阅读说明：本技术 一种油罐及汽车 (Oil tank and car ) 是由 禤钊坚 李骏 杨盛生 陆挺 谢观生 陈前有 石海燕 赵雪松 于 2021-08-16 设计创作，主要内容包括：本发明属于液压系统技术领域,具体公开了一种油罐及汽车。其中该油罐包括有罐体和呼吸管；罐体内设置有储油腔；呼吸管包括依次连通的插入段、冷却段,以及排气段,插入段与储油腔的上部连通；冷却段位于罐体的上方,冷却段与罐体之间具有通风间隙；冷却段连接排气段的一端朝上弯曲形成上升段,排气段的出口朝下设置。储油腔内的油气混合物从呼吸管排出时需经过呼吸管的冷却段,车辆行驶过程中的气流将会通过通风间隙,对冷却段进行风冷,使得流经冷却段的油气混合物在冷却段内充分冷却液化,液化后的油液将从插入段回流到罐体的储油腔内,因此可防止油液挥发物从排气段的出口排出,保持油罐及车辆的清洁,确保车辆的液压转向系统正常运行。(The invention belongs to the technical field of hydraulic systems, and particularly discloses an oil tank and an automobile. Wherein the oil tank comprises a tank body and a breathing tube; an oil storage cavity is arranged in the tank body; the breathing tube comprises an insertion section, a cooling section and an exhaust section which are sequentially communicated, and the insertion section is communicated with the upper part of the oil storage cavity; the cooling section is positioned above the tank body, and a ventilation gap is formed between the cooling section and the tank body; one end of the cooling section, which is connected with the exhaust section, is bent upwards to form an ascending section, and an outlet of the exhaust section is arranged downwards. The oil-gas mixture in the oil storage cavity needs to pass through the cooling section of the breathing tube when being discharged from the breathing tube, the air flow in the running process of the vehicle can pass through the ventilation gap to carry out air cooling on the cooling section, so that the oil-gas mixture flowing through the cooling section is fully cooled and liquefied in the cooling section, and the liquefied oil flows back into the oil storage cavity of the tank body from the insertion section, so that the oil volatile matter can be prevented from being discharged from the outlet of the exhaust section, the cleanness of the oil tank and the vehicle is kept, and the normal operation of a hydraulic steering system of the vehicle is ensured.)

1. An oil tank, comprising:

a tank body; an oil storage cavity is arranged in the tank body;

a breathing tube; the breathing tube comprises an insertion section, a cooling section and an exhaust section which are sequentially communicated, the insertion section is connected with the tank body, and the insertion section is communicated with the upper part of the oil storage cavity; the cooling section is positioned above the tank body, and a ventilation gap is formed between the cooling section and the tank body; the cooling section is connected the one end bending upwards of exhaust section forms the ascending section, the export of exhaust section sets up downwards.

2. The tank of claim 1, wherein: the cooling section is helical.

3. The tank of claim 2, wherein: the inserting section is communicated with the spiral inner side end of the cooling section, and the exhaust section is communicated with the spiral outer side end of the cooling section.

4. A tank as claimed in claim 3, wherein: the upper end of the ascending section is bent downwards and communicated with the exhaust section.

5. The tank of claim 4, wherein: the tank body is cylindrical, and the distance between the outlet of the exhaust section and the central axis of the tank body is greater than half of the outer diameter of the tank body.

6. An oil tank according to any one of claims 1 to 5, wherein: the outlet area of the exhaust section is smaller than the cross-sectional area of the cooling section.

7. An oil tank according to any one of claims 1 to 5, wherein: and filter cotton is arranged in the ascending section.

8. An oil tank according to any one of claims 1 to 5, wherein: the length of the cooling section is more than 0.8 meter.

9. An oil tank according to any one of claims 1 to 5, wherein: the breathing tube is made of metal materials.

10. An automobile, characterized in that: comprising a hydraulic steering system having a flow pipe and an oil tank according to any one of claims 1 to 9; the oil delivery pipe is communicated with the oil storage cavity.

Technical Field

The invention relates to the technical field of hydraulic systems, in particular to an oil tank and an automobile.

Background

When the automobile is used, the liquid level height of an oil tank of the hydraulic steering system and the temperature of oil liquid are fluctuated, so that a breathing channel is required to be arranged in the steering oil tank, the inner cavity of the oil tank is communicated with the atmosphere, and the oil tank is prevented from generating negative pressure or back pressure. The breathing structure that often adopts at present has ordinary breather plug, several kinds of structures such as labyrinth breather cover and breathing skirt, but this several kinds of structures all have jar internal oil gas mixture not through fully cooling just discharge outside the oil tank, and the oil gas mixture of discharge can cool off the liquefaction near the gas vent rapidly, cause near the gas vent to be polluted by fluid, not only influence pleasing to the eye, still let the illusion that the people produced the oil tank oil leak easily, and along with the discharge of oil gas mixture, hydraulic steering system's fluid runs off, lead to the oil content in the oil tank not enough, influence the use.

Disclosure of Invention

The purpose of the invention is: the oil tank is provided to solve the technical problems that oil-gas mixtures discharged from breathing channels of the oil tank pollute the oil tank and oil in the oil tank runs off in the prior art.

In order to achieve the above object, the present invention provides in a first aspect an oil tank, which comprises a tank body and a breathing tube; an oil storage cavity is arranged in the tank body; the breathing tube comprises an insertion section, a cooling section and an exhaust section which are sequentially communicated, the insertion section is connected with the tank body, and the insertion section is communicated with the upper part of the oil storage cavity; the cooling section is positioned above the tank body, and a ventilation gap is formed between the cooling section and the tank body; the cooling section is connected the one end bending upwards of exhaust section forms the ascending section, the export of exhaust section sets up downwards.

Preferably, the cooling section is helical.

Preferably, the insertion section communicates with a helical inboard end of the cooling section, and the exhaust section communicates with a helical outboard end of the cooling section.

Preferably, the upper end of the rising section is bent downward and communicates with the exhaust section.

Preferably, the tank body is cylindrical, and the distance between the outlet of the exhaust section and the central axis of the tank body is greater than the outer diameter of the tank body.

Preferably, the outlet area of the exhaust section is smaller than the cross-sectional area of the cooling section.

Preferably, filter cotton is arranged in the ascending section.

Preferably, the length of the cooling section is greater than 0.8 meters.

Preferably, the breathing tube is made of a metal material.

In a second aspect, the invention provides an automobile comprising a hydraulic steering system having an oil delivery pipe and an oil reservoir as described above, the oil delivery pipe being in communication with the oil reservoir chamber.

The oil tank and the automobile with the oil tank have the advantages that: the breather pipe of the oil tank comprises an insertion section, a cooling section and an exhaust section, the upper part of an oil storage cavity in the tank body is communicated with the insertion section of the breather pipe, an oil-gas mixture in the oil storage cavity needs to pass through the cooling section of the breather pipe when being discharged from the breather pipe, a ventilation gap is arranged between the cooling section and the tank body, and air flow in the running process of a vehicle can cool the cooling section through the ventilation gap, so that the temperature of the cooling section is reduced, and the oil-gas mixture flowing through the cooling section is fully cooled and liquefied in the cooling section; and because the ascending section is bent upwards, the oil liquid cooled and liquefied in the cooling section cannot cross the ascending section, and the liquefied oil liquid flows back to the oil storage cavity of the tank body from the insertion section, so that oil liquid volatile matters can be prevented from being discharged from the outlet of the exhaust section, the oil liquid volatile matters are prevented from being discharged out of the oil tank to be cooled and liquefied, the oil liquid is prevented from being lost, the cleanness of the oil tank and the vehicle is kept, and the normal operation of a hydraulic steering system of the vehicle is ensured.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of an oil tank according to an embodiment of the first aspect of the present invention;

fig. 2 is a schematic cross-sectional structure of the oil tank shown in fig. 1;

fig. 3 is a schematic view of the structure of the breathing tube shown in fig. 1.

In the figure, 100, a tank body; 110. an oil storage chamber; 200. a breathing tube; 210. an insertion section; 220. a cooling section; 230. an exhaust section; 240. a ventilation gap; 250. a rising section.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 3 together, a description will now be given of an oil tank according to an embodiment of the present invention.

As shown in fig. 1, the oil tank according to the embodiment of the present invention includes a tank body 100 and a breathing tube 200, wherein an oil storage cavity 110 for storing hydraulic oil is disposed in the tank body 100, the breathing tube 200 includes an insertion section 210, a cooling section 220, and an exhaust section 230, which are sequentially communicated, the insertion section 210 is connected to the tank body 100, and the insertion section 210 is communicated with an upper portion of the oil storage cavity 110; the height of the connection port between the insertion section 210 and the oil storage cavity 110 is higher than the liquid level of the hydraulic oil in the oil storage cavity 110, so that the hydraulic oil is prevented from directly flowing into the breathing tube 200, the external atmosphere can be communicated with the oil storage cavity 110 in the tank body 100, and the normal air pressure in the oil storage cavity 110 is ensured.

As shown in fig. 1 and 2, the cooling section 220 is located above the can body 100, and a ventilation gap 240 is formed between the cooling section 220 and the can body 100; the end of the cooling section 220 connected with the exhaust section 230 is bent upwards to form an ascending section 250, and the outlet of the exhaust section 230 is arranged downwards. When the liquid level of the hydraulic oil in the tank body 100 rises or the temperature of the hydraulic oil rises, the oil-gas mixture in the oil storage cavity 110 enters the breathing tube 200 from the insertion section 210 and then flows through the cooling section 220, a ventilation gap 240 is formed between the cooling section 220 and the tank body 100, air flow in the driving process of a vehicle can pass through the ventilation gap 240 to cool the cooling section 220, the purpose of reducing the temperature of the cooling section 220 is achieved, the oil-gas mixture flowing through the cooling section 220 is fully cooled and liquefied in the cooling section 220, and the discharge of oil volatile matters is effectively reduced. Since the rising section 250 is bent upward, the oil liquid cooled and liquefied in the cooling section 220 does not climb over the rising section 250 under the action of gravity, so that the oil liquid can be prevented from being discharged from the exhaust section 230, and the liquefied oil liquid flows back into the oil storage chamber 110 of the tank body 100 from the insertion section 210, thereby preventing the oil liquid in the oil storage chamber 110 from being lost. The outlet of the exhaust section 230 faces downwards, which can effectively prevent rainwater or other water drops from entering the breathing tube 200 from the outlet of the exhaust section 230, and prevent the oil from being polluted.

The breathing tube 200 of the oil tank of the embodiment comprises an insertion section 210, a cooling section 220 and an exhaust section 230, the upper part of the oil storage cavity 110 in the tank body 100 is communicated with the insertion section 210 of the breathing tube 200, the oil-gas mixture in the oil storage cavity 110 needs to pass through the cooling section 220 of the breathing tube 200 when being discharged from the breathing tube 200, a ventilation gap 240 is formed between the cooling section 220 and the tank body 100, and the air flow in the running process of the vehicle can pass through the ventilation gap 240 to cool the cooling section 220 so as to achieve the purpose of reducing the temperature of the cooling section 220, so that the oil-gas mixture passing through the cooling section 220 is fully cooled and liquefied in the cooling section 220; moreover, because the ascending section 250 is bent upwards, the oil liquid cooled and liquefied in the cooling section 220 does not cross over the ascending section 250, and the liquefied oil liquid flows back to the oil storage cavity 110 of the tank body 100 from the inserting section 210, so that oil liquid volatile matters can be prevented from being discharged from the outlet of the exhaust section 230, the oil liquid volatile matters are prevented from being discharged out of the oil tank to be cooled and liquefied, the oil liquid is prevented from being lost, the cleanness of the oil tank and the vehicle is kept, and the normal operation of a hydraulic steering system of the vehicle is ensured.

In the preferred embodiment of the present invention, the length of the cooling section 220 is greater than 0.8 m, so that the oil-gas mixture flowing through the cooling section 220 has a sufficient area to exchange heat with the cooling section 220, and the oil-gas mixture is ensured to be sufficiently radiated in the cooling section 220, so that the oil-gas mixture flowing through the cooling section 220 is sufficiently cooled and liquefied in the cooling section 220, thereby effectively reducing the discharge of oil volatile matters and reducing the oil loss. Specifically, the length of the cooling section 220 is 1 meter.

Referring to fig. 1 and 3, in the preferred embodiment of the present invention, the cooling section 220 is spiral, so as to reduce the volume occupied by the cooling section 220, so that the length of the volume occupied by the cooling section 220 is reduced under the condition of meeting the heat dissipation requirement, and the installation of the breathing tube 200 is facilitated. Optimally, the cooling segments 220 are planar and spiral, wherein a gap is formed between the cooling segments 220 of two adjacent turns, so as to facilitate heat exchange. In addition, the cooling section 220 may have other shapes such as a straight tube shape or a square frame shape.

Referring to fig. 1 and 3, in a preferred embodiment of the present invention, the insertion section 210 communicates with the helical inboard end of the cooling section 220, and the rising section 250 communicates with the helical outboard end of the cooling section 220. The two ends of the cooling section 220 are respectively located at the inner side and the outer side of the spiral pipe, one end located at the inner side is connected with the insertion section 210, and one end located at the outer side is connected with the rising section 250, namely, the rising section 250 and the exhaust section 230 are both located at the outer side end of the cooling section 220, so that the outlet of the exhaust section 230 faces the outer side of the tank body 100.

Referring to fig. 2 and 3, in the preferred embodiment of the present invention, the upper end of the rising section 250 is bent downward and communicates with the exhaust section 230. The length direction of exhaust section 230 is vertical, specifically, rising section 250 forms the crooked pipe of type of falling U with exhaust section 230, and the export of exhaust section 230 is vertical downwards, and the crooked pipe of type of falling U can prevent better that the rainwater from staying, makes the rainwater can be along exhaust section 230 down drippage, avoids outside rainwater pollution breathing pipe 200.

Referring to fig. 1 and 2, line a of fig. 2 is a central axis of the can body 100, and in a preferred embodiment of the present invention, the can body 100 has a cylindrical shape, and the distance between the outlet of the degassing section 230 and the central axis (a of fig. 2) of the can body 100 is greater than half of the outer diameter of the can body 100. That is, the outlet of the exhaust section 230 is suspended and avoids the tank 100 right below, so that the gas discharged from the breathing tube 200 cannot be sprayed onto the tank 100, and the maintenance worker can clean the outlet of the exhaust section 230 conveniently to prevent blockage.

Referring to fig. 2 and 3, in the preferred embodiment of the present invention, the outlet area of the exhaust section 230 is smaller than the cross-sectional area of the cooling section 220, so that the possibility of external dust and rain water entering the breathing tube 200 can be reduced, the dust and rain water can be prevented from entering the breathing tube 200, and the dust and rain water can be prevented from polluting the oil in the tank 100.

In a preferred embodiment of the present invention, filter cotton is disposed within the upleg 250. The filter cotton can prevent dust in the outside air from being sucked into the oil storage chamber 110 in the tank 100, and prevent the dust from polluting the oil in the tank 100.

In a preferred embodiment of the present invention, the breathing tube 200 is made of a metal material. The metal material has good heat-conducting property, can meet the heat dissipation requirement of the cooling section 220, and is convenient to process, low in price and convenient to produce. The breathing tube 200 may be made of a metal material such as iron, copper, or aluminum alloy.

The invention also provides a motor vehicle comprising a hydraulic steering system with an oil delivery pipe and an oil tank as described above. The oil delivery pipe communicates with the oil reservoir 110. The hydraulic oil stored in the oil storage cavity 110 of the oil tank can be output to the hydraulic steering system through the oil pipeline, and the hydraulic oil of the hydraulic steering system can also be returned to the oil tank through the oil pipeline. The hydraulic steering system may be a device that uses hydraulic oil for steering, which is common to automobiles. The breathing tube 200 of the oil tank comprises an insertion section 210, a cooling section 220 and an exhaust section 230, the upper part of the oil storage cavity 110 in the tank body 100 is communicated with the insertion section 210 of the breathing tube 200, the oil-gas mixture in the oil storage cavity 110 needs to pass through the cooling section 220 of the breathing tube 200 when being discharged from the breathing tube 200, a ventilation gap 240 is formed between the cooling section 220 and the tank body 100, and the air flow in the running process of the vehicle can pass through the ventilation gap 240 to cool the cooling section 220 so as to achieve the purpose of reducing the temperature of the cooling section 220, so that the oil-gas mixture flowing through the cooling section 220 is sufficiently cooled and liquefied in the cooling section 220; moreover, because the ascending section 250 is bent upwards, the oil liquid cooled and liquefied in the cooling section 220 does not cross over the ascending section 250, and the liquefied oil liquid flows back to the oil storage cavity 110 of the tank body 100 from the inserting section 210, so that oil liquid volatile matters can be prevented from being discharged from the outlet of the exhaust section 230, the oil liquid volatile matters are prevented from being discharged out of the oil tank to be cooled and liquefied, the oil liquid is prevented from being lost, the cleanness of the oil tank and the vehicle is kept, and the normal operation of a hydraulic steering system of the vehicle is ensured.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.