CN208103625U - A kind of silo elevator lower limit level detecting apparatus - Google Patents
A kind of silo elevator lower limit level detecting apparatus Download PDFInfo
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- CN208103625U CN208103625U CN201820595663.6U CN201820595663U CN208103625U CN 208103625 U CN208103625 U CN 208103625U CN 201820595663 U CN201820595663 U CN 201820595663U CN 208103625 U CN208103625 U CN 208103625U
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- elevator
- lower limit
- silo
- detecting apparatus
- level detecting
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Abstract
The utility model discloses a kind of silo elevator lower limit level detecting apparatus.Including：Tension sensor is mounted on elevator lower part, for detecting the pulling force of load cable；Control panel, for acquiring, handling the input signal of sensor, and output signal.The utility model tells elevator car in the difference of operational process and landing status data, and then make the judgement that elevator reaches lower limit by the real time data of tension sensor in acquisition silo elevator system operational process.The device can realize lower limiting function without the help of lower position switch and cable, it is ensured that silo elevator reliability of operation.
Description
Technical field
The utility model relates to a kind of silo elevator lower limit level detecting apparatus.
Background technique
The stroke that silo elevator is run down reaches 30-40 meters, and it is flat that lifting means and control system are mounted on starting
Platform, without any electrical equipment, power and cable in elevator car, therefore, it is impossible to realize lower limiting function by switch.Such as
Fruit silo elevator does not have lower limiting function, then after carriage landing, if can produce without the operation for stopping motor manually in time
Raw serious wirerope moves back rope phenomenon.
Summary of the invention
The purpose of this utility model is the change by measurement silo elevator load cable pulling force in the process of running
Change, to judge whether elevator car lands, to generate lower limit triggering signal indirectly, control system is according to the lower limit
Trigger signal runs down elevator stopping.
In order to realize the function, tension sensor is installed on elevator lower part, when elevator is by load cable pull-up
Afterwards, tension sensor will generate a real-time signal, which can reflect the practical load-carrying of elevator lifting indirectly, packet
Include carriage self weight, personnel and goods and materials weight, part wire rope weight in carriage.
The sensor signal is sent to the control panel in electric cabinet, after a series of signal processing, as
Judge the basic data of elevator overload and lower limit triggering.Simultaneously send to control panel, further include elevator rising signals and
Dropping signal.
When carriage is run in the sky, load cable will be by a biggish pulling force, the signal amplitude of sensor
It is larger.After carriage landing, the pulling force that load cable is subject to disappears, and the signal amplitude of sensor is preferably minimized.Control panel inspection
After measuring minimum signal, the judgement of carriage lower limit triggering is made, a relay output is driven, automatically cuts off decline contact
Device, elevator run down stopping.
Detailed description of the invention
Fig. 1 is Tthe utility model system structural schematic diagram；
Fig. 2 is control logic block diagram of the utility model in elevator decline process；
Wherein：1, weighing sensor；2, wirerope；3, carriage；4, elevator；5, guide wheel；6, pulley blocks.
Specific embodiment
How to differentiate carriage is in the sky to realize lower limit with the difference of landing two states sensor real time data
The key of function.Especially idle running when, due to the presence of pulley, causing carriage to act on the pulling force of sensor is only carriage
The half of the pulling force of generation, carriage self weight is again less than normal, operating status and landing state, the data difference of sensor be not it is very big,
The data for needing real-time monitoring two states determine data that one falls between as elevator lower limit limits value.
Firstly, it is necessary to adjust overload function, according to the overload parameters of elevator, the potentiometer on control panel is adjusted, so
Online data monitoring is carried out afterwards, and record is unloaded and lands the stable data of two states.It can be realized lower limit when empty
Function, then when manned or loading, centainly can be realized lower limiting function.
After overload is adjusted in place, the real time data of on-line monitoring sensor is carried out, for example, data when unloaded are 0226,
Data after landing are 021C, then can use 021E as lower limit limits value.It should be noted that the limits value should take close fall
Value behind ground, lower limit false triggering probability caused by being can reduce in this way due to friction.
Elevator is in state of weightlessness in decline moment, carriage, sensor momentary reset, at this point, lower limit be easy to by
False triggering.To solve this problem, it needs to be delayed the regular hour, then carry out down after control panel receives decline run signal
Limit judgement, to avoid the influence of zero-g period.Delay time is longer, and effect of weightlessness is smaller, but lands and retreat rope phenomenon
It is more serious.According to actual measurement situation, delay in 2 seconds is taken, lower limit false triggering caused by weightlessness can be shielded, meanwhile, move back rope amount
Also within the acceptable range.
Illustrated above is only the preferred embodiment of the present invention, it is noted that for the art, is not being departed from
Under the premise of the technology of the present invention principle, several improvement can also be made, modification, combination, simplifies and replaces, these should also be as being considered as
Within protection scope of the present invention.
Claims (5)
1. a kind of silo elevator lower limit level detecting apparatus, it is characterized in that：Including：
Tension sensor is mounted on elevator lower part, for detecting the pulling force of load cable；
Control panel, for acquiring, handling the input signal of sensor, and output signal.
2. a kind of silo elevator lower limit level detecting apparatus according to claim 1, it is characterized in that：Elevator lower limit
The realization of function is to judge whether elevator reaches lower limit position by the analysis of the signal intensity to tension sensor, into
And it controls elevator stopping and runs down.
3. a kind of silo elevator lower limit level detecting apparatus according to claim 1, it is characterized in that：Elevator and pulling force pass
Sensor is fixed on first floor frame, and carriage and movable pulley one realize operation up and down by one group of movable pulley.
4. a kind of silo elevator lower limit level detecting apparatus according to claim 1, it is characterized in that：Pass through delay function screen
It covers in the lower limit false triggering as caused by carriage weightlessness of decline moment.
5. a kind of silo elevator lower limit level detecting apparatus according to claim 1, it is characterized in that：After carriage landing, by
In the presence of delay function, load cable can generate a degree of loosening, and the gear rope device on pulley can limit wirerope
Position, when carriage rise after, load cable can smoothly reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820595663.6U CN208103625U (en) | 2018-04-25 | 2018-04-25 | A kind of silo elevator lower limit level detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820595663.6U CN208103625U (en) | 2018-04-25 | 2018-04-25 | A kind of silo elevator lower limit level detecting apparatus |
Publications (1)
| Publication Number | Publication Date |
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| CN208103625U true CN208103625U (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820595663.6U Active CN208103625U (en) | 2018-04-25 | 2018-04-25 | A kind of silo elevator lower limit level detecting apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307088A (en) * | 2020-01-22 | 2020-06-19 | 福建江夏学院 | Water-cooled wall pneumatic ball passing positioning device and ball passing test method |
-
2018
- 2018-04-25 CN CN201820595663.6U patent/CN208103625U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307088A (en) * | 2020-01-22 | 2020-06-19 | 福建江夏学院 | Water-cooled wall pneumatic ball passing positioning device and ball passing test method |
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