CN110761354A - Electric drive wheel loader drive axle assembly and electric drive wheel loader - Google Patents
Electric drive wheel loader drive axle assembly and electric drive wheel loader Download PDFInfo
- Publication number
- CN110761354A CN110761354A CN201911138658.8A CN201911138658A CN110761354A CN 110761354 A CN110761354 A CN 110761354A CN 201911138658 A CN201911138658 A CN 201911138658A CN 110761354 A CN110761354 A CN 110761354A
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- wheel loader
- wear
- drive axle
- drive wheel
- electric drive
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- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000005484 gravity Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
Abstract
The invention discloses a drive axle assembly of an electric transmission wheel type loader and the electric transmission wheel type loader, and relates to the field of engineering machinery. The electric drive wheel loader drive axle assembly includes a drive axle, a connecting frame, and a wear assembly. The drive axle comprises a connecting shaft; the connecting frame is positioned on the periphery of the connecting shaft. The wear-resisting component is arranged between the drive axle and the connecting frame so as to rotatably connect the drive axle and the connecting frame. According to the technical scheme, the bearing characteristics of the drive axle assembly of the electric wheel loader are considered, and the wear-resistant assembly is arranged between the drive axle and the connecting frame, so that the drive axle assembly of the electric wheel loader can bear larger axial force, radial force and tipping moment, and the drive axle assembly of the electric wheel loader can be suitable for the electric wheel loader.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a drive axle assembly of an electric transmission wheel loader and the electric transmission wheel loader.
Background
The loader is widely applied to construction projects such as railways, highways, ports and the like as an earth and stone construction machine. The loader is used for shoveling and loading bulk materials such as soil, gravel, lime, coal and the like.
The loader includes a mechanical loader and an electric drive loader. The two loaders have different drive chain structures, and the main loads and forces are different. In the related art, the drive axle of the mechanical loader cannot be directly applied to the electric drive loader.
Disclosure of Invention
In one aspect, the present invention provides an electric drive wheel loader drive axle assembly, comprising:
the drive axle comprises a connecting shaft;
the connecting frame is positioned on the periphery of the connecting shaft; and
and the wear-resisting component is arranged between the drive axle and the connecting frame so as to be rotatably connected with the drive axle and the connecting frame.
In some embodiments, the wear assembly comprises:
the first wear-resistant part is fixed on the inner wall of the mounting hole of the connecting frame; and
the second wear-resistant part is fixedly connected with the connecting shaft;
wherein, the first wear-resisting piece is nested with the second wear-resisting piece and is rotatably connected.
In some embodiments, the first wear part is an interference fit with the mounting hole of the attachment bracket.
In some embodiments, the second wear part is detachably connected to the connecting shaft.
In some embodiments, the transaxle further includes:
the connecting shaft is fixed on a wall body of the shell; and the number of the connecting shafts is two, and the two connecting shafts are symmetrically arranged along the central axis of the shell.
In some embodiments, the connecting frame is provided with a first lubricating oil passage, the first wear part is provided with a second lubricating oil passage, and the first lubricating oil passage and the second lubricating oil passage are communicated.
In some embodiments, the second oil passage includes:
the first oil way is arranged on the outer wall of the first wear-resistant part;
the second oil path is arranged on the inner wall of the first wear-resistant part; and
and the oil hole is communicated with the first oil path and the second oil path.
In some embodiments, the first oil passage is configured to be annular.
In some embodiments, the second oil passage includes:
the first sub oil path comprises a plurality of first sub oil paths, and each first sub oil path is arranged at intervals along the axial direction of the first wear-resistant part; and
and the second sub oil path is arranged between two adjacent first sub oil paths and communicates the two adjacent first sub oil paths.
In some embodiments, the connecting shaft is provided with a positioning boss, the connecting frame is provided with a positioning groove, and the positioning boss is matched with the positioning groove.
In some embodiments, the mating surfaces of the positioning boss and the positioning groove are provided with a gasket, and the mating surfaces of the first wear-resistant member and the second wear-resistant member extend to a lubricating surface of the gasket, which is far away from the central axis of the housing.
In some embodiments, the lubricating surface is provided with a lubrication groove.
In some embodiments, the free end of the connecting shaft is provided with a lightening hole.
In some embodiments, the electric drive wheel loader drive axle assembly further comprises:
and the end cover is positioned on the outer side of the free end of the connecting shaft and is fixedly connected with the connecting frame.
In some embodiments, the connecting frame is configured in a V-shape.
In some embodiments, the link end of the link frame is connected to the transaxle.
In some embodiments, a pallet is mounted at each mounting end of the connecting frame, each pallet being provided with a locating element.
The embodiment of the invention also provides an electric transmission wheel loader, which comprises a frame and the drive axle assembly of the electric transmission wheel loader provided by any technical scheme of the invention, wherein the frame is fixedly connected with the mounting end of the connecting frame.
According to the technical scheme, the electric transmission wheel loader drive axle assembly considers the bearing characteristics of the electric transmission wheel loader drive axle assembly, and the wear-resisting assembly is arranged between the drive axle and the connecting frame, so that the electric transmission wheel loader drive axle assembly can bear larger axial force, radial force and tipping moment, and the electric transmission wheel loader drive axle assembly can be suitable for an electric transmission wheel loader, particularly a large-tonnage electric transmission wheel loader. Taking the rear drive axle assembly of the electric transmission wheel loader adopting the structure as an example, the rear drive axle assembly can swing left and right by taking the connecting point of the connecting frame and the drive axle as a swing fulcrum. The frame is installed on the drive axle link, and like this vehicle is at the in-process of traveling, the drive axle has realized that the wheel contacts with the road surface well all the time, has improved vehicle traction force, has effectively prevented the vehicle simultaneously and has tumbled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic representation of a use of an electric drive wheel loader drive axle assembly provided by an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an electric drive wheel loader drive axle assembly provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an electric drive wheel loader drive axle assembly provided in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of part A of FIG. 3;
FIG. 5 is a perspective view of a first wear member of an electric drive wheel loader drive axle assembly in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of a first angle of an inner wall of a first wear member of an electric drive wheel loader drive axle assembly in accordance with an embodiment of the present invention;
figure 7 is a schematic illustration of a second angle of an inner wall of a first wear member of an axle assembly of an electric drive wheel loader according to an embodiment of the present invention;
FIG. 8 is a schematic perspective view of a shim of an electric drive wheel loader axle assembly provided in accordance with an embodiment of the present invention;
fig. 9 is a schematic view of a power transmission chain of an electric wheel loader according to another embodiment of the present invention.
Detailed Description
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 9.
Referring to fig. 1-4, an embodiment of the present invention provides an electric drive wheel loader drive axle assembly comprising a drive axle 1, a connecting frame 2, and a wear assembly 3.
Referring to fig. 2 and 3, in some embodiments, transaxle 1 includes a connecting shaft 11 and a housing 12. The connecting shaft 11 is fixed to a wall body of the housing 12. The housing 12 serves as a mounting member for a motor 101 and a reduction gear 102 described later, and the motor 101 and the reduction gear 102 are mounted inside the housing 12. The connecting shaft 11 is located outside the housing 12.
Referring to fig. 2 and 3, in some embodiments, the number of the connecting shafts 11 is two, and the two connecting shafts 11 are symmetrically arranged along the central axis of the housing 12.
The connection relationship between the two connection frames 2 and the housing 12 is the same, and only the connection relationship between one of the connection frames 2 and the housing 12 is explained in detail herein.
Referring to fig. 2, in some embodiments, the connecting frame 2 is configured in a V-shape or U-shape. The connecting frame 2 of the implementation mode is light and compact in structure and has a plurality of supporting points for the frame 8.
In some embodiments, the link end 23 of the link frame 2 is connected to the transaxle 1. The connecting end 23 of the connecting frame 2 serves as a connecting position of the connecting frame 2 and the connecting shaft 11.
Referring to fig. 2, in some embodiments, each mounting end 24 of the connecting frame 2 mounts a pallet 6, and each pallet 6 is provided with a locating member 7.
The connecting shaft 11 is welded on the outer wall of the shell 12, the connecting frame 2 is of a V-shaped structure, and the supporting plates 6 are welded on the upper portions of the two legs of the connecting frame 2. Each pallet 6 is provided with a positioning member 7 and six through holes 61 for bolt fastening. Realize layer board 6 and 8 connection location of frame and fastening connection through-hole 61 and fastener, convenient assembling improves the interchangeability of interface size simultaneously, only need change 8 installation location sizes of frame can. The positioning member 7 is, for example, a pin. The pallet 6 may be a flat plate. The supporting plate 6 is arranged, so that the connection area of the connecting frame 2 and the frame 8 is increased, and the frame 8 is more stable and reliable in support. By the technical scheme, the space of a chassis system is saved, and the layout of transmission parts and the arrangement of related pipelines are facilitated.
Referring to fig. 2 to 4, a wear assembly 3 is provided between the transaxle 1 and the link frame 2 to rotatably couple the transaxle 1 and the link frame 2. The wear assembly 3 is located specifically at the mating surfaces of the transaxle 1 and the connecting frame 2.
The electric drive wheel loader drive axle assembly is used to support the frame 8. The frame 8 is fixedly connected with the connecting frame 2. When the vehicle runs on a flat road, the connecting frame 2 and the drive axle 1 are basically static relatively. When the connecting frame 2 is impacted by external force to meet the motion condition, the connecting frame 2 can rotate relative to the drive axle 1 to realize that the connecting frame 2 rotates relative to the connecting shaft 11 of the drive axle 1, namely, the connecting frame 2 drives the frame 8 to swing relative to the drive axle 1 to realize buffering.
Referring to fig. 3 and 4, in some embodiments, the wear assembly 3 includes a first wear part 31 and a second wear part 32. The first wear member 31 is fixed to the inner wall of the mounting hole 20 of the link frame 2. The second wear-resistant part 32 is fixedly connected with the connecting shaft 11. Wherein the first wear part 31 is rotatably connected with the second wear part 32.
The outer wall of the connecting shaft 11 is sleeved with a second wear-resistant part 32, and the second wear-resistant part and the connecting shaft are detachably connected and are specifically connected by bolts 104. Referring to fig. 3 and 4, the second wear-resistant member 32 includes a connecting portion 321 and a sleeve portion 322, which are fixedly connected or integrated. The sleeve portion 322 is located outside the outer circumferential surface of the connecting shaft 11, and the connecting portion 321 is located outside the end surface of the connecting shaft 11. The bolt 104 penetrates the connecting portion 321 and extends into the wall of the connecting shaft 11 to achieve the bolt connection of the second wear-resistant member 32 with the connecting shaft 11. The second wear-resistant member 32 serves to protect the connecting shaft 11.
The inner wall of the mounting hole 20 of the connecting frame 2 is provided with a first wear-resistant part 31 which is in interference fit with the first wear-resistant part. The interference fit connection is reliable and no other connection components are required, which also makes the electric drive wheel loader drive axle assembly more compact. According to the technical scheme, the connecting frame 2 and the shell 12 are rotatably connected through the second wear-resistant part 32 and the first wear-resistant part 31.
Above-mentioned technical scheme, first wearing parts 31 and link 2 fixed connection, second wearing parts 32 and connecting axle 11 fixed connection. The second wear-resistant part 32 is used for protecting the support shaft, so that the main body of the drive axle 1 is protected to be intact, and the maintenance cost is low. The relative rotation of the connecting frame 2 and the connecting shaft 11 is converted into the relative rotation of the first wear-resistant member 31 and the second wear-resistant member 32 in case of a sufficiently large external impact.
The first wear-resistant member 31 and the second wear-resistant member 32 are made of copper or other hard materials. After the first wear-resistant member 31 and the second wear-resistant member 32 are worn to a certain extent, the first wear-resistant member 31 and the second wear-resistant member 32 are replaced with new ones. Therefore, the technical scheme slows down the abrasion of the connecting frame 2 and the connecting shaft 11 and prolongs the service life of the connecting frame 2 and the connecting shaft 11.
Referring to fig. 3 to 7, in some embodiments, the link frame 2 is provided with a first lubricating oil passage 21, the first wear part 31 is provided with a second lubricating oil passage 33, and the first lubricating oil passage 21 and the second lubricating oil passage 33 are communicated. The first lubricating oil channel 21 and the second lubricating oil channel 33 are arranged, so that parts with relative motion are effectively lubricated, the service life of the parts is prolonged, and the reliability of the whole machine is improved.
One end of the first lubricating oil passage 21 serves as an oil inlet end, and the other end thereof communicates with the second lubricating oil passage 33. The first oil duct 21 specifically includes two sections, a first section 211 is located inside the leg of the link frame 2, and a second section 212 is located inside the connecting end 23 of the link frame 2, and the two sections are connected. When the maintenance staff is in operation, the lubricant is injected from the inlet of the first section 211 of the first lubricant duct 21. Then, the lubricating oil flows to the second lubricating oil channel 33 under the combined action of the self gravity and the stress applied during the operation of the electric wheel loader, and finally reaches the rotating matching surfaces of the first wear-resistant part 31 and the second wear-resistant part 32. The lubricating oil reduces the rotating friction force of the matching surfaces of the first wear-resistant part 31 and the second wear-resistant part 32, so that the connecting frame 2 rotates smoothly and reliably relative to the drive axle 1.
Referring to fig. 4 to 7, in some embodiments, the second lubricating oil passage 33 includes a first oil passage 331, a second oil passage 332, and oil holes 333. The first oil passage 331 is provided in the outer wall of the first wear-resistant member 31. The second oil passage 332 is provided to the inner wall of the first wear-resistant member 31. The oil holes 333 communicate the first oil passage 331 and the second oil passage 332.
Referring to fig. 5, in some embodiments, the first oil path 331 is configured to be annular. The first oil path 331 is provided on the outer wall of the first wear-resistant member 31 and surrounds the outer wall of the first wear-resistant member 31.
The first oil passage 331 and the second oil passage 332 communicate through oil holes 333. The plurality of oil holes 333 are provided at intervals along one rotation of the first oil path 331. The plurality of oil holes 333 are provided so that the lubricating oil in the first oil passage 331 more easily flows into the second oil passage 332 to lubricate the inner wall surface of the first wear-resistant member 31. The inner wall surface of the first wear-resistant member 31 is also a mating surface that mates with the outer wall surface of the second wear-resistant member 32. The lubricating oil flows to the areas where the inner wall surface of the first wear-resistant member 31 and the outer wall surface of the second wear-resistant member 32 are located, and can simultaneously lubricate the inner wall surface of the first wear-resistant member 31 and the outer wall surface of the second wear-resistant member 32.
Referring to fig. 5-7, in some embodiments, the second oil passage 332 includes a first sub-oil passage 334 and a second sub-oil passage 335. The first sub oil passage 334 includes a plurality of pieces, and each of the first sub oil passages 334 is provided at intervals in the axial direction of the first wear resistant member 31. A second sub oil path 335 is arranged between two adjacent first sub oil paths 334 of the second sub oil path 335, and the two adjacent first sub oil paths 334 of the second sub oil path 335 are communicated. The second sub oil passage 335 is specifically a spiral oil passage.
The first sub oil passage 334 and the second sub oil passage 335 are arranged together, so that the structure of the first oil passage 331 is simplified, and lubricating oil can be led to the inner walls of the first wear-resistant part 31 along the axial direction of the first wear-resistant part by only arranging one first oil passage 331.
In some embodiments, the first wear member 31 has a first oil path 331 and four oil holes 333. The four oil holes 333 are evenly distributed along the circumferential direction of the first wear member 31. The second oil passage 332 includes a first sub-oil passage 334 and a second sub-oil passage 335. The first sub oil passages 334 are three and are spaced apart from each other in the axial direction of the first wear member 31, and the distance between two adjacent first sub oil passages 334 may be equal. One of the second sub oil passages 335, and the first sub oil passages 334 communicate with each other through the second sub oil passage 335. The lubricating oil is injected through the first lubricating oil passage 21 in the link frame 2, the first lubricating oil passage 21 communicates with the first oil passage 331 in the first wear member 31, and the first oil passage 331 communicates with the first sub-oil passage 334 through the oil hole 333.
With the above-described lubricating structure, the first lubricating oil passage 21 of the connecting frame 2 communicates with the second lubricating oil passage 33 of the first wear part 31, the outer first oil passage 331 of the second lubricating oil passage 33 communicates with the inner second oil passage 332 through the radial oil holes 333, and the adjacent first sub-oil passages 334 of the second oil passage 332 communicate with each other through the inner spiral second sub-oil passage 335. By adopting the lubricating channel design, the rotating contact surface is fully lubricated, the reliable lubrication of the whole rotating structure is ensured, and the service life of the part is long.
With continued reference to fig. 3 and 4, in some embodiments, the connecting shaft 11 is provided with a positioning boss 13, the connecting frame 2 is provided with a positioning groove 22, and the positioning boss 13 and the positioning groove 22 are matched. The positioning boss 13 and the positioning groove 22 are arranged, so that the connecting shaft 11 can be installed more easily and accurately.
Referring to fig. 3 and 4, in some embodiments, the mating surfaces of the locating boss 13 and the locating recess 22 are provided with a shim 4, and the mating surfaces of the first wear part 31 and the second wear part 32 extend to the lubricating surface 42 of the shim 4. The lubricating surface 42 is remote from the central axis of the housing 12, i.e. the lubricating surface 42 faces the first wear part 31.
The part with friction is rotated between the shaft shoulder 11 of the connecting shaft and the connecting frame 2, and the annular gasket 4 with the oil duct is installed, so that the first wear-resistant part 31 is limited, and meanwhile, the abrasion of the shaft shoulder 11 of the connecting frame 2 and the connecting shaft is reduced.
The mating surfaces of the positioning boss 13 and the positioning groove 22 may also be provided with a seal ring 105 to prevent leakage of the lubricating oil.
Referring to fig. 8, in some embodiments, the lubrication surface 42 is provided with a lubrication groove 41. The oil grooves 41 are arranged substantially spirally. Because relative motion can also exist between the connecting frame 2 and the gasket 4, the lubricating oil groove 41 is arranged, the probability of dry grinding of the connecting frame 2 and the gasket 4 is effectively reduced, the abrasion of parts is slowed down, and the service life of the parts is prolonged.
Referring to fig. 3 and 4, in some embodiments, the free end of the connecting shaft 11 is provided with a lightening hole 14 to achieve an overall light weight of the electric drive wheel loader drive axle assembly.
Referring to fig. 3 and 4, in some embodiments, the electric drive wheel loader transaxle assembly further includes an end cap 5, where the end cap 5 is located outside the free end of the connecting shaft 11 and is fixedly connected to the connecting frame 2. The end cap 5 serves to close the lightening hole 14 and also makes it less prone to dust ingress inside the drive axle assembly of the electric wheel loader.
Referring to fig. 9, still other embodiments of the present invention provide an electric drive wheel loader comprising a frame 8 and an electric drive wheel loader axle assembly according to any of the aspects of the present invention, the frame 8 being fixedly attached to a mounting end 24 of the attachment frame 2.
The electric transmission wheel loader provided by the embodiment of the invention can be a large-tonnage electric transmission wheel loader. The drive chain of the electric wheel loader is as follows: the engine 9 drives the generator 10, and the generator 10 drives the motor 101. Each wheel of the electric wheel loader is provided with an electric motor 101, the electric motor 101 driving a reduction gear 102, the reduction gear 102 driving a wheel 103.
The motor 101 and the reducer 102 are mounted inside the housing 12 of the transaxle 1 of the electric wheel loader transaxle assembly.
Electric wheel loaders, otherwise known as electric wheel loaders, operate primarily in a mine. The road surface of the mining area is rugged and uneven, the vehicle body is inevitably inclined during operation, the wheels 103 slip, unsafe factors are generated, the operation efficiency is reduced, and the oil consumption is increased. Therefore, the electric transmission wheel loader is provided with the connecting frame 2, so that the drive axle 1 assembly can incline left and right along the vertical direction of the main axis of the advancing direction of the whole vehicle within a certain range, and the connecting frame 2 and the vehicle frame 8 connected with the connecting frame are kept relatively horizontal, so that the trafficability of the complex road surface of the whole vehicle is realized.
According to the electric transmission wheel loader provided by the technical scheme, the connecting frame 2 of the drive axle assembly of the electric transmission wheel loader adopts the connecting mode and is matched with the arrangement mode of the lubricating structure. In the working process of the electric transmission wheel loader, the connecting frame 2 swings left and right by taking the connecting end 23 as a swing fulcrum, and the frame 8 is installed on the connecting frame 2. In the driving process of the vehicle, the electric transmission wheel type loader driving axle assembly realizes that the wheels 103 are always in good contact with the road surface, improves the traction force of the vehicle, can effectively prevent the vehicle from tipping, can enable the driving axle 1 to swing more flexibly, can bear larger axial force, radial force and tipping moment, and improves the trafficability characteristic of a complex road surface. In addition, the connecting frame 2 is not easy to deform, break, block and other faults, and the reliability of the whole machine is high.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (18)
1. An electric drive wheel loader drive axle assembly, comprising:
a drive axle (1) comprising a connecting shaft (11);
the connecting frame (2) is positioned on the periphery of the connecting shaft (11); and
a wear assembly (3) arranged between the drive axle (1) and the connecting frame (2) for rotatable connection of the drive axle (1) and the connecting frame (2).
2. Electric drive wheel loader drive axle assembly according to claim 1, characterized in that the wear assembly (3) comprises:
the first wear-resistant piece (31) is fixed on the inner wall of the mounting hole (20) of the connecting frame (2); and
the second wear-resistant piece (32) is fixedly connected with the connecting shaft (11);
the first wear-resistant part (31) and the second wear-resistant part (32) are sleeved together and are rotatably connected.
3. Electric drive wheel loader transaxle assembly according to claim 2 wherein the first wear part (31) has an interference fit with the mounting hole (20) of the attachment frame (2).
4. Electric drive wheel loader drive axle assembly according to claim 2, characterized in that the second wear part (32) is detachably connected to the connecting shaft (11).
5. Electric drive wheel loader drive axle assembly according to claim 1, characterized in that the drive axle (1) further comprises:
a housing (12), wherein the connecting shaft (11) is fixed to a wall body of the housing (12); and the number of the connecting shafts (11) is two, and the two connecting shafts (11) are symmetrically arranged along the central axis of the shell (12).
6. Electric drive wheel loader transaxle assembly according to claim 2 wherein the connecting frame (2) is provided with a first lubrication channel (21), the first wear part (31) is provided with a second lubrication channel (33), and the first lubrication channel (21) and the second lubrication channel (33) are in communication.
7. Electric drive wheel loader drive axle assembly according to claim 6, characterized in that the second lubrication channel (33) comprises:
a first oil passage (331) provided in an outer wall of the first wear-resistant member (31);
a second oil passage (332) provided in an inner wall of the first wear-resistant member (31); and
and an oil hole (333) that communicates the first oil passage (331) and the second oil passage (332).
8. Electric drive wheel loader transaxle assembly according to claim 7 wherein the first oil passage (331) is configured as an annulus.
9. Electric drive wheel loader drive axle assembly according to claim 7, characterized in that the second oil circuit (332) comprises:
a first sub oil passage (334) including a plurality of first sub oil passages (334), each of the first sub oil passages (334) being provided at intervals in an axial direction of the first wear resistant member (31); and
and the second sub oil path (335) is arranged between two adjacent first sub oil paths (334), and the two adjacent first sub oil paths (334) are communicated by the second sub oil path (335).
10. Electric drive wheel loader drive axle assembly according to claim 2, characterized in that the connecting shaft (11) is provided with a positioning boss (13) and the connecting frame (2) is provided with a positioning groove (22), the positioning boss (13) and the positioning groove (22) cooperating.
11. Electric drive wheel loader drive axle assembly according to claim 10, characterized in that the mating surfaces of the positioning boss (13) and the positioning recess (22) are provided with a shim (4), the mating surfaces of the first wear part (31) and the second wear part (32) extending to a lubricating surface (42) of the shim (4), the lubricating surface (42) facing the first wear part (31).
12. Electric drive wheel loader drive axle assembly according to claim 11, characterized in that the lubricating surface (42) is provided with a lubrication groove (41).
13. Electric drive wheel loader transaxle assembly according to claim 1 wherein the free end of the connecting shaft (11) is provided with a lightening hole (14).
14. The electric drive wheel loader drive axle assembly of claim 1, further comprising:
and the end cover (5) is positioned on the outer side of the free end of the connecting shaft (11) and is fixedly connected with the connecting frame (2).
15. Electric drive wheel loader drive axle assembly according to claim 1, characterized in that the attachment frame (2) is configured in a V-shape.
16. Electric drive wheel loader drive axle assembly according to claim 15, characterized in that the connecting end (23) of the connecting frame (2) is connected to the drive axle (1).
17. Electric drive wheel loader drive axle assembly according to claim 15, characterized in that a pallet (6) is mounted at each mounting end (24) of the attachment frame (2), each pallet (6) being provided with a locating element (7).
18. Electric drive wheel loader characterized in that it comprises a frame (8) and an electric drive wheel loader axle assembly according to any of claims 1-17, the frame (8) being fixedly connected to the mounting end (24) of the attachment frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911138658.8A CN110761354A (en) | 2019-11-20 | 2019-11-20 | Electric drive wheel loader drive axle assembly and electric drive wheel loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911138658.8A CN110761354A (en) | 2019-11-20 | 2019-11-20 | Electric drive wheel loader drive axle assembly and electric drive wheel loader |
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| CN110761354A true CN110761354A (en) | 2020-02-07 |
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| CN201911138658.8A Pending CN110761354A (en) | 2019-11-20 | 2019-11-20 | Electric drive wheel loader drive axle assembly and electric drive wheel loader |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016931A (en) * | 2012-12-03 | 2013-04-03 | 广西柳工机械股份有限公司 | Shaft support device |
| CN203308916U (en) * | 2013-05-15 | 2013-11-27 | 浙江正盛轴瓦有限责任公司 | Multi-oil-groove bearing bush for ship |
| DE202015102623U1 (en) * | 2015-05-21 | 2015-06-22 | Eaton Corporation | loaders |
| CN205639307U (en) * | 2016-06-01 | 2016-10-12 | 宁波天胜传动件有限公司 | Shaft sleeve |
| CN205858961U (en) * | 2016-06-30 | 2017-01-04 | 比亚迪股份有限公司 | Bearing, the stub steering structure of steeraxle and fork truck |
| CN110154648A (en) * | 2019-06-28 | 2019-08-23 | 徐工集团工程机械股份有限公司科技分公司 | Vehicle drive axle and vehicle |
| CN211523345U (en) * | 2019-11-20 | 2020-09-18 | 江苏徐工工程机械研究院有限公司 | Electric drive wheel loader drive axle assembly and electric drive wheel loader |
-
2019
- 2019-11-20 CN CN201911138658.8A patent/CN110761354A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016931A (en) * | 2012-12-03 | 2013-04-03 | 广西柳工机械股份有限公司 | Shaft support device |
| CN203308916U (en) * | 2013-05-15 | 2013-11-27 | 浙江正盛轴瓦有限责任公司 | Multi-oil-groove bearing bush for ship |
| DE202015102623U1 (en) * | 2015-05-21 | 2015-06-22 | Eaton Corporation | loaders |
| CN205639307U (en) * | 2016-06-01 | 2016-10-12 | 宁波天胜传动件有限公司 | Shaft sleeve |
| CN205858961U (en) * | 2016-06-30 | 2017-01-04 | 比亚迪股份有限公司 | Bearing, the stub steering structure of steeraxle and fork truck |
| CN110154648A (en) * | 2019-06-28 | 2019-08-23 | 徐工集团工程机械股份有限公司科技分公司 | Vehicle drive axle and vehicle |
| CN211523345U (en) * | 2019-11-20 | 2020-09-18 | 江苏徐工工程机械研究院有限公司 | Electric drive wheel loader drive axle assembly and electric drive wheel loader |
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