CN218953979U

CN218953979U - Motor idler wheel structure for hybrid gearbox

Info

Publication number: CN218953979U
Application number: CN202223308702.5U
Authority: CN
Inventors: 郭兵; 李亮; 亓连振; 张磊; 葛宗强; 王卫平; 翁晓明
Original assignee: Nanjing Bangqi Automatic Transmission Co ltd
Current assignee: Nanjing Bangqi Automatic Transmission Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-02
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a motor idler wheel structure for a hybrid gearbox, which comprises an idler wheel shaft, a bearing, an idler wheel and an idler wheel shaft fixing support, wherein a cylinder structure for positioning the end part of the idler wheel shaft is arranged on the idler wheel shaft through the bearing, the end part of the idler wheel shaft is positioned in the cylinder structure, and the end part of the idler wheel shaft is connected with the cylinder structure through a radial fixing structure. The motor idler gear for the hybrid gearbox is reasonable in structural design, adopts a needle bearing to support the idler gear, saves space, is compact in structure and is beneficial to shafting arrangement; and the idler shaft bracket adopts a steel plate stamping forming mode, so that the cost is reduced, the structural strength is enhanced, and the gear noise is reduced.

Description

Motor idler wheel structure for hybrid gearbox

Technical Field

The utility model relates to the technical field of hybrid gearboxes, in particular to a motor idler wheel structure for a hybrid gearbox.

Background

The idler gear assembly is applied to a DHT transmission and consists of an idler shaft, a bearing, an idler gear and an idler gear shaft fixing support, and the idler has the main effects of changing steering, increasing transmission distance, ensuring that the stress of a gear train is more reasonable and meeting the arrangement space requirement of the whole transmission system.

The prior idler gear assembly structure is shown in fig. 3; the device comprises an idler shaft, two bearings, a gear, a limiting retainer ring, an idler shaft bracket and a lubricating oil duct; the traditional idler shaft is supported by double bearings, so that the occupied arrangement space is large, the structure is complex, and the cost is high; and the idler shaft bracket is generally an aluminum casting, the strength of the bracket is insufficient, and the problem of deformation of the bracket and larger gear noise can be caused in practical application.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a motor idler wheel structure for a hybrid gearbox, so as to achieve the purposes of compact structure and relatively low cost.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the motor idler wheel structure for the hybrid gearbox comprises an idler wheel shaft, a bearing, an idler wheel and an idler wheel shaft fixing support, wherein a cylinder structure for positioning the end part of the idler wheel shaft is arranged on the idler wheel shaft fixing support, the idler wheel is arranged on the idler wheel shaft through the bearing, the end part of the idler wheel shaft is positioned in the cylinder structure, and the end part of the idler wheel shaft is connected with the cylinder structure through a radial fixing structure.

Further:

the radial fixing structure is a shaft pin, and pin holes matched with the shaft pin are formed in the end part of the idler shaft and the cylindrical structure.

And gaskets are arranged at two ends of the bearing on the idler shaft.

The bearing is a needle bearing.

The idler shaft fixing support is of a cover body structure formed by stamping.

The cylinder structure and the idler shaft fixing support are of an integrated structure.

The inner side of the idler shaft fixing support is attached to the corresponding gasket.

The cylinder structure is positioned outside the cover body.

Compared with the prior art, the utility model has the following advantages:

the motor idler gear for the hybrid gearbox is reasonable in structural design, adopts a needle bearing to support the idler gear, saves space, is compact in structure and is beneficial to shafting arrangement; and the idler shaft bracket adopts a steel plate stamping forming mode, so that the cost is reduced, the structural strength is enhanced, and the gear noise is reduced.

Drawings

The contents and the marks in the drawings expressed in the drawings of the present specification are briefly described as follows:

FIG. 1 is an exploded view of the idler of the present utility model.

FIG. 2 is a schematic diagram of an idler of the present utility model.

Fig. 3 is a schematic diagram of a conventional idler gear.

In the figure:

1. the device comprises a gasket, an idler shaft, a bearing, an idler gear, an idler shaft fixing bracket and a shaft pin.

Detailed Description

The following description of the embodiments of the present utility model refers to the accompanying drawings, which illustrate in further detail.

As shown in fig. 1 and 2, the motor idler wheel structure for the hybrid transmission comprises an idler shaft 2, a bearing 3, an idler gear 4 and an idler shaft fixing bracket 5; the idler shaft fixing support 5 is provided with a cylindrical structure for positioning the end part of the idler shaft, the idler gear is arranged on the idler shaft through a bearing, the end part of the idler shaft is positioned in the cylindrical structure, and the end part of the idler shaft is connected with the cylindrical structure through a radial fixing structure.

Preferably, the radial fixing structure is a shaft pin 6, pin holes matched with the shaft pin are arranged on the end part of the idler shaft and the cylindrical structure, and the structure is simple and compact.

The bearing 3 is a needle bearing, and gaskets 1 are arranged at two ends of the bearing on the idler shaft; and the idler gear is supported by adopting one needle bearing, so that the space is saved, the structure is compact, and the shafting arrangement is facilitated.

The idler shaft fixing bracket 5 is of a stamped cover body structure; further, the cylinder structure and the idler shaft fixing support are of an integrated structure. The idler shaft bracket adopts a steel plate stamping forming mode, and aluminum is changed into steel to replace the original casting forming structure, so that the supporting strength of the bracket is improved, the material cost is reduced, and the NVH performance is improved.

The cylinder structure is positioned at the outer side of the cover body; the inner side of the idler shaft fixing support is attached to the corresponding gasket. An antifriction gasket is added between the idler shaft fixing support and the bearing, so that excessive abrasion to the support and the shell is prevented, and strength and NVH performance are prevented from being affected.

The motor idler gear has reasonable structural design, adopts a needle bearing to support the idler gear, saves space, has compact structure and is beneficial to shafting arrangement; and the idler shaft bracket adopts a steel plate stamping forming mode, so that the cost is reduced, the structural strength is enhanced, and the gear noise is reduced.

The foregoing description is only illustrative of the preferred embodiments of the present utility model, and the above-described technical features may be arbitrarily combined to form a plurality of embodiments of the present utility model.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied to other applications without any modification, as long as the inventive concept and technical scheme are adopted.

Claims

1. The utility model provides a motor idler structure for mixing move gearbox, includes idler shaft, bearing, idler gear and idler shaft fixed bolster, its characterized in that: the idler shaft fixing support is provided with a cylindrical structure for positioning the end part of the idler shaft, the idler gear is arranged on the idler shaft through a bearing, the end part of the idler shaft is positioned in the cylindrical structure, and the end part of the idler shaft is connected with the cylindrical structure through a radial fixing structure.

2. A motor idler arrangement for a hybrid transmission as set forth in claim 1, wherein: the radial fixing structure is a shaft pin, and pin holes matched with the shaft pin are formed in the end part of the idler shaft and the cylindrical structure.

3. A motor idler arrangement for a hybrid transmission as set forth in claim 2, wherein: and gaskets are arranged at two ends of the bearing on the idler shaft.

4. A motor idler arrangement for a hybrid transmission as set forth in claim 1, wherein: the bearing is a needle bearing.

5. A motor idler arrangement for a hybrid transmission as set forth in claim 3 wherein: the idler shaft fixing support is of a cover body structure formed by stamping.

6. The motor idler configuration for a hybrid transmission of claim 5, wherein: the cylinder structure and the idler shaft fixing support are of an integrated structure.

7. The motor idler configuration for a hybrid transmission of claim 5, wherein: the inner side of the idler shaft fixing support is attached to the corresponding gasket.

8. The motor idler configuration for a hybrid transmission of claim 6, wherein: the cylinder structure is positioned outside the cover body.