CN201785100U - Weight-recognizing automatic frequency-conversion speed-regulating system of construction lifter - Google Patents
Weight-recognizing automatic frequency-conversion speed-regulating system of construction lifter Download PDFInfo
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- CN201785100U CN201785100U CN2010205277997U CN201020527799U CN201785100U CN 201785100 U CN201785100 U CN 201785100U CN 2010205277997 U CN2010205277997 U CN 2010205277997U CN 201020527799 U CN201020527799 U CN 201020527799U CN 201785100 U CN201785100 U CN 201785100U
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- weight
- weight sensing
- conversion speed
- automatic frequency
- cpu treater
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Abstract
The utility model discloses a weight-recognizing automatic frequency-conversion speed-regulating system of a construction lifter. A weight-recognizing sensor is connected with an operational amplifier which is connected with a CPU processor; and the CPU processor is connected with a D/A conversion circuit which outputs weight analog voltage signals for controlling the programmable analog quantity of a frequency converter to the frequency converter and is connected with a follower which outputs feedback signals to the CPU processor. The weight-recognizing automatic frequency-conversion speed-regulating system can change the ascending and descending speed of the construction lifter according to the loading change, improves the working efficiency, has low starting current which is reduced by 78 percent compared with that of a direct-starting mode so as to have little impact to a motor and prolong the service life of the motor, can regulate the acceleration time, and is stable to in running so as to be comfortable to sit, has functions of power compensation and energy-saving starting, can save energy averagely by about 30 percent, is safe and reliable and has protection functions to overcurrent, overvoltage, overtemperature, phase default, overload and the like.
Description
Technical field:
The utility model relates to a kind of building hoist weight sensing frequency-converting speed-governing control system.
Background technology:
Existing construction lifter motor adopts full voltage starting control, and rush of current is big, and vibration is big, and motor is short service life.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and electric motor starting is mild, the building hoist weight sensing automatic frequency-conversion speed-adjusting and control system of long service life.
Technical solution of the present utility model is:
A kind of building hoist weight sensing automatic frequency-conversion speed-adjusting and control system, it is characterized in that: comprise the weight sensing sensor, the weight sensing sensor is connected with op amp, op amp is connected with the CPU treater, the CPU treater is connected with the D/A change-over circuit, the D/A change-over circuit is to the simulation weight voltage signal of frequency converter output control frequency converter programmable analog amount, and the D/A change-over circuit is connected with follower to CPU treater output feedback signal.
Between op amp and the CPU treater filter is set.
The weight sensing sensor is that the four arm bridge-types that have temperature compensating are flattened electric resistance structure.
The CPU treater is to have to carry out the CPU treater that debounce adds smoothing processing through the weight sensing sensor information of computing processing and amplifying.
The CPU treater is the CPU treater with corresponding data function of revising the output valve and the value of weighing.
The utility model is rational in infrastructure, and the gravitation of will weighing is converted into D/A output, through the program debounce and add level and smooth output and analog quantity voltage signal that weight is inversely proportional to (be that Heavy Weight, voltage are low, in light weight, voltage is high); The follower output feedback signal is to prevent to export overproof reaching unusually; With the corresponding data of program correction output valve with the value of weighing; With simulation weight voltage signal control frequency converter programmable analog quantity (being 0-10V), reach control frequency converter output frequency, thus the control motor speed, the speed speed of realization control building hoist.
The utility model can change according to load-carrying and change building hoist rise and fall speed automatically, increases work efficiency; Starting current is little, reduced than direct Starting mode about 78%, little to electromechanical shock, prolonged service life of motor; Pick-up time is adjustable, operates steadily ride comfort; Have power back-off and start power saving function, on average economize on electricity about 30%; Safe and reliable, have defencive functions such as overcurrent, overvoltage, excess temperature, phase shortage, overload.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of an embodiment of the utility model.
The specific embodiment:
A kind of building hoist weight sensing automatic frequency-conversion speed-adjusting and control system, comprise weight sensing sensor 1, the weight sensing sensor is connected with op amp 2, op amp is connected with CPU treater 4, between op amp and the CPU treater filter 3 is set, the CPU treater is connected with D/A change-over circuit 5, and the D/A change-over circuit is to the simulation weight voltage signal of frequency converter 6 output control frequency converter programmable analog amounts, and the D/A change-over circuit is connected with follower 7 to CPU treater output feedback signal.
The weight sensing sensor is that the four arm bridge-types that have temperature compensating are flattened electric resistance structure.The CPU treater is to have to carry out the CPU treater that debounce adds smoothing processing through the weight sensing sensor information of computing processing and amplifying.
The CPU treater is the CPU treater with corresponding data function of revising the output valve and the value of weighing.
Also has motor 8 among the figure.
Claims (5)
1. building hoist weight sensing automatic frequency-conversion speed-adjusting and control system, it is characterized in that: comprise the weight sensing sensor, the weight sensing sensor is connected with op amp, op amp is connected with the CPU treater, the CPU treater is connected with the D/A change-over circuit, the D/A change-over circuit is to the simulation weight voltage signal of frequency converter output control frequency converter programmable analog amount, and the D/A change-over circuit is connected with follower to CPU treater output feedback signal.
2. building hoist weight sensing automatic frequency-conversion speed-adjusting and control system according to claim 1 is characterized in that: between op amp and the CPU treater filter is set.
3. building hoist weight sensing automatic frequency-conversion speed-adjusting and control system according to claim 1 and 2 is characterized in that: the weight sensing sensor is that the four arm bridge-types that have temperature compensating are flattened electric resistance structure.
4. building hoist weight sensing automatic frequency-conversion speed-adjusting and control system according to claim 1 and 2 is characterized in that: the CPU treater is to have to carry out the CPU treater that debounce adds smoothing processing through the weight sensing sensor information of computing processing and amplifying.
5. building hoist weight sensing automatic frequency-conversion speed-adjusting and control system according to claim 1 and 2 is characterized in that: the CPU treater is the CPU treater with corresponding data function of revising the output valve and the value of weighing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205277997U CN201785100U (en) | 2010-09-14 | 2010-09-14 | Weight-recognizing automatic frequency-conversion speed-regulating system of construction lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205277997U CN201785100U (en) | 2010-09-14 | 2010-09-14 | Weight-recognizing automatic frequency-conversion speed-regulating system of construction lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201785100U true CN201785100U (en) | 2011-04-06 |
Family
ID=43817075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205277997U Expired - Fee Related CN201785100U (en) | 2010-09-14 | 2010-09-14 | Weight-recognizing automatic frequency-conversion speed-regulating system of construction lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201785100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887403A (en) * | 2012-10-19 | 2013-01-23 | 南宁科拓自动化设备有限公司 | Construction hoist integrated controller |
-
2010
- 2010-09-14 CN CN2010205277997U patent/CN201785100U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887403A (en) * | 2012-10-19 | 2013-01-23 | 南宁科拓自动化设备有限公司 | Construction hoist integrated controller |
| CN102887403B (en) * | 2012-10-19 | 2015-07-15 | 南宁科拓自动化设备有限公司 | Construction hoist integrated controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150914 |
|
| EXPY | Termination of patent right or utility model |