CN102359883B - Driving mechanism for automatic coaxial experiment test of automobile transmission component - Google Patents
Driving mechanism for automatic coaxial experiment test of automobile transmission component Download PDFInfo
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- CN102359883B CN102359883B CN 201110238317 CN201110238317A CN102359883B CN 102359883 B CN102359883 B CN 102359883B CN 201110238317 CN201110238317 CN 201110238317 CN 201110238317 A CN201110238317 A CN 201110238317A CN 102359883 B CN102359883 B CN 102359883B
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Abstract
The invention relates to a driving mechanism for an automatic coaxial experiment test of an automobile transmission component, which comprises a machine frame, a frequency change motor, a driving shaft, two sets of belt transmission mechanisms, a small air cylinder and a main air cylinder. The invention initiatively solves the problem of different shaft driving of the rotating driving of a driving shaft and a driven shaft. The driving mechanism has the advantages that high noise caused by the driving of different shafts is greatly reduced, the loss generated by test components during the driving of different shafts is eliminated, the high-power and high-rotating-speed driving of the test components is easy to realize, the application range of the driving mechanism is wide, and the driving mechanism can be theoretically applied to the driving of the rotating performance test of all motor machine transmission components.
Description
Technical field
The invention belongs to automobile transmission part quality testing testing equipment technical field, be specifically related to driving mechanism for automatic coaxial experiment test of automobile transmission component.
Background technology
In various motor devices, driving source drives terminator by drive disk assemblies such as gear train, gear, transfer gears and carries out work.In the assembly quality of these gear trains detects, need to be rotated driving to detection part, under certain speed conditions, the master is by the mesh degree of tooth in the test transmission, the transmission abnormal sound, the unloaded resistive torque that drives, the running of loading simulation actual condition, whether the performances such as rotational noise level meet the regulation and stipulation requirement.
When testing table detects the gear train transmission performance, the driving mechanism of testing table drives input end with the gear train that installation fixes and need be connected, difference due to different product model structure, and the difference of same model contour structures, mismachining tolerance etc., the factors such as difference of the specimen frock clamp of testing table cause when driving connection, be difficult to the problem that warranty test platform drive output and test block drive the input end right alignment, cause out-of-alignment to drive and produce extra abnormal sound and noise, resistive torque increases, and drives the problems such as rotating speed is not high.
Common ways of addressing this issue is to adopt spring coupling to be connected with universal joint to connect driving at present.Connect driving by spring coupling or universal joint mode, drive the out-of-alignment problem although can solve, the noise that causes is large, drives rotating speed not high.During test, frock clamp is complicated, and installing to adjust wastes time and energy.
Summary of the invention
Large in order to solve the noise that has the existence of testing table driving mechanism now, drive rotating speed not high; During test, frock clamp is complicated, installs and adjusts the problem that wastes time and energy, and the invention provides a kind of testing table driving mechanism and be connected drive disk assembly by interior male splined shaft connection, and the driving mechanism for automatic coaxial experiment test of automobile transmission component with floatability.
The technical solution that realizes above-mentioned purpose is as follows:
Driving mechanism for automatic coaxial experiment test of automobile transmission component is included as the frame 1 of worktable shape, frame 1 inner bottom part is provided with variable-frequency motor 2, it is outside that the output shaft of variable-frequency motor 2 extends frame 1 one sides, be laid with three bearing seats 5 on frame 1 end face length direction, and three bearing seats 5 point-blank; Be provided with driving shaft 7 by bearing on a bearing seat 5 of frame 1 one sides; The outer end of driving shaft 7 is parallel corresponding with the overhanging end of variable-frequency motor 2 output shafts, be respectively equipped with synchronous pulley B6 and synchronous pulley A3 on the outer end of driving shaft 7 and on the overhanging end of variable-frequency motor 2 output shafts, synchronous pulley B6 and synchronous pulley A3 are upper across being provided with Timing Belt A4; Be provided with output shaft 14 by bearing on another two bearing seats 5, the inner of driving shaft 7 is inner coaxial corresponding with output shaft 14, be respectively equipped with plum-blossom type elastic coupling on the inner of driving shaft 7 and on the inner of output shaft 14, frame 1 end face between the plum-blossom type elastic coupling of two correspondences is provided with sensor support base 12, sensor support base 12 is provided with torque sensor 13, and the two ends of torque sensor 13 are connecting respectively plum-blossom type elastic coupling on driving shaft 7 and the plum-blossom type elastic coupling on output shaft 14;
Be provided with driving arm 16 in the middle part of frame 1 end face, driving arm 16 is column, and its end face one side is provided with master cylinder 17, and master cylinder 17 is adjacent with output shaft 14, and the end face opposite side is provided with upright support stationary shaft 18;
Described output shaft 14 is provided with and drives spline joint axle sleeve A33, an end that drives spline joint axle sleeve 33 is provided with active synchronization belt wheel C32.1, be provided with by bearing 15 on the other end and drive spline joint seat 31, drive spline joint seat 31 and connecting an end that drives web joint 25, the other end that drives web joint 25 is connecting an end that supports cylinder frame 22, and the bottom of supporting cylinder frame 22 offers chute; Support the below correspondence of cylinder frame 22 and upright support stationary shaft 18; The piston rod of described master cylinder 17 is connecting the middle part that drives web joint 25; Supporting to be provided with in cylinder frame 22 driving push-and-pull axle sleeve 24, is little clearance fit between the external cylindrical surface of driving push-and-pull axle sleeve 24 and the inner cylinder face of support cylinder frame 22, and both are relative sliding axially; The bottom that drives push-and-pull axle sleeve 24 offers chute; The other end that supports cylinder frame 22 is fixed with cylinder mounting plate 19, the lateral surface of cylinder mounting plate 19 is fixed with stingy cylinder 20, the piston rod of stingy cylinder 20 extends and drives in push-and-pull axle sleeve 24, the piston rod of stingy cylinder 20 is connecting by flexible web joint 21 end that drives push-and-pull axle sleeve 24, drive in push-and-pull axle sleeve 24 and be provided with horizontal supporting shaft 23, horizontal supporting shaft 23 can slide in driving push-and-pull axle sleeve 24 to axial, and the other end that drives push-and-pull axle sleeve 24 is provided with stepped hole; Be provided with block 26 in the stepped hole of driving push-and-pull axle sleeve 24, block 26 is threaded connection part and is connecting an end that drives spline joint axle sleeve B28, be fixed with input spline housing 27 in the other end of driving spline joint axle sleeve B28, drive on spline joint axle B28 and be arranged with driven synchronous pulley C32.2; Driven synchronous pulley C32.2 and active synchronization belt wheel C32.1 are upper across being provided with Timing Belt B29; Horizontal supporting shaft 23 is Step Shaft, its smaller diameter end is passed block 26 and is positioned at the other end that drives spline joint axle sleeve 28, and the upper end of supporting stationary shaft 18 is passed the chute that drives push-and-pull axle sleeve 24 and be connected cylinder frame 22 bottoms and connected in the middle part of the larger diameter end of horizontal supporting shaft 23.
The outer circumference surface of described driving spline joint axle sleeve A33 is step surface, and the minor diameter outer circumference surface is connecting driving spline joint seat 31, and the major diameter outer circumference surface is connecting active synchronization belt wheel C32.1.
Described support stationary shaft 18 is Step Shaft, and top is smaller diameter end, is connecting the larger diameter end middle part of horizontal supporting shaft 23 by bearing pin, and the bottom is larger diameter end.
The piston rod of described master cylinder 17 is connecting the middle part that drives web joint 25 by coupling shaft 30.
Described horizontal supporting shaft 23 is Step Shaft, and major diameter one side is connected with supporting stationary shaft 18 by bearing pin, and smaller diameter end is passed block 26 and extended the connection of driving spline joint axle sleeve B28 internal clearance; Be little clearance fit between the inner cylinder face of driving push-and-pull axle sleeve 24 and the major diameter external cylindrical surface of horizontal supporting shaft 23.
The external cylindrical surface of described driving spline joint axle sleeve B28 is step-like external cylindrical surface, is being set with driven synchronous pulley C32.2 on its major diameter external cylindrical surface, and the minor diameter end face is being connected by screw block 26, and minor diameter one side is inserted into and drives in push-and-pull axle sleeve 24; The inner cylinder face of moving spline joint axle sleeve B28 is step-like inner cylinder face, the minor diameter external cylindrical surface clearance fit of its minor diameter inner cylinder face and horizontal supporting shaft 23, and both are relative sliding axially; The major diameter inner cylinder face of moving spline joint axle sleeve B28 is connected by screw with input spline housing 27, is connected with test component 34 during described input spline housing 27 work.
Useful technique effect of the present invention embodies in the following areas:
1, the present invention has solved the different shaft-driven problems of rotary actuation master driven axle initiatively;
2, this driving mechanism makes and drives the strong noise that disalignment causes and significantly reduce;
3, the damage that the invention enables tested parts to produce because disalignment drives disappears;
4, the invention enables high-power, high rotating speed to drive tested parts easily realizes;
5, applied range of the present invention can be applied in the driving of all motor-driven machine drive disk assembly rotating property tests in theory.
Description of drawings
Fig. 1 is the axle survey views such as structure of the present invention.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the A-A cut-open view of Fig. 3.
Fig. 5 is the B-B cut-open view of Fig. 2.
Fig. 6 is the C-C cut-open view of Fig. 2.
Fig. 7 is the I partial view (position 1) of Fig. 2.
Fig. 8 is the I partial view (position 2) of Fig. 2.
Fig. 9 is the I partial view (position 3) of Fig. 2.
Figure 10 is the I partial view (position 4) of Fig. 2.
Figure 11 is the I partial view (position 5) of Fig. 2.
Component serial number title such as following table in upper figure:
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is done to describe further.
Embodiment:
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, driving mechanism for automatic coaxial experiment test of automobile transmission component comprises frame 1, frame 1 is the worktable shape, its inner bottom part is equipped with variable-frequency motor 2, it is outside that the output shaft of variable-frequency motor 2 extends frame 1 one sides, uniform on frame 1 end face length direction three bearing seats 5 are installed, and three bearing seats 5 point-blank; By bearing, driving shaft 7 is installed on a bearing seat of frame 1 one sides; The outer end of driving shaft 7 is parallel corresponding with the overhanging end of variable-frequency motor 2 output shafts, be separately installed with synchronous pulley B6 and synchronous pulley A3 on the outer end of driving shaft 7 and on the overhanging end of variable-frequency motor 2 output shafts, the upper straddle mounting of synchronous pulley B6 and synchronous pulley A3 has Timing Belt A4, on the driving shaft 7 between synchronous pulley B6 and adjacent shaft bearing 5, spacer 8 is housed; By bearing, output shaft 14 is installed on another two bearing seats, the inner of driving shaft 7 is inner coaxial corresponding with output shaft 14, be separately installed with plum-blossom type elastic coupling 11 on the inner of driving shaft 7 and on the inner of output shaft 14, on frame 1 end face between the plum-blossom type elastic coupling of two correspondences, sensor support base 12 is installed, torque sensor 13 is installed on sensor support base 12, and the two ends of torque sensor 13 are connecting respectively plum-blossom type elastic coupling on driving shaft 7 and the plum-blossom type elastic coupling on output shaft 14.
In the middle part of frame 1 end face, driving arm 16 is installed, driving arm 16 is column, and its end face one side is equipped with master cylinder 17, and master cylinder 17 is adjacent with output shaft 14, and the end face opposite side is equipped with upright support stationary shaft 18.
Referring to Fig. 5, Fig. 6 and Fig. 7-1, be equipped with on output shaft 14 and drive spline joint axle sleeve A33, the outer circumference surface that drives spline joint axle sleeve A33 is the step face of cylinder, and the minor diameter external cylindrical surface is connecting driving spline joint seat 31, and the major diameter outer circumference surface is connecting active synchronization belt wheel C32.1; Drive spline joint seat 31 and connecting an end that drives web joint 25, the other end that drives web joint 25 is connecting an end that supports cylinder frame 22, and the bottom of supporting cylinder frame 22 offers chute; Support the below correspondence of cylinder frame 22 and upright support stationary shaft 18.The piston rod of master cylinder 17 is connecting the middle part that drives web joint 25 by master cylinder coupling shaft 30.Supporting to be equipped with in cylinder frame 22 driving push-and-pull axle sleeve 24, is little clearance fit between the external cylindrical surface of driving push-and-pull axle sleeve 24 and the inner cylinder face of support cylinder frame 22, and both are relative sliding axially.The bottom that drives push-and-pull axle sleeve 24 offers chute; The other end that supports cylinder frame 22 fixedly is equipped with cylinder mounting plate 19, the lateral surface of cylinder mounting plate 19 is installed with stingy cylinder 20, the piston rod of stingy cylinder 20 extends and drives in push-and-pull axle sleeve 24, the piston rod of stingy cylinder 20 is connecting by flexible web joint 21 end that drives push-and-pull axle sleeve 24, drive in push-and-pull axle sleeve 24 horizontal supporting shaft 23 is housed, horizontal supporting shaft 23 can slide in driving push-and-pull axle sleeve 24 to axial.Supporting stationary shaft 18 is Step Shaft, and top is smaller diameter end, and the bottom is larger diameter end.Horizontal supporting shaft 23 is Step Shaft, its major diameter one side by bearing pin with pass the smaller diameter end of support stationary shaft 18 that drives push-and-pull axle sleeve 24 and is connected the chute of cylinder frame 22 bottoms and be connected, its smaller diameter end is passed block 26 and is extended the connection of driving spline joint axle sleeve B28 internal clearance; Be little clearance fit between the inner cylinder face of driving push-and-pull axle sleeve 24 and the major diameter external cylindrical surface of horizontal supporting shaft 23.The other end that drives push-and-pull axle sleeve 24 offers stepped hole; In the stepped hole of driving push-and-pull axle sleeve 24, block 26 is housed; The external cylindrical surface that drives spline joint axle sleeve B28 is step-like external cylindrical surface, is being set with driven synchronous pulley C32.2 on its major diameter external cylindrical surface, and the minor diameter end face is being connected by screw block 26, and minor diameter one side is inserted into and drives in push-and-pull axle sleeve 24; The inner cylinder face that drives spline joint axle sleeve B28 is step-like inner cylinder face, the minor diameter external cylindrical surface clearance fit of its minor diameter inner cylinder face and horizontal supporting shaft 23, and both are relative sliding axially; The major diameter inner cylinder face that drives spline joint axle sleeve B28 is connected by screw with input spline housing 27, is connected with test component during described input spline housing 27 work.The upper straddle mounting of driven synchronous pulley C32.2 and active synchronization belt wheel C32.1 has Timing Belt B29.
Principle of work of the present invention is as follows:
Referring to Fig. 7, testing table is in initial stationary state.At this moment, the piston rod of master cylinder 17 and stingy cylinder 20 is in retracted mode, and test component 34 is installed fixed, waits detection to be driven.
Referring to Fig. 8, open variable-frequency motor 2, drive input spline housing 27 and rotate with 30r/min, at this moment, stingy cylinder 20 piston rods stretch out fully, and the state of putting in place advances.
Referring to Fig. 9, at this moment, master cylinder 17 piston rods stretch out fully, the state of putting in place that advances, and driving input spline housing 27 is connected with test component 34 to be completed.
Referring to Figure 10, at this moment, stingy cylinder 20 piston rod slow astern half trips, avoid rotatable parts block 26 and drive spline joint axle sleeve B 28 occuring with the friction that stationary parts drives push-and-pull axle sleeve 24, testing table drives test component 34 with the speed curves that sets, on-test, but test resistance moment of torsion, the rotatable parts assembly quality problems such as noise and abnormal sound.
Referring to Figure 11, the operation of testing experiment speed curves is complete, off-test, and variable-frequency motor stops operating, and at this moment, stingy cylinder 20 piston rods are retracted fully.
During off-test, master cylinder 17 piston rods are fully retracted to the position, break away from fully with test component 34, and testing table is in static original state, sees Fig. 1.
Claims (6)
1. driving mechanism for automatic coaxial experiment test of automobile transmission component, it is characterized in that: comprise frame (1), frame (1) is the worktable shape, its inner bottom part is provided with variable-frequency motor (2), it is outside that the output shaft of variable-frequency motor (2) extends frame (1) one side, be laid with three bearing seats (5) on frame (1) end face length direction, and three bearing seats (5) point-blank, a bearing seat (5) of frame (1) one side is upper is provided with driving shaft (7) by bearing, the outer end of driving shaft (7) is parallel corresponding with the overhanging end of variable-frequency motor (2) output shaft, be respectively equipped with synchronous pulley B(6 on the outer end of driving shaft (7) and on the overhanging end of variable-frequency motor (2) output shaft) and synchronous pulley A(3), synchronous pulley B(6) and synchronous pulley A(3) upper across being provided with Timing Belt A(4), another two bearing seats (5) are upper is provided with output shaft (14) by bearing, the inner of driving shaft (7) is inner coaxial corresponding with output shaft (14), be respectively equipped with plum-blossom type elastic coupling on the inner of driving shaft (7) and on the inner of output shaft (14), frame between the plum-blossom type elastic coupling of two correspondences (1) end face is provided with sensor support base (12), sensor support base (12) is provided with torque sensor (13), the two ends of torque sensor (13) are connecting respectively plum-blossom type elastic coupling on driving shaft (7) and the plum-blossom type elastic coupling on output shaft (14),
Frame (1) end face middle part is provided with driving arm (16), and driving arm (16) is column, and its end face one side is provided with master cylinder (17), and master cylinder (17) is adjacent with output shaft (14), and the end face opposite side is provided with upright support stationary shaft (18);
Described output shaft (14) is provided with and drives spline joint axle sleeve A(33), an end that drives spline joint axle sleeve (33) is provided with active synchronization belt wheel C(32.1), be provided with by bearing (15) on the other end and drive spline joint seat (31), drive the end that spline joint seat (31) is connecting driving web joint (25), the other end that drives web joint (25) is connecting an end of support cylinder frame (22), and the bottom of supporting cylinder frame (22) offers chute; Support the below correspondence of cylinder frame (22) and upright support stationary shaft (18); The piston rod of described master cylinder (17) is connecting the middle part of driving web joint (25); Supporting to be provided with in cylinder frame (22) driving push-and-pull axle sleeve (24), is little clearance fit between the inner cylinder face of the external cylindrical surface of driving push-and-pull axle sleeve (24) and support cylinder frame (22), and both are relative sliding axially; The bottom that drives push-and-pull axle sleeve (24) offers chute; The other end that supports cylinder frame (22) is fixed with cylinder mounting plate (19), the lateral surface of cylinder mounting plate (19) is fixed with little cylinder (20), the piston rod of little cylinder (20) extends and drives in push-and-pull axle sleeve (24), the piston rod of little cylinder (20) is connecting an end of driving push-and-pull axle sleeve (24) by flexible web joint (21), drive in push-and-pull axle sleeve (24) and be provided with horizontal supporting shaft (23), horizontal supporting shaft (23) can slide in driving push-and-pull axle sleeve (24) to axial, and the other end that drives push-and-pull axle sleeve (24) is provided with stepped hole; Be provided with block (26) in the stepped hole of driving push-and-pull axle sleeve (24), block (26) is threaded connection part and is connecting driving spline joint axle sleeve B(28) an end, drive spline joint axle sleeve B(28) the other end in be fixed with input spline housing (27), drive spline joint axle B(28) on be arranged with driven synchronous pulley D(32.2); Driven synchronous pulley D(32.2) and active synchronization belt wheel C(32.1) upper across being provided with Timing Belt B(29); Horizontal supporting shaft (23) is Step Shaft, its smaller diameter end is passed block (26) and is positioned at the other end that drives spline joint axle sleeve (28), and the upper end of supporting stationary shaft (18) is passed the chute that drives push-and-pull axle sleeve (24) and is connected bottom cylinder frame (22) and connected in the middle part of the larger diameter end of horizontal supporting shaft (23).
2. driving mechanism for automatic coaxial experiment test of automobile transmission component according to claim 1, it is characterized in that: outer circumference surface described driving spline joint axle sleeve A(33) is step surface, the minor diameter outer circumference surface is connecting driving spline joint seat (31), and the major diameter outer circumference surface is connecting active synchronization belt wheel C(32.1).
3. driving mechanism for automatic coaxial experiment test of automobile transmission component according to claim 1, it is characterized in that: described support stationary shaft (18) is Step Shaft, top is smaller diameter end, is connecting the larger diameter end middle part of horizontal supporting shaft (23) by bearing pin, and the bottom is larger diameter end.
4. driving mechanism for automatic coaxial experiment test of automobile transmission component according to claim 1, it is characterized in that: the piston rod of described master cylinder (17) is connecting the middle part of driving web joint (25) by master cylinder coupling shaft (30).
5. driving mechanism for automatic coaxial experiment test of automobile transmission component according to claim 1, it is characterized in that: described horizontal supporting shaft (23) is Step Shaft, major diameter one side is connected with support stationary shaft (18) by bearing pin, and smaller diameter end is passed block (26) and extended driving spline joint axle sleeve B(28) the internal clearance connection; Be little clearance fit between the inner cylinder face of driving push-and-pull axle sleeve (24) and the major diameter external cylindrical surface of horizontal supporting shaft (23).
6. driving mechanism for automatic coaxial experiment test of automobile transmission component according to claim 5, it is characterized in that: external cylindrical surface described driving spline joint axle sleeve B(28) is step-like external cylindrical surface, be set with driven synchronous pulley D(32.2 on its major diameter external cylindrical surface), the minor diameter end face is being connected by screw block (26), and minor diameter one side is inserted into and drives in push-and-pull axle sleeve (24); Driving spline joint axle sleeve B(28) inner cylinder face is step-like inner cylinder face, the minor diameter external cylindrical surface clearance fit of its minor diameter inner cylinder face and horizontal supporting shaft (23), and both are relative sliding axially; Driving spline joint axle sleeve B(28) major diameter inner cylinder face is connected by screw with input spline housing (27), is connected with test component (34) during described input spline housing (27) work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110238317 CN102359883B (en) | 2011-08-19 | 2011-08-19 | Driving mechanism for automatic coaxial experiment test of automobile transmission component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110238317 CN102359883B (en) | 2011-08-19 | 2011-08-19 | Driving mechanism for automatic coaxial experiment test of automobile transmission component |
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| Publication Number | Publication Date |
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| CN102359883A CN102359883A (en) | 2012-02-22 |
| CN102359883B true CN102359883B (en) | 2013-05-15 |
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| CN 201110238317 Expired - Fee Related CN102359883B (en) | 2011-08-19 | 2011-08-19 | Driving mechanism for automatic coaxial experiment test of automobile transmission component |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102607854A (en) * | 2012-03-16 | 2012-07-25 | 宁波市龙嘉摩托车有限公司 | Running-in method of motorcycle engine and running-in device |
| CN108663147B (en) * | 2012-10-12 | 2023-05-12 | 国际计测器株式会社 | Torque applying unit, driving device, and tire testing device |
| CN111879543A (en) * | 2020-08-04 | 2020-11-03 | 齐鲁工业大学 | Embedded controller test bed of corn harvester returning machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871845A (en) * | 2010-02-01 | 2010-10-27 | 华东交通大学 | Undetached measurement device and method for transmission efficiency of automotive transmission system |
| CN201828409U (en) * | 2009-11-23 | 2011-05-11 | 浙江大学 | Combination property compound test equipment of motor vehicle |
| CN202221375U (en) * | 2011-08-19 | 2012-05-16 | 安徽和均自动化装备有限公司 | Driving mechanism used for testing automobile transmission part and capable of realizing automatic axial alignment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8240197B2 (en) * | 2008-09-08 | 2012-08-14 | Burke E. Porter Machinery Company | Vehicle brake testing assembly |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828409U (en) * | 2009-11-23 | 2011-05-11 | 浙江大学 | Combination property compound test equipment of motor vehicle |
| CN101871845A (en) * | 2010-02-01 | 2010-10-27 | 华东交通大学 | Undetached measurement device and method for transmission efficiency of automotive transmission system |
| CN202221375U (en) * | 2011-08-19 | 2012-05-16 | 安徽和均自动化装备有限公司 | Driving mechanism used for testing automobile transmission part and capable of realizing automatic axial alignment |
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Address after: 231100 Anhui province Changfeng County Gang Ji Zhen Jin Gang Bei Lu Applicant after: Anhui Hejun Automation Equipment Co., Ltd. Address before: Yaohai District of Hefei City, Anhui province 230011 100 help business park No. 6 Applicant before: Anhui Hejun Automation Equipment Co., Ltd. |
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