CN211813140U - A kind of crane counterweight structure and truck-mounted crane - Google Patents

Abstract

The utility model relates to the technical field of crane equipment, and discloses a crane counterweight structure and a truck-mounted crane, comprising a counterweight bracket and a positioning hole group arranged on a crane turntable. A counterweight body on a frame body, the frame body is provided with a fixing hole group that can cooperate with the positioning hole group, and a fixing pin is inserted between the positioning hole group and the fixing hole group to connect; it also includes a set on the carriage The swing cylinder support and the support cylinder support are hingedly connected with a support cylinder, and the support cylinder includes a cylinder body and a support end that can be extended and retracted in the cylinder body, and the support end can be vertically To support the frame body, a swing oil cylinder is hingedly connected between the cylinder body and the swing oil cylinder support to drive the support oil cylinder to swing. The utility model facilitates the rapid installation of the counterweight on the truck-mounted crane and improves the safety of the truck-mounted crane.

Description

A kind of crane counterweight structure and truck-mounted crane

technical field

The utility model relates to the technical field of crane equipment, in particular to a crane counterweight structure and a truck-mounted crane.

Background technique

In engineering construction, there are more and more occasions where large-tonnage truck-mounted cranes are used. The simple structure of the truck-mounted crane is to install a crane on the truck compartment. The advantage of the truck-mounted crane is that the lifted heavy objects can be directly placed in the truck compartment, and can be transported directly by the truck-mounted crane without the need to find another truck. to transport. This also limits the lifting capacity of the truck-mounted crane, and the size and weight of the heavy objects that the truck-mounted crane can lift are greatly reduced. The purpose of the truck crane is to lift heavy objects alone, and the weight and size of the heavy objects that can be lifted are larger than the size and weight of the heavy objects that can be lifted by the truck-mounted crane.

Correspondingly, the tonnage of truck mounted cranes is also getting larger and larger, but most of the existing large tonnage truck mounted cranes are not equipped with special counterweights at the back like truck cranes, so when the truck mounted crane is working, it is necessary to look for it on site. A weight that can be used as a counterweight to balance the entire body of the truck-mounted crane, for example, press the forklift as a counterweight to the front of the carriage when there is a forklift nearby. However, if there is no suitable weight used as a counterweight, the lifting capacity of the truck-mounted crane is limited.

Utility model content

The purpose of the utility model is to provide a crane counterweight structure and a truck-mounted crane, which can improve the lifting capacity and safety of the truck-mounted crane.

In order to achieve the above purpose, the present utility model provides a crane counterweight structure and a truck-mounted crane, comprising a counterweight bracket and a positioning hole group arranged on the crane turntable, the counterweight bracket comprising a frame body and connected to the frame body The frame body is provided with a fixing hole group that can cooperate with the positioning hole group, and a fixing pin is inserted between the positioning hole group and the fixing hole group to connect.

As a preferred solution, it also includes a swing oil cylinder support and a support oil cylinder support provided on the carriage, and a support oil cylinder is hingedly connected to the support oil cylinder support, and the support oil cylinder includes a cylinder body and can be telescopic in the cylinder body. The support end can vertically support the frame body, and a swing oil cylinder is hingedly connected between the cylinder body and the swing oil cylinder support to drive the support oil cylinder to swing.

As a preferred solution, it also includes a counterweight telescopic oil cylinder, two ends of the counterweight telescopic oil cylinder are hingedly connected to the counterweight body and the frame body, respectively, and the counterweight telescopic oil cylinder is horizontally arranged to push the counterweight body on the frame. Movement back and forth in the body.

As a preferred solution, the counterweight body includes a fixed counterweight body, a counterweight block positioning column is connected to the top of the fixed counterweight body, and a standard counterweight block can be positioned on the counterweight block positioning column.

As a preferred solution, the counterweight telescopic oil cylinder is hingedly connected to the fixed counterweight body.

As a preferred solution, the positioning hole group includes a first positioning hole and a second positioning hole, and the fixing hole group includes a first positioning hole and a second positioning hole corresponding to the first positioning hole and the second positioning hole. .

As a preferred solution, the number of the counterweight block positioning columns is two.

The utility model also provides a truck-mounted crane with the crane counterweight structure described in any one of the above.

The utility model provides a crane counterweight structure. The counterweight bracket is installed on the turntable of the truck-mounted crane, so that the truck-mounted crane can pass the counterweight body of the counterweight bracket. The counterweight is installed on-site on the truck-mounted crane, which is convenient to use.

Further, when the utility model is in use, the swinging oil cylinder drives the supporting oil cylinder to rotate, so that the supporting oil cylinder reaches the vertical position, the counterweight bracket is placed on the supporting oil cylinder by the lifting function of the truck-mounted crane itself, and the turntable of the truck-mounted crane is rotated. To the position where the counterweight bracket is installed, operate the support cylinder to lift the counterweight bracket, so that the counterweight bracket reaches the installation position. By installing the fixed hole group and the positioning hole group, it is more convenient to install the counterweight on the truck-mounted crane.

The utility model also provides a crane counterweight structure with the above-mentioned structure, which is convenient for quick installation on site and improves the stability and lifting capacity of the truck-mounted crane.

Description of drawings

1 is a schematic structural diagram of a crane counterweight structure in an installed state in an embodiment of the present invention;

2 is a schematic structural diagram of the crane counterweight structure in the embodiment of the present invention at the end of the installation process;

Fig. 3 is the structural schematic diagram of the crane counterweight structure in the installation process in the embodiment of the present invention;

Fig. 4 is the top-view structure schematic diagram of the completed state of the installation of the counterweight structure of the crane in the embodiment of the present invention;

In the figure, 100, crane turntable; 110, positioning hole group; 111, first positioning hole; 112, second positioning hole; 120, fixing pin; 200, counterweight bracket; 210, frame body; 211, bottom plate; 212, side plate; 220, fixing hole group; 221, first fixing hole; 222, second fixing hole; 300, counterweight body; 310, fixed counterweight body; 311, counterweight block positioning column; 320, standard counterweight block; 400 410, swing cylinder support; 420, support cylinder support; 430, support cylinder; 431, cylinder block; 432, support end; 440, swing cylinder; 500, counterweight telescopic cylinder.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

As shown in FIGS. 1 to 4 , a crane counterweight structure and a truck-mounted crane according to a preferred embodiment of the present invention are convenient for installation in the carriage of the truck-mounted crane, which is convenient and fast, and at the same time, the stability of the truck-mounted crane can be improved. and security.

Based on the above technical solutions, this embodiment provides a crane counterweight structure, including a counterweight bracket 200 and a positioning hole group 110 provided on the crane turntable 100 , wherein the counterweight bracket 200 is installed on the crane turntable 100 during use , the positioning hole group 110 is used to install the counterweight bracket 200, which can improve the stability of the truck-mounted crane.

Specifically, the counterweight support 200 includes a frame body 210 and a counterweight body 300 connected to the frame body 210. The counterweight body 300 is the main weight used as a counterweight in the counterweight structure of the crane. The counterweight bracket 200 is directly used as a counterweight as a whole in use.

Specifically, the frame body 210 of the counterweight bracket 200 is provided with a fixing hole group 220 that can cooperate with the positioning hole group 110 . During installation, the counterweight bracket 200 is installed on the crane turntable 100 by inserting the fixing pin 120 between the positioning hole group 110 and the fixing hole group 220 to connect.

The frame body 210 includes a bottom plate 211 and a side plate 212 vertically connected to the bottom plate. A fixing hole group 220 is provided on the side plate 212, and the fixing hole group 220 is used as a fixing hole.

Preferably, the present invention further includes a swing cylinder support 410 and a support cylinder support 420 arranged on the carriage 400 . Wherein, the swinging oil cylinder support 410 and the supporting oil cylinder support 420 may be connected to the bottom of the carriage 400 by welding or bolting.

Specifically, a supporting oil cylinder 430 is hingedly connected to the supporting oil cylinder support 420 , and the supporting oil cylinder 430 includes a cylinder block 431 and a supporting end 432 that can expand and contract in the cylinder body 431 . Internal expansion.

Specifically, the support end 432 can support the frame body 210 vertically, and a swing oil cylinder 440 is hingedly connected between the cylinder block 431 and the swing oil cylinder support 410 to drive the support oil cylinder 430 to swing. This structure enables the utility model to place the support cylinder 430 and the swing cylinder 440 horizontally in the carriage 400 when no counterweight is required, thereby saving space at the support cylinder 430 and the swing cylinder 440 in the carriage 400 . When installing the counterweight, the supporting oil cylinder 430 is driven to swing by the swinging oil cylinder 440, and the supporting end 432 vertically supports the frame body 210, so that the frame body 210 and the counterweight body 300 in the frame body 210 can be installed on the crane turntable 100, which is convenient for the On-site installation.

As shown in FIGS. 1 to 3 , when installing the frame body 210 , the frame body 210 is first hoisted through the crane turntable 100 , the boom of the crane turntable 100 is controlled to reach the side where the positioning hole group 110 is located, and the frame body 210 is placed on the support cylinder 430 Then, the crane turntable 100 is controlled to rotate, and the boom of the crane turntable 100 is controlled to reach the opposite side of the positioning hole group 110 , so that the positioning hole group 110 is aligned with the fixing hole group 220 of the frame body 210 . Then, the supporting oil cylinder 430 is controlled to drive the frame body 210 and the counterweight body 300 to rise, and the frame body 210 is installed on the positioning hole group 110. The disassembly of the frame body 210 can also be carried out according to this process, so that the present invention can be installed and disassembled extremely well on site. convenient.

Preferably, the counterweight telescopic oil cylinder 500 is also included, and the telescopic oil cylinder 500 is used to improve the use effect of the counterweight body 300 . Specifically, both ends of the counterweight telescopic oil cylinder 500 are hingedly connected to the counterweight body 300 and the frame body 210 respectively, that is, one end of the counterweight telescopic oil cylinder 500 can be hingedly connected to the bottom plate 211 .

The counterweight telescopic cylinder 500 is arranged horizontally to push the counterweight body 300 to move back and forth in the frame body 210 , so as to adjust the length of the lever arm when the counterweight body 300 acts, thereby improving the counterweight capacity of the counterweight body 300 .

Preferably, the counterweight body 300 includes a fixed counterweight body 310 , a counterweight block positioning column 311 is connected to the top of the fixed counterweight body 310 , and a standard counterweight block 320 can be positioned on the counterweight block positioning column 311 . In use, the quantity of the standard counterweight blocks 320 can be adjusted according to actual needs, thereby adjusting the counterweight capacity of the counterweight body 300 .

Preferably, the counterweight telescopic oil cylinder 500 is hingedly connected with the fixed counterweight body 310 , a support hinged with the counterweight telescopic oil cylinder 500 is left in the middle of the top of the fixed counterweight body 310 , and no standard is placed above the hinged support with the counterweight telescopic oil cylinder 500 The counterweight 320 , that is, the other end of the counterweight telescopic cylinder 500 is hingedly connected to the fixed counterweight 310 , so that the fixed counterweight 310 and the standard counterweight 320 can move integrally under the driving of the counterweight telescopic cylinder 500 .

Preferably, the positioning hole group 110 includes a first positioning hole 111 and a second positioning hole 112, and the fixing hole group 220 includes a first fixing hole 221 and a second fixing hole corresponding to the first positioning hole 111 and the second positioning hole 112. 222, the frame body 210 can be stably connected to the crane turntable 100 through the two-hole structure.

Preferably, the number of counterweight positioning columns 311 is two, and the counterweight positioning columns 311 are arranged on both sides of the support on the fixed counterweight body 310 that is hinged with the counterweight telescopic cylinder 500, and each counterweight positioning column 311 A standard weight block 320 can be placed on the top, and the side wall of the standard weight block 320 can be positioned in abutment with the side plate 212 .

The utility model also provides a truck-mounted crane with the above-mentioned crane counterweight structure, which is convenient for on-site installation and disassembly of the counterweight, avoids the situation that the front of the truck-mounted crane is high and the rear is low, and improves the safety of the truck-mounted crane and stability.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and replacements can be made without departing from the technical principles of the present invention. These improvements And replacement should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a hoist counter weight structure, its characterized in that includes the counter weight support and locates the location punch combination on the hoist revolving stage, the counter weight support include the support body and connect in counterweight body on the support body, be equipped with on the support body can with location punch combination complex fixed punch combination, insert between location punch combination and the fixed punch combination and establish the fixed pin and be connected.

2. The crane counterweight structure according to claim 1, further comprising a swing cylinder support and a support cylinder support which are arranged on the carriage, wherein the support cylinder support is hinged with a support cylinder, the support cylinder comprises a cylinder body and a support end which can extend and retract in the cylinder body, the support end can vertically support the frame body, and a swing cylinder is hinged between the cylinder body and the swing cylinder support to drive the support cylinder to swing.

3. The crane counterweight structure according to claim 2, further comprising a counterweight telescopic cylinder, wherein two ends of the counterweight telescopic cylinder are respectively hinged to the counterweight body and the frame body, and the counterweight telescopic cylinder is horizontally arranged to push the counterweight body to move back and forth in the frame body.

4. The crane counterweight structure of claim 3 wherein said counterweight body comprises a fixed counterweight body, a counterweight positioning post is connected to the top of said fixed counterweight body, and a standard counterweight can be positioned on said counterweight positioning post.

5. The crane counterweight structure of claim 4 wherein said counterweight extension cylinder is hingedly connected to said fixed counterweight body.

6. The crane counterweight structure of claim 5, wherein the positioning hole set comprises a first positioning hole and a second positioning hole, and the fixing hole set comprises a first fixing hole and a second fixing hole which are arranged corresponding to the first positioning hole and the second positioning hole.

7. The crane counterweight structure of claim 6 wherein said counterweight positioning posts are two in number.

8. A lorry-mounted crane having a crane counterweight structure as claimed in any one of claims 1 to 7.

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