CN203020954U - Screw feeder - Google Patents
Screw feeder Download PDFInfo
- Publication number
- CN203020954U CN203020954U CN 201220630717 CN201220630717U CN203020954U CN 203020954 U CN203020954 U CN 203020954U CN 201220630717 CN201220630717 CN 201220630717 CN 201220630717 U CN201220630717 U CN 201220630717U CN 203020954 U CN203020954 U CN 203020954U
- Authority
- CN
- China
- Prior art keywords
- bearing
- screw feeder
- screw shaft
- screw
- utility
- 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
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Abstract
The utility model discloses a screw feeder which comprises a feeding barrel and a screw shaft arranged in the feeding barrel. The screw feeder further comprises an air inlet pipeline used for guiding compressed air, wherein the air inlet pipeline is communicated between a bearing of the screw shaft and a seal ring of the bearing. The screw feeder can effectively prevent conveyed material from entering bearing gaps, and guarantee the normal operation of the device.
Description
Technical field
The utility model belongs to the batching transportation art, particularly a kind of screw feeder.
Background technology
That screw feeder has is simple in structure, cross sectional dimensions is little, good airproof performance, reliable operation, low cost of manufacture, charging and discharging in the middle of being convenient to, and throughput direction can be reverse, also can be simultaneously to advantages such as opposite both direction conveyings.And also can stir material in course of conveying, the operation such as mixing, heating and cooling.By loading and unloading gate adjustable material flow.Be widely used in the conveying industries of preparing burden.But the bearing at the screw shaft two ends of existing screw feeder adopts the conventional seals circle to seal, it transmits material and is easy to the gap between bearing and seal ring of rotating into along with screw shaft, and filled bearing space, and causing the electrical motor overload, equipment can't be worked.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of screw feeder, but this feeder actv. prevents that the material that transmits from entering bearing space, guarantees the normal operation of equipment.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of screw feeder comprises feed cylinder and is located at screw shaft in feed cylinder, comprises that also one is used for importing compressed-air actuated admission line, and this admission line is communicated between the seal ring of the bearing of screw shaft and bearing.
Compared with prior art the technical program has following beneficial effect:
In the screw feeder working process, import pressurized air from admission line and form an air-retaining liner between the seal ring of the bearing of screw shaft and bearing, the air pressure of air-retaining liner is higher than the air pressure in feed cylinder herein, therefore the material that transmits can not enter into the bearing space place of rotation, sealing, thus the normal operation of the equipment of assurance.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
As shown in Figure 1, a kind of screw feeder comprises feed cylinder 1 and is located at screw shaft 2 in feed cylinder, comprises that also one is used for importing compressed-air actuated admission line 5, and this admission line 5 is communicated between the seal ring 4 of the bearing 3 of screw shaft 2 and bearing.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (1)
1. screw feeder comprises feed cylinder and is located at screw shaft in feed cylinder, it is characterized in that, comprises that also one is used for importing compressed-air actuated admission line, and this admission line is communicated between the seal ring of the bearing of screw shaft and bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630717 CN203020954U (en) | 2012-11-26 | 2012-11-26 | Screw feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220630717 CN203020954U (en) | 2012-11-26 | 2012-11-26 | Screw feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203020954U true CN203020954U (en) | 2013-06-26 |
Family
ID=48644953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220630717 Expired - Fee Related CN203020954U (en) | 2012-11-26 | 2012-11-26 | Screw feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203020954U (en) |
-
2012
- 2012-11-26 CN CN 201220630717 patent/CN203020954U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131126 |