The focus of this paper is: how to correctly select the rounding pressure angle of the rib cutter when the gear end face is chamfered. At this time, if the tool end pressure angle is still equal to the gear end pressure angle, the chamfer on the sharp side of the tooth portion will be uneven, resulting in a small chamfered chamfer and a large chamfered root, as shown by the middle curve D. At this time, if you want to obtain a uniform chamfering curve on the sharp side of the workpiece, the circular pressure angle of the tool should be equal to the circular pressure angle of the curve C projected on the plane A. It can be seen that the pressure angle after projection has increased significantly.
2.2 The design of the pressure angle of the end face of the extruded rib cutter is calculated as the correct circular pressure angle of the rib cutter after the chamfering of the tooth end. It is necessary to calculate the rounding pressure angle fs of the curve C projected on the plane A. The following formula is used to derive its calculation formula: as shown, it is known that the workpiece end face modulus ms; the circle diameter df; the arc tooth thickness sfs; the workpiece outer diameter de; the workpiece tooth number z; the circle round spiral angle f; End face pressure angle fs; other parameters are as shown.
According to the geometric relationship, (1) the base circle end face arc tooth thickness Sbs: Sbs = db (Sfs / df invfs) (2) the base circular tooth groove width Wbs and the cogging half angle b: Wbs = db / z - Sbs; b =Wbs/db(3)=0, the X-axis coordinate of the circle xf:xf=05dfsin(b fs)(1) where: fs=tgfs-fs=invfs When =0, the Cartesian coordinate xe on the top circle :xe=05desin(b es)(2) where: es=tges-es=inves(es is the top pressure angle of the workpiece) (4) When >0, a space curve C is formed on the sharp side tooth surface of the workpiece After projecting the curve C to the plane A, a new curve is formed. The pressure angle of the new curve increases, and the coordinates of the circle and the top circle also change, forming new coordinates.
Electric Kettle
Electric Kettle are made by food grand stainless steel and Polypropylene. It helps you to have a 1.8L bottle of boiled water in 5 minutes. Type 201 Stainless stell is the main material for the electric kettle housing. sometimes called a tea kettle or teakettle, is a type of pot, typically metal, specialized for boiling water, with a lid, spout, and handle, or a small kitchen appliance of similar shape that functions in a self-contained manner. Kettles can be heated either by placing on a stove, or by their own internal electric heating element in the appliance versions.
Features:
360-degree swivel base: Great way with cordless pouring; kettle lifts off base for cord. Separate base to move kettle conveniently, 360°rotation design.The cord can be wrap neatly into the base bottom for easy storage. The concealed stainless steel heating element brings fresh hot water with no metal Taste.
Soft Handle for easy using: Comfortable stay-cool handle; brushed stainless steel finish. Cool-touch buttons and ergonomic stay-cool handle.
Large Capacity for Multiple Cups: 1.8 L large capacity, with Max. water level inside the kettle. almost 1.5x the size of most tea makers. Brew up to 6oz at once! Perfect for small gatherings & parties!
Fully Stainless Steel Faster Boils: Stainless Steel Interior cover with no plastic taste. Boils water rapidly, save more time and energy. Faster than the microwave & safer than your traditional stovetop teapot.
On/off switch with LED light.: Automatic On/Off switch makes life easier. No need standing by for hot water. It shuts down when reaches a full rolling boil. Boil-dry and overheat protection to ensure the safety use.
Time Saver & Higher Safety: 1500 watts energy efficient for quick heat-up time brings water to a boil, Fast boil, auto shut off and boil dry protection technology with three-prong plug.
Brushed stainless steel housing
Applications
Making hot water for tea brewing.
Making Coffee.
Cool milk-tea.
Steaming eggs.
Any occation if you need hot water in short time.
Any color of plastic is available to produce but in big quantity. Its
Electric Kettle,Stainless Steel Electric Kettle,Electric Boiler,Big Capacity Electric Kettle
Guangzhou Taipeng Electrical Appliances Technology CO., LTD. , https://www.taipengelectric.com