Crane fly boom structure

Abstract

The invention discloses a crane fly jib structure which comprises a main jib and a fly jib, the fly jib is mounted at the jib head of the main jib, and the fly jib comprises a support section I, a support section II, a pull plate and a connecting support; the fly jib penetrates into different supporting limiting holes through supporting limiting pin shafts to achieve different working length states of the fly jib. According to the fly jib structure composed of the support, the pull plate and the connecting support, the mounting state of the fly jib structure is changed by adjusting the connecting state of the pull plate, the hoisting operation requirement that large pieces of high-rise buildings enter residents under different working conditions is met, and the problem that an auxiliary jib structure occupies a large space in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the field of cranes, and in particular to a crane flying arm structure. Background Art

[0002] Currently, large items brought into homes are usually transported by elevator or carried by hand up stairs, by small cranes, by spider cranes, or by crane hoisting operations. Elevator transport or manual stair transport is suitable for lighter objects, and the objects cannot be too wide. In the absence of elevators, manual stair transport is the only option, such as refrigerators, washing machines, air conditioners, etc. This solution is the most commonly used. Small cranes can lift objects on the ground to a certain height through windows or open areas and then carry them into the home. The transportation process requires a suitable support area, and its application is relatively widespread. Spider cranes are suitable for confined spaces. Their lifting weight is greater than that of small cranes, and they require a certain ground support area. Their function is similar to that of cranes. Crane operations are suitable for lifting larger weights and are suitable for operations on the exterior surfaces of high-rise buildings or hoisting items on rooftops.

[0003] Existing technologies for crane lifting include a flying arm mechanism and lifting equipment (CN217201746U), a flying arm mechanism and climbing rescue machinery for climbing and rescue machinery (CN221116901U). The crane jib plays an important role in increasing the lifting height and amplitude. However, with the increase in high-rise buildings and the increasing number of large items entering residents' homes, large items often cannot be transported by elevators or stairs and need to be delivered into the house through residents' windows. At this time, a crane is needed to meet this working condition requirement, but the large cross-sectional area and long length of the jib cannot meet the requirement.

[0004] Therefore, it is necessary to develop a new type of crane flying arm structure in a targeted manner to overcome the problem of large space occupied by the auxiliary arm structure in the existing technology and meet the lifting needs of large items entering residents' homes in high-rise buildings. Summary of the Invention

[0005] Purpose of the invention: In view of the shortcomings and defects of the existing technology, the present invention provides a crane flying arm structure, which is composed of a support, a pull plate, and a connecting support. The connection state of the pull plate is adjusted to change the installation state of the flying arm structure, thereby realizing the lifting operation needs of large items of high-rise buildings entering residents under different working conditions, and overcoming the problem of large space occupied by the auxiliary arm structure in the existing technology.

[0006] Technical solution: A crane flying arm structure of the present invention is characterized in that it includes a main arm and a flying arm, the flying arm is installed on the arm head of the main arm, and the flying arm includes support section I, support section II, a pull plate and a connecting support; the flying arm realizes different working length states of the flying arm by passing the support limit pin shaft into different support limit holes.

[0007] Wherein, the pull plate includes a pull plate I and a pull plate II, and the pull plate I and the pull plate II are provided with a plurality of pin shaft holes.

[0008] Among them, the pull plate I and the pull plate II are inserted into the spool holes at different positions through the pull plate limit pins, and the pull plate I and the pull plate II are combined to realize different amplitude change states of the flying arm.

[0009] Wherein, the flying arm is provided with a flying arm installation auxiliary shaft.

[0010] The auxiliary shaft for installing the flying arm is used to assist in installing the flying arm and adjusting the amplitude of the pull plate.

[0011] Wherein, one end of the pull plate is hinged to the upper part of the main arm head, and the other end of the pull plate is hinged to the supporting structure.

[0012] Wherein, the support structure includes support section I and support section II.

[0013] Among them, one end of the connecting support is hinged to the lower part of the main arm head, and the other end of the connecting support is hinged to the end of the supporting structure.

[0014] Among them, the support section I, support section II and pull plate are all length-adjustable structures.

[0015] Wherein, the main arm and the flying arm are located on the crane.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: the flying arm of the present invention has multiple length working condition combinations; it has multiple amplitude angle working condition combinations; the flying arm length working condition combinations and amplitude angle working condition combinations can be combined at will; the flying arm is light in weight, easy to install, and occupies a small space; the narrow and long structure of the flying arm can meet the requirements of urban working conditions such as lifting heavy objects from the outdoors and entering through windows, which improves the crane's adaptability to special working conditions. The flying arm structure of the present invention consists of a support, a pull plate, and a connecting support. The connection state of the pull plate is adjusted to change the installation state of the flying arm structure, realizing the lifting operation requirements of large high-rise buildings entering residents under different working conditions, and overcoming the problem of the existing technology that the auxiliary arm structure occupies a large space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0018] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the installation of the control sub-component of the present invention;

[0020] Figure 4 This is a schematic diagram of the amplitude variation state of the present invention;

[0021] In the figure, 100 is the main arm; 200 is the flying arm; 210 is the support section I; 211 is the support limit pin; 212 is the support limit hole; 220 is the support section II; 230 is the pull plate; 231 is the pull plate I; 232 is the pull plate II; 233 is the pull plate limit pin; 240 is the connecting support; 241 is the auxiliary shaft for installing the flying arm. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The boom of the present invention: is generally formed by connecting two steel plates bent into a groove shape, and is composed of a total of multiple sections, and adopts an embedded assembly form; it can achieve telescoping between each section of the boom with the help of oil cylinders, etc., and is described in this article as the main boom. The auxiliary arm: is designed on the basis of the boom to increase the lifting height and amplitude working conditions, and is a structural component used under special working conditions. It is generally suspended on the side of the boom, and is horizontally rotated around the boom head when in use to complete the docking. The flying arm: is designed on the basis of the boom to increase the lifting height and amplitude working conditions, and is a structural component used under special working conditions. It can generally be carried with the crane (usually fixed on the crane chassis), is light in weight, and is installed on the boom head when in use.

[0024] The crane jib structure of the present invention includes a main boom 100 and a flying boom 200. The flying boom 200 is mounted on the boom head of the main boom 100 and includes a support section I 210, a support section II 220, a pull plate 230, and a connecting support 240. The flying boom 200 achieves different operating lengths by inserting a support limit pin 211 into different support limit holes 212. The pull plate 230 includes a pull plate I 231 and a pull plate II 232, each of which is provided with a plurality of pin holes. Pull plates I 231 and II 232 are inserted into spool holes at different positions via pull plate limit pins 233. The pull plates I 231 and II 232 are combined to achieve different variable length states of the flying boom 200. The flying boom 200 is provided with a fly boom mounting auxiliary shaft 241. The fly jib mounting auxiliary shaft 241 assists in the installation of the fly jib 200 and the luffing adjustment of the pull plate 230. One end of the pull plate 230 is hinged to the upper portion of the boom head of the main boom 100, while the other end is hinged to the support structure. The support structure comprises support section I 210 and support section II 220. One end of the connecting support 240 is hinged to the lower portion of the boom head of the main boom 100, while the other end is hinged to the end of the support structure. Support section I 210, support section II 220, and the pull plate 230 are all adjustable in length. The main boom 100 and fly jib 200 are located on the crane.

[0025] like Figure 1 The flying arm 200 is installed on the arm head of the main arm 100.

[0026] like Figure 2 The main structure of the flying arm 200 is composed of a support section I 210, a support section II 220, a pull plate 230, and a connecting support 240.

[0027] like Figure 3 , Flying arm installation control sub-assembly installation diagram, the flying arm 200 can achieve different working length states by inserting the support limit pin 211 into different support limit holes 212, Figure 1 The flying arm 200 is in the fully retracted state. Figure 2 The fly boom 200 is in the fully extended state. The fly boom 200's pull plate I 231 and pull plate II 232 have multiple pin holes. By inserting the pull plate limit pin 233 into different positions and combining pull plates I 231 and II 232, the fly boom 200 can achieve different luffing states, meeting diverse operating requirements. The fly boom installation auxiliary shaft 241 assists in the installation of the fly boom 200 and the luffing adjustment of the pull plate 230.

[0028] like Figure 4 , one of the states after the flying arm has changed its amplitude by 200 degrees.

[0029] The crane flying boom structure of the present invention includes a support, a pull plate, and a connecting support, wherein one end of the pull plate is hinged to the upper part of the main boom head, and the other end is hinged to the supporting structure, one end of the connecting support is hinged to the lower part of the main boom head, and the other end is hinged to the end of the support, the length of the pull plate is adjustable, and the length of the supporting structure is adjustable. The flying boom has multiple variable angles and multiple telescopic lengths, and can be combined at will. The pull plate can be replaced with a steel wire rope, an iron chain, a combined telescopic tube, etc. The structural form of the flying boom connecting support is changed, such as a triangular structure, a trapezoidal structure, etc. The flying boom variable length form adopts a steel wire rope, an iron chain, a combined telescopic tube, etc.

[0030] The fly arm of the present invention has multiple length working condition combinations and multiple amplitude angle working condition combinations; the fly arm length working condition combinations and amplitude angle working condition combinations can be arbitrarily combined; the fly arm is lightweight, easy to install, and occupies a small space; the narrow and long structure of the fly arm can meet the needs of cranes lifting heavy objects from outdoors and urban operating conditions such as entering through windows, which enhances the crane's adaptability to special working conditions. The fly arm structure of the present invention consists of a support, a pull plate, and a connecting support. The connection state of the pull plate is adjusted to change the installation state of the fly arm structure, meeting the needs of lifting large objects from high-rise buildings to residents under different working conditions, overcoming the problem of large space occupation of the auxiliary arm structure in the prior art.

Claims

1. A crane flying arm structure, characterized by: The invention comprises a main arm (100) and a flying arm (200), wherein the flying arm (200) is installed on the arm head of the main arm (100), and the flying arm (200) comprises a support section I (210), a support section II (220), a pull plate (230) and a connecting support (240); and the flying arm (200) realizes different working length states of the flying arm (200) by passing a support limiting pin shaft (211) through different support limiting holes (212).

2. The crane jib structure according to claim 1, characterized in that: The pulling plate (230) comprises a pulling plate I (231) and a pulling plate II (232), and the pulling plate I (231) and the pulling plate II (232) are provided with a plurality of pin shaft holes.

3. The crane jib structure according to claim 2, characterized in that: The pull plate I (231) and the pull plate II (232) are inserted into the spool holes at different positions through the pull plate limiting pin (233), and the pull plate I (231) and the pull plate II (232) are combined to realize different amplitude change states of the flying arm (200).

4. The crane jib structure according to claim 1, characterized in that: The flying arm (200) is provided with a flying arm mounting auxiliary shaft (241).

5. The crane jib structure according to claim 4, characterized in that: The flying arm installation auxiliary shaft (241) is used to assist the installation of the flying arm (200) and the amplitude adjustment of the pull plate (230).

6. The crane jib structure according to claim 1, characterized in that: One end of the pull plate (230) is hinged to the upper part of the arm head of the main arm (100), and the other end of the pull plate (230) is hinged to the supporting structure.

7. The crane jib structure according to claim 6, characterized in that: The support structure includes a support section I (210) and a support section II (220).

8. The crane jib structure according to claim 1, characterized in that: One end of the connecting support (240) is hinged to the lower part of the arm head of the main arm (100), and the other end of the connecting support (240) is hinged to the end of the supporting structure.

9. The crane jib structure according to claim 1, characterized in that: The support section I (210), support section II (220), and pull plate (230) are all length-adjustable structures.

10. The crane jib structure according to claim 1, characterized in that: The main arm (100) and the flying arm (200) are located on the crane.

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