CN217748748U - Roller applied to 40-90mm diameter bar two-roller straightening machine - Google Patents

Abstract

The utility model discloses a roller for a two-roller straightening machine for bars with a diameter of 40-90 mm, which comprises an upper roller and a lower roller; the upper roller is composed of a roller head a, a roller diameter a and a roller body a; the lower roller is composed of a roller Head b, roll diameter b and roll body b; the roll body a of the upper roll is concave from both sides to the middle; the roll body b of the lower roll is convex from both sides to the middle; the upper roll and the lower roll cooperate to solve the 40‑ Straightening of 90mm diameter bars. The roller profile of the utility model satisfies the bar straightening quality requirement; compared with other roller profiles, the straightening capability is stronger, and the roller change is more convenient.

Description

A kind of roller used for 40-90mm diameter bar two-roll straightening machine

technical field

The utility model belongs to the technical field of two-roller straightening machines, in particular to a roller used in two-roller straightening machines for bars with a diameter of 40-90mm.

Background technique

With the rapid development of industries in various countries, the requirements for the flatness of special steel bar products are getting higher and higher. A straightening machine is a device for straightening bars. The straightening machine squeezes the bar through the straightening roller to change the straightness. Generally, there are two rows of straightening rollers, the number of which varies. There are also two-roll straightening machines, which rely on the angle change of the two rolls (concave in the middle, hyperbolic roll) to straighten materials of different diameters. The main types are pressure straightening machine, balance rolling straightening machine, shoe rolling straightening machine, rotary reverse bending straightening machine and so on. Two-roll straightening, different roll shapes are designed according to different bar diameters to meet the quality requirements for different specifications of bars. The straightening effect of the two-roller straightening on the bar does not rely on the staggered bending between adjacent rollers to cause plastic bending deformation of the workpiece, but depends on the change of the bending curvature inside a pair of roll gaps, so the roll shape is in the bar played a vital role in the straightening process.

Utility model content

The utility model provides a roller applied to a two-roller straightening machine with a diameter of 40-90mm. The technical scheme adopted by the utility model is as follows:

A roll applied to a 40-90mm diameter bar two-roll straightening machine, including an upper roll and a lower roll;

The upper roll is composed of a roll head a, a roll diameter a and a roll body a;

The lower roll is composed of a roll head b, a roll diameter b and a roll body b;

The roll body a of the upper roll is concave from both sides to the middle;

The roll body b of the lower roll is convex from both sides to the middle;

The roll body a is a hollow structure, the roll diameter a is arranged at the center of the roll body a, and the roll diameter a is coaxial with the roll body a;

The roll body b is a hollow structure, the roll diameter b is set at the center of the roll body b, and the roll diameter b is coaxial with the roll body b;

The upper roll and the lower roll cooperate to solve the straightening of 40-90mm diameter rods.

The described roll used in a 40-90mm diameter bar two-roll straightening machine, its preferred solution is that the length of the lower roll body b is 800mm, and R50 rounding is provided on both sides;

The maximum diameter of the roll body b is φ696.799mm, the minimum diameter is 663.002mm, and the angle from the convex point of the roll body to the endpoints on both sides is 4°;

The length of the lower roller is 1633±0.2mm.

The described roll used in a 40-90mm diameter bar two-roll straightening machine has a preferred scheme that the length of the upper roll body a is 800mm, and R50 rounding is provided on both sides;

The maximum diameter of the roll body a is φ688.665mm, the minimum diameter is φ650mm, and its roll body presents a concave roll shape;

The length of the upper roller is 1633±0.2mm.

The beneficial effects and advantages of the utility model are as follows: the roll type meets the quality requirements of bar straightening; the straightening ability is stronger than other roll types, and the roll replacement is more convenient.

Description of drawings

Fig. 1 is the structural representation of upper roller of the utility model;

Fig. 2 is a schematic diagram of the structure of the lower roller of the present invention.

In the figure: 1. Roller head a, 2. Roller diameter a, 3. Roller body a, 4. Roller head b, 5. Roller diameter b, 6. Roller body b.

Detailed ways

As shown in Figure 1-2, a roll used in a 40-90mm diameter bar two-roll straightening machine, including an upper roll and a lower roll;

The upper roll is composed of a roll head a1, a roll diameter a2 and a roll body a3;

Described lower roll is made up of roll head b4, roll diameter b5 and roll body b6;

The roll body a3 of the upper roll is concave from both sides to the middle;

The roll body b6 of the lower roll is convex from both sides to the middle;

The upper roll and the lower roll cooperate to solve the straightening of 40-90mm diameter rods.

The length of the lower roller body b6 is 800mm, and R50 rounding is provided on both sides;

The maximum diameter of the roll body b6 is φ696.799mm, the minimum diameter is 663.002mm, and the angle from the convex point of the roll body to the endpoints on both sides is 4°;

The length of the lower roller is 1633±0.2mm.

The length of the upper roller body a is 800mm, and the rounding of R50 is provided on both sides;

The maximum diameter of the roll body a is φ688.665mm, the minimum diameter is φ650mm, and its roll body presents a concave roll shape;

The length of the upper roller is 1633±0.2mm.

Claims (3)

1. The roller applied to a 40-90mm diameter bar two-roller straightening machine is characterized in that: comprises an upper roller and a lower roller;

the upper roller consists of a roller head a, a roller diameter a and a roller body a;

the lower roller consists of a roller head b, a roller diameter b and a roller body b;

the roller body a of the upper roller is concave from two sides to the middle;

the roller body b of the lower roller is convex from two sides to the middle;

the roller body a is of a hollow structure, the roller diameter a is arranged in the center of the roller body a, and the roller diameter a and the roller body a share the same axis;

the roller body b is of a hollow structure, the roller diameter b is arranged in the center of the roller body b, and the roller diameter b and the roller body b are coaxial;

the upper roller and the lower roller are matched and used for straightening bars with the diameter of 40-90 mm.

2. The roll for a 40-90mm diameter bar two roll straightener of claim 1 wherein: the length of the lower roller body b is 800mm, and R50 rounding circles are arranged on two sides of the lower roller body b;

the maximum diameter of the roller body b is phi 696.799mm, the minimum diameter of the roller body b is 663.002mm, and the angle from salient points of the roller body to end points on two sides is 4 degrees;

the length of the lower roller is 1633 +/-0.2 mm.

3. The roller applied to a 40-90mm diameter bar two-roller straightener of claim 1 is characterized in that: the length of the upper roller body a is 800mm, and R50 rounding circles are arranged on two sides of the upper roller body a;

the maximum diameter of the roller body a is phi 688.665mm, the minimum diameter thereof is phi 650mm, and the roller body is in a concave roller shape;

the length of the upper roller is 1633 +/-0.2 mm.

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