Device and method for rolling forming of spindle nose of vehicle axle of semi-trailer difficult to form

A semi-trailer axle and roll technology, applied in the direction of metal rolling, can solve the problems of reducing the output of rolling mills, increasing energy consumption, etc., and achieve the effects of avoiding secondary rolling, significant technological progress, and obvious economic benefits

Active Publication Date: 2013-08-21
ANHUI UNIVERSITY OF TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Double rolling not only requires an additional set of rolls and energy consumption for secondary heating, but also significantly reduces the output of the rolling mill

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for rolling forming of spindle nose of vehicle axle of semi-trailer difficult to form
  • Device and method for rolling forming of spindle nose of vehicle axle of semi-trailer difficult to form

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] like figure 1 As shown, the axle end rolling device mainly includes a roll box 1 (containing four rolls 3 symmetrically arranged in the circumferential direction of the shaft blank) and a shaft blank rotating box 2 (clamping and driving the shaft blank 5 to rotate). The non-feed end of each roll 3 is provided with two symmetrically distributed hydraulic units 4, through which the axial position of the rolls can be adjusted.

[0021] On the basis of the existing semi-trailer axle head rolling equipment, an axial adjustment device is added to each roll. like figure 2 As shown, axially movable bearings 8 are installed at both ends of each roller, and the axial movement of the rollers is realized by the hydraulic mechanism 4 . The hydraulic mechanism 4 is composed of a hydraulic cylinder 4a, a piston rod 4b, a base 4c of the hydraulic cylinder, and a hydraulic p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a device and method for rolling forming of a spindle nose of a vehicle axle of a semi-trailer difficult to form, and belongs to the technical field of steel pipe hot-diameter shrinkage forming. According to the device and method for rolling forming of the spindle nose of the vehicle axle of the semi-trailer difficult to form, on the basis of the prior art, due to the fact that a roller axial position is adjusted during rolling, the number of deformed areas in a roller cavity is reduced, loads of pushing a roller are reduced, instability and deformation caused by oversized hollow shaft blank stress outside the roller cavity are prevented, and therefore primary rolling forming can be conducted on the spindle nose difficult to form. The key of online adjustment of the roller axial position is that two ends of the roller are provided with bearings capable of moving axially, a hydraulic mechanism is arranged on a non-feeding side shaft end, one end of the hydraulic mechanism is arranged on a bearing seat, and the other end of the hydraulic mechanism is arranged on a boss fixedly connected with a roller shaft. The device and method for rolling forming of the spindle nose of the vehicle axle of the semi-trailer difficult to form not only can carry out forming of an ordinary spindle nose, but also can achieve primary rolling forming of the spindle nose difficult to form, and therefore cost increase caused by secondary rolling is avoided.

Description

technical field [0001] The invention belongs to the technical field of heat-shrinking forming of steel pipes, and in particular relates to a rolling forming device and method for an integral hollow semi-trailer axle head. Background technique [0002] At present, semi-trailer axles are generally integral hollow axles made of seamless steel pipes. Both ends of the axle are generally formed by cross rolling or extrusion. When forming complex and difficult-to-shape shaft heads, due to the large amount of diameter reduction or thickening at the end of the shaft blank, it generally needs to be formed by secondary rolling or multiple extrusions. [0003] Semi-trailer axle cross-rolling generally adopts a device similar to that described in patent 200920237583.4. Four rolls are symmetrically distributed in the circumferential direction of the tube blank, and the rolls are axially aligned. The space between the four rolls forms a roll cavity. After the end of the billet is heated ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21H1/00B21H1/22
Inventor 沈晓辉闫军章静曹杰王会廷
Owner ANHUI UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products