Self-lubricating manual braking device of railway wagon

Abstract

A self-lubricating manual brake device of a railway wagon comprises a brake disc and a brake friction piece. The brake disc is synchronously installed on a shaft body of the transmission shaft, two sets of brake clamping jaws are erected at the upper end and the lower end of the brake disc, the brake ends of the brake clamping jaws make friction contact with the brake disc through brake friction pieces, and the drive ends of the brake clamping jaws are in transmission connection with a built-in drive shaft section of the manual brake mechanism through piston assemblies. According to the self-lubricating manual braking device of the railway wagon, a spiral feeding driving mode is adopted, and the technical problems that potential safety hazards exist when a pull rod is manually adjusted to complete braking in the past, and meanwhile operation is inconvenient are solved. And meanwhile, due to the bidirectional symmetrical braking design, the braking efficiency can be improved, and meanwhile braking balance can be kept. In the braking process, the braking progress can be judged by observing the transmission state of the driving shaft section.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway freight car brake devices, in particular to a railway freight car self-lubricating manual brake device. Background Art

[0002] The manual brake system for railway freight cars is an indispensable and key component in railway transportation, playing a vital role in the safe operation of trains. With the development of railway transportation, the manual brake system has also undergone an evolution from simple to complex, and from inefficient to efficient.

[0003] Railway freight car manual braking equipment, as an important part of the railway freight car braking system, plays a vital role in ensuring the safe operation of the train.

[0004] The inconvenience of operating the existing manual brake device is a problem of the current manual brake device. The traditional manual brake device requires the driver to pull the handle or press the button to realize the braking operation, which easily puts a great physical burden on the driver during emergency braking or long-term braking.

[0005] Therefore, the present application provides a self-lubricating manual brake device for railway freight cars. The present application adopts a spiral feed drive method to solve the technical problems of safety hazards and inconvenient operation in the past when manually adjusting the pull rod to complete braking. At the same time, the bidirectional symmetrical braking design can improve the braking efficiency while maintaining the braking balance. The braking process can be judged by observing the transmission status of the drive shaft section. Due to the exposed state of the structure, the lubrication process needs to be completed manually. The status of the brake device can be directly observed on the structure, and the subsequent maintenance process can be completed through daily observation. Summary of the Invention

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is as follows:

[0007] A self-lubricating manual brake device for a railway freight car comprises a brake disc and a brake friction member; the brake disc is synchronously mounted on a drive shaft, and two sets of brake jaws are mounted on the upper and lower end frames of the brake disc; the braking ends of the brake jaws are in frictional contact with the brake disc via the brake friction member, and the driving end of the brake jaws is transmission-connected to a built-in drive shaft section of a manual brake mechanism via a piston assembly.

[0008] Furthermore, the manual brake mechanism includes a hand-operated wheel, a screw, a folding arm and a drive shaft segment;

[0009] The screw is mounted on the railway wagon mounting plate through two sets of front and rear fixed base fixing frames, and a hand wheel is mounted on the screw;

[0010] A folding arm is installed between the hand dial wheel and the fixed base via a rotating shaft, and the folding arm is transmission-connected to the transmission end of the driving shaft segment via a driving joint.

[0011] Furthermore, the bottom of the hand wheel is connected to the upper section of the folding arm through a rotating shaft, and the end of the folding arm is installed with a driving joint; the end of the lower section of the folding arm is transmission-connected to the driving joint, and the head end of the folding arm is connected to the base at the bottom position through a rotating shaft.

[0012] Furthermore, a friction layer is retained between the brake disc and the brake friction member.

[0013] Furthermore, the drive shaft segments are distributed in a mirror-image structure along the screw rod, and a guide rail plate is installed on the outer side of the drive shaft segments.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the existing technology, the present application provides a self-lubricating manual brake device for railway freight cars. The present application adopts a spiral feed drive method to solve the technical problems of safety hazards and inconvenient operation in the past when manually adjusting the pull rod to complete braking. At the same time, the two-way symmetrical braking design can improve the braking efficiency while maintaining the braking balance. The braking process can be judged by observing the transmission status of the drive shaft section. Due to the exposed state of the structure, the lubrication process needs to be completed manually. The status of the brake device can be directly observed on the structure, and the subsequent maintenance process can be completed through daily observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a partial structural diagram of a self-lubricating manual brake device for a railway freight car.

[0017] Figure 2 The utility model is a top view of the manual brake mechanism of a self-lubricating manual brake device for railway freight cars.

[0018] List of Figure Symbols:

[0019] 2 is the transmission shaft, 4 is the brake clamp, 5 is the friction layer, 6 is the brake disc, 7 is the brake friction part, 9 is the piston assembly, 10 is the manual brake mechanism, 11 is the mounting plate, 12 is the hand dial wheel, 13 is the fixed base, 14 is the folding arm, 15 is the drive joint, 16 is the drive shaft section, and 17 is the screw. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0021] like Figure 1 and Figure 2 As shown, a self-lubricating manual brake device for a railway freight car includes a brake disc and a brake friction member. The brake disc 6 is synchronously mounted on the shaft body of the drive shaft 2. Two sets of brake jaws 4 are mounted on the upper and lower ends of the brake disc 6. The braking ends of the brake jaws 4 are in frictional contact with the brake disc 6 via the brake friction member 7. The driving ends of the brake jaws 4 are transmission-connected to the internal drive shaft section 16 of the manual brake mechanism 10 via the piston assembly 9. The brake disc 6 serves as the brake drive structure. This application utilizes the brake jaws 4 in conjunction with the brake friction member 7 to complete the braking process. Compared to the previous one-way brake contact structure, this application adopts a bidirectional braking structure with upper and lower braking. The mirror-distributed brake components achieve a balanced braking process, ensuring stable braking.

[0022] like Figure 1 and Figure 2 As shown, the manual brake mechanism 10 includes a hand-operated wheel 12, a screw 17, a folding arm 14 and a drive shaft section 16;

[0023] The screw rod 17 is mounted on the railway wagon mounting plate 11 via two sets of front and rear fixed bases 13. A hand-operated dial 12 is mounted on the screw rod 17. The hand-operated dial 12 operates by turning a knob to achieve the brake feed drive process. Compared to conventional pull rod structures that resist reaction force, this design is more convenient to operate.

[0024] A folding arm 14 is mounted between the hand wheel 12 and the fixed base 13 via a rotating shaft. This arm 14 is connected to the transmission end of a drive shaft segment 16 via a drive joint 15. The drive shaft segment 16 is arranged in a mirrored configuration along a screw 17, and a guide plate is mounted on the outside of the drive shaft segment 16. The drive structure of the folding arm 14 enables bidirectional synchronous drive, achieving a synchronous braking effect.

[0025] like Figure 1 and Figure 2 As shown, the bottom of the hand wheel 12 is connected to the upper section of a folding arm 14 via a rotating shaft, and the end of the folding arm 14 is installed with a driving joint 15. The end of the lower section of the folding arm 14 is in transmission connection with the driving joint 15, and the top end of the folding arm 14 is connected to the base 13 at the bottom via a rotating shaft. The front and rear mounting structure of the base 13 further stabilizes the installation position of the screw 17, avoiding the need to align the screw 17 with the installation center during installation, which wastes time and manpower.

[0026] like Figure 1 and Figure 2 As shown, a friction layer 5 is retained between the brake disc 6 and the brake friction member 7. The friction layer 5 can be used as a replacement wear member for the brake disc 6 to extend the service life of the brake disc 6.

[0027] It should be noted that the above content only illustrates the technical idea of ​​the utility model and cannot be used to limit the protection scope of the utility model. For ordinary technicians in this technical field, they can make several improvements and modifications without departing from the principles of the utility model. These improvements and modifications all fall within the protection scope of the claims of the utility model.

Claims

1. A self-lubricating manual brake device for a railway freight car, comprising a brake disc and a brake friction member; wherein: The brake disc (6) is synchronously mounted on the shaft body of the transmission shaft (2); two sets of brake clamps (4) are mounted on the upper and lower ends of the brake disc (6); the brake ends of the brake clamps (4) are in frictional contact with the brake disc (6) via a brake friction member (7); and the drive ends of the brake clamps (4) are in transmission connection with a built-in drive shaft section (16) of a manual brake mechanism (10) via a piston assembly (9).

2. A railway freight car self-lubricating manual brake device according to claim 1, characterized in that: The manual brake mechanism (10) comprises a hand-operated wheel (12), a screw rod (17), a folding arm (14) and a drive shaft section (16); The screw rod (17) is mounted on the railway freight car mounting plate (11) through two sets of front and rear fixed bases (13) fixing frames, and a hand wheel (12) is mounted on the screw rod (17); A folding arm (14) is installed between the hand-turning wheel (12) and the fixed base (13) via a rotating shaft, and the folding arm (14) is drivingly connected to the driving end of the driving shaft section (16) via a driving joint (15).

3. A railway freight car self-lubricating manual brake device according to claim 2, characterized in that: The bottom of the hand wheel (12) is connected to the upper section of a folding arm (14) via a rotating shaft, and a driving joint (15) is installed at the end of the folding arm (14); the end of the lower section of the folding arm (14) is transmission-connected to the driving joint (15), and the head end of the folding arm (14) is connected to the base (13) at the bottom position via a rotating shaft.

4. The self-lubricating manual brake device for railway freight cars according to claim 1, characterized in that: A friction layer (5) is retained between the brake disc (6) and the brake friction member (7).

5. The self-lubricating manual brake device for railway freight cars according to claim 2, characterized in that: The drive shaft section (16) is in a mirror-image distribution structure along the screw rod (17), and a guide rail plate is installed on the outside of the drive shaft section (16).

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