CN208827487U

CN208827487U - A kind of drive axle of heavy vehicle

Info

Publication number: CN208827487U
Application number: CN201821501085.1U
Authority: CN
Inventors: 吴志强; 张波; 李春光; 刘爱萍
Original assignee: Guangdong Fuwa Heavy Industry Co Ltd
Current assignee: Guangdong Fuwa Heavy Industry Co Ltd
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2019-05-07
Anticipated expiration: 2028-09-14

Abstract

A kind of drive axle of heavy vehicle, including axle housing and reducer assemblies, reducer assemblies include reducer shell and bearing cap, bearing cap is fixedly connected with reducer shell, axle housing includes hollow linkage section, and two respectively by the outwardly extending central siphon in the both ends of linkage section, a mounting hole is provided on linkage section, and rear cover that is opposite with the mounting hole and setting, rear cover and linkage section and central siphon are integrally formed, rear cover and linkage section cohesive position are fixed with the stop part in linkage section inner cavity, bearing is placed in the inner cavity of linkage section, and multiple locating parts outwardly protruded are provided on bearing cap, stop part is surrounded on the periphery of multiple locating part, and stop part and multiple locating parts form a limit assembly for preventing reducer assemblies from swinging.The utility model limits it in the circumferential direction of reducer assemblies, prevents reducer assemblies from beat occurs in large torque.

Description

A kind of drive axle of heavy vehicle

Technical field

The utility model relates to technical field of vehicle, and in particular to a kind of drive axle of heavy vehicle.

Background technique

The reducer assemblies that the drive axle of heavy vehicle generally comprises axle housing and is mounted on axle housing, in existing drive axle In, it is in the Chinese lute shape inner cavity being installed on reducer assemblies among axle housing, when installing positioning, by reducer assemblies from axle housing Intermediate mounting hole is packed into inner cavity, is positioned using the part of installation bore edges, makes the overlapping edges of reducer assemblies shell At the edge of mounting hole, reducer assemblies and axle housing are fixed, in this way, reducer assemblies is caused to be located at two on the inside of mounting hole Bearing cap is hanging, i.e., reducer assemblies are only fixed at the shell of reducer assemblies and mounting hole edge mate, in this way, In vehicle travel process, when needing to generate larger power, then reducer assemblies are required to export biggish torque, at this point, retarder Component will appear a beat more by a small margin, influence vehicle performance.

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 of heavy vehicle, Retarder can be limited in the circumferential direction of reducer assemblies, reducer assemblies is avoided to occur in vehicle travel process partially Pendulum.

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

A kind of drive axle of heavy vehicle, including axle housing and reducer assemblies, reducer assemblies include reducer shell with And bearing cap, bearing cap are fixedly connected with reducer shell, axle housing includes hollow linkage section and two respectively by linkage section The outwardly extending central siphon in both ends, be provided with a mounting hole and rear cover that is opposite with the mounting hole and setting, rear cover on linkage section It being integrally formed with linkage section and central siphon, rear cover and linkage section cohesive position are fixed with the stop part in linkage section inner cavity, Bearing is placed in the inner cavity of linkage section, and multiple locating parts outwardly protruded are provided on bearing cap, and stop part is surrounded on this The periphery of multiple locating parts, and stop part and multiple locating parts form a limit group for preventing reducer assemblies from swinging Part.

An annular supporting surface, the edge of reducer shell are formed positioned at the outside of mounting hole open edge on linkage section It is provided with a flange, which fits on supporting surface, and supporting surface and flange are bolted to connection.

Stop part includes two sections of arc-shaped retaining rings, and outer rim and the shell welding of retaining ring are fixed, and the inner edge top of retaining ring is set It is equipped with an inclined-plane, which gradually tilts towards the middle part of linkage section from one end close to mounting hole to one end close to rear cover.

The inner edge of retaining ring is additionally provided with the confined planes being located on the outside of locating part, and the confined planes are by inclined-plane close to the one of rear cover End extends towards rear cover.

The drive axle includes two opposed bearing caps, is respectively provided on each bearing cap there are two locating part, two bearings The locating part covered cooperates with two retaining rings respectively.

The utility model has the beneficial effects that:

Compared with the prior art, the utility model passes through the stop part being fixed on axle housing and deceleration in axle housing inner cavity The locating part cooperation that device assembly protrudes above, limits it in the circumferential direction of reducer assemblies, prevents reducer assemblies from turning round greatly Beat occurs when square.

Detailed description of the invention

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

Fig. 2 is the structural schematic diagram of Fig. 1 guide ring；

Fig. 3 is the structural schematic diagram of the utility model axle housing.

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 of heavy vehicle of the utility model comprising axle housing 10 and retarder Component 20, reducer assemblies include reducer shell 21, bearing cap 22 and bearing cap 23, and bearing cap 22 and bearing cap 23 pass through spiral shell Bolt is fixedly connected on reducer shell 21, is equipped in the space that reducer shell 21, bearing cap 22 and bearing cap 23 surround Driving gear set；Axle housing 10 is an overall structure comprising linkage section 11 and two central siphons 12, two central siphons 12 are distinguished Being extended outwardly by the both ends of linkage section 11, linkage section 11 is the structure of mesoporous, it is internal to form an installation cavity, and connecting A mounting hole 111 is arranged in the side of section 11, which is used to that reducer assemblies 20 to be provided with bearing cap 22 and bearing Lid 23 partially passes through, and is partially nested in this of reducer assemblies 20 in installation cavity of linkage section 11, on linkage section 11 The side opposite with mounting hole 111 is provided with rear cover 112, and rear cover 112, linkage section 11 and central siphon 12 are integrally formed, specific Can be process by one with pipe fitting by interior swollen technique.At the position that rear cover 112 is connected with linkage section 11, it is provided with Stop part, the part that bearing cap 22 is located in installation cavity are provided with the locating part 221 protruded towards outside, same bearing cap 23 On be also equipped with towards outside protrude locating part 231, specifically, on bearing cap 22 be arranged two locating parts 221, bearing cap 23 Two locating parts 231 of upper setting are located at limit there are four the part settings of 11 inner cavity of linkage section in reducer assemblies 20 as a result, Part, four locating parts can be in the uniformly arrangement of the periphery of reducer assemblies, and stop part is looped around the outer of four locating parts It encloses, in this way, being limited using stop part to multiple locating parts, limit assembly composed by the two is for preventing retarder group Part 20 is swung, that is, defines part that reducer assemblies 20 are located inside installation cavity in the plane perpendicular to 112 normal of rear cover It is subjected to displacement.

It is located on the outside of the edge that mounting hole 111 is open on linkage section 11 in the utility model and forms a supporting surface 113, It is corresponding, at the edge of reducer shell 21 integrally formed with a flange 211, when reducer assemblies 20 and axle housing 10 are installed to Behind position, which is fitted on supporting surface 113, and flange 211 is bolted to connection with supporting surface 113,211 He of flange Supporting surface 113 is for limiting reducer assemblies 20 and axle housing 10 in the relative position along 112 normal direction of rear cover.During installation, After bolt fastening flange 211 and supporting surface 113 so that above-mentioned stop part it is circular the outer of multiple locating parts is set It encloses.

In the utility model, stop part includes two sections of arc-shaped retaining rings 13, and two 13 outer rims of retaining ring and axle housing 10 weld Fixation is connect, the inside of rear cover 112 Yu 11 joining place of linkage section is particularly welded on, in order to during installation, to retarder group Part 20 is positioned, and the inner edge top of retaining ring 13 is provided with an inclined-plane 131, inclined-plane 131 from one end close to mounting hole 113 to It is gradually tilted towards the middle part of linkage section 11 close to one end of rear cover 112, in this way, which the inclined-plane 131 of two retaining rings 13 makes The top of two retaining rings 13 surrounds a up big and down small cone cell construction, when installing reducer assemblies 20, reducer assemblies 20 On multiple locating parts limited by inclined-plane 131, keep centering, thus reducer assemblies are carried out using retaining ring 13 it is accurately fixed Position.The inner edge of retaining ring 13 is additionally provided with a confined planes 132, and confined planes 132 are located at the periphery of locating part, and the confined planes 132 are by oblique Face 131 extends close to one end of rear cover 112 towards rear cover 112, preferably, after being installed in place reducer assemblies 20, limit Face 132 is bonded with the outer rim of locating part, but since there are tolerances in components itself and assembling process, can permit limit A lesser gap is formed between plane 132 and the outer rim of locating part, which is substantially controlled within the scope of 1mm Cooperated using confined planes 132 and locating part, to limit the beat of reducer assemblies.

In the utility model, two retaining rings 13 are set by stop part, in order to be placed in retaining ring 13 in welding In the inner cavity of linkage section 11, certainly, stop part can also be three or three or more retaining rings, and the quantity of retaining ring is not exposed to limit It is fixed, as long as its outer rim that can be placed in locating part, limit assembly is collectively constituted with locating part, to limit the swing of reducer assemblies ?.Two locating parts 221 on above-mentioned bearing cap 22 and one of retaining ring 13 cooperate, another retaining ring 13 is then and axis Hold two locating parts 231 cooperation on lid 23.

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. a kind of drive axle of heavy vehicle, including axle housing and reducer assemblies, which is characterized in that reducer assemblies include slowing down Device shell and bearing cap, bearing cap are fixedly connected with reducer shell, and axle housing includes hollow linkage section and two difference By the outwardly extending central siphon in the both ends of linkage section, a mounting hole and opposite with the mounting hole and set is provided on linkage section Rear cover, rear cover and linkage section and central siphon are integrally formed, and rear cover and linkage section cohesive position are fixed in linkage section inner cavity Stop part, bearing is placed in the inner cavity of linkage section, and multiple locating parts outwardly protruded, stop part are provided on bearing cap It is surrounded on the periphery of multiple locating part, and stop part and multiple locating parts form one for preventing reducer assemblies from swinging Limit assembly.

2. the drive axle of heavy vehicle as described in claim 1, which is characterized in that be located at mounting hole open edge on linkage section Outside form an annular supporting surface, the edge of reducer shell is provided with a flange, which fits on supporting surface, And supporting surface and flange are bolted to connection.

3. the drive axle of heavy vehicle as described in claim 1, which is characterized in that stop part includes two sections of arc-shaped gears Circle, outer rim and the shell welding of retaining ring are fixed, and the inner edge top of retaining ring is provided with an inclined-plane, and the inclined-plane is by close to the one of mounting hole It holds to one end close to rear cover and is gradually tilted towards the middle part of linkage section.

4. the drive axle of heavy vehicle as claimed in claim 3, which is characterized in that the inner edge of retaining ring is additionally provided with one and is located at limit Confined planes on the outside of the part of position, the confined planes are extended close to one end of rear cover towards rear cover by inclined-plane.

5. the drive axle of heavy vehicle as claimed in claim 3, which is characterized in that the drive axle includes two opposed bearings It covers, is respectively provided on each bearing cap there are two locating part, the locating part that two bearings cover cooperates with two retaining rings respectively.