WO2009110508A1 - 建設機械の熱交換装置 - Google Patents
建設機械の熱交換装置 Download PDFInfo
- Publication number
- WO2009110508A1 WO2009110508A1 PCT/JP2009/054074 JP2009054074W WO2009110508A1 WO 2009110508 A1 WO2009110508 A1 WO 2009110508A1 JP 2009054074 W JP2009054074 W JP 2009054074W WO 2009110508 A1 WO2009110508 A1 WO 2009110508A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- locked
- locking portion
- heat exchanger
- dustproof net
- Prior art date
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Classifications
-
- 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
- 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
-
- 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
-
- 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
- F01P11/12—Filtering, cooling, or silencing cooling-air
Definitions
- the present invention relates to a heat exchange device for a construction machine used in, for example, a hydraulic excavator, a hydraulic crane, a wheel loader, and the like.
- a hydraulic excavator is provided with a heat exchange device such as a radiator that cools cooling water for an engine and an oil cooler that cools hydraulic oil that operates various actuators.
- a heat exchange device such as a radiator that cools cooling water for an engine and an oil cooler that cools hydraulic oil that operates various actuators.
- These heat exchange devices are provided to be cooled by cooling air generated by the rotation of the fan.
- the surface of the heat exchange device that receives the cooling air is provided with a dustproof net to prevent clogging of the main body of the heat exchange device.
- the dustproof net is attached to the heat exchange device with bolts. JP-A-11-190215
- the bolt is attached to the upper part of the dustproof net, and the lower part of the dustproof net is set as a plug-in type.
- the lower part of the dustproof net is set as a plug-in type, if the lower part of the structure is only fitted into the gap, fluttering occurs due to the wind pressure of the cooling air. Therefore, it is not possible to adopt a configuration in which the bolt fixing on the upper part of the dustproof net is omitted.
- a small turning type hydraulic excavator or mini excavator having a configuration in which the distance between the driver's seat and the heat exchanging device is short, the sound generated by the fluttering becomes annoying to the operator.
- An object of the present invention is to provide a heat exchanging device for a construction machine that can be easily attached / detached with a dustproof net and can be attached while suppressing flapping of the dustproof net.
- an invention according to claim 1 of the present application includes a frame, a drive source provided on the frame, a heat exchanger provided on the frame for cooling the drive source, and on the frame.
- a heat exchange device for a construction machine comprising: a fan that supplies cooling air to the heat exchanger; and a dustproof net provided upstream of the heat exchanger in the flow of cooling air by the fan.
- the dustproof net includes a frame part, a net part stretched inside the frame part, and a locking part attached to the frame part, and the locking part is provided with a cover provided in the heat exchanger.
- the locking part is provided so as to be lockable, and includes an elastic member on at least one side of the locking part and the locked part, and the locking part and the locked part are interposed via the elastic member. So as to fit with respect to the recess dimension in the locking portion. It is characterized in that the protrusion size set equal to or larger in the locking portion.
- the invention according to claim 2 of the present application is characterized in that, in the invention of claim 1, the frame is provided so as to be able to turn.
- the invention according to claim 3 of the present application is characterized in that, in the invention according to claim 1 or 2, the dustproof net is provided with a handle on an upper portion of the frame.
- the invention according to claim 3 configured in this way contributes to an improvement in the ease of pulling out the dustproof net.
- the invention according to claim 4 of the present application is characterized in that, in the invention of claim 3, the handle portion is provided integrally with the locking portion.
- the assembling work for attaching the handle portion and the locking portion to the frame portion can be facilitated.
- the invention according to claim 5 includes a traveling body in which a crawler belt is hung around each of a pair of track frames, a revolving body provided on the traveling body so as to be able to turn, and a cab provided on the front side on the revolving body.
- a heat exchange device for a construction machine comprising a heat exchanger disposed in a position to receive cooling air generated by rotation of the fan and a dustproof net provided on each upstream side of the heat exchanger
- the dust-proof net includes a frame portion, a net portion stretched inside the frame portion, a handle portion attached to an upper portion of the frame portion, and a first locking portion provided integrally with the handle portion.
- a second locking portion, and the first locking portion and the second locking portion are respectively locked to locked portions provided in a support frame member that supports the heat exchanger.
- a bent portion Provided at each end of each of the first locking portion and the second locking portion is provided with a bent portion, and at least one of the bent portion and the locked portion is provided with an elastic member,
- the convex dimension in the locked part is set equal to or larger than the concave dimension in the bent part so that the bent part and the locked part are fitted via the elastic member.
- the dustproof net can be easily attached and detached, and the dustproof net can be attached while suppressing flapping.
- FIG. 1 is a side view showing the entire hydraulic excavator
- FIG. 2 is a top view showing an arrangement on a revolving frame
- FIG. 3 is a longitudinal sectional view taken along the line II-II in FIG. 2
- FIG. 4 is a perspective view showing the configuration of the heat exchanger to which a dustproof net is attached.
- FIG. 5 is a perspective view showing a dustproof net of the present invention
- FIG. 6 is a perspective view showing a handle part of the dustproof net alone.
- FIG. 7 is a partially enlarged view showing the upper part of the support member provided with the locked portion on the heat exchanger side
- FIG. 8 is a perspective view showing the middle of pulling out the dustproof net from the heat exchange device.
- the left side of the drawing in FIG. 1 is the front side
- the right side of the drawing is the rear side
- the upper side of the drawing in FIG. 2 is the right side
- the lower side of the drawing is the left side.
- the hydraulic excavator 1 includes a traveling body 4 in which a pair of track frames 2 are wound around an endless crawler belt 3, and a revolving body attached on the traveling body 4 via a revolving device 5. 6 and a front device 7 rotatably provided on the front side of the revolving structure 6.
- the swivel body 6 includes a swivel frame 8 attached to the swivel device 5 so as to be turnable, a counterweight 9 attached to a rear end of the swivel frame 8, and a vicinity of a base end portion of the front device 7 on the front side of the swivel frame. And a building cover 11 that covers a space between the cab 10 and the counterweight 9.
- the front device 7 includes a boom 7a having a base end pivotally attached to the revolving frame 8, an arm 7b having a base end pivotably provided at the tip end of the boom 7a, and a pivot to the tip end of the arm 7b.
- the bucket 7c is movably attached.
- the building cover 11 is disposed between the front side of the counterweight 9 and the rear side of the cab 10 so that the engine 12 as a drive source lies in the width direction of the revolving frame 8.
- a support frame 13 that supports the boom 7 a in the front device 7 is provided on the right side portion of 10.
- a control valve 14 is disposed in front of the support frame 13 on the right side, and a hydraulic oil tank 15 and a fuel tank 16 are disposed behind the control valve 14 in order from the inside of the revolving frame 8.
- a space surrounded by the support frame 13, the hydraulic oil tank 15, and the engine 12 corresponds to the approximate center of the revolving frame 8, and a revolving motor 17 is disposed at this portion.
- a muffler 18 is disposed on the upper right side of the revolving frame 8 with respect to the engine 12, and a hydraulic pump 19 is disposed below the muffler 18.
- an oil cooler 20 and a radiator 21 as heat exchangers arranged in parallel, and with respect to the oil cooler 20 and the radiator 21, on the side of the revolving frame 8,
- An intercooler 22 is disposed as an exchanger.
- the radiator 21 cools the engine 12 and the oil cooler 20 is provided to cool the hydraulic oil.
- an air conditioner condenser 24 is attached and supported so as to be rotatable to the side of the revolving structure.
- a fan 23 is attached to the rotating shaft of the engine 12 via a pulley 12a.
- the cooling air generated by the fan 23 flows through the louver 26 formed in the building cover 11 in the order of the air conditioner condenser 24, the dustproof net 25, the intercooler 22, the oil cooler 20, or the radiator 21, and enters the building cover 11. It is captured.
- the dustproof net 25 is provided on the upstream side of the heat exchanger including the radiator 21 in the flow of cooling air by the fan 23.
- the oil cooler 20 and the radiator 21 are arranged in parallel, and the oil cooler 20 and the radiator 21 are sandwiched between a pair of support frame bodies 27, 27 erected from the revolving frame 8. It is fixed while being supported.
- the intercooler 22 is fixedly supported by support frames 27 and 27 on the upstream side of the oil cooler 20 and the radiator 21, and the upper portion of the intercooler 22 is supported by a beam member 28 so as to bridge the pair of support frames 27 and 27. It is fixed.
- the area of the heat radiating portion of the intercooler 22 is set to be approximately the same as the sum of the areas of the heat radiating portions of the oil cooler 20 and the radiator 21.
- An air conditioner condenser 24 is attached to the pair of support frames 27, 27 on the side of the vehicle body via a pair of brackets 29, 29.
- the air conditioner condenser 24 is rotatably supported by one bracket 29 and is detachably attached to the other bracket 29.
- the dust-proof net 25 includes a rectangular frame portion 30, a net-like net portion 31 stretched inside the frame portion 30, and a U-shape for gripping when attaching and detaching.
- the handle portion 32 and a plurality of locking portions 33 attached to the frame portion 30 are roughly configured, and the two illustrated frame portions 30 and 30 are formed separately from each other, and the upper portion of the frame portion.
- the small piece 30a which protrudes from the external shape of a frame part is provided in the edge part of one side.
- the small piece 30a has a role of guiding the other dustproof net 25 and a role of regulating the position.
- the locking portion 33 includes an upper locking portion 34 attached to the upper portion of the frame portion 30 and a lower locking portion 35 attached to the lower portion of the frame portion 30.
- the handle portion 32 and the upper locking portion 34 are integrally formed, and a mounting base end portion of the handle portion 32 is provided with a plate-like support plate member 32 d extending in the horizontal direction.
- a pair of upper locking portions 34 are provided so as to sandwich the handle portion 32 therebetween.
- the upper locking portion 34 is configured by bending a pair of protruding pieces extending upward from the support plate member 32d in a round shape. More specifically, the upper locking portion 34 is formed in a series with the standing portion 34a extending upward, the bent portion 34b formed in series with the standing portion 34a, and the bent portion 34b.
- the return portion 34c extends downward, and the return portion 34c and an end portion 34d that is formed in series and extends obliquely downward in a direction away from the standing portion 34a.
- a bent portion 34e formed between the return portion 34c and the end portion 34d is set so as to be engageable with an engaged portion 37a described later via an elastic member 38 described later.
- the elastic members 36 and 38 are made of a soft material such as a rubber material, a resin material, or a felt, for example.
- the handle portion 32 is formed by a pair of rising portions 32a extending upward from the support plate member 32d and the upper portions of the rising portions 32a communicating with the gripping portion 32c via a series of rounded bent portions 32b. is there.
- the grip 32c is provided substantially in parallel with the support plate member 32d.
- the handle portion 32 is fitted and covered with an elastic member 36 having a U-shaped cross section.
- the upper part of the frame 30 is attached to the support plate member 32d by means such as welding or bolts.
- the heat exchanger side to which the dustproof net 25 is attached is a beam member 28 spanned between a pair of support frames 27, 27 as shown in FIG.
- a support member 27 a is provided between the pair of support frames 27, 27 in parallel with the beam member 28.
- the height of the upper portion of the upper support member 27 is set so as to match the height position of the upper locking portion 34 with the dustproof net 25 attached.
- the upper support member 27 is set so that a plurality of portions in the upper part are elongated upward by a predetermined dimension, and a portion set to be longer by the predetermined dimension is bent.
- the dimension Y between the bent parts 27b adjacent to each other is set to be substantially equal to the length dimension X of the support plate member 32d in the handle part 32.
- the bending portion 27b has a function of limiting the horizontal movement of the support plate member 32d.
- a support member 27 c that connects the lower portions of the pair of support frames 27 to each other is provided, and the height that can be fitted to the lower locking portion 35 of the dustproof net 25.
- a lower locked portion 37b is provided at the position.
- An elastic member 38 is fitted in the lower locked portion 37b in advance, and the lower locking portion 35 is fitted to each other so that vibration due to flapping can be absorbed.
- the lower locking portion 35 has the same shape as the upper locking portion 34 described above, and is different in shape from the upper locking portion 34 in that it is separated from the handle portion 32.
- the gap dimension between each of the bent part 34e and the upper locked part 37a is larger than the dimension A between the bent part 34e and the standing part 34a as shown in FIG. ) (Not shown) is set equal to or smaller than the thickness E of the elastic member 38 attached in advance to the upper locked portion 37a.
- the elastic member 38 fitted to the upper locked portion 37a and the bent portion 34e are set so as to be fitted.
- the gap dimension in the bent portion 34e indicates the dimension D as a gap dimension for forming the concave portion
- the dimension in the upper locked portion 37a indicates the dimension E as the thickness dimension for forming the convex portion.
- the locking portions 34 and 35 and the locked portions 37a and 37b are only fitted and attached to each other via the elastic member 38, so that a fixing member such as a bolt is attached to the tool. It can be pulled out or inserted without performing the attaching / detaching operation using the. Thereby, the attachment / detachment work of the dustproof net 25 is facilitated, and the maintenance time can be shortened.
- the locking portion 33 and the handle portion 32 may be formed separately.
- the handle portion 32 may not be necessarily formed.
- the upper locking part and the lower locking part should be configured in a common shape. This can contribute to a reduction in the number of parts and cost.
- the dust-proof net 25 is also arranged in a pair of shapes, but the radiator 21 and the oil cooler 20 are configured. Needless to say, when arranged in series, the configuration can be omitted.
- the configuration in which the elastic member is attached to the upper locked portion 37a and the lower locked portion 37b has been described as an example, but the upper locking portion 34 and the lower locking portion 35 are elastic. Even if the member is attached, the same effect is obtained.
- the first locking portion shown in the claims indicates the upper locking portion 34, and the second locking portion indicates the lower locking portion 35.
- FIG. 3 is a longitudinal sectional view as seen from the direction II-II in FIG. 2. It is a perspective view which shows the structure of the heat exchanger to which the dustproof net was attached. It is a perspective view showing a dustproof net of the present invention. It is a perspective view which shows the handle part of a dustproof net alone. It is the elements on larger scale which show the upper part of the supporting member provided with the to-be-latched part by the side of a heat exchanger. It is a perspective view which shows the middle of pulling out a dustproof net from a heat exchanger.
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- Combustion & Propulsion (AREA)
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
2 トラックフレーム
3 履帯
4 走行体
5 旋回装置
6 旋回体
7 フロント装置
8 旋回フレーム
9 カウンタウエイト
10 キャブ
11 建屋カバー
12 エンジン
13 支持フレーム
14 コントロールバルブ
15 作動油タンク
16 燃料タンク
17 旋回用モータ
18 マフラー
19 油圧ポンプ
20 オイルクーラ
21 ラジエータ
22 インタークーラ
23 ファン
24 エアコン用コンデンサー
25 防塵用ネット
26 ルーバー
27 支持枠体
27a 上側支持部材
27b 曲げ部
27c 下側支持部材
28 梁部材
29 ブラケット
30 枠部
30a 小片
31 ネット部
32 取手部
32a 立ち上がり部
32b 曲がり部
32c 把持部
32d 支持板部材
33 係止部
34 上側係止部
34a 立設部
34b 曲成部
34c 返部
34d 端部
34e 曲折部
35 下側係止部
36 弾性部材
37a 上側被係止部(被係止部)
37b 下側被係止部(被係止部)
38 弾性部材
Claims (5)
- フレームと、
このフレーム上に備えた駆動源と、
前記フレーム上に設け前記駆動源を冷却する熱交換器と、
前記フレーム上に備え冷却風を前記熱交換器へ供給するファンと、
このファンによる冷却風の流れの中で前記熱交換器に対し上流に設けた防塵用ネットと
を備えた建設機械の熱交換装置において、
前記防塵用ネットは、
枠部と、
この枠部の内側に張られたネット部と、
前記枠部に取り付けられた係止部とを備え、
前記係止部は、
前記熱交換器に備えた被係止部に対し係止可能に設けられ、
前記係止部及び前記被係止部のうち少なくとも一方側に弾性部材を備え、
前記係止部と前記被係止部とが前記弾性部材を介して嵌合するように、前記係止部における凹部寸法に対し、前記被係止部における凸部寸法を同等もしくは大きく設定したことを特徴とする建設機械の熱交換装置。 - 前記フレームを、旋回可能に設けたことを特徴とする請求項1に記載の建設機械の熱交換装置。
- 前記防塵用ネットは、枠体の上部に取手部を備えたことを特徴とする請求項1または2に記載の建設機械の熱交換装置。
- 前記取手部は、前記係止部と一体に設けたことを特徴とする請求項3に記載の建設機械の熱交換装置。
- 一対のトラックフレームのそれぞれに履帯を掛けまわした走行体と、
この走行体上に旋回可能に設けた旋回体と、
この旋回体上の前側に設けた運転室と、
前記旋回体上の後側に設けたカウンタウエイトと、
前記旋回体上の前記運転室と前記カウンタウエイトとの間を覆う建屋カバーと、
この建屋カバー内に設けたファンと、
前記建屋カバー内に設け前記ファンの回転により起こされる冷却風を受ける位置に配置した熱交換器と、
この熱交換器のそれぞれ上流側に設けた防塵用ネットとを備えてなる建設機械の熱交換装置において、
前記防塵用ネットは、
枠部と、
この枠部の内側に張られたネット部と、
前記枠部の上部に取り付けた取手部と、
この取手部と一体に設けた第1の係止部と、
前記枠部の下部に取り付けた第2の係止部とを備え、
前記第1の係止部及び前記第2の係止部は、
前記熱交換器を支持する支持枠部材に備えた被係止部に対しそれぞれ係止可能に設けられ、前記第1の係止部及び前記第2の係止部のそれぞれにおける端部に曲折部を備え、
この曲折部及び前記被係止部のうち少なくとも一方に弾性部材を備え、
前記曲折部と前記被係止部とが前記弾性部材を介して嵌合するように前記曲折部における凹部寸法に対し、前記被係止部における凸部寸法を同等もしくは大きく設定したことを特徴とする建設機械の熱交換装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09716534A EP2256257A4 (en) | 2008-03-06 | 2009-03-04 | HEAT EXCHANGE DEVICE FOR CONSTRUCTION EQUIPMENT |
CN2009801077402A CN101965428A (zh) | 2008-03-06 | 2009-03-04 | 工程机械的热交换装置 |
US12/920,529 US20110000637A1 (en) | 2008-03-06 | 2009-03-04 | Heat Exchanging Device for Construction Machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-056415 | 2008-03-06 | ||
JP2008056415A JP2009209647A (ja) | 2008-03-06 | 2008-03-06 | 建設機械の熱交換装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009110508A1 true WO2009110508A1 (ja) | 2009-09-11 |
Family
ID=41056061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/054074 WO2009110508A1 (ja) | 2008-03-06 | 2009-03-04 | 建設機械の熱交換装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110000637A1 (ja) |
EP (1) | EP2256257A4 (ja) |
JP (1) | JP2009209647A (ja) |
CN (1) | CN101965428A (ja) |
WO (1) | WO2009110508A1 (ja) |
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CN109853658A (zh) * | 2019-03-21 | 2019-06-07 | 柳州柳工挖掘机有限公司 | 散热器除尘系统及作业机械 |
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JP5449517B1 (ja) * | 2012-12-20 | 2014-03-19 | 株式会社小松製作所 | 作業車両 |
JP6338821B2 (ja) * | 2013-03-28 | 2018-06-06 | 住友建機株式会社 | 建設機械 |
JP6058448B2 (ja) * | 2013-03-28 | 2017-01-11 | 住友建機株式会社 | 建設機械 |
GB2531769B (en) * | 2014-10-29 | 2019-11-13 | Bamford Excavators Ltd | A Counterweight Assembly |
KR102612074B1 (ko) * | 2017-02-17 | 2023-12-11 | 엘에스엠트론 주식회사 | 라디에이터 방진 장치를 포함하는 차량 |
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EP2311681A1 (en) * | 2009-10-16 | 2011-04-20 | Hitachi Construction Machinery Co., Ltd. | Construction machine |
CN109853658A (zh) * | 2019-03-21 | 2019-06-07 | 柳州柳工挖掘机有限公司 | 散热器除尘系统及作业机械 |
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Also Published As
Publication number | Publication date |
---|---|
US20110000637A1 (en) | 2011-01-06 |
EP2256257A4 (en) | 2011-05-18 |
EP2256257A1 (en) | 2010-12-01 |
CN101965428A (zh) | 2011-02-02 |
JP2009209647A (ja) | 2009-09-17 |
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