CN201739472U

CN201739472U - Planetary gear box output structure

Info

Publication number: CN201739472U
Application number: CN2010202495716U
Authority: CN
Inventors: 逄永梅
Original assignee: SHANGHAI JIANHAO GEARING MACHINERY CO Ltd
Current assignee: SHANGHAI JIANHAO GEARING MACHINERY CO Ltd
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2011-02-09
Anticipated expiration: 2020-07-06

Abstract

The utility model discloses a planetary gear box output structure, which comprises a first bearing, a second bearing, a skeleton oil seal, a cover plate, an output shaft, a retaining ring for a shaft, an O-shaped seal ring and a bearing support; the inner ring of the first bearing is sleeved on the outer ring of the output shaft; the outer ring of the first bearing is mounted in a hole of the bearing support; the inner ring of the second bearing is sleeved on the outer ring of the output shaft; the outer ring of the second bearing is mounted in another hole of the bearing support; the inner hole of the skeleton oil seal is sleeved on the outer ring of the output shaft; the inner hole of the cover plate is sleeved on the outer ring of the second bearing; the output shaft is mounted in the bearing support and the cover plate; and the O-shaped seal ring is mounted in the bearing support. The utility model changes the mounting position of the skeleton oil seal, thereby optimizing the structure and reducing the maintenance cost.

Description

The epicyclic gearbox export structure

Technical field

The utility model relates to a kind of transmission device, particularly a kind of epicyclic gearbox export structure.

Background technique

Epicyclic gearbox has characteristics such as compact structure, volume and quality are little, gear range is big, driving torque is big, is widely used a kind of transmission device in the engineering machinery.The epicyclic gearbox export structure directly influences assembly process process, influences quality of product and ordinary production.

When the output shaft of existing planetary pinion box structure is packed bearing support into, be through two bearings, because its cylindrical and brearing bore are interference, assembly process process is poor.Outside framework oil seal is packed into behind the axle bed, as the need maintenance, needs to destroy outside framework oil seal, and the product maintenance cost increases, and maintenance is poor.

The model utility content

Technical problem to be solved in the utility model provides a kind of epicyclic gearbox export structure, and it changes outside framework oil seal mounting point, optimizes structure and reduces maintenance cost thereby reach.

For solveing the technical problem, the utility model provides a kind of epicyclic gearbox export structure, it is characterized in that, it comprises clutch shaft bearing, second bearing, outside framework oil seal, cover plate, output shaft, shaft block ring, O-ring seals and bearing support, the inner ring of clutch shaft bearing is enclosed within on the cylindrical of output shaft, the outer ring of clutch shaft bearing is contained in the hole of bearing support, the inner ring of second bearing is enclosed within on the cylindrical of output shaft, the outer ring of second bearing is contained in the hole of bearing support, the endoporus of outside framework oil seal is placed on the cylindrical of output shaft, the endoporus of cover plate is placed on the cylindrical of second bearing, and output shaft is loaded in bearing support and the cover plate, and O-ring seals is loaded in the bearing support.

Positive progressive effect of the present utility model is: the utility model epicyclic gearbox export structure is by structure optimization, change part assembly sequency, change the outside framework oil seal mounting point, optimize structure thereby reach, optimize assembly technology and maintenance, thereby the easier control of quality of product reduces maintenance cost.

Description of drawings

Fig. 1 is the structural representation of the utility model epicyclic gearbox export structure.

Embodiment

Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.

As shown in Figure 1, the utility model epicyclic gearbox export structure comprises clutch shaft bearing 1, second bearing 2, outside framework oil seal 3, cover plate 4, output shaft 5, shaft block ring 6, O-ring seals 7 and bearing support 8.The inner ring of clutch shaft bearing 1 is enclosed within on the cylindrical of output shaft 5, and the outer ring of clutch shaft bearing 1 is contained in the hole of bearing support 8, is used for output shaft 5 radial locations and bears radial load simultaneously.The inner ring of second bearing 2 is enclosed within on the cylindrical of output shaft 5, and the outer ring of second bearing 2 is contained in the hole of bearing support 8, and second bearing 2 is used for output shaft 5 radial locations jointly and bears radial load simultaneously with clutch shaft bearing 1.The endoporus of outside framework oil seal 3 is placed on the cylindrical of output shaft 5, and lubricant oil leaks from the output shaft bottom in the prevention casing, plays seal action.The endoporus of cover plate 4 is placed on the cylindrical of second bearing 2, links to each other with bearing support 8 with clamping bolt.Output shaft 5 is loaded in bearing support 8 and the cover plate 4, is the power output element of this epicyclic gearbox.Shaft block ring 6 endoporus are placed in a shaft 5 annular groove outsides, and second bearing 2 is played the axially locating effect.O-ring seals 7 is loaded in the bearing support 8, and lubricant oil leaks from the end face slit of bearing support 8 and cover plate 4 in the prevention casing, plays seal action.Bearing support 8 connects with other housing, forms the casing of this epicyclic gearbox case jointly, for this epicyclic gearbox provides support.

The assemble sequence of the utility model export structure is: bearing support 8 usefulness bolts are connected with housing, and on the cylindrical with the inner ring embedded output shaft 5 in clutch shaft bearing 1 heating back, last plane and axle shaft step surface are by flat.Clutch shaft bearing 1 is packed into output shaft 5 assembly bodies in the bearing support 8, the endoporus radial location of the outer ring of clutch shaft bearing 1 and bearing support 8, and the interior step surface of bearing lower plane and bearing support 8 is by flat axially locating.Packed in the annular groove of bearing support 8 with instrument with back-up ring in the hole, subsequently second bearing 2 is packed into, inner ring is placed on the cylindrical of output shaft 5, pack in the endoporus of bearing support 8 in the outer ring, last plane and output shaft 5 planes are by flat, axially the locating with shaft block ring of second bearing 2, output shaft 5 axially leans on the plane positioning of second bearing 2, second bearing 2 and output shaft 5 are packed into behind the tram, shaft block ring 6 are packed in output shaft 5 annular groove outsides, to exporting defeated axially locating.Outside framework oil seal 3 is packed in the cover plate step hole, and end face and cover plate step surface are by flat, and lip seals box house up.O-ring seals 7 is packed in bearing support 8 step holes, and with cover plate 4 that outside framework oil seal 3 is housed and bearing support 8 usefulness Bolt Connection together, step hole cooperates radial location with second bearing, 2 cylindricals, and flat axially locating is leaned on end face and bearing support 8 planes.

The utility model is different from the prior art part, changed the structure of export structure, changed the precedence of two bearing assemblings, when packing output shaft 5 into, only needing earlier inner ring with clutch shaft bearing 1 to be placed on the cylindrical of output shaft 5 gets final product, second bearing 2 is not adorned earlier, has reduced the assembling resistance like this, and assembly process process is good.The utility model has changed the mounting point of outside framework oil seal, having increased cover plate 4 packs outside framework oil seal in the cover plate 4 into, cover plate 4 is two independently parts with bearing support 8, when maintenance need be torn output shaft 5 open, the cover plate 4 that only needs to be equipped with outside framework oil seal 3 is taken outside framework oil seal apart and need do not destroyed, thereby strengthened the maintainability of product, reduced maintenance cost, the easier control of quality of product.Show that through test the utility model assembly process process is good, do not bring the too much input on the cost, reduce maintenance cost, effect is very effective, and is practical.

Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, protection domain of the present utility model is limited by appended claims.

Claims

1. epicyclic gearbox export structure, it is characterized in that, it comprises clutch shaft bearing, second bearing, outside framework oil seal, cover plate, output shaft, shaft block ring, O-ring seals and bearing support, the inner ring of clutch shaft bearing is enclosed within on the cylindrical of output shaft, the outer ring of clutch shaft bearing is contained in the hole of bearing support, the inner ring of second bearing is enclosed within on the cylindrical of output shaft, the outer ring of second bearing is contained in the hole of bearing support, the endoporus of outside framework oil seal is placed on the cylindrical of output shaft, the endoporus of cover plate is placed on the cylindrical of second bearing, output shaft is loaded in bearing support and the cover plate, and O-ring seals is loaded in the bearing support.