CN109404276B - Double-acting vane pump - Google Patents
Double-acting vane pump Download PDFInfo
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- CN109404276B CN109404276B CN201811568997.5A CN201811568997A CN109404276B CN 109404276 B CN109404276 B CN 109404276B CN 201811568997 A CN201811568997 A CN 201811568997A CN 109404276 B CN109404276 B CN 109404276B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/10—Stators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a double-acting vane pump, wherein a first valve plate, a rotor and a second valve plate are sequentially sleeved on a shaft, a stator is sleeved on the rotor, a gap is reserved between the inner wall of the stator and the outer wall of the rotor, the first valve plate and the second valve plate are respectively abutted against the corresponding end faces of the stator, one end of the shaft close to the second valve plate is sleeved on a second shaft sleeve of a low-pressure end shell in a matched and embedded mode, one end of the shaft close to the first valve plate is matched and penetrates through a first shaft sleeve of a high-pressure end shell and is partially exposed, the second valve plate, the stator and the first valve plate are positioned and fixed through at least one positioning pin, the low-pressure end shell and the high-pressure end shell are correspondingly combined together, an inlet of a second switching oil passage is communicated with an outlet of a first oil switching passage, and two adjacent vanes, the rotor, the stator, the first valve plate and the second valve plate form a cavity. The hydraulic pump has a simple structure, and can output two hydraulic oils with different pressures.
Description
Technical Field
The invention relates to a double-acting vane pump.
Background
At present, in a transmission of a hybrid electric vehicle, a hydraulic system is required to execute operations such as gear shifting, wherein a certain requirement is imposed on a power source oil pump; and the other power source oil pump is used for cooling and lubricating a gear shaft and a motor in the box body, and the part is low pressure. The structure is complex, the occupied space of the gearbox is large, and the gearbox is limited by certain space when used on a hybrid electric vehicle. And design a section exports the vane pump of the hydraulic oil of two kinds of different pressures to make gearbox inner structure comparatively simplify, reduce the gearbox and occupy the volume, will have great research meaning.
Disclosure of Invention
The invention aims to provide a double-acting vane pump which is simple in structure and can output two kinds of hydraulic oil with different pressures.
The invention is realized by the following scheme:
a double-acting vane pump comprises a high-pressure end shell, a low-pressure end shell, a first thrust plate, a second thrust plate, a rotor and a stator, wherein the periphery of the outer side of the rotor is of a tooth groove structure, vanes are arranged in each tooth groove on the periphery of the outer side of the rotor and can move in a telescopic mode along the radial direction of the rotor, a mounting groove is formed in the inner end face of the high-pressure end shell, a first shaft sleeve is nested in the middle of the bottom of the mounting groove, a high-pressure oil discharge groove is formed in the periphery of the first shaft sleeve in the bottom of the mounting groove, a high-pressure oil suction groove is formed in the periphery of the mounting groove in the inner end face of the high-pressure end shell and communicated with the mounting groove, an oil suction port and a high-pressure oil discharge port are formed in the outer side face of the high-pressure end shell, a first oil switching channel is arranged in the high-pressure end shell, the oil suction port is respectively communicated with the high-pressure oil suction groove and the first oil switching channel, and the high-pressure oil discharge groove is communicated with the high-pressure oil outlet; a second shaft sleeve is nested in the middle of the inward end surface of the low-pressure end shell, a low-pressure oil discharge groove and a low-pressure oil suction groove are formed in the periphery of the second shaft sleeve on the inward end surface of the low-pressure end shell, a low-pressure oil outlet is formed in the outer side surface of the low-pressure end shell, a second oil switching channel is arranged in the low-pressure end shell, an inlet of the second oil switching channel is formed in the inward end surface of the low-pressure end shell, the second oil switching channel is communicated with the low-pressure oil suction groove, and the low-pressure oil outlet is communicated with the low-pressure oil discharge groove; the inner wall of the stator is of a cambered surface transition curve structure with an oval-like cross section, the transition curve structure is formed by two sections of symmetrical curves with larger radian and longer length and two sections of symmetrical curves with smaller radian and shorter length, one side of the first flow distribution plate is provided with an inward concave high-pressure oil inlet through groove, the first flow distribution plate is provided with a high-pressure oil outlet hole, one side of the second flow distribution plate is provided with an inward concave low-pressure oil inlet through groove, the second flow distribution plate is provided with a low-pressure oil outlet hole, the first flow distribution plate, the rotor and the second flow distribution plate are sequentially sleeved on a shaft, the stator is sleeved on the rotor, a gap is reserved between the inner wall of the stator and the outer wall of the rotor, the first flow distribution plate and the second flow distribution plate respectively abut against corresponding end surfaces of the stator, one end of the shaft close to the second flow distribution plate is matched and nested on a second shaft sleeve of the low-, one end of the shaft close to the first valve plate is matched with and penetrates through a first shaft sleeve of the high-pressure end shell and is partially exposed, the shaft can rotate and can drive the rotor to rotate, the second valve plate, the stator and the first valve plate are all arranged in an installation groove of the high-pressure end shell, the second valve plate, the stator and the first valve plate are positioned and fixed through at least one positioning pin, the low-pressure end shell and the high-pressure end shell are correspondingly combined together, an inlet of a second oil liquid transfer passage is communicated with an outlet of the first oil liquid transfer passage, two adjacent blades, the rotor, the stator, the first valve plate and the second valve plate form a cavity together, a low-pressure oil suction groove of the low-pressure end shell, a low-pressure oil inlet through groove of the second valve plate and a cavity corresponding to one side with a larger curve radian of the inner wall of the stator are sequentially communicated, and a high-pressure oil suction groove of the high-pressure end shell and a high-pressure oil inlet through groove, The cavity that the great opposite side of stator inner wall curve radian is corresponding is linked together in proper order, the high pressure oil extraction groove of high pressure end casing, the high pressure oil outlet of first valve plate, the cavity that the less opposite side of stator inner wall curve radian is corresponding are linked together in proper order, the low pressure oil extraction groove of low pressure end casing, the low pressure oil outlet of second valve plate, the less corresponding cavity of one side of stator inner wall curve radian are linked together in proper order. In actual manufacturing, in order to reduce oil absorption resistance and increase oil absorption throughput, through grooves can be symmetrically formed in the positions, corresponding to the high-pressure oil inlet through grooves, on the other side of the first flow distribution plate and the positions, corresponding to the low-pressure oil inlet through grooves, on the other side of the second flow distribution plate, through holes can be formed in the positions, corresponding to the high-pressure oil outlet holes, of the first flow distribution plate, and the positions, corresponding to the low-pressure oil outlet holes, of the second flow distribution plate, and through holes can be formed in the positions, corresponding to the low.
Furthermore, a groove is formed in the position, corresponding to the low-pressure oil inlet through groove of the second valve plate, of the inner wall of the mounting groove of the high-pressure end shell, the top of the groove is of an opening structure, and the groove and the high-pressure oil suction groove are oppositely distributed.
Furthermore, a stop block is arranged at the top of one end, close to the high-pressure end shell, of the high-pressure oil inlet through groove of the first valve plate.
Furthermore, the oil suction port and the high-pressure oil outlet of the high-pressure end shell are arranged on the same side face, the side face is a joint face with the oil supply device and the oil component to be input, and the side face where the low-pressure oil outlet of the low-pressure end shell is located is a joint face with the oil component to be input.
Furthermore, the bottom of the mounting groove of the high-pressure end shell is provided with at least one first positioning pin hole, the inward end surface of the low-pressure end shell is provided with at least one second positioning pin hole, the outer periphery of the first valve plate is provided with at least one first positioning pin clamping groove, the outer periphery of the second valve plate is provided with at least one second positioning pin clamping groove, the outer periphery of the stator is provided with at least one third positioning pin clamping groove, one end of the positioning pin is fixed in the second positioning pin hole of the low-pressure end shell, the other end of the positioning pin is fixed in the first positioning pin hole of the high-pressure end shell, and the middle part of the positioning pin is sequentially clamped in the second positioning pin clamping groove of the second valve plate, the third positioning pin clamping groove of the stator and the first positioning pin clamping groove of the first valve plate.
Furthermore, the stator and the high-pressure oil inlet through groove of the first port plate and the low-pressure oil inlet through groove of the second port plate are respectively provided with a notch. The arrangement of the slot can make the oil flow into the chamber more conveniently.
Furthermore, the cavity is the largest when facing the high-pressure oil inlet through groove of the first port plate or the low-pressure oil inlet through groove of the second port plate, and the cavity is the smallest when facing the high-pressure oil outlet hole of the first port plate or the low-pressure oil outlet hole of the second port plate.
The double-acting vane pump is simple in structure, is provided with the low-pressure oil outlet and the high-pressure oil outlet, and outputs two kinds of hydraulic oil with different pressures to an oil part to be input by driving the vanes to rotate through the rotor so as to meet the requirement of the oil part to be input.
Drawings
Fig. 1 is a schematic view of the overall structure of a double-acting vane pump in embodiment 1;
fig. 2 is an exploded schematic view of a double-acting vane pump in embodiment 1;
FIG. 3 is a schematic structural view of a high-pressure side casing in embodiment 1;
fig. 4 is a schematic structural view of a low-pressure end housing in embodiment 1;
FIG. 5 is a schematic structural view of a first port plate in embodiment 1;
fig. 6 is a schematic structural view of a second port plate in embodiment 1.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited to the description of the examples.
Example 1
A double-acting vane pump is shown in figures 1 and 2 and comprises a high-pressure end shell 1, a low-pressure end shell 2, a first port plate 3, a second port plate 4, a rotor 5 and a stator 6, wherein the periphery of the outer side of the rotor 5 is of a tooth groove structure, a vane 7 is arranged in each tooth groove on the periphery of the outer side of the rotor 5, and the vane 7 can radially extend and retract along the rotor 5;
as shown in fig. 3, a mounting groove 101 is formed on the inward end surface of the high pressure end housing 1, a first shaft sleeve 102 is nested in the middle position of the bottom of the mounting groove 101, a high pressure oil discharge groove 103 is formed in the position of the bottom of the mounting groove 101, which is located at the periphery of the first shaft sleeve 102, a high pressure oil suction groove 104 is formed in the position of the inward end surface of the high pressure end housing 1, which is located at the periphery of the mounting groove 101, the high pressure oil suction groove 104 is communicated with the mounting groove 101, an oil suction port 105 and a high pressure oil discharge port 106 are formed in the outer side surface of the high pressure end housing 1, the oil suction port 105 and the high pressure oil discharge port 106 of the high pressure end housing 1 are on the same side surface, which is a joint surface with an oil supply device and an oil component to be input, a first oil transfer passage 107 is formed in the high pressure end housing 1, an outlet, the high-pressure oil discharge groove 103 is communicated with the high-pressure oil outlet 106, a groove 108 is formed in the position, corresponding to the low-pressure oil inlet through groove 401 of the second valve plate 4, of the inner wall of the mounting groove 101 of the high-pressure end shell 1, the top of the groove 108 is of an open structure, the groove 108 and the high-pressure oil suction groove 104 are distributed in a facing mode, and two first positioning pin holes 109 are formed in the bottom of the mounting groove 101 of the high-pressure end shell 1;
as shown in fig. 4, a second shaft sleeve 201 is nested in the middle of the inward end surface of the low-pressure end housing 2, a low-pressure oil discharge groove 202 and a low-pressure oil suction groove 203 are formed in the inward end surface of the low-pressure end housing 2, a low-pressure oil outlet 204 is formed in the outer side surface of the low-pressure end housing 2, the side surface of the low-pressure oil outlet 204 of the low-pressure end housing 2 is a joint surface with an oil component to be input, a second oil switching channel 205 is formed in the low-pressure end housing 2, an inlet of the second oil switching channel 205 is formed in the inward end surface of the low-pressure end housing 2, the second oil switching channel 205 is communicated with the low-pressure oil suction groove 203, the low-pressure oil outlet 204 is communicated with the low-pressure oil discharge groove 202;
as shown in fig. 2, the inner wall of the stator 6 is a cambered surface transition curve structure with an elliptic cross section, the transition curve structure is formed by two symmetrical curves with a larger and longer radian and two symmetrical curves with a smaller and shorter radian, two third positioning pin clamping grooves 601 are arranged on the periphery of the outer side of the stator 6, and the end surfaces of the stator 6 corresponding to the high-pressure oil inlet through groove 301 of the first port plate 3 and the low-pressure oil inlet through groove 401 of the second port plate 4 are respectively provided with a notch 602; as shown in fig. 5, an inwardly concave high-pressure oil inlet through groove 301 is formed in one side of the first port plate 3, a stopper 302 is arranged at the top of one end, close to the high-pressure end housing 1, of the high-pressure oil inlet through groove 301 of the first port plate 3, a high-pressure oil outlet hole 303 is formed in the first port plate 3, and two first positioning pin clamping grooves 304 are formed in the periphery of the outer side of the first port plate 3; as shown in fig. 6, one side of the second port plate 4 is provided with an inward concave low-pressure oil inlet through groove 401, the second port plate 4 is provided with a low-pressure oil outlet hole 402, and the outer periphery of the second port plate 4 is provided with two second positioning pin clamping grooves 403;
as shown in fig. 1 and 2, the first port plate 3, the rotor 5, and the second port plate 4 are sequentially sleeved on the shaft 8, the stator 6 is sleeved on the rotor 5, a gap is left between an inner wall of the stator 6 and an outer wall of the rotor 5, the first port plate 3 and the second port plate 4 are respectively abutted against corresponding end surfaces of the stator 6, one end of the shaft 8 close to the second port plate 4 is nested on the second shaft sleeve 201 of the low-pressure casing 2, one end of the shaft 8 close to the first port plate 3 is nested on the first shaft sleeve 102 of the high-pressure casing 1, and is partially exposed, the shaft 8 is rotatable, the shaft 8 can drive the rotor 5 to rotate, the second port plate 4, the stator 6, and the first port plate 3 are all disposed in the mounting groove 101 of the high-pressure casing 1, the second port plate 4, the stator 6, and the first port plate 3 are positioned and fixed together by two positioning pins 9, one end of the positioning pin 9 is fixed in the second positioning pin 206 of the low-pressure casing 2, the other end of the positioning pin 9 is fixed in the first positioning pin hole 109 of the high-pressure end housing 1, the middle part of the positioning pin 9 is sequentially clamped in the second positioning pin clamping groove 403 of the second port plate 4, the third positioning pin clamping groove 601 of the stator 6 and the first positioning pin clamping groove 304 of the first port plate 3, the low-pressure end housing 2 and the high-pressure end housing 1 are correspondingly combined together, the inlet of the second oil switching channel 205 is communicated with the outlet of the first oil switching channel 107, two adjacent blades 7, the rotor 5, the stator 6, the first port plate 3 and the second port plate 4 form a cavity together, the low-pressure oil suction groove 203 of the low-pressure end housing 2, the low-pressure oil inlet through groove 401 of the second port plate 4 and the cavity corresponding to the side with the larger curve radian of the inner wall of the stator 6 are sequentially communicated, the high-pressure oil suction groove 104 of the high-pressure end housing 1 and the high-pressure oil inlet through groove 301 of the, The chambers corresponding to the other side with larger curvature of the inner wall of the stator 6 are communicated in sequence, the high-pressure oil discharge groove 103 of the high-pressure end shell 1, the high-pressure oil outlet hole 303 of the first port plate 3 and the chambers corresponding to the other side with smaller curvature of the inner wall of the stator 6 are communicated in sequence, and the low-pressure oil discharge groove 202 of the low-pressure end shell 2, the low-pressure oil outlet hole 402 of the second port plate 4 and the chambers corresponding to the side with smaller curvature of the inner wall of the stator 6 are communicated in sequence; the cavity is the largest when facing the high-pressure oil inlet through groove 301 of the first port plate 3 or the low-pressure oil inlet through groove 401 of the second port plate 4, and the cavity is the smallest when facing the high-pressure oil outlet hole 303 of the first port plate 3 or the low-pressure oil outlet hole 402 of the second port plate 4.
When the high-pressure oil pump is used, the shaft is driven to rotate by the motor, the rotor is driven to rotate by the shaft, the centrifugal force generated by the rotor enables the blades to extend out and finally abut against the inner wall of the stator, the inner wall of the stator is a special transition curve, the end surfaces of the blades do relative friction motion along with the curve of the inner wall of the stator, the blades extend and retract along with the curve of the inner wall of the stator, the cavity of the cavity is the largest when facing the high-pressure oil inlet through groove of the first port plate or the low-pressure oil inlet through groove of the second port plate in the rotating process, the cavity is gradually reduced in the rotating process, the cavity is the smallest when facing the high-pressure oil outlet hole of the first port plate or the low-pressure oil outlet hole of the second port plate, the vane pump can suck oil and discharge oil twice in one rotation circle, the volume change of the cavity can enable the cavity to generate negative pressure when facing the high-pressure oil inlet through groove of the first port plate or the low-pressure oil inlet through groove of the second port plate And the oil enters the cavity, and then flows out of the cavity from the high-pressure oil outlet hole of the first valve plate or the low-pressure oil outlet hole of the second valve plate to the oil part to be input through the high-pressure oil outlet of the high-pressure end shell or the low-pressure oil outlet of the low-pressure end shell.
Specifically, hydraulic oil enters from an oil suction port of a high-pressure end shell in an oil supply device, one part of the hydraulic oil flows into a high-pressure oil suction groove, the other part of the hydraulic oil flows into a first oil transfer passage, the hydraulic oil flowing into the high-pressure oil suction groove flows into a cavity corresponding to one side with a larger curvature of the inner wall curve of the stator through a high-pressure oil inlet through groove of a first flow distribution plate, a rotor rotates, the cavity is reduced from large to small under the action of the curve of the inner wall of the stator, the hydraulic oil in the cavity is discharged into a high-pressure oil discharge groove of the high-pressure end shell through a high-pressure oil outlet of the first flow distribution plate, and finally flows into an oil component to be input; correspondingly, hydraulic oil flowing into the first oil switching channel flows into the low-pressure oil suction groove through the second oil switching channel of the low-pressure end shell, then flows into the cavity corresponding to the other side with the larger curvature radian of the inner wall of the stator from the low-pressure oil inlet through groove of the second flow distribution plate, the rotor rotates, the cavity is reduced from large to small under the action of the curve of the inner wall of the stator, the hydraulic oil in the cavity is discharged into the low-pressure oil discharge groove of the low-pressure end shell through the low-pressure oil outlet of the second flow distribution plate, and finally flows into an oil component to be input through the low-pressure oil outlet, so that the generation of the low-pressure oil is finished.
Claims (6)
1. A double acting vane pump characterized by: the high-pressure oil-gas separator comprises a high-pressure end shell, a low-pressure end shell, a first valve plate, a second valve plate, a rotor and a stator, wherein the periphery of the outer side of the rotor is of a tooth groove structure, blades are arranged in each tooth groove on the periphery of the outer side of the rotor and can move in a telescopic mode along the radial direction of the rotor, a mounting groove is formed in the inner end face of the high-pressure end shell, a first shaft sleeve is nested in the middle of the bottom of the mounting groove, a high-pressure oil discharge groove is formed in the periphery of the first shaft sleeve in the bottom of the mounting groove, a high-pressure oil suction groove is formed in the periphery of the mounting groove in the inner end face of the high-pressure end shell and communicated with the mounting groove, an oil suction port and a high-pressure oil discharge port are formed in the outer side face of the high-pressure end shell, a first oil switching channel is arranged, the oil suction port is respectively communicated with the high-pressure oil suction groove and the first oil switching channel, and the high-pressure oil discharge groove is communicated with the high-pressure oil outlet; a second shaft sleeve is nested in the middle of the inward end surface of the low-pressure end shell, a low-pressure oil discharge groove and a low-pressure oil suction groove are formed in the periphery of the second shaft sleeve on the inward end surface of the low-pressure end shell, a low-pressure oil outlet is formed in the outer side surface of the low-pressure end shell, a second oil switching channel is arranged in the low-pressure end shell, an inlet of the second oil switching channel is formed in the inward end surface of the low-pressure end shell, the second oil switching channel is communicated with the low-pressure oil suction groove, and the low-pressure oil outlet is communicated with the low-pressure oil discharge groove; the inner wall of the stator is of a cambered surface transition curve structure with an oval-like cross section, the transition curve structure is formed by two sections of symmetrical curves with larger radian and longer length and two sections of symmetrical curves with smaller radian and shorter length, one side of the first flow distribution plate is provided with an inward concave high-pressure oil inlet through groove, the first flow distribution plate is provided with a high-pressure oil outlet hole, one side of the second flow distribution plate is provided with an inward concave low-pressure oil inlet through groove, the second flow distribution plate is provided with a low-pressure oil outlet hole, the first flow distribution plate, the rotor and the second flow distribution plate are sequentially sleeved on a shaft, the stator is sleeved on the rotor, a gap is reserved between the inner wall of the stator and the outer wall of the rotor, the first flow distribution plate and the second flow distribution plate respectively abut against corresponding end surfaces of the stator, one end of the shaft close to the second flow distribution plate is matched and nested on a second shaft sleeve of the low-, one end of the shaft close to the first valve plate is matched with and penetrates through a first shaft sleeve of the high-pressure end shell and is partially exposed, the shaft can rotate and can drive the rotor to rotate, the second valve plate, the stator and the first valve plate are all arranged in an installation groove of the high-pressure end shell, the second valve plate, the stator and the first valve plate are positioned and fixed through at least one positioning pin, the low-pressure end shell and the high-pressure end shell are correspondingly combined together, an inlet of a second oil liquid transfer passage is communicated with an outlet of the first oil liquid transfer passage, two adjacent blades, the rotor, the stator, the first valve plate and the second valve plate form a cavity together, a low-pressure oil suction groove of the low-pressure end shell, a low-pressure oil inlet through groove of the second valve plate and a cavity corresponding to one side with a larger curve radian of the inner wall of the stator are sequentially communicated, and a high-pressure oil suction groove of the high-pressure end shell and a high-pressure oil inlet through groove, The corresponding chambers on the other side with larger curvature of the inner wall of the stator are sequentially communicated, the high-pressure oil discharge groove of the high-pressure end shell, the high-pressure oil outlet hole of the first valve plate and the corresponding chambers on the other side with smaller curvature of the inner wall of the stator are sequentially communicated, and the low-pressure oil discharge groove of the low-pressure end shell, the low-pressure oil outlet hole of the second valve plate and the corresponding chambers on the one side with smaller curvature of the inner wall of the stator are sequentially communicated; the cavity is the largest when facing the high-pressure oil inlet through groove of the first port plate or the low-pressure oil inlet through groove of the second port plate, and the cavity is the smallest when facing the high-pressure oil outlet hole of the first port plate or the low-pressure oil outlet hole of the second port plate.
2. A double acting vane pump as defined in claim 1 wherein: the inner wall of the mounting groove of the high-pressure end shell and the position, corresponding to the low-pressure oil inlet through groove of the second valve plate, are provided with grooves, the tops of the grooves are of open structures, and the grooves and the high-pressure oil suction grooves are oppositely distributed.
3. A double acting vane pump as defined in claim 2 wherein: and a stop block is arranged at the top of one end, close to the high-pressure end shell, of the high-pressure oil inlet through groove of the first valve plate.
4. A double acting vane pump as defined in claim 1 wherein: the oil suction port and the high-pressure oil outlet of the high-pressure end shell are arranged on the same side face, the side face is a joint face with an oil liquid supply device and an oil liquid part to be input, and the side face where the low-pressure oil outlet of the low-pressure end shell is located is a joint face with the oil liquid part to be input.
5. A double acting vane pump as defined in claim 4 wherein: the stator is characterized in that at least one first positioning pin hole is formed in the bottom of the mounting groove of the high-pressure end shell, at least one second positioning pin hole is formed in the inward end face of the low-pressure end shell, at least one first positioning pin clamping groove is formed in the periphery of the outer side of the first valve plate, at least one second positioning pin clamping groove is formed in the periphery of the outer side of the second valve plate, at least one third positioning pin clamping groove is formed in the periphery of the outer side of the stator, one end of a positioning pin is fixed in the second positioning pin hole of the low-pressure end shell, the other end of the positioning pin is fixed in the first positioning pin hole of the high-pressure end shell, and the middle of the positioning pin is sequentially clamped in the second positioning pin clamping groove of the second valve plate, the third positioning pin clamping groove of the stator and the first positioning.
6. A double acting vane pump as claimed in any one of claims 1 to 5 wherein: and the stator is respectively provided with a notch on the end surface corresponding to the high-pressure oil inlet through groove of the first port plate and the low-pressure oil inlet through groove of the second port plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568997.5A CN109404276B (en) | 2018-12-21 | 2018-12-21 | Double-acting vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568997.5A CN109404276B (en) | 2018-12-21 | 2018-12-21 | Double-acting vane pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404276A CN109404276A (en) | 2019-03-01 |
| CN109404276B true CN109404276B (en) | 2020-03-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811568997.5A Active CN109404276B (en) | 2018-12-21 | 2018-12-21 | Double-acting vane pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110131162B (en) * | 2019-06-29 | 2024-04-09 | 台州弘一液压伺服科技有限公司 | Energy-saving vane pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281995A (en) * | 1990-03-29 | 1991-12-12 | Aisin Seiki Co Ltd | Vane pump |
| CN105317673A (en) * | 2014-06-11 | 2016-02-10 | 现代自动车株式会社 | Oil pump for automatic transmission |
| CN106989012A (en) * | 2015-12-17 | 2017-07-28 | 株式会社昭和 | Vane pump apparatus |
-
2018
- 2018-12-21 CN CN201811568997.5A patent/CN109404276B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281995A (en) * | 1990-03-29 | 1991-12-12 | Aisin Seiki Co Ltd | Vane pump |
| CN105317673A (en) * | 2014-06-11 | 2016-02-10 | 现代自动车株式会社 | Oil pump for automatic transmission |
| CN106989012A (en) * | 2015-12-17 | 2017-07-28 | 株式会社昭和 | Vane pump apparatus |
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| CN109404276A (en) | 2019-03-01 |
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Effective date of registration: 20220830 Address after: No.16 Gongxin Avenue, industrial park, Yifeng County, Yichun City, Jiangxi Province Patentee after: Jiangxi Dingsheng New Material Technology Co.,Ltd. Address before: 528000 601-604 room, block A, 1 floor, 131 Ji Hua Xi Road, Chancheng District, Foshan, Guangdong. Patentee before: CORUN HYBRID POWER TECHNOLOGY Co.,Ltd. |
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