JPS6123107Y2 - - Google Patents
Info
- Publication number
- JPS6123107Y2 JPS6123107Y2 JP10367681U JP10367681U JPS6123107Y2 JP S6123107 Y2 JPS6123107 Y2 JP S6123107Y2 JP 10367681 U JP10367681 U JP 10367681U JP 10367681 U JP10367681 U JP 10367681U JP S6123107 Y2 JPS6123107 Y2 JP S6123107Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- feed
- hydraulic pipe
- valve
- pipe
- 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
- 239000011435 rock Substances 0.000 claims description 26
- 238000005553 drilling Methods 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 32
- 238000004140 cleaning Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Description
【考案の詳細な説明】
本考案は油圧さく岩機において送り速度を制御
する油圧回路に関するものである。[Detailed Description of the Invention] The present invention relates to a hydraulic circuit for controlling the feed rate in a hydraulic rock drill.
油圧さく岩機の送り装置は油圧モータを用いて
さく岩機本体を往復せしめている。さく岩機のさ
く岩作業中の送り速度は堀進速度に等しく、それ
以上の大速度を必要としないから、送り用油圧モ
ータへの油の供給は小流量でよいが、後退及びホ
ールクリーニング時の送り速度は作業を速やかに
行う必要があるため大速度を必要とした。しかし
大流量のポンプを採用したのでは不経済となる欠
点があつた。又、さく岩作業中の送り速度は岩質
にあつた安定堀進速度が必要とされ、従来のさく
岩機は手動によつてこの操作を行つて来たが、作
業者の熟練が必要とされ大変困難であつた。 The feeder of a hydraulic rock drill uses a hydraulic motor to move the rock drill body back and forth. The feed speed of the rock drill during rock drilling work is equal to the digging speed, and a higher speed is not required, so a small flow of oil is sufficient to supply the oil to the feed hydraulic motor, but during retreat and hole cleaning. The feed speed required a high speed because the work needed to be done quickly. However, using a pump with a large flow rate had the disadvantage of being uneconomical. In addition, the feed rate during rock drilling work requires a stable digging speed that matches the rock quality, and conventional rock drills have been operated manually, but this requires the operator's skill. It was very difficult.
本考案はこれらの欠点を排除することを目的と
し、１個の油圧ポンプを用いてフロープライオリ
テイ弁にて小流量と大流量に二分流せしめ、さく
岩作業中は制御された一定の小流量を優先的に送
り用油圧モータに供給し、その余剰の大流量を打
撃装置に供給し、岩質にあつた安定堀進速度でさ
く岩作業を行い又後退及びホールクリーニング時
には、打撃装置を必要としないため大流量を送り
用油圧モータに供給し、送り速度を増速し作業を
速やかに行うことを可能としたさく岩機の送り制
御装置を提供することを目的とするものである。 The purpose of this invention is to eliminate these drawbacks by using a single hydraulic pump and dividing the flow into a small flow rate and a large flow rate using a flow priority valve. is preferentially supplied to the feed hydraulic motor, and the surplus large flow is supplied to the striking device, allowing rock drilling work to be carried out at a stable excavation speed suitable for the rock quality.The striking device is also required when retreating and hole cleaning. It is an object of the present invention to provide a feed control device for a rock drill, which makes it possible to supply a large flow rate to a feed hydraulic motor, increase the feed speed, and quickly carry out work.
本考案の実施例を図面について説明すると、油
圧ポンプ１は原動機２に直結して駆動さ、油圧タ
ンク３から作動油を吸上げて圧油を生成する。 An embodiment of the present invention will be described with reference to the drawings. A hydraulic pump 1 is directly connected to a prime mover 2 and driven, and sucks up hydraulic oil from a hydraulic tank 3 to generate pressure oil.
フロープライオリテイ弁５は油圧ポンプ１の圧
油管路４を圧油管路６，９の二分流せしめ、絞り
弁５ａ前後のパイロツト管路は、絞り弁５ａ前後
の圧力差をひろい、油圧ポンプ１の吐出流量変動
による圧力上昇及び圧油管路６，９の圧力上昇に
より圧油管路６に絞り弁５ａの設定流量以上の流
量が流れようとすると絞り弁５ａ前後の圧力差が
大きくなりパイロツト管路の圧力差も大きくな
り、フロープライオリテイ弁５内の圧力補償スプ
ールを移動させ圧油管路６部の開度を小さくして
設定流量以上の流量が圧油管路６に流れるのを自
動的に制御し、圧油管路６に圧力変動に関係なく
一定の設定流量を優先的に送り、圧油管路９にそ
の余剰の大流量を送る。絞り弁５ａは、圧油管路
６の流量を岩質にあつた堀進速度に設定するもの
であり、岩質により流量を調整し、堀進速度を任
意に設定可能とするために可変式としている。油
圧ポンプ１は圧油管路４からフロープライオリテ
イ弁５、圧油回路６、操作弁７を経て送り用油圧
モータ８に圧油を供給すると共に、圧油管路９、
操作弁１０を経て送り用油圧モータ８に圧油を供
給し、且つ操作弁１１を経てさく岩機の打撃装置
１２に圧油を供給し、これを作動せしめる。 The flow priority valve 5 divides the pressure oil pipe 4 of the hydraulic pump 1 into two pressure oil pipes 6 and 9, and the pilot pipes before and after the throttle valve 5a widen the pressure difference before and after the throttle valve 5a. When a flow rate greater than the set flow rate of the throttle valve 5a is attempted to flow into the pressure oil line 6 due to a pressure increase due to fluctuations in the discharge flow rate and a pressure increase in the pressure oil lines 6 and 9, the pressure difference before and after the throttle valve 5a becomes large, and the pressure in the pilot line increases. As the pressure difference increases, the pressure compensating spool in the flow priority valve 5 is moved to reduce the opening of the pressure oil pipe 6 to automatically control the flow of flow into the pressure oil pipe 6 in excess of the set flow rate. , a constant set flow rate is sent preferentially to the pressure oil pipe line 6 regardless of pressure fluctuations, and the surplus large flow rate is sent to the pressure oil line 9. The throttle valve 5a is for setting the flow rate of the pressure oil pipe 6 to a digging speed suitable for the rock quality, and is a variable type so that the flow rate can be adjusted depending on the rock quality and the digging speed can be set arbitrarily. There is. The hydraulic pump 1 supplies pressure oil from a pressure oil pipe line 4 to a feed hydraulic motor 8 via a flow priority valve 5, a pressure oil circuit 6, and an operation valve 7, and also supplies pressure oil to a hydraulic oil feed motor 8 through a pressure oil pipe line 9,
Pressure oil is supplied to the feed hydraulic motor 8 through the operation valve 10, and is also supplied to the impact device 12 of the rock drill through the operation valve 11 to operate it.
操作弁７は６ポート２位置の手動方向切換弁
で、送り用油圧モータ８との間に管路１５，１６
が接続され、操作弁７が中立位置にあるときは圧
油管路６の圧油は油タンク３へ戻る。リリーフ弁
１３は圧油管路６に接続され、最高圧力を制限す
る。 The operation valve 7 is a manual directional switching valve with 6 ports and 2 positions, and there are pipes 15 and 16 between it and the feed hydraulic motor 8.
is connected and the operating valve 7 is in the neutral position, the pressure oil in the pressure oil pipe line 6 returns to the oil tank 3. The relief valve 13 is connected to the pressure oil line 6 and limits the maximum pressure.
操作弁１０，１１はタンデム回路の二連操作弁
で、操作弁１０を操作しているときは操作弁１１
は使用できないようになつている。操作弁１０は
６ポート３位置の手動方向切換弁で、送り用油圧
モータ８との間で管路１７，１８が管路１５，１
６に接続され、操作弁１１は６ポート２位置の手
動方向切換弁で、打撃装置１２との間に管路１
９，２０が接続されている。操作弁１０，１１が
中立位置にあるときは圧油管路９の圧油は油タン
ク３へ戻る。リリーフ弁１４は圧油管路９に接続
され、最高圧力を制限する。 The operation valves 10 and 11 are double operation valves in a tandem circuit, and when the operation valve 10 is operated, the operation valve 11 is operated.
is no longer available. The operation valve 10 is a manual directional switching valve with 6 ports and 3 positions, and the pipes 17 and 18 are connected to the feed hydraulic motor 8.
6, the operation valve 11 is a manual directional control valve with 6 ports and 2 positions, and a pipe line 1 is connected between it and the striking device 12.
9 and 20 are connected. When the operating valves 10 and 11 are in the neutral position, the pressure oil in the pressure oil pipe line 9 returns to the oil tank 3. The relief valve 14 is connected to the pressure oil line 9 and limits the maximum pressure.
送り用油圧モータ８は油圧両方向モータで、正
転したときさく岩機が前進し、逆転したとき後退
するように連結されているものとする。 The feed hydraulic motor 8 is a bidirectional hydraulic motor, and is connected so that when it rotates in the normal direction, the rock drill moves forward, and when it rotates in the reverse direction, it moves backward.
上述の油圧回路において、操作弁７を手動にて
前進側に切換えれば、油圧ポンプ１の圧油は管路
４，６，１５を経て送り用油圧モータ８の正転側
に制御された一定の小流量が優先的に送られ、さ
く岩機は岩質にあつた安定堀進速度で前進する。
さく岩作業中は操作弁１０を使用しないので、操
作弁１１を手動にして切換えれば、油圧ポンプ１
の圧油は管路４，９，１９を経て打撃装置１２に
余剰の大流量が送られ、これを作動せしめる。 In the above-mentioned hydraulic circuit, if the operating valve 7 is manually switched to the forward side, the pressure oil of the hydraulic pump 1 is supplied to the forward rotation side of the feed hydraulic motor 8 through the pipes 4, 6, and 15 at a controlled constant level. A small flow of water is sent preferentially, and the rock drill advances at a stable drilling speed that suits the rock quality.
Since the operating valve 10 is not used during rock drilling work, the hydraulic pump 1 can be switched manually by switching the operating valve 11.
A large surplus flow rate of the pressure oil is sent to the striking device 12 through the pipes 4, 9, and 19 to operate it.
後退及びホールクリーニング時には、操作弁１
０を手動にて前進又は後退側に切換えれば、油圧
ポンプ１の圧油は管路４，９，１７又は１８を経
て管路１５又は１６に接続され、送り用油圧モー
タの正転又は逆転側に余剰の大流量が送られ、さ
く岩機の前後進速度が増速される。 When reversing and hole cleaning, operate valve 1.
0 is manually switched to the forward or reverse side, the pressure oil of the hydraulic pump 1 is connected to the pipe 15 or 16 via the pipe 4, 9, 17 or 18, and the feed hydraulic motor is rotated forward or reverse. A large surplus flow is sent to the side, increasing the forward and backward movement speed of the rock drill.
戻りの油は夫々操作弁７，１０，１１を経て油
タンク３へ戻る。 The returning oil returns to the oil tank 3 via operating valves 7, 10, and 11, respectively.
以上に説明した如く本考案によればさく岩機の
送り装置においてさく岩作業中は岩質にあつた安
定堀進速度でさく岩作業を行え、後退及びホール
クリーニング時には必要のない打撃装置用の圧油
を利用して送り速度を速やかにして作業サイクル
を短縮することができ、且つさく岩作業の消費動
力が節減できる等の効果がある。 As explained above, according to the present invention, the rock drilling machine's feeding device can perform rock drilling at a stable digging speed suitable for the rock quality, and the impact device, which is not required during retreat and hole cleaning, can be used during rock drilling work. Using pressure oil, the feed rate can be increased quickly to shorten the work cycle, and the power consumption for rock drilling work can be reduced.
図は本考案の実施例を示す油圧回路図である。
１……油圧ポンプ、５……フロープライオリテ
イ弁、５ａ……絞り弁、７……遅送り用操作弁、
８……送り用油圧モータ、１０……早送り用操作
弁、１１……打撃用操作弁、１２……打撃装置、
１３，１４……リリーフ弁。
The figure is a hydraulic circuit diagram showing an embodiment of the present invention. 1... Hydraulic pump, 5... Flow priority valve, 5a... Throttle valve, 7... Slow feed operation valve,
8... Hydraulic motor for feeding, 10... Operation valve for rapid feed, 11... Operation valve for impact, 12... Impact device,
13, 14...Relief valve.
Claims (1)
した油圧回路において、油圧ポンプの吐出管路の
途中にフロープライオリテイ弁を挿入設置して油
圧管路を二分流し、一方の分流油圧管路は一方の
出口ポートへ制御された一定の小流量を優先的に
送る油圧管路とし、上記油圧管路は遅送り用手動
操作弁を介して送り用油圧モーに至るように構成
し、他方の分流油圧管路は他方の出口ポートへ前
記一方の分流油圧管路の余剰の大流量を送る油圧
管路とし、上記油圧管路は早送り用手動操作弁を
介して送り用油圧モータに至ると共に打撃用手動
操作弁を介して打撃装置に至るように構成してな
るさく岩機の送り制御装置。 In a hydraulic circuit designed to operate the feed and impact of a rock drill, a flow priority valve is inserted and installed in the middle of the discharge pipe of the hydraulic pump, so that the hydraulic pipe is divided into two, and one branch hydraulic pipe is connected. is a hydraulic pipe that preferentially sends a small controlled flow rate to one outlet port, and the hydraulic pipe is configured to reach a hydraulic mode for feeding via a manually operated valve for slow feeding, and the other The branch hydraulic pipe is a hydraulic pipe that sends a large surplus flow rate of the one branch hydraulic pipe to the other outlet port, and the hydraulic pipe is connected to the feed hydraulic motor via a manual operation valve for rapid feed, and also for impact. A rock drilling machine feed control device configured to be connected to a striking device via a manually operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10367681U JPS5810988U (en) | 1981-07-13 | 1981-07-13 | Rock drill feed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10367681U JPS5810988U (en) | 1981-07-13 | 1981-07-13 | Rock drill feed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5810988U JPS5810988U (en) | 1983-01-24 |
| JPS6123107Y2 true JPS6123107Y2 (en) | 1986-07-10 |
Family
ID=29898287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10367681U Granted JPS5810988U (en) | 1981-07-13 | 1981-07-13 | Rock drill feed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5810988U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7041454B2 (en) * | 2018-06-27 | 2022-03-24 | 古河ロックドリル株式会社 | Punch control device |
-
1981
- 1981-07-13 JP JP10367681U patent/JPS5810988U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5810988U (en) | 1983-01-24 |
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