SU905545A1

SU905545A1 - Toothed gearing

Info

Publication number: SU905545A1
Application number: SU802879497A
Authority: SU
Inventors: Всеволод Витальевич Шульц; Авадий Афанасьевич Буринский
Original assignee: Ленинградский Ордена Трудового Красного Знамени Инженерно-Строительный Институт
Priority date: 1980-02-08
Filing date: 1980-02-08
Publication date: 1982-02-15

Description

1one

Изобретение относитс к машино строению, а именно к цилиндрическим зубчатым передачам с винтовым.и зубь ми, имеющими выпуклые и вогнутые поверхиости, образующие внешнее зацепление, и может быть использовано в силовых зубчатых передачах, где необходимо повышение их нагрузочной способности.The invention relates to mechanical engineering, in particular to cylindrical gears with screw and teeth having convex and concave surfaces that form external gearing, and can be used in power gears where it is necessary to increase their load capacity.

Известны цилиндрические зубчатые передачи с вьтуклыми и вогнутьми поверхност ми винтовых зубьев колес, образующих внешнее, например, двухзвольвентное зацепление J,Spur gears are known with the tight and concave surfaces of the helical teeth of the wheels that form the outer, for example, two-joint gear J,

Недостатками известных зубчатых передач вл ютс увеличенные контактные напр жени .The disadvantages of the known gears are increased contact voltages.

Наиболее близкой к предлагаемому изобретению по технической сущности и достигаемому эффекту вл етс зубчата передача, содержаща шестерню с винтовыми зубь ми, имеющими активные выпуклые профили, и образующее с ней двухэвольвбитное за1а ёНпение колесо, зубь которого имеют активные вьшукло-вогнутые профили , а участок выпуклого профил на головке зубьев шестерни и-вогнутый профипь переходной поверхности нохки зубьев колеса приработаны совместно 2 Closest to the proposed invention in its technical essence and the achieved effect is a gear transmission, containing a gear with helical teeth having active convex profiles, and forming with it a two-volt back-up wheel, the teeth of which have active convex-concave profiles, and a convex profile section on the head of the gear teeth and the concave profile of the transitional surface of the wheel teeth nogging are jointly operated 2

Недостатком известной зубчатой передачи вл етс ограниченна нагрузочна способность.A disadvantage of the known gearing is the limited load capacity.

10ten

Цель изобретени - повышение нагрузочной способности передачи.The purpose of the invention is to increase the transmission capacity.

Указанна цель достигаетс тем, что угол зацеплени переходной поверхности ножки зубьев шестерни This goal is achieved by the fact that the angle of engagement of the transitional surface of the pinion gear leg

ts вогнутого профил с поверхностью выпуклого профил на головке зубьев колеса выполнен в пределах 2-15°, а радиальный зазор между выступами зубьев колеса и впадинами зубьев The ts of the concave profile with the surface of the convex profile on the head of the wheel teeth is made in the range of 2-15 °, and the radial clearance between the protrusions of the wheel teeth and the depressions of the teeth

М шестерни выполнен в пределах (0,10 ,25)т, где m - модуль нормальный.M gears are made within (0.10, 25) tons, where m is a normal module.

Claims

FIG. 1 shows a gear in an end section, FIG. 2 - a gear wheel tooth with a contact zone on its side surface. The gear gear comprises a pinion gear 1 with helical teeth having active convex profiles from the circumference of the teeth projections d. to the circumference of the boundary points dg, .a from the circumference of the circumferences of the hollows of the teeth do. - the active concave profile of the run-in transitional surface, and the driven wheel 2, whose teeth have active convex profiles from the circumference of the protrusions of the teeth dQ2.Ao of the circumference of the boundary points dgrt, and from the circumference dgg D ° of the circumference of the tooth cavities d. The concave concave profile of the transient surface. In addition, dJ, d is the pitch circle, dh-f, db2 are the main circles, Cxj is the radial gap between the circumference of the protrusions of the wheel teeth and the hollows of the gear tooth, KJL., Cd is half a meter and up to the theoretical point of contact, and n is the gear pole o (tw is the engagement angle, Pn - the projection of the engagement lines on the end section. Fig. 2 shows the contact area in the gear train, where the additional contact area, which is formed by using the gear pinnap surface of the stem, is shaded worked together with the section of the convex profile on the head of the teeth of the wheel.After joint grinding of the teeth of the wheels in the working housing under the working load, the transmission operates as follows .When the pinion 1 and the driven wheel 2 rotate, the run-down section of the convex profile on the gear head contacts to the section of the concave profile of the running-in transitional surface of the wheel-tooth stem, the portion of the involute surface of the wheel tooth is in contact with the portion of the involute surface of the gear tooth, and this between the theoretical points of contact k ,. Linear contact occurs with the engagement 0 /, tW 02–15, and the concave profile of the running-in transitional surface of the pinion gear pin, the coil is made with a radial clearance between the circumference of the tooth troughs and protrusions of the wheel teeth within 0.1 to 0.25 t, contacts with the attached portion of the convex profile on the head of the wheel teeth. A gear can be cut by running on gear milling, gear cutting and gear grinding machines. To cut the teeth of both wheels, it is enough to have a standard tool, for example, a cutter, a rail, a screw mill or a grinding wheel. The use of the invention allows the transmission to increase the contact area in the engagement by 10-20% compared with the known transmission, which in turn reduces the contact stresses in the engagement and increases the load capacity of the transmission. Claims of the gearing system comprising a gear wheel with helical teeth, having active convex profiles and forming with it a two-voltage gearing wheel, whose teeth have active convex-concave profiles, and a section: a convexly profile on the head of gear teeth and a concave profile of the transition surface of the wheel teeth bonded together, characterized by the fact that, in order to increase the load capacity, the angle of engagement of the transitional surface of the pinion teeth of the gear wheel of the concave profile with the surface of Clog profile on the head wheel vsholnen teeth within 2-15 and the radial clearance between the protrusions and recesses of the gear teeth of gear teeth formed within the (O, l-0,25) in, where W - normal module. Sources of information taken into account during the examination 1. USSR author's certificate No. 599115, cl. F 16 H 1/08, 1976.

2. USSR author's certificate for application number 2517638 / 25-28, cl. F 16 H 1/08, 1971 ,.