Trolley for bridge crane system and bridge crane system thereof

Abstract

The present disclosure relates to a trolley (8) for a bridge crane system (2), the trolley comprising a lifting mechanism (18) for lifting or lowering a lifting member (14) in use, and a plurality of arms (34A, 34C), at least one arm configured to mount the lifting mechanism (18). A beam (30) extends between the arms (34A, 34C) to, in use, connect the arms (34B, 34C) and span the portal frame (4). At least one arm (34A, 34C) comprises a plurality of mounting surfaces (58A, 62A) to allow mounting of the lifting mechanism (18) to the arm, and wherein the mounting surfaces (58A, 62A) are provided on opposite sides (64A, 64B) of the arm such that the lifting mechanism can be mounted on the opposite sides (64A, 64B) of the arm, respectively. The present disclosure also relates to a bridge crane system.

Description

Technical Field

[0001] This utility model relates to the field of bridge cranes, and in particular to a trolley used in a bridge crane system and the bridge crane system thereof. Background Technology

[0002] In a typical bridge crane configuration, a trolley is mounted to the bridge beam or gantry. The trolley includes wheels that allow it to move along the beam to provide its horizontal movement. A pulley system may be mounted to the trolley to support a hook or similar object, thereby lifting the load during use.

[0003] "Low headroom" crane systems can be used in locations with limited vertical working space. In such installations, the various components of the trolley are preferably positioned as high as possible relative to the gantry, thereby increasing the clearance between the trolley and the ground during use. Examples of such installations are provided in WO 2015 / 110705, US 5461985, and US 2005 / 0092201. Prior art systems include several disadvantages.

[0004] This invention aims to overcome or improve one or more problems in existing technical solutions. Utility Model Content

[0005] According to a first aspect, a trolley for a bridge crane system is provided, the trolley comprising: a lifting mechanism for raising or lowering a lifting member in use; a plurality of booms, at least one boom being configured to mount the lifting mechanism; a beam extending between the booms to connect the booms in use and spanning the gantry; and wherein the at least one boom includes a plurality of mounting surfaces to allow the lifting mechanism to be mounted to the boom, and wherein the mounting surfaces are disposed on opposite sides of the booms such that the lifting mechanism can be mounted accordingly on opposite sides of the booms.

[0006] The mounting surfaces on corresponding sides of the arm can be positioned at corresponding locations (i.e., aligned with each other). The mounting surfaces can be located on the inward-facing and outward-facing surfaces of the trolley. At least one of the mounting surfaces may include a flat surface. At least one of the mounting surfaces may include a recessed surface.

[0007] The arm may include a plurality of mounting surfaces on a given side. The arm includes a plurality of spaced-apart mounting surfaces on each side. The spaced-apart mounting surfaces may be located at opposite ends of the arm.

[0008] The arm may include a first channel for receiving a beam member and a second channel for receiving the beam. A first spaced-apart mounting surface of the plurality of spaced-apart mounting surfaces may be positioned adjacent to the first channel, and a second spaced-apart mounting surface of the plurality of spaced-apart mounting surfaces may be positioned adjacent to the second channel.

[0009] At least one of the mounting surfaces may include a fastener receiving feature and / or a fastener. At least one of the mounting surfaces may include one or more holes for receiving fasteners in use.

[0010] At least one of the arms may include wheels or rollers to provide movement of the trolley along the gantry or bridge during use.

[0011] A portion of the lifting mechanism may be supported by a first arm. A second portion of the lifting mechanism may be supported by a second arm (i.e., the lifting mechanism spans between the arms). A crossbeam member extends between the two arms. The lifting mechanism may span in a direction parallel to or adjacent to the crossbeam member. A drum or spindle of the lifting mechanism spans between the two arms.

[0012] The lifting mechanism can be detachably attached to the arm. The lifting mechanism may include a bracket configured to mount to one or more arms. The bracket may include a face configured to engage the mounting face on the arm. The bracket is shaped to engage both sides of the arm. The bracket may support the gearbox of the lifting mechanism.

[0013] The trolley may include multiple crossbeam members. Corresponding beams may extend between the crossbeam members. The crossbeam members and beams may be connected via corresponding arms. The arms and beams form a U-shaped profile in a direction perpendicular to the arms. The beams may be spaced apart from the crossbeam members in a vertical direction. The arms may be inclined relative to the vertical direction.

[0014] One of the crossbeam members is configured to support a rope pulley. The other of the crossbeam members can be configured to provide an attachment point for the lifting member.

[0015] The beam and / or crossbeam member may include a curved tubular profile. The crossbeam member and the beam form a U-shaped profile in a direction perpendicular to the crossbeam member. The crossbeam member and the beam may extend perpendicularly to each other. The crossbeam member may be parallel. The beam may be parallel.

[0016] According to another aspect, a bridge crane system is provided, which includes a trolley according to the first aspect.

[0017] A first crossbeam member may be mounted on a first side of the gantry of the crane system. A second crossbeam member may be mounted on a second side of the gantry. One or more beams may span the gantry. The wheels may engage the gantry. The lifting mechanism may be mounted on the side of the gantry. The bridge crane system may include a low-profile, low-headroom, or low-bridge system.

[0018] Where feasible, any aspect of this invention may be combined with any other aspect of this invention. Attached Figure Description

[0019] The embodiments of this utility model are described below by way of example only with reference to the accompanying drawings:

[0020] Figure 1 A schematic side view of the crane system is shown;

[0021] Figure 2 A perspective view of the trolley of the crane system is shown;

[0022] Figure 3 A simplified front view of the trolley is shown.

[0023] Figure 4 A simplified side view of the trolley is shown.

[0024] Figure 5 A close-up view of the trolley's arm is shown:

[0025] Figure 6 A first perspective view of the trolley's arm is shown;

[0026] Figure 7 A second perspective view of the trolley's arm is shown;

[0027] Figure 8 The image shows a top-down comparison of the trolley. Detailed Implementation

[0028] Figure 1 A schematic diagram of crane system 2 is shown. The crane system includes a bridge beam or gantry 4. Gantry 4 may include main beams, crossbeams, rails, or cantilever beams, etc. Gantry 4 is typically suspended above the ground (e.g., suspended from the ceiling or supported by outriggers). System 2 includes a hoist 6. Hoist 6 is movably mounted to gantry 4 to provide movement along gantry 4, thereby providing movement of the load connected to hoist 6.

[0029] The lifting machine 6 includes a trolley or carriage 8. Wheels or rollers 10 are mounted to the trolley 8 to engage the gantry 4 and provide the movement. An electric motor (not shown) can drive the wheels 10. The drive mechanism for the lifting machine 6 may include a gearbox, a control system, and / or other features associated with such a crane system. In other embodiments, the trolley 8 may be driven via an external drive device (e.g., via a screw drive or a recirculating ring).

[0030] In some embodiments, the gantry / cable tray is movable (e.g., to provide movement of the lifting crane 6 in a second dimension). The gantry / cable tray can be mounted to a gantry, rail, or support structure to allow its horizontal movement. The cable tray may include one or more wheels configured to engage the ground or support structure (if provided). Figure 1 In the embodiment shown, the gantry includes wheels 7 configured to travel on tracks 5 (as shown in the depth direction). Tracks 5 may be located below both ends of the gantry 4 (in...). Figure 1 In the diagram, the gantry extends to the right (only the left end is shown). A motor may be provided to influence the movement of the gantry / cable tray section. The motor may include a gearbox. The gearbox may be connected to wheels or the like to drive the gantry / cable tray.

[0031] A remote control (not shown) may be provided to provide operation of the crane 2. The remote control may allow adjustment of the position of the trolley along the gantry 4 and / or the vertical position of the load. The remote control may be wired or wireless. The remote control may include a hanger or a radio controller. It is understood that the exact form of the crane system 2 or any auxiliary aspect thereof is irrelevant to this invention.

[0032] Lifting member 14 is connected to hoist 6. Lifting member 14 may include ropes, chains, wires, or other suitable components to provide lifting of the load during use. Lifting member 14 includes a connector 16 for connection to the load during use. Connector 16 may include a hook, swivel, or other suitable connector. Connector 16 is connected to hoist 6 via a pulley arrangement formed using lifting member 14. In some embodiments, lifting member 14 comprises a polymer or synthetic material. The polymer may include ultra-high molecular weight polyethylene. In other embodiments, the rope may be made of steel.

[0033] The first portion of the lifting member 14 is mounted to the lifting mechanism 18. For example, the lifting mechanism 18 may include a winch assembly. The lifting mechanism 18 can extend / retract (i.e., release or insert) the lifting member 14 to change the height of the connector 16. A drum (e.g., a rope reel) or mandrel may be provided to store the lifting member 14.

[0034] like Figure 2As seen, the second portion of the lifting member 14 is held via a pulley device 20 (i.e., a pulley or roller). The pulley device 20 is connected to the crossbeam member 22. The crossbeam member 22 extends across the width of the trolley 8. The crossbeam member 22 may form part of the frame or structure of the trolley 8. The lifting member 14 extends over the pulley device 20 to form a loop. Thus, the lifting member 14 extends rearward around the connector 16 and is secured to the trolley 8 at its end. The lifting member 14 is secured via the connector 24.

[0035] Connector 24 is disposed on second crossbeam member 26. Crossbeam members 22 and 26 are tubular in form. Crossbeam members 22 and 26 are arranged in parallel. Crossbeam members 22 and 26 are mounted to frame 28. Frame 28 includes beams 30 and 32. Beams 30 and 32 are tubular in form. Beams 30 and 32 are parallel. In use, beams 30 and 32 are configured to span the gantry 4. Beams 30 and 32 and / or crossbeam members 22 and 26 include circular or curved tubular forms. Beams 30 and 32 and / or crossbeam members 22 and 26 can form a tubular frame.

[0036] Frame 28 includes arms 34A to 34D. Arms 34A to 34D are configured to connect crossbeam members 22, 26 and beams 30, 32. Frame 28 includes a U-shaped profile (see [link]). Figure 3 Arms 34A to 34D receive corresponding crossbeam members 22, 26 at their first ends 38. Fasteners 40 are configured to secure the crossbeam members 22, 26 to arms 34A to 34D. In this embodiment, arms 34A to 34D are mounted to the ends of the crossbeam members 22, 26. In other embodiments, arms 34A to 34D can be displaced away from the ends of the crossbeam members 22, 26. Therefore, the tubular form of the crossbeam members 22, 26 allows for adjustment of the spacing of beams 30, 32 (i.e., the length of the trolley 8). This also allows the hoist 6 to be mounted to gantry frames of different sizes. Wheels 10 can travel along flanges or the like on the gantry frame.

[0037] Arms 34A to 34D support corresponding wheels 10. Two arms 34A and 34B are configured to support a lifting mechanism 18. The lifting mechanism 18 can be mounted to arms 34A and 34B via brackets 42A and 42B. Brackets 42A and 42B can be located at the respective ends of the drum / spindle or its housing 44. One of the brackets 42A supports a motor 46 (of the lifting mechanism 18). The motor influences the movement of the lifting mechanism in the vertical direction (i.e., rotates the drum). The motor is operably connected to the spindle via a gearbox 48. The lifting mechanism 18 may include a brake or the like to slow and / or stop its movement.

[0038] The second end 50 of arms 34A to 34D is configured to receive beams 30 and 32. Arms 34A to 34D include corresponding holes for receiving beams 30 and 32. In this embodiment, arms 34A to 34D are disposed along a portion of the length of beams 30 and 32. It is understood that the position of arms 34A to 34D along beams 30 and 32 can be adjusted to adjust the width of the trolley 8. Suitable fasteners can be provided to secure arms 34A to 34D in place.

[0039] Now refer to Figure 4 The second ends 50 of the arms 34A to 34D are inclined outwards. Therefore, the spacing of the first ends 38 of the arms 34A to 34D is smaller than the spacing of the second ends 50 of the arms 34A to 34D. Thus, the arms 34A to 34D (e.g., in a direction parallel to the length of the gantry or trolley 8) are divergent. This arrangement allows the wheels 10 to be close to each other, providing sufficient spacing for the beams 30, 32 (e.g., to accommodate the lifting member 14, etc.). The inclined arrangement also effectively raises the beams 30, 32, thereby helping to lower the profile of the trolley 8, making it more compact. The inclined arrangement increases the spacing between the beams 30, 32, thus allowing more space for the lifting member 14. As another benefit, the hoist 6 can move laterally, closer to the walls or sides of the building, allowing the hoist to provide effective lifting capacity over a larger ground area. The inclined arrangement also reduces the spacing of the wheels 10.

[0040] Reference Figure 5 Arms 34A to 34D form an angle θ relative to reference 52. This reference can be defined as a direction perpendicular to the crossbeam members 22 and 26. In use, angle θ is typically also an angle relative to a vertical direction. Angle θ can be between 1 degree and 30 degrees; preferably, between 2 degrees and 10 degrees; most preferably, 5 degrees.

[0041] In this embodiment, each of arms 34A to 34D is inclined. Beams 30 and 32 extend outward on both sides. Arms 34B and 34D are inclined in a first direction, while arms 34A and 34C are inclined in the opposite direction. This provides a symmetrical arrangement. One pair of arms 34A and 34C is parallel to each other but not parallel to the other pair of arms 34B and 34D. The other pair of arms 34B and 34D is parallel to each other. In other embodiments, one pair of 34A and 34C / 34B and 34D may be inclined, while the other pair of 34B and 34D / 34A and 34C is not inclined (i.e., perpendicular to the beam members 22 and 26).

[0042] Figure 6 and Figure 7The arm 34A is shown in more detail. The leg 34A includes a channel 54 for receiving the crossbeam member 26. The channel 54 may include a sleeve (e.g., a ring or annular shape). A second channel 56 is configured to receive the beam 30. The second channel 56 may include a plurality of spaced-apart rings.

[0043] like Figure 6 As shown, arm 34A includes a first mounting surface 58A. A bracket 42A of the lifting mechanism 18 is configured to abut against the first mounting surface 58A. The first mounting surface 58A includes a generally flat surface. The first mounting surface 58A has a groove. This helps guide the bracket 42A into the correct position. A hole 60 is configured to allow fasteners to be connected to the hole during use. The bracket 42A can be releasably attached to arm 34A. A second mounting surface 58B is configured in a similar manner. The first mounting surface 58A is configured adjacent to a first channel 54, while the second mounting surface 58B is configured adjacent to a second channel 56. The first mounting surface 58A faces a first end 38 of the arm, while the second mounting surface 58B faces a second end 50. Thus, mounting surfaces 58A and 58B are spaced apart over most of the length of arm 34A. This ensures that the bracket 42A is attached to arm 34A around the two spaced points, ensuring a secure connection and helping to prevent rotation.

[0044] Reference Figure 7 Arm 34A includes a third mounting surface 62A. The third mounting surface 62A is positioned corresponding to the first mounting surface 58A. Correspondingly, a fourth mounting surface 62B is positioned corresponding to the second mounting surface 58B. The first mounting surface 58A has a similar shape to the third mounting surface 62A. The third mounting surface 58B has a similar shape to the fourth mounting surface 62B. Therefore, a bracket can be mounted to opposite sides 64A, 64B of the arm as needed.

[0045] like Figure 8 As shown, this arrangement allows for the installation of lifting mechanisms 18 of different sizes, particularly drums or drum housings 44 of different sizes. Figure 8 In the top view, bracket 42A is attached to the inner side 64B of arm 34A (i.e., bracket 42A is mounted to the inner surface of trolley 8). Figure 8 In the bottom view, bracket 42A is attached to the outer side 64A of arm 34A (i.e., bracket 42A is mounted outside the trolley 8). Therefore, this system is more flexible because lifting mechanisms of different sizes can be mounted on the system without modification. Thus, a single trolley system can be used for multiple different systems, reducing manufacturing complexity and cost. This system provides a dual mounting point arrangement for the lifting mechanism.

[0046] In this embodiment, a single arm 34A includes mounting structures on its two sides 64A, 64B. Arm 34A can be positioned adjacent to gearbox 48. In other embodiments, a second arm 34B is configured to support a second bracket 42B in a similar manner. The second arm 34B may accordingly include mounting structures on its two sides. This allows for at least three size configurations.

[0047] An electrical housing 66 is mounted to the trolley. Housing 66 may house one or more electrical systems, control systems, and / or power supplies. In some embodiments, the electrical housing 66 may be mounted in a manner similar to that of the lifting mechanism 18. Therefore, arms 34C and 34D may include mounting structures on their sides.

[0048] This arrangement can be installed in "low profile" or "low headroom" crane systems. Such systems can be installed in locations with limited vertical space. The sheath arrangement 20 and attachment arrangement 44 are positioned on the crossbeam members 22, 46, allowing the sheath 26 and attachment arrangement 44 to be level with or above the gantry 4 during use. This increases the vertical clearance for the lifting system 6. Beams 30, 32 serve as the connection side of the low headroom lifting system in such a way that the connection structure is located below the support beam or main beam. Wheels 10 can then be mounted to travel along the flanges of the support beam or main beam. Beams 30, 32 are positioned below the crossbeam members 22, 26 to allow the crossbeam members 22 and 26 to be raised relative to prior art systems. The inclined boom arrangement further enhances this. The lifting mechanism 18 and / or other components are positioned on the side of the trolley 8, which also increases the vertical clearance. The lifting mechanism 18 is mounted to the booms 34A to 34D to facilitate side attachment.

Claims

1. A trolley for a bridge crane system, the trolley comprising: Lifting mechanism (18), which is used to raise or lower the lifting component (14) during use; Multiple arms (34A, 34C), at least one arm is configured to mount the lifting mechanism (18). Beam (30), which extends between the arms (34A, 34C) to connect the arms (34A, 34C) in use and span the gantry (4); and Its features are, The at least one arm (34A, 34C) includes a plurality of mounting surfaces (58A, 62A) to allow the lifting mechanism (18) to be mounted to the arm, and wherein the mounting surfaces (58A, 62A) are disposed on opposite sides (64A, 64B) of the arm such that the lifting mechanism can be mounted accordingly on opposite sides (64A, 64B) of the arm.

2. The trolley according to claim 1, wherein, The mounting surfaces (58A, 62A) on the corresponding sides (64A, 64B) of the arm are provided in corresponding positions.

3. The trolley according to claim 2, wherein, The mounting surfaces (58A, 62A) are provided on the inward-facing surface and the outward-facing surface of the trolley.

4. The trolley according to claim 1, wherein, The arm includes a plurality of spaced-apart mounting surfaces (58A, 58B, 62A, 62B) on each side (64A, 64B).

5. The trolley according to claim 4, wherein, The arm includes a first channel (54) for receiving beam members (22, 26) and a second channel for receiving the beam (30).

6. The trolley according to claim 5, wherein, The first spaced-apart mounting surface (58A, 62A) of the plurality of spaced-apart mounting surfaces is configured to be adjacent to the first channel, and the second spaced-apart mounting surface (58B, 62B) of the plurality of spaced-apart mounting surfaces is configured to be adjacent to the second channel.

7. The trolley according to claim 1, wherein, At least one of the mounting surfaces (58A, 62A) includes one or more holes (60) for receiving fasteners in use.

8. The trolley according to claim 1, wherein, At least one of the arms includes a wheel or roller (10) for providing movement of the trolley (8) along the gantry (4) during use.

9. The trolley according to claim 1, wherein, The trolley includes a beam member (26) extending between two arms (34A, 34B), wherein a portion of the lifting mechanism (18) is supported by the first arm (34A) of the arms, and a second portion of the lifting mechanism is supported by the second arm (34B).

10. The trolley according to claim 1, wherein, The lifting mechanism (18) is detachably attached to the arm.

11. The trolley according to claim 10, wherein, The drum or spindle (44) of the lifting mechanism (18) spans between the two arms (34A, 34B).

12. The trolley according to claim 1, wherein, The trolley includes multiple crossbeam members (22, 26), with corresponding beams (30, 32) extending between the crossbeam members (22, 26) and connected via corresponding arms (34A to 34D).

13. The trolley according to claim 12, wherein, One (22) of the beam members is configured to support the rope pulley (20), while the other (26) of the beam members is configured to provide an attachment point (24) for the lifting member (14).

14. The trolley according to claim 1, wherein, The arms (34A, 34C) and the beam (30) form a U-shaped profile in a direction perpendicular to the arms (34A, 34C).

15. A bridge crane system, characterized in that, The bridge crane system includes the trolley (8) according to claim 1.

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