WO2022016911A1 - 一种柱塞泵及泵站 - Google Patents

一种柱塞泵及泵站 Download PDF

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Publication number
WO2022016911A1
WO2022016911A1 PCT/CN2021/086360 CN2021086360W WO2022016911A1 WO 2022016911 A1 WO2022016911 A1 WO 2022016911A1 CN 2021086360 W CN2021086360 W CN 2021086360W WO 2022016911 A1 WO2022016911 A1 WO 2022016911A1
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WO
WIPO (PCT)
Prior art keywords
assembly
valve core
suction valve
pump
valve seat
Prior art date
Application number
PCT/CN2021/086360
Other languages
English (en)
French (fr)
Inventor
李然
韦文术
叶健
刘昊
吴梦雨
陈荣明
王大龙
陈敬斌
Original Assignee
北京天地玛珂电液控制系统有限公司
北京煤科天玛自动化科技有限公司
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 北京天地玛珂电液控制系统有限公司, 北京煤科天玛自动化科技有限公司 filed Critical 北京天地玛珂电液控制系统有限公司
Priority to AU2021311976A priority Critical patent/AU2021311976A1/en
Priority to US18/006,332 priority patent/US20230313792A1/en
Priority to EP21846283.6A priority patent/EP4187093A1/en
Publication of WO2022016911A1 publication Critical patent/WO2022016911A1/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1087—Valve seats
    • 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
    • F04B51/00—Testing machines, pumps, or pumping installations
    • 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
    • F04B53/08—Cooling; Heating; Preventing freezing
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1022—Disc valves having means for guiding the closure member axially
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
    • 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
    • F04B53/18—Lubricating
    • 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
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous

Definitions

  • the invention relates to an emulsion pump station, in particular to a five-piston emulsion pump and a pump station.
  • the emulsion pump station is an essential and important equipment for the fully mechanized coal mining face, providing hydraulic power for the hydraulic support of the working face, and is the heart of the hydraulic system of the entire working face.
  • the reliability of the emulsion pump station put forward higher requirements.
  • the emulsion pump usually adopts the five-piston structure or seven-piston structure of the large-flow emulsion pump, which has the advantages of high transmission efficiency, stable support, small axial force component of the gear pair, and compact structure, and has been widely used.
  • the suction valve core assembly and the discharge valve assembly in the pump head body of the plunger pump are assembled from both sides of the pump head body, respectively.
  • the operability is poor, the maintenance time is long, and the maintenance cost is high;
  • the existing plunger pump it is usually designed at the lower part of the discharge valve core
  • the return spring mounting seat of the suction valve core increases the quality of the discharge valve core, and the inertial force is large.
  • the pump head body and the suction box of the existing plunger pump are two independent component structures.
  • a longer mounting hole needs to be formed on the suction box, and the two are disassembled and assembled through a longer screw, and the manufacturing and assembly costs are high.
  • the current monitoring techniques for pumping stations are mainly the monitoring of gear oil in the crankcase (oil temperature monitoring, oil pressure monitoring, oil level monitoring), water pressure monitoring at the hydraulic end and motor temperature monitoring.
  • Some patents also involve Vibration and oil quality monitoring of mechanical equipment.
  • the sensors are generally installed outside the pump station. At present, there is no monitoring of the built-in precision core components such as the suction and discharge valve cores of the hydraulic end of the pump station.
  • the first technical problem to be solved by the present invention is the problem that the unreasonable structure of the existing plunger pump causes the disassembly and assembly of the pump head to be time-consuming and laborious.
  • the present invention provides the following technical solutions:
  • a plunger pump comprising: a crankcase assembly for connecting with a main drive motor to transmit power; a pump head assembly for pumping an emulsion; and connecting to the crankcase assembly
  • a hydraulic conversion assembly with the pump head assembly the hydraulic conversion assembly is used to convert the mechanical power of the crankcase into the hydraulic change of the pump head assembly
  • the pump head assembly includes: a pump head body, the pump head body has a cavity; a suction valve assembly, a discharge valve assembly and a spacer for isolating the suction valve assembly and the discharge valve assembly located in the cavity; wherein, The cavity includes: a suction valve seat mounting portion for mounting the suction valve assembly, a spacer mounting portion for mounting the spacer, and a drain valve seat for mounting the drain valve assembly an installation part and a suction cavity located on the lower side of the suction valve seat installation part, the liquid suction cavity is communicated with the emulsion supply device through a pipeline; between the discharge valve seat installation part and the spacer sleeve installation part Through the step surface transition
  • the suction valve assembly includes: a suction valve seat, the suction valve seat is provided with a first mating surface; a suction valve core, the suction valve core is slidably connected to the suction valve On the liquid suction valve seat, the liquid suction valve core is provided with a second matching surface matching with the first matching surface; wherein, the first matching surface and the second matching surface are formed into conical surfaces.
  • the suction valve assembly further includes a return spring mounting seat located on the lower side of the suction valve seat, the return spring mounting seat is sleeved on the valve core; A first return spring between the suction valve seat and the return spring mounting seat.
  • an outer casing the outer wall of the outer casing is sealingly connected to the mounting portion of the suction valve seat, and the end of the inner wall of the outer casing is provided with the first mating surface; the inner casing , the inner sleeve body is connected with the outer sleeve body through a transition arm; the inner wall of the inner sleeve body is slidably connected with the liquid suction valve core.
  • the liquid suction valve core includes: a valve core head, the valve core head is provided with the second mating surface; a valve core rod, the valve core rod is slidably connected to the liquid suction Inside the inner sleeve of the valve seat.
  • the bottom of the suction valve seat is provided with a pressure sensor mounting portion for mounting a pressure sensor, and the pressure sensor is used to detect the impact force when the suction valve core moves.
  • the drain valve assembly includes: a drain valve seat, the drain valve seat is provided with a third mating surface; a drain valve core, the drain valve core is slidably connected to the On the drain valve seat, the drain valve core is provided with a fourth mating surface that cooperates with the third mating surface; wherein, the third mating surface and the fourth mating surface are formed into conical surfaces; a liquid valve core stop valve, the discharge valve core stop valve part is arranged between the discharge valve seat and the upper end surface of the pump head body; and a second return spring, one end of the second return spring is sleeved It is arranged on the drain valve core, and the other end abuts on the stop valve member of the drain valve core.
  • the upper side of the pump head body is provided with a liquid discharge chamber blocking cover for blocking the opening on the upper side of the cavity, and the liquid discharge chamber blocking cover is pressed against the discharge chamber.
  • the liquid spool stop valve is connected with the pump head body by screws.
  • the drain chamber blocking cover and the drain valve core stop valve are provided with through holes communicating with each other up and down, and the drain valve core is provided with threaded holes; the drain valve core is provided with a threaded hole; A magnetostrictive sensor is installed on the sealing cover of the liquid discharge chamber, and the telescopic rod of the magnetostrictive sensor is fixedly connected with the liquid discharge valve core.
  • the pump head body is radially formed with a coaxial first through hole and a second through hole in the region of the spacer installation portion, and the first through hole is used for connecting with the spacer.
  • the hydraulic conversion components are connected; the second through hole is provided with an anti-rotation member for preventing the rotation of the spacer and a blocking member for fixing the anti-rotation member.
  • a through hole is provided in the middle of the blocking member, and a mounting hole for mounting a vibration sensor is provided on the anti-rotation member, and the vibration sensor is used to detect the vibration of the pump head body.
  • the hydraulic conversion assembly includes: a hydraulic conversion casing, the hydraulic conversion casing is fixedly connected to the outside of the first through hole of the pump head body; and a sliding connection For the plunger in the hydraulic conversion housing, one end of the plunger is connected with the crankcase assembly, and the other end is inserted into the first through hole.
  • the crankcase assembly includes: a crankcase body, at least a first-stage gear pair and a crank-slider mechanism located in the crankcase body; an input gear of the gear pair is used to communicate with the main drive The output shaft of the motor is connected; the crankshaft of the crank-slider mechanism is connected to the output gear of the gear pair, and the slider of the crank-slider mechanism is used to connect with the plunger, wherein the slider of the slider
  • the end is provided with an installation hole, and a reinforcement sleeve is embedded in the installation hole; the plunger is threadedly connected to the reinforcement sleeve; a protective sheet is arranged between the slider and the end face of the plunger, so The protective sheet is squeezed between the two.
  • the present invention also discloses a pump station, which includes a base, a plunger pump and a main drive motor located on the base; wherein, the main drive motor is used to drive the above-mentioned plunger pump of the present invention.
  • a lubrication system is further included, and the lubrication system is used to lubricate the components in the crankcase assembly;
  • the lubrication system includes: a lubricating oil supply device, the lubricating oil supplying The device includes a lubricating oil pump, a driving motor for the lubricating oil pump and a lubricating oil tank;
  • a cooling device the cooling device includes: a cooling box, the inlet of the cooling box is connected to the lubricating oil pump, and the outlet of the cooling box is connected to the crankcase assembly each lubricating point; the emulsion pipeline in the cooling tank, the emulsion pipeline is communicated with the pump head assembly, and the emulsion pipeline is used for cooling the lubricating oil in the cooling tank.
  • a stepped surface transitions between the mounting portion of the drain valve seat and the mounting portion of the spacer, and the diameter of the mounting portion of the drain valve seat is larger than that of the mounting portion of the spacer
  • the hole diameter of the spacer installation part is greater than or equal to the hole diameter of the suction valve seat installation part; in this way, the suction valve core assembly, the spacer sleeve and the liquid discharge valve assembly can be installed through one side of the pump head body, compared to In the prior art, it is easy to disassemble and assemble, and takes less time; at the same time, in the present application, the suction cavity is directly formed inside the pump head body, no additional processing and assembly of the suction box are required, and only a thinner plug is needed. The plate only needs to block the lower end opening, the manufacturing cost is low, and the assembly is simple and convenient.
  • a pressure sensor, a magnetostrictive sensor and a vibration sensor are integrated and installed in the plunger pump, and finally the impact force, displacement stroke and vibration monitoring of the pumping station are realized, which is the operation status of the pumping station. Provide new monitoring programs and analysis methods.
  • the cooling method of the external plunger pump is adopted, and the lubricating oil pump with lower power can be used to drive the motor, so as to solve the oil flow resistance of the existing cooler arranged in the liquid suction box.
  • Large, low cooling efficiency, low implementation cost, and small motor dimensions are more conducive to installation and maintenance in narrow spaces.
  • FIG. 1 is a cross-sectional view of a specific embodiment of a plunger pump provided by the present invention
  • FIG. 2 is a schematic structural diagram of a specific embodiment of the plunger pump provided by the present invention.
  • FIG. 3 is a cross-sectional view of the pump head assembly of the plunger pump provided by the present invention.
  • FIG. 4 is a partial schematic diagram of the connection relationship between the plunger and the slider part in the plunger pump provided by the present invention
  • FIG. 5 is a schematic structural diagram of a suction valve seat in a plunger pump provided by the present invention.
  • FIG. 6 is a schematic structural diagram of a suction valve core in a plunger pump provided by the present invention.
  • FIG. 7 is a schematic structural diagram of a drain valve seat in a plunger pump provided by the present invention.
  • FIG. 8 is a schematic structural diagram of a drain valve core in a plunger pump provided by the present invention.
  • FIG. 9 is a schematic diagram of a drain valve core stop valve in a plunger pump provided by the present invention.
  • FIG. 10 is a schematic structural diagram of a specific embodiment of the pump station provided by the present invention.
  • FIG. 1 and FIG. 2 show a specific embodiment of a plunger pump disclosed in the present invention.
  • the plunger pump in this embodiment is a five-plunger emulsion pump.
  • the plunger pump A includes three parts; the first part is the crankcase assembly 300 for connecting with the main drive motor to transmit power; the second part is the pump head assembly 100 for pumping the emulsion; the third part It is a hydraulic conversion assembly 200 for converting the mechanical power of the crankcase into the hydraulic change of the pump head assembly 100, wherein one end of the hydraulic conversion assembly 200 is connected to the crankcase assembly 300, and the other end is connected to the The pump head assembly 100 is connected.
  • the pump head assembly 100 includes a pump head body 101 , a suction valve assembly 102 and a discharge valve assembly 103 located inside the pump head body 101 , and the suction valve assembly 102 is connected with the discharge valve assembly 102 .
  • the spacer 104 isolated by the liquid valve assembly 103 , the suction chamber blocking plate 112 blocking the lower opening of the pump head body 101 , and the discharge chamber blocking cover 105 blocking the upper opening of the pump head body 101 .
  • the pump head body 101 is a cavity structure with upper and lower openings, and the cavity includes: a suction valve seat mounting portion 1012 for installing the suction valve assembly 102 , a suction valve seat for installing the spacer 104 .
  • the passage communicates with an emulsion supply device (not shown in the figure).
  • a stepped surface transitions between the drain valve seat mounting portion 1014 and the spacer mounting portion 1013 , and the diameter of the drain valve seat mounting portion 1014 is larger than that of the spacer mounting portion 1013
  • the hole diameter of the spacer mounting portion 1013 is greater than or equal to the hole diameter of the suction valve seat mounting portion 1012 .
  • the suction valve assembly 102 can easily enter the suction valve seat through the discharge valve seat mounting portion 1014 and the spacer mounting portion 1013
  • the installation part 1012; the spacer 104 enters the spacer installation part 1013 after passing through the discharge valve seat installation part 1014, and then installs the discharge valve assembly 103, so as to realize the suction valve assembly 102, the discharge valve assembly 103 and the spacer 104 All can be assembled and disassembled through the opening on the upper side of the cavity.
  • suction valve assembly 102, the discharge valve assembly 103 and the spacer 104 are all installed through one side, when the parts in the pump head need to be repaired, it is only necessary to open the upper end of the pump head body 101 to remove each part; At the same time, the suction valve assembly 102, the discharge valve assembly 103 and the spacer 104 are all installed on one side, and the axial matching relationship of each part is easy to ensure, avoiding the problem of mutual interference caused by poor position matching when installed on both sides.
  • the suction cavity is directly formed inside the pump head body 101 , which can avoid the problems that the suction part and the pump head body 101 are detachably connected, resulting in high manufacturing cost and time-consuming and laborious assembly.
  • the suction valve assembly 102 and the discharge valve assembly 103 are isolated by the spacer 104 in the present application, the suction valve assembly 102 and the discharge valve assembly 103 are structurally independent, which can be used for suction and discharge, especially high-pressure discharge.
  • the impact of the liquid flow on the suction valve core and the discharge valve core is avoided, and there is no one-sided force problem.
  • the guide part will not be eccentrically worn, and the sealing ring surface will not be generated. Partial wear, longer life.
  • the suction cavity 1011 shown is formed into a spherical cavity structure, and the diameter of the spherical cavity is larger than the diameter of other parts of the cavity, so as to ensure that enough emulsion enters the upper side of the suction valve core during suction. inside the cavity.
  • suction valve assembly 102 The composition and structure of the suction valve assembly 102 , the discharge valve assembly 103 , and the spacer 104 of the pump head assembly 100 are described below, respectively.
  • the suction valve assembly 102 includes a suction valve seat 1021 , a suction valve core 1022 , a return spring mounting seat 1023 located on the lower side of the suction valve seat 1021 , and a first return spring 1024 .
  • the suction valve core 1022 slides up and down along the suction valve seat 1021 under the action of hydraulic force, and the first return spring 1024 is used to provide a downward elastic force to the suction valve core 1022 for blocking all parts.
  • the return spring mounting seat 1023 is installed on the lower side of the suction valve seat 1021. Compared with the spring mounting seat designed for the lower end of the discharge valve core in the prior art to reset the suction valve core 1022, the suction valve core 1022 is reset. It is not affected by the action of the discharge spool, the suction spool is reliable in closing the valve, the impact is smaller, and the service life is longer.
  • the return spring mounting seat 1023 is sleeved on the suction valve core 1022, and the two can be fixed by screw connection or interference fit, and the return spring mounting seat 1023 is installed on the suction valve On the core 1022, the suction valve assembly 102 is completely independent of the discharge valve assembly 103, which is convenient for assembly and disassembly.
  • clearance fit is adopted between the suction valve seat 1021 and the pump head body 102 , and a sealing connection is achieved through a sealing ring to facilitate the assembly of the suction valve seat 1021 .
  • the sealing connection between the suction valve seat 1021 and the mounting portion 1012 of the suction valve seat 1021 is not unique.
  • An O-shaped sealing ring and two sealing retaining rings are arranged in the groove, and the two sealing retaining rings are respectively located on the upper and lower sides of the O-shaped sealing ring. Due to the high liquid pressure of the emulsion pump, sealing rings made of polyoxymethylene are designed on both sides of the O-ring to prevent the O-ring from being damaged under the action of high-pressure emulsion.
  • the suction valve seat 1021 includes: an outer casing 1021-1, an inner casing 1021-2, and a transition connecting the inner casing 1021-2 and the outer casing 1021-1 Arm 1021-3.
  • the outer wall of the outer casing 1021-1 is in a sealed connection with the mounting portion 1012 of the suction valve seat 1021, and the end of the inner wall of the outer casing 1021-1 is provided with a first fitting for matching with the suction valve core 1022.
  • the mating surface 1021-4; the inner wall of the inner sleeve body 1021-2 is slidably connected with the liquid suction valve core 1022.
  • the suction valve core 1022 includes a valve core head 1022-1 and a valve core rod 1022-2, and the valve core head 1022-1 is used for connecting with the outer casing of the suction valve seat 1021 1021-1, the valve core rod 1022-2 is slidably connected to the inner sleeve body 1021-2 of the suction valve seat 1021.
  • the above-mentioned liquid suction valve seat 1021 adopts the structure of an inner and outer casing, and the liquid suction valve core 1022 adopts the structure of a valve core head 1022-1 and a valve core rod 1022-2, so that the liquid suction valve core 1022 can be reliably moved along the
  • the inner sleeve of the suction valve seat 1021 slides in the body to avoid radial shaking of the suction valve core relative to the suction valve seat in the prior art.
  • the valve core head 1022-1 is provided with a second mating surface 1022-3 that cooperates with the first mating surface 1021-4, wherein the first mating surface 1021-4 and the second mating surface 1022- 3. It is formed into a conical surface; the suction valve core 1022 and the suction valve seat 1021 cooperate with each other through the conical surface to make the sealing between the two better, and at the same time, the wear can be compensated by itself to prolong the service life.
  • a pressure sensor 107 is installed at the bottom of the suction valve seat 1021 , and the pressure sensor 107 is used to detect the action of the suction valve core 1022 when it moves The impact force of the suction valve seat 1021.
  • the pressure sensor 107 monitors the impact force of each action of the suction and discharge valve core in real time, and can also calculate the impact frequency according to the impact force change curve. When the impact force and frequency deviate greatly from the normal state, it can be determined that the group of suction and discharge liquid The valve core is faulty, and the alarm reminds the operator to dismantle and investigate.
  • the signal line of the pressure sensor 107 is connected to the wireless transmitter in a wired manner, the wireless transmitter is embedded in the outer surface of the pump body, and the wireless transmitter transmits the pressure value to the controller through a wireless signal.
  • the drain valve assembly 103 includes a drain valve seat 1031 , a drain valve core 1032 slidably connected to the drain valve seat 1031 , and a drain valve located on the upper side of the drain valve seat 1031 .
  • the core stop valve member 1033 and the second return spring 1034 The drain valve core 1032 slides up and down along the drain valve seat 1031 under the action of hydraulic force, and the second return spring 1034 is used to provide downward elastic force to the drain valve core 1032 for blocking the drain valve core 1032.
  • the drain valve core stop valve 1033 plays the role of installing the second return spring 1034 and also plays the role of blocking the drain cavity.
  • the drain valve core stop valve 1033 is axially sealed, and the sealed At the same time, the axial limit is carried out.
  • the upper side of the pump head body 101 is provided with a drain cavity blocking cover 105 for blocking the opening on the upper side of the cavity , the drain chamber blocking cover 105 is pressed against the drain valve core stop valve 1033 and is connected with the pump head body 101 by screws.
  • the drain valve seat 1031 is provided with a third mating surface 1031 - 1
  • the drain valve core 1032 is provided with the third mating surface 1031 -1 a fourth mating surface 1031-2 for mating; wherein, the third mating surface 1031-1 and the fourth mating surface 1031-2 are formed into conical surfaces; the drain valve core 1032 and the drain valve seat 1031 makes the sealing between the two better through the cooperation of the conical surface. At the same time, it can compensate itself after wear and prolong the service life.
  • the drain valve core stop valve 1033 is disposed between the drain valve seat 1031 and the upper end surface of the pump head body 101 .
  • the drain valve core stop valve 1033 includes a spring support portion 1033-1 located on the lower side, a blocking portion 1033-2 located on the upper side, and a connecting portion 1033-3 located therebetween. .
  • the spring support portion 1033-1 includes a horizontally extending support plate and a support arm extending downward along the support plate.
  • a protrusion or a circular snap ring for positioning the second return spring 1034 is formed on the plate.
  • the outer wall surface of the blocking portion 1033-2 has a stepped surface, and the cylindrical surface of the blocking portion 1033-2 located on the lower side of the stepped surface is sealedly connected to the inner wall of the pump head body 101, and the blocking portion 1033- 2.
  • the cylindrical surface on the upper side of the stepped surface is pressed against the upper end surface of the pump head body 101.
  • the stepped surface structure of the blocking portion 1033-2 can avoid that the discharge valve core stop valve 1033 and the liquid discharge cavity blocking cover 105 are easily located in the pump head body 101 in the structure without the stepped surface. There is a gap between the upper end faces, which leads to the problem that the sealing performance of the cavity is not easy to ensure.
  • the blocking portion 1033-2 without a stepped surface cannot achieve axial positioning.
  • the upper end of the drain valve core 1032 is formed with a cylindrical protrusion, and one end of the second return spring 1034 is sleeved on the cylindrical protrusion.
  • the drain chamber blocking cover 105 and the drain valve core stop valve 1033 are provided with through holes communicating with each other up and down.
  • the liquid valve core 1032 is provided with threaded holes; a magnetostrictive sensor 108 is installed on the liquid discharge chamber blocking cover 105, and the telescopic rod of the magnetostrictive sensor 108 is threadedly connected to a transition connecting rod, and the transition The lower end of the connecting rod is threadedly connected to the threaded hole of the drain valve core 1032 .
  • the magnetostrictive sensor 108 can calculate the action according to the displacement stroke change curve of the drain valve core 1032 .
  • the displacement stroke and frequency deviates greatly from the normal state, it can be judged that the suction and discharge valve cores 1032 of this group are faulty, and an alarm is issued to remind the operator to dismantle and investigate.
  • the spacer sleeve 104 is formed into a cylindrical sleeve body, and the cylindrical sleeve body is radially formed with two coaxially disposed through holes.
  • the pump head body 101 is radially formed with a coaxial first through hole 1015 and a second through hole 1016 in the region of the spacer mounting portion 1013 .
  • the first through hole 1015 It is used to communicate with the hydraulic conversion assembly;
  • the second through hole 1016 is provided with an anti-rotation member 113 for preventing the rotation of the spacer 104 and a blocking member 106 for fixing the anti-rotation member 113 .
  • a vibration sensor 109 is also provided on the pump head body 101 .
  • a through hole is formed in the middle of the blocking member 106
  • a threaded mounting hole is formed on the anti-rotation member 113
  • the vibration sensor 109 is threadedly connected to the thread of the anti-rotation member 113 . on the mounting hole.
  • the vibration sensor 109 detects the vibration signal of the pump head body 101 in real time every time the suction and discharge valve core 1032 moves, and calculates the acceleration spectrum curve according to the vibration signal. When the vibration spectrum deviates greatly from the normal state, it can be determined that the set of suction and discharge valve cores 1032 has a fault, and the alarm reminds the operator to dismantle and investigate.
  • the pressure sensor 107, the magnetostrictive sensor 108 and the vibration sensor 109 are integrated in the pump head assembly, and finally the impact force, displacement stroke and vibration monitoring of the pump station are realized, and the operation of the pump station is realized. Provide a new monitoring scheme and analysis method for the situation.
  • the hydraulic conversion assembly 200 includes a hydraulic conversion housing 201 and a plunger 202 slidably connected in the hydraulic conversion housing 201 .
  • the hydraulic conversion housing 201 is fixedly connected to the outside of the first through hole 1015 of the pump head body 101; one end of the plunger 202 is connected to the crankcase assembly 300, and the other end is inserted in the first through hole 1015 .
  • a middle case 203 is also provided outside the hydraulic conversion assembly 200 , the crankcase assembly 300 is connected with the pump head assembly 100 through the middle case 203 , and the plunger 202 is connected with the crankcase assembly 300 The part is located inside the middle box 203 to avoid this part being exposed outside.
  • the crankcase assembly 300 includes: a crankcase body 301 and at least one gear pair and a crank-slider mechanism located in the crankcase body 301 ; the input gear shaft 302 of the gear pair is used for connecting with the gear pair.
  • the output shaft of the main drive motor is connected; the crankshaft 304 of the crank-slider mechanism is connected to the output gear 303 of the gear pair, and the slider 305 of the crank-slider mechanism is used to connect with the plunger 202 .
  • the end of the slider 305 of the crankcase assembly 300 is provided with an installation hole, and a reinforcement sleeve 306 is embedded in the installation hole; the plunger 202 is threadedly connected to the reinforcement on set 306. Since the plunger 202 is usually made of ceramic material, and the slider 305 is made of stainless steel, by setting the reinforcement sleeve 306 at the connecting end of the slider 305 and the plunger 202 to solve the problem that the plunger 202 and the slider 305 pass through the thread The direct connection of the plunger 202 causes the failure of thread tripping and fracture, which improves the connection strength between the plunger 202 and the slider 305 , and facilitates the replacement and maintenance of the plunger 202 .
  • the reinforcing sleeve is a steel screw sleeve, and the inner and outer threads are respectively provided with threads.
  • the protective sheet 400 is made of a material such as rubber that is softer than a ceramic material and a stainless steel material, and is squeezed between the two to prevent the plunger 202 from being damaged and the slider 305 from being damaged.
  • the rotary motion input by the main drive motor drives the input gear shaft 302 and the output gear 303 on the crankshaft 304 to perform a first-level deceleration movement, and at the same time, the crankshaft 304 drives the connecting rod to rotate, which is converted into a slider 305.
  • the reciprocating linear motion of the plunger 202 causes the volume of the cavity in the pump head assembly 100 to change.
  • the plunger 202 When the slider 305 is at the farthest end, the plunger 202 causes the volume of the cavity to increase to form a negative pressure, and the suction valve core 1022 Open and close the discharge valve core 1032, and this process completes the suction; when the slider 305 moves to the most proximal end, the plunger 202 causes the volume of the cavity to decrease to compress the suctioned liquid to form high-pressure liquid, and the suction valve core 1022 closes, The discharge valve core 1032 is opened to discharge the high-pressure liquid. This process completes the discharge.
  • the control of the high-pressure hydraulic pressure is realized by the unloading valve 110 and the safety valve 111 installed on both sides of the pump head. The above two processes are the interaction of five groups of plungers 202.
  • Step 1 Assemble the suction valve assemblies 102 into 5 groups for use, grind the suction valve seat 1021 and the suction valve core 1022 before assembling, and conduct a sealing test.
  • Step 2 Insert 2 O-ring retaining rings and 1 O-ring into the sealing ring groove of the drain valve seat 1031.
  • the assembly method is to install an O-ring retaining ring on each side of the O-ring, and the upper row
  • the liquid valve assembly 103 is assembled in 5 groups. After the assembly is completed, grease the surface of the O-ring for use.
  • Step 3 Insert the combined sealing ring into the sealing ring groove of the anti-rotation member 113.
  • the above components need to be assembled in 5 groups. After the assembly is completed, apply grease on the surface of the sealing ring of the components and wait for use.
  • Step 4 Put the combined sealing ring in the sealing ring groove of the drain valve core stop valve 1033.
  • the above components need to be assembled in 5 groups. After the assembly is completed, apply grease on the surface of the sealing ring of the components and wait for use.
  • Step 5 Put the suction valve assembly 102 completed in step 1 into the suction valve assembly 102 through the upper opening of the pump head body 101, and tap lightly with a copper rod to make it closely fit with the pump head body 101. Can.
  • Step 6 Place the spacer 104 on the suction valve assembly 102 installed in Step 5 through the upper opening of the pump head body 101, install the anti-rotation member 113 and the blocking member 106 at the second through hole 1016, The anti-rotation member 113 is inserted into the small hole of the spacer sleeve 104, the spacer sleeve 104 is circumferentially positioned, and then the blocking member 106 is used to press it.
  • Step 7 Assemble the drain valve seat 1031 completed in step 2 to the upper end of the spacer 104 through the assembly completed in step 6, and tap lightly with a copper rod to make it fit with the spacer 104.
  • Step 8 Assemble the drain valve core 1032 and the second return spring 1034 into the assembly completed in Step 7.
  • Step 9 Assemble the drain valve core stop valve 1033 completed in step 4 into the assembly completed in step 8, and tap the drain valve core stop valve 1033 with a copper rod to make it stick to the drain valve seat 1031. After that, the pump head assembly 100 is installed.
  • Step 1 remove the drain chamber sealing cover 105
  • Step 2 Disassemble the drain assembly 103 from the upper side of the pump head body 101 in turn;
  • Step 3 Disassemble the blocking member 106 and the anti-rotation member 113 in sequence
  • Step 4 Remove the plunger 202 from the slider 305 along the first through hole 1015 and the second through hole 1016;
  • Step 5 Disassemble the spacer 104 and the suction valve assembly 102 from the upper side of the pump head body 101 in sequence;
  • Figure 10 shows a specific embodiment of a five-piston emulsion pump station provided by the present invention, which includes a base, a plunger pump A and a main drive motor 2 located on the base; wherein the main drive The motor 2 is used to drive the plunger pump A, and the plunger pump A adopts the plunger pump A of the above-mentioned specific embodiment, which will not be repeated here.
  • the emulsion pump station also includes a lubrication system for lubricating components in the crankcase assembly 300 of the plunger pump A, such as crankshafts, gears, connecting rods, bearings, sliders, etc. , in order to sufficiently cool the lubricating oil during operation, the lubricating system includes a lubricating oil supply device and a cooling device.
  • a lubrication system for lubricating components in the crankcase assembly 300 of the plunger pump A, such as crankshafts, gears, connecting rods, bearings, sliders, etc.
  • the lubricating oil supply device includes a lubricating oil pump 5, a lubricating oil pump driving motor 4 and a lubricating oil tank (not shown in the figure);
  • the cooling device includes:
  • the cooling box 3 the inlet of the cooling box 3 is connected to the lubricating oil pump 5, and the outlet of the cooling box 3 is connected to the crankshaft, gears, connecting rods, bearings, sliders and other components in the crankcase assembly 300. lubrication point;
  • the emulsion pipeline (not shown in the figure) located in the cooling tank 3 is communicated with the pump head assembly 100, and the emulsion pipeline is used to cool the cooling tank 3. lubricating oil.
  • the pump station of the present invention adopts the cooling method of the external plunger pump A, which can use the lubricating oil pump with lower power to drive the motor 4, so as to solve the problem that the existing cooler disposed in the suction box has large oil flow resistance and cooling
  • the problem of low efficiency, low implementation cost, and small size of the motor are more conducive to installation and maintenance in a narrow space.

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Abstract

一种柱塞泵，包括泵头总成（100），其包括：泵头体（101），泵头体（101）内具有腔体；位于腔体内的吸液阀组件（102）、排液阀组件（103）以及将吸液阀组件（102）与排液阀组件（103）隔离的隔套（104）；其中，腔体包括：用于安装吸液阀组件（102）的吸液阀座安装部（1012），用于安装隔套（104）的隔套安装部（1013），用于安装排液阀组件（103）的排液阀座安装部（1014）以及位于吸液阀座安装部（1012）下侧的吸液腔（1011），吸液腔（1011）通过管路与乳化液供给装置连通；排液阀座安装部（1014）与隔套安装部（1013）之间通过阶梯面过渡，且排液阀座安装部（1014）的孔径大于隔套安装部（1013）的孔径，隔套安装部（1013）的孔径大于或等于吸液阀座安装部（1012）的孔径。以及一种采用这种柱塞泵的泵站，这种柱塞泵便于拆装和维修。

Description

一种柱塞泵及泵站
本申请要求在2020年7月23日提交中国专利局、申请号为202010718136.1、发明名称为“一种柱塞泵及泵站”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种用于乳化液泵站，尤其涉及一种五柱塞乳化液泵及泵站。
背景技术
乳化液泵站是煤矿综采工作面必不可少的重要设备，为工作面液压支架提供液压动力，是整个工作面液压系统的心脏。近年来，随着我国大采高工作面的日益增多，为了满足大采高液压支架的高支撑阻力、高工作阻力，以及快速移架和安全支护的需求，对乳化液泵站的可靠性提出了更高的要求。
目前，乳化液泵通常采用大流量乳化液泵五柱塞结构或七柱塞结构，其具有传动效率高、支撑平稳、齿轮副轴向分力小、结构紧凑等优点，得到了广泛应用。
现有技术中，柱塞式泵的泵头体内的吸液阀芯组件及排液阀组件分别从泵头体的两侧装配，因此在更换吸液阀座、吸液阀芯、排液阀座、排液阀芯时，需要拆除吸液管路、吸水盒等零部件，可操作性差，维修时间长、维修成本高；另外，现有柱塞泵中，通常在排液阀芯下部设计吸液阀芯的复位弹簧安装座，一方面增加了排液阀芯的质量，惯性力大，另一方面，高压液流对吸液阀芯、排液阀芯产生冲击，单侧受力较大，在阀芯升起或降落时导向部分发生偏磨，进而密封环面产生偏磨，影响寿命；现有柱塞泵的泵头体与吸液盒是两个独立的零部件结构，两者安装时，需要在吸液盒上成型较长的安装孔，并通过较长的螺杆实现两者的拆装，制作及装配成本较高。
另外，目前针对泵站的监测技术手段主要是对曲轴箱中齿轮油的监测(油液温度监测、油压监测、油位监测)、液力端的水压监测以及电机温度监测，也有部分专利涉及到机械设备的振动、油质监测。但是受安装空间限制、传输信号影响等因素，传感器一般安装在泵站外侧，目前还没有对于泵站液力端吸排液阀芯等内置精密核心部件的监测。
发明内容
本发明要解决的第一个技术问题是现有柱塞泵结构不合理导致其泵头拆装费时费力的问题。
针对上述技术问题，本发明提供如下技术方案：
一种柱塞泵，其包括，曲轴箱总成，用于与主驱动电机连接以传递动力；泵头总成，所述泵头总成用于泵送乳化液；以及连接于曲轴箱总成与所述泵头总成之间的液力转化组件，所述液力转化组件用于将所述曲轴箱的机械动力转换为泵头总成的液力变化；所述泵头总成包括：泵头体，所述泵头体内具有腔体；位于所述腔体内的吸液阀组件、排液阀组件以及将所述吸液阀组件与所述排液阀组件隔离的隔套；其中，所述腔体包括：用于安装所述吸液阀组件的吸液阀座安装部，用于安装所述隔套的隔套安装部，用于安装所述排液阀组件的排液阀座安装部以及位于所述吸液阀座安装部下侧的吸液腔，所述吸液腔通过管路与乳化液供给装置连通；所述排液阀座安装部与所述隔套安装部之间通过阶梯面过渡，且所述排液阀座安装部的孔径大于所述隔套安装部的孔径，所述隔套安装部的孔径大于或等于所述吸液阀座安装部的孔径。
本申请的一部分实施方式中，所述吸液阀组件包括：吸液阀座，所述吸液阀座设有第一配合面；吸液阀芯，所述吸液阀芯滑动连接于所述吸液阀座上，所述吸液阀芯上设有与所述第一配合面配合的第二配合面；其中，所述第一配合面与所述第二配合面成型为圆锥面。
本申请的一部分实施方式中，所述吸液阀组件还包括位于所述吸液阀座下侧的复位弹簧安装座，所述复位弹簧安装座套设于所述阀芯上；以及 位于所述吸液阀座与所述复位弹簧安装座之间的第一复位弹簧。
本申请的一部分实施方式中，外套体，所述外套体的外壁与所述吸液阀座安装部密封连接，所述外套体的内壁的端部设有所述第一配合面；内套体，所述内套体与所述外套体通过过渡臂连接；所述内套体的内壁与所述吸液阀芯滑动连接。
本申请的一部分实施方式中，所述吸液阀芯包括：阀芯头，所述阀芯头设有所述第二配合面；阀芯杆，所述阀芯杆滑动连接于所述吸液阀座的内套体内。
本申请的一部分实施方式中，所述吸液阀座底部设有用于安装压力传感器的压力传感器安装部，所述压力传感器用于检测所述吸液阀芯移动时的冲击力。
本申请的一部分实施方式中，所述排液阀组件包括：排液阀座，所述排液阀座设有第三配合面；排液阀芯，所述排液阀芯滑动连接于所述排液阀座上，所述排液阀芯上设有与所述第三配合面配合的第四配合面；其中，所述第三配合面与所述第四配合面成型为圆锥面；排液阀芯止阀件，所述排液阀芯止阀件设置于所述排液阀座与所述泵头体的上端面之间；以及第二复位弹簧，所述第二复位弹簧一端套设于所述排液阀芯，另一端抵靠在所述排液阀芯止阀件上。
本申请的一部分实施方式中，所述泵头体的上侧设有用于封堵所述腔体上侧开口的排液腔封堵盖，所述排液腔封堵盖压靠于所述排液阀芯止阀件上并与所述泵头体通过螺钉连接。
本申请的一部分实施方式中，所述排液腔封堵盖以及所述排液阀芯止阀件上设有上下互相连通的通孔，所述排液阀芯上设有螺纹孔；所述排液腔封堵盖上安装有磁致伸缩传感器，所述磁致伸缩传感器的伸缩杆与所述排液阀芯固定连接。
本申请的一部分实施方式中，所述泵头体在所述隔套安装部的区域上沿径向成型有同轴的第一通孔和第二通孔，所述第一通孔用于与所述液力 转化组件连通；所述第二通孔内设有用于防止所述隔套转动的防转件以及用于固定所述防转件的封堵件。
本申请的一部分实施方式中，所述封堵件中部设有通孔，所述防转件上设有用于安装振动传感器的安装孔，所述振动传感器用于检测所述泵头体的振动。
本申请的一部分实施方式中，所述液力转化组件包括：液力转换壳体，所述液力转换壳体固定连接于所述泵头体的所述第一通孔处外侧；以及滑动连接于所述液力转换壳体内的柱塞，所述柱塞一端与所述曲轴箱总成连接，另一端插接于所述第一通孔内。
本申请的一部分实施方式中，所述曲轴箱总成包括：曲轴箱体以及位于曲轴箱体内的至少一级齿轮副以及曲柄滑块机构；所述齿轮副的输入齿轮用于与所述主驱动电机的输出轴连接；所述曲柄滑块机构的曲轴连接于所述齿轮副的输出齿轮上，所述曲柄滑块机构的滑块用于与所述柱塞连接，其中，所述滑块的端部设有安装孔，所述安装孔内嵌设有加固套；所述柱塞螺纹连接于所述加固套上；所述滑块与所述柱塞的端面之间设有防护片，所述防护片挤压于两者之间。
本发明同时公开一种泵站，其包括，底座以及位于底座上的柱塞泵、主驱动电机；其中，所述主驱动电机用于驱动本发明上述的柱塞泵。
上述泵站的一部分实施方式中，还包括润滑系统，所述润滑系统用于对所述曲轴箱总成内的零部件进行润滑；所述润滑系统包括：润滑油供给装置，所述润滑油供给装置包括润滑油泵、润滑油泵驱动电机以及润滑油箱；冷却装置，所述冷却装置包括：冷却箱，所述冷却箱的进口连通所述润滑油泵，所述冷却箱的出口连通所述曲轴箱总成的各个润滑点；位于冷却箱内的乳化液管路，所述乳化液管路与所述泵头总成连通，所述乳化液管路用于冷却所述冷却箱内的润滑油。
本发明的技术方案相对现有技术具有如下技术效果：
本发明公开的柱塞泵中，泵头体内侧的腔体中，排液阀座安装部与隔 套安装部之间通过阶梯面过渡，且排液阀座安装部的孔径大于隔套安装部的孔径，隔套安装部的孔径大于或等于所述吸液阀座安装部的孔径；这样，吸液阀芯组件、隔套及排液阀组件可以通过泵头体的一侧安装，相比现有技术，其拆装方便，耗时较小；同时，本申请中，吸液腔直接成型于泵头体内部，不需要额外加工及装配吸液盒，只需增加一个较薄的封堵板封堵住下端开口即可，制造成本低，且装配简单方便。
进一步地，本发明公开的柱塞泵中，在柱塞泵内集成安装压力传感器、磁致伸缩传感器以及振动传感器，最终实现对泵站的冲击力、位移行程、振动监测，为泵站运行状况提供全新的监测方案、分析手段。
进一步地，本发明公开的泵站中，采用外置于柱塞泵的冷却方式，其可以选用功率更小的润滑油泵驱动电机，解决现有设置在吸液盒内的冷却器油液流阻大、冷却效率低问题，实施成本低，电机外形尺寸小更利于狭小空间的安装维护。
附图说明
下面将通过附图详细描述本发明中优选实施例，将有助于理解本发明的目的和优点，其中:
图1为本发明提供的柱塞泵一种具体实施方式的剖视图；
图2为本发明提供的柱塞泵一种具体实施方式的结构示意图；
图3为本发明提供的柱塞泵的泵头总成的剖视图；
图4为本发明提供的柱塞泵中柱塞与滑块部分的连接关系的局部示意图；
图5为本发明提供的柱塞泵中吸液阀座的结构示意图；
图6为本发明提供的柱塞泵中吸液阀芯的结构示意图；
图7为本发明提供的柱塞泵中排液阀座的结构示意图；
图8为本发明提供的柱塞泵中排液阀芯的结构示意图；
图9为本发明提供的柱塞泵中排液阀芯止阀件的示意图；
图10为本发明提供的泵站的一种具体实施方式的结构示意图。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
如图1、图2所示为本发明公开的一种柱塞泵的具体实施方式，本实施方式的柱塞泵为五柱塞乳化液泵。该柱塞泵A包括三大部分；第一部分是用于与主驱动电机连接以传递动力的曲轴箱总成300；第二部分是用于泵送乳化液的泵头总成100；第三部分是用于将所述曲轴箱的机械动力转换为泵头总成100的液力变化的液力转化组件200，其中，液力转化组件200一端连接于曲轴箱总成300上，另一端与所述泵头总成100连接。
以下分别介绍以上三部分的结构以及互相的连接关系。
<泵头总成100>
如图3所示，所述泵头总成100包括泵头体101以及位于泵头体101内侧的吸液阀组件102、排液阀组件103、将所述吸液阀组件102与所述排液阀组件103隔离的隔套104以及封堵所述泵头体101下侧开口的吸液腔封堵板112以及封堵所述泵头体101上侧开口的排液腔封堵盖105。
其中，所述泵头体101为上下开口的腔体结构，所述腔体包括：用于安装所述吸液阀组件102的吸液阀座安装部1012，用于安装所述隔套104的隔套安装部1013，用于安装所述排液阀组件103的排液阀座安装部1014，以及位于所述吸液阀组件102下侧的吸液腔1011，所述吸液腔1011通过管路与乳化液供给装置(图中未示出)连通。
为了方便各个组件的安装，所述排液阀座安装部1014与所述隔套安装部1013之间通过阶梯面过渡，所述排液阀座安装部1014的孔径大于所述隔套安装部1013的孔径，所述隔套安装部1013的孔径大于或等于吸液阀 座安装部1012的孔径。这样，安装吸液阀组件102、排液阀组件103以及隔套104时，吸液阀组件102能够很容易地经过排液阀座安装部1014与所述隔套安装部1013进入吸液阀座安装部1012；隔套104经过排液阀座安装部1014后进入隔套安装部1013，再安装排液阀组件103，从而实现所述吸液阀组件102、排液阀组件103以及隔套104均可以通过腔体上侧开口装配、拆卸。
由于吸液阀组件102、排液阀组件103以及隔套104均通过一侧安装，当泵头内的零部件需要维修时，只需要打开泵头体101的上端即可将各个零部件拆除；同时，吸液阀组件102、排液阀组件103以及隔套104均通过一侧安装，各个部分的轴向配合关系容易保证，避免通过两侧安装时位置匹配较差导致互相干涉的问题。
同时，吸液腔直接成型于泵头体101内部，其可以避免吸液部分与泵头体101部分通过可拆卸的方式连接导致两者制造成本较高且装配费时费力的问题。
另外，由于本申请中吸液阀组件102与排液阀组件103之间通过隔套104隔离，吸液阀组件102与排液阀组件103结构独立设置，其可以在吸排液尤其是高压排液过程中，避免液流对吸液阀芯、排液阀芯产生冲击，不存在单侧受力问题，阀芯开启或关闭过程中导向部分不会发生偏磨，进而密封环面也不会产生偏磨，寿命更长。
具体地，所示吸液腔1011成型为球形腔体结构，且球形腔体的直径大于所述腔体其他部分的直径，以保证吸液时足够多的乳化液进入吸液阀芯上侧的腔体内。
以下分别介绍所述泵头总成100的吸液阀组件102、排液阀组件103以及隔套104的组成以及结构。
<吸液阀组件102>
如图3所示，所述吸液阀组件102包括吸液阀座1021、吸液阀芯1022、位于所述吸液阀座1021下侧的复位弹簧安装座1023以及第一复位弹簧 1024。
吸液阀芯1022在液力作用下沿所述吸液阀座1021上下滑动，所述第一复位弹簧1024用于向所述吸液阀芯1022提供向下的弹性力，用于封堵所述吸液阀座1021的开口。所述复位弹簧安装座1023安装于所述吸液阀座1021下侧，相比现有技术中排液阀芯下端设计用于吸液阀芯1022复位的弹簧安装座，吸液阀芯1022复位时不受排液阀芯动作的影响，吸液阀芯关阀可靠，冲击更小、寿命更长。
具体地，所述复位弹簧安装座1023套设于所述吸液阀芯1022上，两者可通过螺纹连接或过盈配合的方式固定，所述复位弹簧安装座1023安装于所述吸液阀芯1022上以使吸液阀组件102完全独立于排液阀组件103，便于装配和拆卸。
具体地，所述吸液阀座1021与所述泵头体102之间采用间隙配合，并通过密封圈实现密封连接以方便吸液阀座1021的装配。具体地，所述吸液阀座1021与所述吸液阀座1021安装部1012的密封连接方式不唯一，作为优选，所述吸液阀座1021的外侧面上设有密封槽，所述密封槽内设有O型密封圈以及两个密封挡圈，两个所述密封挡圈分别位于所述O型密封圈的上下两侧。因乳化液泵液体压力较高，在O型密封圈两侧均设计有材料为聚甲醛的密封挡圈以防止O型密封圈在高压乳化液作用下发生损坏。
具体地，如图5所示，所述吸液阀座1021包括：外套体1021-1、内套体1021-2以及连接所述内套体1021-2与所述外套体1021-1的过渡臂1021-3。
所述外套体1021-1的外壁与所述吸液阀座1021安装部1012密封连接，所述外套体1021-1的内壁的端部设有用于与所述吸液阀芯1022配合的第一配合面1021-4；所述内套体1021-2的内壁与所述吸液阀芯1022滑动连接。
如图6所示，所述吸液阀芯1022包括：阀芯头1022-1以及阀芯杆 1022-2，所述阀芯头1022-1用于与所述吸液阀座1021的外套体1021-1配合，所述阀芯杆1022-2滑动连接于所述吸液阀座1021的内套体1021-2内。
上述吸液阀座1021采用内外套体的结构，所述吸液阀芯1022采用阀芯头1022-1以及阀芯杆1022-2的结构，可以使所述吸液阀芯1022能够可靠地沿所述吸液阀座1021的内套体内滑动，避免现有技术中吸液阀芯相对所述吸液阀座径向晃动。
所述阀芯头1022-1设有与所述第一配合面1021-4配合的第二配合面1022-3，其中，所述第一配合面1021-4与所述第二配合面1022-3成型为圆锥面；所述吸液阀芯1022与吸液阀座1021通过锥面配合使两者之间的密封性更好、同时，磨损后可自行实现补偿，延长使用寿命。
为了检测吸液阀芯1022的冲击力，如图3所示，所述吸液阀座1021底部安装有压力传感器107，所述压力传感器107用于检测所述吸液阀芯1022移动时作用于所述吸液阀座1021的冲击力。所述压力传感器107实时监测每次吸排液阀芯动作的冲击力，也可以根据冲击力变化曲线计算出冲击频率，当冲击力和频率与正常状态发生较大偏离时，可以判断该组吸排液阀芯出现了故障，报警提醒操作人员进行拆解排查。压力传感器107的信号线通过有线方式连接到无线发射器，无线发射器内嵌在泵体外表面，无线发射器通过无线信号将压力值传输至控制器。
<排液阀组件103>
如图3所示，所述排液阀组件103包括排液阀座1031、滑动连接于所述排液阀座1031上的排液阀芯1032、位于排液阀座1031上侧的排液阀芯止阀件1033以及第二复位弹簧1034。排液阀芯1032在液力作用下沿所述排液阀座1031上下滑动，所述第二复位弹簧1034用于向所述排液阀芯1032提供向下的弹性力，用于封堵所述吸液阀座1021的开口。所述排液阀芯止阀件1033起到安装第二复位弹簧1034的作用的同时也起到封堵排液腔的作用，所述排液阀芯止阀件1033采用轴向密封，密封的同时进行轴向限位。
为了保证排液阀芯止阀件1033与所述泵头体101的可靠连接，所述泵头体101的上侧设有用于封堵所述腔体上侧开口的排液腔封堵盖105，所述排液腔封堵盖105压靠于所述排液阀芯止阀件1033上并与所述泵头体101通过螺钉连接。
具体地，如图7所示，所述排液阀座1031设有第三配合面1031-1，如图8所示，所述排液阀芯1032上设有与所述第三配合面1031-1配合的第四配合面1031-2；其中，所述第三配合面1031-1与所述第四配合面1031-2成型为圆锥面；所述排液阀芯1032与排液阀座1031通过锥面配合使两者之间的密封性更好、同时，磨损后可自行实现补偿，延长使用寿命。
具体地，如图3所示，所述排液阀芯止阀件1033设置于所述排液阀座1031与所述泵头体101的上端面之间。如图9所示，所述排液阀芯止阀件1033包括位于下侧的弹簧支撑部1033-1、位于上侧的封堵部1033-2以及位于两者之间的连接部1033-3。
所述弹簧支撑部1033-1包括水平方向延伸的支撑板以及沿所述支撑板向下延伸的支撑臂，所述支撑臂抵靠于所述排液阀座1031的上端面上，所述支撑板上成型有定位所述第二复位弹簧1034的凸起或圆形卡环。
所述封堵部1033-2的外壁面具有阶梯面，所述封堵部1033-2位于阶梯面下侧的圆柱面与所述泵头体101的内壁密封连接，所述封堵部1033-2位于阶梯面上侧的圆柱面压靠于所述泵头体101的上端面上。所述封堵部1033-2的阶梯面结构可以避免不设置阶梯面的结构中容易所述排液阀芯止阀件1033与所述排液腔封堵盖105在所述泵头体101的上端面之间容易有缝隙导致腔体密封性不容易保证的问题。另一方面，不设置阶梯面的封堵部1033-2无法实现轴向定位，当所述排液阀芯止阀件1033轴向尺寸低于所述泵头体101端面与排液阀座1031上表面之间的距离时，会导致该所述排液阀芯止阀件1033的上下偏移；通过所述封堵部1033-2的阶梯面进行轴向定位，其使排液阀芯止阀件1033相对所述泵头体101的位置固定，降低该排液阀芯止阀件1033的加工精度。
具体地，所述排液阀芯1032的上端成型圆柱凸起，所述第二复位弹簧1034一端套设于所述圆柱凸起上。
为了检测排液阀芯1032的线性位移，如图3所示，所述排液腔封堵盖105以及所述排液阀芯止阀件1033上设有上下互相连通的通孔，所述排液阀芯1032上设有螺纹孔；所述排液腔封堵盖105上安装有磁致伸缩传感器108，所述磁致伸缩传感器108的伸缩杆螺纹连接于一个过渡连接杆上，所述过渡连接杆的下端螺纹连接于所述排液阀芯1032的螺纹孔上。这样，实现了所述磁致伸缩传感器108的伸缩杆与所述排液阀芯1032的固定连接，可以所述磁致伸缩传感器108根据所述排液阀芯1032的位移行程变化曲线计算出动作频率，当位移行程和频率与正常状态发生较大偏离时，可以判断该组吸排液阀芯1032出现了故障，报警提醒操作人员进行拆解排查。
<隔套104>
如图3所示，所述隔套104成型为圆柱形套体，所述圆柱形套体沿径向上成型有同轴设置的两个通孔。
如图3所示，所述泵头体101在所述隔套安装部1013的区域上沿径向成型有同轴的第一通孔1015和第二通孔1016，所述第一通孔1015用于与所述液力转化组件连通；所述第二通孔1016内设有用于防止所述隔套104转动的防转件113以及用于固定所述防转件113的封堵件106。
为了检测泵头体101的振动信号，所述泵头体101上还设置振动传感器109。具体地，如图3所示，所述封堵件106中部设有通孔，所述防转件113上设有螺纹安装孔，所述振动传感器109螺纹连接于所述防转件113地螺纹安装孔上。振动传感器109实时检测每次吸排液阀芯1032动作时泵头体101的振动信号，根据振动信号计算加速度频谱曲线，当振动频谱与正常状态发生较大偏离时，可以判断该组吸排液阀芯1032出现了故障，报警提醒操作人员进行拆解排查。
本发明的上述实施方式中，采用压力传感器107、磁致伸缩传感器108 以及振动传感器109集成在泵头总成的方式，最终实现对泵站的冲击力、位移行程、振动监测，为泵站运行状况提供全新的监测方案、分析手段。
<液力转化组件200>
如图1所示，所述液力转化组件200包括液力转换壳体201以及滑动连接于所述液力转换壳体201内的柱塞202。
其中，所述液力转换壳体201固定连接于所述泵头体101的所述第一通孔1015处外侧；所述柱塞202一端与所述曲轴箱总成300连接，另一端插接于所述第一通孔1015内。
在液力转化组件200的外侧还设置有中箱203，所述曲轴箱总成300与所述泵头总成100通过中箱203联结，所述柱塞202于所述曲轴箱总成300连接的部分位于所述中箱203内侧，以避免此部分裸露在外侧。
<曲轴箱总成300>
如图1所示，所述曲轴箱总成300包括：曲轴箱体301以及位于曲轴箱体301内的至少一级齿轮副以及曲柄滑块机构；所述齿轮副的输入齿轮轴302用于与所述主驱动电机的输出轴连接；所述曲柄滑块机构的曲轴304连接于所述齿轮副的输出齿轮303上，所述曲柄滑块机构的滑块305用于与所述柱塞202连接。
<曲轴箱总成300与所述液力转化组件200的连接方式>
如图4所示，所述曲轴箱总成300的所述滑块305的端部设有安装孔，所述安装孔内嵌设有加固套306；所述柱塞202螺纹连接于所述加固套306上。由于柱塞202通常采用陶瓷材料制造，而滑块305则采用不锈钢材料制造，通过在所述滑块305与所述柱塞202的连接端设置加固套306解决柱塞202和滑块305通过螺纹直联柱塞202造成螺纹脱扣、断裂的故障，提高柱塞202与滑块305的联结强度，利于柱塞202的更换维护。具体地，所述加固套为钢制螺丝套，其内外分别设置螺纹。
由于柱塞202通常采用陶瓷材料制造，而滑块305则采用不锈钢材料制造，两者直接接触容易出现一损俱损的问题，在所述滑块305与所述柱 塞202的端面之间设有防护片400，所述防护片400采用橡胶等较陶瓷材料及不锈钢材料较软的材料制成，其挤压于两者之间，防止柱塞202损坏连累损伤到所述滑块305。
<柱塞泵A的工作过程>
上述柱塞泵A工作运转时，主驱动电机输入的旋转运动带动输入齿轮轴302、曲轴304上的输出齿轮303作一级减速运动后，同时，曲轴304带动连杆转动，转换成滑块305和柱塞202的往复直线运动，致使泵头总成100中的容腔体积发生变化，滑块305在最远端时，柱塞202引起容腔体积增大形成负压，吸液阀芯1022开启、排液阀芯1032关闭，此过程完成吸液；滑块305运动至最近端时，柱塞202引起容腔体积减小从而压缩吸入的液体，形成高压液，吸液阀芯1022关闭、排液阀芯1032打开排出高压液、此过程完成排液，高压液压力的控制通过安装在泵头两侧的卸载阀110和安全阀111来实现，上述两个过程是五组柱塞202交互动态的完成，其中液力转换系统中良好的密封性能使液体不致外泄以及泵头总成100中吸液阀芯1022与吸液阀座1021的锥面密封、排液阀芯1032与排液阀座1031的锥面密封，共同保证了五柱塞泵A的高容积效率，使排出的液体流量达到1200L/min以上，从而满足超大采高综采工作面液压系统的实际供液需求。
<柱塞泵A的安装及拆卸步骤>
本发明中的乳化液柱塞泵的泵头总成的装配步骤如下：
步骤1：将吸液阀组件102装配5组待用，装配前对吸液阀座1021、吸液阀芯1022进行研磨，并进行密封试验。
步骤2：将排液阀座1031的密封圈沟槽内套入2个O型圈挡圈、1个O型圈，装配方法为O型圈每侧各安装一个O型圈挡圈，以上排液阀组件103装配5组，装配完成后在O型圈表面涂抹润滑脂，待用。
步骤3：将组合密封圈套入防转件113的密封圈沟槽内，以上组件需装配5组，装配完成后在组件密封圈表面涂抹润滑脂，待用。
步骤4：将组合密封圈套在排液阀芯止阀件1033的密封圈沟槽内，以上组件需装配5组，装配完成后在组件密封圈表面涂抹润滑脂，待用。
步骤5：将步骤1完成的吸液阀组件102通过泵头体101的上侧开口处放入吸液阀组件102，并用铜棒轻轻敲击，使其与泵头体101紧密贴合即可。
步骤6：将隔套104通过泵头体101的上侧开口处放置在步骤5已安装好的吸液阀组件102上，在第二通孔1016处安装防转件113及封堵件106，防转件113插入隔套104的小孔，对隔套104进行周向定位，然后应用封堵件106压紧。
步骤7：将步骤2完成的排液阀座1031通过步骤6完成的装配体装配到隔套104上端，并用铜棒轻轻敲击，使其与隔套104贴合即可。
步骤8：将排液阀芯1032、第二复位弹簧1034装配到步骤7完成装配体内。
步骤9：将步骤4完成的排液阀芯止阀件1033装配到步骤8完成的装配体内，并用铜棒轻轻敲击排液阀芯止阀件1033，使其与排液阀座1031贴合即可，然后用排液腔封堵盖105压紧，则完成了泵头总成100的安装。
当需要拆卸吸排液阀组件时，采用如下步骤：
步骤1:将所述排液腔封堵盖105拆除；
步骤2:将所述排液组件103依次从所述泵头体101的上侧拆卸；
步骤3：将封堵件106及防转件113依次拆卸；
步骤4：沿所述第一通孔1015和第二通孔1016将柱塞202从滑块305侧拆卸；
步骤5：再将隔套104及吸液阀组件102依次从所述泵头体101的上侧拆卸；
至此，即完成了泵头体101内侧的各个阀组的拆卸，本方案中，从泵头体101的一侧即可完成各个零部件的拆装，方便维修。
如图10所示为本发明提供的一种五柱塞乳化液泵站的具体实施方式， 其包括，底座，以及位于底座上的柱塞泵A、主驱动电机2；其中，所述主驱动电机2用于驱动所述柱塞泵A，所述柱塞泵A采用上述具体实施方式的柱塞泵A，在此不再赘述。
该乳化液泵站还包括润滑系统，所述润滑系统用于对所述柱塞泵A的所述曲轴箱总成300内的零部件例如曲轴、齿轮、连杆、轴承、滑块等进行润滑，为了使所述润滑油在运转过程中得到充分冷却，所述润滑系统包括润滑油供给装置以及冷却装置。
所述润滑油供给装置包括润滑油泵5、润滑油泵驱动电机4以及润滑油箱(图中未示出)；
所述冷却装置包括：
冷却箱3，所述冷却箱3的进口连通所述润滑油泵5，所述冷却箱3的出口连通所述曲轴箱总成300中曲轴、齿轮、连杆、轴承、滑块等零部件的各个润滑点；
位于冷却箱3内的乳化液管路(图中未示出)，所述乳化液管路与所述泵头总成100连通，所述乳化液管路用于冷却所述冷却箱3内的润滑油。
本发明的泵站采用外置于柱塞泵A的冷却方式，其可以选用功率更小的润滑油泵驱动电机4，以解决现有设置在吸液盒内的冷却器油液流阻大、冷却效率低问题，实施成本低，电机外形尺寸小更利于狭小空间的安装维护。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。

Claims (15)

  1. 一种柱塞泵，其包括，
    曲轴箱总成，用于与主驱动电机连接以传递动力；
    泵头总成，所述泵头总成用于泵送乳化液；
    以及连接于曲轴箱总成与所述泵头总成之间的液力转化组件，所述液力转化组件用于将所述曲轴箱的机械动力转换为泵头总成的液力变化；其特征在于，所述泵头总成包括：
    泵头体，所述泵头体内具有腔体；
    位于所述腔体内的吸液阀组件、排液阀组件以及将所述吸液阀组件与所述排液阀组件隔离的隔套；
    其中，所述腔体包括：用于安装所述吸液阀组件的吸液阀座安装部，用于安装所述隔套的隔套安装部，用于安装所述排液阀组件的排液阀座安装部以及位于所述吸液阀座安装部下侧的吸液腔，所述吸液腔通过管路与乳化液供给装置连通；
    所述排液阀座安装部与所述隔套安装部之间通过阶梯面过渡，且所述排液阀座安装部的孔径大于所述隔套安装部的孔径，所述隔套安装部的孔径大于或等于所述吸液阀座安装部的孔径。
  2. 根据权利要求1所述的柱塞泵，其特征在于：所述吸液阀组件包括：
    吸液阀座，所述吸液阀座设有第一配合面；
    吸液阀芯，所述吸液阀芯滑动连接于所述吸液阀座上，所述吸液阀芯上设有与所述第一配合面配合的第二配合面；其中，所述第一配合面与所述第二配合面成型为圆锥面。
  3. 根据权利要求2所述的柱塞泵，其特征在于：
    所述吸液阀组件还包括位于所述吸液阀座下侧的复位弹簧安装座，所述复位弹簧安装座套设于所述阀芯上；
    以及位于所述吸液阀座与所述复位弹簧安装座之间的第一复位弹簧。
  4. 根据权利要求3所述的柱塞泵，其特征在于：所述吸液阀座包括：
    外套体，所述外套体的外壁与所述吸液阀座安装部密封连接，所述外套体的内壁的端部设有所述第一配合面；
    内套体，所述内套体与所述外套体通过过渡臂连接；所述内套体的内壁与所述吸液阀芯滑动连接。
  5. 根据权利要求4所述的柱塞泵，其特征在于：所述吸液阀芯包括：
    阀芯头，所述阀芯头设有所述第二配合面；
    阀芯杆，所述阀芯杆滑动连接于所述吸液阀座的内套体内。
  6. 根据权利要求2所述的柱塞泵，其特征在于：
    所述吸液阀座底部设有用于安装压力传感器的压力传感器安装部，所述压力传感器用于检测所述吸液阀芯移动时的冲击力。
  7. 根据权利要求1所述的柱塞泵，其特征在于：所述排液阀组件包括：
    排液阀座，所述排液阀座设有第三配合面；
    排液阀芯，所述排液阀芯滑动连接于所述排液阀座上，所述排液阀芯上设有与所述第三配合面配合的第四配合面；其中，所述第三配合面与所述第四配合面成型为圆锥面；
    排液阀芯止阀件，所述排液阀芯止阀件设置于所述排液阀座与所述泵头体的上端面之间；
    以及第二复位弹簧，所述第二复位弹簧一端套设于所述排液阀芯，另一端抵靠在所述排液阀芯止阀件上。
  8. 根据权利要求7所述的柱塞泵，其特征在于：
    所述泵头体的上侧设有用于封堵所述腔体上侧开口的排液腔封堵盖，所述排液腔封堵盖压靠于所述排液阀芯止阀件上并与所述泵头体通过螺钉连接。
  9. 根据权利要求8所述的柱塞泵，其特征在于：
    所述排液腔封堵盖以及所述排液阀芯止阀件上设有上下互相连通的通孔，所述排液阀芯上设有螺纹孔；所述排液腔封堵盖上安装有磁致伸缩 传感器，所述磁致伸缩传感器的伸缩杆与所述排液阀芯固定连接。
  10. 根据权利要求1所述的柱塞泵，其特征在于：
    所述泵头体在所述隔套安装部的区域上沿径向成型有同轴的第一通孔和第二通孔，所述第一通孔用于与所述液力转化组件连通；所述第二通孔内设有用于防止所述隔套转动的防转件以及用于固定所述防转件的封堵件。
  11. 根据权利要求10所述的柱塞泵，其特征在于：
    所述封堵件中部设有通孔，所述防转件上设有用于安装振动传感器的安装孔，所述振动传感器用于检测所述泵头体的振动。
  12. 根据权利要求10所述的柱塞泵，其特征在于：
    所述液力转化组件包括：
    液力转换壳体，所述液力转换壳体固定连接于所述泵头体的所述第一通孔处外侧；
    以及滑动连接于所述液力转换壳体内的柱塞，所述柱塞一端与所述曲轴箱总成连接，另一端插接于所述第一通孔内。
  13. 根据权利要求12所述的柱塞泵，其特征在于：所述曲轴箱总成包括：
    曲轴箱体以及位于曲轴箱体内的至少一级齿轮副以及曲柄滑块机构；
    所述齿轮副的输入齿轮用于与所述主驱动电机的输出轴连接；所述曲柄滑块机构的曲轴连接于所述齿轮副的输出齿轮上，所述曲柄滑块机构的滑块用于与所述柱塞连接，
    其中，所述滑块的端部设有安装孔，所述安装孔内嵌设有加固套；所述柱塞螺纹连接于所述加固套上；所述滑块与所述柱塞的端面之间设有防护片，所述防护片挤压于两者之间。
  14. 一种泵站，其特征在于：其包括，
    底座以及位于底座上的柱塞泵、主驱动电机；
    其中，所述主驱动电机用于驱动所述柱塞泵，所述柱塞泵采用权利要 求1-13任一所述的柱塞泵。
  15. 根据权利要求14所述的泵站，其特征在于：还包括润滑系统，所述润滑系统用于对所述曲轴箱总成内的零部件进行润滑；所述润滑系统包括：
    润滑油供给装置，所述润滑油供给装置包括润滑油泵、润滑油泵驱动电机以及润滑油箱；
    冷却装置，所述冷却装置包括：
    冷却箱，所述冷却箱的进口连通所述润滑油泵，所述冷却箱的出口连通所述曲轴箱总成的各个润滑点；
    位于冷却箱内的乳化液管路，所述乳化液管路与所述泵头总成连通，所述乳化液管路用于冷却所述冷却箱内的润滑油。
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