JPS6348635Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wire rope winding or micro-feeding device for a capstan winch used for the main rope of a cable crane, a suspension rope for lifting loads, etc.

Conventionally, this type of wire rope winding device is
This is because the winding side of the capstan drum is kept under tension at all times by hand, and the capstan drum is rotated to wind the wire rope while preventing the wire rope wound around the capstan drum from loosening. This was not only extremely troublesome, but also extremely dangerous as there was a risk of getting caught. Moreover, when the wire rope has been wound too much and it is desired to adjust the unwinding, fine adjustment is complicated.

The present invention improves these conventional drawbacks, winds wire rope safely and efficiently with simple operations, and allows wire to be paid out in minute amounts as necessary to easily adjust for excessive winding. The purpose is to obtain a device that can

An example of the configuration of the present invention shown in the drawings will be described in detail. Reference numeral 1 designates a capstan drum which is rotatably pivotally connected to a machine base 2 by a shaft 3, and a cable receiving roller 5 is rotatably pivotally mounted by a shaft 4 at a distance on the winding side of the capstan drum. Receiving roller 5
is mounted so as to be movable in the four axial directions. Further, gears 6 and 7 are fixed to one side of the capstan drum 1 and the cable support roller 5, respectively.
A rotating shaft having a connecting gear 8 that meshes between the two gears 6 and 7, and a small gear 9 that meshes with the gear 6 of the capstan drum 1 on the feeding side of the capstan drum 1. Pivotally attach the shaft 10,
A handle 11 is detachably attached to the rotating shaft 10. Reference numeral 12 denotes a cable holding device, in which a mounting plate 13 formed in a dogleg shape is rotatably attached to the shaft 4 of the cable receiving roller 5, and one protruding piece 13 of the mounting plate 13 is attached to the shaft 4 of the cable receiving roller 5.
A small hole 14 is drilled in a, and a small hole 1 is drilled in the machine base 2.
A pin 16 is removably inserted between the two protruding pieces, and a cylindrical body 18 having an upper cover plate 17 is fixed to the other protruding piece. Reference numeral 19 denotes a pressing body, and a large-diameter sliding portion 22 is integrally formed at the lower end of an operating rod portion 21 having a screw 20 carved in its upper part.
The sliding portion 22 is slidably fitted thereinto, and a pin 24 protruding from the cylindrical body 18 is fitted into a vertical groove 23 cut out in the sliding portion 22 to prevent rotation of the pressing body 19.
On the other hand, the operating rod part 21 of the pressing body 19 is provided to protrude from the upper cover plate 17 of the cylindrical body 18, and the operating ring body 2 has an adjustment handle 25 provided on the screw 20 of the protruding operating rod part 21.
6 and attach the thrust bearing 27 to the upper surface of the upper cover plate 17. Further, a spring 28 is elastically mounted between the inner and lower surfaces of the upper cover plate 17 and the upper end surface of the sliding portion 22 of the pressing body 19. Reference numeral 29 denotes cable pressing rollers, which are rotatably connected to both sides of the bearing plate 31 by shafts 30, and the central part of the bearing plate 31 is connected to the shaft 32.
It is pivotably attached to the lower end of the pressing body 19 by the. A wire breakage prevention fitting 33 is rotatably attached to the shaft 30, and a stopper 34 is attached to one end of the wire breakage prevention fitting 33. This stopper 34 has a ball 36 inserted into a cylinder 35 and a spring 37 behind it.
An adjustment screw 38 for adjusting the elastic pressure of 7 is screwed into the cylinder body 36. On the other hand, locking holes 39 into which the balls 36 are fitted are formed in the bearing plate 31 at two locations, one on the side and one on the top, at an angle of 90 degrees.

The ratchet gear 40 is fixed to one side of the capstan drum 1, and is engaged and disengaged by a ratchet pawl (not shown) to prevent rotation of the capstan drum 1 in the feeding direction. A indicates a wire rope.

With this structure, when winding the wire rope A, after winding it around the capstan drum 1, it is passed over the rope receiving roller 5, and then when the adjustment handle 25 is rotated, the operation ring body 26
and the screw 20 of the operating rod part 21, the pressing body 19 is
moves downward, and the rope holding rollers 29, 29, which are pivotally connected to the bearing plate 31 attached to the lower end thereof, come into contact with the wire rope A on the rope receiving roller 5. When the adjustment handle 25 is further rotated, the adjustment handle 25 moves upward and the rope presser roller 29 presses the wire rope A due to the spring 28.
Then, rotate the wire breakage prevention fitting 33, fit the ball 36 of the stopper 34 into the upper locking hole 39 from the side locking hole 39, and connect one end of the wire breakage prevention fitting 33 to the cable receiving roller. 5. In this state, handle 1
When gear 1 is rotated, gear 6 meshes with small gear 9.
rotates, the capstan drum 1 rotates in the winding direction, and the gear 6 rotates the gear 7 via the connecting gear 8, and the rope support roller 5 integrated therewith also synchronizes with the capstan drum 1. and rotate at the same speed. As described above, the rope holding rollers 29 and 29 press the wire rope A by the elastic pressure of the spring 28, so that the wire rope A is connected to the capstan drum 1 and the rope holding roller 5. It is possible to reliably wind the material while keeping the gap in tension. When feeding out, the ratchet pawl is removed, the ratchet gear 40 is freed, and the handle 11 is rotated in the opposite direction. Furthermore, when winding the wire rope too much or when it is desired to lower the load by a small distance, the pin 16 is pulled out from the small holes 14 and 15 with the ratchet engaged, the mounting plate 13 is freed, and the rope holding device 12 is moved to the first position. As shown by the chain line in Figure 4, the wire rope A is rotated in a fan shape around the shaft 4 as a fulcrum, and the wire rope A stretched over the cable receiving roller 5 is pulled out (see the chain line in the same figure), and then the cable presser device 12 is moved to the right again. The rope presser rollers 29, 29 idle on the drawn-out wire rope A and only the rope presser device 12 returns to its original position, so the pins 16 are inserted into the small holes 14, 15 to fix the mounting plate 13. After that, the ratchet gear 40
If is free, the wire rope A wound around the capstan drum 1 is loosened and is let out by the load of the load, and the wire rope A between the capstan drum 1 and the cable support roller 5 is again Become tense. Therefore, the wire rope A that is paid out has a very small length. Moreover, when this amount of feeding is small, the above operation can be repeated again.

As described above, the present invention eliminates the need to manually maintain the wire rope in a tensioned state at all times when winding the wire rope, so operations during work are hassle-free and safe, and the installation operation is simple and quick. can be done. Furthermore, while the wire rope is being wound up, the wire rope receiving roller is pressed by the rope holding roller that is constantly pressed by a spring and rotates at the same speed as the capstan drum, ensuring that the wire rope is not loosened and is wound securely. be able to. In addition, when the wire rope is wound too much, or when you want to lower the hoisting position of the load by a small amount, you can pull it out reliably with a simple operation, and you can minutely adjust the amount of wire rope to be pulled out. It has various excellent effects.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the present invention, Fig. 2 is a front view, Fig. 3 is a vertical side view of the cable restraining device, Fig. 4 is an explanatory diagram at the time of minute withdrawal, and Fig. 5 is a metal fitting to prevent wire from coming off. A cross-sectional view of the portion is shown. 1... Cap stand drum, 5... Cable support roller, 6, 7... Gear, 8... Connection gear, 9
...Small gear, 12...Cable holding device, 13...Mounting plate, 14, 15...Small hole, 16...Pin, 19
... Pressing body, 29 ... Cable presser roller.

Claims (1)

[Scope of utility model registration request] A rope support roller is arranged on the take-up side of the capstan drum, and a cable presser roller is provided oppositely on the cable support roller, and the rope presser roller is installed so as to clamp the wire rope wrapped around the rope support roller. The rope retaining roller is pivoted to the machine base so as to be able to rotate in a fan-shaped direction in the direction of the capstan drum while pinching the wire rope wound around the rope receiving roller while biasing the wire rope in the direction of the roller; Furthermore, the capstan winch is characterized in that the capstan drum and the rope receiving roller are connected by a rotation interlocking mechanism so that the wire rope between the capstan drum and the rope receiving roller can be wound in a tensioned state. Winding and feeding device.