CN102400911A - Novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump - Google Patents
Novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump Download PDFInfo
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- CN102400911A CN102400911A CN2011104053220A CN201110405322A CN102400911A CN 102400911 A CN102400911 A CN 102400911A CN 2011104053220 A CN2011104053220 A CN 2011104053220A CN 201110405322 A CN201110405322 A CN 201110405322A CN 102400911 A CN102400911 A CN 102400911A
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- oil
- pump
- rotor
- bonnet
- sucking pipe
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Abstract
The invention discloses a novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump, which mainly comprises an oil suction pipe (1), an oil suction pipe check valve (2), a rotor pump check valve (3), a top plate (4), a rear cover (5), an outer rotor (6), an inner rotor (7), an oil pump shell (8) and a transmission shaft (9). By the novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump, the shortcomings of the conventional cycloidal rotor pump can be overcome, so the safety and the reliability of the rotor pump during working can be improved, the service life is prolonged and the whole working performance of a working machine is guaranteed. The novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump has a compact structure, stable performance and a wide application range.
Description
Technical field:
The present invention relates to a kind of novel single current to the clockwise and anticlockwise cycloid rotor pump, belong to the mechanical-hydraulic transmission field.
Technical background:
Cycloid gear pump is a kind of special crescent gear pump, and it has compact dimensions simple in structure, and noise is little, and running steadily allows advantages such as high rotating speed, has been widely used in fields such as mine and engineering machinery at present.Cycloid rotor pump is divided into single pump and double fluid to pump, in the application of engineering machinery, usually require with cycloid gear pump make single current to, could satisfy mechanical usage requirement like this.Traditional single current is made up of transmission shaft, pump case, locating stud, internal rotor, pump cover, external rotor, eccentric bushing to cycloid rotor pump; Be furnished with an eccentric bushing on the cylindrical of external rotor, the eccentric bushing cunning is contained in the pump case, and one 180 ° circular groove is arranged on the eccentric bushing; The locating stud that penetrates from pump case just in time has half to insert in the circular groove; The eccentric bushing cylindrical is concentric with internal rotor, and circle is concentric with external rotor in the eccentric bushing, and the inside and outside circle of eccentric bushing has certain throw of eccentric.When internal rotor is rotated counterclockwise; It drives external rotor and in eccentric bushing, rotates in the circular hole, because the drive of frictional force between external rotor and the eccentric bushing, eccentric bushing also rotates counterclockwise; Till the pin that is positioned blocks; Thereby separate the oil sucting cavity of pump and oil-discharging cavity the oil suction of a flow groove, another flow groove oil extraction; When internal rotor turned clockwise, external rotor drove eccentric bushing with frictional force equally and clockwise rotates, and eccentric position is changed to the transmission shaft opposite side, blocks up to the pin that is positioned, and eccentric bushing just in time turns over 180 °, and the inlet port and the oil drain out of flow groove do not change.This traditional cycloid gear pump mainly is to rotate through external rotor drive eccentric bushing to change eccentric position, thereby keeps the import and export direction of pump constant, and this requirement to the eccentric bushing of pump is very high, has increased difficulty of processing.In addition, because frictionally drives, under the frequent situation about changing of transmission shaft sense of rotation, each parts depreciation gets comparatively fast, and this makes the reliability decrease of pump, and finally has influence on the overall performance of working machine.
Summary of the invention:
The technical problem that the present invention solves: in order to overcome the defective that traditional cycloid rotor pump exists; Improve rotor pump safety reliability in the course of the work; Prolong its working life, guarantee the integral working of working machine, provide a kind of novel single current to the clockwise and anticlockwise cycloid rotor pump.
Technological scheme of the present invention
A kind of novel single current of the present invention mainly is made up of fuel sucking pipe (1), fuel sucking pipe one-way valve (2), rotor pump one-way valve (3), top board (4), bonnet (5), external rotor (6), internal rotor (7), oil pump case (8) and transmission shaft (9) to the clockwise and anticlockwise cycloid rotor pump.Fuel sucking pipe (1) is positioned at oil pump bottom, is connected with bonnet (5) through bolt, and a fuel sucking pipe one-way valve (2) is housed in the fuel sucking pipe (1); Transmission shaft (9) is connected with internal rotor (7) interference; And be bearing on oil pump case (8) and the bonnet (5), internal rotor (7) and external rotor (6) are loaded in the oil pump case (8), and bonnet (5) is connected through bolt with oil pump case (8); Top board (4) is positioned at the top of oil pump, is connected with bonnet (5) through bolt; The inner right ends of bonnet (5) has two first oil pockets (A) that are parallel to each other and second oil pocket (B); And there are four valve openings that are used to install rotor pump one-way valve (3) at the two ends of these two oil pockets; Inner first oil pocket (A), second oil pocket (B) of bonnet (5) is connected with the oil duct of fuel sucking pipe (1), the 3rd oil pocket (C) of top board (4) respectively through four rotor pump one-way valves (3) at two ends; The 3rd oil pocket (C) is connected with oil outlet (E) on the bonnet (5); One end of the 4th oil pocket (D) on the bonnet (5) is connected through the oil duct of fuel sucking pipe one-way valve (2) with fuel sucking pipe (1), and the other end links to each other with other oil circuit in the working machine.
Fuel sucking pipe one-way valve (2) and rotor pump one-way valve (3) all are made up of valve seat (10), spring seat (11), valve body (12), spring (13), valve gap (14) and O type circle (15); Valve body (12) side has three oil outlets; When the pressure of spring seat (11) lower end during greater than the elastic force of spring (13); Flow out from three oil outlets of valve body (12) side flow through valve seat (10) back of one-way valve opens, pressure oil; When the pressure of spring seat (11) upper end during greater than the pressure of lower end, spring seat (11) makes closed check valve under the effect of pressure oil and spring (4), thereby prevents that high pressure oil from flowing to low pressure chamber, and the high low pressure chamber is separated, and has guaranteed that the oil pressure of hyperbaric chamber does not descend; On valve gap (14) and the valve seat (10) O-ring seals (15) is housed respectively, is used to prevent the leakage in high low pressure chamber.
Description of drawings:
Fig. 1 is a plan view of the present invention
Fig. 2 is a left view of the present invention
Fig. 3 is a plan view of the present invention
Fig. 4 is a rear view of the present invention
Fig. 5 is an internal structure schematic representation of the present invention
Fig. 6 is the structural representation of fuel sucking pipe one-way valve and rotor pump one-way valve
Among the figure: 1, fuel sucking pipe, 2, the fuel sucking pipe one-way valve, 3, the rotor pump one-way valve, 4, top board, 5, bonnet; 6, external rotor, 7, internal rotor, 8, oil pump case, 9, transmission shaft, 10, valve seat; 11, spring seat, 12, valve body, 13, spring, 14, valve gap, 15, O shape circle
Embodiment:
Transmission shaft is connected with the power input element, carries out work thereby rotation drives oil pump.
1. when the rotation of transmission shaft clockwise direction, when transmission shaft (9) drove internal rotor (7) rotation, internal rotor (7) drove external rotor (6) and rotates in the same way; First oil pocket (A) in the pump housing forms low pressure area; The pressure of first oil pocket (A) is lower than barometric pressure, and the rotor pump one-way valve (3) that is connected with oil absorbing end in first oil pocket (A) is opened, and fuel sucking pipe one-way valve (2) is opened simultaneously; Oil in the oil sump gets into the intake side of rotor pump, i.e. first oil pocket (A); Second oil pocket (B) at rotor pump is then opposite; Form the zone of high pressure in second oil pocket (B); The rotor pump one-way valve (3) that is connected with oil absorbing end in second oil pocket (B) is owing to pressure difference is closed; The rotor pump one-way valve (3) that is connected with the 3rd oil pocket (C) in second oil pocket (B) is opened under the high pressure of second oil pocket (B), and high pressure oil gets into the 3rd oil pocket (C), and the pressure of the 3rd oil pocket (C) is higher than the pressure of oil pocket (A); The rotor pump one-way valve (3) that is connected with the 3rd oil pocket (C) in first oil pocket (A) is closed because of the 3rd oil pocket (C) high pressure, and the oil outlet (F) of high pressure oil on top board discharged.In this process, because the 4th oil pocket (D) links to each other with other oil duct in the working machine, oil pump can be come oil unnecessary in other oil duct through the oil duct absorption of fuel sucking pipe (1), so this oil circuit is that oil pump provides another suction passage.In the oil pump working procedure, can open or close the 4th oil pocket (D) according to actual needs.
2. work as transmission shaft and counterclockwise rotate, when transmission shaft (9) drove internal rotor (7) rotation, internal rotor (7) drove external rotor (6) and rotates in the same way; Second oil pocket (B) in the pump housing forms low pressure area; The pressure of second oil pocket (B) is lower than barometric pressure, and the rotor pump one-way valve (3) that is connected with oil absorbing end in second oil pocket (B) is opened, and fuel sucking pipe one-way valve (2) is opened simultaneously; Oil in the oil sump gets into the intake side of rotor pump, i.e. second oil pocket (B); First oil pocket (A) at rotor pump is then opposite; Form the zone of high pressure in first oil pocket (A); The rotor pump one-way valve (3) that is connected with oil absorbing end in first oil pocket (A) is owing to pressure difference is closed; The rotor pump one-way valve (3) that is connected with the 3rd oil pocket (C) in first oil pocket (A) is opened under the high pressure of first oil pocket (A), and high pressure oil gets into the 3rd oil pocket (C), and the pressure of the 3rd oil pocket (C) is higher than the pressure of second oil pocket (B); The rotor pump one-way valve (3) that is connected with the 3rd oil pocket (C) in second oil pocket (B) is closed because of the 3rd oil pocket (C) high pressure, and the oil outlet (F) of high pressure oil on top board discharged.In this process, because the 4th oil pocket (D) links to each other with other oil duct in the working machine, so oil pump can come oil unnecessary in other oil duct through the oil duct absorption of fuel sucking pipe (1), and this oil circuit is that oil pump provides another suction passage.In the oil pump working procedure, can open or close the 4th oil pocket (D) according to actual needs.
Claims (2)
1. a novel single current is to the clockwise and anticlockwise cycloid rotor pump; It is characterized in that: constitute by fuel sucking pipe (1), fuel sucking pipe one-way valve (2), rotor pump one-way valve (3), top board (4), bonnet (5), external rotor (6), internal rotor (7), oil pump case (8) and transmission shaft (9); Fuel sucking pipe (1) is positioned at oil pump bottom, is connected with bonnet (5) through bolt, and a fuel sucking pipe one-way valve (2) is housed in the fuel sucking pipe (1); Transmission shaft (9) is connected with internal rotor (7) interference; And be bearing on oil pump case (8) and the bonnet (5), internal rotor (7) and external rotor (6) are loaded in the oil pump case (8), and bonnet (5) is connected through bolt with oil pump case (8); Top board (4) is positioned at the top of oil pump, is connected with bonnet (5) through bolt; The inner right ends of bonnet (5) has two first oil pockets (A) that are parallel to each other and second oil pocket (B); There are four valve openings that are used to install rotor pump one-way valve (3) at the two ends of these two oil pockets; Inner first oil pocket (A), second oil pocket (B) of bonnet (5) is connected with the oil duct of fuel sucking pipe (1), the 3rd oil pocket (C) of top board (4) respectively through four rotor pump one-way valves (3) at two ends; The 3rd oil pocket (C) is connected with oil outlet (E) on the bonnet (5); One end of the 4th oil pocket (D) on the bonnet (5) is connected through the oil duct of fuel sucking pipe one-way valve (2) with fuel sucking pipe (1), and the other end links to each other with other oil circuit in the working machine.
2. a kind of novel single current according to claim 1 is to the clockwise and anticlockwise cycloid rotor pump; It is characterized in that: fuel sucking pipe one-way valve (2) and rotor pump one-way valve (3) all are made up of valve seat (10), spring seat (11), valve body (12), spring (13), valve gap (14) and O type circle (15), and valve body (12) side has three oil outlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405322.0A CN102400911B (en) | 2011-12-08 | 2011-12-08 | Novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110405322.0A CN102400911B (en) | 2011-12-08 | 2011-12-08 | Novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102400911A true CN102400911A (en) | 2012-04-04 |
| CN102400911B CN102400911B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110405322.0A Active CN102400911B (en) | 2011-12-08 | 2011-12-08 | Novel single-flow-direction clockwise and anticlockwise rotation cycloidal rotor pump |
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| CN (1) | CN102400911B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277558A (en) * | 1992-07-13 | 1994-01-11 | Marshall Long | Constant output pressure pump |
| JPH0960507A (en) * | 1995-06-14 | 1997-03-04 | Denso Corp | Valve timing adjusting device for internal combustion engine |
| CN2421431Y (en) * | 1999-07-27 | 2001-02-28 | 乐清市金宇发动机研究所 | Oscillating rotor type displacement pump |
| DE10254162A1 (en) * | 2002-11-20 | 2004-06-03 | Renner, Bernt | Vane pump or compressor for liquid or gas has rotor performing oscillating motion with two vanes in working chamber bounded by fixed partitions and has set of one-way valves |
| CN101139988A (en) * | 2007-10-12 | 2008-03-12 | 上海师范大学 | Pin-hole type cycloid rotor pump |
| CN202468310U (en) * | 2011-12-08 | 2012-10-03 | 贵州凯星液力传动机械有限公司 | Novel single-flow-direction counter-rotating cycloid rotor pump |
-
2011
- 2011-12-08 CN CN201110405322.0A patent/CN102400911B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277558A (en) * | 1992-07-13 | 1994-01-11 | Marshall Long | Constant output pressure pump |
| JPH0960507A (en) * | 1995-06-14 | 1997-03-04 | Denso Corp | Valve timing adjusting device for internal combustion engine |
| CN2421431Y (en) * | 1999-07-27 | 2001-02-28 | 乐清市金宇发动机研究所 | Oscillating rotor type displacement pump |
| DE10254162A1 (en) * | 2002-11-20 | 2004-06-03 | Renner, Bernt | Vane pump or compressor for liquid or gas has rotor performing oscillating motion with two vanes in working chamber bounded by fixed partitions and has set of one-way valves |
| CN101139988A (en) * | 2007-10-12 | 2008-03-12 | 上海师范大学 | Pin-hole type cycloid rotor pump |
| CN202468310U (en) * | 2011-12-08 | 2012-10-03 | 贵州凯星液力传动机械有限公司 | Novel single-flow-direction counter-rotating cycloid rotor pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102400911B (en) | 2014-04-16 |
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