CN211552658U - Simple and convenient many specifications staircase drive chain elongation dipperstick - Google Patents
Simple and convenient many specifications staircase drive chain elongation dipperstick Download PDFInfo
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- CN211552658U CN211552658U CN201922473751.6U CN201922473751U CN211552658U CN 211552658 U CN211552658 U CN 211552658U CN 201922473751 U CN201922473751 U CN 201922473751U CN 211552658 U CN211552658 U CN 211552658U
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Abstract
The utility model relates to a simple and convenient many specifications staircase drive chain elongation dipperstick, including the chi body, chi body side edge is the straight line, and the one end of the chi body extends to both sides and forms the card income end, card income end and chi body formation T style of calligraphy structure, a side edge of card income end and chi body contact be the card income end inboard side, the card income end inboard side perpendicular with chi body side, chi body side edge be carved with standard scale, standard scale and card income end inboard distance between the side be the measurement section, measurement section length be D, D = (9P + D) x 103%, P is the pitch of roller chain in the formula, D is roller chain round pin axle diameter. This kind of dipperstick can detect whether escalator's drive chain's wear elongation exceeds 3%, if wear elongation exceeds 3%, then proves to need to be changed new drive chain, prevents to cause the occurence of failure because drive chain damages.
Description
Technical Field
The utility model relates to an automatic staircase safety inspection technical field, specific simple and convenient many specifications staircase drive chain elongation dipperstick that says so.
Background
The escalator generally transmits power through a driving chain, and proper tensioning and control of the degree of wear of the driving chain are very important, for example, abnormal wear or excessive elongation of the driving chain may cause breakage of the driving chain, loss of power of the escalator, and ineffective braking of a working brake, thereby causing dangerous situations such as back-running or over-speed. When the drive chain breaks, deforms, and extends beyond the specified allowable wear elongation, the chain is considered to be scrapped and needs to be replaced, and the allowable wear elongation is generally 3%. Due to the compact layout of the escalator machine room, the driving chain is positioned between the main machine and the truss, so that the checking and detecting space is small, and the checking and the measuring are inconvenient. Therefore, a simple and effective method is needed to monitor and detect the use state of the driving chain, and when the driving chain is found to be excessively extended or abnormally worn, the driving chain is replaced in time, so as to avoid accidents. In the field of the current escalators, how to effectively detect the abrasion and the over-extension of a driving chain is a difficult point.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a simple and convenient many specifications staircase drive chain elongation dipperstick, whether this kind of dipperstick can detect escalator's drive chain's wearing and tearing elongation exceeds 3%, if wearing and tearing elongation exceeds 3%, then prove to need the drive chain of renewal, prevent to cause the occurence of failure because the drive chain damage.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the utility model provides a simple and convenient many specifications staircase drive chain elongation dipperstick which characterized in that: including the chi body, chi body side edge be the straight line, the one end of the chi body extend to both sides and form the card and enter the end, the card enter the end and form T style of calligraphy structure with the chi body, a side edge of card income end and chi body contact for card income end inboard side, card income end inboard side perpendicular with chi body side, chi body side edge be carved with standard scale, standard scale and card income end inboard side between the distance be the measurement section, measurement section length be D, D = (9P + D) x 103%, P is the pitch of roller chain in the formula, D is roller chain round pin axle diameter.
The roller chain measuring ruler is characterized in that standard scales are engraved on the edge of the side edge of the ruler body and comprise a first scale, a second scale and a third scale, and the distance between the first scale and the inner side edge of the clamping end is a measuring section of a roller chain with an ISO (international standardization organization) chain number of 16A; the distance between the second scale and the inner side edge of the clamped end is a measuring section of the roller chain with the ISO chain number of 20A; the distance between the third scale distance and the inner side edge of the clamped end is a measuring section of the roller chain with the ISO chain number of 24A.
The width of the clamping-in end extension part is smaller than the distance between two adjacent rollers.
The surface of the ruler body is provided with a measuring example for marking a measuring position and the number of standard roller links during measurement.
This kind of simple and convenient many specifications staircase drive chain elongation dipperstick can produce beneficial effect does: first, it is possible to detect if the actual length of the 9 roller segments and rollers exceeds the allowable wear elongation, and if it exceeds 3%, i.e. when the actual length reaches or exceeds 103% of the original length, it indicates that the measured drive chain needs to be replaced. Secondly, a plurality of scales are fixedly arranged on the ruler body and are respectively used for detecting roller chains with ISO chain numbers of 16A, 20A and 24A. Thirdly, the width of the extension part of the clamping end is smaller than the distance between two adjacent rollers, namely the width of the extension part is smaller than the distance between two adjacent rollers of the roller chain with the smallest chain number, so that the extension part can extend into the space between the two rollers to finish measurement. Fourthly, the inner side edge of the clamping end is perpendicular to the side edge of the ruler body, the side edge of the ruler body is a straight line, and when the length of the roller chain in a straightening state is measured, the shape of the side edge of the ruler body of the measuring ruler is matched with the shape of the roller chain, so that the measuring precision is greatly improved.
Drawings
Fig. 1 is the utility model relates to a simple and convenient many specifications staircase drive chain elongation dipperstick's structural schematic.
Fig. 2 is the utility model relates to a simple and convenient many specifications staircase drive chain elongation dipperstick's measurement schematic diagram.
The attached drawings of the specification are marked as follows: 1. a ruler body; 2. a card input end; 3. standard scales; 3.1, first scale; 3.2, second scale; 3.3, third scale; 4. the inner side edge of the clamping end; 5. example of measurement.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments.
As shown in figure 1, a simple and convenient many specifications staircase drive chain elongation dipperstick which characterized in that: including the chi body 1, chi body 1 side edge be the straight line, the one end of chi body 1 extend to both sides and form card income end 2, card income end 2 and chi body 1 form T style of calligraphy structure, the one side edge of card income end 2 and the contact of chi body 1 be the inboard side 4 of card income end, card income end inboard side 4 perpendicular with chi body 1 side, chi body 1 side edge be carved with standard scale 3, standard scale 3 and card income end inboard side 4 between the distance be the measurement section, the measurement section length be D, D = (9P + D) x 103%, P is the pitch of roller chain in the formula, D is roller chain round pin axle diameter.
In the embodiment, the standard scales 3 engraved on the edge of the side edge of the ruler body 1 comprise a first scale 3.1, a second scale 3.2 and a third scale 3.3, and the distance between the first scale 3.1 and the inner side edge 4 of the clamped end is a measuring section of a roller chain with an ISO chain number of 16A; the distance between the second scale 3.2 and the inner side edge 4 of the clamped end is a measuring section of the roller chain with the ISO chain number of 20A; the distance between the third scale 3.3 and the inner side edge 4 of the clamped end is a measuring section of the roller chain with the ISO chain number of 24A.
In this embodiment, the width of the extending portion of the snap-in end 2 is smaller than the distance between two adjacent rollers.
In the present embodiment, the surface of the blade body 1 is provided with a measuring example 5 for indicating a measuring position and the number of standard roller links at the time of measurement.
Further, the ruler body 1 and the clamping end 2 form a T-shaped stainless steel ruler, when a maintenance worker measures, a section of roller chain in a stretched state is selected, one end of the clamping end 2 is embedded between two adjacent rollers, the rest rollers are tightly attached to the edge of the ruler body 1, whether the edge of the last roller exceeds a scale or not is observed, and if the edge exceeds the scale, the chain is determined to be scrapped and needs to be replaced.
The length of 9 roller segments is generally selected as the measurement segment for reasons including: first, the long measuring section causes inconvenience in measurement due to limited service space of the escalator. Secondly, because the roller chain segment in a stretched state needs to be selected for measurement during measurement, a longer measurement segment is not suitable for selection. Third, a small measurement segment length results in insufficient measurement accuracy.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (4)
1. The utility model provides a simple and convenient many specifications staircase drive chain elongation dipperstick which characterized in that: including ruler body (1), ruler body (1) side edge be the straight line, the one end of ruler body (1) extend to both sides and form card income end (2), card income end (2) and ruler body (1) form T style of calligraphy structure, the one side edge of card income end (2) and ruler body (1) contact be the inboard side of card income end (4), card income end inboard side (4) perpendicular with ruler body (1) side, ruler body (1) side edge be carved with standard scale (3), standard scale (3) and card income distance between the inboard side of end (4) be the measurement section, the measurement section length be D, D = (9P + D) x 103%, P is the pitch of roller chain in the formula, D is roller chain round pin axle diameter.
2. The simple multi-specification escalator drive chain elongation measuring scale according to claim 1, wherein: the roller chain measuring ruler is characterized in that standard scales (3) are engraved on the edge of the side edge of the ruler body (1) and comprise a first scale (3.1), a second scale (3.2) and a third scale (3.3), and the distance between the first scale (3.1) and the inner side edge (4) of the clamped end is a measuring section of a roller chain with the ISO chain number of 16A; the distance between the second scale (3.2) and the inner side edge (4) of the clamped end is a measuring section of the roller chain with the ISO chain number of 20A; the distance between the third scale (3.3) and the inner side edge (4) of the clamped end is a measuring section of the roller chain with the ISO chain number of 24A.
3. A convenient multi-specification escalator drive chain elongation gauge according to claim 2, wherein: the width of the extension part of the clamping end (2) is smaller than the distance between two adjacent rollers.
4. The simple multi-specification escalator drive chain elongation measuring scale according to claim 1, wherein: the surface of the ruler body (1) is provided with a measuring example (5) for marking a measuring position and the number of standard roller links during measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473751.6U CN211552658U (en) | 2019-12-31 | 2019-12-31 | Simple and convenient many specifications staircase drive chain elongation dipperstick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473751.6U CN211552658U (en) | 2019-12-31 | 2019-12-31 | Simple and convenient many specifications staircase drive chain elongation dipperstick |
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| Publication Number | Publication Date |
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| CN211552658U true CN211552658U (en) | 2020-09-22 |
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| CN201922473751.6U Active CN211552658U (en) | 2019-12-31 | 2019-12-31 | Simple and convenient many specifications staircase drive chain elongation dipperstick |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117355476A (en) * | 2021-06-01 | 2024-01-05 | 三菱电机楼宇解决方案株式会社 | Tool for determination |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117355476A (en) * | 2021-06-01 | 2024-01-05 | 三菱电机楼宇解决方案株式会社 | Tool for determination |
| CN117355476B (en) * | 2021-06-01 | 2024-04-16 | 三菱电机楼宇解决方案株式会社 | Tool for determination |
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