JPH0442530Y2 - - Google Patents
Info
- Publication number
- JPH0442530Y2 JPH0442530Y2 JP1985024772U JP2477285U JPH0442530Y2 JP H0442530 Y2 JPH0442530 Y2 JP H0442530Y2 JP 1985024772 U JP1985024772 U JP 1985024772U JP 2477285 U JP2477285 U JP 2477285U JP H0442530 Y2 JPH0442530 Y2 JP H0442530Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- chambers
- plunger
- valves
- discharge
- 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.)
- Expired
Links
- 230000001105 regulatory effect Effects 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 description 22
- 239000012530 fluid Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
この考案は往復ポンプに関し、特に大径部及び
小径部の異なる径部を有し、それぞれのポンプ室
に吸入口及び吐出口を設け、低圧力大吐出量及び
高圧力小吐出量への利用を可能とする往復ポンプ
に関するものである。[Detailed description of the invention] [Industrial application field] This invention relates to a reciprocating pump, in particular a reciprocating pump that has different diameter parts, a large diameter part and a small diameter part, and has an inlet port and a discharge port in each pump chamber. The present invention relates to a reciprocating pump that can be used for large-pressure discharge volumes and high-pressure small discharge volumes.
［従来の技術］
従来の往復ポンプは、第２図に示すように、ク
ランクケース１にクランク軸２を介して軸支され
る連接棒３に一種類の吐出圧力及び吐出量を発生
しうるプランジヤ４がピン連結され、プランジヤ
４は、クランクケース１に固着されると共に吸入
弁５を備える吸入口６と吐出弁７を備える吐出口
８とがそれぞれ形成されるシリンダ９内に、シー
ル部であるＶパツキング１０を介して水気密状態
で往復動可能に摺設され、Ｖパツキング１０はシ
リンダ９の基端部にねじ連結されるバツクアツプ
リング１１によつてプランジヤ４の摺動方向に圧
縮されている。[Prior Art] As shown in FIG. 2, a conventional reciprocating pump includes a plunger capable of generating one type of discharge pressure and discharge amount on a connecting rod 3 that is rotatably supported in a crankcase 1 via a crankshaft 2. 4 are connected by pins, and the plunger 4 is fixed to the crankcase 1 and is a sealing part in a cylinder 9 in which an intake port 6 with an intake valve 5 and a discharge port 8 with a discharge valve 7 are respectively formed. The V packing 10 is slidably reciprocated in a water-tight manner via a V packing 10, and the V packing 10 is compressed in the sliding direction of the plunger 4 by a back spring 11 screwed to the base end of the cylinder 9. There is.
［考案が解決しようとする課題］
しかし、従来の往復ポンプは以上に述べたよう
に、プランジヤ４のポンプ室１２の圧力を直接Ｖ
パツキング１０で支える構成であるため、高圧力
の場合Ｖパツキング１０がこの圧力を支えきれ
ず、バツクアツプリング１１とプランジヤ４との
間にはみ出すことがあり、これを防止し、高圧力
に耐えるには、バツクアツプリング１１とプラン
ジヤ４との間隙を小さくする必要があり、バツク
アツプリング１１等の加工精度や周辺の組立精度
が要求され、コストアツプとなる等の問題があ
る。[Problem to be solved by the invention] However, as described above, the conventional reciprocating pump directly converts the pressure in the pump chamber 12 of the plunger 4 to V.
Since it is supported by the packing 10, in the case of high pressure, the V packing 10 may not be able to support this pressure and it may protrude between the back-up spring 11 and the plunger 4. To prevent this, and to withstand high pressure. In this case, it is necessary to reduce the gap between the back-up spring 11 and the plunger 4, and high processing precision and assembly precision of the back-up spring 11 and the surrounding parts are required, leading to problems such as increased costs.
［課題を解決するための手段］
この考案は以上に述べた事情に鑑み、大径部２
２と小径部２３との異なつた径部を有するプラン
ジヤ２１を往復動させ、このプランジヤ２１のそ
れぞれのポンプ室２９，３０を前記小径部２３の
シール部２８で隔離し、これら両ポンプ室２９，
３０を吸入弁３１，３２を介してそれぞれ吸入口
３３，３４に連通させる往復ポンプにおいて、前
記両ポンプ室２９，３０が吐出弁３５，３６を介
してそれぞれ調圧室３７，３８に連通し、これら
調圧室３７，３８にはそれぞれ開閉弁４６，４７
を備える吐出口４８，４９及び調圧弁４４，４５
をそれぞれ形成し、前記調圧室３７，３８を開閉
弁５０を介して連通させ、前記吸入口３３，３４
を互いに連通させると共に、これら吸入口３３，
３４を小径部２３のシール部２８の両側へそれぞ
れ連通させたことを特徴とする往復ポンプを提案
し、かつその実施に当つて前記両吸入口３３，３
４を互いに直接連通させると共に、前記大径部２
２のシール部２７へ直接連通させるものである。[Means for solving the problem] In view of the above-mentioned circumstances, this invention
The plunger 21 having different diameter parts 2 and small diameter part 23 is reciprocated, and the respective pump chambers 29 and 30 of this plunger 21 are separated by the seal part 28 of the small diameter part 23, and both pump chambers 29,
30 communicates with suction ports 33, 34 through suction valves 31, 32, respectively, the pump chambers 29, 30 communicate with pressure regulating chambers 37, 38 through discharge valves 35, 36, respectively, These pressure regulating chambers 37 and 38 have on-off valves 46 and 47, respectively.
Discharge ports 48, 49 and pressure regulating valves 44, 45 equipped with
The pressure regulating chambers 37 and 38 are communicated with each other via an on-off valve 50, and the suction ports 33 and 34 are connected to each other through an on-off valve 50.
are communicated with each other, and these inlets 33,
34 are communicated with both sides of the seal portion 28 of the small diameter portion 23.
4 are in direct communication with each other, and the large diameter portion 2
The seal portion 27 of No. 2 is directly connected to the seal portion 27 of No. 2.
［作用］
この考案の上記構造の往復ポンプでは、前記プ
ランジヤの両径部のポンプ室を隔離するシール部
の背面に前記大径部及び小径部のそれぞれのプラ
ンジヤのポンプ作用によつて発生した圧力を背圧
として作用させることにより、このシール部の耐
圧性の向上を図ることができると共に、高圧小流
量及び低圧大流量の二種類の吐出状態を作ること
ができる往復ポンプが得られるものである。[Function] In the reciprocating pump of this invention having the above structure, the pressure generated by the pumping action of each of the large diameter and small diameter plungers is applied to the back surface of the seal part that isolates the pump chambers of both diameter parts of the plunger. By acting as back pressure, it is possible to improve the pressure resistance of this seal part, and to obtain a reciprocating pump that can create two types of discharge conditions: high pressure, small flow rate, and low pressure, large flow rate. .
［実施例］
以下に添付図面に基づいてこの考案の一実施例
を説明する。[Embodiment] An embodiment of this invention will be described below based on the accompanying drawings.
第１図はこの考案の往復ポンプのそれぞれ異な
る実施例による断面図で、図において、２１は大
径部２２及びその先端部に一体的に小径部２３が
形成されるプランジヤで、プランジヤ２１はマニ
ホールド２４の大径部２５及びその先端部に形成
される小径部２６にそれぞれプランジヤ２１の大
径部２２及び小径部２３がシール部であるＶパツ
キング２７，２８を介して水気密状態で摺設され
る。そしてプランジヤ２１の大径部２２及び小径
部２３によるポンプ室２９及び３０は、前記小径
部２３のＶパツキング２８によつて互いに隔離さ
れる。 FIG. 1 is a sectional view of different embodiments of the reciprocating pump of this invention. In the figure, 21 is a plunger having a large diameter part 22 and a small diameter part 23 integrally formed at its tip, and the plunger 21 is a manifold. The large diameter part 22 and the small diameter part 23 of the plunger 21 are slid in a watertight state on the large diameter part 25 of the plunger 24 and the small diameter part 26 formed at the tip thereof, respectively, through V packings 27 and 28 which are seal parts. Ru. Pump chambers 29 and 30 formed by the large diameter portion 22 and small diameter portion 23 of the plunger 21 are separated from each other by the V-packing 28 of the small diameter portion 23.
前記プランジヤ２１の大径部２２及び小径部２
３によるポンプ室２９及び３０は、吸入弁３１及
び３２を介してマニホールド２４に形成される吸
入口３３及び３４にそれぞれ連通されると共に、
吐出弁３５及び３６を介して同様にマニホールド
２４に形成される一対の調圧室３７及び３８にそ
れぞれ連通される。前記両吸入口３３及び３４は
図示しない液源に連通可能とされる通路３９によ
り互いに連通されると共に、この通路３９は、前
記プランジヤ２１の大径部２２のＶパツキング２
７の後方に一定間隔を置いて配設されるＶパツキ
ング４０との間に形成される室４１に連通され
る。また両調圧室３７及び３８にはそれぞれ余水
口４２及び４３を有する調圧弁４４及び４５と開
閉弁４６及び４７を有する吐出口４８及び４９が
それぞれ配設されると共に、両調圧室３７及び３
８は開閉弁５０を介して互いに連通される。 Large diameter portion 22 and small diameter portion 2 of the plunger 21
The pump chambers 29 and 30 according to No. 3 are communicated with suction ports 33 and 34 formed in the manifold 24 via suction valves 31 and 32, respectively, and
It communicates with a pair of pressure regulating chambers 37 and 38 similarly formed in the manifold 24 via discharge valves 35 and 36, respectively. Both the suction ports 33 and 34 are communicated with each other by a passage 39 that can communicate with a liquid source (not shown), and this passage 39 is connected to the V packing 2 of the large diameter portion 22 of the plunger 21.
It communicates with a chamber 41 formed between the V-packing 40 and a V-packing 40 arranged at a constant interval behind the V-packing 7. In addition, the pressure regulating chambers 37 and 38 are provided with pressure regulating valves 44 and 45 having spillover ports 42 and 43, respectively, and discharge ports 48 and 49 having on-off valves 46 and 47, respectively. 3
8 are communicated with each other via an on-off valve 50.
以上に述べたように、この考案の往復ポンプに
よれば、まず高圧力小吐出量の状態で使用するに
は、第１図において、例えば調圧弁４４を500Kg
ｆ／cm2、調圧弁４５を所望の圧力1500Kgｆ／cm2に
それぞれ調圧し、開閉弁５０を閉とし、開閉弁４
７を開とすることにより吐出口４９より高圧力
（例えば1500Kgｆ／cm2）で小吐出量の流体を得る
ことができる。この際、高圧力（例えば1500Kg
ｆ／cm2）を受けているＶパツキング２８の背面に
は、低圧のポンプ作用をする部分２９の圧力（例
えば500Kgｆ／cm2）を背圧として作用されるため、
このとき実質的なＶパツキング２８の受圧力は
1000Kgｆ／cm2（1500Kgｆ／cm2−500Kgｆ／cm2）と
なり、背圧を作用させない場合よりもＶパツキン
グの負担は軽減されるため、耐圧性を向上するこ
とができる。 As mentioned above, according to the reciprocating pump of this invention, in order to use it in a state of high pressure and small discharge amount, for example, the pressure regulating valve 44 in FIG.
f/cm 2 and the pressure regulating valve 45 to the desired pressure of 1500 Kgf/cm 2 , close the on-off valve 50, and close the on-off valve 4.
By opening 7, a small discharge amount of fluid can be obtained from the discharge port 49 at a high pressure (for example, 1500 Kgf/cm 2 ). At this time, high pressure (e.g. 1500Kg)
The back pressure of the V-packing 28 which is receiving the pressure (for example, 500 Kgf/cm 2 ) is applied as a back pressure from the part 29 that performs a low-pressure pumping action.
At this time, the actual force received by the V packing 28 is
1000Kgf/cm 2 (1500Kgf/cm 2 -500Kgf/cm 2 ), and the burden of V-packing is reduced compared to when no back pressure is applied, so that pressure resistance can be improved.
一方、低圧力大吐出量の状態で使用する場合に
は、調圧弁４４又は４５のいずれか一方を所望の
低圧に調圧し、他方の調圧弁４５又は４４を前記
低圧よりもかなり高圧に調圧し、開閉弁５０を開
とし、開閉弁４６又は４７の一方を開として吐出
口４８又は４９の一方より低圧力大吐出量の流体
を吐出することができる。 On the other hand, when used in a state of low pressure and large discharge amount, either one of the pressure regulating valves 44 or 45 is regulated to a desired low pressure, and the other pressure regulating valve 45 or 44 is regulated to a pressure considerably higher than the low pressure. , the on-off valve 50 is opened, and one of the on-off valves 46 or 47 is opened to discharge fluid at a low pressure and a large discharge amount from one of the discharge ports 48 or 49.
また例えば調圧弁４５及び４４を所望の高圧力
及び低圧力に調整し、高圧力に調整された調圧弁
の側の開閉弁４７のみ開に設定しておくことによ
り、開閉弁５０の開閉切換によつて、容易に短時
間のうちに低圧力大吐出量と、高圧力小吐出量と
を切換えることができ、これら２つの状態を頻繁
に切換えて使用される洗浄装置に特に有効であ
る。 For example, by adjusting the pressure regulating valves 45 and 44 to desired high pressure and low pressure, and setting only the on-off valve 47 on the side of the pressure regulating valve adjusted to the high pressure to be open, the on-off switching of the on-off valve 50 can be performed. Therefore, it is possible to easily switch between a low-pressure large discharge amount and a high-pressure small discharge amount in a short period of time, and this is particularly effective for a cleaning device that is used by frequently switching between these two states.
［考案の効果］
この考案による往復ポンプは以上に述べたよう
であるから、以下のような効果を有するものであ
る。[Effects of the invention] As described above, the reciprocating pump according to this invention has the following effects.
(1) 高圧力小吐出量で使用した際に、その高圧力
を支えるＶパツキング（シール部）２８の背面
に、低圧側のポンプ室２９の圧力が背圧として
作用するので、その圧力負担が軽減されると共
に、動作流体によりこのＶパツキング２８が潤
滑されるため、Ｖパツキング２８の耐圧性をよ
り向上することができ、かつ水気密性も向上す
ることができる。(1) When used at high pressure and small discharge volume, the pressure of the pump chamber 29 on the low pressure side acts as back pressure on the back of the V packing (sealing part) 28 that supports the high pressure, so the pressure burden is reduced. Since the V packing 28 is lubricated by the working fluid, the pressure resistance of the V packing 28 can be further improved, and the water tightness can also be improved.
(2) また、Ｖパツキング２８の圧力負担が軽減さ
れるので、Ｖパツキング保持部の加工精度や周
辺の組立精度を低下させることが可能となり、
加工時間や組立時間の短縮化に寄与できる。(2) In addition, since the pressure burden on the V-packing 28 is reduced, it is possible to reduce the processing accuracy of the V-packing holding part and the assembly accuracy of the surrounding area.
It can contribute to shortening processing time and assembly time.
(3) 低圧力大吐出量の状態で使用する場合には、
調圧弁４４又は４５のいずれか一方を所望の低
圧に調圧し、他方の調圧弁４５又は４４を前記
低圧よりもかなり高圧に調圧し、開閉弁５０を
開とし、開閉弁４６又は４７の一方を開として
吐出口４８又は４９の一方より低圧力大吐出量
の流体を吐出することができる。(3) When using at low pressure and large discharge rate,
Either one of the pressure regulating valves 44 or 45 is regulated to a desired low pressure, the other pressure regulating valve 45 or 44 is regulated to a pressure considerably higher than the low pressure, the on-off valve 50 is opened, and one of the on-off valves 46 or 47 is opened. When the discharge port 48 or 49 is opened, fluid can be discharged at a low pressure and in a large discharge amount from one of the discharge ports 48 and 49.
(4) 調圧弁４５及び４４を所望の高圧力及び低圧
力に調整し、高圧力に調整された調圧弁の側の
開閉弁４７のみ開に設定しておくことにより、
開閉弁５０の開閉切換によつて、容易に短時間
のうちに低圧力大吐出量と、高圧力小吐出量と
を切換えることができ、これら２つの状態を頻
繁に切換えて使用される洗浄装置に特に有効で
ある。(4) By adjusting the pressure regulating valves 45 and 44 to the desired high pressure and low pressure, and setting only the on-off valve 47 on the side of the pressure regulating valve adjusted to the high pressure to open,
By switching the on-off valve 50 on and off, it is possible to easily switch between a low-pressure large discharge amount and a high-pressure small discharge amount in a short period of time, and the cleaning device is used by frequently switching between these two states. It is particularly effective for
(5) 前記においては二種の異なる径部２２，２３
を有する二段式のプランジヤ２１を使用した
が、より多数の異なる径部を有する多段式のプ
ランジヤを使用することにより、より高圧の流
体を吐出することができる。(5) In the above, two different diameter portions 22, 23 are used.
Although a two-stage plunger 21 having a diameter of 100 mm is used, a higher pressure fluid can be discharged by using a multi-stage plunger 21 having a larger number of different diameter parts.
(6) 高圧のポンプ室３０からＶパツキング２８の
間隙を通つて漏れた流体は、それより低圧のポ
ンプ室２９に吸収されるため、外部への流体の
漏れを防止することができる。低圧のポンプ室
２９とパツキング４０と室４１との関係も同様
である。(6) Fluid leaking from the high-pressure pump chamber 30 through the gap in the V-packing 28 is absorbed into the lower-pressure pump chamber 29, thereby preventing fluid from leaking to the outside. The same holds true for the relationship between the low-pressure pump chamber 29, packing 40, and chamber 41.
第１図はこの考案の往復ポンプのそれぞれ異な
る実施例による断面図で、第２図は従来の往復ポ
ンプを示す断面図である。
なお図において、２１……プランジヤ、２２…
…大径部、２３……小径部、２７，２８……Ｖパ
ツキング（シール部）、２９，３０……ポンプ室、
３１，３２……吸入弁、３３，３４……吸入口、
３５，３６……吐出弁、３７，３８……調圧室、
４４，４５……調圧弁、４６，４７，５０……開
閉弁、４８，４９……吐出口である。
FIG. 1 is a sectional view of different embodiments of the reciprocating pump of this invention, and FIG. 2 is a sectional view of a conventional reciprocating pump. In the figure, 21...plunger, 22...
...Large diameter part, 23...Small diameter part, 27, 28...V packing (sealing part), 29, 30...Pump chamber,
31, 32... Suction valve, 33, 34... Suction port,
35, 36...Discharge valve, 37,38...Pressure regulation chamber,
44, 45...Pressure regulating valve, 46, 47, 50...Opening/closing valve, 48, 49...Discharge port.
Claims (1)
有するプランジヤ２１を往復動させ、このプラ
ンジヤ２１のそれぞれのポンプ室２９，３０を
前記小径部２３のシール部２８で隔離し、これ
ら両ポンプ室２９，３０を吸入弁３１，３２を
介してそれぞれ吸入口３３，３４に連通させる
往復ポンプにおいて、前記両ポンプ室２９，３
０が吐出弁３５，３６を介してそれぞれ調圧室
３７，３８に連通し、これら調圧室３７，３８
にはそれぞれ開閉弁４６，４７を備える吐出口
４８，４９及び調圧弁４４，４５をそれぞれ形
成し、前記調圧室３７，３８を開閉弁５０を介
して連通させ、前記吸入口３３，３４を互いに
連通させると共に、これら吸入口３３，３４を
小径部２３のシール部２８の両側へそれぞれ連
通させたことを特徴とする往復ポンプ。 (2) 前記両吸入口３３，３４を互いに直接連通さ
せると共に、前記大径部２２のシール部２７へ
直接連通させたことを特徴とする実用新案登録
請求の範囲第１項記載の往復ポンプ。[Claims for Utility Model Registration] (1) A plunger 21 having different diameter parts, a large diameter part 22 and a small diameter part 23, is reciprocated, and the pump chambers 29 and 30 of each of the plunger 21 are connected to the small diameter part 23. In a reciprocating pump in which the pump chambers 29, 30 are separated by a seal portion 28 and communicated with suction ports 33, 34 via suction valves 31, 32, respectively, the pump chambers 29, 3
0 communicates with pressure regulation chambers 37 and 38 via discharge valves 35 and 36, respectively, and these pressure regulation chambers 37 and 38
are formed with discharge ports 48, 49 and pressure regulating valves 44, 45, respectively, each having on-off valves 46, 47, and the pressure regulating chambers 37, 38 are communicated via an on-off valve 50, and the suction ports 33, 34 A reciprocating pump characterized in that these suction ports 33 and 34 are communicated with each other and communicated with both sides of the seal portion 28 of the small diameter portion 23, respectively. (2) The reciprocating pump according to claim 1, wherein the suction ports 33 and 34 are in direct communication with each other and in direct communication with the seal portion 27 of the large diameter portion 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985024772U JPH0442530Y2 (en) | 1985-02-25 | 1985-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985024772U JPH0442530Y2 (en) | 1985-02-25 | 1985-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61142178U JPS61142178U (en) | 1986-09-02 |
| JPH0442530Y2 true JPH0442530Y2 (en) | 1992-10-07 |
Family
ID=30519238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985024772U Expired JPH0442530Y2 (en) | 1985-02-25 | 1985-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442530Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3706785A1 (en) * | 1987-03-03 | 1988-09-15 | Uraca Pumpen | PLUNGER PUMP |
| JPH05282422A (en) * | 1992-04-03 | 1993-10-29 | Asahi Chem Ind Co Ltd | Image processing device |
| JP6808440B2 (en) * | 2016-10-18 | 2021-01-06 | 豊興工業株式会社 | Electromagnetic pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131365U (en) * | 1974-08-26 | 1976-03-06 | ||
| JPS5718365A (en) * | 1980-07-08 | 1982-01-30 | Matsushita Electronics Corp | Semiconductor device and manufacture thereof |
| JPS599183B2 (en) * | 1982-02-16 | 1984-02-29 | 有限会社染谷製作所 | scissors |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599183U (en) * | 1982-07-08 | 1984-01-20 | 株式会社スギノマシン | 2 stage plunger pump |
-
1985
- 1985-02-25 JP JP1985024772U patent/JPH0442530Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131365U (en) * | 1974-08-26 | 1976-03-06 | ||
| JPS5718365A (en) * | 1980-07-08 | 1982-01-30 | Matsushita Electronics Corp | Semiconductor device and manufacture thereof |
| JPS599183B2 (en) * | 1982-02-16 | 1984-02-29 | 有限会社染谷製作所 | scissors |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61142178U (en) | 1986-09-02 |
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