CN109779920B - Two-stage speed-increasing peripheral pump device based on planetary gear train - Google Patents
Two-stage speed-increasing peripheral pump device based on planetary gear train Download PDFInfo
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- CN109779920B CN109779920B CN201910180779.2A CN201910180779A CN109779920B CN 109779920 B CN109779920 B CN 109779920B CN 201910180779 A CN201910180779 A CN 201910180779A CN 109779920 B CN109779920 B CN 109779920B
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Abstract
The invention discloses a two-stage speed-increasing peripheral pump device based on a planetary gear train. The invention comprises a driving shaft, a driven shaft, a primary vortex pump, a secondary vortex pump and a planetary gear device. The motor drives the driving shaft to rotate at a low speed, so that the first-stage impeller is driven to rotate, the gear ring and the planet carrier are driven to rotate simultaneously, and the gear ring and the planet carrier are integrated through casting and turning technologies. The sun wheel is connected with the driven shaft and is externally engaged with the planet wheel, and the planet wheel is internally engaged with the gear ring. The rotating speed of the sun gear is changed through the action of the planetary gear train, so that the driven shaft rotates at a high speed, and meanwhile, the secondary impeller is driven to rotate at a high speed. One end of the connecting pipeline is connected with the water outlet of the primary vortex pump, and the other end of the connecting pipeline is connected with the water inlet of the secondary vortex pump. And low-pressure fluid flows in from the water inlet of the primary vortex pump and flows out from the water outlet of the primary vortex pump under the action of the primary impeller to form high-pressure fluid. The invention increases the application range of the speed-increasing vortex pump.
Description
Technical Field
The invention relates to a speed-increasing peripheral pump device based on a planetary gear train, in particular to a peripheral pump device capable of achieving two-stage speed increasing. Through the action of the planetary gear train, the rotating speed of the driven shaft is changed, so that the rotating speed of the secondary impeller is increased, and the effect of two-stage speed increase is achieved.
Background
With the development and application of pumps, the outlet pressure of the impeller cannot meet the pressure requirement in some fields, so that the improvement of the outlet pressure of the pump needs to be continuously perfected. However, current vortex pump devices can only achieve a transition from a low pressure flow rate to a high pressure flow rate. Current vortex pumps are not able to meet optimum performance requirements when higher fluid velocities are required.
Disclosure of Invention
The invention provides a two-stage speed-increasing peripheral pump device based on a planetary gear train, aiming at the problems.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a two-stage speed-increasing peripheral pump device based on a planetary gear train comprises a connecting pipeline (2), a driving shaft (5), a driven shaft (26), a primary peripheral pump (4), a secondary peripheral pump (11), a limiting boss (28) and a planetary gear device. The drive shaft (5) sequentially penetrates through the primary impeller (18), the planet carrier (16) and the planet gear (14), and the motor drives the drive shaft (5), the primary impeller (18), the gear ring (13) and the planet carrier (16) to rotate. A gear ring (13) in the planetary gear device drives a planetary gear (14), a sun gear (15), a driven shaft (26) and a secondary impeller (22) to rotate. One end of the connecting pipeline (2) is connected with the water outlet (3) of the primary vortex pump, and the other end of the connecting pipeline is connected with the water inlet (10) of the secondary vortex pump. Low-pressure fluid enters from a water inlet (1) of the primary vortex pump, is changed into high-pressure fluid through the centrifugal action of a primary impeller (18), the high-pressure fluid flows out of a water outlet (3) of the primary vortex pump, flows into a water inlet (10) of the secondary vortex pump through a connecting pipeline (2), and is changed into higher-pressure fluid through the centrifugal action of a secondary impeller (22) and flows out of a water outlet (12) of the secondary vortex pump. The limiting boss (28) is welded with the secondary vortex pump (11) to prevent the planet wheel (14) from moving axially.
The planetary gear device comprises a gear ring (13), a planet carrier (16), a planet wheel (14) and a sun wheel (15); the gear ring (13) and the planet carrier (16) are integrally formed by casting and turning technology; the gear ring (13) is internally meshed with the planet wheel (14), and the planet wheel (14) is externally meshed with the sun wheel (15); the planet carrier (16) is communicated with the central through hole of the planet wheel (14).
The sun wheel (15) is connected with the driven shaft (26) through a shaft sleeve II (27), and the transmission ratio is changed under the action of the planetary gear train, so that the rotating speed of the sun wheel (15) is increased, the driven shaft (26) rotates at a high speed, and meanwhile, the secondary impeller (22) also rotates at a high speed.
The primary impeller (18) and the secondary impeller (22) are respectively provided with a primary impeller lightening hole (19) and a secondary impeller lightening hole (23), and the primary impeller lightening holes (19) and the secondary impeller lightening holes (23) are circumferentially and uniformly distributed to keep axial symmetry.
The number of the lightening holes (19) of the primary impeller and the lightening holes (23) of the secondary impeller is preferably 3.
The limiting boss (28) is connected with the planet wheel (14) and welded with a pump shell of the secondary vortex pump (11) into a whole, so that the planet wheel (14) is prevented from moving axially in the working process.
Two side surfaces of the first-stage vortex pump (4) are provided with a bearing end cover I (6) and a bearing end cover II (7) which are used for fixing a driving shaft (5) penetrating through a central hole of the first-stage vortex pump (4); two side surfaces of the secondary vortex pump (11) are provided with a bearing end cover III (8) and a bearing end cover IV (9); for securing a driven shaft (26) passing through the central bore of the secondary volute pump (11).
The invention has the following technical effects:
the invention utilizes the planetary gear train to enable the acceleration of the vortex pump to be feasible. The whole device mainly comprises a driving shaft, a driven shaft, a connecting pipeline, a primary vortex pump, a secondary vortex pump, a planetary gear device and a limiting boss. The motor drives the driving shaft, the first-stage impeller, the gear ring and the planet carrier to rotate. A gear ring in the planetary gear device drives the planet gear, the sun gear, the driven shaft and the secondary impeller to rotate. The connecting pipeline is connected with the water outlet of the primary vortex pump and the water inlet of the secondary vortex pump, and high-pressure fluid flowing out of the water outlet of the primary vortex pump flows into the water inlet of the secondary vortex pump through the connecting pipeline and becomes higher-pressure fluid flowing out of the water outlet of the secondary vortex pump under the action of the planetary gear train. The limiting boss is welded with the secondary vortex pump to prevent the planet wheel from moving axially.
The motor drives the driving shaft to rotate at a low speed, so that the first-stage impeller is driven to rotate at a low speed, the gear ring and the planet carrier are driven to rotate at a low speed, and the gear ring and the planet carrier are integrated through casting and turning technologies. The sun gear is connected with the driven shaft, and the rotating speed of the sun gear is improved under the action of the planetary gear train, so that the rotating speed of the driven shaft is also improved, and meanwhile, the rotating speed of the secondary impeller is also greatly improved. Two ends of the connecting pipeline are respectively connected with the water outlet of the primary vortex pump and the water inlet of the secondary vortex pump, low-pressure fluid flows in from the water inlet of the primary vortex pump and becomes high-pressure fluid to flow out of the water outlet of the primary vortex pump under the action of the primary impeller, the high-pressure fluid flows in the water inlet of the secondary vortex pump through the connecting pipeline and becomes higher-pressure fluid to flow out of the water outlet of the secondary vortex pump under the action of the secondary impeller.
The invention adopts the planetary gear train, and the rotating speed of the driven shaft is improved through the action of the planetary gear train, so that the rotating speed of the secondary impeller is also improved, the speed of the high-pressure fluid is greatly increased, and the high-pressure fluid is further changed into a higher-pressure fluid. The method is an effective technical means, and the application range of the speed-increasing vortex pump is greatly enlarged.
Drawings
FIG. 1 is a right side view of the internal structure of the peripheral pump;
FIG. 2 is a side view of the vortex pump;
FIG. 3 is a top view of the vortex pump;
FIG. 4 is a planetary gear train;
FIG. 5 is a left side view of the internal structure of the peripheral pump;
FIG. 6 is a left side view of the internal structure of the vortex pump section;
FIG. 7 is a right side view of the internal structure of the volute pump;
FIG. 8 is a right side oblique view of the vortex pump;
FIG. 9 is a left side oblique view of the vortex pump;
FIG. 10 is a main sectional view of the vortex pump;
Detailed Description
The following description will further describe a specific embodiment of the present invention with reference to the accompanying drawings, and in fig. 1 to 10, the present invention includes a first stage vortex pump water inlet (1), a connecting pipe (2), a first stage vortex pump water outlet (3), a first stage vortex pump (4), a driving shaft (5), a bearing end cover 1(6), a bearing end cover 2(7), a bearing end cover 3(8), a bearing end cover 4(9), a secondary stage vortex pump water inlet (10), a secondary stage vortex pump (11), a secondary stage vortex pump water outlet (12), a gear ring (13), a planet wheel (14), a sun wheel (15), a planet carrier (16), a bearing 1(17), a first stage impeller (18), a first stage impeller lightening hole (19), a bearing 2(20), a bearing 3(21), a secondary stage impeller (22), a secondary stage impeller lightening hole (23), a bearing 4(24), a shaft sleeve 1(25), a driven shaft (26), A shaft sleeve 2(27), a limit boss (28) and the like.
As shown in figure 1, the invention relates to a two-stage speed-increasing peripheral pump device based on a planetary gear train, which mainly comprises a connecting pipeline (2), a driving shaft (5), a planetary gear (14), a primary impeller (18), a primary impeller lightening hole (19), a secondary impeller (22), a secondary impeller lightening hole (23), a driven shaft (26), a limiting boss (28) and the like, has a simple structure, and is convenient to realize that low-pressure fluid is changed into higher-pressure fluid through the action of the planetary gear train. As shown in fig. 1 and 5, the motor drives the driving shaft (5) to rotate at a low speed, the driving shaft (5) drives the first-stage impeller (18) to rotate at a low speed, and simultaneously drives the gear ring (13) and the planet carrier (16) to rotate at a low speed. The gear ring (13) and the planet carrier (16) are processed into a whole through casting and turning technology, the gear ring (13) is internally meshed with the planet wheel (14), and the planet wheel (14) is externally meshed with the sun wheel (15). The sun gear (15) is connected with the driven shaft (26), and the transmission ratio is changed under the action of the planetary gear train, so that the rotating speed of the driven shaft (26) is increased, and the rotating speed of the secondary impeller (22) is also greatly increased. One end of the connecting pipeline (2) is connected with the water outlet (3) of the primary vortex pump, the other end of the connecting pipeline is connected with the water inlet (10) of the secondary vortex pump, and low-pressure fluid flows in from the water inlet (1) of the primary vortex pump, becomes high-pressure fluid through the centrifugal action of the primary impeller (18), and flows out of the water outlet (3) of the primary vortex pump. Through the action of the connecting pipeline (2), the high-pressure fluid flows into the water inlet (10) of the secondary vortex pump, becomes higher-pressure fluid through the centrifugal action of the secondary impeller (22), and flows out of the water outlet (12) of the secondary vortex pump. The limiting boss (28) is connected with the planet wheel (14) and welded with a pump shell of the secondary vortex pump (11) into a whole, so that the planet wheel (14) is prevented from moving axially in the working process. The number of the lightening holes (19) of the primary impeller and the lightening holes (23) of the secondary impeller is not limited to three, but axial symmetry is satisfied. The more the number of the lightening holes is, the lighter the impeller rotor is, and the strength is improved.
Claims (4)
1. A two-stage speed-increasing peripheral pump device based on a planetary gear train is characterized by comprising a connecting pipeline (2), a driving shaft (5), a driven shaft (26), a primary peripheral pump (4), a secondary peripheral pump (11), a limiting boss (28) and a planetary gear device; the driving shaft (5) sequentially penetrates through the primary impeller (18) and the supporting frame (16), and the motor drives the driving shaft (5), the primary impeller (18), the gear ring (13) and the supporting frame (16) to rotate; a gear ring (13) in the planetary gear device drives a planetary gear (14), a sun gear (15), a driven shaft (26) and a secondary impeller (22) to rotate; one end of the connecting pipeline (2) is connected with the water outlet (3) of the primary vortex pump, and the other end of the connecting pipeline is connected with the water inlet (10) of the secondary vortex pump; low-pressure fluid enters from a water inlet (1) of the primary vortex pump, is changed into high-pressure fluid through the centrifugal action of a primary impeller (18), flows out of a water outlet (3) of the primary vortex pump, flows into a water inlet (10) of the secondary vortex pump through a connecting pipeline (2), and is changed into higher-pressure fluid through the centrifugal action of a secondary impeller (22), and flows out of a water outlet (12) of the secondary vortex pump; the limiting boss (28) is welded with the secondary vortex pump (11) to prevent the planet wheel (14) from moving axially;
the planetary gear device comprises a gear ring (13), a support frame (16), a planet wheel (14) and a sun wheel (15); the gear ring (13) and the support frame (16) are integrally formed by casting and turning technology; the gear ring (13) is internally meshed with the planet wheel (14), and the planet wheel (14) is externally meshed with the sun wheel (15);
the sun gear (15) is connected with the driven shaft (26) through a shaft sleeve (27), and the transmission ratio is changed under the action of the planetary gear train, so that the rotating speed of the sun gear (15) is increased, the driven shaft (26) rotates at a high speed, and meanwhile, the secondary impeller (22) also rotates at a high speed;
the limiting boss (28) is in contact with the planet wheel (14) and is welded with a pump shell of the secondary vortex pump (11) into a whole, so that the planet wheel (14) is prevented from moving axially in the working process.
2. The planetary gear train-based two-stage speed-increasing peripheral pump device as claimed in claim 1, wherein the primary impeller (18) and the secondary impeller (22) are respectively provided with primary impeller lightening holes (19) and secondary impeller lightening holes (23), and the primary impeller lightening holes (19) and the secondary impeller lightening holes (23) are circumferentially and uniformly distributed to maintain axial symmetry.
3. The two-stage speed-increasing peripheral pump device based on the planetary gear train as claimed in claim 2, wherein the number of the primary impeller lightening holes (19) and the secondary impeller lightening holes (23) is 3.
4. The two-stage speed-increasing peripheral pump device based on the planetary gear train as claimed in claim 3, wherein two side faces of the first-stage peripheral pump (4) are provided with a bearing end cover I (6) and a bearing end cover II (7) for fixing a driving shaft (5) penetrating through a central hole of the first-stage peripheral pump (4); two side surfaces of the secondary vortex pump (11) are provided with a bearing end cover III (8) and a bearing end cover IV (9); for securing a driven shaft (26) passing through the central bore of the secondary volute pump (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180779.2A CN109779920B (en) | 2019-03-11 | 2019-03-11 | Two-stage speed-increasing peripheral pump device based on planetary gear train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180779.2A CN109779920B (en) | 2019-03-11 | 2019-03-11 | Two-stage speed-increasing peripheral pump device based on planetary gear train |
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| Publication Number | Publication Date |
|---|---|
| CN109779920A CN109779920A (en) | 2019-05-21 |
| CN109779920B true CN109779920B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910180779.2A Active CN109779920B (en) | 2019-03-11 | 2019-03-11 | Two-stage speed-increasing peripheral pump device based on planetary gear train |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602491A1 (en) * | 1992-12-07 | 1994-06-22 | BHS-Bayerische Berg-, Hütten- und Salzwerke Aktiengesellschaft | Transmission and compressor system |
| US7722312B2 (en) * | 2005-12-14 | 2010-05-25 | Eaton Corporation | Fuel cell compressor system |
| CN203257693U (en) * | 2013-05-15 | 2013-10-30 | 浙江威格泵业有限公司 | Pipeline canned motor pump |
| CN203939764U (en) * | 2014-05-20 | 2014-11-12 | 宁波升鸿机械设备有限公司 | A kind of fan blade for blower |
-
2019
- 2019-03-11 CN CN201910180779.2A patent/CN109779920B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602491A1 (en) * | 1992-12-07 | 1994-06-22 | BHS-Bayerische Berg-, Hütten- und Salzwerke Aktiengesellschaft | Transmission and compressor system |
| US7722312B2 (en) * | 2005-12-14 | 2010-05-25 | Eaton Corporation | Fuel cell compressor system |
| CN203257693U (en) * | 2013-05-15 | 2013-10-30 | 浙江威格泵业有限公司 | Pipeline canned motor pump |
| CN203939764U (en) * | 2014-05-20 | 2014-11-12 | 宁波升鸿机械设备有限公司 | A kind of fan blade for blower |
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| Publication number | Publication date |
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| CN109779920A (en) | 2019-05-21 |
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