Loader drive axle wheel edge supporting shaft

Abstract

The utility model discloses a loading machine drive axle wheel-side supporting shaft which structurally comprises a planet carrier, a planet wheel assembly, a sun wheel, a locking nut, an inner gear ring, a hub, a rim bolt assembly, a wheel-side outer bearing, a wheel-side inner bearing, an oil seal, a brake disc, a half shaft, an axle shell, a brake caliper support and a wheel-side supporting shaft body. The brake caliper support and the wheel edge supporting shaft are welded to the axle shell, and the half shaft is arranged in an inner hole of the wheel edge supporting shaft in a sleeved mode. Four oil passing holes are drilled in the wheel edge supporting shaft and located in the root of the inner bearing installation limiting base, the starting end of each oil passing hole is arranged on the axis, the tail end of each oil passing hole is arranged on the surface of the shaft, and the oil passing holes are evenly distributed along the circumference. The inner bearing installation limiting seat is located between the inner bearing installation position and the oil seal installation position. The utility model has the advantages of simple structure, low manufacturing and maintenance cost, and long service life of the hub inner bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel side assemblies of loader drive axles, in particular to a wheel side supporting shaft of loader drive axles. Background Art

[0002] The existing wheel assembly of the loader drive axle generally consists of a planetary wheel carrier, a planetary wheel assembly, a sun wheel, a locking nut, an inner gear ring, a wheel hub, a rim bolt assembly, a wheel outer bearing, a wheel inner bearing, an oil seal, a brake disc, etc. The entire wheel assembly is fixed on the support shaft with a locking nut. The existing defects are: in actual use, due to the small roller clearance of the bearing itself, the inner bearing of the wheel is in a relatively closed space, and due to the poor fluidity of the lubricating oil, it is easy to cause local oil temperature overheating, and the bearing often burns out. Summary of the invention

[0003] The utility model aims to solve the above defects and provide a wheel side support shaft for a loader drive axle which has a simple structure, low manufacturing and maintenance costs and a long service life of the inner bearing of the wheel side.

[0004] In order to achieve the above purpose, the utility model provides a wheel side support shaft of a loader driving axle, on which an inner bearing installation limit seat 15-2, an inner bearing installation position 15-3 and an oil seal installation position 15-4 are provided, the inner bearing installation limit seat 15-2 is located between the inner bearing installation position 15-3 and the oil seal installation position 15-4, and the installation structure of the wheel side support shaft of the loader driving axle includes a planetary wheel carrier 1, a planetary wheel assembly 2, a sun gear 3, a locking nut 4, an inner gear ring 5, a wheel hub 6, a wheel rim bolt assembly 7, a wheel side outer bearing 8, a wheel hub 9, a wheel hub 10, a wheel hub 11, a wheel hub 12, a wheel hub 13, a wheel hub 14, a wheel hub 15, a wheel hub 16, a wheel hub 17, a wheel hub 18, a wheel hub 19, a wheel hub 20, a wheel hub 21, a wheel hub 22, a wheel hub 23, a wheel hub 24, a wheel hub 25, a wheel hub 26, a wheel hub 27, a wheel hub 28, a wheel hub 29, a wheel hub 30, a wheel hub 31, a wheel hub 32 Inner side bearing 9, oil seal 10, brake disc 11, half shaft 12, bridge housing 13, brake caliper bracket 14 and wheel side support shaft 15, the brake caliper bracket 14 and wheel side support shaft 15 are welded to the bridge housing 13, and the half shaft 12 is sleeved in the inner hole of the wheel side support shaft 15; four oil holes 15-1 are drilled on the wheel side support shaft 15, and the oil holes 15-1 are located at the root of the inner bearing mounting limit seat 15-2, and the starting end of each oil hole 15-1 is arranged at the axis center, and the end is arranged on the axis surface, and is evenly distributed along the circumference.

[0005] The above structure improves the structure of the wheel side support shaft 15, that is, four oil holes 15-1 are added to the wheel side support shaft 15, which effectively solves the problem of poor fluidity of the lubricating oil at the inner bearing of the wheel side, and avoids the failure of the bearing due to overburning. At the same time, drilling four oil holes 15-1 can make the wheel side support shaft do not need to rotate in a specific position during welding, and can ensure that at least two oil holes 15-1 can flow lubricating oil, which greatly improves the fluidity of the lubricating oil.

[0006] The utility model provides a wheel side support shaft for a loader driving axle, and has the following technical features and beneficial effects by improving the structure of the wheel side support shaft:

[0007] 1. The structure of the wheel side support shaft is improved, which greatly improves the fluidity of the lubricating oil at the inner bearing of the wheel side, effectively solves the problem of poor fluidity of the lubricating oil at the inner bearing of the wheel side, and avoids the failure of the bearing due to overburning.

[0008] 2. The wheel side support shaft does not need to be rotated at a specific position during welding, which improves the convenience of workpiece processing;

[0009] 3. Simple and compact structure, low manufacturing and maintenance costs, and long bearing service life; BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a main sectional structural schematic diagram of a wheel side support shaft installation structure of a loader driving axle.

[0011] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the middle wheel side support shaft.

[0012] Figure markings: planetary wheel carrier 1, planetary wheel assembly 2, sun gear 3, locking nut 4, inner gear ring 5, wheel hub 6, rim bolt assembly 7, wheel side outer bearing 8, wheel side inner bearing 9, oil seal 10, brake disc 11, half shaft 12, bridge housing 13, brake caliper bracket 14, wheel side support shaft 15, oil hole 15-1, inner bearing mounting limit seat 15-2, inner bearing mounting position 15-3, oil seal mounting position 15-4. DETAILED DESCRIPTION

[0013] The specific implementation of the wheel side support shaft of a loader drive axle of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0014] Figure 1-Figure 2As shown, the utility model is a wheel side support shaft of a loader driving axle, on which an inner bearing installation limit seat 15-2, an inner bearing installation position 15-3 and an oil seal installation position 15-4 are provided, the inner bearing installation limit seat 15-2 is located between the inner bearing installation position 15-3 and the oil seal installation position 15-4, and the installation structure of the wheel side support shaft of the loader driving axle includes a planetary wheel carrier 1, a planetary wheel assembly 2, a sun gear 3, a locking nut 4, an inner gear ring 5, a wheel hub 6, a wheel rim bolt assembly 7, a wheel side outer bearing 8, and a wheel side inner shaft Bearing 9, oil seal 10, brake disc 11, half shaft 12, bridge housing 13, brake caliper bracket 14 and wheel side support shaft 15, the brake caliper bracket 14 and wheel side support shaft 15 are welded to the bridge housing 13, and the half shaft 12 is sleeved in the inner hole of the wheel side support shaft 15; four oil holes 15-1 are drilled on the wheel side support shaft 15, and the oil holes 15-1 are located at the root of the inner bearing mounting limit seat 15-2, and the starting end of each oil hole 15-1 is arranged at the axis center, and the end is arranged on the axis surface, and is evenly distributed along the circumference.

Claims

1. A wheel side support shaft of a loader driving axle, on which an inner bearing installation limit seat (15-2), an inner bearing installation position (15-3) and an oil seal installation position (15-4) are provided, wherein the inner bearing installation limit seat (15-2) is located between the inner bearing installation position (15-3) and the oil seal installation position (15-4), and the installation structure of the wheel side support shaft of the loader driving axle comprises a planetary wheel carrier (1), a planetary wheel assembly (2), a sun gear (3), a locking nut (4), an inner gear ring (5), a wheel hub (6), a wheel rim bolt assembly (7), a wheel side outer bearing (8), a wheel side inner bearing (9), an oil seal (10), a brake disc (11), a half shaft (12), a bridge housing (13), a brake caliper bracket (14) and a wheel side support shaft (15), wherein the brake caliper bracket (14) and the wheel side support shaft (15) are welded to the bridge housing (13), and the half shaft (12) is sleeved in the inner hole of the wheel side support shaft (15); wherein: Four oil holes (15-1) are drilled on the wheel side support shaft (15). The oil holes (15-1) are located at the root of the inner bearing installation limit seat (15-2). The starting end of each oil hole (15-1) is arranged at the axis center and the end is arranged on the axis surface, and the oil holes (15-1) are evenly distributed along the circumference.

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