Gearbox oil bottom plate structure of 3-ton loader

Abstract

The utility model discloses an oil bottom plate structure of a gearbox of a 3-ton loader. The oil bottom plate structure comprises a box body, a sealing paper gasket, an oil bottom plate, a locking bolt, an elastic gasket and an oil plug, the box body, the sealing paper gasket and the oil bottom plate are locked through the locking bolt and the elastic gasket; a stamping boss is arranged on the oil bottom plate, an oil plug threaded hole is formed in the stamping boss, and the oil plug is locked in the oil plug threaded hole. The gearbox oil bottom plate is simple and compact in structure, simple in machining process, low in manufacturing and maintaining cost and reliable in quality, and solves the problems that in the prior art, a welding oil plug support structure is adopted for a gearbox oil bottom plate, the welding requirement is high, a welding seam easily leaks oil, and the manufacturing cost is high.

Description

Technical Field

[0001] The utility model relates to the technical field of a loader gearbox assembly, in particular to a gearbox oil bottom plate structure of a 3-ton loader. Background Art

[0002] With the rapid development of the domestic construction machinery industry, the competition in the construction machinery industry has become increasingly fierce. Therefore, the industry has been striving for excellence in product quality reliability and production efficiency. The gearbox is the core component of the loader transmission system. The existing 3-ton loader gearbox oil pan generally adopts a structure in which the oil plug support and the pan are welded together. The oil pan has high welding requirements during production, and the weld must not leak oil. At the same time, in order to ensure product quality, a special weld inspection process needs to be set up, resulting in high production costs. Summary of the invention

[0003] The utility model aims to provide a 3-ton loader gearbox oil bottom plate structure with simple and compact structure, simple processing technology, low manufacturing and maintenance costs and reliable quality, so as to solve the problems that the gearbox oil bottom plate of the prior art adopts a welded oil plug support structure with high welding requirements, easy oil leakage in the weld and high manufacturing cost.

[0004] To achieve the above purpose, the utility model of a 3-ton loader gearbox oil pan structure comprises a box body 1, a sealing paper gasket 2, an oil pan 3, a locking bolt 4, a spring washer 5 and an oil plug 6; the box body 1, the sealing paper gasket 2, and the oil pan 3 are locked by the locking bolt 4 and the spring washer 5; the oil pan 3 is provided with a stamping boss 3.1, and the stamping boss 3.1 is provided with an oil plug threaded hole 3.2, and the oil plug 6 is locked in the oil plug threaded hole 3.2.

[0005] The above 3-ton loader gearbox oil bottom plate structure has the following technical features and beneficial effects:

[0006] 1. By punching out a boss on the oil pan and then machining the threaded hole for the oil plug assembly on the boss, not only the welding method with high requirements in the existing technology is eliminated, the production process is simplified, and the risk of oil leakage in the weld is completely eliminated;

[0007] 2. The oil plug support is omitted, the structure is simple and compact, and the manufacturing and maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The utility model is a schematic diagram of the main assembly of the gearbox oil bottom plate structure of a 3-ton loader.

[0009] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure of area I.

[0010] Figure 3 yes Figure 1Schematic diagram of the top view of the oil bottom plate 3.

[0011] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of the middle stamping boss 3.1 and the oil plug threaded hole 3.2.

[0012] Figure numerals: box body 1, sealing paper gasket 2, oil bottom plate 3, locking bolt 4, spring washer 5, oil plug 6, stamping boss 3.1, oil plug threaded hole 3.2. DETAILED DESCRIPTION

[0013] The gearbox oil bottom plate structure of a 3-ton loader of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Figure 1-Figure 4 As shown, the utility model 3-ton loader gearbox oil pan structure comprises a box body 1, a sealing paper gasket 2, an oil pan 3, a locking bolt 4, a spring washer 5 and an oil plug 6; the box body 1, the sealing paper gasket 2, and the oil pan 3 are locked by the locking bolt 4 and the spring washer 5; the oil pan 3 is provided with a stamping boss 3.1, and the stamping boss 3.1 is provided with an oil plug threaded hole 3.2, and the oil plug 6 is locked in the oil plug threaded hole 3.2.

[0015] When the oil pan 3 is assembled and used, the sealing paper pad 2 is first placed on the oil pan 3, the oil pan 3 is locked on the box body 1 by the locking bolts 4 and the spring washers 5, and then the oil plug 6 is locked on the oil plug threaded hole 3.2 of the oil pan 3.

[0016] The utility model discloses a 3-ton loader gearbox oil bottom plate structure, adopts a stamping boss to process a threaded hole structure, eliminates a welding structure, simplifies the production process, eliminates the problem of weld oil leakage, and eliminates an oil plug support, thereby saving production costs.

Claims

1. A 3-ton loader gearbox oil pan structure, comprising a box body (1), a sealing paper gasket (2), an oil pan (3), a locking bolt (4), a spring washer (5) and an oil plug (6); the box body (1), the sealing paper gasket (2) and the oil pan (3) are locked by the locking bolt (4) and the spring washer (5); the characteristics are: The oil bottom plate (3) is provided with a stamping boss (3.1), the stamping boss (3.1) is provided with an oil plug threaded hole (3.2), and the oil plug (6) is locked in the oil plug threaded hole (3.2).

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