CN-224225072-U - Emergency braking device for cargo container of rail transport vehicle

Abstract

The utility model relates to the field of rail conveyors, in particular to an emergency braking device for a cargo container on a rail conveyor, which comprises a rack, a cargo container and a driving device, wherein the cargo container is provided with a wheel shaft, a fixed rod and a brake ejector rod, a gear and a brake drum are arranged on the wheel shaft, the gear is meshed with the rack, the brake ejector rod is connected with the fixed rod through an elastic piece, the elastic piece is used for driving a brake shoe of the brake ejector rod to abut against the inner wall of the brake drum, the driving device is connected with the brake ejector rod through a pre-tensioning piece, and the pre-tensioning piece is used for driving the brake shoe of the brake ejector rod to leave the inner wall of the brake drum. The emergency braking structure of the emergency braking device for the cargo container of the rail transportation machine can trigger braking in an emergency state, does not influence the running of the rail transportation machine in a normal state, is purely mechanically triggered, does not need external power supply guarantee, has a simple structure and obvious braking effect, and can rapidly remove braking through manual operation after the braking device is triggered.

Inventors

• WEI HENG
• WENG ZUQIANG
• ZHANG HUOLIANG
• CHEN SIPENG

Assignees

• 福建省农业机械化研究所(福建省机械科学研究院）

Dates

Publication Date

20260512

Application Date

20250514

Claims (10)

1. 1. The emergency braking device for the cargo container of the rail transport vehicle is characterized by comprising racks, the cargo container and a driving device; The cargo carrying container is provided with a wheel shaft, a fixed rod and a brake ejector rod, the wheel shaft is provided with a gear and a brake drum, the gear is meshed with the rack, the brake ejector rod is connected with the fixed rod through an elastic piece, the elastic piece is used for driving a brake shoe of the brake ejector rod to abut against the inner wall of the brake drum, the driving device is connected with the brake ejector rod through a pre-tensioning piece, and the pre-tensioning piece is used for driving the brake shoe of the brake ejector rod to leave the inner wall of the brake drum.
2. 2. The emergency brake device for a cargo box of a rail transportation vehicle according to claim 1, wherein the brake jack comprises a first connecting rod and a second connecting rod which are perpendicular to each other, the first connecting rod is fixedly connected with the fixing rod, the second connecting rod is slidably connected with the first connecting rod, the second connecting rod is connected with the fixing rod through an elastic piece, and the second connecting rod is respectively connected with the brake shoe and the pretensioning piece.
3. 3. An emergency brake for a cargo box on a rail transportation vehicle according to claim 2, wherein the fixing rod is provided with a through hole for the pretensioning member to pass through.
4. 4. The emergency brake device for a cargo box of a rail transportation vehicle according to claim 1, further comprising a rail body, wherein the rack is disposed on the rail body, and wherein the cargo box is provided with a driven wheel group disposed on the rail body.
5. 5. The emergency brake apparatus of a cargo box for a rail transportation vehicle according to claim 4, wherein the driven wheel set is connected to the mounting frame, and the wheel shaft, the fixing rod and the brake jack are all disposed on the mounting frame.
6. 6. The emergency brake apparatus for a cargo box on a rail transportation vehicle according to claim 4, wherein the driven wheel set and the gear are respectively located at upper and lower sides of the rail body.
7. 7. The emergency brake device for a cargo box of a rail transportation vehicle according to claim 1, wherein one end of the brake shoe is provided with a fulcrum shaft connected to the cargo box.
8. 8. The emergency brake device for a cargo box on a rail transportation vehicle according to claim 1, wherein the other end of the brake shoe is provided with a friction member for friction braking with an inner wall of the brake drum.
9. 9. The emergency brake device for a cargo box of a rail transportation vehicle according to claim 1, wherein the elastic member is a limiting spring.
10. 10. The emergency brake device for a cargo box on a rail transport vehicle according to claim 1, wherein the pretensioning member is a brake cable.

Description

Emergency braking device for cargo container of rail transport vehicle Technical Field The utility model relates to the field of rail conveyors, in particular to an emergency braking device for a cargo box on a rail conveyor. Background The track conveyor lays tracks according to the topography for transporting fruits and fertilizers, and well solves the problem of difficult work in rural areas. The structure of the rail conveyor can refer to the China patent application with the application number of CN202410080641.6 and the name of a rail conveyor remote control and safety monitoring system. The device mainly comprises a driving transmission device, a control device, a track, a cargo carrying container and the like. The driving transmission device is hinged with the cargo carrying box through a connecting rod. A self-propelled rail conveyor using an internal combustion engine (gasoline engine and diesel engine) as power is provided with a service brake, a parking brake and a speed limiting brake for ensuring operation safety, wherein the parking brake is also used as an emergency brake. All three braking devices are arranged on the driving transmission device, and the cargo carrying container is generally provided with no independent emergency braking device. Under normal conditions, the driving transmission device is connected with the cargo container through the connecting rod, and the cargo container is driven or braked passively. If the connecting rod breaks or connecting parts fall off in the operation process, the driving transmission device is separated from the cargo carrying container accidentally, the cargo carrying container is in an uncontrollable state, the cargo carrying container is likely to stall, and further the problems of personnel life and property loss and the like are caused. The speed limiting brake can automatically limit the speed when the speed is high, and the other two brakes are manually operated or driven to a specified position for braking. The cargo container is connected with the driving transmission device through the connecting rod, driven or braked, and the cargo container is not provided with a braking device. The cargo box with a small part of cargo is provided with a braking device, and is usually triggered to brake after the power supply is used for measuring the speed or measuring the distance in infrared mode, and the structure is complex, or the braking device is triggered through the fixed position mounting deflector rod, once the power supply is powered off or fails, the cargo box braking device cannot be triggered. The toggle lever is arranged at a designated position for triggering, and the device cannot be used in an emergency state. Disclosure of utility model The utility model aims to solve the technical problem of providing the emergency braking device for the cargo box of the rail transport vehicle, which has the advantages of simple structure and reliable performance. In order to solve the technical problems, the utility model adopts the technical scheme that the emergency braking device for the cargo container of the rail transport vehicle comprises a rack, a cargo container and a driving device; The cargo carrying container is provided with a wheel shaft, a fixed rod and a brake ejector rod, the wheel shaft is provided with a gear and a brake drum, the gear is meshed with the rack, the brake ejector rod is connected with the fixed rod through an elastic piece, the elastic piece is used for driving a brake shoe of the brake ejector rod to abut against the inner wall of the brake drum, the driving device is connected with the brake ejector rod through a pre-tensioning piece, and the pre-tensioning piece is used for driving the brake shoe of the brake ejector rod to leave the inner wall of the brake drum. Further, the brake ejector rod comprises a first connecting rod and a second connecting rod which are perpendicular to each other, the first connecting rod is fixedly connected with the fixed rod, the second connecting rod is connected with the first connecting rod in a sliding mode, the second connecting rod is connected with the fixed rod through an elastic piece, and the second connecting rod is respectively connected with the brake shoe and the pretensioning piece. Further, the fixing rod is provided with a through hole for the pretensioning member to pass through. Further, still include the track main part, the rack setting is in the track main part, and the cargo box is equipped with driven wheelset, and driven wheelset sets up in the track main part. Further, the driven wheel group is connected with the mounting frame, and the wheel shaft, the fixing rod and the brake ejector rod are all arranged on the mounting frame. Further, the driven wheel group and the gear are respectively positioned at the upper side and the lower side of the track main body. Further, one end of the brake shoe is provided with a fulcrum shaft connected with the cargo con