CN111115433A - Wind generating set blade hoisting device and hoisting method thereof - Google Patents
Wind generating set blade hoisting device and hoisting method thereof Download PDFInfo
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- CN111115433A CN111115433A CN201911318257.0A CN201911318257A CN111115433A CN 111115433 A CN111115433 A CN 111115433A CN 201911318257 A CN201911318257 A CN 201911318257A CN 111115433 A CN111115433 A CN 111115433A
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- blade
- hanger bracket
- connecting rod
- pin shaft
- upper hanger
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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
- B66C1/16—Slings with load-engaging platforms or frameworks
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a wind generating set blade hoisting device and a hoisting method thereof. The device includes: the upper hanger bracket, the lower hanger bracket, the connecting pin shaft and the pin shaft dismounting mechanism; the upper hanger bracket is used for connecting a lifting hook; the lower hanger bracket comprises a first connecting rod, a second connecting rod and a blade supporting plate for connecting the first connecting rod and the second connecting rod, the upper end of the first connecting rod is hinged to the lower part of one side of the upper hanger bracket, and the upper end of the second connecting rod is detachably connected to the lower part of the other side of the upper hanger bracket through a connecting pin shaft; the pin shaft dismounting mechanism is used for controlling the position of the connecting pin shaft so as to control the connection state of the second connecting rod and the upper hanger bracket. The blade hoisting device and the hoisting method of the wind generating set can realize the automatic separation of the upper hanger bracket and the second connecting rod after the blade is installed, thereby realizing the separation of the blade from the upper hanger bracket and the lower hanger bracket, and having simple structure and low cost.
Description
Technical Field
The invention relates to the technical field of wind generating sets, in particular to a blade hoisting device of a wind generating set and a hoisting method thereof.
Background
Currently, wind energy is the fastest-developing clean energy among renewable energy sources, and the wind energy is mainly utilized through a wind generating set, and wind power generation is taken as an environment-friendly energy industry, so that the wind generating set is more and more emphasized in modern energy-deficient society, and the investment on the wind generating set is also more and more increased.
At present, the megawatt capacity of a single offshore wind turbine is gradually increased, the wind turbine captures wind energy to the maximum extent, and the length of a blade is increased; however, for the integral hoisting of the wind wheel with lower hoisting cost, when the wind wheel is assembled on an overlong blade under the condition of limited deck area and limited boom length, the unhooking difficulty is caused because the hoisting point of a crane boom on the operation platform cannot reach the tip of the blade; for solving above-mentioned problem, mainly adopt single blade hoist and mount mode at present, however the hoist structure that single blade hoist and mount mode adopted is complicated, and the hoist is with high costs, and later maintenance is troublesome and maintenance cost is higher, is difficult to use widely.
Therefore, the development of a wind generating set blade hoisting device with simple structure, low manufacturing cost and convenient operation becomes a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a wind generating set blade hoisting device and a hoisting method thereof.
Therefore, the invention discloses a blade hoisting device of a wind generating set, which comprises: the upper hanger bracket, the lower hanger bracket, the connecting pin shaft and the pin shaft dismounting mechanism;
the upper hanger bracket is used for connecting a lifting hook of the operation platform;
the lower hanger bracket comprises a first connecting rod, a second connecting rod and a blade supporting plate which is connected with the first connecting rod and the second connecting rod and used for supporting a blade, the upper end of the first connecting rod is hinged to the lower part of one side of the upper hanger bracket, and the upper end of the second connecting rod is detachably connected to the lower part of the other side of the upper hanger bracket through a connecting pin shaft;
the pin shaft dismounting mechanism is used for controlling the position of the connecting pin shaft so as to control the connection state of the second connecting rod and the upper hanger bracket; when the blade is placed on the blade supporting plate, the connecting pin shaft is in a bolt state under the control of the pin shaft disassembling and assembling mechanism so as to connect the second connecting rod and the upper hanger bracket; when the blade is separated from the blade supporting plate, the connecting pin shaft is in a pin-separating state under the control of the pin shaft dismounting mechanism so as to separate the second connecting rod from the upper lifting appliance support.
Preferably, in the above wind generating set blade hoisting device, the pin shaft dismounting mechanism includes: the connecting device comprises a connecting arm, a T-shaped connecting rod, a first connecting spring, a connecting rope, a connecting plate, a pin ejector rod, a connecting cover body, a second connecting spring and a first connecting bolt;
the side wall of the second connecting rod, which is close to the blade supporting plate, is provided with a first bulge and a second bulge, the end surface of the second bulge is provided with a first through hole, the end surface of the blade supporting plate is provided with a second through hole, the connecting arm is hinged on the first bulge, the two ends of the connecting arm can rotate around a hinged point, one end of the connecting arm can be abutted against the blade through the second through hole, the other end of the connecting arm is detachably connected with the second bulge, the end surface of the other end of the connecting arm is abutted against the head of the T-shaped connecting rod, the tail of the T-shaped connecting rod passes through the first through hole and is connected with one end of the connecting rope, the T-shaped connecting rod is sleeved with the first connecting spring, and the two ends of the first connecting spring are respectively connected with the end surface of the second bulge and the end surface of the, the other end of the connecting rope is connected with the connecting plate;
the side wall of the upper end of the second connecting rod is provided with a pin shaft through hole, the lower part of the other side of the upper hanger bracket is provided with a pin hole matched with the pin shaft through hole and a mandril through hole communicated with the pin hole, one end of the connecting pin shaft penetrates through the pin shaft through hole and is inserted into the pin hole to connect the second connecting rod and the upper hanger bracket, one end of the pin shaft mandril abuts against one end surface of the connecting pin shaft through the mandril through hole, the connecting cover body is arranged on the upper hanger bracket, the end surface of the connecting cover body is provided with a third through hole, the threaded end of the first connecting bolt penetrates through the third through hole and is connected with the other end of the pin shaft mandril, the first connecting bolt is sleeved with the second connecting spring, and the two ends of the second connecting spring are respectively connected with the inner end surface of the connecting cover, and before one end of the pin shaft ejector rod extends into the pin shaft through hole of the second connecting rod, the second connecting spring is in a compressed state, and the connecting plate is detachably placed between the head end face of the first connecting bolt and the outer end face of the connecting cover body.
Preferably, in the wind turbine blade lifting device, the other end of the connecting arm is detachably connected with the second protrusion through a bolt connection manner.
Preferably, in the above wind turbine blade hoisting device, the pin shaft dismounting and mounting mechanism further includes a limiting block, and the limiting block is installed on the outer end face of the connecting cover body and is used for limiting the position of the first connecting bolt, so that one end of the connecting pin shaft just extends out of the pin hole of the upper hanger bracket under the elastic action of the second connecting spring.
Preferably, in the wind generating set blade hoisting device, the pin shaft dismounting and mounting mechanism further comprises a pin shaft pressing plate, the pin shaft pressing plate is detachably mounted on the end face of the side wall at the upper end of the second connecting rod, the mounting height of the pin shaft pressing plate is adjustable, and the pin shaft pressing plate is used for pressing one end of the connecting pin shaft into the pin hole to connect the second connecting rod and the upper hanger bracket.
Preferably, in the above wind turbine generator system blade lifting device, the device further comprises a blade backing plate, and the blade backing plate is movably placed on the blade supporting plate and used for supporting the blade.
Preferably, in the wind turbine blade hoisting device, the device further includes a buffer mechanism, and the buffer mechanism is respectively connected to the first connecting rod and the upper hanger bracket, and is used for buffering the descending motion of the lower hanger bracket when the second connecting rod is separated from the upper hanger bracket.
Preferably, in the above wind turbine blade hoisting device, the buffer mechanism includes a buffer cylinder, one end of the buffer cylinder is connected to the first connecting rod, and the other end of the buffer cylinder is connected to one side of the upper hanger bracket.
Preferably, in the above wind turbine generator system blade hoisting device, the device further includes a hanging strip, and the hanging strip is installed on the upper hanger bracket and used for connecting the lifting hook.
In addition, the invention also discloses a hoisting method implemented by using the wind generating set blade hoisting device, and the hoisting method comprises the following steps:
separating the second connecting rod from the upper hanger bracket, enabling the blade to enter an installation space between the upper hanger bracket and the lower hanger bracket through a gap between the second connecting rod and the upper hanger bracket, fixedly connecting the second connecting rod with the upper hanger bracket by using a connecting pin shaft, placing the blade on a blade supporting plate, and simultaneously connecting a lifting hook with the upper hanger bracket to gradually lift the blade; or, the lower hanger bracket is used as a transportation supporting support of the blade, the blade is placed on the blade supporting plate to be used for supporting the blade, when the blade needs to be hoisted, the first connecting rod is hinged with the upper hanger bracket, the second connecting rod is fixedly connected with the upper hanger bracket by using the connecting pin shaft, and meanwhile, the lifting hook is connected with the upper hanger bracket to gradually hoist the blade;
when the blade is hoisted to the installation position, the blade is installed;
gradually lowering the upper hanger bracket to separate the other side of the upper hanger bracket from the second connecting rod;
and moving the upper hanger bracket to enable the blade to penetrate out from the gap between the second connecting rod and the upper hanger bracket.
The technical scheme of the invention has the following main advantages:
according to the blade hoisting device and the hoisting method of the wind generating set, the connecting pin shaft and the pin shaft dismounting and mounting mechanism are arranged, and the pin shaft dismounting and mounting mechanism and the blade are matched to control the conversion of the bolt state and the pin release state of the connecting pin shaft, so that the connection control of the upper hanger bracket and the lower hanger bracket is realized, the automatic separation of the upper hanger bracket and the second connecting rod can be realized after the blade is mounted, and the separation of the blade from the upper hanger bracket and the lower hanger bracket is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a blade hoisting device of a wind generating set in a connection state according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a blade hoisting device of a wind generating set in a separated state according to an embodiment of the invention;
FIG. 3 is an enlarged view of section I of FIG. 1;
FIG. 4 is a sectional view taken along line A of FIG. 3 in the latched condition;
fig. 5 is a sectional view taken along the line a in fig. 3 in a state of being out of the pin.
Description of reference numerals:
1-upper hanger bracket, 2-lower hanger bracket, 21-first connecting rod, 22-second connecting rod, 221-first protrusion, 222-second protrusion, 23-blade supporting plate, 3-connecting pin shaft, 4-pin shaft dismounting mechanism, 41-connecting arm, 42-T type connecting rod, 43-first connecting spring, 44-connecting rope, 45-connecting plate, 46-pin shaft ejector rod, 47-connecting cover body, 48-second connecting spring, 49-first connecting bolt, 410-limiting block, 411-pin shaft pressing plate, 5-blade backing plate, 6-buffer mechanism, 7-hanging strip, 8-hanging hook and 9-blade.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
As shown in the attached drawings 1-2, the invention provides a blade hoisting device of a wind generating set, which comprises: the device comprises an upper hanger bracket 1, a lower hanger bracket 2, a connecting pin shaft 3 and a pin shaft dismounting mechanism 4; the upper hanger bracket 1 is used for connecting a lifting hook 8 of the operation platform; the lower hanger bracket 2 comprises a first connecting rod 21, a second connecting rod 22 and a blade supporting plate 23 which is connected with the first connecting rod 21 and the second connecting rod 22 and used for supporting the blades 9, the upper end of the first connecting rod 21 is hinged to the lower part of one side of the upper hanger bracket 1, and the upper end of the second connecting rod 22 is separably connected to the lower part of the other side of the upper hanger bracket 1 through a connecting pin shaft 3; the pin shaft dismounting mechanism 4 is used for controlling the position of the connecting pin shaft 3 so as to control the connection state of the second connecting rod 22 and the upper hanger bracket 1; when the blade 9 is placed on the blade supporting plate 23, the connecting pin shaft 3 is in a plug pin state under the control of the pin shaft dismounting mechanism 4 so as to be connected with the second connecting rod 22 and the upper hanger bracket 1; when the blade 9 is separated from the blade support plate 23, the connecting pin shaft 3 is in a pin-separating state under the control of the pin shaft disassembling and assembling mechanism 4 so as to separate the second connecting rod 22 from the upper hanger bracket 1.
When the blade hoisting device of the wind generating set is used, the second connecting rod 22 is separated from the upper hanger bracket 1, so that a blade 9 to be hoisted is arranged in an installation space between the second connecting rod 22 and the upper hanger bracket 1 through a gap between the second connecting rod 22 and the upper hanger bracket 1, then the second connecting rod 22 and the upper hanger bracket 1 are fixedly connected by using the connecting pin shaft 3, the blade 9 is placed on the blade supporting plate 23, meanwhile, the lifting hook 8 is connected with the upper hanger bracket 1, and the upper hanger bracket 1, the lower hanger bracket 2 and the blade 9 placed on the upper hanger bracket 1 and the lower hanger bracket 2 are gradually hoisted by using the lifting hook 8; or, the lower hanger bracket 2 is used as a transportation supporting support of the blade 9, the blade 9 is placed on the blade supporting plate 23 to support the blade 9, when the blade 9 needs to be hoisted, the first connecting rod 21 is hinged with the upper hanger bracket 1, the second connecting rod 22 is fixedly connected with the upper hanger bracket 1 by using the connecting pin shaft 3, meanwhile, the hook 8 is connected with the upper hanger bracket 1, and the upper hanger bracket 1, the lower hanger bracket 2 and the blade 9 placed thereon are gradually hoisted by using the hook 8; in the process of hoisting the blade 9, the pin shaft dismounting mechanism 4 enables the connecting pin shaft 3 to keep a pin-pin state under the action of the blade 9 so as to fixedly connect the second connecting rod 22 with the upper hanger bracket 1, when the blade 9 is hoisted to a mounting position, the blade 9 is mounted, after the blade 9 is mounted, the upper hanger bracket 1 is gradually lowered by using the lifting hook 8, because the blade 9 is already mounted, in the process of descending the upper hanger bracket 1, the blade 9 is separated from the blade supporting plate 23 of the lower hanger bracket 2, at the moment, the connecting pin shaft 3 is changed from the pin-pin state to a pin-off state under the control of the pin shaft dismounting mechanism 4 so as to enable the second connecting rod 22 to be separated from the upper hanger bracket 1, then the upper hanger bracket 1 and the lower hanger bracket 2 are moved, and the mounted blade 9 is separated from the upper hanger bracket 1 and the lower hanger bracket 2 through the gap between the second connecting rod 22 and the upper, and completing the hoisting of the blade 9.
The structure and the working principle of the blade hoisting device of the wind generating set provided by the invention are specifically explained by the specific embodiment.
How to realize the switching control of the inserted pin state and the removed pin state of the connecting pin shaft 3 by using the blade 9 and the pin shaft dismounting mechanism 4 to control the connection and the separation of the second connecting rod 22 and the upper hanger bracket 1 is exemplified below;
as shown in fig. 3 to 5, in the embodiment of the present invention, the pin shaft detaching and attaching mechanism 4 may include: the connecting arm 41, the T-shaped connecting rod 42, the first connecting spring 43, the connecting rope 44, the connecting plate 45, the pin ejector rod 46, the connecting cover body 47, the second connecting spring 48 and the first connecting bolt 49; a first protrusion 221 and a second protrusion 222 are arranged on the side wall of the second connecting rod 22 close to the blade supporting plate 23, a first through hole is formed on the end surface of the second protrusion 222, a second through hole is formed on the end surface of the blade supporting plate 23, the connecting arm 41 is hinged on the first protrusion 221, two ends of the connecting arm 41 can rotate around a hinge point, one end of the connecting arm 41 can abut against the blade 9 through the second through hole, the other end of the connecting arm 41 is detachably connected with the second protrusion 222, the end surface of the other end abuts against the head of the T-shaped connecting rod 42, the tail of the T-shaped connecting rod 42 penetrates through the first through hole and is connected with one end of a connecting rope 44, the T-shaped connecting rod 42 is sleeved with a first connecting spring 43, two ends of the first connecting spring 43 are respectively connected with the end surface of the second protrusion 222 and the end surface of the head; the side wall of the upper end of the second connecting rod 22 is provided with a pin shaft through hole, the lower part of the other side of the upper hanger bracket 1 is provided with a pin hole matched with the pin shaft through hole and a mandril through hole communicated with the pin hole, one end of the connecting pin shaft 3 passes through the pin shaft through hole and is inserted into the pin hole to connect the second connecting rod 22 and the upper hanger bracket 1, one end of the pin shaft mandril 46 is propped against one end surface of the connecting pin shaft 3 through the mandril through hole, a connecting cover body 47 is arranged on the upper hanger bracket 1, the end surface of the connecting cover body 47 is provided with a third through hole, the threaded end of the first connecting bolt 49 passes through the third through hole and is connected with the other end of the pin shaft mandril 46, the first connecting bolt 49 is sleeved with a second connecting spring 48, the two ends of the second connecting spring 48 are respectively connected with the inner end surface of the connecting cover body 47 and the, the connecting plate 45 is detachably placed between the head end face of the first connecting bolt 49 and the outer end face of the connecting cover 47.
Specifically, when the blade 9 needs to be hoisted, the blade 9 to be hoisted is placed on the blade supporting plate 23 through the gap between the second connecting rod 22 and the upper hoist bracket 1; or, the lower hanger bracket 2 is used as a transportation supporting support of the blade 9, the blade 9 is placed on the blade supporting plate 23 to support the blade 9, and when the blade 9 needs to be hoisted, the first connecting rod 21 is hinged with the upper hanger bracket 1; one end of the connecting arm 41 is abutted against the blade 9 through the second through hole of the blade supporting plate 23, the other end of the connecting arm 41 is fixedly connected to the second protrusion 222, the connecting pin shaft 3 is adjusted to enable one end of the connecting pin shaft 3 to be inserted into the pin hole through the pin shaft through hole to connect the second connecting rod 22 and the upper hanger bracket 1, at this time, the pin shaft ejector rod 46 and the first connecting bolt 49 are pushed out outwards by the connecting pin shaft 3, the connecting plate 45 is placed between the end surface of the head of the first connecting bolt 49 and the outer end surface of the connecting cover body 47, under the elastic force of the second connecting spring 48, the connecting plate 45 is pressed against the connecting cover body 47 by the head of the first connecting bolt 49 to limit the positions of the first connecting bolt 49 and the pin shaft ejector rod 46, so that the connecting pin shaft 3 keeps the inserted state, and then the upper hanger bracket 1, the lower hanger bracket 2 and the blade 9 are lifted, after the blade 9 presses one end of the connecting arm 41, the connection between the other end of the connecting arm 41 and the second protrusion 222 is removed, and at this time, the first connecting spring 43 on the end surface of the other end of the connecting arm 41 is still in a compressed state under the pressing force of the blade 9; after the connection between the connecting arm 41 and the second protrusion 222 is removed, the blade 9 is lifted to the installation position by using the lifting hook 8 so as to install the blade 9; when the blade 9 is installed and the blade 9 needs to be separated from the upper hanger bracket 1 and the lower hanger bracket 2, the upper hanger bracket 1 and the lower hanger bracket 2 are gradually moved downwards by the hook 8, because the blade 9 is installed, the blade 9 is separated from the blade support plate 23 of the lower hanger bracket 2 and one end of the connecting arm 41, the other end of the connecting arm 41 rotates downwards under the elastic force of the first connecting spring 43, the T-shaped connecting rod 42 also moves downwards under the elastic force of the first connecting spring 43, the T-shaped connecting rod 42 moves downwards to pull the connecting rope 44 and the connecting plate 45 connected with the other end of the connecting rope 44, so that the connecting plate 45 is pulled out from between the head end face of the first connecting bolt 49 and the outer end face of the connecting cover body 47, when the connecting plate 45 is pulled out, the first connecting bolt 49 and the pin ejector 46 push out the connecting pin 3 from the pin hole under the elastic force of the second connecting spring 48, the connecting pin shaft 3 is converted into a pin-out state from a pin-in state, so that the upper hanger bracket 1 is separated from the lower hanger bracket 2, and then the upper hanger bracket 1 and the lower hanger bracket 2 are moved, so that the installed blade 9 penetrates out through a gap between the second connecting rod 22 and the upper hanger bracket 1, and the blade 9 is hoisted.
In order to facilitate the detachment and installation of the connecting arm 41 and the second protrusion 222 on the second connecting rod 22, as shown in fig. 3, in the embodiment of the present invention, the other end of the connecting arm 41 is detachably connected to the second protrusion 222 through a bolt connection manner.
Preferably, in order to avoid that the upper hanger bracket 1 and the second connecting rod 22 cannot be separated due to interference between the connecting pin shaft 3 and the upper hanger bracket 1 or interference between the pin shaft top rod 46 and the second connecting rod 22 in the process of separating the upper hanger bracket 1 and the second connecting rod 22; as shown in fig. 4-5, in the embodiment of the present invention, the pin disassembling and assembling mechanism 4 further includes a limiting block 410, and the limiting block 410 is installed on the outer end surface of the connecting cover 47 and is used for limiting the position of the first connecting bolt 49, so that one end of the connecting pin 3 just extends out of the pin hole of the upper hanger bracket 1 under the elastic force of the second connecting spring 48. Specifically, when the limiting block 410 abuts against the head of the first connecting bolt 49, the end surface of one end of the pin ejector rod 46 just coincides with the end surface of the upper hanger bracket 1 (i.e., the outlet end surface of the pin hole).
Further, in order to facilitate inserting one end of the connecting pin hole into the pin hole of the upper hanger bracket 1 to connect the upper hanger bracket 1 and the second connecting rod 22, as shown in fig. 4, in the embodiment of the present invention, the pin shaft dismounting mechanism 4 further includes a pin shaft pressing plate 411, the pin shaft pressing plate 411 is detachably mounted on the end surface of the side wall at the upper end of the second connecting rod 22, and the mounting height of the pin shaft pressing plate 411 is adjustable, so as to press one end of the connecting pin shaft 3 into the pin hole to connect the second connecting rod 22 and the upper hanger bracket 1.
Specifically, when the pin pressing plate 411 is installed on the second connecting rod 22, the end surface of the pin pressing plate 411 abuts against the end surface of the connecting pin 3, when one end of the connecting pin 3 needs to be inserted into the pin hole, the installation height of the pin pressing plate 411 is gradually reduced, the connecting pin 3 is gradually inserted into the pin hole under the pressing force of the pin pressing plate 411, and after the connecting pin 3 is inserted into the pin hole of the upper hanger bracket 1, the pin pressing plate 411 is removed. Preferably, the pin pressing plate 411 may be detachably and adjustably mounted on the second connecting rod 22 by means of bolts. So set up, can be convenient for the dismouting of round pin axle clamp plate 411, can be convenient for again adjust the mounting height of round pin axle clamp plate 411.
Further, in order to ensure the safety and reliability of the blade hoisting device, as shown in fig. 1 to 3, in the embodiment of the present invention, the blade hoisting device further includes a blade backing plate 5, and the blade backing plate 5 is movably disposed on the blade supporting plate 23 for supporting the blade 9. Under the specific structure of the pin shaft dismounting mechanism 4, one end of the connecting arm 41 can be abutted against the blade backing plate 5 through the second through hole.
Because the lower hanger bracket 2 is hinged to the lower part of one side of the upper hanger bracket 1 through the first connecting rod 21, when the upper hanger bracket 1 is separated from the second connecting rod 22, the lower hanger bracket 2 can rotate around the hinged point of the upper hanger bracket 1 and the first connecting rod 21, in order to buffer the rotation of the lower hanger bracket 2 when the upper hanger bracket 1 is automatically separated from the second connecting rod 22, the rotating angle of the lower hanger bracket 2 is limited, and the structural stability, the safety and the reliability of the blade hoisting device are improved; as shown in fig. 1-2, in the embodiment of the present invention, the blade hoisting device further includes a buffer mechanism 6, and the buffer mechanism 6 is respectively connected to the first connecting rod 21 and the upper hanger bracket 1, and is configured to buffer the rotation of the lower hanger bracket 2 when the second connecting rod 22 is separated from the upper hanger bracket 1.
The specific structure of the buffer mechanism 6 can be set according to actual conditions, as long as the rotation of the lower hanger bracket 2 can be buffered, preferably, in the embodiment of the present invention, the buffer mechanism 6 includes a buffer cylinder, one end of the buffer cylinder is connected to the first connecting rod 21, and the other end of the buffer cylinder is connected to one side of the upper hanger bracket 1.
Further, as shown in fig. 1-2, in order to facilitate the connection between the upper hanger bracket 1 and the hook 8, in the embodiment of the present invention, the blade hanging device further includes a hanging strip 7, and the hanging strip 7 is mounted on the upper hanger bracket 1 and is used for connecting the hook 8.
In addition, the embodiment of the invention also provides a hoisting method implemented by using the wind generating set blade hoisting device, and the hoisting method comprises the following steps:
separating the second connecting rod 22 from the upper hanger bracket 1, enabling the blade 9 to enter an installation space between the upper hanger bracket 1 and the lower hanger bracket 2 through a gap between the second connecting rod 22 and the upper hanger bracket 1, fixedly connecting the second connecting rod 22 and the upper hanger bracket 1 by using the connecting pin shaft 3, placing the blade 9 on the blade supporting plate 23, and simultaneously connecting the lifting hook 8 with the upper hanger bracket 1 to gradually lift the blade 9; or, the lower hanger bracket 2 is used as a transportation supporting support of the blade 9, the blade 9 is placed on the blade supporting plate 23 to support the blade 9, when the blade 9 needs to be hoisted, the first connecting rod 21 is hinged with the upper hanger bracket 1, the second connecting rod 22 is fixedly connected with the upper hanger bracket 1 by the connecting pin shaft 3, and meanwhile, the hook 8 is connected with the upper hanger bracket 1 to gradually hoist the blade 9;
when the blade 9 is hoisted to the installation position, the blade 9 is installed;
gradually lowering the upper hanger bracket 1 to separate the other side of the upper hanger bracket 1 from the second connecting rod 22;
the upper spreader bracket 1 is moved so that the blade 9 passes out of the gap between the second connecting rod 22 and the upper spreader bracket 1.
Specifically, the second connecting rod 22 is separated from the upper hanger bracket 1, so that the blade 9 to be hoisted is loaded into an installation space between the second connecting rod 22 and the upper hanger bracket 1 through a gap between the second connecting rod 22 and the upper hanger bracket 1, then the second connecting rod 22 is fixedly connected with the upper hanger bracket 1 by using the connecting pin shaft 3, the blade 9 is placed on the blade supporting plate 23, meanwhile, the hook 8 is connected with the upper hanger bracket 1, and the upper hanger bracket 1, the lower hanger bracket 2 and the blade 9 placed thereon are gradually hoisted by using the hook 8; or, the lower hanger bracket 2 is used as a transportation supporting support of the blade 9, the blade 9 is placed on the blade supporting plate 23 to support the blade 9, when the blade 9 needs to be hoisted, the first connecting rod 21 is hinged with the upper hanger bracket 1, the second connecting rod 22 is fixedly connected with the upper hanger bracket 1 by using the connecting pin shaft 3, meanwhile, the hook 8 is connected with the upper hanger bracket 1, and the upper hanger bracket 1, the lower hanger bracket 2 and the blade 9 placed thereon are gradually hoisted by using the hook 8; in the process of hoisting the blade 9, the pin shaft dismounting mechanism 4 enables the connecting pin shaft 3 to keep a pin-pin state under the action of the blade 9 so as to fixedly connect the second connecting rod 22 with the upper hanger bracket 1, when the blade 9 is hoisted to a mounting position, the blade 9 is mounted, after the blade 9 is mounted, the upper hanger bracket 1 is gradually lowered by using the lifting hook 8, because the blade 9 is already mounted, in the process of descending the upper hanger bracket 1, the blade 9 is separated from the blade supporting plate 23 of the lower hanger bracket 2, at the moment, the connecting pin shaft 3 is changed from the pin-pin state to a pin-off state under the control of the pin shaft dismounting mechanism 4 so as to enable the second connecting rod 22 to be separated from the upper hanger bracket 1, then the upper hanger bracket 1 and the lower hanger bracket 2 are moved, and the mounted blade 9 is separated from the upper hanger bracket 1 and the lower hanger bracket 2 through the gap between the second connecting rod 22 and the upper, and completing the hoisting of the blade 9.
Therefore, the blade hoisting device and the hoisting method of the wind generating set provided by the embodiment of the invention realize the connection control of the upper hanger bracket 1 and the lower hanger bracket 2 by arranging the connecting pin shaft 3 and the pin shaft dismounting mechanism 4 and controlling the conversion of the bolt state and the bolt releasing state of the connecting pin shaft 3 through the matching of the pin shaft dismounting mechanism 4 and the blade 9, and can realize the automatic separation of the upper hanger bracket 1 and the second connecting rod 22 after the blade 9 is installed, thereby realizing the separation of the blade 9 from the upper hanger bracket 1 and the lower hanger bracket 2, and having the advantages of simple structure, convenient operation and low cost.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A wind generating set blade hoist device which characterized in that, the device includes: the device comprises an upper hanger bracket (1), a lower hanger bracket (2), a connecting pin shaft (3) and a pin shaft dismounting mechanism (4);
the upper hanger bracket (1) is used for connecting a lifting hook (8) of the operation platform;
the lower hanger bracket (2) comprises a first connecting rod (21), a second connecting rod (22) and a blade supporting plate (23) which is connected with the first connecting rod (21) and the second connecting rod (22) and used for supporting a blade (9), the upper end of the first connecting rod (21) is hinged to the lower part of one side of the upper hanger bracket (1), and the upper end of the second connecting rod (22) is detachably connected to the lower part of the other side of the upper hanger bracket (1) through a connecting pin shaft (3);
the pin shaft dismounting and mounting mechanism (4) is used for controlling the position of the connecting pin shaft (3) so as to control the connection state of the second connecting rod (22) and the upper hanger bracket (1); when the blade (9) is placed on the blade supporting plate (23), the connecting pin shaft (3) is in a bolt state under the control of the pin shaft dismounting mechanism (4) to connect the second connecting rod (22) and the upper hanger bracket (1); when the blade (9) is separated from the blade supporting plate (23), the connecting pin shaft (3) is in a pin-separating state under the control of the pin shaft dismounting mechanism (4) so as to separate the second connecting rod (22) from the upper lifting appliance support (1).
2. Wind turbine generator system blade lifting device according to claim 1, characterised in that the pin dismounting mechanism (4) comprises: the device comprises a connecting arm (41), a T-shaped connecting rod (42), a first connecting spring (43), a connecting rope (44), a connecting plate (45), a pin shaft ejector rod (46), a connecting cover body (47), a second connecting spring (48) and a first connecting bolt (49);
a first bulge (221) and a second bulge (222) are arranged on the side wall, close to the blade supporting plate (23), of the second connecting rod (22), a first through hole is formed in the end face of the second bulge (222), a second through hole is formed in the end face of the blade supporting plate (23), the connecting arm (41) is hinged to the first bulge (221), two ends of the connecting arm (41) can rotate around a hinged point, one end of the connecting arm (41) can abut against the blade (9) through the second through hole, the other end of the connecting arm (41) is detachably connected with the second bulge (222), the end face of the other end of the connecting arm abuts against the head of the T-shaped connecting rod (42), the tail of the T-shaped connecting rod (42) penetrates through the first through hole and is connected with one end of the connecting rope (44), and the first connecting spring (43) is sleeved on the T-shaped connecting rod (42), two ends of the first connecting spring (43) are respectively connected with the end surface of the second bulge (222) and the end surface of the head part of the T-shaped connecting rod (42), and the other end of the connecting rope (44) is connected with the connecting plate (45);
the side wall of the upper end of the second connecting rod (22) is provided with a pin shaft through hole, the lower part of the other side of the upper hanger bracket (1) is provided with a pin hole matched with the pin shaft through hole and a mandril through hole communicated with the pin hole, one end of the connecting pin shaft (3) penetrates through the pin shaft through hole (3) and is inserted into the pin hole to connect the second connecting rod (22) and the upper hanger bracket (1), one end of the pin shaft mandril (46) is abutted against the end face of one end of the connecting pin shaft (3) through the mandril through hole, the connecting cover body (47) is installed on the upper hanger bracket (1), the end face of the connecting cover body (47) is provided with a third through hole, the threaded end of the first connecting bolt (49) penetrates through the third through hole to be connected with the other end of the pin shaft mandril (46), and the first connecting bolt (49) is sleeved with the, the two ends of the second connecting spring (48) are respectively connected with the inner end face of the connecting cover body (47) and the other end face of the pin shaft ejector rod (46), the second connecting spring (48) is in a compressed state before one end of the pin shaft ejector rod (46) extends into the pin shaft through hole of the second connecting rod (22), and the connecting plate (45) is separably placed between the head end face of the first connecting bolt (49) and the outer end face of the connecting cover body (47).
3. Wind turbine blade lifting device according to claim 2, characterised in that the other end of the connecting arm (41) is detachably connected to the second protrusion (222) by means of a bolt connection.
4. The wind generating set blade hoisting device according to claim 2, wherein the pin shaft dismounting and mounting mechanism (4) further comprises a limiting block (410), the limiting block (410) is mounted on the outer end face of the connecting cover body (47) and used for limiting the position of the first connecting bolt (49) so that one end of the connecting pin shaft (3) just extends out of the pin hole of the upper hanger bracket (1) under the elastic force of the second connecting spring (48).
5. The wind generating set blade hoisting device according to claim 2, wherein the pin shaft dismounting mechanism (4) further comprises a pin shaft pressing plate (411), the pin shaft pressing plate (411) is detachably mounted on the end surface of the side wall of the upper end of the second connecting rod (22), and the mounting height of the pin shaft pressing plate (411) is adjustable, so as to press one end of the connecting pin shaft (3) into the pin hole to connect the second connecting rod (22) and the upper hanger bracket (1).
6. Wind park blade lifting device according to claim 1 or 2, wherein the device further comprises a blade backing plate (5), the blade backing plate (5) being movably placed on the blade support plate (23) for supporting the blade (9).
7. Wind turbine blade lifting device according to claim 1 or 2, characterized in that the device further comprises a damping mechanism (6), the damping mechanism (6) connecting the first connecting rod (21) and the upper spreader bracket (1) respectively for damping the rotation of the lower spreader bracket (2) when the second connecting rod (22) is separated from the upper spreader bracket (1).
8. Wind turbine blade lifting device according to claim 7, characterised in that the damping mechanism (6) comprises a damping cylinder, one end of which is connected to the first connecting rod (21) and the other end of which is connected to one side of the upper spreader bracket (1).
9. Wind turbine blade lifting device according to claim 1 or 2, characterized in that the device further comprises a lifting strap (7), the lifting strap (7) being mounted on the upper lifting bracket (1) for connection to the lifting hook (8).
10. A hoisting method implemented by the wind turbine generator system blade hoisting device of claims 1-9, the hoisting method comprising:
separating the second connecting rod (22) from the upper hanger bracket (1), enabling the blade (9) to enter an installation space between the upper hanger bracket (1) and the lower hanger bracket (2) through a gap between the second connecting rod (22) and the upper hanger bracket (1), fixedly connecting the second connecting rod (22) and the upper hanger bracket (1) by using a connecting pin shaft (3), placing the blade (9) on a blade supporting plate (23), and simultaneously connecting a lifting hook (8) with the upper hanger bracket (1) to gradually lift the blade (9); or, the lower hanger bracket (2) is used as a transportation supporting support of the blade (9), the blade (9) is placed on the blade supporting plate (23) to be used for supporting the blade (9), when the blade (9) needs to be hoisted, the first connecting rod (21) is hinged with the upper hanger bracket (1), the second connecting rod (22) is fixedly connected with the upper hanger bracket (1) through the connecting pin shaft (3), meanwhile, the hook (8) is connected with the upper hanger bracket (1), and the blade (9) is gradually hoisted;
when the blade (9) is hoisted to the installation position, the blade (9) is installed;
gradually lowering the upper hanger bracket (1) to separate the other side of the upper hanger bracket (1) from the second connecting rod (22);
and moving the upper hanger bracket (1) to enable the blade (9) to penetrate out from the gap between the second connecting rod (22) and the upper hanger bracket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318257.0A CN111115433B (en) | 2019-12-19 | 2019-12-19 | Wind generating set blade hoisting device and hoisting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318257.0A CN111115433B (en) | 2019-12-19 | 2019-12-19 | Wind generating set blade hoisting device and hoisting method thereof |
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| CN111115433A true CN111115433A (en) | 2020-05-08 |
| CN111115433B CN111115433B (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112010151A (en) * | 2020-09-16 | 2020-12-01 | 三一海洋重工有限公司 | Lifting appliance device and lifting machinery |
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| CN111115433B (en) | 2021-01-26 |
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