JP2019104597A - Brake device and elevator device having the same - Google Patents

Abstract

To provide a brake device capable of always maintaining appropriate braking performance without spoiling convenience of an elevator user.SOLUTION: A brake device comprises: a braked body 13 rotationally driven by a main shaft 11a of a hoist motor 11; pressing bodies 31a, 31b which apply braking force to the braked body 13; brake driving mechanisms 14a, 14b which move the pressing bodies 31a, 31b to a brake operation position to be pressed onto the surface of the braked body 13 or a brake releasing position to be separated from the surface of the braked body 13; a control board 10 which controls the driving of the pressing bodies 31a, 31b through brake drive mechanisms 14a, 14b; and a cleaning member 15 pressed against the surface of the braked body 13 at all times so as to clean a projection plane of the pressing bodies 31a, 31b projected on the braked body 13 which is rotationally being driven.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a brake device and an elevator device provided with the same.

  The hoisting machine of the elevator apparatus is provided with a braking device that brakes the elevator car while moving up and down and holds the stopped elevator car in the stop position. The brake device includes a braked body such as a brake disc attached to a main shaft of a hoist motor, a pressing body such as a brake pad pressed against the braked body, and a pressing body from a brake release position to a brake operation position or It comprises a brake drive mechanism that drives from the operating position to the brake release position, and a control panel that controls the drive of the pressing body via the brake drive mechanism.

  Since the body to be braked is formed of cast iron or the like, rust may be generated on the surface due to moisture, and there is a concern that the braking performance may deteriorate if this is left. As a means for preventing such concern, conventionally, when a predetermined start condition is satisfied, the control panel moves the car to a predetermined operation start floor, and then, the rise and fall of the car and An invention has been proposed which performs a braking operation for removing rust generated on the braked body by controlling the pressing of the pressing body against the braked body and the separation of the pressing body from the braked body (for example, for example) , Patent Document 1).

Unexamined-Japanese-Patent No. 2014-125292

  However, according to the invention described in Patent Document 1, a predetermined time has elapsed from the previous brake sliding operation, and a predetermined start condition, for example, that a call has not occurred and that the car is stopped. And, when the absence of a passenger in the car and the like is established, the brake slide-over operation is automatically performed. Therefore, the user may use the elevator during the brake slide-over operation. It can not be done, which causes the operating rate of the elevator apparatus to decrease. Further, the invention described in Patent Document 1 is configured to carry out the brake sliding operation only when the predetermined start condition is satisfied, so the brake sliding operation can not always be carried out regularly, and the brake There is also a possibility that the braking performance may be reduced due to the delay in the sliding operation. For this reason, the prior art has room for further improvement in order to maintain the brake device.

  The present invention has been made in view of the problems of the prior art, and an object thereof is to provide a brake device and an elevator device capable of always maintaining appropriate brake performance without impairing the convenience of the elevator user. It is to do.

  In order to achieve the above object, according to one aspect of the present invention, a braked body rotationally driven by a main shaft of a hoist motor, a pressing body for applying a braking force to the braked body, and the pressing body are braked The brake drive mechanism that switches to the operating position or the brake release position, the control panel that controls the drive of the pressing body via the brake drive mechanism, and the surface of the braked body that is constantly pressed And a cleaning member configured to clean the projection surface of the pressing body projected onto the braking body.

  According to the present invention, since the cleaning of the object to be braked is always performed by the cleaning member, the convenience of the elevator user is not impaired, and appropriate braking performance can be maintained. Problems, configurations, and effects other than those described above will be apparent from the description of the embodiments described below.

It is a schematic block diagram of the elevator apparatus which concerns on embodiment. It is a perspective view of a winding machine provided with a brake device concerning an embodiment. It is a front view which shows arrangement | positioning of the to-be-quenched body which concerns on embodiment, a brake drive mechanism, a press body, and a cleaning member. It is a side view which shows arrangement | positioning of the to-be-quenched body which concerns on embodiment, a brake drive mechanism, a press body, and a cleaning member.

  Hereinafter, embodiments of a brake device according to the present invention and an elevator device provided with the same will be described based on the drawings.

  FIG. 1: is a schematic block diagram of the elevator apparatus 1 which concerns on embodiment. As shown in FIG. 1, the elevator apparatus 1 according to the present embodiment includes a car 3 moving up and down the hoistway 2, a balance weight 5 connected to the car 3 via a main rope 4, and an upper portion of the hoistway 2. A hoisting machine 7 disposed in the machine room 6 provided in the car for moving up and down the car 3 and the counterweight 5 by driving the main ropes 4, and a plurality of hoisting machines 7 (FIG. In the example, three brake devices 8, a deflecting wheel 9 of a main rope 4 disposed in the vicinity of the hoisting machine 7, and a control panel 10 which controls driving and stopping of the hoisting machine 7 and the braking device 8. And.

  FIG. 2 is a perspective view of a hoist including the brake device according to the embodiment. As shown in FIG. 2, in the winding machine 7 of this example, a cylindrical sheave having a winding motor 11 as a power source and a main rope 4 wound thereon and rotationally driven by a main shaft 11 a of the winding motor 11 A disc-like braked body (brake disc) 13 coaxially arranged with the sheave 12 and rotationally driven by the main shaft 11a of the hoist motor 11 and a braked body disposed on an outer peripheral portion of the braked body 13 13, brake driving mechanisms 14a and 14b disposed opposite to each other, pressing bodies (brake pads) 31a and 31b provided on the surface of the brake driving mechanisms 14a and 14b facing the braked body 13, and braked bodies And a cleaning member 15 disposed so as to straddle the outer peripheral portion of 13. The brake device 8 according to the embodiment is configured of the brake target 13, the brake drive mechanisms 14a and 14b, the pressing members 31a and 31b, and the cleaning member 15.

  The brake drive mechanisms 14a and 14b drive the pressing bodies 31a and 31b to the brake operating position in which the pressed bodies 31a and 31b are pressed by the braked body 13 or the brake release position separated from the braked body 13 according to a command from the control panel 10. Do. Although only one set of the brake drive mechanisms 14a and 14b and the pressing bodies 31a and 31b is displayed in FIG. 2, the brake drive mechanisms 14a have the same number as the brake devices 8 provided in the hoisting machine 7 in practice. , 14b and pressing bodies 31a, 31b. That is, as in the elevator apparatus 1 shown in FIG. 1, in the hoisting machine 7 provided with the three brake devices 8, three sets of brake drive mechanisms 14 a and 14 b and pressure along the circumferential direction of the braked object 13 Bodies 31a, 31b are provided.

  FIG.3 and FIG.4 is the front view and side view which show arrangement | positioning of the to-be-quenched body which concerns on embodiment, a brake drive mechanism, a pressing body, and a cleaning member. As shown in FIGS. 3 and 4, the cleaning member 15 according to the embodiment includes a body portion 16 formed in a U-shaped cross section, a metal brush 17 attached to the inner surface of the body portion 16 and a wiping member 18 and an air nozzle 19. The metal brush 17 is a cleaning tool for removing rust generated on the surface of the body 13 to be damped, and the wiping member 18 is a cleaning tool for wiping off deposits such as dust and water droplets adhering to the surface of the body 13 to be damped. In addition, the air nozzle 19 is a cleaning tool for blowing away adhering substances such as dust and water droplets adhering to the surface of the object 13 to be damped.

  Note that the cleaning member 15 does not have to include all of the metal brush 17, the wiping member 18, and the air nozzle 19, and it is sufficient to include at least one type of cleaning tool. In addition, the cleaning member 15 can also be equipped with cleaning tools other than the metal brush 17, the wiping member 18 and the air nozzle 19. Furthermore, although only one cleaning member 15 is provided in the example of FIG. 3, a plurality of cleaning members 15 can be disposed along the circumferential direction of the object 13 to be braked. In addition, although the air nozzle 19 is disposed between the metal brush 17 and the wiping member 18 in FIG. 3, the arrangement of the cleaning tools is not limited to this, and may be changed as appropriate.

  As shown in FIG. 3, the metal brush 17 and the wiping member 18 can clean at least the projection surface (cross hatch portion in FIG. 3) of the pressing bodies 31a and 31b projected on the braked body 13 during rotational driving. It arrange | positions with respect to the to-be-braked body 13. FIG. That is, in the present embodiment, the length dimension B of the metal brush 17 and the wiping member 18 is formed larger than the width A of the projection surfaces of the pressing bodies 31a and 31b projected onto the object to be damped 13 during rotational driving. The metal brush 17 and the wiping member 18 are disposed relative to the brake target 13 so as to cover the entire projection surface.

  As shown in FIG. 4, the metal brush 17 is disposed between the base portion 21, the plurality of metal wires 22 embedded in the base portion 21, and the main portion 16 and the base portion 21. And a biasing member 23 for pressing the surface of the body 13 to be braked. Since the metal brush 17 has such a configuration, the tip of the metal wire 22 is always pressed against the braked body 13 by the biasing force of the biasing member 23, and the tip portion of the metal wire 22 and the braked body 13 By the frictional force acting between the surface of the object and the surface of the object to be damped, the rust generated on the surface of the object to be damped 13 can be scraped off. Therefore, the fall of the brake performance resulting from generation | occurrence | production of rust can be prevented.

  In addition, as the metal wire 22 which comprises the metal brush 17, as shown in FIG. 4, the wire diameter D is larger than the clearance C of the to-be-controlled body 13 and press body 31a, 31b in a brake open position (C <= D Is used. Thereby, even if the metal wire 22 is broken, the intrusion of the broken metal wire 22 into the clearance C is prevented, and the deterioration of the braking performance due to the intrusion of the metal wire 22 can be prevented.

  The wiping member 18 is made of, for example, a woven fabric, a knitted fabric, or a non-woven fabric, and is attached to the base 21 like the metal brush 17 and always pressed against the braked body 13 by the biasing force of the biasing member 23. Since the wiping member 18 has such a configuration, the wiping member 18 is always pressed against the braked body 13 by the biasing force of the biasing member 23, and dust, water droplets, etc. adhering to the surface of the braked body 13 You can wipe it off. Therefore, it is possible to prevent the deterioration of the braking performance due to the adhesion of dust, water droplets and the like.

  The air nozzle 19 is connected to an air source (not shown) such as an air pump, and jets dry air onto the surface of the object 13 to be braked. The injection of dry air can be carried out either continuously or in pulses. When dry air is jetted in a pulsed manner onto the surface of the braked body 13, the effect of removing deposits from the surface of the braked body 13 can be further enhanced. When dry air is injected onto the surface of the body to be damped 13, not only can the deposits adhering to the surface of the damped body 13 be removed by the pressure of the dry air, but also the surface of the damped body 13 can be dried. While being able to suppress, the fall of the frictional force which acts between the to-be-restrained body 13 and press body 31a, 31b can be prevented, and appropriate brake performance can be maintained.

  As described above, the elevator apparatus 1 and the brake apparatus 8 according to the embodiment include the cleaning member 15 that is always pressed against the surface of the braked body 13, so cleaning of the braked body 13 is always performed, which is appropriate. Maintain good braking performance. In addition, since the control panel 10 does not need to perform a special cleaning operation different from the normal operation mode, the convenience of the elevator user is not impaired.

  The present invention is not limited to the above-described embodiment, and includes variously modified forms without departing from the scope of the present invention described in the claims. For example, in the said embodiment, although the elevator apparatus 1 provided with the machine room 6 was demonstrated to the example, it is applicable also to the machine room less type elevator apparatus which does not have the machine room 6. FIG.

  Moreover, in the said embodiment, although the elevator apparatus of a 1: 1 roping system was shown (refer FIG. 1), it is applicable also to the elevator apparatus of other roping systems, such as 2: 1 roping system, for example.

  Furthermore, in the embodiment, the brake disc is provided as the braked body 13 and the brake pad is provided as the pressing bodies 31a and 31b, but it is rotationally driven by the main shaft 11a of the hoisting motor 11 as the braked body 13. It is possible to provide a brake drum as well as a brake lining that is pressed against the circumferential surface of the brake drum as the pressing bodies 31a and 31b.

  DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus, 2 ... A hoistway, 3 ... Car cage, 4 ... Main rope, 5 ... Balance weight, 6 ... Machine room, 7 ... Winding machine, 8 ... Brake apparatus, 9 ... Warring car, 11 ... Winding up Electric motor 11a: main shaft 12, 12: sheave, 13: braked body, 14a, 14b: brake drive mechanism, 15: cleaning member, 16: main body, 17: metal brush, 18: wiping member, 19: air nozzle, 21: ... Base portion, 22: metal wire, 23: biasing member, 31a, 31b: pressing body.

Claims (5)

A braked body rotationally driven by a main shaft of a hoist motor;
A pressing body for applying a braking force to the braked body;
A brake drive mechanism for switching the pressing body to a brake operation position or a brake release position;
A control panel for controlling the drive of the pressing body via the brake drive mechanism;
A cleaning member which is always pressed against the surface of the object to be damped and cleans the projection surface of the pressing body projected on the object to be damped during rotational driving;
A brake device characterized by comprising. In the brake device according to claim 1,
The cleaning member includes at least one of a metal brush for removing rust generated on the surface of the body to be damped and a wiping member for wiping off a deposit attached to the surface of the body to be damped. Brake equipment. In the brake device according to claim 2,
In addition to the cleaning member, an air nozzle for blowing off solid or liquid adhering to the surface of the object to be damped is provided. In the brake device according to any one of claims 2 or 3,
The metal brush is configured by an assembly of a plurality of metal wires, and the metal wire is formed between the braked body and the pressing body when the pressing body is in the brake release position. A brake device characterized by having a wire diameter larger than the clearance. A hoisting motor having a sheave on which a main rope is wound, a car and a counterweight connected to both ends of the main rope, a main shaft for rotationally driving the sheave, and a braking force applied to the hoist motor And a braking device to
The brake device is disposed concentrically with the sheave, and applies a braking force to the braked body by pressing the braked body to be rotationally driven by the main shaft of the hoisting motor and the surface of the braked body A pressing body, a brake driving mechanism for moving the pressing body to a brake operating position pressed to the surface of the braked body or a brake release position disconnected from the surface of the braked body, and the brake driving mechanism A control panel for controlling the driving of the pressing body, and a cleaning member which is always pressed against the surface of the braking body and cleans the projection surface of the pressing body projected onto the braking body during rotational driving; The elevator apparatus characterized by having.

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