WO2018227919A1 - Special wind-power boom structure and crane - Google Patents

Special wind-power boom structure and crane Download PDF

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Publication number
WO2018227919A1
WO2018227919A1 PCT/CN2017/117574 CN2017117574W WO2018227919A1 WO 2018227919 A1 WO2018227919 A1 WO 2018227919A1 CN 2017117574 W CN2017117574 W CN 2017117574W WO 2018227919 A1 WO2018227919 A1 WO 2018227919A1
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WO
WIPO (PCT)
Prior art keywords
boom
pull plate
bracket
arm head
arm
Prior art date
Application number
PCT/CN2017/117574
Other languages
French (fr)
Chinese (zh)
Inventor
张正得
赵瑞学
陈志灿
付玉琴
史为杰
Original Assignee
徐州重型机械有限公司
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Publication date
Application filed by 徐州重型机械有限公司 filed Critical 徐州重型机械有限公司
Publication of WO2018227919A1 publication Critical patent/WO2018227919A1/en

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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
    • 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
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
    • 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
    • B66C23/42—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 with jibs of adjustable configuration, e.g. foldable
    • 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
    • B66C23/66—Outer or upper end constructions

Definitions

  • the present disclosure relates to the field of engineering machinery, and in particular to a boom structure and a crane for a wind power.
  • a super-lift structure which made the boom form a statically indeterminate structure plus a front-end cantilever structure, as shown in Figure 1.
  • the super-starting a1 is mounted on the arm frame a2 of the box-type main arm, and the rigidity of the arm frame can be increased by the cooperation of the wire ropes; the end of the front-end cantilever near the arm frame a2 is further provided with a bracket a3, through which the super-lifting wire rope can be added The force of the arm raises the super effect.
  • this type of construction does not meet the lifting requirements for larger lifting heights and larger tonnages.
  • the embodiments of the present disclosure propose a wind power special boom structure and a crane to meet the lifting requirements of a larger lifting height and a larger tonnage as much as possible.
  • a wind power dedicated boom structure including a main boom, an arm head, an over-lifting device, and a first connecting device, the arm head is connected to the main boom, and one end of the super-lifting device and the main boom The one end away from the arm head is connected, and the other end of the super-lifting device is connected with the end of the arm head away from the end of the main arm frame through the first connecting device, so that the overall structure of the wind power special arm frame is a statically indeterminate structure.
  • a bracket is further included, the bracket being coupled between the first connecting device and the main boom; or the bracket is coupled between the first connecting device and the arm.
  • the first connecting device comprises a pull plate structure
  • the pull plate structure comprises a multi-section pull plate
  • the adjacent two pull plates can be rotated relative to each other
  • one end of the bracket is connected to the arm head close to the main boom.
  • the other end of the bracket is coupled to the pull plate structure
  • the other end of the pull plate structure is coupled to an end of the arm head that is away from one end of the main boom.
  • the first attachment device further includes a wire rope for connecting the bracket and the super-lifting device and the super-lifting device and the main boom.
  • the pull plate structure comprises two sets, the two sets of pull plate structures are adjacent to each other at one end and relatively open to each other at the other end, and the maximum expanded width of the two sets of pull plate structures is greater than the cross-sectional width of the arm head.
  • the bracket comprises two sets, each set of brackets being coupled to a corresponding pull plate structure, each set of brackets comprising two rods, one end of which is connected to the pull plate structure, and the other end of the two rods They are respectively connected at different positions of the arm head so that the two rods and the arm head form a triangular support structure for the pull plate structure.
  • the second connecting device is further included, and the pull plate structure and the arm head and/or the pull plate structure and the bracket are connected by a second connecting device, and the second connecting device can make the pull plate structure relative to The arm head and/or the bracket rotate in at least two directions.
  • the second connecting device includes a connecting plate, and each of the two ends of the connecting plate is provided with a set of hinge points, and the hinge axes of the two sets of hinge points are perpendicular to each other.
  • the arm head has a bend to prevent the lifting weight from interfering with the main boom when the main boom is perpendicular to the ground.
  • a crane including the above-described wind power-specific boom structure is provided.
  • the present disclosure is provided with a first connecting device, and one end of the first connecting device is connected to an end of the arm head away from the end of the main boom, compared with the structure of the statically indeterminate structure plus the front cantilever in the related art.
  • the first connecting device of the present disclosure can form an ultra-static structure of the wind-powered special boom structure, the overall strength is higher, the overall stability of the boom structure is better, and the lifting performance is greatly improved.
  • FIG. 1 is a schematic structural view of a boom structure in the related art.
  • FIG. 2 is a schematic structural view of an embodiment of a wind power special arm frame structure according to the present disclosure.
  • FIG. 3 is a partial structural schematic view of an embodiment of a wind power special boom structure according to the present disclosure.
  • FIG. 4 is a schematic structural view of a second connecting device in an embodiment of a wind power special arm frame structure according to the present disclosure.
  • FIG. 5 is a schematic structural view of an embodiment of a wind power special arm frame structure in a folded state according to the present disclosure.
  • the crane design must maximize the weight of the vehicle, which means that the strength performance can not be improved only by increasing the specifications of the boom; and, for the 3.0WM fan
  • the overall stability of the boom is also extremely important.
  • the overall combination of the boom structure should be optimized, so that the force of the boom is more reasonable.
  • FIG. 2 is a schematic structural view of an embodiment of a wind power dedicated boom structure.
  • the wind power special arm frame structure includes a main boom 1, an arm head 2, a super-lifting device 3, and a first connecting device.
  • the arm head 2 is connected to the main boom 1, and one end of the super-lifting device 3 is connected to one end of the main boom 1 away from the arm head 2, and the other end of the super-lifting device 3 and the end of the arm head 2 away from the end of the main boom 1
  • the portions are connected by a first connecting device such that the overall structure of the wind power dedicated boom structure is a statically indeterminate structure.
  • the arm head 2 is connected to the top end of the main boom 1, and one end of the super-lifting device 3 is connected to the lower portion of the main boom 1, but not the bottom end, and the super-lifting device 3 can increase the stability of the boom structure. Improve lifting performance.
  • the wind power dedicated boom structure is provided with a first connecting device, and one end of the first connecting device is connected to an end of the arm head 2 away from the end of the main boom 1, that is, one end of the first connecting device is connected At the top end of the arm head 2, compared with the structure of the statically indeterminate structure plus the front end cantilever in the related art, the first connecting device can form the overall statically indeterminate structure of the wind power special arm frame structure, and the overall strength. Higher, the overall stability of the boom structure is better, and the lifting performance is greatly improved.
  • connection between the super-lifting device 3 and the top end of the arm head 2 can be directly connected by the first connecting device; the support for supporting the first connecting device can be provided on the arm head 2 or the main boom 1
  • the support structure may be disposed at the top end of the arm head 2, or at the end of the arm head 2 near the main boom 1, or may be disposed on the main boom 2, which may be determined according to actual conditions.
  • the wind power dedicated boom structure further comprises a bracket 5 connected as a support structure between the first connecting device and the main boom 1, or the bracket 5 is connected between the first connecting device and the arm head 2. That is, one end of the bracket 5 is connected to the first connecting device, the other end of the bracket 5 is connected to the main boom 1, or the other end of the bracket 5 is connected to the arm head 2.
  • the bracket 5 in addition to being able to support the first connecting means, it is also possible to increase the pulling force arm of the super-lifting device while preventing the first connecting means from interfering with the main boom 1 or the arm 2.
  • the height of the bracket 5 can be appropriately increased.
  • the height of the bracket 5 can be controlled from 8 m to 10 m, and the bracket in the related art is usually only 3 m to 5 m. Appropriately increasing the height of the bracket 5 is advantageous for raising the tension of the boom structure. l performance.
  • bracket 5 and the arm head 2 are hingedly connected, so that when the field is changed, as shown in FIG. 5, the bracket 5 can be flattened on the boom structure, and the whole boom can be pulled by the super-wire rope and the cylinder Pushing the whole and flipping it over to the whole upper part to reduce the height of the whole vehicle, facilitate transportation and improve work efficiency.
  • the specific structural form is relatively flexible, for example, it can be a steel wire rope, or a combined structure of a steel wire rope and other connecting structures.
  • the first connecting device comprises a pull plate structure 6, and the pull plate structure 6 comprises a multi-section pull plate, and the adjacent two-section pull plates can rotate relative to each other, so that The pull plate structure 6 is conveniently contracted and folded when in a non-working state, and is convenient for transfer transportation.
  • one end of the bracket 5 is connected to one end of the arm head 2 near the main boom 1, and the other end of the bracket 5 is connected with the pull plate structure 6.
  • the other end of the pull plate structure 6 and the arm end 2 are away from the main boom. The end of one end is connected.
  • the pull plate structure 6 has greater tensile strength and higher reliability.
  • the first connecting device further comprises a wire rope 4 for connecting the bracket 5 and the super-lifting device 3 and the super-lifting device 3 and the main boom 1. As shown in FIG. 2, a wire rope 4 is connected between the bracket 5 and the super-lifting device 3, and a wire rope 4 is also connected between the super-lifting device 3 and the bottommost end of the main boom 1.
  • the pull plate structure 6 includes two groups, such as a first pull plate group 61 and a second pull plate group 62.
  • the two pull plate structures 6 are close to each other at one end and are unfolded relative to each other at the other end.
  • the maximum expanded width of the panel structure 6 is greater than the cross-sectional width of the arm head 2.
  • the maximum unfolding width here refers to the width of the opening between the ends of the two sets of tab structures 6.
  • a certain angle is formed between the two sets of pull plate structures 6, which can improve the lateral tension of the boom structure and improve the lateral strength of the boom structure.
  • the angle between the two sets of pull plate structures 6 is optionally 50° to 90°.
  • the bracket 5 may also comprise two groups, such as a first bracket group 51 and a second bracket group 52, each group bracket 5 being connected with a corresponding pull plate structure 6, that is, the first pull plate group 61 and the first bracket group 51.
  • the second pull plate group 62 is connected to the second bracket group 52 to support the first pull plate group 61 through the first bracket group 51 and the second pull plate group 62 through the second bracket group 52.
  • Each set of brackets 5 includes two rods, such as a first bracket set 51 including a first rod member 511 and a second rod member 512, and the second bracket group 52 includes a third rod member 521 and a fourth rod member 522, two rods One end of the piece is connected with the pull plate structure 6, and the other ends of the two rods are respectively connected at different positions of the arm head 2, and a certain angle is formed between the two rods so that the two rods and the arm head 2 are paired
  • the pull plate structure 6 forms a triangular support structure. This support structure is more stable.
  • the two sets of brackets 5 are also opened at a certain angle to disperse the super-lifting force to form a more stable boom structure, and the connection between the two sets of pull-plate structures 6 and the two sets of brackets 5 can also be formed. Triangular structure, good stability.
  • the wind power special arm frame structure may further comprise a second connecting device 7, and the pull plate structure 6 is connected to the arm head 2 and the bracket 5 through the second connecting device 7, in particular, the pull plate structure 6 Between the arm head 2 and/or the pull plate structure 6 and the bracket 5 is connected by a second connecting device 7, by means of which the pull plate structure 6 can be moved relative to the arm head 2 and/or the bracket 5, respectively. Rotate in at least two directions.
  • the pull plate structure 6 When the pull plate structure 6 and the arm head 2 are connected by the second connecting device 7, the pull plate structure 6 can be rotated in at least two directions with respect to the arm head 2; when the pull plate structure 6 and the bracket 5 pass the second When the connecting device 7 is connected, the pull plate structure 6 is rotatable in at least two directions with respect to the bracket 5.
  • at least two directions include a direction perpendicular to a plane in which the pull plate structure 6 is located and a direction perpendicular to a central axis of the pull plate structure 6 in a plane of the pull plate structure 6 to ensure that the pull plate structure 6 is subjected to a simple pulling force. Reduce friction and increase the service life of the pull plate structure 6.
  • the pull plate structure 6 and the arm head 2 are connected by a second connecting device, and the pull plate structure 6 and the bracket 5 can also be connected by a second connecting device, so that the pull plate structure 6 can be along at least two with respect to the arm head 2.
  • the direction of rotation of the pull plate structure 6 relative to the bracket 5 can also be rotated in at least two directions, so as to eliminate the influence of the bending moment, and ensure that the pull plate structure 6 only bears the tensile force, so that the pull plate structure 6 and the arm head 2 or the bracket 5
  • the force at the connection is more reasonable and reduces safety hazards.
  • the second connecting device 7 includes a connecting plate, and each of the two ends of the connecting plate is provided with a set of hinge points, and the hinge axes of the two sets of hinge points are perpendicular to each other.
  • the second connecting device 7 includes a first connecting plate 74 and a second connecting plate 75, and the first connecting plate 74 and the second connecting plate 75 are perpendicularly cross-connected to each other.
  • the end of the first connecting plate 74 is provided with a second hinge hole 72 which is aligned with the hinge hole on the last pull plate 73 to form a hinge point capable of connecting the pull plate structure 6 with the first connecting plate 74.
  • the hinge shaft in the hinge point is horizontally disposed; the end of the second connecting plate 75 is provided with a first hinge hole 71, and the first hinge hole 71 is aligned with the hinge hole on the arm joint plate 76 to form a second a hinge point connecting the connecting plate 75 with the arm head 2, and the hinge shaft in the hinge point is vertically disposed, so that the pull plate structure 6 can swing left and right around the hinge shaft of the first hinge hole 71 with respect to the arm head 2, It can swing up and down with respect to the arm shaft 2 about the hinge axis in the second hinge hole 72, which is beneficial to eliminate the influence of the bending moment and overcome the stress concentration problem caused by the angle between the pull plate structure 6 and the arm head 2, so as to pull
  • the plate structure 6 can only withstand the pulling force, optimize the stress situation and reduce the safety hazard.
  • the arm head 2 has a bend to prevent the lifting weight from interfering with the main boom 1 when the main boom 1 is perpendicular to the ground, so that the main boom 1 can be lifted to roughly the ground.
  • the vertical position increases the height of the weight.
  • the boom structure in the related art as shown in FIG. 1 can only raise the main arm to a position at an angle of about 85° to the ground, and the lifting height is limited.
  • Both the main boom 1 and/or the arm head 2 can be configured as a truss boom structure, and the boom of this structure can reduce the overall weight of the boom as much as possible while ensuring sufficient structural strength.
  • the arm head 2 includes four basic booms, and each adjacent basic boom is connected by a connection assembly.
  • the first basic arm frame connected to the main boom 1 is short and convenient for connection; the second basic arm frame connected to the first basic arm frame is longer to increase the overall length of the boom; and the second section
  • the basic arm of the basic boom is connected to the third basic arm frame and forms an angle with the second basic arm frame, so that the arm head 2 integrally forms a bent structure; and the fourth basic base frame is connected with the fourth arm.
  • the basic boom is also relatively long, and the top of the fourth basic boom is provided with a pulley block for lifting weight.
  • the present disclosure also proposes a crane including the above-described wind power dedicated boom structure.
  • the positive effects of the wind power special boom structure in the above various embodiments are also applicable to the crane, and will not be described herein.
  • wind power special arm frame structure and the crane have at least one or more of the following advantages:
  • the ultra-static structure of the boom is optimized to the overall statically indeterminate structure of the boom, taking into account the performance improvement and the weight reduction of the whole vehicle, the overall strength is higher, and the overall stability of the boom is better.
  • the lifting performance has been greatly improved, so that the boom can meet the lifting operation requirements of fans above 3.0WM;
  • the two bracket groups are deployed left and right.
  • the deployment width of the two bracket groups is much larger than the cross-section width of the boom frame, which greatly enhances the effect of the super-lifting force on the lateral stability of the boom and improves the lateral strength of the boom.
  • connection structure of the connecting bracket and the arm head By setting the connection structure of the connecting bracket and the arm head, the load component of most of the load in the direction perpendicular to the arm head is shared, so that the arm head mainly bears the positive pressure along the axial direction, without increasing the structural specifications of the arm frame. Under the premise, the strength performance of the boom structure is greatly increased.

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  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

Disclosed are a special wind-power boom structure and a crane. The boom structure comprises a main boom (1), a boom head (2), a super-lift device (3), and a first connecting device, wherein the boom head (2) is connected to the main boom (1); one end of the super-lift device (3) is connected to one end, away from the boom head (2), of the main boom (1); and the other end of the super-lift device (3) is connected to an end part of one end, away from the main boom (1), of the boom head (2) by means of the first connecting device so as to enable the entirety of the special wind-power boom structure to be a hyperstatic structure. Therefore, the overall strength of the special wind-power boom structure is increased, the overall stability of the boom structure is better, and the lifting performance is greatly improved.

Description

风电专用臂架结构及起重机Wind power special boom structure and crane
本申请是以CN申请号为201710436781.2，申请日为2017年6月12日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。The present application is based on the application of the US Application No. 201710436781.2, filed on June 12, 2017, and the priority of which is hereby incorporated by reference.
技术领域Technical field
本公开涉及工程机械技术领域，尤其涉及一种风电专用臂架结构及起重机。The present disclosure relates to the field of engineering machinery, and in particular to a boom structure and a crane for a wind power.
背景技术Background technique
目前市场上，超大吨位起重机所从事的主要吊装工作为风机的安装，随着风电市场的发展，市场上出现了3.0WM及以上的风机，这种数量级的风机对安装提出了更高的要求。大型风机的吊装不仅重量比小功率风机大，而且对于起升高度的要求也大大增加，因此需要对传统的臂架形式进行整体优化，以提升整车性能，同时还需要满足整车重量轻、便于长途运输和短途转场等要求。At present, the main hoisting work of super-tonnage cranes is the installation of wind turbines. With the development of the wind power market, there are 3.0WM and above fans on the market. This type of wind turbines puts higher requirements on installation. The hoisting of large wind turbines is not only heavier than small power fans, but also greatly increases the requirements for lifting height. Therefore, it is necessary to optimize the traditional boom form to improve the performance of the whole vehicle, and also need to meet the light weight of the whole vehicle. Easy to transport long distances and short-distance transitions.
在早期，为提升臂架的整体稳定性，业内普遍推出了超起结构，使臂架形成超静定结构加前端悬臂结构的形式，如图1所示。超起a1安装在箱型主臂的臂架a2上，配合钢丝绳共同作用，可以增加臂架的刚度；前端悬臂靠近臂架a2的一端还设有支架a3，通过该支架a3可以增加超起钢丝绳的作用力臂，提升超起作用。但是，发明人发现这种结构形式并不能满足更大起升高度和更大吨位的吊装需求。In the early stage, in order to improve the overall stability of the boom, the industry generally introduced a super-lift structure, which made the boom form a statically indeterminate structure plus a front-end cantilever structure, as shown in Figure 1. The super-starting a1 is mounted on the arm frame a2 of the box-type main arm, and the rigidity of the arm frame can be increased by the cooperation of the wire ropes; the end of the front-end cantilever near the arm frame a2 is further provided with a bracket a3, through which the super-lifting wire rope can be added The force of the arm raises the super effect. However, the inventors have found that this type of construction does not meet the lifting requirements for larger lifting heights and larger tonnages.
需要说明的是，公开于本公开背景技术部分的信息仅仅旨在增加对本公开的总体背景的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。It should be noted that the information disclosed in the Background of the Disclosure is merely intended to increase the understanding of the general background of the disclosure, and should not be construed as an admission or in any form suggesting that the information constitutes well known to those skilled in the art. current technology.
发明内容Summary of the invention
本公开实施例提出一种风电专用臂架结构及起重机，以尽可能地满足更大起升高度和更大吨位的吊装需求。The embodiments of the present disclosure propose a wind power special boom structure and a crane to meet the lifting requirements of a larger lifting height and a larger tonnage as much as possible.
根据本公开的一个方面，提供一种风电专用臂架结构，包括主臂架、臂头、超起装置和第一连接装置，臂头与主臂架连接，超起装置的一端与主臂架的远离臂头的一端连接，超起装置的另一端与臂头的远离主臂架一端的端部之间通过第一连接装置连接，以使风电专用臂架结构的整体为超静定结构。According to an aspect of the present disclosure, a wind power dedicated boom structure is provided, including a main boom, an arm head, an over-lifting device, and a first connecting device, the arm head is connected to the main boom, and one end of the super-lifting device and the main boom The one end away from the arm head is connected, and the other end of the super-lifting device is connected with the end of the arm head away from the end of the main arm frame through the first connecting device, so that the overall structure of the wind power special arm frame is a statically indeterminate structure.
在一个实施例中，还包括支架，支架连接在第一连接装置与主臂架之间；或者，支架连接在第一连接装置与臂头之间。In one embodiment, a bracket is further included, the bracket being coupled between the first connecting device and the main boom; or the bracket is coupled between the first connecting device and the arm.
在一个实施例中，第一连接装置包括拉板结构，拉板结构包括多节拉板，相邻两节拉板之间能够相对彼此转动，支架的一端连接在臂头的靠近主臂架的一端，支架的另一端与拉板结构连接，拉板结构的另一端与臂头的远离主臂架一端的端部连接。In one embodiment, the first connecting device comprises a pull plate structure, the pull plate structure comprises a multi-section pull plate, the adjacent two pull plates can be rotated relative to each other, and one end of the bracket is connected to the arm head close to the main boom. At one end, the other end of the bracket is coupled to the pull plate structure, and the other end of the pull plate structure is coupled to an end of the arm head that is away from one end of the main boom.
在一个实施例中，第一连接装置还包括钢丝绳，钢丝绳用于连接支架与超起装置以及超起装置与主臂架。In one embodiment, the first attachment device further includes a wire rope for connecting the bracket and the super-lifting device and the super-lifting device and the main boom.
在一个实施例中，拉板结构包括两组，两组拉板结构在一端相互靠近并在另一端相对彼此展开，两组拉板结构的最大展开宽度大于臂头的截面宽度。In one embodiment, the pull plate structure comprises two sets, the two sets of pull plate structures are adjacent to each other at one end and relatively open to each other at the other end, and the maximum expanded width of the two sets of pull plate structures is greater than the cross-sectional width of the arm head.
在一个实施例中，支架包括两组，每组支架与对应的拉板结构连接，每组支架包括两个杆件，两个杆件的一端与拉板结构连接，两个杆件的另一端分别连接在臂头的不同位置，以使两个杆件和臂头对拉板结构形成三角形支撑结构。In one embodiment, the bracket comprises two sets, each set of brackets being coupled to a corresponding pull plate structure, each set of brackets comprising two rods, one end of which is connected to the pull plate structure, and the other end of the two rods They are respectively connected at different positions of the arm head so that the two rods and the arm head form a triangular support structure for the pull plate structure.
在一个实施例中，还包括第二连接装置，拉板结构与臂头之间和/或拉板结构与支架之间通过第二连接装置连接，通过第二连接装置能够使拉板结构相对于臂头和/或支架沿至少两个方向转动。In one embodiment, the second connecting device is further included, and the pull plate structure and the arm head and/or the pull plate structure and the bracket are connected by a second connecting device, and the second connecting device can make the pull plate structure relative to The arm head and/or the bracket rotate in at least two directions.
在一个实施例中，第二连接装置包括连接板，连接板的两端各设有一组铰接点，两组铰接点的铰接轴相互垂直。In one embodiment, the second connecting device includes a connecting plate, and each of the two ends of the connecting plate is provided with a set of hinge points, and the hinge axes of the two sets of hinge points are perpendicular to each other.
在一个实施例中，臂头具有折弯，以在主臂架垂直于地面时防止吊起重物与主臂架发生干涉。In one embodiment, the arm head has a bend to prevent the lifting weight from interfering with the main boom when the main boom is perpendicular to the ground.
根据本公开的另一个方面，提供一种起重机，包括上述的风电专用臂架结构。According to another aspect of the present disclosure, a crane including the above-described wind power-specific boom structure is provided.
基于上述技术方案，本公开设有第一连接装置，并且第一连接装置的一端连接在臂头的远离主臂架的一端的端部，相比于相关技术中超静定结构加前端悬臂的结构，本公开通过第一连接装置可以使风得电专用臂架结构的整体形成超静定结构，整体强度更高，臂架结构整体的稳定性更好，起升性能得到大幅提升。Based on the above technical solution, the present disclosure is provided with a first connecting device, and one end of the first connecting device is connected to an end of the arm head away from the end of the main boom, compared with the structure of the statically indeterminate structure plus the front cantilever in the related art. The first connecting device of the present disclosure can form an ultra-static structure of the wind-powered special boom structure, the overall strength is higher, the overall stability of the boom structure is better, and the lifting performance is greatly improved.
通过以下参照附图对本公开的示例性实施例的详细描述，本公开的其它特征及其优点将会变得清楚。Other features of the present disclosure and its advantages will be apparent from the following detailed description of exemplary embodiments.
附图说明DRAWINGS
为了更清楚地说明本公开实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅 是本公开的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。In order to more clearly explain the technical solutions in the embodiments of the present disclosure or the related art, the drawings to be used in the embodiments or the related art description will be briefly described below. Obviously, the drawings in the following description are only The disclosed embodiments may also, for those of ordinary skill in the art, obtain other figures in accordance with the drawings provided without the inventive effort.
图1为相关技术中臂架结构的结构示意图。FIG. 1 is a schematic structural view of a boom structure in the related art.
图2为本公开风电专用臂架结构一个实施例的结构示意图。FIG. 2 is a schematic structural view of an embodiment of a wind power special arm frame structure according to the present disclosure.
图3为本公开风电专用臂架结构一个实施例的局部结构示意图。FIG. 3 is a partial structural schematic view of an embodiment of a wind power special boom structure according to the present disclosure.
图4为本公开风电专用臂架结构一个实施例中第二连接装置的结构示意图。FIG. 4 is a schematic structural view of a second connecting device in an embodiment of a wind power special arm frame structure according to the present disclosure.
图5为本公开风电专用臂架结构一个实施例处于折叠状态的结构示意图。FIG. 5 is a schematic structural view of an embodiment of a wind power special arm frame structure in a folded state according to the present disclosure.
具体实施方式detailed description
下面将结合本公开实施例中的附图，对实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本公开的一部分实施例，而不是全部的实施例。基于本公开的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。The technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. It is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.
在本公开的描述中，需要理解的是，术语“中心”、“横向”、“纵向”、“前”、“后”、“左”、“右”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开保护范围的限制。In the description of the present disclosure, it is to be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "upper", "lower", " The orientation or positional relationship of the indications of "upright", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present disclosure and The simplification of the description is not intended to be a limitation or limitation of the scope of the disclosure.
对于相关臂架结构不能满足更大起升高度和更大吨位吊装需求的问题，发明人经过长期的观察和仔细的研究后发现，3.0WM及以上风机的吊装对起重机的性能要求相比以前大幅提高，同时受制于长途运输和转场方便性，起重机设计必须最大化的优化整车自重，这就意味着不能只通过增加臂架的规格来实现强度性能的提升；而且，对于3.0WM风机的大高度、大起重量需求设计的超长臂来说，臂架整体的稳定性提升也极为重要。对此，针对3.0WM及以上风机的安装，要对臂架结构进行整体组合形式的优化，使臂架受力更合理。After long-term observation and careful research, the inventors found that the performance requirements of the cranes of 3.0WM and above are significantly greater than those of the previous cranes. Improve, and subject to the convenience of long-distance transportation and transition, the crane design must maximize the weight of the vehicle, which means that the strength performance can not be improved only by increasing the specifications of the boom; and, for the 3.0WM fan For the ultra-long arm designed for large height and heavy lifting demand, the overall stability of the boom is also extremely important. In this regard, for the installation of the 3.0WM and above fans, the overall combination of the boom structure should be optimized, so that the force of the boom is more reasonable.
基于以上思路，结合风电专用臂架结构的自身特点，发明人提出一种改进的风电专用臂架结构。Based on the above ideas, combined with the characteristics of the special boom structure of wind power, the inventor proposed an improved wind power special boom structure.
如图2所示，为风电专用臂架结构一个实施例的结构示意图，在该实施例中，风电专用臂架结构包括主臂架1、臂头2、超起装置3和第一连接装置，臂头2与主臂架1连接，超起装置3的一端与主臂架1的远离臂头2的一端连接，超起装置3的另 一端与臂头2的远离主臂架1一端的端部之间通过第一连接装置连接，以使风电专用臂架结构的整体为超静定结构。FIG. 2 is a schematic structural view of an embodiment of a wind power dedicated boom structure. In this embodiment, the wind power special arm frame structure includes a main boom 1, an arm head 2, a super-lifting device 3, and a first connecting device. The arm head 2 is connected to the main boom 1, and one end of the super-lifting device 3 is connected to one end of the main boom 1 away from the arm head 2, and the other end of the super-lifting device 3 and the end of the arm head 2 away from the end of the main boom 1 The portions are connected by a first connecting device such that the overall structure of the wind power dedicated boom structure is a statically indeterminate structure.
具体来说，臂头2连接在主臂架1的顶端，超起装置3的一端连接在主臂架1的下部，但不是最底端，超起装置3可以增加臂架结构的稳定性，提高起升性能。Specifically, the arm head 2 is connected to the top end of the main boom 1, and one end of the super-lifting device 3 is connected to the lower portion of the main boom 1, but not the bottom end, and the super-lifting device 3 can increase the stability of the boom structure. Improve lifting performance.
在上述实施例中，风电专用臂架结构设有第一连接装置，并且第一连接装置的一端连接在臂头2的远离主臂架1的一端的端部，即第一连接装置的一端连接在臂头2的最顶端，相比于相关技术中超静定结构加前端悬臂的结构，该实施例通过第一连接装置可以使风得电专用臂架结构的整体形成超静定结构，整体强度更高，臂架结构整体的稳定性更好，起升性能得到大幅提升。In the above embodiment, the wind power dedicated boom structure is provided with a first connecting device, and one end of the first connecting device is connected to an end of the arm head 2 away from the end of the main boom 1, that is, one end of the first connecting device is connected At the top end of the arm head 2, compared with the structure of the statically indeterminate structure plus the front end cantilever in the related art, the first connecting device can form the overall statically indeterminate structure of the wind power special arm frame structure, and the overall strength. Higher, the overall stability of the boom structure is better, and the lifting performance is greatly improved.
在上述实施例中，超起装置3与臂头2的最顶端之间可以直接通过第一连接装置进行连接；在臂头2或主臂架1上可以设置用于支撑第一连接装置的支撑结构，该支撑结构可以设置在臂头2的最顶端，也可以设置在臂头2靠近主臂架1的一端，还可以设置在主臂架2上，具体可以根据实际情况而定。In the above embodiment, the connection between the super-lifting device 3 and the top end of the arm head 2 can be directly connected by the first connecting device; the support for supporting the first connecting device can be provided on the arm head 2 or the main boom 1 The support structure may be disposed at the top end of the arm head 2, or at the end of the arm head 2 near the main boom 1, or may be disposed on the main boom 2, which may be determined according to actual conditions.
可选地，风电专用臂架结构还包括支架5，支架5作为支撑结构连接在第一连接装置与主臂架1之间，或者支架5连接在第一连接装置与臂头2之间。即，支架5的一端与第一连接装置连接，支架5的另一端与主臂架1连接，或者支架5的另一端与臂头2连接。Optionally, the wind power dedicated boom structure further comprises a bracket 5 connected as a support structure between the first connecting device and the main boom 1, or the bracket 5 is connected between the first connecting device and the arm head 2. That is, one end of the bracket 5 is connected to the first connecting device, the other end of the bracket 5 is connected to the main boom 1, or the other end of the bracket 5 is connected to the arm head 2.
通过设置支架5，除了能够对第一连接装置形成支撑作用之外，还可以增大超起装置的拉力力臂，同时防止第一连接装置与主臂架1或臂头2发生干涉。支架5的高度可以适当增加，比如支架5的高度可以控制在8m～10m，而相关技术中的支架通常只有3m～5m，适当增加支架5的高度有利于提升超起拉力对臂架结构的起升性能。By providing the bracket 5, in addition to being able to support the first connecting means, it is also possible to increase the pulling force arm of the super-lifting device while preventing the first connecting means from interfering with the main boom 1 or the arm 2. The height of the bracket 5 can be appropriately increased. For example, the height of the bracket 5 can be controlled from 8 m to 10 m, and the bracket in the related art is usually only 3 m to 5 m. Appropriately increasing the height of the bracket 5 is advantageous for raising the tension of the boom structure. l performance.
支架5与臂头2之间可选地为铰接连接，这样在转场时，如图5所示，支架5可以趴平在臂架结构上，臂架整体可以通过超起钢丝绳拉拽和油缸顶推，整体翻转到整体上部，以降低整车高度，方便运输，提高作业效率。Optionally, the bracket 5 and the arm head 2 are hingedly connected, so that when the field is changed, as shown in FIG. 5, the bracket 5 can be flattened on the boom structure, and the whole boom can be pulled by the super-wire rope and the cylinder Pushing the whole and flipping it over to the whole upper part to reduce the height of the whole vehicle, facilitate transportation and improve work efficiency.
对于第一连接装置，其具体的结构形式比较灵活，比如可以为钢丝绳，也可以为钢丝绳与其他连接结构的组合结构等。For the first connecting device, the specific structural form is relatively flexible, for example, it can be a steel wire rope, or a combined structure of a steel wire rope and other connecting structures.
在本公开风电专用臂架结构的一个优选实施例中，第一连接装置包括拉板结构6，拉板结构6包括多节拉板，相邻两节拉板之间能够相对彼此转动，这样可以使得拉板结构6在处于非工作状态时方便收缩、折叠起来，方便转场运输。In a preferred embodiment of the wind power-specific boom structure of the present disclosure, the first connecting device comprises a pull plate structure 6, and the pull plate structure 6 comprises a multi-section pull plate, and the adjacent two-section pull plates can rotate relative to each other, so that The pull plate structure 6 is conveniently contracted and folded when in a non-working state, and is convenient for transfer transportation.
可选地，支架5的一端连接在臂头2的靠近主臂架1的一端，支架5的另一端与 拉板结构6连接，拉板结构6的另一端与臂头2的远离主臂架1一端的端部连接。拉板结构6承受拉力的强度更大，可靠性更高。Optionally, one end of the bracket 5 is connected to one end of the arm head 2 near the main boom 1, and the other end of the bracket 5 is connected with the pull plate structure 6. The other end of the pull plate structure 6 and the arm end 2 are away from the main boom. The end of one end is connected. The pull plate structure 6 has greater tensile strength and higher reliability.
进一步地，第一连接装置还包括钢丝绳4，钢丝绳4用于连接支架5与超起装置3以及超起装置3与主臂架1。如图2所示，支架5与超起装置3之间连接有钢丝绳4，超起装置3与主臂架1的最底端之间也连接有钢丝绳4。Further, the first connecting device further comprises a wire rope 4 for connecting the bracket 5 and the super-lifting device 3 and the super-lifting device 3 and the main boom 1. As shown in FIG. 2, a wire rope 4 is connected between the bracket 5 and the super-lifting device 3, and a wire rope 4 is also connected between the super-lifting device 3 and the bottommost end of the main boom 1.
如图3所示，拉板结构6包括两组，如第一拉板组61和第二拉板组62，两组拉板结构6在一端相互靠近并在另一端相对彼此展开，两组拉板结构6的最大展开宽度大于臂头2的截面宽度。这里的最大展开宽度指的是两组拉板结构6的末端之间所张开的宽度。这样，两组拉板结构6之间形成一定的夹角，可以提升超起拉力对臂架结构侧向稳定性的作用，提高臂架结构的侧向强度。其中，两组拉板结构6之间的夹角大小可选地为50°～90°。As shown in FIG. 3, the pull plate structure 6 includes two groups, such as a first pull plate group 61 and a second pull plate group 62. The two pull plate structures 6 are close to each other at one end and are unfolded relative to each other at the other end. The maximum expanded width of the panel structure 6 is greater than the cross-sectional width of the arm head 2. The maximum unfolding width here refers to the width of the opening between the ends of the two sets of tab structures 6. Thus, a certain angle is formed between the two sets of pull plate structures 6, which can improve the lateral tension of the boom structure and improve the lateral strength of the boom structure. The angle between the two sets of pull plate structures 6 is optionally 50° to 90°.
相应地，支架5也可以包括两组，如第一支架组51和第二支架组52，每组支架5与对应的拉板结构6连接，即第一拉板组61与第一支架组51连接，第二拉板组62与第二支架组52连接，以通过第一支架组51对第一拉板组61进行支撑，通过第二支架组52对第二拉板组62进行支撑。Correspondingly, the bracket 5 may also comprise two groups, such as a first bracket group 51 and a second bracket group 52, each group bracket 5 being connected with a corresponding pull plate structure 6, that is, the first pull plate group 61 and the first bracket group 51. The second pull plate group 62 is connected to the second bracket group 52 to support the first pull plate group 61 through the first bracket group 51 and the second pull plate group 62 through the second bracket group 52.
每组支架5包括两个杆件，如第一支架组51包括第一杆件511和第二杆件512，第二支架组52包括第三杆件521和第四杆件522，两个杆件的一端与拉板结构6连接，两个杆件的另一端分别连接在臂头2的不同位置，两个杆件之间形成一定的夹角，以使两个杆件和臂头2对拉板结构6形成三角形支撑结构。这种支撑结构的稳定性更好。Each set of brackets 5 includes two rods, such as a first bracket set 51 including a first rod member 511 and a second rod member 512, and the second bracket group 52 includes a third rod member 521 and a fourth rod member 522, two rods One end of the piece is connected with the pull plate structure 6, and the other ends of the two rods are respectively connected at different positions of the arm head 2, and a certain angle is formed between the two rods so that the two rods and the arm head 2 are paired The pull plate structure 6 forms a triangular support structure. This support structure is more stable.
另外，两组支架5之间也张开一定的角度，以分散超起拉力，形成更加稳定的臂架结构，两组拉板结构6之间的连线与两组支架5之间也可以形成三角形结构，稳定性好。In addition, the two sets of brackets 5 are also opened at a certain angle to disperse the super-lifting force to form a more stable boom structure, and the connection between the two sets of pull-plate structures 6 and the two sets of brackets 5 can also be formed. Triangular structure, good stability.
由于支架5存在向两侧的展开角度，因此两侧的拉板结构6与臂头2的延伸方向不平行，在吊重时容易产生局部挤压扭曲应力，存在安全隐患。为保证拉板结构6承受单纯拉力，风电专用臂架结构还可以包括第二连接装置7，拉板结构6通过第二连接装置7与臂头2和支架5连接，具体地，拉板结构6与臂头2之间和/或拉板结构6与支架5之间通过第二连接装置7连接，通过第二连接装置7能够使拉板结构6分别相对于臂头2和/或支架5沿至少两个方向转动。当拉板结构6与臂头2之间通过第二连接装置7连接时，拉板结构6能够相对于臂头2沿至少两个方向转动；当拉板结构6与支架5之间通过第二连接装置7连接时，拉板结构6能够相对于支架5沿至少 两个方向转动。可选地，至少两个方向包括与拉板结构6所在平面垂直的方向和在拉板结构6所在平面内与拉板结构6的中轴线垂直的方向，以保证拉板结构6承受单纯拉力，减少摩擦，提高拉板结构6的使用寿命。Since the bracket 5 has a deployment angle to both sides, the tension plate structure 6 on both sides is not parallel to the extending direction of the arm head 2, and local pressing and twisting stress is easily generated when hoisting, which poses a safety hazard. In order to ensure that the pull plate structure 6 is subjected to a simple pulling force, the wind power special arm frame structure may further comprise a second connecting device 7, and the pull plate structure 6 is connected to the arm head 2 and the bracket 5 through the second connecting device 7, in particular, the pull plate structure 6 Between the arm head 2 and/or the pull plate structure 6 and the bracket 5 is connected by a second connecting device 7, by means of which the pull plate structure 6 can be moved relative to the arm head 2 and/or the bracket 5, respectively. Rotate in at least two directions. When the pull plate structure 6 and the arm head 2 are connected by the second connecting device 7, the pull plate structure 6 can be rotated in at least two directions with respect to the arm head 2; when the pull plate structure 6 and the bracket 5 pass the second When the connecting device 7 is connected, the pull plate structure 6 is rotatable in at least two directions with respect to the bracket 5. Optionally, at least two directions include a direction perpendicular to a plane in which the pull plate structure 6 is located and a direction perpendicular to a central axis of the pull plate structure 6 in a plane of the pull plate structure 6 to ensure that the pull plate structure 6 is subjected to a simple pulling force. Reduce friction and increase the service life of the pull plate structure 6.
拉板结构6与臂头2之间通过第二连接装置连接，拉板结构6与支架5之间也可以通过第二连接装置连接，以使得拉板结构6能够相对于臂头2沿至少两个方向转动，使得拉板结构6相对于支架5也可以沿至少两个方向转动，这样可以消除弯矩影响，保证拉板结构6只承受拉力，使拉板结构6与臂头2或支架5之间连接处的受力更加合理，降低安全隐患。The pull plate structure 6 and the arm head 2 are connected by a second connecting device, and the pull plate structure 6 and the bracket 5 can also be connected by a second connecting device, so that the pull plate structure 6 can be along at least two with respect to the arm head 2. The direction of rotation of the pull plate structure 6 relative to the bracket 5 can also be rotated in at least two directions, so as to eliminate the influence of the bending moment, and ensure that the pull plate structure 6 only bears the tensile force, so that the pull plate structure 6 and the arm head 2 or the bracket 5 The force at the connection is more reasonable and reduces safety hazards.
作为第二连接装置的一种具体实施方式，第二连接装置7包括连接板，连接板的两端各设有一组铰接点，两组铰接点的铰接轴相互垂直。As a specific implementation manner of the second connecting device, the second connecting device 7 includes a connecting plate, and each of the two ends of the connecting plate is provided with a set of hinge points, and the hinge axes of the two sets of hinge points are perpendicular to each other.
具体地，如图4所示，第二连接装置7包括第一连接板74和第二连接板75，第一连接板74和第二连接板75相互垂直地交叉连接。第一连接板74的端部设有第二铰接孔72，该第二铰接孔72与末节拉板73上的铰接孔对齐，形成能够使拉板结构6与第一连接板74连接的铰接点，该铰接点内的铰接轴水平设置；第二连接板75的端部设有第一铰接孔71，该第一铰接孔71与臂头连接板76上的铰接孔对齐，形成能够使第二连接板75与臂头2连接的铰接点，该铰接点内的铰接轴竖直设置，这样，拉板结构6就可以相对于臂头2绕第一铰接孔71内的铰接轴左右摆动，还可以相对于臂头2绕第二铰接孔72内的铰接轴上下摆动，有利于消除弯矩影响，克服由于拉板结构6与臂头2之间具有夹角而造成的应力集中问题，使拉板结构6可以只承受拉力，优化受力情况，降低安全隐患。Specifically, as shown in FIG. 4, the second connecting device 7 includes a first connecting plate 74 and a second connecting plate 75, and the first connecting plate 74 and the second connecting plate 75 are perpendicularly cross-connected to each other. The end of the first connecting plate 74 is provided with a second hinge hole 72 which is aligned with the hinge hole on the last pull plate 73 to form a hinge point capable of connecting the pull plate structure 6 with the first connecting plate 74. The hinge shaft in the hinge point is horizontally disposed; the end of the second connecting plate 75 is provided with a first hinge hole 71, and the first hinge hole 71 is aligned with the hinge hole on the arm joint plate 76 to form a second a hinge point connecting the connecting plate 75 with the arm head 2, and the hinge shaft in the hinge point is vertically disposed, so that the pull plate structure 6 can swing left and right around the hinge shaft of the first hinge hole 71 with respect to the arm head 2, It can swing up and down with respect to the arm shaft 2 about the hinge axis in the second hinge hole 72, which is beneficial to eliminate the influence of the bending moment and overcome the stress concentration problem caused by the angle between the pull plate structure 6 and the arm head 2, so as to pull The plate structure 6 can only withstand the pulling force, optimize the stress situation and reduce the safety hazard.
如图2和图3所示，臂头2具有折弯，以在主臂架1垂直于地面时防止吊起重物与主臂架1发生干涉，这样主臂架1可以提升至与地面大致垂直的位置，提高重物提升高度。而如图1所示的相关技术中的臂架结构只能使主臂提升至与地面呈85°左右夹角的位置，提升高度有限。As shown in FIGS. 2 and 3, the arm head 2 has a bend to prevent the lifting weight from interfering with the main boom 1 when the main boom 1 is perpendicular to the ground, so that the main boom 1 can be lifted to roughly the ground. The vertical position increases the height of the weight. However, the boom structure in the related art as shown in FIG. 1 can only raise the main arm to a position at an angle of about 85° to the ground, and the lifting height is limited.
主臂架1和/或臂头2均可以设置为桁架式臂架结构，这种结构的臂架可以在保证足够的结构强度的前提下，尽可能地减轻臂架的整体重量。Both the main boom 1 and/or the arm head 2 can be configured as a truss boom structure, and the boom of this structure can reduce the overall weight of the boom as much as possible while ensuring sufficient structural strength.
如图3所示，臂头2包括四节基本臂架，各相邻基本臂架之间通过连接总成进行连接。与主臂架1连接的第一节基本臂架较短，方便连接；与第一节基本臂架连接的第二节基本臂架较长，以增大臂架的整体长度；与第二节基本臂架连接的第三节基本臂架较短，且与第二节基本臂架之间形成夹角，以使臂头2整体形成折弯结构；与第 三节基本臂架连接的第四节基本臂架也比较长，第四节基本臂架的顶部设有用于吊重的滑轮组。As shown in FIG. 3, the arm head 2 includes four basic booms, and each adjacent basic boom is connected by a connection assembly. The first basic arm frame connected to the main boom 1 is short and convenient for connection; the second basic arm frame connected to the first basic arm frame is longer to increase the overall length of the boom; and the second section The basic arm of the basic boom is connected to the third basic arm frame and forms an angle with the second basic arm frame, so that the arm head 2 integrally forms a bent structure; and the fourth basic base frame is connected with the fourth arm. The basic boom is also relatively long, and the top of the fourth basic boom is provided with a pulley block for lifting weight.
基于上述各个实施例中的风电专用臂架结构，本公开还提出一种起重机，包括上述的风电专用臂架结构。上述各个实施例中风电专用臂架结构所具有积极效果同样适用于起重机，这里不再赘述。Based on the wind power dedicated boom structure in the above various embodiments, the present disclosure also proposes a crane including the above-described wind power dedicated boom structure. The positive effects of the wind power special boom structure in the above various embodiments are also applicable to the crane, and will not be described herein.
通过对本公开风电专用臂架结构及起重机的多个实施例的说明，可以看到本公开风电专用臂架结构及起重机实施例至少具有以下一种或多种优点：Through the description of the various embodiments of the wind power special arm frame structure and the crane, it can be seen that the wind power special arm frame structure and the crane embodiment have at least one or more of the following advantages:
1、通过优化臂架结构形式，将臂架部分超静定结构优化为臂架整体超静定结构，兼顾了性能提升和整车轻量化，整体强度更高，臂架整体稳定性更好，起升性能得到大幅提升，使臂架可以满足3.0WM以上风机的吊装作业要求；1. By optimizing the structure of the boom, the ultra-static structure of the boom is optimized to the overall statically indeterminate structure of the boom, taking into account the performance improvement and the weight reduction of the whole vehicle, the overall strength is higher, and the overall stability of the boom is better. The lifting performance has been greatly improved, so that the boom can meet the lifting operation requirements of fans above 3.0WM;
2、通过设置支架，增大超起的拉力力臂，使超起拉力对臂架起升性能的提升更加明显；2. By setting the bracket and increasing the tensioning force arm of the super-lifting force, the lifting force of the super-lifting force on the boom is more obvious;
3、两个支架组左右展开，两个支架组的展开宽度远大于臂架截面宽度，大大提升了超起拉力对于臂架侧向稳定性的作用，提升了臂架侧向强度；3. The two bracket groups are deployed left and right. The deployment width of the two bracket groups is much larger than the cross-section width of the boom frame, which greatly enhances the effect of the super-lifting force on the lateral stability of the boom and improves the lateral strength of the boom.
4、通过设置连接支架与臂头的拉板结构，分担了绝大部分载荷在垂直于臂头方向的分力，使臂头主要承受沿轴线方向的正压力，在不增加臂架结构规格的前提下，大大增加了臂架结构的强度性能。4. By setting the connection structure of the connecting bracket and the arm head, the load component of most of the load in the direction perpendicular to the arm head is shared, so that the arm head mainly bears the positive pressure along the axial direction, without increasing the structural specifications of the arm frame. Under the premise, the strength performance of the boom structure is greatly increased.
最后应当说明的是：以上实施例仅用以说明本公开的技术方案而非对其限制；尽管参照较佳实施例对本公开进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本公开的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本公开技术方案的精神，其均应涵盖在本公开请求保护的技术方案范围当中。It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not to be construed as limiting thereof; although the present disclosure will be described in detail with reference to the preferred embodiments, those skilled in the art should understand that Modifications of the specific embodiments disclosed are intended to be equivalent to the equivalents of the technical features of the present disclosure.

Claims (10)

  1. 一种风电专用臂架结构，包括主臂架(1)、臂头(2)、超起装置(3)和第一连接装置，所述臂头(2)与所述主臂架(1)连接，所述超起装置(3)的一端与所述主臂架(1)的远离所述臂头(2)的一端连接，所述超起装置(3)的另一端与所述臂头(2)的远离所述主臂架(1)一端的端部之间通过所述第一连接装置连接，以使所述风电专用臂架结构的整体为超静定结构。A wind power special boom structure, comprising a main boom (1), an arm head (2), a super-lifting device (3) and a first connecting device, the arm head (2) and the main boom (1) Connecting, one end of the super-lifting device (3) is connected to an end of the main boom (1) remote from the arm head (2), and the other end of the super-lifting device (3) is opposite to the arm head The ends of (2) away from one end of the main boom (1) are connected by the first connecting means, so that the whole of the wind power dedicated boom structure is a statically indeterminate structure.
  2. 根据权利要求1所述的风电专用臂架结构，其中，还包括支架(5)，所述支架(5)连接在所述第一连接装置与所述主臂架(1)之间；或者，所述支架(5)连接在所述第一连接装置与所述臂头(2)之间。The armature-specific boom structure according to claim 1, further comprising a bracket (5) connected between the first connecting device and the main boom (1); or The bracket (5) is coupled between the first connecting device and the arm head (2).
  3. 根据权利要求2所述的风电专用臂架结构，其中，所述第一连接装置包括拉板结构(6)，所述拉板结构(6)包括多节拉板，相邻两节所述拉板之间能够相对彼此转动，所述支架(5)的一端连接在所述臂头(2)的靠近所述主臂架(1)的一端，所述支架(5)的另一端与所述拉板结构(6)连接，所述拉板结构(6)的另一端与所述臂头(2)的远离所述主臂架(1)一端的端部连接。The armature-specific boom structure according to claim 2, wherein the first connecting device comprises a pull plate structure (6), and the pull plate structure (6) comprises a multi-section pull plate, and the two adjacent portions are pulled The plates can be rotated relative to each other, one end of the bracket (5) is connected to one end of the arm head (2) close to the main boom (1), and the other end of the bracket (5) is The pull plate structure (6) is connected, and the other end of the pull plate structure (6) is connected to an end of the arm head (2) away from one end of the main boom (1).
  4. 根据权利要求3所述的风电专用臂架结构，其中，所述第一连接装置还包括钢丝绳(4)，所述钢丝绳(4)用于连接所述支架(5)与所述超起装置(3)以及所述超起装置(3)与所述主臂架(1)。A wind power-specific boom structure according to claim 3, wherein said first connecting means further comprises a wire rope (4) for connecting said bracket (5) with said super-lifting device ( 3) and the super-lifting device (3) and the main boom (1).
  5. 根据权利要求3所述的风电专用臂架结构，其中，所述拉板结构(6)包括两组，两组所述拉板结构(6)在一端相互靠近并在另一端相对彼此展开，两组所述拉板结构(6)的最大展开宽度大于所述臂头(2)的截面宽度。The armature-specific boom structure according to claim 3, wherein the pull plate structure (6) comprises two groups, and the two sets of the pull plate structures (6) are close to each other at one end and are unfolded relative to each other at the other end. The maximum expanded width of the set of puller structures (6) is greater than the cross-sectional width of the arm heads (2).
  6. 根据权利要求3所述的风电专用臂架结构，其中，所述支架(5)包括两组，每组所述支架(5)与对应的所述拉板结构(6)连接，每组所述支架(5)包括两个杆件，两个所述杆件的一端与所述拉板结构(6)连接，两个所述杆件的另一端分别连接在所述臂头(2)的不同位置，以使两个所述杆件和所述臂头(2)对所述拉板结 构(6)形成三角形支撑结构。The armature-specific boom structure according to claim 3, wherein the bracket (5) comprises two groups, each set of the brackets (5) being connected to a corresponding one of the pull plate structures (6), each set of said The bracket (5) comprises two rods, one end of which is connected to the pull plate structure (6), and the other ends of the two rods are respectively connected to the different arm heads (2) Positioning such that the two bars and the arm head (2) form a triangular support structure for the pull plate structure (6).
  7. 根据权利要求3所述的风电专用臂架结构，其中，还包括第二连接装置(7)，所述拉板结构(6)与所述臂头(2)之间和/或所述拉板结构(6)与所述支架(5)之间通过所述第二连接装置(7)连接，通过所述第二连接装置(7)能够使所述拉板结构(6)相对于所述臂头(2)和/或所述支架(5)沿至少两个方向转动。A wind power-specific boom structure according to claim 3, further comprising a second connecting device (7), said pull plate structure (6) and said arm head (2) and/or said pull plate The structure (6) is connected to the bracket (5) by the second connecting device (7), and the pulling plate structure (6) can be made relative to the arm by the second connecting device (7) The head (2) and/or the bracket (5) rotate in at least two directions.
  8. 根据权利要求7所述的风电专用臂架结构，其中，所述第二连接装置(7)包括连接板，所述连接板的两端各设有一组铰接点，两组所述铰接点的铰接轴相互垂直。The armature-specific boom structure according to claim 7, wherein the second connecting device (7) comprises a connecting plate, and each of the two ends of the connecting plate is provided with a set of hinge points, and the two sets of hinge points are hinged. The axes are perpendicular to each other.
  9. 根据权利要求1所述的风电专用臂架结构，其中，所述臂头(2)具有折弯，以在所述主臂架(1)垂直于地面时防止吊起重物与所述主臂架(1)发生干涉。The wind power-specific boom structure according to claim 1, wherein the arm head (2) has a bend to prevent lifting of the weight from the main arm when the main boom (1) is perpendicular to the ground The frame (1) interferes.
  10. 一种起重机，其中，包括如权利要求1～9任一项所述的风电专用臂架结构。A crane comprising the wind power-specific boom structure according to any one of claims 1 to 9.
PCT/CN2017/117574 2017-06-12 2017-12-20 Special wind-power boom structure and crane WO2018227919A1 (en)

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CN101519178A (en) * 2008-02-25 2009-09-02 迈可应用机械有限公司 Crane and method thereof
CN102491194A (en) * 2011-11-16 2012-06-13 中联重科股份有限公司 Crane super-lifting device and all-terrain crane with the crane super-lifting device
CN202322106U (en) * 2011-11-16 2012-07-11 中联重科股份有限公司 Crane
CN202337655U (en) * 2011-11-16 2012-07-18 中联重科股份有限公司 Super-lifting device of crane and whole ground crane
CN202864749U (en) * 2012-11-13 2013-04-10 郑州新大方重工科技有限公司 Stretching arm type crane
CN203006791U (en) * 2012-11-13 2013-06-19 浙江省建设机械集团有限公司 Automatic adjustment device for pull rods or digging lines
CN203639019U (en) * 2013-12-20 2014-06-11 太原重工股份有限公司 Caterpillar crane with narrow gauge and large supporting legs
CN203946817U (en) * 2014-07-25 2014-11-19 辽宁抚挖重工机械股份有限公司 A kind of ultra-large type crawler crane
CN204823892U (en) * 2015-07-01 2015-12-02 王军杰 High stability hoist
CN107140557A (en) * 2017-06-12 2017-09-08 徐州重型机械有限公司 The special jib structure of wind-powered electricity generation and crane

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