CN204198255U - Eccentric formula tin hook that turns over - Google Patents

Abstract

The utility model relates to an eccentric tank turning hook, which comprises a hook, a hanging fork, a connecting shaft, and a hook hanging beam. The boss of the hook hanging beam is provided with a positioning hole, and the boss of the hanging fork is provided with a through hole. , the hook and the suspension beam are connected to the suspension fork through a long rod or a screw rod, and are fixed by fasteners, the suspension fork and the suspension hook are connected through a connecting shaft, and the suspension hook is an eccentric hook. The utility model has the advantages that: the hook operation is completed once, only takes 1 minute, and the hook time is shortened by 3 minutes on average, which not only effectively improves the operation rate of the crane, but also reduces the labor intensity of the operators. Due to the eccentric design of the hook, the hook mouth of the hook extends a certain length in the direction of the hook, so the trunnion can be hung accurately, and the damage and deformation of the hook cover caused by the collision between the hook cover and the tank body are avoided. The service life of the hook group and the steel rope is improved.

Description

An eccentric can turning hook

technical field

The utility model relates to an eccentric can-turning hook, in particular to an eccentric can-turning hook used for the secondary roll of a metallurgical casting crane.

Background technique

In modern iron and steel metallurgical enterprises, metallurgical casting cranes have increasingly become the key equipment that restricts high production standards. Metallurgical foundry cranes use the main coil hoist to complete the hoisting of various molten iron tanks and steel tanks, and use the auxiliary coil hooks to complete the tank turning operations such as mixing iron, folding iron, and dumping residual steel slag. The crane completes the folding of molten iron from the large tank to the small tank; the large desulfurization 140T crane completes the slag removal of molten iron; the 125T crane of the mixed iron furnace completes the mixing and folding of molten iron to the mixing furnace; the 140T and 135T cranes in front of the furnace complete the mixing and folding of molten iron to the converter ; The continuous casting 300T crane completes operations such as dumping residual steel slag from the molten steel tank, thereby ensuring the smooth flow of the continuous operation production process.

The completion of these can turning operations all depends on the auxiliary coil turning hook, and the original vehicle auxiliary coil hooks all adopt standard hooks (forging). The diameter of the pulley block in the hook block is larger than the same direction of the hook mouth. When the crane driver is turning over the tank, the hook pulley block and the hook cover hit the tank first, causing the hook mouth to fail to hang to the bottom of the tank. The trunnion makes it impossible to finish hanging the tank, making the hook difficult. It can only be completed with the assistance of ground personnel, and usually takes about 4-5 minutes, which affects production time. Simultaneously, because during operation, hook pulley block hits tank body, easily makes the hook cover damage deformation of hook pulley block outside, causes steel rope to be broken and scrapped when serious, thereby safety accident takes place.

Contents of the invention

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide an eccentric tank turning hook, which is convenient for hanging tanks, shortens the time for hanging tanks, improves the service life of the hook group, and ensures the safety of personnel.

In order to achieve the above object, the utility model is realized through the following technical solutions:

An eccentric tank turning hook, comprising a hook, a hanging fork, a connecting shaft, and a hook hanging beam, a positioning hole is arranged on the boss of the hook hanging beam, a through hole is arranged on the boss of the hanging fork, the hook hangs The beam is connected to the suspension fork through a long rod or a screw rod, and is fixed by a fastener. The suspension fork and the suspension hook are connected through a connecting shaft, and the suspension hook is an eccentric hook.

When the hook hangs naturally under the action of gravity, the protruding distance of the mouth of the hook is D=400-800mm.

Compared with the prior art, the beneficial effects of the utility model are:

It is realized that the hook operation is completed at one time, only takes 1 minute, and the hook time is shortened by 3 minutes on average, which not only effectively improves the crane operation rate, but also reduces the labor intensity of the operators. Due to the eccentric design of the hook, the hook mouth of the hook extends a certain length in the direction of the hook, so the trunnion can be hung accurately, and the damage and deformation of the hook cover caused by the collision between the hook cover and the tank body are avoided. The service life of the hook group and the steel rope is improved.

Description of drawings

Figure 1 is a schematic diagram of the hook structure.

Figure 2 is a schematic diagram of the suspension fork structure.

Fig. 3 is the front view of the utility model.

Fig. 4 is a side view of the utility model.

In the figure: 1-Hook 2-Fork 3-Connecting shaft 4-Positioning hole 5-Hook beam 6-Long rod 7-Through hole.

Detailed ways

The utility model is described in detail below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.

See Figure 1-Figure 4, the eccentric tank turning hook, including hook 1, hanging fork 2, connecting shaft 3, hook hanging beam 5, the boss of hook hanging beam 5 is provided with positioning hole 4, hanging fork 2 There is a through hole 7 on the boss, the hook beam 5 is connected with the suspension fork 2 through the long rod 6 or the screw rod, and fixed by fasteners, the suspension fork 2 is connected with the suspension hook 1 through the connecting shaft 3, and the suspension hook 1 It is an eccentric hook. When the hook 1 hangs naturally under the action of gravity, the mouth of the hook 1 protrudes at a distance D=400-800mm, so as to adapt to different types of cranes. When other objects need to be hung, the long rod 6 or the screw rod can be removed to ensure that the hook 1 can rotate freely.

The hook 1 is riveted and welded with 16Mn rolled steel plate, and the strength has been checked, and it is fixed by the connecting shaft 3 and the fork 2. Extend the mouth of the hook 1 to a distance D of 400-800mm from the central axis of the hook 1 (the distance can be designed and selected according to the actual demand on site), so that the protruding amount of the mouth of the hook exceeds a certain size outside the hook cover to ensure that the hook 1. Accurately hang on the trunnions at the bottom of the molten iron and molten steel tanks, effectively avoiding the secondary roll hook pulley block from hitting the tank body. The entire hooking process does not require the cooperation of on-site personnel, which shortens the production and operation time and effectively improves the crane operation rate.

Since the hook 1 is designed with a forward extension according to the actual demand on site, no matter where the tank trunnion is, the trunnion can be easily hung, which avoids the collision between the hook cover and the tank body and the friction between the steel wire rope and the tank edge. When the hook 1 is hung on the trunnion of the tank bottom and the force is applied to the lifting hook, due to the change of the center of gravity, the centerline of the mouth of the hook 1 coincides with the centerline of the pulley block to form a line. At this time, the hook is always directly stressed in the vertical direction, thus Ensure that the hook cannot be unhooked to ensure safe operation.

Claims (1)

1. An eccentric tank turning hook is characterized in that it comprises a suspension hook, a suspension fork, a connecting shaft, a suspension hook suspension beam, the boss of the suspension hook suspension beam is provided with a positioning hole, and the projection of the suspension fork is provided with Through holes, the hook and the suspension beam are connected to the suspension fork through a long rod or screw rod, and are fixed by fasteners. The suspension fork and the suspension hook are connected through a connecting shaft. The suspension hook is an eccentric hook; When hanging naturally under the action, the protruding distance of the mouth of the hook is D = 400 ~ 800mm. the