Railway engineering machinery vehicle attachment test device

Abstract

The utility model relates to the technical field of railway test devices, in particular to a railway engineering machinery vehicle attachment test device, which comprises a first vehicle body adapter and a second vehicle body adapter, one end of the first vehicle body adapter is externally connected with a movable air compressor, and compressed air provided by the movable air compressor is divided into two air paths; one air path is an air charging air source air path and is transmitted to a regulating valve from the other end of the first vehicle body adapter, the other end of the regulating valve is connected with a second vehicle body adapter through a pneumatic control valve, and the second vehicle body adapter is connected with the railway engineering machinery vehicle through a corrugated pipe; the other air path is a control air path and is transmitted to a control switch from the other end of the first vehicle body adapter, and the control switch is connected to the second vehicle body adapter through two pneumatic control valves. The utility model has the advantages that: the total air can be adjusted, the device is suitable for different brake system air pressures of different vehicle types, and the dynamic total air pressure is visualized; the self-valve action of the host is simulated to depressurize, pressurize and maintain the pressure of the train pipe, and the pressure of the dynamic train pipe is visualized.

Description

Technical Field

[0001] The utility model relates to the technical field of railway test devices, in particular to an attached test device for a railway track maintenance machine vehicle. Background Art

[0002] During the third and fourth overhauls of the track maintenance machine vehicle, the brake system adopts the comprehensive test of YZ-1 and JZ-7 brakes, and the tests are all in the main engine mode, and the attached operation auxiliary engine mode cannot be simulated. Its non-fire return device and the main and auxiliary engine air control valves cannot be tested in the main engine mode, resulting in missing items. During attached operation, except for the start of the prime mover engine, the auxiliary engine is in a state of unpowered attachment. In the auxiliary engine state, when the self-valve handle of the JZ-7 brake is taken out, the relay valve is self-locked; for the YZ-1 series brakes, the main and auxiliary engine switch is placed in the auxiliary engine position, and the train pipe connection between the relay valve and the distribution valve is cut off through the air control valve. Since the auxiliary engine does not start and the air compressor does not work, the auxiliary engine fills the brake cylinder with air through the main train pipe, the non-fire return device and its attached pipelines to ensure the air source required for the braking device.

[0003] During the third and fourth overhauls, the brake test in the single-engine main engine mode meets the departure conditions. In the test of the formation attached state, it is found that the leakage rate of the train pipe air pressure exceeds the standard and the air filling of the brake cylinder is slow, resulting in the vehicle not meeting the operation conditions. This failure is mainly caused by air leakage and blockage in the non-fire return device and its pipelines, bringing certain risks to the operation of the track maintenance machine vehicle. Summary of the Invention

[0004] The purpose of the utility model is to provide an attached test device for a railway track maintenance machine vehicle according to the deficiencies of the above-mentioned existing technologies. By simulating strong winds and operating a brake test device, it ensures the driving safety of the track maintenance machine vehicle in the auxiliary engine state and avoids brake system failures caused by failures of the non-fire return device and its attached pipelines.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] An attached test device for a railway track maintenance machine vehicle, characterized in that: it includes a first vehicle body adapter and a second vehicle body adapter, one end of the first vehicle body adapter is externally connected to a mobile air compressor, and the compressed air provided by the mobile air compressor is divided into two air paths;

[0007] One air path is a charging air source air path, which is transmitted from the other end of the first vehicle body adapter to a regulating valve, the other end of the regulating valve is connected to the second vehicle body adapter through an air control valve, and the second vehicle body adapter is connected to the railway track maintenance machine vehicle through a corrugated pipe;

[0008] The other air path is a control air path, which is transmitted from the other end of the first vehicle body adapter to a control switch, and the control switch is connected to the second vehicle body adapter through two air control valves.

[0009] A dust and water filter is provided between the first car body adapter and the regulating valve.

[0010] An emergency braking switch is provided in the control air circuit.

[0011] A main air pipe pressure gauge and a control valve are provided in the control air circuit.

[0012] A main air source pressure gauge is provided in the charging air source air circuit.

[0013] A dust-proof plug device is provided at the corrugated pipe.

[0014] The advantages of the present utility model are as follows:

[0015] 1) When charging the track maintenance machine car, dust and water are filtered from the main air, and the use effect is good;

[0016] 2) Adjustable main air, applicable to different vehicle models and different braking system air pressures, with visual dynamic main air pressure;

[0017] 3) Simulate the action of the self-valve of the main unit to reduce, increase, and maintain the pressure of the train pipe, with visual dynamic train pipe pressure;

[0018] 4) Simulate emergency braking to check the emergency braking situation;

[0019] 5) It has a small self-weight and uses a small cart mode, which is convenient for movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a composition diagram of the attached trolley system of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of the attached trolley of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The features of the present utility model and other related features will be further described in detail below with reference to the drawings through embodiments for the understanding of those skilled in the same industry:

[0023] As Figure 1-2 shown, the marks 1-14 in the figure respectively represent: the first car body adapter 1, the dust and water filter 2, the pressure regulating valve 3, the emergency braking switch 4, the control switch 5, the pneumatic control valve 6, the pneumatic control valve 7, the pneumatic control valve 8, the control valve 9, the main air source pressure gauge 10, the main air pipe pressure gauge 11, the second car body adapter 12, the corrugated pipe 13, and the dust-proof plug 14.

[0024] Embodiment: As Figure 1 and Figure 2As shown in the figure, in this embodiment, the attached test device for railway maintenance machinery vehicles mainly includes two parts. One is a mobile air compressor for providing main air, and the other is an attached trolley for performing air charging, pressure maintaining, and braking tests on railway maintenance machinery vehicles.

[0025] Specifically, the attached trolley in this embodiment includes a first vehicle body adapter 1, which can be externally connected to a mobile air compressor. The mobile air compressor provides an air source, and the compressed air is filtered by a dust and water filter 2 to improve the quality of the supplied air.

[0026] The compressed air filtered by the dust and water filter 2 is divided into two paths. One path adjusts the air pressure of the air source to the pressure required for the relevant test pipelines of the railway maintenance machinery vehicle through a pressure regulating valve 3, and the main air source air gauge 10 is led out through a three-way valve to display the air pressure of the air source, so as to provide an air charging air source. An air control valve 6 for controlling the air path is arranged on the air charging air source pipeline, and the air control valve 6 is connected to a second vehicle body adapter 12. The second vehicle body adapter 12 is connected to the railway maintenance machinery vehicle through a corrugated pipe 13. In order to further improve the air quality, a dust-proof plug 14 is arranged at the position of the corrugated pipe 13.

[0027] The other path is a control air path. The air control valves 7 and 8 of the main air path are controlled through a control switch 5 to complete the air charging of auxiliary machines and the switching to use the independent brake valve. Different reduction amounts of the train pipe are realized through different positions of the independent brake valve, and a pressure maintaining test can be carried out. The air control valve 8 is connected with a control valve 9 and a main air pipe air gauge 11. Through an emergency braking switch 4, the control valve 9 is controlled to exhaust air so as to realize emergency braking, and the main air pipe air gauge 11 is used to display the air pressure of the control air path.

[0028] Although the above embodiments have described in detail the concept and embodiments of the purpose of the present invention with reference to the drawings, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present invention without departing from the scope defined by the claims, so they will not be elaborated one by one here.

Claims

1. A test device attached to a railway track maintenance machine, characterized in that: It includes a first vehicle body adapter and a second vehicle body adapter. One end of the first vehicle body adapter is externally connected to a mobile air compressor, and the compressed air provided by the mobile air compressor is divided into two air paths; One air path is the charging air source air path, which is transmitted from the other end of the first vehicle body adapter to a regulating valve. The other end of the regulating valve is connected to the second vehicle body adapter through a pneumatic control valve, and the second vehicle body adapter is connected to a railway track maintenance machine through a corrugated pipe; The other air path is the control air path, which is transmitted from the other end of the first vehicle body adapter to a control switch, and the control switch is connected to the second vehicle body adapter through two pneumatic control valves.

2. The attached test device for railway track maintenance machinery vehicle according to claim 1, characterized in that: A dust and water filter is provided between the first vehicle body adapter and the regulating valve.

3. The attached test device for railway track maintenance machinery vehicle according to claim 1, wherein: An emergency braking switch is provided in the control air path.

4. The attached test device for railway track maintenance machinery vehicle according to claim 1, characterized in that: A main air pipe air gauge and a control valve are provided in the control air path.

5. The attached test device for railway track maintenance machinery vehicle according to claim 1, wherein: A main air source air gauge is provided in the charging air source air path.

6. The attached test device for railway track maintenance machinery vehicle according to claim 1, characterized in that: A dust-proof plug device is provided at the corrugated pipe.

Images