A kind of elevator balance coefficient testing device

Abstract

The present invention belongs to the technical field of elevator detection, and discloses an elevator balance coefficient test device; it comprises a base, a universal rod installed on the base, a plate installed at one end of the universal rod, a speed meter body arranged on the top of the plate, and a speed measuring wheel rotatably connected to the speed meter body through a connecting shaft. The present invention sets two speed measuring wheels, and when measuring the speed of the wire rope, the wire rope is located between the two speed measuring wheels, and the two speed measuring wheels are adjusted to move toward the middle by a pre-pressing component, so that the two speed measuring wheels simultaneously press the wire rope to measure its speed, and the two speed measuring wheels can share the vibration and fluctuation of the wire rope, thereby reducing the error that may be generated by a single speed measuring wheel, and when one of the speed measuring wheels has a problem and cannot measure, the other speed measuring wheel can still provide effective measurement data, and by comparing the measurement data of the two speed measuring wheels, some systematic errors and random errors can be eliminated, thereby improving the measurement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator detection, and more specifically, to a device for testing the balance coefficient of an elevator. Background Art

[0002] The balance coefficient of the elevator, that is, the amount by which the rated load and the car mass are balanced by the counterweight or balancing weight, is one of the most important technical parameters of a traction elevator. A reasonable balance coefficient value is a prerequisite for ensuring the normal operation of a traction elevator. The installation, commissioning and acceptance inspection of each traction elevator must be subject to a balance coefficient test. The test is usually carried out using a special test device. The test device uses the power method to measure the elevator balance coefficient. Through real-time measurement of the traction machine's operating power and the traction machine's wire rope speed, a mathematical model for solving the elevator balance coefficient is established based on the physical relationship derived from the elevator's no-load up and down running motor input power and the elevator's up and down running distance. The test device usually includes a power collector, a speed measuring device and a fixed support, a speed collector, a handheld terminal and related accessories.

[0003] The current speed measuring device usually includes a base, a universal rod, a speed meter and a speed wheel. The base is set near the wire rope. The universal rod is adjusted to make the speed wheel contact with the wire rope, and the pressure between the speed wheel and the wire rope is adjusted to ensure that the wire rope can drive the speed wheel to rotate. During the operation of the elevator, the wire rope drives the speed wheel to rotate. The speed meter can measure the running speed of the wire rope in real time and upload it to the system, so as to smoothly obtain the balance coefficient of the elevator.

[0004] However, the current speed measuring device has only a single speed measuring wheel to measure the wire rope. Since the wire rope will vibrate and shake during operation, errors may occur in the measurement with a single speed measuring wheel. If the wire rope has certain problems, such as twisting and uneven wear, the single speed measuring wheel cannot detect the movement of the wire rope. If the single speed measuring wheel fails or measures inaccurately during the measurement process, no valid data can be obtained. The measurement accuracy of a single speed measuring wheel is low, and the data obtained is relatively one-sided. The current speed measuring device cannot self-clean the speed measuring wheel. There are usually many lubricating substances on the wire rope. After the speed measuring wheel completes the measurement, the lubricating substance will also adhere to the surface of the speed measuring wheel. The speed measuring wheel needs to be cleaned before it can be stored. Summary of the invention

[0005] The present invention proposes an elevator balance coefficient testing device to solve the problems in the background technology that the current speed measuring device has only a single speed measuring wheel to measure the wire rope and the previous speed measuring device cannot self-clean the speed measuring wheel.

[0006] To achieve the above object, the present invention provides the following technical solution: an elevator balance coefficient test device, comprising a base, a universal rod installed on the base, a plate installed at one end of the universal rod, a speed meter body arranged on the top of the plate, and a speed measuring wheel rotatably connected to the speed meter body through a connecting shaft, wherein two speed meter bodies and two speed measuring wheels are provided and symmetrically arranged on the top of the plate, and the two speed measuring wheels are used to measure the speed of the wire rope at the same time, and further comprising:

[0007] A self-cleaning component is arranged on the speedometer body, and is used to clean the surface of the speed measuring wheel. The self-cleaning component includes two first rotating shafts, two take-up wheels and a cleaning belt. The two take-up wheels are respectively fixed to the outer walls of the first rotating shafts, and the cleaning belts are respectively wound and fixed to the outer walls of the two take-up wheels. The cleaning belt is used to run between the two take-up wheels to clean the surface of the speed measuring wheel.

[0008] Furthermore, the flat plate is provided with a pre-stressing assembly for making the two speed measuring wheels in close contact with the wire rope at the same time, the pre-stressing assembly includes a rotating shaft rotatably connected to the top of the flat plate, the top of the rotating shaft is fixedly connected to a first rotating block, the outer wall of the rotating shaft is fixedly connected to a circular gear, one side wall of the two speed measuring instrument bodies is fixedly connected to a rack meshing with the circular gear, the two speed measuring instrument bodies are slidably connected to the top of the flat plate, the outer wall of the rotating shaft is fixedly connected to a rubber disc, and the top of the flat plate is fixedly connected to a rubber seat in contact with the bottom of the rubber disc.

[0009] Furthermore, a detection component for detecting whether the speed measuring wheel and the wire rope are pre-stressed in place is provided in the speed measuring wheel, and the detection component includes an L-shaped channel opened in the speed measuring wheel, and a pressure column, an extrusion column, a display column and a movable column are slidably inserted in the L-shaped channel, and connecting rods are fixedly connected between the pressure column and the extrusion column and between the display column and the movable column. Two circular plates are fixedly connected in the L-shaped channel, and the connecting rod slides through the circular plates, and a first spring sleeved on the outside of the connecting rod is fixedly connected between one of the circular plates and the pressure column and between the other circular plate and the display column.

[0010] Furthermore, the self-cleaning component also includes two C-shaped shells arranged on both sides of the speed measuring wheel, a section of the cleaning belt is located outside the C-shaped shell, and the exposed section of the cleaning belt is used to move downward relative to the C-shaped shell, the two first rotating shafts are rotatably connected in the C-shaped shell, and two second rotating shafts are rotatably connected in the C-shaped shell, the cleaning belt passes through the surfaces of the two second rotating shafts, a motor is fixedly connected to the C-shaped shell, the output shaft of the motor is fixedly connected to one end of one of the first rotating shafts, the outer walls of the two first rotating shafts are fixedly connected to first pulleys, and the two first pulleys are connected by a first transmission belt.

[0011] Furthermore, a slider is fixedly connected to one side wall of the C-shaped shell, a connecting block is fixedly connected to one side wall of the speedometer body, an arc column is fixedly connected to one end of the connecting block, a through opening is opened in the middle of the slider, and the slider is slidably connected to the surface of the arc column through the through opening.

[0012] Furthermore, the arc column includes a cleaning section and an initial section. When the slider is located in the cleaning section, the exposed sections of the two cleaning belts are located between the two speed measuring wheels. When the slider is located in the initial section, the exposed sections of the two cleaning belts are located on both sides of the speed measuring wheel.

[0013] Furthermore, the speedometer body is provided with a locking assembly for locking the slider, the locking assembly includes a connecting plate fixedly connected to the speedometer body, the top of the connecting plate is rotatably connected to a worm, the top of the worm is fixedly connected to a second rotating block, the top of the connecting plate is fixedly connected to four first fixed plates, a third rotating shaft is rotatably connected between corresponding two of the first fixed plates, the outer wall of the third rotating shaft is fixedly connected to a worm wheel meshing with the worm, the outer wall of the third rotating shaft is fixedly connected to a rotating block, one end of the rotating block is fixedly connected to a U-shaped plate, and one of the U-shaped plates is sleeved on both side walls of the slider.

[0014] Furthermore, the C-shaped housing is provided with a driving assembly for driving the tachometer wheel to rotate, the driving assembly includes two fourth rotating shafts rotatably connected to the C-shaped housing, one of the fourth rotating shafts is fixedly connected to one end of one of the first rotating shafts, the outer walls of the fourth rotating shafts are fixedly connected to second pulleys, the two second pulleys are connected by a second transmission belt, a second fixed plate is fixedly connected to one side wall of the C-shaped housing, a rotating column is rotatably connected to the middle of the second fixed plate, and the top of the rotating column and one of the fourth rotating shafts are fixedly connected to the outer wall of the fourth rotating shaft. One end of the first bevel gear is fixedly connected to the first bevel gear that meshes with each other, and the bottom end of the rotating column is slidably inserted with an insert post, and the outer wall of the insert post is fixedly connected to the insert strip, and the bottom end of the rotating column is provided with a slot that matches the insert post and the insert strip, and the bottom end of the insert post is fixedly connected to the second bevel gear, and the two side walls of the second fixed plate are provided with a sliding groove, and a limit plate is slidably connected to the sliding groove, and the limit plate contacts with the bottom of the second bevel gear, and the two side walls of the second fixed plate are fixedly connected with rubber blocks that contact with the limit plate, and one side wall of the speed measuring wheel is fixedly connected with a bevel gear ring.

[0015] Furthermore, the C-shaped shell is provided with an anti-wrinkle component for keeping the cleaning belt from wrinkling, the anti-wrinkle component includes a telescopic sleeve fixedly connected to the inner walls on both sides of the C-shaped shell, one end of the telescopic sleeve is fixedly connected to a horizontal plate, a second spring mounted on the outside of the telescopic sleeve is fixedly connected between the horizontal plate and the inner wall of the C-shaped shell, one side wall of the horizontal plate is rotatably connected to two fifth rotating shafts, one end of the fifth rotating shaft is fixedly connected to a rotating wheel in contact with the cleaning belt.

[0016] The technical effects and advantages of an elevator balance coefficient testing device of the present invention are as follows:

[0017] (1) By setting up two tachometer wheels, when measuring the speed of the wire rope, the wire rope is located between the two tachometer wheels. The two tachometer wheels are adjusted to move toward the middle through the pre-load assembly so that the two tachometer wheels simultaneously press the wire rope to measure its speed. The two tachometer wheels can share the vibration and fluctuation of the wire rope, thereby reducing the error that may be caused by a single tachometer wheel, which helps to improve the stability and repeatability of the measurement. The two tachometer wheels can detect the movement of the two sides of the wire rope. If the speed difference between the two sides is large, it may indicate that the wire rope has problems such as twisting and uneven wear. When one of the tachometer wheels has a problem and cannot measure, the other tachometer wheel can still provide valid measurement data. By comparing the measurement data of the two tachometer wheels, some systematic errors and random errors can be eliminated, thereby improving the measurement accuracy.

[0018] (2) By setting a self-cleaning component, when the speed measuring wheel completes the speed measurement of the wire rope, the surface of the speed measuring wheel needs to be cleaned before it can be stored. The second rotating block is rotated to drive the worm to rotate. The worm drives the third rotating shaft and the rotating block to rotate through the worm gear. The rotating block drives the U-shaped plate to rotate, and the limit on the slider is released, so that the C-shaped shell slides on the arc column through the slider, and the exposed sections of the two cleaning belts are moved to the middle of the two speed measuring wheels. The two speed measuring wheels are driven to move toward the middle through the pre-pressing component, so that the speed measuring wheels contact the corresponding exposed sections of the cleaning belt. The motor is started to drive the two first rotating shafts to rotate. The first rotating shaft drives the belt reel to rotate, so that the exposed section of the cleaning belt cleans the surface of the speed measuring wheel, thereby achieving the purpose of automatic cleaning of the speed measuring wheel. Compared with manual cleaning, the present invention can clean the blind spot of the speed measuring wheel, and has better cleaning effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a first partial three-dimensional structure in the present invention;

[0021] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0022] Figure 4 It is a cross-sectional schematic diagram of the speed measuring wheel in the present invention;

[0023] Figure 5 It is a schematic diagram of a second partial three-dimensional structure in the present invention;

[0024] Figure 6 It is a cross-sectional schematic diagram of a C-shaped housing in the present invention;

[0025] Figure 7 It is a schematic diagram of the internal structure of the C-shaped shell in the present invention;

[0026] Figure 8 It is a schematic diagram of a third partial three-dimensional structure in the present invention;

[0027] Fig. 9 For the present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0028] Fig.10 For the present invention Figure 7 Enlarged schematic diagram at point C in the middle.

[0029] In the figure:

[0030] 1. Base; 2. Universal rod; 3. Flat plate; 4. Speedometer body; 5. Speed ​​wheel; 6. First rotary block; 7. Circular gear; 8. Rack; 9. Rubber disc; 10. Rubber seat; 11. L-shaped channel; 12. Pressure column; 13. Extrusion column; 14. Display column; 15. Moving column; 16. Connecting rod; 17. Circular plate; 18. First spring; 19. C-shaped housing; 20. First rotating shaft; 21. Take-up wheel; 22. Cleaning belt; 23. Second rotating shaft; 24. Motor; 25. First pulley; 26. First transmission belt; 27. Slider; 28. Connecting plate; 29. ​​Worm; 30. Second rotary block; 31 , first fixed plate; 32, third rotating shaft; 33, worm gear; 34, rotating block; 35, U-shaped plate; 36, fourth rotating shaft; 37, second pulley; 38, second transmission belt; 39, second fixed plate; 40, rotating column; 41, first bevel gear; 42, plug column; 43, plug strip; 44, second bevel gear; 45, limit plate; 46, rubber block; 47, bevel gear ring; 48, slide groove; 49, telescopic sleeve; 50, cross plate; 51, second spring; 52, fifth rotating shaft; 53, rotating wheel; 54, rotating shaft; 55, connecting block; 56, arc column; 5601, cleaning section; 5602, initial section. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1 - Fig.10, an elevator balance coefficient testing device, comprising a base 1, a universal rod 2 installed on the base 1, a plate 3 installed at one end of the universal rod 2, a speed meter body 4 arranged on the top of the plate 3, and a speed measuring wheel 5 rotatably connected to the speed meter body 4 through a connecting shaft, the speed meter body 4 and the speed measuring wheel 5 are both provided with two, and are symmetrically arranged on the top of the plate 3, the two speed measuring wheels 5 are used to measure the speed of the wire rope at the same time, and also includes:

[0033] A self-cleaning assembly is provided on the speedometer body 4, and is used to clean the surface of the speed measuring wheel 5. The self-cleaning assembly includes two first rotating shafts 20, two tape reels 21, and a cleaning belt 22. The two tape reels 21 are respectively fixed to the outer walls of the first rotating shafts 20, and the cleaning belt 22 is respectively wound and fixed to the outer walls of the two tape reels 21. The cleaning belt 22 is used to run between the two tape reels 21 to clean the surface of the speed measuring wheel 5.

[0034] When in use, the base 1 is set near the steel wire rope to be measured, and the positions of the two speed measuring wheels 5 are adjusted by the universal rod 2 according to the position of the steel wire rope, so that the steel wire rope is located between the two speed measuring wheels 5 and the steel wire rope is in contact with the two speed measuring wheels 5. The running speed of the steel wire rope is measured by the two speed measuring wheels 5. Setting two speed measuring wheels 5 can reduce the error that may be generated by a single speed measuring wheel 5, which is helpful to improve the stability and repeatability of the measurement. By comparing the measurement data of the two speed measuring wheels 5, some systematic errors and random errors can be eliminated, thereby improving the measurement accuracy. Accuracy. After the speed measuring wheel 5 completes the measurement, the lubricating substance on the wire rope will adhere to the surface of the speed measuring wheel 5. The surface of the speed measuring wheel 5 needs to be cleaned before being stored. By making the two cleaning belts 22 contact with the surface of the speed measuring wheel 5, the two first rotating shafts 20 rotate in the same direction, and the first rotating shafts 20 drive the two winding wheels 21 to rotate. The upper winding wheel 21 releases the cleaning belt 22, and the lower winding wheel 21 retracts the cleaning belt 22, so that the cleaning belt 22 moves downward in the vertical direction relative to the speed measuring wheel 5, so that the cleaning belt 22 cleans the speed measuring wheel 5.

[0035] Reference Figure 3The plate 3 is provided with a pre-stressing assembly for making the two speed measuring wheels 5 in close contact with the wire rope at the same time. The pre-stressing assembly includes a rotating shaft 54 ​​rotatably connected to the top of the plate 3. The top of the rotating shaft 54 ​​is fixedly connected to a first rotating block 6. The outer wall of the rotating shaft 54 ​​is fixedly connected to a circular gear 7. One side wall of the two speed measuring instrument bodies 4 is fixedly connected to a rack 8 meshing with the circular gear 7. The two speed measuring instrument bodies 4 are both slidably connected to the top of the plate 3. The outer wall of the rotating shaft 54 ​​is fixedly connected to a rubber disc 9. The plate 3 A rubber seat 10 in contact with the bottom of the rubber disc 9 is fixedly connected to the top; after the wire rope is placed between the two speed measuring wheels 5, it is necessary to first make the two speed measuring wheels 5 press-fit into contact with the wire rope, rotate the first rotary block 6, the first rotary block 6 drives the rotating shaft 54 ​​to rotate, the rotating shaft 54 ​​drives the circular gear 7 to rotate, the circular gear 7 drives the two racks 8 to rotate in opposite directions, the two racks 8 drive the two speed meter bodies 4 to move toward the middle, the speed meter body 4 drives the speed measuring wheels 5 to move toward the middle, so that the two speed measuring wheels 5 are press-fit into contact with the wire rope.

[0036] Reference Figure 4 , the speed measuring wheel 5 is provided with a detection component for detecting whether the speed measuring wheel 5 and the wire rope are pre-pressed in place, the detection component includes an L-shaped channel 11 opened in the speed measuring wheel 5, a pressure column 12, an extrusion column 13, a display column 14 and a moving column 15 are slidably inserted in the L-shaped channel 11, and a connecting rod 16 is fixedly connected between the pressure column 12 and the extrusion column 13 and between the display column 14 and the moving column 15. Two circular plates 17 are fixedly connected in the L-shaped channel 11, and the connecting rod 16 slides through the circular plates 17, and a first spring 18 sleeved on the outside of the connecting rod 16 is fixedly connected between one of the circular plates 17 and the pressure column 12 and between the other circular plate 17 and the display column 14; in the process of the two speed measuring wheels 5 pressing and contacting the wire rope, it is necessary to make the speed measuring wheel 5 have enough pressure on the wire rope so that the wire rope can drive The speed measuring wheel 5 rotates. In order to judge whether the speed measuring wheel 5 has enough pressure on the steel wire rope, during the movement of the speed measuring wheel 5 toward the middle steel wire rope, the steel wire rope can compress the pressure column 12. The pressure column 12 is pressed into the L-shaped channel 11. The pressure column 12 drives the extrusion column 13 to move through the connecting rod 16. The corresponding first spring 18 is compressed. The extrusion column 13 can compress the moving column 15. The moving column 15 drives the display column 14 to move out of the L-shaped channel 11 through the connecting rod 16. The corresponding first spring 18 is stretched. The greater the pressure of the speed measuring wheel 5 on the steel wire rope, the longer the pressure column 12 enters the L-shaped channel 11, and the longer the display column 14 leaves the L-shaped channel 11. A scale is set on the display column 14. The user can judge the length of the display column 14 leaving the L-shaped channel 11 according to the scale, thereby judging the pressure of the speed measuring wheel 5 on the steel wire rope.

[0037] Reference Figure 5 , Figure 6 and Figure 7The self-cleaning assembly also includes two C-shaped shells 19 arranged on both sides of the speed measuring wheel 5, a section of the cleaning belt 22 is located outside the C-shaped shell 19, and the exposed section of the cleaning belt 22 is used to move downward relative to the C-shaped shell 19, the two first rotating shafts 20 are rotatably connected in the C-shaped shell 19, and two second rotating shafts 23 are rotatably connected in the C-shaped shell 19, and the cleaning belt 22 passes through the surfaces of the two second rotating shafts 23. A motor 24 is fixedly connected to the C-shaped shell 19, and the output shaft of the motor 24 is fixedly connected to one end of one of the first rotating shafts 20. The outer walls of the two first rotating shafts 20 are fixedly connected to first pulleys 25, and the two first pulleys 25 are connected by a first transmission belt 26; when the surface of the speed measuring wheel 5 needs to be cleaned by the cleaning belt 22, the motor 24 is started, and the motor 24 drives one of the first rotating shafts 20 to rotate. The first rotating shaft 20 drives the other first rotating shaft 20 to rotate synchronously in the same direction through the first pulley 25 and the first transmission belt 26. The two first rotating shafts 20 drive the winding wheels 21 to rotate, the upper winding wheel 21 pays out the cleaning belt 22, and the lower winding wheel 21 rewinds the cleaning belt 22. The cleaning belt 22 runs around the two second rotating shafts 23, so that the exposed section of the cleaning belt 22 moves downward relative to the speed measuring wheel 5, and the exposed section of the cleaning belt 22 cleans the surface of the speed measuring wheel 5.

[0038] Reference Figure 5 and Figure 8 A slider 27 is fixedly connected to one side wall of the C-shaped shell 19, a connecting block 55 is fixedly connected to one side wall of the speed meter body 4, an arc column 56 is fixedly connected to one end of the connecting block 55, a through hole is opened in the middle of the slider 27, and the slider 27 is slidably connected to the surface of the arc column 56 through the through hole; when it is necessary to clean the surface of the speed measuring wheel 5, it is necessary to move the cleaning belts 22 on both sides between the two speed measuring wheels 5, so that the C-shaped shell 19 slides on the surface of the arc column 56 through the slider 27, and the C-shaped shell 19 can drive the exposed section of the cleaning belt 22 to move to the middle of the two speed measuring wheels 5. It is only necessary to drive the two speed measuring wheels 5 to move toward the middle through the pre-pressing component, so that the surface of the speed measuring wheel 5 contacts the exposed section of the cleaning belt 22, and the exposed section of the cleaning belt 22 can be squeezed.

[0039] Reference Figure 8The arc column 56 includes a cleaning section 5601 and an initial section 5602. When the slider 27 is located in the cleaning section 5601, the exposed sections of the two cleaning belts 22 are located between the two speed measuring wheels 5. When the slider 27 is located in the initial section 5602, the exposed sections of the two cleaning belts 22 are located on both sides of the speed measuring wheel 5. When the C-shaped shell 19 slides on the surface of the arc column 56 through the slider 27, the slider 27 leaves the initial section 5602 and enters the arc section, and finally reaches the cleaning section 5601. When the slider 27 is located in the initial section 5602, the exposed sections of the cleaning belts 22 are located on both sides of the speed measuring wheel 5, which does not hinder the normal operation of the speed measuring wheel 5. When the slider 27 is located in the cleaning section 5601, the exposed section of the cleaning belt 22 is located in the middle of the two speed measuring wheels 5, and the surface of the speed measuring wheel 5 can be cleaned.

[0040] Reference Figure 5 and Figure 8 The speedometer body 4 is provided with a locking assembly for locking the slider 27, and the locking assembly includes a connecting plate 28 fixedly connected to the speedometer body 4, a worm 29 is rotatably connected to the top of the connecting plate 28, a second rotating block 30 is fixedly connected to the top of the worm 29, four first fixed plates 31 are fixedly connected to the top of the connecting plate 28, a third rotating shaft 32 is rotatably connected between two corresponding first fixed plates 31, a worm wheel 33 meshing with the worm 29 is fixedly connected to the outer wall of the third rotating shaft 32, a rotating block 34 is fixedly connected to the outer wall of the third rotating shaft 32, and a U-shaped plate 35 is fixedly connected to one end of the rotating block 34, one of the U-shaped plates 35 is sleeved on The two side walls of the slider 27; when the slider 27 needs to slide on the surface of the arc column 56, it is necessary to first release the limit of the U-shaped plate 35 on the slider 27, rotate the second rotary block 30, the second rotary block 30 drives the worm 29 to rotate, the worm 29 drives the worm gear 33 to rotate, the worm gear 33 drives the third rotating shaft 32 to rotate, the third rotating shaft 32 drives the U-shaped plate 35 to rotate through the rotating block 34, so that the U-shaped plate 35 and the slider 27 are not in contact, and the slider 27 can be slid on the surface of the arc column 56. When the slider 27 slides to the cleaning section 5601, the second rotary block 30 is rotated in the opposite direction to drive the U-shaped plate 35 to reset, and the other U-shaped plate 35 limits the slider 27 located in the cleaning section 5601.

[0041] Reference Figure 2 , Figure 6 and Fig. 9The C-shaped housing 19 is provided with a driving assembly for driving the speed measuring wheel 5 to rotate, and the driving assembly includes two fourth rotating shafts 36 rotatably connected to the C-shaped housing 19, one of the fourth rotating shafts 36 is fixedly connected to one end of one of the first rotating shafts 20, and the outer walls of the fourth rotating shafts 36 are fixedly connected to second pulleys 37, and the two second pulleys 37 are connected to each other through a second transmission belt 38. A second fixed plate 39 is fixedly connected to one side wall of the C-shaped housing 19, and a rotating column 40 is rotatably connected to the middle of the second fixed plate 39, and the top and One end of one of the fourth rotating shafts 36 is fixedly connected to a first bevel gear 41 that meshes with each other, a plug post 42 is slidably inserted into the bottom end of the rotating column 40, and an insertion strip 43 is fixedly connected to the outer wall of the plug post 42. A slot that matches the plug post 42 and the insertion strip 43 is opened at the bottom end of the rotating column 40, and a second bevel gear 44 is fixedly connected to the bottom end of the plug post 42. Both side walls of the second fixed plate 39 are opened with a sliding groove 48, and a limit plate 45 is slidably connected in the sliding groove 48. The limit plate 45 contacts the bottom of the second bevel gear 44, and the two side walls of the second fixed plate 39 are fixedly connected with The rubber block 46 contacted by the limit plate 45 and the one side wall of the speed measuring wheel 5 are fixedly connected with a bevel gear ring 47; when the C-shaped shell 19 slides to the cleaning section 5601 of the arc column 56 through the slider 27, the limit plate 45 is pulled toward the C-shaped shell 19, so that the limit plate 45 passes over the rubber block 46, and the limit of the second bevel gear 44 by the limit plate 45 is released. An elastic member is provided between the top of the plug column 42 and the slot, and the elastic member is in a compressed state. Under the action of the elastic member, the plug column 42 and the second bevel gear 44 move downward, so that the second bevel gear 44 meshes with the bevel gear ring 47 below, and the motor is started. 24 drives the cleaning belt 22 to run through the first rotating shaft 20, and the exposed section of the cleaning belt 22 moves downward relative to the speed measuring wheel 5. The first rotating shaft 20 drives the rotating column 40 to rotate through the fourth rotating shaft 36, the second pulley 37, the second transmission belt 38 and the two first bevel gears 41. The rotating column 40 drives the speed measuring wheel 5 to rotate through the plug column 42, the second bevel gear 44 and the bevel gear ring 47, and the rotation direction of the speed measuring wheel 5 rotates counterclockwise relative to the exposed section of the cleaning belt 22, so that the speed measuring wheel 5 and the exposed section of the cleaning belt 22 generate friction, and the cleaning belt 22 can clean the surface of the speed measuring wheel 5.

[0042] Reference Figure 7 and Fig.10The C-shaped shell 19 is provided with an anti-wrinkle component for keeping the cleaning belt 22 from wrinkling. The anti-wrinkle component includes a telescopic sleeve 49 fixedly connected to the inner walls on both sides of the C-shaped shell 19, one end of the telescopic sleeve 49 is fixedly connected to a cross plate 50, and a second spring 51 is fixedly connected between the cross plate 50 and the inner wall of the C-shaped shell 19 and is sleeved on the outside of the telescopic sleeve 49. One side wall of the cross plate 50 is rotatably connected to two fifth rotating shafts 52, and one end of the fifth rotating shaft 52 is fixedly connected to a rotating wheel 53 in contact with the cleaning belt 22; during the operation of the cleaning belt 22, in order to prevent the cleaning belt 22 from wrinkling, the rotating wheel 53 in the C-shaped shell 19 has a pulling effect on the cleaning belt 22 at all times, pulling the cleaning belt 22 to both sides, and the second spring 51 provides a pulling force, which can straighten the passing cleaning belt 22 and eliminate wrinkles.

[0043] Working principle: When in use, the base 1 is set near the steel wire rope to be measured, and the positions of the two speed measuring wheels 5 are adjusted through the universal rod 2 according to the position of the steel wire rope, so that the steel wire rope is located between the two speed measuring wheels 5 and the steel wire rope is in contact with the two speed measuring wheels 5. The running speed of the steel wire rope is measured by the two speed measuring wheels 5. Setting two speed measuring wheels 5 can reduce the error that may be generated by a single speed measuring wheel 5, which helps to improve the stability and repeatability of the measurement. By comparing the measurement data of the two speed measuring wheels 5, some systematic errors and random errors can be eliminated, thereby improving the measurement accuracy. To improve the accuracy of the measurement, when the speed measuring wheel 5 is finished measuring, the lubricating material on the wire rope will adhere to the surface of the speed measuring wheel 5, and the surface of the speed measuring wheel 5 needs to be cleaned before being stored, by making the two cleaning belts 22 contact with the surface of the speed measuring wheel 5, and the two first rotating shafts 20 rotate in the same direction, the first rotating shafts 20 drive the two winding wheels 21 to rotate, the upper winding wheel 21 releases the cleaning belt 22, and the lower winding wheel 21 retracts the cleaning belt 22, so that the cleaning belt 22 moves downward in the vertical direction relative to the speed measuring wheel 5, so that the cleaning belt 22 cleans the speed measuring wheel 5;

[0044] After the steel wire rope is placed between the two speed measuring wheels 5, it is necessary to first make the two speed measuring wheels 5 press-fit into contact with the steel wire rope, rotate the first rotary block 6, the first rotary block 6 drives the rotating shaft 54 ​​to rotate, the rotating shaft 54 ​​drives the circular gear 7 to rotate, the circular gear 7 drives the two racks 8 to rotate in opposite directions, the two racks 8 drive the two speed measuring instrument bodies 4 to move toward the middle, the speed measuring instrument body 4 drives the speed measuring wheels 5 to move toward the middle, so that the two speed measuring wheels 5 press-fit into contact with the steel wire rope;

[0045] During the process of the two tachometer wheels 5 pressing and contacting the steel wire ropes, the tachometer wheels 5 need to exert sufficient pressure on the steel wire ropes so that the steel wire ropes can drive the tachometer wheels 5 to rotate. In order to judge whether the tachometer wheels 5 exert sufficient pressure on the steel wire ropes, during the process of the tachometer wheels 5 moving toward the middle steel wire rope, the steel wire ropes can press the pressure-bearing column 12, and the pressure-bearing column 12 is pressed into the L-shaped channel 11. The pressure-bearing column 12 drives the extrusion column 13 to move through the connecting rod 16, and the corresponding first spring 18 is compressed. The extrusion column 13 can press the moving column 15, and the moving column 15 drives the display column 14 to move out of the L-shaped channel 11 through the connecting rod 16, and the corresponding first spring 18 is stretched. The greater the pressure of the tachometer wheel 5 on the steel wire rope, the longer the pressure-bearing column 12 enters the L-shaped channel 11, and the longer the display column 14 leaves the L-shaped channel 11. A scale is provided on the display column 14, and the user can judge the length of the display column 14 leaving the L-shaped channel 11 according to the scale, thereby judging the pressure of the tachometer wheel 5 on the steel wire rope;

[0046] When it is necessary to clean the surface of the speed measuring wheel 5 by the cleaning belt 22, the motor 24 is started, and the motor 24 drives one of the first rotating shafts 20 to rotate. The first rotating shaft 20 drives the other first rotating shaft 20 to rotate synchronously in the same direction through the first pulley 25 and the first transmission belt 26. The two first rotating shafts 20 drive the take-up wheels 21 to rotate. The upper take-up wheel 21 releases the cleaning belt 22, and the lower take-up wheel 21 reels the cleaning belt 22. The cleaning belt 22 runs around the two second rotating shafts 23, so that the exposed section of the cleaning belt 22 moves downward relative to the speed measuring wheel 5, and the exposed section of the cleaning belt 22 cleans the surface of the speed measuring wheel 5.

[0047] When the surface of the speed measuring wheel 5 needs to be cleaned, the cleaning belts 22 on both sides need to be moved between the two speed measuring wheels 5, so that the C-shaped housing 19 slides on the surface of the arc column 56 through the slider 27, and the C-shaped housing 19 can drive the exposed section of the cleaning belt 22 to move to the middle of the two speed measuring wheels 5. It is only necessary to drive the two speed measuring wheels 5 to move toward the middle through the pre-pressing assembly, so that the surface of the speed measuring wheel 5 contacts the exposed section of the cleaning belt 22, and the exposed section of the cleaning belt 22 can be squeezed;

[0048] When the C-shaped housing 19 slides on the surface of the arc column 56 through the slider 27, the slider 27 leaves the initial section 5602 and enters the arc section, and finally reaches the cleaning section 5601. When the slider 27 is located at the initial section 5602, the exposed section of the cleaning belt 22 is located at both sides of the speed measuring wheel 5, which does not hinder the normal operation of the speed measuring wheel 5. When the slider 27 is located at the cleaning section 5601, the exposed section of the cleaning belt 22 is located in the middle of the two speed measuring wheels 5, so that the surface of the speed measuring wheel 5 can be cleaned.

[0049] When it is necessary to make the slider 27 slide on the surface of the arc column 56, it is necessary to first release the limit of the slider 27 by the U-shaped plate 35, rotate the second rotary block 30, the second rotary block 30 drives the worm 29 to rotate, the worm 29 drives the worm wheel 33 to rotate, the worm wheel 33 drives the third rotating shaft 32 to rotate, the third rotating shaft 32 drives the U-shaped plate 35 to rotate through the rotating block 34, so that the U-shaped plate 35 and the slider 27 are not in contact, and the slider 27 can be slid on the surface of the arc column 56. When the slider 27 slides to the cleaning section 5601, the second rotary block 30 is rotated in the opposite direction to drive the U-shaped plate 35 to reset, and the other U-shaped plate 35 limits the slider 27 located in the cleaning section 5601.

[0050] When the C-shaped housing 19 slides to the cleaning section 5601 of the arc column 56 through the slider 27, the limit plate 45 is pulled toward the C-shaped housing 19, so that the limit plate 45 passes over the rubber block 46, and the limit of the second bevel gear 44 by the limit plate 45 is released. An elastic member is provided between the top of the plug column 42 and the slot, and the elastic member is in a compressed state. Under the action of the elastic member, the plug column 42 and the second bevel gear 44 move downward, so that the second bevel gear 44 meshes with the bevel gear ring 47 below, and the start motor 24 drives the cleaning belt 22 through the first rotating shaft 20. During operation, the exposed section of the cleaning belt 22 moves downward relative to the speed measuring wheel 5, the first rotating shaft 20 drives the rotating column 40 to rotate through the fourth rotating shaft 36, the second belt pulley 37, the second transmission belt 38 and the two first bevel gears 41, and the rotating column 40 drives the speed measuring wheel 5 to rotate through the plug column 42, the second bevel gear 44 and the bevel gear ring 47, and the rotation direction of the speed measuring wheel 5 is counterclockwise relative to the exposed section of the cleaning belt 22, so that the speed measuring wheel 5 and the exposed section of the cleaning belt 22 generate friction, and the cleaning belt 22 can clean the surface of the speed measuring wheel 5;

[0051] During the operation of the cleaning belt 22, in order to prevent the cleaning belt 22 from wrinkling, the rotating wheel 53 in the C-shaped shell 19 always has a pulling effect on the cleaning belt 22, pulling the cleaning belt 22 to both sides, and the second spring 51 provides a pulling force, which can straighten the passing cleaning belt 22 and eliminate wrinkles.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0053] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator balance coefficient testing device, comprising a base (1), a universal rod (2) mounted on the base (1), a plate (3) mounted on one end of the universal rod (2), a tachometer body (4) arranged on the top of the plate (3), and a tachometer wheel (5) rotatably connected to the tachometer body (4) via a connecting shaft, characterized in that: The speed meter body (4) and the speed measuring wheel (5) are both provided with two and are symmetrically arranged on the top of the flat plate (3), and the two speed measuring wheels (5) are used to measure the speed of the wire rope at the same time, and also include: A self-cleaning component is arranged on the speed meter body (4), the self-cleaning component is used to clean the surface of the speed measuring wheel (5), the self-cleaning component comprises two first rotating shafts (20), two tape reels (21) and a cleaning belt (22), the two tape reels (21) are respectively fixed to the outer wall of the first rotating shaft (20), the cleaning belt (22) is respectively wound and fixed to the outer wall of the two tape reels (21), and the cleaning belt (22) is used to run between the two tape reels (21) to clean the surface of the speed measuring wheel (5); The speed measuring wheel (5) is provided with a detection component for detecting whether the speed measuring wheel (5) and the steel wire rope are pre-stressed in place, and the detection component includes an L-shaped channel (11) opened in the speed measuring wheel (5), and a pressure column (12), an extrusion column (13), a display column (14) and a moving column (15) are slidably inserted in the L-shaped channel (11), and a connecting rod (16) is fixedly connected between the pressure column (12) and the extrusion column (13) and between the display column (14) and the moving column (15). Two circular plates (17) are fixedly connected in the L-shaped channel (11), and the connecting rod (16) slides through the circular plates (17), and a first spring (18) sleeved on the outside of the connecting rod (16) is fixedly connected between one of the circular plates (17) and the pressure column (12) and between the other circular plate (17) and the display column (14); The plate (3) is provided with a pre-stressing assembly for making the two speed measuring wheels (5) simultaneously in close contact with the wire rope, the pre-stressing assembly comprising a rotating shaft (54) rotatably connected to the top of the plate (3), a first rotating block (6) being fixedly connected to the top of the rotating shaft (54), a circular gear (7) being fixedly connected to the outer wall of the rotating shaft (54), a rack (8) meshing with the circular gear (7) being fixedly connected to one side wall of the two speed measuring instrument bodies (4), the two speed measuring instrument bodies (4) being slidably connected to the top of the plate (3), a rubber disc (9) being fixedly connected to the outer wall of the rotating shaft (54), and a rubber seat (10) in contact with the bottom of the rubber disc (9) being fixedly connected to the top of the plate (3); The self-cleaning assembly further comprises two C-shaped shells (19) arranged on both sides of the speed measuring wheel (5); a section of the cleaning belt (22) is located outside the C-shaped shell (19), and the exposed section of the cleaning belt (22) is used to move downward relative to the C-shaped shell (19); the two first rotating shafts (20) are rotatably connected in the C-shaped shell (19); two second rotating shafts (23) are rotatably connected in the C-shaped shell (19); the cleaning belt (22) passes through the surfaces of the two second rotating shafts (23); a motor (24) is fixedly connected to the C-shaped shell (19); the output shaft of the motor (24) is fixedly connected to one end of one of the first rotating shafts (20); the outer walls of the two first rotating shafts (20) are fixedly connected to first pulleys (25); the two first pulleys (25) are connected in transmission via a first transmission belt (26); A slider (27) is fixedly connected to one side wall of the C-shaped housing (19), a connecting block (55) is fixedly connected to one side wall of the speed meter body (4), an arc-shaped column (56) is fixedly connected to one end of the connecting block (55), a through opening is opened in the middle of the slider (27), and the slider (27) is slidably connected to the surface of the arc-shaped column (56) through the through opening; The arc column (56) comprises a cleaning section (5601) and an initial section (5602); when the slider (27) is located in the cleaning section (5601), the exposed sections of the two cleaning belts (22) are located between the two speed measuring wheels (5); and when the slider (27) is located in the initial section (5602), the exposed sections of the two cleaning belts (22) are located on both sides of the speed measuring wheel (5).

2. The elevator balance coefficient testing device according to claim 1, characterized in that: The speedometer body (4) is provided with a locking assembly for locking the slider (27), the locking assembly comprising a connecting plate (28) fixedly connected to the speedometer body (4), a worm (29) being rotatably connected to the top of the connecting plate (28), a second rotating block (30) being fixedly connected to the top of the worm (29), four first fixed plates (31) being fixedly connected to the top of the connecting plate (28), a third rotating shaft (32) being rotatably connected between two corresponding first fixed plates (31), a worm wheel (33) meshing with the worm (29) being fixedly connected to the outer wall of the third rotating shaft (32), a rotating block (34) being fixedly connected to the outer wall of the third rotating shaft (32), one end of the rotating block (34) being fixedly connected to a U-shaped plate (35), one of the U-shaped plates (35) being sleeved on two side walls of the slider (27).

3. The elevator balance coefficient testing device according to claim 2, characterized in that: The C-shaped housing (19) is provided with a driving assembly for driving the speed measuring wheel (5) to rotate, the driving assembly comprising two fourth rotating shafts (36) rotatably connected to the C-shaped housing (19), one of the fourth rotating shafts (36) being fixedly connected to one end of one of the first rotating shafts (20), the outer wall of each of the fourth rotating shafts (36) being fixedly connected to a second belt pulley (37), the two second belt pulleys (37) being connected in transmission via a second transmission belt (38), a second fixed plate (39) being fixedly connected to one side wall of the C-shaped housing (19), a rotating column (40) being rotatably connected to the middle of the second fixed plate (39), the top end of the rotating column (40) and one end of one of the fourth rotating shafts (36) being fixedly connected to mutually meshing first belt pulleys (37), and the rotating column (40) and the first belt pulleys (37) being fixedly connected to one end of the first rotating shafts (20). A bevel gear (41), an inserting column (42) is slidably inserted at the bottom end of the rotating column (40), an inserting strip (43) is fixedly connected to the outer wall of the inserting column (42), a slot matched with the inserting column (42) and the inserting strip (43) is opened at the bottom end of the rotating column (40), a second bevel gear (44) is fixedly connected to the bottom end of the inserting column (42), a sliding groove (48) is opened on both side walls of the second fixed plate (39), a limit plate (45) is slidably connected in the sliding groove (48), the limit plate (45) is in contact with the bottom of the second bevel gear (44), a rubber block (46) in contact with the limit plate (45) is fixedly connected to both side walls of the second fixed plate (39), and a bevel gear ring (47) is fixedly connected to one side wall of the speed measuring wheel (5).

4. The elevator balance coefficient testing device according to claim 3, characterized in that: The C-shaped shell (19) is provided with an anti-wrinkle component for keeping the cleaning belt (22) wrinkle-free, the anti-wrinkle component comprising a telescopic sleeve (49) fixedly connected to the inner walls on both sides of the C-shaped shell (19), one end of the telescopic sleeve (49) is fixedly connected to a transverse plate (50), a second spring (51) sleeved on the outside of the telescopic sleeve (49) is fixedly connected between the transverse plate (50) and the inner wall of the C-shaped shell (19), one side wall of the transverse plate (50) is rotatably connected to two fifth rotating shafts (52), one end of the fifth rotating shaft (52) is fixedly connected to a rotating wheel (53) in contact with the cleaning belt (22).

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