KR930009157B1 - Device of door switch gear for elevator - Google Patents

Abstract

A door opening/closing apparatus for an elevator includes 44 hanger roller frames, a second bracket supporting a back iron by interposing a first bracket, a secondary plate, a primary core plate stack member for applying negative power to the secondary plate, a roller rotating with the track formed on the second bracket, a door track for horizontally guiding the hanger rollers, a deviation roller for preventing the deformation of the door track, a pair of pulleys rotatably installed by interposing a fixed axis, an interlocking rope installed on the pulley, and a pair of clamps for opening or closing left and right doors simultaneously, thereby simplifying the structure and preventing noise and vibration.

Description

Elevator Door Opener

1 is a schematic configuration diagram of a door opening and closing device in a conventional elevator.

2 is a front view schematically showing the opening and closing device of the door of the elevator in one embodiment of the present invention.

3 is a cross-sectional view taken along the line II of FIG. 2.

4 is a plan view of arrow II-II of FIG. 2;

5 is a plan view of a primary core plate of a linear motor applied to an embodiment of the present invention.

Figure 6 is a plan view of the dotted line A part of Figure 2 for explaining the opening and closing device of the door according to the drive of the linear motor to the door opening and closing device of the elevator according to the present invention.

* Explanation of symbols for main parts of the drawings

2: motor 3: driving pulley

4: hanger roller 6,7: wire rope

9: idle pulley 11A: fixing member

12: mounting plate 21: door

22L: Hanger Roller Frame 22R: Hanger Roller Frame

24: Back Iron 26: First Bracket

28: second bracket 29H, 29L: roller

30: secondary plate 40: primary core plate laminate

42: bracket 41: slot

48: hanger roller 50: door track

50A, 50B: Coking part 52: Eccentric roller

55L, 55R: Pulley 56R, 56L: Fixed Shaft

57: interlocking rope

The present invention relates to a door opening and closing device of an elevator, and more particularly, to a door opening and closing device of an elevator using a linear motor.

In general, as the opening and closing device of the door of a conventional elevator, there is one shown in FIG. As shown in FIG. 1, the motor 2 for driving the door is mounted on the upper part of the base B, and the doors 1A and 1B provided on the lower part are mounted on the rails 5 by the hanger rollers 4. It slides left and right, respectively, while suspended above. In addition, two wire ropes 6 and 7 are wound around the drive pulley 3 with respect to each other, and these inner ends are pressed and fixed by clamp members (not shown).

Therefore, one wire rope 6 is fixed to the fixing member 11A disposed at the upper end of the right door 1B via the idle pulley 9 on the left side, and the other wire rope 7 is on the right side. By fixing to the fixing member 11B via the idle pulley 10 of the drive, the drive pulley 3 is rotated left and right according to the driving of the motor 2 so that the door on the right is moved left and right. .

At this time, the mounting plate 12 disposed at the upper end for the opening and closing operation of the left door is fixed to the upward line of the left wire rope 6, so that the opening and closing operation is performed in the opposite direction to the right door 1B. Therefore, the left and right doors are opened while being pushed to the opposite side at the same time, and on the contrary, the doors are closed while moving to the center of each other.

By the way, in the door opening and closing apparatus of the elevator of such a configuration, since the power source of all the mechanical systems is configured to convert to the required motions, for example, linear motion, rotational motion, reciprocating motion, etc. using the rotational force of the electric motor, Not only is it complicated and heavy, and there is a problem in that noise or vibration is frequently generated and required to be repaired to convert the rotational motion into a linear motion. In addition, the complicated structure requires a lot of time and effort when installing or assembling, and also has a problem in that adjustment is difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of these various problems, and an object of the present invention is to provide a door opening and closing device of an elevator which is simple in structure and easy to maintain, while at the same time obtaining linear motion without using a reduction mechanism or a linkage device. It is.

Still another object of the present invention is to provide a door opening and closing device of an elevator that can obtain a propulsion force without friction and has no noise or vibration, and can hold a stroke freely regardless of the opening length of the door.

In order to achieve the above object, the door opening and closing apparatus of an elevator according to the present invention is provided on the left and right sides of the door, four hanger roller frames disposed on the upper part of the door, and disposed on an upper part of the right door among the hanger roller frames. A second bracket for supporting the back iron disposed through the first bracket on the hanger roller frame, a secondary plate disposed on the back iron, and one side fixed to the cage of the elevator. A primary core plate laminate disposed at a predetermined gap with respect to the secondary plate to apply the secondary force to the secondary plate, and a track formed on the second bracket according to the secondary force when the secondary plate is applied with the secondary force. Rollers engaged with and rotating in the cage, and disposed in the cage of the elevator A door track horizontally guiding the hanger rollers disposed through the fixed frame in the roller frame, and an eccentric roller disposed at the lower part of the hanger rollers to prevent deformation of the door tracks under the load of the occupant and to maintain a linear motion. A pair of pulleys rotatably disposed on both sides of the door track via a fixed shaft; The pair of clamps are fixed to the hanger roller frame and arranged to simultaneously open and close the left and right doors according to the rotation of the interlocking rope.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a front view schematically showing the opening and closing device of the door of the elevator according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of the arrow I-I line of FIG. 2, and FIG. 4 is an arrow II-II of FIG. 5 is a plan view of a primary core plate of a linear motor applied to an embodiment of the present invention, and FIG. 6 is a plan view of a door according to driving of the linear motor in the door opening and closing device of an elevator according to the present invention. It is a top view of the dotted line A part of FIG. 2 for demonstrating the opening / closing operation | movement.

In FIGS. 2-5, 21 is an elevator door and this door 21 is comprised by the right door 21R which opens to the right, and the left door 21L which moves to the left. . As shown in detail in FIG. 3, four hanger roller frames 22L, 22L, 22R, and 22R are disposed on the upper part of the door 21, and four hanger roller frames 22L, 22L, 22R, and 22R are disposed. The second bracket 28 supporting the back iron 24 is welded to the first bracket 26 by welding or the like on the hanger roller frames 22R and 22R disposed on the upper side of the right side door 21R. It is stuck. Here, the second bracket 28 is formed symmetrically with respect to its center in the longitudinal direction, and upper and lower tracks 28H and 28L for guiding the rollers to be described later are formed, respectively. Each of the end portions of the 28H and 28L, for example, the upper portion of the upper track 28H, the flange portion 28P which prevents the separation of the 44 rollers 29H, and the lower portion of the lower track 28L similarly have four rollers ( The flange portion 28Q which prevents the separation of 29L) is formed, respectively, and on the back iron 24 fixed to the second bracket 26, the secondary plate 30 constituting the secondary core of the linear motor is provided. It is fixed along the longitudinal direction.

In the drawing, reference numeral 40 denotes a primary core laminate disposed with a gap of several mm with respect to the secondary plate 30, and the primary core laminate 40 includes a plurality of primary core plates. An upper bracket 44H having a generally B-shaped cross section at both ends of the primary core plate fixing bracket 42 while being fixed to a cage of an elevator (not shown) via the primary core plate fixing bracket 42. And lower brackets 44L, respectively, and two pairs of eight rollers 29H, 29L are formed on the second bracket 28 at the upper and lower portions of the upper and lower brackets 44H and 44L, respectively. It is engaged with the roller track 28H, 28L which exists. Therefore, when AC power is applied to the primary core plate laminate 40 from an inverter device (not shown), a force in a direction entering from the ground or coming out of the ground is generated in the drawing of FIG. The hanger roller frame 22R (or 22L) fixed to the upper portion is moved to the left or the right side through the second and first brackets 28 and 26 to move the door 21 of the elevator. It is supposed to be. Here, the linear motor is constituted by the back iron 24, the secondary plate 30, and the primary core plate laminate 40, and as shown in detail in FIG. 5, the primary core plate laminate ( 40 is a laminate of a plurality of primary core plates having 36 slots 41 formed on a silicon steel sheet having a thickness of 0.5 mm, and is not shown in the drawings for convenience of description. In the slot 41, a coil is wound so as to give the secondary plate 30 a force in the direction of arrow A in Fig. 4 or the opposite direction when a three-phase AC power is applied from an inverter device (not shown).

In the drawing, reference numeral 48 denotes a hanger roller rotatably disposed on the hanger roller frames 22R, 22R, 22L22L via a support shaft 48A, and the recess 48A of the hanger roller 48 is formed. Inverter (not shown) is engaged with the coking parts 50A and 50B formed along the longitudinal direction at the distal end of the door track 50 having a generally C-shaped long angle fixed to the cage of the elevator. When AC power is applied from the device to the primary core laminate 40, a force in the direction entering or exiting from the ground is generated in the drawing of FIG. 3 and supported by the hanger roller frame 22R (or 22L). Since the hanger roller 48 fixed to the shaft 48A is rotated to the left or the right, the door 21 opens and closes via an interlocking rope wound around a pulley described later. The hanger roller is mounted on the support shaft 52A fixed to the hanger roller frames 22R and 22L below the lower side of the door track 50, for example, below the caulking portion 50B of the door track 50. The eccentric roller 52 is rotatably disposed to prevent the deformation of the door track 50 by the load of the occupant while being linked with the driving of the 48 and to maintain the linear motion.

In Fig. 6, 55R and 55L are left and right pulleys rotatably disposed near the both ends of the upper part of the door track 50 via the fixed shafts 56R and 56L. These pulleys 55R and 55L are shown in Figs. When the AC power is applied to the primary core plate laminate 40, the secondary plate 30 has a force acting as shown by arrow C or arrow D shown in FIG. When the interlocking rope 57 is rotated, the interlocking rope 57 is moved to the left side when the force of the linear motor is output in the direction of the arrow C while the left door 21L is moved to the left. Clamps 23R and 23L having one side portion fixed to the hanger roller frames 22R and 22L are fixed to move to the right to close the door 21 of the elevator. In other words, when the force of the linear motor is output in the direction of the arrow D, the right side 21R moves the right door 21R to the right and the left door 21L to the left to open the door 21 of the elevator. Clamps 22R and 22L secured to hanger roller frames 22R and 22L, respectively, are fixed to interlocking ropes 57, respectively.

Next, the operation and effect of the door opening and closing apparatus of the elevator according to the embodiment of the present invention configured as described above will be described.

First, the case where the door 21 of an elevator is opened is demonstrated. First, when a three-phase AC power supply is applied to the primary core plate laminate 40 of the linear motor from an inverter device not shown, the secondary core is laminated in the direction of arrow A in FIG. 4 from the primary core plate laminate 40. A force that biases the plate 30 is generated. At this time, since the primary core plate laminate 40 and the door track 50 are fixed to the cage of the elevator, respectively, between the eight rollers 29H and 29L disposed in the upper and lower brackets 44H and 44L to be rotatable. The second bracket 28 slides and slides to move the first bracket 26 and the hanger roller frame 22R in the direction of arrow A in FIG. 4 (arrow D in FIG. 6). Then, since the general part side of the clamp 23R is fixed to the hanger roller frame 22R, and the other end side of the clamp 23R is fixed to the interlocking rope 57, according to the movement of the hanger roller frame 28R. While moving the right door 21R to the right (in the direction of arrow D in FIG. 6), one end side of the clamp 23L is fixed to the hanger roller frame 22L, and the other end side of the clamp 23L. Since it is fixed to the interlocking rope 57, the door of the elevator is opened by moving the left door 21L to the left in accordance with the movement of the hanger roller frame 22L (in the direction of arrow C in FIG. 6). When the door 21 is opened in this manner, the hanger roller 48 along the door track 50 fixed to the cage of the elevator is also recessed 48A and the coking portions 50A and 50B of the door track 50. And horizontally moved in the direction of arrow D of FIG. At this time, the eccentric roller 52 is rotated while supporting the lower portion of the door track 50 in order to prevent deformation of the door track 50 by the load of the passengers of the elevator and to maintain linear movement.

On the other hand, when it is desired to close the door 21 while the door 21 of the elevator is open as described above, three-phase AC power is applied from the inverter device (not shown) to the primary core laminate 40 of the linear motor. (At this time, an electrical input whose phase is reversed is applied so that a force acts as opposed to when the door is opened.), The secondary plate (from the primary core plate laminate 40 in the direction opposite to the arrow A in FIG. 4) Force is generated. At this time, since the primary core plate laminate 40 and the door track 50 are fixed to the cage of the elevator, respectively, between the eight rollers 29H and 29L disposed in the upper and lower brackets 44H and 44L to be rotatable. The second bracket 28 slides and slides to horizontally move the first bracket 26 and the hanger roller frame 22R in the direction opposite to the arrow A direction in FIG. 4 (arrow C in FIG. 6). . Then, one end side of the clamp 23R is fixed to the hanger roller frame 22R, and the other end side of the clamp 23R is fixed to the interlocking rope 57, so that the hanger roller frame 28R moves. By moving the right door 21R to the left (in the direction of arrow C in FIG. 6), one end of the clamp 23L is fixed to the hanger roller frame 22L, and the other of the clamp 23L. Since the end side is fixed to the interlocking rope 57, the left door 21L is moved to the right in accordance with the movement of the hanger roller frame 22L (movement in the direction of arrow D in FIG. 6) so that the elevator door 21 To close it. When the door 21 is closed in this way, the hanger roller 48 along the door track 50 fixed to the cage of the elevator also has its recess 48A and the coking portions 50A and 50B of the door track 50. And horizontally moved in the direction of arrow D of FIG. In this case, as in the case of opening the door of the elevator, the eccentric roller 52 rotates while supporting the lower portion of the door track 50 in order to prevent the deformation of the door track 50 by the load of the passenger of the elevator and to maintain the linear motion. It is supposed to be.

As described above, since the door opening and closing apparatus of the elevator of the present invention does not require any link mechanism for converting the linear motion, the rotary motion, the reciprocating motion, etc. as in the related art, the structure is simple, the weight is light, and the linear motor By opening and closing the door of the elevator by the linear motion generated by the noise or vibration does not occur, and because the structure is simple, it is easy to install or assemble.

As described above, according to the door opening and closing apparatus of the elevator of the present invention, the linear motion generated by the linear motor is transmitted to the interlocking rope via the second bracket, the first bracket, the hanger roller frame, and the clamp, thereby turning the interlocking rope. It is designed to open and close the door of the elevator. Therefore, the linear motion can be obtained without using the reduction mechanism or linkage, and the structure is simple, so the maintenance is easy and the driving force can be obtained without friction. There is no vibration, and there is a very good effect of being able to hold the stroke freely regardless of the opening length of the door.

Claims (6)

A bag disposed on the right and left doors, 44 hanger roller frames disposed on the upper part of the door, and a first bracket on the hanger roller frame disposed on the upper part of the right door among the hanger roller frames. A second clearance supporting the iron, a secondary plate disposed on the back iron, and one side fixed to the cage of the elevator, and a predetermined gap with respect to the secondary plate to apply a subordinate force to the secondary plate when power is applied. When the primary core plate laminate and the secondary plate excreted with the secondary force is applied, the roller is engaged with the track formed on the second bracket and rotates according to the secondary force, and is disposed in the cage of the elevator. Door to guide horizontally the hanger rollers installed on the elevator through the fixed shaft And an eccentric roller disposed in the lower portion of the hanger roller to prevent deformation of the door track under the load of the occupant, and to maintain a linear motion, and to be rotatable through a fixed shaft near the both ends of the door track. A pair of pulleys disposed, a linkage rope disposed to pivot on the pulley when the secondary plate is moved, and one side is fixed to the linkage rope and the other side is fixed to the frame by the hanger roller and the other side is fixed to the linkage rope and the other side is hanger roller. The door opening and closing device of the elevator, characterized in that it is fixed to the frame made of a pair of clamps arranged to open and close the left and right doors at the same time according to the swing. The method of claim 1, wherein the second bracket is formed symmetrically with respect to the center of the longitudinal direction, the upper and lower tracks for guiding the rollers are formed, respectively, the upper of the upper track is separated from the four rollers An elevator door opening and closing device is provided, and a flange part for preventing separation of four rollers is formed in the lower part of the lower track as well. 2. The door opening and closing device of an elevator according to claim 1, wherein the back iron (24) forms a linear motor together with the secondary plate (30) and the primary core plate stack (40). 2. The door opening and closing device of an elevator according to claim 1, wherein the door track has a c-shape and has a caulking portion which is engaged with the recess of the hanger roller along the longitudinal direction at the top and bottom portions thereof. The elevator door opening and closing apparatus according to claim 1, wherein the primary core plate laminate has a plurality of primary core plates having 36 slots formed on a silicon steel sheet. The door opening and closing device of an elevator according to claim 1, wherein the roller is rotatably disposed on an upper and lower brackets disposed on upper and lower ends of the primary core plate laminate.