CN2136902Y - Chain axle of chain - Google Patents

Abstract

The utility model relates to a chain axle arranged on a chain. The utility model is mainly characterized in that a circle of closed groove is respectively formed by stamping on the two ends of a chain axle. A coaxial salient pole is protruded in the center of the groove. A rim of thin labial margin is formed on the outside of a rod body. With the fabrication of the groove, the labial margin of the chain axle tends to be easily everted to ensure good imbedding force between the chain axle and outer chain links, and the design of the salient pole that the center of the groove is not stamped can reduce the abrasion of the collision part and avoid the chain axle from deforming because of pressure, so that the manufacture and moulding of the chain axle is convenient.

Description

Chain axle of chain

The utility model relates to a kind of chain rivet that is assembled on the chain, particularly relates to a kind ofly can not only guaranteeing splendid inlay resultant force between itself and outer chain sheet, can increase more that it is made, the easness of moulding, to prevent the chain rivet of its bending when the moulding, distortion.

Common chain roughly as shown in Figure 1, the bead 112 that has outside punching press to form at the peripheral region of the through hole 111 of disymmetrical inner chain sheet 11, outside two beads 112 that are provided with relatively, be arranged with chain and roll 12, above-mentioned inner chain sheet 11 links to each other with outer chain sheet 13 respectively, be equipped with chain rivet 2 in the through hole 111,131 on the inside and outside chain sheet 11,13 to connect aforementioned components, the utility model is to propose a kind of structure improved chain rivet 2.

As shown in Figure 2, be a kind of stereogram of chain rivet in the past, wherein chain rivet 2 is columned solid bodies of rod, has corresponding tabular surface on two ends 21 of the body of rod respectively; When above-mentioned chain rivet 2 is assembled on the chain 1, its two end 21 protrudes in respectively outside the outer side surface of outer chain sheet 13, in order to strengthen chimeric between the two, on two ends 21 of chain rivet 2, rivet processing, make of the periphery expansion of the edge of end 21 to the through hole 131 of outer chain sheet 13; Though above-mentioned processing mode helps the chimeric of 13 of chain rivet 2 and outer chain sheets, but because of traditional chain rivet 2 is the solid body of rod, therefore, the body of rod can be limited to the area of through hole 131 peripheries expansion, chain 1 inlay resultant force after causing assembling is not good, and becomes the defective in chain rivet 2 designs in the past.

In order to overcome above-mentioned defective, just the someone proposes a kind of chain rivet as shown in Figure 3, above-mentioned chain rivet 3 also is the columned solid body of rod, its main feature is: have an axial groove 32 respectively on two ends 31 of chain rivet 3, through groove 32, can make groove 32 to the antelabium 33 between the body of rod outside with comparalive ease large size outwards expand, and strengthen inlay resultant force between chain rivet 3 and chain outer chain sheet.

Though the structure of aforementioned chain rivet 3 has improved the not good defective of assembling chain inlay resultant force effectively, with regard to its manufacturing, then still has to wait improved place; Please consult Fig. 3 again, chain rivet 3 was that as shown in Figure 2 cylindric solid hopkinson bar is inserted on the positioning module 41 during fabrication in the past, again to hit son 42 in the body of rod two ends, 31 punching presses simultaneously, make and form a groove 32 on the chain rivet for trapezoidal bottom flat by axial sectional view sight, that is to say its molding mode be with the former one's own department or unit of the body of rod at the constouctional material at groove 32 positions to other or inwardly push, so the purpose of chain rivet 3 formation grooves 32 only was to allow the antelabium 33 of groove 32 peripheries have thin thickness in the past, and can be easily and outwards expansion in large area, to increase the inlay resultant force between chain rivet 3 and outer chain sheet; But as seen from the figure, the volume of the formed in order to achieve the above object groove 32 of chain rivet 3 in the past is bigger, and groove 32 bottoms are plane again, therefore, an amount of effort is bigger when punching press is carried out in the end 31 of hitting 42 pairs of chain rivets 3 of son, and the application of force is more greatly for chain rivet 3, than the phenomenon that is easier to cause body of rod bending, distortion; Again with regard to hitting son 42 use, also than being easier to cause the wearing and tearing and the fracture of hitting son 42, cause making, moulding be difficult for and make underproof chance increase; Therefore, chain rivet 3 formed a groove 32 in the 31 central punching presses of two ends in the past, and make its external end edge form the design of an antelabium 33, though can improve the not good defective of conventional chains inlay resultant force, but it has manufacturing, moulding is difficult for and hit the defective that son weares and teares easily, fractures, and has also reduced the effect of using in fact virtually.

So, main purpose of the present utility model be to provide a kind of guarantee and outer chain sheet between have preferable inlay resultant force in, further increase its ease of manufacture and prevent the product distortion, hit the chain rivet of son wearing and tearing.

The utility model proposes a kind of chain rivet of chain, it is a columned solid body of rod, and this body of rod has the end of two correspondences; It is characterized in that: form the chase of a circle sealing on this two end respectively, the antelabium that is formed with thinner thickness and is easy to turn up on the outside body of rod of chase, the inboard body of rod of chase then forms a protruded stigma;

The axial section of described chase is in the shape of the letter V;

Chase is circular for sealing;

Also can be that chase is four square ring shapes of sealing;

Also can be that chase is the hexagonal ring-type of sealing;

The top of protruded stigma is a little less than the top of antelabium.

Major character of the present utility model is: two ends of chain rivet form the chase of a circle sealing respectively, form the antelabium of thinner thickness between the chase and the body of rod outside, then are equipped with protruded stigma in chase central authorities; The formation of the above-mentioned chase of mat, the easness that can keep antelabium to turn up more can make the body of rod reduced by the punching press volume, so can increase the easness of its manufacturing, moulding again when guaranteeing chain rivet and the preferable inlay resultant force of outer chain sheet.

Relevant the utility model is for reaching above-mentioned purpose, and technological means that is adopted and effect thereof are enumerated some preferred embodiments now, and conjunction with figs. details are as follows:

The simple declaration of accompanying drawing:

Fig. 1 is a kind of combination cross-sectional schematic of chain in the past;

Fig. 2 is a kind of schematic perspective view of chain rivet in the past;

Fig. 3 is the another kind of shaping schematic view of chain rivet in the past;

Fig. 4 is that the part of the chain rivet in the utility model first preferred embodiment is analysed and observe schematic perspective view;

Fig. 5 is that the chain rivet in the utility model first preferred embodiment is assembled in the schematic representation on the chain;

Fig. 6 is that the part of the chain rivet in the utility model second preferred embodiment is analysed and observe schematic perspective view;

Fig. 7 is that the part of the chain rivet in the utility model the 3rd preferred embodiment is analysed and observe schematic perspective view;

Fig. 8 is the axial cross-sectional schematic of the chain rivet in the utility model the 4th preferred embodiment.

See also Fig. 4, the chain rivet 5 that the utility model first embodiment proposes also is a solid round bar shape body, be primarily characterized in that: two ends 51 of chain rivet 5 are formed with the chase 52 of a circle indent, sealing respectively, the inside and outside sidewall of above-mentioned chase 52 is respectively the inclined-plane 521,522 of concentric inclination, the intersection, bottom on this two inclined-plane is formed with coaxial and a closing line 523 in chase 52 central authorities, if by axially analysing and observe direction, the section of chase 52 is V-shape; Also have a columned protruded stigma 53 in chase 52, its outer circumferential face is to forming the contour antelabium 54 of a circle and protruded stigma 53 between the body of rod outside.

As shown in Figure 5, when the chain rivet of present embodiment proposition is assembled on the chain 6, two ends 51 of chain rivet 5 protrude in outside the outer side surface of outer chain sheet 61 of chain 6 equally, this moment, the punching press end 51, the antelabium 54 that just can make thinner thickness is easily with than the periphery expansion of large size to the through hole 611 of outer chain sheet 61, and increases the inlay resultant force of 5 of the outer chain sheet 61 of chain 6 and chain rivets.

By above explanation as can be known, present embodiment mainly is the chase 52 that forms a circle indent, sealing on two ends 51 of chain rivet 5 respectively, and chase 52 sections are in the shape of the letter V, the improvement of said structure not only can guarantee antelabium 54 abducent easnesses, and the angle from making, having more is shaped is easy to effect; The main cause that produces aforementioned effect has two, first the utility model has reduced effectively that chain rivet 5 is actual to be subjected to volume that punching press squeezes (promptly under the situation that forms same depth, chain rivet 3 was stamped in the past, the volume that squeezes is compared with the utility model and is had more protruded stigma 53 partly), second it be because above-mentioned chase 52 is in the shape of the letter V, must have blade 550 so hit son 55, just help hitting the punching press of son, above-mentioned favorable factor, can alleviate the impact force of hitting son on the one hand, the impact force that also can avoid on the other hand being applied on the end 51 of chain rivet 5 is excessive, cause chain rivet 5 bending that is stamped, the situation of distortion, the 3rd also can reduce the wearing and tearing of hitting son, the fracture probability, obviously, the improvement of in the utility model the foregoing description chain rivet 5 being done, really can under the situation that guarantees chain rivet 5 and 61 preferable inlay resultant forces of outer chain sheet, further avoid the manufacturing of chain rivet in the past as shown in Figure 3, the defective that moulding is difficult for.

The structure of the chain rivet that second embodiment of the present utility model proposes as shown in Figure 6, on two ends 71 of chain rivet 7 respectively punching press be formed with the sealing chase 72 of four horn shapes, above-mentioned chase 72 inner formed closing lines 721 are corresponding quadrangle equally, and the outstanding axial protruded stigma 73 of chase central authorities also is the quadrangular pyramid shape; By the change of above-mentioned chase 72 shapes, can make equally that chain rivet 7 two ends 71 are subjected to punching press, the volume pushed reduces, so still have the moulding that is beneficial to chain rivet 7 and prevent the advantage of hitting son distortion, fracture of punching press.

The chain rivet that the 3rd embodiment of the present utility model proposes as shown in Figure 7, be formed with the sealing chase 82 of hexagonal shape on two ends 81 of chain rivet 8 respectively, in the protruded stigma 83 of the same outstanding respective shapes of chase 82 central authorities, above-mentioned protruded stigma 83 also forms a closing line 84 with chase 82; Through the alteration of form of above-mentioned chase 82, can under the situation that the antelabium 85 that makes things convenient for chain rivet 8 turns up, reach manufacturing, the easy purpose of moulding equally.

Two ends are outwards outstanding when being assembled on the chain when chain rivet, the chain axle construction that the 4th embodiment of the present utility model proposes then as shown in Figure 8, the antelabium 92 that the protruded stigma 91 of chain rivet 9 central authorities is established a little less than periphery ring after moulding, so, when antelabium 92 is subjected to punching press and after the expansion of the outer chain sheet through hole periphery of chain, protruded stigma 91 can be contour with the antelabium 92 after the punching press, thereby avoided the evagination of protruded stigma 91.

By aforesaid embodiment as can be known, no matter formed chase is the geometric figure of which kind of shape on the chain rivet that the utility model proposes, as long as its axial section is in the shape of the letter V, and the outer antelabium of chase is easy to turn up, and just can reach the purpose of this utility model; Therefore, the utility model forms the structure of a sealing chase respectively on chain rivet two ends, not only can guarantee the easness that antelabium turns up effectively, to guarantee inlay resultant force preferable between chain rivet and outer chain sheet, more can avoid the body of rod to be subjected to the punching press volume too much to cause bending, the distortion of the body of rod, and hit phenomenons such as son is impaired, fracture, chain rivet is more prone in manufacturing, moulding.

In sum, seem slight, for the chain rivet of chain, to be a kind of innovation, because it has the easness that can increase manufacturing and prevent the body of rod and hit sub impaired advantage, so be practical and progressive design really though said structure of the present utility model improves.

Claims (6)

1, a kind of chain rivet of chain, it is a columned solid body of rod, this body of rod has the end of two correspondences; It is characterized in that: form the chase of a circle sealing on this two end respectively, the antelabium that is formed with thinner thickness and is easy to turn up on the outside body of rod of chase, the inboard body of rod of chase then forms a protruded stigma.

2, according to the chain rivet of the described chain of claim 1; It is characterized in that the axial section of chase is in the shape of the letter V.

3, according to the chain rivet of the described chain of claim 1; It is characterized in that chase is circular for sealing.

4, according to the chain rivet of the described chain of claim 1; It is characterized in that chase is four square ring shapes of sealing.

5, according to the chain rivet of the described chain of claim 1; It is characterized in that chase is the hexagonal ring-type of sealing.

6, according to the chain rivet of the described chain of claim 1; It is characterized in that the top of protruded stigma is a little less than the top of antelabium.

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