CN111422772A - Marine pulley lifting system and installation method thereof - Google Patents
Marine pulley lifting system and installation method thereof Download PDFInfo
- Publication number
- CN111422772A CN111422772A CN202010310338.2A CN202010310338A CN111422772A CN 111422772 A CN111422772 A CN 111422772A CN 202010310338 A CN202010310338 A CN 202010310338A CN 111422772 A CN111422772 A CN 111422772A
- Authority
- CN
- China
- Prior art keywords
- pulley
- fixed
- fixed pulley
- seat
- changing
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
- B66D3/08—Arrangements of sheaves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/08—Arrangement of ship-based loading or unloading equipment for cargo or passengers of winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/02—Hoists or accessories for hoists
- B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
- B66D2700/028—Pulley blocks with multiple sheaves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a pulley lifting system for a ship and an installation method thereof, and relates to the field of lifting devices. The pulley lifting system for the ship comprises a support, a winch, a fixed pulley block and a movable pulley block arranged on the lower side of the fixed pulley block, wherein the support is provided with a connecting structure for fixedly mounting with a surrounding well structure, a fixed pulley seat is arranged on the support, and the fixed pulley block is rotatably mounted in the fixed pulley seat; and the upper part of the support is also provided with a turning pulley seat, a turning pulley is rotatably arranged in the turning pulley seat, a steel wire rope is wound in the fixed pulley block and the movable pulley block, and the steel wire rope is wound to the upper surface of the turning pulley and is connected with a winch. The turning pulley seat is arranged at the upper part of the support, so that the fixed pulley seat and the turning pulley seat are arranged in a staggered manner in space, mutual interference between the fixed pulley block and the turning pulley is avoided, the outgoing line position of the steel wire rope is adjusted through the turning pulley, and the steel wire rope can be smoothly led out to a winch from the surrounding well structure.
Description
Technical Field
The invention relates to the technical field of lifting devices, in particular to a pulley lifting system for a ship and an installation method thereof.
Background
On large engineering ships, corresponding lifting systems are usually required to be configured to realize corresponding lifting operation, and particularly when heavy construction is involved, pulley lifting systems are commonly used to ensure lifting load.
If chinese utility model patent that the bulletin number is CN207419566U, the bulletin date of authority is 2018.05.29 discloses a hoist system that ship was inhaled to the hank, and specifically disclosed hoist system includes the winch, the portal frame, gallows and crane span structure, the lower extreme at the gallows is connected to the crane span structure, the fixed crown block that is provided with on the portal frame, still be provided with on the portal frame and can wobbling swing the assembly pulley, the fixed running block that is provided with on the gallows, the crown block, the pulley in swing assembly pulley and the running block links together through the rope transmission, the first end of rope is connected on the portal frame, the second end of rope is connected on the winch, thereby under the pulling effect of winch to the rope, drive the gallows and carry out the elevating movement. The lifting system of the cutter suction ship can increase the crane span structure lifting weight of the system by changing the number of pulleys in the fixed pulley block, the swinging pulley block and the movable pulley block, thereby meeting the requirement of the crane span structure lifting weight increase.
However, when a pulley lifting system is added to an existing ship, since the winch is generally disposed on the deck of the ship body, the pulley lifting system is located outside the deck, for example: the ship body is provided with a surrounding well structure which is communicated up and down, the pulley lifting system is arranged in the surrounding well structure, and a steel wire rope of the pulley lifting system is difficult to be led to a winch during construction and transformation.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a pulley lifting system for a ship to solve a problem that it is difficult to introduce a wire rope of the pulley lifting system to a winch at the time of construction transformation when the pulley lifting system is disposed in a surrounding well structure. Meanwhile, the invention also aims to provide an installation method of the pulley lifting system for the ship.
The technical scheme of the pulley lifting system for the ship comprises the following steps:
the pulley lifting system for the ship comprises a support, a winch, a fixed pulley block and a movable pulley block arranged on the lower side of the fixed pulley block, wherein the support is provided with a connecting structure for fixedly mounting with a surrounding well structure, a fixed pulley seat is arranged on the support, and the fixed pulley block is rotatably mounted in the fixed pulley seat;
the upper part of the bracket is also provided with a direction-changing pulley seat, a direction-changing pulley is rotatably arranged in the direction-changing pulley seat, the lower part of the movable pulley block is provided with a component connecting structure, and steel wire ropes are wound in the fixed pulley block and the movable pulley block and wound to the upper surface of the direction-changing pulley and connected with the winch;
the support is a frame-shaped support, a first cross beam and a second cross beam are arranged in the middle of the frame-shaped support in parallel at intervals, the fixed pulley seat is rotatably installed on the first cross beam, and the direction-changing pulley seat is rotatably installed on the second cross beam; the lower side of the frame-shaped support is further provided with a socket ear plate, a socket is rotatably connected to the socket ear plate, and the socket is fixedly connected with the end part of the steel wire rope.
Has the advantages that: the fixed pulley seat is installed on the first crossbeam, and the diversion pulley seat is installed on the second crossbeam, sets up the diversion pulley seat in the upper portion position of support, and the diversion pulley is installed in the diversion pulley seat to rotate, makes fixed pulley seat and diversion pulley seat stagger in the space and arranges, has avoided causing mutual interference between fixed pulley group and the diversion pulley to adjust the position of being qualified for the next round of competitions of steel wire rope through the diversion pulley, guaranteed that steel wire rope can draw forth smoothly to the winch from enclosing the well structure.
Furthermore, a first rotating shaft is arranged on the first cross beam, the fixed pulley seat is rotatably installed on the first rotating shaft, a fixed pulley shaft is arranged on the fixed pulley seat, at least two fixed pulleys are installed on the fixed pulley shaft, and the first rotating shaft is perpendicular to the extending direction of the fixed pulley shaft.
Further, the fixed pulley seat includes horizontal base plate, fixes the last riser at the horizontal base plate upside to and fix the lower riser in the horizontal base plate downside, be equipped with on the last riser with first pivot complex shaft hole, the parallel interval arrangement of riser has a plurality ofly, and is a plurality of riser perpendicular to down the face of last riser, be equipped with on the riser down with fixed pulley axle complex through-hole.
Furthermore, a second rotating shaft is arranged on the second cross beam, the turning pulley seat is rotatably installed on the second rotating shaft, a turning pulley shaft is arranged on the turning pulley seat, the turning pulley is rotatably installed on the turning pulley shaft, and the second rotating shaft is perpendicular to the extending direction of the turning pulley shaft.
Furthermore, the direction-changing pulley shaft is a pin sensor.
Further, the first rotating shaft and the second rotating shaft are arranged in parallel.
Furthermore, the movable pulley block comprises a movable pulley shaft and a plurality of movable pulleys mounted on the movable pulley shaft, and the number of the movable pulleys is one more than that of the fixed pulleys.
The technical scheme of the installation method of the pulley lifting system for the ship comprises the following steps:
the installation method of the pulley lifting system for the ship comprises the following steps:
the method comprises the following steps: a fixed pulley seat and a turning pulley seat positioned at the upper part of the bracket are arranged on the bracket;
step two: rotatably mounting a fixed pulley block on the fixed pulley seat, and rotatably mounting a direction-changing pulley on the direction-changing pulley seat;
step three: correspondingly and fixedly installing the connecting structure of the bracket on the surrounding well structure;
step four: the traction rope is sequentially wound through a winch, a turning pulley, a movable pulley block and a fixed pulley block, and then the traction rope is connected with a steel wire rope;
step five: and starting the winch to wind the traction rope and the steel wire rope, and connecting the steel wire rope with the winch.
Has the advantages that: the turning pulley seat is arranged at the upper part of the support, the turning pulleys are rotatably arranged in the turning pulley seat, the fixed pulley seat and the turning pulley seat are arranged in a staggered mode in space, mutual interference between the fixed pulley block and the turning pulleys is avoided, the outgoing line position of the steel wire rope is adjusted through the turning pulleys, and the steel wire rope can be smoothly led out of the surrounding well structure to the winch.
Drawings
Fig. 1 is a schematic front view of a ship block lifting system (omitting a movable pulley block) in an embodiment 1 of the ship block lifting system of the present invention;
FIG. 2 is a schematic top view of the frame support of the marine sheave hoist system of FIG. 1;
fig. 3 is a vertical sectional view of the fixed pulley block and the first beam in fig. 1;
fig. 4 is a right-side view schematically illustrating the fixed pulley block and the first cross beam in fig. 3;
FIG. 5 is an assembled side view of the diverting pulley of FIG. 1;
fig. 6 is a schematic structural diagram of a ship block lifting system according to embodiment 1 of the present invention.
In the figure: 1. a frame-shaped support; 10. a first cross member; 11. a second cross member; 12. a grommet ear plate; 2. a fixed pulley block; 20. a fixed pulley seat; 200. a horizontal substrate; 201. an upper vertical plate; 202. a lower vertical plate; 21. a fixed pulley; 22. a first rotating shaft; 23. a fixed pulley shaft; 3. a movable pulley block; 31. a movable pulley; 32. a movable pulley shaft; 40. a direction-changing pulley seat; 41. a direction-changing pulley; 42. a second rotating shaft; 43. a direction-changing pulley shaft; 5. a surrounding well structure; 6. a steel wire rope; 60. a rope section; 7. and (4) a winch.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the embodiment 1 of the marine pulley lifting system of the present invention, as shown in fig. 1 to 6, the marine pulley lifting system includes a bracket, a winch 7, a crown block 2, and a movable pulley block 3 disposed on a lower side of the crown block 2, the bracket has a connection structure for fixedly mounting with a cofferdam structure 5, in this embodiment, a lifting passage penetrating up and down is opened at a corresponding position of a hull deck, the cofferdam structure 5 is disposed on an outer side of the lifting passage, and the movable pulley block 3 is movably disposed in the lifting passage. In this embodiment, the support is frame support 1, and the shape of frame support 1 is the rectangle, and the lower part of frame support 1 is equipped with the bolt hole, and correspondingly, the upside of enclosing well structure 5 also is equipped with the bolt hole, wears to adorn the bolt in the bolt hole of frame support 1 and the bolt hole of enclosing well structure 5, and threaded mounting has the nut on the bolt, through bolt and nut with frame support 1 and enclosing well knot 5 fixed connection, the bolt hole constitutes the connection structure who is used for with enclosing well structure 5 fixed mounting.
The pulley hoisting device is characterized in that a fixed pulley seat 20 is arranged on a frame-shaped support 1, a fixed pulley block 2 is rotatably installed in the fixed pulley seat 20, a direction-changing pulley seat 40 is further arranged on the upper portion of the frame-shaped support 1, a direction-changing pulley 41 is rotatably installed in the direction-changing pulley seat 40, a component connecting structure (not shown in the figure) is arranged on the lower portion of a movable pulley block 3, a pulley hoisting system and a component to be hoisted are detachably connected through the component connecting structure, a steel wire rope 6 is wound in the fixed pulley block 2 and the movable pulley block 3, and the steel wire rope 6 is wound on the upper surface of the direction-changing pulley. In this embodiment, the first beam 10 and the second beam 11 are arranged in parallel at an interval in the middle of the frame-shaped support 1, the fixed pulley seat 20 is installed on the first beam 10, and the direction-changing pulley seat 40 is installed on the second beam 11. The turning pulley seat 20 is arranged at the upper part of the frame-shaped support 1, so that the fixed pulley seat 20 and the turning pulley seat 40 are arranged in a staggered manner in space, mutual interference between the fixed pulley block 2 and the turning pulley 41 is avoided, the outgoing line position of the steel wire rope 6 is adjusted through the turning pulley 41, and the steel wire rope 6 can be smoothly led out to the winch 7 from the surrounding well structure 5.
Specifically, a first rotating shaft 22 is arranged on a first cross beam 10 of the frame-shaped support 1, the fixed pulley seat 20 is rotatably mounted on the first rotating shaft 22, the first rotating shaft 22 is arranged on the lower side of the first cross beam 10, and the first rotating shaft 22 extends in parallel with the length direction of the first cross beam 10; a fixed pulley shaft 23 is provided on the fixed pulley seat 20, at least two fixed pulleys 21 are mounted on the fixed pulley shaft 23, and a first rotating shaft 22 is arranged perpendicular to the extending direction of the fixed pulley shaft 23. The fixed pulley seat 20 is rotatably mounted on the first rotating shaft 22, so that the fixed pulley block 2 can be adjusted to a balance state in a swinging manner during lifting operation.
Wherein, fixed pulley seat 20 includes horizontal base plate 200, fixes at the last riser 201 of horizontal base plate 200 upside to and fix at the lower riser 202 of horizontal base plate 200 downside, upward be equipped with on the riser 201 with first pivot 22 complex shaft hole, the parallel interval arrangement of lower riser 202 has a plurality ofly, the face of riser 201 is gone up to a plurality of lower risers 202 perpendicular to, and be equipped with on the lower riser 202 with fixed pulley axle 23 complex through-hole. In this embodiment, the upper vertical plate 201 and the lower vertical plate 202 are respectively connected to the horizontal base 200 by welding, the surface of the upper vertical plate 201 is perpendicular to the extending direction of the first rotating shaft 22 for the first rotating shaft 22 to penetrate through the shaft hole, and the surface of the lower vertical plate 202 is perpendicular to the extending direction of the fixed pulley shaft 23 for the fixed pulley shaft 23 to penetrate through the through hole.
A second rotating shaft 42 is arranged on the second beam 11 of the frame-shaped support 1, the direction-changing pulley seat 40 is rotatably arranged on the second rotating shaft 42, a direction-changing pulley shaft 43 is arranged on the direction-changing pulley seat 42, the direction-changing pulley 41 is rotatably arranged on the direction-changing pulley shaft 43, and the second rotating shaft 42 is arranged perpendicular to the extending direction of the direction-changing pulley shaft 43. That is, the second rotating shaft 42 is disposed at the lower side of the second beam 11, and the second rotating shaft 42 extends in parallel to the length direction of the second beam 11, the first rotating shaft 22 is disposed in parallel to the second rotating shaft 42, and the direction-changing pulley holder 40 is rotatably mounted on the second rotating shaft 42, so that the direction-changing pulley 41 can be adjusted to an optimal position by the traction force of the steel wire rope 6 during the lifting operation, and the steel wire rope 6 is prevented from falling off from the direction-changing pulley 41.
In order to obtain the traction acting force of the steel wire rope 6 in real time, the turning pulley shaft 43 is designed to be a pin shaft sensor, specifically, the pin shaft sensor is GH-9 in type, two end portions, close to the pin shaft sensor, of the pin shaft sensor are provided with annular grooves, resistance strain gauges are installed in the annular grooves, two ends of the pin shaft sensor are installed in the turning pulley seat 42, the middle of the pin shaft sensor is subjected to the shearing acting force of the turning pulley 41, the two resistance strain gauges jointly form a Wheatstone bridge, the magnitude of the shearing acting force can be obtained by processing current signals, and then the magnitude of the traction acting force of the steel wire rope 6 can be determined according to the stress condition of the turning pulley.
The lower side of the frame-shaped bracket 1 is provided with a socket ear plate 12, the socket ear plate 12 is rotatably connected with a socket 60, and the socket 60 is fixedly connected with the end part of the steel wire rope 6. The movable pulley group 3 includes a movable pulley shaft 32 and a plurality of movable pulleys 31 attached to the movable pulley shaft 32, and the number of the movable pulleys 31 is one more than the number of the fixed pulleys 21. In the present embodiment, eight movable pulleys 31 are provided, seven fixed pulleys 21 are provided, and since one end of the wire rope 6 is connected to the frame bracket 1 through the socket 30, and the other end of the wire rope 6 is directly connected to the winch 7, the weight of the member to be lifted is shared by the socket lug 12, the fixed pulleys 21 and the winch 7.
According to the specific embodiment of the installation method of the pulley lifting system for the ship, the installation method of the pulley lifting system for the ship comprises the following steps:
the method comprises the following steps: the fixed pulley seat 20 and the turning pulley seat 40 are arranged on the support, specifically, the fixed pulley seat 20 is rotatably arranged on the first cross beam 10, and the turning pulley seat 40 is rotatably arranged on the second cross beam 11;
step two: the fixed pulley block 2 is rotatably arranged on a fixed pulley shaft 23 of a fixed pulley seat 20, and the direction-changing pulley 41 is rotatably arranged on a direction-changing pulley shaft 43 of a direction-changing pulley seat 40;
step three: correspondingly and fixedly installing the connecting structure of the bracket on the surrounding well structure 5, namely fixedly installing the frame-shaped bracket on the surrounding well structure 5 through bolts and nuts;
step four: the traction rope is sequentially wound through the winch 7, the direction-changing pulley 41, the movable pulley block 3 and the fixed pulley block 2, and then the traction rope is connected with the steel wire rope 6;
step five: the winch 7 is started to wind the traction rope and the steel wire rope 6, and the steel wire rope 6 is connected with the winch 7. The outgoing line position of the steel wire rope 6 is adjusted through the direction-changing pulley 41, and the steel wire rope 6 can be smoothly led out to the winch 7 from the surrounding well structure 5.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. A pulley lifting system for a ship is characterized by comprising a support, a winch, a fixed pulley block and a movable pulley block arranged on the lower side of the fixed pulley block, wherein the support is provided with a connecting structure used for being fixedly installed with a surrounding well structure, the support is provided with a fixed pulley seat, and the fixed pulley block is rotatably installed in the fixed pulley seat;
the upper part of the bracket is also provided with a direction-changing pulley seat, a direction-changing pulley is rotatably arranged in the direction-changing pulley seat, the lower part of the movable pulley block is provided with a component connecting structure, and steel wire ropes are wound in the fixed pulley block and the movable pulley block and wound to the upper surface of the direction-changing pulley and connected with the winch;
the support is a frame-shaped support, a first cross beam and a second cross beam are arranged in the middle of the frame-shaped support in parallel at intervals, the fixed pulley seat is rotatably installed on the first cross beam, and the direction-changing pulley seat is rotatably installed on the second cross beam; the lower side of the frame-shaped support is further provided with a socket ear plate, a socket is rotatably connected to the socket ear plate, and the socket is fixedly connected with the end part of the steel wire rope.
2. The marine pulley lifting system according to claim 1, wherein a first rotating shaft is provided on the first beam, the fixed pulley base is rotatably mounted on the first rotating shaft, a fixed pulley shaft is provided on the fixed pulley base, at least two fixed pulleys are mounted on the fixed pulley shaft, and the first rotating shaft is arranged perpendicular to an extending direction of the fixed pulley shaft.
3. The pulley lifting system for the ship of claim 2, wherein the fixed pulley seat comprises a horizontal base plate, an upper vertical plate fixed on the upper side of the horizontal base plate, and a lower vertical plate fixed on the lower side of the horizontal base plate, wherein the upper vertical plate is provided with an axle hole matched with the first rotating shaft, a plurality of lower vertical plates are arranged in parallel at intervals, the plurality of lower vertical plates are perpendicular to the surface of the upper vertical plate, and the lower vertical plates are provided with through holes matched with the fixed pulley axles.
4. The marine pulley lifting system according to claim 2, wherein a second rotating shaft is provided on the second beam, the direction-changing pulley holder is rotatably mounted on the second rotating shaft, a direction-changing pulley shaft is provided on the direction-changing pulley holder, the direction-changing pulley is rotatably mounted on the direction-changing pulley shaft, and the second rotating shaft is arranged perpendicular to an extending direction of the direction-changing pulley shaft.
5. The marine sheave hoist system of claim 4, wherein the diverting sheave shaft is a pin sensor.
6. The marine sheave lifting system of claim 4, wherein the first and second axles are arranged in parallel.
7. The marine pulley lifting system according to claim 1, wherein the movable pulley block comprises a movable pulley shaft, and a plurality of movable pulleys mounted on the movable pulley shaft, the number of the movable pulleys being one more than the number of the fixed pulleys.
8. A method for installing a pulley lifting system for a ship is characterized by comprising the following steps:
the method comprises the following steps: a fixed pulley seat and a turning pulley seat positioned at the upper part of the bracket are arranged on the bracket;
step two: rotatably mounting a fixed pulley block on the fixed pulley seat, and rotatably mounting a direction-changing pulley on the direction-changing pulley seat;
step three: correspondingly and fixedly installing the connecting structure of the bracket on the surrounding well structure;
step four: the traction rope is sequentially wound through a winch, a turning pulley, a movable pulley block and a fixed pulley block, and then the traction rope is connected with a steel wire rope;
step five: and starting the winch to wind the traction rope and the steel wire rope, and connecting the steel wire rope with the winch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310338.2A CN111422772A (en) | 2020-04-17 | 2020-04-17 | Marine pulley lifting system and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010310338.2A CN111422772A (en) | 2020-04-17 | 2020-04-17 | Marine pulley lifting system and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111422772A true CN111422772A (en) | 2020-07-17 |
Family
ID=71558200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010310338.2A Pending CN111422772A (en) | 2020-04-17 | 2020-04-17 | Marine pulley lifting system and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111422772A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3911778A1 (en) * | 1989-04-11 | 1990-10-18 | Hessabi Iradj | Load-lifting cable mechanism - has parallel rope pulley shafts travelling on sides of obtuse-angle triangular guide member |
| CN202542765U (en) * | 2012-03-05 | 2012-11-21 | 徐州重型机械有限公司 | Steel wire rope pulley assembly and crane |
| CN205634719U (en) * | 2016-05-25 | 2016-10-12 | 河南省矿山起重机有限公司 | Hoist and pulley gear thereof |
| CN207419566U (en) * | 2017-10-30 | 2018-05-29 | 中交上航局航道建设有限公司 | It is a kind of to twist the jacking system for inhaling ship |
| CN207524875U (en) * | 2017-11-07 | 2018-06-22 | 秦皇岛天业通联重工科技有限公司 | A kind of 3 points of hoister in large tonnage hangs lifting mechanism and crane |
-
2020
- 2020-04-17 CN CN202010310338.2A patent/CN111422772A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3911778A1 (en) * | 1989-04-11 | 1990-10-18 | Hessabi Iradj | Load-lifting cable mechanism - has parallel rope pulley shafts travelling on sides of obtuse-angle triangular guide member |
| CN202542765U (en) * | 2012-03-05 | 2012-11-21 | 徐州重型机械有限公司 | Steel wire rope pulley assembly and crane |
| CN205634719U (en) * | 2016-05-25 | 2016-10-12 | 河南省矿山起重机有限公司 | Hoist and pulley gear thereof |
| CN207419566U (en) * | 2017-10-30 | 2018-05-29 | 中交上航局航道建设有限公司 | It is a kind of to twist the jacking system for inhaling ship |
| CN207524875U (en) * | 2017-11-07 | 2018-06-22 | 秦皇岛天业通联重工科技有限公司 | A kind of 3 points of hoister in large tonnage hangs lifting mechanism and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2997664C (en) | Wind turbine blade removal and installation system and method | |
| CN100542936C (en) | Hanging bracket for integral hoisting of ship superstructure and hoisting | |
| CN101983894B (en) | Pretension and lay-off method and device of crane jib for ship | |
| CN116119517A (en) | Automatic anti-torsion device for port crane lifting appliance | |
| CN100567129C (en) | A kind of hoisting device for loop wheel machine | |
| CN201261694Y (en) | Large-scale full-turning offshore platform crane | |
| CN210973614U (en) | Marine wind power major diameter single pile upset frock | |
| CN212609107U (en) | Cable wind device of single-blade hoisting machinery of square barge crane unit | |
| CN111422772A (en) | Marine pulley lifting system and installation method thereof | |
| CN203095407U (en) | Multifunctional lifting hook counterweight device | |
| CN102992203A (en) | Simple hoisting device for steel structure bridge installation | |
| CN100352759C (en) | Rise and fall crossbeam type crane for container | |
| WO2007123034A1 (en) | Elevator device | |
| CN211496571U (en) | Self-balancing lifting appliance | |
| CN201494985U (en) | Tension balancing device of traction wire rope | |
| CN210214519U (en) | Compensation chain device for traction type building construction elevator | |
| CN208732418U (en) | A kind of parking systems equilibrant force suspension centre structure | |
| CN112499455A (en) | Adjustable lifting appliance for inclination angle of wind power gear box | |
| CN201099586Y (en) | Crane lifting device | |
| CN112359804A (en) | Hoisting and mounting method for bolt type pile leg | |
| CN110562832A (en) | Compensation chain device for traction type building construction elevator | |
| CN214570032U (en) | Adjustable lifting appliance for inclination angle of wind power gear box | |
| CN216918352U (en) | Large-angle deflection mechanism for large-tonnage hoisting single lifting hook | |
| CN214456179U (en) | Auxiliary hoisting tool for high-voltage sleeve of transformer | |
| CN212245938U (en) | Multi-pulley cantilever crane head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |
|
| RJ01 | Rejection of invention patent application after publication |