CN210733823U

CN210733823U - Power cabin and engineering vehicle

Info

Publication number: CN210733823U
Application number: CN201921682841.XU
Authority: CN
Inventors: 苏俊收; 王绍腾; 高磊磊
Original assignee: Jiangsu XCMG Construction Machinery Institute Co Ltd
Current assignee: Jiangsu XCMG Construction Machinery Institute Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-12
Anticipated expiration: 2029-10-10

Abstract

The present disclosure relates to a power pod comprising: a housing; the engine is arranged at the middle position of the bottom in the shell; the first cooling fan is arranged at the rear part of the shell, is driven by the engine and is used for ventilating and radiating heat for the engine; and the second cooling fan is arranged at the top of the shell, and the air inlet is over against the engine and is driven by a power source independent of the engine. The temperature of the power cabin can be effectively controlled, so that the engine, the hydraulic element and the electric element in the power cabin work in a reasonable temperature range all the time, and the engine and the hydraulic system in the power cabin can obtain longer service life and higher reliability.

Description

Power cabin and engineering vehicle

Technical Field

The utility model relates to an engineering machine tool field especially relates to a power compartment and engineering vehicle.

Background

The engineering machinery is an important device for building infrastructure engineering, and compared with an automobile, the engineering machinery generally has no windward side and is slow in running speed, so that the flow of air-cooled intake air is low, and the natural heat dissipation condition is poor. Furthermore, the heat source of the construction machine includes not only the engine but also high-power working components such as a transmission system and a hydraulic actuator, and therefore, more heat needs to be taken away by the cooling medium. In addition, the power cabin of the engineering machinery generally has small space and more pipelines, so that the layout of each functional structure is limited and the heat dissipation is difficult.

The working performance and reliability of the engineering machinery product are directly influenced by the overall thermal state of the product. The backpressure of the engine compartment (or called power compartment) is high, the hot air in the engine compartment cannot be smoothly discharged, and the power compartment is easily at a high temperature. At this time, if the heat is not dissipated, the normal operation of the engine, the hydraulic system and the like is affected, and particularly, when the temperature is high in summer, the chassis of the engine needs to be detached frequently for heat dissipation or maintenance. In addition, when the engine stops operating, the cooling fan driven by the engine also stops, heat in the power compartment is difficult to be discharged, and parts such as electrical components and rubber in the compartment are in an overheated environment for a long time, so that the service life is reduced. Therefore, how to effectively control the temperature of the power cabin makes the industry difficult problems to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present disclosure provides a power cabin and an engineering vehicle, which can effectively control the temperature of the power cabin, so that an engine, a hydraulic component and an electrical component in the power cabin always work in a reasonable temperature range, and thus both the engine and a hydraulic system in the power cabin can obtain a longer service life and higher reliability.

In one aspect of the present disclosure, there is provided a power pod comprising:

a housing;

the engine is arranged at the middle position of the bottom in the shell;

the first cooling fan is arranged at the rear part of the shell, is driven by the engine and is used for ventilating and radiating heat for the engine; and

and the second cooling fan is arranged at the top of the shell, and the air inlet is opposite to the engine and is driven by a power source independent of the engine.

In some embodiments, the power pod further comprises:

the air inlet pipe is arranged on the front side above the engine, and an air inlet is exposed out of the shell; and

the exhaust pipe is arranged on the rear side above the engine, and an exhaust port is exposed out of the shell;

wherein a position of the second cooling fan on the case is between the intake duct and the exhaust duct.

In some embodiments, the second cooling fan comprises:

the wind scooper is fixed on the shell through bolts;

the grille is horizontally arranged at the air outlet of the second cooling fan and is positioned on the inner side of the air guide cover; and

the fan blade is rotationally fixed in the air guide cover through the support.

In some embodiments, the grid comprises:

the air outlet channel is formed on each of two sides of each grid bar, and the grid bars are formed by bending at least once.

In some embodiments, the grille includes at least two bars parallel to each other, the at least two bars are bent once to form a first bending section and a second bending section, the first bending sections of the at least two bars are equidistantly disposed in the wind scooper in a direction perpendicular to the air outlet of the second cooling fan, and an included angle between the second bending section of the at least two bars and the first bending section is an obtuse angle.

In some embodiments, the second bends of the at least two grills are parallel to each other.

In some embodiments, the included angle between the second bending section of the at least two grid bars and the first bending section is an obtuse angle with different angles, and the included angle between the second bending section and the first bending section gradually increases from the edge to the center of the grid.

In some embodiments, the grid comprises a first area and a second area which are symmetrically distributed at the left side and the right side of the grid, and the second bending sections of the at least two grid strips in the first area or the second area are parallel to each other;

the included angle between the second bending section of the grid bar in the first area and the left side wall of the air guide cover is an acute angle, and the included angle between the second bending section of the grid bar in the second area and the right side wall of the air guide cover is an acute angle, so that the outlet air flow from the first area and the outlet air flow from the second area of the grid respectively have left or right component speeds.

In some embodiments, the power pod further comprises:

and the air outlet cover is arranged above the second cooling fan, and the air inlet corresponds to the air outlet of the second cooling fan and comprises a first air outlet and a second air outlet which respectively face the left side and the right side, so that air outlet air flows guided out by the first air outlet and the second air outlet respectively have upward left or upward right component speeds.

In some embodiments, the second cooling fan is driven by a power source to form a drive circuit for the second cooling fan, the power pod further comprising:

a temperature sensor for measuring a temperature within the housing; and

a controller for receiving the measured temperature of the temperature sensor and capable of controlling the driving circuit based on the measured temperature.

In some embodiments, the power pod further comprises:

the relay is used for controlling the on-off of the driving circuit;

wherein the controller is further configured to: the relay is turned on to turn on the driving circuit when the measured temperature is higher than a set temperature, and is turned off to turn off the driving circuit when the measured temperature is lower than the set temperature.

In some embodiments, the controller is configured to receive an operation command signal from the engine and to initiate control of the drive circuit when the operation command signal is directed to an engine-off condition.

In a further aspect of the present disclosure, there is provided a work vehicle comprising a power pod as described in any of the previous embodiments.

Therefore, according to the embodiments of the present disclosure, at least the following advantageous technical effects can be achieved:

the heat in the power cabin can be effectively discharged out of the cabin, and the cooling function of the power cabin structure is better realized; the mode that the fan driven by the independent power source is adopted to actively suck heat from the power cabin solves the problem of ventilation and cooling of the power cabin, particularly the problem of cooling under the condition that an engine is stalled, so that the heat source and other parts can be ensured to work at a limited working temperature; the temperature of the power cabin is accurately controlled, cooling power is saved, and meanwhile, an engine, a hydraulic element and an electric element in the power cabin work in a reasonable temperature range all the time, so that the engine and a hydraulic system in the power cabin can have longer service life and higher reliability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:

FIG. 1 is a schematic cross-sectional angle view of a work vehicle (including a power pod) according to some embodiments of the present disclosure;

FIG. 2 is a schematic perspective view of a work vehicle (including a power pod) according to some embodiments of the present disclosure;

FIG. 3 is a schematic perspective view of a second cooling fan in a power pod, according to some embodiments of the present disclosure;

FIG. 4 is a schematic cross-sectional angle view of a second cooling fan in a power pod, according to some embodiments of the present disclosure.

In the figure:

1. the air conditioner comprises a shell, 2, an engine, 3, a first cooling fan, 4, a second cooling fan, 41, an air guide cover, 42, a grid, 421, grid bars, 421a, a first bending section, 421b, a second bending section, 43, fan blades, 5, an air inlet pipe, 6 and an air outlet pipe.

It should be understood that the dimensions of the various parts shown in the figures are not drawn to scale. Further, the same or similar reference numerals denote the same or similar components.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

As shown in FIGS. 1-4:

a housing 1;

an engine 2 mounted at a middle position of a bottom portion in the case 1;

a first cooling fan 3 mounted at the rear of the housing 1, driven by the engine 2, and used for ventilating and radiating heat to the engine 2; and

and the second cooling fan 4 is arranged at the top of the shell 1, and an air inlet of the second cooling fan is opposite to the engine 2 and is driven by a power source independent of the engine 2.

The first cooling fan 3 can take power from the engine 2 during the operation of the power compartment to ventilate and dissipate heat of the engine 2, thereby reducing the temperature in the power compartment. When the engine 2 is turned off or stops operating, the second cooling fan 4 may be driven by an independent power source to continue ventilating and dissipating heat from the engine 2. Therefore, the first cooling fan 3 and the second cooling fan 4 can cool the engine 2 uninterruptedly, and particularly when the engineering machinery or the engineering vehicle stops running and the first cooling fan 3 stops working, the second cooling fan 4 can continue working to discharge heat in the power compartment, so that the power compartment is cooled as soon as possible, and hydraulic components and electric components in the power compartment are protected.

And, aiming at the not good condition of the radiating condition of the power compartment, the first cooling fan 3 can also run synchronously with the second cooling fan 4, thereby increasing the power for radiating the power compartment, and better coping with the problems of the slow running speed of the engineering machinery or the engineering vehicle and the insufficient cold air flow caused by the small windward side.

Further, in some embodiments, the power pod further comprises:

an intake pipe 5 installed at a front side above the engine 2 and having an intake port exposed to the casing 1; and

an exhaust pipe 6 mounted on the rear side above the engine 2 and having an exhaust port exposed to the housing 1;

wherein the second cooling fan 4 is located between the intake duct 5 and the exhaust duct 6 on the housing 1.

Because the engine 2, the hydraulic system, the transmission system and other components need to be arranged in the power compartment, and the structure is compact, so the air inlet pipe 5 and the exhaust pipe 6 are respectively arranged at the front side and the rear side of the second cooling fan 4, the space in the power compartment can be fully utilized, and the air inlet pipe 5, the exhaust pipe 6 and the second cooling fan 4 can be prevented from interfering with each other through the height difference and the front-rear distance difference of the air inlet pipe 5, the exhaust pipe 6 and the second cooling fan 4, namely, the air flow with higher temperature flowing out of the second cooling fan 4 and the waste gas discharged from the exhaust pipe 6 are prevented from directly entering the air inlet pipe 5.

Further, in some embodiments, the second cooling fan 4 includes:

an air guide cover 41 fixed to the casing 1 by bolts;

a grille 42 horizontally arranged at the air outlet of the second cooling fan 4 and located inside the air guiding cover 41; and

and the fan blades 43 are rotatably fixed in the air guiding cover 41 through a support.

The fan blades 43 can provide power for sucking the gas in the power cabin out of the power cabin, so that air inlet air at two sides of the power cabin is formed, smooth air circulation is achieved by the air outlet of the second cooling fan 4, and heat of the engine 2 is taken away in the air circulation process. The grille 42 and the wind scooper 41 are used to guide the air flowing out from the fan blades 43, so that the air with higher temperature can flow out of the power compartment along a set path.

It should be noted that, when the position and orientation of the second cooling fan 4 are set, the temperature of the airflow discharged from the second cooling fan 4 is high in consideration of the air circulation for cooling the power compartment, so that the second cooling fan 4 is arranged above the power compartment, and the grille 42 is correspondingly set to be horizontal, so that the low density of the hot exhaust airflow can be fully utilized, the airflow flowing speed is increased by the second cooling fan 4 in accordance with the upward spontaneous movement of the hot air, and the exhaust airflow is guided by the wind scoops 41 and the grille 42 to flow out of the power compartment as soon as possible.

Further, in order to reduce the noise emitted from the second cooling fan 4 by the nacelle, in some embodiments, the grille 42 includes:

at least one grid 421, each of the two sides of each grid 421 forms an air outlet channel, and the grid 421 is formed by bending at least once.

The air outlet channel formed by the grid bars 421 and the adjacent grid bars 421 is matched with the grid bars 421 with a primary bending shape, so that noise in the power cabin can be blocked by wall reflection in the channel under the condition of not influencing the exhaust airflow.

Further, in order to improve the noise blocking effect in the power compartment and make the flow of the exhaust airflow as smooth as possible, in some embodiments, the grille 42 includes at least two parallel grille strips 421, the at least two grille strips 421 are bent once to form a first bending section and a second bending section, the first bending sections of the at least two grille strips 421 are equidistantly disposed in the air guiding cover 41 in a direction perpendicular to the air outlet of the second cooling fan 4, and an included angle between the second bending section of the at least two grille strips 421 and the first bending section is an obtuse angle.

The first bending section is perpendicular to the air outlet of the second cooling fan 4, so that effective blocking of noise can be formed, and the noise of the power cabin is reduced to the greatest extent; and an obtuse angle is formed between the second bending section 421b and the first bending section 421a, so that the speed direction change angle of the discharged airflow passing through the grid 421 in front and at the back can be reduced, the speed of the airflow is prevented from being remarkably reduced under the blocking of the grid 421, and the smooth circulation of the air inside and outside the power cabin is further maintained.

Further, in order to reduce the processing difficulty and the processing cost of the grid 42, in some embodiments, the second bent sections of the at least two grid bars 421 are parallel to each other.

Further, in order to further reduce the influence of the grills 421 on the exhaust airflow, in some embodiments, the included angles between the second bent sections of the at least two grills 421 and the first bent sections are obtuse angles with different angles, and the included angles between the second bent sections and the first bent sections are gradually increased from the edge to the center of the grille 42.

Further, in some embodiments, the grid 42 includes a first area and a second area symmetrically distributed on the left and right sides of the grid 42, and the second bending sections 421b of the at least two grid bars 421 in the first area or the second area are parallel to each other;

an included angle between the second bending section 421b of the grid 421 in the first area and the left side wall of the air guiding cover 41 is an acute angle, and an included angle between the second bending section 421b of the grid 421 in the second area and the right side wall of the air guiding cover 41 is an acute angle, so that the outlet airflows from the first area and the second area of the grid 42 respectively have a component velocity in the left direction or the right direction.

By providing the grille 42 to have two regions having different directional component velocities, respectively, it is possible to make the air flow discharged from the second cooling fan 4 have a component velocity to the left or right, so that the discharged air flow having a higher temperature is discharged obliquely upward from both sides of the power compartment, forming its own air circulation at both the left and right sides of the power compartment. In addition, the air circulation ring formed by the second cooling fan 4 on the two sides of the power compartment can also prevent the airflow discharged by the second cooling fan 4 from directly flowing to the air inlet of the air inlet pipe 5 or the air outlet of the exhaust pipe 6, so as to avoid blocking or interfering the air circulation of the engine 2 above the power compartment.

Further, in order to guide the exhaust airflow from the second cooling fan 4, in some embodiments, the power pod further includes:

and the air outlet cover is arranged above the second cooling fan 4, and the air inlet corresponds to the air outlet of the second cooling fan 4 and comprises a first air outlet and a second air outlet which respectively face the left side and the right side, so that air outlet air flows guided out of the first air outlet and the second air outlet respectively have upward-left or upward-right component speeds.

Further, in order to intelligently control the heat dissipation of the power pod, in some embodiments, the second cooling fan 4 is driven by a power source to form a driving circuit for the second cooling fan 4, and the power pod further includes:

a temperature sensor for measuring the temperature inside the housing 1;

a controller for receiving a measured temperature of the temperature sensor and capable of controlling the driving circuit based on the measured temperature; and

the relay is used for controlling the on-off of the driving circuit;

Specifically, the control part of the second cooling fan 4 is composed of a controller and a relay, the controller contains a temperature parameter control program, the data of the temperature sensor is connected to the controller through a serial port, the controller analyzes the temperature data, the load unit mainly refers to a power cabin, and the electronic fan is an execution element of the dynamic system and is also a controlled object of the system. The controller judges the received real-time temperature signal, when the temperature is higher than a threshold value, the controller sends a control instruction to the relay, the relay receives the control signal of the controller, the opening state of the electronic fan is determined according to the control instruction of the controller, the controller feeds back the control signal according to the temperature, and when the temperature is lower than the threshold value, the electronic fan is closed, so that the active control of the temperature of the power cabin is realized.

Further, in order to turn on the second cooling fan 4 only when the engine 2 stops operating, in some embodiments, the controller may be configured to receive an operation command signal of the engine 2 and turn on the control of the driving circuit when the operation command signal indicates an operation condition where the engine 2 stops operating.

In another aspect of the present disclosure, a power pod temperature control step is provided, comprising:

in the working state of the engine 2 in the power compartment, the engine 2 drives the first cooling fan 3 to ventilate and radiate; and

in a state where the engine 2 is stopped, the second cooling fan 4 is driven by the power supply to perform ventilation.

In some embodiments, the controlling step further comprises:

measuring the temperature in the power compartment;

turning on the second cooling fan 4 when the measured temperature is higher than the set temperature; and

the second cooling fan 4 is switched off when the measured temperature is lower than the set temperature.

Therefore, according to the embodiment of the disclosure, the heat in the power cabin can be effectively discharged out of the power cabin, and the cooling function of the power cabin structure can be better realized; the mode that the fan driven by the independent power source is adopted to actively suck heat from the power cabin solves the problem of ventilation and cooling of the power cabin, particularly the problem of cooling under the condition that the engine 2 is flamed out, so that the heat source and other parts are ensured to work at the limited working temperature; the temperature of the power cabin is accurately controlled, the power for cooling is saved, and meanwhile, the engine 2, the hydraulic element and the electric element in the power cabin always work in a reasonable temperature range, so that the engine 2 and the hydraulic system in the power cabin can have longer service life and higher reliability.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A power pod, comprising:

a housing;

the engine is arranged at the middle position of the bottom in the shell;

2. The power pod of claim 1 further comprising:

3. The power pod of claim 1 wherein the second cooling fan comprises:

the wind scooper is fixed on the shell through bolts;

the fan blade is rotationally fixed in the air guide cover through the support.

4. The power pod of claim 3 wherein the grille comprises:

5. The power cabin according to claim 4, wherein the grille includes at least two parallel grills, the at least two grills are bent once to form a first bent section and a second bent section, the first bent sections of the at least two grills are equidistantly arranged in the wind scooper in a direction perpendicular to the outlet of the second cooling fan, and an included angle between the second bent sections of the at least two grills and the first bent section is an obtuse angle.

6. The power pod of claim 5 wherein the second bends of the at least two grills are parallel to each other.

7. The power pod of claim 5 wherein the included angle between the second bend section of the at least two grills and the first bend section is an obtuse angle with different angles, and the included angle between the second bend section and the first bend section increases gradually from the edge to the center of the grille.

8. The power pod of claim 5 wherein the grille comprises a first region and a second region symmetrically disposed on the left and right sides of the grille, the second bent sections of the at least two grills in the first region or the second region being parallel to each other;

9. The power pod of claim 2 further comprising:

10. The power pod of claim 1 wherein the second cooling fan is driven by a power source to form a drive circuit for the second cooling fan, the power pod further comprising:

a temperature sensor for measuring a temperature within the housing; and

11. The power pod of claim 10 further comprising:

the relay is used for controlling the on-off of the driving circuit;

12. The power pod of claim 11 wherein the controller is configured to receive an operation command signal from the engine and initiate control of the drive circuit when the operation command signal is directed to an engine-off condition.

13. A work vehicle comprising a power pod as claimed in any one of claims 1-12.