WO2018161442A1 - 一种用于液体加工的柱塞泵 - Google Patents

一种用于液体加工的柱塞泵 Download PDF

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Publication number
WO2018161442A1
WO2018161442A1 PCT/CN2017/086236 CN2017086236W WO2018161442A1 WO 2018161442 A1 WO2018161442 A1 WO 2018161442A1 CN 2017086236 W CN2017086236 W CN 2017086236W WO 2018161442 A1 WO2018161442 A1 WO 2018161442A1
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Prior art keywords
cylinder
plunger pump
cylinder body
sealing ring
plunger
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PCT/CN2017/086236
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English (en)
French (fr)
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鲍同荣
郑钧
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上海普偌迈机电制造有限公司
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Publication of WO2018161442A1 publication Critical patent/WO2018161442A1/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
    • 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 the technical field of workpiece processing equipment, in particular to a plunger pump for liquid processing.
  • Liquid processing refers to the use of liquid with abrasive particles as a processing medium, polishing, deburring, cutting, etc. of the parts to be processed, and changing the shape and size of the parts, and a machining method using solid cutting such as tools. The use is to deburr.
  • Deburring has always been a major problem in the metal production and processing industry.
  • manual deburring can only remove burrs on the surface and contact areas, and it is easy to damage the surface of the workpiece. It is difficult to control the size and cannot be removed.
  • the burrs of the cross holes in the workpiece; the current industry deburring using mechanical deburring can only remove the burrs on the surface or the position that can be directly contacted; the chemical deburring method is difficult to control the accuracy of the workpiece burr and other parts except environmental protection. size.
  • the existing deburring method is a method of deburring liquid, usually by mixing the liquid and the abrasive, and then placing the workpiece to be deburred on the processing bed, and moving the mixed abrasive through the plunger pump to remove the burr on the surface of the workpiece. effect.
  • the plunger pump When the plunger pump is working, it should always be the abrasive particles in the mixed abrasive on the plunger column.
  • the plunger, the cylinder bore and the sealing ring are subject to particle wear, which easily damages the plunger and the cylinder. Holes and seals affect the performance of the plunger pump and the life of the plunger pump.
  • the present invention discloses a plunger pump for liquid processing to solve the above-mentioned existing problems.
  • a plunger pump for liquid processing comprising a hydraulic cylinder connected to an upper portion of a plunger pump and a base connected to a lower portion of the plunger pump; the plunger pump including a cylinder and a plunger rod, the plunger The rod is disposed in the cylinder body and is tightly connected by a sealing ring.
  • the upper part of the inner side of the cylinder body is provided with an annular groove under the sealing ring, and the annular groove is filled with clear water through the water inlet of the left side of the cylinder block and is from the right side of the cylinder block. The water outlet is discharged.
  • the lower portion of the cylinder is provided with a feed port and a discharge port.
  • a guide rod is disposed outside the cylinder, and the guide rod is fixed by the guide rod base.
  • the top end of the guide rod is provided with a cover plate, and the hydraulic oil cylinder is fixed to the cover plate by screws.
  • a dust seal made of a soft material is disposed in the cylinder bore of the cylinder.
  • the water inlet is connected to the high pressure water pump, and the water pressure at the water inlet is sufficient to the pressure of the customer service abrasive liquid.
  • the annular groove has a width of 1 to 20 mm.
  • the annular groove has a depth of 1-6 mm.
  • the hydraulic cylinder includes a cylinder and a fuel pipe disposed at an upper end of the cylinder.
  • a plunger pump for liquid processing by opening a groove on the inner side of the cylinder block and flowing the clean water by pressure injection, so that the abrasive adhered to the plunger rod is carried out by the flowing clear water when the plunger pump is operated,
  • the abrasive attached to the plunger rod is prevented from damaging the plunger rod, the cylinder hole and the sealing ring, and the sealing performance of the sealing ring is maintained, so that the working life of the plunger pump is longer, the cost is saved, the structure is simple, and the utility model is very practical, and the invention is realized. the goal of.
  • Figure 1 is a schematic view showing the structure of a plunger pump for liquid processing according to the present invention
  • Figure 2 is a schematic view showing the partial structure of the plunger pump of the present invention.
  • a plunger pump for liquid processing of the present invention includes a hydraulic cylinder 30 connected to an upper portion of a plunger pump 20 and a base 10 connected to a lower portion of the plunger pump;
  • the pump comprises a cylinder 21 and a plunger rod 22, the plunger rod is arranged in the cylinder body and is tightly connected by a sealing ring 23.
  • the sealing ring is made of a soft material, which can ensure the airtightness inside the cylinder body;
  • An annular groove 40 is defined under the sealing ring. The annular groove 40 is filled with clean water through the water inlet 41 on the left side of the cylinder and discharged from the water outlet 42 on the right side of the cylinder.
  • the water inlet 41 is connected with the high pressure water pump, and the water pressure at the water inlet is Sufficient to overcome the pressure of the abrasive liquid, the fresh water in the annular groove can be kept in a flowing state;
  • the annular groove has a width of 1-20 mm and a depth of 1-6 mm; and a feeding port 24 and a discharge port 25 are arranged at a lower portion of the cylinder.
  • the abrasive liquid is sucked into the plunger pump from the feed port, and is pressurized and sent from the discharge port to the composite fixture of the workpiece to be processed.
  • a guide rod 51 is disposed outside the cylinder body to ensure that the hydraulic cylinder pushes the plunger pump to work in a stable direction, and the guide rod is fixed by the guide rod base 52; a cover plate 53 is disposed at the top end of the guide rod, and the hydraulic pressure is provided.
  • the cylinder 30 is fixed to the cover by screws, wherein the hydraulic cylinder includes a cylinder 31 and an oil pipe 32 disposed at an upper end of the cylinder.
  • a groove is formed in the inner side of the cylinder block, and the clean water is injected through the pressure, so that the abrasive adhered to the plunger rod is carried out by the flowing clear water when the plunger pump is operated, thereby avoiding the column.
  • the abrasive attached to the plug rod damages the plunger rod, the cylinder bore and the sealing ring, keeping the sealing ring tight, which makes the working life of the plunger pump longer and saves costs.
  • the mixed abrasive is pressurized by the plunger pump, the mixed abrasive is injected into the composite fixture of the workpiece to be processed, and the workpiece is processed by the mixed abrasive under the action of the mixed abrasive; the hydraulic cylinder is operated by filling the oil into the cylinder through the oil pipe.
  • fresh water is injected into the water inlet through the high-pressure water pump, and the clean water flows out from the water outlet through the annular groove on the inner side of the plunger pump cylinder to maintain the fluidity of the clean water in the annular groove, and the high-pressure oil cylinder drives the plunger pump to work, and the plunger pump is operated.
  • the up and down movement of the plunger rod drives the mixed abrasive movement in the cylinder, and the part to be processed on the workpiece is processed by the mixed abrasive.
  • the plunger rod is provided with abrasive material during the movement.
  • a dustproof ring made of a soft material is arranged in the cylinder bore of the cylinder to prevent large particles of abrasive from passing through the plunger. The movement of the rod breaks the tightness of the sealing ring, and then the small amount of abrasive passing through the dust ring flows out along the water outlet of the annular groove through the clear water flowing in the annular groove inside the cylinder.

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

Abstract

一种用于液体加工的柱塞泵（20），包括与柱塞泵（20）上部连接的液压油缸（30）和与柱塞泵（20）下部连接的基座（10）；柱塞泵（20）包括一缸体（21）和柱塞杆（22），柱塞杆（22）设置在缸体（21）内并通过密封圈（23）紧密连接，缸体（21）内侧上部位于密封圈（23）下开设有一环形凹槽（40），环形凹槽（40）通过缸体（21）左侧的进水口（41）注入清水并从缸体（21）右侧出水口（42）排出；通过在缸体（21）内侧开设凹槽，通过压力注入流动清水，使柱塞泵（20）工作时柱塞上粘附的加工磨料颗粒通过流动的清水隔离带出，避免柱塞上粘附的磨料颗粒到柱塞、缸孔与密封圈（23）之间形成磨损伤害，保持了密封圈（23）的密闭性，使得柱塞泵（20）的工作寿命10倍以上延长，节约了成本，结构简单。

Description

一种用于液体加工的柱塞泵 技术领域
本发明涉工件加工设备技术领域，特别涉及一种用于液体加工的柱塞泵。
背景技术
液体加工是指用带磨料颗粒的液体作为加工介质，对需要加工的零件进行抛光、去毛刺、切割等改变零件形状和尺寸的有别与用刀具等固体切削加工的一种加工方法，比较常见的运用是去毛刺。
去毛刺一直是金属生产加工行业的一大难题，采用人工去毛刺除人力成本高、效率低外，还只能去除表面及能接触地方的毛刺，而且易损坏工件表面，不易控制尺寸，不能去除工件内部各交叉孔的毛刺；目前行业内采用机械去毛刺也只能去除表面或能直接接触到的位置的毛刺；化学去毛刺方法除不环保外也很难控制工件毛刺位及其它部位的精度尺寸。
现有去毛刺采用的是液体去毛刺的方法，通常是将液体及磨料混合在一起，然后将待去毛刺的工件放在加工床上，通过柱塞泵让混合磨料运动，达到清除工件表面毛刺的效果。
柱塞泵工作的时候常常会应为柱塞柱上粘带混合磨料中的磨料颗粒，在柱塞泵工作时，柱塞、缸孔及密封圈遭到颗粒磨损，很容易损毁柱塞、缸孔及密封圈，影响柱塞泵的性能及柱塞泵的使用寿命。
因此，本发明公开了一种用于液体加工的柱塞泵，以解决上述现有存在的问题。
发明内容
本发明的目的在于提供一种用于液体加工的柱塞泵，以解决现有技术中存在的诸多问题。
为了实现上述目的，本发明的技术方案如下：
一种用于液体加工的柱塞泵，包括与柱塞泵上部连接的液压油缸和与柱塞泵下部连接的基座；所述柱塞泵包括一缸体和柱塞杆，所述柱塞杆设置在缸体内并通过密封圈紧密连接，所述缸体内侧上部位于密封圈下开设有一环形凹槽，所述环形凹槽通过缸体左侧的进水口注入清水并从缸体右侧出水口排出。
在本发明中，所述缸体下部设置有进料口和出料口。
在本发明中，所述缸体外侧设置有导杆，所述导杆通过导杆基座固定。
在本发明中，所述导杆顶端设置有一盖板，所述液压油缸通过螺钉固定在盖板上。
在本发明中，所述缸体缸孔内设置有软质材料制成的防尘圈。
在本发明中，所述进水口与高压水泵连接，进水口处水压足于客服磨料液体的压力。
在本发明中，所述环形凹槽的宽度为1-20mm。
在本发明中，所述环形凹槽的深度为1-6mm。
在本发明中，所述液压油缸包括一油缸和油缸上端设置的油管。
本发明的一种用于液体加工的柱塞泵，通过在缸体内侧开设凹槽，通过压力注入流动清水，使柱塞泵工作时柱塞杆上粘附的磨料通过流动的清水带出，避免柱塞杆上附带的磨料损毁柱塞杆、缸孔及密封圈，保持了密封圈的密闭性，使得柱塞泵的工作寿命更长，节约了成本，结构简单，十分实用，实现本发明的目的。
本发明的特点可参阅本案附图及以下较好实施方式的详细说明而获得清楚地了解。
附图说明
图1为本发明的一种用于液体加工的柱塞泵的结构示意图；
图2为本发明中柱塞泵局部结构示意图。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了 解，下面结合具体实施例进一步阐述本发明。
如图1-2所示，本发明的一种用于液体加工的柱塞泵，包括与柱塞泵20上部连接的液压油缸30和与柱塞泵下部连接的基座10；所述柱塞泵包括一缸体21和柱塞杆22，柱塞杆设置在缸体内并通过密封圈23紧密连接，密封圈为软质材料制成，能够保证缸体内部的密闭性；缸体内侧上部位于密封圈下开设有一环形凹槽40，环形凹槽40通过缸体左侧的进水口41注入清水并从缸体右侧出水口42排出，进水口41与高压水泵连接，进水口处水压足以克服磨料液体压力，能够保持环形凹槽内的清水处于流动状态；该环形凹槽的宽度为1-20mm，深度为1-6mm；在缸体下部设置有进料口24和出料口25，磨料液体从进料口被吸进柱塞泵，加压后从出料口送到有待加工工件的复合夹具中。
在本发明一个事实例中，缸体外侧设置有导杆51，保证液压油缸推动柱塞泵工作的方向稳定，导杆通过导杆基座52固定；在导杆顶端设置有一盖板53，液压油缸30通过螺钉固定在盖板上，其中液压油缸包括一油缸31和油缸上端设置的油管32。
本发明，通过在缸体内侧开设凹槽，通过在缸体内侧开设凹槽，通过压力注入流动清水，使柱塞泵工作时柱塞杆上粘附的磨料通过流动的清水带出，避免柱塞杆上附带的磨料损毁柱塞杆、缸孔及密封圈，保持了密封圈的密闭性，使得柱塞泵的工作寿命更长，节约了成本。
在本发明中，混合磨料被柱塞泵加压后，将混合磨料注入有待加工工件的复合夹具中，工件特定部位在混合磨料作用下对工件进行加工；通过油管向油缸内注油使液压油缸工作；同时通过高压水泵向进水口注入清水，清水通过柱塞泵缸体内侧的环形凹槽从出水口流出，保持环形凹槽内的清水流动性，高压油缸带动柱塞泵工作，柱塞泵上的柱塞杆上下运动带动缸体内混合磨料运动，通过混合磨料对工件上需要加工的部位加工。柱塞杆在运动过程中附带上磨料，为了防止磨料损坏柱塞杆、缸体及密封圈，通过在缸体缸孔内设置软质材料制成的防尘圈，防止大颗粒磨料通过柱塞杆的运动破坏密封圈的密闭性，然后通过缸体内侧环形凹槽中流动的清水，将通过防尘圈的小颗粒磨料沿着环形凹槽上的出水口流出。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明的范围内。本发明要求的保护范围由所附的权利要求书及其等同物界定。

Claims (9)

  1. 一种用于液体加工的柱塞泵，包括与柱塞泵上部连接的液压油缸和与柱塞泵下部连接的基座；其特征在于，所述柱塞泵包括一缸体和柱塞杆，所述柱塞杆设置在缸体内并通过密封圈紧密连接，所述缸体内侧上部位于密封圈下部开设有一环形凹槽，所述环形凹槽通过缸体左侧的进水口压力注入清水并从缸体右侧出水口排出。
  2. 根据权利要求1所述的一种用于液体加工的柱塞泵，其特征在于，所述缸体下部设置有进料口和出料口。
  3. 根据权利要求1所述的一种用于液体加工的柱塞泵，其特征在于，所述缸体外侧设置有导杆，所述导杆通过导杆基座固定。
  4. 根据权利要求1所述的一种用于液体加工的柱塞泵，其特征在于，所述导杆顶端设置有一盖板，所述液压油缸通过螺钉固定在盖板上。
  5. 根据权利要求1所述的一种用于液体加工的柱塞泵，其特征在于，所述缸体内设置有软质材料制成的防尘圈。
  6. 根据权利要求1所述的一种去毛刺机上使用的柱塞泵，其特征在于，所述进水口与高压水泵连接。
  7. 根据权利要求1所述的一种去毛刺机上使用的柱塞泵，其特征在于，所述环形凹槽的宽度为1-20mm。
  8. 根据权利要求1所述的一种去毛刺机上使用的柱塞泵，其特征在于，所述环形凹槽的深度为1-6mm。
  9. 根据权利要求1所述的一种去毛刺机上使用的柱塞泵，其特征在于，所述液压油缸包括一油缸和油缸上端设置的油管。
PCT/CN2017/086236 2017-03-07 2017-05-27 一种用于液体加工的柱塞泵 WO2018161442A1 (zh)

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