CN2712482Y - Screw shaft - Google Patents
Screw shaft Download PDFInfo
- Publication number
- CN2712482Y CN2712482Y CN 200420086935 CN200420086935U CN2712482Y CN 2712482 Y CN2712482 Y CN 2712482Y CN 200420086935 CN200420086935 CN 200420086935 CN 200420086935 U CN200420086935 U CN 200420086935U CN 2712482 Y CN2712482 Y CN 2712482Y
- Authority
- CN
- China
- Prior art keywords
- screw
- spiral
- screw shaft
- hollow pipe
- helical axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Screw Conveyors (AREA)
Abstract
The utility model relates to a screw shaft on a screw screen. The screw shaft reduces the motor load and the bearing force of the shaft, is produced easily, prolongs the service life, and reduces the cost when replaced. The screw shaft comprises a screw outer sleeve and a hollow pipe piece that is equipped with a connecting piece, and one end of the screw outer sleeve is equipped with a cylindrical surface.
Description
Affiliated technical field
The utility model relates to the helical axis in a kind of spiral screen, the helical axis of especially inside and outside two-layer tubular structure.
Background technology
Present existing helical axis is a kind of solid construction of metal, and external diameter is a length spiral, and its shortcoming is that the feed end wearing and tearing are too fast, and it is many to leak coal, and induction-motor load is big.
Summary of the invention
Inhomogeneous for overcoming the helical axis wearing and tearing, reduce induction-motor load, the utility model provides a kind of helical axis, makes its wearing and tearing evenly, and can reduce the structural shape of induction-motor load.
The technical solution adopted in the utility model is: helical axis is divided into spiral sleeve and hollow pipe fitting, partly account for 2/10ths or 3rd/10th of spiral sleeve length, the face of cylinder at overcoat, all the other are spiral parts, are connected with the bearing of bearing block at the internal cavities of spiral one end; Interior cover part is connected with decelerator by the termination that is connected of hollow pipe fitting and one end on the face of cylinder, and the other end is the pressed end that friction top is arranged.
The beneficial effects of the utility model are, spiral sleeve be the high high-abrasive material of hardness once essence cast type, the feeding end external diameter have one section be outside 2/10ths or 3/10ths the face of cylinder of electrical path length, not fragile its surface when coal falls, and increase the coal separation precision; Because interior cover adopts the hollow pipe fitting of flexible material, and can reduce induction-motor load.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the profile of embodiment of the present utility model.
Among the figure: 1. spiral sleeve, 2. hollow pipe fitting 3. connects termination, 4. pressed end, 5. friction top, 6. hold-down bolt.
In Fig. 1, spiral sleeve (1) accounts for 2/10ths or 3rd/10th of its length, the face of cylinder, remainder is a spiral, internal cavities at spiral one end is connected with the bearing of bearing block, interior cover part is welded mutually by the connector (3) of hollow pipe fitting (2) and one end on the face of cylinder, the pressed end of the other end (4) welds mutually with hollow pipe fitting (2), and the outer end of pressed end (4) is being connected spiral sleeve (1) by the boss on spiral sleeve (1) internal diameter with hold-down bolt (6) by friction top (5) with the interior cover part that has hollow pipe fitting (2).
Claims (2)
1, the helical axis on a kind of spiral screen is characterized in that: be made up of spiral sleeve and the hollow pipe fitting with connector.
2, helical axis according to claim 1 is characterized in that: spiral sleeve the first end of link be account for outside 2/10ths or 3/10ths the face of cylinder of electrical path length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086935 CN2712482Y (en) | 2004-07-27 | 2004-07-27 | Screw shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086935 CN2712482Y (en) | 2004-07-27 | 2004-07-27 | Screw shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2712482Y true CN2712482Y (en) | 2005-07-27 |
Family
ID=34874949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420086935 Expired - Fee Related CN2712482Y (en) | 2004-07-27 | 2004-07-27 | Screw shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2712482Y (en) |
-
2004
- 2004-07-27 CN CN 200420086935 patent/CN2712482Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2712482Y (en) | Screw shaft | |
| CN203035551U (en) | Scroll compressor, air conditioner and automobile | |
| CN201209542Y (en) | Plunger piston | |
| CN201916185U (en) | Hollow plunger piston | |
| CN201176911Y (en) | Emulsion pump suitable for down-hole of coal mine | |
| CN201460754U (en) | Sucker rod with eccentric wear prevention | |
| CN201513321U (en) | Structure of powder metallurgical connecting rod for compressor | |
| CN100538118C (en) | Ball screw device | |
| CN200952535Y (en) | Diaphragm coupling diaphragm assembly | |
| CN2781045Y (en) | Water pump vane | |
| CN201269394Y (en) | Long-life grease gun | |
| CN202156740U (en) | Hanging bearing with lubrication device | |
| CN201738833U (en) | Sucker rod coupling | |
| CN201306130Y (en) | Automatic righting and anti-abrasion device for pumping rod | |
| CN2557685Y (en) | Double-sleeve type eccentrically worm proof coupling | |
| CN2641126Y (en) | Multi-point and equilibrium pressure type pile grasping mechanism of pile-pressing machine | |
| CN215890898U (en) | High-strength spring | |
| CN212360536U (en) | Automatic insertion device for mandrel driving shaft of curing furnace of bamboo-based pipe gallery | |
| CN2729365Y (en) | Split link for totally-enclosed refrigeration compressor | |
| CN2816506Y (en) | End-face oil seal | |
| CN203540907U (en) | Screen roller | |
| CN2677588Y (en) | Automatic offset centering guide | |
| CN211072501U (en) | Embedded pressure equipment device of trigeminy gear bush | |
| CN210889682U (en) | Multifunctional micro motor rotating shaft gasket | |
| CN2929146Y (en) | Slide oil pumping rod centralizer body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Jiang Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |