一种间隔浮动式防卡料交叉筛组件
By using an alternating combination of floating and fixed toothed screen plates in the cross screen, along with a design incorporating metal spiral springs and rubber guide columns, the problems of material jamming and overload in the cross screen equipment are solved, achieving stable screening results and continuous operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI XINNENG COAL PREPARATION TECH CO LTD
- Filing Date
- 2024-05-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cross-screen equipment is prone to problems such as coal blocks getting stuck on the shaft, leading to overload and over-crushing. Current technology is difficult to prevent this proactively, and there is also the problem of malfunction.
The screen adopts an alternating combination structure of floating toothed screen plates and fixed toothed screen plates, combined with a metal spiral spring and rubber guide column design. The floating toothed screen plates make room on the side under material compression to expand the screen holes and avoid clogging. The protective sleeve and protective edging components ensure screening effect and reduce wear.
It effectively prevents screen hole clogging, reduces material jamming between adjacent screen shafts, prevents screen shaft overload, reduces material wear, and improves screening efficiency and equipment continuity.
Smart Images
Figure CN224507543U_ABST
Abstract
Claims
1. A spaced floating anti-jamming cross screen assembly, characterized by: It includes a screen shaft (1), a fixed toothed screen plate (2), a floating toothed screen plate (3), and a metal spiral spring (4); the fixed toothed screen plate (2) and the floating toothed screen plate (3) are alternately sleeved on the screen shaft (1), and the metal spiral spring (4) is sleeved on the screen shaft (1) and located between adjacent fixed toothed screen plates (2) and floating toothed screen plates (3); the fixed toothed screen plate (2) is fixedly installed on the screen shaft (1), and the floating toothed screen plate (3) is flexibly installed on the screen shaft (1) through the metal spiral springs (4) on both sides.
2. The spaced, floating, anti-jamming, cross-screed assembly of claim 1, wherein: The unloaded length of the metal helical spring (4) is equal to the axial distance between adjacent fixed toothed screen plates (2) and floating toothed screen plates (3).
3. The spaced, floating, anti-jamming, cross-screed assembly of claim 1 or 2, wherein: The screen shaft (1) is an irregular shaft with round cylinders at both ends and a square cylinder in the middle; the fixed toothed screen plate (2), the floating toothed screen plate (3) and the metal spiral spring (4) are all installed in the square cylinder area.
4. The spaced, floating, anti-jam, cross-screed assembly of claim 3, wherein: The square column area of the screen shaft (1) is provided with a set of axial inner grooves, and a rubber guide post (7) is placed in each inner groove. The rubber guide post (7) isolates the direct contact between the metal helical spring (4) and the screen shaft (1). The length of the rubber guide post (7) is less than the axial distance between the adjacent fixed toothed screen plate (2) and the floating toothed screen plate (3). The two ends of the rubber guide post (7) can directly contact the sides of the adjacent fixed toothed screen plate (2) and the floating toothed screen plate (3).
5. The spaced, floating, anti-jamming, cross-screed assembly of claim 4, wherein: The grooves are distributed on the edges of the square column area of the sieve shaft (1).
6. The spaced, floating, anti-jamming, cross-screed assembly of claim 3, wherein: The fixed toothed sieve plate (2) and the floating toothed sieve plate (3) are provided with square holes in the square column area of the sieve shaft (1) in the middle; a fixing hole is provided on the fixed toothed sieve plate (2), and the fixed toothed sieve plate (2) is pressed and fixed to the square column area of the sieve shaft (1) through the fixing hole.
7. The spaced, floating, anti-jamming, cross-screed assembly of claim 3, wherein: The cylindrical area of the screen shaft (1) is equipped with a sliding bearing (8).
8. The interval floating anti-jamming cross screen assembly according to claim 1, characterized in that: The outer side of the metal helical spring (4) is fitted with a protective sleeve (5) and a protective rim (6). The flared end of the protective rim (6) is fixedly installed on the fixed toothed screen (2) or the floating toothed screen (3). The length of the protective sleeve (5) is less than the axial distance between the adjacent fixed toothed screen (2) and the floating toothed screen (3). The narrow end of the protective rim (6) is fitted on the outer side of the protective sleeve (5), and within the floating range of the floating toothed screen (3), the narrow end of the protective rim (6) and the protective sleeve (5) have an axially overlapping area.
9. The spaced, floating, anti-jamming, cross-screed assembly of claim 8, wherein: The protective sleeve (5) is a cylindrical structure with protrusions on its inner wall.
10. The spaced, floating, plug preventing, cross screen assembly of claim 1 wherein: The toothed sieve plates at both ends of the sieve shaft (1) are fixed toothed sieve plates (2).