TWI664104B - Interlocking brake system with anti-failure function - Google Patents

Abstract

This creation is a linked brake system with anti-failure function. It includes a diverter valve, a front brake assembly and a rear brake assembly. The diverter valve includes a housing, a piston, and a reset member. The piston system can move axially. It is located in the casing and divides the piston chamber inside the casing into a first container chamber and a second container chamber. The front brake assembly communicates with the first container chamber and the rear brake assembly communicates with the second container chamber. The brake system is used to set the locomotive, and enables the driver to brake the front brake component and the rear brake component at the same time when braking, in order to increase the stability of the locomotive during braking deceleration, and the piston in the diverter valve can separate The front brake component and the rear brake component can effectively prevent the front brake component and the rear brake component from failing at the same time, thereby improving safety.

Description

Interlocking brake system with anti-failure function

This creation is an interlocking brake system with anti-failure function, especially the brake system used for locomotive.

In daily life, because of the good mobility and lightness of locomotives, locomotives have become a substitute for most people today. Among them, the braking systems of today's locomotives are mostly independent of the front and rear wheels. Drivers can press the The brake handle on the right side of the locomotive faucet is used to brake the front wheels; the brake on the left side of the locomotive faucet is used to brake the rear wheels. However, when an emergency brake is performed, the driver will habitually press the brake handle on the left side of the locomotive faucet. The independent braking system of the rear wheels will lock the rear wheels, which will cause the locomotive to fall unstable and fall down, which will cause problems such as traffic accidents.

In order to avoid the aforementioned problems, some locomotives will use a combination braking system (CBS). The combination braking system mainly connects the brake oil circuits of the front and rear wheels with each other, and is equipped with a delay valve to enable driving. When a person presses the brake handle on the left side of the locomotive faucet, the hydraulic pressure in the brake oil passage can be distributed by the delay valve, so that the front wheel brake and the rear wheel brake can be actuated.

The aforementioned interlocking braking system can effectively improve the stability of the locomotive during deceleration and reduce the braking distance. However, if any of the interlocking braking systems breaks the brake oil pipe and causes oil leakage, it will cause the locomotive to go to the front wheels The brakes of the vehicle and the brakes of the rear wheels are disabled, so that when the locomotive is on the road, it will be unable to brake immediately and there are doubts about safety.

The main purpose of this creation is to provide an interlocking brake system with anti-failure function, in order to improve the problem that the brakes of the front and rear wheels fail at the same time when the brake oil circuit of the current interlocking brake system is broken.

In order to achieve the purpose of the previous disclosure, the linked brake system with anti-failure function of this creation includes: a diverter valve, which includes a housing, a piston, and a reset member, a piston chamber is formed inside the housing, and includes a communication chamber A first pressurized flow passage, a second pressurized flow passage, and an active flow passage in the piston chamber. The first pressurized flow passage is axially opposed to the second pressurized flow passage. It is arranged in the piston chamber of the casing in a moving direction and partitions the piston chamber of the casing into a first container chamber and a second container chamber. The first pressurized flow channel and the active flow channel are respectively connected to the first chamber. A second pressure chamber is connected to the second chamber, and the reset member is disposed in the housing and is located in the first chamber. The two opposite ends of the reset member respectively abut against each other. The inner side of the casing and the piston, and the axial movement of the piston in the piston chamber can switch the state of communication between the first pressurized flow path and the first chamber; a front brake assembly including a front Brake handle, at least one front brake, a first front brake hose, a second front A moving oil pipe and a first fluid, the first front brake oil pipe system is connected to the front brake handle, and communicates with the first pressurized flow passage of the diverter valve; the second front brake oil pipe system is connected with the front brake, and communicates with the front brake The flow path of the diverter valve, the first flow system is filled in the first front brake oil pipe, the second front brake oil pipe, the first pressurized flow passage, the first chamber and the active flow passage; The brake assembly includes a rear brake handle, a rear brake, a rear brake oil circuit, and a second fluid. The rear brake oil circuit is connected to the rear brake handle and the rear brake, and is connected to the second valve of the diverter valve. Pressure flow path, the second flow system is filled in the rear brake oil path, the second pressurized flow path and the second container.

The brake system with anti-failure function is provided in the locomotive. The front brake of the front brake assembly is provided at the front wheel of the locomotive, and the rear brake of the rear brake assembly is provided at the rear wheel of the locomotive. At the same time, the driver can press the rear brake assembly and then brake the handlebar, so that the front brake and the rear brake can be activated at the same time, so as to improve the stability of the locomotive braking deceleration and shorten the braking distance.

In addition, since the piston in the diverter valve can separate the first fluid and the second fluid, and make the front brake assembly and the rear brake assembly independent, respectively, when there is any failure in the linked brake system with anti-failure function When a pipe ruptures causing the first or second fluid inside to leak, the front brake assembly and the rear brake assembly will not fail at the same time, so the driver can still operate the front brake assembly and the rear brake assembly by The braking of the unbroken components can effectively prevent the braking system of the locomotive from failing, thereby improving safety.

10‧‧‧ diverter valve

11‧‧‧shell

12‧‧‧ Pistons

13‧‧‧Reset

14‧‧‧Piston chamber

141‧‧‧First room

142‧‧‧Second Room

15‧‧‧ the first pressurized runner

16‧‧‧Second pressurized runner

17‧‧‧ acting runner

20‧‧‧ Front brake assembly

21‧‧‧Front brake handle

22‧‧‧Front brake

23‧‧‧The first front brake hose

24‧‧‧Second front brake hose

30‧‧‧ Rear brake assembly

31‧‧‧Rear brake lever

32‧‧‧ rear brake

33‧‧‧Rear brake oil circuit

34‧‧‧foot brake pump

341‧‧‧ Foot pressurization mechanism

331‧‧‧first rear brake hose

332‧‧‧Second rear brake hose

Fig. 1: Schematic diagram of the first preferred embodiment of the linked brake system with anti-failure function.

Fig. 2: Schematic sectional view of the diverter valve of the linked brake system with anti-failure function.

FIG. 3 is a schematic diagram of a second preferred embodiment of the linked brake system with anti-failure function.

FIG. 4 is a schematic diagram illustrating the operation of the brake assembly before the second preferred embodiment of the linked braking system with anti-failure function.

FIG. 5 is a schematic diagram illustrating the operation of the brake assembly after the second preferred embodiment of the linked braking system with anti-failure function is created.

Figure 6: Schematic diagram of the brake component failure of the linked brake system with anti-failure function.

Figure 7: Schematic diagram of the failure of the brake assembly after the linked brake system with anti-failure function is created.

Please refer to FIG. 1, which is a first preferred embodiment of the linked brake system with anti-failure function, which includes a diverter valve 10, a front brake assembly 20 and a rear brake assembly 30.

As shown in FIG. 1 and FIG. 2, the diverter valve 10 includes a housing 11, a piston 12, and a reset member 13. A piston chamber 14 is formed inside the housing 11, and a first chamber 14 communicates with the piston chamber 14. A pressurized flow path 15, a second pressurized flow path 16, and an action flow path 17, the first pressurized flow path 15 is located on one side of the piston chamber 14, and the second pressurized flow path 16 and the action The flow passage 17 is oppositely disposed at both ends of the piston chamber 14 in the axial direction. The piston 12 is axially movably disposed in the piston chamber 14 of the casing 11, and the piston 12 is arranged in the piston chamber 14 of the casing 11. It is divided into a first container 141 and a second container 142. The first pressurized flow channel 15 and the active flow channel 17 communicate with the first container 141, and the second pressurized flow channel 16 communicates with the first container. The second container chamber 142, the reset member 13 is disposed in the casing 11 and is located in the first container chamber 141, and the two opposite ends of the reset member 13 abut against the inner side of the casing 11 and The piston 12 and the axial movement of the piston 12 in the piston chamber 14 can switch the state of communication or non-communication between the first pressurized flow channel 15 and the first receiving chamber 141, wherein the restoring 13 as a spring member.

As shown in FIGS. 1 and 2, the front brake assembly 20 includes a front brake handle 21, at least one front brake 22, a first front brake oil pipe 23, a second front brake oil pipe 24, and a first fluid. A front brake oil pipe 23 is connected to the front brake handle 21 and communicates with the first pressurized flow path 15 of the diverter valve 10, and a second front brake oil pipe 24 is connected to the front brake 22 and communicates with the diverter valve 10 The working flow channel 17 fills the first front brake oil pipe 23, the second front brake oil pipe 24, the first pressurized flow channel 15, the first container 141, and the working flow channel 17, The first fluid is brake fluid.

As shown in FIGS. 1 and 2, the rear brake assembly 30 includes a rear brake handle 31, a rear brake 32, a rear brake oil passage 33, and a second fluid. The rear brake oil passage 33 is connected to the rear brake handle. 31 and the rear brake 32, and connected to the second pressurized flow path 16 of the diverter valve 10, the second flow system is filled in the rear brake oil passage 33, the second pressurized flow path 16 and the second chamber In 142, the second fluid is brake fluid.

The linked brake system with anti-failure function is provided in the locomotive. The front brake assembly 20 and the front brake 22 are provided at the front wheel of the locomotive. The rear brake assembly 30 and the rear brake 32 are provided at the vehicle. The rear wheel of the locomotive.

When the interlocked braking system with anti-failure function is used to be installed on a locomotive with two front wheels, the front brake assembly 20 of the interlocked braking system with anti-failure function can include two front brakes 22, and the front brake assembly 20 The second front brake oil pipe 24 is connected to the two front brakes 22 in parallel.

As shown in FIG. 2 and FIG. 3, in the second preferred embodiment of the present invention, the rear brake assembly 30 may further include a foot brake pump 34, and the rear brake oil path 33 includes a first rear brake A brake oil pipe 331 and a second rear brake oil pipe 332 are connected to the rear brake handle 31 and the foot brake pump 34, and the second rear brake oil pipe 332 is connected to the foot brake pump 34 and the The rear brake 32 communicates with the second pressurizing flow path 16 of the diverter valve 10. In addition, the foot brake pump 34 has a pressurizing space (not shown) and a foot pressurizing mechanism 341. The rear brake oil pipe 331 and the second rear brake oil pipe 332 are connected to the pressurizing space, and the foot pressurizing mechanism 341 can selectively compress the pressurizing space.

As shown in FIG. 2, the first pressurized flow path 15 of the diverter valve 10 and the first chamber 141 are in a connected state in a normal state. As shown in FIGS. 2 and 4, when the driver presses the front brake When the handlebar 21 is used, the front brake handlebar 21 will pressurize the first fluid of the front brake assembly 20, and after the first fluid passes through the first chamber 141 of the diverter valve 10, the front brake 22 will be actuated.

As shown in FIG. 2 and FIG. 5, when the driver presses the rear brake handle 31 or steps on the foot brake pump 34, the rear brake handle 31 or the foot brake pump 34 may cause the rear brake assembly The second fluid 30 is pressurized. After being pressurized by the rear brake handle 31 or the foot brake pump 34, the second fluid will drive the rear brake 32 to operate, and at the same time, it will flow into the interior of the diverter valve 10. In the second chamber 142, the piston 12 in the diverter valve 10 is pushed, so that the piston 12 pushes the first fluid in the first chamber 141 to drive the front brake 22, thereby reaching the front brake 22 And the effect of interlocking the rear brake 32.

As shown in FIG. 2 and FIG. 5, when the piston 12 of the diverter valve 10 moves, the piston 12 cuts off the communication state between the first pressurized flow channel 15 and the first container 141. In order to avoid the situation where the first fluid is pushed back by the piston 12, when the driver releases the rear brake handle 31 or the foot brake pump 34, the reset member 13 will move the piston 12 Reset, and return the first pressurized flow channel 15 and the first chamber 141 to a communication state.

Among them, since the piston 12 in the diverter valve 10 can separate the first fluid and the second fluid and make the front brake assembly 20 and the rear brake assembly 30 independent, respectively, as shown in FIG. 6, when the In the case where the rear brake assembly 30 has a broken pipe and the second fluid leaks, the front brake assembly 20 can still act independently without being affected by the second fluid leakage of the rear brake assembly 30; for the same reason, As shown in FIG. 7, when the front brake assembly 20 has a broken pipe and the first fluid leaks, the rear brake assembly 30 can also act independently without receiving the first fluid of the front brake assembly 20 The effect of leakage can effectively avoid the failure of the braking system of the locomotive, thereby improving safety.

To sum up, in addition to the fail-safe interlocking braking system, the present invention can not only provide the driver with braking, but also allow the front brake 22 and the rear brake 32 to perform braking action at the same time, in order to increase the stability of the locomotive braking deceleration, and The piston 12 in the diverter valve 10 can separate the first fluid and the second fluid, and make the front brake assembly 20 and the rear brake assembly 30 independent, which can effectively avoid the front brake assembly 20 and the rear brake The brake assembly 30 fails at the same time, thereby improving safety.

Claims (4)

An interlocking brake system with an anti-failure function includes: a diverter valve including a housing, a piston, and a reset member; a piston chamber is formed inside the housing; A pressurized flow path, a second pressurized flow path, and an active flow path, the first pressurized flow path is located on one side of the piston chamber, and the second pressurized flow path is disposed on the piston opposite to the active flow path. The axial ends of the chamber are arranged in the piston chamber of the casing so as to be axially movable and partition the piston chamber of the casing into a first chamber and a second chamber. The flow channel and the acting flow channel are respectively connected to the first container chamber, the second pressurized flow channel is connected to the second container chamber, and the reset member is disposed in the casing and is located in the first container chamber. The opposite two ends of the reset member are respectively abutted against the inner side of the casing and the piston, and the axial movement of the piston in the piston chamber can switch the communication or non-communication between the first pressurized flow channel and the first chamber. State; a front brake assembly including a front brake handle, at least one front brake A first front brake oil pipe, a second front brake oil pipe, and a first fluid, the first front brake oil pipe is connected to the front brake handle, and communicates with the first pressurized flow passage of the diverter valve, and the second front The brake oil pipe is connected to the front brake and communicates with the flow passage of the diverter valve. The first flow system is filled in the first front brake oil pipe, the second front brake oil pipe, the first pressurized flow passage, the first A chamber and the action flow path; and a rear brake assembly, which includes a rear brake handle, a rear brake, a rear brake oil circuit, a second fluid, and a foot brake pump, and the rear brake oil circuit is connected The rear brake handle and the rear brake are connected to a second pressurized flow passage of the diverter valve, and the second flow system is filled in the rear brake oil passage, the second pressurized flow passage, and the second container. The rear brake oil circuit includes a first rear brake oil pipe and a second rear brake oil pipe. The first rear brake oil pipe is connected to the rear brake handle and the foot brake pump. The second rear brake oil pipe is connected to the foot brake. Pump and the rear brake, and communicate with the Second pressurized flow path of the valve. The fail-safe interlocking brake system according to claim 1, wherein the foot brake pump has a pressurizing space and a foot pressurizing mechanism, the first rear brake oil pipe and the second rear brake oil pipe Connected to the pressurizing space, the foot pressurizing mechanism can selectively compress the pressurizing space. The fail-safe linked brake system according to claim 1 or 2, wherein the first fluid and the second fluid are brake fluid. The fail-safe interlocking brake system according to claim 1 or 2, wherein the reset member is a spring.