CN212427315U - Construction machine - Google Patents

Abstract

The utility model provides an engineering machine tool, it includes engine, fuel tank and oil tank, engineering machine tool includes: a chamber having a predetermined internal space and having one side opened; a cover member having an air suction port and covering an opening of the chamber; and an integrated cooling module provided inside the chamber such that one surface of the integrated cooling module faces the air intake port of the cover.

Description

Construction machine

Technical Field

The present invention relates to a construction machine, and more particularly, to a construction machine provided with a cooling device.

Background

A working machine generally refers to all machines used for civil engineering or construction work. In general, a construction machine includes an engine that supplies power by burning fuel and a hydraulic pump that operates by the power of the engine and discharges hydraulic oil, and drives various working devices and travels using the hydraulic oil discharged from the hydraulic pump.

The construction machine includes a cooling device for cooling water for cooling the engine and hydraulic oil discharged from the hydraulic pump and used in various working devices. As such a cooling device, a radiator (radiator), a cooler, or the like is used.

Further, since the cooling device is disposed in the engine room or a cooling device room provided separately, the internal space of such a room is reduced as the construction machine is miniaturized.

In this way, since it is difficult for a small construction machine to secure a space for mounting the cooling device, the arrangement state becomes complicated and it is necessary to add a fitting for fixing and arranging the cooling device in order to mount the cooling device in a limited space. Therefore, not only the installation cost of the cooling device increases, but also the maintenance and repair are complicated.

In addition, when the cooling device is installed in a narrow space, circulation of cooling air is not easily performed, and the cooling efficiency of the cooling device is also reduced.

Further, as the internal spaces of the engine room and the cooling device room decrease, a fuel tank storing fuel or a pipe supplying fuel is exposed to a high-temperature environment. Therefore, the temperature of the fuel supplied to the engine also rises, and thus a cooling device for reducing the temperature of the fuel is further required. Therefore, there is a problem in that the space in which the cooling device is to be disposed is reduced, and the overall structure of the cooling device is further increased.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a possess and all cool off cooling water, fuel and operating oil, can set up in the engineering machine tool of the comprehensive cooling module in narrow and small space easily again.

The above-mentioned utility model can be realized through following technical scheme.

According to the utility model discloses an embodiment provides an engineering machine tool, and it includes engine, fuel tank and oil tank, engineering machine tool includes: a chamber having a predetermined internal space and having one side opened; a cover member having an air suction port and covering an opening of the chamber; and an integrated cooling module provided inside the chamber such that one surface of the integrated cooling module faces the air intake port of the cover.

In the construction machine, the integrated cooling module is divided into a cooling water cooling unit, a fuel cooling unit, and an oil cooling unit that respectively cool different types of fluids.

Further, the construction machine further includes: a plurality of connection hoses connecting the integrated cooling module with the engine, the fuel tank, and the oil tank, respectively.

In the construction machine, the fuel cooling unit of the integrated cooling module is disposed between the cooling water cooling unit and the oil cooling unit.

In the construction machine, the cooling water cooling unit, the fuel cooling unit, and the oil cooling unit are each formed to be long in the vertical direction, and the cooling water cooling unit, the fuel cooling unit, and the oil cooling unit are arranged in the horizontal direction.

In addition, in the construction machine, in the integrated cooling module, an area occupied by the oil cooling part is larger than an area occupied by the fuel cooling part and is smaller than an area occupied by the cooling water cooling part.

In the construction machine, a partition wall that partitions the cooling water cooling unit, the fuel cooling unit, and the oil cooling unit of the integrated cooling module includes an insulator.

Further, in the construction machine, the integrated cooling module further includes: a cooling water inflow port and a cooling water discharge port which are provided in the cooling water cooling section; a fuel inflow port and a fuel discharge port provided in the fuel cooling portion; and an oil inflow port and an oil discharge port provided in the oil cooling portion.

Further, in the working machine, the cooling water inflow port, the cooling water discharge port, the fuel inflow port, the fuel discharge port, the oil inflow port, and the oil discharge port are provided on the other face of the integrated cooling module opposite to the one face.

Further, the construction machine further includes: and a cooling fan provided in the chamber so as to face another surface opposite to the one surface of the integrated cooling module.

In the construction machine, a distance between one surface of the integrated cooling module and the cover member is 4cm or less.

The utility model has the following effects.

According to the utility model discloses an embodiment, engineering machine tool can all carry out refrigerated comprehensive cooling module to cooling water, fuel and working oil and set up in narrow and small space easily.

Drawings

Fig. 1 is a diagram showing a construction machine according to an embodiment of the present invention.

Fig. 2 is a side view showing the inside of a chamber provided with a cooling device in a construction machine according to an embodiment of the present invention.

Fig. 3 is a front view showing the inside of a chamber provided with a cooling device in the construction machine of fig. 1.

Fig. 4 is a graph illustrating cooling efficiency of fuel in the working machine of fig. 1.

Description of the symbols

101: construction machine, 120: lower traveling structure, 130: upper convolution, 150: cab, 170: boom, 172: boom cylinder, 180: bucket arm, 182: bucket rod cylinder, 190: a bucket, 192: bucket cylinder, 300: chamber, 309: opening, 350: cover member, 359: air intake, 400: cooling fan, 500: integrated cooling module, 510: cooling water cooling unit, 511: cooling water inflow port, 519: cooling water discharge port, 520: fuel cooling portion, 521: fuel inflow port, 529: fuel discharge port, 530: oil cooling portion, 531: oil inflow port, 539: oil discharge port, 580: seal member, 600: a plurality of hoses, 700: a support member.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that those skilled in the art can easily implement the embodiments of the present invention. The invention can be implemented in numerous different ways and is not limited to the embodiments described herein.

It is noted that the drawings are diagrammatic and not to scale. Relative dimensions and proportions of parts shown in the figures have been shown exaggerated or reduced in size for the sake of clarity and convenience in the drawings, and any dimensions are exemplary only and not limiting. In addition, the same reference numerals are used for the same structures, elements, and components appearing in two or more drawings to show similar features.

Embodiments of the present invention specifically show desirable embodiments of the present invention. As a result, various modifications of the illustration are expected. Thus, embodiments are not limited to the particular manner of area illustrated, but, for example, also include variations of the manner in which the manufacture is effected.

A construction machine 101 according to an embodiment of the present invention will be described below with reference to fig. 1 to 3.

In the present description, a small excavator will be described as an example of the construction machine 101. However, the construction machine 101 is not limited to a small excavator, and the present invention can be applied to all construction machines having an engine, a fuel tank, a hydraulic pump, and a fuel tank, and having a limited space in a chamber in which the engine, the fuel tank, the hydraulic pump, and the fuel tank are accommodated.

As illustrated in fig. 1, a construction machine 101 according to an embodiment of the present invention may include a lower traveling structure 120, an upper turning structure 130 swingably mounted on the lower traveling structure 120, and a cab 150 and a working device provided in the upper turning structure 130.

The lower traveling structure 120 may support the upper swing structure 130 to be swingable, and travel by the traveling device using power generated by an engine provided in the upper swing structure 130. The lower traveling body 120 may be an endless track type traveling body including an endless track or a wheel type traveling body including traveling wheels.

The upper swing body 130 is rotatable on the lower traveling body 120 to set a working direction. An engine, a fuel tank, a hydraulic pump, a fuel tank, and the like may be provided in the upper swing body 130.

The cab 150 is provided above the upper swing body 130, and a driver gets on the cab 150 to operate the construction machine.

The work implement may include a boom 170, an arm 180, a bucket 190, and a driving device 172, 182, 192 for driving the boom 170, the arm 180, the bucket 190. For example, a boom cylinder 172 for controlling the operation of the boom 170 may be provided between the boom 170 and the upper swing body 130. Further, an arm cylinder 182 for controlling the operation of the arm 180 may be provided between the boom 170 and the arm 180, and a bucket cylinder 192 for controlling the operation of the bucket 190 may be provided between the arm 180 and the bucket 190.

As boom cylinder 172, arm cylinder 182, and bucket cylinder 192 extend or contract, boom 170, arm 180, and bucket 190 may perform various motions, and the work implement may perform various tasks. At this time, boom cylinder 200, arm cylinder 182, and bucket cylinder 192 are activated by hydraulic oil supplied from the hydraulic pump.

Further, as illustrated in fig. 2 and 3, the construction machine according to an embodiment of the present invention further includes a chamber 300, a cover 350, an integrated cooling module 500, a plurality of connection hoses 600, a cooling fan 400, and a support member 700.

The chamber 300 has a predetermined inner space and an opening 309 on one side. In addition, more than one chamber 300 may be provided in the upper rotating body 130. For example, the compartment 300 may include an engine compartment and a cooling device compartment. Further, an engine, a fuel tank, a hydraulic pump, a fuel tank, and the like may be provided inside the chamber 300. Engines, fuel tanks, hydraulic pumps and fuel tanks are well known to those skilled in the art.

The cover 350 has an air suction port 359 and covers the opening 309 of the chamber 300. That is, the cover 350 may be separably coupled to the chamber 300. By separating the cover 350, maintenance and repair of various devices disposed inside the chamber 300 can be performed. In addition, air for cooling may flow into the interior of the chamber 300 through the air suction port 359 of the cover 350.

The integrated cooling module 500 is provided inside the chamber 300 so that one surface thereof faces the air suction port 359 of the cover 350, and is divided into a cooling water cooling unit 510, a fuel cooling unit 520, and an oil cooling unit 530, which cool different types of fluids from each other. Also, for example, the integrated cooling module 500 may be a radiator.

Thus, the air flowing into the inside of the chamber 300 through the air suction port 359 of the cover 350 cools the cooling water for cooling the engine, the fuel supplied to the engine, and the working oil discharged from the hydraulic pump through the integrated cooling module 500.

Specifically, in the integrated cooling module 500, the area C occupied by the oil cooling part 530 may be larger than the area B occupied by the fuel cooling part 520 and smaller than the area a occupied by the cooling water cooling part 510. In fig. 3, the cooling water cooling unit 510, the fuel cooling unit 520, and the oil cooling unit 530 have the same length, and therefore the area and the width of each unit are proportional.

Here, since the temperature of the fuel is relatively lower than the temperature of the cooling water and the temperature of the working oil, the area of the fuel cooling portion 520 is set to be the minimum in consideration of the cooling efficiency.

In the integrated cooling module 500 as a whole, the ratio of the area occupied by the cooling water cooling unit 510, the fuel cooling unit 520, and the oil cooling unit 530 may vary depending on the type and the specification of the construction machine 101.

The cooling water cooling part 510, the fuel cooling part 520, and the oil cooling part 530 may be formed to be long in the vertical direction. The cooling water cooling unit 510, the fuel cooling unit 520, and the oil cooling unit 530 may be arranged in the left-right direction. That is, the fuel cooling part 520 of the integrated cooling module 500 may be disposed between the cooling water cooling part 510 and the oil cooling part 530.

In addition, since a portion of an edge or a portion of a corner in a face of the integrated cooling module 500 facing the air suction port 359 of the cover 350 is not exposed to the opening 309 of the chamber 300, a dead zone (dead zone) may occur, which is not reached by the air flowing into the air suction port 359 of the cover 350. For example, in fig. 3, a part of the corner of the oil cooling part 530 is not exposed to the opening 309 of the chamber 300 and is shielded. Therefore, if the fuel cooling portion 520 having the smallest relative area is disposed at a corner and a dead zone (dead zone) occurs, the fuel cooling portion 520 cannot achieve the intended purpose. That is, since the entire area of the fuel cooling part 520 is minimized, when the same area is blocked, the ratio of the blocked area with respect to the entire area is necessarily greater than the cooling water cooling part 510 or the oil cooling part 530. When a dead zone occurs after the fuel cooling portion 520 is disposed at the edge, a sudden drop in performance of the fuel cooling portion 520 may be caused. Therefore, in an embodiment of the present invention, the fuel cooling unit 520 having the smallest area is disposed at the center where the efficiency is the best.

Further, the integrated cooling module 500 may further include a partition wall 550 that partitions the cooling water cooling part 510, the fuel cooling part 520, and the oil cooling part 530, respectively and independently. In addition, the partition wall 550 may include an insulator. That is, the partition wall 550 may include a partition wall body and an insulator attached to the partition wall body, or the partition wall 550 may be formed as an insulator.

By forming the partition wall 550 of a material having a low thermal conductivity in this manner, it is possible to prevent thermal shock from occurring or the cooling efficiency of the fuel cooling unit 520 from being lowered due to the cooling water cooling unit 510 and the oil cooling unit 530 into which the cooling water and the hydraulic oil, which have relatively higher temperatures than the fuel flowing into the fuel cooling unit 520, respectively, flow.

In addition, the integrated cooling module 500 may further include a sealing member 580 for preventing leakage of cooling water, fuel, and operating oil. That is, the side surface of the integrated cooling module 500 adjacent to the surface facing the air intake port 359 is surrounded by the sealing member 580.

Furthermore, the integrated cooling module 500 may further include: a cooling water inflow port 511 and a cooling water discharge port 519 provided in the cooling water cooling unit 510; a fuel inflow port 521 and a fuel discharge port 529 provided in the fuel cooling unit 520; and an oil inflow port 531 and an oil discharge port 539 provided to the oil cooling portion 530.

In addition, the cooling water inflow port 511, the cooling water discharge port 519, the fuel inflow port 521, the fuel discharge port 529, the oil inflow port 531, and the oil discharge port 539 may be provided on the other side of the integrated cooling module 500 opposite to the one side of the integrated cooling module 500. Here, the other surface of the integrated cooling module 500 faces the cooling fan 400 to be described later. That is, the various ports 511, 519, 521, 529, 531, 539 of the integrated cooling module 500 are formed in the inner direction of the chamber 300. Accordingly, the connection hose 600 to be described later does not penetrate the sealing member 580, and therefore, the sealing performance of the sealing member 580 can be further improved. In addition, various ports 511, 519, 521, 529, 531, 539 and a plurality of connection hoses 600 can be easily connected.

Furthermore, in an embodiment of the present invention, the distance between one side of the integrated cooling module 500 and the cover 350 may be 4cm or less. However, when the interval between one side of the integrated cooling module 500 and the cover 350 is less than 1cm, the tolerance is out, and thus it may collide with the integrated cooling module 500 when the cover 350 is closed. In contrast, when the interval between one face of the integrated cooling module 500 and the cover 350 exceeds 4cm, the internal space of the chamber 300 may be unnecessarily wasted. That is, according to an embodiment of the present invention, even if the internal space of the chamber 300 is narrow, the integrated cooling module 500 that can cool all of the cooling water, the fuel, and the working oil can be effectively provided.

A plurality of connection hoses 600 connect the integrated cooling module 500 to the engine, the fuel tank, and the oil tank, respectively. Here, some of the plurality of connection hoses 600 circulate the cooling water between the cooling water cooling part 510 of the integrated cooling module 500 and the engine. Further, the fuel cooling portion 520 of the integrated cooling module 500 is connected to the fuel tank and the fuel injection device of the engine, respectively, at another portion of the plurality of connection hoses 600. Accordingly, the fuel stored in the fuel tank is cooled by the charge cooling unit 520 of the integrated cooling module 500 and then supplied to the engine. The remaining portion of the plurality of connection hoses 600 connects the oil cooling part 530 of the integrated cooling module 500 with the oil tank and the hydraulic pump, respectively. Accordingly, the fuel stored in the tank is cooled through the oil cooling part 530 of the integrated cooling module 500 and then supplied to the hydraulic pump.

For example, the plurality of connection hoses 600 may include: a cooling water hose connecting the cooling water cooling unit 510 of the integrated cooling module 500 and the engine; a fuel supply hose connecting the fuel cooling part 520 of the integrated cooling module 500, the fuel tank, and the engine; and an oil supply hose connecting the oil cooling part 530 of the integrated cooling module 500, the oil tank, and the hydraulic pump.

The support member 700 supports the integrated cooling module 500 inside the chamber 300 in a state where one surface of the integrated cooling module 500 faces the air suction port 359 of the cover 350. In this case, the support member 700 may be supported in a state where the cover 350 is opened so that the integrated cooling module 500 can be separated by the operator.

Cooling fan 400 is provided inside chamber 300 so as to face the other surface of integrated cooling module 500 opposite to the one surface of integrated cooling module 500. The cooling fan 400 circulates air inside the chamber 300 or provides a suction force for sucking air toward the air suction port 359 of the cover member 350. That is, the air drawn into the air suction port 359 of the cover 350 by the cooling fan 400 passes through the integrated cooling module 500 to cool the cooling water, the fuel, and the working oil.

With such a structure, the construction machine 101 according to an embodiment of the present invention can easily set the cooling module, which is integrated to cool the cooling water, the fuel, and the working oil, in a narrow space.

The fuel cooling effect of the integrated cooling module 500 used in the construction machine 101 according to an embodiment of the present invention is analyzed with reference to fig. 4.

As illustrated in fig. 4, the integrated cooling module 500 cools fuel stored in a fuel tank and supplied to an engine through a supply pump. In fig. 4, it is confirmed that the fuel cooling effect is exhibited in which the temperature of the fuel flowing into the engine is equivalent to the temperature difference of the fuel discharged from the supply pump. Further, it can be confirmed that the fuel discharged from the integrated cooling module 500 is cooled to a degree similar to the atmospheric temperature, or the temperature rises slightly in the process of moving to the engine.

Although the embodiments of the present invention have been described above with reference to the drawings, those skilled in the art will understand that the present invention can be implemented in other specific ways without changing the technical idea or essential features of the present invention.

Therefore, the above-described embodiments should be construed as illustrative in all aspects and not restrictive, the scope of the present invention being indicated by the claims to be described later, and all modifications or variations derived from the meaning, range and equivalent concept of the claims should be construed as falling within the scope of the present invention.

Claims (11)

1. A construction machine including an engine, a fuel tank, and a fuel tank, characterized by comprising:

a chamber having a predetermined internal space and having one side opened;

a cover member having an air suction port and covering an opening of the chamber; and

and an integrated cooling module provided inside the chamber such that one surface of the integrated cooling module faces the air inlet of the cover.

2. The work machine of claim 1,

the integrated cooling module is divided into a cooling water cooling unit, a fuel cooling unit, and an oil cooling unit, which cool different types of fluids.

3. The work machine of claim 2, further comprising:

a plurality of connection hoses connecting the integrated cooling module with the engine, the fuel tank, and the oil tank, respectively.

4. A working machine according to claim 2,

the fuel cooling portion of the integrated cooling module is disposed between the cooling water cooling portion and the oil cooling portion.

5. A working machine according to claim 2,

the cooling water cooling part, the fuel cooling part, and the oil cooling part are formed to be long in the vertical direction,

the cooling water cooling part, the fuel cooling part, and the oil cooling part are arranged in a left-right direction.

6. A working machine according to claim 2,

the integrated cooling module is characterized in that the area occupied by the oil cooling part is larger than that occupied by the fuel cooling part and smaller than that occupied by the cooling water cooling part.

7. A working machine according to claim 2,

the partition wall dividing the cooling water cooling part, the fuel cooling part, and the oil cooling part of the integrated cooling module includes an insulator.

8. A working machine according to claim 2,

the integrated cooling module further comprises:

a cooling water inflow port and a cooling water discharge port which are provided in the cooling water cooling section;

a fuel inflow port and a fuel discharge port provided in the fuel cooling portion; and

an oil inflow port and an oil discharge port provided in the oil cooling portion.

9. A working machine according to claim 8,

the cooling water inflow port, the cooling water discharge port, the fuel inflow port, the fuel discharge port, the oil inflow port, and the oil discharge port are disposed on the other side of the integrated cooling module opposite to the one side.

10. The work machine of claim 1, further comprising:

and a cooling fan provided in the chamber so as to face another surface opposite to the one surface of the integrated cooling module.

11. The work machine of claim 1,

the distance between one side of the integrated cooling module and the cover is less than 4 cm.

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