CN204185160U - The anti-overdischarging protector of a kind of crane rope - Google Patents
The anti-overdischarging protector of a kind of crane rope Download PDFInfo
- Publication number
- CN204185160U CN204185160U CN201420352141.5U CN201420352141U CN204185160U CN 204185160 U CN204185160 U CN 204185160U CN 201420352141 U CN201420352141 U CN 201420352141U CN 204185160 U CN204185160 U CN 204185160U
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- China
- Prior art keywords
- limiter
- sensor
- warning device
- primary importance
- moment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to the technical field of hoisting crane, is specifically related to the anti-overdischarging protector of a kind of crane rope; The technical matters solved is: the anti-overdischarging protector of crane rope providing a kind of and do not rely on limiter of moment, can normally carry out when limiter of moment dead electricity work; The technical scheme adopted is the anti-overdischarging protector of a kind of crane rope, comprise primary importance sensor KM1, second place sensor KM2, warning device, limiter of moment main control system and power supply, described primary importance sensor KM1 is fixed on and comprises in the Ya Sheng mechanism of press rope wheel and support, and described second place sensor KM2 is arranged at by mounting rod and is wound with on the cable drum outer circumference surface of steel rope; The utility model is applicable to crane field.
Description
Technical field
The utility model relates to the technical field of hoisting crane, is specifically related to the anti-overdischarging protector of a kind of crane rope.
Background technology
According to the requirement of GB12602-2009 " elevator machinery overload protection device ", more than three tons lorry-mounted cranes require to install limiter of moment additional, and the limiter of moment product that straight arm type lorry-mounted crane is in the market installed forms primarily of force snesor, linear transducer, angular transducer and height limit switch; For the steel rope for the object that hoists in the lift heavy operation of hoisting crane, must crossing to it state of putting carry out detection protection owing to not explicitly calling in GB12602-2009 standard, detecting and the function of protection so most of limiter of moment producer carries out putting to steel rope to limiter of moment configuration when producing; And in the process of crane hoisting weight; if steel rope occurred to put phenomenon; then can damage equipment; steel rope even can be made to extract out or be broken by plate screw from pressing plate have an accident; so in the working process of hoisting crane; no matter from secure context or economic aspect, the anti-mistake of steel rope is put the detection of state and protects extremely important.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: provide a kind of structure simple, can overdischarging protector anti-with the crane rope of limiter of moment cooperating.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the anti-overdischarging protector of a kind of crane rope, comprise primary importance sensor KM1, second place sensor KM2, warning device, limiter of moment main control system and power supply, described primary importance sensor KM1 is fixed on and comprises in the Ya Sheng mechanism of press rope wheel and support, and described second place sensor KM2 is arranged at by mounting rod and is wound with on the cable drum outer circumference surface of steel rope, one end of the open contact KM1.1 of described primary importance sensor KM1 is also connected with described positive source after connecing one end of the normally closed contact KM2.1 of described second place sensor KM2, the other end of the open contact KM1.1 of described primary importance sensor KM1 is connected with the first PORT COM of described limiter of moment main control system, the other end of the normally closed contact KM2.1 of described second place sensor KM2 is connected with the second PORT COM of described limiter of moment main control system, first control port of described limiter of moment main control system is connected with one end of described warning device, the other end of described warning device is connected with described power cathode.
Described anti-Cross prevention system also comprises electric liquid protective valve DF1, and one end of described electric liquid protective valve DF1 is connected with the second control port of described limiter of moment main control system, and the other end of described electric liquid protective valve DF1 is connected with described power cathode; Described warning device comprises buzzer phone DL1, and the input end of described buzzer phone DL1 is the input end of described warning device, and the mouth of described buzzer phone DL1 is the mouth of described warning device; Described primary importance sensor KM1 and described second place sensor KM2 is proximity switch.
The utility model compared with prior art has following beneficial effect:
1, in the utility model, the anti-Cross prevention system of steel rope comprises primary importance sensor KM1, second place sensor KM2, warning device, limiter of moment main control system and power supply, described primary importance sensor KM1 is fixed on and comprises in the Ya Sheng mechanism of press rope wheel and support, and described second place sensor KM2 is arranged at by mounting rod and is wound with on the cable drum outer circumference surface of steel rope, primary importance sensor KM1 is for detecting the position of Ya Sheng mechanism, second place sensor KM2 is for detecting the folding and unfolding state of a certain circle (as the last lap) steel rope that cable drum is wound around, in the process of crane hoisting weight, along with the release of steel rope, the displacement of the actuator in Ya Sheng mechanism can change, and the number of turns of this displacement and steel rope is certain proportion, when steel rope is released into a fixing turn (as last lap), actuator in Ya Sheng mechanism enters the detection range of primary importance sensor KM1, primary importance sensor KM1 action, its open contact KM1.1 closes, and transmit an on-off signal to the main control system of limiter of moment, another switching value is sent to second place sensor KM2 after the main control system of limiter of moment receives this on-off signal, second place sensor KM2 connects, its normally closed contact KM2.1 disconnects, now second place sensor KM2 detects the folding and unfolding state of remaining a certain circle (as last lap) steel rope in real time, when detecting that the release of this circle steel rope is complete, the normally closed contact KM2.1 of the second place sensor KM2 in off-state closes, and transmit an on-off signal to the main control system of limiter of moment, transmit control signal to warning device after the main control system of limiter of moment receives this on-off signal, warning device sends alerting signal after receiving signal, staff is reminded to take action in time, guarantee that equipment can not cause because of excessive release of steel wire rope damaging.
2, in the utility model, warning device comprises buzzer phone DL1, and this buzzer phone DL1 can send high caution sound when excessive release of steel wire rope, has good warning function; Anti-Cross prevention system in the utility model also comprises the electric liquid protective valve DF1 be connected with limiter of moment; this electric liquid protective valve DF1 is serially connected in the hydraulic circuit of hoisting crane; when the main control system of limiter of moment receives the on-off signal of second place sensor KM2 transmission; transmit control signal also to while transmitting control signal to warning device electric liquid protective valve DF1; the hydraulic circuit of hoisting crane is cut off after electricity liquid protective valve DF1 receives signal; the release of timely stopping steel rope; ensure that the safe handling of hoisting crane, avoid unnecessary economic loss.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail:
Fig. 1 is scheme of installation of the present utility model;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the electrical block diagram of embodiment one;
Fig. 4 is the electrical block diagram of embodiment two;
In figure: 1 is press rope wheel, 2 is support, and 3 is steel rope, and 4 is cable drum.
Detailed description of the invention
Embodiment one
As shown in Figure 1 and Figure 2, the anti-overdischarging protector of a kind of crane rope, comprise primary importance sensor KM1, second place sensor KM2, warning device, limiter of moment main control system and power supply, described primary importance sensor KM1 is fixed on and comprises in the Ya Sheng mechanism of press rope wheel 1 and support 2, described second place sensor KM2 is arranged at by mounting rod and is wound with on cable drum 4 outer circumference surface of steel rope 3, and the primary importance sensor KM1 in the present embodiment and second place sensor KM2 all can be proximity switch, as shown in Figure 3, one end of the open contact KM1.1 of described primary importance sensor KM1 is also connected with described positive source after connecing one end of the normally closed contact KM2.1 of described second place sensor KM2, the other end of the open contact KM1.1 of described primary importance sensor KM1 is connected with the first PORT COM of described limiter of moment main control system, the other end of the normally closed contact KM2.1 of described second place sensor KM2 is connected with the second PORT COM of described limiter of moment main control system, first control port of described limiter of moment main control system is connected with one end of described warning device, the other end of described warning device is connected with described power cathode, in the present embodiment, described warning device comprises buzzer phone DL1, the input end of described buzzer phone DL1 is the input end of described warning device, the mouth of described buzzer phone DL1 is the mouth of described warning device, in addition, described warning device also can comprise Warning light, and described Warning light can be attempted by the two ends of described buzzer phone DL1, in the present embodiment, described anti-Cross prevention system also can comprise electric liquid protective valve DF1, one end of described electric liquid protective valve DF1 is connected with the second control port of described limiter of moment main control system, the other end of described electric liquid protective valve DF1 is connected with described power cathode, described electric liquid protective valve DF1 is serially connected in the hydraulic circuit of hoisting crane, electricity liquid protective valve DF1 mono-electricly must will disconnect in hoisting crane the hydraulic circuit controlling winding plant, makes steel rope 3 at once stop release.
Anti-Cross prevention system architecture in the present embodiment is simple, and accuracy of detection is higher, the basis on existing limiter of moment is carried out improvement and can realize carrying out anti-mistake to steel rope 3 and put and detect and protection.
Embodiment two
In embodiment one; system is achieved, and to carry out the mode of operation of the function of anti-Cross prevention and limiter of moment to steel rope 3 closely bound up; and in practical operation; sometimes can there is the situation of power-off in limiter of moment; and then affecting the mistake of anti-Cross prevention system to steel rope 3, to put state-detection inaccurate; and the anti-Cross prevention system in the present embodiment overcomes this shortcoming; with embodiment one unlike: add control relay KJ1 in the present embodiment; all devices all do not rely on limiter of moment and carry out work, and physical circuit is as follows:
One end of the open contact KM1.1 of described primary importance sensor KM1 is also connected with positive source after connecing one end of the open contact KJ1.1 of described control relay KJ1, the other end of the open contact KJ1.1 of described control relay KJ1 is connected with the input end of described warning device, the other end of the open contact KM1.1 of described primary importance sensor KM1 is connected with one end of the normally closed contact KM2.1 of described second place sensor KM2, the other end of the normally closed contact KM2.1 of described second place sensor KM2 is connected with one end of the coil KJ1.2 of described control relay KJ1, the other end of the coil KJ1.2 of described control relay KJ1 is also connected with power cathode after connecing the mouth of described warning device, primary importance sensor KM1 is for detecting the position of Ya Sheng mechanism, second place sensor KM2 is for detecting the folding and unfolding state of a certain circle (as the last lap) steel rope 3 that cable drum 4 is wound around, in the process of crane hoisting weight, along with the release of steel rope 3, the displacement of the actuator in Ya Sheng mechanism can change, and the number of turns of this displacement and steel rope 3 is certain proportion, when steel rope 3 is released into a fixing turn (as last lap), actuator in Ya Sheng mechanism enters the detection range of primary importance sensor KM1, primary importance sensor KM1 action, its open contact KM1.1 closes, second place sensor KM2 obtains electric, its normally closed contact KM2.1 disconnects, now second place sensor KM2 detects the folding and unfolding state of remaining a certain circle (as last lap) steel rope 3 in real time, when detecting that this circle steel rope 3 discharges complete, the normally closed contact KM2.1 of the second place sensor KM2 in off-state closes, now, the coil KJ1.2 of control relay KJ1 obtains electric, its open contact KJ1.1 closes, warning device obtains and electricly sends alerting signal, staff is reminded to take action in time, guarantee that equipment can not cause because steel rope 3 excessively puts damaging, above-mentioned anti-Cross prevention system architecture is simple, better, accuracy of detection is high, in operational process, do not rely on limiter of moment completely for impact resistance and anti-vibration ability, namely the using state of limiter of moment does not affect the normal operation of this device completely, has extremely strong practicality.
Anti-Cross prevention system in the present embodiment has independent starting, stop loop, does not rely on the running state of limiter of moment, namely still can normally work when limiter of moment does not power on; By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (4)
1. the anti-overdischarging protector of crane rope, it is characterized in that: comprise primary importance sensor KM1, second place sensor KM2, warning device, limiter of moment main control system and power supply, described primary importance sensor KM1 is fixed on and comprises in the Ya Sheng mechanism of press rope wheel and support, and described second place sensor KM2 is arranged at by mounting rod and is wound with on the cable drum outer circumference surface of steel rope;
One end of the open contact KM1.1 of described primary importance sensor KM1 is also connected with described positive source after connecing one end of the normally closed contact KM2.1 of described second place sensor KM2, the other end of the open contact KM1.1 of described primary importance sensor KM1 is connected with the first PORT COM of described limiter of moment main control system, the other end of the normally closed contact KM2.1 of described second place sensor KM2 is connected with the second PORT COM of described limiter of moment main control system, first control port of described limiter of moment main control system is connected with one end of described warning device, the other end of described warning device is connected with described power cathode.
2. the anti-overdischarging protector of a kind of crane rope according to claim 1; it is characterized in that: described anti-Cross prevention system also comprises electric liquid protective valve DF1; one end of described electric liquid protective valve DF1 is connected with the second control port of described limiter of moment main control system, and the other end of described electric liquid protective valve DF1 is connected with described power cathode.
3. the anti-overdischarging protector of a kind of crane rope according to claim 1 and 2; it is characterized in that: described warning device comprises buzzer phone DL1; the input end of described buzzer phone DL1 is the input end of described warning device, and the mouth of described buzzer phone DL1 is the mouth of described warning device.
4. the anti-overdischarging protector of a kind of crane rope according to claim 1 and 2, is characterized in that: described primary importance sensor KM1 and described second place sensor KM2 is proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420352141.5U CN204185160U (en) | 2014-06-30 | 2014-06-30 | The anti-overdischarging protector of a kind of crane rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420352141.5U CN204185160U (en) | 2014-06-30 | 2014-06-30 | The anti-overdischarging protector of a kind of crane rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204185160U true CN204185160U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420352141.5U Withdrawn - After Issue CN204185160U (en) | 2014-06-30 | 2014-06-30 | The anti-overdischarging protector of a kind of crane rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204185160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085803A (en) * | 2014-06-30 | 2014-10-08 | 长治清华机械厂 | Protective device for preventing excessive pay-off of crane steel rope |
-
2014
- 2014-06-30 CN CN201420352141.5U patent/CN204185160U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085803A (en) * | 2014-06-30 | 2014-10-08 | 长治清华机械厂 | Protective device for preventing excessive pay-off of crane steel rope |
| CN104085803B (en) * | 2014-06-30 | 2016-03-30 | 长治清华机械厂 | The anti-overdischarging protector of crane rope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |