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CN-122009989-A - Suspension arm supporting structure

CN122009989ACN 122009989 ACN122009989 ACN 122009989ACN-122009989-A

Abstract

The invention relates to the technical field of engineering machinery, and discloses a suspension arm supporting structure which comprises a carrying platform and a supporting frame. The support frame is arranged on the carrying platform and can move relative to the carrying platform, the support frame comprises a first support part and a second support part, the support frame is configured to move relative to the carrying platform to have a first position and a second position, when the support frame is positioned at the first position, the first support part is in a support state, the second support part is in a retraction state, the first support part supports the telescopic arm, when the support frame is positioned at the second position, the second support part is in a support state, the first support part is in a retraction state, and the second support part is used for supporting the fly arm. Therefore, in the transportation state, the fly arm can be supported and limited by the second supporting part under the condition of keeping being mounted on the telescopic arm, so that the fly arm and the main arm form an integral structure, and are transported to a construction site along with the vehicle.

Inventors

  • CHENG XIANGLONG
  • WU FENGFEI
  • DONG JIAZHANG

Assignees

  • 三一汽车起重机械有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (10)

  1. 1.A boom support structure, comprising: A carrying platform (100); A support frame (200) disposed on the carrying platform (100) and capable of moving relative to the carrying platform (100), the support frame (200) including a first support portion (210) and a second support portion (220); The support frame (200) is configured to be movable relative to the carrying platform (100) to have a first position and a second position, wherein when the support frame (200) is located at the first position, the first support portion (210) is in a supporting state, the second support portion (220) is in a retracted state, the first support portion (210) supports the telescopic arm (300), when the support frame (200) is located at the second position, the second support portion (220) is in a supporting state, the first support portion (210) is in a retracted state, and the second support portion (220) is used for supporting the fly arm (400).
  2. 2. Boom support structure according to claim 1, characterized in that the first support part (210) is rotatably connected to the carrying platform (100) and rotates around a first direction, and the second support part (220) is connected to one side of the first support part (210) in a second direction and is arranged at an angle to the first support part (210), the first direction being perpendicular to the second direction.
  3. 3. Boom support structure according to claim 2, characterized in that the boom support structure further comprises: The stopping part (500), the stopping part (500) is arranged on the carrying platform (100), along the second direction, the stopping part (500) is positioned at one side of the first supporting part (210) deviating from the second supporting part (220), and when the second supporting part (220) is in a supporting state, the first supporting part (210) rotates to be abutted against the stopping part (500).
  4. 4. A boom support structure according to claim 3, characterized in that the first support part (210) is turned to abut against the stop part (500), the connection of the stop part (500) with the first support part (210) and the second support part (220) being arranged vertically spaced apart.
  5. 5. A boom support structure according to claim 3, wherein said stop (500) comprises: -a fixed block (510) mounted to the carrying platform (100); limiting plates (520), limiting plates (520) are arranged on two sides of the fixed block (510) along the first direction, the first supporting portion (210) is abutted to the fixed block (510), and the limiting plates (520) are correspondingly abutted to two sides of the first supporting portion (210).
  6. 6. The boom support structure of claim 5, wherein the limiting plate (520) is provided with a first locking hole (540), the first support portion (210) includes a second locking hole (250) disposed corresponding to the first locking hole (540), and the stop portion (500) further includes a locking member, and the locking member is connected with the first locking hole (540) and the second locking hole (250).
  7. 7. Boom support structure according to any of claims 2-6, characterized in that a drive structure (600) is mounted on the carrying platform (100), which drive structure (600) is connected to the first support part (210), which drive structure (600) is adapted to drive the first support part (210) in rotation.
  8. 8. The boom support structure of claim 7, wherein the drive structure (600) comprises: -a support base (610) mounted to the carrying platform (100); The turnover seat (620), turnover seat (620) rotate connect to supporting seat (610), turnover seat (620) tip is formed with connection terminal surface (630), first supporting part (210) are connected to connection terminal surface (630), turnover seat (620) are connected with the drive source transmission.
  9. 9. The boom support structure according to claim 8, wherein a top end surface of the support base (610) is formed with a recess (640), the tilting base (620) is partially rotatably connected in the recess (640), outer peripheral edges (641) of both side walls of the recess (640) along a first direction are configured in an arc shape, flanges (631) abutting against both side walls are formed on the tilting base (620), and the flanges (631) are configured to be slidable around the first direction along the outer peripheral edges (641) of the side walls of the recess (640).
  10. 10. Boom support structure according to any of claims 1-6, characterized in that said first support portion (210) comprises: The telescopic support comprises a first support rod (211) and a second support rod (212), wherein the first support rod (211) and the second support rod (212) are oppositely arranged and incline towards each other, a first bearing seat (213) is arranged at the end part of the first support rod (211), a second bearing seat (214) is arranged at the end part of the second support rod (212), and when the first support part (210) is in a support state, the first bearing seat (213) and the second bearing seat (214) support the end part of the telescopic arm (300); And/or: The second support part (220) includes: Third bracing piece (221) and fourth bracing piece (222), third bracing piece (221) with fourth bracing piece (222) set up relatively to incline in opposite directions, the tip of third bracing piece (221) is provided with third socket (223), the tip of fourth bracing piece (222) is provided with fourth socket (224), works as second supporting part (220) are in the supporting state, third socket (223) with fourth socket (224) support the tip of fly jib (400).

Description

Suspension arm supporting structure Technical Field The invention relates to the technical field of engineering machinery, in particular to a suspension arm support structure. Background The folding arm crane generally comprises two telescopic arm structures, namely a telescopic arm and a fly arm. The fly jib is detachably arranged at the tail end of the telescopic boom, has smaller section and mainly plays an auxiliary bearing role. In the actual operation process, when the working space is relatively wide, the telescopic boom is generally used for carrying out the hanging operation, and when the working space is limited (such as the interior of a factory building, the lower part of a bridge, the inside of a tunnel and other narrow environments), the fly boom is additionally arranged at the tail end of the telescopic boom, and the auxiliary hanging operation is completed by utilizing the fly boom. When the vehicle runs to the operation site, the telescopic boom runs along with the vehicle, and the fly boom is transported by an independent trailer, so that the transportation cost is high, meanwhile, for construction scenes of scattered operation sites and multiple transitions, the fly boom is required to be installed and removed before and after each operation, time and labor are wasted, and the overall operation efficiency is remarkably reduced. Disclosure of Invention The invention provides a suspension arm supporting structure for solving the technical problems. The present invention provides a boom support structure comprising: A carrying platform; The support frame is arranged on the carrying platform and can move relative to the carrying platform, and comprises a first support part and a second support part; The support frame is configured to be movable relative to the carrying platform to have a first position and a second position, wherein when the support frame is in the first position, the first support portion is in a supporting state, the second support portion is in a retracted state, the first support portion supports the telescopic arm, when the support frame is in the second position, the second support portion is in a supporting state, the first support portion is in a retracted state, and the second support portion is used for supporting the fly arm. The beneficial effects are that: Therefore, in the transportation state, the fly arm can be supported and limited by the second supporting part under the condition of keeping being mounted on the telescopic arm, so that the fly arm and the main arm form an integral structure, and are transported to a construction site along with the vehicle. Meanwhile, when the equipment needs to perform multi-field transition operation, the fly jib does not need to be repeatedly disassembled and reinstalled, so that the time and labor cost consumed by loading and unloading operation are reduced. Compared with the mode that the fly jib is required to be transported independently in the related art, a special trailer is not required to be additionally arranged, so that the transportation cost is effectively reduced, and the organization and scheduling difficulty in the equipment transportation process is simplified. In addition, through the stable support of second supporting part to the fly jib, can form reliable support and restraint to the fly jib in the transportation, reduce the fly jib and produce the condition of rocking or atress inequality to promote the stability and the security of whole transportation. Therefore, the reliability of equipment transportation is improved, and the convenience and the operation efficiency of the equipment in the actual use process are further improved. In an alternative embodiment, the first support portion is rotatably connected to the carrying platform and rotates around a first direction, and the second support portion is connected to one side of the first support portion along a second direction and is disposed at an angle to the first support portion, and the first direction is perpendicular to the second direction. The beneficial effects are that: therefore, the first supporting part is driven to rotate towards the direction deviating from the second supporting part, and the included angle between the first supporting part and the second supporting part is formed, so that the second supporting part rotates to be parallel to the vertical direction, and the fly jib is supported. Therefore, stable and reliable support and constraint can be formed on the fly arm in the transportation process, and the conditions of the swing or uneven stress of the fly arm are reduced, so that the stability and safety of the whole transportation process are further improved. In an alternative embodiment, the boom support structure further comprises: the stopping part is arranged on the carrying platform, is positioned on one side of the first supporting part, which is away from the second supporting part, along the second direction, and