DD290556A7 - GEARBOX HOUSING FOR MULTI-STAGE GEARBOXES IN THE CONSTRUCTION BOX SYSTEM - Google Patents

Abstract

The invention relates to a Getriebegehaeuse with inner Gehaeusegestaltung multi-stage gearbox in the modular system of a series, wherein the housing has an arrangement of the distances of the bearings to the center line of the constant aeuszeren Gehaeusebreite such that an asymmetric inner contour arises, resulting from the bearing point spacing of the central bearing bores of the partially contained two-stage gear yields. Fig. 1, 2 {Getriebegehaeuse; Gehaeusebreite; Bearings; asymmetrical inner contour; Bearings distance; middle bearing bores; Wheelbase; wheel widths; Waves}

Description

Field of application of the invention

The invention relates to the internal housing design of multi-stage gearboxes in the modular system of a series. The object of the invention are housings of minimum width, low mass and the manufacture of a series of transmissions with a minimum range of parts for both multi-stage helical and bevel gear and spur gear.

Characteristic of the known technical solutions

On the one hand, development in gearbox construction leads to special gearboxes and, on the other hand, to series of gearboxes that are offered in catalogs or standards.

In the production of series transmissions such premises are generally recognizable, such as a simple design of the gear housing for cheap processing, for example, the faces of the bearings inside and outside, feasibility of various Wellenanordnunpen and minimal component assortment with respect to housing segments and wheels and shafts. As can be seen from the specialist literature, Prospukten diverse companies and the patent DE-OS1932624, this is realized by the following conventional possibilities:

- Symmetrically constant design of the housing width with the disadvantage of large spans the shaft bearings in the housing, d. H. Power limitation of the gears due to the deflection of the shafts

- Housing design symmetrical with decreasing inside housing width with the disadvantage of the still large span in the high-speed waves

- Housing width design according to optimal criteria of the shaft deflection realized by the fact that the housing is divided several times and thus is little in the production.

In the case of the existing state of the art of existing transmissions, solutions without at least one of the disadvantages mentioned are not known.

Object of the invention

The aim of the invention is a housing form for a multi-stage transmission series according to the modular principle, the

- Gearbox low mass and high transferable torques result

- Realized transmission with a minimum range of parts

- Have a symmetrical Außenkoöntur and dia shaft arrangement 0 and 1 allow

- Requires a minimum of processing.

Explanation of the essence of the invention

The object of the invention is to make multi-stage gearbox housing in a modular system so that many variations can be made without changes to the modular system of the transmission components with little parts. According to the invention the object is achieved in that the housing has an arrangement of the distances of the bearings to the center line of the constant outer housing width so that an asymmetric inner contour arises, resulting from the Lagerstelieriabstand the middle bearing holes of the partially contained 2-stage transmission, the constant for a Axle distance size maintained and when returning in oem other multi-stage gearbox is arranged asymmetrically to the center line of the housing with minimal outer width.

For each center distance, this results in a constant bifrößenunabhangiger bearing clearance. The outer housing width is determined by the marginal widths of the low-speed shaft and the intermediate shaft in front and don required widths of the camp. The balance between the asymmetrical design of the interior and the symmetrical outer contour of the housing in the implementation of the shaft assemblies 0 and 1 is achieved by other layers or other forms of fast and slow running waves.

The inventive solution has the advantages that

- By the found housing inner contour a minimum Gehäueebrelte, a low gear mass and a high transmissible torque is achieved

- Due to the same bearing distances based on the respective center distance, a minimal range of parts for the series is possible

- By the symmetrical outer contour, by the number of housing parts to complete a transmission, the size of the housing and the minimum bearing distances a lower processing cost is achieved.

embodiment

The invention will be explained in more detail using an exemplary embodiment.

Fig. 1: View of the part plane of a 3-stage spur gear shaft assembly Fig. 2: View of the part plane of a 3-stage spur gear - shaft assembly

The adaptation of the interior of the housing to the tooth widths b 1, b 2 and b 3 of the respective stages is effected by the contours K1 and K2.

The length of the intermediate shafts results from the distances of the rolling bearings L1 and L2 as well as L3 and L4.

Claims (1)

Gear housing for multi-stage gearboxes in the modular system with horizontal and / or vertical shaft arrangement with symmetrical outer contours, with the same connection dimensions of the shaft assembly 0 and 1 and constant outer housing width, characterized in that the housing has an arrangement of the distances of the bearings to the center line of the constant outer housing width, that an asymmetric inner contour results, which results from the bearing clearance of the middle Laßerbohrungen the partially contained 2-speed gearbox, which is maintained constant for a Achsabstandsgrcße and arranged on return in another multi-stage gearbox asymmetrical to the center line of the housing with minimum outer width. For this 1 page drawings