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JPS6036789A - Electromagnetically driven reciprocating pump - Google Patents

Electromagnetically driven reciprocating pump

Info

Publication number
JPS6036789A
JPS6036789A JP58145903A JP14590383A JPS6036789A JP S6036789 A JPS6036789 A JP S6036789A JP 58145903 A JP58145903 A JP 58145903A JP 14590383 A JP14590383 A JP 14590383A JP S6036789 A JPS6036789 A JP S6036789A
Authority
JP
Japan
Prior art keywords
plunger
permeable plate
magnetic
bearing metal
conductive plate
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP58145903A
Other languages
Japanese (ja)
Inventor
Masaru Hiraiwa
勝 平岩
Ryozo Suzuki
良三 鈴木
Isamu Takashita
高下 偉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP58145903A priority Critical patent/JPS6036789A/en
Publication of JPS6036789A publication Critical patent/JPS6036789A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04Pumps having electric drive

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)

Abstract

PURPOSE:To reduce the number of parts and stabilize the operating characteristic of the pump by a method wherein the bearing metal of a plunger is held by a magnetic permeable plate in a magnetic circuit formed by the exciting of a solenoid coil and the magnetic permeable plate is arranged at the side of one end of the plunger serving as a flange in combination. CONSTITUTION:When the solenoid coil 3 is excited, the magnetic circuit, passing through the permeable plate 4, is formed and the plunger 5 is attracted to a plunger receiver 2. The magnetic permeable plate 4 holds the bearing metal 10 of the plunger 5, is arranged at the side of one end of the plunger 5 serving as a flange in combination, therefore, the number of components may be reduced. The inner and outer peripheries of the permeable plate 4 are formed simultaneously by forging and the outer periphery is fitted to a yoke 1, therefore, deformation due to the age variation of the permeable plate 4 becomes very small. According to this method, the abrasion of the bearing metal 10, engaged with and held by the inner periphery of the magnetic permeable plate 4, or the non- operation of a shaft 6 may be prevented and the stabilized operation characteristic may be obtained.

Description

【発明の詳細な説明】 この発明は磁気回路中の導磁板に、プランジャの軸受メ
タルを設けた電磁駆動式往復動ポンプに関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electromagnetically driven reciprocating pump in which a bearing metal of a plunger is provided on a magnetically conductive plate in a magnetic circuit.

まず、従来の往復動ポンプを第1図により説明する。な
お、このポンプは、たとえば、自動車用燃料ポンプとし
て使用される。
First, a conventional reciprocating pump will be explained with reference to FIG. Note that this pump is used, for example, as a fuel pump for automobiles.

第1図において、(1)は筒状のヨークで、このヨーク
(1)内の中央にはプランジャ受(2)が固定され、か
つプランジャ受(2)の外周には電磁コイル(3)が巻
装されている。(4)は導la Jljで、電磁コイル
(3)の下部において、ヨーク(1)の内周部に1を合
固定されている。(6)はプランジャ受(2)の中心部
に昇降自在に嵌挿されたシャフトで、このシャフト(6
)の中間部にはプランジャ(5)がプランジャ受(2)
の下部に対向して固定され、かつシャフト(6)’の下
端には、ダイヤフラム(7)の中央部分が固定されてい
る。(8)はクッション材で、プランジャ受(2)の下
端部に、プランジャ(5)に対向して設けられている。
In Figure 1, (1) is a cylindrical yoke, a plunger receiver (2) is fixed in the center of this yoke (1), and an electromagnetic coil (3) is attached to the outer periphery of the plunger receiver (2). It is wrapped. (4) is a conductor la Jlj, which is fixed to the inner peripheral part of the yoke (1) at the lower part of the electromagnetic coil (3). (6) is a shaft inserted into the center of the plunger receiver (2) so that it can rise and fall freely.
) is the plunger (5) in the middle part of the plunger receiver (2).
The central portion of the diaphragm (7) is fixed to the lower end of the shaft (6)'. (8) is a cushioning material, which is provided at the lower end of the plunger receiver (2) so as to face the plunger (5).

(9)はダイヤフラム(7)と導磁板(4)間に配置さ
れたフランジで、このフランジ(9)の中央部にはシャ
フト(6)の下部を支持した軸受メタル(io)が固定
され、またシャツ1−(6)の1一部を支持した軸受メ
タル(11)はプランジャ畳(2)に固定されている。
(9) is a flange placed between the diaphragm (7) and the magnetically conductive plate (4), and a bearing metal (io) that supports the lower part of the shaft (6) is fixed to the center of this flange (9). Also, a bearing metal (11) that supported a part of the shirt 1-(6) is fixed to the plunger mat (2).

フランジ(9)の周縁部はポンプベース(12)とヨー
ク(1)との間に挟着固定され、かつダイヤフラム(7
)の周縁部はポンプベース(12)とポンプ本体(13
)との間に挟着固定されている。(14)はポンプベー
ス(12)内において、ダイヤフラム(7)に設けたば
ね受(15)ど、1−記フランジ(9)との間に介装さ
れた圧縮ばねである。
The peripheral edge of the flange (9) is clamped and fixed between the pump base (12) and the yoke (1), and the diaphragm (7)
) is connected to the pump base (12) and the pump body (13).
) is clamped and fixed between the (14) is a compression spring interposed in the pump base (12) between the spring receiver (15) provided on the diaphragm (7) and the flange (9).

−1−記ボンプ本体(13)の下部には、底部が力/<
−(16)により閉じられた第1ポンプ室(17)と1
.、これの側部に位置した第3ポンプ室(19)とが形
成され、また、−に部には、上面部がダイヤフラム(7
)により閉じられ、かつダイヤフラム(7)の駆動によ
り、容積を増減する第2ポンプ室(18)が形成されて
いる。第1ポンプ室(17)は吸入ボート(20)を、
第3ポンプ室(19)は吐出ポー)(21)をそれぞれ
備えている。第2ポンプ室(18)の底部には、第1ポ
ンプ室(17)からの吸入弁(22)と、第3ポンプ室
(19)への吐出弁(23)とが配置され、この吸入弁
(22)および吐出弁(23)はそれぞれの圧縮ばね(
24)、(25)により閉弁状態に抑圧保持されている
-1- At the bottom of the pump body (13), the bottom part has a force/<
- the first pump chamber (17) and 1 closed by (16);
.. , a third pump chamber (19) located on the side of this is formed, and a diaphragm (7) is formed on the upper surface of the negative part.
), and a second pump chamber (18) whose volume increases or decreases by driving the diaphragm (7) is formed. The first pump chamber (17) has a suction boat (20),
The third pump chambers (19) each include a discharge port (21). A suction valve (22) from the first pump chamber (17) and a discharge valve (23) to the third pump chamber (19) are arranged at the bottom of the second pump chamber (18). (22) and the discharge valve (23) are connected to their respective compression springs (
24) and (25) keep the valve closed.

さらに、第1図において、シャフト(6)のヨーク(1
)1−に突出した部分には、スイッチ(26)の+i丁
動接点(27)を固定接点(28)に接幽させるスイッ
チ切換機構(29)が連結され、また、スイッチ(26
)は上記コイル(3)と直列接続されている。(30)
はスイッチ(26)とその切換機構(29)とを覆った
保護カバーである。
Furthermore, in FIG. 1, the yoke (1) of the shaft (6)
) 1- is connected with a switch switching mechanism (29) that causes the +i pivoting contact (27) of the switch (26) to be connected to the fixed contact (28), and the switch (26)
) is connected in series with the coil (3). (30)
is a protective cover that covers the switch (26) and its switching mechanism (29).

つぎに、上記構成の動作を説明する。Next, the operation of the above configuration will be explained.

まず、’r[Iif&コイル(3)からスイッチ(26
)にわたって通電され、電磁コイル(3)が励磁される
。これにより、ヨーク、(1)−プランジャ受(2)−
プランジャ(5)−導磁板(4)−ヨーク(1)に磁気
回路が形成され、プランジャ(5)がプランジャ受(2
)の下端部に吸引され、クッション材(8)により緩衝
作用を受ける。このとき、シャフト(6)が圧縮ばね(
14)に抗してプランジャ(5)と一体に」―Aして、
ダイヤフラム(7)が上方に変形駆動し、第2ポンプ室
(18)の容積が増大、圧力が低下する。これにより、
圧送すべき液体が吸入ボート(20)から第1ポンプ室
(17)へ、さらには吸入弁(22)を圧縮ばね(24
)に抗して押しLげて、第1ポンプ室(17)から第2
ポンプ室(18)に吸入される。
First, from 'r [Iif & coil (3) to switch (26
), and the electromagnetic coil (3) is excited. As a result, the yoke (1) - plunger holder (2) -
A magnetic circuit is formed between the plunger (5), the magnetically conductive plate (4) and the yoke (1), and the plunger (5) is connected to the plunger receiver (2).
) and receives a cushioning effect from the cushioning material (8). At this time, the shaft (6) is compressed by the compression spring (
14) and integrally with the plunger (5)”-A,
The diaphragm (7) is deformed upward, the volume of the second pump chamber (18) increases, and the pressure decreases. This results in
The liquid to be pumped is transferred from the suction boat (20) to the first pump chamber (17) and then to the suction valve (22) by the compression spring (24).
) and push it up from the first pump chamber (17) to the second pump chamber.
It is sucked into the pump chamber (18).

また、シャフト(6)の上昇行程では、シャフト(6)
の突き]−げ作用によりスイッチ切換機構(29)が反
転し、スイッチ(26)の可動接点(27)が固定接点
(28)から離間する。すなわち、スイッチ(26)が
OFFとな゛す、」1記ヨーク(1)−プランジャ受(
2)、プランジャ(5)−導磁板(4)−ヨーク(1)
の磁気回路が消滅する。その結果、圧縮ばね(14)の
復帰作用によりダイヤフラム(7)が押し下げられ、第
2ポンプ室(18)の容積が減少、圧力が増大する。す
なわち、第2ポンプ室(18)の液体が吐出弁(23)
を圧縮ばね(25)に抗して押し下げ、第3ポンプ室(
19)に吐出され、吐出ボート(21)から排出される
In addition, in the upward stroke of the shaft (6), the shaft (6)
The switch switching mechanism (29) is reversed by the pushing action, and the movable contact (27) of the switch (26) is separated from the fixed contact (28). In other words, when the switch (26) is turned OFF, the yoke (1) - the plunger receiver (1.
2), plunger (5) - magnetically conductive plate (4) - yoke (1)
magnetic circuit disappears. As a result, the diaphragm (7) is pushed down by the return action of the compression spring (14), the volume of the second pump chamber (18) decreases, and the pressure increases. That is, the liquid in the second pump chamber (18) is discharged from the discharge valve (23).
is pushed down against the compression spring (25) to open the third pump chamber (
19) and discharged from the discharge boat (21).

また、」二記シャフト(6)の下降行程では、シャフト
(6)の引きドげ作用により、スイッチ切換機構(29
)が瓦の状態に反転し、可動接点(27)が固定接点(
28)に当接する。すなわち、スイッチ(26)がON
となり、再び」二記のように、プランジャ(5)が往復
動する。
In addition, during the downward stroke of the shaft (6), the switch switching mechanism (29) is caused by the pulling action of the shaft (6).
) is reversed to the tile state, and the movable contact (27) becomes the fixed contact (
28). That is, the switch (26) is ON.
Then, the plunger (5) reciprocates as shown in 2.

一方、」1記構成において、・最も重要なことは、シャ
フト(6)が常に円滑に動作することである。しかるに
、従来のものは、フランジ(9)に板材の絞り加圧を施
して、その絞り部(31)Lこ下部側の軸受メタル(1
0)を設けている。しかし、この絞り加工中に塑性変形
領域外の加工部分があるため、経年変化により時効変形
が発生していた。峙に、この変形により軸受メタル(l
O)が変位すると、シャフト(6)の動作の円滑性がt
tlわれるため、軸受メタル(10)の摩耗を促進、ま
たはシャフト(6)の不動作を招く欠点があった。
On the other hand, in the configuration described in item 1, the most important thing is that the shaft (6) always operates smoothly. However, in the conventional method, the flange (9) is compressed by drawing the plate material, and the bearing metal (1) on the lower side of the drawing part (31) L is pressed.
0) is provided. However, during this drawing process, there were parts that were machined outside the plastic deformation area, so age deformation occurred due to aging. On the other hand, this deformation causes the bearing metal (l
O) is displaced, the smoothness of the movement of the shaft (6) becomes t
This has the drawback of accelerating wear of the bearing metal (10) or causing the shaft (6) to become inoperable.

この発明は上記欠点を解消するためになされたもので、
電磁コイルの励磁作用と、ばねによる復帰作用とにより
往復動するプランジャを備えた構成で、上記電磁コイル
の励磁により形成される磁気回路中の導磁板に、上記プ
ランジャの軸受メタルを保持し、かつ−1−記プランジ
ャの一端部側に」1記導磁板を配置することにより、構
成部品を減少し、かつ安定した動作特性を保証し、また
導磁率の高い電磁駆動式往復動ポンプを提供することを
目的としている。
This invention was made to eliminate the above drawbacks.
The plunger is configured to include a plunger that reciprocates due to the excitation action of an electromagnetic coil and the return action of a spring, and the bearing metal of the plunger is held on a magnetic conductive plate in a magnetic circuit formed by the excitation of the electromagnetic coil, By arranging the magnetically conductive plate (1) on one end of the plunger, the number of components is reduced, stable operating characteristics are guaranteed, and an electromagnetic reciprocating pump with high magnetic permeability is realized. is intended to provide.

以−ド、この発明の実施例を図面にもとづいて説明する
Embodiments of the present invention will now be described based on the drawings.

第2図はこの発明の一実施例にかかる電磁駆動式往復動
ポンプの一部切欠正面図である。この図において、第1
図で示したものと同じものには同一符号がつけられてい
る。
FIG. 2 is a partially cutaway front view of an electromagnetically driven reciprocating pump according to an embodiment of the present invention. In this figure, the first
Components that are the same as those shown in the figure are given the same reference numerals.

第2図において、(4)は導磁板で、その外周面はヨー
ク(1)の内周面に嵌着保持され、かつ中央上面にはプ
ランジャ(5)の下端部が嵌合して、その下端部が対向
する四部(4a)が形成されている。また、導磁板(4
)の中央部には、シャフト (6)の下部を支持する軸
受メタル(lO)が嵌合保持されている。さらに、ダイ
ヤフラl、(7)を下方へ付勢する圧縮ばね(14)の
−1一端は導磁板(4)の下面に支持されている。すな
わち、この場合の導磁板(4)は従来のフランジ(第1
図)(9)を兼用している。なお、第2図に示された導
磁板(4)はたとえば鍛造により形成されている。
In FIG. 2, (4) is a magnetically conductive plate whose outer circumferential surface is fitted and held on the inner circumferential surface of the yoke (1), and whose central upper surface is fitted with the lower end of the plunger (5). Four parts (4a) are formed whose lower ends face each other. In addition, a magnetic conductive plate (4
) is fitted and held in the center of the shaft (6) with a bearing metal (lO) that supports the lower part of the shaft (6). Further, one -1 end of the compression spring (14) that urges the diaphragm l (7) downward is supported by the lower surface of the magnetically conductive plate (4). That is, the magnetically conductive plate (4) in this case is a conventional flange (first
Figure) (9) is also used. Note that the magnetically conductive plate (4) shown in FIG. 2 is formed by forging, for example.

その他の構成は従来のものと同じであり、したがって、
その説明は省略する。
The rest of the configuration is the same as before, so
The explanation will be omitted.

第2図において、電磁コイル(3)が励磁されると、導
磁板(4)を通る磁気回路が形成され、プランジャ(5
)がプランジャ受(2)に吸引される。以下、従来と同
じ作用を呈するが、第2図の構成においては、導磁板(
4)は従来のフランジ(WS’1図)(9)を兼用した
ものであるから構成部品は減少し、かつ導磁板(4)の
内外周は鍛造により同時成形して、その外周をヨーク(
1)に嵌着するため、導磁板(4)の経年変化による時
効変形および他部品との誤差が非常に小さく、したがっ
て、導磁板(4)の内周に嵌合保持された軸受メタル(
10)の異常な摩耗やシャフト(6)の不動作を防止し
て、安定した動作特性が得られ、さらには導磁板(4)
のプランジャ(5)との対向面積を広くできるので、導
m率が向上して、プランジャ(5)の感応が迅速になり
、ポンプ性能が向−卜する。
In FIG. 2, when the electromagnetic coil (3) is excited, a magnetic circuit passing through the magnetically conductive plate (4) is formed, and the plunger (5) is energized.
) is attracted to the plunger receiver (2). Hereinafter, the same effect as the conventional one is exhibited, but in the configuration shown in Fig. 2, the magnetic conduction plate (
4) doubles as the conventional flange (Figure WS'1) (9), so the number of components is reduced, and the inner and outer peripheries of the magnetically conductive plate (4) are simultaneously formed by forging, and the outer periphery is used as a yoke. (
1), the aging deformation of the magnetic conductive plate (4) due to aging and the error with other parts are very small. (
10) and prevents the shaft (6) from malfunctioning, stable operating characteristics are obtained, and the magnetically conductive plate (4)
Since the area facing the plunger (5) can be increased, the conductivity is improved, the plunger (5) responds more quickly, and the pump performance is improved.

以上説明したように、この発明によれば、構成部品が減
少し、かつ安定した動作特性が得られ、また導磁率が向
上する電磁駆動式往復動ポンプが提供される。
As described above, the present invention provides an electromagnetically driven reciprocating pump with fewer components, stable operating characteristics, and improved magnetic permeability.

【図面の簡単な説明】 第1図は従来の電磁駆動式往復動ポンプの一部切欠側面
図、第2図はこの発明の一実施例を示す一部切欠側面図
である。 (3)−−−電磁コイル、(4)・・・導磁板、(5)
・会・プランジャ、(lO)・・φ軸受メタル、(14
)−・・ばね。 なお、図中同一符号は同一または相当部分を示す。 代理人 大岩増雄
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway side view of a conventional electromagnetically driven reciprocating pump, and FIG. 2 is a partially cutaway side view showing an embodiment of the present invention. (3) --- Electromagnetic coil, (4)...Magnetic conductive plate, (5)
・Meeting・Plunger, (lO)・φ bearing metal, (14
) - Spring. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa

Claims (1)

【特許請求の範囲】[Claims] (1)電磁コイルの励磁作用と、ばねによる復帰作用と
により往復動するプランジャを備えた構成で、−に記電
磁コイルの励磁により形成される磁気回路中の導磁板に
、上記プランジャの軸受メタルを保持し、かつ上記プラ
ンジャの一端部側に上記導磁板を配置したことを特徴と
する電磁駆動式往復動ポンプ。
(1) A configuration including a plunger that reciprocates by the excitation action of an electromagnetic coil and the return action of a spring, and the bearing of the plunger is mounted on a magnetic conductive plate in a magnetic circuit formed by the excitation of the electromagnetic coil. An electromagnetically driven reciprocating pump characterized by holding a metal member and disposing the magnetically conductive plate on one end side of the plunger.
JP58145903A 1983-08-08 1983-08-08 Electromagnetically driven reciprocating pump Pending JPS6036789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58145903A JPS6036789A (en) 1983-08-08 1983-08-08 Electromagnetically driven reciprocating pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58145903A JPS6036789A (en) 1983-08-08 1983-08-08 Electromagnetically driven reciprocating pump

Publications (1)

Publication Number Publication Date
JPS6036789A true JPS6036789A (en) 1985-02-25

Family

ID=15395719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58145903A Pending JPS6036789A (en) 1983-08-08 1983-08-08 Electromagnetically driven reciprocating pump

Country Status (1)

Country Link
JP (1) JPS6036789A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61258976A (en) * 1985-05-13 1986-11-17 Nitsukisou Eiko Kk Solenoid-driven reciprocating pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627088A (en) * 1979-08-07 1981-03-16 Toshiba Corp Solenoid-operated reciprocating pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627088A (en) * 1979-08-07 1981-03-16 Toshiba Corp Solenoid-operated reciprocating pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61258976A (en) * 1985-05-13 1986-11-17 Nitsukisou Eiko Kk Solenoid-driven reciprocating pump

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