CN201427131Y

CN201427131Y - Assembled composite roll

Info

Publication number: CN201427131Y
Application number: CN2009200650752U
Authority: CN
Inventors: 赵勇
Original assignee: HUNAN TIAN-YI-TECH MATERIAL MANUFACTURING Co Ltd
Current assignee: HUNAN TIAN-YI-TECH MATERIAL MANUFACTURING Co Ltd
Priority date: 2009-07-01
Filing date: 2009-07-01
Publication date: 2010-03-24
Anticipated expiration: 2019-07-01

Abstract

The utility model discloses an assembled composite roll. A roll jacket with grooves at the two ends is suited at the roll body part of a spindle, a left end cover and a right end cover are respectively installed at the left end and the right end of the roll jacket, raised keys are processed on the right end cover, a left square key and a right square key are embedded between the left end cover andthe spindle and between the right end cover and the spindle, the left end cover and the right end cover are connected with the spindle through a left connecting bolt and a right connecting bolt, a left shaft shoulder and a right shaft shoulder are installed on the roll neck at the left end and the right end of the spindle and are respectively close to the left end cover and the right end cover, and the left shaft shoulder and the right shaft shoulder are respectively as well as tightly connected with the left end cover and the right end cover through a left fastening bolt and a right fastening bolt. The assembled composite roll has the advantages of strong practicability and long service life, thereby being promoted to the metallurgic and steel rolling enterprises.

Description

The assembled composite roll

Technical field

The utility model relates to a kind of roll, relates in particular to a kind of assembled composite roll that is applied to rolled section steel etc. in the smelter metal working process, is metal-working plant.

Background technology

It is all as a whole to be used for the rolling various different cultivars of smelter or specification (as angle steel, channel-section steel etc.) its shape of employed planishing roll or structure, the roll neck and the body of roll that are roll are an impartible integral body of making by casting or Forging Technology, the weak point of the roll of this shape or structure is that certain pass must be changed whole roll can not re-use because of rolling time is long the time, cause roll consumption too high, production cost increases, frequent in addition roll change must reduce operating rate of rolling mill, influence of rolled output and milling train lumber recovery.ZL02223546.9 " Roller ring composite roller ", ZL02277359.2 " ring roller " etc. were arranged before the utility model, their advantage and strong point arranged, but stability of structure can be not ideal, causes play easily.

Summary of the invention

The purpose of this utility model is to provide a kind of compact conformation, long service life, replacing is easy to maintenance and applicability is wide assembled composite roll.

For achieving the above object, the technical solution adopted in the utility model is: overlap in inwall casting one deck of roller shell, be with the roll overcoat of forming by roller shell and interior cover in the middle part of mandrel, left end at the roll overcoat is equipped with left end cap, right-hand member at the roll overcoat is equipped with right end cap, on left end cap and right end cap, be processed with protruding key, be processed with two and the corresponding groove of protruding key at the two ends of roll overcoat, protruding key is embedded in and forms concavo-convex combination in this groove, and left end cap, right end cap are fused with the roll overcoat.Be embedded with left side square key between left end cap and mandrel, and be embedded with the right square key between right end cap and mandrel, left connecting bolt links to each other left end cap with mandrel, and right connecting bolt links to each other right end cap with mandrel.On the roll neck of mandrel left end, be with the left shaft shoulder, on the roll neck of mandrel right-hand member, be with the right shaft shoulder, have left tight fixed bolt that the left shaft shoulder is close to mutually with left end cap, have right tight fixed bolt that the right shaft shoulder is close to mutually with right end cap near right end cap near left end cap.

Adopt a kind of assembled composite roll that as above technical scheme provides compared with prior art, technique effect is:

1. compact conformation is practical;

2. can improve 1-2 service life doubly;

3. easy to maintenance, only need the roller shell or the interior cover of rapid wear are pulled down getting final product of more renewing, mandrel can use for a long time.

4. reduce the about 20-30% of equipment cost.

Description of drawings

Fig. 1 is the partial schematic sectional view of a kind of assembled composite roll described in the utility model, also is Figure of abstract of the present utility model.

Fig. 2 is that the A of Fig. 1 is to schematic diagram.

Fig. 3 is that the B of Fig. 2 is to partial schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

Make roller shell 6 with high-speed steel, water the interior cover 5 of one deck spheroidal graphite cast-iron at the inwall of roller shell 6, both constitute the roll overcoat of described assembled composite roll roller shell 6 and interior cover 5, and the roll coat suit is in the middle part of mandrel 7, and described middle part also can be called the body of roll position of composite roll.Two ends at the roll overcoat are processed with groove.The left end of roll overcoat is equipped with left end cap 4, the right-hand member of roll overcoat be equipped with right end cap 4 ', dress left end cap 4 and right end cap 4 ' purpose be to prevent the relative slip of generation between roll overcoat and the mandrel 7.Left end cap 4 and right end cap 4 ' on be processed with protruding key 9 and protruding key 9 ', when the left end of left end cap 4 or right end cap 4 ' install to roll overcoat or right-hand member, make protruding key 9 and protruding key 9 ' be embedded in the groove at roll overcoat two ends, left end cap 4 and right end cap 4 ' fuse with the roll overcoat can not produce relative slip between them like this.Between left end cap 4 and mandrel 7, be embedded with left side square key 1, right end cap 4 ' and mandrel 7 between be embedded with the right square key 1 ', can further prevent between left end cap 4 and the mandrel 7 or right end cap 4 ' and mandrel 7 between the relative slip of generation.Can not produce relative slip between the roll overcoat that constitutes by interior cover 5 and roller shell 6, left end cap 4, right end cap 4 ' with protruding key 9, protruding key 9 ' and left side square key 1, the right square key 1 ' be connected arranged between the mandrel 7 mutually, roll overcoat and mandrel 7.There is left connecting bolt 3 that left end cap 4 is linked to each other with mandrel 7, right connecting bolt 3 ' with right end cap 4 ' link to each other with mandrel 7 is arranged, on the roll neck of mandrel 7 left ends, the left shaft shoulder 2 is housed near left end cap 4, on the roll neck of mandrel 7 right-hand members near the right shaft shoulder 2 of right end cap 4 ' be equipped with ', have left tight fixed bolt 8 that the left shaft shoulder 2 is close to mutually with left end cap 4, have right tight fixed bolt 8 ' the right shaft shoulder 2 ' with right end cap 4 ' be close to mutually.

During enforcement, can be processed into various pass (as angle steel, channel-section steel etc.) on roller shell 6 according to different needs, when steel transportation amount reaches certain limit, can change roller shell 6 at any time, change new roller shell 6, other parts still use, and have improved operating rate of rolling mill.

Claims

1, a kind of assembled composite roll is cast with interior cover (5) at the inwall of roller shell (6), and both constitute the roll overcoat roller shell (6) and interior cover (5), and it is characterized in that: the two ends of roll overcoat are processed with groove, and the roll coat suit is at the body of roll position of mandrel (7); The left end of roll overcoat is equipped with left end cap (4), the right-hand member of roll overcoat is equipped with right end cap (4 '), be processed with protruding key (9) and protruding key (9 ') on left end cap (4) and right end cap (4 '), protruding key (9) and protruding key (9 ') are embedded in the groove at roll overcoat two ends; Between left end cap (4) and mandrel (7), be embedded with left side square key (1), between right end cap (4 ') and mandrel (7), be embedded with the right square key (1 '); There is left connecting bolt (3) that left end cap (4) is linked to each other with mandrel (7), has right connecting bolt (3 ') that right end cap (4 ') is linked to each other with mandrel (7); On the roll neck of mandrel (7) left end, the left shaft shoulder (2) is housed near left end cap (4), on the roll neck of mandrel (7) right-hand member, the right shaft shoulder (2 ') is housed near right end cap (4 '), there is left tight fixed bolt (8) that the left shaft shoulder (2) is close to mutually with left end cap (4), has right tight fixed bolt (8 ') that the right shaft shoulder (2 ') is close to mutually with right end cap (4 ').