WO2021051461A1 - 一种无配流平面柱片泵 - Google Patents

一种无配流平面柱片泵 Download PDF

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Publication number
WO2021051461A1
WO2021051461A1 PCT/CN2019/110924 CN2019110924W WO2021051461A1 WO 2021051461 A1 WO2021051461 A1 WO 2021051461A1 CN 2019110924 W CN2019110924 W CN 2019110924W WO 2021051461 A1 WO2021051461 A1 WO 2021051461A1
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WO
WIPO (PCT)
Prior art keywords
stator
pump body
pump
hole
suction port
Prior art date
Application number
PCT/CN2019/110924
Other languages
English (en)
French (fr)
Inventor
王新华
程一启
陈迎春
柴辉
帅义
Original Assignee
北京工业大学
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Filing date
Publication date
Application filed by 北京工业大学 filed Critical 北京工业大学
Publication of WO2021051461A1 publication Critical patent/WO2021051461A1/zh

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Classifications

    • 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
    • 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
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses
    • 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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/113—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the inner member carrying rollers intermeshing with the outer member
    • 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
    • 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
    • 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
    • F04C2240/60—Shafts

Definitions

  • the invention relates to a non-distribution plane column pump, which belongs to the technical field of hydraulic mechanical components.
  • No need of flow distribution suitable for high-pressure working environment, compact structure, small size, safe and reliable, easy to use, stable operation, uniform flow, long life, simple production process, greatly reducing processing costs, and has a broad market prospect. It can be widely used in industries such as mining, metallurgy, power sector, national defense construction, agricultural irrigation, petrochemical industry, and shipbuilding industry.
  • hydraulic technology has been widely used in construction machinery, pressure machinery and aviation industry.
  • the application of hydraulic machinery equipment components is more and more extensive, and the performance requirements of pumps are getting higher and higher.
  • hydraulic pumps According to several simple structure types of hydraulic pumps, hydraulic pumps have become increasingly diverse in structure.
  • the high-pressure non-distributed small rectangular column pump is currently a domestic pump with a novel structure, no distribution, and small size.
  • Gear pumps are small in size and simple in structure. They do not require strict cleanliness and are cheap.
  • the vane pump has uniform flow, stable operation and low noise, but The structure is more complex, the plunger pump has high volumetric efficiency, small leakage, and can work under high pressure.
  • the non-distribution plane column pump is suitable for high-pressure working environment, compact structure, small size, safe and reliable, easy to use, stable operation, uniform flow, long life, simple production process.
  • the technical problem to be solved by the present invention is: a non-distribution hydraulic flat cylinder pump, high-pressure non-distribution small rectangular cylinder pump suitable for high-pressure working environment, high-pressure non-distributed rectangular cylinder pump structure is simple, because of this new type of rectangular cylinder The structure of the pump design is symmetrical, so it effectively reduces the noise and leakage caused by unbalanced forces.
  • the high-pressure non-distributing rectangular column pump has uniform flow, long life and simple manufacturing process.
  • a non-distribution plane cylinder pump comprising: a pump body 1, a stator II 3, a rectangular cylinder 4, a drive plate 5, a pump cover 10, a transmission shaft 12 and a stator I 16.
  • the transmission shaft 12 is equipped with a stator II3, a driving disc 5, and a stator I16.
  • the stator II3 and the transmission shaft 12 are connected through a bearing II2, and the stator I16 and the transmission shaft 12 are connected through a bearing I15; the driving disc 5 and the transmission shaft 12 are connected through a transmission
  • the shaft-driving disk fixing pin 6 is connected, one side of the driving disk 5 is tangent to the oil sealing surface STPO of the stator I16, and the other side of the driving disk 5 is tangent to the oil sealing surface HGKL of the stator II3.
  • the drive shaft 12, the drive disc 5, the stator II3, the bearing II2, the stator I16 and the bearing I15 are all installed inside the pump body 1, a rectangular column piece 4 is installed between the stator I16 and the stator II3, and the stator I suction port of the stator I16 16-8 is connected with the pump body-stator I suction port 1-15 of the pump body 1, and the stator II suction port 3-7 of the stator II 3 is connected with the pump body-stator II suction port 1-16 of the pump body 1,
  • the stator I drain port 16-9 of the stator I 16 is connected with the pump body-stator I drain port 1-17 of the pump body 1, and the stator II drain port 3-8 of the stator II 3 is connected with the pump body-stator on the pump body 1.
  • the II discharge ports 1-18 are connected, and the pump body-lower stator positioning hole 1-7 at the bottom of the pump body 1 and the stator II-pump body positioning hole 3-1 at the bottom of the stator II 3 are connected by the pump body-stator II positioning pin 17.
  • the sleeve 14 is installed inside the pump cover 10. The sleeve front end 14-1 of the sleeve 14 is in close contact with the inner bearing I15 of the stator I16, and the sleeve rear end 14-2 of the sleeve 14 is in close contact with the oil seal 13 in the pump cover 10.
  • the pump cover 10 is provided with a pump cover-stator I positioning hole 10-4, a pump cover-stator I positioning hole 10-4 and a stator I-pump cover positioning hole 16-1 of the stator I16 through the pump cover-stator I positioning pin 8Connect.
  • the pump cover 10 is connected with the pump body 1 by screws 7, and an O-ring 9 and an oil seal 13 are installed inside the pump cover 10.
  • the transmission shaft 12 is provided with a keyway 12-1, a transmission shaft-drive disk positioning hole 12-2, and a transmission shaft pressure equalizing groove 12-3.
  • the keyway 12-1 is provided in the front part of the transmission shaft through an elastic diaphragm coupling Connected with the motor output shaft, the motor output shaft drives the drive shaft 13 of the column pump to rotate, the drive shaft 13 drives the drive disc 5 to rotate, and drives two rectangular column plates 4 to rotate on the surface of the stator I 16 and the stator II 3.
  • the drive shaft- The drive disc positioning holes 12-2 are symmetrically placed on both sides of the drive shaft 12, and are connected to the drive disc-drive shaft positioning holes 5-1 on the drive disc 5 through the drive disc-drive shaft fixing pin 6 to ensure the drive disc 5
  • the transmission shaft 12 is provided with transmission shaft pressure equalizing grooves 12-3, and the transmission shaft pressure equalizing grooves 12-3 are evenly opened on both sides of the transmission shaft-driving disc positioning hole 12-2.
  • the pump cover 10 is provided with an O-ring mounting groove 10-1, an oil seal mounting hole 10-2, a screw mounting hole 10-3, a pump cover-stator I positioning hole 10-4, and a pump cover-drive shaft mounting hole 10-5, the O-ring 9 is installed in the O-ring installation groove 10-1, the oil seal 13 is installed in the oil-seal installation hole 10-2, and the pump cover 10 is connected with the threaded holes 1-8 of the pump body 1 by screws 7.
  • Pump cover 10 is provided with pump cover-stator I positioning hole 10-4, pump cover-stator I positioning hole 10-4 is connected with stator I positioning hole 16-1 through pump cover-stator I positioning pin 8 and pump cover-drive shaft
  • the drive shaft 10 is installed inside the mounting hole 10-5.
  • the pump body 1 is provided with a pump body suction flow passage a1-1, a pump body suction flow passage b1-2, a pump body discharge flow passage a1-3, a pump body discharge flow passage b1-4, and a pump body suction flow passage b1-2.
  • the end of the body discharge port through hole 1-12 is provided with the pump body discharge port through hole threaded hole 1-14, which is used to install screws to seal the pump body discharge port through hole 1-12; pump body suction channel a1 -1
  • pump body-stator I suction ports 1-15 at the tail pump body-stator I suction ports 1-15 are connected with stator I suction channel 16-8 of stator I 16, and pump body suction channel b1 -2
  • There are pump body-stator II suction ports 1-16 at the tail pump body-stator II suction ports 1-16 are connected with stator I suction channel 3-7 of stator II3, and pump body discharge channel a1 -3
  • the tail is equipped with pump body-stator I drain port 1-17, pump body-stator I drain port 1-17 is connected with stator I drain channel 16-9 of stator I 16, and pump body drain channel b1 -4
  • pump body-stator II discharge ports 1-18 at the tail and pump body-stator II discharge ports 1-18 are connected
  • drive discs 5 There are two drive discs 5, namely drive disc I5-2 and drive disc II 5-3, in which there are two drive disc-drive shaft positioning holes 5-1, drive disc-drive shaft positioning holes 5-1 and The drive shaft-drive disc 12-2 on the drive shaft 12 is connected by a drive disc-drive shaft fixing pin 6.
  • stator II3 is provided with stator II-pump body positioning hole 3-1, stator II liquid inlet flow channel 3-2, stator II liquid discharge flow channel 3-3, stator II liquid inlet and unloading groove 3-4, and stator II Drainage and unloading groove 3-5, bearing mounting hole 3-6, stator II liquid suction port 3-7, stator liquid discharge port 3-8, stator I-drive shaft mounting hole 3-9, stator II liquid suction flow
  • the liquid outlet 3-10, the liquid suction port 3-11 of the stator II discharge channel, the stator II 3 is placed inside the pump body 1, the stator II-the positioning hole of the pump body 3-1 and the pump body-the stator II positioning hole 1- 7 is connected by the pump body-stator II positioning pin 17, the stator II liquid inlet unloading groove 3-4 is placed on the stator II 3 pressure oil surface IEHL, and it is connected with the stator II liquid inlet and outlet 3-10, the stator The II discharge and unloading groove 3-5 is placed on the suction surface JFGK
  • the sleeve 14 is installed inside the pump body 1, and the sleeve front end 14-1 of the sleeve 14 is in close contact with the outer ring of the bearing 15 installed inside the stator I bearing mounting hole 16-4 in the stator I 16, and is used to support the bearing 15.
  • the sleeve rear end 14-2 of the sleeve 14 is connected with the oil seal 13 for supporting the oil seal 13.
  • stator I16 is provided with a stator I-pump cover positioning hole 16-1, a stator I liquid suction channel 16-2, a stator I liquid discharge channel 16-3, a bearing mounting hole 16-4, and a stator I-drive shaft Mounting hole 16-5, stator II suction port unloading groove 16-6, stator I liquid discharge port unloading groove 16-7, stator I liquid suction port 16-8, stator I liquid discharge port 16-9, stator I Liquid suction channel outlet 16-10, stator I discharge channel liquid suction inlet 16-11, stator I 16 is inside the pump body 1, close to the inner surface of the pump body 1, stator I-pump cover positioning hole 16- 1 Connect the pump cover-stator I positioning pin 8 with the pump cover-stator I positioning hole 10-4, the stator I suction port unloading slot 16-6 is placed on the stator I 16 oil suction surface SORV, and is connected to the stator I suction flow channel The liquid outlet 16-10 is connected, and the stator I liquid discharge port un
  • rectangular column pieces 4 which are respectively installed between the drive disk I5-2 and the drive disk II 5-3, and the rectangular column pieces 4 are attached to each other, and the top of the elliptical surface AA'BB' of the rectangular column piece 4 XZYW and X'Z'Y'W' at the top of the ellipse CC'DD' are in close contact with the curved surface of the stator I16 and the stator II3 respectively, no interference, no leakage, and radial movement of the column can be realized; rectangular column 4 The arc surface WW'XX' is in close contact with the outer surface of the drive shaft 12, and the rectangular column piece 4 is in close contact with the arc surface YY'ZZ' and the inner surface of the pump body 1.
  • the curved surfaces of the stator I16 and the stator II3 are composed of four parts. There are two spiral transition surfaces and two arc surfaces.
  • the two spiral transition surfaces of stator I16 are the oil suction surface SORV and the oil pressure surface TPQU.
  • the two arc surfaces of the stator I16 constitute the oil sealing surface RQUV and the oil sealing surface.
  • stator II3 the two spiral transition surfaces of stator II3 are oil suction surface JFGK and oil pressure surface IEHL, two arc surfaces of stator I16 constitute oil sealing surface IJFE and oil sealing surface HGKL respectively; stator I16 and stator II3 and two columns Sealed cavities M, N are formed between the curved surfaces of the sheets, and the sealed cavities M, N are filled with liquid, which has the function of sealing and lubricating.
  • the working process of the present invention is: the transmission shaft 13 is connected with the motor output shaft through an elastic diaphragm coupling, the motor output shaft drives the transmission shaft 13 of the rectangular column pump to rotate, and the transmission shaft 13 drives the drive disc 5 to rotate, driving two rectangular The column piece 4 rotates on the surface of the stator I16 and the stator II3.
  • Stator I16 liquid absorption process When two of the rectangular column pieces 4 are closely attached to the drive plate 5 and the sealed space formed by the oil sealing surface RQUV of the stator I16, when the transmission shaft 12 drives the column piece 4 to rotate, the column piece 4 passes through the stator When the I16 oil suction surface SORV rotates to the oil sealing surface STPO, when the enclosed space gradually becomes larger, the pressure in the enclosed space decreases. At this time, the liquid enters through the external hydraulic system connected to the threaded holes 1-9 of the suction port of the pump body.
  • the liquid flow channel enters the pump body suction flow channel a1-1 inside the pump body 1, and the liquid flows from the pump body suction flow channel a1-1 through the pump body-stator I suction port 1-15 and enters the stator I suction of the stator I 16 Liquid port 16-8, the stator I liquid suction port 16-8 through which the liquid passes, flows through the stator I liquid suction channel 16-2, and enters the stator I liquid suction port unloading slot from the stator I liquid suction channel outlet 16-10 16-6. At this time, the liquid enters the enclosed space formed by the rectangular column-drive plate-stator I, and the liquid absorption process of the stator I 16 is completed;
  • Stator I16 draining process When two of the rectangular column pieces 4 close together form a closed space with the drive plate 5 and the oil sealing surface STPO of the stator I16, when the drive shaft 12 drives the column piece 4 to rotate, the column piece 4 passes through the stator When the I16 pressure oil surface TPQU rotates toward the oil sealing surface RQUV, the enclosed space gradually becomes smaller, the pressure in the enclosed space increases, and the volume in the enclosed space decreases.
  • the liquid in this enclosed space is discharged from the stator I liquid discharge port to the unloading slot 16 -7 enters the stator I drain channel 16-3, the liquid flows from the stator I drain channel 16-3 to the stator I drain port 16-9, the stator I drain port 16-9 and the pump body stator I drain port 1-17 connection, the liquid enters the pump body 1 through the stator I liquid discharge port 16-9, and enters the pump body through the pump body stator I liquid discharge port 1-17, and the liquid flows into the pump body.
  • the discharge channel of the external hydraulic system connected to the threaded holes 1-10 of the discharge port, so as to discharge the pump body, and the stator I completes the discharge process;
  • Stator II 3 liquid absorption process When two of the rectangular column pieces 4 closely adhere to the closed space formed by the drive plate 5 and the stator II 2 oil sealing surface IJFE, when the drive shaft 12 drives the column piece 4 to rotate, the column piece 4 passes through the stator II2 When the oil suction surface JFGK rotates to the oil sealing surface HGKL, the pressure in the enclosed space is reduced to form a partial vacuum.
  • the liquid passes through the liquid inlet channel of the external hydraulic system connected with the screw hole 1-9 of the suction port of the pump body Enter the pump body suction channel b1-2 inside the pump body 1, and the liquid flows from the pump body suction channel b1-2 through the pump body-stator II suction port 1-16 into the stator II suction port 3 of the stator II 3. -7, the liquid through the stator II suction port 3-7 flows through the stator II liquid suction channel 3-2, from the stator II liquid suction channel outlet 3-10 into the stator II liquid suction port unloading slot 3-4 At this time, the liquid enters the enclosed space formed by the rectangular column-drive plate-stator II, and the stator II 16 completes the liquid absorption process;
  • Stator II 3 draining process When two of the rectangular column pieces 4 closely adhere to each other and the drive plate 5, stator II 2 oil sealing surface HGKL formed a closed space, when the drive shaft 12 drives the column piece 4 to rotate, the column piece 4 passes through the stator II2 When the oil pressure surface IEHL rotates to the oil sealing surface IJFE, the pressure in the enclosed space increases, and the volume in the enclosed space decreases. The liquid in this enclosed space enters the stator II row through the discharge port 3-5 of the stator II.
  • Liquid flow passage 3-3 liquid flows from stator II liquid discharge flow passage 3-3 to stator II liquid discharge port 3-8, stator II liquid discharge port 3-8 is connected with pump body-stator II liquid discharge port 1-18, The liquid enters the pump body 1 through the stator II discharge port 3-8, and enters the pump body through the pump body-stator II discharge port 1-18, and enters the pump body discharge channel b1-4.
  • the liquid flows into the pump body discharge port thread
  • the drainage channel of the external hydraulic system connected to the holes 1-10 to discharge the pump body, and the stator II completes the drainage process;
  • the high-pressure non-distribution small rectangular column pump is suitable for high-pressure working environment, with compact structure, small size, safety and reliability, convenient use, stable operation, uniform flow, long life and simple manufacturing process.
  • the stator is equipped with an unloading groove, which can slow down the pressure pulsation and effectively reduce the noise;
  • Each group of rectangular column pieces is composed of two rectangular column pieces that are closely connected and combined, with stable operation, uniform flow, long life, safe and reliable, and convenient to use;
  • Figure 1 is a cross-sectional view of the specific structure of the present invention.
  • Figure 2 is the right side view of the pump body
  • Figure 3 is a left view of the pump body
  • Figure 4 A-A structural sectional view of the pump body
  • FIG. 6 is a front view of the stator II
  • Figure 7 is a sectional view of the structure of the stator in the direction of IIA-A;
  • Figure 8 is a sectional view of the structure of the stator in the direction of IIB-B;
  • Figure 9 is the definition diagram of the stator II curved surface
  • Figure 10 is a left view of a rectangular column piece
  • Figure 11 is the right side view of the rectangular column piece
  • Figure 12 is a side view of a rectangular column
  • Figure 13 is a front view of a rectangular column
  • Figure 14 is a front view of the drive disk
  • Figure 15 is a side view of the drive plate
  • Figure 16 is the front view of the pump cover
  • Figure 17 is a sectional view of the pump cover
  • Figure 18 is a front view of the drive shaft
  • Figure 19 is a sectional view of the structure of the drive shaft in the A-A direction;
  • Figure 20 is a sectional view of the structure of the drive shaft in the B-B direction;
  • Figure 21 is a sectional view of the shaft sleeve
  • FIG 22 is a front view of the stator I
  • Figure 23 is a sectional view of the stator IA-A direction structure
  • Figure 24 is a sectional view of the structure of the stator IB-B direction
  • Figure 25 is the definition diagram of the stator I curved surface
  • Figure 26 is a detailed schematic diagram of the contact between the rectangular column piece and the upper part and the stator II.
  • Figure 27 shows the surface generated in MATLAB.
  • a non-distribution plane column pump mainly includes: a pump body 1, a stator II 3, a rectangular column 4, a drive plate 5, a pump cover 10, a transmission shaft 12 and a stator I 16.
  • the transmission shaft 12 is equipped with a stator II3, a driving disc 5, and a stator I16.
  • the stator II3 and the transmission shaft 12 are connected through a bearing II2, and the stator I16 and the transmission shaft 12 are connected through a bearing I15; the driving disc 5 and the transmission shaft 12 are connected through a transmission
  • the shaft-driving disk fixing pin 6 is connected, one side of the driving disk 5 is tangent to the oil sealing surface STPO of the stator I16, and the other side of the driving disk 5 is tangent to the oil sealing surface HGKL of the stator II3.
  • the drive shaft 12, the drive disc 5, the stator II3, the bearing II2, the stator I16 and the bearing I15 are all installed inside the pump body 1, a rectangular column piece 4 is installed between the stator I16 and the stator II3, and the stator I suction port of the stator I16 16-8 is connected with the pump body-stator I suction port 1-15 of the pump body 1, and the stator II suction port 3-7 of the stator II 3 is connected with the pump body-stator II suction port 1-16 of the pump body 1,
  • the stator I drain port 16-9 of the stator I 16 is connected with the pump body-stator I drain port 1-17 of the pump body 1, and the stator II drain port 3-8 of the stator II 3 is connected with the pump body-stator on the pump body 1.
  • the II discharge ports 1-18 are connected, and the pump body-lower stator positioning hole 1-7 at the bottom of the pump body 1 and the stator II-pump body positioning hole 3-1 at the bottom of the stator II 3 are connected by the pump body-stator II positioning pin 17.
  • the sleeve 14 is installed inside the pump cover 10. The sleeve front end 14-1 of the sleeve 14 is in close contact with the inner bearing I15 of the stator I16, and the sleeve rear end 14-2 of the sleeve 14 is in close contact with the oil seal 13 in the pump cover 10.
  • the pump cover 10 is provided with a pump cover-stator I positioning hole 10-4, a pump cover-stator I positioning hole 10-4 and a stator I-pump cover positioning hole 16-1 of the stator I16 through the pump cover-stator I positioning pin 8Connect.
  • the pump cover 10 and the pump body 1 are connected by screws 7, and an O-ring 9 and an oil seal 13 are installed inside the pump cover 10.
  • the transmission shaft 12 is provided with a keyway 12-1, a transmission shaft-drive disk positioning hole 12-2, and a transmission shaft pressure equalizing groove 12-3.
  • the keyway 12-1 is provided in the front part of the transmission shaft through an elastic diaphragm coupling Connected with the motor output shaft, the motor output shaft drives the drive shaft 13 of the column pump to rotate, the drive shaft 13 drives the drive disc 5 to rotate, and drives two rectangular column plates 4 to rotate on the surface of the stator I 16 and the stator II 3.
  • the drive shaft- The drive disc positioning holes 12-2 are symmetrically placed on both sides of the drive shaft 12, and are connected to the drive disc-drive shaft positioning holes 5-1 on the drive disc 5 through the drive disc-drive shaft fixing pin 6 to ensure the drive disc 5
  • the transmission shaft 12 is provided with transmission shaft pressure equalizing grooves 12-3, and the transmission shaft pressure equalizing grooves 12-3 are evenly opened on both sides of the transmission shaft-driving disc positioning hole 12-2.
  • the pump cover 10 is provided with an O-ring mounting groove 10-1, an oil seal mounting hole 10-2, a screw mounting hole 10-3, a pump cover-stator I positioning hole 10-4, and a pump cover-drive shaft mounting hole 10-5, the O-ring 9 is installed in the O-ring installation groove 10-1, the oil seal 13 is installed in the oil-seal installation hole 10-2, and the pump cover 10 is connected with the threaded holes 1-8 of the pump body 1 by screws 7.
  • Pump cover 10 is provided with pump cover-stator I positioning hole 10-4, pump cover-stator I positioning hole 10-4 is connected with stator I positioning hole 16-1 through pump cover-stator I positioning pin 8 and pump cover-drive shaft
  • the drive shaft 10 is installed inside the mounting hole 10-5.
  • the pump body 1 is provided with a pump body suction flow passage a1-1, a pump body suction flow passage b1-2, a pump body discharge flow passage a1-3, a pump body discharge flow passage b1-4, and a pump body suction flow passage b1-2.
  • the end of the body discharge port through hole 1-12 is provided with the pump body discharge port through hole threaded hole 1-14, which is used to install screws to seal the pump body discharge port through hole 1-12; pump body suction channel a1 -1
  • pump body-stator I suction ports 1-15 at the tail pump body-stator I suction ports 1-15 are connected with stator I suction channel 16-8 of stator I 16, and pump body suction channel b1 -2
  • There are pump body-stator II suction ports 1-16 at the tail pump body-stator II suction ports 1-16 are connected with stator I suction channel 3-7 of stator II3, and pump body discharge channel a1 -3
  • the tail is equipped with pump body-stator I drain port 1-17, pump body-stator I drain port 1-17 is connected with stator I drain channel 16-9 of stator I 16, and pump body drain channel b1 -4
  • pump body-stator II discharge ports 1-18 at the tail and pump body-stator II discharge ports 1-18 are connected
  • drive discs 5 There are two drive discs 5, namely drive disc I5-2 and drive disc II 5-3, in which there are two drive disc-drive shaft positioning holes 5-1, drive disc-drive shaft positioning holes 5-1 and The drive shaft-drive disc 12-2 on the drive shaft 12 is connected by a drive disc-drive shaft fixing pin 6.
  • stator II3 is provided with stator II-pump body positioning hole 3-1, stator II liquid inlet flow channel 3-2, stator II liquid discharge flow channel 3-3, stator II liquid inlet and unloading groove 3-4, and stator II Drainage and unloading groove 3-5, bearing mounting hole 3-6, stator II liquid suction port 3-7, stator liquid discharge port 3-8, stator I-drive shaft mounting hole 3-9, stator II liquid suction flow
  • the liquid outlet 3-10, the liquid suction port 3-11 of the stator II discharge channel, the stator II 3 is placed inside the pump body 1, the stator II-the positioning hole of the pump body 3-1 and the pump body-the stator II positioning hole 1- 7 is connected by the pump body-stator II positioning pin 17, the stator II liquid inlet unloading groove 3-4 is placed on the stator II 3 pressure oil surface IEHL, and it is connected with the stator II liquid inlet and outlet 3-10, the stator The II discharge and unloading groove 3-5 is placed on the suction surface JFGK
  • the sleeve 14 is installed inside the pump body 1, and the sleeve front end 14-1 of the sleeve 14 is in close contact with the outer ring of the bearing 15 installed inside the stator I bearing mounting hole 16-4 in the stator I 16, and is used to support the bearing 15.
  • the sleeve rear end 14-2 of the sleeve 14 is connected with the oil seal 13 for supporting the oil seal 13.
  • stator I16 is provided with a stator I-pump cover positioning hole 16-1, a stator I liquid suction channel 16-2, a stator I liquid discharge channel 16-3, a bearing mounting hole 16-4, and a stator I-drive shaft Mounting hole 16-5, stator II suction port unloading groove 16-6, stator I liquid discharge port unloading groove 16-7, stator I liquid suction port 16-8, stator I liquid discharge port 16-9, stator I Liquid suction channel outlet 16-10, stator I discharge channel liquid suction inlet 16-11, stator I 16 is inside the pump body 1, close to the inner surface of the pump body 1, stator I-pump cover positioning hole 16- 1 Connect the pump cover-stator I positioning pin 8 with the pump cover-stator I positioning hole 10-4, the stator I suction port unloading slot 16-6 is placed on the stator I 16 oil suction surface SORV, and is connected to the stator I suction flow channel The liquid outlet 16-10 is connected, and the stator I liquid discharge port un
  • rectangular column pieces 4 which are respectively installed between the drive disk I5-2 and the drive disk II 5-3, and the rectangular column pieces 4 are attached to each other, and the top of the elliptical surface AA'BB' of the rectangular column piece 4 XZYW and X'Z'Y'W' at the top of the ellipse CC'DD' are in close contact with the curved surface of the stator I16 and the stator II3 respectively, no interference, no leakage, and radial movement of the column can be realized; rectangular column 4 The arc surface WW'XX' is in close contact with the outer surface of the drive shaft 12, and the rectangular column piece 4 is in close contact with the arc surface YY'ZZ' and the inner surface of the pump body 1.
  • the curved surfaces of the stator I16 and the stator II3 are composed of four parts. There are two spiral transition surfaces and two arc surfaces.
  • the two spiral transition surfaces of stator I16 are the oil suction surface SORV and the oil pressure surface TPQU.
  • the two arc surfaces of the stator I16 constitute the oil sealing surface RQUV and the oil sealing surface.
  • stator II3 the two spiral transition surfaces of stator II3 are oil suction surface JFGK and oil pressure surface IEHL, two arc surfaces of stator I16 constitute oil sealing surface IJFE and oil sealing surface HGKL respectively; stator I16 and stator II3 and two columns Sealed cavities M, N are formed between the curved surfaces of the sheets, and the sealed cavities M, N are filled with liquid, which has the function of sealing and lubricating.

Abstract

一种无配流平面柱片泵，包括泵体（1）、定子Ⅱ（3）、矩形柱片（4）、驱动盘（5）、泵盖（10）、传动轴（12）、定子Ⅰ（16）。无配流平面柱片泵由于设计的结构对称，无配流，适用于高压工作环境，有效地减少了因受力不平衡产生的噪声和泄露，流量均匀，寿命较长，制作工艺简单，大大降低加工成本，具有很广阔的应用前景。

Description

一种无配流平面柱片泵 技术领域
本发明涉及一种无配流平面柱片泵，属于液压机械元件技术领域。无需配流，适用于高压工作环境，结构紧凑，外形尺寸小，安全可靠、使用方便、运转平稳，流量均匀，寿命较长，制作工艺简单，大大降低加工成本，具有很广阔的市场前景。可以广泛应用于矿业、冶金、电力部门、国防建设、农业灌溉、石油化工、船舶制造工业等行业中。
背景技术
随着社会、生活、生产水平的不断提高，液压技术已经广泛地应用于工程机械、压力机械和航空工业等领域，液压机械设备元件应用越来越广泛，对泵的性能要求越来越高。根据原由的几种简单结构类型的液压泵，现液压泵变得结构种类日益繁多，高压无配流小型矩形柱片泵是目前国内一种结构新颖、无配流且尺寸小的泵类。齿轮泵体积较小，结构较简单，对有的清洁度要求不严格，价格便宜，但由于泵轴受不平衡力，磨损严重，泄露较大；叶片泵流量均匀、运转平稳、噪声小，但结构较复杂，柱塞泵容积效率高、泄漏小，可在高压下工作，大多用于较大功率的液压系统，但要求加工精度很高、价格贵、对油的清洁度要求高。无配流平面柱片泵适用于高压工作环境，结构紧凑，外形尺寸小，安全可靠、使用方便、运转平稳，流量均匀，寿命较长，制作工艺简单。
发明内容
本发明要解决的技术问题是：一种无配流液压平面柱片泵，高压无配流小型矩形柱片泵适用于高压工作环境，高压无配矩形柱片片泵结构简单，由于此新型矩形柱片泵设计的结构对称，因此有效地减少了因受力不平衡产生的噪声和泄露，高压无配流矩形柱片泵流量均匀，寿命较长，制作工艺简单。
本发明技术方案是：一种无配流平面柱片泵，包括：泵体1、定子Ⅱ3、矩形柱片4、驱动盘5、泵盖10、传动轴12和定子Ⅰ16。
所述传动轴12上安装定子Ⅱ3、驱动盘5、定子Ⅰ16，定子Ⅱ3与传动轴12通过轴承Ⅱ2连接，定子Ⅰ16与传动轴12通过轴承Ⅰ15连接；所述驱动盘5与传动轴12通过传动轴-驱动盘固定销6连接，驱动盘5的一面与定子Ⅰ16封油面STPO相切，驱动盘5的另一面的与定子Ⅱ3的封油面HGKL相切。传动轴12、驱动盘5、定子Ⅱ3、轴承Ⅱ2、定子Ⅰ16和轴承Ⅰ15均安装于泵体1的内部，定子Ⅰ16与定子Ⅱ3之间安装有矩形柱片4，定子Ⅰ16的定子Ⅰ吸液口16-8与泵体1的泵体-定子Ⅰ吸液口1-15连通，定子Ⅱ3的定子Ⅱ吸液口3-7与泵体1的泵体-定子Ⅱ吸液口1-16连通，定子Ⅰ16的定子Ⅰ排液口16-9与泵体1的泵体-定子Ⅰ排液口1-17连通，定 子Ⅱ3的定子Ⅱ排液口3-8与泵体1上的泵体-定子Ⅱ排液口1-18连通，泵体1底部的泵体-下定子定位孔1-7与定子Ⅱ3底部的定子Ⅱ-泵体定位孔3-1通过泵体-定子Ⅱ定位销17连接。轴套14安装在泵盖10内部，轴套14的轴套前端14-1与定子Ⅰ16内部轴承Ⅰ15紧贴，轴套14的轴套后端14-2与泵盖10内的油封13紧贴，泵盖10上设有泵盖-定子Ⅰ定位孔10-4，泵盖-定子Ⅰ定位孔10-4与定子Ⅰ16的定子Ⅰ-泵盖定位孔16-1通过泵盖-定子Ⅰ定位销8连接。泵盖10与泵体1通过螺钉7连接，泵盖10内部安装O型密封圈9和油封13。
所述传动轴12设有键槽12-1、传动轴-驱动盘定位孔12-2和传动轴均压槽12-3，键槽12-1设在传动轴前段部分，通过弹性膜片联轴器与电机输出轴连接，电机输出轴带动柱片泵的传动轴13转动，传动轴13带动驱动盘5转动，带动两处矩形柱片4在定子Ⅰ16和定子Ⅱ3的面上进行转动，传动轴-驱动盘定位孔12-2对称置于传动轴12的两侧，并通过驱动盘-传动轴固定销6与驱动盘5上的驱动盘-传动轴定位孔5-1连接，为保证驱动盘5在工作时稳定性，在传动轴12设有传动轴均压槽12-3，传动轴均压槽12-3均匀开设在传动轴-驱动盘定位孔12-2的两侧。
所述泵盖10上开设有O型密封圈安装槽10-1、油封安装孔10-2、螺钉安装孔10-3、泵盖-定子Ⅰ定位孔10-4、泵盖-传动轴安装孔10-5，O型密封圈安装槽10-1内安装O型密封圈9，油封安装孔10-2内安装油封13，泵盖10与泵体1的螺纹孔1-8通过螺钉7连接，泵盖10设有泵盖-定子Ⅰ定位孔10-4，泵盖-定子Ⅰ定位孔10-4通过泵盖-定子Ⅰ定位销8与定子Ⅰ定位孔16-1连接，泵盖-传动轴安装孔10-5内部安装传动轴10。
所述泵体1设有泵体吸液流道a1-1、泵体吸液流道b1-2、泵体排液流道a1-3、泵体排液流道b1-4、泵体吸液口1-5、泵体排液口1-6、泵体-定子Ⅱ定位孔1-7、泵体-泵盖螺纹孔1-8、泵体吸液口螺纹孔1-9、泵体排液口螺纹孔1-10、泵体吸液口通孔1-11、泵体排液口通孔1-12、泵体吸液口通孔螺纹孔1-13、泵体排液口通孔螺纹孔1-14、泵体-定子Ⅰ吸液口1-15、泵体-定子Ⅱ吸液口1-16、泵体-定子Ⅰ排液口1-17、泵体-定子Ⅱ排液口1-18；对吸液流道进行加工时，由泵体吸液口通孔1-11进行加工，并在泵体吸液口通孔1-11尾部开设泵体吸液口通孔螺纹孔1-13，用于安装螺钉对泵体吸液口通孔1-11进行密封；对排液流道进行加工时，由泵体排液口通孔1-12尾部进行加工，并在泵体排液口通孔1-12尾部设有泵体排液口通孔螺纹孔1-14，用于安装螺钉对泵体排液口通孔1-12进行密封；泵体吸液流道a1-1尾部设有泵体-定子Ⅰ吸液口1-15，泵体-定子Ⅰ吸液口1-15与定子Ⅰ16的定子Ⅰ吸液流道16-8连通，泵体吸液流道b1-2尾部设有泵体-定子Ⅱ吸液口1-16，泵体-定子Ⅱ吸液口1-16与定子Ⅱ3的定子Ⅰ吸液流道3-7连通，泵体排液流道a1-3尾部设有泵体-定子Ⅰ排液口1-17，泵体-定子Ⅰ排液口1-17与定子Ⅰ16的定子Ⅰ排液流道16-9连通，泵体排液流道b1-4尾部设有泵体-定子Ⅱ排液口1-18，泵体-定子Ⅱ排液口1-18 与定子Ⅱ3中的定子Ⅰ排液流道3-8连通；泵体开设泵体-定子Ⅱ定位孔1-7，泵体-定子Ⅱ定位孔1-7与定子Ⅱ-泵体定位孔3-1通过泵体-定子Ⅱ定位销17连接；泵体1开设有泵体-泵盖螺纹孔1-8，泵体-泵盖螺纹孔1-8与泵盖10上的螺钉安装孔10-3通过螺钉7连接；泵体吸液口螺纹孔1-9与外部液压系统的吸液口连接，为矩形柱片泵提供液体；泵体排液口螺纹孔1-10与外部液压系统的排液口连接，将平面柱片泵内部液体排出泵体。
所述驱动盘5共有两处，分别为驱动盘Ⅰ5-2和驱动盘Ⅱ5-3，其中设有两处驱动盘-传动轴定位孔5-1，驱动盘-传动轴定位孔5-1与传动轴12上的传动轴-驱动盘12-2通过驱动盘-传动轴固定销6连接。
所述定子Ⅱ3，设有定子Ⅱ-泵体定位孔3-1、定子Ⅱ进液流道3-2，定子Ⅱ排液流道3-3、定子Ⅱ进液卸荷槽3-4、定子Ⅱ排液卸荷槽3-5、轴承安装孔3-6、定子Ⅱ吸液口3-7、定子排液口3-8、定子Ⅰ-传动轴安装孔3-9、定子Ⅱ吸液流道出液口3-10、定子Ⅱ排液流道吸液口3-11，定子Ⅱ3置于泵体1内部，定子Ⅱ-泵体定位孔3-1与泵体-定子Ⅱ定位孔1-7通过泵体-定子Ⅱ定位销17连接，定子Ⅱ进液口卸荷槽3-4置于定子Ⅱ3压油面IEHL上，并与定子Ⅱ进液流道出液口3-10连通，定子Ⅱ排液卸荷槽3-5置于定子Ⅱ3吸油面JFGK上，并定子Ⅱ排液流道吸液口3-11连通，轴承安装孔3-6安装轴承Ⅱ2，定子Ⅰ-传动轴安装孔3-9与传动轴12连接，定子Ⅰ吸液口9-7与泵体-定子Ⅰ吸液口1-15连通，定子Ⅰ排液口3-8与泵体-定子Ⅰ排液口1-17连通。
所述轴套14安装在泵体1内部，轴套14的轴套前端14-1与定子Ⅰ16中定子Ⅰ轴承安装孔16-4内部安装的轴承15外圈紧贴，用于支撑轴承15，轴套14的轴套后端14-2与油封13连接，用于支撑油封13。
所述定子Ⅰ16，设有定子Ⅰ-泵盖定位孔16-1、定子Ⅰ吸液流道16-2、定子Ⅰ排液流道16-3、轴承安装孔16-4、定子Ⅰ-传动轴安装孔16-5、定子Ⅱ吸液口卸荷槽16-6、定子Ⅰ排液口卸荷槽16-7、定子Ⅰ吸液口16-8、定子Ⅰ排液口16-9、定子Ⅰ吸液流道出液口16-10、定子Ⅰ排液流道吸液口16-11，定子Ⅰ16在泵体1内部，与泵体1内表面紧贴，定子Ⅰ-泵盖定位孔16-1通过泵盖-定子Ⅰ定位销8与泵盖-定子Ⅰ定位孔10-4连接，定子Ⅰ吸液口卸载槽16-6置于定子Ⅰ16吸油面SORV上，并与定子Ⅰ吸液流道出液口16-10连通，定子Ⅰ排液口卸载槽16-7置于定子Ⅰ16的压油面TPQU上，并与定子Ⅰ排液流道吸液口16-11连通，轴承安装孔16-4内安装有轴承15，定子Ⅰ-传动轴安装孔16-5与传动轴12通过轴承Ⅰ15连接。定子Ⅱ吸液口16-8与泵体-定子Ⅱ吸液口1-16连通，定子Ⅱ排液口16-9与泵体-定子Ⅱ排液口1-18连通。
所述矩形柱片4共设多片，分别安装于驱动盘Ⅰ5-2和驱动盘Ⅱ5-3之间，且各矩形柱片4相互贴合，矩形柱片4的椭圆面AA’BB’顶端处XZYW和椭圆面CC’DD’顶端处X’Z’Y’W’分别 与定子Ⅰ16曲面和定子Ⅱ3曲面紧贴，无干涉，无泄漏，并可实现柱片径向移动；矩形柱片4圆弧面WW’XX’与传动轴12外表面紧贴，矩形柱片4圆弧面YY’ZZ’和泵体1内表面紧贴。
所述定子Ⅰ16和定子Ⅱ3曲面共有四部分构成。分别为两段螺旋过渡面和两段圆弧面，定子Ⅰ16的两段螺旋过渡面分别为吸油面SORV和压油面TPQU,定子Ⅰ16的两段圆弧面分别构成封油面RQUV和封油面STPO，定子Ⅱ3的两段螺旋过渡面分别为吸油面JFGK和压油面IEHL,定子Ⅰ16的两段圆弧面分别构成封油面IJFE和封油面HGKL；定子Ⅰ16和定子Ⅱ3与两柱片曲面之间形成密封腔M、N，密封腔M、N内充满液体，具有密封、润滑的作用。
本发明的工作过程是：传动轴13通过弹性膜片联轴器与电机输出轴连接，电机输出轴带动矩形柱片泵的传动轴13转动，传动轴13带动驱动盘5转动，带动两处矩形柱片4在定子Ⅰ16和定子Ⅱ3的面上进行转动。
工作过程共分为四个部分：
(1)定子Ⅰ16吸液过程；
(2)定子Ⅰ16排液过程；
(3)定子Ⅱ3吸液过程；
(4)定子Ⅱ3排液过程；
定子Ⅰ16吸液过程：当矩形柱片4中的其中紧贴的两片与驱动盘5、定子Ⅰ16封油面RQUV形成的密闭空间，当传动轴12带动柱片4转动，柱片4通过定子Ⅰ16吸油面SORV向封油面STPO转动时，密闭空间逐渐变大时，密闭空间内的压强减小，此时液体通过与泵体吸液口螺纹孔1-9所连接的外部液压系统的进液流道进入泵体1内部的泵体吸液流道a1-1，液体由泵体吸液流道a1-1流经泵体-定子Ⅰ吸液口1-15进入定子Ⅰ16的定子Ⅰ吸液口16-8，液体通过的定子Ⅰ吸液口16-8流经定子Ⅰ吸液流道16-2，由定子Ⅰ吸液流道出液口16-10进入定子Ⅰ吸液口卸载槽16-6，此时，液体进入矩形柱片-驱动盘-定子Ⅰ所形成的密闭空间内，定子Ⅰ16的完成吸液过程；
定子Ⅰ16排液过程：当矩形柱片4中的其中紧贴的两片与驱动盘5、定子Ⅰ16封油面STPO形成的密闭空间，当传动轴12带动柱片4转动，柱片4通过定子Ⅰ16压油面TPQU向封油面RQUV转动时，密闭空间逐渐变小时，密闭空间内的压强增大，密闭空间内的体积减小，此密闭空间内的液体由定子Ⅰ排液口卸载槽16-7进入定子Ⅰ排液流道16-3，液体由定子Ⅰ排液流道16-3至定子Ⅰ排液口16-9，定子Ⅰ排液口16-9与泵体定子Ⅰ排液口1-17连接，液体通过定子Ⅰ排液口16-9进入泵体1，通过泵体定子Ⅰ排液口1-17进入泵体内部泵体排液流道a1-3，液体流入与泵体排液口螺纹孔1-10连接的外部液压系统的排液流道，从而排出泵体，定子Ⅰ完成排液 过程；
定子Ⅱ3吸液过程：当矩形柱片4中的其中紧贴的两片与驱动盘5、定子Ⅱ2封油面IJFE形成的密闭空间，当传动轴12带动柱片4转动，柱片4通过定子Ⅱ2吸油面JFGK向封油面HGKL转动时，密闭空间内的压强减小，形成局部真空，此时液体通过与泵体吸液口螺纹孔1-9所连接的外部液压系统的进液流道进入泵体1内部的泵体吸液流道b1-2，液体由泵体吸液流道b1-2流经泵体-定子Ⅱ吸液口1-16进入定子Ⅱ3的定子Ⅱ吸液口3-7，液体通过的定子Ⅱ吸液口3-7流经定子Ⅱ吸液流道3-2，由定子Ⅱ吸液流道出液口3-10进入定子Ⅱ吸液口卸载槽3-4，此时，液体进入矩形柱片-驱动盘-定子Ⅱ所形成的密闭空间内，定子Ⅱ16完成吸液过程；
定子Ⅱ3排液过程：当矩形柱片4中的其中紧贴的两片与驱动盘5、定子Ⅱ2封油面HGKL形成的密闭空间，当传动轴12带动柱片4转动，柱片4通过定子Ⅱ2压油面IEHL向封油面IJFE转动时，密闭空间内的压强增大，密闭空间内的体积减小，此密闭空间内的液体由定子Ⅱ排液口卸载槽3-5进入定子Ⅱ排液流道3-3，液体由定子Ⅱ排液流道3-3至定子Ⅱ排液口3-8，定子Ⅱ排液口3-8与泵体-定子Ⅱ排液口1-18连接，液体通过定子Ⅱ排液口3-8进入泵体1，通过泵体-定子Ⅱ排液口1-18进入泵体内部泵体排液流道b1-4，液体流入与泵体排液口螺纹孔1-10连接的外部液压系统的排液流道，从而排出泵体，定子Ⅱ完成排液过程；
高压无配流小型矩形柱片泵适用于高压工作环境，结构紧凑，外形尺寸小，安全可靠、使用方便、运转平稳，流量均匀，寿命较长，制作工艺简单。
本发明的有益效果：
(1)无需配流，工作寿命长，结构紧凑，外形尺寸小，适用工况较多；
(2)定子设有卸载槽，可减缓压力脉动，并有效降低噪音；
(3)每组矩形柱片均有两个矩形柱片紧密连接组合而成，运转平稳，流量均匀，寿命较长、安全可靠、使用方便；
附图说明
图1为本发明具体结构剖视图；
图2为泵体右视图；
图3为泵体左视图；
图4泵体A-A结构剖面图；
图5泵体1B-B结构剖面图；
图6为定子Ⅱ主视图；
图7为定子ⅡA-A方向结构剖面图；
图8为定子ⅡB-B方向结构剖面图；
图9为定子Ⅱ曲面定义图；
图10为矩形柱片左视图；
图11为矩形柱片右视图；
图12为矩形柱片侧视图；
图13为矩形柱片主视图；
图14为驱动盘主视图；
图15为驱动盘侧视图；
图16为泵盖主视图；
图17为泵盖剖视图；
图18为传动轴主视图；
图19为传动轴A-A方向结构剖面图；
图20为传动轴B-B方向结构剖面图；
图21为轴套剖视图；
图22为定子Ⅰ主视图；
图23为定子ⅠA-A方向结构剖面图；
图24为定子ⅠB-B方向结构剖面图；
图25为定子Ⅰ曲面定义图；
图26为矩形柱片与上部、定子Ⅱ接触细节示意图。
图27为MATLAB中所生成的曲面。
图中各标号：1泵体，1-1泵体吸液流道a，1-2泵体吸液流道b，1-3泵体排液流道a，1-4泵体排液流道b，1-5泵体吸液口，1-6泵体排液口，1-7泵体-定子Ⅱ定位孔，1-8泵体-泵盖螺纹孔，1-9泵体吸液口螺纹孔，1-10泵体排液口螺纹孔，1-11泵体吸液口通孔，1-12泵体排液口通孔，1-13泵体吸液口通孔螺纹孔，1-14泵体排液口通孔螺纹孔，1-15泵体-定子Ⅰ吸液口，1-16泵体-定子Ⅱ吸液口，1-17泵体-定子Ⅰ排液口，1-18泵体-定子Ⅱ排液口，2-轴承Ⅱ，3定子Ⅱ，3-1定子Ⅱ定位孔，3-2定子Ⅱ吸液流道，3-3定子Ⅱ排液流道，3-4定子Ⅱ吸液口卸载槽，3-5定子Ⅱ排液口卸载槽，3-6轴承安装孔，3-7定子Ⅱ吸液口，3-8定子Ⅱ排液口，3-9定子Ⅱ-传动轴安装孔，3-10定子Ⅱ-吸液流道出液口，3-11定子Ⅱ排液流道吸液口，4矩形柱片，5驱动盘，5-1驱动盘-传动轴定位孔，5-2驱动盘Ⅰ，5-3驱动盘Ⅱ，6驱动盘-传动轴固定销，7螺钉，8泵盖-定子Ⅰ定位销，9O型密封圈，10泵盖，10-1O型密封圈安装槽，10-2油封安装孔，10-3螺钉 安装孔，10-4泵盖-定子Ⅰ定位孔，10-5泵盖-传动轴安装孔，11平键，12传动轴，12-1键槽，12-2传动轴-驱动盘定位孔，12-3传动轴均压槽，13油封，14轴套，15轴承Ⅰ，16定子Ⅰ，16-1定子Ⅰ-泵盖定位孔，16-2定子Ⅰ吸液流道，16-3定子Ⅰ排液流道，16-4轴承安装孔，16-5定子Ⅰ-传动轴安装孔，16-6定子Ⅱ吸液口卸载槽，16-7定子Ⅰ排液口卸载槽，16-8定子Ⅰ吸液口，16-9定子Ⅰ排液口，16-10定子Ⅰ吸液流道出液口，16-11定子Ⅰ排液流道吸液口，17泵体-定子Ⅱ定位销
具体实施方式
下面结合附图和具体实施例，对本发明作进一步说明。
一种无配流平面柱片泵，主要包括：泵体1、定子Ⅱ3、矩形柱片4、驱动盘5、泵盖10、传动轴12和定子Ⅰ16。
所述传动轴12上安装定子Ⅱ3、驱动盘5、定子Ⅰ16，定子Ⅱ3与传动轴12通过轴承Ⅱ2连接，定子Ⅰ16与传动轴12通过轴承Ⅰ15连接；所述驱动盘5与传动轴12通过传动轴-驱动盘固定销6连接，驱动盘5的一面与定子Ⅰ16封油面STPO相切，驱动盘5的另一面的与定子Ⅱ3的封油面HGKL相切。传动轴12、驱动盘5、定子Ⅱ3、轴承Ⅱ2、定子Ⅰ16和轴承Ⅰ15均安装于泵体1的内部，定子Ⅰ16与定子Ⅱ3之间安装有矩形柱片4，定子Ⅰ16的定子Ⅰ吸液口16-8与泵体1的泵体-定子Ⅰ吸液口1-15连通，定子Ⅱ3的定子Ⅱ吸液口3-7与泵体1的泵体-定子Ⅱ吸液口1-16连通，定子Ⅰ16的定子Ⅰ排液口16-9与泵体1的泵体-定子Ⅰ排液口1-17连通，定子Ⅱ3的定子Ⅱ排液口3-8与泵体1上的泵体-定子Ⅱ排液口1-18连通，泵体1底部的泵体-下定子定位孔1-7与定子Ⅱ3底部的定子Ⅱ-泵体定位孔3-1通过泵体-定子Ⅱ定位销17连接。轴套14安装在泵盖10内部，轴套14的轴套前端14-1与定子Ⅰ16内部轴承Ⅰ15紧贴，轴套14的轴套后端14-2与泵盖10内的油封13紧贴，泵盖10上设有泵盖-定子Ⅰ定位孔10-4，泵盖-定子Ⅰ定位孔10-4与定子Ⅰ16的定子Ⅰ-泵盖定位孔16-1通过泵盖-定子Ⅰ定位销8连接。泵盖10与泵体1通过螺钉7连接，泵盖10内部安装O型密封圈9和油封13。
所述传动轴12设有键槽12-1、传动轴-驱动盘定位孔12-2和传动轴均压槽12-3，键槽12-1设在传动轴前段部分，通过弹性膜片联轴器与电机输出轴连接，电机输出轴带动柱片泵的传动轴13转动，传动轴13带动驱动盘5转动，带动两处矩形柱片4在定子Ⅰ16和定子Ⅱ3的面上进行转动，传动轴-驱动盘定位孔12-2对称置于传动轴12的两侧，并通过驱动盘-传动轴固定销6与驱动盘5上的驱动盘-传动轴定位孔5-1连接，为保证驱动盘5在工作时稳定性，在传动轴12设有传动轴均压槽12-3，传动轴均压槽12-3均匀开设在传动轴-驱动盘定位孔12-2的两侧。
所述泵盖10上开设有O型密封圈安装槽10-1、油封安装孔10-2、螺钉安装孔10-3、泵盖- 定子Ⅰ定位孔10-4、泵盖-传动轴安装孔10-5，O型密封圈安装槽10-1内安装O型密封圈9，油封安装孔10-2内安装油封13，泵盖10与泵体1的螺纹孔1-8通过螺钉7连接，泵盖10设有泵盖-定子Ⅰ定位孔10-4，泵盖-定子Ⅰ定位孔10-4通过泵盖-定子Ⅰ定位销8与定子Ⅰ定位孔16-1连接，泵盖-传动轴安装孔10-5内部安装传动轴10。
所述泵体1设有泵体吸液流道a1-1、泵体吸液流道b1-2、泵体排液流道a1-3、泵体排液流道b1-4、泵体吸液口1-5、泵体排液口1-6、泵体-定子Ⅱ定位孔1-7、泵体-泵盖螺纹孔1-8、泵体吸液口螺纹孔1-9、泵体排液口螺纹孔1-10、泵体吸液口通孔1-11、泵体排液口通孔1-12、泵体吸液口通孔螺纹孔1-13、泵体排液口通孔螺纹孔1-14、泵体-定子Ⅰ吸液口1-15、泵体-定子Ⅱ吸液口1-16、泵体-定子Ⅰ排液口1-17、泵体-定子Ⅱ排液口1-18；对吸液流道进行加工时，由泵体吸液口通孔1-11进行加工，并在泵体吸液口通孔1-11尾部开设泵体吸液口通孔螺纹孔1-13，用于安装螺钉对泵体吸液口通孔1-11进行密封；对排液流道进行加工时，由泵体排液口通孔1-12尾部进行加工，并在泵体排液口通孔1-12尾部设有泵体排液口通孔螺纹孔1-14，用于安装螺钉对泵体排液口通孔1-12进行密封；泵体吸液流道a1-1尾部设有泵体-定子Ⅰ吸液口1-15，泵体-定子Ⅰ吸液口1-15与定子Ⅰ16的定子Ⅰ吸液流道16-8连通，泵体吸液流道b1-2尾部设有泵体-定子Ⅱ吸液口1-16，泵体-定子Ⅱ吸液口1-16与定子Ⅱ3的定子Ⅰ吸液流道3-7连通，泵体排液流道a1-3尾部设有泵体-定子Ⅰ排液口1-17，泵体-定子Ⅰ排液口1-17与定子Ⅰ16的定子Ⅰ排液流道16-9连通，泵体排液流道b1-4尾部设有泵体-定子Ⅱ排液口1-18，泵体-定子Ⅱ排液口1-18与定子Ⅱ3中的定子Ⅰ排液流道3-8连通；泵体开设泵体-定子Ⅱ定位孔1-7，泵体-定子Ⅱ定位孔1-7与定子Ⅱ-泵体定位孔3-1通过泵体-定子Ⅱ定位销17连接；泵体1开设有泵体-泵盖螺纹孔1-8，泵体-泵盖螺纹孔1-8与泵盖10上的螺钉安装孔10-3通过螺钉7连接；泵体吸液口螺纹孔1-9与外部液压系统的吸液口连接，为矩形柱片泵提供液体；泵体排液口螺纹孔1-10与外部液压系统的排液口连接，将平面柱片泵内部液体排出泵体。
所述驱动盘5共有两处，分别为驱动盘Ⅰ5-2和驱动盘Ⅱ5-3，其中设有两处驱动盘-传动轴定位孔5-1，驱动盘-传动轴定位孔5-1与传动轴12上的传动轴-驱动盘12-2通过驱动盘-传动轴固定销6连接。
所述定子Ⅱ3，设有定子Ⅱ-泵体定位孔3-1、定子Ⅱ进液流道3-2，定子Ⅱ排液流道3-3、定子Ⅱ进液卸荷槽3-4、定子Ⅱ排液卸荷槽3-5、轴承安装孔3-6、定子Ⅱ吸液口3-7、定子排液口3-8、定子Ⅰ-传动轴安装孔3-9、定子Ⅱ吸液流道出液口3-10、定子Ⅱ排液流道吸液口3-11，定子Ⅱ3置于泵体1内部，定子Ⅱ-泵体定位孔3-1与泵体-定子Ⅱ定位孔1-7通过泵体-定子Ⅱ定位销17连接，定子Ⅱ进液口卸荷槽3-4置于定子Ⅱ3压油面IEHL上，并与定子Ⅱ进液流道出液口 3-10连通，定子Ⅱ排液卸荷槽3-5置于定子Ⅱ3吸油面JFGK上，并定子Ⅱ排液流道吸液口3-11连通，轴承安装孔3-6安装轴承Ⅱ2，定子Ⅰ-传动轴安装孔3-9与传动轴12连接，定子Ⅰ吸液口9-7与泵体-定子Ⅰ吸液口1-15连通，定子Ⅰ排液口3-8与泵体-定子Ⅰ排液口1-17连通。
所述轴套14安装在泵体1内部，轴套14的轴套前端14-1与定子Ⅰ16中定子Ⅰ轴承安装孔16-4内部安装的轴承15外圈紧贴，用于支撑轴承15，轴套14的轴套后端14-2与油封13连接，用于支撑油封13。
所述定子Ⅰ16，设有定子Ⅰ-泵盖定位孔16-1、定子Ⅰ吸液流道16-2、定子Ⅰ排液流道16-3、轴承安装孔16-4、定子Ⅰ-传动轴安装孔16-5、定子Ⅱ吸液口卸荷槽16-6、定子Ⅰ排液口卸荷槽16-7、定子Ⅰ吸液口16-8、定子Ⅰ排液口16-9、定子Ⅰ吸液流道出液口16-10、定子Ⅰ排液流道吸液口16-11，定子Ⅰ16在泵体1内部，与泵体1内表面紧贴，定子Ⅰ-泵盖定位孔16-1通过泵盖-定子Ⅰ定位销8与泵盖-定子Ⅰ定位孔10-4连接，定子Ⅰ吸液口卸载槽16-6置于定子Ⅰ16吸油面SORV上，并与定子Ⅰ吸液流道出液口16-10连通，定子Ⅰ排液口卸载槽16-7置于定子Ⅰ16的压油面TPQU上，并与定子Ⅰ排液流道吸液口16-11连通，轴承安装孔16-4内安装有轴承15，定子Ⅰ-传动轴安装孔16-5与传动轴12通过轴承Ⅰ15连接。定子Ⅱ吸液口16-8与泵体-定子Ⅱ吸液口1-16连通，定子Ⅱ排液口16-9与泵体-定子Ⅱ排液口1-18连通。
所述矩形柱片4共设多片，分别安装于驱动盘Ⅰ5-2和驱动盘Ⅱ5-3之间，且各矩形柱片4相互贴合，矩形柱片4的椭圆面AA’BB’顶端处XZYW和椭圆面CC’DD’顶端处X’Z’Y’W’分别与定子Ⅰ16曲面和定子Ⅱ3曲面紧贴，无干涉，无泄漏，并可实现柱片径向移动；矩形柱片4圆弧面WW’XX’与传动轴12外表面紧贴，矩形柱片4圆弧面YY’ZZ’和泵体1内表面紧贴。
所述定子Ⅰ16和定子Ⅱ3曲面共有四部分构成。分别为两段螺旋过渡面和两段圆弧面，定子Ⅰ16的两段螺旋过渡面分别为吸油面SORV和压油面TPQU,定子Ⅰ16的两段圆弧面分别构成封油面RQUV和封油面STPO，定子Ⅱ3的两段螺旋过渡面分别为吸油面JFGK和压油面IEHL,定子Ⅰ16的两段圆弧面分别构成封油面IJFE和封油面HGKL；定子Ⅰ16和定子Ⅱ3与两柱片曲面之间形成密封腔M、N，密封腔M、N内充满液体，具有密封、润滑的作用。
上面结合附图对本发明的具体实施例作了详细说明，但是本发明并不限于上述实施例，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。

Claims (10)

  1. 一种无配流平面柱片泵，其特征在于：包括泵体(1)、定子Ⅱ(3)、矩形柱片(4)、驱动盘(5)、泵盖(10)、传动轴(12)和定子Ⅰ(16)；
    所述传动轴(12)上安装定子Ⅱ(3)、驱动盘(5)、定子Ⅰ(16)，定子Ⅱ(3)与传动轴(12)通过轴承Ⅱ(2)连接，定子Ⅰ(16)与传动轴(12)通过轴承Ⅰ(15)连接；所述驱动盘(5)与传动轴(12)通过传动轴-驱动盘固定销(6)连接，驱动盘(5)的一面与定子Ⅰ(16)封油面STPO相切，驱动盘(5)的另一面的与定子Ⅱ(3)的封油面HGKL相切；传动轴(12)、驱动盘(5)、定子Ⅱ(3)、轴承Ⅱ(2)、定子Ⅰ(16)和轴承Ⅰ(15)均安装于泵体(1)的内部，定子Ⅰ(16)与定子Ⅱ(3)之间安装有矩形柱片(4)，定子Ⅰ(16)的定子Ⅰ吸液口(16-8)与泵体(1)的泵体-定子Ⅰ吸液口(1-15)连通，定子Ⅱ(3)的定子Ⅱ吸液口(3-7)与泵体(1)的泵体-定子Ⅱ吸液口(1-16)连通，定子Ⅰ(16)的定子Ⅰ排液口(16-9)与泵体(1)的泵体-定子Ⅰ排液口(1-17)连通，定子Ⅱ(3)的定子Ⅱ排液口(3-8)与泵体(1)上的泵体-定子Ⅱ排液口(1-18)连通，泵体(1)底部的泵体-下定子定位孔(1-7)与定子Ⅱ(3)底部的定子Ⅱ-泵体定位孔(3-1)通过泵体-定子Ⅱ定位销(17)连接；轴套(14)安装在泵盖(10)内部，轴套(14)的轴套前端(14-1)与定子Ⅰ(16)内部轴承Ⅰ(15)紧贴，轴套(14)的轴套后端(14-2)与泵盖(10)内的油封(13)紧贴，泵盖(10)上设有泵盖-定子Ⅰ定位孔(10-4)，泵盖-定子Ⅰ定位孔(10-4)与定子Ⅰ(16)的定子Ⅰ-泵盖定位孔(16-1)通过泵盖-定子Ⅰ定位销(8)连接；泵盖(10)与泵体(1)通过螺钉(7)连接，泵盖(10)内部安装O型密封圈(9)和油封(13)。
  2. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述传动轴(12)上设有键槽(12-1)、传动轴-驱动盘定位孔(12-2)和传动轴均压槽(12-3)，键槽(12-1)设在传动轴(12)的前段部分，通过弹性膜片联轴器与电机输出轴连接，电机输出轴带动柱片泵的传动轴(13)转动，传动轴(13)带动驱动盘(5)转动，带动两处矩形柱片(4)在定子Ⅰ(16)和定子Ⅱ(3)的面上进行转动，传动轴-驱动盘定位孔(12-2)对称置于传动轴(12)的两侧，并通过驱动盘-传动轴固定销(6)与驱动盘(5)上的驱动盘-传动轴定位孔(5-1)连接，为保证驱动盘(5)在工作时稳定性，在传动轴(12)设有传动轴均压槽(12-3)，传动轴均压槽(12-3)均匀开设在传动轴-驱动盘定位孔(12-2)的两侧。
  3. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述泵盖(10)上开设有O型密封圈安装槽(10-1)、油封安装孔(10-2)、螺钉安装孔(10-3)、泵盖-定子Ⅰ定位孔(10-4)、泵盖-传动轴安装孔(10-5)，O型密封圈安装槽(10-1)内安装O型密封圈(9)，油封安装孔(10-2)内安装油封(13)，泵盖(10)与泵体(1)的螺纹孔(1-8)通过螺钉 (7)连接，泵盖(10)设有泵盖-定子Ⅰ定位孔(10-4)，泵盖-定子Ⅰ定位孔(10-4)通过泵盖-定子Ⅰ定位销(8)与定子Ⅰ定位孔(16-1)连接，泵盖-传动轴安装孔(10-5)内部安装传动轴(10)。
  4. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述泵体(1)设有泵体吸液流道a(1-1)、泵体吸液流道b(1-2)、泵体排液流道a(1-3)、泵体排液流道b(1-4)、泵体吸液口(1-5)、泵体排液口(1-6)、泵体-定子Ⅱ定位孔(1-7)、泵体-泵盖螺纹孔(1-8)、泵体吸液口螺纹孔(1-9)、泵体排液口螺纹孔(1-10)、泵体吸液口通孔(1-11)、泵体排液口通孔(1-12)、泵体吸液口通孔螺纹孔(1-13)、泵体排液口通孔螺纹孔(1-14)、泵体-定子Ⅰ吸液口(1-15)、泵体-定子Ⅱ吸液口(1-16)、泵体-定子Ⅰ排液口(1-17)、泵体-定子Ⅱ排液口(1-18)；对吸液流道进行加工时，由泵体吸液口通孔(1-11)进行加工，并在泵体吸液口通孔(1-11)尾部开设泵体吸液口通孔螺纹孔(1-13)，用于安装螺钉对泵体吸液口通孔(1-11)进行密封；对排液流道进行加工时，由泵体排液口通孔(1-12)尾部进行加工，并在泵体排液口通孔(1-12)尾部设有泵体排液口通孔螺纹孔(1-14)，用于安装螺钉对泵体排液口通孔(1-12)进行密封；泵体吸液流道a(1-1)尾部设有泵体-定子Ⅰ吸液口(1-15)，泵体-定子Ⅰ吸液口(1-15)与定子Ⅰ(16)的定子Ⅰ吸液流道(16-8)连通，泵体吸液流道b(1-2)尾部设有泵体-定子Ⅱ吸液口(1-16)，泵体-定子Ⅱ吸液口(1-16)与定子Ⅱ(3)的定子Ⅰ吸液流道(3-7)连通，泵体排液流道a(1-3)尾部设有泵体-定子Ⅰ排液口(1-17)，泵体-定子Ⅰ排液口(1-17)与定子Ⅰ(16)的定子Ⅰ排液流道(16-9)连通，泵体排液流道b(1-4)尾部设有泵体-定子Ⅱ排液口(1-18)，泵体-定子Ⅱ排液口(1-18)与定子Ⅱ(3)中的定子Ⅰ排液流道(3-8)连通；泵体开设泵体-定子Ⅱ定位孔(1-7)，泵体-定子Ⅱ定位孔(1-7)与定子Ⅱ-泵体定位孔(3-1)通过泵体-定子Ⅱ定位销(17)连接；泵体(1)开设有泵体-泵盖螺纹孔(1-8)，泵体-泵盖螺纹孔(1-8)与泵盖(10)上的螺钉安装孔(10-3)通过螺钉(7)连接；泵体吸液口螺纹孔(1-9)与外部液压系统的吸液口连接，为矩形柱片泵提供液体；泵体排液口螺纹孔(1-10)与外部液压系统的排液口连接，将平面柱片泵内部液体排出泵体。
  5. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述驱动盘(5)共有两处，分别为驱动盘Ⅰ(5-2)和驱动盘Ⅱ(5-3)，其中设有两处驱动盘-传动轴定位孔(5-1)，驱动盘-传动轴定位孔(5-1)与传动轴(12)上的传动轴-驱动盘(12-2)通过驱动盘-传动轴固定销(6)连接。
  6. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述定子Ⅱ(3)，设 有定子Ⅱ-泵体定位孔(3-1)、定子Ⅱ进液流道(3-2)，定子Ⅱ排液流道(3-3)、定子Ⅱ进液卸荷槽(3-4)、定子Ⅱ排液卸荷槽(3-5)、轴承安装孔(3-6)、定子Ⅱ吸液口(3-7)、定子排液口(3-8)、定子Ⅰ-传动轴安装孔(3-9)、定子Ⅱ吸液流道出液口(3-10)、定子Ⅱ进液口卸荷槽(3-4)置于定子Ⅱ(3)压油面上，并与定子Ⅱ进液流道出液口(3-10)连通，定子Ⅱ排液卸荷槽(3-5)置于定子Ⅱ(3)吸油面上，并定子Ⅱ排液流道吸液口(3-11)连通，轴承安装孔(3-6)安装轴承Ⅱ(2)，定子Ⅰ-传动轴安装孔(3-9)与传动轴(12)连接，定子Ⅰ吸液口(9-7)与泵体-定子Ⅰ吸液口(1-15)连通，定子Ⅰ排液口(3-8)与泵体-定子Ⅰ排液口(1-17)连通。
  7. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述轴套(14)安装在泵体(1)内部，轴套(14)的轴套前端(14-1)与定子Ⅰ(16)中定子Ⅰ轴承安装孔(16-4)内部安装的轴承(15)外圈紧贴，用于支撑轴承(15)，轴套(14)的轴套后端(14-2)与油封(13)连接，用于支撑油封(13)。
  8. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述定子Ⅰ(16)，设有定子Ⅰ-泵盖定位孔(16-1)、定子Ⅰ吸液流道(16-2)、定子Ⅰ排液流道(16-3)、轴承安装孔(16-4)、定子Ⅰ-传动轴安装孔(16-5)、定子Ⅱ吸液口卸荷槽(16-6)、定子Ⅰ排液口卸荷槽(16-7)、定子Ⅰ吸液口(16-8)、定子Ⅰ排液口(16-9)、定子Ⅰ吸液流道出液口(16-10)、定子Ⅰ排液流道吸液口(16-11)，定子Ⅰ(16)在泵体(1)内部，与泵体(1)内表面紧贴，定子Ⅰ-泵盖定位孔(16-1)通过泵盖-定子Ⅰ定位销(8)与泵盖-定子Ⅰ定位孔(10-4)连接，定子Ⅰ吸液口卸载槽(16-6)置于定子Ⅰ(16)吸油面上，并与定子Ⅰ吸液流道出液口(16-10)连通，定子Ⅰ排液口卸载槽(16-7)置于定子Ⅰ(16)的压油面上，并与定子Ⅰ排液流道吸液口(16-11)连通，轴承安装孔(16-4)内安装有轴承(15)，定子Ⅰ-传动轴安装孔(16-5)与传动轴(12)通过轴承Ⅰ(15)连接；定子Ⅱ吸液口(16-8)与泵体-定子Ⅱ吸液口(1-16)连通，定子Ⅱ排液口(16-9)与泵体-定子Ⅱ排液口(1-18)连通。
  9. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述矩形柱片(4)共设多片，分别安装于驱动盘Ⅰ(5-2)和驱动盘Ⅱ(5-3)之间，且各矩形柱片(4)相互贴合。
  10. 根据权利要求1所述的一种无配流平面柱片泵，其特征在于：所述定子Ⅰ(16)和定子Ⅱ(3)曲面共有四部分构成；分别为两段螺旋过渡面和两段圆弧面；定子Ⅰ(16)和定子Ⅱ(3)与两柱片曲面之间形成密封腔M、N，密封腔M、N内充满液体，具有密封、润滑的作用。
PCT/CN2019/110924 2019-09-18 2019-10-14 一种无配流平面柱片泵 WO2021051461A1 (zh)

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