CN108821137B - Wind generating set hoist and mount tower crane device of stable support - Google Patents
Wind generating set hoist and mount tower crane device of stable support Download PDFInfo
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- CN108821137B CN108821137B CN201810735967.2A CN201810735967A CN108821137B CN 108821137 B CN108821137 B CN 108821137B CN 201810735967 A CN201810735967 A CN 201810735967A CN 108821137 B CN108821137 B CN 108821137B
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- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- 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
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- 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
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to a hoisting device for mounting a large-scale wind generating set. A wind generating set hoisting tower crane device capable of being stably supported comprises a swing mechanism, a hoisting mechanism, a main crane boom and a luffing jib, wherein the bottom of the main crane boom is hinged to the front end of the swing mechanism, the main crane boom is composed of four sections of telescopic sleeves, the bottom of a first sleeve is hinged to the swing mechanism, a first hook mounting seat is arranged at the top of a fourth sleeve, a first connecting truss is arranged above the first hook mounting seat, and an obtuse-angle triangular truss is arranged above the first connecting truss; the luffing jib comprises a first main truss and a second main truss, wherein a second hook mounting seat is arranged at the top of the first main truss, and a second hook is arranged on the second hook mounting seat; the second main truss is fixedly arranged at the top of the second lifting hook mounting seat, a third lifting hook mounting seat is fixedly arranged at the top of the second main truss, and a third lifting hook is arranged on the third lifting hook mounting seat. The device is stable, and solves the problem of hoisting a large-scale wind driven generator.
Description
Technical Field
The invention relates to a hoisting device for mounting a large-scale wind generating set.
Background
Wind power generation refers to converting kinetic energy of wind into electric energy. Wind is an energy source without public nuisance, the wind power generation is very environment-friendly, and the generated electric energy is very huge, so that more and more countries pay more attention to the wind power generation. Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. The wind energy is huge, the global wind energy is about 2.74 multiplied by 10^9MW, wherein the available wind energy is 2 multiplied by 10^7MW, which is 10 times larger than the total amount of water energy which can be developed and utilized on the earth.
China is rich in wind energy resources, and the wind energy storage capacity capable of being developed and utilized is about 10 hundred million kW, wherein the wind energy storage capacity on the land of the Chinese wind farm is about 2.53 hundred million kW (data calculation of 10m height above the ground), and the wind energy storage capacity capable of being developed and utilized on the sea is about 7.5 hundred million kW, and the total is 10 hundred million kW. And the national electric power installation at the end of 2003 is about 5.67 hundred million kW.
Wind is one of pollution-free energy sources. Moreover, it is inexhaustible. The wind power generation device is very suitable for and can be used for generating electricity by utilizing wind power according to local conditions in coastal islands, grassland pasturing areas, mountain areas and plateau areas with water shortage, fuel shortage and inconvenient traffic. Offshore wind power is an important field of renewable energy development, is an important force for promoting wind power technology progress and industry upgrading, and is an important measure for promoting energy structure adjustment. China is rich in offshore wind energy resources, offshore wind power project construction is accelerated, and the method has important significance for promoting treatment of atmospheric haze, adjustment of energy structures and conversion of economic development modes in coastal areas.
Along with the research and development of large-scale wind driven generators, the weight of a machine body is continuously increased, and a tower body is higher and higher, so that the research and development, production, maintenance and maintenance of the large-scale wind driven generator are greatly restricted if the difficult problem of hoisting is not solved. At present, a wind generating set is hoisted to the top of a wind tower to be installed and connected to complete installation and construction, the whole construction period is long, a large-scale special floating crane is needed, and the construction risk is high.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a wind generating set hoisting tower crane device with stable support, which is good in stability and solves the hoisting problem of a large wind driven generator.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wind generating set hoisting tower crane device capable of being stably supported comprises a swing mechanism, a hoisting mechanism, a main crane boom and an amplitude-variable boom, wherein the bottom of the main crane boom is hinged to the front end of the swing mechanism, the main crane boom is composed of four sections of telescopic sleeves, a first sleeve is arranged on the outermost side, a fourth sleeve is arranged on the innermost side, the bottom of the first sleeve is hinged to the swing mechanism, a first hook mounting seat is arranged at the top of the fourth sleeve, a first hook is arranged on the first hook mounting seat, a first connecting truss is arranged above the first hook mounting seat, an obtuse triangular truss is arranged above the first connecting truss, and a first acute angle part of the obtuse triangular truss faces upwards; the luffing jib comprises a first main truss and a second main truss, wherein a second hook mounting seat is arranged at the top of the first main truss, and a second hook is arranged on the second hook mounting seat; the second main truss is fixedly arranged at the top of the second hook mounting seat, a third hook mounting seat is fixedly arranged at the top of the second main truss, and a third hook is arranged on the third hook mounting seat; the hoisting mechanism is arranged on the swing mechanism and comprises a first load winding drum, a second load winding drum and a third load winding drum, and the first hook is connected with the first load winding drum through a first steel cable; the second lifting hook is connected with the second load drum through a second steel cable, and the third lifting hook is connected with the third load drum through a third steel cable; the main crane boom is provided with a stable supporting device, the stable supporting device comprises a tensioning mechanism supporting seat, two lower tensioning arms and two upper tensioning arms, the inner side end of the tensioning mechanism supporting seat is hinged to the top of a first sleeve, a fifth oil cylinder is arranged between the first sleeve on the lower portion of the tensioning mechanism supporting seat and the outer side end of the tensioning mechanism supporting seat, the two lower tensioning arms are opened according to a splayed shape, the inner side ends of the two lower tensioning arms are respectively hinged to one side of the tensioning mechanism supporting seat, and a fourth oil cylinder is arranged between each lower tensioning arm and the tensioning mechanism supporting seat; a first steel cable connector is arranged at the outer side end of the lower tensioning arm, a second steel cable connector is arranged at the bottom of the first sleeve, and the first steel cable connector and the second steel cable connector are connected through a fifth steel cable; the two upper tensioning arms are also opened according to the splayed shape, the inner side ends of the two upper tensioning arms are respectively hinged to the middle of the first connecting truss, the upper parts of the outer side ends of the upper tensioning arms are hinged to first pull rods, the upper ends of the first pull rods are hinged to the top of the first connecting truss, the lower parts of the outer side ends of the upper tensioning arms are hinged to second pull rods, first pulleys are arranged at the bottoms of the second pull rods, second pulley blocks are arranged at the outer side ends of the two lower tensioning arms, and the first pulleys are connected with the second pulley blocks through sixth steel cables.
As a further improvement, the bottom of the first main truss is provided with an acute angle triangular truss, and the top corner of the acute angle triangular truss is hinged with the upward first acute angle part of the obtuse angle triangular truss.
As a further improvement, the variable amplitude suspension arm further comprises a variable amplitude driving device, wherein the variable amplitude driving device comprises a first variable amplitude support, a second variable amplitude support, a first variable amplitude pull rod, a second variable amplitude pull rod and a third variable amplitude pull rod; the hoisting mechanism comprises a hoisting mechanism, a first variable amplitude support and a second variable amplitude support, wherein the inner side end of the first variable amplitude support is hinged to an upward first acute angle part of an obtuse angle triangular truss, the bottom of the first variable amplitude pull rod is hinged to the outer side end of the first variable amplitude support, the top of the first variable amplitude pull rod is hinged to a third lifting hook mounting seat, the inner side end of the second variable amplitude support is hinged to a second acute angle part, the upper end of the second variable amplitude pull rod is hinged to the outer side end of the first variable amplitude support, the lower end of the second variable amplitude pull rod is hinged to the outer side end of the second variable amplitude support, the upper end of the third variable amplitude pull rod is hinged to the outer side end of the second variable amplitude support, a pulley mechanism is hinged to the lower end of the third variable amplitude pull rod, the hoisting mechanism further comprises a variable amplitude winding drum.
As a further improvement, the first amplitude variation support comprises a ladder frame structure, a fourth pulley support and a fourth pulley; the first amplitude-variable support main body structure is a ladder frame structure, the fourth pulley support is arranged on a third crosspiece and a fourth crosspiece from the free end of the first amplitude-variable support, the fourth pulley is arranged on the fourth pulley support through a revolute pair, a second steel cable wound on a second load drum passes through a gap of the fourth crosspiece of the second amplitude-variable support to be in contact with the fourth pulley, and the fourth pulley changes the running direction of the second steel cable so that the second steel cable is connected with the second hook; and the third steel cable wound on the third load drum passes through a third crosspiece gap of the second amplitude variation bracket to be in contact with the fourth pulley, and the fourth pulley changes the running direction of the third steel cable, so that the third steel cable is connected with the third lifting hook.
As a further improvement, a fan blade carrier is arranged on the third lifting hook.
As a further improvement, the fan blade carrier comprises a first belt sling, a first bolt, a second bolt, a third bolt, a fourth bolt, a fifth bolt, a first lifting lug, a second lifting lug, a third lifting lug, a chain plate, a second belt sling, a suspension rod, a fan blade supporting plate and a T-shaped frame;
the right end of the first belt sling is provided with a fixed point, the left end of the first belt sling is provided with two fixed points, the middle part of the first belt sling is provided with a bifurcation point on the left side, the bifurcation structure can be clamped into two hook grooves of a third lifting hook, and the bifurcation point of the bifurcation structure is contacted with a hook arm of the third lifting hook; the upper surface and the lower surface of one end of the T-shaped frame cross beam are provided with a fixed mounting point, the other end of the T-shaped frame cross beam is fixed with the middle part of the longitudinal beam, and the upper surface and the lower surface of two ends of the longitudinal beam are respectively provided with a fixed point; the three first lifting lugs are fixed on the upper surfaces of the T-shaped frame cross beam and the longitudinal beam, and the first bolt passes through the fixing round hole of the first lifting lug and the mounting hole of the fixing end of the first belt sling to connect the T-shaped frame and the first belt sling; the T-shaped frame and the first belt sling jointly form a stable tetrahedron structure in space; three second lifting lugs are fixed on the lower surfaces of the T-shaped frame cross beam and the longitudinal beam, and the opening directions of the three second lifting lugs are parallel to the T-shaped frame longitudinal beam; mounting holes are formed in the two ends of each hanging rod, the two hanging rods are fixed on the second lifting lugs through bolts, the two hanging rods are located below the longitudinal beams of the T-shaped frame, the upper ends of the two chain plates are mounted on the second lifting lugs on the lower surface of the cross beam of the T-shaped frame through fourth bolts, the second belt sling is mounted at the lower ends of the chain plates by bypassing the fifth bolts, and the second belt sling is soft; the third lifting lugs are arranged at two ends of the upper surface of the fan blade supporting plate, and the fan blade supporting plate is arranged at the lower end of the suspension rod through the third lifting lugs and a third bolt on the fan blade supporting plate; the opening direction of the third lifting lug is parallel to the T-shaped frame longitudinal beam, the fan blade supporting plate and the T-shaped frame longitudinal beam are equal in length and width, and the fan blade supporting plate, the suspension rod and the T-shaped frame longitudinal beam form a planar quadrilateral structure.
As a further improvement, the second pulley block comprises a second pulley, a third pulley, a roller frame and a second pulley block shell; the second pulley block shell is fixedly arranged at the outer side end of the lower tensioning arm; the second pulley is arranged on the second pulley block shell through a revolute pair and rotates to adjust the length of the fifth steel cable; the third pulley is arranged on the shell of the second pulley block shell, and the third pulley is fixed during working; one end of a fifth steel cable is wound on the third pulley, penetrates through the first pulley and then is wound on the second pulley at the other end; when the main crane boom extends, the sixth steel cable extends to enable the second pulley to rotate, and when the main crane boom extends to reach a specified height, the second pulley stops rotating and tightens the sixth steel cable to achieve the purpose of tightening; the cylinder passes through the cylinder frame to be installed at the upper surface of second assembly pulley shell, and the cylinder is located the both sides of sixth steel cable, and at the flexible in-process of sixth steel cable, the cylinder is used for protecting sixth steel cable, avoids sixth steel cable and second assembly pulley shell frictional contact.
As a further improvement, the third hook mounting seat comprises a goose head arm truss, a fifth guide pulley, a second guide pulley block and pulley side plates, the pulley side plates are mounted on two sides of the top end of the goose head arm, and upper pulleys of the fifth guide pulley and the second guide pulley block are mounted on the pulley side plates; the lower pulley of the second guide pulley block is arranged on the third hook; and a third steel cable is wound on the fifth guide pulley and the second guide pulley block, and the third steel cable is wound and released in the rotation process of the third load winding drum, so that the lifting of the third lifting hook is driven.
By adopting the technical scheme, the main crane boom is provided with the stable supporting device, so that the technical problem of poor stability of the luffing jib arranged on the main crane boom is solved, the device is good in stability, and the problem of difficult hoisting of a large-scale wind driven generator is solved.
Drawings
FIG. 1 is a side view of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a chassis for mounting a wind turbine according to an embodiment of the present invention.
FIG. 3 is a partial schematic view illustrating an installation of a slewing gear of a wind turbine according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a stable supporting device according to an embodiment of the present invention.
Fig. 5 is a partial anatomical schematic view of a pulley block structure according to an embodiment of the invention.
Fig. 6 is a partial schematic view of a luffing boom mounting structure according to an embodiment of the present invention.
Fig. 7 is a schematic view of a luffing support of a luffing boom according to an embodiment of the invention.
Fig. 8 is a partial schematic view of the installation of the upper pulley of the gooseneck boom according to the embodiment of the present invention.
Fig. 9 is an exploded schematic view of a fan blade carrier according to an embodiment of the present invention.
Fig. 10 is a use state diagram of a hoisting fan blade according to an embodiment of the present invention.
Detailed Description
The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the hoisting device for mounting a large wind generating set comprises a chassis 1, a swing mechanism 2, a balance weight 3, a main crane boom 5, a hoisting mechanism 4, a luffing jib 6, a second hook 60, a third hook 70, a fan blade carrier 8 and a stable support device 9. The heavy truck is characterized in that the chassis 1 is fixedly connected with a heavy truck, the swing mechanism 2 is arranged on the chassis 1, the bottom of the main crane boom 5 is hinged to the front end of the swing mechanism 2, a main lifting oil cylinder 51 is arranged between the main crane boom 5 and the swing mechanism 2 and connected with the main lifting oil cylinder, and the balance weight 3 is fixedly arranged at the rear end of the swing mechanism 2. The main crane boom 5 is composed of four telescopic sleeves, a first sleeve 51 is arranged on the outermost side, a fourth sleeve 54 is arranged on the innermost side, the bottom of the first sleeve 51 is hinged to the slewing mechanism 2, a first hook mounting seat 55 is arranged at the top of the fourth sleeve 54, and a first hook 50 is arranged on the first hook mounting seat 55. The chassis 1 is arranged on a heavy truck, and the area where the wind driven generator is usually arranged is far away, so that the heavy truck can effectively solve the transportation problem; the slewing mechanism 2 is used for enabling the main body structure to rotate around a slewing central axis, and when the chassis 1 is fixed, the slewing mechanism 2 plays a role in loading and expanding a working range; the balancing weight 3 is used for balancing weight.
As shown in fig. 3, the swing mechanism 2 shown includes a lower support base 21, an upper support base 22, and a cockpit 23. A lower supporting seat 21 of the swing mechanism 2 is fixedly arranged on the frame 19; the upper supporting seat 22 is installed above the lower supporting seat 21 through a revolute pair, and a through groove is formed in the upper supporting seat 22. The bottom end of the first sleeve 51 is connected to the upper supporting seat 22 through a hinge, the cylinder bodies of the third oil cylinders 51 are mounted on two sides of the head of the upper supporting seat 22 through hinges, the tail ends of the piston rods of the third oil cylinders 51 are connected with the main lifting arm 5 through hinges, and the third oil cylinders 51 push the first sleeve 51 to rotate around the hinge mounting axis through the extension and contraction of the piston rods. The convex platform is symmetrically arranged on two sides of the tail of the upper supporting seat 22, the balancing weight device 3 is installed on the convex platform, and the balance of the equipment under different load operations can be kept by increasing or reducing the counter weight on the balancing weight device 3. The cockpit 23 is hinged on the side edge of the upper supporting seat 22 and swings to a position forming a certain angle with the longitudinal axis of the frame 19 during working, so that the lifting state can be observed conveniently; when not in working state, the frame can be fixed on one side of the frame 19 in parallel for convenient transportation.
As shown in fig. 2, the chassis 1 includes a main support beam 11, a secondary support beam 12, a first cylinder 13, a support leg 14, a second cylinder 15, a second cylinder support base 16, a support leg lifting lug 17, a support plate 18 and a frame 19. Four support leg main beams 11 are arranged, the support leg main beams 11 are respectively hinged to two sides of a lower support base 21 of the slewing mechanism 2, the lower support base 21 below the four support leg main beams 11 is arranged as a slewing center, a working load is directly transmitted to the ground through the support leg main beams 11 without passing through a frame 19, the frame 19 is protected from being damaged, and the sections of the tail ends of the support leg main beams 11 are quadrilateral sections; the main body section of the auxiliary supporting leg beam 12 is a quadrilateral section, the auxiliary supporting leg beam 12 is arranged inside the main supporting leg beam 11 through a moving pair, and the auxiliary supporting leg beam 12 can stretch along the beam side of the main supporting leg beam 11 to expand the supporting area and improve the stability in the working process; the first oil cylinder 13 is arranged at the tail end of the support leg auxiliary beam 12, the support leg 14 is arranged at the tail end of a piston rod of the first oil cylinder 13, when the support leg device works, the first oil cylinder 13 stretches, the support leg 14 is in contact with the support flat plate 18, and load is transmitted to the ground through the support flat plate 18; landing leg lug 17 is installed at the medial surface of landing leg girder 11, and second hydro-cylinder supporting seat 16 fixed mounting has the fixed point on frame 19, and the design in second hydro-cylinder supporting seat 16 both sides has the fixed point, and the cylinder body of second hydro-cylinder 15 articulates on the fixed point of second hydro-cylinder supporting seat 16, and the piston rod end of second hydro-cylinder 15 articulates on landing leg lug 17, and supporting seat 21 is gyration for centre of gyration below the flexible drive landing leg girder 11 of second hydro-cylinder 15. During operation, the main beam 11 of the support leg can swing to a position forming a certain angle with the longitudinal axis of the frame 19 under the action of the second oil cylinder 15, and can be fixed on two sides of the frame 19 in parallel in a non-working state so as to reduce the space occupied by the chassis 1.
As shown in fig. 3, the hoisting mechanism 4 is disposed on the slewing mechanism 2, the hoisting mechanism 4 includes a first load drum 41, a second load drum 42, a third load drum 43 and a luffing drum 44, and the first hook 50 is connected to the first load drum 41 through a first cable 101. The first load winding drum 41 and the second load winding drum 42 are installed in the through groove of the upper support seat 22, the winch side plate 45 is fixed on two sides of the through groove of the upper support seat 22, and the third load winding drum 43 and the variable amplitude winding drum 44 are installed inside the winch side plate 45.
As shown in fig. 1, the luffing jib 6 includes an acute angle triangular truss 66, a first main truss 67, a second main truss 76 and a luffing driving device, the first connecting truss 56 is disposed above the first hook mounting seat 55, the obtuse angle triangular truss 57 is disposed above the first connecting truss 56, a first acute angle portion of the obtuse angle triangular truss 57 faces upward, a vertex portion of the acute angle triangular truss 66 and the upward first acute angle portion of the obtuse angle triangular truss 57 are hinged to each other, the first main truss 67 is fixedly disposed on the upper portion of the acute angle triangular truss 66, a second hook mounting seat 65 is disposed on the top of the first main truss 67, the second hook 60 is disposed on the second hook mounting seat 65, and the second hook 60 is connected to the second load drum 42 through a second steel cable 102. The second main truss 76 is fixedly arranged at the top of the second hook mounting seat 65, the top of the second main truss 76 is fixedly provided with a third hook mounting seat 75, the third hook 70 is fixedly arranged on the third hook mounting seat 75, the third hook 70 is connected with the third load drum 43 through a third steel cable 103, and the fan blade carrier 8 is connected with the third hook 70.
As shown in fig. 3, 6 and 7, the amplitude drive device comprises a first amplitude support 61, a second amplitude support 62, a first amplitude pull rod 63, a second amplitude pull rod 68 and a third amplitude pull rod 64. The inner side end of the first amplitude variation support 61 is hinged to a first acute angle part facing upwards of the obtuse angle triangular truss 57, the bottom of the first amplitude variation pull rod 63 is hinged to the outer side end of the first amplitude variation support 61, the top of the first amplitude variation pull rod 63 is hinged to the third hook mounting seat 75, the inner side end of the second amplitude variation support 62 is hinged to a second acute angle part, the upper end of the second amplitude variation pull rod 68 is hinged to the outer side end of the first amplitude variation support 61, the lower end of the second amplitude variation pull rod 68 is hinged to the outer side end of the second amplitude variation support 62, the upper end of the third amplitude variation pull rod 64 is hinged to the outer side end of the second amplitude variation support 62, the lower end of the third amplitude variation pull rod 64 is hinged to a pulley mechanism 69, and the pulley mechanism 69 is connected with the amplitude variation winding drum 44 through a fourth steel cable 104.
When the luffing jib 6 is in an initial state, the luffing jib is arranged above the frame 19 and below the main jib 5 in parallel; the amplitude variation suspension arm 6 rotates along with the main crane boom 5, when the main crane boom 5 rotates until the main crane boom is close to a vertical state, the top end of the amplitude variation suspension arm 6 is arranged at the lower part, and the bottom end of the amplitude variation suspension arm 6 is arranged at the upper part along with the top end of the main crane boom; the amplitude-variable suspension arm 6 is formed by connecting a plurality of sections of truss structures, and the length of the amplitude-variable suspension arm 6 can be increased by additionally installing more truss structures; the amplitude variation drum 44 rotates to release and release the fourth steel cable 104, and drives the amplitude variation suspension arm 6 to rotate relative to the main suspension arm 5 until the vertical state is approached; waiting for subsequent work.
As shown in fig. 6 and 7, the first luffing support 61 includes a ladder structure 611, a fourth pulley support 612, and a fourth pulley 613. The main structure of the first amplitude bracket 61 is a ladder frame structure 611, the fourth pulley bracket 612 is arranged on the third and fourth crosspieces from the free end of the first amplitude bracket 61, the fourth pulley 613 is arranged on the fourth pulley bracket 612 through a revolute pair, the second steel cable 102 wound on the second load drum 42 passes through the fourth crosspiece gap of the second amplitude bracket 62 to be in contact with the fourth pulley 613, and the fourth pulley 613 changes the running direction of the second steel cable, so that the second steel cable is connected with the second hook 60. The third wire 103 wound around the third load drum 43 passes through the third gap of the rung of the second luffing support 62 and contacts the fourth pulley 613, and the fourth pulley 613 changes the direction of travel of the third wire 103, so that the third wire 103 is connected to the third hook 70.
As shown in fig. 4, the stable supporting device includes a supporting seat 98 for the tensioning mechanism, two lower tensioning arms 91 and two upper tensioning arms 92, the inner side end of the supporting seat 98 for the tensioning mechanism is hinged to the top of the first sleeve 51, a fifth oil cylinder 99 is disposed between the first sleeve 51 below the supporting seat 98 for the tensioning mechanism and the outer side end of the supporting seat 98 for the tensioning mechanism, and the fifth oil cylinder 99 stretches and retracts to drive the supporting seat 98 for the tensioning mechanism to rotate along the fixed rotation shaft for retracting and releasing the stable supporting device. The two lower tensioning arms 91 are unfolded according to a splayed shape, the inner side ends of the two lower tensioning arms 91 are respectively hinged to one side of the tensioning mechanism supporting seat 98, a fourth oil cylinder 97 is respectively arranged between each lower tensioning arm 91 and the tensioning mechanism supporting seat 98, the fourth oil cylinder 97 works to unfold the lower tensioning arms 91 into the splayed shape until the angle between the two lower tensioning arms 91 is the same as the angle between the two fixed upper tensioning arms 92, and the splayed lower tensioning arms are used for stress optimization of the tensioning mechanism 9. The outside end of lower tensioning arm 91 be provided with first steel cable connector to bottom at first sleeve 51 is provided with the second steel cable connector, first steel cable connector is connected through fifth steel cable 105 with the second steel cable connector. The two upper tensioning arms 92 are also opened according to a splayed shape, the middle part of the first connecting truss 56 is provided with a tensioning arm mounting seat 94, hinge point hole sites at two sides of the tensioning arm mounting seat 94 are designed to form a certain angle, the inner side ends of the two upper tensioning arms 92 are respectively hinged on the tensioning arm mounting seat 94, a certain angle is formed between the two upper tensioning arms 92, the stress of the main cargo boom 5 is optimized, and the working stability of the main cargo boom 5 is improved; the upper tensioning arms 92 are welded with reinforcing pieces with break angles, and the design of the reinforcing pieces with the break angles is convenient for the upper tensioning arms 92 to be stored while the structure of the upper tensioning arms 92 is reinforced, so that the reinforcing pieces are prevented from interfering with the rod pieces of the truss structure of the first connecting truss 56 in the process of storing the crane boom; the tail end of the first pull rod 93 is hinged to the truss structure at the top of the first connecting truss 56, the front end of the first pull rod is hinged to the outer side end of the upper tensioning arm 92 and used for supporting the upper tensioning arm 92, the middle of the first pull rod 93 is provided with a hinged structure, the first pull rod 93 is folded in half when the crane boom is stored, the storage of the upper tensioning arm 92 is facilitated, and the work such as disassembly is avoided. A second pull rod 96 is hinged to the lower portion of the outer side end of the upper tensioning arm 92, a first pulley 90 is arranged at the bottom of the second pull rod 96, a second pulley block 95 is arranged at the outer side end of each of the two lower tensioning arms 91, and the first pulley 90 is connected with the second pulley block 95 through a sixth steel cable 106.
As shown in fig. 5, the second pulley assembly 95 includes a second pulley 951, a third pulley 952, a roller 953, a roller frame 954 and a second pulley assembly housing 955. A second pulley block housing 955 is fixedly mounted to the outboard end of the lower tensioning arm 91. A second pulley 951 is mounted on the second block housing 955 via a revolute pair, the second pulley 951 being rotatable to adjust the length of the fifth cable 105. A third pulley 952 is mounted on the housing of the second block housing 955, which third pulley 952 is fixed during operation. One end of the fifth wire rope e is wound around the third pulley 952, and after passing through the first pulley 90, the other end thereof is wound around the second pulley 951. When the main boom 5 is extended, the sixth wire rope 106 is extended to rotate the second pulley 951, and when the main boom 5 is extended to a specified height, the second pulley 951 stops rotating and the sixth wire rope 106 is tightened to achieve the tensioning purpose. The roller 953 is installed on the upper surface of the second block housing 955 through the roller frame 954, the roller 953 is located on both sides of the sixth wire rope 106, and the roller 953 is used to protect the sixth wire rope 106 during the expansion and contraction of the sixth wire rope to prevent the sixth wire rope 106 from being in frictional contact with the second block housing 955.
In the working process, the fifth oil cylinder 99 works to drive the lower tensioning arm 91 to rotate along the fixed rotating shaft until the fifth steel cable 105 is tightened; the fourth oil cylinder 97 works to unfold the lower tensioning arms 91 into a splayed shape until the angle between the two lower tensioning arms 91 is the same as the angle between the two fixed upper tensioning arms 92; when the main boom 5 is extended to a predetermined height, the second pulley 951 stops rotating and the sixth wire rope 106 is tightened.
As shown in fig. 8, the third hook mounting base 75 includes a goose head arm truss 71, a fifth guide pulley 72, a second guide pulley group 73 and a pulley side plate 74, the pulley side plate 74 is mounted on both sides of the top end of the goose head arm 7, and the upper pulleys of the fifth guide pulley 72 and the second guide pulley group 73 are mounted on the pulley side plate 74. The lower pulley of the second guide pulley block 73 is mounted on the third hook 70. The third steel cable 103 is wound on the fifth guide pulley 72 and the second guide pulley block 73, and the third steel cable 103 is stored in the rotation process of the third load drum 43, so that the third hook 70 is driven to lift, and the fan blade hoisting task is completed.
As shown in fig. 9, the blade carrier 8 is installed below the third hook 70, and the blade carrier 8 includes a first sling 81 with belt type, a first bolt 821, a second bolt 822, a third bolt 823, a fourth bolt 824, a fifth bolt 825, a first lifting lug 831, a second lifting lug 832, a third lifting lug 833, a link plate 85, a second sling 86 with belt type, a suspension rod 87, a blade support plate 88 and a T-shaped frame 89. First area class hoist cable 81 right-hand member is equipped with a fixed point, the left end is equipped with two fixed points, first area class hoist cable 81 middle part is equipped with the bifurcation point to the left side, this bifurcation structure can block into two hook grooves of third lifting hook 70, bifurcation structure's bifurcation point contacts with the hook arm of third lifting hook 70, the bifurcation structure design of first area class hoist cable 81, can effectively avoid the hoist to appear the phenomenon of sliding between hoist cable and the lifting hook in the course of the work, the bifurcation point design is in the middle part and leans on the left position, be used for the anomalous gravity of balanced fan blade distribution. The upper surface and the lower surface of one end of a cross beam of the T-shaped frame 89 are provided with a fixed mounting point, the other end of the cross beam is fixed with the middle part of the longitudinal beam, and the upper surface and the lower surface of two ends of the longitudinal beam are respectively provided with a fixed point; the three first lifting lugs 831 are fixed on the upper surfaces of the cross beam and the longitudinal beam of the T-shaped frame 89, and the first bolts 821 pass through fixing round holes of the first lifting lugs 831 and mounting holes of the fixing ends of the first belt-type suspension ropes 81 to connect the T-shaped frame 89 and the first belt-type suspension ropes 81; the T-shaped frame 89 and the first belt sling 81 jointly form a stable tetrahedron structure in space, and the structure is designed to keep the fan blade stable in the hoisting and mounting processes; three second lifting lugs 832 are fixed on the lower surfaces of the cross beams and the longitudinal beams of the T-shaped frame 89, and the opening directions of the three second lifting lugs 832 are parallel to the longitudinal beams of the T-shaped frame 89; mounting holes are designed at two ends of the hanging rods 87, the two hanging rods 87 are fixed on the second lifting lugs 832 through bolts 82, the two hanging rods 87 are positioned below longitudinal beams of the T-shaped frame 89, the upper ends of the two chain plates 85 are mounted on the second lifting lugs 832 on the lower surface of a cross beam of the T-shaped frame 89 through fourth bolts 824, second belt slings 86 are mounted at the lower ends of the chain plates 85 by bypassing fifth bolts 825, the second belt slings 86 are soft in material, the shape of the second belt slings 86 can be changed according to the irregular shape of the fan blade, the second belt slings 86 can be attached to the shell of the fan blade, fixing and supporting effects are achieved for the fan blade, and rotation and movement of the fan blade in the lifting and mounting processes are reduced; the third lifting lugs 833 are two, the third lifting lugs 833 are mounted at two ends of the upper surface of the fan blade supporting plate 88, and the fan blade supporting plate 88 is mounted at the lower end of the suspension rod 87 through the third lifting lugs 833 and a third bolt 823 thereon; the opening direction of the third lifting lug 833 is parallel to the longitudinal beam of the T-shaped frame 89, the blade support plate 88 has the same length and the same width as the longitudinal beam of the T-shaped frame 89, the blade support plate 88, the suspension rod 87 and the longitudinal beam of the T-shaped frame 89 jointly form a planar quadrilateral structure, the planar quadrilateral structure can only deform on the plane where the blade support plate 88, the suspension rod 87 and the longitudinal beam of the T-shaped frame 89 are located, and the planar quadrilateral shape is determined under the action of the gravity of the fan blade; the plane quadrilateral structure formed by the fan blade supporting plate 88, the suspension rod 87 and the T-shaped frame 89 longitudinal beam prevents the fan blade from moving along the beam direction of the T-shaped frame 89 in the hoisting and mounting processes, and is convenient for the installation and positioning of the fan blade. In the hoisting and mounting process, the root part of the fan blade is sleeved on the second belt sling 86, the tip part of the fan blade is placed on the fan blade supporting plate 88, and the third load drum 43 rotates to recover the steel cable c, so that the third hook 70 is driven to ascend, the fan blade carrier 8 carrying the fan blade ascends, and the hoisting task is completed.
Claims (6)
1. A wind generating set hoisting tower crane device capable of being stably supported comprises a swing mechanism, a hoisting mechanism, a main crane boom and an amplitude-variable boom, wherein the bottom of the main crane boom is hinged to the front end of the swing mechanism, the main crane boom is composed of four sections of telescopic sleeves, a first sleeve is arranged on the outermost side, a fourth sleeve is arranged on the innermost side, the bottom of the first sleeve is hinged to the swing mechanism, a first hook mounting seat is arranged at the top of the fourth sleeve, a first hook is arranged on the first hook mounting seat, a first connecting truss is arranged above the first hook mounting seat, an obtuse triangular truss is arranged above the first connecting truss, and a first acute angle part of the obtuse triangular truss faces upwards; the luffing jib comprises a first main truss and a second main truss, wherein a second hook mounting seat is arranged at the top of the first main truss, and a second hook is arranged on the second hook mounting seat; the second main truss is fixedly arranged at the top of the second hook mounting seat, a third hook mounting seat is fixedly arranged at the top of the second main truss, and a third hook is arranged on the third hook mounting seat; the hoisting mechanism is arranged on the swing mechanism and comprises a first load winding drum, a second load winding drum and a third load winding drum, and the first hook is connected with the first load winding drum through a first steel cable; the second lifting hook is connected with the second load drum through a second steel cable, and the third lifting hook is connected with the third load drum through a third steel cable; the main crane boom is provided with a stable supporting device, the stable supporting device comprises a tensioning mechanism supporting seat, two lower tensioning arms and two upper tensioning arms, the inner side end of the tensioning mechanism supporting seat is hinged to the top of a first sleeve, a fifth oil cylinder is arranged between the first sleeve on the lower portion of the tensioning mechanism supporting seat and the outer side end of the tensioning mechanism supporting seat, the two lower tensioning arms are opened according to a splayed shape, the inner side ends of the two lower tensioning arms are respectively hinged to one side of the tensioning mechanism supporting seat, and a fourth oil cylinder is arranged between each lower tensioning arm and the tensioning mechanism supporting seat; a first steel cable connector is arranged at the outer side end of the lower tensioning arm, a second steel cable connector is arranged at the bottom of the first sleeve, and the first steel cable connector and the second steel cable connector are connected through a fifth steel cable; the two upper tensioning arms are also opened according to a splayed shape, the inner side ends of the two upper tensioning arms are respectively hinged to the middle part of the first connecting truss, the upper parts of the outer side ends of the upper tensioning arms are hinged to first pull rods, the upper ends of the first pull rods are hinged to the top of the first connecting truss, the lower parts of the outer side ends of the upper tensioning arms are hinged to second pull rods, the bottoms of the second pull rods are provided with first pulleys, the outer side ends of the two lower tensioning arms are provided with second pulley blocks, and the first pulleys are connected with the second pulley blocks through sixth steel cables;
the variable-amplitude suspension arm further comprises a variable-amplitude driving device, and the variable-amplitude driving device comprises a first variable-amplitude support, a second variable-amplitude support, a first variable-amplitude pull rod, a second variable-amplitude pull rod and a third variable-amplitude pull rod; the hoisting mechanism comprises a hoisting mechanism, a first variable amplitude support and a second variable amplitude support, wherein the inner side end of the first variable amplitude support is hinged to an upward first acute angle part of an obtuse angle triangular truss, the bottom of the first variable amplitude pull rod is hinged to the outer side end of the first variable amplitude support, the top of the first variable amplitude pull rod is hinged to the third hook mounting seat, the inner side end of the second variable amplitude support is hinged to the second acute angle part, the upper end of the second variable amplitude pull rod is hinged to the outer side end of the first variable amplitude support, the lower end of the second variable amplitude pull rod is hinged to the outer side end of the second variable amplitude support, the upper end of the third variable amplitude pull rod is hinged to the outer side end of the second variable amplitude support, the lower end of the third variable amplitude pull rod is hinged to a pulley mechanism, the hoisting mechanism further comprises a variable amplitude winding drum;
the first amplitude variation support comprises a ladder frame structure, a fourth pulley support and a fourth pulley; the first amplitude-variable support main body structure is a ladder frame structure, the fourth pulley support is arranged on a third crosspiece and a fourth crosspiece from the free end of the first amplitude-variable support, the fourth pulley is arranged on the fourth pulley support through a revolute pair, a second steel cable wound on a second load drum passes through a gap of the fourth crosspiece of the second amplitude-variable support to be in contact with the fourth pulley, and the fourth pulley changes the running direction of the second steel cable so that the second steel cable is connected with the second hook; and the third steel cable wound on the third load drum passes through a third crosspiece gap of the second amplitude variation bracket to be in contact with the fourth pulley, and the fourth pulley changes the running direction of the third steel cable, so that the third steel cable is connected with the third lifting hook.
2. The stably supported wind generating set hoisting tower device according to claim 1, wherein the bottom of the first main truss is provided with an acute angle triangular truss, and the top corner of the acute angle triangular truss is hinged with the first acute angle part of the obtuse angle triangular truss upwards.
3. The stably supported wind generating set lifting tower device of claim 1, wherein the third hook is provided with a fan blade carrier.
4. The stably supported wind generating set hoisting tower device of claim 3, wherein the fan blade carrier comprises a first belt sling, a first bolt, a second bolt, a third bolt, a fourth bolt, a fifth bolt, a first lifting lug, a second lifting lug, a third lifting lug, a chain plate, a second belt sling, a suspension rod, a fan blade support plate and a T-shaped frame;
the right end of the first belt sling is provided with a fixed point, the left end of the first belt sling is provided with two fixed points, the middle part of the first belt sling is provided with a bifurcation point on the left side, the bifurcation structure can be clamped into two hook grooves of a third lifting hook, and the bifurcation point of the bifurcation structure is contacted with a hook arm of the third lifting hook; the upper surface and the lower surface of one end of the T-shaped frame cross beam are provided with a fixed mounting point, the other end of the T-shaped frame cross beam is fixed with the middle part of the longitudinal beam, and the upper surface and the lower surface of two ends of the longitudinal beam are respectively provided with a fixed point; the three first lifting lugs are fixed on the upper surfaces of the T-shaped frame cross beam and the longitudinal beam, and the first bolt passes through the fixing round hole of the first lifting lug and the mounting hole of the fixing end of the first belt sling to connect the T-shaped frame and the first belt sling; the T-shaped frame and the first belt sling jointly form a stable tetrahedron structure in space; three second lifting lugs are fixed on the lower surfaces of the T-shaped frame cross beam and the longitudinal beam, and the opening directions of the three second lifting lugs are parallel to the T-shaped frame longitudinal beam; mounting holes are formed in the two ends of each hanging rod, the two hanging rods are fixed on the second lifting lugs through bolts, the two hanging rods are located below the longitudinal beams of the T-shaped frame, the upper ends of the two chain plates are mounted on the second lifting lugs on the lower surface of the cross beam of the T-shaped frame through fourth bolts, the second belt sling is mounted at the lower ends of the chain plates by bypassing the fifth bolts, and the second belt sling is soft; the third lifting lugs are arranged at two ends of the upper surface of the fan blade supporting plate, and the fan blade supporting plate is arranged at the lower end of the suspension rod through the third lifting lugs and a third bolt on the fan blade supporting plate; the opening direction of the third lifting lug is parallel to the T-shaped frame longitudinal beam, the fan blade supporting plate and the T-shaped frame longitudinal beam are equal in length and width, and the fan blade supporting plate, the suspension rod and the T-shaped frame longitudinal beam form a planar quadrilateral structure.
5. The stably supported wind generating set hoisting tower device of claim 1, wherein the second pulley block comprises a second pulley, a third pulley, a roller frame and a second pulley block housing; the second pulley block shell is fixedly arranged at the outer side end of the lower tensioning arm; the second pulley is arranged on the second pulley block shell through a revolute pair and rotates to adjust the length of the fifth steel cable; the third pulley is arranged on the shell of the second pulley block shell, and the third pulley is fixed during working; one end of a fifth steel cable is wound on the third pulley, penetrates through the first pulley and then is wound on the second pulley at the other end; when the main crane boom extends, the sixth steel cable extends to enable the second pulley to rotate, and when the main crane boom extends to reach a specified height, the second pulley stops rotating and tightens the sixth steel cable to achieve the purpose of tightening; the cylinder passes through the cylinder frame to be installed at the upper surface of second assembly pulley shell, and the cylinder is located the both sides of sixth steel cable, and at the flexible in-process of sixth steel cable, the cylinder is used for protecting sixth steel cable, avoids sixth steel cable and second assembly pulley shell frictional contact.
6. The stably supported wind generating set hoisting tower device according to claim 1, wherein the third hook mounting seat comprises a gooseneck boom truss, a fifth guide pulley, a second guide pulley block and pulley side plates, the pulley side plates are mounted on two sides of the top end of the gooseneck boom, and the upper pulleys of the fifth guide pulley and the second guide pulley block are mounted on the pulley side plates; the lower pulley of the second guide pulley block is arranged on the third hook; and a third steel cable is wound on the fifth guide pulley and the second guide pulley block, and the third steel cable is wound and released in the rotation process of the third load winding drum, so that the lifting of the third lifting hook is driven.
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| CN201810735967.2A CN108821137B (en) | 2018-07-06 | 2018-07-06 | Wind generating set hoist and mount tower crane device of stable support |
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| CN201810735967.2A CN108821137B (en) | 2018-07-06 | 2018-07-06 | Wind generating set hoist and mount tower crane device of stable support |
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| CN108821137B true CN108821137B (en) | 2020-02-11 |
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