CN200940068Y

CN200940068Y - Grab for lifting cast ingot

Info

Publication number: CN200940068Y
Application number: CN 200620122929
Authority: CN
Inventors: 黎勇; 刘锦旗; 文贤仁; 何沛学
Original assignee: Southwest Aluminum Group Co Ltd
Current assignee: Southwest Aluminum Group Co Ltd
Priority date: 2006-08-02
Filing date: 2006-08-02
Publication date: 2007-08-29
Anticipated expiration: 2016-08-02

Abstract

The utility model discloses a casting ingot sling tongs, and comprises at least a pair of the scissors-type clamp arms articulated together. The location in the internal part of the each clap arm is provided with at least a glue roller that is parallel with the articulated shaft of the clamp arm. The lower edge of the plastic roller protrudes downward and out of the lower edge of the clamp arm, and higher than the clamp tight side of the clamp arm mouth that is in the contracted condition. When the casting ingot sling tongs falls the materials, the glue roller contacts with the surface of the casting ingot. Because the rigidity of the surface of the plastic roller is low, the roll pin bearing can rotate freely, thereby realizing the purposes of protecting the casting ingot surface.

Description

Ingot casting hangs the material pincers

Technical field

The utility model relates to the instrument that a kind of ingot casting handling is used, and promptly ingot casting hangs the material pincers.

Background technology

For example in the aluminium process of producing product, the carrying of aluminium ingot casting need and be hung the material pincers and carry out handling with overhead traveling crane at ingot casting.Hang the material pincers and constitute by cutting shape crossing tong arm and tong arm tail end pivotally attached connecting rod, two connecting rods all are hinged on again on the suspension ring, utilize the opening and closing of tong arm that the aluminium ingot casting is put down and clamps.

Because the aluminium ingot specification is big, weight is heavier, thereby hang and expect that pincers weight is also heavier, tong arm is thicker, fall when contacting when hanging material pincers with aluminium ingot, can form certain impulsive force, when hang material pincers sling tong arm in the process dehisce to draw in the time, tong arm also can have certain slide relative with respect to the aluminium ingot surface.Because the aluminium ingot material is softer, hang the impulsive force of material pincers and, can weigh and scratch the aluminium ingot surface wounded with respect to the slip of aluminium ingot, form percussion mark, roll over trace, the aluminium product processing quality has been formed certain influence.

The utility model content

Hang impact and the scuffing problem to the ingot casting surface that the material pincers exist at existing ingot casting, the purpose of this utility model is to provide a kind of later-model ingot casting to hang the material pincers.

The utility model adopts following technical scheme: a kind of ingot casting hangs the material pincers, comprise and become to cut at least one pair of tong arm of shape pivotally attached, it is characterized in that: be positioned at jaw in-to-in part at every side tong arm at least one rubber roll parallel with the jointed shaft of tong arm is installed, the lower edge of rubber roll protrudes from the lower edge of tong arm downwards, and is higher than the pinching end of tong arm jaw at contraction state.

Can be provided with vertical slotted hole on the described tong arm, the roll shaft two ends of described rubber roll are through respectively in the vertical slotted hole on the tong arm.

Be further shock absorbing power, to reduce infringement to rubber roll and ingot casting, the spring perch that cylinder constitutes can be installed on the described tong arm, the belleville spring or the coil spring that play damping of vibrations are contained in the tubular spring perch, its lower end is pressed against on the depression bar that is through in the described spring perch, the upper end withstand on one by screw fit on the hold-down nut of described cylinder upper end, described depression bar upper end is through in the axle center hole of described nut, lower ends downward withstands on the roll shaft end of described rubber roll.Described depression bar can directly contact with described roll shaft or be connected as a single entity.

Described rubber roll inside is steel cylinder, is compounded with rubber layer in the steel cylinder outside and constitutes Compound rubber roller, and Compound rubber roller is installed on the roll shaft by needle bearing.

For improving the shock-resistant life-span of rubber roll, in rubber layer, be compounded with the steel tire of steel wire coiled.

This ingot casting of the present utility model hangs material pincers, owing to be provided with rubber roll, when ingot casting hangs the material pincers and falls to hanging material, rubber roll contact ingot casting surface forms Elastic Contact, and the aluminium ingot surface is difficult for wounding, and because the rotation of rubber roll makes when tong arm moves with respect to aluminium ingot the also difficult aluminium ingot surface that scratches.This ingot casting hangs the material pincers and hangs the material except that can be used as aluminium ingot, also can be used for the handling of other ingot castings or other products.

Description of drawings

Fig. 1 hangs material wrench structure scheme drawing for ingot casting of the present utility model.

Fig. 2 is the structural representation of shock attenuation unit.

The specific embodiment

Below in conjunction with the drawings and specific embodiments ingot casting of the present utility model being hung the material pincers is described further.

As shown in Figure 1, hang the material pincers and constitute by cutting shape crossing tong arm 1,2 and tong arm 1,2 tail end pivotally attached connecting rods 3,4, two connecting rods 3,4 all are hinged on again on the suspension ring 5.Be positioned at jaw in-to-in part at every side tong arm 1,2 rubber roll 7 parallel with the jointed shaft 6 of tong arm is installed, the lower edge of rubber roll 7 protrudes from the lower edge of place, position tong arm 1,2 downwards, and be higher than pinching end 1a, the 2a of tong arm jaw at contraction state, make when hanging material pincers whereabouts, rubber roll 7 contacts with ingot casting earlier, form Elastic Contact, avoid occurring impression; When the jaw contraction utilized its pinching end 1a, 2a to clamp ingot casting, rubber roll 7 can roll with respect to ingot casting, and guarantees can not produce cut on ingot casting.

Rubber roll 7 can be for directly constituting at roll shaft outside face rubber coating.For improving the alerting ability of its rotation, as shown in Figure 2, its inside is steel cylinder 22, is compounded with rubber layer 23 in steel cylinder 22 outsides and constitutes Compound rubber rollers, and Compound rubber roller is installed on the roll shaft 20 by needle bearing 21, and this structure rotary resistance is little and can not come off.And accompany the steel tire 24 of steel wire coiled in rubber layer 23, rubber layer 23 damages and comes off when preventing to clash into ingot casting.

Contact the buffer capacity of moment when hanging material pincers whereabouts with ingot casting for further improving, as a most preferred embodiment of the present utility model, it is vertical slotted hole 9 that ingot casting hangs the mounting hole that roll shaft 20 usefulness are installed on the material pincers tong arm, roll shaft 20 two ends of rubber roll are through in this vertical slotted hole 9, and can be along sliding on the vertical slotted hole length direction.On tong arm 1,2, be welded with spring perch 8 cylindraceous, a belleville spring or coil spring are arranged in the spring perch 8, constitute shock attenuation unit.The structure of the shock attenuation unit that spring perch and spring constitute as shown in Figure 2, spring perch 8 is made of a band round-ended cylinder 11 and hold-down nut 13, cylinder 11 upper ends are equipped with hold-down nut 13 by screw thread, axle center hole is all arranged at the bottom of hold-down nut 13 and cylinder 11, depression bar 25 passes the axle center hole on cylinder 11 bottoms and the hold-down nut 13, belleville spring 12 or the step place of screw thread spring lower end abutment on depression bar 25 are with respect to depression bar 25 location, and the compacted nut 13 in upper end compresses.Because roll shaft 20 is in the slotted hole 9 that is through on the tong arm, it is contained in hangs on the material pincers, belleville spring or coil spring effect are to strengthen buffering and absorption capacity, so depression bar 25 both can be fixed together with roll shaft 20, also can directly be pressed against on the roll shaft 20, so that assembling.Certainly, if when adopting depression bar 25 and roll shaft to link together, can also be by nut 10 or pin etc. being installed in depression bar 25 upper ends that pass hold-down nut 13, it can not come off on hold-down nut 13, and roll shaft 20 can pass the hole on the tong arm and directly be installed on the tong arm by depression bar and spring perch at this moment.Fall to the ingot casting surface and contact moment hanging material pincers like this, rubber roll 8 can and compress belleville spring 12 or coil spring simultaneously along tong arm slotted hole 9 upward movements, utilize it to move and the further buffering and reduce impulsive force of the elasticity of spring, avoid occurring percussion mark the ingot casting surface.Save the compression of spring amount by regulating the depth-adjustment that is screwed into of hold-down nut 13 in spring perch, adjust the cushion effect value.

The tong arm of each side both can be made of the pair of plate-shaped tong arm as shown in Figure 2, in the space of rubber roll 7 between the pair of plate-shaped tong arm, also can only be a tong arm, and rubber roll 7 is positioned at the tong arm below fully.

Claims

1, a kind of ingot casting hangs the material pincers, comprise and become to cut at least one pair of tong arm of shape pivotally attached, it is characterized in that: be positioned at jaw in-to-in part at every side tong arm at least one rubber roll parallel with the jointed shaft of tong arm is installed, the lower edge of rubber roll protrudes from the lower edge of tong arm downwards, and is higher than the pinching end of tong arm jaw at contraction state.

2, ingot casting as claimed in claim 1 hangs material pincers, and it is characterized in that: described tong arm is provided with vertical slotted hole, and the roll shaft two ends of described rubber roll are through respectively in the vertical slotted hole on the tong arm.

3, ingot casting as claimed in claim 2 hangs the material pincers, it is characterized in that: the spring perch that cylinder constitutes is installed on the described tong arm, the belleville spring or the coil spring that play damping of vibrations are contained in this tubular spring perch, its lower end is pressed against on the depression bar that is through in the described spring perch, the upper end withstand on one by screw fit on the hold-down nut of described cylinder upper end, described depression bar upper end is through in the axle center hole of described hold-down nut, and lower ends downward withstands on the roll shaft end of described rubber roll.

4, ingot casting as claimed in claim 3 hangs the material pincers, and it is characterized in that: described depression bar directly contacts with described roll shaft.

5, ingot casting as claimed in claim 1 hangs the material pincers, it is characterized in that: the spring perch that cylinder constitutes is installed on the described tong arm, the belleville spring or the coil spring that play damping of vibrations are contained in the tubular spring perch, its lower end is pressed against on the depression bar that is through described spring perch, the upper end withstand on one by screw fit on the hold-down nut of described cylinder upper end, described depression bar upper end is through in the axle center hole of described nut, and nut or the pin that prevents that it from deviating from from hold-down nut being housed at traversing through end, its lower ends downward is connected the roll shaft end of described rubber roll.

6, hang the material pincers as described ingot casting one of in the claim 1 to 5, it is characterized in that: described rubber roll is inner to be to be compounded with steel cylinder rubber layer in the steel cylinder outside and to constitute Compound rubber roller, and Compound rubber roller is installed on the roll shaft by needle bearing.

7, ingot casting as claimed in claim 6 hangs the material pincers, it is characterized in that: the steel tire that is compounded with the steel wire coiled in described rubber layer.