JPH11263575A - Brake test method of passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the brake test method of a passenger conveyor by which a stop distance corresponding to test items can be easily measured without requiring troublesome processes at brake test. SOLUTION: At the brake test of a passenger conveyor in which a conveyor belt endlessly connecting together many treads and circulatingly moved is arranged on a main frame 1, and the conveyor belt is driven by a driving machine 6 having a motor 8 and a braking machine 9, a flywheel 16 having an equivalent quantity corresponding to test items is temporarily provided on the output shaft 13 of the motor 8 and operated, and a stop distance at operating the braking machine 9 is measured. Hereby, without loading a braking load on the tread of the passenger conveyor, the stop distance at operating the braking machine 9 equivalent to the condition of being applied with a braking load. Consequently, without requiring troublesome processes, the brake test of the passenger conveyor can be carried out, and working efficiency of the brake test is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking test method for a passenger conveyor in which a large number of treads provided on a main frame are connected endlessly and circulated.

[0002]

2. Description of the Related Art FIGS. 9 and 10 show a passenger conveyor composed of an escalator. FIG. 9 is a longitudinal sectional view conceptually showing a longitudinal end of the passenger conveyor, and FIG.
FIG. 4 is an enlarged cross-sectional view taken along line A. In the figure, 1 is a main frame of a passenger conveyor, 2 is a machine room provided at a longitudinal end of the main frame 1, and 3 is a main frame 1 having a large number of treads 4 connected endlessly.
The reference numeral 5 designates a chain gear provided in the machine room 2 and circulated around the transfer belt 3.

[0003] Reference numeral 6 denotes a winding transmission mechanism 7 provided in the machine room 2.
And a driving machine for driving the transport belt 3 by the chain gear 5, a motor 8, a brake 9 for braking the output shaft of the motor 8, a speed reducer 10 connected to the output shaft of the motor 8, and an output shaft of the speed reducer 10. The drive wheel 11 of the fixed winding transmission mechanism 7 and the electric motor 8
Flywheel 12 fastened to the end of the output shaft on the side opposite to the brake 9
Is provided.

[0004] In the passenger conveyor configured as described above, conventionally, a braking test of the passenger conveyor was performed as described below. That is, the brake 9 of the driving machine 6
As an operation test, the stopping distance was measured during the ascending operation and during the descending operation when the load of the transport band 3 was not loaded, and during the ascending operation and during the descending operation when a predetermined load was applied to the transport band 3 Is performed at each of the stop distances. The flywheel 12 is provided to perform a braking operation at a gentle deceleration so that the passenger on the tread plate 4 does not fall when the passenger conveyor is stopped in an emergency.

[0005]

According to the above-described conventional method for testing the braking of a passenger conveyor, the conventional method of applying a braking force to the conveyor belt 3, that is, the operation of the brake 9 corresponding to the rated load of the passenger conveyor. In the stop distance measurement, a load of about 120 kg is placed on each of the treads 4. Therefore, in order to place a predetermined load on an escalator having a floor height of 4 meters and a tread width of 1.2 meters, for example, a total of 2 tons of weight or the like must be placed, which requires a great deal of labor and time. Is required.

The present invention has been made to solve such a problem, and can measure a stopping distance corresponding to a driving direction and a load state of a transport band when a brake is operated without requiring complicated steps. The purpose is to obtain a method for testing the braking of passenger conveyors.

[0007]

SUMMARY OF THE INVENTION In a method for testing the braking of a passenger conveyor according to the present invention, a transport belt in which a large number of treads are connected endlessly, arranged on a main frame and operated in a circulating manner, an electric motor and a control system. At the time of a braking test of a passenger conveyor provided with a motive and a driving device mounted on a main frame and driving a transport belt, an equivalent amount of flywheel corresponding to the test specifications is temporarily provided on the output shaft of the electric motor.

Further, in the method for testing the braking of a passenger conveyor according to the present invention, a plurality of flywheels are temporarily arranged in a state of being overlapped with each other to form an equivalent amount corresponding to the test parameters.

In the braking test method for a passenger conveyor according to the present invention, a flywheel is temporarily mounted on an output shaft of a motor through a centering portion.

Further, in the method for testing the braking of a passenger conveyor according to the present invention, flywheels are temporarily disposed in a superposed state through opposing surface alignment portions provided on opposing surfaces.

In the braking test method for a passenger conveyor according to the present invention, the driving machine is a vertical type in which the output shaft of the electric motor is arranged in a vertical direction, and the flywheel is provided on the opposing surfaces provided on the mutually opposing surfaces. Arranged in a superposed state via the centering part, temporarily installed in a horizontal position on the output shaft, and protruded downward from the lower surface of the upper flywheel to form a gap in the through hole of the lower flywheel and the output shaft member of the electric motor. And an engagement pin is disposed to be inserted through to prevent horizontal displacement between the flywheels.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 5 are views showing an example of an embodiment of the present invention. FIG. 1 is a view corresponding to FIG. 10 described above, and FIG. 2 is an enlarged sectional view of a portion B in FIG. , FIG. 3 is an enlarged sectional view of a part B of FIG. 1 showing a temporary state of the flywheel, FIG. 4 is an enlarged sectional view of a part B of FIG. 1 showing another temporary state of the flywheel, and FIG. 5 is a braking speed in a braking test of a passenger conveyor. 6 is a graph showing the relationship between time and time. Except for FIGS. 1 to 5, a passenger conveyor is configured in the same manner as in FIGS. 9 and 10 described above. In the figure, 1
Reference numeral 2 denotes a main frame of the passenger conveyor, and reference numeral 2 denotes a machine room provided at a longitudinal end of the main frame 1.

Reference numeral 6 denotes a drive unit provided in the machine room 2 for driving the transport belt 3. The drive unit 6 is a motor 8, a brake 9 for braking an output shaft of the motor 8, and a speed reducer 1 connected to an output shaft 13 of the motor 8.
0, a drive wheel 11 of the winding transmission mechanism 7 fixed to the output shaft of the speed reducer 10 is provided. Reference numeral 14 denotes a sleeve with a flange that is shrink-fitted and fixed to the end of the output shaft 13 of the electric motor 8 on the side opposite to the brake 9.

Reference numeral 15 denotes a mounting bolt, which is provided at a position opposite to the side surface of the flange, one end of which is fixed to the flange surface of the sleeve 14, and whose length is arranged along the outer surface of the sleeve 14. Reference numeral 16 denotes a disk-shaped part, and the center is a sleeve 14.
The flywheel is formed with a centering portion 17 fitted with a small gap to the outer diameter of the output shaft.
A gap is formed in the space, and they are fitted and temporarily set during a braking test.
18 is screwed into the tip of the mounting bolt 15 and the flywheel 16
To the sleeve 14.

In the passenger conveyor constructed as described above, during normal operation, as shown in FIG.
, Three flywheels 16 are arranged on the output shaft 13 of the electric motor 8 and fastened by the mounting bolts 15 and the nuts 18. This allows for an emergency stop of the passenger conveyor,
A braking operation with a gentle deceleration such that the passenger on the tread plate 4 does not fall can be obtained.

At the time of the braking test of the passenger conveyor, an equivalent amount of the flywheel 16 corresponding to the test specifications is provided by the electric motor 8.
Is temporarily provided on the output shaft 13. Thereby, the number of flywheels 16 is reduced as shown in FIG. 3 to shorten the stopping distance when braking the passenger conveyor, and as shown in FIG. 4, the number of flywheels 16 is added to increase the stopping distance when braking the passenger conveyor. be able to.

In the following, the amount of the flywheel 16 for determining the state in which a predetermined load is applied to the conveyor belt 3, that is, the stopping distance when the brake 9 is operated with respect to the braking load due to the rated load of the passenger conveyor, is obtained. That is, stop by brake 9 operates at no load passengers conveyor distance S _N, the stopping distance S _B by brake 9 operates the braking load of the passenger conveyor is represented by the result following formula as shown in Figure 5 .

[0018]

(Equation 1) Here, v ₀ : initial speed (for example, v ₀ = 30 m / min) t ₀ : dead time of braking (for example, t ₀ = 0.2 sec) t ₁ : braking time (at no load) (t ₁ = 0.95 sec from the following calculation) )

[0019]

(Equation 2) t _'1U: braking time (at the time of braking load UP) (t ₁ = 0.80sec from the following calculation)

[0020]

(Equation 3) t _'1D: braking time (at the time of braking load DN) (t ₁ = 1.30sec from the following calculation)

[0021]

(Equation 4) GD ² _E: passenger conveyor GD ² (e.g. _{^{GD 2 E = 5kg.m 2) GD}} 2 P: the braking load GD ² (e.g. _{^{GD 2 P = 0.2kg.m 2) T}} B: braking torque (for example T _B (Torque held by braking) T _L : Loss torque (eg, T _L = 1 kg.m) (Torque consumed during operation) T _P : Braking load torque (eg, T _P = 5 kg.m) ( torque generated in the passenger conveyor by braking load. Incidentally, the braking load torque T _P only affect passenger conveyor which is arranged obliquely, it is T _P = 0 does not act in the passenger co Nbeya which are horizontally arranged.) r ₀ : Braking shaft rotation speed at initial speed (v ₀ ) (for example, r ₀ = 1500 rpm) Here, the above GD ² , torque and rotation speed are values converted into numerical values for eight motor axes.

It should be noted that the above-described (Equation 1-1) and (Equation 1-
In (2), the stopping distance of the passenger conveyor changes due to the loading of the braking load because the braking time t ₁ of the passenger conveyor changes to t ′ _1U and t ′ _1D .
That is, in order to measure the stopping distance of the passenger conveyor at the time of the braking load in the no-load state, the above-mentioned (Equation 1-
3) The number of flywheels 16 is adjusted according to (Equation 1-4) and (Equation 1-5), and GD ² of the passenger conveyor is raised from GD ² _E when driving.

(Equation 5) And during descent operation

(Equation 6) Thus, the required measurement can be performed.

For example, considering a passenger conveyor to which the above values are applied for GD ² , torque and rotation speed, the braking times t ₁ , t ′ _1U and t ′ for the ascent and descent at no load and at the time of braking load are considered. _1D is as follows.

[0024]

(Equation 7)

[0025] Then, the braking time of stopping distance test corresponding passenger conveyor during braking load in the unloaded state t _'1Ut, t' respectively and _1DT, the GD ² passenger conveyor when increasing operation

(Equation 8) And during descent operation

(Equation 9) When the (Equation 2-1) is calculated by adding and subtracting, the following values are obtained.

[0026]

(Equation 10) From the above, the braking time of the passenger conveyor corresponding to the braking load and the braking load is as follows:

[0027]

[Equation 11] Further, according to (Equation 1-2), when a braking load is applied, the stopping distance of the passenger conveyor corresponding to the braking load becomes equal. From this, it can be seen that by changing the GD ² of the passenger conveyor by adjusting the amount of the flywheel 16 in the no-load state, the stopping distance of the passenger conveyor corresponding to the time when the braking load is applied can be measured. Further, GD ² , GD ² _U and GD ² _D for adjusting the amount of the flywheel 16 for the passenger conveyor for which the braking time has been obtained are calculated as follows.

[0028]

(Equation 12)

For example, if the passenger conveyor is provided with an iron flywheel 16 having an outer diameter of 400 mm and an inner diameter of 70 mm, the thickness of the adjustable flywheel 16 is T _U at the time of the ascending operation and T _D at the time of the descending operation.

[0030]

(Equation 13) Similarly, the mass of the flywheel 16 is M _U during ascending operation and M _D during descending operation,

[0031]

[Equation 14] Becomes Therefore, only 10 kg, about 20 kg of flywheel 16
Is provided, it is possible to measure a stopping distance when the brake 9 is operated, which is equivalent to a state in which a braking load is applied. As a result, a load of about 120 kg is placed on each of the treads 4 as a braking load, and the trouble of measuring the stopping distance when the brake 9 is operated can be omitted.

In this way, at the time of the braking test of the passenger conveyor, the flywheel 16 of an equivalent amount corresponding to the test specifications is temporarily provided on the output shaft 13 of the electric motor 8. Then, the non-loaded passenger conveyor is operated, and a stopping distance corresponding to a braking load when the brake 9 is operated is measured. Therefore, the braking test of the passenger conveyor can be easily performed without requiring a complicated operation, and the work efficiency of the braking test can be improved.

Further, a plurality of flywheels 16 are arranged in a state of being overlapped with each other and are temporarily provided on a sleeve 14 provided on the output shaft 13. For this reason, the number of the flywheels 16 can be adjusted to easily cope with different test specifications at the time of a passenger conveyor or a braking test having different specifications. Therefore, given GD ²
By preparing a plurality of flywheels 16 for different tests, the flywheels 16 can be used for different test specifications and the like, and work efficiency of the braking test can be improved.

Further, since the centering portion 17 is formed on the flywheel 16, the plurality of flywheels 16 can be easily centered on the sleeve 14 provided on the output shaft 13. For this reason, when the number of the flywheels 16 is adjusted,
Can be maintained in balance, no special adjustment is required, and the working efficiency of the braking test can be improved.

Embodiment 2 FIG. 6 is a view showing an example of another embodiment of the present invention, and is a view corresponding to FIG. 2 described above.
Except for FIG. 6, a passenger conveyor is configured similarly to the above-described embodiment of FIGS. In the figure, FIG.
The same reference numerals as those in FIG. 5 to FIG. 5 denote corresponding parts, and 19 is an opposing surface centering portion which is provided on the overlapping surface of the flywheels 16 and comprises a convex portion and a concave portion which are fitted to each other.

In the passenger conveyor configured as described above, similarly to the above-described embodiment of FIGS. 1 to 5, an equivalent amount of the flywheel 16 corresponding to the test specifications is applied to the electric motor 8 at the time of the passenger conveyor braking test. The output shaft 13 is temporarily provided via a sleeve 14, and a flywheel 16 is formed with a centering portion 17. Therefore, detailed description is omitted, but FIG.
In this embodiment, the same operation as in the embodiment shown in FIGS. 1 to 5 can be obtained.

In the embodiment shown in FIG. 6, since the opposed surface centering portion 19 is provided, the flywheels 16 can be easily centered on the sleeve 14 provided on the output shaft 13. it can. Therefore, the amount of protrusion of the sleeve 14 from the end of the output shaft 13 can be reduced,
The required space of the machine room 2 can be reduced.

Embodiment 3 FIGS. 7 and 8 also show an example of another embodiment of the present invention. FIG.
FIG. 8 is an enlarged sectional view of a portion C in FIG. 7 showing a temporary state of the flywheel. 7 and 8 are the same as those in FIGS.
A passenger conveyor is configured as in FIG. In the figure, the same reference numerals as those in FIGS. 1 to 5 and 6 denote corresponding parts.

Reference numeral 6 denotes a vertical drive, and 16 denotes a flywheel arranged horizontally. One of the lower wheels is fitted to a sleeve 14 provided on an output shaft 13 by a centering portion 17, and a plurality of wheels are mounted thereon. The pieces are superimposed and arranged concentrically with each other by the opposing surface centering portion 19. Reference numeral 20 denotes an engagement pin projecting downward from the lower surface of the upper flywheel 16. The engagement pin 20 is disposed by forming a gap in the through hole of the lower flywheel 16 and the sleeve 14, and is disposed in a horizontal direction. To block.

In the passenger conveyor configured as described above, similarly to the above-described embodiment of FIGS. 1 to 5 and FIG. 6, the equivalent corresponding to the test specifications at the time of the braking test of the passenger conveyor. The amount of flywheel 16 is the output shaft 1 of the electric motor 8
3 and a flywheel 16 is provided with a centering portion 17 and a facing surface centering portion 19. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 and the embodiment of FIG. 6 can be obtained in the embodiment of FIGS.

In the embodiment shown in FIGS. 7 and 8, the flywheel 16 is disposed horizontally with respect to the output shaft 13 of the vertical driving machine 6 which is disposed vertically, and Is prevented from moving in the horizontal direction. Thus, when the flywheel 16 is temporarily installed, the flywheel 16 is attached to the mounting bolt 15.
And the nut 18 does not need to be fastened, so that the flywheel 16 can be easily attached and detached during a braking test of the passenger conveyor. Therefore, the braking test of the passenger conveyor can be easily performed without requiring a complicated operation, and the work efficiency of the braking test can be improved.

[0042]

As described above, according to the present invention, a transport belt in which a large number of treads are connected endlessly and arranged on a main frame and circulated, and a motor and a brake are provided on the main frame. At the time of a braking test of a passenger conveyor equipped with a drive unit that drives the transport belt, an equivalent amount of flywheel corresponding to the test specifications is temporarily installed on the output shaft of the motor and operated, and the stopping distance when the brake is activated is set. It is to be measured.

Thus, the stop distance during the operation of the brake equivalent to the braking load can be measured without placing the braking load on the tread of the passenger conveyor. Accordingly, the braking test of the passenger conveyor can be easily performed without the need for complicated steps, and the operation efficiency of the braking test is improved.

Further, as described above, a plurality of flywheels are arranged in a state of being overlapped with each other, and the flywheels are temporarily provided so as to form an equivalent amount corresponding to the test data.

As a result, the number of flywheels can be adjusted to easily cope with different test specifications at the time of a passenger conveyor or a braking test having different specifications. Therefore, given GD
It can be used for different test specifications such as by providing a plurality of ^second flywheel, the effect of improving the working efficiency of the braking test.

As described above, according to the present invention, the flywheel is temporarily mounted on the output shaft of the electric motor via the centering portion.

Thus, the flywheel can be easily centered on the output shaft of the electric motor via the centering portion.
For this reason, the rotational balance of the driving machine at the time of temporary installation of the flywheel can be maintained, and there is an effect of improving the working efficiency of the braking test without requiring any special adjustment.

Further, as described above, in the present invention, flywheels are temporarily disposed by being arranged in a superposed state via the centering portions of the opposing surfaces provided on the opposing surfaces.

Thus, the plurality of flywheels can be arranged in a centered state by the facing surface centering portion. Therefore, the amount of protrusion of the output shaft member of the electric motor can be reduced, and the required space in the machine room can be reduced.

As described above, according to the present invention, the drive unit is a vertical type in which the output shaft of the motor is arranged in a vertical direction, and the flywheel is provided with an opposing surface alignment unit provided on the opposing surfaces. And placed temporarily in the horizontal position on the output shaft, and project downward from the lower surface of the upper flywheel to form a gap in the through hole of the lower flywheel and the output shaft member of the electric motor and insert it. And engagement pins for preventing horizontal displacement of the flywheels with respect to each other.

As a result, the flywheel is disposed horizontally with respect to the vertical driving machine, and the horizontal displacement of the flywheels is prevented by the engagement pins, so that it is not necessary to fasten the flywheel when the flywheel is temporarily installed. The flywheel can be easily attached and detached during the braking test of the conveyor. Accordingly, the braking test of the passenger conveyor can be easily performed without the need for complicated steps, and the operation efficiency of the braking test is improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention, and is a diagram corresponding to FIG. 10 described later.

FIG. 2 is a diagram showing a state of the flywheel during normal operation.
FIG.

FIG. 3 is a perspective view of the flywheel shown in FIG.
Part enlarged sectional view.

FIG. 4 also shows another temporary state of the flywheel in FIG. 1B.
Part enlarged sectional view.

FIG. 5 is a graph showing the relationship between braking speed and time in a braking test of a passenger conveyor.

FIG. 6 is a view showing a second embodiment of the present invention, and is a view corresponding to FIG. 2 described above.

FIG. 7 is a view showing a third embodiment of the present invention, and is a view corresponding to FIG. 1 described above.

FIG. 8 is an enlarged sectional view of a portion C of FIG. 7 showing a temporary state of the flywheel.

FIG. 9 is a view for explaining a conventional braking test method of a passenger conveyor, and is a longitudinal sectional view conceptually showing a longitudinal end portion of a passenger conveyor formed of an escalator.

FIG. 10 is an enlarged sectional view taken along line AA of FIG. 9;

[Explanation of symbols]

1 main frame, 3 transport belt, 4 treads, 6 driving machine, 8 electric motor, 9 brake, 13 output shaft, 16 flywheel, 17
Centering part, 19 Opposing face centering part, 20 engaging pins.

Claims (5)

[Claims] 1. A transport belt in which a large number of treads are connected endlessly and arranged on a main frame and operated in circulation, and an electric motor and a brake are provided on the main frame to drive the transport belt. A braking test method for a passenger conveyor, in which a flywheel of an equivalent amount corresponding to the test specifications is temporarily mounted on an output shaft of the electric motor and operated during a braking test of a passenger conveyor provided with a driving machine. 2. The method for testing the braking of a passenger conveyor according to claim 1, wherein a plurality of flywheels are arranged in a state of being overlapped with each other, and are formed temporarily to form an equivalent amount corresponding to test specifications. 3. The braking test method for a passenger conveyor according to claim 1, wherein the flywheel is temporarily mounted on an output shaft of the electric motor via a centering portion. 4. The braking test method for a passenger conveyor according to claim 2, wherein the flywheels are temporarily disposed by being arranged in a superposed state through opposing surface alignment portions provided on opposing surfaces of each other. 5. The driving device according to claim 1, wherein the driving device is a vertical type in which an output shaft of the motor is arranged in a vertical direction, and the flywheels are arranged in a superposed state through opposing surface alignment portions provided on opposing surfaces. The output shaft is temporarily installed in a horizontal posture, and is protruded downward from the lower surface of the upper flywheel to form a gap in the through hole of the lower flywheel and the output shaft member. 3. The method according to claim 2, further comprising an engagement pin for preventing displacement.