Integrated braking system and working method for railway freight car

Abstract

The present invention discloses an integrated braking system and working method for a railway freight car, which solves the problem of scattered distribution of the braking system in the prior art and has the beneficial effects of realizing integrated installation, convenient installation and maintenance. The specific scheme is as follows: An integrated braking system for a railway freight car, comprising an air brake module, the air brake module is located on one side of a basic brake module, the air brake module and the basic brake module are arranged side by side, the air brake module comprises a brake module hanger that can be installed on a frame, the brake module hanger supports a brake air cylinder and a distribution valve on a side away from the frame, the brake air cylinder is connected to the distribution valve, a first branch pipe of the distribution valve is connected to a train pipeline, a second branch pipe of the distribution valve is connected to the basic brake module through a multi-way joint, the multi-way joint is also connected to an empty-load vehicle conversion device to realize the connection between the basic brake module and the empty-load vehicle conversion device, the distribution valve is located on the outside of the brake module hanger, and the brake air cylinder is located on the inside of the brake module hanger.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle braking, and in particular to an integrated braking system for railway freight cars and a working method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The braking system is one of the key components of railway freight cars and is also an important structure to ensure the safe operation of trains. The structural layout of the braking system is actually the process of connecting and reasonably arranging the train pipes, distribution valves, air cylinders, dust collectors and other functional devices installed on the train through pipes and valves. Since the brake pipeline layout is in a passive position, it often has to give way to the off-board equipment. The layout of the off-board equipment is different, and the frame structure is different, resulting in the design of the braking system for each vehicle type. The installation of the braking system is completely dependent on the frame structure and forms a mutually constrained relationship. It is precisely because of this constraint relationship that the braking system design is passive and the production is passive, which specifically manifests the following problems:

[0004] The components of the brake system are arranged in a scattered manner on the frame, which is not conducive to installation and removal;

[0005] The components are scattered, which results in long pipes between the components. Long pipes increase the risk of leakage.

[0006] Because the components are scattered, it is inconvenient to repair when a failure occurs;

[0007] In addition, after the handbrake is applied, the staff cannot effectively determine whether the handbrake is applying pressure, which makes the operation of the vehicle subject to certain risks. Summary of the invention

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an integrated braking system for railway freight cars to solve the problems of scattered installation components and inconvenient maintenance of the current braking system for railway freight cars, and to effectively improve the safe and reliable operation of the braking system.

[0009] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0010] A railway freight car integrated braking system includes an air brake module, which is located on one side of a basic brake module. The air brake module and the basic brake module are arranged side by side. The air brake module includes a brake module hanger that can be installed on a frame. The brake module hanger supports a brake air cylinder and a distribution valve on a side away from the frame. The brake air cylinder is connected to the distribution valve. The first branch pipe of the distribution valve is connected to a train pipeline. The second branch pipe of the distribution valve is connected to the basic brake module through a multi-way joint. The multi-way joint is also connected to an empty-load vehicle conversion device to achieve connectivity between the basic brake module and the empty-load vehicle conversion device. The distribution valve is located on the outside of the brake module hanger, and the brake air cylinder is located on the inside of the brake module hanger.

[0011] The integrated braking system for railway freight cars as described above further includes a hand brake module, which is connected to the connection between the brake lever and the brake cylinder in the basic brake module, and the train pipeline is connected to the brake pipeline via a threaded structure.

[0012] In the integrated braking system for railway freight cars as described above, the hand brake module includes a rotatable connecting shaft, the connecting shaft cooperates with a gear transmission component, the gear transmission component is connected to a screw via a universal joint, the screw is connected to a pull rod via a slider, the slider cooperates with the screw via a threaded structure, the pull rod is connected to a brake release indication mechanism via a connecting rod, and the end of the pull rod away from the screw is connected to the connection between the brake lever and the brake cylinder.

[0013] In the integrated braking system for railway freight cars as described above, the brake relief indicating mechanism comprises an indicating rod, indicating needles are respectively arranged at both ends of the indicating rod, the indicating rod is arranged along the width direction of the vehicle, and the indicating needles cooperate with an indicating plate fixed to the vehicle frame.

[0014] As described above, in an integrated braking system for a railway freight car, the tie rod comprises a first tie rod and a second tie rod which are connected in sequence, the second tie rod is movably connected to the screw rod, the second tie rod is provided with a U-shaped groove, one end of the connecting rod is hingedly installed in the U-shaped groove; the connecting rod is a crank slider mechanism.

[0015] As described above, a railway freight car integrated braking system, the brake air cylinder includes a first air cylinder and a second air cylinder, the first air cylinder is a double-chamber air cylinder, the first air cylinder is arranged along the length direction of the brake module hanger, the first air cylinder is arranged close to the basic brake module, the second air cylinder is located between the first air cylinder and the distribution valve, the second air cylinder is connected to the empty-loaded vehicle conversion device, when the empty-loaded vehicle conversion device is working, the gas in the brake cylinder flows to the second air cylinder through the multi-way interface.

[0016] In the above-mentioned railway freight car integrated braking system, the empty-load vehicle conversion device is fixed to the brake module hanger through a support frame, the empty-load vehicle conversion device is installed on the side of the distribution valve, and the empty-load vehicle conversion device is arranged away from the first branch pipe;

[0017] The first branch pipe is provided with a dust collector, and both sides of the first branch pipe located between the dust collector and the train pipeline are bent to achieve a reasonable arrangement of the first branch pipe.

[0018] In the above-mentioned railway freight car integrated braking system, the brake module hanger is also equipped with a relief valve pull rod, and the relief valve pull rod is located on one side of the brake air cylinder;

[0019] The second branch pipe bypasses the side of the first air cylinder and is connected to the basic brake module.

[0020] In an integrated braking system for a railway freight car as described above, the basic braking module includes a brake cylinder, both ends of the brake cylinder are respectively connected to one end of a brake lever, the other end of the brake lever is connected to a brake shoe via an upper pull rod, a brake regulator is provided in the middle of the brake lever, the brake regulator is connected to the middle of the brake lever, and a control lever is provided between the brake regulator and the brake lever on one side to control the magnitude of the force applied to the brake shoe.

[0021] In a second aspect, the present invention further discloses a working method of an integrated braking system for a railway freight car, including the following contents:

[0022] The brake air cylinder and the distribution valve are integrated and installed at the brake module hanger, and the brake module hanger is installed on the vehicle frame, so that the brake module hanger is located on one side of the basic brake module;

[0023] The first branch pipe of the distribution valve is connected to the train pipeline, and the second branch pipe of the distribution valve is connected to the basic brake module and the empty-load vehicle conversion device respectively through a multi-way joint;

[0024] During braking, air enters the distribution valve through the brake air cylinder, and then enters the train pipeline through the first branch of the distribution valve for air braking. The air enters the basic brake module through the second branch of the distribution valve, and the basic brake module is activated to brake the vehicle.

[0025] When the vehicle is in the loaded position, the plug gate of the empty-loaded vehicle conversion device is opened, the air is connected to the plug gate of the empty-loaded vehicle conversion device through the multi-way joint, and the air in the basic brake module is discharged through the plug gate of the empty-loaded vehicle conversion device.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1) In the present invention, the various components of the air brake module are not installed separately on the frame, but are integrated and installed on the brake module hanger, which not only facilitates the installation of the air brake module on the frame, but also forms a standard module, which can be installed on different vehicles, which is conducive to the rapid installation of the air brake module and convenient maintenance; the air brake module is located on one side of the basic brake module, and the two are arranged side by side, which is convenient for the arrangement of the first pipeline and the second pipeline. Compared with the prior art, each branch is effectively shortened, reducing the risk of air leakage, which is conducive to reducing the failure rate of the vehicle.

[0028] 2) The hand brake module in the present invention has a reasonable structure. The hand brake module is connected to the pull rod through a screw rod. The pull rod is connected to the connection between the brake lever and the brake cylinder. The pull rod drives one end of the brake lever to move to achieve braking. Through the brake relief indication mechanism, it can be clearly known whether the hand brake is applying force when the vehicle is in a stopped state, thereby ensuring the safety of vehicle operation.

[0029] 3) The components of the air brake module in the present invention are rationally arranged. The second air cylinder is arranged between the first air cylinder and the distribution valve. The space on the upper and lower sides of the second air cylinder is rationally utilized to arrange the branch pipe connected to the distribution valve, which is beneficial to the arrangement of the first branch pipe and the second branch pipe as a whole and effectively shortens the arrangement length of each branch pipe.

[0030] 4) The overall braking system provided by the present invention has a reasonable structural arrangement, so that the originally scattered components are concentrated on the braking module hanger, making the installation and maintenance of components simpler and more efficient, and the branch pipes are shortened, so that the risk of air leakage is reduced, thereby reducing the vehicle failure rate; the braking system is integrated and modularly designed, and the integrated braking system can be installed on different vehicles, which can not only effectively improve the safe and reliable use of the vehicle, but also make the installation process simpler and the subsequent maintenance more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] Figure 1 is a schematic diagram of an integrated braking system for a railway freight car according to one or more embodiments of the present invention.

[0033] Figure 2 The present invention is a schematic diagram of an air brake module in an integrated brake system for a railway freight car according to one or more embodiments of the present invention. Figure 1 .

[0034] Figure 3 The present invention is a schematic diagram of an air brake module in an integrated brake system for a railway freight car according to one or more embodiments of the present invention. Figure 2 .

[0035] Figure 4 It is a partial structural schematic diagram of an empty-loaded vehicle conversion device in an air brake module in an integrated brake system for railway freight vehicles according to one or more embodiments of the present invention.

[0036] Figure 5 It is a schematic diagram of a hand brake module in an integrated brake system for a railway freight car according to one or more embodiments of the present invention.

[0037] Figure 6 It is a schematic diagram of a brake release indicating mechanism in a hand brake module in an integrated brake system for a railway freight car according to one or more embodiments of the present invention.

[0038] Figure 7 It is a schematic diagram of a foundation brake module in an integrated brake system for a railway freight car according to one or more embodiments of the present invention.

[0039] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0040] Among them: 1. Air brake module, 2. Basic brake module, 3. Hand brake module, 4. Train pipeline, 5. Brake hose;

[0041] 1-1. First branch pipe, 1-2. Brake module hanger, 1-3. Dust collector, 1-4. Distribution valve, 1-5. Empty and loaded vehicle conversion device, 1-6. Relief valve pull rod, 1-7. Second air cylinder, 1-8. First air cylinder, 1-9. Pipe clamp, 1-10. Three-way joint;

[0042] 1-21. Frame frame, 1-22. Support frame, 1-23. L-shaped frame, 1-24. U-shaped frame, 1-25. Mounting plate, 1-26. Extension frame, 1-27. Third branch pipe;

[0043] 1-51. Handle, 1-52. Support rod, 1-53. Rotating rod, 1-54. Long groove;

[0044] 2-1. Brake cylinder, 2-2. Brake lever, 2-3. Control lever, 2-4. Brake adjuster, 2-5. Upper pull rod;

[0045] 3-1. hand wheel, 3-2. hand brake shaft guide, 3-3. connecting shaft, 3-4. gear box, 3-5. universal joint, 3-6. screw rod, 3-7. second pull rod, 3-8. brake release indicator mechanism, 3-9. first pull rod, 3-10. chain, 3-11. connecting rod;

[0046] 3-61. Slider, 3-62. Slide;

[0047] 3-81. Indicator rod, 3-82. Indicator needle, 3-83. Indicator dial. DETAILED DESCRIPTION

[0048] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0050] As introduced in the background technology, the components of the brake system in the prior art are arranged in a relatively scattered manner. In order to solve the above technical problems, the present invention proposes an integrated brake system for railway freight cars.

[0051] Embodiment 1

[0052] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a railway freight car integrated braking system includes a train pipeline 4, a hand brake module 3, a basic brake module 2, and an air brake module 1. The air brake module 1 is located on one side of the basic brake module 2. The air brake module 2 and the basic brake module 3 are arranged side by side. The air brake module 1 includes a brake module hanger 1-2 that can be installed on a frame. The brake module hanger 1-2 supports a brake cylinder and a distribution valve 1-4 on a side away from the frame. The brake cylinder is connected to the distribution valve 1-4. The first branch of the distribution valve 1-4 is connected to the train pipeline 4. The second branch of the distribution valve is connected to the basic brake module 2 through a multi-way connector. The multi-way connector is also connected to an empty-load vehicle conversion device 1-5 to achieve connectivity between the basic brake module 2 and the empty-load vehicle conversion device. The distribution valve is located on the outside of the brake module hanger 1-2, and the brake cylinder is located on the inside of the brake module hanger.

[0053] refer to Figure 2As shown, the air brake module 1 includes a brake module hanger 1-2, a first air cylinder 1-8, a relief valve rod 1-6, a distribution valve 1-4, a dust collector 1-3, a second air cylinder 1-7 and an empty-load vehicle conversion device 1-8. The first air cylinder 1-8 is a double-chamber air cylinder. The first air cylinder is arranged along the length direction of the brake module hanger. The first air cylinder 1-8 is arranged close to the basic brake module. The second air cylinder 1-7 is located between the first air cylinder and the distribution valve 1-4. The volume of the second air cylinder 1-7 is smaller than that of the first air cylinder 1-8. The length of the cylinder is smaller than that of the first air cylinder, so that space is left on both sides of the second air cylinder 1-7, which is conducive to the arrangement of branch pipes. The second air cylinder is connected to the empty and loaded vehicle conversion device. When the empty and loaded vehicle conversion device is working, the gas in the brake cylinder flows to the second air cylinder 1-7 through the multi-way interface. The brake module hanger 1-2 is fixed to the frame, and the remaining components are fixed to the air brake module hanger with bolts, thereby making the originally scattered brake system more compact, greatly reducing the vehicle's brake failure rate, and improving the vehicle's maintainability.

[0054] It is easy to understand that the distribution valve 1-4 is provided with multiple branches, and the distribution valve controls the braking and releasing of the entire braking system. One side of the distribution valve is connected to one side of the first air cylinder 1-8 through the third branch pipe 1-27, and the side of the distribution valve 1-4 is connected to one side of the first air cylinder 1-8 through the fourth branch pipe. The fourth branch pipe is arranged along the width direction of the brake module hanger. The third branch pipe and the fourth branch pipe of the distribution valve 1-4 are both connected to the double-chamber air cylinder with branches in the form of flanges to realize rapid braking and releasing of the brake; the first branch pipe 1-1 of the distribution valve is connected to the dust collector 1-3, and the dust collector 1-3 is connected to the train pipeline 4, which not only enables the airflow to flow into the train pipeline 4 through the distribution valve and the dust collector, but also makes the inflowing gas cleaner; both sides of the first branch pipe located between the dust collector 1-3 and the train pipeline are bent to realize the reasonable arrangement of the first branch pipe 1-1.

[0055] The second branch of the distribution valve is connected to the brake cylinder 2-1, and the second branch of the distribution valve 1-4 connecting the brake cylinder 2-1 is provided with a multi-way joint, specifically a three-way joint 1-10, the three-way joint 1-10 is connected to the gate of the empty-load vehicle conversion device, and one end of the gate of the empty-load vehicle conversion device is connected to the second air cylinder 1-7. When the vehicle belongs to the heavy vehicle space, in order to prevent the vehicle from sliding within the braking distance during air braking, the handle 1-51 of the empty-load vehicle conversion device can be used to open the gate of the empty-load vehicle conversion device. A U-shaped tube is connected between the gate of the empty vehicle conversion device and the three-way joint. The brake cylinder is connected to the gate of the empty-load vehicle conversion device through the three-way joint, and the gate of the empty-load vehicle conversion device is connected to the second air cylinder 1-7, so that the air in the brake cylinder flows into the second air cylinder 1-7, reducing the pressure in the brake cylinder, so that the vehicle braking will not slide or scratch.

[0056] Specifically, the brake module hanger 1-2 is welded by square cylinders. Figure 3 As shown, the brake module hanger 1-2 specifically includes a frame 1-21, a support frame 1-22 is arranged in the width direction of the frame 1-21, and both sides of the support frame 1-22 are respectively welded to the frame, and three support frames are arranged from one side to the other side of the brake module hanger 1-2, and L-shaped frames 1-23 are respectively arranged at the first support frame and the third support frame, and two recesses are arranged on the side of the L-shaped frame 1-23 away from the support frame 1-22, and a U-shaped frame 1-24 is arranged on the first air cylinder, and the U-shaped frame 1-24 can cooperate with the L-shaped frame 1-23, and the middle part of the U-shaped frame is recessed toward the first air cylinder, so that the U-shaped frame is stuck in the recess, and the U-shaped frame is fixedly connected to the L-shaped frame.

[0057] An L-shaped frame 1-23 is also provided on the side of the first support frame facing the second support frame, and the second air cylinder 1-7 is installed through the L-shaped frame 1-23. Similarly, a U-shaped frame matching the L-shaped frame is fixed on the back side of the second air cylinder; the length of the third support frame is smaller than the width of the brake module hanger 1-2, and a fourth support frame is provided between the third support frame and the second support frame. The fourth support frame is vertically connected to the third support frame, and the mounting plate 1-25 is fixed by the second support frame and the third support frame, and the distribution valve is fixed on the mounting plate 1-25.

[0058] Among them, the brake module hanger 1-2 is provided with an extension frame 1-26 toward the direction of the first air cylinder 1-8. The extension frame can be a straight frame or an L-shaped frame. The cross section of the extension frame 1-26 is L-shaped. Each branch such as the first branch pipe is fixed to the extension frame by a pipe clamp.

[0059] It needs to be explained that the distribution valve 1-4 is provided with a relief valve, a U-shaped seat is provided on the outside of the relief valve, a relief valve pull rod is installed at the U-shaped seat, and the relief valve pull rod 1-6 is provided along the width direction of the brake module hanger. By operating the relief valve pull rod 1-6, the relief valve is opened, and the air flow path between the relief valve and the distribution valve and the brake cylinder is opened, so that the pressure in the brake cylinder is released, and the vehicle brake is released;

[0060] It should be noted that the empty-load vehicle conversion device 1-5 is an existing empty-load vehicle conversion device for railway freight cars, and the relief valve pull rod is also an existing technology. A plug gate rod is provided at the plug gate of the empty-load vehicle conversion device, and the empty-load vehicle conversion device is provided with a plug gate rod. Figure 4 As shown, one end of the gate rod is inserted into the long groove 1-54 of the rotating rod 1-53, and one end of the rotating rod 1-53 is fixed to the support rod 1-52. The support rod 1-52 is arranged along the width direction of the brake module hanger 1-2, and the support rod is located on the side of the distribution valve away from the first branch pipe. Both ends of the support rod 1-52 are installed on the brake module hanger, and one end of the support rod is connected to the handle 1-51. When the handle 1-51 is turned, the support rod drives the rotating rod to rotate, and then drives the gate rod to open the gate.

[0061] refer to Figure 5 As shown, the hand brake module 3 includes a connecting shaft 3-3, hand wheels 3-1 are respectively arranged at both ends of the connecting shaft 3-3, hand brake shaft guide frames 3-2 are respectively arranged at both ends of the connecting shaft, the hand brake shaft guide frame 3-2 includes a support ring, the support ring is sleeved on the circumferential direction of the connecting shaft 3-3, and both sides of the support ring are fixed on the frame, the connecting shaft 3-3 is connected to the gear inside the gear box 3-4, and there are three bevel gears in the gear box. The three bevel gears cooperate to make the screw 3-6 generate torque, so that the pull rod moves forward or backward; the universal joint 3-5 is connected to the shaft where the bevel gear is located through one end of the elastic round pin, and the other end is connected to the end of the screw. The use of the universal joint 3-5 allows the hand brake module to be installed on a frame of any height, and the braking force generated by the hand brake remains constant without any loss;

[0062] It should be noted that three bevel gears mesh with each other in pairs to form a gear transmission component, two oppositely arranged bevel gears are respectively connected to the connecting shaft, and the other bevel gear is connected to the universal joint.

[0063] refer to Figure 6 As shown, the screw 3-6 cooperates with the slider 3-61 through a threaded structure, one end of the screw is fixed to the frame, the slider is provided with a pin, and the end of the second pull rod is provided with a slide groove 3-62, the pin is located in the slide groove 3-62, when the screw rotates, the slider moves relative to the screw and then drives the second pull rod 3-7 to move, the first pull rod 3-9 is connected to the chain 3-10 through a round pin, one end of the chain 3-10 is connected to the end of the brake lever 2-2, so that the brake lever 2-2 generates a force, so that the force on the basic brake acts on the brake shoe; the brake relief indicator mechanism 3-8 is welded to the second pull rod 3-7 through the connecting rod 3-11, the brake relief indicator mechanism includes an indicator rod 3-81, the middle section of the indicator rod 3-81 is connected to the connecting rod, when the brake is applied, the hand wheel 3-1 is turned to move the second pull rod, the second pull rod 3-7 drives the connecting rod to move, thereby driving the indicator needle to rotate, so that the operator can know the status of the hand brake module 3, to avoid serious accidents caused by forgetting to release the hand brake and driving the vehicle.

[0064] It should be noted that the indicator rod 3-81 is a long rod, which is arranged along the width direction of the vehicle. The connecting rod 3-11 is specifically a crank-connecting rod mechanism. The second pull rod 3-7 is provided with a U-shaped groove. The crank-connecting rod mechanism includes three connecting rods. One end of a connecting rod of the crank-connecting rod mechanism is hingedly installed at the U-shaped groove, and the other connecting rod of the crank-connecting rod mechanism is fixedly connected to the indicator rod 3-81. Indicator plates 3-83 are fixed on both sides of the frame, and indicator needles 3-82 are respectively provided at both ends of the indicator rod, and the indicator needles are rotatable relative to the indicator plates.

[0065] refer to Figure 7As shown, in the basic brake module 2, the end of the brake cylinder is connected to the distribution valve in the air brake module by a branch pipe for inputting gas to generate pressure in the brake cylinder 2-1, and the two ends of the brake cylinder are connected to one end of the brake lever by a round pin and a cotter pin, and the other end of the brake lever 2-2 is connected to the upper pull rod 2-5, and the upper pull rod 2-5 acts on the brake shoe of the wheel. The action of the brake lever 2-2 enables the brake cylinder to complete the transmission of the brake cylinder pressure; a brake regulator is provided in the middle of the brake lever 2-2, and the brake regulator 2-4 is connected to the middle of the brake lever, and a control lever 2-3 is provided between the brake regulator 2-4 and the brake lever on one side to control the magnitude of the force applied to the brake shoe.

[0066] It should also be noted that the train pipeline 4 is located above the first air cylinder 1-8, and the train pipeline is connected to the brake hose 5 through a threaded structure. The brake hose can be connected to the adjacent vehicle hose to achieve airflow transmission in the pipeline.

[0067] It is easy to understand that the train pipeline 4 is installed on the frame through a fixing seat.

[0068] This embodiment also provides a working method of the integrated braking system for a railway freight car, including the following contents:

[0069] The brake air cylinder and the distribution valve are integrated and installed at the brake module hanger, and the brake module hanger is installed on the vehicle frame, so that the brake module hanger is located on one side of the basic brake module;

[0070] The first branch pipe of the distribution valve is connected to the train pipeline, and the second branch pipe of the distribution valve is connected to the basic brake module and the empty-load vehicle conversion device respectively through a multi-way joint;

[0071] During braking, air enters the distribution valve through the brake air cylinder, and then enters the train pipeline through the first branch of the distribution valve for air braking. The air enters the basic brake module through the second branch of the distribution valve, and the basic brake module is activated to brake the vehicle.

[0072] When the vehicle is in the loaded position, the plug gate of the empty-loaded vehicle conversion device is opened, the air is connected to the plug gate of the empty-loaded vehicle conversion device through the multi-way joint, and the air in the basic brake module is discharged through the plug gate of the empty-loaded vehicle conversion device.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A railway freight car integrated braking system, characterized in that: It includes an air brake module, which is located on one side of the basic brake module. The air brake module and the basic brake module are arranged side by side. The air brake module includes a brake module hanger that can be installed on a frame. The side of the brake module hanger away from the frame supports a brake cylinder and a distribution valve. The brake cylinder is connected to the distribution valve. The first branch pipe of the distribution valve is connected to the train pipeline. The second branch pipe of the distribution valve is connected to the basic brake module through a multi-way joint. The multi-way joint is also connected to an empty-load vehicle conversion device to achieve connectivity between the basic brake module and the empty-load vehicle conversion device. The distribution valve is located on the outside of the brake module hanger, and the brake cylinder is located on the inside of the brake module hanger.

2. The integrated braking system for railway freight cars according to claim 1, characterized in that: It also includes a hand brake module, which is connected to the connection between the brake lever and the brake cylinder in the basic brake module, and the train pipeline is connected to the brake pipeline through a threaded structure.

3. The integrated braking system for railway freight cars according to claim 2, characterized in that: The hand brake module includes a rotatable connecting shaft, which cooperates with a gear transmission component, the gear transmission component is connected to a screw rod through a universal joint, the screw rod is connected to a pull rod through a slider, the slider and the screw are cooperated with a threaded structure, the pull rod is connected to a brake release indication mechanism through a connecting rod, and one end of the pull rod away from the screw rod is connected to the connection between the brake lever and the brake cylinder.

4. The integrated braking system for railway freight cars according to claim 3, characterized in that: The brake relief indicating mechanism comprises an indicating rod, and indicating needles are respectively arranged at both ends of the indicating rod. The indicating rod is arranged along the width direction of the vehicle, and the indicating needles cooperate with an indicating plate fixed to the vehicle frame.

5. The integrated braking system for railway freight cars according to claim 3, characterized in that: The pull rod comprises a first pull rod and a second pull rod connected in sequence, the second pull rod is movably connected to the screw rod, the second pull rod is provided with a U-shaped groove, and one end of the connecting rod is hingedly installed in the U-shaped groove; The connecting rod is a crank slider mechanism.

6. The railway freight car integrated braking system according to claim 1, characterized in that: The brake air cylinder includes a first air cylinder and a second air cylinder. The first air cylinder is a double-chamber air cylinder. The first air cylinder is arranged along the length direction of the brake module hanger. The first air cylinder is arranged close to the basic brake module. The second air cylinder is located between the first air cylinder and the distribution valve. The second air cylinder is connected to the empty-load vehicle conversion device.

7. The integrated braking system for railway freight cars according to claim 6, characterized in that: The empty-load vehicle conversion device is fixed to the brake module hanger through a support frame, the empty-load vehicle conversion device is installed on the side of the distribution valve, and the empty-load vehicle conversion device is arranged away from the first branch pipe; The first branch pipe is provided with a dust collector, and both sides of the first branch pipe located between the dust collector and the train pipeline are bent.

8. The railway freight car integrated braking system according to claim 1, characterized in that: The brake module hanger is also equipped with a relief valve pull rod, which is located on one side of the brake air cylinder; The second branch pipe bypasses the side of the first air cylinder and is connected to the basic brake module.

9. The railway freight car integrated braking system according to claim 2, characterized in that: The basic brake module includes a brake cylinder, both ends of which are respectively connected to one end of a brake lever, the other end of the brake lever is connected to a brake shoe through an upper pull rod, a brake regulator is provided in the middle of the brake lever, the brake regulator is connected to the middle of the brake lever, and a control lever is provided between the brake regulator and the brake lever on one side to control the magnitude of the force applied to the brake shoe.

10. A working method of a railway freight car integrated braking system according to any one of claims 1 to 9, characterized in that: It includes the following: The brake air cylinder and the distribution valve are integrated and installed at the brake module hanger, and the brake module hanger is installed on the vehicle frame, so that the brake module hanger is located on one side of the basic brake module; The first branch pipe of the distribution valve is connected to the train pipeline, and the second branch pipe of the distribution valve is connected to the basic brake module and the empty-load vehicle conversion device respectively through a multi-way joint; During braking, air enters the distribution valve through the brake air cylinder, and then enters the train pipeline through the first branch of the distribution valve for air braking. The air enters the basic brake module through the second branch of the distribution valve, and the basic brake module is activated to brake the vehicle. When the vehicle is in the loaded position, the plug gate of the empty-loaded vehicle conversion device is opened, the air is connected to the plug gate of the empty-loaded vehicle conversion device through the multi-way joint, and the air in the basic brake module is discharged through the plug gate of the empty-loaded vehicle conversion device.

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