CN103935896A - Automatic identification device and identification method for steel wire rope multiplying power of hoisting machinery - Google Patents
Automatic identification device and identification method for steel wire rope multiplying power of hoisting machinery Download PDFInfo
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- CN103935896A CN103935896A CN201410122584.XA CN201410122584A CN103935896A CN 103935896 A CN103935896 A CN 103935896A CN 201410122584 A CN201410122584 A CN 201410122584A CN 103935896 A CN103935896 A CN 103935896A
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- steel rope
- multiplying power
- fixed pulley
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Abstract
The invention relates to an automatic identification device and an automatic identification method for the steel wire rope multiplying power of hoisting machinery and aims to solve the problem that the steel wire rope multiplying power of the existing crane overload protection systems are easy in producing errors due to manual input. The automatic identification device for the steel wire rope multiplying power of the hoisting machinery, provided by the invention, comprises an overload protection system and a steel wire rope multiplying power detecting device for sending steel wire rope multiplying power signals to the overload protection system, wherein the steel wire rope multiplying power detecting device comprises a first sensor for detecting whether a steel wire rope is fixedly connected on a fixing point on a fixed pulley block or not and a second sensor for detecting the times of the steel wire rope in winding the fixed pulley block. The invention provides the steel wire rope multiplying power identification method corresponding to the device at the same time. According to the device, the end fixing position of the steel wire rope is detected through the first sensor and the times of the steel wire rope in winding the fixed pulley block is detected through the second sensor to identify the multiplying power of the steel wire rope and send to the overload protection system, so that the automatic identification of the steel wire rope multiplying power is realized and the shortcoming of easiness in causing errors due to the manual input is avoided.
Description
Technical field
The present invention relates to a kind of elevator machinery, relate in particular to a kind of elevator machinery steel rope multiplying power automatic identification equipment and recognition methods.
Background technology
Overload protecting system is all housed on hoisting crane, prevents that overload crane operation from causing safety misadventure.Overload protecting system judges whether hoisting crane overloads in the parameter of institute's foundation and have one to be just the multiplying power of steel rope, and in existing overload crane protection system, the multiplying power of steel rope is all to have manually manually to input by human-computer interaction interface.Crane rope has two ends, wherein one end is fixedly connected on winch place, the other end be fixedly connected on running block or fixed pulley group on, in the time being fixed on running block, the multiplying power of steel rope is odd number, while being fixed in fixed pulley group, the multiplying power of steel rope is even number, and the multiplying power of crane rope can may change along with the difference of lifting task the multiplying power of steel rope, if operating personal is forgotten the multiplying power of steel rope in change overload protecting system when the multiplying power of steel rope changes or steel wire rope end head is fixedly connected with position and changes, or the input of the multiplying power of steel rope is wrong, can cause the erroneous judgement of overload protecting system, gently affect work efficiency, heavy may cause the safety misadventure of tumbling of hoisting crane.
Summary of the invention
The object of the invention is to easily produce wrong shortcoming by artificial input and a kind of elevator machinery steel rope multiplying power automatic identification equipment and recognition methods of automatic identification steel rope multiplying power are provided for the multiplying power of steel rope in existing overload crane protection system.
Technical scheme of the present invention is achieved in that a kind of elevator machinery steel rope multiplying power automatic identification equipment of structure; it comprises overload protecting system, sends the steel rope multiplying power detecting device of steel rope ratio signals to overload protecting system, and steel rope multiplying power detecting device comprises for detection of having or not on steel rope attachment point in fixed pulley group and is fixedly connected with the first sensor of steel rope and measures steel rope the second sensor of walking around fixed pulley group number of times.In the present invention, detecting by first sensor the attachment point that the termination of steel rope is fixedly connected in fixed pulley group is still fixedly connected on the attachment point of running block, if first sensor detects respective signal, the termination that represents steel rope is fixed on fixed pulley, if first sensor does not detect respective signal, represent that the termination of steel rope is fixedly connected on running block.The second sensor detects steel rope walks around the number of times of fixed pulley group; for example detect that it is n that steel rope is walked around the number of times of fixed pulley group; and the termination of steel rope is fixed in fixed pulley group; the multiplying power of steel rope be 2 × (n+1); if the termination of steel rope is fixed on running block; the multiplying power of steel rope is 2 × n+1; thereby be delivered to overload protecting system and realize the multiplying power of automatic detection computations steel rope by the electric signal detecting of first sensor and the second sensor, avoid relying on the problem that artificial input makes mistakes.
In elevator machinery steel rope multiplying power automatic identification equipment of the present invention, steel rope multiplying power detecting device also comprises chromacoder, and first sensor is connected with overload protecting system by chromacoder with the second sensor.Chromacoder sends to overload protecting system after the detection signal analog quantity of first sensor and the second sensor is processed into digital communication signal again, and chromacoder can connect by wireless or wired mode.First sensor also can directly be connected with overload protecting system with the detected signal of the second sensor.
In elevator machinery steel rope multiplying power automatic identification equipment of the present invention, first sensor is made up of a resistance of an approach switch series connection, approach switch is arranged on the steel rope fixed contact place of fixed pulley group, and whether the steel rope attachment point that detects fixed pulley group is fixed with steel rope.
In elevator machinery steel rope multiplying power automatic identification equipment of the present invention, the second sensor comprises the approach switch that number is identical with fixed pulley number in fixed pulley group, approach switch is installed on the top of fixed pulley in fixed pulley group by adapter plate, approach switch is corresponding one by one with fixed pulley in fixed pulley group, can respond in the race of fixed pulley and whether have steel rope, if there is steel rope in race, represent that steel rope walks around fixed pulley group once.
In elevator machinery steel rope multiplying power automatic identification equipment of the present invention, each approach switch of the second sensor is parallel with one another after connecting with a resistance.
Above-mentioned approach switch can be any in condenser, inductance type, Hall-type.
The present invention for another technical scheme that realizes its object and provide is: a kind of elevator machinery steel rope multiplying power automatic identifying method is provided, it comprises the steps: that steel rope multiplying power detecting device is had or not and is fixedly connected with steel rope by steel rope attachment point in its first sensor detection fixed pulley group, walks around the frequency n of fixed pulley group by the second sensor mensuration steel rope; Described in the time being fixedly connected with steel rope on steel rope attachment point in fixed pulley group, steel rope multiplying power detecting device produces steel rope multiplying power and is 2 × electric signal (n+1), in the time not being fixedly connected with steel rope on steel rope attachment point in fixed pulley group described in steel rope multiplying power detecting device produce the electric signal that steel rope multiplying power is 2 × n+1.The multiplying power electric signal of steel rope can be connected with the overload protecting system of hoisting crane directly or indirectly, realizes elevator machinery steel rope multiplying power and automatically detects, and avoids relying on the problem that artificial input makes mistakes.
In elevator machinery steel rope multiplying power automatic identifying method of the present invention, after converting digital electric signal to by chromacoder, exports again the analog electrical signal that steel rope multiplying power detecting device is exported first sensor and the second sensor.Chromacoder can be by wireless or wired mode by the multiplying power electric signal output of steel rope.
In elevator machinery steel rope multiplying power automatic identifying method of the present invention, the second sensor comprises the approach switch that number is identical with fixed pulley number in fixed pulley group, approach switch is installed on the top of fixed pulley in described fixed pulley group by adapter plate, approach switch and fixed pulley in described fixed pulley group have or not steel rope in the race of corresponding and sensing fixed pulley one by one.
In elevator machinery steel rope multiplying power automatic identifying method of the present invention, each approach switch of the second sensor is walked around the corresponding electric potential signal of the frequency n of fixed pulley group with the steel rope that results from parallel with one another after the series connection of resistance.
In elevator machinery steel rope multiplying power automatic identifying method of the present invention, first sensor is made up of a resistance of approach switch series connection, and detect this steel rope attachment point and has or not and be fixedly connected with steel rope at the steel rope fixed contact place that described approach switch is arranged on fixed pulley group.
The beneficial effect that the present invention compared with prior art has: in the present invention; by whether having steel rope in the detection steel wire rope end head attachment point of first sensor and the second sensor and the fixed pulley of fixed pulley group; and detection signal is sent to overload protecting system; automatically determine the multiplying power of steel rope, while avoiding the steel rope multiplying power of elevator machinery to change, need artificial input and the mistake that causes.
Brief description of the drawings
Fig. 1 is the scheme of installation of elevator machinery steel rope multiplying power automatic identification equipment;
Fig. 2 is the partial enlarged drawing at fixed pulley group C place;
Fig. 3 is the partial enlarged drawing at fixed pulley group D place;
Fig. 4 is electrical connection schematic diagram.
Parts title and sequence number in figure:
Fixed pulley group 1, movable pulley 2, adapter plate 3, approach switch 4, the first adapter plate 5, the first approach switch 6.
Detailed description of the invention
Below in conjunction with brief description of the drawings specific embodiments.As shown in Figure 1 to Figure 3, in the present embodiment elevator machinery steel rope multiplying power automatic identification equipment, in fixed pulley group, there are four fixed pulleys, in running block, there are five movable pulleys, the termination of steel rope is fixed on the steel rope attachment point G1 place in fixed pulley group, and steel rope is walked around successively each movable pulley in running block and is connected with winch with after each fixed pulley in fixed pulley group.In fixed pulley group fixed pulley above adapter plate 3 is installed, on adapter plate 3, be fixed with four approach switchs 4, four approach switchs 4 are corresponding one by one with four fixed pulleys in fixed pulley group, in the time having steel rope to walk around in the race of fixed pulley, approach switch can sense and closure, otherwise disconnect, steel rope attachment point G1 place in fixed pulley group is also installed with the first adapter plate 5, on the first adapter plate 5, be fixed with the first approach switch 6 (being approach switch A), when the wheels end of steel rope is fixed on this attachment point G1 place, the first approach switch 6 senses and closure, otherwise disconnect.As shown in Figure 4, after four approach switchs (being approach switch B1, approach switch B2, approach switch B3, approach switch B4) on adapter plate are connected in series with a resistance R separately, parallel connection forms the second sensor again, and the second sensor is linked into chromacoder by the b interface of chromacoder; The first approach switch A is linked into chromacoder by a interface of chromacoder after being also connected in series with a resistance R; On the closure of each approach switch in the second sensor and disconnection and fixed pulley corresponding to each approach switch, have or not around steel rope corresponding.And the closure of each approach switch and the different conditions of disconnection can produce different current potentials at the b of chromacoder interface, the number of times that this current potential and steel rope can be walked around to fixed pulley group is mapped, and realizes steel rope and walk around the detection of fixed pulley number of times.First sensor is also like this, by the closed of approach switch or disconnect and produce two different electric potential signals on a of chromacoder interface, it is corresponding that the termination that is fixedly connected on steel rope attachment point G1 in fixed pulley group and steel rope with the termination of steel rope is fixedly connected on two kinds of fixed positions of steel rope attachment point G2 on running block.Chromacoder converts the Potential analogue signal of first sensor and the second sensor to digital signal and sends to overload protecting system, walks around and orders the multiplying power of spending the number of times of two groups and then calculating to detect steel rope by measuring steel wire rope end head fixed position and steel rope.The multiplying power that realizes steel rope detects automatically.
In the present embodiment, fixed pulley number m=4 in fixed pulley group, it is also frequency n=4 that steel rope is walked around fixed pulley that steel rope is walked around each fixed pulley, because the termination of steel rope is fixed on the steel rope attachment point G1 place in fixed pulley group, so the multiplying power of steel rope is 2 × (n+1)=2 × (4+1)=10.In the case of the termination of steel rope be fixed on steel rope attachment point G1 place in fixed pulley group constant, steel rope is walked around after movable pulley not around fixed pulley directly by guide wheel to elevator, the second sensor senses frequency n=0 of steel rope around fixed pulley, and now the multiplying power of steel rope is 2 × (n+1)=2 × (0+1)=2; If the termination of steel rope was fixed on the steel rope attachment point G2 of running block when upper, and steel rope is walked around after each fixed pulley and movable pulley by guide wheel successively to elevator, now the steel rope attachment point sensing of first sensor in fixed pulley group disconnects less than steel rope, the second sensor can sense steel rope, and to walk around fixed pulley for four times be n=4, so the multiplying power of steel rope is 2 × n+1=2 × 4+1=9.First sensor and the second sensor are exported different electric potential signals by the closed or disconnection of approach switch; chromacoder will be simulated after electric potential signal converts digital signal to and send to overload protecting system these, realize the multiplying power of identification steel rope automatically.
Claims (10)
1. an elevator machinery steel rope multiplying power automatic identification equipment; it is characterized in that comprising overload protecting system, send the steel rope multiplying power detecting device of steel rope ratio signals to overload protecting system, described steel rope multiplying power detecting device comprises for detection of having or not on steel rope attachment point in fixed pulley group and is fixedly connected with the first sensor of steel rope and measures steel rope the second sensor of walking around fixed pulley group number of times.
2. elevator machinery steel rope multiplying power automatic identification equipment according to claim 1; it is characterized in that described steel rope multiplying power detecting device also comprises chromacoder, described first sensor is connected with overload protecting system by chromacoder with the second sensor.
3. elevator machinery steel rope multiplying power automatic identification equipment according to claim 1 and 2, is characterized in that described first sensor is made up of a resistance of an approach switch series connection, and described approach switch is arranged on the steel rope fixed contact place of fixed pulley group.
4. elevator machinery steel rope multiplying power automatic identification equipment according to claim 1 and 2, it is characterized in that described the second sensor comprises the approach switch that number is identical with fixed pulley number in fixed pulley group, described approach switch is installed on the top of fixed pulley in described fixed pulley group by adapter plate, approach switch is corresponding one by one with fixed pulley in described fixed pulley group.
5. elevator machinery steel rope multiplying power automatic identification equipment according to claim 4, is characterized in that each approach switch of described the second sensor is connected rear parallel with one another with a resistance.
6. an elevator machinery steel rope multiplying power automatic identifying method, it is characterized in that comprising the steps: that steel rope multiplying power detecting device is had or not and is fixedly connected with steel rope by steel rope attachment point in its first sensor detection fixed pulley group, walk around the frequency n of fixed pulley group by the second sensor mensuration steel rope; Described in the time being fixedly connected with steel rope on steel rope attachment point in fixed pulley group, steel rope multiplying power detecting device produces steel rope multiplying power and is 2 × electric signal (n+1), in the time not being fixedly connected with steel rope on steel rope attachment point in fixed pulley group described in steel rope multiplying power detecting device produce the electric signal that steel rope multiplying power is 2 × n+1.
7. elevator machinery steel rope multiplying power automatic identifying method according to claim 6, is characterized in that exporting after analog electrical signal that steel rope multiplying power detecting device is exported first sensor and the second sensor converts digital electric signal to by chromacoder again.
8. according to the elevator machinery steel rope multiplying power automatic identifying method described in claim 6 or 7, it is characterized in that described the second sensor comprises the approach switch that number is identical with fixed pulley number in fixed pulley group, approach switch is installed on the top of fixed pulley in described fixed pulley group by adapter plate, approach switch and fixed pulley in described fixed pulley group have or not steel rope in the race of corresponding and sensing fixed pulley one by one.
9. elevator machinery steel rope multiplying power automatic identifying method according to claim 8, the each approach switch that it is characterized in that described the second sensor is parallel with one another after connecting with a resistance, and mouth in parallel produces with steel rope and walks around the corresponding electric potential signal of the frequency n of fixed pulley group.
10. elevator machinery steel rope multiplying power automatic identifying method according to claim 6, it is characterized in that described first sensor is made up of a resistance of approach switch series connection, detect this steel rope attachment point and have or not and be fixedly connected with steel rope at the steel rope fixed contact place that described approach switch is arranged on fixed pulley group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122584.XA CN103935896B (en) | 2014-03-28 | 2014-03-28 | Hoisting machinery steel wire rope multiplying power automatic identification equipment and recognition methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122584.XA CN103935896B (en) | 2014-03-28 | 2014-03-28 | Hoisting machinery steel wire rope multiplying power automatic identification equipment and recognition methods |
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| CN103935896A true CN103935896A (en) | 2014-07-23 |
| CN103935896B CN103935896B (en) | 2016-07-06 |
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| CN201410122584.XA Active CN103935896B (en) | 2014-03-28 | 2014-03-28 | Hoisting machinery steel wire rope multiplying power automatic identification equipment and recognition methods |
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Cited By (5)
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| CN104986665A (en) * | 2015-07-09 | 2015-10-21 | 湖南中联重科智能技术有限公司 | Lifting equipment and detecting device, system and method for lifting rope multiplying power |
| CN105460789A (en) * | 2016-01-12 | 2016-04-06 | 徐州重型机械有限公司 | Crane rate diagnosis method, system and crane |
| CN107399669A (en) * | 2017-09-08 | 2017-11-28 | 芜湖市长江起重设备制造有限公司 | A kind of fixed pulley group structure of bridge crane |
| CN109516388A (en) * | 2018-12-08 | 2019-03-26 | 安徽柳工起重机有限公司 | A kind of crane multiplying power automatic recognition system |
| CN111498689A (en) * | 2020-04-03 | 2020-08-07 | 江西昌河汽车有限责任公司 | Main hook pulley block of A-line traveling crane in stamping workshop and application of main hook pulley block |
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| CN104986665A (en) * | 2015-07-09 | 2015-10-21 | 湖南中联重科智能技术有限公司 | Lifting equipment and detecting device, system and method for lifting rope multiplying power |
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| CN111498689A (en) * | 2020-04-03 | 2020-08-07 | 江西昌河汽车有限责任公司 | Main hook pulley block of A-line traveling crane in stamping workshop and application of main hook pulley block |
| CN111498689B (en) * | 2020-04-03 | 2023-06-16 | 江西昌河汽车有限责任公司 | Main hook pulley block for line A traveling in stamping workshop and application thereof |
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| CN103935896B (en) | 2016-07-06 |
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