CN201589702U - Fault diagnosis and detection system for vehicle gearbox - Google Patents
Fault diagnosis and detection system for vehicle gearbox Download PDFInfo
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- CN201589702U CN201589702U CN2010201019093U CN201020101909U CN201589702U CN 201589702 U CN201589702 U CN 201589702U CN 2010201019093 U CN2010201019093 U CN 2010201019093U CN 201020101909 U CN201020101909 U CN 201020101909U CN 201589702 U CN201589702 U CN 201589702U
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Abstract
The utility model relates to a fault diagnosis and detection system for a vehicle gearbox, which comprises a fixed shaft type gearbox, an input shaft, first shaft, second shaft and third shaft speed-measuring gear in the gearbox transmits the speed-measuring gear signal to a signal conditioning box by a magnetic-electric sensor, a lubricating system in the gearbox is connected with a temperature sensor and a pressure-measuring oil pipe respectively, a shift clutch, a turning system, a hydrodynamic torque converter and a locking clutch in the gearbox introduce the pressure oil into a pressure-measuring valve plate by the pressure-measuring oil pipe respectively, a pressure-measuring joint connected with the pressure sensor is arranged at the top of the pressure-measuring valve plate, the pressure sensor inputs the collected oil pressure signal into the signal conditioning box, the signal is transmitted from the output end of the signal conditioning box to a fault diagnosis module by an analog to digital converter module and a data acquisition module, and the signal conditioning box is powered on by a lithium power supply. According to the utility model, an isolated module in the signal conditioning box adopts the integrated circuit design, thus the volume of the conditioning box is reduced, the weight of the system is reduced and the detecting system is portable. The fault diagnosis and detection system can be widely applied in the fault diagnosis of various endless-track vehicle wet type clutch gearbox.
Description
Technical field
The utility model relates to a kind of fault diagnosis detection system, particularly about a kind of vehicle speed variation box fault diagnosis detection system that is used for endless-track vehicle wet clutch fixed shaft type.
Background technology
At present, integrating the wet clutch fixed axle gearbox that turns to the straight function is used widely at numerous endless-track vehicles, this wheel box is the organic synthesis of technology such as mechanical, electrical, liquid, have that hydrodynamic drive, hydraulic stepless turn to, technical characterstic such as power shifting and fluid drive, such wheel box has the handling characteristics of high power density, high compactedness and high reliability, its telotism, technical merit advanced person.When the wet clutch wheel box significantly improves the endless-track vehicle performance, many urgent problems have also been brought, wherein comparatively outstanding is exactly how the wheel box running status to be tested fast and controlled, good riding quality when guaranteeing its operate as normal, timely maintenance when breaking down sign and fault diagnosis and maintenance quickly and accurately when breaking down, these problems are for the overall performance of wheel box, life-span, can reliabilities etc. have material impact, in time grasp running status and be directly connected to the wheel box integrity in use and the performance of the various functions of vehicle.Therefore, research endless-track vehicle wheel box fault detection method, exploitation bicycle-mounted portable formula detection system is significant.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of easy to carry, simple to operate, scope of application extensively and the vehicle speed variation box fault diagnosis detection system that can online in real time detects.
For achieving the above object, the utility model is taked following technical scheme: a kind of vehicle speed variation box fault diagnosis detection system, it is characterized in that: it comprises that one contains the fixed axle gearbox of a plurality of wet clutches, and input shaft speed measuring gear, a measure speed gears, two measure speed gearses and three measure speed gearses are sent into the measure speed gears signal in one signal process box in the described wheel box behind magnetoelectric transducer; Lubricating system in the described wheel box is connected with a pressure measurement oil pipe with a temperature sensor respectively, and gear shift sleeve, steering, fluid torque-converter and lockup clutch in the described wheel box are introduced one through a pressure measurement oil pipe respectively with pressure oil and are fixed in the pressure measurement valve plate at described wheel box top, described pressure measurement valve plate top is provided with the pressure measuring tie-in that is used to connect described pressure transducer, and described pressure transducer is imported the fuel injection pressure signal that collects in the described signal process box; The output terminal of described signal process box is sent into signal in one fault diagnosis module behind an analog-to-digital conversion module and a data acquisition module, and described signal process box is powered by a lithium power supply.
Be provided with a power-supply filter, a power distribution module, two low-pass filters, a frequency in the described signal process box and press modular converter, two voltage isolation modules and a resistance/voltage transformation module; Described power filtering module is imported the electric weight of described lithium power supply in the described power distribution module with after the output terminal of lithium power supply is connected; Described magnetoelectric transducer and pressure transducer respectively behind a described low-pass filter, are imported detected signal respectively described frequency and are pressed in a modular converter and the described voltage isolation module; Described temperature sensor behind described resistance/voltage transformation module, is imported detected signal in another described voltage isolation module, and all signals are gathered by described modulus acquisition module.
Described lithium power supply adopts the portable lithium power supply of 24V.
Be connected by rapid-acting coupling respectively between each described pressure measurement oil pipe and described wheel box and the pressure measurement valve plate.
Described analog-to-digital conversion module adopts the single channel flank speed to reach the high speed PXI analog-to-digital conversion card of 1M.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the utility model is because signal process box internal insulation module adopts the integrated circuit design, it is long-pending to have dwindled the conditioning casing, alleviated system weight, A/D conversion module, signal acquisition module and fault diagnosis module adopt integrated design and unified encapsulation, have therefore improved the portability of detection system.2, the utility model does not need external vehicle power supply owing to adopt stable lithium power supply to power separately in the real vehicle road test process, has therefore reduced the interference of power supply to acquired signal, has improved the accuracy of signal quality and diagnosis.3, the utility model is owing to adopt wheel box hydraulic oil to transfer into the pressure measurement valve plate through the flexible high pressure oil pipe, pressure tap place setting pressure sensor on the pressure measurement valve plate, switching oil pipe and pressure measurement valve plate play the pressure buffer effect, thereby compression shock is to the damage of sensor when having reduced gear-change operation, has improved reliability and serviceable life that pressure sensor signal is gathered.4, therefore the utility model has guaranteed the signal conversion process real-time because the A/D modular converter adopts the single channel flank speed to reach the high speed PXI analog-to-digital conversion card of 1M.5, the utility model is because data acquisition module adopts the portable PXI cabinet and the input of 24V direct supply of more stable and stronger, power supply is provided by signal process box, has therefore further improved the intuitive that system's navigability, result show, the reliability and the portability of system.The utility model can be widely used in the various endless-track vehicle wet clutch wheel box fault diagnosises.
Description of drawings
Fig. 1 is a fault diagnosis system structural representation of the present utility model,
Fig. 2 is a signal process box structural representation of the present utility model,
Fig. 3 is system works flow process figure of the present utility model,
Fig. 4 is a Troubleshooting Flowchart of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model comprises that one contains the fixed axle gearbox 1 of a plurality of wet clutches, and input shaft speed measuring gear 2 in the wheel box 1, measure speed gears 3, two measure speed gearses 4 and three measure speed gearses 5 are sent into the measure speed gears signal in one signal process box 7 behind magnetoelectric transducer 6; Lubricating system 8 in the wheel box 1 is connected with a pressure measurement oil pipe 10 with a temperature sensor 9 respectively, and the gear shift sleeve device 11 in the wheel box 1, steering 12, fluid torque-converter 13 and lockup clutch 14 with pressure oil respectively through a pressure measurement oil pipe 10 introduce one by the pressure measurement valve plate 15 that is bolted to wheel box 1 top in, pressure measurement valve plate 15 tops are provided with 15 pressure measuring tie-ins (figure does not mark) that are used for connecting pressure transducer 16, pressure measurement oil pipe 10 and pressure measurement valve plate 15 can play the pressure buffer effect, thereby compression shock is to the damage of each sensor, the dependability and the serviceable life of having improved each sensor when reducing gear-change operation.Pressure transducer 16 is with in the fuel injection pressure signal input signal conditioning case 7 that collects.All the sensors all passes through detected signal in the cable input signal conditioning case 7, nurse one's health and remove undesired signal, signal after the conditioning by the output terminal of signal process box 7 behind an A/D conversion module (analog/digital conversion module) 17 and one data acquisition module 18, send in the fault diagnosis module 19 and carry out fault diagnosis, diagnostic result prints output by an output module 20.Wherein, signal process box 7 is by a lithium power supply 21 power supplies.
In the foregoing description, lithium power supply 21 adopts the portable lithium power supply of 24V, and the capacity of the portable lithium power supply 21 of 24V can guarantee that whole system stable operation is more than 3 hours.
As shown in Figure 2, be provided with a power-supply filter 22, power distribution module 23, two low-pass filters 24, frequency in the signal process box 7 of the present utility model and press modular converter 25, two voltage isolation modules 26 and resistance/voltage transformation modules 27.Power filtering module 22 is connected with the output terminal of portable lithium power supply 21, behind the 24V voltage filter clutter with 21 supplies of lithium power supply, in the input power distribution module 23, assigned the power supply of each sensor, signal process box 7, A/D acquisition module 17 and fault diagnosis module 19 by power distribution module 23.Magnetoelectric transducer 6 and pressure transducer 16 with detected signal respectively behind a low-pass filter 24, filtering high frequency clutter, input is pressed in a modular converter 25 and the voltage isolation module 26 frequently respectively, respectively signal is finished frequency and is isolated the output of removal back to the conversion and the undesired signal of magnitude of voltage; Temperature sensor 9 behind resistance/voltage transformation module 27, is imported another voltage isolation module 26 back outputs with detected signal, and all signals are gathered by A/D acquisition module 17.
In the foregoing description, be connected by rapid-acting coupling respectively between pressure measurement oil pipe 10 and wheel box 1 and the pressure measurement valve plate 15, pressure measurement oil pipe 10 adopts the high-pressure oil pipe of the highest anti-50Mp.
In the foregoing description, the gear shift sleeve 11 of wheel box inside is respectively six wet type gear shift sleeves that are distributed on, two and three.
In the foregoing description, A/D modular converter 17 adopts the single channel flank speed to reach the high speed PXI analog-to-digital conversion card of 1M.
As shown in Figure 3, the utility model is based on wheel box practical structures characteristics and every technical indicator, utilizes signals collecting and fault diagnosis technology, realizes online detection and diagnosis to endless-track vehicle wet clutch fixed axle gearbox, and its step is as follows:
(1) starts tested vehicle, make the transmission neutral operation of tested vehicle, open the lithium power supply, simultaneously the start detection system;
(2) each the measured point data that will gather of each magnetoelectric transducer, temperature sensor and pressure transducer, behind signal process box conditioning input A/D conversion module, carry out data acquisition by data acquisition module, image data is sent into and is carried out fault diagnosis in the fault diagnosis module, if diagnostic result is normal, storage of collected data then; If diagnostic result shows the wheel box fault, then show failure message in real time, and finish failure code storage and acquired data storage;
(3) finish neutral gear and detect after, fault diagnosis system will point out the neutral gear signal storage to finish, and whether will proceed signals collecting, change the wheel box gear at this moment, the described process of repeating step (2) is until signals collecting and the fault diagnosis finished under all gears;
(4) finish signals collecting and fault diagnosis under all gears after, fault diagnosis system will generate this fault diagnosis report according to image data and fault diagnosis record, and can the printout result.
As shown in Figure 4, the method for diagnosing faults in the wheel box fault diagnosis module in the above-mentioned steps (2) may further comprise the steps:
(1) the manipulation pressure signal that at first provides according to the wheel box front pump, gear shift sleeve pressure signal and lockup clutch pressure signal carry out the gear pressure detection, if each clutch pressure signal of tested gear is normal, then can determine when the front gear box gear; If unusual, then carry out the big small records of abnormal signal amplitude, show current gear abnormal signal failure message;
(2) after current gear is determined,, convert and demonstrate current input speed of wheel box and speed of a motor vehicle numerical value according to input shaft speed measuring gear rotational speed of gathering and three measure speed gears rotating speed, simultaneously according to the input and output revolution speed calculating when front gear box ratio of gear size; If the ratio of gear that calculates equals this gear ratio of gear, show that then current range state is normal; If the ratio of gear that calculates is not equal to this gear ratio of gear, then the particular location of rotating speed fault occurs, and show fault diagnosis result information according to input speed, a rotating speed, two rotating speeds and three tach signal diagnosis;
(3) show after the current gear, detect steering high-pressure outlet and low-pressure inlet hydraulic circuit force value one by one, if high-low pressure oil circuit force value in the technical indicator scope, shows that then steering pressure is normal; If high-low pressure oil circuit force value exceeds the technical indicator scope, then write down and show the exceed standard position and the numerical value that specifically exceeds standard;
(4) after steering detects normally, whether detect wheel box lubricating system lubrication pressure normal, the main lubrication pressure of measuring one, two of transmissions and three is if each lubrication pressure value in normal technical indicator scope, shows then that corresponding each lubrication pressure state is normal; If each lubrication pressure value exceeds the technical indicator scope, then write down and show lubrication pressure trouble location and concrete numerical value;
TTS Transmission Temperature Switch is installed among the lubricating system hydraulic circuit, is being lubricated the system pressure detection simultaneously, and fault diagnosis system will show the wheel box Temperature numerical;
(5) after lubricating system detects normally, fluid torque-converter inlet oil pressure and outlet oil pressure are detected, oil pressure, outlet oil pressure and the two pressure difference value show that then the fluid torque-converter pressure state is normal within normal technical indicator if torque converter enters the mouth; If force value exceeds the technical indicator scope, then write down and show torque converter pressure trouble location and concrete numerical value;
(6) store each acquired signal and failure message, signals collecting and the fault diagnosis under the current gear finished in prompting simultaneously, whether finishes this fault detect or do not need gear shift to proceed signals collecting; If select to finish this fault detect, then generate examining report and printout.
In the above steps, the pressure measurement position of lubricating system comprises that a spindle oil is pressed, two spindle oils are pressed and three spindle oils are pressed three pressure measurement positions; The pressure measurement position of steering comprises and turns to high pressure and turn to the low pressure line oil pressure; The pressure measurement position of fluid torque-converter comprises three pressure measurement positions of locking oil pressure of inlet oil pressure, outlet oil pressure and fluid torque-converter.
The various embodiments described above only are preferred implementations of the present utility model, and are every based on the changes and improvements on the technical solutions of the utility model in the present technique field, should not get rid of outside protection domain of the present utility model.
Claims (7)
1. vehicle speed variation box fault diagnosis detection system, it is characterized in that: it comprises that one contains the fixed axle gearbox of a plurality of wet clutches, and input shaft speed measuring gear, a measure speed gears, two measure speed gearses and three measure speed gearses are sent into the measure speed gears signal in one signal process box in the described wheel box behind magnetoelectric transducer; Lubricating system in the described wheel box is connected with a pressure measurement oil pipe with a temperature sensor respectively, and gear shift sleeve, steering, fluid torque-converter and lockup clutch in the described wheel box are introduced one through a pressure measurement oil pipe respectively with pressure oil and are fixed in the pressure measurement valve plate at described wheel box top, described pressure measurement valve plate top is provided with the pressure measuring tie-in that is used to connect described pressure transducer, and described pressure transducer is imported the fuel injection pressure signal that collects in the described signal process box; The output terminal of described signal process box is sent into signal in one fault diagnosis module behind an analog-to-digital conversion module and a data acquisition module, and described signal process box is powered by a lithium power supply.
2. a kind of vehicle speed variation box fault diagnosis detection system as claimed in claim 1 is characterized in that: be provided with a power-supply filter, a power distribution module, two low-pass filters, a frequency in the described signal process box and press modular converter, two voltage isolation modules and a resistance/voltage transformation module;
Described power filtering module is imported the electric weight of described lithium power supply in the described power distribution module with after the output terminal of lithium power supply is connected; Described magnetoelectric transducer and pressure transducer respectively behind a described low-pass filter, are imported detected signal respectively described frequency and are pressed in a modular converter and the described voltage isolation module; Described temperature sensor behind described resistance/voltage transformation module, is imported detected signal in another described voltage isolation module, and all signals are gathered by described modulus acquisition module.
3. a kind of vehicle speed variation box fault diagnosis detection system as claimed in claim 1 is characterized in that: described lithium power supply adopts the portable lithium power supply of 24V.
4. a kind of vehicle speed variation box fault diagnosis detection system as claimed in claim 2 is characterized in that: described lithium power supply adopts the portable lithium power supply of 24V.
5. as claim 1 or 2 or 3 or 4 described a kind of vehicle speed variation box fault diagnosis detection systems, it is characterized in that: be connected by rapid-acting coupling respectively between each described pressure measurement oil pipe and described wheel box and the pressure measurement valve plate.
6. as claim 1 or 2 or 3 or 4 described a kind of vehicle speed variation box fault diagnosis detection systems, it is characterized in that: described analog-to-digital conversion module adopts the single channel flank speed to reach the high speed PXI analog-to-digital conversion card of 1M.
7. a kind of vehicle speed variation box fault diagnosis detection system as claimed in claim 5 is characterized in that: described analog-to-digital conversion module adopts the single channel flank speed to reach the high speed PXI analog-to-digital conversion card of 1M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201019093U CN201589702U (en) | 2010-01-27 | 2010-01-27 | Fault diagnosis and detection system for vehicle gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201019093U CN201589702U (en) | 2010-01-27 | 2010-01-27 | Fault diagnosis and detection system for vehicle gearbox |
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| CN201589702U true CN201589702U (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201019093U Expired - Fee Related CN201589702U (en) | 2010-01-27 | 2010-01-27 | Fault diagnosis and detection system for vehicle gearbox |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973591A (en) * | 2016-07-18 | 2016-09-28 | 上海索达传动机械有限公司 | Gearbox test system |
| CN114894372A (en) * | 2022-03-21 | 2022-08-12 | 中国北方车辆研究所 | Derailleur pressure measurement device |
-
2010
- 2010-01-27 CN CN2010201019093U patent/CN201589702U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973591A (en) * | 2016-07-18 | 2016-09-28 | 上海索达传动机械有限公司 | Gearbox test system |
| CN105973591B (en) * | 2016-07-18 | 2018-11-20 | 上海索达传动机械有限公司 | A kind of test macro of gearbox |
| CN114894372A (en) * | 2022-03-21 | 2022-08-12 | 中国北方车辆研究所 | Derailleur pressure measurement device |
| CN114894372B (en) * | 2022-03-21 | 2023-09-29 | 中国北方车辆研究所 | Pressure measuring device of speed changer |
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| Date | Code | Title | Description |
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| 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: 20100922 Termination date: 20130127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |