Hydraulic oil tank and tank car

Abstract

The utility model provides a hydraulic oil tank and a tank car, the hydraulic oil tank is used for providing hydraulic oil for a hydraulic loop of a liquid unloading pump of the tank car, the hydraulic oil tank comprises a tank body; the heat dissipation assembly comprises a plurality of fins used for conducting heat exchange with air, the fins are connected to the peripheral wall of the box body, the fins extend in the axis direction of the box body, and the fins are arranged in the circumferential direction of the box body at intervals. According to the hydraulic oil tank, the heat dissipation assembly is arranged on the tank body of the hydraulic oil tank, the heat dissipation assembly comprises the multiple fins arranged on the peripheral wall of the tank body, the heat dissipation area of the tank body is increased through the fins, heat exchange with air is achieved so as to slow down the temperature rise of hydraulic oil in the tank body, and therefore the normal working efficiency of the liquid discharging pump is guaranteed, and mechanical abrasion is reduced; and the service life of each component in the hydraulic loop is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transport vehicles, in particular to a hydraulic oil tank and a tank truck. Background Art

[0002] A tank truck is a special transport vehicle with a tank body, which is mainly used to transport various liquids, such as gasoline, crude oil, various viscous oils and liquid ammonia, etc. The substances transported in the tank body are loaded and unloaded by a liquid unloading pump, which can be driven by electric drive or hydraulic motor drive. Among them, the hydraulic motor drive method is widely used because of its good safety and easy implementation on tank trucks.

[0003] However, in the current related technology, it generally takes 1 to 2 hours to unload the liquid by driving the unloading pump with a hydraulic motor. Specifically, the hydraulic oil is stored in the hydraulic oil tank, flows to the hydraulic pump during operation, and is used to drive the hydraulic motor after being pressurized by the hydraulic pump. After the hydraulic motor drives the unloading pump to work, the hydraulic oil flows back to the hydraulic oil tank to form a hydraulic circuit, which takes a considerable amount of time.

[0004] Long working cycles will cause the hydraulic oil to continue to heat up, which will reduce the working efficiency of the hydraulic circuit of the unloading pump, increase mechanical wear, cause the hydraulic oil to deteriorate and affect the service life of the tank truck. Utility Model Content

[0005] The utility model aims to solve the problems of reduced working efficiency, mechanical wear and deterioration of the hydraulic oil due to the heating of the hydraulic oil in the hydraulic circuit of the liquid unloading pump after long-term operation, and the deterioration of the hydraulic oil due to the heating of the hydraulic oil.

[0006] In order to solve the above technical problems, the first aspect of the utility model provides a hydraulic oil tank for providing hydraulic oil to the hydraulic circuit of the unloading pump of the tank truck, and the hydraulic oil tank comprises:

[0007] Box;

[0008] The heat dissipation component comprises a plurality of fins for heat exchange with air, wherein the fins are connected to the outer peripheral wall of the box body, the fins extend along the axial direction of the box body, and the plurality of fins are arranged at intervals along the circumference of the box body.

[0009] In an exemplary embodiment of the present disclosure, a cavity for accommodating hydraulic oil is formed inside the box body, and an oil inlet and an oil outlet connected to the cavity are provided on the box body. A partition is provided in the cavity, and the partition is connected to the inner wall of the cavity to divide the cavity into two parts connected to each other, and the oil inlet and the oil outlet are located on both sides of the partition.

[0010] In an exemplary embodiment of the present disclosure,

[0011] The oil inlet and the oil outlet are both provided with oil filters for filtering the hydraulic oil; the box body is also provided with a liquid level meter for observing the liquid level height of the cavity.

[0012] The second aspect of the utility model provides a tank truck, comprising a hydraulic oil tank as described above, and the tank truck also includes: a vehicle body; a tank body, which is arranged on the vehicle body; wherein the box body of the hydraulic oil tank is suspended on the side of the tank body through a connecting piece.

[0013] In an exemplary embodiment of the present disclosure, the box body is a cylindrical structure, the box body extends along the length direction of the tank body, and the box body does not exceed the edge of the vehicle body in the width direction.

[0014] In an exemplary embodiment of the present disclosure, the plurality of fins are located on an outer peripheral wall of the box body facing the tank body.

[0015] In an exemplary embodiment of the present disclosure, the box is arranged below the horizontal center plane of the tank, and the box is located above the vehicle body.

[0016] In an exemplary embodiment of the present disclosure, the connecting member includes a first connecting portion and a second connecting portion that are detachably connected, the first connecting portion is fixedly connected to the side of the tank body, and the second connecting portion is fixedly connected to the outer peripheral wall of the box body.

[0017] In an exemplary embodiment of the present disclosure, the first connection portion is a plate-shaped structure vertically connected to the side of the tank body, the second connection portion is a plate-shaped structure vertically connected to the outer peripheral wall of the box body, and the first connection portion and the second connection portion are attached together;

[0018] Mounting holes are provided at corresponding positions of the first connecting portion and the second connecting portion, and the first connecting portion and the second connecting portion are detachably connected by means of bolt fasteners passing through the corresponding mounting holes.

[0019] In an exemplary embodiment of the present disclosure, the second connecting portion has an arc-shaped groove adapted to the outer peripheral wall profile of the box body, and the box body is snapped into the arc-shaped groove of the second connecting portion and fixedly connected to the groove wall of the arc-shaped groove.

[0020] It can be seen from the above technical solution that the beneficial effects of the utility model are:

[0021] In the present application, a heat dissipation component is arranged on the hydraulic oil tank body. The heat dissipation component is a plurality of fins arranged on the outer peripheral wall of the box body. The fins increase the heat dissipation area of ​​the box body, and heat exchange with the air is performed to slow down the temperature rise of the hydraulic oil in the box body, thereby ensuring the normal working efficiency of the unloading pump, reducing mechanical wear, and increasing the service life of various components in the hydraulic circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the main schematic diagram of the hydraulic oil tank in this embodiment.

[0023] Figure 2 It is a cross-sectional view of the hydraulic oil tank in this embodiment.

[0024] Figure 3 It is a side view of the hydraulic oil tank in this embodiment.

[0025] Figure 4 It is a working principle diagram of the hydraulic circuit of the liquid unloading pump in the tank truck in this embodiment.

[0026] Figure 5 It is a partial structural schematic diagram of the tank truck in this embodiment.

[0027] Figure 6 It is an enlarged view of part of the structure of the tank car in this embodiment.

[0028] The following are the descriptions of the reference numerals:

[0029] Vehicle body 10, tank body 20, hydraulic oil tank 30, box body 300, heat dissipation assembly 310, fin 311, oil inlet 301, oil outlet 302, partition 303, oil filter 304, liquid level gauge 305, air filter 306, drain plug 307, connecting piece 320, first connecting part 321, second connecting part 322, bolt fastener 323, arc groove 324, hydraulic pump 40, hydraulic motor 50, and liquid unloading pump 60. DETAILED DESCRIPTION

[0030] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0031] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the related art, it generally takes 1 to 2 hours to unload the liquid by driving the unloading pump with a hydraulic motor. Specifically, the hydraulic oil is stored in the hydraulic oil tank, flows to the hydraulic pump during operation, and is used to drive the hydraulic motor after being pressurized by the hydraulic pump. After the hydraulic motor drives the unloading pump to work, the hydraulic oil flows back to the hydraulic oil tank to form a hydraulic circuit, which takes a considerable amount of time. The long working cycle will cause the hydraulic oil to continue to heat up, thereby causing the working efficiency of the hydraulic circuit of the unloading pump to decrease, increasing mechanical wear, causing the hydraulic oil to deteriorate and affecting the service life of the tank truck. In order to solve this problem, the present application specifically proposes a hydraulic oil tank and a tank truck.

[0034] See also Figures 1 to 3 This embodiment provides a hydraulic oil tank 30 for providing hydraulic oil to the hydraulic circuit of the liquid unloading pump 60 of the tank truck, which includes a box body 300 and a heat dissipation assembly 310.

[0035] The box body 300 is the main structure of the hydraulic oil tank 30. A cavity for accommodating hydraulic oil is formed inside the box body 300. When not in operation, the hydraulic oil is stored in the cavity. When in operation, the hydraulic oil is drawn from the cavity to the hydraulic pump 40 for pressurization, and the hydraulic motor 50 drives the unloading pump 60, and the hydraulic oil flows back to the cavity, forming a hydraulic circuit that drives the unloading pump 60 to work.

[0036] In some embodiments, the box body 300 is provided with an oil inlet 301 and an oil outlet 302 communicating with the cavity, and the oil inlet 301 and the oil outlet 302 can be connected to the hydraulic circuit through an oil inlet pipe and an oil outlet pipe, respectively. It is understandable that the oil inlet 301 and the oil outlet 302 can be arranged at a relatively long distance, so that the hydraulic oil has a longer flow path in the cavity, the hydraulic oil has good fluidity, and the box body 300 has a better cooling effect on the hydraulic oil.

[0037] In some embodiments, a partition 303 is provided in the cavity, and the partition 303 is connected to the inner wall of the cavity to separate the cavity into two parts that are interconnected, and the oil inlet 301 and the oil outlet 302 are located on both sides of the partition 303. By providing the partition 303, the hydraulic oil flows in a circuitous manner in the cavity, and the oil inlet 301 and the oil outlet 302 are located on both sides of the partition 303, further increasing the flow path of the hydraulic oil. It can be understood that the oil inlet 301 and the oil outlet 302 are respectively located at both ends of the axial direction of the box body 300, so that the hydraulic oil flow path is the longest and the heat dissipation effect through the box body 300 is the best.

[0038] In some embodiments, the partition 303 may be located close to the midpoint of the cavity axis so that the two portions have approximately the same space.

[0039] In some embodiments, since various impurities are inevitably present in the hydraulic circuit, including mechanical impurities that remain in the hydraulic circuit after cleaning, such as water rust, casting sand, welding slag, iron filings, etc., as well as impurities that enter the hydraulic circuit from the outside, etc., an oil filter 304 for filtering the hydraulic oil is provided on the oil inlet 301 and the oil outlet 302. By setting the oil filter 304 to filter the hydraulic oil, various impurities can be prevented from being deposited in the box 300 and continuing to circulate in the hydraulic circuit with the hydraulic oil, thereby improving the service life of various components of the hydraulic circuit.

[0040] In some embodiments, a liquid level gauge 305 for observing the liquid level in the cavity is also provided on the box 300. The liquid level gauge 305 can be used to facilitate the operator to observe the liquid level in the cavity and understand the working condition of the hydraulic circuit. The liquid level gauge 305 can be a magnetic flap type liquid level gauge provided at one end of the box 300. The magnetic flap type liquid level gauge 305 is mainly used for medium level detection of various towers, tanks and spherical containers, etc., and has excellent reliability and corrosion resistance. When installed, the liquid level gauge 305 is provided in the vertical direction, and the upper and lower ends of the liquid level gauge 305 are connected to one end of the box 300 through a connecting flange.

[0041] In some embodiments, an oil filling hole is provided on the top of the box body 300, through which hydraulic oil can be injected into the cavity. An air filter 306 can be provided at the oil filling hole to filter the air, and when the hydraulic oil in the cavity is sucked, the pressure inside the cavity and the external environment can be balanced through the oil filling hole and the air filter 306.

[0042] In some embodiments, a drain outlet is provided at the bottom of the box body 300, and a drain plug 307 is provided at the drain outlet. The drain plug 307 is screwed to the drain outlet to open or close the drain outlet, so that when cleaning is needed, the drain outlet can be opened to discharge the hydraulic oil for easy cleaning. After cleaning, the drain outlet is closed by the drain plug 307.

[0043] In some embodiments, the heat dissipation assembly 310 includes a plurality of fins 311 for heat exchange with the air. The fins 311 are connected to the outer peripheral wall of the box body 300. The fins 311 extend along the axial direction of the box body 300. The plurality of fins 311 are spaced apart along the circumferential direction of the box body 300, so that the heat inside the box body 300 is conducted to the fins 311 through the fins 311. The plurality of fins 311 expand the contact area between the box body 300 and the air to increase the heat dissipation area of ​​the box body 300, thereby slowing down the heating process of the hydraulic oil in the box body 300, and ultimately ensuring the normal working efficiency of the hydraulic pump 40 and the liquid unloading pump 60 in the hydraulic circuit, reducing mechanical wear, and increasing the service life of the tank truck.

[0044] It is understandable that the fins 311 are made of metal to have good thermal conductivity, which is conducive to conducting the heat of the box 300. Among them, the fins 311 can be made of the same material as the box 300, such as stainless steel or aluminum. Among them, the fins 311 can be integrally formed with the outer peripheral wall of the box 300, or can be fixed to the outer peripheral wall of the box 300 by welding. The number of fins 311 should not be too many or too few. Too few will result in poor heat dissipation effect, and too many will increase the cost. In this embodiment, eight fins 311 are provided, and seven fins can also be provided.

[0045] This embodiment further provides a tank truck, comprising the above-mentioned hydraulic oil tank 30. The tank truck also includes a vehicle body 10 and a tank body 20.

[0046] Among them, the body 10 is the main part of the tank truck, which is mainly equipped with various components for the tank truck to move, such as the chassis, steering system, suspension system and braking system are arranged at the bottom of the body 10, and the drive system and cab are arranged on the front side of the body 10. The structural composition of the body 10 will not be repeated here.

[0047] The tank body 20 is a container for transporting various liquids by the tank truck, and the tank body 20 is arranged on the vehicle body 10 and supported and fixed by the vehicle body 10. The tank body 20 is a horizontal cylinder structure as a whole and is arranged along the length direction of the vehicle body 10.

[0048] In some embodiments, the box body 300 of the hydraulic oil tank 30 is suspended on the side of the tank body 20 through the connecting piece 320, and there is a certain distance between the hydraulic oil tank 30 and the tank body 20 to avoid direct heat conduction between the two. Therefore, the hydraulic oil tank 30 is fixed by the tank body 20 to avoid installation at the position between the front end of the tank body 20 and the cab, and there is a larger installation space. Since the tank truck has the hydraulic oil tank 30 described above, the tank truck also has the beneficial effects of the hydraulic oil tank 30, which will not be repeated here.

[0049] Continue to see Figure 4In some embodiments, a liquid unloading pump 60, a hydraulic motor 50 and a hydraulic pump 40 are provided on the tank truck. The liquid unloading pump 60, the hydraulic motor 50, the hydraulic pump 40 and the hydraulic oil tank 30 form a hydraulic circuit for hydraulically driving the liquid unloading pump 60 to unload liquid. Specifically, the oil outlet 302 of the hydraulic oil tank 30 is sucked into the hydraulic pump 40 through the oil outlet pipeline, and flows to the hydraulic motor 50 after being pressurized by the hydraulic pump 40. The hydraulic motor 50 drives the liquid unloading pump 60 to operate with the hydraulic oil. After the operation is completed, the hydraulic oil flows back to the oil inlet 301 through the oil inlet pipeline, and finally forms a hydraulic circuit.

[0050] In some embodiments, the box body 300 of the hydraulic oil tank 30 is a cylindrical structure, and the box body 300 extends along the length direction of the tank body 20. Furthermore, the box body 300 does not exceed the edge in the width direction of the vehicle body 10. The cylindrical box body 300 ensures the capacity of the hydraulic oil tank 30 and allows the box body 300 to be retracted to the side of the tank body 20, so that the box body 300 is inside the vehicle body 10, protecting the hydraulic oil tank 30 from collision or reducing damage in the event of rollover.

[0051] Continue to see Figure 5 and Figure 6 In some embodiments, the box body 300 is arranged below the horizontal center plane of the tank body 20, and the box body 300 is located above the vehicle body 10. Since the tank body 20 is a horizontal cylindrical structure, there is a certain space between the side of the tank body 20 and the vehicle body 10. The box body 300 is arranged below the horizontal center plane of the tank body 20, so that the box body 300 can be folded in the space, thereby ensuring that the box body 300 does not exceed the edge of the vehicle body 10.

[0052] In some embodiments, multiple fins 311 are located on the outer peripheral wall of the box body 300 facing the tank body 20, so that the fins 311 are located in the gap between the box body 300 and the tank body 20, avoiding the fins 311 being exposed on the side of the box body 300 facing away from the tank body 20 and being damaged by collision. If the fins 311 are set on the side of the box body 300 facing away from the tank body 20, since the fins 311 are relatively thin, they may cause harm to people in the event of an accident. By setting them on the side of the box body 300 facing the tank body 20, safety can be improved.

[0053] It is understandable that the multiple fins 311 are evenly spaced and arranged on the outer peripheral wall of the box body 300 facing the can body 20 , which is beneficial to improving the heat dissipation effect of the heat dissipation assembly 310 .

[0054] In some embodiments, the connecting member 320 includes a first connecting portion 321 and a second connecting portion 322 that are detachably connected. The first connecting portion 321 is fixedly connected to the side of the tank body 20, and the second connecting portion 322 is fixedly connected to the outer peripheral wall of the box body 300. By providing the detachable first connecting portion 321 and the second connecting portion 322, a detachable connection between the box body 300 and the tank body 20 is achieved, so that the hydraulic oil tank 30 can be removed separately when needed.

[0055] Specifically, the first connection part 321 is a plate-like structure vertically connected to the side of the tank body 20, and the second connection part 322 is a plate-like structure vertically connected to the outer peripheral wall of the box body 300. The first connection part 321 and the second connection part 322 are fitted together. The first connection part 321 and the second connection part 322 are provided with mounting holes at corresponding positions, and the first connection part 321 and the second connection part 322 are detachably connected by means of bolt fasteners 323 passing through corresponding mounting holes. The first connection part 321 and the second connection part 322 are connected by bolt fasteners 323, which is convenient for installation and disassembly, and the connection will be more secure.

[0056] It can be understood that a plurality of mounting holes are provided correspondingly between the first connection portion 321 and the second connection portion 322 so as to connect the two by a plurality of bolt fasteners 323 to improve the firmness of the connection.

[0057] In some embodiments, the second connection portion 322 has an arc groove 324 that matches the outer peripheral wall profile of the box body 300, and the box body 300 is snapped into the arc groove 324 of the second connection portion 322 to increase the contact area between the second connection portion 322 and the box body 300, thereby making the second connection portion 322 and the box body 300 more firmly connected. The box body 300 is fixedly connected to the groove wall of the arc groove 324, such as by welding, with a larger welding area and more firmly welded.

[0058] In some embodiments, a plurality of connectors 320 are arranged at intervals along the axis direction of the box body 300, thereby improving the connection strength between the box body 300 and the tank body 20. In this embodiment, three connectors 320 are evenly arranged along the axis direction of the box body 300.

[0059] In summary, in this embodiment, by providing fins 311 on the outer peripheral wall of the box body 300, the heat dissipation area between the box body 300 and the air can be increased, thereby slowing down the temperature rise process of the hydraulic oil in the cavity inside the box body 300, so as to ensure the normal operation of the hydraulic circuit of the unloading pump 60 and increase the service life of each component. In addition, by designing the box body 300 as a cylindrical structure and hanging it on the side of the box body 300, while ensuring the capacity of the hydraulic oil tank 30, the box body 300 can be folded to the side of the tank body 20, thereby protecting the hydraulic oil tank 30 from collision or reducing damage in the case of rollover, thereby improving the safety of the tank truck.

[0060] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In the description of this specification, the description with reference to the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A tank truck, characterized in that: include: Vehicle body; A tank body, arranged on the vehicle body; A hydraulic oil tank is used to provide hydraulic oil for the hydraulic circuit of the unloading pump of the tank truck, and the hydraulic oil tank includes: Box; A heat dissipation assembly, comprising a plurality of fins for heat exchange with air, wherein the fins are connected to the outer peripheral wall of the box body, the fins extend along the axial direction of the box body, and the plurality of fins are arranged at intervals along the circumference of the box body; Wherein, the box body of the hydraulic oil tank is suspended on the side of the tank body through a connecting piece, and the plurality of fins are located on the outer peripheral wall of the box body on a side facing the tank body.

2. The tanker according to claim 1, characterized in that: A cavity for accommodating hydraulic oil is formed inside the box body, and an oil inlet and an oil outlet connected to the cavity are provided on the box body. A partition is provided in the cavity, and the partition is connected to the inner wall of the cavity to divide the cavity into two parts connected to each other. The oil inlet and the oil outlet are located on both sides of the partition.

3. The tanker according to claim 2, characterized in that: The oil inlet and the oil outlet are both provided with oil filters for filtering the hydraulic oil; the box body is also provided with a liquid level meter for observing the liquid level height of the cavity.

4. The tank car according to claim 1, characterized in that: The box body is a cylindrical structure, and the box body extends along the length direction of the tank body, and the box body does not exceed the edge of the vehicle body in the width direction.

5. The tanker according to claim 4, characterized in that: The box body is arranged below the horizontal center plane of the tank body, and the box body is located above the vehicle body.

6. The tank car according to claim 1, characterized in that: The connecting member includes a first connecting portion and a second connecting portion that are detachably connected, the first connecting portion is fixedly connected to the side portion of the tank body, and the second connecting portion is fixedly connected to the outer peripheral wall of the box body.

7. The tank car according to claim 6, characterized in that: The first connection part is a plate-shaped structure vertically connected to the side of the tank body, and the second connection part is a plate-shaped structure vertically connected to the outer peripheral wall of the box body, and the first connection part and the second connection part are attached together; Mounting holes are provided at corresponding positions of the first connecting portion and the second connecting portion, and the first connecting portion and the second connecting portion are detachably connected by means of bolt fasteners passing through the corresponding mounting holes.

8. The tank car according to claim 7, characterized in that: The second connecting portion has an arc-shaped groove matched with the outer peripheral wall profile of the box body, and the box body is clamped in the arc-shaped groove of the second connecting portion and fixedly connected to the groove wall of the arc-shaped groove.

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