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CN-224212305-U - Height-adjustable electric hoist gantry crane

CN224212305UCN 224212305 UCN224212305 UCN 224212305UCN-224212305-U

Abstract

The utility model relates to the technical field of portal cranes, in particular to an electric hoist portal crane with an adjustable height, which comprises a ground track, an operating mechanism, a rail beam and an electric hoist, wherein an adjusting base comprises a cylindrical box body fixedly connected to the top surface of the operating mechanism, shaft rods with two ends sleeved at the middle parts of the top ends of the front wall and the rear wall of the cylindrical box body in a rotating mode, gears fixedly sleeved at the two ends of the shaft rods, and a lifting motor with a power output shaft fixedly butted with the front end of the shaft rods, a lifting seat is sleeved in the cylindrical box body in a sliding mode, the middle part of the cylindrical box body is provided with a middle vertical groove which is vertically and slidably clamped with the shaft rods, side grooves are respectively arranged at the middle parts of the front wall and the rear wall of the lifting seat and correspond to the gears in the vertical direction, racks meshed with the gears are fixedly arranged on one side wall of the side grooves, the bottom end of the side frame is fixedly connected to the top of the lifting seat, the end seat is fixedly arranged on the top of the side frame, and two ends of the rail beam are fixedly arranged on the top of the end seat respectively, so that the working height of the electric hoist portal crane can be flexibly adjusted.

Inventors

  • HUANG HAO

Assignees

  • 维特起重设备(合肥)有限公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (5)

  1. 1. The utility model provides a height-adjustable's electric hoist gantry crane, includes ground track (1) that set up in pairs, along running gear (2), rail roof beam (3) and along electric hoist (4) of rail roof beam (3) walking of ground track (1), its characterized in that still includes: The adjusting base (5) comprises a cylindrical box body (5.1) with the bottom end fixedly connected to the middle of the top surface of the operating mechanism (2), a shaft rod (5.2) with the two ends rotatably sleeved at the middle of the top end of the front wall and the rear wall of the cylindrical box body (5.1), gears (5.3) fixedly sleeved at the positions, close to the two ends, of the shaft rod (5.2) and a lifting motor (5.4) fixedly sleeved on the front wall of the cylindrical box body (5.1) and fixedly butted with the front end of the shaft rod (5.2) through a power output shaft; The lifting seat (6), the lifting seat (6) is sleeved in the cylindrical box body (5.1) in a sliding manner, a middle vertical groove (6.3) which is clamped with the shaft rod (5.2) in a vertical sliding manner is formed in the middle of the cylindrical box body (5.1), side grooves (6.1) are respectively formed in the middle of the front wall and the rear wall of the lifting seat (6) in the vertical direction at positions corresponding to the gears (5.3), and racks (6.2) meshed with the gears (5.3) are fixed on one side wall of the side grooves (6.1); The bottom end of the side frame (7) is fixedly connected to the top of the lifting seat (6); the end seat (8), end seat (8) are fixed in side bearer (7) top, and rail beam (3) both ends are fixed in respectively the top of end seat (8).
  2. 2. The height-adjustable electric hoist portal crane of claim 1, characterized in that limiting pieces (5.6) capable of locking the racks (6.2) are respectively arranged in the middle of the top ends of the front wall and the rear wall of the inner cavity of the cylindrical box body (5.1).
  3. 3. The electric hoist gantry crane with adjustable height according to claim 2, wherein the limiting piece (5.6) comprises an L-shaped plate (5.6.1) fixed at the middle of the top end of the front wall and the rear wall of the inner cavity of the cylindrical box body (5.1), a latch (5.6.2) arranged on the outer side of a vertical plate of the L-shaped plate (5.6.1) and corresponding to the rack (6.2), a limiting bolt (5.6.3) rotationally sleeved on the inner side wall of the latch (5.6.2) and sleeved with the vertical plate of the L-shaped plate (5.6.1) in a threaded manner, and a guide rod (5.6.4) fixed on the inner side wall of the latch (5.6.2) and sleeved with the L-shaped plate (5.6.1) in a sliding manner.
  4. 4. The height-adjustable electric hoist portal crane of claim 1, wherein guide rails (5.5) are respectively vertically fixed at the middle parts of two side walls of an inner cavity of the cylindrical box body (5.1), and clamping grooves (6.4) which are vertically and slidably clamped with the guide rails (5.5) are respectively arranged on two side walls of the lifting seat (6).
  5. 5. The height-adjustable electric hoist portal crane of claim 1, characterized in that a rectangular groove (2.1) which is opposite to the bottom end of the inner cavity of the cylindrical box body (5.1) and is matched with the bottom of the lifting seat (6) in a sliding sleeve joint manner is arranged in the middle of the top surface of the running mechanism (2).

Description

Height-adjustable electric hoist gantry crane Technical Field The utility model relates to the technical field of gantry cranes, in particular to a height-adjustable electric hoist gantry crane. Background Gantry cranes are lifting devices widely used in the industry, and are generally supported by a bridge frame through two side legs to travel on a ground track. Structurally, the crane comprises a portal, a running mechanism, a crane trolley, a ground track and the like, wherein the crane trolley mostly adopts an electric hoist. At present, the height of a portal frame in a common electric hoist gantry crane is generally fixed, namely, the working height of the crane is difficult to adjust, the suitability is poor, and the requirements of different operation sites on the working height of the gantry crane cannot be met. Disclosure of utility model The utility model aims to provide an electric hoist gantry crane with adjustable height, which is used for solving the problem that the working height of the existing electric hoist gantry crane is difficult to flexibly adjust. The electric hoist gantry crane comprises ground rails, a running mechanism, rail beams and an electric hoist, wherein the ground rails, the running mechanism, the rail beams and the electric hoist are arranged in pairs, the running mechanism, the rail beams and the electric hoist are arranged along the rail beams, the regulating base comprises a cylindrical box body, two ends of the cylindrical box body are fixedly connected to the middle of the top surface of the running mechanism, a shaft rod, gears and a lifting motor, the two ends of the shaft rod are fixedly sleeved on the middle of the top end of the front wall of the cylindrical box body, the gears are fixedly sleeved on the front wall of the cylindrical box body, a power output shaft of the lifting motor is fixedly abutted to the front end of the shaft rod, the middle vertical grooves are formed in the middle of the cylindrical box body and are in vertical sliding clamping connection with the shaft rod, side grooves are respectively formed in the middle of the front wall and the rear wall of the lifting seat along the vertical direction, racks meshed with the gears are fixedly arranged on one side walls of the side grooves, the bottom ends of the side frames are fixedly connected to the top of the lifting seat, the top of the side frames are fixedly sleeved on the top of the side frames, and the top ends of the side frames are fixedly connected to the top of the side frames respectively. Preferably, the middle parts of the top ends of the front wall and the rear wall of the inner cavity of the cylindrical box body are respectively provided with a limiting piece which can clamp the rack. Preferably, the limiting part comprises an L-shaped plate fixed at the middle part of the top end of the front wall and the rear wall of the inner cavity of the cylindrical box body, a latch which is arranged at the outer side of the vertical plate of the L-shaped plate and corresponds to the rack, a limiting bolt which is rotationally sleeved on the inner side wall of the latch and is in threaded sleeve connection with the vertical plate of the L-shaped plate, and a guide rod which is fixed on the inner side wall of the latch and is in sliding sleeve connection with the L-shaped plate. Preferably, guide rails are vertically fixed at the middle parts of two side walls of the inner cavity of the cylindrical box body respectively, and clamping grooves which are clamped with the guide rails in a vertical sliding manner are formed in the two side walls of the lifting seat respectively. Preferably, a rectangular groove which is opposite to the bottom end of the inner cavity of the cylindrical box body and is matched with the bottom of the lifting seat in a sliding sleeve joint manner is formed in the middle of the top surface of the operating mechanism. Compared with the prior art, the utility model has the beneficial effects that: The height-adjustable electric hoist gantry crane can flexibly adjust the vertical moving distance of the lifting seat relative to the adjusting base through the gear and rack meshing transmission mechanism, thereby better solving the problem that the working height of the electric hoist gantry crane is difficult to flexibly adjust. Drawings FIG. 1 is a schematic perspective view of the whole structure of the present utility model; FIG. 2 is a schematic perspective view of the running gear of the present utility model; FIG. 3 is a schematic perspective view of an adjusting base of the present utility model; FIG. 4 is a schematic perspective view of a limiting member according to the present utility model; FIG. 5 is a schematic perspective view of a lifting seat according to the present utility model; FIG. 6 is a schematic perspective view of a side frame of the present utility model; Fig. 7 is a schematic perspective view of an end socket according to the present utility mode