SU1587273A1 - Gearbox - Google Patents

Abstract

The invention relates to mechanical engineering. The purpose of the invention is to increase the reliability of the box by increasing the smoothness of gear changes. The wheels 4 are mounted rotatably on the intermediate shaft 2 and are permanently engaged with the wheels 5 of the drive shaft 1 and the wheels 6 of the driven shaft 3. Between the wheels 4 and the shaft 2 are mounted couplings for selectively connecting the wheels 4 to the shaft 2. The couplings are made in the form of ball bearings radially deformable inner yoke 8. Shaft 2 is hollow, and there are placed sliding shafts 7, 10 interacting with protrusions 9 on the sleeves 8. The protrusions 9 are placed in the grooves of the shaft 2. To enable the desired transmission by axial movement of the rods 7, 10 comm The corresponding wheels 4 with the shaft 2 are inserted. When the rods 7, 10 interact with the projections 9, the sleeve 8 deforms, jamming the rolling bodies of the ball-bearing sleeves and connecting the corresponding wheel 4 to the shaft 2. The coupling design allows for smooth gear shifting on the move, practically without breaking the power flow, for which the working stroke of the rods 7, 10 includes a section of simultaneous interaction with two adjacent sleeves. 1 hp f-ly, 4 ill.

Description

(21) 4490347 / 25-28

(22) 10/06/88

(46) 08.23.90. Bul № 31 (75) N.A. Arakel

(53) 621.833 (088.8)

(56) USSR Author's Certificate No. 1191656, cl. F 16 N 3/12, 1983

USSR Author's Certificate No. 1259070, cl. F 16 N 3/08, 1985

(54) GEARBOX

(57) The invention relates to mechanical engineering. The purpose of the invention is to increase the reliability of the box by increasing the smoothness of gear changes. The wheels 4 are mounted rotatably on the intermediate shaft 2 and are permanently engaged with the wheels 5 of the drive shaft 1 and the wheels 6 of the driven shaft 3. Between the shafts 4 and the shaft 2 there are clutches for selectively connecting the wheels 4 to the shaft 2

i

made in the form of ball bearings with an inner race 8 elastically deformable in the radial direction. Shaft 2 is hollow and there are axially sliding rods 7 and 10 interacting with the projections 9 on the collars 8. Protrusions 9 are placed in the grooves of the shaft 2. For switching on the desired gear by axial movement of the rods 7, 10, the associated wheels 4 are connected to the shaft 2. When the rods 7, 10 interact with the protrusions 9, the yoke 8 is deformed, wedging the rolling elements of the sleeves in the form of ball bearings and connecting the corresponding wheel 4 to the shaft 2. The coupling design allows both pechit smooth shifting on the fly, with virtually no interruption of power flow, for which stroke rods 7, 10 comprises simultaneously reacting portion with two adjacent couplers. 1 3. p. F-ly, 4 ill.

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The invention relates to mechanical engineering, in particular to gearboxes.

The aim of the invention is to increase the reliability of the transmission. FIG. 1 shows the gearbox; in fig. 2 and 3 — coupling for selective connection of the wheels with the shaft, embodiments; in fig. 4 - clutch in working condition.

1 The gearbox contains shafts 1–3, in- leading respectively intermediate and driven. On the shaft 2, the gear wheels 4 are mounted with the possibility of rotation, constantly engaging with the multi-leg 15 drums of the gear wheels 5 and 6 rigidly fixed on the shafts 1, 3. Between the corresponding rotating blades 4 and the shaft 2 on which they are mounted, Couplings with elastically radially displaced electric drive shaft 1 with a drum of wheels 5 are rotated, transferring idle rotation to corresponding wheels 4 of shaft 2, axial movement of the rod 7 through the lugs 9 elastically deform the inner ring 8 of the ball support Wheel 4 (Fig. 4). As a result, the clutch balls are wedged between the surfaces of the outer and inner rings, making a rigid connection of the wheel 4, a shaft 1 engaging with the wheel 5, and a shaft 2. Further, by axial movement of the rod 10 in the same way, the wheels make a rigid connection of the necessary wheel 4 engaging the wheel 6 shaft 3 and with the shaft 2.

The installation of the rotating wheels 4 on the intermediate shaft 2 and the use of two rods 7, 10 for the selective connection with the shaft 2 provide gear shifting in a wide range of gear ratios. The nature of the work of the ball-beamed radially el. „„ Ficks (gradual deformation by the basements for selective connection of о and „™ f- .." makes smooth switching

4 wheel and shaft 2 wheels. with almost no break

power flow. For this work stroke

rods 7, 10 when switching includes

plot simultaneous.

two adjacent couplings.

Claims (2)

Invention Formula There is also a device for moving the ele cops couplings. The shaft 2 with rotating coyes 4 is hollow with radial “new” interaction with 1pazah, coupling elements are placed in grooves, 35 Plot simultaneous in and the device for their movement is made as interacting with the elements of the sleeves located in the cavity of the shaft 2 jcoocHoro axial stock. 7. Gearbox containing shafts 30 mounted on one of them for rotation, and on the other rigidly engaging gears placed between the respective rotating wheels and the shaft on which they are mounted, couplings with elastically reversible radially directed elements for selectively connecting said wheels and the shaft and the device for moving the coupling elements, the shaft with the rotating wheels is made hollow with radial grooves, the elements of the coupling are placed in the grooves, and the device for moving them is made in the form of interacting placed with them in the cavity of the shaft of a coaxial axial sliding shaft, characterized in that, in order to increase the reliability 40 Couplings are made in the form of ball bearings with elastically deformable in the radial direction of the inner race 8, and the movable element - in the form of a radial protrusion 9 facing the axis 2 on the inner race 8. In addition to the stem 7, an additional stem 10 similar to the main shaft is placed in the hollow shaft 2. The outer cage of the sleeves in the form of ball studs are the wheels themselves 4. Between the last and the last as an additional support I installed 11 rolling bodies, and between the adjacent bearings 8 ball bearings - distance washers (not shown). The number of protrusions 9 on the holder 8 may be different (Fig. 2, one, Fig. 3 and the movable element - in the form of a radial protrusion facing the axis of the shaft on the 50 inner ring. 2. Transmission according to claim 1, characterized in that it is provided with an additional time magnetic, hydraulic, etc. To reverse the rotation of the driven shaft 3, gears 12 and 13 with parasitic gear 14 are provided in the gearbox. A parasitic gear can be installed between one of the wheels 4 of the shaft 2 and the corresponding wheel 6 of the shaft 3. Transmission works as follows. meshed in the hollow shaft with the same main stem, and the hollow shaft is intermediate. The drive shaft 1 with the wheel drum 5 rotates, transferring idle rotation to the corresponding wheels 4 of the shaft 2. By axial movement of the rod 7 through the protrusions 9, the inner ring 8 of the supporting wheel holder 4 is elastically deformed (Fig. 4). As a result, the clutch balls are wedged between the surfaces of the outer and inner rings, making a rigid connection of the wheel 4, a shaft 1 engaging with the wheel 5, and a shaft 2. Further, by axial movement of the rod 10 in the same way, the wheels make a rigid connection of the necessary wheel 4 engaging the wheel 6 shaft 3 and with the shaft 2. The installation of the rotating wheels 4 on the intermediate shaft 2 and the use of two rods 7, 10 for the selective connection with the shaft 2 provide gear shifting in a wide range of gear ratios. The nature of the work of the ball „„ of the fliers (the gradual deformation of the “f -... ™ f”) is smooth power flow. For this work stroke rods 7, 10 when switching includes plot simultaneous. two adjacent couplings. Invention Formula    new interactions with Simultaneous plot in 2. Transmission according to claim 1, characterized in that it is provided with an additional time meshed in the hollow shaft with the same main stem, and the hollow shaft is intermediate. FIG. g