CN207487975U - A kind of easy detection device of load sensor dynamic property - Google Patents
A kind of easy detection device of load sensor dynamic property Download PDFInfo
- Publication number
- CN207487975U CN207487975U CN201721308807.7U CN201721308807U CN207487975U CN 207487975 U CN207487975 U CN 207487975U CN 201721308807 U CN201721308807 U CN 201721308807U CN 207487975 U CN207487975 U CN 207487975U
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- CN
- China
- Prior art keywords
- measuring machine
- force measuring
- arm
- dynamic property
- load sensor
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- 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
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- Testing Of Engines (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a kind of easy detection devices of load sensor dynamic property, including the dynamometer being connect with engine, brake arm, correction arm are separately installed in the both sides of the dynamometer, the outer end of the brake arm is equipped with the force measuring machine of detection correction arm deflection, and a scale pan is hung on the correction arm.Quick, the easy detection load sensor dynamic property of the energy of the utility model.
Description
Technical field
The utility model is related to engine detection field, more specifically, it relates to a kind of load sensor dynamic property
Easy detection device.
Background technology
At present, in the engine thermal running-in test process of engine manufacturing field, waterpower power-measuring system is widely used, and is born
Lotus sensor is mounted in the important detection part on hydraulic dynamometer.Dynamometer using static shift correction as foundation, though sometimes
Static check is very accurate, and the data deviation that can be detected in engine thermal running-in test is larger, but can be without what method
Production scene detection judges it is caused by load sensor bad dynamic performance or caused by intermediate transmission link power attenuation.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned deficiency for the prior art, and the purpose of this utility model is
There is provided one kind can implement in production scene, and can quickly, easy detect of the easy load sensor dynamic property judged fill
It puts.
To achieve the above object, the utility model provides a kind of easy detection device of load sensor dynamic property,
Including the dynamometer being connect with engine, brake arm, correction arm, the brake arm are separately installed in the both sides of the dynamometer
Outer end be equipped with detection correction arm deflection force measuring machine, it is described correction arm on be hung with a scale pan.
Further, the force measuring machine includes pedestal, is vertically arranged on the pedestal and the brake arm
The pull pressure sensor of outer end connection, the both ends of the pull pressure sensor are equipped with hinged with the brake arm, pedestal respectively
Slip-knot bolt；The force measuring machine further includes the display device being connect with the pull pressure sensor.
Advantageous effect
Compared with prior art, the advantageous effect of the easy detection device of the load sensor dynamic property of the utility model
It is as follows：The detection device of the utility model can be implemented in production scene, can be quick by production scene condition simulation dynamic environment
Simplicity judge, overcome do not have in the prior art use method production scene detection judge load sensor dynamic property whether
Be deteriorated, avoid directly replace it is uncertain can solve the problems, such as and cause the time and the cost allowance of part, saving removes inspection
Time and labor intensity, improve working efficiency.
Description of the drawings
Fig. 1 is the structure diagram of the easy detection device of the load sensor dynamic property of the utility model；
Fig. 2 is the schematic enlarged-scale view of force measuring machine in the utility model.
In figure：1st, dynamometer；2nd, arm is corrected；3rd, force measuring machine；4th, scale pan；5th, pull pressure sensor；6th, pedestal；7th, it is living
Tie bolt；8th, brake arm；9th, counterweight.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
Specific embodiment of the present utility model is such：As shown in Figs. 1-2, a kind of load sensor dynamic property
Including the dynamometer 1 being connect with engine, brake arm 8, correction are separately installed in the both sides of dynamometer 1 for easy detection device
Arm 2, the outer end of brake arm 8 are equipped with the force measuring machine 3 of detection correction 2 deflection of arm, correct and are hung with a scale pan 4 on arm 2, can
It is reequiped at dynamometer test scene, reequips simple in structure, easy disassembling.
In the present embodiment, force measuring machine 3 includes pedestal 6, is vertically arranged on pedestal 6 and connects with the outer end of brake arm 8
The pull pressure sensor 5 connect, the both ends of pull pressure sensor 5 are equipped with slip-knot bolt 7 hinged with brake arm 8, pedestal 6 respectively；
Force measuring machine 3 further includes the display device being connect with pull pressure sensor 5, hinged by slip-knot bolt 7, ensures pressure sensing
The accurate installation of device 5 ensures that pull pressure sensor 5 Impact direction in both ends is correct, improves the accuracy of detection of pull pressure sensor 5.
During specific detection, the convenient detection method of load sensor dynamic property, including one dynamometer 1 of setting and engine
Connection, it is further comprising the steps of：Step 1 loads onto correction arm 2, brake arm 8 in the both sides of dynamometer 1, and in correction arm 2 respectively
Outer end be connected with detection dynamometer 1 load force measuring machine 3 and correction arm 2 on hang a scale pan 4；Step 2,
Static shift correction is carried out to force measuring machine 3 under engine stop-state, the counterweight 9 of different weight, adjustment are first added on scale pan 4
Force measuring machine 3 makes its load value corresponding with each 9 weight of counterweight, and static correction is carried out to force measuring machine 3, including zeroing detection and
The detection of each measurement data, preliminary to confirm force measuring machine 3 under quiescent conditions, accuracy of reading, service condition are good；Step 3,
Start engine at the uniform velocity operate, toward scale pan 4 on add different weight counterweight 9, will on adjacent force measuring machine 3 twice bear
Compared with the difference of the difference of charge values and adjacent 9 value of counterweight twice, the pull pressure sensor 5 in 3 force measuring machine 3 of force measuring machine is judged
Dynamic property, the difference of load value and the difference of adjacent 9 value of counterweight twice on adjacent force measuring machine 3 twice compare, such as
Fruit deviation is excessive, then needs replacing pull pressure sensor 5 or repair measuring mechanism, if deviation in tolerance band, can be after
It is continuous to use, carry out Engine dynamometer tests；The convenient detection method of this load sensor dynamic property can be right at measurement of power scene
Force measuring machine 3 is detected, and fast and convenient can be judged by production scene condition simulation dynamic environment, the prior art is overcome to use
In do not have method production scene detection judge whether the dynamic property of pull pressure sensor 5 is deteriorated, avoid directly replace and also
Differ and surely solve the problems, such as and cause the time and the cost allowance of part, save time and the labor intensity for removing inspection,
Improve working efficiency.
In the present embodiment, when static shift correction is carried out in step 2, the weight that counterweight 9 is first added on scale pan 4 is zero,
The reading of force measuring machine 3 is returned to zero；Then, 80% standard test weight 9 of range weight is filled it up on scale pan 4, makes force measuring machine
The reading of structure 3 is corresponding with added 9 weight of counterweight, by twice plus counterweight 9 can carry out force measuring machine 3 preliminary adjustment, one
Secondary property is added to 80% counterweight 9 of full scale weight, can detect force measuring machine 3 in upper limited load, the accuracy of detection,
It is quick obtain force measuring machine 3 whether qualified conclusion；Finally, again toward first gradually add on scale pan 4, after gradually decrease counterweight
9, whether 9 value of counterweight observed on scale pan 4 corresponds in a linear relationship point by point with the load value of force measuring machine 3, judges force measuring machine
For structure 3 in different load values, whether detection data is accurate, and adjustment, easy to detect, operation are further carried out to force measuring machine 3
Simply, detection speed is fast, and working efficiency is high, it is ensured that force measuring machine 3 under quiescent conditions whether can steady operation, in next step
Dynamic property detection prepare.
In the present embodiment, after engine at the uniform velocity starts in step 3, first, make force measuring machine without counterweight 9 on scale pan 4
3 measure the load value one suffered in zero load of dynamometer 1, without adding counterweight (9) in scale pan 4, reduce process, reduce work
Make the labor intensity of personnel, the air drag encountered during 1 zero load of dynamometer can also be detected；Then, scale pan 4 fills it up with range weight
80% counterweight 9 of amount, obtains load value two, by 9 value of counterweight plus after load value one with load value two-phase multilevel iudge dynamometry
The dynamic property of the pull pressure sensor 5 of mechanism 3 directly detects the accurate of measurement data of force measuring machine when close to upper limit value
Property, if measurement data of force measuring machine when close to upper limit value there are relatively large deviations, other weight counterweights 9 need not be carried out
Detection, quickly obtain the whether qualified conclusion of force measuring machine 3, easy to detect, detection speed is quick, and working efficiency is high.
In the present embodiment, the rotating speed of engine is its rated engine speed in step 3, and dynamometer 1 is idling conditions,
Under rated engine speed (i.e. rotating speed is 2000rpm/min), the rotating speed of engine is easy to control, operates steadily, and fluctuation is few so that inspection
The error of measured data for surveying sensor dynamic property is small, reduces erroneous judgement probability.
It the above is only the preferred embodiment of the utility model, it should be pointed out that for those skilled in the art,
Under the premise of not departing from the utility model structure, several modifications and improvements can also be made, it is new that these all do not interfere with this practicality
The effect and practical applicability that type is implemented.
Claims (2)
1. a kind of easy detection device of load sensor dynamic property, which is characterized in that including the measurement of power being connect with engine
Device (1) is separately installed with brake arm (8), correction arm (2), the outer end of the brake arm (8) in the both sides of the dynamometer (1)
Force measuring machine (3) equipped with detection correction arm (2) deflection, described correct are hung with a scale pan (4) on arm (2).
2. the easy detection device of a kind of load sensor dynamic property according to claim 1, which is characterized in that described
Force measuring machine (3) include pedestal (6), be vertically arranged with what is connect with the outer end of the brake arm (8) on the pedestal (6)
Pull pressure sensor (5), the both ends of the pull pressure sensor (5) are equipped with to be hinged respectively with the brake arm (8), pedestal (6)
Slip-knot bolt (7)；The force measuring machine (3) further includes the display device being connect with the pull pressure sensor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721308807.7U CN207487975U (en) | 2017-09-30 | 2017-09-30 | A kind of easy detection device of load sensor dynamic property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721308807.7U CN207487975U (en) | 2017-09-30 | 2017-09-30 | A kind of easy detection device of load sensor dynamic property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207487975U true CN207487975U (en) | 2018-06-12 |
Family
ID=62480009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721308807.7U Expired - Fee Related CN207487975U (en) | 2017-09-30 | 2017-09-30 | A kind of easy detection device of load sensor dynamic property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207487975U (en) |
-
2017
- 2017-09-30 CN CN201721308807.7U patent/CN207487975U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20180612 |