Shipyard portal crane rail anti-extrusion structure

Abstract

The utility model discloses a shipyard portal crane rail anti-extrusion structure which comprises a portal crane body and two sets of underframes, the bottom end of the portal crane body is provided with two sets of underframes, the bottom ends of the underframes are provided with two sets of walking wheels, the walking wheels are movably connected with the underframes, the side walls of the underframes are provided with walking motors, and the walking motors are connected with the underframes. The output end of the walking motor is connected with a set of bottom frames, track bodies are arranged below the bottom frames, the track bodies are slidably connected with walking wheels, two sets of integrated boxes are installed at the positions, on one sides of the walking wheels, of the bottom ends of the bottom frames, and worms are movably installed in the integrated boxes; and a servo motor is mounted on the inner wall of the integration box on one side of each worm. According to the multi-position linkage supporting device, convenient and fast multi-position linkage weight sharing and convenient and fast linkage adjustment lateral supporting are achieved, multi-position dispersion of pressure borne by the track is facilitated, lateral extrusion borne by the track is reduced, and the extrusion deformation prevention capacity of the track is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-extrusion structures, in particular to an anti-extrusion structure for a shipyard gantry crane track. Background Art

[0002] A gantry crane is a portal crane. Most gantry cranes run along crane tracks on the ground or buildings to perform lifting and loading and unloading operations. Due to the large size of gantry cranes, they require track-assisted operation. Traditional tracks are mostly laid on the ground, and the gantry crane moves on its surface. In order to prevent it from being squeezed, a shipyard gantry crane track anti-extrusion structure is proposed.

[0003] For example, an anti-stuck running structure of a shipyard gantry crane track disclosed in the authorization announcement number CN213677082U comprises a supporting fixed base and a shipyard gantry crane slide plate, wherein a No. 1 limiting slide groove is provided at the upper end of the supporting fixed base, a No. 2 limiting slide groove is provided at the right end of the No. 1 limiting slide groove, a No. 1 fixed bottom block is installed at one end of the No. 2 limiting slide groove away from the No. 1 limiting slide groove, a No. 1 force spring is installed at the left end of the No. 1 fixed bottom block, a No. 1 limit slider is installed at one end of the No. 1 force spring away from the No. 1 fixed bottom block, an anti-stuck pressing block is installed at one end of the No. 1 limit slider away from the No. 1 force spring, and a No. 3 limit slider is installed at the lower end of the No. 1 limiting slide groove;

[0004] Although it realizes the anti-stuck running structure of the shipyard gantry crane track, the No. 1 limit slide block and the No. 2 limit slide groove are set to match each other, so that the supporting fixed base has a good anti-stuck device, thereby improving the use performance;

[0005] However, the problem that the existing anti-extrusion structure is not conducive to convenient multi-position linkage to share weight and convenient linkage adjustment of lateral support during use, is not conducive to multi-position dispersion of track pressure and reduction of lateral extrusion of the track, and affects the ability of the track to prevent extrusion deformation. Utility Model Content

[0006] The purpose of the utility model is to provide a shipyard gantry crane track anti-extrusion structure to solve the problem that the anti-extrusion structure proposed in the above background technology is not convenient for multi-position linkage to share weight and convenient linkage adjustment of lateral support, is not conducive to multi-position dispersion of track pressure and reduction of lateral extrusion of the track, and affects the ability of the track to prevent extrusion deformation.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shipyard gantry crane track anti-extrusion structure, comprising a gantry crane body and a base frame, two groups of base frames are arranged at the bottom end of the gantry crane body, two groups of walking wheels are installed at the bottom end of the base frame, and the walking wheels are movably connected to the base frame, a walking motor is installed on the side wall of the base frame, and the output end of the walking motor is connected to a group of base frames, a track body is arranged below the base frame, and the track body is slidably connected to the walking wheels, two groups of integrated boxes are installed at the bottom end of the base frame on one side of the walking wheels, a worm is movably installed inside the integrated box, a servo motor is installed on the inner wall of the integrated box on one side of the worm, and the output end of the servo motor is connected to the worm, a movable shaft is movably installed inside the integrated box on one side of the worm, a worm wheel is mounted on the surface of the movable shaft, and the worm wheel and the worm are meshed with each other, a rotating rod is installed at one end of the movable shaft, and the rotating rod is movably connected to the integrated box.

[0008] Preferably, a rotating frame is installed at one end of the rotating rod away from the integrated box, a clamping shaft is installed at one side of the rotating frame close to the rotating rod, and the rotating frame is movably connected to the rotating rod through the clamping shaft.

[0009] Preferably, a connecting arm is installed at the top of the rotating frame, a hinge shaft is installed at one end of the connecting arm close to the rotating frame, and the connecting arm is movably connected to the rotating frame through the hinge shaft.

[0010] Preferably, a linkage shaft is installed at one end of the connecting arm away from the hinge shaft, and the connecting arm is movably connected to the rotating rod through the linkage shaft, and a first auxiliary wheel is movably installed at the bottom end of the rotating frame.

[0011] Preferably, two groups of support blocks are installed on the side wall of the chassis on one side of the travel motor, a first hydraulic cylinder is movably installed inside the support block, and a push arm is installed at the output end of the first hydraulic cylinder.

[0012] Preferably, a rotating arm is installed on one side of the support block, a pin is installed on one end of the rotating arm close to the support block, and the rotating arm is movably connected to the support block through the pin, and the push arm is movably connected to the rotating arm.

[0013] Preferably, a vertical sleeve is installed at one end of the rotating arm away from the supporting block, and a second hydraulic cylinder is installed inside the vertical sleeve.

[0014] Preferably, the output ends of the second hydraulic cylinders are all equipped with telescopic arms, and the bottom ends of the telescopic arms are all movably equipped with second auxiliary wheels.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the anti-extrusion structure not only realizes convenient multi-position linkage to share weight and convenient linkage adjustment of lateral support, facilitates multi-position dispersion of track pressure and reduces lateral extrusion of the track, but also improves the ability of the track to prevent extrusion deformation;

[0016] (1) A group of traveling wheels are driven to rotate by a traveling motor, and another group of traveling wheels and the track body are slidably matched, so that the traveling wheels drive the base frame to move on the track body surface, and the base frame drives the gantry machine body to move. When the weight of the cargo lifted by the gantry machine body increases, the servo motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the movable shaft to rotate, the movable shaft drives the rotating rod to rotate, and the rotating rod drives the first auxiliary wheel to rotate, so that the first auxiliary wheel rotates to the surface of the track body. Under the support of the rotating rod, the first auxiliary wheel drives the rotating frame to rotate with the clamping shaft as the axis, and at the same time, the rotating frame drives the connecting arm to rotate with the linkage shaft as the axis through the hinge shaft, so that the first auxiliary wheel shares the weight borne by the traveling wheel, so as to prevent the traveling wheel from excessively extruding the track body to cause the track body to be extruded and deformed in the vertical range, thereby realizing convenient multi-position linkage weight sharing, facilitating the multi-position dispersion of the track pressure, and improving the vertical anti-extrusion deformation capability of the track;

[0017] (2) The push arm is driven by the first hydraulic cylinder to move, the push arm drives the rotating arm to rotate with the pin shaft as the axis, the pin shaft drives the vertical sleeve to rotate, the second hydraulic cylinder drives the telescopic arm to move downward, and the telescopic arm drives the second auxiliary wheel to move downward and contact the ground, so as to provide lateral sliding support for the door machine body from both sides, and prevent the door machine body from lateral squeezing the track, thereby realizing convenient linkage adjustment of lateral support, facilitating the reduction of lateral squeezing of the track, and improving the anti-squeezing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the base frame of the utility model;

[0020] Figure 3 It is a front view cross-sectional structural schematic diagram of the integrated box of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating arm of the utility model;

[0022] Figure 5 It is a schematic diagram of the side cross-sectional structure of the vertical sleeve of the utility model.

[0023] In the figure: 1. gantry machine body; 2. travel motor; 3. base frame; 4. travel wheel; 5. support block; 6. track body; 7. integrated box; 8. servo motor; 9. worm gear; 10. movable shaft; 11. worm; 12. rotating rod; 13. linkage shaft; 14. connecting arm; 15. hinge shaft; 16. rotating frame; 17. first auxiliary wheel; 18. clamping shaft; 19. pin shaft; 20. first hydraulic cylinder; 21. push arm; 22. rotating arm; 23. second auxiliary wheel; 24. vertical sleeve; 25. second hydraulic cylinder; 26. telescopic arm. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides an embodiment: a shipyard gantry track anti-extrusion structure, including a gantry body 1 and a base frame 3, the bottom end of the gantry body 1 is provided with two groups of base frames 3, the bottom ends of the base frames 3 are both equipped with two groups of walking wheels 4, and the walking wheels 4 are movably connected to the base frames 3, and the side walls of the base frames 3 are equipped with walking motors 2, the walking motors 2 play a role of power drive, and the output end of the walking motors 2 is connected to a group of base frames 3, and the bottom of the base frames 3 is provided with track bodies 6, and the track bodies 6 are slidably connected to the walking wheels 4, and the bottom of one side of the walking wheels 4 is provided with a track body 6. Two groups of integrated boxes 7 are installed at the bottom end of the frame 3, and a worm 11 is movably installed inside the integrated box 7. A servo motor 8 is installed on the inner wall of the integrated box 7 on one side of the worm 11. The servo motor 8 plays a role of power drive, and the output end of the servo motor 8 is connected to the worm 11. A movable shaft 10 is movably installed inside the integrated box 7 on one side of the worm 11. The surface of the movable shaft 10 is covered with a worm wheel 9, and the worm wheel 9 and the worm 11 are meshed with each other. A rotating rod 12 is installed at one end of the movable shaft 10, and the rotating rod 12 is movably connected to the integrated box 7;

[0026] First, the structure is connected to the external controller and the external circuit. After the door machine body 1 lifts the cargo, the travel motor 2 is turned on, and the travel motor 2 drives a group of travel wheels 4 to rotate. Under the sliding cooperation between the other group of travel wheels 4 and the track body 6, the travel wheels 4 drive the base frame 3 to move on the surface of the track body 6, and the base frame 3 drives the door machine body 1 to move. When the weight of the cargo lifted by the door machine body 1 increases, the servo motor 8 is turned on by the external control, and the servo motor 8 drives the worm 11 to rotate. Under the mutual meshing of the worm 11 and the worm wheel 9, the worm 11 drives the worm wheel 9 to rotate. Under the support of the integrated box 7, the worm wheel 9 drives the movable shaft 10 to rotate, and the movable shaft 10 drives The movable rotating rod 12 rotates, and the rotating rod 12 drives the first auxiliary wheel 17 to rotate, so that the first auxiliary wheel 17 rotates to the surface of the track body 6. Under the support of the rotating rod 12, the first auxiliary wheel 17 drives the rotating frame 16 to rotate with the clamping shaft 18 as the axis. At the same time, the rotating frame 16 drives the connecting arm 14 to rotate with the linkage shaft 13 as the axis through the hinge shaft 15, so that the first auxiliary wheel 17 shares the weight borne by the running wheel 4, so as to prevent the running wheel 4 from excessively squeezing the track body 6 to cause the track body 6 to be squeezed and deformed in the vertical range, thereby realizing convenient multi-position linkage to share weight, facilitating the multi-position dispersion of the track pressure, and improving the track's ability to prevent vertical squeezing and deformation;

[0027] A rotating frame 16 is installed at one end of the rotating rod 12 away from the integrated box 7, and a clamping shaft 18 is installed on the side of the rotating frame 16 close to the rotating rod 12, and the rotating frame 16 is movably connected to the rotating rod 12 through the clamping shaft 18. A connecting arm 14 is installed at the top of the rotating frame 16, and a hinge shaft 15 is installed at one end of the connecting arm 14 close to the rotating frame 16, and the connecting arm 14 is movably connected to the rotating frame 16 through the hinge shaft 15;

[0028] The end of the connecting arm 14 away from the hinge shaft 15 is equipped with a linkage shaft 13, and the connecting arm 14 is movably connected to the rotating rod 12 through the linkage shaft 13, and the bottom end of the rotating frame 16 is movably equipped with a first auxiliary wheel 17;

[0029] Two sets of support blocks 5 are installed on the side wall of the chassis 3 on one side of the travel motor 2. The first hydraulic cylinder 20 is movably installed inside the support block 5. The first hydraulic cylinder 20 plays a role of power drive. The output end of the first hydraulic cylinder 20 is installed with a push arm 21.

[0030] A rotating arm 22 is installed on one side of the support block 5, and a pin 19 is installed on one end of the rotating arm 22 close to the support block 5, and the rotating arm 22 is movably connected to the support block 5 through the pin 19, and the push arm 21 is movably connected to the rotating arm 22, and a vertical sleeve 24 is installed on one end of the rotating arm 22 away from the support block 5, and a second hydraulic cylinder 25 is installed inside the vertical sleeve 24, and the second hydraulic cylinder 25 plays a role of power drive;

[0031] The output ends of the second hydraulic cylinders 25 are all equipped with telescopic arms 26, and the bottom ends of the telescopic arms 26 are all movably equipped with second auxiliary wheels 23;

[0032] When strong winds occur and the door machine body 1 tilts and deviates, the first hydraulic cylinder 20 is opened through external control, and the first hydraulic cylinder 20 drives the push arm 21 to move. Under the support of the support block 5, the push arm 21 drives the rotating arm 22 to rotate about the pin shaft 19, and the pin shaft 19 drives the vertical sleeve 24 to rotate. The second hydraulic cylinder 25 is opened through external control, and the second hydraulic cylinder 25 drives the telescopic arm 26 to move downward, and the telescopic arm 26 drives the second auxiliary wheel 23 to move downward and contact the ground, so as to provide lateral sliding support for the door machine body 1 from both sides, and at the same time prevent the door machine body 1 from lateral squeezing the track, thereby realizing convenient linkage adjustment of lateral support, facilitating the reduction of lateral squeezing of the track, and improving the anti-squeezing effect.

[0033] Working principle: First, the travel motor 2 drives a group of travel wheels 4 to rotate. Under the sliding cooperation between the other group of travel wheels 4 and the track body 6, the travel wheels 4 drive the base frame 3 to move on the surface of the track body 6, and the base frame 3 drives the door machine body 1 to move. When the weight of the cargo lifted by the door machine body 1 increases, the servo motor 8 drives the worm 11 to rotate, the worm 11 drives the worm wheel 9 to rotate, the worm wheel 9 drives the movable shaft 10 to rotate, the movable shaft 10 drives the rotating rod 12 to rotate, and the rotating rod 12 drives the first auxiliary wheel 17 to rotate, so that the first auxiliary wheel 17 rotates to the surface of the track body 6. Under the support of the rotating rod 12, the first auxiliary wheel 17 drives the rotating frame 16 to rotate with the clamping shaft 18 as the axis, and at the same time, the rotating frame 16 passes The hinge shaft 15 drives the connecting arm 14 to rotate around the linkage shaft 13, so that the first auxiliary wheel 17 shares the weight borne by the traveling wheel 4, so as to prevent the traveling wheel 4 from excessively squeezing the track body 6 so as to cause the track body 6 to be squeezed and deformed in the vertical range. The first hydraulic cylinder 20 drives the push arm 21 to move, and the push arm 21 drives the rotating arm 22 to rotate around the pin shaft 19, and the pin shaft 19 drives the vertical sleeve 24 to rotate. The second hydraulic cylinder 25 drives the telescopic arm 26 to move downward, and the telescopic arm 26 drives the second auxiliary wheel 23 to move downward and contact the ground, so as to provide lateral sliding support to the gantry body 1 from both sides, and at the same time prevent the gantry body 1 from lateral squeezing the track, so as to complete the use of the shipyard gantry track anti-extrusion structure.

Claims

1. A shipyard gantry crane track anti-extrusion structure, comprising a gantry crane body (1) and a base frame (3), characterized in that: Two groups of base frames (3) are arranged at the bottom end of the door machine body (1), two groups of running wheels (4) are installed at the bottom end of the base frames (3), and the running wheels (4) are movably connected to the base frames (3), a running motor (2) is installed on the side wall of the base frames (3), and the output end of the running motor (2) is connected to one group of base frames (3), a track body (6) is arranged below the base frames (3), and the track body (6) is slidably connected to the running wheels (4), and two groups of integrated boxes (7) are installed at the bottom end of the base frames (3) on one side of the running wheels (4), and the integrated boxes (7) are installed on the bottom end of the base frames (3) on one side of the running wheels (4). A worm (11) is movably mounted inside the integrated box (7), a servo motor (8) is mounted on the inner wall of the integrated box (7) on one side of the worm (11), and the output end of the servo motor (8) is connected to the worm (11), a movable shaft (10) is movably mounted inside the integrated box (7) on one side of the worm (11), a worm wheel (9) is mounted on the surface of the movable shaft (10), and the worm wheel (9) and the worm (11) are meshed with each other, and a rotating rod (12) is mounted on one end of the movable shaft (10), and the rotating rod (12) is movably connected to the integrated box (7).

2. The shipyard gantry crane track anti-extrusion structure according to claim 1, characterized in that: A rotating frame (16) is installed at one end of the rotating rod (12) away from the integrated box (7), and a clamping shaft (18) is installed at one side of the rotating frame (16) close to the rotating rod (12), and the rotating frame (16) is movably connected to the rotating rod (12) via the clamping shaft (18).

3. The shipyard gantry crane track anti-extrusion structure according to claim 2 is characterized by: A connecting arm (14) is installed at the top of each rotating frame (16), and a hinge shaft (15) is installed at one end of each connecting arm (14) close to the rotating frame (16), and the connecting arm (14) is movably connected to the rotating frame (16) via the hinge shaft (15).

4. The shipyard gantry crane track anti-extrusion structure according to claim 3 is characterized by: A linkage shaft (13) is installed at one end of the connecting arm (14) away from the hinge shaft (15), and the connecting arm (14) is movably connected to the rotating rod (12) via the linkage shaft (13), and a first auxiliary wheel (17) is movably installed at the bottom end of the rotating frame (16).

5. The shipyard gantry crane track anti-extrusion structure according to claim 1, characterized in that: Two groups of support blocks (5) are installed on the side wall of the chassis (3) on one side of the travel motor (2), a first hydraulic cylinder (20) is movably installed inside the support block (5), and a push arm (21) is installed at the output end of the first hydraulic cylinder (20).

6. The shipyard gantry crane track anti-extrusion structure according to claim 5, characterized in that: A rotating arm (22) is mounted on one side of the support block (5), a pin shaft (19) is mounted on one end of the rotating arm (22) close to the support block (5), and the rotating arm (22) is movably connected to the support block (5) via the pin shaft (19), and the push arm (21) is movably connected to the rotating arm (22).

7. The shipyard gantry crane track anti-extrusion structure according to claim 6, characterized in that: A vertical sleeve (24) is installed at one end of the rotating arm (22) away from the supporting block (5), and a second hydraulic cylinder (25) is installed inside the vertical sleeve (24).

8. The shipyard gantry crane track anti-extrusion structure according to claim 7, characterized in that: The output end of each of the second hydraulic cylinders (25) is equipped with a telescopic arm (26), and the bottom end of each of the telescopic arms (26) is movably equipped with a second auxiliary wheel (23).

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