CN114279702A - Load test device for gear transmission system of rail engineering vehicle - Google Patents
Load test device for gear transmission system of rail engineering vehicle Download PDFInfo
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- CN114279702A CN114279702A CN202111375117.4A CN202111375117A CN114279702A CN 114279702 A CN114279702 A CN 114279702A CN 202111375117 A CN202111375117 A CN 202111375117A CN 114279702 A CN114279702 A CN 114279702A
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Abstract
The invention discloses a load test device for a gear transmission system of a rail engineering truck, which mainly comprises a driving motor, a first driving gear box, a first driven gear box, a load motor, a second driving gear box and a second driven gear box, wherein the driving motor, the first driving gear box and the first driven gear box are sequentially and rigidly connected to form a main test unit, the load motor, the second driving gear box and the second driven gear box are sequentially and rigidly connected to form a test assisting unit, a first output shaft of the first driving gear box is rigidly connected with an input shaft of the first driven gear box, a first output shaft of the second driving gear box is rigidly connected with an input shaft of the second driven gear box, a second output shaft of the first driving gear box is rigidly connected with an output shaft of the second driven gear box, and a second output shaft of the second driving gear box is rigidly connected with an output shaft of the first driven gear box. The device can simultaneously carry out load test on the driving gear box and the driven gear box of the gear transmission system, has high efficiency and convenient operation, and accords with actual working conditions.
Description
Technical Field
The invention belongs to the technical field of rail engineering vehicles, and particularly relates to a load test device for a gear transmission system of a rail engineering vehicle.
Background
The gear transmission system is a key walking part driving part of the rail engineering vehicle, and the universal gear transmission system in the prior art consists of two gear boxes, namely a driving gear box with a single-input double-output structure and a driven gear box with a single-input single-output structure. At present, the railway engineering vehicle gearbox test is not explained in detail in the national standard, and the test is only required to be applicable to no-load tests. Along with the rapid development of domestic railway industry, the requirements on products are gradually improved, so that some host factories put forward the requirements of load tests, but two gear boxes need to be tested respectively according to the traditional test mode, each gear box adopts a method of butting two same gear boxes, only one gear box can be tested at a time, the test efficiency is low, the tooling is complex, and the requirements are not in accordance with the actual working conditions; according to the requirement of simultaneous load test of two gear boxes of a user, 5 motors are required to be equipped for realizing the load test, so that the cost of the test bed and the complexity of a control system are increased.
Therefore, aiming at the gear transmission system of the rail engineering vehicle, a load test device which is convenient to operate and control, high in efficiency and capable of meeting the actual working condition is developed, and the technical problem which needs to be solved by technical personnel in the field is formed.
Disclosure of Invention
In order to solve some or all technical problems in the prior art, the invention provides a load test device for a gear transmission system of a rail engineering vehicle, which comprises a driving motor, a main test torque sensor, a first universal coupling, a first driving gear box, a second universal coupling, a first driven gear box, a load motor, an auxiliary test torque sensor, a third universal coupling, a second driving gear box, a fourth universal coupling, a second driven gear box, a fifth universal coupling and a sixth universal coupling, wherein:
the driving motor, the main test torque sensor, the first universal coupling, the first driving gear box, the second universal coupling and the first driven gear box are sequentially and rigidly connected to form a main test unit;
the load motor, the test-accompanying torque sensor, the third universal coupling, the second driving gear box, the fourth universal coupling and the second driven gear box are sequentially and rigidly connected to form a test-accompanying unit;
the first driving gearbox comprises a first driving gearbox input shaft, a first driving gearbox first output shaft and a first driving gearbox second output shaft, and the first driven gearbox comprises a first driven gearbox input shaft and a first driven gearbox output shaft;
the second driving gearbox comprises a second driving gearbox input shaft, a second driving gearbox first output shaft and a second driving gearbox second output shaft, and the second driven gearbox comprises a second driven gearbox input shaft and a second driven gearbox output shaft;
the first output shaft of the first driving gear box and the input shaft of the first driven gear box are rigidly connected through a second universal coupling, the first output shaft of the second driving gear box and the input shaft of the second driven gear box are rigidly connected through a fourth universal coupling, the second output shaft of the first driving gear box and the output shaft of the second driven gear box are rigidly connected through a fifth universal coupling, and the second output shaft of the second driving gear box and the output shaft of the first driven gear box are rigidly connected through a sixth universal coupling.
Further, in the above load test device for the gear transmission system of the rail engineering truck, the first driving gear box further includes a first driving gear box pinion, a first driving gear box gearwheel, a first driving gear box bevel pinion, the first driven gear box further includes a first driven gear box bevel pinion and a first driven gear box bevel pinion, the second driving gear box further includes a second driving gear box pinion, a second driving gear box gearwheel, a second driving gear box bevel pinion, and the second driven gear box further includes a second driven gear box bevel pinion and a second driven gear box bevel pinion.
Further, in the load test device for the gear transmission system of the rail engineering truck, the secondary speed ratios of the first driving gear box bevel pinion, the first driven gear box bevel pinion, the second driving gear box bevel pinion, the second driven gear box bevel pinion and the second driven gear box bevel pinion are all the same, and the secondary speed ratios of the first driving gear box pinion, the first driving gear box gearwheel, the second driving gear box pinion and the second driving gear box gearwheel are all the same.
Further, in the load test device for the gear transmission system of the rail engineering truck, a locking disc is arranged between the second output shaft of the first driving gear box and the output shaft of the second driven gear box.
The load test device for the gear transmission system of the rail engineering vehicle adopts a split-flow transmission loading mode, can simultaneously carry out load tests on the single-input double-output driving gear box and the single-input single-output driven gear box in the gear transmission system by only using two motors, has high test efficiency, simple equipment, convenient operation and control and low cost, accords with the actual working condition, and effectively solves the technical problems in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
fig. 1 is a schematic structural diagram of a gear transmission system load test device of a rail engineering truck.
Fig. 2 is a schematic view of a transmission chain in the gear transmission system load test device of the rail engineering truck.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the load testing device for the gear transmission system of the rail engineering vehicle comprises: the device comprises a driving motor 1, a main test torque sensor 2, a first universal joint 3, a first driving gear box 4, a second universal joint 5, a first driven gear box 6, a load motor 7, an auxiliary test torque sensor 8, a third universal joint 9, a second driving gear box 10, a fourth universal joint 11, a second driven gear box 12, a fifth universal joint 13, a sixth universal joint 14 and a locking disc 15.
The first active gearbox 4 includes: the driving device comprises a first driving gear box input shaft 4-1, a first driving gear box pinion 4-2, a first driving gear box bull gear 4-3, a first driving gear box first output shaft 4-4, a first driving gear box bevel pinion 4-5, a first driving gear box bevel gear 4-6 and a first driving gear box second output shaft 4-7.
The first driven gearbox 6 includes: a first driven gearbox input shaft 6-1, a first driven gearbox bevel pinion 6-2, a first driven gearbox bevel gear 6-3, and a first driven gearbox output shaft 6-4.
The second active gearbox 10 includes: the driving mechanism comprises a second driving gear box input shaft 10-1, a second driving gear box pinion 10-2, a second driving gear box bull gear 10-3, a second driving gear box first output shaft 10-4, a second driving gear box bevel pinion 10-5, a second driving gear box bevel gear 10-6 and a second driving gear box second output shaft 10-7.
The second driven gear box 12 includes: a second driven gearbox input shaft 12-1, a second driven gearbox bevel pinion 12-2, a second driven gearbox bevel pinion 12-3, and a second driven gearbox output shaft 12-4.
The driving motor 1, the main test torque sensor 2, the first universal coupling 3, the first driving gear box 4, the second universal coupling 5 and the first driven gear box 6 are sequentially connected to form a main test unit, and the main test unit comprises two output shafts, namely a first driving gear box second output shaft 4-7 and a first driven gear box output shaft 6-4.
The load motor 7, the test accompanying torque sensor 8, the third universal coupling 9, the second driving gear box 10, the fourth universal coupling 11 and the second driven gear box 12 are sequentially connected to form a test accompanying unit, and the test accompanying unit comprises two output shafts, namely a second output shaft 10-7 of the second driving gear box and an output shaft 12-4 of the second driven gear box.
The first driving gearbox first output shaft 4-4 is connected to the first driven gearbox input shaft 6-1 via a second universal coupling 5 and the second driving gearbox first output shaft 10-4 is connected to the second driven gearbox input shaft 12-1 via a fourth universal coupling 11.
The first driving gearbox second output shaft 4-7 and the second driven gearbox output shaft 12-4 are connected by a fifth universal coupling 13, and the second driving gearbox second output shaft 10-7 and the first driven gearbox output shaft 6-4 are connected by a sixth universal coupling 14.
In the load test device for the gear transmission system of the rail engineering vehicle, the speed ratios of all bevel gear pairs are the same, namely: the secondary speed ratios of the first driving gearbox bevel pinion 4-5, the first driving gearbox bevel pinion 4-6, the first driven gearbox bevel pinion 6-2, the first driven gearbox bevel pinion 6-3, the second driving gearbox bevel pinion 10-5, the second driving gearbox bevel pinion 10-6, the second driven gearbox bevel pinion 12-2 and the second driven gearbox bevel pinion 12-3 are all the same. In addition, in the load test device for the gear transmission system of the rail engineering truck, the speed ratios of all the cylindrical gear pairs are the same, namely: the auxiliary speed ratios of the first driving gear box small gear 4-2, the first driving gear box big gear 4-3, the second driving gear box small gear 10-2 and the second driving gear box big gear 10-3 are all the same. Therefore, when the gear transmission system load test device of the railway engineering vehicle operates, the first driving gear box second output shaft 4-7 and the second driven gear box output shaft 12-4 which are connected through the fifth universal coupling 13, and the second driving gear box second output shaft 10-7 and the first driven gear box output shaft 6-4 which are connected through the sixth universal coupling 14 have rotating speeds and torques which are the same in magnitude and consistent in direction.
Because the second output shaft 4-7 of the first driving gearbox and the output shaft 12-4 of the second driven gearbox are connected through the fifth universal coupling 13, a transmission chain of the gear transmission system load test device of the rail engineering vehicle forms a closed loop, and a gear tooth phase difference is generated in the connection process, in the gear transmission system load test device of the rail engineering vehicle, a locking disc 15 is further arranged between the second output shaft 4-7 of the first driving gearbox and the output shaft 12-4 of the second driven gearbox, so that the connection part can be fastened after the teeth are aligned.
In addition, in the load test device for the gear transmission system of the rail engineering truck, all the components are connected in a rigid mode.
The load test device for the gear transmission system of the rail engineering truck provided by the invention is designed with two transmission chains (namely power transmission paths) by utilizing the characteristics of a transmission structure:
a first transmission chain: the first drive gearbox input shaft 4-1 → the first drive gearbox pinion 4-2 → the first drive gearbox bull gear 4-3 → the first drive gearbox first output shaft 4-4 → the first drive gearbox bevel pinion 4-5 → the first drive gearbox bevel gear 4-6 → the first drive gearbox second output shaft 4-7 → the second driven gearbox output shaft 12-4 → the second driven gearbox bevel gear 12-3 → the second driven gearbox bevel gear 12-2 → the second driven gearbox input shaft 12-1 → the second drive gearbox first output shaft 10-4 → the second drive gearbox bull gear 10-3 → the second drive gearbox pinion 10-2 → the second drive gearbox input shaft 10-1.
A second transmission chain: first drive gearbox input shaft 4-1 → first drive gearbox pinion 4-2 → first drive gearbox bull gear 4-3 → first drive gearbox first output shaft 4-4 → first driven gearbox input shaft 6-1 → first driven gearbox bevel gear 6-2 → first driven gearbox bevel gear 6-3 → first driven gearbox output shaft 6-4 → second drive gearbox second output shaft 10-7 → second drive gearbox bevel gear 10-6 → second drive gearbox bevel gear 10-5 → second drive gearbox first output shaft 10-4.
It can be seen that two drive chains, a first drive chain and a second drive chain, are formed between the first output shaft 4-4 of the first drive gearbox and the first output shaft 10-4 of the second drive gearbox. As the parts are connected in a rigid manner, the two transmission chains, namely the first transmission chain and the second transmission chain, have consistent rigidity, and uniform transmission load is ensured.
In summary, the load test device for the gear transmission system of the rail engineering vehicle adopts a split-flow transmission loading mode, only uses two motors to simultaneously perform load tests on the single-input and double-output driving gear box (i.e. the first driving gear box) and the single-input and single-output driven gear box (i.e. the first driven gear box) in the gear transmission system, and has the advantages of high test efficiency, simple equipment, convenience in operation and control, low cost and accordance with actual working conditions.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a track machineshop car gear drive system load test device which characterized in that, includes driving motor, main torque sensor, first universal coupling, first initiative gear box, second universal coupling, first driven gear box, load motor, accompany and try on torque sensor, third universal coupling, second initiative gear box, fourth universal coupling, second driven gear box, fifth universal coupling, sixth universal coupling, wherein:
the driving motor, the main test torque sensor, the first universal coupling, the first driving gear box, the second universal coupling and the first driven gear box are sequentially and rigidly connected to form a main test unit;
the load motor, the test-accompanying torque sensor, the third universal coupling, the second driving gear box, the fourth universal coupling and the second driven gear box are sequentially and rigidly connected to form a test-accompanying unit;
the first driving gearbox comprises a first driving gearbox input shaft, a first driving gearbox first output shaft and a first driving gearbox second output shaft, and the first driven gearbox comprises a first driven gearbox input shaft and a first driven gearbox output shaft;
the second driving gearbox comprises a second driving gearbox input shaft, a second driving gearbox first output shaft and a second driving gearbox second output shaft, and the second driven gearbox comprises a second driven gearbox input shaft and a second driven gearbox output shaft;
the first output shaft of the first driving gear box and the input shaft of the first driven gear box are rigidly connected through a second universal coupling, the first output shaft of the second driving gear box and the input shaft of the second driven gear box are rigidly connected through a fourth universal coupling, the second output shaft of the first driving gear box and the output shaft of the second driven gear box are rigidly connected through a fifth universal coupling, and the second output shaft of the second driving gear box and the output shaft of the first driven gear box are rigidly connected through a sixth universal coupling.
2. The rail mill car gear drive system load testing apparatus of claim 1, wherein the first drive gearbox further comprises a first drive gearbox pinion, a first drive gearbox bull gear, a first drive gearbox bevel pinion, the first driven gearbox further comprises a first driven gearbox bevel pinion and a first driven gearbox bevel pinion, the second drive gearbox further comprises a second drive gearbox pinion, a second drive gearbox bull gear, a second drive gearbox bevel pinion, and a second driven gearbox bevel pinion.
3. The rail transit vehicle gear transmission system load testing device of claim 2, wherein the first drive gearbox bevel pinion, the first driven gearbox bevel pinion, the second drive gearbox bevel pinion, the second driven gearbox bevel pinion, and the second driven gearbox bevel pinion have the same secondary speed ratio, and the first drive gearbox pinion, the first drive gearbox gearwheel, the second drive gearbox pinion, and the second drive gearbox gearwheel have the same secondary speed ratio.
4. The rail mill vehicle gear transmission system load testing device according to claim 1, characterized in that a locking disc is arranged between the second output shaft of the first driving gearbox and the output shaft of the second driven gearbox.
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| CN202111375117.4A CN114279702B (en) | 2021-11-18 | 2021-11-18 | Load test device for gear transmission system of track engineering vehicle |
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| CN202111375117.4A CN114279702B (en) | 2021-11-18 | 2021-11-18 | Load test device for gear transmission system of track engineering vehicle |
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| CN114279702B (en) | 2024-04-16 |
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