CN113582010B - Gantry crane reinforcing structure and reinforcing method - Google Patents
Gantry crane reinforcing structure and reinforcing method Download PDFInfo
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- CN113582010B CN113582010B CN202110840404.1A CN202110840404A CN113582010B CN 113582010 B CN113582010 B CN 113582010B CN 202110840404 A CN202110840404 A CN 202110840404A CN 113582010 B CN113582010 B CN 113582010B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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Abstract
The application discloses a gantry crane reinforcing structure and a gantry crane reinforcing method, wherein the gantry crane reinforcing method comprises the following processes: establishing a gantry crane integral analysis model in three-dimensional software, inputting the hoisted load to the gantry crane model, and performing ANSYS stress simulation analysis to obtain a gantry crane reinforcement position; establishing an integral analysis model of a gantry crane reinforcing structure, inputting the gantry crane reinforcing structure model into a reinforcing position of the gantry crane model, inputting the suspended load into the reinforced gantry crane model, and performing ANSYS stress simulation analysis; configuring a gantry crane reinforcing structure; positioning a reinforcing position of the gantry crane, and installing a gantry crane reinforcing structure on a main beam section of the gantry crane; and replacing a hoisting motor of the gantry crane. According to the reinforcing structure and the reinforcing method for the gantry crane, stress concentration positions of the gantry crane are obtained through ANSYS stress simulation analysis, and the reinforcing structure is additionally arranged aiming at the stress concentration positions; the method has short modification period and low cost, and can greatly save time and invested funds.
Description
Technical Field
The application relates to the field of hoisting equipment, in particular to a gantry crane reinforcing structure and a reinforcing method.
Background
The gantry crane is widely applied to various hoisting construction places due to the characteristics of large operation range, wide application range, strong universality and the like.
The applicant finds that the use load of the gantry crane entering the field can not meet the actual hoisting requirement on the field, but the hoisted load does not exceed the use load of the gantry crane too much, and under the condition, if the gantry crane is replaced again, a series of procedures such as material entering, installation, detection and record keeping in the process are long, and the replacement cost is too much.
Therefore, the applicant provides a gantry crane reinforcing structure and a reinforcing method, so that the gantry crane can reach the target use load, and the actual hoisting requirements on site can be met.
Disclosure of Invention
In order to solve the problems, the application provides a gantry crane reinforcing structure and a gantry crane reinforcing method.
First aspect, the application provides a portal crane reinforced structure, adopts following technical scheme:
a gantry crane reinforcing structure comprises web members fixedly connected in a main beam section of a gantry crane.
By adopting the technical scheme, the positions of stress concentration of the girder sections of the gantry crane are supported and reinforced by the web members, so that the load capacity of the girder sections of the gantry crane is improved, the actual hoisting requirement of the gantry crane on site is met, and the influence of replacing the gantry crane on the construction period is avoided.
Optionally, a supporting piece is fixedly connected to the end of the web member, and the supporting piece is fixedly connected to the main beam section of the gantry crane.
Through adopting above-mentioned technical scheme, support piece has improved the support area of web member, as the installation basis of web member, makes the mounting means of web member more nimble.
Optionally, the support member is fixedly connected by bolting, pin connecting, riveting or welding.
Optionally, the web member is a telescopic rod with adjustable length, and two ends of the web member are provided with clamps matched with the gantry crane girder section in a clamping manner.
Through adopting above-mentioned technical scheme, the web member sets up to the telescopic link, makes web member length can freely adjust, when using the web member to strengthen portal crane girder segment, can effectively improve the adaptability of web member.
Optionally, the web member includes an upper support rod and a lower support rod, the upper support rod is inserted into the lower support rod, and the overlapping positions of the upper support rod and the lower support rod are fixedly connected through a fastener.
Through adopting above-mentioned technical scheme, during the lower branch was worn to locate by the upper strut, the free regulation of realization web member length.
Optionally, the anchor clamps include fixed jack catch of rigid coupling in web member tip and the movable jack catch of slidable mounting on the web member, seted up on the web member with the communicating installation cavity in outside, rotate in the installation cavity and install the screw rod, be equipped with on the movable jack catch with screw rod complex tooth, the screw rod meshes with the movable jack catch mutually.
By adopting the technical scheme, the fixed clamping jaws and the movable clamping jaws are matched to form a closed annular structure for carrying out holding operation; when the movable clamping jaw is fixed, the position of the movable clamping jaw is adjusted by screwing the screw; and the thread transmission has a self-locking function, so that the stability of the clamp can be effectively guaranteed.
Optionally, the web member is hinged with a mounting plate, and a rubber pad is arranged on the mounting plate; the mounting plate is rotated, the rubber pad can stretch into the mounting cavity to extrude the screw.
Through adopting above-mentioned technical scheme, the rubber pad stretches into the installation cavity, extrudes on the screw rod, and the restriction screw rod rotates, and then prevents that the screw rod from rotating because of the work vibration, causing anchor clamps not hard up.
In a second aspect, the present application provides a gantry crane reinforcement method, which adopts the following technical scheme:
a gantry crane reinforcing method comprises the following steps:
establishing an integral analysis model of the current gantry crane in three-dimensional software, inputting the load lifted by the gantry crane to the gantry crane model, and performing ANSYS stress simulation analysis to obtain a stress concentration position, namely a gantry crane reinforcement position;
establishing an integral analysis model of the gantry crane reinforcing structure, inputting the model of the gantry crane reinforcing structure into a reinforcing position of a gantry crane model, inputting the load lifted by the gantry crane into the reinforced gantry crane model again, performing ANSYS stress simulation analysis, and checking whether the stress condition of the gantry crane model meets the requirement;
configuring a gantry crane reinforcing structure;
positioning a reinforcing position of the gantry crane, and installing a gantry crane reinforcing structure on a main beam section of the gantry crane;
and replacing a hoisting motor of the gantry crane according to the hoisted load, and simultaneously replacing a cable matched with the motor.
By adopting the technical scheme, the stress concentration position of the gantry crane is obtained by utilizing a data model and ANSYS stress simulation analysis, and the reinforcing structure is additionally arranged aiming at the stress concentration position so as to improve the load capacity of the gantry crane.
Optionally, the model of the gantry crane reinforcing structure is input into the reinforcing position of the gantry crane model for checking, if the model does not meet the requirement, the specification of the gantry crane reinforcing structure is changed, the process is repeated until the model meets the requirement, and the gantry crane reinforcing structure with the corresponding specification is configured.
Optionally, the reinforced gantry crane is checked and accepted according to a checking and accepting mode of newly manufacturing the gantry crane.
In summary, according to the gantry crane reinforcing structure and the gantry crane reinforcing method, the stress concentration position of the gantry crane is obtained through the data model and ANSYS stress simulation analysis, and the reinforcing structure is additionally arranged on the stress concentration position to improve the load capacity of the gantry crane.
Drawings
Fig. 1 is a schematic structural diagram of a gantry crane.
Fig. 2 is a schematic view of a gantry crane reinforcing structure in embodiment 1 of the present application.
Fig. 3 is a schematic view of a gantry crane reinforcing structure in embodiment 2 of the present application.
Fig. 4 is a schematic structural diagram of the anti-loosening assembly in embodiment 2 of the present application.
Description of reference numerals:
1. a main beam section; 2. a leg section; 3. a web member; 4. a support plate; 5. an upper support rod; 51. fixing the rod; 6. a lower support rod; 61. a sleeve; 7. a clamp; 71. fixing the clamping jaw; 72. a movable jaw; 8. a screw; 9. a locking assembly; 91. mounting a plate; 92. and (7) a rubber pad.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, the gantry crane includes a girder section 1 and leg sections 2 vertically and fixedly connected to two ends of the girder section 1, the girder section 1 of the gantry crane is a steel truss girder, and the leg sections 2 are composed of steel pipes and a cross-brace structure.
The embodiment of the application discloses portal crane reinforcing structure and reinforcing method, which temporarily reinforce a portal crane which enters a field but does not meet the field use requirement, so that the portal crane meets the use requirement after being reinforced, and the influence of the replacement of the portal crane on the construction period is reduced.
Example 1
Referring to fig. 2, the gantry crane reinforcing structure comprises a web member 3 and a support plate 4 fixedly connected to the end of the web member 3, wherein the support plate 4 is provided with a through hole; the web member 3 can be a square steel tube with the diameter of 80 multiplied by 600 mm; the supporting plate 4 can be made of a 160X 120X 8mm steel plate.
The web members 3 are vertically distributed in a main beam section 1 of the gantry crane, the lower ends of the web members 3 are supported at the joint of the lower ends of the main beam section 1 steel truss inclined struts, the upper ends of the web members are abutted to the main beam section 1 steel truss upper cross beam, and the upper ends and the lower ends of the web members 3 are fixed by high-strength bolts. Of course, the fixing mode of the web member 3 may also be selected from detachable pin connection, or non-detachable welding, riveting, etc., and is not limited to bolting.
The reinforcing method of the gantry crane comprises the following steps:
establishing an integral analysis model of the current gantry crane in three-dimensional software, inputting the load lifted by the gantry crane to the gantry crane model, and performing ANSYS stress simulation analysis to obtain a stress concentration position, namely a gantry crane reinforcement position;
establishing an integral analysis model of the gantry crane reinforcing structure, inputting the model of the gantry crane reinforcing structure into a reinforcing position of a gantry crane model, inputting the load lifted by the gantry crane into the reinforced gantry crane model again, performing ANSYS stress simulation analysis, and checking whether the stress condition of the gantry crane model meets the requirement;
configuring a gantry crane reinforcing structure with corresponding specification according to the requirement; if the standard of the gantry crane reinforcing structure is not met, the specification of the gantry crane reinforcing structure is changed, the process is repeated until the standard is met, and the gantry crane reinforcing structure with the corresponding specification is configured;
positioning a reinforcing position of the gantry crane, and installing a gantry crane reinforcing structure on the main beam section 1 of the gantry crane;
and replacing a gantry crane hoisting motor according to the hoisted load, and simultaneously replacing a cable matched with the motor to ensure that the current load of the cable meets the requirement.
And (3) checking and accepting the reinforced equipment according to a checking and accepting mode of new manufacturing equipment:
(1) static load test
And (3) hoisting the span-middle position of the main beam section 1 by 1.25 times of rated load by adopting a mode of gradually increasing the load. The load is separated from the position 100-200mm above the foundation, and the hovering time is not less than l0 min; load is unloaded, and each position of the inspection portal structure has no permanent deformation, and the structure weld position is inspected in a particularly important mode, so that the weld joint is free of cracking, paint is free of falling, and the joint is free of loosening.
(2) Dynamic load test
The hoisting mechanism is loaded according to 1.1 times of rated load, each action in the experiment should be started and braked in a repeated motion within the stroke range, and the test load should not appear to move reversely; the intermittent time of operation is reserved according to the power connection duration of the motor of the mechanism; the test time should last lh.
After the test, whether each mechanism or each structure is damaged or not is checked, and whether the connection part is loosened or damaged or not is checked.
After the test is finished, the structure of the portal frame and the mechanical and electrical system are checked in detail again, and if the abnormity affecting safe use, such as component cracking, serious deformation or serious deformation of the portal frame, does not exist, the test is successful.
Example 2
The difference between this embodiment and embodiment 1 is that, referring to fig. 3, a web member 3 of the gantry crane reinforcing structure is a telescopic rod with adjustable length, and two ends of the web member 3 are both provided with clamps 7 which are in clamping fit with a main beam section 1 of the gantry crane.
Specifically, web member 3 includes branch 5 and lower branch 6, goes up branch 5 and lower branch 6 in one side in opposite directions, goes up the rigid coupling on branch 5 and has dead lever 51, and the rigid coupling has the sleeve pipe 61 that supplies dead lever 51 male on lower branch 6, has all seted up the through-hole on dead lever 51 and the sleeve pipe 61, and after the through-hole on dead lever 51 and the sleeve pipe 61 is counterpointed, will go up branch 5 and lower branch 6 through wearing to establish the high strength bolt and fix together.
The end of the upper support rod 5 far away from the lower support rod 6 is the mounting end of the clamp 7. Referring to fig. 3 and 4, the clamp 7 includes a fixed jaw 71 and a movable jaw 72, the fixed jaw 71 is fixedly connected to the end of the upper support rod 5 or the lower support rod 6, the movable jaw 72 is slidably mounted on the upper support rod 5 or the lower support rod 6 and is located inside the fixed jaw 71, and the fixed jaw 71 and the movable jaw 72 cooperate to form a closed annular structure for carrying out a holding operation.
The upper support rod 5 and the lower support rod 6 are both provided with a sliding chute for the movable clamping jaw 72 to slide, one side of the upper support rod 5 and one side of the lower support rod 6 are provided with an installation cavity communicated with the sliding chute, and at least one surface of the installation cavity penetrates through the upper support rod 5 or the lower support rod 6 and is communicated with the outside; the screw rod 8 is rotatably arranged in the mounting cavity, and the axial direction of the screw rod 8 is parallel to the moving direction of the movable clamping jaw 72.
The movable claws 72 are provided with sliding blocks which are in sliding fit with the sliding grooves, and the sliding grooves are arranged at the closing-in positions of the groove openings to prevent the sliding blocks from slipping accidentally; teeth are arranged on one side of the sliding block facing the screw 8 along the direction of the sliding chute, so that the screw 8 is meshed with the sliding block after the sliding block is positioned in the sliding chute; thus, rotating the screw 8, under the drive of the screw, drives the movable jaw 72 to perform a translational movement towards or away from the fixed jaw 71.
Further, the upper support rod 5 and the lower support rod 6 are both provided with a locking assembly 9 for preventing the screw 8 from rotating, the locking assembly 9 comprises a mounting plate 91 and a rubber pad 92 fixedly connected to the mounting plate 91, and the mounting plate 91 is hinged to the upper support rod 5 or the lower support rod 6 and is positioned outside the mounting cavity; after the mounting plate 91 is attached to the outer wall of the upper support rod 5 or the lower support rod 6, the rubber pad 92 extends into the mounting cavity and is extruded on the screw 8 to limit the rotation of the screw 8, so that the screw 8 is prevented from rotating due to working vibration to cause the looseness of the clamp 7. The mounting plate 91 may be fixed by means of screws 8.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The utility model provides a portal crane reinforced structure which characterized in that: establishing an integral analysis model of the current gantry crane in three-dimensional software, inputting the load lifted by the gantry crane to the gantry crane model, and performing ANSYS stress simulation analysis to obtain a stress concentration position, namely a gantry crane reinforcement position;
establishing an integral analysis model of the gantry crane reinforcing structure, inputting the model of the gantry crane reinforcing structure into a reinforcing position of a gantry crane model, inputting the load lifted by the gantry crane into the reinforced gantry crane model again, performing ANSYS stress simulation analysis, and checking whether the stress condition of the gantry crane model meets the requirement;
after meeting the requirements, configuring a gantry crane reinforcing structure, wherein the gantry crane reinforcing structure comprises a web member (3) fixedly connected to the reinforcing position of a gantry crane main beam section (1);
the length of the web member (3) is adjustable, and two ends of the web member (3) are respectively provided with a clamp (7) which is in clamping fit with the portal crane girder section (1);
anchor clamps (7) include fixed jack catch (71) and the movable jack catch (72) of slidable mounting on web member (3) of rigid coupling in web member (3) tip, seted up on web member (3) with the communicating installation cavity in outside, rotate in the installation cavity and install screw rod (8), be equipped with on movable jack catch (72) with screw rod (8) complex tooth, screw rod (8) mesh mutually with movable jack catch (72).
2. The gantry crane reinforcing structure of claim 1, wherein: and the end part of the web member (3) is fixedly connected with a supporting piece, and the supporting piece is fixedly connected with the portal crane girder section (1).
3. The gantry crane reinforcement structure of claim 2, wherein: the support piece is fixedly connected by bolting, pin shaft connection, riveting or welding.
4. The gantry crane reinforcing structure of claim 1, wherein: the web member (3) comprises an upper support rod (5) and a lower support rod (6), the upper support rod (5) penetrates through the lower support rod (6), and the overlapping positions of the upper support rod and the lower support rod are fixedly connected through a fastener.
5. The gantry crane reinforcing structure of claim 1, wherein: the web member (3) is hinged with a mounting plate (91), and a rubber pad (92) is arranged on the mounting plate (91); the mounting plate (91) is rotated, and the rubber pad (92) can extend into the mounting cavity to extrude the screw rod (8).
6. A gantry crane reinforcing method is characterized in that: the method comprises the following steps:
establishing an integral analysis model of the current gantry crane in three-dimensional software, inputting the load lifted by the gantry crane to the gantry crane model, and performing ANSYS stress simulation analysis to obtain a stress concentration position, namely a gantry crane reinforcement position;
establishing an integral analysis model of the gantry crane reinforcing structure, inputting the model of the gantry crane reinforcing structure into a reinforcing position of a gantry crane model, inputting the load lifted by the gantry crane into the reinforced gantry crane model again, performing ANSYS stress simulation analysis, and checking whether the stress condition of the gantry crane model meets the requirement; the gantry crane reinforcing structure is the gantry crane reinforcing structure of any one of claims 1 to 4;
configuring a gantry crane reinforcing structure;
positioning a reinforcing position of a gantry crane, and installing a gantry crane reinforcing structure on a main beam section (1) of the gantry crane;
and replacing a hoisting motor of the gantry crane according to the hoisted load, and simultaneously replacing a cable matched with the motor.
7. The gantry crane reinforcement method according to claim 6, wherein: and inputting the model of the gantry crane reinforcing structure into a reinforcing position of the gantry crane model for checking, if the model does not meet the requirements, replacing the specification of the gantry crane reinforcing structure, repeating the process until the model meets the requirements, and configuring the gantry crane reinforcing structure with the corresponding specification.
8. The gantry crane reinforcement method according to claim 6, wherein: and (4) checking and accepting the reinforced gantry crane according to a checking and accepting mode of newly manufacturing the gantry crane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110840404.1A CN113582010B (en) | 2021-07-24 | 2021-07-24 | Gantry crane reinforcing structure and reinforcing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110840404.1A CN113582010B (en) | 2021-07-24 | 2021-07-24 | Gantry crane reinforcing structure and reinforcing method |
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| CN113582010A CN113582010A (en) | 2021-11-02 |
| CN113582010B true CN113582010B (en) | 2022-06-17 |
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