CN201027803Y

CN201027803Y - 1-shaped damping rotating shaft

Info

Publication number: CN201027803Y
Application number: CNU2007201040622U
Authority: CN
Inventors: 陆勤; 许军
Original assignee: ZHEJIANG VOSO TECHNOLOGY Co Ltd
Current assignee: Kunshan Voso Hinge Electronic Technology Co., Ltd.
Priority date: 2007-03-30
Filing date: 2007-03-30
Publication date: 2008-02-27
Anticipated expiration: 2017-03-30

Abstract

The utility model provides a straight damping rotor axis, comprising a rotor axis, an axis sleeve and a fixing axis which are orderly connected with each other, wherein the axis sleeve provided with an open slot along the axial direction has one end provided with a protruding sector pole, an inner wall of the sector pole are closely matched with an outer wall of a hollow semicircular arc arranged on one end of the fixing axis, the axis sleeve is made of high elasticity metallic materials; one end of the rotor axis is a solid cylinder, the outer diameter of a front end of the solid cylinder is a little smaller than the inner diameter of the hollow semicircular arc, an outer wall of the front end of the solid cylinder is closely matched with an inner wall of the hollow semicircular arc, the front end of the solid cylinder is provided with a positioning pin which is used to control the opening angle of the rotor axis and the fixing axis. The utility model has the advantages of simple and reliable structure, small volume and light weight, and is quite suitable for mass production.

Description

The yi word pattern Damping rotation shaft

Technical field

The utility model relates to a kind of parts of needs rotation and the connecting element between the fixed component, particularly a kind of Damping rotation shaft.

Background technique

Damping rotation shaft is as connecting element, be widely used in the connecting element of image display screen and fuselage in notebook computer, digital camera equipment and the portable DVD player machine, and the connecting element etc. of extendable swivel antenna and base among the GPS, it can make liquid crystal display panel, be parked in when antenna is opened and need on the position.Current, generally adopt the drive fit structure of rotating shaft and axle sleeve, employing is also arranged at rotating shaft end fluting, and make the rotating shaft spreading with screw, increase the structure of frictional damping.But the problem of these rotating shaft maximums is to use the life-span short, after long-term the use, all can cause damping force to weaken owing to the fretting wear structure, and the damping force between rotating shaft and the axle sleeve can not get compensation, will not reach in the effect that needs the position to stop; Though a kind of structure in back can be adjusted the purpose that screw reaches increases damping by dismounting equipment, troublesome poeration is adjusted in dismounting; The structure moment of torsion adjustable range of these a few class Damping rotation shafts is little, too high to the part processing precision requirement.

The model utility content

In order to overcome above-mentioned defective, the utility model provides a kind of simple in structure, long service life, the moment of torsion adjustment range is big and the lower yi word pattern Damping rotation shaft of product parts required precision.

A kind of yi word pattern Damping rotation shaft, comprise the rotating shaft, axle sleeve and the stationary axle that are connected in turn, it is characterized in that described axle sleeve is provided with opening slot vertically, one end is provided with outstanding fan-shaped post, the outer wall of the inwall of described fan-shaped post and the hollow semi-circle body of described stationary axle one end closely cooperates together, and described axle sleeve is made for the high elasticity metallic material; Described rotating shaft one end is a solid cylinder, the front end external diameter of described solid cylinder is slightly less than the internal diameter of described hollow semi-circle body, the front end outer wall of described solid cylinder and the inwall of described hollow semi-circle body closely cooperate together, and the front end of described solid cylinder has the locating stud of a control rotating shaft and stationary axle folding angle.

The utility model yi word pattern Damping rotation shaft has adopted the axle sleeve structure of being made by the high elasticity metallic material to connect between rotatingshaft and stationary axle, friction area and damping force have been increased greatly, in use for some time simultaneously, though certain wearing and tearing are arranged between rotating shaft and the axle sleeve, but elastomeric axle sleeve still can keep clamping force constant, promptly can compensate the damping force between rotating shaft and the axle sleeve automatically, thereby prolong the working life of Damping rotation shaft widely, the interconnective parts of often opening are firmly stopped in the needs position; Under situation about not dismantling, have bigger moment of torsion adjustment range, part processing precision is required also to obtain the reduction of certain amplitude; Reach the purpose of controlling the folding angle by locating stud, the angle of rotatable parts folding is controlled in the scope that needs; It is simple and reliable for structure simultaneously, and volume is little in light weight, is highly suitable for producing in enormous quantities.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model yi word pattern Damping rotation shaft STRUCTURE DECOMPOSITION;

Fig. 2 is the structural representation that the utility model yi word pattern Damping rotation shaft is installed;

Fig. 3 is along the X1-X1 line sectional view among Fig. 2;

Fig. 4 is along the X3-X3 line sectional view among Fig. 2;

Fig. 5 is along the X2-X2 line sectional view among Fig. 2.

Embodiment

By Fig. 1 and Fig. 2 as seen, the utility model yi word pattern Damping rotation shaft, comprise the rotating shaft 1 that is connected in turn, axle sleeve 2 and stationary axle 3, one end of axle sleeve 2 is provided with outstanding fan-shaped post 5, the outer wall of the inwall of fan-shaped post 5 and the hollow semi-circle body 7 of stationary axle 3 one ends closely cooperate together (as Fig. 4), rotating shaft 1 one ends are solid cylinder 6, the front end external diameter of solid cylinder 6 is slightly less than the internal diameter of described hollow semi-circle body 7, the front end outer wall of solid cylinder 6 and the inwall of hollow semi-circle body 7 closely cooperate together (as Fig. 5), and the front end of solid cylinder 6 has the locating stud 4 (as Fig. 3) of a control rotating shaft and stationary axle folding angle.Axle sleeve 2 is provided with opening slot 8 vertically, make by the high elasticity metallic material, friction area and damping force have been increased greatly, in use for some time simultaneously, though certain wearing and tearing are arranged between rotating shaft and the axle sleeve, elastomeric axle sleeve still can keep clamping force constant, promptly can compensate the damping force between rotating shaft and the axle sleeve automatically, thereby prolong the working life of Damping rotation shaft widely, part processing precision is required also to obtain the reduction of certain amplitude; The utility model yi word pattern Damping rotation shaft reaches the purpose of controlling the folding angle by locating stud, and the angle of rotatable parts folding is controlled in the scope that needs; It is simple and reliable for structure simultaneously, and volume is little in light weight.

Above-described embodiment is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; relate under the scheme prerequisite not breaking away from the utility model; various modification and improvement that those skilled in the art make the technical solution of the utility model; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.

Claims

1. yi word pattern Damping rotation shaft, comprise the rotating shaft (1), axle sleeve (2) and the stationary axle (3) that are connected in turn, it is characterized in that described axle sleeve (2) is provided with opening slot (8) vertically, one end is provided with outstanding fan-shaped post (5), the outer wall of the inwall of described fan-shaped post (5) and the hollow semi-circle bodies of described stationary axle (3) one ends (7) closely cooperates together, and described axle sleeve (2) is made for the high elasticity metallic material; Described rotating shaft (1) one end is solid cylinder (6), the front end external diameter of described solid cylinder (6) is slightly less than the internal diameter of described hollow semi-circle body (7), the inwall of the front end outer wall of described solid cylinder (6) and described hollow semi-circle body (7) closely cooperates together, and the front end of described solid cylinder (6) has the locating stud (4) of a control rotating shaft and stationary axle folding angle.