CN212722004U - Elevator overspeed governor drawing force experimental apparatus - Google Patents
Elevator overspeed governor drawing force experimental apparatus Download PDFInfo
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- CN212722004U CN212722004U CN202021446613.5U CN202021446613U CN212722004U CN 212722004 U CN212722004 U CN 212722004U CN 202021446613 U CN202021446613 U CN 202021446613U CN 212722004 U CN212722004 U CN 212722004U
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- movable plate
- cabinet
- control system
- balancing weight
- speed limiter
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Abstract
The utility model discloses an elevator speed limiter drawing force experimental device, belonging to the field of elevator accessory detection, which comprises a cabinet, a control system arranged in the cabinet and a display arranged outside the cabinet and connected with the control system; the bottom surface of the interior of the cabinet is fixedly provided with a mounting plate, a movable plate and a balancing weight which can vertically move up and down are arranged above the mounting plate, and the movable plate and the balancing weight move in a reverse action manner; the rope roller is arranged at the position, corresponding to the position under the movable plate, above the mounting plate, the servo motor connected with the control system is arranged at one end of the rope roller, the servo motor is fixedly mounted on the mounting plate, and an output shaft of the servo motor is fixedly connected with the rope roller. The elevator speed limiter drawing force experiment device is simple in structure and convenient to use, adopts automatic control testing, is accurate in testing and stable in working, and can effectively improve the efficiency of elevator speed limiter drawing force testing.
Description
Technical Field
The utility model belongs to the technical field of the elevator accessory detects, concretely relates to elevator overspeed governor drawing force experimental apparatus.
Background
An elevator speed limiter is one of safety control components in an elevator safety protection system. When the elevator is in operation, no matter what reason causes the car to overspeed or even to fall, and all other safety protection devices do not work, the speed limiter and the safety tongs perform linkage action to stop the elevator car.
The elevator speed limiter is one of safety control elements of the elevator, and the quality of the elevator speed limiter seriously affects the use safety of the elevator; GB7588-2003 Elevator manufacturing and installation safety code stipulates: when the speed limiter acts, the tension of the speed limiter rope is not less than the following two values:
a) twice the force required for the safety gear to function;
b) the minimum breaking load of the governor is related to the tension of the governor rope generated when the governor is operated, and the safety factor thereof should not be less than 8 ".
The existing elevator speed limiter drawing force experiment device generally depends on manual operation, and the efficiency of the elevator speed limiter drawing force test is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an elevator overspeed governor drawing force experimental apparatus to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an elevator speed limiter pulling force experiment device comprises a cabinet, a control system and a display, wherein the control system is placed in the cabinet, and the display is placed outside the cabinet and connected with the control system;
the bottom surface in the cabinet is fixedly provided with a mounting plate, a movable plate and a balancing weight which can vertically move up and down are arranged above the mounting plate, and the movable plate and the balancing weight move in a reverse action manner;
a rope roller is arranged above the mounting plate and corresponds to the position right below the movable plate, a servo motor connected with the control system is arranged at one end of the rope roller, the servo motor is fixedly mounted on the mounting plate, and an output shaft of the servo motor is fixedly connected with the rope roller;
pulleys are arranged on the inner top surface of the cabinet and are arranged right above the movable plate and the counterweight block;
first pull ropes are arranged between the rope roller and the movable plate and between the movable plate and the balancing weight, one end of each first pull rope between the movable plate and the balancing weight is connected with the movable plate, and the other end of each first pull rope is connected with the balancing weight by winding the two pulleys;
the upper surface of fly leaf fixed mounting have with the tension sensor that control system links to each other, the inside of rack is provided with to heavy hanger, the fly leaf with be provided with the second stay cord between to heavy hanger, the one end of second stay cord with tension sensor keeps away from the one end of fly leaf links to each other, and the other end links to each other with to heavy hanger with the rope sheave around the stopper.
Preferably, the positions of the inside of the cabinet corresponding to the upper part and the lower part of the movable plate and the upper part and the lower part of the balancing weight are provided with travel switches connected with the control system.
Preferably, the top surface of the cabinet is fixedly provided with a hoisting plate, and four corners of the hoisting plate are provided with hoisting rings.
Preferably, the mounting plate is fixedly provided with a first guide rod and a second guide rod which respectively longitudinally penetrate through the movable plate and the counterweight block.
Preferably, one end of the rope roller, which is far away from the servo motor, is provided with a bearing seat for supporting the rope roller.
Preferably, the tension sensor is an S-shaped tension sensor.
The elevator speed limiter drawing force experiment device is simple in structure and convenient to use, adopts automatic control testing, is accurate in testing and stable in working, and can effectively improve the efficiency of elevator speed limiter drawing force testing.
Drawings
FIG. 1 is a schematic structural diagram of an elevator speed limiter pulling force experimental device;
FIG. 2 is a schematic cross-sectional structural view of an elevator governor pulling force experimental apparatus;
fig. 3 is a system architecture diagram of an elevator speed limiter pulling force experimental device.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.
As shown in fig. 1 and 2, the utility model provides an experimental device for the pulling force of an elevator speed limiter, which comprises a cabinet 1, a control system 2 arranged in the cabinet 1, and a display 3 arranged outside the cabinet 1 and connected with the control system 2;
a mounting plate 4 is fixedly mounted on the bottom surface inside the cabinet 1, a movable plate 5 and a balancing weight 6 which can vertically move up and down are mounted above the mounting plate 4, and the movable plate 5 and the balancing weight 6 mutually move in a reverse action manner;
a rope roller 8 is arranged above the mounting plate 4 corresponding to the position right below the movable plate 5, a servo motor 7 connected with the control system 2 is arranged at one end of the rope roller 8, the servo motor 7 is fixedly mounted on the mounting plate 4, and an output shaft of the servo motor 7 is fixedly connected with the rope roller 8;
the internal top surface of the cabinet 1 is provided with pulleys 12 corresponding to the movable plate 5 and the counterweight block 6;
the upper surface of the movable plate 5 is fixedly provided with a tension sensor 13 connected with the control system 2, the inside of the cabinet 1 is provided with a counterweight hanger 11, a second pull rope 10 is arranged between the movable plate 5 and the counterweight hanger 11, one end of the second pull rope 10 is connected with one end of the tension sensor 13 far away from the movable plate 5, and the other end of the second pull rope is connected with a rope wheel wound around a limiter and the counterweight hanger 11.
Wherein, the tension sensor 13 is an S-shaped tension sensor.
When the speed limiter is used, the speed limiter is placed on the cabinet 1, the second pull rope 10 is wound on a wire wheel of the speed limiter, and a counterweight block is placed on the counterweight hanging tool 8; the control system 2 controls the servo motor 7 to start, drives the rope roller 8 to rotate, and winds the first pull rope 9, so that the first pull rope 9 pulls the movable plate 5 to move downwards, at the moment, the movable plate 5 pulls the counterweight block 6 to move upwards through the other first pull rope 9, and simultaneously pulls the second pull rope 10 to move, and under the action of a counterweight block on the counterweight hanger 11, a wire wheel of the speed limiter is driven to rotate; after the movable plate 5 reaches the limited position, the control system 2 controls the servo motor 7 to rotate reversely, so that the rope pulley 8 releases the first pull rope 9, and the rope pulley of the elevator limiter is reversed under the action of gravity of a counterweight on the counterweight hanging tool 11, so that the pulling force of the elevator speed limiter is tested; in the testing process, the tension sensor 13 records the threshold value of the tension value in the experiment and sends the threshold value to the control system 2, the threshold value is processed by the control system 2 and then sent to the display 3 to be displayed, meanwhile, the control system 2 compares the detected tension threshold value with the set threshold value of a qualified product to judge whether the product is qualified, and meanwhile, the display 3 displays and outputs the judgment result, so that the detection work of the tension of the elevator speed limiter is completed.
As shown in fig. 2, the inside of the cabinet 1 is provided with a travel switch 14 connected to the control system 2 at a position above and below the movable plate 5 and above and below the counterweight block 6. Therefore, in the process of pulling the first rope pulley 9, the movable plate 5 moves upwards, the counterweight block 6 moves downwards, after the movable plate 5 is contacted with a contact of the travel switch 14 above the movable plate 5 or the counterweight block 6 is contacted with a contact of the travel switch 14 below the counterweight block 6, the travel switch 14 is triggered and transmits a trigger signal to the control system 2, the control system 2 controls the servo motor 7 to reversely rotate to release the first pull rope 9, so that the movable plate 5 moves downwards and the counterweight block 6 moves upwards, and after the movable plate 5 is contacted with a contact of the travel switch 14 below the movable plate 5 or the counterweight block 6 is contacted with a contact of the travel switch 14 above the counterweight block 6, the control system 2 controls the servo motor 7 to stop working, so that the pulling force test work of the elevator speed limiter is completed; the automatic control mode is adopted to test the drawing force of the elevator speed limiter, so that the efficiency of the elevator speed limiter test can be effectively improved.
As shown in fig. 3, the control system 2 includes a central processing unit, a storage module connected to the central processing unit, and a calculation and comparison module; the display 3, the servo motor 7, the tension sensor 13 and the travel switch 14 are all connected with the central processing unit. When detecting, carry the pulling force threshold value that detects to central processing unit in through force sensor 13, handle through central processing unit and then send this pulling force threshold value to display 3 in and show, central processing unit transfers the pulling force threshold value of the qualified product that prestores in the memory to calculate simultaneously and compares, judges whether the product accords with the standard, and send the judged result to display 3 through central processing unit and go up the demonstration, make the detection personnel can audio-visually see the testing result of product.
As shown in fig. 1 and 2, a hanging plate 18 is fixedly mounted on the top surface of the cabinet 1, and hanging rings 19 are disposed at four corners of the hanging plate 18. Therefore, when the lifting and moving are carried out, the hook can be hung on the hanging ring 19 to lift the equipment, and a hanging and placing supporting point is provided for the external hook or the hanging rope through the lifting plate 18 and the hanging ring 19, so that the equipment is more convenient to move and install.
As shown in fig. 1 and 2, a first guide rod 16 and a second guide rod 15 are fixedly mounted on the mounting plate 4 and respectively penetrate through the movable plate 5 and the counterweight 6 in the longitudinal direction. The movable plate 5 and the counterweight 6 slide on the first guide rod 16 and the second guide rod 15, respectively; therefore, when the movable plate 5 and the counterweight block 6 move, the movable plate 5 and the counterweight block 6 are guided by the first guide rod 16 and the second guide rod 15 respectively, so that the movable plate 5 and the counterweight block 6 can stably run, and the movable plate 5 and the counterweight block 6 are prevented from directly hanging to shake to influence the accuracy of the drawing force test.
As shown in fig. 1 and 2, an end of the rope roller 8 remote from the servomotor 7 is provided with a bearing housing 17 for supporting the rope roller 8. One end of the rope roller 8 is fixed with an output shaft of the servo motor 7, and the other end is rotatably arranged on a bearing seat 17; therefore, the other end of the rope roller 8 is supported by the bearing seat 17, so that the rope roller 8 is kept stable, and the excessive stress of the end part of the rope roller 8 far away from one end of the servo motor 7, which is caused by the overlong output shaft and the rope roller 8, is avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an elevator overspeed governor pulling force experimental apparatus which characterized in that: the experimental device comprises a cabinet (1), a control system (2) arranged in the cabinet (1) and a display (3) arranged outside the cabinet (1) and connected with the control system (2);
a mounting plate (4) is fixedly mounted on the bottom surface inside the cabinet (1), a movable plate (5) and a balancing weight (6) which can vertically move up and down are mounted above the mounting plate (4), and the movable plate (5) and the balancing weight (6) move in a mutually reverse action manner;
a rope roller (8) is arranged above the mounting plate (4) and corresponds to the position right below the movable plate (5), a servo motor (7) connected with the control system (2) is arranged at one end of the rope roller (8), the servo motor (7) is fixedly mounted on the mounting plate (4), and an output shaft of the servo motor (7) is fixedly connected with the rope roller (8);
pulleys (12) are arranged on the inner top surface of the cabinet (1) and are arranged right above the movable plate (5) and the counterweight block (6);
first pull ropes (9) are arranged between the rope roller (8) and the movable plate (5) and between the movable plate (5) and the balancing weight (6), one end of each first pull rope (9) between the movable plate (5) and the balancing weight (6) is connected with the movable plate (5), and the other end of each first pull rope (9) is connected with the balancing weight (6) around the two pulleys (12);
the last fixed surface of fly leaf (5) install with tension sensor (13) that control system (2) link to each other, the inside of rack (1) is provided with to heavy hanger (11), fly leaf (5) with be provided with second stay cord (10) to heavy hanger (11) between, the one end of second stay cord (10) with tension sensor (13) is kept away from the one end of fly leaf (5) links to each other, and the other end links to each other with to heavy hanger (11) with around the rope sheave of stopper.
2. The elevator speed limiter pulling force experimental device of claim 1, characterized in that: travel switches (14) connected with the control system (2) are arranged in the cabinet (1) corresponding to the positions above and below the movable plate (5) and the positions above and below the balancing weight (6).
3. The elevator speed limiter pulling force experimental device of claim 1, characterized in that: the top surface of the cabinet (1) is fixedly provided with a hoisting plate (18), and four corners of the hoisting plate (18) are provided with hoisting rings (19).
4. The elevator speed limiter pulling force experimental device of claim 1, characterized in that: and a first guide rod (16) and a second guide rod (15) which respectively longitudinally penetrate through the movable plate (5) and the balancing weight (6) are fixedly installed on the installation plate (4).
5. The elevator speed limiter pulling force experimental device of claim 1, characterized in that: one end of the rope roller (8) far away from the servo motor (7) is provided with a bearing seat (17) used for supporting the rope roller (8).
6. The elevator speed limiter pulling force experimental device of claim 1, characterized in that: the tension sensor (13) is an S-shaped tension sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446613.5U CN212722004U (en) | 2020-07-21 | 2020-07-21 | Elevator overspeed governor drawing force experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446613.5U CN212722004U (en) | 2020-07-21 | 2020-07-21 | Elevator overspeed governor drawing force experimental apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212722004U true CN212722004U (en) | 2021-03-16 |
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ID=74907941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021446613.5U Active CN212722004U (en) | 2020-07-21 | 2020-07-21 | Elevator overspeed governor drawing force experimental apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212722004U (en) |
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2020
- 2020-07-21 CN CN202021446613.5U patent/CN212722004U/en active Active
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