阅读说明：本技术 一种油箱 (Oil tank ) 是由 黄爱武 王洪涛 于 2020-10-30 设计创作，主要内容包括：本申请公开了一种油箱,用于收纳液压传动系统的液压介质,包括油箱本体,所述油箱本体上设有液压介质流入口和液压介质流出口,于所述油箱本体的内部设有用于分离液压介质中杂质的分离装置,所述分离装置的液压介质的入口端与所述液压介质流入口连通设置,所述分离装置分离出的液压介质作为液压传动系统的工作介质；工作时,所述油箱本体内部的设定压力大于所述油箱本体的外部压力。本申请所公开的油箱具有能够分离杂质、抑制外界的污染物进入油箱、保证液压系统正常安全工作、降低液压系统的使用成本和维护成本等优点；同时能对液压系统的工作泵提供压力油源,也能对液压系统的执行元件的补油系统供给液压介质。(The application discloses an oil tank for containing hydraulic medium of a hydraulic transmission system, which comprises an oil tank body, wherein a hydraulic medium inflow port and a hydraulic medium outflow port are formed in the oil tank body, a separating device for separating impurities in the hydraulic medium is arranged in the oil tank body, the inlet end of the hydraulic medium of the separating device is communicated with the hydraulic medium inflow port, and the hydraulic medium separated by the separating device is used as working medium of the hydraulic transmission system; when the oil tank works, the set pressure inside the oil tank body is larger than the external pressure of the oil tank body. The oil tank disclosed by the application has the advantages that impurities can be separated, external pollutants are prevented from entering the oil tank, the normal and safe operation of a hydraulic system is guaranteed, the use cost and the maintenance cost of the hydraulic system are reduced, and the like; meanwhile, the hydraulic system can provide a pressure oil source for a working pump of the hydraulic system and also can supply a hydraulic medium to an oil supplementing system of an actuating element of the hydraulic system.)

1. An oil tank for receiving a hydraulic medium of a hydraulic transmission system,

the hydraulic transmission system comprises an oil tank body, wherein a hydraulic medium inflow port and a hydraulic medium outflow port are formed in the oil tank body, a separation device for separating impurities in hydraulic medium is arranged in the oil tank body, an inlet end of the hydraulic medium of the separation device is communicated with the hydraulic medium inflow port, and the hydraulic medium separated by the separation device is used as a working medium of the hydraulic transmission system;

when the oil tank works, the set pressure inside the oil tank body is larger than the external pressure of the oil tank body.

2. Fuel tank according to claim 1,

the separating device comprises a separating fluid channel, one end of the separating fluid channel is communicated with the inlet end of the hydraulic medium, a plurality of separating through holes are formed in the separating fluid channel, the hydraulic medium containing impurities is discharged from the separating through holes under the action of centrifugal force in the flowing process of the separating fluid channel, and a separated matter diversion and collection unit for collecting separated matters is arranged on the outer side of the separating fluid channel.

3. Fuel tank according to claim 2,

the separation fluid channel comprises a spiral fluid channel, and the separation through hole is arranged on the telecentric side and/or the proximal side of the spiral fluid channel; alternatively, the first and second electrodes may be,

the separation fluid channel comprises a vortex fluid channel, and the separation through hole is arranged at the far center side and/or the near center side of the vortex fluid channel.

4. Fuel tank according to claim 2,

the separated object diversion and collection unit is a separated object diversion and collection unit with a diversion inclined plane, and the separated impurities flow to a set area through the diversion inclined plane so as to be thoroughly separated from the hydraulic medium.

5. Fuel tank according to claim 4,

the separator diversion collecting unit is a conical diversion structure body which is arranged on the outer side of the separation fluid channel, and the other end of the separation fluid channel penetrates through the conical diversion structure body to be communicated with the inside of the oil tank body outside the separation device; alternatively, the first and second electrodes may be,

the separator diversion collecting unit is a conical diversion structure body, the conical diversion structure body is arranged on the outer side of the separation fluid channel, the other end of the separation fluid channel is located inside the conical diversion structure body, a plurality of medium channels communicated with the outside of the separation device and inside the oil tank body are arranged on the side wall of the conical diversion structure body, and separated hydraulic media flow out of the separation device through the medium channels and into the outside of the separation device and the oil tank body.

6. Fuel tank according to claim 5,

in the structure that the other end of the separation fluid channel is positioned in the conical flow guide structure body, a hydrophilic coating for absorbing water is arranged on the inner side wall of the conical flow guide structure body, and flow blocking protrusions are arranged on the periphery of the medium channel on the inner side wall of the conical flow guide structure body to prevent water from flowing out of the separation device from the medium channel.

7. Fuel tank according to any one of claims 2 to 6,

the separator diversion collection unit comprises an impurity collection area, the impurity collection area is located at the bottom of the oil tank body, and a sealing state of the oil tank during working and a conduction state of the oil tank during maintenance are arranged between the impurity collection area and the outside of the oil tank body.

8. Fuel tank according to any one of claims 1 to 6,

the oil tank is characterized in that a pressure maintaining unit is further arranged on the oil tank body and is arranged on the side wall of the oil tank body and communicated with the inside of the oil tank body, so that the inside of the oil tank body is within a set pressure range.

9. Fuel tank according to claim 8,

the oil tank body is also provided with a pressure control unit, the pressure control unit is arranged on the upper part of the oil tank body and is communicated with the inside of the oil tank body, and when the pressure inside the oil tank body exceeds a set pressure range, the pressure inside the oil tank body is released through the pressure control unit, so that the pressure inside the oil tank body is maintained within the set pressure range.

10. Fuel tank according to any one of claims 1 to 6 and 9,

the oil tank is internally provided with at least one blocking baffle which divides the inside of the oil tank body into a plurality of areas so as to prevent a hydraulic medium in the oil tank from shaking in the moving process of the oil tank and promote the heat dissipation of the hydraulic medium or the sufficient precipitation of residual impurities;

the hydraulic medium outflow port is provided on the tank body remote from the separator.

Technical Field

The application belongs to the technical field of hydraulic transmission, especially relates to an oil tank.

Background

The existing hydraulic transmission system is provided with a hydraulic oil tank which is used for storing a hydraulic medium container required for ensuring the normal work of the hydraulic transmission system. In specific work, hydraulic oil in the hydraulic oil tank is pumped to an execution element (such as a piston cylinder, a hydraulic motor and the like) through a pumping unit, and after the execution task is finished, the hydraulic oil returns to the hydraulic oil tank to precipitate impurities or release bubbles or dissipate absorbed heat for the next cycle use.

As is well known, a hydraulic transmission system is often used as a transmission system of a construction machine (e.g., a hydraulic excavator, a hydraulic crane, a loader, a bulldozer, etc.), etc., and the construction machine is a machine device that is indispensable for various kinds of construction work. Taking an excavator as an example, the excavator is widely applied to various operations such as demolition works and site cleaning, and is often used even in operation and construction under special conditions such as dangerous tunnels, fire fighting and rescue, earthquake relief and the like. It is easy to find that the use environment of the hydraulic transmission system is often very bad, dirty objects or air are easily mixed into the hydraulic medium when any leakage point is leaked in the use process, if the dirt (water, fine solid particles or bubbles and the like) in the hydraulic medium cannot be separated out in time, the damage such as abrasion or cavitation and the like to the component unit of the hydraulic transmission system is caused, and even the normal work of the hydraulic system is seriously influenced, so that the use cost and the maintenance cost of equipment, devices and the like containing the hydraulic transmission system are increased. It is of great importance if a reasonable separation of the dirt in the hydraulic medium can be achieved.

In the use process of an oil tank of an existing hydraulic system, hydraulic oil directly flows back to the oil tank after being used, and in order to ensure that the air pressure in the oil tank is balanced with the outside when rising or falling along with the temperature, a ventilation through hole communicated with the outside is arranged on the oil tank, so that gas in the oil tank can freely flow in and out. Although the air filter is generally arranged in the air-permeable through hole, due to the limited filtering precision of the filter, in the actual use process, dirty objects in the severe environment easily enter the oil tank from the through hole, so that the normal work of a hydraulic system can be influenced after the oil tank is used for a period of time, and even hydraulic components are damaged. Therefore, the traditional oil tank on the engineering machinery has great hidden trouble for the normal use of the hydraulic system.

Therefore, the applicant provides an oil tank which has the advantages of separating impurities, inhibiting pollutants from entering the oil tank, ensuring normal and safe operation of a hydraulic system, reducing the use cost and the maintenance cost of the hydraulic system and the like, and can provide a pressure oil source for a working pump of the hydraulic system and supply a hydraulic medium for an oil supplementing system of an actuating element of the hydraulic system.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

Disclosure of Invention

The present invention provides a fuel tank to solve at least one of the above technical problems.

The technical scheme adopted by the invention is as follows:

an oil tank for receiving a hydraulic medium of a hydraulic transmission system,

the hydraulic transmission system comprises an oil tank body, wherein a hydraulic medium inflow port and a hydraulic medium outflow port are formed in the oil tank body, a separation device for separating impurities in hydraulic medium is arranged in the oil tank body, an inlet end of the hydraulic medium of the separation device is communicated with the hydraulic medium inflow port, and the hydraulic medium separated by the separation device is used as a working medium of the hydraulic transmission system;

when the oil tank works, the set pressure inside the oil tank body is larger than the external pressure of the oil tank body.

And further selectively enabling the separation device to comprise a separation fluid channel, wherein one end of the separation fluid channel is communicated with the inlet end of the hydraulic medium, a plurality of separation through holes are formed in the separation fluid channel, the hydraulic medium containing impurities is discharged from the separation through holes under the action of centrifugal force in the flowing process of the separation fluid channel, and a separated matter diversion and collection unit for collecting separated matters is arranged on the outer side of the separation fluid channel.

Further selectively selecting the separation fluid channel to comprise a spiral fluid channel, wherein the separation through hole is distributed at the far center side and/or the near center side of the spiral fluid channel; or, the separation fluid channel selectively comprises a vortex fluid channel, and the separation through hole is arranged at the far center side and/or the near center side of the vortex fluid channel.

And further selectively setting the separated object diversion and collection unit as a separated object diversion and collection unit with a diversion inclined plane, wherein the separated impurities flow to a set area through the diversion inclined plane so as to completely separate the impurities from the hydraulic medium.

The separator diversion collecting unit is further selectively set to be a conical diversion structure body, the conical diversion structure body is arranged on the outer side of the separation fluid channel, and the other end of the separation fluid channel penetrates through the conical diversion structure body to be communicated with the inside of the oil tank body outside the separation device; or the separated material diversion and collection unit is selectively set to be a conical diversion structure body, the conical diversion structure body is arranged on the outer side of the separation fluid channel, the other end of the separation fluid channel is positioned in the conical diversion structure body, a plurality of medium channels communicated with the inside of the oil tank body outside the separation device are arranged on the side wall of the conical diversion structure body, and the separated hydraulic medium flows out of the separation device from the separation device to the inside of the oil tank body outside the separation device through the medium channels.

In the structure that the other end of the separation fluid channel is positioned in the conical flow guide structure body, a hydrophilic coating for absorbing water is further selectively arranged on the inner side wall of the conical flow guide structure body, and flow blocking protrusions are arranged on the periphery of the medium channel on the inner side wall of the conical flow guide structure body so as to prevent water from flowing out of the separation device from the medium channel.

And the separator diversion and collection unit further comprises an impurity collection area selectively, the impurity collection area is positioned at the bottom of the oil tank body, and a sealing state of the oil tank during working and a conduction state of the oil tank during maintenance are arranged between the impurity collection area and the outside of the oil tank body.

And further selectively enabling the oil tank body to be further provided with a pressure maintaining unit, wherein the pressure maintaining unit is arranged on the side wall of the oil tank body and is communicated with the inside of the oil tank body, so that the inside of the oil tank body is in a set pressure range.

And when the pressure in the oil tank body exceeds a set pressure range, the pressure in the oil tank body is released through the pressure control unit, so that the pressure in the oil tank body is maintained in the set pressure range.

At least one blocking baffle is further selectively arranged in the oil tank, and the blocking baffle divides the interior of the oil tank body into a plurality of areas so as to prevent a hydraulic medium in the oil tank from shaking in the movement process of the oil tank and promote the heat dissipation of the hydraulic medium or the sufficient precipitation of residual impurities; the hydraulic medium outflow port is provided on the tank body remote from the separator.

In the present application, those skilled in the art are motivated to arrange necessary components, units or systems where necessary, according to the well-known art in the relevant field.

Through the oil tank that this application provided can bring following beneficial effect:

1. according to the oil tank, the separation device capable of separating impurities (water, fine solid particles or bubbles and the like) in the hydraulic medium is arranged in the oil tank body, and the impurities (water, fine solid particles or bubbles and the like) in the hydraulic medium are separated through the separation device when the hydraulic medium flows back into the oil tank for next recycling; besides, at the during operation, this application is through making the inside set pressure of oil tank body is greater than the external pressure of oil tank body, and then can avoid the outside dirty thing of oil tank to get into effectively the inside of oil tank causes the pollution to hydraulic medium.

2. The separation device comprises a separation fluid channel, the separation fluid channel comprises a spiral fluid channel and/or a vortex fluid channel, and a plurality of separation through holes are formed in the separation fluid channel, so that when a hydraulic medium flows through the separation fluid channel, impurities can be separated from the separation through holes under the action of centrifugal force, specifically, impurities such as water contained in the hydraulic medium can be separated from the separation through holes under the action of centrifugal force; meanwhile, the separated matter is guided to a set position by a separated matter guide and collection unit which is arranged outside the separation fluid channel and is used for collecting the separated matter.

3. The other end of the separation fluid channel can selectively penetrate through the conical diversion structure body to be communicated with the inside of the oil tank body outside the separation device, the separated hydraulic medium directly flows into the oil tank, and the separated impurities are guided to a set position under the action of the separated material diversion and collection unit; in addition, this application can also be through making separation fluid channel's the other end is located the inside of toper water conservancy diversion structure, and be equipped with the hydrophilic coating that is used for adsorbing moisture on the inside wall of toper water conservancy diversion structure, and further be in the periphery of the medium channel of the inside wall of toper water conservancy diversion structure is equipped with the choked flow arch, and the moisture of separating is adsorbed on the hydrophilic coating, and under the effect of choked flow arch, prevent that the moisture from flowing out the inboard of toper water conservancy diversion structure, guarantee that moisture carries other hydrophilic impurity flow direction awl end of centrifugal separation along the inside wall of toper water conservancy diversion structure under the effect of gravity or engineering vibrations.

4. This application is through making separator water conservancy diversion collection unit includes the impurity collecting region, and makes the impurity collecting region is located the bottom of oil tank body just has the conducting state with the external world when the oil tank is maintained, and then makes the oil tank is convenient for more maintain, can reduce the maintenance cost of oil tank simultaneously.

5. This application is through set up the pressurize unit on the oil tank body, under the effect of pressurize unit, make the oil tank can maintain at the pressure scope of settlement, and then can prevent dirty thing to get into effectively the oil tank body is inside to cause the pollution to hydraulic medium.

6. According to the oil tank, the pressure control unit is arranged on the oil tank body, when the pressure in the oil tank is larger than a set pressure range, the pressure control unit can discharge redundant pressure, so that the formation of equivalent pressure in the oil tank is avoided, and the oil tank is safer to use; and meanwhile, the influence on the normal separation of the separation device can be avoided.

7. This application is through inside at least one separation baffle that sets up of oil tank, and then separate into a plurality of regions with the inside hydraulic medium of oil tank, prevent that the oil tank from taking place to rock at the inside hydraulic medium of motion in-process oil tank to make the abundant separation out and the thermal effluvium of settling out or bubble of remaining impurity among the hydraulic medium, be favorable to supplying with the hydraulic medium of hydraulic system cleanness and suitable temperature.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a fuel tank provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another oil tank provided in the embodiment of the present application.

Wherein the content of the first and second substances,

1 a tank body, 11 a hydraulic medium inlet, 12 a hydraulic medium outlet, 13 a blocking baffle,

2, a separation device, 21 a separation fluid channel, 211 a separation through hole, 212 a spiral fluid channel, 22 a separated object diversion and collection unit, a medium channel on the inner wall of a 221 conical diversion structure body, 222 a flow blocking bulge, 223 an impurity collection region,

3 a pressure maintaining unit is arranged on the upper portion of the shell,

and 4, a pressure control unit.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present application, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the present application, the term "proximal side of the spiral fluid channel" refers to a side of the spiral fluid channel where the cross-section is closer to the rotation axis of the spiral fluid channel than the distal side.

In the present application, the term "distal side of the spiral fluid channel" refers to a side of the spiral fluid channel having a cross-section that is further away from the axis of rotation of the spiral fluid channel than the proximal side.

In the present application, the term "proximal side of the scroll-type fluid passage" refers to a side of a cross section of the scroll-type fluid passage closer to the rotation axis of the scroll-type fluid passage than the distal side.

In the present application, the term "distal side of the scroll-type fluid passage" refers to a side of a cross section of the scroll-type fluid passage which is farther from the rotational axis of the scroll-type fluid passage than the proximal side.

In the present application, by "separator flow collection unit" is meant a unit capable of guiding the separator in the hydraulic medium to a collection position.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

For convenience of description, the terms "front", "rear", "left", "right", "up" and "down" will be used hereinafter to refer to the fuel tank in use, relative to the user.

An oil tank as shown in fig. 1 is used for accommodating a hydraulic medium of a hydraulic transmission system, and includes an oil tank body 1, wherein the oil tank body 1 is provided with a hydraulic medium inlet 11 and a hydraulic medium outlet 12, a separation device 2 for separating impurities in the hydraulic medium is arranged inside the oil tank body 1, an inlet end of the hydraulic medium of the separation device 2 is communicated with the hydraulic medium inlet 11, and the hydraulic medium separated by the separation device 2 is used as a working medium of the hydraulic transmission system; when the oil tank works, the set pressure inside the oil tank body 1 is larger than the external pressure of the oil tank body 1. It should be noted that the oil tank in the present application is not limited to storing hydraulic oil, and may be selectively set to any fluid capable of serving as a hydraulic medium of the transmission system, and in particular, the hydraulic medium may be selectively set to hydraulic oil, water, or the like. The set pressure described in the present application is not specifically required, and may be specifically set according to actual needs. According to the oil tank, the separation device 2 capable of separating impurities in the hydraulic medium is arranged in the oil tank body 1, so that the impurities in the hydraulic medium are separated out through the separation device 2 when the hydraulic medium flows back into the oil tank for next recycling; besides, at the during operation, this application is through making the inside set pressure of oil tank body 1 is greater than the external pressure of oil tank body 1, and then can avoid the outside dirty thing of oil tank to get into effectively the inside of oil tank causes the pollution to hydraulic medium. In a practical implementation, the inlet end of the hydraulic medium of the separation device may be further selectively located above the outlet end of the hydraulic medium of the separation device.

As a preferred embodiment of the present application, the present application may further selectively enable the separation device 2 to include a separation fluid channel 21, one end of the separation fluid channel 21 is disposed to be communicated with the inlet end of the hydraulic medium, a plurality of separation through holes 211 are disposed on the separation fluid channel 21, the hydraulic medium containing impurities is discharged from the separation through holes 211 under the action of centrifugal force during the flowing process of the separation fluid channel 21, and a separated matter diversion collection unit 22 for collecting separated matters is disposed outside the separation fluid channel 21.

As a preferred example under the present embodiment, the present application may further selectively enable the separation fluid channel 21 to include a spiral fluid channel 212, and the separation via 211 is disposed on a distal side and/or a proximal side of the spiral fluid channel 212. In specific implementation, the position and density of the separation via 211 can be set according to actual needs. Specifically, for example, when the water in the hydraulic oil is to be separated, it is preferable that the separation via hole 211 is disposed on the far side of the spiral fluid channel 212, and when the hydraulic oil flows in the spiral fluid channel 212, the water and the hydraulic oil can be effectively separated from each other by the centrifugal force, and the separated water is separated from the hydraulic oil through the separation via hole 211. When the hydraulic oil contains gas, the separation through hole 211 can be selectively arranged on the proximal side of the spiral fluid channel 212.

As another preferred example in this embodiment, the present application may further selectively select that the separation fluid channel 21 includes a scroll-type fluid channel, and the separation via 211 is disposed on the distal side and/or the proximal side of the scroll-type fluid channel. The scroll-type fluid passage has the same operation principle as the spiral-type fluid passage 212, and is different only in the arrangement deformation of the fluid passage.

By providing the separation device 2 with a separation fluid channel 21, and further providing the separation fluid channel 21 with a spiral fluid channel and/or a scroll fluid channel, and providing a plurality of separation through holes 211 in the separation fluid channel 21, the hydraulic medium can be separated from the separation through holes 211 under the action of centrifugal force when flowing through the separation fluid channel 21, and particularly, for example, impurities such as water contained in the hydraulic medium can be separated from the separation through holes 211 under the action of centrifugal force; meanwhile, the separated matter is guided to a set position by a separated matter guide and collection unit 22 for collecting the separated matter, which is disposed outside the separation flow channel 21.

As a preferred embodiment of the present application, all the aforementioned embodiments and examples of the present application including the guided separated material collecting unit 22 may further selectively provide that the guided separated material collecting unit 22 is a guided separated material collecting unit having a guiding inclined plane, and the separated impurities flow to a set area through the guiding inclined plane, so as to completely separate the impurities from the hydraulic medium. In a specific embodiment, the impurities separated from the hydraulic medium are collected on the flow-guiding inclined plane and flow to the set area under the action of gravity or engineering vibration.

As a preferred example of the present embodiment, as shown in fig. 1, the present application may further selectively provide the separated material guiding and collecting unit 22 as a conical guiding structure, the conical guiding structure is disposed outside the separation fluid channel 21, and the other end of the separation fluid channel 21 passes through the conical guiding structure to communicate with the inside of the tank body 1 outside the separation device 2. In a specific working process, the hydraulic medium flows in the separation fluid channel 21, impurities are discharged from the separation through hole 211 under the action of centrifugal force, and the hydraulic medium discharged through the other end of the separation fluid channel 21 is the separated hydraulic medium.

As a preferred example of the present embodiment, as shown in fig. 2, the present application may further selectively provide that the separated material guiding and collecting unit 22 is a conical guiding structure, the conical guiding structure is disposed outside the separation fluid channel 21, the other end of the separation fluid channel 21 is disposed inside the conical guiding structure, a plurality of medium channels 221 communicating with the inside of the tank body 1 outside the separation device 2 are disposed on the side wall of the conical guiding structure, and the separated hydraulic medium flows out from the separation device 2 into the tank body 1 outside the separation device 2 through the medium channels 221. As an alternative embodiment, in a specific implementation, a hydrophilic coating for adsorbing moisture may be further selectively provided on an inner side wall of the conical flow guiding structure, and a flow blocking protrusion 222 is provided on an outer circumference of the medium channel 221 of the inner side wall of the conical flow guiding structure to block water from flowing out of the separation device 2 from the medium channel 221. In the concrete working process, the separation of the medium containing water in the hydraulic medium is taken as an example, and during the process of flowing the hydraulic medium containing water in the separation fluid channel 21, under the action of centrifugal force, water is discharged from the separation through hole 211, under the action of the hydrophilic coating, the separated water is adsorbed to the surface of the hydrophilic coating, the separated hydraulic medium flows into the oil tank body 1 at the outer side of the separation device 2 from the medium channel 221 of the inner side wall of the conical diversion structure body, under the action of the flow blocking protrusions 222, water is blocked inside the separating device 2, under the action of gravity or engineering vibration, other hydrophilic impurities which are centrifugally separated are carried along the inner side wall of the conical diversion structure body to flow to the conical bottom, thereby preventing the separated water from being mixed again with the hydraulic medium obtained after the separation from the medium passage 221 to cause secondary pollution.

The structure of the conical flow guide structure body in the present application is not particularly limited, and may be a polygonal pyramid structure, a conical structure, or a conical table structure. The conical flow guiding structure is preferably provided as a conical structure or a conical table structure.

As an alternative embodiment, all the embodiments, examples, and their alternatives and examples of the present application that include the separated material diversion and collection unit 22 can further selectively make the separated material diversion and collection unit 22 include an impurity collection area 223, the impurity collection area 223 is located at the bottom of the fuel tank body 1, and a sealing state during the operation of the fuel tank and a conduction state during the maintenance of the fuel tank are provided between the impurity collection area 223 and the outside of the fuel tank body 1. This application is through making separator water conservancy diversion collection unit includes impurity collecting region 223, and makes impurity collecting region 223 is located oil tank body 1's bottom just has the on-state with the external world when the oil tank is maintained, and then makes the oil tank is convenient for more maintain, can reduce the maintenance cost of oil tank simultaneously.

As an alternative embodiment, all the above-described embodiments, examples, and their alternative embodiments and examples of the present invention may further optionally further include a pressure maintaining unit 3 on the tank body 1, wherein the pressure maintaining unit 3 is provided on a sidewall of the tank body 1 and communicates with the inside of the tank body 1 so that the inside of the tank body 1 is within a set pressure range. In the present embodiment, the pressure maintaining unit 3 can be selectively configured as an accumulator. This application is through set up pressurize unit 3 on the oil tank body 1, pressurize unit 3 through the fluid between hydraulic medium inflow opening 11 and hydraulic medium outflow opening 12 the compression of gas in the oil tank under the circumstances of plus acting, establish in the oil tank 1 with hydraulic medium surface pressure be greater than external pressure for pressurize unit 3 also keeps certain pressure, under the effect of pressurize unit 3, makes the oil tank can maintain the pressure range of settlement, and then can prevent dirty thing to get into effectively 1 inside of oil tank body causes the pollution to hydraulic medium.

As an alternative embodiment, all the aforementioned embodiments, examples, and their alternative embodiments and examples of the present invention may further selectively provide a pressure control unit 4 on the tank body 1, wherein the pressure control unit 4 is disposed on the upper portion of the tank body 1 and is communicated with the inside of the tank body 1, and when the pressure inside the tank body 1 exceeds a set pressure range, the pressure inside the tank body 1 is released through the pressure control unit 4, so that the pressure inside the tank body 1 is maintained within the set pressure range. In practical implementation, the pressure control unit 4 may be selectively configured as an explosion-proof valve or a one-way valve with a set opening pressure. According to the oil tank, the pressure control unit 4 is arranged on the oil tank body 1, when the pressure in the oil tank is larger than a set pressure range, the pressure control unit 4 can discharge redundant pressure, so that the formation of equivalent pressure in the oil tank is avoided, and the oil tank is safer to use; at the same time, the influence on the normal separation of the separation device 2 can be avoided.

As a changeable implementation manner, all the aforementioned implementation manners, embodiments, and changeable implementation manners, embodiments of the present invention may further selectively provide at least one blocking baffle 13 inside the oil tank, where the blocking baffle 13 divides the inside of the oil tank body 1 into a plurality of zigzag areas to avoid the hydraulic medium inside the oil tank from shaking during the movement of the oil tank; the hydraulic medium outflow port 12 is provided in the tank body 1 remote from the separator 2. When the device is specifically implemented, the number and the arrangement mode of the blocking baffles 13 are not specifically limited, so that the hydraulic medium in the oil tank is prevented from being greatly shaken when the oil tank moves, impurities filled in the hydraulic medium are precipitated and released, and the heat dissipation purpose is achieved. This application is through inside at least one separation baffle 13 that sets up of oil tank, and then separate into a plurality of tortuous regions with the inside hydraulic medium of oil tank, prevent that the inside hydraulic medium of oil tank from taking place to rock at the motion in-process oil tank to make the impurity among the hydraulic medium fully deposit, the bubble fully appear and thermal abundant effluvium, be favorable to supplying with the hydraulic medium of hydraulic system cleanness and suitable temperature.

It should be noted that the drawings in the present application are only schematic, and any technical solutions meeting the requirements of the text of the present application belong to the protection scope of the present application.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.