A device and method for measuring torque value of tensioning wheel for elevator

Abstract

The present invention discloses a torque value measuring device for an elevator tensioning wheel and a measuring method thereof, and relates to the field of torque value measurement. In order to solve the problem that the prior art is not practical, and the measuring device is connected to the tensioning wheel for a long time, which easily causes inaccurate torque value measurement. A torque value measuring device for an elevator tensioning wheel comprises an elevator shaft, a sliding mechanism and a power mechanism are fixed at the bottom of the elevator shaft, the sliding mechanism is arranged on the left side of the power mechanism, a movable plate is movably installed on the sliding mechanism, a torque value measuring mechanism is fixedly installed on the upper surface of the movable plate, and a tensioning rope is installed on the power mechanism. The torque value measuring device for an elevator tensioning wheel of the present invention is simple to operate, and by moving the movable plate, it is convenient to measure the torque value of the tensioning wheel at any time, thereby ensuring the normal operation of the torque value measuring mechanism, and can better analyze the torque output by the tensioning wheel and the reasonable range of the required torque, thereby improving the accuracy of the torque value measurement data.

Description

Technical Field

[0001] The invention relates to the field of torque value measurement, and in particular to a torque value measurement device for an elevator tensioning wheel and a measurement method thereof. Background Art

[0002] The tensioner is a follower wheel that presses on the belt in order to change the wrap angle of the pulley or control the tension of the belt. It is a tensioning device for belt transmission. When the center distance of the belt cannot be adjusted, the tensioner can be used to tension the belt. The tensioner in the elevator pit plays the role of tensioning and protecting the elevator, making the elevator stable when going up and down. Its importance is self-evident. The utility model application CN202022872751.6 discloses an elevator tensioner torque value detection device. Through limit pins, threaded rods, torsion blocks, baffles, springs, trapezoidal blocks, limit rods, springs, etc., the torsion block is twisted to drive the threaded rod to move in the inner circle of the limit pin. The movement of the threaded rod can drive the baffle, spring and trapezoidal block to move. The movement of the trapezoidal block can prompt the two limit rods to move in the inner circle of the limit pin shell, thereby facilitating the disassembly of the detection device and facilitating the detection of the torque value of the elevator tensioning wheel. However, when the device is in use, since the device cannot move, it can only be connected to the tensioning wheel to realize the measurement of the torque value of the tensioning wheel. It is not practical. Moreover, the measuring device is connected to the tensioning wheel for a long time, which may easily cause inaccurate torque value measurement and affect the normal use of the device. Summary of the invention

[0003] The purpose of the present invention is to provide a torque value measuring device for an elevator tensioning wheel and a measuring method thereof. By moving the torque value measuring mechanism to the power mechanism and inserting the second connecting port into the first connecting port, the operation is simple and convenient for measuring the torque value of the tensioning wheel at any time. The setting of the starting switch can not only start the torque value measuring mechanism, but also determine whether the second connecting port is inserted into the first connecting port, thereby ensuring the normal operation of the torque value measuring mechanism. The rotary encoder is used to detect the number of circles, angle and rotation speed of the tensioning wheel, which can better analyze the torque output by the tensioning wheel and the reasonable range of the required torque. The torque sensor arranged inside the transmission mechanism can read the torque output by the tensioning wheel in real time, thereby improving the accuracy of the torque value measurement data, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A device for measuring the torque value of an elevator tensioning wheel comprises an elevator shaft and a tensioning rope. A sliding mechanism and a power mechanism are fixed to the bottom of the elevator shaft. The sliding mechanism is arranged on the left side of the power mechanism. A movable plate is movably installed on the sliding mechanism. A torque value measuring mechanism is fixedly installed on the upper surface of the movable plate. A tensioning rope is installed on the power mechanism. The sliding mechanism, the power mechanism and the torque value measuring mechanism are all connected to an external control mechanism.

[0006] Furthermore, the sliding mechanism includes a connecting rod, a sliding rail, a slider and a moving mechanism. The sliding rails are fixed on both sides of the bottom of the elevator shaft. The slider is slidably installed on the sliding rails. A connecting rod is fixed on the side of the slider away from the sliding rail. The connecting rod is fixed on the lower surface of the movable plate. The moving mechanism is installed between the two sets of sliding rails.

[0007] Furthermore, the moving mechanism includes a mounting plate, a rotating shaft, a gear, a first motor and a rack. The first motor is installed on an outer wall of one side of the mounting plate. The output end of the first motor is connected to the rotating shaft. The rotating shaft is rotatably mounted on the inner wall of the mounting plate. A gear is fixed on the rotating shaft, and the gear is meshed with the rack.

[0008] Furthermore, two mounting plates are provided, the two mounting plates are symmetrically fixed at the bottom of the elevator shaft, the rack is fixed to the lower surface of the movable plate, and limit blocks are provided on both sides of the rack.

[0009] Furthermore, the power mechanism includes a second motor, a tensioning wheel, a fixing, a first connecting port and a transmission shaft, the second motor is installed on the outside of the fixing, the output end of the second motor passes through the fixing and is connected to one end of the transmission shaft, a tensioning wheel is installed on the transmission shaft, and the other end of the transmission shaft passes through the fixing and is connected to the first connecting port.

[0010] Furthermore, the torque value measuring mechanism includes a transmission mechanism, a mounting frame, a rotary encoder, a supporting frame, a connecting piece, a second connecting port, a starting switch and a housing. The mounting frame is fixed to the upper surface of the movable plate, the housing is fixedly mounted on the mounting frame, the transmission mechanism is installed in the housing, the mounting frame is installed on the left side of the transmission mechanism, the rotary encoder is installed on the mounting frame, a connecting piece is provided on the right side of the transmission mechanism, the starting switch is provided on the connecting piece, and a second connecting port is provided at the end of the connecting piece away from the transmission mechanism.

[0011] Furthermore, the transmission mechanism includes a first coupling, a torque sensor, a second coupling and a connecting shaft. A connecting shaft is provided on the outer side of the first coupling, the connecting head of the rotary encoder is fixed at the middle of the connecting shaft, a torque sensor is installed on one end of the first coupling away from the connecting shaft, and a second coupling is installed on the side of the torque sensor away from the first coupling.

[0012] Furthermore, the positions of the first connection port and the second connection port correspond to each other, and the size of the second connection port is slightly smaller than that of the first connection port, and a reducer is installed at the output end of the second motor.

[0013] The present invention provides another solution: a method for measuring the torque value of an elevator tensioning wheel, comprising the following steps:

[0014] Step 1: Start the second motor through an external controller. The output end of the second motor is connected to the reducer to input torque to the entire device. The speed of rotation of the second motor is then adjusted through the reducer, thereby adjusting the rotation speed of the tensioning wheel so that the tensioning wheel starts working.

[0015] Step 2: Start the first motor through an external controller to rotate the rotating shaft, drive the gear to rotate, and then drive the rack to move, adjust the position of the movable plate, move the torque value measuring mechanism to the power mechanism, and insert the second connecting port into the first connecting port. When the second connecting port is in close contact with the first connecting port, squeeze the start switch to start the torque value measuring mechanism to measure the torque value of the tensioning wheel.

[0016] Step 3: Start the rotary encoder through the external controller. When the tensioning wheel rotates, it drives the transmission mechanism to rotate. When the transmission mechanism rotates, the number of circles, angle and rotation speed of the tensioning wheel are detected. These values ​​are then combined with the data from the torque sensor to analyze the torque value of the tensioning wheel, and the analysis results are fed back to the external controller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. A torque value measuring device for an elevator tensioning wheel of the present invention starts a first motor through an external controller, so that the gear rotates to drive the rack to move, adjusts the position of the movable plate, moves the torque value measuring mechanism to the power mechanism, and inserts the second connecting port into the first connecting port. The operation is simple. By moving the movable plate, the torque value of the tensioning wheel can be measured at any time. The setting of the starting switch can not only start the torque value measuring mechanism, but also determine whether the second connecting port is inserted into the first connecting port, thereby ensuring the normal operation of the torque value measuring mechanism.

[0019] 2. A device for measuring the torque value of an elevator tensioning wheel of the present invention starts a rotary encoder through an external controller, detects the number of revolutions, angle and rotation speed of the tensioning wheel when the transmission mechanism rotates, and then combines these values ​​with the data of the torque sensor to analyze the torque value of the tensioning wheel, and feeds the analysis result back to the external controller, so as to better analyze the torque output by the tensioning wheel and the reasonable range of the required torque. The torque sensor arranged inside the transmission mechanism can read the torque output by the tensioning wheel in real time, thereby improving the accuracy of the torque value measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a device for measuring torque value of an elevator tensioning wheel according to the present invention;

[0021] Figure 2 It is a partial structural schematic diagram of a device for measuring torque value of an elevator tensioning wheel of the present invention;

[0022] Figure 3 A schematic diagram of a sliding mechanism of a device for measuring torque value of an elevator tensioning wheel according to the present invention;

[0023] Figure 4 A schematic diagram of a moving mechanism of a device for measuring torque value of an elevator tensioning wheel according to the present invention;

[0024] Figure 5 A schematic diagram of a power mechanism of a device for measuring torque value of an elevator tensioning wheel according to the present invention;

[0025] Figure 6 A schematic diagram of a torque value measuring mechanism of a torque value measuring device for an elevator tensioning wheel of the present invention;

[0026] Figure 7 The present invention is a schematic diagram of a transmission mechanism of a device for measuring the torque value of an elevator tensioning wheel.

[0027] In the figure: 1. elevator shaft; 2. tensioning rope; 3. movable plate; 4. sliding mechanism; 41. connecting rod; 42. slide rail; 43. slider; 44. moving mechanism; 441. mounting plate; 442. rotating shaft; 443. gear; 444. first motor; 445. rack; 446. limit block; 5. power mechanism; 51. second motor; 52. tensioning wheel; 53. fixing member; 54. first connecting port; 55. transmission shaft; 6. torque value measuring mechanism; 61. transmission mechanism; 611. first coupling; 612. torque sensor; 613. second coupling; 614. connecting shaft; 62. mounting frame; 63. rotary encoder; 64. support frame; 65. connecting member; 66. second connecting port; 67. starting switch; 68. housing. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to solve the technical problem that the existing measuring device cannot be moved and can only be connected to the tension wheel to measure the torque value of the tension wheel, which is not practical, and the measuring device is connected to the tension wheel for a long time, which easily causes inaccurate torque value measurement and affects the normal use of the device, please refer to Figure 1-Figure 7 , this embodiment provides the following technical solutions:

[0030] A device for measuring the torque value of an elevator tensioning wheel comprises an elevator shaft 1 and a tensioning rope 2. A sliding mechanism 4 and a power mechanism 5 are fixed at the bottom of the elevator shaft 1. The sliding mechanism 4 is arranged on the left side of the power mechanism 5. A movable plate 3 is movably installed on the sliding mechanism 4. A torque value measuring mechanism 6 is fixedly installed on the upper surface of the movable plate 3. The tensioning rope 2 is installed on the power mechanism 5. The sliding mechanism 4, the power mechanism 5 and the torque value measuring mechanism 6 are all connected to an external control mechanism. The power mechanism 5 comprises a second motor 51, a tensioning wheel 52, a fixing member 53, a first connecting port 54 and a transmission shaft 55. The second motor 51 is installed on the outside of the fixing member 53. The output end of the second motor 51 passes through the fixing member 53 and is connected to one end of the transmission shaft 55. The tensioning wheel 52 is installed on the transmission shaft 55. The other end of the transmission shaft 55 passes through the fixing member 53 and is connected to the first connecting port 54.

[0031] The sliding mechanism 4 includes a connecting rod 41, a slide rail 42, a slider 43 and a moving mechanism 44. The slide rails 42 are fixed on both sides of the bottom of the elevator shaft 1. The slider 43 is slidably installed on the slide rails 42. The side of the slider 43 away from the slide rails 42 is fixed with a connecting rod 41. The connecting rod 41 is fixed to the lower surface of the movable plate 3. The moving mechanism 44 is installed between the two sets of slide rails 42. The moving mechanism 44 includes a mounting plate 441, a rotating shaft 442, a gear 443, a first motor 444 and a rack 445. A first motor 444 is installed on the outer wall of one side of the plate 441, and the output end of the first motor 444 is connected to the rotating shaft 442. The rotating shaft 442 is rotatably installed on the inner wall of the mounting plate 441. A gear 443 is fixed on the rotating shaft 442, and the gear 443 is engaged with the rack 445. There are two mounting plates 441 in total. The two mounting plates 441 are symmetrically fixed at the bottom of the elevator shaft 1. The rack 445 is fixed on the lower surface of the movable plate 3, and limit blocks 446 are provided on both sides of the rack 445.

[0032] Specifically, when it is necessary to measure the torque value of the tensioning wheel 52, the first motor 444 is started through an external controller, so that the gear 443 rotates to drive the rack 445 to move, adjust the position of the movable plate 3, move the torque value measuring mechanism 6 to the power mechanism 5, and insert the second connecting port 66 into the first connecting port 54. When the second connecting port 66 is in close contact with the first connecting port 54, squeeze the starting switch 67 to start the torque value measuring mechanism 6 to measure the torque value of the tensioning wheel 52. The setting of the starting switch 67 can not only start the torque value measuring mechanism 6, but also determine whether the second connecting port 66 is inserted into the first connecting port 54, thereby ensuring the normal operation of the torque value measuring mechanism 6. When the torque value measurement is not needed, control the first motor 444 to reverse so that the torque value measuring mechanism 6 is away from the power mechanism 5.

[0033] The torque value measuring mechanism 6 includes a transmission mechanism 61, a mounting frame 62, a rotary encoder 63, a support frame 64, a connecting piece 65, a second connecting port 66, a starting switch 67 and a housing 68. The mounting frame 62 is fixed to the upper surface of the movable plate 3, the housing 68 is fixedly mounted on the mounting frame 62, the transmission mechanism 61 is mounted in the housing 68, the mounting frame 62 is mounted on the left side of the transmission mechanism 61, the rotary encoder 63 is mounted on the mounting frame 62, the connecting piece 65 is provided on the right side of the transmission mechanism 61, the starting switch 67 is provided on the connecting piece 65, the second connecting port 66 is provided at one end of the connecting piece 65 away from the transmission mechanism 61, and the transmission mechanism 6 The motor 1 comprises a first coupling 611, a torque sensor 612, a second coupling 613 and a connecting shaft 614. The connecting shaft 614 is arranged on the outer side of the first coupling 611. The connecting head of the rotary encoder 63 is fixed to the middle part of the connecting shaft 614. The torque sensor 612 is installed on the end of the first coupling 611 away from the connecting shaft 614. The second coupling 613 is installed on the side of the torque sensor 612 away from the first coupling 611. The positions of the first connecting port 54 and the second connecting port 66 correspond to each other. The size of the second connecting port 66 is slightly smaller than that of the first connecting port 54. A reducer is installed on the output end of the second motor 51.

[0034] Specifically, the rotary encoder 63 is started by an external controller to detect the number of revolutions, angle and rotation speed of the tensioning wheel 52 when the transmission mechanism 61 rotates. These values ​​are then combined with the data of the torque sensor 612 to analyze the torque value of the tensioning wheel 52, and the analysis results are fed back to the external controller. This allows for a better analysis of the torque output by the tensioning wheel 52 and the reasonable range of the required torque. The torque sensor 612 disposed inside the transmission mechanism 61 can read the torque output by the tensioning wheel 52 in real time, thereby improving the accuracy of the torque value measurement data.

[0035] The present invention provides another solution: a method for measuring the torque value of an elevator tensioning wheel, comprising the following steps:

[0036] Step 1: Start the second motor 51 through an external controller. The output end of the second motor 51 is connected to the reducer to input torque to the entire device. Then the speed of rotation of the second motor 51 is adjusted through the reducer, and then the rotation speed of the tensioning wheel 52 is adjusted, so that the tensioning wheel 52 starts to work.

[0037] Step 2: Start the first motor 444 through an external controller to rotate the rotating shaft 442, drive the gear 443 to rotate, and then drive the rack 445 to move, adjust the position of the movable plate 3, move the torque value measuring mechanism 6 to the power mechanism 5, and insert the second connecting port 66 into the first connecting port 54. When the second connecting port 66 is in close contact with the first connecting port 54, squeeze the starting switch 67 to start the torque value measuring mechanism 6 to measure the torque value of the tensioning wheel 52.

[0038] Step three: Start the rotary encoder 63 through the external controller. When the tensioning wheel 52 rotates, it drives the transmission mechanism 61 to rotate. When the transmission mechanism 61 rotates, the number of circles, angle and rotation speed of the tensioning wheel 52 are detected. These values ​​are then combined with the data from the torque sensor 612 to analyze the torque value of the tensioning wheel 52, and the analysis results are fed back to the external controller.

[0039] In summary, in the present invention, when the torque value of the tensioning wheel 52 needs to be measured, the first motor 444 is started by an external controller, so that the gear 443 rotates to drive the rack 445 to move, the position of the movable plate 3 is adjusted, the torque value measuring mechanism 6 is moved to the power mechanism 5, and the second connecting port 66 is inserted into the first connecting port 54, and the torque value measuring mechanism 6 is started by squeezing the starting switch 67 to measure the torque value of the tensioning wheel 52. The setting of the starting switch 67 can not only start the torque value measuring mechanism 6, but also determine whether the second connecting port 66 is inserted into the first connecting port 54. The normal operation of the torque value measuring mechanism 6 is ensured in the connection port 54. The rotary encoder 63 is started by an external controller. When the transmission mechanism 61 rotates, the number of revolutions, angle and rotation speed of the tensioning wheel 52 are detected. These values ​​are then combined with the data of the torque sensor 612 to analyze the torque value of the tensioning wheel 52. The analysis result is fed back to the external controller, which can better analyze the torque output by the tensioning wheel 52 and the reasonable range of the required torque. The torque sensor 612 arranged inside the transmission mechanism 61 can read the torque output by the tensioning wheel 52 in real time, thereby improving the accuracy of the torque value measurement data.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for measuring the torque value of an elevator tensioning wheel, comprising an elevator shaft (1) and a tensioning rope (2), characterized in that: A sliding mechanism (4) and a power mechanism (5) are fixed at the bottom of the elevator shaft (1); the sliding mechanism (4) is arranged on the left side of the power mechanism (5); a movable plate (3) is movably mounted on the sliding mechanism (4); a torque value measuring mechanism (6) is fixedly mounted on the upper surface of the movable plate (3); a tensioning rope (2) is mounted on the power mechanism (5); the sliding mechanism (4), the power mechanism (5) and the torque value measuring mechanism (6) are all connected to an external control mechanism; The torque value measuring mechanism (6) comprises a transmission mechanism (61), a mounting frame (62), a rotary encoder (63), a support frame (64), a connecting member (65), a second connecting port (66), a starting switch (67) and a housing (68); the mounting frame (62) is fixed to the upper surface of the movable plate (3); the housing (68) is fixedly mounted on the mounting frame (62); the transmission mechanism (61) is mounted in the housing (68); the mounting frame (62) is mounted on the left side of the transmission mechanism (61); the rotary encoder (63) is mounted on the mounting frame (62); the connecting member (65) is provided on the right side of the transmission mechanism (61); the starting switch (67) is provided on the connecting member (65); and the second connecting port (66) is provided at one end of the connecting member (65) away from the transmission mechanism (61); The transmission mechanism (61) comprises a first coupling (611), a torque sensor (612), a second coupling (613) and a connecting shaft (614); a connecting shaft (614) is provided on the outer side of the first coupling (611); a connector of the rotary encoder (63) is fixed to the middle of the connecting shaft (614); a torque sensor (612) is installed on one end of the first coupling (611) away from the connecting shaft (614); and a second coupling (613) is installed on the side of the torque sensor (612) away from the first coupling (611); The sliding mechanism (4) comprises a connecting rod (41), a slide rail (42), a slider (43) and a moving mechanism (44); the slide rail (42) is fixed on both sides of the bottom of the elevator shaft (1); the slider (43) is slidably mounted on the slide rail (42); a connecting rod (41) is fixed on the side of the slider (43) away from the slide rail (42); the connecting rod (41) is fixed on the lower surface of the movable plate (3); and the moving mechanism (44) is installed between the two sets of slide rails (42).

2. The device for measuring the torque value of an elevator tensioning pulley according to claim 1, characterized in that: The moving mechanism (44) comprises a mounting plate (441), a rotating shaft (442), a gear (443), a first motor (444) and a rack (445); the first motor (444) is mounted on an outer wall of one side of the mounting plate (441); the output end of the first motor (444) is connected to the rotating shaft (442); the rotating shaft (442) is rotatably mounted on the inner wall of the mounting plate (441); a gear (443) is fixed on the rotating shaft (442); and the gear (443) is meshed with the rack (445).

3. The device for measuring the torque value of an elevator tensioning pulley according to claim 2, characterized in that: Two mounting plates (441) are provided in total. The two mounting plates (441) are symmetrically fixed at the bottom of the elevator shaft (1). The rack (445) is fixed on the lower surface of the movable plate (3). Limiting blocks (446) are provided on both sides of the rack (445).

4. The device for measuring torque value of an elevator tensioning pulley according to claim 1, characterized in that: The power mechanism (5) comprises a second motor (51), a tensioning wheel (52), a fixing member (53), a first connecting port (54) and a transmission shaft (55); the second motor (51) is mounted on the outside of the fixing member (53); the output end of the second motor (51) passes through the fixing member (53) and is connected to one end of the transmission shaft (55); the tensioning wheel (52) is mounted on the transmission shaft (55); and the other end of the transmission shaft (55) passes through the fixing member (53) and is connected to the first connecting port (54).

5. The device for measuring torque value of an elevator tensioning pulley according to claim 4, characterized in that: The positions of the first connection port (54) and the second connection port (66) correspond to each other, and the size of the second connection port (66) is slightly smaller than that of the first connection port (54). A reducer is installed at the output end of the second motor (51).

6. A method for measuring the torque value of an elevator tensioning wheel according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: starting the second motor (51) through an external controller, the output end of the second motor (51) is connected to a reducer for inputting torque to the entire device, and then adjusting the rotation speed of the second motor (51) through the reducer, thereby adjusting the rotation speed of the tension wheel (52), so that the tension wheel (52) starts to work; Step 2: Start the first motor (444) through an external controller to rotate the rotating shaft (442), drive the gear (443) to rotate, and then drive the rack (445) to move, adjust the position of the movable plate (3), move the torque value measuring mechanism (6) to the power mechanism (5), and insert the second connecting port (66) into the first connecting port (54). When the second connecting port (66) is in close contact with the first connecting port (54), squeeze the start switch (67) to start the torque value measuring mechanism (6) to measure the torque value of the tensioning wheel (52); Step 3: Start the rotary encoder (63) through the external controller. When the tensioning wheel (52) rotates, it drives the transmission mechanism (61) to rotate. When the transmission mechanism (61) rotates, the number of revolutions, angle and rotation speed of the tensioning wheel (52) are detected. These values ​​are then combined with the data of the torque sensor (612) to analyze the torque value of the tensioning wheel (52), and the analysis results are fed back to the external controller.

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