CN104495657A - Anti- rope-breaking protection device for heavy-load trolley - Google Patents
Anti- rope-breaking protection device for heavy-load trolley Download PDFInfo
- Publication number
- CN104495657A CN104495657A CN201410846430.5A CN201410846430A CN104495657A CN 104495657 A CN104495657 A CN 104495657A CN 201410846430 A CN201410846430 A CN 201410846430A CN 104495657 A CN104495657 A CN 104495657A
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- CN
- China
- Prior art keywords
- pulley
- rope
- protection device
- wire rope
- steel wire
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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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses an anti-rope-breaking protection device for a heavy-load trolley. The anti-rope-breaking protection device comprises a brake lever (2) and a weight mounted at the tail of the brake lever (2), wherein a pulley block (3) is further arranged at the end in which the weight is arranged; a traction steel wire rope penetrates through a clamping grove of a pulley of the pulley block (3), and can drive the pulley to rotate in a normal working process; and an anti-releasing shaft (4) transversely penetrates through the lower part of the pulley and is used for preventing the traction steel wire rope from being released from the pulley. According to the anti-rope-breaking protection device disclosed by the invention, one nylon pulley block is additionally arranged and the traction steel wire rope can relatively move in a pulley groove; and the abrasion degree caused by the direct contact friction of the traction steel wire rope and the anti-rope-breaking device is greatly reduced and the possibility that the steel wire rope is abraded to be broken is effectively avoided.
Description
Technical field
The present invention relates to a kind of protection device for preventing wire rope breaking, be particularly useful for the loading trolley of tower crane.
Background technology
The loading trolley of tower crane is in luffing motion, and fracture suddenly occurs for a certain reason, and under the gravity and effect of inertia of lift heavy thing, cause dolly will continue operation out of control, lifted weight drops fast, very easily causes the accident.Therefore loading trolley all must design a kind of protection device for preventing wire rope breaking, in the motion of loading trolley luffing, when haulage cable ruptures suddenly, move ahead under dolly can be stoped out of control.Because loading trolley can move along crane arm lower boom (to move as front to cargo boom extreme direction) forward or backward, in order effectively to stop dolly, disconnected rope is rear mobile unexpectedly, and before and after dolly main structure, beam-ends all arranges this fender guard.
In existing structure design; protection device for preventing wire rope breaking has a variety of; its component through haulage cable is cutting groove on sheet formula or ring structures; structural principle is utilize the horizontal web member of crane arm bottom to make obstacle braking amplitude variation trolley, and see Fig. 1 to Fig. 3, part 1 is loading trolley main structure; part 2 is brake linkage; and have pendant heavy at afterbody, when without external constraint, rely on deadweight to rotate around hinge and to play braking action.Normal operating room pulls cylindrical ring (21) or the elongated slot of loading trolley (1) walking steel wire penetrating brake linkage (2), and because steel rope is stretching, brake linkage (2) can not rotate around hinge under gravity, push down loading trolley (1) main structure crossbeam.When luffing mechanism steel rope is disrumpent feelings; brake linkage (2) has departed from the constraint of steel rope; under gravity; brake linkage (2) is sagging rapidly around hinge; thus cause brake linkage (2) to have pendant heavily to hold lower than the horizontal web member of crane arm; and then prevent the movement of loading trolley (1), play safety guard-safeguard effect.
But existing protection device for preventing wire rope breaking, when playing breaking rope protecting effect, all fails to consider to increase to avoid the safety methods such as the wearing and tearing of variable-amplitude steel wire rope.As Fig. 3, in this version, the upper bar of cylindrical ring (21) contacts with steel rope always, in loading trolley (1) motion process, steel rope can come in contact wearing and tearing with cylindrical ring (21) all the time, and cylindrical ring (21) begins to be made for steel pipe or the direct bending of round steel, and do not carry out any smooth or lubricant method on surface, in the course of time, relativism can occur steel rope damages, and causes the wearing and tearing fracture of wire phenomenon of steel rope, reduces the service life of steel rope.
Summary of the invention
For above-mentioned existing technical matters; the invention provides a kind of loading trolley protection device for preventing wire rope breaking, anti-break rope protective effect can be played, can actv. be protected by haulage cable again; to reduce the probability that wearing and tearing fracture of wire occurs for it, extend the life-span of steel rope.
For achieving the above object, the invention provides a kind of loading trolley protection device for preventing wire rope breaking, comprise brake linkage and be installed on the pendant weight of its afterbody, this pendant is heavily held and is also arranged an assembly pulley, in the draw-in groove of haulage cable through the pulley of assembly pulley, and pulley rotation can be driven when normal work; And an anticreep axle is also crossed in the bottom of this pulley, for stopping that haulage cable departs from the draw-in groove of pulley.
Preferably, described assembly pulley adopts nylon pulley.
Protection device for preventing wire rope breaking structure of the present invention increases a nylon pulley group, haulage cable can relative motion in pulley groove, thus there is following several advantage: 1, utilize assembly pulley device, the degree of wear that the direct contact friction significantly reducing haulage cable and Anti-breaking rope device causes, effectively prevent the probability that wearing and tearing fracture of wire occurs steel rope; 2, structure design hommization more, has ensured the normal service life of haulage cable, reduces the direct cost of Steel wire rope maintenance or replacing.
Accompanying drawing explanation
Fig. 1 is existing protection device for preventing wire rope breaking;
Fig. 2 is the structural representation of rectangle ring type brake linkage in Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is structural representation of the present invention;
Fig. 5 is the structural representation of Fig. 4 middle pulley group formula brake linkage;
Fig. 6 is the left view of Fig. 5;
In figure: 1, loading trolley, 2, brake linkage, 21, cylindrical ring, 3, assembly pulley, 4, anticreep axle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 4 to 6, the present invention is provided with anti-off rope device, heavily holds again arrange a nylon pulley group 3 at the pendant of brake linkage 2, haulage cable is through in the pulley draw-in groove of assembly pulley 3, in normal operation, steel rope can drive pulley rotation always, plays the anti-wear effect of actv.; And an anticreep axle 4 is crossed in the bottom of pulley, for stopping that haulage cable departs from the draw-in groove of pulley.Utilize assembly pulley 3 device, significantly reduce the direct degree of wear of Anti-breaking rope device and steel rope, effectively prevent the wearing and tearing fracture of wire phenomenon of steel rope.
By applying this technology, the loading trolley 1 of XGT100A (6012) significantly reduces the direct degree of wear of Anti-breaking rope device and steel rope, effectively prevent the wearing and tearing fracture of wire phenomenon of steel rope, and decrease the direct cost of Steel wire rope maintenance or replacing, meet human oriented design requirement, achieve good effect.
Claims (2)
1. a loading trolley protection device for preventing wire rope breaking, it is characterized in that, comprise brake linkage (2) and be installed on the pendant weight of its afterbody, this pendant is heavily held and is also arranged an assembly pulley (3), in the draw-in groove of haulage cable through the pulley of assembly pulley (3), and pulley rotation can be driven when normal work; And an anticreep axle (4) is also crossed in the bottom of this pulley, for stopping that haulage cable departs from the draw-in groove of pulley.
2. a kind of loading trolley protection device for preventing wire rope breaking according to claim 1, is characterized in that, described assembly pulley (3) adopts nylon pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846430.5A CN104495657A (en) | 2014-12-31 | 2014-12-31 | Anti- rope-breaking protection device for heavy-load trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846430.5A CN104495657A (en) | 2014-12-31 | 2014-12-31 | Anti- rope-breaking protection device for heavy-load trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104495657A true CN104495657A (en) | 2015-04-08 |
Family
ID=52937139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846430.5A Pending CN104495657A (en) | 2014-12-31 | 2014-12-31 | Anti- rope-breaking protection device for heavy-load trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104495657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630678A (en) * | 2017-09-28 | 2018-01-26 | 徐州徐工铁路装备有限公司 | A kind of anticreep guard system for drill jumbo steel wire rope |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826673A (en) * | 1994-07-21 | 1996-01-30 | Tadano Ltd | Wire retainer installation for mobile crane |
| CN203529821U (en) * | 2013-09-17 | 2014-04-09 | 朝阳凌云建筑机械有限公司 | Variable amplitude trolley for tower crane |
| CN203767887U (en) * | 2014-04-10 | 2014-08-13 | 浙江德清华杨科技有限公司 | Detachable rope warding-off device for load trolley |
| CN204434146U (en) * | 2014-12-31 | 2015-07-01 | 徐州建机工程机械有限公司 | Loading trolley protection device for preventing wire rope breaking |
-
2014
- 2014-12-31 CN CN201410846430.5A patent/CN104495657A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826673A (en) * | 1994-07-21 | 1996-01-30 | Tadano Ltd | Wire retainer installation for mobile crane |
| CN203529821U (en) * | 2013-09-17 | 2014-04-09 | 朝阳凌云建筑机械有限公司 | Variable amplitude trolley for tower crane |
| CN203767887U (en) * | 2014-04-10 | 2014-08-13 | 浙江德清华杨科技有限公司 | Detachable rope warding-off device for load trolley |
| CN204434146U (en) * | 2014-12-31 | 2015-07-01 | 徐州建机工程机械有限公司 | Loading trolley protection device for preventing wire rope breaking |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630678A (en) * | 2017-09-28 | 2018-01-26 | 徐州徐工铁路装备有限公司 | A kind of anticreep guard system for drill jumbo steel wire rope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
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| WD01 | Invention patent application deemed withdrawn after publication |