JPS632519Y2 - - Google Patents

Info

Publication number
JPS632519Y2
JPS632519Y2 JP14195879U JP14195879U JPS632519Y2 JP S632519 Y2 JPS632519 Y2 JP S632519Y2 JP 14195879 U JP14195879 U JP 14195879U JP 14195879 U JP14195879 U JP 14195879U JP S632519 Y2 JPS632519 Y2 JP S632519Y2
Authority
JP
Japan
Prior art keywords
soil conditioner
soil
supply
earth
sand
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
Application number
JP14195879U
Other languages
Japanese (ja)
Other versions
JPS5659263U (en
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 filed Critical
Priority to JP14195879U priority Critical patent/JPS632519Y2/ja
Publication of JPS5659263U publication Critical patent/JPS5659263U/ja
Application granted granted Critical
Publication of JPS632519Y2 publication Critical patent/JPS632519Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Mixers Of The Rotary Stirring Type (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Control Of Conveyors (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Description

【考案の詳細な説明】 本考案は土砂と土質改良剤を混合する土質改良
装置の安全装置に関するものである。
[Detailed Description of the Invention] The present invention relates to a safety device for a soil improvement device that mixes earth and sand with a soil improvement agent.

管理設工事等において、掘削した土砂を埋戻し
に利用できるようにするために、土砂に一定割合
の土質改良剤を混合する土質改良装置が使用され
る。しかし従来の土質改良装置においては、土砂
ホツパーあるいは土質改良剤ホツパーが空になつ
て土砂あるいは土質改良剤の一方の供給が停止す
ると土質改良剤のみ、あるいは土質を改良されて
いない土砂が搬出されてしまう危険があつた。
2. Description of the Related Art In order to make excavated soil usable for backfilling during maintenance construction work, etc., a soil improvement device is used that mixes a certain percentage of a soil conditioner into the soil. However, in conventional soil improvement equipment, when the soil hopper or soil conditioner hopper becomes empty and the supply of either the soil or soil conditioner stops, only the soil conditioner or the unimproved soil is carried out. There was a danger of it being lost.

本考案は上記の事情にかんがみてなされたもの
であり、土砂ホツパーに土砂供給感知装置を設
け、土質改良剤ホツパーに土質改良剤供給感知装
置を設け、土砂定量供給機を駆動する油圧モータ
と土質改良剤定量供給機を駆動する油圧モータに
圧油を送るポンプのポンプ側管路と戻り側管路と
を電磁切換弁の切換によつてリリーフ弁の作動圧
を0にする電磁切換弁付リリーフ弁を介して連結
し、並列に連結された土砂供給感知装置の接点と
土質改良剤供給感知装置の接点を電磁切換弁付リ
リーフ弁のソレノイドと直列に連結し、土砂ある
いは土質改良剤の一方の供給が停止したときに他
方の供給を停止するようにすることにより、土質
改良剤のみ、あるいは土質を改良されていない土
砂が土質改良装置から搬出されることを防止しよ
うとするものである。
The present invention was developed in view of the above circumstances, and includes a soil supply sensing device installed in the soil hopper, a soil conditioner supply sensing device installed in the soil conditioner hopper, and a hydraulic motor that drives the sediment metering feeder and soil conditioner. A relief with an electromagnetic switching valve that reduces the operating pressure of the relief valve to 0 by switching between the pump side pipe line and the return side pipe line of the pump that sends pressure oil to the hydraulic motor that drives the improver quantitative feeder. The contact point of the soil supply sensing device and the contact point of the soil conditioner supply sensing device, which are connected through a valve and connected in parallel, are connected in series with the solenoid of the relief valve with an electromagnetic switching valve, and the contact point of the soil conditioner supply sensing device, which is connected in parallel, is connected in series with the solenoid of the relief valve with an electromagnetic switching valve. By stopping the other supply when one supply is stopped, it is intended to prevent only the soil conditioner or unimproved soil from being carried out from the soil conditioner.

以下、図面により本考案の実施例について説明
する。第1図に示すように掘削した土砂を投入す
る土砂ホツパー1は下端に油圧モータ8によつて
駆動される土砂定量供給機2を備え、消石灰等の
土質改良剤を投入する土質改良剤ホツパー3は下
端に油圧モータ9によつて駆動される土質改良剤
定量供給機4を備えており、両供給機2,4の供
給口2′,4′は混合機5に連結されている。両供
給機2,4の供給口2′,4′には、それぞれ土砂
あるいは土質改良剤の排出によるベーンの回転に
よつて供給状態を感知する土砂供給感知装置6及
び土質改良剤供給感知装置7が設けられている。
土砂供給感知装置6は土砂が混合機5に供給され
ているか否かを感知し、土質改良剤供給感知装置
7は土質改良剤が混合機5に供給されているか否
かを感知するものである。第2図は電気回路を示
し、土砂の供給が停止するとONになる土砂供給
感知装置6の感知スイツチ6′と第1のリレー1
0が直列に連結され、土質改良剤の供給が停止す
るとONになる土質改良剤供給感知装置7の感知
スイツチ7′と第2のリレー11が直列に連結さ
れている。第1のリレー10のA接点12と第2
のリレー11のA接点13は並列に連結され、後
述する電磁切換弁付リリーフ弁のソレノイド14
と直列に連結されている。第3図は油圧回路を示
し、ポンプ18から吐出された圧油は分岐してそ
れぞれ流量制御弁20,21を通り、土砂定量供
給機2の駆動油圧モータ8及び土質改良剤定量供
給機4の駆動油圧モータ9に送られ、合流してリ
ザーバ19に戻る。ポンプ側管路22と戻り側管
路23は電磁切換弁付リリーフ弁17を介して連
結されている。電磁切換弁付リリーフ弁17はリ
リーフ弁16と電磁切換弁15を組み合わせたも
ので、電磁切換弁15の切換によつてリリーフ弁
16の作動圧を0に変えるものである。
Embodiments of the present invention will be described below with reference to the drawings. As shown in Fig. 1, the earth and sand hopper 1 into which excavated earth and sand are fed is equipped with an earth and sand quantitative feeder 2 driven by a hydraulic motor 8 at its lower end, and the soil conditioner hopper 3 into which soil conditioner such as slaked lime is fed. is equipped with a soil conditioner metering feeder 4 driven by a hydraulic motor 9 at its lower end, and the feed ports 2', 4' of both feeders 2, 4 are connected to a mixer 5. At the supply ports 2' and 4' of both feeders 2 and 4, there are a soil supply sensing device 6 and a soil conditioner supply sensing device 7, respectively, which detect the supply state by the rotation of the vane due to the discharge of earth and sand or soil conditioner. is provided.
The earth and sand supply sensing device 6 senses whether earth and sand are being supplied to the mixer 5, and the soil conditioner supply sensing device 7 senses whether or not the soil conditioner is being supplied to the mixer 5. . Figure 2 shows the electric circuit, and shows the sensing switch 6' of the earth and sand supply sensing device 6 and the first relay 1, which are turned on when the earth and sand supply stops.
0 are connected in series, and the sensing switch 7' of the soil conditioner supply sensing device 7, which turns on when the supply of the soil conditioner is stopped, and the second relay 11 are connected in series. A contact 12 of the first relay 10 and the second
The A contact 13 of the relay 11 is connected in parallel to the solenoid 14 of a relief valve with an electromagnetic switching valve, which will be described later.
are connected in series. FIG. 3 shows a hydraulic circuit, in which the pressure oil discharged from the pump 18 is branched and passes through flow control valves 20 and 21, respectively, to drive the hydraulic motor 8 of the earth and sand quantitative feeder 2 and the soil conditioner quantitative feeder 4. It is sent to the drive hydraulic motor 9, joins and returns to the reservoir 19. The pump side conduit 22 and the return side conduit 23 are connected via a relief valve 17 with an electromagnetic switching valve. The relief valve 17 with an electromagnetic switching valve is a combination of the relief valve 16 and the electromagnetic switching valve 15, and changes the operating pressure of the relief valve 16 to zero by switching the electromagnetic switching valve 15.

上記の構成により、土砂の供給が停止すると、
土砂供給感知装置6の感知スイツチ6′がONに
なり、第1のリレー10のA接点12がONとな
つてソレノイド14に通電され、電磁切換弁15
がb位置に切換わり、リリーフ弁16の作動圧は
ほぼ0となつて、ポンプ18から吐出された圧油
はリリーフ弁16を通つてリザーバに戻るので、
土質改良剤定量供給機4の駆動油圧モータ9が停
止して土質改良剤の供給を停止する。
With the above configuration, when the supply of earth and sand is stopped,
The sensing switch 6' of the earth and sand supply sensing device 6 is turned on, the A contact 12 of the first relay 10 is turned on, the solenoid 14 is energized, and the electromagnetic switching valve 15 is turned on.
is switched to position b, the operating pressure of the relief valve 16 becomes almost 0, and the pressure oil discharged from the pump 18 returns to the reservoir through the relief valve 16.
The drive hydraulic motor 9 of the soil conditioner quantitative feeder 4 is stopped to stop supplying the soil conditioner.

土質改良剤の供給が停止するときも同様に、土
質改良剤供給感知装置7の感知スイツチ7′が
ONになり、第2のリレー11のA接点13が
ONとなり、電磁切換弁15がb位置に切換わ
り、ポンプ18から吐出された圧油はリリーフ弁
16を通つてリザーバ19に戻り、土砂定量供給
機2が停止して土砂の供給を停止する。
Similarly, when the supply of the soil conditioner is stopped, the sensing switch 7' of the soil conditioner supply sensing device 7 is activated.
is turned on, and the A contact 13 of the second relay 11 is turned on.
ON, the electromagnetic switching valve 15 switches to the b position, the pressure oil discharged from the pump 18 returns to the reservoir 19 through the relief valve 16, and the earth and sand metering feeder 2 stops to stop the earth and sand supply.

なお、本実施例においては両供給機2,4は同
時に停止する。
Note that in this embodiment, both supply machines 2 and 4 are stopped at the same time.

以上の様に、本考案によれば土砂あるいは土質
改良剤の一方の供給が停止したときに他方の供給
を停止する土質改良装置の安全装置が提供され、
土質改良剤のみ、あるいは土質を改良されていな
い土砂の土質改良装置からの搬出が防止されるの
である。
As described above, according to the present invention, there is provided a safety device for a soil improvement device that stops the supply of one of the earth and sand or the soil improvement agent when the other is stopped.
This prevents only soil conditioner or unimproved soil from being carried out of the soil conditioner.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案の実施例を示し、第1図は土質改
良装置の要部の側面図、第2図は電気回路図、第
3図は油圧回路図である。 1…土砂ホツパー、2…土砂定量供給機、3…
土質改良剤ホツパー、4…土質改良剤定量供給
機、5…混合機、6…土砂供給感知装置、7…土
質改良剤供給感知装置、8,9…油圧モータ、1
0,11…リレー、12,13…A接点、14…
ソレノイド、15…電磁切換弁、16…リリーフ
弁、17…電磁切換弁付リリーフ弁、18…ポン
プ、19…リザーバ。
The drawings show an embodiment of the present invention; FIG. 1 is a side view of the main parts of the soil improvement device, FIG. 2 is an electric circuit diagram, and FIG. 3 is a hydraulic circuit diagram. 1... Sediment hopper, 2... Sediment quantitative feeder, 3...
Soil conditioner hopper, 4... Soil conditioner quantitative feeder, 5... Mixer, 6... Earth and sand supply sensing device, 7... Soil conditioner supply sensing device, 8, 9... Hydraulic motor, 1
0,11...Relay, 12,13...A contact, 14...
Solenoid, 15...Solenoid switching valve, 16...Relief valve, 17...Relief valve with electromagnetic switching valve, 18...Pump, 19...Reservoir.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 土砂ホツパーから供給される土砂と土質改良剤
ホツパーから供給される土質改良剤とを混合機に
より混合する土質改良装置の安全装置であつて、
前記土砂ホツパーに土砂供給感知装置を設け、前
記土質改良剤ホツパーに土質改良剤供給感知装置
を設け、土砂定量供給機を駆動する油圧モータと
土質改良剤定量供給機を駆動する油圧モータに圧
油を送るポンプのポンプ側管路と戻り側管路とを
電磁切換弁の切換によつてリリーフ弁の作動圧を
0にする電磁切換弁付リリーフ弁を介して連結
し、並列に連結された土砂供給感知装置の接点と
土質改良剤供給感知装置の接点を前記電磁切換弁
付リリーフ弁のソレノイドと直列に連結し、土砂
あるいは土質改良剤の一方の供給が停止したとき
に他方の供給を停止するようにしたことを特徴と
する土質改良装置の安全装置。
A safety device for a soil improvement device that mixes earth and sand supplied from a soil hopper and a soil conditioner supplied from a soil conditioner hopper using a mixer,
The earth and sand hopper is provided with an earth and sand supply sensing device, the soil conditioner hopper is provided with a soil conditioner supply sensor, and a hydraulic motor that drives the earth and sand quantitative feeder and a hydraulic motor that drives the soil conditioner quantitative feeder are provided with pressurized oil. The pump-side pipe line and the return-side pipe line of the sending pump are connected via a relief valve with an electromagnetic switching valve that reduces the operating pressure of the relief valve to 0 by switching the electromagnetic switching valve. A contact point of the supply sensing device and a contact point of the soil conditioner supply sensing device are connected in series with the solenoid of the relief valve with electromagnetic switching valve, so that when the supply of one of the earth and sand or the soil conditioner is stopped, the supply of the other is stopped. A safety device for a soil improvement device characterized by:
JP14195879U 1979-10-14 1979-10-14 Expired JPS632519Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14195879U JPS632519Y2 (en) 1979-10-14 1979-10-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14195879U JPS632519Y2 (en) 1979-10-14 1979-10-14

Publications (2)

Publication Number Publication Date
JPS5659263U JPS5659263U (en) 1981-05-21
JPS632519Y2 true JPS632519Y2 (en) 1988-01-22

Family

ID=29373263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14195879U Expired JPS632519Y2 (en) 1979-10-14 1979-10-14

Country Status (1)

Country Link
JP (1) JPS632519Y2 (en)

Also Published As

Publication number Publication date
JPS5659263U (en) 1981-05-21

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