SU1441168A1 - Method of assembling bevel gear transmissions - Google Patents

Abstract

The invention relates to mechanical engineering, namely to means of controlling and assembling gears. The purpose of the invention is to increase the accuracy by means of providing the possibility of theoretically correct installation of gear wheels in the housing and their intentional axial displacement. This is achieved by the fact that they are mounted on a shell, the inner surface of which is mated with the outer face surfaces of the gear and wheel teeth. The magnitude of the intentional displacement of the shear along its axis is determined by means of an eccentric scale mounted on the shaft. 2 Il.

Description

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The invention relates to machine building, namely to means of controlling and assembling gears.

The purpose of the invention is to increase accuracy by enabling the theoretically right installation of gear wheels in the housing and their intentional axial displacement.

Fig. 1 shows a structural diagram of a device for theoretically correct wheel alignment; Fig. 2 shows the scales for counting the intentional axial shift of the gear.

The fixture (Fig. 1) includes a shell 1, the inner conical surface of which is associated with the outer ends of the gear teeth 2 and the wheel (not shown). On the shell 1, protrusions are made to which with the help of screws 3 a conical sleeve 4 is attached, which is connected with the cone of the tops of gear 2,

FIG. 2 shows a shaft 5 of the wheel on which the collar 6 is fastened, consisting of two halves connected by bolts 7 and nuts 8. A scale is made on one of the halves of the collar 6. The axis of the outer cylindrical surface of the scale is eccentric with respect to the axis of the shaft 5. The collar 6 is in contact with the end face of the gear 2.

The assembly of the cone gear is carried out as follows.

Along the circumference of the tops of the gear 2, the conical sleeve 4 is mounted. The shell 1 is attached to it so that its inner surface is mated with the outer ends of the gear teeth 2. The axes and the gears are displaced axially so that the outer ends of the wheel teeth coincide with the inner shell surface 1. The coincidence of the additional cones forming gear 6 and the wheel is the condition of the theoretically exact position of the conical wheels, in which

the axial displacements of the gear 2 and the wheels are zero. After that, the conical sleeve 4 and the shell 1 are disconnected and removed from the gearbox housing. On the shaft 5 of the wheel, both halves of the collar 6 are fastened so that they are opposite the inner end of gear 2 and rotate the shaft 5 of the wheel together with the collar 6 until the frame meets the end of gear 2. Then set the distance from the axis of the shaft 5 to the end gear 2, the output t of the cabinet from contact with gear 2, tells it to move axially and again measure the distance. At the same time, it is necessary that the difference in the readings of the scale corresponds to the specified intentional axial shift of gear 2.

Form of Invention

The method of assembling bevel gears, which means that by combining the additional cones forming a gear in the gearbox housing with a theoretically accurate positioning of the wheels relative to each other, the axle directional gear is deliberately displaced by a given amount, characterized in that precision, to combine the additional cones of the gears and wheels using a conical sleeve connected to the shell, the inner surface of which aets external end surfaces of the teeth and gear wheels, and for reference quantities, intentional rennogo biasing pinion in the axial direction using the scale located on the shaft of the wheel and formed with a cylindrical surface contacting the end surface of the pinion and mounted eccentrically with respect to the wheel axis.

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Compiled by B. Athos Editor A. OgarTechred M. Hodani. °,

Order 6274/41

V11IIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

1441168

Circulation 680

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Claims (1)

SUMMARY OF THE INVENTION 'A method for assembling bevel gears, which is that by combining the generators of the additional cones, a gear is installed in the gear case with a theoretically exact arrangement of the wheels relative to each other and 30 intentional axial gear displacements are made by a predetermined amount, characterized in that, in order to improve accuracy, to combine the generatrices of additional cones of the gear and wheel, a conical sleeve connected to the shell is used, the inner surface the axis of which is mating with the external end surfaces of the gear teeth of the gear and the wheel, and for measuring the value of the intentional: axial displacement of the gear in the axial direction, a scale is placed on the wheel shaft and made with a cylindrical surface in contact with the end face of the gear and mounted eccentrically with respect to the axis wheels. J 441168