Hinge structure for mounting gantry crane

Abstract

The utility model relates to a hinge structure for mounting a gantry crane, belongs to the technical field of gantry crane mounting, and solves the technical problem that the existing hinge structure for hinging a main beam and a supporting leg of the gantry crane cannot be conveniently disassembled. The hinge structure comprises two lug plates, each lug plate is provided with two through holes, the two lug plates are arranged in parallel, and the two through holes in the two lug plates are in one-to-one correspondence to form two hole groups; the two pin shafts respectively and rotationally penetrate through the two hole groups, one pin shaft is connected with a lifting lug on a main beam of the gantry crane, the other pin shaft is connected with a lifting lug on a supporting leg of the gantry crane, and the lifting lug is positioned between the two lug plates; a blocking piece is arranged at one end of the pin shaft, a clamping plate is connected to the other end of the pin shaft through a bolt, and the two lug plates are located between the blocking piece and the clamping plate. Through the structure, the hinge structure not only can hinge the main beam lifting lug and the supporting leg lifting lug, but also can conveniently take down the bolt, so that the clamping plate is convenient to disassemble and assemble, and the hinge structure is more convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of gantry crane installation, and particularly relates to a hinge structure used for gantry crane installation. Background Art

[0002] Large gantry cranes have the characteristics of high operating efficiency, large operating range, wide adaptability and strong versatility. They are widely used in large shipyards, container cargo loading and unloading at docks, factories and other places with large spaces. At present, large-tonnage gantry cranes are mostly installed by hydraulic synchronous lifting method, that is, the hydraulic lifting device is connected to the main beam of the gantry crane, and then the main beam is lifted upward by operating the hydraulic lifting device. After the main beam is lifted to a certain height, the rigid legs and flexible legs (collectively referred to as outriggers) are respectively hinged to the main beam, so that the outriggers are lifted with the main beam, and finally the main beam is lifted to the elevation, and the outriggers are also pulled vertically to complete the installation of the gantry crane as a whole.

[0003] The hinge connection between the legs and the main beam usually uses a detachable hinge structure. Specifically, the lifting lugs on the legs are hinged to the lifting lugs on the main beam through the hinge structure. Such hinge structures in the prior art include two lug plates and a pin shaft rotatably inserted between the two lug plates. A baffle is provided at one end of the pin shaft, and a lock hole is provided at the other end. During hoisting, a spring latch is inserted into the lock hole to lock the legs until the legs are hoisted vertically, and then the spring latch is pulled out, and then the hinge structure is removed, and finally the legs are connected to the main beam by welding or other methods.

[0004] However, due to the heavy weight of the legs, the hinge structure is subjected to great force. When the legs are lifted vertically, the spring pins in the hinge structure are difficult to pull out. Each time the spring pins are removed, a lot of time is required, so that the hinge structure cannot be easily disassembled, which ultimately delays the installation progress of the gantry crane. Utility Model Content

[0005] The utility model provides a hinge structure for installing a gantry crane, which is used to solve the technical problem that the hinge structure currently used for hingedly connecting the main beam and the supporting legs of the gantry crane cannot be conveniently disassembled.

[0006] The utility model is realized by the following technical scheme: a hinge structure for installing a gantry crane, comprising:

[0007] An ear plate is provided with two through holes, the number of the ear plates is two, the two ear plates are arranged in parallel, and the two through holes on the two ear plates correspond to each other to form two groups of holes;

[0008] Two pins are rotatably mounted on the two groups of holes, one of which is used to connect with a lifting lug on the main beam of the gantry crane, and the other is used to connect with a lifting lug on the supporting leg of the gantry crane, and the lifting lug is located between the two ear plates;

[0009] A baffle is fixedly arranged at one end of the pin shaft, and a clamping plate is detachably connected to the other end of the pin shaft through bolts, and the two ear plates are both located between the baffle and the clamping plate.

[0010] Furthermore, in order to better implement the present invention, the card board includes:

[0011] The arc segment is provided with a through hole, and a screw hole is provided on the circumferential outer wall of the pin shaft, and the screw hole is located near the other end of the pin shaft, and the bolt passes through the through hole and is screwed with the screw hole, so that the arc segment can be detachably connected to the pin shaft;

[0012] The number of the arc segments is multiple, and the multiple arc segments are evenly distributed around the pin shaft.

[0013] Furthermore, in order to better realize the utility model, the number of the arc segments is three, and the three arc segments are spliced ​​to form a set of rings arranged on the pin shaft, and each arc segment is connected to the pin shaft through two bolts.

[0014] Furthermore, in order to better implement the present utility model, the arc segment includes:

[0015] An arc-shaped inserting plate, wherein an annular groove coaxial with the pin shaft is provided on the circumferential outer side wall of the pin shaft, and the arc-shaped inserting plate is clamped in the annular groove;

[0016] The arc-shaped covering plate is fixedly arranged on one side plate surface of the arc-shaped inserting plate, the arc-shaped covering plate covers the circumferential outer side wall of the pin shaft, and the through hole is opened on the arc-shaped covering plate.

[0017] Furthermore, in order to better implement the present utility model, the through hole is a waist-shaped hole, and the length direction of the waist-shaped hole is in the same direction as the length direction of the ear plate.

[0018] Furthermore, in order to better implement the present invention, a lifting ring is installed at one end or both ends of the pin shaft.

[0019] Furthermore, in order to better implement the utility model, the hanging ring includes:

[0020] Ring body;

[0021] A screw rod is fixed on the outer ring wall of the ring body;

[0022] Threaded holes are provided at both ends of the pin shaft, and the threaded holes are used for threading the screw rod.

[0023] Furthermore, in order to better implement the utility model, it also includes a gasket, which is sleeved on the pin shaft and padded between the lifting ear and the ear plate.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The utility model provides a hinge structure for installing a gantry crane, comprising an ear plate, two pin shafts and a clamping plate. The ear plate has two through holes. There are two ear plates, which are arranged in parallel. The two through holes on the two ear plates correspond to each other to form two groups of holes. Two pin shafts are rotatably installed in the two groups of holes, respectively. One of the pin shafts is used to connect with a lifting ear on the main beam of the gantry crane, and the other pin shaft is used to connect with a lifting ear on a support leg of the gantry crane. The lifting ear is located between the two ear plates. A baffle is fixedly provided at one end of the pin shaft, and a clamping plate is detachably connected to the other end of the pin shaft by bolts. Both ear plates are located between the baffle and the clamping plate.

[0026] When the hinge structure is used to connect the main beam lug and the leg lug of the gantry crane, first insert a pin into one of the through holes on one ear plate, then insert the pin into the lifting hole of the main beam lug, then insert the pin into one of the through holes on the other ear plate, and then use bolts to connect the clamping plate to the other end of the pin to complete the connection between the main beam lug and the hinge structure. Then insert another pin into another through hole of one ear plate, then insert the pin into the lifting hole of the leg lug, then insert the pin into another through hole of the other ear plate, and finally use the remaining bolts to connect another clamping plate to the other end of the pin to complete the connection between the leg lug and the hinge structure. The clamping plate and the baffle at one end of the pin jointly prevent the lug and the lug from sliding off the pin.

[0027] Through the above structure, when the legs are hoisted to a vertical position, the clamping plate can be removed from the other end of the pin shaft by simply removing the bolts, and then the pin shaft can be pulled out. Compared with the spring lock pins used in the existing hinge structures of this type, the bolts in the hinge structure provided by the utility model are more convenient to remove. Therefore, the hinge structure provided by the utility model is more convenient to disassemble during the installation of the gantry crane, thereby facilitating the improvement of the installation efficiency of the gantry crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of a hinge structure for gantry crane installation provided by an embodiment of the utility model;

[0030] Figure 2 yes Figure 1 Another perspective view of the hinge structure shown;

[0031] Figure 3 It is an exploded view of a hinge structure for gantry crane installation provided by an embodiment of the utility model;

[0032] Figure 4 It is a cross-sectional view of a hinge structure for gantry crane installation provided by an embodiment of the utility model;

[0033] Figure 5 yes Figure 4 A local enlarged view of area A;

[0034] Figure 6 It is a schematic diagram of the structure of the pin in the embodiment of the utility model;

[0035] Figure 7 It is an exploded view of the card board in the embodiment of the utility model;

[0036] Figure 8 It is a schematic structural diagram of the arc segment in the embodiment of the utility model;

[0037] Fig. 9 It is a structural schematic diagram of the lifting ring in the embodiment of the utility model.

[0038] In the figure:

[0039] 100-ear plate, 110-through hole, 200-pin, 210-blocking piece, 220-screw hole, 230-annular groove, 240-threaded hole, 300-bolt, 400-clip plate, 410-arc segment, 411-arc plug plate, 412-arc covering plate, 4121-through hole, 500-lifting ring, 510-ring body, 520-screw, 600-gasket, 700-lifting ear. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0041] Example:

[0042] The hinge structure for installing a gantry crane provided by the utility model is as follows Figure 1-Figure 4 As shown, it includes an ear plate 100, two pins 200 and a clamping plate 400, wherein:

[0043] The ear plate 100 is a steel plate with a thickness of at least 70 mm. Two through holes 110 are provided on the ear plate 100, and the through holes 110 penetrate through the two side surfaces of the ear plate 100. There are two ear plates 100, and the two ear plates 100 are arranged in parallel, and the two through holes 110 on the two ear plates 100 correspond to each other to form two groups of holes. For example, the two ear plates 100 are respectively the first plate and the second plate, and the two through holes 110 on the first plate are respectively the first hole and the second hole, and the two through holes 110 on the second plate are respectively the third hole and the fourth hole, and the first hole and the third hole correspond to form one group of holes, and the second hole and the fourth hole correspond to form another group of holes.

[0044] Two pins 200 are rotatably mounted on the two sets of holes, one of which is used to connect with the lug 700 on the main beam of the gantry crane, and the other is used to connect with the lug 700 on the legs of the gantry crane, and the lug 700 is located between the two ear plates 100. In this way, the lug 700 on the main beam of the gantry crane and the lug 700 on the legs of the gantry crane are hinged by using the two pins 200 and the two ear plates 100. It should be noted that the legs of the gantry crane refer to the rigid legs or flexible legs of the gantry crane.

[0045] A baffle 210 is integrally formed at one end of the pin shaft 200 , and a clamping plate 400 is detachably connected to the other end of the pin shaft 200 via a bolt 300 . The two ear plates 100 and the lifting lug 700 between the two ear plates 100 are located between the baffle 210 and the clamping plate 400 .

[0046] When the hinge structure is used to connect the main beam lug 700 and the leg lug 700 of the gantry crane, firstly, a pin shaft 200 is inserted into one of the through holes 110 on one ear plate 100, then the pin shaft 200 is inserted into the lifting hole of the main beam lug 700, then the pin shaft 200 is inserted into one of the through holes 110 on the other ear plate 100, and then the clamping plate 400 is connected to the other end of the pin shaft 200 by using the bolt 300, so as to complete the connection work between the main beam lug 700 and the hinge structure. Then, another pin shaft 200 is inserted into another through hole 110 of one ear plate 100, then the pin shaft 200 is inserted into the lifting hole of the leg lug 700, then the pin shaft 200 is inserted into another through hole 110 on the other ear plate 100, and finally another clamping plate 400 is connected to the other end of the pin shaft 200 by using the remaining bolts 300, so as to complete the connection work between the leg lug 700 and the hinge structure. The clamping plate 400 and the blocking piece 210 at one end of the pin shaft 200 jointly prevent the ear plate 100 and the lifting ear 700 from sliding off the pin shaft 200 .

[0047] Through the above structure, when the legs are hoisted to a vertical position, the clamping plate 400 can be removed from the other end of the pin 200 by simply removing the bolt 300, and then the pin 200 can be pulled out. Compared with the spring lock pin used in the existing hinge structure of this type, the bolt 300 in the hinge structure provided by the utility model is more convenient to remove, so the hinge structure provided by the utility model is more convenient to disassemble during the installation of the gantry crane, thereby facilitating the improvement of the installation efficiency of the gantry crane.

[0048] Alternatively, if Figure 5-Figure 8 As shown, the clamping plate 400 in this embodiment includes multiple arc segments 410, each arc segment 410 is provided with a through hole 4121, and multiple screw holes 220 are provided on the circumferential outer wall of the pin shaft 200, and the screw holes 220 are located near the other end of the pin shaft 200. The bolts 300 pass through the through holes 4121 and are screwed with the screw holes 220, so that the arc segment 410 is detachably fixedly connected to the other end of the pin shaft 200 by the bolts 300, and the multiple arc segments 410 are evenly distributed around the pin shaft 200. In this way, the clamping plate 400 composed of the multiple arc segments 410 blocks the ear plate 100 in the circumferential direction of the pin shaft 200, and better prevents the ear plate 100 from falling off the pin shaft 200.

[0049] Of course, the clamping plate 400 may also be an L-shaped plate body, which is connected to the circumferential outer wall of the other end of the pin shaft 200 by bolts 300. In this case, the L-shaped plate body can block the ear plate 100 on one side.

[0050] Optimally, in this embodiment, the number of arc segments 410 constituting the clamping plate 400 is three, and the three arc segments 410 are spliced ​​to form a set of rings arranged on the pin 200, and each arc segment 410 is connected to the pin 200 by two bolts 300, and the two bolts 300 are sequentially distributed along the circumference of the pin 200. Of course, the number of arc segments 410 can also be two, four, or five, and each arc segment 410 can also be connected to the pin 200 by three or four bolts 300.

[0051] Specifically, the arc segment 410 in this embodiment includes an arc-shaped insert plate 411 and an arc-shaped covering plate 412, wherein:

[0052] The arc-shaped covering plate 412 is integrally formed and fixed on one side of the arc-shaped plug plate 411. The through hole 4121 is provided on the arc-shaped covering plate 412. An annular groove 230 coaxial with the pin 200 is provided on the circumferential outer wall of the pin 200. The arc-shaped plug plate 411 is clamped in the annular groove, and the arc-shaped covering plate 412 covers the circumferential outer wall of the pin 200. When the arc-shaped plug plate 411 is inserted into the annular groove 230, the arc-shaped segment 410 cannot move in the axial direction of the pin 200, thereby better blocking the ear plate 100.

[0053] An optional implementation of this embodiment is as follows: the through hole 110 opened on the ear plate 100 is a waist-shaped hole, and the length direction of the waist-shaped hole is in the same direction as the length direction of the ear plate 100. And the central axes of the two waist-shaped holes in the length direction are collinear.

[0054] With the aid of the waist-shaped hole, not only is it convenient to insert the pin shaft 200, but also when the legs are lifted to a vertical position, the mating gap between the main beam and the legs can be conveniently adjusted, which is more practical.

[0055] In order to lift the hinge structure provided by the utility model to the construction site, an optional implementation of this embodiment is as follows: Figure 2 , Figure 3 , Figure 4 as well as Fig. 9 As shown, a lifting ring 500 is installed at one end or both ends of the pin shaft 200 to facilitate connection with the hook of the lifting device, and the lifting device has been used to transport the pin shaft 200 to the construction location.

[0056] Optionally, the lifting ring 500 includes a ring body 510 and a screw rod 520, the screw rod 520 is fixed on the outer ring wall of the ring body 510, and threaded holes 240 are provided at both ends of the pin shaft 200, and the threaded holes 240 are used to screw the screw rod 520. When used, the threaded holes 240 at both ends of the pin shaft 200 are respectively screwed with a lifting ring 500, or the lifting ring 500 can be screwed only at one end of the pin shaft 200. It should be noted that the threaded hole 240 is coaxial with the pin shaft 200.

[0057] Of course, other forms of the lifting ring 500 in this embodiment, for example, a stud is arranged on the end face of the above-mentioned pin shaft 200, and the lifting ring 500 includes a ring body 510 and a screw sleeve fixed on the outer wall of the ring body 510, and the screw sleeve is screwed to the stud, so that the lifting ring 500 is installed on the end face of the pin shaft 200.

[0058] In order to facilitate the control of the gap between the lifting ear 700 and the ear plate 100, an optional implementation of this embodiment is as follows: Figure 3 and Figure 4As shown, a gasket 600 is sleeved on the above-mentioned pin shaft 200, and the gasket 600 is cushioned between the above-mentioned ear 700 and the ear plate 100. During the specific installation, the thickness of the ear 700 and the minimum span between the baffle 210 on the pin shaft 200 and the annular clamping groove 230 are first measured, and then the number of gaskets 600 is determined according to the thickness of the ear 700, and then the pin shaft 200 passes through the through hole 110 of a baffle, and then the corresponding number of gaskets 600 are sleeved on the pin shaft 200, and then the pin shaft 200 passes through the main beam ear 700 or the leg ear 700, and then the corresponding number of gaskets 600 are sleeved on the pin shaft 200, and then the pin shaft 200 passes through the through hole 110 on the other ear plate 100, and finally the clamping plate 400 is installed on the other end of the pin shaft 200 by using the bolt 300.

[0059] By using the gasket 600 , the gap between the ear plate 100 and the lifting ear 700 is filled, which not only prevents the lifting ear 700 from directly contacting the ear plate 100 , but also makes the hinge structure more stable.

[0060] Of course, if the gap between the ear plate 100 and the lifting ear 700 is very small, the gasket 600 may not be installed on the pin 200 .

[0061] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A hinge structure for gantry crane installation, characterized in that: include: The ear plate (100) is provided with two through holes (110), the number of the ear plates (100) is two, the two ear plates (100) are arranged in parallel, and the two through holes (110) on the two ear plates (100) correspond one to one to form two groups of holes; Two pins (200) are rotatably mounted on the two groups of hole groups, one of the pins (200) is used to connect with a lifting lug (700) on the main beam of the gantry crane, and the other pin (200) is used to connect with a lifting lug (700) on a supporting leg of the gantry crane, and the lifting lug (700) is located between the two ear plates (100); A baffle (210) is fixedly provided at one end of the pin shaft (200), and a clamping plate (400) is detachably connected to the other end of the pin shaft (200) via a bolt (300), and the two ear plates (100) are both located between the baffle (210) and the clamping plate (400).

2. The hinge structure for gantry crane installation according to claim 1, characterized in that: The card board (400) comprises: The arc segment (410) is provided with a through hole (4121), and a screw hole (220) is provided on the circumferential outer wall of the pin shaft (200), wherein the screw hole (220) is located near the other end of the pin shaft (200), and the bolt (300) passes through the through hole (4121) and is screwed to the screw hole (220), so that the arc segment (410) can be detachably connected to the pin shaft (200); The number of the arc segments (410) is multiple, and the multiple arc segments (410) are evenly distributed around the pin shaft (200).

3. The hinge structure for gantry crane installation according to claim 2, characterized in that: The number of the arc segments (410) is three, and the three arc segments (410) are spliced ​​to form a set of rings arranged on the pin shaft (200), and each arc segment (410) is connected to the pin shaft (200) via two bolts (300).

4. The hinge structure for gantry crane installation according to claim 3, characterized in that: The arc segment (410) comprises: An arc-shaped inserting plate (411) is provided with an annular groove (230) coaxial with the pin shaft (200) on the circumferential outer side wall of the pin shaft (200), and the arc-shaped inserting plate (411) is clamped in the annular groove; The arc-shaped covering plate (412) is fixedly mounted on a side surface of the arc-shaped inserting plate (411), the arc-shaped covering plate (412) covers the circumferential outer side wall of the pin shaft (200), and the through hole (4121) is provided on the arc-shaped covering plate (412).

5. The hinge structure for gantry crane installation according to any one of claims 1 to 4, characterized in that: The through hole (110) is a waist-shaped hole, and the length direction of the waist-shaped hole is in the same direction as the length direction of the ear plate (100).

6. The hinge structure for gantry crane installation according to any one of claims 1 to 4, characterized in that: A lifting ring (500) is installed at one end or both ends of the pin shaft (200).

7. The hinge structure for gantry crane installation according to claim 6, characterized in that: The lifting ring (500) comprises: Ring body (510); A screw (520) is fixedly mounted on the outer ring wall of the ring body (510); Threaded holes (240) are provided at both ends of the pin shaft (200), and the threaded holes (240) are used for threading the screw rod (520).

8. The hinge structure for gantry crane installation according to any one of claims 1 to 4, characterized in that: It also includes a gasket (600), which is sleeved on the pin shaft (200) and cushioned between the lifting ear (700) and the ear plate (100).

Images