CN218931522U

CN218931522U - Double-beam portal crane

Info

Publication number: CN218931522U
Application number: CN202223361626.4U
Authority: CN
Inventors: 党继辉; 何朝刚; 高锋; 汪海裕
Original assignee: Ningbo Aotu Heavy Industries Co ltd
Current assignee: Ningbo Aotu Heavy Industries Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-28
Anticipated expiration: 2032-12-13

Abstract

The utility model provides a double-beam portal crane, which comprises two portal mounting frames and two main beams, wherein the two portal mounting frames are arranged at intervals along the length direction of the main beams, the two main beams are mutually parallel and connected to the tops of the portal mounting frames, and the bottoms of the two portal mounting frames are respectively connected with a cart travelling mechanism; the electric hoist is characterized by further comprising a suspension beam assembly, wherein two ends of the suspension beam assembly are respectively connected to the lower ends of the two main beams in a sliding mode through two connecting parts, driving assemblies for driving the suspension beam assembly to slide along the length direction of the main beams are arranged on the connecting parts, and the middle part of the suspension beam assembly is connected with the electric hoist. The double-beam gantry crane disclosed by the utility model integrates a suspension crane and a double-beam gantry crane, and effectively improves the application range of the crane.

Description

Double-beam portal crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a double-beam portal crane.

Background

A crane refers to a multi-action lifting machine that vertically lifts and horizontally conveys weights within a certain range. Also known as crown block, aerial crane, crane. Generally, they can be classified into portal cranes and overhead cranes.

The portal crane is also called a portal crane and is mainly used for loading and unloading operations of outdoor goods yards, stock yards and bulk goods. The portal crane has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, and is widely used in port cargo yards. The existing double-beam gantry crane is generally used for loading, unloading and lifting cargoes in an open-air cargo yard, the lifting of the crane mainly depends on a large-distance lifting mechanism below a portal frame to realize the large-distance lifting of heavy objects, and a crane trolley arranged on a main beam of the portal frame in a sliding manner is used for carrying out small-range position adjustment.

In addition, the suspension crane is usually arranged on a fixed plant roof structure, I-steel is fixed above the suspension crane to serve as a walking track of the suspension crane, and a rail bearing beam and a track are not required to be arranged, so that the cost can be effectively reduced, and the space of a plant can be saved; the large-distance lifting of the crane is realized by the travelling of the crane trolley on the track beam.

In other words, the conventional and common gantry crane or overhead crane belongs to two types of cranes in the prior art and products, because the application ranges and functions of the two types of cranes are completely different, but because the functions of the two types of equipment are required to be used simultaneously in certain specific occasions, since no hoisting equipment integrating functions and advantages of the overhead crane and the gantry crane is currently available, special use requirements of customers cannot be met in certain specific occasions.

Disclosure of Invention

The utility model solves the problems that: at least one defect in the prior art is overcome, and the double-beam gantry crane is provided, integrates a suspension crane and a double-beam gantry crane, and effectively improves the application range of the crane.

In order to solve the problems, the utility model provides a double-beam portal crane, which comprises two portal mounting frames and two main beams, wherein the two portal mounting frames are arranged at intervals along the length direction of the main beams, the two main beams are mutually parallel and are connected to the top of the portal mounting frames, and the bottoms of the two portal mounting frames are respectively connected with a cart travelling mechanism; the two ends of the suspension beam assembly are respectively provided with a connecting part, and the two connecting parts are respectively and slidably connected to the lower ends of the two main beams so that the suspension beam assembly is connected to the lower ends of the main beams in a suspension manner; each connecting part is provided with a driving component for driving the suspension beam component to slide along the length direction of the main beam, and the middle part of the suspension beam component is connected with an electric hoist.

Compared with the prior art, the utility model has the advantages that:

the two-girder portal crane comprises two portal frames, wherein the bottoms of the two portal frames are respectively provided with a corresponding cart travelling mechanism, namely the whole crane structure realizes long-distance lifting through the cart travelling mechanism; the two ends of the suspension beam assembly are respectively connected with the two main beams in a sliding way through corresponding connecting parts, and the driving assembly is further arranged on the connecting parts and can drive the whole suspension beam assembly to slide on the main beams, so that the effect of hanging a crane is achieved through flexible lifting and hoisting of the electric hoist; namely, the portal crane effectively combines the characteristics of the portal crane and the suspension crane, and fully improves the application range.

As an improvement, the suspension beam assembly comprises two suspension main beams which are parallel to each other and extend along the width direction of the door-shaped mounting frame, two ends of the two suspension main beams are respectively connected and fixed through two suspension end beams, and the two suspension end beams are positioned at two sides of the main beams; and a mounting rack for mounting the electric hoist is arranged between the middle parts of the two hanging main beams. In the improved structure, the suspension beam assembly is formed by assembling two suspension main beams and four suspension end beams, and the structure is firm; and the electric hoist is fixed in installation through the mounting bracket, stable in structure and convenient in installation.

Further improved, each connecting part comprises two groups of roller assemblies arranged at two ends of the connecting rod, and each group of roller assemblies comprises a roller bracket and at least two rollers symmetrically arranged at two sides of the roller bracket; the lower end of each main beam is provided with an installation bottom plate extending along the length direction of the main beam, two ends of the width direction of the installation bottom plate respectively exceed two sides of the width direction of the main beam to form two installation skirtboards, and symmetrically arranged rollers of each group of roller assemblies are respectively in rolling fit with the upper ends of the two installation skirtboards; the drive assembly is configured to drive the roller assembly to roll over the mounting skirt. In the above-mentioned improvement structure, hang beam assembly both ends and join in marriage the lower extreme at the girder through two sets of roller components slip respectively, effectively guarantee suspended structure's stability to under corresponding drive assembly effect, hang beam assembly can be along girder length direction automatic walking, realizes the hoist and mount transportation of object along girder length direction.

Still further, the drive assembly includes a drive motor coupled to the roller bracket outer wall for driving the at least one roller to roll on the mounting skirt to form a drive wheel. In the improved structure, the motor is selected as a mechanism for driving the suspension beam assembly to walk, so that the driving force is stable, the maintenance is convenient, and the service life is long.

Still improve, two the upper end of girder is provided with a plurality of bracing pieces, and is a plurality of the bracing piece is followed the width direction of door-type mounting bracket extends and follows the length direction interval setting of girder is in order to form supporting platform, supporting platform's upper end has laid the sunshade membrane that can accomodate. In the improved structure, the sunshade films with sunshade and rain shielding functions are further arranged at the upper ends of the two main beams, so that the function of protecting the traveling mechanism of the suspension beam assembly is achieved, and a barrier can be provided for workers to work in an disfiguring weather environment.

Still improve, every door-type mounting bracket all includes the horizontal connection roof beam, the both ends of horizontal connection roof beam all are provided with vertical support beam, two vertical support beam's top respectively with two the girder is connected, and two between the girder with two vertical support beam's position connection has the stiffening beam that corresponds. Among the above-mentioned improvement structure, the crossbeam of self has been saved at door-type mounting bracket top, adopts the mode of direct and girder connection to be connected with the entablature between two girders and the position that two vertical support beams correspond, simplify the mounting bracket structure, can guarantee structural strength simultaneously.

And further improved, vertical reinforcing rods are respectively arranged at the positions, corresponding to the vertical supporting beams, of the upper ends of the two main beams, diagonal rods are symmetrically connected to the upper ends of the vertical reinforcing rods along the two sides of the length direction of the main beams, and the other ends of the two diagonal rods are respectively connected to the upper end faces of the main beams. In the improved structure, the vertical reinforcing rods and the diagonal braces are arranged to effectively enhance the strength performance of the whole girder structure.

And further improved, honeycomb holes are formed in two side walls of the two main beams in the width direction. In the improved structure, the honeycomb holes in the side wall of the main beam are arranged to achieve a certain weight reduction effect.

Drawings

FIG. 1 is a schematic view of a double beam gantry crane of the present utility model;

fig. 2 is a schematic structural view of the suspension beam assembly of the present utility model with an electric hoist mounted (without a drive motor mounted);

FIG. 3 is a top view of the structure of FIG. 2 (with a drive motor installed);

FIG. 4 is an enlarged schematic view of the structure of the portion X in FIG. 1;

fig. 5 is a schematic view of the structure of the sunshade film of the double beam gantry crane of fig. 1 after installation.

Reference numerals illustrate:

1. a main beam; 2. a cart travel mechanism; 3. a suspension beam assembly; 3.1, hanging a main girder; 3.2, hanging end beams; 3.3, mounting rack; 4. an electric hoist; 5. a roller bracket; 6. a roller; 7. installing a skirt board; 8. a driving motor; 9. a support rod; 10. sunshade film; 11. a horizontal connecting beam; 12. a vertical support beam; 13. a reinforcing beam; 14. a vertical reinforcing rod; 15. and a diagonal draw bar.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "top", "upper", "lower", "middle", "both sides", "outer wall", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the utility model provides a double-girder portal crane, which comprises two portal frames 3.3 and two girders 1, wherein the two portal frames 3.3 are arranged at intervals along the length direction of the girders 1, and the two girders 1 are parallel to each other and are connected to the top of the portal frames 3.3.

The double-beam gantry crane further comprises a suspension beam assembly 3, wherein connecting parts are respectively arranged at two ends of the suspension beam assembly 3, and the two connecting parts are respectively and slidably connected to the lower ends of the two main beams 1, so that the suspension beam assembly 3 is connected to the lower ends of the main beams 1 in a hanging manner; the connecting parts are respectively provided with a driving component for driving the suspension beam component 3 to slide along the length direction of the main beam 1, and the middle part of the suspension beam component 3 is connected with an electric hoist 4; preferably, the electric hoist 4 adopts a single-reel variable-frequency lifting mechanism.

Specifically, as shown in fig. 2 and 3, the suspension beam assembly 3 includes two suspension main beams 3.1 parallel to each other and extending along the width direction of the door-shaped mounting frame 3.3, two ends of the two suspension main beams 3.1 are respectively connected and fixed by two suspension end beams 3.2, and the two suspension end beams 3.2 are located at two sides of the main beam 1; in addition, a mounting frame 3.3 for mounting the electric hoist 4 is arranged between the middle parts of the two hanging main beams 3.1. More specifically, each connecting part in the structure comprises two groups of roller 6 components arranged at two ends of the connecting rod, and each group of roller 6 components comprises a roller bracket 5 and at least two rollers 6 symmetrically arranged at two sides of the roller bracket 5; the lower end of each main beam 1 is provided with an installation bottom plate extending along the length direction of the main beam, and two ends of the width direction of the installation bottom plate respectively exceed two sides of the width direction of the main beam 1 to form two installation skirtboards 7, as shown in fig. 4, symmetrically arranged rollers 6 of each group of roller 6 assemblies are respectively in rolling fit with the upper ends of the two installation skirtboards 7; the drive assembly is used to drive the roller 6 assembly to roll over the mounting skirt 7. In this embodiment, preferably, each set of roller 6 assemblies includes four rollers 6, and two sides of each roller bracket 5 are provided with two rollers 6, that is, eight rollers 6 are respectively provided at two ends of the suspension beam assembly 3, and the eight rollers 6 are respectively in two symmetrical rows and are in rolling fit on two safety skirtboards at the lower end of the main beam 1, so that stability of the suspension structure is fully ensured while the suspension beam assembly 3 is moved. In this embodiment, the two suspension girders 3.1 are of "i" steel.

In addition, the driving assembly comprises a driving motor 8, and the driving motor 8 is connected to the outer wall of the roller bracket 5 and is used for driving at least one roller 6 to roll on the mounting apron 7 to form a driving wheel. Of course, in order to enable the suspension beam assembly 3 to slide more flexibly along the main beam 1, a driving motor 8 is provided on the outer wall of each roller bracket 5 to provide a more stable driving force.

On the other hand, as shown in fig. 5, a plurality of support rods 9 are arranged at the upper ends of the two main beams 1, the plurality of support rods 9 extend along the width direction of the door-shaped mounting frame 3.3 and are arranged at intervals along the length direction of the main beams 1 to form a support platform, and a foldable sunshade film 10 is laid at the upper end of the support platform, so that the support platform has a sunshade and rain shielding function and mainly plays a role in protecting the driving motor 8 and the electric hoist 4; the protective screen is also provided for workers to work in bad weather environment; the sunshade film 10 in the embodiment adopts a high-temperature-resistant and aging-resistant film material, and has long service life; naturally, the sunshade film 10 can be variously designed in color in order to maintain the beautiful appearance.

In addition, as shown in fig. 1, in order to further optimize the structure of the whole portal crane, each portal frame 3.3 includes a horizontal connecting beam 11, two ends of the horizontal connecting beam 11 are respectively provided with a vertical supporting beam 12, the top ends of the two vertical supporting beams 12 are respectively connected with the two main beams 1, and a reinforcing beam 13 is connected between the two main beams 1 at a position corresponding to the two vertical supporting beams 12, and the reinforcing beam 13 is also connected between two ends of the two main beams 1, so as to fully ensure the stability of the double-beam structure. Specifically, in this structure, a cart running mechanism 2 is disposed at the bottom of each horizontal connecting beam 11, and is used for driving the translation of the whole door-shaped mounting frame 3.3, where the cart running mechanism 2 is in the prior art, and will not be described in detail herein.

Because in the above-mentioned structure, the crossbeam of self has been saved to the upper end of portal frame 3.3, adopt the mode of direct and girder 1 connection, consequently in order to further increase the structural strength of whole portal crane, be provided with vertical stiffener 14 respectively in the upper end of two girders 1 and each vertical supporting beam 12 position that corresponds in this embodiment, each vertical stiffener 14 upper end is connected with diagonal brace 15 along girder 1 length direction's bilateral symmetry, the other end of two diagonal braces 15 is connected at girder 1 up end respectively, as shown in fig. 1, namely increased four triangular reinforced structures simultaneously in the upper end of two girders 1, promote whole hoist structural strength.

In addition, in this embodiment, honeycomb holes are formed on both side walls of the two main beams 1 in the width direction, so that the structural strength is ensured and the weight is reduced.

Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.

Claims

1. The utility model provides a double-beam portal crane, includes two door type mounting bracket (3.3) and two girders (1), two door type mounting bracket (3.3) are followed the length direction interval setting of girder (1), and two girder (1) are parallel to each other be in connect door type mounting bracket (3.3) top, two the bottom of door type mounting bracket (3.3) is connected with cart running gear (2) respectively, its characterized in that: the two ends of the suspension beam assembly (3) are respectively provided with a connecting part, and the two connecting parts are respectively and slidably connected to the lower ends of the two main beams (1), so that the suspension beam assembly (3) is connected to the lower ends of the main beams (1) in a hanging manner; each connecting part is provided with a driving component for driving the suspension beam component (3) to slide along the length direction of the main beam (1), and the middle part of the suspension beam component (3) is connected with an electric hoist (4).

2. The double-girder gantry crane of claim 1, wherein: the hanging beam assembly (3) comprises two hanging main beams (1) which are parallel to each other and extend along the width direction of the door-shaped mounting frame (3.3), two ends of the two hanging main beams (1) are respectively connected and fixed through two hanging end beams (3.2), and the two hanging end beams (3.2) are positioned on two sides of the main beams (1); and a mounting frame (3.3) for mounting the electric hoist (4) is arranged between the middle parts of the two hanging main beams (1).

3. The double-girder gantry crane of claim 2, wherein: each connecting part comprises two groups of roller (6) components arranged at two ends of the connecting rod, and each group of roller (6) components comprises a roller bracket (5) and at least two rollers (6) symmetrically arranged at two sides of the roller bracket (5); the lower end of each main beam (1) is provided with an installation bottom plate extending along the length direction of the main beam, two ends of the width direction of the installation bottom plate respectively exceed two sides of the width direction of the main beam (1) to form two installation skirtboards (7), and symmetrically arranged rollers (6) of each group of roller (6) assemblies are respectively in rolling fit with the upper ends of the two installation skirtboards (7); the drive assembly is used for driving the roller (6) assembly to roll on the mounting apron board (7).

4. A double-girder gantry crane according to claim 3, characterized in that: the driving assembly comprises a driving motor (8), wherein the driving motor (8) is connected to the outer wall of the roller bracket (5) and is used for driving at least one roller (6) to roll on the mounting apron board (7) to form a driving wheel.

5. The double girder gantry crane according to any one of claims 1 to 4, wherein: the upper ends of the two main beams (1) are provided with a plurality of supporting rods (9), the supporting rods (9) extend along the width direction of the door-type mounting frame (3.3) and are arranged at intervals along the length direction of the main beams (1) to form a supporting platform, and the upper ends of the supporting platform are paved with a storable sunshade film (10).

6. The double-girder gantry crane of claim 5, wherein: every door-type mounting bracket (3.3) all include horizontal connection roof beam (11), the both ends of horizontal connection roof beam (11) all are provided with vertical supporting beam (12), two the top of vertical supporting beam (12) respectively with two girder (1) are connected, and two between girder (1) with two the position that vertical supporting beam (12) corresponds is connected with stiffening beam (13).

7. The double-girder gantry crane of claim 6, wherein: the upper ends of the two main beams (1) are respectively provided with a vertical reinforcing rod (14) at positions corresponding to the vertical supporting beams (12), the upper ends of the vertical reinforcing rods (14) are symmetrically connected with diagonal rods (15) along the two sides of the length direction of the main beams (1), and the other ends of the two diagonal rods (15) are respectively connected with the upper end faces of the main beams (1).

8. The double-girder gantry crane of claim 1, wherein: honeycomb holes are formed in two side walls of the two main beams (1) in the width direction.