WO2014027619A1 - 建設機械の冷却ファン取付構造 - Google Patents
建設機械の冷却ファン取付構造 Download PDFInfo
- Publication number
- WO2014027619A1 WO2014027619A1 PCT/JP2013/071636 JP2013071636W WO2014027619A1 WO 2014027619 A1 WO2014027619 A1 WO 2014027619A1 JP 2013071636 W JP2013071636 W JP 2013071636W WO 2014027619 A1 WO2014027619 A1 WO 2014027619A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling fan
- partition member
- mounting structure
- fan
- construction machine
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/08—Arrangements of lubricant coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
- F01P2003/185—Arrangements or mounting of liquid-to-air heat-exchangers arranged in parallel
Definitions
- the present invention relates to a cooling fan mounting structure for air-cooling a heat exchanger such as a radiator or an oil cooler of a construction machine.
- a construction machine such as a hydraulic excavator is operated by driving a hydraulic pump with a diesel engine (internal combustion engine) and pumping hydraulic oil from the hydraulic pump to a hydraulic actuator such as a hydraulic cylinder or a hydraulic motor.
- a hydraulic actuator such as a hydraulic cylinder or a hydraulic motor.
- heat exchangers such as radiators and oil coolers that circulate high-temperature engine coolant and hydraulic oil are installed in the vicinity of the engine together with a cooling fan, and this cooling fan is rotated by the driving force of the engine.
- the engine cooling water and hydraulic oil flowing through these heat exchangers are forcibly cooled (air cooled) by driving and ventilating.
- a cooling fan called a hybrid fan in which a lightweight, low-noise resin blade is combined with a high-strength metallic spider as disclosed in Patent Document 1 below is used as a conventional cooling fan. If employed instead, a sufficient amount of cooling air can be secured with low noise.
- the present invention has been devised to solve these problems, and its purpose is a novel that can prevent backflow of air from the downstream side (high pressure side) to the upstream side (low pressure side) of the cooling fan.
- a cooling fan mounting structure for a construction machine is provided.
- a first invention is a cooling fan mounting structure provided with a blade at each tip of a spider mounting arm, wherein the rotation center portion of the spider is a rotating shaft driven by an engine. It is a cooling fan mounting structure for a construction machine in which a partition member that covers the gap between the mounting arms of the spider is mounted to the fan adapter while being mounted via a fan adapter.
- the gap between the attachment arms of the spider can be reliably closed, and the partition member rotates together with the cooling fan, so that a gap is generated between the rotating shaft and the partition member. Absent. As a result, the backflow of air from the fan downstream side (high pressure side) to the upstream side (low pressure side) can be reliably prevented.
- the partition member includes a tubular partition member main body that is detachably fitted to the fan adapter, and a bowl-shaped partition provided on an outer periphery of the partition member main body.
- a cooling fan mounting structure for a construction machine having a plate According to such a configuration, the main body of the partition member can be easily attached to the fan adapter, and the gap between the spiders can be reliably closed by the bowl-shaped partition plate.
- a third invention is a cooling fan mounting structure for a construction machine according to the first invention, wherein the partition member is a disk that is sandwiched and mounted between the fan adapter and a rotation center of the cooling fan. . According to such a configuration, the partition member can be easily attached and the gap of the spider can be reliably closed.
- the partition member is a cooling fan mounting structure for a construction machine made of resin. If the partition member is made of resin in this way, it is possible to exhibit sufficient strength to prevent the backflow of air from the upstream side of the fan to the downstream side, and to achieve a reduction in the overall weight.
- the gap between the spider mounting arms can be reliably closed, and the partition member rotates together with the cooling fan, so that no gap is generated between the rotating shaft and the partition member.
- the backflow of air from the fan downstream side (high pressure side) to the upstream side (low pressure side) can be reliably prevented.
- FIG. 1 is an overall view showing an embodiment of a hydraulic excavator 100 which is one of construction machines according to the present invention.
- 3 is a plan view showing a structural example in an engine chamber 22.
- FIG. 2 is a plan view showing an embodiment of a cooling fan 30.
- FIG. It is explanatory drawing which shows the flow of the air by the cooling fan 30 which employ
- It is a disassembled perspective view which shows one Embodiment of the attachment structure of the cooling fan 30 which concerns on this invention.
- FIG. It is a disassembled perspective view which shows other embodiment of the attachment structure of the cooling fan 30 which concerns on this invention.
- FIG. 1 is an overall view showing an embodiment of a hydraulic excavator 100 which is one of construction machines according to the present invention.
- the excavator 100 is mainly composed of a lower traveling body 10 and an upper revolving body 20 provided on the lower traveling body 10 so as to be rotatable.
- the lower traveling body 10 has a pair of crawlers 11 positioned in parallel with each other on a traveling body frame (not shown).
- the crawlers 11 are hydraulically driven traveling motors for traveling by driving the respective crawler belts. 12 is provided.
- the upper-part turning body 20 includes an engine room 22 in which various devices such as an engine, a heat exchanger, and a battery installed on the turning body frame 21 are housed, and an operation provided on the front left side of the engine room 22. It is mainly comprised from the chamber 23, the front working machine 24 extended ahead from the right side of this cab 23, and the counterweight 25 provided in the back of the engine room 22 in order to balance the weight with this front working machine 24. ing.
- the front work machine 24 includes a boom 24a extending forward from the revolving structure frame 21, the arm 24b swingably provided at the tip of the boom 24a, and a bucket swingably provided at the tip of the arm 24b.
- the boom 24a, the arm 24b, and the bucket 24c are respectively operated by a boom cylinder 24d, an arm cylinder 24e, and a bucket cylinder 24f that extend and contract by hydraulic pressure.
- the engine chamber 22 is covered with a building cover 26 in which a plurality of air intakes 26a are formed.
- a diesel engine 27 is accommodated in the interior of the engine chamber 22 and a heat exchanger is disposed in the vicinity thereof.
- a unit 28 is installed. The diesel engine 27 and the heat exchanger unit 28 are supported and fixed on the revolving body frame 21 by fastening bolts or an engine mount (not shown).
- the heat exchanger unit 28 includes an oil cooler 28a through which hydraulic oil flows, a radiator 28b through which engine cooling water flows, and an intercooler 28c that cools engine intake air.
- a cooling fan 30 is provided between the heat exchanger unit 28 and the diesel engine 27, and the periphery of the cooling fan 30 is covered with a shroud 40.
- a hydraulic pump 50 is provided on the flywheel (not shown) side of the diesel engine 27, and the operation in the hydraulic oil tank (not shown) is performed by the driving force of the diesel engine 27. Oil is pumped to various actuators through various valves.
- the cooling fan 30 includes a metal spider 31 made of aluminum or the like, and a plurality of (six in this embodiment) blades 32, 32, 32, 32, 32, 32.
- the spider 31 has a plurality of (six in this embodiment) mounting arms 31c, 31c, 31c, 31c, 31c, 31c radially and circumferentially around the rotation center portion 31b in which the through hole 31a is formed. It is provided at intervals.
- a resin blade 32 is integrally attached to the tip of each of the attachment arms 31c, 31c, 31c, 31c, 31c, 31c by a rivet (not shown).
- a plurality of bolt holes 31d (four in the present embodiment) for attaching the fan adapter 60 are formed around the through hole 31a.
- the cooling fan 30 is attached to the rotating shaft 33 of the diesel engine 27 via a fan adapter 60 as shown in FIGS.
- the rotating shaft 33 is connected to the engine 27 side via a fan pulley 34, a fan belt 35, and a crank pulley 36, and transmits the rotational driving force of the engine 27 that has transmitted these to the fan adapter 60.
- the rotary shaft 33 has a flange 33b at the tip of the shaft portion 33a as shown in FIG. 5, and a plurality of bolts extending from the fan adapter 60 side into a plurality of bolt holes 33c formed in the flange 33b. 37 is screwed together so as to be integrally connected to the fan adapter 60.
- the fan adapter 60 includes a first cylindrical portion 61 having a rectangular cross section and a second cylindrical portion 62 having a circular cross section, as shown in FIG.
- a plurality of through holes 61a are provided on the first tubular portion 61 side, and bolts 33c are formed in the flanges 33b of the rotary shaft 33 through the respective through holes 61a.
- the rotary shaft 33 on the engine 27 side is integrally connected by being screwed to.
- a plurality of bolt holes 62a are formed on the second cylindrical portion 62 side so as to protrude to the periphery thereof, and the bolts 63 that have passed through the bolt holes 31d are screwed together, whereby the cooling fan 30 is They are connected together.
- the partition member 70 includes a tubular partition member main body 71 that is detachably fitted to the outer side of the fan adapter 60 on the first tubular portion 61 side, and a bowl-shaped partition plate provided on the outer periphery of the partition member main body 71. 72.
- the partition member main body 71 is configured by a cylindrical body having a rectangular cross section similar to the first cylindrical portion 61, and is fitted on the outer side of the first cylindrical portion 61 and formed on the peripheral surface thereof.
- Bolts 73 are inserted from the through holes 72a and 72a, and screwed into bolt holes 61b and 61b (the lower surface side is not shown) formed on the upper and lower circumferential surfaces of the first cylindrical portion 61, so that the fan adapter 60 is engaged. It can be integrated in one piece.
- the partition plate 72 is formed so as to extend like a bowl in the radial direction from the end surface of the partition member main body 71 on the cooling fan 30 side, and the size in the radial direction is as shown in FIG. 30 blades 32 are formed in a size that reaches the inner peripheral side end.
- a part of the air on the downstream side (high pressure side: positive pressure) 30 is shroud from a gap (A portion in the figure) formed between the root of the mounting arm 31c of the spider 31 and the blade 32 as shown in FIG. It will flow backward to the 40 side and a loss will occur.
- the partition member 70 rotates together with the fan adapter 60, the partition member 70 can be attached so as to be in close contact with the fan adapter 60. As a result, the gap between the partition member 70 and the fan adapter 60 can be eliminated, and the airflow loss can be minimized.
- the partition member 70 is made of a heat-resistant synthetic resin, for example, a thermosetting resin such as a phenol resin, a melamine resin, or a polyester resin, and is lighter than a metal. For this reason, the load applied to the rotating shaft 33 or the like does not increase greatly, and the load of the drive source such as the engine 27 is almost the same as the conventional one. Further, since it is not necessary to modify the conventional fan mounting structure, the cost can be kept low, and the existing one can be easily retrofitted.
- the partition member 70 in order to attach the partition member 70 to the fan adapter 60 side, it is configured by the cylindrical partition member main body 71 and the bowl-shaped partition plate 72.
- a donut-shaped circle as shown in FIG. It may be a plate.
- a plurality of bolts that are positioned so as to sandwich a donut-shaped disk between the fan adapter 60 and the rotation center portion 31b of the cooling fan 30 and project to the inner peripheral side thereof
- the partition member 70 can be attached concentrically with the rotation center portion 31b of the cooling fan 30 by screwing a plurality of bolts 64 from the through hole 31e side of the cooling fan 30 to the hole 70a.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
27…ディーゼルエンジン
28…熱交換器ユニット
30…冷却ファン
31…スパイダ
31b…回転中心部
31c…取付けアーム
32…ブレード
33…回転軸
60…ファンアダプタ
70…仕切部材
71…仕切部材本体
72…仕切板
Claims (4)
- スパイダの取付けアームの各先端にブレードを備えた冷却ファンの取付構造であって、 前記スパイダの回転中心部を、エンジンで駆動される回転軸にファンアダプタを介して取り付けると共に、
前記ファンアダプタに、前記スパイダの取付けアーム間の隙間を覆う仕切部材を取り付けた建設機械の冷却ファン取付構造。 - 請求項1に記載の建設機械の冷却ファン取付構造において、
前記仕切部材は、前記ファンアダプタに外側に着脱自在に嵌め込まれる筒状の仕切部材本体と、この仕切部材本体の外周に設けられた鍔状の仕切板とを有する建設機械の冷却ファン取付構造。 - 請求項1に記載の建設機械の冷却ファン取付構造において、
前記仕切部材は、前記ファンアダプタと前記冷却ファンの回転中心部との間に挟まれて取り付けられる円板からなる建設機械の冷却ファン取付構造。 - 請求項1に記載の建設機械の冷却ファン取付構造において、
前記仕切部材は、樹脂からなる建設機械の冷却ファン取付構造。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/421,567 US20150204351A1 (en) | 2012-08-16 | 2013-08-09 | Cooling Fan Mounting Structure for Construction Machine |
JP2014530541A JPWO2014027619A1 (ja) | 2012-08-16 | 2013-08-09 | 建設機械の冷却ファン取付構造 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-180364 | 2012-08-16 | ||
JP2012180364 | 2012-08-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014027619A1 true WO2014027619A1 (ja) | 2014-02-20 |
Family
ID=50685581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/071636 WO2014027619A1 (ja) | 2012-08-16 | 2013-08-09 | 建設機械の冷却ファン取付構造 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20150204351A1 (ja) |
JP (1) | JPWO2014027619A1 (ja) |
WO (1) | WO2014027619A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10670042B2 (en) * | 2017-10-10 | 2020-06-02 | Deere & Company | Hub for a fluid-flow control system |
CA3180967A1 (en) * | 2020-04-23 | 2021-10-28 | Clark Equipment Company | Identification and reduction of backflow suction in cooling systems |
US11473488B2 (en) * | 2020-12-15 | 2022-10-18 | Caterpillar Inc. | Engine fan adapter systems and methods |
US11377998B1 (en) * | 2020-12-15 | 2022-07-05 | Caterpillar Inc. | Fan adapter for an engine |
CN113187594B (zh) * | 2021-04-19 | 2022-10-21 | 东风柳州汽车有限公司 | 一种散热装置 |
Citations (7)
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JPS5639891U (ja) * | 1979-09-06 | 1981-04-14 | ||
JPS58144100U (ja) * | 1982-03-24 | 1983-09-28 | 日産自動車株式会社 | 斜流型フアン |
JPS60156998A (ja) * | 1984-01-26 | 1985-08-17 | Daikin Ind Ltd | プロペラフアン |
JPH0417800A (ja) * | 1990-05-09 | 1992-01-22 | Usui Internatl Ind Co Ltd | 下流抵抗板付フアン |
JPH0749098A (ja) * | 1993-08-05 | 1995-02-21 | Kuken Kogyo Kk | 送風機 |
JPH08276755A (ja) * | 1995-03-31 | 1996-10-22 | Caterpillar Inc | エンジン冷却システム |
JP2001248596A (ja) * | 2000-03-03 | 2001-09-14 | Isuzu Motors Ltd | 冷却ファン |
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2013
- 2013-08-09 WO PCT/JP2013/071636 patent/WO2014027619A1/ja active Application Filing
- 2013-08-09 JP JP2014530541A patent/JPWO2014027619A1/ja active Pending
- 2013-08-09 US US14/421,567 patent/US20150204351A1/en not_active Abandoned
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JPS5639891U (ja) * | 1979-09-06 | 1981-04-14 | ||
JPS58144100U (ja) * | 1982-03-24 | 1983-09-28 | 日産自動車株式会社 | 斜流型フアン |
JPS60156998A (ja) * | 1984-01-26 | 1985-08-17 | Daikin Ind Ltd | プロペラフアン |
JPH0417800A (ja) * | 1990-05-09 | 1992-01-22 | Usui Internatl Ind Co Ltd | 下流抵抗板付フアン |
JPH0749098A (ja) * | 1993-08-05 | 1995-02-21 | Kuken Kogyo Kk | 送風機 |
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Also Published As
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US20150204351A1 (en) | 2015-07-23 |
JPWO2014027619A1 (ja) | 2016-07-25 |
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