CN103758752B - Eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives - Google Patents

Eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives Download PDF

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Publication number
CN103758752B
CN103758752B CN201410039749.7A CN201410039749A CN103758752B CN 103758752 B CN103758752 B CN 103758752B CN 201410039749 A CN201410039749 A CN 201410039749A CN 103758752 B CN103758752 B CN 103758752B
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China
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tibet
bath main
noncircular gear
main officer
liquid
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CN201410039749.7A
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CN103758752A (en
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徐高欢
陈建能
李国瑶
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Zhejiang Xing Xing New Energy Technology Co Ltd
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Zhejiang University of Technology ZJUT
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Abstract

The invention discloses eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives.Existing differential pump is difficult to optimize the problem such as pressure pulsation, tired liquid.First Bath main officer of Tibet noncircular gear of the present invention and the second Bath main officer of Tibet noncircular gear are all fixed with input shaft; First conjugation Bath main officer of Tibet noncircular gear and the first impeller are all fixed with output shaft, and the first conjugation Bath main officer of Tibet noncircular gear engages with the first Bath main officer of Tibet noncircular gear; Second conjugation Bath main officer of Tibet noncircular gear and the second impeller are cemented on axle sleeve, and axle sleeve kink is on output shaft; 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; First impeller and the second impeller are equipped with four blades, and all blade interior are all provided with a unidirectional Decompression valves.Discharge capacity of the present invention is large, stability of flow, and variable speed rule easily adjusts, and effectively solves tired liquid problem.

Description

Eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives
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: live (post) fills in pump higher outlet pressure, but require that the sealing between piston and cylinder barrel is reliable, and pressure surge is large; Diaphragm pump can produce a more stable liquid stream when multi-cylinder, but complex structure; Roller pump delivery is uniform when stabilization of speed, and along with the raising of pressure, leakage rate increases, the lifting rate of pump and the corresponding reduction of efficiency; Centrifugal pump structure is simple, easily manufactures, but its discharge capacity is large, and pressure is low, for the less demanding occasion of working pressure.There is respective defect in these pumps, can't meet the constant flow rate of part special mechanical requirement, the demand of high pressure well.
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 bears alternate load, produces gear tooth noise, and also can cause impact noise when each pair clearance is 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 the key parameters affecting pump performance.This angle is larger, and pump delivery is also larger, but 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, its eccentric circle non-circular gear pitch curve adjustment parameter mainly eccentricity and deformation coefficient, adjustment amount is limited, Adjustment precision is not high, cause velocity ratio optimization, adjustment inconvenience, design dumb, be unfavorable for further optimal design, be difficult to optimize the problem 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 a kind of Bath main officer of Tibet noncircular gear drives be provided, 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 easily adjusts, convenient function optimization; By installing unidirectional Decompression valves in blade, during pressure limit, getting through contiguous enclosed cavity, effectively solving existing differential pump and being stranded liquid problem.
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 passes through two bearings in the two side of driving gearbox; 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 are respectively by bearings on the tank wall of driving gearbox and pump case, and the first conjugation Bath main officer of Tibet noncircular gear is arranged on output shaft, and engages with the first Bath main officer of Tibet noncircular gear; 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 engages with the second Bath main officer of Tibet noncircular gear.
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; 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; First impeller is fixed on output shaft; The first described impeller and the second impeller are uniformly distributed with four blades along the circumference, and the outer arced surface of every sheet blade and the inwall of pump case are fitted; Along the circumferential direction, the blade of the first impeller and the alternate setting of blade of the second impeller, all form an enclosed cavity between every adjacent two panels blade; 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.
Parameter and the structure of the first described Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear are completely the same, 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 completely the same, 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 easily adjusts, and easily realizes the optimization of the performances such as differential pump delivery, pressure, flow.By installing unidirectional Decompression valves in blade, during pressure limit, getting through contiguous enclosed cavity, effectively solving existing differential pump and being stranded liquid problem.The differential pump liquid sucting port driven due to Bath main officer of Tibet non-circular gear mechanism and liquid port are uniformly distributed along the circumference, and radial equilibrium is good, and non-constant speed drive is rotary motion, and reliable, the radial work loads that therefore operates steadily balance, pulsation controllability are good; Blade is many, discharge capacity is large, and simply, volumetric efficiency is high for the internal surface of pump case and blade shape.
Core institution of the present invention is two install the Bath main officer of Tibet noncircular gear of phase place to difference, 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 makeup location in the present invention.
In figure: 1, driving gearbox, 2, input shaft, 3, output shaft, 4, first Bath main officer of Tibet noncircular gear, 5, second Bath main officer of Tibet noncircular gear, 6, first conjugation Bath main officer of Tibet noncircular gear, 7, second conjugation Bath main officer of Tibet noncircular gear, 8, axle sleeve, 9, coupling, 10, motor, 11, pump case, 11-1, first liquid port, 11-2, first liquid sucting port, 11-3, second liquid port, 11-4, second liquid sucting port, 11-5, 3rd liquid port, 11-6, 3rd liquid sucting port, 11-7, 4th liquid port, 11-8, 4th liquid sucting port, 12, first impeller, 13, 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, first Bath main officer of Tibet noncircular gear 4, second Bath main officer of Tibet noncircular gear 5, first conjugation Bath main officer of Tibet noncircular gear 6, 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 power is passed to input shaft 2 by coupling 9 by motor 10, and the first Bath main officer of Tibet noncircular gear 4 and the second Bath main officer of Tibet noncircular gear 5 are all fixedly mounted on input shaft 2; The two ends of output shaft 3 are respectively by bearings on the tank wall of driving gearbox 1 and pump case 11, and the first conjugation Bath main officer of Tibet noncircular gear 6 is fixedly mounted on output shaft 3, and engages with the first Bath main officer of Tibet noncircular gear 4; 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 kink is on output shaft 3; Second conjugation Bath main officer of Tibet noncircular gear 7 engages with the second Bath main officer of Tibet noncircular gear 5.
Differential pump parts comprise pump case 11, first impeller 12, 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; 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; First impeller 12 is fixedly mounted on output shaft 3; First impeller 12 and the second impeller 13 are uniformly distributed with four blades along the circumference, and the outer arced surface of every sheet blade and the inwall of pump case 11 are fitted; Along the circumferential direction, the blade of the first impeller 12 and the alternate setting of blade of the second impeller 13, all form an enclosed cavity between every adjacent two panels blade; All be provided with a unidirectional Decompression valves 14 in all blades, 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 completely the same, 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 completely the same, and the first Bath main officer of Tibet noncircular gear 4, second Bath main officer of Tibet noncircular gear 5, 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, 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 realizing the first impeller 12 and the second impeller 13 rotates, make the volume cyclically-varying of differential pump enclosed cavity, produce discharge opeing 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 imbibition 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.Because the non-at the uniform velocity transmission of Bath main officer of Tibet noncircular gear is continuous print, enclosed cavity be in complete airtight time, blade still has differential to rotate, and this will make enclosed cavity pressure exceed limit value, and vicinity enclosed cavity is got through pressure release by unidirectional Decompression valves 14, prevents tired liquid.
The working principle of eight blade differential pumps that this Bath main officer of Tibet noncircular gear drives:
Power is passed to the first Bath main officer of Tibet noncircular gear 4 and the second Bath main officer of Tibet noncircular gear 5 by coupling 9 and input shaft 2 by motor 10.First Bath main officer of Tibet noncircular gear 4 engages with the first conjugation Bath main officer of Tibet noncircular gear 6, second Bath main officer of Tibet noncircular gear 5 engages with the second conjugation Bath main officer of Tibet noncircular gear 7, power is passed to the first impeller 12 by output shaft 3 by the first conjugation Bath main officer of Tibet noncircular gear 6, power is passed to the second impeller 13 by axle sleeve 8 by the second conjugation Bath main officer of Tibet noncircular gear 7, axle sleeve 8 and the second conjugation Bath main officer of Tibet noncircular gear 7 consolidation, axle sleeve 8 kink is on output shaft 3.The installation phase place of two pairs of Bath main officer of Tibet noncircular gear pairs is different, and the differential realizing the first impeller 12 and the second impeller 13 rotates, thus realizes imbibition and discharge opeing.

Claims (1)

1. eight blade differential pumps of Bath main officer of Tibet noncircular gear driving, 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 passes through two bearings in the two side of driving gearbox; 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 are respectively by bearings on the tank wall of driving gearbox and pump case, and the first conjugation Bath main officer of Tibet noncircular gear is arranged on output shaft, and engages with the first Bath main officer of Tibet noncircular gear; 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 engages with the second Bath main officer of Tibet noncircular gear;
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; 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; First impeller is fixed on output shaft; The first described impeller and the second impeller are uniformly distributed with four blades along the circumference, and the outer arced surface of every sheet blade and the inwall of pump case are fitted; Along the circumferential direction, the blade of the first impeller and the alternate setting of blade of the second impeller, all form an enclosed cavity between every adjacent two panels blade; 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;
Parameter and the structure of the first described Bath main officer of Tibet noncircular gear and the second Bath main officer of Tibet noncircular gear are completely the same, 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 completely the same, 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 °.
CN201410039749.7A 2014-01-27 2014-01-27 Eight blade differential pumps that a kind of Bath main officer of Tibet noncircular gear drives Active CN103758752B (en)

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
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
KR100873043B1 (en) * 2007-03-30 2008-12-09 삼성테크윈 주식회사 Gear case assembly
EP2670639A1 (en) * 2011-01-31 2013-12-11 Robert Bosch GmbH Double internal gear wheel pump
CN102677186B (en) * 2012-06-04 2014-04-16 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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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.