WO2022016910A1 - 一种乳化液柱塞泵 - Google Patents

一种乳化液柱塞泵 Download PDF

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Publication number
WO2022016910A1
WO2022016910A1 PCT/CN2021/086359 CN2021086359W WO2022016910A1 WO 2022016910 A1 WO2022016910 A1 WO 2022016910A1 CN 2021086359 W CN2021086359 W CN 2021086359W WO 2022016910 A1 WO2022016910 A1 WO 2022016910A1
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WO
WIPO (PCT)
Prior art keywords
assembly
suction valve
valve core
seat
valve seat
Prior art date
Application number
PCT/CN2021/086359
Other languages
English (en)
French (fr)
Inventor
王初亮
韦文术
李然
刘昊
叶健
吴梦雨
郭新伟
刘波
王剑强
陈荣明
王大龙
陈敬斌
赵康康
于远征
张健恺
高娜
张晶晶
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
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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 AU2021312669A priority Critical patent/AU2021312669A1/en
Publication of WO2022016910A1 publication Critical patent/WO2022016910A1/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
    • 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
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the invention relates to an emulsion pump, in particular to an emulsion plunger pump.
  • Emulsion plunger pump station is an essential and important equipment for fully mechanized coal mining face, providing hydraulic power for hydraulic support of working face, and it is the heart of the whole working face hydraulic system.
  • the demand for emulsion plunger pump stations Reliability puts forward higher requirements.
  • the emulsion plunger pump usually adopts the five-plunger structure or seven-plunger structure of the large-flow emulsion plunger pump, which has the advantages of high transmission efficiency, stable support, small axial force component of the gear pair, and compact structure. widely used.
  • the suction valve core assembly and the liquid discharge valve assembly in the pump head body of the plunger pump are assembled from the upper and lower sides of the pump head body, respectively.
  • the valve seat and the discharge valve core need to be removed, the suction pipe, suction box and other parts need to be removed, which leads to poor operability, long maintenance time and high maintenance cost; in addition, in the existing emulsion plunger pump, it is usually
  • the lower part of the valve core is designed with the return spring mounting seat of the suction valve core.
  • the mass of the discharge valve core is increased, and the inertial force is large.
  • the high-pressure liquid flow has an impact on the suction valve core and the discharge valve core.
  • the side force is relatively large, and when the valve core is raised or lowered, eccentric wear occurs on the guide part, and then the sealing ring surface generates eccentric wear, which affects the service life.
  • the technical problem to be solved by the present invention is that the structure of the existing emulsion plunger pump is unreasonable, which leads to the problem of time-consuming and laborious disassembly and assembly and eccentric wear of the valve core.
  • the present invention provides the following technical solutions:
  • An emulsion plunger pump comprising: a crankcase assembly for connecting with a main drive motor to transmit power; a pump head assembly for pumping emulsion; and connecting to the crankcase A hydraulic conversion assembly between the assembly and 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 It includes: a pump head body, a suction valve assembly, a discharge valve assembly and a spacer separating the suction valve assembly and the discharge valve assembly in the pump head body; wherein, the pump head body includes a suction valve seat mounting portion for installing the suction valve assembly, a spacer mounting portion for installing the spacer, and a discharge valve seat mounting portion for installing the liquid discharge valve assembly; the drain valve
  • the hole diameter of the liquid valve seat mounting portion is larger than that of the spacer mounting portion, and the hole diameter of the spacer mounting portion is larger than the hole diameter of the liquid suction valve seat mounting portion.
  • 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.
  • the suction valve seat includes: an outer casing, the outer wall of the outer casing is sealingly connected with the installation part of the suction valve seat, and the end of the inner wall of the outer casing is provided with the a first mating surface; an inner sleeve body, the inner sleeve body is connected with the outer sleeve 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 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;
  • the drain valve core stop valve is located between the drain cavity sealing cover that blocks the opening on the upper side of the pump head body and the drain valve seat, and the drain valve core
  • a sealing groove is formed on the outer peripheral surface of the valve stopper, and the drain valve core valve stopper and the pump head body are radially sealed and connected through a sealing ring arranged in the sealing groove; and a second return spring, One end of the second return spring is sleeved on the drain valve core, and the other end is abutted on the stop valve member of the drain valve core.
  • the pump head body is radially formed with a coaxial first through hole and a second through hole on the area of the spacer installation portion, and the first through hole is used for connecting with the spacer.
  • the hydraulic conversion components are in communication; an anti-rotation member for preventing the rotation of the spacer sleeve and a blocking member for fixing the anti-rotation member are arranged in the second through hole.
  • the hydraulic conversion assembly includes: a packing seat assembly, the packing seat assembly is located outside the first through hole of the pump head body; and is slidably connected to the disk A plunger in the base assembly, one end of the plunger is connected with the crankcase assembly, and the other end extends into the first through hole.
  • the crankcase assembly includes: a crankcase body and at least a first-stage gear pair and a crank-slider mechanism located in the crankcase body; the 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 extends out of the crankcase for connecting with the plunger;
  • the sliding block is sleeved with a sealing box assembly for sealing the crankcase; the distance between the outer end surface of the sealing box assembly and the outer end surface of the packing seat assembly is greater than the outer end surface of the packing seat assembly The distance between the end face and the end face of the pump head body.
  • the sealing box assembly includes: a sealing box mounting plate, the sealing box mounting plate includes a connecting plate part connected to the end face of the crankcase body and a connecting plate part that is inserted into the sliding block and the The sealing sleeve part between the openings of the crankcase body; wherein, the connecting plate part is connected with the crankcase through bolts embedded in the plate surface of the connecting plate part; the sealing sleeve is sealed
  • the ring is sealingly connected with the crankcase; an oil seal and an oil seal pressure ring; the oil seal and the oil seal pressure ring are located in the sealing sleeve part, and the oil seal pressure ring is threadedly connected with the sealing sleeve part.
  • the hole diameter of the mounting portion of the discharge valve seat is larger than the hole diameter of the mounting portion of the spacer, and the hole diameter of the mounting portion of the spacer is larger than the hole diameter of the mounting portion of the suction valve seat; thus, the suction valve
  • the core assembly, the spacer and the discharge valve assembly can be installed through one side of the pump head body.
  • the disassembly and assembly are convenient and time-consuming; at the same time, the suction valve assembly and the discharge valve assembly pass through The spacer is isolated, and the suction valve assembly and the discharge valve assembly are independently set up, which can avoid the impact of the liquid flow on the suction valve core and the discharge valve core during the suction and discharge, especially the high pressure discharge process, and there is no single side Due to the problem of force, the guide part will not have eccentric wear during the opening or closing process of the valve core, and the sealing ring surface will not have eccentric wear, and the service life will be longer.
  • FIG. 1 is a perspective view of a specific embodiment of an emulsion plunger pump provided by the present invention
  • FIG. 2 is a cross-sectional view of a specific embodiment of the emulsion plunger pump provided by the present invention
  • FIG. 3 is a cross-sectional view of the pump head assembly of the emulsion plunger pump provided by the present invention
  • FIG. 4 is a cross-sectional view of a pump head body in the emulsion plunger pump provided by the present invention
  • FIG. 5 is a schematic structural diagram of a suction valve seat in the emulsion plunger pump provided by the present invention.
  • FIG. 6 is a schematic structural diagram of a suction valve core in the emulsion plunger pump provided by the present invention.
  • FIG. 7 is a schematic structural diagram of a drain valve seat in the emulsion plunger pump provided by the present invention.
  • FIG. 8 is a schematic structural diagram of a drain valve core in the emulsion plunger pump provided by the present invention.
  • Fig. 9 is the schematic diagram of the stop valve member of the drain valve core in the emulsion plunger pump provided by the present invention.
  • FIG. 10 is a schematic diagram of a sealing box mounting plate in the emulsion plunger pump provided by the present invention.
  • FIG. 11 is a schematic diagram of the sealing box assembly in the emulsion plunger pump provided by the present invention.
  • FIGs 1 and 2 show specific embodiments of an emulsion plunger pump disclosed in the present invention.
  • the emulsion plunger pump in this embodiment is a five-plunger emulsion plunger pump.
  • the emulsion plunger pump 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 of 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 crankcase assembly 300.
  • the pump head assembly 100 is connected.
  • the pump head assembly 100 includes a pump head body 101 and a suction box 108 located on the lower side of the pump head body 101 ; wherein the suction box 108 passes through the pump head body 101 Bolt detachable connection.
  • the inside of the pump head body 101 is provided with a suction valve assembly 102 , a discharge valve assembly 103 , and a spacer 104 separating the suction valve assembly 102 from the discharge valve assembly 103 . Since 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 arranged independently in structure, which can be used during suction and discharge, especially during high-pressure discharge. , to avoid the impact of the liquid flow on the suction valve core and the discharge valve core, there is no unilateral force problem, the guide part will not be eccentric during the opening or closing process of the valve core, and the sealing ring surface will not be eccentric. , longer life.
  • the pump head body 101 is a cavity structure with upper and lower openings, and the lower opening 1011 of the pump head body 101 communicates with the liquid suction box 108 .
  • the cavity includes: a suction valve seat mounting portion 1012 for mounting the suction valve assembly 102 , a spacer mounting portion 1013 for mounting the spacer 104 , and for mounting the drain valve assembly 103 The drain valve seat mounting part 1014.
  • a stepped surface transitions between the drain valve seat mounting portion 1014 and the spacer mounting portion 1013 , and the spacer mounting portion 1013 is connected to the suction valve.
  • the seat mounting parts 1012 are transitioned through a stepped surface, the hole diameter B of the drain valve seat mounting part 1014 is larger than the hole diameter C of the spacer mounting part 1013, and the hole diameter C of the spacer mounting part 1013 is larger than the suction valve seat The hole diameter D of the mounting portion 1012 .
  • the suction valve assembly 102 when the suction valve assembly 102 , the discharge valve assembly 103 and the spacer 104 are installed, the suction valve assembly 102 can easily pass through the discharge cavity capping hole 1017 , the discharge cavity on the upper side of the pump head body 101 , and the The liquid valve seat installation part 1014 and the spacer sleeve installation part 1013 enter the suction valve seat installation part 1012; the spacer sleeve 104 enters the spacer sleeve installation part 1013 through the liquid discharge cavity blocking hole 1017 and the discharge valve seat installation part 1014 in sequence. , and then install the discharge valve assembly 103, so that the suction valve assembly 102, the discharge valve assembly 103 and the spacer 104 can all 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.
  • 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 under 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 plunger pump, sealing retaining rings made of polyoxymethylene are designed on both sides of the O-ring seal to prevent the O-ring seal 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.
  • 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 structure of the liquid drain blocking cover 105 is not unique.
  • the liquid drain cavity blocking cover 105 is pressed against the liquid drain valve core stop valve 1033 and is connected to the pump head body 101 .
  • threads are provided on the outer peripheral surface of the liquid discharge chamber blocking cover 105 , the upper opening of the pump head body 101 is provided as a threaded hole, and the The liquid discharge chamber blocking cover 105 is threadedly connected to the pump head body 101 .
  • 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 located between the drain cavity blocking cover 105 that blocks the upper opening of the cavity and the drain valve seat 1031 .
  • 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.
  • a sealing groove is formed on the outer peripheral surface of the plugging portion 1033-2, and the drain valve core stop valve 1033 and the pump head body 101 are radially sealed through a sealing ring disposed in the sealing groove. .
  • the drain valve core stop valve adopts an axial limit and sealing structure.
  • the drain valve core stop valve member 1033 adopts a radial seal, and does not need the drain cavity blocking cover 105. A large axial pressing force can achieve the sealing of the chamber of the pump head body.
  • 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 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 through hole 1015 is used to communicate with the hydraulic conversion assembly;
  • the second through hole 1016 is provided with an anti-rotation member 107 for preventing the rotation of the spacer 104 and a block for fixing the anti-rotation member 107 Piece 106.
  • the hydraulic conversion assembly 200 includes a packing seat assembly 201 and a plunger 202 slidably connected to the packing seat assembly 201 .
  • the packing seat assembly 201 is located outside the first through hole 1015 of the pump head body 101 and is fixedly connected to the crankcase body 301 ; one end of the plunger 202 is connected to the crankcase assembly 300 . connected, and the other end is inserted into the first through hole 1015 .
  • the crankcase assembly 300 includes: a crankcase body 301, at least one gear pair and a crank slider mechanism located in the crankcase body 301; an input gear shaft (not shown in the figure) of the gear pair shown) is used to connect with the output shaft of the main drive motor; the crankshaft 302 of the crank-slider mechanism is connected to the output gear (not shown in the figure) of the gear pair, and the crank-slider mechanism
  • the slider 303 extends out of the crankcase 301 and is connected with the plunger 202 .
  • the sliding block 303 is sleeved with a sealing box assembly for sealing the crankcase 301 ; the outer end face of the sealing box assembly and the outer end face of the packing seat assembly The distance a is greater than the distance b between the outer end face of the packing seat assembly and the end face of the pump head body.
  • the packing seat assembly can be removed from the end face of the crankshaft and the end face of the pump head body without removing the pump head body and accessories. disassemble in the space.
  • the seal box assembly includes a seal box mounting plate 305 , an oil seal 306 and an oil seal pressure ring 307 ; wherein the seal box mounting plate 305 includes: a connecting plate portion 305 - 1 connected to the end face of the crankcase 301 and The sealing sleeve part 305-2 is inserted between the sliding block 303 and the opening of the crankcase 301; wherein, the connecting plate part 305-1 is embedded in the connecting plate part 305- 1.
  • the bolts in the plate surface are connected to the crankcase body 301; the sealing sleeve 305-2 is sealedly connected to the crankcase body 301 through a sealing ring; the oil seal 306 and the oil seal pressure ring 307 are located in the sealing sleeve Inside the cylindrical portion 305-2, the oil seal pressure ring 307 is threadedly connected to the seal sleeve portion 305-2.
  • the oil seal pressure ring 307 is embedded in the sealing box mounting plate 305, and the connecting bolts between the sealing box mounting plate 305 and the crankcase 301 are selected to be embedded in the sealing box mounting plate 305.
  • the axial dimension of the entire sealing box mounting plate assembly is smaller.
  • the rotational motion input by the main drive motor drives the input gear shaft and the output gear on the crankshaft 302 to perform a first-stage deceleration motion.
  • 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 causes the volume of the cavity to increase to form a negative pressure, and the suction valve core 1022 opens.
  • the discharge valve core 1032 is closed, and the liquid suction is completed in this process; when the slider 303 moves to the most proximal end, the plunger 202 causes the volume of the cavity to decrease, thereby compressing the suctioned liquid to form high-pressure liquid, and the suction valve core 1022 is closed and discharged.
  • the liquid valve core 1032 is opened to discharge the high-pressure liquid, and this process completes the liquid discharge.
  • the above two processes are completed by the interaction and dynamic of the five groups of plungers 202 .
  • the assembly of the emulsion plunger pump in the present invention can be realized according to the following steps.
  • 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 part 107.
  • 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 Assemble 5 sets of packing seat components for use. After the assembly is completed, apply grease to the inner hole surface of the components.
  • Step 6 Assemble the sealing box components in 5 sets for use. After the assembly is completed, apply grease to the inner hole surface of the components.
  • Step 7 Put the suction valve assembly 102 completed in step 1 into the suction valve assembly 102 of the suction valve installation part through the cover hole 1017 of the discharge cavity of the pump head body, and tap lightly with a copper rod to make it
  • the pump head body 101 only needs to be in close contact with each other.
  • Step 8 Place the spacer 104 on the suction valve assembly 102 installed in Step 7 through the cover hole 1017 of the pump head body, and install the anti-rotation member 107 and the blocking member at the second through hole 1016 106, the anti-rotation member 107 is inserted into the small hole of the spacer sleeve 104, the spacer sleeve 104 is positioned in the circumferential direction, and then the blocking member 106 is used for pressing.
  • Step 9 Assemble the drain valve seat 1031 completed in step 2 to the upper end of the spacer 104 through the assembly completed in step 8, and tap lightly with a copper rod to make it fit with the spacer 104.
  • Step 10 Assemble the drain valve core 1032 and the second return spring 1034 from the drain cavity plug hole 1017 of the pump head body into the assembly completed in step 9.
  • Step 11 Assemble the drain valve core stop valve 1033 completed in step 4 into the assembly completed in step 10, and tap the drain valve core stop valve 1033 with a copper rod to make it stick to the drain valve seat 1031. It can be closed, and then use the sealing cover 105 of the drainage chamber to press down.
  • Step 12 Install the suction box 108 on the pump head body 101 completed in Step 11 by screws to form the pump head assembly 100 .
  • Step 13 Assemble the seal box assembly to the crankcase assembly 300 at the power end.
  • Step 14 Install the packing seat assembly 201 on the crankcase assembly 300 at the power end, and use screws to preliminarily connect without tightening.
  • Step 15 Insert the plunger 202 into the packing seat assembly 201 preliminarily assembled in Step 14, and tighten the connecting bolts of the ceramic plunger 202.
  • Step 16 Assemble the pump head assembly 100 completed in step 12 to the power end assembly completed in step 15, and tighten the connecting screws.
  • Step 17 Tighten the screws that were not tightened in Step 14. At this point, the installation is complete.
  • Step 1 remove the drain chamber sealing cover 105
  • Step 2 Disassemble the drain valve assembly 103 from the side of the drain chamber plugging hole 1017 in turn;
  • Step 3 Disassemble the blocking member 106 and the anti-rotation member 107 in sequence
  • Step 4 Remove the plunger 202 from the slider 303 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 side of the cover hole 1017 of the drain chamber;
  • Step 1 Disassemble the blocking member 106 and the anti-rotation member 107 in sequence
  • Step 2 Remove the plunger 202 from the slider 303 along the first through hole 1015 and the second through hole 1016;
  • Step 3 Drive the crankcase to shrink the end face of the slider 303 to the end face of the sealing box assembly, and the packing seat assembly can be along the outer end face of the sealing box assembly and the packing seat assembly. Remove the gap between the outer end faces.
  • the above-mentioned packing seat assembly can be completed without disassembling the suction and discharge valve in the pump head body 101, and the above-mentioned structure greatly reduces the maintenance difficulty of the emulsion plunger pump.

Abstract

一种乳化液柱塞泵，包括：泵头总成（100），泵头总成（100）包括：泵头体（101）以及位于泵头体（101）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，泵头体（101）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）以及用于安装排液阀组件（103）的排液阀座安装部（1014）；排液阀座安装部（1014）与隔套安装部（1013）之间通过阶梯面过渡，隔套安装部（1013）与吸液阀座安装部（1012）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）的孔径大于吸液阀座安装部（1012）的孔径。这种柱塞泵便于拆装和维护。

Description

一种乳化液柱塞泵
本申请要求2020年7月23日提交中国专利局、申请号为202010718058.5、发明名称为“一种乳化液柱塞泵”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
本发明涉及一种乳化液泵，尤其涉及一种乳化液柱塞泵。
背景技术
乳化液柱塞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，对乳化液柱塞泵站的可靠性提出了更高的要求。
目前，乳化液柱塞泵通常采用大流量乳化液柱塞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上下两侧装配，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、吸液盒等零部件，可操作性差，维修时间长、维修成本高；另外，现有乳化液柱塞泵中，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。
发明内容
本发明要解决的技术问题是现有乳化液柱塞泵结构不合理导致其拆装费时费力以及阀芯偏磨的问题。
针对上述技术问题，本发明提供如下技术方案：
一种乳化液柱塞泵，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：泵头体以及位于所述泵头体内的吸液阀组件、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，所述泵头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以及用于安装所述排液阀组件的排液阀座安装部；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所述吸液阀座安装部的孔径。
本发明的部分实施方式中，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。
本发明的部分实施方式中，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。
本发明的部分实施方式中，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。
本发明的部分实施方式中，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。
本发明的部分实施方式中，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位于封堵所述泵头体上侧开口的排液腔封堵盖与所述排液阀座之间，所述排液阀芯止阀件的外周面上成型有密封槽，所述排液阀芯止阀件与所述泵头体通过设置于所述密封槽内的密封圈实现径向密封连接；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。
本发明的部分实施方式中，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换组件连通；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。
本发明的部分实施方式中，所述液力转换组件包括：盘根座组件，所述盘根座组件位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盘根座组件内的柱塞，所述柱塞一端与所述曲轴箱总成连接，另一端延伸至所述第一通孔内。
本发明的部分实施方式中，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伸出所述曲轴箱体用于与所述柱塞连接；其中，所述滑块上套设有密封所述曲轴箱的密封盒组件；所述密封盒组件的外端面与所述盘根座组件的外端面之间的距离大于所述盘根座组件外端面与泵头体的端面之间的距离。
本发明的部分实施方式中，所述密封盒组件包括：密封盒安装板，所述密封盒安装板包括与所述曲轴箱体的端面连接的连接板部以及插接于所述滑块与所述曲轴箱体的开孔之间的密封套筒部；其中，所述连接板部通过内嵌于所述连接板部板面内的螺栓与所述曲轴箱连接；所述密封套筒通过密封圈与所述曲轴箱密封连接；油封以及油封压环；所述油封及油封压环位于所述密封套筒部内，所述油封压环与所述密封套筒部螺纹连接。
本发明的技术方案相对现有技术具有如下技术效果：
本发明公开的乳化液柱塞泵中，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，吸液阀组件与排液阀组件之间通过隔套隔离，吸液阀组件与排液阀组件结构独立设置，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。
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为本发明提供的乳化液柱塞泵一种具体实施方式的立体图；
图2为本发明提供的乳化液柱塞泵一种具体实施方式的剖视图；
图3为本发明提供的乳化液柱塞泵的泵头总成的剖视图；
图4为本发明提供的乳化液柱塞泵中泵头体的剖视图；
图5为本发明提供的乳化液柱塞泵中吸液阀座的结构示意图；
图6为本发明提供的乳化液柱塞泵中吸液阀芯的结构示意图；
图7为本发明提供的乳化液柱塞泵中排液阀座的结构示意图；
图8为本发明提供的乳化液柱塞泵中排液阀芯的结构示意图；
图9为本发明提供的乳化液柱塞泵中排液阀芯止阀件的示意图；
图10为本发明提供的乳化液柱塞泵中密封盒安装板的示意图；
图11为本发明提供的乳化液柱塞泵中密封盒组件的示意图。
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乳化液柱塞泵的具体实施方式，本实施方式的乳化液柱塞泵为五柱塞乳化液柱塞泵。该乳化液柱塞泵包括三大部分；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以及位于所述泵头体101下侧的吸液盒108；其中，所述吸液盒108与所述泵头体101通过螺栓可拆卸连接。所述泵头体101内侧设置吸液阀组件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。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。
其中，所述泵头体101为上下开口的腔体结构，所述泵头体101的下侧开口1011与所述吸液盒108连通。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。
为了方便各个组件的安装，如图4所示，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，所述隔套安装部1013与所述吸液阀座安装部1012之间通过阶梯面过渡，所述排液阀座安装部1014的孔径B大于所述隔套安装部1013的孔径C，所述隔套安装部1013的孔径C大于吸液阀座安装部1012的孔径D。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能够很容易地依次经过位于所述泵头体101上侧的排液腔堵盖孔1017、排液阀座安装部1014以及所述隔套安装部1013进入吸液阀座安装部1012；隔套104依次经过排液腔堵盖孔1017、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。
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。因乳化液柱塞泵液体压力较高，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。
<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。所述排液封堵盖105的结构不唯一，一种实施方式中，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；另一种实施方式中，如图3所示，所述排液腔封堵盖105的外周面上设置螺纹，所述泵头体101的上侧开口设置为螺纹孔，所述排液腔封堵盖105螺纹连接于所述泵头体101上。
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位于封堵所述腔体上侧开口的排液腔封堵盖105与所述排液阀座1031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的外周面上成型有密封槽，所述排液阀芯止阀件1033与所述泵头体101通过设置于所述密封槽内的密封圈实现径向密封连接。相比现有技术中排液阀芯止阀件采用轴向限位及密封的结构，本实施方式中排液阀芯止阀件1033采用径向密封，不需要排液腔封堵盖105的轴向较大的压紧力即可实现该泵头体腔室的密封。
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。
<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、图4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用于与所述液力转换组件连通；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107以及用于固定所述防转件107的封堵件106。
<液力转换组件200>
如图1所示，所述液力转换组件200包括盘根座组件201以及滑动连接于所述盘根座组件201内的柱塞202。
其中，所述盘根座组件201位于所述泵头体101的所述第一通孔1015处外侧并固定连接于曲轴箱体301上；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。
<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(图中未示出)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302连接于所述齿轮副的输出齿轮(图中未示出)上，所述曲柄滑 块机构的滑块303伸出所述曲轴箱体301并与所述柱塞202连接。
其中，如图2所示，所述滑块303上套设有密封所述曲轴箱体301的密封盒组件；所述密封盒组件的外端面与所述盘根座组件的外端面之间的距离a大于所述盘根座组件外端面与泵头体的端面之间的距离b。
这样，在所述柱塞202从所述泵头体101侧被拆除后，所述盘根座组件可在不拆卸泵头体及附件的情况下从曲轴端面与泵头体的端面之间的空隙内进行拆卸。
具体地，密封盒组件包括密封盒安装板305、油封306以及油封压环307；其中，所述密封盒安装板305包括：与所述曲轴箱体301的端面连接的连接板部305-1以及插接于所述滑块303与所述曲轴箱体301的开孔之间的密封套筒部305-2；其中，所述连接板部305-1通过内嵌于所述连接板部305-1板面内的螺栓与所述曲轴箱体301连接；所述密封套筒305-2通过密封圈与所述曲轴箱体301密封连接；所述油封306及油封压环307位于所述密封套筒部305-2内，所述油封压环307与所述密封套筒部305-2螺纹连接。
可见，本发明的上述实施方式中，油封压环307嵌设于所述密封盒安装板305内部，且密封盒安装板305与曲轴箱体301的连接螺栓选择嵌设于密封盒安装板305的板面内，使得整个密封盒安装板组件的轴向尺寸较小，相比现有技术，上述密封盒组件的结构使所述密封盒组件的外端面与所述盘根座组件的外端面之间的距离a增大。使盘根座组件易于拆装。
<乳化液柱塞泵的工作过程>
上述乳化液柱塞泵工作运转时，主驱动电机输入的旋转运动带动输入齿轮轴、曲轴302上的输出齿轮作一级减速运动后，同时，曲轴302带动连杆转动，转换成滑块303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303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303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，上述两个过程是五组柱塞202交互动态的完成。
<乳化液柱塞泵的安装及拆卸步骤>
本发明中的乳化液柱塞泵的装配按如下步骤即可实现。
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107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：将盘根座组件装配5组待用，装配完成后在组件内孔表面涂抹润滑脂。
步骤6：将密封盒组件装配5组待用，装配完成后在组件内孔表面涂抹润滑脂。
步骤7：将步骤1完成的吸液阀组件102通过泵头体排液腔堵盖孔1017处放入吸液阀安装部的吸液阀组件102，并用铜棒轻轻敲击，使其与泵头体101紧密贴合即可。
步骤8：将隔套104通过泵头体排液腔堵盖孔1017处放置在步骤7已安装好的吸液阀组件102上，在第二通孔1016处安装防转件107及封堵件106，防转件107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9：将步骤2完成的排液阀座1031通过步骤8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10：将排液阀芯1032、第二复位弹簧1034从泵头体排液腔堵盖孔1017装配到步骤9完成装配体内。
步骤11：将步骤4完成的排液阀芯止阀件1033装配到步骤10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。
步骤12：将吸液盒108通过螺钉安装到步骤11完成的泵头体101上，形成泵头总成100。
步骤13：将密封盒组件装配到动力端的曲轴箱总成300上。
步骤14：将盘根座组件201安装到动力端的曲轴箱总成300上，并用螺钉初步连接，不用打紧。
步骤15：将柱塞202插入步骤14初步装配的盘根座组件201内，并打紧陶瓷柱塞202的连接螺栓。
步骤16：将步骤12完成的泵头总成100装配到步骤15完成的动力端装配体上，并打紧连接螺钉。
步骤17:打紧步骤14未打紧的螺钉。至此，安装完毕。
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:将所述排液阀组件103依次从排液腔堵盖孔1017侧拆卸；
步骤3：将封堵件106及防转件107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303侧拆卸；
步骤5：再将隔套104及吸液阀组件102从排液腔堵盖孔1017侧拆卸；
至此，即完成了泵头体内侧的各个阀组的拆卸，本方案中，不需要拆卸吸液盒108即可完成泵头体的拆装，方便维修。
当需要拆卸盘根座组件201时，采用如下步骤：
步骤1：将封堵件106及防转件107依次拆卸；
步骤2：沿所述第一通孔1015和第二通孔1016将柱塞202从滑块303侧拆卸；
步骤3：驱动所述曲轴箱使所述滑块303的端面收缩至密封盒组件的端面处，所述盘根座组件则可以沿所述密封盒组件的外端面与所述盘根座组件的外端面之间的空隙拆卸下来。
可见，上述盘根座组件可在不拆卸泵头体101内吸排液阀的情况下即可完成，上述结构大大降低了该乳化液柱塞泵的维修难度。
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 (10)

  1. 一种乳化液柱塞泵，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：
    泵头体以及位于所述泵头体内的吸液阀组件、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，所述泵头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以及用于安装所述排液阀组件的排液阀座安装部；
    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所述吸液阀座安装部的孔径。
  2. 根据权利要求1所述的乳化液柱塞泵，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所述的乳化液柱塞泵，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2所述的乳化液柱塞泵，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所述的乳化液柱塞泵，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1所述的乳化液柱塞泵，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位于封堵所述泵头体腔体上侧开口的排液腔封堵盖与所述排液阀座之间，所述排液阀芯止阀件的外周面上成型有密封槽，所述排液阀芯止阀件与所述泵头体通过设置于所述密封槽内的密封圈实现径向密封连接；
    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。
  7. 根据权利要求1所述的乳化液柱塞泵，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换组件连通；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。
  8. 根据权利要求7所述的乳化液柱塞泵，其特征在于：
    所述液力转换组件包括：
    盘根座组件，所述盘根座组件位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盘根座组件内的柱塞，所述柱塞一端与所述曲轴箱总成连接，另一端延伸至所述第一通孔内。
  9. 根据权利要求8所述的乳化液柱塞泵，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伸出所述曲轴箱体用于与所述柱塞连接；
    其中，所述滑块上套设有密封所述曲轴箱的密封盒组件；所述密封盒组件的外端面与所述盘根座组件的外端面之间的距离大于所述盘根座组件外端面与泵头体的端面之间的距离。
  10. 根据权利要求9所述的乳化液柱塞泵，其特征在于：
    所述密封盒组件包括：
    密封盒安装板，所述密封盒安装板包括与所述曲轴箱体的端面连接的连接板部以及插接于所述滑块与所述曲轴箱体的开孔之间的密封套筒部；其中，所述连接板部通过内嵌于所述连接板部板面内的螺栓与所述曲轴箱连接；所述密封套筒通过密封圈与所述曲轴箱密封连接；
    油封以及油封压环；所述油封及油封压环位于所述密封套筒部内，所述油封压环与所述密封套筒部螺纹连接。
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CN111734599A (zh) * 2020-07-23 2020-10-02 北京天地玛珂电液控制系统有限公司 一种柱塞泵及泵站
CN111734598A (zh) * 2020-07-23 2020-10-02 北京天地玛珂电液控制系统有限公司 一种乳化液柱塞泵
CN112081739A (zh) * 2020-10-09 2020-12-15 北京天地玛珂电液控制系统有限公司 一种乳化液柱塞泵及其泵头总成
CN112253446B (zh) * 2020-10-30 2022-09-16 重庆水泵厂有限责任公司 快速装拆式阀组、往复泵液力端与拆卸方法
CN113404684A (zh) * 2021-07-02 2021-09-17 北京天地玛珂电液控制系统有限公司 乳化液泵液力端和乳化液泵
WO2023272934A1 (zh) * 2021-07-02 2023-01-05 北京天玛智控科技股份有限公司 乳化液泵液力端和乳化液泵

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