CN215567790U

CN215567790U - 5 ton loader gearbox oil drain structure

Info

Publication number: CN215567790U
Application number: CN202121036804.9U
Authority: CN
Inventors: 谢鹏; 任高奇; 阙智坚; 卜习燕
Original assignee: Lonking Fujian Bridge Box Co Ltd
Current assignee: Lonking Fujian Bridge Box Co Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-01-18
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses an oil drainage structure of a gearbox of a 5-ton loader, which comprises an oil bottom plate, a box body boss, a bolt, an elastic pad and a plug screw, wherein the oil bottom plate is locked on the box body through the bolt and the elastic pad; the box boss is arranged beside the arc bottom of the box body, a pipe threaded hole is drilled in the boss, and the screw plug is directly locked on the pipe threaded hole of the box boss. The utility model has simple structure, low manufacturing cost, convenient maintenance and reliable operation.

Description

5 ton loader gearbox oil drain structure

Technical Field

The utility model relates to the technical field of loader gearbox assemblies, in particular to a 5-ton loader gearbox oil drainage structure.

Background

The loader gearbox is one of the core transmission parts of the loader, and can play a role in changing the transmission ratio and expanding the torque and the rotating speed of a driving wheel. The oil discharge of fluid in current gearbox is realized after through loosening the plug screw of bottom completely, and the oil drain structure generally adopts the plug screw hole with gearbox bottom machined plane and the assembly of oil bottom plate subassembly, and the oil bottom plate subassembly is formed by oil bottom plate welding spare and plug screw assembly, and the oil discharge opening is established on the oil bottom plate welding spare, and the oil bottom plate welding spare is formed by bottom plate and plug screw support welding, accomplishes the oil drain operation through loosening the plug screw on the oil bottom plate subassembly completely. The production and installation of oil pan welds presents the following problems:

1. the welding precision requirement on the oil bottom plate screw plug support is high, the production efficiency is low, and the manufacturing cost is high;

2. the welding is not easy to control, the welding is easy to deform after welding, the size cannot be well controlled, the height of the screw plug support protruding out of the oil bottom plate is easy to control, welding slag in the threaded hole is not completely cleaned, the 'false locking' condition occurs in the assembling process, and the production efficiency is reduced;

3. due to welding high-temperature deformation, the problem that the welding position of the screw plug support and the oil bottom plate is not sealed easily occurs, and the product quality is greatly reduced.

4. Because the plug screw of oil bottom plate subassembly is in oil bottom plate one side, when the complete machine maintenance dismouting plug screw, the spanner activity space is narrower and small, has increased the degree of difficulty of dismouting.

Disclosure of Invention

The utility model aims to overcome the defects and provide the 5-ton loader gearbox oil drainage structure which is simple in structure, low in manufacturing cost, convenient to maintain and reliable in operation, so that the problems that in the prior art, the requirement on the welding precision of an oil bottom plate welding part is high, a thread hole is easy to deform after welding, and the oil bottom plate welding part is difficult to lock and not seal due to easy penetration of a welding part are solved.

In order to achieve the purpose, the oil drain structure of the gearbox of the 5-ton loader comprises an oil bottom plate, a box body boss, a bolt, an elastic pad and a plug screw, wherein the oil bottom plate is locked on the box body through the bolt and the elastic pad; the box boss is arranged beside the arc bottom of the box body, a pipe threaded hole is drilled in the boss, and the screw plug is directly locked on the pipe threaded hole of the box boss.

The 5-ton loader gearbox oil drain structure with the structure has the following technical characteristics and beneficial effects by eliminating the welding of the plug screw support in the oil bottom plate welding part:

1. the utility model cancels the oil bottom plate welding part structure in the prior art, and takes the oil bottom plate and the screw plug support welding structure, thereby reducing the welding process and the requirement, improving the production efficiency and reducing the manufacturing cost.

2. The box boss with the threaded hole is additionally arranged beside the arc bottom of the box body, the screw plug is locked on the box boss, the oil bottom plate is locked on the box body through the bolt and the elastic pad, the thread deformation and residual welding slag in the welding high temperature of the oil bottom plate and the screw plug support are reduced, the welding tightness and the false locking phenomenon of an oil bottom plate welding part are avoided, and the product quality is greatly improved.

3. The screw plug is locked on a boss of the box body beside the arc bottom of the box body, and the screw plug is screwed off to form an oil discharge port, so that the moving space for dismounting the screw plug in the maintenance process is improved.

4. The utility model has simple structure, reasonable design and convenient popularization, improves the product quality and novelty and greatly increases the practicability.

The oil drain structure of the gearbox of the 5-ton loader can well solve the problems that the welding precision of an oil bottom plate welding part is high, a threaded hole is easy to deform after welding, and the oil bottom plate welding part and a screw plug are not assembled in place and are not sealed due to the non-sealing property after welding, the production cost is reduced, and the production efficiency and the product quality are greatly improved.

Drawings

Fig. 1 is a schematic structural view of a 5-ton loader gearbox oil drain structure in a front view.

Reference numerals: the oil bottom plate comprises an oil bottom plate 1, a box body 2, a box body boss 21, a bolt 3, an elastic cushion 4 and a plug screw 5.

Detailed Description

Fig. 1 is a schematic front view of an oil drain structure of a transmission of a 5-ton loader.

The utility model discloses a gearbox oil drainage structure of a 5-ton loader, which is further described in detail by combining the attached drawings and specific embodiments.

As shown in fig. 1, the oil drain structure of the transmission case of the 5-ton loader comprises an oil bottom plate 1, a case body 2, a case body boss 21, a bolt 3, an elastic pad 4 and a plug screw 5, wherein the oil bottom plate 1 is locked on the case body 2 through the bolt 3 and the elastic pad 4; the box body boss 21 is arranged beside the arc bottom of the box body 2, a pipe threaded hole is drilled on the boss, and the screw plug 5 is directly locked on the pipe threaded hole of the box body boss 21.

The oil bottom plate 1 is locked on the box body 2 through the bolt 3 and the elastic pad 4, so that the welding process requirement of the oil bottom plate 1 is reduced, the welding defect of the connecting seat 1 is avoided, the non-tightness of a welding part and the deformation of a threaded hole are generated after welding, the problems of false locking and non-sealing of a screw plug are easily caused in the using process, the production efficiency and the product quality are improved, and the manufacturing cost is reduced; a box boss 21 is additionally arranged beside the arc bottom of the box body 2, so that the overall strength of the box body 2 is increased, and the product quality is greatly improved.

In addition, the oil bottom plate 1 is manufactured by stamping and drilling, so that the welding process requirement is reduced, the welding deformation of a threaded hole during the welding of the oil bottom plate and the defect that the oil bottom plate is not sealed after the welding are avoided, the production efficiency is improved, and the manufacturing cost is reduced.

Because the screw plug 5 is locked on the box boss 21 beside the arc bottom of the box body, the screw plug 5 is screwed off to form the oil discharge port, and the moving space for dismounting the screw plug in the maintenance process is improved. The opening that bottom half sealed through oiled-bottom plate 1 is used for sand removal when casting and convenient maintenance when using, and the gearbox can be maintained to oil-bottom plate 1 of pulling down.

Claims

1. The utility model provides a 5 ton loader gearbox oil drain structure, it includes oil bottom plate, box, bolt, bullet pad and plug screw, characterized by: the oil bottom plate is locked on the box body through bolts and elastic pads; the box boss is arranged beside the arc bottom of the box body, a pipe threaded hole is drilled in the boss, and the screw plug is directly locked on the pipe threaded hole of the box boss.