CN205061410U - Ring column crane is prevented askew drawing and is hung safety device to one side - Google Patents
Ring column crane is prevented askew drawing and is hung safety device to one side Download PDFInfo
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- CN205061410U CN205061410U CN201520779990.3U CN201520779990U CN205061410U CN 205061410 U CN205061410 U CN 205061410U CN 201520779990 U CN201520779990 U CN 201520779990U CN 205061410 U CN205061410 U CN 205061410U
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- urceolus
- electrically conductive
- conduction
- crane
- hoisting
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Abstract
The utility model discloses a ring column crane is prevented askew drawing and is hung safety device to one side, including welding in hoisting mechanism's locating lever, the locating lever bottom is connected with the electrically conductive inner ring of inner edge fixedly connected with of the insulating outer loop that the level set up, insulating outer loop, the wire rope that lifts by crane of static end one side is connected with the tubular structure, and the tubular structure is including insulating inner tube and electrically conductive urceolus, the interior wall connection of insulating inner tube static end one side lift by crane wire rope on, the interior wall connection of electrically conductive urceolus is on the surface of insulating inner tube, electrically conductive urceolus is stretched out respectively at the upper and lower both ends of insulating inner tube, when lifting hook or other hoists were located normal sling position, electrically conductive urceolus was through electrically conductive endocyclic center, electrically conductive urceolus is connected with first wire, and electrically conductive inner ring is connected with the second wire. Install additional on current hoist the utility model discloses, can prevent askew drawing and hang the phenomenon to one side, provide safeguard for the safe operation of hoist. Additionally, the utility model discloses simple structure is convenient for make and install and use.
Description
Technical field
The utility model relates to hoisting crane technical field, particularly relates to hoisting crane and prevents askewly skewing the technology of hanging.
Background technology
In existing most of hoisting crane, there is the end of a geo-stationary in hoisting wirerope, and it is not mobile with the rotation of reel or pulley, is called stationary end; One end of the hoisting wirerope of so a lot of heavy-duty machine is fixedly connected on lifting mechanism, with this place's lifting mechanism geo-stationary, upwards turn back again after the other end of hoisting wirerope walks around movable pulley downwards and connect reel or connect reel afterwards by running block and fixed pulley (group).In existing small part hoisting crane, there is not fixed one end in hoisting wirerope, and the utility model does not relate to such hoisting crane.The hoisting wirerope of hoisting crane is connected with the suspender of other kinds beyond suspension hook or suspension hook.Certainly, the situation that suspension hook and other suspenders use simultaneously is also had.
Hoisting operation " ten do not hang " principle is that crane operation must observant working rule." ten do not hang " principle regulation, crane operation work must not be carried out askew skewing and be hung.But the restriction such as quality or objective condition often because of operating personnel in the lifting operation of reality, ubiquity and is askewly skewed the phenomenon of hanging.Askew skewing hangs the service life that may shorten hoisting crane or the damage causing equipment, even causes human casualty accident, there is very large potential safety hazard.
Askew skewing is hung the harm that may cause and is had:
1, askew skew to hang Crane Load can be made to increase, mechanism and motor heavy overload may be caused, reduce hoisting crane service life, even cause crane structure to damage.
2, askewly skew the wearing and tearing of hanging and can aggravate steel rope, reel and pulley, may rope guide be damaged.
3, askew skew hang steel rope may be caused to deviate from drum rope groove and on reel multiple wraps, steel rope also may be made to deviate from from pulley groove, cause derailment of cable wire accident.
4, askew skew to hang load can be made to produce conicity force, load, once depart from ground, loses ground friction force constraint, along the long-drawn-out pendulum of horizontal point of force direction, will may strike personnel or article, have an accident.
Therefore, how to prevent in hoisting operation askew skew to hang just become a very important topic.How to design and anti-ly askewly skew that to hang safety device and be arranged on hoisting crane be exactly a very real technical task.
Summary of the invention
The purpose of this utility model be to provide a kind of structure simple, be convenient to install and can be used for effectively preventing the askew ring column crane hung that skews of hoisting crane from preventing that askew skewing hangs safety device.
For achieving the above object, ring column crane of the present utility model prevents that askew skewing is hung safety device and comprised the radius stay be welded on lifting mechanism, be connected with the horizontally disposed insulation outer shroud be made up of insulating material bottom radius stay, the inner edge of insulation outer shroud is fixedly connected with the conduction inner ring be made up of conductive material; The hoisting wirerope of stationary end side is connected with tubular structure, tubular structure comprises insulation inner core and conduction urceolus, the inwall of insulation inner core is connected on the hoisting wirerope of stationary end side, the inwall of conduction urceolus is connected on the outside face of insulation inner core, and conduction urceolus is stretched out at the two ends up and down of insulation inner core respectively;
When crane hook is positioned at normal lifting position, conduction urceolus is by Ring current distribution in conduction; Described conduction urceolus is connected with the first wire, and described conduction inner ring is connected with the second wire.
Be fixedly connected with elastomeric element bottom described radius stay, radius stay is linked together by elastomeric element and described insulation outer shroud.
The utility model has following advantage:
In work, when hoisting wirerope generation beat (departing from normal operation position), the hoisting wirerope of stationary end side is just with moving conductive urceolus to leave Ring current distribution in conduction thus close conduction inner ring.Along with the angle of hoisting wirerope beat increases gradually, the hoisting wirerope of stationary end side will be with moving conductive urceolus to move closer to conduction inner ring and finally be connected with conduction inner ring.Now, the first wire and the second wire will be connected naturally, make control circuit can stop in time lifting by crane vertical motion.
Conduction urceolus is stretched out at the two ends up and down of insulation inner core respectively, can increase the distance between conduction urceolus end and hoisting wirerope, guarantees to conduct electricity the state being in insulation between urceolus and hoisting wirerope.
The setting of elastomeric element, can prevent hoisting wirerope beat larger angle, hoisting wirerope by conducting electricity the phenomenon of urceolus to recurring structure damage (damage such as the damage of conduction urceolus or conduction inner ring) during the strength that the applying of conduction inner ring is larger.
In addition, the utility model structure is simple, and operation precision is high, is convenient to manufacture and install and use, and is applicable to that existing most of hoisting crane installs photo-electric hoisting crane of the present utility model additional and prevents that askew skewing hangs safety device, for the safe operation of hoisting crane provides safeguard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The enlarged drawing at A place in Fig. 2 Fig. 1;
Fig. 3 is the schematic circuit diagram that the utility model is connected in control panel circuit.
Detailed description of the invention
In Fig. 3,1DK is motor circuit switch; 2DK is control circuit switch; 1GLJ and 2GLJ is excess current contactless switch; ZDC is Stopper contact device; ZC is ascent direction contactless switch; FC is descent direction contactless switch; 1JSC and 4JSC is excision resistance contactor; FWL is the contact switch be made up of conduction urceolus and conduction inner ring etc.; KZ is control contactor.
In Fig. 1, label 13A is depicted as the hoisting wirerope of stationary end side, and label 13B is the hoisting wirerope of opposite side.
As shown in Figure 1, Figure 2 and Figure 3, ring column crane of the present utility model prevent askew skew hang safety device comprise be welded in radius stay 1(on lifting mechanism 14 as being welded in the bottom of lifting mechanism 14), be connected with the horizontally disposed insulation outer shroud 2 be made up of insulating material bottom radius stay 1, the inner edge of insulation outer shroud 2 is fixedly connected with the conduction inner ring 3 be made up of conductive material; The hoisting wirerope 13A of stationary end side is connected with tubular structure, tubular structure comprises insulation inner core 5 and conduction urceolus 4, the inwall of insulation inner core 5 is connected on the hoisting wirerope 13A of stationary end side, the inwall of conduction urceolus 4 is connected on the outside face of insulation inner core 5, and conduction urceolus 4 is stretched out at the two ends up and down of insulation inner core 5 respectively.
When crane hook (or other suspender) is positioned at normal lifting position, conduction urceolus 4 is by the center of conduction inner ring 3; The diameter of conduction inner ring 3 is greater than the external diameter of hoisting wirerope.
The size of conduction inner ring 3 internal diameter, directly impact allows the maximum angle of hoisting wirerope beat (departing from normal operation position).
In addition, the hoisting wirerope 13A of stationary end side has certain altitude (length), and when beat, the distance of the hoisting wirerope horizontal-shift of top side is less than hoisting wirerope departure distance on the lower.Therefore, the height regulating conduction inner ring 3 to install, can regulate the maximum angle allowing hoisting wirerope beat.The height that conduction inner ring 3 is installed is higher, allows the maximum angle of hoisting wirerope beat larger; The height that conduction inner ring 3 is installed is lower, allows the maximum angle of hoisting wirerope beat less.
Radius stay 1 preferably adopts expansion link, so that the setting height(from bottom) of flexible conduction inner ring 3, and then regulates the maximum deflection angle of hoisting wirerope.Expansion link is this area routine techniques, can adopt more than the two sections sleeve pipes be threaded togather, and more than two sections also can be adopted to be slidably socketed together and the sleeve pipe fixed by pin and pin-and-hole; The structure of some other common expansion link can certainly be adopted.
Described conduction urceolus 4 is connected with the first wire 7, and described conduction inner ring 3 is connected with the second wire 8.
First wire 7 and the second wire 8 are for being connected with control circuit.
Be fixedly connected with elastomeric element 6 bottom described radius stay 1, radius stay 1 is linked together by elastomeric element 6 and described insulation outer shroud 2.
Elastomeric element 6 preferably adopts high-strength spring.The setting of elastomeric element 6, can prevent hoisting wirerope beat larger angle, hoisting wirerope from passing through recurring structure when conduction urceolus 4 applies larger strength to conduction inner ring 3 and damage the phenomenon of (damage such as the damage of conduction urceolus or conduction inner ring).
Wherein, radius stay 1 is welding structural element.
Lifting mechanism 14 can be dolly or electric block etc.Hoisting wirerope hoisting wirerope one end connecting some hoisting crane of reel 15(of upwards turning back again after walking around movable pulley (not shown) is downwards fixed on lifting mechanism, and the other end connects reel afterwards by running block and fixed pulley (group); Here illustrate to be only with reel 15 and illustrate mode of operation of the present utility model, do not form the restriction to hoisting crane).
Insulation and conductive material are this area routine techniques, and those skilled in the art can from main separation between various common associated materials.
Hang vital circuit to increase anti-askew skewing in PQR6402 control panel, during use, related circuit (as shown in Figure 3) is connected in the control circuit of PQR6402 control panel.
If after Fig. 3 removes the structure in A, B, C, D tetra-regions, it is exactly the electrical schematic diagram (locally) of existing PQR6402 control panel.A-quadrant in Fig. 3 is that ring column crane of the present utility model is prevented askewly skewing the transforming circuit (safety voltage) hanging safety device; B region in Fig. 3 is that ring column crane of the present utility model is prevented askewly skewing the triggering part hanging safety device; C region in Fig. 3 is the wiring position of (normally closed) contact of a correct described control contactor KZ;
fig. 3in D region be the wiring position of (normally closed) contact of a wrong described control contactor KZ.When the utility model is connected in control circuit, can not be connected to
fig. 3in D region place,
fig. 3in D region be only this connection location of easily makeing mistakes of display, in fact this place does not have the circuit structure newly increased.
In Fig. 3, label 16 is drg, and label 17 is lifting motor; These structures are also the existing apparatus that existing PQR6402 control panel connects, and specifically no longer describe in detail.
PQR6402 control panel and control circuit thereof are prior art, have one for controlling the hoisting limiter contact of lifting height of crane in this control circuit.When being connected to by the utility model in the control circuit of PQR6402 control panel, contact switch FWL and control contactor KZ is connected with the control circuit of PQR6402 control panel by transforming circuit (safety voltage).The normally closed contact of described control contactor KZ is connected on contact 18 place of described hoisting limiter.The normally closed contact of control contactor shown in figure is connected on contact 18 place of described hoisting limiter, is only citing, does not limit in the circuit normally closed contact of control contactor being connected on other types restriction lifting height of crane and hoisting capacity.
When crane hook (or other suspender) is positioned at normal lifting position, conduction urceolus 4 is by the centre of conduction inner ring 3, and both do not contact.Now the first wire 7 is not connected with the second wire 8, now control contactor KZ dead electricity, and the normally closed contact of control contactor is in conducting state, and hoisting limiter is normally worked.
When hoisting wirerope generation beat (departing from normal operation position), the hoisting wirerope of stationary end side just band moving conductive urceolus 4 leave conduction inner ring 3 center thus near conduction inner ring 3.Along with the angle of hoisting wirerope beat increases gradually, the hoisting wirerope of stationary end side will be with moving conductive urceolus 4 to move closer to conduction inner ring 3 and finally contact with conduction inner ring 3.Now, first wire and the second wire will be connected naturally naturally, control contactor KZ obtains electric, its normally closed contact disconnects, make contact 18 power-off of hoisting limiter, thus play and disconnect identical effect with hoisting limiter contact, namely allow lifting mechanism to run downwards or hover, do not allow lifting mechanism upwards to run.
It should be noted that design anti-askew skew hang vital circuit time, can not blindly according to anti-askew skew and hang safety device action time automatically disconnect hoisting crane ascent direction contactless switch and Stopper contact device, limit this theory of crane hoisting function with this and carry out designing (may potential safety hazard be there is).Still prevent askewly skewing the circuit hanging safety device for above-mentioned increase, if the contact of control contactor is not and hoisting limiter contact series, but connect respectively with hoist contactless switch and Stopper contact device, as shown in D region in Fig. 3, when anti-askew skew the contact switch action of hanging safety device after (namely the first wire 7 and the second wire 8 are in conducting state), control contactor KZ obtains electric, and its normally closed contact disconnects.If now, hoisting crane keeps off or 3 gears that decline in decline 2, then ascent direction contactless switch ZC, descent direction contactless switch FC and Stopper contact device ZDC are all in power failure state, cause the situation that mechanism cannot run downwards.
Above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although be described in detail the utility model with reference to above-mentioned example, those of ordinary skill in the art is to be understood that: still can modify to the utility model or equivalent replacement, and not departing from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. ring column crane prevents that askew skewing hangs safety device, it is characterized in that: comprise the radius stay be welded on lifting mechanism, be connected with the horizontally disposed insulation outer shroud be made up of insulating material bottom radius stay, the inner edge of insulation outer shroud is fixedly connected with the conduction inner ring be made up of conductive material; The hoisting wirerope of stationary end side is connected with tubular structure, tubular structure comprises insulation inner core and conduction urceolus, the inwall of insulation inner core is connected on the hoisting wirerope of stationary end side, the inwall of conduction urceolus is connected on the outside face of insulation inner core, and conduction urceolus is stretched out at the two ends up and down of insulation inner core respectively;
When crane hook is positioned at normal lifting position, conduction urceolus is by Ring current distribution in conduction; Described conduction urceolus is connected with the first wire, and described conduction inner ring is connected with the second wire.
2. ring column crane according to claim 1 prevents that askew skewing hangs safety device, it is characterized in that: be fixedly connected with elastomeric element bottom described radius stay, and radius stay is linked together by elastomeric element and described insulation outer shroud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779990.3U CN205061410U (en) | 2015-10-10 | 2015-10-10 | Ring column crane is prevented askew drawing and is hung safety device to one side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779990.3U CN205061410U (en) | 2015-10-10 | 2015-10-10 | Ring column crane is prevented askew drawing and is hung safety device to one side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205061410U true CN205061410U (en) | 2016-03-02 |
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ID=55387991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520779990.3U Expired - Fee Related CN205061410U (en) | 2015-10-10 | 2015-10-10 | Ring column crane is prevented askew drawing and is hung safety device to one side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205061410U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107259734A (en) * | 2017-07-28 | 2017-10-20 | 武汉理工大学 | A kind of parasols using solar power generation |
| CN107879250A (en) * | 2017-12-13 | 2018-04-06 | 云南昆钢重型装备制造集团有限公司 | It is a kind of to prevent crane steel cable is askew to skew the safety guard hung |
| CN108946479A (en) * | 2018-07-23 | 2018-12-07 | 安徽省雄峰起重机械有限公司 | A kind of protective device of crane |
-
2015
- 2015-10-10 CN CN201520779990.3U patent/CN205061410U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107259734A (en) * | 2017-07-28 | 2017-10-20 | 武汉理工大学 | A kind of parasols using solar power generation |
| CN107259734B (en) * | 2017-07-28 | 2019-07-23 | 武汉理工大学 | A kind of parasols using solar power generation |
| CN107879250A (en) * | 2017-12-13 | 2018-04-06 | 云南昆钢重型装备制造集团有限公司 | It is a kind of to prevent crane steel cable is askew to skew the safety guard hung |
| CN107879250B (en) * | 2017-12-13 | 2024-04-05 | 云南昆钢重型装备制造集团有限公司 | Safety protection device capable of preventing inclined pull of crane steel rope |
| CN108946479A (en) * | 2018-07-23 | 2018-12-07 | 安徽省雄峰起重机械有限公司 | A kind of protective device of crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20161010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |