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 testing host, a magnetic attraction device is installed at the lower end of the testing host, a speed measuring device is installed on one side of the testing host, the testing host comprises a shell, a distance adjusting assembly is arranged in the shell, the distance adjusting assembly comprises a distance changing shaft, a guide rod, a positioning block and a plurality of sliding blocks, and the two ends of the distance changing shaft are rotationally installed on the shell; a plurality of spiral grooves are formed in the variable pitch shaft, the distance between every two adjacent spiral grooves is gradually increased from the starting ends of the spiral grooves to the tail ends of the spiral grooves, the end of the guide rod is fixedly sleeved with a positioning block, the guide rod is further slidably sleeved with a plurality of sliding blocks, and the sliding blocks are further slidably connected into the spiral grooves through guide pieces respectively. Displacement sensors are mounted on one side of the positioning block and one side of the sliding block, and testing heads are arranged at the upper ends of the displacement sensors. The traction sheave detection device can meet 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 present invention to achieve the above-mentioned purpose is: a traction machine wheel groove depth wear detection device, including 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 includes a shell, a spacing adjustment component is arranged in the shell, the spacing adjustment component includes a pitch shaft, a guide rod, a positioning block and a plurality of sliders, the two ends of the pitch shaft are rotatably mounted on the shell, and one end thereof extends out of the shell, the pitch shaft is provided with a plurality of spiral grooves arranged along the axial direction of the pitch shaft, and the spacing between two adjacent spiral grooves is from the starting end of the spiral groove to the end of the spiral groove Incrementally, guide rods are respectively provided at the upper and lower ends of the pitch-variable shaft, the ends of the guide rods are fixedly sleeved with positioning blocks, and a plurality of sliders are also slidably sleeved on the guide rods. The spacing between the positioning blocks and the adjacent sliders and the spacing between the sliders are equal, and the plurality of sliders are also slidably connected in the spiral grooves one by one through their respective guide members. A displacement sensor is installed on one side of the positioning block and the slider, and a test rod is provided at the upper end of the displacement sensor. The upper end of the test rod extends out of the shell through the strip hole on the top of the shell, and a test head is provided at the top of the test rod. An aviation plug is installed on the shell, and the aviation plug is electrically connected to the displacement sensor through a wire.

[0007] Furthermore, the magnetic device is installed at the lower end of the 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.

[0008] 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 the side of the shell, 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.

[0009] Furthermore, one end of the speed measuring rod is mounted on a lug plate on the side of the housing through a latch.

[0010] Furthermore, a knob is provided at one end of the pitch-changing shaft extending out of the housing, and a locking bolt for tightening the pitch-changing shaft is threaded onto the housing.

[0011] Furthermore, both ends of the pitch-variable shaft are mounted on the housing via bearings.

[0012] Furthermore, both ends of the guide rod are mounted on the housing.

[0013] Furthermore, the shell includes a bottom shell, and end covers are installed at both ends of the bottom shell by bolts, a first side cover is installed on one side of the two end covers, and an L-shaped second side cover is installed on the other side of the two end covers, and a strip hole is provided between the L-shaped second side cover and the first side cover for the test rod to pass through.

[0014] Furthermore, the aviation plug is installed on the bottom shell.

[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 can adjust the distance between each displacement sensor by setting a spacing adjustment component, so that the detection device can meet the detection requirements of traction wheels of different specifications. The variable pitch shaft spiral groove structure can ensure the equal distance adjustment between the displacement sensors. 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 This is a structural diagram of a traction machine wheel groove depth wear detection device of the present utility model.

[0020] Figure 2 This is a structural front view of the traction machine wheel groove depth wear detection device of the utility model.

[0021] Figure 3 The internal structure of the main engine is tested for the utility model of the traction machine wheel groove depth wear detection device Figure 1 .

[0022] Figure 4 The internal structure of the main engine is tested for the utility model of the traction machine wheel groove depth wear detection device Figure 2 .

[0023] Figure 5 This is a schematic diagram of the application of the traction machine wheel groove depth wear detection device of the present utility model.

[0024] In the figure: 1. Housing, 101. Bottom shell, 102. End cover, 103. First side cover, 104. Second side cover, 2. Pitch change shaft, 3. Guide rod, 4. Positioning block, 5. Slider, 6. Bearing, 7. Knob, 8. Locking bolt, 9. Spiral groove, 10. Guide, 11. Displacement sensor, 12. Test rod, 13. Test head, 14. Aviation plug, 15. Fixing fixture, 16. Meter rod, 17. Rotating clamp, 18. Magnetic meter base, 19. Speed ​​measuring rod, 20. Encoder, 21. Magnetic roller, 22. Latch, 23. Ear plate, 24. Traction sheave frame, 25. Traction sheave. Traction machine wheel groove depth wear detection device DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 1-4The device for detecting the depth wear of a traction machine wheel groove shown in the figure includes 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 includes a shell 1, a spacing adjustment component is arranged in the shell 1, the spacing adjustment component includes a pitch shaft 2, a guide rod 3, a positioning block 4 and a plurality of sliders 5, both ends of the pitch shaft 2 are rotatably mounted on the shell 1 through bearings 6, and one end thereof extends out of the shell 1 and is connected to a knob 7, a locking bolt 8 for tightening the pitch shaft 2 is screwed on the shell 1, a plurality of spiral grooves 9 arranged along the axial direction of the pitch shaft are provided on the pitch shaft 2, the spacing between two adjacent spiral grooves 9 increases from the starting end of the spiral groove to the end of the spiral groove, the starting ends of the plurality of spiral grooves 9 are all located on the same straight line, and the ends of the spiral grooves 9 are also Located on the same straight line; guide rods 3 are respectively provided at the upper and lower ends of the pitch variable shaft 2, and the two ends of the guide rod 3 are installed on the shell 1. The ends of the guide rod 3 are fixedly sleeved with the positioning block 4, and a plurality of sliders 5 are also slidably sleeved on the guide rod 3. The spacing between the positioning block 4 and the adjacent slider 5 and the sliders 5 are equal. The plurality of sliders 5 are also slidably connected in the spiral groove 9 through their respective guide members 10. A displacement sensor 11 is installed on one side of the positioning block 4 and the slider 5. A test rod 12 is provided at the upper end of the displacement sensor 11. The upper end of the test rod 12 extends out of the shell 1 through the strip hole at the top of the shell 1. A test head 13 is provided at the top of the test rod 12. An aviation plug 14 is installed on the shell 1, and the aviation plug 14 is electrically connected to the displacement sensor 11 through a wire.

[0027] The detection device can adjust the distance between each displacement sensor by setting a spacing adjustment component, so that the device can meet the detection requirements of traction wheels of different specifications. The variable pitch shaft spiral groove structure can ensure the equal distance adjustment between the displacement sensors. It has a simple structure, strong practicality and a wider range of applications.

[0028] The magnetic device is mounted on the lower end of the housing 1 via a fixing fixture 15. The magnetic device includes magnetic components mounted on either side of the fixing fixture 15. The magnetic components include a meter rod 16, a rotating clamp 17, and a magnetic meter base 18. One end of the meter rod 16 is connected to the fixing fixture 15, and the other end of the meter rod 16 is connected to the magnetic meter base 18 via the rotating clamp 17. The test host is mounted on the traction sheave frame 24 via the magnetic device, enabling rapid installation of the detection device and making installation more convenient. The meter rod 16 and rotating clamp 17 allow the height of the test host to be adjusted, allowing the displacement sensor 11 to fit into the traction sheave groove, thereby meeting the requirements for detecting the depth of wear in the traction sheave groove.

[0029] The speed measuring device includes a speed measuring rod 19, an encoder 20 and a magnetic roller 21. The encoder 20 model is K18. One end of the speed measuring rod 19 is installed on the ear plate 23 on the side of the shell 1 through a pin 22. The encoder 20 is installed on the other end of the speed measuring rod 19. The encoder 20 is connected to the magnetic roller 21. The encoder 20 is electrically connected to the aviation plug 14 through a wire.

[0030] Preferably, the shell 1 includes a bottom shell 101, and end covers 102 are installed at both ends of the bottom shell 101 by bolts, a first side cover 103 is installed on one side of the two end covers 102, and an L-shaped second side cover 104 is installed on the other side of the two end covers 102. There is a strip hole between the L-shaped second side cover 104 and the first side cover 103 for the test rod 12 to pass through, and the aviation plug 14 is installed on the bottom shell 101.

[0031] like Figure 5 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 24 through the magnetic attraction device, and according to the traction sheave groove spacing, the displacement sensor 11 installed on the positioning block 4 is used as a reference, and the knob 7 is turned to drive the pitch shaft 2 to rotate, and the pitch shaft 2 drives the multiple sliders 5 to move relative to the positioning block 4, so that the spacing between the multiple sliders 5 and the positioning block 4 is close to or away from each other, so as to achieve equal distance adjustment of each displacement sensor 11, thereby enabling the test head 13 to adapt to the spacing of the traction sheave groove, adjusting the rotating clamp 17 and the meter rod 16, and then adjusting the position of the magnetic meter base 18, so that the test head 13 is embedded in the traction sheave groove, and in the displacement Under the thrust of the thrust spring inside the sensor 11, the test head 13 is always in contact with the wheel groove of the traction sheave, and at the same time, the magnetic roller 21 is in contact with the outer ring of the traction sheave 25, so that the magnetic roller 21 rotates with the rotation of the traction sheave 25. The aviation plug 14 is connected to the host computer through a wire. After the traction sheave 25 has been working for a long time, the pressure of the thrust spring drives the test head 13 to always contact and squeeze the wheel groove of the traction sheave 25, and then the test rod 12 moves upward. The displacement sensor 11 transmits the test data to the host computer for display. At the same time, the encoder 20 continuously uploads the traction sheave speed information to the host computer for calculation, and then accurately determines the wear position of the traction sheave groove.

[0032] 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 upper 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, wide application range, etc.

[0033] 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 a shell, a spacing adjustment component is arranged in the shell, the spacing adjustment component comprises a pitch shaft, a guide rod, a positioning block and a plurality of sliders, both ends of the pitch shaft are rotatably mounted on the shell, and one end thereof extends out of the shell, a plurality of spiral grooves arranged along the axial direction of the pitch shaft are opened on the pitch shaft, the spacing between adjacent spiral grooves increases from the starting end of the spiral groove to the end of the spiral groove, and guide rods are respectively arranged at the upper and lower ends of the pitch shaft. The end of the guide rod is fixedly sleeved with a positioning block, and a plurality of sliders are slidably sleeved on the guide rod. The spacing between the positioning block and the adjacent sliders and the sliders is equal. The plurality of sliders are also slidably connected in the spiral groove one by one through their respective guide members. A displacement sensor is installed on one side of the positioning block and the slider. A test rod is provided at the upper end of the displacement sensor. The upper end of the test rod extends out of the shell through the strip hole at the top of the shell. A test head is provided at the top of the test rod. An aviation plug is installed on the 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 magnetic device is installed at the lower end of the 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.

3. The traction machine wheel groove depth wear detection device according to claim 1, 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 the side of the shell, 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.

4. The traction machine wheel groove depth wear detection device according to claim 3, characterized in that: One end of the speed measuring rod is mounted on the ear plate on the side of the shell through a latch.

5. The traction machine wheel groove depth wear detection device according to claim 1, characterized in that: A knob is provided on one end of the pitch-changing shaft extending out of the housing, and a locking bolt for tightening the pitch-changing shaft is threadedly connected to the housing.

6. The traction machine wheel groove depth wear detection device according to claim 1, characterized in that: Both ends of the pitch-variable shaft are mounted on the housing through bearings.

7. The traction machine wheel groove depth wear detection device according to claim 1, characterized in that: Both ends of the guide rod are mounted on the housing.

8. The traction machine wheel groove depth wear detection device according to claim 1, characterized in that: The shell includes a bottom shell, and end covers are installed at both ends of the bottom shell by bolts. A first side cover is installed on one side of the two end covers, and an L-shaped second side cover is installed on the other side of the two end covers. A strip hole is provided between the L-shaped second side cover and the first side cover for the test rod to pass through.

9. The traction machine wheel groove depth wear detection device according to claim 8, characterized in that: The aviation plug is installed on the bottom shell.

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