CN206104554U - Wear -resisting type roll - Google Patents

Abstract

The utility model discloses a wear -resisting type roll, including roll body and roller, the last roller shell that has cup jointed of roller body outer surface, the roller shell includes roller shell and lower roller shell, it is connected with lower roll cover lock to go up the roller shell. The utility model discloses simple structure, convenient to use adopts the outer wall at the roll body to cup joint the one deck roller shell, has improved the mechanical properties and the wearability of roll, has prolonged the life of roll, during roller shell wearing and tearing when the roll body on, directly change the roller shell can, need not to change the roll, novel in design unique, worth popularization.

Description

A kind of wear-resisting type roll

Technical field

The utility model is related to a kind of roll, more particularly to a kind of wear-resisting type roll.

Background technology

Roll is the strength member on rolling mill, and using the pressure produced when a pair or one group of roll rolling stone roller steel is rolled Material.But existing roll often there arises a problem that：1st, roll surface crackle：Crackle is divided into normal crackle and improper crackle, Normal crackle is also fire check, is that the roll surface caused by the thermal stress produced due to multiple temperature cycles is gradually ruptured, and is occur A kind of micro- superficial layer phenomenon on roll surface；Improper crackle is because of skidding, steel bonding, steel-fastening, piling of steel, whipping in the operation of rolling Thermal shock crack is caused etc. accident, on roll surface surface the crackle of certain depth and extensibility is partially formed；2nd, impression：It is primarily referred to as Cause the press-in of the foreign matters such as iron scale due to cleaning reason etc. in process of production, produce in roll surface and be continuously or discontinuously distributed The pit of irregular shape etc.；3rd, oxide layer deterioration：Rolling starts, and after a period of time scalds roller, is formed in roller surface One layer of silver gray or light blue relatively thin oxide-film, it is particularly significant to protection roll surface, raising rolled piece surface quality, due to rolling The repeated action of power, causes oxide-film that micro-crack is produced around carbide；When roll cooling capacity is not enough, roll surface is hardly formed Fine and close oxide-film, even if form oxide-film also can deteriorate quickly.It is unreasonable rolling, oxide-film quilt rapidly in generating process Destruction, can cause oxide layer deterioration, and in roll surface the defects such as meteor spot are left, and cause roll surface roughness to raise, wear extent increase；4、 Steel bonding, inordinate wear etc.：The adhesion of roll surface and rolled piece is caused because rolling is abnormal, steel bonding occurs；Technological parameter does not conform to during rolling Reason causes excessive with width kilometer roll consumption, causes roll surface wearing uneven existing.For this purpose, a kind of it is proposed that wear-resisting type roll.

Utility model content

Main purpose of the present utility model is to provide a kind of wear-resisting type roll, can with effectively solving background technology in ask Topic.

For achieving the above object, the technical scheme that the utility model is taken is：

A kind of wear-resisting type roll, including roll body and roll shaft, are socketed with roller set on the roll body outer surface, the roller set includes Upper roller covers and lower roll set, and the upper roller set is fastened and connected with lower roll set.

Further, be provided with multiple buckle teeth on the cross section of upper roller set and lower roll set, the buckle teeth described in two it Between be provided with teeth groove, the buckle teeth on the upper roller set cross section is connected one by one with the teeth groove on lower roll set cross section, described Upper roller covers the tooth tip and bottom of the tooth end homonymy of the buckle teeth covered with lower roll on cross section and raises successively or reduce successively.

Further, the roll body inwall is provided with water cooling layer.

Further, the roll body and roll shaft are formed in one structure.

Further, the buckle teeth is using rectangular configuration or triangular structure or trapezium structure.

Further, the roll body is rich chromium cast iron material.

Compared with prior art, the utility model has the advantages that：The utility model simple structure, user Just, one layer of roller set is socketed using the outer wall in roll body, improves the mechanical performance and wearability of roll, extend the use of roll In the life-span, when the roller set abrasion on roll body, directly more roll change set, novel in design unique without the need for changing roll, is worth pushing away Extensively.

Description of the drawings

Fig. 1 is a kind of overall structure diagram of wear-resisting type roll of the utility model.

Fig. 2 is a kind of sectional view of wear-resisting type roll of the utility model.

Fig. 3 is a kind of a kind of embodiment figure of wear-resisting type roll of the utility model.

Fig. 4 is a kind of a kind of embodiment figure of wear-resisting type roll of the utility model.

Fig. 5 is a kind of a kind of embodiment figure of wear-resisting type roll of the utility model.

In figure：1st, roll body；2nd, roll shaft；3rd, roller set；4th, upper roller set；5th, lower roll set；6th, buckle teeth；7th, teeth groove；8th, water cooling layer.

Specific embodiment

Technological means, creation characteristic, reached purpose and effect to realize the utility model is easy to understand, below With reference to specific embodiment, the utility model is expanded on further.

As Figure 1-5, the utility model provides a kind of wear-resisting type roll, including roll body 1 and roll shaft 2, outside the roll body 1 Roller set 3 is socketed with surface, the roller set 3 includes upper roller set 4 and lower roll set 5, and the upper roller set 4 is fastened and connected with lower roll set 5.

Wherein, multiple buckle teeth 6, two neighboring described buckle teeth are provided with the cross section of the upper roller set 4 and lower roll set 5 Teeth groove 7 is provided between 6, the buckle teeth 6 that the upper roller is covered on 4 cross sections coordinates one by one company with the teeth groove 7 on 5 cross sections of lower roll set Connect, the tooth tip and bottom of the tooth end homonymy of the buckle teeth 6 on 5 cross sections of the upper roller set 4 and lower roll set are raised successively or reduced successively, Upper roller set 4 and the intermeshing of lower roll set 5 have loosens the effect tightened up,.

Wherein, the inwall of the roll body 1 is provided with water cooling layer 8, and roll body understands into heat amount, water cooling layer in running 8 can cool down to roll body 1, so as to cool down to roller set 3, can effectively extend the service life of roll body 1 and roller set 3.

Wherein, the roll body 1 and roll shaft 2 are formed in one structure, convenient processing.

Wherein, using rectangular configuration or triangular structure or trapezium structure, these structures have to be led well the buckle teeth 6 To type, it is easy to the buckle of upper roller set 4 and lower roll set 5, and loosening is less prone to after buckle.

Wherein, the roll body 1 is rich chromium cast iron material, and rich chromium cast iron material has very strong mechanical strength, service life It is long.

The utility model is：Roller set 3 is socketed with the outer surface of roll body 1, roller set 3 includes upper roller set 4 and lower roll set 5, on Roller set 4 is fastened and connected with lower roll set 5, and in the outer surface of roll body 1 one layer of roller set 3 of socket is fastened, and can strengthen the wear-resisting of roll body 1 Property, directly changed after roller set 3 is because of service wear.

Design advantage of the present utility model is：One layer of roller set is socketed using the outer wall in roll body, the machine of roll is improve Tool performance and wearability, extend the service life of roll, and when the roller set abrasion on roll body, directly more roll change covers, nothing Roll need to be changed.

General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply illustrate principle of the present utility model, on the premise of without departing from the utility model spirit and scope, the utility model is also Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model Claimed scope is by appending claims and its equivalent thereof.

Claims (6)

1. a kind of wear-resisting type roll, including roll body (1) and roll shaft (2), it is characterised in that：It is socketed on roll body (1) outer surface There is roller set (3), the roller set (3) includes upper roller set (4) and lower roll set (5), and the upper roller set (4) fastens with lower roll set (5) and connects Connect.

2. wear-resisting type roll according to claim 1, it is characterised in that：The upper roller set (4) and lower roll set (5) it is transversal Multiple buckle teeth (6) are provided with face, teeth groove (7) is provided between two neighboring described buckle teeth (6), the upper roller set (4) is horizontal Buckle teeth (6) on section is connected one by one with the teeth groove (7) on lower roll set (5) cross section, the upper roller set (4) and lower roll set (5) tooth tip and bottom of the tooth end homonymy of buckle teeth (6) on cross section is raised successively or reduced successively.

3. wear-resisting type roll according to claim 1, it is characterised in that：Roll body (1) inwall is provided with water cooling layer (8)。

4. wear-resisting type roll according to claim 1, it is characterised in that：The roll body (1) and roll shaft (2) are formed in one Structure.

5. wear-resisting type roll according to claim 2, it is characterised in that：The buckle teeth (6) is using rectangular configuration or triangle Shape structure or trapezium structure.

6. wear-resisting type roll according to claim 1, it is characterised in that：The roll body (1) is rich chromium cast iron material.