CN103758752A - Eight-blade differential speed pump driven by Pascal non-circular gears - Google Patents
Eight-blade differential speed pump driven by Pascal non-circular gears Download PDFInfo
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- CN103758752A CN103758752A CN201410039749.7A CN201410039749A CN103758752A CN 103758752 A CN103758752 A CN 103758752A CN 201410039749 A CN201410039749 A CN 201410039749A CN 103758752 A CN103758752 A CN 103758752A
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- noncircular gear
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Abstract
The invention discloses an eight-blade differential speed pump driven by Pascal non-circular gears. The conventional differential speed pump has the problems of difficulty in pressure pulsation optimization, liquid trapping and the like. Both a first Pascal non-circular gear and a second Pascal non-circular gear of the eight-blade differential speed pump are fixed with an input shaft; both a first conjugate Pascal non-circular gear and a first impeller are fixed with an output shaft; the first conjugate Pascal non-circular gear is engaged with the first Pascal non-circular gear; a second conjugate Pascal non-circular gear and a second impeller are fixedly connected with a shaft sleeve; the shaft sleeve is moveably sleeved upon the output shaft; a first liquid discharging port, a first liquid suction port, a second liquid discharging port, a second liquid suction port, a third liquid discharging port, a third liquid suction port, a fourth liquid discharging port and a fourth liquid suction port are formed in a pump shell in the circumferential direction in sequence; both the first impeller and the second impeller are provided with four blades; a one-way pressure relief valve is mounted in each of the blades. The eight-blade differential speed pump driven by the Pascal non-circular gears has large displacement and stable flow; a non-uniform speed law is easy to adjust; and the problem of liquid trapping is solved effectively.
Description
Technical field
The invention belongs to displacement pump technical field, relate to blade differential pump, be specifically related to eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives.
Background technique
The liquid pump that universal machine is conventional has reciprocating pump, plunger pump, diaphragm pump, roller pump and centrifugal pump, wherein: (post) plug pump of living has higher outlet pressure, but requires the sealing between piston and cylinder barrel reliable, and pressure surge is large; Diaphragm pump can produce a liquid stream more stably when multi-cylinder, but complex structure; Roller pump delivery is uniformly when stabilization of speed, and along with the raising of pressure, leakage rate increases, and the lifting rate of pump and efficiency are corresponding to be reduced; Centrifugal pump structure is simple, easily manufacture, but its discharge capacity is large, and pressure is low, for the less demanding occasion of working pressure.There is defect separately in these pumps, can't meet well the constant flow rate of part special mechanical requirement, the demand of high pressure.
Existing differential pump mainly contains following several according to the difference of driving mechanism:
Rotating guide-bar-gear type blade differential pump, its drive system is born alternate load, produces gear tooth noise, and each pair clearance also can cause impact noise when larger.
Universal-joint gear wheel mechanism drive vane differential pump, the input shaft of its universal joint mechanism and the angle of output shaft are key parameters that affects pump performance.This angle is larger, and pump delivery is also larger, and still, along with the increase at this angle, the flow pulsation aggravation of pump and the transmission efficiency of universal joint reduce.
Distortion eccentric circle noncircular gear drive vane differential pump, it is mainly eccentricity and deformation coefficient that its eccentric circle non-circular gear pitch curve is adjusted parameter, adjustment amount is limited, adjust precision not high, cause velocity ratio optimization, adjust inconvenience, design dumbly, be unfavorable for further optimal design, be difficult to optimize the problems such as pressure pulsation, tired liquid.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, eight blade differential pumps that provide a kind of Bath main officer of Tibet noncircular gear to drive, this blade differential pump displacement is large, pressure is high, stability of flow, compact structure; Bath main officer of Tibet non-circular gear pitch curve has six to adjust parameter, and the variable speed rule of its driving mechanism is easily adjusted, convenient function optimization; By unidirectional Decompression valves is installed in blade, during pressure limit, get through contiguous enclosed cavity, effectively solve the tired liquid problem of existing differential pump.
The present invention includes driver part and differential pump parts.
Described driver part comprises driving gearbox, input shaft, output shaft, the first Bath main officer of Tibet noncircular gear, the second Bath main officer of Tibet noncircular gear, the first conjugation Bath main officer of Tibet noncircular gear, the second conjugation Bath main officer of Tibet noncircular gear and axle sleeve; Motor is connected with input shaft by coupling, and input shaft is the two side at driving gearbox by two bearings; The first described Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear are all fixedly mounted on input shaft; The two ends of output shaft respectively by bearings on the tank wall of driving gearbox and pump case, the first conjugation Bath main officer of Tibet noncircular gear is arranged on output shaft, and with the first Bath main officer of Tibet noncircular gear engagement; The second conjugation Bath main officer of Tibet noncircular gear and the second impeller are all cemented on axle sleeve, and axle sleeve kink is on output shaft, and the second conjugation Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear mesh.
Described differential pump parts comprise pump case, the first impeller, the second impeller and unidirectional Decompression valves; Described pump case along the circumferential direction offers the first liquid port, the first liquid sucting port, the second liquid port, the second liquid sucting port, the 3rd liquid port, the 3rd liquid sucting port, the 4th liquid port and the 4th liquid sucting port successively; The first liquid port, the second liquid port, the 3rd liquid port and the 4th liquid port are uniformly distributed along the circumference, and the first liquid sucting port, the second liquid sucting port, the 3rd liquid sucting port and the 4th liquid sucting port are uniformly distributed along the circumference; The first impeller is fixed on output shaft; The first described impeller and the second impeller are uniformly distributed with four blades along the circumference, the outer arced surface of every blade and the laminating of the inwall of pump case; Along the circumferential direction, the alternate setting of blade of the blade of the first impeller and the second impeller, all forms an enclosed cavity between every adjacent two blades; All blade interior are all provided with a unidirectional Decompression valves, and two of unidirectional Decompression valves is communicated with the enclosed cavity of these blade both sides respectively, and all unidirectional Decompression valves directions are consistent with wheel rotation direction.
The first described Bath main officer of Tibet noncircular gear and parameter and the structure of the second Bath main officer of Tibet noncircular gear are in full accord, parameter and the structure of the first conjugation Bath main officer of Tibet noncircular gear and the second conjugation Bath main officer of Tibet noncircular gear are in full accord, and the first Bath main officer of Tibet noncircular gear, the second Bath main officer of Tibet noncircular gear, the first conjugation Bath main officer of Tibet noncircular gear and the second conjugation Bath main officer of Tibet noncircular gear are quadravalence noncircular gear; The initial installation phase difference of the initial installation phase difference of the first Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear, the first conjugation Bath main officer of Tibet noncircular gear and the second conjugation Bath main officer of Tibet noncircular gear is 45 °.
The beneficial effect that the present invention has is:
The present invention adopts Bath main officer of Tibet non-circular gear mechanism, Bath main officer of Tibet non-circular gear pitch curve has six to adjust parameter, compare existing distortion eccentric circle noncircular gear adjustable parameter many, therefore Bath main officer of Tibet noncircular gear variable speed transmission rule is easily adjusted, and easily realizes the optimization of the performances such as differential pump delivery, pressure, flow.By unidirectional Decompression valves is installed in blade, during pressure limit, get through contiguous enclosed cavity, effectively solve the tired liquid problem of existing differential pump.The differential pump liquid sucting port and the liquid port that due to Bath main officer of Tibet non-circular gear mechanism, drive are uniformly distributed along the circumference, and radial equilibrium is good, and non-constant speed transmission is for rotatablely moving, and therefore operate steadily reliably, radially work loads balance, the controllability of pulsing are good; Blade is many, discharge capacity is large, and internal surface and the blade shape of pump case are simple, and volumetric efficiency is high.
Core institution of the present invention is two pairs of different Bath main officer of Tibet noncircular gears that phase place is installed, and parts are few, compact structure.
Accompanying drawing explanation
Fig. 1 is kinematic sketch of mechanism of the present invention;
Fig. 2 is the overall structure sectional view of differential pump parts in the present invention;
Fig. 3 is the meshing relation schematic diagram of Bath main officer of Tibet non-circular gear pitch curve when initial mounting point in the present invention.
In figure: 1, driving gearbox, 2, input shaft, 3, output shaft, 4, the first Bath main officer of Tibet noncircular gear, 5, the second Bath main officer of Tibet noncircular gear, 6, the first conjugation Bath main officer of Tibet noncircular gear, 7, the second conjugation Bath main officer of Tibet noncircular gear, 8, axle sleeve, 9, coupling, 10, motor, 11, pump case, 11-1, the first liquid port, 11-2, the first liquid sucting port, 11-3, the second liquid port, 11-4, the second liquid sucting port, 11-5, the 3rd liquid port, 11-6, the 3rd liquid sucting port, 11-7, the 4th liquid port, 11-8, the 4th liquid sucting port, 12, the first impeller, 13, the second impeller, 14, unidirectional Decompression valves.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As illustrated in fig. 1 and 2, eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives comprise driver part and differential pump parts.
Driver part comprises driving gearbox 1, input shaft 2, output shaft 3, the first Bath main officer of Tibet noncircular gear 4, the second Bath main officer of Tibet noncircular gear 5, the first conjugation Bath main officer of Tibet noncircular gear 6, the second conjugation Bath main officer of Tibet noncircular gear 7 and axle sleeve 8.Input shaft 2 and output shaft 3 are separately positioned on the two ends of gear-box 1; Input shaft 2 is by two bearings in the two side of driving gearbox 1, and motor 10, by coupling 9, power is passed to input shaft 2, the first Bath main officer of Tibet noncircular gears 4 and the second Bath main officer of Tibet noncircular gear 5 is all fixedly mounted on input shaft 2; The two ends of output shaft 3 respectively by bearings on the tank wall of driving gearbox 1 and pump case 11, the first conjugation Bath main officer of Tibet noncircular gear 6 is fixedly mounted on output shaft 3, and with the first Bath main officer of Tibet noncircular gear 4 engagement; The second conjugation Bath main officer of Tibet noncircular gear 7 and the second impeller 13 are all cemented on axle sleeve 8, and axle sleeve 8 kinks are on output shaft 3; The second conjugation Bath main officer of Tibet noncircular gear 7 and the second Bath main officer of Tibet noncircular gear 5 engagements.
Differential pump parts comprise pump case 11, the first impeller 12, the second impeller 13 and unidirectional Decompression valves 14.Pump case 11 along the circumferential direction offers the first liquid port 11-1, the first liquid sucting port 11-2, the second liquid port 11-3, the second liquid sucting port 11-4, the 3rd liquid port 11-5, the 3rd liquid sucting port 11-6, the 4th liquid port 11-7 and the 4th liquid sucting port 11-8 successively; The first liquid port 11-1, the second liquid port 11-3, the 3rd liquid port 11-5 and the 4th liquid port 11-7 are uniformly distributed along the circumference, and the first liquid sucting port 11-2, the second liquid sucting port 11-4, the 3rd liquid sucting port 11-6 and the 4th liquid sucting port 11-8 are uniformly distributed along the circumference; The first impeller 12 is fixedly mounted on output shaft 3; The first impeller 12 and the second impeller 13 are uniformly distributed with four blades along the circumference, the inwall laminating of the outer arced surface of every blade and pump case 11; Along the circumferential direction, the alternate setting of blade of the blade of the first impeller 12 and the second impeller 13, all forms an enclosed cavity between every adjacent two blades; A unidirectional Decompression valves 14 is all installed in all blades, and two of unidirectional Decompression valves 14 is communicated with the enclosed cavity of these blade both sides respectively; The pressure release direction of all unidirectional Decompression valvess 14 is consistent with wheel rotation direction.
As shown in Figure 3, parameter and the structure of the first Bath main officer of Tibet noncircular gear 4 and the second Bath main officer of Tibet noncircular gear 5 are in full accord, parameter and the structure of the first conjugation Bath main officer of Tibet noncircular gear 6 and the second conjugation Bath main officer of Tibet noncircular gear 7 are in full accord, and the first Bath main officer of Tibet noncircular gear 4, the second Bath main officer of Tibet noncircular gear 5, the first conjugation Bath main officer of Tibet noncircular gear 6 and the second conjugation Bath main officer of Tibet noncircular gear 7 are quadravalence noncircular gear; The initial installation phase angle of the first Bath main officer of Tibet noncircular gear 4 is
, the initial installation phase angle of the second Bath main officer of Tibet noncircular gear 5 is
; The initial installation phase difference of the first Bath main officer of Tibet noncircular gear 4 and the second Bath main officer of Tibet noncircular gear 5, the first conjugation Bath main officer of Tibet noncircular gear 6 and the second conjugation Bath main officer of Tibet noncircular gear 7 is
-
its value is 45 °, the differential of realizing the first impeller 12 and the second impeller 13 rotates, make the volume cyclically-varying of differential pump enclosed cavity, at the first liquid port 11-1, the second liquid port 11-3, the 3rd liquid port 11-5 and the 4th liquid port 11-7, produce discharge opeing, at the first liquid sucting port 11-2, the second liquid sucting port 11-4, the 3rd liquid sucting port 11-6 and the 4th liquid sucting port 11-8, produce imbibition.Because the non-at the uniform velocity transmission of Bath main officer of Tibet noncircular gear is continuous, at enclosed cavity, in complete when airtight, blade still has differential to rotate, and this will make enclosed cavity pressure surpass limit value, and unidirectional Decompression valves 14 is got through pressure release by vicinity enclosed cavity, prevents from being stranded liquid.
The working principle of eight blade differential pumps that this Bath main officer of Tibet noncircular gear drives:
Claims (1)
1. eight blade differential pumps that Bath main officer of Tibet noncircular gear drives, comprise driver part and differential pump parts, it is characterized in that:
Described driver part comprises driving gearbox, input shaft, output shaft, the first Bath main officer of Tibet noncircular gear, the second Bath main officer of Tibet noncircular gear, the first conjugation Bath main officer of Tibet noncircular gear, the second conjugation Bath main officer of Tibet noncircular gear and axle sleeve; Motor is connected with input shaft by coupling, and input shaft is the two side at driving gearbox by two bearings; The first described Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear are all fixedly mounted on input shaft; The two ends of output shaft respectively by bearings on the tank wall of driving gearbox and pump case, the first conjugation Bath main officer of Tibet noncircular gear is arranged on output shaft, and with the first Bath main officer of Tibet noncircular gear engagement; The second conjugation Bath main officer of Tibet noncircular gear and the second impeller are all cemented on axle sleeve, and axle sleeve kink is on output shaft, and the second conjugation Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear mesh;
Described differential pump parts comprise pump case, the first impeller, the second impeller and unidirectional Decompression valves; Described pump case along the circumferential direction offers the first liquid port, the first liquid sucting port, the second liquid port, the second liquid sucting port, the 3rd liquid port, the 3rd liquid sucting port, the 4th liquid port and the 4th liquid sucting port successively; The first liquid port, the second liquid port, the 3rd liquid port and the 4th liquid port are uniformly distributed along the circumference, and the first liquid sucting port, the second liquid sucting port, the 3rd liquid sucting port and the 4th liquid sucting port are uniformly distributed along the circumference; The first impeller is fixed on output shaft; The first described impeller and the second impeller are uniformly distributed with four blades along the circumference, the outer arced surface of every blade and the laminating of the inwall of pump case; Along the circumferential direction, the alternate setting of blade of the blade of the first impeller and the second impeller, all forms an enclosed cavity between every adjacent two blades; All blade interior are all provided with a unidirectional Decompression valves, and two of unidirectional Decompression valves is communicated with the enclosed cavity of these blade both sides respectively, and all unidirectional Decompression valves directions are consistent with wheel rotation direction;
The first described Bath main officer of Tibet noncircular gear and parameter and the structure of the second Bath main officer of Tibet noncircular gear are in full accord, parameter and the structure of the first conjugation Bath main officer of Tibet noncircular gear and the second conjugation Bath main officer of Tibet noncircular gear are in full accord, and the first Bath main officer of Tibet noncircular gear, the second Bath main officer of Tibet noncircular gear, the first conjugation Bath main officer of Tibet noncircular gear and the second conjugation Bath main officer of Tibet noncircular gear are quadravalence noncircular gear; The initial installation phase difference of the initial installation phase difference of the first Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear, the first conjugation Bath main officer of Tibet noncircular gear and the second conjugation Bath main officer of Tibet noncircular gear is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039749.7A CN103758752B (en) | 2014-01-27 | 2014-01-27 | Eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039749.7A CN103758752B (en) | 2014-01-27 | 2014-01-27 | Eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758752A true CN103758752A (en) | 2014-04-30 |
| CN103758752B CN103758752B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410039749.7A Active CN103758752B (en) | 2014-01-27 | 2014-01-27 | Eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555425Y (en) * | 2002-05-19 | 2003-06-11 | 哈尔滨工业大学 | 8-blade differential pump |
| US20080240918A1 (en) * | 2007-03-30 | 2008-10-02 | Samsung Techwin Co., Ltd. | Gear case assembly |
| CN102677186A (en) * | 2012-06-04 | 2012-09-19 | 浙江理工大学 | Mixed-order Pascal curve non-circular gear cross winding mechanisms of reeling machine |
| CN203297094U (en) * | 2013-06-17 | 2013-11-20 | 浙江理工大学 | Differential velocity vane pump driven by incomplete gear mechanisms |
| US20130309120A1 (en) * | 2011-01-31 | 2013-11-21 | Robert Bosch Gmbh | Double internal gear wheel pump |
| CN203730299U (en) * | 2014-01-27 | 2014-07-23 | 浙江理工大学 | Pascal non-circular gear-driven eight-blade differential pump |
-
2014
- 2014-01-27 CN CN201410039749.7A patent/CN103758752B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555425Y (en) * | 2002-05-19 | 2003-06-11 | 哈尔滨工业大学 | 8-blade differential pump |
| US20080240918A1 (en) * | 2007-03-30 | 2008-10-02 | Samsung Techwin Co., Ltd. | Gear case assembly |
| US20130309120A1 (en) * | 2011-01-31 | 2013-11-21 | Robert Bosch Gmbh | Double internal gear wheel pump |
| CN102677186A (en) * | 2012-06-04 | 2012-09-19 | 浙江理工大学 | Mixed-order Pascal curve non-circular gear cross winding mechanisms of reeling machine |
| CN203297094U (en) * | 2013-06-17 | 2013-11-20 | 浙江理工大学 | Differential velocity vane pump driven by incomplete gear mechanisms |
| CN203730299U (en) * | 2014-01-27 | 2014-07-23 | 浙江理工大学 | Pascal non-circular gear-driven eight-blade differential pump |
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| CN103758752B (en) | 2016-02-17 |
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Effective date of registration: 20190924 Address after: 266101 Shandong Province, Qingdao city Laoshan District, Keyuan Road No. 1 23 storey block B room 2319 Patentee after: Qingdao fruit science and technology service platform Co., Ltd. Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park No. 2 Street No. 928 Patentee before: Zhejiang University of Technology |
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Effective date of registration: 20191226 Address after: 314000 Room 308, building 2, Jiaxing Yongming Petrochemical Co., Ltd., west of Pinghai Road, Zhapu Development Zone, port area, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Xing Xing New Energy Technology Co., Ltd. Address before: 266101 Shandong Province, Qingdao city Laoshan District, Keyuan Road No. 1 23 storey block B room 2319 Patentee before: Qingdao fruit science and technology service platform Co., Ltd. |