CN201554740U

CN201554740U - Vehicle wheel hub fastening combined piece

Info

Publication number: CN201554740U
Application number: CN2009201816666U
Authority: CN
Inventors: 陈国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-11
Filing date: 2009-12-11
Publication date: 2010-08-18
Anticipated expiration: 2019-12-11

Abstract

The utility model discloses a vehicle wheel hub fastening combined piece comprising a screw rod, a gasket, a hex nut and a guide nut. Two ends of the screw rod are respectively provided with an external thread; the hex nut and the guide nut are respectively in threaded connection with the external threads at both ends of the screw rod; the gasket is sheathed on the screw rod and is arranged near the guide nut; and the guide nut comprises a threaded connection part and a guide part. As the vehicle wheel hub fastening combined piece adopts two nuts (the hex nut and the guide nut) to be matched with the screw rod for use, the mounting is more convenient; and the guide nut comprises the threaded connection part and the guide part which are mutually and movably sheathed, and the guiding performance is better by the matching of the guide nut with the gasket.

Description

The fastening assembly parts of automobile-used wheel hub

Technical field

The utility model relates to a kind of fastening piece, particularly relates to the fastening assembly parts of a kind of automobile-used wheel hub.

Background technique

The wheel hub of truck with realize being connected by bolt 1 ' and nut 2 ' (shown in Figure 1A) between the steel ring.For the convenience of installing and fastening after stability, generally all be provided with stability plane 12 ' (shown in Figure 1B) on the side of bolt 1 ' head 11 ', cylindrical bolt head 11 ' is vertically cut a part of circular arc, form parallel breach (shown in Fig. 1 C), the stabilising surface of this stability plane 12 ' and wheel hub 10 ' lean (shown in Fig. 1 D) during installation, can prevent that bolt 1 ' rotates thereupon in the process of fastening nut 2 ', fastening back is difficult for loosening, but the stability plane 12 ' of this bolt head 11 ' portion is too little with wheel hub 10 ' the contacted area, the stabilising surface of wheel hub 10 ' can cut in bolt head 11 ' portion in the process of fastening nut 2 ', thereby cause bolt 1 ' loosening rotation in wheel hub 10 ' hole, bolt 1 ' after loosening very easily is cut off under the situation of alternate load, thereby causes wheel hub 10 ' bolt short 1 ' working life, wheel hub 10 ' scrappage height.

The model utility content

The purpose of this utility model is to provide a kind of difficult drop-off, good, the easy fastening assembly parts of automobile-used wheel hub of assembling of tightness.

For achieving the above object, technical solution of the present utility model is:

The utility model is the fastening assembly parts of a kind of automobile-used wheel hub, and it is made up of screw rod, packing ring, hexagon nut, spigot nut; The two ends of described screw rod offer outside thread respectively, and described hexagon nut and spigot nut are screwed onto respectively on the outside thread at screw rod two ends; Described gasket sleeve is connected on the screw rod and close spigot nut; On the circumferential surface that is connected epimere of screw rod and hexagon nut, offer longitudinal stripe around full week; Described spigot nut is made up of spiro union portion and guide portion; The central authorities of described spiro union portion have tapped hole and cooperate with the outside thread of screw rod, the one end is provided with annular flange flange, this annular flange flange activity is nested with in the annular groove of guide portion, contract in the aperture ora terminalis of annular groove, form confined planes, make guide portion relatively spiro union portion radially can from annular flange flange, not deviate from axial float.The end face of one end of described guide portion is provided with the evagination sphere that cooperates with packing ring indent semi-circular groove, and this evagination sphere cooperates with packing ring indent semi-circular groove sphere.

Described packing ring profile is positive 12 square, and an end is along mesopore indent semi-circular groove and spigot nut pairing, the flange that the other end extends radially outward along mesopore.

After adopting such scheme, the utlity model has following advantage:

1, because the utility model adopts two nuts (hexagon nut, spigot nut) and screw rod to be used, convenient during installation.And spigot nut is made up of the spiro union portion and the guide portion of mutual pivot bush unit, cooperates with packing ring, and guidance quality is better.

2, owing to the utility model offers on the circumferential surface of screw rod around complete all longitudinal stripes, when this longitudinal stripe inserts the wheel hub fixed hole at screw rod, meeting and fixedly hole wall formation friction, and be not easy from the wheel hub fixed hole, to deviate from, installation is more prone to.

3, because the packing ring profile is positive 12 square, and an end is along mesopore indent semi-circular groove, and the flange that the other end extends radially outward along mesopore with cooperating of nut, plays firm wheel hub, increase the load of bolt.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Description of drawings

Figure 1A commonly uses the bolts and nuts exploded view;

Figure 1B is a front view of commonly using bolt;

Fig. 1 C be Figure 1B along A to view;

Fig. 1 D commonly uses the scheme of installation of bolt on wheel hub;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is a front view of the present utility model;

Fig. 4 is a sectional view of the present utility model;

Fig. 5 A is the stereogram of packing ring;

Fig. 5 B is the sectional view of packing ring.

Embodiment

As Fig. 2, Fig. 3, shown in Figure 4, the utility model is the fastening assembly parts of a kind of automobile-used wheel hub, and it is made up of screw rod 1, packing ring 2, hexagon nut 3, spigot nut 4.

The two ends of described screw rod 1 offer outside thread respectively, and described hexagon nut 3 and spigot nut 4 are screwed onto respectively on the outside thread at two ends of screw rod 1; Described packing ring 2 is socketed on the screw rod 1 and close spigot nut 4; On the circumferential surface that is connected epimere of screw rod 1 and hexagon nut 3, offer longitudinal stripe 11 around full week.

Shown in Fig. 5 A, Fig. 5 B, described packing ring 2 profiles are that positive 12 square 23, one ends are along mesopore indent semi-circular groove 21 and spigot nut 4 pairings, the flange 22 that the other end extends radially outward along mesopore.

As shown in Figure 4, described spigot nut 4 is made up of spiro union portion 41 and guide portion 42.The central authorities of described spiro union portion 41 have tapped hole and cooperate with the outside thread of screw rod 1, the one end is provided with annular flange flange 411, these annular flange flange 411 activities are nested with in the annular groove 421 of guide portion 42, contract in the aperture ora terminalis of annular groove 421, form confined planes, make guide portion 42 relatively spiro union portion 41 radially can from annular flange flange 411, not deviate from axial float.The end face of one end of described guide portion 42 is provided with the evagination sphere 422 that cooperates with packing ring 2 indent semi-circular groove 21, and this evagination sphere 422 cooperates with packing ring 2 indent semi-circular groove 21 spheres.When screw rod 1 and spigot nut 4 screwed, packing ring 2 can be with the effect of wheel hub correcting and protection steel ring with spigot nut 4.

Emphasis of the present utility model just is: adopt two nuts (hexagon nut, spigot nut) and screw rod to be used, and convenient during installation.

The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. fastening assembly parts of automobile-used wheel hub, it is characterized in that: it is made up of screw rod, packing ring, hexagon nut, spigot nut; The two ends of described screw rod offer outside thread respectively, and described hexagon nut and spigot nut are screwed onto respectively on the outside thread at screw rod two ends; Described gasket sleeve is connected on the screw rod and close spigot nut; On the circumferential surface that is connected epimere of screw rod and hexagon nut, offer longitudinal stripe around full week; Described spigot nut is made up of spiro union portion and guide portion; The central authorities of described spiro union portion have tapped hole and cooperate with the outside thread of screw rod, the one end is provided with annular flange flange, this annular flange flange activity is nested with in the annular groove of guide portion, contract in the aperture ora terminalis of annular groove, form confined planes, make guide portion relatively spiro union portion radially can from annular flange flange, not deviate from axial float; The end face of one end of described guide portion is provided with the evagination sphere that cooperates with packing ring indent semi-circular groove, and this evagination sphere cooperates with packing ring indent semi-circular groove sphere.

2. the fastening assembly parts of automobile-used wheel hub according to claim 1 is characterized in that: described packing ring profile is positive 12 square, and an end is along mesopore indent semi-circular groove and spigot nut pairing, the flange that the other end extends radially outward along mesopore.