Bicycle tester with auxiliary air cylinder quick charging function and testing method thereof

Abstract

The invention belongs to the technical field of bicycle testers, and particularly relates to a bicycle tester with an auxiliary air cylinder quick charging function and a testing method thereof. According to the technical scheme, the single-vehicle tester with the auxiliary air cylinder quick charging function comprises a main air pipe, the tail end of the main air pipe is connected with a brake pipe, the other end of the brake pipe is connected with a tested vehicle or a functional air cylinder, the tested vehicle is connected with an auxiliary air cylinder and a brake cylinder, the auxiliary air cylinder is connected with an auxiliary air cylinder sensor, the main air pipe is connected with an auxiliary air pipe, and the auxiliary air pipe is connected with the functional air cylinder. The other end of the auxiliary air pipe is connected with the auxiliary air cylinder; the main air pipe is connected with a main air ball valve and a brake inflation valve group, the brake inflation valve group is connected with a brake pipe, and the brake pipe is connected with a brake exhaust valve group; the auxiliary air pipe is connected with an auxiliary air cylinder inflation electromagnetic valve, and the auxiliary air pipe is further connected with an auxiliary air cylinder exhaust electromagnetic valve through a pipeline. The invention provides a bicycle tester with an auxiliary air cylinder quick charging function and a testing method thereof.

Description

Technical Field

[0001] The present invention belongs to the technical field of bicycle testers, and particularly relates to a bicycle tester with a quick charging function for auxiliary air cylinders and a test method thereof. Background Art

[0002] At present, when newly manufactured, under emergency repair, depot repair, and factory repair of railway freight cars, a bicycle tester is used to conduct single-vehicle performance tests on vehicle braking systems in accordance with the "Trial Method for Single-Vehicle Tests of Railway Freight Cars with a Rated Pressure of 600 kPa". The test items include nine major items: ball passing test, leakage test, braking and release sensitivity test, 120 / 120-1 type brake accelerator release valve test, 120 / 120-1 type brake semi-automatic release valve main valve release test, emergency braking test, 120 / 120-1 type brake semi-automatic release valve brake cylinder release test, common braking stability and empty / heavy vehicle automatic adjustment device empty vehicle position test, empty / heavy vehicle automatic adjustment device semi-heavy vehicle and heavy vehicle position performance test, and brake adjuster performance test. The performance of the vehicle braking system is comprehensively detected, and the vehicle can be delivered for use only after passing the test.

[0003] As Figure 4 shown, existing bicycle testers usually use microcomputer control and can automatically conduct performance tests on vehicles according to the test method. The main components include: pressure reducing valve, solenoid valve, hose connector, brake pipe sensor, brake cylinder sensor, function air cylinder and other components. The solenoid valves are all used to inflate or exhaust the brake pipe, control the pressure change of the brake pipe, and use the pressure values collected by the brake pipe sensor and brake cylinder sensor to realize the performance detection of the vehicle braking system.

[0004] During single-vehicle tests, the solenoid valve needs to inflate the brake pipe to the rated pressure and stabilize it before the performance test can be carried out. When inflating, the brake pipe is connected to the air circuits of the auxiliary air cylinder and the acceleration and release air cylinder in the braking system. The volume of the auxiliary air cylinder (determined according to the system configuration) is usually 40 L, 50 L or 60 L, and the acceleration and release air cylinder is 11 L. Only when both air cylinders are inflated to the rated pressure can the pressure of the brake pipe be stabilized, meeting the prerequisite conditions for the test. In the structure of the braking control valve, the brake pipe inflates the auxiliary air cylinder through an orifice, and the auxiliary air cylinder then inflates the acceleration and release air cylinder through an orifice. The orifice diameter of the auxiliary air cylinder is first 2 mm and becomes 1.9 mm during decelerated inflation, and the orifice diameter of the acceleration and release air cylinder is 0.9 mm. Therefore, although the orifice diameter of the No. 1 quick charge solenoid valve is 6.4 mm, limited by the orifice, the inflation time of the auxiliary air cylinder and the acceleration and release air cylinder is very long, especially the inflation time of the auxiliary air cylinder, which severely restricts the efficiency of single-vehicle tests and results in a low vehicle delivery efficiency. Summary of the Invention

[0005] In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide a bicycle tester with a quick charging function for auxiliary air cylinders and a test method thereof.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A single car tester with a function of rapid charging for the auxiliary air cylinder, comprising a main air pipe, the end of the main air pipe is connected with a brake pipe, the other end of the brake pipe is connected with a vehicle under test or a function air cylinder, the vehicle under test is connected with an auxiliary air cylinder and a brake cylinder, an auxiliary air cylinder sensor is connected to the auxiliary air cylinder, a auxiliary air pipe is connected to the main air pipe, and the other end of the auxiliary air pipe is connected with the auxiliary air cylinder;

[0008] A main air valve and a brake charging valve group are connected to the main air pipe, the brake charging valve group is connected with the brake pipe, and a brake exhaust valve group is connected to the brake pipe; an auxiliary air cylinder charging solenoid valve is connected to the auxiliary air pipe, and an auxiliary air cylinder exhaust solenoid valve is also connected to the auxiliary air pipe through a pipeline.

[0009] By adding an air charging solenoid valve, an exhaust solenoid valve, an auxiliary air cylinder pressure sensor and corresponding pipelines to the auxiliary air cylinder in the present invention. When the brake charging valve group is opened for charging during the single car test, the brake cylinder starts to relieve, and the valve connecting the brake cylinder to the atmosphere opens. At this time, by means of strategy control, the auxiliary air cylinder charging solenoid valve is opened, adding an additional path for charging the auxiliary air cylinder, greatly improving the charging efficiency of the auxiliary air cylinder and the buffer air cylinder, shortening the single car test time, and improving the vehicle delivery efficiency. The auxiliary air cylinder sensor is used to detect the pressure value of the auxiliary air cylinder, facilitating the control of the test program, and the auxiliary air cylinder exhaust solenoid valve can quickly empty the compressed air in the auxiliary air cylinder, facilitating the disassembly of the air pipe.

[0010] The present invention is provided with an auxiliary air cylinder charging solenoid valve, realizing the rapid charging function of the auxiliary air cylinder, shortening the single car test time, and improving the overall vehicle delivery efficiency; an auxiliary air cylinder sensor is provided, which can detect the pressure change of the auxiliary air cylinder at any time, facilitating program control, and detecting the performance of the vehicle brake more accurately, meeting the requirements of the test method; an auxiliary air cylinder exhaust solenoid valve is provided, enabling the pressure of the auxiliary air cylinder to be quickly discharged to the atmosphere, facilitating the disassembly of the air pipe.

[0011] This single car tester can conduct a single car performance test on the vehicle brake according to the "Trial Method for Single Car Test of Railway Freight Cars with a Constant Pressure of 600 kPa". By adding an auxiliary air cylinder charging solenoid valve, an exhaust solenoid valve and an auxiliary air cylinder sensor, the charging efficiency of the auxiliary air cylinder and the buffer air cylinder is greatly improved, the single car test time is shortened, and the vehicle delivery efficiency is improved.

[0012] As a preferred solution of the present invention, the inlet of the auxiliary air pipe is connected to the outlet of the brake charging valve group.

[0013] As a preferred solution of the present invention, the inlet of the auxiliary air pipe is connected to the inlet of the brake charging valve group.

[0014] As a preferred embodiment of the present invention, a precision reducing valve for main air is further connected to the main air pipe. The precision reducing valve for main air is located between the main air ball valve and the brake charging valve group. The inlet of the auxiliary air pipe is connected to the inlet of the precision reducing valve for main air, and a precision reducing valve for auxiliary air is connected to a section of the auxiliary air pipe close to the main air pipe.

[0015] As a preferred embodiment of the present invention, the brake charging valve group includes a first charging solenoid valve and a second charging solenoid valve arranged in parallel.

[0016] As a preferred embodiment of the present invention, the brake exhaust valve group includes a sensitivity solenoid valve, a stability solenoid valve, an emergency solenoid valve, a 120 stability solenoid valve, and a 120 emergency solenoid valve connected in sequence to the brake pipe.

[0017] As a preferred embodiment of the present invention, a throttle valve is connected to each of the sensitivity solenoid valve, the stability solenoid valve, the emergency solenoid valve, the 120 stability solenoid valve, and the 120 emergency solenoid valve.

[0018] As a preferred embodiment of the present invention, a hose connector is further connected to the brake pipe, and the hose connector is connected to the vehicle to be tested or the function air cylinder.

[0019] As a preferred embodiment of the present invention, a brake pipe sensor is further connected to the brake pipe, and a brake cylinder sensor is connected to the brake cylinder.

[0020] A test method for a single vehicle tester with a fast charging function for the auxiliary air cylinder includes the following steps:

[0021] S1: Control the main air ball valve, the brake charging valve group, and the brake exhaust valve group to be energized or de-energized, so that the pressure of the brake pipe changes, control the vehicle brake to be in the braking, releasing, and holding states, collect relevant data using sensors, and complete the single vehicle performance detection;

[0022] S2: After the first charging solenoid valve is charged, the auxiliary air cylinder charging solenoid valve is energized or de-energized according to the control strategy to realize the fast charging function of the auxiliary air cylinder, and the auxiliary air cylinder sensor detects the pressure value of the auxiliary air cylinder;

[0023] S3: The auxiliary air cylinder exhaust solenoid valve quickly discharges the compressed air in the auxiliary air cylinder.

[0024] The beneficial effects of the present invention are:

[0025] This single vehicle tester can perform single vehicle performance tests on vehicle brakes in accordance with the "Trial Method for Single Vehicle Tests of Railway Freight Cars with a Constant Pressure of 600 kPa". By adding an auxiliary air cylinder charging solenoid valve, an exhaust solenoid valve, and an auxiliary air cylinder sensor, the charging efficiency of the auxiliary air cylinder and the additional buffer air cylinder is greatly improved, the single vehicle test time is shortened, and the vehicle delivery efficiency is improved. Description of the Drawings

[0026] Figure 1 It is the schematic diagram of the single car tester in Embodiment 1;

[0027] Figure 2 It is the schematic diagram of the single car tester in Embodiment 2;

[0028] Figure 3 It is the schematic diagram of the single car tester in Embodiment 3;

[0029] Figure 4 It is the schematic diagram of the existing single car tester.

[0030] In the figure: 1 - main air duct; 2 - brake pipe; 3 - vehicle under test; 4 - auxiliary air duct; 11 - main air ball valve; 12 - brake charging valve group; 13 - main air precision pressure reducing valve; 14 - pressure gauge; 15 - filter and union; 21 - brake exhaust valve group; 22 - hose connector; 23 - brake pipe sensor; 31 - auxiliary air cylinder; 32 - brake cylinder; 41 - auxiliary air cylinder charging solenoid valve; 42 - auxiliary air cylinder exhaust solenoid valve; 43 - auxiliary air precision pressure reducing valve; 121 - first charging solenoid valve; 122 - second charging solenoid valve; 211 - sensitivity solenoid valve; 212 - stability solenoid valve; 213 - emergency solenoid valve; 214 - 120 stability solenoid valve; 215 - 120 emergency solenoid valve; 311 - auxiliary air cylinder sensor; 321 - brake cylinder sensor. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0033] Embodiment 1:

[0034] As Figure 1As shown in the figure, the single vehicle tester with the function of fast charging of auxiliary air cylinders in this embodiment includes a main air pipe 1. The end of the main air pipe 1 is connected to a brake pipe 2, and the other end of the brake pipe 2 is connected to a vehicle under test 3 or a function air cylinder. The vehicle under test 3 is connected with an auxiliary air cylinder 31 and a brake cylinder 32. An auxiliary air cylinder sensor 311 is connected to the auxiliary air cylinder 31. A sub-air pipe 4 is connected to the main air pipe 1, and the other end of the sub-air pipe 4 is connected to the auxiliary air cylinder 31; a brake pipe sensor 23 is also connected to the brake pipe 2, and a brake cylinder sensor 321 is connected to the brake cylinder 32.

[0035] A main air valve 11, a filter combination 15, a main air precision pressure reducing valve 13, and a brake charging valve group 12 are sequentially connected to the main air pipe 1, and the brake charging valve group 12 is connected to the brake pipe 2. The brake charging valve group 12 includes a first charging solenoid valve 121 and a second charging solenoid valve 122 arranged in parallel, and a throttle valve is connected to the outlet of the second charging solenoid valve 122. Pressure gauges 14 are connected to the outlet of the brake charging valve group 12 and the outlet of the filter combination 15.

[0036] A brake exhaust valve group 21 and a hose connector 22 are sequentially connected to the brake pipe 2, and the hose connector 22 is connected to the vehicle under test 3 or the function air cylinder; a sub-air cylinder charging solenoid valve 41 is connected to the sub-air pipe 4, a throttle valve is connected to the outlet of the sub-air cylinder charging solenoid valve 41, and a sub-air cylinder exhaust solenoid valve 42 is also connected to the sub-air pipe 4 through a pipeline, and the outlet of the sub-air cylinder exhaust solenoid valve 42 communicates with the atmosphere.

[0037] In this embodiment, the inlet of the sub-air pipe 4 is connected to the outlet of the brake charging valve group 12.

[0038] The main air valve 11 is used to control the on-off of the air source air circuit. The filter combination 15 filters the compressed air provided by the air source. The main air precision pressure reducing valve 13 is used to control the test fixed pressure, usually 600 kPa. The brake charging valve group 12 controls the air charging of the brake pipe 2.

[0039] The brake exhaust valve group 21 includes a sensitivity solenoid valve 211, a stability solenoid valve 212, an emergency solenoid valve 213, a 120 stability solenoid valve 214, and a 120 emergency solenoid valve 215 that are sequentially connected to the brake pipe 2. Throttle valves are connected to the sensitivity solenoid valve 211, the stability solenoid valve 212, the emergency solenoid valve 213, the 120 stability solenoid valve 214, and the 120 emergency solenoid valve 215, and the outlets of the throttle valves communicate with the atmosphere. The sensitivity solenoid valve 211, the stability solenoid valve 212, and the emergency solenoid valve 213 control the air exhaust of the brake pipe 2. When the 120 stability solenoid valve 214 and the 120 emergency solenoid valve 215 perform the stability test and the emergency braking test of the 120-type brake, they control the air exhaust of the brake pipe 2.

[0040] The auxiliary reservoir charging solenoid valve 41 controls the rapid charging of the auxiliary reservoir 31. The auxiliary reservoir exhaust solenoid valve 42 controls the rapid exhaust of the auxiliary reservoir 31. The brake pipe sensor 23 detects the pressure value of the brake pipe 2. The brake cylinder sensor 321 detects the pressure value of the brake cylinder 32. The auxiliary reservoir sensor 311 detects the pressure value of the auxiliary reservoir 31. The throttle valve is used to adjust the charging and exhausting time of each solenoid valve to meet the standard requirements. The function cylinder is used for the function test of the single car tester; when testing the function cylinder, the function cylinder replaces the vehicle under test 3. At this time, the auxiliary air pipe 4 is in a disconnected state. The hose connector 22 is used to connect the single car tester to the function cylinder or the vehicle under test 3. The auxiliary air pipe 4 is used to connect the single car tester to the auxiliary reservoir 31 of the vehicle brake.

[0041] The present invention adds a charging solenoid valve, an exhaust solenoid valve, an auxiliary reservoir pressure sensor 311 and corresponding pipelines to the auxiliary reservoir 31. When the brake charging valve group 12 is opened for charging during the single car test, the brake cylinder 32 starts to release, and the valve connecting the brake cylinder 32 to the atmosphere closes. At this time, by means of strategy control, the auxiliary reservoir charging solenoid valve 41 is opened, adding an extra path for charging the auxiliary reservoir 31, greatly improving the charging efficiency of the auxiliary reservoir 31 and the buffer cylinder, shortening the single car test time, and improving the vehicle delivery efficiency. The auxiliary reservoir sensor 311 is used to detect the pressure value of the auxiliary reservoir 31, facilitating the control of the test procedure. The auxiliary reservoir exhaust solenoid valve 42 can quickly empty the compressed air in the auxiliary reservoir 31, facilitating the disassembly of the air pipe.

[0042] The present invention is provided with an auxiliary reservoir charging solenoid valve 41, realizing the rapid charging function of the auxiliary reservoir 31, shortening the single car test time, and improving the overall vehicle delivery efficiency; it is provided with an auxiliary reservoir sensor 311, which can detect the pressure change of the auxiliary reservoir 31 at any time, facilitating program control, and making the detection of the performance of the vehicle brake more accurate, meeting the requirements of the test method; it is provided with an auxiliary reservoir exhaust solenoid valve 42, enabling the pressure of the auxiliary reservoir 31 to be quickly discharged to the atmosphere, facilitating the disassembly of the air pipe.

[0043] This single car tester can conduct a single car performance test on the vehicle brake in accordance with the "Trial Method for Single Car Test of Railway Freight Cars with a Rated Pressure of 600 kPa". By adding an auxiliary reservoir charging solenoid valve 41, an exhaust solenoid valve and an auxiliary reservoir sensor 311, the charging efficiency of the auxiliary reservoir 31 and the buffer cylinder is greatly improved, the single car test time is shortened, and the vehicle delivery efficiency is improved.

[0044] Example 2:

[0045] As Figure 2 shown, different from Example 1, the inlet of the auxiliary air pipe 4 in this example is connected to the inlet of the brake charging valve group 12. The rest of the structure and connection relationship are the same as those in Example 1.

[0046] Example 3:

[0047] As Figure 3 shown, different from Embodiment 1, the inlet of the auxiliary air duct 4 in this embodiment is connected to the inlet of the main air precision pressure reducing valve 13, and an auxiliary air precision pressure reducing valve 43 is connected to a section of the auxiliary air duct 4 close to the main air duct 1. The rest of the structure and connection relationship are the same as those in Embodiment 1.

[0048] Embodiment 4:

[0049] The test method of the single vehicle tester with the fast charging function of the auxiliary air cylinder in this embodiment includes the following steps:

[0050] S1: According to the single vehicle test method, the single vehicle tester uses a microcomputer to control the main air ball valve 11, the brake charging valve group 12, and the brake exhaust valve group 21 to be powered on or powered off, so that the pressure of the brake pipe 2 changes, controls the vehicle brake to be in different states such as braking, releasing, and holding pressure, and uses sensors to collect relevant data to complete the single vehicle performance detection;

[0051] S2: After the first charging solenoid valve 121 is charged, the auxiliary air cylinder charging solenoid valve 41 is powered on or powered off according to the control strategy to realize the fast charging function of the auxiliary air cylinder 31 and achieve the fast charging function of the auxiliary air cylinder 31; the auxiliary air cylinder sensor 311 detects the pressure value of the auxiliary air cylinder 31 to facilitate the control of the test procedure;

[0052] S3: The auxiliary air cylinder exhaust solenoid valve 42 quickly discharges the compressed air in the auxiliary air cylinder 31 to facilitate the disassembly of the air duct.

[0053] The present invention is not limited to the above optional embodiments. Anyone can obtain other various forms of products under the inspiration of the present invention. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present invention, they all fall within the protection scope of the present invention.

Claims

1. A single vehicle tester with a quick charging function for auxiliary air cylinders, characterized in that: It includes a main air pipe (1), a brake pipe (2) is connected to the end of the main air pipe (1), the other end of the brake pipe (2) is connected to the vehicle under test (3) or a functional air cylinder, the vehicle under test (3) is connected with a secondary air cylinder (31) and a brake cylinder (32), a secondary air cylinder sensor (311) is connected to the secondary air cylinder (31), a secondary air pipe (4) is connected to the main air pipe (1), and the other end of the secondary air pipe (4) is connected to the secondary air cylinder (31). A main air valve (11) and a brake charging valve group (12) are connected to the main air pipe (1), the brake charging valve group (12) is connected to the brake pipe (2), and a brake exhaust valve group (21) is connected to the brake pipe (2); a secondary air cylinder charging solenoid valve (41) is connected to the secondary air pipe (4), and a secondary air cylinder exhaust solenoid valve (42) is also connected to the secondary air pipe (4) through a pipeline.

2. The single vehicle tester with the function of fast charging of auxiliary air cylinders according to claim 1, characterized in that: The inlet of the secondary air pipe (4) is connected to the outlet of the brake charging valve group (12).

3. The single bicycle tester with the function of fast charging of auxiliary air cylinders according to claim 1, characterized in that: The inlet of the secondary air pipe (4) is connected to the inlet of the brake charging valve group (12).

4. A single bicycle tester with a secondary air reservoir fast charging function according to claim 1, characterized in that: A main air precision pressure reducing valve (13) is also connected to the main air pipe (1), the main air precision pressure reducing valve (13) is located between the main air valve (11) and the brake charging valve group (12), the inlet of the secondary air pipe (4) is connected to the inlet of the main air precision pressure reducing valve (13), and a secondary air precision pressure reducing valve (43) is connected to a section of the secondary air pipe (4) close to the main air pipe (1).

5. The single vehicle tester with the function of fast charging of auxiliary air cylinders according to claim 1, characterized in that: The brake charging valve group (12) includes a first charging solenoid valve (121) and a second charging solenoid valve (122) arranged in parallel.

6. The bicycle tester with a quick charging function for the auxiliary air cylinder according to claim 1, characterized in that: The brake exhaust valve group (21) includes a sensitivity solenoid valve (211), a stability solenoid valve (212), an emergency solenoid valve (213), a 120 stability solenoid valve (214), and a 120 emergency solenoid valve (215) connected to the brake pipe (2) in sequence.

7. The single-bicycle tester with the function of rapid charging of an auxiliary air reservoir according to claim 6, characterized in that: Throttle valves are connected to the sensitivity solenoid valve (211), the stability solenoid valve (212), the emergency solenoid valve (213), the 120 stability solenoid valve (214), and the 120 emergency solenoid valve (215).

8. A single bicycle tester with a secondary air reservoir fast charging function according to claim 1, characterized in that: A hose connector (22) is also connected to the brake pipe (2), and the hose connector (22) is connected to the vehicle under test (3) or a functional air cylinder.

9. A single bicycle tester with a secondary air reservoir fast charging function according to claim 1, characterized in that: A brake pipe sensor (23) is also connected to the brake pipe (2), and a brake cylinder sensor (321) is connected to the brake cylinder (32).

10. A test method for a single vehicle tester with a quick charging function for the auxiliary air cylinder, using the single vehicle tester with a quick charging function for the auxiliary air cylinder according to claim 5, characterized in that: It includes the following steps: S1: Control the main air valve (11), the brake charging valve group (12), and the brake exhaust valve group (21) to be powered on or off, so that the pressure of the brake pipe (2) changes, control the vehicle brake to be in the brake, release, and holding states, collect relevant data using sensors, and complete the single vehicle performance test; S2: After the first charging solenoid valve (121) is charged, the secondary air cylinder charging solenoid valve (41) is powered on or off according to the control strategy to realize the fast charging function of the secondary air cylinder (31), and the secondary air cylinder sensor (311) detects the pressure value of the secondary air cylinder (31); S3: The secondary air cylinder exhaust solenoid valve (42) quickly evacuates the compressed air in the secondary air cylinder (31).

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