Search

CN-224226517-U - Portal crane anticollision automatic stop device

CN224226517UCN 224226517 UCN224226517 UCN 224226517UCN-224226517-U

Abstract

The utility model relates to the technical field of cranes, in particular to an anti-collision automatic stop device for a gantry crane, which comprises a travelling crane, an anti-collision mechanism and a braking mechanism, wherein the travelling crane is arranged at the lower end of a gantry crane supporting leg, the anti-collision mechanism is arranged at the end part of the travelling crane, the braking mechanism consists of an infrared distance measuring sensor and a second brake pad arranged on the side wall of a U-shaped frame, the second brake pad is driven by a hydraulic rod arranged on the U-shaped frame, and the second brake pad is arranged close to the side wall of a track. The utility model can detect and alarm in advance through the arrangement of the detector and the audible and visual alarm to remind a worker of making corresponding operation, avoid the obstacle from impacting the gantry crane, reduce loss and improve use safety, and is convenient for buffering the impact force of the obstacle and rapidly stopping the travelling crane through the arrangement of the anti-collision mechanism and the braking mechanism, thereby avoiding the collision between the gantry crane arranged on the travelling crane and the obstacle, improving use safety and prolonging service life.

Inventors

  • SHI FEI

Assignees

  • 石非

Dates

Publication Date
20260512
Application Date
20250612

Claims (6)

  1. 1. An anti-collision automatic stop device for a gantry crane, which is characterized by comprising The travelling crane (1) is arranged at the lower end of the landing leg of the gantry crane; An anti-collision mechanism arranged at the end part of the travelling crane (1), the anti-collision mechanism comprises The oil pipe (4) is detachably arranged at the end part of the travelling crane (1); One end of the driving component is in sliding connection with the inner wall of one end of the oil pipe (4), and the other end of the driving component extends to the outside of the oil pipe (4); The transmission assembly is slidably connected with the inner wall of the other end of the oil pipe (4), the U-shaped frame (703) is arranged at the other end of the transmission assembly, a first brake block (704) is arranged on the U-shaped frame (703), the first brake block (704) is arranged right above the track, hydraulic oil is arranged in the oil pipe (4) and between the driving assembly and the transmission assembly; and the braking mechanism is composed of an infrared distance measuring sensor (6) and a second brake pad (801) arranged on the side wall of the U-shaped frame (703), the second brake pad (801) is driven by a hydraulic rod (8) arranged on the U-shaped frame (703), and the second brake pad (801) is arranged close to the side wall of the rail.
  2. 2. The anti-collision automatic stop device of the gantry crane according to claim 1, wherein the oil pipe (4) is L-shaped, the installation seat (3) is arranged on the oil pipe (4), and the installation seat (3) is detachably connected with the end part of the crane (1) through bolts.
  3. 3. The device of claim 2, wherein the drive assembly comprises A first piston plate (5) which is slidably connected to the inner wall of the oil pipe (4) in the horizontal direction; one end of the buffer rod (501) penetrates into the oil pipe (4) and is connected with the first piston plate (5), and the other end of the buffer rod (501) extends to the outside of the oil pipe (4) and is provided with an anti-collision plate (502); And a first elastic member (503) having one end attached to one end of the oil pipe (4) and the other end attached to the crash panel (502).
  4. 4. A portal crane collision avoidance automatic stop motion as claimed in claim 3, wherein the drive assembly comprises A second piston plate (7) which is slidably connected to the inner wall of the oil pipe (4) in the vertical direction; One end of the transmission rod (701) is connected with the second piston plate (7), and the other end of the transmission rod extends to the outside of the oil pipe (4) and is connected with the U-shaped frame (703); And a second elastic member (702), one end of which is installed at the other end of the oil pipe (4), and the other end of which is installed on the U-shaped frame (703), wherein the second elastic member (702) is provided with a buffer spring, and the second elastic member (702) is movably sleeved outside the transmission rod (701).
  5. 5. A gantry crane collision avoidance automatic stop device according to claim 3, characterized in that the infrared distance measuring sensor (6) consists of an infrared transmitter and an infrared receiver, the top end of the oil pipe (4) and the top end of the collision avoidance plate (502) are both provided with extension plates (601), and the infrared transmitter and the infrared receiver are respectively mounted on the two sets of extension plates (601).
  6. 6. The automatic stop device for the collision avoidance of the gantry crane according to claim 1, wherein a detector (2) and an audible and visual alarm (201) are arranged at the top end of the crane (1), and the audible and visual alarm (201) and the detector (2) are electrically connected with the controller.

Description

Portal crane anticollision automatic stop device Technical Field The utility model relates to the technical field of cranes, in particular to an anti-collision automatic stop device for a gantry crane. Background In bridge engineering, the construction of the superstructure precast beam slab needs to build precast beam fields, and when the beam slab is manufactured and transported, gantry crane lifting equipment is needed to be used for lifting the steel reinforcement framework and the beam slab, so that the field operation environment is complex, and if the construction management is improper, serious casualties and economic losses can be caused. The Chinese patent with the bulletin number of CN220723366U discloses a portal crane anti-collision automatic stop device, belongs to the technical field of cranes, and comprises a traveling crane, wherein the traveling crane is used for enabling the portal crane to travel on a track, a limit switch is arranged at the end part of the traveling crane, a brake assembly is further arranged at the end part of the traveling crane, the brake assembly further comprises a motor, and when a threaded rod rotates, a guide cylinder is driven to move along a guide groove. The utility model adopts the piezoelectric switch to replace the wireless detector, greatly reduces the possibility of false alarm, and can rapidly increase the friction between the travelling crane and the track after detecting the obstacle by using the braking device, so that the travelling crane is rapidly braked, and the braking distance is shortened. However, the disclosed scheme has the defects that the traveling crane provided with the gantry crane is stopped after collision through the arrangement of the limit switch, and if the collision force is large, the limit switch and the gantry crane are easily damaged, so that the service life is reduced. Disclosure of utility model The utility model aims to solve the problems in the background technology and provides an anti-collision automatic stop device for a gantry crane. The technical scheme includes that the anti-collision automatic stop device of the gantry crane comprises a crane, an anti-collision mechanism, a driving assembly and a transmission assembly, wherein the anti-collision mechanism is arranged at the lower end of a gantry crane supporting leg and comprises an oil pipe, the anti-collision mechanism is detachably arranged at the end of the crane, one end of the driving assembly is in sliding connection with the inner wall of one end of the oil pipe, the other end of the driving assembly extends to the outside of the oil pipe, one end of the transmission assembly is in sliding connection with the inner wall of the other end of the oil pipe, a U-shaped frame is arranged at the other end of the transmission assembly, a first brake pad is arranged above a track, the first brake pad is arranged in the oil pipe and is arranged between the driving assembly and the transmission assembly, the braking mechanism is composed of an infrared distance measuring sensor and a second brake pad arranged on the side wall of the U-shaped frame, and the second brake pad is driven by a hydraulic rod arranged on the U-shaped frame and is arranged close to the side wall of the track. Preferably, the oil pipe is L-shaped, the oil pipe is provided with a mounting seat, and the mounting seat is detachably connected with the end part of the crane through a bolt. Preferably, the driving assembly comprises a first piston plate which is in sliding connection with the inner wall of the oil pipe in the horizontal direction, a buffer rod, one end of which penetrates through the oil pipe to be connected with the first piston plate, the other end of which extends to the outside of the oil pipe to be provided with an anti-collision plate, and a first elastic piece, one end of which is arranged at one end of the oil pipe, and the other end of which is arranged on the anti-collision plate. Preferably, the transmission assembly comprises a second piston plate which is in sliding connection with the inner wall of the oil pipe in the vertical direction, a transmission rod, one end of which is connected with the second piston plate, the other end of which extends to the outside of the oil pipe and is connected with the U-shaped frame, and a second elastic piece, one end of which is arranged at the other end of the oil pipe, the other end of which is arranged on the U-shaped frame, wherein the second elastic piece is provided with a buffer spring, and the second elastic piece is movably sleeved outside the transmission rod. Preferably, the infrared distance measuring sensor is composed of an infrared transmitter and an infrared receiver, the top end of the oil pipe and the top end of the anti-collision plate are respectively provided with an extension plate, and the infrared transmitter and the infrared receiver are respectively arranged on the two groups of extension plates. Preferabl