Fixed shaft type gearbox bearing assembling structure of 3-ton loading machine

Abstract

The utility model discloses a bearing assembly structure of a fixed shaft type gearbox of a 3-ton loader. The bearing assembly structure comprises a box body, a cone bearing and a shaft, the cone bearing comprises a bearing outer ring and a bearing inner ring, the bearing outer ring is assembled in a bearing hole of the box body, the bearing inner ring is assembled on a bearing position of the shaft, and the bearing outer ring and the bearing inner ring are assembled and combined; a boss is arranged at the position, corresponding to the shaft end, of the box body, and three bearing disassembling notches are evenly formed in an end opening of a bearing hole of the box body in the circumferential direction so that a bearing can be disassembled conveniently. The bearing assembling device is simple and compact in structure, low in manufacturing and maintenance cost, convenient and efficient to assemble and reliable in quality, and solves the problem of high manufacturing and mounting cost caused by many parts involved in bearing assembling in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of a loader fixed-axis type gearbox assembly, in particular to a 3-ton loader fixed-axis type gearbox bearing assembly structure. Background Art

[0002] 3-ton loaders have always been favored by customers due to their mobility and flexibility and a certain loading tonnage, and the annual market demand is also very stable. The gearbox of a 3-ton loader is the core component of the transmission system. At present, 3-ton loaders generally use a fixed-axis gearbox, which is reliable and durable, so there have not been many changes in the structure. However, with the increasingly fierce market competition, product structure optimization and cost reduction have become an inevitable trend. The existing 3-ton loader fixed-axis gearbox bearing assembly structure generally uses the method of machining the bearing hole on the box body, and then machining the end cover locking structure on the side of the box body, and then fixing the bearing with the end cover, paper gasket, bolts and spring washers; this structure involves many parts, complex structure, and high manufacturing and assembly costs. Summary of the invention

[0003] The utility model aims to provide a 3-ton loader fixed-axis gearbox bearing assembly structure with simple and compact structure, low manufacturing and maintenance costs, convenient and efficient assembly, and reliable quality, so as to solve the problem that the bearing assembly in the prior art involves many parts, which makes the manufacturing and installation costs high.

[0004] To achieve the above purpose, the utility model 3-ton loader fixed-axis gearbox bearing assembly structure includes a housing 1, a tapered bearing 2 and a shaft 3; the tapered bearing 2 includes a bearing outer ring 2.1 and a bearing inner ring 2.2, the bearing outer ring 2.1 is assembled in a bearing hole 1.2 of the housing 1, the bearing inner ring 2.2 is assembled on the bearing position of the shaft 3, and the bearing outer ring 2.1 and the bearing inner ring 2.2 are assembled and merged; the housing 1 is provided with a boss 1.1 at a corresponding position of the end of the shaft 3, and three bearing disassembly recesses 1.3 are evenly arranged at the end of the bearing hole 1.2 of the housing 1 along the circumferential direction to facilitate the disassembly of the bearing.

[0005] The above-mentioned 3-ton loader fixed-axis gearbox bearing assembly structure has the following technical features and beneficial effects through optimized design:

[0006] 1. A boss 1.1 is cast at the original end cover assembly position of the box body 1, and a bearing disassembly notch 1.3 is added at the inner wall end of the bearing hole 1.2 to ensure that the bearing can be flexibly disassembled, eliminating the end cover, paper gasket, bolts and spring gasket parts, and reducing the production and installation costs;

[0007] 2. Simple and compact structure, convenient and efficient assembly, and reliable quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1The utility model is a main sectional assembly schematic diagram of a bearing assembly structure of a fixed-axis gearbox of a 3-ton loader.

[0009] Figure 2 yes Figure 1 Schematic diagram of the right view of the middle box structure.

[0010] Figure 3 yes Figure 1 Schematic diagram of the main cross-sectional structure of the bearing hole of the middle box.

[0011] Reference numerals: housing 1, tapered bearing 2, shaft 3, boss 1.1, bearing hole 1.2, bearing disassembly recess 1.3, bearing outer ring 2.1 and bearing inner ring 2.2. DETAILED DESCRIPTION

[0012] The following is a further detailed description of the bearing assembly structure and specific implementation methods of the fixed-axis gearbox bearing assembly structure for a 3-ton loader of the utility model in conjunction with the accompanying drawings.

[0013] Figure 1-Figure 3 As shown, the bearing assembly structure of the fixed-axis gearbox of a 3-ton loader of the utility model comprises a housing 1, a tapered bearing 2 and a shaft 3; the tapered bearing 2 comprises a bearing outer ring 2.1 and a bearing inner ring 2.2, the bearing outer ring 2.1 is assembled in a bearing hole 1.2 of the housing 1, the bearing inner ring 2.2 is assembled on the bearing position of the shaft 3, and the bearing outer ring 2.1 and the bearing inner ring 2.2 are assembled and merged; the housing 1 is provided with a boss 1.1 at a corresponding position of the end of the shaft 3, and three bearing disassembly recesses 1.3 are evenly arranged at the end of the bearing hole 1.2 of the housing 1 along the circumferential direction to facilitate the disassembly of the bearing.

[0014] When assembling the tapered bearing 2, first assemble the outer ring 2.1 of the bearing into the bearing hole 1.2 of the housing 1, and assemble the inner ring 2.2 of the bearing into the bearing position of the shaft 3. When assembling the gearbox assembly, the inner and outer rings of the bearing are assembled and combined. The boss 1.1 directly cast on the housing 1 replaces the original end cover structure to form an effective closed space for the gearbox.

[0015] When disassembling the bearing outer ring 2.1, the bearing outer ring 2.1 is evenly pried out using a disassembly tool through the three bearing disassembly notches 1.3 on the housing 1.

[0016] The utility model discloses a 3-ton loader fixed-axis gearbox bearing assembly structure, which effectively solves the problem that the current bearing assembly involves many parts, resulting in high manufacturing and installation costs, and has a simple and compact structure, and is convenient and efficient to assemble.

Claims

1. A 3-ton loader fixed-axis gearbox bearing assembly structure, comprising a housing (1), a tapered bearing (2) and a shaft (3); the tapered bearing (2) comprises a bearing outer ring (2.1) and a bearing inner ring (2.2); the bearing outer ring (2.1) is assembled in a bearing hole (1.2) of the housing (1), the bearing inner ring (2.2) is assembled on a bearing position of the shaft (3), and the bearing outer ring (2.1) and the bearing inner ring (2.2) are assembled and merged; the characteristics are: The housing (1) is provided with a boss (1.1) at a position corresponding to the end of the shaft (3), and three bearing disassembly notches (1.3) are evenly arranged along the circumferential direction at the end of the bearing hole (1.2) of the housing (1) to facilitate disassembly of the bearing.

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