CN107014624A - One kind contracting is than friction material inertia bench - Google Patents
One kind contracting is than friction material inertia bench Download PDFInfo
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- CN107014624A CN107014624A CN201710450347.XA CN201710450347A CN107014624A CN 107014624 A CN107014624 A CN 107014624A CN 201710450347 A CN201710450347 A CN 201710450347A CN 107014624 A CN107014624 A CN 107014624A
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- 239000002783 friction material Substances 0.000 title claims abstract description 31
- 238000012360 testing method Methods 0.000 claims abstract description 91
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract 4
- 238000002474 experimental method Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 5
- 238000009666 routine test Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000003908 quality control method Methods 0.000 abstract description 3
- 238000010998 test method Methods 0.000 abstract description 2
- 238000009472 formulation Methods 0.000 abstract 1
- 238000012372 quality testing Methods 0.000 abstract 1
- 238000012827 research and development Methods 0.000 abstract 1
- 238000004088 simulation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The present invention relates to one kind contracting than friction material inertia bench, more particularly to one kind is with contracting ratio 1 substantially:5 determine the scaled down version friction material inertia bench of important technological parameters.It is 2 × 10cm to pushing up special caliper, 2 test blocks, test block area using twin-tub2.Friction pair disk size is 148 × Φ of Φ, 50 × 8.5mm.Stand is by main frame (1), shaft coupling (2), Ultra-Low Speed drive device (3), left shaft holder (4), main shaft (5), flywheel group (6), wireless temperature measuring device (7), right axle bearing (8), caliper (9), caliper installation set (10), measuring arm of force (11), friction pair disk (12), support (13), brake pressure generator (14) and TT＆C system composition.This contracting ratio table can use 1:1 inertia bench identical test method, its result of the test and 1:1 stand has excellent comparativity and uniformity, and simply, it is economical, it is to substitute existing little sample testing machine fast, for friction material formulation research and development, quality control, the ideal equipment of quality testing.
Description
Technical field
The invention belongs to a kind of contracting suitable for friction material than inertia bench, the function with simulation actual condition, its
Result of the test has good comparativity with full-scale assembly testing bench, is applicable friction material raw material and Formula Development, quality control
And basic research, the characteristics of possessing simple, economic, quick.It is the preferable type for substituting existing constant speed formula friction material test machine.
Background technology
Friction material (brake facing) is the particularly important safety member of automobile.In friction material exploitation and production process
In, it is necessary to carry out substantial amounts of performance test and appraisal.
Friction (braking) method for testing performance is divided into two major classes：Examination that simulation actual condition is tested and constant speed (constant temperature) is dawdled
Test；The former can simulate actual condition, have very high comparativity with complete vehicle test result, can as performances evaluation foundation；
And the test method that constant speed (constant temperature) is dawdled, due to not possessing the condition of simulation operating mode, result of the test is mutually gone very with complete vehicle test
Far, progressively it is eliminated.
Friction (braking) performance test mode is divided into assembly experiment and little sample testing again；Assembly experimentation cost is high, and time-consuming；
And the little sample testing (subscale test) of assembly operating condition of test can be simulated, testing cost, Speeding up development progress can be reduced.
Friction Materials and production, be badly in need of it is a kind of can simulate actual condition, accurate, quick and economic experiment is set
It is standby.
The content of the invention
The present invention is directed to the shortcoming and 1 of existing various friction material little sample testing machines:The advantage of 1 inertia bench, with similar
Based on theory, a kind of friction material inertia bench of contracting ratio is developed.
With reference to the accompanying drawings, it is described as follows：
One kind contracting is than friction material inertia bench, mainly by main motor 1, shaft coupling 2, Ultra-Low Speed drive device 3, left bearing
Seat 4, main shaft 5, flywheel group 6, wireless temperature measuring device 7, right axle bearing 8, caliper 9, caliper installation set 10, annular measuring arm of force
27, friction pair disk 12, support 13, pressure generator 14 and TT＆C system are constituted；
Described motor 1 is connected installed in plane one end on support 13 and with main shaft 5, and the other end of main shaft 5 is equipped with friction pair
Even disk 12；Convex shoulder is machined with the middle of main shaft 5, for installing inertial flywheel group 6, the main shaft 5 passes through left shaft holder 4, right bearing
Seat 8 is supported；
Described annular measuring arm of force 27 is arranged between outward flange 28 and caliper installation set 10, three's connection fastening, ring
One end of shape measuring arm of force 27 is equipped with force snesor 29, and is connected with the sensor support base 30 being fixed on support 13；
Described caliper 9 is arranged in caliper installation set 10, by left caliper 15, right caliper body 16, double-piston 17, test specimen
Folder 18 is constituted, and described double-piston 17 is separately mounted to left caliper 15, inside right caliper body 16, is tested friction material mounted in test specimen folder
On 18, the both sides for being inserted into braking clamp body and being arranged on friction pair disk 12 are pressed from both sides with test specimen；Pressure generator 14 is arranged on support
13 lower planes, by oil pipe by pressure transmission to caliper 9, the double-piston 17 in caliper promotes the friction examination in test specimen folder 18
Block, grip friction antithesis disk 12, so as to produce frictional force brakes；
Described wireless temperature measuring device 7, on the left side of outward flange 28 and main shaft 5, for measuring friction pair disk
12 temperature；
Described sprocket wheel 24 can axially be moved left and right along main shaft 5, by the way that chain is by sprocket wheel 24 and to be fixed on support 13 time flat
The Ultra-Low Speed drive device 3 in face is connected, and realizes main shaft and the clutch of Ultra-Low Speed drive device 3；
Above-mentioned contracting is to be based on the theory of similarity than friction material inertia bench, and to test style friction area as car disc type
Basic design parameters of the 1/5 of the friction area of friction plate as contracting than friction material inertia bench.
Demarcate bar 11 is additionally provided with described annular measuring arm of force 27, scale pan is housed in tail end, for force snesor 29
Demarcation.
Described pressure generator 14 is passed by servomotor 19, timing belt 20, ball-screw 21, master cylinder 22 and pressure
Sensor 23 is constituted, and pressure generator 14 is used to produce the hydraulic coupling needed for braking.
The outward flange 28 is machined with seam with the inner side of caliper installation set 10, the positioning for annular measuring arm of force 27.
The motor 1 is connected by shaft coupling 2 with main shaft 5, when doing Ultra-Low Speed experiment, and described sprocket wheel 24 is moved to left simultaneously
It is sleeved on the right-hand member seam of shaft coupling 2 and fixed, by chain by sprocket wheel 24 and the Ultra-Low Speed for being fixed on the lower plane of support 13
Drive device 3 is connected, and at this moment main motor 1 does not work, and is tested by the drive shaft 5 of Ultra-Low Speed drive device 3；Doing conventional examination
When testing, sprocket wheel 24 is moved to right and is fixed on the left side flange 25 of left shaft holder 4, realizes that main shaft 5 is separated with Ultra-Low Speed drive device 3,
At this moment the drive shaft 5 of main motor 1 is tested, and ultralow speed variator 3 does not work.
Beneficial effect：The present invention, carefully have studied 1:On the basis of the characteristics of 1 assembly is tested, a kind of contracting is released than used
Property testing stand, compared with existing same category of device, there is following characteristics：
1st, the input such as braking inertia, braking moment, brake pressure, retro-speed necessary to possessing brake assembly experiment
And control condition；
2nd, in strict accordance with 1:5 contracting ratio, calculates subscale test parameter, and then determine that contracting is joined than the technology of inertial test table
Number；
3rd, using caliper brake structure is determined, possess and test identical brake pressure load mode with assembly；
4th, test block is intercepted from product, keeps its authenticity；
5th, unified brake and brake disc, eliminate in assembly experiment different braking device and brake disc to result of the test
Influence；
6th, possess and test identical test specification and data processing method with full-scale assembly, it is ensured that the weight of both data
Existing property.
The contracting of this new construction than inertial test table be particularly suitable for use in for the basic research of friction material, product development and
Production process quality control.
Brief description of the drawings
Fig. 1 is contracting ratio table structure chart；
Fig. 2 is Fig. 1 right view；
Fig. 3 is main axle structure figure；
Fig. 4 is annular measuring arm of force structure chart；
Fig. 5 is Fig. 4 top view；
Fig. 6 is caliper structure chart；
Fig. 7 is Fig. 6 left view；
Fig. 8 is test specimen clamping structure figure；
Fig. 9 is Fig. 8 left view；
Figure 10 is friction pair dish structure figure；
Figure 11 is Figure 10 sectional view；
Figure 12 is flywheel carrier structure figure；
Figure 13 is Figure 12 left view；
Figure 14 is pressure generator structure chart；
Wherein：In figure：1st, main motor 2, shaft coupling 3, Ultra-Low Speed drive device 4, left shaft holder 5, main shaft 6, flywheel
Group 7, wireless temperature measuring device 8, right axle bearing 9, caliper 10, caliper installation set 11, demarcate bar 12, friction pair disk
13rd, support 14, pressure generator 15, left caliper 16, right caliper body 17, double-piston 18, test specimen folder 19, servomotor 20,
Timing belt 21, ball-screw 22, master cylinder 23, pressure sensor 24, sprocket wheel 25, end cap 26 on the left of left shaft holder,
Flywheel bracket 27, annular measuring arm of force 28, outward flange 29, force snesor 30, sensor support base
Embodiment
Furtherly describe the bright present invention in detail below by way of specific embodiment
One kind contracting is than friction material inertia bench, mainly by main motor 1, the Ultra-Low Speed drive device 3 of shaft coupling 2, left bearing
Seat 4, main shaft 5, flywheel group 6, wireless temperature measuring device 7, right axle bearing 8, caliper 9, caliper installation set 10, annular measuring arm of force
27, friction pair disk 12, support 13, pressure generator 14 and TT＆C system are constituted.
Described motor 1, is alternating-current variable frequency motor, the plane left end on support 13, by shaft coupling 2 with passing through a left side
The main shaft 5 that bearing block 4, right axle bearing 8 are supported is connected.
Described main shaft 5, centre is machined with convex shoulder, for installing inertial flywheel group 6.The right-hand member of main shaft 5 is equipped with friction pair
Disk 12, its appearance and size is 148 × Φ of Φ, 50 × 8.5mm.
Described flywheel group 6, is made up of multiple flywheels, is fixed between flywheel with screw attachment, is not involved in the flywheel of experiment,
Pull down after mounting screw, flywheel is axially moveable, be screwed on the flywheel bracket 26 on support, separated with main shaft 5.
Described sprocket wheel 24, can be moved left and right vertically, realize main shaft and the clutch of Ultra-Low Speed drive device 3.Contracting ratio table
When doing ultralow speed test, sprocket wheel 24 is moved to left and is sleeved on the right-hand member seam of shaft coupling 2, and is fixed sprocket wheel with screw
On shaft coupling right side, sprocket wheel 24 is connected with being fixed on the Ultra-Low Speed drive device 3 of the lower plane of support 13 by chain, this
When main motor 1 do not work, tested by the drive shaft 5 of Ultra-Low Speed drive device 3.When doing routine test, sprocket wheel 24 is moved to right
And be fixed on jackscrew on the left of left shaft holder on flange 25, realize that main shaft 5 is separated with Ultra-Low Speed drive device 3, at this moment main motor 1
Drive shaft 5 is tested, and ultralow speed variator 3 does not work.
Described annular measuring arm of force 27, is semi-circular, between outward flange 28 and caliper installation set 10, San Zhetong
Screw attachment fastening is crossed, outward flange 28 is machined with seam with the inner side of caliper installation set 10, the positioning for annular measuring arm of force 27.
One end of annular measuring arm of force 27 is equipped with force snesor 29, and is connected with the sensor support base 30 being fixed on support 13.Simulate vapour
When car is braked, the work of pressure generator 14 produces pressure (pressure generator patent No. ZL201120020934.3), passes through oil pipe
Pass to double-piston 17 in caliper 9, caliper and promote friction test block in test specimen folder 18, grip friction antithesis disk 12, so that
Frictional force is produced, main shaft 5 is slowed down or even is stopped operating.Because the effect of power is mutual, caliper 9 is to friction pair disk 12
Produce frictional force while, friction pair disk 12 can give caliper 9 one opposite forces, this power by caliper installation set 10,
Measuring arm of force 27 passes to force snesor 29, and measuring system records parameter needed for the items of the process.
Described demarcate bar 11, on annular measuring arm of force, scale pan, the mark for force snesor 29 are equipped with tail end
It is fixed.
Described caliper 9 is patented：A kind of double cylinder brake clamps ZL201520705728.4, by left caliper 15, the right side
Caliper 16, double-piston 17, test specimen folder 18 are constituted.Caliper 9 is arranged on the caliper installation set 10 on the race bearing of right axle bearing 8
On.
Described double-piston 17, is two a diameter of Φ 25.4mm piston, is separately mounted to left caliper 15, right caliper body 16
Inside, is distributed in the both sides of brake disc 12.
Described friction material test block is two pieces, 25mm*40mm reference block, on test specimen folder 18, test specimen folder 18
On caliper 9, test block allows 8~18mm of thickness, directly can be cut into from the brake block with backboard.
Described wireless temperature measuring device 7, on the left side of outward flange 28 and main shaft 5, for measuring friction pair disk
12 temperature.
Described pressure generator 14 is patented：A kind of electric servo control push rod, the patent No.
ZL201120020934.3, by 23 groups of servomotor 19, timing belt 20, ball-screw 21, master cylinder 22 and pressure sensor
Into.Pressure generator 14 is used to produce the hydraulic coupling needed for braking.
The structure and working principle of contracting ratio table
1st, operation principle
The testing stand can complete routine test and Ultra-Low Speed experiment, and the inertia value according to needed for operating condition of test matches flywheel
Group (6) flywheel quantity.
When testing stand carries out routine test, control system sends instruction, the drive shaft 5 of motor 1, flywheel group 6, friction pair
The shafting associated parts such as even disk 12 are rotated up to rotating speed needed for simulation speed.When simulated automotive is braked, the work production of pressure generator 14
Raw pressure, the double-piston 17 passed to by oil pipe in caliper 9, caliper promotes test specimen to press from both sides the friction test block in 18, and clamping rubs
Antithesis disk 12 is wiped, so as to produce frictional force, main shaft 5 is slowed down or even is stopped operating.Because the effect of power is mutual, caliper
While 9 pairs of friction pair disks 12 produce frictional force, friction pair disk 12 can give caliper 9 one opposite forces, and this power passes through
Caliper installation set 10, measuring arm of force 27 pass to force snesor 29, and measuring system records parameter needed for the items of the process.
When testing stand carries out Ultra-Low Speed experiment, main shaft 5 is driven by chain with being fixed on the Ultra-Low Speed of the lower plane of support 13
Dynamic device 3 is connected, and at this moment main motor 1 does not work.Control system sends instruction, and caliper 9 clamps brake disc 12, starts Ultra-Low Speed
Drive device 3 makes main shaft slowly be changed into rotating from static, and measuring system record is by the static items that this process is rotated to
Required parameter.
2nd, contracting ratio is determined
In tribological field, numerous studies show：The friction area contracting of subscale test is more proper than for 1/4~1/10.
For Automotive Friction Material subscale test：Friction area in view of car disk brake pad is generally 30~60cm2, it is existing
Little sample testing machine such as, constant speed sample for testing machine size (25 × 25mm), Chase sample for testing machine friction area (about 6.45cm2),
Therefore determine that subscale test style friction area is the 1/5 of actual style friction area, it is used as the Basic Design of subscale test machine to join
Number.It is also the core that the present invention is designed.
Principle is compared according to the contracting of the parameter of the principle of similitude, it may be determined that the contracting ratio of the geometric sense of first power, such as friction radius is
1/51/2。
To ensure subscale test and 1:1 experiment has comparativity, also to ensure effect of the main parameters in subscale test
With 1:1 experiment has uniformity.The test simulation criterion of this namely subscale test.
According to the principle of similitude, the principle of similarity by geometry is similar, kinematic similarity, dynamical phase determines friction material
Material subscale test test simulation principle be specially：
There is friction pair form and material uniformity, physical dimension proportionate relationship (to determine the several of the first powers such as friction radius
Any quantity contracting ratio)；
Linear velocity, braking deceleration at friction radius is equal (determining speed of mainshaft contracting ratio)；
Rubbing surface work is than pressing equal (determining brake pressure contracting ratio)；
Friction temperature heating and cooling mode and temperature changing process are identical (determining cooling system structure and parameter)；
The unit friction work (rate) that friction material unit area undertakes is equal (determining rotary inertia contracting ratio)；
The thermic load that friction brake disk unit volume undertakes is equal (providing foundation for the design of brake disc dimensional structure).
According to above-mentioned test simulation principle, it may be determined that the contracting ratio of other physical quantitys, so as to be the design of subscale test machine
Foundation is provided.
During subscale test, by the parameter of certain vehicle, by above-mentioned contracting ratiometric conversion into experiment parameter.And Adjustment Tests machine
Test parameters, such as adjusts brake system pressure, inertia configuration, the speed of mainshaft.It is more real than after conversion by the contracting of a certain vehicle parameter
Test parameter as shown in table 2.
Table 2 is according to 1：5 contracting ratios, the subscale test parameter of a certain vehicle of calculating
In addition to above-mentioned calculating, it is ensured that subscale test platform and the key factor of full-scale assembly testing bench comparativity also have：
Using 2 test blocks, double-piston is to top formula (determining jaw type) caliper, brake caliper piston diameter of phi 25mm, test block area
2x10cm2, friction pair disk size is 148 × Φ of Φ, 50 × 8.5mm.
3rd, the important technological parameters of contracting ratio table
Main motor current：7.5~22KW frequency controls
Inertia：Base inertia I0=0.15kg.m2
Flywheel inertia I1=0.25kg.m2
I2=0.25kg.m2
I3=0.25kg.m2
I4=1.0kg.m2
I5=1.0kg.m2
I6=1.0kg.m2
Electrical analogue inertia IElectricity=± 0.5kg.m2
Total inertia：0.15~4.4kg.m2
The speed of mainshaft：0~4,000r/min
Brake wrench structure：Double-piston is to top formula (determining caliper brake)
Test block area：10cm2×2
Test block size：25mm × 40mm × 8~18mm (thickness)
Brake fluid pressure：0~200bar
Extremely low rotating speed：0~0.01r/min
Temperature survey：Room temperature~800 DEG C
4th, the test case of contracting ratio table
Reduced parameter is determined first, as shown in table 3：
Table 31:1 and 1:5 parameter conversions
Test parameters
5th, test result is contrasted
Test specification：JSAO C406, constant moment of force braking mode；
Brake assembly testing stand (1:1) result of the test, is shown in Table 4：
Table 4 (1:1) coefficient of friction/brake temperature and the relation of braking number of times
Subscale test platform (1:5) result of the test, is shown in Table 5：
Table 5 (1:5) coefficient of friction/brake temperature and the relation of braking number of times
Test data collects：It is shown in Table 6
The test data of table 6 collects
Data comparison shows that both have preferable comparativity and uniformity.
Claims (5)
1. one kind contracting is than friction material inertia bench, mainly by main motor (1), shaft coupling (2), Ultra-Low Speed drive device (3) are left
Bearing block (4), main shaft (5), flywheel group (6), wireless temperature measuring device (7), right axle bearing (8), caliper (9), caliper is installed
Cover (10), annular measuring arm of force (27), friction pair disk (12), support (13), pressure generator (14) and TT＆C system composition, its
It is characterised by：
Described motor (1) is connected installed in plane one end on support (13) and with main shaft (5), and main shaft (5) other end is equipped with and rubbed
Wipe antithesis disk (12)；Convex shoulder is machined with the middle of main shaft (5), for installing inertial flywheel group (6), the main shaft (5) passes through left axle
Bearing (4), right axle bearing (8) support；
Described annular measuring arm of force (27) is arranged between outward flange (28) and caliper installation set (10), three's connection fastening,
One end of annular measuring arm of force (27) is equipped with force snesor (29), and with sensor support base (30) phase for being fixed on support (13)
Even；
Described caliper (9) is arranged in caliper installation set (10), by left caliper (15), right caliper body (16), double-piston
(17), test specimen folder (18) composition, described double-piston (17) is separately mounted to left caliper (15), right caliper body (16) inside, is tested
Friction material presss from both sides the both sides for being inserted into braking clamp body and being arranged on friction pair disk (12) with test specimen on test specimen folder (18)；
Pressure generator (14) is arranged on support (13) lower plane, the dual-active for giving pressure transmission in caliper (9), caliper by oil pipe
Filling in (17) promotes test specimen to press from both sides the friction test block in (18), grip friction antithesis disk (12), so as to produce frictional force brakes；
Described wireless temperature measuring device (7), on outward flange (28) left side and main shaft (5), for measuring friction pair
The temperature of disk (12)；
Described sprocket wheel (24) can axially be moved left and right along main shaft (5), by the way that chain is by sprocket wheel (24) and is fixed on support (13)
The Ultra-Low Speed drive device (3) of lower plane is connected, and realizes main shaft and Ultra-Low Speed drive device (3) clutch；
Above-mentioned contracting is to be based on the theory of similarity than friction material inertia bench, and to test style friction area as car disk-type friction
Basic design parameters of the 1/5 of the friction area of piece as contracting than friction material inertia bench.
2. a kind of contracting according to claim 1 is than friction material inertia bench, it is characterised in that：Described annular measuring arm of force
(27) demarcate bar (11) is additionally provided with, scale pan, the demarcation for force snesor (29) are housed in tail end.
3. a kind of contracting according to claim 1 is than friction material inertia bench, it is characterised in that：Described pressure generator
(14) it is made up of servomotor (19), timing belt (20), ball-screw (21), master cylinder (22) and pressure sensor (23),
Pressure generator (14) is used to produce the hydraulic coupling needed for braking.
4. a kind of contracting according to claim 1 is than friction material inertia bench, it is characterised in that：The outward flange (28) with
Seam is machined with the inside of caliper installation set (10), the positioning for annular measuring arm of force (27).
5. a kind of contracting according to any of the above claim is than friction material inertia bench, it is characterised in that：The motor
(1) it is connected by shaft coupling (2) with main shaft (5), when doing Ultra-Low Speed experiment, described sprocket wheel (24) is moved to left and connection is sleeved on
It is on the right-hand member seam of axle device (2) and fixed, sprocket wheel (24) is driven with being fixed on the Ultra-Low Speed of support (13) lower plane by chain
Dynamic device (3) is connected, and at this moment main motor (1) does not work, and is tested by Ultra-Low Speed drive device (3) drive shaft (5)；Doing
During routine test, sprocket wheel (24) is moved to right and is fixed on the left of left shaft holder (4) on flange (25), realizes main shaft (5) and Ultra-Low Speed
Drive device (3) is separated, and at this moment main motor (1) drive shaft (5) is tested, and ultralow speed variator (3) does not work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710450347.XA CN107014624A (en) | 2017-06-15 | 2017-06-15 | One kind contracting is than friction material inertia bench |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450347.XA CN107014624A (en) | 2017-06-15 | 2017-06-15 | One kind contracting is than friction material inertia bench |
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| CN108132147A (en) * | 2018-03-14 | 2018-06-08 | 吉林大学 | A kind of electrical analogue compensation method of automobile clutch testing stand and Rotary Inertia of Flywheel |
| CN108548715A (en) * | 2018-03-26 | 2018-09-18 | 吉林大学 | A kind of Wet-type friction material testing machine |
| CN109238685A (en) * | 2018-11-12 | 2019-01-18 | 科力远混合动力技术有限公司 | Gearbox wet brake test tool |
| CN109357856A (en) * | 2018-11-12 | 2019-02-19 | 科力远混合动力技术有限公司 | A kind of gearbox wet brake test tool |
| CN110095369A (en) * | 2019-05-09 | 2019-08-06 | 吉林大学 | It is a kind of to contract than Krauss testing machine |
| CN114088397A (en) * | 2021-12-08 | 2022-02-25 | 中国石油大学(华东) | Thrust bearing performance test device based on similar theory |
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| CN109357856A (en) * | 2018-11-12 | 2019-02-19 | 科力远混合动力技术有限公司 | A kind of gearbox wet brake test tool |
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Application publication date: 20170804 |