CN103852254A - Method for testing static torsion strength of automotive transmission system - Google Patents
Method for testing static torsion strength of automotive transmission system Download PDFInfo
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- CN103852254A CN103852254A CN201210522136.XA CN201210522136A CN103852254A CN 103852254 A CN103852254 A CN 103852254A CN 201210522136 A CN201210522136 A CN 201210522136A CN 103852254 A CN103852254 A CN 103852254A
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Abstract
The invention relates to the field of measurement, in particular to a method for testing static torsion strength of an automotive transmission system. The method includes the following steps that A, a torsion and rotation speed sensor, a first torque sensor, a second torque sensor, a third torque sensor, a fourth torque sensor and a fixing clamp are installed in the transmission system; B, a gear shift control mechanism is shifted to a certain gear; C, a data collection and control system sends an instruction to a variable frequency motor, so that the variable frequency motor increases output torque slowly until a certain component in the transmission system loses efficacy or reaches a design value; D, the data collection and control system obtains torsion data and rotation angle data from the torsion and rotation speed sensor, and obtains torque data from the first torque sensor, the second torque sensor, the third torque sensor and the fourth torque sensor, wherein the data are data of the static torsion strength of the transmission system. The structure is simple and stable, maintenance is easy, the method is suitable for all front-engine rear-drive automobile types, and references are provided for design improvement.
Description
Technical field
The present invention relates to fields of measurement, relate in particular to a kind of car transmissions static twist strength test method.
Background technology
Car transmissions are the actuating units between motor car engine and driving wheel, and it is that the power that engine is exported passes to driving wheel that its basic training is used.Car transmissions mainly comprise the parts such as clutch coupling, variator, main reducing gear, differential mechanism and semiaxis, this system need to engine collaborative work, to guarantee automobile normally travel necessary driving force and the speed of a motor vehicle under various driving conditions, for guaranteeing that kinematic train normally works under the operational circumstances of different driving cycles and different user, car transmissions need meet certain static twist requirement of strength.
Summary of the invention
The technical matters that the present invention solves is: build a kind of car transmissions static twist Strength Testing Methods, can measure easily the static twist intensity of whole car transmissions, find out the thin spot of kinematic train, thereby provide reference frame for design improvement.
The technical scheme that the present invention takes is for building a kind of car transmissions static twist strength test method, and the method comprises the following steps:
A, by sectional fixture, kinematic train all parts is arranged on testing table, and regulates sectional fixture, car transmissions all parts is adjusted to real vehicle installment state;
B, variable-frequency motor is connected with wheel box by torque rotary speed sensor, as the power source of car transmissions; Transmission shaft is connected with wheel box by the first torque sensor; Main reducing gear is connected with transmission shaft by the second torque sensor; The first drive axle is connected with the first load by the 3rd torque sensor; The second drive axle is connected with the second load by the 4th torque sensor; Stationary fixture is installed between described the second torque sensor and described main reducing gear;
C, shift control mechanism is pushed to a certain gear;
D, data collection and control system are sent instruction to variable-frequency motor, make it slowly increase output torque, until certain part failure or reach design load in kinematic train;
E, data collection and control system obtain variable-frequency motor torque data from described torque rotary speed sensor, obtain wheel box moment of torsion data from described the first torque sensor, obtain torque transmission shaft data from described the second torque sensor, obtain the first drive axle moment of torsion data from described the 3rd torque sensor, obtain the second drive axle moment of torsion data from described the 4th torque sensor;
F, disassemble kinematic train all parts, according to the test figure of each parts, differentiate weak link and the static twist intensity thereof of kinematic train.
As a further improvement on the present invention, described step B also has B1 step by step, adjusts the angle of the axis of described transmission shaft and the axis of described wheel box, and the method can be measured in the situation lower transmission system of this angle and the transmission efficiency of each parts thereof.
As a further improvement on the present invention, described step B also has B2 step by step: adjust the angle of the axis of described main reducing gear and the axis of described transmission shaft, the method can be measured in the situation lower transmission system of this angle and the transmission efficiency of each parts thereof.
As a further improvement on the present invention, described step D comprises D1 step by step: test appears stopping when abnormal in the data that show in each torsion sensor.
As a further improvement on the present invention, described torque rotary speed sensor both sides are provided with shaft coupling.
As a further improvement on the present invention, described torque sensor both sides are provided with shaft coupling.
The invention has the beneficial effects as follows: by increasing test fixture assembly, can once complete the strength test of whole kinematic train static twist, the quiet torsional strength of the detailed kinematic train under acquisition real vehicle installment state under variator axis angles different from drive shaft axis or main reducing gear axis angles different from drive shaft axis, it is simple in structure and stable, be easy to safeguard, can be widely used in the vehicle of all front-engine rear-drives, for design improvement improves reference frame.
Accompanying drawing explanation
Fig. 1 is the structural representation of car transmissions static twist Strength Testing Methods of the present invention;
Fig. 2 is the process flow diagram of car transmissions static twist Strength Testing Methods of the present invention.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the present invention is further described.
As shown in Figure 1, numeral in figure: 1, variable-frequency motor; 2, shaft coupling; 3, torque rotary speed sensor; 4, shift control mechanism; 5, wheel box; 6, the first torque sensor; 7, transmission shaft; 8, the second torque sensor; 9, drive axle; 10, the 3rd torque sensor; 11, the first load; 12, stationary fixture; 13, main reducing gear; 14, the 4th torque sensor; 15, data collection and control system; 16, the second load; 17, support fixture.In whole kinematic train, variable-frequency motor 1 is connected with wheel box 5 by torque rotary speed sensor 3, as the power source of car transmissions, the first torque sensor 6 is connected with wheel box 5 and transmission shaft 7 by shaft coupling 2, the second torque sensor 8 is connected with transmission shaft 7 and main reducing gear 13 by shaft coupling 2, main reducing gear 13 is connected with drive axle 9, and 13 places increase stationary fixture 12 at main reducing gear, the displacement in the vertical direction of restriction main reducing gear 13, can prevent that speed reduction unit main shaft is because of bend fracture quiet while turning round strength test, drive axle 9 two ends by shaft coupling 2 respectively with the 3rd torque sensor 10, the 4th square sensor 14 connects, simultaneously with the first load 11, the second load 16 connects, support fixture 17 plays support fixation.
As shown in Figure 2, car transmissions static twist Strength Testing Methods of the present invention comprises the following steps:
S01, by sectional fixture, kinematic train all parts is arranged on testing table, and regulates sectional fixture, car transmissions all parts is adjusted to real vehicle installment state;
S02, variable-frequency motor 1 is connected with wheel box 5 by torque rotary speed sensor 3, as the power source of car transmissions; Transmission shaft 7 is connected with wheel box 5 by the first torque sensor 6; Main reducing gear 13 is connected with transmission shaft 7 by the second torque sensor 8; The first drive axle 9 is connected with the first load 11 by the 3rd torque sensor 10; The second drive axle 18 is connected with the second load 16 by the 4th torque sensor 14; Stationary fixture 12 is installed between described the second torque sensor 6 and described main reducing gear 13;
S03, shift control mechanism is pushed to a certain gear;
S04, data collection and control system 15 are sent instruction to variable-frequency motor 1, make it slowly increase output torque, until certain part failure or reach design load in kinematic train;
S05, data collection and control system 15 obtain variable-frequency motor torque data from described torque rotary speed sensor 3, obtain wheel box moment of torsion data from described the first torque sensor 6, obtain torque transmission shaft data from described the second torque sensor 8, obtain the first drive axle moment of torsion data from described the 3rd torque sensor 10, obtain the second drive axle moment of torsion data from described the 4th torque sensor 14;
S06, disassemble kinematic train all parts, can find injured part, according to the test figure of each parts, determine weak link and the camera lens torsional strength of car transmissions by the data of record, thereby differentiate weak link and the static twist intensity thereof of kinematic train.
In described step S02, adjust the angle of the axis of described transmission shaft and the axis of described wheel box, the method can be measured in the situation lower transmission system of this angle and the transmission efficiency of each parts thereof.
In described step S02: adjust the angle of the axis of described main reducing gear and the axis of described transmission shaft, the method can be measured in the situation lower transmission system of this angle and the transmission efficiency of each parts thereof.
In described step S04: test appears stopping when abnormal in the data that show in each torsion sensor.
As shown in Figure 1, described shaft rotation speed transducer both sides are provided with shaft coupling, and shaft coupling is that two axles (main drive shaft and driven shaft) for connecting in different institutions make it the mechanical component of common rotation with transmitting torque.
As shown in Figure 1, described torque sensor both sides are provided with shaft coupling, and the both sides of the first torque sensor 6, the second torque sensor 8, the 3rd torque sensor 10, the 4th torque sensor 13 are all provided with shaft coupling.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. a car transmissions static twist strength test method, is characterized in that: the method comprises the following steps:
A, by sectional fixture, kinematic train all parts is arranged on testing table, and regulates sectional fixture, car transmissions all parts is adjusted to real vehicle installment state;
B, variable-frequency motor is connected with wheel box by torque rotary speed sensor, as the power source of car transmissions; Transmission shaft is connected with wheel box by the first torque sensor; Main reducing gear is connected with transmission shaft by the second torque sensor; The first drive axle is connected with the first load by the 3rd torque sensor; The second drive axle is connected with the second load by the 4th torque sensor; Stationary fixture is installed between described the second torque sensor and described main reducing gear;
C, shift control mechanism is pushed to a certain gear;
D, data collection and control system are sent instruction to variable-frequency motor, make it slowly increase output torque, until certain part failure or reach design load in kinematic train;
E, data collection and control system obtain variable-frequency motor torque data from described torque rotary speed sensor, obtain wheel box moment of torsion data from described the first torque sensor, obtain torque transmission shaft data from described the second torque sensor, obtain the first drive axle moment of torsion data from described the 3rd torque sensor, obtain the second drive axle moment of torsion data from described the 4th torque sensor;
F, disassemble kinematic train all parts, according to the test figure of each parts, differentiate weak link and the static twist intensity thereof of kinematic train.
2. car transmissions static twist strength test method according to claim 1, it is characterized in that: described step B also has B1 step by step, adjust the angle of the axis of described transmission shaft and the axis of described wheel box, the method can be measured in the situation lower transmission system of this angle and the transmission efficiency of each parts thereof.
3. car transmissions static twist strength test method according to claim 1, it is characterized in that: described step B also has B2 step by step: adjust the angle of the axis of described main reducing gear and the axis of described transmission shaft, the method can be measured in the situation lower transmission system of this angle and the transmission efficiency of each parts thereof.
4. car transmissions static twist strength test method according to claim 1, is characterized in that: described step D comprises D1 step by step: test appears stopping when abnormal in the data that show in each torsion sensor.
5. car transmissions static twist strength test method according to claim 1, is characterized in that: described torque rotary speed sensor both sides are provided with shaft coupling.
6. car transmissions static twist strength test method according to claim 1, is characterized in that: described torque sensor both sides are provided with shaft coupling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210522136.XA CN103852254A (en) | 2012-12-07 | 2012-12-07 | Method for testing static torsion strength of automotive transmission system |
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| CN201210522136.XA CN103852254A (en) | 2012-12-07 | 2012-12-07 | Method for testing static torsion strength of automotive transmission system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300707A (en) * | 2015-11-17 | 2016-02-03 | 中国第一汽车股份有限公司 | Static torsion test device of wheel edge speed reducer |
| CN105547693A (en) * | 2015-12-29 | 2016-05-04 | 安徽农业大学 | Four-wheel driven automobile transfer case loading detection testboard |
| CN104458083B (en) * | 2014-11-28 | 2017-01-04 | 奇瑞汽车股份有限公司 | A kind of engine shaft system static state transmission torque measurement frock and measuring method |
| CN107089314A (en) * | 2017-04-10 | 2017-08-25 | 安徽理工大学 | A kind of Novel bionic fishtail propulsion plant |
| CN107764548A (en) * | 2017-11-09 | 2018-03-06 | 厦门厦工机械股份有限公司 | The test system of freewheel clutch |
| CN110146206A (en) * | 2019-06-04 | 2019-08-20 | 安徽江淮汽车集团股份有限公司 | Torque dynamic calibration system, method and computer readable storage medium |
| CN110907199A (en) * | 2019-12-31 | 2020-03-24 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
| CN111623911A (en) * | 2020-05-29 | 2020-09-04 | 重庆长安汽车股份有限公司 | Method and tool for testing connection sliding moment of adjacent parts in crankshaft flywheel set |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458083B (en) * | 2014-11-28 | 2017-01-04 | 奇瑞汽车股份有限公司 | A kind of engine shaft system static state transmission torque measurement frock and measuring method |
| CN105300707A (en) * | 2015-11-17 | 2016-02-03 | 中国第一汽车股份有限公司 | Static torsion test device of wheel edge speed reducer |
| CN105547693A (en) * | 2015-12-29 | 2016-05-04 | 安徽农业大学 | Four-wheel driven automobile transfer case loading detection testboard |
| CN105547693B (en) * | 2015-12-29 | 2018-01-02 | 安徽农业大学 | A kind of 4 wheel driven transfer case of automobile loads Detecting data |
| CN107089314A (en) * | 2017-04-10 | 2017-08-25 | 安徽理工大学 | A kind of Novel bionic fishtail propulsion plant |
| CN107764548A (en) * | 2017-11-09 | 2018-03-06 | 厦门厦工机械股份有限公司 | The test system of freewheel clutch |
| CN110146206A (en) * | 2019-06-04 | 2019-08-20 | 安徽江淮汽车集团股份有限公司 | Torque dynamic calibration system, method and computer readable storage medium |
| CN110907199A (en) * | 2019-12-31 | 2020-03-24 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
| CN110907199B (en) * | 2019-12-31 | 2022-02-01 | 一汽解放汽车有限公司 | Impact durability test bed and bench test method for differential lock between wheels of drive axle |
| CN111623911A (en) * | 2020-05-29 | 2020-09-04 | 重庆长安汽车股份有限公司 | Method and tool for testing connection sliding moment of adjacent parts in crankshaft flywheel set |
| CN111623911B (en) * | 2020-05-29 | 2021-11-02 | 重庆长安汽车股份有限公司 | Method and tool for testing connection sliding moment of adjacent parts in crankshaft flywheel set |
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Application publication date: 20140611 |