Mounting device for mounting lifting member of crane system, crane trolley and crane thereof

Abstract

The utility model relates to a mounting device (20) for mounting a lifting component (14) of a crane system (2), which comprises a shell (24), the shell comprises a rope wheel (28) to restrain the lifting component (14a), and the shell (24) comprises a channel (34) to receive a part of a crane trolley (8) in use. The securing member (38) is configured to be attached in use to the trolley (8), and wherein the housing (24) comprises a recess (40) therein to receive the securing member (38) to constrain a position of the housing (24) on the trolley (8). The utility model further relates to the crane trolley and the crane thereof.

Description

Technical Field

[0001] This utility model relates to the field of crane lifting, and in particular to an installation device for lifting components of a crane system, a crane trolley, and the crane 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 on 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 WO2015 / 110705, US5461985, and US2005 / 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 of the present invention, an installation device for mounting a lifting member of a crane system is provided, comprising: a housing including a pulley for restraining the lifting member, the housing including a channel for receiving a portion of a crane trolley in use; and a fixing member configured to attach to the trolley in use, wherein the housing includes a recess for receiving the fixing member to restrain the position of the housing on the trolley.

[0006] The mounting device may include a sliding member. The sliding member is configured to be positioned between the housing and the trolley during use. The sliding member can facilitate relative rotation between the housing and the trolley. The sliding member can be configured to prevent lateral movement (e.g., axial movement along the crossbeam member).

[0007] The sliding component may include a low-friction material. The sliding component may include a tube or sleeve.

[0008] The fixing member may include one or more stop members. The stop members may restrict rotation of the housing relative to the trolley. The stop members may include raised lips or lugs. The stop members may include fasteners. The stop members may be ends of the fixing member. The stop members may be located at one or both ends of the fixing member.

[0009] One or more stop members are positioned such that the housing can rotate relative to the trolley within a predetermined angular range. The dimensions of the stop members can be designed to create a gap between the stop members and the end of the recess. The housing can move into / out of the gap to provide rotation of the housing.

[0010] The housing may comprise a single, integral sheet.

[0011] The fixing member can be curved / arc-shaped. The fixing member may include an arc-shaped bracket. Recesses in the housing may include arc-shaped slots. The shape of the slots can be designed to receive the brackets accordingly. The fixing member can allow rotational movement and prevent lateral movement. The fixing member can be secured to a crossbeam member during use.

[0012] The pulley can be rotatably mounted to the housing about a first axis of rotation. The housing can be mounted to the trolley in use about a second axis of rotation. The second axis of rotation can be perpendicular to the first axis of rotation. The pulley can include a wheel or roller. The pulley can include a groove or slot. The pulley can be secured to the housing via bearings or the like. The pulley can be located at one end of the end housing and the channel, and at a second end of the housing.

[0013] The shell can have a U-shaped profile. The passage is defined by the vertices of the U-shape.

[0014] The fixed and / or sliding components may include one or more attachment structures that allow the trolley to be connected during use. The attachment structures may include fasteners and / or holes that recess the fasteners.

[0015] Lifting components may include ropes or chains.

[0016] According to another aspect, a crane trolley is provided, comprising the mounting device of the first aspect. A housing is mounted to a support, beam, or rod of the trolley. The support / beam / rod may provide a crossbeam member. The crossbeam member may be connected via a corresponding beam. The crossbeam member may be connected to a beam via a corresponding arm. The arm may support wheels or the like.

[0017] The housing can rotate relative to the support / beam / rod. The housing can be constrained to a position near the axial position on the support / beam / rod. The sliding member can be fixed relative to the support / beam / rod. The support / beam / rod can be fixed relative to the trolley (i.e., non-rotatable).

[0018] The crane trolley may include a lifting member configured to support a load in use, wherein a first portion of the lifting member is connected to a lifting mechanism, and a second portion of the lifting member is constrained by rope pulleys to form a pulley system.

[0019] The trolley may include a support frame with fixing points for securing a lifting member thereto during use. The housing may include a channel for receiving a portion of the crane trolley during use. The fixing member may be configured to attach to the trolley during use. The support frame may include a recess to receive the fixing member, thereby constraining the position of the support frame on the trolley. The support frame may be rotatably mounted to a beam member.

[0020] The bracket can be rotatably mounted onto the trolley. The bracket can be rotatably mounted onto the crossbeam member. The radial and / or axial movement of the bracket can be restricted.

[0021] According to another aspect, a crane is provided, the crane comprising a trolley according to the preceding aspect.

[0022] Bridge crane systems can include low profile, low headroom, or low bridge systems.

[0023] Where feasible, any aspect of this invention may be combined with any other aspect of this invention. Attached Figure Description

[0024] Embodiments of the present invention are described below by way of example only with reference to the accompanying drawings:

[0025] Figure 1 A schematic side view of the crane system is shown;

[0026] Figure 2 A perspective view of the trolley of the crane system is shown;

[0027] Figure 3 A simplified perspective view of the trolley is shown.

[0028] Figure 4 A perspective view of the rope pulley device is shown;

[0029] Figure 5 A three-dimensional view of the fixing component is shown;

[0030] Figure 6 A perspective view of the first crossbeam component of the trolley is shown;

[0031] Figure 7 A perspective view of the second crossbeam component of the trolley is shown;

[0032] Figure 8 A perspective view of the attachment components of the trolley is shown;

[0033] Figure 9 A perspective view of the bracket for the attachment is shown. Detailed Implementation

[0034] exist Figure 1A 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 lifting hoist 6. The lifting hoist 6 is movably mounted to the gantry 4 to provide movement along the gantry 4, thereby providing movement of the load connected to the lifting hoist 6.

[0035] The lifting machine 6 includes a trolley or carriage 8. Wheels or rollers 10 are mounted on 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 annular ring).

[0036] 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 illustrated embodiment, 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 can be installed to influence the movement of the gantry / cable tray section. This motor may include a gearbox. The gearbox may be connected to wheels or the like to drive the gantry / cable tray.

[0037] A remote controller (not shown) can be configured to provide operation of the crane 2. The remote controller can allow adjustment of the position of the trolley along the gantry 4 and / or the vertical position of the load. The remote controller can be wired or wireless. The remote controller may include a pendant 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.

[0038] Lifting member 14 is connected to hoist 6. Lifting member 14 may include rope, chain, wire, 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.

[0039] 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., extend or retract) the lifting member 14 to change the height of the connector 16. (As in...) Figure 2 As clearly seen, a drum (e.g., a rope reel) or spindle 15A may be provided to store the lifting member 14. A motor 15B may be provided to influence movement in the vertical direction (i.e., to rotate the drum). The motor may include a gearbox 15C. The lifting mechanism 18 may include a brake or the like to slow and / or stop its movement.

[0040] The second part of the lifting member 14 is held by a rope pulley device 20 (i.e., a pulley or roller). The rope 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.

[0041] In use, the lifting member 14 passes over the sheave assembly 20 to form a loop. Therefore, the lifting member 14 extends rearward around the connector 16 and is secured to the trolley 8 at its end.

[0042] exist Figures 3 to 6 The pulley assembly 20 is shown in more detail below. The pulley assembly 20 is mounted to the crossbeam member 22. In this embodiment, the crossbeam member 22 is positioned in a fixed position (i.e., it does not rotate). The pulley assembly 20 includes a housing 24. The housing 24 is configured to at least partially contain a pulley 26. The pulley 26 is configured to be rotatably mounted to the housing 24, for example, using a bearing or the like. The pulley includes a grooved wheel or roller, etc. A first end 28 of the housing 24 is rounded / curved to conform to the shape of the pulley 26. A hole 30 is provided to provide space for a bearing / shaft of the pulley 26.

[0043] The second end 32 of the housing 24 is configured to receive the crossbeam member 22. Therefore, the housing 24 can provide a bracket or mounting for the pulley 26. The housing 24 includes a channel 34 for receiving the crossbeam member 22. The channel 34 extends laterally through the housing 24. The channel 24 is perpendicular to the axis of rotation of the pulley 26. The second end 32 includes a rounded end configured to correspond to the shape of the crossbeam member 22. Therefore, the housing 24 fits snugly with the crossbeam member 22.

[0044] A sliding member 36 is received between the housing 24 and the beam member 22. The sliding member 36 allows relative rotation between the housing 24 and the sliding member 36. The sliding member 36 is fixed to the beam member 22 to prevent relative rotation between them. This ensures that the pulley 26 is correctly oriented when the lifting member 14 extends / retracts. The sliding member 36 may comprise a low-friction material. The sliding member 36 has a lower coefficient of friction than the beam member 22 (e.g., lower than steel or stainless steel). The sliding member 36 may be made of a polymer. For example, the sliding member 36 may comprise one or more of the following: PTFE; PEEK; PPS; nylon; acetal; and / or polyester. The sliding member 36 includes a tube, cylinder, or sleeve configured to surround the beam member 22. The sliding member 36 has a tight fit with the beam member 22.

[0045] As in Figure 4 As clearly seen, housing 24 comprises a sheet. This sheet is bent or otherwise shaped. The sheet comprises a single piece, thereby allowing for easier manufacturing and increasing the aesthetic appeal of the shape. The profile of housing 24 is generally U-shaped (i.e., parallel to the axis of channel 34). Channel 34 is defined by the vertices of the U-shape. In other embodiments, housing 24 may be manufactured using casting.

[0046] As in Figure 3 and Figure 5 As clearly seen, the retaining member 38 is configured to hold the housing 24 in place on the beam member 22. The retaining member 38 includes a circular / arc-shaped bracket. The retaining member 38 is received within a recess 40 in the housing 24. The recess 40 may define an elongated slot. The retaining member 38 and the slot 40 can fit tightly together. This laterally constrains the housing 24 relative to the beam member 22 in two axial directions. The slot 40 is provided in the second end 32 of the housing. Therefore, the retaining member 38 can be secured to the sliding member 36 and / or the beam member. Suitable fastening devices may be provided on the retaining member 38 and / or the sliding member 36 / beam member 22. For example, the retaining member 38, the sliding member 36, and the beam member 22 include holes for receiving fasteners. Typically, the fasteners are removable to allow for maintenance or replacement, etc. In other embodiments, the retaining member 38 may be permanently secured to the beam member 22.

[0047] The angular length of the slot 40 is longer than the angular length of the fixing member 38. This allows the rotation angle of the housing 24 to be limited by the difference in angular lengths. The housing 24 can rotate between 5 degrees and 45 degrees. A stop member 42 is disposed on the fixing member 38 to abut against the housing 24, thereby limiting movement between them. The stop member 42 may be disposed at both ends of the fixing member 38. In some embodiments, one or both of the stop members 42 may be displaced away from the ends of the fixing member 38 to allow a greater degree of rotation of the housing 24. Figure 5 In one embodiment, the stop member 42 includes a raised lip or flange. In other embodiments, the stop member 42 may include an end of the fixing member 38 and / or a fastener disposed thereon.

[0048] The stop member 42 can also be used to limit the movement of the housing 24 along the axial length of the beam member 22. Therefore, the fixed bracket 38 and / or the stop member 42 can limit axial and / or rotational movement. The stop member also limits radial displacement, such that the sliding member 36 remains coaxial with the beam member 22 and the housing 24. This arrangement can be provided with a single component (i.e., the fixed member 38). The fixed bracket 38 is located in the middle of the housing 42. Therefore, a single fixed bracket 38 can constrain the housing in two axial directions.

[0049] refer to Figure 6 As can be seen, a gap 43 is provided between the fixed member 38 and the housing 24. The gap 43 allows the housing 24 to rotate into the gap (e.g., in the downward direction during use). Further rotation is prevented when the housing is adjacent to the fixed member 38. Therefore, the size of the gap 43 limits the range of movement of the housing 24.

[0050] refer to Figures 7 to 9 As previously described, the lifting member 14 is fixed to the trolley 8. The lifting member 14 is attached to the trolley 8 via an attachment device 44. This attachment device is located on the side of the trolley 8 opposite to the sheath device 20. This facilitates direct positioning of the connector 16 below the trolley 8. This attachment device is located on the second crossbeam member 46. The second crossbeam member 46 is parallel to the first crossbeam member 22. In use, the first crossbeam member 22 and the second crossbeam member 46 are positioned on either side of the gantry 4. Figure 3 As can be clearly seen, the first crossbeam member 22 and the second crossbeam member 46 are connected via corresponding beams 48A and 48B. Arms 50A to 50D are configured to connect crossbeam members 22 and 26 to beams 48A and 48B. Wheels 10 are provided on arms 50A to 50D.

[0051] The attachment device 44 includes a bracket 52 configured to receive a crossbeam member 46. The bracket 52 includes a channel 54. The second crossbeam member 46 is disposed within the channel 54 during use. The bracket 52 is typically annular or ring-shaped. An anchor point 56 is provided to allow attachment of the lifting member 14 during use. The anchor point 56 may include a sleeve or bushing. The anchor point 56 is mounted to a flange on the bracket 52. The anchor point 56 can be rotatably mounted to the bracket 52. This allows for some lateral movement of the lifting member. The shape of the bracket 52 may be designed to limit said rotation (e.g., less than 5 or 10 degrees) to prevent unwanted swaying. The bracket 52 may include a protruding sidewall 58, to which the anchor point 56 may abut.

[0052] In some embodiments, a sliding member 60 may be provided to allow the support 52 to rotate about the beam member 46. The sliding member 60 is located between the support 52 and the beam member 46. The sliding member 60 may include a low-friction material. The sliding member 36 may also include a low-friction material. The sliding member 60 has a lower coefficient of friction than the beam member 22 (e.g., lower than steel or stainless steel). The sliding member 36 may be made of a polymer. For example, the sliding member 60 may include one or more of the following: PTFE; PEEK; PPS; nylon; acetal; and / or polyester. In this embodiment, the sliding member 60 is configured to extend partially around the beam member 46. For example, the sliding member 60 may include an arcuate shape. In other embodiments, the sliding member 36 includes a tube, cylinder, or sleeve configured to surround the beam member 46.

[0053] The bracket 52 is held on the beam member 46 by a fixing member 62. The fixing member 62 is configured to be received within a recess 64 in the bracket 52. The fixing member 62 is curved / arc-shaped. Therefore, the recess 64 accordingly includes an arcuate slot. The fixing member 62 is secured to the beam member 46 by a fastener 66. The fastener may include bolts, screws, or other suitable fasteners. The fixing member 62 and the bracket 52 are tightly fitted together.

[0054] The recess 64 may include an angular length greater than the angular length of the fixing member 62. Therefore, the bracket 52 can rotate freely by an angular length defined by the difference in angular length between the recess 64 and the fixing member 62. The bracket 52 can rotate between 5 degrees and 45 degrees, preferably between 5 degrees and 10 degrees. The fastener 66 may serve as a stop member at one or both ends of the fixing member 62. In some embodiments, the fixing member 62 may include an upturned lip or flange (e.g., as provided for the sheath device 20).

[0055] The fixing member 62 can also be used to limit the movement of the support 52 along the axial length of the beam member 46. Therefore, the fixing member 62 and / or the stop member 66 can limit axial and / or rotational movement. The stop member 66 also limits radial displacement, such that the sliding member 60 remains coaxial with the beam member 46 and the support 52. This device can be provided with a single component (i.e., the fixing member 62). The fixing member 62 is located in the middle of the support 52. Therefore, a single fixing member 62 can constrain the housing in two axial directions.

[0056] In an alternative embodiment, one or both of the crossbeam members 22, 46 are rotatably mounted to the trolley 8 (e.g., arms 50A to 50D). One or both of the brackets 24, 52 can be fixed to the corresponding crossbeam member 22, 46 and rotate with it. However, it is understood that providing rotation between the brackets 24, 52 and the crossbeam members 22, 46 only requires a single point of rotation, thereby reducing complexity.

[0057] This device can be installed in "low profile" or "low headroom" crane systems. Such systems can be installed in locations with limited vertical space. The sleeve device 20 and attachment device 44 on the crossbeam members 22, 46 allow the sleeve device 20 and attachment device 44 to be raised to the horizontal plane of the gantry 4 or above the gantry 4 during use. This increases the vertical clearance of the lifting system 6. Beams 48A, 48B are positioned below the crossbeam members 22, 46 to allow for relative elevation of the crossbeam members 22, 46. The lifting mechanism 18 and / or other components are positioned on the side of the trolley 8, also increasing the vertical clearance. The lifting mechanism 18 is mounted to the booms 50A, 50B for lateral attachment.

[0058] In existing systems, the load attached to connector 16 is susceptible to swaying when suspended in the air. Furthermore, the ropes below the hoist may deviate during the lifting / lowering of connector 16. This device helps the lifting member to assume the correct position for each lifting location (e.g., by rotating and / or laterally moving about the beam member). This device allows for minute movements of the upper sheave and rope anchor points, avoiding unnecessary forces in the system and also helping to reduce unwanted swaying. This device allows for the restriction of movement of the housing or support in multiple dimensions using a single anchoring member.

Claims

1. An installation device for installing lifting components of a crane system, comprising: The housing (24) includes a pulley (26) to restrain the lifting member (14), and the housing (24) includes a channel (34) to receive a portion of the crane trolley (8) in use; as well as A fixing member (38) is configured to be attached to the trolley (8) during use. Its features are, The housing (24) includes a recess (40) to receive the fixing member (38) to constrain the position of the housing (24) on the trolley (8).

2. The installation device according to claim 1, wherein, The mounting device includes a sliding member (36). The sliding member (36) is configured to be disposed between the housing (24) and the trolley (8) during use so as to facilitate relative rotation between the housing (24) and the trolley (8).

3. The installation device according to claim 2, wherein, The sliding member (36) includes a sleeve made of low-friction material.

4. The installation device according to claim 1, wherein, The fixing member (38) includes one or more stop members (42) to restrict the rotation of the housing (24) relative to the trolley (8).

5. The installation device according to claim 4, wherein, The stop member (42) is located at one or both ends of the fixed member (38).

6. The installation device according to claim 4, wherein, The one or more stop members (42) are positioned such that the housing (24) can rotate relative to the trolley (8) within a predetermined angle range.

7. The installation device according to claim 1, wherein, The housing (24) comprises a single integral sheet.

8. The installation device according to claim 1, wherein, The fixing member (38) includes an arc-shaped bracket, and the recess (40) in the housing (24) includes an arc-shaped slot, the arc-shaped slot being shaped to receive the bracket accordingly.

9. The installation device according to claim 1, wherein, The pulley (26) is rotatably mounted to the housing (24) about a first axis of rotation, and the housing (24) is mounted to the trolley (8) about a second axis of rotation perpendicular to the first axis of rotation during use.

10. The mounting device according to claim 1, wherein, The housing (24) has a U-shaped outline, and the channel (34) is defined by the vertices of the U-shape.

11. The mounting device according to claim 1, wherein, The fixed member (38) and / or sliding member (36) include one or more attachment structures to allow the trolley to be connected in use.

12. A crane trolley, characterized in that, The crane trolley includes the mounting device (20) according to claim 1, wherein the housing (24) is mounted to the support, beam or rod (22) of the trolley.

13. The crane trolley according to claim 12, wherein, The housing (24) is rotatable relative to the support / beam / rod (22) and its axial position is constrained thereon.

14. The crane trolley according to claim 12, wherein, The crane trolley includes a lifting member (14) configured to support a load in use, wherein a first portion of the lifting member (14) is connected to a lifting mechanism (18), and a second portion of the lifting member is constrained by a pulley (26) to form a pulley system.

15. A crane, characterized in that, The crane includes the trolley as described in claim 12.

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