CN217539542U - Oil seal protection structure of main speed reducer of drive axle of loader - Google Patents
Oil seal protection structure of main speed reducer of drive axle of loader Download PDFInfo
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- CN217539542U CN217539542U CN202221191640.1U CN202221191640U CN217539542U CN 217539542 U CN217539542 U CN 217539542U CN 202221191640 U CN202221191640 U CN 202221191640U CN 217539542 U CN217539542 U CN 217539542U
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Abstract
The utility model discloses a loader transaxle main reducer oil blanket protective structure, it includes input flange after improving, oil blanket, improve the sealed lid after improving, bolt, bearing frame, main reducer shell, initiative spiral bevel gear, passive spiral bevel gear, differential mechanism assembly, guide bearing, spacer, O type circle, packing ring, lock nut and dust cover; an L-shaped groove is arranged on the outer circle of the small end of the improved sealing cover, and a stop block is additionally arranged at the small end; after improvement, the input flange is provided with a small spigot; the small end of the dust cover is sleeved on the small spigot of the improved input flange, the dust cover is fixed with the improved input flange through spot welding, the large end of the dust cover is sleeved at the outer end of the L-shaped groove at the small end of the improved sealing cover, and the distance between the large end of the dust cover and the side wall and the bottom of the L-shaped groove is 1-1.5 mm; the clearance between the inner hole of the check block at the small end of the improved sealing cover and the excircle of the small end of the improved input flange is 0.5-0.8 mm. The utility model discloses simple structure is compact, the oil blanket is dustproof effectual, long service life.
Description
Technical Field
The utility model relates to a loader transaxle equipment technical field, concretely relates to loader transaxle main reducer oil blanket protective structure.
Background
As shown in fig. 1, the main reducer assembly of the drive axle of the loader in the prior art comprises a modified front input flange 1, an oil seal 2, a modified front sealing cover 3, a bolt 4, a bearing seat 5, a main reducer casing 6, a driving spiral bevel gear 7, a driven spiral bevel gear 8, a differential assembly 9, a guide bearing 10, a spacer 11, an O-ring 12, a washer 13 and a lock nut 14. The main reducer assembly with the structure has the following defects: firstly, the oil seal 2 is not provided with a dustproof device, sand and stones and the like easily enter an oil seal mounting hole of the sealing cover 3 before improvement in the working process, so that the oil seal 2 fails too early; secondly, in the gas testing process after the assembly of the drive axle is completed, because the oil seal 2 has no protective measures, the oil seal 2 is easy to shift to the input flange side, so that the oil seal 2 fails prematurely.
Disclosure of Invention
The utility model aims at providing a simple structure is compact, the dustproof effectual, the long service life's of oil blanket main reducer oil blanket protective structure of loader transaxle.
In order to achieve the purpose, the utility model discloses loader transaxle main reducer oil blanket protective structure includes input flange 15 after improving, oil blanket 2, sealed lid 17 after improving, bolt 4, bearing frame 5, main reducer shell 6, initiative spiral bevel gear 7, passive spiral bevel gear 8, differential mechanism assembly 9, guide bearing 10, spacer 11, O type circle 12, packing ring 13, lock nut 14 and dust cover 16; the outer circle of the small end of the improved rear sealing cover 17 is provided with an L-shaped groove 17-1, and the small end is additionally provided with a stop block 17-2; the improved input flange 15 is provided with a small spigot 15-1; the small end of the dust cover 16 is sleeved on the small spigot 15-1 of the improved input flange 15, the dust cover 16 is fixed with the improved input flange 15 in a spot welding mode, the large end of the dust cover 16 is sleeved at the outer end of the L-shaped groove 17-1 of the small end of the improved sealing cover 17, and the distance between the large end of the dust cover 16 and the side wall and the bottom of the L-shaped groove 17-1 is 1-1.5 mm; the clearance between the inner hole of the check block 17-2 at the small end of the improved sealing cover 17 and the excircle at the small end of the improved input flange 15 is 0.5-0.8 mm.
The loader transaxle main reducer oil blanket protective structure of above-mentioned structure changes through the structure with sealed lid to increase the dust cover, have following technical characterstic and beneficial effect:
1. by additionally arranging the L-shaped groove 17-1 on the improved sealing cover 17 and additionally arranging the dust cover 16, the contact between external sand and stone and the oil seal 2 can be effectively avoided, and the service life of the oil seal is prolonged.
2. By adding the stop block 17-2 on the improved rear sealing cover 17, the problem that the oil seal 2 is easy to displace towards the input flange side to cause premature failure of the oil seal 2 because the oil seal 2 has no protective measures in the gas testing process of the drive axle can be effectively prevented; in addition, the clearance between the inner hole of the stop block 17-2 and the outer circle of the small end of the improved input flange 15 is small, and the dustproof effect can be further improved.
Drawings
Fig. 1 is a schematic main sectional view of an oil seal protection structure of a main speed reducer of a drive axle of a loader in the prior art.
Fig. 2 is the main schematic sectional view of the main reducer oil seal protection structure of the loader drive axle of the utility model.
Figure 3 is a schematic cross-sectional view of the modified rear sealing cover of figure 2.
Fig. 4 is a schematic cross-sectional view of the modified input flange of fig. 2.
Reference numerals: the device comprises an improved front input flange 1, an oil seal 2, an improved front sealing cover 3, a bolt 4, a bearing seat 5, a main speed reducer shell 6, a driving spiral bevel gear 7, a driven spiral bevel gear 8, a differential assembly 9, a guide bearing 10, a spacer bush 11, an O-shaped ring 12, a gasket 13, a locking nut 14, an improved rear input flange 15, a small spigot 15-1, a dustproof cover 16, an improved rear sealing cover 17, an L-shaped groove 17-1 and a stop block 17-2.
Detailed Description
The following describes the oil seal protection structure of the main speed reducer of the drive axle of the loader in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2-4, the oil seal protection structure of the main reducer of the loader drive axle of the present invention includes an improved rear input flange 15, an oil seal 2, an improved rear sealing cover 17, a bolt 4, a bearing seat 5, a main reducer casing 6, a driving spiral bevel gear 7, a driven spiral bevel gear 8, a differential assembly 9, a guide bearing 10, a spacer 11, an O-ring 12, a washer 13, a lock nut 14, and a dust cover 16; an L-shaped groove 17-1 is formed in the outer circle of the small end of the improved rear sealing cover 17, and a stop block 17-2 is additionally arranged at the small end; the improved input flange 15 is provided with a small spigot 15-1; the small end of the dust cover 16 is sleeved on the small spigot 15-1 of the improved input flange 15, the dust cover 16 is fixed with the improved input flange 15 in a spot welding mode, the large end of the dust cover 16 is sleeved at the outer end of the L-shaped groove 17-1 of the small end of the improved sealing cover 17, and gaps between the large end of the dust cover and the side wall and the bottom of the L-shaped groove 17-1 are 1-1.5 mm; the clearance between the inner hole of the stop block 17-2 at the small end of the improved sealing cover 17 and the outer circle of the small end of the improved input flange 15 is 0.5-0.8 mm.
In the working process of the loader, the improved input flange 15 is horizontal to the ground, the large end of the dust cover 16 is sleeved on the L-shaped groove 17-1 of the improved sealing cover 17, and the improved input flange 15 and the dust cover 16 are in a high-speed rotating state when the loader works, so that small sand and stones can be effectively prevented from contacting the oil seal 2 when the loader works; the new dog 17-2 that increases on the sealed lid 17 after the improvement can protect oil blanket 2 not shifting in the process of trying the gas, still can further play dustproof effect, and the better protection oil blanket 2 does not receive service environment's interference to cause premature failure, promotes the quality of transaxle.
Claims (1)
1. The utility model provides a loader transaxle main reducer oil blanket protective structure, characterized by: the device comprises an improved input flange (15), an oil seal (2), an improved rear sealing cover (17), bolts (4), a bearing seat (5), a main speed reducer shell (6), a driving spiral bevel gear (7), a driven spiral bevel gear (8), a differential mechanism assembly (9), a guide bearing (10), a spacer bush (11), an O-shaped ring (12), a gasket (13), a locking nut (14) and a dust cover (16); an L-shaped groove (17-1) is formed in the outer circle of the small end of the improved rear sealing cover (17), and a stop block (17-2) is additionally arranged at the small end; a small spigot (15-1) is arranged on the improved input flange (15); the small end of the dust cover (16) is sleeved on the small spigot (15-1) of the improved input flange (15), the dust cover (16) is fixed with the improved input flange (15) in a spot welding mode, the large end of the dust cover (16) is sleeved at the outer end of the L-shaped groove (17-1) of the small end of the improved sealing cover (17), and gaps between the large end of the dust cover and the side wall and the bottom of the L-shaped groove (17-1) are 1-1.5 mm; the clearance between the inner hole of the stop block (17-2) at the small end of the improved rear sealing cover (17) and the outer circle of the small end of the improved input flange (15) is 0.5-0.8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221191640.1U CN217539542U (en) | 2022-05-18 | 2022-05-18 | Oil seal protection structure of main speed reducer of drive axle of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221191640.1U CN217539542U (en) | 2022-05-18 | 2022-05-18 | Oil seal protection structure of main speed reducer of drive axle of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539542U true CN217539542U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221191640.1U Active CN217539542U (en) | 2022-05-18 | 2022-05-18 | Oil seal protection structure of main speed reducer of drive axle of loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539542U (en) |
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2022
- 2022-05-18 CN CN202221191640.1U patent/CN217539542U/en active Active
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