CN203835711U - Rotor mechanism of roots pump - Google Patents
Rotor mechanism of roots pump Download PDFInfo
- Publication number
- CN203835711U CN203835711U CN201420289704.0U CN201420289704U CN203835711U CN 203835711 U CN203835711 U CN 203835711U CN 201420289704 U CN201420289704 U CN 201420289704U CN 203835711 U CN203835711 U CN 203835711U
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel tube
- rotor mechanism
- roots pump
- rotating shaft
- 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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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a rotor mechanism of a roots pump. The rotor mechanism of the roots pump comprises a spindle, two butterfly pieces and at least one stainless steel pipe. The stainless steel pipes are divided into a left group and a right group, which are arranged on the left side and the right side of the butterfly pieces respectively; the stainless steel pipes of the same group are axially connected, wherein the top stainless steel pipe and the bottom stainless steel pipe are welded to the two butterfly pieces respectively; the butterfly pieces sleeve the spindle; an injection-molded corrosion resistant layer made of polypropylene is formed on the outer surfaces of the spindle, the butterfly pieces and the stainless steel pipes through embedment. The rotor mechanism of the roots pump is long in service life.
Description
Technical field
The utility model belongs to Roots pump field, is specifically related to a kind of rotor mechanism of Roots pump.
Background technique
When pump is in the time that conveying contains Korrosionsmedium, can produce corrosion, reduction of service life to the blade on rotor mechanism.The pump housing of existing Multiple Type improves this, sprays fluorine and moulds alloy anticorrosive coat, but have the caducous not problem of anticorrosive coat bonding strength in pump.In addition, due to complex-shaped in Roots pump, spraying corrosion resistant coating difficulty, therefore the Anticorrosion of Roots pump fails effectively to solve always.
Model utility content
(1) technical problem that will solve
The technical problems to be solved in the utility model is the anti-corrosive properties that strengthen rotor mechanism.
(2) technological scheme
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: the rotor mechanism in a kind of Roots pump, comprises rotating shaft, 2 butterfly sheets and the Stainless Steel Tube of at least one; Described Stainless Steel Tube divides two groups of left and right, and is separately positioned on the left and right sides of butterfly sheet, and the Stainless Steel Tube of every group axially connects, wherein the top and the Stainless Steel Tube of below weld with two butterfly sheets respectively; Described butterfly sheet is socketed in rotating shaft, forms the anticorrosive coat of the polypropylene material of an injection molded by being embedded in the outer surface of rotating shaft, butterfly sheet and Stainless Steel Tube.
The middle of described butterfly sheet includes rectangular opening, and the shape of cross section of described rotating shaft middle is rectangle, and described butterfly sheet is enclosed within the middle of rotating shaft by rectangular opening.
The outer surface of described Stainless Steel Tube is provided with step and the rolled thread of indent, described anticorrosive coat parcel step and rolled thread.
When making the endoporus sealing of Stainless Steel Tube after butterfly sheet and Stainless Steel Tube welding.
The upside of described single Stainless Steel Tube and downside are provided with annular breach and slotting ring respectively, and the slotting ring of described adjacent Stainless Steel Tube is plugged in breach.
(3) beneficial effect
Rotor mechanism in Roots pump of the present utility model, in rotating shaft axle body both sides, Stainless Steel Tube is set, and by butterfly sheet, Stainless Steel Tube is connected with rotating shaft, and the pre-buried anticorrosive coat that is injection molded into polyethylene material of the outer surface that makes rotating shaft, butterfly sheet and Stainless Steel Tube, the external world and Stainless Steel Tube, rotating shaft are completely cut off, realize anticorrosionly, and structure is very firm, thus the object increasing the service life.And the Stainless Steel Tube of multiple axial connections is set, thereby can control the size of rotor mechanism, without the rotor mechanism that different size is set, provide cost savings, Stainless Steel Tube is provided with endoporus, and endoporus is sealed by butterfly sheet, therefore alleviated the weight of rotor mechanism, therefore reduce driving force, reduced user cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model Roots pump;
Fig. 2 is the sectional view of A-A in the utility model Fig. 1;
Fig. 3 is the structural representation that in the utility model, Stainless Steel Tube axially connects;
In figure, 2 is that rotating shaft, 3 is that butterfly sheet, 4 is that Stainless Steel Tube, 5 is that anticorrosive coat, 6 is that step, 7 is that rolled thread, 8 is that breach, 9 is slotting ring.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
Rotor mechanism in a kind of Roots pump as shown in Figure 1-Figure 3, comprises 2,2 butterfly sheets 3 of rotating shaft and the Stainless Steel Tube of at least one 4; Two groups of 4 points of left and right of described Stainless Steel Tube, and be separately positioned on the left and right sides of butterfly sheet 3, the Stainless Steel Tube 4 of every group axially connects, wherein the top and the Stainless Steel Tube 4 of below weld with two butterfly sheets 3 respectively; Described butterfly sheet 3 is socketed in rotating shaft 2, form the anticorrosive coat 5 of the polypropylene material of an injection molded by being embedded in the outer surface of rotating shaft 2, butterfly sheet 3 and Stainless Steel Tube 4, thereby formation blade, therefore the external world and Stainless Steel Tube, rotating shaft are completely cut off, make blade can not receive extraneous ature of coal corrosion, and structure is very firm, thereby the object increasing the service life.And by the Stainless Steel Tube 4 of multiple axial connections, thereby can control the size of rotor mechanism, without the rotor mechanism that different size is set, as long as control the quantity of Stainless Steel Tube 4, therefore provide cost savings.
The middle of described butterfly sheet 3 includes rectangular opening, and the shape of cross section of described rotating shaft 2 middles is rectangle, and described butterfly sheet 3 is enclosed within the middle of rotating shaft 2 by rectangular opening.
The outer surface of described Stainless Steel Tube is provided with step 6 and the rolled thread 7 of indent, and described anticorrosive coat 5 wraps up step 6 and rolled thread 7, strengthens the effect that is connected of anticorrosive coat 5 and Stainless Steel Tube.
After welding, butterfly sheet 3 and Stainless Steel Tube 4 make the endoporus sealing of Stainless Steel Tube 4.
The upside of described single Stainless Steel Tube 4 and downside are provided with annular breach 8 and slotting ring 9 respectively, and the slotting ring 9 of described adjacent Stainless Steel Tube 4 is plugged in breach 8.Stainless Steel Tube is provided with endoporus, and endoporus is sealed by butterfly sheet, therefore alleviated the weight of rotor mechanism, has therefore reduced driving force, has reduced user cost.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the rotor mechanism in Roots pump, is characterized in that: the rotor mechanism in described Roots pump comprises rotating shaft (2), 2 butterfly sheets (3) and the Stainless Steel Tube of at least one (4); Two groups of described Stainless Steel Tube (4) point left and right, and be separately positioned on the left and right sides of butterfly sheet (3), the Stainless Steel Tube (4) of every group axially connects, wherein the top and the Stainless Steel Tube (4) of below weld with two butterfly sheets (3) respectively; It is upper that described butterfly sheet (3) is socketed in rotating shaft (2), forms the anticorrosive coat (5) of the polypropylene material of an injection molded by being embedded in the outer surface of rotating shaft (2), butterfly sheet (3) and Stainless Steel Tube (4).
2. the rotor mechanism in Roots pump according to claim 1, it is characterized in that: the middle of described butterfly sheet (3) includes rectangular opening, the shape of cross section of described rotating shaft (2) middle is rectangle, and described butterfly sheet (3) is enclosed within the middle of rotating shaft (2) by rectangular opening.
3. the rotor mechanism in Roots pump according to claim 1, it is characterized in that: the outer surface of described Stainless Steel Tube is provided with the step of indent (6) and rolled thread (7) described anticorrosive coat (5) parcel step (6) and rolled thread (7).
4. the rotor mechanism in Roots pump according to claim 1, is characterized in that: after butterfly sheet (3) and Stainless Steel Tube (4) weld, make the endoporus sealing of Stainless Steel Tube (4).
5. the rotor mechanism in Roots pump according to claim 1, it is characterized in that: the upside of single described Stainless Steel Tube (4) and downside are provided with annular breach (8) and slotting ring (9) respectively, the slotting ring (9) of adjacent described Stainless Steel Tube (4) is plugged in breach (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289704.0U CN203835711U (en) | 2014-05-30 | 2014-05-30 | Rotor mechanism of roots pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289704.0U CN203835711U (en) | 2014-05-30 | 2014-05-30 | Rotor mechanism of roots pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835711U true CN203835711U (en) | 2014-09-17 |
Family
ID=51513559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420289704.0U Expired - Fee Related CN203835711U (en) | 2014-05-30 | 2014-05-30 | Rotor mechanism of roots pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835711U (en) |
-
2014
- 2014-05-30 CN CN201420289704.0U patent/CN203835711U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200530 |