Apparatus for producing endless metallic belt

[Detailed Description of the Invention]

[Field of the Invention] The present invention relates to the manufacture device of endless metal bell 1- used for power transfer. (Generally the endless metal belt used for a technological background, its problem, for example, the gearless drive mechanism for cars,], or an object for general power transfer of an invention, etc. transmits power via pulleys 1 and 1, as roughly shown in Drawing 1.) For this reason, at the time of use, inside compressive stress comes to act again, moreover, Tension bends in the position of pulleys 1 and 1 at endless metal belt 2 repeatedly outside, and it is used under the severe stress conditions that stress acts. For this reason, the trial which pulls to the inner circumference side of a metal belt beforehand, and gives stress was also conducted so that it might be seen by JP,53-42172,A, for example, but it was insufficient for raising a fatigue life. Object] of [invention There is a place which the present invention was made based on the above-mentioned situation, and is made into the object in providing the manufacture device of endless metal bell i- which has a big effect in raising the fatigue life of such metal bell 1-, etc. (The outline of an invention] At least 1 pair which adds Tension rolling an endless metal belt almost and making it run the metal belt concerned pulls, and the place made into the gist of the 1st present invention is a roller, It is in the manufacture device of the endless metal belt possessing the peening device which gives shot peening to the peripheral face of the above-mentioned metal belt, making it run the above-mentioned metal belt. By having adopted the above-mentioned composition, where stress is added to a metal belt, it could produce and cheat out of the compressive residual stress by shot peening to the belt peripheral face, and it became possible to raise endurance sharply in this kind on which it bends repeatedly and stress acts of endless metal belt. At least 1 pair which adds Tension rolling an endless metal belt almost and making it run the metal belt concerned pulls, and the place furthermore made into the gist of the 2nd present invention is a roller, it is provided among these Tension rollers, and in contact with the inner skin of the above-mentioned metal belt, from the inner circumference side, the metal bell 1 What concerned is turned outside, and is pressed -- bending -- an addition roller, It is in the manufacture device of the endless metal belt possessing the peening device which gives shot peening to the peripheral face of the above-mentioned metal belt, making it run the above-mentioned metal belt. According to the above-mentioned composition, it adds to the ability of the peripheral face to be made to produce the compressive residual stress by shot peening, where a tension is given to an endless metal belt, It is very effective, when it bends, and produces in a metal belt effectively, it can cheat out of remaining stress with an addition roller and the fatigue life of an endless metal belt is raised by these synergy. [Example] With reference to Drawing 2 per 1st example of the present invention, it explains below. In the figure, 10.11 in a figure pulls and shows the roller. At least 1 side of these Tension rollers 10.11 rotates by Drive 81 A nature which is not illustrated, rolls endless metal belt 2, and carries out the endless run of the belt 2 of a credit lever. The above-mentioned Tension roller 10.11 can change a mutual distance, and it is constituted so that Tension can be given to the above-mentioned metal belt 2. This metal belt 2 is fabricated beltlike beforehand endless [ thickness ] from the stainless steel about [ i mm to ] 0 and 0.3 nun, etc., for example. However, the quality of the material or thickness are not asked. And peening device 12 which gives shot peening to the above-mentioned metal belt 2 is formed. This peening device 12 clamps 5-like objects etc. on the field by the side of the perimeter of metal belt 2, for example using centrifugal force or compressed air in granular object - in which others are [ a small steel ball or a cut wire, being sand, glass being a grain, and ] proper, and makes that surface produce compressive residual stress. the above-mentioned peening device 12 strikes the above-mentioned shot, making it run metal belt 2, is made to perform shot peening to uniform and continuous =5-, and appears in it. It hits inside metal belt 2 and they are board 11 F!l To be. According to this example of the above-mentioned composition, where it pulled to metal belt 2 and stress is added with rollers 10 and 11, shot peening can be performed to the peripheral face of metal belt 2. A deer is carried out and the remaining stress to which compressive remaining stress pulls the perimeter side surface of metal belt 2 inside belt 2 on the outside of belt 2 again by the amount of spreading becoming large rather than the inner circumference side surface is given by operation of the above-mentioned shot peening. Endless metal belt 2 comes to show the outstanding endurance by this. Drawing 3 shows the 2nd example of the present invention. In this example, although it is the same as that of the 1st example of the above about the point which pulled and is provided with rollers 10 and 11 and peening device 12, it is different from the 1st example with the point which pulled, bent between rollers 10 and 11, and is provided with addition roller 15. The account of the upper bends, addition roller 15 touches the inner skin of metal belt 2, and it is this belt 261. Among those, it presses towards the outside from the circumference side. And the above-mentioned peening device 12 is formed in the position in which the account of the upper bends and which counters addition roller 15, is bent and performs shot peening to the peripheral face of metal belt 2 in the position of addition roller 15. According to M2 example of the above-mentioned composition, the peripheral face can not only be made to produce the compressive residual stress by shot peening, where a tension is added to metal belt 2. Since shot peening is bent and it carries out in the position of addition roller 15, bending and giving bending to metal bell 1~2 with addition roller 15, A 1~Repeening is made to a still more effective thing. And the remaining stress which is bent and is pulled to the inner circumference side of metal belt 2 with addition roller 15 can be given. It is very effective when raising the fatigue life of endless metal belt 2 by the synergy of a more than. Initial stress becomes so large that the path of roller 15 is small. therefore, it mouth ~ obtains and the path of 15 is good to pull at least and to make it smaller than the path of low 510.11. In order to produce remaining stress effectively, it is desirable to bend as mentioned above and to perform shot peening in the position of addition roller 15, but even if it constitutes so that it may bend and Shot l-peening may be performed in position where addition low 515 is another, j composition of the desired end of the present invention can be done. the size of the tension applied not only to the strength of shot peening but to metal bell 1~2 and the thing which bend and gives with addition roller 15 and which it bends, and many things are boiled and are changed with the size of stress, etc. are possible for the size and the depth of remaining stress. It bends with the effect of shot peening, the effect by addition low 515 is changed, and it may enable it to adjust the depth, a size, etc. of remaining stress by constituting so that it may bend and both-way movement of the addition roller 15 can be carried out for illustration arrow roppo. [Effect of the Invention] As mentioned above, according to the present invention, it is very effective when effective remaining stress can be produced when raising the endurance of an endless metal belt, and aiming at improvement in a fatigue life of endless metal bell 1~, etc.

[Brief Description of the Drawings]

The figure in which Drawing 1 shows the condition of use of an endless metal belt roughly, the schematic diagram in which Drawing 2 shows the 1st example of the present invention, and Drawing 3 are schematic diagrams showing the 2nd example of the present invention. 2 [ ... It bends and is an addition roller ] ... An endless metal belt, 10.11 ... It pulls and is a roller and 12... A peening device, 15 Applicant representative Patent attorney Drawing 1 of Takehiko Suzue Drawing 2 Mouth~12 I;: □8 Drawing 3