CN220300236U

CN220300236U - Lifting operation is with adjustable high portal frame

Info

Publication number: CN220300236U
Application number: CN202321789011.3U
Authority: CN
Inventors: 王增义
Original assignee: Foshan Xinchuangyi Intelligent Machinery Co ltd
Current assignee: Foshan Xinchuangyi Intelligent Machinery Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-01-05
Anticipated expiration: 2033-07-10

Abstract

The utility model discloses a height-adjustable portal frame for hoisting operation, which comprises a top beam, wherein supporting upper beams are arranged at the bottoms of two ends of the top beam, supporting lower beams are connected to the lower ends of the supporting upper beams, bottom beams are arranged at the bottoms of the supporting lower beams, center posts are slidably arranged in the supporting lower beams, the center posts are fixed at the bottoms of the supporting upper beams, lifting components for driving the center posts and the supporting upper beams to slide in the supporting lower beams are arranged in the bottom beams, the middle parts of the bottom beams extend outwards to form extension beams, auxiliary reinforcing ribs are arranged between the extension beams and the supporting lower beams, side reinforcing ribs are arranged between the bottom beams and the supporting lower beams, and the upper reinforcing ribs are arranged at the joint of the supporting upper beams and the top beam.

Description

Lifting operation is with adjustable high portal frame

Technical Field

The utility model relates to the technical field of portal frames, in particular to a height-adjustable portal frame for hoisting operation.

Background

For being convenient for lift by crane and transfer work to heavy machinery, goods etc. often need use portal frame equipment, current portal frame that has hoist and mount height adjustment function when using, adjustable portal frame initial hoist and mount height to satisfy the hoist and mount operation demand of different height, but when the portal frame is in the use of turning up, when hoist and mount operation goes on, the holistic focus of portal frame can rise, causes the portal frame bottom unstable, has hoist and mount use potential safety hazard.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the height-adjustable portal frame for hoisting operation, which increases the placement stability of the whole portal frame structure by increasing the area of the chassis of the portal frame and the strength of the joint of the chassis, and avoids the situation that the gravity center of the portal frame is raised and unstable in use when the portal frame is lifted for use, thereby ensuring the stability of the integral placement structure of the portal frame with the adjustable use height under the condition that the height is not used.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a hoist and mount operation is with adjustable high portal frame, includes the back timber, support upper beam is installed to back timber both ends bottom, support upper beam lower extreme is connected with the support underbeam, support underbeam bottom and install the floorbar, slidable mounting has the center pillar in the support underbeam, the bottom at the support upper beam is fixed to the center pillar, be equipped with the drive center pillar in the floorbar and support the gliding lifting unit of upper beam in the support underbeam, the floorbar middle part extends to the outside and forms the extension roof beam, be equipped with auxiliary stiffener between extension roof beam and the support underbeam, be equipped with the side stiffener between floorbar and the support underbeam, support upper beam and back timber junction is equipped with the stiffener.

As a preferable technical scheme of the utility model, the lifting assembly comprises a screw rod, a threaded shaft sleeve is fixedly arranged in the middle column, the screw rod is installed on the threaded shaft sleeve in a threaded manner, a bearing is fixedly arranged in the supporting lower beam, one end of the screw rod is rotatably installed on the bearing, a motor is installed in the supporting lower beam, and the output end of the motor is fixedly connected with the screw rod.

As a preferable technical scheme of the utility model, the top end of the screw rod is fixedly provided with the limit head, and the ruler diameter of the limit head is larger than the diameter of the screw rod.

As a preferable technical scheme of the utility model, the top beam is slidably provided with the electric hoist, and the output end of the electric hoist is connected with the hook through the steel rope.

As a preferable technical scheme of the utility model, the bottom of the bottom beam is provided with a plurality of casters which are uniformly distributed, and the bottom of one bottom beam is provided with a motor wheel.

As a preferable technical scheme of the utility model, the bottom of the extension beam is provided with casters which are the same as the bottom of the bottom beam.

As a preferable technical scheme of the utility model, the top of the supporting upper beam is fixedly provided with a jacking, the top beam is fixed on the jacking, and the upper reinforcing rib is arranged between the supporting upper beam and the jacking.

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

the middle column is driven by the lifting assembly to drive the supporting upper beam to slide up and down, the height of the top beam is adjusted to a higher using position, the side reinforcing ribs are arranged at the joint of the supporting lower beam and the bottom beam, the extending beam is formed by extending outside the bottom beam, the auxiliary reinforcing ribs are connected between the extending beam and the supporting lower beam, when the gantry is used in a heightening mode, the area of the chassis of the gantry is increased, the strength of the joint of the chassis is increased, the placing stability of the whole gantry structure is improved, the situation that the center of gravity of the gantry is increased and unstable in use is caused when the gantry is used in a heightening mode is avoided, and therefore the stability of the whole placing structure of the gantry with the adjustable using height under the condition that the gantry is not used in the height is ensured.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the connection of the support underbeam to the underbeam of the present utility model;

FIG. 3 is a schematic illustration of the connection of the post to the support upper beam in accordance with the present utility model;

FIG. 4 is a cross-sectional view of a lift assembly of the present utility model;

FIG. 5 is a schematic view of the installation of the caster of the present utility model;

fig. 6 is a schematic view of the lowering state of the gantry of the present utility model.

Wherein: 1. a top beam; 2. an electric hoist; 3. a hook; 4. a reinforcing rib is arranged on the upper part; 5. supporting an upper beam; 6. a center column; 7. supporting a lower beam; 8. side reinforcing ribs; 9. a bottom beam; 10. an extension beam; 11. auxiliary reinforcing ribs; 12. an electric wheel; 13. casters; 14. a threaded shaft sleeve; 15. a positioning head; 16. a screw rod; 17. a load bearing; 18. a motor; 19. and (5) jacking.

Description of the embodiments

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the detailed description, other examples, which a person skilled in the art would have without making any inventive effort, are within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Referring to fig. 1-6, the utility model provides a height-adjustable portal frame for hoisting operation, which comprises a top beam 1, wherein the bottoms of two ends of the top beam 1 are provided with a supporting upper beam 5, the lower end of the supporting upper beam 5 is connected with a supporting lower beam 7, the bottom of the supporting lower beam 7 is provided with a bottom beam 9, a middle column 6 is slidably arranged in the supporting lower beam 7, the middle column 6 is fixed at the bottom of the supporting upper beam 5, a lifting component for driving the middle column 6 and the supporting upper beam 5 to slide in the supporting lower beam 7 is arranged in the bottom beam 9, the hoisting height of the portal frame can be adjusted to be suitable for the height of hoisting pieces, the subsequent hoisting operation is convenient to carry out, the middle part of the bottom beam 9 is outwards extended to form an extension beam 10, an auxiliary reinforcing rib 11 is arranged between the extension beam 10 and the supporting lower beam 7, a side reinforcing rib 8 is arranged between the bottom beam 9 and the supporting lower beam 7, the structural strength of a chassis joint can be increased while the chassis area of the portal frame is increased, and therefore the stability of the portal frame can be increased, and the joint of the supporting upper beam 5 and the top beam 1 is provided with an upper reinforcing rib 4.

Preferably, the lifting assembly comprises a screw rod 16, a threaded shaft sleeve 14 is fixedly arranged in the middle column 6, the screw rod 16 is arranged on the threaded shaft sleeve 14 in a threaded manner, a bearing 17 is fixedly arranged in the supporting lower beam 7, one end of the screw rod 16 is rotatably arranged on the bearing 17, a motor 18 is arranged in the supporting lower beam 7, the output end of the motor 18 is fixedly connected with the screw rod 16, the screw rod 16 is driven by the motor 18 to rotate in the bearing 17, and the middle column 6 can be driven to slide up and down through the threaded shaft sleeve 14, so that the relative height between the supporting upper beam 5 and the supporting lower beam 7 is adjusted.

Preferably, the top end of the screw 16 is fixedly provided with the limit head 15, and the size diameter of the limit head 15 is larger than that of the screw 16, so that the free end of the screw 16 can be prevented from slipping off the threaded shaft sleeve 14 during rotation adjustment of the screw 16, and the support upper beam 5 is separated from the support lower beam 7.

Preferably, the electric hoist 2 is slidably mounted on the top beam 1, and the output end of the electric hoist 2 is connected with the hook 3 through a steel rope, so that the hoisting operation of the portal frame is realized through the work of the electric hoist 2.

Preferably, the bottom of the bottom beam 9 is provided with a plurality of evenly distributed casters 13, and the bottom of one bottom beam 9 is provided with a motor wheel 12, so that the movement of the gantry is facilitated, and the gantry is more portable when being carried.

Preferably, the bottom of the extension beam 10 is provided with casters 13 identical to the bottom of the bottom beam 9, which can increase the stability of the gantry chassis support.

Preferably, the top of the upper supporting beam 5 is fixedly provided with a jacking 19, the top beam 1 is fixed on the jacking 19, the upper reinforcing ribs 4 are arranged between the upper supporting beam 5 and the jacking 19, and the jacking 19 is arranged, so that the upper supporting beam 5 and the top beam 1 are conveniently connected.

When the portal frame is in use, the screw rod 16 is driven to rotate through the starting motor 18, the threaded shaft sleeve 14 is driven to move up and down relative to the screw rod 16, the middle column 6 fixed with the threaded shaft sleeve 14 drives the supporting upper beam 5 to slide up and down, the height of the top beam 1 is adjusted to a higher using position, the side reinforcing ribs 8 are arranged at the joint of the supporting lower beam 7 and the bottom beam 9, the extending beam 10 is formed by extending the outer side of the bottom beam 9, the auxiliary reinforcing ribs 11 are connected between the extending beam 10 and the supporting lower beam 7, when the portal frame is in use in a heightening mode, the placement stability of the whole portal frame structure is improved through increasing the area of the chassis and the strength of the joint of the chassis, the rising of the center of gravity of the portal frame is avoided when the portal frame is in use in a heightening mode, the unstable condition of use is caused, and the stability of the whole placement structure of the portal frame in the height-adjustable use is ensured under the condition of not using the height.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a hoist and mount operation is with adjustable high portal frame which characterized in that: including back timber (1), back timber (1) both ends bottom mounting has support upper beam (5), support upper beam (5) lower extreme is connected with support underbeam (7), support underbeam (7) bottom mounting has underbeam (9), support underbeam (7) slidable mounting has center pillar (6), center pillar (6) are fixed in the bottom of supporting upper beam (5), be equipped with in underbeam (9) drive center pillar (6) together with support upper beam (5) at support underbeam (7) internal gliding lifting unit, extension beam (10) are formed in the middle part outside extension of underbeam (9), be equipped with auxiliary reinforcement (11) between extension beam (10) and support underbeam (7), be equipped with between underbeam (9) and the support underbeam (7) side reinforcement (8), support upper beam (5) and roof beam (1) junction are equipped with upper reinforcement (4).

2. The adjustable height gantry for a lifting operation of claim 1, wherein: the lifting assembly comprises a screw rod (16), a threaded shaft sleeve (14) is fixedly arranged in the middle column (6), the screw rod (16) is installed on the threaded shaft sleeve (14) in a threaded mode, a bearing (17) is fixedly arranged in the supporting lower beam (7), one end of the screw rod (16) is rotatably installed on the bearing (17), a motor (18) is installed in the supporting lower beam (7), and the output end of the motor (18) is fixedly connected with the screw rod (16).

3. The adjustable height gantry for a lifting operation of claim 2, wherein: the top end of the screw rod (16) is fixedly provided with a limiting head (15), and the ruler diameter of the limiting head (15) is larger than the diameter of the screw rod (16).

4. The adjustable height gantry for a lifting operation of claim 1, wherein: the electric hoist (2) is slidably mounted on the top beam (1), and the output end of the electric hoist (2) is connected with a hook (3) through a steel rope.

5. The adjustable height gantry for a lifting operation of claim 1, wherein: the bottom of the bottom beam (9) is provided with a plurality of evenly distributed casters (13), and the bottom of one bottom beam (9) is provided with a motor wheel (12).

6. The adjustable height gantry for a lifting operation of claim 5, wherein: the bottom of the extension beam (10) is provided with casters (13) which are the same as the bottom of the bottom beam (9).

7. The adjustable height gantry for a lifting operation of claim 1, wherein: the top of the upper supporting beam (5) is fixedly provided with a jacking (19), the top beam (1) is fixed on the jacking (19), and the upper reinforcing rib (4) is arranged between the upper supporting beam (5) and the jacking (19).