WO2013018422A1 - 油圧ショベル - Google Patents
油圧ショベル Download PDFInfo
- Publication number
- WO2013018422A1 WO2013018422A1 PCT/JP2012/063250 JP2012063250W WO2013018422A1 WO 2013018422 A1 WO2013018422 A1 WO 2013018422A1 JP 2012063250 W JP2012063250 W JP 2012063250W WO 2013018422 A1 WO2013018422 A1 WO 2013018422A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- louver
- vertical frame
- vertical
- exterior door
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0891—Lids or bonnets or doors or details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
Definitions
- the present invention relates to a hydraulic excavator, and more particularly to a louver structure of an exterior door provided in the hydraulic excavator.
- the hydraulic excavator is equipped with various cooling devices including a radiator for cooling the cooling water of the engine, an oil cooler for cooling the hydraulic oil of the hydraulic equipment, and an aftercooler for cooling the compressed air supplied to the engine. Yes.
- These plural cooling devices are arranged on the side surface of the vehicle body in the hydraulic excavator.
- An exterior door is provided so as to cover the plurality of cooling devices.
- the exterior door is formed with an opening for guiding cooling air to the cooling device, and a louver is attached to the opening so that rain, dust, etc. do not enter, and the direction of air flow is determined. ing.
- a cooling device is disposed on a side surface of a vehicle body, and a side door and an engine hood are provided to cover these cooling devices.
- a lid is provided to cover.
- an opening for taking in outside air is formed in the side door or the like.
- the hydraulic excavator disclosed in Patent Document 2 shows a configuration in which a louver is provided in an opening formed in an exterior door.
- hybrid excavators have also been promoted.
- a radiator for cooling an electric motor system such as an inverter herein, this radiator is referred to as “hybrid radiator”. For this reason, it is necessary to prevent the heat balance from deteriorating by increasing the supply amount of the cooling air as compared with the conventional apparatus.
- the exterior door generally has a flat surface portion in which an opening as an air inlet is formed and a curved surface portion formed in an upper portion of the flat surface portion.
- an opening in the curved surface portion of the exterior door In order to increase inhaled air, it is conceivable to form an opening in the curved surface portion of the exterior door.
- An object of the present invention is to form a larger opening so that sufficient air can be taken in from the exterior door, and to close the opening with a louver without welding a bracket to the curved surface of the exterior door. There is to be able to do it.
- the hydraulic excavator according to the first invention includes a lower traveling body, an upper swing body, an exterior door, and a louver.
- the upper swing body is rotatably supported by the lower traveling body, and includes a swivel base and a frame frame having a lower end portion fixed to the swivel base.
- the exterior door is supported by the frame frame of the upper swing body so as to be freely opened and closed, and has a curved surface portion in which an opening is formed.
- the louver is attached to the frame of the upper swing body and closes the opening of the closed exterior door.
- the opening is formed in the curved portion of the exterior door, a wider opening can be formed compared to the conventional case by forming the opening in the flat portion as in the conventional case, and more air can be formed. Can be taken in from the outside.
- the louver which closes the opening part of a curved-surface part is mounted
- the louver even when the exterior door is opened, the louver remains on the frame frame side.
- the opening portion of the curved surface portion has a small opening area, and therefore the occupying area of the louver that closes the opening portion is small. For this reason, the louver does not get in the way when accessing the components disposed inside the exterior door.
- the hydraulic excavator according to the second invention is the hydraulic excavator according to the first invention, wherein the frame has a first vertical frame, a second vertical frame, and an upper frame.
- Each of the first vertical frame and the second vertical frame has a lower end fixed to the swivel base, extends upward, and is spaced from each other.
- the upper frame is detachably disposed with respect to the first and second vertical frames between the upper end portion of the first vertical frame and the upper end portion of the second vertical frame.
- the louver is fixed to the upper frame and is detachable with respect to the first and second vertical frames together with the upper frame.
- the louver is attached to the upper frame that forms the frame.
- a replacement part may be disposed below the upper frame.
- the louver is fixed to the upper frame so that the louver and the upper frame can be detached from other frames as a unit. Therefore, the louver does not hinder the parts replacement work.
- a hydraulic excavator according to a third aspect of the invention is the hydraulic excavator of the second aspect of the invention, wherein the louver has a first bracket and a second bracket disposed between the first vertical frame and the second vertical frame, and one end thereof is the first.
- the upper end of the first bracket is fixed to one end of the upper frame on the first vertical frame side
- the upper end of the second bracket is fixed to the other end of the upper frame on the second vertical frame side.
- louver can be reliably fixed to the upper frame in a stable posture.
- a hydraulic excavator according to a fourth invention is the hydraulic excavator according to any one of the first to third inventions, wherein the exterior door further has a flat surface portion formed by a flat surface below the curved surface portion. A different opening from the opening formed in the curved surface is formed.
- the hydraulic excavator further includes a louver that is attached to the exterior door and closes the opening of the flat portion.
- a hydraulic excavator according to a fifth invention is the hydraulic excavator according to the first invention, wherein the frame frame includes a first vertical frame, a second vertical frame, and an upper frame.
- Each of the first vertical frame and the second vertical frame has a lower end fixed to the swivel base, extends upward, and is spaced from each other.
- the upper frame is detachably disposed with respect to the first and second vertical frames between the upper end portion of the first vertical frame and the upper end portion of the second vertical frame.
- the louver is supported by the first vertical frame and the second vertical frame.
- louver since the louver is fixed to the first and second vertical frames, it is not necessary to attach the louver to the exterior door side. Further, since the upper frame and the louver can be detached from the first and second vertical frames, the louver does not hinder the work when replacing the parts arranged below the upper frame.
- a hydraulic excavator according to a sixth aspect of the present invention is the hydraulic excavator according to any one of the first to fifth aspects of the invention, which is supported by the upper swing body and disposed at a position facing the opening formed in the flat surface portion and the curved surface portion.
- the unit is further provided.
- a hydraulic excavator according to a seventh aspect of the present invention is the hydraulic excavator according to any one of the first to sixth aspects, further comprising a replacement part that is supported by the upper swing body and disposed below the upper frame.
- the louver and the upper frame can be removed in the replacement work of replacement parts such as a battery, the replacement work becomes easy.
- FIG. 1 is an external perspective view of a hybrid excavator according to an embodiment of the present invention.
- the external appearance perspective view which looked at some upper revolving bodies of the excavator of Drawing 1 from back.
- the external appearance perspective view for demonstrating the structure relevant to an exterior door and an exterior door.
- the external appearance perspective view of an exterior door The external appearance perspective view which shows a frame frame and a sublouver. Sectional drawing of an upper frame and a sublouver. The figure which removed the upper frame and the sublouver from FIG. The figure equivalent to FIG. 3 of other embodiment of this invention.
- the hydraulic excavator 1 is a hybrid hydraulic excavator, and includes a swing electric motor, a generator motor, an inverter as a converter, a capacitor as a capacitor, a diesel engine, and the like.
- the hybrid excavator 1 energy generated when the vehicle body turns is decelerated is converted into electric energy, and the electric energy obtained together with the energy of the generator motor directly connected to the engine is stored in the capacitor.
- the stored electrical energy is used as auxiliary energy during engine acceleration through the generator motor.
- “front”, “rear”, “left”, and “right” are directions determined based on the operator seated in the driver's seat.
- the hydraulic excavator 1 illustrated in FIG. 1 includes a lower traveling body 2, an upper swing body 3, a work implement 4, and a cab 5.
- the lower traveling body 2 has a pair of crawler belts C on both right and left sides, and can travel by driving the crawler belts C.
- the upper swing body 3 is supported by the lower traveling body 2 so as to be swingable, and can be swung in an arbitrary direction by a swing electric motor (not shown).
- the work machine 4 and the cab 5 are mounted on the upper swing body 3.
- the work machine 4 includes a boom 10, an arm 11, and a bucket 12. Further, the work machine 4 has a plurality of hydraulic cylinders for driving these constituent members 10 to 12.
- an engine 15 is disposed horizontally at the rear of the upper swing body 3. That is, the crankshaft (not shown) of the engine 15 is arranged so as to be substantially orthogonal to the front-rear direction of the hydraulic excavator 1.
- the engine 15 is covered with an engine cover and an exterior cover 16 installed above the engine cover.
- a cooling fan 17 that is rotated by the engine 15 is provided at the tip (right end) of the engine 15.
- a rear exterior door 21 and a front exterior door 22 are provided at the right end of the rear part of the upper swing body 3 so as to be freely opened and closed.
- FIG. 2 only the upper swing body 3 is shown, and other configurations are omitted.
- FIG. 3 shows the rear exterior door 21, the front exterior door 22, and the configuration related to these exterior doors 21 and 22.
- the upper swing body 3 includes a swivel base 24 and a frame frame 25.
- the frame frame 25 includes first to third vertical frames 26, 27, and 28 and first and second upper frames 29 and 30.
- first to third vertical frames 26, 27, and 28 are all fixed to the side of the swivel base 24.
- portions (vertical portions) 26a, 27a, 28a excluding the upper end portion extend substantially vertically upward with respect to the swivel 24, and the upper portions (inclined portions) 26b, 27b, 28b are Inclined toward the inside of the car.
- the first vertical frame 26 is arranged at the rearmost side, and the second vertical frame 27 is arranged in front of the first vertical frame 26 with a predetermined interval.
- the third vertical frame 28 is disposed in front of the second vertical frame 27 at a predetermined interval. The interval between the first vertical frame 26 and the second vertical frame 27 is set wider than the interval between the second vertical frame 27 and the third vertical frame 28.
- the first upper frame 29 extends in the front-rear direction, the rear end portion 29 a is fixed to the upper end surface of the first vertical frame 26 by the bolt 32, and the front end portion 29 b is fixed to the upper end surface of the second vertical frame 27 by the bolt 32. It is fixed.
- the second upper frame 30 also extends in the front-rear direction, the rear end 30a is fixed to the upper end surface of the second vertical frame 26 together with the front end 29b of the first upper frame 29 by the bolt 32, and the front end 30b is The three vertical frames 28 are fixed to the upper end surface by bolts 32.
- first upper frame 29 and the second upper frame 30 are detachable from the vertical frames 26 to 28 by removing or tightening the bolts 32, respectively.
- the rear exterior door 21 is provided between the first vertical frame 26 and the second vertical frame 27, and the front exterior door 22 is provided between the second vertical frame 27 and the third vertical frame 28.
- the rear exterior door 21 is supported at its rear side by a hinge (not shown) on the first vertical frame 26 so that it can be opened and closed.
- the front exterior door 22 is supported at its front side portion by a third vertical frame 28 so as to be opened and closed by a hinge (not shown).
- a cooling unit 35 is disposed at the rear of the swivel base 24.
- the cooling unit 35 includes a radiator for cooling engine coolant, an oil cooler for cooling hydraulic oil, an aftercooler for cooling compressed air supplied to the engine, and a hybrid for cooling an electric motor system such as an inverter. It has a radiator and a condenser for an air conditioner.
- a plurality of batteries 36 as replacement parts are mounted on the side of the cooling unit 35 and below the first upper frame 29.
- FIG. 4 shows the exterior doors 21 and 22. Since the rear exterior door 21, the front exterior door 22, and the configuration related thereto are basically the same, the rear exterior door 21 and the configuration related thereto will be described here.
- the rear exterior door 21 has a flat surface portion 211 that occupies approximately 2/3 of the lower portion in the vertical direction, and a curved surface portion 212 formed above the flat surface portion 211.
- the flat surface portion 211 faces the vertical portions 26a and 27a of the first and second vertical frames 26 and 27, and the curved surface portion 212 faces the inclined portions 26b and 27b of the first and second vertical frames 26 and 27.
- the plane part 211 has a plane that stands substantially vertically and has a main opening 211a.
- the curved surface portion 212 has a curved surface extending in an arc shape upward from the upper end of the flat surface portion 211 toward the inside of the vehicle body, and has a sub-opening 212a.
- the sub-opening 212a has a smaller opening area than the main opening 211a.
- the main opening 211 a and the sub opening 212 a are covered with the main louver 40 and the sub louver 41, respectively, in the closed state of the rear exterior door 21.
- the main louver 40 and the sub louver 41 are members for suppressing the entry of foreign matter such as rain and dust and determining the direction of air flow.
- these louvers 40 and 41 have different external shapes, they basically have the same configuration.
- the main louver 40 is fixed to the inner surface (the surface on the vehicle body side) of the rear exterior door 21, and the sub louver 41 is fixed to the frame frame 25. Since the shape and structure of the main louver 40 and the fixing structure to the rear exterior door 21 are exactly the same as in the prior art, description thereof will be omitted, and here, the sub louver 41 and its fixing structure will be described in detail.
- the secondary louver 41 is disposed between the first vertical frame 26 and the second vertical frame 27 along the inclined portions 26 b and 27 b of both the vertical frames 26 and 27.
- the sub louver 41 includes a first end bracket 411 and a second end bracket 412, a plurality of intermediate brackets 413, and a plurality of blades 414.
- Each louver for the front exterior door 22 has only an end bracket, and no intermediate bracket is provided.
- the first end bracket 411 and the second end bracket 412 are disposed between the first vertical frame 26 and the second vertical frame 27, and the first end bracket 411 is adjacent to the first vertical frame 26,
- the second end bracket 412 is disposed adjacent to the second vertical frame 27.
- Both end brackets 411 and 412 are plate-like members extending in the vertical direction, and as shown in FIGS. 5 and 6, are fixed upward in parallel to a first upper frame (hereinafter simply referred to as “upper frame”) 29.
- Portion 412a (only the second end bracket 412 appears in FIG. 6, but the first end bracket 411 has the same configuration), and the inclined portion 27b of the second vertical frame 27 from the upper fixing portion 412a. , And a slat fixing portion 412b extending downward.
- the lower ends of the wing plate fixing portions 411b and 412b of the end brackets 411 and 412 are respectively rearward and forward. It has lateral fixing portions 411c and 412c that protrude.
- Each of the plurality of intermediate brackets 413 is a plate-like member extending in the vertical direction, similarly to the end brackets 411 and 412, and extends along the upper fixing portion 413 a and the inclined portions 26 b and 27 b of the vertical frames 26 and 27.
- An extending wing plate fixing portion 413b and a connecting portion 413c for connecting both the fixing portions 413a and 413b are provided.
- the wing plate fixing portion 413b is formed in a stepped shape having a plurality of horizontal planes 413d on the outer side of the vehicle body.
- Each of the plurality of slats 414 is a belt-like member extending in the front-rear direction, and has a substantially horizontal fixing portion 414a and a main body portion 414b extending obliquely downward from the fixing portion 414a as shown in FIG. ing.
- the rear end surface of the wing plate 414 is welded to the front surface of the wing plate fixing portion 411b of the first end bracket 411, and the front end surface is welded to the rear surface of the wing plate fixing portion 412b of the second end bracket 412.
- the fixing portion 414a of the wing plate 414 is welded to a horizontal plane 413d of the stepped shape of the plurality of intermediate brackets 413.
- the two end brackets 411 and 412, the plurality of intermediate brackets 413, and the plurality of blades 414 are fixed to each other by welding to form a single sublouver 41. .
- the upper surfaces of the upper fixing portions 411a, 412a, and 413a of the end brackets 411 and 412 and the intermediate bracket 413 and the lower surface of the upper frame 29 are welded.
- the lateral fixing portions 411c and 412c of the both end brackets 411 and 412 are detachably attached to the corresponding vertical frames 26 and 27 by bolts 45.
- the sub louver 41 is integrated with the upper frame 29 and is detachable from the vertical frames 26 and 27.
- the configuration of the front exterior door 22 is basically the same as the configuration of the rear exterior door 21 except for the dimensions.
- the sub louver for closing the sub opening of the front exterior door 22 and its mounting structure are basically the same as the sub louver 41 for the rear exterior door 21 and its mounting structure.
- the main opening 211 a is formed in the flat surface portion 211 and the sub opening 212 a is formed in the curved surface portion 212, so that more air can be taken in compared to the conventional structure. it can. Therefore, particularly in a hybrid excavator that requires a hybrid radiator, the heat balance can be improved.
- the sub louver 41 that closes the sub opening 212a is fixed to the frame frame 25 side instead of the rear exterior door 21, a bracket for providing the sub louver 41 on the rear exterior door 21 becomes unnecessary. Further, the weight of the rear exterior door 21 is not increased. Furthermore, for the same reason, the sub louver 41 can be easily and stably fixed. Since the secondary louver 41 is fixed to the frame frame 25 side, the secondary louver 41 remains on the vehicle body side when the rear exterior door 21 is opened. However, since the occupied area of the secondary louver 41 is relatively small, the secondary louver 41 does not get in the way when accessing internal components.
- FIG. 7 shows a state where the upper frame 29 and the auxiliary louver 41 are removed. Therefore, the sub louver 41 does not hinder the work when the battery 36 is replaced.
- the sub louver 41 ′ may be fixed to the first and second vertical frames 26 and 27.
- the configuration of the sub louver 41 'itself is the same as that of the above embodiment.
- the end brackets 411 ′ and 412 ′ and the intermediate bracket are not welded to the first upper frame 29.
- the lateral fixing portions 411 c ′ and 412 c ′ of the end brackets 411 ′ and 412 ′ are attached to the first vertical frame 26 and the second vertical frame 27 with bolts 45.
- the present invention is applied to both the rear exterior door and the front exterior door, but the present invention may be applied to only one door.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Component Parts Of Construction Machinery (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
Description
本発明の一実施形態による油圧ショベル1を図1に示す。油圧ショベル1は、ハイブリッド型の油圧ショベルであり、旋回電気モータ、発電機モータ、変換器としてのインバータ、蓄電器としてのキャパシタ、ディーゼルエンジン等を備えている。そして、このハイブリッド油圧ショベル1では、車体旋回の減速時に発生するエネルギが電気エネルギに変換され、エンジンと直結した発電機モータのエネルギと併せて得られた電気エネルギはキャパシタに蓄えられる。また、蓄えられた電気エネルギは、発電機モータを通じてエンジン加速時の補助エネルギとして利用される。なお、以下の説明において、「前」「後」「左」「右」とは、運転席に着座したオペレータを基準として決められる方向である。
図3に、後外装ドア21、前外装ドア22、及びこれらの外装ドア21,22に関連する構成を抽出して示している。この図3に示すように、上部旋回体3は、旋回台24と、枠フレーム25と、を有している。枠フレーム25は、第1~第3縦フレーム26,27,28と、第1及び第2上部フレーム29,30と、を有している。
図4に外装ドア21,22を示している。後外装ドア21、前外装ドア22、及びこれらに関連する構成は基本的に同様であるので、ここでは、後外装ドア21及びこれに関連する構成について説明する。
図4に示すように、主開口部211a及び副開口部212aは、後外装ドア21の閉状態において、それぞれ主ルーバ40及び副ルーバ41によって覆われている。主ルーバ40及び副ルーバ41は、雨や砂塵等の異物の侵入を抑えるとともにエアの流れの方向を決めるための部材である。これらのルーバ40,41は、外観形状は異なるが、基本的には同様の構成である。図3から明らかなように、主ルーバ40は後外装ドア21の内面(車体側の面)に固定されており、副ルーバ41は枠フレーム25に固定されている。主ルーバ40の形状、構造、及び後外装ドア21への固定構造は従来とまったく同様であるので、説明を省略し、ここでは、副ルーバ41及びその固定構造について、以下に詳細に説明する。
後外装ドア21において、平面部211に主開口部211aが形成されるとともに、曲面部212に副開口部212aが形成されているので、従来の構造に比較してより多くのエアを取り込むことができる。したがって、特に、ハイブリッドラジエータが必要なハイブリッド油圧ショベルにおいても、ヒートバランスを良好にすることができる。
本発明は以上のような実施形態に限定されるものではなく、本発明の範囲を逸脱することなく種々の変形又は修正が可能である。
2 下部走行体
3 上部旋回体
21,22 外装ドア
211平面部
211a 主開口部
212 曲面部
212a 副開口部
24 旋回台
25 枠フレーム
26~28 縦フレーム
29,30 上部フレーム
35 冷却ユニット
36 バッテリ
40 主ルーバ
41,41’ 副ルーバ
411,411’,412,412’ 端部ブラケット
414 羽板
Claims (7)
- 下部走行体と、
前記下部走行体に旋回自在に支持され、旋回台と、下端部が前記旋回台に固定された枠フレームと、を有する上部旋回体と、
前記上部旋回体の枠フレームに開閉自在に支持され、開口部が形成された曲面部を有する外装ドアと、
前記上部旋回体の枠フレームに装着され、閉状態の前記外装ドアの開口部を塞ぐルーバと、
を備えた油圧ショベル。 - 前記枠フレームは、
それぞれ下端部が前記旋回台に固定されるとともに上方に延び、互いに間隔をあけて配置された第1縦フレーム及び第2縦フレームと、
前記第1縦フレームの上端部と前記第2縦フレームの上端部との間に、前記第1及び第2縦フレームに対して着脱自在に配置された上部フレームと、を有し、
前記ルーバは、前記上部フレームに固定され、前記上部フレームとともに前記第1及び第2縦フレームに対して着脱自在である、
請求項1に記載の油圧ショベル。 - 前記ルーバは、前記第1縦フレームと前記第2縦フレームとの間に配置された第1ブラケット及び第2ブラケットと、一端部が前記第1ブラケットに固定されるとともに他端部が前記第2ブラケットに固定された複数の羽板と、をさらに有し、
前記第1ブラケットの上端部は前記上部フレームの前記第1縦フレーム側の一端部に固定され、前記第2ブラケットの上端部は前記上部フレームの前記第2縦フレーム側の他端部に固定されている、
請求項2に記載の油圧ショベル。 - 前記外装ドアは、前記曲面部の下方において平坦な面で形成された平面部をさらに有し、
前記平面部には、前記曲面部に形成された開口部とは別の開口部が形成されており、
前記外装ドアに装着され、前記平面部の開口部を塞ぐルーバをさらに備えた、
請求項1から3のいずれかに記載の油圧ショベル。 - 前記枠フレームは、
それぞれ下端部が前記旋回台に固定されるとともに上方に延び、互いに間隔をあけて配置された第1縦フレーム及び第2縦フレームと、
前記第1縦フレームの上端部と前記第2縦フレームの上端部との間に、前記第1及び第2縦フレームに対して着脱自在に配置された上部フレームと、を有し、
前記ルーバは前記第1縦フレーム及び前記第2縦フレームに支持されている、
請求項1に記載の油圧ショベル。 - 前記上部旋回体に支持され、前記平面部及び前記曲面部に形成された開口部と対向する位置に配置された冷却ユニットをさらに備えた、請求項4に記載の油圧ショベル。
- 前記上部旋回体に支持され、前記上部フレームの下方に配置された交換部品をさらに備えた、請求項1から6のいずれかに記載の油圧ショベル。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011166228A JP5228093B2 (ja) | 2011-07-29 | 2011-07-29 | 油圧ショベル |
US13/700,392 US8657048B2 (en) | 2011-07-29 | 2012-05-24 | Hydraulic excavator |
CN201280001775.XA CN103025964B (zh) | 2011-07-29 | 2012-05-24 | 液压挖掘机 |
DE112012000085.4T DE112012000085B4 (de) | 2011-07-29 | 2012-05-24 | Hydraulikbagger |
KR1020127028973A KR101350254B1 (ko) | 2011-07-29 | 2012-05-24 | 유압 셔블 |
Applications Claiming Priority (2)
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JP2011-166228 | 2011-07-29 | ||
JP2011166228A JP5228093B2 (ja) | 2011-07-29 | 2011-07-29 | 油圧ショベル |
Publications (1)
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WO2013018422A1 true WO2013018422A1 (ja) | 2013-02-07 |
Family
ID=47628963
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PCT/JP2012/063250 WO2013018422A1 (ja) | 2011-07-29 | 2012-05-24 | 油圧ショベル |
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US (1) | US8657048B2 (ja) |
JP (1) | JP5228093B2 (ja) |
KR (1) | KR101350254B1 (ja) |
CN (1) | CN103025964B (ja) |
DE (1) | DE112012000085B4 (ja) |
WO (1) | WO2013018422A1 (ja) |
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JP5501534B1 (ja) * | 2013-02-15 | 2014-05-21 | 株式会社小松製作所 | 油圧ショベル |
JP5821872B2 (ja) * | 2013-02-22 | 2015-11-24 | コベルコ建機株式会社 | 建設機械の吸気構造 |
WO2014192924A1 (ja) * | 2014-05-30 | 2014-12-04 | 株式会社小松製作所 | 作業車両 |
US10550545B2 (en) * | 2014-12-12 | 2020-02-04 | Komatsu Ltd. | Work vehicle |
JP6322151B2 (ja) * | 2015-03-12 | 2018-05-09 | 株式会社Kcm | 作業機械の冷却構造及び作業機械 |
DE102015115633A1 (de) * | 2015-09-16 | 2017-03-16 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Luftleitanordnung |
US10207577B2 (en) | 2015-10-23 | 2019-02-19 | Komatsu Ltd. | Tractor |
WO2018179245A1 (ja) * | 2017-03-30 | 2018-10-04 | 株式会社小松製作所 | 建設機械 |
FR3117414B1 (fr) | 2020-12-11 | 2023-08-25 | Speedinnov | Véhicule terrestre avec trappe technique |
US20230116011A1 (en) * | 2021-10-12 | 2023-04-13 | Caterpillar Inc. | Secondary control system and method for mounting with service orientation |
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- 2012-05-24 WO PCT/JP2012/063250 patent/WO2013018422A1/ja active Application Filing
- 2012-05-24 US US13/700,392 patent/US8657048B2/en not_active Expired - Fee Related
- 2012-05-24 KR KR1020127028973A patent/KR101350254B1/ko not_active IP Right Cessation
- 2012-05-24 DE DE112012000085.4T patent/DE112012000085B4/de not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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DE112012000085B4 (de) | 2016-11-10 |
KR20130040869A (ko) | 2013-04-24 |
US8657048B2 (en) | 2014-02-25 |
CN103025964B (zh) | 2014-07-02 |
KR101350254B1 (ko) | 2014-01-10 |
JP2013028973A (ja) | 2013-02-07 |
JP5228093B2 (ja) | 2013-07-03 |
CN103025964A (zh) | 2013-04-03 |
DE112012000085T5 (de) | 2013-08-08 |
US20130216344A1 (en) | 2013-08-22 |
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