A multi-stage combined compensation type rotary shaft sealing device
By using a multi-stage combined compensation rotary shaft seal device, which combines wedge seals, soft packing seals, and nitrogen seals, the problem of rapid wear of existing shaft end seals has been solved, achieving a long service life and high reliability sealing effect.
CN224550769UActive Publication Date: 2026-07-24LANZHOU TIANDA HUARUI ENVIRONMENTAL ENG TECH CO LTD
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202522467476.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-11-21
AI Technical Summary
Technical Problem
Existing shaft end seals wear out quickly, leading to media leakage and energy waste, affecting equipment stability and product quality, and requiring frequent maintenance.
Method used
A multi-stage combined compensation rotary shaft sealing device is adopted, which includes a combination of a wedge-shaped sealing chamber, a soft packing sealing chamber, a nitrogen sealing chamber, and a single-end mechanical seal. The wedge-shaped sealing ring and the pressure ring's inclined structure increase the contact area, and the O-ring and anti-rotation key improve the sealing effect.
Benefits of technology
It extends the service life of the sealing device, improves sealing reliability and ease of maintenance, and reduces maintenance frequency and energy consumption.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to mechanical field especially relates to a multistage combined compensation formula rotary shaft sealing device. The axle and the axle sleeve pass through the container wall (13), the axle and the axle sleeve are combined together and can rotate together, the axle sleeve outside the container wall (13) is arranged with the wedge-shaped sealing bin of first stage, the soft packing sealing bin of second stage, the nitrogen sealing bin of third stage, the single end face mechanical seal of fourth stage from the container wall outward in proper order, the first wedge-shaped sealing adopts the wedge-shaped sealing ring and the pressing ring, and the material of both is nonmetal material, and the sealing surface is the inclined plane, and the structure of inclined plane increases the contact area, and delays the wear and tear in the stress process, the die spring is set up in the right angle edge of wedge-shaped sealing ring and sealing gland middle, the die spring is in compression state when the sealing device is used first time, along with the wear and tear of wedge-shaped sealing ring and pressing ring, the die spring gradually lengthens, effectively guarantees the contact of wedge-shaped sealing ring and pressing ring sealing surface, prolongs the service life of nonmetal sealing element.
Need to check novelty before this filing date? Find Prior Art