CN208537189U - A kind of heavy-duty car tandem axle testing stand - Google Patents
A kind of heavy-duty car tandem axle testing stand Download PDFInfo
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- CN208537189U CN208537189U CN201821407963.3U CN201821407963U CN208537189U CN 208537189 U CN208537189 U CN 208537189U CN 201821407963 U CN201821407963 U CN 201821407963U CN 208537189 U CN208537189 U CN 208537189U
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- jackshaft
- rear axle
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Abstract
The utility model discloses a kind of heavy-duty car tandem axle testing stands, including an integrated driving head and four integrated loading heads, integrated driving head includes driving head pedestal, variable frequency drive motors, slow down to rise and turns round transmission case and system dynamic input test mechanism, integrated loading head includes loading head pedestal, frequency conversion loading motor, raising speed drop turns round transmission case and the unilateral output power mechanism for testing of bridge, two integrated loading heads are symmetricly set on the left and right sides of subject jackshaft, two integrated loading heads are symmetricly set on the left and right sides of subject rear axle, subject jackshaft is connected with subject rear axle by rear axle input test mechanism, integrated driving head is connected with the power intake of subject jackshaft；All mechanism for testing include the shaft coupling, sensor, shaft coupling being sequentially connected in series.Verification experimental verification can be carried out to jackshaft, rear axle simultaneously, especially suitable for there is the test of the heavy-duty car drive system of inter-axle differential between jackshaft rear axle；Rack building block system combining structure, convenient for quickly assembling overlap joint, the scope of application of expanding test platform.
Description
Technical field
The utility model belongs to Automobile Test System technical field, and in particular to one kind is for measuring heavy-duty car double drive
The testing stand of bridge can simultaneously test the jackshaft and rear axle of heavy-duty car.
Background technique
In actual use, drive axle damage ratio is relatively high for heavy-duty car, except badly having with use environment outside the Pass, also
It is related with the verification experimental verification method in the drive axle design phase.Rear bridge driven in heavy off-road vehicle use, it is defeated since power is big
Torque is big out, and all the time, domestic is all to carry out verification experimental verification to jackshaft, rear axle respectively using testboard independent.
This mode individually tested jackshaft, rear axle actually uses operating condition grave fault with vehicle, grinds in vehicle
The hair stage not can be carried out authentic testing evaluation for the inter-axle differential and jackshaft of heavy-duty car drive system, the performance of rear axle.
In order to reduce damage, vehicle bridge manufactory constantly reinforces drive axle from design, technique, material etc., leads to vehicle spring force quality
It constantly aggravates, threatens to vehicle safety even running.
Utility model content
The utility model is intended to provide a kind of heavy-duty car tandem axle testing stand, can try simultaneously jackshaft, rear axle
Verifying, the heavy-duty car drive system especially suitable for jackshaft rear axle shaft space difference speed are tested, and test evaluation result and vehicle are made
Actual use operating condition is consistent.
For this purpose, the technology employed by the present utility model is a kind of heavy-duty car tandem axle testing stand, including one
Integrated driving head and four loading heads, the integrated driving head include driving head pedestal and installed in series in order in driving head
Variable frequency drive motors, deceleration on pedestal rise torsion transmission case and system dynamic input test mechanism, the integrated loading head include
Frequency conversion loading motor, raising speed drop torsion transmission case and the bridge list of loading head pedestal and installed in series in order on loading head pedestal
Side output power mechanism for testing, two of them integrate loading head be symmetricly set on subject jackshaft the left and right sides and respectively with subject
Two power output ends of jackshaft are connected, other two integrated loading head is symmetricly set on the left and right sides and the difference of subject rear axle
Be connected with two power output ends of subject rear axle, the subject jackshaft be tested that rear axle time interval is arranged and to pass through rear axle defeated
Enter mechanism for testing to be connected, the integrated driving head is connected with the power intake of subject jackshaft, to make heavy-duty car double drive
Bridge testing stand is integrally in " soil " font arrangement；The unilateral output power mechanism for testing of system dynamic input test mechanism, bridge, after
Bridge input test mechanism includes the shaft coupling, sensor, shaft coupling being sequentially connected in series.
The shaft coupling uses drum-shaped tooth type shaft coupling as a preferred embodiment of the above solution, and the power of variable frequency drive motors is
710KW, the power of frequency conversion loading motor are 380KW.Sensor can twist during the test, cannot bend, together
Heart degree requires high, installs flexible drum-shaped tooth type shaft coupling in the two sides of sensor, itself can occur front and rear, left and right, on
Lower swing, so that sensor be effectively protected.Optimize the power of variable frequency drive motors and frequency conversion loading motor, it is ensured that four
A integrated loading head constant speed constant power.
Further preferably, described slow down rises the second output terminal head that torsion transmission case is further equipped with a 1:1 transmission ratio, and
The second output terminal head and the first output end are located at the same side for slowing down and rising and turning round transmission case, second output terminal head and input end
On coaxial inner conductor.The second output terminal head for increasing a 1:1 transmission ratio on transmission case is turned round for high-speed rail gear-box slowing down to rise
High-speed test (HST), the scope of application of expanding test platform.
Further preferably, the variable frequency drive motors and slow down rise turn round transmission case between, system dynamic input test machine
Between structure and subject jackshaft, frequency conversion loading motor and raising speed drop turn round between transmission case, the unilateral output power mechanism for testing of bridge and quilt
It tries between jackshaft, distinguish between subject jackshaft and rear axle input test mechanism, between rear axle input test mechanism and subject rear axle
It is connected by transmission shaft.
Further preferably, it is fixed drive ratio that the raising speed drop, which turns round transmission case, and each integrated loading head is also equipped with
There is a variable gear ratio raising speed case, and raising speed drop is turned round transmission case and is used in series with variable gear ratio raising speed case.Integrated loading head
Using two-stage raising speed, frequency conversion loading motor can be made to be in optimum speed zone state, to protect frequency conversion loading motor, extend and become
The service life of frequency loading motor；Also, by the way that the scope of application of heavy-duty car tandem axle testing stand can be made after two-stage raising speed
It is expanded in the test of engineering motor vehicle drive system.
Further preferably, the frequency conversion loading motor is equipped with there are two end is exported, and another end is for carrying out speed change
The efficiency and life test of device assembly.Do not change original testing stand, increases the scope of application of testing stand by building block system overlap joint.
The utility model has the beneficial effects that
(1), five power heads in " soil " font arrangement being made of an integrated driving head and four integrated loading heads are same
When work, can simultaneously to jackshaft, rear axle carry out verification experimental verification, especially suitable for there is the heavy-duty car of shaft space difference speed between jackshaft rear axle
Drive system test makes test evaluation result actually use operating condition with vehicle and is consistent, and avoids blindly reinforcing drive axle to vehicle peace
Full even running threatens；
(2), rack building block system combining structure convenient for quickly assembling overlap joint, and is overlapped by different combinations, to expand examination
The scope of application for testing platform makes the full-featured of testing stand, and the setting of different tests platform is avoided to increase testing equipment cost and occupancy
Save the cost is designed in place, and reduces adjustment workload and test specimen mounting and adjusting difficulty.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is that deceleration rises the second output terminal head for turning round one 1:1 transmission ratio of increase on transmission case for high-speed rail gear-box height
The state of speed test.
Fig. 3 is integrated loading head for carrying out the efficiency of transmission assembly and the state of life test.
Fig. 4 is the state that integrated loading head uses two-stage raising speed.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the utility model is described in further detail:
As shown in Figure 1, a kind of heavy-duty car tandem axle testing stand, is mainly integrated by an integrated driving head A, four and is added
Carrier head B composition.
Integrated driving head A is equipped with driving head pedestal 1, and installed in series in order has frequency conversion drive electric on driving head pedestal 1
Machine 2 slows down to rise and turns round transmission case 3 and system dynamic input test mechanism 4.Integrated driving head A is used to simulate the power of heavy-duty car
Drive system.System dynamic input test mechanism 4 is inputted for test macro power.
Integrated loading head B is equipped with loading head pedestal 5, and installed in series in order has frequency conversion load electricity on loading head pedestal 5
Machine 6, raising speed drop turn round transmission case 7 and the unilateral output power mechanism for testing 8 of bridge.Integrated loading head B is used to simulate the wheel of heavy-duty car
Tire.Four integrated loading head B respectively correspond jackshaft, four tires on rear axle.The unilateral output power mechanism for testing 8 of bridge is for surveying
The corresponding unilateral output power of bridge is tried, wherein the unilateral output power mechanism for testing 8 of bridge corresponding with jackshaft is for testing jackshaft list
Side output power, the unilateral output power mechanism for testing 8 of bridge corresponding with rear axle is for testing the unilateral output power of rear axle.
Two of them integrate the left and right sides that loading head B is symmetricly set on subject jackshaft 9, and respectively with subject jackshaft 9
Two power output ends are connected.Other two integrated loading head B is symmetricly set on the left and right sides of subject rear axle 10, and respectively with
Two power output ends for being tested rear axle 10 are connected.Being tested jackshaft 9 and subject rear axle 10 is by test specimen.
Subject jackshaft 9, which is arranged with subject 10 time interval of rear axle and passes through rear axle input test mechanism 11, to be connected, and rear axle is defeated
Enter mechanism for testing 11 for testing rear axle power input.
In addition to this, integrated driving head A is connected with the power intake of subject jackshaft 9, to make heavy-duty car double drive
Bridge testing stand is integrally in " soil " font arrangement.
The unilateral output power mechanism for testing 8 of system dynamic input test mechanism 4, bridge, rear axle input test mechanism 11 by
Shaft coupling 12, sensor 13, the shaft coupling 12 being sequentially connected in series form.
Preferably, shaft coupling 12 uses drum-shaped tooth type shaft coupling, and the power of variable frequency drive motors 2 is 710KW, frequency conversion load
The power of motor 6 is 380KW.
Slow down to rise and turn round the second output terminal head 3b that transmission case 3 is further equipped with a 1:1 transmission ratio, and the second output terminal head
The output of 3b and first end 3a is located at the same side for slowing down and rising and turning round transmission case 3, and second output terminal head 3b and input end 3c is same
On one straight line.It is connected by second output terminal head 3b with high-speed rail gear-box, to carry out the high speed verifying examination of high-speed rail gear-box 17
It tests, as shown in Fig. 2, wherein not connected components are omitted altogether.
In addition, variable frequency drive motors 2 and the liter that slows down are turned round between transmission case 3, in system dynamic input test mechanism 4 and subject
Between bridge 9, frequency conversion loading motor 6 and raising speed drop turn round between transmission case 7, the unilateral output power mechanism for testing of bridge 8 and subject jackshaft 9
Between, subject jackshaft 9 and rear axle input test mechanism 11 between, rear axle input test mechanism 11 and subject rear axle 10 between respectively
It is connected by transmission shaft 15.The unilateral output power mechanism for testing 8 of system dynamic input test mechanism 4, bridge, rear axle input test machine
Support base 14 is additionally provided on structure 11 for installing the end of transmission shaft 15.
It is fixed drive ratio that raising speed drop, which turns round transmission case 7, and each integrated loading head B is preferably further equipped with a variable gear ratio
Raising speed case 16, and raising speed drop is turned round transmission case 7 and is used in series with variable gear ratio raising speed case 16, as shown in Figure 4.
Frequency conversion loading motor 6 be equipped with there are two export end, another end be used for carry out transmission assembly 18 efficiency and
Life test, as shown in figure 3, wherein not connected components are omitted altogether.
Heavy-duty car tandem axle testing stand is suitable for input torque and is not more than no more than 50kNm, unilateral output
300kNm, input speed are not higher than 200r/min, and transmitting power is all kinds of heavy between 4~24 no more than the speed ratio of 630kW
Type vehicle and off-highway vehicle driving axis test.
It, can be with differential between the single bridge test of different overlapping modes progress, jackshaft and bridge in addition to the upper verification test
Test etc..
Claims (6)
1. a kind of heavy-duty car tandem axle testing stand, it is characterised in that: integrate and add including an integrated driving head (A) and four
Carrier head (B), the integrated driving head (A) include integrated driving head pedestal (1) and installed in series in order in driving head pedestal
(1) variable frequency drive motors (2), the liter that slows down on turn round transmission case (3) and system dynamic input test mechanism (4), and described integrate adds
Carrier head (B) include frequency conversion loading motor (6) on loading head pedestal (5) of loading head pedestal (5) and installed in series in order,
Raising speed drop turns round transmission case (7) and the unilateral output power mechanism for testing (8) of bridge, two of them integrate loading head (B) and are symmetricly set on
It is tested the left and right sides of jackshaft (9) and is connected respectively with two power output ends of subject jackshaft (9), other two integrated load
Head (B) is symmetricly set on the left and right sides of subject rear axle (10) and respectively two power output end phases with subject rear axle (10)
Even, the subject jackshaft (9) is arranged with subject rear axle (10) time interval and passes through rear axle input test mechanism (11) and is connected, institute
It states integrated driving head (A) and is connected with the power intake for being tested jackshaft (9), to keep heavy-duty car tandem axle testing stand whole
It is arranged in " soil " font；The unilateral output power mechanism for testing (8) of system dynamic input test mechanism (4), bridge, rear axle input
Mechanism for testing (11) includes shaft coupling (12), sensor (13), the shaft coupling (12) being sequentially connected in series.
2. heavy-duty car tandem axle testing stand described in accordance with the claim 1, it is characterised in that: the shaft coupling (12) uses
Drum-shaped tooth type shaft coupling, the power of variable frequency drive motors (2) are 710KW, and the power of frequency conversion loading motor (6) is 380KW.
3. heavy-duty car tandem axle testing stand described in accordance with the claim 1, it is characterised in that: the deceleration, which rises, turns round transmission case
(3) the second output terminal head (3b) of a 1:1 transmission ratio, and the second output terminal head (3b) and the first output end are further equipped with
(3a) is located at the same side for slowing down and rising and turning round transmission case (3), and second output terminal head (3b) and input end (3c) are in same axial line
On.
4. heavy-duty car tandem axle testing stand described in accordance with the claim 3, it is characterised in that: the variable frequency drive motors
(2) between liter torsion transmission case (3) of slowing down, between system dynamic input test mechanism (4) and subject jackshaft (9), frequency conversion load
Motor (6) and raising speed drop turn round transmission case (7) between, the unilateral output power mechanism for testing (8) of bridge be tested jackshaft (9) between, quilt
It tries between jackshaft (9) and rear axle input test mechanism (11), divide between rear axle input test mechanism (11) and subject rear axle (10)
Not Tong Guo transmission shaft (15) be connected.
5. heavy-duty car tandem axle testing stand described in accordance with the claim 3, it is characterised in that: the raising speed drop turns round transmission case
It (7) is fixed drive ratio, each integrated loading head (B) is further equipped with a variable gear ratio raising speed case (16), and raising speed
Drop is turned round transmission case (7) and is used in series with variable gear ratio raising speed case (16).
6. heavy-duty car tandem axle testing stand described in accordance with the claim 1, it is characterised in that: the frequency conversion loading motor
(6) it is equipped with there are two end is exported, another end is used to carry out the efficiency and life test of transmission assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407963.3U CN208537189U (en) | 2018-08-29 | 2018-08-29 | A kind of heavy-duty car tandem axle testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407963.3U CN208537189U (en) | 2018-08-29 | 2018-08-29 | A kind of heavy-duty car tandem axle testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208537189U true CN208537189U (en) | 2019-02-22 |
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ID=65378391
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821407963.3U Active CN208537189U (en) | 2018-08-29 | 2018-08-29 | A kind of heavy-duty car tandem axle testing stand |
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| Country | Link |
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| CN (1) | CN208537189U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871805A (en) * | 2018-08-29 | 2018-11-23 | 中国汽车工程研究院股份有限公司 | Heavy-duty car tandem axle testing stand |
| CN111929058A (en) * | 2020-07-02 | 2020-11-13 | 中国第一汽车股份有限公司 | Static torsion test device and method for through bridge driving cylindrical gear shaft |
-
2018
- 2018-08-29 CN CN201821407963.3U patent/CN208537189U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871805A (en) * | 2018-08-29 | 2018-11-23 | 中国汽车工程研究院股份有限公司 | Heavy-duty car tandem axle testing stand |
| CN111929058A (en) * | 2020-07-02 | 2020-11-13 | 中国第一汽车股份有限公司 | Static torsion test device and method for through bridge driving cylindrical gear shaft |
| CN111929058B (en) * | 2020-07-02 | 2022-07-22 | 中国第一汽车股份有限公司 | Static torsion test device and method for through bridge driving cylindrical gear shaft |
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