CN217598241U

CN217598241U - Welding type drive axle

Info

Publication number: CN217598241U
Application number: CN202221792943.9U
Authority: CN
Inventors: 保钧铭; 邬思特; 喻昌松
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-10-18
Anticipated expiration: 2032-07-13

Abstract

The embodiment of the utility model discloses a welded drive axle, including left half-bridge pipe and right half-bridge pipe, left half-bridge pipe and right half-bridge pipe are adjacent and locate left and right both ends respectively, be provided with the differential lock cavity between left half-bridge pipe and the right half-bridge pipe, left half-bridge pipe and right half-bridge pipe are adjacent one end respectively and all are installed in the inside of differential lock cavity, the differential lock cavity with be located the left half-bridge pipe and right half-bridge pipe welded fastening respectively inside the differential lock cavity, the left and right sides of differential lock cavity all connect and are provided with the looks transversal curved surface, the laminating is fixed between looks transversal curved surface and left half-bridge pipe and right half-bridge pipe; the structure of the middle section of the axle housing is simplified, materials are reduced, the arrangement of the left half axle tube and the right half axle tube is beneficial to the reference determination of welding and machining, and the intersecting line curved surfaces at the two ends of the upper half stamping crown-shaped cavity and the left half axle tube and the right half axle tube, which are matched with the cross section of the left half axle tube and the right half axle tube, are welded together to form a stable triangular structure, so that the rigidity of the axle housing is greatly improved.

Description

Welding type drive axle

Technical Field

The utility model relates to an automobile drive axle technical field especially relates to welded type transaxle.

Background

When the vehicle works, the engine generates power, the power is transmitted to the drive axle through the clutch, the speed changer and the transmission shaft, the driving force is increased in torque and changed in power transmission direction through speed reduction by the main speed reducer of the drive axle, the differential mechanism realizes the differential motion performance of the vehicle, the output power of the main speed reducer is distributed to the left half shaft and the right half shaft by the half shaft gear, and the half shafts drive the wheels to rotate so as to enable the vehicle to move;

in general, a main speed reducer, a differential mechanism and a half shaft device are all arranged on a drive axle housing, and the axle housing not only protects the transmission mechanism, but also bears the load of an automobile, so the structural form of the drive axle housing is very important;

the drive axle housing commonly used at present has the following forms:

1. the axle housing is characterized in that a main speed reducer shell is cast to be used as a part of the axle housing, the main speed reducer shell is heavy in weight and large in size, and the comfort and the trafficability of the whole automobile are affected; the manufacturing process is complicated, the installation and maintenance are difficult, any one of the main speed reducer shell or the axle housing needs to be integrally replaced when damaged, and the cost is high;

2. a multi-section stamping and welding integrated axle housing is common as SUV drive axles of JB6480 lion light passenger cars, great wall pickup, changfeng cheetah and the like, and is characterized in that the middle section is a steel plate stamping body, 4 triangular plates are required to be embedded, steel pipes are butt-welded on two sides, and flanges are arranged at the other two ends of the steel pipes and are formed by assembly welding, so that the equipment investment is large, the process is complex, the welding line is long, the requirement on welding strength is high, the form and position precision is not easy to guarantee, the rigidity is unstable, and the manufacturing difficulty is large;

3. the axle housing is characterized in that the axle housing is formed by assembling and welding an integral upper stamping part, an integral lower stamping part, 4 triangular plates and two-end half-shaft sleeves, equipment investment is large, the process is complex, a welding line is longer, welding strength requirements are higher, form and position accuracy is not easy to guarantee, and the same rigidity is unstable;

the driving axle housing is large in equipment capital investment, complex in process, large in manufacturing difficulty, not easy to guarantee comprehensive quality and mechanical performance, high in cost indexes, insufficient in flexibility and low in utilization rate due to the fact that a die and a tool are developed for a single product in product development, and the product structure enables used materials to be large in loss, so that the welding type driving axle is provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art not enough, the embodiment of the utility model provides a welded drive axle has both simplified the structure in axle housing middle section, has also reduced the material, and the benchmark of welding and machining is confirmed to very doing benefit to of arranging of left and right half bridge pipe, and upper and lower half punching press coronary cavity both ends, with about half bridge pipe cross-section assorted intersecting line curved surface and the welding of left and right half bridge pipe have formed stable triangle-shaped structure, make axle housing rigidity obtain great improvement.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solution: welded drive axle, including left half bridge pipe and right half bridge pipe, both ends about left side half bridge pipe and right half bridge pipe are adjacent and locate respectively, be provided with the differential lock cavity between left side half bridge pipe and the right half bridge pipe, left side half bridge pipe and right half bridge pipe are adjacent one end respectively and are all installed in the inside of differential lock cavity, the differential lock cavity with be located the inside left half bridge pipe of differential lock cavity and right half bridge pipe welded fastening respectively, the left and right sides of differential lock cavity all is connected and is provided with the looks transversal curved surface, it is fixed to laminate between looks transversal curved surface and left half bridge pipe and the right half bridge pipe.

Preferably, the front and the rear of the differential lock cavity are respectively provided with a bridge shell cover and a reinforcing ring, and the bridge shell cover and the reinforcing ring clamp and weld and fix the differential lock cavity, the left half bridge tube and the right half bridge tube.

Preferably, the differential lock cavity comprises an upper half stamping crown cavity and a lower half stamping crown cavity, the upper half stamping crown cavity and the lower half stamping crown cavity are arranged up and down, each of the upper half stamping crown cavity and the lower half stamping crown cavity comprises a left half bridge pipe and a right half bridge pipe, and the upper half stamping crown cavity and the lower half stamping crown cavity are fixed to the surfaces of the left half bridge pipe and the right half bridge pipe in a welded mode.

Preferably, the axle housing cover is provided with an oil filling hole, the upper half stamping coronary cavity is provided with a vent valve mounting hole, and the lower half stamping coronary cavity is provided with an oil drain hole.

Preferably, half axle ring flanges are welded at the outer ends of the left half axle pipe and the right half axle pipe, and steel plate spring seats are arranged on the left half axle pipe and the right half axle pipe.

Preferably, the cross-sectional outer shapes of the left half-bridge pipe and the right half-bridge pipe are circular or square or elliptical or curved.

Compared with the prior art, the embodiment of the utility model provides a beneficial effect that can reach is:

the differential lock cavity is firmly welded with the left half-bridge pipe and the right half-bridge pipe, so that the structure of the middle section of the axle housing is simplified, materials are reduced, the structure of the axle housing is compact, the raw material consumption and the investment cost of a die are greatly reduced, the manufacturing period of a product and the development period of a new product are greatly shortened, the reinforcing ring and the axle housing cover are welded on a welded body of the differential lock cavity and the left half-bridge pipe and the right half-bridge pipe, the welded body is firmer, the overall strength, the rigidity and the installation accuracy of the axle housing body are improved in a doubling mode, the arrangement of the left half-bridge pipe and the right half-bridge pipe is very beneficial to determining the welding and machining reference, the fixture is relatively simple in structure and better in manufacturability, the intersecting line curved surfaces, matched with the cross sections of the left half-bridge pipe and the right half-bridge pipe, at the two ends of the upper half-punching crown cavity and the lower half-punching cavity and the left half-bridge pipe and the right half-bridge pipe are welded to form a stable triangular structure, and the rigidity of the axle housing is greatly improved.

Drawings

The following is a drawing provided for the embodiment of the present invention, and the specific drawings are explained as follows:

fig. 1 is a front view of an embodiment of the present invention.

Fig. 2 is a side view of an embodiment of the present invention.

Fig. 3 is a front view of an embodiment of the present invention.

Fig. 4 is a rear view of the embodiment of the present invention.

Wherein: 1. a left half bridge tube; 2. a differential lock cavity; 3. a right half-bridge tube; 4. a steel plate spring seat; 5. intersecting line curved surfaces; 6. a half-shaft flange; 7. the upper half is punched with a crown cavity; 8. the lower half is punched into a crown cavity; 9. a bridge shell cover; 10. a reinforcement ring.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention. The experimental procedures in the following examples were carried out in a conventional manner unless otherwise specified, and materials, reagents and the like used in the following examples were commercially available unless otherwise specified.

Examples

Please refer to fig. 1, the embodiment of the present invention provides a welded drive axle, including left half-bridge pipe 1 and right half-bridge pipe 3, left half-bridge pipe 1 and right half-bridge pipe 3 are adjacent and locate respectively about both ends, be provided with differential lock cavity 2 between left half-bridge pipe 1 and the right half-bridge pipe 3, left half-bridge pipe 1 and right half-bridge pipe 3 adjacent one end respectively are all installed in the inside of differential lock cavity 2, differential lock cavity 2 and left half-bridge pipe 1 and right half-bridge pipe 3 that are located inside of differential lock cavity 2 are welded fastening respectively, differential lock cavity 2 is connected in the left and right sides all and is provided with intersecting line curved surface 5, intersecting line curved surface 5 and laminating between left half-bridge pipe 1 and the right half-bridge pipe 3 are fixed, make welding positioning accuracy higher, thereby make the welding firm, differential lock cavity 2 and left half-bridge pipe 1 and right half-bridge pipe 3 weld firm, both simplified the structure in axle housing middle section, the material has also been reduced, left half-bridge pipe's arrangement does benefit to the definite of welding and machining very much, upper and lower ground of right half-bridge pipe, the ground of half-bridge pipe and the right half-bridge pipe phase matching, the half-bridge pipe obtain the great triangle-bridge structure that the right half-bridge stabilizes about the half-bridge structure that the half bridge stabilizes the axle housing, the half-bridge structure.

As shown in fig. 3 and 4, the utility model discloses a front and back of differential lock cavity 2 is equipped with axle housing lid 9 and beaded finish 10 respectively, and axle housing lid 9 and beaded finish 10 are equipped with oil filler point on the axle housing lid 9 with differential lock cavity 2, left half-

bridge pipe

1 and 3 centre grippings of right half-bridge pipe and welded fastening.

As shown in fig. 2, the utility model discloses a differential lock cavity 2 includes half first punching press coronary cavity 7 and half next punching press coronary cavity 8, and half first punching press coronary cavity 7 is arranged from top to bottom with half next punching press coronary cavity 8, and half first punching press coronary cavity 7 and half next punching press coronary cavity 8 each contain one section left half bridge pipe 1 and half right bridge pipe 3 to with the surface welded fastening of half left bridge pipe 1 and half right bridge pipe 3, be equipped with the breather valve mounting hole on half first punching press coronary cavity 7, half next punching press coronary cavity 8 is equipped with the oil drain hole.

As shown in fig. 1 and fig. 2, the utility model discloses a cross-sectional appearance of left half bridge pipe 1 and right half bridge pipe 3 is circular or square or oval type or curvilinear figure, and half shaft flange 6 has all been welded to the outer end of left half bridge pipe 1 and right half bridge pipe 3, all is provided with steel sheet spring seat 4 on left half bridge pipe 1 and the right half bridge pipe 3, and steel sheet spring seat 4 is used for connecting automobile suspension system.

The embodiment of the utility model provides a welded drive axle, differential lock cavity 2 and left half-bridge pipe 1 and right half-bridge pipe 3 welding firmly, the structure in axle housing middle section has both been simplified, the material has also been reduced, make its compact structure, the raw materials quantity and the investment cost of mould have been reduced greatly, the manufacturing cycle and the new product development cycle of product have also been shortened greatly simultaneously, weld stiffener ring 10 and axle housing lid 9 to the welded body of differential lock cavity 2 and left and right half-bridge pipe on, make the welded body more firm, the bulk strength of axle housing body, rigidity and installation accuracy all have the improvement of doubling, the disposition of left and right half-bridge pipe is favorable to welding and machining's benchmark to confirm, frock clamp structure is simple relatively, the manufacturability is better, half-bridge upper and lower punching press crown shape cavity both ends, with control half-bridge cross-section assorted looks transversal curved surface 5 and control the welded of half-bridge pipe and control the stable triangle-shaped structure, make axle housing rigidity obtain great improvement.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Welded type transaxle, its characterized in that: including left half-bridge pipe (1) and right half-bridge pipe (3), left side half-bridge pipe (1) and right half-bridge pipe (3) are adjacent and locate respectively about both ends, be provided with differential lock cavity (2) between left side half-bridge pipe (1) and right half-bridge pipe (3), left side half-bridge pipe (1) and right half-bridge pipe (3) adjacent one end respectively all install in the inside of differential lock cavity (2), differential lock cavity (2) and left half-bridge pipe (1) and right half-bridge pipe (3) that are located differential lock cavity (2) inside are welded fastening respectively, the left and right sides of differential lock cavity (2) all is connected and is provided with intersection line curved surface (5), it is fixed to laminate between intersection line curved surface (5) and left half-bridge pipe (1) and right half-bridge pipe (3).

2. The welded drive axle of claim 1, wherein: the front and back of the differential lock cavity (2) are respectively provided with a bridge shell cover (9) and a reinforcing ring (10), and the bridge shell cover (9) and the reinforcing ring (10) clamp and weld the differential lock cavity (2), the left half-bridge tube (1) and the right half-bridge tube (3).

3. The welded drive axle of claim 2, wherein: differential lock cavity (2) are including first punching press coronary cavity (7) and second punching press coronary cavity (8), first punching press coronary cavity (7) is arranged from top to bottom with second punching press coronary cavity (8), first punching press coronary cavity (7) and second punching press coronary cavity (8) each contain one section left half-bridge pipe (1) and right half-bridge pipe (3) to with the surface welded fastening of left half-bridge pipe (1) and right half-bridge pipe (3).

4. The welded drive axle of claim 3, wherein: an oil filling hole is formed in the bridge shell cover (9), a vent valve mounting hole is formed in the upper half stamping crown-shaped cavity (7), and an oil drain hole is formed in the lower half stamping crown-shaped cavity (8).

5. The welded drive axle of claim 1, wherein: half-axle ring flange (6) have all been welded to the outer end of left side half-bridge pipe (1) and right half-bridge pipe (3), all be provided with steel sheet spring seat (4) on left side half-bridge pipe (1) and right half-bridge pipe (3).

6. The welded drive axle of claim 1, wherein: the cross section of the left half-bridge tube (1) and the right half-bridge tube (3) is circular or square or elliptical or curved.