SU1434198A1 - Gear-box - Google Patents

Abstract

The invention relates to mechanical engineering, to gears. The goal — to reduce the size and increase the reliability of the gearbox — is achieved by reducing the linear length of the kinematic chain, the number of rotations, their inertial masses, and by unifying part of the gear wheels. The blocks of gear wheels of the leading shaft 2 and the driven shaft 3 are mounted on them cantilever, edged to each other and made each in the form of concentric gear crowns 7, 8 and, respectively, crowns 9, 10, 11 placed in one plane with internal and external teeth . The blocks of gears of intermediate shafts 4, 5, 6 are each made in the form of pairs of console arms mounted on opposite ends of shafts 4, 5, 6 of gear rims 12 and 13, 14 and 15, 16 and 17c with external teeth. The shafts 4, 5, 6 are intermixed between the blocks of the wheels of the shafts 2 and 3 with the possibility of individual movement along the guide 18 with the help of drives 19, 20, 21. One of the drives 19, 20, 21 put in gear a block of gear wheels of one of the intermediate shafts 4, 5, 6 with the corresponding rims of the blocks of the drive shaft 2 and the driven shaft 3. The design provides several switching options for obtaining various gear ratios and reverse rotation. 1 il. I (L

Description

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; The invention relates to mechanical engineering and can be used in gears.

I gears.

: The aim of the invention is to reduce ha; barite and increase the reliability of the front gear box by reducing the linear length of the kinematic chain, the number of rotating

; inertial masses and due to unification

I parts of gear wheels box.

The drawing shows a diagram of the gearbox.

The gearbox includes a housing 1, a drive shaft 2, a driven shaft 3, and intermediate shafts 4-6 with blocks of gear wheels which engage into each other. Drive gear unit

shaft 2 is made in the form of a console mounted on the shaft 2 in the same plane concentric gear rims 7 and 8 of different diameters. The crown 7 has internal and external teeth, and the crown 8 has only internal. The cogwheel gears block 3 20

1 also made in the form of a console mounted on the shaft 3 in the same plane concentric gear crowns 9-11 of different diameter. The crowns 9 and 10 have internal and external teeth, and the crown 11 - only 15

Using one of the drives, for example, drive 21, by moving the shaft 4 along the guide 18 in the direction perpendicular to its axis, a pair of gears 12 and 13 are engaged with the corresponding gears 11 and 8 of the gears of the drive shaft 2 and the driven gear shaft 3. The torque during operation of the box is transmitted from shaft 2 through shaft 4 to shaft 3. And the required gear ratio is ensured by the engagement of the rims 13, 8 and 12, 11. In the box diagram shown in the drawing, there are several options for individual movements 4-6 shafts to obtain various ratios, as well as reverse rotation. The crowns 12-17 blocks of gear wheels of intermediate shafts 4-b can be made of the same diameter, which simplifies the repair of the box.

Claims (1)

Invention Formula The gearbox, containing the case, is located in it the leading, driven and intermediate shafts with blocks of gears which are brought into engagement with each other. J, J- - J, - .. -, ic I J - - - - J to internal. The blocks of gears are interleaved with the fact that, in order to reduce the cumulative shafts, 4-6 are each made in the form of pairs of console-mounted on opposite ends of the shafts 4-6 of the crown gears 12 and 13, 14 and 15, 16 and 17 with external teeth. The axes of all shafts 2-6 are parallel. The consoles of the drive shaft 2 and the driven shaft 3 with blocks of gear wheels are facing each other, and the intermediate shafts 4-6 are placed between them with the possibility of individual movement in the first 30 dimensions and reliability increase; the gear units of the drive and driven shafts are each made in the form of concentric gear rims with internal and external teeth that are cantilever-mounted on the shaft in one plane; the gears of intermediate gear shafts are in the form of console gears mounted on opposite ends of the shaft with external teeth, the axes of all shafts are parallel. Pendent OS direction. Moving the drive and driven shafts with the blocking of the shafts 4-6 is carried out along the directions of the gear wheels facing each other. ; 18 housing 1 using individual drives 19-21. The gearbox works as follows: guides and intermediate shafts are interposed between them with the possibility of individual movement in the perpendicular axial direction. Using one of the drives, for example, drive 21, by moving the shaft 4 along the guide 18 in the direction perpendicular to its axis, a pair of gears 12 and 13 are engaged with the corresponding gears 11 and 8 of the gears of the drive shaft 2 and the driven gear shaft 3. The torque during operation of the box is transmitted from shaft 2 through shaft 4 to shaft 3. And the required gear ratio is ensured by the engagement of the rims 13, 8 and 12, 11. In the box diagram shown in the drawing, there are several options for individual movements 4-6 shafts to obtain various ratios, as well as reverse rotation. The crowns 12-17 blocks of gear wheels of intermediate shafts 4-b can be made of the same diameter, which simplifies the repair of the box. Invention Formula The gearbox, containing the case, is located in it the leading, driven and intermediate shafts with blocks of gears which are brought into engagement with each other.     I J - - - - J characterized in that, in order to reduce characterized in that, in order to reduce dimensions and reliability increase; the gear units of the drive and driven shafts are each made in the form of concentric gear rims with internal and external teeth that are cantilever-mounted on the shaft in one plane; the gears of intermediate gear shafts are in the form of console gears mounted on opposite ends of the shaft with external teeth, the axes of all shafts are parallel. guides and intermediate shafts are interposed between them with the possibility of individual movement in the perpendicular axial direction.