Lifting member fixing device, attachment device, crane trolley and crane system

Abstract

The utility model relates to a lifting member fixing device (1), which is used for installing a lifting member (14) of a crane system (102), and comprises a body (2), which comprises a top installation device (5) installed on a crane trolley (108) of the crane system; a lifting member outlet (7); a grooved arm (3) comprising at least one groove (3-1) forming a plurality of turns, said groove being adapted to receive a synthetic lifting member (14); and the grooved arm comprises a distal end (3-2) adapted to secure the synthetic lifting member at a lifting member knot (14-1) after the plurality of windings of the lifting member. The utility model also relates to an attachment device (44), a crane trolley (108) and a crane system (102).

Description

TECHNICAL FIELD

[0001] The present utility model relates to a fixing and attachment device for mounting a lifting member of a low-profile trolley crane system. More specifically, it relates to a lifting member fixing device, an attachment device, a trolley crane, and a crane system. BACKGROUND

[0002] In a typical bridge crane configuration, a trolley is mounted on an overhead beam or gantry. The trolley comprises wheels to allow the trolley to move along the beam to provide for its horizontal movement. A pulley system can be mounted to the trolley to support a hook or the like to lift a load when in use.

[0003] A low-profile trolley can be arranged to travel along the lower flange of a horizontal beam or rail, wherein the trolley comprises: a trolley frame; load bearing wheels attached to the frame of the trolley and arranged to travel on the upper surface of the lower flange of the beam or rail on both longitudinal edges thereof, and wherein at least some are drive wheels to move the trolley; a hoisting mechanism comprising a rope drum for a hoisting rope, a hoisting member cooperating with the hoisting rope to hoist a load, a hoisting motor for driving the rope drum, and a gear connecting the hoisting motor and the rope drum to each other, wherein the rope drum is supported on one side of the trolley frame, and the hoisting member is arranged to travel below the beam or rail in a vertical plane passing substantially through the middle of the beam or rail. The low-profile trolley can be a common overhead trolley type for light bridge cranes with one main support. The basic idea behind it is to save hall height by occupying as little space as possible in the vertical direction.

[0004] In a low-profile trolley, hoisting device parts can be distributed on both sides of one main support, so that the lifting hook can be lifted very close to the main support in order to make the crane assembly as low as possible. An important part of this trolley type is that it can adapt to beams of different widths, as the device is used on different types of crane main supports. Unlike this type of trolley, there is a standard structure trolley, in which the hoisting mechanism parts are fixed as a whole under the main support and fastened to the adjustable wheel plates forming the trolley, or a monorail type trolley, that is, it runs on I-profile rail, so the trolley wheel tracks cannot be adjusted.

[0005] Typically, the hoisting rope is guided from the rope drum down to a first rope pulley of a hook pulley block comprising a lifting hook, up from the hook pulley block to a sheave on the other side of the trolley, down from the sheave to a second rope pulley of the hook pulley block, and finally from there to a rope fixing device on the trolley frame. Existing examples for fixing the end of the wire rope in the crane system include a socket and a wedge device, wherein the wire rope is fixed between the socket and the wedge.

[0006] "Low headroom" crane systems can be used in locations with limited vertical working space. In such an arrangement, it is desirable for the various components of the trolley to be positioned as high as possible relative to the gantry, thereby providing an increased clearance between the trolley and the ground during use. Examples of this arrangement are provided in WO2015 / 110705, US5461985, and US2005 / 0092201. However, prior art systems have several drawbacks.

[0007] This invention aims to overcome or improve one or more problems in existing technical solutions. Utility Model Content

[0008] A novel and inventive lifting component fixing device and an attachment device for synthetic lifting ropes are provided, which enable the lifting hook to be lifted very close to the main support. Due to the new structure, the hook pulley block with the synthetic rope can be lifted to a position close to the main support.

[0009] According to a first aspect, a lifting component fixing device is provided for mounting lifting components of a crane system, comprising:

[0010] The entity, which includes:

[0011] Top mounting device installed on the crane trolley of the crane system;

[0012] Lifting component outlet;

[0013] The body further includes a grooved arm, which includes at least one groove forming multiple loops, adapted to receive a composite lifting member; and

[0014] The grooved arm includes a distal end adapted to secure the composite lifting member at a knotted portion of the lifting member after the plurality of turns of the lifting member.

[0015] According to one embodiment, the grooved arm includes a horizontal solid shaft.

[0016] According to one embodiment, the bending radius of the lifting component on the lifting component fixing device is set to be variable in order to optimize the life of the lifting component.

[0017] According to one embodiment, at least one lifting component groove includes a varying groove radius to optimize the lifespan of the lifting component.

[0018] According to one embodiment, the varying groove radius increases along the path of the lifting member from the grooved arm to the body, particularly from the path of the lifting member on the body, in the direction leading to the outlet of the lifting member.

[0019] According to one embodiment, the body includes a protrusion opposite the grooved arm that provides a counterweight configured to keep the lifting member fixing device balanced when no payload is attached to the crane via the lifting member fixing device.

[0020] According to one embodiment, the center of gravity of the lifting component fixing device is located at the lifting component outlet.

[0021] According to one embodiment, the counterweights of the grooved arms and protrusions are arranged on opposite sides of the body, thereby forming twigs in the body.

[0022] According to one embodiment, the grooved arm and protrusion form an asymmetrical branch relative to the center of gravity of the lifting member body.

[0023] According to one embodiment, the lifting component fixing device includes an asymmetrical shape formed by grooved arm branches and counterweight branches located on opposite sides of the center of gravity of the top mounting device.

[0024] According to one embodiment, the lifting component fixing device includes an asymmetrical shape formed by a first branch formed by a grooved arm and a second branch formed by a counterweight branch located on the opposite side of the center of gravity of the top mounting device.

[0025] According to one embodiment, the groove of the lifting component is adapted to have a bending radius smaller than that of the steel lifting component.

[0026] According to one embodiment, at least one lifting member groove includes 4 to 12 lifting member rotations, more preferably 6 to 10 rotations, and most preferably 8 rotations.

[0027] According to one embodiment, the lifting component fixing device is a cast steel component.

[0028] According to one embodiment, the lifting component outlet includes a downward-facing opening for the lifting component below the top mounting device, the opening being preferably flared.

[0029] According to another aspect, an attachment device is provided for mounting a lifting component fixing device according to the foregoing aspect, the attachment device including a bracket having fixing points for securing the lifting component fixing device thereto in use, the bracket including a channel for receiving a portion of a crane trolley in use.

[0030] According to one embodiment, the attachment device includes a fixing member configured to be attached to a trolley in use, and a bracket in which a recess is included for receiving the fixing member to limit the position of the bracket on the trolley.

[0031] According to one embodiment, the attachment device includes a sliding member configured to be positioned between the bracket and the trolley during use to facilitate relative rotation between the bracket and the trolley, and preferably, the sliding member includes a sleeve made of a low-friction material.

[0032] According to one embodiment, the fixing member includes one or more stop members for limiting the rotation of the housing relative to the trolley.

[0033] According to one embodiment, one or both ends of the fixing device are provided with stop members. According to one embodiment, one or more stop members are positioned such that the bracket can rotate relative to the trolley within a predetermined angle range, and / or restrict the longitudinal movement of the bracket along a portion of the crane trolley.

[0034] According to one embodiment, the fixing member includes an arcuate bracket, and the recess in the housing includes an arcuate groove formed to receive the bracket accordingly.

[0035] According to one embodiment, the fixing point is rotatably mounted on the bracket.

[0036] According to one embodiment, the fixing point is mounted on the bracket about a first rotation axis, and the bracket is mounted on the trolley about a second rotation axis perpendicular to the first rotation axis when in use.

[0037] According to one embodiment, the bracket includes one or more stop members for limiting rotation of the fixed point.

[0038] According to one embodiment, in the attachment device according to the foregoing aspects, the fixing member and / or sliding member includes one or more attachment structures for allowing the trolley to be connected during use.

[0039] According to another aspect, a crane trolley is provided, which includes an attachment device according to the former aspect, wherein a bracket is mounted to a support, beam, or rod of the trolley.

[0040] According to one embodiment, the bracket can rotate relative to the support / beam / rod and is restricted to an axial position thereon.

[0041] According to one embodiment, the crane trolley includes a lifting member configured to support a load during use, wherein a first portion of the lifting member is connected to a lifting mechanism and a second portion of the lifting member is secured by an attachment member to form a pulley system.

[0042] According to another aspect, a crane system is provided, which includes a crane trolley according to the foregoing aspects.

[0043] Where feasible, any aspect of this invention may be combined with any other aspect of this invention. Attached Figure Description

[0044] Embodiments of the present invention are described below by way of example only with reference to the accompanying drawings:

[0045] Figure 1 A schematic side view of the crane system is shown;

[0046] Figure 2 A perspective view of the trolley of the crane system is shown;

[0047] Figure 3 A simplified perspective view of the trolley is shown.

[0048] Figure 4 A perspective view of the lifting component fixing device is shown;

[0049] Figure 5 A side view of the lifting component fixing device is shown;

[0050] Figure 6 A top view of the lifting component fixing device is shown;

[0051] Figure 7 A perspective view of the rope pulley device is shown;

[0052] Figure 8 It is a three-dimensional diagram of the fixed components;

[0053] Figure 9 A perspective view of the first transverse component of the trolley is shown;

[0054] Figure 10 A perspective sectional view of the central region of the second transverse member of the trolley is shown, including the end fixing device of the lifting member; and

[0055] Figure 11 A perspective view of the bracket of the attachment device to be attached to the second transverse member is shown. Detailed Implementation

[0056] Figure 1 A schematic diagram of a crane system 102 is shown. This crane system includes an overhead beam or gantry 104. The gantry 104 may include beams, crossbeams, guide rails, a boom, etc. The gantry is typically suspended above the floor (e.g., suspended from the ceiling or supported by legs). The gantry may be mounted on wheels 107 to run on guide rails 105 (as shown in the depth direction). Guide rails 105 may be located below the ends of the gantry 104 (in... Figure 1 In the middle, the gantry extends to the right, with only the left end shown.

[0057] System 102 includes a lifting device 106. The lifting device 106 is movably mounted to the gantry 104 to provide movement along the gantry via a moving mechanism, thereby providing movement of the load connected to the lifting device.

[0058] The lifting device 106 includes a trolley or carrier 108. Wheels or rollers 10 are mounted to the trolley 108 to engage the gantry 104 and provide the movement. A motor (not shown) may drive the wheels 10. In addition to the motor, the lifting device 106 may also include a gearbox, a control system, and / or other features associated with such a crane system in its moving mechanism. In other embodiments, the trolley 108 may be driven via an external drive mechanism, such as a screw driver or annular ring. A motor may be provided to enable movement of the gantry / bridge portion, wherein the gantry / bridge is movable. A gearbox may be connected to the wheels, etc., to drive the gantry / bridge. The gantry / bridge may be mounted to a gantry, rail, or support structure to allow its horizontal movement. The bridge may include one or more wheels configured to engage the ground or support structure (if present).

[0059] An electrical housing 66 is mounted to the trolley. The housing 66 may house one or more electrical systems, control systems, and / or power supplies. A remote controller (not shown) may be provided to provide operation of the crane 102. The remote controller may allow adjustment of the trolley's position along the gantry 104 and / or the vertical position of the load. The remote controller may be wired or wireless. The remote controller may include an operating panel or a radio controller. It is understood that the exact form of the crane system 102 or any of its auxiliary aspects is not relevant to this present invention.

[0060] The lifting member 14 is connected to the lifting device 106. The lifting member 14 may include ropes, wires, or other suitable components to provide lifting of the load during use. The lifting member 14 includes a connector 16 for connection to the load during use. The connector 16 may include a hook, clasp, or other suitable connector. The connector 16 is connected to the lifting device 106 via a pulley arrangement formed using the lifting member 14. In some embodiments, the lifting member 14 may include a polymer or synthetic material or steel. The polymer may include ultra-high molecular weight polyethylene.

[0061] The load attached to connector 16 is prone to swaying in the air. Another factor causing the rope line to deviate below the lifting device is the raising / lowering connector 16, and the rope line will have to be adjusted slightly for each lifting height. These deviations result in the need for minor movements of the upper sheave and the fixing points of the lifting component.

[0062] 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. A reel (e.g., a rope reel) or spindle may be provided to store the lifting member 14. Figure 2Ideally visible, 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 enable movement in the vertical direction (i.e., rotation of the drum). The motor may include a gearbox 15C.

[0063] The second portion of the lifting member 14 is held via a pulley assembly 20 (i.e., a sheave or roller). The pulley assembly 20 is connected to the first transverse member 22. The transverse member 22 extends across the width of the trolley 108. The transverse member 22 may form part of the frame 28 or structure of the trolley. In use, the lifting member 14 passes through the pulley assembly 20 to form a loop / return. Thus, the lifting member 14 extends back around the connector 16 and is secured at its end to the trolley 108 by an attachment device 44, which includes a lifting member fixing device 1 mounted on a bracket 52. The bracket 52 serves as a fixing point for the lifting member fixing device 1.

[0064] Figures 4-6 An embodiment of a lifting member fixing device 1 for mounting the composite lifting member 14 of a crane system 102 is shown. The lifting member fixing device 1 may be equivalently referred to as a composite rope fixing device 1 or a composite rope fastening device 1.

[0065] The lifting component fixing device 1 includes a body 2. The body 2 includes: a top mounting device 5 mounted on a trolley 108 of the crane 102; a lifting component outlet 7; and a grooved arm 3, which includes at least one groove 3-1 forming multiple loops, the groove 3-1 being adapted to receive the composite lifting component 14.

[0066] According to one embodiment, the grooved arm 3 includes a distal end 3-2, which is adapted to secure a synthetic rope or the lifting member 14 at a knot 14-1 of the lifting member after the lifting member has rotated / wound. Preferably, the grooved arm 3 includes a horizontal solid shaft.

[0067] The synthetic rope 14 is configured to be wound around the grooved arm 3 to provide suitable stopping friction with a safety factor between the lifting component fixing device and the synthetic rope. Suitable stopping friction can be achieved by an appropriate number of turns (e.g., eight turns of the rope around the grooved arm 3).

[0068] According to one embodiment, the distal end 3-2 includes a lifting member end interface 3-3 for securing the lifting member 14 to the lifting member knot 14-1. The end knot 14-1 of the synthetic rope 14 can be secured by, for example, a washer 70 and a ring pin 71 inserted into the end interface hole 3-4 (in... Figure 10(As shown in the diagram) It is held around the protruding end interface 3-3 for easy installation. To attach the synthetic rope lifting member to the end interface 3-3, the lifting member is divided into two branches, with the branches passing through the end interface 3-3 on both sides. The branches are then tied together on the other side of the end interface 3-3 with a figure-eight knot, where the number 8 is formed along the length of the rope. Washers 70 and loops 71 secure the joint so that the branches are not lifted off the end interface.

[0069] According to one embodiment, the top mounting device 5 includes a mounting channel 5-1 for mounting the lifting component fixing device 1 to the bracket 52 of the attachment device 44 for attachment to the transverse component 26 of the trolley 108.

[0070] According to one embodiment, the top mounting device 5 includes a mounting extension 5-2, such as a mounting flange projecting vertically from the body 2. According to one embodiment, the mounting channel 5-1 is configured to pass through the mounting extension 5-2.

[0071] According to one embodiment, the lifting component fixing device 1 includes a lifting component path 6 located on the body 2 between the mounting extensions 5-2. According to one embodiment, the path 6 is formed by the upper surface of the body and the inner surface of the mounting extensions 5-2.

[0072] The path of the synthetic rope preferably extends from the groove 3-1 of the grooved arm 3 to the center of gravity 2-1 of the top mounting device 5 of the lifting component fixing device 1, more preferably along the groove, and downward through the smooth outlet 7 located at the center of the lifting component fixing body 2, thereby allowing the synthetic rope 14-2 to bend at a certain rope angle in any direction below.

[0073] According to one embodiment, the load measuring pin 72 (in...) Figure 10 (As shown in the diagram) It can be assembled onto the bracket 52 of the attachment device 44 via mounting channel 5-1 and fixing points such as flange 58. The load measurement thus provided can provide an electrical signal to the central processing unit of the crane system so that the static / dynamic load of the crane can be measured. Load sequences can be measured to record the life of the lifting component 14, rope fixing point 44 and / or lifting device. The load measuring pin can be replaced with a solid pin or shaft that does not provide measurement.

[0074] According to one embodiment, the body 2 includes a protrusion 4 located on the opposite side of the grooved arm 3, the protrusion 4 providing a counterweight 4-1, the counterweight 4-1 being configured to keep the lifting member fixing device 1 balanced when no effective load is attached to the crane via the lifting member fixing device 1.

[0075] According to one embodiment, the grooved arm 3 and the counterweight 4-1 with the protrusion are arranged on opposite sides of the body 2, thereby forming branches in the body 2. The counterweight 4-1 may be made of a detachable component.

[0076] According to one embodiment, the grooved arm 3 and the protrusion 4 form relatively asymmetrical branches relative to the center of gravity 2-1 of the lifting member body 2.

[0077] According to one embodiment, the lifting component fixing device 1 includes an asymmetrical shape formed by grooved arm branches 3 and counterweight branches 4, 4-1 on opposite sides of the center of gravity 2-1 of the top mounting device 5.

[0078] The asymmetrical shape is designed to address the limited space issue in low-profile trolleys and to leave the maximum lifting height (HOL) below the lifting device.

[0079] According to one embodiment, the center of gravity 2-1 of the lifting component fixing device 1 is located at the lifting component outlet 7.

[0080] According to one embodiment, the groove 3-1 for receiving the lifting component is adapted to a smaller bending radius of the composite lifting component 14 compared to the bending radius of the steel lifting component.

[0081] According to one embodiment, the bending radius of the lifting member 14 on the lifting member fixing device 1 is arranged to vary to optimize the lifespan of the lifting member, with the bending radius being the largest near the lifting member outlet 7. Therefore, the bending radius is larger near the outlet point 7—where the force and contact pressure of the lifting member are greater.

[0082] According to one embodiment, at least one lifting component groove 3-1 includes a varying groove radius to optimize the lifespan of the lifting component.

[0083] According to one embodiment, along the path of the lifting member 14, from the grooved arm 3 to the body 2, the varying groove radius increases toward the lifting member outlet 7, particularly along the lifting member path 6 from the grooved arm 3 to the body.

[0084] According to one embodiment, the number of turns of at least one lifting member groove 3-1 around the grooved arm 3 is 4 to 12, preferably 6 to 10, and most preferably 8.

[0085] According to one embodiment, the lifting component fixing device 1 is preferably a cast steel component with partially machined parts.

[0086] According to one embodiment, the lifting component outlet 7 includes a downward-facing opening 8 located below the top mounting device 5 for the lifting component 14, which is preferably flared.

[0087] Rope pulley device 20 in Figures 7-9The diagram is shown in more detail below. The pulley assembly 20 is mounted to the first transverse member 22. In this embodiment, the transverse member 22 is fixedly (i.e., non-rotatably) mounted at both ends of the tubular transverse member on the arms 50C, 50D of the frame 28 of the trolley 108 via bolt joints 27. The pulley assembly 20 includes a housing 24. The housing 24 is configured to at least partially accommodate the pulley 25. The pulley 25 is configured to be rotatably mounted to the housing 24, for example using bearings. The pulley includes a grooved wheel, a roller, etc. The first end 29 of the housing 24 is rounded / curved to conform to the shape of the pulley 25. A hole 30 is provided, thereby providing space for the bearing / shaft of the pulley 25.

[0088] The second end 32 of the housing 24 is configured to receive the transverse member 22. Therefore, the housing 24 can provide a bracket or support for the pulley 25. The housing 24 includes a channel 34 for receiving the transverse member 22. This channel 34 extends transversely through the housing 24. The channel 24 is perpendicular to the axis of rotation of the pulley 25. The second end 32 includes a circular end configured to correspond to the tubular shape of the transverse member 22. Therefore, the housing 24 includes a component that fits snugly with the transverse member 22. A sliding member 36 can be received between the housing 24 and the transverse member 22.

[0089] like Figure 7 As best seen in the image, housing 24 comprises a sheet. This sheet is bent or otherwise shaped. The sheet comprises a single piece, thereby allowing for easier manufacturing and shaping. 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.

[0090] like Figure 3 and Figure 9 As best seen, the retaining member 38 is configured to hold the housing 24 in place on the transverse member 22. The retaining member 38 includes a circular / bow-shaped bracket. The retaining member 38 is received within a recess 40 located in the housing 24. The recess 40 may define an elongated slot. The retaining member 38 and the slot 40 may include a tight fit. This transversely constrains the housing 24 relative to the transverse member 22 in two axial directions. The slot 40 is provided in a second end 32 of the housing. Therefore, the retaining member 38 can be secured to the sliding member 36 and / or the transverse member. Suitable fastening devices may be provided on the retaining member 38 and / or the sliding member 36 / transverse member 22. For example, the retaining member 38, the sliding member 36, and the transverse 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 transverse member 22.

[0091] The angular length of the groove 40 is longer than the angular length of the fixing member 38. This allows the housing 24 to rotate at an angle limited by the difference in angular length. The housing 24 can rotate from 5 to 45 degrees. A stop member 42 is disposed on the fixing device 38 abutting against the housing 24 to limit movement between the stop member 42 and the housing 24. 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 8 In one embodiment, the stop member 42 includes a raised lip or flange. In other embodiments, the stop member 42 may include one end of the retaining member 38 and / or a fastener disposed thereon.

[0092] Reference Figure 9 As can be seen, a gap 43 is provided between the fixing 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). When the housing member abuts against the fixing member 38, further rotation is prevented. Therefore, the size of the gap 43 defines the range of movement of the housing 24.

[0093] The sheave device 20 and the attachment device 44 that provides the fixing point 1 at the end 14-1 of the lifting member are attached in such a way that rotational movement about the transverse members 22, 26 is allowed, preferably to a certain extent, but longitudinal movement along the transverse members 22, 26 is restricted.

[0094] Reference Figure 3 and 10 As previously described, the lifting member 14 is fixed to the trolley 108. The lifting member 14 is attached to the trolley 108 via an attachment device 44. The attachment device is located on the side of the trolley 108 opposite to the sheave assembly 20. This facilitates direct positioning of the connector 16 or the hook pulley block 16 below the trolley 108. The attachment device is located on the second transverse member 26. The second transverse member 26 is parallel to the first transverse member 22. In use, the first transverse member 22 and the second transverse member 26 are located on either side of the gantry 104.

[0095] like Figure 3 As best seen in the center, the first transverse member 22 and the second transverse member 26 are connected via corresponding beams 48A and 48B. Arms 50A-50D are provided to connect the transverse members 22 and 26 to the beams 48A and 48B. Wheels 10 are provided on the arms 50A-50D.

[0096] Attachment device 44 includes Figure 11 The bracket 52 shown is configured to accommodate the transverse member 26. The bracket 52 includes a channel 54. The second transverse member 26 is disposed within the channel 54 during use. The bracket 52 is generally annular or ring-shaped.Figures 4-6 The lifting component fixing device 1 shown allows for attachment of the lifting component 14 during use. The lifting component fixing device 1 is mounted to a fixing point on the bracket 52, such as a flange 58. The lifting component fixing device 1 can be rotatably mounted to the bracket 52. This can compensate for / absorb some lateral movement of the lifting component. The bracket 52 can be shaped to limit said rotation (e.g., less than 5 or 10 degrees) to prevent undesirable swaying. The bracket 52 may include a raised sidewall 58 against which the lifting component fixing device 1 can abut.

[0097] In other embodiments, the lifting component fixing device may include a sleeve or bushing that engages with a wedge (not shown) for use with metal lifting components such as wire ropes. Therefore, bracket 52 can be used to receive lifting component fixing devices for both metal and polymer lifting components.

[0098] In some embodiments, a sliding member 36 may be provided to allow the bracket 52 to rotate about the transverse member 26. The sliding member is disposed on the bracket 52 about the transverse member 26. The sliding member may comprise a low-friction material compared to steel, having a low coefficient of friction, while the transverse members 22, 26 are steel or stainless steel. The sliding member may be a polymer. For example, the sliding member may comprise one or more of the following: PTFE; PEEK; PPS; nylon; acetal; and / or polyester. In one embodiment, the sliding member is configured to extend partially about the transverse member 26. For example, the sliding member may comprise an arcuate shape. In other embodiments, the sliding member 36 includes a tube, cylinder, or sleeve configured to surround the transverse member 26.

[0099] The bracket 52 can be held on the second transverse member 26 via a fixing member 38. The fixing member 38 is configured to be received within a recess 64 located in the bracket 52. The fixing member 38 is curved / arc-shaped. Therefore, the recess 64 correspondingly includes an arcuate groove. The fixing member 38 is secured to the transverse member 26 via a fastener 67. The fastener may include bolts, screws, or other suitable fasteners.

[0100] The angular length of the recess 64 is greater than the angular length of the fixing member 38. 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 38. The bracket 52 can rotate from 5 to 45 degrees; preferably, from 5 to 10 degrees. The fastener 67 can act as a stop at one or both ends of the fixing member 38. One or more stop members are positioned such that the bracket 52 can rotate relative to the trolley 108 within a predetermined angular range, and / or restrict the longitudinal movement of the bracket 52 along a portion of the crane trolley 108. The bracket 52 and the transverse member 26 are coaxial, thus limiting the radial displacement of the bracket 52.

[0101] This arrangement can be implemented in "low profile" or "low headroom" crane systems. Such systems can be installed in locations with limited vertical space. Positioning the sheave assembly 20 and attachment device 44 on the transverse members 22, 26 allows them to be raised to or above the height of the gantry 104 during use. This increases the vertical clearance / height of the lifting system 106. The lifting mechanism 18 and / or other components positioned on the side of the trolley 108 also increase the vertical clearance / height. The lifting mechanism 18 is mounted to the booms 50A, 50B for easy side attachment.

[0102] Using the new lifting component fixing device 1, the synthetic rope will not collide with the corresponding object. The lifting component fixing device provides sufficient clearance under small lateral tension loads. The rope is easy to install and replace, and the appropriate length of the lifting component can be adjusted during rope winding, and a similar mounting device is provided for the load measuring pin regardless of whether the lifting component is a synthetic rope or a wire rope. If it is made of steel, a self-locking wedge fixing device is used.

Claims

1. A lifting component fixing device (1) for mounting the lifting component (14) of a crane system (102), comprising: The entity (2) includes: Top mounting device (5) installed on the crane trolley (108) of the crane system; Lifting component outlet (7); Its features are, The body (2) further includes a grooved arm (3), the grooved arm (3) including at least one groove (3-1) forming multiple loops, the groove being adapted to receive the composite lifting component; and The grooved arm includes a distal end (3-2) adapted to secure the composite lifting member at a knot (14-1) of the lifting member after the plurality of turns of the lifting member.

2. The lifting component fixing device according to claim 1, wherein, The grooved arm (3) includes: a horizontal solid shaft; and / or wherein the bending radius of the lifting member on the lifting member fixing device (1) is set to be variable to optimize the service life of the lifting member; and / or wherein at least one lifting member groove (3-1) includes a variable groove radius to optimize the service life of the lifting member.

3. The lifting component fixing device according to claim 1 or 2, wherein, The body (2) includes a protrusion (4) opposite the grooved arm (3), the protrusion providing a counterweight (4-1) configured to: maintain the lifting member fixing device (1) in a balanced state when no effective load is attached to the crane via the lifting member fixing device; and / or The center of gravity (2-1) of the lifting component fixing device is located at the outlet (7) of the lifting component.

4. The lifting component fixing device according to claim 3, wherein, The counterweights (4-1) of the grooved arm (3) and the protrusion (4) are arranged on opposite sides of the body (2) to form branches in the body.

5. The lifting component fixing device according to claim 3, wherein, The grooved arm (3) and the protrusion (4) form relatively asymmetrical branches relative to the center of gravity (2-1) of the lifting component body (2).

6. The lifting component fixing device according to claim 1, wherein, The lifting component fixing device (1) includes an asymmetrical shape, which is formed by a first branch formed by the grooved arm (3) and a second branch formed by a counterweight (4-1) located on the opposite side of the center of gravity (2-1) of the top mounting device (5).

7. The lifting component fixing device according to claim 1, wherein, The groove (3-1) of the lifting component is adapted to the bending radius of the composite lifting component (14) which is smaller than that of the steel lifting component.

8. The lifting component fixing device according to claim 1, wherein, The at least one lifting component groove (3-1) includes 4 to 12 lifting component loops.

9. The lifting component fixing device according to claim 8, wherein, The at least one lifting component groove (3-1) includes 6 to 10 lifting component loops.

10. The lifting component fixing device according to claim 9, wherein, The at least one lifting component groove (3-1) includes eight lifting components encircling each other.

11. The lifting component fixing device according to claim 1, wherein, The lifting component fixing device (1) is a cast steel component.

12. The lifting component fixing device according to claim 1, wherein, The lifting component outlet (7) includes a downward opening (8) for the lifting component located below the top mounting device (5).

13. The lifting component fixing device according to claim 12, wherein, The opening (8) is trumpet-shaped.

14. An attachment device (44) for mounting the lifting component fixing device (1) according to any one of the preceding claims, characterized in that, The attachment device (44) includes a bracket (52) having a fixing point (58) for securing the lifting member thereto during use, and a channel (54) for receiving a portion of the trolley (108) of the crane system (102) during use.

15. The attachment device according to claim 14, wherein, The attachment device (44) includes a fixing member (38) configured to be attached to the trolley (108) in use, and wherein the bracket (52) includes a recess (64) therein for receiving the fixing member to constrain the position of the bracket on the trolley.

16. The attachment device according to claim 14 or 15, wherein, The attachment device (44) includes a sliding member (36) configured to be positioned between the bracket (52) and the trolley (108) during use to facilitate relative rotation between the bracket and the trolley.

17. The attachment device according to claim 16, wherein, The sliding component includes a sleeve made of low-friction material.

18. A crane trolley (108), characterized in that, The crane trolley (108) includes an attachment device (44) according to any one of claims 14 to 17, wherein the bracket (52) is mounted to the support (22, 26), beam or rod of the trolley.

19. A crane system (102), characterized in that, The crane system (102) includes a crane trolley (108) as claimed in claim 18.

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