CN108792977A - A kind of rope guide and application method for reel double winding steel wire rope - Google Patents
A kind of rope guide and application method for reel double winding steel wire rope Download PDFInfo
- Publication number
- CN108792977A CN108792977A CN201810908731.4A CN201810908731A CN108792977A CN 108792977 A CN108792977 A CN 108792977A CN 201810908731 A CN201810908731 A CN 201810908731A CN 108792977 A CN108792977 A CN 108792977A
- Authority
- CN
- China
- Prior art keywords
- rope
- steel wire
- ring structure
- wire rope
- conductor
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
- B66D1/38—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
Abstract
The present invention relates to a kind of rope guides and application method for hoist roller double winding steel wire rope,Include the conductor rope ring structure of three layers of circular ring shape,Adjacent two layers conductor rope ring structure is fixedly connected by supporting block,And with the space for accommodating steel wire penetrating to be spooled,Conductor rope ring structure positioned at middle layer is spliced to form by torus knot and expansion joint,The conductor rope ring structure of the conductor rope ring structure both sides of middle layer is by torus knot,Expansion joint and arcuate section are spliced to form,It is fixed with connection ring in the arcuate section,Multiple first idler wheels are equipped between the conductor rope ring structure of middle layer and the conductor rope ring structure of side,Multiple second idler wheels are equipped between the conductor rope ring structure of middle layer and the conductor rope ring structure of the other side,The diameter of second idler wheel is more than the diameter of the first idler wheel,The rope guide of the present invention is simple in structure,It is easy to process,Effectively prevent the disorder cable phenomenon of double winding steel wire rope.
Description
Technical field
The present invention relates to technical field of crane equipment, and in particular to a kind of conductor rope for reel double winding steel wire rope
Device and application method.
Background technology
Crane is traditional heavy-duty machinery, and with flourishing for China's manufacturing industry, crane generally applies to
The places such as workshop, harbour, construction site, crane moves the unique advantage of weight by its short distance, in production operation
In possess irreplaceable role.
At this stage, bridge-type double beam hoist roller wiring mostly uses single-layer winding, encounters the higher situation of lifting altitude, greatly
It is mostly solved by increasing the methods of drum diameter, reduction pulley multiplying power, these methods can bring crane dead weight increase, cost to carry
The problems such as high.Therefore bridge crane cost performance under the operating mode of higher lifting altitude decreases.
Currently, the double winding of steel wire rope, existing twin-laminate roll can be used for the higher situation of lifting height of crane
General dual layer winding is mostly used around scheme, refers to after first layer has been wound, after steel wire rope encounters gear fake at the both ends of reel
It is reversed to start the second circle of winding.When carrying out second layer winding, steel wire rope is directly around on the first layer, due to there is no guide groove,
The phenomenon that easy ting produce steel wire rope entanglement, therefore there is an urgent need for design a kind of rope guide being suitable for the double-deck coiling, general dual layer winding
Method is two-way winding, is unfavorable for disposing rope guide.
In having patent, Henan Xinyu Petroleum Machinery Manufacturing Co., Ltd.'s " Novel crane winding-drum rope guiding device " is special
Profit number：201520974258.1, a kind of idea is provided, it is this by rope guide liner, connection bolt, rope guide pressing plate, compression
The compositions such as bolt, tensioning screw cap, turnbuckle, connection gasket ring, connection are bolted four ends of five arc liners of rope guide
Point, the last one endpoint is connected to by connection gasket ring on hold-down bolt, and is connected with turnbuckle, by being connected to turnbuckle
On tensioning screw cap make rope guide pressing plate compress, to adjust the rope guide liner gap to be formed since steel wire rope rubs, will lead
Rope device pressing plate is placed is processed into kidney slot at steel wire rope, and the steel wire wound can be installed in the case where not removing rope guide
Rope.The shortcomings that this rope guide, is the idler wheel that it can not be rolled along grooving, rope guide along reel axial movement entirely according to
By steel wire rope to the axial force of rope guide, abrasion of the steel wire rope to rope guide is thus increased.
Irrigate hoisting machinery (Shanghai) Co., Ltd. " rope guide " patent No. in Rider：201520638941.8 illustrating another
Kind rope guide.This rope guide, including wire line guide and motion guiding device, wire line guide include lead ring and
Briquetting, briquetting is fixed in the grooving on reel so that the lead ring is mutually fixed with the reel；Motion guiding device include raceway and
Directive wheel, directive wheel are connected with lead ring.Pass through the synergistic effect of wire line guide and motion guiding device, the rope guide
Steel wire rope can be made accurately to be arranged in the grooving on hoisting trolley reel, thoroughly solved on hoisting trolley reel from the root cause
Steel wire rope shows slot, disorder cable problem.The shortcomings that this rope guide is that its briquetting is fixed on reel, is only applicable to single-layer winding
Reel.
Invention content
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of for hoist roller double winding
The rope guide of steel wire rope, it is ensured that the steel wire rope of double winding will not disorder cable, for solving the disorder cable and lifting altitude of the double-deck wiring
The problems such as cost increases when higher is with certain meaning.
To achieve the above object, the present invention uses following technical proposals：
A kind of rope guide for hoist roller double winding steel wire rope includes the conductor rope ring structure of three layers of circular ring shape,
Adjacent two layers conductor rope ring structure is fixedly connected by supporting block, and with the space for accommodating steel wire rope to be spooled, in being located at
The conductor rope ring structure of interbed is spliced to form by torus knot and expansion joint, the conductor rope ring structures of the conductor rope ring structure both sides of middle layer by
Torus knot, expansion joint and arcuate section are spliced to form, and connection ring, the conductor rope ring structure of middle layer and one are fixed in the arcuate section
Multiple first idler wheels are equipped between the conductor rope ring structure of side, between the conductor rope ring structure of middle layer and the conductor rope ring structure of the other side
Equipped with multiple second idler wheels, the diameter of second idler wheel is more than the diameter of the first idler wheel.
Further, the conductor rope ring structure of the middle layer is spliced to form by four torus knots and two expansion joint head and the tail.
Further, the conductor rope ring structure of the conductor rope ring structure both sides of the middle layer is by three torus knots, two compensation
Section and an arcuate section head and the tail are spliced to form.
Further, the torus knot is circular arc type plate-like structure, and the torus knot is equipped with multiple first through hole.
Further, the expansion joint is circular arc type plate-like structure, and the expansion joint is equipped with the second through-hole and circular arc
The waist hole of shape.
Further, the arcuate section is the L-type platy structure of circular arc type, and cross sectional shape is L-type, including the first arc
Plate and second arc panel vertical with the first arc panel, the both ends of the first arc panel are equipped with third through-hole, and the two of the second arc panel
End is equipped with fourth hole.
Further, the connection ring include fit and the third arc panel to match with arcuate section shape and the 4th
There is concentric fifth hole and the 6th through-hole, the other end to have for arc panel, the third arc panel and the 4th arc panel one end
The bending structure of bending structure, third arc panel and the 4th arc panel constitutes structure of rising as high as the banks.
Further, the supporting block is hollow tubular structures, passes through bolt in supporting block, bolt end tightening nut,
Realize being fixedly connected for adjacent layer conductor rope ring structure.
Further, first idler wheel and the second idler wheel are rotatably coupled in support shaft, and the support shaft passes through
The conductor rope ring structure of middle layer, both ends are fixed on the conductor rope ring structure of both sides.
The invention also discloses the application method of the rope guide for hoist roller double winding steel wire rope, including it is following
Step：
Step 1：Three layers of conductor rope ring structure of rope guide are spliced into connection, are sleeved on reel, reel bottom steel wire rope is lived
The movable end of reel upper layer steel wire rope is passed through the by space of the moved end across two layers of conductor rope ring structure where the second idler wheel
The space between two layers of conductor rope ring structure where one idler wheel, in gap of first idler wheel between the steel wire rope of upper layer, second
Idler wheel is contacted with the grooving of reel, and two of rope guide structures of rising as high as the banks are inserted on trolley frame in fixed stripe board.
Step 2：Spool turns, grooving drive the rotation of the second idler wheel, the spiral helicine grooving of mandrel surface to push rope guide edge
Reel is axially moved, and drives bottom steel wire rope uniform winding on grooving, upper layer steel wire rope uniform winding is in bottom steel wire rope
In gap, the winding in the same direction of two layers of steel wire rope is realized, bottom steel wire rope always enclose more than the steel wire rope of upper layer by winding one, upper layer steel wire
Rope is still fallen in the gap of bottom steel wire rope.
Beneficial effects of the present invention：
1. double winding steel wire rope may be implemented in the rope guide of the present invention, unrest when double winding steel wire rope is efficiently solved
Rope problem avoids and avoids using twin-laminate roll by reducing the methods of pulley block ratio or increase drum diameter in the prior art
Around making the increased defect of crane cost.
2. the rope guide of the present invention is assembled using multiple links, simple in structure, easy for removal and installation, while conductor rope
Each building block of device can reduce the cost of rope guide itself by being simply machined to obtain.
3. the rope guide of the present invention, the second idler wheel contacts with the grooving on reel, and when spool turns, rope guide is relative to volume
Cylinder is rolled along grooving, so that rope guide can be moved axially with the rotation of reel and along reel, need not individually be led
Device addition of restricting drives.
4. the clad steel cord winding method of the present invention facilitates the setting of rope guide using winding in the same direction.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the restriction to the application for explaining the application.
Fig. 1 is overall structure schematic front view of the present invention；
Fig. 2 is overall structure side, sectional view of the present invention；
Fig. 3 is torus knot structural schematic diagram of the present invention；
Fig. 4 is expansion joint structural schematic diagram of the present invention；
Fig. 5 is arcuate section structural schematic diagram of the present invention；
Fig. 6 is A in Fig. 5 of the present invention to schematic diagram；
Fig. 7 is connection ring structure schematic diagram of the present invention；
Fig. 8 is rope guide of the present invention and reel and steel wire rope assembling schematic diagram；
Wherein, 1. torus knot, 1-1. first through hole, 2. expansion joints, the second through-holes of 2-1., 2-2. waist holes, 3. arcuate sections, 3-
1. the first arc panel, the second arc panels of 3-2., 3-3. third through-holes, 3-4. fourth holes, 4. connection rings, 4-1. third arcs
Plate, the 4th arc panels of 4-2., 4-3. fifth holes, the 6th through-holes of 4-4., 4-5. rise as high as the banks structure, 5. second idler wheels, 6. first rollings
Wheel, 7. supporting blocks, 8. support shafts, 9. reels, 10. reel upper layer steel wire ropes, 11. reel bottom steel wire ropes.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
In order to facilitate narration, if there is "upper", "lower", " left side " " right side " printed words, only expression and attached drawing itself in the present invention
Upper and lower, left and right direction it is consistent, not to structure rise restriction effect, it is only for convenient for description the present invention and simplification retouch
It states, does not indicate or imply the indicated equipment or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
As background technology is introduced, current bridge-type double beam hoist roller wiring mostly uses single-layer winding, encounters
The higher situation of lifting altitude is solved by increasing the methods of drum diameter, reduction pulley multiplying power mostly, these methods can be brought
The problems such as crane dead weight increases, cost improves, is susceptible to disorder cable phenomenon, in view of the above-mentioned problems, this Shen using double winding
It please propose a kind of double winding steel wire rope rope guide.
In a kind of exemplary embodiment of the application, as shown in figures 1-8, a kind of double winding steel wire rope rope guide, packet
Include the conductor rope ring structure of shellring shape, respectively the first conductor rope ring structure, the second conductor rope ring structure and third conductor rope ring structure, institute
The second conductor rope ring structure is stated between the first conductor rope ring structure and third conductor rope ring structure, adjacent conductor rope ring structure passes through branch
Bracer 7 is attached and fixes, and the second idler wheel 5, the second conductor rope are equipped between the second conductor rope ring structure and third conductor rope ring structure
The first idler wheel 6 is equipped between ring structure and the first conductor rope ring structure, the diameter of second idler wheel is more than the diameter of the first idler wheel.
The conductor rope ring structure is spliced to form by torus knot 1, expansion joint 2, arcuate section 3 and connection ring 4.
The torus knot 1 is the circular arc type plate-like structure of certain radian, and five first are uniformly provided on the torus knot
Through-hole 1-1.
The expansion joint 2 is the circular arc type plate-like structure of certain radian, sets that there are one the second through-holes on the expansion joint
The waist hole 2-2 of 2-1 and arc.
The arcuate section 3 is the circular arc type L-type platy structure with certain radian, and section is L-type, including the first arc
The both ends of the plate 3-1 and second arc panel 3-2 vertical with the first arc panel, the first arc panel are equipped with third through-hole 3-3, the second arc
The both ends of shape plate are set there are two fourth hole 3-4.
The connection ring 4 includes the third arc panel 4-1 and the 4th arc 4-2 with certain radian being fitted and connected,
The third arc panel and the 4th arc plate shape match with the second arc panel, third arc panel and the 4th arc panel one end point
Fifth hole 4-3 and the 6th through-hole 4-4 that Ju You be not concentric, the fifth hole and the 6th through-hole all have two, and with
Four shape of through holes match, and there is the other end of third arc panel and the 4th arc panel bending structure, two bending structures to constitute
Structure of rising as high as the banks 4-5.
The first conductor rope ring structure is identical as third conductor rope ring structure, by three torus knots, two expansion joints and one
A arcuate section is constituted, and the both ends of one of torus knot are by first through hole and are bolted one end of other two torus knot,
The other end of other two torus knot passes through first through hole, the second through-hole and the one end for being bolted two expansion joints, two benefits
The other end for repaying section connects the both ends for the first arc panel for saving arcuate section by waist hole, third through-hole and bolt, the arcuate section
Connection ring is fixed with by fourth hole, fifth hole, the 6th through-hole and bolt on second arc panel.
The second conductor rope ring structure is made of four torus knots and two expansion joints, and described two expansion joint one end pass through
The other end at waist hole, first through hole and the both ends for being bolted a torus knot, two expansion joints connects what three head and the tail connected
Torus knot.
The supporting block is hollow tubular structure, and supporting block is located between adjacent two layers conductor rope ring structure, inside wear
Cross fixing bolt, fixing bolt passes through through-hole and supporting block on conductor rope ring structure, and fixing bolt end is tightened nut, real
Now being connected and fixed adjacent two layers conductor rope ring structure.
First idler wheel and the second idler wheel all have four, are arranged concentrically and evenly distributed along conductor rope ring structure, the
One idler wheel and the second idler wheel are rotatably mounted in support shaft 8, and the support shaft uses carrying bolt, the carrying bolt
Three layers of conductor rope ring are passed through by the through-hole on conductor rope ring structure, are fastened using nut, realize carrying bolt in conductor rope ring knot
Fixation on structure.
The invention also discloses a kind of working methods of double winding steel wire rope drum mechanism built, include the following steps：
The invention also discloses the application method of the rope guide for hoist roller double winding steel wire rope, including it is following
Step：
Step 1：Three layers of conductor rope ring structure of rope guide are spliced into connection, are sleeved on reel 9, by reel bottom steel wire rope 11
Space of the movable end across two layers of conductor rope ring structure where the second idler wheel, the movable end of reel upper layer steel wire rope 10 is worn
Cross the space between two layers of conductor rope ring structure where the first idler wheel, in gap of first idler wheel between the steel wire rope of upper layer,
Second idler wheel is contacted with the grooving of reel, and two of rope guide structures of rising as high as the banks are inserted on vehicle frame in fixed stripe board.
Step 2：Spool turns, grooving drive the rotation of the second idler wheel, the spiral helicine grooving of mandrel surface to push rope guide edge
Reel is axially moved, and band movable reel bottom steel wire rope uniform winding is on grooving, and reel upper layer steel wire rope uniform winding is in reel
In the gap of bottom steel wire rope, realize that the winding in the same direction of two layers of steel wire rope, bottom steel wire rope are wound than the steel wire rope of upper layer more always
One circle, upper layer steel wire rope are still fallen in the gap of bottom steel wire rope.
When step 1 rope guide is installed, three layers of conductor rope ring structure of rope guide are spliced to form using bolt, at expansion joint waist hole
Bolt first do not fasten, after rope guide is sleeved on reel, according to position of the reel size adjusting bolt at waist hole, so as to adjust leading
The diameter of becket bridle structure makes the second idler wheel be contacted with grooving, and the first idler wheel and the steel wire rope on reel upper layer is made to contact.
In step 1, when rope guide is moved axially along reel, due to rising as high as the banks, structure is inserted in stripe board, and structure of rising as high as the banks is along item
Shape plate slides, to limit moving radially and rotating for rope guide.
The rope guide of the present invention is simple in structure, easy to process, can effectively avoid disorder cable phenomenon when double winding steel wire rope,
The structure of existing crane can be used in the mechanisms such as reel, vehicle frame, herein without describing in detail.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of rope guide for hoist roller double winding steel wire rope, which is characterized in that leading including three layers of circular ring shape
Becket bridle structure, adjacent two layers conductor rope ring structure are fixedly connected by supporting block, and with for accommodating steel wire penetrating to be spooled
Space, the conductor rope ring structure positioned at middle layer is spliced to form by torus knot and expansion joint, the conductor rope ring structure both sides of middle layer
Conductor rope ring structure be spliced to form by torus knot, expansion joint and arcuate section, connection ring is fixed in the arcuate section, middle layer
It is equipped with multiple first idler wheels between conductor rope ring structure and the conductor rope ring structure of side, the conductor rope ring structure of middle layer and the other side
Multiple second idler wheels are equipped between conductor rope ring structure, the diameter of second idler wheel is more than the diameter of the first idler wheel.
2. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
The conductor rope ring structure for stating middle layer is spliced to form by four torus knots and two expansion joint head and the tail.
3. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
The conductor rope ring structure for stating the conductor rope ring structure both sides of middle layer is spelled by three torus knots, two expansion joints and an arcuate section head and the tail
Connect composition.
4. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
It is circular arc type plate-like structure to state torus knot, and the torus knot is equipped with multiple first through hole.
5. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
It is circular arc type plate-like structure to state expansion joint, and the expansion joint is equipped with the second through-hole and arc-shaped waist hole.
6. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
State arcuate section be circular arc type L-type platy structure, cross sectional shape be L-type, including the first arc panel and with the first arc panel hang down
The both ends of the second straight arc panel, the first arc panel are equipped with third through-hole, and the both ends of the second arc panel are equipped with fourth hole.
7. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
It includes third arc panel that is fitting and matching with arcuate section shape and the 4th arc panel, the third arc to state connection ring
There is concentric fifth hole and the 6th through-hole, the other end to have bending structure, third arc panel for plate and the 4th arc panel one end
And the 4th the bending structure composition of arc panel rise as high as the banks structure.
8. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
It is hollow tubular structures to state supporting block, and bolt, bolt end tightening nut is passed through to realize adjacent layer conductor rope ring structure in supporting block
Be fixedly connected.
9. a kind of rope guide for hoist roller double winding steel wire rope as described in claim 1, which is characterized in that institute
It states the first idler wheel and the second idler wheel is rotatably coupled in support shaft, the support shaft passes through the conductor rope ring structure of middle layer,
Both ends are fixed on the conductor rope ring structure of both sides.
10. a kind of use of claim 1-9 any one of them for the rope guide of hoist roller double winding steel wire rope
Method, which is characterized in that include the following steps：
Step 1：Three layers of conductor rope ring structure of rope guide are spliced into connection, are sleeved on reel, by reel bottom steel wire rope movable end
The movable end of reel upper layer steel wire rope is passed through the first rolling by the space across two layers of conductor rope ring structure where the second idler wheel
The space between two layers of conductor rope ring structure where taking turns, in gap of first idler wheel between the steel wire rope of upper layer, the second idler wheel
It is contacted with the grooving of reel, two of rope guide structures of rising as high as the banks is inserted on trolley frame in fixed stripe board；
Step 2：Spool turns, grooving drive the rotation of the second idler wheel, the spiral helicine grooving of mandrel surface to push rope guide along reel
It is axially moved, drives bottom steel wire rope uniform winding on grooving, upper layer steel wire rope uniform winding is in the gap of bottom steel wire rope
In, realize the winding in the same direction of two layers of steel wire rope, one circle of winding, upper layer steel wire rope begin bottom steel wire rope more than the steel wire rope of upper layer always
It falls into eventually in the gap of bottom steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908731.4A CN108792977A (en) | 2018-08-10 | 2018-08-10 | A kind of rope guide and application method for reel double winding steel wire rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908731.4A CN108792977A (en) | 2018-08-10 | 2018-08-10 | A kind of rope guide and application method for reel double winding steel wire rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108792977A true CN108792977A (en) | 2018-11-13 |
Family
ID=64079832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810908731.4A Withdrawn CN108792977A (en) | 2018-08-10 | 2018-08-10 | A kind of rope guide and application method for reel double winding steel wire rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108792977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007442A (en) * | 2021-03-10 | 2021-06-22 | 辽宁三三工业有限公司 | A hose pipeline wind for section of jurisdiction erector |
| CN114701963A (en) * | 2022-03-26 | 2022-07-05 | 河南卫华重型机械股份有限公司 | Full-surrounding rope-dropping-preventing device for steel wire rope reel |
-
2018
- 2018-08-10 CN CN201810908731.4A patent/CN108792977A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007442A (en) * | 2021-03-10 | 2021-06-22 | 辽宁三三工业有限公司 | A hose pipeline wind for section of jurisdiction erector |
| CN113007442B (en) * | 2021-03-10 | 2022-08-05 | 辽宁三三工业有限公司 | A hose pipeline wind for section of jurisdiction erector |
| CN114701963A (en) * | 2022-03-26 | 2022-07-05 | 河南卫华重型机械股份有限公司 | Full-surrounding rope-dropping-preventing device for steel wire rope reel |
| CN114701963B (en) * | 2022-03-26 | 2023-06-20 | 河南卫华重型机械股份有限公司 | Full-encircling rope-releasing preventing device for steel wire rope winding drum |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181113 |
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| WW01 | Invention patent application withdrawn after publication |