CN110395650A - Staircase driving chain elongation monitoring device - Google Patents
Staircase driving chain elongation monitoring device Download PDFInfo
- Publication number
- CN110395650A CN110395650A CN201910745374.9A CN201910745374A CN110395650A CN 110395650 A CN110395650 A CN 110395650A CN 201910745374 A CN201910745374 A CN 201910745374A CN 110395650 A CN110395650 A CN 110395650A
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- CN
- China
- Prior art keywords
- elongation
- drive chain
- escalator
- plate
- monitoring device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B23/00—Component parts of escalators or moving walkways
- B66B23/02—Driving gear
- B66B23/024—Chains therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/005—Applications of security monitors
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- Escalators And Moving Walkways (AREA)
Abstract
The present invention discloses a kind of staircase driving chain elongation monitoring device.The staircase driving chain elongation monitoring device includes limit plate, which is fixedly mounted in the substrate for being used to install gear-box of staircase.The gear-box of staircase is movably mounted on the substrate, and the drive chain of staircase is connected on the sprocket wheel in the gear-box.When the elongation of the drive chain not up to default elongation, the gear-box is not contacted with the limit plate.When the elongation of the drive chain of staircase reaches the default elongation, the gear box movement to the contact position contacted with the limit plate.In the present invention, staircase maintenance staff can easily and quickly learn whether the elongation of drive chain has reached its permitted maximal tensility by the way that whether observation gear-box contacts with limit plate, so as to replace the drive chain needed replacing in time, the safety of staircase is improved.
Description
Technical Field
The invention relates to an escalator drive chain elongation monitoring device.
Background
The drive chain of the escalator is connected to a sprocket (otherwise known as a pinion) in a gearbox which is movably mounted on a base plate. In actual use, the gaps between the links of the drive chain gradually increase due to wear, which results in the drive chain gradually becoming longer. As the drive chain elongates, the gearbox moves horizontally on the base plate in the direction of tensioning the drive chain to re-tension the drive chain.
In the prior art, when the elongation of the drive chain reaches the maximum elongation allowed, the drive chain needs to be replaced in time. Therefore, the escalator maintenance personnel need to periodically measure the elongation of the drive chain. In the related art, a measurement scale for measuring a movement amount of a gear box is generally formed on a substrate. Since the amount of movement of the gear box is equal to the amount of elongation of the drive chain, the amount of elongation of the drive chain can be measured. However, the measuring scale formed on the base plate is covered by dust and oil dirt, and is difficult to see clearly after a long time, so that the escalator maintenance personnel cannot timely find that the elongation of the driving chain reaches the maximum elongation allowed by the escalator maintenance personnel, and potential hazards are brought to the safe operation of the escalator.
Disclosure of Invention
An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.
According to one aspect of the invention, an escalator drive chain elongation monitoring device is provided. The escalator drive chain elongation monitoring device comprises a limiting plate which is fixedly arranged on a base plate of an escalator for mounting a gear box. The gear box of the escalator is movably mounted on the base plate, and the drive chain of the escalator is connected to a sprocket in the gear box. When the elongation of the driving chain does not reach the preset elongation, the gear box is not in contact with the limiting plate. When the elongation of the drive chain of the escalator reaches the preset elongation, the gear box moves to the contact position contacted with the limiting plate.
According to an exemplary embodiment of the invention, the gearbox moves horizontally on the base plate in a direction tensioning the drive chain when the drive chain is extended; when the elongation of the drive chain of the escalator is equal to zero, the distance between the limiting plate and the gear box in the horizontal direction is set to be equal to the preset elongation.
According to another exemplary embodiment of the present invention, the distance is set to be not less than 1% and not less than 3% of an initial length of the drive chain; the initial length of the drive chain is the length when the amount of elongation of the drive chain equals zero.
According to another exemplary embodiment of the present invention, the distance is set equal to 1.5%, 2.0% or 2.5% of an initial length of the drive chain.
According to another exemplary embodiment of the present invention, the preset elongation refers to a maximum elongation of the driving chain allowed in actual use; when the elongation of the drive chain reaches the maximum elongation that is allowed in actual use, the drive chain needs to be replaced.
According to another exemplary embodiment of the present invention, the limit plate includes a horizontal connection plate and a vertical blocking plate at an end of the horizontal connection plate; the horizontal connecting plate is placed on the base plate and fixedly connected to the base plate, and the vertical blocking plate is suitable for abutting against the outer wall of the gear box.
According to another exemplary embodiment of the present invention, a screw hole is formed on the base plate, and a connection hole corresponding to the screw hole is formed on the horizontal connection plate; the horizontal connecting plate is fixed to the base plate by screws passing through the connecting holes and screwed into the screw holes.
According to another exemplary embodiment of the present invention, an elastic locking washer is provided between the screw head of the screw and the horizontal connection plate, the elastic locking washer being compressed between the screw head of the screw and the horizontal connection plate to prevent the screw from loosening.
According to another exemplary embodiment of the present invention, a first pin hole is formed on the base plate, and a second pin hole corresponding to the first pin hole is formed on the horizontal connection plate; the horizontal connecting plate is fixed to the base plate by a pin inserted into the first pin hole and the second pin hole.
According to another exemplary embodiment of the invention, the escalator drive chain elongation monitoring device further comprises a trigger switch and an alarm device, wherein the trigger switch is mounted on the limiting plate and is communicated with the alarm device; the trigger switch is triggered by the gear box when the gear box moves to a contact position contacting the limit plate; when the trigger switch is triggered, the alarm device gives an alarm and informs the escalator maintenance personnel that the elongation of the drive chain reaches the preset elongation.
In each of the aforementioned exemplary embodiments according to the present invention, the escalator maintenance worker can conveniently and quickly know whether the elongation of the drive chain has reached the maximum elongation allowed by the escalator maintenance worker by observing whether the gear box is in contact with the limiting plate, so that the drive chain to be replaced can be replaced in time, and the safety of the escalator is improved.
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Drawings
Fig. 1 shows a schematic view of an escalator drive chain elongation monitoring device according to an exemplary embodiment of the present invention;
fig. 2 shows a partially enlarged schematic view of the escalator drive chain elongation monitoring device of fig. 1;
fig. 3 is a perspective view showing the stopper plate of fig. 1.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to one general technical concept of the present invention, there is provided an escalator drive chain elongation monitoring apparatus. The escalator drive chain elongation monitoring device comprises a limiting plate which is fixedly arranged on a base plate of an escalator for mounting a gear box. The gear box of the escalator is movably mounted on the base plate, and the drive chain of the escalator is connected to a sprocket in the gear box. When the elongation of the driving chain does not reach the preset elongation, the gear box is not in contact with the limiting plate. When the elongation of the drive chain of the escalator reaches the preset elongation, the gear box moves to the contact position contacted with the limiting plate.
Fig. 1 shows a schematic view of an escalator drive chain elongation monitoring device according to an exemplary embodiment of the present invention; fig. 2 shows a partially enlarged schematic view of the escalator drive chain elongation monitoring device of fig. 1; fig. 3 shows a perspective view of the stopper plate 100 of fig. 1.
As shown in fig. 1 to 3, in the illustrated embodiment, the escalator drive chain elongation monitoring device mainly includes a limiting plate 100. The stopper plate 100 is fixedly installed on the base plate 10 of the escalator for installing the gear box 20.
As shown in fig. 1-3, in the illustrated embodiment, the gear box 20 of the escalator is movably mounted on the base plate 10, and the drive chain 40 of the escalator is connected to the sprocket 30 in the gear box 20.
As shown in fig. 1 to 3, in the illustrated embodiment, when the elongation of the driving chain 40 does not reach the preset elongation, the gear case 20 does not contact the stopper plate 100. When the extension amount of the drive chain 40 of the escalator reaches the preset extension amount, the gear box 20 moves to the contact position contacting the stopper plate 100.
As shown in fig. 1 to 3, in the illustrated embodiment, the gear box 20 moves horizontally on the base plate 10 in a direction to tension the drive chain 40 when the drive chain 40 is extended. When the elongation of the drive chain 40 of the escalator is equal to zero, the distance d in the horizontal direction between the stopper plate 100 and the gear box 20 is set to be equal to a preset elongation. Thus, the escalator maintenance personnel can conveniently and quickly know whether the elongation of the driving chain 40 reaches the preset elongation by observing whether the gear box 20 contacts the limiting plate 100.
As shown in fig. 1 to 3, in the illustrated embodiment, the preset elongation refers to the maximum elongation of the driving chain 40 allowed in actual use. When the elongation of the drive chain 40 reaches the maximum elongation that is allowed in actual use, the drive chain 40 needs to be replaced.
As shown in fig. 1 to 3, in the illustrated embodiment, the distance d is set to be not less than 1% of the initial length of the drive chain 40 and not less than 3% of the initial length of the drive chain 40. The initial length of the drive chain 40 is the length when the amount of elongation of the drive chain 40 is equal to zero.
As shown in fig. 1 to 3, in the illustrated embodiment, the aforementioned distance d (the maximum elongation allowed by the drive chain) may be set equal to 1.5%, 2.0%, or 2.5% of the initial length of the drive chain 40, depending on the level of safety.
As shown in fig. 1 to 3, in the illustrated embodiment, the stopper plate 100 includes a horizontal connection plate 110 and a vertical blocking plate 120 at an end of the horizontal connection plate 110. The horizontal connecting plate 110 is placed on the base plate 10 and fixedly connected to the base plate 10, and the vertical blocking plate 120 is adapted to abut on an outer wall of the gear case 20.
As shown in fig. 1 to 3, in the illustrated embodiment, a screw hole is formed in the base plate 10, and a connection hole 111 corresponding to the screw hole is formed in the horizontal connection plate 110. The horizontal connecting plate 110 is fixed to the base plate 10 by screws 101 passing through the connecting holes 111 and screwed into the screw holes.
As shown in fig. 1 to 3, in the illustrated embodiment, an elastic locking washer 102 is provided between the head of the screw 101 and the horizontal connecting plate 110. The resilient locking washer 102 is compressed between the head of the screw 101 and the horizontal web 110 to prevent the screw 101 from loosening.
As shown in fig. 1 to 3, in the illustrated embodiment, a first pin hole is formed in the base plate 10, and a second pin hole 113 corresponding to the first pin hole is formed in the horizontal connecting plate 110. The horizontal connection plate 110 is fixed to the base plate 10 by pins 103 inserted into the first and second pin holes 113.
As shown in fig. 1 to 3, in the illustrated embodiment, the escalator drive chain elongation monitoring device further includes a trigger switch (not shown) and an alarm device (not shown). The trigger switch may be mounted on the limiting plate 100 and communicate with the alarm device. When the gear case 20 moves to the contact position contacting the stopper plate 100, the trigger switch is triggered by the gear case 20. When the trigger switch is triggered, the alarm device gives an alarm and informs the escalator maintenance personnel that the elongation of the drive chain reaches the preset elongation. Therefore, the escalator maintenance personnel can timely find and replace the drive chain with the extension reaching the preset extension.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.
Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.
It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.
Claims (10)
1. An escalator drive chain elongation monitoring device, comprising:
a limit plate (100) fixedly installed on a base plate (10) of the escalator for installing the gear box (20),
wherein,
the gear box (20) of the escalator is movably mounted on the base plate (10), the drive chain (40) of the escalator is connected to a sprocket (30) in the gear box (20),
when the elongation of the driving chain (40) does not reach the preset elongation, the gear box (20) is not in contact with the limiting plate (100);
when the elongation of the drive chain (40) of the escalator reaches the preset elongation, the gear box (20) moves to a contact position contacting the limit plate (100).
2. An escalator drive chain elongation monitoring device as claimed in claim 1, wherein:
the gear box (20) moves horizontally on the base plate (10) in a direction of tensioning the drive chain (40) when the drive chain (40) is elongated;
when the elongation of the drive chain (40) of the escalator is equal to zero, the distance (d) in the horizontal direction between the limit plate (100) and the gear box (20) is set equal to the preset elongation.
3. An escalator drive chain elongation monitoring device as claimed in claim 2, wherein:
the distance (d) is set to be not less than 1% and not less than 3% of the initial length of the drive chain (40);
the initial length of the drive chain (40) is the length when the amount of elongation of the drive chain (40) is equal to zero.
4. An escalator drive chain elongation monitoring device as claimed in claim 3, wherein:
the distance (d) is set equal to 1.5%, 2.0% or 2.5% of the initial length of the drive chain (40).
5. An escalator drive chain elongation monitoring device as claimed in claim 1, wherein:
the preset elongation refers to the maximum elongation of the driving chain (40) allowed in actual use,
when the elongation of the drive chain (40) reaches the maximum elongation that is allowed in actual use, the drive chain (40) needs to be replaced.
6. An escalator drive chain elongation monitoring device according to claim 1 or 2, characterized by:
the limiting plate (100) comprises a horizontal connecting plate (110) and a vertical blocking plate (120) positioned at the end part of the horizontal connecting plate (110);
the horizontal connecting plate (110) is placed on the base plate (10) and is fixedly connected to the base plate (10), and the vertical blocking plate (120) is suitable for abutting against the outer wall of the gear box (20).
7. An escalator drive chain elongation monitoring device as claimed in claim 6, wherein:
a threaded hole is formed in the base plate (10), and a connecting hole corresponding to the threaded hole is formed in the horizontal connecting plate (110);
the horizontal connecting plate (110) is fixed to the base plate (10) by a screw (101) passing through the connecting hole and screwed into the screw hole.
8. An escalator drive chain elongation monitoring device as claimed in claim 7, wherein:
an elastic locking washer (102) is arranged between the head of the screw (101) and the horizontal connecting plate (110), and the elastic locking washer (102) is squeezed between the head of the screw (101) and the horizontal connecting plate (110) to prevent the screw (101) from loosening.
9. An escalator drive chain elongation monitoring device according to claim 7 or 8, wherein:
a first pin hole is formed in the base plate (10), and a second pin hole corresponding to the first pin hole is formed in the horizontal connecting plate (110);
the horizontal connecting plate (110) is fixed to the base plate (10) by a pin (103) inserted into the first pin hole and the second pin hole.
10. An escalator drive chain elongation monitoring device as claimed in claim 1, wherein:
the escalator drive chain elongation monitoring device also comprises a trigger switch and an alarm device, wherein the trigger switch is arranged on the limiting plate (100) and is communicated with the alarm device;
the trigger switch is triggered by the gear case (20) when the gear case (20) moves to a contact position contacting the stopper plate (100);
when the trigger switch is triggered, the alarm device gives an alarm and informs the escalator maintenance personnel that the elongation of the drive chain reaches the preset elongation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745374.9A CN110395650A (en) | 2019-08-13 | 2019-08-13 | Staircase driving chain elongation monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745374.9A CN110395650A (en) | 2019-08-13 | 2019-08-13 | Staircase driving chain elongation monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110395650A true CN110395650A (en) | 2019-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910745374.9A Pending CN110395650A (en) | 2019-08-13 | 2019-08-13 | Staircase driving chain elongation monitoring device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003321186A (en) * | 2002-04-30 | 2003-11-11 | Mitsubishi Electric Corp | Operation management device of passenger conveyor |
| JP2007191284A (en) * | 2006-01-20 | 2007-08-02 | Toshiba Elevator Co Ltd | Handrail belt drive device for passenger conveyor |
| JP2009132513A (en) * | 2007-11-30 | 2009-06-18 | Mitsubishi Electric Building Techno Service Co Ltd | Footstep chain abnormality detection device of passenger conveyor |
| CN204310670U (en) * | 2014-11-25 | 2015-05-06 | 杭州西奥电梯有限公司 | A kind of anti-jump fender guard of step of staircase |
| CN205838289U (en) * | 2016-08-05 | 2016-12-28 | 康力电梯股份有限公司 | Staircase main frame installing and adjusting mechanism |
| CN110002329A (en) * | 2018-12-29 | 2019-07-12 | 广州地铁设计研究院股份有限公司 | A kind of escalator on-line monitoring early warning system and method based on cloud platform |
| CN210528217U (en) * | 2019-08-13 | 2020-05-15 | 迅达（中国）电梯有限公司 | Escalator drive chain elongation monitoring device |
-
2019
- 2019-08-13 CN CN201910745374.9A patent/CN110395650A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003321186A (en) * | 2002-04-30 | 2003-11-11 | Mitsubishi Electric Corp | Operation management device of passenger conveyor |
| JP2007191284A (en) * | 2006-01-20 | 2007-08-02 | Toshiba Elevator Co Ltd | Handrail belt drive device for passenger conveyor |
| JP2009132513A (en) * | 2007-11-30 | 2009-06-18 | Mitsubishi Electric Building Techno Service Co Ltd | Footstep chain abnormality detection device of passenger conveyor |
| CN204310670U (en) * | 2014-11-25 | 2015-05-06 | 杭州西奥电梯有限公司 | A kind of anti-jump fender guard of step of staircase |
| CN205838289U (en) * | 2016-08-05 | 2016-12-28 | 康力电梯股份有限公司 | Staircase main frame installing and adjusting mechanism |
| CN110002329A (en) * | 2018-12-29 | 2019-07-12 | 广州地铁设计研究院股份有限公司 | A kind of escalator on-line monitoring early warning system and method based on cloud platform |
| CN210528217U (en) * | 2019-08-13 | 2020-05-15 | 迅达（中国）电梯有限公司 | Escalator drive chain elongation monitoring device |
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