CN202848945U - Hoisting mechanism for crane - Google Patents
Hoisting mechanism for crane Download PDFInfo
- Publication number
- CN202848945U CN202848945U CN 201220516936 CN201220516936U CN202848945U CN 202848945 U CN202848945 U CN 202848945U CN 201220516936 CN201220516936 CN 201220516936 CN 201220516936 U CN201220516936 U CN 201220516936U CN 202848945 U CN202848945 U CN 202848945U
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- fixed pulley
- reel
- pulley group
- steel rope
- pulley block
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Abstract
The utility model discloses a hoisting mechanism for a crane. Two steel wire ropes are arranged on winding drums, the two steel wire ropes include a left steel wire rope and a right steel rope which are respectively wound on a left winding drum and a right winding drum in opposite winding directions, and wound out from the same side of the winding drums, a left fixed pulley block and a left movable pulley block are arranged below the left winding drum along the left direction, a right fixed pulley block and a right movable pulley block are arranged below the right winding drum along the right direction, the left steel wire rope winds the left winding drum, winds via the left movable pulley block, the left fixed pulley block, the right fixed pulley block and the right movable pulley block in sequence, and then is fixedly connected with the right end of a balance arm. The right steel wire rope winds the right winding drum, winds via the right movable pulley block, the right fixed pulley block, the left fixed pulley block and the left movable pulley block, and then is fixedly connected with the left end of the balance arm. Two independent hoisting systems which are used for hoisting articles are composed of the two steel wire ropes, corresponding movable pulley blocks and fixed pulley blocks, thus even when a steel wire rope cracked suddenly, the other steel wire rope can still keep working to hoist the articles, and the articles hoisted can be effectively prevented from unexpectedly falling off.
Description
Technical field
The utility model belongs to the elevator machinery technical field, is specifically related to a kind of hoisting mechanism for crane.
Background technology
At present, of home make little tonnage (≤50t) lifting mechanism of metallurgical bridge crane structure how as shown in Figure 1, normally the fag end with steel rope 3 is fixed on reel 1 one ends, steel rope lays out from a side of reel, is fixed to the other end of reel 1 after running block 4 and 2 windings of fixed pulley group again.Because only be wound with steel cable on the reel of above-mentioned lifting mechanism, after the unexpected fracture of this root steel rope, the article meeting accident of lifting mechanism institute handling drops and causes safety misadventure.For improving the safety of lifting mechanism, generally be by strengthening the safety factor of steel rope.But in long use procedure, after steel rope had branch fracture, the article of institute's handling still can accident drop, and can not effectively avoid the contingency that causes because of the unexpected fracture of steel rope.
The utility model content
The purpose of this utility model is to provide a kind of hoisting mechanism for crane, to solve the technical matters that causes the article accident to drop because of the steel cable fracture in the lifting mechanism in the prior art.
For achieving the above object, the technical scheme of hoisting mechanism for crane provided by the utility model is: hoisting mechanism for crane, comprise mechanism rack, be provided with the reel that length is extended along left and right directions on the mechanism rack, be wound with steel rope on the reel, described steel rope has two, reel is for supplying two left sides that steel rope twines respectively, right reel, two steel ropes are for to be wrapped in respectively a left side with opposite winding direction, a left side that on the right reel and all lays out from the same side of reel, right steel rope, be furnished with a left side that is installed on the mechanism rack along left and right directions below the reel, right fixed pulley group and being used for and the left side of the fixing assembling of suspender of described lifting mechanism, right running block, a described left side, right fixed pulley group and a left side, all comprise at least two pulleys in the right running block, left, the central axis of right fixed pulley group all extends along fore-and-aft direction, left, the central axis of right running block all extends along left and right directions, described lifting mechanism comprises that also the middle part is hinged on equilibrium arm on the mechanism rack, and described left steel rope is laying out left reel and the left running block of pile warp successively, left fixed pulley group, right-hand member with described equilibrium arm behind right fixed pulley group and the right running block is connected; Described right steel rope is laying out right reel and is being connected with the left end of described equilibrium arm behind the right running block of pile warp, right fixed pulley group, left fixed pulley group and the left running block successively.
Described left and right reel is connected by coupler, and both rotate synchronously.
Described left and right fixed pulley group all is positioned under the reel, described equilibrium arm is positioned at the side that left and right steel rope lays out from reel, is used for the antiwind space of avoiding left and right steel rope mutually to twine when leaving between equilibrium arm and the left and right fixed pulley group between the left and right fixed pulley group of left and right steel rope pile warp and left and right running block and location division.
The two ends of described equilibrium arm respectively are provided with hanger, and each is connected with steel cable by described hanger respectively at the two ends of equilibrium arm.
The beneficial effects of the utility model are: be wound with two steel ropes on the left and right reel of hoisting mechanism for crane provided by the utility model, and every steel rope is after the same side from reel lays out, after running block corresponding to pile warp and fixed pulley group, be connected on the equilibrium arm, two steel ropes and corresponding running block, fixed pulley form the tackling system that two covers independently are used for the lifting article, when even if steel cable ruptures suddenly like this, another root steel rope still can work on the handling article, effectively prevents from being dropped by the accident of handling article.Left and right fixed pulley group and left and right running block in this lifting mechanism are all arranged along left and right directions, and the central axis of left and right running block all extends along left and right directions, and the central axis of left and right fixed pulley group all extends along fore-and-aft direction, on fixed pulley group and running block, can effectively utilize the space during lay winding wire ropes like this, and then avoid steel rope when pile warp fixed pulley group and running block, to be intertwined.
Description of drawings
Fig. 1 is the structural representation of hoisting mechanism for crane of the prior art;
Fig. 2 is the structural representation of a kind of embodiment of hoisting mechanism for crane provided by the utility model.
The specific embodiment
As shown in Figure 2, a kind of embodiment of hoisting mechanism for crane, lifting mechanism among this embodiment comprises mechanism rack, be provided with the reel 100 that length is extended along left and right directions on the mechanism rack, be wound with steel rope on the reel, itself and difference of the prior art mainly are, the steel rope that herein is wrapped on the reel has two, reel 100 is for supplying two left reel 21 and right reels 11 that steel rope twines respectively, two steel ropes are left steel rope 24 and 14, two steel ropes of right steel rope are wrapped in respectively reel with opposite winding direction a left side, on the right reel and all the same side from reel lays out.In addition, below reel 100, be furnished with the left fixed pulley group 22 and the right fixed pulley group 12 that are installed on the mechanism rack along left and right directions and reach left running block 23 and the right running block 13 that fixedly is assembled together for the suspender with lifting mechanism, include two pulleys in left and right fixed pulley group and the left and right running block, the central axis of left and right fixed pulley group herein all extends along fore-and-aft direction, and the central axis of left and right running block all extends along left and right directions.Described lifting mechanism also comprises the equilibrium arm 32 that is used for fixing left and right steel rope that fixedly is assembled together with reel, the middle part of this equilibrium arm 32 is hinged on the mechanism rack, supplying the hinged position of equilibrium arm on the mechanism rack is hinged seat 31, respectively is provided with the hanger be used to the steel rope that is connected at the two ends of equilibrium arm 32.Described left steel rope 24 lay out left reel and successively behind the left running block 23 of pile warp, left fixed pulley group 22, right fixed pulley group 12 and the right running block 13 and the hanger of the right-hand member of equilibrium arm 32 be connected; Described right steel rope 14 lay out right reel and successively behind the right running block 13 of pile warp, right fixed pulley group 12, left fixed pulley group 22 and the left running block 23 and the hanger of the left end of equilibrium arm 32 be connected.
In the present embodiment, left and right fixed pulley group is positioned under the reel 100, and equilibrium arm 32 is positioned at the side that left and right steel rope lays out from reel, is used for the antiwind space of avoiding left and right steel rope mutually to twine when leaving between equilibrium arm and the left and right fixed pulley group between the left and right fixed pulley group of left and right steel rope pile warp and left and right running block and equilibrium arm.This structure can be so that apart far away of the branch of steel rope between running block and fixed pulley group, so that steel rope twines in a larger space, thus the winding of avoiding steel rope may occur each other.
Two steel ropes are provided on the reel of the lifting mechanism that provides in the present embodiment, two steel ropes and corresponding running block, fixed pulley form the tackling system that two covers independently are used for the lifting article, when even if steel cable ruptures suddenly like this, another root steel rope still can work on the handling article, actv. prevents from being dropped by the accident of handling article, and makes hanging object keep balance.Be specially adapted on the little tonnage crane for steelworks use of handling liquid metal.
In the above-described embodiments, reel comprises the left and right reel of synchronization action, and these two reels are driven by same motor, retarder after connecting by shaft coupling transmission.Perhaps in other embodiments, reel also can for the long single drum of a length, arrange around getting final product to opposite left and right reel in the both sides of single drum.
In the above-described embodiments, equilibrium arm is positioned at the side that steel rope lays out from reel, can stay antiwind space like this between equilibrium arm and reel.In other embodiments, also equilibrium arm can be arranged on reel under, only otherwise the normal winding that affects steel rope gets final product.
Claims (4)
1. hoisting mechanism for crane, comprise mechanism rack, be provided with the reel that length is extended along left and right directions on the mechanism rack, be wound with steel rope on the reel, it is characterized in that: described steel rope has two, reel is for supplying two left sides that steel rope twines respectively, right reel, two steel ropes are for to be wrapped in respectively a left side with opposite winding direction, a left side that on the right reel and all lays out from the same side of reel, right steel rope, be furnished with a left side that is installed on the mechanism rack along left and right directions below the reel, right fixed pulley group and being used for and the left side of the fixing assembling of suspender of described lifting mechanism, right running block, a described left side, right fixed pulley group and a left side, all comprise at least two pulleys in the right running block, left, the central axis of right fixed pulley group all extends along fore-and-aft direction, left, the central axis of right running block all extends along left and right directions, described lifting mechanism comprises that also the middle part is hinged on equilibrium arm on the mechanism rack, and described left steel rope is laying out left reel and the left running block of pile warp successively, left fixed pulley group, right-hand member with described equilibrium arm behind right fixed pulley group and the right running block is connected; Described right steel rope is laying out right reel and is being connected with the left end of described equilibrium arm behind the right running block of pile warp, right fixed pulley group, left fixed pulley group and the left running block successively.
2. hoisting mechanism for crane according to claim 1, it is characterized in that: described left and right reel is connected synchronously by coupler, and both rotate synchronously.
3. hoisting mechanism for crane according to claim 1 and 2, it is characterized in that: described left and right fixed pulley group all is positioned under the reel, described equilibrium arm is positioned at the side that left and right steel rope lays out from reel, is used for the antiwind space of avoiding left and right steel rope mutually to twine when leaving between equilibrium arm and the left and right fixed pulley group between the left and right fixed pulley group of left and right steel rope pile warp and left and right running block and location division.
4. hoisting mechanism for crane according to claim 3, it is characterized in that: the two ends of described equilibrium arm respectively are provided with hanger, and each is connected with steel cable by described hanger respectively at the two ends of equilibrium arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516936 CN202848945U (en) | 2012-10-10 | 2012-10-10 | Hoisting mechanism for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516936 CN202848945U (en) | 2012-10-10 | 2012-10-10 | Hoisting mechanism for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202848945U true CN202848945U (en) | 2013-04-03 |
Family
ID=47980165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220516936 Expired - Fee Related CN202848945U (en) | 2012-10-10 | 2012-10-10 | Hoisting mechanism for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202848945U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407921A (en) * | 2013-09-05 | 2013-11-27 | 太原重工股份有限公司 | Lifting mechanism of crane |
| CN105947566A (en) * | 2016-07-01 | 2016-09-21 | 中国重型机械研究院股份公司 | Remote synchronous drive mechanism |
| CN107500162A (en) * | 2017-10-17 | 2017-12-22 | 马鞍山钢铁股份有限公司 | The anti-480 tons of driving master file wirerope-windings equalizer bar of one kind improves device |
| CN111634813A (en) * | 2020-05-07 | 2020-09-08 | 太原重工股份有限公司 | Hoisting mechanism of crane |
| CN113173504A (en) * | 2021-04-23 | 2021-07-27 | 韶关市泰力起重机有限公司 | European crane with protection device |
-
2012
- 2012-10-10 CN CN 201220516936 patent/CN202848945U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407921A (en) * | 2013-09-05 | 2013-11-27 | 太原重工股份有限公司 | Lifting mechanism of crane |
| CN103407921B (en) * | 2013-09-05 | 2015-06-24 | 太原重工股份有限公司 | Lifting mechanism of crane |
| CN105947566A (en) * | 2016-07-01 | 2016-09-21 | 中国重型机械研究院股份公司 | Remote synchronous drive mechanism |
| CN105947566B (en) * | 2016-07-01 | 2019-05-10 | 中国重型机械研究院股份公司 | A kind of remote synchronization driving mechanism |
| CN107500162A (en) * | 2017-10-17 | 2017-12-22 | 马鞍山钢铁股份有限公司 | The anti-480 tons of driving master file wirerope-windings equalizer bar of one kind improves device |
| CN111634813A (en) * | 2020-05-07 | 2020-09-08 | 太原重工股份有限公司 | Hoisting mechanism of crane |
| CN113173504A (en) * | 2021-04-23 | 2021-07-27 | 韶关市泰力起重机有限公司 | European crane with protection device |
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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: 20130403 Termination date: 20181010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |