CN2121050U - Alarm device for wire rope limped of hoist - Google Patents
Alarm device for wire rope limped of hoist Download PDFInfo
- Publication number
- CN2121050U CN2121050U CN 92203907 CN92203907U CN2121050U CN 2121050 U CN2121050 U CN 2121050U CN 92203907 CN92203907 CN 92203907 CN 92203907 U CN92203907 U CN 92203907U CN 2121050 U CN2121050 U CN 2121050U
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- circuit
- hoist
- wire rope
- alarm
- utility
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Abstract
The utility model relates to an alarm device for wire rope limped of a hoist, which is composed of a dynamic tension meter for wire ropes, a force signal transferring electric circuit box, and a signal reception alarm displaying and controlling circuit box. As long as a skip or a cage is clamped at any position, the alarm device for wire rope limped of a hoist can sent out sound and light alarm to warn and stop the hoist simultaneously. The utility model has the characteristics of reasonable structural design, convenient installation, safe and reliable work, and accurate alarm. The utility model is a necessary safe device for a modernized mine hoist.
Description
The utility model belongs to hoister and detects fault correction or safety feature.
Existing hoister steel cable slack rope warning device as shown in Figure 1, it is to send the slack rope alerting signal by the wire rope tilting section because of the sagging alarm switch that touches of conducting oneself with dignity, this device is only applicable to hoister in transferring process, because when skip bucket or cage are stuck in the decline process, steel cable just sagging warning may occur tilting, otherwise steel cable does not have relaxation, so the alarm free signal.Another kind is " preventing the protective device that skip bucket falls ", this device is connected switch as detecting element with a kind of magnetic, it is installed in skip bucket in unloading position, with detecting passing through to control and preventing that hoister is lax of skip bucket, if skip bucket the card bucket occurs in unloading position, at this moment, magnetic switch sends no skip bucket to be passed through, slack rope is described, provides alerting signal.More than two prior aries do not solve all that skip bucket or cage are in operation that a position is stuck and block overload when up, all send the problem of alerting signal under the situations such as the rope that breaks.
The purpose of this utility model solves skip bucket exactly or cage occurs being stuck in any position, can both promptly and accurately send the lax alerting signal of steel cable, with the generation of avoiding disconnected rope, weighing down bucket, ruin major accidents such as well.
The technical solution of the utility model is achieved like this: wire rope dynamic tension tester and force signal transmission circuit box are installed on the pulley frame, the tension signal that wire rope dynamic tension tester is measured is amplified through pre-amplification circuit by voltage-stabilized power supply circuit, inverter, force transducer output signal, amplify rectification circuit and deliver to A/D analog to digital conversion circuit, digital display circuit, the simulation display circuit that is installed in the hoist house, and then send the two-way alerting signal through load decision circuitry and signal control circuit, promptly sound, light are reported to the police simultaneously.The braking of control hoister is stopped when reporting to the police, and avoids accident to take place.
This device compared with prior art needs only skip bucket or cage and is stuck in any position, and the tension force of wire rope just has unexpected variation, and this variation needs only the judgement through the load decision circuitry, just can send sound and light alarm and parking.It has reports to the police accurately, and reasonable in design, easy for installation, safe and reliable characteristics are the requisite fail safe instruments of modern mine hoist.
Fig. 1 is a prior art warning device synoptic diagram.
Fig. 2 is the utility model scheme of installation.
Fig. 3 is a circuit block diagram of the present utility model.
Fig. 4 is a force signal transmission circuit fundamental diagram of the present utility model.
Fig. 5 is that signal of the present utility model receives display alarm and control circuit fundamental diagram.
Accompanying drawing is a specific embodiment of the present utility model, is described further below in conjunction with accompanying drawing:
With reference to Fig. 2, wire rope dynamic tension tester 1 and force signal transmission circuit box 2 are installed on the pulley frame, and the variation of steel wire rope tension is delivered to the signal that is installed in the hoist house at the signal that produces on the force transducer through cable and received Display and Alarm Circuit box 3.
Fig. 3 is the utility model circuit block diagram, and it forms the power transmission circuit by D.C. regulated power supply 5, inverter 6, force transducer 4 pre-amplification circuits 7; Through amplifying rectification circuit 8, Fen Sanlu gives A/D analog to digital conversion circuit 9, digital display circuit 10, simulation display circuit 11, load decision circuitry 12 and signal detection circuit 13.
Fig. 4 is the utility model force signal transmission circuit fundamental diagram, stabilized voltage supply 5 and inverter 6 produce the voltage stabilizing driving source, the force signal of force transducer 4 outputs amplifies through the electric signal of pre-amplification circuit 7 with force transducer 4 outputs, is convenient to reduce the decay of signal.
Fig. 5 receives display alarm and control circuit fundamental diagram for the utility model signal, it is by amplifying rectification circuit 7, A/D analog to digital conversion circuit 9, digital display circuit 10 and simulation display circuit 11 realize that the isolated DC signal amplifies, and directly see dynamic analog variation amount of steel wire rope tension and static digital quantity.Simultaneously, determine the wire rope working conditions, promptly normal, overload, underload and send the control alerting signal in time for signal control circuit 13 with load character decision circuitry 12.
Claims (3)
1, a kind of lax warning device of being made up of wire rope dynamic tension tester 1 of hoister steel cable is characterized in that the lax warning device of hoister steel cable comprises that also force signal transmission circuit box 2 and signal receive display alarm and control circuit box 3.
2, the lax warning device of hoister steel cable according to claim 1 is characterized in that the force signal transmission circuit is made up of mu balanced circuit 5, inverter 6, force transducer 4, pre-amplification circuit 7.
3, the lax warning device of hoister steel cable according to claim 1, it is characterized in that signal receives display alarm and control circuit is by amplifying rectification circuit 8, A/D analog to digital conversion circuit 9, digital display circuit 10, simulation display circuit 11, load decision circuitry 12, signal control circuit 13 is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92203907 CN2121050U (en) | 1992-03-06 | 1992-03-06 | Alarm device for wire rope limped of hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92203907 CN2121050U (en) | 1992-03-06 | 1992-03-06 | Alarm device for wire rope limped of hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2121050U true CN2121050U (en) | 1992-11-04 |
Family
ID=4950442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92203907 Granted CN2121050U (en) | 1992-03-06 | 1992-03-06 | Alarm device for wire rope limped of hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2121050U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663213A (en) * | 2013-12-12 | 2014-03-26 | 中联重科股份有限公司 | Tower crane anti-falling arm monitoring device and method and tower crane |
| CN108661700A (en) * | 2018-04-28 | 2018-10-16 | 淮北矿业（集团）有限责任公司 | A kind of skip bucket canopy tank signal protection device |
| CN110998681A (en) * | 2017-08-10 | 2020-04-10 | 3M创新有限公司 | Generation and monitoring of fall arrest device events |
-
1992
- 1992-03-06 CN CN 92203907 patent/CN2121050U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663213A (en) * | 2013-12-12 | 2014-03-26 | 中联重科股份有限公司 | Tower crane anti-falling arm monitoring device and method and tower crane |
| CN110998681A (en) * | 2017-08-10 | 2020-04-10 | 3M创新有限公司 | Generation and monitoring of fall arrest device events |
| CN108661700A (en) * | 2018-04-28 | 2018-10-16 | 淮北矿业（集团）有限责任公司 | A kind of skip bucket canopy tank signal protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |