UNIVERSAL DRIVE HOUSING

Abstract

A transmission series has a first transmission and a second transmission. The first transmission and the second transmission each have a respective input shaft, a housing, a supporting structure fixed in the housing, and at least two bearings by means of which the input shaft is mounted rotatably in the respective supporting structure. The at least two bearings of the first transmission are of the same first design and the at least two bearings of the second transmission are of the same second design that is different from the first design. The supporting structures of the first and second transmissions are designed identically.

Claims

1. Transmission series with a first transmission (101) and a second transmission (201), wherein the first transmission (101) and the second transmission (201) each have a respective input shaft (103, 203), a housing (105, 205), a supporting structure (107, 207) fixed in the housing and at least two bearings (109a, 109b, 209a, 209b) by means of which, respectively, the input shafts (103, 203) are mounted rotatably in the supporting structure (107, 207), and wherein the at least two bearings (109a, 109b) of the first transmission (101) and the at least two bearings (209a, 209b) of the second transmission (201) are, respectively, each of identical design; characterized in that the design of the at least two bearings of the first transmission (101) differs from the design of the at least two bearings (209a, 209b) of the second transmission (201); whereas the supporting structures (107, 207) are of identical design.

2. Transmission series according to claim 1; characterized in that the input shafts (103, 203) are not of identical design.

3. Transmission series according to either of the preceding claims; characterized in that the at least two bearings (109a, 109b) of the first transmission (101) are configured in an X-arrangement and the at least two bearings (209a, 209b) of the second transmission (201) are configured in an O-arrangement.

4. Transmission series according to any of the preceding claims; characterized in that the first transmission (101) and the second transmission (201) each have a respective cover (111, 211) which is fixed in the respective supporting structure (1007, 207) and through which the respective input shaft (103, 203) extends; and the cover (111) of the first transmission (101) and the cover (211) of the second transmission (201) are of identical design.

5. Transmission series according to the preceding claim; characterized in that the cover (111) of the first transmission (101) axially supports an outer ring of a first bearing (109a) of the first transmission (101).

6. Transmission series according to any of the preceding claims; characterized in that the supporting structure (207) of the second transmission (201) is provided with a step (213) which axially supports an outer ring of a first bearing (209a) of the second transmission (201).

7. Transmission series according to any of the preceding claims; characterized in that the input shaft (103) of the first transmission (101) is provided with a step (115) which axially supports an inner ring of the first bearing (109a) of the first transmission (101).

8. Transmission series according to any of the preceding claims; characterized in that an adjusting nut (113) screwed onto the input shaft (203) of the second transmission (201) axially supports an inner ring of the first bearing (209a) of the second transmission (201).

9. Transmission series according to any of the preceding claims; characterized in that the supporting structure (107) of the first transmission (101) has a groove (117) into which a locking ring (119) is set, such that the locking ring (119) axially supports an outer ring of a second bearing (109b) of the first transmission (101).

10. Transmission series according to any of the preceding claims; characterized in that the supporting structure of the second transmission (201) is provided with a step (119, 219) which axially supports an outer ring of a second bearing (209ba) of the second transmission (201).

11. Transmission series according to any of the preceding claims; characterized in that the input shaft (103) of the first transmission (101) is provided with a step which axially supports an inner ring of the second bearing (109b) of the first transmission (101).

12. Transmission series according to any of the preceding claims; characterized in that the input shaft (203) of the second transmission (201) is provided with a step (220) which axially supports an inner ring of the second bearing (209b) of the second transmission.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0034] A preferred embodiment of the invention is shown in FIGS. 1 and 2. In detail:

[0035] FIG. 1 shows a first transmission of a transmission series; and

[0036] FIG. 2 shows a second transmission of the transmission series.

DETAILED DESCRIPTION

[0037] The first transmission 101 shown in FIG. 1 and the second transmission 201 shown in FIG. 2 belong to a common model series. The transmissions 101, 201 each have an input shaft 103, 203. A housing 105 of the first transmission 101 and a housing 205 of the second transmission 201 are of identical design. The housings 105, 205 each form an opening onto which a supporting structure 107, 207 is bolted. The supporting structure 107 of the first transmission 101 and the supporting structure 207 of the second transmission 201 are of identical design.

[0038] The input shaft 103 of the first transmission 101 is mounted rotatably in the supporting structure 107 of the first transmission 101 by means of a first ball bearing 109a and a second ball bearing 109b. Analogously, the input shaft 203 of the second transmission 201 is mounted rotatably in the supporting structure 207 of the second transmission 201 by means of a first conical roller bearing 209a and a second conical roller bearing 209b.

[0039] To the supporting structures 107, 207 a cover 111, 211 is bolted in each respective case. The respective input shafts 103, 203 extend through central openings in the covers 111, 211. The cover 111 of the first transmission 101, and likewise the cover 211 of the second transmission 201, is sealed relative to the respective input shaft 103, 203 so that no oil can escape between the said covers 111, 211 and the input shafts 103, 203.

[0040] The supporting structure 107 of the first transmission 101 and the supporting structure 207 of the second transmission 201 are in each case provided with a first step 113, 213. The first step 213 of the supporting structure 207 of the second transmission 201 forms an axial abutment for an outer ring of the first conical roller bearing 209a. The said first step 213 supports the outer ring toward the inside of the transmission.

[0041] The first step 113 of the supporting structure 107 of the first transmission 101 has no function.

[0042] The input shaft 103 of the first transmission 101 is provided with a first step 115 as an abutment for an inner ring of the first ball bearing 109a. It supports the said inner ring toward the inside of the transmission.

[0043] The cover 111 of the first transmission 101 forms an abutment for an outer ring of the first ball bearing 109a. The outer ring is supported by the cover 111 toward the inside of the transmission. Since the covers 111, 211 of the first and second transmissions 101, 201 are of identical design, the cover 211 of the second transmission 201 forms a corresponding abutment. However, this has no function.

[0044] An outer ring of the second ball bearing 109b is supported toward the inside of the transmission. For that purpose, the supporting structure 107 of the first transmission 101 is provided with a groove 117 into which a locking ring is set. This forms an abutment for the support of the outer ring of the second ball bearing 109b.

[0045] Since the respective supporting structures 107, 207 of the first and second transmissions 101, 201 are of identical design, the supporting structure 207 of the second transmission 201 has a corresponding groove 217. However, this has no function and therefore remains empty.

[0046] A second step 119 of the supporting structure 107 of the first transmission 101 forms another abutment for the outer ring of the second ball bearing 109b. In that way the outer ring of the second ball bearing 109b is supported toward the outside of the transmission. The outer ring of the second ball bearing 109b is between the locking ring set into the groove 117 and the second step 119 of the supporting structure 107 of the first transmission 101.

[0047] Since the supporting structures 107, 207 of the first transmission 101 and the second transmission 201 are of identical design, the supporting structure 207 of the second transmission 201 also has a second step 219. Analogously, this forms an abutment for an outer ring of the second conical roller bearing 209b. In that way the outer ring of the second conical roller bearing 209b is supported toward the outside of the transmission.

[0048] The input shafts 103, 203 of the transmission 101 and the second transmission 201 are in each case provided with a step 120, 220 as abutments for an inner ring of the second ball bearing 109b or the second conical roller bearing 209b respectively. A second step 120 of the input shaft 103 of the first transmission 101 serves as an abutment for an inner ring of the second ball bearing 109b and supports it toward the outside of the transmission. Analogously, a step 220 of the input shaft 203 of the second transmission 201 forms an abutment for an inner ring of the second conical roller bearing 209b. However, the inner ring of the second conical roller bearing 209b is supported by the second step 220 in the opposite direction, i.e. toward the inside of the transmission.

[0049] By virtue of the arrangement of the abutments described, the first ball bearing 109a and the second ball bearing 109b are configured in an X-arrangement. The first conical roller bearing 209a and the second conical roller bearing 209b form an arrangement in an O-configuration.

INDEXES

[0050] 101 First transmission [0051] 103 Input shaft [0052] 105 Housing [0053] 107 Supporting structure [0054] 109a First ball bearing [0055] 109b Second ball bearing [0056] 111 Cover [0057] 113 First step of the supporting structure [0058] 115 First step of the input shaft [0059] 117 Groove [0060] 119 Second step of the supporting structure [0061] 120 Second step of the input shaft [0062] 201 Second transmission [0063] 203 Input shaft [0064] 205 Housing [0065] 207 Supporting structure [0066] 209a First conical roller bearing [0067] 209b Second conical roller bearing [0068] 211 Cover [0069] 213 First step of the supporting structure [0070] 215 Adjusting nut [0071] 217 Groove [0072] 219 Second step of the supporting structure [0073] 220 Step of the input shaft