Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anti-loose and fastening connecting method and system through thread extrusion

A connection method and a connection system technology, applied in the field of component connection methods and systems, can solve the problems of complex disassembly, large space for connected parts, and high installation costs

Inactive Publication Date: 2013-10-16
MEISHAN CRRC FASTENING SYST CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second purpose is to solve the problem that the installation tools and disassembly of existing blind rivet fasteners are complicated and the installation cost is high; and there is a large space on one side of the connected parts, and it is difficult to complete the installation in some special environments

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
  • Anti-loose and fastening connecting method and system through thread extrusion
  • Anti-loose and fastening connecting method and system through thread extrusion
  • Anti-loose and fastening connecting method and system through thread extrusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The thread extrusion anti-loosening fastening method provided in this embodiment 1 is A. The anti-rotation torque M obtained by the joint action of the new design of the thread profile of the nut and the bolt, the soft and hard configuration of the nut and the bolt material, and the new size of the nut. 1 . The corresponding thread extrusion anti-loosening fastening connection system is also A. The new design of the nut and bolt thread profile, the soft and hard configuration of the nut and bolt material, and the new size of the nut all have three.

[0033] See figure 1 -- Figure 4 , the present embodiment 1 thread extrusion anti-loosening fastening method has the following steps:

[0034] 1) see figure 1 , insert the bolt 1 from the front side A of the two connected parts 4 and 3 into the installation hole 4.1. 2) see figure 2 , screw the nut 2 on the outside of the bolt 1 from the rear side B of the two connected parts. 3) see image 3 , Use a torque wrench ...

Embodiment 2

[0045] The thread extrusion anti-loosening fastening method provided in this embodiment 2 is B. The new design of the thread profile of the nut and the bolt and the soft and hard configuration of the nut and the bolt material work together to obtain the value of the anti-rotation torque M2. Correspondingly provided thread extrusion anti-loose fastening connection system is B. Nut and bolt thread profile new design and soft and hard configuration of both nut and bolt materials.

[0046] Embodiment 2 is identical to Embodiment 1 except for the following features.

[0047] The value of the anti-rotation torque M2 in the thread extrusion anti-loosening fastening method of the second embodiment is shown in the following table 6:

[0048] Table 6

[0049]

[0050] It can be seen from Table 6 that the obtained anti-rotation torque M 2 Is the value range of anti-rotation torque in Table 1 M 0 the lower limit value of .

[0051] In this embodiment 2, the thread extrusion anti-lo...

Embodiment 3

[0055] The thread extrusion anti-loosening fastening method provided in Example 3 is C. The new design of the thread profile of the nut and the bolt and the new size of the nut work together to obtain the value of the anti-rotation torque M3. Its corresponding thread extrusion anti-loosening fastening connection system is C. Both the new design of the thread profile of the nut and the bolt and the new size of the nut have both.

[0056] Embodiment 3 is identical to Embodiment 1 except for the following features.

[0057] The value of the anti-rotation torque M3 in the steps of the thread extrusion anti-loosening fastening connection method is the value in Table 7.

[0058] Table 7

[0059]

[0060] It can be seen from Table 7 that the obtained anti-rotation torque M 3 Is the value range of anti-rotation torque in Table 1 M 0 upper bound value of .

[0061] In this embodiment 3, the screw extrusion anti-loosening fastening connection system adopts the new design of the n...

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

PropertyMeasurementUnit
Vickers hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an anti-loose and fastening connecting method and system through thread extrusion. The method comprises the following step that a torque wrench is used for screwing a nut on a bolt until a torque value reaches screw-stopping torque during deformation. The system is that a novel thread form design facilitating thread extrusion deformation fastening when the nut and the bolt are connected is provided, or / and materials with different hardness are designed; a scheme combining novel sizes of the thread form, the materials and the nut is provided; and in the system, the hardness of the nut is lower than that of the bolt, the thread is thicker, a bolt thread can be embedded into the nut thread without clearance for deadlock after mounting is completed, and the anti-loose purpose is achieved. The bolt adopts an arc thread form with a reduced thread height, an enlarged thread thickness and a widened thread root, so that the fatigue strength is improved, the service life is prolonged, and the mounting is fast. A novel nut size is adopted, so that the fatigue resistance is high, and the service life is long. Only one torque wench is required during mounting, the method and the system combine advantages of a deformation fastening effect of a cold-drawn rivet and simple connection of the bolt, so that the method and the system can be used for a railway, a heavy vehicle, a ship, a mine, electrical equipment and the like, and particularly occasions where interference exists in a rivet tool and the like.

Description

[0001] (1) Technical field: The present invention relates to a component connection method and system, which are mainly used in occasions where certain fastening strength is required or vibration conditions are required, and the space on both sides of the connected parts is not too large or there is interference. It belongs to the category of vehicle accessories and components (B60R). (two) background technology: [0002] In the existing fastening connection industry, if conventional bolt standard parts are used, even if high-strength grade 10.9 bolts are used, under special working conditions, problems such as weak anti-vibration performance, insufficient anti-loosening performance, and low fatigue strength will cause problems. Frequent connection failures occur. [0003] In recent years, cold-drawn riveting has been adopted in the connection of key parts such as trucks, automobiles and bridges, and has replaced the past hot riveting and ordinary bolt connection, which effect...

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): F16B39/22F16B39/30
Inventor 熊光连伏凯胡方年刘宇刘洋张荣贾云龙代广成赵祥云
Owner MEISHAN CRRC FASTENING SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com