A cable crane trolley with pulleys arranged laterally

Abstract

This invention relates to the field of cable crane equipment technology, and in particular to a cable crane trolley with transversely arranged pulleys. Compared with the prior art, this cable crane trolley with transversely arranged pulleys adds steel sections or box beams as bending-resistant components, and the wheel axles only bear shear force and no longer bear bending moment, thus improving bending and torsional resistance. By changing the vertical arrangement to a transverse arrangement, the lifting cable steering pulley is no longer located directly below the traveling pulley, but is laterally offset by a certain distance, so the trolley is no longer obstructed when crossing the cable saddle. Crossing auxiliary devices are added to both sides of the trolley, so that during the crossing of the cable saddle, the trolley is suspended in the air, the traveling pulley of the trolley is detached from the load-bearing cable and located directly above it, and the trolley does not contact the cable saddle. After the crossing is completed, the traveling pulley of the trolley falls back onto the load-bearing cable. If the crossing auxiliary devices are not added, the pulley flanges need to be thickened so that the traveling pulley of the trolley rolls over the cable saddle pulley, and the top surfaces of the flanges of each pulley contact each other when rolling over the pulley.

Description

Technical Field

[0001] This invention relates to the field of cable crane equipment technology, and in particular to a cable crane trolley with pulleys arranged laterally. Background Technology

[0002] Cable cranes are widely used in bridge hoisting and construction due to their strong adaptability and crossing capabilities. The trolley, as one of the core components, can travel on the load-bearing cable and realize the horizontal and vertical movement of the hoisted object by controlling the release and retraction of the traction cable and the hoisting cable.

[0003] In existing technologies, the trolley travel pulley and the lifting cable steering pulley generally adopt a vertical arrangement, such as... Figure 1 As shown, the sports car mainly consists of steel plate 1, lifting cable steering pulley shaft 2, and traveling pulley 3. The lifting cable steering pulley 4 is located below the traveling pulley 3. Sports cars with this structure have the following problems:

[0004] (1) Poor torsional and bending resistance

[0005] The force transmission route of the suspended object 5 is as follows: suspended object 5 --> lifting device 6 --> lifting cable 7 --> lifting cable steering pulley 4 --> lifting cable steering pulley shaft 2 --> steel plate 1 --> traveling pulley shaft 8 --> traveling pulley 3 --> load-bearing cable 9. To accommodate the bearings, the diameters of the axles are generally small, and circular cross-sections have poor bending resistance. When the wheel bearings are subjected to bending moments, they undergo significant bending deformation. Therefore, this type of trolley has poor torsional and bending resistance. When the lateral width of the trolley is small, this problem can be ignored. However, in cases where the suspended object is heavy and there are many load-bearing cables, the lateral width of the trolley will inevitably be large, and this problem cannot be ignored.

[0006] (2) Unable to cross the rope saddle

[0007] For multi-tower cable cranes, if the trolley can cross the saddle to work between different cable spans, instead of having a trolley for each span, the cost of the cable crane can be significantly reduced. The trolley travels on the load-bearing cable 9, which is supported by the saddle; therefore, the trolley and the saddle are in the same vertical plane. Because the trolley is arranged vertically, the lifting cable guide pulley 4, the lifting cable 7, the lifting device 6, and the lifted object 5 are all located directly below the traveling pulley 3; therefore, in the prior art, the trolley cannot cross the saddle. Summary of the Invention

[0008] To address the shortcomings and problems of existing cable crane trolleys, a cable crane trolley with transversely arranged pulleys is provided.

[0009] The technical solution adopted by the present invention to solve its technical problem is as follows: A cable crane trolley with transversely arranged pulleys of the present invention includes a steel plate, a traveling pulley, a lifting cable steering pulley, a load-bearing cable, and a lifting cable; an anti-bending component is provided above the steel plate, and the traveling pulley, the lifting cable steering pulley, the load-bearing cable, and the lifting cable are all provided below the anti-bending component; the traveling pulley and the lifting cable steering pulley are arranged transversely.

[0010] The bending-resistant components are made of structural steel or steel box girders.

[0011] The traveling pulley and the lifting cable steering pulley are laterally offset by a certain distance.

[0012] The sports car is also equipped with overturning assistance devices on both sides.

[0013] The aforementioned overpass assist device includes a support slider, a guide slider, a slide rail, and a slide rail stop.

[0014] The traveling pulley is equipped with a traveling pulley shaft; the lifting cable steering pulley is equipped with a lifting cable steering pulley shaft.

[0015] The sports car also had a suspended object and lifting equipment hanging underneath it.

[0016] The force transmission route of the sports car is as follows: the object being lifted --> the lifting device --> the lifting rope --> the lifting rope steering pulley --> the lifting rope steering pulley shaft --> the steel plate --> the bending component --> the steel plate --> the traveling pulley shaft --> the traveling pulley --> the load-bearing rope.

[0017] The beneficial effects of this invention are as follows: Compared with the prior art, the cable crane trolley with transversely arranged pulleys of this invention adds steel sections or box beams as anti-bending components. Due to the addition of anti-bending components, the wheel axle only bears shear force and no longer bears bending moment, thus improving the anti-bending and anti-torsional performance. By changing the vertical arrangement to a transverse arrangement, the lifting cable steering pulley is no longer located directly below the traveling pulley, but is laterally offset by a certain distance. In this way, the lifting cable steering pulley, lifting cable, lifting gear, and the suspended object are not directly below the traveling wheel of the trolley, and the trolley is no longer obstructed from crossing the cable saddle. Crossing auxiliary devices are added to both sides of the trolley so that during the crossing of the cable saddle, the trolley is suspended in the air, the traveling pulley of the trolley is detached from the load-bearing cable and located directly above it, and the trolley does not contact the cable saddle. After the crossing is completed, the traveling pulley of the trolley falls back onto the load-bearing cable. If the crossing auxiliary devices are not added, the pulley flanges need to be thickened so that the traveling pulley of the trolley rolls over the cable saddle pulley, and the top surfaces of the flanges of each pulley contact each other when rolling over the pulley. Attached Figure Description

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates a cable crane trolley with transversely arranged pulleys according to the present invention.

[0019] Figure 1 This is a structural schematic diagram of a cable crane trolley in the prior art.

[0020] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure in the CC direction;

[0021] Figure 3 This is a schematic diagram of the structure of a cable crane trolley with pulleys arranged laterally according to the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of a cable crane trolley with pulleys arranged laterally according to the present invention when it overturns the cable saddle;

[0023] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the CC direction. Detailed Implementation

[0024] like Figures 3 to 5 As shown, a cable crane trolley with transversely arranged pulleys according to the present invention includes a steel plate 1, a traveling pulley 3, a lifting cable steering pulley 4, a load-bearing cable 9, and a lifting cable 7. The traveling pulley 3 is fitted with a traveling pulley axle 8; the lifting cable steering pulley 4 is fitted with a lifting cable steering pulley axle 2. The object to be lifted 5 and a lifting device 6 are also suspended below the trolley.

[0025] like Figures 3 to 5 As shown, the traveling pulley 3 and the lifting cable steering pulley 4 are arranged laterally, that is, the lifting cable steering pulley 4 is no longer located directly below the traveling pulley 3, but is laterally offset by a certain distance between the traveling pulley 3 and the lifting cable steering pulley 4. In this way, the lifting cable steering pulley 4, the lifting cable 7, the lifting device 6 and the suspended object 5 are not directly below the traveling pulley 3, and the trolley is no longer obstructed when it crosses the cable saddle, even if the trolley has the ability to cross the cable saddle.

[0026] like Figures 3 to 5 As shown, a bending-resistant component 10 is installed above the steel plate 1. The traveling pulley 3, the lifting cable steering pulley 4, and the load-bearing cable 9 are all located below the bending-resistant component 10. The bending-resistant component 10 is made of structural steel or a steel box girder. After installing the bending-resistant component 10, the force transmission route is as follows: the object being lifted 5 --> the lifting device 6 --> the lifting cable 7 --> the lifting cable steering pulley 4 --> the lifting cable steering pulley shaft 2 --> the steel plate 1 --> the bending-resistant component 10 --> the steel plate 1 --> the traveling pulley shaft 8 --> the traveling pulley 3 --> the load-bearing cable 9. In the above force transmission route, due to the addition of the bending-resistant component 10, each wheel axle only bears shear force and no longer bears bending moment, thus improving the bending and torsional resistance of the trolley.

[0027] like Figures 3 to 5As shown, the vehicle is also equipped with overtaking auxiliary devices on both sides. These devices include a support slider 11, a guide slider 12, a slide rail 13, and a slide rail stop 14. The support slider 11, guide slider 12, slide rail 13, and slide rail stop 14 cooperate with the cable saddle pad beam 15, on which a cable saddle pulley 16 is also installed. The guide slider 12 and slide rail stop 14 ensure that the vehicle's traveling pulley 3 remains aligned with the load-bearing cable 9 during overtaking of the cable saddle. Replacing the slider with a pulley achieves the same effect. Alternatively, if neither slider nor pulley is used, a scheme can be adopted where "the vehicle's traveling pulley rolls over the cable saddle pulley like a wheel (the top surface of the traveling pulley's rim contacts the top surface of the cable saddle pulley's rim)".

[0028] In summary, compared with the prior art, the present invention provides a cable crane trolley with a transversely arranged pulley system. This system incorporates steel sections or box girders as bending-resistant components. Due to the addition of these components, the wheel axles only bear shear force and no longer bear bending moment, thus improving bending and torsional resistance. Changing the vertical arrangement to a transverse arrangement improves the system. The lifting cable steering pulley is no longer directly below the traveling pulley, but is offset laterally by a certain distance. This ensures that the lifting cable steering pulley, lifting cable, lifting gear, and the load are not directly below the trolley's traveling wheel, and the trolley's crossing of the cable saddle is no longer obstructed. Adding crossing auxiliary devices on both sides of the trolley allows it to be suspended in mid-air during crossing, with the traveling pulley detached from the load-bearing cable and positioned directly above it. The trolley does not contact the cable saddle. After crossing, the traveling pulley falls back onto the load-bearing cable. Without these crossing auxiliary devices, the pulley flanges would need to be thickened so that the traveling pulley rolls over the cable saddle pulley, and the top surfaces of the pulley flanges contact each other during this process.

[0029] The present invention has been described in an illustrative rather than restrictive manner according to embodiments thereof. However, it should be understood that the scope of protection of the present invention is not limited thereto. Without departing from the relevant scope of protection defined by the claims, those skilled in the art can make changes and / or modifications. Any modifications, equivalent substitutions, etc., based on this should be covered within the scope of protection of the present invention.

Claims

1. A cable crane trolley with pulleys arranged laterally, characterized in that: It includes a steel plate, a traveling pulley, a lifting cable steering pulley, a load-bearing cable, and a lifting cable; an anti-bending component is installed above the steel plate, and the traveling pulley, lifting cable steering pulley, load-bearing cable, and lifting cable are all installed below the anti-bending component; the traveling pulley and the lifting cable steering pulley are arranged laterally. The sports car is also equipped with overturning auxiliary devices on both sides. The overturning auxiliary devices include support sliders, guide sliders, slide rails and slide rail guards. The traveling pulleys are equipped with traveling pulley shafts. The lifting cable steering pulleys are equipped with lifting cable steering pulley shafts.

2. The cable crane trolley with transversely arranged pulleys according to claim 1, characterized in that: The bending-resistant components are made of structural steel or steel box girders.

3. The cable crane trolley with transversely arranged pulleys according to claim 1, characterized in that: The traveling pulley and the lifting cable steering pulley are laterally offset by a certain distance.

4. The cable crane trolley with transversely arranged pulleys according to claim 1, characterized in that: The sports car also had a suspended object and lifting equipment hanging underneath it.

5. A cable crane trolley with transversely arranged pulleys according to claim 4, characterized in that: The force transmission route of the aforementioned sports car is as follows: the object being lifted --> the lifting device --> the lifting rope --> the lifting rope steering pulley --> the lifting rope steering pulley shaft --> the steel plate --> the bending-resistant component --> the steel plate --> the traveling pulley shaft --> the traveling pulley --> the load-bearing rope.

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