WO2017215433A4 - 车辆动力舱及具有其的工程车辆 - Google Patents

车辆动力舱及具有其的工程车辆 Download PDF

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Publication number
WO2017215433A4
WO2017215433A4 PCT/CN2017/086121 CN2017086121W WO2017215433A4 WO 2017215433 A4 WO2017215433 A4 WO 2017215433A4 CN 2017086121 W CN2017086121 W CN 2017086121W WO 2017215433 A4 WO2017215433 A4 WO 2017215433A4
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WO
WIPO (PCT)
Prior art keywords
vehicle power
air
power module
air inlet
muffler
Prior art date
Application number
PCT/CN2017/086121
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English (en)
French (fr)
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WO2017215433A1 (zh
Inventor
赵斌
耿彦波
王欢
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徐工集团工程机械有限公司
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Filing date
Publication date
Application filed by 徐工集团工程机械有限公司 filed Critical 徐工集团工程机械有限公司
Priority to BR112018013481-3A priority Critical patent/BR112018013481A2/pt
Priority to US16/067,280 priority patent/US10472776B2/en
Publication of WO2017215433A1 publication Critical patent/WO2017215433A1/zh
Publication of WO2017215433A4 publication Critical patent/WO2017215433A4/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/08—Air inlets for cooling; Shutters or blinds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0891—Lids or bonnets or doors or details thereof
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/411—Bulldozers, Graders
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/536—Hoods

Definitions

  • the present invention relates to the field of construction machinery, and in particular to a vehicle power cabin and an engineering vehicle having the same.
  • Noise is the third largest source of pollution after water and air pollution.
  • building construction noise is in the first place, and construction noise is mainly caused by the application of a large number of construction machinery.
  • the road roller is an important tool for engineering construction. Its main function is to compact the roadbed and pavement mixture. It has been widely used in railway laying, urban expansion, foundation pavement compaction, port construction, hydropower generation and resource exploitation. . With the recognition of the green environmental protection concept and the progress of the society, the laws and regulations related to noise limitation have become increasingly strict and perfect, and the noise level has become an important indicator that affects the sales of road roller products and measures the quality of products.
  • the power cabin structure is an important component that affects the thermal balance of the vehicle, beautiful appearance, sound insulation and noise reduction. It is one of the key tasks in the design of engineering machinery products.
  • FIG. 1 is a schematic structural view of a power cabin of a prior art road roller
  • FIG. 2 is a structural schematic view showing an air inlet of a power cabin of a prior art road roller of the prior art
  • FIG. 3 shows a prior art. Schematic diagram of the internal structure of the power cabin of the roller.
  • a prior art road roller includes a frame 3, an engine 8 mounted on the frame 3, a hood 2 housed on the engine 8, and a cab 1 located in front of the engine 8.
  • the roller further includes a radiator 5 and a cooling fan for directing air to the radiator 5, and the radiator 5, the cooling fan, and the engine 8 are sequentially disposed in the longitudinal direction of the roller.
  • the cooling fan is driven by the engine.
  • the first side of the radiator 5 is provided with a first air inlet 6 and a second air inlet 7 in the vertical direction.
  • An air outlet 4 is provided at the rear of the hood 2. The air introduced by the first air inlet 6 and the second air inlet 7 exchanges heat with the radiator 5, and then flows to the air outlet 4 through both sides of the engine 8.
  • the first air inlet 6 and the second air inlet 7 are substantially flush with the radiator 5 in the longitudinal direction of the vehicle, and the air flowing to the radiator 5 is apt to generate eddy current due to steering, resulting in an increase in noise. Further, the noise generated by the engine is also radiated from the first air inlet, the second air inlet, and the air outlet 4, so that the noise of the prior art road roller is severe.
  • the present invention is directed to an engineering vehicle having a vehicle power module having the same to improve the noise of a construction vehicle existing in the prior art.
  • a vehicle power cabin including a cabin and a radiator disposed in the cabin, a cooling fan for driving air to flow through the radiator, and an engine for driving the cooling fan to rotate, the cabin
  • the utility model comprises an air inlet for introducing air exchanged with the radiator and an air outlet for outputting the heat exchanged air, the air inlet comprises a first air inlet, a second air inlet, a first air inlet, a radiator and a cooling fan Arranged in sequence in the longitudinal direction of the vehicle, the first air inlet is spaced apart from the heat sink in the longitudinal direction.
  • the air outlet and the first air inlet are arranged in a longitudinal direction.
  • the first air inlet is arranged at the bottom of the cabin
  • a first muffler is disposed at the first air inlet.
  • the first silencer comprises a louver silencer.
  • the air inlet further includes a second air inlet disposed on a side wall of the cabin.
  • a second muffler is disposed at the second air inlet.
  • the second muffler comprises a Helmholtz silencer.
  • a third muffler disposed in the cabin is further included to reduce noise of a specific frequency generated by the air flowing from the air inlet to the air outlet.
  • the third silencer comprises a quarter wave tube.
  • a fourth muffler disposed at the air outlet is further included.
  • the fourth muffler comprises a casing and a sound absorbing material disposed in the casing, and the casing is provided with a vent hole.
  • a flow guiding member for guiding the heat exchanged air to the air outlet is further included.
  • the flow guiding component comprises a fifth silencer.
  • the vehicle power cabin further includes a frame for carrying the engine
  • the fifth muffler includes a muffler cavity
  • the muffler cavity is surrounded by a cavity including a perforated plate and a frame obliquely disposed at a corner of the frame, and the perforation A sound absorbing material is disposed on a side of the plate facing the cavity.
  • the vehicle power pod includes a first baffle for isolating the cab and a compartment for housing the engine.
  • the first baffle has an inverted convex shape, and a side of the first baffle facing the cabin is covered with a sound absorbing material.
  • the cabin is closed.
  • the inner wall of the compartment is provided with sound absorbing material in whole or in part.
  • an engineering vehicle comprising the above described vehicle power compartment.
  • the first air inlet, the radiator and the cooling fan are sequentially arranged in the longitudinal direction of the vehicle, and the first air inlet is spaced apart from the heat sink in the longitudinal direction, so that the air can smoothly flow to the radiator, effectively It avoids eddy currents during the flow of air, thus reducing noise.
  • Figure 1 is a schematic view showing the structure of a prior art construction vehicle
  • FIG. 2 is a schematic structural view of an air inlet of a power cabin of a prior art vehicle
  • Figure 3 is a schematic view showing the structure of the interior of the power cabin of the prior art vehicle
  • FIG. 4 is a schematic structural view of an engineering vehicle according to an embodiment of the present invention.
  • Figure 5 is a schematic view showing the layout of various components of a vehicle power cabin of an embodiment of the present invention.
  • Figure 6 is a schematic view showing the structure of the interior of a vehicle power cabin of an embodiment of the present invention.
  • Figure 7 is a schematic view showing the structure of the air inlet of the vehicle power compartment of the embodiment of the present invention.
  • Figure 8 is a block diagram showing the structure of a Helmholtz muffler of a vehicle power module of an embodiment of the present invention.
  • Figure 9 is an exploded view of a cabin of a vehicle power cabin of an embodiment of the present invention.
  • Figure 10 is a block diagram showing the structure of a third muffler at the air outlet of the vehicle power compartment of the embodiment of the present invention.
  • Figure 11 is a schematic view showing the structure of the muffler chamber of the tail portion of the vehicle power compartment of the embodiment of the present invention.
  • FIG. 4 is a schematic structural view of the construction vehicle of the present embodiment
  • FIG. 5 is a layout view of the components of the vehicle power compartment of the present embodiment
  • FIG. 6 is a view showing the interior of the vehicle power compartment of the embodiment. Schematic.
  • the construction vehicle of the present embodiment includes a frame 4, an engine 14 mounted on the frame 4, and a cab 1 disposed in front of the engine 14.
  • the engine 14 is disposed in a cabin for placing the engine 14, and a radiator 8 and a cooling fan 15 for driving air to flow through the radiator 8 are provided, and the cooling fan 15 is driven by the engine 14.
  • the cabin includes an air inlet for introducing air exchanged with the radiator 8 and an air outlet 3 for outputting heat exchanged air.
  • the air inlet includes a first air inlet 9, a second air inlet 6, and a first air inlet 9.
  • the radiator 8 and the cooling fan 15 are sequentially arranged in the longitudinal direction of the vehicle, and the first air inlet 9 and the radiator 8 are longitudinally spaced to allow air to smoothly flow to the radiator 8, effectively avoiding the process of air flow. Eddy currents are generated to reduce noise.
  • the air can smoothly flow to the heat sink 8 to ensure that sufficient air is exchanged with the heat sink 8, and the heat dissipation efficiency of the heat sink 8 is improved.
  • the vehicle power compartment further includes a first baffle 5 for isolating the cab 1 and a cabin for accommodating the engine 14.
  • the first baffle 5 has an inverted convex shape.
  • one side of the first baffle 5 facing the cabin is covered with a sound absorbing material.
  • the cabin of this embodiment includes a hood 2, a second baffle 16 and a third baffle 17 disposed on both sides of the engine.
  • the hood 2, the first baffle 5, the second baffle 16, and the third baffle 17 form a closed compartment to reduce noise propagating to the exterior of the cabin.
  • the inner wall of the compartment is fully or partially covered with sound absorbing material.
  • the second baffle 16 and the third baffle 17 are pasted with a sound absorbing material.
  • the first air inlet 9, the radiator 8, the cooling fan 15, the engine 14 and the air outlet 3 are arranged in the longitudinal direction of the vehicle, and the air introduced by the first air inlet 9 passes through the heat exchange with the radiator 8 to pass through.
  • Engine The gap between the 14 and the inner wall of the compartment flows to the air outlet 3.
  • the air can move in the longitudinal direction of the vehicle in the cabin, so that the flow of the air is smooth, and thus the noise generated during the operation of the vehicle is reduced. Further, the heat dissipation efficiency of the heat sink 8 is improved.
  • Fig. 7 is a view showing the structure of the air inlet of the vehicle power compartment of the embodiment.
  • the first air inlet 9 is provided at the bottom of the cabin.
  • the first air inlet 9 and the radiator 8 are spaced in the longitudinal direction of the vehicle, so that the air can smoothly flow to the radiator 8, To reduce the chance of eddy currents during air flow.
  • a first muffler is disposed at the first air inlet 9 to reduce noise radiated from the cabin to the outside.
  • the first silencer comprises a louver silencer.
  • the louver silencer includes a plurality of blades arranged side by side.
  • the blade is coated with a layer of sound absorbing material for reducing noise.
  • the layer of sound absorbing material has a thickness of from 2 mm to 10 mm.
  • the cross section of the blade is V-shaped, and preferably the V-angle is between 120° and 150°.
  • the above-mentioned sound absorbing material layer is attached to the inner side of the blade.
  • the air inlet further includes a second air inlet 6 disposed on a side wall of the cabin.
  • the second air inlet 6 is located at an upper portion of the side wall of the cabin.
  • a second muffler is disposed at the second air inlet 6.
  • the second silencer comprises a Helmholtz silencer.
  • Fig. 8 is a view showing the structure of the Helmholtz muffler of this embodiment.
  • the Helmholtz silencer consists of a triangular prismatic silencer chamber.
  • Fig. 9 is an exploded view showing the vehicle power compartment of the embodiment.
  • the vehicle power cabin further includes a third muffler 10 disposed in the cabin, and the third muffler 10 is for reducing noise of a specific frequency generated by the air flowing from the air inlet to the air outlet 3.
  • the third muffler 10 includes a quarter-wavelength tube.
  • the quarter-wave tube is curved.
  • the quarter-wave tube has a length of 0.5 to 1.5 meters.
  • the inlet of the quarter-wave tube is disposed on the side of the cooling fan 15 that faces away from the heat sink 8.
  • quarter-wave tubes There are two quarter-wave tubes, and two quarter-wave tubes are located on either side of the engine 14.
  • a quarter-wave tube is mounted on the side wall of the compartment.
  • the vehicle power cabin further includes a fourth muffler 12 disposed at the air outlet 3 for reducing noise radiated to the outside of the cabin through the air outlet 3.
  • Fig. 10 is a view showing the structure of the fourth muffler 12 of the present embodiment.
  • the third muffler 12 includes a housing 121 and a sound absorbing material disposed in the housing 121.
  • the inner and outer sides of the housing 121 are provided with sound absorbing materials material.
  • the housing 121 includes two side walls disposed opposite each other and a partition 122 connected between the two side walls for reinforcing the strength of the housing 121 to guide the air flowing out of the power compartment.
  • the housing 121 faces downward, and the side wall is provided with a plurality of holes 123.
  • the housing 121 also includes two openings that respectively face the two side walls of the chamber.
  • a grill 11 is further disposed on the air outlet 3.
  • the vehicle power compartment further includes a flow guiding member 13 for guiding the heat exchanged air to the air outlet.
  • the flow guiding member 13, the hood 2 and the air outlet 3 form a U-shaped air outlet structure to reduce the eddy current generated when the air flows, and further reduce the wind resistance.
  • the flow guiding member includes a fifth muffler.
  • the fifth muffler includes a muffler cavity, and the muffler cavity is composed of a perforated plate 18, a sound absorbing material 19, a cavity 20, and a frame 4.
  • the vehicle power compartment further includes a frame 4 for carrying the engine 14, the fifth muffler including a muffler cavity, the muffler cavity being surrounded by a perforated plate 18 disposed obliquely at a corner of the frame 4 and a frame 20 A sound absorbing material 19 is disposed on a side of the perforated plate 18 facing the cavity 20.
  • an engineering vehicle having the above-described vehicle power compartment.
  • Construction vehicles include road rollers.

Abstract

一种车辆动力舱及具有其的工程车辆。车辆动力舱包括舱室以及设置在舱室内的散热器(8)、用于驱动空气流经散热器(8)的冷却风扇(15)和驱动冷却风扇(15)转动的发动机(14)，舱室包括用于引入与散热器(8)换热的空气的进风口和用于输出换热后的空气的出风口(3)，进风口包括第一进风口(9)、第二进风口(6)，第一进风口(9)、散热器(8)和冷却风扇(15)在车辆的纵向上依次布置，第一进风口(9)与散热器(8)在纵向上间隔设置。第一进风口(9)、散热器(8)和冷却风扇(15)在车辆的纵向上依次布置，以使空气能够顺畅的流向散热器(8)，有效地避免了空气流动的过程中产生涡流，从而降低噪音。

Description

车辆动力舱及具有其的工程车辆 技术领域
本发明涉及工程机械领域，具体而言，涉及一种车辆动力舱及具有其的工程车辆。
背景技术
噪声是仅次于水和空气污染的第三大污染源，在各种噪声源中，建筑施工噪声处于首位，而建筑施工噪声主要是由于大量工程机械的应用产生的。压路机是工程施工的重要工具，主要功能为压实路基及路面铺装混合物料，它在铁路铺设、城市扩建、地基路面压实、港口兴建、水力发电、资源开采等方面得到了非常广泛的应用。随着绿色环保理念的认同和社会的进步，噪声限制相关法律法规日益严格和完善，噪声水平已成为影响压路机产品销售、衡量产品质量的一个重要指标。
动力舱结构是影响整车热平衡、外形美观、隔声降噪等功能效果的重要部件，是工程机械产品设计的重点工作之一。
图1示出了现有技术的压路机的动力舱的结构示意图，图2示出了现有技术的现有技术的压路机的动力舱的进风口处的结构示意图，图3示出了现有技术的压路机的动力舱的内部结构示意图。
结合图1至3所示，现有技术的压路机包括车架3、安装在车架3上发动机8、罩设在发动机8上的发动机罩2和位于发动机8的前方的驾驶室1。
压路机还包括散热器5和用于将空气引向散热器5的冷却风扇，散热器5、冷却风扇和发动机8在压路机的纵向上依次布置。其中冷却风扇由发动机驱动。散热器5的两侧均设置有沿竖向第一进风口6和第二进风口7。发动机罩2的后部设置有出风口4。由第一进风口6和第二进风口7引入空气与散热器5换热后，经发动机8的两侧流动至出风口4。
现有技术中，第一进风口6和第二进风口7在车辆的纵向上基本与散热器5平齐，流向散热器5的空气因转向而容易产生涡流，从而导致噪音的增大。进一步地，发动机所产生的噪音也会从第一进风口、第二进风口和出风口4辐射出来，因此现有技术的压路机的噪音污染严重。
发明内容
本发明旨在提供一种车辆动力舱具有其的工程车辆，以改善现有技术中存在的工程车辆的噪音较大的问题。
根据本发明实施例的一个方面，本发明提供了一种车辆动力舱，包括舱室以及设置在舱室内的散热器、用于驱动空气流经散热器的冷却风扇和驱动冷却风扇转动的发动机，舱室包括用于引入与散热器换热的空气的进风口和用于输出换热后的空气的出风口，进风口包括第一进风口、第二进风口，第一进风口、散热器和冷却风扇在车辆的纵向上依次布置，第一进风口与散热器在纵向上间隔设置。
可选地，出风口与第一进风口沿纵向布置。
可选地，第一进风口设置在舱室的底部
可选地，第一进风口处设置有第一消音器。
可选地，第一消音器包括百叶窗消音器。
可选地，进风口还包括设置在舱室的侧壁上的第二进风口。
可选地，第二进风口处设置有第二消声器。
可选地，第二消声器包括赫姆霍兹消音器。
可选地，还包括设置在舱室内的第三消音器，用以降低由进风口向出风口流动的空气所产生特定频率的噪音。
可选地，第三消音器包括四分之一波长管。
可选地，还包括设置在出风口处的第四消音器。
可选地，第四消音器包括壳体和设置在壳体内的吸音材料，壳体上设置有通风孔。
可选地，还包括用于将换热后的空气向出风口引导的导流部件。
可选地，导流部件包括第五消音器。
可选地，车辆动力舱还包括用于承载发动机的车架，第五消声器包括消音腔，消音腔由包括倾斜地设置在车架的拐角处的穿孔板和车架围成的空腔，穿孔板的朝向空腔的一侧设置有吸音材料。
可选地，车辆动力舱包括用于隔离驾驶室与用于容纳发动机的舱室的第一挡板。
可选地，第一挡板呈倒凸字形，第一挡板的朝向舱室的一面贴覆有吸音材料。
可选地，舱室是封闭的。
可选地，舱室的内壁全部或局部设置有吸音材料。
根据本申请的另一方面，还提供了一种工程车辆，包括上述的车辆动力舱。
应用本申请的技术方案，第一进风口、散热器和冷却风扇在车辆的纵向上依次布置，第一进风口与散热器在纵向上间隔设置，以使空气能够顺畅的流向散热器，有效地避免了空气流动的过程中产生涡流，从而降低噪音。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1示出了现有技术的工程车辆的结构示意图；
图2示出了现有技术的车辆的动力舱的进风口处的结构示意图；
图3示出了现有技术的车辆的动力舱的内部的结构示意图；
图4示出了本发明的实施例的工程车辆的结构示意图；
图5示出了本发明的实施例的车辆动力舱的各部件布局示意图；
图6示出了本发明的实施例的车辆动力舱的内部的结构示意图；
图7示出了本发明的实施例的车辆动力舱的进风口处的结构示意图；
图8示出了本发明的实施例的车辆动力舱的赫姆霍兹消音器的结构示意图；
图9示出了本发明的实施例的车辆动力舱的舱室的分解图；
图10示出了本发明的实施例的车辆动力舱的出风口处的第三消音器的结构示意图；以及
图11示出了本发明的实施例的车辆动力舱的尾部的消音腔结构的示意图。
图中：1、驾驶室；2、发动机罩；3、出风口；4、车架；5、第一挡板；6、第二进风口；7、第二消音器；8、散热器；9、第一进风口；10、第三消音器；11、格栅；12、第四消音器；121、壳体；122、隔板；123、孔；13、导流部件；14、发动机；15、冷却风扇；16、第二挡板；17、第三挡板；18、穿孔板；19、吸音材料；20、空腔。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，绝不作为对本发明及其应用或使用的任何限制。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图4示出了本实施例的工程车辆的结构示意图；图5示出了本实施例的车辆动力舱的各部件的布局图；图6示出了本的实施例的车辆动力舱的内部的结构示意图。
结合图4至6所示，本实施例的工程车辆包括车架4、安装在车架4上的发动机14和设置在发动机14前方的驾驶室1。
发动机14设置在用于放置发动机14的舱室内，舱室内还设置有散热器8和用于驱动空气流经散热器8的冷却风扇15，冷却风扇15由发动机14驱动。
舱室包括用于引入与散热器8换热的空气的进风口和用于输出换热后的空气的出风口3，进风口包括第一进风口9、第二进风口6，第一进风口9、散热器8和冷却风扇15在车辆的纵向上依次布置，第一进风口9与散热器8在纵向上间隔设置，以使空气能够顺畅的流向散热器8，有效地避免了空气流动的过程中产生涡流，从而降低噪音。
进一步地，空气能够顺利的流向散热器8以保证有充足的空气与散热器8换热，散热器8的散热效率得到提高。
本实施例中，车辆动力舱还包括用于隔离驾驶室1与用于容纳发动机14的舱室的第一挡板5。第一挡板5呈倒凸字形。可选地，第一挡板5的朝向舱室的一面贴覆有吸音材料。
本实施例中舱室包括发动机罩2、设置在发动机两侧的第二挡板16和第三挡板17。发动机罩2、第一挡板5、第二挡板16和第三挡板17形成封闭的舱室，以减少传播到舱室的外部的噪音。
可选地，舱室的内壁全部或局部贴覆有吸音材料。本实施例中，第二挡板16和第三挡板17上贴覆有吸音材料。
本实施例中，第一进风口9、散热器8、冷却风扇15、发动机14和出风口3沿车辆的纵向依次布置，由第一进风口9引入的空气经与散热器8换热后通过发动机 14与舱室的内壁之间的间隙流向出风口3。空气在舱室内能够沿车辆的纵向移动，使得空气的流动顺畅，因此车辆工作过程中所产生的噪音减小。进一步地，散热器8的散热效率提高。
图7示出了本实施例的车辆动力舱的进风口处的结构示意图。如图7所示，第一进风口9设置在舱室的底部。充分利用了车架4底部的空间，在不增加车辆的纵向尺寸的前提下，使的第一进风口9与散热器8在车辆的纵向上具有间距，从而空气能够顺畅的流向散热器8，以减小空气流动过程中出现涡流的几率。
第一进风口9处设置有第一消音器，以降低从舱室内向外部辐射的噪音。可选地，第一消音器包括百叶窗消音器。百叶窗消音器包括并排布置的多个叶片。优选地，叶片上贴覆有吸音材料层，用于降低噪音。吸音材料层的厚度为2毫米至10毫米。
本实施例中，叶片的横截面呈V型，优选地V型的夹角为120°至150°。上述的吸音材料层贴覆在叶片的内侧。
如图7所示，进风口还包括设置在舱室的侧壁上的第二进风口6。第二进风口6位于舱室的侧壁的上部。
第二进风口6处设置有第二消音器。可选地，第二消音器包括赫姆霍兹消音器。图8示出了本实施例的赫姆霍兹消音器的结构示意图。赫姆霍兹消音器包括三角棱柱形的消音腔。
图9示出了本实施例的车辆动力舱的分解图。车辆动力舱还包括设置在舱室内的第三消音器10，第三消音器10用于降低由进风口向出风口3流动的空气所产生的特定频率的噪音。
第三消音器10包括四分之一波长管。四分之一波长管呈弧形。四分之一波长管的长度为0.5米至1.5米。
四分之一波长管的进口设置在冷却风扇15的背对散热器8的一侧。
四分之一波长管为两个，两个四分之一波长管分别位于发动机14的两侧。可选地，四分之一波长管安装在舱室的侧壁上。
车辆动力舱还包括设置在出风口3处的第四消音器12，用于降低通过出风口3辐射到舱室外部的噪音。
图10示出了本实施例的第四消音器12的结构示意图。第三消音器12包括壳体121和设置在壳体121内的吸音材料。可选地，壳体121的内外两侧均设置有吸音材 料。
壳体121包括相对设置的两个侧壁和连接在两个侧壁之间的隔板122，用以增强壳体121的强度，对流出动力舱的空气起到引导作用。
壳体121的一个侧壁朝向下方，该侧壁上设置有多个孔123。壳体121还包括分别朝向腔室的两个侧壁的两个开口。
本实施例中，出风口3上还设置有格栅11。
结合图5所示，车辆动力舱还包括用于将换热后的空气向出风口引导的导流部件13。
导流部件13、发动机罩2和出风口3形成U型出风结构，以减小空气流动时产生的涡流，进一步地减小了出风阻力。
如图11所示，导流部件包括第五消音器。第五消音器包括消音腔，消音腔由穿孔板18、吸音材料19、空腔20和车架4组成。
车辆动力舱还包括用于承载发动机14的车架4，第五消声器包括消音腔，消音腔由包括倾斜地设置在车架4的拐角处的穿孔板18和车架4围成的空腔20，穿孔板18的朝向空腔20的一侧设置有吸音材料19。
根据本申请的另一方面本实施例还提供了一种工程车辆，该工程车辆具有上述的车辆动力舱。工程车辆包括压路机。
以上仅为本发明的示例性实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (20)

  1. 一种车辆动力舱，其特征在于，包括舱室以及设置在所述舱室内的散热器(8)、用于驱动空气流经所述散热器(8)的冷却风扇(15)和驱动所述冷却风扇(15)转动的发动机(14)，所述舱室包括用于引入与所述散热器(8)换热的空气的进风口和用于输出换热后的空气的出风口(3)，所述进风口包括第一进风口(9)，所述第一进风口(9)、所述散热器(8)和所述冷却风扇(15)在车辆的纵向上依次布置，所述第一进风口(9)与所述散热器(8)在所述纵向上间隔设置。
  2. 根据权利要求1所述的车辆动力舱，其特征在于，所述出风口(3)与所述第一进风口沿所述纵向布置。
  3. 根据权利要求1所述的车辆动力舱，其特征在于，所述第一进风口(9)设置在所述舱室的底部。
  4. 根据权利要求3所述的车辆动力舱，其特征在于，所述第一进风口(9)处设置有第一消音器。
  5. 根据权利要求4所述的车辆动力舱，其特征在于，所述第一消音器包括百叶窗消音器。
  6. 根据权利要求1所述的车辆动力舱，其特征在于，所述进风口还包括设置在所述舱室的侧壁上的第二进风口(6)。
  7. 根据权利要求6所述的车辆动力舱，其特征在于，所述第二进风口(6)处设置有第二消声器(7)。
  8. 根据权利要求7所述的车辆动力舱，其特征在于，所述第二消声器(7)包括赫姆霍兹消音器。
  9. 根据权利要求1所述的车辆动力舱，其特征在于，还包括设置在所述舱室内的第三消音器(10)，用以降低由所述进风口向所述出风口(3)流动的空气所产生特定频率的噪音。
  10. 根据权利要求9所述的车辆动力舱，其特征在于，所述第三消音器包括四分之一波长管。
  11. 根据权利要求1所述的车辆动力舱，其特征在于，还包括设置在所述出风口(3)处的第四消音器(12)。
  12. 根据权利要求11所述的车辆动力舱，其特征在于，所述第四消音器(12)包括壳体和设置在所述壳体内的吸音材料，所述壳体上设置有通风孔。
  13. 根据权利要求1所述的车辆动力舱，其特征在于，还包括用于将所述换热后的空气向所述出风口引导的导流部件(13)。
  14. 根据权利要求13所述的车辆动力舱，其特征在于，所述导流部件包括第五消音器。
  15. 根据权利要求14所述的车辆动力舱，其特征在于，所述车辆动力舱还包括用于承载发动机(14)的车架(4)，所述第五消声器包括消音腔，消音腔包括倾斜地设置在车架(4)的拐角处的穿孔板(18)和车架(4)围成的空腔(20)，所述穿孔板(18)的朝向空腔(20)的一侧设置有吸音材料(19)。
  16. 根据权利要求1所述的车辆动力舱，其特征在于，所述车辆动力舱包括用于隔离驾驶室(1)与用于容纳发动机(14)的舱室的第一挡板(5)。
  17. 根据权利要求16所述的车辆动力舱，其特征在于，所述第一挡板(5)呈倒凸字形，第一挡板(5)的朝向舱室的一面贴覆有吸音材料。
  18. 根据权利要求1所述的车辆动力舱，其特征在于，所述舱室是封闭的。
  19. 根据权利要求1所述的车辆动力舱，其特征在于，所述舱室的内壁全部或局部设置有吸音材料。
  20. 一种工程车辆，其特征在于，包括权利要求1所述的车辆动力舱。
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WO2017215433A1 (zh) 2017-12-21
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