阅读说明：本技术 油箱和工程设备 (Oil tank and engineering equipment ) 是由 席亚兵 盖巍巍 廉浩 于 2020-07-23 设计创作，主要内容包括：本发明提供了一种油箱和工程设备,油箱包括箱体和盖板；箱体的外壁上设置有向箱体内部凹陷的凹槽；盖板盖合于凹槽上,与箱体围设出两端开口的冷却水路。向冷却水路内通入冷却水后,冷却水与高温液压油进行热交换,以降低液压油的温度,减少因液压油粘度过低而导致的泄漏,保证了泵的容积效率和整个液压系统的工作效率。由于冷却水路内的冷却水可降低油箱内液压油的温度,减小密封件因高温液压油导致的老化速度,进而延长密封件的使用寿命,以确保液压系统的正常工作。(The invention provides an oil tank and engineering equipment, wherein the oil tank comprises a tank body and a cover plate; the outer wall of the box body is provided with a groove which is sunken towards the interior of the box body; the cover plate covers the groove and encloses a cooling water path with two open ends with the box body. After cooling water is introduced into the cooling water channel, the cooling water and high-temperature hydraulic oil are subjected to heat exchange to reduce the temperature of the hydraulic oil, reduce leakage caused by too low viscosity of the hydraulic oil, and ensure the volumetric efficiency of the pump and the working efficiency of the whole hydraulic system. Because the cooling water in the cooling water path can reduce the temperature of the hydraulic oil in the oil tank, the aging speed of the sealing element caused by the high-temperature hydraulic oil is reduced, and the service life of the sealing element is further prolonged, so that the normal work of a hydraulic system is ensured.)

1. A fuel tank, comprising:

the box body is provided with a groove sunken into the box body on the outer wall;

and the cover plate covers the groove and encloses a cooling water path with two open ends with the box body.

2. A fuel tank according to claim 1, further comprising:

the first pipe joint is arranged on the box body and communicated with one end of the cooling water path;

and the second pipe joint is arranged on the box body and communicated with the other end of the cooling water channel.

3. Fuel tank according to claim 1,

the cooling water path comprises a plurality of cooling sections, any one of the cooling sections extends along a first direction, and the cooling sections are arranged in parallel along a second direction and are sequentially connected end to end;

wherein one of the first direction and the second direction is a length direction of the case, and the other direction is a width or height direction of the case.

4. A fuel tank according to claim 1, further comprising:

the first radiating fins are connected with the box body and arranged on the outer wall of the box body in parallel.

5. A fuel tank according to claim 1, further comprising:

the first partition plate is arranged in the box body;

the second partition plate is arranged in the box body and is arranged in parallel with the first partition plate;

the first partition board is provided with a first notch, the first notch is located on one side of the box body, the second partition board is provided with a second notch, and the second notch is located on the other side opposite to the first notch.

6. Fuel tank according to claim 5,

the number of the first partition plates is multiple, the number of the second partition plates is multiple, and the first partition plates and the second partition plates are alternately arranged.

7. A fuel tank according to claim 1, further comprising:

the cover body covers the opening of the box body so as to open or close the box body;

and the second radiating fins are arranged on the outer wall of the cover body in parallel.

8. The fuel tank of claim 1, wherein the tank body includes an oil intake and an oil return, the fuel tank further comprising:

the oil suction filter is connected with the box body and arranged at the oil suction port to filter the hydraulic oil flowing out of the box body;

the oil absorption temperature sensor is arranged on the oil absorption filter to detect the temperature of the hydraulic oil flowing out of the box body;

the oil return filter is connected with the box body and arranged at the oil return opening to filter the hydraulic oil entering the box body;

and the oil return temperature sensor is arranged on the oil return filter to detect the temperature of the hydraulic oil entering the box body.

9. The fuel tank of claim 8, further comprising at least one cooler, the at least one cooler comprising:

a body;

the first pipeline is arranged on the body in a penetrating mode and connected with the oil return filter;

the second pipeline is arranged on the body in a penetrating mode and connected with the cooling water channel;

wherein the first pipeline exchanges heat with the second pipeline through the body.

10. A working device, characterized by comprising a tank according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of oil tank cooling, in particular to an oil tank and engineering equipment.

Background

At present, in the related art, when the heading machine works, the hydraulic system causes the temperature of hydraulic oil in the hydraulic system to rise due to work, and when the temperature of the hydraulic oil is too high, the viscosity of the hydraulic oil is reduced, the leakage is increased, and the volumetric efficiency of a pump and the efficiency of the whole system are further influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, the invention proposes, in a first aspect, a tank.

The invention provides engineering equipment in a second aspect.

In view of the above, the first aspect of the present invention provides a fuel tank, which includes a tank body and a cover plate; the outer wall of the box body is provided with a groove which is sunken towards the interior of the box body; the cover plate covers the groove and encloses a cooling water path with two open ends with the box body.

According to the oil tank provided by the invention, the bottom of the tank body is provided with the groove towards the direction of the interior of the tank body, and the shape of the cooling water path is reserved in the groove and is used for paving the cooling water path. And be provided with the apron, the apron lid fits on the recess for the apron can enclose out the cooling water route with the box, and cooling water route both ends opening can make the cooling water circulate in the cooling water route. After cooling water is introduced into the cooling water channel, the cooling water and high-temperature hydraulic oil are subjected to heat exchange to reduce the temperature of the hydraulic oil, so that the viscosity of the hydraulic oil is in a suitable working range, leakage caused by too low viscosity of the hydraulic oil is reduced, and the volumetric efficiency of the pump and the working efficiency of the whole hydraulic system are guaranteed. Because the cooling water in the cooling water path can reduce the temperature of the hydraulic oil in the oil tank, the aging speed of the sealing element caused by the high-temperature hydraulic oil is reduced, and the service life of the sealing element is further prolonged, so that the normal work of a hydraulic system is ensured.

The cooling water channel is arranged on the outer wall of the box body, the cooling water channel is not limited by the external environment, extra space does not need to be occupied, and the size of the oil tank is reduced.

When the engineering equipment works, cooling water is always introduced into the cooling water channel, or when the temperature of the hydraulic oil in the box body is higher, the cooling water is introduced into the cooling water channel.

The recess can set up on the diapire of oil tank, also can set up on the lateral wall of oil tank, and the apron is the strip, extends along the recess to make apron and recess looks adaptation.

In addition, the oil tank in the above technical solution provided by the present invention may further have the following additional technical features:

in one technical scheme of the invention, the oil tank further comprises a first pipe joint and a second pipe joint, wherein the first pipe joint is arranged on the tank body and communicated with one end of the cooling water path; the second pipe joint is arranged on the box body and communicated with the other end of the cooling water path.

In the technical scheme, a first pipe joint is arranged on the box body and communicated with one end of the cooling water path, a second pipe joint is arranged on the box body and communicated with the other end of the cooling water path, one pipe joint of the first pipe joint and the second pipe joint is used for water inlet, and the other pipe joint is used for water outlet so as to ensure the circulation of cooling water in the cooling water path.

In one technical scheme of the invention, the cooling water path comprises a plurality of cooling sections, any one of the cooling sections extends along a first direction, and the cooling sections are arranged in parallel along a second direction and are sequentially connected end to end; wherein one of the first direction and the second direction is a length direction of the case, and the other direction is a width or height direction of the case.

In this technical scheme, adopt the mode of machining at the bottom half, the cooling water route is processed out according to the size of bottom half, the cooling water route is provided with a plurality of cooling sections, it is concrete, a plurality of cooling sections end to end formation in proper order have the snakelike range of certain density, when cooling water flows in the cooling water route through advancing the coupling, can flow from the delivery port through the cooling section of snakelike range, cooling water has formed snakelike flow in the cooling water route, the flow line of cooling water has been increased, and then the area of contact of cooling water with hydraulic oil has been increased, the cooling effect of cooling water has been promoted.

In one technical scheme of the invention, the oil tank further comprises a plurality of first radiating fins, and the plurality of first radiating fins are connected with the tank body and arranged on the outer wall of the tank body in parallel.

In this technical scheme, there are a plurality of first fin on the side panel of box, increased the heat radiating area of oil tank, promote the radiating rate of oil tank self. A plurality of first fin sets up side by side on the outer wall of box, is convenient for the processing of fin.

The first radiating fins are arranged in parallel and have certain density and height, the radiating area can be increased to about 2 times of the original radiating area, and the radiating power of the oil tank can be increased to 2 times of the original radiating power in the same proportion.

The plurality of first radiating fins are plate-fin radiating fins, and the appearance of the plurality of first radiating fins follows the appearance of the side panel, so that the attractive appearance and the elegance of the oil tank are guaranteed.

The first radiating fin is welded on the box body.

In one technical scheme of the invention, the oil tank further comprises a first partition plate and a second partition plate, wherein the first partition plate is arranged in the tank body; the second partition board is arranged in the box body and is arranged in parallel with the first partition board; the first partition board is provided with a first notch, the first notch is located on one side of the box body, the second partition board is provided with a second notch, and the second notch is located on the other side opposite to the first notch.

In this technical scheme, be provided with first baffle and second baffle in the box, wherein, one side that first baffle is located the bottom half is provided with first breach, and one side that the second baffle is located the bottom half is provided with the second breach, and the staggered arrangement of first baffle and second baffle separates a plurality of spaces and forms an oil circuit in the oil tank with the box for hydraulic oil carries out snakelike flow in the oil tank, has extended the flow path of hydraulic oil in the oil tank, further promotes the radiating effect of hydraulic oil. Meanwhile, the third notch is formed in the upper portion of the first partition plate, the fourth notch is formed in the upper portion of the second partition plate, air in the space partitioned by the first partition plate and the space partitioned by the second partition plate can circulate mutually, and air pressure balance of each partitioned space is guaranteed.

And an air filter is arranged on the box body at the upper part of the clapboard, the inner space of the box body is communicated with the outer space of the box body through the air filter so as to ensure the balance of the air pressure inside and outside the box body, and the air filter provides clean air for the box body, thereby preventing the box body from sucking the air with foreign particles and increasing the probability of abrasion and damage.

In one technical scheme of the invention, the number of the first partition plates is multiple, the number of the second partition plates is multiple, and the first partition plates and the second partition plates are alternately arranged.

In this technical scheme, first baffle and second baffle all are provided with a plurality ofly to a plurality of first baffles and a plurality of second baffle alternate arrangement divide into more partition space with the oil tank, have further prolonged the flow path of hydraulic oil in the oil tank, the snakelike flow path of hydraulic oil in the oil tank, make the hydraulic oil heat dissipation more abundant, further promote the radiating effect of hydraulic oil. In one technical scheme of the invention, the oil tank further comprises a cover body, and the cover body covers the opening of the tank body so as to open or close the tank body.

In the technical scheme, the cover body is circular and can cover the opening of the box body to open or close the box body, so that an operator can conveniently supplement hydraulic oil into the box body. The second radiating fins with strip specifications are arranged on the outer surface of the cover body and used for further increasing the radiating area of the oil tank, and after the cover body is arranged on the oil tank, the second radiating fins of the cover body are arranged to be consistent with the first radiating fins on the side faces of the oil tank in the vertical direction, so that the radiating power of the oil tank is improved, and the overall coordination and attractiveness of the oil tank are guaranteed.

In one technical scheme of the invention, the box body comprises an oil suction port, an oil return port, an oil suction filter, an oil suction temperature sensor, an oil return filter and an oil return temperature sensor; the oil suction filter is connected with the box body and arranged at the oil suction port to filter the hydraulic oil flowing out of the box body; the oil absorption temperature sensor is arranged on the oil absorption filter to detect the temperature of the hydraulic oil flowing out of the box body; the oil return filter is connected with the box body and arranged at the oil return opening to filter the hydraulic oil entering the box body; the oil return temperature sensor is arranged on the oil return filter to detect the temperature of the hydraulic oil entering the box body.

In the technical scheme, the oil suction port is arranged on the box body on one side of the first pipe joint, the oil return port is arranged on the box body on the other side relative to the oil suction port, and hydraulic oil flows into the box body from the oil return port and flows out of the box body from the oil suction port. Under first coupling is used for into under the condition of water, cooling water flows into the cooling water route from first coupling, and cooling water is provided with oil return opening one side through a plurality of cooling section flow direction boxes, and the cooling water is flowed out the box by the second coupling again, and the flow direction of cooling water is opposite with the flow direction of hydraulic oil, has promoted the cooling effect of cooling water.

The oil return filter is arranged at the oil return port and connected with the box body and used for filtering hydraulic oil entering the box body, the oil suction filter is arranged at the oil suction port and connected with the box body and used for filtering hydraulic oil flowing out of the box body, and the filters are arranged at the oil return port and the oil outlet, so that the cleanliness of the hydraulic oil flowing into the oil tank and sucked out of the oil tank is ensured, and the abrasion and damage probability of a hydraulic system is reduced. The oil return filter is provided with an oil return temperature sensor for detecting the temperature of the hydraulic oil entering the box body, the oil suction filter is provided with an oil suction temperature sensor for detecting the temperature of the hydraulic oil flowing out of the box body, the oil suction temperature sensor and the oil return temperature sensor feed back signals to a Programmable Logic Controller (PLC) after detecting the temperature of the hydraulic oil, the PLC is used for judging whether the temperature of the hydraulic oil flowing out of the box body and the temperature of the hydraulic oil flowing into the box body are too high, and meanwhile, a liquid temperature liquid level meter is arranged on one side of the oil tank provided with the first cooling fins and used for displaying the current temperature and position of the hydraulic oil in the box body, so that a user can clearly see the state of the hydraulic oil in the.

In one aspect of the present invention, the oil tank further comprises at least one cooler, the at least one cooler comprising a body; the first pipeline is arranged on the body in a penetrating way and connected with the oil return filter; the second pipeline is arranged on the body in a penetrating way and is connected with the cooling water path; wherein the first pipeline exchanges heat with the second pipeline through the body.

In this technical scheme, at least one cooler has integrateed on the box, and the first pipeline of cooler is worn to locate on the cooler to pass through hose connection with the oil return filter, and the second pipeline is worn to locate on the cooler, and passes through hose connection with the cooling water route, and first pipeline and second pipeline all pass through third coupling and hose connection. The first pipeline and the second pipeline carry out heat exchange in the cooler, and the hydraulic oil that will flow into in the oil tank box carries out cooling treatment once earlier, has increased the radiating power of oil tank.

Simultaneously can add a plurality of coolers outward, a plurality of coolers are placed side by side to a plurality of coolers are linked together, and to the high temperature hydraulic oil heat dissipation that will flow into the oil tank simultaneously, further increased the heat dissipation power of oil tank, satisfied the entry driving machine heat dissipation requirement of different models. And elastic rubber sheets are arranged among the coolers to prevent the coolers from being extruded mutually to form hard damage. The steel plate strips with the U-shaped structures are used for fixing the coolers on the bottom plate through the first bolts, and then the coolers are connected onto the welding blocks on the box body through the second bolts, so that the coolers are integrated on the box body, the space of the heading machine equipment is saved, the high integration of the oil tank is increased, and the heading machine is guaranteed to work in a more complex environment or under a more complex working condition.

A second aspect of the invention proposes an engineering plant. The oil tank provided by any one of the first technical scheme of the invention is provided, so that the engineering equipment has all the beneficial effects of the oil tank provided by any one of the above technical scheme, and the details are not repeated herein.

The engineering equipment is provided with a working oil cylinder or a hydraulic motor, an oil inlet of the working oil cylinder or the hydraulic motor is connected with an oil suction port of the box body, and an oil outlet of the working oil cylinder or the hydraulic motor is connected with an oil return port of the box body.

The engineering equipment comprises a heading machine, an excavator, a crane and a crane.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

figure 1 shows a schematic view of one direction of a fuel tank according to one embodiment of the invention;

figure 2 shows an exploded view of a fuel tank according to an embodiment of the invention;

figure 3 shows an exploded view of a fuel tank according to another embodiment of the invention;

FIG. 4 shows a schematic view of one orientation of a case according to one embodiment of the invention;

FIG. 5 shows a schematic view of another orientation of a case according to an embodiment of the invention;

FIG. 6 shows a schematic view of another orientation of a fuel tank according to an embodiment of the invention;

FIG. 7 shows a schematic view of a cover according to an embodiment of the invention;

FIG. 8 shows a schematic diagram of a chiller according to an embodiment of the invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

10 box body, 20 cooling water channel, 204 cover plate, 206 cooling section, 30 first pipe joint, 40 second pipe joint, 50 first radiating fin, 60 first clapboard, 602 first notch, 604 third notch, 70 second clapboard, 702 second notch, 704 fourth notch, 80 cover body, 90 second radiating fin, 100 oil suction port, 102 oil suction filter, 104 oil suction temperature sensor, 110 oil return port, 112 oil return filter, 114 oil return temperature sensor, 120 liquid temperature liquid level meter, 130 cooler, 131 body, 132 first pipeline, 134 second pipeline, 136 third pipe joint, 138 elastic rubber sheet, 140 steel plate strip, 150 bottom plate, 152 first bolt, 154 second bolt and 160 air cleaner.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The fuel tank and the engineering equipment according to some embodiments of the present invention are described below with reference to fig. 1 to 8.

In one embodiment of the present invention, as shown in fig. 1 and 2, there is provided a fuel tank comprising a tank body 10 and a cover plate 204; a groove which is sunken towards the interior of the box body 10 is arranged on the outer wall of the box body 10; the cover plate 204 covers the groove and encloses the box body 10 to form a cooling water path 20 with two open ends.

The oil tank provided by the invention is characterized in that a groove is arranged at the bottom of the tank body 10 towards the direction of the inside of the tank body 10, and the shape of a cooling water path 20 is reserved in the groove and is used for laying the cooling water path 20. And a cover plate 204 is arranged, the cover plate 204 covers the groove, so that the cover plate 204 and the box body 10 can enclose the cooling water path 20, and the two ends of the cooling water path 20 are opened, so that cooling water can circulate in the cooling water path 20. After cooling water is introduced into the cooling water path 20, the cooling water exchanges heat with high-temperature hydraulic oil to reduce the temperature of the hydraulic oil, so that the viscosity of the hydraulic oil is in a suitable working range, leakage caused by too low viscosity of the hydraulic oil is reduced, and the volumetric efficiency of the pump and the working efficiency of the whole hydraulic system are ensured. The cooling water in the cooling water path 20 can reduce the temperature of the hydraulic oil in the oil tank, reduce the aging speed of the sealing element caused by the high-temperature hydraulic oil, and further prolong the service life of the sealing element so as to ensure the normal operation of the hydraulic system.

Through set up cooling water route 20 at the outer wall of box 10, cooling water route 20 does not receive the restriction of external environment, also need not to occupy extra space, and then has reduced the volume of oil tank.

When the engineering equipment works, cooling water is always introduced into the cooling water path 20, or when the temperature of the hydraulic oil in the box body 10 is high, cooling water is introduced into the cooling water path 20.

The groove can be arranged on the bottom wall of the oil tank, and also can be arranged on the side wall of the oil tank, and the cover plate 204 is strip-shaped and extends along the groove, so that the cover plate 204 is matched with the groove.

In one embodiment of the present invention, as shown in fig. 1, the oil tank further includes a first pipe joint 30 and a second pipe joint 40, the first pipe joint 30 is mounted on the tank body 10 and is communicated with one end of the cooling water path 20; the second pipe joint 40 is attached to the case 10 and communicates with the other end of the cooling water path 20.

In this embodiment, a first pipe joint 30 is provided on the case 10 to communicate with one end of the cooling water path 20, and a second pipe joint 40 is provided to communicate with the other end of the cooling water path 20, wherein one of the first pipe joint 30 and the second pipe joint 40 is used for water inlet, and the other pipe joint is used for water outlet to ensure the circulation of cooling water in the cooling water path 20.

In an embodiment of the present invention, as shown in fig. 2 and 3, the cooling water path 20 includes a plurality of cooling sections 206, any cooling section 206 of the plurality of cooling sections 206 extends along a first direction, and the plurality of cooling sections 206 are arranged side by side along a second direction and are sequentially connected end to end; wherein one of the first direction and the second direction is a length direction of the cabinet 10, and the other direction is a width or height direction of the cabinet 10.

In this embodiment, adopt the mode of machining in the bottom of box 10, cooling water route 20 is processed out according to the size of box 10 bottom, cooling water route 20 is provided with a plurality of cooling sections 206, it is concrete, a plurality of cooling sections 206 form the snakelike range that has certain density end to end in proper order, when cooling water flows into cooling water route 20 through advancing the coupling, can flow from the delivery port through snakelike cooling section 206 who arranges, cooling water has formed snakelike flow in cooling water route 20, the flow line of cooling water has been increased, and then the area of contact of cooling water with hydraulic oil has been increased, the cooling effect of cooling water has been promoted.

In one embodiment of the present invention, as shown in fig. 1 to 4, the oil tank further includes a plurality of first cooling fins 50, and the plurality of first cooling fins 50 are connected to the tank body 10 and arranged in parallel on an outer wall of the tank body 10.

In this embodiment, the side panel of the box 10 has a plurality of first heat dissipation fins 50, which increases the heat dissipation area of the fuel tank and increases the heat dissipation rate of the fuel tank itself. The plurality of first heat dissipation fins 50 are disposed in parallel on the outer wall of the case 10, facilitating the processing of the heat dissipation fins.

The plurality of first heat dissipation fins 50 are arranged in parallel and have a certain density and height, the heat dissipation area can be increased to about 2 times of the original area, and the heat dissipation power of the oil tank can be increased to 2 times of the original power in the same proportion.

The first radiating fins 50 are plate-fin radiating fins, and the appearance of the first radiating fins 50 follows the appearance of the side panel, so that the attractive appearance and the elegance of the oil tank are guaranteed. The first fin 50 is welded to the case 10.

In one embodiment of the present invention, as shown in fig. 5, the fuel tank further includes a first partition 60 and a second partition 70, the first partition 60 being disposed in the tank body 10; the second partition plate 70 is disposed in the case 10 in parallel with the first partition plate 60; the first partition 60 is provided with a first notch 602, the first notch 602 is located at one side of the box 10, the second partition 70 is provided with a second notch 702, and the second notch 702 is located at the other side opposite to the first notch 602.

In this embodiment, a first partition plate 60 and a second partition plate 70 are disposed in the tank 10, wherein a first notch 602 is disposed on one side of the first partition plate 60 located at the bottom of the tank 10, a second notch 702 is disposed on one side of the second partition plate 70 located at the bottom of the tank 10, and the staggered arrangement of the first partition plate 60 and the second partition plate 70 divides the tank 10 into a plurality of spaces and forms an oil path in the oil tank, so that hydraulic oil flows in a serpentine shape in the oil tank, a flow line of the hydraulic oil in the oil tank is extended, and a heat dissipation effect of the hydraulic oil is further improved. Meanwhile, the third notch 604 is formed in the upper portion of the first partition 60, and the fourth notch 704 is formed in the upper portion of the second partition 70, so that air in the space partitioned by the first partition 60 and the second partition 70 can circulate, and air pressure balance of each partitioned space is guaranteed.

And an air cleaner 160 is provided on the case 10 at the upper portion of the partition, the inner space of the case 10 is communicated with the outer space of the case 10 through the air cleaner 160 to ensure the balance of the air pressure inside and outside the case 10, and the air cleaner 160 provides clean air to the case 10 to prevent the case 10 from sucking air with foreign particles to increase the probability of abrasion and damage.

In one embodiment of the present invention, as shown in fig. 5, the first barrier 60 is plurally provided, the second barrier 70 is plurally provided, and the first barrier 60 and the second barrier 70 are alternately provided.

In this embodiment, the first partition plates 60 and the second partition plates 70 are provided in plurality, and the first partition plates 60 and the second partition plates 70 are alternately arranged to divide the oil tank into more partition spaces, so that the flow path of the hydraulic oil in the oil tank is further extended, and the serpentine flow path of the hydraulic oil in the oil tank makes the heat dissipation of the hydraulic oil more sufficient, so as to further improve the heat dissipation effect of the hydraulic oil.

In one embodiment of the present invention, as shown in fig. 4 and 7, the fuel tank further includes a cover 80, and the cover 80 covers the opening of the tank body 10 to open or close the tank body 10.

In this embodiment, the cover 80 is circular and can cover the opening of the tank 10 to open or close the tank 10, so that an operator can supplement hydraulic oil into the tank 10. The second radiating fins 90 with strip specifications are arranged on the outer surface of the cover body 80 and used for further increasing the radiating area of the oil tank, and after the cover body 80 is arranged on the oil tank, the second radiating fins 90 of the cover body 80 are arranged to be consistent with the first radiating fins 50 on the side face of the oil tank in the vertical direction, so that the radiating power of the oil tank is improved, and the overall coordination and attractiveness of the oil tank are guaranteed.

In one embodiment of the present invention, as shown in fig. 4 to 6, the tank 10 includes an oil suction port 100, an oil return port 110, an oil suction filter 102, an oil suction temperature sensor 104, an oil return filter 112, and an oil return temperature sensor 114; the oil suction filter 102 is connected to the tank 10 and disposed at the oil suction port 100 to filter the hydraulic oil flowing out of the tank 10; an oil suction temperature sensor 104 is provided on the oil suction filter 102 to detect the temperature of the hydraulic oil flowing out of the tank 10; the oil return filter 112 is connected with the tank 10 and disposed at the oil return port 110 to filter the hydraulic oil entering the tank 10; a return oil temperature sensor 114 is provided on the return oil filter 112 to detect the temperature of the hydraulic oil entering the tank 10.

In this embodiment, the oil suction opening 100 is provided in the housing 10 on one side of the first pipe joint 30, and the oil return opening 110 is provided in the housing 10 on the other side with respect to the oil suction opening 100, wherein the hydraulic oil flows into the housing 10 from the oil return opening 110 and flows out of the housing 10 from the oil suction opening 100. When the first pipe joint 30 is used for water inlet, cooling water flows into the cooling water channel 20 from the first pipe joint 30, flows to the side of the tank body 10 provided with the oil return opening 110 through the plurality of cooling sections 206, and finally flows out of the tank body 10 from the second pipe joint 40 arranged on the same side as the oil suction opening 100, wherein the flow direction of the cooling water is opposite to the flow direction of hydraulic oil, so that the contact path of the cooling water and the hydraulic oil is further prolonged, and the cooling effect of the cooling water is improved.

The oil return filter 112 is arranged at the oil return opening 110, the oil return filter 112 is connected with the box body 10 and used for filtering hydraulic oil entering the box body 10, the oil suction filter 102 is arranged at the oil suction opening 100, the oil suction filter 102 is connected with the box body 10 and used for filtering hydraulic oil flowing out of the box body 10, the cleanliness of the hydraulic oil flowing into the oil tank and sucked out of the oil tank is guaranteed by arranging the filters at the oil return opening 110 and an oil outlet, and the abrasion and damage probability of a hydraulic system is reduced. And there is a return oil temperature sensor 114 on the return oil filter 112 for detecting the temperature of the hydraulic oil entering the tank 10, there is an oil suction temperature sensor 104 on the oil suction filter 102 for detecting the temperature of the hydraulic oil flowing out of the tank 10, after the oil suction temperature sensor 104 and the return oil temperature sensor 114 detect the temperature of the hydraulic oil, the signals are fed back to a PLC (programmable logic controller) for judging whether the temperature of the hydraulic oil flowing out and into the tank 10 is too high, and there is a liquid temperature level meter 120 on one side of the oil tank with the first heat sink 50 for displaying the current temperature and position of the hydraulic oil in the tank 10, so that the user can clearly see the state of the hydraulic oil in the tank 10.

In one embodiment of the invention, as shown in fig. 8, the tank further comprises at least one cooler 130, the at least one cooler 130 comprising a body 131; the first pipeline 132 is disposed on the body 131 and connected to the oil return filter 112; the second pipeline 134 is arranged on the body 131 in a penetrating way and connected with the cooling water channel 20; wherein the first pipeline 132 exchanges heat with the second pipeline 134 through the body 131.

In this embodiment, at least one cooler 130 is integrated with the tank 10, a first pipeline 132 of the cooler 130 is disposed through the cooler 130 and connected to the return oil filter 112 through a hose, a second pipeline 134 is disposed through the cooler 130 and connected to the cooling water path 20 through a hose, and the first pipeline 132 and the second pipeline 134 are both connected to a hose through a third pipe joint 136. The first pipeline 132 and the second pipeline 134 exchange heat in the cooler 130, so that the hydraulic oil which is about to flow into the oil tank body 10 is firstly cooled once, and the heat dissipation power of the oil tank is increased.

Meanwhile, the plurality of coolers 130 can be hung externally, the plurality of coolers 130 are arranged side by side, the plurality of coolers 130 are communicated, and meanwhile, the heat dissipation power of the oil tank is further increased by dissipating the heat of the high-temperature hydraulic oil to be flowed into the oil tank, so that the heat dissipation requirements of different types of heading machines are met. An elastic rubber sheet 138 is disposed between the coolers 130 to prevent the coolers 130 from being pressed against each other to cause hard damage. The steel plate strips 140 with the U-shaped structures are used for fixing the coolers 130 on the bottom plate 150 through the first bolts 152, and then the coolers 130 are connected to the welding blocks on the box body 10 through the second bolts 154, so that the coolers 130 are integrated on the box body 10, the space of the heading machine equipment is saved, the high integration of an oil tank is increased, and the heading machine is guaranteed to work in a more complex environment or working condition.

A second aspect of the invention proposes an engineering plant. The oil tank provided by any embodiment of the first aspect of the present invention is provided, so that the engineering equipment has all the advantages of the oil tank provided by any embodiment, and details are not described herein.

The engineering equipment is provided with a working oil cylinder or a hydraulic motor, an oil inlet of the working oil cylinder or the hydraulic motor is connected with an oil suction port 100 of the box body, and an oil outlet of the working oil cylinder or the hydraulic motor is connected with an oil return port 110 of the box body.

The engineering equipment comprises a heading machine, an excavator, a crane and a crane.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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