CN2082790U

CN2082790U - Cone cover fastening nut

Info

Publication number: CN2082790U
Application number: CN 90214494
Authority: CN
Inventors: 黄汉文
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-08-31
Filing date: 1990-08-31
Publication date: 1991-08-14

Abstract

The utility model relates to a cone cover fastening nut which comprises a bush with conicity and clamping grooves and a nut with grooves. At the time of being used, the bush is inserted between a wheel and a shaft; the nut is screwed on the shaft and is tightly screwed. The nut can just be loosened by a wrench at the time of being disassembled. The utility model has the advantages of convenient operation, good fit relation between the wheel and the shaft.

Description

Cone cover fastening nut

The utility model belongs to a kind of fastening piece.

In mechanical transmission, the train part is more common problem with the secure fit of axle, usually, cooperates in working order firmly for making wheel and axle, and simple and convenient during dismounting, modes such as Xiao or keyway are adopted in the connection of wheel, axle mostly.As shown in Figure 1, all be milled with groove in the end of axle 1 with the endoporus of taking turns 2.During installation, will take turns 2 and be enclosed within on the axle 1, and, and, use Cock screw 4 or gland nut 5 fastening again, with anti-loose with in key 3 embedded grooves to good keyway.Because key 3 is generally tighter with cooperating of keyway, must knock with hammer during assembling, and is therefore cumbersome during dismounting, generally need wheel 2 outwards to be pulled out with hammer, three-jaw instrument etc.As wheel, when between centers has produced corrosion, must knock wheel with strength can dismantle, very easily damage wheel, and, during operation certain space need be arranged, as need three-jaw pull tool, requisite space is bigger, during as if axle 1 and wheel 2 excesssive gaps, after tightening, Cock screw 3 promptly produces train part 2 to a lateral deviation heart, the concentricity that has a strong impact on axle and take turns.

The purpose of this utility model is the novel tapered sleeve tightening nut of a kind of easy accessibility of design, good concentricity.

Its gland nut that mainly has the lining of draw-in groove and tapering by one and have a draw-in groove combines, wherein the pattern of lining can be three kinds of closed loop, open loop type or open-close types, its tapering also can be inside and outside tapering or external taper, gland nut can be all-in-one-piece, also can be made up of retaining nut, positioning screwn and setscrew nut.

The utility model has the advantages that:

1, easy accessibility.Installation or removal need not be used the big and heavy instrument of three-jaw instrument or hammer and so on.

2, coaxality is good, and the lining matching property that has tapering is better.

3, compact mechanical structure, reasonable, dexterous to mechanical location, the tight slightly environmental conditions in space, equipment place, is used the even more ideal convenience of this product.

4, easy damaged train part not is especially to because of the not easily detachable workpiece better effects if of corrosion.

5, form the standard series product easily, versatility is good.

Fig. 1 for formerly take turns, the assembly structure figure of axle.

Fig. 2 is a kind of structural drawing of the present utility model.

Fig. 3 is an another kind of structural drawing of the present utility model.

As shown in Figure 2: lining 6 has external taper, at its big end draw-in groove is arranged, gland nut is by retaining nut 7, positioning screwn 9 and setscrew nut 8 are formed, retaining nut 7 can match with the draw-in groove on the lining 6 with the draw-in groove that setscrew nut constitutes, during use, the lining 6 of band external taper is between axle 1 and wheel 2, the retaining nut 7 that the end has a seam is enclosed within the big end of lining 6, screwed in place nut 8, make lining 6 clamp-on wheel, between centers, to twist motionless till, again with positioning screwn 9 with retaining nut 7 and setscrew nut 8 location.During dismounting, only need unscrew gland nut with spanner and get final product.

Fig. 3 is another kind of structural type, be characterized in that gland nut and retaining nut are an integral body, lining then is an opposite opened, as shown in the figure, the big end that has the lining 6 of tapering has an inside groove, and also having on nut 10 can draw-in groove with matching, during use, earlier the groove on the opposite opened lining 6 is aimed at the groove on the nut 10, again their is inserted wheel, between centers, then fastening nut 10 to wheel shaft fastened till.On lining, mill an axial groove, just constituted the open loop type lining.

As another pattern, above-mentioned two kinds of linings also can be the inside and outside patterns that tapering is all arranged.

Claims

1, a kind of taper sleeve type tightening nut is made of lining 6 and gland nut, it is characterized in that lining 6 has tapering, at lining 6 big ends draw-in groove is arranged, and an end of gland nut has draw-in groove.

2, nut according to claim 1, it is characterized in that gland nut is made up of retaining nut 7, setscrew nut 8 and positioning screwn 9, the seam of retaining nut 7 one ends and setscrew nut 8 constitute a draw-in groove, and the lining 6 of band external taper or inside and outside tapering is all-in-one-piece.

3, nut according to claim 1 is characterized in that gland nut is all-in-one-piece, and the lining of band external taper or inside and outside tapering is an opposite opened.