Brake system for remotely driving loader

Abstract

The utility model relates to a brake system for remotely driving a loader, which comprises an air compressor, a drying tank, an air storage tank, an air brake valve, a proportional electromagnetic valve, a two-way check valve and a brake. The loader can be braked by operating the air brake valve in a cab, and the proportional electromagnetic valve can be remotely controlled to control compressed air in the air storage cylinder to enter the booster pump and push a piston rod in the booster pump, so that brake fluid in the booster pump enters a brake caliper to push a piston and a friction plate to press a brake disc, and braking is achieved. The two-way one-way valve ensures that when the air brake valve or the proportional electromagnetic valve is used for braking, the other way cannot affect the air brake valve or the proportional electromagnetic valve.

Description

Technical Field

[0001] The utility model relates to a braking system, more specifically a braking system for a remote driving loader. Background Art

[0002] When braking a traditional loader, the driver needs to step on the air brake valve, and the gas in the air reservoir enters the booster pump through the air brake valve, pushing the brake fluid in the booster pump into the brake caliper, pushing the piston and friction plate to press against the brake disc to achieve braking. Braking a traditional loader requires the driver to operate the air brake valve in the cab, and cannot be remotely controlled. Summary of the invention

[0003] The utility model aims to provide a braking system for a remote-driven loader, which can be connected in parallel with a proportional solenoid valve and a two-way check valve on a conventional loader braking system, so that the loader can brake by operating an air brake valve in a cab, and can also remotely control the proportional solenoid valve to control compressed air in an air reservoir to enter a booster pump, push a piston rod in the booster pump, and allow brake fluid in the booster pump to enter a brake caliper, push a piston and a friction plate to press a brake disc, so as to achieve braking; the two-way check valve ensures that when the air brake valve or the proportional solenoid valve is used for braking, the other one will not affect it.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A braking system for a remote-driven loader comprises an air compressor, a drying tank, an air storage tank, an air brake valve, a proportional solenoid valve, a two-way check valve and a brake, wherein the outlet of the air compressor is connected to the inlet of the drying tank, the outlet of the drying tank is connected to the inlet of the air storage tank, the outlet of the air storage tank is connected to one end of the proportional solenoid valve and one end of the air brake valve, the other end of the proportional solenoid valve is connected to the first port of the two-way check valve, the second port of the two-way check valve is connected to the other end of the air brake valve, and the third port of the two-way check valve is connected to the inlet of a booster pump.

[0006] In order to further achieve the purpose of the utility model, the following technical scheme can also be adopted: a proportional solenoid valve and a two-way check valve are connected in parallel to the traditional loader braking system, so that the loader can brake by operating the air brake valve in the cab, and can also remotely control the proportional solenoid valve to control the compressed air in the air reservoir to enter the booster pump, push the piston rod in the booster pump, and make the brake fluid in the booster pump enter the brake caliper, push the piston and friction plate to press the brake disc to achieve braking; the two-way check valve ensures that when the air brake valve or the proportional solenoid valve is used for braking, the other way will not affect it.

[0007] The two-way one-way valve is provided with a first air inlet of the two-way one-way valve, a second air inlet of the two-way one-way valve, and an air outlet of the two-way one-way valve; the proportional solenoid valve is provided with a proportional solenoid valve air outlet, a proportional solenoid valve exhaust port, and a proportional solenoid valve air inlet; the air brake valve is provided with an air brake valve air outlet, an air brake valve air inlet, and an air brake valve exhaust port; the outlet of the air storage tank is connected to the air inlet of the proportional solenoid valve and the air brake valve air inlet; the air outlet of the proportional solenoid valve is connected to the second air inlet of the two-way one-way valve; the first air inlet of the two-way one-way valve is connected to the air outlet of the air brake valve; and the air outlet of the two-way one-way valve is connected to the inlet of the booster pump.

[0008] A brake air pressure sensor is arranged on the two-way one-way valve.

[0009] A pressure gauge is installed on the gas tank, a detection end of the pressure gauge is connected to the interior of the gas tank, one side of the gas tank is connected to the safety valve, the bottom of the gas tank is connected to the drain valve, the inlet of the drain valve is connected to the interior of the gas tank, and the inlet of the safety valve is connected to the interior of the gas tank.

[0010] The advantages of the utility model are: the utility model connects a proportional solenoid valve and a two-way check valve in parallel to the traditional loader braking system, so that the loader can brake by operating the air brake valve in the cab, and can also remotely control the proportional solenoid valve to control the compressed air in the air reservoir to enter the booster pump, push the piston rod in the booster pump, and make the brake fluid in the booster pump enter the brake caliper, push the piston and friction plate to press the brake disc to achieve braking; the two-way check valve ensures that when the air brake valve or proportional solenoid valve is used for braking, the other one will not affect it. The remote control braking system is an important part of the loader's remote driving. This design connects a proportional solenoid valve in parallel on the basis of the existing braking system, so that the loader can brake the entire vehicle by operating the air brake valve in the cab, and can also brake the entire vehicle by remotely controlling the proportional solenoid valve, providing strong support for the loader to achieve remote driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of Part I;

[0014] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of Part II; Figure 4 for Figure 1Schematic diagram of the enlarged structure of Part III. DETAILED DESCRIPTION

[0015] The following is a description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0016] A braking system for a remotely driven loader, such as Figure 1-Figure 4 As shown, it includes an air compressor 5, a drying tank 4, an air storage tank 11, an air brake valve 9, a proportional solenoid valve 8, a two-way check valve 7, and a brake 1. The outlet of the air compressor 5 is connected to the inlet of the drying tank 4, the outlet of the drying tank 4 is connected to the inlet of the air storage tank 11, the outlet of the air storage tank 11 is connected to one end of the proportional solenoid valve 8 and one end of the air brake valve 9, the other end of the proportional solenoid valve 8 is connected to the first port of the two-way check valve 7, the second port of the two-way check valve 7 is connected to the other end of the air brake valve 9, and the third port of the two-way check valve 7 is connected to the inlet of the booster pump 3.

[0017] The utility model connects a proportional solenoid valve and a two-way check valve in parallel to the traditional loader braking system, so that the loader can brake by operating the air brake valve in the cab, and can also remotely control the proportional solenoid valve to control the compressed air in the air reservoir to enter the booster pump, push the piston rod in the booster pump, and make the brake fluid in the booster pump enter the brake caliper, push the piston and friction plate to press the brake disc to achieve braking; the two-way check valve ensures that when the air brake valve or proportional solenoid valve is used for braking, the other one will not affect it. The remote control braking system is an important part of the loader's remote driving. This design connects a proportional solenoid valve in parallel to the existing braking system, so that the loader can brake the entire vehicle by operating the air brake valve in the cab, and can also brake the entire vehicle by remotely controlling the proportional solenoid valve, providing strong support for the loader to achieve remote driving.

[0018] Material selection and feasibility analysis for specific implementation: The samples we actually made use the drawings in the specification as drawings, and are implemented according to the proportions and matching methods of the various components in the drawings. The connections described are common connection methods such as strong adhesive connection, welding, riveting, flange connection, and one-piece molding connection. In actual production, the corresponding connection method, thickness and strength of the connection point can be selected creatively according to the actual connection strength requirements. A proportional solenoid valve and a two-way check valve are connected in parallel to the braking system of the traditional loader. The first air inlet 011 of the two-way check valve is connected to the air brake valve outlet 221, and the second air inlet 012 of the two-way check valve is connected to the proportional solenoid valve outlet 121. The two-way check valve outlet 021 is connected to the front and rear booster pumps. The compressed air provided by the air compressor is filtered through an oil-water separator or a drying tank and stored in an air reservoir. When the air brake valve is used for braking in the cab, the brake pedal is pressed, and the air brake valve inlet 211 and the air brake valve outlet 221 are connected. The compressed air in the air reservoir is connected to the air brake valve outlet through the air brake valve inlet 211. The air inlet 221 of the air brake valve is connected to the first air inlet 011 of the two-way one-way valve, pushing the valve stem in the two-way one-way valve to move, blocking the air outlet 121 of the proportional solenoid valve, and entering the front and rear booster pumps through the air outlet 021 of the two-way one-way valve to push the brake fluid in the booster pumps into the brake caliper, pushing the piston and the friction plate to press against the brake disc to achieve braking; when the brake is released, the brake pedal is released, the air brake valve outlet 221 is connected to the air brake valve exhaust port 222, the brake fluid returns to the booster pump along the original route, and the compressed air in the booster pump is connected to the first air inlet 011 of the two-way one-way valve through the air outlet 021 of the two-way one-way valve, and then connected to the air brake valve outlet 2 21, and then connected to the air brake valve exhaust port 222, and discharged into the atmosphere through the air brake valve exhaust port 222; when it is necessary to remotely control the vehicle for braking, the proportional solenoid valve is controlled by switching the proportional solenoid valve to connect the proportional solenoid valve inlet 111 and the proportional solenoid valve outlet 121, and the compressed air in the air reservoir is connected to the proportional solenoid valve outlet 121 through the proportional solenoid valve inlet 111, and then enters the second air inlet 012 of the two-way one-way valve, pushing the valve stem in the two-way one-way valve to move, blocking the air brake valve inlet 211, and entering the front and rear booster pumps through the two-way one-way valve outlet 021 to push the brake fluid in the booster pumps into the brake caliper, pushing The moving piston and the friction plate are pressed against the brake disc to realize braking; when the brake is released, the proportional solenoid valve outlet 121 is connected to the proportional solenoid valve exhaust port 122, and the brake fluid returns to the booster pump by the original route. The compressed air in the booster pump is connected to the first air inlet 011 of the two-way one-way valve through the two-way one-way valve outlet 021, and then connected to the proportional solenoid valve outlet 121, and then connected to the proportional solenoid valve exhaust port 122 to be discharged into the atmosphere; in this system, the opening of the proportional solenoid valve is controlled by controlling the current passed into the proportional solenoid valve, thereby controlling the amount of air passing through the proportional solenoid valve, so that the vehicle can have different braking states under different conditions.To ensure safety, the system is equipped with multiple pressure sensors. The air cylinder is equipped with a pressure sensor to detect the air pressure in the air cylinder. Oil pressure sensors are installed at the front and rear booster pump outlets to detect the booster pump outlet oil pressure. An air pressure sensor is installed at the two-way one-way valve outlet 021 to detect the air pressure entering the booster pump during braking.

[0019] Embodiment 2:

[0020] A braking system for a remotely driven loader, such as Figure 1-Figure 4 As shown, it includes an air compressor 5, a drying tank 4, an air storage tank 11, an air brake valve 9, a proportional solenoid valve 8, a two-way check valve 7, and a brake 1. The outlet of the air compressor 5 is connected to the inlet of the drying tank 4, the outlet of the drying tank 4 is connected to the inlet of the air storage tank 11, the outlet of the air storage tank 11 is connected to one end of the proportional solenoid valve 8 and one end of the air brake valve 9, the other end of the proportional solenoid valve 8 is connected to the first port of the two-way check valve 7, the second port of the two-way check valve 7 is connected to the other end of the air brake valve 9, and the third port of the two-way check valve 7 is connected to the inlet of the booster pump 3. The two-way one-way valve 7 is provided with a first air inlet 011 of the two-way one-way valve, a second air inlet 012 of the two-way one-way valve, and an air outlet 021 of the two-way one-way valve; the proportional solenoid valve 8 is provided with a proportional solenoid valve air outlet 121, a proportional solenoid valve exhaust port 122, and a proportional solenoid valve air inlet 111; the air brake valve 9 is provided with an air brake valve air outlet 221, an air brake valve air inlet 211, and an air brake valve exhaust port 222; the outlet of the air storage tank 11 is connected to the proportional solenoid valve air inlet 111 and the air brake valve air inlet 211; the proportional solenoid valve air outlet 121 is connected to the second air inlet 012 of the two-way one-way valve; the first air inlet 011 of the two-way one-way valve is connected to the air brake valve air outlet 221; and the two-way one-way valve air outlet 021 is connected to the inlet of the booster pump 3.

[0021] The air brake valve 9 of the present invention can control the air brake valve outlet 221 to communicate with the air brake valve inlet 211 or the air brake valve exhaust port 222 through the pedal.

[0022] A braking system for a remotely driven loader, such as Figure 1-Figure 4 As shown, it includes an air compressor 5, a drying tank 4, an air storage tank 11, an air brake valve 9, a proportional solenoid valve 8, a two-way check valve 7, and a brake 1. The outlet of the air compressor 5 is connected to the inlet of the drying tank 4, the outlet of the drying tank 4 is connected to the inlet of the air storage tank 11, the outlet of the air storage tank 11 is connected to one end of the proportional solenoid valve 8 and one end of the air brake valve 9, the other end of the proportional solenoid valve 8 is connected to the first port of the two-way check valve 7, the second port of the two-way check valve 7 is connected to the other end of the air brake valve 9, and the third port of the two-way check valve 7 is connected to the inlet of the booster pump 3. The two-way check valve 7 is provided with a brake air pressure sensor 6.

[0023] The brake air pressure sensor 6 of the utility model can detect the air pressure inside the two-way one-way valve 7 , and the detection port of the brake air pressure sensor 6 is communicated with the inside of the two-way one-way valve 7 .

[0024] Embodiment 4:

[0025] A braking system for a remotely driven loader, such as Figure 1-Figure 4 As shown, it includes an air compressor 5, a drying tank 4, an air storage tank 11, an air brake valve 9, a proportional solenoid valve 8, a two-way check valve 7, and a brake 1. The outlet of the air compressor 5 is connected to the inlet of the drying tank 4, the outlet of the drying tank 4 is connected to the inlet of the air storage tank 11, the outlet of the air storage tank 11 is connected to one end of the proportional solenoid valve 8 and one end of the air brake valve 9, the other end of the proportional solenoid valve 8 is connected to the first port of the two-way check valve 7, the second port of the two-way check valve 7 is connected to the other end of the air brake valve 9, and the third port of the two-way check valve 7 is connected to the inlet of the booster pump 3. A pressure gauge 10 is installed on the air storage tank 11, the detection end of the pressure gauge 10 is connected to the inside of the air storage tank 11, one side of the air storage tank 11 is connected to the safety valve 12, the bottom of the air storage tank 11 is connected to the drain valve 13, the inlet of the drain valve 13 is connected to the inside of the air storage tank 11, and the inlet of the safety valve 12 is connected to the inside of the air storage tank 11.

[0026] The barometer 10 of the utility model can detect the internal air pressure of the air storage tank 11 .

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A braking system for a remote-driven loader, characterized in that: The invention comprises an air compressor (5), a drying tank (4), an air storage tank (11), an air brake valve (9), a proportional solenoid valve (8), a two-way check valve (7), and a brake (1), wherein the outlet of the air compressor (5) is connected to the inlet of the drying tank (4), the outlet of the drying tank (4) is connected to the inlet of the air storage tank (11), the outlet of the air storage tank (11) is connected to one end of the proportional solenoid valve (8) and one end of the air brake valve (9), the other end of the proportional solenoid valve (8) is connected to the first port of the two-way check valve (7), the second port of the two-way check valve (7) is connected to the other end of the air brake valve (9), and the third port of the two-way check valve (7) is connected to the inlet of the booster pump (3).

2. A braking system for a remote-driven loader according to claim 1, characterized in that: The two-way check valve (7) has a first air inlet (011), a second air inlet (012) and an air outlet (021) of the two-way check valve; the proportional solenoid valve (8) has a proportional solenoid valve air outlet (121), a proportional solenoid valve exhaust port (122) and a proportional solenoid valve air inlet (111); the air brake valve (9) has an air brake valve air outlet (221), an air brake valve air inlet (211) and an air brake valve exhaust port (222); the outlet of the air storage tank (11) is connected to the proportional solenoid valve air inlet (111) and the air brake valve air inlet (211); the proportional solenoid valve air outlet (121) is connected to the second air inlet (012) of the two-way check valve; the first air inlet (011) of the two-way check valve is connected to the air brake valve air outlet (221); and the two-way check valve air outlet (021) is connected to the inlet of the booster pump (3).

3. A braking system for a remote-driven loader according to claim 1, characterized in that: A brake air pressure sensor (6) is provided on the two-way one-way valve (7).

4. A braking system for a remote-driven loader according to claim 1, characterized in that: A pressure gauge (10) is installed on the gas storage tank (11); a detection end of the pressure gauge (10) is connected to the interior of the gas storage tank (11); one side of the gas storage tank (11) is connected to a safety valve (12); the bottom of the gas storage tank (11) is connected to a drain valve (13); an inlet of the drain valve (13) is connected to the interior of the gas storage tank (11); and an inlet of the safety valve (12) is connected to the interior of the gas storage tank (11).

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