CN209430711U

CN209430711U - Drive axle reducer

Info

Publication number: CN209430711U
Application number: CN201821934552.XU
Authority: CN
Inventors: 吴志强; 郑明�
Original assignee: Guangdong Fuwa Heavy Industry Co Ltd
Current assignee: Guangdong Fuwa Heavy Industry Co Ltd
Priority date: 2018-11-23
Filing date: 2018-11-23
Publication date: 2019-09-24
Anticipated expiration: 2028-11-23

Abstract

Drive axle reducer, including shell, it wears and connects in the intracorporal input shaft of shell, in shell and it is set in the input end gear on input shaft, positioned at the intracorporal differential mechanism of shell, what input shaft protruded above is provided with a shaft shoulder, the shaft shoulder and differential mechanism are located at the two sides of input end gear, input end gear is provided with the double wedge engaged with the bevel gear on differential mechanism close to the side of differential mechanism, a thrust bearing is provided between the shaft shoulder and input end gear, a lubricant reservoir for being filled with lubricating oil is provided in shell, the Oil Guide channel for the lubricating oil in lubricant reservoir to be imported to thrust bearing is provided on the shaft shoulder.Thrust bearing is arranged in the utility model between the shaft shoulder and input end gear, reduce the friction between the shaft shoulder and input end gear, simultaneously, script guides to thrust bearing the lubricating oil that bearing of input shaft is lubricated, while further decreasing friction, the smoothness of input end gear and input shaft relative rotation is kept.

Description

Drive axle reducer

Technical field

A kind of the utility model technical field of automobile accessories, and in particular to drive axle reducer.

Background technique

Currently, input shaft, input end gear and differential mechanism, input shaft is usually arranged in the input terminal of the retarder of drive axle End tooth wheel is set on input shaft, in order to limit the axial displacement of input end gear, is arranged one on input shaft and is located at input terminal The shaft shoulder of gear side, the other side of input end gear is set to the double wedge of the engagement of the bevel gear on differential mechanism, due to differential mechanism At work, leading to input end gear and input shaft, there are relative motions, therefore, the shaft shoulder of input end gear and input shaft it Between be provided with gasket, to avoid the two contact；However, in actual use, gasket can be in the structure of existing setting gasket Input end gear and shaft shoulder time generate certain frictional resistance, lead to energy loss.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model is intended to provide a kind of drive axle reducer, can The frictional resistance between input end gear and input shaft is reduced, energy loss is reduced.

To achieve the above objectives, the present invention adopts the following technical solutions:

Drive axle reducer, including shell, wear and connect in the intracorporal input shaft of shell, in shell and be set on input shaft Input end gear, be located at the intracorporal differential mechanism of shell, what input shaft protruded above the be provided with shaft shoulder, the shaft shoulder and differential mechanism distinguish position In the two sides of input end gear, input end gear be provided with close to the side of differential mechanism engaged with the bevel gear on differential mechanism it is convex Tooth is provided with a thrust bearing between the shaft shoulder and input end gear, a lubricant reservoir for being filled with lubricating oil is provided in shell, The Oil Guide channel for the lubricating oil in lubricant reservoir to be imported to thrust bearing is provided on the shaft shoulder.

The both ends of input shaft pass through first bearing respectively and second bearing is articulated in the both ends of shell, and lubricant reservoir is by shell Body, the shaft shoulder, input shaft and first bearing surround.

Oil Guide channel is the through-hole that another side is extended to by the one side of the shaft shoulder.

Multiple through-holes, central axis circumference array of multiple through-hole around input shaft are provided on the shaft shoulder.

The shaft shoulder is provided with a groove on the one side of input end gear, and thrust bearing includes the guarantor in groove Hold frame and multiple rollers in retainer.

The utility model has the beneficial effects that:

Thrust bearing is arranged in the utility model between the shaft shoulder and input end gear, reduce the shaft shoulder and input end gear it Between friction, meanwhile, script guides to thrust bearing the lubricating oil that bearing of input shaft is lubricated, rubs further decreasing While wiping, the smoothness of input end gear and input shaft relative rotation is kept.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the enlarged view in Fig. 1 at B；

Fig. 3 is the cooperation schematic diagram of the utility model input shaft and input end gear.

Specific embodiment

In the following, being further described in conjunction with the drawings and specific embodiments to the utility model:

It as shown in Figure 1, 2, 3, is a kind of drive axle reducer of the utility model comprising shell 10, input shaft 20, defeated Enter end tooth wheel 30, differential mechanism 40, input shaft 20, input end gear 30 and differential mechanism 40 are respectively positioned on inside shell 10, input shaft 20 cross the both ends of shell 10, can be at the both ends with shell 10 and are matched respectively by first bearing 11, the pivot of second bearing 12 It closes, input end gear 40 is set on input shaft 20, the fit system and prior art phase of differential mechanism 40 and input end gear 30 Together, double wedge of the bevel gear thereon with input end gear 30 close to 40 side of differential mechanism engages；It is also radial on input end gear 30 Outwardly protrude to form a shaft shoulder 21, the shaft shoulder 21 and differential mechanism 40 are separately positioned on the two sides of input end gear 30；The shaft shoulder 21 with It is clamped with a thrust bearing 50 between input end gear 30, a lubricant reservoir A is formed in shell 10, is filled out in lubricant reservoir A The lubricating oil filled can be lubricated first bearing 11, meanwhile, Oil Guide channel is provided on the shaft shoulder 21, which can Lubricating oil in lubricant reservoir A is inducted into thrust bearing 50, i.e. lubricating oil in lubricant reservoir A can not only be to first bearing 11 play the role of lubrication, while can also lubricate thrust bearing 50.

Compared with the prior art, thrust bearing 50 is arranged in the utility model between the shaft shoulder 21 and input end gear 30, subtracts Small friction between the shaft shoulder 21 and input end gear 30, meanwhile, script draws the lubricating oil that bearing of input shaft is lubricated It is directed at thrust bearing 50, while further decreasing friction, keeps input end gear 30 to relatively rotate with input shaft 20 suitable Smooth property.

In a preferred embodiment, above-mentioned lubricant reservoir A is by shell 10, the shaft shoulder 21, input shaft 20 and first bearing 11 surround；Oil Guide channel is then preferably located at the through-hole 211 on the shaft shoulder 21, and the through-hole 211 is by the shaft shoulder 21 close to lubrication The one side of oil pocket A extends to the one side cooperated with thrust bearing 50；In order to enable lubricating oil to be uniformly imported into thrust In the gap of bearing 50, it can be and multiple through-holes 211 are set on the shaft shoulder 21, and multiple through-hole 211 is around input shaft 20 The arrangement of central axis circumference array.

The above-mentioned thrust bearing 50 of the utility model includes retainer 51 and multiple rollers 52, in order to guarantee thrust bearing 50 stability offers a groove 212 in the shaft shoulder 21 on the one side of input end gear 30, and retainer 51 is embedded in should In groove 212, multiple rollers 52 are in retainer 51.Certainly, the thrust bearing 50 of the utility model is not limited in adopting With above-mentioned roller bearing, ball bearing can also be, the preferred bearing for selecting rolling friction.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that, it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features, and these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims

1. drive axle reducer, including shell, wears and connect in the intracorporal input shaft of shell, in shell and be set on input shaft Input end gear is located at the intracorporal differential mechanism of shell, and what input shaft protruded above is provided with a shaft shoulder, and the shaft shoulder and differential mechanism are located at The two sides of input end gear, input end gear be provided with close to the side of differential mechanism engaged with the bevel gear on differential mechanism it is convex Tooth, which is characterized in that be provided with a thrust bearing between the shaft shoulder and input end gear, one is provided in shell filled with lubricating oil Lubricant reservoir, the Oil Guide channel for the lubricating oil in lubricant reservoir to be imported to thrust bearing is provided on the shaft shoulder.

2. drive axle reducer as described in claim 1, which is characterized in that the both ends of input shaft pass through respectively first bearing and Second bearing is articulated in the both ends of shell, and lubricant reservoir is surrounded by shell, the shaft shoulder, input shaft and first bearing.

3. drive axle reducer as claimed in claim 2, which is characterized in that Oil Guide channel is to be extended to by the one side of the shaft shoulder The through-hole of another side.

4. drive axle reducer as claimed in claim 3, which is characterized in that multiple through-holes are provided on the shaft shoulder, it is multiple logical Central axis circumference array of the hole around input shaft.

5. drive axle reducer as described in claim 1, which is characterized in that the shaft shoulder is set on the one side of input end gear It is equipped with a groove, thrust bearing includes retainer and multiple rollers in retainer in groove.