JPS6336570U - - Google Patents
Info
- Publication number
- JPS6336570U JPS6336570U JP12756886U JP12756886U JPS6336570U JP S6336570 U JPS6336570 U JP S6336570U JP 12756886 U JP12756886 U JP 12756886U JP 12756886 U JP12756886 U JP 12756886U JP S6336570 U JPS6336570 U JP S6336570U
- Authority
- JP
- Japan
- Prior art keywords
- solenoid
- counterweight
- slide rail
- switch
- solenoid 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図は本考案旋回縮小装置の油圧回路、電気
回路および構成図、第２図および第３図は本考案
装置を装備した油圧シヨベルの全体側面図、第４
図は第３図のＣより見た平面図、第５図は従来技
術油圧シヨベルの全体側面図、第６図は第５図の
Ａより見た平面図である。
４，４′……カウンタウエイト、５，５′……
旋回フレーム、８，８′……後端部、１３……ス
ライド用シリンダ、１４，５０……電磁弁、１６
，２９……切換弁、２０……リミツトスイツチ。
Figure 1 is a hydraulic circuit, electric circuit, and configuration diagram of the swing reduction device of the present invention, Figures 2 and 3 are overall side views of a hydraulic excavator equipped with the device of the present invention, and Figure 4
The figure is a plan view seen from C in FIG. 3, FIG. 5 is an overall side view of a conventional hydraulic excavator, and FIG. 6 is a plan view seen from A in FIG. 5. 4, 4'... Counterweight, 5, 5'...
Swivel frame, 8, 8'... Rear end, 13... Slide cylinder, 14, 50... Solenoid valve, 16
, 29...Switching valve, 20...Limit switch.
Claims (1)
た建設機械において、カウンタウエイトにスライ
ドレールを固着して、そのスライドレールを旋回
フレームの案内桁部に摺動可能に嵌合し、また旋
回フレーム下方にスライド用シリンダを設け、そ
のピストンロツド側ボスを上記カウンタウエイト
の一端に枢着し、かつ油圧ポンプとスライド用シ
リンダとの油路中間に切換弁および電磁弁を直列
に配置せしめ、一方、ブーム基端部取付付近の旋
回フレームにリミツトスイツチを設置して、その
スイツチおよびソレノイドを有する電気回路を設
け、そのソレノイドと上記電磁弁の電磁作動部と
を連結し、ブーム上げ作動時にリミツトスイツチ
により電磁弁を切換作動可能とするとともに、上
記スライド用シリンダを縮小作動可能に構成した
ことを特徴とする建設機械の旋回縮小装置。 In construction machinery equipped with a counterweight at the rear of the upper revolving body, a slide rail is fixed to the counterweight, the slide rail is slidably fitted to the guide girder part of the revolving frame, and the slide rail is slid below the revolving frame. A cylinder is provided, whose piston rod side boss is pivotally connected to one end of the counterweight, and a switching valve and a solenoid valve are arranged in series in the middle of the oil path between the hydraulic pump and the slide cylinder. Install a limit switch on the revolving frame near the installation, provide an electric circuit with the switch and a solenoid, and connect the solenoid to the solenoid actuating part of the solenoid valve above, so that the limit switch can switch the solenoid valve when the boom is raised. A swing reduction device for construction machinery, characterized in that the slide cylinder is configured to be capable of reduction operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12756886U JPS6336570U (en) | 1986-08-20 | 1986-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12756886U JPS6336570U (en) | 1986-08-20 | 1986-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6336570U true JPS6336570U (en) | 1988-03-09 |
Family
ID=31022445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12756886U Pending JPS6336570U (en) | 1986-08-20 | 1986-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6336570U (en) |
-
1986
- 1986-08-20 JP JP12756886U patent/JPS6336570U/ja active Pending