CN201723542U

CN201723542U - Clutch limiting rivet

Info

Publication number: CN201723542U
Application number: CN2010202966112U
Authority: CN
Inventors: 郑士旺
Original assignee: SANMEN TONGSHUN RIVET CO Ltd
Current assignee: SANMEN TONGSHUN RIVET CO Ltd
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2011-01-26
Anticipated expiration: 2020-08-19

Abstract

The utility model belongs to the technical field of rivets, and relates to a clutch limiting rivet. An annular limiting boss is integrally formed in the middle of a solid cylinder, an annular cylinder is outwards integrally formed radially on the annular limiting boss in the middle of the solid cylinder, and two ends of the ring cylinder both radially outwards extend to form annular convex shoulders. The clutch limiting rivet has the advantages that the clutch limiting rivet is light in weight, saves raw materials, is uniform in plastic deformation of edges of riveting holes of connected parts, and is suitable to be a limiting rivet on a clutch.

Description

The spacing rivet of clutch

Technical field

The utility model belongs to the rivet technology field, refers in particular to the spacing rivet of a kind of clutch.

Background technique

At present, the structure of the general spacing rivet of clutch is: one-body molded at the middle part of solid cylinder have an annular stop boss, the two ends of the spacing rivet of clutch are penetrated respectively in the riveted holes of link of limited connection and carry out riveted, realize spacing connection, its deficiency is: the one, because the annular stop boss at its middle part is the circular cylinder of external diameter greater than solid cylinder, most of material at this circular cylinder middle part does not support, spacing and interconnect function, what really play position-limiting action is the annular convex shoulder of circular cylinder both ends of the surface, as long as the external diameter of this annular convex shoulder is enough big, can play position-limiting action, and the diameter external diameter with the annular convex shoulders circular cylinder both ends of the surface that at all there is no need to do at circular cylinder middle part is the same big, because like that promptly waste raw material, increased the weight of product again; The 2nd, the design of conventional rivets plastic deformation place is reasonable inadequately, makes that the plastic deformation of riveted joint back rivet is even inadequately, and the plastic deformation of some places is big, and the plastic deformation of some places is little, makes unbalance stress.

Summary of the invention

The purpose of this utility model provides the spacing rivet of a kind of clutch in light weight, that save material.

The purpose of this utility model is achieved in that

The spacing rivet of clutch, one-body molded at the middle part of solid cylinder have an annular stop boss, described annular stop boss is circular cylinder to be arranged in that the middle part of solid cylinder radially outward is one-body molded, the two end part of the circular cylinder annular convex shoulder that all extends radially outwardly out.

The two end part of above-mentioned solid cylinder are provided with necking down.

The both ends of the surface of above-mentioned solid cylinder are provided with the bowl type pit that concaves.

The spacing rivet of above-mentioned clutch is made with aluminium or aluminum alloy material.

The outstanding compared to existing technology advantage of the utility model is:

1, in light weight, save material: because circular cylinder of the present utility model and annular convex shoulder have formed original cylindrical position-limiting action jointly, the annular convex shoulder wherein and the boss of circular cylinder can play spacing effect fully, the external diameter of the circular cylinder between two annular convex shoulders is less than the external diameter of annular convex shoulder, thereby making compared to existing technology in light weight of weight of the present utility model, the weight that alleviates is the raw-material weight of saving;

2, the utility model is provided with a bowl type pit in the both ends of the surface of solid cylinder, and when making riveted joint, the outer end of solid cylinder is convenient to the plastic deformation and realize riveted joint equably of the edge of the riveted holes of connected piece.

3, the suitable spacing rivet of doing on the clutch of the utility model uses.

Description of drawings

Fig. 1 is a structure sectional view of the present utility model;

Fig. 2 is a user mode sectional view of the present utility model.

Embodiment

With specific embodiment the utility model is further described below, referring to Fig. 1:

The spacing rivet of clutch, one-body molded at the middle part of solid cylinder 10 have an annular stop boss, described annular stop boss is circular cylinder 20 to be arranged in that the middle part of solid cylinder 10 radially outward is one-body molded, the two end part of circular cylinder 20 annular convex shoulder 30 that all extends radially outwardly out, the outer diameter D 1 of the outer diameter D 2＞solid cylinder 10 of circular cylinder 20.

The two end part of above-mentioned solid cylinder 10 are provided with necking down 101.

The both ends of the surface of above-mentioned solid cylinder 10 are provided with the bowl type pit 40 that concaves.

Application of the present utility model, referring to Fig. 2:

The left and right two ends of the spacing rivet 1 of clutch are penetrated respectively in the riveted holes of link 2,3 of limited connection, carrying out riveted with riveting gun then connects, the solid cylinder 10 stressed generation plastic deformations of circular cylinder 20 both sides, seek connections with in the edge of the riveted holes of connected piece 2,3 and riveted connection, because the both ends of the surface at solid cylinder 10 are provided with a bowl type pit 40, when making riveted joint, the outer end of solid cylinder 10 is convenient to the plastic deformation and realize riveted joint equably of the edge of the riveted holes of connected piece.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit protection domain of the present utility model according to this; so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1. the spacing rivet of clutch, one-body molded at the middle part of solid cylinder have an annular stop boss, it is characterized in that: described annular stop boss is circular cylinder to be arranged in that the middle part of solid cylinder radially outward is one-body molded, the two end part of the circular cylinder annular convex shoulder that all extends radially outwardly out.

2. the spacing rivet of clutch according to claim 1, it is characterized in that: the two end part of described solid cylinder are provided with necking down.

3. the spacing rivet of clutch according to claim 1 and 2 is characterized in that: the both ends of the surface of described solid cylinder are provided with the bowl type pit that concaves.

4. the spacing rivet of clutch according to claim 1 is characterized in that: the spacing rivet of described clutch is made with aluminium or aluminum alloy material.