KR20070106688A - Braking device for elevator traction machine and manufacturing method therefor - Google Patents

Abstract

A brake unit of elevator hoist machine that eases thickness reduction and size reduction, excelling in reliability and productivity. To obtain the same, a self fusion bonding wire and a prepreg tape are wound round a resin made bobbin. Subsequently, a glass tape is wound round the outside of the prepreg tape to thereby fix a wire binding part where lead wires are connected to the self fusion bonding wire onto the prepreg tape. Thereafter, while applying pressure with the glass tape held inside, electric current is passed through the self fusion bonding wire to thereby attain fusion bonding of the resin of the self fusion bonding wire and simultaneously attain fusion bonding of the resin used for impregnation of the prepreg tape. Thus, fixing of the glass tape onto the prepreg tape is accomplished.

Description

Brake device of elevator hoist and manufacturing method thereof {BRAKING DEVICE FOR ELEVATOR TRACTION MACHINE AND MANUFACTURING METHOD THEREFOR}

The present invention relates to a brake device that brakes rotation of a drive sheave of an elevator hoisting machine, and a method of manufacturing the same.

The brake device which brakes the rotation of the drive sheave of the hoist for elevator is arrange | positioned in the rotor drum which rotates in conjunction with a drive sheave, and makes a brake operate by pushing a brake lining to the inner peripheral surface (braking surface) of a rotor drum, That is, there is a thing which generates a braking force. Moreover, the brake apparatus which has the said structure is especially employ | adopted in the thin hoist provided in the hoistway of the elevator apparatus without a machine room. And the brake apparatus of such a structure normally releases a brake by moving a brake lining to the rotor circumferential surface and operating a brake, and moving a brake lining resisting the pressing force of a pushing spring. It is equipped with an electronic magnet.

In addition, in the prior art of the brake device, as a molding method of fixing an electron coil of an electron magnet to a shell, after placing the electron coil in the cell, a resin composition is formed between the cell and the electron coil. It flows, these are put into a thermostatic oven, and heat-hardening a resin composition is disclosed (for example, refer patent document 1).

Patent Document 1: Japanese Patent Laid-Open No. 11-136911 (FIG. 3)

Problems to be Solved by the Invention

As described in Patent Literature 1, as a method of fixing the electronic coil to the cell, when a method of casting and heat-curing the mold resin is employed, the mold resin has a predetermined peel strength and Since a thickness of a predetermined dimension or more that can cope with a certain degree of impact is required, it has become a factor that hinders miniaturization and thinning of the brake device. Moreover, as the said mold method, manufacture, such as mixing and stirring of mold resin before casting, preheating of a mold resin and a cell, casting, heat processing by a thermostat, edge treatment after mold resin hardening, etc. There existed a problem that productivity was remarkably bad in the process in various directions.

This invention is made | formed in order to solve the above-mentioned subject, The objective is to provide the brake apparatus of the hoist for elevators, and its manufacturing method which is easy to thin and small size, and is excellent in reliability and productivity.

Means for solving the problem

The brake device of the hoist for elevator according to the present invention includes a self-fusion line wound around a bobbin by a predetermined number of turns, a prepreg tape wound on the outside of the self-fusion line, and a magnetic field. A connection portion in which a lead wire is connected to the fusion line, a glass tape fixed to the prepreg tape by fixing the connection portion to the prepreg tape, and a resin impregnated in the prepreg tape; , With.

In addition, the brake device of the hoist for elevator according to the present invention includes a self-welding wire wound around a bobbin by a predetermined number of turns, a prepreg tape wound on the outside of the self-sealing wire, a connection part connected to a lead wire to the self-sealing wire, and a connection. The fixed iron core fixed to the prepreg tape and installed in the glass tape fixed to the prepreg tape by the resin impregnated in the prepreg tape and in the rotor drum which rotates in conjunction with the drive sheave of the elevator, , With.

The manufacturing method of the brake device of the elevator hoisting machine which concerns on this invention WHEREIN: The step of winding a self-fusion line to a predetermined winding bobbin, the step of winding a prepreg tape on the outer side of a self-fusion line, and winding a glass tape on the outer side of a prepreg tape. By fixing the connection portion connected to the lead wire to the self fusion wire by the prepreg tape, and by adhering the self fusion wire to the self fusion wire, and fusion of the self fusion wire and the glass impregnated with the prepreg tape. And a step of fixing the tape to the prepreg tape.

Effect of the Invention

The present invention relates to a self-fusion wire wound around a bobbin by a predetermined number of turns, a prepreg tape wound on an outer side of the self-fusion wire, a connection portion where a lead wire is connected to the self-fusion wire, and a connection portion fixed to the prepreg tape. The glass tape adhered to the prepreg tape by the resin impregnated with the leg tape and the structure are provided, and it is easy to thin and small, and is also excellent in reliability and productivity.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the brake apparatus of the hoist for elevators in Embodiment 1 of this invention.

FIG. 2 is a view seen from the arrow A-A in FIG. 1. FIG.

FIG. 3 is a detailed view of portion B in FIG. 2. FIG.

4 is a view seen from the arrow C-C in FIG.

FIG. 5 is a detailed view of the electromagnetic coil shown in FIG. 4.

It is a figure for demonstrating the manufacturing method of the brake apparatus of the hoist for elevators in Embodiment 1 of this invention.

<Description of the code>

1 housing, 2 rotor drums, 3 brake units,

4 brake linings, 5 spherical washer, 6 movable iron cores, 7 fixed iron cores,

7a one side, 7b receptacle, 8 electromagnetic coil, 9 push springs,

10 resin bobbin, 11 self-sealing line, 12 prepreg tape,

13 lead wires, 14 connection parts, 15 resin holder,

16 glass cloth tape, 17 room temperature curable two-component acrylic adhesive,

18a pressure plate, 18b pressure plate, 18c pressure plate,

18d pressurized plate

Preferred Mode for Carrying Out the Invention

BRIEF DESCRIPTION OF DRAWINGS To describe the invention in more detail, this is described in accordance with the accompanying drawings. In addition, the same code | symbol is attached | subjected to the same or corresponding part in each drawing, The duplication description is abbreviate | omitted suitably.

Example 1

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the brake apparatus of the hoist for elevators in Embodiment 1 of this invention. In Fig. 1, 1 is a housing of a thin hoist provided in a hoistway of an elevator apparatus without a machine room, and 2 is a rotor drum that rotates in conjunction with a drive sheave (not shown) on which an elevator main rope (not shown) is wound. 3 is a brake device provided in the rotor drum 2 to brake the rotation of the rotor drum 2 (drive sheave).

Here, the brake device 3 includes a brake lining 4 disposed to face the inner circumferential surface (braking surface) of the rotor drum 2 and a movable iron core for supporting the brake lining 4 through the spherical washer 5. 6) and a fixed iron core 7 which is disposed to face the movable iron core 6 and is fixed to the housing 1 through a fixing member, etc., and one side surface that faces the movable iron core 6 of the fixed iron core 7 ( Pushing to constantly press the movable iron core 6 outward so that the electromagnetic coil 8 provided in the 7a) and the fixed iron core 7 can be pushed to the inner circumferential surface of the rotor drum 2. A spring 9 is provided. In the brake device 3 having the above-described configuration, the brake lining 4 is pushed onto the inner circumferential surface of the rotor drum 2 by the pressing force of the pushing spring 9, so that a braking force is generated and the brake is operated. Moreover, when the electromagnetic coil 8 is energized and the suction force of an electromagnetic magnet is generated, the movable iron core 6 moves to one side surface 7a side of the fixed iron core 7 in response to the pressing force of the pushing spring 9. The brake is opened. In addition, at the time of brake opening, a predetermined gap is formed between the inner circumferential surface of the rotor drum 2 and the brake lining 4.

FIG. 2 is a view seen from the AA arrow in FIG. 1, FIG. 3 is a detailed view of the portion B in FIG. 2, FIG. 4 is a view seen from the CC arrow in FIG. 2, and FIG. 5 is shown in FIG. 4. 2 to 5 show the configuration of the electromagnetic magnet of the brake device 3 including the fixed iron core 7 and the electromagnetic coil 8. 2 to 5, the fixed iron core 7 has a long side 7a facing the movable iron core 6 in the vertical direction, and the thickness direction of the hoisting machine (brake device 3) (one side 7a). (Right and left directions), a short rectangular shape is shown, and the accommodating part 7b to which the electromagnetic coil 8 is accommodated and fixed to this one side surface 7a is formed by cutting etc.

Here, the said electromagnetic coil 8 is long in an up-down direction, the resin bobbin 10 which shows a substantially rectangular ring shape with a short short-to-short ratio in a left-right direction (thickness direction of a hoisting machine), and a resin bobbin ( 10) to cover the entire outer circumferential surface of the self-welding line 11 wound and coiled in a coil shape with a predetermined number of turns, and the self-welding line 11 wound in a coil shape on the resin bobbin 10. Prepreg tape 12 for insulation wound around the outer side of the self-fusion line 11, the connection part 14 which the lead wire 13 was connected to the self-fusion line 11, and a connection part (14) The resin holder 15 which covers the whole from the outer side of the prepreg tape 12, and protects and insulates the said connection part 14, and the outer side of the prepreg tape 12 and the resin holder 15 It is wound up, and the connection part 14 and the resin holder 15 are fixed to the prepreg tape 12, and the said prepreg tape 1 The glass cloth tape 16 which comprises the outermost layer fixed to the prepreg tape 12 by resin impregnated in 2) is provided.

The resin bobbin 10 is manufactured by, for example, an injection molding machine, and has a predetermined insulating property. In addition, since the resin bobbin 10 exhibits a substantially rectangular ring shape with a large long-term ratio, the self-fusion line 11 or the like wound around the resin bobbin 10 in a coil state is also long in the vertical direction and short in the left-right direction. It has a long rectangular ratio having a substantially rectangular ring shape, and each corner portion is formed into a curved surface having a predetermined curvature. And the said connection part 14 and the resin holder 15 are provided in the outer side of the corner part which shows the curved state of the self-fusion welding wire 11 wound in coil shape, This connection part 14 and resin The holder 15 is arrange | positioned so that the glass cloth tape 16 wound by the outer side may wind the resin holder 15 inward, and protrude in the up-down direction and the left-right direction. That is, the connection part 14 and the resin holder 15 are arrange | positioned so that the width | variety of the up-down direction and the width | variety of the left-right direction of the electromagnetic coil 8 may be fixed regardless of the presence or absence of the resin holder 15.

In addition, the prepreg tape 12 and the glass cloth tape 16 are wound so as to have a width slightly larger than the width of the U-shaped portion of the resin bobbin 10, and both edges thereof are made of resin bobbin 10. It is bent so that it may face each side in the U-shaped part of).

And the electromagnetic coil 8 which has the said structure is arrange | positioned in the accommodating part 7b by the resin bobbin 10 adhere | attached to the fixed iron core 7, and is fixed to the fixed iron core 7. In addition, the room temperature hardening type two-component acrylic adhesive 17 is used for fixing the resin bobbin 10 and the fixed iron core 7, for example. In order to secure a predetermined adhesive area, for example, the resin bobbin 10 and the fixed iron core are fixed such that the entire inner circumferential surface and one side surface of the resin bobbin 10 are fixed by the room temperature curing type two-component acrylic adhesive 17. The said room temperature hardening type two-component acrylic adhesive 17 is filled in the clearance gap with (7).

Next, the manufacturing method of the brake apparatus 3 which has the said structure is demonstrated. In the manufacture of the electromagnetic magnet, first, a self-fusion wire 11 is wound in a coil shape in a U-shaped portion of the resin bobbin 10 using a winding machine (not shown). Next, the self-welding line is impregnated with the resin in the heat-resistant support to cover the entire outer circumferential surface of the self-welding line 11 wound in a coil shape on the resin bobbin 10. We wind several times on the outside of (11). After winding the prepreg tape 12 on the outside of the self-fusion line 11, the resin holder 15 is disposed so as to cover the entire connection portion 14 to which the lead wire 13 is connected to the self-fusion line 11. Then, the glass cloth tape 16 is wound around the outer side of the prepreg tape 12 so that the resin holder 15 is wound inward, and the connection portion 14 and the resin holder 15 are prepreg. It is fixed to the tape 12. Then, after the self-fusion line 11, the prepreg tape 12, and the glass cloth tape 16 are wound in the U-shaped portion of the resin bobbin 10, the glass cloth tape 16 constituting the outermost layer is formed. ) Is pressed from the outside to the inside of the prepreg tape 12 and energized by the self-fusion line 11 while maintaining this pressurized state.

Here, FIG. 6 is a figure for demonstrating the manufacturing method of the brake apparatus of the hoist for elevators in Embodiment 1 of this invention, and the glass cloth tape 16 outside the electricity supply to the self-fusion line 11 outside. The pressurized state is shown. In Fig. 6, 18a to 18d are disposed at the center of each long side portion and the center of each short side portion of the electromagnetic coil 8 having a substantially rectangular ring shape, and the glass cloth tape 16 is moved inward with a predetermined force from all directions. Pressurizing plate to pressurize. Here, the said press plates 18a and 18b arrange | positioned at the center of each long side part of the electromagnetic coil 8, and the said press plates 18c and 18d arrange | positioned at the center of each short side part of the electromagnetic coil 8 are glass cloth tapes ( The glass cloth tape 16 is pressurized so that the distance between each pressurizing surface which contacts 16) becomes a predetermined value. In addition, each pressurizing surface of the press plates 18a-18d is arrange | positioned so that only the glass cloth tape 16 may contact at the time of the pressurization.

As the self-fusion line 11 is energized, the self-fusion line 11 generates heat and the resin of the self-fusion line 11 is fused. In addition, the self-fusion fusion wire 11 generates heat, and the prepreg tape 12 is heated, so that the resin impregnated in the prepreg tape 12 is also fused. For this reason, when the self-fusion line 11 is energized, the glass cloth tape 16 is fixed to the prepreg tape 12 by resin impregnated in the prepreg tape 12. In addition, the gap formed between the respective self-fusion lines 11 is filled with resin by energizing the self-fusion line 11, and the resin impregnated in the prepreg tape 12 is welded to form a self-fusion line ( The gap formed between 11) and the prepreg tape 12 and the gap formed between the prepreg tape 12 and the glass cloth tape 16 are filled with resin.

Then, after energizing the self-welding line 11 for a predetermined time to fuse the resin, the pressing plates 18a to 18d are separated from the surface of the glass cloth tape 16, and the electromagnetic coil 8 is fixed to the fixed core 7 It is arrange | positioned at the predetermined position in the accommodating part 7b. In addition, since the press plates 18a-18d are arrange | positioned so that each press surface may contact only the glass cloth tape 16, when the electricity is supplied to the self-fusion line 11, the prepreg by resin impregnated with the prepreg tape 12 is carried out. When the tape 12 and the pressure plates 18a to 18d are fixed to each other, the pressure plates 18a to 18d cannot be removed, or when the pressure plates 18a to 18d are removed, the surface state of the prepreg tape 12 is deteriorated to secure insulation. It can prevent the problem which becomes impossible.

And after arranging the electromagnetic coil 8 in the accommodating part 7b of the fixed iron core 7, the room temperature hardening type two-component acrylic adhesive agent was formed in the clearance gap formed between the resin bobbin 10 and the fixed iron core 7 ( 17) is filled, and the predetermined surface of the resin bobbin 10 is adhesively fixed to the fixed iron core 7.

The brake device 3 manufactured according to this manufacturing method is easy to thin and small, and is also excellent in reliability and productivity. That is, for thinning and miniaturizing the brake device 3, since the conventional mold resin is not used for the protection and fixing of the fusion line 11 and the connection portion 14, the mold resin is used. Predetermined thickness becomes unnecessary, and thinning and downsizing of the electromagnetic coil 8 become easy.

In addition, since the resin bobbin 10 exhibits a substantially rectangular ring shape with a large long-term ratio, when the self-fusion line 11 or the like is wound on the resin bobbin 10, the long side center and the short side center are outward. It tends to swell. Therefore, when energizing the fusion line 11, by pressurizing from the outside with the press plates 18a-18d, the width | variety of the up-down direction and the left-right direction of the electromagnetic coil 8 can be suppressed in predetermined dimension, and a brake apparatus It is possible to reduce the thickness and size of (3). Moreover, since the connection part 14 and the resin holder 15 are arrange | positioned on the outer side of a corner part which shows the curved state of the self-fusion line 11, it does not protrude in the up-down direction and the left-right direction of the electromagnetic coil 8, Since one part of the electromagnetic coil 8 does not blow out from the fixed iron core 7, and accommodates the electromagnetic coil 8, the one side surface 7a of the fixed iron core 7 having a large influence on the brake characteristic is large. It is not necessary to reduce or change the area of).

On the other hand, with regard to the reliability of the brake device 3, the functions of protection, fixing and heat dissipation of the coil (self-melting line 11) and the connection portion 14 that the mold resin has conventionally provided may be used in accordance with the above method. You can be satisfied enough. That is, the protection and insulation of the self-fusion line 11 can be sufficiently secured by the prepreg tape 12 wound on the outside of the self-fusion line 11. In addition, since the prepreg tape 12 is wound so as to have a width slightly larger than the width of the U-shaped portion of the resin bobbin 10, the prepreg tape 12 is somewhat at the time of fusion between the self-fusion line 11 and the prepreg tape 12. Even if the position difference occurs, the fusion spliced wire 11 is not exposed, and the fusion spliced wire 11 can be protected and insulated reliably.

In addition, the connection part 14 is reliably protected from the shock and vibration from the exterior by the resin holder 15. Here, the outer peripheral surface of the resin holder 15 is fixed by the adhesive force of the glass cloth tape 16, and the glass cloth tape 16 which fixes the resin holder 15 is attached to the prepreg tape 12. The impregnated resin is fixed to the prepreg tape 12 by fusion welding. Therefore, the holder 15 made of resin can be securely fixed to prevent the position shift of the connection portion 14, and also the insulation deterioration caused by the position shift of the connection portion 14 can be reliably prevented. In addition, the glass cloth tape 16 is pressurized to the inside, that is, the prepreg tape 12 side by the pressure plates 18a to 18d when energizing the self-fusion line 11. ) Can be securely fixed to the prepreg tape 12.

Moreover, the connection part 14 is provided in the coil shape of the self-fusion fusion | wire 11 by providing the connection part 14 just outside the corner part which shows the curved state of the self-fusion fusion | wire 11 wound in coil shape. Compared with the case where it is installed away from the wound portion, the length of the self-melting wire 11 extending outward from the coil wound portion can be shortened, so that the protection structure can be simplified and the reliability of the insulation can be improved. have. Moreover, the said wiring part 14 caulks the lead wire 13 to the self-fusion fusion wire 11, for example, and insulates the caulking part with insulating tape, an insulation tube, etc., Predetermined insulation is ensured.

Moreover, since the resin bobbin 10 is manufactured with an injection molding machine etc., deformation | transformation, such as a curvature and a torsion, arises at the time of cooling after shaping | molding. Therefore, at the time of fixing the resin bobbin 10 and the fixed iron core 7, the gap formed between the resin bobbin 10 and the fixed iron core 7 is filled with a room temperature curing type two-component acrylic adhesive 17. By adopting a method of dispersing, it is possible to distribute the load to the entire mounting surface of the resin bobbin 10 to relieve stress, and to prevent damage to the resin bobbin 10 due to stress concentration, creep, or the like. It becomes possible.

On the other hand, regarding the heat dissipation of the electromagnetic magnet, the gap between the self-fusion line 11, the gap between the self-fusion line 11 and the resin bobbin 10, the self-fusion line 11 and the prepreg tape 12 Since the gap and the gap between the prepreg tape 12 and the glass cloth tape 16 are filled with resin, respectively, sufficient thermal conductivity is ensured, and Joule heat generated in the self-fusion line 11 during the brake operation ( It is possible to efficiently discharge Joule's heat to the outside. Moreover, since the clearance gap formed between the resin bobbin 10 and the fixed iron core 7 is filled with the normal temperature hardening type two-component acrylic adhesive 17, the heat conduction between the resin bobbin 10 and the fixed iron core 7 is carried out. You can also secure enough castle. Accordingly, Joule heat generated in the self-fusion line 11 can be efficiently transmitted to the fixed iron core 7 during the brake operation, thereby preventing local temperature rise of the portion formed in the coil shape of the self-fusion line 11. It is possible.

Moreover, regarding productivity of the brake apparatus 3, the process of winding the fusion | melting fusion | melting line 11, the prepreg tape 12, and the glass cloth tape 16, and energizing the fusion | melting line 11 are carried out. And the step of fusion bonding the resin of the self-sealing line 11 and fusion bonding the resin impregnated in the prepreg tape 12 to fix the glass cloth tape 16 to the prepreg tape 12, the electromagnetic coil. By the process of adhering (8) to the fixed iron core 7, an electronic magnet can be manufactured, and the manufacturing process can be simplified and the manufacturing time can be shortened compared with the conventional mold method. In particular, the glass cloth tape 16 is highly precisely carried out by fusion of the resin of the self-melting wire 11 and the resin impregnated in the prepreg tape 12 only by energizing the self-sealing wire 11. This can greatly simplify the work process.

Moreover, by using the adhesive of normal temperature hardening type for adhesion | attachment between the resin bobbin 10 and the fixed iron core 7, it is also possible to make a thermostat unnecessary, and to improve work efficiency. Moreover, although the method of attaching the resin holder 15 for protecting the connection part 14 with the adhesive etc. on the outer peripheral surface of the prepreg tape 12 can also be considered, the resin holder 15 until the adhesive hardens. Since it is necessary to maintain the process, and a manufacturing process and manufacturing time increase, it is not a comfort.

As described above, according to the brake device of the elevator hoisting machine according to the present invention, since the thinning and downsizing are easy, the elevator hoisting machine itself can be thinned and downsized, and the elevator apparatus without a machine room has a lot of limitations in the installation space of the hoisting machine. In particular, the effect is exhibited. Moreover, since it is excellent in reliability and productivity, various effects, such as a cost reduction and a short delivery date, can be expected.

Claims (8)

A self-sealing fusion line wound around a bobbin by a predetermined number of turns; A prepreg tape wound on the outside of the self-fusion line, A connection portion in which a lead wire is connected to the fusion welding wire, A glass tape fixed to the prepreg tape by a resin impregnated with the prepreg tape while fixing the connection portion to the prepreg tape; Brake device of the hoist for elevator, characterized in that provided. A self-welding line wound with a predetermined number of turns wound on the bobbin, A prepreg tape wound on the outside of the self-fusion line, A connection portion in which a lead wire is connected to the self-fusion wire; A glass tape fixed to the prepreg tape by a resin impregnated with the prepreg tape while fixing the connection portion to the prepreg tape; A fixed iron core installed in the rotor drum which rotates in association with a drive sheave of an elevator, wherein the bobbin is fixed; Brake device of the hoist for elevator, characterized in that provided. The method according to claim 1 or 2, The connection part is provided outside the corner as long as it shows the curved state of the self-fusion line, A holder for protecting and insulating the connection part from the outside of the prepreg tape is provided outside the one corner of the self-sealing line. The brake device of the hoist for elevators characterized by the above-mentioned. The method according to claim 3, The self-fusion line wound around the bobbin has a long rectangular ring shape in the vertical direction, long in the vertical direction, the brake device of the hoist for elevator, characterized in that. The method according to claim 3 or 4, A glass tape is wound around the outer side of the prepreg tape and the holder, and the holder is fixed to the prepreg tape, and is fixed to the prepreg tape by resin impregnated in the prepreg tape. Brake device. Winding the self-sealing line to a predetermined number of bobbins, Winding a prepreg tape on the outside of the self-sealing line; Fixing the connecting portion, in which a lead wire is connected to the self-fusion line, to the prepreg tape by winding a glass tape on the outside of the prepreg tape; By energizing the self-sealing wire, bonding the self-sealing wire and fixing the glass tape to the prepreg tape by resin impregnated with the prepreg tape; The manufacturing method of the brake apparatus of the hoist for elevator characterized by the above-mentioned. The method according to claim 6, Pressurizing the glass tape wound on the outside of the prepreg tape to the inside before energizing the self-fusion line; The manufacturing method of the brake apparatus of the hoist for elevator characterized by the above-mentioned. The method according to claim 6 or 7, After the electricity supply to self-fusion line, the step of adhesively fixing a bobbin to a fixed iron core, The manufacturing method of the brake apparatus of the hoist for elevator characterized by the above-mentioned.

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