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CN-120364596-B - Portal crane with multifunctional multiple hanging points

CN120364596BCN 120364596 BCN120364596 BCN 120364596BCN-120364596-B

Abstract

The invention relates to a multifunctional multi-lifting-point gantry crane, which is characterized in that flexible configuration and dynamic adjustment of lifting points are realized through four hoisting mechanisms symmetrically arranged on the left side and the right side and a movable crown block design, the requirements of complex lifting tasks are met, the working efficiency and precision are obviously improved, a second guide pulley is detachably connected with a rectangular frame through a first locking device and is matched with a second locking device of a movable crown block, the second guide pulley can be quickly locked to the movable crown block after unlocking, seamless switching of the position of the second guide pulley is realized, the functions of equipment are expanded, manual intervention is reduced, the second locking device finishes the fixation of the second guide pulley while unlocking the first locking device, the operation flow is simplified, the misoperation risk is reduced, the safety and stability of the lifting process are ensured, and the linkage design of the movable crown block and the second guide pulley avoids the occupation of redundant space caused by the fixed structure of the traditional gantry crane, and is particularly suitable for lifting operations in narrow or complex places.

Inventors

  • LIU WEIQUAN
  • Zou Fatang
  • CHEN YITING
  • CHEN KUNZHAO
  • LIU ZHILIANG

Assignees

  • 广东长实港口机械设备有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (7)

  1. 1. The multifunctional multi-lifting-point gantry crane comprises a rectangular frame (1) and a support frame body (2) for supporting the rectangular frame (1), and is characterized in that two first hoisting mechanisms (3) are arranged at intervals in front of and behind the left side of the upper end of the rectangular frame (1), two second hoisting mechanisms (4) are arranged at intervals in front of and behind the right side of the upper end of the rectangular frame (1), a first guide pulley (5) matched with a first steel wire rope (10) of the first hoisting mechanisms (3) is arranged on the right side of the lower end of the rectangular frame (1), a second guide pulley (6) matched with a second steel wire rope (20) of the second hoisting mechanisms (4) is arranged on the left side of the lower end of the rectangular frame (1), a movable crown block (7) capable of moving along the left-right direction is further arranged on the rectangular frame (1), the first guide pulley (5) is fixedly connected with the rectangular frame (1), the second guide pulley (6) is detachably connected with the rectangular frame (1) through a first locking device, and the second guide pulley (7) is simultaneously locked on the second guide pulley (7) through the second locking device, and the second guide pulley (7) can be locked by the second locking device and the second guide pulley (7) simultaneously, the second guide pulley (6) comprises a pulley frame body (21) and a pulley (22) at the lower end of the pulley frame body (21), an installation groove (23) is formed in the left inner wall of the rectangular frame (1), the pulley frame body (21) is installed in the installation groove (23) in a left-right sliding mode, the first locking device comprises a first sliding groove (31) formed in one side of the installation groove (23), a first sliding seat (32) is arranged in the first sliding groove (31) in a front-back sliding mode, a first locking plate (33) is arranged on one side of the first sliding seat (32), a locking through hole (34) is formed in the pulley frame body (21), a spring (35) which enables the first locking plate (33) to be inserted into the locking through hole (34) is connected between the first sliding seat (32) and the first sliding groove (31), a guide inclined surface (36) is arranged at the corner of the outer side of the first locking plate (33), the second locking device comprises a first sliding seat (32) arranged in the first sliding seat (31), a first sliding seat (41) is arranged on the left side of the mobile crown block (7), a second sliding seat (41) is arranged in the first sliding seat (41), a third sliding seat (43) is arranged on the front of the first sliding seat (41), an air cylinder (45) for driving the second sliding seat (44) to slide back and forth is arranged on the inner side of the vertical plate (41), a second locking plate (46) is arranged at the outer end of the second sliding seat (44), the second locking plate (46) can be inserted into the second sliding groove (42) along with the movement of the movable crown block (7), and the second locking plate (46) can be driven by the air cylinder (45) to be inserted into the locking through hole (34) and push out the first locking plate (33).
  2. 2. The multi-functional multi-hanging-point gantry crane of claim 1, wherein a first supporting hanging plate (24) is arranged at the upper end of the pulley frame body (21), a supporting notch (25) is arranged at the upper end of the mounting groove (23), and the first supporting hanging plate (24) is supported and hung in the supporting notch (25).
  3. 3. The multi-functional multi-hanging-point gantry crane of claim 1, wherein second supporting hanging plates (51) are arranged on two sides of the pulley frame body (21), supporting plates (52) are arranged on the outer sides of the vertical plates (41), and the supporting plates (52) can support the second supporting hanging plates (51).
  4. 4. The gantry crane with multiple hanging points according to claim 1, wherein a first guiding cylinder (61) for guiding the second steel wire rope (20) is arranged on the rectangular frame (1) and positioned at the rope outlet end of the second hoisting mechanism (4), a second guiding cylinder (62) for guiding the second steel wire rope (20) is arranged at the lower end of the movable crown block (7), the first guiding cylinder (61) and the second guiding cylinder (62) have the same structure, each guiding cylinder comprises a cylinder body (63) for the second steel wire rope (20) to pass through, oblique angles (64) are chamfered on the inner walls of the two ends of the cylinder body (63), and balls (65) are uniformly distributed on the oblique angles (64) along the circumference.
  5. 5. The gantry crane with multiple hanging points for multiple functions as set forth in claim 4, wherein the traveling crane (7) comprises a traveling crane body (71) and a rotating seat (72) rotatably disposed at the lower end of the traveling crane body (71), and the second locking device and the second guiding cylinder (62) are disposed on the rotating seat (72).
  6. 6. The gantry crane with multiple hanging points according to claim 5, wherein a rotating shaft (81) is arranged at the upper end of the rotating seat (72), the upper end of the rotating shaft (81) penetrates through the movable vehicle body (71) and is provided with a rotating disc (82), a bracket (83) is arranged at the upper end of the movable vehicle body (71), the lower end of the rotating disc (82) is rotatably supported on the bracket (83), a first gear (84) is arranged on the rotating shaft (81), a rotating motor (85) is arranged on the movable vehicle body (71), and a second gear (86) meshed with the first gear (84) is arranged on an output shaft of the rotating motor (85).
  7. 7. The multi-functional multi-hanging-point gantry crane of claim 6, wherein upright posts (91) are arranged on the rotary disc (82) at left and right intervals, pull ropes (92) are arranged on the upright posts (91), the left and right sides of the rotary seat (72) extend outwards out of the movable crown block (7), and the other ends of the pull ropes (92) are fixedly connected with the rotary seat (72).

Description

Portal crane with multifunctional multiple hanging points Technical Field The invention relates to the technical field of gantry cranes, in particular to a multifunctional multi-hanging-point gantry crane. Background The gantry crane is used as heavy lifting equipment and is widely applied to scenes such as ports, construction sites, workshops and the like. The traditional gantry crane generally adopts a fixed lifting point design, the lifting position and the lifting direction of the traditional gantry crane are limited by structural layout, and the traditional gantry crane is difficult to adapt to diversified lifting requirements under complex working conditions. Especially in the scene that needs many hoisting points collaborative operations or dynamic adjustment hoist and mount position, current portal crane often need rely on many equipment cooperation or frequent adjustment structure, leads to the operating efficiency low, operation complicacy and cost higher. In addition, the traditional guide pulleys are mostly of fixed designs, and can not flexibly change positions or disassemble and reorganize according to actual demands, so that the function expansibility of the equipment is limited. Therefore, in order to solve the above problems, a gantry crane apparatus with multiple lifting points dynamic adjustment capability, flexible structure and strong adaptability is needed to meet the lifting requirements of high efficiency, accuracy and multiple scenes in modern engineering. Disclosure of Invention The invention aims to solve at least one of the problems existing in the prior related art to a certain extent, and therefore, the invention provides a multifunctional multi-hanging-point gantry crane. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a multi-functional many hoisting points's portal crane, includes rectangular frame and is used for carrying out the support frame body to rectangular frame the interval has two first hoist mechanism around the left side of rectangular frame upper end the interval has two second hoist mechanism around the right side of rectangular frame upper end the right side of rectangular frame lower extreme is provided with the first guide pulley that carries out complex with first hoist mechanism's wire rope first the left side of rectangular frame lower extreme is provided with the second guide pulley that carries out complex with second hoist mechanism's wire rope second still be provided with on the rectangular frame and follow the removal overhead traveling crane that left and right directions moved, first guide pulley and rectangular frame fixed connection, the second guide pulley can be dismantled with rectangular frame through first locking device be connected be provided with second locking device on the removal overhead traveling crane, second locking device can right first locking device unblock, and lock second guide pulley through the second locking device when unblock to make its second guide pulley fix on the overhead traveling crane. In some embodiments, the second guide pulley comprises a pulley frame body and a pulley at the lower end of the pulley frame body, a mounting groove is formed in the inner wall of the left side of the rectangular frame, and the pulley frame body is mounted in the mounting groove in a left-right sliding mode. In some embodiments, a first support hanging plate is arranged at the upper end of the pulley frame body, a support notch is arranged at the upper end of the mounting groove, and the first support hanging plate is supported and hung in the support notch. In some embodiments, the first locking device includes a first chute provided at one side of the installation groove, a first sliding seat is provided in the first chute to slide back and forth, a first locking plate is provided at one side of the first sliding seat, a locking through hole is provided on the pulley frame body, a spring capable of keeping the first locking plate inserted into the locking through hole is connected between the first sliding seat and the first chute, and a guiding inclined plane is provided at a corner of the first locking plate at an outer side. In some embodiments, the second locking device comprises a vertical plate arranged at the left side of the mobile crown block, a second sliding groove is arranged at one side of the mounting groove opposite to the first sliding groove, a third sliding groove is arranged on the vertical plate, a second sliding seat is arranged in the third sliding groove in a sliding mode, an air cylinder for driving the second sliding seat to slide back and forth is arranged at the inner side of the vertical plate, a second locking plate is arranged at the outer end of the second sliding seat, the second locking plate can be inserted into the second sliding groove along with the movement of the mobile crown block, and the second locking p