High-speed elevator speed limiter detection device and detection method

Abstract

The high-speed elevator speed governor detection device comprises a base, a lifting pressurization mechanism, a top plate, a second servo motor, a transmission wheel, a magnetic block and a position sensor, the lifting pressurization mechanism is arranged on the base, and the top plate is installed on the lifting pressurization mechanism and driven by the lifting pressurization mechanism to ascend and descend; the second servo motor is arranged on the top plate, the transmission wheel is arranged on an output shaft of the second servo motor and driven by the second servo motor to rotate, the position sensor is arranged on the side, facing the transmission wheel, of the top plate, and the magnetic block is used for being attached to a rope wheel of the elevator limiting stopper to be detected in the using state. The position sensor is matched with the magnetic block to detect the rotation rate of the rope wheel. The lifting pressurizing mechanism is arranged to drive the transmission wheel to ascend and descend, so that the transmission wheel is tightly attached to the rope wheel, the transmission wheel rotates to drive the rope wheel to rotate at a high speed, it is guaranteed that the speed limiter ring meets the high-speed rotation requirement, high-speed rotation of the rope wheel is uniform and stable, and the detection precision of the device is improved.

Description

Technical Field

[0001] The invention relates to a high-speed elevator speed limiter detection device and a detection method, belonging to the technical field of elevator detection. Background Art

[0002] The elevator speed limiter is a key component in the elevator safety protection system. It is responsible for monitoring the running speed of the elevator and triggering the safety protection device when the elevator exceeds the speed limit to ensure the safety of the elevator passengers. Therefore, the detection of the elevator speed limiter is an indispensable part of the elevator safety detection. When a high-speed elevator is actually put into use, it requires greater traction to limit it, and the power and speed of the speed limiter it uses will also increase.

[0003] The existing elevator speed limiter detection device still has disadvantages in actual use, such as: 1. Since the power and speed of the speed limiter used in high-speed elevators are higher, ordinary handheld measuring instruments cannot ensure that the speed limiter ring meets the detection requirements under high-speed conditions; 2. Manual adjustment of the detection position cannot ensure precise contact between them.

[0004] It is necessary to ensure that the device can detect the speed limiter used in high-speed elevators so that the speed of the speed limiter during detection can reach the speed state normally used, and it is necessary to fine-tune the position between the position sensor and the magnetic block to prevent errors in the collected data. The existing technology cannot solve the above problems well. Summary of the invention

[0005] An object of the present invention is to provide a high-speed elevator speed limiter detection device to solve the technical defect that the high-speed elevator speed limiter detection in the prior art cannot ensure that the speed limiter ring meets the high-speed state and affects the detection accuracy.

[0006] To solve the above problems, the technical solution adopted by the present invention is: a high-speed elevator speed limiter detection device, including a base, a lifting and pressurizing mechanism, a top plate, a second servo motor, a transmission wheel, a magnetic block and a position sensor, the base is arranged on one side of the elevator limiter to be detected, the lifting and pressurizing mechanism is arranged on the base, the top plate is installed on the lifting and pressurizing mechanism and is driven to lift and lower by the lifting and pressurizing mechanism, the second servo motor is arranged on the top plate, and its output shaft is parallel to the center line of the rope wheel of the elevator limiter to be detected, the transmission wheel is arranged on the output shaft of the second servo motor and is driven to rotate by the second servo motor, the second servo motor and the transmission wheel are synchronously lifted and lowered with the lifting and lowering of the top plate, and are used to adjust the transmission wheel to fit closely with the rope wheel, and the rotation of the transmission wheel is used to drive the rope wheel to rotate, the position sensor is arranged on the side of the top plate facing the transmission wheel, the magnetic block is used to be attached to the rope wheel of the elevator limiter to be detected in the use state, and the position sensor and the magnetic block are used to detect the rotation rate of the rope wheel in cooperation. The present invention is provided with a lifting and pressurizing mechanism to drive the top plate and the second servo motor and the transmission wheel thereon to lift and lower, so that the transmission wheel is closely fitted with the rope wheel, and the transmission wheel rotates to drive the rope wheel to rotate at a high speed, thereby ensuring that the speed limiter ring meets the high-speed rotation requirement. Compared with the handheld measuring instrument in the prior art, the high-speed rotation of the rope wheel of the present invention is uniform and stable, thereby improving the detection accuracy of the present invention.

[0007] As a further improvement of the present invention, the lifting and pressurizing mechanism includes a first servo motor, a bidirectional screw rod, a first screw rod and two connecting rod mechanisms. The first servo motor is arranged on the base, and the first screw rod is arranged in the vertical direction. Its bottom end is connected to the output shaft of the first servo motor and is driven to rotate by the first servo motor. The two connecting rod mechanisms are symmetrically arranged on both sides of the first screw rod. The connecting rod mechanism includes a first connecting rod, a connecting block and a second connecting rod. The upper end of the first connecting rod and the lower end of the second connecting rod are both rotatably connected to the connecting block. The lower end of the first connecting rod is rotatably connected to the base, and the upper end of the second connecting rod is rotatably connected to the top plate. The two ends of the bidirectional screw rod respectively pass through the connecting blocks of the two connecting rod mechanisms and are threadedly matched with the connecting blocks. A transmission gear is fixed to the middle part of the bidirectional screw rod, which is meshed with the first screw rod. The first screw drives the bidirectional screw rod to rotate, so that the connecting blocks of the two connecting rods are synchronously close to or away from each other, and the first connecting rod and the second connecting rod rotate relative to drive the top plate to move up and down. In the present invention, the first servo motor drives the first screw to rotate, and the first screw drives the bidirectional lead screw to rotate through the transmission gear meshing with it, and the bidirectional lead screw drives the two connecting blocks to approach or move away from each other at the same time. When the two connecting blocks approach each other, the angle between the first connecting rod and the second connecting rod increases, pushing the top plate upward, and when the two connecting blocks approach each other, the angle between the first connecting rod and the second connecting rod decreases, the height is reduced, and the top plate moves downward, thereby causing the top plate and the transmission wheel to move up and down.

[0008] As a further improvement of the present invention, the connecting rod mechanism also includes a first mounting rod, and there are two first connecting rods and two second connecting rods. The lower ends of the two first connecting rods are fixedly connected to the first mounting rod, and the first mounting rod is rotatably connected to the base. The upper ends of the two first connecting rods are respectively located on both sides of the connecting block and are rotatably connected to the connecting block. The lower ends of the two second connecting rods are respectively located on both sides of the connecting block and are rotatably connected to the connecting block. The upper ends of the two second connecting rods are respectively located on both sides of the top plate and are rotatably connected to the top plate. In the present invention, the connecting mechanism is provided with two first connecting rods and the second connecting rod, and both sides of the connecting block are connected with the first connecting rod and the second connecting rod, thereby improving the stability of the connecting rod mechanism.

[0009] As a further improvement of the present invention, it also includes a fine-tuning mechanism, which includes a third servo motor, a second screw and a fine-tuning block. The third servo motor is arranged on the top plate, the fine-tuning block is arranged on the top plate and forms a vertical moving pair with the top plate, the second screw passes through the fine-tuning block and cooperates with the fine-tuning block thread, the output shaft of the third servo motor is connected to the second screw, the third servo motor drives the second screw to rotate, and is used to drive the fine-tuning block to move vertically on the top plate, and the position sensor is arranged on the fine-tuning block and moves synchronously with the movement of the fine-tuning block. The present invention is provided with a fine-tuning mechanism, and after the magnetic block is arranged on the rope pulley, the height of the position sensor is adjusted by the fine-tuning mechanism to make it correspond to the magnetic block, so as to improve the detection accuracy of the present invention.

[0010] As a further improvement of the present invention, a mounting groove is provided on one side of the top plate close to the rope pulley in the vertical direction, and a fine-tuning block is provided in the mounting groove, and its cross-sectional shape is the same as the cross-sectional shape of the mounting groove. Except for the side wall of the fine-tuning block facing the rope pulley, the other three side walls are all in contact with the inner wall of the mounting groove, and the fine-tuning block moves vertically in the mounting groove and is prevented from rotating by the mounting groove. The present invention provides a mounting groove on the top plate to cooperate with the fine-tuning block to prevent the fine-tuning block from rotating when moving vertically, and also guides and limits the movement of the fine-tuning block.

[0011] As a further improvement of the present invention, a positioning mechanism is also included, the positioning mechanism includes a positioning motor, a transmission screw and two limit plates, the transmission screw passes through the base, the two limit plates are respectively arranged at the two ends of the transmission screw and are threadedly matched with the transmission screw, the positioning motor is connected to the transmission screw, the positioning motor drives the transmission screw to rotate, and the rotation of the transmission screw is used for the two limit plates to synchronously approach or move away from each other. The present invention is provided with a positioning mechanism, and when the positioning motor drives the two limit plates to move toward each other and resist the elevator speed limiter, it can ensure that the center line of the transmission wheel and the center line of the rope wheel are located on the same vertical plane.

[0012] As a further improvement of the present invention, the positioning mechanism further comprises a limit rod, which is fixed to the base and parallel to the transmission screw, and the two ends of the limit rod respectively pass through the two limit plates to prevent the limit plates from rotating when moving. The present invention provides the limit rod to make the movement of the limit plates more stable.

[0013] As a further improvement of the present invention, a motor fixing slot is provided at the bottom of the base, the positioning motor is arranged in the motor fixing slot, the positioning motor adopts a dual output shaft motor, and the output shafts on both sides of the dual output shaft motor are each connected to a transmission screw rod, which is used to drive the two transmission screw rods to rotate synchronously. The present invention provides a motor fixing slot, and arranges the positioning motor in the motor fixing slot, so that the transmission screw rod and the limit plate are symmetrically arranged relative to the positioning motor.

[0014] As a further improvement of the present invention, a display screen and a plurality of control buttons are provided on the side of the base away from the rope pulley, which are used to control the lifting and lowering of the lifting and pressurizing mechanism and the operation of the second servo motor. A data processor is provided in the base, and the position sensor and the display screen are electrically connected to the data processor. The present invention facilitates the control of adjustment and detection, and also allows for more direct observation of the detection results.

[0015] Another object of the present invention is to provide a method for detecting a high-speed elevator speed limiter, so as to improve the detection accuracy of the high-speed elevator speed limiter in the prior art.

[0016] In order to solve the above problems, the technical solution adopted by the present invention is: a method for detecting a high-speed elevator speed limiter, using a high-speed elevator speed limiter detection device, comprising the following steps: S1. Take out the speed limit rope on the elevator speed limiter rope wheel, so that the rope wheel of the elevator speed limiter body can idle without the resistance of the speed limit rope, and install the high-speed elevator speed limiter detection device in the center position on the side of the elevator speed limiter.

[0017] S2. Adjust the position of the base so that the transmission wheel is above the rope pulley, and the center line of the transmission wheel and the midline of the rope pulley are in the same vertical plane.

[0018] S3. Adjust the lifting and pressurizing mechanism to make the transmission wheels move down to fit tightly against the rope wheels.

[0019] S4. Attach the magnet to the side of the pulley facing the position sensor, and make sure the magnet and the position sensor are on the same horizontal line.

[0020] S5. Start the second servo motor, which drives the rope pulley to rotate via the transmission wheel. The position sensor detects the position of the magnetic block once every rotation of the rope pulley, and calculates and records the rotation rate of the rope pulley.

[0021] The present invention adjusts the fit between the transmission wheel and the rope wheel through the lifting and pressing mechanism. The transmission wheel rotates to drive the rope wheel to rotate at high speed, ensuring that the speed limiter ring meets the high-speed rotation requirement. Compared with the handheld measuring instrument in the prior art, the high-speed rotation of the rope wheel is uniform and stable, thereby improving the detection accuracy of the present invention.

[0022] To sum up, the beneficial effect of the present invention is as follows: the present invention sets the first mounting rod, the first connecting rod, the first connecting shaft and other structures to cooperate, so that the device can start the first servo motor, and the first servo motor drives the first screw to rotate. When the first screw rotates, it meshes with the transmission gear through its own shape, so that the transmission gear drives the bidirectional lead screw to rotate. Since the outer wall of the bidirectional lead screw is threaded with two groups of connecting blocks, the bidirectional lead screw can drive the positions of the two groups of connecting blocks to move along the bidirectional lead screw when it rotates, and by setting four groups of second connecting rods and the first connecting rod and being hinged to the first connecting shaft, when the position of the first connecting shaft is translated, the first connecting rod and the second connecting rod change their angles, so that the top plate fixed by the second connecting shaft hinged by the second connecting rod at the top follows the change of the angle between the second connecting rod and the first connecting rod to rise and fall, and the motion trajectory is a straight line descent or ascent. At this time, the motion trajectory can make the transmission wheel fit the rope wheel more closely, thereby preventing the transmission energy from being lost, so as to ensure that the device records the rotation speed of the transmission wheel and the rope wheel and can prevent the transmission between them from being separated, resulting in unstable detection results.

[0023] The present invention arranges a third servo motor, a second screw, a fine-tuning block and other structures in coordination, so that the device can stick the magnetic block to the side wall of the rope pulley, start the third servo motor, and drive the second screw to rotate, so that the height of the fine-tuning block changes when the second screw rotates. When the position of the position sensor and the magnetic block are on the same horizontal line, the position sensor can sense, and the signal indicator light emits a bright light to prompt the user that they have been adjusted to the same horizontal line, thereby achieving the purpose of facilitating the device to fine-tune the position sensor and the rope pulley to the same horizontal line to maintain the accuracy of detecting the rotation rate of the rope pulley.

[0024] The present invention cooperates with structures such as a positioning motor, a transmission screw rod, and a limit plate, so that the device can start the positioning motor, and the positioning motor drives the transmission screw rod to rotate, so that the transmission screw rod drives the position of the limit plate to move through its own shape when rotating, and the limit plate can be limited by the limit rod to prevent the position of the limit plate from being offset. Since two groups of limit plates are provided, the two groups of limit plates move in opposite directions when the transmission screw rod rotates, and when the limit plate contacts the base of the elevator speed limiter body, it can drive the ball at the bottom of the base to roll and thus adjust the position of the base, so that the base is aligned with the central axis of the elevator speed limiter body, so that the transmission wheel is located directly above the rope pulley groove, thereby achieving the purpose of facilitating the alignment of the device with the elevator speed limiter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention in use state.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of another angle of the present invention in use.

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the present invention.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the present invention from another angle.

[0029] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the lifting and pressing mechanism structure in the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the positioning mechanism in the present invention.

[0032] Wherein: 1. base; 2. positioning mechanism; 201. bidirectional motor; 202. transmission screw rod; 203. limit plate; 204. limit rod; 3. lifting and pressing mechanism; 301. first mounting rod; 302. first connecting rod; 303. first connecting shaft; 304. connecting block; 305. bidirectional screw rod; 306. second connecting rod; 307. second connecting shaft; 308. first servo motor; 309. first screw rod; 310. transmission gear; 4. top plate; 5. second servo motor; 6. motor rod; 7. transmission wheel; 8. fine-tuning mechanism; 801. third servo motor; 802. second screw rod; 803. fine-tuning block; 804. position sensor; 805. signal indicator light; 806. magnetic block; 807. mounting slot; 9. display screen; 10. control button; 11. elevator speed limiter. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings. Example 1

[0034] like Figures 1 to 4The high-speed elevator speed limiter detection device shown includes a base 1, a lifting and pressurizing mechanism 3, a top plate 4, a second servo motor 5, a transmission wheel 7, a magnetic block 806 and a position sensor 804. The base 1 is arranged on one side of the elevator limiter 11 to be detected, and its relative position with the elevator limiter 11 is adjustable. The lifting and pressurizing mechanism 3 is arranged on the base 1, and the top plate 4 is installed on the lifting and pressurizing mechanism 3 and driven to rise and fall by the lifting and pressurizing mechanism 3. In the process of the lifting and pressurizing mechanism 3 driving the top plate 4 to rise and fall, the top plate 4 is always in a horizontal state. The second servo motor 5 is arranged on the top plate 4, and the output shaft of the second servo motor 5 is parallel to the center line of the rope wheel of the elevator limiter 11 to be detected. The transmission wheel 7 is arranged on the output shaft of the second servo motor 5 and is driven to rotate by the second servo motor 5. In this embodiment, a motor rod 6 is connected to the output shaft of the second servo motor 5, and the transmission wheel 7 is installed on the motor rod 6 On the top, by setting the motor rod 6, the distance between the transmission wheel 7 and the base 1 is increased, the second servo motor 5, the motor rod 6 and the transmission wheel 7 are synchronously lifted and lowered with the lifting and lowering of the top plate 4, so as to adjust the transmission wheel 7 to fit closely with the rope wheel. Before use, the top plate 4 is pushed upward by the lifting and pressurizing mechanism 3 to separate the transmission wheel 7 from the rope wheel of the elevator limiter 11, so as to avoid the transmission wheel 7 from interfering with the normal operation of the rope wheel during the normal operation of the elevator. When the elevator speed limiter 11 is detected, the lifting and pressurizing mechanism 3 pulls the top plate 4 downward to make the transmission wheel 7 fit closely with the rope wheel of the elevator limiter 11, and the transmission wheel 7 rotates to drive the rope wheel to rotate. The position sensor 804 is arranged on the side of the top plate 4 facing the transmission wheel 7, and the magnetic block 806 is used to be attached to the rope wheel of the elevator limiter 11 to be detected in the use state. The position sensor 804 cooperates with the magnetic block 806 to detect the rotation rate of the rope wheel.

[0035] like Figure 6As shown in the figure, the lifting and pressurizing mechanism 3 in this embodiment includes a first servo motor 308, a bidirectional lead screw 305, a first screw 309, and two link mechanisms. The first servo motor 308 is detachably mounted on the top of the base 1 by a motor base, and the output shaft of the first servo motor 308 is arranged vertically upward. The first screw 309 is arranged along the vertical direction, and its bottom end is connected to the output shaft of the first servo motor 308 and driven to rotate by the first servo motor 308. The upper part of the first screw 308 passes upward through the top plate 4, and the top plate 4 can move relative to the first screw 308 when the first screw 308 rotates. In the present invention, the top plate 4 can limit the top end of the first screw 308 to prevent the top end of the first screw 308 from swinging greatly when rotating. The two link mechanisms are symmetrically arranged on both sides of the first screw 309. The link mechanism includes a first link 302, a connection block 304, and a second link 306. The upper end of the first link 302 and the lower end of the second link 306 are both rotatably connected to the connection block 304. The lower end of the first link 302 is rotatably connected to the base 1, and the upper end of the second link 306 is rotatably connected to the top plate 4. The two ends of the bidirectional lead screw 305 respectively pass through the connection blocks 304 of the two link mechanisms and are in threaded cooperation with the connection blocks 304. The thread directions of the two ends of the bidirectional lead screw 305 are opposite. A transmission gear 310 is fixed in the middle of the bidirectional lead screw 305, and the transmission gear 310 meshes with the first screw 309. When the first screw 309 rotates, it drives the bidirectional lead screw 305 to rotate through its meshing with the transmission gear 310. Since the thread directions of the two ends of the bidirectional lead screw 305 are opposite, the connection blocks 304 of the two link mechanisms move synchronously closer to or away from each other, and the relative rotation of the first link 302 and the second link 306 drives the top plate 4 to move up and down.

[0036] As Figure 6 shown, the link mechanism in this embodiment further includes a first mounting rod 301. There are two first links 302 and two second links 306. The lower ends of the two first links 302 are both fixedly connected to the first mounting rod 301. A "U"-shaped connection groove is formed in the top of the base 1, and the first mounting rod 301 is rotatably connected to the base 1 in the connection groove. The upper ends of the two first links 302 are respectively located on both sides of the connection block 304 and are rotatably connected to the connection block 304. The lower ends of the two second links 306 are respectively located on both sides of the connection block 304 and are rotatably connected to the connection block 304. The connection block 304 in this embodiment is a rectangular block. The upper end of the first link 302 and the lower end of the second link 306 on the same side of the connection block 304 are rotatably connected to the connection block 304 by the same first connection shaft 303. The first connection shaft 303 passes through the first link 302 and the second link 306 in sequence and is in threaded cooperation with the connection block 304. The upper ends of the two second links 306 are respectively located on both sides of the top plate 4 and are rotatably connected to the top plate 4 by a second connection shaft 307.

[0037] As Figure 2 and Figure 5 As shown, in order to facilitate the adjustment of the position sensor 804 to correspond to the magnetic block 806 during use, the present embodiment is provided with a fine-tuning mechanism 8, which includes a third servo motor 801, a second screw rod 802 and a fine-tuning block 803. The third servo motor 801 is detachably mounted on the bottom of the top plate 4 using a motor seat, the fine-tuning block 803 is arranged on the top plate 4 and forms a vertical moving pair with the top plate 4, the second screw rod 802 is vertically arranged and passes through the fine-tuning block 803 upwards and is threadedly matched with the fine-tuning block 803, the output shaft of the third servo motor 801 is connected to the bottom end of the second screw rod 802, and the third servo motor 801 drives the second screw rod 802 to rotate, which is used to drive the fine-tuning block 803 on the top plate 4, the position sensor 804 is arranged on the fine-tuning block 803 and moves synchronously with the movement of the fine-tuning block 803. A signal indicator light 805 is arranged on the position sensor 804. When the position sensor 804 senses the magnetic block 806, the signal indicator light 805 emits a bright light. When the present embodiment is used, the magnetic block 806 is first attached to the side of the rope drum facing the signal sensor 804, and then the fine-tuning block 803 is driven up and down by the third servo motor 801 to adjust the height of the position sensor 804. When it senses the magnetic block 806, the signal indicator light on the position sensor 804 is on. At this time, the fine-tuning mechanism 8 is adjusted in place, and the third servo motor 801 stops working.

[0038] like Figure 5 As shown, in this embodiment, a mounting groove 807 is provided on one side of the top plate 4 close to the rope pulley in the vertical direction, and the mounting groove 807 is a rectangular groove. The fine-tuning block 803 is arranged in the mounting groove 807, and its cross-sectional shape is the same as the cross-sectional shape of the mounting groove 807, that is, the fine-tuning block 803 is a rectangular block. Except for the side wall of the fine-tuning block 803 facing the rope pulley, the other three side walls are all in contact with the inner wall of the mounting groove 807. The fine-tuning block 803 moves vertically in the mounting groove 807 and is prevented from rotating by the mounting groove 807. The second screw 802 in this embodiment extends upward into the mounting groove 807 from the bottom of the mounting groove 807 and passes through the fine-tuning block 803 upward. The middle part of the top plate 4 in this embodiment is upward to increase the thickness in the middle of the top plate 4, and the mounting groove 807 is opened on the thicker part of the top plate 4.

[0039] This embodiment is provided with a positioning mechanism 2, such as Figure 7As shown, the positioning mechanism 2 includes a positioning motor 201, a transmission screw 202 and two limit plates 203. The transmission screw 202 passes through the base 1 and rotates relative to the base 1. The two limit plates 203 are respectively arranged at the two ends of the transmission screw 202 and are threadedly matched with the transmission screw 202. The positioning motor 201 is connected to the transmission screw 202, and the positioning motor 201 drives the transmission screw 202 to rotate. The rotation of the transmission screw 202 is used for the two limit plates 203 to synchronously approach or move away from each other. In the use state, the two limit plates 203 of the positioning mechanism 2 are respectively located on both sides of the elevator limiter 11. The positioning motor 201 drives the two limit plates 203 to move toward each other until they respectively abut against the two sides of the clamping elevator limiter 11, so as to complete the positioning of the base 1. At this time, the center line of the transmission wheel 7 and the center line of the rope pulley are located on the same vertical plane.

[0040] like Figure 7 As shown, the positioning mechanism 2 in this embodiment is provided with a limit rod 204, which is fixed to the base 1 and parallel to the transmission screw 202. The two ends of the limit rod 204 pass through two limit plates 203 respectively, and the limit plates 203 can move relative to the limit rod 204. The limit plates 203 are used to prevent the limit plates 203 from rotating when moving. In this embodiment, a motor fixing slot is provided at the bottom of the base 1, and the positioning motor 201 is installed in the motor fixing slot. The positioning motor 201 adopts a double output shaft motor, and the output shafts on both sides of the double output shaft motor are respectively connected to a transmission screw 202, which is used to drive the two transmission screws 202 to rotate synchronously. In this embodiment, the threads on the two transmission screws 202 are opposite in rotation direction, and the double output shaft motor drives the two transmission screws 202 to rotate in the same direction, so that the two limit plates 203 move toward each other at the same time or move away from each other at the same time. In this embodiment, multiple groups of balls (not shown in the figure) are symmetrically arranged at the bottom of the base 1, which can facilitate the movement of the base 1 in the use state.

[0041] like Figure 2 As shown, in this embodiment, a display screen 9 and a plurality of control buttons 10 are provided on the side of the base 1 away from the rope pulley. The plurality of control buttons 10 are respectively used to control the first servo motor 308, the second servo motor 5, the third servo motor 801 and the positioning motor 201 to rotate forward or reverse, thereby controlling the lifting and lowering of the lifting and pressurizing mechanism 3, the rotation of the transmission wheel 7, the up and down adjustment of the position sensor 804 and the centering alignment of this embodiment with the elevator limiter. A data processor is provided in the base 1, and the position sensor 804 and the display screen 9 are electrically connected to the data processor.

[0042] In this embodiment, the speed limiting rope on the elevator speed limiter body 11 is removed so that the rope pulley of the elevator speed limiter body 11 can idle without the resistance of the speed limiting rope. The base 1 is placed in the center of the side of the elevator speed limiter body 11. Since the position is manually adjusted, there is some deviation in the distance between the two at this time. The second servo motor 5 drives the motor rod 6 to rotate, and then drives the transmission wheel 7 to rotate. Since the transmission wheel 7 is in contact with the rope pulley, the rotation of the transmission wheel 7 can drive the rope pulley to rotate, and the contact between the transmission wheel 7 and the rope pulley is tight enough to prevent the loss of transmission energy, so as to ensure that the device records the rotation speed of the transmission wheel 7 and the rope pulley. The position sensor 804 can detect the position of the magnetic block 806 once for each rotation of the rope pulley, and then calculate and record the rate of each rotation of the rope pulley. The data processor inside the device will display the time required for each rotation in a wave-like graph on the surface of the display screen 9 for the staff to observe and record.

[0043] In this embodiment, by starting the first servo motor 308, the first servo motor 308 drives the first screw 309 to rotate. When the first screw 309 rotates, it meshes with the transmission gear 310 through its own shape, so that the transmission gear 310 drives the bidirectional screw 305 to rotate. Since the outer wall of the bidirectional screw 305 is threadedly connected with two groups of connecting blocks 304, the bidirectional screw 305 can drive the positions of the two groups of connecting blocks 304 to move along the bidirectional screw 305 when rotating, and by setting four groups of second connecting rods 306 and the first connecting rod 302 and the first connecting shaft 303, the first connecting rod 306 is hinged to the first connecting shaft 303. When the position of a connecting shaft 303 translates, the first connecting rod 302 and the second connecting rod 306 change their angles, so that the top plate 4 fixed by the second connecting shaft 307 hinged by the second connecting rod 306 at the top rises and falls following the change in the angle between the second connecting rod 306 and the first connecting rod 302. The motion trajectory is a straight descent or ascent. At this time, the motion trajectory can make the transmission wheel 7 fit the rope wheel more closely to prevent the loss of transmission energy, so as to ensure that the device records the rotation speed of the transmission wheel 7 and the rope wheel and can prevent the transmission therebetween from being separated, resulting in unstable detection results.

[0044] In this embodiment, by starting the positioning motor 201, the positioning motor 201 drives the transmission screw 202 to rotate, so that the transmission screw 202 drives the position of the limit plate 203 to move due to its own shape during rotation, and the limit plate 203 can be limited by the limit rod 204 to prevent the position of the limit plate 203 from being offset. Since two groups of limit plates 203 are provided, the two groups of limit plates 203 move in opposite directions when the transmission screw 202 rotates. When the limit plates 203 contact the base of the elevator speed limiter body 11, they can drive the ball at the bottom of the base 1 to roll and then adjust the position of the base 1, so that the base 1 is aligned with the central axis of the elevator speed limiter body 11, so that the transmission wheel 7 is located directly above the rope pulley groove. Example 2

[0045] This embodiment is a method for detecting a high-speed elevator speed limiter, using the high-speed elevator speed limiter detection device of Embodiment 1, and includes the following steps: S1. Take out the speed limit rope on the elevator speed limiter body 11 so that the rope wheel of the elevator speed limiter body 11 can idle without the resistance of the speed limit rope. The base 1 is placed in the center of the side of the elevator speed limiter body 11. At this time, the two limit plates 203 are respectively located on both sides of the base of the elevator speed limiter body 11. Since the position is manually adjusted, there is some deviation in the distance between the base 1 and the elevator speed limiter body 11.

[0046] S2. Start the positioning motor 201, which drives the transmission screw 202 to rotate, so that the transmission screw 202 drives the limit plate 203 to move when rotating, and the limit plate 203 can be limited by the limit rod 204, so that the limit plate 203 can only move along the direction of the limit rod 204, but cannot rotate, to prevent the position of the limit plate 203 from being offset. In this embodiment, two limit plates 203 are provided, and the two limit plates 203 move toward each other when the transmission screw 202 rotates. When the limit plate 203 contacts the base of the elevator speed governor body 11, it can drive the ball at the bottom of the base 1 to roll and then adjust the position of the base 1, so that the base 1 is aligned with the central axis of the elevator speed governor body 11, and the transmission wheel 7 is located directly above the rope pulley.

[0047] S3, start the first servo motor 308, the first servo motor 308 drives the first screw 309 to rotate, the first screw 309 is connected by meshing with the transmission gear 310 when rotating, so that the transmission gear 310 drives the bidirectional screw 305 to rotate, because the bidirectional screw 305 is threadedly connected to the two connecting blocks 304, the bidirectional screw 305 can drive the two groups of connecting blocks 304 to move along the bidirectional screw 305 when rotating, and by setting two groups of second connecting rods 306 and two groups of first connecting rods 302 to be hinged with the first connecting shaft 303, when the positions of the two connecting blocks 304 move, the first connecting rod 302 and the second The connecting rod 306 changes its angle, so that the top plate 4, which is rotatably connected to the second connecting shaft 307 hinged by the second connecting rod 306, rises and falls following the change in the angle between the second connecting rod 306 and the first connecting rod 302. The movement trajectory is a straight descent or ascent. When the two connecting blocks 304 approach each other, the angle between the first connecting rod 302 and the second connecting rod 306 increases, pushing the top plate 4 upward, and when the two connecting blocks 304 move away from each other, the angle between the first connecting rod 302 and the second connecting rod 306 decreases, pulling the top plate 4 downward. The downward movement of the top plate 4 can make the transmission wheel 7 fit the rope wheel more closely.

[0048] S4. Stick the magnetic block 806 on the side wall of the rope pulley close to the position sensor 804, and make the magnetic block 806 be directly above the center line of the rope pulley, start the third servo motor 801, and drive the second screw 802 to rotate. When the second screw 802 rotates, the height of the fine-tuning block 803 changes. When the position of the position sensor 804 and the magnetic block 806 are on the same horizontal line, the position sensor 804 can sense the magnetic block 806. At this time, the signal indicator light 805 emits a light, prompting the user that it has been adjusted to the same horizontal line. At this time, the third servo motor is turned off, and the second servo motor 5 is started synchronously.

[0049] S5. The second servo motor 5 drives the motor rod 6 to rotate, and then drives the transmission wheel 7 to rotate. Since the transmission wheel 7 is in contact with the rope pulley, the rotation of the transmission wheel 7 can drive the rope pulley to rotate, and the contact between the transmission wheel 7 and the rope pulley is tight enough to prevent the loss of transmission energy, so as to ensure that the rotation speed of the transmission wheel 7 and the rope pulley is recorded in this embodiment. For each rotation of the rope pulley, the position sensor 804 can detect the position of the magnetic block 806 once, and then the rate of each rotation of the rope pulley can be calculated and recorded. The data processor inside the base 1 will display the time required for each rotation in a wave-like graph on the surface of the display screen 9 for the staff to observe and record.

[0050] S6. After the detection is completed, the lifting and pressurizing mechanism 3 drives the top plate 4 to move upward, so that the driving wheel 7 is separated from the strong wheel, and then the speed limit rope is placed on the elevator speed governor body 11.

[0051] The parts not specifically described in the above description are all prior art, or can be implemented by prior art. Moreover, the specific implementation cases described in the present invention are only preferred implementation cases of the present invention, and are not used to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent scope of the present invention should be regarded as the technical scope of the present invention.

Claims

1. A high-speed elevator speed limiter detection device, characterized in that: The device comprises a base (1), a lifting and pressurizing mechanism (3), a top plate (4), a second servo motor (5), a transmission wheel (7), a magnetic block (806) and a position sensor (804), wherein the base (1) is arranged on one side of an elevator stopper (11) to be detected, the lifting and pressurizing mechanism (3) is arranged on the base (1), the top plate (4) is mounted on the lifting and pressurizing mechanism (3) and is driven to lift and lower by the lifting and pressurizing mechanism (3), the second servo motor (5) is arranged on the top plate (4), the output shaft of the second servo motor (5) is parallel to the center line of the rope wheel of the elevator stopper (11) to be detected, and the transmission wheel (7) is arranged on the top plate (4). The second servo motor (5) is driven to rotate by the second servo motor (5), the second servo motor (5) and the transmission wheel (7) are synchronously raised and lowered with the raising and lowering of the top plate (4), and are used to adjust the transmission wheel (7) to fit closely with the rope wheel, and the rotation of the transmission wheel (7) is used to drive the rope wheel to rotate, the position sensor (804) is arranged on the top plate (4) on a side facing the transmission wheel (7), the magnetic block (806) is used to be attached to the rope wheel of the elevator limiter (11) to be detected in a use state, and the position sensor (804) cooperates with the magnetic block (806) to detect the rotation rate of the rope wheel.

2. The high-speed elevator speed governor detection device according to claim 1, characterized in that: The lifting and pressurizing mechanism (3) comprises a first servo motor (308), a bidirectional screw rod (305), a first screw rod (309) and two connecting rod mechanisms. The first servo motor (308) is arranged on the base (1). The first screw rod (309) is arranged in a vertical direction, and its bottom end is connected to the output shaft of the first servo motor (308) and is driven to rotate by the first servo motor (308). The two connecting rod mechanisms are symmetrically arranged on both sides of the first screw rod (309). The connecting rod mechanism comprises a first connecting rod (302), a connecting block (304) and a second connecting rod (306). The upper end of the first connecting rod (302) and the lower end of the second connecting rod (306) are both rotatably connected to the connecting block (304). The lower end of a connecting rod (302) is rotatably connected to the base (1), the upper end of a second connecting rod (306) is rotatably connected to the top plate (4), the two ends of the bidirectional screw rod (305) respectively pass through the connecting blocks (304) of the two connecting rod mechanisms and are threadedly engaged with the connecting blocks (304), a transmission gear (310) is fixed to the middle of the bidirectional screw rod (305), the transmission gear (310) is meshed with the first screw rod (309), the first screw rod (309) drives the bidirectional screw rod (305) to rotate, so that the connecting blocks (304) of the two connecting rod mechanisms are synchronously approached or moved away from each other, and the first connecting rod (302) and the second connecting rod (306) rotate relative to each other to drive the top plate (4) to move up and down.

3. The high-speed elevator speed governor detection device according to claim 2, characterized in that: The connecting rod mechanism also includes a first mounting rod (301), two first connecting rods (302) and two second connecting rods (306), the lower ends of the two first connecting rods (302) are fixedly connected to the first mounting rod (301), the first mounting rod (301) is rotatably connected to the base (1), the upper ends of the two first connecting rods (302) are respectively located on both sides of the connecting block (304) and are rotatably connected to the connecting block (304), the lower ends of the two second connecting rods (306) are respectively located on both sides of the connecting block (304) and are rotatably connected to the connecting block (304), and the upper ends of the two second connecting rods (306) are respectively located on both sides of the top plate (4) and are rotatably connected to the top plate (4).

4. The high-speed elevator speed governor detection device according to claim 1, characterized in that: The invention also comprises a fine adjustment mechanism (8), the fine adjustment mechanism (8) comprising a third servo motor (801), a second screw rod (802) and a fine adjustment block (803), the third servo motor (801) being arranged on the top plate (4), the fine adjustment block (803) being arranged on the top plate (4) and forming a vertical movement pair with the top plate (4), the second screw rod (802) passing through the fine adjustment block (803) and being threadedly matched with the fine adjustment block (803), the output shaft of the third servo motor (801) being connected to the second screw rod (802), the third servo motor (801) driving the second screw rod (802) to rotate, and being used for driving the fine adjustment block (803) to move vertically on the top plate (4), and the position sensor (804) being arranged on the fine adjustment block (803) and moving synchronously with the movement of the fine adjustment block (803).

5. The high-speed elevator speed governor detection device according to claim 4, characterized in that: A mounting groove (807) is provided on the top plate (4) on one side close to the rope pulley in the vertical direction. The fine-tuning block (803) is arranged in the mounting groove (807) and has the same cross-sectional shape as the mounting groove (807). Except for the side wall of the fine-tuning block (803) facing the rope pulley, the other three side walls are all in contact with the inner wall of the mounting groove (807). The fine-tuning block (803) moves vertically in the mounting groove (807) and is prevented from rotating by the mounting groove (807).

6. The high-speed elevator speed governor detection device according to claim 1, characterized in that: The device also comprises a positioning mechanism (2), the positioning mechanism (2) comprising a positioning motor (201), a transmission screw (202) and two limit plates (203), the transmission screw (202) passing through the base (1), the two limit plates (203) being respectively arranged at two ends of the transmission screw (202) and threadedly matched with the transmission screw (202), the positioning motor (201) being connected to the transmission screw (202), the positioning motor (201) driving the transmission screw (202) to rotate, and the rotation of the transmission screw (202) is used to synchronously move the two limit plates (203) closer to or farther away from each other.

7. The high-speed elevator speed governor detection device according to claim 6, characterized in that: The positioning mechanism (2) further comprises a limiting rod (204), which is fixed to the base (1) and parallel to the transmission screw (202), and two ends of the limiting rod (204) respectively pass through two limiting plates (203) to prevent the limiting plates (203) from rotating when moving.

8. The high-speed elevator speed governor detection device according to claim 6, characterized in that: A motor fixing slot is provided at the bottom of the base (1), and a positioning motor (201) is arranged in the motor fixing slot. The positioning motor (201) adopts a double-output shaft motor, and the output shafts on both sides of the double-output shaft motor are respectively connected to a transmission screw (202) for driving the two transmission screws (202) to rotate synchronously.

9. The high-speed elevator speed governor detection device according to claim 1, characterized in that: A display screen (9) and a plurality of control buttons (10) are provided on the side of the base (1) away from the rope pulley, for controlling the lifting and lowering of the lifting and pressurizing mechanism (3) and the operation of the second servo motor (5). A data processor is provided in the base (1), and the position sensor 804 and the display screen (9) are both electrically connected to the data processor.

10. A method for detecting a high-speed elevator speed governor, using the high-speed elevator speed governor detection device according to any one of claims 1 to 9, characterized in that: The following steps are included: S1. Take out the speed limit rope from the elevator speed limiter rope wheel, so that the rope wheel of the elevator speed limiter body can idle without the resistance of the speed limit rope, and install the high-speed elevator speed limiter detection device in the center of the side of the elevator speed limiter; S2. Adjust the position of the base (1) so that the transmission wheel (7) is located above the rope wheel, and the center line of the transmission wheel (7) and the midline of the rope wheel are located in the same vertical plane; S3, adjusting the lifting and pressurizing mechanism (3) so that the transmission wheels (7) move downward to fit closely with the rope wheels; S4, attaching the magnetic block (806) to the side of the rope pulley facing the position sensor (804), and making the magnetic block (806) and the position sensor (804) be located on the same horizontal line; S5. Start the second servo motor (5), which drives the rope wheel to rotate via the transmission wheel (7). The position sensor (804) detects the position of the magnetic block (806) once every rotation of the rope wheel, and calculates and records the rotation rate of the rope wheel.

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