Brake control unit of rail engineering vehicle locomotive brake

Abstract

According to the brake control unit of the locomotive brake of the rail engineering vehicle, under the general trend of development of existing railway equipment, the existing locomotive brake of the rail engineering vehicle cannot meet the requirements of intelligentization and informatization of the rail engineering vehicle; and the functions of fault diagnosis, fault analysis, information recording, data communication, automatic driving control and the like of the rail engineering vehicle cannot be realized. Starting from the requirement of the rail engineering vehicle for the locomotive brake, the main target position meets various control functions of the rail engineering vehicle, and the rail engineering vehicle brake control system is easy to adapt to various rail engineering vehicles. And the functions of fault diagnosis, fault analysis, information recording, data communication, automatic driving control and the like of the rail engineering vehicle can be realized. And the combination of a mechanical valve and an air valve of the JZ-7 air brake is realized, and meanwhile, stable electric control and mechanical control can be provided.

Description

Technical Field

[0001] The invention relates to the technical field of brake control systems, in particular to a brake control unit of a rail engineering vehicle locomotive brake. Background Art

[0002] In the field of rail engineering vehicles, the mainly used JZ-7 air brakes and DK-1 electro-pneumatic brakes are not computer-controlled, so they cannot realize functions such as fault diagnosis, fault analysis, information recording, data communication, and automatic driving control.

[0003] In the field of locomotives operating on main lines: The micro-control motors used in them have complex functions, and many of them are not compatible or applicable to engineering vehicles. For example, their systems are equipped with a large number of 110V voltage components and equipment according to the characteristics of electric locomotives, while most of the equipment in rail engineering vehicles uses 24V voltage.

[0004] Most of these mainline locomotive micro-control motors are controlled by electronic control components such as solenoid valves and pressure sensors. The configured mechanical valves can only be used temporarily when the electronic control part fails, and their long-term performance and stability are poor.

[0005] The existing micro-control motor needs to be equipped with a backup brake module separately.

[0006] Its cost is several times or even dozens of times higher than the locomotive brakes currently used in rail engineering vehicles.

[0007] In view of the above problems, a brake control unit of a rail engineering vehicle locomotive brake is proposed. Summary of the invention

[0008] The object of the present invention is to overcome the above-mentioned existing deficiencies and provide a brake control unit for a railway engineering vehicle locomotive brake.

[0009] To achieve the above object, the present invention provides the following technical solutions: a brake control unit of a rail engineering vehicle locomotive brake, comprising a brake cabinet, wherein an electronic unit part and a physical unit part are arranged in the brake cabinet, wherein the electronic unit part comprises a separate brake module, a train pipe control module, a brake cylinder control module, a backup brake module and a total air control module; The train pipe control module and brake cylinder control module are both composed of the relay valve of the JZ-7 brake machine, the F-7 distribution valve, the air relay valve, the reconnection valve and the fireless return valve; The physical unit part includes EBCU, external connector of electric control box and external gas circuit interface board.

[0010] Preferably, the separate brake module is composed of a solenoid valve, a pressure reducing valve, a dust filter, an air cylinder and a pressure sensor; It is used to accurately control the pressure of the individual action pipe according to the control signal to achieve individual braking of the locomotive.

[0011] Preferably, the train pipe control module is composed of a pressure sensor, a solenoid valve, a plug gate, a JZ-7 relay valve, an air cylinder, a filter, a pressure reducing valve and a pressure measuring point; It is used to control the pressure of the balancing air cylinder accurately through the balancing air cylinder electro-pneumatic module according to the control signal. The balancing air cylinder pressure is used as the pre-control pressure of the train pipe to control the pressure of the train pipe through the JZ-7 relay valve and realize other train pipe control related functions.

[0012] Preferably, the cylinder control module is composed of a pressure sensor, a solenoid valve, a plug gate, an F-7 distribution valve, a JZ-7 air relay valve, a JZ-7 reconnection valve, a fire-free return valve, an air cylinder, a filter, a pressure reducing valve, a pressure measuring point and a two-way valve; It is used to control the pressure of the locomotive brake cylinder through the electronic distribution valve or F-7 distribution valve according to the pressure changes of the train pipe and realize other brake cylinder control related functions.

[0013] Preferably, the backup brake module is composed of a manual switching valve and a pressure reducing valve; It is used to adjust the backup brake constant pressure, switch the backup brake control end, and provide feedback of the action signal.

[0014] Preferably, the total air control module is composed of a filter, a manual plug door and a pressure sensor; It is used to control the on and off of the total air source through a manual plug door and feedback the action signal, monitor the total air pressure through a pressure sensor, and filter impurities in the air source through a filter.

[0015] Preferably, there are a total of 10 external air circuit interfaces arranged on the external air circuit interface plate, namely, total air, train pipe, brake cylinder, sand spreading pipe, averaging pipe, total air signal pipe, backup brake valve air source interface I, backup brake valve air source interface II, backup brake valve balancing air cylinder interface I, and backup brake valve balancing air cylinder interface II.

[0016] Preferably, a functional air cylinder and connecting pipelines are laid on the back side of the brake cabinet.

[0017] Rail engineering vehicles mainly refer to engineering rail vehicles used for railway line inspection, maintenance and repair. They are key equipment for all-round three-dimensional maintenance of railway lines, contact networks, tunnels, bridges, roadbeds and ballasts, and cooperate with EMUs, passenger cars, freight cars and locomotives to provide users with full life cycle solutions from operation to line maintenance. Brakes are an important part of rail transportation equipment including rail engineering vehicles. They are mainly used to control the braking and release of rail locomotives and related control functions of the braking system. In order to achieve the requirements of safe operation and rapid parking of locomotives or trains, brakes must be designed, installed and used.

[0018] The brake control unit of the present invention is the core actuator of the locomotive brake, and its main function is to receive electrical signals from the locomotive and the brake electronic brake control unit (hereinafter referred to as EBCU) to implement the control of the locomotive braking and release.

[0019] At present, the main brakes used in rail engineering vehicles include JZ-7 air brakes and DK-I electro-pneumatic brakes. Among them, JZ-7 air brakes are pure air brakes, which use pure air valves to control the braking and release of the locomotive, and have no electronic control or microcomputer control related functions. DK-I electro-pneumatic brakes are circuit-controlled brakes, which use air valves and pure circuit control, and have no microcomputer control related functions.

[0020] At present, most of the electric locomotives and diesel locomotives running on the main line are equipped with micro-controlled locomotive brakes, including CAB series, JZ-8, DK-2 and other models.

[0021] Compared with the prior art, the present invention has the following beneficial effects: In order to adapt to the current situation that most rail engineering vehicles have only 24V power supply without contact network, all electrical components such as solenoid valves and EBCU in the system use 24V power supply.

[0022] The sand spreading control solenoid valve is integrated into the train pipe control module, eliminating the need to set up a separate sand spreading control module.

[0023] In view of the fact that some rail engineering vehicles require the operation room to directly control the through braking function, a through braking module consisting of a manual plug gate, a pressure reducing valve, a solenoid valve and a two-way valve is set up to achieve this function.

[0024] This brake control unit integrates the relay valve, F-7 distribution valve, air relay valve and reconnection valve of JZ-7 air brake. These valves have been used on various types of mainline locomotives and rail engineering vehicles for decades. They are mature, stable and low-cost. They can take on the main control function and provide stable backup support when the electronic control fails.

[0025] The backup brake function is integrated into the unit by utilizing components within the unit, and there is no need to set up a separate backup brake module, which has low cost and high reliability.

[0026] The system uses multiple JZ-7 air brake valves, which matches the JZ-7 air brakes used in most rail engineering vehicles, and has stronger applicability and matching. The system's operability and maintainability are revolutionary, which facilitates users to perform inspection, maintenance and daily maintenance operations on rail engineering vehicles that use this unit.

[0027] 7. The overall design of the system is concise and efficient, the components are reasonably selected, and the overall cost is much lower than similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the back structure of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-2 , the present invention provides a technical solution: a brake control unit of a rail engineering vehicle locomotive brake, comprising a brake cabinet 9, wherein an electronic unit part and a physical unit part are arranged in the brake cabinet, wherein the electronic unit part comprises a separate brake module 1, a train pipe control module 2, a brake cylinder control module 3, a backup brake module 4 and a total air control module 5; The train control module 2 and brake cylinder control module 3 are both composed of a relay valve of a JZ-7 brake machine, an F-7 distribution valve, an air relay valve, a reconnection valve and a fireless return valve; The physical unit part includes EBCU6, electric control box, external connector 7 and external gas circuit interface board 8.

[0031] Specifically, the separate brake module 1 is composed of components such as a solenoid valve, a pressure reducing valve, a dust filter, an air cylinder and a pressure sensor; It is used to accurately control the pressure of the individual action pipe according to the control signal to achieve individual braking of the locomotive.

[0032] Specifically, the train control module 2 is composed of a plurality of pressure sensors, a plurality of solenoid valves, a plurality of plug gates, a JZ-7 relay valve, an air cylinder, a filter, a pressure reducing valve and a pressure measuring point; It is used to control the pressure of the balancing air cylinder accurately through the balancing air cylinder electro-pneumatic module according to the control signal. The balancing air cylinder pressure is used as the pre-control pressure of the train pipe to control the pressure of the train pipe through the JZ-7 relay valve and realize other train pipe control related functions.

[0033] This module can control the blocking and connection of the total air source of the JZ-7 relay valve through the on-off of the solenoid valve and can feedback the action signal. The on-off of the control of the JZ-7 relay valve on the train pipe is controlled by the isolation solenoid valve or the manual isolation plug gate, and the action signal can be fed back. The emergency braking effect can be realized by the two emergency exhaust solenoid valves set up and the action signal can be fed back. The two emergency exhaust solenoid valves are redundant and can be directly controlled by the EBCU or the locomotive. The two emergency exhaust solenoid valves are manually cut off through the emergency exhaust solenoid valve isolation plug gate, and the action signal can be fed back. The sanding signal solenoid valve can output the sanding pressure signal and sanding pressure air. The flow meter is set up to monitor the air filling flow of the train pipe, and the faults such as broken hook, emergency braking, and relay valve abnormality can be judged. The switch between the locomotive electric pneumatic braking and the backup braking is realized through the backup brake switching plug gate, and the action signal can be fed back.

[0034] Specifically, the cylinder control module 3 is composed of multiple pressure sensors, multiple solenoid valves, multiple plug gates, F-7 distribution valves, JZ-7 air relay valves, JZ-7 reconnection valves, fire-free return valves, air cylinders, filters, pressure reducing valves, pressure measuring points and two-way valves, etc. It is used to control the pressure of the locomotive brake cylinder through the electronic distribution valve or F-7 distribution valve according to the pressure changes of the train pipe and realize other brake cylinder control related functions.

[0035] This module uses an electronic distribution valve machine and a JZ-7 air relay valve to control the brake cylinder pressure according to the pressure changes of the train pipe. When the electronic distribution valve fails, the distribution valve switching solenoid valve automatically switches to the F-7 distribution valve (mechanical distribution valve) and the JZ-7 air relay valve to continue to cooperate in controlling the brake cylinder pressure. The electronic distribution valve and the mechanical distribution valve are mutually redundant and serve as hot backups. The interlocking function of air brake and electric brake is realized through the air-electric interlocking solenoid valve. The separate relief function of the mechanical distribution valve is realized through the working air cylinder exhaust solenoid valve. The through-brake function of the engineering vehicle is realized through the through-brake module. The locomotive reconnection function is realized through the JZ-7 reconnection valve. The locomotive reconnection function is realized through the fireless return valve. The manual isolation of air brake is realized through the brake cylinder cut-off valve.

[0036] Specifically, the backup brake module 4 is composed of components such as a manual switching plug valve and a pressure reducing valve; It is used to adjust the backup brake constant pressure, switch the backup brake control end, and provide feedback of the action signal.

[0037] Specifically, the total air control module 4 is mainly composed of components such as a filter, a manual plug door and a pressure sensor; It is used to control the on and off of the total air source through a manual plug door and feedback the action signal, monitor the total air pressure through a pressure sensor, and filter impurities in the air source through a filter.

[0038] Specifically, there are 10 external air circuit interfaces set on the external air circuit interface plate 8, namely, total air, train pipe, brake cylinder, sand spreading pipe, averaging pipe, total air signal pipe, backup brake valve air source interface I, backup brake valve air source interface II, backup brake valve balancing air cylinder interface I, and backup brake valve balancing air cylinder interface II.

[0039] Specifically, a functional air cylinder and connecting pipelines are laid on the back of the brake cabinet 9.

[0040] Compared with the prior art, the present invention has the following beneficial effects: In order to adapt to the current situation that most rail engineering vehicles have only 24V power supply without contact network, all electrical components such as solenoid valves and EBCU in the system use 24V power supply.

[0041] The sand spreading control solenoid valve is integrated into the train pipe control module, eliminating the need to set up a separate sand spreading control module.

[0042] In view of the fact that some rail engineering vehicles require the operation room to directly control the through braking function, a through braking module consisting of a manual plug gate, a pressure reducing valve, a solenoid valve and a two-way valve is set up to achieve this function.

[0043] This brake control unit integrates the relay valve, F-7 distribution valve, air relay valve and reconnection valve of JZ-7 air brake. These valves have been used on various types of mainline locomotives and rail engineering vehicles for decades. They are mature, stable and low-cost. They can take on the main control function and provide stable backup support when the electronic control fails.

[0044] The backup brake function is integrated into the unit by utilizing components within the unit, and there is no need to set up a separate backup brake module, which has low cost and high reliability.

[0045] The system uses multiple JZ-7 air brake valves, which matches the JZ-7 air brakes used in most rail engineering vehicles, and has stronger applicability and matching. The system's operability and maintainability are revolutionary, which facilitates users to perform inspection, maintenance and daily maintenance operations on rail engineering vehicles that use this unit.

[0046] 7. The overall design of the system is concise and efficient, the components are reasonably selected, and the overall cost is much lower than similar products.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake control unit for a railway engineering vehicle locomotive brake, comprising a brake cabinet (9), characterized in that: An electronic unit part and a physical unit part are arranged in the brake cabinet, and the electronic unit part comprises a separate brake module (1), a train control module (2), a brake cylinder control module (3), a backup brake module (4) and a total air control module (5); The train pipe control module (2) and the brake cylinder control module (3) are both composed of a relay valve of a JZ-7 brake machine, an F-7 distribution valve, an air relay valve, a reconnection valve and a fireless return valve; The physical unit part comprises an EBCU (6), an electric control box external connector (7) and an external gas circuit interface board (8).

2. The brake control unit of a rail engineering vehicle locomotive brake according to claim 1, characterized in that: The separate brake module (1) is composed of a solenoid valve, a pressure reducing valve, a dust filter, an air cylinder and a pressure sensor; It is used to accurately control the pressure of the individual action pipe according to the control signal to achieve individual braking of the locomotive.

3. The brake control unit of a rail engineering vehicle locomotive brake according to claim 1, characterized in that: The train control module (2) is composed of a pressure sensor, a solenoid valve, a plug valve, a JZ-7 relay valve, an air cylinder, a filter, a pressure reducing valve and a pressure measuring point; It is used to control the pressure of the balancing air cylinder accurately through the balancing air cylinder electro-pneumatic module according to the control signal. The balancing air cylinder pressure is used as the pre-control pressure of the train pipe to control the pressure of the train pipe through the JZ-7 relay valve and realize other train pipe control related functions.

4. The brake control unit of a rail engineering vehicle locomotive brake according to claim 1, characterized in that: The cylinder control module (3) is composed of a pressure sensor, a solenoid valve, a plug valve, an F-7 distribution valve, a JZ-7 air relay valve, a JZ-7 reconnection valve, a fire return valve, an air cylinder, a filter, a pressure reducing valve, a pressure measuring point and a two-way valve; It is used to control the pressure of the locomotive brake cylinder through the electronic distribution valve or F-7 distribution valve according to the pressure changes of the train pipe and realize other brake cylinder control related functions.

5. The brake control unit of a rail engineering vehicle locomotive brake according to claim 1, characterized in that: The backup brake module (4) is composed of a manual switching valve and a pressure reducing valve; It is used to adjust the backup brake constant pressure, switch the backup brake control end, and provide feedback of the action signal.

6. The brake control unit of a rail engineering vehicle locomotive brake according to claim 1, characterized in that: The total air control module (4) is composed of a filter, a manual plug door and a pressure sensor; It is used to control the on and off of the total air source through a manual plug door and feedback the action signal, monitor the total air pressure through a pressure sensor, and filter impurities in the air source through a filter.

7. The brake control unit of a rail engineering vehicle locomotive brake according to claim 1, characterized in that: There are a total of 10 external air circuit interfaces arranged on the external air circuit interface plate (8), namely, total air, train pipe, brake cylinder, sand spreading pipe, averaging pipe, total air signal pipe, backup brake valve air source interface I, backup brake valve air source interface II, backup brake valve balancing air cylinder interface I, and backup brake valve balancing air cylinder interface II.

8. The brake control unit of a rail engineering vehicle locomotive brake according to claim 1, characterized in that: A functional air cylinder and connecting pipelines are provided on the back of the brake cabinet (9).

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