Portable Parallel Elevator Traction Steel Belt Friction Coefficient Real-time Detection Device and Method

Abstract

This invention discloses a portable parallel elevator traction steel belt friction coefficient real-time detection device and method, relating to the field of elevator testing technology. It includes a first support plate, a second support plate, and a third support plate. A first movable bracket is slidably mounted on the first support plate, a second movable bracket is slidably mounted on the second support plate, and a third movable bracket is slidably mounted on the third support plate. The real-time friction coefficient detection mechanism can detect elevator traction steel belts at different vertical positions. By increasing the number of core detection modules on the horizontal guide rail, a parallel detection device is formed, thereby measuring the friction coefficient of the inner and outer surfaces of multiple elevator traction steel belts. By moving the first, second, and third movable brackets, the detection device can measure the friction coefficient of elevator traction steel belts at different positions.

Description

Technical Field

[0001] This invention relates to the field of elevator testing technology, and in particular to a portable device and method for real-time detection of the friction coefficient of traction steel belts in parallel elevators. Background Technology

[0002] As a new type of elevator, steel belt elevators use traction steel belts instead of traditional steel wire ropes, enabling more efficient friction drive and transmission. They have many advantages such as light weight, long service life, high comfort, safety, and energy saving. With the increasing frequency of elevator use in daily life, elevator safety issues have also received increasing attention. Especially against the backdrop of the renovation of old residential areas and the continuous increase in the number of elevators, elevator entrapment, malfunctions, and safety accidents occur frequently, seriously affecting public safety and social stability. To address this, the government has introduced a series of policies to promote the transformation of elevator quality and safety assurance and intelligent maintenance models.

[0003] Elevator traction steel belts are susceptible to wear, cracks, and other damage during service due to time-varying loads, dynamic contact, and complex environments. These damages alter the friction coefficient, affecting system stability and safety. Alternating damage can even lead to serious accidents. Current traction steel belt inspection relies on manual inspection and periodic replacement, which suffers from low accuracy, susceptibility to missed or incorrect detections, and difficulty in timely detection of potential risks. Furthermore, periodic replacement leads to excessive resource waste and increased costs. The current situation is clearly inadequate. Therefore, there is a need to propose a portable parallel elevator traction steel belt friction coefficient real-time detection device and method. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as reliance on manual inspection and periodic replacement for traction steel belt detection, which results in low accuracy, easy omissions and misdetections, difficulty in timely detection of potential risks, and excessive scrapping, resource waste, and increased costs due to periodic replacement. The invention proposes a portable parallel elevator traction steel belt friction coefficient real-time detection device and method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A portable parallel elevator traction steel belt friction coefficient real-time detection device includes a first support plate, a second support plate, and a third support plate. A first movable bracket is slidably mounted on the first support plate, a second movable bracket is slidably mounted on the second support plate, and a third movable bracket is slidably mounted on the third support plate. A steel belt friction coefficient real-time detection mechanism is jointly provided on the first, second, and third movable brackets. Moving the steel belt friction coefficient real-time detection mechanism can detect elevator traction steel belts at different vertical positions, and a core detection module for measuring the friction coefficient of the elevator traction steel belt is installed.

[0007] The core detection module includes an outer surface detection slider and an inner surface detection slider slidably mounted on a first movable support, as well as a first tension sensor and a second tension sensor. The movement of the outer surface detection slider pushes the elevator traction steel belt into contact with the inner surface detection slider. The movement of the elevator traction steel belt creates friction between the outer and inner surface detection sliders. The outer and inner surface detection sliders, acted upon by the elevator traction steel belt, pull on the first and second tension sensors. Increasing the number of core detection modules on the horizontal guide rail forms a parallel detection device, thereby measuring the friction coefficient of the inner and outer surfaces of multiple elevator traction steel belts. The first movable support moves on the first support plate, the second movable support moves on the second support plate, and the third movable support moves on the third support plate. The fixed support acts as a fixing device. By moving the first, second, and third movable supports, the detection device can measure the friction coefficient of the elevator traction steel belts at different positions.

[0008] The above technical solution further includes:

[0009] Preferably, a first set of vertical guide rails is symmetrically fixedly connected to the side of the first support plate near the second support plate. A slider and a first limiter are slidably arranged on the outer side of both sets of the first set of vertical guide rails. The ends of the two sets of sliders away from the first support plate are fixedly connected to the first movable bracket. A second set of vertical guide rails is symmetrically fixedly connected to the side of the second support plate near the first support plate. A third set of vertical guide rails is symmetrically fixedly connected to the side of the third support plate near the first support plate.

[0010] Preferably, multiple sets of first limiters are slidably arranged on the second set of vertical guide rails and the third set of vertical guide rails. The outer sides of the multiple sets of first limiters are slidably connected to the second movable bracket and the third movable bracket, respectively. The first set of vertical guide rails, the second set of vertical guide rails and the third set of vertical guide rails are equipped with first limiters that restrict the movement of the slider. The first limiters can restrict the movement of the first movable bracket, the second movable bracket and the third movable bracket.

[0011] Preferably, a first longitudinal horizontal guide rail is fixedly connected to the outer side of the first movable bracket. A small slider and a second limiter are symmetrically slidably arranged on the outer side of the first longitudinal horizontal guide rail. A second longitudinal horizontal guide rail and a third longitudinal horizontal guide rail are fixedly connected to the outer sides of the second and third movable brackets, respectively. A first transverse horizontal guide rail and a second transverse horizontal guide rail are slidably arranged between the first and second longitudinal horizontal guide rails. A third transverse horizontal guide rail and a fourth transverse horizontal guide rail are slidably arranged between the first and third longitudinal horizontal guide rails. A second limiter is slidably arranged on the outer side of both the second and third longitudinal horizontal guide rails. A first sensor track is slidably arranged between the first and second movable brackets. A second sensor track is slidably arranged between the first and third movable brackets. The first transverse horizontal guide rail, the second transverse horizontal guide rail, the third transverse horizontal guide rail, and the fourth transverse horizontal guide rail can all slide on the outer side of the first, second, and third movable brackets. The relative position of the inner surface detection slider can be adjusted by adjusting the third transverse horizontal guide rail and the fourth transverse horizontal guide rail.

[0012] Preferably, multiple sets of fourth and fifth vertical guide rails are slidably arranged on the first and second horizontal guide rails, and multiple sets of seventh and sixth vertical guide rails are slidably arranged on the third and fourth horizontal guide rails. Third limiters are symmetrically slidably arranged on the outer sides of the first, second, third, and fourth horizontal guide rails, and the third limiters can lock the outer surface detection slider and the inner surface detection slider in position.

[0013] Preferably, a first support slider is slidably disposed on the outer side of the fourth set of vertical guide rails; the outer side of the fifth set of vertical guide rails is slidably connected to the outer surface detection slider; the outer side of the sixth set of vertical guide rails is slidably connected to the inner surface detection slider; a second support slider is slidably disposed on the outer side of the seventh set of vertical guide rails; a fourth limiter and a fifth limiter are slidably disposed on the outer sides of the fourth and fifth sets of vertical guide rails, respectively, for limiting the first support slider and the outer surface detection slider; a sixth limiter and a seventh limiter are slidably disposed on the outer sides of the sixth and seventh sets of vertical guide rails, respectively, for limiting the position of the inner surface detection slider and the second support slider.

[0014] Preferably, an electric cylinder is fixedly connected to the outer side of the first support slider, and the output shaft end of the electric cylinder is fixedly connected to the outer surface detection slider. An outer surface detection camera is fixedly connected to the upper part of the first support slider. A first tension sensor is jointly arranged between the outer surface detection slider and the first sensor track. A pressure sensor is fixedly connected to the outer side of the second support slider. The end of the pressure sensor away from the second support slider is fixedly connected to the inner surface detection slider. A second tension sensor is jointly fixedly connected between the inner surface detection slider and the second sensor track. An inner surface detection camera is fixedly connected to the upper part of the second support slider. The inner surface detection camera and the outer surface detection camera are used to photograph the inner and outer surface conditions of the elevator traction steel belt and record photos of the steel belt surface under different friction coefficients.

[0015] Preferably, the outer sides of the first support plate, the second support plate, and the third support plate are all fixedly connected to fixed brackets. The fixed brackets are fixedly connected to the elevator protective frame. The upper part of the elevator protective frame is fixedly connected to a motor. The output shaft end of the motor is fixedly connected to a traction sheave. Multiple sets of elevator traction steel belts are installed on the outer side of the traction sheave. The two ends of the multiple sets of elevator traction steel belts are respectively fixedly connected to a counterweight and an elevator car. The counterweight and the elevator car can achieve dynamic balance of the elevator and reduce damage to the elevator.

[0016] A method for real-time detection of the friction coefficient of a portable parallel elevator traction steel belt includes the following steps:

[0017] Step 1: The real-time steel belt friction coefficient detection mechanism is adjusted and moved on the opposite sides of the first, second, and third moving supports according to the detection requirements, so that the real-time steel belt friction coefficient detection mechanism corresponds to multiple sets of elevator traction steel belts;

[0018] Step 2: Drive the outer surface detection slider. The movement of the outer surface detection slider will push the elevator traction steel belt to contact the inner surface detection slider. The movement of the elevator traction steel belt will create friction between the outer surface detection slider and the inner surface detection slider. The outer surface detection slider and the inner surface detection slider will be pulled by the elevator traction steel belt, which will pull the first tension sensor and the second tension sensor. The first tension sensor and the second tension sensor can sense the friction force of the elevator traction steel belt on the outer surface detection slider and the inner surface detection slider at this time.

[0019] Step 3: By increasing the number of core detection modules, a parallel detection device is formed, thereby measuring the friction coefficient of the inner and outer surfaces of multiple elevator traction steel belts.

[0020] The present invention has the following beneficial effects:

[0021] 1. In this invention, by setting up a real-time detection mechanism for the friction coefficient of the steel belt, by changing the vertical positional relationship of the first moving bracket, the second moving bracket, and the third moving bracket on the first support plate, the second support plate, and the third support plate, and by adjusting the core detection module installed on the real-time detection mechanism for the friction coefficient of the steel belt, the friction coefficient of the elevator traction steel belt at different vertical positions can be detected. This avoids the problem of relying on manual inspection, improves the detection accuracy, and avoids missed or incorrect detections.

[0022] 2. In this invention, an inner surface detection slider, an outer surface detection slider, a first tension sensor, a second tension sensor, a pressure sensor, and a clamping device are connected by a vertical guide rail to form a core detection module. By increasing the number of core detection modules on the horizontal guide rail, a parallel detection device is formed, thereby measuring the friction coefficient of the inner and outer surfaces of multiple elevator traction steel belts. This avoids missed or incorrect detections, timely detection of potential risks, and also avoids resource waste and increased costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the portable parallel elevator traction steel belt friction coefficient real-time detection device and method proposed in this invention.

[0024] Figure 2 This is a schematic diagram of the overall structure of the real-time detection mechanism for the steel strip friction coefficient in this invention;

[0025] Figure 3 This is a schematic diagram of the core detection module structure in this invention;

[0026] Figure 4 This is a top view of the core detection module in this invention.

[0027] Figure 5 This is a side view of the core detection module in this invention.

[0028] Figure 6 This is a bottom view of the core detection module in this invention.

[0029] Figure 7 This is a schematic diagram of the first part of the core detection module in this invention;

[0030] Figure 8 This is a schematic diagram of the second part of the core detection module in this invention;

[0031] Figure 9 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0032] Figure 10 for Figure 5 Enlarged schematic diagram of the structure at point B;

[0033] Figure 11 for Figure 3 Enlarged schematic diagram of the structure at point C.

[0034] In the diagram: 1. First support plate; 2. Second support plate; 3. Third support plate; 4. First movable bracket; 5. Second movable bracket; 6. Third movable bracket; 7. First set of vertical guide rails; 8. Second set of vertical guide rails; 9. Third set of vertical guide rails; 10. Slider; 11. First limiter; 12. First longitudinal horizontal guide rail; 13. Second longitudinal horizontal guide rail; 14. Third longitudinal horizontal guide rail; 15. Small slider; 16. Second limiter; 17. First transverse horizontal guide rail; 18. Second transverse horizontal guide rail; 19. First sensor track; 20. Third transverse horizontal guide rail; 21. Fourth transverse horizontal guide rail; 22. Second sensor track; 23. Fourth set of vertical guide rails; 24. 25. Fifth set of vertical guide rails; 26. Sixth set of vertical guide rails; 27. Seventh set of vertical guide rails; 28. Third limiter; 29. ​​First support slider; 30. Outer surface detection slider; 31. Fourth limiter; 32. Fifth limiter; 33. Electric push cylinder; 34. First tension sensor; 35. Second tension sensor; 36. Inner surface detection slider; 37. Pressure sensor; 38. Second support slider; 39. Sixth limiter; 40. Seventh limiter; 41. Outer surface detection camera; 42. Inner surface detection camera; 43. Fixed bracket; 44. Traction sheave; 45. Motor; 46. Counterweight; 47. Elevator car; 48. Elevator traction steel belt; 49. Elevator protective outer frame. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figures 1-11 As shown, the portable parallel elevator traction steel belt friction coefficient real-time detection device proposed in this invention includes a first support plate 1, a second support plate 2, and a third support plate 3. A first movable bracket 4 is slidably arranged on the first support plate 1, a second movable bracket 5 is slidably arranged on the second support plate 2, and a third movable bracket 6 is slidably arranged on the third support plate 3. A steel belt friction coefficient real-time detection mechanism is jointly arranged on the first movable bracket 4, the second movable bracket 5, and the third movable bracket 6. The movable steel belt friction coefficient real-time detection mechanism can detect elevator traction steel belts at different vertical positions and is equipped with a core detection module for measuring the friction coefficient of the elevator traction steel belt 47.

[0037] The core detection module includes an outer surface detection slider 29 and an inner surface detection slider 35 slidably mounted on the first movable support 4, as well as a first tension sensor 33 and a second tension sensor 34. The movement of the outer surface detection slider 29 will push the elevator traction steel belt 47 into contact with the inner surface detection slider 35. The movement of the elevator traction steel belt 47 will create friction between the outer surface detection slider 29 and the inner surface detection slider 35. The outer surface detection slider 29 and the inner surface detection slider 35, under the action of the elevator traction steel belt 47, will pull the first tension sensor 33 and the second tension sensor 34. By increasing the number of core detection modules on the transverse horizontal guide rail, a parallel detection device is formed, thereby measuring the friction coefficient of the inner and outer surfaces of multiple elevator traction steel belts 47. The fixed support 42 serves as a fixing device. By moving the first movable support 4, the second movable support 5, and the third movable support 6, the detection device can measure the friction coefficient of the elevator traction steel belt 47 at different positions.

[0038] A first set of vertical guide rails 7 are symmetrically fixedly connected to the side of the first support plate 1 near the side of the second support plate 2. A slider 10 and a first limiter 11 are slidably arranged on the outer side of both sets of the first set of vertical guide rails 7. The ends of the two sets of sliders 10 away from the first support plate 1 are fixedly connected to the first movable bracket 4. A second set of vertical guide rails 8 are symmetrically fixedly connected to the side of the second support plate 2 near the side of the first support plate 1. A third set of vertical guide rails 9 are symmetrically fixedly connected to the side of the third support plate 3 near the side of the first support plate 1.

[0039] Multiple sets of first limiters 11 are slidably arranged on the second set of vertical guide rails 8 and the third set of vertical guide rails 9. The outer sides of the multiple sets of first limiters 11 are slidably connected to the second movable bracket 5 and the third movable bracket 6, respectively. The first set of vertical guide rails 7, the second set of vertical guide rails 8 and the third set of vertical guide rails 9 are equipped with first limiters 11 that restrict the movement of the slider. The first limiters 11 can restrict the movement of the first movable bracket 4, the second movable bracket 5 and the third movable bracket 6.

[0040] A first longitudinal horizontal guide rail 12 is fixedly connected to the outer side of the first movable bracket 4. A small slider 15 and a second limiter 16 are symmetrically slidably arranged on the outer side of the first longitudinal horizontal guide rail 12. A second longitudinal horizontal guide rail 13 and a third longitudinal horizontal guide rail 14 are fixedly connected to the outer sides of the second movable bracket 5 and the third movable bracket 6, respectively. A first transverse horizontal guide rail 17 and a second transverse horizontal guide rail 18 are slidably arranged between the first longitudinal horizontal guide rail 12 and the second longitudinal horizontal guide rail 13. A third transverse horizontal guide rail 20 and a fourth transverse horizontal guide rail 21 are slidably arranged between the first longitudinal horizontal guide rail 12 and the third longitudinal horizontal guide rail 14. A second limiter 16 is slidably provided on the outer side of both the guide rail 13 and the third longitudinal horizontal guide rail 14. A first sensor track 19 is slidably provided between the first moving bracket 4 and the second moving bracket 5. A second sensor track 22 is slidably provided between the first moving bracket 4 and the third moving bracket 6. The first transverse horizontal guide rail 17, the second transverse horizontal guide rail 18, the third transverse horizontal guide rail 20, and the fourth transverse horizontal guide rail 21 can all slide on the outer side of the first moving bracket 4, the second moving bracket 5, and the third moving bracket 6. The relative position of the inner surface detection slider 35 can be adjusted by adjusting the third transverse horizontal guide rail 20 and the fourth transverse horizontal guide rail 21.

[0041] Multiple sets of fourth vertical guide rails 23 and multiple sets of fifth vertical guide rails 24 are slidably arranged on the first horizontal guide rail 17 and the second horizontal guide rail 18. Multiple sets of seventh vertical guide rails 26 and multiple sets of sixth vertical guide rails 25 are slidably arranged on the third horizontal guide rail 20 and the fourth horizontal guide rail 21. A third limiter 27 is symmetrically slidably arranged on the outer side of the first horizontal guide rail 17, the second horizontal guide rail 18, the third horizontal guide rail 20 and the fourth horizontal guide rail 21. The third limiter 27 can lock the outer surface detection slider 29 and the inner surface detection slider 35 in position.

[0042] The fourth set of vertical guide rails 23 has a first support slider 28 slidably mounted on its outer side. The fifth set of vertical guide rails 24 is connected to the outer surface detection slider 29 by a sliding rod. The sixth set of vertical guide rails 25 is slidably connected to the inner surface detection slider 35. The seventh set of vertical guide rails 26 has a second support slider 37 slidably mounted on its outer side. The fourth set of vertical guide rails 23 and the fifth set of vertical guide rails 24 have a fourth limiter 30 and a fifth limiter 31 slidably mounted on their outer sides, respectively. The fourth limiter 30 and the fifth limiter 31 are used to limit the position of the first support slider 28 and the outer surface detection slider 29. The sixth set of vertical guide rails 25 and the seventh set of vertical guide rails 26 have a sixth limiter 38 and a seventh limiter 39 slidably mounted on their outer sides, respectively. The sixth limiter 38 and the seventh limiter 39 are used to limit the position of the inner surface detection slider 35 and the second support slider 37.

[0043] An electric push cylinder 32 is fixedly connected to the outer side of the first support slider 28. The output shaft end of the electric push cylinder 32 is fixedly connected to the outer surface detection slider 29. An outer surface detection camera 40 is fixedly connected to the upper part of the first support slider 28. A first tension sensor 33 is jointly arranged between the outer surface detection slider 29 and the first sensor track 19. A pressure sensor 36 is fixedly connected to the outer side of the second support slider 37. The end of the pressure sensor 36 away from the second support slider 37 is fixedly connected to the inner surface detection slider 35. A second tension sensor 34 is fixedly connected between the inner surface detection slider 35 and the second sensor track 22. An inner surface detection camera 41 is fixedly connected to the upper part of the second support slider 37. The outer surface detection camera 41 is used to photograph the inner and outer surface conditions of the elevator traction steel belt 47 and record photos of the steel belt surface under different friction coefficients.

[0044] The outer sides of the first support plate 1, the second support plate 2, and the third support plate 3 are all fixedly connected to fixed brackets 42. The fixed brackets 42 are fixedly connected to the elevator protective frame 48. The upper part of the elevator protective frame 48 is fixedly connected to the motor 44. The output shaft end of the motor 44 is fixedly connected to the traction sheave 43. Multiple sets of elevator traction steel belts 47 are installed on the outer side of the traction sheave 43. The two ends of the multiple sets of elevator traction steel belts 47 are respectively fixedly connected to counterweights 45 and elevator cars 46. The counterweights 45 and elevator cars 46 can achieve dynamic balance of the elevator and reduce damage to the elevator.

[0045] In this embodiment, when the elevator traction steel belt 47 in the elevator of this device is being moved, the first support plate 1, the second support plate 2, and the third support plate 3 need to be fixed to the slotted position of the elevator protective frame 48 by the fixed bracket 42. By moving the first moving bracket 4, the second moving bracket 5, and the third moving bracket 6, the steel belt friction coefficient real-time detection mechanism can be moved vertically until it is moved to a suitable position. At this time, the first moving bracket 4 will slide on the outside of the two sets of first vertical guide rails 7 through the slider 10, the second moving bracket 5 will slide on the outside of the second set of vertical guide rails 8 through the first limiter 11, and the third moving bracket 6 will also slide on the outside of the third set of vertical guide rails 9 through the first limiter 11. When detecting the elevator traction steel belt 47, the outer surface detection slider 29 and the first support slider 28 are moved synchronously to a position parallel to the outer surface of the elevator traction steel belt 47 through the fourth set of vertical guide rails 23 and the fifth set of vertical guide rails 24. By moving the fourth set of vertical guide rails 23 to the position of the first horizontal guide rail 17 and the fifth set of vertical guide rails 24 to the position of the second horizontal guide rail 18, the outer surface of the elevator traction steel belt 47 is positioned at the center of the outer surface detection slider 29. At the same time, the positions of each component are fixed by the third limiter 27, the fourth limiter 30 and the fifth limiter 31. At this time, the inner surface detection slider 35 connected to the pressure sensor 36 and the second support slider 37 are also moved synchronously to a position parallel to the inner surface of the elevator traction steel belt 47 by the sixth set of vertical guide rails 25 and the seventh set of vertical guide rails 26. Then, by moving the sixth set of vertical guide rails 25 to the position of the third horizontal guide rail 20 and the seventh set of vertical guide rails 26 to the position of the fourth horizontal guide rail 21, the inner surface of the elevator traction steel belt 47 is positioned at the center of the inner surface detection slider 35. At the same time, the positions of each component are fixed by the third limiter 27, the sixth limiter 38 and the seventh limiter 39.

[0046] When the tensioning device is working, the piston rod of the electric push cylinder 32 pushes the outer surface detection slider forward to press the elevator traction steel belt 47, so that the inner surface of the elevator traction steel belt 47 is in full contact with the detection surface of the inner surface detection slider 35, and at the same time the position of the first transverse horizontal guide rail 17 and the third transverse horizontal guide rail 20 is fixed by the second limiter 16.

[0047] When the elevator is running, the elevator traction sheave drives the elevator traction steel belt 47 to move through friction. The elevator traction steel belt 47 pulls the inner surface detection slider 35 and the outer surface detection slider 29 upward through friction. At this time, the first tension sensor 33 and the second tension sensor 34 located on the lower surfaces of the inner surface detection slider 35 and the outer surface detection slider 29 collect the frictional force generated by the inner and outer surfaces of the elevator traction steel belt 47. At the same time, the pressure sensor 36 located between the inner surface detection slider 35 and the second support slider 37 collects the horizontal force of the elevator traction steel belt 47. The friction coefficient of the inner surface of the traction steel belt 47 is calculated by measuring the normal pressure on the first tension sensor 33 and the pressure sensor 36, and the friction coefficient of the outer surface of the traction steel belt 47 is calculated by measuring the normal pressure on the second tension sensor 34 and the pressure sensor 36. At the same time, by activating the visual inspection devices installed on the first support slider 28 and the second support slider 37, the surface conditions of the inner and outer surfaces of the elevator traction steel belt 47 are photographed each time they are inspected, and the steel belt surface photos under different friction coefficients are recorded.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable parallel elevator traction steel belt friction coefficient real-time detection device, comprising a first support plate (1), a second support plate (2), and a third support plate (3), characterized in that, A first movable bracket (4) is slidably arranged on the first support plate (1), a second movable bracket (5) is slidably arranged on the second support plate (2), and a third movable bracket (6) is slidably arranged on the third support plate (3). A real-time detection mechanism for the friction coefficient of the steel strip is jointly provided on the first movable bracket (4), the second movable bracket (5), and the third movable bracket (6). Moving the real-time detection mechanism for the friction coefficient of the steel strip can detect the elevator traction steel strip at different vertical positions, and a core detection module for measuring the friction coefficient of the elevator traction steel strip (47) is installed. The core detection module includes an outer surface detection slider (29) and an inner surface detection slider (35) slidably mounted on a first movable bracket (4), as well as a first tension sensor (33) and a second tension sensor (34). The movement of the outer surface detection slider (29) will push the elevator traction steel belt (47) to contact the inner surface detection slider (35). The movement of the elevator traction steel belt (47) will create friction between the outer surface detection slider (29) and the inner surface detection slider (35). The outer surface detection slider (29) and the inner surface detection slider (35) will be pulled by the elevator traction steel belt (47) by the elevator traction steel belt (47), which will pull the first tension sensor (33) and the second tension sensor (34). The number of core detection modules is increased on the horizontal guide rail to form a parallel detection device, thereby measuring the friction coefficient of the inner and outer surfaces of multiple elevator traction steel belts (47). The first movable bracket (4) is fixedly connected to a first longitudinal horizontal guide rail (12). A small slider (15) and a second limiter (16) are symmetrically slidably arranged on the outer side of the first longitudinal horizontal guide rail (12). The second movable bracket (5) and the third movable bracket (6) are respectively fixedly connected to a second longitudinal horizontal guide rail (13) and a third longitudinal horizontal guide rail (14). A first transverse horizontal guide rail (17) and a second transverse horizontal guide rail (18) are slidably arranged between the first longitudinal horizontal guide rail (12) and the second longitudinal horizontal guide rail (13). 8), a third transverse horizontal guide rail (20) and a fourth transverse horizontal guide rail (21) are slidably arranged between the first longitudinal horizontal guide rail (12) and the third longitudinal horizontal guide rail (14), a second limiter (16) is slidably arranged on the outer side of the second longitudinal horizontal guide rail (13) and the third longitudinal horizontal guide rail (14), a first sensor track (19) is slidably arranged between the first moving bracket (4) and the second moving bracket (5), and a second sensor track (22) is slidably arranged between the first moving bracket (4) and the third moving bracket (6). Multiple sets of fourth vertical guide rails (23) and multiple sets of fifth vertical guide rails (24) are slidably arranged on the first horizontal guide rail (17) and the second horizontal guide rail (18). Multiple sets of seventh vertical guide rails (26) and multiple sets of sixth vertical guide rails (25) are slidably arranged on the third horizontal guide rail (20) and the fourth horizontal guide rail (21). A third limiter (27) is symmetrically slidably arranged on the outer side of the first horizontal guide rail (17), the second horizontal guide rail (18), the third horizontal guide rail (20) and the fourth horizontal guide rail (21). The fourth set of vertical guide rails (23) is slidably provided with a first support slider (28), the fifth set of vertical guide rails (24) is slidably connected with the outer surface detection slider (29), the sixth set of vertical guide rails (25) is slidably connected with the outer surface detection slider (35), the seventh set of vertical guide rails (26) is slidably provided with a second support slider (37), the fourth set of vertical guide rails (23) and the fifth set of vertical guide rails (24) are respectively slidably provided with a fourth limiter (30) and a fifth limiter (31), the sixth set of vertical guide rails (25) and the seventh set of vertical guide rails (26) are respectively slidably provided with a sixth limiter (38) and a seventh limiter (39); An electric cylinder (32) is fixedly connected to the outer side of the first support slider (28). The output shaft end of the electric cylinder (32) is fixedly connected to the outer surface detection slider (29). An outer surface detection camera (40) is fixedly connected to the upper part of the first support slider (28). A first tension sensor (33) is provided between the outer surface detection slider (29) and the first sensor track (19). A pressure sensor (36) is fixedly connected to the outer side of the second support slider (37). The end of the pressure sensor (36) away from the second support slider (37) is fixedly connected to the inner surface detection slider (35). A second tension sensor (34) is fixedly connected between the inner surface detection slider (35) and the second sensor track (22). An inner surface detection camera (41) is fixedly connected to the upper part of the second support slider (37).

2. The portable parallel elevator traction steel belt friction coefficient real-time detection device according to claim 1, characterized in that, The first support plate (1) is symmetrically fixedly connected to a first set of vertical guide rails (7) on the side near the second support plate (2). Slider (10) and first limiter (11) are slidably arranged on the outer side of both sets of the first set of vertical guide rails (7). The ends of the two sets of sliders (10) away from the first support plate (1) are fixedly connected to the first movable bracket (4). The second support plate (2) is symmetrically fixedly connected to a second set of vertical guide rails (8) on the side near the first support plate (1). The third support plate (3) is symmetrically fixedly connected to a third set of vertical guide rails (9) on the side near the first support plate (1).

3. The portable parallel elevator traction steel belt friction coefficient real-time detection device according to claim 2, characterized in that, Multiple sets of first limiters (11) are slidably arranged on the second set of vertical guide rails (8) and the third set of vertical guide rails (9). The outer sides of the multiple sets of first limiters (11) are slidably connected to the second movable bracket (5) and the third movable bracket (6) respectively.

4. The portable parallel elevator traction steel belt friction coefficient real-time detection device according to claim 1, characterized in that, The first support plate (1), the second support plate (2) and the third support plate (3) are all fixedly connected to the outer side of the fixed bracket (42). The fixed bracket (42) is fixedly connected to the elevator protective frame (48). The upper part of the elevator protective frame (48) is fixedly connected to the motor (44). The output shaft end of the motor (44) is fixedly connected to the traction sheave (43). Multiple sets of elevator traction steel belts (47) are installed on the outer side of the traction sheave (43). The two ends of the multiple sets of elevator traction steel belts (47) are respectively fixedly connected to the counterweight (45) and the elevator car (46).

5. A method for real-time detection of the friction coefficient of a portable parallel elevator traction steel belt, comprising the portable parallel elevator traction steel belt friction coefficient detection device as described in claim 1, characterized in that... Includes the following steps: Step 1: The real-time detection mechanism for steel belt friction coefficient is adjusted and moved on the opposite sides of the first moving support (4), the second moving support (5) and the third moving support (6) according to the detection requirements, so that the real-time detection mechanism for steel belt friction coefficient corresponds to multiple sets of elevator traction steel belts (47); Step 2: Drive the outer surface detection slider (29). The movement of the outer surface detection slider (29) will push the elevator traction steel belt (47) to contact the inner surface detection slider (35). The movement of the elevator traction steel belt (47) will create friction between the outer surface detection slider (29) and the inner surface detection slider (35). The outer surface detection slider (29) and the inner surface detection slider (35) will be pulled by the elevator traction steel belt (47) by the elevator traction steel belt (47). The first tension sensor (33) and the second tension sensor (34) can sense the friction force of the elevator traction steel belt (47) on the outer surface detection slider (29) and the inner surface detection slider (35) at this time. Step 3: By increasing the number of core detection modules, a parallel detection device is formed, thereby measuring the friction coefficient of the inner and outer surfaces of multiple elevator traction steel belts (47).

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