CN201090577Y

CN201090577Y - Snap ring type axial direction stopping structure

Info

Publication number: CN201090577Y
Application number: CNU2007200733826U
Authority: CN
Inventors: 葛奋
Original assignee: Shanghai Pudong Iron & Steel Co Ltd Of Baosteel Group Corp
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2007-08-07
Filing date: 2007-08-07
Publication date: 2008-07-23
Anticipated expiration: 2017-08-07

Abstract

Disclosed is a snap-ring type axial retaining structure, comprising an inner ring of the snap ring, an outer ring of the snap ring and bolts; wherein the inner ring and the outer ring of the snap ring are fixed in a retaining groove; a rotation stopping key is arranged under the inner ring of the snap ring; the inner ring is L-shaped, the outer ring is arranged at the L-shaped gap of the inner ring and is in the same level as the outer surface of the inner ring. The utility model has the advantages that strong axial force resistance and strong impact resistance ensure stable operation of a metallurgical plate mill and the advantages of low structural design difficulty, easy assembly and reliable service effect; the structure of the utility model can facilitate problem finding and solving in time and help realize zero failure in production.

Description

The axial retaining structure of clasp type

Technical field

The utility model relates to a kind of retaining structure of low-speed heave-load main equipment, the axial retaining structure of the clasp type that uses on particularly a kind of metallurgical heavy plate mill.

Background technique

Metallurgical equipment general work load is big, work under bad environment, and use continuously, but in the retaining structural design of metallurgical machinery routine, often have unsuitable place, as these are subjected on the very big axle of axial force at the axle of worm screw, dress umbrella tooth etc., generally adopting pitch is that 2 millimeters double nut carries out axial retaining, in actual use, double nut retaining structure difficulty of processing height, it is unreliable to use, and the play fault takes place easily, influence the milling train activity duration, repair also relatively difficulty.

Summary of the invention

Technical problem of the present utility model is to provide strong, the reliable and stable clasp type of a kind of anti-axial force axial retaining structure.

In order to solve above technical problem, the utility model provides a kind of clasp type axial retaining structure, this retaining structure comprises ring, snap ring outer shroud, bolt in the snap ring, and ring and snap ring outer shroud in locking trough, ring under are provided with spline key in the snap ring by bolt in the snap ring.

Ring in the described snap ring, it is the L type.

Described snap ring outer shroud, the indentation, there that it is positioned over ring L type in the snap ring flushes with the outer surface that encircles in the snap ring.

Superior effect of the present utility model is:

1) anti-axial force of the present utility model is extremely strong, and anti-impact force is also strong, makes metallurgical heavy plate mill stable;

2) structural design difficulty of the present utility model is low, and assembling is easy, and using effect is reliable;

3) use structure of the present utility model, be convenient in time pinpoint the problems, in time handle, accomplish the production zero failure.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the left view of this Fig. 1;

Fig. 3 is assemblied in the instance graph of worm screw for the utility model.

The number in the figure explanation

Ring in the 1-snap ring; 2-snap ring outer shroud;

The 3-bolt; 4-spline key;

The 5-worm screw.

Embodiment

See also shown in the accompanying drawing, the utility model will be further described.

Shown in the left view of Fig. 1 structural representation of the present utility model and Fig. 2, the utility model provides a kind of clasp type axial retaining structure, this retaining structure comprises ring 1, snap ring outer shroud 2, bolt 3 in the snap ring, ring 1 is fixed in locking trough with snap ring outer shroud 2 by bolt 3 in the snap ring, is provided with spline key 4 under the ring 1 in the snap ring.

Ring 1 in the described snap ring, it is the L type.

Described snap ring outer shroud 2, it is positioned over the indentation, there of ring 1L type in the snap ring, flushes with the outer surface of ring 1 in the snap ring.

Shown in the instance graph that Fig. 3 the utility model is assemblied in worm screw, screw position place processing locking trough on worm screw 5, and on one section axle at spline key 4 places, process keyway, after ring 1 thickness is put a little surpluses in the snap ring, it is standby to make spare part, in order to prevent that the retaining ring from rotating, also can change and join spline key 4 to retaining, the thickness of joining ring 1 in the snap ring during use by the requirement car of transition fit, then with bolt 3 with in the snap ring ring 1 and snap ring outer shroud 2 be fixed on the locking trough place, this structure with original thread pay stressed, become the axle internal force, intensity is original several times, even tens times, solved the problem that screw thread is paid easy pine.In use, Zhou free movement can be linear and increases sometimes, and this is that retaining ring or groove are in plastic deformation, this deformation process is longer, needs several weeks, even some months, this has the time enough arrangement to handle to the maintenance man, as long as arrange to handle in good time, just can accomplish the production zero failure.From machining angle, part is many several, but difficulty of processing has descended, so processing cost does not increase.

The utility model on the slab finishing mill is depressed the worm screw of speed reducer, the roughing mill edger roll is depressed on the worm screw of speed reducer and be applied in the assembling of finishing mill breast roll roller, effect is obvious, the former fault point that similar fault repeatedly takes place, this type of fault that now disappeared, and obtain favorable economic benefit.

Claims

1. axial retaining structure of clasp type is characterized in that: this retaining structure comprises ring, snap ring outer shroud, bolt in the snap ring, in the snap ring ring with the snap ring outer shroud by bolt in locking trough, be provided with the spline key under encircling in the snap ring.

2. by the axial retaining structure of the described a kind of clasp type of claim 1, it is characterized in that: ring in the described snap ring, it is the L type.

3. by the axial retaining structure of the described a kind of clasp type of claim 1, it is characterized in that: described snap ring outer shroud, the indentation, there that it is positioned over ring in the snap ring flushes with the outer surface that encircles in the snap ring.