JPS6245054Y2 - - Google Patents
Info
- Publication number
- JPS6245054Y2 JPS6245054Y2 JP1980179037U JP17903780U JPS6245054Y2 JP S6245054 Y2 JPS6245054 Y2 JP S6245054Y2 JP 1980179037 U JP1980179037 U JP 1980179037U JP 17903780 U JP17903780 U JP 17903780U JP S6245054 Y2 JPS6245054 Y2 JP S6245054Y2
- Authority
- JP
- Japan
- Prior art keywords
- radiator
- vent
- bonnet
- closing wall
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
【考案の詳細な説明】
この考案は、主に移動用作業機例えばバツクホ
ー等のエンジン駆動部に設けたラジエターについ
ての冷却構造に関するものである。[Detailed Description of the Invention] This invention mainly relates to a cooling structure for a radiator provided in an engine drive unit of a mobile working machine such as a backhoe.
従来、この種の作業機におけるラジエターの冷
却構造は、ボンネツトに設けた通気口にラジエタ
ーを対向して設け、かつ同ラジエターの背面に冷
却フアンを対向させて、この冷却フアンによる送
風がラジエターを通過して上記ボンネツトの通気
口から排出するようにし、このときの通風により
ラジエターを空冷させるようにしている。ところ
がラジエターとボンネツトとの間には両者の干渉
を防止させるため空間が設けられており、このた
め冷却フアンからの送風でラジエターを通過した
熱風が一部その空間から拡散し、これが再びフア
ンによつてラジエターに送風されるという熱風の
循還が生じて効果的な冷却が行えないという欠点
がある。 Conventionally, the radiator cooling structure for this type of work machine has been to install a radiator facing a vent provided in the bonnet, and a cooling fan to face the back of the radiator, so that the air blown by the cooling fan passes through the radiator. The air is then discharged from the vent in the bonnet, and the ventilation at this time cools the radiator. However, a space is provided between the radiator and the bonnet to prevent interference between the two, so some of the hot air that passes through the radiator from the cooling fan diffuses from that space, and is then returned to the bonnet by the fan. The drawback is that hot air circulates through the radiator, making it impossible to achieve effective cooling.
そこで本案では、旋回機台３上にエンジン１０
と別体にラジエター１１を載置固定すると共に、
通気口１３を有するボンネツト８壁面を傾斜状と
して、ラジエター１１との間の間隙が下方に向つ
て漸次大となるようにし、しかも通気口１３の外
周縁部に方形の環状に形成した弾性体の閉塞壁１
４を接着固定すると共に、同閉塞壁１４のラジエ
ター１１側の端面はラジエター１１の周縁部に圧
着自在として同閉塞壁１４でラジエター１１のコ
ア部を囲む状態とし、通気口１３とラジエター１
１との間における空間Ｓを、方形環状の閉塞壁１
４で囲繞すべく構成してなるラジエターの冷却構
造を提供せんとするものである。以下本案を図面
に示す実施例に基づき説明する。Ａは本案の冷却
構造を備えたバツクホーであり、クローラ走行装
置１を設けた走行機体２上に旋回機台３を支持さ
せ、同旋回機台３の前端に主ブーム４、中間ブー
ム５、バケツト６を屈曲自在に連設させた掘削装
置Ｋを装備させ、かつ機台３の中央部に運転席キ
ヤビン７を設けるとともに、機台３の後部一側に
ボンネツト８により被覆したエンジン駆動部９を
設けている。尚１０で示すものはエンジン駆動部
９に設けたエンジン、１１はラジエター、又１２
はエンジン１０に連動連設させた冷却フアンであ
り、ラジエター１１の背面に対向させている。 Therefore, in this proposal, the engine 10 is mounted on the rotating machine stand 3.
While mounting and fixing the radiator 11 separately from the
The wall surface of the bonnet 8 having the vent hole 13 is sloped so that the gap between it and the radiator 11 gradually increases downward. Blocking wall 1
At the same time, the end face of the closing wall 14 on the side of the radiator 11 can be press-fitted to the peripheral edge of the radiator 11 so that the closing wall 14 surrounds the core of the radiator 11.
The space S between 1 and 1 is a square annular blocking wall 1.
The present invention aims to provide a cooling structure for a radiator, which is configured to be surrounded by a radiator. The present invention will be explained below based on embodiments shown in the drawings. A is a bucket hoe equipped with the cooling structure of the present invention, in which a swinging machine base 3 is supported on a traveling machine body 2 provided with a crawler traveling device 1, and a main boom 4, an intermediate boom 5, and a bucket trolley are mounted on the front end of the swinging machine base 3. 6 are connected in a flexible manner, and a driver's seat cabin 7 is provided in the center of the machine base 3, and an engine drive unit 9 covered with a bonnet 8 is provided on one side of the rear part of the machine base 3. It is set up. Note that 10 indicates an engine installed in the engine drive section 9, 11 indicates a radiator, and 12 indicates
A cooling fan is connected to the engine 10 and is opposed to the back of the radiator 11.
第２図は本案の冷却構造を示す側面図であり、
略平面状のボンネツト８の後壁８′に通気口１３
をよろい戸状に形成し、同通気口１３に対向させ
てラジエター１１を設け、かつ同通気口１３とラ
ジエター１１との対向面１３′，１１′間に空間Ｓ
を介在させ、そしてラジエター１１の周縁と通気
口１３の同縁との間弾性体による閉塞壁１４を介
設させて構成されている。尚この閉塞壁１４には
耐熱性材質を用いるものであり、本実施例ではウ
レタンを用いて、これを方形の環状に形成させ、
そしてこれを接着剤により上記通気口１３を囲ん
だ状態でボンネツト８の内面に接着させるととも
に、ボンネツト８をエンジン駆動部９に被覆させ
た状態において、この閉塞壁１４によりラジエタ
ー１１のコア部を囲むようにさせている。 FIG. 2 is a side view showing the cooling structure of the present invention.
A ventilation hole 13 is provided in the rear wall 8' of the substantially planar bonnet 8.
is formed in the shape of a shutter, and the radiator 11 is provided opposite the vent 13, and a space S is provided between the opposing surfaces 13' and 11' of the vent 13 and the radiator 11.
and a closing wall 14 made of an elastic body is interposed between the peripheral edge of the radiator 11 and the same edge of the vent 13. Note that this closing wall 14 is made of a heat-resistant material, and in this embodiment, urethane is used, and it is formed into a rectangular ring shape.
Then, this is adhered to the inner surface of the bonnet 8 with an adhesive in a state surrounding the vent hole 13, and the core part of the radiator 11 is surrounded by the closing wall 14 while the bonnet 8 is covered with the engine drive part 9. I'm making you do that.
従つて、フアン１２からの送風がラジエター１
１を通過する時点においてラジエター１１を空冷
させることになるが、この場合通気口１３とラジ
エター１１との間における空間Ｓが、その外周を
全て閉塞壁１４により囲まれた状態にあることか
ら、この状態ではフアン１２による送風でラジエ
ター１１のコア部を通過した熱風が空間Ｓからボ
ンネツト８内に拡散するといつたことはなく、ラ
ジエター１１を通過したのちは全てボンネツト８
の通気口１３から外気に排出されることになるも
のであり、特に、通気口１３を有するボンネツト
８壁面とラジエター１１との間の間隙を下方に向
つて漸次大としたことから、次のような特有の作
用効果を有するものである。 Therefore, the air blown from the fan 12 is directed to the radiator 1.
1, the radiator 11 is cooled by air, but in this case, the space S between the vent 13 and the radiator 11 is surrounded by the closing wall 14 on its entire outer periphery. In this state, the hot air that has passed through the core of the radiator 11 by the fan 12 never diffuses from the space S into the bonnet 8, and after passing through the radiator 11, all the hot air flows through the bonnet 8.
In particular, since the gap between the radiator 11 and the wall of the bonnet 8 having the vent 13 is gradually enlarged downward, the following is achieved. It has unique functions and effects.
すなわち、ラジエター１１は、上部がエンジン
１０から高温の冷却水が流入するため高温で、従
つて冷却排風も高温であり、下方に行くに従つて
ラジエター１１及び冷却排風が上部よりも低温と
なるものである。 That is, the upper part of the radiator 11 is at a high temperature because high-temperature cooling water flows in from the engine 10, and therefore the cooling exhaust air is also high temperature, and as it goes downward, the radiator 11 and the cooling exhaust air become lower in temperature than the upper part. It is what it is.
また、ラジエター１１とボンネツト８壁面との
間隙は、同間隙を狭めるとラジエター１１とボン
ネツト壁面８間に干渉抵抗が発生して排風効率が
悪化するので同間隙を広くとる必要がある。 Further, the gap between the radiator 11 and the wall surface of the bonnet 8 needs to be widened because if the gap is narrowed, interference resistance will occur between the radiator 11 and the wall surface 8 of the bonnet, and the air exhaust efficiency will deteriorate.
更に、冷却フアン１２の風力は同フアン１２の
前面に一様に分布しておらず、周縁部の方が中心
部よりも風力が強いものであり、ラジエター１１
上部の高温の部分が冷却フアン１２の風力が強い
部分と対向している。 Furthermore, the wind force of the cooling fan 12 is not uniformly distributed over the front surface of the fan 12, and the wind force is stronger at the periphery than at the center.
The upper high temperature part faces the part of the cooling fan 12 where the wind force is strong.
従つて、空間Ｓに流入する冷却排風は、上部で
は高温で風力大、中央部では中温で風力小、下部
では低温で風力大という分布としており、同空間
Ｓ内で乱流を生じて上部の高温の冷却排風が同空
間Ｓの内部全般に拡散して熱気が滞溜するという
不具合があり、この不具合をなくすためにはラジ
エター１１とボンネツト８壁面との間隙を狭くす
る必要がある。 Therefore, the cooling exhaust air flowing into the space S has a distribution of high temperature and high wind power at the top, medium temperature and low wind power at the center, and low temperature and high wind power at the bottom. There is a problem that the high-temperature cooling exhaust air diffuses throughout the interior of the space S and hot air accumulates, and in order to eliminate this problem, it is necessary to narrow the gap between the radiator 11 and the wall surface of the bonnet 8.
ところが、前述したように上記間隙を狭くする
と干渉抵抗が生じて排風効率が低下するものであ
るから、空間Ｓはかかる二律背反する条件を満足
させる必要があるが、本考案では、通気口１３を
有するボンネツト８壁面を傾斜状として、ラジエ
ター１１との間の間隙が下方に向つて漸次大とな
るようにしたことで、空間Ｓ上部の同間隙を狭く
して高温の冷却排風を同空間Ｓから速かに排出さ
せることができ、中央部では同間隙が中程度であ
るが風力が小さいので大きな干渉抵抗が発生せ
ず、下部では同間隙を広くして干渉抵抗をなくし
排気効率を高めることにより、高温熱気の拡散を
防止しながら、干渉抵抗を可及的に減少させて、
総合的に熱気の排出を高めるという効果がある。
また閉塞壁１４は方形環状に形成され、ボンネツ
ト８の通気口１３外周縁部に接着固定され、しか
も、ラジエー１１は機台にエンジン１０と別体に
載置固定されているものであるから、ボンネツト
８の開閉作動を行う場合にも、ボンネツト８の閉
蓋作動時に、閉塞壁１４のラジエター側の端面は
自動的にラジエター１１の周縁部に圧着されて、
ボンネツト８の閉塞作動時に何ら支障なく確実に
ラジエター１１のコア部を閉塞壁１４で囲む状態
とすることができ、従つて、通気口１３と、ラジ
エター１１との間の空間Ｓが簡単・確実に方形状
の閉塞壁１４で囲繞されて、熱風の排出効率をよ
り向上できることになるものである。 However, as mentioned above, if the gap is narrowed, interference resistance will occur and the ventilation efficiency will decrease, so the space S needs to satisfy these contradictory conditions. By making the wall surface of the bonnet 8 sloped so that the gap between it and the radiator 11 gradually increases downward, the gap at the top of the space S is narrowed to direct high temperature cooling exhaust air to the space S. In the center part, the gap is medium, but the wind force is small, so no large interference resistance occurs, and in the lower part, the gap is widened to eliminate interference resistance and improve exhaust efficiency. This reduces interference resistance as much as possible while preventing the diffusion of high-temperature hot air.
This has the effect of increasing the exhaust of hot air overall.
Further, since the closing wall 14 is formed in a rectangular ring shape and is adhesively fixed to the outer peripheral edge of the vent 13 of the bonnet 8, and the radiator 11 is mounted and fixed on the machine base separately from the engine 10, When the bonnet 8 is opened and closed, the end face of the closing wall 14 on the radiator side is automatically crimped to the peripheral edge of the radiator 11 when the bonnet 8 is closed.
When the bonnet 8 is closed, the core portion of the radiator 11 can be reliably surrounded by the closing wall 14 without any hindrance, and therefore the space S between the vent 13 and the radiator 11 can be easily and reliably closed. It is surrounded by a rectangular blocking wall 14 to further improve hot air discharge efficiency.
上述のように本案によれば、ラジエターとボン
ネツトとの間における空間を弾性体による閉塞壁
で囲繞させたので、従来とは異なりラジエターを
通過した熱風が再び循還してラジエターに送風さ
れるといつた不都合がなく、ラジエターを通過し
たのちは全て通気口から外気に排出され、しかも
閉塞壁に弾性体を用いたので、ボンネツトとラジ
エターとの間における振動、衝撃を吸収させなが
らも効果的な冷却を行わせることができ、しかも
通気口とラジエターとの間の空間が下方程大とな
つているので、ラジエター上部からの高音の冷却
排風を速かに機外に排出すると共に、同中央部か
ら下部にかけての比較的低温の冷却排風は少ない
抵抗で効率よく機外に排出して総合的に熱気の排
気効率を良好にし、また、ラジエターがエンジン
別体に機台に載置固定され、しかも閉塞壁が方形
環状に形成されて、通気口の外周縁部に接着固定
され、同時に閉塞かへの端面はラジエター周縁部
に圧着自在であるから、通常ボンネツトは開閉作
動を行うものであるが、ボンネツトの閉蓋作動を
行う際に必然的に閉塞壁をラジエターの周縁部に
圧着でき、簡単なる構造にもかかわらず、確実に
ラジエターから通気孔に至る熱風通過路としての
空間を形成することができ、同時に閉塞壁の密封
性も高めうることができるという効果がある。 As mentioned above, according to the present invention, the space between the radiator and the bonnet is surrounded by a closing wall made of an elastic material, so that unlike conventional methods, the hot air that has passed through the radiator is circulated again and is blown to the radiator. After passing through the radiator, everything is discharged to the outside air from the vent, and since an elastic material is used for the closing wall, it is effective while absorbing vibrations and shocks between the bonnet and the radiator. Moreover, since the space between the vent and the radiator becomes larger toward the bottom, the high-pitched cooling exhaust air from the top of the radiator can be quickly discharged to the outside of the aircraft, and the center The relatively low-temperature cooling exhaust air from the top to the bottom is efficiently discharged to the outside of the machine with little resistance, improving overall hot air exhaust efficiency.In addition, the radiator is mounted and fixed on the machine base separately from the engine. Moreover, the closing wall is formed into a rectangular ring shape and is adhesively fixed to the outer periphery of the vent, and at the same time, the end face of the closing wall can be press-fitted to the radiator periphery, so that the bonnet normally opens and closes. However, when the bonnet is closed, the closing wall can inevitably be pressed against the periphery of the radiator, and despite its simple structure, it reliably forms a space as a hot air passageway from the radiator to the ventilation holes. This has the effect that the sealing performance of the closing wall can be improved at the same time.
第１図は本案実施例のバツクホーを示す全体側
面図、第２図は冷却構造の側面図、第３図は第２
図−線による矢視図である。
Ａ……バツクホー、８……ボンネツト、１１…
…ラジエター、１２……冷却フアン、１３……通
気口、１４……閉塞壁、Ｓ……空間。
Figure 1 is an overall side view of the vacuum cleaner according to the embodiment of the present invention, Figure 2 is a side view of the cooling structure, and Figure 3 is a side view of the cooling structure.
FIG. A...Buckhoe, 8...Bonnet, 11...
...Radiator, 12...Cooling fan, 13...Vent, 14...Closing wall, S...Space.
Claims (1)
１１を対向して設け、かつ同ラジエター１１の背
面に冷却フアン１２を対向させて、同冷却フアン
１２による送風がラジエター１１を通過して上記
通気口１３から排出するようにしてものにおい
て、旋回機台３上にエンジン１０と別体にラジエ
ター１１を載置固定すると共に、通気口１３を有
するボンネツト８壁面を傾斜状として、ラジエタ
ー１１との間の間隙が下方に向つて漸次大となる
ようにし、しかも通気口１３の外周縁部に方形の
環状に形成した弾性体の閉塞壁１４を接着固定す
ると共に、同閉塞壁１４のラジエター１１側の端
面は、ラジエター１１の周縁部に圧着自在として
同閉塞壁１４でラジエター１１のコア部を囲む状
態とし、通気口１３とラジエター１１との間にお
ける空間Ｓを、方形環状の閉塞壁１４で囲繞すべ
く構成してなるラジエターの冷却構造。 A radiator 11 is provided opposite to a vent 13 provided in the bonnet 8, and a cooling fan 12 is disposed opposite to the back of the radiator 11, so that the air blown by the cooling fan 12 passes through the radiator 11 and exits from the vent 13. In the case where the radiator 11 is mounted and fixed separately from the engine 10 on the swivel base 3, the wall surface of the bonnet 8 having the vent 13 is sloped so that the gap between it and the radiator 11 is A closing wall 14 made of an elastic body is adhesively fixed to the outer circumferential edge of the vent hole 13 so that the size gradually increases downward, and the end surface of the closing wall 14 on the radiator 11 side is The closing wall 14 can be press-fitted to the peripheral edge of the radiator 11 to surround the core of the radiator 11, and the space S between the vent 13 and the radiator 11 is surrounded by the square annular closing wall 14. Radiator cooling structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980179037U JPS6245054Y2 (en) | 1980-12-11 | 1980-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980179037U JPS6245054Y2 (en) | 1980-12-11 | 1980-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5799917U JPS5799917U (en) | 1982-06-19 |
| JPS6245054Y2 true JPS6245054Y2 (en) | 1987-12-01 |
Family
ID=29974365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980179037U Expired JPS6245054Y2 (en) | 1980-12-11 | 1980-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6245054Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007032477A (en) * | 2005-07-28 | 2007-02-08 | Shin Caterpillar Mitsubishi Ltd | Vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497534U (en) * | 1977-12-21 | 1979-07-10 | ||
| JPS5497535U (en) * | 1977-12-21 | 1979-07-10 |
-
1980
- 1980-12-11 JP JP1980179037U patent/JPS6245054Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5799917U (en) | 1982-06-19 |
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