CN102030279B - Crane and anti-over-discharging protection device of hoisting rope thereof - Google Patents
Crane and anti-over-discharging protection device of hoisting rope thereof Download PDFInfo
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- CN102030279B CN102030279B CN201010620047.XA CN201010620047A CN102030279B CN 102030279 B CN102030279 B CN 102030279B CN 201010620047 A CN201010620047 A CN 201010620047A CN 102030279 B CN102030279 B CN 102030279B
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Abstract
The invention discloses an anti-over-discharging protection device of a hoisting rope, which is used for measuring the rotating turn number of a rope (4) and comprises a detecting switch and a display device, wherein the detecting switch is used for detecting an rotating angle of a wound roll (3) and is arranged on the wound roll (3), and the display device is connected with the signal output end of the detecting switch. The anti-over-discharging protection device of the hoisting rope can accurately measure the rotating turn number of the rope (4) in real time, thereby monitoring the work state of the hoisting rope (4) and increasing the over-discharging judgment reliability of the rope (4) and the work safety of a crane, in addition, the anti-over-discharging protection device of the hoisting rope has simple structure and lower use cost, is also provided with a controller (6) and an alarming device and realizes the automatic control of engineering machinery. On the basis, the invention also provides a crane with the anti-over-discharging protection device of the hoisting rope.
Description
Technical field
The present invention relates to hoisting crane technical field, particularly relate to a kind of anti-over-discharging protection device of hoisting rope of hoisting crane.In addition, the invention still further relates to a kind of hoisting crane that comprises above-mentioned anti-over-discharging protection device of hoisting rope.
Background technology
Elevator is one of most important operating mechanism of hoisting crane, and its Main Function is the folding and unfolding of controlling the steel rope that is wound in mandrel surface, so that hoisting crane rises weight or put down in lift heavy operation.
Hoisting crane reel used is generally compound reel, and the both sides of reel are all provided with plug helix, and both hand of spirals are contrary, and steel rope two ends are separately fixed at left and right spiral fluted outer end, and fixing conventionally the adopt pressing plate of steel rope on reel fixed.
When hoisting crane work, steel rope can produce pulling force to the pressing plate of fixing it, for reducing the pulling force of steel rope to pressing plate, when steel rope is put into end position, on reel, except fixing fake, also should retain the steel rope that is no less than 3 circles as safe off-load circle; The effect of safe off-load circle is extremely important, and it can decompose the pulling force of steel rope on reel, thereby alleviates the load force of steel cord ends rope, has reduced the pulling force to pressing plate; If there is no safe off-load circle, the maximum pull that the pulling force that pressing plate bears is steel rope, pulling force is excessive easily to be extracted steel rope out or plate screw is broken and had an accident from pressing plate.Therefore in the time of craning weight of same operation, forbid excessive release of steel wire rope.
For prevent steel rope in lift heavy operation cross put, on elevator, be provided with anti-over-discharging protection device of hoisting rope.
In prior art, a kind of typical anti-overdischarging protector of steel rope is by travel switch is set on winch, by mechanical device impact stroke switch, makes it closed or disconnects, and reaches the object of controlling hoisting mechanism mode of operation.The principle of design of existing fender guard is: the relation between the kinematic velocity of the mechanical device of impact stroke switch and steel rope rotating speed; first according to the length of crane rope; calculate the winding number of turns of steel rope on reel; then determine speed ratio according to the number of turns; in the time that the steel rope residue number of turns reaches the setting number of turns; mechanical device impact stroke switch, steel rope stops transferring.
This anti-mistake is put device and can not be detected constantly the mode of operation of the steel rope on reel, and sensitivity is not high, and reliability is poor.
Therefore, how developing a kind of anti-over-discharging protection device of hoisting rope, can detect constantly the rotation number of turns of steel rope, improve the safety of hoisting crane work, and detect reliable, simple in structurely, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
Object of the present invention aims to provide a kind of anti-over-discharging protection device of hoisting rope, and this device can detect the rotation number of turns of steel rope constantly, improves the safety of hoisting crane work, and simple in structure, and use cost is lower.In addition, another object of the present invention aims to provide a kind of hoisting crane that comprises above-mentioned anti-over-discharging protection device of hoisting rope.
For solving the problems of the technologies described above; the invention provides a kind of anti-over-discharging protection device of hoisting rope; for the rotation number of turns of measuring steel wire rope; comprise the detector switch that detects reel rotational angle; described detector switch is arranged on described reel, also comprises the read out instrument being connected with the signal output part of described detector switch.
Preferably, described detector switch is potentiometer type counting machine, and described potentiometer type counting machine is connected with described reel by the rotating adapter shaft in end.
Preferably, also comprise controller, the signal output part of described potentiometer type counting machine connects the signal input part of described controller, and the signal output part of described controller connects described read out instrument.
Preferably, the telltale that described read out instrument is described crane cab.
Preferably, described controller is further connected with the engine installation of described reel.
Preferably, the signal output part of described controller is connected with the warning piece that sends alerting signal further.
Preferably, described potentiometer type counting machine comprises counter block and the potentiometer that is installed on described counter block inside, and described potentiometric the first adapter shaft is nested in the second adapter shaft of described counter block; One end of described reel is provided with mounting hole, and described the second adapter shaft is arranged in described mounting hole, and the shell of described counter block connects described reel by flange.
The present invention also provides a kind of hoisting crane, comprises the anti-over-discharging protection device of hoisting rope described in above any one.
A kind of anti-over-discharging protection device of hoisting rope provided by the present invention; for the rotation number of turns of measuring steel wire rope; comprise the detector switch that detects reel rotational angle, described detector switch is arranged on described reel, also comprises the read out instrument being connected with the signal output part of described detector switch.
Detector switch is arranged on reel, when wound roll I rotates, drives detector switch to rotate together thereupon, thereby the signal input part of detection trigger switch, the rotation number of turns of recording reel, because steel rope and reel are to synchronize rotation, thereby can obtain the rotation number of turns of steel rope; And the signal output part of detector switch connects read out instrument, and the rotation lap results of reel can convey to operating personal by read out instrument, and then operating personal can be according to showing that result takes appropriate measures.
Anti-over-discharging protection device of hoisting rope provided by the present invention; there is the rotation number of turns of measuring steel wire rope constantly; and can monitor in real time the performance of the working condition of elevator; thereby the reliability of excessive release of steel wire rope judgement and the safety of hoisting crane work are improved; and this fender guard is simple in structure, and use cost is lower.
One preferred embodiment in, also comprise controller, the signal output part of described detector switch connects controller, and the signal output part of described controller connects described read out instrument, and controller is also connected with the engine installation of described elevator; This control design has further strengthened the safety of hoisting rope in construction machinery and equipment uses, and has realized the automation of crane job, has vital effect for unattended machinery.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of detailed description of the invention of anti-over-discharging protection device of hoisting rope provided by the present invention;
The right side view that Fig. 2 is anti-over-discharging protection device of hoisting rope that Fig. 1 provides;
Fig. 3 is the structural representation of the electrometer formula counting machine of anti-over-discharging protection device of hoisting rope in Fig. 1;
Fig. 4 is the assembly drawing of a kind of hoisting crane provided by the present invention.
Wherein, in Fig. 1 to Fig. 4, the corresponding relation between Reference numeral and component names is:
1 electrometer formula counting machine; 2 flanges; 3 reels; 4 steel ropes; 5 telltales; 6 controllers.
Detailed description of the invention
Core of the present invention aims to provide a kind of anti-over-discharging protection device of hoisting rope, and this device can be measured the rotation number of turns of reel constantly, improves the safety of hoisting crane work, and simple in structure, and use cost is lower.Another core of the present invention aims to provide a kind of hoisting crane that comprises above-mentioned anti-over-discharging protection device of hoisting rope.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1 to Fig. 3, the structural representation of a kind of detailed description of the invention that Fig. 1 is anti-over-discharging protection device of hoisting rope provided by the present invention; The right side view that Fig. 2 is anti-overdischarging protector that Fig. 1 provides.
In a kind of detailed description of the invention; a kind of anti-over-discharging protection device of hoisting rope provided by the present invention; for detection of the rotation number of turns of steel rope 4 on the reel 3 of hoisting crane; comprise that the reel 3 that can measure described elevator rotates the detector switch of the number of turns; detector switch is arranged on described reel 3, also comprises the read out instrument being connected with the signal output part of described detector switch.
Detector switch is arranged on reel 3, when elevator work is rotated, drives detector switch to rotate together thereupon, thereby the signal input part of detection trigger switch, the rotation number of turns of recording reel 3, because steel rope 4 and reel 3 are to synchronize rotation, thereby can obtain the rotation number of turns of steel rope 4; And the signal output part of detector switch connects read out instrument, and the rotation lap results of reel can convey to operating personal by read out instrument, and then operating personal can be according to showing that result takes appropriate measures.
It should be noted that, detector switch can directly be connected with read out instrument, also can indirectly connect, as long as can realize technique effect of the present invention.
Anti-over-discharging protection device of hoisting rope provided by the present invention; there is the rotation number of turns of accurate measuring steel wire rope 4; and can monitor in real time the performance of the working condition of elevator; thereby improve steel rope 4 and excessively put the reliability of judgement and the safety of hoisting crane work; and this fender guard is simple in structure, and use cost is lower.
It is pointed out that read out instrument described herein can be visual display unit, for example telltale, can be also sound read out instrument, can also show by other means.
Further, detector switch can be potentiometer type counting machine 1, and potentiometer type counting machine 1 is connected with reel 3 by the rotating adapter shaft in end.
Above-mentioned potentiometer type counting machine 1 response ratio is very fast, and measured error is smaller, uses reliable.
Further, can also comprise controller 6, the signal receiving end of controller 6 connects the signal output part of potentiometer type counting machine 1, and controller 6 is read, resolves, processed by the signal to reception, thereby obtains the rotation number of turns of the measured reel 3 of potentiometer type counting machine 1; And the signal output part of controller 6 connects read out instrument, the result of above-mentioned signal can be transferred on read out instrument, operating personal can be according to the information on read out instrument, judge that hoisting rope is at present whether in normal active coils claimed range, and then take corresponding safety measure.
Realized the co-ordination of each parts of hoisting crane by the arithmetic and logic operation of controller 6.
Further, controller also 6 can be connected with the engine installation of elevator, the steel rope 4 of setting in controller 6 in advance on reel 3 allows the maximum number of turns of rotating, when controller 6 is by signal-obtaining, parsing, processing that to potentiometer type counting machine, 1 transmission comes, when the rotation number of turns of discovery steel rope 4 exceeds the maximum number of turns that allows rotation, controller 6 will send the engine installation of instruction to elevator, and engine installation stops action according to described instruction, elevator quits work, and steel rope 4 also stops operating.
This control design has further strengthened the safety in construction machinery and equipment uses of steel rope 4 on reel 3, has realized the automation of crane job, has vital effect for unattended machinery.
Particularly, read out instrument in the various embodiments described above can be the telltale 5 that is arranged at the operator's compartment of hoisting crane, not only convenient observation, and handled easily personnel move accordingly according to corresponding demonstration, and saved the time, improve the efficiency of hoisting crane work.
Further, the signal output part of controller 6 can also be connected with the warning piece that sends alerting signal, and warning piece can be alarm bell, can be also Warning light; After controller is by the signal analysis that potentiometer type counting machine 1 is sent, judge when steel rope 4 on reel 3 remains the number of turns and reaches safe number of turns, controller 6 will send alerting signal to warning piece, warning piece is reported to the police after receiving above-mentioned alarm command, operating personal just can be warned according to this, checks the information on read out instrument.
Warning piece is conducive to remind operating personal to notice that steel rope 4 is in abnormal operating state, grasps the working condition of understanding elevator, strengthens the safety of work, avoids the harm and the loss that bring because regulation device is malfunctioning.
Please refer to Fig. 3, Fig. 3 is the structural representation of the electrometer formula counting machine of anti-over-discharging protection device of hoisting rope in Fig. 1.
Particularly, the structure of potentiometer type counting machine 1 can be designed as shown in Figure 3, comprise counter block 16 and the potentiometer 13 that is installed on counter block 16 inside, counter block 16 inside can be provided with connecting panel 14, one end of potentiometer 13 can be fixed on connecting panel 14 by bolt 15, and the other end of potentiometer 13 is provided with the first adapter shaft 12, the first adapter shafts 12 and is nested in the second adapter shaft 11 of counter block 16, so that both synchronously rotate, the second adapter shaft 11 is connected on reel 3; And an end of reel 3 can be provided with mounting hole, the second adapter shaft 11 is arranged in mounting hole, and the shell of counter block 16 can connect by flange 2 end face of reel 3, and connection mode between the two can adopt bolt 15 fixing.
When elevator work, the first adapter shaft 12 rotates with the second adapter shaft 11 being arranged on reel 3, and potentiometer 13 gathers this rotating signal, and sends corresponding signal to controller.
This is relatively simple for structure, and cost compare is low, and uses flange 2 fixed sturctures fairly simple, firm.
The structure that it is pointed out that potentiometer type counting machine 1 is not only confined to description herein, as long as can realize technique effect of the present invention, and reliable working performance is stable; In like manner, the fixed form between potentiometer type counting machine 1 and reel 3 is also not unique, also can adopt other fixed forms.
For grasping further the working condition of steel rope 4 on elevator, monitor unit can also be set on elevator, monitor unit can be connected with image display apparatus, understands the operating condition of steel rope 4 by image display apparatus.
Please refer to Fig. 4, the assembly drawing that Fig. 4 is a kind of hoisting crane provided by the present invention.
The present invention also provides a kind of hoisting crane, comprises elevator and is installed on the anti-overdischarging protector of steel rope on described elevator; This hoisting crane also comprises the anti-overdischarging protector of steel rope above-mentioned in above-mentioned any embodiment.
Because above-mentioned anti-over-discharging protection device of hoisting rope has above-mentioned technique effect, the hoisting crane with this anti-over-discharging protection device of hoisting rope also should have corresponding technique effect.
The structure of other parts of hoisting crane please refer to prior art, repeats no more herein.
Above hoisting crane provided by the present invention and anti-over-discharging protection device of hoisting rope thereof are described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (6)
1. an anti-over-discharging protection device of hoisting rope, for the rotation number of turns of measuring steel wire rope (4), it is characterized in that, comprise the detector switch that detects reel (3) rotational angle, it is upper that described detector switch is arranged at described reel (3), also comprises the read out instrument being connected with the signal output part of described detector switch;
Described detector switch is potentiometer type counting machine (1), and described potentiometer type counting machine (1) is connected with described reel (3) by the rotating adapter shaft in end;
Described potentiometer type counting machine (1) comprises counter block (16) and is installed on the inner potentiometer (13) of described counter block (16), and first adapter shaft (12) of described potentiometer (13) is nested in second adapter shaft (11) of described counter block (16); One end of described reel (3) is provided with mounting hole, described the second adapter shaft (11) is arranged in described mounting hole, and the shell of described counter block (16) connects described reel (3) by flange (2).
2. anti-over-discharging protection device of hoisting rope as claimed in claim 1; it is characterized in that; also comprise controller (6); the signal output part of described potentiometer type counting machine (1) connects the signal input part of described controller (6), and the signal output part of described controller (6) connects described read out instrument.
3. anti-over-discharging protection device of hoisting rope as claimed in claim 2, is characterized in that, the telltale (5) that described read out instrument is crane cab.
4. anti-over-discharging protection device of hoisting rope as claimed in claim 3, is characterized in that, described controller (6) is further connected with the engine installation of described reel.
5. anti-over-discharging protection device of hoisting rope as claimed in claim 4, is characterized in that, the signal output part of described controller (6) is connected with the warning piece that sends alerting signal further.
6. a hoisting crane, comprises elevator and is installed on the anti-overdischarging protector of steel rope on described elevator; It is characterized in that, the anti-overdischarging protector of described steel rope is the anti-over-discharging protection device of hoisting rope described in claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620047.XA CN102030279B (en) | 2010-12-31 | 2010-12-31 | Crane and anti-over-discharging protection device of hoisting rope thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620047.XA CN102030279B (en) | 2010-12-31 | 2010-12-31 | Crane and anti-over-discharging protection device of hoisting rope thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102030279A CN102030279A (en) | 2011-04-27 |
| CN102030279B true CN102030279B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010620047.XA Expired - Fee Related CN102030279B (en) | 2010-12-31 | 2010-12-31 | Crane and anti-over-discharging protection device of hoisting rope thereof |
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| CN (1) | CN102030279B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491189B (en) * | 2011-11-16 | 2014-05-21 | 三一汽车起重机械有限公司 | Crane for mine disaster rescue |
| CN102530741B (en) * | 2011-12-13 | 2014-06-25 | 中联重科股份有限公司 | Crane and wire cable length measuring device thereof |
| CN102701100A (en) * | 2012-06-18 | 2012-10-03 | 丹阳市长江汽车部件有限公司 | Winch over-unwinding control device of rotary drilling rig |
| CN103552946B (en) * | 2013-11-08 | 2015-12-02 | 徐工集团工程机械股份有限公司 | Hoisting rope puts safely rope control method |
| CN108910635A (en) * | 2018-06-26 | 2018-11-30 | 太原理工大学 | A kind of tail rope monitoring device of mine hoisting system |
| CN110775827A (en) * | 2019-10-31 | 2020-02-11 | 三一汽车起重机械有限公司 | Rope breakage prevention early warning device, control method thereof and crane |
| CN113697721B (en) * | 2020-05-21 | 2023-09-08 | 林德（中国）叉车有限公司 | Method and device for judging unreeling of fork type AGV hoisting system |
| CN112174003B (en) * | 2020-09-28 | 2022-02-25 | 厦门安科科技有限公司 | Winding installation mechanism for electric hoist |
| CN112811271B (en) * | 2020-12-29 | 2022-10-28 | 三一海洋重工有限公司 | Cable winding and unwinding protection device and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205823Y (en) * | 1994-05-19 | 1995-08-23 | 洛阳矿山机械工程设计研究院 | Inclined plane dam-passing winch |
| JP2001151473A (en) * | 1999-11-29 | 2001-06-05 | Hitachi Ltd | Electric hosting machine with braking state monitoring function |
| CN2428462Y (en) * | 2000-01-06 | 2001-05-02 | 康坤潭 | Belt-winding machine with counter |
| CN2815997Y (en) * | 2005-05-25 | 2006-09-13 | 四川长江工程起重机有限责任公司 | Crane hoisting over fall prevention device |
| CN201037100Y (en) * | 2007-02-12 | 2008-03-19 | 索成将 | Counting and force measuring device for winch |
| CN201942463U (en) * | 2010-12-31 | 2011-08-24 | 徐州重型机械有限公司 | Crane and winding steel wire rope over-releasing-prevention protection device thereof |
-
2010
- 2010-12-31 CN CN201010620047.XA patent/CN102030279B/en not_active Expired - Fee Related
Also Published As
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| CN102030279A (en) | 2011-04-27 |
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Granted publication date: 20141029 Termination date: 20191231 |