CN102400911B - 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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- CN102400911B CN102400911B CN201110405322.0A CN201110405322A CN102400911B CN 102400911 B CN102400911 B CN 102400911B CN 201110405322 A CN201110405322 A CN 201110405322A CN 102400911 B CN102400911 B CN 102400911B
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- oil
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- 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 single current to clockwise and anticlockwise cycloid rotor pump, belong to 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 smooth running allows the advantages such as high rotating speed, has now been widely used in the fields such as mine and engineering machinery.Cycloid rotor pump is divided into single pump and double-flow pump, in the application of engineering machinery, usually require by cycloid gear pump make single current to, could meet mechanical usage requirement like this.Traditional single current is consisted of transmission shaft, pump case, locating stud, internal rotor, pump cover, external rotor, eccentric bushing to cycloid rotor pump, on the cylindrical of external rotor, is furnished with an eccentric bushing, eccentric bushing cunning is contained in pump case, on eccentric bushing, there is the circular groove of 180 °, the locating stud penetrating from pump case just in time has half to insert in circular groove, eccentric bushing cylindrical is concentric with internal rotor, and eccentric bushing inner circle is concentric with external rotor, and the inside and outside circle of eccentric bushing has certain throw of eccentric.When internal rotor is rotated counterclockwise, it drives external rotor in circular hole, to rotate in eccentric bushing, drive due to frictional force between external rotor and eccentric bushing, eccentric bushing also rotates counterclockwise, until be positioned, pin blocks, thereby the oil sucting cavity of pump and oil-discharging cavity are separated to the oil suction of a flow groove, another flow groove oil extraction; When internal rotor turns clockwise, external rotor drives eccentric bushing to clockwise rotate by frictional force equally, and eccentric position is changed to transmission shaft opposite side, until the pin that is positioned blocks, eccentric bushing just in time turns over 180 °, and inlet port and the oil drain out of flow groove do not change.This traditional cycloid gear pump is mainly to drive eccentric bushing to rotate to change eccentric position by external rotor, thereby keeps the import and export direction of pump constant, and this is very high to the requirement of the eccentric bushing of pump, has increased difficulty of processing.In addition, because frictionally drives, the in the situation that of the frequent change of transmission shaft sense of rotation, each parts depreciation obtains 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: the defect existing in order to overcome traditional cycloid rotor pump, improve rotor pump safety reliability in the course of the work, extend its working life, guarantee the integral working of working machine, provide a kind of single current to clockwise and anticlockwise cycloid rotor pump.
Technological scheme of the present invention
A kind of single current of the present invention is mainly consisted 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 clockwise and anticlockwise cycloid rotor pump.Fuel sucking pipe (1) is positioned at oil pump bottom, by bolt, be connected with bonnet (5), a fuel sucking pipe one-way valve (2) is housed in fuel sucking pipe (1), transmission shaft (9) is connected with internal rotor (7) interference, and be bearing on oil pump case (8) and bonnet (5), internal rotor (7) and external rotor (6) are loaded in oil pump case (8), bonnet (5) is bolted with oil pump case (8), top board (4) is positioned at the top of oil pump, by bolt, is connected with bonnet (5), there are two the first oil pockets (A) that are parallel to each other and the second oil pocket (B) in the inner two ends, left and right of bonnet (5), and the two ends of these two oil pockets have four for the valve opening of rotor pump one-way valve (3) is installed, the first oil pocket (A) that bonnet (5) is inner, four the rotor pump one-way valves (3) of the second oil pocket (B) by two ends respectively with the oil duct of fuel sucking pipe (1), the 3rd oil pocket (C) of top board (4) is connected, the 3rd oil pocket (C) is connected with the oil outlet (E) on bonnet (5), one end of the 4th oil pocket (D) on bonnet (5) is connected with the oil duct of fuel sucking pipe (1) by fuel sucking pipe one-way valve (2), the other end is connected with other oil circuit in working machine.
Fuel sucking pipe one-way valve (2) and rotor pump one-way valve (3) are all comprised 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 is greater than the elastic force of spring (13), one-way valve opens, pressure oil three oil outlets from valve body (12) side after valve seat (10) of flowing through flow out; When the pressure of spring seat (11) upper end is greater than the pressure of lower end, spring seat (11) makes closed check valve under the effect of pressure oil and spring (4), thereby prevent that high-pressure oil flow is to low-pressure cavity, by high low pressure chamber separately, guaranteed that the oil pressure of hyperbaric chamber does not decline; On valve gap (14) and valve seat (10), an O-ring seals (15) is respectively housed, for preventing the leakage in high low pressure chamber.
Accompanying drawing explanation:
Fig. 1 is plan view of the present invention
Fig. 2 is left view of the present invention
Fig. 3 is plan view of the present invention
Fig. 4 is rear view of the present invention
Fig. 5 is internal structure schematic diagram of the present invention
Fig. 6 is the structural representation of fuel sucking pipe one-way valve and rotor pump one-way valve
In figure: 1, fuel sucking pipe, 2, fuel sucking pipe one-way valve, 3, 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 power input element, thereby rotarily drive oil pump, carries out work.
1. when the rotation of transmission shaft clockwise direction, when transmission shaft (9) drives internal rotor (7) rotation, internal rotor (7) drives external rotor (6) rotating Vortex, the first oil pocket (A) in the pump housing forms low pressure area, the pressure of the first oil pocket (A) is lower than barometric pressure, the rotor pump one-way valve (3) being connected with oil absorbing end in the first oil pocket (A) is opened, fuel sucking pipe one-way valve (2) is opened simultaneously, oil in oil sump enters the intake side of rotor pump, i.e. the first oil pocket (A), the second oil pocket (B) at rotor pump is contrary, in the second oil pocket (B), form zone of high pressure, the rotor pump one-way valve (3) being connected with oil absorbing end in the second oil pocket (B) is because pressure difference is closed, the rotor pump one-way valve (3) being connected with the 3rd oil pocket (C) in the second oil pocket (B) is opened under the high pressure of the second oil pocket (B), high pressure oil enters the 3rd oil pocket (C), the pressure of the 3rd oil pocket (C) is higher than the pressure of the first oil pocket (A), the rotor pump one-way valve (3) being connected with the 3rd oil pocket (C) in the first oil pocket (A) is closed because of the 3rd oil pocket (C) high pressure, the oil outlet (E) of high pressure oil on bonnet (5) discharged.In this process, because the 4th oil pocket (D) is connected with other oil duct in working machine, oil pump can be oil unnecessary in other oil duct the oil duct by fuel sucking pipe (1) absorb and come, so this oil circuit provides another suction passage for oil pump.In operation of oil pump process, can open or close according to actual needs the 4th oil pocket (D).
2. when transmission shaft counterclockwise rotates, when transmission shaft (9) drives internal rotor (7) rotation, internal rotor (7) drives external rotor (6) rotating Vortex, the second oil pocket (B) in the pump housing forms low pressure area, the pressure of the second oil pocket (B) is lower than barometric pressure, the rotor pump one-way valve (3) being connected with oil absorbing end in the second oil pocket (B) is opened, fuel sucking pipe one-way valve (2) is opened simultaneously, oil in oil sump enters the intake side of rotor pump, i.e. the second oil pocket (B), the first oil pocket (A) at rotor pump is contrary, in the first oil pocket (A), form zone of high pressure, the rotor pump one-way valve (3) being connected with oil absorbing end in the first oil pocket (A) is because pressure difference is closed, the rotor pump one-way valve (3) being connected with the 3rd oil pocket (C) in the first oil pocket (A) is opened under the high pressure of the first oil pocket (A), high pressure oil enters the 3rd oil pocket (C), the pressure of the 3rd oil pocket (C) is higher than the pressure of the second oil pocket (B), the rotor pump one-way valve (3) being connected with the 3rd oil pocket (C) in the second oil pocket (B) is closed because of the 3rd oil pocket (C) high pressure, the oil outlet (E) of high pressure oil on bonnet (5) discharged.In this process, because the 4th oil pocket (D) is connected with other oil duct in working machine, so oil pump can be oil unnecessary in other oil duct the oil duct by fuel sucking pipe (1) absorb and come, this oil circuit provides another suction passage for oil pump.In operation of oil pump process, can open or close according to actual needs the 4th oil pocket (D).
Claims (2)
1. a single current is to clockwise and anticlockwise cycloid rotor pump, it is characterized in that: 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) form, fuel sucking pipe (1) is positioned at oil pump bottom, by bolt, be connected with bonnet (5), a fuel sucking pipe one-way valve (2) is housed in fuel sucking pipe (1), transmission shaft (9) is connected with internal rotor (7) interference, and be bearing on oil pump case (8) and bonnet (5), internal rotor (7) and external rotor (6) are loaded in oil pump case (8), bonnet (5) is bolted with oil pump case (8), top board (4) is positioned at the top of oil pump, by bolt, be connected with bonnet (5), there are two the first oil pockets (A) that are parallel to each other and the second oil pocket (B) in two ends, the inner left and right of bonnet (5), the two ends of these two oil pockets have four for the valve opening of rotor pump one-way valve (3) is installed, the first oil pocket (A) that bonnet (5) is inner, four the rotor pump one-way valves (3) of the second oil pocket (B) by two ends respectively with the oil duct of fuel sucking pipe (1), the 3rd oil pocket (C) of top board (4) is connected, the 3rd oil pocket (C) is connected with the oil outlet (E) on bonnet (5), one end of the 4th oil pocket (D) on bonnet (5) is connected with the oil duct of fuel sucking pipe (1) by fuel sucking pipe one-way valve (2), the other end is connected with other oil circuit in working machine.
2. a kind of single current according to claim 1 is to 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) are all comprised 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 CN102400911A (en) | 2012-04-04 |
| CN102400911B true CN102400911B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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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 |
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| Publication number | Publication date |
|---|---|
| CN102400911A (en) | 2012-04-04 |
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