JPS61192984U - - Google Patents
Info
- Publication number
- JPS61192984U JPS61192984U JP7823685U JP7823685U JPS61192984U JP S61192984 U JPS61192984 U JP S61192984U JP 7823685 U JP7823685 U JP 7823685U JP 7823685 U JP7823685 U JP 7823685U JP S61192984 U JPS61192984 U JP S61192984U
- Authority
- JP
- Japan
- Prior art keywords
- grease
- cylinder
- pumps
- pump
- crawler tensioning
- 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.)
- Pending
Links
- 239000004519 grease Substances 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
図面は本考案に係る作業車のクローラ緊張装置
の実施例を示し、第１図は油圧回路を示す概略図
、第２図は作業車の全体側面図である。
７……アクチユエータ、１１……輪体、１６…
…グリスシリンダ、１８……グリスポンプ、１９
……グリスタンク、２０……逆止弁、２１……油
路、２２……逆止弁、２３……油路、２４……油
圧シリンダ、２８……切換弁、Ｐ……油圧ポンプ
。
The drawings show an embodiment of the crawler tensioning device for a working vehicle according to the present invention, with FIG. 1 being a schematic diagram showing a hydraulic circuit, and FIG. 2 being an overall side view of the working vehicle. 7...actuator, 11...ring body, 16...
... Grease cylinder, 18 ... Grease pump, 19
... Grease tank, 20 ... Check valve, 21 ... Oil path, 22 ... Check valve, 23 ... Oil path, 24 ... Hydraulic cylinder, 28 ... Switching valve, P ... Hydraulic pump.
Claims (1)
押圧するためのグリスシリンダ１６と、作業用ア
クチユエータ７に対する作動油のリリーフ圧でグ
リスを前記グリスシリンダ１６に供給するグリス
ポンプ１８を設けてある作業車のクローラ緊張装
置であつて、グリスタンク１９と２個の前記グリ
スポンプ１８，１８を前記グリスタンク１９から
各グリスポンプ１８へのグリンの流れを許容する
第１逆止弁２０付油路２１を介して接続し、前記
２個のグリスポンプ１８，１８と１個の前記グリ
スシリンダ１６を、前記各グリスポンプ１８から
グリスシリンダ１６へのグリスの流れを許容する
第２逆止弁２２付油路２３を介して接続し、前記
２個のグリスポンプ１８，１８のうち一方を前記
グリスシリンダ１６へのグリス供給状態に、他方
を前記グリスタンク１９からのグリス補充状態に
背反的に駆動するように、複動型の油圧シリンダ
２４を前記２個のグリスポンプ１８，１８と連動
連結し、前記油圧シリンダ２４とアクチユエータ
７用油圧ポンプＰとを、リリーフ圧による前記油
圧シリンダ２４の駆動方向を切換自在な切換弁２
８を介して接続してある作業車のクローラ緊張装
置。 A working vehicle is equipped with a grease cylinder 16 for pressing the crawler tensioning wheel 11 in the crawler tensioning direction, and a grease pump 18 that supplies grease to the grease cylinder 16 by the relief pressure of hydraulic oil for the working actuator 7. The crawler tensioning device connects a grease tank 19 and the two grease pumps 18, 18 through an oil passage 21 with a first check valve 20 that allows the flow of grease from the grease tank 19 to each grease pump 18. an oil passage 23 with a second check valve 22 that connects the two grease pumps 18, 18 and one grease cylinder 16 and allows grease to flow from each grease pump 18 to the grease cylinder 16; so as to drive one of the two grease pumps 18, 18 in a state of supplying grease to the grease cylinder 16 and the other in a state of replenishing grease from the grease tank 19, A double-acting hydraulic cylinder 24 is interlocked with the two grease pumps 18, 18, and the hydraulic cylinder 24 and the hydraulic pump P for the actuator 7 can be freely switched in the direction in which the hydraulic cylinder 24 is driven by relief pressure. Switching valve 2
The crawler tensioning device of the work vehicle is connected via 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7823685U JPS61192984U (en) | 1985-05-24 | 1985-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7823685U JPS61192984U (en) | 1985-05-24 | 1985-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61192984U true JPS61192984U (en) | 1986-12-01 |
Family
ID=30622032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7823685U Pending JPS61192984U (en) | 1985-05-24 | 1985-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61192984U (en) |
-
1985
- 1985-05-24 JP JP7823685U patent/JPS61192984U/ja active Pending
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