JPS5948392A - Winch drive - 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 Misfire jllJ relates to winches and drive devices.

The crane is equipped with a diesel engine as the prime mover.In the case of so-called mechanical cranes, this diesel engine is used directly as the power source for the winch, while in the case of hydraulic cranes, the central office is powered by a tasel engine via a pump. This hydraulic morph is used as a power source for the winch. In addition, an electric motor is the power source for an electric crane. As described above, conventionally, as a power source for a winch, one of a diesel engine, an electric motor, and a hydraulic motor (hydraulic motor, water pressure motor) has been used. However, although diesel engines and electric motors (hereinafter collectively referred to as prime movers) have advantages such as high horsepower and sticky hoisting blades, they have difficulty controlling speed in high and low speed ranges.
It has the disadvantage of being 1f:. On the other hand, although hydraulic motors have the unique advantage of being easy to control speed in high and low speed ranges, they suffer from high power transmission loss and are inferior in terms of operating efficiency, and also have weak starting force and lack of resilience. It has a 4'D location. Therefore, in the conventional winch where only one of the driving force and the hydraulic motor is used as the entire power source, 1
However, when using a disturbance device, there are advantages and disadvantages in terms of performance, and the results were not always satisfactory.

Therefore, the present invention aims to provide a winch drive device that can improve winch performance by taking advantage of the advantages of both a prime mover (a tea cell engine or an electric motor) and a hydraulic motor.

The present invention is characterized by a prime mover as a first power source, a hydraulic motor as a second power source driven by the prime mover via a pump, and rotation of these prime mover and hydraulic motor. both first and second power transmission mechanisms that transmit power to the hoisting shaft of the winch drum; a hoisting mechanism that rotates the drum in the hoisting direction; and a hoisting mechanism that also rotates the drum in the hoisting direction; 1. A first operating valve for power switching that selectively operates both of the second power transmission mechanisms, and a second operating valve for switching between hoisting and hoisting that selectively operates both the hoisting and hoisting mechanisms. A winch comprising: a drive device;

Hereinafter, the flow side of the present invention will be explained with reference to the drawings.

A is the winch, B is the prime mover as the first power source, i.e. a tea cell engine or electric motor, and C is this prime mover I.
The oil 1 [motor (hydraulic motor is also a river) as a second power source driven by JI B via pump D.

To give an overview of winch A, 1 is the volume ``Nidram'', 2
1 is a hoisting shaft, 6 is a planetary gear t'il+, 4 is a drano-type clutch mechanism, 5 is a negative brake that always fixes the drum 1, and 6 is a planetary brake. Reference numeral 7 denotes a clutch ring of clutch jlU Irq 4, and by the operation of this ring 7, crano titrano, 8 rotates together with the hoisting shaft 1, and the rotation of this drano, 8 is caused through the ilj'L star gear lateral 6. This is transmitted to the hoisting drum 1, thereby causing the tram 1 to rotate (hoisting rotation) in the same direction as the hoisting axis λ. That is, the clutch Ii+y 4 and the planetary gear mechanism 6 cause the winding +9. It makes up the structure.

9 is the brake 7 link of the planetary brake O, and the nuclear 7
By the operation of the linter 9, the kushinochitrano 8 is fixed. At this time, t-L planetary tooth-middle machine:':”i
The rotation transmitted from No. 3 to the hoisting drum 1 is the opposite of that of [) 1 ■ No. 2 o'clock (so-called power hoisting rotation). That is, by the ply brake 6 and the planetary gear mechanism 6)
constitutes the hoisting mechanism. 1o is a brake cylinder of the negative dip brake 5, and the braking force on the hoisting drum 1 is released by the operation of the cylinder 10, and in this state, as described above, the hoisting mechanism or the hoisting (and the hoisting by several operations) The drum 1 is rotated up or down by power.

1. In the drive system, 11 is the output 1 of prime mover B
111.12 is the output shaft of the hydraulic motor C (hereinafter referred to as the first output and the second output);
The clutch Schilling 16, which is always in operation, is connected to the output +1'l1111.
4, and a positive clutch mechanism 1 having a clutch sill 15 on the second output shaft 12 which is always in an inactive state.
By providing 6, the first (driving $51f1.lj
) and a second (hydraulic motor side) power transmission mechanism E2. The first output shaft 11 is interlocked with the rotation shaft of the pump D through gears 17 and 18, so that the pump D is constantly rotated by the prime mover B. On the other hand, the above Lee Ghatib,
Positive double clutch mechanism 14.16 output 11111
119 is interlocked and connected to the winding gear 1112 via gears 20, 21, intermediate gear 22, and chain transmission mechanism 26. 24 is the oil discharged from the pop]) Adjust 11.
It is a regulator that performs ψ−.

To explain the control system, 25 is the first. 2nd power transmission rock 1#
'+'' The first operation valve for power switching that selectively enables T and EI, and consists of a lever 26 and one displacement variable L1-valve 27. 28 is the volume 1- Dora A
This is a second operation valve for switching between hoisting and hoisting to change the direction of rotation of the loaf 1, and is composed of a lever 29 and a pair of variable loaf valves 30 and 31. These first. 2nd Ryoho 1 Sakusho 25.28
The first-order A law is j'X kA for the hydraulic pressure 62.

Of the two secondary A-law pipes 6 and 34 of the second operation valve 28, one pipe 66 is connected to the clutch mechanism 4 in the winch A.
When connected to the clutch sill 7 of the negative brake 5, the brake 7 of the negative brake 5 is
10, and connect the other force's 4tjj path 64 to the brake 7/da 9 of the play chestnut brake O,
It is connected to the brake cylinder 1° of the negative brake 5 via the /yatle valve 65. The secondary transmission line 66 of the first operation valve 25 branches into two pipe lines 37 and 38, and one of the pipe lines 67 is connected to both the first and second power transmission mechanisms EllE2.
It is connected to the clutch/linders 13, 15 of the clutch mechanism 14, 16 at. Therefore, when pressure oil is supplied from the pipe line 66, the negative clutch cylinder 16 is simultaneously switched to the non-operating state and the positive clutch cylinder 15 is switched to the operating state, and the first power transmission mechanism E is turned off. &
The λ2 power transmission mechanism E2 is turned off. That is, the winch and drive power source are switched from the prime mover B to the hydraulic motor C. The other branch pipe 68 of the pipe 3 is connected to the pump regulator 24.

Next, the effect will be explained.

(1) The state in which the prime mover is driven, that is, the lever 26 of the first operation valve 25 is a
When in this position, no pressure oil is supplied to the secondary line 66 of the valve 25. Therefore, the first power transmission mechanism E is in the ON state, and the winch A is hoisted II! 1lI2 is directly driven by prime mover B. In this state, if the second operating valve 28 is operated in the direction of the arrow A, pressure oil from the hydraulic source 62 passes through the second operating valve 28 and the pipe 66 to the brake cylinder of the active brake 5 in the winch A. 10 and the clutch/cylinder 7. As a result, the negative brake 5 is released and, at the same time, the clutch iso t is released.
t#4 is activated and the hoisting drum 1 starts winding l-11i111.
It rotates integrally with 2, that is, performs hoisting rotation. On the other hand, the second
When the lever 29 of the operation valve 28 is operated in the direction of the arrow, the pressure oil passes from the operation valve 28 through the pipe 34 and is connected to the brake cylinder 10 and the brake/planetary brake A.
It is supplied to the cylinder 9. As a result, as described above, the negative brake 5 is released and at the same time the planetary brake 6 is activated, so the clutch drum 8 is fixed, and the hoisting drum 1 is prevented from hoisting and rotating by the action of the planetary gear mechanism B. Let's do it.

(11) When the lever 26 of the hydraulic motor-driven first operating valve 25 is set to the b position, the pressure oil from the hydraulic source 62 passes through the valve 25 to the secondary (
l]ll enters the pipe 66 and branches from there into upper pipes 37 and 38. The pressure oil that has entered the pipe line 67 is transferred to the clutch cylinder 16 of the first Kushinochi mechanism 14 and the second clutch mechanism 16.
and the clutch/cylinder 15 at the same time. As a result, as described above, the first power transmission mechanism E is turned off and the second power transmission mechanism D2 is turned on, and the rotation of the hydraulic motor C is transmitted to the hoist 11i1112. That is, the power source is switched from the prime mover B to the hydraulic motor CK. In addition, although the pressure oil that has entered the pipe line 68 from the pipe line 66 can be completely supplied to the regulator 24, the pressure oil is not enough to operate the regulator 24 at the first operating valve 25. Since the pressure is reduced to , the regulator 24 does not adjust the amount of oil discharged from the pop D.

At this stage, only the power source is changed nine times from the prime mover B to the hydraulic motor C, and the rotational speed of the hydraulic motor C is not controlled.

At the same time, when the lever 26 is operated from the b position to the C position 4Fill, the flow is transferred from the secondary pipe line 66 to the branch pipe line 38.
Since pressurized oil with sufficient pressure to operate the regulation 24 is supplied, the discharge oil of pump D: l) is adjusted between position b and position C. Due to this, the rotational speed of the hydraulic motor C is controlled, and the hoisting and hoisting speeds are controlled.

In this way, the second operation valve 28 is used to switch the power source from the prime mover B to the oil II-motor C, or vice versa, by the tram, and also to This is for speed control. Accordingly, when this winch and drive device is used, for example, for normal work, high output is required, and the motor B, which is sticky on two sides, is used as the power source, For work 11S that requires speed jy control in high and low speed ranges, by switching the power source to the hydraulic motor C with excellent speed controllability, it is possible to obtain an immediate drive state that is suitable for the work content. It is something. What's more, switching the power source and controlling the speed in the case of a single hydraulic motor drive can be controlled by operating only one lever angle? 1'I. In addition, in this embodiment, the first power transmission mechanism E1, which is normally used as a main power source, is used as a negative type (normal [), Te operation type), and as a sub power source. Since the second power transmission structure E2 of the hydraulic motor C411+1 is of a positive type (always inactive), it is easy to use.

It should be noted that the specific configuration of the first and second power transmission mechanisms E, E2 may be arbitrarily selected in addition to the drum type clutch mechanism shown in the above embodiment. Furthermore, the first operating valve 25 for switching the power source and the second operating valve 28 for hoisting and lowering switching can also be replaced with various types in carrying out the present invention.

As described above, according to the present invention, two types of power sources are provided: a prime mover (e.g., an easel engine or an electric motor) and a hydraulic motor driven by the prime mover via a lever knob. Since the power sources can be switched at will, it is possible to use different direct power sources depending on the work and obtain drive conditions that take advantage of each length.For this reason, winches, hoisting machines equipped with winches, It is possible to improve the work performance of the machine and expand the work range.Furthermore, the switching operation of the power source can be easily performed by only operating the valve.

[Brief explanation of the drawing]

The figure shows a hydraulic circuit configuration 1 illustrating an embodiment of the present invention. A winch, B drive] 1, C hydraulic motor, D hydraulic pump, 1 winding ram, 2... hoisting shaft, 4 clutch mechanism forming the hoisting mechanism, 6 ply clutch forming the lowering mechanism. Brake mechanism, 6 hoisting mechanism, unwinding machine (-
14-'tf'j M star gear mechanism, F:. 1st power transmission mechanism, E2 2nd! 1TIJ power transmission mechanism, 25 first operating valve for power source switching, 28. winding, second operating valve for lowering switching. Patent applicant Kobe Steel, Ltd.

Claims (1)

[Claims] 1. A prime mover as a power source for gyl, a hydraulic morph as a second power source driven by this prime mover via a pump, and a hydraulic morph that drives the rotation of these prime movers and the hydraulic motor to hoist the winch drum. Both first and second power transmission mechanisms transmitting power to the shaft, a hoisting mechanism that rotates the tram in the hoisting direction, a hoisting mechanism that also rotates the tram in the hoisting direction, and both the first and second power transmission mechanisms. A first operating valve for power switching that selectively operates the mechanism, and a second operating valve for hoisting and hoisting switching that selectively operates the hoisting and hoisting cylinder mechanisms. A winch drive device that does a lot of things.