CN112747919A - Test tool for coaxial double-input double-output mechanism - Google Patents
Test tool for coaxial double-input double-output mechanism Download PDFInfo
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- CN112747919A CN112747919A CN202011583066.XA CN202011583066A CN112747919A CN 112747919 A CN112747919 A CN 112747919A CN 202011583066 A CN202011583066 A CN 202011583066A CN 112747919 A CN112747919 A CN 112747919A
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- 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
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
Abstract
The invention belongs to the technical field of transmission, and particularly relates to a test tool for a coaxial double-input double-output mechanism. The invention separates the coaxial double-input and double-output mechanisms, converts the input shaft and the output shaft into parallel shafts by using the idle wheel, and then respectively connects the parallel shafts with the dynamometer for testing. The input shaft of the invention is directly connected with a drive dynamometer, and the drive dynamometer is used as a drive source of the mechanism; the output shaft is connected with an output gear through a two-stage idle gear, the output gear shaft is connected with a loading dynamometer, and the loading dynamometer is used as the load of the mechanism. During testing, the dynamometer is driven to input different rotating speeds, the dynamometer is loaded to load different torques, and performance testing of the coaxial dual-input dual-output mechanism is performed.
Description
Technical Field
The invention belongs to the technical field of transmission, and particularly relates to a test tool for a coaxial double-input double-output mechanism.
Background
Aiming at the design of the electric transmission technical scheme of the tracked vehicle, a plurality of research works are carried out at home and abroad. The electric transmission has four main structural forms, and a double-side motor independent driving form and a zero differential type electric transmission form are commonly used. However, the zero differential electric transmission has an independent steering motor and a steering mechanism, and the structure is complex. Research shows that the double-side motor independent driving scheme is the simplest, but measures are needed to enable regenerative power generated by the inner crawler belt to be transmitted to the outer side in a backflow mode when the vehicle turns. If the electric power backflow mode is adopted, the required power of the motor is excessive. And a mechanical backflow mode is adopted, namely a coupling mechanism is added in the center of the independent driving system of the motors on the two sides, so that steering regenerative power flows back in a mechanical mode as far as possible and is transmitted to the high-speed side, the power requirement of the motors can be reduced, and the power utilization of the motors under various running conditions is improved. In the scheme, the coupling mechanism is a key part and is a coaxial double-input double-output mechanism, the key part is tested, the transmission performance of the key part is found, and the coupling mechanism has important significance for the application of an electric transmission system of a tracked vehicle.
The coupling mechanism is a coaxial double-input double-output mechanism, and can not be directly connected with the dynamometer when being tested, and the input shaft and the output shaft of the coupling mechanism need to be separated, so that the coupling mechanism is convenient to connect with the dynamometer.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to provide a test frock of coaxial dual input dual output mechanism, with the input shaft and the output shaft separation of coaxial dual input dual output mechanism, be convenient for connect the dynamometer, carry out the performance test of mechanism. The invention solves another technical problem of how to support the input shaft and the output shaft of the tested piece, connect the tested piece to a dynamometer and carry out test testing.
(II) technical scheme
In order to solve the technical problem, the invention provides a test tool for a coaxial dual-input dual-output mechanism, which comprises: a first left input gear 2, a first right input gear 13, a left second-stage idler 5, a right second-stage idler 16, a left first-stage idler 8, a right first-stage idler 19, a left second-stage idler shaft 6, a right second-stage idler shaft 17, a left first-stage idler shaft 9, a right first-stage idler shaft 20, a second left input gear 10, a second right input gear 21, a left output shaft 3, a right output shaft 14, a left input shaft 12, a right input shaft 22, a left input connecting flange 11, a right input connecting flange 23, a left output connecting flange 4 and a right output connecting flange 15;
the left input connecting flange 11 and the right input connecting flange 23 are respectively connected with a drive dynamometer, and the left input connecting flange 11 and the right input connecting flange 23 are also respectively connected with the left input shaft 12 and the right input shaft 22;
the left input shaft 12 and the right input shaft 22 are connected with the second left input gear 10 and the second right input gear 21;
the second left input gear 10 and the second right input gear 21 are respectively meshed with the left first-stage idle gear 8 and the right first-stage idle gear 19;
the left first-stage idler wheel 8 and the right first-stage idler wheel 19 are respectively meshed with the left second-stage idler wheel 5 and the right second-stage idler wheel 16;
the left second-stage idle gear 5 and the right second-stage idle gear 16 are respectively meshed with the first left input gear 2 and the first right input gear 13;
the first left input gear 2 and the first right input gear 13 are gears fixedly connected to an input shaft of a tested piece;
the left output shaft 3 and the right output shaft 14 are respectively connected with a left output connecting flange 4 and a right output connecting flange 15;
the left output connecting flange 4 and the right output connecting flange 15 are respectively connected with a loading dynamometer;
the left second-stage idler 5 and the right second-stage idler 16 are respectively arranged on a left second-stage idler shaft 6 and a right second-stage idler shaft 17, and the left first-stage idler 8 and the right first-stage idler 19 are respectively arranged on a left first-stage idler shaft 9 and a right first-stage idler shaft 20.
Wherein, experimental frock still includes: an outer box 1, an inner left support wall 7, an inner right support wall 18;
the outer box 1 is the same structure as the inner left supporting wall 7 and the inner right supporting wall 18, that is, the inner left supporting wall 7 and the inner right supporting wall 18 are part of the outer box 1.
The left input connecting flange 11 and the right input connecting flange 23 are respectively connected with the driving dynamometer through a coupler.
Wherein the drive dynamometer is used as a drive source of the mechanism, and the driving force is input to the test piece via the left and right input shafts 12 and 22, the second left and right input gears 10 and 21, the left and second-stage idle gears 5, the right and first- stage idle gears 16, 8, 19, the first left input gear 2, and the first right input gear 13.
The left output connecting flange 4 and the right output connecting flange 15 are respectively connected with the loading dynamometer through a coupler.
During testing, the loading dynamometer is used as the load of the mechanism to load the tested part coaxial dual-input dual-output mechanism.
Wherein, the two ends of the left first-stage idler shaft 9 and the left second-stage idler shaft 6 are respectively arranged on the outer box body 1 and the inner left supporting wall 7 through bearings.
Wherein, the two ends of the right primary idler shaft 20 and the right secondary idler shaft 17 are respectively arranged on the outer box body 1 and the inner right supporting wall 18 through bearings.
The sizes of the first left input gear 2 and the first right input gear 13, the left second-stage idler gear 5 and the right second-stage idler gear 16, the left first-stage idler gear 8 and the right first-stage idler gear 19, and the second left input gear 10 and the second right input gear 21 are matched according to the distance between the driving dynamometer and the loading dynamometer.
Wherein the first left input gear 2 and the first right input gear 13 are identical; the left second-stage idler 5 and the right second-stage idler 16 are identical; the left-stage idle wheel 8 and the right-stage idle wheel 19 are the same; the second left input gear 10 and the second right input gear 21 are identical.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects: the test tool for the coaxial double-input double-output mechanism is provided, an input shaft and an output shaft of the coaxial double-input double-output mechanism are separated, the dynamometer is conveniently connected, and the performance test of the mechanism is carried out. The invention realizes the design of supporting the input shaft and the output shaft of the tested piece, connecting the input shaft and the output shaft to the dynamometer and carrying out test testing.
Drawings
Fig. 1 is a schematic diagram of a test fixture of a coaxial dual-input dual-output mechanism of the invention.
FIG. 2 is a schematic structural diagram of a test fixture of the coaxial dual-input dual-output mechanism.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
In order to solve the above technical problem, the present invention provides a test tool for a coaxial dual-input dual-output mechanism, as shown in fig. 1 and 2, including: a first left input gear 2, a first right input gear 13, a left second-stage idler 5, a right second-stage idler 16, a left first-stage idler 8, a right first-stage idler 19, a left second-stage idler shaft 6, a right second-stage idler shaft 17, a left first-stage idler shaft 9, a right first-stage idler shaft 20, a second left input gear 10, a second right input gear 21, a left output shaft 3, a right output shaft 14, a left input shaft 12, a right input shaft 22, a left input connecting flange 11, a right input connecting flange 23, a left output connecting flange 4 and a right output connecting flange 15;
the left input connecting flange 11 and the right input connecting flange 23 are respectively connected with a drive dynamometer, and the left input connecting flange 11 and the right input connecting flange 23 are also respectively connected with the left input shaft 12 and the right input shaft 22;
the left input shaft 12 and the right input shaft 22 are connected with the second left input gear 10 and the second right input gear 21;
the second left input gear 10 and the second right input gear 21 are respectively meshed with the left first-stage idle gear 8 and the right first-stage idle gear 19;
the left first-stage idler wheel 8 and the right first-stage idler wheel 19 are respectively meshed with the left second-stage idler wheel 5 and the right second-stage idler wheel 16;
the left second-stage idle gear 5 and the right second-stage idle gear 16 are respectively meshed with the first left input gear 2 and the first right input gear 13;
the first left input gear 2 and the first right input gear 13 are gears fixedly connected to an input shaft of a tested piece;
the left output shaft 3 and the right output shaft 14 are respectively connected with a left output connecting flange 4 and a right output connecting flange 15;
the left output connecting flange 4 and the right output connecting flange 15 are respectively connected with a loading dynamometer;
the left second-stage idler 5 and the right second-stage idler 16 are respectively arranged on a left second-stage idler shaft 6 and a right second-stage idler shaft 17, and the left first-stage idler 8 and the right first-stage idler 19 are respectively arranged on a left first-stage idler shaft 9 and a right first-stage idler shaft 20.
Wherein, experimental frock still includes: an outer box 1, an inner left support wall 7, an inner right support wall 18;
the outer box 1 is the same structure as the inner left supporting wall 7 and the inner right supporting wall 18, that is, the inner left supporting wall 7 and the inner right supporting wall 18 are part of the outer box 1.
The left input connecting flange 11 and the right input connecting flange 23 are respectively connected with the driving dynamometer through a coupler.
Wherein the drive dynamometer is used as a drive source of the mechanism, and the driving force is input to the test piece via the left and right input shafts 12 and 22, the second left and right input gears 10 and 21, the left and second-stage idle gears 5, the right and first- stage idle gears 16, 8, 19, the first left input gear 2, and the first right input gear 13.
The left output connecting flange 4 and the right output connecting flange 15 are respectively connected with the loading dynamometer through a coupler.
During testing, the loading dynamometer is used as the load of the mechanism to load the tested part coaxial dual-input dual-output mechanism.
Wherein, the two ends of the left first-stage idler shaft 9 and the left second-stage idler shaft 6 are respectively arranged on the outer box body 1 and the inner left supporting wall 7 through bearings.
Wherein, the two ends of the right primary idler shaft 20 and the right secondary idler shaft 17 are respectively arranged on the outer box body 1 and the inner right supporting wall 18 through bearings.
The sizes of the first left input gear 2 and the first right input gear 13, the left second-stage idler gear 5 and the right second-stage idler gear 16, the left first-stage idler gear 8 and the right first-stage idler gear 19, and the second left input gear 10 and the second right input gear 21 are matched according to the distance between the driving dynamometer and the loading dynamometer.
Wherein the first left input gear 2 and the first right input gear 13 are identical; the left second-stage idler 5 and the right second-stage idler 16 are identical; the left-stage idle wheel 8 and the right-stage idle wheel 19 are the same; the second left input gear 10 and the second right input gear 21 are identical.
The invention belongs to the technical field of transmission, and particularly relates to a test tool for a coaxial double-input double-output mechanism. The invention separates the coaxial double-input and double-output mechanisms, converts the input shaft and the output shaft into parallel shafts by using the idle wheel, and then respectively connects the parallel shafts with the dynamometer for testing. The input shaft of the invention is directly connected with a drive dynamometer, and the drive dynamometer is used as a drive source of the mechanism; the output shaft is connected with an output gear through a two-stage idle gear, the output gear shaft is connected with a loading dynamometer, and the loading dynamometer is used as the load of the mechanism. During testing, the dynamometer is driven to input different rotating speeds, the dynamometer is loaded to load different torques, and performance testing of the coaxial dual-input dual-output mechanism is performed.
The present invention will be described in detail with reference to specific examples.
Example 1
The embodiment provides a coaxial dual-input dual-output mechanism test tool, as shown in fig. 1 and 2, the tool includes: an outer case 1, inner left and right support walls 7 and 18, first left and right input gears 2 and 13, left and right second- stage idlers 5 and 16, left and right first- stage idlers 8 and 19, left and right second-stage idlers 6 and 17, left and right first-stage idlers 9 and 20, second left and right input gears 10 and 21, left and right output shafts 3 and 14, left and right input shafts 12 and 22, and left and right input and output connection flanges 11 and 23, left and right output connection flanges 4 and 15; since the test fixture is of a symmetrical construction, only the left side will be described in the following description.
The left input connecting flange 11 is connected with a driving dynamometer through a coupler and the like, and the driving dynamometer provides power;
the left input shaft 12 is connected with a left input connecting flange 11 and a second left input gear 10, the left input gear 10 is meshed with a left first-stage idle gear 8, the left first-stage idle gear 8 is meshed with a left second-stage idle gear 5, the left second-stage idle gear 5 is meshed with a first left input gear 2, and driving force is transmitted to the first left input gear 2 through the left first-stage idle gear 8 and the left second-stage idle gear 5 by the left input connecting flange 11;
the second left input gear 10 is connected with a left input shaft 12, the left first-stage idler 8 is connected with a left first-stage idler shaft 9, the left second-stage idler 5 is connected with a left second-stage idler shaft 6, and two ends of the left input shaft 12, the left first-stage idler shaft 9 and the left second-stage idler shaft 6 are supported on the outer box body 1 and the left support wall 7 through bearings respectively, so that the normal operation of the gears is guaranteed
The first left input gear 2 is fixedly connected to an input shaft of a tested piece and transmits power to the tested piece;
the left output connecting flange 4 is fixedly connected to an output shaft of the tested piece, is connected with a loading dynamometer through a coupler and the like, and is loaded by the loading dynamometer to test the tested piece;
the sizes of the first left input gear 2, the first right input gear 13, the left second-stage idler gear 5, the right second-stage idler gear 16, the left first-stage idler gear 8, the right first-stage idler gear 19, the second left input gear 10 and the second right input gear 21 are matched according to the distance between the driving dynamometer and the loading dynamometer.
In the working process, the driving dynamometer connected with the left input connecting flange 11 and the right input connecting flange 23 is loaded with the required rotating speed torque for the test, after the system is stabilized, the loading dynamometer connected with the left output connecting flange 4 and the right output connecting flange 15 is loaded with the required rotating speed torque for the test, after the system is stabilized, the different rotating speed torques of the input end and the output end are recorded, and the power loss, the efficiency and the like of the tested piece are calculated.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an experimental frock of coaxial dual input dual output mechanism which characterized in that includes: the device comprises a first left input gear (2), a first right input gear (13), a left second-stage idler (5), a right second-stage idler (16), a left first-stage idler (8), a right first-stage idler (19), a left second-stage idler shaft (6), a right second-stage idler shaft (17), a left first-stage idler shaft (9), a right first-stage idler shaft (20), a second left input gear (10), a second right input gear (21), a left output shaft (3), a right output shaft (14), a left input shaft (12), a right input shaft (22), a left input connecting flange (11), a right input connecting flange (23), a left output connecting flange (4) and a right output connecting flange (15);
the left input connecting flange (11) and the right input connecting flange (23) are respectively connected with the drive dynamometer, and the left input connecting flange (11) and the right input connecting flange (23) are also respectively connected with the left input shaft (12) and the right input shaft (22);
the left input shaft (12) and the right input shaft (22) are connected with a second left input gear (10) and a second right input gear (21);
the second left input gear (10) and the second right input gear (21) are respectively meshed with the left first-stage idler wheel (8) and the right first-stage idler wheel (19);
the left first-stage idler wheel (8) and the right first-stage idler wheel (19) are respectively meshed with the left second-stage idler wheel (5) and the right second-stage idler wheel (16);
the left-stage idle gear (5) and the right-stage idle gear (16) are respectively meshed with the first left input gear (2) and the first right input gear (13);
the first left input gear (2) and the first right input gear (13) are gears fixedly connected to an input shaft of a tested piece;
the left output shaft (3) and the right output shaft (14) are respectively connected with a left output connecting flange (4) and a right output connecting flange (15);
the left output connecting flange (4) and the right output connecting flange (15) are respectively connected with a loading dynamometer;
the left secondary idler (5) and the right secondary idler (16) are respectively arranged on a left secondary idler shaft (6) and a right secondary idler shaft (17), and the left primary idler (8) and the right primary idler (19) are respectively arranged on a left primary idler shaft (9) and a right primary idler shaft (20).
2. The test tool for the coaxial dual-input dual-output mechanism according to claim 1, further comprising: an outer box (1), an inner left support wall (7), an inner right support wall (18);
the outer box body (1) and the inner left supporting wall (7) and the inner right supporting wall (18) are the same structural part, namely the inner left supporting wall (7) and the inner right supporting wall (18) are part of the outer box body (1).
3. The test tool for the coaxial dual-input dual-output mechanism is characterized in that the left input connecting flange (11) and the right input connecting flange (23) are respectively connected with a drive dynamometer through a coupler.
4. The test tool for the coaxial dual-input dual-output mechanism according to claim 3, wherein the drive dynamometer is used as a drive source of the mechanism, and a driving force is input to a tested piece through a left input shaft (12) and a right input shaft (22), a second left input gear (10) and a second right input gear (21), a left second-stage idle gear (5), a right second-stage idle gear (16), a left first-stage idle gear (8), a right first-stage idle gear (19), a first left input gear (2) and a first right input gear (13).
5. The test tool for the coaxial dual-input dual-output mechanism according to claim 1, wherein the left output connecting flange (4) and the right output connecting flange (15) are respectively connected with a loading dynamometer through a coupler.
6. The test tool for the coaxial dual-input dual-output mechanism according to claim 5, wherein during testing, the loading dynamometer is used as a load of the mechanism to load the coaxial dual-input dual-output mechanism of the tested piece.
7. The test tool for the coaxial dual-input dual-output mechanism is characterized in that two ends of the left-stage idler shaft (9) and two ends of the left-stage idler shaft (6) are respectively mounted on the outer box body (1) and the inner left supporting wall (7) through bearings.
8. The test fixture for the coaxial dual-input dual-output mechanism according to claim 1, wherein two ends of each of the right primary idler shaft (20) and the right secondary idler shaft (17) are respectively mounted on the outer box body (1) and the inner right support wall (18) through bearings.
9. The test tool for the coaxial dual-input dual-output mechanism is characterized in that the sizes of the first left input gear (2) and the first right input gear (13), the left second-stage idler gear (5) and the right second-stage idler gear (16), the left first-stage idler gear (8) and the right first-stage idler gear (19), and the second left input gear (10) and the second right input gear (21) are matched according to the distance between the driving dynamometer and the loading dynamometer.
10. The test fixture for the coaxial dual-input dual-output mechanism according to claim 9, wherein the first left input gear (2) and the first right input gear (13) are the same; the left secondary idler wheel (5) and the right secondary idler wheel (16) are the same; the left first-stage idler wheel (8) and the right first-stage idler wheel (19) are the same; the second left input gear (10) and the second right input gear (21) are identical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011583066.XA CN112747919B (en) | 2020-12-28 | 2020-12-28 | Test tool for coaxial double-input double-output mechanism |
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| CN202011583066.XA CN112747919B (en) | 2020-12-28 | 2020-12-28 | Test tool for coaxial double-input double-output mechanism |
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| CN112747919B CN112747919B (en) | 2022-07-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005233668A (en) * | 2004-02-17 | 2005-09-02 | Horiba Ltd | Car performance testing machine |
| CN102229319A (en) * | 2011-04-26 | 2011-11-02 | 中国北方车辆研究所 | Electromechanical compound transmission device of tracked vehicle |
| CN103063944A (en) * | 2012-12-04 | 2013-04-24 | 中国北方车辆研究所 | Vehicle electric transmission device test platform |
| CN105806628A (en) * | 2016-03-18 | 2016-07-27 | 中国农业大学 | Multi-performance testing table for electric tractor and testing method using testing table |
| CN205785837U (en) * | 2016-06-01 | 2016-12-07 | 襄阳达安汽车检测中心 | A kind of automobile double drive axle assay device |
| CN110207980A (en) * | 2019-07-10 | 2019-09-06 | 西北工业大学 | Multiple-input and multiple-output gear train assembly test of Vibration platform and test method |
-
2020
- 2020-12-28 CN CN202011583066.XA patent/CN112747919B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005233668A (en) * | 2004-02-17 | 2005-09-02 | Horiba Ltd | Car performance testing machine |
| CN102229319A (en) * | 2011-04-26 | 2011-11-02 | 中国北方车辆研究所 | Electromechanical compound transmission device of tracked vehicle |
| CN103063944A (en) * | 2012-12-04 | 2013-04-24 | 中国北方车辆研究所 | Vehicle electric transmission device test platform |
| CN105806628A (en) * | 2016-03-18 | 2016-07-27 | 中国农业大学 | Multi-performance testing table for electric tractor and testing method using testing table |
| CN205785837U (en) * | 2016-06-01 | 2016-12-07 | 襄阳达安汽车检测中心 | A kind of automobile double drive axle assay device |
| CN110207980A (en) * | 2019-07-10 | 2019-09-06 | 西北工业大学 | Multiple-input and multiple-output gear train assembly test of Vibration platform and test method |
Non-Patent Citations (1)
| Title |
|---|
| 盖江涛 等: "双电机耦合驱动履带车辆自适应滑模转向控制", 《兵工学报》 * |
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