CS243302B1 - Transmission Shaft Bearing Bearing Bracket - Google Patents

Abstract

The solution concerns a mechanical multi-stage transmission with a divider in the front part, in which a transversely divided transmission chamber is used. The essence of the solution is that in the bearing holder of the intermediate shaft, screwed to one part of the transmission chamber, one or more sliding bearings are formed for sliding support of the gearshift rods and one or two rolling bearings of the countershaft are also mounted therein.

Description

BACKGROUND OF THE INVENTION The present invention relates to a mechanical multi-stage gearbox with a divider in the front part, a transversely divided transmission chamber.

Mechanical gearboxes with a divider in the front, whose gearing range is large, require that the rear permanent transmission drive wheel be rotatably mounted in a bearing housed in a chamber or part that is rigidly connected to the chamber. The known solutions use an intermediate spacer in which the bearings of the intermediate and countershaft are mounted. This solution is complicated, having two sealing surfaces which must be precisely machined.

The above disadvantages are overcome by the intermediate shaft bearing holder according to the invention, which is characterized in that one or more sliding bearings are provided for the sliding bearing of the shifting rods and one or two roller bearings of the countershaft are also accommodated.

By using the intermediate shaft bearing bracket according to the invention, a spacer with two sealing surfaces need not be inserted between the front and rear parts of the gearbox chamber. The intermediate shaft bearing holder is plate-shaped and is bolted to one of the transmission chamber components, in their transverse dividing plane or in a plane parallel thereto. Shift rod bearings are also formed in the intermediate shaft bearing bracket.

In the drawings, FIG. 1 is a partial cross-sectional view of a gearbox with an intermediate shaft bearing holder according to the invention. Fig. 2 shows the intermediate shaft bearing holder in cross-section with the countershaft intermediate bearing.

The transmission chamber 2 is divided transversely by the dividing plane 6 into the rear part 5 and the front part 6 of the transmission chamber 2. The bearing bracket 1 of the intermediate shaft 11 is screwed to the bearing surface 3 of the front part of the gearbox chamber 2.

This bearing surface 2 can also be formed on the rear part 5 of the gearbox chamber 2 and can be identical to or parallel to the dividing plane 6. One or more sliding bearings T are provided in the bearing bracket 1 of the intermediate shaft 11 for sliding mounting of the shift rods 8.

If the long countershaft 10 is to be mounted in another roller bearing, this embodiment is shown in FIG. 2. The bearing holder 11 of the intermediate shaft 11 has sliding bearings T for sliding mounting of the shifting rods 8 and also accommodates one or two roller bearings 2 of the output shaft 10.

Claims (2)

OBJECT OF THE INVENTION 1. A mechanical transmission intermediate shaft bearing bracket having a transversely divided chamber and equipped with a divider formed by another permanent gear assembly which is mounted inside the transmission chamber and bolted to its bearing surface formed on the front chamber section or the rear chamber section. wherein the bearing surface can be identical to the compartmental plane of the chamber, characterized in that at least one bearing (7) is provided therein for slidingly accommodating the shift rods (8). Intermediate shaft bearing holder according to claim 1, characterized in that one or two roller bearings (9) of the countershaft (10) are also housed therein.