Search

CN-224226543-U - Quick connection structure of gantry crane landing leg and lower beam

CN224226543UCN 224226543 UCN224226543 UCN 224226543UCN-224226543-U

Abstract

The utility model relates to the technical field of hoisting machinery, and particularly discloses a quick connecting structure for a landing leg and a lower beam of a portal crane, which comprises supporting legs, wherein an operation port is formed in the front face of each supporting leg, a fixing frame with holes is fixedly connected to the inner side wall of each operation port, a locking cap is arranged in each fixing frame with holes, a connecting plate is arranged above each supporting leg, the connecting plates are matched with a fixing groove, a clamping groove and a connecting hole in a plugging manner through connecting blocks, limiting frames and threaded locking rods, and the locking caps are used for locking the threaded locking rods, so that stability of the connecting plates is ensured, then a beam main body is placed on the connecting plates, preliminary positioning is realized through positioning pins and clamping blocks and the adaptation of the positioning ports and the connecting grooves of the beam main body, meanwhile, the positioning screws penetrate through limiting insertion holes, and the locking by using the fastening caps, so that the reliability of connection is further ensured, and the problem that the lower beam is inconvenient to position in the installation process is complicated is effectively solved.

Inventors

  • YU HANXIANG
  • JIN XIQUAN
  • LIU XIAOLONG

Assignees

  • 鞍山市起重机械有限公司

Dates

Publication Date
20260512
Application Date
20250630

Claims (6)

  1. 1. The utility model provides a portal crane landing leg and underbeam quick connect structure, includes supporting leg (1), operation mouth (2) have been seted up in the front of supporting leg (1), the inside wall fixedly connected with foraminiferous mount (3) of operation mouth (2), the inside of foraminiferous mount (3) is equipped with locking cap (4), the top of supporting leg (1) is equipped with connecting plate (6), the upper surface fixedly connected with joint piece (7) of connecting plate (6), the upper surface fixedly connected with locating screw (8) of joint piece (7), the top of connecting plate (6) is equipped with crossbeam main part (10), spacing jack (11) have been seted up to the upper surface of crossbeam main part (10), the top of spacing jack (11) is equipped with fastening cap (12), the top of locating screw (8) runs through spacing jack (11) and with fastening cap (12) threaded connection, connecting groove (18) have been seted up to the bottom surface of crossbeam main part (10), and joint piece (7) looks adaptation piece (7), supporting leg (1) top (14) have been seted up, constant head tank (14) have been seted up on the top (14).
  2. 2. The quick connection structure for the landing leg and the lower cross beam of the gantry crane, as claimed in claim 1, is characterized in that the upper surface of the perforated fixing frame (3) is fixedly connected with two positioning blocks (5), and the upper surface of each positioning block (5) is fixedly connected with the inner top wall of the operation port (2).
  3. 3. The quick connection structure for the landing leg and the lower cross beam of the gantry crane according to claim 1, wherein the upper surface of the connecting plate (6) is fixedly connected with two positioning pins (9), two positioning openings (22) are formed in the bottom surface of the cross beam main body (10), and the positioning openings (22) are matched with the positioning pins (9).
  4. 4. The quick connection structure for the landing leg and the lower cross beam of the gantry crane, as claimed in claim 1, is characterized in that two groups of limiting holes (17) are formed in the top end of the supporting leg (1), two groups of positioning rods (19) are fixedly connected to the bottom surface of the connecting plate (6), and the positioning rods (19) are matched with the limiting holes (17).
  5. 5. The quick connection structure for the landing leg and the lower cross beam of the gantry crane according to claim 1, wherein the bottom surface of the connecting plate (6) is fixedly connected with a connecting block (21), the bottom surface of the connecting block (21) is fixedly connected with a threaded locking rod (15), the connecting block (21) is clamped with the fixing groove (14), and the bottom end of the threaded locking rod (15) sequentially penetrates through the connecting hole (13) and the fixing frame (3) with holes and is in threaded connection with the locking cap (4).
  6. 6. The quick connection structure for the landing leg and the lower cross beam of the gantry crane according to claim 1, wherein the bottom surface of the connecting plate (6) is fixedly connected with a limiting frame (20), and the limiting frame (20) is clamped with the clamping groove (16).

Description

Quick connection structure of gantry crane landing leg and lower beam Technical Field The utility model relates to the technical field of hoisting machinery, in particular to a quick connection structure of a gantry crane landing leg and a lower beam. Background The mechanical lifting machinery is mechanical equipment for vertically lifting or vertically lifting and horizontally moving heavy objects, the range of the mechanical equipment is defined as a lifter with the rated lifting weight being larger than or equal to 0.5t, the rated lifting weight being larger than or equal to 3t and the lifting height being larger than or equal to 2m, the mechanical parking equipment with the layer number being larger than or equal to 2 is a lifting equipment widely applied to places such as ports, wharfs, warehouses and construction sites, and the like. At present, the connected mode of gantry crane landing leg and bottom end rail mainly has welding and bolted connection two kinds, and welded connection can provide higher joint strength, and nevertheless discovery when landing leg and bottom end rail are connected is inconvenient to fix a position the bottom end rail, leads to comparatively loaded down with trivial details and consuming time longer in the installation to reduced connecting efficiency, can't satisfy the user demand, for this reason, we propose a gantry crane landing leg and bottom end rail quick connect structure and solve above-mentioned problem. Disclosure of utility model The utility model aims to provide a quick connection structure for a landing leg and a lower beam of a portal crane, which solves the problems that the lower beam is inconvenient to position, and the time consumption is relatively complicated in the installation process, so that the connection efficiency is reduced, and the requirement of a user cannot be met. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a portal crane landing leg and underbeam quick connect structure, includes the supporting leg, the operation mouth has been seted up in the front of supporting leg, the inside wall fixedly connected with foraminiferous mount of operation mouth, foraminiferous inside of mount is equipped with the locking cap, the top of supporting leg is equipped with the connecting plate, the last fixed surface of connecting plate is connected with the joint piece, the last fixed surface of joint piece is connected with the locating screw, the top of connecting plate is equipped with the crossbeam main part, spacing jack has been seted up to the upper surface of crossbeam main part, spacing jack's top is equipped with the fastening cap, spacing jack and with fastening cap threaded connection are run through on the top of locating screw, the spread groove has been seted up to the bottom surface of crossbeam main part, and spread groove and joint piece looks adaptation, the fixed slot has been seted up to the top of supporting leg, the connecting hole has been seted up to the bottom wall in the fixed slot, the joint groove has been seted up on the top of supporting leg. As the quick connection structure of the landing leg and the lower cross beam of the gantry crane, the upper surface of the perforated fixing frame is fixedly connected with two positioning blocks, and the upper surface of each positioning block is fixedly connected with the inner top wall of the operation port. As the quick connecting structure for the landing leg and the lower cross beam of the gantry crane, the quick connecting structure is preferable, the upper surface of the connecting plate is fixedly connected with two positioning pins, the bottom surface of the main body of the cross beam is provided with two positioning openings, and the positioning openings are matched with the positioning pins. As the quick connection structure of the landing leg and the lower cross beam of the portal crane, the quick connection structure is preferable, two groups of limiting holes are formed in the top end of the supporting leg, two groups of positioning rods are fixedly connected to the bottom surface of the connecting plate, and the positioning rods are matched with the limiting holes. As the quick connecting structure for the landing leg and the lower cross beam of the portal crane, the quick connecting structure is preferable, the bottom surface of the connecting plate is fixedly connected with the connecting block, the bottom surface of the connecting block is fixedly connected with the threaded locking rod, the connecting block is clamped with the fixing groove, and the bottom end of the threaded locking rod sequentially penetrates through the connecting hole and the fixing frame with holes and is in threaded connection with the locking cap. As the quick connection structure of the landing leg and the lower cross beam of the gantry crane, the bottom surface of the connecting plate is fixedly conn