机械类中英文翻译

机械类中英文翻译内容摘要：

this part of content when the introduction cam gear, should point out each kind of cam gear the good and bad points and its the adaption situation, showed each kind of cam gear the inner link, will build the foundation for the later translation cam and the column cam contour design. 3rd, the throwout lever movement rule (1) the cam gear cycle of motion and the basic term terminology push the regulation movement angle: With from pushes the cam corner which the regulation corresponds。 Far stops the angle: With from far rests the cam corner which the regulation corresponds。 Return trip movement angle: With cam corner which corresponds from the return trip。 Nearly stops the angle: With from nearly rests the cam corner which the regulation corresponds。 Cam: Take the cam axle center as the center of a circle, take its outline slightly to diameter r0 as the radius circle。 From ravelling schedule: In pushes in the regulation or the return trip from the biggest displacement, indicated with h。 : The cam center of rotation with from guides way the bias distance, indicated with e. Types of Cams Plate cams are simple to follower can be moved in various patterns with various rise /fall should be controlled to avoid abrupt changes in force transmitted from the cam to the should carefully determine horizontal force ponents,since these present problems designing the follower assembly reactions occur at points A and reaction values must be relative vertical position of point A with respect to B needs to be raised if the reaction value at Bis position of B should be as close to cam as possible to minimize flexure in the rollerfollower support. This type produces reciprocating motion in the ,dorces need to be determined and dimensions chosen so as to avoid excessive ponent tapered roller follower is frequently employed。 the groove in the periphery of the cam should be shaped to acmodate the type of cam is expensive to cylindrical cam has two outstanding is the fact that the cam is positive outside forces (such as gravity or spring action ) are needed to hold the follower against the working surface of the second feature is the fact that the follower can move through a plete cycle in the course of several revolutions of the example,it is possible to design the cam so the follower could move from a starting position at the left end to the extreme right position in three revolutions( or more),then the starting position in two variations are possible. A translation cam is the figure shown the cam reciprocates horizontally and the follower moves up and pivoted follower can be used with this type .The translation cam can be made positive by providing a guided plate with an inclined slot for the cam。 the slot cam then engage a pin or roller on a guided vertical reciprocated the latter type ,however,a plete force analysis is a critical phase of the design. In this type,the cam rotates and the follower (ususlly a r。