CN213141056U - Traction sheave wearing degree monitoring devices - Google Patents
Traction sheave wearing degree monitoring devices Download PDFInfo
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- CN213141056U CN213141056U CN202021836837.7U CN202021836837U CN213141056U CN 213141056 U CN213141056 U CN 213141056U CN 202021836837 U CN202021836837 U CN 202021836837U CN 213141056 U CN213141056 U CN 213141056U
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- traction sheave
- light source
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- photoelectric device
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Abstract
The utility model relates to the technical field of elevators, in particular to a traction sheave wear degree monitoring device, which is arranged below a traction sheave; the detection device comprises a shell, a photoelectric device, a light source and a convex lens, wherein grooves and arc-shaped grooves are alternately arranged in the shell, the grooves correspond to the positions of the rope grooves respectively, the arc-shaped grooves are matched with the outer ring of the traction sheave, and one side of each group of the shell is provided with the light source; the utility model discloses simple structure, suitability are strong, the device sets up the light source in traction sheave groove one end, light source light passes through traction sheave grooving printing opacity to the other end, set up convex lens at the other end, focus the printing opacity back, beat light on the photoelectric device, the signal of telecommunication of photoelectric device output changes along with the intensity change of light, the degree of wear of traction sheave groove is confirmed through the signal of telecommunication of confirming the photoelectric device output to realize the real-time supervision of traction sheave degree of wear, suitable further popularization and application.
Description
Technical Field
The utility model relates to an elevator technical field, concretely relates to traction sheave wearing and tearing monitoring devices.
Background
With the improvement of living standard, the elevator becomes an indispensable vehicle for people to go out. When the elevator is in use, the steel wire rope is driven by the traction sheave to generate tension to drive the elevator car to run. The traction sheave grooves are worn due to long-term use. The abrasion of the traction wheel groove can cause the defects of insufficient traction force, ladder sliding, out of control and the like, and can cause the accidents of hurting people such as top rushing, bottom squating, shearing and the like in serious cases. At present, the elevator traction wheel groove is detected by visual inspection, and real-time and long-term monitoring cannot be carried out.
SUMMERY OF THE UTILITY MODEL
The utility model provides a traction sheave wearing and tearing degree monitoring devices can effectively solve above-mentioned problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the detecting device is arranged below the traction sheave;
the detection device comprises a shell, photoelectric devices, a light source and convex lenses, wherein grooves and arc-shaped grooves are alternately arranged in the shell, the grooves correspond to the positions of the rope grooves respectively, the arc-shaped grooves are matched with the outer ring of the traction sheave, the light source is arranged on one side of the shell, the photoelectric devices are arranged on the other side of the shell, the convex lenses used for converging light rays are arranged between the photoelectric devices and the light source, and the photoelectric devices are electrically connected with an external control device.
Preferably, the arc-shaped groove is in clearance fit with the outer ring of the traction sheave, and the fit clearance is 0.1-0.3 mm.
Furthermore, a cover body is arranged on the outer side of the traction sheave, the detection device is fixed on the cover body, and an opening for the space-avoiding steel rope is formed in the bottom of the cover body.
Preferably, the light source is a surface light source.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, suitability are strong, the device sets up the light source in traction sheave groove one end, light source light passes through traction sheave grooving printing opacity to the other end, set up convex lens at the other end, focus the printing opacity back, beat light on the photoelectric device, the signal of telecommunication of photoelectric device output changes along with the intensity change of light, the degree of wear of traction sheave groove is confirmed through the signal of telecommunication of confirming the photoelectric device output to realize the real-time supervision of traction sheave degree of wear, suitable further popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the present invention (dotted lines indicate light beams, arrows indicate light beam directions);
fig. 2 is a bottom view of the traction sheave;
FIG. 3 is a schematic structural diagram of the detecting device;
FIG. 4 is a top cross-sectional view of the detection device;
fig. 5 is a top view of the detection device.
The reference numerals in the drawings denote: a traction sheave-1; a steel rope-2; a detection device-3; a cover body-4; a rope groove-101; a housing-31; an opto-electrical device-32; a light source-33; a convex lens-34; a recess-311; an arcuate slot-312.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides a traction sheave wear degree monitoring device, in which a detection device 3 is disposed below a traction sheave 1;
the detection device 3 comprises a shell 31, a photoelectric device 32, a light source 33 and a convex lens 34, wherein the shell 31 is a plastic or metal piece which is light-tight and does not reflect light, grooves 311 and arc-shaped grooves 312 are alternately arranged in the shell 31, the grooves 311 correspond to the positions of the rope grooves 101 respectively, the arc-shaped grooves 312 are matched with the outer ring of the traction sheave 1, the light source 33 is arranged on one side of each group of the shell 31, and the light source 33 adopts a surface light source; the other side of the shell 31 is provided with a photoelectric device 32, and the photoelectric device 32 can be a photoresistor; the photoelectric device 32 and the light source 33 are positioned at two ends of the traction wheel groove; a convex lens 34 for converging light is disposed between the photoelectric device 32 and the light source 33, and the photoelectric device 32 is electrically connected to an external control device, preferably a computer. The distance from the photoelectric device 32 to the light source 33 in the housing 31 is the same, the position of the convex lens 34 is the same, and the convex lens 34 is positioned on the light-emitting side of the rope groove 101.
Further, the arc-shaped groove 312 is in clearance fit with the outer ring of the traction sheave 1, and the fit clearance is 0.1-0.3 mm; so as to prevent external light from entering the upper chamber and influencing the test result.
Furthermore, a cover body 4 is arranged on the outer side of the traction sheave 1, wherein the cover body 4 is a hollow cover body formed by fixing six light-tight plates through bolts; the detection device 3 is fixed in the cover body 4, and the bottom of the cover body 4 is provided with an opening for the clearance steel rope 2; the influence of the incidence of external light on the detection result is reduced.
The electrical signal output by the photoelectric device 32 has a certain relationship with the light intensity, and the light intensity and the standard bus of the electrical signal can be measured by the previous measurement, and the light intensity under the corresponding electrical signal can be determined by the bus; the intensity of the light is proportional to the area of light transmission, so that when the intensity of the light is known, the area of light transmission of the traction sheave, i.e. the cross-sectional area of the rope groove 101, is known.
The light source 33 emits horizontal light, the light is focused by the convex lens 34 and then projected onto the photoelectric device 32, the photoelectric device 32 receives the light and converts the light into an electric signal to be output, when the rope groove 101 is worn, the section area of the rope groove 101 is increased, namely the light transmission area of the light source 33 in the groove 311 is increased, the light intensity received by the photoelectric device 32 is increased due to the increase of the light transmission area, therefore, the electric signal output by the photoelectric device 32 is changed along with the change of the light transmission area, and the degree of wear of the traction wheel groove is determined by determining the electric signal output by the photoelectric.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. The traction sheave wear degree monitoring device is characterized in that a detection device (3) is arranged below a traction sheave (1);
detection device (3) are including casing (31), photoelectric device (32), light source (33) and convex lens (34), be provided with recess (311) and arc wall (312) in casing (31) in turn, recess (311) are corresponding with rope groove (101) position respectively, arc wall (312) and traction wheel (1) outer lane looks adaptation, each group one side of casing (31) all is equipped with light source (33), the opposite side of casing (31) all is equipped with photoelectric device (32), all be equipped with one between photoelectric device (32) and light source (33) and be used for spotlight line convex lens (34), photoelectric device (32) all converge with external control device electric connection.
2. The traction sheave wear degree monitoring device according to claim 1, wherein the arc-shaped groove (312) is in clearance fit with the outer ring of the traction sheave (1), and the fit clearance is 0.1-0.3 mm.
3. The traction sheave wear degree monitoring device according to claim 1, characterized in that a cover (4) is provided outside the traction sheave (1), the detecting device (3) is fixed on the cover (4), and an opening for the clearance steel rope (2) is provided at the bottom of the cover (4).
4. The traction sheave wear degree monitoring device according to claim 1, wherein the light source (33) is a surface light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021836837.7U CN213141056U (en) | 2020-08-28 | 2020-08-28 | Traction sheave wearing degree monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021836837.7U CN213141056U (en) | 2020-08-28 | 2020-08-28 | Traction sheave wearing degree monitoring devices |
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| Publication Number | Publication Date |
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| CN213141056U true CN213141056U (en) | 2021-05-07 |
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| CN202021836837.7U Active CN213141056U (en) | 2020-08-28 | 2020-08-28 | Traction sheave wearing degree monitoring devices |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11718501B2 (en) | 2020-04-06 | 2023-08-08 | Otis Elevator Company | Elevator sheave wear detection |
| CN118425169A (en) * | 2024-07-04 | 2024-08-02 | 河南科技学院 | Crane winding drum rope groove detection device |
-
2020
- 2020-08-28 CN CN202021836837.7U patent/CN213141056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11718501B2 (en) | 2020-04-06 | 2023-08-08 | Otis Elevator Company | Elevator sheave wear detection |
| CN118425169A (en) * | 2024-07-04 | 2024-08-02 | 河南科技学院 | Crane winding drum rope groove detection device |
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