CN117208728A - Additional brake detection device and escalator or moving walk - Google Patents

Abstract

The application relates to an additional brake detection device and an escalator or moving walk, comprising a brake seat; the actuating mechanism is arranged on the brake seat; the brake block is rotatably arranged on the brake seat and connected with the actuating mechanism, and can be clamped with or separated from the ratchet wheel under the drive of the actuating mechanism; the motion detection mechanism is used for being arranged on the side bracket or the brake seat and is used for directly detecting the motion of the brake block; and the moment detection mechanism is used for being arranged on the truss longitudinal beam or the brake seat, and the moment detection mechanism is used for monitoring the maximum stress on the truss longitudinal beam or the brake seat. Therefore, whether the brake block performs normal action or not can be accurately monitored, potential safety hazards caused by the fact that the brake block cannot clamp a column ratchet wheel to stop the escalator or the moving walk are eliminated, meanwhile, the problem that abnormal stopping is caused by the fact that the brake block cannot be normally loosened with the clamped ratchet wheel is solved, and the operation reliability and safety of the escalator or the moving walk are greatly improved.

Description

Additional brake detection device and escalator or moving walk

Technical Field

The application relates to the technical field of elevator safety braking, in particular to an additional brake detection device and an escalator or a moving walk.

Background

An escalator or a moving walk is an automatic passenger carrying device commonly used in places such as business, hotels, zoos, amusement parks and the like at present, and an additional brake is usually arranged for improving the operation safety of the escalator or the moving walk. The additional brake is a safety device commonly used in various models, and is mainly used for quick braking in emergency situations, thereby protecting equipment and personnel. The structure of the additional brake comprises an electromagnet, a transmission mechanism, a friction disc and other components, and is linked with the running equipment to play a role of braking.

The transmission mechanism is generally composed of components such as a connecting rod, a rotating plate, a ratchet shaft and the like, the power of the electromagnet is transmitted to the brake block through the transmission mechanism to control the brake block to be clamped into the ratchet to achieve the braking purpose or separated from the ratchet to release braking, then the transmission mechanism has a large number of components and a complex installation structure, if any component is damaged in actual use, the transmission mechanism can not transmit the power of the electromagnet to the brake block any more when the electromagnet still works normally, so that the brake block can not act normally, and at the moment, the brake block can possibly be in an electrified state (the brake block is separated from the ratchet) due to the action of gravity, the action of clamping the ratchet to stop the escalator can not be achieved, and at the moment, the escalator can still operate normally, so that great potential safety hazards exist; on the other hand, the brake block and the brake bracket are blocked to be in a power-losing state (the brake block is blocked into the ratchet wheel state), and the brake block is blocked into the ratchet wheel, so that the escalator can be stopped abnormally.

Disclosure of Invention

Based on the above, it is necessary to provide an additional brake detection device and an escalator or a moving walk against the problem of serious safety hazards caused by abnormal elevator stopping.

In one aspect, the present application provides an additional brake detection apparatus comprising:

a brake seat;

the actuating mechanism is arranged on the brake seat;

the brake block is rotatably arranged on the brake seat and is in driving connection with the Shi Dongji mechanism, and the brake block can be clamped with or separated from the ratchet wheel under the driving of the actuating mechanism;

the motion detection mechanism is used for being arranged on the side bracket or the brake seat and is used for directly detecting the motion of the brake block; the method comprises the steps of,

the moment detection mechanism is used for being arranged on the truss longitudinal beam or the brake seat and is used for monitoring the maximum stress on the truss longitudinal beam or the brake seat.

The additional brake detection device is applied to the escalator or the moving pavement, when an emergency occurs in the operation process, the additional brake detection device can timely and effectively stop the escalator or the moving pavement, specifically, the Shi Dongji mechanism drives the brake block to rotate, and the brake block is clamped with the ratchet wheel to form a stopping effect on the ratchet wheel, so that the escalator or the moving pavement can be timely stopped to continue to operate. However, when the brake block cannot be normally driven to operate due to faults or damages of the actuating mechanism, the action detection mechanism arranged on the side support or the brake seat can directly monitor that the brake block does not normally act, meanwhile, the moment detection mechanism can synchronously monitor acting force (the ratchet wheel can exert reaction force on the brake block due to the clamping of the brake block and the ratchet wheel so as to exert the acting force on the side support loaded with the brake block) on the truss girder or the brake seat, and judge the magnitude relation between the monitoring value and the preset value, so that whether the brake block normally acts or not can be accurately monitored, potential safety hazards caused by the fact that the brake block cannot clamp a column ratchet wheel to stop an escalator or a moving walk are eliminated, and meanwhile, the problem that abnormal stop is caused by the fact that the brake block and the clamping ratchet wheel cannot be normally released is solved, and the operation reliability and safety of the escalator or the moving walk are greatly improved.

The technical scheme of the application is further described as follows:

in one embodiment, the motion detection mechanism includes a motion detection bracket and a motion detection sensor, the motion detection bracket is configured to be mounted on the side bracket or the brake seat, the motion detection sensor is disposed on the motion detection bracket, and a detection portion of the motion detection sensor is opposite to the brake block.

In one embodiment, the motion detection support is provided with a rotating shaft, the rotating shaft is connected with a swing arm, and the motion detection sensor is arranged at one end of the swing arm away from the rotating shaft.

In one embodiment, a first vibration isolation component is connected between the rotating shaft and the swing arm; and/or a second vibration isolation part is connected between the swing arm and the motion detection sensor.

In one embodiment, the torque detecting mechanism includes a torque detecting bracket and a torque detecting sensor, the side bracket or the brake seat is provided with a detecting point, the torque detecting bracket is mounted at the side bracket or the brake seat, the torque detecting sensor is mounted on the torque detecting bracket, and the torque detecting sensor is used for detecting the force change of the brake seat when the brake block brakes.

In one of the embodiments, the torque detection sensor has an action range with a braking distance of less than two-thirds of the steps of the escalator or moving walkway incline and less than 5m.

In one embodiment, the actuating mechanism comprises an electromagnet and a transmission mechanism, wherein the electromagnet is provided with a push rod capable of moving in a telescopic mode, the push rod is connected with the transmission mechanism, and the transmission mechanism is connected with the brake block in a rotating mode.

In one embodiment, the transmission mechanism comprises a connecting piece, a connecting rod, a rotating plate and a pawl shaft, one end of the connecting piece is connected with the push rod, the other end of the connecting piece is rotationally connected with one end of the connecting rod, the other end of the connecting rod is rotationally connected with the rotating plate, the rotating plate is connected with the pawl shaft, and the pawl shaft is fixedly connected with the brake block.

In one embodiment, the additional brake detecting device further includes a position detecting switch mounted to one side of the electromagnet and configured to detect a position of the push rod.

In another aspect, the application also provides an escalator or moving walk comprising an additional brake detection device as described above.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an additional brake detecting device according to an embodiment of the application.

Fig. 2 is a schematic structural view of the additional brake detecting device shown in fig. 1, in which a brake block extends to be engaged with a ratchet.

Fig. 3 is a schematic structural diagram of a torque detection mechanism according to an embodiment.

Reference numerals illustrate:

10. a brake seat; 20. a brake block; 30. an action detecting mechanism; 31. a motion detection bracket; 32. a motion detection sensor; 40. a torque detection mechanism; 41. a moment detection bracket; 42. a torque detection sensor; 50. an electromagnet; 51. a push rod; 60. a connecting piece; 70. a connecting rod; 80. and rotating the plate.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

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

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If 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, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 to 3, an additional brake detecting device according to an embodiment of the present application includes a brake base 10, an actuating mechanism, a brake pad 20, an actuating detecting mechanism 30, and a torque detecting mechanism 40, wherein the actuating mechanism is mounted on the brake base 10; the brake block 20 is rotatably arranged on the brake seat 10 and is in driving connection with the actuating mechanism, and the brake block 20 can be clamped with or separated from the ratchet wheel under the driving of the actuating mechanism; the motion detection mechanism 30 is used for being arranged on a side bracket or a brake seat, and the motion detection mechanism 30 is used for directly detecting the motion of the brake block 20; the moment detecting mechanism 40 is used for being arranged on the truss girder or the brake seat, and the moment detecting mechanism 40 is used for monitoring the maximum stress on the truss girder or the brake seat.

In summary, implementing the technical scheme of the embodiment has the following beneficial effects: the additional brake detection device of the scheme is applied to the escalator or the moving pavement, when an emergency situation occurs in the operation process, the additional brake detection device can timely and effectively stop the escalator or the moving pavement, specifically, the Shi Dongji mechanism drives the brake block 20 to rotate, and the brake block 20 is clamped with the ratchet wheel to form a stopping effect on the ratchet wheel, so that the escalator or the moving pavement can be timely stopped to continue to operate. However, when the brake block 20 cannot be normally driven to operate due to failure or damage of the actuating mechanism, the motion detection mechanism 30 installed on the side bracket or the brake seat can directly monitor that the brake block 20 does not normally operate, meanwhile, the moment detection mechanism 40 can synchronously monitor the acting force applied to the truss girder or the brake seat (the ratchet wheel can apply a reaction force to the brake block 20 due to the clamping of the brake block 20 and the ratchet wheel, and then acts on the brake seat loaded with the brake block 20), and judge the magnitude relation between the monitoring value and the preset value, so that whether the brake block 20 normally operates or not can be accurately monitored, potential safety hazards caused by stopping the escalator or the moving walk due to the fact that the brake block 20 cannot clamp the column ratchet wheel are eliminated, meanwhile, the problem that the escalator or the moving walk is abnormally stopped due to the fact that the brake block 20 and the clamping ratchet wheel cannot be normally released is solved, and the operation reliability and safety of the escalator or the moving walk are greatly improved.

That is, by directly providing the brake pad 20 with the dedicated operation detection mechanism 30 and the torque detection mechanism 40, even when the actuation mechanism cannot apply the driving force to the brake pad 20 due to a failure or damage, the operation detection mechanism 30 and the torque detection mechanism 40 can accurately detect whether the brake pad 20 is operating normally.

Optionally, the side bracket in the application specifically may refer to any one or a combination of at least two of a support truss, a brake bracket and the like, and the side bracket is specifically selected flexibly according to actual needs.

With continued reference to fig. 1, the motion detection mechanism 30 specifically includes a motion detection bracket 31 and a motion detection sensor 32, where the motion detection bracket 31 is configured to be mounted on a side bracket or a brake seat, the motion detection sensor 32 is disposed on the motion detection bracket 31, and a detection portion of the motion detection sensor 32 is opposite to the brake pad 20. The motion detection bracket 31 is assembled and fixed with the motion detection sensor 32 to the side bracket or the brake pad so that the motion detection sensor 32 can be directly used to detect the motion of the brake pad 20.

For example, when the actuating mechanism works normally and the motion detection sensor 32 detects that the brake pad 20 rotates at the same time, so that the locking with the ratchet wheel is completed, the actuating mechanism and the brake pad 20 are well driven; when the actuating mechanism works normally, but the action detection sensor 32 fails to detect that the brake block 20 rotates, the fault or damage of the component parts in the actuating mechanism or the connection structure between the actuating mechanism and the brake block 20 is indicated, and at this time, the action detection sensor 32 can timely feed back a signal to the background or an alarm prompt device to remind a worker to intervene in time to remove the fault.

Further, on the basis of the above embodiment, the motion detection bracket 31 is provided with a rotating shaft, the rotating shaft is connected with a swing arm, and the motion detection sensor 32 is mounted at one end of the swing arm away from the rotating shaft.

The swing arm is rotatably connected with the motion detection bracket 31 through the rotating shaft, so that the swing arm can rotate by taking the axial lead of the rotating shaft as a rotation center, and the swing arm drives the motion detection sensor 32 to rotate relative to the brake block 20, so that the relative positions of the motion detection sensor 32 and the brake block 20 can be adjusted, the motion detection sensor 32 can adapt to the brake blocks 20 with different shapes and sizes, and the accurate alignment of the motion detection sensor 32 and the brake block 20 is ensured. Or, the swing arm is rotated to drive the motion detection sensor 32 to synchronously rotate, so that the motion detection sensor 32 can respectively detect different parts of the brake block 20, and the interference of accidental vibration and other factors on the detection result is eliminated through multipoint sampling detection.

It can be understood that the swing arm may be manually rotated by a worker, or may be connected to a linear power output device such as an air cylinder, or a rotating shaft is connected to a rotating power output device such as a motor, so as to automatically drive the swing arm and the motion detection sensor 32 to rotate, and the specific manner is not specifically limited herein, and the mode may be flexibly selected according to actual needs.

Alternatively, the motion detection sensor 32 may be a proximity switch, and when the brake pad 20 is disengaged from the ratchet, the brake pad 20 approaches the proximity switch, thereby triggering the proximity switch to actuate, indicating the actuation state of the brake pad 20. Alternatively, the motion detection sensor 32 may be a travel switch assembly, and a lever structure is mounted on the brake block 20, and when the brake block 20 is disengaged from the ratchet, the brake block 20 rotates upward, and the lever contacts the travel switch above the brake block 20, so as to trigger the travel switch assembly to act, and indicate the action state of the brake block 20.

In addition, on the basis of any one of the embodiments, a first vibration isolation component is connected between the rotating shaft and the swing arm; and/or a second vibration isolation member is connected between the swing arm and the motion detection sensor 32.

For example, the first vibration isolation member and/or the second vibration isolation member may be any one or a combination of at least two of vibration isolation springs, vibration isolation rubbers, vibration isolation bolsters, and the like. By providing the first vibration isolation member and/or the second vibration isolation member, the vibration transmitted to the motion detection sensor 32 in the external environment can be attenuated and eliminated, and the motion detection sensor 32 can be prevented from affecting the detection accuracy due to chattering.

With continued reference to fig. 3, in other embodiments, the torque detecting mechanism 40 includes a torque detecting bracket 41 and a torque detecting sensor 42, a detecting point is disposed on the side bracket or the brake seat, the torque detecting bracket 41 is disposed on the side bracket or the brake seat, the torque detecting sensor 42 is disposed on the torque detecting bracket 41, and the torque detecting sensor 42 is used for detecting a force change of the brake seat when the brake pad brakes.

Before the ladder is installed, the braking moment of the additional brake detecting device is set by adjusting the compression amount of the disc spring, and when the additional brake detecting device acts, the brake block 20 receives upward force (the ratio of the braking moment of the additional brake detecting device to the average diameter of the ratchet) from the ratchet, so that great stress is generated on the detection point on the side bracket or the brake seat. The moment detecting bracket 41 is installed on the side bracket or the brake seat, and then the moment detecting sensor 42 is installed on the moment detecting bracket 41 to monitor the force or the stress of the brake seat in real time, thereby feeding back the braking moment of the additional brake detecting device.

Further, the control system is provided with an action range of the moment detection sensor 42, when the actual measurement value is smaller than the minimum value of the action range, the braking moment is insufficient, and when the escalator breaks a chain or reverses, the additional brake detection device singly acts, the escalator cannot be effectively stopped at the moment, and the additional brake detection device fails, so that a fault code can be output under the condition, a worker is prompted to adjust the moment, manual periodic inspection is not needed, maintenance efficiency of the additional brake detection device is improved, and maintenance cost is reduced; when the measured value is larger than the maximum value of the action range, the braking torque of the additional brake detection device is far larger than the set braking torque, and the braking deceleration can exceed 1m/s ² On the one hand, the national standard is not met, and on the other hand, there may be a risk of passengers falling down.

In addition, if the braking torque of the additional brake detection device is too large, higher requirements are put on the supporting truss or other peripheral components, and the additional brake detection device is subjected to abnormal stress at the moment, so that fault codes are required to be output to prompt a worker to adjust the torque for safety.

In practice, the braking distance of the movement range is preferably less than the braking distance of two-thirds steps of the inclined part of the escalator or moving walkway and less than 5m.

With continued reference to fig. 1 and 2, in addition, the actuating mechanism includes an electromagnet 50 and a transmission mechanism, where the electromagnet 50 has a push rod 51 that can move telescopically, and the push rod 51 is connected to the transmission mechanism, and the transmission mechanism is connected to the brake pad 20 in a rotating manner. The electromagnet 50 is electrically connected with a power supply part of the control system, and the power supply part supplies electric energy to the electromagnet 50 and controls the on-off of current.

When the electromagnet 50 is electrified, the push rod 51 in the electromagnet 50 extends upwards, the push rod 51 pulls the transmission mechanism to rotate towards the first direction, and the brake block 20 is driven by the transmission mechanism to rotate downwards so as to be separated from the ratchet wheel; conversely, when the electromagnet 50 is powered off, the push rod 51 moves downwards to recover and simultaneously pushes the transmission mechanism to rotate towards the second direction, and at the moment, the brake block 20 rotates upwards to clamp the column ratchet wheel, so that the escalator is stopped. The electromagnet 50 is used as a power source to transmit power to the brake block 20 through the transmission mechanism, the response speed is high, the transmission path is short, the effect of stopping the escalator in time and efficiently can be achieved, and the working reliability of the additional brake detection device is improved.

In the above embodiment, the specific transmission mechanism includes the connecting member 60, the connecting rod 70, the rotating plate 80, and the detent shaft, one end of the connecting member 60 is connected with the push rod 51, the other end is rotationally connected with one end of the connecting rod 70, the other end of the connecting rod 70 is rotationally connected with the rotating plate 80, the rotating plate 80 is connected with the detent shaft, and the detent shaft is fixedly connected with the brake block 20.

The linear power of the push rod 51 is transmitted to the rotating plate 80 through the connecting rod 70, namely, the connecting rod 70 drives the rotating plate 80 to rotate, the rotating plate 80 can drive the brake block 20 to synchronously rotate through the pawl shaft, the locking or the separation with a ratchet wheel is realized, the structure of the transmission mechanism is simple, and the action switching is rapid and reliable.

Further, the additional brake detecting means further includes a position detecting switch installed at one side of the electromagnet 50 and detecting the position of the push rod 51. The position detection switch can accurately detect whether the push rod 51 normally stretches out or not, so that timely feedback is achieved when faults occur, and staff is reminded of intervention.

In addition to the above, the present application also provides an escalator or a moving walk, which comprises the additional brake detecting device according to any one of the above embodiments.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. An additional brake detecting apparatus, comprising:

a brake seat;

the actuating mechanism is arranged on the brake seat;

the brake block is rotatably arranged on the brake seat and is in driving connection with the Shi Dongji mechanism, and the brake block can be clamped with or separated from the ratchet wheel under the driving of the actuating mechanism;

the motion detection mechanism is used for being arranged on the side bracket or the brake seat and is used for directly detecting the motion of the brake block; the method comprises the steps of,

the moment detection mechanism is used for being arranged on the truss longitudinal beam or the brake seat and is used for monitoring the maximum stress on the truss longitudinal beam or the brake seat.

2. An additional brake detecting apparatus according to claim 1, wherein the motion detecting mechanism includes a motion detecting bracket for being mounted on the side bracket or the brake seat, and a motion detecting sensor provided on the motion detecting bracket with a detection portion of the motion detecting sensor facing the brake pad.

3. The additional brake detecting apparatus according to claim 2, wherein the motion detecting bracket is provided with a rotation shaft, the rotation shaft is connected with a swing arm, and the motion detecting sensor is installed at one end of the swing arm away from the rotation shaft.

4. The additional brake detecting apparatus according to claim 3, wherein a first vibration isolating member is connected between the rotation shaft and the swing arm; and/or a second vibration isolation part is connected between the swing arm and the motion detection sensor.

5. An additional brake sensing device according to claim 1, wherein the torque sensing mechanism comprises a torque sensing bracket and a torque sensing sensor, the side bracket or the brake pad is provided with a sensing point, the torque sensing bracket is mounted on the side bracket or the brake pad, the torque sensing sensor is mounted on the torque sensing bracket, and the torque sensing sensor is used for sensing a force change of the brake pad during braking of the brake pad.

6. An additional brake detecting apparatus according to claim 5, wherein the moment detecting sensor has an action range of which a braking distance is less than a braking distance of two-thirds steps of an inclined portion of an escalator or a moving walkway and less than 5m.

7. A brake detection apparatus according to any one of claims 1 to 6, wherein the actuation mechanism comprises an electromagnet and a transmission mechanism, the electromagnet having a telescopically movable push rod, the push rod being connected to the transmission mechanism, the transmission mechanism being rotatably connected to the brake pad.

8. An additional brake detecting apparatus according to claim 7, wherein the transmission mechanism includes a connecting member, a link, a rotating plate, and a detent shaft, one end of the connecting member is connected to the push rod, the other end is rotatably connected to one end of the link, the other end of the link is rotatably connected to the rotating plate, the rotating plate is connected to the detent shaft, and the detent shaft is fixedly connected to the brake block.

9. An additional brake detecting apparatus according to claim 8, further comprising a position detecting switch mounted to one side of the electromagnet and configured to detect a position of the push rod.

10. An escalator or moving walkway comprising an additional brake detection device according to any one of claims 1 to 9.