Mechanical meshing high-strength bolt assembly for steel sheets

A technology of high-strength bolts and mechanical engagement, applied in mechanical equipment, connecting components, gaskets, etc., can solve problems such as insufficient pressure bearing capacity, heavy welding workload on site, residual deformation of thin-walled components, etc.

Pending Publication Date: 2021-04-09
WUHAN UNIV
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, thin steel plates are usually connected by bolts, but there are the following problems when connecting thin steel plates with bolts: 1) The anti-slip coefficients of the steel friction surfaces treated in different ways given in the current specifications are all above 0.3, while thin steel plates There is a galvanized layer on the surface for antirust. Relevant experimental studies have shown that the anti-slip coefficient of galvanized thin steel sheets is only about 0.1, so the bolts used to connect thin steel sheets will slip early; 2) thin steel sheets usually Very thin, too thin plate ma

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
  • Mechanical meshing high-strength bolt assembly for steel sheets
  • Mechanical meshing high-strength bolt assembly for steel sheets
  • Mechanical meshing high-strength bolt assembly for steel sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as Figure 1 to Figure 3 As shown, a mechanically engaged high-strength bolt assembly for thin steel plates includes a bolt 1, a convex washer 2, a concave washer 3, and a nut 5 for pre-tightening the convex washer 2 and the concave washer 3, and the convex washer 2 faces one side of the thin steel plate. The side is provided with a protruding portion in the shape of a revolving body, and the concave washer 3 is provided with a groove suitable for the convex washer 2, and a thin steel plate 5 and a thin steel plate 2 6 are fixedly fitted between the convex washer 2 and the concave washer 3 (in this paper In the embodiment, there are only two layers of thin steel plates, which may actually be larger than the two layers of thin steel plates). The first thin steel plate 5 and the second thin steel plate 6 form a mechanical interlocking effect u...

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 mechanical meshing high-strength bolt assembly for steel sheets. The mechanical meshing high-strength bolt assembly comprises a bolt, gaskets sleeving a bolt rod, and a nut for pre-tightening the gaskets and a bolt head, wherein the gaskets comprise the convex gasket close to the bolt head and the concave gasket close to the nut, the convex gasket and the concave gasket are provided with matched press patterns, at least two layers of steel sheets are fixed between the convex gasket and the concave gasket in a fitting mode, and the steel sheets form a mechanical meshing effect under the pre-tightening effect of the convex gasket and the concave gasket. On the basis of the adoption of bolt connection, the connecting performance of the bolt is improved, compared with traditional bolt connection, the connecting rigidity and the shear bearing capacity are improved, and the mechanical meshing high-strength bolt assembly is suitable for large-batch and large-scale production.

Description

technical field [0001] The invention relates to a bolt assembly, in particular to a mechanically engaged high-strength bolt assembly for thin steel plates. Background technique [0002] At present, thin steel plates are usually connected by bolts, but there are the following problems when connecting thin steel plates with bolts: 1) The anti-slip coefficients of the steel friction surfaces treated in different ways given in the current specifications are all above 0.3, while thin steel plates There is a galvanized layer on the surface for antirust. Relevant experimental studies have shown that the anti-slip coefficient of galvanized thin steel sheets is only about 0.1, so the bolts used to connect thin steel sheets will slip early; 2) thin steel sheets usually Very thin, too thin plate makes the connection prone to plate pressure failure. [0003] When subjected to dynamic loads such as wind loads, the low slip resistance coefficient and insufficient pressure bearing capacit...

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): F16B13/10F16B43/00
CPCF16B13/04F16B43/00F16B13/10
Inventor 杜新喜吴杨威袁焕鑫邱鑫
Owner WUHAN UNIV
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