JPH0333893U - - Google Patents
Info
- Publication number
- JPH0333893U JPH0333893U JP9464889U JP9464889U JPH0333893U JP H0333893 U JPH0333893 U JP H0333893U JP 9464889 U JP9464889 U JP 9464889U JP 9464889 U JP9464889 U JP 9464889U JP H0333893 U JPH0333893 U JP H0333893U
- Authority
- JP
- Japan
- Prior art keywords
- winch
- hoisting
- brake
- hydraulic circuit
- hydraulic
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fluid-Pressure Circuits (AREA)
- Control And Safety Of Cranes (AREA)
Description
第１図は本考案の第１実施例にかかるブレーキ
制御装置を備えた油圧駆動ウインチの作動系統図
、第２図は本考案の第２実施例にかかるブレーキ
制御装置を備えた油圧駆動ウインチの作動系統図
、第３図は、従来の油圧駆動ウインチの作動系統
図である。
１…ウインチ、２…ブレーキ装置、５…ブレー
キ解除制御装置、７…巻上回転検出器、１１…ウ
インチドラム、２５…ブレーキ操作装置、２７…
切換弁、３１…油圧ポンプ、３２…主制御弁、３
３…油圧モータ、３５…ウインチ駆動用油圧回路
、３６…ウインチ巻上側油圧回路、３７…ウイン
チ巻下側油圧回路。
FIG. 1 is an operating system diagram of a hydraulically driven winch equipped with a brake control device according to a first embodiment of the present invention, and FIG. 2 is an operational system diagram of a hydraulically driven winch equipped with a brake control device according to a second embodiment of the present invention. Operation System Diagram, FIG. 3 is an operation system diagram of a conventional hydraulically driven winch. DESCRIPTION OF SYMBOLS 1... Winch, 2... Brake device, 5... Brake release control device, 7... Hoisting rotation detector, 11... Winch drum, 25... Brake operating device, 27...
Switching valve, 31... Hydraulic pump, 32... Main control valve, 3
3... Hydraulic motor, 35... Winch drive hydraulic circuit, 36... Winch hoisting upper side hydraulic circuit, 37... Winch hoisting lower side hydraulic circuit.
Claims (1)
力を与える油圧モータ３３と、該油圧モータ３３
に対してウインチ巻上方向に圧力油を供給するウ
インチ巻上側油圧回路３６とウインチ巻下方向に
圧力油を供給するウインチ巻下側油圧回路３７と
をそなえたウインチ駆動用油圧回路３５と、前記
油圧ポンプ３１とウインチ駆動用油圧回路３５と
の間にあつて油圧ポンプ３１から油圧モータ３３
への圧力油の供給又は停止及び供給の方向を制御
する主制御弁３２と、前記油圧モータ３３の非駆
動時において前記ウインチドラム１１が巻下方向
に回動しようとするときには自動的にその回動を
禁止してこれに対して該ウインチドラム１１が巻
上方向に回動しようとするときにはその回動を許
容する如く構成されたブレーキ装置２と、前記ブ
レーキ装置２に対してそのブレーキ力を解除せし
める方向に作用するブレーキ操作装置２５とをそ
なえた油圧駆動ウインチにおいて、前記ウインチ
ドラム１１が巻上方向への回転を開始したときに
それを検知して巻上回転信号を発する巻上回転検
出器７をそなえ且つ前記主制御弁３２がウインチ
巻上方向側に操作されたときに前記巻上回転検出
器７からの巻上回転信号が供給されるに至つてか
ら前記ブレーキ操作装置２５を前記ブレーキ装置
２のブレーキ力が解除される方向に作動せしめる
べく作用するブレーキ解除制御装置５をそなえて
なる油圧駆動ウインチにおけるブレーキ制御装置
。 A hydraulic pump 31, a hydraulic motor 33 that provides rotational force to the winch drum 11, and the hydraulic motor 33.
a winch drive hydraulic circuit 35 comprising a winch upper hydraulic circuit 36 that supplies pressure oil in the winch upper direction and a winch lower hydraulic circuit 37 that supplies pressure oil in the winch lower direction; Between the hydraulic pump 31 and the winch drive hydraulic circuit 35, the hydraulic motor 33 is connected from the hydraulic pump 31 to the hydraulic circuit 35.
a main control valve 32 that controls the supply or stop of pressure oil and the direction of the supply; A brake device 2 is configured to prohibit the movement of the winch drum 11 and permit the rotation when the winch drum 11 tries to rotate in the hoisting direction, and a brake device 2 that applies the braking force to the brake device 2. A hoisting rotation detection system that detects when the winch drum 11 starts rotating in the hoisting direction and issues a hoisting rotation signal in a hydraulically driven winch equipped with a brake operating device 25 that acts in the release direction. When the main control valve 32 is operated in the winch hoisting direction and the hoisting rotation signal is supplied from the hoisting rotation detector 7, the brake operating device 25 is activated. A brake control device for a hydraulically driven winch, comprising a brake release control device 5 that operates in a direction in which the braking force of a brake device 2 is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9464889U JPH0711102Y2 (en) | 1989-08-11 | 1989-08-11 | Brake control device for hydraulic drive winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9464889U JPH0711102Y2 (en) | 1989-08-11 | 1989-08-11 | Brake control device for hydraulic drive winch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0333893U true JPH0333893U (en) | 1991-04-03 |
| JPH0711102Y2 JPH0711102Y2 (en) | 1995-03-15 |
Family
ID=31643967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9464889U Expired - Lifetime JPH0711102Y2 (en) | 1989-08-11 | 1989-08-11 | Brake control device for hydraulic drive winch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0711102Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011106684A (en) * | 2005-01-21 | 2011-06-02 | Pubot Giken:Kk | Locking device |
-
1989
- 1989-08-11 JP JP9464889U patent/JPH0711102Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011106684A (en) * | 2005-01-21 | 2011-06-02 | Pubot Giken:Kk | Locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0711102Y2 (en) | 1995-03-15 |
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