Gantry crane walking structure

Abstract

The utility model discloses a gantry crane walking structure which comprises a walking track, walking wheels, a limiting mechanism and an adjusting mechanism, the limiting mechanism is used for forming a blocking structure on the walking track and limiting and fixing the walking wheels, and the adjusting mechanism is used for forming a moving structure on the limiting mechanism and adjusting the limiting mechanism. The bolt is rotated on the fixing block, so that the bolt drives the limiting block to move in the horizontal direction, the position of the limiting block is adjusted, it is guaranteed that the limiting block is aligned with the walking wheel in position, then the screw is rotated, the extrusion blocks at the two ends of the screw move in the opposite directions, and the extrusion blocks move in the horizontal direction; the inclined plane of the top extrudes the inclined plane of the bottom of the movable block, so that the movable block and the limiting block move upwards together, the outer wall of the limiting block is attached to the outer wall of the walking wheel, the walking wheel is limited and fixed, the phenomenon of deviation of the walking wheel is prevented, and the stability of the walking wheel is improved.

Description

Technical Field

[0001] The utility model relates to the field of cranes, in particular to a walking structure of a portal crane. Background Art

[0002] Gantry cranes usually run along crane tracks on the ground or on buildings to carry out lifting and loading and unloading operations. The crane moves along the track via traveling wheels to carry heavy objects.

[0003] Common gantry cranes are huge in size. The crane moves to a specific position along the travel track. As the crane stops moving, the heavy objects are loaded and unloaded. Since the heavy objects are prone to swing during the loading and unloading process, the center of gravity between the crane and the heavy objects is affected, causing the center of gravity of the crane to shift, causing the position of the crane's traveling wheels to shift, affecting the stability of the crane and the traveling wheels. Utility Model Content

[0004] The purpose of the utility model is to provide a traveling structure of a portal crane to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a walking structure of a portal crane, comprising a walking track;

[0006] Traveling wheels, the traveling wheels are arranged on the traveling track;

[0007] It also includes a limiting mechanism, which is arranged on the walking track and is used to form a blocking structure on the walking track and to limit and fix the walking wheel;

[0008] The adjusting mechanism is arranged on the limiting mechanism, and is used to form a moving structure on the limiting mechanism and to adjust the limiting mechanism.

[0009] Preferably, the limiting mechanism comprises:

[0010] A fixing frame, the fixing frame being fixedly connected to one side of the outer wall of the walking track;

[0011] A movable block, the top of which is slidably connected with the fixed frame, and the bottom of which is inclined;

[0012] A limit block is arranged on the top of the movable block, and the limit block corresponds to the position of the walking wheel.

[0013] Preferably, the limiting mechanism further includes:

[0014] A screw rod, both ends of which are rotatably interlaced with the fixing frame, and the screw rod is arranged below the movable block;

[0015] An extrusion block, wherein the extrusion block is threadedly connected to one end of the screw rod, and the upper surface of the extrusion block is in contact with the lower surface of the movable block;

[0016] A through groove is arranged at the bottom of the movable block, and an inner cavity of the through groove is slidably and interlacedly connected with one end of the screw rod.

[0017] Preferably, the adjustment mechanism comprises:

[0018] A fixed block, the lower surface of which is fixedly connected to the upper surface of the movable block;

[0019] The mounting groove is arranged on the limiting block, and the inner cavity of the mounting groove is slidably and interlacedly connected with the fixing block.

[0020] Preferably, the adjustment mechanism further comprises:

[0021] A bolt, one end of which is threadably connected to the fixing block, and one end of which is rotatably connected to the inner wall of the mounting groove;

[0022] A clamping block is fixedly connected to the bottom of one side of the movable block, and is used to limit the movable block.

[0023] Preferably, the top of the extrusion block is arranged in an inclined surface, the lower surface of the limit block is fitted with the upper surface of the movable block, the lower surface of the extrusion block is fitted with the outer wall of the walking track, and one side of the limit block is arranged in an arc shape.

[0024] Technical effects and advantages of the utility model:

[0025] The utility model utilizes a setting mode in which a screw rod, an extrusion block, a movable block, a limit block, a fixed block and a bolt are matched. By rotating the bolt on the fixed block, the bolt drives the limit block to move in the horizontal direction, and the position of the limit block is adjusted to ensure that the limit block is aligned with the position of the travel wheel. Then the screw rod is rotated to make the extrusion blocks at both ends of the screw rod move toward each other. The extrusion block moves in the horizontal direction, and the inclined surface at the top is pressed against the inclined surface at the bottom of the movable block, so that the movable block and the limit block move upward together. The outer wall of the limit block is fitted with the outer wall of the travel wheel, and the travel wheel is limited and fixed to prevent the travel wheel from deviating, thereby improving the stability of the travel wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 It is a side structural diagram of the movable block of the utility model.

[0028] Figure 3It is a side sectional structural schematic diagram of the movable block of the utility model.

[0029] Figure 4 It is a schematic diagram of the side sectional structure of the fixing block of the utility model.

[0030] In the figure: 1. walking track; 2. walking wheel; 3. limiting mechanism; 31. fixing frame; 32. movable block; 33. limiting block; 34. screw; 35. extrusion block; 36. through slot; 4. adjusting mechanism; 41. fixing block; 42. mounting slot; 43. bolt; 44. clamping block. DETAILED DESCRIPTION

[0031] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0032] The utility model provides Figure 1-4 A gantry crane walking structure shown includes a walking track 1, a walking wheel 2, a limiting mechanism 3 and an adjusting mechanism 4. The walking track 1 is used to install the walking wheel 2 so that the walking wheel 2 moves along the walking track 1. The walking wheel 2 is arranged on the walking track 1. The walking wheel 2 is fixedly installed with the gantry crane to move the crane. The limiting mechanism 3 is arranged on the walking track 1. The limiting mechanism 3 is used to form a blocking structure on the walking track 1 and to limit and fix the walking wheel 2. The walking wheel 2 is limited by the limiting mechanism 3 to improve the stability of the walking wheel 2 and prevent the walking wheel 2 from deviating. The adjusting mechanism 4 is arranged on the limiting mechanism 3. The adjusting mechanism 4 is used to form a moving structure on the limiting mechanism 3 and to adjust the limiting mechanism 3. The position of the limiting mechanism 3 is adjusted by the adjusting mechanism 4 to facilitate the use of the limiting mechanism 3.

[0033] The movable block 32 is provided at the bottom of the movable block 32, and the movable block 32 is provided with an inclined surface. The movable block 32 moves vertically on the fixed frame 31. The limit block 33 is provided at the top of the movable block 32. The limit block 33 corresponds to the position of the walking wheel 2. By moving the limit block 33 upward, the outer wall of the limit block 33 is fitted with the outer wall of the walking wheel 2, and the walking wheel 2 is limited and fixed. The two ends of the screw 34 are respectively rotatably and interlacedly connected with the fixed frame 31. The screw 34 is provided below the movable block 32. The screw 34 is provided at the fixed frame 31. 1 is rotated, and opposite threads are provided at both ends of the screw rod 34 for driving the two extrusion blocks 35 to move horizontally. The extrusion block 35 is threadedly connected with one end of the screw rod 34, and the upper surface of the extrusion block 35 fits with the lower surface of the movable block 32. The extrusion block 35 is used to push the movable block 32 to move upward. By rotating the screw rod 34, the extrusion blocks 35 at both ends of the screw rod 34 move toward each other, and the extrusion block 35 moves in the horizontal direction. The inclined surface at the top is pressed against the inclined surface at the bottom of the movable block 32, so that the movable block 32 and the limit block 33 move upward together. The outer wall of the limit block 33 fits with the outer wall of the walking wheel 2 to limit and fix the walking wheel 2. The through groove 36 is arranged at the bottom of the movable block 32. The inner cavity of the through groove 36 is slidably and interlacedly connected with one end of the screw rod 34. The through groove 36 is used to install the screw rod 34 to facilitate the rotation of the screw rod 34.

[0034] Furthermore, the adjusting mechanism 4 includes a fixed block 41, a mounting groove 42, a bolt 43 and a clamping block 44. The lower surface of the fixed block 41 is fixedly connected to the upper surface of the movable block 32, and the fixed block 41 moves with the movable block 32. The mounting groove 42 is arranged on the limit block 33, and the inner cavity of the mounting groove 42 is slidably interlaced with the fixed block 41. The fixed block 41 is interlaced in the inner cavity of the mounting groove 42. One end of the bolt 43 is threadedly interlaced with the fixed block 41, and one end of the bolt 43 is rotatably connected to the inner wall of the mounting groove 42. The bolt 43 is threadedly rotated on the fixed block 41 to drive the limit block 33 to move in the horizontal direction, so as to adjust the position of the limit block 33. Adjustment is performed so that the limit block 33 is aligned with the position of the walking wheel 2, the clamping block 44 is fixedly connected to the bottom of one side of the movable block 32, the clamping block 44 is used to limit the movable block 32, and the clamping block 44 moves with the movable block 32 to prevent the movable block 32 from being separated from the fixed frame 31. The top of the extrusion block 35 is set in an inclined surface, the lower surface of the limit block 33 is in contact with the upper surface of the movable block 32, the lower surface of the limit block 33 is in contact with the upper surface of the fixed frame 31, and the lower surface of the extrusion block 35 is in contact with the outer wall of the walking track 1, which is used to stably support the limit block 33. One side of the limit block 33 is set in an arc shape, and the arc surface is used to fit the outer wall of the walking wheel 2.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A gantry crane walking structure, comprising: Walking track (1); A running wheel (2), wherein the running wheel (2) is arranged on the running track (1); The invention is characterized in that it also comprises a limiting mechanism (3), wherein the limiting mechanism (3) is arranged on the walking track (1), and the limiting mechanism (3) is used to form a blocking structure on the walking track (1) and to limit and fix the walking wheel (2); An adjusting mechanism (4), wherein the adjusting mechanism (4) is arranged on the limiting mechanism (3), and the adjusting mechanism (4) is used to form a movable structure on the limiting mechanism (3) and to adjust the limiting mechanism (3).

2. A gantry crane traveling structure according to claim 1, characterized in that: The limiting mechanism (3) comprises: A fixing frame (31), wherein the fixing frame (31) is fixedly connected to one side of the outer wall of the walking track (1); A movable block (32), the top of the movable block (32) is slidably connected to the fixed frame (31), and the bottom of the movable block (32) is arranged in an inclined surface; A limit block (33), wherein the limit block (33) is arranged on the top of the movable block (32), and the position of the limit block (33) corresponds to that of the walking wheel (2).

3. The traveling structure of a portal crane according to claim 2, characterized in that: The limiting mechanism (3) further comprises: A screw rod (34), both ends of which are rotatably connected to the fixed frame (31), and the screw rod (34) is arranged below the movable block (32); An extrusion block (35), wherein the extrusion block (35) is threadedly connected to one end of the screw rod (34), and the upper surface of the extrusion block (35) is in contact with the lower surface of the movable block (32); A through groove (36) is arranged at the bottom of the movable block (32), and an inner cavity of the through groove (36) is slidably connected with one end of the screw rod (34).

4. The traveling structure of a portal crane according to claim 3, characterized in that: The regulating mechanism (4) comprises: A fixed block (41), wherein the lower surface of the fixed block (41) is fixedly connected to the upper surface of the movable block (32); The mounting groove (42) is arranged on the limiting block (33), and the inner cavity of the mounting groove (42) is connected to the fixing block (41) in a sliding and interlaced manner.

5. The traveling structure of a portal crane according to claim 4, characterized in that: The regulating mechanism (4) further comprises: A bolt (43), one end of which is threadably connected to the fixing block (41), and one end of which is rotatably connected to the inner wall of the mounting groove (42); A clamping block (44), the clamping block (44) being fixedly connected to the bottom of one side of the movable block (32), the clamping block (44) being used to limit the movable block (32).

6. The traveling structure of a portal crane according to claim 5, characterized in that: The top of the extrusion block (35) is arranged in an inclined surface, the lower surface of the limit block (33) is in contact with the upper surface of the movable block (32), the lower surface of the extrusion block (35) is in contact with the outer wall of the walking track (1), and one side of the limit block (33) is arranged in an arc shape.

Images