CN113879975A

CN113879975A - Double-main-beam multi-lifting-point crane and working method thereof

Info

Publication number: CN113879975A
Application number: CN202111233779.8A
Authority: CN
Inventors: 梁大伟
Original assignee: Hefei Chunhua Hoisting Machinery Co Ltd
Current assignee: Hefei Chunhua Hoisting Machinery Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-01-04
Anticipated expiration: 2041-10-22
Also published as: CN113879975B

Abstract

The invention discloses a double-girder multi-lifting-point crane and a working method thereof, and relates to the technical field of cranes. The multi-hanging-point hanger can increase the connection points of the crane and the articles to be lifted and increase the stability when lifting larger articles, and is composed of two groups of box bodies, so that the multi-hanging-point hanger can be conveniently assembled with the connecting blocks by a user, and meanwhile, the multi-hanging-point hanger is provided with the reinforcing device, so that the overall stability of the multi-hanging-point hanger can be reinforced.

Description

Double-main-beam multi-lifting-point crane and working method thereof

Technical Field

The invention relates to the technical field of cranes, in particular to a double-main-beam multi-lifting-point crane and a working method thereof.

Background

The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, and most of the existing cranes lift the objects through hooks and move on a main beam through electric hoists when in work.

Through retrieval, the Chinese patent discloses a multi-hoisting-point crane (publication number: CN101607676B), which comprises a main beam, an operating mechanism, a lifting mechanism and an electric control system, wherein the operating mechanism comprises a bearing mechanism consisting of a roller device and an elastic body and a driving mechanism consisting of a motor, a speed reducer, a winding drum set, two groups of steel wire ropes, a pulley block and a pulley bracket; the hoisting mechanism comprises more than 2 sets of hoisting mechanisms arranged on each main beam, adopts a mode of multilayer winding and symmetrical rope descending of duplex drums and steel wire ropes, and adopts a mode of hinging or fixedly connecting a lifting hook connecting piece with a corresponding lifting hook group through a pin shaft respectively.

When the existing crane is suspended, single-point suspension is mostly adopted, some large-size articles are moved, and when the environment is poor, the articles can shake to a large extent, so that the lifting efficiency is low, and the safety is poor.

Disclosure of Invention

The invention aims to provide a double-main-beam multi-lifting-point crane and a working method thereof, and solves the following technical problems:

how to improve the stability when handling great volume article, prevent that it from appearing rocking by a relatively large margin to improve stability and security.

The purpose of the invention can be realized by the following technical scheme:

a double-main-beam multi-hoisting-point crane comprises two groups of door frames, wherein a double main beam is fixedly connected between the two groups of door frames, an electric hoist is arranged inside the double main beam, a connecting block is arranged at the bottom end of the electric hoist and comprises a connecting rope connected with the electric hoist, a hook is arranged at the bottom end of the connecting block, and a multi-hoisting-point hanger is arranged outside the hook;

many hanging point hangers are including the equipment case, the internally mounted of equipment case has a plurality of rolling ware, a plurality of the connecting piece is all installed to the rolling ware for be connected with article, the side-mounting of equipment case has a plurality of to be used for the spacing locking member of rolling ware, and the upside of equipment case installs the reinforcement ware, and the reinforcement ware is consolidated many hanging point hangers.

As a further scheme of the invention: the equipment case includes first box body and second box body, be formed with the draw-in groove between first box body and the second box body, through the draw-in groove, first box body and second box body can erect the both sides at the connecting block, and just first box body and second box body and couple between equal spiro union have a locking bolt.

As a further scheme of the invention: a plurality of the rolling ware is rectangle and evenly distributed in the inside of first box body and second box body to stability when can improving and be connected with article.

As a further scheme of the invention: the reinforcing device comprises a fixing box fixedly connected with the assembly box, the side face of the fixing box is slidably connected with a sliding pipe, the side face of the fixing box is in threaded connection with a locking block, one end of the sliding pipe extends to one side of the locking block in the fixing box, and the locking block is located on one side of the sliding track of the sliding pipe and used for preventing the sliding pipe from being blocked from moving.

As a further scheme of the invention: one end sliding connection of slip pipe has the extension pipe, the fixed pipe of side fixedly connected with of extension pipe, the outside of fixed pipe is rotated and is connected with the commentaries on classics roller.

As a further scheme of the invention: one end of the fixed pipe is rotatably connected with a limiting rod through a spiral spring and used for realizing automatic reset of the limiting rod.

As a further scheme of the invention: the winder all includes the roll body, the one end fixedly connected with fixed plate of roll body, a plurality of is annular embedded groove has been seted up to the side of fixed plate.

As a further scheme of the invention: the connecting hole that corresponds with the embedded groove is all seted up to one side that the equipment case side is close to the fixed plate, and the equipment case side lies in the equal fixedly connected with of middle part of every group embedded groove and extends to one side screwed pipe.

As a further scheme of the invention: the locking component comprises a ring body, and a plurality of clamping rods corresponding to the embedded grooves are fixedly connected to the side face of the ring body.

As a further scheme of the invention: the inside of ring body has seted up the intercommunication groove, the size in intercommunication groove is greater than the size of screw thread barrel for the outside at the screw thread barrel is established to the cover.

As a further scheme of the invention: the locking member includes a threaded sleeve for connection with a threaded pipe.

The invention also discloses a working method of the double-main-beam multi-lifting-point crane, which comprises the following steps:

the method comprises the following steps: assembling an assembly box of the multi-hanging-point hanger to the outer side of the connecting block, erecting a reinforcing device of the multi-hanging-point hanger to the outer side of a connecting rope of the connecting block, and finally locking and fixing the reinforcing device;

step two: assembling the hook with the articles to be lifted, then drawing out the connecting pieces outside each winder in the multi-lifting-point hanger, and respectively assembling the connecting pieces with the articles to be lifted;

step three: fixing the locking member and the winder in each multi-hanging-point hanger;

step four: and starting the electric hoist to hoist the articles.

The invention has the beneficial effects that:

according to the invention, through the multi-lifting-point hanger, the connection points of the crane and the articles to be lifted can be increased, so that the stability of lifting larger articles is increased;

meanwhile, the multi-hanging-point hanger consists of two groups of box bodies, so that a user can assemble the multi-hanging-point hanger with the connecting block conveniently, and meanwhile, the multi-hanging-point hanger is provided with a reinforcing device which is used for assembling the reinforcing device with the connecting rope of the connecting block and can reinforce the integral stability of the multi-hanging-point hanger by being sleeved outside the connecting rope;

on the other hand, a plurality of uniformly distributed windups are arranged in the multi-hanging-point hanger, each connecting piece is connected with an article by the windups, and the windups can be fixed by the locking components, so that the stability of the multi-hanging-point hanger during working can be kept;

in conclusion, the multi-hanging-point hanger is reasonable in structure and convenient to use, and can prevent articles from shaking to a large extent during hanging, so that the safety of the crane during working can be improved.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the multi-drop hanger of the present invention;

FIG. 3 is a top sectional view of the assembly box of the present invention;

FIG. 4 is a perspective view of the locking member of the present invention;

FIG. 5 is a partial perspective view of the retractor of the present invention;

in the figure: 1. a gantry; 2. a double main beam; 3. an electric hoist; 4. connecting blocks; 5. hooking; 6. a multi-point hanger; 61. an assembly box; 62. a stiffener; 63. a winder; 64. a locking member; 65. a connecting member; 621. a fixing box; 622. a sliding tube; 623. a locking block; 624. an extension pipe; 625. a fixed tube; 626. rotating the roller; 627. a limiting rod; 611. a first case; 612. a second box body; 613. locking the bolt; 614. a card slot; 641. a ring body; 642. a clamping rod; 643. a communicating groove; 631. a roller body; 632. a fixing plate; 633. and a groove is embedded.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the invention relates to a double-main-beam multi-hoisting-point crane, which comprises two groups of door frames 1, wherein a double main beam 2 is fixedly connected between the two groups of door frames 1, an electric hoist 3 is arranged inside the double main beam 2, a connecting block 4 is arranged at the bottom end of the electric hoist 3, the connecting block 4 comprises a connecting rope connected with the electric hoist 3, a hook 5 is arranged at the bottom end of the connecting block 4, and a multi-hoisting-point hanger 6 is arranged outside the hook 5;

many hanging point hanger 6 is including assembling case 61, and the internally mounted of assembling case 61 has a plurality of rolling ware 63, and connecting piece 65 is all installed to a plurality of rolling ware 63 for be connected with article, and the side-mounting of assembling case 61 has a plurality of to be used for the spacing locking member 64 of rolling ware 63, and the upside of assembling case 61 installs reinforcement 62, and reinforcement 62 consolidates many hanging point hanger 6.

The reinforcing device 62 comprises a fixed box 621 fixedly connected with the assembly box 61, a sliding tube 622 is slidably connected to the side of the fixed box 621, a locking block 623 is threadedly connected to the side of the fixed box 621, one end of the sliding tube 622 extends to one side of the locking block 623 in the fixed box 621, and the locking block 623 is located at one side of the sliding track of the sliding tube 622 and used for preventing the sliding tube 622 from being blocked from moving.

An extension pipe 624 is slidably connected to one end of the sliding pipe 622, a fixed pipe 625 is fixedly connected to a side surface of the extension pipe 624, and a rotating roller 626 is rotatably connected to an outer side of the fixed pipe 625.

One end of the fixed tube 625 is rotatably connected with a limit rod 627 through a helical spring for realizing the automatic reset of the limit rod 627.

Referring to fig. 3, the assembly box 61 includes a first box 611 and a second box 612, a locking groove 614 is formed between the first box 611 and the second box 612, the first box 611 and the second box 612 can be erected on two sides of the connecting block 4 through the locking groove 614, and a locking bolt 613 is screwed between the hook 5 and each of the first box 611 and the second box 612.

Please refer to fig. 5, a plurality of winding devices 63 are rectangular and are uniformly distributed inside the first box body 611 and the second box body 612, so as to improve the stability when being connected with the articles, the winding devices 63 all include a roller body 631, one end of the roller body 631 is fixedly connected with a fixing plate 632, a plurality of annular embedded grooves 633 are formed in the side surface of the fixing plate 632, a connecting hole corresponding to the embedded groove 633 is formed in one side surface of the assembly box 61 close to the fixing plate 632, and the middle portion of the side surface of the assembly box 61 located in each embedded groove 633 is fixedly connected with a threaded pipe extending to one side.

Referring to fig. 4, the locking member 64 includes a ring body 641, a plurality of clamping rods 642 corresponding to the insertion grooves 633 are fixedly connected to a side surface of the ring body 641, a communication groove 643 is formed in the ring body 641, the size of the communication groove 643 is larger than that of the threaded barrel for being sleeved on an outer side of the threaded barrel, and the locking member 64 includes a threaded sleeve for being connected with a threaded pipe.

The working principle of the invention is as follows:

assembling the assembling box 61 of the multi-hanging-point hanger 6 to the outside of the connecting block 4, during the assembling, respectively installing the first box 611 and the second box 612 of the assembling box 61 to the two sides of the connecting block 4, assembling the first box 611 and the second box 612 with the connecting block 4 through the locking bolt 613, erecting the reinforcing device 62 of the multi-hanging-point hanger 6 to the outside of the connecting rope of the connecting block 4, sliding the sliding tube 622 of the reinforcing device 62 along the fixing box 621, sliding the rotating roller 626 to one side of the connecting rope of the hook 5, sliding the sliding tube 622 reversely, moving the rotating roller 626 to one side of the connecting rope, rotating the limiting rod 627 through the spiral spring to prevent the connecting rope from being blocked, and then screwing the locking block 623 to lock and fix the reinforcing device 62;

assembling the hook 5 with the articles to be lifted, then drawing out the connecting pieces 65 outside the rolling devices 63 in the multi-lifting-point hanger 6, and respectively assembling the connecting pieces with the articles to be lifted;

the locking member 64 and the winder 63 in each multi-hanging-point hanger 6 are fixed, when the fixing is carried out, the clamping rod 642 of the locking member 64 penetrates through the connecting hole on the side face of the assembly box 61 and is installed in the embedding groove 633 of the winder 63, when the fixing is not carried out, the winder 63 can be properly rotated, the communicating groove 643 of the locking member 64 is sleeved on the outer side of the corresponding threaded barrel of the assembly box 61 when the fixing is carried out, finally, the threaded sleeves of the locking member 64 are respectively assembled with the threaded barrels, the locking member 64 is fixed, and finally, the electric hoist 3 is started, so that the articles can be hoisted.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A double-main-beam multi-lifting-point crane comprises two groups of door frames (1), a double main beam (2) is fixedly connected between the two groups of door frames (1), an electric hoist (3) is installed inside the double main beam (2), and a hook (5) is installed at the bottom end of the electric hoist (3) through a connecting block (4), and is characterized in that a multi-lifting-point hanger (6) is installed on the outer side of the hook (5);

many hoisting points hanger (6) are including equipment case (61), the internally mounted of equipment case (61) has a plurality of rolling ware (63), and connecting piece (65) are all installed to a plurality of rolling ware (63), the side-mounting of equipment case (61) has a plurality of to be used for to spacing locking member (64) of rolling ware (63), and the upside of equipment case (61) installs reinforcement ware (62).

2. The double-girder multi-lifting-point crane according to claim 1, wherein the assembly box (61) comprises a first box body (611) and a second box body (612), a clamping groove (614) is formed between the first box body (611) and the second box body (612), and locking bolts (613) are screwed between the first box body (611) and the hook (5) and between the second box body (612) and the hook (5).

3. The double-girder multi-lifting-point crane according to claim 2, wherein the plurality of windups (63) are rectangular and uniformly distributed inside the first box (611) and the second box (612).

4. The double-girder multi-lifting-point crane according to claim 1, wherein the reinforcing device (62) comprises a fixed box (621) fixedly connected with the assembly box (61), a sliding pipe (622) is slidably connected to the side of the fixed box (621), a locking block (623) is threadedly connected to the side of the fixed box (621), and one end of the sliding pipe (622) extends to one side of the locking block (623) in the fixed box (621).

5. The double-girder multi-lifting-point crane according to claim 4, wherein one end of the sliding pipe (622) is slidably connected with an extension pipe (624), a fixed pipe (625) is fixedly connected to the side surface of the extension pipe (624), and a rotating roller (626) is rotatably connected to the outer side of the fixed pipe (625).

6. The double-main-beam multi-lifting-point crane according to claim 5, wherein one end of the fixed pipe (625) is rotatably connected with a limiting rod (627) through a helical spring.

7. The double-main-beam multi-hoisting-point crane according to claim 1, wherein the winding devices (63) each comprise a roller body (631), one end of the roller body (631) is fixedly connected with a fixing plate (632), and a plurality of annular embedded grooves (633) are formed in the side surface of the fixing plate (632).

8. The double-main-beam multi-hanging-point crane according to claim 7, wherein one side of the side surface of the assembly box (61) close to the fixing plate (632) is provided with a connecting hole corresponding to the embedded groove (633), and a threaded pipe extending to one side is fixedly connected to the side surface of the assembly box (61) in the middle of each group of embedded grooves (633).

9. The double-main-beam multi-suspension-point crane according to claim 7, wherein the locking member (64) comprises a ring body (641), a plurality of clamping rods (642) corresponding to the embedded grooves (633) are fixedly connected to the side surface of the ring body (641), and a communication groove (643) is formed in the ring body (641).

10. The working method of the double-main-beam multi-lifting-point crane is characterized by comprising the following steps of:

the method comprises the following steps: assembling an assembling box (61) of the multi-hanging-point hanger (6) to the outer side of the connecting block (4), erecting a reinforcing device (62) of the multi-hanging-point hanger (6) to the outer side of a connecting rope of the connecting block (4), and finally locking and fixing the reinforcing device (62);

step two: assembling the hook (5) with the articles to be lifted, then drawing out the connecting pieces (65) outside each rolling device (63) in the multi-lifting-point hanger (6), and respectively assembling with the articles to be lifted;

step three: fixing the locking member (64) and the winder (63) in each multi-hanging-point hanger (6);

step four: and starting the electric hoist (3) to hoist the articles.