WO2022073328A1 - 一种乳化液柱塞泵及其泵头总成 - Google Patents

一种乳化液柱塞泵及其泵头总成 Download PDF

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Publication number
WO2022073328A1
WO2022073328A1 PCT/CN2021/086361 CN2021086361W WO2022073328A1 WO 2022073328 A1 WO2022073328 A1 WO 2022073328A1 CN 2021086361 W CN2021086361 W CN 2021086361W WO 2022073328 A1 WO2022073328 A1 WO 2022073328A1
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WO
WIPO (PCT)
Prior art keywords
assembly
valve core
pump head
spacer
suction valve
Prior art date
Application number
PCT/CN2021/086361
Other languages
English (en)
French (fr)
Inventor
王初亮
李然
韦文术
刘昊
叶健
吴梦雨
陈荣明
刘波
Original Assignee
北京天玛智控科技股份有限公司
北京煤科天玛自动化科技有限公司
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Publication date
Application filed by 北京天玛智控科技股份有限公司, 北京煤科天玛自动化科技有限公司 filed Critical 北京天玛智控科技股份有限公司
Priority to EP21876851.3A priority Critical patent/EP4227532A1/en
Priority to US18/028,166 priority patent/US20230366394A1/en
Priority to AU2021356404A priority patent/AU2021356404A1/en
Publication of WO2022073328A1 publication Critical patent/WO2022073328A1/zh

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    • 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
    • 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
    • F04B53/103—Flat-annular type disc 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
    • 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
    • F04B53/1092—Valves; Arrangement of valves inlet and outlet valve forming one unit and one single element forming both the inlet and outlet closure member

Definitions

  • the invention relates to the field of design and manufacture of emulsion pumps, in particular to an emulsion plunger pump and a pump head assembly thereof.
  • Emulsion pump provides hydraulic power for the working face hydraulic support and is the heart of the entire working face hydraulic system.
  • Emulsion plunger pump is a device that uses emulsion or water as the medium, performs work on the emulsion through the internal structure of the crankcase, and then converts it into the hydraulic energy of the emulsion.
  • the pump head assembly of the emulsion pump has a chamber structure, and the chamber is provided with a suction valve assembly, a discharge valve assembly, a spacer, and the like.
  • the return spring mounting seat of the suction valve core is usually designed at the lower part of the discharge valve core.
  • the mass of the discharge valve core is increased, and the inertial force is large.
  • the valve core and the drain valve core produce impact, and the force on one side is relatively large.
  • the guide part wears eccentrically, and then the sealing ring surface produces eccentric wear, which affects the life.
  • the suction valve core assembly and the discharge valve assembly in the pump head body are assembled from both sides of the pump head body, so the suction valve seat, suction valve core, and discharge valve seat are replaced when the suction valve seat, suction valve core, and discharge valve seat are replaced.
  • the suction valve core is drained, it is necessary to remove the suction pipe, suction box and other parts, which has poor operability, long maintenance time and high maintenance cost.
  • the first technical problem to be solved by the present invention is the problem that the internal structure of the pump head assembly of the existing plunger pump is unreasonable, resulting in eccentric wear of the valve core and short service life.
  • the present invention provides the following technical solutions:
  • a pump head assembly of an emulsion plunger pump comprising: a pump head body, the pump head body has a hollow chamber; a suction valve assembly, a discharge valve assembly and a spacer, the suction valve assembly, The spacer assembly and the drain valve assembly are sequentially installed in the hollow chamber; wherein, the suction valve assembly includes a suction valve seat, a suction valve core and a first return spring; the suction valve The core is slidably connected to the spacer assembly, and the first return spring is located between the spacer assembly and the suction valve core; an end cover, which is detachable from one end of the pump head body A connection is used to close the hollow chamber.
  • the spacer assembly includes a spacer body and a sliding sleeve fixedly connected to the spacer body, and the suction valve core is slidably connected to the sliding sleeve.
  • the outer wall of the spacer body is provided with an anti-rotation groove
  • the pump head body is provided with a first communication hole extending in the radial direction
  • the spacer body passes through the first communication hole.
  • a communication hole is inserted into the positioning member in the anti-rotation groove for positioning.
  • the spacer body includes: an outer casing, which is in clearance fit with the inner wall of the hollow chamber; and an inner casing, which is in an interference fit with the sliding sleeve. ; Transition connecting part, the transition connecting part is used to connect the outer casing and the inner casing.
  • the suction valve seat is formed into a plate body with a liquid suction through hole in the middle, an annular groove is formed on one side of the plate body, and the outer sleeve of the spacer body is formed. The body is inserted into the annular groove.
  • the liquid suction valve core includes a valve core plug and a valve core sliding portion
  • the valve core plug is formed into a flat body larger than the liquid suction through hole
  • the valve core sliding portion It is formed as a sliding rod extending axially along the hollow chamber.
  • the liquid discharge valve assembly includes: a liquid discharge valve seat, the liquid discharge valve seat is provided with a liquid discharge through hole, and the liquid discharge through hole is provided with a first conical surface; a valve core, the liquid discharge valve core is slidably connected to the liquid discharge through hole of the liquid discharge valve seat, and the liquid discharge valve core is provided with a second conical surface matched with the first conical surface; a drain valve core stop valve, the drain valve core stop valve part is arranged between the drain valve core and the end cover; and a second return spring, one end of the second return spring is sleeved on the The drain valve core, the other end abuts on the stop valve member of the drain valve core.
  • a positioning structure is provided between the spacer body and the drain valve seat, and the positioning structure includes a positioning protrusion or a positioning groove disposed on the spacer body; and corresponding A positioning groove or a positioning protrusion arranged on the drain valve seat.
  • the inner wall of the hollow chamber is provided with a first step surface; the first step surface divides the hollow chamber into a first chamber and a second chamber, wherein the first step surface divides the hollow chamber into a first chamber and a second chamber.
  • the inner diameter of a chamber is larger than the inner diameter of the second chamber, and the suction valve assembly, the spacer and the discharge valve assembly are installed in the first chamber.
  • the invention also discloses an emulsion plunger pump, which comprises the above pump head assembly.
  • the suction valve core is slidably connected to the spacer assembly.
  • the suction valve core is reset, it is not affected by the action of the discharge valve core, and the suction valve core closes the valve reliably.
  • the suction valve core is slidably connected to the spacer assembly and is disposed on the side of the suction valve seat away from the suction box assembly, the impact on suction is smaller and the service life is longer.
  • the cooperation between the suction valve seat of the suction valve assembly and the suction valve core adopts the mode of plane matching, and the discharge valve assembly 103 is discharged.
  • the cooperation between the liquid valve core and the discharge valve seat adopts the method of conical surface matching, which can make the life of the discharge valve assembly and the suction valve assembly equal, and can be repaired and replaced at the same time, avoiding the use of the same structure for the two parts. When replacing, the usage status of each part is different, which leads to the problem of wasting parts.
  • the inner wall of the hollow chamber is provided with a first step, and the first step divides the hollow chamber into a first chamber and a second chamber.
  • the discharge valve assembly, the spacer assembly and the suction valve assembly are all installed through the discharge side of the hollow chamber.
  • the oil pipeline, etc. can be repaired to the pump head body.
  • FIG. 1 is a schematic structural diagram of a specific embodiment of a pump head assembly of an emulsion plunger pump of the present invention
  • FIG. 2 is a schematic structural diagram of a specific embodiment of the suction valve seat of the present invention.
  • FIG. 3 is a schematic structural diagram of a specific embodiment of the suction valve core of the present invention.
  • FIG. 4 is a schematic structural diagram of a specific embodiment of the drain valve seat of the present invention.
  • Fig. 5 is another structural schematic diagram of a specific embodiment of the drain valve seat of the present invention.
  • FIG. 6 is a schematic structural diagram of a specific embodiment of the drain valve core of the present invention.
  • FIG. 7 is a schematic structural diagram of a specific embodiment of the spacer assembly of the present invention.
  • FIG. 8 is a schematic structural diagram of a specific embodiment of the pump head body of the present invention.
  • FIG. 1 shows a specific embodiment of a pump head assembly of an emulsion plunger pump disclosed in the present invention.
  • the pump head assembly 100 includes a pump head body 101, and the pump head body 101 has a hollow chamber. 101a, the suction valve assembly 102, the spacer assembly 104 and the discharge valve assembly 103 are sequentially installed in the hollow chamber 101a from bottom to top, and also include an end cap 105 for closing the hollow chamber 101a, so The end cover 105 is detachably connected to the upper end of the pump head body 101 .
  • the suction valve assembly 102 includes a suction valve seat 1021, a suction valve core 1022 and a first return spring 1023; the suction valve core 1022 is slidably connected to the spacer assembly 104, and the first A return spring 1023 is located between the spacer assembly 104 and the suction valve core 1022 .
  • the suction valve assembly 102 and the discharge valve assembly 103 are separated by the spacer assembly 104, and the suction valve core 1022 is slidably connected to the spacer assembly 104, the first return spring 1023 is located in the spacer assembly 104. Between the spacer assembly 104 and the liquid suction valve core 1022, the liquid suction valve core 1022 is not affected by the action of the liquid discharge valve core when the liquid suction valve core 1022 is reset, and the liquid suction valve core 1022 closes the valve reliably.
  • the suction valve core 1022 is arranged on the upper side of the suction valve seat 1021 and is slidably connected to the spacer assembly 104, it is opposite to the suction valve core 1022 arranged on the lower side of the suction valve seat 1021. Less impacted and longer life.
  • the spacer assembly 104 includes a spacer body 1041 and a sliding sleeve 1042 fixedly connected to the spacer body 1041 , and the suction valve core 1022 is slidably connected to the sliding sleeve 1042 .
  • the sliding sleeve 1042 is made of a copper sleeve with a relatively soft material, and the sliding of the liquid suction valve core 1022 relative to the copper sleeve can reduce its own wear and improve the service life of the liquid suction valve core 1022 .
  • the spacer body 1041 includes an outer casing 1041a that is clearance fit with the inner wall of the hollow chamber 101a, an inner casing 1041b that is interference fit with the sliding casing 1042, and The transition connecting portion 1041c connecting the outer casing 1041a and the inner casing 1041b.
  • the outer casing 1041a is used to isolate the suction valve assembly 102 from the discharge valve assembly 103
  • the inner casing 1041b is used to install the sliding sleeve 1042 to achieve sliding fit with the suction valve core 1022.
  • the above-mentioned spacer body 1041 adopts the structure of an inner and outer casing, so that the suction valve core 1022 can slide reliably along the inner sleeve body 1041b of the spacer body 1041, so as to prevent the liquid suction valve core 1022 from being opposed to each other in the prior art.
  • the suction valve seat 1021 shakes radially.
  • the pump head body 101 is provided with a pump head communication hole for communicating with the hydraulic conversion assembly 200
  • the spacer body 1041 is provided with a spacer sleeve communication hole corresponding to the pump head communication hole.
  • the hydraulic conversion assembly 200 extends into the hollow chamber 101a along the communication hole of the pump head and the communication hole of the spacer. Wherein, the hydraulic conversion assembly 200 is used to convert the mechanical power of the crankcase into the hydraulic change of the pump head assembly 100 .
  • the hydraulic conversion assembly 200 can only extend into the hollow chamber 101a when the communication hole of the spacer is opposite to the communication hole of the pump head. Therefore, in order to prevent the spacer body 1041 from rotating in the axial direction of the hollow chamber 101a,
  • the outer wall of the spacer body 1041 is provided with an anti-rotation groove 1041d
  • the pump head body 101 is provided with a first communication hole extending in the radial direction
  • the spacer body 1041 is inserted through the first communication hole.
  • the positioning member 106 connected to the anti-rotation groove 1041d performs positioning.
  • the positioning member 106 is specifically a positioning pin. Since the hollow chamber 101a needs to be kept in a sealed state in the working state, a sealing member is provided between the positioning member 106 and the pump head body 101 to To ensure its sealing; in another embodiment, the positioning member 106 is specifically a positioning screw, the first communication hole is specifically a threaded hole, the positioning screw is threadedly connected with the pump head body 101, and its end is inserted into the Positioning is achieved in the anti-rotation groove 1041d. In order to achieve sealing, a sealing ring is provided between the head of the positioning screw and the pump head body 101.
  • the suction valve seat 1021 is formed into a plate body with a suction through hole 1021a in the middle, an annular groove 1021b is formed on one side of the plate body, and the spacer body
  • the outer casing 1041a of 1041 is inserted into the annular groove 1021b.
  • the positioning of the spacer body 1041 is further facilitated by providing the annular groove 1021b.
  • the suction valve seat 1021 is sealed with the pump head body 101 through the sealing ring 107.
  • the suction valve core 1022 includes a valve core plug 1022 a for matching with the liquid suction through hole 1021 a of the suction valve seat 1021 and a valve core sliding portion matching with the sliding sleeve 1042 1022b, the valve core plug 1022a is formed into a circular flat body larger than the liquid suction through hole 1021a, and the valve core sliding portion 1022b is formed as a sliding rod extending axially along the hollow chamber 101a, Under the action of force, the valve core can slide in the sliding sleeve 1042 in the axial direction to open or block the liquid suction through hole 1021 a of the liquid suction valve seat 1021 .
  • the drain valve assembly 103 includes a drain valve seat 1031 , a drain valve core 1032 , a drain valve core stop valve 1034 and a second return spring 1033 ; wherein, as shown in FIGS. 4 and 5 , the The drain valve seat 1031 is provided with a drain through hole 1031a, and the drain through hole 1031a is provided with a first conical surface a; as shown in FIG.
  • the drain valve core 1032 is slidably connected to the drain On the drain through hole 1031a of the valve seat 1031, the drain valve core 1032 is provided with a second conical surface b that matches the first conical surface a; the drain valve core stop valve 1034 is provided between the drain valve core 1032 and the end cover 105; one end of the second return spring 1033 is sleeved on the drain valve core 1032, and the other end abuts against the drain valve core stop valve 1034 on. More specifically, the sealing ring 107 is used for sealing connection between the drain valve seat 1031 and the pump head body 101 and between the drain valve core stop valve 1034 and the pump head body 101 respectively.
  • the impact on the drain valve core 1032 and the drain valve seat 1031 is greater, the drain valve core 1032 and the drain valve
  • the seat 1031 makes the sealing between the two better through the cooperation of the conical surface, and at the same time, it can realize compensation by itself after wear, so as to prolong the service life.
  • the pressure of the emulsified liquid in the suction valve assembly 102 during suction is relatively small.
  • the cooperation between the suction valve seat 1021 and the suction valve core 1022 in the suction valve assembly 102 adopts a plane fit
  • the cooperation between the discharge valve core 1032 and the discharge valve seat 1031 adopts the method of conical surface cooperation, so that the lifespan of the discharge valve assembly 103 and the suction valve assembly 102 can be equal. It can be repaired and replaced at the same time, which avoids the waste of parts due to the different use conditions of each part when the parts are replaced due to the large difference in service life between the two.
  • a positioning structure is provided between the spacer body 1041 and the drain valve seat 1031 , and the positioning structure includes a positioning structure provided on the spacer body 1041 protrusions or positioning grooves; and positioning grooves or positioning protrusions correspondingly provided on the drain valve seat 1031 . More specifically, as shown in FIG.
  • a positioning groove 1041e is provided at the inner wall of the outer casing 1041a of the spacer body 1041, and a positioning protrusion 1031b is provided at the corresponding position of the drain valve seat 1031, in order to further prevent the
  • the drain valve seat 1031 rotates in the hollow chamber 101a
  • the positioning groove 1041e is integrally formed as a square groove
  • the positioning protrusion 1031b of the drain valve seat 1031 is a square protrusion matched with it.
  • the inner wall of the hollow chamber 101a is provided with a first step, and the first step divides the hollow chamber 101a into a first chamber 101a1 and a second chamber 101a2, wherein the The inner diameter of the first chamber 101a1 is larger than the inner diameter of the second chamber 101a2, the suction valve assembly 102, the spacer and the discharge valve assembly 103 are installed in the first chamber 101a1,
  • the second chamber 101a2 is used for communicating with the pipetting box assembly 108 .
  • the first chamber 101a1 may be formed into a chamber with the same inner diameter from top to bottom, or may be provided with several stepped mounting surfaces with different inner diameters.
  • the inner diameter C of the first chamber 101a1 for installing the suction valve assembly 102 is smaller than the inner diameter B for installing the spacer assembly 104
  • the inner diameter B for installing the spacer assembly 104 is smaller than the inner diameter B for installing the spacer assembly 104.
  • the suction valve assembly 102 , the spacer assembly 104 and the discharge valve assembly 103 can be assembled and disassembled through the opening at the upper end of the pump head body 101 , and the disassembly is convenient and quick.
  • the present invention also provides a specific embodiment of the plunger pump using the above-mentioned pump head assembly 100.
  • the plunger pump of this embodiment is a five-plunger emulsion pump.
  • the 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 is the The 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 Pump head assembly 100 connections.
  • the rotary motion input by the main drive motor drives the input crankshaft connecting rod to rotate, which is converted into the reciprocating linear motion of the plunger in the slider hydraulic conversion assembly 200, resulting in the volume of the cavity in the pump head assembly 100.
  • the plunger causes the volume of the cavity to increase at the farthest end to form a negative pressure, the suction valve core 1022 is opened, and the discharge valve core 1032 is closed, and this process completes the suction;
  • the volume is reduced to compress the sucked liquid to form high pressure liquid, the liquid suction valve core 1022 is closed, the liquid discharge valve core 1032 is opened to discharge the high pressure liquid, and the liquid discharge is completed in this process.
  • the pump head assembly 100 is sealed with the conical surface of the discharge valve core 1032 and the discharge valve seat 1031, which ensures the high volumetric efficiency of the five-plunger pump, thereby meeting the actual liquid supply demand of the hydraulic system of the fully mechanized mining face with super high mining height.

Abstract

一种乳化液柱塞泵及其泵头总成（100），泵头总成（100）包括：泵头体（101）、吸液阀组件（102）、排液阀组件（103）、隔套组件（104）以及端盖（105），泵头体（101）具有中空腔室（101a）；吸液阀组件（102）、隔套组件（104）以及排液阀组件（103）依次安装于中空腔室（101a）内；吸液阀组件（102）包括吸液阀座（1021）、吸液阀芯（1022）以及第一复位弹簧（1023）；吸液阀芯（1022）滑动连接于隔套组件（104）上，第一复位弹簧（1023）位于隔套组件（104）与吸液阀芯（1022）之间；端盖（105）与泵头体（101）的一端可拆卸连接。泵头总成（100）内部结构合理，使用寿命长。

Description

一种乳化液柱塞泵及其泵头总成
本申请要求2020年10月9日提交中国专利局、申请号为202011073265.6、发明名称为“一种乳化液柱塞泵及其泵头总成”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
本发明涉及乳化液泵的设计制造领域，特别涉及一种乳化液柱塞泵及其泵头总成。
背景技术
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。乳化液泵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。乳化液柱塞泵是一种以乳化液或水作为介质，通过曲轴箱体的内部结构对乳化液进行做功，进而转化为乳化液的液压能的装置。
乳化液泵的泵头总成具有腔室结构，腔室内设置吸液阀组件、排液阀组件以及隔套等。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。另外，现有柱塞泵中，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。
发明内容
本发明要解决的第一个技术问题是现有柱塞泵的泵头总成内部 结构不合理导致阀芯偏磨、使用寿命较短的问题。
针对上述技术问题，本发明提供如下技术方案：
一种乳化液柱塞泵的泵头总成，其包括：泵头体，所述泵头体具有中空腔室；吸液阀组件、排液阀组件以及隔套，所述吸液阀组件、所述隔套组件以及所述排液阀组件依次安装于所述中空腔室内；其中，所述吸液阀组件包括吸液阀座、吸液阀芯以及第一复位弹簧；所述吸液阀芯滑动连接于所述隔套组件上，所述第一复位弹簧位于所述隔套组件与所述吸液阀芯之间；端盖，所述端盖与所述泵头体的一端可拆卸连接用于封闭所述中空腔室。
本申请的部分实施方式中，所述隔套组件包括隔套本体以及固定连接于隔套本体上的滑套，所述吸液阀芯滑动连接于所述滑套上。
本申请的部分实施方式中，所述隔套本体的外壁设有防转槽，所述泵头体上设有沿径向延伸的第一连通孔，所述隔套本体通过穿过所述第一连通孔插接于所述防转槽内的定位件进行定位。
本申请的部分实施方式中，所述隔套本体包括：外套体，所述外套体与所述中空腔室的内壁间隙配合；内套体，所述内套体与所述滑套过盈配合；过渡连接部，所述过渡连接部用于连接所述外套体与内套体。
本申请的部分实施方式中，所述吸液阀座成型为中部具有吸液通孔的板体，所述板体的一侧板面上设有环形槽，所述隔套本体的所述外套体插接于所述环形槽内。
本申请的部分实施方式中，所述吸液阀芯包括阀芯堵头以及阀芯滑动部，所述阀芯堵头成型为大于所述吸液通孔的平板体，所述阀芯滑动部成型为沿所述中空腔室轴向延伸的滑杆。
本申请的部分实施方式中，所述排液阀组件包括：排液阀座，所述排液阀座设有排液通孔，所述排液通孔上设有第一圆锥面；排液阀芯，所述排液阀芯滑动连接于所述排液阀座的所述排液通孔上，所述排液阀芯上设有与所述第一圆锥面配合的第二圆锥面；排液阀芯止阀件，所述排液阀芯止阀件设置于所述排液阀芯与所述端盖之间；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。
本申请的部分实施方式中，所述隔套本体与所述排液阀座之间设置定位结构，所述定位结构包括设置于所述隔套本体上的定位凸起或定位凹槽；以及对应设置于所述排液阀座上的定位凹槽或定位凸起。
本申请的部分实施方式中，所述中空腔室的内壁设有第一台阶面；所述第一台阶面将所述中空腔室分成第一腔室与第二腔室，其中，所述第一腔室的内径大于所述第二腔室的内径，所述吸液阀组件、所述隔套以及所述排液阀组件安装于所述第一腔室内。
本发明同时公开一种乳化液柱塞泵，其包括上述泵头总成。
本发明的技术方案相对现有技术具有如下技术效果：
本发明提供的乳化液柱塞泵的泵头总成中，由于吸液阀组件与排液阀组件通过隔套组件分隔开，且吸液阀芯滑动连接于隔套组件上，第一复位弹簧位于隔套组件与吸液阀芯之间，吸液阀芯复位时不受排液阀芯动作的影响，吸液阀芯关阀可靠。同时，由于吸液阀芯滑动连接于隔套组件上，其设置于所述吸液阀座的远离吸液盒组件的一侧，吸液时受到冲击更小，寿命更长。
进一步地，本发明提供的乳化液柱塞泵的泵头总成中，吸液阀组件的吸液阀座与吸液阀芯之间的配合采用平面配合的方式，排液阀组件103的排液阀芯与排液阀座之间的配合采用锥面配合的方式，可以使排液阀组件与吸液阀组件的寿命相当，可以同时进行维修更换，避免了两者采用相同结构导致进行零件更替时，各个部件的使用状况不同导致零部件浪费的问题。
进一步地，本发明提供的乳化液柱塞泵的泵头总成中，所述中空腔室的内壁设有第一台阶，所述第一台阶将所述中空腔室分成第一腔室与第二腔室，其中，所述第一腔室的内径大于所述第二腔室的内径，所述吸液阀组件、所述隔套以及所述排液阀组件安装于所述第一腔室内，所述第二腔室用于与吸液盒组件连通，这样，排液阀组件、隔套组件以及吸液阀组件均通过中空腔室排液侧安装，在进行维修时，不 需要拆卸供油管路等即可以进行泵头体的检修。
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为本发明乳化液柱塞泵的泵头总成一种具体实施方式的结构示意图；
图2为本发明的吸液阀座的一种具体实施方式的结构示意图；
图3为本发明的吸液阀芯的一种具体实施方式的结构示意图；
图4为本发明的排液阀座的一种具体实施方式的结构示意图；
图5为本发明的排液阀座的一种具体实施方式的另一结构示意图；
图6为本发明的排液阀芯的一种具体实施方式的结构示意图；
图7为本发明的隔套组件的一种具体实施方式的结构示意图；
图8为本发明的泵头本体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。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连 接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
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所示为本发明公开的一种乳化液柱塞泵的泵头总成的具体实施方式，所述泵头总成100包括泵头体101，所述泵头体101具有中空腔室101a，由下至上依次安装于所述中空腔室101a内的吸液阀组件102、隔套组件104以及排液阀组件103，还包括用于封闭所述中空腔室101a的端盖105，所述端盖105与所述泵头体101的上端可拆卸连接。
其中，所述吸液阀组件102包括吸液阀座1021、吸液阀芯1022以及第一复位弹簧1023；所述吸液阀芯1022滑动连接于所述隔套组件104上，所述第一复位弹簧1023位于所述隔套组件104与所述吸液阀芯1022之间。
由于上述泵头总成100中，吸液阀组件102与排液阀组件103通过隔套组件104分隔开，且吸液阀芯1022滑动连接于隔套组件104上，第一复位弹簧1023位于隔套组件104与吸液阀芯1022之间，吸液阀芯1022复位时不受排液阀芯动作的影响，吸液阀芯1022关阀可靠。同时，由于吸液阀芯1022设置于所述吸液阀座1021上侧，并滑动连接于隔套组件104上，相对设置在吸液阀座1021下侧的吸液阀芯1022，吸液时受到冲击更小，寿命更长。
具体地，如图7所示，所述隔套组件104包括隔套本体1041以及固定连接于隔套本体1041上的滑套1042，所述吸液阀芯1022滑动连接于所述滑套1042上。更具体地，所述滑套1042采用材质较软的铜套，所述吸液阀芯1022相对铜套滑动可降低其本身的磨损，提高吸液阀芯1022的使用寿命。
具体地，如图7所示，所述隔套本体1041包括与所述中空腔室101a的内壁间隙配合的外套体1041a，与所述滑套1042过盈配合的内套体 1041b，以及用于连接所述外套体1041a与内套体1041b的过渡连接部1041c。所述外套体1041a用于将吸液阀组件102与排液阀组件103进行隔离，内套体1041b则用于安装滑套1042以实现与吸液阀芯1022滑动配合。
上述隔套本体1041采用内外套体的结构，可以使所述吸液阀芯1022能够可靠地沿所述隔套本体1041的内套体1041b内滑动，避免现有技术中吸液阀芯1022相对所述吸液阀座1021径向晃动。
具体地，所述泵头体101设有用于与液力转化组件200连通的泵头连通孔，所述隔套本体1041上设有与所述泵头连通孔对应的隔套连通孔，部分所述液力转化组件200沿所述泵头连通孔与隔套连通孔伸入所述中空腔室101a内。其中，所述液力转化组件200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。
更具体地，由于隔套连通孔与泵头连通孔相对时，液力转化组件200才能伸入至中空腔室101a内，因此，为了防止隔套本体1041沿中空腔室101a的轴向转动，所述隔套本体1041的外壁设有防转槽1041d，所述泵头体101上设有沿径向延伸的第一连通孔，所述隔套本体1041通过穿过所述第一连通孔插接于所述防转槽1041d内的定位件106进行定位。
一种实施方式中，所述定位件106具体为定位销，由于工作状态下，中空腔室101a需要保持密封状态，因此，所述定位件106与所述泵头体101之间设置密封件以保证其密封；另一种实施方式中，所述定位件106具体为定位螺钉，所述第一连通孔具体为螺纹孔，所述定位螺钉与泵头体101螺纹连接，同时其端部插入所述防转槽1041d内实现定位，为了实现密封，所述定位螺钉的头部与所述泵头体101之间设置密封圈。
具体地，如图2所示，所述吸液阀座1021成型为中部具有吸液通孔1021a的板体，所述板体的一侧板面上设有环形槽1021b，所述隔套本体1041的所述外套体1041a插接于所述环形槽1021b内。通过设置环形槽1021b更加便于所述隔套本体1041的定位。更具体地，所述吸 液阀座1021与所述泵头体101通过密封圈107进行密封连接。
如图3所示，所述吸液阀芯1022包括用于与所述吸液阀座1021的吸液通孔1021a配合的阀芯堵头1022a以及与所述滑套1042配合的阀芯滑动部1022b，所述阀芯堵头1022a成型为大于所述吸液通孔1021a的圆形平板体，所述阀芯滑动部1022b成型为沿所述中空腔室101a轴向延伸的滑杆，在液力作用下，所述阀芯可沿轴向在所述滑套1042内滑动以打开或封堵所述吸液阀座1021的吸液通孔1021a。
具体地，所述排液阀组件103包括排液阀座1031、排液阀芯1032、排液阀芯止阀件1034以及第二复位弹簧1033；其中，如图4、图5所示，所述排液阀座1031设有排液通孔1031a，所述排液通孔1031a上设有第一圆锥面a；如图6所示，所述排液阀芯1032滑动连接于所述排液阀座1031的所述排液通孔1031a上，所述排液阀芯1032上设有与所述第一圆锥面a配合的第二圆锥面b；所述排液阀芯止阀件1034设置于所述排液阀芯1032与所述端盖105之间；所述第二复位弹簧1033一端套设于所述排液阀芯1032，另一端抵靠在所述排液阀芯止阀件1034上。更具体地，所述排液阀座1031与所述泵头体101之间以及所述排液阀芯止阀件1034与所述泵头体101之间分别通过密封圈107实现密封连接。
由于排液阀组件103在进行排液时乳化液的压力较大，所述排液阀芯1032与所述排液阀座1031受到的冲击较大，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。而吸液阀组件102在进行吸液时乳化液的压力较小，因此，本发明中，将吸液阀组件102中，吸液阀座1021与吸液阀芯1022之间的配合采用平面配合的方式，而排液阀组件103中，排液阀芯1032与排液阀座1031之间的配合采用锥面配合的方式，可以使排液阀组件103与吸液阀组件102的寿命相当，可以同时进行维修更换，避免了两者使用寿命相差较大导致进行零件更替时，各个部件的使用状况不同导致零部件的浪费。
为了进一步提高所述排液阀组件103的安装定位，所述隔套本体1041与所述排液阀座1031之间设置定位结构，所述定位结构包括设置 于所述隔套本体1041上的定位凸起或定位凹槽；以及对应设置于所述排液阀座1031上的定位凹槽或定位凸起。更具体地，如图6所示，所述隔套本体1041的外套体1041a内壁处设置定位凹槽1041e，所述排液阀座1031的对应位置处设置定位凸起1031b，为了进一步防止所述排液阀座1031在中空腔室101a内转动，所述定位凹槽1041e整体成型为方形槽，所述排液阀座1031的定位凸起1031b为与其配合的方形凸起。
为了使上述排液阀组件103、隔套组件104以及吸液阀组件102均通过中空腔室101a的排液侧安装，这样在进行维修时，不需要拆卸供油管路等即可以进行泵头体101的检修。因此，如图8所示，所述中空腔室101a的内壁设有第一台阶，所述第一台阶将所述中空腔室101a分成第一腔室101a1与第二腔室101a2，其中，所述第一腔室101a1的内径大于所述第二腔室101a2的内径，所述吸液阀组件102、所述隔套以及所述排液阀组件103安装于所述第一腔室101a1内，所述第二腔室101a2用于与吸液盒组件108连通。
更具体地，所述第一腔室101a1可以成型为内径由上至下相同的腔室，也可以设置有内径大小不同的若干个阶梯式安装面。其中，所述第一腔室101a1用于安装所述吸液阀组件102部分的内径C小于用于安装隔套组件104部分的内径B，用于安装隔套组件104部分的内径B小于用于安装排液阀组件103部分的内径A。所述吸液阀组件102、所述隔套组件104以及所述排液阀组件103均可以通过泵头体101上端的开口装配的拆卸，拆卸方便快捷。
本发明同时提供一种采用上述泵头总成100的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。
所述曲轴箱总成300与所述泵头总成100之间具有设定距离的间 隙，所述液力转化组件200可从所述曲轴箱总成300与所述泵头总成100之间的间隙内拆除或安装。
上述柱塞泵工作运转时，主驱动电机输入的旋转运动带动输入曲轴连杆转动，转换成滑块液力转化组件200中柱塞的往复直线运动，致使泵头总成100中的容腔体积发生变化，柱塞在最远端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；柱塞运动至最近端时，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。泵头总成100排液阀芯1032与排液阀座1031的锥面密封，保证了五柱塞泵的高容积效率，从而满足超大采高综采工作面液压系统的实际供液需求。
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的保护范围之中。

Claims (10)

  1. 一种乳化液柱塞泵的泵头总成，其特征在于，其包括：
    泵头体，所述泵头体具有中空腔室；
    吸液阀组件、排液阀组件以及隔套，所述吸液阀组件、所述隔套组件以及所述排液阀组件依次安装于所述中空腔室内；其中，所述吸液阀组件包括吸液阀座、吸液阀芯以及第一复位弹簧；所述吸液阀芯滑动连接于所述隔套组件上，所述第一复位弹簧位于所述隔套组件与所述吸液阀芯之间；
    端盖，所述端盖与所述泵头体的一端可拆卸连接用于封闭所述中空腔室。
  2. 根据权利要求1所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述隔套组件包括隔套本体以及固定连接于隔套本体上的滑套，所述吸液阀芯滑动连接于所述滑套上。
  3. 根据权利要求2所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述隔套本体的外壁设有防转槽，所述泵头体上设有沿径向延伸的第一连通孔，所述隔套本体通过穿过所述第一连通孔插接于所述防转槽内的定位件进行定位。
  4. 根据权利要求2所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述隔套本体包括：
    外套体，所述外套体与所述中空腔室的内壁间隙配合；
    内套体，所述内套体与所述滑套过盈配合；
    过渡连接部，所述过渡连接部用于连接所述外套体与内套体。
  5. 根据权利要求4所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述吸液阀座成型为中部具有吸液通孔的板体，所述板体的一侧板面上设有环形槽，所述隔套本体的所述外套体插接于所述环形槽内。
  6. 根据权利要求5所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述吸液阀芯包括阀芯堵头以及阀芯滑动部，所述阀芯堵头成型为大于所述吸液通孔的平板体，所述阀芯滑动部成型为沿所述中空 腔室轴向延伸的滑杆。
  7. 根据权利要求1-6任一所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述排液阀组件包括：
    排液阀座，所述排液阀座设有排液通孔，所述排液通孔上设有第一圆锥面；
    排液阀芯，所述排液阀芯滑动连接于所述排液阀座的所述排液通孔上，所述排液阀芯上设有与所述第一圆锥面配合的第二圆锥面；
    排液阀芯止阀件，所述排液阀芯止阀件设置于所述排液阀芯与所述端盖之间；
    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所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述隔套本体与所述排液阀座之间设置定位结构，所述定位结构包括设置于所述隔套本体上的定位凸起或定位凹槽；以及对应设置于所述排液阀座上的定位凹槽或定位凸起。
  9. 根据权利要求1所述的一种乳化液柱塞泵的泵头总成，其特征在于，所述中空腔室的内壁设有第一台阶面；所述第一台阶面将所述中空腔室分成第一腔室与第二腔室，其中，所述第一腔室的内径大于所述第二腔室的内径，所述吸液阀组件、所述隔套以及所述排液阀组件安装于所述第一腔室内。
  10. 一种乳化液柱塞泵，其特征在于，其包括如权利要求1-9任意一项所述的泵头总成。
PCT/CN2021/086361 2020-10-09 2021-04-12 一种乳化液柱塞泵及其泵头总成 WO2022073328A1 (zh)

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US6193483B1 (en) * 1998-02-19 2001-02-27 Clarence Michael Full flow tubing stationary valve pump apparatus
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DE3448016A1 (de) * 1984-08-03 1986-06-12 Klaus 6107 Reinheim Obermann Duplex-plunger-pumpe
US6193483B1 (en) * 1998-02-19 2001-02-27 Clarence Michael Full flow tubing stationary valve pump apparatus
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