CN204085909U - A kind of novel steering frame brake test machine - Google Patents
A kind of novel steering frame brake test machine Download PDFInfo
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- CN204085909U CN204085909U CN201420427035.9U CN201420427035U CN204085909U CN 204085909 U CN204085909 U CN 204085909U CN 201420427035 U CN201420427035 U CN 201420427035U CN 204085909 U CN204085909 U CN 204085909U
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Abstract
The utility model relates to a kind of novel railway passenger car bogie brake test machine, and it is applicable to various motor train unit, city rail vehicle, railcar.Because bogie is up to 3 brake pipings (front and back wheel is to each, tread cleaner one), after the utility model connects the pipeline on bogie, exporting the running of the sensor in gas circuit by controlling controller, braking gas circuit, three separate output gas circuits and each bar, automatically realizing the performance tests such as the air pipe line impermeability of bogie brake system, braking maneuver, fast row, slow row.Relative to prior art, the utility model bogie brake test machine test accuracy is high, test efficiency is high, and its bogie being convenient to nearly 3 pipe systems is tested.
Description
Technical field
The utility model relates to a kind of mechanical structure field, particularly relates to a kind of rail truck passenger vehicle novel steering frame brake test machine.
Background technology
At present, various configuration in railroad truck brake test machine is generally made up of air inlet pipeline, filtrator, loading line, pointer pressure and switch module.Described air inlet pipeline, filtrator and loading line are communicated with successively and connect, and only have a braking gas source outlet; Described pointer pressure is arranged in loading line, and described switch module is electrically connected the work to control air inlet pipeline with air inlet pipeline.When using existing bogie brake test machine, first by manually opening switch module, air is made to enter into testing machine inner air path from air inlet pipeline, air enters in bogie air pipe line through loading line again after filter-press, when naked eye tensimeter confirms that bogie air pipe line inner air reaches the force value of specifying, artificial Closing Switch carries out correlation test to bogie, and records data.But because the tensimeter numerical value of naked eye exists reading error, and the loop of existing brake test machine independence air feed only has one, cause existing brake test machine function singleness, work efficiency low, easily cause erroneous judgement.And because bogie brake test is of crucial importance, need repeatedly revision test (as 5 times), existing each test figure all adopts hand-kept, has had a strong impact on test progress, be also easy to cause human error simultaneously.
Utility model content
The purpose of this utility model is the shortcoming and defect in order to solve above-mentioned prior art, provide a kind of reduce bogie pipeline air-tightness difficulty of test, improve test accuracy and test efficiency, be convenient to the bogie of nearly 3 pipe systems and test.
The utility model is achieved through the following technical solutions: a kind of novel steering frame brake test machine, comprises testing machine casing, and is arranged in testing machine casing the air inlet pipeline, the braking gas circuit and always export gas circuit that are communicated with successively and connect; Further, also comprise controller, and total gas circuit that exports comprises three separate output gas circuits; Each bar exports in gas circuit and is all provided with one for detecting the sensor of its air pressure inside; The sensor electrical that described controller exports in gas circuit with braking gas circuit and each bar is respectively connected.
By the output of braking gas circuit is divided into three separate output gas circuits, make the utility model bogie brake test facility have three separate air feed loops, the bogie be convenient to having nearly 3 pipelines is tested; By being arranged on the sensor in each bar output gas circuit, the air pressure exported in gas circuit is measured, and air pressure is adjusted by the controller nonstick system of control duty that road and each bar export gas circuit of taking offence according to measurement result, thus the output pressure value making each bar export gas circuit reaches testing requirements, meet test needs, reduce difficulty of test, improve test accuracy and test efficiency.
Described controller exports the air pressure signal adjustment braking gas circuit of the sensor in gas circuit and the duty of each bar output gas circuit, to realize controlling the process of brake test and testing according to each bar.By sensor, the air pressure that each bar exports in gas circuit is measured, and air pressure signal is fed back in controller, controller constantly adjusts the duty of braking gas circuit and each bar output gas circuit according to air pressure signal, the air pressure making each bar export gas circuit reaches the air pressure level of bogie pipeline air-tightness test request, further increase test accuracy of the present utility model, make the utility model have increasingly automated performance, greatly meet the testing requirements of bogie pipeline.
The utility model also comprises display; Described display is electrically connected with controller, and the air pressure signal that the sensor in each bar output gas circuit records is converted into atmospheric pressure value by described controller, and is sent to display, is shown by display.By display, be conducive to testing crew and test figure is monitored in real time, and Problems existing in Timeliness coverage test.
Described air inlet pipeline comprises hydraulic quick coupler, a stop valve and a filtrator for being communicated with external air source; Described hydraulic quick coupler, stop valve and filtrator are communicated with successively by pipeline and connect.By stop valve, being conducive to controlling air mass flow, avoiding the harmful effect that the air because entering in air inlet pipeline too much and to test produces; By filtrator, be conducive to the impurity in filtering air, avoid the harmful effect that the impurity in air too much and to test produces.
Described braking gas circuit comprises the first braking gas circuit, the second braking gas circuit, the 3rd braking gas circuit and electromagnetic valve component; Described first braking gas circuit comprises the first reduction valve, and described second braking gas circuit comprises the second reduction valve, and described 3rd braking gas circuit comprises supercharge pump assembly, and described electromagnetic valve component comprises the first two position three-way valve, the second two position three-way valve and a three position five-way valve; The import of described first reduction valve, the second reduction valve and supercharge pump assembly respectively with the outlet of filtrator; And the first reduction valve is communicated with exhausr port with the air intake opening of the first two position three-way valve respectively with the outlet of the second reduction valve, the gas outlet of the first two position three-way valve is communicated with exhausr port with the air intake opening of the second two position three-way valve respectively with the gas outlet of supercharge pump assembly; And described first two position three-way valve, the second two position three-way valve and three position five-way valve are electrically connected with described controller respectively, the air pressure signal recorded according to the sensor in each bar output gas circuit by controller adjusts its duty.Arrange herein and achieve that controller pressurizes to the air pressure in braking gas circuit, pressurize or reduced pressure treatment, air pressure required when being convenient to Adjustment Tests.
Described electromagnetic valve component also comprises an exhaust shutter; Described exhaust shutter is communicated with the exhausr port of described three position five-way valve and connects.By exhaust shutter, control the air capacity of braking gas circuit, be conducive to slow row's test that brake test machine carries out certain type bogie, meet multi-functional needs.
Described three output gas circuits are respectively the first output gas circuit, and second exports gas circuit and the 3rd exports gas circuit; Described first exports gas circuit comprises the first two position two-way valve and is arranged on the first sensor in the first two position two-way valve exit; Described second exports gas circuit comprises the second two position two-way valve and is arranged on second sensor in the second two position two-way valve exit; Described 3rd exports gas circuit comprises the 3rd two position two-way valve and is arranged on the 3rd sensor in the 3rd two position two-way valve exit; Described first two position two-way valve, the second two position two-way valve and the 3rd two position two-way valve entrance be communicated with the gas outlet of described three position five-way valve respectively, and be electrically connected with controller respectively, and control its duty respectively by the air pressure signal of controller respectively measured by first sensor, the second sensor and the 3rd sensor.Setting herein achieves controller and carries out controlling and adjustment to the duty that first exports gas circuit, the second output gas circuit and the 3rd output gas circuit, is convenient to detect each bar and exports the air pressure in gas circuit and monitor the process of the test of each bar output gas circuit and adjust.
The utility model also comprises printer; Described printer setup in testing machine casing, and is electrically connected with controller.By printer, the test figure that the memory module in controller stores is printed, there is objectivity, avoid occurring artificial fakement phenomena.
The utility model also comprises for pointing out test findings underproof alarm; Described alarm is electrically connected with controller, and the test findings obtained by the information of voltage process of controller respectively measured by first sensor, the second sensor and the 3rd sensor controls its duty.By alarm, be conducive to testing crew and learn test findings in time, when test findings is defective, is conducive to warning testing crew and stops test in time, and again test, improve test efficiency.
In order to understand better and implement, describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the front elevation of the utility model novel steering frame brake test machine;
Fig. 2 is the side view of the utility model novel steering frame brake test machine;
Fig. 3 is the braking gas circuit pneumatic schematic diagram of the utility model novel steering frame brake test machine;
Fig. 4 is the structural representation of air inlet pipeline of the present utility model;
Fig. 5 is the structural representation of braking gas circuit of the present utility model;
Fig. 6 is the structural representation that the utility model always exports gas circuit.
Embodiment
Please refer to Fig. 1, Fig. 2 and Fig. 3, the utility model novel steering frame brake test machine comprises testing machine casing 1, is arranged in testing machine casing 1 and is communicated with air inlet pipeline 2, braking gas circuit 3 and the total output gas circuit 4 and controller, display and printer that connect successively.Described controller is arranged in testing machine casing 1; Described display is embedded on testing machine casing 1 surface; Described printer setup is in testing machine casing 1; Described controller respectively with described braking gas circuit 3, always export gas circuit 4, display and printer and be electrically connected, controller controls according to total pipeline air pressure signal exported in gas circuit 4 and adjusts braking gas circuit 3 and total duty exporting gas circuit 4, thus total air pressure exporting gas circuit 4 is adjusted, realize the control to brake test process and test, its air pressure signal feeds back in controller by total output gas circuit 4, controller carries out storing and air pressure signal being converted to atmospheric pressure value, and be delivered to display, show test figure by display; Printer is electrically connected with the memory module in controller simultaneously, to read data when needing to print, test figure is printed.
Particularly, please refer to Fig. 4, described air inlet pipeline 2 comprises one for hydraulic quick coupler 21, stop valve 22 that is communicated with external air source A and a filtrator 23; Described hydraulic quick coupler 21, stop valve 22 and filtrator 23 are communicated with successively by pipeline and connect; The inflow point of described hydraulic quick coupler 21 is provided with the switch electromagnetic valve be electrically connected with controller.
Please refer to Fig. 5, described braking gas circuit 3 comprises the first braking gas circuit 31, second and brakes gas circuit 32, the 3rd braking gas circuit 33 and electromagnetic valve component 34; Described first braking gas circuit 31 comprises the first reduction valve 311, described second braking gas circuit 32 comprises the second reduction valve 321, described 3rd braking gas circuit 33 comprises supercharge pump assembly, and described electromagnetic valve component 34 comprises the first two position three-way valve 341, second two position three-way valve 342 and three position five-way valve 343; The import of described first reduction valve 311, second reduction valve 321 and supercharge pump assembly respectively with the outlet of filtrator 23; And the first reduction valve 311 is communicated with exhausr port with the air intake opening of the first two position three-way valve 341 respectively with the outlet of the second reduction valve 321, the gas outlet of the first two position three-way valve 341 is communicated with exhausr port with the air intake opening of the second two position three-way valve 342 respectively with the gas outlet of supercharge pump assembly; And described first two position three-way valve 341, second two position three-way valve 342 and three position five-way valve 343 are electrically connected with described controller respectively, control its duty by controller, and the air pressure signal recorded according to the sensor in each braking gas circuit by controller adjusts its duty.Wherein, the first two position three-way valve 341 has solenoid DF3; Second two position three-way valve 342 has solenoid DF2; Three position five-way valve 343 has solenoid DF7 and solenoid DF1.
Described supercharge pump assembly comprises the filtrator 331, reduction valve 332, stop valve 333, forcing pump 334, gas tank 335, surplus valve 336, reduction valve 337 and the stop valve 338 that are communicated with successively and connect, also namely, filtrator 331 import and outlet respectively with the outlet of the filtrator 23 in air inlet pipeline 2 and the inlet communication of reduction valve 332; The outlet of reduction valve 332 is by the inlet communication of stop valve 333 with forcing pump 334; The outlet of forcing pump 334 simultaneously with the outlet of the filtrator 23 in air inlet pipeline 2 and the inlet communication of gas tank 335; The outlet of gas tank 335 is by the inlet communication of surplus valve 336 with reduction valve 337, and the outlet of reduction valve 337 is communicated with by the exhausr port of stop valve 338 with the second two position three-way valve 342.
Further, in order to effectively control the air capacity of braking gas circuit 3, being conducive to slow row's test that brake test machine carries out certain type bogie, meeting multi-functional needs, as a kind of more excellent technical scheme, described electromagnetic valve component 34 also comprises an exhaust shutter 344; Described exhaust shutter 344 is communicated with the exhausr port of described three position five-way valve 343 and connects.
Further, for the ease of fault detect, as a kind of more excellent technical scheme, described first braking gas circuit 31 is also provided with a pressure gauge 312, and this pressure gauge 312 is arranged on the exit of the first reduction valve 311; Described second braking gas circuit 32 is also provided with a pressure gauge 321, and this pressure gauge 321 is arranged on the exit of the second reduction valve 321; Be provided with pressure gauge 33a between described reduction valve 332 and stop valve 333, between described gas tank 335 and surplus valve 336, be provided with pressure gauge 33b, between described reduction valve 337 and stop valve 338, be provided with pressure gauge 33c.
Please refer to Fig. 6, described total output gas circuit 4 comprises three separate output gas circuits; Each bar exports in gas circuit and is all provided with one for detecting the sensor of its air pressure inside; The sensor electrical that described controller exports in gas circuit with each solenoid valve in braking gas circuit 3 and each bar is respectively connected.Particularly, described three output gas circuits are respectively the first output gas circuit 41, second and export gas circuit 42 and the 3rd output gas circuit 43; Described first exports gas circuit 41 comprises the first two position two-way valve 411 and is arranged on the first sensor 412 in the first two position two-way valve 411 exit; Described second exports gas circuit 42 comprises the second two position two-way valve 421 and is arranged on the second two position two-way valve 421 exit second sensor 422; Described 3rd exports gas circuit 43 comprises the 3rd two position two-way valve 431 and is arranged on the 3rd two position two-way valve 431 exit the 3rd sensor 432; Described first two position two-way valve 411, second two position two-way valve 421 and the 3rd two position two-way valve 431 entrance be communicated with the gas outlet of described three position five-way valve 343 respectively, and be electrically connected with controller respectively, and control its duty respectively by the air pressure signal of controller respectively measured by first sensor 412, second sensor 422 and the 3rd sensor 432.When starting working, each valve that described controller controls in braking gas circuit 3 carries out work, export the duty of each valve in the air pressure signal adjustment braking gas circuit 3 of the sensor in gas circuit simultaneously according to each bar and control the duty that each bar exports the valve in gas circuit, to realize controlling the process of brake test and testing; Meanwhile, the air pressure signal that the sensor in each bar output gas circuit records is converted into atmospheric pressure value by described controller, and is sent to display, shows test figure by display.Wherein, the first two position two-way valve 411 has solenoid DF6; Second two position two-way valve 421 has solenoid DF5; 3rd two position two-way valve 431 has solenoid DF4.
Further, export in gas circuit whether there is fault for the ease of judging, and be convenient to detect first sensor 412, second sensor 422 and the 3rd sensor 432 and whether break down, as a kind of more excellent technical scheme, between described first two position two-way valve 411 and first sensor 412, be provided with pressure gauge 413; Pressure gauge 423 is provided with between described second two position two-way valve 421 and the second sensor 422; Pressure gauge 433 is provided with between described 3rd two position two-way valve 431 and the 3rd sensor 432.
Test findings is learnt in time in order to allow testing crew, and when test findings is defective, testing crew can be warned and stop test in time, and again test, further raising test efficiency, as a kind of more excellent technical scheme, the utility model also comprises one for pointing out test findings underproof alarm 5.Described alarm 5 is embedded on testing machine casing 1 surface, and be electrically connected with controller, and the test findings obtained by the information of voltage process of controller respectively measured by first sensor 412, second sensor 422 and the 3rd sensor 432 controls its duty.
Clearly know that in order to allow staff which exports gas circuit and is in just in working order, which exports gas circuit and is in idle state, be convenient to arrangement and the test operation to exporting gas circuit, as a kind of more excellent technical scheme, the utility model also comprises three pilot lamp 6 be embedded on described testing machine casing 1 surface; Described three pilot lamp 6 export gas circuit one_to_one corresponding with described three respectively, and it is electrically connected with controller respectively, by the duty of controller three pilot lamp 6 according to the working state control of first sensor 412, second sensor 422 and the 3rd sensor 432, to show the duty of the output gas circuit corresponding with it.
Further, conveniently move the utility model novel steering frame brake test machine, as a kind of more excellent technical scheme, described test casing bottom even is provided with four reverse wheels 7.
In order to simplify structure of the present utility model, increase function of the present utility model further, as a kind of more excellent technical scheme, described controller and display can be replaced a computing machine 8, also be, described controller is the cpu controller in computing machine 8, described display is the display screen in computing machine 8, then the memory module in controller is the storer in computing machine 8.The duty of this computing machine 8 is by a switch control section, this switch control section comprises the key switch 91 and stop button 92 that are embedded respectively in chamber surface, described key switch 91 and stop button 92 are electrically connected respectively with computing machine 8, with the beginning of process of the test in computer for controlling 8 or stopping.
The use procedure of the utility model novel steering frame brake test machine is as follows:
When starting to test, first open key switch 91 with key, start up system also opens test routine, air is input into the air inlet pipeline 2 of brake test machine inside from the input port 2A of air inlet pipeline 2 by source of the gas, after filtrator 23 filters, computing machine 8 controls each solenoid valve (as the first two position three-way valve 341, three position five-way valve 343) in the break-make of solenoid make the delivery outlet 41A of the first output gas circuit 41, the delivery outlet 42A of the second output gas circuit 42, 3rd output pressure exporting the delivery outlet 43A of gas circuit 43 reaches testing requirements, then, air input redirect frame pipeline is tested.Because 3 air feed loops are independent, and be respectively equipped with first sensor 412, second sensor 422 and the 3rd sensor 432 in the first output gas circuit 41, second output gas circuit 42 and the 3rd output gas circuit 43; Described first sensor 412, second sensor 422 and the 3rd sensor 432 are responsible for detecting the air pressure signal in output gas circuit corresponding with it respectively, and feed back to computing machine 8 by detecting the air pressure signal obtained, computing machine 8 realizes the automatic control to each solenoid valve after process analysis, thus test is carried out automatically.Because pilot lamp 6 is connected in computing machine 8 system, when selecting certain loop works, the pilot lamp 6 corresponding with this loop can light.When testing defective, alarm 5 sounds, and test stops.When test abnormality, stop button 92 can be pressed, stop test.
Export the output of gas circuit 41 for first, the test of the utility model brake test machine to bogie pipeline has two kinds, is divided into tightness test and action test.When carrying out tightness test, first set air pressure desired value at computing machine 8, during control program running, computing machine 8 makes the delivery outlet 41A of the first output gas circuit 41 toward the inflation of bogie pipeline by controlling each solenoid valve, and after air pressure arrives certain value, computing machine 8 controls each solenoid valve again and carries out supercharging, after supercharging air pressure reaches desired value, computing machine 8 controls each solenoid valve makes air pressure keep constant, and after off-test, computing machine 8 controls each solenoid valve again makes pipeline be vented.When carrying out action test, first set air pressure desired value at computing machine 8, the opening and closing that operator directly controls each solenoid valve by control program makes air pressure reach desired value, after arriving desired value, by control program, each solenoid valve is controlled again, air feed is made to stop and carrying out action test to bogie, operator's manual control procedures exhaust after off-test.
Described three braking gas circuits 3 are independently, and described three output gas circuits are separate, and three air feed loops of formation are also independently, and three air feed loops can work independently, and also can work simultaneously.Duty is as shown in table 1 below:
Table 1 solenoid action schedule
Wherein, "+" number in table represents solenoid energising work, and "-" represents that solenoid power-off does not work.
Therefore, by said structure, the utility model novel steering frame brake test machine is applicable to various motor train unit, city rail vehicle, railcar.Because actual passenger car bogie is up to 3 brake pipings (front and back wheel is to each, tread cleaner one).Can select in three output gas circuits from the utility model according to the actual requirements, when three groups of air feed loops, namely three output gas circuits output to after in pipeline corresponding on bogie, brake test machine just automatically can realize the performance test such as air pipe line impermeability, braking maneuver, fast row, slow row to bogie brake system, without the need to manual intervention, the utility model brake test facility have data acquisition, automatically control, automatic printing in one.
Relative to prior art, the utility model novel steering frame brake test machine reduces the pipeline air-tightness difficulty of test of bogie, and improves test accuracy and test efficiency, and its bogie being convenient to nearly 3 pipe systems is tested.
The utility model is not limited to above-mentioned embodiment, if do not depart from spirit and scope of the present utility model to various change of the present utility model or distortion, if these are changed and distortion belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and distortion.
Claims (9)
1. a novel steering frame brake test machine, comprises testing machine casing, and is arranged in testing machine casing the air inlet pipeline, the braking gas circuit and always export gas circuit that are communicated with successively and connect; It is characterized in that: also comprise controller, and total gas circuit that exports comprises three separate output gas circuits; Each bar exports in gas circuit and is all provided with one for detecting the sensor of its air pressure inside; The sensor electrical that described controller exports in gas circuit with braking gas circuit and each bar is respectively connected.
2. novel steering frame brake test machine according to claim 1, it is characterized in that: described controller exports the air pressure signal adjustment braking gas circuit of the sensor in gas circuit and the duty of each bar output gas circuit, to realize controlling the process of brake test and testing according to each bar.
3. novel steering frame brake test machine according to claim 2, is characterized in that: also comprise display; Described display is electrically connected with controller, and the air pressure signal that the sensor in each bar output gas circuit records is converted into atmospheric pressure value by described controller, and is sent to display, is shown by display.
4. novel steering frame brake test machine according to claim 1, is characterized in that: described air inlet pipeline comprises hydraulic quick coupler, a stop valve and a filtrator for being communicated with external air source; Described hydraulic quick coupler, stop valve and filtrator are communicated with successively by pipeline and connect.
5. novel steering frame brake test machine according to claim 4, is characterized in that: described braking gas circuit comprises the first braking gas circuit, the second braking gas circuit, the 3rd braking gas circuit and electromagnetic valve component; Described first braking gas circuit comprises the first reduction valve, and described second braking gas circuit comprises the second reduction valve, and described 3rd braking gas circuit comprises supercharge pump assembly, and described electromagnetic valve component comprises the first two position three-way valve, the second two position three-way valve and a three position five-way valve; The import of described first reduction valve, the second reduction valve and supercharge pump assembly respectively with the outlet of filtrator; And the first reduction valve is communicated with exhausr port with the air intake opening of the first two position three-way valve respectively with the outlet of the second reduction valve, the gas outlet of the first two position three-way valve is communicated with exhausr port with the air intake opening of the second two position three-way valve respectively with the gas outlet of supercharge pump assembly; And described first two position three-way valve, the second two position three-way valve and three position five-way valve are electrically connected with described controller respectively, the air pressure signal recorded according to the sensor in each bar output gas circuit by controller adjusts its duty.
6. novel steering frame brake test machine according to claim 5, is characterized in that: described electromagnetic valve component also comprises an exhaust shutter; Described exhaust shutter is communicated with the exhausr port of described three position five-way valve and connects.
7. novel steering frame brake test machine according to claim 6, is characterized in that: described three output gas circuits are respectively the first output gas circuit, and second exports gas circuit and the 3rd exports gas circuit; Described first exports gas circuit comprises the first two position two-way valve and is arranged on the first sensor in the first two position two-way valve exit; Described second exports gas circuit comprises the second two position two-way valve and is arranged on second sensor in the second two position two-way valve exit; Described 3rd exports gas circuit comprises the 3rd two position two-way valve and is arranged on the 3rd sensor in the 3rd two position two-way valve exit; Described first two position two-way valve, the second two position two-way valve and the 3rd two position two-way valve entrance be communicated with the gas outlet of described three position five-way valve respectively, and be electrically connected with controller respectively, and control its duty respectively by the air pressure signal of controller respectively measured by first sensor, the second sensor and the 3rd sensor.
8. novel steering frame brake test machine according to claim 1, is characterized in that: also comprise printer; Described printer setup in testing machine casing, and is electrically connected with controller.
9. novel steering frame brake test machine according to claim 7, is characterized in that: also comprise for pointing out test findings underproof alarm; Described alarm is electrically connected with controller, and the test findings obtained by the information of voltage process of controller respectively measured by first sensor, the second sensor and the 3rd sensor controls its duty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427035.9U CN204085909U (en) | 2014-07-30 | 2014-07-30 | A kind of novel steering frame brake test machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427035.9U CN204085909U (en) | 2014-07-30 | 2014-07-30 | A kind of novel steering frame brake test machine |
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| CN204085909U true CN204085909U (en) | 2015-01-07 |
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| CN201420427035.9U Active CN204085909U (en) | 2014-07-30 | 2014-07-30 | A kind of novel steering frame brake test machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476815A (en) * | 2016-11-28 | 2017-03-08 | 中车长春轨道客车股份有限公司 | A kind of EMUs tread sweeping control system |
| CN111638021A (en) * | 2020-07-09 | 2020-09-08 | 中车洛阳机车有限公司 | Electric pneumatic valve detection test bed |
| CN112729719A (en) * | 2020-12-17 | 2021-04-30 | 中车长春轨道客车股份有限公司 | Railway passenger car pipeline pressure testing device |
| CN113649365A (en) * | 2021-07-31 | 2021-11-16 | 南京中车浦镇城轨车辆有限责任公司 | Cleaning device and cleaning system suitable for whole vehicle braking system of railway vehicle |
-
2014
- 2014-07-30 CN CN201420427035.9U patent/CN204085909U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476815A (en) * | 2016-11-28 | 2017-03-08 | 中车长春轨道客车股份有限公司 | A kind of EMUs tread sweeping control system |
| CN111638021A (en) * | 2020-07-09 | 2020-09-08 | 中车洛阳机车有限公司 | Electric pneumatic valve detection test bed |
| CN112729719A (en) * | 2020-12-17 | 2021-04-30 | 中车长春轨道客车股份有限公司 | Railway passenger car pipeline pressure testing device |
| CN113649365A (en) * | 2021-07-31 | 2021-11-16 | 南京中车浦镇城轨车辆有限责任公司 | Cleaning device and cleaning system suitable for whole vehicle braking system of railway vehicle |
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Address after: 529100, CSR Road, Xinhui District, Xinhui District, Guangdong, Jiangmen 6 Patentee after: Guangdong Zhongche railway vehicles Co. Ltd. Address before: 529100, CSR Road, Xinhui District, Xinhui District, Guangdong, Jiangmen 6 Patentee before: GUANGDONG CSR RAIL TRAFFIC VEHICLE CO., LTD. |