CN220163586U - Tractor driving axle wheel limit structure convenient to assembly - Google Patents
Tractor driving axle wheel limit structure convenient to assembly Download PDFInfo
- Publication number
- CN220163586U CN220163586U CN202321935036.XU CN202321935036U CN220163586U CN 220163586 U CN220163586 U CN 220163586U CN 202321935036 U CN202321935036 U CN 202321935036U CN 220163586 U CN220163586 U CN 220163586U
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- Prior art keywords
- hub
- assembly
- shaft
- oil seal
- driving shaft
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- 238000007789 sealing Methods 0.000 claims abstract description 33
- 230000003373 anti-fouling effect Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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Abstract
The utility model discloses a tractor driving axle wheel edge structure convenient to assemble, which comprises a main reduction box assembly, a bridge pipe assembly, a driving shaft and a hub, wherein the main reduction box assembly comprises an outer shell, the bridge pipe assembly comprises an outer tube body, the hub is rotatably arranged at the shaft end of the driving shaft, the outer shell is directly assembled and connected with the outer tube body, a first sealing component and a second sealing component are respectively correspondingly arranged between the shaft end of the driving shaft and the inner end and the outer end of the hub, and the gaps between the shaft end of the driving shaft and the inner end and the outer end of the hub are respectively sealed. According to the utility model, the main reduction box assembly is directly assembled and connected with the axle tube assembly, so that the assembly mode is optimized on the basis of not affecting the driving performance of the driving axle of the tractor, the assembly efficiency is improved, and the product quality is improved; in addition, sealing parts are respectively arranged between the shaft end of the driving shaft and the inner and outer ends of the hub to form a perfect wheel edge sealing structure, so that the dustproof and antifouling performances are improved, and the service life of the driving axle of the tractor is ensured.
Description
Technical Field
The utility model relates to the technical field of tractor drive axles, in particular to a tractor drive axle wheel edge structure convenient to assemble.
Background
The traction vehicle drive axle is one of the main components in the whole vehicle transmission system, bears the driving task in the movement process, and transmits torque force to the half axle by utilizing the main reduction box assembly in the axle and transmits the torque force to the mechanism of the driving wheel so as to realize the driving of the whole vehicle. At present, a drive axle generally consists of a main speed reducer, a differential, a wheel transmission device, a drive axle housing and the like, and bears vertical force, longitudinal force and transverse force, braking moment and reaction force which act between a road surface and a frame or a vehicle body besides bearing vertical load of the vehicle. Therefore, reasonable structural design of the drive axle is directly related to the quality of the service performance of the whole vehicle, and the method has very important significance for improving the quality of the whole vehicle, prolonging the service life of the forklift and improving the service efficiency of the tractor.
In the existing forklift drive axle structure, interference fit is usually adopted between the axle tube assembly and the main reduction gear box assembly, and the axle tube assembly and the main reduction gear box assembly are assembled in a pressing mode by means of a thermal expansion and contraction principle, so that the assembly of the axle tube assembly and the main reduction gear box assembly is achieved. However, in the installation process, the operation is complex, potential safety hazards exist, the product quality is affected, and the later maintenance of the product is not facilitated.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings in the prior art, and provides a tractor driving axle wheel edge structure convenient to assemble, which can optimize the assembly mode on the basis of not influencing the driving performance of a tractor driving axle so as to improve the assembly efficiency and the product quality; and moreover, a perfect wheel edge sealing structure can be provided, so that the dustproof and antifouling performances are improved, and the service life of the tractor drive axle is ensured.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a tractor transaxle wheel limit structure convenient to assembly, including main reduction box assembly, bridge pipe assembly, drive shaft and wheel hub, main reduction box assembly including the shell body, bridge pipe assembly is including outer body, wheel hub rotate install in the axle head of drive shaft, its characterized in that: the outer shell is directly assembled and connected with the outer tube, a first sealing component is arranged between the shaft end of the driving shaft and the inner end of the hub and used for sealing a gap between the shaft end of the driving shaft and the inner end of the hub, and a second sealing component is arranged between the shaft end of the driving shaft and the outer end of the hub and used for sealing a gap between the shaft end of the driving shaft and the outer end of the hub.
Furthermore, the assembly ends of the outer shell and the outer tube are fixedly connected with flanges, and the two corresponding flanges are fixedly connected through bolts.
Further, the inner end of the hub is rotatably mounted at the shaft end of the driving shaft through a first tapered roller bearing, and the outer end of the hub is rotatably mounted at the shaft end of the driving shaft through a second tapered roller bearing.
Further, the first sealing component comprises a first bushing, a first oil seal and an oil seal retainer ring, the first bushing is sleeved on the shaft end of the driving shaft and located on the inner side of the first tapered roller bearing, the first oil seal and the oil seal retainer ring are sleeved on the outer portion of the first bushing, and the oil seal retainer ring is close to the first tapered roller bearing.
Further, the outer edges of the first oil seal and the oil seal retainer ring are abutted against the inner wall of the inner end of the hub.
Further, the second sealing component comprises a second bushing and a second oil seal, the second bushing is sleeved at the shaft end of the driving shaft and is positioned at the outer side of the second tapered roller bearing, and the second oil seal is sleeved at the outer part of the second bushing.
Further, the outer edge of the second oil seal is abutted against the inner wall of the outer end of the hub.
Furthermore, an O-shaped sealing ring is arranged between the second bushing and the matching surface of the shaft end of the driving shaft.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the main reduction box assembly is directly assembled and connected with the axle tube assembly, so that the assembly mode is optimized on the basis of not affecting the driving performance of the driving axle of the tractor, the assembly efficiency is improved, and the product quality is improved; in addition, sealing parts are respectively arranged between the shaft end of the driving shaft and the inner and outer ends of the hub to form a perfect wheel edge sealing structure, so that the dustproof and antifouling performances are improved, and the service life of the driving axle of the tractor is ensured.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of a partial structure of the present utility model.
Fig. 3 is an enlarged schematic view of the structure of the portion a in fig. 2.
Fig. 4 is an enlarged schematic view of the structure of the portion B in fig. 2.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a tractor driving axle wheel edge structure convenient to assemble comprises a main reduction box assembly 1, a bridge pipe assembly 2, a driving shaft 3 and a hub 4, wherein the main reduction box assembly 1 comprises an outer shell 11, the bridge pipe assembly 2 comprises an outer tube 21, the hub 4 is rotatably arranged at the shaft end of the driving shaft 3, the outer shell 11 is directly assembled and connected with the outer tube 21, a first sealing part 5 is arranged between the shaft end of the driving shaft 3 and the inner end of the hub 4 and used for sealing a gap between the shaft end of the driving shaft 3 and the inner end of the hub 4, and a second sealing part 6 is arranged between the shaft end of the driving shaft 3 and the outer end of the hub 4 and used for sealing a gap between the shaft end of the driving shaft 3 and the outer end of the hub 4.
In the utility model, the assembly ends of the outer shell 11 and the outer tube 21 are fixedly connected with flanges 7, and the two corresponding flanges are fixedly connected through bolts 8.
Therefore, the outer shell 11 and the outer tube 21 are fixedly connected through the bolts 8 by fixing the connecting flanges 7 at the assembly ends of the outer shell 11 and the outer tube 21 respectively, so that the direct assembly connection of the outer shell 11 and the outer tube 21 is realized, namely the direct assembly connection of the main reduction gearbox assembly 1 and the axle tube assembly 2 is realized, the assembly mode can be optimized on the basis that the driving performance of a tractor driving axle is not influenced, the assembly efficiency is improved, and the product quality is improved.
In the utility model, the inner end of the hub 4 is rotatably mounted at the shaft end of the driving shaft 3 through a first tapered roller bearing 9, and the outer end of the hub 4 is rotatably mounted at the shaft end of the driving shaft 3 through a second tapered roller bearing 10.
Thereby, the hub 4 is rotatably mounted at the shaft end of the drive shaft 3, and the stability of the hub 4 in operation can be improved by adopting two bearings.
In the utility model, the first sealing part 5 comprises a first bushing 51, a first oil seal 52 and an oil seal retainer ring 53, wherein the first bushing 51 is sleeved at the shaft end of the driving shaft 3 and is positioned at the inner side of the first tapered roller bearing 9, the first oil seal 52 and the oil seal retainer ring 53 are sleeved outside the first bushing 51, and the oil seal retainer ring 53 is close to the first tapered roller bearing 9.
Further, the outer edges of the first oil seal 52 and the oil seal retainer 53 are abutted against the inner wall of the inner end of the hub 4.
Therefore, the first bushing 51, the first oil seal 52 and the oil seal retainer ring 53 are arranged, so that a large gap between the shaft end of the driving shaft 3 and the inner end of the hub 4 can be sealed, and the first bushing 51, the first oil seal 52 and the oil seal retainer ring 53 are integrally positioned on the inner side of the first tapered roller bearing 9, so that the effects of dust prevention, rust prevention and grease leakage prevention can be well achieved, and the protection of the first tapered roller bearing 9 is facilitated.
In the present utility model, the second sealing member 6 includes a second bushing 61 and a second oil seal 62, the second bushing 61 is sleeved on the shaft end of the drive shaft 4 and is located outside the second tapered roller bearing 10, and the second oil seal 62 is sleeved outside the second bushing 61.
Further, the outer edge of the second oil seal 62 abuts against the inner wall of the outer end of the hub 4.
Thus, by providing the second bush 61 and the second oil seal 62, a small gap between the shaft end of the drive shaft 3 and the outer end of the hub 4 can be sealed, and the second bush 61 and the second oil seal 62 are integrally located outside the second tapered roller bearing 10, so that the effects of dust prevention, rust prevention and grease leakage prevention can be well achieved, and the protection of the second tapered roller bearing 10 is facilitated.
In addition, an O-ring 12 is provided between the mating surfaces of the second bushing 62 and the shaft end of the drive shaft 4, thereby further achieving a sealing effect.
The utility model is further described below with reference to the accompanying drawings:
according to the utility model, the main reduction box assembly 1 and the axle tube assembly 2 are directly assembled and connected, namely, the flange 6 is adopted and fixedly connected through the bolts 8, so that on the basis of not affecting the driving performance of a tractor driving axle, the assembly efficiency is improved and the product quality is improved by adopting interference fit between the axle tube assembly 2 and the main reduction box assembly 1, adopting a hot jacket mode and utilizing the principle of expansion and contraction to press-fit the axle tube assembly 2 and the main reduction box assembly 1, namely, adopting a traditional assembly mode, the assembly mode can be optimized. And, flange 6 can realize dismantling, is convenient for later maintenance.
In addition, as the sealing parts are respectively arranged between the shaft end of the driving shaft 3 and the inner end and the outer end of the hub 4, namely the first sealing part 5 and the second sealing part 6 are respectively correspondingly arranged, a perfect wheel edge sealing structure can be formed, the dustproof and antifouling performances are improved, the function of protecting the bearings, namely the first tapered roller bearing 9 and the second tapered roller bearing 10 is achieved, the oil leakage risk is reduced, and the sealing device is suitable for severe working conditions, so that the service life of a tractor driving axle is ensured.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Therefore, the above description is not intended to limit the scope of the utility model; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (8)
1. The utility model provides a tractor transaxle wheel limit structure convenient to assembly, including main reduction box assembly, bridge pipe assembly, drive shaft and wheel hub, main reduction box assembly including the shell body, bridge pipe assembly is including outer body, wheel hub rotate install in the axle head of drive shaft, its characterized in that: the outer shell is directly assembled and connected with the outer tube, a first sealing component is arranged between the shaft end of the driving shaft and the inner end of the hub and used for sealing a gap between the shaft end of the driving shaft and the inner end of the hub, and a second sealing component is arranged between the shaft end of the driving shaft and the outer end of the hub and used for sealing a gap between the shaft end of the driving shaft and the outer end of the hub.
2. A tractor drive axle rim structure for easy assembly as defined by claim 1 wherein: the assembly ends of the outer shell and the outer tube are fixedly connected with flanges, and the corresponding two flanges are fixedly connected through bolts.
3. A tractor drive axle rim structure for easy assembly as defined by claim 1 wherein: the inner end of the hub is rotatably mounted at the shaft end of the driving shaft through a first tapered roller bearing, and the outer end of the hub is rotatably mounted at the shaft end of the driving shaft through a second tapered roller bearing.
4. A tractor drive axle rim structure for easy assembly as defined by claim 3 wherein: the first sealing component comprises a first bushing, a first oil seal and an oil seal retainer ring, wherein the first bushing is sleeved at the shaft end of the driving shaft and is positioned at the inner side of the first tapered roller bearing, the first oil seal and the oil seal retainer ring are sleeved at the outer part of the first bushing, and the oil seal retainer ring is close to the first tapered roller bearing.
5. A tractor drive axle rim structure for easy assembly as defined by claim 4 wherein: the outer edges of the first oil seal and the oil seal retainer ring are abutted against the inner wall of the inner end of the hub.
6. A tractor drive axle rim structure for easy assembly as defined by claim 3 wherein: the second sealing component comprises a second bushing and a second oil seal, the second bushing is sleeved at the shaft end of the driving shaft and is positioned at the outer side of the second tapered roller bearing, and the second oil seal is sleeved at the outer part of the second bushing.
7. A tractor drive axle rim structure for easy assembly as defined by claim 6 wherein: the outer edge of the second oil seal is abutted against the inner wall of the outer end of the hub.
8. A tractor drive axle rim structure for easy assembly as defined by claim 6 wherein: an O-shaped sealing ring is arranged between the second bushing and the matching surface of the shaft end of the driving shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321935036.XU CN220163586U (en) | 2023-07-21 | 2023-07-21 | Tractor driving axle wheel limit structure convenient to assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321935036.XU CN220163586U (en) | 2023-07-21 | 2023-07-21 | Tractor driving axle wheel limit structure convenient to assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220163586U true CN220163586U (en) | 2023-12-12 |
Family
ID=89063463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321935036.XU Active CN220163586U (en) | 2023-07-21 | 2023-07-21 | Tractor driving axle wheel limit structure convenient to assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220163586U (en) |
-
2023
- 2023-07-21 CN CN202321935036.XU patent/CN220163586U/en active Active
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