Sealing structure for oil inlet end cover of gearbox of 3-ton loader
By using O-ring sealing structure and flat sealant in the oil inlet end cap of the 3-ton loader gearbox, the problem of increased maintenance costs caused by paper pad sealing is solved, and the sealing effect of simple structure, convenient assembly and reliable use is achieved.
Patent Information
- Application Number
- CN202323534805.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The oil inlet end cap and large end cap of the existing 3-ton loader gearbox are sealed with paper pads, which makes it easy to damage during each repair and disassembly, increasing maintenance costs.
The O-ring sealing structure is used instead of paper pad sealing, combined with flat sealant, apply sealant to the bonding surface of the oil-injected end cap and the large end cap, and lock it with bolts and elastic pads.
A good sealing effect is achieved, while avoiding the need to replace sealing paper pads every time the repair is completed, and reducing maintenance costs.
Smart Images
Figure CN222185703U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a loader gearbox oil inlet end cover assembly, in particular to a 3-ton loader gearbox oil inlet end cover sealing structure. Background Art
[0002] In the construction machinery industry, 3-ton wheel loaders have been widely used due to their mobility and certain load capacity. With the continuous technological progress of the industry, product structure optimization and cost reduction are becoming more and more important. At present, the sealing method of the oil inlet cover and the large end cover of the 3-ton loader gearbox is generally paper gasket sealing. Its disadvantage is that the paper gasket is easily damaged when the oil inlet cover is disassembled during after-sales maintenance. Therefore, the sealing paper gasket must be replaced every time the oil inlet cover is disassembled, which increases the maintenance cost. Summary of the invention
[0003] The utility model aims to provide a 3-ton loader gearbox oil inlet cover sealing structure which has a simple and compact structure, is convenient and efficient to assemble, has a low maintenance cost and is reliable to use, so as to solve the problem that the oil inlet cover and the large end cover are sealed with a paper gasket in the prior art, and the sealing paper gasket needs to be replaced every time the oil inlet cover is disassembled for maintenance, thereby increasing the maintenance cost.
[0004] To achieve the above purpose, the utility model 3-ton loader gearbox oil inlet cover sealing structure comprises a large end cover 1, an oil inlet end cover 2, an O-ring groove 3, a bolt 4, a spring washer 5 and an O-ring 6; the front end portion of the oil passage of the oil inlet end cover 2 is provided with an O-ring groove 3; the O-ring 6 is placed in the O-ring groove 3; a circle of plane sealant 7 is evenly applied on the joint surface of the large end cover 1 and the oil inlet end cover 2, and then the large end cover 1 and the oil inlet end cover 2 are assembled and locked by the bolts 4 and the spring washer 5.
[0005] The above-mentioned 3-ton loader gearbox oil inlet cover sealing structure has the following technical features and beneficial effects by improving the oil inlet cover structure:
[0006] 1. By improving the structure of the oil inlet cover, the paper gasket seal is cancelled, and an O-ring seal is used in the gear pressure oil channel. At the same time, a small amount of flat sealant is applied to the joint surface of the oil inlet cover and the large end cover. This can not only ensure a good sealing effect, but also save maintenance costs because the paper gasket seal is cancelled and there is no need to replace the sealing paper gasket every time the oil inlet cover is disassembled for maintenance;
[0007] 2. Simple and compact structure, easy assembly and reliable use. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 The utility model is a schematic diagram of the sealing structure of the oil inlet end cover of a gearbox of a 3-ton loader.
[0009] Figure 2 yes Figure 1Schematic diagram of the cross-sectional structure along the AA axis.
[0010] Figure numerals: large end cover 1, oil inlet end cover 2, O-ring groove 3, bolt 4, spring washer 5, O-ring 6, flat sealant 7. DETAILED DESCRIPTION
[0011] The sealing structure of the oil inlet end cover of the gearbox of a 3-ton loader of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0012] Figure 1 , Figure 2 As shown, the utility model 3-ton loader gearbox oil inlet end cover sealing structure comprises a large end cover 1, an oil inlet end cover 2, an O-ring groove 3, a bolt 4, a spring washer 5 and an O-ring 6; the front end portion of the oil passage of the oil inlet end cover 2 is provided with an O-ring groove 3; the O-ring 6 is placed in the O-ring groove 3; a circle of plane sealant 7 is evenly applied on the joint surface of the large end cover 1 and the oil inlet end cover 2, and then the large end cover 1 and the oil inlet end cover 2 are assembled and locked by the bolts 4 and the spring washer 5.
[0013] During processing, an O-ring groove 3 is processed at the front end of the oil passage of the oil inlet cover 2; during assembly, the O-ring 6 is placed in the O-ring groove 3, and at the same time, a circle of flat sealant 7 is evenly applied on the joint surface of the oil inlet cover 2 and the large end cover 1, and then the oil inlet cover 2 and the large end cover 1 are assembled and locked by bolts 4 and spring washers 5, so as to ensure a good sealing effect; when reassembling the oil inlet cover during after-sales maintenance, it is only necessary to reapply an appropriate amount of flat sealant, and then assemble and restore it according to the above steps.
[0014] The utility model discloses a sealing structure for an oil inlet cover of a 3-ton loader gearbox. By improving the structure of the oil inlet cover, the paper gasket seal in the prior art is eliminated, and an O-ring seal is adopted at the gear pressure oil passage instead. Meanwhile, a small amount of flat sealant is applied to the joint surface between the oil inlet cover and the large end cover. This can ensure a good sealing effect and save maintenance costs because the paper gasket seal is eliminated and there is no need to replace the sealing paper gasket each time the oil inlet cover is disassembled for maintenance.
Claims
1. A 3-ton loader gearbox oil inlet end cover sealing structure, comprising a large end cover (1), an oil inlet end cover (2), bolts (4) and spring washers (5); characterized in that: It also includes an O-ring groove (3) and an O-ring (6); the O-ring groove (3) is provided at the front end of the oil passage of the oil inlet end cover (2); the O-ring (6) is placed in the O-ring groove (3); a circle of plane sealant (7) is evenly applied on the joint surface between the large end cover (1) and the oil inlet end cover (2), and then the large end cover (1) and the oil inlet end cover (2) are assembled and locked by bolts (4) and spring washers (5).