CN110617977A - Train braking test bed with on-rail running capability - Google Patents
Train braking test bed with on-rail running capability Download PDFInfo
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- CN110617977A CN110617977A CN201911018340.6A CN201911018340A CN110617977A CN 110617977 A CN110617977 A CN 110617977A CN 201911018340 A CN201911018340 A CN 201911018340A CN 110617977 A CN110617977 A CN 110617977A
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- wheel
- speed reducer
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- frame
- transmission
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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
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to the field of train braking, and particularly discloses a train braking test bed with on-rail running capability, which comprises a main body, a frame and a pantograph, wherein the main body is provided with a plurality of guide rails; the main body comprises a supporting plate, a mounting frame, a driving motor, a load motor, a first speed reducer, a second speed reducer, a driving wheel set, a driven wheel set, a transmission module and a battery module; the middle of the mounting frame is provided with a mounting plate, one end of the mounting plate extends to form a first wheel frame, and the other end of the mounting plate extends to form a second wheel frame; the first wheel frame and the second wheel frame are respectively connected with the supporting plate through supporting columns; the driving motor, the load motor, the first speed reducer, the second speed reducer and the battery module are respectively arranged on the mounting plate; the driving wheel set is arranged on the first wheel carrier through a bearing; the driven wheel set is mounted on the second wheel carrier through a bearing. The test bed can improve the controllability of a train braking test and simultaneously reduce the reduction of braking force caused by long-time air braking.
Description
Technical Field
The invention relates to the field of train braking, in particular to a train braking test bed with on-rail running capability.
Background
The braking capability is the most important safety guarantee for the safe operation of the train, and the conventional physical test mainly comprises a train braking test bed and an actual on-track test carried out by the train. The two are usually constructed separately, resulting in increased cost.
The quality of a train braking system determines whether the whole train is safe or not, and the method is an important guarantee for safe operation of the train. At present, high-speed trains in various countries in the world mostly adopt an electric and air composite braking mode, but the electric and air composite braking mode has the defect that the defect cannot be avoided, noise, vibration and mechanical abrasion caused by friction of brake shoes can occur during braking, the equipment maintenance cost is increased, the service life of equipment is reduced, meanwhile, the problems of braking force reduction, poor controllability and the like can also be caused by long-time air braking, and if the trains can adopt pure electric braking, the problems can be basically solved, so that the electric braking of the trains is the current key research project.
However, most of the existing train braking test beds adopt an electric and air composite braking mode, the test mode is single, the actual test on the rail cannot be met, and the test data is not accurate and real enough.
Disclosure of Invention
The invention aims to provide a train braking test bed with on-rail running capability, which can realize the train braking test in a wheel suspension mode and can also be placed on a train track to carry out the train braking test, so that the test data is real and reliable.
In order to solve the technical problem, the invention provides a train braking test bed with on-rail running capability, which comprises a main body, a frame and a pantograph, wherein the frame is arranged on the main body;
the main body comprises a supporting plate, a mounting frame, a driving motor, a load motor, a first speed reducer, a second speed reducer, a driving wheel set, a driven wheel set, a transmission module and a battery module;
the middle of the mounting frame is provided with a mounting plate, one end of the mounting plate extends to form a first wheel frame, and the other end of the mounting plate extends to form a second wheel frame; the first wheel frame and the second wheel frame are respectively connected with the supporting plate through supporting columns;
the driving motor, the load motor, the first speed reducer, the second speed reducer and the battery module are respectively arranged on the mounting plate;
an input shaft of the first speed reducer is connected with a rotating shaft of the driving motor through a coupler, and an output shaft of the first speed reducer is connected with the driving wheel set through a transmission module;
an input shaft of the second speed reducer is connected with a rotating shaft of the load motor through a coupler, and an output shaft of the second speed reducer is connected with the driving wheel set through a transmission module;
the driving wheel set is arranged on the first wheel carrier through a bearing;
the driven wheel set is arranged on the second wheel carrier through a bearing, and a mechanical braking device is arranged on the driven wheel set;
the battery module is respectively and electrically connected with the driving motor, the load motor, the mechanical braking device and the pantograph.
Preferably, the driving wheel set comprises two driving wheels and a first connecting rod connecting the two driving wheels.
As a preferred scheme, the transmission module comprises a first transmission wheel, a second transmission wheel, a third transmission wheel, a fourth transmission wheel, a first transmission chain and a second transmission chain; the first driving wheel is arranged on an output shaft of the first speed reducer; the second driving wheel and the third driving wheel are arranged on the first connecting rod; the fourth transmission wheel is arranged on an output shaft of the second speed reducer; the first driving wheel is connected with the second driving wheel through a first driving chain; and the fourth driving wheel is connected with the third driving wheel through a second driving chain.
Preferably, the load motor is replaced by a magnetic particle brake, and the second speed reducer is replaced by a dynamic torque sensor; the magnetic powder brake is connected with the dynamic torque sensor through a coupler, and the dynamic torque sensor is connected with the transmission module through the coupler.
Preferably, the number of the battery modules is two.
Preferably, the driven wheel set comprises two driven wheels and a second connecting rod connecting the two driven wheels.
Preferably, the two mechanical braking devices are respectively arranged on the second connecting rod.
The invention has the following beneficial effects:
(1) the train braking test bed with the on-rail running capability suspends the mounting frame through the support columns, so that the driving wheel set and the driven wheel set are suspended, the energy is supplied by the battery module, the driving motor drives the wheels to rotate through the transmission module, the driving wheel set and the driven wheel set serve as inertial loads, the load motor generates load moment to simulate resistance in train running, the mechanical braking device brakes to complete suspension mode testing, the space is saved, and the cost is low and the efficiency is high.
(2) According to the train braking test bed with the on-rail running capability, the mounting frame is separated from the support column, the driving wheel set and the driven wheel set are placed on the rail, the actual test of the test platform on the rail is realized through the energy supply of the pantograph and the battery module, the actual working condition of the test platform is the same as that of the train running, and the train running can be simulated truly and accurately.
(3) The train brake test bed with the on-rail running capability can reduce noise, vibration and mechanical wear caused by friction of brake shoes during braking, reduce the maintenance cost of equipment, prolong the service life of the equipment, improve the controllability and reduce the problem of brake force reduction caused by long-time air braking.
Drawings
Fig. 1 is a schematic structural diagram of a main body of a train braking test bed with on-track running capability according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pantograph of a train braking test bed with on-track running capability according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another main body of the train brake test stand with on-track running capability according to the embodiment of the present invention.
Reference numerals: 1. a support plate; 2. a mounting frame; 3. a drive motor; 4. a load motor; 5. a first decelerator; 6. a second decelerator; 7. a drive wheel; 8. a first connecting rod; 9. a driven wheel; 10. a second connecting rod; 11. a magnetic powder brake; 12. a battery module; 13. a first wheel carrier; 14. a second wheel carrier; 15. a mechanical braking device; 16. a pantograph; 17. a frame; 18. a first drive pulley; 19. a second transmission wheel; 20. a third transmission wheel; 21. a fourth transmission wheel; 22. a first drive chain; 23. a second drive chain; 24. a coupling; 25. a dynamic torque sensor; 26. and (4) a support column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1 and 2, a train braking test bed with on-track running capability in a preferred embodiment of the invention comprises a main body, a frame 17 and a pantograph 16, wherein the frame 17 is installed on the main body, and the pantograph 16 is installed on the frame 17;
the main body comprises a supporting plate 1, a mounting frame 2, a driving motor 3, a load motor 4, a first speed reducer 5, a second speed reducer 6, a driving wheel set, a driven wheel set, a transmission module and a battery module 12;
a mounting plate is arranged in the middle of the mounting frame 2, a first wheel carrier 13 extends from one end of the mounting plate, and a second wheel carrier 14 extends from the other end of the mounting plate; the first wheel frame 13 and the second wheel frame 14 are respectively connected with the supporting plate 1 through supporting columns 26;
the driving motor 3, the load motor 4, the first speed reducer 5, the second speed reducer 6 and the battery module 12 are respectively arranged on the mounting plate;
an input shaft of the first speed reducer 5 is connected with a rotating shaft of the driving motor 3 through a coupling 24, and an output shaft of the first speed reducer 5 is connected with a driving wheel set through a transmission module;
an input shaft of the second speed reducer 6 is connected with a rotating shaft of the load motor 4 through a coupling 24, and an output shaft of the second speed reducer 6 is connected with the driving wheel set through a transmission module;
the driving wheel set is arranged on the first wheel carrier 13 through a bearing;
the driven wheel set is arranged on the second wheel carrier 14 through a bearing, and a mechanical braking device 15 is arranged on the driven wheel set;
the battery module 12 is electrically connected to the driving motor 3, the load motor 4, the mechanical brake device 15, and the pantograph 16, respectively.
Specifically, the embodiment of the present invention includes two test modes:
(1) suspension mode: the mounting frame 2 is suspended through the supporting columns 26, so that the driving wheel set and the driven wheel set are suspended, energy is supplied by the battery module 12, the driving motor 3 drives the driving path resistor to rotate through the transmission module, the driving wheel set drives the driven wheel set to rotate, the driving wheel set and the driven wheel set serve as inertial loads, the load motor 4 generates load moment to simulate resistance in the running process of a train, the driven wheel set is braked through the mechanical braking device 15, the test of a suspended mode is completed, space is saved, cost is low, and efficiency is high;
(2) actual mode of placement onto the track: through with mounting bracket 2 in the separation of support column 26 to on placing the track with drive wheelset and driven wheelset, through the energy supply of pantograph 16 with battery module 12, realize the actual test of test platform on the track, can accomplish the same with train operation operating condition, really, accurately simulate train operation.
In addition, the test platform of the preferred embodiment of the invention can reduce noise, vibration and mechanical abrasion generated by friction of the brake shoes during braking, reduce the maintenance cost of the equipment, prolong the service life of the equipment, improve the controllability and reduce the problem of braking force reduction caused by long-time air braking.
In the present embodiment, the drive wheel set comprises two drive wheels 7 and a first connecting rod 8 connecting the two drive wheels 7.
In the embodiment of the present invention, the transmission module includes a first transmission wheel 18, a second transmission wheel 19, a third transmission wheel 20, a fourth transmission wheel 21, a first transmission chain 22 and a second transmission chain 23; the first driving wheel 18 is arranged on an output shaft of the first speed reducer 5; the second driving wheel 19 and the third driving wheel 20 are arranged on the first connecting rod 8; the fourth transmission wheel 21 is arranged on an output shaft of the second speed reducer 6; the first transmission wheel 18 is connected with a second transmission wheel 19 through a first transmission chain 22; the fourth transmission wheel 21 is connected with the third transmission wheel 20 through a second transmission chain 23.
Specifically, the driving motor 3 drives a first driving wheel 18 to rotate through a first speed reducer 5, the first driving wheel 18 drives a second driving wheel 19 to rotate through a first driving chain 22, the second driving wheel 19 drives a first connecting rod 8 to rotate, and the first connecting rod 8 drives a driving wheel 7 and a third driving wheel 20 to rotate; the load motor 4 drives the fourth transmission wheel 21 to rotate through the second speed reducer 6, when the fourth transmission wheel 21 is controlled to rotate in the same direction as the third transmission wheel 20, the fourth transmission wheel 21 drives the third transmission wheel 20 to rotate through the second transmission chain 23, at the moment, the load motor 4 also plays a driving role, when the fourth transmission wheel 21 is controlled to rotate in the opposite direction to the third transmission wheel 20, the fourth transmission wheel 21 restricts the third transmission wheel 20 to rotate through the second transmission chain 23, and at the moment, the load battery plays a restriction role. When the braking test bed moves on the rail by adopting the transmission chain, the relative displacement between the output shaft of the speed reducer and the driving wheel 7 caused by vibration can be supplemented, so that the test platform is protected from being damaged, and the test result is not influenced.
In the embodiment of the present invention, two battery modules 12 are provided.
In the embodiment of the present invention, the driven wheel set includes two driven wheels 9 and a second connecting rod 10 connecting the two driven wheels 9.
In the embodiment of the present invention, two mechanical braking devices 15 are provided, and are respectively mounted on the second connecting rod 10.
Example 2:
referring to fig. 3, in the preferred embodiment of the present invention, a train brake test stand with on-rail running capability is provided, in which the load motor 4 described in embodiment 1 is replaced by a magnetic particle brake 11, and the second speed reducer 6 described in embodiment 1 is replaced by a dynamic torque sensor 25; the magnetic powder brake 11 is connected with a dynamic torque sensor 25 through a coupler 24, and the dynamic torque sensor 25 is connected with a transmission module through the coupler 24.
Specifically, the resistance torque of the magnetic powder brake 11 is collected through the dynamic torque sensor 25, the load motor 4 is replaced through the magnetic powder brake 11, the load torque is generated, the resistance in the running process of a train is simulated, and the device has the advantages of being high in response speed, simple in structure, free of pollution, noise and impact vibration and energy saving.
It is worth to say that the magnetic powder brake 11 is electrically connected to the battery module.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a have train braking test bench of on-orbit operational capability concurrently which characterized in that: the pantograph type pantograph comprises a main body, a frame and a pantograph, wherein the frame is arranged on the main body, and the pantograph is arranged on the frame;
the main body comprises a supporting plate, a mounting frame, a driving motor, a load motor, a first speed reducer, a second speed reducer, a driving wheel set, a driven wheel set, a transmission module and a battery module;
the middle of the mounting frame is provided with a mounting plate, one end of the mounting plate extends to form a first wheel frame, and the other end of the mounting plate extends to form a second wheel frame; the first wheel frame and the second wheel frame are respectively connected with the supporting plate through supporting columns;
the driving motor, the load motor, the first speed reducer, the second speed reducer and the battery module are respectively arranged on the mounting plate;
an input shaft of the first speed reducer is connected with a rotating shaft of the driving motor through a coupler, and an output shaft of the first speed reducer is connected with the driving wheel set through a transmission module;
an input shaft of the second speed reducer is connected with a rotating shaft of the load motor through a coupler, and an output shaft of the second speed reducer is connected with the driving wheel set through a transmission module;
the driving wheel set is arranged on the first wheel carrier through a bearing;
the driven wheel set is arranged on the second wheel carrier through a bearing, and a mechanical braking device is arranged on the driven wheel set;
the battery module is respectively and electrically connected with the driving motor, the load motor, the mechanical braking device and the pantograph.
2. The train brake test bed with on-track running capability of claim 1, wherein the driving wheel set comprises two driving wheels and a first connecting rod for connecting the two driving wheels.
3. The train brake test bed with the on-track running capability as claimed in claim 2, wherein the transmission module comprises a first transmission wheel, a second transmission wheel, a third transmission wheel, a fourth transmission wheel, a first transmission chain and a second transmission chain; the first driving wheel is arranged on an output shaft of the first speed reducer; the second driving wheel and the third driving wheel are arranged on the first connecting rod; the fourth transmission wheel is arranged on an output shaft of the second speed reducer; the first driving wheel is connected with the second driving wheel through a first driving chain; and the fourth driving wheel is connected with the third driving wheel through a second driving chain.
4. The train brake test bed with on-rail running capability of claim 1, wherein the load motor is replaced by a magnetic powder brake, and the second speed reducer is replaced by a dynamic torque sensor; the magnetic powder brake is connected with the dynamic torque sensor through a coupler, and the dynamic torque sensor is connected with the transmission module through the coupler.
5. The train brake test bed with on-rail running capability according to claim 1, wherein two battery modules are provided.
6. The train brake test bed with the on-track running capability as claimed in claim 1, wherein the driven wheel set comprises two driven wheels and a second connecting rod for connecting the two driven wheels.
7. The train brake test bed with the on-rail running capability as claimed in claim 6, wherein two mechanical brake devices are provided and are respectively mounted on the second connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911018340.6A CN110617977A (en) | 2019-10-24 | 2019-10-24 | Train braking test bed with on-rail running capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911018340.6A CN110617977A (en) | 2019-10-24 | 2019-10-24 | Train braking test bed with on-rail running capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110617977A true CN110617977A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911018340.6A Pending CN110617977A (en) | 2019-10-24 | 2019-10-24 | Train braking test bed with on-rail running capability |
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| Country | Link |
|---|---|
| CN (1) | CN110617977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029609A (en) * | 2021-02-01 | 2021-06-25 | 中车青岛四方机车车辆股份有限公司 | Dynamic test system of magnetic track brake |
| CN116519340A (en) * | 2023-04-21 | 2023-08-01 | 石家庄铁道大学 | Train operation performance test bed under aerodynamic force effect |
-
2019
- 2019-10-24 CN CN201911018340.6A patent/CN110617977A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029609A (en) * | 2021-02-01 | 2021-06-25 | 中车青岛四方机车车辆股份有限公司 | Dynamic test system of magnetic track brake |
| CN116519340A (en) * | 2023-04-21 | 2023-08-01 | 石家庄铁道大学 | Train operation performance test bed under aerodynamic force effect |
| CN116519340B (en) * | 2023-04-21 | 2023-12-12 | 石家庄铁道大学 | Train operation performance test bed under aerodynamic force effect |
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