JPS5836896A - Capture device for tail end of 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] 2- This invention relates to a capstan-type drum reinforcing device for a winch, in which the capstan portion of the wire rope wound around the capstan is not obtained, but is supported mechanically at all times. It maintains the bulge tension.

Boshi is a rope without fixing the end of the rope to a capstan type drum.
A rope is wrapped around a drum (capstan) several times, and the tail is pulled out by hand to loosen the rope and extend its life.

Figure 1 shows a situation in which a conventional hand-wound winch is used to pull up a load. Only the winch part is shown in plan, but the hand-wound handle l is turned to advance the wire lobe box in the direction of the arrow and pull up the load W. Connect the wire robe R to the capstan (
By wrapping the wire rope around the drum)/l several times, just by applying a slight tension to the prong molecule, the wire rope on the capstan l will be tightly wound, creating a large frictional force, and rotating with the capstan l. The load W can be lifted. Pulling the bulge molecule to maintain appropriate tension by hand has been done manually since ancient times, and is a historical method that is still widely used to this day.

However, this method involves danger when unloading the load W.

That is, when the claw 11a is hooked on the gear wheel to prevent the capstan l/1 from reversing, and the capstan l/1 is gently loosened, the capstan//up-rip R loosens and slides on the surface of the capstan l/1. The load W descends. When the load W is lowered, the rope R above the capstan becomes looser, and the rope R tightens the capstan and stops. The same phenomenon repeats when the cylindrical molecule is further loosened. In return, the rainbow cargo W descends, and this fall is commonly known as ``zuri komi''.

If you do this continuously (as you gradually loosen the gripper part), the load W will descend continuously, but if you loosen the gripper one more time, the wire rope R will move from the capstan to the lower part.
There was no time to tighten L, but the load of the load W was applied directly to the boshi side, and nine people holding the boshi part suddenly fell.As a result of such frequent accidents, the Ministry of Labor and Welfare has banned holding the boshi.
We are giving notice. However, in reality, there is no hand-wound winch that does not require a holder, so we have no choice but to use the conventional swivel method, and accidents still occur and are still causing confusion.

The present inventor was requested to develop a simple and inexpensive bolt increasing device that can be easily installed on simple machines such as hand-wound winches. Therefore, lifting and lowering dangerous heavy objects using capstan and bolt operations is itself a kind of convenience. It is possible to obtain safety by winding up the bottom part separately, controlling the tension using hydraulics, electricity, etc., and using a safety collar inch for hanging, but there are many advantages to using the capstan method as a convenient method. .

The human hand can sense and adjust the strength of the tension on the wire rope, and can also advance and return the wire rope by alternating the gripping locations of both hands. However, it was extremely difficult to mechanize this process inexpensively and safely.

As a result of our research, we found that, no matter how expedient it may be, we can safely create a bolt-increasing device by using the conventional method of suspending heavy objects using the friction of simply wrapping a wire rope around a stopped capstan. I have come to the conclusion that it is a mistake to think so. This is because the coefficient of friction between the wire and the capstan is not constant.

The coefficient of friction is constant, and it can perform complex and dangerous actions such as loosening the sword, loosening the bolt and cleaning the wire rope on the surface of the wire rope, and restoring the tension of the bolt to a constant value to stop the rope. That's a lot to ask of the Bozi-increasing device.

Therefore, the bolt removal device of the present invention can be used in common with a winch with a brake return mechanism. The brake return mechanism means that the load is 199
When the wire rope is pulled out from the inch, the capstan (drum) is fully braked to rotate it silently. Even a simple hand-wound winch is equipped with a brake return mechanism, as shown in FIG. 2, for example. To explain briefly, when you turn the X-handle in the hoisting direction, the gear 3
', shaft//α rotates, screw disk/3 rotates, attracts capstan l/ with female thread, brake plate/guni plate engages gear/! and tighten it onto the screw disk 13〃1
The capstan // rotates together with the screw disk 13. In this case, the gear /j rotates in the direction of the dotted arrow in Figure 3.
It is not constrained by the claw/l.

When the handle / is turned in the rewinding direction, the direction of rotation of the screw dinuke 13 is reversed, so the capstan // is released and the brake plate /4' does not perform any braking action. Therefore, the load is rotated in the unwinding direction by means of a wire rope (circuit). With this rotation of the capstan /l, its female threaded portion draws the capstan // to the screw disk /3, so that the brake plate /g and gear /J' are tightened between them, as in the case of winding up.

During this rewinding, the gear /j is turned in the direction of the solid line arrow in Figure 6, but the pawl /l works and prevents it from turning.

Therefore, the capstan l/ that engages with this is braked,
It will not move unless you stop the rewinding rotation and then turn the handle in the -7- direction.

Now, FIG. 4 shows an embodiment in which the invention is applied to a winch with a brake return mechanism. The main parts are the wire rogue on the bottom side of the capstan l/ which is the drum of the winch, the winding form 6 on which the end rope r is wound, and this winding form 2
In this case, the torque IJ S24g and the check mechanism that limits the rotation of the bolt shaft 7 to the winding direction of the bolt lobe τ. , in this example, the gear wheel Hiroshi and the pawl ti-a, and the bolt shaft 7 is interlocked with the capstan // when winding the bolt low-fu r.
An interlocking rotation mechanism that rotates the inlet shaft 7 at a speed that makes the circumferential speed of the winding form t equal to the wire lobe delivery speed of the capstan //, in this example, the winch gear 3' in FIG. 2 and the inlet side gear 3 in FIG. and a gear wheel j and pawl jα that transmit the rotation of the gear 3 to the pin shaft 7 only during winding.

Heat theory, in order to satisfy the above-mentioned conditions for interlocking rotation, for example, if the winding diameter of the capstan // is equal to the winding diameter of the winding form 2,
Number of teeth of gear 3' and gear 3 JP-A-58-36896 (
3) Design the interlocking member appropriately so that . The point is that when winding up (towing), instead of turning the winding form l to match the speed of the boshi rogue r coming from the capstan, the winding form l should be turned much faster to create tail tension. For this reason, the winding weight Otsu is not directly connected to the boshishaft 7, which is its drive shaft,
The torque IJ transmitter male of the frictional engagement mechanism is used as an intermediary.

The torque limiter is a well-known commercially available product that clamps the friction material GA, which rotates together with the shaft 7, by pressing both sides of the rolled weight with an appropriate force. The friction material gα is applied to the winding form 2 by adjustable friction force.
Since rotational torque is transmitted to the rope, it is possible to set and adjust the tension generated in the rope r. Since the winding form 6 around which the Shitte rope r is wound is unable to rotate freely, slip occurs at the friction part between the torque limiter g and the winding stop T, the winding weight B receives a constant torque, and the Shitte loaf r is It maintains a constant tension.

This tail tension is not only created by the rotational driving force of the torque limiter when the winch is hoisted up, but also created by the braking force of the torque limiter when lowering the winch, and its strength is the same. This has the advantage of being a good tension. The winch has the advantage of driving and braking the υ bundle using a frictional engagement mechanism, and the safety of preventing the load from dropping is ensured by the winch itself with a brake return mechanism. This is a simple bolt tension control method.

Although the torque limiter ♂ is easy to use as a friction engagement mechanism in that it can adjust the transmitted torque, any known friction transmission mechanism between a shaft and a wheel can be employed.

The non-return mechanism for the pin shaft 7 is also limited to the pawl wheel and pawl shown in the figure. The cam clutch illustrated in FIG. 5 is a non-return mechanism similar to a roller bearing, and fixes the outer ring 17, and the inner ring /,! ′
is keyed to the pin shaft 7 (~, the numerous spring-loaded cams inserted between them allow the inner ring/r to rotate in one direction and control rotation in the opposite direction. This has the effect of making the number of teeth on the gear infinite.

Now, instead of holding the rope r by hand, we wrap it around the winding pattern t.
This is an important part of the screw removal device, and this embodiment uses a groove wheel having a 10-V-shaped clamping groove ta on the outer periphery for gripping the wire rope. By using this grooved wheel, a gripping force corresponding to the gripping force of a human hand was generated by simply wrapping the Shitte Robe r around a little less than two quarters of its outer circumference. In this case, it is necessary to lightly press the mold and spring 10K↓ syrup into the V-groove. FIG. 6 shows the relationship between the V-shaped clamping groove tα of the groove wheel and the R1 push wheel. Also, the rope r inserted into the groove ta is smoothly lifted from the groove ρ).
Nuclepa 7.2 is added to separate them.

The winding form 6 may be a wire rope winding frame instead of a groove wheel. 7D) In that case, it is necessary to fix the rear end of the wire lobe to the gold winding frame, or wrap it around the winding frame many times to prevent slipping, and in this case, the wire length is limited. Therefore, it is inferior to a ditch wheel.

FIG. 7.8 is a design drawing for producing a product by combining the hand-wound winch of FIG. 2 with the embodiment of the invention shown in FIG. 4. This is a simple and lightweight hoisting and unwinding device that can be carried deep into the mountains, where cars cannot pass, by separating the winch side and the hoist υ device and carrying it on the back. The numbers in Figure 2.4 are used accordingly, and the shapes of the parts are the same.

When in use, conventionally, after winding the υ wire rope onto the capstan //, push down the handle α, raise the stop and apply the winding weight t. When the handle / is turned in the winding direction, gear 3.3'
rotate at the same time. The gear 3' rotates the capstan //ft via the capstan shaft //α, the screw disk /3, the pull plate 1, and the gear wheel /j, and attempts to wind up the wire loaf. In order to create the necessary force and tension for the winding υ, the simultaneous drive gear 3 (not keyed to the shaft 7), which has a diameter of 1°, has a claw attached to its side. a (See Figure 4, Section 7.
(Figure 8 shows a cam clutch used), and turn the pin shaft 7 and torque limiter g via the rainbow gear stopper j. The torque limiter tries to turn the hoisting weight 2 faster than the speed of the capstan//7D) and the hoist lobe r, so it creates an oval tension on the loaf, and a slight tension on the two lips of the frictional engagement part. held in
,ru. To generate this tension, the lobe R is wound several times.
A large load can be hoisted by rotating the capstan // as much as possible. B. "'"1"058-36
896 (4) Next, when the handle is turned in the return direction, gear 3°3' rotates in the opposite direction. The gear 3' rotates in a direction to move the screw disc/3 away from the capstan/hook.

Therefore, when the force holding the plate/l is loosened, the load turns the rainbow capstan// and the load is lowered a little. 7
The rotation of D1 Shikyanonutan/l is screw Dinuk/3
In order to pull the brake plate/4', turn the gear wheel in the return direction/! The capstan // is braked by squeezing the two.

The rotation of the screw disk/3 causes the capstan/
It takes a lot of force to turn the handlebar / so that it rotates faster than /, so the capstan automatically rotates, brakes, and unloads the load repeatedly.

At this time, the tension that tightens the wire rope R to the circumferential surface of the moya 1 fu 22 is maintained as follows. That is, even if the rainbow gear 3 is rotated in the unwinding direction by the handle l, the pawl jα (FIG. 4) on the side surface of the gear 3 merely rotates around the gear j. Fuko [111117 is gearwheel and claw≠α
In the direction of return, it is best to turn 73.

Therefore, the torque limiter g remains stationary and acts as a brake for the hoisting weight 6 that rotates together with the rogue r. The braking action produces a tension force, and the slip of the frictional engagement part keeps the tension constant.

The conceptual diagram of the embodiment shown in Fig. 7.8 shows the ease of use, such as disassembling the whole, folding it up for easy transportation, and adding 1 piece or 20 pieces, but the detailed explanation will be omitted.

Finally, the relationship between load and bulge tension (tensile force) is shown as a reference value. The load is W, the tension is f1, the friction coefficient between the wire rope and the capstan is μ(0,14), the number of turns of the wire rope on the capstan is n, and W-fxe2'' is W=1500Kr, and if the number of turns is n=5, then f= 113
If Kp and n=6, then f=7.6Kj1. Therefore, if you wrap the wire loaf around the capstan six times or more, the bolt tension will be 10.
becomes 9 or less. The force required to turn the handle to create this tension is a fraction of that force.

-/Hiroshi- The above has been explained using one embodiment, but the blowing li of this invention
T! The i-aspect can be varied and applied in a variety of ways according to the known techniques of the presenter without changing its gist. The target winches are not limited to hand-wound winches either.

This invention is a mechanization of the dangerous ``slip-in'' butt-hand operation.
As a result of analyzing and researching the butt-handed operation of A.814, we found that ``
The combination of a winch with a brake return machine (171) and a hole removal device is the simplest and safest system, and it has been realized that it can be mechanized without hesitation. The device includes an integrated frictional engagement part (which drives the rose winding load), "J fc, ff!! I l
Furthermore, we have provided an extremely simple mechanized device that maintains a constant bolt tension.

In particular, when this invention is used in combination with a hand-wound winch, it is effective in deep mountains where power line work is being done, or in fc construction sites where power equipment has been increased.

In other words, conventionally, there were two people holding the wheel, one person operating the steering wheel, and one person operating the steering wheel.
What used to require a total of three people now requires less than three people. 7
1' is also dangerous and requires less skill, freeing up the operator's operating power, allowing a single person to lift and lower heavy objects freely by simply operating the hand-wound handle, and freeing one's hands. Even if you let go, there is a strong possibility that it will fall.

In other words, this invention mechanizes the capstan wind removal work, which has caused many casualties over the years, without sacrificing its simplicity, and has great technological and industrial safety effects.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of how to use a conventional hand-wound winch, Figure 2 is an explanatory diagram of a ready-made screw brake type hand-wound winch, and Figure 5 is a diagram of how to use a conventional hand-wound winch.
Fig. 4 is a detailed illustration of the present invention; Fig. 5 is an explanatory drawing of an example of the shaft check mechanism; Fig. 6 is the V-shape of the winding weight shown in Fig. 4. The clamping groove illustration, FIG. 7.8, is a plan and elevation view of the embodiment of FIG. 4 in combination with a hand-wound winch. λ... Pinion of the interlocking rotation mechanism between the winch and the bolt take-off device, G... Gear of the bolt shaft path 111 mechanism, G α...
・Same claw, t...rolling weight (groove wheel), 7...boss shaft,
♂・・・Frictional engagement mechanism torque limiter. Aimen Hit58-36896 (5)

Claims (1)

[Claims] (1) The hoisting weight for winding the rope on the bottom side of the capstan of a winch with a brake return mechanism, the hoisting shaft that supports this hoisting weight in a fixed position, the above hoisting weight, the friction engagement mechanism of the hoisting shaft, and the above hoisting shaft. A check mechanism that limits the rotation to the winding direction of the winding rope, and when winding the winding rope, the winding shaft is interlocked with the cab 7, and the winding circumferential speed is adjusted to match the capstan's wire rope delivery speed. What is claimed is: 1. A winch receptacle device comprising an interlocking rotation mechanism that rotates a recess shaft at a speed of (2. In the device according to claim (1), the hoist is a groove wheel having a V-shaped clamping groove on the outer periphery for gripping the wire rope.