Transmission and method for producing a transmission having a housing

Patent metadata

Field	Value
Publication number	US-11767906-B2
Application number	US-202217687980-A
Country	US
Kind code	B2
Filing date	Mar 7, 2022
Priority date	Jul 6, 2017
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A transmission includes a housing, having lower and upper housing parts and bearing seats. A web is formed on the lower housing part between two bearing seats, which is pressed against a web provided on the upper housing part and between the bearing seats. When the housing parts are separated or pulled apart, a first web of one of the housing parts projects beyond a planar surface, which restricts the other webs thereof, or the webs of one of the housing parts are restricted by a planar separating surface, and except for a first web, the webs of the other housing part are also restricted by the planar separating surface and the first web projects beyond the separating surface when the housing parts are separated from each other. To form the housing, at least one of the housing parts is elastically deformed and/or preloaded.

First claim

What is claimed is:

1. A transmission, comprising:
a housing including a first housing part and a second housing part;
wherein the first housing part includes a planar surface, a plurality of first bearing seat portions arranged along the planar surface, and first webs arranged between each adjacent pair of first bearing seat portions;
wherein the second housing part including a mating surface to the planar surface, a plurality of second bearing seat portions arranged along the mating surface, and second webs arranged between each adjacent pair of second bearing seat portions, the mating surface having a first portion located along a plane and a second portion, corresponding to at least one of the second webs, extending beyond the plane of the first portion in an unassembled state of the housing, the second portion being elastically deformable, so that in an assembled state of the housing, the second portion is elastically deformed to align with the plane, the first housing part and the second housing part being joined at the planar surface of the first housing part and the mating surface of the second housing part along the plane.

2. The transmission according to claim 1 , wherein the first bearing seat portions and the second bearing seat portions form bearing seats in the assembled state of the housing.

3. The transmission according to claim 1 , wherein the second portion corresponds to a single one of the second webs.

4. The transmission according to claim 1 , wherein the housing consists of the first housing part and the second housing part.

5. The transmission according to claim 1 , wherein the at least one of the second webs is arranged between a bearing seat for a bearing of an input shaft and a bearing seat for a bearing of an intermediate shaft.

6. The transmission according to claim 1 , wherein, with the exception of the at least one of the second webs and a first web contacting the at least one of the second webs, all first webs and second webs include a recess adapted to accommodate a pin.

7. The transmission according to claim 2 , wherein the bearing seats are arranged as bearing bores.

8. The transmission according to claim 7 , wherein bore axes of the bearing bores are aligned parallel to each other.

9. The transmission according to claim 7 , wherein bore axes of the bearing bores are arranged in a plane.

10. The transmission according to claim 1 , wherein no recess for accommodating a pin and/or a screw or a plurality of screws is provided in the at least one of the second webs.

11. The transmission according to claim 1 , wherein all of the first webs and the second webs, except the at least one of the second webs and a corresponding at least one of the first webs of the first housing part contacting the at least one of the second webs, include a recess adapted to accommodate a pin and at least one recess adapted to accommodate a screw.

12. The transmission according to claim 1 , wherein the recesses are arranged as bores having bore axes aligned in a normal direction to the planar surface.

13. The transmission according to claim 1 , wherein the at least one of the second webs is narrower than all other second webs.

14. The transmission according to claim 1 , wherein a first one of the first housing part and the second housing part is arranged as an upper housing part and a second one of the first housing part and the second housing part is arranged as a lower housing part.

15. The transmission according to claim 1 , wherein a bonding agent and/or sealant is arranged between the first housing part and the second housing part along the planar surface and the mating surface in the assembled state of the housing.

16. The transmission according to claim 1 , wherein a bonding agent and/or sealant is arranged between the first webs and the second webs along the planar surface and the mating surface in the assembled state of the housing.

17. The transmission according to claim 2 , further comprising a bearing arranged in each bearing seat.

18. The transmission according to claim 2 , wherein at least one bearing seat is machined in the housing in the assembled state of the housing.

19. The transmission according to claim 1 , wherein the first housing part and the second housing part are screw-connected to each other in the assembled state of the housing.

20. The transmission according to claim 1 , further comprising at least one shaft and at least one toothed wheel arranged in an interior of the housing.

Assignees

• Sew Eurodrive Gmbh & Co Kg

Inventors

• Lamaj Ermalt
• Müller Mathias
• Eller Peter
• Schwan Tobias

Classifications

• F16H57/021 Primary

  Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings · CPC title

• B21D53/88

  other parts for vehicles, e.g. cowlings, mudguards · CPC title

• F16H2057/02008

  characterised by specific dividing lines or planes of the gear case · CPC title

• F16H2057/02017

  characterised by special features related to the manufacturing of the gear case, e.g. special adaptations for casting · CPC title

• F16H57/02 Primary

  Gearboxes; Mounting gearing therein · CPC title