JPS6216336Y2 - - Google Patents
Info
- Publication number
- JPS6216336Y2 JPS6216336Y2 JP1981045231U JP4523181U JPS6216336Y2 JP S6216336 Y2 JPS6216336 Y2 JP S6216336Y2 JP 1981045231 U JP1981045231 U JP 1981045231U JP 4523181 U JP4523181 U JP 4523181U JP S6216336 Y2 JPS6216336 Y2 JP S6216336Y2
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- valve
- steering
- flow control
- control valve
- 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 9
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Motor Power Transmission Devices (AREA)
- Mechanical Operated Clutches (AREA)
- Arrangement Of Transmissions (AREA)
Description
【考案の詳細な説明】
この考案はステアリングバルブ及びクラツチブ
ースタの戻り油によりクラツチを冷却するように
した産業車両のクラツチ冷却装置に関する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a clutch cooling system for an industrial vehicle in which the clutch is cooled by return oil from the steering valve and clutch booster.
動力系にクラツチを設けた産業車両において
は、クラツチフエーシングの寿命を向上させる目
的でクラツチを油てい冷却している。従来ではこ
のクラツチの冷却をステアリングバルブの戻り油
で冷却しているが、油量が不足するため、十分な
冷却効果が得られない欠点があつた。 In industrial vehicles equipped with a clutch in the power system, the clutch is cooled with oil in order to extend the life of the clutch facing. In the past, this clutch was cooled using return oil from the steering valve, but this had the disadvantage that sufficient cooling effect could not be obtained due to the insufficient amount of oil.
この考案はかかる欠点を除去する目的でなされ
たもので、ステアリングバルブからの戻り油とク
ラツチブースタからの戻り油を合流させて、この
油でクラツチを冷却するようにした産業車両のク
ラツチ冷却装置を提供して、十分な冷却効果が得
られるようにしたものである。 This invention was made with the aim of eliminating such drawbacks, and was designed to provide a clutch cooling system for industrial vehicles in which return oil from the steering valve and return oil from the clutch booster are combined to cool the clutch with this oil. It is designed to provide a sufficient cooling effect.
以下この考案をフオークリフトトラツクなどの
産業車両に実施した例について詳述する。図にお
いて１は図示しない産業車両に搭載されたエンジ
ンで、このエンジン１により２個の油圧ポンプ２
及び３が同時に駆動される。一方の油圧ポンプ２
より吐出された油圧は作業機操作弁４を介して作
業機シリンダ５へ供給されると共に、他方の油圧
ポンプ３より吐出された油圧は流量調整弁６によ
り流量調整された後流量制御弁７へ供給され、こ
こで２路に分流される。分流された一方は管路８
によりステアリングバルブ９を介してアテアリン
グシリンダ１０へ供給され、余剰となつた油は戻
り油として管路１１へ排出される。また分流され
た他方は管路１４を介してクラツチブースタ１２
へ供給され、クラツチ１３の断続操作に使用され
ると共に、余剰となつた油は戻り油として上記管
路１１へ合流され、さらにクラツチ１３を冷却し
た後タンク１５へドレンされる。 An example in which this invention is applied to an industrial vehicle such as a forklift truck will be described in detail below. In the figure, 1 is an engine mounted on an industrial vehicle (not shown), and this engine 1 drives two hydraulic pumps 2.
and 3 are driven simultaneously. One hydraulic pump 2
The hydraulic pressure discharged from the other hydraulic pump 3 is supplied to the work machine cylinder 5 via the work machine operation valve 4, and the hydraulic pressure discharged from the other hydraulic pump 3 is adjusted in flow rate by the flow rate adjustment valve 6 and then sent to the flow rate control valve 7. It is then split into two routes. The branched side is pipe 8
The excess oil is supplied to the steering cylinder 10 via the steering valve 9, and excess oil is discharged to the pipe line 11 as return oil. The other branched flow is passed through a pipe 14 to a clutch booster 12.
The excess oil is supplied to the pipe 11 as return oil, and is drained to the tank 15 after cooling the clutch 13.
この考案は以上詳述したように、油圧ポンプ３
の吐出側に流量制御弁７を接続して、油圧ポンプ
３の吐出圧を２路に分流し、一方は流量制御弁７
とステアリングバルブ９の間を接続する管路８に
よりステアリングバルブ９を介してステアリング
シリンダ１０へ、また他方は流量制御弁７とクラ
ツチブースタ１２を接続する管路１４によりクラ
ツチブースタ１２へそれぞれ供給するようになす
と共に、上記ステアリングバルブ９からの戻り管
路１１とクラツチブースタ１２の戻り管路１２を
合流させてクラツチ１３の冷却系に接続するよ塁
うしたことから、クラツチ１３の冷却に必要な十
分な油量が確保できるため、冷却効果の向上とク
ラツチフエーシングの寿命向上が図れると共に、
クラツチブースタ１２からの戻り油を有効利用で
きるようになる。また流量制御弁７で分流した油
を、ステアリングバルブ９及びクラツチブースタ
１２へ夫々供給するようにしたことから、両者を
同時操作した場合でも互に影響し合つて機能が低
下するなどの不具合も生じない。 As described above, this device uses a hydraulic pump 3
A flow control valve 7 is connected to the discharge side of the hydraulic pump 3, and the discharge pressure of the hydraulic pump 3 is divided into two paths. One of the paths is connected to the flow control valve 7.
The first oil is supplied to the steering cylinder 10 via the steering valve 9 through a line 8 connecting the flow control valve 7 and the steering valve 9, and the other is supplied to the clutch booster 12 through a line 14 connecting the flow control valve 7 and the clutch booster 12. The return line 11 from the steering valve 9 and the return line 12 of the clutch booster 12 are joined together and connected to the cooling system of the clutch 13. This ensures a sufficient amount of oil to cool the clutch 13, thereby improving the cooling effect and the life of the clutch facing.
This makes it possible to effectively utilize the return oil from the clutch booster 12. Also, because the oil divided by the flow control valve 7 is supplied to both the steering valve 9 and the clutch booster 12, there is no problem such as a decrease in function due to mutual influence even when both are operated simultaneously.
図面はこの考案の一実施例を示す回路図であ
る。
３は油圧ポンプ、７は流量制御弁、９はステア
リングバルブ、１０はステアリングシリンダ、１
２はクラツチブースタ、１３はクラツチ。
The drawing is a circuit diagram showing an embodiment of this invention. 3 is a hydraulic pump, 7 is a flow control valve, 9 is a steering valve, 10 is a steering cylinder, 1
2 is the clutch booster, 13 is the clutch.
Claims (1)
て、油圧ポンプ３の吐出圧を２路に分流し、一方
は流量制御弁７とステアリングバルブ９の間を接
続する管路８によりステアリングバルブ９を介し
てステアリングシリンダ１０へ、また他方は流量
制御弁７とクラツチブースタ１２を接続する管路
１４によりクラツチブースタ１２へそれぞれ供給
するようになすと共に、上記ステアリングバルブ
９からの戻り管路１１とクラツチブースタ１２の
戻り管路１２を合流させてクラツチ１３の冷却系
に接続してなる産業車両のクラツチ冷却装置。 A flow control valve 7 is connected to the discharge side of the hydraulic pump 3, and the discharge pressure of the hydraulic pump 3 is divided into two paths, one of which is connected to the steering valve by a pipe 8 connecting between the flow control valve 7 and the steering valve 9. 9 to the steering cylinder 10, and the other to the clutch booster 12 via a conduit 14 connecting the flow control valve 7 and the clutch booster 12, and a return conduit 11 from the steering valve 9. A clutch cooling system for an industrial vehicle in which return pipes 12 of clutch boosters 12 are merged and connected to a cooling system of a clutch 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981045231U JPS6216336Y2 (en) | 1981-04-01 | 1981-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981045231U JPS6216336Y2 (en) | 1981-04-01 | 1981-04-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57159820U JPS57159820U (en) | 1982-10-07 |
| JPS6216336Y2 true JPS6216336Y2 (en) | 1987-04-24 |
Family
ID=29842129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981045231U Expired JPS6216336Y2 (en) | 1981-04-01 | 1981-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6216336Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814028U (en) * | 1981-07-20 | 1983-01-28 | 株式会社豊田自動織機製作所 | Oil clutch car hydraulic circuit |
| JP2522372Y2 (en) * | 1990-07-03 | 1997-01-16 | 東洋運搬機株式会社 | Working fluid cooling system for cargo handling vehicles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515868U (en) * | 1974-06-29 | 1976-01-16 |
-
1981
- 1981-04-01 JP JP1981045231U patent/JPS6216336Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515868U (en) * | 1974-06-29 | 1976-01-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57159820U (en) | 1982-10-07 |
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