CN220015979U - Differential mechanism installation connection structure and engineering machinery - Google Patents

Abstract

The utility model discloses a differential mechanism mounting and connecting structure and engineering machinery, which comprises a differential shell, a differential shell cover, an assembled cross shaft, a bevel gear and a pair of half gears, wherein the differential shell cover is arranged on the cross shaft; the differential shell and the differential shell cover are connected together through a fastener; the assembled cross shaft is arranged in the differential shell; a bevel gear is arranged at each of the four end parts of the cross shaft; a pair of side gears are mounted on the differential housing and the differential housing cover, respectively, the side gears being engaged with the bevel gears. The cross shaft formed by the two short shafts and the cross shaft sleeve can transmit larger torque, the service life of the shaft and the bearing capacity of the shaft are improved, compared with the traditional cross shaft, the cross shaft formed by the structure has the advantages that the cost is greatly reduced, the processing technology is simpler, and the purpose of simple and convenient low-cost installation is achieved.

Description

Differential mechanism installation connection structure and engineering machinery

Technical Field

The utility model particularly relates to a differential mechanism mounting and connecting structure, and belongs to the field of differential mechanisms.

Background

When the vehicle is in a straight running state, the bevel gear and the side gear cannot move relatively and keep stationary. When the angular speeds of the two driving wheels of the vehicle are mutually different, the two wheels have rotation speed difference, and at the moment, the bevel gear revolves around the axis of the half-shaft gear and rotates around the axis of the bevel gear, so that the resistance difference can be absorbed, the power distribution is realized, the wheels are ensured to realize pure rolling, the vehicle is prevented from sideslip, and the vehicle is in a safe driving state at all times. Generally, in engineering machinery, a bevel gear is supported by a cross shaft, the traditional cross shaft is complex in manufacturing process, high in processing cost and difficult to install, and the conventional cross shaft is difficult to replace after being worn. The floating bevel gear train can not transmit larger moment to bear larger load although eliminating the cross axle support, so a new differential mechanism installation connection structure is needed to be designed.

Disclosure of Invention

The utility model aims to provide a differential mechanism mounting and connecting structure which is simple in manufacturing and processing, low in cost, convenient to install and capable of transmitting large moment and heavy load.

The utility model is realized according to the following technical scheme:

in a first aspect, the present utility model discloses a differential mounting connection structure, comprising:

the differential shell and the differential shell cover are connected together through a fastener;

a cross shaft assembled in the differential shell;

bevel gears, one of which is respectively arranged at the four ends of the cross shaft;

and a pair of side gears respectively arranged on the differential shell and the differential shell cover, wherein the side gears are meshed with the bevel gears.

In some embodiments, the cross is formed by assembling a straight shaft, two short shafts and a cross shaft sleeve.

In some embodiments, the straight axle extends through a cross axle sleeve, and the two stub axles are mounted on the cross axle sleeve in a manner that is perpendicular to the straight axle.

In some embodiments, the straight shaft penetrates through the radial peripheral surface of the cross shaft sleeve; the two short shafts are respectively arranged on two shaft surfaces of the cross shaft sleeve.

In some embodiments, the straight shaft and the two stub shafts are provided as planes on the radial circumferential surface of the assembled bevel gear.

In some embodiments, an anti-rotation feature is also included for securing the cross-shaft in the differential housing.

In some embodiments, the anti-rotation component is a pin; the end parts of the straight shaft and the two short shafts are respectively provided with a pin hole, the side wall of the differential shell corresponding to the pin holes is provided with a blind hole, and the pin shafts are inserted into the pin holes and the blind holes to fix the cross shaft.

In some embodiments, the difference housing and the difference housing cover are connected by bolts.

In a second aspect, the present utility model discloses an engineering machine, in which the differential mounting connection structure described above is mounted.

The utility model has the beneficial effects that:

in the differential mechanism installation process, the machining and installation cost is reduced by assembling the cross shaft; the bevel gear and the half shaft gear are meshed in the working process of the differential mechanism, and are affected by unbalanced circumferential stress of the bevel gear shaft at the moment, the horizontal shaft, the short shaft and the central line of the differential mechanism are not completely overlapped, so that the shaft system is scratched or glued due to uneven gaps of the shaft holes.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.

In the drawings:

FIG. 1 is an overall installation view of a differential mounting connection structure of the present utility model;

FIG. 2 is a partial cross-sectional view of the differential mounting connection of the present utility model;

FIG. 3 is a diagram of a combination of a straight shaft, a short shaft and a cross shaft sleeve according to the present utility model;

FIG. 4 is a schematic diagram of a spool in accordance with the present utility model;

fig. 5 is a short axis schematic of the present utility model.

In the figure: 1. the differential shell comprises a differential shell cover 2, a differential shell cover 3, a half shaft gear 4, a bevel gear 5, a straight shaft 6, a pin shaft 7, a cross shaft sleeve 8 and a short shaft.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, a differential mounting and connecting structure comprises a differential housing 1, a differential housing cover 2, an assembled cross shaft, a bevel gear 4 and a pair of side gears 3; the differential shell 1 and the differential shell cover 2 are connected together through a fastener; the assembled cross shaft is arranged in the differential shell 1; bevel gears 4 are respectively arranged at the four end parts of the cross shaft; a pair of side gears 3 are mounted on the differential case 1 and the differential case cover 2, respectively, and the side gears 3 are engaged with the bevel gears 4.

A preferred embodiment of the above embodiment with respect to the cross is given below:

as shown in fig. 3, 4 and 5, the cross shaft is formed by assembling a straight shaft 5, two short shafts 8 and a cross shaft sleeve 7. The cross shaft formed by the straight shaft 5, the two short shafts 8 and the cross shaft sleeve 7 can transmit larger torque, the service life of the shaft and the bearing capacity of the shaft are improved, compared with the traditional cross shaft, the cost of the cross shaft formed by the structure is greatly reduced, the processing technology is simpler, and the purpose of simple and convenient low-cost installation is achieved.

The preferable scheme is as follows: the straight shaft 5 penetrates through the cross shaft sleeve 7, and two short shafts 8 are mounted on the cross shaft sleeve 7 in a mode of being perpendicular to the straight shaft 5.

The preferable scheme is as follows: the straight shaft 5 penetrates through the radial peripheral surface of the cross shaft sleeve 7; the two stub shafts 8 are mounted on the two axial faces of the cross bushing 7, respectively.

The further scheme is as follows: the horizontal shaft 5 and the two short shafts 8 are provided as flat surfaces on the radial circumferential surface of the assembled bevel gear 4.

The further scheme is as follows: an anti-rotation member is also included for securing the cross in the differential housing 1. The addition of the anti-rotation component can prevent the bevel gear 4 from driving the shafting to rotate together in the rotation process, and also ensure that the bevel gear 4 is meshed with the half-shaft gear 3 to better transmit the moment.

The preferable scheme is as follows: the anti-rotation component is a pin shaft 6; the ends of the horizontal shaft 5 and the two short shafts 8 are respectively provided with a pin hole, the side wall of the differential shell 1 corresponding to the pin holes is provided with a blind hole, and the pin shaft 6 is inserted into the pin holes and the blind holes to fix the cross shaft.

The preferable scheme is as follows: the differential case 1 and the differential case cover 2 are connected by bolts.

Therefore, the cross shaft formed by the straight shaft, the two short shafts and the cross shaft sleeve reduces the installation difficulty and the processing cost, reduces the friction and abrasion between the shaft system and the differential shell through the anti-rotation pin between the shaft and the shell, and prolongs the service life and the bearing capacity of the shaft.

The utility model also discloses engineering machinery provided with the differential mechanism mounting and connecting structure.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments, but not others, combinations of features of different embodiments are equally meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present utility model.

The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.

Claims (3)

1. A differential mounting connection structure, comprising:

the differential shell and the differential shell cover are connected together through a fastener;

a cross shaft assembled in the differential shell;

bevel gears, one of which is respectively arranged at the four ends of the cross shaft;

a pair of side gears respectively mounted on the differential housing and the differential housing cover, the side gears being engaged with the bevel gears;

an anti-rotation member for securing the cross in the differential housing;

the cross shaft is formed by assembling a straight shaft, two short shafts and a cross shaft sleeve;

the two short shafts are arranged on the cross shaft sleeve in a manner of being perpendicular to the straight shaft;

the straight shaft penetrates through the radial peripheral surface of the cross shaft sleeve;

the two short shafts are respectively arranged on two shaft surfaces of the cross shaft sleeve;

the horizontal shaft and the two short shafts are arranged to be planes on the radial circumferential surface of the assembled bevel gear;

the anti-rotation component is a pin shaft; the end parts of the straight shaft and the two short shafts are respectively provided with a pin hole, the side wall of the differential shell corresponding to the pin holes is provided with a blind hole, and the pin shafts are inserted into the pin holes and the blind holes to fix the cross shaft.

2. The differential mounting connection structure of claim 1, wherein:

the differential shell is connected with the differential shell cover through bolts.

3. An engineering machine, characterized in that:

a differential mounting connection structure as defined in claim 1 or 2 is mounted.