A bridge crane

Abstract

The utility model relates to a kind of bridge cranes, including lifting mechanism, trolley assembly, car assembly, bridge and track, the lifting mechanism is set on trolley assembly, the lifting mechanism includes driving mechanism, reel, lifting hook, steel wire rope and guide, the spiral rope groove is opened in reel, the steel wire rope is laid in rope groove, one end of the steel wire rope is fixed on reel, the other end of the steel wire rope is fixedly connected with trolley assembly after passing through the pulley on lifting hook, guide rod is provided on trolley assembly, the guide is slidably arranged on guide rod, guide groove for the steel wire rope to pass through is opened in the guide, sliding bar is provided on the guide and abuts with rope groove.This application reel can drive guide to move along guide rod when rotating, so that guide groove on guide is always aligned with the position of steel wire rope away from reel, so that steel wire rope can be accurately guided into rope groove, to prevent steel wire rope from leaving rope groove.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a bridge crane. Background Technology

[0002] When a crane is in operation, it needs to lift or lower heavy objects and move them horizontally. During this process, the wire rope will sway, making it easy for the wire rope to come off the groove on the drum. If the wire rope comes off the drum groove, it is prone to being squeezed against the drum and other ropes, leading to deformation or breakage. Therefore, ensuring that the crane's wire rope is accurately embedded in the groove is particularly important. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bridge crane to address the above-mentioned shortcomings.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: A bridge crane includes a lifting mechanism, a trolley assembly, a main trolley assembly, a bridge frame, and a track. The main trolley assembly is mounted on the track, the bridge frame is mounted on the main trolley assembly, and a bridge frame guide rail is laid on the bridge frame, perpendicular to the track. The trolley assembly is mounted on the bridge frame guide rail, and the lifting mechanism is mounted on the trolley assembly. The lifting mechanism includes a drive mechanism, a drum, a hook, a wire rope, and a guide. The drum is rotatably mounted on the trolley assembly, and the drive mechanism is mounted on the trolley assembly to drive the drum to rotate. The drum has a spiral rope groove, and the wire rope is laid in the rope groove. One end of the wire rope is fixed to the drum, and the other end of the wire rope is fixedly connected to the trolley assembly after passing through a pulley on the hook. The trolley assembly is provided with a guide rod, and the guide is slidably mounted on the guide rod. The guide has a guide groove for the wire rope to pass through, and a sliding rod that abuts against the rope groove is provided on the guide.

[0005] Furthermore, a wear-resistant sleeve is provided at the end of the slide bar that contacts the rope groove.

[0006] Furthermore, the guide is provided with an elastic component, which provides a spring force to move the slide bar toward the rope groove.

[0007] Furthermore, the trolley assembly includes a first traveling mechanism mounted on a bridge frame, on which two parallel crossbeams are mounted, and a fixed frame is mounted between the two crossbeams. The drive mechanism, drum, and guide rod are all mounted on the fixed frame.

[0008] Furthermore, the number of guide rods is at least two, and the guide rods are located below the drum.

[0009] Furthermore, the guide includes a slider and an arc-shaped portion, the slider being slidably disposed on the guide rod, the arc-shaped portion being disposed on the slider, and the guide groove being formed on the arc-shaped portion.

[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This application provides a guide rod on the trolley assembly, and a guide is slidably mounted on the guide rod. The guide abuts against the rope groove on the drum via a slide bar, so that when the drum rotates, it can drive the guide to move along the guide rod, so that the guide groove on the guide is always aligned with the position where the wire rope leaves the drum, so that the wire rope can be accurately guided into the rope groove and prevent the wire rope from falling out of the rope groove.

[0011] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the bridge crane in the embodiments of this application; Figure 2 This is a three-dimensional structural schematic diagram of the bridge crane from another perspective in an embodiment of this application; Figure 3 This is a cross-sectional structural diagram of the reel and guide in an embodiment of this application; Figure 4 This is a three-dimensional structural diagram of the guide in an embodiment of this application; Figure 5 This is a three-dimensional structural diagram of the guide from another perspective in an embodiment of this application; Figure 6 for Figure 2 A schematic diagram of a local structure.

[0013] The attached diagram lists the components represented by each number as follows: 1. Lifting mechanism; 11. Drive mechanism; 12. Drum; 121. Rope groove; 13. Hook; 14. Wire rope; 15. Guide; 151. Guide groove; 152. Slide rod; 153. Wear-resistant sleeve; 154. Elastic component; 155. Slider; 156. Arc-shaped part; 2. Trolley assembly; 21. First traveling mechanism; 22. Crossbeam; 23. Fixing frame; 24. Guide rod; 3. Trolley assembly; 4. Bridge; 41. Bridge guide rail; 5. Track. Detailed Implementation

[0014] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0015] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise" and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, this embodiment designs a bridge crane, including a lifting mechanism 1, a trolley assembly 2, a main trolley assembly 3, a bridge frame 4, and a rail 5. The main trolley assembly 3 is mounted on the rail 5, the bridge frame 4 is mounted on the main trolley assembly 3, and a bridge frame guide rail 41 is laid on the bridge frame 4. The bridge frame guide rail 41 is perpendicular to the rail 5. The trolley assembly 2 is mounted on the bridge frame guide rail 41, and the lifting mechanism 1 is mounted on the trolley assembly 2. The lifting mechanism 1 includes a drive mechanism 11, a drum 12, a hook 13, a wire rope 14, and a guide 15. The drum 12 is rotatably mounted on the trolley assembly 2. The drive mechanism 1... 1. The drive mechanism 11 is installed on the trolley assembly 2. The drive mechanism 11 is used to drive the drum 12 to rotate. The drum 12 has a spiral rope groove 121. The wire rope 14 is laid in the rope groove 121. One end of the wire rope 14 is fixed to the drum 12. The other end of the wire rope 14 is fixedly connected to the trolley assembly 2 after passing through the pulley on the hook 13. The trolley assembly 2 is provided with a guide rod 24. The guide 15 is slidably installed on the guide rod 24. The guide 15 has a guide groove 151 for the wire rope 14 to pass through. The guide 15 is provided with a sliding rod 152 that abuts against the rope groove 121.

[0017] like Figure 3 , Figure 4 and Figure 5 As shown, preferably, a wear-resistant sleeve 153 is fitted onto the end of the slide rod 152 that contacts the rope groove 121. The slide rod 152 contacts the inner wall of the rope groove 121 through the wear-resistant sleeve 153, thereby replacing the friction between the slide rod 152 and the inner wall of the rope groove 121. The wear-resistant sleeve 152 can be made of PU and is fixed to the end of the slide rod 152 by threaded assembly.

[0018] During use, the wear-resistant sleeve 153 will gradually wear down. To ensure that the slide rod 152 always abuts against the rope groove 121, an elastic component 154 is provided on the guide 15. The elastic component 154 is used to provide the elastic force that moves the slide rod 152 towards the rope groove 121. Specifically, the elastic component 154 is a spring. A sleeve is embedded in the guide 15, and the slide rod 152 is slidably disposed in the sleeve. One end of the slide rod 152 passes through the sleeve and abuts against the rope groove 121. A limit ring is provided on the slide rod 152. The limit ring is located inside the sleeve, and the spring is disposed inside the sleeve, with both ends of the spring abutting against the limit ring and the inner wall of the sleeve, respectively.

[0019] Specifically, there are two tracks 5, which are laid on the elevated structure. The trolley assembly 3 includes two second traveling mechanisms, which are respectively set on the two tracks 5. The two ends of the bridge frame 4 are fixedly connected to the two second traveling mechanisms, and two parallel bridge frame guide rails 41 are laid on the bridge frame 4. The trolley assembly 2 includes a first traveling mechanism 21, a crossbeam 22, and a fixed frame 23. There are two first traveling mechanisms 21, which are respectively mounted on two bridge guide rails 41. Two parallel crossbeams 22 are mounted on the first traveling mechanism 21, and a fixed frame 23 is mounted between the two crossbeams 22. The drive mechanism 11, the drum 12, and the guide rod 24 are all mounted on the fixed frame 23.

[0020] The drive mechanism 11 includes a motor and a reducer. Both the motor and the reducer are mounted on the fixed frame 23. The output end of the motor is connected to the input end of the reducer via a coupling. The output end of the reducer is fixedly connected to the drum 12. The motor is used to drive the drum 12 to rotate through the reducer.

[0021] Specifically, there are two guide rods 24, which are horizontally set on the fixed frame 23 and are parallel to the rotating shaft of the drum 12. The two guide rods 24 are located below the drum 12. The guide 15 includes a slider 155 and an arc-shaped portion 156. The slider 155 is slidably disposed on two guide rods 24. The arc-shaped portion 156 is disposed on the slider 155 and is integrally formed with the slider 155. The arc-shaped portion 156 extends toward the drum 12, and the guide groove 151 is formed on the arc-shaped portion 156.

[0022] It should be noted that the guide groove 151 in the figure is for illustration only, and the size and shape of the guide groove 151 can be adjusted according to actual needs. Furthermore, a sleeve or linear bearing can be installed on the slider 155 as needed to cooperate with the guide rod 24, facilitating the movement of the slider 155 along the guide rod 24.

[0023] During operation, the drive mechanism 11 drives the drum 12 to rotate to wind up or unwind the wire rope 14. During the rotation of the drum 12, the slide bar 152 moves along the rope groove 121 and drives the guide 15 to move along the guide rod 24 so that the guide groove 151 is always aligned with the separation point of the wire rope 14 from the rope groove 121, preventing the wire rope 14 from falling out of the rope groove 121.

[0024] It should be noted that the lifting mechanism 1 designed in this embodiment is only applicable to the case where a single layer of wire rope 14 is wound on the drum 12. In actual use, the specifications (diameter and length) of the drum 12 can be designed according to the length of the wire rope 14.

[0025] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A bridge crane, characterized in that, The system includes a lifting mechanism (1), a trolley assembly (2), a trolley assembly (3), a bridge frame (4), and a track (5). The trolley assembly (3) is mounted on the track (5), the bridge frame (4) is mounted on the trolley assembly (3), and a bridge frame guide rail (41) is laid on the bridge frame (4). The bridge frame guide rail (41) is perpendicular to the track (5). The trolley assembly (2) is mounted on the bridge frame guide rail (41), and the lifting mechanism (1) is mounted on the trolley assembly (2). The lifting mechanism (1) includes a drive mechanism (11), a drum (12), a hook (13), a wire rope (14), and a guide (15). The drum (12) is rotatably mounted on the trolley assembly (2), and the drive mechanism (11) is mounted on the trolley assembly (2). Placed on the trolley assembly (2), the drive mechanism (11) is used to drive the drum (12) to rotate. The drum (12) has a spiral rope groove (121). The wire rope (14) is laid in the rope groove (121). One end of the wire rope (14) is fixed to the drum (12). The other end of the wire rope (14) is fixedly connected to the trolley assembly (2) after passing through the pulley on the hook (13). The trolley assembly (2) is provided with a guide rod (24). The guide (15) is slidably disposed on the guide rod (24). The guide (15) has a guide groove (151) for the wire rope (14) to pass through. The guide (15) has a sliding rod (152) that abuts against the rope groove (121).

2. The bridge crane according to claim 1, characterized in that, A wear-resistant sleeve (153) is provided at the end of the slide bar (152) that contacts the rope groove (121).

3. The bridge crane according to claim 2, characterized in that, The guide (15) is provided with an elastic component (154) for providing elastic force to move the slide bar (152) toward the rope groove (121).

4. The bridge crane according to claim 1, characterized in that, The trolley assembly (2) includes a first traveling mechanism (21) mounted on a bridge (4). The first traveling mechanism (21) has two parallel crossbeams (22) mounted on it. A fixed frame (23) is mounted between the two crossbeams (22). The drive mechanism (11), the drum (12), and the guide rod (24) are all mounted on the fixed frame (23).

5. The bridge crane according to claim 4, characterized in that, The number of guide rods (24) is at least two, and the guide rods (24) are located below the drum (12).

6. The bridge crane according to claim 1, characterized in that, The guide (15) includes a slider (155) and an arc-shaped part (156). The slider (155) is slidably disposed on the guide rod (24), the arc-shaped part (156) is disposed on the slider (155), and the guide groove (151) is opened on the arc-shaped part (156).

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