CN102966657A

CN102966657A - Quick locking mechanism

Info

Publication number: CN102966657A
Application number: CN2012104759731A
Authority: CN
Inventors: 张彬; 杨辉; 鲍龙祥; 李�浩
Original assignee: AVIC Beijing Precision Engineering Institute for Aircraft Industry
Current assignee: AVIC Beijing Precision Engineering Institute for Aircraft Industry
Priority date: 2012-11-21
Filing date: 2012-11-21
Publication date: 2013-03-13
Anticipated expiration: 2032-11-21
Also published as: CN102966657B

Abstract

The invention relates to a connecting structure for quickly locking two parts, in particular to a quick locking mechanism. A locking structure combining an oblique plane and a locking thread is adopted, the quick locking of two workpieces to be locked is realized, and the quick locking mechanism is self-locked and anti-loose after being locked. In the quick locking mechanism, a compression spring is mounted under a locking shaft, the locking shaft rotates in the locking process, when the locking force is excessive due to misuse, the compression spring can play the role of preventing a locking nut from being deadly blocked in the screwing process, and the effect of protecting the thread is realized. The axial displacement of the whole quick locking mechanism in the locking process is the superposition of spiral displacement of the locking shaft and the oblique plane rising displacement of an oblique pressing block, and the locking efficiency is greatly improved; in the locking process, the lower surface of the locking nut presses the upper locking oblique plane of the oblique pressing block, with the effect of a spring gasket, the quick locking mechanism is self-locked and anti-loose after being locked; a special tool in the quick locking mechanism can take the effect of dismantling resistance and prevent the dismantling due to misoperation.

Description

A kind of quick-locking mechanism

Technical field

The present invention relates to a kind of linkage structure that can carry out to two parts quick locking, relate in particular to a kind of quick-locking mechanism.

Background technique

Locking is to be undertaken by the lock screw with regular screw threads between common two parts, and screw 13 passes workpiece 14, is fixed on the workpiece 15, add spring washer when locking, but this locking mode, after repeatedly repeating locking, thread damage can occur, affect locking function; And this locking mode is because only by screw lock, locking efficient is low.

Summary of the invention

The purpose of this invention is to provide the not fragile and high quick-locking mechanism of locking efficient of a kind of screw thread.

Technical solution of the present invention is, locking mechanism comprises lock sleeve 2, lock shaft 3, locking nut 4, briquetting 5, inner nut 7, spring washer 8, Compress Spring 9, baroclinic block 10, locking tool 11, screw 12, Compress Spring 9 is installed in lock sleeve 2 center holes bottom, be supported on the lower end surface of lock shaft 3, briquetting 5 passes lock shaft 3 with the center hole of spring washer 8, inner nut 7 is fixed on the spring washer 8, lock sleeve 2 is fixed in the tapped hole of workpiece A1 by the screw thread on its external cylindrical surface; The mounting hole of baroclinic block 10 bottoms is fixed on the workpiece B6 lower end surface by screw 12, the upper-end surface of baroclinic block 10 is two locking inclined-planes that the angle of inclination is identical, these two inclined-planes are with the excessively face boundary of the center line of baroclinic block, the top on two inclined-planes is all with chamfering 17, and the center hole of baroclinic block 10 is socketed on the lock shaft 3; Locking nut 4 is fixed on the outside thread of lock shaft 3 and places the top of baroclinic block 10 by inner bolt hole, with chamfering 16, the angle of inclination on the locking inclined-plane of baroclinic block 10 is less than the angle value of locking nut 4 with the Arctan of baroclinic block 10 contact surface friction ractor μ in the left-hand thread direction for the locking end face of locking nut 4; Locking tool 11 is enclosed within on the locking nut 4.

The advantage that the present invention has and beneficial effect

In this mechanism, a Compress Spring has been installed below lock shaft, lock shaft rotates in the locking process in the locking process, and when improper use caused coupling mechanism force excessive, it was stuck to play when preventing from tightening locking nut, the effect of protection screw thread.The inclined-plane of the screw displacement that axial displacement is lock shaft in the locking process of whole mechanism and baroclinic block rises the stack of displacement, and locking efficient improves greatly; During locking, the locking nut lower surface is pressed on the upper locking inclined-plane of baroclinic block, adds the effect of a spring washer, after the total locking, is self-locking and locking; The locking tool of special use can play certain tamper effect in the mechanism, prevents the misoperation dismounting.

Description of drawings:

Fig. 1 is the locking mode schematic representation of prior art;

Fig. 2 is quick-locking mechanism structural representation of the present invention, and wherein, 2-a is the sectional view of quick-locking mechanism structure, and 2-b is the 2-a plan view;

Fig. 3 is baroclinic block of the present invention, locking nut and locking tool schematic representation;

Fig. 4 is locking state schematic representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention is elaborated.

This structure is mainly by lock sleeve 2, lock shaft 3, locking nut 4, baroclinic block 10 compositions such as grade;

Locking nut 4 is by in screw thread and the lock shaft 3 locking processes, contacts with baroclinic block 10 with the inclined-plane, and the axial displacement of locking process is the stack that rises displacement on screw displacement and the inclined-plane, for guarantee to lock reliably, in the structure with locking spring washer 8.

Baroclinic block 10 is fixed on the workpiece B6 by screw 12, and lock sleeve 2 is fixed in the tapped hole of workpiece A1 by the screw thread on its external cylindrical surface;

Compress Spring 9 is installed in lock sleeve 2 center holes bottom, is supported on the lower end surface of lock shaft 3, and briquetting 5 passes lock shaft 3 with the center hole of spring washer 8, and inner nut 8 is fixed on the center hole top of lock sleeve 2;

Locking nut 4 is fixed on by inner bolt hole on the outside thread of lock shaft 3, and with chamfering 16, the reverse slope direction rotation moves locking nut 4 locking end faces when being convenient to unclamp at loose hand of spiral;

The outer surface Spielpassung of the internal surface of locking tool 11 and locking nut 4;

The locking bevel angle of baroclinic block 10, less than the angle value of locking nut 4 with the Arctan of baroclinic block 10 contact surface friction ractor μ, the top on baroclinic block 10 inclined-planes is with chamfering 17, and the reverse slope direction rotation moves when being convenient to unclamp.

The locking procedure declaration:

Locking mechanism is used for the quick locking between realization workpiece A1 and the workpiece B6;

Baroclinic block 10 is fixed on the workpiece B6 by screw 12, does as a wholely, drives locking nuts 4 rotations by locking tool 11, and the internal thread of locking nut 4 screws the outside thread of lock shaft 3, is fixed on fast on the workpiece A1;

Lock shaft 3 is upwards strained and is pressed on the pressing spring packing ring 8 during locking, and spring washer 8 upwards leans against on the lower surface of inner nut 7, and workpiece A1 is strained;

Compress Spring 9 is supported on the lower surface of lock shaft 3, and it is stuck to prevent that lock shaft 3 from rotating and playing when preventing from tightening locking nut 4 in the locking process, the effect of protection screw thread.

The axial displacement of locking process is the stack that rises displacement on the inclined-plane of the screw displacement of lock shaft 3 and baroclinic block 10, and locking efficient improves greatly;

During locking, locking nut 4 lower surfaces are pressed on the upper locking inclined-plane of baroclinic block 10, add the effect of spring washer 8, after the total locking, are self-lockings and locking;

Special-purpose locking tool 11 can play certain tamper effect.

Claims

1. quick-locking mechanism, it is characterized in that, locking mechanism comprises lock sleeve (2), lock shaft (3), locking nut (4), briquetting (5), inner nut (7), spring washer (8), Compress Spring (9), baroclinic block (10), locking tool (11), screw (12), Compress Spring (9) is installed in lock sleeve (2) center hole bottom, be supported on the lower end surface of lock shaft (3), briquetting (5) passes lock shaft (3) with the center hole of spring washer (8), inner nut (7) is fixed on the spring washer (8), lock sleeve (2) is fixed in the tapped hole of workpiece (A1) by the screw thread on its external cylindrical surface; The mounting hole of baroclinic block (10) bottom is fixed on workpiece (B6) lower end surface by screw (12), the upper-end surface of baroclinic block (10) is two locking inclined-planes that the angle of inclination is identical, these two inclined-planes are with the excessively face boundary of the center line of baroclinic block, the top on two inclined-planes is all with chamfering (17), and the center hole of baroclinic block (10) is socketed on the lock shaft (3); Locking nut (4) is fixed on the outside thread of lock shaft (3) and places the top of baroclinic block (10) by inner bolt hole, with chamfering (16), the angle of inclination on the locking inclined-plane of baroclinic block (10) is less than the angle value of locking nut (4) with the Arctan of baroclinic block (10) contact surface friction ractor μ in the left-hand thread direction for the locking end face of locking nut (4); Locking tool (11) is enclosed within on the locking nut (4).