Driving chain capable of improving strength

Abstract

The invention discloses a driving chain capable of improving the strength. The driving chain comprises a plurality of chain mesh units and a pin shaft for penetrating through every two chain mesh units to be connected, each chain mesh unit is provided with two inner chain sheets correspondingly arranged and outer chain sheets arranged on the outer sides of the two inner chain sheets correspondingly, a pin hole is formed in each inner chain sheet, a fixing hole is formed in the position, opposite to each pin hole, of the corresponding outer chain sheet, and a concave arc edge is formed in the side, opposite to each outer chain sheet, of the corresponding inner chain sheet and located at the circumferential edge of the corresponding pin hole. Therefore, through the design of each concave arcedge, the force strength of each inner chain sheet can be effectively improved, the fracture around the pin hole of the inner chain sheet is avoided, effective bearing of higher pulling force is achieved accordingly, and the service life of the driving chain is prolonged.

Description

technical field [0001] The invention relates to a transmission chain, in particular to a transmission chain with increased strength. Background technique [0002] Such as figure 1 As shown, the existing transmission chain 1 includes a plurality of chain mesh units 11, and a shaft pin 12 for connecting any two chain mesh units 11; wherein, each chain mesh unit 11 has two corresponding The inner chain sheet 111 provided is an outer chain sheet 112 located on the outside of these inner chain sheets 111, and the aforementioned inner chain sheet 111 is provided with a pin hole 113, and these outer chain sheets 112 are opposite to the pin hole 113 A fixing hole 114 is opened at the position, and the outer chain piece 112 and the inner chain piece 113 are connected and fixed through the shaft pin 12 respectively passing through the pin hole 113 and the fixing hole 114. [0003] However, after actual use, it is found that the peripheral edges of the pin hole 113 and the fixing hol...

AI Technical Summary

Problems solved by technology

[0003] However, after actual use, it is found that the peripheral edges of the pin hole 113 and the fixing hole 114 are acute angles, so when the transmission chain 1 is stressed, the peripheral edges of the pin hole 113 and the fixing hole 114 are designed at acute angles, so the stress It is easy to produce too concentrated phenomenon, and then cause the pin hole 113 of the inner chain piece 111 or the fixing hole 114 of the outer chain piece 112 to break, so that the transmission chain 1 is damaged and can no longer be used, resulting in a reduction in the service life of the transmission chain 1

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