CN202316532U

CN202316532U - Machine frame push-and-pull device for replacing roller machine frame

Info

Publication number: CN202316532U
Application number: CN201120485005XU
Authority: CN
Inventors: 李鹏霞
Original assignee: Taiyuan Heavy Industry Co Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2012-07-11
Anticipated expiration: 2021-11-15

Abstract

The utility model discloses a machine frame push-and-pull device for replacing a roller machine frame, and relates to equipment for producing seamless steel pipes. By the machine frame push-and-pull device, the problem of large floor space in the conventional machine frame push-and-pull device is solved. The machine frame push-and-pull device comprises a hydraulic cylinder, a cross beam, a push head, a drag hook, a base and a fork head, wherein a lug ring on the head part of the hydraulic cylinder is connected with the fork head; the fork head is connected with the cross beam; the push head is fixed to the cross beam; the drag hook is hinged with the cross beam; the cross beam is arranged on the base flatly; a lower plane of the cross beam is provided with a sliding plate and a sliding chute; and the sliding chute is in sliding fit with the sliding plate on the base. The machine frame push-and-pull device is characterized in that the hydraulic cylinder is a multi-stage hydraulic cylinder with a short cylinder body; and the fork head is arranged inside the cross beam. The machine frame push-and-pull device is used for a tube knockout machine, a sizing mill or a stretch-reducing mill, and is small in floor space.

Description

A kind of frame push-pull device at fixed of changing roll stand

Technical field

The utility model relates to seamless steel pipe production, particularly winding arbor extraction press or sizing mill, the frame push-pull device at fixed when stretch-reducing mill is used to change roll stand.

Background technology

As everyone knows; The roll stand contour structures of supporting winding arbor extraction press, sizing mill, stretch-reducing mill on seamless steel tube production chain is very similar; And all to dispose the roll stand of different passes in process of production according to instructions for use; So be used to change the frame push-pull device at fixed of roll stand is their indispensable devices, also is their total equipment.

Because the distance that the roll change process need be passed by is long, traditional frame push-pull device at fixed adopts common Driven by Hydraulic Cylinder, and hydraulic cylinder uses stroke length to cause the appearance and size of hydraulic cylinder long, and floor space is bigger; And the jaw of traditional frame push-pull device at fixed connection hydraulic cylinder is external, has also occupied certain locus, and this structure is installed, lifting is all inconvenient, and in the workshop that apparatus arrangement is compact, span is little, drawback is more obvious.

The utility model content

The purpose of the utility model is exactly in order to overcome the shortcoming of existing equipment, a kind of frame push-pull device at fixed of changing roll stand to be provided, solving the bigger problem of traditional frame push-pull device at fixed floor space.

The utility model is realized through following technical scheme:

A kind of frame push-pull device at fixed of changing roll stand comprises: hydraulic cylinder, crossbeam, cut somebody's hair, drag hook, base, jaw, the head earrings of said hydraulic cylinder is connected with said jaw; Said jaw is connected with said crossbeam; Said cutting somebody's hair is fixed on the said crossbeam, and said drag hook is hinged on the said crossbeam, and said crossbeam is flat on the said base; On said crossbeam lower plane, dispose slide plate and chute; Said chute cooperates with slide plate slides on the base, it is characterized in that: said hydraulic cylinder is the short multistage hydraulic cylinder of a kind of cylinder body, and it is inner that said jaw is inserted said crossbeam.

The utility model compared with prior art, its advantage and beneficial effect are:

(1) use of multistage hydraulic cylinder is because multistage hydraulic cylinder is compared with common hydraulic cylinder and shortened greatly in the identical situation cylinder body appearance and size of stroke.

(2) jaw that hydraulic cylinder will be installed changes stemple inside into by the outside and has also saved installing space.As shown in the figure, comprehensive relatively this new structure guarantee to make and basis easy to install on saved installing space greatly, reduced the whole floor space of equipment.

Description of drawings

Fig. 1 is the structural front view of existing roll change frame push-pull device at fixed;

Fig. 2 is the vertical view of Fig. 1;

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

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the partial sectional view of Fig. 3.

Utility model is further described through embodiment below in conjunction with accompanying drawing.

The practical implementation method

Like Fig. 3,4, shown in 5, a kind of frame push-pull device at fixed of changing roll stand comprises: hydraulic cylinder 1; Crossbeam 2, cut somebody's hair 3, drag hook 4, base 5, jaw 9, the head earrings of said hydraulic cylinder 1 is connected with said jaw 9, said jaw 9 is connected with said crossbeam 2; Crossbeam 2 is the box Welding Structure; Said cutting somebody's hair 3 is fixed on the said crossbeam 2, and said drag hook 4 is hinged on the said crossbeam 2, and said crossbeam 2 is flat on the said base 5; On said crossbeam lower plane, dispose slide plate 6 and chute 7, the slide plate 8 on said chute 7 and the base is slidingly matched; Said hydraulic cylinder 1 is the short multistage hydraulic cylinder 1-1 of a kind of cylinder body, and said jaw 9 is inserted said crossbeam 2 inside.

When changing roll stand; The operation multistage hydraulic cylinder can make crossbeam 2 be with to cut somebody's hair 3 to move forward on base 5 with drag hook 4; And via the roll change buggy that disposes before it, bridging table old roll stand is pulled out in main engine bed, new roll stand is advanced in the main engine bed, accomplish the roll change action.

Claims

1. frame push-pull device at fixed of changing roll stand; Comprise: hydraulic cylinder (1), crossbeam (2), cut somebody's hair (3), drag hook (4), base (5), jaw (9), the head earrings of said hydraulic cylinder (1) is connected with said jaw (9); Said jaw (9) is connected with said crossbeam (2); Said cutting somebody's hair (3) is fixed on the said crossbeam (2), and said drag hook (4) is hinged on the said crossbeam (2), and said crossbeam (2) is flat on the said base (5); On said crossbeam (2) lower plane, dispose slide plate (6) and chute (7); Slide plate (8) on said chute (7) and the base is slidingly matched, and it is characterized in that: said hydraulic cylinder (1) is the short multistage hydraulic cylinder (1-1) of a kind of cylinder body, and said jaw (9) is inserted said crossbeam (2) inside.