CZ2012504A3

CZ2012504A3 - Clearance-free worm and wheel gear with disk-type wheel

Info

Publication number: CZ2012504A3
Application number: CZ20120504A
Authority: CZ
Inventors: Kutman@Tomás
Original assignee: Kutman@Tomás
Priority date: 2012-07-23
Filing date: 2012-07-23
Publication date: 2013-11-27
Also published as: CZ304162B6

Abstract

Bezvulové snekové soukolí s diskovým kolem (1), sestává z pevné poloviny (11) a volné poloviny (16) kola (1), které se stýkají ve stredové rovine (17) diskového kola (1) a jsou opatreny spolecným shodným spirálním ozubením (9) pro spoluzabírající snek (2) jehoz osa (5) je vychýlena o úhel (.alfa.) od svislé roviny (17) vedené osou (4) sírky ozubení (9) diskového kola (1) kolmo na osu (6) rotace kola (1). Bezvulovost je dosazena pootocením volné poloviny (16) do protismeru otácení pevné poloviny (11) a jejím zafixováním polohovými srouby (13).The bezelless gear train with the disc wheel (1) consists of a fixed half (11) and a free wheel half (16) (1) which meet in the central plane (17) of the disc wheel (1) and have a common identical spiral toothing ( 9) for the co-engaging slide (2) whose axis (5) is deflected by an angle (.alpha.) From the vertical plane (17) guided by the width axis (4) of the toothing (9) of the disc wheel (1) perpendicular to the rotation axis (6) wheels (1). Freeness is achieved by rotating the free half (16) into the counterclockwise rotation of the fixed half (11) and fixing it with the positioning screws (13).

Description

-1-

Disc-free worm gears with disc

FIELD OF THE INVENTION The present invention relates to a new method of arranging a worm gear with a cylindrical worm, which allows a more robust engagement in the toothing with the definition of hip clearance.

Background Art

To date, worm gears with a 90 ° """""" worm " The duration of the simultaneous engagement between the teeth of the wheel and the auger is from 1.3 to 1.6 depending on the transmission ratio, which is particularly important for the low load-bearing capacity of the gearing, the ability to transmit power during impact operation and does not allow for defining the lateral clearance between the worm gear and the worm for free gear transmission without power limitation. Similarly, the worm gears with cylindrical worm, whose axis is deflected from the center plane of the disc wheel.

The essence of the technical solution

Said condition of the worm gear with the disc wheel substantially favors a new arrangement of a two-wheel disc wheel. These meet in the central plane of the disc wheel and are provided with the same spiral toothing, corresponding to the toothing of the cylindrical screw, the axis of which is deflected from the central plane through the width of the toothing of the disc wheel. Their connection allows mutual rotation and fixation to achieve toothlessness in the toothing.

-2- fykhled pictures on cuts, oh

wkroceeh

Fig. 1 shows a view of the engagement of a cylindrical screw with a spiral worm wheel half,

Fig. 2 is a schematic sectional view of a vertical axial plane passing through the worm wheel axis and the intersection of the spacing distance of the axial distance.

3, the deflection of the axis of the cylindrical screw is indicated by the angle α from the central plane passing through the center of width of the toothing of the worm wheel and the intersection of the pitch point of the axial distance.

Fig. 4 and Fig. 5 schematically show the distribution of the worm wheel passing through the center of the tooth width for the possibility of turning its halves and their fixation after the setting of the zero-free state.

Fig. 6 schematically shows the assembly of the disc wheel with the indication of the gearing engagement. tmotoci '. · -3- Execute.cl < 2.n £ / -czs * LX < y

The structural arrangement of a helical worm gear with a disc wheel is shown schematically in Fig. 1, where a view of the half of the disc wheel 1 in engagement with the cylindrical screw 2 is shown. The thread 8 of the cylindrical screw 2 and the spiral toothing 9 of the worm wheel 1 are schematically shown. is provided in a central plane 17 extending through the axis 3 (FIG. 2) of the toothing profile 1 with the toothing width 4 of the toothing plate 7. This division of the disc wheel 1 is also practically used to arrange it for the smooth running of the gearing. At the intersection of the axis 5 of the roller screw 2 and the vertical plane passing through the wheel rotation axis 6 (FIGS. 1, 2). is the pitch point 7 (FIG. 1) which determines the axial distance A1 of the gearing a (FIGS. 1, 2) with respect to the deflection of the axis 5 of the cylindrical screw 2 by an angle α of 10¾130 °. The placement of the cylindrical screw 2 in the disco wheel 1 is further indicated in Fig. 3, where the spiral part 9 (Fig. 2) of the disc wheel 1 is also schematically visible. at the opposite end of the cylindrical worm 2 and the second flank of the spiral gearing of the wheel 1 for bidirectional operation of the gearing. Making use of these possibilities is the realization of a no-chill. of this gearing. As shown schematically, the HBfftBtaTfg disc wheel 1 (Fig. 4e shows the central plane 17 guided by the center of the toothed toothed axis 3 of the toothing is a fixed half 11 with a centering shoulder 14 and a shaft 12 on which a free half 16 is mounted By rotating the free half 16 opposite to the rotation of the fixed half 11, the opposite sides of the spiral gears 9 of the disc 1 are contacted with the flanks 8 of the cylindrical screw 2. In this position, the loose half 16 is fixed with the screws 13 (FIG. ), thereby achieving a smoothness of the gearing.

Industrial usability

The gearless worm gear with the disc wheel with the structural arrangement according to the present invention is intended for the gearing with the required increased load capacity in the toothing due to the lateral spiral parts of the toothing and thus the increased number of gears in the current engagement, including impact operation with the possibility of toothless running in the toothing.

Claims

i Norokv no_

1. A worm-free, worm-geared worm gear, characterized in that the disc wheel (1) comprises

the width of the toothing (40) of the disc (1) perpendicular to the axis (6) of the wheel rotation (1).

2. Press-fit wheelless helical gearing, according to claim 1, characterized in that the wheel wheel (1) is divided in a slanted central plane (17) extending through the axis (4) of the toothed disc wheel (1) perpendicular to the axis (6) wheel rotation, a fixed half (11) with a centering shoulder (14) and a shaft (12) on which the disc half (16) of the disc (1) is mounted, rotatable to the opposite direction of the fixed half (11) ) for contacting opposite side spiral teeth (9) of the freewheel (16) of the longitudinal wheel (1) with the hobbing (8) of the screw worm (2) | ) fixed with screws (13). AND