CN214248228U - Drive axle main transmission assembly, bracket assembly and engineering machinery - Google Patents
Drive axle main transmission assembly, bracket assembly and engineering machinery Download PDFInfo
- Publication number
- CN214248228U CN214248228U CN202022859822.9U CN202022859822U CN214248228U CN 214248228 U CN214248228 U CN 214248228U CN 202022859822 U CN202022859822 U CN 202022859822U CN 214248228 U CN214248228 U CN 214248228U
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- bearing
- bracket
- assembly
- bearing seat
- oil seal
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 32
- 239000003921 oil Substances 0.000 claims description 55
- 239000010687 lubricating oil Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to an engineering machinery drive axle main transmission bracket assembly, in order to solve the poor problem of the leakproofness of the existing engineering machinery drive axle main transmission assembly, the utility model constructs an engineering machinery drive axle main transmission bracket assembly, which is characterized in that the main transmission bracket assembly comprises a bracket and a bearing seat fixedly arranged at the end part of the bracket, the bearing seat is of an integral structure, and an oil seal installation position, a first bearing installation position and a second bearing installation position are axially and sequentially arranged in a transmission hole; the oil seal mounting position is located at the end of the transmission hole of the bearing seat, and the first bearing mounting position is adjacent to the oil seal mounting position. The utility model discloses in, bearing installation position and oil blanket installation position set up in the bearing frame of a body structure, can guarantee the axiality of oil blanket installation position and bearing installation position well when manufacturing, improve the leakproofness of oil blanket.
Description
Technical Field
The utility model relates to a drive disk assembly, more specifically say, relate to a transaxle final drive assembly and bracket assembly and engineering machine tool.
Background
The engineering machinery drive axle main transmission assembly comprises a bracket component, a differential mechanism arranged on the bracket, a driven spiral bevel gear fixed on a differential mechanism shell, and a driving spiral bevel gear rotatably arranged on the bracket component through a bearing.
The existing bracket component comprises a bracket, a bearing seat, an oil seal seat and other components. The oil seal seat and the bearing seat are sequentially and fixedly arranged in a transmission hole of the bracket, and the bearing seat and the oil seal seat are two assembly parts, so that the coaxiality of a bearing position and an oil seal position after assembly cannot be met, and the risk of oil leakage exists; the number of parts is large, and the assembly efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a transaxle final drive assembly and bracket assembly and engineering machine tool that sealing performance is good.
The utility model discloses a realize that the technical scheme of its purpose is like: a main transmission bracket assembly of a drive axle is constructed and is characterized by comprising a bracket and a bearing seat fixedly arranged at the end part of the bracket, wherein the bearing seat is of an integrated structure, and an oil seal mounting position, a first bearing mounting position and a second bearing mounting position are axially and sequentially arranged in a transmission hole of the bearing seat; the oil seal mounting position is located at the end of the transmission hole of the bearing seat, and the first bearing mounting position is adjacent to the oil seal mounting position. The utility model discloses in, bearing installation position and oil blanket installation position set up in the bearing frame of a body structure, can guarantee the axiality of oil blanket installation position and bearing installation position well when manufacturing, improve the leakproofness of oil blanket.
In the drive axle main transmission bracket assembly, a first lubricating oil channel communicated with spaces at two ends of the second bearing mounting position is arranged in the shell of the bearing seat.
In the drive axle main transmission bracket assembly, a second lubricating oil channel is arranged in a shell of the bearing seat, one end of the second lubricating oil channel is communicated with a space between the first bearing installation position and the oil seal installation position, and the other end of the second lubricating oil channel is communicated with a space on one side of the second bearing installation position far away from the first bearing installation position.
In the drive axle main transmission bracket assembly, a third lubricating oil channel communicated with spaces at two ends of the first bearing mounting position is arranged in the shell of the bearing seat.
In the drive axle main transmission bracket assembly, an annular limiting step is arranged in the transmission hole of the bearing seat and between the first bearing installation position and the second bearing installation position.
In the drive axle main transmission bracket assembly, the oil seal mounting position, the first bearing mounting position and the second bearing mounting position are all located outside the bracket, and the second bearing seat is located inside the bracket.
The utility model discloses a realize that the technical scheme of its purpose is like: constructing a drive axle main transmission assembly, which comprises a differential mechanism, a driving spiral bevel gear and a driven spiral bevel gear, wherein the driving spiral bevel gear and the driven spiral bevel gear are meshed with each other; the differential is rotationally mounted on the bracket, and the driven spiral bevel gear is fixedly mounted on the differential shell; the driving spiral bevel gear is rotatably arranged in a transmission hole of the bearing seat through a first bearing and a second bearing which are respectively arranged at a first bearing mounting position and a second bearing mounting position; and an oil seal is arranged at the oil seal mounting position.
In the drive axle main transmission assembly, the first bearing and the second bearing are tapered roller bearings, and the large ends of the tapered rollers of the two bearings face back to back.
In the drive axle main transmission assembly, the bracket is provided with a second bearing seat which is integrated with the bracket and is coaxially arranged with the bearing seat, the second bearing seat is positioned in the bracket, and the gear end of the driving spiral bevel gear is rotationally connected with the second bearing seat through a third bearing. The third bearing is a cylindrical roller bearing.
The utility model discloses a realize that the technical scheme of its purpose is like: the construction machine is characterized by comprising the drive axle main transmission assembly, and the construction machine is a loader, a tire-driven road roller and the like.
Compared with the prior art, the utility model discloses in, bearing installation position sets up in the bearing frame of a body structure with oil blanket installation position, can guarantee the axiality of oil blanket installation position and bearing installation position well when manufacturing, improves the leakproofness of oil blanket. The lubricating oil channel is arranged in the bearing seat, so that the lubricating and cooling effects on the bearing can be realized, and the service life of the oil seal and the bearing can be prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the main transmission bracket assembly of the engineering mechanical drive axle of the present invention.
Fig. 2 is a schematic structural diagram of the main transmission assembly of the engineering mechanical drive axle of the present invention.
Part names and serial numbers in the figure:
the device comprises a bracket 10, a second bearing seat 11, a third bearing 12, a bearing seat 20, an oil seal mounting position 21, a first bearing mounting position 22, a second bearing mounting position 23, a first lubricating oil channel 24, a second lubricating oil channel 25, a third lubricating oil channel 26, an annular limiting step 27, a connecting bolt 28, a differential 30, a driven spiral bevel gear 31, a driving spiral bevel gear 32, a connecting sleeve 33, an oil seal 34, a first bearing 35 and a second bearing 36.
Detailed Description
The following description of the embodiments refers to the accompanying drawings.
As shown in fig. 1, the bracket assembly in the present embodiment is mainly used for a drive axle main transmission of a construction machine such as a loader, and includes a bracket 10 and a bearing seat 20 fixedly installed at an end of the bracket. One end of the bearing seat 20 is provided with a flange, and the flange is fixedly connected with the end face of the bracket 10 through a bolt 28.
The bearing seat 20 is of an integrated structure, and an oil seal mounting position 21, a first bearing mounting position 22 and a second bearing mounting position 23 are axially and sequentially arranged in a transmission hole of the bearing seat; the oil seal mounting position 21 is located at the end of the drive hole of the bearing seat 20, and the first bearing mounting position 22 is adjacent to the oil seal mounting position 21.
A first lubrication oil passage 24, a second lubrication oil passage 25, and a third lubrication oil passage 26 in the housing of the bearing housing 20. Wherein the first lubricating oil passage 24 communicates with spaces at both ends of the second bearing installation site 23. One end of the second lubricating oil passage 25 communicates with a space between the first bearing mounting position 22 and the oil seal mounting position 21, and the other end of the second lubricating oil passage 25 communicates with a space on the side of the second bearing mounting position 23 away from the first bearing mounting position 22. Both ends of the third lubricating oil passage 26 communicate with spaces at both ends of the first bearing installation site 22.
An annular limiting step 27 is arranged in the transmission hole of the bearing seat 20 and is positioned between the first bearing mounting position 22 and the second bearing mounting position 23 in an isolation mode. The bracket 10 is provided with a second bearing seat 11 which is integrated with the bracket and is coaxially arranged with the bearing seat 20, and the second bearing seat 11 is positioned in the bracket. The oil seal mounting location 21, the first bearing mounting location 22 and the second bearing mounting location 23 are all located outside the bracket. Most of the structure of the bearing housing 20 is located outside the bracket, which simplifies the structure of the bracket 10 and reduces the manufacturing effort of the bracket.
The main transmission assembly of the engineering machinery drive axle is shown in fig. 2, and comprises the bracket assembly, a differential 30, a driving spiral bevel gear 32 and a driven spiral bevel gear 31 which are meshed with each other; the differential 30 is rotationally arranged on the bracket 10, and the driven spiral bevel gear 31 is fixedly arranged on a shell of the differential 30; the driving spiral bevel gear 32 is rotatably mounted in the transmission hole of the bearing seat 20 through a first bearing 35 and a second bearing 36 respectively mounted at a first bearing mounting position and a second bearing mounting position; the gear end of the driving spiral bevel gear 32 is rotatably connected with the second bearing seat through a third bearing 12, and the third bearing 121 is a cylindrical roller bearing.
The spline end of the driving spiral bevel gear 32 is in spline connection with a connecting sleeve 33, an oil seal 34 is installed at the oil seal installation position, and the connecting sleeve 33 limits the oil seal 34. The first bearing 35 and the second bearing 36 are tapered roller bearings, and the large ends of the tapered rollers of the two bearings face away from each other. The tapered roller bearing has the effect of bearing axial load, the first lubricating oil channel 24 has the effect of conveying lubricating oil to a gap between the first bearing 35 and the second bearing 36, so that the first bearing 35 and the second bearing 36 are sufficiently lubricated, the third lubricating oil channel 26 has the effect of balancing the oil pressure of oil in gaps at two ends of the first bearing 35, the second lubricating oil channel 25 has the effect of guiding the oil in the gap between the oil seal 34 and the first bearing 35 to a cavity on the bracket for mounting the differential 30, and the phenomenon that the oil leakage and the premature aging of the oil seal 34 are caused by overhigh oil pressure and temperature at the inner side of the oil seal 34 is avoided.
In this embodiment, bearing installation position and oil blanket installation position set up in the bearing frame of body structure, can guarantee the axiality of oil blanket installation position and bearing installation position well when manufacturing, improve the leakproofness of oil blanket. The lubricating oil channel is arranged in the bearing seat, so that the lubricating and cooling effects on the bearing can be realized, and the service life of the oil seal and the bearing can be prolonged.
Claims (10)
1. A drive axle main transmission bracket assembly is characterized by comprising a bracket and a bearing seat fixedly arranged at the end part of the bracket, wherein the bearing seat is of an integrated structure, and an oil seal mounting position, a first bearing mounting position and a second bearing mounting position are axially and sequentially arranged in a transmission hole of the bearing seat; the oil seal mounting position is located at the end of the transmission hole of the bearing seat, and the first bearing mounting position is adjacent to the oil seal mounting position.
2. The main drive carrier assembly of claim 1, wherein the housing of the bearing seat is provided with a first oil passage communicating with the spaces at the two ends of the second bearing installation site.
3. The transaxle main drive bracket assembly of claim 2 wherein a second oil gallery is provided in the housing of the bearing housing, one end of the second oil gallery communicating with the space between the first bearing mounting location and the oil seal mounting location, and the other end of the second oil gallery communicating with the space on the side of the second bearing mounting location remote from the first bearing mounting location.
4. The main drive bracket assembly of the drive axle according to claim 2 or 3, characterized in that a third lubricating oil passage communicating with spaces at both ends of the first bearing mounting position is provided in the housing of the bearing seat.
5. The transaxle main drive carrier assembly of claim 4 wherein the oil seal mounting location, first bearing mounting location and second bearing mounting location are external to the carrier.
6. A drive axle main transmission assembly comprises a differential, a driving spiral bevel gear and a driven spiral bevel gear which are meshed with each other; a drive axle final drive carrier assembly as defined in any of claims 1 to 5, said differential being rotatably mounted on said carrier, said driven helical bevel gear being fixedly mounted on said differential housing; the driving spiral bevel gear is rotatably installed in a transmission hole of the bearing seat through a first bearing and a second bearing which are respectively installed at a first bearing installation position and a second bearing installation position, and an oil seal is installed at the oil seal installation position.
7. The transaxle main drive assembly of claim 6 wherein the first and second bearings are tapered roller bearings and the tapered rollers of the bearings have large ends that face away from each other.
8. The main drive axle assembly according to claim 6 or 7, wherein the bracket is provided with a second bearing seat which is integrated with the bracket and is coaxially arranged with the bearing seat, the second bearing seat is located inside the bracket, and the gear end of the driving helical bevel gear is rotatably connected with the second bearing seat through a third bearing.
9. The transaxle main drive assembly of claim 8 wherein the third bearing is a cylindrical roller bearing.
10. A work machine characterised by a transaxle main drive assembly of any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022859822.9U CN214248228U (en) | 2020-12-03 | 2020-12-03 | Drive axle main transmission assembly, bracket assembly and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022859822.9U CN214248228U (en) | 2020-12-03 | 2020-12-03 | Drive axle main transmission assembly, bracket assembly and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214248228U true CN214248228U (en) | 2021-09-21 |
Family
ID=77735762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022859822.9U Active CN214248228U (en) | 2020-12-03 | 2020-12-03 | Drive axle main transmission assembly, bracket assembly and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214248228U (en) |
-
2020
- 2020-12-03 CN CN202022859822.9U patent/CN214248228U/en active Active
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| GR01 | Patent grant |