CN206705506U - A grasping mechanism of a special crane for pipes - Google Patents

Abstract

A grabbing mechanism of a special crane for pipes comprises a positioning head, a telescopic part and a lifting claw, wherein the positioning head is fixed at the upper part of the telescopic part; the upper end of the positioning head is provided with a plurality of riveting rods which penetrate through the positioning head; the telescopic part comprises a telescopic part body, a chuck fixed at the lower end of the telescopic part body and an extension part clamped on the lower surface of the chuck, and the telescopic part can be vertically stretched along the vertical direction; the extension part is connected with the hanging claw; the lifting claw comprises two oppositely arranged claw hooks, the tail ends of the two claw hooks are fixed by pins and can be completely closed, the lifting claw can be arranged on a lifting mechanism of a crane to complete the grabbing work of the pipe, and the lifting claw has the advantages of being simple in structure, stable and reliable.

Description

A grasping mechanism of a special crane for pipes

technical field

The utility model relates to the technical field of cranes, in particular to a grasping mechanism of a pipe-specific crane.

Background technique

At present, a crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range. Also known as cranes, the working characteristics of lifting equipment are intermittent movements, that is, the corresponding mechanisms for retrieving, moving, and unloading in a working cycle work alternately. The development and use of cranes in the market are becoming more and more more extensive. However, most of the existing cranes are aimed at large containers and large machinery that are easy to fix. First, the large container or large machinery is fixed to the hoisting mechanism of the crane, and then the lifting mechanism is lifted to transfer the goods. Among them, large containers or heavy machinery are equipped with special fixing parts such as lifting rings and handles, which are easy to fix on the lifting mechanism of the crane. However, there is no special fixing part for pipe products, which is not convenient to use a crane for transfer.

Utility model content

The purpose of the utility model is to solve the deficiencies in the prior art, and provide a simple, stable and reliable grabbing mechanism for pipe-specific cranes, which can be installed on the hoisting mechanism of the crane to complete the pipe grabbing work.

The purpose of this utility model is achieved through the following technical solutions:

A grabbing mechanism for a pipe-specific crane is provided, including a positioning head, a telescoping part and a lifting claw. The main body of the telescopic part, the chuck fixed on the lower end of the main body of the telescopic part and the extension part clamped on the lower surface of the chuck, the telescopic part can stretch up and down along the vertical direction; the extension part is connected with the hanging claw; the hanging claw includes two opposite Claw hooks, the tail ends of the two grapple hooks are fixed by pins and can be completely closed.

Wherein, the upper end of the positioning head is provided with two riveting rods, and the two riveting rods are symmetrically arranged on both sides of the upper end of the positioning head.

Among them, it also includes a plurality of telescopic rods, each telescopic rod includes a guide rod and a sleeve sleeved on the guide rod, the upper end of the sleeve is fixed to the positioning head, and the lower end of the guide rod is connected to the telescopic part.

Wherein, the protruding part includes two metal plates oppositely arranged on the chuck, and the metal plates are provided with through holes for fixing the hanging claws.

Wherein, an elastic member is arranged between the claw hook of the hanging claw and the pin.

The beneficial effects of the utility model:

In the grabbing mechanism of the pipe special crane of the utility model, the upper end of the positioning head is provided with a plurality of riveting rods passing through the positioning head, and the grabbing mechanism of the pipe special crane can be installed on the lifting mechanism of the crane through the riveting rods The telescopic part includes a telescopic part body, a chuck fixed to the lower end of the telescopic part body, and an extension part clamped on the lower surface of the chuck. The telescopic part can stretch up and down along the vertical direction; Telescopic to the appropriate position, so that the claw can grab the pipe, and then the two claw hooks of the crane are completely closed, and the lifting mechanism of the crane is lifted to complete the transfer of the pipe.

Description of drawings

Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.

Fig. 1 is a schematic diagram of the overall structure of a grabbing mechanism of a pipe-specific crane of the present invention.

Fig. 2 is a structural schematic diagram of a positioning head of a grabbing mechanism of a pipe-specific crane of the present invention.

Fig. 3 is a structural schematic diagram of the telescoping part of the grasping mechanism of a pipe-specific crane of the present invention.

Fig. 4 is a structural schematic diagram of a claw of a grabbing mechanism of a pipe-specific crane of the present invention.

Fig. 5 is a structural schematic diagram of the telescopic rod of the grasping mechanism of a special pipe crane of the present invention.

Reference numerals among Fig. 1 to Fig. 5:

Positioning head 1, riveting rod 11;

Telescopic part 2, telescopic part body 21, chuck 22, extension part 23;

Hanging claw 3, claw hook 31;

Telescopic rod 4, sleeve 41, guide rod 42.

detailed description

The utility model is further described in conjunction with the following examples.

The grabbing mechanism of a kind of pipe special crane of the utility model, as shown in Figure 1, its structure comprises positioning head 1, telescopic part 2, hanging claw 3, and positioning head 1 is fixed on telescopic part 2 top. As shown in Figure 2, the upper end of the positioning head 1 is provided with two riveting rods 11 passing through the positioning head 1, and the two riveting rods 11 are symmetrically arranged on both sides of the upper end of the positioning head 1; Fixed on the hoisting mechanism of the crane. As shown in Fig. 1, Fig. 3 and Fig. 5, the telescopic part 2 comprises a telescopic part body 21, a chuck 22 fixed on the lower end of the telescopic part body 21 and an extension part 23 clamped on the lower surface of the chuck 22, the telescopic part 2 Also be provided with four telescopic rods 4, four telescopic rods 4 are respectively arranged around the surface of telescopic part 2, each telescopic rod 4 all comprises guide rod 42 and the sleeve 41 that is socketed in this guide rod 42, and the upper end of sleeve 41 Fixed on the positioning head 1, the lower end of the guide rod 42 is connected to the telescopic part 2, and the guide rod 42 and the sleeve 41 are socketed, so they can slide relatively, so that the telescopic rod 4 can be stretched up and down in the vertical direction; the telescopic part 2 The extension part 23 of the extension part 23 is connected with the hanging claw 3 as shown in Figure 4; The extension part 23 comprises two metal plates that are relatively arranged on the chuck 22, and the metal plate is provided with a through hole for fixing the hanging claw 3, and the hanging claw 3 is arranged between two opposite through holes, and then a connecting rod is used to pass through the two through holes to fix the hanging claw 3 on the extension part 23. This fixing method is convenient and quick and easy to disassemble. The hanging claw 3 includes two claw hooks 31 that are arranged oppositely. The tail ends of the two claw hooks 31 are fixed by pins and can be completely closed. Similar to the claw 3 , there is a cable connection pin in the telescopic part 2 , and the two claw hooks 31 are separated or closed by the pulling force of the cable. The elastic member acts as a buffer, increasing the service life of the claw hooks 31 and making it easier for the two claw hooks 31 to reset.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (5)

1. A grabbing mechanism for a pipe-specific crane, characterized in that: it includes a positioning head, a telescoping portion and a claw, and the positioning head is fixed on the top of the telescoping portion; the upper end of the positioning head is provided with a plurality of riveting rods passing through the positioning head The telescopic part includes the main body of the telescopic part, the chuck fixed on the lower end of the main body of the telescopic part, and the extension part clamped on the lower surface of the chuck. The telescopic part can stretch up and down along the vertical direction; Two claw hooks arranged opposite to each other, the tail ends of the two claw hooks are fixed by pins and can be completely closed. 2. The grabbing mechanism of a special pipe crane according to claim 1, characterized in that: the upper end of the positioning head is provided with two riveting rods, and the two riveting rods are symmetrically arranged on both sides of the upper end of the positioning head . 3. The gripping mechanism of a pipe-specific crane according to claim 1, characterized in that: it also includes a plurality of telescopic rods, each telescopic rod includes a guide rod and a sleeve socketed on the guide rod, the sleeve The upper end of the barrel is fixed to the positioning head, and the lower end of the guide rod is connected to the telescopic part. 4. The gripping mechanism of a pipe-specific crane according to claim 1, wherein the extension part includes two metal plates oppositely arranged on the chuck, and the metal plate is provided with a The through hole of the claw. 5 . The grabbing mechanism of a pipe-specific crane according to claim 1 , wherein an elastic member is provided between the hook of the lifting claw and the pin. 6 .