CN112393869A - Impact test device and method for passenger vehicle gearbox - Google Patents
Impact test device and method for passenger vehicle gearbox Download PDFInfo
- Publication number
- CN112393869A CN112393869A CN202010313597.0A CN202010313597A CN112393869A CN 112393869 A CN112393869 A CN 112393869A CN 202010313597 A CN202010313597 A CN 202010313597A CN 112393869 A CN112393869 A CN 112393869A
- Authority
- CN
- China
- Prior art keywords
- gearbox
- detected
- torque
- passenger vehicle
- output
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The impact test device for the passenger vehicle gearbox comprises a supporting device for fixing the passenger vehicle gearbox to be detected, a driving mechanism directly connected with one input end of the passenger vehicle gearbox to be detected, a braking mechanism respectively connected with two output ends of the passenger vehicle gearbox to be detected, and a hydraulic loading device connected with the braking mechanism; the driving mechanism comprises a driving motor, an electromagnetic clutch, an inertia flywheel box and an input transmission shaft which are connected in sequence, and an input end torque and rotating speed sensor is arranged on an output shaft of the inertia flywheel box; the braking mechanism comprises an output transmission shaft, an output end torque and rotating speed sensor, an intermediate support and a braking device which are connected in sequence. The invention can scientifically simulate the instant impact working condition of the gearbox under the whole vehicle working condition, can complete one-time impact test process in a very short time, and has adjustable impact torque, impact simulation inertia and impact test rotating speed.
Description
Technical Field
The invention relates to a passenger vehicle gearbox impact test device and a test method thereof, which are mainly used for simulating an impact working condition encountered under a real vehicle working condition of a passenger vehicle gearbox to perform gearbox impact test.
Background
Under the running working condition of the whole vehicle, when the road surface with low adhesion coefficient is changed into the road surface with high adhesion coefficient and the vehicle is emergently braked, because the wheel end is quickly braked, part of inertia of the input end of the gearbox is generated or the power of the input end is not cut off, the gears, shafting and the like in the gearbox can generate larger instantaneous impact, and the gear breakage and the shafting breakage of the gears of the gearbox can be seriously caused; the conventional test bed cannot scientifically simulate the instantaneous impact working condition of the gearbox under the working condition of the whole vehicle, the test method requires that the test impact is finished in a very short time (the general impact process is finished in (0.1-0.2) s), and the requirements of the impact torque, the impact simulation inertia and the impact test rotating speed are adjustable, so that the test difficulty is high, and no related test bed exists at present in China.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the impact test device for the passenger vehicle gearbox, which can scientifically simulate the running working condition of the passenger vehicle gearbox on the whole vehicle and has the advantages of simple structure, compact layout, reasonable design and high reliability.
The invention further aims to provide a passenger car gearbox impact test method.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a passenger car gearbox impact test device comprises a supporting device used for fixing a to-be-detected passenger car gearbox, a driving mechanism directly connected with one input end of the to-be-detected passenger car gearbox, a braking mechanism respectively connected with two output ends of the to-be-detected passenger car gearbox, and a hydraulic loading device connected with the braking mechanism; the driving mechanism comprises a driving motor, an electromagnetic clutch, an inertia flywheel box and an input transmission shaft which are connected in sequence, and an input end torque and rotating speed sensor is arranged on an output shaft of the inertia flywheel box; the brake mechanism comprises an output transmission shaft, an output end torque and rotation speed sensor, an intermediate support and a brake device which are sequentially connected, wherein the brake device is formed by matching a brake disc with two sets of brake calipers, and the brake calipers are fixed on the intermediate support; the brake device comprises a left brake device connected with the left output end of the gearbox of the passenger vehicle to be detected and a right brake device connected with the right output end of the gearbox of the passenger vehicle to be detected. And a brake disc and two brake calipers are arranged on one side of the brake disc, so that larger brake torque can be obtained, and the sample condition is closer to the working condition of a real vehicle. And the brake disc and the brake calipers are brakes for assembling the real vehicle.
The device also comprises a data acquisition system for acquiring torque and rotating speed signals of the input end torque rotating speed sensor and the output end torque rotating speed sensor, and an electrical control system for controlling the work of the driving motor, the data acquisition system, the electromagnetic clutch and the hydraulic loading system. The hydraulic loading device is internally provided with a hydraulic pump which can quickly establish hydraulic pressure output, and the magnitude value and the pressure establishment time of the output pressure can be adjusted.
The inertia flywheel box comprises inertia flywheels with different inertias, and the suitable inertias can be selected according to different sample parameters for matching.
The supporting device is a mounting bracket which is fixed on the ground. And in each test, the driving mechanism is only connected with the input end of the gearbox of the passenger vehicle to be detected.
A passenger car gearbox impact test method comprises the following steps:
1) configuring an inertia flywheel suitable for an inertia flywheel box according to the design value of the rotational inertia of the input end of the transmission of the passenger vehicle to be detected;
2) the electric control system controls the driving motor to drive the transmission case of the passenger vehicle to be detected to run to a set value required by the test condition when the input test rotating speed of the transmission case of the passenger vehicle to be detected reaches the test condition;
3) and the electrical control system controls in sequence: the electromagnetic clutch is switched from a closed state to an open state, and the hydraulic loading system enables the brake calipers at the two output ends of the gearbox of the passenger car to be detected to brake with the brake disc respectively, so that the impact state of the gearbox of the passenger car to be detected under the working condition of the real car is simulated;
4) the electric control system analyzes whether the maximum torque value a and the torque response time t of the input end or the output end of the gearbox of the passenger vehicle to be detected reach the set value required by the test condition, if the maximum torque value a and the torque response time t reach the set value required by the test condition, the single-cycle test of the impact test is finished, and if the maximum torque value a and the torque response time t do not reach the set value required by the test condition, the step 5 is carried out;
5) the electric control system adjusts the output pressure and the loading rate of the hydraulic loading system, the steps 2), 3) and 4) are repeatedly carried out until the electric control system judges that the maximum torque value a and the response time t of the torque of the input end or the output end of the gearbox of the passenger car to be detected reach the set values required by the test conditions, and the single-cycle test of the impact test is finished;
6) in the test, if the rotating speed data of the two output ends of the gearbox of the passenger vehicle to be detected are not equal to generate differential speed, the step 7) is carried out;
7) and the electrical control system adjusts the loading pressure and the loading speed which are output by the hydraulic loading system to the left/right braking devices, and the steps 2), 3) and 4) are repeated until the electrical control system monitors that the rotating speed data of the two output ends of the gearbox of the passenger car to be detected are equal in real time.
The transmission case of the passenger vehicle to be detected completely simulates the actual vehicle condition, and the high-speed operation is quickly stopped during the actual test, so that the kinetic energy cannot be completely released, and the transmission case of the passenger vehicle to be detected is internally provided with a tooth side gap and a shaft system has certain elasticity, so that the transmission case can rebound reversely, the rebound energy is attenuated for multiple times, and finally the transmission case is stopped, so that the input end of the transmission case of the passenger vehicle to be detected can generate quick bidirectional alternating impact shock. In order to avoid inaccurate test caused by amplified oscillation effect, the input end of the gearbox of the passenger vehicle to be detected is directly connected with the flywheel box which is configured to be suitable according to the design value of the rotational inertia of the input end of the gearbox of the passenger vehicle to be detectedThe inertia flywheel of (1). The input end of a passenger vehicle gearbox is generally an engine or a motor, the inertia is generally small and is generally 1kgm2The following. The inertia parameters can be accurately set to more scientifically meet the actual vehicle condition, the input end has no intermediate link, and the requirement that the test method requires the test impact to be completed in a very short time (the general impact process is completed in (0.1-0.2) s) can be met. The inertia flywheel box is rigidly connected with the gearbox of the passenger car to be detected, only normal positive and negative direction alternating impact oscillation can be generated under the condition of the real car working condition of a simulation sample, and abnormal oscillation cannot be generated, so that the oscillation amplification effect is avoided. Meanwhile, the two output ends of the passenger car gearbox to be detected are respectively provided with the double calipers and the single brake disc, the braking torque can be doubled by the structural mode, and the effect of the structural mode is that the two output ends can be quickly braked by matching with the sample input end torque and the response time requirement (within 0.1-0.2) s at the same time.
The invention can scientifically simulate the instant impact working condition of the gearbox under the working condition of the whole vehicle, can complete one-time impact test process (the general impact process is completed within (0.1-0.2) s) in a very short time, and can adjust the impact torque, the impact simulation inertia and the impact test rotating speed. The invention can simulate the impact on the gearbox of the passenger vehicle under special working conditions, and achieves the purpose of inspecting the performance and durability of the gearbox assembly of the passenger vehicle under the working conditions of the whole vehicle. The test method of the invention has inertia matching, starting test condition judgment, torque requirement value, torque response time and other adjustment methods, and the measured data is scientific and meets the requirements of the working conditions of the real vehicle.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a curve of the torque A at the input/output end of the transmission of the passenger vehicle to be detected along with the time T;
in the figure: 1. driving motor, 2, electromagnetic clutch, 3, inertia flywheel box, 4, input torque speed sensor, 5, input transmission shaft, 6, passenger car gearbox to be detected, 7, installing support, 8, left side output transmission shaft, 9, left side output end torque speed sensor, 10, left side intermediate strut, 11, brake caliper one, 12, brake disc one, 13, brake caliper two, 14, right side output transmission shaft, 15, right side output end torque speed sensor, 16, data acquisition system, 17, right side intermediate strut, 18, brake caliper three, 19, brake disc two, 20, brake caliper four, 21, hydraulic loading system, 22, electrical control system.
Detailed Description
As shown in fig. 1, the transmission 6 of the passenger car to be detected is fixed on a mounting bracket 7. The driving motor 1 is connected with the inertia flywheel box 3 through the electromagnetic clutch 2, the output end of the inertia flywheel box 3 is connected with the input torque and rotating speed sensor 4, and then is connected with the input end of the transmission case 6 of the passenger car to be detected through the input transmission shaft 5. The driving mechanism connected with the input end of the test sample of the passenger vehicle gearbox is directly connected with the sample, and the middle part of the driving mechanism is not provided with a transition gearbox.
The left output port of the transmission case 6 of the passenger car to be detected is connected with the right port of the left middle support 10 through a left output transmission shaft 8 and a left output torque rotating speed sensor 9 in sequence. The left output port of the left middle support 10 is connected with a first brake disc 12, a first brake caliper 11 and a second brake caliper 13 are fixed on the outer shell of the left middle support 10 through mounting holes of the first brake caliper 11 and the second brake caliper 13, and the first brake caliper 11 and the second brake caliper 13 are in friction contact with the working surface of the first brake disc 12 through brake pads of the second brake caliper.
The right output port of the passenger car gearbox 6 to be detected is connected with the left port of the right middle support 17 through a right output transmission shaft 14 and a right output torque rotating speed sensor 15 in sequence. The right output port of the right middle support 17 is connected with a second brake disc 19, a third brake caliper 18 and a fourth brake caliper 20 are fixed on the outer shell of the right middle support 17 through mounting holes of the third brake caliper 18 and the fourth brake caliper 20, and the third brake caliper 18 and the fourth brake caliper 20 are in friction contact with the working surface of the second brake disc 19 through brake pads of the third brake caliper and the fourth brake caliper 20.
The rotating speed and torque signals output by the input torque rotating speed sensor 4, the left output torque rotating speed sensor 9 and the right output torque rotating speed sensor 15 are all transmitted to a data acquisition system 16. The first brake caliper 11, the second brake caliper 13, the third brake caliper 18 and the fourth brake caliper 20 are all connected with a hydraulic loading system 21. The driving motor 1, the data acquisition system 16 and the hydraulic loading system 21 are all connected with an electrical control system 22. Before the test, an inertia flywheel suitable for the inertia flywheel box 3 is configured according to the design value of the rotational inertia of the input end of the passenger vehicle gearbox test sample 6. The electric control system 22 judges whether the input test rotating speed of the passenger car gearbox 6 to be detected reaches a set value required by test conditions according to the rotating speed value of the input torque rotating speed sensor 4 acquired by the data acquisition system 16, if the input test rotating speed reaches the set value required by the test conditions, the electric control system 22 sequentially controls the electromagnetic clutch 2 to be switched from a closed state to an open state, and controls the hydraulic loading system 21 to enable the first brake caliper 11, the second brake caliper 13, the third brake caliper 18 and the fourth brake caliper 20 to be rapidly braked with the first brake disc 12 and the second brake disc 19 respectively, so that the impact state of the passenger car gearbox 6 to be detected under the working condition of the real car is simulated. The hydraulic loading system is internally provided with a hydraulic pump which can quickly build hydraulic pressure and output the hydraulic pressure, and the magnitude of the output pressure and the pressure building time can be adjusted. In the test process, if the torque requirement value and the torque response time acquired by the data acquisition system 16 are not satisfied, the torque requirement value and the torque response time are realized by adjusting the output pressure and the loading rate of the hydraulic loading system 21. In the test process, the output rotating speeds of the left output torque rotating speed sensor 9 and the right output torque rotating speed sensor 15 of the passenger car gearbox 6 to be detected must be monitored to be equal in real time, and the left output end and the right output end of the passenger car gearbox 6 to be detected are ensured not to be differential. The hydraulic loading system 21 is utilized to adjust the difference value of the pressures output to the braking mechanisms at the left and right output ends of the passenger car gearbox 6 to be detected, so that the output rotating speeds of the left output torque rotating speed sensor 9 and the right output torque rotating speed sensor 15 of the passenger car gearbox 6 to be detected are gradually close to and finally equal to each other, and the non-differential speed is realized. The left and right output differential speed can cause the maximum torque value of the input end or the output end to not meet the requirement of test conditions, and can damage the internal structure of the gearbox 6 of the passenger car to be detected.
Fig. 2 is a curve of the input/output torque a of the transmission 6 of the passenger car to be detected along with the time T, the response time T of the torque is the time from the moment when the input/output torque of the transmission 6 of the passenger car to be detected is 0 to the moment when the maximum value of the torque detected for the first time is a after braking, and the response time T should be between (0.1-0.2) s.
Claims (4)
1. The utility model provides a passenger car gearbox impact test device which characterized in that: the device comprises a supporting device for fixing a gearbox (6) of the passenger car to be detected, a driving mechanism directly connected with one input end of the gearbox (6) of the passenger car to be detected, a braking mechanism respectively connected with two output ends of the gearbox of the passenger car to be detected, and a hydraulic loading device connected with the braking mechanism; the driving mechanism comprises a driving motor (1), an electromagnetic clutch (2), an inertia flywheel box (3) and an input transmission shaft (5) which are connected in sequence, and an input end torque and rotating speed sensor (4) is installed on an output shaft of the inertia flywheel box (3); the brake mechanism comprises an output transmission shaft, an output end torque and rotation speed sensor, an intermediate support and a brake device which are sequentially connected, wherein the brake device is formed by matching a brake disc with two sets of brake calipers, and the brake calipers are fixed on the intermediate support; the brake device comprises a left brake device connected with the left output end of the gearbox of the passenger vehicle to be detected and a right brake device connected with the right output end of the gearbox of the passenger vehicle to be detected;
the device also comprises a data acquisition system (16) for acquiring the torque and the rotating speed signals of the input end torque rotating speed sensor (4) and the output end torque rotating speed sensor, and an electrical control system (22) for controlling the work of the driving motor (1), the data acquisition system (16), the electromagnetic clutch (2) and the hydraulic loading system (21).
2. The passenger car transmission impact testing device of claim 1, wherein: the inertia flywheel box comprises inertia flywheels with different inertia.
3. The passenger car transmission impact testing device of claim 1, wherein: the supporting device is a mounting bracket (7), and the mounting bracket (7) is fixed on the ground.
4. A method for impact testing of a passenger car gearbox by using the impact testing device of a passenger car gearbox according to any one of claims 1 to 3, characterized in that: the method comprises the following steps:
1) configuring an inertia flywheel suitable for the inertia flywheel box (3) according to the design value of the rotational inertia of the input end of the gearbox (6) of the passenger vehicle to be detected;
2) the electric control system (22) controls the driving motor (1) to drive the transmission case (6) of the passenger vehicle to be detected to run to the set value required by the test condition of the input test rotating speed of the transmission case (6) of the passenger vehicle to be detected;
3) and an electrical control system (22) sequentially controls: the electromagnetic clutch (2) is switched from a closed state to an open state, and the hydraulic loading system (21) is used for enabling the brake calipers at the two output ends of the gearbox (6) of the passenger vehicle to be detected to brake with the brake disc respectively, so that the impact state of the gearbox (6) of the passenger vehicle to be detected under the working condition of a real vehicle is simulated;
4) the electric control system (22) analyzes whether the maximum torque value a and the response time t of the torque at the input end or the output end of the gearbox (6) of the passenger vehicle to be detected reach the set value required by the test condition, if the maximum torque value a and the response time t of the torque reach the set value required by the test condition, the single-cycle test of the impact test is finished, and if the maximum torque value a and the response time t of the torque do not reach the set value required by the test condition;
5) the electric control system (22) adjusts the output pressure and the loading rate of the hydraulic loading system (21), the steps 2), 3) and 4) to the electric control system (22) are repeated, the maximum torque value a of the input end or the output end of the gearbox (6) of the passenger vehicle to be detected and the response time t of the torque reach set values required by test conditions, and the single-cycle test of the impact test is finished;
6) in the test, if the rotating speed data of the two output ends of the gearbox (6) of the passenger vehicle to be detected are not equal to generate differential speed, the step 7) is carried out;
7) and the electrical control system (22) adjusts the loading pressure and the loading speed of the hydraulic loading system (21) output to the left/right brake device, and the steps 2), 3 and 4 are repeated until the electrical control system (22) monitors that the rotating speed data of the two output ends of the gearbox (6) of the passenger vehicle to be detected are equal in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313597.0A CN112393869B (en) | 2020-04-20 | 2020-04-20 | Impact test device and method for passenger vehicle gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313597.0A CN112393869B (en) | 2020-04-20 | 2020-04-20 | Impact test device and method for passenger vehicle gearbox |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112393869A true CN112393869A (en) | 2021-02-23 |
| CN112393869B CN112393869B (en) | 2022-05-20 |
Family
ID=74603775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010313597.0A Active CN112393869B (en) | 2020-04-20 | 2020-04-20 | Impact test device and method for passenger vehicle gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112393869B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008554A (en) * | 2021-04-25 | 2021-06-22 | 重庆理工大学 | Impact endurance test method for new energy reducer |
| CN113008553A (en) * | 2021-04-25 | 2021-06-22 | 重庆理工大学 | New forms of energy reduction gear impact endurance test device |
| CN113049248A (en) * | 2021-04-25 | 2021-06-29 | 重庆理工大学 | Impact endurance test system and method for new energy reducer |
| CN113189475A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Function test system and method of locking assembly |
| CN113188813A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Testing arrangement of locking assembly |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2259993B (en) * | 1991-09-19 | 1994-09-07 | Honda Motor Co Ltd | Method of testing a limited slip differential |
| CN2837813Y (en) * | 2005-07-14 | 2006-11-15 | 管文礼 | The variator experiment table |
| CN2914104Y (en) * | 2006-05-22 | 2007-06-20 | 比亚迪股份有限公司 | Testing device of electric motor |
| CN201488880U (en) * | 2009-07-22 | 2010-05-26 | 安徽巨一自动化装备有限公司 | Test device of passenger vehicle four-terminal braking system |
| CN202433191U (en) * | 2011-12-30 | 2012-09-12 | 长城汽车股份有限公司 | Test system in automotive speed changer laboratory |
| CN202582894U (en) * | 2011-12-26 | 2012-12-05 | 天津天海同步科技股份有限公司 | Novel limited-slip differential experiment table |
| CN103245499A (en) * | 2012-09-14 | 2013-08-14 | 襄阳达安汽车检测中心 | Fatigue test stand for gearbox of passenger vehicle |
| CN203414270U (en) * | 2013-08-27 | 2014-01-29 | 襄阳达安汽车检测中心 | Passenger car transmission synchronizer test device |
| CN104266847A (en) * | 2014-11-02 | 2015-01-07 | 青岛大学 | High-speed vehicle brake test device and control method thereof |
| JP5737784B2 (en) * | 2011-05-27 | 2015-06-17 | ダイハツ工業株式会社 | Transmission output inspection device |
| CN109827770A (en) * | 2019-03-20 | 2019-05-31 | 重庆理工大学 | One kind being suitable for automobile gearbox gear shock loading test device and method |
-
2020
- 2020-04-20 CN CN202010313597.0A patent/CN112393869B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2259993B (en) * | 1991-09-19 | 1994-09-07 | Honda Motor Co Ltd | Method of testing a limited slip differential |
| CN2837813Y (en) * | 2005-07-14 | 2006-11-15 | 管文礼 | The variator experiment table |
| CN2914104Y (en) * | 2006-05-22 | 2007-06-20 | 比亚迪股份有限公司 | Testing device of electric motor |
| CN201488880U (en) * | 2009-07-22 | 2010-05-26 | 安徽巨一自动化装备有限公司 | Test device of passenger vehicle four-terminal braking system |
| JP5737784B2 (en) * | 2011-05-27 | 2015-06-17 | ダイハツ工業株式会社 | Transmission output inspection device |
| CN202582894U (en) * | 2011-12-26 | 2012-12-05 | 天津天海同步科技股份有限公司 | Novel limited-slip differential experiment table |
| CN202433191U (en) * | 2011-12-30 | 2012-09-12 | 长城汽车股份有限公司 | Test system in automotive speed changer laboratory |
| CN103245499A (en) * | 2012-09-14 | 2013-08-14 | 襄阳达安汽车检测中心 | Fatigue test stand for gearbox of passenger vehicle |
| CN203414270U (en) * | 2013-08-27 | 2014-01-29 | 襄阳达安汽车检测中心 | Passenger car transmission synchronizer test device |
| CN104266847A (en) * | 2014-11-02 | 2015-01-07 | 青岛大学 | High-speed vehicle brake test device and control method thereof |
| CN109827770A (en) * | 2019-03-20 | 2019-05-31 | 重庆理工大学 | One kind being suitable for automobile gearbox gear shock loading test device and method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008554A (en) * | 2021-04-25 | 2021-06-22 | 重庆理工大学 | Impact endurance test method for new energy reducer |
| CN113008553A (en) * | 2021-04-25 | 2021-06-22 | 重庆理工大学 | New forms of energy reduction gear impact endurance test device |
| CN113049248A (en) * | 2021-04-25 | 2021-06-29 | 重庆理工大学 | Impact endurance test system and method for new energy reducer |
| CN113008553B (en) * | 2021-04-25 | 2023-11-07 | 重庆理工大学 | Impact endurance test device for new energy reducer |
| CN113008554B (en) * | 2021-04-25 | 2023-11-21 | 重庆理工大学 | Impact durability test method for new energy reducer |
| CN113189475A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Function test system and method of locking assembly |
| CN113188813A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Testing arrangement of locking assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112393869B (en) | 2022-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112393869B (en) | Impact test device and method for passenger vehicle gearbox | |
| CN109827770B (en) | Device and method suitable for testing impact load of automobile gearbox gear | |
| CN101865778B (en) | Torsional vibration excitation device and test bed of vehicle drive system | |
| CN103674391B (en) | Disc brake drags force moment testing device and method of testing | |
| CN103308325B (en) | Drive system of electric automobile semi-physical emulation platform | |
| CN201993232U (en) | Bus hub bearing loading simulation testing device | |
| CN102749205A (en) | Simulation braking bench for automobile disc brake | |
| CN202661273U (en) | Simulation braking bench of automobile disc brake | |
| CN104048835A (en) | Automobile brake simulation testing platform | |
| CN110243604B (en) | Intermediary bearing vibration test device | |
| CN111929064A (en) | Multi-dimensional automatic loading fatigue testing machine for bearing | |
| CN113203562B (en) | Gear dynamic stress measuring system | |
| CN202994993U (en) | Single-wheel drive mode test system and drive comprehensive performance test apparatus formed by the same | |
| CN208476444U (en) | A kind of driving axis bearing staring torque test acquisition analysis system | |
| CN213209487U (en) | Radial fatigue testing machine for wheel | |
| CN113008553B (en) | Impact endurance test device for new energy reducer | |
| CN203203787U (en) | Aeroengine high pressure compressor first order disc fatigue circulating test apparatus | |
| CN113899539B (en) | Dual-rotor bearing cartridge receiver experiment system | |
| CN113049248A (en) | Impact endurance test system and method for new energy reducer | |
| CN112857825A (en) | Adhesion coefficient real-time adjustable vehicle ABS brake simulation bench and test method thereof | |
| CN207197812U (en) | A kind of mechanical transmission contact (area) pattern testing stand | |
| CN209820769U (en) | New forms of energy pure electric automobile electric drive assembly detection device | |
| CN106872164A (en) | A kind of Automobile flywheel fatigue rupture is test bed | |
| CN110194282B (en) | Airplane wheel brake vibration testing method applying vibration measurement technology | |
| CN203365152U (en) | Performance testing device for self-energizing drum brake of automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |