48results about How to "Good meshing effect" patented technology

The invention provides a cup-shaped harmonic gear with a common tangent type double-circular arc tooth profile. The cup-shaped harmonic gear is composed of a wave generator, a flexible gear and a rigid gear; the tooth profiles of the flexible gear and the rigid gear of the harmonic gear transmission are common tangent type double-circular arc plane tooth profile. The invention also provides a tooth profile design method of the cup-shaped harmonic gear with the common tangent type double-circular arc tooth profile; the tooth profile design method comprises taking the coning deformation of the cup-shaped flexible gear in the axial direction into account, and in order to avoid interference, performing enveloping and fitting calculation on the circular arc part of the tooth root of the rigid gear by use of the movement locus of the gear teeth of the front section of the flexible gear according to the maximum radial deformations on the front, middle and rear sections of the flexible gear and the movement locus difference of the gear teeth of the flexible gear relative to the tooth groove of the rigid gear, and performing enveloping and fitting calculation on the circular arc part of the tooth crest of the rigid gear by use of the movement locus of the gear teeth of the rear section of the flexible gear so that the flexible gear and the rigid gear are in continuous conjugate transmission in the entire engagement interval. The cup-shaped harmonic gear with the common tangent type double-circular arc tooth profile has the advantages of increased number of engaged teeth, increased engagement contact surface, high bearing capacity, long fatigue life and the like.

This invention relates to a method for connecting and prolonging woods in the construction field, which sets mutual coincident teeth at the connecting end of a ruled material to prolong the material, in which, the set of teeth can be standardized and the meshing process can be applied in batch, the intensity of the meshed material is equal to the integer one, especially, the design of wide and narrow teeth synchronously increases the meshing result.

A starter is disposed with an elastic body which generates slide resistance between the inner circumferential surface of a cylinder hole of a movable core and a first annular groove section of a flange section of a hook and the starter has an air damper function; and consequently, the effect of suppressing compression of a drive spring can be sufficiently obtained without reducing the suction speed of a plunger as much as possible and an engine can be rapidly started up.

The invention discloses a power maintenance tool dispensing device for changing an elastic component pressure regulating stabilizer through hand sorting. An external hand wheel handle rotates with a hand wheel rotation circle; a butt-joint rod is connected to a rotation drum to drive the whole interior of the device to operate, and a gear sleeving the rotation drum to rotate synchronously; a gearchain drives movable dispensing boxes to operate synchronously through the gear, and allows box cover telescopic plates to automatically open and close through elastic components; sliding blocks can change the internal air pressure of the boxes through gravity changing, clamping blocks and clamping grooves are in opening and closing connection, the internal adsorption force becomes larger, the internal weight of the boxes is balanced to prevent shaking off; since a convex positive magnetic ring and a convex negative magnetic ring at the front end of the gear attract each other to drive rotation, and the manual rotation load is reduced; during rotation, tools in each dispensing box can be viewed at a window, manual operations can be allowed, the operations can be repeated, the practicability is high, storage and searching are facilitated, and time and effort can be saved.