CN215058797U

CN215058797U - High strength hexagon bolt for automobile wheel hub

Info

Publication number: CN215058797U
Application number: CN202121247595.2U
Authority: CN
Inventors: 赵正光; 许建平; 张俊
Original assignee: Zhenjiang Bochi Auto Parts Co ltd
Current assignee: Zhenjiang Bochi Auto Parts Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-07
Anticipated expiration: 2031-06-04

Abstract

The utility model provides a high strength hexagon bolt for automobile wheel hub, include from left side right side a body coupling's lead screw, intermediate lever and nut, the cover is equipped with the antiskid cover on the intermediate lever, and the intermediate lever surface is carved with anti-skidding line, and antiskid cover equidistant running through has seted up a plurality of shrink groove on surface, is provided with the anticreep sand grip between the adjacent shrink groove, and the one end an organic whole that the antiskid cover deviates from the lead screw is provided with the horn mouth, and one side that the nut is close to the intermediate lever is provided with the boss, has solved the relatively poor problem of automobile wheel hub bolt antiskid effect in the past, the utility model discloses it is rational in infrastructure, adopt the antiskid cover to take place elastic deformation extrusion intermediate lever and produce frictional force, elastic restoring force is good, and locking is lasting effective.

Description

High strength hexagon bolt for automobile wheel hub

Technical Field

The utility model relates to a high strength hexagon bolt for automobile wheel hub relates to auto-parts processing technology field.

Background

The hub bolts are high strength bolts for attaching the vehicle to the wheel. The connecting position is a hub unit bearing of a wheel, 10.9-grade hub bolts are used on a common mini-type vehicle, 12.9-grade hub bolts used on a large and medium-sized vehicle are generally in the structure that a spline gear, a thread gear and a cap head T-shaped head hub bolt are more than 8.8-grade levels, the large torsion force between an automobile hub and an axle is born, the double-end hub bolts are connected by the large torsion force, and the connection of the lighter torsion force between an automobile hub shell and the tire is born.

Among the prior art, the high strength and the locking structure of wheel hub bolt are the object of research and concern always, and current pound wheel hub bolt and adopt near the nut to carve and establish anti-skidding line and carry out anti-skidding improvement, but even consider adopting anti-skidding line, but one characteristics can not be kept away to the forever of its steel structure: after the wheel is extruded and deformed, the anti-skid lines have poor capability of recovering the original state, and the anti-skid lines still have the possibility of wear failure after the wheel is frequently vibrated; therefore, a high-strength hexagon bolt for automobile hubs is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a high strength hexagon bolt for automobile wheel hub to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, adopt the antiskid cover to take place elastic deformation extrusion intermediate lever and produce frictional force, elasticity restoring force is good, and locking is lasting effective.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a high-strength hexagon bolt for an automobile hub comprises a screw rod, a middle rod and a nut which are integrally connected from left to right, wherein an anti-skid sleeve is sleeved on the middle rod;

the surface of the middle rod is carved with anti-skid grains;

a plurality of shrinkage grooves are formed in the surface of the anti-skid sleeve in a penetrating mode at equal intervals, anti-skid convex strips are arranged between every two adjacent shrinkage grooves, and a horn mouth is integrally formed in one end, away from the screw rod, of the anti-skid sleeve;

and a boss is arranged on one side of the nut close to the middle rod.

Further, the outer diameter of the anti-skidding sleeve is smaller than the diameter of the screw rod, and the maximum diameter of the bell mouth is larger than the diameter of the screw rod.

Further, the boss is of a circular truncated cone-shaped structure.

Furthermore, the anti-skid lines are of convex or concave strip-shaped structures.

Furthermore, one end of the screw rod, which is far away from the middle rod, is provided with a guide head.

Furthermore, an inner hexagonal groove is formed in one end, away from the middle rod, of the nut.

The utility model has the advantages that:

1. after the screw rod of the utility model goes deep into the inner threaded hole of the wheel hub, the anti-drop convex strips on the anti-drop sleeves are firstly extruded and deformed by the inner wall of the threaded hole, and the anti-drop effect is enhanced because the contraction grooves have certain elastic recovery function, so that the anti-drop sleeves are always clamped with the inner wall of the threaded hole of the wheel hub;

2. then, the anti-drop convex strips are stressed and extruded, and then the shrinkage grooves are continuously extruded to deform and shrink, the diameters of the anti-slip sleeves near the shrinkage grooves are reduced, the anti-slip sleeves further hold the middle rod tightly, and the rotation resistance of the middle rod is increased; in addition, at the moment, the anti-falling convex strip is contacted with the inner wall of the threaded hole of the hub, so that the intermediate rod and the threaded hole are relatively tightly attached and fixed; in addition, the lug boss is clung to the bell mouth, so that the anti-skidding effect is achieved, and the anti-skidding sleeve effectively prevents the screw rod from slipping through triple anti-skidding.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a high-strength hexagon bolt for automobile wheel hubs of the present invention;

fig. 2 is a cross-sectional view of a hex bolt for a high-strength automobile hub according to the present invention;

in the figure: the guide device comprises a screw rod 1, a guide head 11, an intermediate rod 2, anti-slip lines 21, an anti-slip sleeve 3, an anti-slip convex strip 31, a contraction groove 32, a bell mouth 33, a screw cap 4, a boss 41 and a hexagon groove 42.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-2, the present invention provides a technical solution: a high-strength hexagon bolt for an automobile hub comprises a screw rod 1, a middle rod 2 and a nut 4 which are integrally connected from left to right, wherein an anti-skid sleeve 3 is sleeved on the middle rod 2;

the surface of the intermediate rod 2 of the utility model is carved with anti-skid lines 21; a plurality of shrinkage grooves 32 are formed in the surface of the anti-skid sleeve 3 in a penetrating mode at equal intervals, anti-skid convex strips 31 are arranged between every two adjacent shrinkage grooves 32, and a bell mouth 33 is integrally formed in one end, away from the screw rod 1, of the anti-skid sleeve 3;

when the screw rod 1 goes deep into the internal threaded hole of the hub, the anti-falling convex strips 31 on the anti-skidding sleeves 3 are firstly extruded and deformed by the inner wall of the threaded hole, and then the contraction grooves 32 are continuously extruded to be deformed and contracted, the diameters of the parts near the contraction grooves 32 are reduced, the anti-skidding sleeves 3 further hold the intermediate rod 2 tightly, and the rotation resistance of the intermediate rod 2 is increased; in addition, at the moment, the anti-falling convex strip 31 is contacted with the inner wall of the hub threaded hole, so that the intermediate rod 2 is relatively tightly attached and fixed with the hub threaded hole; in addition, the bell mouth 33 is tightly attached to the boss 41, so that an anti-skidding effect is achieved, and the screw rod 1 is effectively prevented from slipping due to the triple anti-skidding;

finally, the shrinkage groove 32 has a certain elastic recovery function, so that the anti-slip sleeve 3 is always tightly clamped with the inner wall of the threaded hole of the hub, and the anti-slip and anti-slip effects are enhanced.

As an embodiment of the present invention: inserting a hexagonal screwdriver into the inner hexagonal groove 42, and screwing the whole bolt into the threaded hole of the hub; after the screw rod 1 goes deep into the internal threaded hole of the hub, the anti-falling convex strips 31 on the anti-sliding sleeve 3 are firstly extruded and deformed by the inner wall of the threaded hole, and the anti-falling and anti-sliding effects are enhanced because the contraction grooves 32 have a certain elastic recovery function, so that the anti-sliding sleeve 3 is always clamped with the inner wall of the threaded hole of the hub; the anti-slip convex strips 31 continue to extrude the contraction grooves 32 to deform and contract after being stressed and extruded, the diameters of the anti-slip sleeves 3 near the contraction grooves 32 are reduced, the anti-slip sleeves 3 tightly hold the middle rod 2, and the rotation resistance of the middle rod 2 is increased; in addition, at the moment, the anti-falling convex strip 31 is contacted with the inner wall of the threaded hole of the hub, so that the intermediate rod 2 is relatively tightly attached and fixed with the threaded hole; in addition, the bell mouth 33 is tightly attached to the boss 41, so that an anti-skid effect is achieved, and the anti-skid sleeve 3 effectively prevents the screw rod 1 from slipping through triple anti-skidding.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a high strength hexagon bolt for automobile wheel hub which characterized in that: the anti-skidding type screw rod mechanism comprises a screw rod (1), an intermediate rod (2) and a screw cap (4) which are integrally connected from left to right, wherein an anti-skidding sleeve (3) is sleeved on the intermediate rod (2);

the surface of the middle rod (2) is carved with anti-skid grains (21);

a plurality of shrinkage grooves (32) are formed in the surface of the anti-skid sleeve (3) in a penetrating mode at equal intervals, anti-drop convex strips (31) are arranged between every two adjacent shrinkage grooves (32), and a horn mouth (33) is integrally formed in one end, away from the screw rod (1), of the anti-skid sleeve (3);

and a boss (41) is arranged on one side of the nut (4) close to the middle rod (2).

2. The hexagonal bolt for the high-strength automobile hub according to claim 1, wherein: the outer diameter of the anti-skidding sleeve (3) is smaller than the diameter of the screw rod (1), and the maximum diameter of the bell mouth (33) is larger than the diameter of the screw rod (1).

3. The hexagonal bolt for the high-strength automobile hub according to claim 1, wherein: the boss (41) is in a circular truncated cone-shaped structure.

4. The hexagonal bolt for the high-strength automobile hub according to claim 1, wherein: the anti-skid grains (21) are of convex or concave strip-shaped structures.

5. The hexagonal bolt for the high-strength automobile hub according to claim 1, wherein: and a guide head (11) is arranged at one end of the screw rod (1) deviating from the middle rod (2).

6. The hexagonal bolt for the high-strength automobile hub according to claim 1, wherein: an inner hexagonal groove (42) is formed in one end, deviating from the middle rod (2), of the nut (4).