阅读说明：本技术 除冰车的液压系统以及除冰车 (Hydraulic system of deicing vehicle and deicing vehicle ) 是由 卿丽纯 郭方云 李红术 徐亮 陈国平 于 2020-04-29 设计创作，主要内容包括：本申请公开了一种除冰车的液压系统以及除冰车,包括主泵组、控制阀组、用于带动鼓风机转动的鼓风机马达、用于带动燃油泵转动的燃油泵马达、用于带动除冰泵转动的除冰泵马达以及用于带动防冰泵转动的防冰泵马达；所述主泵组的第一端口通过所述控制阀组分别连接所述鼓风机马达、所述燃油泵马达、所述除冰泵马达以及所述防冰泵马达的进油端；所述主泵组的第二端口分别连通所述鼓风机马达、所述燃油泵马达、所述除冰泵马达以及所述防冰泵马达的出油端；所述主泵组用于向所述鼓风机马达、所述燃油泵马达、所述除冰泵马达以及所述防冰泵马达提供液压动力。本申请的除冰车的液压系统以及除冰车,具有结构精简的优点。(The application discloses a hydraulic system of an deicing vehicle and the deicing vehicle, which comprise a main pump set, a control valve set, a blower motor for driving a blower to rotate, a fuel pump motor for driving a fuel pump to rotate, a deicing pump motor for driving a deicing pump to rotate and an anti-icing pump motor for driving an anti-icing pump to rotate; the first port of the main pump group is respectively connected with the air blower motor, the fuel pump motor, the deicing pump motor and the oil inlet end of the anti-icing pump motor through the control valve group; the second port of the main pump group is respectively communicated with the oil outlet ends of the blower motor, the fuel pump motor, the deicing pump motor and the anti-icing pump motor; the main pump group is used for providing hydraulic power for the blower motor, the fuel pump motor, the deicing pump motor and the anti-icing pump motor. The application discloses deicing vehicle's hydraulic system and deicing vehicle has the advantage that the structure is retrencied.)

1. The hydraulic system of the deicing vehicle is characterized by comprising a main pump set (1), a control valve set (2), a blower motor (31) for driving a blower to rotate, a fuel pump motor (32) for driving a fuel pump to rotate, a deicing pump motor (33) for driving a deicing pump to rotate and an anti-icing pump motor (34) for driving an anti-icing pump to rotate;

the first port (11) of the main pump group (1) is respectively connected with the oil inlet ends of the blower motor (31), the fuel pump motor (32), the deicing pump motor (33) and the anti-icing pump motor (34) through the control valve group (2);

the second port (12) of the main pump group (1) is communicated with the oil outlet ends of the blower motor (31), the fuel pump motor (32), the deicing pump motor (33) and the anti-icing pump motor (34) respectively;

the main pump group (1) is used for providing hydraulic power for the blower motor (31), the fuel pump motor (32), the de-icing pump motor (33) and the anti-icing pump motor (34).

2. The hydraulic system of claim 1, wherein: the blower motor (31) is a hydraulic pump; and/or the fuel pump motor (32) is a hydraulic pump; and/or the de-icing pump motor (33) is a hydraulic pump; and/or the anti-icing pump motor (34) is a hydraulic pump.

3. The hydraulic system of claim 1, wherein: the control valve group (2) comprises a speed regulating valve (21), and the oil inlet end of the blower motor (31) is connected with the first port (11) of the main pump group (1) through the speed regulating valve (21).

4. The hydraulic system of claim 1, wherein: the control valve group (2) comprises a first adjustable throttle valve (23) and a first control valve (22), the oil inlet end of the fuel pump motor (32) is communicated with the first adjustable throttle valve (23), and the first adjustable throttle valve (23) is connected with a first port (11) of the main pump group (1) through the first control valve (22); when the first control valve (22) is in a first working position, a first adjustable throttle valve (23) is communicated with a first port (11) of the main pump group (1); when the first control valve (22) is in the second working position, the oil path flowing to the first port (11) of the main pump group (1) of the first adjustable throttle valve (23) is communicated, and the oil path flowing to the first adjustable throttle valve (23) of the first port (11) of the main pump group (1) is cut off.

5. The hydraulic system of claim 1, wherein: the control valve group (2) comprises a second adjustable throttling valve (24) and a second control valve (25), the oil inlet end of the deicing pump motor (33) is communicated with the second adjustable throttling valve (24), and the second adjustable throttling valve (24) is connected with the first port (11) of the main pump group (1) through the second control valve (25); when the second control valve (25) is in a third working position, a second adjustable throttle valve (24) is communicated with the first port (11) of the main pump group (1); when the second control valve (25) is in a fourth working position, the oil path flowing to the first port (11) of the main pump group (1) by the second adjustable throttle valve (24) is communicated, and the oil path flowing to the second adjustable throttle valve (24) by the first port (11) of the main pump group (1) is cut off.

6. The hydraulic system of claim 5, wherein: the hydraulic system comprises a non-return valve (35); the oil inlet side of the one-way valve (35) is communicated with the second port (12) of the main pump group (1), and the oil outlet side of the one-way valve (35) is communicated with the second adjustable throttling valve (24).

7. The hydraulic system of claim 1, wherein: the control valve group (2) comprises a third adjustable throttle valve (26) and a third control valve (27), the oil inlet end of the anti-icing pump motor (34) is communicated with the third adjustable throttle valve (26), and the third adjustable throttle valve (26) is connected with the first port (11) of the main pump group (1) through the third control valve (27); when the third control valve (27) is in a fifth working position, a third adjustable throttle valve (26) is in communication with the first port (11) of the main pump group (1); when the third control valve (27) is in a sixth working position, the oil path from the third adjustable throttle valve (26) to the first port (11) of the main pump group (1) is communicated, and the oil path from the first port (11) of the main pump group (1) to the third adjustable throttle valve (26) is cut off.

8. The hydraulic system of claim 1, wherein: the hydraulic system comprises an oil return path (5) and an oil return filter (51) arranged on the oil return path (5), one end of the oil return path (5) is communicated with a second port (12) of the main pump set (1), and the other end of the oil return path (5) is communicated with the air blower motor (31), the fuel pump motor (32), the deicing pump motor (33) and the oil outlet end of the anti-icing pump motor (34) respectively.

9. The hydraulic system of claim 1, wherein: the hydraulic system comprises an emergency pump (6) and a hydraulic unit (8);

the hydraulic unit (8) comprises an execution component (81) and a fourth control valve (82) for distributing oil passages of the execution component (81);

the main pump group (1) comprises a first main pump (13) and a motive power mechanism (14), the first port (11) and the second port (12) are respectively ports, provided for feeding hydraulic oil into and out of the first main pump (13), and the motive power mechanism (14) is used for driving the first main pump (13) and the emergency pump (6) to rotate;

the emergency pump (6) is used for providing hydraulic oil to the fourth control valve (82) as power of the executing component (81).

10. The utility model provides an deicing vehicle which characterized in that: the deicing vehicle is applied with the hydraulic system as claimed in any one of claims 1 to 9, and comprises a vehicle body, a heater (9) arranged on the vehicle body, a deicing fluid tank and an anti-icing fluid tank; the heater (9) comprises a blower (91), a fuel pump, a deicing pump and an anti-icing pump; the blower motor (31) drives the blower (91) to rotate so as to blow air into the heater; the fuel pump motor (32) drives the fuel pump to rotate so as to spray fuel into the heater (9); the deicing pump motor (33) drives the deicing pump to rotate so as to pump the liquid in the deicing liquid tank into the heater for heating; the anti-icing pump motor (34) drives the anti-icing pump to rotate so as to pump the liquid in the anti-icing liquid tank into the heater for heating.

Technical Field

The application relates to the field of airplane deicing vehicles, in particular to a hydraulic system of an deicing vehicle and the deicing vehicle.

Background

Under the condition of icing, ice, snow and frost directly affect the running safety of the airplane, so that the outer surface of the airplane becomes rough, the weight of the airplane is increased, the moving range of an airplane control surface is limited, instrument errors are caused, the airplane is further stalled to be increased and is abnormally raised instantly in serious cases, the flight performance of the airplane is greatly reduced, particularly when the airplane takes off and rises, the flight attitude is difficult to control, and air crash is caused seriously. Therefore, in the prior art, the deicing vehicle is usually arranged to work on the airplane to remove frost and snow on the surface of the airplane.

In the process of deicing vehicle operation, on one hand, the deicing fluid and the anti-icing fluid are heated to a certain temperature from the ambient temperature through the heater, on the other hand, the arm support is lifted through the hydraulic system while the vehicle is running. Therefore, the system of the deicing vehicle integrates hydraulic pressure and electricity, the pipeline structure is complex, the system of the deicing vehicle is complex, and in addition, the electric equipment enables the deicing vehicle to be matched with a power generation device and occupies the capacity of the deicing vehicle.

Disclosure of Invention

In view of this, the present application is directed to a hydraulic system of an ice-removing vehicle with a simplified structure and an ice-removing vehicle.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

the hydraulic system of the deicing vehicle comprises a main pump set, a control valve set, a blower motor for driving a blower to rotate, a fuel pump motor for driving a fuel pump to rotate, a deicing pump motor for driving a deicing pump to rotate and an anti-icing pump motor for driving an anti-icing pump to rotate; the first port of the main pump group is respectively connected with the air blower motor, the fuel pump motor, the deicing pump motor and the oil inlet end of the anti-icing pump motor through the control valve group; the second port of the main pump group is respectively communicated with the oil outlet ends of the blower motor, the fuel pump motor, the deicing pump motor and the anti-icing pump motor; the main pump group is used for providing hydraulic power for the blower motor, the fuel pump motor, the deicing pump motor and the anti-icing pump motor.

Further, the blower motor is a hydraulic pump; and/or, the fuel pump motor is a hydraulic pump; and/or the de-icing pump motor is a hydraulic pump; and/or the anti-icing pump motor is a hydraulic pump.

Furthermore, the control valve group comprises a speed regulating valve, and the oil inlet end of the blower motor is connected with the first port of the main pump group through the speed regulating valve.

Furthermore, the control valve group comprises a first adjustable throttle valve and a first control valve, the oil inlet end of the fuel pump motor is communicated with the first adjustable throttle valve, and the first adjustable throttle valve is connected with the first port of the main pump group through the first control valve; when the first control valve is at a first working position, a first adjustable throttle valve is communicated with a first port of the main pump group; when the first control valve is located at a second working position, the oil path of the first adjustable throttling valve flowing to the first port of the main pump set is communicated, and the oil path of the first adjustable throttling valve flowing to the first port of the main pump set is cut off.

Furthermore, the control valve group comprises a second adjustable throttle valve and a second control valve, the oil inlet end of the motor of the deicing pump is communicated with the second adjustable throttle valve, and the second adjustable throttle valve is connected with the first port of the main pump group through the second control valve; when the second control valve is in a third working position, the second adjustable throttle valve is communicated with the first port of the main pump group; when the second control valve is located at a fourth working position, the oil way of the second adjustable throttle valve flowing to the first port of the main pump group is communicated, and the oil way of the first port of the main pump group flowing to the second adjustable throttle valve is cut off.

Further, the hydraulic system includes a check valve; and the oil inlet side of the one-way valve is communicated with a second port of the main pump group, and the oil outlet side of the one-way valve is communicated with the second adjustable throttling valve.

Furthermore, the control valve group comprises a third adjustable throttle valve and a third control valve, the oil inlet end of the anti-icing pump motor is communicated with the third adjustable throttle valve, and the third adjustable throttle valve is connected with the first port of the main pump group through the third control valve; when the third control valve is in a fifth working position, the third adjustable throttle valve is communicated with the first port of the main pump group; when the third control valve is located at a sixth working position, the oil way of the third adjustable throttle valve flowing to the first port of the main pump group is communicated, and the oil way of the first port of the main pump group flowing to the third adjustable throttle valve is cut off.

Furthermore, the hydraulic system comprises an oil return path and an oil return filter arranged on the oil return path, one end of the oil return path is communicated with the second port of the main pump set, and the other end of the oil return path is communicated with the oil outlet ends of the air blower motor, the fuel pump motor, the deicing pump motor and the anti-icing pump motor respectively.

Further, the hydraulic system comprises an emergency pump and a hydraulic unit; the hydraulic unit comprises an execution component and a fourth control valve used for distributing an oil path of the execution component; the main pump set comprises a first main pump and a motive power mechanism, the first port and the second port are respectively ports for feeding and discharging hydraulic oil of the first main pump, and the motive power mechanism is used for driving the first main pump and the emergency pump to rotate; the emergency pump is used for providing hydraulic oil to the fourth control valve to serve as power of the executing component.

The deicing vehicle adopts the hydraulic system and comprises a vehicle body, a heater, a deicing fluid tank and an anti-icing fluid tank, wherein the heater, the deicing fluid tank and the anti-icing fluid tank are arranged on the vehicle body; the heater comprises a blower, a fuel pump, a deicing pump and an anti-icing pump; the blower motor drives the blower to rotate so as to blow air into the heater; the fuel pump motor drives the fuel pump to rotate so as to spray fuel into the heater; the deicing pump motor drives the deicing pump to rotate so as to pump the liquid in the deicing liquid tank into the heater for heating; the anti-icing pump motor drives the anti-icing pump to rotate so as to pump the liquid in the anti-icing liquid tank into the heater for heating.

The hydraulic system of the deicing vehicle and the deicing vehicle provide hydraulic power for the blower motor, the fuel pump motor, the deicing pump motor and the anti-icing pump motor through the main pump group, so that the corresponding blower, the fuel pump, the deicing pump, the anti-icing pump and the like are driven, the heating function of the burner can be completed without adopting motor driving, an electric part is omitted, and the structure is simplified.

Drawings

FIG. 1 is a schematic structural view of a component heater according to an embodiment of the present application, in which a fuel pump, a deicing pump, and an anti-icing pump are omitted;

FIG. 2 is a schematic illustration of a hydraulic system according to an embodiment of the present application;

FIG. 3 is a schematic illustration of a hydraulic system according to another embodiment of the present application.

Detailed Description

It should be noted that, in the case of conflict, the technical features in the examples and examples of the present application may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the present application and should not be construed as an improper limitation of the present application.

In the description of the embodiments of the present application, the "up", "down", "left", "right", "front", "back" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, it is to be understood that these orientation terms are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present application.

An ice removing vehicle comprises a vehicle body (not shown), a heater 9 arranged on the vehicle body, an ice removing liquid tank (not shown) arranged on the vehicle body and an ice preventing liquid tank (not shown) arranged on the vehicle body. The heater 9 includes a blower 91, a fuel pump, a deicing pump, and an anti-icing pump; deicing fluid is stored in the deicing fluid box, and anti-icing fluid is stored in the anti-icing fluid box.

The deicing vehicle adopts a hydraulic system to control the performance of various functions. As shown in fig. 1 to 3, the hydraulic system includes a main pump group 1, a control valve group 2, a blower motor 31 for rotating a blower 91, a fuel pump motor 32 for rotating a fuel pump, a deicing pump motor 33 for rotating a deicing pump, and an anti-icing pump motor 34 for rotating an anti-icing pump.

The heater 9 is used for heating the deicing fluid and the anti-icing fluid.

Specifically, the heater may further include a furnace body 92, a coil 93, a plurality of burners 94, and an igniter 95; the coil 93 is arranged in the furnace body 92, two ends of the coil 93 are respectively communicated with the outside of the furnace body 92, and liquid to be heated flows through the coil 93;

when the deicing fluid needs to be heated, the deicing pump motor 33 drives the deicing pump to rotate so as to pump the fluid in the deicing fluid tank into the heater for heating; when the anti-icing fluid needs to be heated, the anti-icing pump motor 34 can drive the anti-icing pump to rotate so as to pump the liquid in the anti-icing fluid tank into the heater for heating, generally, the anti-icing fluid or the anti-icing fluid is sent into the coil pipe 93 for circulation, and the mixture of air and fuel oil is ignited in the furnace body 92 so as to heat the liquid flowing into the heater; the liquid may be water, anti-icing liquid or de-icing liquid as desired.

The igniter 95 includes a standby state in which ignition is stopped and an ignition state in which fuel is ignited; the burner head 94 includes an off state and an on state for injecting fuel, and when the burner head 94 is in the on state, the fuel pump motor 32 rotates the fuel pump to inject fuel into the heater, and the pressure of the injected fuel is adjusted by adjusting the operating power of the fuel pump motor 32.

The blower motor 31 can drive the blower 91 to rotate so as to blow air into the furnace body 92 of the heater; the blown air can be mixed with the fuel injected into the furnace body 92 and then switched to an ignition state by the igniter 95 to complete ignition, and the fuel is combusted to provide heat to the liquid in the heating coil 93.

During this heating process, the first port 11 of the main pump group 1 is connected to the oil inlet ends of the blower motor 31, the fuel pump motor 32, the deicing pump motor 33, and the anti-icing pump motor 34, respectively, through the control valve group 2. The second port 12 of the main pump group 1 communicates with the oil outlet ends of a blower motor 31, a fuel pump motor 32, a deicing pump motor 33, and an anti-icing pump motor 34, respectively. The main pump set 1 provides hydraulic power for the blower motor 31, the fuel pump motor 32, the deicing pump motor 33 and the anti-icing pump motor 34, so that corresponding blowers 91, fuel pumps, deicing pumps, anti-icing pumps and the like are driven, the heating function of the burner can be completed without adopting motor driving, and the electric part of the deicing vehicle is omitted, so that the structure is simplified.

In one possible embodiment, as shown in fig. 2 and 3, the blower motor 31 may be a hydraulic pump, and the fuel pump motor 32 may be a hydraulic pump; the deicing pump motor 33 is a hydraulic pump; the anti-icing pump motor 34 is a hydraulic pump, so that the cost is low, the performance is stable, the deicing vehicle does not need to be specially configured with a motor for driving the corresponding parts to operate, and the capacity of the deicing vehicle is effectively saved.

One possible implementation way, as shown in fig. 2 and 3, the control valve set 2 includes a speed regulating valve 21, and the oil inlet end of the blower motor 31 is connected to the first port 11 of the main pump set 1 through the speed regulating valve 21, so that the speed of pumping hydraulic oil into the blower motor 31 by the main pump set 1 is controlled through the speed regulating valve 21, the rotation speed of the blower 91 is further adjusted, and finally the speed of blowing air into the furnace body 92 of the heater is adjusted, so as to prevent too much or too little air, and enable the air and the fuel oil to be sufficiently mixed and combusted.

In a possible embodiment, as shown in fig. 2 and 3, the control valve group 2 comprises a first adjustable throttle 23 and a first control valve 22. The oil inlet end of the fuel pump motor 32 is communicated with a first adjustable throttle valve 23, and the first adjustable throttle valve 23 is connected with the first port 11 of the main pump group 1 through a first control valve 22.

The first control valve 22 may be a two-position, two-way valve. When the first control valve 22 is in the first working position, the first adjustable throttle valve 23 is communicated with the first port 11 of the main pump group 1; the speed of pumping hydraulic oil into the fuel pump motor 32 by the main pump group 1 is controlled by adjusting the first adjustable throttle valve 23, the rotating speed of the fuel pump is further adjusted, and finally the speed of injecting fuel oil into the furnace body 92 of the heater is adjusted, so that air and the fuel oil can be fully mixed and combusted, and the fuel oil is prevented from being too much or too little.

When the first control valve 22 is in the second working position, the oil path of the first adjustable throttle valve 23 flowing to the first port 11 of the main pump group 1 is conducted, and the residual hydraulic oil of the fuel pump motor 32 returns through the first control valve 22; the oil path from the first port 11 of the main pump group 1 to the first adjustable throttle 23 is cut off, preventing the main pump group 1 from pumping hydraulic oil into the fuel pump motor 32, so that the fuel pump motor 32 is turned off.

In a possible embodiment, as shown in fig. 2 and 3, the control valve group 2 comprises a second adjustable throttle 24 and a second control valve 25. The oil inlet end of the deicing pump motor 33 is communicated with the second adjustable throttle valve 24, and the second adjustable throttle valve 24 is connected with the first port 11 of the main pump group 1 through the second control valve 25.

The second control valve 25 may be a two-position, two-way valve. When the second control valve 25 is in the third operating position, the second adjustable throttle valve 24 is in communication with the first port 11 of the main pump group 1; the speed of hydraulic oil pumped into the deicing pump motor 33 by the main pump unit 1 is controlled by adjusting the second adjustable throttle valve 24, the rotating speed of the deicing pump is further adjusted to adjust the output quantity of deicing liquid in the deicing liquid tank, and quantitative deicing liquid enters the heater 9 under the action of the deicing pump to be heated and then is ejected out of a water cannon (not shown) of the deicing vehicle, so that the temperature stability of the deicing liquid is ensured, and the corresponding deicing function is completed.

When the second control valve 25 is in the fourth working position, the oil path of the second adjustable throttle valve 24 to the first port 11 of the main pump group 1 is conducted, and the residual hydraulic oil of the deicing pump motor 33 returns through the second control valve 25; the oil path from the first port 11 of the main pump group 1 to the second adjustable throttle valve 24 is cut off, preventing the main pump group 1 from pumping hydraulic oil to the de-icing pump motor 33, and causing the de-icing pump motor 33 to be turned off.

In a possible embodiment, as shown in fig. 2 and 3, the hydraulic system comprises a check valve 35, the oil inlet side of the check valve 35 is communicated with the second port 12 of the main pump group 1, and the oil outlet side of the check valve 35 is communicated with the second adjustable throttle valve 24. When oil is discharged from the first port 11 of the main pump group 1, oil is fed into the second port 12 of the main pump group 1, oil is fed into the oil inlet ends of the blower motor 31, the fuel pump motor 32, the deicing pump motor 33 and the anti-icing pump motor 34, the blower 91 and the fuel pump jointly realize the combustion heating function of the heater 9, the deicing pump pumps the deicing fluid to complete the heating and the deicing ejection processes, and the anti-icing pump pumps the anti-icing fluid to complete the heating and the anti-icing ejection processes.

When the second port 12 of the main pump unit 1 discharges oil, the first port 11 of the main pump unit 1 discharges oil, the hydraulic oil enters the one-way valve 35 through the second port 12, returns to the first port 11 through the second adjustable throttle valve 24 and the second control valve 25 to complete oil circuit circulation, and adjusts the flow through the second adjustable throttle valve 24, so that the pumping speed of the hydraulic oil is reasonably adjusted.

In a possible embodiment, as shown in fig. 2 and 3, the control valve group 2 comprises a third adjustable throttle 26 and a third control valve 27. The oil inlet end of the anti-icing pump motor 34 is communicated with the third adjustable throttle valve 26, and the third adjustable throttle valve 26 is connected with the first port 11 of the main pump group 1 through the third control valve 27.

The third control valve 27 may be a two-position two-way valve. When the third control valve 27 is in the fifth operating position, the third adjustable throttle valve 26 is in communication with the first port 11 of the main pump group 1; thereby through adjusting the speed that third adjustable throttle valve 26 control main pump package 1 pumped hydraulic oil to anti-icing pump motor 34, and then the rotational speed of adjustment anti-icing pump is in order to adjust the output quantity of the anti-icing liquid in the anti-icing liquid case, and the water cannon blowout from the deicing vehicle after accomplishing the heating is got into heater 9 to quantitative anti-icing liquid under the effect of anti-icing pump, guarantees that the temperature of anti-icing liquid is stable and accomplishes corresponding anti-icing function.

When the third control valve 27 is in the sixth working position, the oil path of the third adjustable throttle valve 26 to the first port 11 of the main pump group 1 is conducted, and the residual hydraulic oil of the anti-icing pump motor 34 returns through the third control valve 27; the oil path from the first port 11 of the main pump group 1 to the third adjustable throttle valve 26 is cut off, preventing the main pump group 1 from pumping hydraulic oil to the anti-icing pump motor 34, and causing the anti-icing pump motor 34 to be turned off.

One possible implementation manner, as shown in fig. 2 and 3, the hydraulic system includes a return oil path 5 and a return oil filter 51 disposed on the return oil path 5, one end of the return oil path 5 is communicated with the second port 12 of the main pump set 1, and the other end of the return oil path 5 is communicated with oil outlets respectively communicated with the blower motor 31, the fuel pump motor 32, the deicing pump motor 33 and the anti-icing pump motor 34, so as to filter impurities in the hydraulic oil, thereby enabling the hydraulic system to have a long service life and stable functions.

In one possible embodiment, as shown in fig. 2 and 3, the hydraulic system comprises an emergency pump 6 and a hydraulic unit 8.

The hydraulic unit 8 includes an actuator 81 and a fourth control valve 82 for distributing oil passages of the actuator 81. It is understood that the executing component 81 may be any one of hydraulic functional modules of a hydraulic system on the ice removing vehicle, such as a hydraulic traveling mechanism, an arm support, and the like; taking a common arm support in an ice removing vehicle as an example, the executing component 81 may be one or more of a rotary cylinder, a luffing cylinder and a telescopic cylinder. The fourth control valve 82 is usually a proportional valve, and corresponds to the boom, and the fourth control valve 82 starts the executing component 81 as required, so as to complete the functions of rotation, amplitude variation and extension of the boom.

The main pump set 1 comprises a first main pump 13 and a motive power mechanism 14, wherein a first port 11 and a second port 12 are respectively ports, which are used for feeding and discharging hydraulic oil, of the first main pump 13; the first main pump 13 may be a bidirectional hydraulic pump, wherein when the first port 11 is fed, the second port 12 is fed, the first main pump 13 is operated in a forward direction, and when the first port 11 is fed, the second port 12 is fed, and the first main pump 13 is operated in a reverse direction.

The prime mover 14 can be a fuel engine or a hydraulic engine, the prime mover 14 drives the first main pump 13 to rotate, and further drives corresponding parts to operate, air is blown into the blower 91, fuel oil is sprayed out by the fuel pump, the heater 9 completes a heating function, deicing fluid in the deicing fluid tank enters the heater 9 under the pumping action of the deicing pump to complete heating and then is sprayed out from a water cannon, and anti-icing fluid in the anti-icing fluid tank enters the heater 9 under the pumping action of the anti-icing pump to complete heating and then is sprayed out from the water cannon. In addition, an output end (not shown) of the prime mover 14 is typically connected to the emergency pump 6 through a rotating shaft (121), and the prime mover 14 drives the emergency pump 6 to rotate, so that the emergency pump 6 pumps hydraulic oil to the fourth control valve 82 as power of the actuator 81 to perform a corresponding function.

It should be appreciated that the hydraulic unit 8 may include a second main pump 83 driven by a motor 831. The emergency pump 6 and the second main pump 83 may be connected to the fourth control valve 82 via a shuttle valve 84. Normally, hydraulic oil is pumped from the second main pump 83 to the fourth control valve 82 as power for the actuator 81 to perform the corresponding function. When the motor 831 fails or the second main pump 83 fails, the emergency pump 6 is driven to rotate by the prime mover 14, and hydraulic oil is pumped to the fourth control valve 82, so that the hydraulic system can normally drive the actuator 81 to operate even when the hydraulic system is electrically disconnected, and reliability is improved.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.