CN216918404U

CN216918404U - Counterweight device for crane and crane

Info

Publication number: CN216918404U
Application number: CN202220428699.1U
Authority: CN
Inventors: 杨熠; 肖春良; 刘志刚
Original assignee: Hunan Zoomlion Crawler Crane Co Ltd
Current assignee: Hunan Zoomlion Crawler Crane Co Ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-07-08
Anticipated expiration: 2032-03-01

Abstract

The utility model provides a counterweight device for a crane and the crane, wherein the counterweight device for the crane comprises a hoisting mechanism, a counterweight base and a first counterweight block, the hoisting mechanism is connected with the crane, the counterweight base comprises a seat body hoisted on the hoisting mechanism and a first hoisting assembly arranged on the seat body, the first counterweight block is detachably connected with the first hoisting assembly and is arranged below the seat body, so that the seat body can be moved to a specified position by means of equipment of the crane, then the first hoisting assembly and the first counterweight block are disassembled and assembled, the weight increment or weight reduction of the counterweight device for the crane can be completed, the intervention of auxiliary hoisting equipment is not needed, the loading and unloading steps of the first counterweight block are simplified, and the aims of improving the operation efficiency of the crane and saving time and labor can be achieved.

Description

Counterweight device for crane and crane

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a counterweight device for a crane and the crane.

Background

Large tonnage cranes are often equipped with a super lift device, which mainly comprises a truss type super lift mast and a super lift counterweight, to improve the lifting performance of the crane. When the heavy object is hoisted, the super-hoisting counterweight is hung on the super-hoisting mast, so that the crane keeps balance when the heavy object is hoisted. The existing super-lift counterweight comprises a counterweight bracket and counterweight blocks stacked on the counterweight bracket, and the weight of each counterweight block is different from 5 tons to 10 tons. When the operating mode of hoist changes, need carry out the demand of dismouting in order to satisfy current operating mode to the balancing weight on the counter weight base through supplementary hoisting equipment. The balancing weight that stacks on the counter weight bracket is more under general super-lift operating mode, and supplementary hoisting equipment can only lift by crane one to two balancing weights at every turn, consequently loads and unloads the balancing weight and can be consuming time more, seriously influences hoist operating efficiency.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects or shortcomings, the utility model provides a counterweight for a crane and the crane, and aims to solve the technical problems that the conventional crane needs auxiliary hoisting equipment to increase or disassemble a counterweight block on a super-lifting counterweight, so that the disassembling process is time-consuming and low in efficiency.

In order to achieve the above object, the present invention provides a counterweight device for a crane, wherein the counterweight device for a crane comprises a hoisting mechanism, a counterweight base and a first counterweight block; the hoisting mechanism is used for being connected with a crane; the counterweight base comprises a base body hoisted on the hoisting mechanism and a first hoisting assembly arranged on the base body; the first balancing weight and the first hoisting component are detachably connected and are arranged below the seat body.

In the embodiment of the utility model, the counterweight base further comprises a second hoisting component, the first hoisting component and the second hoisting component are respectively arranged at two opposite ends of the base body, and two opposite ends of the first counterweight block are respectively detachably connected with the first hoisting component and the second hoisting component in a one-to-one correspondence manner.

In the embodiment of the utility model, the first hoisting assembly and the second hoisting assembly respectively comprise a pulling plate and a first connecting pin, the upper end of the pulling plate is connected with the base body, and the lower end of the pulling plate is detachably connected with the first balancing weight through the first connecting pin.

In the embodiment of the utility model, two opposite ends of the first balancing weight extend out of the seat body and are respectively provided with the first hoisting lug plates, the pulling plate and the corresponding first hoisting lug plates are arranged on the same side, and the lower end of the pulling plate is connected with the first hoisting lug plates through the first connecting pin.

In the embodiment of the utility model, the first hoisting assembly and the second hoisting assembly respectively comprise a second connecting pin, the seat body is provided with a second hoisting lug plate, and the pulling plate is connected with the second hoisting lug plate through the second connecting pin.

In the embodiment of the utility model, the pulling plate comprises a first plate body and a second plate body which are arranged in a split manner, the lower ends of the first plate body and the second plate body are respectively arranged at two sides of the first hoisting lug plate, and the first connecting pin sequentially penetrates through the first plate body, the first hoisting lug plate and the second plate body; the upper ends of the first plate body and the second plate body are respectively arranged on two sides of the second hoisting lug plate, and the second connecting pin sequentially penetrates through the first plate body, the second hoisting lug plate and the second plate body.

In the embodiment of the utility model, the number of the first balancing weights is at least two, the at least two first balancing weights are sequentially arranged along the length direction of the bottom wall of the seat body, and the at least two first balancing weights are respectively connected with the seat body through the first hoisting assembly.

In an embodiment of the utility model, the hoisting mechanism comprises a sling, a hoisting cylinder and a connecting frame, the sling is used for being connected with a mast of the crane, the connecting frame is arranged on the top wall of the seat body, and the hoisting cylinder is arranged on the connecting frame and is connected with the sling.

In an embodiment of the present invention, the counterweight device for crane further includes a second counterweight block, and the second counterweight block is disposed on the top wall of the seat body.

In order to achieve the above object, the present invention further provides a crane, wherein the crane comprises the counterweight device for crane as described above.

Through the technical scheme, the counterweight device for the crane provided by the embodiment of the utility model has the following beneficial effects:

when the crane uses the counterweight device, the first counterweight block can be connected with the first hoisting assembly in a detachable mode and hoisted below the seat body, when the counterweight device needs to increase weight, the seat body can be arranged above the first counterweight block through the crane self equipment, then the first hoisting assembly is connected with the first counterweight block, the weight can be increased after the weight is increased, when the counterweight device needs to reduce weight, the counterweight base with the first counterweight block is moved to a specified position through the crane self equipment, at the moment, only the first hoisting assembly needs to be dismantled from being connected with the first counterweight block, and weight reduction can be achieved. The counterweight device for the crane can complete the installation and the disassembly of the first counterweight block only by the self equipment of the crane, does not need the intervention of auxiliary hoisting equipment, and simplifies the installation and disassembly steps of the first counterweight block, thereby achieving the purposes of improving the operation efficiency of the crane and saving time and labor.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural view from one perspective of a counterweight device for a crane according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A of FIG. 1 in an embodiment in accordance with the utility model;

FIG. 3 is a schematic structural view of a pulling plate, a first connecting pin and a second connecting pin according to an embodiment of the present invention;

description of the reference numerals

1 hoisting mechanism 11 suspension cable

12 lifting oil cylinder 13 connecting frame

2 counterweight base 21 seat body

211 second lifting lug 22 first lifting assembly

23 second hoisting assembly 24 pulling plate

241 first plate 242 second plate

25 first connecting pin 26 second connecting pin

3 first counterweight 31 first lifting ear plate

32 grooves

Detailed Description

The following detailed description of specific embodiments of the utility model refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the utility model and are not restrictive thereof.

The following describes a crane counterweight device according to the present invention with reference to the drawings.

As shown in fig. 1, the present invention provides a counterweight device for a crane, wherein the counterweight device for a crane includes:

the hoisting mechanism 1 is used for being connected with a crane;

the counterweight base 2 comprises a base body 21 hoisted on the hoisting mechanism 1 and a first hoisting component 22 arranged on the base body 21; and

the first balancing weight 3 is detachably connected with the first hoisting component 22 and is arranged below the seat body 21.

When the crane uses the counterweight device, the first counterweight block 3 can be hoisted below the seat body 21 through the detachable connection with the first hoisting component 22, then when the counterweight device needs to increase weight, the seat body 21 can be arranged above the first counterweight block 3 through the crane self equipment, then the first hoisting component 22 is connected with the first counterweight block 3, weight increase can be completed at the moment, when the counterweight device needs to reduce weight, the counterweight base 2 with the first counterweight block 3 is moved to a specified position through the crane self equipment, at the moment, only the connection of the first hoisting component 22 and the first counterweight block 3 needs to be removed, and weight reduction can be realized. The counterweight device for the crane provided by the utility model can finish the installation and the disassembly of the first counterweight block 3 only by the self equipment of the crane, does not need the intervention of auxiliary hoisting equipment, and simplifies the installation and disassembly steps of the first counterweight block 3, thereby achieving the purposes of improving the operation efficiency of the crane and saving time and labor.

As shown in fig. 1, in the embodiment of the present invention, the counterweight base 2 further includes a second hoisting component 23, the first hoisting component 22 and the second hoisting component 23 are respectively disposed at two opposite ends of the base body 21, and two opposite ends of the first counterweight block 3 are detachably connected with the first hoisting component 22 and the second hoisting component 23 in a one-to-one correspondence manner. The first balancing weight 3 is usually a square iron block, and the first hoisting component 22 and the second hoisting component 23 are respectively arranged at the two opposite ends of the seat body 21 so as to hoist the two opposite ends of the first balancing weight 3 respectively, so that the first balancing weight 3 can be more stable when being hoisted.

As shown in fig. 1 and 2, in the embodiment of the present invention, each of the first hoisting assembly 22 and the second hoisting assembly 23 includes a pulling plate 24 and a first connecting pin 25, the upper end of the pulling plate 24 is connected to the seat body 21, and the lower end of the pulling plate 24 is detachably connected to the first counterweight block 3 through the first connecting pin 25, wherein the first hoisting assembly 22 and the second hoisting assembly 23 have the same structure and are symmetrically disposed at two opposite ends of the seat body 21, the two opposite ends of the first counterweight block 3 are respectively provided with a pin hole, the pin holes at the two ends respectively correspond to the first connecting pins 25 of the first hoisting assembly 22 and the second hoisting assembly 23, and the first connecting pin 25 sequentially penetrates through the corresponding pin holes on the pulling plate 24 and the first counterweight block 3, so as to facilitate the installation of the first counterweight block 3. Meanwhile, in order to prevent the play of the first connecting pin 25, a spring latch may be provided on the first connecting pin 25. Of course, the first hoisting assembly 22 and the second hoisting assembly 23 may also be connected to the first counterweight block 3 through other connecting members, such as an iron chain, a bolt, and the like.

As shown in fig. 1 and fig. 2, in the embodiment of the present invention, opposite ends of the first balancing weight 3 extend out of the seat body 21 and are respectively provided with first lifting lugs 31, the pulling plate 24 is disposed on the same side as the corresponding first lifting lugs 31, and the lower end of the pulling plate 24 is connected to the first lifting lugs 31 through the first connecting pin 25. Wherein, the first lifting ear plates 31 are symmetrically distributed at two opposite sides of the first balancing weight 3. And all seted up on the first hoist and mount otic placode 31 of both sides and supplied first connecting pin 25 male bolt hole, set up first hoist and mount otic placode 31 respectively through the both sides at first balancing weight 3 promptly, enable first balancing weight 3 to be connected with arm-tie 24 more conveniently, simultaneously because first hoist and mount otic placode 31 sets up in the region that stretches out in seat body 21, make things convenient for manual work installation and dismantlement, and can make arm-tie 24 more firm when connecting first balancing weight 3, furtherly, recess 32 has been seted up to relative both ends on the first balancing weight 3, first hoist and mount otic placode 31 is located recess 32 respectively, and the top of first hoist and mount otic placode 31 is less than the roof of first balancing weight 3, thereby guarantee the planarization of the roof of first balancing weight 3, make things convenient for the roof of first balancing weight 3 and the laminating of the diapire of seat body 21.

As shown in fig. 1 and 2, in the embodiment of the present invention, each of the first hoisting assembly 22 and the second hoisting assembly 23 further includes a second connecting pin 26, the seat body 21 is provided with a second hoisting ear plate 211, the pull plate 24 is connected to the second hoisting ear plate 211 through the second connecting pin 26, and the second hoisting ear plates 211 are respectively provided at two opposite ends of the seat body 21, so as to achieve detachable connection between the first hoisting assembly 22 and the second hoisting assembly 23 and the seat body 21, and meanwhile, under the condition that the first balancing weight 3 is hoisted, it is ensured that two ends of the seat body 21 are uniformly stressed. Specifically, all be provided with a plurality of second hoist and mount otic placodes 211 on the two relative lateral walls of seat body 21 to a plurality of second hoist and mount otic placodes 211 on every lateral wall set up along the length direction of the lateral wall of seat body 21 interval in proper order, thereby can make the seat body can hoist more first balancing weights 3.

As shown in fig. 3, in the embodiment of the present invention, the pulling plate 24 includes a first plate 241 and a second plate 242 that are separately arranged, lower ends of the first plate 241 and the second plate 242 are respectively arranged at two sides of the first lifting lug 31, and the first connecting pin 25 sequentially passes through the first plate 241, the first lifting lug 31, and the second plate 242; the upper ends of the first plate 241 and the second plate 242 are respectively disposed at two sides of the second lifting ear plate 211, and the second connecting pin 26 sequentially passes through the first plate 241, the second lifting ear plate 211 and the second plate 242. That is, the first plate 241 and the second plate 242 can increase the stability of the connection between the first weight block 3 and the seat body 21, and prevent the first weight block 3 from being connected and loosened due to the play of the first connecting pin 25 or the second connecting pin 26. And when the pulling plate 24 is stressed, the pulling force of the first balancing weight 3 on the pulling plate 24 is uniformly distributed by the first plate body 241 and the second plate body 242, so that the connection reliability of the pulling plate 24 is improved.

In the embodiment of the present invention, the number of the first balancing weights 3 is at least two, at least two first balancing weights 3 are sequentially arranged along the length direction of the bottom wall of the seat body 21, and at least two first balancing weights 3 are respectively connected to the seat body 21 through the first hoisting assembly 22. Wherein the quantity of first hoist and mount subassembly 22 is a plurality of to the relative other end of seat body 21 also is provided with a plurality of second hoist and mount otic placodes 211 simultaneously, consequently can connect a plurality of first balancing weights 3 respectively through a plurality of first hoist and mount subassemblies 22 and a plurality of second hoist and mount subassembly 23 to this increases the scope that counter weight device for the hoist's weight was adjusted, thereby enables counter weight device for the hoist and adapts to more hoisting operating mode.

As shown in fig. 1, in the embodiment of the present invention, the lifting mechanism 1 includes a sling 11, a lifting cylinder 12, and a connecting frame 13, the sling 11 is used for connecting with a mast of a crane, the connecting frame 13 is disposed on a top wall of a seat body 21, and the lifting cylinder 12 is mounted on the connecting frame 13 and connected with the sling 11. The upper end of the sling 11 is connected with the top end of the mast, the lower end of the sling is connected with the lifting oil cylinder 12, the lifting oil cylinder 12 can realize the lifting of the counterweight base 2, the body of the crane can realize circumferential rotation, and the counterweight base 2 and the first counterweight block 3 connected to the counterweight base 2 can be placed at any position in a certain range around the body through the self action of the crane.

In the embodiment of the utility model, the counterweight device for the crane further comprises a second counterweight block, the second counterweight block is arranged on the top wall of the seat body 21, and when the first counterweight block 3 arranged on the bottom wall of the seat body 21 is difficult to meet the current hoisting working condition, a certain number of second counterweight blocks are pre-installed on the top wall of the seat body 21, and then the first counterweight block 3 is additionally installed or detached so as to adjust the weight of the counterweight device for the crane.

In addition, the utility model also provides a crane, wherein the crane comprises the crane counterweight device. Since the crane adopts all the technical solutions of the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A counterweight device for a crane, characterized by comprising:

the hoisting mechanism (1) is used for being connected with a crane;

the counterweight base (2) comprises a base body (21) hoisted on the hoisting mechanism (1) and a first hoisting component (22) arranged on the base body (21); and

the first balancing weight (3) is detachably connected with the first hoisting component (22) and is arranged below the seat body (21).

2. The counterweight device for the crane according to claim 1, wherein the counterweight base (2) further comprises a second hoisting assembly (23), the first hoisting assembly (22) and the second hoisting assembly (23) are respectively disposed at two opposite ends of the base body (21), and two opposite ends of the first counterweight block (3) are respectively detachably connected with the first hoisting assembly (22) and the second hoisting assembly (23) in a one-to-one correspondence manner.

3. The counterweight device for cranes according to claim 2, characterized in that each of the first hoisting assembly (22) and the second hoisting assembly (23) comprises a pulling plate (24) and a first connecting pin (25), the upper end of the pulling plate (24) is connected with the seat body (21), and the lower end of the pulling plate (24) is detachably connected with the first counterweight (3) through the first connecting pin (25).

4. The counterweight device for crane according to claim 3, wherein opposite ends of the first counterweight block (3) extend out of the seat body (21) and are respectively provided with first hoisting lug plates (31), the pulling plate (24) is arranged on the same side as the corresponding first hoisting lug plates (31), and the lower end of the pulling plate (24) is connected with the first hoisting lug plates (31) through the first connecting pin (25).

5. The counterweight device for the crane according to claim 4, wherein each of the first hoisting assembly (22) and the second hoisting assembly (23) further comprises a second connecting pin (26), the seat body (21) is provided with a second hoisting lug plate (211), and the pulling plate (24) is connected with the second hoisting lug plate (211) through the second connecting pin (26).

6. The counterweight device for the crane according to claim 5, wherein the pulling plate (24) comprises a first plate body (241) and a second plate body (242) which are separately arranged, the lower ends of the first plate body (241) and the second plate body (242) are respectively arranged at two sides of the first lifting lug plate (31), and the first connecting pin (25) sequentially penetrates through the first plate body (241), the first lifting lug plate (31) and the second plate body (242); first plate body (241) with the upper end of second plate body (242) is located the both sides of second hoist and mount otic placode (211), just second connecting pin (26) pass in proper order first plate body (241) second hoist and mount otic placode (211) with second plate body (242).

7. The counterweight device for crane according to any one of claims 1 to 6, wherein the number of said first counterweights (3) is at least two, at least two of said first counterweights (3) are sequentially arranged along the length direction of the bottom wall of said seat body (21), and at least two of said first counterweights (3) are respectively connected with said seat body (21) through said first hoisting assembly (22).

8. The counterweight device for cranes according to any one of claims 1 to 6, characterized in that the hoisting mechanism (1) comprises a sling (11), a lifting cylinder (12) and a connecting frame (13), the sling (11) being intended to be connected to the mast of the crane, the connecting frame (13) being provided on the top wall of the seat body (21), the lifting cylinder (12) being mounted on the connecting frame (13) and being connected to the sling (11).

9. Counterweight device according to any one of claims 1 to 6, characterized in that it also comprises a second counterweight placed on the top wall of said seat body (21).

10. A crane, characterized in that the crane comprises a crane counterweight according to any one of claims 1-9.