CN106672727A - Rapid detection instrument and method for braking capability of elevator - Google Patents
Rapid detection instrument and method for braking capability of elevator Download PDFInfo
- Publication number
- CN106672727A CN106672727A CN201710066900.XA CN201710066900A CN106672727A CN 106672727 A CN106672727 A CN 106672727A CN 201710066900 A CN201710066900 A CN 201710066900A CN 106672727 A CN106672727 A CN 106672727A
- Authority
- CN
- China
- Prior art keywords
- elevator
- instrument
- rapid detection
- detection apparatus
- current sensor
- Prior art date
- 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
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Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
- G01P3/54—Devices characterised by the use of electric or magnetic means for measuring linear speed by measuring frequency of generated current or voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
Abstract
The invention discloses a rapid detection instrument and method for braking capability of an elevator. When the instrument is running, a clamp current sensor obtains a current signal of a main circuit of the elevator; when the power is cut off, the main circuit is also powered off, the clamp current sensor can obtain a current signal that current is suddenly reduced to 0; at this time, a single chip microcomputer sends an instruction to enable a wire rope speed detection device begins to calculate pulse signals till the running of the elevator is stopped completely, and the speed detection device can also stop rotating, the counting of pulse quantity can stop immediately; the rapid detection instrument calculates a breaking distance, a deceleration and a maximum deceleration of the elevator according to measured coded pulse signals. According to the automatic instrument and measuring method, the measuring precision is high, the speed is fast, and manpower is greatly saved, and the problem of detecting the braking capability of the elevator is solved effectively.
Description
Technical field
The present invention relates to elevator brake is apart from detection technique, more particularly to a kind of elevator brake ability rapid detection apparatus and
Method.
Background technology
Along with the raising of social economy's level, in daily life with production, the application of elevator is also increasingly
Extensively, elevator is used as a kind of special equipment of carrying individuals, and its security performance is particularly significant.Elevator brake ability, is to weigh electricity
One significant data of terraced security performance.And want to guarantee elevator runs it is normal with it is reliable, just have to reach certain braking
Ability.Again easily causing steel wire rope on the traction sheave there are slippage problems if elevator brake ability is inadequate, causes to slip then
The generation of terraced accident.
Convenient, accurate, the quick data such as braking distance and deceleration of elevator degree that must obtain are the weights for judging elevator brake ability
Will foundation.Conventional measuring method also has the shortcomings that certainty of measurement is poor, big by operator's subjective judgment influence degree,
The needs of current social are not adapted to.Therefore, it is highly desirable to study, develops a kind of advanced, practical escalator and automatically
Footpath test instrunment.
Therefore, the present invention have developed a kind of elevator brake ability rapid detection apparatus according to the problems referred to above, using encoder
The characteristics of high precision, obtains displacement signal, then calculates disposal ability by the powerful data of single-chip microcomputer, greatly improves measurement
Precision, the exploitation of the test instrunment plays a role in promoting to improving inspection body's detection quality.
The content of the invention
The present invention seeks to：A kind of elevator brake ability rapid detection apparatus and method are provided, certainty of measurement is high, speed
Hurry up, greatly save manpower, a difficult problem for the effectively solving elevator inspection project.
The technical scheme is that：A kind of elevator brake ability rapid detection apparatus, including instrument host, tachometric survey
Device, pincerlike current sensor, display and button, the velocity measuring device, pincerlike current sensor, display and button
It is connected with instrument host, is separately provided between the velocity measuring device, pincerlike current sensor and the instrument host, it
Between be attached by data wire, the display and button both can be a parts for instrument host, it is also possible to by external
Mode be connected with the instrument host；Wherein：
The instrument host is used for receiving and transmitting signal, and controls the detecting instrument operation；
The pincerlike current sensor is used to obtain the current signal of elevator major loop；
The velocity measuring device is used for survey calculation pulse signal；
The display is used to show the data of elevator brake distance, deceleration and maximum deceleration.
Further, the instrument host includes a host housing, and host housing is built-in with central processing unit, circuit main board
And power module.
Further, the button and the display are arranged on the host housing.
Further, the central processing unit is single-chip microcomputer.
Further, the button includes switch, starts to measure, stops three buttons, for controlling the detecting instrument.
Further, the speed detector includes a magnetic bases and an encoder, and the magnetic bases are adsorbed in
On the steel construction of the elevator main near steel wire rope, the encoder is arranged on the magnetic bases and connects with the steel wire rope
Touch, the survey calculation of line-pulse signal is rotated under the drive of steel wire rope.
Further, the encoder be 10 encoders, that is, encoder rotate a circle needs 1024 pulses, compile
Code device often walks a pulse, only about 0.35 degree of the angle of its rotation.
Invention also provides the method that above-mentioned detecting instrument detects elevator brake ability, comprises the steps：
Step 1：By elevator calling to top, elevator master switch is then turned off, it is ensured that elevator is in run-stopping status；
Step 2：Pincerlike current sensor, velocity measuring device are connected with instrument host respectively；
Step 3：Under elevator halted state, the magnetic bases of velocity measuring device are adsorbed into the elevator main near steel wire rope
Steel construction on, and the encoder of governing speed detection means makes it be close to steel wire rope；
Step 4：Pincerlike current sensor is vised into a phase of elevator main input；
Step 5：Confirm to install it is errorless after, combined floodgate elevator master switch makes elevator bring into operation, and starts the detecting instrument and start
Detection；
Step 6：Elevator is called to the bottom by top, when being run with normal speed in travel of elevator (lift) upper extent, is broken
Open elevator master switch；
Step 7：The elevator rear detecting instrument completely out of service is waited to show elevator brake distance, deceleration and maximum automatically
Deceleration；
Step 8：Recover elevator master switch so that elevator recovers normal operating condition.
Refer in wherein described travel of elevator (lift) upper extent in the range of the upper semisection of lifting height of lift.
The principle of detecting instrument of the present invention detection elevator brake ability for set lift car braking distance as, circle
Taking turns radius is, circle wheel rotates a circle needsIndividual pulse, needs altogether from elevator major loop down to stopIndividual pulse, elevator
Braking distance isFor：
The starting point for taking calculating umber of pulse is the key of the present invention, and pincerlike current sensor obtains the electric current letter of elevator major loop
Number, wait when power source, major loop also can power-off, pincerlike current sensor can obtain electric current be reduced to suddenly 0 electric current letter
Number, now by instrument host send instruction allow encoder start calculate pulse signal, until elevator it is completely out of service, now
Speed detector also can and then stop operating, and the calculating of number of pulses can stop immediately, and the detecting instrument is according to measuring
Coded pulse signal, to the braking distance for calculating elevator.
It is an advantage of the invention that：
The measuring instrument compact conformation, design is simple；Meanwhile, test instrunment of the present invention is easy to use, using single-chip microcomputer
Powerful data are calculated and processing function, and by software programming, realization is fast, accurately measured.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Fig. 1 is the scheme of installation of detecting instrument of the present invention；
Fig. 2 is the hardware composition figure of detecting instrument of the present invention；
Wherein：1 elevator main；2 steel wire ropes；3 cars；4 counterweights；5 pincerlike current sensors；6 instrument hosts；7 magnetic bases；8
Encoder.
Specific embodiment
Embodiment：With reference to shown in accompanying drawing 1-2, a kind of elevator brake ability rapid detection apparatus that the present invention is provided are carried out
It is explained as follows：A kind of elevator brake ability rapid detection apparatus, including：Instrument host 6, velocity measuring device, pincerlike electric current are passed
Sensor 5, display and button, the velocity measuring device, pincerlike current sensor 5, display and button with instrument host 6
Between electrically connect；
Wherein described instrument host 6 includes a host housing, built with central processing unit, circuit main board and power module；It is described
Display and button are set together with the instrument host, are arranged on the host housing, or individually placed；
The pincerlike current sensor 5 is used to obtain the current signal of elevator major loop；
The velocity measuring device is used for survey calculation pulse signal, including a magnetic bases 7 and an encoder 8, the magnetic
Base 7 is adsorbed on the steel construction of the elevator main 1 near steel wire rope 2, and the encoder 8 is arranged on the magnetic bases 7
And be in close contact with the steel wire rope 2, the survey calculation of line-pulse signal is rotated under the drive of steel wire rope 2；
In the present embodiment, the display shows the data of elevator brake distance, deceleration and maximum deceleration.
In the present embodiment, the button includes switch, starts to measure, stops three buttons, for controlling the detection
Instrument.
The principle of detecting instrument of the present invention detection elevator brake ability for set the braking distance of lift car 3 as, circle
Taking turns radius is, circle wheel rotates a circle needsIndividual pulse, needs altogether from elevator major loop down to stopIndividual pulse, elevator
Braking distance isFor：
The starting point for taking calculating umber of pulse is the key of the present invention, and pincerlike current sensor 5 obtains the electric current letter of elevator major loop
Number, and be sent to instrument host through signal processing, wait when power source, major loop also can power-off, pincerlike current sensor 5
The current signal that electric current is reduced to suddenly 0 can be obtained, now instruction is sent by instrument host and is allowed encoder 8 to start to calculate pulse
Signal, until elevator is completely out of service, now speed detector also can and then stop operating, and the calculating of number of pulses can stand
Stop, the detecting instrument is sent to instrument host according to the coded pulse signal for measuring after signal processing, use
To calculate the braking distance of elevator, elevator brake distance, deceleration and maximum deceleration now can will can be shown on display
Data.
In the present embodiment, the central processing unit is single-chip microcomputer.
In the present embodiment, the encoder 8 adopts 10 encoders, that is, encoder to rotate a circle and need 1024
Pulse, encoder often walks a pulse, only about 0.35 degree of the angle of its rotation.
Invention also provides the method that above-mentioned detecting instrument detects elevator brake ability, comprises the steps：
Step 1：By elevator calling to top, elevator master switch is then turned off, it is ensured that elevator is in run-stopping status；
Step 2：Pincerlike current sensor 5, velocity measuring device is connected with instrument host 6 respectively；
Step 3：Under elevator halted state, the magnetic bases 7 of velocity measuring device are adsorbed the elevator master near steel wire rope 2
On the steel construction of machine 1, and the encoder 8 of governing speed detection means makes it be close to steel wire rope 2；
Step 4：Pincerlike current sensor 5 is vised into a phase of the input of elevator main 1；
Step 5：Confirm to install it is errorless after, combined floodgate elevator master switch makes elevator bring into operation, and starts the detecting instrument and start
Detection；
Step 6：Elevator is called to the bottom by top, when being run with normal speed in travel of elevator (lift) upper extent, is broken
Open elevator master switch；
Step 7：The elevator rear detecting instrument completely out of service is waited to show elevator brake distance, deceleration and maximum automatically
Deceleration；
Step 8：Recover elevator master switch so that elevator recovers normal operating condition.
In the present embodiment, in step 6, when elevator is from top to bottom running, in stroke upper extent
Interior disconnection elevator master switch；It is exactly the power-off in upper extent when operation to the bottom from top in fact, that is, only
Run a range of number of plies ability power-off；The upper semisection model of lifting height of lift is referred in wherein described travel of elevator (lift) upper extent
In enclosing.
Certainly above-described embodiment technology design only to illustrate the invention and feature, its object is to allow and are familiar with technique
People will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to this
The modification that the spirit of bright main technical schemes is done, all should be included within the scope of the present invention.
Claims (9)
1. a kind of elevator brake ability rapid detection apparatus, it is characterised in that：Including instrument host, velocity measuring device, pincer
Current sensor, display and button, the velocity measuring device, pincerlike current sensor, display and button are and instrument
Main frame connects, wherein：
The instrument host is used for receiving and transmitting signal, and controls the detecting instrument operation；
The pincerlike current sensor is used to obtain the current signal of elevator major loop；
The velocity measuring device is used for survey calculation pulse signal；
The display is used to show the data of elevator brake distance, deceleration and maximum deceleration.
2. a kind of elevator brake ability rapid detection apparatus according to claim 1, it is characterised in that：The instrument host
Including central processing unit, circuit main board and power module.
3. a kind of elevator brake ability rapid detection apparatus according to claim 2, it is characterised in that：The instrument host
Also include a host housing, the central processing unit, circuit main board and power module are arranged in the host housing.
4. a kind of elevator brake ability rapid detection apparatus according to claim 3, it is characterised in that：The button and institute
State display to be arranged on the host housing.
5. a kind of elevator brake ability rapid detection apparatus according to claim 2, it is characterised in that：The central authorities are processed
Device is single-chip microcomputer.
6. a kind of elevator brake ability rapid detection apparatus according to claim 1, it is characterised in that：The button includes
Switch, start to measure, stop three buttons.
7. a kind of elevator brake ability rapid detection apparatus according to claim 1, it is characterised in that：The velocity measuring
Device includes a magnetic bases and an encoder.
8. a kind of elevator brake ability rapid detection apparatus according to claim 7, it is characterised in that：The encoder is
10 encoders.
9. the method that detecting instrument described in a kind of employing claim 1~8 any one detects elevator brake ability, including
Following steps：
Step 1：By elevator calling to top, elevator master switch is then turned off, it is ensured that elevator is in run-stopping status；
Step 2：Pincerlike current sensor, velocity measuring device are connected with instrument host respectively；
Step 3：Under elevator halted state, the magnetic bases of velocity measuring device are adsorbed into the elevator main near steel wire rope
Steel construction on, and the encoder of governing speed detection means makes it be close to steel wire rope；
Step 4：Pincerlike current sensor is vised into a phase of elevator main input；
Step 5：Confirm to install it is errorless after, combined floodgate elevator master switch makes elevator bring into operation, and starts the detecting instrument and start
Detection；
Step 6：Elevator is called to the bottom by top, when being run with normal speed in travel of elevator (lift) upper extent, is broken
Open elevator master switch；
Step 7：The elevator rear detecting instrument completely out of service is waited to show elevator brake distance, deceleration and maximum automatically
Deceleration；
Step 8：Recover elevator master switch so that elevator recovers normal operating condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066900.XA CN106672727A (en) | 2017-02-07 | 2017-02-07 | Rapid detection instrument and method for braking capability of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066900.XA CN106672727A (en) | 2017-02-07 | 2017-02-07 | Rapid detection instrument and method for braking capability of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106672727A true CN106672727A (en) | 2017-05-17 |
Family
ID=58859223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710066900.XA Pending CN106672727A (en) | 2017-02-07 | 2017-02-07 | Rapid detection instrument and method for braking capability of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106672727A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108423509A (en) * | 2018-03-16 | 2018-08-21 | 武汉市特种设备监督检验所 | A kind of tracking-driven elevator braking distance measuring device |
| CN112141844A (en) * | 2020-09-09 | 2020-12-29 | 通辽市特种设备检验所 | Comprehensive detection system for safety assessment of old elevator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444672A (en) * | 2014-10-10 | 2015-03-25 | 上海大学 | Elevator braking performance detection system |
| CN105136509A (en) * | 2015-10-10 | 2015-12-09 | 天津豪雅科技发展有限公司 | Elevator braking parameter detector |
| CN205192775U (en) * | 2015-12-11 | 2016-04-27 | 秦皇岛开发区前景光电技术有限公司 | Elevator braking distance detection device |
-
2017
- 2017-02-07 CN CN201710066900.XA patent/CN106672727A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444672A (en) * | 2014-10-10 | 2015-03-25 | 上海大学 | Elevator braking performance detection system |
| CN105136509A (en) * | 2015-10-10 | 2015-12-09 | 天津豪雅科技发展有限公司 | Elevator braking parameter detector |
| CN205192775U (en) * | 2015-12-11 | 2016-04-27 | 秦皇岛开发区前景光电技术有限公司 | Elevator braking distance detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108423509A (en) * | 2018-03-16 | 2018-08-21 | 武汉市特种设备监督检验所 | A kind of tracking-driven elevator braking distance measuring device |
| CN112141844A (en) * | 2020-09-09 | 2020-12-29 | 通辽市特种设备检验所 | Comprehensive detection system for safety assessment of old elevator |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |