CN114873424A - Braking device, driving device and vertical escalator - Google Patents

Abstract

The invention relates to a braking device, a driving device and a vertical staircase, comprising: the flywheel disc is provided with a first sensing part; the first detection switch is arranged on one side of the flywheel disc and matched with the first sensing part; the brake drum is internally provided with a coupling and rubber which are connected with each other, and the coupling is provided with a second sensing part; and the second detection switch is arranged on one side of the brake drum and matched with the second sensing part. Also compare in prior art, this scheme just can judge automatically whether the loss of rubber has taken place to become invalid through setting up the rotation condition that first detection switch and second detection switch monitored flywheel dish and shaft coupling respectively, and the testing process need not human intervention, and the detection mode is swift high-efficient and accurate, the cost of using manpower sparingly, eliminates because of the potential safety hazard that artificial detection error caused.

Description

Braking device, driving device and vertical escalator

Technical Field

The invention relates to the technical field of escalators, in particular to a braking device, a driving device and an escalator.

Background

Nowadays, escalators are widely applied to various buildings, and great convenience is provided for people to go out. In order to reduce the impact on the coupler during starting and stopping, the connection between the upper half coupler and the lower half coupler is buffered by rubber. Under complicated working conditions such as humidity, rubber products are easy to crack, so after long-time use, rubber can lose efficacy, and once rubber loses efficacy, the noise of a driving host machine can be increased, and after long-time impact, a coupler is possible to be fatigue-broken, so that certain safety risk is caused.

Therefore, the rubber of the coupling needs to be inspected regularly, and the conventional inspection method is as follows: firstly, detaching a flywheel cover of a main engine and placing the flywheel cover at a safe position; secondly, opening a brake system of the main machine (when the main machine is in a power-off state, the brake release handle is pulled, and the brake system can be opened); driving the flywheel to enable the driving chain to be in a loose state (when the flywheel is driven downwards, the upper driving chain is in a loose state, otherwise, when the flywheel is driven upwards, the lower driving chain is in a loose state); and fourthly, when one person manually opens the brake system of the main engine, the other person drives the flywheel 1/12 of the main engine (if the upper driving chain is a loose edge, the upper steering wheel moves 1/12 circles, and vice versa), and if the coupler part has collision abnormal sound, the motor needs to be detached, and the condition of the rubber ring is checked.

The traditional manual regular inspection method has high dependence on workers, particularly on workers with abundant maintenance experience, and the whole inspection process is complicated, time-consuming, labor-consuming and low in efficiency. The inevitable meeting of manual inspection has the error, can lead to if not discovering that rubber has all been damaged in the inspection cycle, and when the host computer started, the shaft coupling will receive great impact load, produces abnormal sound and can lead to the shaft coupling fracture even, causes very serious safety risk for the staircase operation.

Disclosure of Invention

Based on this, it is necessary to provide a braking device, a driving device and an escalator, and the problems of complicated manual inspection process, time and labor consumption, low inspection efficiency and potential safety hazard in the prior art are solved.

In one aspect, the present application provides a brake apparatus, comprising:

the flywheel disc is provided with a first sensing part;

the first detection switch is arranged on one side of the flywheel disc and matched with the first sensing part;

the brake drum is internally provided with a coupling and rubber which are connected with each other, and the coupling is provided with a second sensing part; and

and the second detection switch is arranged on one side of the brake drum and is matched with the second sensing part.

After the brake equipment works for a long time, when the rubber inside the coupler is worn and failed, the structure of the coupler changes inevitably, and then the relative position of the flywheel disc and the coupler changes, so that the phase difference is generated between the detection signal of the first sensing part by the first detection switch and the detection signal of the second sensing part by the second detection switch, the phase difference is transmitted to the central control system to generate fault reminding, and the maintenance personnel are prompted to intervene in time to protect the safe operation of the escalator. Also compare in prior art, this scheme just can judge automatically whether the loss of rubber has taken place to become invalid through setting up the rotation condition that first detection switch and second detection switch monitored flywheel dish and shaft coupling respectively, and the testing process need not human intervention, and the detection mode is swift high-efficient and accurate, the cost of using manpower sparingly, eliminates because of the potential safety hazard that artificial detection error caused.

The technical solution of the present application is further described below:

in one embodiment, the first sensing portion and the second sensing portion are each provided as any one of a sensing groove, a sensing hole, a sensing protrusion, and a sensing chip.

In one embodiment, the flywheel disc has a diameter greater than the diameter of the brake drum.

In one embodiment, the braking device further comprises a support, the support is used for being mounted on the driving motor, the support is provided with a first mounting hole, the first detection switch is inserted into the first mounting hole, and a detection part of the first detection switch is used for being opposite to the first sensing part.

In one embodiment, the brake drum is provided with a second mounting hole, the second detection switch is inserted into the second mounting hole, and a detection position of the second detection switch is used for being opposite to the second sensing part.

In one embodiment, the coupler comprises an upper half coupler, a lower half coupler and a connecting bolt, the upper half coupler is fixedly connected with the lower half coupler through the connecting bolt, and the rubber is abutted between the upper half coupler and the lower half coupler.

In one embodiment, the lower coupling half is provided with an assembling convex shaft, the brake drum is concavely provided with an assembling groove, and the assembling convex shaft is rotatably inserted into the assembling groove.

In one embodiment, the outer peripheral wall of the lower coupling half is clearance fitted with the inner peripheral wall of the brake drum.

In another aspect, the present application also provides a driving apparatus, including:

a drive motor;

the speed reducer is connected with a driving shaft of the driving motor;

the braking device is connected with the output shaft of the speed reducer; and

an inertia wheel coupled to the braking device.

In addition, the present application also provides an escalator comprising a drive device as described above.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a driving device according to an embodiment of the present application.

Description of reference numerals:

100. a drive device; 10. a flywheel disc; 11. a first sensing part; 20. a first detection switch; 30. a brake drum; 31. a second sensing part; 32. a second mounting hole; 40. a second detection switch; 50. a support; 51. a first mounting hole; 60. a coupling; 61. an upper half coupling; 62. a lower half coupling; 63. a connecting bolt; 70. rubber.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, the present embodiment provides a driving apparatus 100 that applies a rotational driving force equipped in an escalator for increasing the operation of the escalator. The escalator is usually built between two independent buildings with height difference or between two floors of one building with height difference, and automatic conveying of pedestrians is achieved.

The escalator mainly comprises functional components such as a truss, a driving device 100, a tensioning device, a guide rail, a step chain and the like. The rotary power is transmitted to the step chain, and the step chain drives the steps to rotate in a reciprocating mode along the annular direction in the vertical plane, so that the purpose of continuously conveying pedestrians is achieved.

Illustratively, the driving apparatus 100 in the present embodiment includes: driving motor, speed reducer, braking equipment and flywheel. The speed reducer is connected with a driving shaft of the driving motor. The driving motor is used for outputting high-speed rotating power, and the speed reducer further reduces the rotating speed and increases the driving torque. The braking equipment is connected with an output shaft of the speed reducer; the flywheel is connected with the braking device. The inertia wheel can be driven to rotate by the speed reducer, and the braking equipment is used for braking when the escalator is in emergency, so that potential safety hazards are eliminated.

Continuing to refer to FIG. 1, an embodiment of a braking apparatus is shown, including: flywheel disc 10, first detection switch 20, brake drum 30 and second detection switch 40. The flywheel disc 10 is provided with a first sensing part 11; the first detection switch 20 is disposed on one side of the flywheel panel 10, and the first detection switch 20 is matched with the first sensing portion 11; a coupling 60 and rubber 70 which are connected with each other are arranged in the brake drum 30, and the coupling 60 is provided with a second sensing part 31; the second detection switch 40 is disposed at one side of the brake drum 30, and the second detection switch 40 is engaged with the second sensing part 31.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: after the brake equipment of the scheme works for a long time, when the rubber 70 in the coupler 60 is worn and failed, the structure of the coupler 60 changes inevitably, and then the relative position of the flywheel disc 10 and the coupler 60 changes, so that the phase difference is generated between the detection signal of the first detection switch 20 to the first sensing part 11 and the detection signal of the second detection switch 40 to the second sensing part 31, and the phase difference is transmitted to the central control system to generate fault reminding, so that the maintainers are prompted to intervene in time, and the safe operation of the escalator is protected.

Also compare in prior art, this scheme is through setting up first detection switch 20 and second detection switch 40 and monitoring flywheel dish 10 and shaft coupling 60's rotation condition respectively, just can judge automatically whether rubber 70 has taken place the loss inefficacy, and the testing process need not human intervention, and the detection mode is swift high-efficient and accurate, saves the human cost, eliminates because of the potential safety hazard that artificial detection error caused.

Optionally, in this embodiment, the first detection switch 20 and the second detection switch 40 may be any one or a combination of at least two of, but not limited to, a proximity switch, an infrared sensor, a laser sensor, and the like, and may be specifically selected according to actual needs. For example, in the present embodiment, the first detection switch 20 and the second detection switch 40 both adopt proximity switches, which has low use cost, high detection accuracy and fast response speed.

It is understood that when the flywheel disc 10 and the coupling 60 rotate, the first sensing portion 11 and the second sensing portion 31 respectively generate periodic trigger signals with the correspondingly arranged first detection switch 20 and the second detection switch 40 (the signal interval is determined by the circumferential lengths of the flywheel disc 10 and the brake drum 30). In some embodiments, the first sensing part 11 and the second sensing part 31 are each provided as any one of a sensing groove, a sensing hole, a sensing protrusion, and a sensing chip. For example, in the present embodiment, the first sensing portion 11 and the second sensing portion 31 each employ a sensing groove. Structural changes exist between the sensing groove and the disc surface of the flywheel disc 10 and between the sensing groove and the end surface of the coupler 60, and after the sensing groove and the proximity switch are aligned, detection signals of the proximity switch can be changed, and then the detection signals can be generated. The detection structure and the detection principle are simple, the practicability is strong, and the stability is high.

Furthermore, on the basis of the above-described embodiment, the diameter of the flywheel disc 10 is greater than the diameter of the brake drum 30. Because the diameter of the flywheel disc 10 is greater than that of the brake drum 30, after the rubber 70 in the coupling 60 is damaged and loses efficacy, because the diameter of the flywheel disc 10 is large, the detection signals of the first detection switch 20 and the second detection switch 40 generate a larger phase difference, so that the detection sensitivity can be improved, and potential safety hazards can be eliminated more thoroughly.

In some embodiments, the braking apparatus further includes a bracket 50, the bracket 50 is configured to be mounted on a driving motor, the bracket 50 is provided with a first mounting hole 51, the first detection switch 20 is inserted into the first mounting hole 51, and a detection portion of the first detection switch 20 is configured to be opposite to the first sensing portion 11.

At this time, the first detection switch 20 can be stably installed below the flywheel disk 10 through the bracket 50, the pose of the first detection switch 20 is stable, the alignment precision with the first sensing part 11 is high, and the accuracy of the detection result is improved.

Of course, in other embodiments, the first detection switch 20 and the bracket 50 may be assembled by any one of adhesion, snap connection, magnetic attraction connection, and the like.

In still other embodiments, the brake drum 30 has a second mounting hole 32, the second detection switch 40 is inserted into the second mounting hole 32, and a detection position of the second detection switch 40 is opposite to the second sensing portion 31. Therefore, the second detection switch 40 and the hole wall of the second mounting hole 32 are tightly matched and can be fixed on the brake drum 30, the stability of the mounting pose of the second detection switch 40 is ensured, and the accuracy of the detection result is improved.

In addition, in any of the above embodiments, the coupling 60 includes an upper coupling part 61, a lower coupling part 62, and a connecting bolt 63, the upper coupling part 61 is fixedly connected to the lower coupling part 62 by the connecting bolt 63, and the rubber 70 is abutted between the upper coupling part 61 and the lower coupling part 62. The rubber 70 has elasticity, and when the driving device 100 is started or closed, the rubber 70 can buffer the transient impact, so that the structural safety of the coupler 60 is ensured, and the service life is prolonged.

Of course, in other embodiments, the rubber 70 may be replaced by a spring, an elastic column, a spring sheet, a resin, or other elastic members, and is also within the scope of the present application.

Further, the lower coupling half 62 is provided with an assembly protruding shaft, the brake drum 30 is concavely provided with an assembly groove, and the assembly protruding shaft is rotatably inserted into the assembly groove. Through the assembly convex shaft and the assembly groove in an inserting mode, the connection stability of the lower half coupling 62 and the brake drum 30 can be improved, and meanwhile, the influence on the normal rotation of the lower half coupling 62 is avoided.

More closely, the outer peripheral wall of the lower coupling part 62 is in clearance fit with the inner peripheral wall of the brake drum 30. Thus, frictional resistance and abrasion generated during contact rotation can be avoided.

In addition, the present application also provides an escalator, which includes the driving device 100 according to any one of the above embodiments.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A brake apparatus, comprising:

the flywheel disc is provided with a first sensing part;

the first detection switch is arranged on one side of the flywheel disc and matched with the first sensing part;

the brake drum is internally provided with a coupling and rubber which are connected with each other, and the coupling is provided with a second sensing part; and

and the second detection switch is arranged on one side of the brake drum and is matched with the second sensing part.

2. The brake apparatus according to claim 1, wherein the first sensing portion and the second sensing portion are each provided as any one of a sensing groove, a sensing hole, a sensing protrusion, and a sensing piece.

3. A brake apparatus according to claim 1, wherein the diameter of the flywheel disc is greater than the diameter of the brake drum.

4. The brake equipment according to claim 1, wherein the brake equipment further comprises a support, the support is used for being mounted on a driving motor, the support is provided with a first mounting hole, the first detection switch is inserted into the first mounting hole, and a detection part of the first detection switch is used for being opposite to the first sensing part.

5. The brake apparatus according to claim 1, wherein the brake drum is provided with a second mounting hole, the second detection switch is inserted into the second mounting hole, and a detection portion of the second detection switch is configured to be opposite to the second sensing portion.

6. The brake equipment according to claim 1, wherein the coupler comprises an upper coupling half, a lower coupling half and a connecting bolt, the upper coupling half is fixedly connected with the lower coupling half through the connecting bolt, and the rubber abuts between the upper coupling half and the lower coupling half.

7. The brake apparatus of claim 6, wherein the lower coupling half is provided with an assembly protruding shaft, the brake drum is concavely provided with an assembly groove, and the assembly protruding shaft is rotatably inserted into the assembly groove.

8. A brake arrangement according to claim 7, wherein the outer peripheral wall of the lower coupling part is a clearance fit with the inner peripheral wall of the brake drum.

9. A drive device, comprising:

a drive motor;

the speed reducer is connected with a driving shaft of the driving motor;

the brake apparatus according to any one of claims 1 to 8, which is connected to an output shaft of the reducer; and

an inertia wheel coupled to the braking device.

10. An escalator, characterized in that it comprises a drive according to claim 9.

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