CN201599294U - Screw bolt component for positioning wheel hub for vehicle - Google Patents

Abstract

The utility model discloses a screw bolt component for positioning a wheel hub for a vehicle. The screw bolt comprises a screw rod and a screw bolt head, wherein the circumferential surface of a fixed connection section between the screw rod and the screw bolt head is provided with a surrounding lengthways stripe; when the screw bolt is inserted into a wheel hub fixing hole, the screw bolt can from friction with the wall of the fixing hole and is difficult to separate from the wheel hub fixing hole, so that the installation is easier; a gasket is shaped like a regular dodecagon, one end of the gasket is matched with a screw nut along a concave semicircular groove of a middle hole, and the other end of the gasket is extended with a flange radially and outwards along the middle hole; and the screw nut consists of a screwing part and a guiding part, one end of the guiding part is movably sheathed on the screwing part, the end face of the other end of the guiding part is a plane, and the gasket and the screw nut can correct the wheel hub and protect a steel ring when the screw bolt is screwed with the screw nut.

Description

Automobile-used wheel hub jack bolt assembly

Technical field

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

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 (dotted portion among the figure) 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 automobile-used wheel hub jack bolt assembly of assembling of tightness.

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

The utility model is a kind of automobile-used wheel hub jack bolt assembly, and it comprises bolt, packing ring and nut, and gasket sleeve is connected on the bolt, and bolt is screwed onto in the screw of nut central authorities; Described bolt comprises screw rod and bolt head, and an end of screw rod is fixed in the middle part of bolt head, and the first side of bolt is the stabilising surface that cooperates with wheel hub.Described 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, and the one end is provided with annular flange flange, and this annular flange flange activity is nested with in the annular groove of guide portion; The end face of described guide portion outer end is the plane; On guide portion, be provided with pilot hole and spacing hole that two ends connect mutually; Annular flange flange on the described spiro union portion is rotating to be nested with in spacing hole, contracts in the aperture ora terminalis of spacing hole, forms confined planes, make guide portion relatively spiro union portion radially can from spacing hole, not deviate from axial float.

The utility model offers the longitudinal stripe around full week on affixed section circumferential surface of screw rod and bolt head.

The top of described bolt head is trapezoid shaped, and the stabilising surface that the bottom cooperates with wheel hub is an arc surface.

Described packing ring profile is a polygonal, and a port in hole is outwards expansion radially, forms a hemisphere annular groove, and the other end of mesopore axially extends outward an annular flange flange along the mesopore hole wall.

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

1, because the utility model bolt offers the longitudinal stripe around full week on affixed section circumferential surface of screw rod and bolt head, when this longitudinal stripe inserts the wheel hub fixed hole at bolt, 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.

2, 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.

3, because nut of the present utility model is made up of spiro union portion and guide portion, and an end of guide portion is actively socketed on the spiro union portion, and the end face of the other end is the plane, when bolts and nuts screwed, packing ring and nut can be with the effects of wheel hub correcting and protection steel ring.

4, because the stabilising surface that the utility model bolt head bottom cooperates with wheel hub is an arc surface, increased the length of stabilising surface and wheel hub cambered surface, be that area of contact increases, be not easy after the bolton to get loose, the cambered surface of the stabilising surface of arc and wheel hub is more identical simultaneously, can not damage the wheel hub fixed hole because of the rotation 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 axonometric drawing of the utility model packing ring;

Fig. 5 B is the sectional view of the utility model packing ring;

Fig. 6 is the sectional view of the utility model nut;

Fig. 7 is the side view of the utility model bolt.

Embodiment

Embodiment of the present utility model is described with reference to the accompanying drawings.

As Fig. 2, Fig. 3, shown in Figure 4, the utility model comprises bolt 1, packing ring 2 and nut 3 as a complete fastener, and during installation, packing ring 2 packs into bolt 1, and bolt 1 is screwed onto in the screw 30 of nut 3 central authorities.

As shown in Figure 2, the utility model is automobile-used anti-spinning roller hub bolt 1, and it comprises screw rod 11 and bolt head 12, and an end of screw rod 11 is fixed in the middle part of bolt head 12, the top 121 of bolt head 12 is trapezoid shaped, and the stabilising surface 122 that the bottom cooperates with wheel hub is arc surface (as shown in Figure 7).Offer the longitudinal stripe 111 around full week on affixed section circumferential surface of screw rod 11 and bolt head 12, these longitudinal stripe 111 meetings and wheel hub fixed hole hole wall form and rub, and make that bolt 1 is not easy to deviate from from the wheel hub fixed hole.

Shown in Fig. 5 A, Fig. 5 B; described packing ring 2 outer walls are positive 12 square 23; be easy to pull down; a port of its mesopore is outwards expansion radially; form a hemisphere annular groove 22; the other end of mesopore axially extends outward an annular flange flange 21 along the mesopore hole wall, and this annular flange flange 21 has the effect of protection steel ring.

As shown in Figure 6, described nut 3 is made up of spiro union portion 32 and guide portion 31.The central authorities of described spiro union portion 32 have tapped hole 321 and cooperate with the outside thread of screw rod 11, and the one end is provided with annular flange flange 322, and these annular flange flange 322 activities are nested with in the annular groove 311 of guide portion 31 inboards; The end face of described guide portion 31 outer ends is plane 311.Be provided with pilot hole 312 and spacing hole 313 that two ends connect mutually on guide portion 31, spacing hole 313 forms shoulder hole with pilot hole 312.Annular flange flange 322 rotating being nested with in spacing hole 313 on the described spiro union portion 32 are contracted in the aperture ora terminalis of spacing hole 313, form confined planes, make guide portion 31 relatively spiro union portion 32 radially and axial float and can from spacing hole 313, not deviate from.The socket of spiro union portion 32 and guide portion 31 can be nested with in annular groove 311 flange 322 activities on the spiro union portion 32 by the cold hobbing mode spacing hole 313 that closes up.

Emphasis of the present utility model just is: offer the longitudinal stripe around full week on affixed section the circumferential surface of the screw rod of bolt and bolt head; Nut is formed by spiro union portion and guide portion two-part pivot bush unit; The structural design of packing ring cooperates with nut, plays firm steel ring, increases the effects such as load of screw rod.

Claims (4)

1. automobile-used wheel hub jack bolt assembly, it comprises bolt, packing ring and nut, and gasket sleeve is connected on the bolt, and bolt is screwed onto in the screw of nut central authorities; Described bolt comprises screw rod and bolt head, and an end of screw rod is fixed in the middle part of bolt head, and the first side of bolt is the stabilising surface that cooperates with wheel hub; It is characterized in that: described 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, and the one end is provided with annular flange flange, and this annular flange flange activity is nested with in the annular groove of guide portion inboard; The end face of described guide portion outer end is the plane; On guide portion, be provided with pilot hole and spacing hole that two ends connect mutually; Annular flange flange on the described spiro union portion is rotating to be nested with in spacing hole, contracts in the aperture ora terminalis of spacing hole, forms confined planes, make guide portion relatively spiro union portion radially can from spacing hole, not deviate from axial float.

2. automobile-used wheel hub jack bolt assembly according to claim 1 is characterized in that: offer the longitudinal stripe around full week on affixed section circumferential surface of screw rod and bolt head.

3. automobile-used wheel hub jack bolt assembly according to claim 1, it is characterized in that: the top of described bolt head is trapezoid shaped, and the stabilising surface that the bottom cooperates with wheel hub is an arc surface.

4. automobile-used wheel hub jack bolt assembly according to claim 1, it is characterized in that: described packing ring profile is a polygonal, a port in hole is outwards expansion radially, forms a hemisphere annular groove, and the other end of mesopore axially extends outward an annular flange flange along the mesopore hole wall.

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