JPH0323188U - - Google Patents
Info
- Publication number
- JPH0323188U JPH0323188U JP8277389U JP8277389U JPH0323188U JP H0323188 U JPH0323188 U JP H0323188U JP 8277389 U JP8277389 U JP 8277389U JP 8277389 U JP8277389 U JP 8277389U JP H0323188 U JPH0323188 U JP H0323188U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- swing
- hydraulic motor
- return pipe
- pressure oil
- 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
- 238000010586 diagram Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
Landscapes
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
Description
第１図はこの考案のブレーキ回路の一実施例を
示す図、第２図はクレーンの一例を示す側面図、
第３図は従来の旋回装置のブレーキ回路を示す図
である。
１……走行体、２……旋回体、５……旋回用油
圧モータ、６……旋回減速機、９……ブレーキシ
リンダ、１０……ばね、１１……ブレーキ板、１
３……コントロールバルブ、１４……油圧源、１
６……戻り管路、１７……油タンク、１９……可
変絞り。
Fig. 1 is a diagram showing an embodiment of the brake circuit of this invention, Fig. 2 is a side view showing an example of the crane,
FIG. 3 is a diagram showing a brake circuit of a conventional swing device. DESCRIPTION OF SYMBOLS 1... Traveling body, 2... Swinging body, 5... Hydraulic motor for swinging, 6... Swinging reducer, 9... Brake cylinder, 10... Spring, 11... Brake plate, 1
3...Control valve, 14...Hydraulic power source, 1
6... Return pipe line, 17... Oil tank, 19... Variable throttle.
Claims (1)
圧モータの制動が解除され、ブレーキシリンダの
圧油を戻り管路を通して油タンクに排出させると
バネにより旋回用油圧モータが制動される旋回装
置をそなえたクレーンにおいて、前記戻り管路に
流量制御弁を設けたことを特徴とする旋回装置の
ブレーキ回路。 A crane equipped with a swing device in which the brake of the swing hydraulic motor is released when pressure oil is supplied to the brake cylinder, and the swing hydraulic motor is braked by a spring when the pressure oil in the brake cylinder is discharged into the oil tank through a return pipe. 2. A brake circuit for a swing device according to claim 1, wherein a flow control valve is provided in the return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8277389U JPH0323188U (en) | 1989-07-13 | 1989-07-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8277389U JPH0323188U (en) | 1989-07-13 | 1989-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0323188U true JPH0323188U (en) | 1991-03-11 |
Family
ID=31629879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8277389U Pending JPH0323188U (en) | 1989-07-13 | 1989-07-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0323188U (en) |
-
1989
- 1989-07-13 JP JP8277389U patent/JPH0323188U/ja active Pending