CN202301006U - Built-in bearing double-helix triple-helix double-screw pump - Google Patents
Built-in bearing double-helix triple-helix double-screw pump Download PDFInfo
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- CN202301006U CN202301006U CN 201120393577 CN201120393577U CN202301006U CN 202301006 U CN202301006 U CN 202301006U CN 201120393577 CN201120393577 CN 201120393577 CN 201120393577 U CN201120393577 U CN 201120393577U CN 202301006 U CN202301006 U CN 202301006U
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Abstract
The utility model relates to a built-in bearing double-helix triple-helix double-screw pump, which comprises a pump body, a driving rotor and a driven rotor, and the driving rotor and the driven rotor are mounted in the pump body and engaged with each other. The built-in bearing double-helix triple-helix double-screw pump is characterized in that: the driving rotor is a double-helix driving rotor, the driven rotor is a triple-helix driven rotor, and the driving rotor and the driven rotor are mounted in the pump body; both ends of the driving rotor and the driven rotor are supported by sliding bearings, one end of the pump body is closed by a front cover, a rolling bearing is mounted in the sealed cavity of the front cover, the other end of the pump body is closed by a rear cover, and a pair of synchronous gears which are connected with the driving rotor and the driven rotor is mounted in the sealed cavity of the rear cover; a seal cover is arranged on the extended end of the shaft of the driving rotor, and a mechanical seal for isolating the pump cavity from the outside is mounted in the seal cover. The built-in bearing double-helix triple-helix double-screw pump has the advantage that the pump can deliver various normal-temperature or high-temperature oil products with various viscosities and lubricity or poor lubricity, has the characteristics of high efficiency, stableness in operation, little vibration noise, long service life, compact structure and the like, and is convenient to use and maintain.
Description
Technical field
The utility model belongs to screw pump manufacturing technology field, particularly relates to two three two screw pumps of a kind of built-in bearing.
Background technique
Two screw pump is a kind of positive displacement pump, has been widely used in oil, chemical industry at present, has lubricated each industrial fields such as reaching boats and ships.Traditional two screw pump structure is outboard bearing and passes through the synchromesh gear transmission that the characteristics of this two screw pump are that bearing and synchromesh gear adopt independent lubricating structure, and are isolated with fed sheet of a media; Power rotor and driven rotor are provided with certain clearance through bearing and synchromesh gear location between power rotor and driven rotor, therefore this pump can be carried various fluids, comprises various chemicals.But traditional two screw pump complex structure generally adopts the double suction structure, and is provided with quadruplet mechanical seal, so cause leakage point many, maintenance maintenance is more loaded down with trivial details.Particularly in the application of carrying lubricated all kinds of oil products of wet goods, the traditional double screw pump is compared with three screw pump at aspects such as pump efficiency, running repairs, maintenance, maintenances has bigger gap.But adopt three screw pump can't satisfy again some high temperature, low sticking, the medium lubricity is relatively poor, suct the use occasion of having relatively high expectations.
Summary of the invention
The utility model for solve the technical problem that exists in the known technology provide a kind of have efficient height, running steadily, vibrating noise is little, the life-span is long, compact structure and use built-in bearing pair three two screw pumps of characteristic such as easy to maintenance.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
Two three two screw pumps of built-in bearing; Comprise the pump housing, be installed in intermeshing power rotor and driven rotor in the pump housing; It is characterized in that: said power rotor is the double end power rotor, and said driven rotor is three driven rotors, and sliding supported condition is passed through at said power rotor, driven rotor two ends; At the pump housing one end through preceding lid may enclose; In the protecgulum Seal cage, rolling bearing is housed, the other end of the pump housing is equipped with a pair of synchromesh gear that links to each other with driven rotor with power rotor through the back lid may enclose in the said bonnet Seal cage; The shaft extension end of power rotor has a sealing cover, is equipped with in it to be used for mechanical seal that pump chamber is isolated from the outside.
The utility model can also adopt following technological scheme:
Said intermeshing power rotor and driven rotor are installed in the figure of eight hole of the pump housing.
Said power rotor and driven rotor are the single suction structure.
The rolling bearing that is used for its axially locating is installed on said power rotor.
The cylindrical of said sliding bearing cooperates with pump housing figure of eight endoporus, and the endoporus of sliding bearing cooperates with power rotor, driven rotor.
Said synchromesh gear is the helical gear that is used for driving torque and balance power rotor and driven rotor axial force.
In said rolling bearing, protecgulum Seal cage and the bonnet Seal cage reflow pipe that communicates with pump housing pressure chamber is arranged all.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, promptly the power rotor of pump and driven rotor are designed to the single suction structure, and its axial force is come balance by a pair of synchromesh gear; Simultaneously, the screw thread locking phenomenon that occurs when preventing the little helical pitch of rotor helical-screw, the moment of torsion transmission of driven rotor is realized by synchromesh gear; This pump is designed to can two-way rotational structure, is equipped with towards the reflow pipe of pump housing pressure chamber in rolling bearing, protecgulum Seal cage and the bonnet Seal cage, to promote the circulation of each chamber inner fluid, guarantees the sufficient lubrication and the cooling of rolling bearing, gear, sealing.Adopt the present technique scheme; Can make this pump carry various viscosity, lubricity is arranged or lubricity is relatively poor, normal temperature or all kinds of oil products of high temperature; Therefore, this pump have efficient height, running steadily, advantage such as vibrating noise is little, the life-span is long, compact structure, use are easy to maintenance.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, the pump housing; 2, power rotor; 3, driven rotor; 4, protecgulum; 5, bonnet; 6, sealing cover; 7, rolling bearing; 8, mechanical seal; 9, synchromesh gear; 10, sliding bearing; 11, locknut; 12, reflow pipe; 13, reflow pipe.
Embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1, two three two screw pumps of built-in bearing comprise the pump housing 1, are installed in intermeshing power rotor 2 and driven rotor 3 in the pump housing; Said power rotor is the double end power rotor; Said driven rotor is three driven rotors, and intermeshing power rotor and driven rotor are installed in the pump housing, in the present embodiment; Said power rotor and driven rotor are the single suction structure, and intermeshing power rotor and driven rotor are installed in the figure of eight hole of the pump housing.Rolling bearing 7 through protecgulum 4 sealings, is equipped with at the pump housing one end through sliding bearing 10 supportings in said power rotor, driven rotor two ends in protecgulum 4 Seal cages, the rolling bearing 7 that is used for its axially locating promptly is installed on said power rotor.The other end of the pump housing 1 is through bonnet 5 sealings; The a pair of synchromesh gear 9 that links to each other with driven rotor with power rotor is housed in the said bonnet Seal cage; And it is fastening through locknut 11; In the present embodiment, said synchromesh gear is the helical gear that is used for driving torque and balance power rotor and driven rotor axial force.The shaft extension end of power rotor is provided with a sealing cover 6, is equipped with in it to be used for mechanical seal 8 that pump chamber is isolated from the outside.The cylindrical of said sliding bearing 10 cooperates with pump housing figure of eight endoporus, and the endoporus of sliding bearing cooperates with power rotor, driven rotor.Said rolling bearing has the reflow pipe 13 that communicates with pump housing pressure chamber, and the reflow pipe 12 that communicates with pump housing pressure chamber is all arranged in said protecgulum Seal cage and the bonnet Seal cage.
The working principle of the utility model is:
Driving machine is through the shaft extension end of pump power rotor; Driving moment is passed to power rotor 2; Power rotor passes to driven rotor 3 through synchromesh gear 9 with moment of torsion, and power rotor drives driven rotor and in the pump housing, rotates, and institute's fed sheet of a media is delivered to the pressure chamber end of pump discharge by pump inlet.On the one hand, the high-pressure medium of pressure chamber flows into gear cavity through reflow pipe 12, is back to the snout cavity of pump again through the sliding bearing 10 and the gap of power rotor and driven rotor, thereby forms the circulation of medium, and realization is lubricated synchromesh gear and cools off.On the other hand; The high-pressure medium of pressure chamber is through gap entering rolling bearing 7, the Seal cage of sliding bearing 10 with master and slave rotor; Get back to the snout cavity of pump again through the reflow pipe 12 of protecgulum Seal cage, form the circulation of medium, realize lubricated and cooling rolling bearing and sealing.During the pump counterrotating, the flow direction of medium is just in time opposite.
Although combine accompanying drawing that the preferred embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the utility model.
Claims (8)
1. two three two screw pumps of a built-in bearing; Comprise the pump housing, be installed in intermeshing power rotor and driven rotor in the pump housing; It is characterized in that: said power rotor is the double end power rotor, and said driven rotor is three driven rotors, and sliding supported condition is passed through at said power rotor, driven rotor two ends; At the pump housing one end through preceding lid may enclose; In the protecgulum Seal cage, rolling bearing is housed, the other end of the pump housing is equipped with a pair of synchromesh gear that links to each other with driven rotor with power rotor through the back lid may enclose in the said bonnet Seal cage; The shaft extension end of power rotor has a sealing cover, is equipped with in it to be used for mechanical seal that pump chamber is isolated from the outside.
2. two three two screw pumps of built-in bearing according to claim 1, it is characterized in that: said intermeshing power rotor and driven rotor are installed in the figure of eight hole of the pump housing.
3. two three two screw pumps of built-in bearing according to claim 2, it is characterized in that: said power rotor and driven rotor are the single suction structure.
4. two three two screw pumps of built-in bearing according to claim 3 is characterized in that: the rolling bearing that is used for its axially locating is installed on said power rotor.
5. two three two screw pumps of built-in bearing according to claim 1 and 2, it is characterized in that: the cylindrical of said sliding bearing cooperates with pump housing figure of eight endoporus, and the endoporus of sliding bearing cooperates with power rotor, driven rotor.
6. two three two screw pumps of built-in bearing according to claim 1, it is characterized in that: said synchromesh gear is the helical gear that is used for driving torque and balance power rotor and driven rotor axial force.
7. two three two screw pumps of built-in bearing according to claim 6, it is characterized in that: said synchromesh gear is fastened on power rotor and the driven rotor through locknut.
8. two three two screw pumps of built-in bearing according to claim 1 is characterized in that:
In said rolling bearing, protecgulum Seal cage and the bonnet Seal cage reflow pipe that communicates with pump housing pressure chamber is arranged all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120393577 CN202301006U (en) | 2011-10-14 | 2011-10-14 | Built-in bearing double-helix triple-helix double-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120393577 CN202301006U (en) | 2011-10-14 | 2011-10-14 | Built-in bearing double-helix triple-helix double-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301006U true CN202301006U (en) | 2012-07-04 |
Family
ID=46369915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120393577 Expired - Fee Related CN202301006U (en) | 2011-10-14 | 2011-10-14 | Built-in bearing double-helix triple-helix double-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996442A (en) * | 2012-12-30 | 2013-03-27 | 重庆明珠机电有限公司 | Novel double-screw pump |
| CN105756925A (en) * | 2016-04-28 | 2016-07-13 | 天津市曌林机泵设备有限公司 | Colloidal liquid pump adopting single set of mechanical seal |
| CN109931257A (en) * | 2019-04-26 | 2019-06-25 | 无锡职业技术学院 | Multi-functional double helix viscous flow pump |
-
2011
- 2011-10-14 CN CN 201120393577 patent/CN202301006U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996442A (en) * | 2012-12-30 | 2013-03-27 | 重庆明珠机电有限公司 | Novel double-screw pump |
| CN105756925A (en) * | 2016-04-28 | 2016-07-13 | 天津市曌林机泵设备有限公司 | Colloidal liquid pump adopting single set of mechanical seal |
| CN109931257A (en) * | 2019-04-26 | 2019-06-25 | 无锡职业技术学院 | Multi-functional double helix viscous flow pump |
| CN109931257B (en) * | 2019-04-26 | 2021-03-30 | 无锡职业技术学院 | Multifunctional double-helix viscous flow pump |
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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 |
Granted publication date: 20120704 Termination date: 20141014 |
|
| EXPY | Termination of patent right or utility model |