Ring-type sliding contact line apparatus, and quayside crane comprising ring-type girder

Abstract

The present invention provides a ring-type sliding contact line apparatus, and a quayside crane comprising a ring-type girder. The ring-type sliding contact line apparatus is used for the quayside crane comprising the ring-type girder. The ring-type sliding contact line apparatus comprises: a plurality of sliding contact line brackets, arranged below the ring-type girder at intervals and forming a ring corresponding to the ring-type girder; a control sliding contact line group, correspondingly arranged on the plurality of sliding contact line brackets and having a ring shape corresponding to the ring-type girder; a power supply sliding contact line group, correspondingly arranged on the plurality of sliding contact line brackets and having a ring shape corresponding to the ring-type girder, the power supply sliding contact line group being located below the control sliding contact line group; and a carbon brush assembly having one end separately slidably and electrically connected to the control sliding contact line group and the power supply sliding contact line group, and the other end configured to be electrically connected to trolleys on the ring-type girder. The ring-type sliding contact line apparatus of the present invention has a compact structure and can stably supply power and transmit signals.

Description

An annular trolley line device and a quay crane with an annular girder

[0001] The present application claims priority to the Chinese Patent Application No. 202520274841.5, filed on February 20, 2025, and entitled "An annular trolley line device and a quay crane with an annular girder", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of power supply equipment, in particular to an annular trolley line device and a quay crane with an annular girder. BACKGROUND

[0003] The trolley line power supply system, also known as the sliding contact line or the sliding line power supply, is an electrical system for providing power to mobile equipment, which generally consists of power lines, control lines and communication lines. At present, there are many quay cranes using the trolley line power supply system in the port. The conventional quay crane is provided with only one car, which reciprocates forward and backward. Since only one car needs to be powered and communicated, the power supply and communication are relatively easy when using the trolley line power supply, so the number of sliding lines is small, and since the trolley line does not interfere with the car, the power lines, control lines and communication lines can be arranged in parallel or vertically. However, in the circular continuous quay crane, multiple (≥3) load cars work simultaneously, and the cars need to circulate on the straight line and the semicircular line. Since each car includes an independently controlled lifting mechanism and a car driving mechanism, each car needs to be powered and communicated separately, and the current load in the system is large, so the number of sliding lines needs to be increased to supply power and communicate separately. On the one hand, if the conventional trolley line arrangement is followed, the power lines arranged in parallel or vertically occupy a large space and are difficult to arrange. On the other hand, when the car passes through the curve quickly, the power lines, control lines and communication lines arranged in parallel or vertically in the trolley line are subjected to a large impact and only one side is stressed, so the connection between the car and the trolley line is easily stuck, and the power supply stability and signal stability are low. SUMMARY

[0004] Therefore, the present application provides an annular trolley line device and a quay crane with an annular girder, which can reduce the occupied space and improve the power supply stability and signal transmission stability.

[0005] To solve at least one of the above technical problems, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides an annular trolley line device for a quay crane with an annular girder, the annular trolley line device comprising:

[0007] A plurality of slide wire supports are arranged under the ring-shaped girder and form a ring corresponding to the ring-shaped girder.

[0008] A control slide wire group is arranged on the plurality of slide wire supports and forms a ring corresponding to the ring-shaped girder.

[0009] A power supply slide wire group is arranged on the plurality of slide wire supports and forms a ring corresponding to the ring-shaped girder, and is located below the control slide wire group.

[0010] A carbon brush assembly is electrically connected to the control slide wire group and the power supply slide wire group at one end, and is electrically connected to the trolley on the ring-shaped girder at the other end.

[0011] In an embodiment of the present application, each slide wire support comprises:

[0012] A horizontal support is arranged under the ring-shaped girder, and the control slide wire group is arranged on the side of the horizontal support away from the ring-shaped girder.

[0013] A vertical support is arranged below the horizontal support and extends in the vertical direction, and the power supply slide wire group is arranged on the vertical support along the length direction of the vertical support.

[0014] A reinforcing rib is connected to the horizontal support at one end and to the vertical support at the other end.

[0015] In an embodiment of the present application, the control slide wire group comprises a plurality of control slide wires, and the plurality of control slide wires form a plurality of rings corresponding to the ring-shaped girder in the horizontal direction.

[0016] In an embodiment of the present application, the power supply slide wire group comprises a plurality of power supply slide wires arranged in the vertical direction, and each power supply slide wire forms a ring corresponding to the ring-shaped girder.

[0017] In an embodiment of the present application, the carbon brush assembly comprises:

[0018] A horizontal carbon brush is arranged in the horizontal direction and is electrically connected to each control slide wire.

[0019] A vertical carbon brush is arranged in the vertical direction and is electrically connected to each power supply slide wire.

[0020] A carbon brush support is arranged with the horizontal carbon brush and the vertical carbon brush, and is used to connect the trolley.

[0021] In an embodiment of the present application, the carbon brush support comprises:

[0022] The transverse carbon brush support is arranged in a horizontal direction, and one end of the transverse carbon brush support is connected with the transverse carbon brush, and the other end of the transverse carbon brush support is connected with the trolley.

[0023] The longitudinal carbon brush support is arranged below the transverse carbon brush support in a vertical direction and is connected with the transverse carbon brush support, one end of the longitudinal carbon brush support is connected with the longitudinal carbon brush, and the other end of the longitudinal carbon brush support is connected with the trolley.

[0024] In an embodiment of the present application, the trolley comprises:

[0025] The frame assembly comprises a bottom frame and two frames, the two frames are arranged opposite to each other on the bottom frame in the width direction of the ring-shaped girder, and the ring-shaped girder is arranged between the two frames and below the bottom frame.

[0026] The two pairs of wheel assemblies are arranged on the frames located on the inner side of the ring-shaped girder and are in rolling connection with the inner side rails of the ring-shaped girder, and the other pair is arranged on the frames located on the outer side of the ring-shaped girder and is in rolling connection with the outer side rails of the ring-shaped girder, each wheel assembly can rotate for steering and is driven by an independent driving member to walk along the inner side rail or the outer side rail. In an embodiment of the present application, the ring-shaped trolley wire device further comprises:

[0027] The waveguide wire is arranged on the plurality of horizontal supports and located on the side of the control slide wire group away from the vertical support, and the waveguide wire forms a ring corresponding to the ring-shaped girder in the horizontal direction.

[0028] In an embodiment of the present application, the transverse carbon brush support is provided with a waveguide communication interface, and the transverse carbon brush support is in sliding electrical connection with the waveguide wire through the waveguide communication interface.

[0029] In a second aspect, the present application further provides a shore crane with a ring-shaped girder, comprising the ring-shaped trolley wire device of any one of the above-mentioned embodiments.

[0030] The above technical solutions of the present application have at least one of the following beneficial effects:

[0031] The ring-shaped trolley wire device of the present application vertically arranges the power supply slide wire group below the idle slide wire group, which can reduce the occupied space and reduce the arrangement difficulty. On the other hand, since the power supply slide wire group is vertically arranged below the control slide wire group, the power supply slide wire group and the control slide wire group can jointly bear the force when the trolley passes through the curve quickly, thereby avoiding excessive wear of the trolley wire device, so that the trolley located at any position of the ring-shaped girder can obtain stable control and power supply, and the power supply stability and signal transmission stability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Fig. 1 is a structural schematic diagram of a shore-to-ship container crane with a ring-shaped girder according to some embodiments of the present application;

[0033] Fig. 2 is a partial structural schematic diagram of a shore-to-ship container crane with a ring-shaped girder according to some embodiments of the present application;

[0034] Fig. 3 is a structural schematic diagram of a ring-shaped trolley line device according to some embodiments of the present application.

[0035] Reference signs: 100, ring-shaped girder; 101, trolley; 102, car frame assembly; 103, bottom frame; 104, car frame; 105, wheel assembly; 106, inner rail; 107, outer rail; 200, trolley line support; 210, horizontal support; 220, vertical support; 230, reinforcing rib; 300, control trolley group; 301, control trolley; 400, power supply trolley group; 401, power supply trolley; 500, carbon brush assembly; 510, transverse carbon brush; 520, longitudinal carbon brush; 530, carbon brush support; 600, waveguide line. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described below in connection with the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0037] Next, a ring-shaped trolley line device according to an embodiment of the present application will be described in detail in connection with the drawings.

[0038] As shown in Figs. 1 to 3, the ring-shaped trolley line device according to the embodiments of the present application can be used in a shore-to-ship container crane with a ring-shaped girder 100, and can include a plurality of trolley line supports 200, a control trolley group 300, a power supply trolley group 400, and a carbon brush assembly 500. The plurality of trolley line supports 200 are arranged at intervals below the ring-shaped girder 100 and form a ring corresponding to the ring-shaped girder 100. The control trolley group 300 is arranged on the plurality of trolley line supports 200 and is a ring corresponding to the ring-shaped girder 100. The power supply trolley group 400 is arranged on the plurality of trolley line supports 200 and is a ring corresponding to the ring-shaped girder 100, and is located below the control trolley group 300. One end of the carbon brush assembly 500 is in sliding electrical connection with the control trolley group 300 and the power supply trolley group 400, respectively, and the other end of the carbon brush assembly 500 is used to be in electrical connection with a trolley 101 on the ring-shaped girder 100.

[0039] In this embodiment, the power supply slide rail assembly 400 is used to provide current to multiple trolleys 101 on the annular beam 100, and the control slide rail assembly 300 is used to transmit control signals to the multiple trolleys 101 on the annular beam 100 and control the current transmitted by the power supply slide rail assembly 400. By setting multiple sliding contact rail supports 200 below the annular beam 100, and the multiple sliding contact rail supports 200 forming a ring corresponding to the annular beam 100, and then arranging the control slide rail assembly 300 and the power supply slide rail assembly 400 on the multiple sliding contact rail supports 200 respectively, and connecting the carbon brush assembly 500 electrically connected to the multiple trolleys 101 on the annular beam 100 to the control slide rail assembly 300 and the power supply slide rail assembly 400 respectively, current can be provided to the multiple trolleys 101 on the annular beam 100, and the multiple trolleys 101 can be controlled respectively, thereby improving the working efficiency of the quay crane. Furthermore, by placing the power supply slide rail group 400 below the control slide rail group 300, compared to placing the power supply slide rail group 400 and the control slide rail group 300 side by side, it can reduce the space occupied and simplify the layout. On the other hand, since the power supply slide rail group 400 is vertically positioned below the control slide rail group 300, when the trolley 101 is rapidly passing through a curve, the power supply slide rail group 400 and the control slide rail group 300 can jointly bear the lateral force transmitted by the trolley 101 through the carbon brush assembly 500, thereby avoiding excessive wear of the sliding contact line device and preventing the carbon brush assembly 500 from getting stuck in the power supply slide rail group 400 or the control slide rail group 300, thus improving power supply stability and signal transmission stability.

[0040] As shown in Figure 3, each sliding contact line bracket 200 includes a horizontal bracket 210, a vertical bracket 220, and a reinforcing rib 230. The horizontal bracket 210 is positioned below the annular beam 100, and the control sliding contact line assembly 300 is correspondingly positioned on the side of the horizontal bracket 210 opposite to the annular beam 100. The vertical bracket 220 is positioned below the horizontal bracket 210 and extends vertically, and the power supply sliding contact line assembly 400 is correspondingly positioned on the vertical bracket 220 along its length. One end of the reinforcing rib 230 is connected to the horizontal bracket 210, and the other end of the reinforcing rib 230 is connected to the vertical bracket 220.

[0041] In this embodiment, the length direction of the vertical support 220 is perpendicular to the plane where the horizontal support 210 is located, and one end of the reinforcing rib 230 is connected to the horizontal support 210, and the other end of the reinforcing rib 230 is connected to the vertical support 220. At this time, the horizontal support 210, the vertical support 220 and the reinforcing rib 230 form a triangular support. The triangular support is lightweight and can bear the large lateral force transmitted by the carbon brush assembly 500 when the trolley 101 passes through the curve at high speed, thereby effectively improving the power supply stability and signal transmission stability.

[0042] As shown in Figure 3, the control slide rail group 300 includes multiple control slide rails 301, which are spaced horizontally to form multiple rings corresponding to the ring beam 100.

[0043] In this embodiment, the multiple control slides 301 in the control slide group 300 are all formed into rings corresponding to the annular beam 100, and a gap is provided between two adjacent control slides 301. Therefore, by providing a gap between two adjacent control slides 301, a buffer space can be provided for the carbon brush assembly 500 when the trolley 101 quickly passes through a curve, avoiding direct collision between the carbon brush assembly 500 and the control slides 301. This prevents excessive wear of the control slides 301 and improves the service life of both the control slides 301 and the carbon brush assembly 500.

[0044] As shown in Figure 3, the power supply slide rail group 400 includes multiple power supply slide rails 401 arranged sequentially in the vertical direction, and each power supply slide rail 401 is a ring corresponding to the ring beam 100.

[0045] In this embodiment, when the trolley 101 passes through a curve at high speed, multiple power supply guide wires 401 arranged in sequence along the vertical direction can be subjected to force simultaneously, thereby bearing the large lateral force transmitted by the carbon brush assembly 500, thus effectively improving the power supply stability and signal transmission stability.

[0046] As shown in Figure 3, the carbon brush assembly 500 includes: a horizontal carbon brush 510, a vertical carbon brush 520, and a carbon brush holder 530. The horizontal carbon brush 510 is arranged horizontally and is slidably electrically connected to each control slide wire 301; the vertical carbon brush 520 is arranged vertically and is slidably connected to each power supply slide wire 401; the horizontal carbon brush 510 and the vertical carbon brush 520 are mounted on the carbon brush holder 530, which is used to connect to the trolley 101.

[0047] In this embodiment, the longitudinal carbon brush 520 is perpendicular to the transverse carbon brush 510, and the transverse carbon brush 510 is slidably connected to each control slide wire 301, while the longitudinal carbon brush 520 is slidably connected to each power supply slide wire 401. The transverse carbon brush 510 and the longitudinal carbon brush 520 always move synchronously, thereby further improving the power supply stability and signal transmission stability.

[0048] In one embodiment of the present invention, the carbon brush holder 530 includes a horizontal carbon brush holder (not shown) and a vertical carbon brush holder (not shown). The horizontal carbon brush holder is arranged horizontally, with one end connected to the horizontal carbon brush 510 and the other end connected to the trolley 101. The vertical carbon brush holder is arranged vertically below the horizontal carbon brush holder and connected to it, with one end connected to the vertical carbon brush 520 and the other end connected to the trolley 101. By separately providing the horizontal and vertical carbon brush holders to support the horizontal carbon brush 510 and the vertical carbon brush 520 respectively, the structural strength can be effectively improved. When the trolley 101 passes through a curve at high speed, damage to the horizontal carbon brush 510 and the vertical carbon brush 520 can be avoided, thus improving their service life.

[0049] As shown in the figure, the vehicle 101 includes a frame assembly 102 and two pairs of wheel assemblies 105. The frame assembly 102 includes a bottom frame 103 and two frames 104. The two frames 104 are arranged opposite each other on the bottom frame 103 along the width direction of the annular beam 100. The annular beam 100 is located between the two frames 104, and the bottom frame 103 is located below the annular beam 100. One pair of wheel assemblies 105 is located on the frame 104 inside the annular beam 100 and is rotatably connected to the inner track 106 of the annular beam 100. The other pair is located on the frame 104 outside the annular beam 100 and is rotatably connected to the outer track 107 of the annular beam 100. Each wheel assembly 105 can rotate for steering and is driven by an independent drive unit to travel along the inner track 106 or the outer track 107.

[0050] In this embodiment, both the inner track 106 on the inner side of the annular beam 100 and the outer track 107 on the outer side of the annular beam 100 include straight segments and arc segments. The straight segments of the inner track 106 and the outer track 107 are parallel, and the arc segments are concentric and tangent to the straight segments. In order to pass through the arc segments quickly and smoothly, the present invention provides a pair of wheel assemblies 105 on the frame 104 located on the inner side of the annular beam 100 and the frame 104 located on the outer side of the annular beam 100, respectively. Each wheel assembly 105 can rotate about a vertical axis to turn, and each wheel assembly 105 can travel along the inner track 106 or the outer track 107.

[0051] As shown in Figure 3, the annular sliding contact line device further includes a waveguide 600, which is correspondingly mounted on multiple horizontal supports 210 and located on the side of the control sliding contact line group 300 opposite to the vertical support 220. The waveguide 600 forms a ring along the horizontal direction corresponding to the annular beam 100. A waveguide communication interface is provided on the transverse carbon brush support, and the transverse carbon brush support is electrically connected to the waveguide 600 through the waveguide communication interface.

[0052] In this embodiment, the waveguide 600 is used to communicate with multiple trolleys 101 on the annular beam 100. By setting the waveguide 600 into a ring corresponding to the annular beam 100, it can communicate with multiple trolleys 101 simultaneously, thereby improving the working efficiency of the quay crane.

[0053] The present invention also provides a quay bridge with an annular girder 100, including the annular sliding contact line device described in any of the above embodiments.

[0054] The annular sliding contact line device of the present invention reduces space occupation and ease of layout by vertically arranging the power supply sliding contact line group 400 below the unused sliding contact line group. Furthermore, since the power supply sliding contact line group 400 is vertically arranged below the control sliding contact line group 300, the power supply sliding contact line group 400 and the control sliding contact line group 300 can share the force when the trolley 101 rapidly passes through a curve, thereby preventing excessive wear of the sliding contact line device. This ensures that the trolley 101, located at any position on the annular beam 100, can obtain stable control and power supply, improving power supply stability and signal transmission stability.

[0055] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0056] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A ring-shaped sliding contact line device, characterized in that, For a quay crane with a ring-shaped main girder, the ring-shaped sliding conductor rail device includes: Multiple sliding contact line supports are spaced apart below the annular beam and form a ring corresponding to the annular beam. A control slide rail assembly is provided, which is correspondingly arranged on multiple slide rail supports and is annular in shape corresponding to the annular beam; A power supply slide rail assembly is provided, which is correspondingly arranged on multiple sliding contact rail supports and is a ring corresponding to the ring beam. The power supply slide rail assembly is located below the control slide rail assembly. A carbon brush assembly, one end of which is electrically connected to the control slide rail group and the power supply slide rail group respectively, and the other end of which is electrically connected to the trolley on the annular beam.

2. The annular sliding contact line device according to claim 1, characterized in that, Each of the aforementioned conductor rail brackets includes: A horizontal support is provided below the annular beam, and the control slide rail assembly is correspondingly provided on the side of the horizontal support away from the annular beam. A vertical support is provided below the horizontal support and extends vertically, and the power supply slide wire assembly is correspondingly provided on the vertical support. A reinforcing rib, one end of which is connected to the horizontal support and the other end of which is connected to the vertical support.

3. The annular sliding contact line device according to claim 2, characterized in that, The control slide rail assembly includes multiple control slide rails, which are spaced horizontally to form multiple rings corresponding to the annular beam.

4. The annular sliding contact line device according to claim 3, characterized in that, The power supply slide rail assembly includes multiple power supply slide rails arranged sequentially along the vertical direction, and each power supply slide rail is a ring corresponding to the ring beam.

5. The annular sliding contact line device according to claim 4, characterized in that, The carbon brush assembly includes: A transverse carbon brush, wherein the transverse carbon brush is arranged in a horizontal direction and is slidably electrically connected to each of the control slide wires; A longitudinal carbon brush, wherein the longitudinal carbon brush is arranged in a vertical direction and is slidably electrically connected to each of the power supply slide wires; A carbon brush holder, on which the transverse carbon brush and the longitudinal carbon brush are disposed, the carbon brush holder being used to connect to the trolley.

6. The annular sliding contact line device according to claim 5, characterized in that, The carbon brush holder includes: A horizontal carbon brush holder is provided, wherein one end of the horizontal carbon brush holder is connected to the horizontal carbon brush, and the other end of the horizontal carbon brush holder is connected to the trolley. A longitudinal carbon brush holder is arranged vertically below and connected to the transverse carbon brush holder. One end of the longitudinal carbon brush holder is connected to the longitudinal carbon brush, and the other end of the longitudinal carbon brush holder is connected to the trolley.

7. The annular sliding contact line device according to claim 6, characterized in that, The vehicle includes: A frame assembly, the frame assembly including a bottom frame and two frames, the two frames being disposed opposite each other on the bottom frame along the width direction of the annular beam, the annular beam being disposed between the two frames and the bottom frame being located below the annular beam; Two pairs of wheel assemblies, one pair of which is mounted on the frame located inside the annular beam and is rolledly connected to the inner track of the annular beam, and the other pair is mounted on the frame located outside the annular beam and is rolledly connected to the outer track of the annular beam. Each wheel assembly can rotate to steer and is driven by an independent drive unit to travel along the inner track or the outer track.

8. The annular sliding contact line device according to claim 7, characterized in that, Also includes: A waveguide is provided on one of the horizontal supports and located on the side of the control slide group away from the vertical support. The waveguide forms a ring in the horizontal direction corresponding to the annular beam.

9. The annular sliding contact line device according to claim 8, characterized in that, The transverse carbon brush holder is provided with a waveguide communication interface, and the transverse carbon brush holder is slidably electrically connected to the waveguide through the waveguide communication interface.

10. A quay bridge with a ring-shaped main beam, characterized in that, Includes the annular sliding contact line device as described in any one of claims 1-9.

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