CN203711538U

CN203711538U - Novel guide barrel device for two-roll bar straightening machine

Info

Publication number: CN203711538U
Application number: CN201420045848.1U
Authority: CN
Inventors: 马立东; 张将; 黄庆学
Original assignee: Taiyuan University of Science and Technology
Current assignee: Taiyuan University of Science and Technology
Priority date: 2014-01-24
Filing date: 2014-01-24
Publication date: 2014-07-16
Anticipated expiration: 2024-01-24

Abstract

The utility model belongs to auxiliary equipment on a bar straightening machine, and specifically relates to a novel guide barrel device for a two-roll bar straightening machine. As shown in Fig1, the guide barrel device is characterized in that left and right guide barrels 1, 2 with the same structures are symmetrically arranged on the left and right sides of a bar 5 entering the two-roll bar straightening machine respectively. By taking the guide barrel 1 shown in Fig2 on one side as an example, stepped shafts 3 of the same shapes at the left and right ends are fixedly arranged on the left and right sides of the two-roll bar straightening machine; a cylindrical roller bearing 6 is arranged on a step on the upper middle part of each stepped shaft 3; shaft sleeves 9 are arranged on thin parts at the two ends of each cylindrical roller bearing 6; compression springs 7 are arranged on the shaft sleeves 9; thrust bearings 8 are arranged on the end parts of the shaft sleeves 9; retaining nuts 10 are arranged on the outer sides of the thrust bearings 8; the guide barrel 1 of which central holes in the two ends are stepped holes is sleeved on the stepped shaft 3; the outer ring of each cylindrical roller bearing 6 is in tight fit with the inner wall of the guide barrel 1, the end part of each cylindrical roller bearing 6 is pressed against each compression spring, and the inner ring of each cylindrical roller bearing 6 is in tight fit with each stepped shaft 3; the inner rings of the thrust bearings 8, the shaft sleeves and the cylindrical roller bearings 6 are in grease lubrication.

Description

Novel bar two-roll reeler guide roller device

Technical field

The utility model belongs to the auxiliary equipment on bar straightener.Be specifically related to a kind of bar two-roll reeler guide roller device.

Background technology

Steel industry belongs to raw material industry, is the important component part of basic industries system, and can special steel be to weigh a country become the important symbol of iron and steel power.Bar accounts for the largest percentage in special steel, but high added value proportion is still lower, along with the fast development of mechanical industry and each department of national economy, particularly automobile industry, bar quality and precision is had higher requirement.At present, both at home and abroad in the time producing close tolerance bar, aligning is a very important procedure, and the guide plate of smoothing roll both sides plays a very important role to improving flattening precision, but the shortcoming that adopts guide plate arrangement to exist is serious wear not only, the surface quality of impact aligning bar, has brought a lot of troubles to production, but also has reduced production efficiency.

Summary of the invention

The purpose of this utility model is to provide a kind of guide roller device of bar two-roll reeler, can effectively overcome the shortcoming that prior art exists.

The utility model is to realize like this, its feature as shown in Figure 1, the left and right sides at the bar 5 that enters two roller bar straighteners is provided with respectively the left and right guide 1 that structure is identical symmetrically, 2, now taking the guide 1 of a side as example, it is constructed as shown in Figure 2, the multidiameter 3 that its two ends, left and right shape is identical is fixedly mounted on the left and right sides of bar two-roll reeler, on multidiameter 3, the step place at middle part is provided with cylinder roller bearing 6, the thin portion in its two ends is provided with axle sleeve 9 again, Compress Spring 7 is installed on axle sleeve 9, in the end of axle sleeve 9, thrust bearing 8 is installed, in the outside of thrust bearing 8, hold-down nut 10 is housed, the centre bore at two ends is that the guide 1 in notch cuttype hole is sleeved on multidiameter 3, and the inwall of the outer ring of cylinder roller bearing 6 and guide 1 is tight fit, and end and Compress Spring are inconsistent, and its inner ring and multidiameter 3 are tight fit, the inner ring of thrust bearing 8 and axle sleeve, cylinder roller bearing 6 are grease lubrication.

Advantage of the present utility model and good effect are:

1, compare with guide plate arrangement, the present invention can be converted to rolling friction by the sliding friction of tangential direction between bar and guide plate, reduces attrition, improves surface quality.

2, adopt cylinder roller bearing and outer ring axle spring inconsistent, can reduce the wearing and tearing of guide in aligning direction, improve the service life of guide.

Brief description of the drawings:

Fig. 1 is the location drawing of bar and guide in aligning process.

Fig. 2 is at guide structure cutaway view.

Fig. 3 is the structure diagram of multidiameter and guide.

In figure: 1,2-left and right guide, 3,4-left and right multidiameter, 5-bar, 6-cylinder roller bearing, 7-Compress Spring, 8-thrust bearing, 9-axle sleeve, 10-hold-down nut.

Detailed description of the invention:

In the process of on bar two-roll reeler, bar 5 being aligned as shown in Figure 1, 2, the motion state of bar 5 is that rotation limit, limit moves forward, and simultaneously because bar exists amount of deflection, meeting and left and right guide generation rolling friction, alleviate the shortcoming that sliding friction brings.

Claims

1. a novel two-roll reeler guide roller device, it is characterized in that the left side in the bar that enters two roller bar straighteners (5), right both sides are provided with respectively the left side that structure is identical symmetrically, right guide (1, 2), now taking the guide (1) of a side as example, its structure is left, the multidiameter (3) that right two ends shape is identical is fixedly mounted on the left and right sides of bar two-roll reeler, step place at the upper middle part of multidiameter (3) is provided with cylinder roller bearing (6), in the thin portion in its two ends, axle sleeve (9) is installed, Compress Spring (7) is installed on axle sleeve (9), in the end of axle sleeve (9), thrust bearing (8) is installed, in the outside of thrust bearing (8), hold-down nut (10) is housed, the centre bore at two ends is that the guide (1) in notch cuttype hole is sleeved on multidiameter (3), the inwall of the outer ring of cylinder roller bearing (6) and guide (1) is tight fit, end and Compress Spring are inconsistent, and its inner ring and multidiameter (3) are tight fit, the inner ring of thrust bearing (8) and axle sleeve, cylinder roller bearing (6) are grease lubrication.