JP3298425B2 - Elevator rail brake device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a rail brake device for an elevator .

[0002]

2. Description of the Related Art FIG. 9 is a perspective view showing a conventional linear motor elevator disclosed in, for example, JP-A-7-149487. In the figure, a stator 2 is supported on an upper frame 1 by upper and lower support structures 3 and 4, and a movable weight 6 is mounted on a balancing weight frame 5 coupled to the stator 2.
Is installed. A balancing weight guide roller 7 is provided on both sides of the balancing weight frame 5,
Is in contact with the balancing weight guide rail 8 (hereinafter, referred to as “guide rail 8”). Balanced weight frame 5
Is hung by a rope 9, and the rope 9 is connected to a car 11 via a number of pulleys 10a and 10b. A car guide roller 12 is provided on both sides of the car 11 and is in contact with a car guide rail 13. Further, a rail brake device 17 is provided below the counterweight frame 5. In the conventional linear motor type elevator, the rail brake device 17 brakes the operation of the car 11 by frictional force due to surface contact with the protruding side of the guide rail 8.
An electromagnet is used as a drive source for driving the motor 7. Now, an example of the rail brake device 17 will be described as follows. First, the basic configuration of the electromagnet is shown in FIG.
The field 21 in which the coil 22 is installed, the armature 23 installed opposite the field 21 and attracted to the field 21 by a magnetic force, the field 21 and the armature 23
And a spring 24 that widens the gap between the field 21 and the armature 23 when there is no magnetomotive force. The field 21 and the armature 23 are linearly moved relative to each other by a guide pin and a guide hole (not shown). FIG. 11 shows a conventional rail brake device using the electromagnetic magnet shown in FIG. 10. One end of each of brake arms 25 and 26 is connected to a field 21 and an armature 23, respectively. Lining 2 on the opposite end
7, 28 are fixed, and each brake arm 25, 2
The intermediate portion 6 is connected by a shaft 29 so as to be relatively rotatable. The shaft 29 is fixed to the counterweight frame 5. Reference numeral 8 denotes a guide rail. on the other hand,
FIGS. 12 and 13 show a more specific embodiment of the rail brake device shown in FIG. 11, in which a support shaft 30 passing through an intermediate portion inside the armature 23 and the field 21 is connected to one end of a rear brake arm 25 by a shaft pin 31. A bracket 32 is connected to one end of the front brake arm 26 by a shaft pin 33, the field 21 around which the coil 22 is wound is fixed to the bracket 32, and a spring 24 is mounted on the outer peripheral surface of the support shaft 30. Is inserted, and the spring 2
The washer 34 is inserted in the field 21 side seat surface of No. 4. 12 and 13, the same parts as those of the configuration of FIG. In the figure, reference numeral 35 denotes a power input coil wire, and 36 denotes a power output coil wire.

Next, the operation will be described. In the conventional linear motor elevator as shown in FIG. 9, when a current is applied to the mover 6, an induction magnetic field is generated between the mover 6 and the stator 2, and the thrust generated thereby causes the mover 6 to move. Is moved by the stator 2, and the cage 11 is connected to the balancing weight frame 5 by the rope 9 by the movement of the movable element 6.
Moves in a direction relative to the balancing weight frame 5. Further, in the conventional rail brake device shown in FIG. 11, when the gap between the field 21 and the armature 23 becomes large, the guide rail 8 is strongly gripped while the gap between the runnings 27 and 28 on the opposite side becomes narrow. When the operation of the car 11 is stopped and the gap between the field 21 and the armature 23 is reduced, the car 11 can be operated while the gap between the linings 27 and 28 is increased. Also, in the rail brake device as shown in FIGS. 12 and 13, when a current is applied to the coil 22 for operating the elevator, the field 21 is overcome while overcoming the elasticity of the spring 24 inserted into the support shaft 30.
And the armature 23 are close to each other, so that the gap is narrowed. Therefore, the brake arms 25 and 26 rotate about the shaft 29, and the gap between the linings 27 and 28 on the opposite side is increased, and the armature 23 is separated from the guide rail 8. Become. On the other hand, when the supply of current to the coil 22 is stopped when the elevator stops, the gap between the field 21 and the armature 23 increases due to the restoring force of the spring 24 inserted into the support shaft 30, and the lining 27, Since the gap 28 is narrowed, it is pressed against the guide rail 8.

[0004]

In the conventional rail brake device 17, when checking and adjusting the gap between the field 21 of the electromagnetic magnet 22 and the armature 23, the measurement is performed by inserting a gap metal into the gap. Since the circumference of the electromagnetic magnet 22 is surrounded by the balancing weight frame 5, the gap is viewed obliquely, and the gap between the gaps is difficult to understand. Did not. In addition, the gap is difficult to insert because it is surrounded, and the gap is bent because the back side of the stacked gap is not visible at all.
There is a problem in that it takes too much time to check and adjust the gap between the field 21 and the armature 23 of FIG. In the conventional rail brake device 17, when checking the restoring force of the spring 24, the spring 24 is mounted inside the electromagnetic magnet 22 and the length of the spring 24 cannot be directly measured. And the armature 23 is disassembled, and the thickness of the washer 34 is subtracted from the depth of the spring 21 of the field 21 to determine the length of the spring.
The restoring force was calculated. Then, the conventional rail brake device 17 adjusts the restoring force of the spring 24 in the same manner as when confirming the restoring force.
And the armature 23 must be disassembled and the thickness of the washer 34 must be changed and adjusted, so that it takes too much time to confirm and adjust the restoring force of the spring 24.

[0005] The present invention has been made to solve the above problems, and an object of the present invention is to provide a rail brake device which is easy to adjust and maintain.

[0006]

An elevator rail brake device according to the present invention is an elevator rail brake device that performs brake braking by opening and closing first and second linings to contact an end surface of a guide rail. An electromagnetic magnet provided with an armature, a field having a coil therein, and a spring for urging the armature and the field in a direction to separate the field during braking, and providing the first lining at one end and providing the armature with A first arm connected to move in conjunction with the movement of the first lining; and a second lining provided at one end so that the field moves in conjunction with the movement of the second lining. A second arm connected to the first arm and the second arm. The direction of suction of the field and the armature is perpendicular to the moving direction of the first and second lining, visually gap between the field and the armature
The electromagnetic magnet is arranged at a position where it can be made .

[0007] Further, an electromagnetic magnet provided with an armature and a field having a coil therein, a spring for urging the armature and the field in a direction of separating the brake during braking, and the first lining at one end. A first arm provided with the spring, and a second arm provided with the second lining at one end and connected to the field and having a spring shaft fixed at the other end. the direction of suction and compression direction and the field and the armature of the spring is perpendicular to the moving direction of the lining of the second arm, the fields and the
Place the spring and the upper part in a position where the gap with the armature can be seen.
And an electromagnetic magnet .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. Hereinafter, a first embodiment of the present invention will be described. 1 is a plan view of the rail brake device, FIG. 2 is a front view of the rail brake device of FIG. 1, FIG. 3 is a plan view of the rear brake arm 25, and FIG. 4 is a plan view of the front brake arm 26. In the figure, linings 27 and 28 are fixed to one end of the rear brake arm 25 and the front brake arm 26, and the middle part of the rear brake arm 25 and the other end of the front brake arm 26 are fixed by a shaft 29 fixed. They are connected so as to be relatively rotatable. On the other hand, the opposite end of the rear brake arm 25 is connected to a support shaft 30 passing through an intermediate portion inside the field 21 and the armature 23 by an axis pin 31, and the intermediate portion of the front brake arm 26 is connected to a bracket 32 by an axis. The field 21 in which the coil 22 is wound around the bracket 32 is fixed, and the support shaft 30
A spring 24 is inserted into the outer peripheral surface of the spring 24, and a washer 34 is inserted into a seat surface of the spring 24 on the field 21 side.

In the rail brake device of the first embodiment, when current is applied to the coil 22 for operating the elevator, the field 21 and the armature are overcome while overcoming the elasticity of the spring 24 inserted into the support shaft 30. 23
And the gap becomes narrower, so that the brake arms 25 and 26 rotate about the shaft 29, so that the gap between the linings 27 and 28 on the opposite side becomes larger and separates from the guide rail 8. On the other hand, when the supply of current to the coil 22 is stopped when the elevator stops, the gap between the field 21 and the armature 23 increases due to the restoring force of the spring 24 inserted into the support shaft 30, and the lining 27, Since the gap 28 is narrowed, it is pressed against the guide rail 8.

Embodiment 2 Hereinafter, a second embodiment of the present invention will be described. FIG. 5 is a plan view of the rail brake device, and FIGS. 6, 7, and 8 are a front view, a rear view, and a left side view of the rail brake device shown in FIG. 5, respectively. In the figure, linings 27 and 28 are fixed to one end of the rear brake arm 25 and the front brake arm 26, and an intermediate portion of each of the brake arms 25 and 26 is connected by a shaft 29 so as to be relatively rotatable. on the other hand,
The opposite end of the rear brake arm 25 is the field 21
And a support shaft 30 passing through an intermediate portion inside the armature 23
Are connected by a shaft pin 31, a bracket 32 is connected to an intermediate portion of the front brake arm 26 by a shaft pin 33, and the field 21 in which the coil 22 is wound around the bracket 32 is fixed. The spring 24 is in contact with an intermediate portion of the rear brake arm 25, and a spring shaft 37 is fixed to the opposite end of the front brake arm 26.

In the rail brake device of the second embodiment, when a current is applied to the coil 22 for operating the elevator, the field 21 and the armature are overcome while overcoming the elasticity of the spring 24 inserted into the spring shaft 37. 23
And the gap becomes narrower, so that the brake arms 25 and 26 rotate about the shaft 29, so that the gap between the linings 27 and 28 on the opposite side becomes larger and separates from the guide rail 8. On the other hand, when the supply of current to the coil 22 is interrupted when the elevator stops, the gap between the field 21 and the armature 23 increases due to the restoring force of the spring 24 inserted into the spring shaft 37, and the lining 27, Since the gap 28 is narrowed, it is pressed against the guide rail 8.

[0012]

As it is evident from the foregoing description, since the gap between the field and the armature in the electromagnet Les Rubureki device is configured to allow visual inspection according to the present invention,
There is an effect that an elevator rail brake device that is easy to confirm, adjust, and maintain in a gap between a field and an armature in an electromagnetic magnet is obtained.

Further, the spring length of the record Rubureki device is configured to allow visual inspection, the effect of the rail brake device easy elevator confirmation and adjustment and maintenance restoring force of the spring is obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a rail brake device according to a first embodiment of the present invention.

FIG. 2 is a front view showing the rail brake device according to the first embodiment of the present invention.

FIG. 3 is a plan view showing a rear brake arm of the rail brake device according to the first embodiment of the present invention.

FIG. 4 is a plan view showing a front brake arm of the rail brake device according to the first embodiment of the present invention.

FIG. 5 is a plan view showing a rail brake device according to a second embodiment of the present invention.

FIG. 6 is a front view showing a rail brake device according to a second embodiment of the present invention.

FIG. 7 is a rear view of FIG. 6 showing a rail brake device according to a second embodiment of the present invention.

FIG. 8 is a left side view of FIG. 5 showing a rail brake device according to a second embodiment of the present invention.

FIG. 9 is a perspective view showing a conventional linear motor elevator.

FIG. 10 is a configuration diagram of a general electromagnet.

FIG. 11 is a configuration diagram of a conventional rail brake device using a general electromagnet.

FIG. 12 is a perspective view showing a conventional rail brake device of a linear motor type elevator.

FIG. 13 is a cross sectional view showing a conventional rail brake device of a linear motor type elevator.

[Explanation of symbols]

1 upper frame, 2 stators, 3 upper support structure, 4
Lower support structure, 5 weight frame, 6 mover, 7
Weight guide roller, 8 Weight guide rail, 9 rope, 10 pulley, 11 car, 12 car guide roller, 13 car guide rail, 17 rail brake device, 21 field, 22 coil, 23 armature, 24 spring, 25, 26 brake arm , 2
7,28 lining, 29 axle, 30 support axle, 31
Shaft pin, 32 bracket, 33 shaft pin, 34 washer, 35 power input coil wire, 36 power output coil wire, 37 spring shaft.

Claims (2)

(57) [Claims] 1. A rail brake device for an elevator in which first and second linings open and close so as to open and close to come into contact with an end face of a guide rail to brake the armature. An electromagnetic magnet provided with a spring for urging the armature in a direction to separate the armature from the field, and an armature provided with the first lining at one end and connected so that the armature moves in conjunction with the movement of the first lining. And a second arm provided with the second lining at one end and connected so that the field moves in conjunction with the movement of the second lining. The suction direction of the field and the armature by the second arm is set to the first direction.
And it is perpendicular to the moving direction of the second lining, the Fi
In a position where the gap between the armature and the armature
A rail brake device for an elevator, wherein the electromagnetic magnet is disposed . 2. A rail brake device for an elevator in which first and second linings open and close so as to open and close and come into contact with an end surface of a guide rail to perform brake braking, wherein an electromagnetic magnet provided with an armature and a field having a coil therein. A spring that urges the armature and the field apart when the brake is braked,
A first arm provided with the first lining at one end thereof and abutted by the spring; and a second arm provided with the second lining at one end and connected to the field and a spring shaft fixed at the other end. An arm, and a direction in which the first and second arms compress the spring and a direction in which the field and the armature are attracted are perpendicular to a direction in which the lining moves , and a gap between the field and the armature is formed.
Place the spring and the electromagnetic magnet at visible positions.
An elevator rail brake device characterized by being placed .