CN104176648A - Luffing fixed crane for wire rope of single-arm rack - Google Patents

Luffing fixed crane for wire rope of single-arm rack Download PDF

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Publication number
CN104176648A
CN104176648A CN201410386487.1A CN201410386487A CN104176648A CN 104176648 A CN104176648 A CN 104176648A CN 201410386487 A CN201410386487 A CN 201410386487A CN 104176648 A CN104176648 A CN 104176648A
Authority
CN
China
Prior art keywords
wire rope
luffing
steel wire
crane
single arm
Prior art date
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.)
Withdrawn
Application number
CN201410386487.1A
Other languages
Chinese (zh)
Inventor
梁奕普
张维友
陈亦武
王剑国
罗洪亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Wuxin Heavy Industry Co Ltd
Hunan China Railway Wuxin Heavy Industry Co Ltd
Original Assignee
Hunan China Railway Wuxin Heavy Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hunan China Railway Wuxin Heavy Industry Co Ltd filed Critical Hunan China Railway Wuxin Heavy Industry Co Ltd
Priority to CN201410386487.1A priority Critical patent/CN104176648A/en
Publication of CN104176648A publication Critical patent/CN104176648A/en
Withdrawn legal-status Critical Current

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Abstract

The invention discloses a luffing fixed crane for a wire rope of a single-arm rack. A stand column is connected to a slewing stable and replaces an A-frame in the prior art, a guiding sheave and a compensation sheave are fixed at the upper end of the stand column so as to realize the clockwise enwinding of the wire rope, and the service life of the wire rope is prolonged. The lower end of an arm rest of the luffing fixed crane is hinged to the middle part of the stand column so as to lower the center of gravity of the whole crane and improve the stability of the whole crane. In order to facilitate maintenance, a luffing mechanism is arranged on the top of a machine room. In order to overcome the potential safety hazard that the arm rest in the prior art is likely to drop out, a safety device which does not influence the normal use of the whole crane is arranged between the arm rest and the stand column. When a luffed wire rope of a wire rope luffing fixed crane is broken, the safety device can pull the arm rest for safety protection. In order to overcome the defect that the wire rope in the prior art often jumps from a groove, a wire rope jumping slot prevention device is connected to each sheave shaft, so that the wire rope can penetrates through the space between the sheave and a pressing wheel to be prevented from jumping from a sheave groove, and the service life of the wire rope is further prolonged.

Description

Single arm frame steel wire rope luffing stationary crane
Technical field
The present invention relates to a kind of hoisting crane, be specifically related to a kind of single arm frame steel wire rope luffing stationary crane.
Background technology
Single arm frame steel wire rope luffing stationary crane is a kind of preparation of construction for port and pier.But in current single arm frame steel wire rope luffing stationary crane structure, there is following defect: one, the lower end of jib is articulated with on revolution turntable, in order to meet the needs of lifting altitude, the essential height that improves revolution turntable lower end supporting cylinder, the center of gravity of hoisting crane also just and then improves, and has so just affected the stability of complete machine; The structure of two, leading sheave and tension pulley being installed adopts the version of Shears, and causing like this turning round the winding that turntable need strengthen and limit hoist rope must, through a reverse winding pulley, shorten the service life of steel rope greatly; Three, rope luffing mechanism is arranged in machine room, causes the space in machine room to be reduced, and maintenance is inconvenient; Four, the steel rope in pulley groove is often job-hoped, and causes steel rope especially easily to damage, and greatly reduced the service life of steel rope, has reduced like this work efficiency of hoisting crane and has increased the expense of keeping in repair; Five, jib does not have safety guard, once wire cable rupture jib exists the potential safety hazard dropping.
Summary of the invention
The object of the present invention is to provide that a kind of safety performance is high, the single arm frame steel wire rope luffing stationary crane of long service life.
This single arm frame steel wire rope luffing stationary crane disclosed by the invention, comprises supporting cylinder, revolution turntable, machine room, lifting mechanism, luffing mechanism, leading sheave, tension pulley, variable-amplitude steel wire rope, hoist rope, lifting pulley, jib, swivel coupling and suspender.Also comprise the column being connected on described revolution turntable, the top of column is fixed with described leading sheave and tension pulley, and the lower end of described jib is articulated with the middle part of column.
Leading sheave on described column is positioned at the inner side that its top, tension pulley are located thereon portion.
It is upper that described luffing mechanism is positioned at described machine room top, saved the space in machine room.
Between described column and jib, be hinged with the safety device being comprised of steel rope, joint and the collar, the two ends of steel rope connect respectively a joint, and the outer end of joint is all connected with the collar.
Described joint is compacting rigid joint, and the collar is the steel rope collar.
On described each pulley, be provided with preventing wire rope from falling slot device, this device comprises support, bearing pin and pinch roller; Support has two, and their lower end is connected to the both sides of sheave shaft top sheave; Bearing pin is vertically connected at the upper end of two stands, the top of pulley; Pinch roller is vertically connected on bearing pin, and its outer rim is useful on and prevents that steel rope is from the circular groove of the indent jumped out in pulley groove, and the position of circular groove is corresponding with the position of steel rope.
The lower end symmetry of described two supports is connected on described sheave shaft.
Described pinch roller is positioned at the midway location place of described bearing pin.
Between the both sides of described pinch roller and support, be all connected with for making the sleeve of pinch roller axial limiting.
Stretch out respectively outside the support of corresponding side at the two ends of described bearing pin, and its two ends are connected with respectively the clamp that is positioned at support outside and make bearing pin axial limiting.
The present invention installs leading sheave and tension pulley by being fixed on the Shears of the alternative prior art of column on revolution turntable, making steel rope is all along rich and mistake from pulley, finally by swivel coupling, be connected with suspender, overcome the back-roll situation of prior art hoist rope, the service life of greatly having improved steel rope.The lower end of jib is articulated with the middle part of column, under the constant situation of lifting altitude, with being articulated with on revolution turntable of prior art, compares, and greatly reduces the center of gravity of complete machine, thus the corresponding stability that improves complete machine.
In order to overcome prior art, keep in repair inconvenient defect, the present invention is positioned at luffing mechanism on described machine room top.
In order to overcome prior art jib, there is the potential safety hazard dropping, the present invention is provided with safety device between jib and column, between the joint of safety device, by steel rope, connect, its two ends and rope luffing fixedly hang between column and jib and adopt hinged type of attachment, guarantee that like this this device does not affect the normal use that rope luffing fixedly hangs.Fixedly hang when rope luffing variable-amplitude steel wire rope fracture time, this device can be held jib and stop it to continue the generation safety misadventure that drops that glides, and plays safety guard-safeguard effect.
In order to overcome the defect that in prior art pulley groove, steel rope is often job-hoped, the present invention is connecting steel wire ropes groove separation preventing device on sheave shaft, this device is connected on sheave shaft by support, steel rope passes between pulley and the pinch roller of its top, thereby effectively prevent that steel rope from jumping out in pulley groove, extend the service life of steel rope and improve its safety in utilization.
Accompanying drawing explanation
Fig. 1 is the structural representation (do not draw steel rope and put de-slot device) of one embodiment of the invention.
Fig. 2 is the structure for amplifying schematic diagram of safety device in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram that is connected in the preventing wire rope from falling slot device on sheave shaft.
The specific embodiment
As shown in Figure 1 to Figure 3, this single arm frame steel wire rope luffing stationary crane disclosed by the invention, comprises supporting cylinder 1, revolution turntable 2, machine room 3, lifting mechanism 4, luffing mechanism 5, column 6, leading sheave 7, tension pulley 8, variable-amplitude steel wire rope 9, hoist rope 10, jib 11, power taking load device 12, lifting pulley 13, swivel coupling 14 and suspender 15.
The lower end of supporting cylinder 1 is connected on ground with holding-down bolt, and top is connected with revolution turntable 2, and revolution turntable 2 can rotate by 360 deg, facilitates the handling of goods.Revolution turntable 2 is provided with machine house 3, lifting mechanism 4 and column 6, and machine room 3 is positioned at a side of column 6.The lower end of jib 11 is articulated with the middle part of column 6.The top of column is fixed with that leading sheave 7, upper inner are fixed with tension pulley 8, upper outside is fixed with power taking load device 12.The head outer end of jib 11 is fixed with lifting pulley 13, inner portion is fixed with tension pulley 8.Luffing mechanism 5 is positioned on the top of machine room 3.
Between column 6 and jib 11, be hinged with the safety device 16 being formed by steel rope 161, compacting rigid joint 162 and the steel rope collar 163.The two ends of steel rope 161 connect respectively a compacting rigid joint 162, and the outer end of compacting rigid joint 162 is all connected with the steel rope collar 163.
On aforementioned each pulley, be provided with the preventing wire rope from falling slot device 17 being formed by support 171, bearing pin 172 and pinch roller 173, sleeve 174, clamp 175.Support 171 has two, and their lower end symmetry is connected in the both sides of sheave shaft top sheave.Bearing pin 172 is vertically connected at the upper end of two stands 171, the top of pulley.Pinch roller 173 is vertically connected at bearing pin 172 midway location places, and its outer rim is useful on and prevents that steel rope is from the circular groove of the indent jumped out in pulley groove, and the position of circular groove is corresponding with the position of steel rope.Between the both sides of pinch roller 173 and support 171, be all connected with for making the sleeve 174 of pinch roller axial limiting.
Stretch out respectively outside the support 171 of corresponding side at the two ends of bearing pin 172, and its two ends are connected with respectively the clamp 175 that is positioned at support 171 outsides and make bearing pin 172 axial limitings.
One end of variable-amplitude steel wire rope 9 is fixed on the reel of luffing mechanism 5, the other end walk around successively the leading sheave 7 on column 6 tops, the tension pulley 8 of the tension pulley 8 of jib 11 inner portion, column 6 upper inner, be fixed on column 6 after the tension pulley 8 of jib 11 inner portion.By starting luffing mechanism 5, drive its reel by the rotation of different directions, to realize the folding and unfolding of variable-amplitude steel wire rope 9, before drive jib 11, put and rear receipts, finally realize the front and back of goods and place.
One end of hoist rope 10 is fixed on the reel of lifting mechanism 4, the other end walks around successively the power taking load device 12 of column 6 upper outside, the tension pulley 8 of the leading sheave 7 on top, jib 11 inner portion, the lifting pulley 13 of the tension pulley 8 of column 6 upper inner and jib 11 head outer ends, finally be connected with the upper end of swivel coupling 14, the lower end of swivel coupling 14 is connected with suspender 15.By starting lifting mechanism 4, drive its reel by the rotation of different directions, to realize the folding and unfolding of hoist rope 10, finally realize the lifting of suspender 15.Suspender 15 can be selected suspension hook, grab bucket and container spreader as required.

Claims (10)

1. a single arm frame steel wire rope luffing stationary crane, comprise supporting cylinder, revolution turntable, machine room, lifting mechanism, luffing mechanism, leading sheave, tension pulley, variable-amplitude steel wire rope, hoist rope, lifting pulley, jib, swivel coupling and suspender, it is characterized in that: this hoisting crane also comprises the column being connected on described revolution turntable, the top of column is fixed with described leading sheave and tension pulley, and the lower end of described jib is articulated with the middle part of column.
2. single arm frame steel wire rope luffing stationary crane as claimed in claim 1, is characterized in that: the leading sheave on described column is positioned at the inner side that its top, tension pulley are located thereon portion.
3. single arm frame steel wire rope luffing stationary crane as claimed in claim 1, is characterized in that: described luffing mechanism is positioned on described machine room top.
4. single arm frame steel wire rope luffing stationary crane as claimed in claim 1, it is characterized in that: between described column and jib, be hinged with the safety device being formed by steel rope, joint and the collar, the two ends of steel rope connect respectively a joint, and the outer end of joint is all connected with the collar.
5. single arm frame steel wire rope luffing stationary crane as claimed in claim 4, is characterized in that: described joint is compacting rigid joint, and the collar is the steel rope collar.
6. single arm frame steel wire rope luffing stationary crane as claimed in claim 1, is characterized in that: on described each pulley, be provided with preventing wire rope from falling slot device, this device comprises support, bearing pin and pinch roller; Support has two, and their lower end is connected to the both sides of sheave shaft top sheave; Bearing pin is vertically connected at the upper end of two stands, the top of pulley; Pinch roller is vertically connected on bearing pin, and its outer rim is useful on and prevents that steel rope is from the circular groove of the indent jumped out in pulley groove, and the position of circular groove is corresponding with the position of steel rope.
7. single arm frame steel wire rope luffing stationary crane as claimed in claim 6, is characterized in that: the lower end symmetry of described two supports is connected on described sheave shaft.
8. single arm frame steel wire rope luffing stationary crane as claimed in claim 6, is characterized in that: described pinch roller is positioned at the midway location place of described bearing pin.
9. single arm frame steel wire rope luffing stationary crane as claimed in claim 8, is characterized in that: between the both sides of described pinch roller and support, be all connected with for making the sleeve of pinch roller axial limiting.
10. single arm frame steel wire rope luffing stationary crane as claimed in claim 1, is characterized in that: stretch out respectively outside the support of corresponding side at the two ends of described bearing pin, and its two ends are connected with respectively the clamp that is positioned at support outside and make bearing pin axial limiting.
CN201410386487.1A 2014-08-08 2014-08-08 Luffing fixed crane for wire rope of single-arm rack Withdrawn CN104176648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410386487.1A CN104176648A (en) 2014-08-08 2014-08-08 Luffing fixed crane for wire rope of single-arm rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410386487.1A CN104176648A (en) 2014-08-08 2014-08-08 Luffing fixed crane for wire rope of single-arm rack

Publications (1)

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CN104176648A true CN104176648A (en) 2014-12-03

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104627885A (en) * 2015-01-29 2015-05-20 徐工集团工程机械股份有限公司 Guiding device for optimizing steel wire rope elevation angle
CN104627861A (en) * 2015-02-20 2015-05-20 徐工集团工程机械股份有限公司 Sectioned disassembly-free folding type rope stop device and cantilever crane system with same
CN106044587A (en) * 2016-08-15 2016-10-26 广东中艺重工有限公司 Fixed crane
CN107337110A (en) * 2017-08-23 2017-11-10 黄河科技学院 The interim simple lifting appliance of road construction
CN112695999A (en) * 2020-12-24 2021-04-23 鸿厦建设有限公司 Hoist and mount protection device suitable for building outer wall operation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104627885A (en) * 2015-01-29 2015-05-20 徐工集团工程机械股份有限公司 Guiding device for optimizing steel wire rope elevation angle
CN104627861A (en) * 2015-02-20 2015-05-20 徐工集团工程机械股份有限公司 Sectioned disassembly-free folding type rope stop device and cantilever crane system with same
CN104627861B (en) * 2015-02-20 2016-10-26 徐工集团工程机械股份有限公司 A kind of segmentation is exempted from assembling-disassembling foldable formula rope blocking means and has the boom system of this rope blocking means
CN106044587A (en) * 2016-08-15 2016-10-26 广东中艺重工有限公司 Fixed crane
CN107337110A (en) * 2017-08-23 2017-11-10 黄河科技学院 The interim simple lifting appliance of road construction
CN107337110B (en) * 2017-08-23 2019-10-22 黄河科技学院 The interim simple lifting appliance of road construction
CN112695999A (en) * 2020-12-24 2021-04-23 鸿厦建设有限公司 Hoist and mount protection device suitable for building outer wall operation
CN112695999B (en) * 2020-12-24 2022-03-11 鸿厦建设有限公司 Hoist and mount protection device suitable for building outer wall operation

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Application publication date: 20141203