CN2172358Y - Diaphragm maximum bending mechanical self-controlling mechanism for hydraulic bellows pump - Google Patents

Diaphragm maximum bending mechanical self-controlling mechanism for hydraulic bellows pump Download PDF

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Publication number
CN2172358Y
CN2172358Y CN 93220573 CN93220573U CN2172358Y CN 2172358 Y CN2172358 Y CN 2172358Y CN 93220573 CN93220573 CN 93220573 CN 93220573 U CN93220573 U CN 93220573U CN 2172358 Y CN2172358 Y CN 2172358Y
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diaphragm
pump
deflection
utility model
control
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CN 93220573
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Chinese (zh)
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赵胜
张生昌
叶晓瑛
李强
薛胜雄
许诚
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机械电子工业部合肥通用机械研究所
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Abstract

The utility model relates to a diaphragm maximum deflection self-controlling mechanism for pumps, which is composed of pure machinery such as a diaphragm (2), a control rod (4), a plunger (5), etc. The utility model has no electric elements and can automatically adjust the oil mass of the liquid chamber of a diaphragm pump. The utility model ensures the stability of pump performance, ensures the maximum value of diaphragm deflection within the designed range, prevents diaphragm rupture caused by that diaphragm deflection surpasses the designed range, ensures service life and subtracts a front and a back diaphragm limiting plate which are usually required by the diaphragm pump. The utility model not only has the advantages of material saving and labor saving, but makes the pump even more adapt to convey medium such as suspension liquid, mud pulp, etc.

Description

本实用新型属于液压隔膜泵用的一种新型机械式控制机构,更详细地说,是一种液压隔膜泵用机械式自动控制隔膜最大挠曲机构。 A novel mechanical control mechanism of the present invention with part of the hydraulic diaphragm pump, more particularly, a hydraulic diaphragm pump is automatically controlled by a mechanical diaphragm maximum deflection mechanism.

目前,所见的国内外使用的隔膜最大挠曲控制机构有三种。 Currently, the maximum deflection of the diaphragm control mechanism used at home and abroad have seen three. 第一种,采用电磁方式来控制隔膜的最大挠曲机构。 First, electromagnetic manner to control the maximum deflection of the diaphragm means. 国外著名的隔膜泵制造厂——荷兰GEHO泵公司是采用这种技术制造隔膜泵的。 Famous manufacturer of diaphragm pumps - the Netherlands GEHO pumps companies are using this technology to produce diaphragm pump. 如图2所示,它是由电磁控制杆(10)、电磁控制探头(2a/2b)、补液排液阀(3a/3b)、油腔(11)、油腔稳压器(11a)、调压器(12)、调压器隔膜(13)、活塞(14)、压力开关(15)、缸套(16)、活塞杆(17)、隔膜(18)、稳压器(21)和泥浆腔(22)等组成。 2, which is controlled by a solenoid rod (10), electromagnetic control probe (2a / 2b), fluid discharge valve (3a / 3b), the oil chamber (11), the oil chamber regulator (11a), voltage regulator (12), the regulator diaphragm (13), a piston (14), pressure switch (15), the liner (16), a piston rod (17), a diaphragm (18), the regulator (21) and mud chamber (22) and the like. 该机构通过控制杆磁体和非磁体组合处的非电转化,提高供电磁信号,指挥补液、排液阀3a/3b工作,以补偿不足的油排出多余的油,因机电一体,结构复杂,而且因动作仅在毫秒和微秒之间发生,易发生故障,可靠性较差,一旦元件出故障,就不能正常工作。 The mechanism by controlling the non-electric conversion rod magnet and a non-magnetic composition at improved for electromagnetic signals, the command fluid, the discharge valve 3a / 3b work to insufficient compensation of oil discharging excess oil, because mechanical and electrical integration, complex structure, and action occurs because only between microseconds and milliseconds, prone to failure, poor reliability, once the failure element, will not work. 第二种是采用补偿控制阀式,控制隔膜后死点最大挠曲的隔膜泵。 The second compensation control valve is employed to control the maximum deflection of the diaphragm after the diaphragm dead point. 国外著名计量制造公司——德国LEWA泵公司及日本NIKKISO(日机装)公司,便采用该技术生产隔膜计量泵,其液力端结构如图3所示,是由隔膜(23)、报警装置(26)、安全排气阀(27)、补偿控制阀(28)、柱塞(29)和补偿阀(30)等零部件组成。 Measurement famous manufacturing companies - Germany and Japan NIKKISO LEWA Pumps (Nikkiso) company, will use the technology to produce diaphragm metering pump fluid end structures shown in Figure 3, it is a diaphragm (23), alarm means (26), the safety vent valve (27), the compensation control valve (28), the plunger (29) and the compensation valve (30) and other component parts. 该技术在小型隔计量泵上广泛使用。 This technology is widely used in small metering pump compartment. 它能控制隔膜后死点挠曲,前死点挠曲是靠前限位板,虽然能正常放油补油,但因隔膜腔内压力在放油时高于泵的排出压力,易造成隔膜局部应力过大而损坏,或产生永久变形,也不适应输送非洁净液体。 It can control the deflection of the diaphragm dead center, before top dead center is a forward limit deflection plate, although normally put the oil up the oil, but the diaphragm chamber pressure is higher than the discharge pressure of the pump when the discharge of oil, easily lead to the separator local excessive stress damage or permanent deformation, do not meet the non-clean liquid transport. 第三种是具有前后隔膜前后限制板的结构见图4。 The third structure is shown having a front plate 4 before and after the restriction the diaphragm. 是由柱塞(31),填料(32),前后限位板(33),补偿一安全装置(34),排出阀(35)、隔膜(36),吸入阀(37)等部件构成,靠限位板控制前后挠曲变形。 Is a plunger (31), a filler (32), front and rear stopper plate (33), compensating a safety device (34), the discharge valve (35), a diaphragm (36), a suction valve (37) or the like member constituted by front panel control limit deflection. 当油量过少,隔膜紧靠后限制板,形成真空补油,当油量过多时,隔膜紧靠前限制板,压力上升,安全阀开启排油。 When the amount of oil is too small, the restriction plate abuts against the diaphragm, forming a vacuum up the oil, when the excess oil, the restriction plate abuts against the front diaphragm, the pressure rises, the drain valve open. 这是典型传统的隔膜计量泵机构,仅适用于小型输送纯净介质的隔膜泵。 This is a typical traditional diaphragm metering pump mechanism, only for small diaphragm pump conveying pure medium.

本实用新型的目的是提出一种新型机械式的自控隔膜最大挠曲机构,用于隔膜泵,使隔膜的挠曲弯形通过简单的液压补偿机构控制在设计所需的范围之内,克确保隔膜的正常工作,延长其使用的寿命,而且构造简单,工作可靠,加工又很方便。 Object of the present invention is to provide a novel mechanical means controlled maximum deflection the diaphragm, diaphragm pumps for the curved deflection of the diaphragm is controlled by a simple hydraulic compensating mechanism within the design of a desired range, to ensure g normal operation of the separator, used to extend its life, and simple structure, reliable, and very easy to process.

图1、液压隔膜泵用隔膜最大挠曲自控机构结构示意图图2、荷兰GEHO泵公司隔膜泵示意图图3、德国LEWA泵公司隔膜泵简图图4、带前后限位的隔膜泵简图本实用新型是通过以下技术内容来实现的:该实用新型如图1所示,它是由隔膜(2)、控制杆(4)、柱塞(或活塞)(5)、补偿阀(6)、控制阀(7)等构成,当隔膜(2)前后挠曲变形时,带动控制杆(4)在泵体(9)的腔体(f)中前后往复运动,控制杆(4)中心有一长孔(a),通过小孔(b)与具有呈定尺寸的环形槽(c)相连,在泵体(9)中,接近环形槽(C)的(A)处,设有补偿阀(6),通过孔道(d),把外系统液体与泵中腔体(f)相通,在接近环形槽(C)的(B)处,设有控制阀(7),通过孔道(e),把外系统的液体与腔体(f)相通。 1, a hydraulic diaphragm pump 2, Netherlands company GEHO diaphragm pump schematic view of a separator mechanism maximum deflection controlled structural diagram of Figure 3, the German company LEWA diaphragm pump diagram of FIG. 4, the diaphragm with front and rear schematic view of the present invention limit model is achieved by the following technical elements: the invention as shown, which is a diaphragm (2), a control (4), a plunger (or piston) (5), compensation valve (6), the control valve (7) or the like, a long hole when the membrane (2) before and after the deflection, to drive the control lever (4) to reciprocate back and forth in (f) in the pump body (9) of the cavity, the lever (4) has (a), through the apertures (b) having the form of an annular groove sized (c) is connected to the pump body (9), the proximity of the annular groove (C), (a), with compensation valve (6) through channel (D), the outside of the system and the liquid pump chamber (f) communicating, proximate the annular groove (C), (B) at a control valve (7), through duct (E), the outer liquid system with the cavity (f) communication. 从图1中可见,当柱塞(5)向右运动时,隔膜(2)也受压向右挠曲变形,其相连的控制杆也随之向右移动一距离,当油量过量时,环形槽(c)与通道(e)相通,液体就从控制阀(7)排出,从而保证了隔膜向右挠曲不超出右极限挠度;当柱塞(5)向左运动时,造成泵体(9)内负压,隔膜向左挠曲,带动连杆也向左运动,当油量不足时,环形槽(C)与通道(d)相通,液体就从补偿阀(6)流入,这样就保证了隔膜向左挠曲也不超过左极限挠度,达到了自动控制隔膜最大挠曲变形的目的。 Seen in Figure 1, when the piston (5) moves to the right, the separator (2) is also pressed to the right deflection, which also will be connected to the control rod moved to the right a distance, when excess fuel, an annular groove (c) a passage (e) communicating, the liquid is discharged from the control valve (7), so as to ensure the deflection of the diaphragm to the right beyond the right does not limit deflection; when the plunger (5) moves to the left, causing the pump body (9) a negative pressure, the diaphragm deflection to the left, drive rod also moves to the left, when the fuel shortage, the annular groove (C) and the passage (D) communicating, the liquid (6) flows from the compensation valve, so It ensures deflection of the diaphragm to the left than the left does not limit the deflection to achieve the purpose of automatic control maximum deflection of the diaphragm.

该发明与荷兰GEHO泵公司的隔膜泵迥然不同,见图2,GEHO公司采用电磁控制杆(1)、电磁控制探头(2a/2b)方式控制隔膜挠曲,需要非电转化及二次仪表,毫秒或微秒级信号传递时间差问题难以解决,是一种电磁方式控制隔膜泵隔膜挠曲的机构,结构复杂,可靠性较差,而本发明是机械控制,无二次仪表及信号传递的问题,属纯机械式控制隔膜最大挠曲的机构。 The invention relates to the Netherlands GEHO diaphragm pump very different companies, see Figure 2, GEHO adoption electromagnetic control lever (1), an electromagnetic control probe (2a / 2b) controlled deflection of the diaphragm, and the second conversion requires a non-electrical instruments, microsecond or millisecond time difference signal transmission problems difficult to solve, is an electromagnetically controlled diaphragm pump diaphragm deflection means, a complicated structure, poor reliability, and mechanical control of the present invention, no secondary instrumentation and signal transmission problems , are purely mechanical separator maximum deflection control mechanism.

本发明与德国LEWA泵公司以及日本Nikkiso公司同类机构的区别在于:后两者都需要增加前后限制板或前限制板,是靠限制板限制隔膜最大挠曲变形,一旦油量过多,可从安全阀排放多余的油,但隔膜腔内压力高于排出压力,隔膜局部应力过大,可能造成隔膜永久变形或破裂。 Present invention differs from the German company and similar institutions LEWA pump Nikkiso Company of Japan that: the need to increase both the front and rear or the front restriction plate restricting plate, is restricted by limiting the maximum flexural deformation of the diaphragm plate, once the excess oil can be obtained from excess oil discharge valve, but the chamber pressure is higher than the discharge pressure of the diaphragm, local stress is too large the separator, the separator may cause permanent deformation or rupture. 本发明隔膜的前后死点以及前后最大挠曲弯形均可控制,不会发生油量过多或不足现象。 Before and after the dead separator of the invention and the maximum deflection of the front and rear curved shape can be controlled, excessive or insufficient amount of oil does not occur.

下面结合实施例对本实用新型作进一步的阐明;如图1所示;隔膜(2)用公知的聚氨脂橡胶或聚四氟乙烯压制而成的,控制杆用45号钢表面镀N-P合金、柱塞5用45号钢车制而成后经热处理,其余部件可用一般碳钢加工而成。 Further clarified below in connection with embodiments of the present invention for the embodiment; FIG. 1; the separator (2) by a known urethane rubber or polytetrafluoroethylene repression of the control lever with the N-P plated steel surface 45 after the alloy, the piston 5 with the vehicle system 45 from the heat-treated steel, the remaining components generally available carbon steel processing.

Claims (1)

  1. 1.液压隔膜泵用隔膜最大挠曲机械式自控机构见图1,它是由隔膜(2)、控制杆(4)、柱塞(5)、补偿阀(6)、控制阀(7)及安全放气阀(8)等组成,其特征在于:A、控制杆(4)与隔膜(2)中心部分联成一体,并随隔膜的挠曲变形作往复运动;B、控制杆中心有一长孔(a),通过小孔(b)与具有一定匹配尺寸的环形槽(C)连通;C、在泵体(9)中,靠近环形槽(C)的A处,设有补偿阀(6),通过孔道(d)与泵中腔体(f)相通,靠近环形槽(C)的(B)处,设有控制阀(7),通过孔道(d)和(e)与泵中腔体(f)相通,以控制隔膜最大挠曲变形量。 The hydraulic diaphragm pump 1 shown in Figure 1. The maximum deflection of the mechanical separator controlled mechanism, which is a diaphragm (2), the control lever (4), a plunger (5), compensation valve (6), a control valve (7) and safety discharge valve (8) and the like, wherein: the central portion a, the control lever (4) and the separator (2) into one, and with the flexural deformation of the diaphragm reciprocates; B, the lever has a long hole (a), in communication with the annular groove (C) having a certain size through matching apertures (b); C, in the pump body (9), a is near the annular groove (C) is provided with compensation valve (6 ), the cavity communicating with the pump (f) through a duct (D), close to the annular groove (C) at (B), a control valve (7), by a duct (d) and (e) in the pump chamber body (f) communication, to control the maximum amount of deformation of the diaphragm deflection.
CN 93220573 1993-08-06 1993-08-06 Diaphragm maximum bending mechanical self-controlling mechanism for hydraulic bellows pump CN2172358Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93220573 CN2172358Y (en) 1993-08-06 1993-08-06 Diaphragm maximum bending mechanical self-controlling mechanism for hydraulic bellows pump

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Application Number Priority Date Filing Date Title
CN 93220573 CN2172358Y (en) 1993-08-06 1993-08-06 Diaphragm maximum bending mechanical self-controlling mechanism for hydraulic bellows pump

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CN2172358Y true CN2172358Y (en) 1994-07-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1788162B (en) 2003-05-16 2010-11-10 旺纳工程股份有限公司 Diaphragm pumps
CN102352831A (en) * 2011-10-24 2012-02-15 重庆水泵厂有限责任公司 Automatic oil charging and discharging device of diaphragm pump
CN103154517A (en) * 2010-08-26 2013-06-12 卓越剂量技术有限公司 Membrane pump having an inertially controlled leak extension valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1788162B (en) 2003-05-16 2010-11-10 旺纳工程股份有限公司 Diaphragm pumps
CN103154517A (en) * 2010-08-26 2013-06-12 卓越剂量技术有限公司 Membrane pump having an inertially controlled leak extension valve
CN103154517B (en) * 2010-08-26 2016-01-20 卓越有限公司 Leakage compensation valve has a diaphragm-controlled inertia
CN102352831A (en) * 2011-10-24 2012-02-15 重庆水泵厂有限责任公司 Automatic oil charging and discharging device of diaphragm pump

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