Traction machine wheel groove depth wear detection device

Abstract

The utility model relates to the technical field of elevator detection, in particular to a traction machine wheel groove depth abrasion detection device. The device comprises a test host, a magnetic attraction device is installed at the lower end of the test host, a speed measurement device is installed on one side of the test host, the test host comprises an outer shell and an inner shell slidably arranged in the outer shell in a sleeving mode, an adjusting assembly is arranged in the inner shell, and the adjusting assembly comprises a plurality of installation plates and telescopic connecting rods. The upper ends of the installation plates are hinged to the telescopic connecting rods through first pin shafts, the lower ends of the installation plates are hinged to the telescopic connecting rods through second pin shafts, guide grooves are formed in the lower ends of the installation plates, the second pin shafts penetrate through the guide grooves, the two installation plates located at the ends are installed on the outer shell and the inner shell respectively, and displacement sensors are installed on one sides of the installation plates. The upper end of the displacement sensor is provided with a testing head. The traction sheave groove abrasion detection device can accurately find the abrasion position of the traction sheave groove, meets the detection requirements of traction sheaves of different specifications, and is simple in structure, high in practicability and wider in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator detection, in particular to a traction machine wheel groove depth wear detection device. Background Art

[0002] The traction sheave is the rope pulley on the traction machine, also known as the traction sheave or drive sheave. It transmits the traction power of the elevator, utilizing friction between the traction wire rope and the rope grooves on the traction sheave flange. Because the traction sheave bears the full dynamic and static loads of the car, load, counterweight, and other components, it requires high strength, excellent toughness, and resistance to wear and impact. Ductile iron is often used as the material. To minimize wear of the traction wire rope within the sheave's rope grooves, in addition to selecting the appropriate rope groove profile, the groove's working surface should also meet reasonable requirements for roughness and hardness.

[0003] During operation, the elevator traction sheave contacts the traction sheave groove. After long-term use, the traction sheave groove will wear out, resulting in reduced friction between the wire rope and the traction sheave groove. This can easily lead to wire rope slippage and car vibration, posing a safety hazard and making it impossible to guarantee passenger safety. Therefore, it is necessary to regularly inspect the wear of the traction sheave groove. Existing traction sheave groove wear inspections typically use a ruler or caliper to perform contact inspections of the traction sheave grooves. This requires inspecting each groove in turn, resulting in low inspection efficiency and accuracy. Furthermore, existing contact measurement techniques can typically only determine the depth of groove wear, but cannot measure the overall contour of the groove. Comprehensive analysis of the wear condition of the traction sheave grooves has certain limitations.

[0004] Chinese patent application number 202210662088.8 discloses an elevator traction sheave wear detection method and maintenance device, including a mounting seat, a mounting hole is provided on the upper surface of the bottom end of the mounting seat, and the inner walls of multiple mounting holes are fixed to the wall mounting surface of the elevator by expansion screws. A quick maintenance mechanism is provided inside the mounting seat, and the quick maintenance mechanism includes a first slide rail. An adjustment groove is provided on one side surface of the mounting seat. The maintenance device is provided with an intelligent wear monitoring mechanism to monitor the wear status of the wheel groove of the traction wheel in real time, so as to know the wear status intuitively. The severity of the wheel groove wear of the traction wheel can be known through the value displayed by the grating ruler, and the replacement operation can be performed, avoiding the existing need for caliper measurement and the inability to quickly and intuitively know the degree of wear. However, the end surface of the connecting plate of the maintenance device and the relative surface of the mounting seat are fixedly installed, which makes the installation and disassembly of the intelligent wear detection mechanism not very convenient. In addition, its grating ruler is fixedly installed on one side of the connecting plate corresponding to each wheel groove of the traction wheel, which is only suitable for the detection of one type of traction wheel and cannot be adaptively adjusted according to different types of traction wheels and different wheel groove spacings. Its application is not flexible enough. Utility Model Content

[0005] The purpose of the utility model is to solve the technical problems that the existing traction sheave groove detection efficiency and detection accuracy are low, the existing detection device is inconvenient to install and disassemble, the spacing between the detection equipment cannot be adjusted, and the application is not flexible enough. The utility model provides a traction machine wheel groove depth wear detection device, which can monitor the wear condition of the traction sheave groove in real time through a displacement sensor, thereby judging the wear amount of the traction sheave groove, and can accurately find the wear position of the traction sheave groove through real-time positioning through an encoder. At the same time, the detection data is transmitted to the host computer for processing, which is convenient for the staff to carry out timely maintenance and provides a reliable data reference for ensuring the normal and safe operation of the elevator.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a traction machine wheel groove depth wear detection device, including a test host, a magnetic suction device is installed at the lower end of the test host, and a speed measuring device is installed on one side of the test host. The test host includes an outer shell and a hollow inner shell slidably sleeved inside the outer shell, and a spacing adjustment component is provided in the inner cavity of the inner shell. The spacing adjustment component includes multiple mounting plates and telescopic connecting rods, the upper end of the mounting plate is hinged to the telescopic connecting rod through a first pin shaft, and the lower end of the mounting plate is hinged to the telescopic connecting rod through a second pin shaft. A guide groove is provided at the lower end of the mounting plate, and the second pin shaft is passed through the guide groove. The two mounting plates at the end portions are respectively installed on the outer shell and the inner shell, and a displacement sensor is installed on one side of the mounting plate. A test rod is provided at the upper end of the displacement sensor, and the upper end of the test rod extends out of the inner shell and the outer shell, and a test head is provided at the upper end of the test rod, and an aviation plug is installed on the outer shell, and the aviation plug is electrically connected to the displacement sensor through a wire.

[0007] Furthermore, the telescopic link includes multiple telescopic groups, which are hinged in sequence through a first pin and a second pin. The telescopic group includes two equal-length first links that are cross-hinged in the middle, and the ends of the first links located at the outer ends are also hinged with second links respectively. The two equal-length second links are hinged to each other, and the length of the second link is less than the length of the first link.

[0008] Furthermore, the middle parts of the two first connecting rods in the telescopic group are cross-hinged through a third pin shaft, and avoidance grooves matching the third pin shaft are respectively provided on both sides of the mounting plate.

[0009] Furthermore, the magnetic device is installed at the lower end of the outer shell through a fixing fixture, and the magnetic device includes magnetic components respectively installed on both sides of the fixing fixture, and the magnetic components include a meter rod, a rotating clamp and a magnetic meter base. One end of the meter rod is connected to the fixing fixture, and the other end of the meter rod is connected to the magnetic meter base through the rotating clamp.

[0010] Furthermore, the speed measuring device includes a speed measuring rod, an encoder and a magnetic roller. One end of the speed measuring rod is installed on a fixing fixture, and the other end of the speed measuring rod is installed with an encoder. The encoder is connected to the magnetic roller, and the encoder is electrically connected to the aviation plug through a wire.

[0011] Furthermore, one end of the speed measuring rod is mounted on a fixing fixture via a bolt and a locking nut.

[0012] Furthermore, the outer shell and the inner shell are both elongated box structures, and both the outer shell and the inner shell have open ends, and the open end of the outer shell and the open end of the inner shell are connected in a sliding nested manner.

[0013] Furthermore, the outer shell includes a first outer shell and a second outer shell, the first outer shell and the second outer shell are symmetrically mounted by bolts, and the first outer shell and the second outer shell respectively have an opening.

[0014] Furthermore, the inner shell includes a first inner shell and a second inner shell, the first inner shell and the second inner shell are symmetrically connected by bolts, and the first inner shell and the second inner shell each have an opening.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) The utility model relates to a traction machine wheel groove depth wear detection device. The wear condition of the traction wheel groove can be monitored in real time by a displacement sensor, thereby judging the wear amount of the traction wheel groove. The wear position of the traction wheel groove can be accurately found by real-time positioning with an encoder. At the same time, the detection data is transmitted to the upper computer for processing, which is convenient for the staff to carry out timely maintenance and eliminate safety hazards. It provides a reliable data reference for ensuring the normal and safe operation of the elevator. It has the characteristics of high detection efficiency, high detection accuracy, and good detection effect.

[0017] (2) The utility model of the traction machine wheel groove depth wear detection device is provided with a spacing adjustment component. By pulling out the inner and outer shells of the test host, the distance between the displacement sensors can be adjusted. At the same time, the length of the first connecting rod in the adjustment component is equal, thereby ensuring that the displacement sensors can be adjusted at equal distances, so that the detection device can meet the detection requirements of traction wheels of different specifications. It has a simple structure, strong practicality, and a wider range of applications.

[0018] (3) The utility model relates to a traction machine wheel groove depth wear detection device. The test host is installed on the traction wheel frame through a magnetic device, which can realize the rapid installation of the detection device and the installation operation is more convenient. The height of the test host can be adjusted by the gauge rod and the rotary clamp, so that the displacement sensor is embedded in the traction wheel groove, thereby meeting the detection requirements of the traction wheel groove depth wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the traction machine wheel groove depth wear detection device of the utility model Figure 1 .

[0020] Figure 2 The structure of the traction machine wheel groove depth wear detection device of the utility model Figure 2 .

[0021] Figure 3 This is a structural front view of the traction machine wheel groove depth wear detection device of the utility model.

[0022] Figure 4 This is a rear view of the structure of the traction machine wheel groove depth wear detection device of the present invention.

[0023] Figure 5 The internal structure of the test host of this utility model Figure 1 .

[0024] Figure 6 The internal structure of the test host of this utility model Figure 2 .

[0025] Figure 7 This is a schematic diagram of the application of the traction machine wheel groove depth wear detection device of the present utility model.

[0026] In the figure: 1. outer shell, 101. first outer shell, 102. second outer shell, 2. inner shell, 201. first inner shell, 202. second inner shell, 3. mounting plate, 4. first pin, 5. second pin, 6. first connecting rod, 7. third pin, 8. second connecting rod, 9. guide groove, 10. displacement sensor, 11. test rod, 12. strip groove, 13. test head, 14. arc-shaped avoidance groove, 15. aviation plug, 16. fixing fixture, 17. meter rod, 18. rotating clamp, 19. magnetic meter base, 20. speed measuring rod, 21. encoder, 22. magnetic roller, 23. bolt, 24. locking nut, 25. traction wheel frame, 26. traction wheel. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the specific embodiments.

[0028] like Figure 1-6 The device for detecting the wear depth of a traction machine wheel groove shown in the figure comprises a test host, a magnetic device is installed at the lower end of the test host, and a speed measuring device is installed at one side of the test host.

[0029] The test host includes an outer shell 1 and a hollow inner shell 2 that can be slidably mounted inside the outer shell 1. The outer shell 1 and the inner shell 2 are both elongated box structures, and both the outer shell 1 and the inner shell 2 have open ends. The open end of the outer shell 1 and the open end of the inner shell 2 are slidably nested and connected.

[0030] Preferably, the outer shell includes a first outer shell 101 and a second outer shell 102 . The first outer shell 101 and the second outer shell 102 are symmetrically mounted by M6*10 bolts. The first outer shell 101 and the second outer shell 102 each have an opening.

[0031] Preferably, the inner shell 2 includes a first inner shell 201 and a second inner shell 202 . The first inner shell 201 and the second inner shell 202 are symmetrically mounted by M6*10 bolts. The first inner shell 201 and the second inner shell 202 each have an opening.

[0032] A spacing adjustment component is provided in the inner cavity of the inner shell 2, and the spacing adjustment component includes multiple mounting plates 3 and telescopic links. The telescopic links include multiple telescopic groups, and the multiple telescopic groups are hinged in sequence through the first pin 4 and the second pin 5. The telescopic group includes two equal-length first links 6 with cross-hinges in the middle. The equal-length first links 6 can ensure the equal-distance adjustment of the telescopic link structure. The middle parts of the two first links 6 are cross-hinged by the third pin 7. The ends of the first links 6 located at the outer ends are also hinged with second links 8 respectively. The two equal-length second links 8 are hinged to each other, and the length of the second link 8 is less than the length of the first link 6.

[0033] The upper end of the mounting plate 3 is hinged to the telescopic link through the first pin 4, and the lower end of the mounting plate 3 is hinged to the telescopic link through the second pin 5. A guide groove 9 is provided at the lower end of the mounting plate 3, and the second pin 5 is passed through the guide groove 9. The two mounting plates 3 at the end are respectively mounted on the outer shell 1 and the inner shell 2. A displacement sensor 10 is installed on one side of the mounting plate 3. The displacement sensor 10 is a self-resetting displacement sensor, and its model is ks8-15. A test rod 11 is provided at the upper end of the displacement sensor 10. The upper end of the test rod 11 passes through the strip groove 12 at the top of the inner shell 2 and the outer shell 1 and extends to the outside. A test head 13 is provided at the upper end of the test rod 11. Arc-shaped avoidance grooves 14 matching the third pin 7 are respectively provided on both sides of the mounting plate 3. When the telescopic link is retracted, the third pin 7 can be accommodated in the arc-shaped avoidance groove 14 to adapt to the adjustment requirements of the spacing of the displacement sensor 10.

[0034] By setting up a spacing adjustment component and pulling out the inner and outer shells of the test host, the distance between the displacement sensors can be adjusted. At the same time, the lengths of the first connecting rods in the adjustment component are equal, thereby ensuring that the displacement sensors can be adjusted at equal distances. As a result, the detection device can meet the detection requirements of traction wheels of different specifications, with a simple structure and strong practicality.

[0035] An aviation plug 15 is installed on the outer shell 1 and is electrically connected to the displacement sensor 10 through a wire.

[0036] The magnetic device is installed at the lower end of the outer shell 1 through a fixing fixture 16, and the fixing fixture 16 is installed on the outer shell 1 through M3*16 bolts. The magnetic device includes magnetic components respectively installed on both sides of the fixing fixture 16, and the magnetic components include a meter rod 17, a rotating clamp 18 and a magnetic meter base 19. One end of the meter rod 17 is connected to the fixing fixture 16, and the other end of the meter rod 17 is connected to the magnetic meter base 19 through the rotating clamp 18.

[0037] The test host is installed on the traction sheave frame through a magnetic device, which can realize the rapid installation of the detection device and the installation operation is more convenient. The height of the test host can be adjusted by the dial rod and the rotary clamp, so that the displacement sensor can be embedded in the traction sheave groove, thereby meeting the detection requirements of the traction sheave groove depth wear.

[0038] The speed measuring device includes a speed measuring rod 20, an encoder 21 and a magnetic roller 22. One end of the speed measuring rod 20 is installed on the side of the fixing fixture 16 through an M5*25 bolt 23 and an M5 locking nut 24. The encoder 21 is installed on the other end of the speed measuring rod 20. The encoder 21 is connected to the magnetic roller 22, and the encoder 21 is electrically connected to the aviation plug 15 through a wire.

[0039] like Figure 7 As shown, when the traction machine wheel groove depth wear detection device of the present invention is used: the device is installed on the traction sheave frame 25 through the magnetic attraction device, and according to the traction sheave groove spacing, the outer shell 1 and the inner shell 2 are pulled to slide, so that the internal telescopic connecting rod is telescopically adjusted, and then the distance between the displacement sensors 10 is adjusted so that the test head 13 adapts to the traction sheave groove spacing, the rotating clamp 18 and the meter rod 17 are adjusted, and then the position of the magnetic meter base 19 is adjusted so that the test head 13 is embedded in the traction sheave groove, and under the thrust of the thrust spring inside the displacement sensor 10, the test head 13 is always in contact with the traction sheave groove. The wheel grooves are in contact with each other, and the magnetic roller 22 is in contact with the outer ring of the traction sheave 26, so that the magnetic roller 22 rotates with the rotation of the traction sheave 26. The aviation plug 15 is connected to the host computer through a wire. After the traction sheave 26 has been working for a long time, the test head 13 is controlled to always contact and squeeze with the wheel groove of the traction sheave 26 under the pressure of the thrust spring, and then the test rod 11 moves upward. The displacement sensor 10 transmits the test data to the host computer for display. At the same time, the encoder 21 continuously uploads the position information of the traction sheave 26 to the host computer for display, thereby accurately judging the wear position of the traction sheave.

[0040] The utility model discloses a traction machine wheel groove depth wear detection device, which can monitor the wear condition of the traction sheave groove in real time through a displacement sensor, thereby judging the wear amount of the traction sheave groove, and can accurately find the wear position of the traction sheave groove through real-time positioning by an encoder, and at the same time transmit the detection data to the host computer for processing, so as to facilitate the staff to carry out timely maintenance and eliminate safety hazards, and provide a reliable data reference for ensuring the normal and safe operation of the elevator, and has the characteristics of high detection efficiency, high detection accuracy, good detection effect, etc., and has a wider range of applications.

[0041] The above content is a further detailed description of the present invention in conjunction with the preferred technical solution, and the specific implementation of the present invention cannot be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered as within the scope of protection of the present invention.

Claims

1. A traction machine wheel groove depth wear detection device, characterized by: The invention comprises a test host, a magnetic device is installed at the lower end of the test host, a speed measuring device is installed on one side of the test host, the test host comprises an outer shell and a hollow inner shell slidably arranged inside the outer shell, a spacing adjustment component is arranged in the inner cavity of the inner shell, the spacing adjustment component comprises multiple mounting plates and telescopic connecting rods, the upper end of the mounting plate is hinged to the telescopic connecting rod through a first pin shaft, the lower end of the mounting plate is hinged to the telescopic connecting rod through a second pin shaft, a guide groove is opened at the lower end of the mounting plate, the second pin shaft is passed through the guide groove, and the two mounting plates at the end are respectively installed on the outer shell and the inner shell, a displacement sensor is installed on one side of the mounting plate, a test rod is provided at the upper end of the displacement sensor, the upper end of the test rod extends out of the inner shell and the outer shell, a test head is provided at the upper end of the test rod, and an aviation plug is installed on the outer shell, and the aviation plug is electrically connected to the displacement sensor through a wire.

2. The traction machine wheel groove depth wear detection device according to claim 1, characterized in that: The telescopic link includes multiple telescopic groups, which are hinged in sequence through a first pin and a second pin. The telescopic group includes two equal-length first links that are cross-hinged in the middle. The ends of the first links located at the outer ends are also hinged with second links respectively. The two equal-length second links are hinged to each other, and the length of the second link is less than the length of the first link.

3. The traction machine wheel groove depth wear detection device according to claim 2, characterized in that: The middle parts of the two first connecting rods in the telescopic group are cross-hinged through a third pin shaft, and avoidance grooves matching the third pin shaft are respectively provided on both sides of the mounting plate.

4. The traction machine wheel groove depth wear detection device according to claim 1, characterized in that: The magnetic device is installed at the lower end of the outer shell through a fixing fixture. The magnetic device includes magnetic components respectively installed on both sides of the fixing fixture. The magnetic components include a meter rod, a rotating clamp and a magnetic meter base. One end of the meter rod is connected to the fixing fixture, and the other end of the meter rod is connected to the magnetic meter base through the rotating clamp.

5. The traction machine wheel groove depth wear detection device according to claim 4, characterized in that: The speed measuring device includes a speed measuring rod, an encoder and a magnetic roller. One end of the speed measuring rod is installed on a fixing fixture, and the other end of the speed measuring rod is installed with an encoder. The encoder is connected to the magnetic roller, and the encoder is electrically connected to the aviation plug through a wire.

6. The traction machine wheel groove depth wear detection device according to claim 5, characterized in that: One end of the speed measuring rod is mounted on a fixing fixture via a bolt and a locking nut.

7. The traction machine wheel groove depth wear detection device according to claim 1, characterized in that: The outer shell and the inner shell are both long box structures. Both the outer shell and the inner shell have open ends. The open end of the outer shell and the open end of the inner shell are connected in a sliding nesting manner.

8. The traction machine wheel groove depth wear detection device according to claim 7, characterized in that: The outer shell includes a first outer shell and a second outer shell. The first outer shell and the second outer shell are symmetrically mounted by bolts. The first outer shell and the second outer shell each have an opening.

9. The traction machine wheel groove depth wear detection device according to claim 7, characterized in that: The inner shell includes a first inner shell and a second inner shell. The first inner shell and the second inner shell are symmetrically connected by bolts. The first inner shell and the second inner shell each have an opening.

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