技术领域Technical Field
本发明涉及往复泵技术领域，具体涉及一种低应力往复泵。The invention relates to the technical field of reciprocating pumps, and in particular to a low-stress reciprocating pump.
背景技术Background technique
往复泵已广泛应用于石油、化工、军工等各领域中，常用于输送各种高压液体、气体，由动力端曲轴、连杆、十字头往复做功带动液力端的柱塞填料阀组做吸入功与排出功，来完成液体、气体介质的增压。Reciprocating pumps have been widely used in various fields such as petroleum, chemical industry, and military industry. They are often used to transport various high-pressure liquids and gases. The reciprocating work of the crankshaft, connecting rod, and crosshead at the power end drives the plunger packing valve group at the hydraulic end to perform suction and discharge work to complete the pressurization of liquid and gas media.
在往复泵的往复工作过程中，在压差参数大、速度高的工况下，往复泵内部泵体、机身、函体三者间的应力较大，尤其是应力集中在机身的脆弱部位、机身与泵体的连接应力主要由泵体来承受且泵体受力面积大，以及函体周围零件的应力主要由函体来承受时，这三者开裂的现象较为频繁，导致往复泵的损坏频率较大，使用寿命较低。During the reciprocating operation of the reciprocating pump, under conditions of large pressure difference parameters and high speed, the stress between the pump body, fuselage and casing inside the reciprocating pump is relatively large, especially when the stress is concentrated in the vulnerable parts of the fuselage, the connection stress between the fuselage and the pump body is mainly borne by the pump body and the pump body has a large force-bearing area, and the stress of the parts around the casing is mainly borne by the casing. In this case, cracking of these three parts is more frequent, resulting in a higher frequency of damage to the reciprocating pump and a shorter service life.
发明内容Summary of the invention
本发明要解决的问题是：提供一种泵体、机身、函体三者间的应力较小、损坏频率较低，使用寿命较长的往复泵。The problem to be solved by the present invention is to provide a reciprocating pump with small stress among a pump body, a fuselage and a casing, low damage frequency and long service life.
本发明解决上述问题所采用的技术方案为：一种低应力往复泵，包括机身和设置于所述机身输出端的泵体，所述机身包括至少一组在泵体内往复运动的柱塞组件，The technical solution adopted by the present invention to solve the above problems is: a low stress reciprocating pump, comprising a body and a pump body arranged at the output end of the body, wherein the body comprises at least one group of plunger assemblies reciprocating in the pump body,
所述机身包括设置于两侧的加厚板，以及贯穿设置于所述加厚板中的第一连接螺栓；所述第一连接螺栓的前端固定连接于所述泵体中，以便固定机身与泵体，并将应力集中与加厚板中；The body includes thickened plates arranged on both sides, and first connecting bolts penetrating the thickened plates; the front end of the first connecting bolts is fixedly connected to the pump body so as to fix the body and the pump body and concentrate stress in the thickened plates;
还包括套设于所述柱塞组件外部的函体；所述机身包括设置于前端的双立板结构，所述函体设置于所述双立板结构中，以使所述函体获得径向定位；所述双立板结构包括压紧法兰，所述函体的一端被所述压紧法兰压紧，另一端抵住所述泵体，以便减少所述函体中的应力。It also includes a box body sleeved on the outside of the plunger assembly; the fuselage includes a double vertical plate structure arranged at the front end, and the box body is arranged in the double vertical plate structure to enable the box body to obtain radial positioning; the double vertical plate structure includes a clamping flange, one end of the box body is clamped by the clamping flange, and the other end is against the pump body to reduce the stress in the box body.
与现有技术相比，本发明的机身包括加厚板和贯穿设置于加厚板中的第一连接螺栓，第一连接螺栓的前端固定连接于泵体中，因此在机身与泵体的连接中，应力主要由机身来承受，泵体承受应力较小，且受力面积较小，从而降低了泵体开裂损坏的概率，加厚板的壁厚相较于机身其他位置厚度更大，强度更高，因此能够承受较大的应力，减少了机身开裂损坏的概率；机身包括双立板结构，函体设置于双立板结构中，并通过压紧法兰压紧，使得函体与机身、泵体连成一体，减少了函体受到的径向力和轴向力，从而降低了函体开裂损坏的概率。Compared with the prior art, the fuselage of the present invention includes a thickened plate and a first connecting bolt penetrating through the thickened plate, and the front end of the first connecting bolt is fixedly connected to the pump body. Therefore, in the connection between the fuselage and the pump body, the stress is mainly borne by the fuselage, and the pump body is subjected to less stress and has a smaller force-bearing area, thereby reducing the probability of cracking and damage to the pump body. The wall thickness of the thickened plate is thicker and stronger than that of other positions of the fuselage, so it can withstand greater stress and reduce the probability of cracking and damage to the fuselage; the fuselage includes a double vertical plate structure, and the box body is arranged in the double vertical plate structure and is clamped by a clamping flange, so that the box body is connected to the fuselage and the pump body as a whole, reducing the radial force and axial force on the box body, thereby reducing the probability of cracking and damage to the box body.
本发明的一种低应力往复泵，其中还包括锥形定位套；所述锥形定位套包括设置于前端的锥形体，所述泵体内部的后端设有锥形孔；所述锥形体的锥形外壁与所述锥形孔的锥形内壁相贴合，以便减少函体中的应力。A low-stress reciprocating pump of the present invention further comprises a conical positioning sleeve; the conical positioning sleeve comprises a conical body arranged at the front end, and a conical hole is arranged at the rear end inside the pump body; the conical outer wall of the conical body fits with the conical inner wall of the conical hole to reduce the stress in the box body.
本发明的一种低应力往复泵，其中所述加厚板包括贯穿设置于内部的第一螺栓孔，以及设置于远离所述泵体一端的着力台阶；所述第一连接螺栓穿过所述第一螺栓孔，且后端通过螺母固定连接于所述着力台阶上，以便拉紧所述泵体。The present invention provides a low-stress reciprocating pump, wherein the thickened plate includes a first bolt hole penetrating the interior and a traction step arranged at one end away from the pump body; the first connecting bolt passes through the first bolt hole, and the rear end is fixedly connected to the traction step by a nut so as to tighten the pump body.
本发明的一种低应力往复泵，其中所述双立板结构包括与所述泵体的后端面贴合的第一立板、设置于所述第一立板后方的第二立板，以及第二连接螺栓；所述第一立板和第二立板均设有位置对应的定位孔；所述定位孔与所述函体的外侧面相配合；所述压紧法兰、第一立板和第二立板中均设有位置对应的安装孔，所述第二连接螺栓通过所述安装孔将所述压紧法兰、第一立板、第二立板与所述泵体连接在一起。The present invention provides a low-stress reciprocating pump, wherein the double vertical plate structure includes a first vertical plate that is in contact with the rear end surface of the pump body, a second vertical plate arranged behind the first vertical plate, and a second connecting bolt; the first vertical plate and the second vertical plate are both provided with corresponding positioning holes; the positioning holes cooperate with the outer side surface of the box body; the clamping flange, the first vertical plate and the second vertical plate are all provided with corresponding mounting holes, and the second connecting bolt connects the clamping flange, the first vertical plate, the second vertical plate and the pump body together through the mounting holes.
本发明的一种低应力往复泵，其中所述函体包括分别设置于两端的函体台阶；所述泵体的后端面设有第一台阶孔，所述压紧法兰的前端面设有第二台阶孔；前端的所述函体台阶与所述第一台阶孔相配合，后端的所述函体台阶与所述第二台阶孔相配合。A low-stress reciprocating pump according to the present invention, wherein the casing includes casing steps respectively arranged at both ends; the rear end face of the pump body is provided with a first step hole, and the front end face of the clamping flange is provided with a second step hole; the casing step at the front end cooperates with the first step hole, and the casing step at the rear end cooperates with the second step hole.
本发明的一种低应力往复泵，其中所述双立板结构进一步包括设置于所述压紧法兰中的调节螺母，所述函体包括设置于内部的函体填料，所述锥形定位套包括设置于后端的管形体；所述管形体和调节螺母用于从前后两端限制函体填料的位置。A low-stress reciprocating pump according to the present invention, wherein the double vertical plate structure further includes an adjusting nut arranged in the clamping flange, the box body includes a box body filler arranged inside, and the conical positioning sleeve includes a tubular body arranged at the rear end; the tubular body and the adjusting nut are used to limit the position of the box body filler from the front and rear ends.
本发明的一种低应力往复泵，其中所述锥形定位套包括从前至后依次设置于内部的第一通道、第二通道和第三通道；所述第一通道中设有进液筏板，所述第二通道中设有进液弹簧；所述柱塞组件的前端可往复地设置于所述第一通道和第二通道中。A low-stress reciprocating pump of the present invention, wherein the conical positioning sleeve includes a first channel, a second channel and a third channel which are sequentially arranged inside from front to back; a liquid inlet raft is arranged in the first channel, and a liquid inlet spring is arranged in the second channel; the front end of the plunger assembly can be reciprocated in the first channel and the second channel.
本发明的一种低应力往复泵，其中所述泵体进一步包括设置于所述内部前端的阀孔；所述阀孔中设有组合阀，以及设置于所述组合阀前端的阀压套；所述组合阀、阀压套用于与所述进液筏板配合控制出液；所述泵体的前端面设有前法兰。A low-stress reciprocating pump of the present invention, wherein the pump body further includes a valve hole arranged at the front end of the interior; a combination valve is arranged in the valve hole, and a valve pressing sleeve is arranged at the front end of the combination valve; the combination valve and the valve pressing sleeve are used to cooperate with the liquid inlet raft to control the liquid outflow; and a front flange is arranged on the front end face of the pump body.
本发明的一种低应力往复泵，其中所述机身进一步包括动力端曲轴、设置于所述动力端曲轴上的连杆、与所述连杆相配合的活塞结构；所述柱塞组件与所述活塞结构相连接。A low-stress reciprocating pump of the present invention, wherein the body further comprises a power end crankshaft, a connecting rod arranged on the power end crankshaft, and a piston structure matched with the connecting rod; the plunger assembly is connected to the piston structure.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明的整体结构示意图；Fig. 1 is a schematic diagram of the overall structure of the present invention;
图2为加厚板与第一连接螺栓的配合细节图；FIG2 is a detailed diagram of the cooperation between the thickened plate and the first connecting bolt;
图3为本发明的侧面半剖视图；Fig. 3 is a side half-section view of the present invention;
图4为本发明的侧面剖视图；FIG4 is a side cross-sectional view of the present invention;
图5为锥形定位套的配合示意图；FIG5 is a schematic diagram of the cooperation of the tapered positioning sleeve;
图6为调节螺母的配合示意图；Fig. 6 is a schematic diagram of the matching of the adjusting nut;
图7为双立板结构的放大图；FIG7 is an enlarged view of the double vertical plate structure;
图8为锥形定位套的剖视图；FIG8 is a cross-sectional view of a tapered positioning sleeve;
图9为机身的一侧剖视图。FIG. 9 is a side sectional view of the fuselage.
具体实施方式Detailed ways
在详细说明本发明的任何实施方式之前，应理解的是，本发明在其应用中并不限于以下描述阐述或以下附图图示的部件的构造和布置细节。本发明能够具有其他实施方式并且能够以各种方式实践或进行。另外，应理解的是，这里使用的措辞和术语出于描述的目的并且不应该被认为是限制性的。本文中使用“包括”或“具有”及其变型意在涵盖下文中陈列的条目及其等同物以及附加条目。除非另有指定或限制，否则术语“安装”、“连接”、“支撑”和“联接”及其变型被广泛地使用并且涵盖直接安装和间接的安装、连接、支撑和联接。此外，“连接”和“联接”不限于物理或机械的连接或联接。Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The present invention can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.
并且，第一方面，在本发明的揭露中，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系是基于附图所示的方位或位置关系，其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，因此上述术语不能理解为对本发明的限制；第二方面，术语“一”应理解为“至少一”或“一个或多个”，即在一个实施例中，一个元件的数量可以为一个，而在另外的实施例中，该元件的数量可以为多个，术语“一”不能理解为对数量的限制。Furthermore, on the first aspect, in the disclosure of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.
本领域的技术人员应理解，上述描述及附图中所示的本发明的实施例只作为举例而并不限制本发明。本发明的目的已经完整并有效地实现。本发明的功能及结构原理已在实施例中展示和说明，在没有背离所述原理下，本发明的实施方式可以有任何变形或修改。It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.
下面结合附图对本发明的实施例作进一步描述。The embodiments of the present invention are further described below in conjunction with the accompanying drawings.
请参阅图1-9，一种低应力往复泵，包括机身1和设置于机身1输出端的泵体2，机身1包括至少一组在泵体2内往复运动的柱塞组件11，Please refer to Figures 1-9, a low stress reciprocating pump includes a body 1 and a pump body 2 disposed at the output end of the body 1, the body 1 includes at least one group of plunger assemblies 11 reciprocating in the pump body 2,
机身1包括设置于两侧的加厚板12，以及贯穿设置于加厚板12中的第一连接螺栓13；第一连接螺栓13的前端固定连接于泵体2中，以便固定机身1与泵体2，并将应力集中与加厚板12中；The body 1 includes thickened plates 12 disposed on both sides, and first connecting bolts 13 penetrating the thickened plates 12; the front end of the first connecting bolts 13 is fixedly connected to the pump body 2 so as to fix the body 1 and the pump body 2 and concentrate stress in the thickened plates 12;
还包括套设于柱塞组件11外部的函体3；机身1包括设置于前端的双立板结构14，函体3设置于双立板结构14中，以使函体3获得径向定位；双立板结构14包括压紧法兰141，函体3的一端被压紧法兰141压紧，另一端抵住泵体2，以便减少函体3中的应力。It also includes a box body 3 sleeved on the outside of the plunger assembly 11; the fuselage 1 includes a double vertical plate structure 14 arranged at the front end, and the box body 3 is arranged in the double vertical plate structure 14 to enable the box body 3 to obtain radial positioning; the double vertical plate structure 14 includes a clamping flange 141, one end of the box body 3 is clamped by the clamping flange 141, and the other end is against the pump body 2 to reduce the stress in the box body 3.
实际使用时，本发明的机身1包括加厚板12和贯穿设置于加厚板12中的第一连接螺栓13，第一连接螺栓13的前端固定连接于泵体2中，因此在机身1与泵体2的连接中，应力主要由机身1来承受，泵体2承受应力较小，且受力面积较小，从而降低了泵体2开裂损坏的概率，加厚板12的壁厚相较于机身1其他位置厚度更大，强度更高，因此能够承受较大的应力，减少了机身1开裂损坏的概率；机身1包括双立板结构14，函体3设置于双立板结构14中，并通过压紧法兰141压紧，使得函体3与机身1、泵体2连成一体，减少了函体3受到的径向力和轴向力，从而降低了函体3开裂损坏的概率。In actual use, the fuselage 1 of the present invention includes a thickened plate 12 and a first connecting bolt 13 that penetrates the thickened plate 12. The front end of the first connecting bolt 13 is fixedly connected to the pump body 2. Therefore, in the connection between the fuselage 1 and the pump body 2, the stress is mainly borne by the fuselage 1, and the pump body 2 is subjected to less stress and has a smaller force-bearing area, thereby reducing the probability of cracking and damage of the pump body 2. The wall thickness of the thickened plate 12 is thicker and stronger than that of other positions of the fuselage 1, so it can withstand greater stress and reduce the probability of cracking and damage of the fuselage 1; the fuselage 1 includes a double vertical plate structure 14, and the box body 3 is arranged in the double vertical plate structure 14 and is clamped by a clamping flange 141, so that the box body 3 is connected to the fuselage 1 and the pump body 2 as a whole, reducing the radial force and axial force on the box body 3, thereby reducing the probability of cracking and damage of the box body 3.
请继续参阅图4、图5、图8，其中还包括锥形定位套4；锥形定位套4包括设置于前端的锥形体41，泵体2内部的后端设有锥形孔21；锥形体41的锥形外壁与锥形孔21的锥形内壁相贴合，以便减少函体3中的应力。Please continue to refer to Figures 4, 5 and 8, which also include a conical positioning sleeve 4; the conical positioning sleeve 4 includes a conical body 41 arranged at the front end, and a conical hole 21 is provided at the rear end inside the pump body 2; the conical outer wall of the conical body 41 fits with the conical inner wall of the conical hole 21 to reduce the stress in the box body 3.
使用时，通过锥形定位套4前端的锥形体41设计，能够使锥形体41的锥形外壁与锥形孔21的锥形内壁相贴合，分担了函体3、机身1、泵体2连接以及运行时三者承受的应力，从而减少了三者开裂损坏的概率。When in use, the design of the conical body 41 at the front end of the conical positioning sleeve 4 allows the conical outer wall of the conical body 41 to fit with the conical inner wall of the conical hole 21, thereby sharing the stress borne by the box body 3, the fuselage 1, and the pump body 2 during connection and operation, thereby reducing the probability of cracking and damage of the three.
请继续参阅图1-3，其中，加厚板12包括贯穿设置于内部的第一螺栓孔121，以及设置于远离泵体2一端的着力台阶122；第一连接螺栓13穿过第一螺栓孔121，且后端通过螺母固定连接于着力台阶122上，以便拉紧泵体2。Please continue to refer to Figures 1-3, in which the thickened plate 12 includes a first bolt hole 121 that penetrates the interior and a force step 122 that is arranged at one end away from the pump body 2; the first connecting bolt 13 passes through the first bolt hole 121, and the rear end is fixedly connected to the force step 122 by a nut to tighten the pump body 2.
使用时，通过上述设计，能够把机身1与泵体2连接的应力集中点设置在两侧强度较高的加厚板12上，从而保护机身1与泵体2。When in use, through the above design, the stress concentration point connecting the fuselage 1 and the pump body 2 can be set on the thickened plates 12 with higher strength on both sides, thereby protecting the fuselage 1 and the pump body 2.
值得一提的是，机身1与泵体2的具体连接方法为：It is worth mentioning that the specific connection method between the fuselage 1 and the pump body 2 is:
S1:在泵体2后端面的两侧套丝；S1: threading on both sides of the rear end surface of the pump body 2;
S2:将第一连接螺栓13穿过第一螺栓孔121，并使前端与泵体2相连接；S2: Pass the first connecting bolt 13 through the first bolt hole 121 and connect the front end to the pump body 2;
S3:在第一螺栓孔121的后端设置螺母，并使螺母与着力台阶122紧密配合；S3: a nut is arranged at the rear end of the first bolt hole 121, and the nut is closely matched with the force step 122;
S4:在每块加厚板12中设置至少两组第一连接螺栓13。S4: At least two groups of first connecting bolts 13 are arranged in each thickened plate 12.
请继续参阅图4-7，其中，双立板结构14包括与泵体2的后端面贴合的第一立板142、设置于第一立板142后方的第二立板143，以及第二连接螺栓144；第一立板142和第二立板143均设有位置对应的定位孔145；定位孔145与函体3的外侧面相配合；压紧法兰141、第一立板142和第二立板143中均设有位置对应的安装孔146，第二连接螺栓144通过安装孔146将压紧法兰141、第一立板142、第二立板143与泵体2连接在一起。Please continue to refer to Figures 4-7, in which the double vertical plate structure 14 includes a first vertical plate 142 that is in contact with the rear end surface of the pump body 2, a second vertical plate 143 arranged behind the first vertical plate 142, and a second connecting bolt 144; the first vertical plate 142 and the second vertical plate 143 are both provided with corresponding positioning holes 145; the positioning holes 145 are matched with the outer side surface of the box body 3; the clamping flange 141, the first vertical plate 142 and the second vertical plate 143 are all provided with corresponding mounting holes 146, and the second connecting bolt 144 connects the clamping flange 141, the first vertical plate 142, the second vertical plate 143 and the pump body 2 together through the mounting holes 146.
使用时，函体3是通过压紧法兰141的压紧作用与泵体2连接的，且第二连接螺栓144一次穿过压紧法兰141、第一立板142和第二立板143中的安装孔146，并于泵体2中的对应孔位固定连接，相较于直接在函体3本体上设置紧固件与泵体2连接，采用压紧法兰141能够使函体3受到的径向力和轴向力更小，从而防止函体3的开裂；定位孔145与函体3的外侧面相配合，使得函体3的位置更加精准，且函体3的外壁被前后设置的第一立板142和第二立板143中的定位孔145包住，从前后两个位置限制了函体3的径向张力，进一步防止函体3的开裂。When in use, the box body 3 is connected to the pump body 2 by the clamping action of the clamping flange 141, and the second connecting bolt 144 passes through the clamping flange 141, the first vertical plate 142 and the mounting holes 146 in the second vertical plate 143 at one time, and is fixedly connected to the corresponding hole position in the pump body 2. Compared with directly arranging fasteners on the main body of the box body 3 to connect with the pump body 2, the use of the clamping flange 141 can make the radial force and axial force on the box body 3 smaller, thereby preventing the box body 3 from cracking; the positioning hole 145 cooperates with the outer side surface of the box body 3, so that the position of the box body 3 is more precise, and the outer wall of the box body 3 is surrounded by the positioning holes 145 in the first vertical plate 142 and the second vertical plate 143 arranged at the front and rear, which limits the radial tension of the box body 3 from the front and rear positions, and further prevents the box body 3 from cracking.
值得一提的是，请进一步参阅图1、图4，根据实际受力情况，可以在压紧法兰141上绕着函体3均匀设置多枚第二连接螺栓144；优选的，第二连接螺栓144被实施为4枚或6枚。It is worth mentioning that, please further refer to FIG. 1 and FIG. 4 , according to the actual stress conditions, a plurality of second connecting bolts 144 can be evenly arranged around the box body 3 on the clamping flange 141; preferably, the second connecting bolts 144 are implemented as 4 or 6.
请继续参阅图4-7，其中，函体3包括分别设置于两端的函体台阶31；泵体2的后端面设有第一台阶孔22，压紧法兰141的前端面设有第二台阶孔1411；前端的函体台阶31与第一台阶孔22相配合，后端的函体台阶31与第二台阶孔1411相配合。Please continue to refer to Figures 4-7, in which the box body 3 includes box body steps 31 respectively arranged at both ends; the rear end face of the pump body 2 is provided with a first step hole 22, and the front end face of the clamping flange 141 is provided with a second step hole 1411; the box body step 31 at the front end cooperates with the first step hole 22, and the box body step 31 at the rear end cooperates with the second step hole 1411.
使用时，通过前后两端的函体台阶31设置，以及第一台阶孔22、第二台阶孔1411的设置，使得函体3两端得到了定位，与定位孔145的配合下，定位效果更佳，且两端的函体台阶31还具有密封的作用。When in use, the two ends of the box body 3 are positioned by setting the box body steps 31 at the front and rear ends, and setting the first step hole 22 and the second step hole 1411. With the cooperation of the positioning hole 145, the positioning effect is better, and the box body steps 31 at both ends also have a sealing function.
请继续参阅图4-7，其中，双立板结构14进一步包括设置于压紧法兰141中的调节螺母147，函体3包括设置于内部的函体填料32，锥形定位套4包括设置于后端的管形体42；管形体42和调节螺母147用于从前后两端限制函体填料32的位置。Please continue to refer to Figures 4-7, in which the double vertical plate structure 14 further includes an adjusting nut 147 arranged in the clamping flange 141, the box body 3 includes a box body filler 32 arranged inside, and the conical positioning sleeve 4 includes a tubular body 42 arranged at the rear end; the tubular body 42 and the adjusting nut 147 are used to limit the position of the box body filler 32 from the front and rear ends.
使用时，管形体42和调节螺母147可以作为函体填料32的前止位点和后止位点，以便固定函体填料32的位置；此外，调节螺母147为中空结构，其中设有供柱塞组件11通过的通道。When in use, the tubular body 42 and the adjusting nut 147 can serve as the front stop point and the rear stop point of the box filler 32 to fix the position of the box filler 32; in addition, the adjusting nut 147 is a hollow structure, in which a channel for the plunger assembly 11 to pass through is provided.
请继续参阅图4-8，其中，锥形定位套4包括从前至后依次设置于内部的第一通道43、第二通道44和第三通道45；第一通道中设有进液筏板431，第二通道44中设有进液弹簧441；柱塞组件11的前端可往复地设置于第一通道43和第二通道44中。Please continue to refer to Figures 4-8, in which the conical positioning sleeve 4 includes a first channel 43, a second channel 44 and a third channel 45 arranged inside from front to back; a liquid inlet raft 431 is provided in the first channel, and a liquid inlet spring 441 is provided in the second channel 44; the front end of the plunger assembly 11 can be reciprocated in the first channel 43 and the second channel 44.
使用时，通过柱塞组件11在第一通道43和第二通道44中的往复运动，配合进液弹簧441的伸缩，可以驱使进液筏板431做出开阀或关阀的动作，以便气体或液体进入泵体2中。When in use, the reciprocating motion of the plunger assembly 11 in the first channel 43 and the second channel 44 and the expansion and contraction of the liquid inlet spring 441 can drive the liquid inlet raft 431 to open or close the valve so that gas or liquid can enter the pump body 2.
请继续参阅图4，其中，泵体2进一步包括设置于内部前端的阀孔23；阀孔23中设有组合阀24，以及设置于组合阀24前端的阀压套25；组合阀24、阀压套25用于与进液筏板431配合控制出液；泵体2的前端面设有前法兰5。Please continue to refer to Figure 4, in which the pump body 2 further includes a valve hole 23 arranged at the internal front end; a combination valve 24 is arranged in the valve hole 23, and a valve pressure sleeve 25 is arranged at the front end of the combination valve 24; the combination valve 24 and the valve pressure sleeve 25 are used to cooperate with the liquid inlet raft plate 431 to control the liquid outflow; the front end face of the pump body 2 is provided with a front flange 5.
在柱塞组件11往复运动的过程中，进液筏板431也随之处于反复开合状态，当进液筏板431开启，气体或液体即可从组合阀24的中的流道进入泵体2，当进液筏板431关闭，组合阀24的中的流道关闭，气体或液体无法进入。During the reciprocating motion of the plunger assembly 11, the liquid inlet raft 431 is also in a repeated opening and closing state. When the liquid inlet raft 431 is opened, gas or liquid can enter the pump body 2 from the flow channel in the combination valve 24. When the liquid inlet raft 431 is closed, the flow channel in the combination valve 24 is closed, and gas or liquid cannot enter.
请继续参阅图1、图3、图9，其中，机身1进一步包括动力端曲轴15、设置于动力端曲轴15上的连杆16、与连杆16相配合的活塞结构17；柱塞组件11与活塞结构17相连接。Please continue to refer to Figures 1, 3 and 9, wherein the fuselage 1 further includes a power end crankshaft 15, a connecting rod 16 disposed on the power end crankshaft 15, and a piston structure 17 matched with the connecting rod 16; the plunger assembly 11 is connected to the piston structure 17.
使用时，动力端曲轴15用于外接动力源，并在动力源的带动下转动，连杆16在动力端曲轴15的带动下，将动力端曲轴15的旋转运动转化为活塞结构17的往复运动，柱塞组件11在活塞结构17的带动下实现往复运动，从而泵入气体或液体。When in use, the power end crankshaft 15 is used to be connected to an external power source and rotates under the drive of the power source. The connecting rod 16, driven by the power end crankshaft 15, converts the rotational motion of the power end crankshaft 15 into the reciprocating motion of the piston structure 17. The plunger assembly 11 realizes reciprocating motion under the drive of the piston structure 17, thereby pumping in gas or liquid.
请继续参阅图1、图9，在一些实施例中，柱塞组件11被实施为多组，且通过多组连杆16和活塞结构17连接于动力端曲轴15的不同位置，以便在动力端曲轴15旋转的各个阶段均有柱塞组件11做功，使得本发明的泵效更高。Please continue to refer to Figures 1 and 9. In some embodiments, the plunger assembly 11 is implemented as multiple groups and connected to different positions of the power end crankshaft 15 through multiple groups of connecting rods 16 and piston structures 17, so that the plunger assembly 11 can do work in each stage of the rotation of the power end crankshaft 15, making the pump efficiency of the present invention higher.
以上仅就本发明的最佳实施例作了说明，但不能理解为是对权利要求的限制。本发明不仅局限于以上实施例，其具体结构允许有变化。凡在本发明独立权利要求的保护范围内所作的各种变化均在本发明保护范围内。The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410086363.5ACN117869292B (en) | 2024-01-22 | 2024-01-22 | Low-stress reciprocating pump |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410086363.5ACN117869292B (en) | 2024-01-22 | 2024-01-22 | Low-stress reciprocating pump |
| Publication Number | Publication Date |
|---|---|
| CN117869292Atrue CN117869292A (en) | 2024-04-12 |
| CN117869292B CN117869292B (en) | 2025-05-06 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410086363.5AActiveCN117869292B (en) | 2024-01-22 | 2024-01-22 | Low-stress reciprocating pump |
| Country | Link |
|---|---|
| CN (1) | CN117869292B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000170643A (en)* | 1998-09-30 | 2000-06-20 | Maruyama Mfg Co Ltd | Multiple reciprocating pump |
| CN2433411Y (en)* | 2000-07-14 | 2001-06-06 | 张安东 | Crank connecting rod type plunger mud pump |
| CN108533484A (en)* | 2017-03-06 | 2018-09-14 | 米顿罗工业设备（上海）有限公司 | A kind of reciprocating pump packing seal structure suitable for high-temperature medium |
| CN213870247U (en)* | 2020-10-28 | 2021-08-03 | 普沃(天津)科技有限公司 | Hydraulic end of three-plunger reciprocating ultrahigh pressure plunger pump |
| US20220282719A1 (en)* | 2021-03-05 | 2022-09-08 | Caterpillar Inc. | Reciprocating Pump Fluid Cylinder Sleeve Assembly |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000170643A (en)* | 1998-09-30 | 2000-06-20 | Maruyama Mfg Co Ltd | Multiple reciprocating pump |
| CN2433411Y (en)* | 2000-07-14 | 2001-06-06 | 张安东 | Crank connecting rod type plunger mud pump |
| CN108533484A (en)* | 2017-03-06 | 2018-09-14 | 米顿罗工业设备（上海）有限公司 | A kind of reciprocating pump packing seal structure suitable for high-temperature medium |
| CN213870247U (en)* | 2020-10-28 | 2021-08-03 | 普沃(天津)科技有限公司 | Hydraulic end of three-plunger reciprocating ultrahigh pressure plunger pump |
| US20220282719A1 (en)* | 2021-03-05 | 2022-09-08 | Caterpillar Inc. | Reciprocating Pump Fluid Cylinder Sleeve Assembly |
| Publication number | Publication date |
|---|---|
| CN117869292B (en) | 2025-05-06 |
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