KR101006234B1 - Auto brake apparatus of ladle car - Google Patents

Abstract

An auto brake device of a trolley according to the present invention includes: a brake disc supporting the wheel of the trolley and positioned at the end of the axle protruding outward of the bogie, being installed concentrically with the axle, and rotating together with the axle; A hydraulic generator installed in the axle bearing cover fixed to the bogie to cover the bearing supporting the axle, and generating hydraulic pressure by a hydraulic pump receiving the rotational force of the brake disc; An accumulator for accumulating the hydraulic pressure generated by the hydraulic pressure generating portion; A brake assembly fixed to the axle bearing cover and configured to brake the rotation of the brake disc by bringing the brake pad into close contact with the surface of the brake disc by driving a hydraulic cylinder that receives hydraulic pressure accumulated in the accumulator; The hydraulic valve is shielded from the mutual coupling of the carriages or when the carriages and locomotives are coupled to block the hydraulic pressure accumulated in the accumulator from being transferred to the hydraulic cylinders. And a valve control unit which opens the hydraulic valve so that the hydraulic pressure accumulated in the accumulator is transferred to the hydraulic cylinder when the locomotive is separated, and the brake pad is in close contact with the surface of the brake disc to brake the carriage.

Since the present invention receives the rotational force from the end of the axle is not affected by the eccentricity of the axle, there is an advantage that can smoothly transmit the rotational force of the axle to the hydraulic pump and generator even when the carrier cart moves the curved rail. In addition, the present invention, when the mutual coupling and separation of the driving vehicle or when the carriage and locomotive are coupled or separated, the hydraulic energy accumulated in the accumulator is supplied or blocked to the brake assembly by the interfering driving rod, so that the braking of the carriage is reduced. Because it is controlled automatically, even if the driver's indifference has the advantage that the carriage can be safely braked or moved.

The present invention is installed in the axle bearing cover of the bearing, the hydraulic generator, the brake assembly, the generator, etc. are located at the end of the axle that is not interfered when the carrier truck runs on the curved rail, and supports the axle and is fixed to the bogie. Since it is provided integrally with the axle, there is an advantage that the rotational force of the brake disc is smoothly transmitted to the hydraulic generator, generator, etc., even when the position of the axle changes due to the wear of the wheel.

Trolley, charter, brake, accumulator, hydraulic energy

Description

AUTO BRAKE APPARATUS FOR CARRYING TRUCK {AUTO BRAKE APPARATUS OF LADLE CAR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auto brake device for a trolley, and more particularly, to an auto brake device for a trolley that is towed by a locomotive to transport molten iron.

Generally, a trolley is a railroad vehicle moved along a rail and is towed by a locomotive. In particular, the molten iron in the steel mill blast furnace will be repaired and transported to the steel mill.

When such a trolley is towed by a locomotive, braking is performed using a pneumatic brake device using an air compressor of the locomotive, but when the vehicle is separated from the locomotive, the air compressor of the locomotive cannot be used, and it is braked by the absence of its own brake system. There was a difficulty.

Thus, the wheel is manually installed between the wheel and the rail of the transport cart to prevent the flow of the transport cart. However, when installing the wheel by hand, there was a problem that the accident of the musculoskeletal system, such as stenosis of the operator's hand, arm, waist, etc. due to the flow of the carriage cart.

In order to solve this problem, a method of braking the rotation of the wheel by mounting a brake shoe between the wheels and operating it by hydraulic pressure, without manual operation, has been used.

The driving of the hydraulic pump for the generation of hydraulic pressure is provided with a sprocket in the center of the axle on which the wheels are supported, and the rotational force of the axle is transmitted to the hydraulic pump by the chain caught in the sprocket. In addition, the rotational force of the axle is transmitted to the generator, and the electricity generated by the generator is stored in the battery, and then the motor is driven by the stored electricity so that the hydraulic pump can be driven so that the trolley has its own brake system. .

However, since the brake device of the carriage according to the prior art mounts a sprocket in the center of the axle and receives the rotational force of the axle by the chain, the axle eccentricity generated when the carriage runs on a curved rail is caused. There was a problem that the connection of the chain is loosened or further tightened, so that the rotational force of the axle is not properly transmitted.

As a result, the hydraulic pump and the generator does not operate properly, there is a problem that can not drive the brake device.

In addition, the brake device of the transport cart according to the prior art, because the driver has to artificially brake or loosen the transport cart when the transport truck and the locomotive are separated or combined, so that the transport cart without release the brake of the transport cart with the indifference of the driver When moving the brake device was a problem that is broken.

The present invention is to solve the problems of the prior art, an object of the present invention, even if the carriage moves the curved rail, the auto brake device of the carriage can smoothly transmit the rotational force of the axle to the hydraulic pump and generator To provide.

In addition, another object of the present invention is to provide an auto brake device of a transport trolley which can automatically catch or release the brake of the transport trolley when the transport trolley and the locomotive are separated or combined.

Auto brake device of the carriage of the present invention for achieving the above object is located at the end of the axle protruding outward of the bogie to support the wheel of the carriage and is installed concentric with the axle, and rotates with the axle A brake disc; A hydraulic generator installed in the axle bearing cover fixed to the bogie to cover the bearing supporting the axle, and generating hydraulic pressure by a hydraulic pump receiving the rotational force of the brake disc; An accumulator for accumulating the hydraulic pressure generated by the hydraulic pressure generating portion; A brake assembly fixed to the axle bearing cover and configured to brake the rotation of the brake disc by bringing the brake pad into close contact with the surface of the brake disc by driving a hydraulic cylinder that receives hydraulic pressure accumulated in the accumulator; The hydraulic valve is shielded when the carriage is coupled with the locomotive to prevent the hydraulic pressure accumulated in the accumulator from being transferred to the hydraulic cylinder, and the hydraulic valve is opened when the carriage is separated from the locomotive. And a valve control unit configured to allow the hydraulic pressure accumulated in the accumulator to be transferred to the hydraulic cylinder, and the brake pad is in close contact with the surface of the brake disc to brake the carriage.

The hydraulic generating unit has a tooth to form a tooth on the outer peripheral surface of the brake disk, the tooth is rotated by meshing with the teeth of the brake disk; It includes a hydraulic pump for generating a hydraulic pressure by receiving the rotational force of the gear to pump the fluid stored in the fluid tank.

A brake disc supporting the wheel and being installed concentrically with the axle at an end of the axle protruding outward of the bogie and rotating together with the axle; The brake disc is fixed to the bogie and is installed in the axle bearing cover covering the bearing supporting the axle, and the brake pad is brought into close contact with the surface of the brake disc by the operation of a hydraulic cylinder that receives the hydraulic pressure accumulated in the accumulator to rotate the brake disc. It includes a brake assembly for braking.

The valve control unit is slidably installed in the transport trolley, and consists of a driving rod that rotates the lever of the hydraulic valve while interfering with the locomotive when sliding.

This embodiment includes a manual control unit for manually controlling the supply of the hydraulic pressure accumulated in the accumulator to the brake unit; A generator for generating power by receiving the rotational force of the brake disc; A capacitor for storing electricity produced by the generator; A hydraulic indicator for receiving power from the capacitor and confirming accumulation of hydraulic pressure in the accumulator; A braking indicator is further provided to receive power from the capacitor and to check an operating state of the brake assembly.

Since the present invention receives the rotational force from the end of the axle is not affected by the eccentricity of the axle, there is an advantage that can smoothly transmit the rotational force of the axle to the hydraulic pump and generator even when the carrier cart moves the curved rail.

In addition, the present invention, when the carriage and the locomotive are coupled or separated, the hydraulic energy accumulated in the accumulator by the interfering drive rod is supplied to or blocked by the brake assembly, so that braking of the carriage is automatically controlled, so that the vehicle carries even the indifference of the driver. There is an advantage that the truck can be safely braked or moved.

On the other hand, the present invention is the axle bearing of the bearing, the hydraulic generating unit, the brake assembly, the generator, etc. are located at the end of the axle that is not interfered when the carrier truck runs on the curved rail, and supports the axle and is fixed to the bogie. Since the cover is integrally provided with the axle, the rotational force of the brake disc is smoothly transmitted to the hydraulic generator, the generator, etc., even when the position of the axle changes due to the wear of the wheel.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

1 to 4 show the structure and the hydraulic circuit diagram of the transport cart and the auto brake device according to the present invention.

Referring to FIG. 1, in the transport cart 10 according to the present embodiment, a vehicle body 11 is installed on the main bridge 12 and is positioned below the main bridge 12 to roll along a rail R. (13) is supported by the axle 15 in pairs. The two axles that are joined are connected by a bogie 14.

2 and 5, the auto brake device of the transport cart of the present embodiment is installed on the wheel 13, the hydraulic generating unit 30 for receiving the rotational force of the wheel to generate the hydraulic pressure by the hydraulic generating unit Accumulator 40 for accumulating the generated hydraulic pressure, the braking part 20 for braking the transport cart by using the hydraulic pressure accumulated in the accumulator, and a hydraulic valve 50 for controlling the supply of the accumulated hydraulic pressure of the accumulator in the braking part. And the main bridge 12 of the transport trolley 10 to control opening and closing of the hydraulic valve 50 when the transport trolley 10 is coupled or separated from each other, or when the transport trolley is coupled or separated from the locomotive. The valve control unit 60 is made up.

Referring to FIG. 3, the braking portion 20 is located at the end of the axle 15 protruding outward of the bogie 14 and in the axle bearing cover 16 covering the bearing supporting the axle in the bogie 14. A housing 21 to be fixed, a housing 21 to be fixed, a brake disc 31 which is located inside the housing and is installed concentrically with the axle at the end of the axle 15 and rotates together with the axle, and fixed to the housing. And a brake assembly (caliper) that brakes the rotation of the brake disc by bringing the brake pad 22 into close contact with the surface of the brake disc by driving the hydraulic cylinder that receives the hydraulic pressure accumulated in the accumulator.

The brake assembly is used in a vehicle by a general hydraulic brake system, a detailed description thereof will be omitted.

The hydraulic generator 30 is provided in the housing 21 of the brake unit to receive the rotational force from the brake disk 31 of the brake unit 20 to drive the hydraulic pump 33 to generate the hydraulic pressure.

That is, the tooth | gear is provided in the outer peripheral surface of the brake disc 31, and the tooth | gear 32 which meshes with the tooth | gear of the brake disc 31 and rotates is provided. The rotational force of the gear 32 is transmitted to the hydraulic pump 33 so that the fluid stored in the fluid tank 34 is pumped by the hydraulic pump 33 and accumulated in the accumulator 40 as hydraulic energy.

On the other hand, the brake assembly and the hydraulic generator 30 is fixed to the bogie 14 is installed in the axle bearing cover 16 of the bearing for supporting the axle, the reason for the wear of the wheel due to the movement of the transport cart 10 The wheels are trimmed for regeneration, which reduces the outer diameter of the wheels. Thus, the axle is moved to the lower side of the bogie to re-determine, which causes the up / down position of the axle to change. Accordingly, the housing 21 is installed in the axle bearing cover 16 so as to move together with the axle for intimate engagement between the brake disc 31 and the gear 32, and the brake assembly and the hydraulic generator 30 in the housing 21. ) Is installed.

In order to prevent the accumulator 40 from accumulating excessive hydraulic pressure, the accumulator 40 and the fluid tank 34 are connected to the fourth flow passage 71, and the fourth flow passage 71 is fixed to the accumulator 40. A maximum valve 80 is provided to bypass the fluid to the fluid tank 34 in the case where hydraulic pressure above the pressure is accumulated.

The hydraulic valve 50 is provided with a pair of 1st, 2nd hydraulic valves 50a and 50b, respectively, and consists of a three-way valve.

Meanwhile, as shown in FIGS. 3 and 4, the accumulator 40, the first and second hydraulic valves 50a and 50b, the hydraulic pump 33, and the braking unit 20 mentioned above. The brake assembly is connected by a flow path through which fluid is conveyed.

That is, the accumulator 40 and the first hydraulic valve 50a have a first flow passage 72, and the first and second hydraulic valves 50a, 50b have a sixth flow passage 76 and a second hydraulic valve 50b. And the brake assemblies of the brake unit 20 are connected by the second flow channel 73.

In the connected state, when the first and second hydraulic valves 50a and 50b are released from the interference by the valve control unit 60, the first channel 72, the sixth channel 76, and the second channel The tube 73 is in communication. At this time, the fluid in the accumulator 40 passes through the first and second hydraulic valves 50a and 50b to the brake assembly of the brake unit 20 and the transport cart is braked.

In addition, an auxiliary accumulator 41 is provided on the second flow path tube 73 in consideration of fine leakage of the fluid supplied to the brake assembly of the brake unit 20 due to the long-term braking of the transport cart.

Meanwhile, the first and second hydraulic valves 50a and 50b and the fluid tank 34 are connected by separate third flow pipes 74. This is because when the first and second hydraulic valves 50a and 50b are interfered by the valve control unit 60, the fluid that is transferred to the brake assembly of the brake unit 20 by communicating the second channel pipe and the third channel pipe is fluid. It is to be able to return to the tank (34). As a result, the transport cart is released.

The valve control unit 60 protrudes on the front surface of the main bridge 12 of the transport cart 10 and is installed to be slidable in the longitudinal direction of the main bridge 12 to interfere with the first and second hydraulic valves 50a and 50b. It consists of a pair of drive rod 61 and the elastic member 62 to make the sliding of the drive rod by the elastic.

The driving rod 61 is located at both front sides of the main bridge 12.

In close contact with the main bridge 12 and the locomotive, the driving rod 61 slides to interfere with the first and second hydraulic valves 50a and 50b. When the main bridge 12 and the locomotive are spaced apart, the driving rod 61 is slid in the reverse direction by the elastic member 62 so that the first and second hydraulic valves 50a and 50b are released from the driving rod 61. do.

On the other hand, having a pair of hydraulic valve 50 and the drive rod 61, the front surface of the main bridge 12 is not in close contact with the locomotive when the transport cart 10 moves the curved rail (R) One side can be spaced apart. At this time, the interference of the driving rod 61 is released to the hydraulic valve 50 at such a space, and the fluid is transferred to the brake assembly of the brake unit 20 to prevent the carriage cart 10 from being braked while moving. will be.

That is, the braking unit 20 only when the front surface of the main bridge 12 is completely separated from the locomotive, that is, only when the interference of the driving rod 61 is released from the first and second hydraulic valves 50a and 50b. The fluid is delivered to the brake assembly of the to carry out the braking of the carriage 10.

On the other hand, as a valve control unit, not only the driving rod, but also the coupling and separation of the locomotive and the transport trolley by using a separate detection means (limit switch, distance measuring infrared sensor, etc.), by the received control unit Hydraulic valves can also be controlled. At this time, the hydraulic valve is driven to the solenoid.

On the other hand, the present embodiment is a manual control unit 90 that can manually transmit the hydraulic pressure accumulated in the accumulator 40 to the brake assembly of the brake unit 20 in a state in which the transport cart 10 is spaced apart from the locomotive It may be further provided.

The manual control unit 90 is a manual valve 90 which is a three-way valve installed on the first flow passage 72 connecting the accumulator 40 and the first hydraulic valve 50a and controlling the transfer of the fluid by manual operation. ') In addition, the manual valve 90 ′ is separately connected to the third channel 74 by the fifth channel 75. This interrupts the transfer of the fluid to the first hydraulic valve 50a by manual operation, and the fluid transferred to the brake assembly of the brake unit 20 is returned to the fluid tank 34 through the third flow channel 74. I would have to.

That is, in the state in which the transport trolley 10 is spaced apart from the locomotive, the first and second hydraulic valves 50a and 50b are released from the driving rod 61 so that the first flow path 72 and the sixth flow path ( 76) and the second flow path tube 73 is in communication with each other, and the fluid transferred to the brake assembly of the brake unit 20 is transferred to the second flow path tube 73, the sixth flow path pipe 76, and the first flow path pipe. It is conveyed along 72, and is returned to the fluid tank 34 through the 3rd flow path 74 by the manual valve 90 '.

On the other hand, it may further include a generator for generating power using the rotational force of the brake disk 31 that rotates with the axle 15, and a capacitor for storing power generated by the generator. The generator includes a gear that is rotated by being engaged with a tooth formed on the outer circumferential surface of the brake disc, and the generator can be driven by the rotational force of the gear. It is also possible to install the generator on the coaxial axis of the brake disc to drive the generator using the rotational force of the brake disc immediately.

And, by being driven using the power of the capacitor, the accumulator 40 may further include a hydraulic indicator for checking the hydraulic state accumulated in the accumulator 40, and a braking indicator for checking whether or not the braking of the transport cart. Meanwhile, reference numeral 100, which is not described in FIG. 2, is a check valve.

Hereinafter, the operation and effects of the present embodiment configured as described above will be described.

When the transport trolley 10 is coupled to the locomotive and moved, the driving rod 61 slides in close contact with the locomotive to interfere with the first and second hydraulic valves 50a and 50b. At this time, the first hydraulic valve 50a communicates with the sixth channel 76 and the third channel 74, and the second hydraulic valve 50b is connected with the second channel 73 and the third channel. The tube 74 is communicated.

Accordingly, the fluid supplied to the brake assembly of the brake unit 20 is returned to the fluid tank 34 through the second flow path 73 and the third flow path 74, so that the braking of the transport cart 10 is released. do. Therefore, braking is not applied when the carriage 10 is towed by the locomotive.

On the other hand, the wheel 13 and the axle 15 are rotated by the movement of the transport cart 10. At this time, the brake disc 31 and the teeth 32 engaged thereto are rotated by the rotation of the axle 15. The hydraulic pump 33 is driven by the rotation of the gear 32. Accordingly, the fluid in the fluid tank 34 is pumped and accumulated at a constant pressure in the accumulator 40. The driving of the hydraulic pump 33 is continued while the carriage 10 is moved.

When the fluid stored in the accumulator 40 becomes higher than a predetermined pressure by the continuous driving of the hydraulic pump 10, the fluid stored in the accumulator 40 by the maximum valve 80 is bypassed to the fluid tank 34.

On the other hand, when the locomotive and the transport cart 10 are separated, the driving rod 61 is slid by the elastic member 62 to release the interference of the first and second hydraulic valves 50a and 50b. At this time, the first and second hydraulic valves 50a and 50b communicate with the first flow passage 72, the sixth flow passage 76, and the second flow passage 73.

Accordingly, the fluid stored in the accumulator 40 is transferred to the brake assembly of the brake unit 20 via the first flow path 72, the sixth flow path 76, and the second flow path 73 in communication with each other. The bogie 10 is braked.

On the other hand, when the locomotive and the transport cart 10 are coupled again, the driving rod 61 is slid to interfere with the first and second hydraulic valves 50a and 50b, and the braking unit 20 is operated through the above-described process. As the fluid supplied to the brake assembly returns to the fluid tank 34, the carriage 10 is released from braking.

As such, the present embodiment automatically controls the braking of the transport cart 10 when the transport cart 10 is coupled to or separated from the locomotive.

On the other hand, the braking of the transport trolley 10 can be controlled by the operation of the manual valve 90 'with the transport trolley 10 separated from the locomotive.

That is, since the driving rod 61 does not interfere with the first and second hydraulic valves 50a and 50b in a state in which the transport trolley 10 is separated from the locomotive, the first and sixth oil pipes 72 and 6 ( 76), the second flow channel 73 is in communication, and the fluid of the accumulator 40 is transferred.

At this time, the transfer of the fluid passing through the first flow path tube 72 is blocked by the manual valve 90 ', and the first flow path tube 72 is communicated with the third flow path tube 74. Then, the fluid supplied to the brake assembly of the brake unit 20 is the second flow path 73, the second hydraulic valve 50b, the sixth flow pipe 76, the first hydraulic valve 50a, the first flow path It returns to the fluid tank 34 via the pipe 72, the manual valve 90 ', and the 3rd flow path pipe 74. Thus, the braking of the transport trolley 10 is released.

On the other hand, when the manual valve 90 'is reworked so that the accumulator 40 and the first hydraulic valve 50a communicate with each other by the first channel pipe 72, the fluid of the accumulator 40 flows through the first channel pipe ( 72, the sixth flow path 76, the second flow path (73) is transferred to the brake assembly of the brake unit 20, the transport cart 10 is braked.

In this way, the braking control of the transport trolley 10 is enabled manually by the state in which the transport trolley 10 is separated from the locomotive.

The embodiments of the present invention described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

1 is a view showing a transport cart equipped with an auto brake device of the transport cart according to the present invention;

2 is a hydraulic circuit diagram of the auto brake device of the transport cart of FIG.

3 is a view schematically showing a structure with a hydraulic circuit in the auto brake device of the transport cart of FIG.

4 is a view schematically illustrating a state in which a brake unit is not driven in the auto brake device of the transport cart of FIG. 1;

FIG. 5 is a view schematically illustrating a state in which a brake unit is driven in an auto brake device of the transport cart of FIG. 1; FIG.

<Description of Symbols for Main Parts of Drawings>

10: carrier cart 20: braking part

30: hydraulic generator 40: accumulator

50: hydraulic valve 60: valve control unit

80: maximum valve 90: manual control unit

Claims (7)

delete delete A hydraulic pressure generating unit for generating hydraulic pressure by a hydraulic pump receiving the rotational force of the wheel of the transport cart; An accumulator for accumulating the hydraulic pressure generated by the hydraulic pressure generating portion; A braking unit for braking the transport cart using the hydraulic pressure accumulated in the accumulator; A hydraulic valve for controlling the hydraulic pressure accumulated by the accumulator to be supplied to the brake unit; When the mutual coupling of the carriage or the carriage and the locomotive are coupled, the hydraulic valve is shielded to prevent the hydraulic pressure accumulated in the accumulator from being transferred to the brake unit, and the mutual separation of the carriage or the carriage And a valve control unit which opens the hydraulic valve so that the hydraulic pressure accumulated in the accumulator is transferred to the brake unit when the locomotive is separated, so that the transport cart is braked. The valve control unit is slidably installed in the transport cart, the auto brake device of the transport cart, characterized in that consisting of a drive rod for rotating the lever of the hydraulic valve while sliding interfering with the locomotive. The method of claim 3, wherein The braking part A brake disc supporting the wheel and installed concentrically with the axle at an end of the axle protruding outward of the bogie and rotating together with the axle; The brake disc is fixed to the bogie and is installed in the axle bearing cover covering the bearing supporting the axle, and the brake pad is brought into close contact with the surface of the brake disc by the operation of a hydraulic cylinder that receives the hydraulic pressure accumulated in the accumulator to rotate the brake disc. Auto brake device of the carriage cart, characterized in that it comprises a brake assembly for braking. delete The method of claim 3, wherein And a manual control unit for manually controlling the supply of the hydraulic pressure accumulated in the accumulator to the braking unit. The method of claim 6, A generator for generating power by receiving the rotational force of the brake disc; A capacitor for storing electricity produced by the generator; A hydraulic indicator for receiving power from the capacitor and confirming accumulation of hydraulic pressure in the accumulator; Auto brake device of the transport cart, characterized in that the braking indicator for receiving power from the capacitor, the operation state of the brake assembly is further provided.

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