JPH06263369A - Elevator - Google Patents

Abstract

PURPOSE:To provide an elevator which can be conveniently installed on a construction site for a high-rise building in order to convey machinery and materials up to a high place, and which can be easily and successively shifted to an upper floor. CONSTITUTION:In an elevator in which an elevator bed is moved up and down by a pulley mechanism, the leading and trailing ends of a wire rope 1 are connected to a guide frame 11 laid at a predetermined height in a shaft space Q, with a predetermined distance therebetween. Further, an elevator bed 2 and a counter weight W are suspended from an intermediate part of the wire rope 1 through the intermediary of pulley mechanisms (a, b), and the wire rope 1 is wound on a reversible drum 13 and an auxiliary drum 14 by several turns. Further, the auxiliary drum can steppedly approach the drum 13 so that the distance L between the centers of the drums 14, 13 can be adjusted, thereby it is possible to arbitrarily set the elevating distance of the elevating bed 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator which can be easily installed to transport equipment to a high place at a construction site such as a high-rise building. The elevator that can be relocated.

[0002]

2. Description of the Related Art Conventionally, when constructing a high-rise building or the like, a simple elevator is attached for construction, and equipment, building materials and the like are carried in and out.

Such an elevator is generally of a traction type, in which an elevator is suspended at one end of a wire rope and a counterweight is suspended at the other end of the wire rope. The wire rope is arranged on the top of the elevator. It is wound around the forward / reverse drive drum of the drive unit and lifted up and down by utilizing the frictional force between the drum and the wire rope.

At the construction site, it is usually mounted outside the building for constructing the elevator.

[0005]

However, the above-mentioned elevator still has the following problems to be solved.

[0006] That is, in the above elevator, when the construction progresses and the floor of the building is increased upward, the height of the elevator that can be raised and lowered must be extended. I had to lift up with the drive that was placed on top of.

Further, the length of the wire rope must be changed according to the height of the building, and the work of moving the elevator has become very troublesome.

Further, since the above-mentioned large-scale work is required, the elevator is attached to the outside of the building. However, as the floor goes up, it is more likely to be affected by the wind, and in some cases, the outer wall of the building may be damaged. There was also a risk of contact with the lift.

An object of the present invention is to provide an elevator capable of solving the above problems.

[0010]

According to the present invention, in an elevator in which an elevator is vertically movable by a pulley mechanism, a wire rope is provided at a certain interval on a guide frame provided at a predetermined height in an elevator space. In addition to fastening the base end and the end of each, the suspension table and the counterweight are suspended through the pulley mechanism in the middle of the wire rope.
The wire rope is to provide an elevator characterized in that the wire rope is wound around a forward / reverse driving drum and a sub-drum, which are arranged in a state of facing each other at the bottom of the elevator space.

Further, according to the present invention, the auxiliary drum can be gradually brought closer to the forward / reverse drive drum so that the distance between the two can be adjusted, and the vertical movement distance of the elevator can be set arbitrarily. It is characterized by being configured into.

[0012]

Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

FIG. 1 is a schematic explanatory view of an elevator A according to the present invention, FIG. 2 is a side view of the elevator A, and FIG. 3 is an explanatory view showing a state in which the elevator A is attached to a high-rise building B. .

In this embodiment, the elevator A is installed in a high-rise building B having a height of about 140 m above the ground, as shown in FIG.

Then, inside the same high-rise building B, a lifting space Q
In the same space Q, an elevating table 2 is suspended by three wire ropes 1 and is arranged to be vertically movable. In the figure,
Reference numeral 3 is a drive unit of the elevator A arranged on the underground surface F, and the drive unit 3 will be described in detail later.

As shown in FIG. 1, the elevator A is a traction type, and as shown in FIG. 1, a guide frame 11 provided at a predetermined height in the ascending / descending space Q is spaced apart by a fixed distance from the base end 1a and the end of the wire rope 1. 1b and the wire rope 1
In the middle of the process, the lifting table 2 and the counterweight W are suspended via the pulley mechanisms a and b, and the wire rope 1 is arranged in a state of being opposed to the driving unit 3 provided at the bottom of the lifting space Q. It is wound around the reverse drive drum 13 and the sub drum 14 in multiple layers.

Then, the auxiliary drum 14 can be gradually brought closer to the forward / reverse drive drum 13 so that the center-to-center distance L between the two can be adjusted, and the vertical movement distance of the elevator base 2 can be arbitrarily set. It is characterized by being configured into.

That is, in the elevator A according to the present invention, unlike the conventional elevator, the elevator base 2 and the counterweight W are not fastened to both ends of the wire rope 1, respectively, but in the middle of the wire rope 1. Pulley mechanisms a and b, respectively
Is suspended through. In addition, the wire rope 1 is wound around the forward / reverse drive drum 13 and the auxiliary drum 14 of the drive unit 3 in multiple layers.

For the sake of clarity, in the schematic diagram shown in FIG. 1, the counter weight W is arranged on the right side of the lift table 2 on the carry-in side, but when the lift A is actually mounted, In the example, the counterweight W is arranged at a position where it does not hinder the carrying-in of equipment or the like, for example, at the front side in FIG.

The structure of the elevator A will be described in more detail below.

As shown in FIGS. 2 and 4, the lifting table 2 disposed in the lifting space Q has a base 15 and gate-shaped vertical frames 16 and 16 standing on the base 15, It is composed of a vertical frame 16 and a horizontal frame 17 for suspension support installed between the frames 16.

Then, the rotary roller 6 is attached to the vertical frames 16 and 16, and the roller 6 is attached to the inner wall 4 such as a wall body forming an ascending / descending space Q.
The elevating table 2 is disposed so as to abut the guide rail 5 provided on the upper part of the table, so that stable elevating and lowering without lateral shaking during elevating and lowering is possible.

Further, pulleys 18, 18 are attached to the horizontal frame 17 for hanging suspension at regular intervals, and are arranged in a plurality of fixed pulleys 19 arranged in the guide frame 11 and the drive section 3. The wire rope 1 is wound around the guide roller 20 to form a pulley mechanism a. In this embodiment, three wire ropes 1 are used, and therefore, the pulleys 18 and 19 have triple specifications (see FIG. 4).

Reference numeral 21 shown in FIG. 2 denotes a driving roller arranged on the base 15 in a large number, which makes it easy to carry equipment and the like into the lift 2.

A forward / reverse drive drum 13 and a sub-drum 14 disposed opposite to the drum 13 are arranged in the drive section 3 installed on the underground surface F below the elevator table 2 having the above-described structure. The wire rope 1 is wound around the drums 13 and 14 in multiple layers. Reference numeral 23 is a mounting frame on which both drums 13 and 14 are mounted.

As shown in FIG. 5, an electric motor 9 is attached to one end of the forward / reverse drive drum 13 via a speed reducer 8 so that the forward / reverse drive drum 13 can be driven. The traction force is transmitted to the wire rope 1 by the frictional force between the wire rope 1 and the wire rope 1. The speed reducer 8 includes a forward / reverse drive drum 13
It is attached to one end of a forward / reverse drive shaft 13a that pivotally supports, and an electromagnetic brake is provided between the reduction gear 8 and the electric motor 9.

A hydraulic cylinder is provided on the left and right of the sub drum 14.
7 and 7 are attached, and the auxiliary cylinder 14
Is configured to be movable to the forward / reverse drive drum 13 side.

That is, the sub-drum shaft 14 that pivotally supports the sub-drum 14
A bearing 22 is provided on a and the left and right outer bearings of the bearing 22
The pistons 7a and 7a of the hydraulic cylinders 7 and 7 arranged on the mounting frame 23 are attached to 22a and 22b in a stretched state.

Then, by contracting the strokes of the hydraulic cylinders 7, 7, the auxiliary drum 14 is moved forward and backward.
6 and the hydraulic cylinders 7, 7 are movable so that the inter-center distance L between the auxiliary drum 14 and the forward / reverse drive drum 13 can be adjusted as shown in FIG. Reference numeral 24 is a cylinder mounting hole formed in the upper surface of the end portion of the mounting frame 23, and 14b and 7b are mounting bolts.

As described above, the wire rope 1 has 3
Since this is used, the forward / reverse drive drum 13 and the auxiliary drum 14 of the drive unit 3 are also triple specifications in which three drums are provided on the same axis.

As shown in FIG. 2, the wire rope 1 for suspending the lifting table 2 has its base end 1a fastened to the guide frame 11,
While suspending the lifting platform 2 via the pulleys 18, 18 provided on the suspension horizontal frame 17 of the lifting platform 2 and the plurality of fixed pulleys 19 provided on the guide frame 11, the outermost fixed pulley 19 is suspended. It winds and extends downward, and then extends to the sub-drum 14 side through the guide roller 20 arranged on the forward / reverse drive drum 13 side of the drive unit 3 and is wound on the sub-drum 14 and the forward / reverse drive drum 13 in multiple layers. I am turning.

Further, it extends upward through a guide roller 20 provided on the side of the auxiliary drum 14 and again through a pulley mechanism b composed of pulleys 25, 25 and movable pulleys 26, 26 provided on the guide frame 11. The counterweight W is suspended and the end 1b is fastened to the guide frame 11.

The winding amount of the wire rope 1 between the forward / reverse driving drum 13 and the auxiliary drum 14 is 40 in this embodiment, and the center-to-center distance L between the drums 13 and 14 is 12.5. m, wire rope 1 is both drums 13,14
It will have a stock length of about 1,130 m in between.
(The diameter of the forward / reverse drive drum 13 is 1,300 mm, and the diameter of the auxiliary drum 14 is 800 mm.) Therefore, the hydraulic cylinders 7 and 7 move the auxiliary drum 14 closer to the forward / reverse drive drum 13 side. When the stroke limit of the hydraulic cylinder 7 is reached, by moving the hydraulic cylinders 7, 7 themselves in stages, for example, if the inter-center distance L is halved, about 500 m
It is possible to extend upwards, but since the lifting platform 2 is raised via the two moving pulleys 18,18, the actual lifting distance is 1/4.
In this case, the maximum extension is about 125 m.

If the height of the mounting position of the guide frame 11 is set to 15 m, the high-rise building B (ground height 140
It is possible to go up and down to the top floor of m).

By configuring the elevator A as described above, it is possible to freely set the lifting amount of the lifting table 2 simply by adjusting the inter-center distance L.

That is, when the building construction progresses to the required height of the elevator A, the guide frame 11 is arranged at the required position, the elevator A is attached, and the wire rope 1 is mounted between the forward / reverse drive drum 13 and the auxiliary drum 14. And set it to the required length in advance.

When the construction progresses and the height of the building B becomes higher and the amount of lifting is changed, the lifting table 2 is lowered and the hydraulic cylinder 7 is used to move the auxiliary drum 14 to the forward / reverse driving drum 13 side by a required amount. The inter-center distance L can be shortened by placing the guide frame 11 close to the guide frame 11 and the guide frame 11 can be installed at a required position.

When this operation is repeated and the stroke limit of the hydraulic cylinder 7 is reached, the inter-center distance L can be adjusted by moving the hydraulic cylinder 7 itself in a stepwise manner. It can be changed arbitrarily.

By the above-mentioned operation, it is possible to obtain the amount of movement in the height direction of the wire rope 1 according to the length adjusted by the inter-center distance L. Therefore, the amount of elevation of the elevator A is also large. can do.

At this time, it is not necessary to move the drive unit 3 disposed separately from the lifting table 2, and it is not necessary to replace the wire rope 1 every time the elevator A is moved. Since both ends 1a, 1b of the elevator are mounted and only the guide frame 11 in which the pulley mechanisms a, b are arranged need only be moved upward as necessary, it is troublesome to increase the lifting amount of the elevator A. It is efficient and can improve the work efficiency of the entire construction.

Further, since the lifting platform 2 can be made lighter, the counterweight W balanced with the lifting platform 2 can be downsized.

Furthermore, since the drive unit 3 is still installed, the elevator A can be installed inside the building, so that it is not affected by wind and rain, and the safety when carrying in the equipment can be improved.

[0043]

According to the present invention, the base end and the end of the wire rope are fastened to a guide frame provided at a predetermined height in the ascending / descending space at regular intervals.
In the middle of the wire rope, the elevator and the counterweight are suspended via the pulley mechanism, and the wire rope is
By multiplying the forward / reverse drive drum and the auxiliary drum, which are arranged facing each other at the bottom of the elevating space, in multiple turns, it is possible to reduce the weight of the elevating table, so that a counterweight that balances with the elevating table is also provided. Miniaturization is possible.

Further, since the forward / reverse drive drum and the auxiliary drum are still installed, the elevator can be installed inside the building, so that it is not affected by wind and rain and the safety at the time of carrying in the equipment can be improved. it can.

When increasing the amount of movement of the elevator,
There is no need to move the drive unit including the forward / reverse drive drum and the auxiliary drum, which saves labor.

With respect to the forward / reverse drive drum, the auxiliary drum is constructed so that it can be brought closer to each other stepwise, and the distance between the two can be adjusted.
By configuring the lifting distance of the lifting platform to be set arbitrarily, the wire rope can be wound between the forward / reverse drive drum and the auxiliary drum and set to the required length in advance, so that construction can proceed and high-rise buildings can be built. As the floor space is increased and the amount of elevation is increased, the amount of elevation of the elevator can be easily increased.

Further, since it is not necessary to replace the wire rope, the work is extremely easy.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of an elevator according to the present invention.

FIG. 2 is an explanatory view of the elevator in a side view.

FIG. 3 is an explanatory view showing a state in which the elevator is attached.

FIG. 4 is a plan view of a lift table.

FIG. 5 is an explanatory diagram of a drive unit in plan view.

FIG. 6 is a side view of the drive unit.

[Explanation of symbols]

 1 Wire rope 1a Base end 1b Terminal end 2 Lifting platform 11 Guide frame 13 Forward / reverse drive drum 14 Secondary drum a Pulley mechanism b Pulley mechanism L Inter-center distance Q Lifting space W Counterweight

Claims (2)

[Claims] 1. An elevator in which an elevator platform is vertically movable by means of a pulley mechanism. A wire rope (1) is provided in a guide frame (11) provided at a predetermined height in an elevator space (Q) at regular intervals. ) Is fastened to the base end (1a) and the end (1b) of the wire rope (1), and the pulley mechanism (a),
The lifting table (2) and the counterweight (W) are suspended via the (b), and the wire rope (1) is installed at the lowermost part of the lifting space (Q) so as to face each other. An elevator characterized in that it is wound around the auxiliary drum (14) and the auxiliary drum (14) in multiple layers. 2. A center distance between the forward and reverse drive drums (13), wherein the auxiliary drum (14) is configured so as to be capable of approaching in a stepwise manner.
The elevator according to claim 1, characterized in that (L) is adjustable, and the lifting movement distance of the lifting platform (2) can be arbitrarily set.