JPS5859194A - Hydraulic device for boom turning winch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hydraulic system that allows a boom to be easily rotated using a single hydraulic operation handle without requiring any skill.

Conventionally, for example, almost all of the approximately 550 saury fishing boats have been rotated by human power. A small number of ships used two hydraulically operated handles, making it impossible to maintain tension on the wires, even with great care and skill.

This invention requires at least two people, and in extreme cases four to five people, to operate the boom, even when a saury fishing boat is in extreme rolling motion at sea, or when unloading cargo at a port. The objective is to create a hydraulic system that can be operated safely and easily by one person.

To explain this invention based on the drawings, in FIG. 1, in order to turn the boom 1 to the left, the hydraulic operating handle 7 is moved and hydraulic oil is sent through the check pulp 8 to the hydraulic motor 50A, and the take-up reel is 4 winds up the wire 2 and the boom turns to the left.

The wire on the opposite side is pulled by the boom, causing the wheel B to rotate.

Oil motor B is rotated by reel B and acts as a pump, sucking in hydraulic oil from port d and discharging it from port d. The hydraulic oil leaving the d-boat is stopped by a check valve 8, generates pressure in a special hydraulic IJ 13 valve, and then returns to the tank T. This pressure gives tension to the wire. Since the left and right sides of pulley 3 are not equidistant from the boom position, the rotation speeds of motor A and motor B are different.
Because the circuit connects ports b and d and connects the tank T from the middle, hydraulic oil flowing from boat b to d flows to tank T when there is surplus, and when there is shortage, it flows to tank 11. The B motor functions normally as a pump without causing insufficient suction.

When turning to the right, move in the reverse order of this explanation.

When a heavy object is suspended from the end of a boom with a wire, the ship rolls and the boom swings from side to side.

When the boom is swung to the left due to lateral shaking while turning to the left, the A motor's pulling force becomes smaller and the pressure decreases. On the other hand, if it is swung to the right, the pulling force of the A motor will be large and the pressure will rise.

The special relief valve shown in Figure 2 operates as follows.

There is a needle valve 12 on the seat 11, and the needle valve has a spring 13,
The adjustment screw 14 is crimped onto the seat. The seat has a B port and an inlet 15, and an A port inlet 16, and their effective areas are equal.

When the A port pressure is 0, the B port pressure increases to the pressure set by the spring.

When the pressure at port A rises to the pressure set by the spring, the pressure at port B becomes zero.

When the cage has a large horizontal oscillation (when a large amount of tensile force is required, the braking force of the opposite wire is small; when the tensile force is small,
The braking force will be large.

As explained above, this invention installs this hydraulic system on a boom that was conventionally operated by hand, so that work that previously required many (skilled), overworked, and dangerous labor can now be done by one person. It has the effect of being able to be operated safely and quickly by a number of people.

[Brief explanation of the drawing]

Fig. 1 is a hydraulic circuit diagram of a hydraulic system for a poom swing winch, and Fig. 2 is a vertical sectional view of a special +3 leaf valve. Applicant for the patent: 1) Katsumi, Procedural Supplement to the Director General of the Japan Patent Office, July 211, 1983, Case Description 1982 Patent Application No. 15744'4 2, Name of Invention For Poom Swivel Winch Hydraulic system 3, relationship with the case of the person making the amendment Patent applicant - 1) Katsumi 4, agent 7, contents of amendment Attached specification and Figure 12! ls-li,
Hydraulic system for boom swinging winch from Nagisa's specification L Claims: '5l It - Rotating automatic IEK shaft mounted nine boom for swinging by pulling left and right wires. At K, the left and right V ears are hydraulically operated! -IKm! Stitched drum Kmll
L, a selection circuit that switches both oil FE-=h-10tAE drive circuits, is selectively connected to the hydraulic source and the tank via a valve, and one is connected to the hydraulic source and the other is connected to the tank;
Constantly one/Kll! ! ! Each selection circuit Kt#1FEq knee of each hydraulic drive circuit
A check valve is interposed to prevent the flow of O from the armpit to the tank, and an A path that does not extend to the armpit is installed in parallel with the armpit check valve. According to the increase in fluid pressure in the selected circuit/path of the hydraulic drive circuit, the fluid pressure in the pipe A is lowered (the special relief valve t to be controlled
- Hydraulic system for one-time pinching of I-boom tI. ! DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hydraulic system for a nine-boom swing winch, which is suitable for installation primarily on ships such as fishing boats. Conventionally, the machine part of this type of quinte seam is rotatably attached to the shaft, and is attached to the boom to pull the left and right wires. Since the left and right wires are usually pulled through pulleys, unless the seam 0@ section is located on the central axis between the left and right pulleys, the pulling length and unwinding length of the left and right wires will be minimum. For example, in cases where the boom mechanism is often mounted on one side of the ship for operational efficiency, such as on a fishing boat, each wire must be manually operated by # number of workers, or One operation is controlled by a separate knob, and nine hydraulic peaks are operated by two voice-driven O-drums.The workability is poor and the fishing load oscillates as the boat oscillates, making it difficult to turn. There was a drawback that the boom could not be stopped due to the fluctuation of the boom. The present invention aims to prevent such drawbacks, and has a winch boom whose root part is rotatably attached to a shaft, which can be rotated by pulling left and right wires. Wrap the wire around a drum fitted with a hydraulic motor,
A selection circuit in which the hydraulic drive circuits of both hydraulic motors are selectively connected to the hydraulic power source and the tank via a switching valve, one of which is connected to the hydraulic power source and the other to the tank, and a tank that is permanently connected to the tank. A check valve is interposed in each selection circuit of each hydraulic drive rm11 to block the flow from the hydraulic motor to the tank, and a check valve is provided in parallel with the check valve to connect the hydraulic motor to the tank. The pie 9 is set up, and the pie 9
The present invention is characterized in that a special relief valve is provided for controlling the fluid pressure of the Pinos in accordance with the increase in the fluid pressure of the selection circuit of the other hydraulic drive circuit. In Fig. 1, (1) shows a boom in which the machine part (2) is rotatably attached to the deck of a fishing boat, etc., and the Fi skeleton part (2) of the boom (1) is shown. As a fulcrum, multiple wires of suitable fibers (not shown) are used as a fulcrum to hold down the current.A load of fish, etc., is pulled up using the wires running along the armpit boom.
(3) (4) are wires that are attached to the wrinkle boom (1) and extend left and right, (53 (6J) are each wire (31 (4) 4D
Musu Nakaseki, with 11 pulleys, Isada Day A (1) Part 011 (
2) The left pulley (5) is placed on the central axis of both pulleys (5) and (8) to test it. (1) Seven pulleys (5) (6) The condition of the seam (wire 0 when running 130 m)
The traction length and the JI extension length ili# are not equal.
(7) (The sum is each wire (31 (4 meetings)
To put out the oil in the opposite direction, the hydraulic cylinder (9)-1: Drawer rotating on the hook, and the same volume of oil from the Ua2 expansion hydraulic power source (to) to the tank via the oil jE4-voice (9) all. In the hydraulic drive circuit that is equipped with
Consisting of a selector mm@a that is selectively connected to the link I, and a constant 4-hydraulic motor (9H1l/F/wheel), in the example of the m-fist, there is a ■Tread a1) u's one step I degree turn rA4t - 1 % in common, so it's a great composition.It was 5K. U- is oil ME Hatame (9) Trout and switching valve Trout 7 O
Large oil pressure order to intervene in the N0hen ma step Sanchin - Me (9) I11 outflow of fluid from the trout to the tank side - Check valve a I to prevent
Wrinkle reverse positive check valve - and foot row OA Ipass (2) (to) K setting is 7 valves, and leaf valve a is 7 valves, while O
Selection - Step on the check valve a# (IIK) Stops the current and flows through the A path (2) (To) I Ink returns 1 fluid t) E force to the hydraulic valve of the other selection circuit When the fluid pressure increases, 1
Hiroken (, the choice of the armpit is 0 because the body pressure decreases and 11
In order to control the pressure such that i safety height < 11%O, for example, as shown in the second figure (configuration 1), that is, each relief valve fin or seat (
To) is pressed by tX@ and both V-)- is #
The needle valve that invites the 11th work to pass, and the wrinkle request part (2)'
To maintain & normally move -) ■ or b Fluid pressure is introduced 1.
Pressure III (to) and II to the seat ■ and needle valve (2)
Pressure is introduced from the bottle A&#IK]It-) (2) against the 211th force 11 &, the needle valve @O spring 61, 1, and the pressure is applied to the 21st pressure force at IljlIII. 1 kuposhi (to) and the needle valve (2) is exposed a! Confucianism 0
The m1lIi is configured to have an IIS pressure head @7 for facing, and each relief valve fin alIOAj-t (Foundation) and 11
2-)- are connected to the forward and reverse hydraulic drive circuit UO*Road and the check valve AS-〇 forward direction Y/*Ir, respectively, and 4-T (to) is the check valve (C) no. ＊'Jo tank member 1 is forced to act on the force, so the pressure increases, so the seven-needle valve (2) is sowto spring 0. Retreat to a position that balances the elasticity and press the second medical power declaration g4/! EO third square * @ Kta mouth, but the opening area is Mpo) (Foundation) OE power is high 1 becomes very hot O'' It is possible to control the pressure of the tank XjOal1 to a low level due to the flow to e-3 pressure * (2) or h-edition SIE force statement (2), MU4-) @ O
When the BE force is *gtc low (the 8th, island pressure 4 power @ 4th opening area is narrowed to *S), select Ouji Seishin O Tanta x JIO fluid pressure is high (to control Happened. When the main source - O operation tS switching valve ■ is operated to the position (11), the O fluid is hydraulically driven from the ζO position tIIM calm source ■ to the 1111 @ 0 * direction. The selected turn of the circuit U should be driven through the check valve (2) to the hydraulic section (2), and the r (7) is connected to the left wheel (3) (3).
Since the winding p is on one side, the boom (1) K should be turned to the left.
As the boo A (1) turns 0, the right wire (4) is pulled out from the I knob (2) and the dot (8) and the O hydraulic peak -1 II are rotated, The drive circuit for this cylinder (UO different selection path/unchanged is by operation of the switching valve a-)
The oil pressure valve connected to the tank trout is opened by pressure on the side of the road. ,Then, the wheel pull length and Tsuiya (40) of Tsuiya (3) are not specified at all, and the hydraulic pressure is 4-1 @ 0.
There is no discrepancy with the hydraulic pressure Oa@ number, but the hydraulic pressure peak that operates as this pigeon coop (L@) is
Hydraulic pump (from the paddy discharge side or pump)
An excessive flow rate is supplied, and the wire (4J) can be caused to rotate according to the length of the wire (4J). (1
), the wire (3) loosens and the hydraulic motor is being driven. The selection circuit - 〇 The drive circuit into which positive pressure is introduced (L1es special relief valve or O needle valve (2) is pushed by the spring (goods) and the iris 3 pressure pressure (goods) is changed to the 3rd pressure wealth (2) In order to narrow the opening to the drive enclosure, the tank xpO pressure in the drive enclosure aso The swing prevents free rotation in the turning direction, increasing safety during cargo handling. By switching the switch valve to position (lin) K, the boom (
1) is rotated in the opposite direction, and the operation of this and 1 is substantially the same as in the case described above. According to this report, the tortoise winds the left and right wires that rotate the boom *)'' The winter hydraulic drive circuit of the eight hydraulic motors of the tortoise is selected as the hydraulic source or tank using a switching valve. It consists of a tank circuit that constantly goes around the tank on the selection circuit, and on the other hand, the hydraulic pressure peak of the O selection circuit - I or B is connected to the tank h#
Since the pressure of one body is controlled by the 411 special relief valve so that it decreases as the pressure of the other O selection circuit increases, the left and right wires O are stretched by the boom O rotation. It is possible to rotate the boom without any inconvenience even if a roof with a length of 7 p is generated, and when a force in the direction of rotation is applied to the boom, unnecessary rotation is prevented and safe), so that the operation is This can be done by just one operator controlling the switching valve, which improves work efficiency and has other benefits. 4 Simple l on side B1! - The 1st II is the main one! Figure 2 shows an example of a special relief valve used in the device according to the present invention. (1) - Boom (2) - Machine part (3) (4) -
Tsuiya (7) (8)-1' Ram (9)a・-
Oil 1E4-p 111 wheels-hydraulic drive circuit (2)-ta) // B4-j'l'/circuit (Ls■-check valve aη-special leaf valve--hydraulic source
-Eleven selection circuit 03@, -Lyris A patent applicant: 1) Katsu, Atsushi Ishiro, Kin Kitamura- and 2 others e〈j ・Shigeni

Claims (1)

[Claims] 1. When the boom is not installed at the center of the left and right pulleys, a hydraulic circuit allows the boom to be rotated using the first hydraulic operation handle while keeping the left and right wires at a constant tension. 2. Special hydraulic pressure I to keep the left and right wires at a constant tension even when the entire boom installation location is shaking horizontally.
J Q-fu valve.