CN117923267A - Method for automatically testing unilateral band-type brake of traction machine outside hoistway - Google Patents
Method for automatically testing unilateral band-type brake of traction machine outside hoistway Download PDFInfo
- Publication number
- CN117923267A CN117923267A CN202410207768.XA CN202410207768A CN117923267A CN 117923267 A CN117923267 A CN 117923267A CN 202410207768 A CN202410207768 A CN 202410207768A CN 117923267 A CN117923267 A CN 117923267A
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- Prior art keywords
- band
- type brake
- contactor
- brake
- output point
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000003068 static effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/005—Force, torque, stress or strain
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a method for automatically testing a single-side band-type brake of a traction machine outside a hoistway, which is realized by a circuit formed by three groups of input points, three groups of output points and three contactors of a main board, wherein the three contactors comprise a first band-type brake contactor, a second band-type brake contactor and an operating contactor, the first band-type brake contactor, the second band-type brake contactor and the operating contactor are connected to a DC24V input power supply in parallel, the first input point and the first output point of the main board are connected with the operating contactor, the second input point and the second output point of the main board are connected with the first band-type brake contactor, and the third input point and the third output point of the main board are connected with the second band-type brake contactor. The invention can realize the unilateral detection of the band-type brake, ensure that when the unilateral band-type brake of the traction machine has a problem, the elevator can be reliably stopped by only the band-type brake on the other side, and the detection of the working state of the unilateral band-type brake and the band-type brake moment can be realized without giving out rated moment or being higher than the rated moment, thereby greatly reducing the current and the heating of the motor.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a method for automatically testing a single-side band-type brake of a traction machine outside a well.
Background
The band-type brake of the elevator is an important device for keeping the elevator in a static state when the elevator stops running, and in actual use, particularly in the elevator using a gearless motor, if the band-type brake is insufficient in torque due to abrasion, the elevator can slip and push to the top to generate a safety accident. Therefore, the elevator brake needs to be periodically checked whether the elevator brake can reliably brake.
At present, some elevators are provided with left and right double-sided band-type brakes, all manufacturers detect the band-type brakes on two sides simultaneously, namely, the band-type brakes on two sides are not opened, the system gives rated moment of 150% to the maximum, and the displacement condition of a traction sheave is detected to judge whether the band-type brakes are normal or not. However, the torque detection cannot detect one side of the brake, so that a fault detector of the one side brake cannot know easily. The current and the heat of the motor are improved, and the damage to the motor is easily caused.
Disclosure of Invention
The invention mainly solves the problems that in the prior art, whether the single-sided band-type brake fails or not can not be known, and the motor is damaged due to the fact that the motor current and heat are increased by simultaneously detecting the double-sided band-type brake, and provides a method for automatically testing the single-sided band-type brake of the traction machine outside a well.
The technical scheme of the invention is as follows:
The utility model provides a method for outside automatic test hauler unilateral band-type brake of well, is realized through the circuit that three groups of input point, three groups of output point and three contactors of mainboard constitute, three groups of input point include first input point, second input point and third input point, three groups of output point include first output point, second output point and third output point, three contactors include first band-type brake contactor, second band-type brake contactor and operation contactor, first band-type brake contactor, second band-type brake contactor, operation contactor parallel connection to DC24V input power, the first input point and the first output point of mainboard are connected with operation contactor, the second input point and the second output point of mainboard are connected with first band-type brake contactor, the third input point and the third output point of mainboard are connected with second band-type brake contactor, through the normal open brake of mainboard program control first band-type brake contactor, second band-type brake contactor and operation contactor's coil power, normal open brake of brake and operation contactor, normal open brake of the first band-type brake of traction motor can be passed through the unilateral brake of first band-type brake contactor and the first band-type brake of traction motor and the second band-type brake of first band-type brake of contact, and normal open brake of the first band-type brake of traction motor normally open brake normally open on the first band-stop contactor and the first band-type brake of the first side contactor and the second band-type brake of the first band-stop contact test brake of the first side normally open brake of the first band-stop contact test device when the first band-stop contact and the first band-stop contact of the first band-stop contact and the first band brake of the first band-stop contact test brake of the one side contact test brake side test device and the first normally contacts, and the normally open brake contact test device of the one side contact test device and test device of the one side test device and test device.
Further, the single-side braking force test comprises a static braking force test and a dynamic braking force test.
Further, the static braking force test comprises the following steps:
(1) The first output point and the second output point of the main board are output, the first band-type brake contactor and the operating contactor coil are electrified, the first normally open contact and the second normally open contact of the first band-type brake contactor are closed, the first normally open contact of the operating contactor is closed, the band-type brake A coil of the traction machine is electrified and opened, and a single-side band-type brake test is carried out;
(2) After the test is qualified, the first output point and the third output point of the main board are output, the second band-type brake contactor and the running contactor coil are electrified, the first normally-open contact and the second normally-open contact of the second band-type brake contactor are closed, the second normally-open contact of the running contactor is closed, the band-type brake B coil of the traction machine is electrified and opened, and the band-type brake test on the other side is performed.
If the test in the step (1) is not qualified, the elevator reports a fault, and the test in the step (2) is not performed.
Further, the dynamic braking force test needs to automatically select the band-type brake A or the band-type brake B for testing, and the method comprises the following steps:
(1) The first output point, the second output point and the third output point of the main board are all output, the first band-type brake contactor, the second band-type brake contactor and the operation contactor are all powered, the normally open contacts of the first band-type brake contactor, the second band-type brake contactor and the operation contactor are all closed, and the band-type brake A coil and the band-type brake B coil of the traction machine are all powered;
(2) When the elevator runs to the rated speed, the second output point or the third output point of the main board stops outputting, the coil of the first band-type brake contactor or the coil of the second band-type brake contactor is powered off, the first normally open contact and the second normally open contact of the first band-type brake contactor or the second band-type brake contactor are released, the band-type brake A coil or the band-type brake B coil of the traction machine is powered off and is braked down, the elevator is braked down through the band-type brake A or the band-type brake B, the feedback speed in 3s is less than 0.02m/s, the test is considered to be successful, otherwise, the elevator reports faults and cannot run.
Compared with the prior art, the invention has the beneficial effects that: the single-side detection of the band-type brake can be realized, when the problem of the single-side band-type brake of the traction machine is solved, the elevator can be reliably stopped only by the band-type brake on the other side, the detection of the working state of the single-side band-type brake and the band-type brake moment can be achieved without giving rated moment or being higher than the rated moment, the current and the heat of the motor are greatly reduced, and the damage to the motor and the frequency converter is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a circuit connection of the present invention;
fig. 2 is an electrical schematic of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In order to illustrate the technical scheme of the invention, the following description is made by specific examples.
Examples
The embodiment provides a method for automatically testing a single-side band-type brake of a traction machine outside a hoistway, which is realized by a circuit formed by three groups of input points, three groups of output points and three contactors of a main board, wherein the three groups of input points comprise a first input point, a second input point and a third input point, the three groups of output points comprise a first output point, a second output point and a third output point, the three contactors comprise a first band-type brake contactor, a second band-type brake contactor and an operating contactor, the first band-type brake contactor, the second band-type brake contactor and the operating contactor are connected to a DC24V input power supply in parallel, the first input point and the first output point of the main board are connected with the operating contactor, the second input point and the second output point of the main board are connected with the first band-type brake contactor, and the third input point and the third output point of the main board are connected with the second band-type brake contactor.
The electrical principle is as shown in fig. 2, the first band-type brake contactor, the second band-type brake contactor and the coil power supply of the operation contactor are controlled through a main board program, the power supply of one side band-type brake A of the tractor brake is controlled through the first normally-open contact and the second normally-open contact of the first band-type brake contactor and the first normally-open contact of the operation contactor, and the power supply of the other side band-type brake B of the tractor brake is controlled through the first normally-open contact and the second normally-open contact of the second band-type brake contactor and the second normally-open contact of the operation contactor.
When a tester wants to verify the unilateral braking force of the traction machine, the tester can enter the unilateral braking force test only by setting parameters on the main board, and the unilateral braking force test comprises a static braking force test and a dynamic braking force test:
A. When the static braking force test is selected:
(1) The first output point and the second output point of the main board are output, the first band-type brake contactor and the operating contactor coil are electrified, the first normally open contact and the second normally open contact of the first band-type brake contactor are closed, the first normally open contact of the operating contactor is closed, the band-type brake A coil of the traction machine is electrified and opened, and a single-side band-type brake test is carried out;
(2) After the test is qualified, the first output point and the third output point of the main board are output, the second band-type brake contactor and the running contactor coil are electrified, the first normally-open contact and the second normally-open contact of the second band-type brake contactor are closed, the second normally-open contact of the running contactor is closed, the band-type brake B coil of the traction machine is electrified and opened, and the band-type brake test on the other side is performed.
If the test in the step (1) is not qualified, the elevator reports a fault, the test in the step (2) is not performed, and the test in the step (2) is performed only when the test in the step (1) is qualified;
B. when the dynamic braking force test is selected, after the dynamic braking force test is selected, the band-type brake A or the band-type brake B is selected for testing:
(1) The elevator starts to operate, the first output point, the second output point and the third output point of the main board are all output, the first band-type brake contactor, the second band-type brake contactor and the operation contactor are all powered, the normally open contacts of the first band-type brake contactor, the second band-type brake contactor and the operation contactor are all closed, and the band-type brake A coil and the band-type brake B coil of the traction machine are all powered;
(2) When the elevator runs to the rated speed, the second output point or the third output point of the main board stops outputting, the coil of the first band-type brake contactor or the coil of the second band-type brake contactor is powered off, the first normally open contact and the second normally open contact of the first band-type brake contactor or the second band-type brake contactor are released, the band-type brake A coil or the band-type brake B coil of the traction machine is powered off and is braked down, the elevator is braked down through the band-type brake A or the band-type brake B, the feedback speed in 3s is less than 0.02m/s, the test is considered to be successful, otherwise, the elevator reports faults and cannot run.
In addition, three groups of input points of the main board respectively detect whether three contactors are normal or not; if the contactor feedback input signal received by the main board is abnormal, the elevator can not run. Such as: when the elevator is in a stop state, the coil of the running contactor is powered off, the normally closed contact of the running contactor is closed, a signal is arranged at the first input point of the main board, and the elevator is normal; otherwise, if the first input point of the main board has no input, the operation contactor is considered to be stuck, the elevator fails, the operation cannot be performed, and the like.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. The method for automatically testing the single-side band-type brake of the traction machine outside the hoistway is characterized by being realized through a circuit formed by three groups of input points, three groups of output points and three contactors of a main board, wherein the three groups of input points comprise a first input point, a second input point and a third input point, the three groups of output points comprise a first output point, a second output point and a third output point, the three contactors comprise a first band-type brake contactor, a second band-type brake contactor and an operating contactor, the first band-type brake contactor, the second band-type brake contactor and the operating contactor are connected to a DC24V input power supply in parallel, the first input point and the first output point of the main board are connected with the operating contactor, the second input point and the second output point of the main board are connected with the first band-type brake contactor, the third input point and the third output point of the main board are connected with the second band-type brake contactor, a coil power supply of the first band-type brake contactor, the second band-type brake contactor and the operating contactor are controlled through a main board program, and a normally open brake force of the normally open brake is verified when the first band-type brake contactor and the second band-type brake contact enter a normally open brake of the first band-type brake of the traction machine and the second band-type brake of the traction machine are tested, and a normally open brake of the traction machine is normally open on the first band-type brake is tested, and the normally open brake of the first band-type brake is normally open on the first band-type brake contact and the first band-type brake contact is tested, and the normally open brake is normally on the first band-type brake contact, and the first band-type brake is normally-open, and normally open brake is tested.
2. The method for automatically testing the single-sided brake of the traction machine outside a hoistway according to claim 1, wherein the single-sided brake force test comprises a static brake force test and a dynamic brake force test.
3. The method for automatically testing the single-sided brake of the traction machine outside a hoistway according to claim 2, wherein the static braking force test comprises the following steps:
(1) The first output point and the second output point of the main board are output, the first band-type brake contactor and the operating contactor coil are electrified, the first normally open contact and the second normally open contact of the first band-type brake contactor are closed, the first normally open contact of the operating contactor is closed, the band-type brake A coil of the traction machine is electrified and opened, and a single-side band-type brake test is carried out;
(2) After the test is qualified, the first output point and the third output point of the main board are output, the second band-type brake contactor and the running contactor coil are electrified, the first normally-open contact and the second normally-open contact of the second band-type brake contactor are closed, the second normally-open contact of the running contactor is closed, the band-type brake B coil of the traction machine is electrified and opened, and the band-type brake test on the other side is performed.
4. The method for automatically testing the single-sided brake of the traction machine outside a hoistway according to claim 3, wherein if the test in the step (1) is failed, the elevator reports a fault, and the test in the step (2) is not performed.
5. The method for automatically testing the single-sided brake of the traction machine outside the hoistway according to claim 2, wherein the dynamic braking force test needs to automatically select the brake a or the brake B for testing, and the method comprises the following steps:
(1) The first output point, the second output point and the third output point of the main board are all output, the first band-type brake contactor, the second band-type brake contactor and the operation contactor are all powered, the normally open contacts of the first band-type brake contactor, the second band-type brake contactor and the operation contactor are all closed, and the band-type brake A coil and the band-type brake B coil of the traction machine are all powered;
(2) When the elevator runs to the rated speed, the second output point or the third output point of the main board stops outputting, the coil of the first band-type brake contactor or the coil of the second band-type brake contactor is powered off, the first normally open contact and the second normally open contact of the first band-type brake contactor or the second band-type brake contactor are released, the band-type brake A coil or the band-type brake B coil of the traction machine is powered off and is braked down, the elevator is braked down through the band-type brake A or the band-type brake B, the feedback speed in 3s is less than 0.02m/s, the test is considered to be successful, otherwise, the elevator reports faults and cannot run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410207768.XA CN117923267A (en) | 2024-02-26 | 2024-02-26 | Method for automatically testing unilateral band-type brake of traction machine outside hoistway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410207768.XA CN117923267A (en) | 2024-02-26 | 2024-02-26 | Method for automatically testing unilateral band-type brake of traction machine outside hoistway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117923267A true CN117923267A (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410207768.XA Pending CN117923267A (en) | 2024-02-26 | 2024-02-26 | Method for automatically testing unilateral band-type brake of traction machine outside hoistway |
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| Country | Link |
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| CN (1) | CN117923267A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118330371A (en) * | 2024-06-12 | 2024-07-12 | 申龙电梯股份有限公司 | Elevator traction machine band-type brake single-group braking part detection device and detection method thereof |
-
2024
- 2024-02-26 CN CN202410207768.XA patent/CN117923267A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118330371A (en) * | 2024-06-12 | 2024-07-12 | 申龙电梯股份有限公司 | Elevator traction machine band-type brake single-group braking part detection device and detection method thereof |
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