CN212073563U - Electric drive tipper rear axle housing based on fatigue life promotes - Google Patents
Electric drive tipper rear axle housing based on fatigue life promotes Download PDFInfo
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- CN212073563U CN212073563U CN202020700398.0U CN202020700398U CN212073563U CN 212073563 U CN212073563 U CN 212073563U CN 202020700398 U CN202020700398 U CN 202020700398U CN 212073563 U CN212073563 U CN 212073563U
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- axle housing
- rear axle
- winding drum
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Abstract
The utility model discloses an electric drive dumper rear axle housing based on fatigue life promotion, which comprises a rear axle housing tripod and a rear axle housing winding drum; the rear axle housing tripod is formed by welding a tripod flange, a tripod top plate, a tripod bottom plate, a tripod left side plate and a tripod right side plate; the rear axle housing winding drum is formed by welding a winding drum and two winding drum flanges; wherein, the welding seams of the tripod flange and the tripod top plate, the tripod bottom plate, the tripod left side plate and the tripod right side plate are all welded with reinforcing plates; a plurality of ring ribs are uniformly arranged inside the winding drum, a plurality of transverse rib plates I and sealing plates are arranged between the ring ribs and the winding drum flange, and a plurality of transverse rib plates II are arranged between the ring ribs and the ring ribs. The utility model discloses wholly adopt steel-casting and steel sheet structure welding form, adopt high-quality steel-casting at the great position of atress complicacy, stress concentration, through rational design welding seam form and the inside gusset position of reel, promote structural strength.
Description
Technical Field
The utility model relates to an electric drive tipper rear-axle housing based on fatigue life promotes belongs to the mining machinery field, especially exchanges electric drive tipper.
Background
The electric drive dumper is important transportation equipment for the surface mine, and the rear axle housing bears approximately two thirds of load when heavy load due to poor working conditions and complex road conditions of the surface mine in the transportation process, so that the electric drive dumper is very stressed and has the problems of deformation and early cracking.
At present, the rear axle housing structure adopts the steel sheet spare welding to form more, adopts the steel sheet concatenation including the axle housing tripod, and the axle housing reel adopts steel sheet edge rolling + inside gusset welding form, draws support and rear suspension support to also adopt the steel sheet to splice and weld and form. In order to improve the overall performance, the part thickness is increased at the stress concentration part, and a welding seam is optimized or a reinforcing rib is added. The method reduces the stress level and increases the whole weight of the rear axle housing.
Disclosure of Invention
The utility model discloses a solve above technical problem, provide an electric drive tipper rear axle housing based on fatigue life promotes. The welding mode of the steel casting and the steel plate structure is adopted integrally, high-quality steel casting is adopted at the position with complex stress and large stress concentration, and the structural strength is improved by reasonably designing the welding seam mode and the position of the rib plate in the winding drum; the stress relief heat treatment is integrally carried out after the assembly is welded, so that the welding stress release is accelerated, the integral stress level is reduced, and the comprehensive fatigue life of the rear axle housing is greatly prolonged.
The utility model discloses a solve the technical scheme that above technical problem adopted and be:
a rear axle housing of an electric drive dumper based on fatigue life improvement comprises a rear axle housing tripod and a rear axle housing winding drum; the rear axle housing tripod is formed by welding a tripod flange, a tripod top plate, a tripod bottom plate, a tripod left side plate and a tripod right side plate; the rear axle housing winding drum is formed by welding a winding drum and two winding drum flanges; reinforcing plates are welded at the welding seams of the tripod flange and the tripod top plate, the tripod bottom plate, the tripod left side plate and the tripod right side plate; a plurality of ring ribs are uniformly arranged in the winding drum, a plurality of transverse rib plates I and sealing plates are arranged between the ring ribs and the winding drum flange, and a plurality of transverse rib plates II are arranged between the ring ribs and the ring ribs.
Further, circle the horizontal web II that arranges between muscle and the circle muscle and distribute in rear-axle housing reel bottom and top, wherein, four are arranged to rear-axle housing reel bottom, and three is arranged at rear-axle housing reel top.
Further, a notch is formed in the transverse rib plate II.
Furthermore, the ring rib is formed by butt welding four arc-shaped rib plates.
Further, an air port is formed in the front side of the rear axle housing winding drum, and an air deflector is arranged at the air port; a rear axle housing access hole is formed in the rear side of the rear axle housing winding drum; the bottom of the rear axle housing winding drum is provided with a plurality of oil discharge ports.
Furthermore, the winding drum is formed by butt welding of a plate rolling belt backing plate; the reel is characterized in that two ends of the reel are welded with reel flanges, and U-shaped welding seams with backing plates are adopted for the reel and the reel flanges.
Furthermore, an air duct is arranged at the position of the tripod bottom plate, and a bottom reinforcing plate is arranged at the welding position of the air duct and the tripod bottom plate.
Furthermore, welding seams of the tripod flange, the tripod top plate, the tripod bottom plate, the tripod left side plate and the tripod right side plate are subjected to full penetration welding with backing plates; and the welding seams of the tripod top plate, the tripod bottom plate, the tripod left side plate and the tripod right side plate are in lap joint fillet welding.
Further, a tie rod support, a right rear suspension support, a left rear suspension support and a traction seat are welded on the rear axle housing winding drum.
Further, the tie rod support, the right rear suspension support and the left rear suspension support are made of steel castings.
The utility model discloses beneficial effect:
mounting holes are not formed in the side face and the top of a tripod of the rear axle housing, reinforcing plates are additionally arranged in the connecting area of a side plate of the tripod of the rear axle housing and a flange of the tripod, the reinforcing plates are additionally arranged at the connecting part of the air duct and a bottom plate of the tripod, and the flange of the tripod and the peripheral side plates are welded completely, so that the overall structural strength is improved; the tie rod support, the left rear suspension support and the right rear suspension support adopt cast steel in complex stress areas, so that the structure is simple, and welding stress concentration is avoided; the reel flange is integral, and reel butt weld and reel flange and reel welding seam adopt the full penetration welding of taking the backing plate, and four horizontal muscle and top equipartition are arranged to the reel bottom and are put three horizontal muscle, and box structure is constituteed to horizontal muscle board I and shrouding between reel flange and the circle muscle, and intensity promotes by a wide margin. The whole rear axle housing is subjected to heat treatment after the welding is finished, so that the welding stress is released, the comprehensive mechanical property is improved, and the fatigue life is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of a rear axle housing of the electric drive dumper of the utility model;
FIG. 2 is a schematic structural diagram of a tripod of the rear axle housing of the present invention;
FIG. 3 is a schematic structural diagram of a triangular frame of the rear axle housing of the present invention;
FIG. 4 is a schematic view of a weld of the tripod flange and the side plate of the present invention;
FIG. 5 is a schematic view of the welding seam between the upper and lower plates and the left and right side plates of the tripod of the present invention;
FIG. 6 is a schematic view of the rear axle housing reel structure of the present invention;
FIG. 7 is a schematic view of a spool flange and a spool weld of the present invention;
fig. 8 is a schematic view of a rear axle housing drum transverse rib plate ii of the utility model.
In the drawings:
1. a rear axle housing tripod; 2. a tie rod support; 3. a rear axle housing spool; 4. a right rear suspension support; 5. a traction seat; 6. a left rear suspension support; 7. an air duct; 8. a tripod flange; 9. a bottom stiffener; 10. a tripod base plate; 11. a tripod left side plate; 12. a tripod top plate; 13. a tripod right side plate; 14. a right reinforcing plate; 15. a left stiffener; 16. a top stiffener; 17. a spool flange; 18. a base plate; 19. an air deflector; 20. looping ribs; 21. a transverse rib plate I; 22. closing the plate; 23. a transverse rib plate II; 24. an oil discharge port; 25. a rear axle housing access hole; 26. and (4) winding the drum.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the rear axle housing of the electric drive dumper is formed by welding a rear axle housing tripod 1, a rear axle housing winding drum 3, a tie rod support 2, a left rear suspension support 6, a right rear suspension support 4, an air duct 7, a traction seat 5 and the like.
As shown in fig. 2 and 3, the rear axle housing tripod 1 is formed by welding a tripod flange 8 and a tripod bottom plate 10, a tripod left side plate 11, a tripod top plate 12, a tripod right side plate 13 and an air duct 7, in order to improve the fatigue strength of a key stress position, a reinforcing plate is designed in a welding area of the tripod flange 8 and peripheral side plates, namely, a right reinforcing plate 14 is designed in a welding area of the tripod flange 8 and the tripod right side plate 13, a left reinforcing plate 15 is designed in a welding area of the tripod flange 8 and the tripod left side plate 11, a top reinforcing plate 16 is designed in a welding area of the tripod flange 8 and the tripod top plate 12, and a bottom reinforcing plate 9 is designed in a welding area of the tripod.
Further scheme: the welding seams between the tripod flange 8 and the peripheral side plates (the tripod bottom plate 10, the tripod left side plate 11, the tripod top plate 12 and the tripod right side plate 13) and the reinforcing plates (the right reinforcing plate 14, the left reinforcing plate 15, the top reinforcing plate 16 and the bottom reinforcing plate 9) are full penetration welding with backing plates (indicated by an arrow A, as shown in figure 4). The welding seams of the tripod top plate 12 and the tripod bottom plate 10 and the tripod left side plate 11 and the tripod right side plate 13 adopt lap fillet welding seams (indicated by an arrow B, as shown in figure 5).
Further scheme: and a bottom reinforcing plate 9 is arranged at the welding part of the air duct 7 and the tripod. The tie rod support 2, the right rear suspension support 4 and the left rear suspension support 6 are made of steel castings.
As shown in fig. 6, the rear axle case spool 3 is formed by welding two spool flanges 17, a spool 26, an inner ring rib 20, a transverse rib plate i 21, a seal plate 22, a transverse rib plate ii 23 and the like.
The reel 26 is formed by butt welding of a plate coil with backing plates, wherein the backing plate 18 is the butt welding backing plate of the reel 26, and the reel flange 17 is an integral part. The reel 26 and the reel flange 17 are welded by a U-shaped welding seam with a backing plate (shown in figure 7).
Further scheme: three circles of ribs 20 are uniformly arranged in the winding drum 26, and each circle of ribs 20 is formed by butt welding four circular arc plates.
Four transverse rib plates II 23 are arranged at the bottom of the rear axle housing winding drum 3 between the ring ribs 20 and the ring ribs 20, and three transverse rib plates II 23 are arranged at the top of the rear axle housing winding drum 3 between the ring ribs 20 and the ring ribs 20.
Further scheme: a plurality of transverse rib plates I21 and closing plates 22 are arranged between the reel flange 17 and the ring rib 20, box-shaped structures are formed between the transverse rib plates I and the closing plates, and the connecting strength of the two ends is increased. The bottom of the transverse rib plate II 23 is provided with a notch, so that oil stains and sundries can be collected and cleaned conveniently.
An air port is arranged at the front side of the rear axle housing winding drum 3, and an air deflector 19 is arranged at the air port; a rear axle housing access hole 25 is formed in the rear side of the rear axle housing winding drum 3; the bottom of the rear axle housing drum 3 is provided with four oil discharge ports 24.
With continued reference to FIG. 1, after the rear axle housing is welded to the assembly, the entire assembly is subjected to stress relief heat treatment to accelerate stress release, improve overall mechanical properties and prolong fatigue life.
In conclusion, mounting holes are not formed in the side surface and the top of a tripod of the rear axle housing, reinforcing plates are added in the connecting area of a side plate of the tripod of the rear axle housing and a flange of the tripod, the reinforcing plates are added at the connecting part of an air duct and a bottom plate of the tripod, and the flange of the tripod and the side plates around adopt full penetration welding, so that the overall structural strength is improved; the tie rod support, the left rear suspension support and the right rear suspension support adopt cast steel in complex stress areas, so that the structure is simple, and welding stress concentration is avoided; the reel flange is integral, and reel butt weld and reel flange and reel welding seam adopt the full penetration welding of taking the backing plate, and four horizontal muscle and top equipartition are arranged to the reel bottom and are put three horizontal muscle, and box structure is constituteed to horizontal muscle board I and shrouding between reel flange and the circle muscle, and intensity promotes by a wide margin. The whole rear axle housing is subjected to heat treatment after the welding is finished, so that the welding stress is released, the comprehensive mechanical property is improved, and the fatigue life is prolonged.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention 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 although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides an electric drive tipper rear-axle housing based on fatigue life promotes which characterized in that:
the rear axle housing comprises a rear axle housing tripod and a rear axle housing winding drum;
the rear axle housing tripod is formed by welding a tripod flange, a tripod top plate, a tripod bottom plate, a tripod left side plate and a tripod right side plate;
the rear axle housing winding drum is formed by welding a winding drum and two winding drum flanges;
reinforcing plates are welded at the welding seams of the tripod flange and the tripod top plate, the tripod bottom plate, the tripod left side plate and the tripod right side plate;
a plurality of ring ribs are uniformly arranged in the winding drum, a plurality of transverse rib plates I and sealing plates are arranged between the ring ribs and the winding drum flange, and a plurality of transverse rib plates II are arranged between the ring ribs and the ring ribs.
2. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
circle the horizontal web II who arranges between muscle and the circle muscle and distribute in rear-axle housing reel bottom and top, wherein, four are arranged to rear-axle housing reel bottom, and three is arranged at rear-axle housing reel top.
3. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
and a notch is formed in the transverse rib plate II.
4. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
the ring rib is formed by butt welding four arc rib plates.
5. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
the front side of the rear axle housing winding drum is provided with an air port, and an air deflector is arranged at the air port;
a rear axle housing access hole is formed in the rear side of the rear axle housing winding drum;
the bottom of the rear axle housing winding drum is provided with a plurality of oil discharge ports.
6. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
the winding drum is formed by butt welding plate rolling belt backing plates;
the reel is characterized in that two ends of the reel are welded with reel flanges, and U-shaped welding seams with backing plates are adopted for the reel and the reel flanges.
7. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
an air duct is arranged at the bottom plate of the tripod, and a bottom reinforcing plate is arranged at the welding position of the air duct and the bottom plate of the tripod.
8. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
welding seams of the tripod flange, the tripod top plate, the tripod bottom plate, the tripod left side plate and the tripod right side plate are subjected to full penetration welding with backing plates;
and the welding seams of the tripod top plate, the tripod bottom plate, the tripod left side plate and the tripod right side plate are in lap joint fillet welding.
9. The electric drive dumper rear axle housing based on fatigue life improvement of claim 1 is characterized in that:
and a tie rod support, a right rear suspension support, a left rear suspension support and a traction seat are welded on the rear axle housing winding drum.
10. The electric drive dumper rear axle housing based on fatigue life improvement of claim 9, characterized in that:
the tie rod support, the right rear suspension support and the left rear suspension support are made of steel castings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020700398.0U CN212073563U (en) | 2020-04-30 | 2020-04-30 | Electric drive tipper rear axle housing based on fatigue life promotes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020700398.0U CN212073563U (en) | 2020-04-30 | 2020-04-30 | Electric drive tipper rear axle housing based on fatigue life promotes |
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| Publication Number | Publication Date |
|---|---|
| CN212073563U true CN212073563U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020700398.0U Active CN212073563U (en) | 2020-04-30 | 2020-04-30 | Electric drive tipper rear axle housing based on fatigue life promotes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113239465A (en) * | 2021-06-07 | 2021-08-10 | 徐州徐工矿业机械有限公司 | Heavy-duty load-bearing rear axle housing and design method thereof |
| CN113524982A (en) * | 2021-06-24 | 2021-10-22 | 三一重型装备有限公司 | Dumper rear axle housing assembly and dumper |
-
2020
- 2020-04-30 CN CN202020700398.0U patent/CN212073563U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113239465A (en) * | 2021-06-07 | 2021-08-10 | 徐州徐工矿业机械有限公司 | Heavy-duty load-bearing rear axle housing and design method thereof |
| CN113524982A (en) * | 2021-06-24 | 2021-10-22 | 三一重型装备有限公司 | Dumper rear axle housing assembly and dumper |
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