CN203754289U - Crane in wind turbine generator system - Google Patents
Crane in wind turbine generator system Download PDFInfo
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- CN203754289U CN203754289U CN201420119612.8U CN201420119612U CN203754289U CN 203754289 U CN203754289 U CN 203754289U CN 201420119612 U CN201420119612 U CN 201420119612U CN 203754289 U CN203754289 U CN 203754289U
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- chain
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- swing arm
- secondary swing
- lifting device
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- 239000000725 suspension Substances 0.000 claims description 10
- 239000007769 metal material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a crane in a wind turbine generator system, relates to the technique of wind power generation, and solves the problems that in the prior art a crane has small possibility of maintaining and an engine room is greatly limited at the same time so that the space inside the engine room of a wind machine is wasted. According to the embodiment of the utility model, the crane in the wind turbine generator system comprises a vertical column, a main swinging arm and a secondary swinging arm, wherein the vertical column is fixedly arranged inside the engine room of the wind turbine generator system; the main swinging arm is arranged on the vertical column; the secondary swinging arm is connected with the main swinging arm; a chain box is arranged on the lower side of the connecting part of the main swinging arm and the secondary swinging arm; a chain lifting device is arranged at a free end of the secondary swinging arm; a chain conveying device is arranged between the chain box and the chain lifting device. The crane is mainly applied to wind machine maintenance.
Description
Technical field
The utility model relates to blower fan generation technology, relates in particular to the hoisting crane in a kind of wind power generating set.
Background technology
The device that wind power generating set (abbreviation blower fan) is is electric energy by wind energy transformation, comprises tower cylinder and is fixed on the engine rooms of wind power generators on tower cylinder.In the long-term process of using, the parts in wind power generating set, are mainly that the parts in engine rooms of wind power generators are prone to fault, therefore need to the parts in engine rooms of wind power generators, keep in repair or periodical maintenance, wherein take and safeguard as main.
Because wind power generating set is generally high-level device, and the volume of the parts in engine rooms of wind power generators is larger, cause artificial directly carrying to be safeguarded very inconvenient, therefore, conventionally hoisting crane need to be set in engine rooms of wind power generators, to have assisted the handling labor of parts by hoisting crane.
The hoisting crane using in prior art is generally folding-jib crane, as shown in Figure 1, comprise the column 11 that is fixed in fan engine room, be fixed on column 11 and the master pendulum arm 12 that can rotate around column 11, the secondary swing arm 13 that is connected with master pendulum arm 12 and can rotates relative to master pendulum arm 12, wherein, the end in secondary swing arm 13 is provided with chain cover 14 and chain lifting device 15.When staff uses hoisting crane that the parts in cabin (weight) are lifted by crane, first by controlling the rotation of master pendulum arm 12 and secondary swing arm 13, by chain cover 14, chain lifting device 15 motor adjustments to weight top, by chain lifting device 15, control afterwards the lifting length of chain, controlling chain declines, make the suspension hook of chain can stablize and be connected with weight, finally by chain lifting device 15, control chains again and be recycled in chain cover 14, thereby complete the operations such as slinging, move of weight.
Yet, as shown in Figure 1, when folding-jib crane of the prior art is sling weight by chain, need to guarantee to there is certain distance (guaranteeing the weight of slinging) between secondary swing arm and weight, simultaneously because chain cover has certain height (being generally 1.5 meters), cause chain when slinging weight, between weight and secondary swing arm, need to have the distance that is not less than chain cover height, thereby make the height of secondary swing arm larger, the whole height of hoisting crane is larger, cause hoisting crane to be safeguarded more difficult; Crane height is larger simultaneously, causes the cabin altitude of blower fan only according to machine below deck equipment, to set, and also needs the height of considering hoisting crane (secondary swing arm) to improve the setting height in cabin, causes the space waste in cabin.
Utility model content
Embodiment of the present utility model provides the hoisting crane in a kind of wind power generating set, has solved hoisting crane of the prior art difficult in maintenance, simultaneously large to cabin restriction, causes the problem of space waste in fan engine room.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
Hoisting crane in a kind of wind power generating set, comprise the column being installed in wind generating set engine room, the secondary swing arm that is located at the master pendulum arm on column and is connected with master pendulum arm, the downside of described master pendulum arm and described secondary swing arm junction is provided with chain cover, and the free end of described secondary swing arm is provided with chain lifting device; Between described chain cover and described chain lifting device, be provided with chain conveyor.
Wherein, along the bearing of trend of described secondary swing arm, described chain lifting device is located at the free end of described secondary swing arm.
Be specifically as follows, described chain conveyor comprises: the first pulley, and described the first pulley is located at position, described junction, and is fixed in described master pendulum arm or described secondary swing arm; The second pulley, described the second pulley is located at described chain lifting device position, and is fixed in described secondary swing arm; Slide rail, described slide rail is located between described the first pulley and described the second pulley, and is fixed in described secondary swing arm; Described the first pulley and/or the second pulley are connected with actuating device.
Wherein, described actuating device is servomotor.
Preferably, described the first pulley, the second pulley are all positioned at described secondary swing arm lower end side; In described chain cover, the suspension hook of chain is walked around described the first pulley upper surface, described the second pulley lower surface and described chain lifting device successively.
Particularly, described slide rail is for holding the tubular structure of described chain.
Be specifically as follows, described slide rail is hollow circuit cylinder pipeline, the upper surface of the lower surface of described pipeline one end and described the first tangent setting in pulley upper surface, the described pipeline other end and described the second tangent setting in pulley lower surface.
When practical application, described master pendulum arm and secondary swing arm are metal material, and are hollow structure.
Wherein, in described chain lifting device, be provided with control setup, described control setup is for controlling pulling out or reclaiming of described chain.
In hoisting crane in the wind power generating set that the utility model embodiment provides, in wind power generating set (abbreviation blower fan) cabin, be fixed with column, on this column, be connected with master pendulum arm, on master pendulum arm, be connected with secondary swing arm, the downside of while in the junction of master pendulum arm and secondary swing arm is provided with the chain cover that takes up chain, and at the free end of secondary swing arm, end is provided with chain lifting device, between chain cover and chain lifting device, be provided with chain conveyor.Analyze thus known, when the blower fan hoisting crane that uses this enforcement to provide is safeguarded the parts in fan engine room, first by regulating the position of master pendulum arm and secondary swing arm, make chain lifting device be positioned at the top of weight, chain lifting device is controlled chain afterwards, by chain conveyor, the chain in chain cover is pulled out, thereby complete the adjusting of chain lifting length, even if the suspension hook of chain is connected with weight is stable, after this, by chain lifting device, chain has been reclaimed to slinging of weight.In this process, because chain cover is located at the position, junction of master pendulum arm and secondary swing arm, when the chain lifting device that is located at secondary swing arm end when use is sling weight, due to chain cover and weight away from, between weight and secondary swing arm without the need for the distance that is not less than chain cover height, the height of secondary swing arm can correspondingly be reduced to the height of an approximate chain cover, thereby greatly reduce the whole height of hoisting crane, be convenient to safeguard; After the crane height of blower fan reduces simultaneously, its limitations affect to cabin reduces, and has improved the design space in cabin, has avoided the waste in space in cabin.
Accompanying drawing explanation
Fig. 1 is the crane structure schematic diagram in the wind power generating set providing in prior art;
Crane structure schematic diagram in the wind power generating set that Fig. 2 provides for the utility model embodiment;
The chain conveyor structural representation that Fig. 3 provides for the utility model embodiment;
The schematic diagram when hoisting crane in the wind power generating set that Fig. 4 provides for the utility model embodiment is used.
The specific embodiment
Below in conjunction with accompanying drawing, the hoisting crane in the utility model embodiment wind power generating set is described in detail.
The utility model embodiment provides the hoisting crane in a kind of wind power generating set, as shown in Figure 2, comprise the column 21 being installed in wind generating set engine room, the secondary swing arm 23 that is located at the master pendulum arm 22 on column 21 and is connected with master pendulum arm 22, master pendulum arm 22 is provided with chain cover 24 with the downside of secondary swing arm 23 junctions, and the free end of secondary swing arm 23 is provided with chain lifting device 25; Between chain cover 24 and chain lifting device 25, be provided with chain conveyor 20.
In hoisting crane in the wind power generating set that the utility model embodiment provides, in wind power generating set (abbreviation blower fan) cabin, be fixed with column, on this column, be connected with master pendulum arm, on master pendulum arm, be connected with secondary swing arm, the downside of while in the junction of master pendulum arm and secondary swing arm is provided with the chain cover that takes up chain, and at the free end of secondary swing arm, end is provided with chain lifting device, between chain cover and chain lifting device, be provided with chain conveyor.Analyze thus known, when the blower fan hoisting crane that uses the present embodiment to provide is safeguarded the parts in fan engine room, first by regulating the position of master pendulum arm and secondary swing arm, make chain lifting device be positioned at the top of weight, chain lifting device is controlled chain afterwards, by chain conveyor, the chain in chain cover is pulled out, thereby complete the adjusting of chain lifting length, even if the suspension hook of chain is connected with weight is stable, after this, by chain lifting device, chain has been reclaimed to slinging of weight.In this process, because chain cover is located at the position, junction of master pendulum arm and secondary swing arm, when the chain lifting device that is located at secondary swing arm end when use is sling weight, due to chain cover and weight away from, between weight and secondary swing arm without the need for the distance that is not less than chain cover height, the height of secondary swing arm can correspondingly be reduced to the height of an approximate chain cover, thereby greatly reduce the whole height of hoisting crane, be convenient to safeguard; After the crane height of blower fan reduces simultaneously, its limitations affect to cabin reduces, and has improved the design space in cabin, has avoided the waste in space in cabin.
Wherein, for chain cover 24 being located to the junction position of master pendulum arm 22 with secondary swing arm 23, can effectively avoid the impact of chain cover 24 on weight lifting, but because chain lifting device 25 is for the weight of slinging, and chain lifting device 25 self has certain altitude, therefore, when the hoisting crane that uses the present embodiment to provide, when slinging weight with chain, also need to guarantee to there is the height that is not less than chain lifting device 25 between weight and secondary swing arm 23, Given this, as shown in Figure 2, chain lifting device 25 can be arranged on to its free end along the bearing of trend of secondary swing arm 23, the height of secondary swing arm can be reduced to the height (height of chain lifting device 25 is much smaller than the height of chain cover 24) of a chain cover, further reduced the whole height of hoisting crane, be convenient to easy to maintenance, the limitations affect in cabin is further reduced simultaneously, avoid the waste of cabin space.
This wherein, when chain lifting device 25 is arranged on its end along the bearing of trend of secondary swing arm 23, can be by the length reduction of former secondary swing arm 23, making the length of existing secondary swing arm 23 and the length summation of chain lifting device 25 is the length of former secondary swing arm 23.Particularly, the length of the existing secondary swing arm 23 that the length of former secondary swing arm 23 of take is L, the present embodiment is L ', the length of chain lifting device 25 is l, L=L '+l, thereby guaranteeing not affect, under the prerequisite of the maintenance span of hoisting crane (23 positions that can arrive of secondary swing arm), can to effectively reduce the cost of hoisting crane.
In Fig. 2, because chain cover 24 has been located at the junction of master pendulum arm 22 with secondary swing arm 23, therefore when the chain in chain cover 24 being pulled out or being reclaimed by chain lifting device 25, need to complete by chain conveyor 20, concrete chain conveyor 20 as shown in Figure 3, can include the first pulley 31 that is located at junction, this first pulley 31 can be fixed on master pendulum arm 22, also can be fixed in secondary swing arm 23, concrete fixed position is the connection mode with secondary swing arm 23 depending on master pendulum arm 22, so that be fixed as master.Chain conveyor 20 also comprises that the second pulley 32, the second pulleys 32 are located at chain lifting device 25 positions, and is preferably fixed in secondary swing arm 23; Between the first pulley 31 and the second pulley 32, be connected with slide rail 33, this slide rail 33 can be fixed in secondary swing arm 23.Wherein, the fixing of the first pulley 31 and the second pulley 32 can be that two pulleys are fixing dead, can not rotate, and two pulleys only play basic directional tagging, and chain only slides in two pulleys; Also the first pulley 31 and the second pulley 32 center can be fixed, thereby two pulleys can, around center rotating separately, when chain can be slided in two pulleys, can also, with the rotation campaign of pulley, be accelerated pulling out and reclaiming of chain.
Wherein, conventionally the first pulley 31, slide rail 33 and the second pulley 32 are located to the downside of secondary swing arm 23, thereby avoid the lifting of hoisting crane whole height, prevent the waste in space in cabin.
In addition, chain conveyor 20 is mainly used in the steady conveying of chain, guarantee the stationarity that chain is pulled out, reclaimed, therefore need to guarantee that chain does not exist relaxation between the first pulley 31 and the second pulley 32, in Fig. 3, the suspension hook of chain is walked around the upper surface of the first pulley 31, the lower surface of the second pulley 32 and chain lifting device 25 successively, and last suspension hook hangs down from chain lifting device 26.And in Fig. 3, slide rail 33 is mainly used in bearing support chain, therefore slide rail 33 can be arranged to hold the tubular structure of chain, such as hollow circuit cylinder pipeline, cuboid pipeline etc., and in order to facilitate chain in smooth and easy linking the between the first pulley 31 and slide rail 33, the second pulley 32 and slide rail 33, can make the lower surface of slide rail 33 one end and the first pulley 31 upper surfaces are tangent, the upper surface of slide rail 33 other ends and the lower surface of the second pulley 32 tangent, thereby the smoothness while having guaranteed that chain is pulled out, reclaimed.
Actual when the hoisting crane that uses the present embodiment to provide, because chain has certain deadweight, therefore when chain need to reclaim, chain is because deadweight meeting automatic fall-back is to chain cover, and the quick recovery for the ease of chain improves the speed that it is pulled out simultaneously, the first pulley 31 and/or the second pulley 32 can connecting drive devices, such as servomotor etc., thereby by the continuous rotation of the first pulley 31 and/or the second pulley 32, the extra power that provides chain to pull out, reclaim are provided.Wherein, for cost-saving, only the first pulley 31 connects servomotor.
Preferably, master pendulum arm 22 and secondary swing arm 23 can be metal material, and under the prerequisite of proof strength, in order to save material cost, master pendulum arm 22 and secondary swing arm 23 all can be made as to hollow structure.
Wherein, for chain lifting device 25, its inside is typically provided with control setup, so that control chain from pulling out in chain cover 24 or to the interior recovery of chain cover 24.
The working process of the hoisting crane of the wind power generating set of by Fig. 2 to Fig. 4, above-described embodiment being described is below described in detail.Wherein, Fig. 4 for use the present embodiment and describe wind power generating set hoisting heavy time schematic diagram, and the hoisting crane of blower fan is designated as 41 in Fig. 4, weight is designated as 42.
When staff safeguards the parts in fan engine room (weight 42), first by controlling the rotation of master pendulum arm 22 and secondary swing arm 23, make the chain lifting device of secondary swing arm 23 ends be positioned at the top of weight 42, by the control setup in chain lifting device 25, chain is pulled out in chain cover 24 afterwards, now chain slides along the first pulley 31, slide rail 33 and the second pulley 32 successively, thereby make suspension hook drop to appropriate location, then suspension hook is connected with weight 42 is stable.
After treating that suspension hook is connected with weight 42 is stable, by the control setup in chain lifting device 25, chain is reclaimed, being about to weight 42 slings, now chain is successively along the second pulley 32, slide rail 33 and the first pulley 31, and drop down onto next time in chain cover 24 in self gravitation effect, weight 42 is lifted simultaneously, finally, by controlling master pendulum arm 22 and secondary swing arm 23, the weight of slinging 42 is moved to the region of being convenient to maintenance.
In description of the present utility model, it will be appreciated that, term " " center ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
Term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can particular case understand the concrete meaning of above-mentioned term in the utility model.
In the description of this specification sheets, specific features, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
The above; it is only the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by the described protection domain with claim.
Claims (9)
1. the hoisting crane in a wind power generating set, comprise the column being installed in wind generating set engine room, the secondary swing arm that is located at the master pendulum arm on column and is connected with master pendulum arm, it is characterized in that, the downside of described master pendulum arm and described secondary swing arm junction is provided with chain cover, and the free end of described secondary swing arm is provided with chain lifting device;
Between described chain cover and described chain lifting device, be provided with chain conveyor.
2. the hoisting crane in wind power generating set according to claim 1, is characterized in that, along the bearing of trend of described secondary swing arm, described chain lifting device is located at the free end of described secondary swing arm.
3. the hoisting crane in wind power generating set according to claim 2, is characterized in that, described chain conveyor comprises:
The first pulley, described the first pulley is located at position, described junction, and is fixed in described master pendulum arm or described secondary swing arm;
The second pulley, described the second pulley is located at described chain lifting device position, and is fixed in described secondary swing arm;
Slide rail, described slide rail is located between described the first pulley and described the second pulley, and is fixed in described secondary swing arm;
Described the first pulley and/or the second pulley are connected with actuating device.
4. the hoisting crane in wind power generating set according to claim 3, is characterized in that, described actuating device is servomotor.
5. according to the hoisting crane in the wind power generating set described in claim 3 or 4, it is characterized in that, described the first pulley, the second pulley are all positioned at described secondary swing arm lower end side;
In described chain cover, the suspension hook of chain is walked around described the first pulley upper surface, described the second pulley lower surface and described chain lifting device successively.
6. the hoisting crane in wind power generating set according to claim 5, is characterized in that, described slide rail is for holding the tubular structure of described chain.
7. the hoisting crane in wind power generating set according to claim 6, it is characterized in that, described slide rail is hollow circuit cylinder pipeline, the upper surface of the lower surface of described pipeline one end and described the first tangent setting in pulley upper surface, the described pipeline other end and described the second tangent setting in pulley lower surface.
8. the hoisting crane in wind power generating set according to claim 1, is characterized in that, described master pendulum arm and secondary swing arm are metal material, and are hollow structure.
9. the hoisting crane in wind power generating set according to claim 1, is characterized in that, in described chain lifting device, is provided with control setup, and described control setup is for controlling pulling out or reclaiming of described chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119612.8U CN203754289U (en) | 2014-03-17 | 2014-03-17 | Crane in wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119612.8U CN203754289U (en) | 2014-03-17 | 2014-03-17 | Crane in wind turbine generator system |
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| Publication Number | Publication Date |
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| CN203754289U true CN203754289U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420119612.8U Expired - Lifetime CN203754289U (en) | 2014-03-17 | 2014-03-17 | Crane in wind turbine generator system |
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| CN (1) | CN203754289U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152035A (en) * | 2015-09-23 | 2015-12-16 | 哈尔滨工业大学 | Disassembly and assembly system for optical crystal components |
| CN105984812A (en) * | 2015-02-04 | 2016-10-05 | 上海优汉实业发展有限公司 | Mechanical assistance arm based on alternating-current servo control and control method of mechanical assistance arm |
| CN107487705A (en) * | 2017-08-24 | 2017-12-19 | 颜杰雄 | A kind of petroleum pipeline installs laying boom hoisting |
| CN113023584A (en) * | 2021-02-08 | 2021-06-25 | 浙江大学台州研究院 | Zero-gravity small crane |
-
2014
- 2014-03-17 CN CN201420119612.8U patent/CN203754289U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984812A (en) * | 2015-02-04 | 2016-10-05 | 上海优汉实业发展有限公司 | Mechanical assistance arm based on alternating-current servo control and control method of mechanical assistance arm |
| CN105984812B (en) * | 2015-02-04 | 2017-11-03 | 上海优汉实业发展有限公司 | The mechanical auxiliary arm of force and its control method based on AC Servo Control |
| CN105152035A (en) * | 2015-09-23 | 2015-12-16 | 哈尔滨工业大学 | Disassembly and assembly system for optical crystal components |
| CN107487705A (en) * | 2017-08-24 | 2017-12-19 | 颜杰雄 | A kind of petroleum pipeline installs laying boom hoisting |
| CN107487705B (en) * | 2017-08-24 | 2019-04-16 | 新昌县兴欧智能科技有限公司 | A kind of petroleum pipeline installation laying boom hoisting |
| CN113023584A (en) * | 2021-02-08 | 2021-06-25 | 浙江大学台州研究院 | Zero-gravity small crane |
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Granted publication date: 20140806 |