Auxiliary structure for complete machine shipment of yard crane

Abstract

A support structure for transporting a yard crane is provided. The yard crane includes a main beam, sea-side portal legs, and land-side portal legs. An auxiliary support assembly is located below the main beam and includes a pair of sea-side temporary columns, a pair of land-side temporary columns, a lower crossbeam, and a balance beam. The track gauge of the sea-side and land-side temporary columns is smaller than that of the sea-side and land-side portal legs. The lower crossbeam connects either the pair of sea-side or land-side temporary columns. The balance beam is located at the bottom of the sea-side and land-side temporary columns and is pin-connected to the lower crossbeam. A lifting device supports the balance beam. An anti-tipping component is mounted on the balance beam and has a gap with the lower crossbeam. This gap is designed so that when the balance beam is lifted, the anti-tipping component abuts against the lower crossbeam, forming an auxiliary support fulcrum. This structure effectively prevents overturning.

Description

Technical Field

[0001] This utility model relates to the field of yard cranes, specifically to the field of yard crane transportation. Background Technology

[0002] Rail-mounted container gantry cranes, also known as rail-mounted cranes, are a type of yard crane. They are installed in ports, including the sea-facing side and the land-facing side. The rail gauge generally refers to the distance between the sea-side and land-side legs. Currently, rail gauges are becoming increasingly larger, with some exceeding 50 meters.

[0003] The installation process of rail-mounted gantry cranes is generally carried out by ship, with the main body of the gantry crane typically transported to the port. After the main body of the gantry crane arrives at the user's dock, relevant commissioning needs to be completed in the shortest possible time before it can be put into operation. However, due to the increasing size of rail-mounted gantry crane tracks and the limited width of ships, it has brought great difficulties to the shipment of the entire gantry crane, making it impossible to ship ultra-large rail-mounted gantry cranes as a whole.

[0004] If the main body of the rail-mounted crane is disassembled and shipped in parts, there are problems such as long on-site assembly time, high cost, and inability to guarantee delivery time.

[0005] Chinese patent CN202765875 discloses an ultra-large gauge crane transport equipment. By setting detachable auxiliary support legs on the crane's load-bearing gantry, the weight of the crane is transferred to the deck of the transport ship. Without changing the structure of the transport ship, it is possible to transport ultra-large gauge cranes with a width much greater than that of the transport ship at sea.

[0006] Chinese patent CN107813906 discloses a device for shipping an ultra-large gauge quay crane. When the width of the transport vessel is limited, a shipping dummy leg is used between the land-side gantry leg and the sea-side gantry leg. The positioning dimension between the shipping dummy leg and the sea-side trolley assembly is smaller than the width of the transport vessel, thus enabling the entire ultra-large gauge quay crane to be loaded onto the transport vessel.

[0007] Chinese patent CN07298389 discloses a method for changing the span of a gantry crane during ship transportation. On a flat site, two gantry cranes are connected by a temporary beam. The gantry crane is lifted to a certain height by jacks at the bottom of the fixed outriggers. Then, the movable outriggers are gradually moved towards the fixed outriggers by the moving outriggers at the bottom of the movable outriggers. After moving the outriggers to the designed position, the span of the gantry crane is changed.

[0008] However, the inventor discovered that in practice, the auxiliary support legs used to shorten the span are prone to tipping over during loading and movement. Utility Model Content

[0009] One objective of this invention is to provide an auxiliary structure for the transport of a rail-mounted crane, which can effectively prevent overturning.

[0010] To achieve the above objectives, an auxiliary structure for the transport of a rail-mounted gantry crane is provided. The rail-mounted gantry crane includes a main beam, sea-side portal legs, and land-side portal legs. This auxiliary structure includes: an auxiliary support assembly located below the main beam of the rail-mounted gantry crane, comprising a pair of sea-side temporary columns, a pair of land-side temporary columns, a lower crossbeam, and a balance beam. The track gauge of the sea-side and land-side temporary columns is smaller than the track gauge of the sea-side and land-side portal legs. The lower crossbeam connects the pair of sea-side or land-side temporary columns. The balance beam is located at the bottom of the sea-side and land-side temporary columns and is pin-connected to the lower crossbeam; a lifting device for supporting the balance beam; and an anti-tipping component disposed on the balance beam with a gap between it and the lower crossbeam. This gap is configured such that when the balance beam is lifted, the anti-tipping component abuts against the lower crossbeam to form an auxiliary support fulcrum.

[0011] In one or more embodiments, the anti-overturning element is disposed on both sides of the pin shaft along a direction perpendicular to the land-sea direction.

[0012] In one or more embodiments, the anti-tipping member is further provided with a pad on top.

[0013] In one or more embodiments, the lifting device includes a jack and a lifting trolley.

[0014] In one or more embodiments, the lifting device further includes a lifting pad beam and / or a lifting block.

[0015] In one or more embodiments, the auxiliary support assembly further includes diagonal braces for connecting the seaside temporary column to the seaside gate leg and / or the landside temporary column to the landside gate leg.

[0016] In one or more embodiments, the auxiliary structure further includes struts for connecting the auxiliary support assembly to the transport vessel deck.

[0017] In one or more embodiments, the auxiliary structure also includes a temporary straight ladder.

[0018] Since the balance beam will be raised, the aforementioned anti-tipping components will abut against the lower crossbeam during the rising process, increasing the contact points and load-bearing points at the bottom of the temporary column and reducing the risk of the entire machine tipping over. Attached Figure Description

[0019] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, wherein:

[0020] Figure 1This is a schematic diagram of a rail-mounted crane structure;

[0021] Figure 2 yes Figure 1 A schematic diagram along direction A;

[0022] Figure 3 yes Figure 2 A schematic diagram of the B direction;

[0023] Figure 4 This is a diagram showing the connection structure between the lower crossbeam and the balance beam;

[0024] Figure 5 yes Figure 4 A schematic diagram of the C-direction;

[0025] Figure 6 This is a partial structural diagram of the auxiliary outrigger;

[0026] Figure 7 yes Figure 6 A schematic diagram in the D direction;

[0027] Figure 8 This is a schematic diagram of the shipping trolley;

[0028] Figure 9 yes Figure 8 A schematic diagram of the E direction;

[0029] Figure 10 This is a schematic diagram of the dismantling of the rail-mounted crane trolley;

[0030] Figure 11 yes Figure 10 A schematic diagram of the F direction;

[0031] Figure 12 This is a schematic diagram of the auxiliary outriggers supporting the field bridge;

[0032] Figure 13 This is a schematic diagram of a transport ship carrying a rail-mounted gantry crane;

[0033] Figure 14 This is a side view of a transport ship carrying a rail-mounted gantry crane. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0035] It should be noted that these and other accompanying drawings are merely examples and are not drawn to scale, and should not be used as a limitation on the scope of protection of this utility model.

[0036] Figure 1 The basic structure of a rail-mounted gantry crane located in a port is shown, including the sea-side gantry 101, the land-side gantry 102, the main beam 103, the hoisting mechanism 104, the trolley traveling mechanism 105, and the gantry traveling mechanism 106. Figure 1 In the embodiment shown, the track gauge between the sea-side gantry 101 and the land-side gantry 102 reaches 63 meters, while Figure 14 The transport ship shown is over 40 meters wide, making transportation difficult.

[0037] To shorten the track gauge, the auxiliary structure for transporting the rail-mounted gantry crane includes an auxiliary support assembly 2, a lifting device 1, and an anti-tipping component 7.

[0038] Specifically, the auxiliary support assembly 2 is located below the main beam 103 of the rail-mounted crane and includes a pair of temporary sea-side columns 21, a pair of temporary land-side columns 22, a lower crossbeam 5, diagonal braces 24, and a balance beam 6. Figure 1 In the diagram, the left-right direction is the sea-land side direction X, the up-down direction is the height direction Z, and the direction perpendicular to the paper is the sea-land side direction Y. A pair of temporary sea-side pillars 21 are distributed along the direction perpendicular to the sea-land side Y, and a pair of temporary land-side pillars 22 are distributed along the direction perpendicular to the sea-land side Y.

[0039] The track gauge of the seaside temporary column 21 and the landside temporary column 22 in the sea-land direction X is less than the track gauge of the seaside portal leg 101 and the landside portal leg 102.

[0040] The lower crossbeam 5 is used to connect a pair of seaside temporary columns 21 or a pair of landside temporary columns 22, such as Figure 2 The side view shown.

[0041] The diagonal brace 24 is used to connect the seaside temporary column 21 to the seaside gate leg 101, and the landside temporary column 22 to the landside gate leg 102, in order to improve the connection strength.

[0042] exist Figure 2 In the schematic diagram shown, the auxiliary support components also include steel cables 3 and boarding ladders 4. The steel cables 3 connect a pair of landside temporary columns 22, which provide installation support for the boarding ladders 4.

[0043] The balance beam 6 is located at the bottom of the seaside temporary column 21 and the landside temporary column 22, and is connected to the lower crossbeam 5 by a pin 23.

[0044] Lifting device 1 Figure 6 As shown, this is used to support the balance beam 6. Figure 6In the illustrated embodiment, the lifting device 1 includes a jack 10, a jack support 11, a lifting pad beam 8, and lifting blocks 9. During transport, the lifting device 1 supports the balance beam 6, thereby raising the yard bridge to a certain height for installation. Figure 8 , 10 Components such as the lifting trolley 12 shown in Figure 11.

[0045] Anti-overturning component 7 is mounted on the balance beam 6 and has a gap G between it and the lower crossbeam 5, such as... Figure 4 As shown. The gap G is set so that the anti-tipping component abuts against the lower crossbeam when the lifting device lifts the balance beam, as shown. Figure 7 As shown in area H, an auxiliary support fulcrum is formed. Since the temporary balance beam 6 is connected in the middle by pin 23 and can rotate, during jacking, the anti-tipping component 7 abuts against the lower crossbeam 5, thus adding a fulcrum. Figure 7 In the illustrated embodiment, this is equivalent to all three support points being under load, thus effectively preventing overturning. Without the anti-overturning component 7, if the jacks are not level during the lifting process, the pins may sway from side to side, causing the entire rail-mounted crane to tip over.

[0046] After the lifting trolley 12 is fixedly connected to the balance beam 6, the anti-tipping component 7 remains in contact with the lower crossbeam 5, such as... Figure 10 and Figure 11 As shown, the entire rail-mounted crane is moved onto the ship's hull using the lifting trolley 12.

[0047] Optionally, a pad is also provided above the anti-tipping component 7 baffle to support it, so that the balance beam 5 will not rotate during jacking, effectively reducing the probability of the whole machine overturning.

[0048] exist Figure 7 In the embodiment shown in Figure 8, a pair of anti-overturning components 7 are disposed on both sides of the pin 32 along the direction Y perpendicular to the sea-land direction. It is understood that the anti-overturning components 7 can also be disposed in other directions of the pin 32, as long as they can serve to abut against the lower crossbeam 5 to form an auxiliary support fulcrum when the balance beam 6 is lifted.

[0049] The following section describes the specific installation process, which includes the installation of auxiliary gate legs, the lifting stage, the installation of the trolley, and the shipping stage.

[0050] Taking temporary sea-side pillars as an example, during the installation of auxiliary gate legs, such as Figure 1 As shown, first install the temporary sea-side column 21, diagonal brace 24, connecting rod 25, and other connecting components at a certain distance between the rail-mounted crane and the sea-side portal leg 101. Then, as... Figure 2 As shown, a lower crossbeam 5 is installed at the bottom of the temporary sea-side column 21, and temporary balance beams 6 are symmetrically installed at a certain distance from the centerline of the lower crossbeam 5. Steel cables 3 are installed to ensure the stability of the door frame and meet maritime transport requirements. Subsequently... Figure 4 As shown, anti-tipping components 7 are welded onto the temporary balancing beam 6. The same applies to the land side.

[0051] During the peak phase, such as Figure 6 As shown, jack supports 11 and jacks 10, as well as lifting blocks 9 and lifting beams 8, are placed on track S. Before lifting, wooden blocks are placed on the anti-overturning components 7. Jacks 10 are used to lift the small balance beam 6, and lifting blocks 9 are added alternately until the trolley running mechanism 106 is removed from the track surface.

[0052] During the trolley installation stage, such as Figure 8 , 10 As shown, the shipping trolley 12 is installed under the balance beam 6, and then the trolley running mechanism 106 is removed.

[0053] Given the problem of personnel being unable to board the plane at this time, a temporary vertical ladder 4 was installed on the temporary support column 21 on the sea side to solve the difficulty of personnel boarding the plane.

[0054] like Figure 12 As shown, after the double auxiliary gantry legs and the shipping trolley are installed on both the sea and land sides of the rail-mounted gantry crane, the rail gauge of the rail-mounted gantry crane changes from 63m between the sea-side gantry legs and the land-side gantry legs to 35m between the sea-side temporary columns and the land-side temporary columns. In this way, the rail-mounted gantry crane can be horizontally loaded and shipped, which can meet the shipping needs of most of the self-owned transport ships.

[0055] During the shipping stage, such as Figure 13 , 14 As shown, after the auxiliary gantry legs are installed on the ultra-large gauge rail crane, the support rod 14 is used for welding and fixing, connecting the auxiliary support components to the transport ship deck, and completing the shipment of the whole machine.

[0056] The aforementioned auxiliary structure for transporting the entire rail-mounted crane is based on the process of the balance beam being lifted. Anti-tipping components are used to abut against the lower crossbeam during the lifting process, increasing the contact points and load-bearing points at the bottom of the temporary columns and reducing the risk of the entire machine tipping over.

[0057] Based on the description of the above-mentioned device, a method for preventing the overturning of a rail-mounted crane during transport can also be understood. This method involves setting a protrusion on the surface of the balance beam, namely the aforementioned anti-overturning component 7. When the balance beam is raised, the protrusion abuts against the temporary column to serve as an auxiliary support fulcrum, increasing the contact points and load-bearing points at the bottom of the temporary column.

[0058] Alternatively, the protrusion can be positioned around the pin in multiple locations.

[0059] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0060] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0061] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible variations and modifications without departing from the spirit and scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. An auxiliary structure for shipping a yard crane, the yard crane comprising a main beam, sea-side portal legs, and land-side portal legs, characterized in that: The auxiliary structure includes: The auxiliary support assembly, located below the main beam of the yard bridge, includes a pair of sea-side temporary columns, a pair of land-side temporary columns, a lower crossbeam, and a balance beam. The track gauge of the sea-side temporary columns and the land-side temporary columns is smaller than the track gauge of the sea-side portal legs and the land-side portal legs. The lower crossbeam is used to connect the pair of sea-side temporary columns or the pair of land-side temporary columns. The balance beam is located at the bottom of the sea-side temporary columns and the land-side temporary columns and is connected to the lower crossbeam by a pin. Lifting device for supporting the balance beam; and An anti-tipping component is disposed on the balance beam and has a gap with the lower crossbeam. The gap is configured such that when the balance beam is raised, the anti-tipping component abuts against the lower crossbeam to form an auxiliary support fulcrum.

2. The auxiliary structure for shipping the entire yard crane as described in claim 1, characterized in that, The anti-overturning components are located on both sides of the pin shaft perpendicular to the sea-land direction.

3. The auxiliary structure for shipping the entire yard crane as described in claim 1, characterized in that, The anti-tipping component is also equipped with a pad on top.

4. The auxiliary structure for shipping the entire yard crane as described in claim 1, characterized in that, The lifting device includes jacks and a lifting trolley.

5. The auxiliary structure for shipping the entire yard crane as described in claim 4, characterized in that, The lifting device also includes a lifting pad beam and / or a lifting block.

6. The auxiliary structure for shipping the entire yard crane as described in claim 1, characterized in that, The auxiliary support assembly also includes diagonal braces for connecting the seaside temporary column to the seaside gate leg and / or the landside temporary column to the landside gate leg.

7. The auxiliary structure for shipping the entire yard crane as described in claim 1, characterized in that, The auxiliary structure also includes struts for connecting the auxiliary support assembly to the transport vessel deck.

8. The auxiliary structure for shipping the entire yard crane as described in claim 1, characterized in that, The auxiliary structure also includes a temporary vertical ladder.

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