JP3339678B2 - Inverter car cage hoisting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cage hoisting device for a wheeled car, and more particularly, to a four-wire wire rope which is arranged and wound in multiple layers on a single drum.
The present invention relates to a cage hoisting device for an idler wheel capable of reducing the size and load of the idler wheel to reduce wear of the guide screw, dispersing the pulling force on the moving pulley to both sides, and reducing the load applied to the guide screw. .

[0002]

2. Description of the Related Art As a number of high-rise buildings are constructed, gondola equipment is required for repairing outer walls of buildings, cleaning glass windows, repairing works, transporting moving luggage, and the like.

In general, the vehicle equipped with an idler is installed on a rooftop, and the arm is protruded to the outside with the idler, and a pulley installed at the end of the arm and a wire drum of the body of the inverter are mounted. By connecting the wire rope between them, connecting the cage on which the worker rides to the end of the wire rope and driving the multi-stage arm to extend and retract, the distance between the outer surface of the building and the cage is separated at a suitable interval for work Work is performed by moving the cage up and down by rotating the drum.

[0004] In such an idle car, a drum around which a wire rope determined according to the height of the building is wound is mounted inside the body of the idle car. For this reason, in high-rise buildings, the size of the drum increases,
ompact) There were difficulties in making a car that did it.

[0005] In general, cages are used to maintain balance.
The worker who was connected to the body of the trolley using a wire or a four-wire wire rope and connected to each of the four corners of the cage using a four-wire wire rope was used. In maintaining the equilibrium, the stability is relatively superior to the method using a two-wire wire rope.

[0006] In the conventional cage car hoisting apparatus using such a four-wire wire rope, as shown in FIGS. 4 and 5, two first and second drums 4, 5 are installed vertically. And two wire ropes (w1, w2) (w3, w4)
The winding is aligned.

For this reason, conventionally, a four-wire wire rope from a cage is connected to a path changing pulley 7 disposed on the lower side of the body of an trolley via a multi-stage arm pulley, and the wire passing through the path changing pulley 7 The ropes w1 to w4 are wound around first and second drums 4 and 5, respectively, as shown in FIG. 6 via a moving pulley 6 which moves parallel to the drums 4 and 5 along a guide screw 9.

The rotating power generated by the driving motor 1 is applied to the drums 4 and 5 via the speed reducer 2 and the gears 3a and 3b of the drums 4 and 5 are gear-coupled through the shaft 2a of the speed reducer 2 to apply a rotating force. The guide screw 9 is rotated by a driving chain 11 connected between the chain sprocket 10a of the drum 5 and the chain sprocket 10b of the guide screw 9, and is screwed around the guide screw 9 to operate. The nut 12 on which the pulley 6 is mounted moves left and right.

In this case, the operating head supporting the nut 12 and the operating pulley 6 has a structure in which rollers are connected to the channels on both sides to reduce the moving frictional force, and the drums 4 and 5 have a structure.
The shafts at both ends are rotatably supported by bearings 5.

As shown in FIG. 6, such a conventional car cage hoisting apparatus for a wheeled vehicle has a pair of wire ropes (w1, w2) and (w3, w4) respectively passing through a first and a second pulley 6 through an operation pulley 6. In this case, in order to align and wind the wire ropes w1 to w4 on the drums 4, 5, the pitch of the chain sprocket 10b and the screw of the guide screw 9 should be the same as the pitch of the drum 5. Set. At this time, since the operation pulley 6 and the route change pulley 7 have the four wire ropes w1 to w4 moved by the guide screw 9 in the same direction, the length of each wire rope (w1, w2) (w3, w4) is no change.

[0011]

As described above, the conventional cage hoisting apparatus requires one drum for each two-wire wire rope, and in the case of a four-wire wire rope, the overall size of the insulated car device is large. As a result, the load transmitted to the guide screw is increased, and the guide screw is greatly worn. Such wear of the guide screw hinders the movement of the nut, that is, the working pulley, and the wire rope is eccentrically wound around only one of the drums, thereby causing a safety accident.

Further, since the moving pulley for guiding the wire rope to the drum receives a pulling force in one direction continuously,
There is a problem that a portion screwed with the guide screw is unevenly worn.

[0013] An object of the present invention is to arrange and wind a four-wire wire rope on a drum in multiple layers.
A cage hoisting device for an idler wheel that can reduce the size and load of the idler wheel to reduce wear on the guide screw, disperse the pulling force on the moving pulley to both, and reduce the load applied to the guide screw. To offer.

[0014]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cage hoisting apparatus for a car which hoists and lowers a cage using at least two pairs of wire ropes. , A drum in which the wire ropes are wound in a plurality of layers one by one according to the rotational driving force, and a guide arranged in parallel with the drum and rotated in conjunction with the rotation of the drum A screw, an operating head mounted so as to be movable left and right by rotation of the guide screw, and a wire rope of each pair which is fixed to both sides of the operating head and is extended from the cage and guided through a plurality of pulleys. A pair of path changing pulleys for changing the path in parallel with the operating head, and through the path changing pulley installed on the operating head Is a non-gastric car hoisting apparatus having a single drum, wherein a plurality of mobile pulleys, in that they are composed of guiding the wire rope of each pair that is long in the drum.

[0015] A wire rope is first attached to the single drum.
When the second winding layer is arranged and wound, the difference between the pair of wire ropes due to the difference in the diameter to be wound is set to have the same path distance.

When the operating head moves toward the first path changing pulley, the length of the first wire rope pair is reduced by the moving distance of the guide screw. Becomes longer, and conversely, if the working head moves toward the second rerouting pulley,
The length of the first wire rope pair becomes longer by the moving distance of the guide screw, the length of the second wire rope pair becomes shorter, and the relative length between the first and second wire rope pairs becomes the length of the guide screw. A double change in length occurs with movement.

In the cage winding device according to the present invention, the diameter of the first wire layer wound on the drum is D1,
The diameter of the second wire layer wound on one wire layer is D2,
And the distance between the centers of the wire ropes of the second ticket line layer is C, the distance is set so as to satisfy the relationship of the following mathematical formula 2.

(Equation 2) In the present invention, for example, when a four-wire wire rope is used, one drum may be used, as in a guide screw pitch × 2 = π × (D2-D1) = π × C × 2. Multi-layered winding reduces the size and load of the idler wheel to reduce screw wear and reduces the load applied to the guide screw and uneven wear by distributing the pulling force on the moving pulley to both sides. Can improve stability.

[0019]

Embodiments of the present invention will be described below.

FIG. 1 is an overall side view of an idler car cage hoisting apparatus using a single drum according to the present invention, FIG. 2 is a front view of the cage hoisting apparatus in FIG.
FIG. 3 is an enlarged view for explaining a change in the length of the wire rope at the time of one rotation of the guide screw and the drum in the cage winding device of FIG.

Referring to FIGS. 1 to 3, the structure of the cage hoisting device for an idle wheel using a single drum according to the present invention will be described.

In the cage hoisting apparatus of the present invention, as shown in the drawing, even when a four-wire wire rope is used, one drum 24 is rotatably installed on the main body of the apparatus, and the four-wire wire rope w1 to w1 is used. It has a structure in which w4 can be aligned and wound.

For this reason, in the present invention, the pulley of the single arm or the multi-stage arm 53 in which four wire ropes w1 to w4 from the cage 40 are formed symmetrically in a pair of two wires.
After passing through 41 to 47, two lines are connected to a pair of route change pulleys 27a and 27b arranged at the lower left and right sides of the body 35 of the vehicle,
Wire ropes (w1, w2) (w3,
w4) is connected so as to be wound on a single drum 24 as shown in FIG. 3 via moving pulleys 26a and 26b moving parallel to the drum 24 along the guide screw 29.

The rotational driving of the drum 24 is performed by rotating the rotating power generated by the driving motor 21 through the speed reducer 22 so that the shaft 22a of the speed reducer 22 and the gear 23 of the drum 24 are gear-coupled to each other. The screw 29 is connected to the drive chain 31 between the chain sprocket 30a of the drum 24 and the chain sprocket 30b of the guide screw 29, and is driven to rotate, whereby the screw 29 is screwed around the guide screw 29, and the pulleys 26a, 26b Nut 32
Moves left and right.

In this case, the operating head 36 supporting the nut 32 and the operating pulleys 26a, 26b has a structure in which rollers 37a, 37b are connected to the channel to reduce the moving frictional force. The shaft is rotatably supported by bearings 25a and 25b.

On the other hand, the single arm or the multi-stage arm 53 is installed in a structure having a small frictional resistance during movement by the rollers 52 installed in front and rear of the main body 35, and both ends of the arm 53 interconnecting the passive rollers 49. As the passive roller 49 is rotated left and right by the driving roller 50 through the driving belt 51 while being connected to the lower portion, the extension and contraction driving of the arm 53 is performed. Here, the present invention can also be applied to a case where the structure of the single arm or the multi-stage arm 53 and the extension / contraction drive employ some other method.

The main body 35 of such an idle car is installed on a guide rail 39 installed on the roof of a building 37 through a moving device 38, and can move to a desired position of the building along the rail. is there.

As shown in FIG. 3, the cage hoisting device for an idle car according to the present invention has a pair of wire ropes (w 1, w 2) (w 3, w 4) from the cage 40 via pulleys 41 to 48. Two lines are connected to a pair of route change pulleys 27a and 27b arranged at the lower left and right sides of the main body 35 of the wheelchair.

Next, the first route change pulley 27a
And the second wire ropes w1 and w2 are aligned and wound as the first line layer of the drum 24 through the first operation pulley 26a,
The third and fourth wire ropes w3 and w4 that have passed through the second path change pulley 27b are aligned and wound as the second ticket line layer of the drum 24 through the second operation pulley 26b.

In this case, even if the single rope 24 is wound with the wire ropes (w1, w2) and (w3, w4) as the first and second wire layers, even if the wire is wound by the difference in the diameter to be wound. The following means are provided to resolve the difference between the ropes (w1, w2) (w3, w4) and to have the same path distance.

First, when the first and second moving pulleys 26a and 26b move toward the first path changing pulley 27a or the second path changing pulley 27b along the guide screw 29, a two-wire wire rope (w1, w2) (w3, w4) are the first and second moving pulleys 26
The length of each wire rope (w1, w2) (w3, w4) changes according to the positions of a and 26b.

That is, the first and second wire ropes w1, w2
When the operating head 36 moves to the right side of FIG. 3, that is, toward the first path changing pulley 27a, the lengths of the first and second wire ropes w1 and w2 are shortened by the moving distance of the guide screw 29, The lengths of the third and fourth wire ropes w3 and w4 are increased.

Contrary to the above, when the operating head 36 moves to the left, the lengths of the first and second wire ropes w1 and w2 increase by the moving distance of the guide screw 29, and the third and fourth wire ropes w3 and w3 move. The length of w4 becomes shorter.

Then, the first and second wire ropes w1, w
The relative length between the second and third and fourth wire ropes w3 and w4 changes twice as long as the guide screw 29 moves.

For example, in FIG. 3, the diameter of each of the wire ropes w1 to w4 is dmm, and the pitch of the two-wire screw 24 of the drum 24 is
The pitch of the guide screws 29 is set to 10 mm, and the diameter of the chain sprockets 30a and 30b is set so that the guide screw 29 makes two rotations when the drum 24 makes one rotation.

In this case, as the drum 24 makes one rotation,
In conjunction with this, the pulley 26 moves along the guide screw 29
When the a and 26b move, the first and second wire ropes w1,
The relative length change between w2 and the third and fourth wire ropes w3 and w4 is (10 × 2) − (− 10 × 2) = 40 mm.

When the drum 24 makes one rotation, the first and second wire ropes w1 and w2 and the third and fourth wire ropes w
The length change of 3, w4 is the first and second wire rope w1, w2
The diameter of the wound wire is D1, the third and fourth wire rope
Assuming that the wound diameter of w3 and w4 is D2, the following equation 1 is obtained.

(Equation 1) π × (D2-D1) = π × C × 2 = 40 mm Here, C is the first and second wire ropes w1, w2 wound around the drum 24 and the third and second wire ropes w1, w2. This is the distance between the centers of the four wire ropes w3 and w4.

Therefore, when the wire rope is wound around the drum 24 in multiple layers as described above, if the length change of the wire rope is set so as to satisfy the relationship represented by the following mathematical formula 2, the wire 24 Even if the ropes w1 to w4 are wound up in multiple layers, the length of each rope of the cage 40 on which the worker is mounted does not change when the ropes are raised and lowered.

(Equation 2) Guide screw pitch × 2 = π × (D2-D1) = π × C × 2 Therefore, in the present invention, a pair of wire ropes
It can be wound into layers and is generally used mainly
The drum for the wire rope can now be wound as a single drum.

Furthermore, the wire rope can be easily wound into three or four layers at the same time with the same concept as described above.

Therefore, according to the present invention, when a plurality of pairs of wire ropes are used, a single drum can be wound in multiple layers in a line, thereby reducing the size and load of the wheel and reducing the wear of the guide screw. Can be reduced.

On the other hand, in the present invention, the wire rope is divided into the first and second wire ropes w1 and w2 and the third and fourth wire ropes w3 and w4, and the route ropes 27a and 27b pass through the moving pulleys 26a and 26b, respectively. Because it is connected, the pulling force on the moving pulley is dispersed on both sides and the guide screw
The load applied to 29 and uneven wear can be reduced. As a result, the moving pulley uniformly winds the wire ropes w1 to w4 around the drum 24 in association with the rotation of the drum, thereby preventing a safety accident caused by abrasion of the guide screw 29.

[0044]

As described above, according to the present invention, when two or more pairs of wire ropes are used, the size and the load of an insulated car can be reduced by performing a multilayer winding on one drum. The effect of reducing the wear of the guide screw and dispersing the pulling force on the moving pulley on both sides to reduce the load applied to the guide screw and the uneven wear can increase the safety.

[Brief description of the drawings]

FIG. 1 is a schematic overall side view of an idle wheel showing a cage hoisting device for the idle wheel using a single drum according to the present invention.

FIG. 2 is a schematic front view of the cage hoisting device in FIG.

FIG. 3 is an enlarged view for explaining a change in length of a wire rope during one rotation of a guide screw and a drum in the cage winding device of FIG. 2;

FIG. 4 is a front view, a side view, and an explanatory view of a winding operation on a drum of a conventional wheel hoisting apparatus for a wheeled vehicle using a dual type drum.

5A and 5B are a front view, a side view, and an explanatory view of a winding operation for the drum, showing a conventional cage hoisting apparatus for a wheeled vehicle using a dual type drum.

6A and 6B are a front view, a side view, and an explanatory view of a winding operation for a drum of a conventional wheel hoisting apparatus for a wheeled vehicle using a dual type drum.

[Explanation of symbols]

 21 ・ ・ ・ Drive motor 22 ・ ・ ・ Reducer 23 ・ ・ ・ Gear 24 ・ ・ ・ Drum 25a, 25b ・ ・ ・ Bearing 26a, 26b ・ ・ ・ Movable pulley 27a, 27b ・ ・ ・ Route change pulley 29 ・ ・ ・Guide screw 30a, 30b ・ ・ ・ Chain sprocket 31 ・ ・ ・ Driving chain 32 ・ ・ ・ Nut 35 ・ ・ ・ Body of an idle car 36 ・ ・ ・ Operating head 37 ・ ・ ・ Building 37a, 37b ・ ・ ・ Roller 40 ・..Cage 41-48 ・ ・ ・ Pulley 49 ・ ・ ・ Passive roller 50 ・ ・ ・ Drive roller 51 ・ ・ ・ Drive belt 52 ・ ・ ・ Roller 53 ・ ・ ・ Arm

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hay So Lee South Korea, Seoul, Yeondeungpoek, Dansan-dong 3-ga, Hanyang-Apartment 3-807 (56) References JP-A No. 10- 37452 (JP, A) JP-A-1-261189 (JP, A) JP-A-60-197579 (JP, A) JP-A-10-37700 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 9/187 B66D 1/38

Claims (4)

(57) [Claims] 1. A cage hoisting device for a wheeled car that hoists and lowers a cage using at least two pairs of wire ropes, a driving device for generating a rotational driving force, and the wire according to the rotational driving force. One drum in which a pair of ropes are wound in a plurality of layers, a guide screw arranged in parallel with the drum and rotated in conjunction with rotation of the drum, and mounted to be movable left and right by rotation of the guide screw A pair of path changers for changing a path of each pair of wire ropes fixedly provided on both sides of the operation head and extended from the cage and guided through a plurality of pulleys, in parallel with the operation head. A pulley; and a pair of wire ropes installed on the operating head and extended through the path changing pulley, and guided to the drum. And a plurality of moving pulleys, and a cage hoisting device for an idle wheel having a single drum. 2. When a single rope is aligned and wound with a wire rope as first and second wire layers,
2. The cage hoisting device of claim 1, wherein a difference between the wire rope pairs according to a difference in diameter to be wound is set to have a same path distance from each other. 3. The first wire rope pair, when the operating head moves toward the first path changing pulley, the length of the first wire rope pair is reduced by the moving distance of the guide screw, and the second wire rope is On the contrary, if the working head moves toward the second path change pulley, the length of the first wire rope pair becomes longer by the moving distance of the guide screw, and the length of the second wire rope pair becomes 2. The single drum according to claim 1, wherein the relative length between the first and second wire rope pairs changes twice as the guide screw moves. Cage hoisting device for trolleys having 4. The diameter of the first wire layer wound on the drum is D1, the diameter of the second wire layer wound on the first wire layer is D2, and the first and second wire layers are wound on the drum. The single drum according to any one of claims 1 to 3, wherein the distance is set so as to satisfy the following mathematical formula, where C is the distance between the centers of the wire ropes. Cage hoisting device for irrigation car. (Mathematical formula) Guide screw pitch x 2 = π x (D2-D1) = π x C x 2