CN219860179U - Special lifting appliance for ring-forging flange - Google Patents

Abstract

The utility model discloses a special lifting appliance for ring-forging flanges, which comprises a vertically arranged main shaft, wherein a plurality of supporting rods are arranged at the bottom of the main shaft along the circumferential direction, an L-shaped block is hinged at the free end of each supporting rod, each L-shaped block comprises a clamping strip and an upper brace, a sliding sleeve is arranged on the main shaft, the sliding sleeve is connected with the upper brace of each L-shaped block through a flexible rope, a fixed block and a sliding unhooking block are also arranged on the main shaft up and down, the fixed block and the unhooking block are positioned between the sliding sleeve and the supporting rods, a boss for supporting the unhooking block is arranged on the main shaft, a plurality of hooks are hinged on the sliding sleeve, an inner concave surface for fixing the hooks is arranged at the bottom of the fixed block, and the unhooking block is a dish-shaped block. The utility model can automatically clamp and unclamp the ring flange without safety risk.

Description

Special lifting appliance for ring-forging flange

Technical Field

The utility model relates to the field of lifting appliances, in particular to a lifting appliance special for a ring-forging flange.

Background

The lifting appliance refers to a device for lifting a weight in a lifting machine. The most commonly used slings for lifting articles are hooks and slings, and others are slings, lifting chucks, clamps, forks and the like. Is widely applied to the hoisting industry.

The forged ring flange needs to be lifted from the forging machine to a water tank for water cooling, the ring flange is high in temperature and heavy in weight, and the ring flange is not stably conveyed by using a forklift or other equipment, so that a certain safety risk exists. The clamping ring flange can be stably clamped by using the lifting appliance, but because the temperature of the ring flange is higher, on-site workers are close to the ring flange and dangerous, the lifting appliance needs to have the functions of automatic clamping and loosening, and the existing lifting appliance cannot meet the on-site use requirement.

Disclosure of Invention

The utility model aims to provide a special lifting appliance for ring-forging flanges.

The lifting appliance has the innovation point that the lifting appliance can automatically clamp and unclamp the ring flange, and safety risks are avoided.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the special lifting appliance for the ring-forging flange comprises a main shaft which is vertically arranged, a plurality of supporting rods are arranged at the bottom of the main shaft along the circumferential direction, an L-shaped block is hinged at the free end of each supporting rod, each L-shaped block comprises a clamping strip and an upper brace, a sliding sleeve is arranged on the main shaft, the sliding sleeve is connected with the upper brace of each L-shaped block through a flexible rope, a fixed block and a sliding unhooking block are also arranged up and down on the main shaft, the fixed block and the unhooking block are positioned between the sliding sleeve and the supporting rods, a boss for supporting the unhooking block is arranged on the main shaft, a plurality of hooking claws are hinged on the sliding sleeve, an inner concave surface for hooking claw fixing is arranged at the bottom of the fixed block, and the unhooking block is a dish-shaped block; when the sliding sleeve is pulled up until the flexible rope body is straightened, the hook claw is positioned above the fixed block, and an outward included angle between the clamping strip and the supporting rod is an acute angle; when the hook claw hooks the fixed block, an outward included angle between the clamping strip and the supporting rod is an obtuse angle.

In the initial state, the hook claw hooks the fixed block, the flexible rope body is in a loose state, an outward included angle between the clamping strip and the support rod is an obtuse angle, and the lifting appliance is lowered until the support rod contacts the ring flange; then, a sliding sleeve is put down, the sliding sleeve drives the hook claw to move downwards, and the bottom of the hook claw moves downwards to the unhooking block; the sliding sleeve is pulled upwards, the hook claw drives the unhooking block to move upwards, when the unhooking block moves upwards to contact the supporting fixed block, the bottom of the hook claw is separated from the unhooking block, the bottom of the hook claw moves upwards to the upper part of the fixed block, the upper brace is pulled upwards by the flexible rope body, the clamping strip rotates along with the upper brace until the flexible rope body is straightened, the ring flange is clamped between the supporting rod and the clamping strip, and the unhooking block slides down to the boss under the action of gravity; when the hanger is transported to a destination, the ring flange is placed at the destination, the sliding sleeve is placed down, the bottom of the hook claw moves to a position between the fixed block and the unhooking block along the conical surface, then the sliding sleeve is pulled up, the hook claw hooks the fixed block, an outward included angle between the clamping strip and the supporting rod is kept at an obtuse angle, the ring flange is not carried up when the hanger is pulled up, and automatic clamping and loosening are realized.

Preferably, the flexible rope is an iron chain. The ring flange is not easy to damage when being used in a high-temperature environment, has long service life and can be hung with a heavy ring flange.

Preferably, the L-shaped block is provided with jacks, a plurality of through holes are arranged on the support rod along the length direction of the support rod, the intervals among the through holes are equal, and bolts penetrating through the through holes are arranged in the jacks. According to the diameter of the ring flange, the bolt is inserted into a proper through hole, so that the bolt can be suitable for ring flanges with different diameters.

Preferably, the support rods are uniformly distributed around the main shaft, and three support rods are arranged. Three support bars are sufficient to stabilize the lifting ring flange.

Preferably, the upper end of the fixed block is provided with a conical surface for guiding when the hook claw moves downwards. The hook claw moves downwards more smoothly.

The beneficial effects of the utility model are as follows:

1. the utility model can automatically clamp and unclamp the ring flange without safety risk.

2. The utility model has long service life of the iron chain.

3. According to the diameter of the ring flange, the bolts are inserted into the proper through holes, so that the utility model can be suitable for ring flanges with different diameters.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front view of the present utility model.

Description of the embodiments

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Example 1: as shown in fig. 1 and 2, the ring-forging flange lifting appliance comprises a vertically arranged main shaft 1, wherein a plurality of support rods 2 are circumferentially arranged at the bottom of the main shaft 1, an L-shaped block 3 is hinged at the free end of each support rod 2, jacks 3.1 are arranged on each L-shaped block 3, a plurality of through holes 2.1 are arranged on each support rod 2 along the length direction of each support rod, the distances between adjacent through holes 2.1 are equal, a bolt 4 penetrating through each through hole 2.1 is arranged in each jack 3.1, each L-shaped block 3 comprises a clamping strip 3.2 and an upper brace 3.3, a sliding sleeve 5 is arranged on each main shaft 1, the sliding sleeve 5 is connected with the upper brace 3.3 of each L-shaped block 3 through a flexible rope 6, each main shaft 1 is further provided with a fixed block 7 and a sliding unhooking block 8, each fixed block 7 and each unhooking block 8 are positioned between the sliding sleeve 5 and each support rod 2, each main shaft 1 is provided with a boss 1.1 supporting each unhooking block 8, each sliding sleeve 5 is hinged with a plurality of claws 9, the bottom of the fixed block 7 is provided with a concave surface 7.1 for fixing the lifting claw 9, and the upper end of each fixed block 7 is provided with a guide hook 9 is provided with a lower hook 9; when the sliding sleeve 5 is pulled up to the flexible rope body 6 to be straightened, the hook claw 9 is positioned above the fixed block 7, and an outward included angle between the clamping strip 3.2 and the supporting rod 2 is an acute angle; when the hook claw 9 hooks the fixed block 7, an outward included angle between the clamping strip 3.2 and the supporting rod 2 is an obtuse angle.

In the initial state, the hook claw 9 hooks the fixed block 7, the flexible rope body 6 is in a loose state, an outward included angle between the clamping strip 3.2 and the support rod 2 is an obtuse angle, and the lifting appliance is lowered until the support rod 2 contacts the ring flange 10; then the sliding sleeve 5 is lowered, the sliding sleeve 5 drives the hook claw 9 to move downwards, and the bottom of the hook claw 9 moves downwards to the unhooking block 8; when the sliding sleeve 5 is pulled up, the hook claw 9 drives the unhooking block 8 to move upwards, when the unhooking block 8 moves upwards to contact the supporting fixed block 7, the bottom of the hook claw 9 is separated from the unhooking block 8, the bottom of the hook claw 9 moves upwards to be above the fixed block 7, the upper brace 3.3 is pulled up by the flexible rope body 6, the clamping strip 3.2 rotates along with the flexible rope body 6 until the flexible rope body 6 is straightened, the ring flange 10 is clamped between the supporting rod 2 and the clamping strip 3.2, and the unhooking block 8 slides down to the boss 1.1 under the action of gravity; when the hanger is transported to a destination, the ring flange 10 is lowered at the destination, the sliding sleeve 5 is lowered, the bottom of the hook claw 9 moves between the fixed block 7 and the unhooking block 5 along the conical surface 7.2, then the sliding sleeve 5 is pulled up, the hook claw 9 hooks the fixed block 7, the outward included angle between the clamping strip 3.2 and the supporting rod 2 is kept obtuse, and the ring flange 10 cannot be carried up when the hanger is pulled up.

The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (5)

1. The special lifting appliance for the ring-forging flange is characterized by comprising a vertically arranged main shaft, wherein a plurality of supporting rods are arranged at the bottom of the main shaft along the circumferential direction, an L-shaped block is hinged at the free end of each supporting rod, each L-shaped block comprises a clamping strip and an upper brace, a sliding sleeve is arranged on the main shaft, the sliding sleeve is connected with the upper brace of each L-shaped block through a flexible rope, a fixed block and a sliding unhooking block are also arranged up and down on the main shaft, the fixed block and the unhooking block are positioned between the sliding sleeve and the supporting rods, a boss for supporting the unhooking block is arranged on the main shaft, a plurality of hook claws are hinged on the sliding sleeve, an inner concave surface for fixing the hook claws is arranged at the bottom of the fixed block, and the unhooking block is a dish-shaped block; when the sliding sleeve is pulled up until the flexible rope body is straightened, the hook claw is positioned above the fixed block, and an outward included angle between the clamping strip and the supporting rod is an acute angle; when the hook claw hooks the fixed block, an outward included angle between the clamping strip and the supporting rod is an obtuse angle.

2. The special lifting appliance for the ring-forging flange according to claim 1, wherein the flexible rope body is an iron chain.

3. The special lifting appliance for the ring-forging flange according to claim 1, wherein the L-shaped block is provided with a jack, a plurality of through holes are arranged on the supporting rod along the length direction of the L-shaped block, the distance between the adjacent through holes is equal, and a bolt penetrating through the through holes is arranged in the jack.

4. The special lifting appliance for the ring-forging flange according to claim 1, wherein the supporting rods are uniformly distributed around the main shaft, and the number of the supporting rods is three.

5. The special lifting appliance for the ring-forging flange according to claim 1, wherein the upper end of the fixed block is provided with a conical surface for guiding when the hook claw moves downwards.