Assembling device, segmented box type girder and rail-mounted gantry crane

Abstract

The invention relates to the technical field of rail-mounted gantry crane installation, in particular to an assembly device, a segmented box-type girder and a rail-mounted gantry crane, the assembly device is used for connecting two adjacent segments of the segmented box-type girder of the rail-mounted gantry crane, and the assembly device comprises a box body assembly device and a box body web plate assembly, the box body panel clamping plate assembly is used for being connected with a box body panel at the segmented joint of the box type girder, and the box body web clamping plate assembly is used for being connected with a box body web at the segmented joint of the box type girder. The bearing rail beam assembling device comprises a bearing rail beam panel clamping plate assembly and a bearing rail beam web clamping plate assembly, the bearing rail beam panel clamping plate assembly is used for being connected with a bearing rail beam panel at the segmented joint of the bearing rail beam, and the bearing rail beam web clamping plate assembly is used for being connected with a bearing rail beam web at the segmented joint of the bearing rail beam. According to the invention, the assembly difficulty and cost of the segmented box girder of the rail-mounted gantry crane can be reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of gantry crane installation, and particularly relates to an assembly device, a segmented box girder, and a gantry crane. Background Art

[0002] A gantry crane is a heavy lifting device dedicated to places such as ports, railway transfer yards, and large container storage and transportation yards, and its full name is an overhead gantry crane or an overhead container gantry crane. The girder of the gantry crane is large in size and heavy in mass, and it is difficult to transport it as a whole due to restrictions on road height, weight, and the carrying capacity of transportation tools.

[0003] The conventional approach to the above problems is to ship the girder in segments to the site and then weld the segmented girders together. However, this approach has many drawbacks. For example, the on-site welding workload is large, the difficulty of butt welding of the girders is high, and the labor cost is high; there is a lack of welding tooling and process auxiliary equipment at the assembly site to ensure quality, and it needs to be shipped by the manufacturer, resulting in high costs; there are many weld inspection procedures after welding, and since there is no pre-assembly in the manufacturing factory, it is difficult for the user to splice on-site. Therefore, assembling the segmented girders by welding has problems such as high cost, complex construction, and high difficulty. Summary of the Invention

[0004] The purpose of this application is to propose an assembly device, a segmented box girder, and a gantry crane that can overcome the problems of high construction difficulty and high cost in the assembly of the segmented box girder.

[0005] To solve at least one of the above technical problems, the technical solution of this application is as follows:

[0006] According to the first aspect of this application, an assembly device is provided for connecting adjacent segments of a segmented box girder of a gantry crane, including:

[0007] A box body assembly device, including a box body panel clamping plate assembly and a box body web clamping plate assembly. The box body panel clamping plate assembly is used to connect the box body panel at the segmented node of the box girder, and the box body web clamping plate assembly is used to connect the box body web at the segmented node of the box girder;

[0008] A track beam assembly device, including a track beam panel clamping plate assembly and a track beam web clamping plate assembly. The track beam panel clamping plate assembly is used to connect the track beam panel at the segmented node of the track beam, and the track beam web clamping plate assembly is used to connect the track beam web at the segmented node of the track beam.

[0009] In a possible implementation of the above first aspect, it further includes:

[0010] A trolley track assembly device, including a rigid backing plate and a fixing component. The rigid backing plate is arranged below the segmented node of the trolley track and is fixed to the track beam with the fixing component;

[0011] Among them, flexible pads and rigid pads are alternately arranged in sequence below the trolley track, and the rigid pads are butt-jointed with the flexible pads at both ends thereof through concave-convex structures;

[0012] Grooves are respectively arranged at both ends of the rigid pad, and protruding portions matching the grooves are arranged on the flexible pad;

[0013] Shear-resistant blocks are respectively arranged on both sides of one end of the flexible pad close to the rigid pad, each shear-resistant block is installed on the bearing rail beam, and notches matching each shear-resistant block are correspondingly arranged on the trolley track and the flexible pad.

[0014] In a possible implementation of the above first aspect, the fixing assembly includes:

[0015] A rigid pressing plate for pressing the trolley track against the bearing rail beam and located at the segmented part of the trolley track to fix the rigid pad;

[0016] A positioning member is arranged on the bearing rail beam, and a positioning hole matching the positioning member is arranged on the rigid pad;

[0017] Among them, the positioning member is a sleeve.

[0018] In a possible implementation of the above first aspect, the box panel clamping plate assembly includes:

[0019] A pair of first box panel clamping plates for respectively corresponding to being arranged on the inner and outer surfaces of the upper panel of the box panel;

[0020] A pair of second box panel clamping plates for respectively corresponding to being arranged on the inner and outer surfaces of the lower panel of the box panel;

[0021] A plurality of first fasteners, and a pair of first box panel clamping plates and a pair of second box panel clamping plates are respectively connected through the plurality of first fasteners;

[0022] Among them, the first fastener is a high-strength bolt.

[0023] In a possible implementation of the above first aspect, the box web clamping plate assembly includes:

[0024] A pair of first box web clamping plates for respectively corresponding to being arranged on the inner and outer surfaces of the front web of the box web;

[0025] A pair of second box web clamping plates for respectively corresponding to being arranged on the inner and outer surfaces of the rear web of the box web;

[0026] A plurality of second fasteners, and a pair of first box web clamping plates and a pair of second box web clamping plates are respectively connected through the plurality of second fasteners.

[0027] In a possible implementation of the first aspect described above, the panel clamping plate assembly of the track-bearing beam includes two pairs of panel clamping plates of the track-bearing beam symmetrically arranged on both sides of the trolley track. Each pair of panel clamping plates of the track-bearing beam is symmetrically located inside and outside the panel of the track-bearing beam and is connected by a plurality of third fasteners.

[0028] In a possible implementation of the first aspect described above, the web clamping plate assembly of the track-bearing beam includes a pair of web clamping plates of the track-bearing beam symmetrically arranged inside and outside the web of the track-bearing beam. The pair of web clamping plates of the track-bearing beam is connected by a plurality of fourth fasteners.

[0029] According to the second aspect of the present application, there is provided a segmented box girder for a gantry crane. The segmented part of the box girder is connected by the assembly device according to any one of the above. The segmented part of the box girder is a non-airtight box area. Airtight plates are respectively arranged at both ends of the non-airtight box area for sealing so that the non-airtight box area is located between two adjacent airtight box areas.

[0030] In a possible implementation of the second aspect described above, a manhole cover that can be opened is provided at the top of the non-airtight box area, and a ladder corresponding to the manhole cover is arranged inside the non-airtight box area;

[0031] Leakage holes are opened at the bottom of the non-airtight box area, and the inner surface of the non-airtight box area is coated with waterproof paint.

[0032] According to the third aspect of the present application, there is provided a gantry crane including the above-mentioned segmented box girder.

[0033] At least one of the above technical solutions of the present application has the following beneficial effects:

[0034] The present invention provides an assembly device for connecting adjacent two segments of a segmented box girder of a gantry crane, including a box body assembly device and a track-bearing beam assembly device. The box body assembly device is used to connect the box body at the segmented node of the box girder and includes a box body panel clamping plate assembly and a box body web clamping plate assembly; the track-bearing beam assembly device is used to connect the track-bearing beam at the segmented node of the track-bearing beam and includes a track-bearing beam panel clamping plate assembly and a track-bearing beam web clamping plate assembly. The present invention can reduce the assembly difficulty and cost of the segmented box girder of the gantry crane and improve the assembly efficiency.

[0035] In addition, in the technical solution of the present application, unless otherwise specifically stated, the present technical solution can be implemented by adopting conventional means in the art. Description of the Drawings

[0036] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 Front elevation view of the girder segment joint of an embodiment of the present application;

[0038] Figure 2 For an embodiment of the present application Figure 1 Side sectional view of the box girder segment joint from the A - A perspective in

[0039] Figure 3 For an embodiment of the present application Figure 1 Top view of the box girder segment joint from the C - perspective in

[0040] Figure 4 Overall structure diagram of the segmented box - type girder of an embodiment of the present application;

[0041] Figure 5 For an embodiment of the present application Figure 1 Side sectional view of the box girder segment joint from the F - F perspective in

[0042] Figure 6 For an embodiment of the present application Figure 1 Bottom view of the box girder segment joint from the B - perspective in

[0043] Figure 7 Structure diagram of the assembly device at the segmented location of the trolley track of an embodiment of the present application;

[0044] Figure 8 Partial view of the butt - joint concave - convex structure of the rigid pad and the flexible pad of an embodiment of the present application;

[0045] Explanation of the reference numerals in the drawings:

[0046] Box web splint assembly 1; First box web splint 101; Second box web splint 102; Box panel splint assembly 2; First box panel splint 201; Second box panel splint 202; Load - bearing beam panel splint assembly 3; Load - bearing beam web splint assembly 4; Leakage hole 5; Manhole cover 6; Ladder 7; Rigid pad 8; Rigid pressing plate 9; Sleeve 10; Trolley track 11; Flexible pad 12; Shear block 13; Flexible pressing plate 14; Non - airtight box area 15; Airtight box area 16; Sealing plate 17. Specific embodiments

[0047] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all of the embodiments, and are only used to explain the present application, not to limit the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

[0048] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "both ends", "both sides", "bottom", "top", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the element to be referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "superior", "inferior", "main", "secondary", etc. are only used for descriptive purposes and can be simply used to more clearly distinguish different components, rather than indicating or implying relative importance.

[0049] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0050] Referring Figure 1 As shown, an assembly device is proposed in an embodiment of the present application for connecting adjacent two segments of a segmented box girder of an overhead crane. The assembly device changes the traditional way of welding and assembling the segmented box girder to using double-sided clamping plates and bolts to connect the girder segments. The segmented box girder includes a girder box body, a bearing rail beam located at the top of the girder box body near the edge of the box body, and a trolley track placed on the bearing rail beam. The girder box body can be divided into two segments or multiple segments. The assembly device includes a box body assembly device and a bearing rail beam assembly device. The box body assembly device is used to connect the girder box body at the segmented node of the box girder. The bearing rail beam assembly device is used to connect the bearing rail beam at the segmented node of the box girder. For example, the girder box body can be divided into multiple segments, and adjacent two segments of the box girder are respectively connected through this assembly device.

[0051] Figure 1It is the front view of the sectional joint of the sectional box girder. The box body assembly device includes a box body web clamping plate assembly 1 and a box body panel clamping plate assembly 2. The box body web clamping plate assembly 1 is used to connect the box body web at the sectional joint of the box girder. The box body panel clamping plate assembly 2 is used to connect the box body panel at the sectional joint of the box girder.

[0052] Figure 2 It is Figure 1 the side sectional view of the box girder sectional joint from the A-A perspective in Figure 2 shown. The box body web clamping plate assembly 1 includes a pair of first box body web clamping plates 101, a pair of second box body web clamping plates 102 and a plurality of fasteners. The first box body web clamping plates 101 are correspondingly arranged on the inner and outer surfaces of the front web of the box body web and are fixed with a plurality of fasteners; the second box body web clamping plates 102 are correspondingly arranged on the inner and outer surfaces of the rear web of the box body web and are fixed with a plurality of fasteners. The box body panel clamping plate assembly 2 includes a pair of first box body panel clamping plates 201, a pair of second box body panel clamping plates 202 and a plurality of fasteners. The first box body panel clamping plates 201 are correspondingly arranged on the inner and outer surfaces of the upper panel of the box body panel and are fixed with a plurality of fasteners; the second box body panel clamping plates 202 are correspondingly arranged on the inner and outer surfaces of the lower web of the box body panel and are fixed with a plurality of first fasteners. Among them, the fasteners are high-strength bolts.

[0053] Furthermore, when installing the box body assembly device, the connection clearance tolerance at the girder section should be controlled, generally not exceeding 3 mm. M24 high-strength bolts can be used as fasteners for the box body panel clamping plates, and M20 high-strength bolts can be used as fasteners for the box body web clamping plates. The bolts should be tightened symmetrically and evenly.

[0054] As Figure 2 shown, the track-bearing beam assembly device includes a track-bearing beam panel clamping plate assembly 3 and a track-bearing beam web clamping plate assembly 4. Figure 3 It is Figure 1 the top view of the box girder sectional joint from the C perspective in Figure 3 shown. Each pair of track-bearing beam panel clamping plate assemblies 3 includes two track-bearing beam panel clamping plates symmetrically arranged on both sides of the trolley track and a plurality of fasteners. The track-bearing beam panel clamping plates connect the track-bearing beam panels at the sectional joint of the track-bearing beam and are fixed with fasteners. The track-bearing beam web clamping plate assembly 4 includes a pair of track-bearing beam web clamping plates and a plurality of fasteners. This pair of track-bearing beam web clamping plates are fixed with a plurality of fasteners and are symmetrically arranged on the inner and outer sides of the track-bearing beam web. Among them, the fasteners are high-strength bolts.

[0055] The above-mentioned assembly device proposed in this embodiment uses a method of combining splints and high-strength bolts at the segmented joints of the girder to connect the segmented box body and the catenary girder respectively, making the installation and disassembly of the segmented box girder convenient, and also facilitating the maintenance and replacement of the connecting parts. Compared with the welding connection method, using this assembly device results in lower material and labor costs.

[0056] The overall structure of the segmented box girder using the above-mentioned assembly device is as Figure 4 shown. At the segmented joints of the box girder, they are connected through the above-mentioned assembly device. A section of the area around the segmented joints is the non-airtight box body area 15. An openable manhole cover 6 is provided at the top of the non-airtight box body area 15, and a ladder 7 corresponding to the manhole cover 6 is arranged inside the non-airtight box body area 15 to facilitate workers to enter the non-airtight box body area 15 for construction operations.

[0057] Since this assembly device uses bolt connection and the box body at the segmented part of the girder adopts a non-airtight box body design, both ends of the non-airtight box body area 15 are sealed by sealing plates 17 respectively, so that the non-airtight box body area 15 is located between two adjacent airtight box body areas 16. The position and structure of the sealing plate 17 are as Figure 5 shown. Figure 5 It is Figure 1 the side sectional view from the F-F direction perspective in Figure 6 It is Figure 1 the bottom view from the B perspective at the segmented joint of the box girder in Figure 6 shown. A water leakage hole 5 is opened at the bottom of the non-airtight box body area 15 to prevent water accumulation inside the non-airtight box body area 15, and the inner surface of the non-airtight box body area 15 is coated with waterproof paint to slow down the corrosion of the non-airtight box body area 15 and extend the service life of the box body.

[0058] In some embodiments, the above-mentioned assembly device further includes a trolley track assembly device. The trolley track assembly device specifically includes a rigid cushion plate 8 and a fixing component, and the fixing component may include a rigid pressing plate 9.

[0059] As Figure 7 shown, the trolley track 11 is cut obliquely at the segmented part. Rigid cushion plates 8 and flexible cushion plates 12 are alternately arranged below the trolley track 11 in sequence. The rigid cushion plate 8 is arranged below the segmented joint of the trolley track 11 and is butted with the flexible cushion plates 12 at both ends thereof through a concave-convex structure. Grooves are respectively arranged at both ends of the rigid cushion plate 8, and convex parts matching the grooves are arranged on the flexible cushion plates 12. The concave-convex butting method facilitates the accurate butting of the rigid cushion plate 8 and the flexible cushion plate 12 during installation and increases the contact area between the two plates. Compared with the flat butting, it can bear greater external loads and improve the stability and strength of the connection part. Figure 8 It is a partial view of the concave-convex structure of the butt joint of the rigid cushion plate 8 and the flexible cushion plate 12.

[0060] Furthermore, the fixing component may further include a sleeve 10, which can serve as a positioning member. The rigid backing plate 8 is provided with positioning holes that cooperate with the positioning member. The sleeve 10 fixes the rigid backing plate 8 on the catenary beam through the positioning holes, and the lower end of the sleeve 10 is welded to the catenary beam. The rigid pressing plate is used in combination with the rigid backing plate. The rigid pressing plate 9 presses the trolley track 11 against the catenary beam and is located at the segmented part of the trolley track 11 to fix the rigid backing plate 8. The bottom of the rigid pressing plate 9 is welded to the track beam. The position of the rigid pressing plate 9 close to the side of the trolley track abuts against the edge of the trolley track, and presses the trolley track and the rigid backing plate 8 on the upper surface of the trolley track 11. The rigid pressing plate 9 has high positioning accuracy and strong load-bearing capacity. Relying on its own rigidity and the fastening force of the bolts, it can strictly limit the displacement of the trolley track 11 in all directions, keeping it in a fixed position and posture. Since there is a height difference at the segmented part of the trolley track 11, if a flexible backing plate 12 is used at the segmented part, the deformation of the flexible backing plate 12 is relatively large, and the trolley will jolt when it reaches the segmented part. However, the deformation of the rigid backing plate is small, and it can stably support the two segmented tracks.

[0061] Furthermore, shear-resistant blocks 13 are respectively arranged on both sides of one end of the flexible backing plate 12 close to the rigid backing plate 8. Corresponding notches are provided on the trolley track 11 and the flexible backing plate 12 for each shear-resistant block 13 to cooperate with. Each shear-resistant block 13 is installed on the catenary beam through the corresponding notch. The shear-resistant blocks 13 can prevent the track from undergoing longitudinal displacement. In addition, a matching flexible pressing plate 14 is usually arranged on the flexible backing plate 12. The flexible pressing plate 14 abuts against the side edge of the trolley track 11 and presses the trolley track and the flexible backing plate 12 from the upper surface of the trolley track 11. The flexible pressing plate 14 presses the trolley track 11 in the vertical direction with an elastic force through elastic components such as rubber strips, allowing the trolley track 11 to have a certain up-and-down displacement and being able to adapt to the deformation of the track caused by factors such as thermal expansion and contraction and vehicle loads.

[0062] The rigid backing plate 8 and the flexible backing plate 12 can compensate for the gap between the trolley track 11 and the supporting plane of the catenary beam, reducing the vibration and wheel pressure of the wheels impacting the track. Since the rigid backing plate 8 has high stiffness, small deformation and high stability, it can better resist external loads and vibrations compared with the flexible backing plate 12. Therefore, it is arranged below the segmented node of the trolley track.

[0063] According to an embodiment of the present application, there is also provided an overhead crane, including a segmented box girder connected by the above assembly device. The other mechanisms of the overhead crane can adopt the corresponding mechanisms in the prior art, which will not be elaborated here.

[0064] Based on the above embodiments of the present application, without explicit negation or conflict, the technical features of one embodiment can be beneficially combined with one or more other embodiments.

[0065] The above are only some embodiments of the present application, which are only used to illustrate the technical solutions of the present application rather than limit them. It should be understood that for those of ordinary skill in the art, without departing from the inventive concept of the present application, improvements or replacements can be made according to the above description, and all such improvements and replacements should fall within the protection scope of the present application. In this case, all details can be replaced by equivalent elements, and the materials, shapes and dimensions can also be arbitrary.

Claims

1. An assembly device, characterized in that, For connecting adjacent two segments of a segmented box girder of an overhead crane, including: A box body assembly device, including a box body panel clamping plate assembly and a box body web clamping plate assembly. The box body panel clamping plate assembly is used to connect the box body panel at the segmented node of the box girder, and the box body web clamping plate assembly is used to connect the box body web at the segmented node of the box girder; A bearing rail beam assembly device, including a bearing rail beam panel clamping plate assembly and a bearing rail beam web clamping plate assembly. The bearing rail beam panel clamping plate assembly is used to connect the bearing rail beam panel at the segmented node of the bearing rail beam, and the bearing rail beam web clamping plate assembly is used to connect the bearing rail beam web at the segmented node of the bearing rail beam.

2. The assembly device according to claim 1, characterized in that, It further includes: A trolley track assembly device, including a rigid cushion plate and a fixing component. The rigid cushion plate is arranged below the segmented node of the trolley track and is fixed on the bearing rail beam by the fixing component; Wherein, flexible cushion plates and the rigid cushion plates are alternately arranged in sequence below the trolley track, and the rigid cushion plates are respectively butted with the flexible cushion plates at both ends thereof through a concave-convex structure; Both ends of the rigid cushion plate are respectively provided with grooves, and the flexible cushion plate is provided with protruding parts matched with the grooves; Shear-resistant blocks are respectively arranged on both sides of one end of the flexible cushion plate close to the rigid cushion plate. Each shear-resistant block is installed on the bearing rail beam, and notches matched with each shear-resistant block are correspondingly arranged on the trolley track and the flexible cushion plate.

3. The assembly device according to claim 2, characterized in that, The fixing component includes: A rigid pressing plate, which is used to press the trolley track on the bearing rail beam and is located at the segmented part of the trolley track to fix the rigid cushion plate; A positioning member, which is arranged on the bearing rail beam, and a positioning hole matched with the positioning member is arranged on the rigid cushion plate; Wherein, the positioning member is a sleeve.

4. The assembling device according to claim 1, characterized in that, The box body panel clamping plate assembly includes: A pair of first box body panel clamping plates, which are respectively arranged corresponding to the inner and outer surfaces of the upper panel of the box body panel; A pair of second box body panel clamping plates, which are respectively arranged corresponding to the inner and outer surfaces of the lower panel of the box body panel; A plurality of first fasteners, and a pair of the first box body panel clamping plates and a pair of the second box body panel clamping plates are respectively connected by the plurality of first fasteners; Wherein, the first fastener is a high-strength bolt.

5. The assembling device according to claim 1, wherein The box body web clamping plate assembly includes: A pair of first box body web clamping plates, which are respectively arranged corresponding to the inner and outer surfaces of the front web of the box body web; A pair of second box body web clamping plates, which are respectively arranged corresponding to the inner and outer surfaces of the rear web of the box body web; A plurality of second fasteners, and a pair of the first box body web clamping plates and a pair of the second box body web clamping plates are respectively connected by the plurality of second fasteners.

6. The assembly device according to claim 1, characterized in that The bearing rail beam panel clamping plate assembly includes two pairs of bearing rail beam panel clamping plates symmetrically arranged on both sides of the trolley track. Each pair of the bearing rail beam panel clamping plates is symmetrically located on the inner and outer sides of the bearing rail beam panel and is connected by a plurality of third fasteners.

7. The assembly device according to claim 1, characterized in that, The bearing rail beam web clamping plate assembly includes a pair of bearing rail beam web clamping plates symmetrically arranged on the inner and outer sides of the bearing rail beam web. The pair of bearing rail beam web clamping plates is connected by a plurality of fourth fasteners.

8. A segmented box girder, characterized in that, For an overhead crane, the segmented part of the box girder is connected by the assembly device according to any one of claims 1 to 7. The segmented part of the box girder is a non-airtight box area, and airtight plates are respectively arranged at both ends of the non-airtight box area for sealing so that the non-airtight box area is located between two adjacent airtight box areas.

9. The segmented box girder according to claim 8, wherein, A manhole cover that can be opened is provided at the top of the non-airtight box area, and a ladder corresponding to the manhole cover is arranged in the non-airtight box area; Leakage holes are opened at the bottom of the non-airtight box area, and the inner surface of the non-airtight box area is coated with waterproof paint.

10. An overhead crane, characterized in that, It includes the segmented box girder according to claim 8 or 9.

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