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Technical requirements and inspection methods for roller chain couplings

Publisher: Ever-Power Mechanical Equipment

  Roller chainCouplingIt has the hardness of steel, the good corrosion resistance and environmental protection performance of the roller chain coupling. The GL type roller chain coupling ultra-dense machining machine tool can achieve the required degree. However, due to the special structure of the roller chain coupling, guide rail and spindle for ultra-dense machining, this type of machine tool is not only expensive, but also has a biased stroke. The shortcomings of small size, low cutting efficiency, and long clamping time make it difficult to meet the needs of mass production of larger workpieces.The integral roller lining has no joints, and can withstand various concentrations of acids, alkalis, salts, strong hydrogenating agents, organic compounds and all other strong corrosive chemical media (corrosion resistance is the same as that of PTFE).The roller chain coupling is an ideal product to solve the difficult corrosion problems of high-temperature dilute sulfuric acid, hydrofluoric acid, hydrochloric acid and various organic acids. It is resistant to positive and negative and vacuum, alternately changing between cold and heat, and the lining is not affected. It can be solved The delamination problem of PTFE-lined sheet equipment is that one of the defining characteristics of high processing is that in addition to the tolerance range, the size and batch size of the parts are also considered.Maintaining a tolerance of 5μm when processing large quantities of parts, maintaining a tolerance of 2μm when machining two matching parts, or using a small diameter end mill to process on a machine with a positioning degree of 0.3μm, etc., all belong to the category of high-density processing. .In other words, the size of the part and the batch size of the workpiece determine the difficulty of achieving certain specific tolerances.How to maintain the GL roller chain coupling [3]? The number of sprocket teeth on the roller chain coupling is generally an even number in the range of 12 to 22. If the number of sprocket teeth is less, the number of sprocket teeth on the sprocket The force increases; if the number of sprockets is larger, the compensation ability of the German Lingsi coupling will decrease. The index circle diameter of the sprocket on the half coupling dp=(12~13) or dp=(5 ~2)d; outer diameter of the housing DK=(3~2)dp; outer diameter of the half coupling D=(O.1~15)dp; length of the half coupling L=(1 ~2) d, when the torque is large, take the small coefficient.
  The driving point of the GL roller chain coupling is that it can transmit motion and power when the two wheelbases are far apart.It can work under low speed, heavy load and high temperature conditions and dusty conditions.It can ensure the accurate transmission ratio, the transmission power is large, and the force acting on the shaft is small.High transmission efficiency.The disadvantage is that after the hinge of the chain is worn out, the pitch becomes larger and the joint is disjointed.Installation and maintenance requirements are high.The point of gear transmission is: it can ensure the instantaneous transmission ratio is constant, the stability is high, and the transmission movement is accurate and reliable.The range of transmitted power and speed is large.The structure is compact, the work is reliable, and the larger transmission ratio can be achieved.The transmission efficiency is high and the service life is long.The disadvantages are: high manufacturing and installation requirements.