CN111706541A - Method for measuring torque of cooling fan of tracked vehicle - Google Patents
Method for measuring torque of cooling fan of tracked vehicle Download PDFInfo
- Publication number
- CN111706541A CN111706541A CN202010628565.XA CN202010628565A CN111706541A CN 111706541 A CN111706541 A CN 111706541A CN 202010628565 A CN202010628565 A CN 202010628565A CN 111706541 A CN111706541 A CN 111706541A
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- China
- Prior art keywords
- fan
- torque
- shaft
- cooling fan
- vehicle
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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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
Abstract
The invention belongs to the technical field of military tracked vehicles and various tracked armored vehicles, and particularly relates to a method for measuring torque of a cooling fan of a tracked vehicle. Compared with the prior art, the invention provides a reliable test method aiming at the structural characteristics and the working environment of high compactness and high rotation speed of the rotating shaft of the fan, and the fan torque sensor and the test system realize high integration of the sensor, the test circuit and the tested component through miniaturization and micro-power consumption design, and can conveniently and quickly measure the torque of the cooling fan. For the overall design of a crawler-type military vehicle and an engineering vehicle, the determination of the torque of the cooling fan under different working conditions has important significance, and the power transmitted to the fan can be calculated through the determination of the torque of the cooling fan, so that the overall designer of the vehicle can more accurately select the type of a power device.
Description
Technical Field
The invention belongs to the technical field of military tracked vehicles and various tracked armored vehicles, and particularly relates to a method for measuring torque of a cooling fan of a tracked vehicle.
Background
The space near the rotating shaft of the fan of the tracked vehicle is narrow and high in temperature, and the rotating shaft is in continuous motion, so that the measurement and the accuracy measurement are difficult.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to provide a method for measuring the torque of a cooling fan of a crawler-type vehicle requires a value of the torque of the cooling fan which can be accurately measured.
(II) technical scheme
In order to solve the technical problem, the invention provides a method for measuring torque of a cooling fan of a tracked vehicle, which comprises the following steps:
step 1: taking out the measurable shaft of the rotating shaft of the cooling fan;
step 2: mounting the rotor unit on the measurable shaft, debugging signals, and mounting the measurable shaft back to the original position;
and step 3: driving the tracked vehicle to a field to be tested, carrying out tests under different working conditions, and recording the working conditions at the moment, vehicle speed data, road condition data and gear data of the gearbox under the working conditions;
and 4, step 4: receiving fan torque data transmitted from the rotor unit in real time through the static unit and storing records;
and 5: calculating the fan power according to the obtained fan torque data and the fan rotating speed data uploaded by the gearbox control box:
P＝Tfωf
wherein, P is the power of the input shaft of the fan;
Tf-fan input shaft torque;
ωf-fan input shaft speed.
When the rotor unit is out of power, the battery can be charged through a reserved usb port by a power supply such as a charger.
Wherein the rotor unit includes: the device comprises a torque strain gauge, a sensor conditioning circuit, a reference power supply processor, a CPU, an electric energy receiver and a wireless signal transmitter.
Wherein the stationary unit comprises: the device comprises a controller, an electric energy transmitter, a signal conditioning unit, a reference power supply processor, a CPU and a wireless signal receiver.
The static unit is fixed on a vehicle during field test, and is placed at a safe position during bench test.
Wherein the distance between the static unit and the rotor unit does not exceed 5 meters and is free from shielding signal interference.
Wherein the step 2 comprises: the measurable shaft of the cooling fan is taken out, the measurable shaft surface is ground and polished, the resistance strain gauge is adhered to the strain shaft by using a paster adhesive according to a paster process, a signal is led out from the resistance strain gauge to the transition plate, a sensor is tested, zero sensitivity compensation is carried out on a Wheatstone bridge of the strain shaft, temperature compensation is carried out on the Wheatstone bridge of the strain shaft, mechanical fatigue is carried out on the strain shaft, the sensor signal is amplified secondarily to be a standard signal, a wireless communication part is assembled, a forming module of the wireless sensor is packaged in a shell, a battery provides a power supply when the wireless sensor works to form a wireless sensor network transmitting node, and the measurable shaft of the cooling fan is installed back to the original position after all the devices are fixed.
In the step 1, the measurable shaft of the rotating shaft of the cooling fan is taken out, and then basic processing is carried out, and plane grinding and polishing are carried out.
(III) advantageous effects
Compared with the prior art, the invention provides a reliable test method aiming at the structural characteristics and the working environment of high compactness and high rotation speed of the rotating shaft of the fan, and the fan torque sensor and the test system realize high integration of the sensor, the test circuit and the tested component through miniaturization and micro-power consumption design, and can conveniently and quickly measure the torque of the cooling fan. For the overall design of a crawler-type military vehicle and an engineering vehicle, the determination of the torque of the cooling fan under different working conditions has important significance, and the power transmitted to the fan can be calculated through the determination of the torque of the cooling fan, so that the overall designer of the vehicle can more accurately select the type of a power device.
Drawings
FIG. 1 is a schematic view of the operation of the acquisition device;
FIG. 2 is a schematic view of a rotor unit installation;
fig. 3 is a schematic flow diagram.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
In order to solve the problems of the prior art, the invention provides a method for measuring the torque of a cooling fan of a tracked vehicle, which can be used for testing under various working conditions of a rack and the field as shown in figures 1-3, and can obtain the torque of the fan generated under different working conditions in real time through wireless signal acquisition; the method comprises the following steps:
step 1: taking out the measurable shaft of the rotating shaft of the cooling fan;
step 2: mounting the rotor unit on the measurable shaft, debugging signals, and mounting the measurable shaft back to the original position;
and step 3: driving the tracked vehicle to a field to be tested, carrying out tests under different working conditions, and recording the working conditions at the moment, vehicle speed data, road condition data and gear data of the gearbox under the working conditions;
and 4, step 4: receiving fan torque data transmitted from the rotor unit in real time through the static unit and storing records;
and 5: calculating the fan power according to the obtained fan torque data and the fan rotating speed data uploaded by the gearbox control box:
P＝Tfωf
wherein, P is the power of the input shaft of the fan;
Tf-fan input shaft torque;
ωf-fan input shaft speed.
When the rotor unit is out of power, the battery can be charged through a reserved usb port by a power supply such as a charger.
Wherein the rotor unit includes: the device comprises a torque strain gauge, a sensor conditioning circuit, a reference power supply processor, a CPU, an electric energy receiver and a wireless signal transmitter.
Wherein the stationary unit comprises: the device comprises a controller, an electric energy transmitter, a signal conditioning unit, a reference power supply processor, a CPU and a wireless signal receiver.
The static unit is fixed on a vehicle during field test, and is placed at a safe position during bench test.
Wherein the distance between the static unit and the rotor unit does not exceed 5 meters and is free from shielding signal interference.
Wherein the step 2 comprises: the measurable shaft of the cooling fan is taken out, the measurable shaft surface is ground and polished, the resistance strain gauge is adhered to the strain shaft by using a paster adhesive according to a paster process, a signal is led out from the resistance strain gauge to the transition plate, a sensor is tested, zero sensitivity compensation is carried out on a Wheatstone bridge of the strain shaft, temperature compensation is carried out on the Wheatstone bridge of the strain shaft, mechanical fatigue is carried out on the strain shaft, the sensor signal is amplified secondarily to be a standard signal, a wireless communication part is assembled, a forming module of the wireless sensor is packaged in a shell, a battery provides a power supply when the wireless sensor works to form a wireless sensor network transmitting node, and the measurable shaft of the cooling fan is installed back to the original position after all the devices are fixed.
In the step 1, the measurable shaft of the rotating shaft of the cooling fan is taken out, and then basic processing is carried out, and plane grinding and polishing are carried out.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A method of determining a torque of a radiator fan of a track laying vehicle, the method comprising:
step 1: taking out the measurable shaft of the rotating shaft of the cooling fan;
step 2: mounting the rotor unit on the measurable shaft, debugging signals, and mounting the measurable shaft back to the original position;
and step 3: driving the tracked vehicle to a field to be tested, carrying out tests under different working conditions, and recording the working conditions at the moment, vehicle speed data, road condition data and gear data of the gearbox under the working conditions;
and 4, step 4: receiving fan torque data transmitted from the rotor unit in real time through the static unit and storing records;
and 5: calculating the fan power according to the obtained fan torque data and the fan rotating speed data uploaded by the gearbox control box:
P＝Tfωf
wherein, P is the power of the input shaft of the fan;
Tf-fan input shaft torque;
ωf-fan input shaft speed.
2. A method for determining the torque of a radiator fan of a track laying vehicle according to claim 1, wherein when the rotor unit is de-energized, its battery can be recharged via its reserved usb port by a power source such as a charger.
3. A method of determining torque for a radiator fan of a track laying vehicle according to claim 1, wherein said rotor unit comprises: the device comprises a torque strain gauge, a sensor conditioning circuit, a reference power supply processor, a CPU, an electric energy receiver and a wireless signal transmitter.
4. A method of determining torque for a radiator fan of a track laying vehicle according to claim 1, wherein said stationary unit comprises: the device comprises a controller, an electric energy transmitter, a signal conditioning unit, a reference power supply processor, a CPU and a wireless signal receiver.
5. The method of claim 1, wherein the stationary unit is mounted to the vehicle for field testing and the skid-mounted unit is placed in a safe position for bench testing.
6. The method of determining torque for a radiator fan of a track laying vehicle of claim 1, wherein the stationary unit and rotor unit are spaced no more than 5 meters apart and are free of a shielding signal.
7. A method of determining torque for a radiator fan of a track laying vehicle as set forth in claim 1, wherein said step 2 comprises: the measurable shaft of the cooling fan is taken out, the measurable shaft surface is ground and polished, the resistance strain gauge is adhered to the strain shaft by using a paster adhesive according to a paster process, a signal is led out from the resistance strain gauge to the transition plate, a sensor is tested, zero sensitivity compensation is carried out on a Wheatstone bridge of the strain shaft, temperature compensation is carried out on the Wheatstone bridge of the strain shaft, mechanical fatigue is carried out on the strain shaft, the sensor signal is amplified secondarily to be a standard signal, a wireless communication part is assembled, a forming module of the wireless sensor is packaged in a shell, a battery provides a power supply when the wireless sensor works to form a wireless sensor network transmitting node, and the measurable shaft of the cooling fan is installed back to the original position after all the devices are fixed.
8. The method for measuring torque of a radiator fan of a track-type vehicle according to claim 1, wherein in the step 1, after a measurable shaft of a rotating shaft of the radiator fan is taken out, a basic process is performed, and plane grinding and polishing are performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010628565.XA CN111706541A (en) | 2020-07-01 | 2020-07-01 | Method for measuring torque of cooling fan of tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010628565.XA CN111706541A (en) | 2020-07-01 | 2020-07-01 | Method for measuring torque of cooling fan of tracked vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN111706541A true CN111706541A (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010628565.XA Pending CN111706541A (en) | 2020-07-01 | 2020-07-01 | Method for measuring torque of cooling fan of tracked vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195539A (en) * | 2020-10-22 | 2021-01-08 | 中原工学院 | Cotton spinning comber cylinder combing force testing arrangement |
| CN113640663A (en) * | 2021-07-27 | 2021-11-12 | 江铃汽车股份有限公司 | Whole vehicle generator efficiency testing method based on power analyzer |
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| CN1397789A (en) * | 2002-07-22 | 2003-02-19 | 华南理工大学 | System and method for testing running condition and drive power of car |
| DE102007047500A1 (en) * | 2007-10-04 | 2009-04-09 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Method and device for in-situ determination of the operating states of working machines |
| CN202433134U (en) * | 2011-12-19 | 2012-09-12 | 浙江海洋学院 | Ship shaft power measuring device |
| CN107782568A (en) * | 2017-10-23 | 2018-03-09 | 中国北方车辆研究所 | A kind of method of testing of crawler travel device power attenuation |
| CN109000922A (en) * | 2018-06-11 | 2018-12-14 | 中国北方车辆研究所 | Comprehensive actuator endurance bench test method based on road test |
| CN109489877A (en) * | 2018-12-12 | 2019-03-19 | 中国北方车辆研究所 | A kind of road test vehicle comprehensive actuator drive chain power flow test method |
| CN109883589A (en) * | 2019-03-15 | 2019-06-14 | 中国汽车技术研究中心有限公司 | A kind of new-energy automobile drive shaft armature-moment-testing device and method |
-
2020
- 2020-07-01 CN CN202010628565.XA patent/CN111706541A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1397789A (en) * | 2002-07-22 | 2003-02-19 | 华南理工大学 | System and method for testing running condition and drive power of car |
| DE102007047500A1 (en) * | 2007-10-04 | 2009-04-09 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Method and device for in-situ determination of the operating states of working machines |
| CN202433134U (en) * | 2011-12-19 | 2012-09-12 | 浙江海洋学院 | Ship shaft power measuring device |
| CN107782568A (en) * | 2017-10-23 | 2018-03-09 | 中国北方车辆研究所 | A kind of method of testing of crawler travel device power attenuation |
| CN109000922A (en) * | 2018-06-11 | 2018-12-14 | 中国北方车辆研究所 | Comprehensive actuator endurance bench test method based on road test |
| CN109489877A (en) * | 2018-12-12 | 2019-03-19 | 中国北方车辆研究所 | A kind of road test vehicle comprehensive actuator drive chain power flow test method |
| CN109883589A (en) * | 2019-03-15 | 2019-06-14 | 中国汽车技术研究中心有限公司 | A kind of new-energy automobile drive shaft armature-moment-testing device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195539A (en) * | 2020-10-22 | 2021-01-08 | 中原工学院 | Cotton spinning comber cylinder combing force testing arrangement |
| CN113640663A (en) * | 2021-07-27 | 2021-11-12 | 江铃汽车股份有限公司 | Whole vehicle generator efficiency testing method based on power analyzer |
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Application publication date: 20200925 |