Track component and assembly method for constituting track

Abstract

The invention relates to a track component which contains track links and track connection links, and an assembly method thereof. The track connection links are divided into two kinds, namely the split type track connection links and the integral track connection links; the track component also contains the pins and pin bushes which are connected with the track links and the track connection links, track board fasteners and track boards. By changing the structure of the track component, the assembly becomes accurate and efficient; the curved working surface of each fastening nut of the track links has good localization performance and can be reused; and fastening bolt sealing parts are arranged in the links so that the track component has higher scientificalness and practicability. The split type track connection links adopts the two-layer teeth structure so as to change the forced directions of the links and ensure that the connection of the links becomes more stable; and integral track connection link servo thread holes are arranged to ensure that the pin holes can be enlarged and the pins can placed in or out of the pin holes conveniently. The two connection methods of the track can replace the long used connection method that people uses sledge hammers to beat the pins and uses cotter pins to lock pin bearings, thus the connection of the track becomes simple, fast, safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of conveying transmission, is generally applied to construction machinery, and relates to a track assembly and an assembly method for forming the track. Background technique [0002] At present, the transmission chains of crawler-type construction machinery in China all use dry or dry seals. Due to the short-term nature of the crawler lubrication, the gap between the pin shaft and the pin sleeve increases and the seal fails. As a result, the running resistance increases and the consumption The service life is less than half of the liquid lubricated track. [0003] In addition, the contact area between the connecting section of the track link and the rollers (that is, there is a longitudinal and transverse gap between the connecting section of the two links) is less than that of the middle section, and its wear is also greater than that of the middle section, which will cause the guide rail of the track link ...

AI Technical Summary

Problems solved by technology

[0009] However, in the connection process of the integral crawler link link, the length of the connecting pin sleeve is shorter than the press-fitting pin sleeve, and the outer diameter of the connecting pin shaft is smaller than the press-fitting pin shaft. After assembly, the center distance between the pin shafts is changed, and the connection Metal gaskets without sealing function are installed at both ends of the chain link pin sleeve without exception, which accelerates wear and causes interference between the connecting pin sleeve and the drive gear, resulting in premature leakage; the connection method used is also unstable

Among them, one is a clearance fit, which quickly becomes larger due to the impact load and the gap between the pin shaft and the pin hole, and the other is an interference fit, which still uses the connection method of artificial sledgehammer hitting the pin shaft , this method is easy to cause the interference to increase and the pin shaft assembly is not in place; or the pin shaft escapes due to the reduction of the interference. The connection between the twisted track and the link has become a safety hazard

Images