CN204980854U - Automatic tongs of lopps work piece - Google Patents

Abstract

The utility model discloses an automatic tongs of lopps work piece, including the base, along the base axle center upwards the welding have a guide bar, the guide cylinder is equipped with at guide bar upper portion excircle cover, the welding of guide cylinder upper end has rings, slide kit has the slider on the excircle of guide bar lower part, move the guide bar excircle of slider top on fixed being provided with decide the slider, evenly be provided with three davit along the base circumference, lean on at the dead slot of every davit that the outer end is articulated to have a lifting claw, three lug is installed to the outer circumference of guide cylinder lower extreme, and every lug corresponds articulatedly respectively through a set of hoop chain and a lifting claw outer end, every lug lower extreme is all through the articulated couple that has of pinning. The utility model discloses a tongs is applicable to the lopps forging of different specifications, has realized the automatic hook and the unblock of handling process.

Description

A kind of automatic tongs of annular workpieces

Technical field

The utility model belongs to mechanical equipment technical field, relates to a kind of automatic tongs of annular workpieces.

Background technology

Existing annular workpieces (or ring forgings) suspender is three-jaw hook drag chain form, hung on overhead traveling crane hook by three lower end iron chains with hook and carry out handling, during operation, cleek lower end is tangled with poker respectively by three people, ensure that each cleek can tangle bottom ring, then control the lifting of overhead traveling crane hook and carry out handling.This suspender because iron chains is oversize, too heavy, be not easy to help, therefore three people are not often very smooth in engagement process, and need repeatedly to try lifting and just can succeed, efficiency is very low; And cleek be heated after be very easily out of shape, the suspender life-span is shorter, often can grab due to some cleeks and incessantly make ring accidental fall bottom ring, there is larger potential safety hazard in the process of handling; Moreover need 3 ~ 4 people to cooperatively interact in the process of handling, add the labour intensity of workman.

Utility model content

The purpose of this utility model is to provide a kind of automatic tongs of annular workpieces, solve prior art and adopt hook drag chain type suspender handling ring forgings, there is lifting times many, multi-person synergy cooperation just can complete, the problem that handling efficiency is low, energy consumption is large, working strength is large, security risk is large.

The technical solution adopted in the utility model is, a kind of automatic tongs of annular workpieces, comprises pedestal, is upwards welded with pilot bar along pedestal axle center, and portion's cylindrical is set with guide cylinder on the guide bar, and guide cylinder upper end is welded with suspension ring;

On the cylindrical of pilot bar bottom, slip cap is equipped with movable slider, and the pilot bar cylindrical above movable slider is fixedly installed fixed slider;

Pedestal even circumferential is provided with three arms, is hinged with one at the outer end of the dead slot of each arm and hangs pawl,

Guide cylinder lower end excircle is provided with three hangers, each hanger respectively by one group of iron hoop chain with one to hang pawl outer end corresponding hinged; All there is a hook each hanger lower end by pin-hinges.

The automatic tongs of annular workpieces of the present utility model, is further characterized in that:

Each hook is welded with a clump weight.

Each arm is rectangular groove shape, and on the cell wall of each arm both sides, level has equally spaced paired pin-and-hole, and each to hang pawl hinged by the arm at respective pin and place.

The beneficial effects of the utility model are, are suitable for the ring forgings of different size, achieve the automation hook of handling process, improve handling efficiency, lifting success ratio reaches more than 99%, and work efficiency improves more than 5 times, significantly reduce productive costs, alleviate the labour intensity of workman.

Accompanying drawing explanation

Fig. 1 is structural front view of the present utility model;

Fig. 2 is structure side view of the present utility model;

Fig. 3 is structure birds-eye view of the present utility model;

Fig. 4 is the schematic diagram of the utility model handling ring state.

In figure, 1. suspension ring, 2. guide cylinder, 3. hanger, 4. iron hoop chain, 5. hang pawl, 6. arm, 7. movable slider, 8. clump weight, 9. link up with, 10. pedestal, 11. pilot bars, 12. fixed sliders.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, structure of the present utility model is,

Comprise pedestal 10, be upwards welded with pilot bar 11 along pedestal 10 axle center, on pilot bar 11 top, cylindrical is set with guide cylinder 2, and guide cylinder 2 upper end is welded with suspension ring 1, and guide cylinder 2 can drive along pilot bar 11 up-and-down movement by suspension ring 1 by overhead traveling crane;

On the cylindrical of pilot bar 11 bottom, slip cap is equipped with movable slider 7, pilot bar 11 cylindrical above movable slider 7 is fixedly installed (welding) and has fixed slider 12, movable slider 7 can slide up and down along pilot bar 11 cylindrical in the scope between pilot bar 11 lower end to fixed slider 12, sees Fig. 3;

Pedestal 10 even circumferential is provided with three arms 6, and these three arms 6 are successively in 120 ° of angles; Each arm 6 is rectangular groove shape, and level has equally spaced paired pin-and-hole on the cell wall of each arm 6 both sides, be hinged with one at the outer end of dead slot of each arm 6 and hang pawl 5, it is each that to hang pawl 5 hinged by the arm 6 at respective pin and place, hang pawl 5 to rotate around pin in the rectangular groove of arm 6, hang the pin of pawl 5 in the rectangular groove of arm 6 and connect location by diverse location, the radial installation site of pawl 5 along pedestal 10 is hung for regulating, so that the ring forgings of the different endoporus of handling, is shown in Fig. 4.

Guide cylinder 2 lower end excircle installs (welding) three hangers 3, and these three hangers 3 become 120 ° of angles to be uniformly distributed successively, each hanger 3 respectively by one group of iron hoop chain 4 with one to hang pawl 5 outer end corresponding hinged; Each hanger 3 lower end all has one to link up with 9 by pin-hinges, each hook 9 is welded with a clump weight 8, along with moving up and down of guide cylinder 2, hangs pawl 5 rotate certain angle by iron hoop chain 4 drive in the rectangular groove of arm 6; Meanwhile, three hook 9 lower ends are inwardly connected with movable slider 7 hook.

With reference to Fig. 3, each arm 6 also can be set to telescopic, so as with hang pawl 5 and coordinate and regulates, the ring forgings of the wider endoporus of adaptation handling difference.

Principle of work of the present utility model is:

1) during not handling workpiece, hook greatly suspension ring 1 by overhead traveling crane, hook 9 hangs on fixed slider 12, and guide cylinder 2 can not upward sliding, and three hangers 3 are strained three by iron hoop chain 4 and hung pawl 5, and now whole tongs is in self-locking state, and each parts all cannot action;

2) when preparing handling, with reference to Fig. 4, tongs drops on annular workpieces (forging), along with overhead traveling crane hook falls, guide cylinder 2 decline drives hook 9 to utilize the Action of Gravity Field of clump weight 8 to leave fixed slider 12, and movable slider 7 is close downwards, when hook 9 touches movable slider 7, due to the gradient of the leaning angle and movable slider 7 ramp of linking up with 9 lower end coupler bodies, hook 9 can be made to slide into the lower inclined plane of movable slider 7 always, then, overhead traveling crane hook starts to rise, guide cylinder 2 and hook 9 is driven to move up, the gradient of movable slider 7 lower inclined plane and hook 9 and counterweight 8 thereof be applied to the power of movable slider 7, movable slider 7 is forced to move up until contact completely with fixed slider 12, at this moment, movable slider 7 cannot continue upward movement, therefore the gradient upward movement of 9 beginnings along movable slider 7 lower inclined plane is linked up with, because movable slider 7 ramp and fixed slider 12 inner peripheral surface closely cooperate, excessively round and smooth, now hook 9 directly can be crossed movable slider 7 and be moved upward to fixed slider 12 top, movable slider 7 glides automatically, at this moment along with overhead traveling crane hook continues to move up, guide cylinder 2 and hanger 3 drive three iron hoop chains 4 to move up, make each hang pawl 5 outer end upwards inwardly to rotate, hang pawl 5 the inner downwardly towards outer rotation, when hanging pawl 5 lower end and touching ring forgings inwall, along with tongs hoist and ring forgings from focus on hang on pawl 5 produce tension force and friction force together ring forgings is sling,

3) when ring forgings handling is broken off relations to regulation region, along with the decline of overhead traveling crane hook, tongs declines, contrary with the process hoisted, when hook 9 drop to bottom fixed slider 12 and Neutral Position between movable slider 7 ramp time, overhead traveling crane hook promotes again, now linking up with 9 can hang on fixed slider 12 inner peripheral surface, guide cylinder 2 can not upward sliding, tongs is in self-locking state again, but three iron hoop chains 4 are all in relaxed state, three upper ends of hanging pawl 5 are heavier, make three lower end inwardly upper rotations of hanging pawl 5, then three are hung pawl 5 and can throw off with ring inwall simultaneously, tongs can be automatically-unhooked smoothly.

The utility model, according to the size of different rings forging, utilizes to regulate and hangs the installation site of pawl 5 in arm 6 to meet the handling of the ring forgings of different inner diameters; By linking up with 9, fixed slider 12, movable slider 7 " the self-locking release mechanism " that form, thus realize automatic hitch and the unblock of handling process, not only increase handling efficiency, and reduce the labour intensity of productive costs and forger.

Claims (3)

1. the automatic tongs of an annular workpieces, it is characterized in that: comprise pedestal (10), pilot bar (11) is upwards welded with along pedestal (10) axle center, on pilot bar (11) top, cylindrical is set with guide cylinder (2), and guide cylinder (2) upper end is welded with suspension ring (1);

On the cylindrical of pilot bar (11) bottom, slip cap is equipped with movable slider (7), and pilot bar (11) cylindrical of movable slider (7) top is fixedly installed fixed slider (12);

Pedestal (10) even circumferential is provided with three arms (6), is hinged with one at the outer end of dead slot of each arm (6) and hangs pawl (5),

Guide cylinder (2) lower end excircle is provided with three hangers (3), each hanger (3) respectively by one group of iron hoop chain (4) with one to hang pawl (5) outer end corresponding hinged; All there is a hook (9) each hanger (3) lower end by pin-hinges.

2. the automatic tongs of annular workpieces according to claim 1, is characterized in that: described each hook (9) is welded with a clump weight (8).

3. the automatic tongs of annular workpieces according to claim 1, it is characterized in that: described each arm (6) is rectangular groove shape, and level has equally spaced paired pin-and-hole on the cell wall of each arm (6) both sides, each to hang pawl (5) hinged by the arm (6) at respective pin and place.