A European style single girder gantry crane

Abstract

The utility model relates to a European-style single-girder gantry crane, comprising a gantry crane body, the gantry crane body comprising two ground beams, both of which are equipped with a trolley walking mechanism capable of turning, and both ends of each ground beam are also equipped with two fixed boxes and two movable rods capable of approaching or moving away from each other, the two fixed boxes located at the same end of the ground beam are symmetrically distributed on both sides of the ground beam, and each fixed box is slidably connected with the movable rod, the movable rod is vertically arranged, and the fixed boxes located outside the movable rod are threadedly connected with a horizontally distributed first threaded rod, the first threaded rod is opposite to the movable rod, and one end of the first threaded rod away from the movable rod is respectively located outside the fixed box; the bottom of each movable rod is respectively located below the fixed box and is equipped with a guide wheel, and the axial lines of the guide wheels are vertically distributed. During the turning process, the utility model can avoid the phenomenon that the gantry crane body is found to be stuck on the arc track, so as to facilitate turning.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, in particular to a European-style single-girder gantry crane. Background Art

[0002] European single-girder gantry crane is a type of gantry crane. At present, in order to reduce the deviation of the gantry crane when it is walking on the I-shaped track, fixed guide wheels are usually installed on the ground beam of the gantry crane. When in use, the guide wheels are located on both sides of the I-shaped track and are rollingly connected to the I-shaped track. However, with the above-mentioned setting, sometimes when the gantry crane needs to turn occasionally to switch to different working places, that is, when the gantry crane is in a Figure 4 When walking and turning on the I-shaped track shown, since the position of the guide wheel is fixed, during the turning process, affected by external forces such as wind, the gantry crane sometimes gets stuck on the curved track of the I-shaped track, making it inconvenient to turn. Therefore, there are still shortcomings and deficiencies in the prior art. Utility Model Content

[0003] The purpose of the utility model is to provide a European-style single-girder gantry crane to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A European single-girder gantry crane comprises a gantry crane body, wherein the gantry crane body comprises two horizontally opposed ground beams, each ground beam being equipped with a trolley travel mechanism capable of turning, and two fixed boxes and two movable rods capable of approaching or moving away from each other being also installed at both ends of each ground beam, the two fixed boxes located at the same end of the ground beam are symmetrically distributed on both sides of the ground beam, and each fixed box is slidably connected with the movable rod, the movable rods are vertically arranged, and the fixed boxes located outside the movable rods are threadedly connected with a horizontally distributed first threaded rod, the first threaded rod is opposite to the movable rod, and one end of the first threaded rod away from the movable rod is respectively located outside the fixed boxes; the bottom of each movable rod is respectively located below the fixed box and is equipped with a guide wheel, and the axial lines of the guide wheels are all vertically distributed.

[0006] Furthermore, each fixed box is provided with a strip slide vertically penetrating the fixed box on the top and bottom surfaces, the strip slide is arranged parallel to the first threaded rod, and the two strip slides located on the same fixed box are arranged opposite to each other, the movable rod respectively penetrates the two strip slides, and the movable rod located above the strip slide is provided with a limiting ring.

[0007] Furthermore, the movable rods are all round rods, and rail clamping blocks are installed at the bottoms of the movable rods. The rail clamping blocks and guide wheels are respectively located at opposite sides of the movable rods.

[0008] Furthermore, both sides of the movable rod are provided with limiting grooves which are opposite to the position of the first threaded rod, and the two limiting grooves located on the same movable rod are respectively opposite to the positions of the rail clamping block and the guide wheel.

[0009] Furthermore, the fixing box is opened on one side away from the ground beam.

[0010] Furthermore, a vertically distributed fixing plate is installed on the outer bottom surface of each fixed box, and a second threaded rod horizontally penetrating the fixing plate is threadedly connected to the fixing plate. The second threaded rod is opposite to the movable rod, and the second threaded rod and the first threaded rod are located on the same side of the movable rod and are arranged in parallel.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are:

[0012] When the utility model is in use, when the gantry crane body moves along the straight track, the two movable rods located at the same end of the ground beam can be moved closer to each other by rotating the first threaded rod, so that the guide wheel can be adjusted to a suitable position to play a guiding role; and when the gantry crane body needs to turn occasionally to switch to different working places, the first threaded rod can be rotated in the opposite direction to make the first threaded rod away from the movable rod, so that the guide wheel can be moved within a certain range, so that in the process of turning, the gantry crane body can be prevented from being stuck on the curved track, so that turning is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure with a partial enlargement at the center;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure in another state of use;

[0016] Figure 4 It is a schematic diagram of the structure of the combination of a straight track and an arc track in the prior art.

[0017] Figure numerals: 1. first threaded rod; 2. movable rod; 3. guide wheel; 4. rail clamping block; 5. fixed box; 6. fixed plate; 7. second threaded rod; 8. limit ring; 9. ground beam; 10. main beam; 11. electric hoist; 12. leg structure; 13. first hand wheel; 14. strip slide; 15. reinforcing rib; 16. second hand wheel; 17. I-shaped track. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the implementation mode of the present invention is further described in detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 3 As shown, the utility model provides a European single-girder gantry crane, including a gantry crane body, the gantry crane body includes two horizontally oppositely arranged ground beams 9, each of which is equipped with a turning trolley travel mechanism, that is, the utility model can be used in the following manner: Figure 4 The gantry crane body is a prior art, and the gantry crane body also includes a main beam 10 and an electric hoist 11, and a leg structure 12 is installed between the two ends of the main beam 10 and the ground beam 9; two fixed boxes 5 and two movable rods 2 that can approach or move away from each other are also installed at both ends of each ground beam 9, and the two fixed boxes 5 located at the same end of the ground beam 9 are symmetrically distributed on both sides of the ground beam 9, and each fixed box 5 is slidably connected with the movable rod 2, and the movable rod 2 is vertically arranged, and the fixed box 5 located outside the movable rod 2 is threadedly connected with a horizontally distributed first threaded rod 1, the first threaded rod 1 is opposite to the movable rod 2, and the end of the first threaded rod 1 away from the movable rod 2 is respectively located outside the fixed box 5 and is installed with a first hand wheel 13, and the first hand wheel 13 can facilitate the rotation of the first threaded rod 1; the bottom of each movable rod 2 is respectively located below the fixed box 5 and is installed with a guide wheel 3, and the guide wheel 3 is installed on the movable rod 2 through a wheel frame; the axial lines of the guide wheels 3 are vertically distributed.

[0020] Specifically, during use, when the gantry crane body moves along the straight track, by rotating the first threaded rod 1, the two movable rods 2 located at the same end of the ground beam 9 can be brought closer to each other, so as to adjust the guide wheel 3 to a suitable position for guiding; and when the gantry crane body needs to turn occasionally and switch to different working places, by rotating the first threaded rod 1 in the opposite direction, the first threaded rod 1 can be moved away from the movable rod 2, so that the guide wheel 3 can move within a certain range, so that during the turning process, the gantry crane body can avoid being stuck on the curved track, so as to facilitate turning, and then when the gantry crane body completes the turn and continues to move along the straight track, the guide wheel 3 can be readjusted to a suitable position for guiding.

[0021] The specific setting method of the sliding connection between the movable rod 2 and the fixed box 5 is as follows: Figures 1 to 3As shown, a strip slide 14 vertically penetrating the fixed box 5 is provided on the top and bottom surfaces of each fixed box 5, the strip slide 14 is arranged parallel to the first threaded rod 1, and the two strip slides 14 located on the same fixed box 5 are arranged opposite to each other, the movable rod 2 respectively penetrates the two strip slides 14, and the movable rod 2 located above the strip slide 14 is provided with a limit ring 8. Specifically, the outer diameter of the limit ring 8 is larger than the width of the strip slide 14, which can prevent the movable rod 2 from falling. By providing two strip slides 14 on each fixed box 5, the stability of the movable rod 2 during movement can be improved.

[0022] Further, such as Figures 1 to 3 As shown, the movable rods 2 are all round rods, and the bottom of the movable rods 2 are installed with track clamping blocks 4, the track clamping blocks 4 and the guide wheels 3 are respectively located on the opposite sides of the movable rods 2, and the side of the track clamping blocks 4 away from the movable rods 2 is adapted to the top of the straight track; specifically, when in use, when the guide wheel 3 is located on the side of the movable rod 2 away from the first threaded rod 1, the guide wheel 3 can be adjusted to a suitable position by rotating the first threaded rod 1 to play a guiding role; and after the first threaded rod 1 is moved away from the movable rod 2, the movable rod 2 can be rotated until the track clamping block 4 is located on the side of the movable rod 2 away from the first threaded rod 1, and the two movable rods 2 located at the same end of the ground beam 9 can be moved closer to each other by rotating the first threaded rod 1, and then the track clamping block 4 can be pressed against the top of the straight track to clamp the I-shaped track 17 to prevent the gantry crane body from slipping.

[0023] Furthermore, both sides of the movable rod 2 are provided with limiting grooves which are opposite to the position of the first threaded rod 1, and the two limiting grooves located on the same movable rod 2 are respectively opposite to the rail clamping block 4 and the guide wheel 3. Specifically, when in use, after the movable rod 2 is rotated into place, the end of the first threaded rod 1 close to the movable rod 2 can be inserted into the limiting groove by rotating the first threaded rod 1, so that when the position of the movable rod 2 is adjusted into place later, the movable rod 2 can be prevented from rotating.

[0024] Furthermore, the fixed box 5 has an opening on one side away from the ground beam 9, so that the specific situation of the movable rod 2 in the fixed box 5 can be easily observed, so as to facilitate inserting the end of the first threaded rod 1 close to the movable rod 2 into the limiting groove.

[0025] Further, such as Figures 1 to 3As shown, a vertically distributed fixing plate 6 is installed on the outer bottom surface of each fixing box 5, and a reinforcing rib 15 is installed between the inner side of the fixing plate 6 and the fixing box 5, and the reinforcing rib 15 can improve the connection strength between the fixing plate 6 and the fixing box 5; a second threaded rod 7 that horizontally penetrates the fixing plate 6 is threadedly connected to the fixing plate 6, and the position of the second threaded rod 7 is opposite to the movable rod 2, and the second threaded rod 7 and the first threaded rod 1 are located on the same side of the movable rod 2 and are arranged in parallel. Specifically, a second hand wheel 16 is installed at the end of the second threaded rod 7 away from the movable rod 2, and the second hand wheel 16 can facilitate the rotation of the second threaded rod 7; and by setting the second threaded rod 7, it can cooperate with the first threaded rod 1 to doubly limit the position of the movable rod 2, which is more convenient to use.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A European-style single-girder gantry crane, comprising a gantry crane body, wherein the gantry crane body comprises two horizontally oppositely arranged ground beams, each of which is equipped with a turning trolley travel mechanism, characterized in that: Two fixed boxes and two movable rods that can approach or move away from each other are also installed at both ends of each ground beam. The two fixed boxes located at the same end of the ground beam are symmetrically distributed on both sides of the ground beam, and each fixed box is slidably connected with the movable rod. The movable rods are all vertically arranged, and the fixed boxes located on the outside of the movable rods are threadedly connected with horizontally distributed first threaded rods, the first threaded rods are opposite to the movable rods, and the ends of the first threaded rods away from the movable rods are respectively located outside the fixed boxes; the bottom of each movable rod is respectively located below the fixed box and is installed with guide wheels, and the axial lines of the guide wheels are all vertically distributed.

2. A European style single girder gantry crane according to claim 1, characterized in that: The top and bottom surfaces of each fixed box are provided with a strip slide that vertically penetrates the fixed box. The strip slide is arranged parallel to the first threaded rod, and the two strip slides located on the same fixed box are arranged opposite to each other. The movable rods respectively penetrate the two strip slides, and the movable rods located above the strip slides are each provided with a limiting ring.

3. A European style single girder gantry crane according to claim 2, characterized in that: The movable rods are all round rods, and rail clamping blocks are installed at the bottoms of the movable rods. The rail clamping blocks and the guide wheels are respectively located at opposite sides of the movable rods.

4. A European style single girder gantry crane according to claim 3, characterized in that: Both sides of the movable rod are provided with limiting grooves which are opposite to the position of the first threaded rod, and the two limiting grooves on the same movable rod are respectively opposite to the rail clamping block and the guide wheel.

5. A European style single girder gantry crane according to claim 4, characterized in that: The fixing box is opened on one side away from the ground beam.

6. A European style single girder gantry crane according to any one of claims 1 to 5, characterized in that: A vertically distributed fixing plate is installed on the outer bottom surface of each fixing box, and a second threaded rod horizontally penetrating the fixing plate is threadedly connected to the fixing plate. The second threaded rod is opposite to the movable rod, and the second threaded rod and the first threaded rod are located on the same side of the movable rod and are arranged in parallel.

Images