CS219995B1 - Gear box with conical and front foothed gear - Google Patents

Abstract

The invention relates to a change-speed transmission with a bevel and spur gear mechanism for driving the belt conveyor in above-ground coal mining. The invention relates to the constructional solution for the two-part case of the bevel and spur gear mechanism and the manner of mounting the rolling bearings of the driving bevel gear in the transmission case. It is the object of the invention to make a considerable improvement in the lubrication of the three bearings mentioned and to simplify the structure and manufacture of the transmission case. The essence of the invention of the bevel and spur gear mechanism with shafts in the horizontal position which are supported in a two-part case of the transmission, which is split in the axis of the shafts and consists of a lower part and a cover of the transmission case, lies in the constructional solution for the case of the transmission, in which the flanges of the lower part of the transmission for supporting the rolling bearings of the driving bevel gear are formed in the interior of the lower part and of the cover of the transmission casing. In this arrangement, the driving bevel gear is supported with its rolling bearings in the said flanges of the lower part of the transmission case such that, on one side, it is supported next to the hub in the flange, radially in a radial rolling bearing and axially in two axial barrel-type rolling bearings and, on its other side, is supported at the entry journal in the inner flange, radially in the radial rolling bearing.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bevel and helical gearbox for driving a conveyor belt for surface mining of coal. BACKGROUND OF THE INVENTION The present invention relates to a design of a two-piece helical-bevel gear housing and to a method for accommodating roller bearings of a bevel pinion in a gear-housing.

SUMMARY OF THE INVENTION The bevel-helical gear unit with horizontal shafts mounted in a two-piece gear housing divided by a shaft axis consisting of a bottom and a gear housing cover consists in a structural design of the gear housing in which the lower gear housing flanges are mounted in the inner space the bottom and cover of the gearbox. The tapered pinion is mounted in its flanges at the bottom of the gearbox by means of its rolling bearings, so that on the one side at the hub it is mounted in the flange radially in one radial rolling bearing and axially in two axial spherical roller bearings. flange radially in radial roller bearing.

BACKGROUND OF THE INVENTION The present invention relates to a two-piece bevel gear housing with bevel and spur gears and to a method for receiving bevel pinion roller bearings in a gear housing.

Until now, for bevel and helical gear units with horizontal shafts housed in a two-piece gear housing divided in the shaft axis, the design of the gear housing and that of the bevel pinion bearings in the gear housing have been spaced freely pinion. with its hub is mounted radially in a radial bearing in the flange of the inner gear and the bottom baffle vstuprnho ^No EPU stored ^TOWING axi ^AL them in two axi ^s Linaria ^H bearings and radially in a radial bearing in the outer flange of the outer wall of the housing. The thus made saving cone · pinion on the input pin axi ^AL them in two axial teriskách and radmlne in one radial bearing in the outer flange ^{in some} j ^{puppy y} têtes ^straight gear unit, or through to the inserted bearing sleeve is formed an enclosed space into which oil for lubricating rolling bearings in ^{Adi s} p ^o n ^e VHO of ^{h y} otovenými hole drilled in the outer flange of the outer body wall of the gear or bearing bush. Oil @ ^d is about the opening or channel ^{of U when} the weighing of both the ^{D-chy t} NYCHA pockets ^cast-b not on Riva ^P ^ ^h inside enýc ^{in some} j ^puppy body ^{y p d} s ^ky with vines. Splattering oil gears brodícími in an oil bath, arranged in the bottom of ^the R ^and n ^E are sebum ^and at the ^longitude Echna ostetrn Vahva ^l of ^fo with ^k and ^BC evodov ^alkyl and oil stétojírnm from walls têtes ^p revodov ^lever into Uve ^d ených ^{Chr yt} NYC ^hk and ^p EC sebum ^and to ^ADE the more branched ^and holes drilled in the outer flange of the outer body wall with vines ^{p y} or ^d OVK. lo ^fo s b ^s m ^to the housing, and the above three roller bearings swept in closed ^beta zmMném free space only. This type of lubrication of gears and rolling bearings. that lubrication does not use oils ^é it ^No eгρa ^dl and ^has uptétněrn particular in gearboxes for driving the belt conveyor at povrc ^h aligns correctly ^d a ^b ývárn stashed belt conveyor is set- ^s with ^b ENA ^P ro ^P R ^and C in the open field at temperatures of - 30 ° C to -j-45 ° C.

Rejects ^dy cr ^s with ^b in utežení kuplového pinion and a method for lubricating a three roller bearings housed in the closed space savings ^No. IV ^{and d} to ^{k p} racnosH that ^h oto ^{MPLEMENTATION} ^ placed in ^{the yz} requires vytvotern retaining pockets oil microcapsules in the body · ^p řevodovk ^y and drilling the holes ^R u or ^yt as ^of learning ^'channels or the pit ^P ro distribution of oil to lubricate the three bearings at the outer ^{and Acc} UT) of ^{in some} j ^puppy têtes ^p Revo ^d s ^alkyl or bearing housing both in reducing the operational reliability of the bearing lubrication in ztoním period ^where Lay PFI ° ^d e c ^{h LSI} commonly occurring outages belt transport in the holes and slowly solidifies impossible after resetting the constant flow of oil to the bearings ·.

Said drawback ^{dy removes} U is a further ^{p -} written · invention bevel gear gearbox with two-piece housing consisting of bottom and · gear cover, wherein. are the flanges of the underside of the gearbox for mounting the rolling elements. the bevel pinion bearings are formed in the inner space of the bottom and the gearbox cover. In this case a bevel pinion is positioned with its roller bearings mounted in specified ^when Rubáč ^h substructure ^p Revo ^d o ^alkyl Tek ^® E is ^D is not a party ^of the hub utežen flange Ra ^Dial them in the ^d nom ra ^di alni Vahva last year and axiáteě in ^d Vou axial judgment ^{C to-voltage} vahvých ^^ te Acl and its ^hole in the side ^hé ga ^{¹H p} n a ⁿ e ^p u stored in vnitřrn radial flange in radial roller bearings. This design element evodov ^{straight alkyl} with a ^{p l} e ^{C does} not su ^ ernm all rolling. The bevel pinion bearings in the interior of the gearbox allow all taper roller pinion bearings to be in direct contact with the oil bath splashes.

The advantage of the solution according to the invention, by eliminating the enclosure of the three roller bearings in the enclosed space, is the reduced production efficiency of the gearbox by removing the oil pick-up and collection pockets, oil lines and oil pipelines, reliably lubricating all the roller bearings in winter and after prolonged outages belt conveyors after it returned to operation and reduce the cost of maintenance ^{of reinforced concrete} with Revo ^{d p} o ^ky.

The actual embodiment of the invention shown in the drawing, where Fig. 1 is a front sectional view illustrated the overall arrangement of the transmission. Figure 2 then shows the ^Pooh Dor ^{Y BC} evodov ^ky without SVRS ^{for instance} at EVO ^d s ^ky.

J and ^k shown in Figs. 1 and 2, the transmission 1 from the bottom 11 of the lid. 12, one in ^{the F} Knife ^eh soukoh about ² and ^d is Noho čelrnho third bevel pinion gear 21 of the bevel gear 2 is provided on one side 211 of the flange 111 of the hub 213 mounted on the first radial roller bearing 41 and axially supported in two axmlmch. spherical vahvých ložickách 42 on its second side 212 of the inner flange 112 at the input pin 214 is at ^L o ^of the en druřiém radmlrnm Vahva 43. The focus of each of the two flanges 111, 112 for rolling saved teriselí ⁴ ^^ AC pinion 21 is formed the lower half of the flange. 1111, 1121 and upper flange 1112, 1122 contrived as a detachable shackle attached by screws 5 to the lower flange halves 1111, 1121. The lower half ^while ruby lil ¹ odlha vnitírn on the intermediate wall 113 of the bottom 11, the lower half of the flange ¹¹²¹ is ^{in some} odMtza zevmte j ^š í wall ¹¹⁴ with ^p odku 11. This construction solving the substructure 11, the flanges 111, 112. When the bearings 4 of the bevel support 21 and the cover 12 are mounted, all the roller bearings 4 become part of the interior of the gearbox 13 and can be lubricated by the oil of the bevel gear 22 and the spur. The oil in the interior of the transmission 13 fills the upper cavity 1113 cast in the upper half of the flange 1112, from which the oil flows through the opening 1114 between the spherical roller bearings 42.

The nature of the invention cannot be affected if the bearing groups 4 of the conical pinion 21 are assembled in a different number of flanges 111, 112 than those shown in FIGS. 1 and 2, provided that all the rolling bearings 4 irrespective of how many of them have been used to accommodate the conical pinion 21 in the bottom 11, as part of the interior of the gearbox 13.

Claims (2)

SUBJECT OF THE INVENTION A bevel gear and a helical gearbox having horizontal shafts mounted in a two-piece gear housing divided by a shaft axis and comprising a bottom and a cover, characterized in that the flanges (111, 112) of the bottom (11) for receiving the roller bearings (4) of the bevel pinion (21) of the bevel gear (2) are formed in the inner space (13) of the bottom (11) and the cover (12) of the gearbox housing. Gearbox according to Claim 1, characterized in that the bevel pinion (21) is mounted on its one side (211) at the hub (213) in the flange (111) of the bottom (11) radially in the radial roller bearing (41) and axially in two spherical spherical roller bearings (42) and on the other side (212) of the inlet pin (214) are mounted in the inner flange (112) of the bottom (11) radially in the radial roller bearing (43).