WO2024008137A1 - Dispositif de pompe et pompe à piston - Google Patents

Dispositif de pompe et pompe à piston Download PDF

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Publication number
WO2024008137A1
WO2024008137A1 PCT/CN2023/106031 CN2023106031W WO2024008137A1 WO 2024008137 A1 WO2024008137 A1 WO 2024008137A1 CN 2023106031 W CN2023106031 W CN 2023106031W WO 2024008137 A1 WO2024008137 A1 WO 2024008137A1
Authority
WO
WIPO (PCT)
Prior art keywords
reciprocating
power shaft
guide
plunger
pump
Prior art date
Application number
PCT/CN2023/106031
Other languages
English (en)
Chinese (zh)
Inventor
傅珂珂
李进
Original Assignee
浙江千机智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江千机智能科技有限公司 filed Critical 浙江千机智能科技有限公司
Publication of WO2024008137A1 publication Critical patent/WO2024008137A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the present invention relates to the technical field of pump structures, and in particular to pump equipment and plunger pumps.
  • a pump is a machine that transports fluid or pressurizes fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid.
  • the pump is mainly used to transport liquids such as water, oil, acid and alkali liquids, emulsions, suspoemulsions and liquid metals. It can also transport liquid, gas mixtures and liquids containing suspended solids.
  • the structure of traditional pumps is complex and the assembly process is complicated, which is not conducive to miniaturization.
  • the plunger pump includes a reciprocating component and a pump component.
  • the reciprocating component includes a power source, a power shaft and a reciprocating part.
  • the reciprocating part is transmission-cooperated with the power shaft so that the power shaft
  • the reciprocating part can be driven to move back and forth along the axis direction of the power shaft;
  • the pump assembly includes a pump body and a plunger, a volume chamber is formed in the pump body, and the outer wall of the pump body is formed with the A first channel and a second channel are connected to the volume chamber.
  • An installation cavity connected to the volume chamber is also formed in the pump body.
  • the plunger is connected to the reciprocating part, and the plunger passes through the volume.
  • the power shaft and the reciprocating part are located in the installation cavity, and the power source is used to drive the power shaft to rotate to drive the plunger in the volume cavity through the reciprocating part.
  • the fluid moves reciprocally in the first channel so that the fluid can be sucked into the volume chamber from the first channel and discharged from the second channel.
  • a guide structure is provided in the installation cavity, the reciprocating part is arranged in the radial direction of the power shaft, the reciprocating part guides and cooperates with the guide structure, and the guide structure
  • the guiding direction is consistent with the axis direction of the power shaft.
  • a guide groove is formed on the outer wall of the reciprocating part, the guide structure is a guide rod, the length direction of the guide rod is the axial direction of the power shaft, and the guide rod passes through In the guide groove, and able to slide in the guide groove; or
  • the guide structure is a guide groove formed on the inner wall of the installation cavity.
  • the length direction of the guide groove is the axis direction of the power shaft.
  • the outer wall of the reciprocating part is formed with a guide protrusion.
  • the guide protrusion is formed on the inner wall of the installation cavity. The protrusion passes through the guide groove and can slide in the guide groove.
  • the power shaft is provided with a reciprocating guide rail
  • the reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft, and the wave peaks and troughs of the curved guide rail are along the direction of the power shaft.
  • the axes are arranged at intervals;
  • the reciprocating part includes a moving body and a reciprocating body, the reciprocating body is sleeved on the power shaft, the moving body is located between the reciprocating body and the power shaft, and the moving body
  • the guide is provided on the reciprocating guide rail and is limited to the reciprocating body.
  • the movable body can move on the reciprocating guide rail.
  • the plunger is connected to the reciprocating body.
  • the reciprocating guide rail is a reciprocating groove
  • the reciprocating groove is a closed curved groove surrounding the axis of the power shaft
  • the moving body is penetrated in the reciprocating groove and can move in the reciprocating groove.
  • the oil guide groove is a closed curved groove surrounding the axis of the power shaft.
  • the reciprocating part further includes a matching sleeve.
  • the matching sleeve is sleeved on the moving body and installed on the reciprocating body. There is a gap between the moving body and the inner wall of the matching sleeve. There are a plurality of rolling balls, and the moving body can roll relative to the matching sleeve.
  • the power shaft is also provided with a balance guide rail that is spaced opposite to the reciprocating guide rail along the axis of the power shaft, and the balance guide rail is a closed curved guide rail surrounding the axis of the power shaft, And the wave crests and wave troughs of the balance guide rail are spaced apart along the axis of the power shaft; and the wave crests of the balance guide rail are opposite to the wave troughs of the reciprocating guide rail along the axial direction, and the wave troughs of the balance guide rail are opposite to the wave troughs of the balance guide rail along the axial direction.
  • the wave crests of the reciprocating guide rail are opposite to each other; a balance body is provided on the balance guide rail, and the balance body and the moving body are arranged oppositely along the axis of the power shaft. When the power shaft rotates, the balance body and the Moving bodies move toward or away from each other.
  • the pump body includes a pump body and a back cover.
  • One end of the pump body is formed with a volume chamber, the first channel and the second channel.
  • the other end of the pump body is formed with a volume chamber.
  • the back cover is installed on the other end of the pump body, and a rotation hole is provided on the back cover.
  • One end of the power shaft is connected with a connecting rod, and the connecting rod is passed through
  • the rotation hole is connected to the power source, and a rolling bearing is provided between the connecting rod and the inner wall of the rotation hole; a rolling bearing is provided between the inner wall of the back cover facing the installation cavity and the power shaft. Plane bearings.
  • a guide sleeve and a sealing sleeve are provided on the inner wall of the volume chamber, and the sealing sleeve is located on a side of the guide sleeve facing away from the reciprocating member, and the plunger faces away from the reciprocating member.
  • the front end of the reciprocating member passes through the guide sleeve and the sealing sleeve, and the front end of the plunger does not pass through the sealing sleeve during the reciprocating stroke.
  • a pumping device includes the plunger pump as described above.
  • the above-mentioned pump equipment and plunger pump have a volume cavity and an installation cavity formed in the pump body.
  • the plunger is connected to the reciprocating part of the reciprocating component, and the reciprocating part is driven and matched with the power shaft to move the plunger Assembling can be achieved by inserting one side of the installation cavity into the volume cavity so that the reciprocating part and the power shaft are located in the installation cavity.
  • the power source drives the power shaft to drive the reciprocating part to reciprocate along the axis of the power shaft to drive the plunger to reciprocate in the volume chamber, so that the fluid can be sucked into the volume chamber from the first channel and flow from the third channel to the volume chamber.
  • Two channel discharge purpose By arranging the reciprocating parts and the power shaft in the pump body, the above-mentioned plunger pump not only simplifies the components and assembly steps, but also facilitates the miniaturization design of the plunger pump.
  • Figure 1 is a schematic structural diagram of a plunger pump in an embodiment
  • Figure 2 is a cross-sectional view of the plunger pump shown in Figure 1;
  • Figure 3 is a partially exploded view of the plunger pump shown in Figure 2;
  • Figure 4 is a partial cross-sectional view of the pump body in Figure 3;
  • Figure 5 is an exploded schematic diagram of the back cover and installation cover in Figure 3;
  • Figure 6 is an exploded schematic diagram of the plunger pump shown in Figure 2, omitting the pump body and end cover;
  • FIG. 7 is a cross-sectional view of the matching sleeve in FIG. 6 .
  • Piston pump 100. Reciprocating component; 110. Power source; 120. Power shaft; 122. Connecting rod; 124. Reciprocating groove; 126. Oil guide groove; 130. Reciprocating parts; 131. Guide groove; 132. Movement Body; 133, reciprocating body; 134, matching sleeve; 135, ball; 136, reciprocating hole; 137, mounting hole; 138, mounting plate; 140. Reduction gear set; 200. Pump assembly; 210. Pump body; 211. Volume chamber; 212. First channel; 213. Second channel; 214. Installation cavity; 215. Guide sleeve; 216. Sealing sleeve; 217.
  • Limit sleeve 218, first joint; 219, second joint; 220, plunger; 230, pump body; 240, end cover; 241, first connection groove; 242, second connection groove; 250, back cover; 252.
  • the plunger pump 10 in one embodiment of the present invention can at least achieve the purpose of improving assembly efficiency and is conducive to miniaturization design.
  • the plunger pump 10 includes a reciprocating assembly 100 and a pump assembly 200.
  • the reciprocating assembly 100 includes a power source 110, a power shaft 120 and a reciprocating part 130.
  • the reciprocating part 130 is in transmission cooperation with the power shaft 120, so that the power shaft 120 can drive the reciprocating part.
  • the component 130 moves reciprocally along the axis direction of the power shaft 120;
  • the pump assembly 200 includes a pump body 210 and a plunger 220.
  • a volume chamber 211 is formed in the pump body 210, and a third cavity connected to the volume chamber 211 is formed on the outer wall of the pump body 210.
  • a channel 212 and a second channel 213, the pump body 210 is also formed with an installation cavity 214 connected to the volume chamber 211, the plunger 220 is connected to the reciprocating member 130, and the plunger 220 is penetrated in the volume cavity 211, so that The power shaft 120 and the reciprocating part 130 are located in the installation cavity 214.
  • the power source 110 is used to drive the power shaft 120 to rotate, so as to drive the plunger 220 to reciprocate in the volume chamber 211 through the reciprocating part 130, so that the fluid can flow from the first channel 212 It is sucked into the volume chamber 211 and discharged from the second channel 213 .
  • the plunger 220 is connected to the reciprocating part 130, and the reciprocating part 130 is driven and matched with the power shaft 120, and the plunger 220 is moved from the installation cavity 214.
  • One side is inserted into the volume cavity 211, so that the reciprocating part 130 and the power shaft 120 are located in the installation cavity 214, and assembly can be realized.
  • the power source 110 drives the power shaft 120 to drive the reciprocating member 130 to reciprocate along the axis direction of the power shaft 120 to drive the plunger 220 to reciprocate in the volume chamber 211, so that the fluid can be sucked into the volume chamber 211 from the first channel 212, and flow from the first channel 212 to the volume chamber 211.
  • the second channel 213 discharges the destination.
  • the above-mentioned plunger pump 10 disposes the reciprocating member 130 and the power shaft 120 in the pump body 210, which not only simplifies the components and assembly steps, but also facilitates the miniaturization design of the plunger pump 10.
  • one-way valves are provided in both the first channel 212 and the second channel 213 to ensure one-way water inlet and outlet of the first channel 212 and the second channel 213 and to ensure stable flow of fluid.
  • a guide sleeve 215 is provided on the inner wall of the volume chamber 211 .
  • the plunger 220 is inserted into the guide sleeve 215 and can move back and forth in the guide sleeve 215 .
  • the use of the guide sleeve 215 can avoid direct friction between the plunger 220 and the inner wall of the volume chamber 211, thereby ensuring the service life of the pump body 210.
  • a sealing sleeve 216 is also provided on the inner wall of the volume chamber 211, and the sealing sleeve 216 is located on the side of the guide sleeve 215 facing away from the reciprocating member 130, and the plunger 220 passes through the guide sleeve 215 facing away from the front end of the reciprocating member 130. And can further pass through the sealing sleeve 216, and the front end of the plunger 220 will not pass through the sealing sleeve 216 during the reciprocating stroke.
  • the use of the sealing sleeve 216 can ensure that during the process of pumping the fluid, the fluid will not pass through the space between the plunger 220 and the inner wall of the volume chamber 211, thereby ensuring the sealing property of the fluid during the process of pumping.
  • a sealing ring is provided between the guide sleeve 215 and the plunger 220 .
  • a limiting sleeve 217 is formed on the side of the sealing sleeve 216 facing away from the guide sleeve 215.
  • the limiting sleeve 217 is fixed on the inner wall of the volume chamber 211.
  • the limiting sleeve 217 is used to limit the sealing sleeve 216. position to prevent the sealing sleeve 216 from following the plunger 220 from reciprocating and affecting the sealing performance.
  • the limiting sleeve 217 can also be a limiting protrusion formed on the inner wall of the volume chamber 211 .
  • the plunger 220 includes a connecting rod and a piston body.
  • the piston body is connected to the reciprocating member 130 through the connecting rod.
  • the piston body is located in the volume chamber 211 and can be moved therein.
  • the volume chamber 211 moves back and forth, and the piston body divides the volume chamber 211 into two compression spaces; there are two first channels 212 and two second channels 213, and the two first channels 213
  • the passages 212 are respectively connected with the two compression spaces, and the two second passages 213 are respectively connected with the two compression spaces.
  • the connecting rod drives the piston body to move back and forth, it can cyclically change the size of the two compression spaces. If the piston body moves toward a compression space and compresses, the fluid in the compression space can be pumped out through the second channel 213 connected to the compression space. The volume of another compression space increases, causing fluid to be pumped into the compression space through the first channel 212 connected to the compression space, and the piston body further moves to compress the compression space, causing the fluid to flow through the second channel 212 connected to the compression space. 213 is pumped out and circulates like this to achieve the effect of a double-action pump.
  • the plunger 220 is disposed in the volume chamber 211, and a compression space is formed only on the side of the plunger 220 facing away from the reciprocating member 130. There is only one compression space, the first channel 212 and the second channel. 213 is connected with the compression space to achieve the effect of a single-action pump.
  • the pump body 210 includes a pump body 230 and an end cover 240 .
  • a volume chamber 211 , a first channel 212 and a second channel 213 are formed at one end of the pump body 210 .
  • An installation cavity 214 is formed at one end, and an end cover 240 is provided on one end of the pump body 210.
  • the end cover 240 faces upward and has a first connection groove 241 and a second connection groove 242 on one side of the pump body 230, through which the first passage 212 passes.
  • the first connecting groove 241 communicates with the volume chamber 211
  • the second channel 213 communicates with the volume chamber 211 through the second connecting groove 242.
  • first channel 212 and the second channel 213 are respectively located on opposite sides of the volume chamber 211 .
  • a first joint 218 is provided at the first channel 212
  • a second joint 219 is provided at the second channel 213
  • the first joint 218 and the second joint 219 are respectively located on opposite sides of the pump body 210.
  • the first connector 218 and the second connector 219 can also be disposed at other positions of the pump body 210 according to usage conditions.
  • one end of the pump body 230 is formed with a volume chamber 211, and the other end is formed with an installation chamber 214.
  • the end cap 240 is covered on one end of the pump body 230, and the end cap 240 faces up one side of the pump body 230.
  • a connecting groove is provided, in which one of the first channel 212 and the second channel 213 is formed on the end cover 240, and the other is formed on the pump body 230.
  • the connecting groove is used to connect the volume chamber 211 and the second channel 213 formed on the end cover 240. channel on the pump body 230.
  • both the first channel 212 and the second channel 213 can be opened on the end cover 240 .
  • the pump body 210 includes a pump body 230 and a back cover 250.
  • One end of the pump body 230 is formed with a volume chamber 211, a first channel 212 and a second channel 213.
  • the pump body 230 An installation cavity 214 is formed at the other end of the pump body 230.
  • the back cover 250 is covered on the other end of the pump body 230, and a rotation hole 252 is provided on the back cover 250.
  • One end of the power shaft 120 is connected to a connecting rod 122, and the connecting rod 122 It is inserted into the rotation hole 252 and connected with the power source 110 .
  • the power shaft 120 and the reciprocating part 130 are conveniently packaged in the installation cavity 214 through the back cover 250 .
  • a connection hole is provided at one end of the power shaft 120 , and one end of the connecting rod 122 is inserted into the connection hole and connected with the power shaft 120 . Further, one end of the connecting rod 122 is fixed in the connecting hole through a bolt.
  • a rolling bearing 260 is provided between the connecting rod 122 and the inner wall of the rotation hole 252 .
  • the friction between the connecting rod 122 and the inner wall of the rotation hole 252 is reduced through the rolling bearing 260 to ensure that the connecting rod 122 drives The stability of the rotation of the power shaft 120.
  • a plane bearing 270 is provided between the inner wall of the back cover 250 facing the installation cavity 214 and the power shaft 120 .
  • the diameter of the power shaft 120 is larger than the diameter of the connecting rod 122 , which facilitates the end surface of the power shaft 120 to abut against the rear cover 250 through the plane bearing 270 .
  • the plane bearing 270 can effectively ensure the rotation of the power shaft 120 relative to the back cover 250 and ensure rotation stability.
  • the plane bearing 270 is a thrust ball bearing or a thrust needle roller bearing.
  • the power shaft 120 can also abut against the back cover 250 through other structures that can ensure its rotational stability relative to the back cover 250 .
  • the power source 110 is connected to the power shaft 120 through a reduction gear set 140 .
  • a mounting cover 280 is provided on the side of the back cover 250 facing away from the pump body 230 .
  • the mounting cover 280 is connected to the back cover 250 so that the reduction gear set 140 is located between the back cover 250 and the mounting cover 280 .
  • the power source 110 is a motor or motor. In other embodiments, the power source 110 may also be other power components capable of driving the power shaft 120 to rotate.
  • a guide structure is provided in the installation cavity 214, and the reciprocating part 130 is provided in the radial direction of the power shaft 120.
  • the reciprocating part 130 cooperates with the guide structure, and the guide direction of the guide structure is It is consistent with the axis direction of the power shaft 120 .
  • the reciprocating part 130 is sleeved on the power shaft 120 , and the guide structure cooperates with the side of the reciprocating part 130 facing away from the power shaft 120 .
  • a guide groove 131 is formed on the outer wall of the reciprocating member 130.
  • the guide structure is a guide rod 290.
  • the length direction of the guide rod 290 is the axis direction of the power shaft 120.
  • the guide rod 290 is inserted into the guide groove 131. , and can slide in the guide groove 131 .
  • the guide rod 290 is partially embedded in the reciprocating member 130 using the guide groove 131, thereby further avoiding an increase in the size of the pump body 210.
  • the guide groove 131 is a semi-cylindrical groove.
  • the guide rod 290 is a cylindrical rod.
  • the guide rod 290 is integrally formed on the inner wall of the installation cavity 214 .
  • the guide rod 290 is a semi-cylindrical guide rail formed on the inner wall of the installation cavity 214 .
  • the semi-cylindrical guide rail passes through the guide groove 131 .
  • the guide structure is a guide groove formed on the inner wall of the installation cavity 214, the length direction of the guide groove is the axis direction of the power shaft 120, and a guide protrusion is formed on the outer wall of the reciprocating member 130, so The guide protrusion passes through the guide groove 131 and can slide in the guide groove. The guide protrusion slides in the guide groove to guide the reciprocating movement of the reciprocating part 130 .
  • each guide structure is spaced around the axis of the power shaft 120 .
  • the guide structure is disposed on the same side as the first joint 218 or the second joint 219 on the pump body 210 .
  • the reciprocating member 130 is sleeved on the power shaft 120 to ensure the stability of the movement of the reciprocating member 130 driven by the power source 120 .
  • the power shaft 120 is provided with a reciprocating guide rail.
  • the reciprocating guide rail is a closed curved guide rail surrounding the axis of the power shaft 120 , and the wave peaks and troughs of the curved guide rail are spaced along the axis of the power shaft 120 ;
  • the reciprocating member 130 includes a moving body 132 and the reciprocating body 133, the reciprocating body 133 is sleeved on the power shaft 120, the moving body 132 is located between the reciprocating body 133 and the power shaft 120, and the moving body 132 is guided and arranged on the reciprocating guide rail and is limited to the reciprocating body 133 , the moving body 132 can move on the reciprocating guide rail, and the plunger 220 is connected to the reciprocating body 133 .
  • the reciprocating guide rail is a reciprocating groove 124.
  • the reciprocating groove 124 is a closed curved groove surrounding the axis of the power shaft 120, and the wave peaks and troughs of the curved groove are spaced apart along the axis of the power shaft 120; the moving body 132 Penetrated in the reciprocating groove 124 and limited on the reciprocating body 133 , the moving body 132 can move in the reciprocating groove 124 .
  • the moving body 132 When the power shaft 120 rotates, the moving body 132 can move in the reciprocating groove 124, so that the moving body 132 can move between the wave peaks and the wave troughs of the curved groove, so as to realize the reciprocating movement of the moving body 132 along the axis direction of the power shaft 120.
  • the reciprocating body 133 drives the plunger 220 to reciprocate along the axis direction of the power shaft 120 .
  • the rotational motion of the power shaft 120 is converted into the linear motion of the reciprocating body 133 along the axis of the power shaft 120. There will be no yaw intersection problem of the crank structure or the eccentric drive structure, and the work stability is better.
  • the reciprocating guide rail is a guide protrusion
  • the guide protrusion is a closed strip-shaped curved protrusion surrounding the axis of the power shaft 120, and the peaks and troughs of the curved protrusion are spaced apart along the axis of the power shaft 120; moving The body 132 is disposed on the guide protrusion and can move along the length direction on the guide protrusion.
  • each reciprocating guide rail is spaced along the axis of the power shaft 120 , and at least one moving body 132 is provided on each reciprocating guide rail.
  • the power shaft 120 is also provided with a balance guide rail that is arranged opposite to the reciprocating guide rail along the axis of the power shaft 120.
  • the balance guide rail is a closed curved guide rail surrounding the axis of the power shaft 120, and the wave crest of the curved guide rail is The wave troughs are arranged at intervals along the axis of the power shaft 120; and the wave crests of the balance guide rail are opposite to the wave troughs of the reciprocating guide rail along the axial direction, and the wave troughs of the balance guide rail are opposite to the wave crests of the reciprocating guide rail along the axial direction.
  • a balance body is provided on the balance guide rail.
  • the balance body and the moving body 132 are arranged oppositely along the axis of the power shaft 120. When the power shaft 120 rotates, the balance body and the moving body 132 move toward or away from each other. By arranging the balance guide rail and the balance body, the movement process of the balance body and the moving body 132 can be double. Offset the acceleration and reduce the vibration caused by acceleration.
  • the balance guide rail has the same structure as the reciprocating guide rail, and the balance guide rail is symmetrically arranged along the circumference of the power shaft relative to the reciprocating guide rail.
  • the balance body and the moving body 132 have the same structure.
  • the reciprocating body 133 is provided with a reciprocating hole 136 , and the power shaft 120 is inserted into the reciprocating hole 136 , so that the moving body 132 is located between the inner wall of the reciprocating body 133 and the power shaft 120 .
  • the plunger 220 and the reciprocating body 133 are connected through screws from one side of the reciprocating hole 136 .
  • an assembly hole is opened on the bottom wall of the reciprocating hole 136 opposite to the power shaft 120. The plunger 220 is aligned with the assembly hole, and the connecting screw passes through the assembly hole to connect the plunger 220 and the reciprocating body 133.
  • the number of moving bodies 132 is at least two. Each moving body 132 is spaced around the axis of the power shaft 120 , and the power shaft 120 can drive each moving body 132 to move in the same direction. Specifically, there are two moving bodies 132 , and the two moving bodies 132 are symmetrically arranged around the axis of the power shaft 120 . When the power shaft 120 rotates, it can drive each moving body 132 to move in the same direction, and each moving body 132 is limited to the reciprocating body 133 . The stability of the transmission can be further improved by at least two moving bodies 132 . In other embodiments, the number of moving bodies 132 may also be other numbers. Each moving body 132 is evenly arranged around the axis of the power shaft 120 to ensure the stability of the transmission force of the reciprocating body 133.
  • the moving body 132 is a sphere, and the moving body 132 can roll in the reciprocating groove 124 .
  • the friction force of the moving body 132 when moving can be reduced.
  • an oil guide groove 126 is formed on the inner wall of the reciprocating groove 124 .
  • Lubricating oil can be placed in the oil guide groove 126, and when the moving body 132 moves in the reciprocating groove 124, the lubricating oil can be used to further reduce frictional resistance and ensure smooth transmission.
  • the oil guide groove 126 is a closed curved groove surrounding the axis of the power shaft 120 . Since the oil guide groove 126 is disposed on the inner wall of the reciprocating groove 124, the groove shape of the oil guide groove 126 is consistent with the groove shape of the reciprocating groove 124, ensuring that there is lubricating oil wherever the moving body 132 moves to the reciprocating groove 124. , This further ensures reduced frictional resistance. In other embodiments, there may be at least two oil guide grooves 126 , and each oil guide groove 126 is spaced apart around the axis of the power shaft 120 .
  • the reciprocating member 130 further includes a matching sleeve 134 .
  • the matching sleeve 134 is sleeved on the moving body 132 and installed on the reciprocating body 133 . Specifically, since the moving body 132 is a sphere, the moving body 132 can roll relative to the matching sleeve 134 .
  • the matching sleeve 134 prevents the moving body 132 from directly rolling and friction with the reciprocating body 133 .
  • a plurality of rolling balls 135 are provided between the moving body 132 and the inner wall of the mating sleeve 134 .
  • the plurality of balls 135 are in contact with the side of the moving body 132 facing away from the power shaft 120 .
  • the plurality of balls 135 are used to further reduce the rolling friction, further improve the rolling smoothness of the moving body 132, and ensure the stability of the transmission.
  • the inner wall of the reciprocating body 133 is provided with a mounting hole 137 connected with the reciprocating hole 136 , and the matching sleeve 134 is installed in the mounting hole 137 .
  • the mounting hole 137 penetrates the outer wall of the reciprocating body 133, and a mounting plate 138 is provided at one end of the matching sleeve 134.
  • the matching sleeve 134 is inserted into the mounting hole 137, so that the mounting plate 138 contacts the reciprocating body 133. on the outer wall of the body 133 and installed on the reciprocating member 133.
  • the moving body 132 can pass through the mounting hole 137 .
  • the mounting plate 138 and the matching sleeve 134 are integrally formed.
  • the position of the matching sleeve 134 may correspond to the positions of the first connector 218 and the second connector 219 on the outer wall of the pump body 210 .
  • the size of the matching sleeve 134 in the direction in which the first joint 218 or the second joint 219 is disposed is used to avoid increasing the size of the pump body 210 in other directions due to the disposing of the matching sleeve 134 .
  • the plunger pump 10 further includes a protective shell (not shown).
  • the reciprocating component 100 is disposed in the protective shell, and the reciprocating component 100 is protected by the protective shell. Specifically, a moist layer is formed inside the protective shell.
  • the lubricating oil chamber, the power shaft 120 and the reciprocating part 130 are all located in the lubricating oil chamber.
  • the guide rod 290 is also located in the lubricating oil chamber.
  • the lubricating oil can also be It can further enter the oil guide groove 126 and play a lubricating role in the movement of the moving body 132, which not only improves the life of each component, but also facilitates increasing the reciprocating speed.
  • a pump device includes the plunger pump 10 of any of the above embodiments.
  • the pump equipment further includes a spray joint, a water inlet channel and a water outlet channel are formed in the spray joint, and the spray joint is installed on the pump body 210 so that the first channel 212 is connected with the inlet channel.
  • the water channel is connected, and the second channel 213 is connected with the water outlet channel.
  • the pump device is a cleaning machine.
  • the plunger pump 10 in this embodiment is a double-acting pump.
  • the pump equipment is a cleaning machine.
  • the plunger pump in this embodiment is a single-acting pump.
  • the pump device may also be a sprayer.
  • it can be a high-pressure sprayer, a pesticide sprayer, a high-pressure sprayer or a high-pressure cleaning machine.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In the present invention, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified limitations. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • the first characteristic is in the second
  • the features "below”, “below” and “under” may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Dispositif de pompe et pompe à piston. La pompe à piston comprend un ensemble va-et-vient (100) et un ensemble pompe (200) ; l'ensemble va-et-vient (100) comprend une source d'alimentation (110), un arbre de puissance (120) et un élément de va-et-vient (130) ; et l'ensemble pompe (200) comprend un corps de pompe (210) et un piston (220). Le corps de pompe (210) est pourvu d'une cavité volumétrique (211) et d'une cavité de montage (214) ; pendant l'assemblage, le piston (220) est relié à l'élément de va-et-vient (130), l'élément de va-et-vient (130) coopère avec l'arbre de puissance (120), et le piston (220) passe à travers la cavité volumétrique (211) depuis un côté de la cavité de montage (214), de telle sorte que l'élément va-et-vient (130) et l'arbre de puissance (120) sont assemblés dans la cavité de montage (214). La source d'alimentation (110) amène l'arbre de puissance (120) à entraîner l'élément de va-et-vient (130) à effectuer un déplacement en va-et-vient dans la direction axiale, qui amène le piston (220) à effectuer un déplacement en va-et-vient, et un fluide est aspiré dans la cavité volumétrique à partir d'un premier canal (212) et est évacué d'un second canal (213). Dans la présente pompe à piston, l'élément de va-et-vient et l'arbre de puissance sont tous deux agencés dans le corps de pompe, des composants et des étapes d'assemblage sont simplifiés, et la miniaturisation de la pompe à piston est facilitée.
PCT/CN2023/106031 2022-07-06 2023-07-06 Dispositif de pompe et pompe à piston WO2024008137A1 (fr)

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CN202210789463.5 2022-07-06

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115095516A (zh) * 2022-07-06 2022-09-23 浙江千机智能科技有限公司 用泵设备及柱塞泵
CN218760303U (zh) * 2022-11-02 2023-03-28 浙江千机智能科技有限公司 动力设备
CN218760288U (zh) * 2022-11-02 2023-03-28 浙江千机智能科技有限公司 往复动力组件及泵机构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB595458A (en) * 1944-12-08 1947-12-05 Uni Gun Lubricating Equipment Improvements in or relating to reciprocating pumps
US20050191190A1 (en) * 2004-02-27 2005-09-01 Hypro Corporation Double action simplex plunger/diaphragm pump
CN105756877A (zh) * 2016-04-13 2016-07-13 武汉钜威天数字化机械制造有限公司 对称斜弯主轴结构轴向柱塞液压泵
CN113426748A (zh) * 2021-07-19 2021-09-24 永康市光逸科技有限公司 清洗机往复结构及手持式清洗机
CN215918369U (zh) * 2021-07-19 2022-03-01 永康市光逸科技有限公司 清洗机往复结构及手持式清洗机
WO2022095071A1 (fr) * 2020-11-09 2022-05-12 深圳市大疆创新科技有限公司 Pompe à piston, véhicule aérien sans pilote de protection de plantes et dispositif de pulvérisation
CN115095516A (zh) * 2022-07-06 2022-09-23 浙江千机智能科技有限公司 用泵设备及柱塞泵
CN218207028U (zh) * 2022-07-06 2023-01-03 浙江千机智能科技有限公司 用泵设备及柱塞泵

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB595458A (en) * 1944-12-08 1947-12-05 Uni Gun Lubricating Equipment Improvements in or relating to reciprocating pumps
US20050191190A1 (en) * 2004-02-27 2005-09-01 Hypro Corporation Double action simplex plunger/diaphragm pump
CN105756877A (zh) * 2016-04-13 2016-07-13 武汉钜威天数字化机械制造有限公司 对称斜弯主轴结构轴向柱塞液压泵
WO2022095071A1 (fr) * 2020-11-09 2022-05-12 深圳市大疆创新科技有限公司 Pompe à piston, véhicule aérien sans pilote de protection de plantes et dispositif de pulvérisation
CN113426748A (zh) * 2021-07-19 2021-09-24 永康市光逸科技有限公司 清洗机往复结构及手持式清洗机
CN215918369U (zh) * 2021-07-19 2022-03-01 永康市光逸科技有限公司 清洗机往复结构及手持式清洗机
CN115095516A (zh) * 2022-07-06 2022-09-23 浙江千机智能科技有限公司 用泵设备及柱塞泵
CN218207028U (zh) * 2022-07-06 2023-01-03 浙江千机智能科技有限公司 用泵设备及柱塞泵

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