JP4864778B2 - Tunnel work vehicle - Google Patents

Tunnel work vehicle Download PDF

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JP4864778B2
JP4864778B2 JP2007072183A JP2007072183A JP4864778B2 JP 4864778 B2 JP4864778 B2 JP 4864778B2 JP 2007072183 A JP2007072183 A JP 2007072183A JP 2007072183 A JP2007072183 A JP 2007072183A JP 4864778 B2 JP4864778 B2 JP 4864778B2
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electric motor
battery
hydraulic pump
hydraulic
motor
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JP2008231762A (en
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征一 宮越
泰範 能代
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Furukawa Rock Drill Co Ltd
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Furukawa Rock Drill Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/20—Energy regeneration from auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/04—Distributing means for power supply in mines
    • E21F17/06—Distributing electric power; Cable networks; Conduits for cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/40—Working vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/12—Emission reduction of exhaust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
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  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
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Description

本発明は、トンネル内での作業に用いられるトンネル用作業車両に関する。   The present invention relates to a tunnel work vehicle used for work in a tunnel.

この種のトンネル用作業車両では、坑内の空気を汚染しないように、動力源として電動モータで作業するものが採用されている。その多くは、バッテリのみによる駆動や、ケーブルリールを介して外部から供給された電源によって駆動する外部電源駆動である。これにより、主要作業時には、電動モータのみを動力源として、坑内の空気の汚染を防止している。   In this type of tunnel work vehicle, one that uses an electric motor as a power source is employed so as not to pollute the air in the mine. Many of them are driven by a battery alone or external power supply driven by a power source supplied from the outside via a cable reel. This prevents contamination of the air in the mine using only the electric motor as a power source during main work.

しかし、例えば換気が十分になされる条件下での作業や、比較的に作業時間が短い補助的な作業（例えば自車両の走行時など）には、車載されたディーゼルエンジン等のエンジン（内燃機関）を動力源として使用することは合理的な場合がある。
そこで、例えば特許文献１に記載の技術では、エンジン（内燃機関）および電動モータのそれぞれによって負荷を駆動可能な、いわゆるハイブリッド方式を備える建設機械用モータが提案されている。なお、同文献に記載の建設機械用モータは、回生エネルギー制御等に係る構成は特に有しない。
特表平８−５０３２７６号公報 However, for example, an engine such as a diesel engine (internal combustion engine) mounted on a vehicle is used for work under sufficiently ventilated conditions or auxiliary work with a relatively short work time (for example, when the host vehicle is running). ) As a power source may be reasonable.
Therefore, for example, in the technique described in Patent Document 1, a construction machine motor having a so-called hybrid system that can drive a load by each of an engine (internal combustion engine) and an electric motor has been proposed. Note that the construction machine motor described in the document does not have a configuration related to regenerative energy control or the like.
JP-T 8-503276

しかしながら、特許文献１に記載の技術では、建設機械用モータを電動モータで動作させる場合に、例えばバッテリのみで駆動するときには、バッテリが放電しきれば停止してしまうし、また、例えば外部電源駆動のときには、ケーブルがとどく限られた範囲内のみでの作業となり、外部からの電源の取得が困難な状況での使用においては使用範囲に制限がある。なお、必要な電源を確保するために、発電機を別途に用意したり、あるいは、外部電源を供給可能な範囲を拡大したりすることも考えられるものの、このような方法では、その分の費用が嵩むことになる。   However, in the technique described in Patent Document 1, when a construction machine motor is operated by an electric motor, for example, when it is driven only by a battery, it stops if the battery is completely discharged, and, for example, is driven by an external power source. In this case, the work is performed only within a limited range of the cable, and the use range is limited in use in a situation where it is difficult to obtain a power supply from the outside. In order to secure the necessary power supply, it may be possible to prepare a separate generator or expand the range where external power can be supplied. Will increase.

また、建設機械用モータをディーゼルエンジンで動作させる場合には、上述のように、例えば換気が十分になされる条件下での作業や、比較的に作業時間が短い補助的な作業（例えば自車両の走行時など）等、内燃機関を使用しても差し支えのない環境に使用範囲が制限されてしまう。
そこで、本発明は、このような問題点に着目してなされたものであって、坑内の空気の汚染を防止または抑制するとともに、使用範囲を拡大し得るトンネル用作業車両を提供することを目的としている。 Further, when the construction machine motor is operated by a diesel engine, as described above, for example, work under sufficiently ventilated conditions, or auxiliary work with relatively short work time (for example, own vehicle) The range of use is limited to an environment where there is no problem even if the internal combustion engine is used.
Therefore, the present invention has been made paying attention to such problems, and an object of the present invention is to provide a tunnel working vehicle that can prevent or suppress contamination of air in the mine and can expand the use range. It is said.

上記課題を解決するために、本発明は、トンネル内での作業に用いられ、油圧ポンプと、その油圧ポンプからの圧油で駆動する走行用の油圧モータとを備える作業車両であって、前記油圧ポンプを駆動可能な電動モータおよび発電機を兼ねる電動機と、その電動機との間で電気エネルギーを受け渡しするバッテリと、前記電動機に、クラッチを介して動力伝達を断続可能に接続されたエンジンとを備えていることを特徴としている。なお、バッテリには大容量のものを採用することは好ましい。また、エンジン（内燃機関）には、ディーゼルエンジンを好適に採用することができる。   In order to solve the above problems, the present invention is a work vehicle that is used for work in a tunnel and includes a hydraulic pump and a traveling hydraulic motor that is driven by pressure oil from the hydraulic pump. An electric motor that also serves as an electric motor and generator that can drive a hydraulic pump, a battery that transfers electric energy to and from the electric motor, and an engine that is connected to the electric motor via a clutch so that power transmission can be intermittently connected It is characterized by having. In addition, it is preferable to employ a battery having a large capacity. Moreover, a diesel engine can be suitably employed as the engine (internal combustion engine).

本発明に係るトンネル用作業車両によれば、油圧ポンプと、その油圧ポンプからの圧油で駆動する走行用の油圧モータと、前記油圧ポンプを駆動可能な電動モータおよび発電機を兼ねる電動機と、その電動機との間で電気エネルギーを受け渡しするバッテリとを備えているので、バッテリから供給された電力で電動機を電動モータとして動作させて油圧ポンプを駆動して走行することができる（第一の走行状態という）。したがって、第一の走行状態では、バッテリから供給された電力で電動機を電動モータとして駆動して走行するので、坑内の空気の汚染を防止または抑制しつつ必要な作業を行うことができる。   According to the tunnel work vehicle according to the present invention, a hydraulic pump, a traveling hydraulic motor driven by pressure oil from the hydraulic pump, an electric motor that serves as both an electric motor and a generator capable of driving the hydraulic pump, And a battery that transfers electric energy to and from the electric motor, so that the electric motor can be operated as an electric motor with the electric power supplied from the battery to drive the hydraulic pump (first driving). Called state). Therefore, in the first traveling state, the electric motor is driven as the electric motor with the electric power supplied from the battery, so that necessary work can be performed while preventing or suppressing the contamination of the air in the mine.

また、本発明に係るトンネル用作業車両によれば、電動モータおよび発電機を兼ねる電動機は、エンジンに、クラッチを介して動力伝達を断続可能に接続されているので、エンジンを運転し且つクラッチを接続することで電動機を介して油圧ポンプを駆動して走行することができる（第二の走行状態という）。さらに、エンジンを運転し、電動機を発電機とした状態でバッテリを充電することも可能である。したがって、第二の走行状態では、エンジンを動力源として使用するものの、例えば外部からの電源の取得が困難な状況での使用も可能である。そして、電動機を発電機とした状態とすればバッテリを充電することができるため、電源が無い場所での放電に備えた再充電も可能である。したがって、その活動範囲をより広域なものとすることができる。そして、一つの電動機を電動モータ兼発電機として用いることができるので、電動モータと発電機とを別個に搭載する場合に比べて、コストを低減することが可能である。   Further, according to the tunnel work vehicle according to the present invention, the electric motor serving as both the electric motor and the generator is connected to the engine so that the power transmission can be intermittently connected via the clutch. By connecting, the hydraulic pump can be driven via the electric motor to travel (referred to as a second traveling state). Furthermore, it is possible to charge the battery while the engine is operated and the motor is used as a generator. Therefore, in the second traveling state, the engine is used as a power source, but it can also be used in situations where it is difficult to acquire power from the outside. And since it can charge a battery if it is in the state which used the electric motor as the generator, the recharge for the discharge in the place where there is no power supply is also possible. Therefore, the activity range can be made wider. And since one electric motor can be used as an electric motor and generator, it is possible to reduce cost compared with the case where an electric motor and a generator are mounted separately.

ここで、本発明に係るトンネル用作業車両において、前記油圧ポンプの圧油が給排される油圧回路は、アンロード手段を備え、当該アンロード手段は、前記エンジンを運転し且つ前記クラッチを接続するとともに前記電動機を発電機として動作させた状態のときにアンロード作動可能に構成されていることは好ましい。このような構成であれば、走行が不要なときに、上記第二の走行状態とした上で、更にアンロード手段を作動させることによって、油圧ポンプからの圧油をアンロードした非走行状態でバッテリに充電することができる。したがって、発電中の動力のロスを抑制し、充電の効率を向上させることができる。   Here, in the tunnel work vehicle according to the present invention, the hydraulic circuit for supplying and discharging the hydraulic oil of the hydraulic pump includes unloading means, and the unloading means operates the engine and connects the clutch. In addition, it is preferable that the motor can be unloaded when the motor is operated as a generator. With such a configuration, when traveling is unnecessary, the second traveling state is set, and then the unloading means is further operated to unload the pressure oil from the hydraulic pump. The battery can be charged. Therefore, loss of power during power generation can be suppressed and charging efficiency can be improved.

また、本発明に係るトンネル用作業車両において、外部電源を前記バッテリおよび電動機に供給可能なケーブルリールを更に有することは好ましい。このような構成であれば、外部電源をバッテリおよび電動機の両方に給電できるため、例えば電動機を電動モータとして動作させた第一の走行状態で走行しつつ、バッテリへの充電が可能である。したがって、その活動範囲をより一層広域なものとする上で好適である。   The tunnel work vehicle according to the present invention preferably further includes a cable reel capable of supplying an external power source to the battery and the electric motor. With such a configuration, since the external power source can supply power to both the battery and the electric motor, for example, the battery can be charged while traveling in the first traveling state in which the electric motor is operated as an electric motor. Therefore, it is suitable for making the activity range wider.

上述のように、本発明によれば、坑内の空気の汚染を防止または抑制するとともに、使用範囲を拡大し得るトンネル用作業車両を提供することができる。   As described above, according to the present invention, it is possible to provide a tunnel working vehicle capable of preventing or suppressing air pollution in a mine and expanding the use range.

以下、本発明に係るトンネル用作業車両の一実施形態であるドリルジャンボの走行系統について、図１および図２を適宜参照しつつ説明する。なお、以下説明する走行系統以外の構成については周知のドリルジャンボと同様なため、その説明は省略する。
図１に示すように、このドリルジャンボ１は、走行用の車輪９を備えた台車２内の後部中央に、エンジン（内燃機関）としてディーゼルエンジン７を備えている。そして、このディーゼルエンジン７には、その出力軸に、動力伝達を断続可能なクラッチ６を介して電動機５が接続されている。ここで、この電動機５の動力伝達軸は、その軸端が自身の両側に張り出すとともに各軸端に負荷をそれぞれ接続可能になっており、その動力伝達軸の一端にディーゼルエンジン７が接続されており、他端には、同図に示すように、油圧ポンプ３が接続されている。さらに、この油圧ポンプ３は、台車２内の中央に配置されている油圧モータ４に油圧回路３０を介して接続されており、この油圧モータ４は、油圧ポンプ３からの圧油で駆動し、ドリルジャンボ１を走行可能になっている。 Hereinafter, a traveling system of a drill jumbo that is an embodiment of a tunnel working vehicle according to the present invention will be described with reference to FIGS. 1 and 2 as appropriate. In addition, since it is the same as that of a well-known drill jumbo about structures other than the traveling system demonstrated below, the description is abbreviate | omitted.
As shown in FIG. 1, the drill jumbo 1 includes a diesel engine 7 as an engine (internal combustion engine) in the center of the rear portion in a carriage 2 including traveling wheels 9. And the electric motor 5 is connected to this diesel engine 7 via the clutch 6 which can interrupt power transmission to the output shaft. Here, the power transmission shaft of the electric motor 5 has its shaft ends protruding on both sides of the motor 5 and a load can be connected to each shaft end. A diesel engine 7 is connected to one end of the power transmission shaft. The other end is connected to a hydraulic pump 3 as shown in FIG. Further, the hydraulic pump 3 is connected to a hydraulic motor 4 disposed in the center of the carriage 2 via a hydraulic circuit 30, and the hydraulic motor 4 is driven by pressure oil from the hydraulic pump 3, The drill jumbo 1 can be driven.

さらに、このドリルジャンボ１は、図１に示すように、台車２内の後部右側に、大容量のバッテリ８を備えている。この大容量のバッテリ８は、図２に走行系統のブロック図を示すように、ディーゼルエンジン７用のバッテリ７ａとは別個に設けられたバッテリであり、上記の電動機５との間で電気エネルギーを受け渡し可能に接続されている。つまり、この電動機５は、電動モータおよび発電機を兼ねており、発電機として動作する際には、ディーゼルエンジン７の回転が電動機５のロータ（不図示）に伝えられ、電動機５のステータコイル（不図示）に所定電流を発生する。そして、電動機５による交流発電は、不図示のインバータにより直流に変換された後にバッテリ８に導かれ、バッテリ８を充電する。また、電動モータとして動作する際には、バッテリ８からの電流が不図示のインバータにて所定電流に変換され、その変換された後の電流が電動機５に供給されることで、要求に対応した回転数およびトルクにて電動機５のロータを回転させるようになっている。   Further, as shown in FIG. 1, the drill jumbo 1 includes a large-capacity battery 8 on the rear right side in the carriage 2. The large capacity battery 8 is a battery provided separately from the battery 7a for the diesel engine 7 as shown in the block diagram of the traveling system in FIG. It is connected so that delivery is possible. That is, the electric motor 5 also serves as an electric motor and a generator. When the electric motor 5 operates as a generator, the rotation of the diesel engine 7 is transmitted to a rotor (not shown) of the electric motor 5, and the stator coil ( A predetermined current is generated in (not shown). Then, AC power generation by the electric motor 5 is converted into DC by an inverter (not shown) and then led to the battery 8 to charge the battery 8. Further, when operating as an electric motor, the current from the battery 8 is converted into a predetermined current by an inverter (not shown), and the converted current is supplied to the electric motor 5 to meet the demand. The rotor of the electric motor 5 is rotated at the rotational speed and torque.

また、このドリルジャンボ１は、図１に示すように、台車２の後部左側に、ケーブルリール２２を有している。このケーブルリール２２は、図２に示すように、上記バッテリ８および電動機５それぞれに対し、外部電源２４を供給可能に接続されるようになっている。また、このドリルジャンボ１は、同図に示すように、油圧ポンプ３の圧油が給排される油圧回路３０に、アンロード手段としてアンロード弁３１を備えている。そして、このアンロード弁３１は、ディーゼルエンジン７を運転し且つクラッチ６を接続するとともに電動機５を発電機として動作させた状態のときに、油圧ポンプ３の圧油をアンロードするアンロード作動可能に構成されている。なお、図２では図示を省略しているが、各装置間には、制御用ないし駆動用の電気回路が介在しており、制御用の回路は、不図示の制御部に接続され、各装置および制御部相互は、必要な信号の授受が可能になっており、また、駆動用の電気回路は、各装置のアクチュエータ等に必要な電力の供給が可能に構成されている。   The drill jumbo 1 has a cable reel 22 on the left side of the rear portion of the carriage 2 as shown in FIG. As shown in FIG. 2, the cable reel 22 is connected to the battery 8 and the electric motor 5 so that an external power source 24 can be supplied. Further, as shown in the figure, the drill jumbo 1 is provided with an unload valve 31 as an unload means in a hydraulic circuit 30 to which pressure oil from the hydraulic pump 3 is supplied and discharged. The unload valve 31 is operable to unload the hydraulic oil from the hydraulic pump 3 when the diesel engine 7 is operated and the clutch 6 is connected and the motor 5 is operated as a generator. It is configured. Although not shown in FIG. 2, an electric circuit for control or driving is interposed between the devices, and the control circuit is connected to a control unit (not shown). The control units can exchange necessary signals, and the electric circuit for driving is configured to be able to supply electric power necessary for actuators and the like of each device.

次に、このドリルジャンボ１の走行系統の動作、およびその作用・効果について図３〜図７を適宜参照しつつ説明する。
上述したように、このドリルジャンボ１は、油圧ポンプ３と、その油圧ポンプ３からの圧油で駆動する走行用の油圧モータ４とを備えており、さらに、油圧ポンプ３を駆動可能な電動モータおよび発電機を兼ねる電動機５と、その電動機５との間で電気エネルギーを受け渡しする大容量のバッテリ８と、電動機５に、動力伝達を断続可能なクラッチ６を介して接続されたディーゼルエンジン７とを備えているので、例えば図３に示すように、ディーゼルエンジン７を停止し且つクラッチ６を分離し、さらに、大容量のバッテリ８によって電動機５に電力を供給することによって電動機５を電動モータとして動作させ、その電動機５で油圧ポンプ３を駆動して必要な圧油を油圧モータ４に供給することによって油圧モータ４で走行することができる（第一の走行状態）。したがって、この第一の走行状態では、大容量のバッテリ８から供給された電力で電動機５を電動モータとして動作させて走行するので、坑内の空気の汚染を防止または抑制しつつ必要な作業を行うことができる。 Next, the operation of the traveling system of the drill jumbo 1 and its actions and effects will be described with reference to FIGS.
As described above, the drill jumbo 1 includes the hydraulic pump 3 and the traveling hydraulic motor 4 that is driven by the pressure oil from the hydraulic pump 3, and the electric motor that can drive the hydraulic pump 3. And an electric motor 5 that also serves as a generator, a large-capacity battery 8 that transfers electric energy to and from the electric motor 5, and a diesel engine 7 that is connected to the electric motor 5 via a clutch 6 that can intermittently transmit power. 3, for example, as shown in FIG. 3, the diesel engine 7 is stopped and the clutch 6 is separated, and further, electric power is supplied to the electric motor 5 by a large-capacity battery 8 to make the electric motor 5 an electric motor. The hydraulic motor 4 can be driven by driving the hydraulic pump 3 with the electric motor 5 and supplying the necessary pressure oil to the hydraulic motor 4. That (first traveling state). Therefore, in the first traveling state, the electric motor 5 is operated as an electric motor with the electric power supplied from the large-capacity battery 8, so that necessary work is performed while preventing or suppressing contamination of the air in the mine. be able to.

また、このドリルジャンボ１によれば、例えば図４に示すように、ディーゼルエンジン７を運転し且つクラッチ６を接続するとともに電動機５の動力伝達軸を介して油圧ポンプ３を駆動して必要な圧油を油圧モータ４に供給することによって油圧モータ４で走行することができる（第二の走行状態）。なお、この第二の走行状態の際には、電動機５内の回転子は回転しているが、発電は行わずディーゼルエンジン７の動力のロスとならないようになっている。   Further, according to this drill jumbo 1, for example, as shown in FIG. 4, the diesel engine 7 is operated and the clutch 6 is connected, and the hydraulic pump 3 is driven via the power transmission shaft of the electric motor 5 to obtain the necessary pressure. By supplying oil to the hydraulic motor 4, the vehicle can travel with the hydraulic motor 4 (second traveling state). In the second running state, the rotor in the electric motor 5 is rotating, but power generation is not performed and power loss of the diesel engine 7 is not caused.

さらに、このドリルジャンボ１によれば、電動機５の動力伝達軸は、その軸端が自身の両側に張り出すとともに各軸端に負荷をそれぞれ接続可能になっており、その動力伝達軸の一端にディーゼルエンジン７が接続され、他端に油圧ポンプ３が接続されているので、ディーゼルエンジン７、電動機５および油圧ポンプ３を直列に接続可能であり、一つの電動機５を電動モータ兼発電機として用いる構成を、コンパクトに装備することを可能としている。   Furthermore, according to this drill jumbo 1, the power transmission shaft of the electric motor 5 has its shaft ends projecting on both sides of the shaft and a load can be connected to each shaft end. Since the diesel engine 7 is connected and the hydraulic pump 3 is connected to the other end, the diesel engine 7, the electric motor 5 and the hydraulic pump 3 can be connected in series, and one electric motor 5 is used as an electric motor / generator. It is possible to equip the structure compactly.

また、このドリルジャンボ１によれば、油圧ポンプ３の圧油が給排される油圧回路３０は、アンロード手段としてアンロード弁３１を備えており、このアンロード弁３１は、ディーゼルエンジン７を運転し且つクラッチ６を接続するとともに電動機５を発電機として動作させた状態のときにアンロード作動可能に構成されているので、走行が不要なときに、図５に示すように、上記第二の走行状態とした上で、更にアンロード弁３１を作動させることによって、油圧ポンプ３からの圧油をアンロードした非走行状態でバッテリ８に充電することができる。したがって、発電中の動力のロスを抑制し、充電の効率を向上させることができる。   According to the drill jumbo 1, the hydraulic circuit 30 that supplies and discharges the hydraulic oil from the hydraulic pump 3 includes the unload valve 31 as unloading means. Since the unloading operation is possible when the motor is operated and the clutch 6 is connected and the electric motor 5 is operated as a generator, when the traveling is unnecessary, as shown in FIG. In this state, the battery 8 can be charged in a non-running state in which the pressure oil from the hydraulic pump 3 is unloaded by further operating the unload valve 31. Therefore, loss of power during power generation can be suppressed and charging efficiency can be improved.

また、このドリルジャンボ１によれば、外部電源２４をバッテリ８および電動機５に供給可能なケーブルリール２２を有するので、例えば図６に示すように、外部電源２４からの電力を電動機５に直に供給しつつ、電動機５を電動モータとした第一の走行状態で走行可能である。あるいは、例えば図７に示すように、外部電源２４によってバッテリ８を充電することもできる。したがって、その活動範囲をより一層広域なものとすることができる。   Moreover, according to this drill jumbo 1, since it has the cable reel 22 which can supply the external power supply 24 to the battery 8 and the electric motor 5, as shown in FIG. 6, for example, the electric power from the external power supply 24 is directly supplied to the electric motor 5. It can drive | work in the 1st driving | running | working state which used the electric motor 5 as the electric motor, supplying. Alternatively, for example, as shown in FIG. 7, the battery 8 can be charged by an external power source 24. Therefore, the activity range can be made even wider.

以上説明したように、このドリルジャンボ１によれば、坑内の空気の汚染を防止または抑制するとともに、使用範囲を拡大することができる。
なお、本発明に係るトンネル用作業車両は、上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しなければ種々の変形が可能である。
例えば、上記実施形態では、本発明に係るトンネル用作業車両として、ドリルジャンボを例に説明したが、これに限定されず、本発明に係るトンネル用作業車両としては、例えば、コンクリート吹付機、支保工エレクター、ローディングショベル、ロードヘッダ、ブームヘッダ、シャフトローダ、または高所作業車等にも適用可能である。 As described above, according to the drill jumbo 1, it is possible to prevent or suppress the contamination of the air in the mine and to expand the use range.
The tunnel work vehicle according to the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the drill jumbo has been described as an example of the tunnel working vehicle according to the present invention. However, the present invention is not limited thereto, and examples of the tunnel working vehicle according to the present invention include a concrete sprayer and a support. The present invention can also be applied to a construction erector, a loading excavator, a load header, a boom header, a shaft loader, or an aerial work vehicle.

また、例えば、上記実施形態では、ケーブルリール２２は、外部電源２４をバッテリ８および電動機５に供給可能に装備されている例で説明したが、これに限定されず、ケーブルリール２２を装備しない構成であってもよい。また、ケーブルリール２２を装備する場合において、外部電源２４をバッテリ８または電動機５のいずれか一方に供給可能に装備されているものであってもよい。しかし、トンネル用作業車両の活動範囲をより一層広域なものとする上では、ケーブルリール２２を装備し、外部電源２４をバッテリ８および電動機５に供給可能になっていることは好ましい。   For example, in the above-described embodiment, the cable reel 22 is described as being provided so that the external power supply 24 can be supplied to the battery 8 and the electric motor 5. However, the present invention is not limited thereto, and the cable reel 22 is not equipped. It may be. Further, when the cable reel 22 is provided, the external power supply 24 may be provided so as to be supplied to either the battery 8 or the electric motor 5. However, in order to further widen the activity range of the tunnel work vehicle, it is preferable that the cable reel 22 is provided and the external power supply 24 can be supplied to the battery 8 and the electric motor 5.

また、例えば、上記実施形態では、油圧ポンプ３の圧油が給排される油圧回路３０は、アンロード手段としてアンロード弁３１を備える例で説明したが、これに限定されず、アンロード手段を有しない構成としてもよい。しかし、ディーゼルエンジン７を運転しつつも、走行が不要なときに、発電中の動力のロスを抑制し、充電の効率を向上させる上では、上記例示したように、アンロード手段を有する構成とすることは好ましい。また、アンロード手段としてアンロード弁３１を備える例で説明したが、アンロード手段は、これに限らず、例えば油圧ポンプ３の作動油吐出量を無くしたり、油圧回路の圧力を無くしたりすることが可能な構成であれば、種々の機構を採用可能である。   Further, for example, in the above-described embodiment, the hydraulic circuit 30 that supplies and discharges the pressure oil of the hydraulic pump 3 has been described as an example including the unload valve 31 as the unloading means. It is good also as a structure which does not have. However, while driving the diesel engine 7 and when traveling is unnecessary, in order to suppress the loss of power during power generation and improve the charging efficiency, the configuration having unloading means, as exemplified above, It is preferable to do. Further, the example of providing the unload valve 31 as the unloading means has been described. However, the unloading means is not limited to this, and for example, the hydraulic oil discharge amount of the hydraulic pump 3 is eliminated or the pressure of the hydraulic circuit is eliminated. As long as the configuration is possible, various mechanisms can be employed.

本発明に係るトンネル用作業車両の一実施形態であるドリルジャンボの概略説明図であり、同図（ａ）はその平面図、同図（ｂ）はその正面図である。It is a schematic explanatory drawing of the drill jumbo which is one Embodiment of the working vehicle for tunnels which concerns on this invention, The figure (a) is the top view, The figure (b) is the front view. 走行系統の構成を説明するブロック図である。It is a block diagram explaining the structure of a driving | running | working system. 走行系統の動作を説明するブロック図である。It is a block diagram explaining operation | movement of a driving | running | working system | strain. 走行系統の動作を説明するブロック図である。It is a block diagram explaining operation | movement of a driving | running | working system | strain. 走行系統の動作を説明するブロック図である。It is a block diagram explaining operation | movement of a driving | running | working system | strain. 走行系統の動作を説明するブロック図である。It is a block diagram explaining operation | movement of a driving | running | working system | strain. 走行系統の動作を説明するブロック図である。It is a block diagram explaining operation | movement of a driving | running | working system | strain.

符号の説明Explanation of symbols

１ ドリルジャンボ（トンネル用作業車両）
２ 台車
３ 油圧ポンプ
４ 油圧モータ
５ 電動機
６ クラッチ
７ ディーゼルエンジン（エンジン）
８ バッテリ
９ 車輪
２２ ケーブルリール
２４ 外部電源
３０ 油圧回路
３１ アンロード弁（アンロード手段） 1 Drill jumbo (work vehicle for tunnel)
2 truck 3 hydraulic pump 4 hydraulic motor 5 electric motor 6 clutch 7 diesel engine (engine)
8 Battery 9 Wheel 22 Cable reel 24 External power supply 30 Hydraulic circuit 31 Unload valve (unload means)

Claims (2)

トンネル内での作業に用いられ、油圧ポンプと、その油圧ポンプからの圧油で駆動する走行用の油圧モータとを備える作業車両であって、
前記油圧ポンプを駆動可能な電動モータおよび発電機を兼ねる電動機と、その電動機との間で電気エネルギーを受け渡しするバッテリと、前記電動機に、クラッチを介して動力伝達を断続可能に接続されたエンジンとを備え、
前記油圧ポンプの圧油が給排される油圧回路は、アンロード手段を備え、当該アンロード手段は、前記エンジンを運転し且つ前記クラッチを接続するとともに前記電動機を発電機として動作させた状態のときにアンロード作動可能に構成されていることを特徴とするトンネル用作業車両。 A working vehicle that is used for work in a tunnel and includes a hydraulic pump and a traveling hydraulic motor that is driven by pressure oil from the hydraulic pump,
An electric motor that also serves as an electric motor and a generator capable of driving the hydraulic pump; a battery that transfers electric energy to and from the electric motor; and an engine that is connected to the electric motor through a clutch so that power transmission can be intermittently connected. equipped with a,
The hydraulic circuit that supplies and discharges the hydraulic oil of the hydraulic pump includes unloading means that operates the engine, connects the clutch, and operates the electric motor as a generator. A tunnel working vehicle characterized in that it is sometimes configured to be unloadable. 外部電源を前記バッテリおよび電動機に供給可能なケーブルリールを更に有することを特徴とする請求項１に記載のトンネル用作業車両。 The tunnel working vehicle according to claim 1, further comprising a cable reel capable of supplying an external power source to the battery and the electric motor .
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