KR102070576B1 - Brake system for driving machine of escalator - Google Patents

Abstract

The present invention relates to a brake system for an escalator driver, comprising: a brake drum (10) axially rotated together with a drive shaft; A brake shoe 20 surrounding the outer circumferential surface of the brake drum and having a shoe body having one end hinged to a driver housing adjacent to the brake drum and an extension extending from the other end of the shoe body to the brake drum outward; A brake pad 30 provided on an inner side of the shoe body facing the brake drum; An elastic support portion 40 elastically connected to the extension to elastically support the extension so that the brake pad of the shoe body is in close contact with and spaced apart from the brake drum according to the elastic shaft rotational flow of the extension; And an extension rod (50) provided with a lifting rod which is in contact with the inner surface of the extension to be axially rotated based on the hinge point of the shoe body. It is characterized in that the drive control means for detecting and stopping the operation of the actuator when the degree of wear of the brake pad exceeds the reference value. Therefore, it is not only time-consuming and expensive to check and replace brake pads, but also to solve the problems of safety accidents caused by the worker's approach to the machine room for inspection and replacement work. The effect of being able to provide reliability is obtained.

Description

Brake system for escalator driver {BRAKE SYSTEM FOR DRIVING MACHINE OF ESCALATOR}

The present invention relates to a brake system for an escalator driver, and more particularly, to a brake system for an escalator driver for automatically detecting the wear state of the brake pad to automatically control the braking of the brake.

In general, an escalator refers to a continuous stair-shaped device that enables automatic ascent to the upper and lower floors by driving a stair moving along the vertical direction by power.

The escalator receives power through a separate driver, and such a driver is provided with a separate brake system for braking the drive shaft (motor shaft). As an example, the brake system for an escalator driver is roughly illustrated with a drive shaft. A brake drum axially rotated, a shoe body surrounding an outer circumferential surface of the brake drum and having one end hinged to an actuator housing adjacent to the brake drum, and an extension extending outwardly from the other end of the shoe body toward the brake drum; A brake shoe, a brake pad provided on an inner surface of the shoe body facing the brake drum, and the brake pad of the shoe body is elastically connected to the extension and the brake pad of the shoe body is connected to the brake drum according to an elastic axial rotational flow of the extension. The kit to be in close contact and spaced apart Is the a for a resilient support urging part and the state abutting the inner surface of one of the extension extending guides are configured to include extended Daeyoo ET provided with a retracting rod is retracting so that the axial rotational flow relative to the hinge point of the shoe body.

In the brake system of the related art according to the above configuration, when the escalator is stopped, the brake shoe and the brake pad press the outer circumferential surface of the brake drum by the spring tension of the elastic support, so that the brake drum is braked. In this case, the wandering rod of the extension flow section pushes the extension outward, and as a result, the brake shoe is hinged so that the brake pad is spaced apart from the brake drum so that the escalator can be operated by releasing the brake and rotating the shaft of the drive shaft. It is organized in such a way.

However, such a brake system of the prior art may cause abrasion of the brake pads after a long time, so that the braking force is greatly reduced, and there is a fear of a safety accident.

Therefore, when a certain time elapses, the worker manually checks the wear state of the brake pad and replaces it with a new brake pad to prepare for a safety accident.

However, in order to replace the brake pads, the escalator must be stopped and the operator should approach the machine room to perform the inspection and replacement, and as a result, it takes much time and money for the inspection and replacement. And there was a problem of a safety accident caused by the worker approaching the machine room for replacement work.

Republic of Korea Patent Publication No. 2009-0020336

The present invention has been made to solve such a problem, the first through-hole penetrating toward the inner brake drum on one side of the shoe body of the brake shoe, the first penetrating toward the inner brake drum on one side of the brake pad 2 a through hole, and provided on one side of the first through hole to provide a control unit for controlling the operation of the actuator in accordance with the wear degree of the brake pad through the wear detection sensor and the wear detection sensor toward the brake drum in the inner side It is an object of the present invention to provide a brake system for an escalator driver for automatically detecting the wear state of a brake pad and for controlling the braking of the brake automatically.

As such, a brake system for an escalator driver according to an embodiment of the present invention includes a brake drum axially rotated together with a drive shaft; A brake shoe surrounding an outer circumferential surface of the brake drum and having a shoe body having one end hinged to a driver housing adjacent to the brake drum and an extension extending from the other end of the shoe body to the brake drum outward; A brake pad provided on an inner side of the shoe body facing the brake drum; An elastic support portion elastically connected to the extension to elastically support the extension such that the brake pad of the shoe body is in close contact with and spaced apart from the brake drum according to an elastic shaft rotational flow of the extension; And an extension rod flow portion provided with a projection rod which is in contact with the inner surface of the extension so that the extension is axially rotated based on the hinge point of the shoe main body. It characterized in that the drive control means for stopping the operation of the actuator when the degree of wear of the brake pad exceeds the reference value is characterized in that it is further provided.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the drive control means, the first through-hole penetrating toward the inner brake drum on one side of the shoe body of the brake shoe; A second through hole penetrating toward an inner brake drum on one side of the brake pad; A wear detection sensor provided at one side of the first through hole toward the brake drum therein; And a control unit controlling the operation of the driver according to the wear level of the brake pad through the signal of the wear detection sensor, wherein the wear detection sensor transmits a distance detection signal through the first and second through holes to the brake drum. It may be to transmit and receive and to control the operation of the driver by grasping the wear degree of the brake pad according to the change in distance between the brake drum and the brake pad.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the first and second penetration holes of the shoe body and the brake pad are placed on the same line, and the wear detection sensor has a transmission / reception direction of a distance sensing signal. The break drum may be in a normal direction.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the brake pad is the second perforated hole is shielded by the debris generated when the brake pad wears due to brake friction with the brake drum. The edge edge portion of the second perforating hole facing the brake drum may be cut to form an inclined surface rounded outward.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the elastic support portion, the parallel plate of the driver housing is disposed in parallel with the extension on the inside of the extension and having a through hole on one side; A support rod penetrating the through hole of the parallel plate and having one end connected to the parallel plate through the long hole of the extension; A support plate on which the other end of the support rod is fixed and spaced apart from the parallel plate at a predetermined interval; And a spring disposed between the parallel plate and the support plate.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, a gap for adjusting the gap between the wandering rod and the inner surface of the extension on the inner surface of the extension that is in contact with the wandering rod of the extension flow section. The adjusting means may be further provided.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the clearance adjusting means, the through-hole formed on one side of the extension line in the same line as the mounting rod; A gap adjusting rod penetrating the through hole; A gap adjusting plate provided at one end of the gap adjusting rod toward the spouting rod and allowing the spouting rod to abut; And a stopper disposed on one side of the extension that is outside of the through hole and connected to the other end of the gap adjusting rod protruding outward through the through hole.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, an accommodation groove for accommodating the gap adjusting plate may be provided on an inner surface of the extension that is an inner edge of the through hole.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the gap adjusting rod is further provided with a handle to axially rotate the gap adjusting rod with a finger at the end protruding to the outside of the through hole. It may be.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the through hole has a thread formed on the inner circumferential surface, and the gap adjusting rod corresponding thereto has a structure in which the thread is formed on the outer circumferential surface and screwed together. It may have been.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the stopper is screwed to the outer peripheral surface of the clearance adjusting rod screwed so that the clearance adjustment rod is stopped while being in close contact with the outer surface of the extension. It may be of a nut structure having a.

In addition, in the brake system for an escalator driver according to an embodiment of the present invention, the brake shoe and the brake pad is provided with a pair to be symmetrical to the opposite side in the radial direction of the brake drum, corresponding to the elastic support, the extension Pairs may be provided so that the shedding rod of the large flow portion, the driving control means and the gap adjusting means are also symmetrical to each other.

The brake system for an escalator driver according to the embodiment of the present invention described above has a first through hole penetrating toward the inner brake drum on one side of the shoe body of the brake shoe and toward the inner brake drum on one side of the brake pad. A control unit for controlling the operation of the driver in accordance with the wear degree of the brake pad through the second through hole and a wear detection sensor provided on one side of the first through hole toward the brake drum and the wear detection sensor to the inner side By providing a brake pad to automatically detect the wear state of the brake pad and to automatically control the braking of the brake pad, it takes a lot of time and money according to the inspection and replacement of the brake pad, as well as the machine room for the inspection and replacement work. It is possible to solve the problems of safety accidents caused by workers' approach. As a result, it is possible to provide efficient operation and reliability of the escalator.

1 is a perspective view showing an external appearance of a driver including a brake system for an escalator driver according to an embodiment of the present invention.
2 is an exploded perspective view showing a brake system for an escalator driver according to an embodiment of the present invention.
3 is a main sectional view showing a state where the brake is applied to the brake drum in the brake system for an escalator driver according to an embodiment of the present invention.
4 is a main sectional view showing a state in which a brake is released in a brake system for an escalator driver according to an embodiment of the present invention.
5 is a schematic flowchart illustrating a wear detection and driving control process of a brake pad in a brake system for an escalator driver according to an exemplary embodiment of the present invention.

1 to 5, a brake system for an escalator driver according to an embodiment of the present invention includes a brake drum 10, a brake shoe 20, a brake pad 30, and an elastic support. 40, an extension belt flow section 50, and drive control means.

The brake drum 10 is integrally connected with the drive shaft 5 to have a cylindrical shape that is axially rotated.

The brake shoe 20 surrounds the outer circumferential surface of the brake drum 10 and has a shoe body 21 having one end hinged to the driver housing 7 adjacent to the brake drum 10, and the other of the shoe body 21. It has a cantilever irregular bending rod structure having an extension 22 extending from the end to the brake drum 10 outward.

The brake pad 30 has a circular rod shape in an arc shape provided on the inner surface of the shoe body 21 facing the brake drum 10.

Here, the brake pad 30 is preferably applied to a material having excellent friction force in contact with the outer peripheral surface of the brake drum 10 to express the maximum friction force.

The elastic support 40 is elastically connected to the extension 22 so that the brake pad 30 of the shoe body 21 is connected to the brake drum 10 according to the elastic axial rotational flow of the extension 22. To elastically support the extension 22 to be in close contact and spaced apart.

The elastic support 40 is arranged in parallel with the extension 22 inside the extension 22 and the parallel plate 9 of the driver housing 7 having a through hole 9a at one side thereof. ), A support rod 41 penetrating through the through hole 9a of the parallel plate 9 and having one end penetrating the long hole 25 of the extension 22 and connected to the parallel plate 9; The other end of the support rod 41 is fixed and includes a support plate 42 which is arranged spaced apart from the parallel plate 9 and a spring 43 disposed between the parallel plate 41 and the support plate 42 It is made to structure.

Here, the long hole 25 of the extension 22 corresponds to the radius of curvature of the brake shoe 20 generated when the shaft is rotated based on the hinge point 23 of the brake shoe 20. It is preferable to have an elliptical structure having a length such that the support rod 41 can be sufficiently flowed to the left and right without disturbing the extension 22 during the rotation of the shaft.

The extension flow unit 50 is a contact rod that is in contact with the inner surface of the extension 22 in the state in which the extension 22 is axially rotated relative to the hinge point 23 of the shoe main body 21 It has a kind of solenoid structure in which 51 is provided.

In addition, the inner surface of the extension 22 that is in contact with the mounting rod 51 of the extension flow section 50 to adjust the gap between the mounting rod 51 and the inner surface of the extension 22. The gap adjusting means is provided.

Here, the gap adjusting means includes a through hole 26 formed at one side of the extension table 22 which is in the same line as the mounting rod 51, and a gap adjusting rod 52 penetrating through the through hole 26. And an extension stand provided at one end of the clearance adjusting rod 52 facing the projection rod 51 and outside of the clearance adjusting plate 53 and the through hole 26 to be in contact with the projection rod 51. The stopper 54 is disposed on one side of the 22 and is connected to the other end of the clearance adjusting rod 52 protruding outward through the through hole 26.

In addition, a receiving groove 27 is provided on the inner surface of the extension plate 22, which is an inner edge of the through hole 26, to accommodate the gap control plate 53.

Thus, by allowing the gap control plate 53 to be accommodated in the receiving groove 27, it is possible to adjust the gap between each other in a state that the gap between the extension 22 and the mounting rod 51 is minimized.

That is, when the gap control plate 53 is a structure protruding inward from the inner surface of the extension 22 without the receiving groove 27 structure, the extension 22 is further opened in the extension flow section 50 As a result, the thickness of the brake pad 30 is prevented from increasing.

In addition, the gap adjusting rod 52 is provided with a handle 55 to axially rotate the gap adjusting rod 52 with a finger at an end protruding to the outside of the through hole 26.

In addition, the through hole 26 has a thread 26a formed on an inner circumferential surface thereof, and the gap adjusting rod 52 corresponding thereto has a structure in which a thread 52a is formed on an outer circumferential surface thereof so as to be screwed together.

In addition, the stopper 54 is screwed to the outer circumferential surface of the clearance adjusting rod 52 to be in close contact with the outer surface of the extension 22 so that the clearance adjustment rod 52 is stopped, the thread 54a. It has a nut structure having a.

The drive control means is provided with a drive control means for detecting the wear state of the brake pad 30 to stop the operation of the driver when the degree of wear of the brake pad 30 exceeds the reference value.

Here, the drive control means, the first through hole 24 which penetrates toward the inner brake drum 10 on one side of the shoe body 21 of the brake shoe 20, and the brake pad 30 The second through hole 31 penetrating toward the inner brake drum 10 on one side and the first through hole communicating with one side of the first through hole 31, that is, the outer circumferential surface of the shoe body 21 ( 31 is provided on one side to control the operation of the driver according to the wear degree of the brake pad 30 through the signal of the wear detection sensor 60 and the wear detection sensor 60 toward the brake drum 10 in the inner side And a control unit 70.

In this way, the wear detection sensor 60 transmits and receives a distance detection signal to the brake drum 10 through the first and second through holes 24 and 31 and the brake drum 10 in the control unit 70. ) And the wear of the brake pad 30 according to the change in distance between the brake pad 30 and the brake pad 30 to control the operation of the driver.

In addition, the first and second through holes 24 and 31 of the shoe body 21 and the brake pad 30 are placed on the same line, and the wear detection sensor 60 transmits and receives a distance sensing signal to the brake. The drum 10 is formed to lie in the normal direction.

In addition, the brake pad 30 is shielded by the burrs generated when the brake pad 30 wears due to brake friction with the brake drum 10. The entire edge of the edge portion of the second through hole 31 facing the brake drum 10 is cut out and rounded outwardly so as to prevent it.

On the other hand, the brake shoe 20 and the brake pad 30 is provided with a pair so as to be symmetrical to the opposite side in the radial direction of the brake drum 10, the elastic support portion 40, the corresponding extended flow portion 50 A pair of the mounting rods 51, the drive control means and the gap adjusting means are also provided to be symmetrical to each other.

In the brake system for an escalator driver according to the exemplary embodiment of the present invention, the brake shoe 20 and the brake pad 30 are brake drums by the tension force of the spring 43 of the elastic support part 40 when the escalator is stopped. When the brake drum 10 is braked by pressing the outer circumferential surface of the 10 and the escalator is operated, the wandering rod 51 of the extension flow section 50 moves the extension 22 outward. As a result, the brake shoe 20 is hinged and rotated so that the brake pad 30 is spaced apart from the brake drum 10 so that the escalator can be operated by releasing the brake and rotating the shaft of the driving shaft 5.

In the process of operating the escalator, the brake pad 30 naturally wears out after a long time, and as a result, the entire lengths of the first and second through holes 24 and 31, that is, the outer circumferential surface of the shoe body 21. The distance from the wear detection sensor 60 installed in the brake drum 10 to the outer circumferential surface of the inner brake drum 10 is shortened, and the distance is continuously shortened by the continuous wear of the brake pad 30. The wear detection sensor 60 sends a detection value to the control unit 70 when the reference value is reached, and the control unit 70 compares and confirms the detection value with the reference value and displays an error code when the reference value is exceeded. The power to the drive shaft 5 is cut off to stop the operation of the escalator.

Then, the brake pad 30 is replaced again, and when the distance from the wear detection sensor 60 to the outer circumferential surface of the inner brake drum 10 again falls within the range of the reference value, power transmission is transmitted to the drive shaft 5 again. This will allow the escalator to resume operation.

As such, the brake system for an escalator driver according to the exemplary embodiment of the present invention automatically detects the wear state of the brake pads through the wear detection sensor to automatically control the braking of the brakes, thereby checking and replacing the brake pads in the related art. Not only is it time-consuming and expensive for the work, but it is also possible to solve the problems of safety accidents caused by the worker's approach to the machine room for inspection and replacement, resulting in efficient operation and reliability of the escalator.

As described above, one embodiment of the present invention has been described, but on the basis of this, those of ordinary skill in the art should add, change, The present invention may be variously modified and changed by deletion or addition, etc., which will also be included within the scope of the present invention.

5: drive shaft 7: drive housing
9: parallel plate 9a: through hole
10: brake drum 20: brake shoes
21: main body 22: extension
23: hinge point 24: first perforator
25: long hole 26: through hole
26a: thread 27: receiving groove
30: brake pad 31: second perforation
32: slope 40: elastic support
41: support rod 42: support plate
43: spring 50: extension flow portion
51: wandering rod 52: clearance adjustment rod
52a: thread 53: clearance control plate
54: stopper 54a: thread
55: handle 60: wear detection sensor
70: control unit

Claims (5)

A brake drum axially rotated together with the drive shaft;
A brake shoe surrounding an outer circumferential surface of the brake drum and having a shoe body having one end hinged to a driver housing adjacent to the brake drum, and an extension extending from the other end of the shoe body to the brake drum outward;
A brake pad provided on an inner side of the shoe body facing the brake drum;
An elastic support that is elastically connected to the extension to elastically support the extension such that the brake pad of the shoe body is in close contact with and spaced apart from the brake drum according to the elastic shaft rotational flow of the extension; And
An extension rod flow portion provided with a mounting rod which is in contact with the inner surface of the extension to be axially rotated with respect to the hinge point of the shoe body;
Including,
The driving control means for detecting the wear state of the brake pad to stop the operation of the driver when the wear degree of the brake pad exceeds the reference value is further provided,
The elastic support unit, the parallel plate of the driver housing disposed in parallel with the extension in the extension and having a through hole on one side; A support rod penetrating the through hole of the parallel plate and having one end penetrating the long hole of the extension plate and connected to the parallel plate; A support plate on which the other end of the support rod is fixed and spaced apart from the parallel plate at a predetermined interval; And a spring disposed between the parallel plate and the support plate.
The drive control means,
A first through hole penetrating toward an inner brake drum on one side of the shoe body of the brake shoe;
A second through hole penetrating toward an inner brake drum on one side of the brake pad;
A wear detection sensor provided at one side of the first through hole toward the brake drum therein; And
A control unit controlling the operation of the driver according to the wear degree of the brake pad through a signal of the wear detection sensor;
Including,
The wear sensor transmits and receives a distance detection signal to the brake drum through the first and second through holes, and the controller detects the wear level of the brake pad according to a change in distance between the brake drum and the brake pad. To control the operation of
The brake pad may have a corner edge portion of the second perforating hole facing the brake drum to prevent the second perforating hole from being shielded by cherries generated when the brake pad is worn due to brake friction with the brake drum. It becomes the inclined surface structure rounded outward,
On the inner surface of the extension that is in contact with the shedding rod of the extension flow portion is further provided with a gap adjusting means for adjusting the gap between the shedding rod and the inner surface of the extension,
The gap adjusting means may include a through hole formed at one side of the extension part that is in the same line as the mounting rod; A gap adjusting rod penetrating the through hole; A gap adjusting plate provided at one end of the gap adjusting rod toward the spouting rod and allowing the spouting rod to abut; And a stopper disposed on one side of the extension that is outside the through hole and connected to the other end of the gap adjusting rod protruding outward through the through hole.
Brake system for the escalator driver, characterized in that the receiving groove is provided on the inner surface of the extension which is the inner edge of the through hole to accommodate the gap control plate. delete The method of claim 1,
The first and second penetration holes of the shoe body and the brake pad are on the same line, and the wear detection sensor of the escalator driver brake is characterized in that the transmission and reception direction of the distance detection signal is in the direction of the brake drum and the normal line. system. delete The method of claim 1,
The brake shoe and the brake pad are provided in a pair so as to be symmetrical to the opposite side in the radial direction of the brake drum, and the elastic support part, the wandering rod of the extended-flow part, and the driving control means and the gap adjusting means are also symmetrical to each other. A brake system for an escalator driver, characterized in that provided in pairs each.

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