KR20240008411A - device for detection - Google Patents

Abstract

The detection device 32 includes a rail 33, a support device 34, a guide member 35, and a holding member 37. The support device 34 moves along the X-axis by being guided by the rail 33. When the guide member 35 is arranged so that the guide surface 35a touches the inner plate 22a of the chain from the side, the light from the displacement gauge 30 held by the holding member 37 passes through the inner plate 22b of the chain. ) is investigated in the cross section.

Description

device for detection

This disclosure relates to a detection device used when detecting a chain.

Patent Document 1 describes a device for detecting chain elongation. The device described in Patent Document 1 includes a displacement meter. Light from the displacement meter is irradiated to the chain, and the height of the chain is measured.

International Publication No. 2018/096615

FIG. 14 of Patent Document 1 shows that light from a displacement meter is irradiated to the positions shown in (a) to (c). Through further investigation by the applicant, it was found that it is preferable for the light from the displacement meter to be irradiated to the position shown in (a) or the position shown in (b). However, because the link plates of the chain are thin, it was difficult to match the light from the displacement meter to the position shown in (a) or the position shown in (b).

This disclosure was made to solve the problems described above. The purpose of the present disclosure is to provide a detection device that can irradiate light from a displacement meter to the end face of a link plate of a chain by simple operation.

A detection device according to the present disclosure includes a rail arranged to cross the upper part of a chain along a first axis, a support device supported by the rail and moved along the first axis by being guided by the rail, and a first A guide surface is formed and has a first guide member that moves along a first axis with the support device and a retaining member that moves along the first axis with the support device. When the first guide member is arranged so that the first guide surface touches the first link plate of the chain from the side, light from the displacement meter held by the holding member is irradiated to the end face of the second link plate of the chain.

By using the detection device according to the present disclosure, light from the displacement meter can be irradiated to the cross section of the link plate of the chain by simple operation.

1 is a cross-sectional view showing an example of an escalator.
Figure 2 is a side view showing an example of a drive chain.
3 is a plan view showing an example of a drive chain.
Figure 4 is a front view showing an example of a drive chain.
Figure 5 is a diagram showing an example of a detection device in Embodiment 1.
FIG. 6 is a diagram showing a cross section taken along AA of FIG. 5.
FIG. 7 is a diagram showing an example in which the support device is moved to the left along the rail from the state shown in FIG. 5.
FIG. 8 is a view corresponding to the AA cross section of FIG. 5.
Figure 9 is a diagram showing another example of a support device.
Figure 10 is a diagram showing another example of a support device.
Figure 11 is a diagram showing another example of a detection device.
Figure 12 is a diagram showing another example of a guide member.
Figure 13 is a diagram showing another example of a guide member.

Below, detailed description is given with reference to the drawings. Overlapping descriptions will be appropriately simplified or omitted. In each drawing, like symbols represent like parts or equivalent parts.

Embodiment 1.

1 is a cross-sectional view showing an example of an escalator. First, referring to Figure 1, the escalator will be described. The escalator has a truss (1) and steps (2). The truss (1) is laid over the upper and lower layers. Passengers climb the step 2 and move from the boarding gate (not shown) to the disembarkation gate 3. That is, Figure 1 shows an upward escalator as an example.

Below the unloading port 3, a machine room 4 is provided. The machine room (4) is a space formed inside the truss (1). In the machine room 4, an electric motor 5, a reducer 6, and a control device 7 are provided. The electric motor 5 drives the sprocket 8 via the reducer 6. The control device 7 controls the electric motor 5.

A drive chain (10) is wound around the sprocket (9) and sprocket (8), which are the output of the reducer (6). Sprockets 12 and 13 are provided on the shaft 11 on which the sprocket 8 is provided. Sprockets 12 and 13 rotate together with sprocket 8. A step chain (14) is wound around the sprocket (12). The step chain 14 is provided with a plurality of step axes 15. A step 2 is fixed to each step axis 15. Thereby, a number of steps 2 are connected to the step chain 14. The step 2 moves by being pulled by the step chain 14.

A handrail chain (16) is wound around the sprocket (13). The handrail chain 16 transmits the driving force of the electric motor 5 to the driving device 17. The driving device 17 drives the moving handrail 18.

Next, with reference to FIGS. 2 to 4 , the structure of the drive chain 10 will be described. Figure 2 is a side view showing an example of the drive chain 10. 3 is a plan view showing an example of the drive chain 10. Figure 4 is a front view showing an example of the drive chain 10. The drive chain 10 has an inner link 20 and an outer link 21.

The inner link 20 has inner plates 22a and 22b, bushes 23a and 23b, and rollers 24a and 24b. The inner plate 22a and the inner plate 22b are arranged to face each other. The bush 23a connects one end of the inner plate 22a and one end of the inner plate 22b. The bush 23b connects the other end of the inner plate 22a with the other end of the inner plate 22b. Bush 23a and bush 23b are arranged in parallel.

The roller 24a is rotatably provided on the bush 23a. The bush 23a penetrates the roller 24a. The roller 24a is disposed between the inner plate 22a and the inner plate 22b. The roller 24b is rotatably provided on the bush 23b. The bush 23b penetrates the roller 24b. The roller 24b is disposed between the inner plate 22a and the inner plate 22b.

The outer link 21 has outer plates 25a and 25b and pins 26a and 26b. The outer plate 25a and the outer plate 25b are arranged to face each other with the inner link 20 sandwiched therebetween. The pin 26a connects one end of the outer plate 25a and one end of the outer plate 25b. The pin (26a) penetrates the bush (23b). The pin 26b connects the other end of the outer plate 25a with the other end of the outer plate 25b. The pin (26b) penetrates the bush (23a). By this, the outer link 21 and the inner link 20 are connected.

In the example shown in this embodiment, the inner plate 22a, inner plate 22b, outer plate 25a, and outer plate 25b are examples of link plates provided in the chain.

In escalators, stretching of each chain is detected during regular inspection, etc. As an example, light is radiated from the displacement meter 30 to the moving chain to detect stretching of the chain. The signal processing device 31 detects the elongation of the chain based on the detection result by the displacement meter 30. Detection of chain elongation is performed, for example, by a method similar to the method described in International Publication No. 2018/096615. Figure 1 shows an example of detecting stretching of the drive chain 10.

In order to detect chain elongation by a method similar to the method described in International Publication No. 2018/096615, it is preferable to shine light from the displacement meter 30 on the cross section of the link plate. In the example shown in FIG. 14 of International Publication No. 2018/096615, it is preferable to shine the light from the displacement meter 30 at the position shown in (a) or the position shown in (b).

Below, with reference to FIGS. 5 to 7 , a device for arranging the displacement meter 30 at an appropriate detection position will be described. Hereinafter, the device is also referred to as a detection device. In addition, below, an example of detecting stretching of the drive chain 10 will be described in detail.

FIG. 5 is a diagram showing an example of the detection device 32 in Embodiment 1. FIG. 6 is a diagram showing a cross section taken along line A-A of FIG. 5. The detection device 32 includes a rail 33, a support device 34, a guide member 35, a guide member 36, and a holding member 37.

The rail 33 is arranged to cross the upper part of the drive chain 10 along the X-axis. In the example shown in this embodiment, the X-axis is an axis that is perpendicular and horizontal to the direction in which the drive chain 10 moves. The rail 33 is fixed to the fixture 41 by a bolt 40. The fixture 41 is a member such as a beam provided on the truss 1 or a bracket fixed to the truss 1.

The support device 34 is supported on a rail 33. The support device 34 is guided by the rail 33 and moves along the X-axis. The guide member 35, guide member 36, and holding member 37 are supported by the support device 34. For this reason, the guide member 35, guide member 36, and holding member 37 move along the X-axis together with the support device 34.

5 and 6, the support device 34 includes a slider 42, a support arm 43, a pin 44, a support arm 45, a pin 46, a base 47, and an adjuster. Provided with a bolt (48).

The slider 42 is a member that contacts the rail 33 and is directly guided by the rail 33. In the examples shown in FIGS. 5 and 6 , the slider 42 is arranged to face the side surface of the rail 33 .

The support arm 43 is, for example, a rod-shaped member with a circular cross-section. The upper end of the support arm 43 is fixed to the slider 42. The support arm 43 extends downward from the slider 42. A guide member 35 is provided at the lower end of the support arm 43 via a pin 44. Pins 44 are arranged along the X-axis. That is, the guide member 35 is provided on the support arm 43 so that it can be displaced about the pin 44.

A guide surface 35a is formed on the guide member 35. In the examples shown in FIGS. 5 and 6, the guide member 35 is plate-shaped. The guide surface 35a is a plane perpendicular to the X-axis. The guide surface 35a may be curved so as to protrude toward the guide member 36.

The support arm 45 is, for example, a rod-shaped member with a circular cross-section. The upper end of the support arm 45 is fixed to the slider 42. The support arm 45 extends downward from the slider 42. The support arm 45 is arranged parallel to the support arm 43. A guide member 36 is provided at the lower end of the support arm 45 via a pin 46. Pins 46 are arranged along the X-axis. That is, the guide member 36 is provided on the support arm 45 so that it can be displaced about the pin 46. The pins 46 are preferably arranged in a straight line with respect to the pins 44.

A guide surface 36a is formed on the guide member 36. In the examples shown in FIGS. 5 and 6, the guide member 36 is plate-shaped. The guide surface 36a is a plane perpendicular to the X-axis. The guide surface 36a is arranged to face the guide surface 35a. The guide surface 36a may be curved so as to protrude toward the guide member 35 side.

The base 47 is provided on the support arm 43 and the support arm 45. In the examples shown in FIGS. 5 and 6 , the support arm 43 and the support arm 45 penetrate the base 47 . The base 47 is placed on the step portion 43a of the support arm 43 and the step portion 45a of the support arm 45. The base 47 may be fixed to the support arm 43 and the support arm 45.

The adjustment bolt 48 is supported on the base 47. The adjustment bolt 48 is an example of a member that can be displaced up and down with respect to the base 47. In the example shown in FIGS. 5 and 6, a screw hole 47a is formed in the base 47 in the vertical direction. The adjustment bolt 48 is mounted on the screw hole 47a. For this reason, by rotating the adjustment bolt 48, the adjustment bolt 48 can be displaced up and down with respect to the base 47. The screw hole 47a is preferably disposed at an intermediate position between the support arm 43 and the support arm 45.

The holding member 37 is provided at the lower end of the adjustment bolt 48. The holding member 37 holds the displacement gauge 30. Light is emitted downward from the displacement gauge 30 held by the holding member 37. It is preferable that the light in question is a laser. Additionally, the light from the displacement meter 30 preferably passes between the guide surface 35a and the guide surface 36a.

The guide member 35 is positioned so that the distance (interval) between the light from the displacement meter 30 held by the holding member 37 and the guide surface 35a matches the distance (interval) of the two link plates. The location is set. Specifically, as shown in FIGS. 5 and 6, when the guide member 35 is arranged so that the guide surface 35a touches the inner plate 22a from the side, the displacement gauge 30 held by the holding member 37 ) is irradiated from above onto the upper end surface of the inner plate 22b.

Therefore, when the escalator inspector fixes the rail 33 to the fixture 41 using the bolt 40, the guide member 35 is moved to the inner plate 22a by moving the slider 42. Contact it from the outside. As a result, the displacement meter 30 can be arranged so that the light from the displacement meter 30 is irradiated from above on the upper end surface of the inner plate 22b. By using the detection device 32, the inspector can shine the light from the displacement meter 30 onto the cross section of the inner plate 22b through a simple operation.

5 and 6 show an example where the two link plates are the inner plate 22a and the inner plate 22b. This is an example. Any combination of the two link plates may be used. For example, if the guide member 35 is arranged so that the guide surface 35a touches the outer plate 25a from the side, even if the light from the displacement meter 30 is irradiated to the upper cross section of the inner plate 22b, do. As another example, if the guide member 35 is arranged so that the guide surface 35a touches the outer plate 25a from the side, even if the light from the displacement meter 30 is irradiated to the upper end surface of the outer plate 25b, do.

FIG. 7 is a diagram showing an example in which the support device 34 is moved to the left along the rail 33 from the state shown in FIG. 5 . Similar to the guide member 35, the guide member 36 is such that the distance (interval) between the light from the displacement gauge 30 held by the holding member 37 and the guide surface 36a is the distance between the two link plates. The position is set to fit the (interval). FIG. 7 shows an example where the distance between the light from the displacement meter 30 and the guide surface 36a is the same as the distance between the light from the displacement meter 30 and the guide surface 35a. In this case, if the guide member 36 is disposed so that the guide surface 36a touches the inner plate 22b from the side, the light from the displacement meter 30 held by the holding member 37 is transmitted to the inner plate 22a. The upward cross-section of is irradiated from above.

In the example shown in this embodiment, the detection device 32 is provided with a guide member 35 and a guide member 36. This is an example. The detection device 32 may include only the guide member 35 or only the guide member 36. However, if the detection device 32 is provided with both the guide member 35 and the guide member 36, the position of the displacement meter 30 can be adjusted from both the right and left sides of the chain.

FIG. 8 is a view corresponding to the cross section A-A in FIG. 5. FIG. 8 shows an example in which the drive chain 10 moves in direction B from the state shown in FIG. 6. For example, as shown in FIGS. 5 and 6, when the guide member 35 touches the inner plate 22a from the outside, the guide member 35 moves against the outer plate 25a when the drive chain 10 is moved. contact.

In the example shown in this embodiment, the guide member 35 is provided on the support arm 43 so that it can be displaced about the pin 44. For this reason, when the guide member 35 comes into contact with the outer plate 25a as the drive chain 10 moves, the guide member 35 rotates around the pin 44. In the example shown in this embodiment, after the position adjustment of the displacement gauge 30 is completed, the guide member 35 is moved so that the guide member 35 does not interfere with detection, or the guide member 35 is moved to the support arm 43. ) There is no need to separate it from the. For this reason, detection of stretching of the drive chain 10 can be easily performed.

Below, other functions that the detection device 32 can employ are explained. If possible, the detection device 32 may be employed by combining a plurality of functions described below.

The detection device 32 may further include a cleaning member that is detachable from the holding member 37 . In the example shown in FIG. 5, light from the displacement meter 30 is irradiated to the upward cross section of the inner plate 22b. For this reason, if the cross section of the inner plate 22b is contaminated, it becomes impossible to accurately detect the stretching of the drive chain 10.

When the detection device 32 is equipped with a cleaning member, the inspector attaches the cleaning member to the holding member 37 before performing detection by the displacement meter 30. Then, with the cleaning member mounted on the holding member 37, the drive chain 10 is moved. As a result, the end surface of the inner plate 22b can be cleaned by the cleaning member. When cleaning with the cleaning member is completed, the inspector removes the cleaning member from the holding member 37 and mounts the displacement meter 30 on the holding member 37.

9 is a diagram showing another example of the support device 34. In the example shown in FIG. 9, a through hole 42a through which the adjustment bolt 48 passes is formed in the slider 42. The adjustment bolt 48 passes through the through hole 42a and protrudes upward from the slider 42. In the example shown in FIG. 8, the maintenance worker can easily operate the adjustment bolt 48. In particular, when cleaning is performed using a cleaning member, the cleaning member needs to lightly touch the end surface of the inner plate 22b. In the example shown in FIG. 8, the cleaning member can be easily moved up and down.

FIG. 10 is a diagram showing another example of the support device 34. Figure 10 corresponds to the cross section A-A in Figure 5. The example shown in Fig. 10 is different from the example shown in Figs. 5 and 6 in that the slider 42 is provided with a guide member 49 and a displacement member 50.

The guide member 49 is a member that contacts the rail 33 and is directly guided by the rail 33. The guide member 49 is arranged to face the side surface of the rail 33.

The displacement member 50 is supported on the guide member 49. The displacement member 50 can be displaced up and down with respect to the guide member 49. The support arm 43 and the support arm 45 are provided on the displacement member 50 and extend downward from the displacement member 50 . That is, the upper end of the support arm 43 is fixed to the displacement member 50. The upper end of the support arm 45 is fixed to the displacement member 50. For this reason, the guide member 35, guide member 36, and holding member 37 move along the X-axis together with the guide member 49. The guide member 35, guide member 36, and holding member 37 move up and down together with the displacement member 50.

In the example shown in FIG. 10, the vertical positions of the guide member 35, the guide member 36, and the holding member 37 can also be easily adjusted.

FIG. 11 is a diagram showing another example of the detection device 32. Figure 11 corresponds to the cross section A-A in Figure 5. In the example shown in FIG. 11 , the slider 42 is arranged to face the upper surface of the rail 33. The width of the slider 42 is larger than the width of the rail 33. For this reason, the sliders 42 are arranged to protrude on both sides of the rail 33.

The support arm 43 and the support arm 45 are disposed on one side of the rail 33, similar to the example shown in FIGS. 5 and 6. Each of the support arms 43 and 45 extends downward from the rail 33.

The detection device 32 shown in FIG. 11 includes a support arm 51 and a support arm 52 (not shown) in addition to the support arm 43 and the support arm 45. The support arm 51 and the support arm 52 are disposed on the other side of the rail 33. Each of the support arms 51 and 52 extends downward from the rail 33. The rail 33 is arranged to pass between the support arm 43 and the support arm 51. Additionally, the rail 33 is arranged to pass between the support arm 45 and the support arm 52.

The base 47 is provided on the support arm 43, the support arm 45, the support arm 51, and the support arm 52.

In the example shown in FIG. 11, the rigidity of the detection device 32 can be increased, and the detection accuracy by the displacement meter 30 can be further improved.

FIG. 12 is a diagram showing another example of the guide member 35. In the guide member 35 shown in FIG. 12, a guide surface 35b is formed in addition to the guide surface 35a. Fig. 12 shows a state in which the guide surface 35a contacts the inner plate 22b from the side. The guide surface 35b contacts from above the inner plate 22b with which the guide surface 35a contacts from the side. In the example shown in FIG. 12, position adjustment of the displacement meter 30 in the vertical direction can be performed more easily.

FIG. 13 is a diagram showing another example of the guide member 35. The guide member 35 shown in FIG. 13 has a portion that covers the link plate of the chain from above. A guide surface 35a and a guide surface 35b are formed on the corresponding portion of the guide member 35. In the example shown in FIG. 13, it can be easily confirmed that the guide surface 35a is disposed at an appropriate position with respect to the link plate.

In this embodiment, an example in which light from the displacement meter 30 is irradiated to the cross section of the drive chain 10 has been explained in detail. This is an example. When irradiating light from the displacement meter 30 to the cross section of another chain provided in the escalator, the detection device 32 may be used. When irradiating light from the displacement meter 30 to the cross section of a chain provided in a device other than an escalator, the detection device 32 may be used.

The detection device according to the present disclosure can be used when light from a displacement meter is illuminated on the cross section of a chain.

1: Truss 2: Step
3: Unloading gate 4: Machine room
5: electric motor 6: reducer
7: Control unit 8: Sprocket
9: sprocket 10: drive chain
11: axis 12: sprocket
13: sprocket 14: step chain
15: step axis 16: handrail chain
17: driving device 18: moving handrail
20: inner link 21: outer link
22a~22b: Inner plate 23a~23b: Bush
24a~24b: roller 25a~25b: outer plate
26a~26b: Pin 30: Displacement meter
31: signal processing device 32: detection device
33: rail 34: support device
35: guide member 35a: guide surface
35b: Guide surface 36: Guide member
36a: Guide surface 37: Holding member
40: bolt 41: fixture
42: Slider 42a: Through hole
43: support arm 43a: step portion
44: Pin 45: Support arm
45a: Step portion 46: Pin
47: Base 47a: Screw hole
48: Adjustment bolt 49: Guide member
50: absence of displacement

Claims (8)

A rail arranged to cross the upper part of the chain along the first axis,
a support device supported on the rail and moved along the first axis by being guided by the rail;
a first guide member on which a first guide surface is formed and which moves along the first axis together with the support device;
a holding member that moves along the first axis together with the support device,
When the first guide member is arranged so that the first guide surface touches the first link plate of the chain from the side, light from the displacement gauge held by the holding member is transmitted through the cross section of the second link plate of the chain. ) A device for detection that is irradiated. In claim 1,
The support device is,
a slider guided by the rail,
A support arm extending downward from the slider,
The first guide member is a detection device provided on the support arm. In claim 2,
The support device further includes a pin disposed along the first axis,
A detection device wherein the first guide member is provided on the support arm so that it can be displaced about the pin. In claim 2 or claim 3,
The slider is,
a guiding member in contact with the rail;
A first displacement member is supported on the guide member and is capable of being displaced up and down with respect to the guide member,
The support arm is a detection device provided on the first displacement member. In claim 4,
A detection device wherein the first guide member is provided with a second guide surface that contacts from above with respect to the first link plate with which the first guide surface contacts from the side. The method according to any one of claims 2 to 5,
The support device is,
A base provided on the support arm,
Further comprising a second displacement member supported on the base and capable of being displaced up and down with respect to the base,
A detection device wherein the holding member is provided on the second displacement member. The method according to any one of claims 1 to 6,
A third guide surface is formed opposite the first guide surface, and further includes a second guide member that moves along the first axis together with the support device,
When the second guide member is disposed so that the third guide surface contacts the second link plate from the side, light from a displacement meter held by the holding member is irradiated to the end surface of the first link plate. . The method according to any one of claims 1 to 7,
A detection device further comprising a cleaning member detachable from the holding member.