CN106932054A - A kind of oil level indicator - Google Patents

A kind of oil level indicator Download PDF

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Publication number
CN106932054A
CN106932054A CN201511022168.3A CN201511022168A CN106932054A CN 106932054 A CN106932054 A CN 106932054A CN 201511022168 A CN201511022168 A CN 201511022168A CN 106932054 A CN106932054 A CN 106932054A
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CN
China
Prior art keywords
sensor
gearbox
oil level
oil
temperature
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.)
Pending
Application number
CN201511022168.3A
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Chinese (zh)
Inventor
O·O·德米尔塔斯
F·舍尔
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to CN201511022168.3A priority Critical patent/CN106932054A/en
Publication of CN106932054A publication Critical patent/CN106932054A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296Acoustic waves

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The invention provides a kind of oil level indicator for train gearbox.Oil level indicator of the invention includes temperature sensor and fuel level sensor.Temperature sensor and fuel level sensor are removably inserted into the gearbox of train, in the case that fuel level sensor measures target temperature when engine is in idling in temperature sensor, can measure the stable oil level data of gearbox.

Description

A kind of oil level indicator
Technical field
The present invention relates to a kind of oil level indicator, the more particularly, to oil level indicator of train gearbox.
Background technology
Gearbox needs enough oil levels can correctly operate, it is therefore desirable to measure oil level Controlled otherwise shorten the life-span of gearbox in proper range and gearbox may be caused Job failure.Due to the structure of gearbox, oil level may be with different rotating speed and oil temperature Acute variation.Accordingly, it would be desirable under specified oil temperature and the rotating speed (for example, idling) specified Correct oil level can just be measured.The oil level of gearbox is measured usually using dipstick.In passenger car In, when engine is operated, hood can be opened, dipstick reading is read to obtain change now Fast fuel level in tank.And for train gearbox, dipstick is only capable of being used when train engine is inoperative, Therefore the gearbox oil level that this mode is measured is inaccurate.When train engine is operated, for Safety grounds, typically forbid running gear of the personnel in train transmission system, therefore only adopt With dipstick, it is impossible to measure the oil level of train gearbox when engine is operated.Particularly with recent years Widely used high-speed railway, the complex structure of its gearbox, in high-speed railway high-speed cruising, If participating in the low on fuel of the component lubrications such as bearing, easily cause part and overheat and lose part Effect, influences the up-time efficiency of high-speed railway.
The need for accurately oil level is measured for train gearbox, the present invention has been made.
The content of the invention
The invention provides a kind of oil level indicator for train gearbox.Oil level of the invention Meter includes temperature sensor and fuel level sensor.Temperature sensor and fuel level sensor are removedly The gearbox of train is inserted, fuel level sensor is in idling and is measured in temperature sensor in engine In the case of target temperature, the stable oil level data of gearbox can be measured.
Brief description of the drawings
Fig. 1 shows a kind of schematic diagram of oil level indicator of the invention.
Fig. 2 shows the schematic diagram at conventional trains speed change fuel tank filler position.
Fig. 3 is the flow chart of the exemplary method step for using oil level indicator of the invention.
Specific embodiment
Fig. 1 shows a kind of oil level indicator 1 for train gearbox of the invention.Oil level Meter 1 includes fuel level sensor 2 and temperature sensor 3.In certain embodiments, oil level sensing Device 2 is ultrasonic wave fuel level sensor, so that its sensing element can be from the spacing of fuel head one The oil level of gearbox is measured from place, it will be understood by those skilled in the art that also may be used Using other range sensors.In certain embodiments, temperature sensor 3 is contact temperature Sensor, it will be understood by those skilled in the art that can also use contactless temperature Degree sensor.In one particular embodiment of the present invention, temperature sensor 3 is positioned in oil The bottom of position meter, so that its lower end can be dipped into gear box oil measures oil temperature, and TEMP The upper end of device 3 is fixed in sensor pipe sleeve 4, while the upper end of fuel level sensor 2 is also fixed in Sensor pipe sleeve 4, but its lower end is higher than the lower end of temperature sensor 3, to cause in TEMP When the lower end of device 3 is dipped into oil, the lower end of fuel level sensor 2 is maintained at more than pasta.
In certain embodiments, data processing equipment 5 and fuel level sensor 2 and temperature sensor 3 wired or wireless long-range connections are being communicated.In certain embodiments, display or Data processing equipment is connected by sensor sleeve 4 with fuel level sensor 2 and temperature sensor 3. Connection herein is represented by dotted lines, to show that such connection can be wired or wireless. When data processing equipment is display, the reading measured by the display sensor of data processing equipment 5 Number.So as to the oil mass in gearbox can be adjusted based on sensor reading.Data processing is filled It is long-range for fuel level sensor 2 and temperature sensor 3 to put 5 and be described as in the present invention, To ensure that operating personnel can be at enough away from train gearbox when oil level, oil temperature data is measured Remote home checks display reading.It will be appreciated by those skilled in the art that adopting During with other types of data processing equipment, can be adaptive based on oil level and oil temperature measured by sensor The oil mass in gearbox should be adjusted, therefore such data processing equipment also may be mounted to that speed change Any position near case.
Fig. 2 shows a kind of partial schematic diagram at conventional trains speed change fuel tank filler position.As schemed Shown in 2, train gearbox 6 is provided with oil filler 7.Can be via oil filler 7 by oil level indicator 1 Bottom (i.e. fuel level sensor 2 and temperature sensor 3) insertion gearbox.But this area Technical staff be appreciated that can also via it is in addition to oil filler 7, on gearbox other Special or general opening insertion oil level indicator 1.
In some embodiments of the invention, on train gearbox, hollow oil fuel tube 8 is passed through It is installed on train gearbox by oil filler 7, and dipstick 9 is inserted into oil fuel tube 8.When When measuring temperature of gear-shifting box and oil level using oil level indicator of the invention, by dipstick 9 from oil fuel tube 8 Middle extraction, and oil level indicator 1 is inserted into oil fuel tube 8, so as to make the bottom of oil level indicator 1 (i.e. oily Level sensor 2 and temperature sensor 3) via in the insertion gearbox of oil filler 7.
In other embodiments of the invention, may be noted without placement on speed change fuel tank filler 7 Oil pipe 8, and dipstick 9 is plugged directly into oil filler 7.Therefore oil level indicator of the invention is being used During measurement temperature of gear-shifting box and oil level, dipstick 9 is extracted from oil filler 7, and by oil level indicator 1 bottom (i.e. fuel level sensor 2 and temperature sensor 3) is inserted directly into oil filler 7.
And in other embodiment of the invention, without slotting in the oil filler/oil fuel tube of gearbox Enter dipstick, therefore only need the bottom of oil level indicator 1 (i.e. fuel level sensor 2 and temperature sensor 3) in insertion oil filler/oil fuel tube.
In the present invention, fuel volume adjusting can be via the oil filler 7 of oil fuel tube 8/ or gearbox fuel outlet (not shown) is carried out, and needs to extract oil level indicator 1 in oiling.But the technology of this area Personnel be appreciated that can via other on gearbox it is special or it is general opening come to gearbox note Oil, and oil level indicator 1 need not be extracted.
Optionally, before oil level is measured using oil level indicator of the invention, draw in train first Hold up when not starting, it is ensured that the oil level of train gearbox reaches " stopping " position of dipstick 9.Then exist Transmission neutral starts the engine and makes engine with the idle running very first time (for example, 2 minutes), To cause that oil can be full of the hydraulic system of gearbox.Then engine is closed and dipstick 9 is by from oiling Extracted in mouth 7.
Fig. 3 shows using oil level indicator of the invention 1 to measure the exemplary method step of oil level. In step 302, by the bottom of oil level indicator of the invention 1 (i.e. fuel level sensor 2 and temperature Sensor 3) insertion speed change fuel tank filler 7.In step 304, start in transmission neutral Engine simultaneously makes its idle running.Within step 306, when the temperature that temperature sensor 3 is measured reaches During to the first lower temperature (for example, 30 degrees Celsius to 50 degrees Celsius), oil level sensing is checked Whether the reading display gearbox oil level of device 2 is wider in can start gearbox heating function one Oil level scope.If being not in the oil level scope wider, in step 308, speed change is adjusted Case oil mass.Optionally, repeat step 306-308 is until oil level is in the oil level model wider Enclose.In various embodiments of the present invention, the oil level scope wider can be based on different gearboxes Change with fuel level sensor 2.In the step 310, when gearbox possesses heating function, Heating gearbox.In certain embodiments, reverse gear is in by making gearbox, and makes gearbox Turbine wheel shaft (not shown) is lockable, so as to make engine relative to torque-converters reverse operation.Work as change After fast case is fully engaged, engine speed a to fixed speed higher can be improved and added with lifting gearbox Thermal velocity.In step 312, when the temperature of gear-shifting box measured by temperature sensor 3 reaches mesh During mark temperature, close heating function (returning to transmission neutral) and keep engine higher with this Fixed speed operates the second time (for example, 5 minutes) to cause each part (example in gearbox Such as, clutch and gear train) also it is completely warmed with gear box oil.Of the invention excellent Select in embodiment, target temperature is 85 degrees Celsius, this temperature is gearbox ideal normal work Temperature.In other embodiments of the invention, for ease of operation, target temperature is 60-90 Arbitrary temp in degree Celsius range.In a step 314, engine idle is made to operate for the 3rd time After (for example, 2 minutes) are to cause that the oil level in gearbox is steady, fuel level sensor 2 is detected Whether measured oil level is in the range of first.First scope is to be gearbox in normal work The ideal range of oil level under state, and more above-mentioned oil level narrow range wider.If beyond this first Scope, then in step 316, adjust gear shifting box fuel, and repeat step 314-316, directly To measured oil level at this in the range of first.In step 318, close engine and remove oil level Meter 1.If gearbox employs dipstick originally, dipstick is reinstalled.
It is appreciated that the above described duration of runs is only example, the technology of this area Personnel are appreciated that can adjust the duration of runs according to actually used situation.
The technology contents and technical characterstic of specific embodiment of the invention are disclosed above, but can To understand, can principle of the invention, to various features disclosed above and not clear and definite herein The combination of the feature for showing makes various changes and improves, without departing from protection scope of the present invention. The description of above-described embodiment is exemplary and not restrictive, protection scope of the present invention by Claim is determined.

Claims (21)

1. a kind of oil level indicator for gearbox, including:
Temperature sensor;And
Fuel level sensor,
The temperature sensor and fuel level sensor are removably inserted the gearbox of train.
2. oil level indicator as claimed in claim 1, it is characterised in that the sensor is by peace Put the oil filler on the gearbox and be inserted into the gearbox.
3. oil level indicator as claimed in claim 2, it is characterised in that the sensor by with The attached oil fuel tube of the oil filler is inserted into the gearbox.
4. oil level indicator as claimed in claim 1, it is characterised in that engine be in idling, In the case where the temperature sensor measures target temperature, the fuel level sensor measurement is described The oil level data of gearbox.
5. oil level indicator as claimed in claim 1, it is characterised in that by the gearbox in institute The oil level stated under target temperature and the engine idle is adjusted in the range of first.
6. oil level indicator as claimed in claim 5, it is characterised in that added in the gearbox Before heat arrives the target temperature, when the temperature measured by the temperature sensor is first During lower temperature, it is wider that the gearbox oil level that will be measured by the fuel level sensor is adjusted to second In the range of.
7. oil level indicator as claimed in claim 1, it is characterised in that the model of the target temperature Enclose is 60 degrees Celsius to 90 degrees Celsius.
8. oil level indicator as claimed in claim 1, it is characterised in that the target temperature is 85 degrees Celsius.
9. oil level indicator as claimed in claim 1, it is characterised in that with the temperature sensor Shown with the display of the wired or wireless telecommunication of the fuel level sensor and passed by the temperature The data that sensor and the fuel level sensor are measured.
10. oil level indicator as claimed in claim 1, it is characterised in that with the TEMP The data processing equipment of device and the fuel level sensor wired or wireless communication is based on by the temperature Change the oil level data adaptive that degree sensor and the fuel level sensor are measured.
11. oil level indicators as claimed in claim 1, it is characterised in that the fuel level sensor It is ultrasonic sensor.
A kind of 12. methods of the oil level that train gearbox is measured using oil level indicator, including:
The temperature sensor of the oil level indicator and fuel level sensor are inserted into the gearbox;
With idle running engine;
When the gearbox is heated to the target temperature that the temperature sensor is measured, use The fuel level sensor measures the oil level of the gearbox.
13. methods as claimed in claim 12, it is characterised in that the sensor passes through institute State the oil filler disposed on gearbox and be inserted into the gearbox.
14. methods as claimed in claim 13, it is characterised in that the sensor by with The attached oil fuel tube of the oil filler is inserted into the gearbox.
15. methods as claimed in claim 12, it is characterised in that also include:Will be described The gearbox measured by the fuel level sensor under target temperature and the engine idle Oil level is adjusted to the first scope.
16. methods as claimed in claim 12, it is characterised in that methods described is additionally included in Before the gearbox is heated to the target temperature:
When the temperature measured by the temperature sensor is drawn for the first lower temperature and in described Hold up under idling, the oil level of the gearbox measured by the fuel level sensor is adjusted to second In relative broad range.
17. methods as claimed in claim 12, it is characterised in that the model of the target temperature Enclose is 60 degrees Celsius to 90 degrees Celsius.
18. methods as claimed in claim 12, it is characterised in that the target temperature is 85 degrees Celsius.
19. methods as claimed in claim 12, it is characterised in that by the temperature sensor The data measured with the oil level sensor are displayed on and the temperature sensor and the oil level On the display of the long-range wired or wireless communication of sensor.
20. methods as claimed in claim 15, it is characterised in that the oil level be by with institute State the data processing equipment of temperature sensor and the fuel level sensor wired or wireless communication from Adapt to adjustment.
21. methods as claimed in claim 12, it is characterised in that the fuel level sensor is Ultrasonic sensor.
CN201511022168.3A 2015-12-30 2015-12-30 A kind of oil level indicator Pending CN106932054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201511022168.3A CN106932054A (en) 2015-12-30 2015-12-30 A kind of oil level indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201511022168.3A CN106932054A (en) 2015-12-30 2015-12-30 A kind of oil level indicator

Publications (1)

Publication Number Publication Date
CN106932054A true CN106932054A (en) 2017-07-07

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CN201511022168.3A Pending CN106932054A (en) 2015-12-30 2015-12-30 A kind of oil level indicator

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2867307Y (en) * 2006-01-24 2007-02-07 宝山钢铁股份有限公司 Multifunction liquid level detector
CN1932253A (en) * 2005-09-15 2007-03-21 本田技研工业株式会社 Oil level gauge
FR2901877A1 (en) * 2006-06-02 2007-12-07 Sc2N Sa Liquid e.g. oil, level and temperature sensor for e.g. motor vehicle`s gearbox, has connecting wires to connect thermistor and probe to power supply and utilizing unit, and common connecting wire to connect thermistor and probe to ground
DE102010063213A1 (en) * 2010-12-16 2012-06-21 Zf Friedrichshafen Ag Dipstick used for determination of oil level in component at powertrain of motor car, has dipstick tip whose front end is equipped with convex surface for grasping of dipstick
CN103245390A (en) * 2012-02-10 2013-08-14 赫拉胡克公司 Method used for analyzing oil level of vehicle
CN205483182U (en) * 2015-12-30 2016-08-17 Zf腓特烈斯哈芬股份公司 Oil level gauge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1932253A (en) * 2005-09-15 2007-03-21 本田技研工业株式会社 Oil level gauge
CN2867307Y (en) * 2006-01-24 2007-02-07 宝山钢铁股份有限公司 Multifunction liquid level detector
FR2901877A1 (en) * 2006-06-02 2007-12-07 Sc2N Sa Liquid e.g. oil, level and temperature sensor for e.g. motor vehicle`s gearbox, has connecting wires to connect thermistor and probe to power supply and utilizing unit, and common connecting wire to connect thermistor and probe to ground
DE102010063213A1 (en) * 2010-12-16 2012-06-21 Zf Friedrichshafen Ag Dipstick used for determination of oil level in component at powertrain of motor car, has dipstick tip whose front end is equipped with convex surface for grasping of dipstick
CN103245390A (en) * 2012-02-10 2013-08-14 赫拉胡克公司 Method used for analyzing oil level of vehicle
CN205483182U (en) * 2015-12-30 2016-08-17 Zf腓特烈斯哈芬股份公司 Oil level gauge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
迪辛格: "《民用涡扇发动机系统》", 30 April 2015, 航空工业出版社 *

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