CN104310236B - Revolving support formula crane is fixed at harbour - Google Patents
Revolving support formula crane is fixed at harbour Download PDFInfo
- Publication number
- CN104310236B CN104310236B CN201410424179.3A CN201410424179A CN104310236B CN 104310236 B CN104310236 B CN 104310236B CN 201410424179 A CN201410424179 A CN 201410424179A CN 104310236 B CN104310236 B CN 104310236B
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- China
- Prior art keywords
- assembly
- pulley
- steel wire
- wire rope
- fixed
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
Abstract
The present invention relates to portal crane technical field, especially relate to a kind of harbour and fix revolving support formula crane, including door frame assembly, revolving dial, winching barrel, grab bucket and the first steel wire rope, door frame assembly lower hinge has turntable and jib assembly, revolving dial is arranged on below turntable, jib assembly is free end away from one end of door frame assembly, the end of free end is provided with assembly pulley, one end of first steel wire rope is through assembly pulley traction grab bucket, on the free end of jib assembly, the position near assembly pulley is provided with multiple fixed pulley, the arranged direction of fixed pulley extends in the middle part of jib assembly from assembly pulley, first steel wire rope passes sequentially through the assembly pulley on jib assembly and fixed pulley is wrapped on winching barrel.Revolving support formula crane is fixed at a kind of harbour of the present invention, makes original steel wire rope that the friction of other equipment of crane is changed into roll-sliding, reduces the rate of wear of steel wire rope, extends service life of steel wire rope more than one times.
Description
Technical field
The present invention relates to portal crane technical field, especially relate to a kind of harbour and fix revolving support formula crane.
Background technology
Various iron-bearing materials and part iron content stone used by sintering plant are marched into the arena, and rely primarily on Shipping to harbour, then are unloaded into above belt conveyor by portal crane, are transported to each and specify position.
But there are problems in actual use in portal crane:
(1) portal crane is owing to when manufacturing and designing, main other installations and facilities hanging steel wire rope, steel wire rope of grab bucket and crane produce friction, cause equipment component serious wear, and steel wire rope does not reaches expected service life；
(2) in the middle of lifting operation, easily occur that steel wire rope breaks suddenly stock, causes jib boom to fall rapidly, pound freighter or around on auxiliary device, cause a lot of equipment breakdown, human casualty accident to occur；
(3) port loop wheel machine is when running status, every day patrols and examines spot check person all can be had to carry out equipment dynamic point, port is hung does not has door at one layer of ladder landing platform, anyone can be directly entered two layers of ladder landing platform, and exactly go at the ladder rotary cross of engine house and driver's cabin at two layers of ladder landing platform, at this not in the range of pilot's line of vision, during operator, whether invisible ladder crossing enters people, occurs that a lot of ladder squeezes the person's of hurting sb.'s feelings accident.
Above three make product cost improve constantly；Equipment breakdown and human casualty accident repeatedly occur, in terms of economic aspect, fame, brings massive losses to company.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome equipment component serious wear in prior art, steel wire rope does not reaches expected service life；In the middle of lifting operation, easily occur that steel wire rope breaks suddenly stock, causes jib boom to fall rapidly, pound freighter or around on auxiliary device, cause the problem that a lot of equipment breakdown, human casualty accident occur；Port loop wheel machine is when running status, and during operator, whether invisible ladder crossing enters people, occurs that a lot of ladder squeezes the person's of hurting sb.'s feelings accident.The present invention provides a kind of harbour to fix revolving support formula crane, by arranging fixed pulley on jib assembly, and by steel wire rope winding fixed pulley, make original steel wire rope that the friction of jib assembly is changed into roll-sliding, reduce the rate of wear of steel wire rope, extend service life of steel wire rope more than one times.
The technical solution adopted for the present invention to solve the technical problems is: revolving support formula crane is fixed at a kind of harbour, including door frame assembly, revolving dial, winching barrel, grab bucket and the first steel wire rope, door frame assembly lower hinge has turntable and jib assembly, revolving dial is arranged on below turntable, described jib assembly is free end away from one end of door frame assembly, the end of described free end is provided with assembly pulley, described grab bucket is drawn through assembly pulley in one end of first steel wire rope, on the free end of described jib assembly, the position near assembly pulley is provided with multiple fixed pulley, the arranged direction of described fixed pulley extends in the middle part of jib assembly from assembly pulley, described first steel wire rope passes sequentially through the assembly pulley on jib assembly and fixed pulley is wrapped on winching barrel.
Described fixed pulley includes that leading block and supporting pulley, described first steel wire rope change bearing of trend on leading block, keeps bearing of trend on supporting pulley.
Described fixed pulley is 4, and wherein two near free end end are leading block, and two away from free end end is supporting pulley, and described supporting pulley is arranged on above jib assembly, and leading block is arranged on below jib assembly.
The external diameter of described fixed pulley is less than the pulley external diameter of assembly pulley.
In order to be further ensured that the safety of crane, described jib assembly and door frame assembly top are respectively fixed with suspension ring, are connected by the second steel wire rope between said two suspension ring.This ensure that cantilever will not decline suddenly the equipment of pounding or personnel after the first steel wire rope is broken, only can hover in midair.
Air line distance between two suspension ring when the angle of the length of described second steel wire rope≤between described jib assembly and door frame assembly is right angle.This ensure that the effective radius that the lifting of port loop wheel machine and luffing normally work.
In order to no longer allow spot check personnel come to harm, described revolving dial includes two-layer platform and safety ladder, described safety ladder is entered two-layer platform by ground, is provided with a safety protective door, is provided with door limit switch at the crack between a door and its frame of described safety protective door between safety ladder upper end and two-layer platform.Arranging an alarm bell together with door limit switch, the switch of the safety protective door that the switch of alarm bell is passed on door limit switch keeps consistent simultaneously.So can play reminding effect, prevent unexpected generation.
The invention has the beneficial effects as follows: revolving support formula crane is fixed at a kind of harbour of the present invention, by arranging multiple fixed pulley on jib assembly, and by steel wire rope winding fixed pulley, make original steel wire rope that the friction of jib assembly is changed into roll-sliding, reduce the rate of wear of steel wire rope, extend service life of steel wire rope more than one times；Jib assembly is respectively fixed with suspension ring with door frame assembly top; connected by steel wire rope between two suspension ring; if after steel wire rope reaches service life; fracture of wire or disconnected stock phenomenon occur; cantilever is owing to being protected by protective equipment; the most suddenly fall, but hover in the air, effectively terminate jib boom pound equipment or personnel and cause equipment breakdown, personal injury accident.；In terms of economic aspect, fame, add huge gains to company, effectively reduce cost.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation that a kind of harbour of the present invention fixes when the middle jib assembly of revolving support formula crane tilts.
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
Fig. 3 is the structural representation that a kind of harbour of the present invention fixes when the middle jib assembly of revolving support formula crane is in another location.
In figure 1, door frame assembly, 2, winching barrel, 3, grab bucket, 4, the first steel wire rope, 5, turntable, 6, jib assembly, 7, assembly pulley, 8, fixed pulley, 8-1, leading block, 8-2, supporting pulley, 9, suspension ring, the 10, second steel wire rope, 11, two-layer platform, 12, safety ladder, 13, safety protective door, 14, door limit switch, 15, alarm bell, 16, counterweight.
Detailed description of the invention
Below in conjunction with specific embodiment, further the present invention is illustrated, it should be appreciated that quote embodiment and be merely to illustrate the present invention, rather than limit the scope of the present invention.
As shown in Fig. 13, revolving support formula crane is fixed at a kind of harbour of the present invention, including door frame assembly 1, revolving dial, winching barrel 2, grab bucket 3 and the first steel wire rope 4, door frame assembly 1 lower hinge has turntable 5 and jib assembly 6, revolving dial is arranged on below turntable 5, jib assembly 6 is free end away from one end of door frame assembly 1, the end of free end is provided with assembly pulley 7, grab bucket 3 is drawn through assembly pulley 7 in one end of first steel wire rope 4, on the free end of jib assembly 6, the position near assembly pulley 7 is provided with 4 fixed pulleys 8, the arranged direction of fixed pulley 8 extends in the middle part of jib assembly 6 from assembly pulley 7, the external diameter of fixed pulley 8 is less than the pulley external diameter of assembly pulley 7, first steel wire rope 4 passes sequentially through the assembly pulley 7 on jib assembly 6 and fixed pulley 8 is wrapped on winching barrel 2.
Fixed pulley 8 includes leading block 81 and supporting pulley 82, and the first steel wire rope 4 changes bearing of trend on leading block 81, keeps bearing of trend on supporting pulley 82.In 4 fixed pulleys 8, two of close free end end is leading block 81, and two away from free end end is supporting pulley 82, and supporting pulley 82 is arranged on above jib assembly 6, and leading block 81 is arranged on below jib assembly 6.First steel wire rope 4 operationally, due to the effect of 4 fixed pulleys 8, promotes steel wire rope away from jib assembly 6, does not produce friction, effective prolonging service life of steel wire.
Jib assembly 6 and door frame assembly 1 top are respectively fixed with suspension ring 9, are connected by the second steel wire rope 10 between two suspension ring 9.This ensure that cantilever will not decline suddenly the equipment of pounding or personnel after steel wire rope is broken, only can hover in midair.Air line distance between two suspension ring 9 when the angle of the length of the second steel wire rope 10≤between jib assembly 6 and door frame assembly 1 is right angle.This ensure that the effective radius that the lifting of port loop wheel machine and luffing normally work.
In order to no longer allow spot check personnel come to harm, revolving dial includes two-layer platform 11 and safety ladder 12, safety ladder 12 is entered two-layer platform 11 by ground, it is provided with a safety protective door 13 between safety ladder 12 upper end and two-layer platform 11, door limit switch 14 is installed at the crack between a door and its frame of safety protective door 13.Also setting up an alarm bell 15 together with door limit switch 14, the switch of alarm bell 15 keeps consistent with the switch of the safety protective door 13 that door limit switch 14 is passed on.In the present embodiment, door limit switch 14 is in normally off, and after safety protective door 13 is opened by other staff, door limit switch 14 disconnects.Door limit switch 14 carries out automatic linkage with alarm bell 15, driver's cabin and electric equipment, and after door limit switch 14 disconnects, alarm bell 15 the tinkle of bells sounds, and the operation power-off of driver's cabin all operations system is out of service.After other staff climb up safely safety ladder 12, closed safe protective door 13, safety protective door 13 is when closed, door limit switch 14 resets, and circuit recovers closure state, and alarm bell 15 the tinkle of bells releases, carried out combined floodgate power transmission by the driver of driver's cabin, prepare normal operating.
The operation of all plant equipment is all at bridge operation；All electrical equipments are controlled by electrical equipment control cabinet；The action of jib assembly 6 is completed jointly by lifting mechanism, jib lubbing mechanism, rotating mechanism, electrical equipment.
The action of lifting mechanism is completed by motor, reductor, winching barrel the 2, first steel wire rope 4 etc..When lifting mechanism runs, after being carried out combined floodgate power transmission by driver's cabin, motor drives speed reducer drive winching barrel 2, the first steel wire rope 4 on winching barrel 2 is made to carry out folding and unfolding operation, the folding and unfolding of the first steel wire rope 4 runs through the fixed pulley 8 on jib assembly 6 and promotes to grab bucket and 3 carry out up and down or folding and unfolding runs, and completes the action that hoists.
The action of jib lubbing mechanism is completed by motor, reductor, winching barrel the 2, first steel wire rope 4, jib assembly 6 etc..After jib lubbing mechanism is carried out combined floodgate power transmission by driver's cabin, motor drives speed reducer drive winching barrel 2, the first steel wire rope 4 on winching barrel 2 is made to carry out folding and unfolding operation, first steel wire rope 4 other end is fixed on above jib assembly 6, the folding and unfolding of the first steel wire rope 4 runs through the fixed pulley 8 on jib assembly 6 and promotes jib assembly 6 to carry out upper and lower pitching operation, completes luffing action.
The action of rotating mechanism is completed by turntable 5 (motor, reductor, travelling gear, gyration gear ring), revolving dial etc..When rotating mechanism runs, driver's cabin after carrying out combined floodgate power transmission, motor drives speed reducer drive gear, and travelling gear does circumference operation outside gyration gear ring, drives turntable 5 to complete to rotate translation motion.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this invention technological thought.The content that the technical scope of this invention is not limited in description, it is necessary to determine its technical scope according to right.
Claims (5)
- null1. revolving support formula crane is fixed at a harbour，Including door frame assembly (1)、Revolving dial、Winching barrel (2)、Grab bucket (3) and the first steel wire rope (4)，Door frame assembly (1) lower hinge has turntable (5) and jib assembly (6)，Revolving dial is arranged on turntable (5) lower section，Described jib assembly (6) is free end away from one end of door frame assembly (1)，The end of described free end is provided with assembly pulley (7)，Described grab bucket (3) is drawn through assembly pulley (7) in one end of first steel wire rope (4)，It is characterized in that: on the free end of described jib assembly (6), the position near assembly pulley (7) is provided with multiple fixed pulley (8)，The arranged direction of described fixed pulley (8) extends to jib assembly (6) middle part from assembly pulley (7)，Described first steel wire rope (4) passes sequentially through the assembly pulley (7) on jib assembly (6) and fixed pulley (8) is wrapped on winching barrel (2)；Described fixed pulley (8) includes that leading block (8-1) and supporting pulley (8-2), described first steel wire rope (4) change bearing of trend on leading block (8-1), keep bearing of trend on supporting pulley (8-2)；Described fixed pulley (8) is 4, wherein two near free end end are leading block (8-1), two away from free end end is supporting pulley (8-2), described supporting pulley (8-2) is arranged on jib assembly (6) top, and leading block (8-1) is arranged in jib assembly (6) lower section.
- 2. revolving support formula crane is fixed at harbour as claimed in claim 1, it is characterised in that: the external diameter of described fixed pulley (8) is less than the pulley external diameter of assembly pulley (7).
- 3. revolving support formula crane is fixed at harbour as claimed in claim 1, it is characterized in that: described jib assembly (6) and door frame assembly (1) top are respectively fixed with a suspension ring (9), connected by the second steel wire rope (10) between said two suspension ring (9).
- 4. revolving support formula crane is fixed at harbour as claimed in claim 3, it is characterised in that: air line distance between two suspension ring (9) when the angle of the length of described second steel wire rope (10)≤between described jib assembly (6) and door frame assembly (1) is right angle.
- 5. revolving support formula crane is fixed at harbour as claimed in claim 1, it is characterized in that: described revolving dial includes two-layer platform (11) and safety ladder (12), described safety ladder (12) is entered two-layer platform (11) by ground, it is provided with a safety protective door (13) between safety ladder (12) upper end and two-layer platform (11), door limit switch (14) is installed at the crack between a door and its frame of described safety protective door (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424179.3A CN104310236B (en) | 2014-08-26 | 2014-08-26 | Revolving support formula crane is fixed at harbour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424179.3A CN104310236B (en) | 2014-08-26 | 2014-08-26 | Revolving support formula crane is fixed at harbour |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104310236A CN104310236A (en) | 2015-01-28 |
| CN104310236B true CN104310236B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410424179.3A Active CN104310236B (en) | 2014-08-26 | 2014-08-26 | Revolving support formula crane is fixed at harbour |
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| CN (1) | CN104310236B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565165B (en) * | 2016-03-04 | 2016-09-14 | 江苏聚业机械装备股份有限公司 | Fully-automatic intelligent harbor crane grabs coal system and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574964A (en) * | 1983-06-29 | 1986-03-11 | Fmc Corporation | Breakaway bail |
| JP2003095584A (en) * | 2001-09-26 | 2003-04-03 | Hitachi Constr Mach Co Ltd | Safety device of tower crane |
| CN202296894U (en) * | 2011-09-20 | 2012-07-04 | 南京港（集团）有限公司 | Single-boom gantry crane |
| CN202440246U (en) * | 2012-01-09 | 2012-09-19 | 佛山市南海高达建筑机械有限公司 | Novel flexible trolley-jib single-boom multi-purpose fixed crane |
| CN103663205B (en) * | 2013-11-22 | 2015-09-16 | 中联重科股份有限公司 | Arm tower crane |
| CN103613010A (en) * | 2013-11-22 | 2014-03-05 | 中联重科股份有限公司 | Luffing jib tower crane |
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2014
- 2014-08-26 CN CN201410424179.3A patent/CN104310236B/en active Active
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| CN104310236A (en) | 2015-01-28 |
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