JPS63198682U - - Google Patents
Info
- Publication number
- JPS63198682U JPS63198682U JP8757087U JP8757087U JPS63198682U JP S63198682 U JPS63198682 U JP S63198682U JP 8757087 U JP8757087 U JP 8757087U JP 8757087 U JP8757087 U JP 8757087U JP S63198682 U JPS63198682 U JP S63198682U
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- pressure
- excavator
- adjustment valve
- adjusts
- 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.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 3
- 238000009412 basement excavation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案による掘削機の一実施例を示す
油圧電気回路図、第２図は該実施例を適用する掘
削機の一例を示す側面図、第３図は該実施例のバ
ケツトの側面図、第４図および第５図は該実施例
の圧力調整弁および流量調整弁の特性図、第６図
は従来の掘削機の油圧回路図である。
Fig. 1 is a hydraulic electric circuit diagram showing an embodiment of an excavator according to the present invention, Fig. 2 is a side view showing an example of an excavator to which the embodiment is applied, and Fig. 3 is a side view of a bucket of the embodiment. 4 and 5 are characteristic diagrams of the pressure regulating valve and flow regulating valve of the embodiment, and FIG. 6 is a hydraulic circuit diagram of a conventional excavator.
Claims (1)
掘削具を有する掘削機において、前記流体圧モー
タへの作動流体の圧力を調整する圧力調整弁と、
流量を調整する流量調整弁とを備えると共に、前
記圧力調整弁の設定圧力および前記流量調整弁の
設定流量を単独あるいは連動して可変する操作装
置を備えたことを特徴とする掘削能力調整手段を
有する掘削機。 In an excavator having a rotary excavator that uses a fluid pressure motor as a drive device, a pressure regulating valve that adjusts the pressure of working fluid to the fluid pressure motor;
An excavation capacity adjustment means comprising: a flow rate adjustment valve that adjusts the flow rate; and an operating device that varies the set pressure of the pressure adjustment valve and the set flow rate of the flow rate adjustment valve, either alone or in conjunction with each other. Excavator with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987087570U JPH0447274Y2 (en) | 1987-06-08 | 1987-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987087570U JPH0447274Y2 (en) | 1987-06-08 | 1987-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63198682U true JPS63198682U (en) | 1988-12-21 |
| JPH0447274Y2 JPH0447274Y2 (en) | 1992-11-09 |
Family
ID=30944907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987087570U Expired JPH0447274Y2 (en) | 1987-06-08 | 1987-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447274Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4979003U (en) * | 1972-10-23 | 1974-07-09 | ||
| JPS6153996A (en) * | 1984-08-21 | 1986-03-18 | 日立建機株式会社 | Control apparatus in earth drill |
| JPS6153995A (en) * | 1984-08-21 | 1986-03-18 | 日立建機株式会社 | Control apparatus in earth drill |
| JPS6168161U (en) * | 1984-10-11 | 1986-05-10 |
-
1987
- 1987-06-08 JP JP1987087570U patent/JPH0447274Y2/ja not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4979003U (en) * | 1972-10-23 | 1974-07-09 | ||
| JPS6153996A (en) * | 1984-08-21 | 1986-03-18 | 日立建機株式会社 | Control apparatus in earth drill |
| JPS6153995A (en) * | 1984-08-21 | 1986-03-18 | 日立建機株式会社 | Control apparatus in earth drill |
| JPS6168161U (en) * | 1984-10-11 | 1986-05-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0447274Y2 (en) | 1992-11-09 |
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