CN103511248A - One-flow-direction reversible cycloid rotor pump - Google Patents
One-flow-direction reversible cycloid rotor pump Download PDFInfo
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- CN103511248A CN103511248A CN201310497973.6A CN201310497973A CN103511248A CN 103511248 A CN103511248 A CN 103511248A CN 201310497973 A CN201310497973 A CN 201310497973A CN 103511248 A CN103511248 A CN 103511248A
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- pump
- rotor
- rotor pump
- flow
- cycloid
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to a one-flow-direction reversible cycloid rotor pump. The one-flow-direction reversible cycloid rotor pump comprises a hollow hydraulic pump casing; a rotary shaft is arranged in the middle of the casing; an oil suction pipe is arranged at the lower end of the casing; an oil suction pipe one-way valve is arranged in the oil suction pipe; the rotary shaft is connected with an inner rotor; an outer rotor is arranged on the inner rotor. The the one-flow-direction reversible cycloid rotor pump provided by the invention does not require an eccentric bushing which is used on a conventional cycloid rotor pump; the one-flow-direction reversible cycloid rotor pump achieves the function that the oil suction and discharge directions do not change through the one-way valve; the problem of volumetric efficiency dropping caused by wear of the eccentric bushing is solved; the safety and reliability of the the one-flow-direction reversible cycloid rotor pump are improved; the service life of the the one-flow-direction reversible cycloid rotor pump is prolonged.
Description
Technical field
The present invention relates to a kind of cycloid rotor pump.
Background technique
Cycloid rotor pump is a kind of special crescent gear pump, have simple in structure, compact dimensions, noise is little, running balance steady, allow to be applied in the advantage ，Yi mines such as high rotating speed and engineering machinery.Cycloid rotor pump divides single pump and double-flow pump, in engineering machinery, usually requires cycloid gear pump to make single current to meeting usage requirement.
Traditional single current to cycloid rotor pump as shown in Figure 1, is comprised of transmission shaft, pump case, locating stud, internal rotor, pump cover, external rotor, eccentric bushing etc.On the cylindrical of external rotor, an eccentric bushing of moving cooperation, has one 180 on eccentric bushing.Circular groove, the locating stud penetrating from pump case, just in time has half to insert in circular groove, and eccentric bushing cylindrical is concentric with internal rotor, inner circle is concentric with external rotor, inside and outside circle has certain throw of eccentric, and eccentric bushing cunning is contained in pump case, when internal rotor is rotated counterclockwise, drive external rotor in circular hole, to rotate in eccentric bushing, due to the drive of frictional force between external rotor and eccentric bushing, eccentric bushing also rotates counterclockwise, until quilt
Till locating stud blocks.At this moment, 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 1800, and inlet port and the oil drain out of flow groove do not change.This class pump is high to the technical requirements of eccentric bushing, and difficulty of processing is large, and because eccentric bushing frictionally drives, the in the situation that of the frequent change of transmission shaft sense of rotation, the wearing and tearing of each part are very fast, and the reliability of pump is reduced, and finally have influence on the overall performance of operation mechanism.
Summary of the invention
The present invention aims to provide a kind of simple compactness, good manufacturability, and the high single current of reliability is to clockwise and anticlockwise cycloid rotor pump.
Single current of the present invention, to clockwise and anticlockwise cycloid rotor pump, comprises the casing of hydraulic pump of hollow, is provided with rotatingshaft in the middle of housing, housing lower end is provided with fuel sucking pipe, in fuel sucking pipe, be provided with fuel sucking pipe one-way valve, connected an internal rotor on rotatingshaft, internal rotor is provided with an external rotor.
Preferably, 2 rotor pump one-way valves are also equipped with on fuel sucking pipe top.
More preferably, described fuel sucking pipe one-way valve is comprised of valve seat, valve plate, valve body, spring, valve gap and 20 shape circles.
Single current of the present invention has been cancelled the eccentric bushing of existing cycloid rotor pump to clockwise and anticlockwise cycloid rotor pump, the direction that realizes rotor pump oil suction and oil extraction with one-way valve does not change, solved the volumetric efficiency decline problem that the wearing and tearing because of eccentric bushing bring, the safety reliability that has improved rotor pump, has extended working life.
Accompanying drawing explanation
Fig. 1 is that traditional single current is to the sectional view of cycloid rotor pump.
Fig. 2 is that single current of the present invention is to the sectional view of cycloid rotor pump.
Fig. 3 is the postrotational schematic diagram of the F-F of Fig. 2.
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. casing of hydraulic pump 9. transmission shaft 11. transmission shaft 12. pump case 13. locating stud 14. internal rotor 15. pump cover 16. external rotor 17. eccentric bushings.
Embodiment
Embodiment one
As shown in the figure, single current of the present invention comprises the casing of hydraulic pump of hollow to clockwise and anticlockwise cycloid rotor pump, in the middle of housing, is provided with rotatingshaft, and housing lower end is provided with fuel sucking pipe, and 2 rotor pump one-way valves are also equipped with on fuel sucking pipe top.In fuel sucking pipe, be provided with fuel sucking pipe one-way valve, fuel sucking pipe one-way valve is comprised of valve seat, valve plate, valve body, spring, valve gap and 20 shape circles.On rotatingshaft, interference has connected an internal rotor, is supported on oil hydraulic pump, and bonnet and casing of hydraulic pump are bolted, and top board is contained in liquid
The top of press pump.
(1) when transmission shaft clockwise direction rotates, when transmission shaft 9 drives internal rotor 7 rotation, internal rotor drives external rotor 6 rotating Vortexes, formation low pressure area, A chamber in the pump housing, the pressure in A chamber is lower than barometric pressure, the rotor pump one-way valve opens being connected with oil absorbing end in A chamber, fuel sucking pipe one-way valve is also opened simultaneously, and the oil in oil sump enters the intake side (A chamber) of rotor pump.B chamber at rotor pump is contrary, in B chamber, form zone of high pressure, the rotor pump one-way valve being connected with oil absorbing end in B chamber is because pressure difference is closed, the one-way valve being connected with C chamber in B chamber is opened under the high pressure in B chamber, high pressure oil enters C chamber, the pressure in C chamber is higher than the pressure in A chamber, and the one-way valve being connected with C chamber in A chamber is closed because of C chamber high pressure, and discharge in the c chamber of high pressure oil on the top board again E chamber from bonnet.
(2) when transmission shaft counterclockwise rotates, transmission shaft 9 drives internal rotor 7 rotations, internal rotor drives external rotor 6 rotating Vortexes, formation low pressure area, B chamber in the pump housing, the pressure in B chamber is lower than barometric pressure, the rotor pump one-way valve opens being connected with oil absorbing end in B chamber, fuel sucking pipe one-way valve is also opened simultaneously, and the oil in oil sump enters the intake side (B chamber) of rotor pump.A chamber at rotor pump is contrary, in A chamber, form zone of high pressure, the rotor pump one-way valve being connected with oil absorbing end in A chamber is because pressure difference is closed, in A chamber, be connected with C chamber one-way valve under the high pressure in A chamber, open, high pressure oil enters people C chamber, the pressure in C chamber is higher than the pressure in B chamber, and the one-way valve being connected with C chamber in B chamber is closed because of C chamber high pressure, and discharge in the C chamber of high pressure oil on the top board again E chamber from bonnet.
Claims (3)
1. single current, to clockwise and anticlockwise cycloid rotor pump, is characterized in that comprising the casing of hydraulic pump of hollow, is provided with rotatingshaft in the middle of housing, housing lower end is provided with fuel sucking pipe, in fuel sucking pipe, be provided with fuel sucking pipe one-way valve, connected an internal rotor on rotatingshaft, internal rotor is provided with an external rotor.
2. single current as claimed in claim 1 is to clockwise and anticlockwise cycloid rotor pump, it is characterized in that fuel sucking pipe top is also equipped with 2 rotor pump one-way valves.
3. single current as claimed in claim 2, to clockwise and anticlockwise cycloid rotor pump, is characterized in that described fuel sucking pipe one-way valve is comprised of valve seat, valve plate, valve body, spring, valve gap and 20 shape circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497973.6A CN103511248A (en) | 2013-10-22 | 2013-10-22 | One-flow-direction reversible cycloid rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497973.6A CN103511248A (en) | 2013-10-22 | 2013-10-22 | One-flow-direction reversible cycloid rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511248A true CN103511248A (en) | 2014-01-15 |
Family
ID=49894520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310497973.6A Pending CN103511248A (en) | 2013-10-22 | 2013-10-22 | One-flow-direction reversible cycloid rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511248A (en) |
-
2013
- 2013-10-22 CN CN201310497973.6A patent/CN103511248A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |