CN201335009Y - Dual rotor rotary-displacement pump - Google Patents
Dual rotor rotary-displacement pump Download PDFInfo
- Publication number
- CN201335009Y CN201335009Y CNU2008201698186U CN200820169818U CN201335009Y CN 201335009 Y CN201335009 Y CN 201335009Y CN U2008201698186 U CNU2008201698186 U CN U2008201698186U CN 200820169818 U CN200820169818 U CN 200820169818U CN 201335009 Y CN201335009 Y CN 201335009Y
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- CN
- China
- Prior art keywords
- pump
- pump cover
- cover
- pump housing
- housing
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- 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 dual rotor rotary displacement pump. The pump comprises a pump body, a rotor and a pump cover and is characterized in that the pump body comprises an inner pump body which is made from corrosion resistant plastic, the pump cover comprises an inner pump cover which is made form corrosion resistant plastic, the inner pump body is fixed with the inner pump cover in a sealing manner and is provided with an inner pump cavity in which the rotor is arranged. The pump has the advantages that the rotor and an electric motor are not damaged as the rotor and the pump body are deadlocked when harder impurities exist; therefore, the rotor can be clung closely with the inner cavity surface of the inner pump body to improve the pressure and the suction of the pump; with the same power of the electric motor, firstly, the pressure is doubled and more stable, secondly, the suction is improved; the original metal pump needs to divert water and can not suck water vertically, while the displacement pump can vertically raise the water to 2-3 meters high without the need of water diversion. As the inner pump body is always static, the displacement pump is not easy to abraded and damaged.
Description
Technical field
The utility model relates to a kind of displacement pump that is applied to food and chemical field, especially relates to a kind of dual rotor rotary type displacement pump.
Background technique
Dual rotor rotary type displacement pump is widely used in industries such as chemical industry, metallurgy, papermaking, food and pharmacy at present, is particularly suitable for thick high concentration medium, Korrosionsmedium and does not allow the medium of pollution, as Lubricants, chocolate mass and paper pulp etc.Existing dual rotor rotary type displacement pump mainly is made of two rotors that are arranged in the pump housing, and rotor is provided with at least two blades, and the end face of blade and pump housing inboard fit in cambered surface, and smooth surface.Because the special requirement aspect cleaning is applicable to that at present the pump housing and the rotor of the dual rotor rotary type displacement pump of these industries adopts the stainless steel manufacturing usually.But, because the inner chamber of the whole pump housing has been full of medium in the course of the work, and often have a tiny particle and impurity in the medium, enter the damage with motor of scrapping that causes stuck between two parts between the inner cavity surface of the end face of blade and the pump housing and cause rotor for fear of these tiny particles and impurity, people are provided with certain clearance usually between the inner cavity surface of the end face of blade and the pump housing, but have so caused the decline of pumping pressure and suction.
Number of patent application is to disclose a kind of rotor that is used for rotarydisplacement pump in the Chinese utility application prospectus of 200610155105.X, by on the end face of blade groove being set, impurity being clamp-oned prevented in the groove that blade is stuck by impurity.But the rotor of this structure is still failed fundamentally to solve between the inner cavity surface of the end face of blade and the pump housing and is existed the gap to cause the problem of the decline of pumping pressure and suction, if and have too small that the gap is provided with between the inner cavity surface with the end face of blade and the pump housing, when impurity is hard, also still there is stuck problem.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of pumping pressure and suction significantly improves and the pump housing and two parts of rotor between can be not stuck dual rotor rotary type displacement pump.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of dual rotor rotary type displacement pump, comprise the pump housing, rotor and pump cover, the described pump housing comprises the inner pump that corrosion-resistant plastic is made, described pump cover comprises the interior pump cover that corrosion-resistant plastic is made, described inner pump and described interior pump cover sealing and fixing, described inner pump is provided with interior pump chamber, and described rotor is arranged in the described interior pump chamber.
Described inner pump and described interior pump cover are outside equipped with the metal stiffening device.
Described metal stiffening device comprises pump housing reinforcement liner plate and pump cover gusset plate, described pump housing reinforcement liner plate is fixedlyed connected with the described pump housing, the rear end of the described pump housing is provided with pump housing positioning boss, described pump housing stiffening plate is provided with pump housing location cavity, described pump housing positioning boss embeds in the cavity of described pump housing location, pump cover is provided with the pump cover positioning boss in described, described pump cover gusset plate is provided with pump cover location cavity, described pump cover positioning boss embeds in the cavity of described pump cover location, and described pump cover gusset plate is fixedlyed connected by bolt device with described pump housing reinforcement liner plate and described inner pump and described interior pump cover are fixed between described pump cover gusset plate and the described pump housing reinforcement liner plate.
Described metal stiffening device comprises that the pump housing strengthens pump block and pump cover gusset plate outward, described inner pump is embedded outside the described pump housing to be strengthened in the pump block, described pump cover is provided with the pump cover positioning boss, described pump cover gusset plate is provided with pump cover location cavity, described pump cover positioning boss embeds in the cavity of described pump cover location, and described pump cover gusset plate and the described pump housing are strengthened outward that pump block is fixedlyed connected by bolt device and described interior pump cover be fixed on described pump cover gusset plate and the described pump housing is strengthened between the pump block outward.
Described corrosion-resistant plastic is a teflon.
Described inner pump is provided with the metal abaculus, and described metal abaculus is provided with the connection screw.
Compared with prior art, advantage of the present utility model is by inner pump and the interior pump cover that corrosion-resistant plastic is made is set, because pump housing material has certain flexibility, therefore when having harder impurity, can not cause stuck between the rotor and the pump housing and damage rotor and motor; Also rotor can be close to the inner cavity surface setting of inner pump thus, to significantly improve pumping pressure and suction, compare with the existing metal pump housing, under the same power of motor, the one, pressure doubles, pressure and instability that the virgin metal pump is fetched water and had only 3 kilograms, displacement pump of the present utility model then can reach 6 kilograms and highly stable; The 2nd, suction improves, and the virgin metal pump need add diversion, and water vertically can not be sucked out, then water vertically can be risen 2～3 meters height and do not need to add diversion of displacement pump of the present utility model; Outside inner pump and interior pump cover, the metal stiffening device is set, displacement pump is operated under the higher pressure; Metal abaculus with connection screw is set on inner pump, more firm when exterior part is connected by screw with inner pump; In addition, because inner pump of the present utility model remains static therefore generally not easy to wear and damage all the time.
Description of drawings
The external structure schematic representation that Fig. 1 analyses and observe for the utility model embodiment part part;
Fig. 2 is the structural representation that the utility model embodiment one the pump housing cooperates with pump cover;
Fig. 3 is the plane structure schematic representation of the utility model embodiment one the pump housing that is provided with rotor;
Fig. 4 is the plane structure schematic representation of the utility model embodiment one the pump housing;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the structural representation that the utility model embodiment two the pump housing cooperates with pump cover;
Fig. 7 be the utility model embodiment two the pump housing the plane structure schematic representation.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one: shown in Fig. 1～5, a kind of dual rotor rotary type displacement pump, comprise pump cover 2 in teflon inner pump 1 and the teflon, inner pump 1 is provided with interior pump chamber 11, rotor 3 is arranged in the interior pump chamber 11, inner pump 1 is provided with water intake 17 and water outlet 18, be provided with seal ring 12 between inner pump 1 and the interior pump cover 2, interior pump cover 2 is provided with seal groove 22, seal ring 12 is embedded in seal groove 22, inner pump 1 is provided with metal abaculus 13, metal abaculus 13 is provided with and connects screw 14, inner pump 1 outer fixing is connected with the pump housing and strengthens liner plate 4, the pump housing is strengthened liner plate 4 and is fixed on the housing 100 of gear-box, the rear end of inner pump 1 is provided with pump housing positioning boss 15, pump housing stiffening plate 4 is provided with pump housing location cavity 41, pump housing positioning boss 15 embeds in the cavity 41 of pump housing location, interior pump cover 2 is outside equipped with pump cover gusset plate 5, interior pump cover 2 is provided with pump cover positioning boss 21, pump cover gusset plate 5 is provided with pump cover location cavity 51, in the pump cover positioning boss 21 embedding pump cover location cavitys 51, pump cover gusset plate 5 is fixedlyed connected by bolt device (figure shows) with pump housing reinforcement liner plate 4 and inner pump 1 and interior pump cover 2 is fixed between pump cover gusset plate 5 and the pump housing reinforcement liner plate 4.
Embodiment two: as shown in Figure 6 and Figure 7, other structure is identical with embodiment one, difference is that inner pump 1 ' is outside equipped with the pump housing and strengthens pump block 6 outward, inner pump 1 ' is embedded to be strengthened outside the pump housing in the pump block 6, pump cover gusset plate 5 and the pump housing are strengthened outward that pump block 6 is fixedlyed connected by bolt device (figure shows) and interior pump cover 2 are fixed on pump cover gusset plate 5 and the pump housing is strengthened between the pump block 6 outward, in addition, on inner pump, do not need to be provided with metal abaculus 13.
Claims (6)
1, a kind of dual rotor rotary type displacement pump, comprise the pump housing, rotor and pump cover, it is characterized in that the described pump housing comprises the inner pump that corrosion-resistant plastic is made, described pump cover comprises the interior pump cover that corrosion-resistant plastic is made, described inner pump and described interior pump cover sealing and fixing, described inner pump is provided with interior pump chamber, and described rotor is arranged in the described interior pump chamber.
2, a kind of dual rotor rotary type displacement pump as claimed in claim 1 is characterized in that described inner pump and described interior pump cover are outside equipped with the metal stiffening device.
3, a kind of dual rotor rotary type displacement pump as claimed in claim 2, it is characterized in that described metal stiffening device comprises pump housing reinforcement liner plate and pump cover gusset plate, described pump housing reinforcement liner plate is fixedlyed connected with described inner pump, the rear end of described inner pump is provided with pump housing positioning boss, described pump housing stiffening plate is provided with pump housing location cavity, described pump housing positioning boss embeds in the cavity of described pump housing location, pump cover is provided with the pump cover positioning boss in described, described pump cover gusset plate is provided with pump cover location cavity, described pump cover positioning boss embeds in the cavity of described pump cover location, and described pump cover gusset plate is fixedlyed connected by bolt device with described pump housing reinforcement liner plate and described inner pump and described interior pump cover are fixed between described pump cover gusset plate and the described pump housing reinforcement liner plate.
4, a kind of dual rotor rotary type displacement pump as claimed in claim 2, it is characterized in that described metal stiffening device comprises that the pump housing strengthens pump block and pump cover gusset plate outward, described inner pump is embedded outside the described pump housing to be strengthened in the pump block, pump cover is provided with the pump cover positioning boss in described, described pump cover gusset plate is provided with pump cover location cavity, described pump cover positioning boss embeds in the cavity of described pump cover location, and described pump cover gusset plate and the described pump housing are strengthened outward that pump block is fixedlyed connected by bolt device and described interior pump cover be fixed on described pump cover gusset plate and the described pump housing is strengthened between the pump block outward.
5, a kind of dual rotor rotary type displacement pump as claimed in claim 1 is characterized in that described corrosion-resistant plastic is a teflon.
6, as the described a kind of dual rotor rotary type displacement pump of each claim in the claim 1～5, it is characterized in that described inner pump is provided with the metal abaculus, described metal abaculus is provided with the connection screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201698186U CN201335009Y (en) | 2008-12-05 | 2008-12-05 | Dual rotor rotary-displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201698186U CN201335009Y (en) | 2008-12-05 | 2008-12-05 | Dual rotor rotary-displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335009Y true CN201335009Y (en) | 2009-10-28 |
Family
ID=41286658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201698186U Expired - Fee Related CN201335009Y (en) | 2008-12-05 | 2008-12-05 | Dual rotor rotary-displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335009Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105285276A (en) * | 2015-12-15 | 2016-02-03 | 苏州明锦机械设备有限公司 | Ball grinder |
| CN105360530A (en) * | 2015-12-15 | 2016-03-02 | 苏州明锦机械设备有限公司 | Bi-rotor pump |
-
2008
- 2008-12-05 CN CNU2008201698186U patent/CN201335009Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105285276A (en) * | 2015-12-15 | 2016-02-03 | 苏州明锦机械设备有限公司 | Ball grinder |
| CN105360530A (en) * | 2015-12-15 | 2016-03-02 | 苏州明锦机械设备有限公司 | Bi-rotor pump |
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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: 20091028 Termination date: 20121205 |