JPS6126435Y2 - - Google Patents
Info
- Publication number
- JPS6126435Y2 JPS6126435Y2 JP12841980U JP12841980U JPS6126435Y2 JP S6126435 Y2 JPS6126435 Y2 JP S6126435Y2 JP 12841980 U JP12841980 U JP 12841980U JP 12841980 U JP12841980 U JP 12841980U JP S6126435 Y2 JPS6126435 Y2 JP S6126435Y2
- Authority
- JP
- Japan
- Prior art keywords
- pump
- pressure
- control
- horsepower
- reducing valve
- 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
- 238000010521 absorption reaction Methods 0.000 claims description 22
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
【考案の詳細な説明】
本考案はオーガでボーリングしながら杭等を圧
入させる杭の圧入機において、一般に使用されて
いる可変容量形のダブルポンプの吸収馬力配分が
各々のポンプで100〜50％の間で変化し、２個の
合計吸収馬力が100になるようにセツトされてい
るのを一時的に変更させてオーガの回転を上げる
ように制御する油圧制御装置に関するものであ
る。[Detailed description of the invention] This invention is a pile press-in machine that presses in piles, etc. while boring with an auger, and the absorption horsepower distribution of the commonly used variable displacement double pump is 100 to 50% for each pump. This relates to a hydraulic control device that controls the auger to increase its rotation by temporarily changing the total absorption horsepower of the two, which is set to 100.
クローラにより自走する油圧バツクホウをベー
スマシンとして使用した杭の圧入機が最近市販さ
れている。この圧入機に使用されている油圧ポン
プは、第１図に示す如く可変容量形ダブルポンプ
で、２個のポンプ１と２の間に於いて１個のポン
プの吸収馬力が50〜100％の間で変化するようセ
ツトされかつ２個のポンプの合計吸収馬力がエン
ジン３の出力を越えないようにセツトした全馬力
制御を行つている。又１個のポンプの吸収馬力を
50〜100％に変化させるのは他方のポンプの吐出
圧をパイロツト圧としこれの増加にともない吸収
馬力を減少させ、最低50％迄落すように制御され
ている。 Recently, a pile press-in machine that uses a hydraulic backhoe as a base machine that is self-propelled by a crawler has been commercially available. The hydraulic pump used in this press-in machine is a variable displacement double pump as shown in Figure 1, and between the two pumps 1 and 2, the absorption horsepower of one pump is 50 to 100%. The total horsepower control is performed so that the total horsepower absorbed by the two pumps does not exceed the output of the engine 3. Also, the absorption horsepower of one pump is
The reason for changing the pressure from 50 to 100% is to use the discharge pressure of the other pump as a pilot pressure, and as this increases, the absorbed horsepower is reduced, and is controlled to drop to a minimum of 50%.
上記ポンプ１からの圧油は、杭の圧入側の、又
ポンプ２からの圧油はオーガ側の各マルチ弁４，
５を介して油圧モータにそれぞれ供給されるよう
にしてある。６，７はポンプ１，２の流量を制御
させるレギユレータである。 The pressure oil from the pump 1 is applied to the pile press-in side, and the pressure oil from the pump 2 is applied to the multi-valve 4 on the auger side.
5 to the hydraulic motors. 6 and 7 are regulators that control the flow rates of the pumps 1 and 2.
上記油圧制御回路とした従来の杭の圧入機の場
合、杭の圧入を容易且つ比較的騒音なしで行うた
めに、オーガによりボーリングしながら杭を圧入
させる作業を行つている。このような作業を行う
ときは従来の圧入機でも問題はないが、作業中に
オーガの回転をあげて排土をよくしたいときは、
上記の制御方式によらないで、オーガ側に使用の
ポンプ２に大きな馬力を使用したいことがある。 In the case of a conventional pile press-in machine using the above-mentioned hydraulic control circuit, in order to press-in the pile easily and relatively noiselessly, the pile is press-fitted while boring with an auger. There is no problem with a conventional press-in machine when performing such work, but if you want to increase the rotation of the auger during work to improve soil removal,
There are cases where it is desired to use a large horsepower for the pump 2 used on the auger side, without relying on the above control method.
本考案は、上記従来の如くセツトされた制御回
路において、ポンプの吸収馬力セツトを簡単に変
更できるようにしようとするもので、ポンプから
の制御圧を所定の圧力に整圧する減圧弁と上記制
御圧が減圧弁を通る回路と減圧弁を通らない回路
に切り換える切換弁とを、１個のポンプの吸収馬
力が50〜100％の間で変化し、片方のポンプの吐
出圧の増加にともないこれをパイロツト圧として
他方のポンプの吸収馬力を減少させ２個の合計吸
収馬力が100％となるようにセツトされた可変容
量形ダブルポンプの制御回路に組み込んでなるこ
とを特徴とするものである。 The present invention aims to make it possible to easily change the absorption horsepower setting of the pump in the conventionally set control circuit described above. The absorption horsepower of one pump changes between 50 and 100%, and as the discharge pressure of one pump increases, the switching valve switches between a circuit where the pressure passes through the pressure reducing valve and a circuit where the pressure does not pass through the pressure reducing valve. This invention is characterized in that it is incorporated into the control circuit of a variable displacement double pump, which is set to reduce the absorption horsepower of the other pump by using it as a pilot pressure so that the total absorption horsepower of the two pumps becomes 100%.
以下、図面にもとづき本考案の実施例を説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第２図は本考案の油圧制御装置を示すもので、
第１図の如くセツトされた制御回路に組み込んだ
ものである。すなわち、杭圧入用の油圧モータに
圧油を供給する側のポンプ１の吐出側と、オーガ
の回転用の油圧モータへ圧油を供給する側のポン
プ２のレギユレータ７とを接続するパイロツト回
路の途中に、減圧弁８とチエツク弁９とを配設す
ると共に、切換弁１０を設け、通常の作業時はポ
ンプ１からの制御圧力が減圧弁８を通らないで切
換弁１０を経て上記レギユレータ７に入るように
配管１１を設け、且つ切換弁１０を切り換えたと
き、減圧弁８を通つた制御圧が切換弁１０を経て
ポンプ１のレギユレータ６と６′のうち６′に入り
該ポンプ１の流量を一定に制御させるよう配管１
２を設け、減圧弁８、チエツク弁９、切換弁１０
によつて油圧制御装置を構成させる。 Figure 2 shows the hydraulic control device of the present invention.
This is incorporated into a control circuit set up as shown in FIG. That is, the pilot circuit connects the discharge side of the pump 1 that supplies pressure oil to the hydraulic motor for pile press-in, and the regulator 7 of the pump 2 that supplies pressure oil to the hydraulic motor for rotating the auger. A pressure reducing valve 8 and a check valve 9 are provided along the way, as well as a switching valve 10. During normal operation, the control pressure from the pump 1 does not pass through the pressure reducing valve 8, but instead passes through the switching valve 10 and is transferred to the regulator 7. When the pipe 11 is provided so that the switching valve 10 is switched, the control pressure that has passed through the pressure reducing valve 8 enters 6' of the regulators 6 and 6' of the pump 1 via the switching valve 10. Piping 1 to control the flow rate constant
2, a pressure reducing valve 8, a check valve 9, a switching valve 10
The hydraulic control device is configured by:
本考案の装置を制御回路に組んだ杭の圧入機
は、走行移動時、通常の運転時には切換弁１０を
第２図に示す姿のままにして使用する。 A pile press-in machine incorporating the device of the present invention in a control circuit is used with the switching valve 10 in the state shown in FIG. 2 during traveling and normal operation.
切換弁１０が第２図のような状態にあるとき
は、ポンプ１からの制御圧力は減圧弁８の手前か
ら抵抗の少ない配管１１を通り切換弁１０を通つ
てポンプ２のレギユレータ７に入る。レギユレー
タ７は、このポンプ１からの制御圧力によつてポ
ンプ２の吸収馬力を調整するような働きをし、こ
のポンプ２からの制御圧力はポンプ１のレギユレ
ータ６に入り、１及び２のポンプの合計吸収馬力
がエンジン３の馬力を越えない様相互に制御しあ
つている。 When the switching valve 10 is in the state shown in FIG. 2, the control pressure from the pump 1 passes from before the pressure reducing valve 8 through the piping 11 with low resistance, passes through the switching valve 10, and enters the regulator 7 of the pump 2. The regulator 7 functions to adjust the absorption horsepower of the pump 2 according to the control pressure from the pump 1, and the control pressure from the pump 2 enters the regulator 6 of the pump 1, and the control pressure from the pump 2 is input to the regulator 6 of the pump 1. They mutually control each other so that the total absorbed horsepower does not exceed the horsepower of engine 3.
今、オーガ作業に重きを置いて排土をよくしよ
うとするときは、操縦者が切換弁１０を図示の状
態から切り換える。これにより配管１１は切換弁
１０により閉鎖されるので、ポンプ１からの制御
圧力は、減圧弁８、チエツク弁９を経てポンプ２
のレギユレータ７に入ることになる。このとき、
制御圧は、所定の圧力にセツトされている減圧弁
８により一定値に整圧され、ポンプ１の吐出圧力
が上昇しても他のポンプ２に与える制御圧として
は定圧となりレギユレータ７に作用することにな
る。従つて、減圧弁８を所定の設定圧にセツトし
ておけば、このセツト圧に整圧された制御圧によ
り、ポンプ２のレギユレータ７が制御され、第３
図Ａに示す如くポンプ２は吸収馬力が50％イ〜
100％ロの範囲内で変更されたものが、例えば、
エンジン３の総出力の70％というように変更さ
れ、このときのポンプ２の吸収馬力は、第３図Ｂ
に示すハの如く減圧弁８により制御された吸収馬
力に制御され、ポンプ１の吐出圧が上昇しても減
圧弁８で定めた圧力に見合う吸収馬力以下には低
下しないこととなる。これによりオーガの回転の
ための馬力が増大させられて回転があげられ土砂
の排出が迅速に行われることになる。この点、第
１図の従来の場合では、片方のポンプ１の吐出圧
が上昇すると他方のポンプ２の吐出量が減少させ
られていたのと異なる。 Now, when trying to improve soil removal by placing emphasis on auger work, the operator switches the switching valve 10 from the illustrated state. As a result, the pipe 11 is closed by the switching valve 10, so that the control pressure from the pump 1 passes through the pressure reducing valve 8 and the check valve 9 to the pump 2.
It will enter regulator 7. At this time,
The control pressure is regulated to a constant value by the pressure reducing valve 8 which is set to a predetermined pressure, and even if the discharge pressure of the pump 1 increases, the control pressure applied to the other pumps 2 remains constant and acts on the regulator 7. It turns out. Therefore, if the pressure reducing valve 8 is set to a predetermined set pressure, the regulator 7 of the pump 2 is controlled by the control pressure regulated to this set pressure, and the third
As shown in Figure A, pump 2 has an absorption horsepower of 50%.
For example, what has been changed within the range of 100%
The output is changed to 70% of the total output of engine 3, and the absorption horsepower of pump 2 at this time is shown in Figure 3B.
As shown in C, the absorption horsepower is controlled by the pressure reducing valve 8, and even if the discharge pressure of the pump 1 increases, it will not fall below the absorption horsepower corresponding to the pressure determined by the pressure reducing valve 8. As a result, the horsepower for rotating the auger is increased, the rotation is increased, and earth and sand can be discharged quickly. This point differs from the conventional case shown in FIG. 1, in which when the discharge pressure of one pump 1 increases, the discharge amount of the other pump 2 decreases.
一方、上記ポンプ２側の吸収馬力が普段の馬力
より高められたとき、ポンプ１の吸収馬力は、前
記の減圧弁８を通り整圧された制御圧力が切換弁
１０を通りレギユレータ６′の流量制御部に入れ
られてポンプ１の吐出量調整を行い、第４図Ａか
らＢに示すように定吐出流量、すなわち、流量一
定に制御する。これによりエンジン３の総出力か
らオーガ側に用いられる馬力を除した残りの馬力
がポンプ１側に配分されることになり、エンジン
３のストールを防止できる。 On the other hand, when the absorption horsepower on the side of the pump 2 is increased from the normal horsepower, the absorption horsepower of the pump 1 is determined by the control pressure regulated through the pressure reducing valve 8 passing through the switching valve 10 and the flow rate of the regulator 6'. The control unit adjusts the discharge amount of the pump 1, and controls the discharge flow rate to be constant, that is, the flow rate is constant, as shown in FIGS. 4A to 4B. As a result, the remaining horsepower obtained by subtracting the horsepower used for the auger from the total output of the engine 3 is distributed to the pump 1 side, and stalling of the engine 3 can be prevented.
上記によりオーガの回転があげられてオーガ重
視の作業を行つた後、通常の作業状態に戻すとき
は、切換弁１０を図面に示す状態に戻す。これに
よりダブルポンプ１，２の制御は従来の第１図と
同様に行われることになる。作業場所の変更によ
り走行移動する場合、本考案では両ポンプ１，２
からの圧油の供給によりクローラの駆動が行える
ようになつているが、両ポンプ１，２の吸収馬力
配分が50％，50％であるため、同一流量を吐出さ
せ直進することができる。 After the rotation of the auger is increased and the auger is focused on the work as described above, when returning to the normal work state, the switching valve 10 is returned to the state shown in the drawings. As a result, the double pumps 1 and 2 are controlled in the same manner as in the conventional system shown in FIG. When traveling due to a change in work location, this invention uses both pumps 1 and 2.
The crawler can be driven by supplying pressure oil from the pump, but since the absorption horsepower distribution of both pumps 1 and 2 is 50% and 50%, it is possible to discharge the same flow rate and move straight.
以上述べたように、本考案の油圧制御装置によ
れば、可変容量形のダブルポンプの個々の吸収馬
力配分を50〜100％の間で変化し、合計の吸収馬
力が100％となるようにセツトし、片方のポンプ
の吐出圧が上昇すると他方のポンプの吐出量を減
少させるようにしてある制御回路に、減圧弁及び
切換弁を組み込み、ポンプの馬力セツトを必要時
変更できるようにしたので、オーガ作業に重きを
置くときに容量にポンプの吸収馬力セツトを変更
できてオーガ作業用として馬力を増大して迅速な
作業ができ、しかも従来の制御回路に減圧弁等の
組み込みという簡単な構成であり、廉価に製作、
組み込みができる、等の優れた効果を奏し得る。 As described above, according to the hydraulic control device of the present invention, the individual absorption horsepower distribution of the variable displacement double pump is varied between 50 and 100%, and the total absorption horsepower is 100%. A pressure reducing valve and a switching valve are incorporated into the control circuit so that when the discharge pressure of one pump increases, the discharge amount of the other pump decreases, so that the horsepower setting of the pump can be changed when necessary. When placing emphasis on auger work, the pump's absorption horsepower set can be changed depending on the capacity, increasing the horsepower for auger work and allowing for faster work. Moreover, it has a simple configuration that incorporates a pressure reducing valve etc. into the conventional control circuit. , produced at low cost,
It can produce excellent effects such as being able to be incorporated.
第１図は従来の杭の圧入機に使用されている可
変容量形ダブルポンプの制御回路、第２図は本考
案の油圧制御装置を示す回路図、第３図Ａはオー
ガ駆動側ポンプの圧力と流量の関係図で第３図Ｂ
は本考案の装置により流量が制御された状態を示
す関係図、第４図Ａは圧入駆動側ポンプの圧力と
流量の関係図で第４図Ｂは本考案において流量が
制御された状態を示す関係図である。
１，２……ポンプ、３……エンジン、６，
６′，７……レギユレータ、８……減圧弁、１０
……切換弁。
Figure 1 is a control circuit for a variable displacement double pump used in a conventional pile press-in machine, Figure 2 is a circuit diagram showing the hydraulic control device of the present invention, and Figure 3A is the pressure of the auger drive side pump. Figure 3B shows the relationship between
4A is a relational diagram showing the state in which the flow rate is controlled by the device of the present invention, FIG. 4A is a relational diagram between the pressure and flow rate of the press-in drive side pump, and FIG. 4B shows the state in which the flow rate is controlled in the present invention. It is a relationship diagram. 1, 2...pump, 3...engine, 6,
6', 7...regulator, 8...pressure reducing valve, 10
...Switching valve.
Claims (1)
圧弁と上記制御圧が減圧弁を通る回路と減圧弁を
通らない回路とに切り換える切換弁とを、１個の
ポンプの吸収馬力が50〜100％の間で変化し、片
方のポンプの吐出圧の増加にともないこれをパイ
ロツト圧として他方のポンプの吸収馬力を減少さ
せ２個の合計吸収馬力が100％となるようにセツ
トされた可変容量形ダブルポンプの制御回路に組
み込んでなることを特徴とする杭圧入機の油圧制
御装置。 A pressure reducing valve that regulates the control pressure from the pump to a predetermined pressure and a switching valve that switches the control pressure between a circuit in which the control pressure passes through the pressure reducing valve and a circuit in which it does not pass through the pressure reducing valve are installed in a pump with an absorption horsepower of 50 to 100. %, and as the discharge pressure of one pump increases, this is used as pilot pressure to reduce the absorption horsepower of the other pump, and the total absorption horsepower of the two pumps is set to 100%. A hydraulic control device for a pile press-in machine, characterized in that it is incorporated into a control circuit of a double pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12841980U JPS6126435Y2 (en) | 1980-09-09 | 1980-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12841980U JPS6126435Y2 (en) | 1980-09-09 | 1980-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5751740U JPS5751740U (en) | 1982-03-25 |
| JPS6126435Y2 true JPS6126435Y2 (en) | 1986-08-08 |
Family
ID=29488802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12841980U Expired JPS6126435Y2 (en) | 1980-09-09 | 1980-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6126435Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017020253A (en) * | 2015-07-10 | 2017-01-26 | 株式会社コーワン | Pile press-in/pull-out machine |
| DE102018104331A1 (en) * | 2018-02-26 | 2019-08-29 | Liebherr-Werk Nenzing Gmbh | Method for power management in pile foundation with a carrier machine and an attachment mounted thereon |
-
1980
- 1980-09-09 JP JP12841980U patent/JPS6126435Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5751740U (en) | 1982-03-25 |
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