A hydraulic system capable of throwing snow

Abstract

The present invention discloses a hydraulic system capable of throwing snow, which belongs to the technical field of engineering machinery; the system comprises a snow throwing component, a hydraulic pump, a multi-way valve, an operating component, a control component and a hydraulic oil tank; the hydraulic oil tank is connected to the multi-way valve, the multi-way valve is connected to the operating component, the multi-way valve is connected to the snow throwing component through the control component; the snow throwing component comprises an auger motor, a fan motor, an angle adjustment cylinder and a steering motor; the hydraulic pump is connected to the control component through the multi-way valve, the multi-way valve is connected to the operating component, the multi-way valve is connected to the hydraulic oil tank, the auger motor, the fan motor, the angle adjustment cylinder and the steering motor are all connected to the control component; the present invention provides a hydraulic system capable of throwing snow, which controls the snow throwing operation by configuring a separate snow throwing control component, supplies snow throwing operation on demand, reduces the loss of hydraulic efficiency, and avoids impact on the hydraulic system.

Description

Technical Field

[0001] The invention relates to a hydraulic system capable of throwing snow, and belongs to the technical field of engineering machinery. Background Art

[0002] At present, loaders, skid loaders, backhoe loaders and other machinery used in engineering operations at home and abroad are equipped with a variety of equipment to meet different working conditions. Among them, snow throwers are one of the more common equipment, mostly used for snow removal equipment in cold areas in winter. However, snow throwers are generally controlled by ordinary valve blocks. When working, part of the pump flow is used to supply the snow thrower, and the excess flow flows back to the fuel tank through the overflow valve. The flow cannot be set according to the flow required by the snow thrower, resulting in a large efficiency loss and a large hydraulic shock. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a hydraulic system capable of throwing snow. By configuring a separate snow throwing control component to control the snow throwing operation, the snow throwing operation is provided on demand, reducing the loss of hydraulic efficiency and avoiding impact on the hydraulic system.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A hydraulic system capable of throwing snow, which includes a snow throwing component, a hydraulic pump, a multi-way valve, an operating component, a control component and a hydraulic oil tank, the hydraulic oil tank is connected to the multi-way valve, the multi-way valve is connected to the operating component, the multi-way valve is connected to the snow throwing component through the control component, the snow throwing component includes a auger motor, a fan motor, an angle adjustment cylinder and a steering motor, the hydraulic pump is connected to the control component through the multi-way valve, the multi-way valve is connected to the operating component, the multi-way valve is connected to the hydraulic oil tank, the auger motor, fan motor, angle adjustment cylinder and steering motor are all connected to the control component.

[0006] Furthermore, the A1 port of the multi-way valve is connected to the A port of the control assembly, and the B1 port of the multi-way valve is connected to the O port of the control assembly; the control assembly includes a first reversing valve, a second reversing valve and a flow control valve;

[0007] The angle adjustment cylinder is connected to the first reversing valve, and the steering motor is connected to the second reversing valve;

[0008] The inlet of the fan motor is connected to the C1 port of the control component, the outlet of the fan motor is connected to the C2 port of the control component, the inlet of the auger motor is connected to the C3 port of the control component, the outlet of the auger motor is connected to the C4 port of the control component, the A port of the control component is connected to the C1 port, the outlet of the fan motor is connected to the inlet of the auger motor, the outlet of the auger motor is connected to the first reversing valve, the outlet of the auger motor is connected to the second reversing valve through the flow control valve, and the first reversing valve is connected to the second reversing valve.

[0009] Furthermore, the control assembly further comprises a one-way valve, the oil inlet of the one-way valve is connected to the outlet of the fan motor via the C2 port of the control assembly, and the oil outlet of the one-way valve is connected to the inlet of the fan motor via the C1 port of the control assembly.

[0010] Furthermore, the angle adjustment cylinder is provided with a rodless chamber and a rod chamber, the rod chamber of the angle adjustment cylinder is connected to the C5 port of the control component, the rod chamber of the angle adjustment cylinder is connected to the C6 port of the control component, the first reversing valve is connected to the C5 of the control component, and the first reversing valve is connected to the C6 port of the control component.

[0011] Furthermore, the inlet of the steering motor is connected to the C7 port of the control component, the outlet of the steering motor is connected to the C8 port of the control component, the second reversing valve is connected to the C7 of the control component, and the second reversing valve is connected to the C8 port of the control component.

[0012] Furthermore, the control component also includes a throttle valve, the outlet of the auger motor is connected to the first reversing valve through the throttle valve, and the outlet of the auger motor is connected to the inlet of the throttle valve.

[0013] Furthermore, the right end signal control oil circuit of the flow control valve is connected to the outlet of the auger motor, and the left end signal control oil circuit of the flow control valve is connected to the outlet of the throttle valve.

[0014] Furthermore, the control component also includes a first overflow valve, and the outlet of the fan motor and the inlet of the auger motor are both connected to the O port of the control component through the first overflow valve.

[0015] Furthermore, the control component also includes a second overflow valve, the first reversing valve and the second reversing valve are also connected through the second overflow valve, and the second overflow valve, the flow control valve and the second reversing valve are all connected to the O port of the control component.

[0016] Furthermore, the first reversing valve and the second reversing valve are three-position six-way valves.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This technical solution adjusts the operation of the snow throwing assembly by separately setting up a control assembly, and can supply the hydraulic flow of each part of the snow throwing assembly on demand through the flow control valve, reversing valve, throttle valve, etc., thereby reducing power loss;

[0019] In this technical solution, the control component is equipped with a relief valve, a one-way valve, etc., which can eliminate the pressure shock during operation and realize the unloading function to ensure the safety and reliability of the system;

[0020] The present technical solution is provided with a one-way valve, which can enable the fan motor to stop slowly when the oil supply to the fan motor stops, avoiding the motor from stopping suddenly and causing damage to the motor due to excessive immediate stress, and can provide buffering and protect the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The diagram is a schematic diagram of a hydraulic system capable of throwing snow provided by an embodiment of the present invention.

[0022] Explanation of reference numbers: 1-hydraulic pump, 2-multi-way valve, 3-operating assembly, 4-control assembly, 5-hydraulic oil tank, 6-auger motor, 7-fan motor, 8-angle adjustment cylinder, 9-steering motor, 10-first reversing valve, 11-second reversing valve, 12-flow control valve, 13-check valve, 14-throttle valve, 15-first relief valve, 16-second relief valve. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] As shown in the accompanying drawings, a hydraulic system capable of throwing snow includes a snow throwing component, a hydraulic pump 1, a multi-way valve 2, an operating component 3, a control component 4 and a hydraulic oil tank 5. The hydraulic oil tank is connected to the multi-way valve, the multi-way valve is connected to the operating component, the multi-way valve is connected to the snow throwing component through the control component, the snow throwing component includes an auger motor 6, a fan motor 7, an angle adjustment cylinder 8 and a steering motor 9, the hydraulic pump is connected to the control component through the multi-way valve, the multi-way valve is connected to the operating component, the multi-way valve is connected to the hydraulic oil tank, the auger motor, the fan motor, the angle adjustment cylinder and the steering motor are all connected to the control component; the A1 port of the multi-way valve is connected to the A port of the control component, and the B1 port of the multi-way valve is connected to the O port of the control component; The control assembly includes a first reversing valve 10, a second reversing valve 11 and a flow control valve 12; the angle adjustment cylinder is connected to the first reversing valve, and the steering motor is connected to the second reversing valve; the inlet of the fan motor is connected to the C1 port of the control assembly, the outlet of the fan motor is connected to the C2 port of the control assembly, the inlet of the auger motor is connected to the C3 port of the control assembly, the outlet of the auger motor is connected to the C4 port of the control assembly, the A port of the control assembly is connected to the C1 port, the outlet of the fan motor is connected to the inlet of the auger motor, that is, the C2 port and the C3 port of the control assembly are connected, the outlet of the auger motor is connected to the first reversing valve, the outlet of the auger motor is connected to the second reversing valve through the flow control valve, and the first reversing valve is connected to the second reversing valve;

[0027] The operating components are the main operating components of engineering machinery, which can be lifting, hoisting, excavating, and bucket components.

[0028] The auger motor in the snow throwing assembly is a spiral feeding device that can deliver the snow rolls to the next component. The fan motor is a hydraulically driven motor that can blow out the snow. The angle adjustment cylinder can control the angle between the snow spray direction and the horizontal plane. The steering motor is a hydraulically driven motor that can control and adjust the snow throwing assembly's steering within the horizontal plane. The multi-way valve is used to control the distribution of oil in the hydraulic oil tank to each required component. The first reversing valve is a solenoid reversing valve used to control the extension and retraction of the angle adjustment cylinder. The second reversing valve is a solenoid reversing valve used to control the steering of the steering motor. The flow control valve is used to control the hydraulic oil flowing out of the auger motor.

[0029] When the operating component of the whole machine needs to work, start the handle or button corresponding to the operating component, and the hydraulic oil enters the P port of the multi-way valve through the outlet of the hydraulic pump, and then enters the corresponding working device of the operating component;

[0030] When the entire machine needs to throw snow, start the corresponding handle or button, and the hydraulic oil enters the P port of the multi-way valve through the outlet of the hydraulic pump, and then enters the A port of the control component from the A1 port of the multi-way valve, and then enters the fan motor and the auger motor to drive the snow thrower to work. The outlet of the auger motor is connected to the O port of the control component and returns to the hydraulic oil tank.

[0031] In one embodiment, the control assembly further includes a one-way valve 13, the oil inlet of the one-way valve is connected to the outlet of the fan motor via the C2 port of the control assembly, and the oil outlet of the one-way valve is connected to the inlet of the fan motor via the C1 port of the control assembly, that is, the C2 port is connected to the C1 port via the one-way valve;

[0032] The one-way valve can keep the hydraulic oil flowing in the fan motor for a certain period of time after the oil inlet of the fan motor stops, so that the fan motor can stop slowly, avoiding the motor from stopping suddenly and causing damage to the motor due to excessive stress. It can provide buffering and protect the motor.

[0033] More specifically, the angle adjustment cylinder is provided with a rodless chamber and a rod chamber, the rod chamber of the angle adjustment cylinder is connected to the C5 port of the control assembly, the rod chamber of the angle adjustment cylinder is connected to the C6 port of the control assembly, the first reversing valve is connected to the C5 port of the control assembly, and the first reversing valve is connected to the C6 port of the control assembly;

[0034] That is, the first reversing valve is connected to the angle adjustment cylinder to control the extension and retraction distance of the angle adjustment cylinder. By injecting hydraulic oil into the rodless chamber or the rod chamber respectively, the position of the cylinder piston rod can be easily adjusted, thereby adjusting the extension and retraction of the angle adjustment cylinder. The specific working principle is as follows:

[0035] The c of the first reversing valve is connected to the C5 port of the control component, and d is connected to the C6 port. When the Y end of the first reversing valve is energized: the first reversing valve is switched to the left position, at which time b and c are connected, and e and d are connected; when Y2 is energized: the first reversing valve is switched to the right position, at which time b and d are connected, and e and c are connected. Compared with the left position, b and e have exchanged connection positions, achieving the purpose of reverse control compared to the left position, and can conveniently control the extension and retraction of the angle adjustment cylinder, thereby controlling and adjusting the snow throwing angle of the snow throwing component relative to the horizontal plane.

[0036] Further, the inlet of the steering motor is connected to the C7 port of the control assembly, the outlet of the steering motor is connected to the C8 port of the control assembly, the second reversing valve is connected to the C7 port of the control assembly, and the second reversing valve is connected to the C8 port of the control assembly;

[0037] The g of the second reversing valve is connected to the C7 port of the control component, and m is connected to the C8 port. When Y3 is energized, the second reversing valve switches to the left position. At this time, f is connected to g, and n is connected to m. When Y2 is energized, the second reversing valve switches to the right position. At this time, f is connected to m, and n is connected to g. Compared with the left position, f and n exchange the connection positions, achieving the purpose of reverse control compared to the left position.

[0038] In one embodiment, the control assembly further includes a throttle valve 14, the outlet of the auger motor is connected to the first reversing valve via the throttle valve, and the outlet of the auger motor is connected to the inlet of the throttle valve, that is, the C4 port is connected to the first reversing valve via the throttle valve.

[0039] The right-end signal control oil circuit of the flow control valve is connected to the outlet of the auger motor, and the left-end signal control oil circuit of the flow control valve is connected to the outlet of the throttle valve; when the flow out of the auger motor outlet increases, the pressure difference at both ends of the flow control valve exceeds the set spring force, and the flow control valve switches to the right position, i and j are connected, changing the flow direction of the hydraulic oil to ensure the supply of flow to the angle adjustment cylinder and steering motor.

[0040] The control assembly also includes a first relief valve 15. The outlet of the fan motor and the inlet of the auger motor are both connected to the O port of the control assembly through the first relief valve, that is, C2 and C3 are connected to the O port of the control assembly through the first relief valve. The control assembly also includes a second relief valve 16. The first reversing valve and the second reversing valve are also connected through the second relief valve. The second relief valve, the flow control valve and the second reversing valve are all connected to the O port of the control assembly.

[0041] The first and second relief valves can protect the auger motor, steering motor, and angle adjustment cylinder respectively. When the load pressure of the three is too high and exceeds the preset safety value, overflow protection can be provided to reduce the pressure shock during operation and avoid component damage and safety risks.

[0042] The fan motor, auger motor, second relief valve, flow control valve and second reversing valve are all connected to the O port of the control component and can return to the hydraulic oil tank through the multi-way valve.

[0043] In one embodiment, the first reversing valve and the second reversing valve are three-position six-way valves, which can meet the oil circuit switching requirements of the present technical solution.

[0044] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic system capable of throwing snow, characterized in that: The snow throwing assembly comprises a snow throwing assembly, a hydraulic pump (1), a multi-way valve (2), an operating assembly (3), a control assembly (4) and a hydraulic oil tank (5), wherein the hydraulic oil tank is connected to the multi-way valve, the multi-way valve is connected to the operating assembly, the multi-way valve is connected to the snow throwing assembly via the control assembly, the snow throwing assembly comprises an auger motor (6), a fan motor (7), an angle adjustment cylinder (8) and a steering motor (9), the hydraulic pump is connected to the control assembly via the multi-way valve, the multi-way valve is connected to the hydraulic oil tank, and the auger motor, the fan motor, the angle adjustment cylinder and the steering motor are all connected to the control assembly; The A1 port of the multi-way valve is connected to the A port of the control component, and the B1 port of the multi-way valve is connected to the O port of the control component; the control component includes a first reversing valve (10), a second reversing valve (11) and a flow control valve (12); The angle adjustment cylinder is connected to the first reversing valve, and the steering motor is connected to the second reversing valve; The inlet of the fan motor is connected to the C1 port of the control assembly, the outlet of the fan motor is connected to the C2 port of the control assembly, the inlet of the auger motor is connected to the C3 port of the control assembly, the outlet of the auger motor is connected to the C4 port of the control assembly, the A port of the control assembly is connected to the C1 port, the outlet of the fan motor is connected to the inlet of the auger motor, the outlet of the auger motor is connected to the first reversing valve, the outlet of the auger motor is connected to the second reversing valve through the flow control valve, and the first reversing valve is connected to the second reversing valve; The control assembly further includes a throttle valve (14), wherein the outlet of the auger motor is connected to the first reversing valve via the throttle valve, and the outlet of the auger motor is connected to the inlet of the throttle valve; The right end signal control oil circuit of the flow control valve is connected to the outlet of the auger motor, and the left end signal control oil circuit of the flow control valve is connected to the outlet of the throttle valve.

2. A hydraulic system capable of throwing snow according to claim 1, characterized in that: The control assembly further comprises a one-way valve (13), the oil inlet of the one-way valve being connected to the outlet of the fan motor via the C2 port of the control assembly, and the oil outlet of the one-way valve being connected to the inlet of the fan motor via the C1 port of the control assembly.

3. The hydraulic system capable of throwing snow according to claim 1, characterized in that: The angle adjustment cylinder is provided with a rodless chamber and a rod chamber. The rod chamber of the angle adjustment cylinder is connected to the C5 port of the control component. The rod chamber of the angle adjustment cylinder is connected to the C6 port of the control component. The first reversing valve is connected to the C5 of the control component. The first reversing valve is connected to the C6 port of the control component.

4. The hydraulic system capable of throwing snow according to claim 1, characterized in that: The inlet of the steering motor is connected to the C7 port of the control component, the outlet of the steering motor is connected to the C8 port of the control component, the second reversing valve is connected to the C7 port of the control component, and the second reversing valve is connected to the C8 port of the control component.

5. The hydraulic system capable of throwing snow according to claim 1, characterized in that: The control component further comprises a first overflow valve (15), and the outlet of the fan motor and the inlet of the auger motor are both connected to the O port of the control component via the first overflow valve.

6. The hydraulic system capable of throwing snow according to claim 1, characterized in that: The control component further includes a second overflow valve (16), the first reversing valve and the second reversing valve are further connected via the second overflow valve, and the second overflow valve, the flow control valve and the second reversing valve are all connected to the O port of the control component.

7. The hydraulic system capable of throwing snow according to claim 1, characterized in that: The first reversing valve and the second reversing valve are three-position six-way valves.

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