CN2148612Y

CN2148612Y - Roller

Info

Publication number: CN2148612Y
Application number: CN 92243839
Authority: CN
Inventors: 朱德昭; 季融
Original assignee: STATE-RUN JINGWEI TEXTILE MACHINERY PLANT
Current assignee: STATE-RUN JINGWEI TEXTILE MACHINERY PLANT
Priority date: 1992-12-03
Filing date: 1992-12-03
Publication date: 1993-12-08
Anticipated expiration: 2002-12-03

Abstract

The utility model relates to a roll, which is a cross rolled insert block type. The roll is composed of a roller shaft, a roller, and a connecting component. The roller is made into a block dividing packaged type, the roller is arranged on the shaft of the roll, and the roller surface is designed into a hole type wedge which is a sectional insert block structure according to the forming process. The hole type wedge of every roller at least is split into two insert blocks, and the insert block is fixed with the roller by pressing plates and screw bolts. The outside of the roll in the insert block type is hard and the inside of the roll in the insert block type is tenacious, and the service life of the utility model can be enhanced.

Description

Roller

The utility model belongs to cross wedge rolling moulding process category, is a kind of special roller of cross wedge rolling.

Cross wedge rolling is the metal forming new technology of rising in the last few years, is used for producing tapered axial workpiece on length, has production efficiency height, product precision height, stock utilization height, does not have advantages such as impacting, lack noise.At present three types cross wedge rolling machine being arranged both at home and abroad, is excellent with cross wedge rolling mill roller.Its moulding realizes that by roll therefore, the structure of roll and performance thereof directly influence the production efficiency and the rolled piece quality of cross wedge rolling system.The vertical cross wedge rolling machine of two rollers that Beijing College of Iron and Steel Technology and Wuxi red thunder tools factory produced in 1980 is a kind of advanced rolled with roller wedge equipment, its roll is made up of roll mandrel, roller and connector, roller is made the piecemeal assembled, be installed on the roll mandrel, roller surface has the pass wedge by the design of moulding process.Because the roller footpath is bigger, the wedge shape complexity, the roll heat treatment deformation is restive.Therefore, the material of roller adopts the on-deformable structural carbon steel of heat treatment more, though through modifier treatment, roll surface hardness is not high, and roll is very low service life.

Goal of the invention of the present utility model is in order to improve the service life of roll, the formula structure of inserting to be made at the pass wedge position of roll roller, overcoming the deficiency of prior art.

The insert concrete structure of formula roll of cross wedge rolling, be on the basis of existing cross wedge rolling roll, pass wedge on the roll roller is made the formula structure of inserting, the pass wedge of every roller is divided into two at least and inserts, inserting with being connected of roller is will insert and be pressed on the roller by screw with pressing plate, insert with roller between also have key to be connected the transmission moment of torsion.Can normally connect when expanding with heat and contract with cold for making to insert, adjacent two should be left the gap between inserting.The material of inserting is selected the superior alloy steel high temperature resistant, wear-resistant, that heat treatment deformation is little for use, preferably selects the W6Mo5Cr4V2AL steel alloy.When adopting the W6Mo5Cr4V2AL steel alloy, 0.3mm is preferably stayed in adjacent two gaps between inserting.

Compared with the prior art the utility model has the following advantages:

1, the formula roll of inserting, because the material of inserting can be selected superior alloy steel for use, heat treatment deformation is little, the case hardness height, matrix (roller) can adopt the carbon structural steel modifier treatment, and therefore, the performance of roll is outer tough in hard, has improved service life greatly.To produce the frame spindle blade is example, and spindle blade is a strength member of frame, is thickness inequality, the left and right sides asymmetric change section slender axles, and the compression ratio of rolling mill practice is big, and rolled piece does not allow tissue looseness and hollow phenomenon, and its material is GCr15, rolling difficulty.The employing formula roll of inserting is rolling, not only satisfied quality requirement, and the formula roll of inserting improves (monoblock type roll campaign is rolling 200, and the formula roll campaign of inserting is rolling more than 600) more than 300 times than monoblock type roll campaign.

2, the formula roll of inserting because the pass wedge that roll is is very easily worn and torn is made the formula structure of inserting, is inserted and can be changed, and has saved die cost, has reduced the cost of roll.

3, the formula roll of inserting is made, easy to maintenance, has improved the production efficiency of cross wedge rolling system.

Description of drawings:

Fig. 1 is the insert axonometric drawing of formula roll of a kind of cross wedge rolling;

Fig. 2 is the insert front view of formula roll of cross wedge rolling;

Fig. 3 is the radial cross-section of Fig. 2;

Fig. 4 is the formula roll roller FAST plot of inserting;

Fig. 5 is " spindle blade " strip plate schematic diagram.Wherein:

［ 1 ］-［ the 5 ］-screw of inserting

［ 2 ］-roller ［ 6 ］-pressing plate

［ 3 ］-roll mandrel ［ 7 ］-pass wedge

［ 4 ］-key ［ 8 ］-spindle blade strip plate

［ 9 ］-gap of inserting

Structure of the present utility model can also be in conjunction with the accompanying drawings, defends the insert embodiment of formula roll of cross wedge rolling that part uses by rolling frame ingot and further specified.

Referring to accompanying drawing, roll mandrel ［ 3 ］ and roller ［ 2 ］ adopt matched in clearance to be sleeved on together, roller ［ 2 ］ radially is cut into four (moulding sections), as Fig. 4 stripping and slicing 2-I, 2-II, 2-III, 2-IV, pass designing requirement by moulding process (wedging section, broadening shaped segment, Strain During Finishing Stage)

The pass wedge of 2-I stripping and slicing is made up of three insert (1-1,1-2,1-3),

The pass wedge of 2-II stripping and slicing is made up of six insert (1-4,1-5,1-6,1-7,1-8,1-9),

The pass wedge of 2-III stripping and slicing is made up of nine insert (1-10,1-11,1-12,1-13,1-14,1-15,1-16,1-17,1-18),

The pass wedge of 2-IV stripping and slicing is made up of nine insert (1-19,1-20,1-21,1-22,1-23,1-24,1-25,1-26,1-27).

That inserts transversally meets personally shown in Figure 2ly, and the longitudinal section of inserting is seen shown in Figure 3.

Shown in Figure 3 as Fig. 2, insert ［ 1 ］ tighten together by screw ［ 5 ］ with pressing plate ［ 6 ］, insert and also have key ［ 4 ］ to be connected between ［ 1 ］ and the roller ［ 2 ］, transmit moment of torsion, the material of ［ 1 ］ of inserting is selected W6Mo5Cr4V2AL, can reach the case hardness of HRC58-62 through heat treatment,, between two adjacent inserting ［ 1 ］, leave 0.3mm gap ［ 9 ］ in order to satisfy insert ［ 1 ］ requirement of expanding with heat and contract with cold.See shown in Figure 5 with the spindle blade strip plate ［ 8 ］ that the formula roll of inserting is rolling.

Claims

1, a kind of cross wedge rolling formula roll of inserting, be made up of roll mandrel, roller and connector, roller is made the piecemeal assembled, is installed on the roll mandrel, roller surface is processed with the pass wedge by the moulding process, and the pass wedge [7] that it is characterized in that roller [2] is made the segmentation formula structure of inserting.

2, according to the described cross wedge rolling of the claim 1 formula roll of inserting, the formula of the inserting structure that it is characterized in that pass wedge ［ 7 ］ is by the pass designing requirement pass wedge of every roller to be divided into two at least to insert, insert being connected of ［ 1 ］ and roller ［ 2 ］, be will insert and be pressed on the roller by screw ［ 5 ］ with pressing plate ［ 6 ］, the key ［ 4 ］ that transmits moment of torsion between insert ［ 1 ］ and roller ［ 2 ］ in addition is connected.

3, connect according to the claim 2 described cross wedge rolling formula roll of inserting, it is characterized in that pass wedge ［ 7 ］ is divided into three ［ 1-1 that insert by the pass designing requirement with the pass wedge of 2-I roller stripping and slicing, 1-2,1-3 ］, the pass wedge of 2-II roller stripping and slicing is divided into six ［ 1-4 that insert, 1-5,1-6,1-7,1-8,1-9 ］, the pass wedge of 2-III roller stripping and slicing is divided into nine ［ 1-10 that insert, 1-11,1-12,1-13,1-14,1-15,1-16,1-17,1-18 ］ the pass wedge of 2-IV roller stripping and slicing is divided into nine ［ 1-19 that insert, 1-20,1-21,1-22,1-23,1-24,1-25,1-26,1-27 ］.

4,, it is characterized in that adjacent two are inserted and leave expansion clearance ［ 9 ］ between ［ 1 ］ according to claim 2, the 3 described cross wedge rollings formula roll of inserting.

5, according to claim 2, the 3 described cross wedge rollings formula roll of inserting, the material of it is characterized in that inserting ［ 1 ］ is selected superior alloy steel for use.

6, according to the described cross wedge rolling of the claim 5 formula roll of inserting, the material of it is characterized in that inserting ［ 1 ］ is preferably W6Mo5Cr4V2AL.

7, according to the described cross wedge rolling of the claim 4 formula roll of inserting, it is characterized in that adjacent two gaps of inserting between ［ 1 ］ are preferably 0.3mm.