Gantry crane installation method

Abstract

A gantry crane installation method, comprising: S1: providing a temporary transport track between an assembly position and an installation position; S2: completing the assembly of a gantry crane at the assembly position; S3: adjusting the spacing between moving mechanisms at the lower parts of two support legs (2) of the gantry crane on the basis of the width of the temporary transport track, moving the gantry crane onto the temporary transport track, and enabling the two moving mechanisms to engage with the temporary transport track; S4: using the temporary transport track to move the gantry crane to the installation position; and S5: adjusting the spacing between the moving mechanisms at the lower parts of the two support legs (2) on the basis of the width of a traveling track, moving the gantry crane onto the traveling track, and enabling the two moving mechanisms to engage with the traveling track. The gantry crane installation method can improve the installation efficiency of the gantry crane.

Description

Portal crane installation method TECHNICAL FIELD

[0001] The present application relates to the technical field of portal crane. More particularly, the present application relates to a portal crane installation method. BACKGROUND

[0002] The portal crane includes a main beam, a support leg, a trolley, a car and the like. In the prior art, the support leg is first erected, then the main beam is lifted to the upper end of the support leg, and then the welding of the main beam and the support leg is performed by the installation personnel to complete the installation of the portal crane. Obviously, this method needs large lifting equipment, has low installation efficiency, and is limited by the site, and can only be successfully performed in an open site. Therefore, it is necessary to design a technical solution which can overcome the above-mentioned defects to some extent. SUMMARY

[0003] An object of the present application is to provide a portal crane installation method which can improve the installation efficiency of the portal crane.

[0004] In order to achieve these objects and other advantages of the present application, according to one aspect of the present application, a portal crane installation method is provided, which comprises: S1: setting a temporary transportation track between an assembly position and an installation position; S2: completing the assembly of the portal crane at the assembly position; S3: adjusting the distance between the moving mechanisms of the lower parts of the two support legs according to the width of the temporary transportation track, moving the portal crane to the temporary transportation track, and making the two moving mechanisms cooperate with the temporary transportation track; S4: moving the portal crane to the installation position by using the temporary transportation track; S5: adjusting the distance between the moving mechanisms of the lower parts of the two support legs according to the width of the walking track, moving the portal crane to the walking track, and making the two moving mechanisms cooperate with the walking track.

[0005] Further, the lower part of the support leg is provided with a bearing platform, the moving mechanism comprises a movable support rod which is in sliding connection with the bottom of the bearing platform, and a walking wheel which is arranged at the bottom of the movable support rod, and the distance between the two moving mechanisms is adjusted by adjusting the distance between the movable supports of the lower parts of the two support legs.

[0006] Further, the bottom of the bearing platform is provided with a slide, and the movable support is slidingly arranged in the slide.

[0007] Further, the portal crane further comprises a telescopic support rod, the upper end of the telescopic support rod is connected with the bottom of the bearing platform, and the distance between the two moving mechanisms is adjusted after the bearing platform is lifted.

[0008] Further, the movable support rod comprises two sections, a first section is connected with the bearing platform, and a second section is sleeved below the first section.

[0009] Further, the portal crane further comprises an L-shaped cylinder, a first piston, a second piston, a first piston rod and a second piston rod, the L-shaped cylinder is formed with a first chamber and a second chamber in a vertical section and a horizontal section respectively, the first piston and the second piston are arranged in the two first chambers and the second chamber respectively, one end of the first piston rod is connected with the first piston in the first chamber and the other end is further hinged to the bottom of the carrying platform, one end of the second piston rod is connected with the second piston in the second chamber and the other end is further hinged to the second section, the distance between the two moving mechanisms is adjusted by adjusting the air intake in the second chamber.

[0010] Further, the distance between the two moving mechanisms is adjusted by adjusting the air intake in the first chamber according to the height difference of the temporary transportation track.

[0011] According to another aspect of the present application, the portal crane further comprises a main beam and a support leg, the support leg is provided with a carrying platform at the lower part, a moving mechanism comprising a movable support rod slidingly connected with the bottom of the carrying platform and a walking wheel arranged at the bottom of the movable support rod, the distance between the two moving mechanisms is adjusted by adjusting the distance between the two movable supports at the lower part of the support leg.

[0012] Further, the portal crane further comprises a telescopic support rod, the upper end of the telescopic support rod is connected with the bottom of the carrying platform, the distance between the two moving mechanisms is adjusted after the carrying platform is lifted.

[0013] Further, the movable support rod comprises two sections, a first section is connected with the carrying platform and a second section is sleeved below the first section, the portal crane further comprises an L-shaped cylinder, a first piston, a second piston, a first piston rod and a second piston rod, the L-shaped cylinder is formed with a first chamber and a second chamber in a vertical section and a horizontal section respectively, the first piston and the second piston are arranged in the two first chambers and the second chamber respectively, one end of the first piston rod is connected with the first piston in the first chamber and the other end is further hinged to the bottom of the carrying platform, one end of the second piston rod is connected with the second piston in the second chamber and the other end is further hinged to the second section, the distance between the two moving mechanisms is adjusted by adjusting the air intake in the second chamber and the height of the two moving mechanisms is adjusted by adjusting the air intake in the first chamber.

[0014] The present application at least has the following advantages:

[0015] The temporary transportation track is arranged between the assembling position and the installation position, the gantry crane is assembled in the assembling position, and the assembled gantry crane is moved to the installation position through the temporary transportation track, so that the defects that the installation position is narrow and large hoisting equipment is not easy to deploy and is difficult to install are overcome, the movable mechanism with adjustable spacing is arranged at the lower part of the two supporting legs of the gantry crane, so that the width of the temporary transportation track can be set according to the actual terrain, and the convenience and efficiency of gantry crane installation are further improved.

[0016] Other advantages, objects, and features of the application will be better understood from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a flowchart of an embodiment of the present application;

[0018] Fig. 2 is a structural schematic diagram of a state of a gantry crane in an embodiment of the present application;

[0019] Fig. 3 is a structural schematic diagram of another state of a gantry crane in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The application will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement the application according to the description.

[0021] It should be understood that the terms such as "have", "contain", and "include" used in the embodiments of the present application do not exclude the presence or addition of one or more other elements or combinations thereof. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the posture changes, the directional indications also change accordingly. When an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or can have a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element through a middle element. The descriptions of "first", "second", etc. in the embodiments of the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0022] It should be noted that the technical solutions of the various embodiments of the present application can be combined with each other, but must be based on the realization of a person skilled in the art, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is also not within the protection scope claimed by the present application.

[0023] As shown in FIGS. 1-3, the embodiment of the present application provides a gantry crane installation method, comprising:

[0024] S1: setting a temporary transportation track between an assembly position and an installation position;

[0025] In this step, the assembly position is used for assembly of each component of the gantry crane, which is relatively spacious, facilitating delivery of each component of the gantry crane and use of large hoisting equipment; the installation position is the actual use position of the gantry crane, which is narrow and has many obstacles, and is not conducive to direct installation of the gantry crane;

[0026] Illustratively, a mobile mechanism is arranged at the bottom of the leg 2 of the gantry crane, which is used to cooperate with the temporary transportation track to realize transportation of the gantry crane;

[0027] S2: completing assembly of the gantry crane at the assembly position;

[0028] In this step, the gantry crane generally comprises a main beam 1, two legs 2, a hoisting trolley and other components;

[0029] Illustratively, the leg 2 is first erected, then the main beam 1 is lifted to the upper end of the leg 2, and then welding is performed on the main beam 1 and the leg 2 by the installation personnel, and the mobile mechanism is installed at the bottom to complete assembly of the gantry crane;

[0030] S3: adjusting the spacing of the mobile mechanisms at the lower parts of the two legs 2 of the gantry crane according to the width of the temporary transportation track, and moving the gantry crane to the temporary transportation track and cooperating the two mobile mechanisms with the temporary transportation track;

[0031] In this step, the width of the temporary transportation track is laid according to the actual terrain, and does not need to be consistent with the width of the actual running track;

[0032] Illustratively, the mobile mechanism is provided with a roller at the bottom, which facilitates movement on the temporary transportation track;

[0033] Illustratively, the mobile mechanism is slidably arranged at the bottom of the leg 2, which is used to adjust the spacing of the two mobile mechanisms to match the temporary transportation track;

[0034] Illustratively, the temporary transportation track is composed of two parallel steel rails;

[0035] S4: moving the gantry crane to the installation position by using the temporary transportation track;

[0036] Illustratively, the gantry crane is moved from the assembly position to the installation position by using a winch to pull the gantry crane;

[0037] S5: According to the width of the walking track, adjust the distance between the two moving mechanisms at the lower part of the two supporting legs 2, move the gantry crane to the walking track, and make the two moving mechanisms cooperate with the walking track;

[0038] This step adjusts the distance between the two moving mechanisms again, so that they cooperate with the actual walking track for the actual use of the gantry crane. After the moving mechanisms cooperate with the walking track, the installation of the gantry crane is completed;

[0039] It can be seen that the embodiment sets a temporary transportation track between the assembly position and the installation position. The assembly of the gantry crane is completed at the assembly position, and the assembled gantry crane is moved to the installation position through the temporary transportation track. The defects of narrow installation position and difficulty in unfolding large hoisting equipment for installation are overcome. The lower part of the two supporting legs 2 of the gantry crane is provided with a moving mechanism with adjustable distance. Therefore, the width of the temporary transportation track can be set according to the actual terrain to avoid various obstacles. It is not necessary to strictly carry out a large amount of construction, so as to further improve the convenience and efficiency of the installation of the gantry crane.

[0040] In another embodiment, the lower part of the supporting leg 2 is provided with a bearing platform 3, the moving mechanism comprises a movable support rod 5 in sliding connection with the bottom of the bearing platform 3 and a walking wheel 7 arranged at the bottom of the movable support rod 5, and the distance between the two movable support rods 5 is adjusted along the extension direction of the main beam by adjusting the distance between the two movable support rods 5 at the lower part of the supporting leg 2;

[0041] In this embodiment, the bearing platform 3 divides the supporting leg 2 into upper and lower parts. The upper part cannot move, and the lower part is a movable support rod 5 that can slide horizontally to adjust the distance between the two movable support rods 5, thereby adapting to the temporary transportation track.

[0042] In another embodiment, the bottom of the bearing platform 3 is provided with a slide, and the movable support rod 5 is slidingly arranged in the slide;

[0043] Exemplarily, the extension direction of the slide is perpendicular to the extension direction of the temporary transportation track, and is used for adjusting the distance between the two movable support rods 5;

[0044] Exemplarily, the cross section of the slide is large at the top and small at the bottom. The upper part of the movable support rod 5 is connected with a sliding block, and the sliding block is matched with the slide, so as not to be easily pulled out of the slide.

[0045] In another embodiment, the gantry crane further comprises a telescopic support rod 4, the upper end of the telescopic support rod 4 is connected with the bottom of the bearing platform 3, and is used for lifting the bearing platform 3 and then adjusting the distance between the two moving mechanisms;

[0046] Exemplarily, referring to FIG. 3, the telescopic support rod 4 is a hydraulic rod, which is in an elongated state to lift the carrying platform 3 and the main girder 1 above it, and then the moving mechanisms are all moved outward to increase the distance between the two moving mechanisms compared with FIG. 2 to adapt to the temporary transportation track or walking track.

[0047] In another embodiment, the movable support rod 5 comprises two sections, a first section 501 connected with the carrying platform 3 and a second section 502 sleeved below the first section 501.

[0048] Exemplarily, the movable support rod 5 is provided in two sections to realize height adjustment and can be used when the two rails are at different heights, i.e., the embodiment can further reduce the work of laying the temporary transportation track, and the two rails can be set at different heights according to the terrain to realize the movement of the gantry crane without a large amount of construction.

[0049] In another embodiment, the gantry crane further comprises an L-shaped cylinder body 601, a first piston, a second piston, a first piston rod 602 and a second piston rod 603, the L-shaped cylinder body 601 is internally formed with a first chamber and a second chamber in a vertical section and a horizontal section respectively, the first piston and the second piston are respectively arranged in the two first chambers and the second chamber, one end of the first piston rod 602 is connected with the first piston in the first chamber and the other end is further hinged to the bottom of the carrying platform 3, one end of the second piston rod 603 is connected with the second piston in the second chamber and the other end is further hinged to the second section 502, and the distance between the two moving mechanisms is adjusted by adjusting the air intake amount in the second chamber.

[0050] In the embodiment, the L-shaped cylinder body 601 has a vertical section and a horizontal section, the vertical section and the horizontal section are respectively provided with a first chamber and a second chamber, the first chamber and the second chamber are respectively provided with a first piston and a second piston, the first piston is connected with the first piston rod 602, the second piston is connected with the second piston rod 603, the first piston rod 602 and the second piston rod 603 are further respectively hinged to the bottom of the carrying platform 3 and the movable support rod 5 of the second section 502, the distance between the two moving mechanisms is adjusted by adjusting the air intake amount in the second chamber, and the height of the two moving mechanisms is adjusted by adjusting the air intake amount in the first chamber; the embodiment utilizes the L-shaped cylinder body 601 and the first piston rod and the second piston rod to form a rectangular frame with the movable support rod and the carrying platform, which can strengthen the connection strength between the movable support rod 5 and the carrying platform 3 and improve the stability, and the L-shaped cylinder can provide horizontal and vertical buffering for the deflection of the gantry crane caused by the low precision of the temporary transportation track, so as to avoid the damage of the walking wheels 7 and the supporting legs 2 during the movement of the gantry crane, and thus the temporary transportation track does not need to be strictly and flatly set, which further reduces the construction difficulty and improves the construction progress.

[0051] In another embodiment, further comprising: adjusting the air intake in the first chamber according to the height difference of the temporary transportation track, adjusting the height of the two moving mechanisms, so that the walking wheels 7 at the lower ends of the two moving mechanisms respectively match with the two steel rails, facilitating the pulling and moving of the gantry crane.

[0052] The embodiment of the present application also provides a gantry crane, comprising: a main beam 1 and a support leg 2, wherein the lower part of the support leg 2 is provided with a bearing platform 3; a moving mechanism, which comprises a movable support rod 5 in sliding connection with the bottom of the bearing platform 3 and a walking wheel 7 arranged at the bottom of the movable support rod 5, and is used for adjusting the distance between the two moving mechanisms by adjusting the distance between the lower parts of the two support legs 2.

[0053] The embodiment sets a temporary transportation track between the assembly position and the installation position, the assembly of the main beam 1 and the support leg 2 is completed at the assembly position, and the assembled gantry crane is moved to the installation position through the temporary transportation track, so that the defects that the installation position is narrow and large hoisting equipment is not easy to deploy and is difficult to install are overcome, the lower parts of the two support legs 2 of the gantry crane are provided with moving mechanisms with adjustable distances, so that the width of the temporary transportation track can be set according to the actual terrain to avoid various obstacles, and the convenience and efficiency of the installation of the gantry crane are further improved.

[0054] In another embodiment, a telescopic support rod 4 is further included, the upper end of the telescopic support rod 4 is connected with the bottom of the bearing platform 3, and the telescopic support rod 4 is used for lifting the bearing platform 3 and then adjusting the distance between the two moving mechanisms to adapt to the temporary transportation track or the walking track.

[0055] In another embodiment, the movable support rod 5 comprises two sections, a first section 501 is connected with the bearing platform 3, and a second section 502 is sleeved below the first section 501; the gantry crane further comprises an L-shaped cylinder body 601, a first piston, a second piston, a first piston rod 602 and a second piston rod 603, the L-shaped cylinder body 601 is formed with a first chamber and a second chamber in the vertical section and the horizontal section respectively, the first piston and the second piston are arranged in the two first chambers and the second chamber respectively, one end of the first piston rod 602 is connected with the first piston and extends into the first chamber, and the other end is further hinged to the bottom of the bearing platform 3, one end of the second piston rod 603 is connected with the second piston and extends into the second chamber, and the other end is further hinged to the second section 502, and the second piston rod 603 is used for adjusting the distance between the two moving mechanisms by adjusting the air intake in the second chamber and adjusting the height of the two moving mechanisms by adjusting the air intake in the first chamber.

[0056] In the embodiment, the L-shaped cylinder body 601 has a vertical section and a horizontal section, the vertical section and the horizontal section are respectively provided with a first chamber and a second chamber, the first chamber and the second chamber are respectively provided with a first piston and a second piston, the first piston is connected with a first piston rod 602, the second piston is connected with a second piston rod 603, the first piston rod 602 and the second piston rod 603 are further respectively hinged with the bottom of the bearing platform 3 and the second section 502 movable support rod 5, the air intake amount in the second chamber is adjusted, the distance between the two moving mechanisms can be adjusted, the air intake amount in the first chamber is adjusted, the height of the two moving mechanisms can be adjusted; the embodiment utilizes the L-shaped cylinder body 601 to strengthen the connection strength between the movable support rod 5 and the bearing platform 3, and can provide a buffer for the gantry crane deflection caused by the low precision of the conveying track, and avoid the walking wheel 7 and the supporting leg 2 from being damaged.

[0057] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application, and other modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A method of installing a gantry crane, characterised in that, Comprising: S1: setting a temporary transportation track between an assembly position and an installation position; S2: completing assembly of the gantry crane at the assembly position; S3: adjusting the distance between the two moving mechanisms of the lower part of the legs of the gantry crane according to the width of the temporary transportation track, moving the gantry crane to the temporary transportation track, and making the two moving mechanisms cooperate with the temporary transportation track; S4: moving the gantry crane to the installation position by using the temporary transportation track; S5: adjusting the distance between the two moving mechanisms of the lower part of the legs according to the width of the walking track, moving the gantry crane to the walking track, and making the two moving mechanisms cooperate with the walking track.

2. The gantry crane installation method of claim 1, wherein, The lower part of the leg is provided with a bearing platform, and the moving mechanism comprises a movable support rod slidingly connected to the bottom of the bearing platform and a walking wheel arranged at the bottom of the movable support rod. The distance between the two moving mechanisms is adjusted by adjusting the distance between the two movable supports of the lower part of the legs.

3. The gantry crane installation method of claim 2, wherein, The bottom of the bearing platform is provided with a slide, and the movable support is slidingly arranged in the slide.

4. The gantry crane installation method of claim 2, wherein, The gantry crane further comprises a telescopic support rod, the upper end of which is connected to the bottom of the bearing platform, for lifting the bearing platform and then adjusting the distance between the two moving mechanisms.

5. The gantry crane installation method of claim 2, wherein, The movable support rod comprises two sections, a first section connected to the bearing platform and a second section sleeved below the first section.

6. The gantry crane installation method of claim 5, wherein, The gantry crane further comprises an L-shaped cylinder, a first piston, a second piston, a first piston rod and a second piston rod. The L-shaped cylinder has a first chamber and a second chamber formed in the vertical section and the horizontal section, respectively. The first piston and the second piston are arranged in the two first chambers and the second chamber, respectively. One end of the first piston rod extends into the first chamber and is connected to the first piston, and the other end is further hinged to the bottom of the bearing platform. One end of the second piston rod extends into the second chamber and is connected to the second piston, and the other end is further hinged to the second section. The distance between the two moving mechanisms is adjusted by adjusting the air intake amount in the second chamber.

7. The gantry crane installation method of claim 6, wherein, Also comprising: The height difference between the two moving mechanisms is adjusted by adjusting the air intake amount in the first chamber according to the height difference of the temporary transportation track.

8. A gantry crane, characterized in that Comprising: A main beam and a leg, the lower part of the leg being provided with a bearing platform; A moving mechanism comprising a movable support rod slidingly connected to the bottom of the bearing platform and a walking wheel arranged at the bottom of the movable support rod, for adjusting the distance between the two moving mechanisms by adjusting the distance between the two movable supports of the lower part of the legs.

9. The gantry crane of claim 8, wherein, Further comprising a telescopic support rod, the upper end of which is connected to the bottom of the bearing platform, for lifting the bearing platform and then adjusting the distance between the two moving mechanisms.

10. The gantry crane of claim 8, wherein, The movable support rod comprises two sections, a first section connected to the bearing platform and a second section sleeved below the first section. The gantry crane further comprises an L-shaped cylinder, a first piston, a second piston, a first piston rod and a second piston rod, the L-shaped cylinder is formed with a first chamber and a second chamber in a vertical section and a horizontal section respectively, the first piston and the second piston are arranged in the two first chambers and the second chamber respectively, one end of the first piston rod is connected with the first piston by extending into the first chamber, and the other end is further hinged to the bottom of the carrying platform, one end of the second piston rod is connected with the second piston by extending into the second chamber, and the other end is further hinged to the second section, for adjusting the distance between the two moving mechanisms by adjusting the air intake in the second chamber, and adjusting the height of the two moving mechanisms by adjusting the air intake in the first chamber.

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