CN209215415U - A kind of tester for elevator downhill race velocity determination - Google Patents
A kind of tester for elevator downhill race velocity determination Download PDFInfo
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- CN209215415U CN209215415U CN201821899890.4U CN201821899890U CN209215415U CN 209215415 U CN209215415 U CN 209215415U CN 201821899890 U CN201821899890 U CN 201821899890U CN 209215415 U CN209215415 U CN 209215415U
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- elevator
- test stand
- optoelectronic switch
- guide wheel
- measurement point
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Abstract
The utility model provides a kind of tester for elevator downhill race velocity determination, including test stand, first guide wheel, second guide wheel, elevator, wirerope, the test stand is the cuboid framework being spliced into bar shaped steel, the test stand side is fixed with elevator to be detected, counterweight is arranged inside test stand, wirerope one end is fixedly connected with counterweight, the other end passes through the second guide wheel, elevator is penetrated after first guide wheel, it is sequentially installed with upper limit optoelectronic switch from top to bottom relative to the other side of elevator on the test stand, upper measurement point optoelectronic switch, lower measurement point optoelectronic switch, upper limit optoelectronic switch, upper measurement point optoelectronic switch and lower measurement point optoelectronic switch are wired to PLC programmable controller.By the utility model, to solve conventional lift machine downhill race velocity determination of the existing technology using manually measuring, measurement accuracy is poor, the problem that minute is long, testing efficiency is low.
Description
Technical field
The utility model relates to a kind of elevator testers, and in particular to a kind of survey for elevator downhill race velocity determination
Try instrument.
Background technique
China introduces elevator technology in last century eight, the nineties, and development is quick, especially in the first decade of the 21st century,
Development is swift and violent, but measuring means relatively lags behind.
Downhill race detection manual for elevator rests on artificial hoisting depth at present, and manually release brake is artificial to survey
It measures length (distance), stopwatch is pinched and fixed time, to be converted into speed.In terms of starting velocity, range measurement, time
It is influenced in terms of there are trueness error, minute is long, testing efficiency is low, while manual measurement is also cooperated synchronism by operation；
Therefore the exploitation manual downhill race speed measurer of elevator has positive meaning.
Utility model content
The utility model provides a kind of tester for elevator downhill race velocity determination, of the existing technology to solve
Conventional lift machine downhill race velocity determination is using manually measuring, and measurement accuracy is poor, and minute is long, testing efficiency is low asks
Topic.
In order to solve the above technical problems, the utility model provides a kind of tester for elevator downhill race velocity determination,
Including test stand, the first guide wheel, the second guide wheel, elevator, wirerope, the test stand is the cuboid being spliced into bar shaped steel
Frame, the test stand side are fixed with elevator to be detected, and the first guide wheel is mounted on the lateral location at the top of test stand, the
Two guide wheels are fixed on the middle position at the top of test stand, and counterweight is arranged inside test stand, and wirerope one end is fixedly connected with counterweight,
The other end penetrates elevator after the second guide wheel, the first guide wheel, relative to the other side of elevator from upper on the test stand
Upper limit optoelectronic switch, upper measurement point optoelectronic switch, lower measurement point optoelectronic switch are sequentially installed under, upper limit photoelectricity is opened
It closes, upper measurement point optoelectronic switch and lower measurement point optoelectronic switch are wired to PLC programmable controller.
PLC programmable controller connects conversing contactor, and conversing contactor connects elevator motor, and PLC is programmable
Controller is to conversing contactor positive and negative rotation control signal and then controls elevator positive and negative rotation, to realize elevator promotion or decline
Counterweight.
It further include motor electromagnetic brake, PLC programmable controller is connect with motor electromagnetic brake, PLC programmable control
Device processed realizes free downhill race by controlling the constraint that motor electromagnetic brake makes counterweight be detached from brake for lifting machine.
It further include HMI human-computer interface device, HMI human-computer interface device and PLC programmable controller pass through RS485 connection
Connection.
The utility model bring is the utility model has the advantages that the test provided by the utility model for elevator downhill race velocity determination
Instrument changes and manually declutches as electric control gear, the release of counterweight is controlled by motor electromagnetic brake, improves measurement elevator
Manual downhill race velocity accuracy；The elevator manual downhill race velocity determination time is shortened, determination efficiency is improved, mitigates testing staff
Working strength；Control precision is increased using PLC programmable controller control motor electromagnetic brake and reliability, HMI are man-machine
Interface device visual display detecting result improves the convenience and accuracy of detection.
Detailed description of the invention
Fig. 1 is the tester schematic diagram of the utility model embodiment.
Fig. 2 is electrical control panel schematic diagram.
Fig. 3 is the electric control theory block diagram of tester.
Wherein, 10-HMI human-computer interface device, 18-PLC programmable controller, 19- conversing contactor, 20- elevator,
22- upper limit optoelectronic switch, the upper measurement point optoelectronic switch of 23-, measurement point optoelectronic switch under 24-, 25- motor electromagnetic brake,
26-test stands, the first guide wheel of 27-, the second guide wheel of 28-, 29- counterweight, 30- wirerope.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with drawings and the specific embodiments,
The utility model is described in further detail.
Fig. 1 is the tester schematic diagram of the utility model embodiment.
Fig. 2 is electrical control panel schematic diagram.
Fig. 3 is the electric control theory block diagram of tester.
As shown in Figure 1-3, the utility model provides a kind of tester for elevator downhill race velocity determination, including test
Frame 26, the first guide wheel 27, the second guide wheel 28, elevator 20, wirerope 30, the test stand 26 are the length being spliced into bar shaped steel
Cube frame, 26 side of test stand are fixed with elevator 20 to be detected, and the first guide wheel 27 is mounted on 26 top of test stand
Lateral location, the second guide wheel 28 is fixed on the middle position at the top of test stand 26, and counterweight 29 is arranged inside test stand 26, steel
30 one end of cord is fixedly connected with counterweight 29, and the other end penetrates elevator 20, the examination after the second guide wheel 28, the first guide wheel 27
It tests on frame 26 and is sequentially installed with upper limit optoelectronic switch 22 from top to bottom relative to the other side of elevator, upper measurement point photoelectricity is opened
Close 23, lower measurement point optoelectronic switch 24, upper limit optoelectronic switch 22, upper measurement point optoelectronic switch 23 and lower measurement point optoelectronic switch
24 are wired to PLC programmable controller 18.
PLC programmable controller 18 connects conversing contactor 19, and conversing contactor 19 connects elevator motor, PLC
Programmable controller 18 is to 19 positive and negative rotation of conversing contactor control signal and then controls 20 positive and negative rotation of elevator, is promoted with realizing
Machine is promoted or decline counterweight 29.
It further include motor electromagnetic brake 25, PLC programmable controller 18 is connect with motor electromagnetic brake 25, and PLC can
Programmable controller 18 is realized freely by controlling the constraint that motor electromagnetic brake 25 makes counterweight 29 be detached from brake for lifting machine
Downhill race.
Furthermore, it is understood that further including HMI human-computer interface device 10, human-computer interface device 10 is arranged on electrical control panel,
HMI human-computer interface device is connect with PLC programmable controller by RS485 connection, upper measurement point optoelectronic switch 23 and lower survey
An amount point optoelectronic switch 24 is wired to PLC programmable controller, PLC programmable controller to conversing contactor 19 just
Reverse control signal controls elevator and promotes or decline counterweight, makes counterweight by the movement of electrical control motor electromagnetic brake 25
Free downhill race monitors counterweight 29 by the time of upper measurement point and lower measurement point by PLC programmable controller, transports by program
Calculate and calculate the average speed of counterweight downslide, is shown by HMI man-machine interface, and be compared with preset value and obtain inspection
Survey conclusion.
The operation of the manual downhill race velocity determination of specific elevator: detected elevator 20 will be needed to be fixed with four screws
On test stand 26, elevator motor lines connect the elevator motor interface 4 being arranged on electrical control panel.Check electrical control
Whether platform power supply and the connector respectively limited connection are reliable, and current route is unobstructed up and down for counterweight, draw warning at 1 meter of test stand periphery
Line.Electrical control panel total power switch 2 is opened, voltmeter 9 shows that voltage is normal, on HMI human-computer interface device 10 in setting
Speed limit degree and lower limit speed.First confirm whether wirerope diameter matches with elevator before reeving 30, such as mismatches more commutation
Answer the wirerope of model.Wirerope folder in wirerope one end as shown in Figure 1 is fixed in counterweight, and the other end passes through the second guide wheel
28, elevator is penetrated after the first guide wheel 27.After wirerope penetrates elevator, personnel are removed outside warning line, and control elevator is continuous
Work stops until counterweight is drawn to upper limit site.When counterweight reaches upper limit site, and site environment allows to test, laboratory technician is pressed
" release " button on the interface lower HMI, PLC programmable controller 18 will unclamp friction plate by control motor electromagnetic brake 25,
Counterweight will be fallen down due to the constraint without brake for lifting machine because of gravity, since wirerope is also mentioning during falling
In the machine of liter, with escheat by the constraint by mechanical friction and centrifugal speed limiter in elevator.Main rate limitation is
Centrifugal speed limiter, so the core of this test equipment test is exactly the speed limit ability of centrifugal speed limiter, speed limit power is excessively high to be will affect
Normal manual downhill race, speed limit power is too low to be will cause whereabouts stall and causes the accident.Test point optoelectronic switch 22 is gone up when counterweight reaches,
Start timing inside PLC programmable controller 18, counterweight reaches lower test point optoelectronic switch 23,18 knot of PLC programmable controller
Beam timing, 25 power loss band-type brake of motor electromagnetic brake, counterweight no longer fall, are calculated inside PLC programmable controller, upper inspection
Measuring point is fixed with lower test point distance S, and fall time t has been measured, and V=S/t calculates average falling speed, passes through journey
Sequence is averaged falling speed again compared with " speed limit " and " lower velocity limit ", and average speed >=" speed limit " and average speed≤
" lower velocity limit " all to be unqualified, " speed limit " > average speed > " lower velocity limit " is qualification.PLC is calculating and compares knot
Fruit sends HMI to and shows.
Tester provided by the utility model for elevator downhill race velocity determination, changes and manually declutches as automatically controlled dress
It sets, the release of counterweight is controlled by motor electromagnetic brake, improve the measurement manual downhill race velocity accuracy of elevator；It shortens and mentions
The machine manual downhill race velocity determination time is risen, determination efficiency is improved, mitigates testing staff's working strength；Use PLC programmable control
Device control motor electromagnetic brake processed, which increases, controls precision and reliability, HMI human-computer interface device visual display detecting result,
Improve the convenience and accuracy of detection.
Tester provided by the utility model for elevator downhill race velocity determination, prevents to ascend a height, tester is from survey
Examination instrument has safe enough distance, ensures testing staff's safety；Bring security risk when overcoming manual measurement, safety guarantee is into one
Step is reinforced.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of the claims of the utility model.
Claims (4)
1. a kind of tester for elevator downhill race velocity determination, which is characterized in that including test stand (26), the first guide wheel
(27), the second guide wheel (28), elevator (20), wirerope (30), the test stand (26) are rectangular to be spliced into bar shaped steel
Body frame, test stand (26) side are fixed with elevator to be detected (20), and the first guide wheel (27) is mounted on test stand
(26) lateral location at the top of, the second guide wheel (28) are fixed on the middle position at the top of test stand (26), and counterweight (29) setting exists
Test stand (26) is internal, and wirerope (30) one end is fixedly connected counterweight (29), and the other end passes through the second guide wheel (28), the first guide wheel
(27) it is penetrated after elevator (20), the other side on the test stand (26) relative to elevator is sequentially installed with from top to bottom
Limiting photoelectric switch (22), upper measurement point optoelectronic switch (23), lower measurement point optoelectronic switch (24), upper limit optoelectronic switch
(22), upper measurement point optoelectronic switch (23) and lower measurement point optoelectronic switch (24) are wired to PLC programmable controller
(18)。
2. being used for the tester of elevator downhill race velocity determination as described in claim 1, which is characterized in that PLC programmable control
Device (18) processed connects conversing contactor (19), and conversing contactor (19) connects elevator motor, PLC programmable controller
(18) elevator (20) positive and negative rotation is controlled in turn to conversing contactor (19) positive and negative rotation control signal, to realize that elevator is promoted
Or decline counterweight (29).
3. being used for the tester of elevator downhill race velocity determination as described in claim 1, which is characterized in that further include motor electricity
Magnetic brake (25), PLC programmable controller (18) are connect with motor electromagnetic brake (25), PLC programmable controller (18)
Free downhill race is realized by controlling the constraint that motor electromagnetic brake (25) make counterweight (29) to be detached from brake for lifting machine.
4. the tester as described in any one of claims 1-3 for elevator downhill race velocity determination, which is characterized in that also wrap
It includes HMI human-computer interface device (10), HMI human-computer interface device (10) and PLC programmable controller (18) pass through RS485 connection
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821899890.4U CN209215415U (en) | 2018-11-15 | 2018-11-15 | A kind of tester for elevator downhill race velocity determination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821899890.4U CN209215415U (en) | 2018-11-15 | 2018-11-15 | A kind of tester for elevator downhill race velocity determination |
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| Publication Number | Publication Date |
|---|---|
| CN209215415U true CN209215415U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821899890.4U Active CN209215415U (en) | 2018-11-15 | 2018-11-15 | A kind of tester for elevator downhill race velocity determination |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781002A (en) * | 2020-08-10 | 2020-10-16 | 青岛亿和海丽安防科技有限公司 | Performance detection test device and method for drop protector |
-
2018
- 2018-11-15 CN CN201821899890.4U patent/CN209215415U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781002A (en) * | 2020-08-10 | 2020-10-16 | 青岛亿和海丽安防科技有限公司 | Performance detection test device and method for drop protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Tester for measuring downhill speed of elevator Effective date of registration: 20200226 Granted publication date: 20190806 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi Huishan branch Pledgor: Wuxi Little Swan Building Machinery Co., Ltd. Registration number: Y2020990000137 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |