN206627240U (en) | A kind of bearing staring torque measurement apparatus | |
| CN206221466U (en) | A kind of positioning screw of test engine torsional oscillation | |
| CN105157508B (en) | The tooth runout detection means of bevel gear | |
| CN203858065U (en) | Static balance detection machine of weight measuring grinding wheel | |
| CN204269060U (en) | Multi-function motor support seam axiality detection device | |
| CN106425620A (en) | Lathe clamp for machining hub | |
| CN102133709A (en) | Position correcting device for positioning gear in automobile seat | |
| CN202097549U (en) | Position correcting device for positioning gear of automobile seat | |
| CN203432751U (en) | Dynamic-balance device used for three-point-positioning grinding-wheel detection | |
| CN205027250U (en) | Utensil is examined to automobile wheel hub degree of beating | |
| CN104162797A (en) | Rotating and fixing clamp | |
| CN207123248U (en) | A kind of bicycle rim out of roundness test machine | |
| CN204868545U (en) | Bitonic whole centre frame of high accuracy | |
| CN105352661B (en) | A kind of FSAE racing engine rotor dynamic balancing fixture | |
| CN204388819U (en) | A kind of automotive trim cubing | |
| CN207464236U (en) | A kind of processing unit (plant) of multi-cylinder diesel engine unit parts | |
| CN204053547U (en) | Rotate stationary fixture | |
| CN208322348U (en) | A kind of novel vertical tapping machine | |
| CN204881406U (en) | A device for detecting car baffle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 |