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WO2014088033A1 - Machine de construction - Google Patents

Machine de construction Download PDF

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Publication number
WO2014088033A1
WO2014088033A1 PCT/JP2013/082595 JP2013082595W WO2014088033A1 WO 2014088033 A1 WO2014088033 A1 WO 2014088033A1 JP 2013082595 W JP2013082595 W JP 2013082595W WO 2014088033 A1 WO2014088033 A1 WO 2014088033A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
cover
partition plate
partition
air cleaner
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.)
Ceased
Application number
PCT/JP2013/082595
Other languages
English (en)
Japanese (ja)
Inventor
進也 山中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP2014551123A priority Critical patent/JP6012760B2/ja
Publication of WO2014088033A1 publication Critical patent/WO2014088033A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/02—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
    • 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
    • E02F3/301—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 with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • 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
    • 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
    • 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
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • B60Y2304/01—Minimizing space with more compact designs or arrangements

Definitions

  • the present invention relates to a construction machine such as a hydraulic shovel, a wheel loader and the like, and more particularly to a construction machine provided with an air cleaner for cleaning air supplied to an engine.
  • a hydraulic shovel which is a typical example of a construction machine, is provided so as to be capable of raising and lowering on the front side of the upper revolving structure, a lower traveling unit capable of self-propelled movement, an upper revolving unit rotatably mounted on the lower traveling unit, And a work device.
  • the upper swing structure includes a swing frame forming a support structure, a cab provided on the front side of the swing frame, a counterweight provided on the rear side of the swing frame, and left and right directions on the front side of the counterweight
  • a heat exchanger disposed on one side to the left and right of the engine, an air cleaner for cleaning air supplied to the engine, an engine, a heat exchanger, etc. It consists of a building cover that covers the equipment mounted on the
  • the air cleaner includes a filter element and a cylinder having an opening for inserting and removing the filter element, and the air cleaner is attached to the tip end side of an intake pipe that supplies air to the engine.
  • the dust mixed in the air supplied to the engine is captured by the filter element of the air cleaner, and the air cleaner can supply only the clean air to the engine.
  • the air cleaner is disposed such that the axial center line of the cylinder extends in the horizontal or vertical direction. Therefore, the filter element can be inserted and removed in the horizontal direction or the vertical direction through the opening of the cylinder (see, for example, Patent Documents 1 and 2).
  • the hydraulic shovel is provided with the utility room which accommodates an air cleaner etc. behind the cab, and the heat exchanger room which accommodates a heat exchanger.
  • the utility room and the heat exchanger room are provided adjacent to each other in the front and rear directions, and a partition cover is provided between them.
  • the partition cover defines a utility room and a heat exchanger room.
  • the present invention has been made in view of the problems of the prior art described above, and it is an object of the present invention to provide a construction machine capable of securing a space for accommodating an air cleaner even when the space of the utility room is reduced. .
  • a frame as a supporting structure comprising a center frame and left and right side frames, a cab provided on the front side of the frame, a counterweight provided on the rear side of the frame, and An engine disposed in a laterally extending state extending leftward and rightward in front of the counterweight, and a vertically disposed state extending forward and backward located on one side in the leftward and rightward directions of the engine to cool the fluid Heat exchanger, a partition cover positioned on the front end side of the heat exchanger and spaced from the cab, and the heat exchanger formed between the partition cover and the counterweight
  • a heat exchanger room for accommodating in a placed state, a utility room formed between the cab and the partition cover, and air arranged in the utility room and supplied to the engine
  • a feature of the present invention is that the partition cover extends in the left and right directions along the front end surface of the heat exchanger while facing the rear surface of the cab with a gap, and the side frame of the horizontal partition plate And an inclined partition plate extending obliquely backward from the front end toward the heat exchanger chamber, and the air cleaner includes the inclined partition plate for the cylinder so that the opening portion opens obliquely to the rear. It is arranged to be arranged diagonally backward along the slope of.
  • the utility room and the heat exchanger room are separated by the partition cover, the utility room can be expanded to the heat exchanger room side by providing the inclined partition surface on this partition cover. A space sufficient to accommodate the air cleaner in the room can be secured.
  • the air cleaner can be efficiently accommodated in the narrow utility room by arranging the cylinder of the air cleaner obliquely backward along the inclined partition surface so that the opening opens obliquely backward. As a result, as the size of the heat exchanger increases, the space of the heat exchanger room increases, and even if the space of the utility room decreases, the air cleaner can be reliably housed in the utility room.
  • the cylinder of the air cleaner is disposed obliquely backward and obliquely downward along the inclination of the inclined partition plate, and the opening of the cylinder is obliquely rearward and obliquely downward. It is configured to open to the
  • the housing space in the axial direction (front and rear directions) of the cylinder can be reduced as compared with the case where the cylinder of the air cleaner is disposed in the horizontal direction obliquely backward. Therefore, even if the space in front of and behind the utility room is reduced as the heat exchanger room becomes larger, the narrow utility room is efficiently used to impair the maintainability of the air cleaner reliably and It can be accommodated without.
  • the front side of the partition cover is provided with a front partition plate extending in the left and right directions while facing the rear surface of the cab with a space
  • the utility chamber comprises the front partition plate and the partition cover. It is set as the structure formed between. According to this configuration, the front and back of the utility room can be partitioned by the front partition plate and the partition cover.
  • the tip of the inclined partition plate on the side of the side frame side is provided with an extended horizontal partition plate extending in the left and right directions in parallel with the horizontal partition plate.
  • the extended horizontal partition plate is provided with a notch through which the filter element passes when the filter element of the air cleaner is inserted and removed through the opening of the cylinder, and the extended horizontal partition plate includes A lid for closing the notched portion is detachably provided.
  • the filter element when the filter element is inserted into and removed from the cylinder of the air cleaner, the filter element is disposed along the inclined partition plate by passing through the notch provided in the extended lateral partition plate. It can move on the axial center line of the cylinder. As a result, the filter element can be easily inserted and removed along the axial center line of the cylinder of the air cleaner, which can enhance the workability of the maintenance operation for the air cleaner.
  • the building cover covers the mounting equipment, the heat exchanger room and the utility room from above, an upper surface cover having a working opening formed at a portion corresponding to the engine, and a work of the upper surface cover
  • the filter element of the air cleaner being the side door With the cover opened, the air cleaner can be inserted into and removed from the cylinder of the air cleaner through the notch of the partition cover.
  • the partition cover can be opened to the outside together with the utility room and the heat exchanger room. Therefore, when replacing the filter element of the air cleaner, the filter element is attached to the cylinder of the air cleaner by removing the lid that closes the notch of the partition cover within the large working space outside the upper swing body. It can be easily inserted and removed.
  • the tip of the extended horizontal partition plate that constitutes the partition cover is configured to extend to a position facing the inner surface of the side door cover with a slight gap when the side door cover is closed. According to this configuration, by closing the side door cover, the heat exchange chamber and the utility chamber can be reliably divided by the partition cover.
  • FIG. 6 is a plan view showing a swing frame, a counterweight, an engine, a heat exchanger, a partition cover, an air cleaner, and the like of the hydraulic shovel.
  • FIG. 5 is a front view of a swing frame, a heat exchanger, a partition cover, an air cleaner and the like as viewed in the direction of arrows IV-IV in FIG. 3; It is a perspective view which shows a partition cover alone. It is an exploded perspective view showing a partition cover and a lid.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • FIG. 5 shows the modification of the partition cover used for this Embodiment.
  • the wheeled hydraulic excavator 1 denotes a wheeled hydraulic shovel that is a typical example of a construction machine.
  • the wheeled hydraulic excavator 1 includes a wheeled lower traveling body 2 having left and right front wheels 2A and left and right rear wheels 2B, and an upper revolving structure 3 rotatably mounted on the lower traveling body 2. And consists of.
  • the lower traveling body 2 and the upper revolving superstructure 3 constitute a vehicle body of the hydraulic shovel 1.
  • the upper swing body 3 has a swing frame 4 which forms a strong support structure.
  • the pivot frame 4 is disposed at the center in the left and right directions and extends in the front and rear directions
  • the center frame 5 is disposed on the left side of the center frame 5 and extends in the front and back directions.
  • a left side frame 6 extending, a plurality of left overhanging beams 7 having a left side frame 6 attached to the end projecting leftward from the center frame 5, and a right side frame disposed on the right of the center frame 5 and extending forward and backward 8 and a plurality of right overhanging beams 9 to which a right side frame 8 is attached at the tip of an overhanging right from the center frame 5.
  • the center frame 5 is a flat plate-like bottom plate 5A formed of a thick steel plate, and is erected on the bottom plate 5A and extends forward and backward while facing at a constant distance in the left and right directions.
  • a left vertical plate 5B and a right vertical plate 5C are provided.
  • a boom foot portion of a lower boom 12A which will be described later, is attached rotatably (upwardly) in the upper and lower directions.
  • counter weights 14 described later are attached to the rear ends of the left and right vertical plates 5B and 5C.
  • engine mounting brackets 10 are provided on the front and rear middle portions to the rear side of the left and right vertical plates 5B and 5C.
  • the engine mounting brackets 10 face each other at intervals in the front and rear directions as a pair, and an engine 15 described later is mounted.
  • a heat exchanger support bracket 11 extending in the front and rear directions is provided.
  • the heat exchanger support bracket 11 is adjacent to the left side of the engine mounting bracket 10, to which a heat exchanger 19 described later is attached.
  • the heat exchanger support bracket 11 is provided between the two left overhanging beams 7 located on the counterweight 14 side.
  • the work device 12 is provided on the front side of the upper revolving superstructure 3 and is for excavating earth and sand.
  • the working device 12 includes the lower boom 12A having its base end attached to the left and right vertical plates 5B and 5C constituting the swing frame 4, the upper boom 12B attached to the tip of the lower boom 12A, and the upper boom 12B.
  • the cab 13 is provided on the front left side of the turning frame 4 and defines an operator's cab on which the operator rides.
  • a driver's seat on which the operator is seated a steering wheel for steering the front wheel 2A of the lower traveling body 2, a turning operation of the upper swing body 3, and an operation device for operating the work device 12 Not shown).
  • the counterweight 14 is mounted on the rear side of the swing frame 4 to balance the weight with the working device 12.
  • the wheeled hydraulic excavator 1 travels on a public road, it is desirable to make the turning radius of the upper swing body 3 as small as possible. For this reason, the counterweight 14 is disposed at a position close to the turning center of the upper swing body 3.
  • the engine 15 is mounted on the rear side of the swing frame 4 while being located on the front side of the counterweight 14.
  • the engine 15 is attached to the engine mounting bracket 10 of the revolving frame 4 in a horizontal position where the axis of a crankshaft (not shown) extends in the left and right directions.
  • the base end of the intake pipe 16 is connected to the intake side of the engine 15, and an air cleaner 35 described later is attached to the tip of the intake pipe 16.
  • a suction type cooling fan 17 is provided on one side (left side) in the left and right directions of the engine 15.
  • the cooling fan 17 is driven by the engine 15 to suck outside air, and supplies the outside air as a cooling air to a heat exchanger 19 described later.
  • a hydraulic pump 18 driven by the engine 15 is provided on the other side (right side) in the left and right directions of the engine 15.
  • the hydraulic pump 18 discharges operating pressure oil toward various hydraulic devices mounted on the wheeled hydraulic excavator 1.
  • the reference numeral 19 denotes a heat exchanger disposed on one side (left side) in the left and right directions of the engine 15 with the cooling fan 17 interposed therebetween.
  • the heat exchanger 19 is used as a radiator for cooling engine cooling water, an oil cooler for cooling hydraulic oil, an intercooler for cooling intake air supplied from a turbocharger of the engine 15, a fuel cooler for cooling fuel, and an air conditioner It is comprised as a single unit which put together the condenser etc. which cool the refrigerant which is made.
  • the heat exchanger 19 is configured as a frame-like body disposed in a vertically placed state extending in the front and rear directions. Furthermore, the heat exchanger 19 is located on the front side 19A located on the upstream side in the flow direction of the cooling air by the cooling fan 17, the back face 19B located on the downstream side, and the partition cover 21 described later And a rear end face 19D located on the rear side in the front and rear directions and facing the counterweight 14.
  • the heat exchanger 19 is attached to the heat exchanger support bracket 11 of the revolving frame 4, the rear face 19B faces the cooling fan 17 of the engine 15 in the left and right directions, and the front face 19A is a heat exchanger room 26 described later. It has become part of the space.
  • the front partition plate 20 is provided on the rear side of the cab 13, and the front partition plate 20 is formed as a rectangular plate as a whole.
  • the front partition plate 20 is attached to the swing frame 4 in a state of facing the rear surface 13A of the cab 13 with a slight gap in the front and rear directions, and partitions the front side of a utility chamber 27 described later.
  • a front end side of a left side door cover 33 described later is supported so as to be openable and closable via a hinge mechanism (not shown).
  • Reference numeral 21 denotes a partition cover disposed at a distance behind the front partition plate 20.
  • the partition cover 21 partitions the space between the heat exchanger chamber 26 and the utility chamber 27 which will be described later, and forms the utility chamber 27 between the front partition plate 20 and the partition chamber 21.
  • the partition cover 21 is formed by bending a steel plate material or the like, and is formed of a horizontal partition plate 22, an inclined partition plate 23, and an extended horizontal partition plate 24 described later. It is composed of
  • Reference numeral 22 denotes a horizontal partition plate disposed along the front end face 19C of the heat exchanger 19.
  • the horizontal partition plate 22 is disposed close to the front end face 19 C of the heat exchanger 19 while facing the front partition plate 20 at a distance, and extends in the left direction toward the left side frame 6.
  • the lower side of the horizontal partition plate 22 is a mounting substrate 22A extending in the left and right directions.
  • the partition cover 21 is erected on the swing frame 4 by attaching the mounting substrate 22 A to the left overhanging beam 7 of the swing frame 4.
  • the right side of the horizontal partition plate 22 (on the side of the engine 15 or the engine room partition cover 28 described later) is a rectangular heat exchanger mounting plate 22B extending upward and downward, and heat exchange is performed on the heat exchanger mounting plate 22B.
  • the front end face 19C of the vessel 19 is attached.
  • Reference numeral 23 denotes an inclined partition plate provided continuously with the horizontal partition plate 22.
  • the inclined partition plate 23 is a heat exchanger chamber described later from the tip (left end) located on the left side frame 6 side of the horizontal partition plate 22. It extends obliquely backward toward 26.
  • the inclined partition plate 23 is formed by bending the tip end side of the heat exchanger mounting plate 22B of the horizontal partition plate 22 toward the heat exchanger chamber 26 obliquely backward, and extends in the left and right directions. It is inclined diagonally backward with respect to.
  • a part of the utility chamber 27 described later can be expanded to the heat exchanger chamber 26 side.
  • the cylinder body 36 of the air cleaner 35 is attached to the inclined partition plate 23 through a cleaner attachment bracket 38 described later.
  • the inclined partition plate 23 is provided with a filter guide 23A at a lower end portion on the left side frame 6 side.
  • the filter guide 23 ⁇ / b> A protrudes leftward from the lower end of the inclined partition plate 23 and extends almost to the upper side of the left side frame 6.
  • the filter guide 23A guides the filter element 37 when inserting and removing the filter element 37 with respect to the cylindrical body 36 of the air cleaner 35.
  • a building cover support bracket 23B is provided at the upper end of the inclined partition plate 23, .
  • the building cover support bracket 23B is bent in the horizontal direction from the upper end of the inclined partition plate 23, and supports a part of a building cover 30 described later.
  • Reference numeral 24 denotes an extended horizontal partition plate provided continuously with the inclined partition plate 23.
  • the extended horizontal partition plate 24 extends from the front end (left end) of the inclined partition plate 23 to the left side frame 6 side.
  • the extended horizontal partition plate 24 is formed by bending the tip end side of the inclined partition plate 23 toward the left side frame 6 to the left side, and in parallel with the horizontal partition plate 22 toward the left side door cover 33 described later It extends to the left.
  • the end 24A of the extended horizontal partition plate 24 faces the inner surface of the left side door cover 33 with a slight gap when the left side door cover 33 is closed, and a notch 24B described later is provided.
  • the notch 24B is formed by notching the tip 24A of the extended horizontal partition plate 24 on the side of the inclined partition plate 23 from the middle portion in the upper and lower direction to the lower end portion.
  • Two stud bolts 24C are provided on the extended horizontal partition plate 24 so as to project rearward, located around the notch 24B. The stud bolts 24C are to be attached with a lid 25 described later. is there.
  • the lid 25 is detachably attached to the extended horizontal partition plate 24, and the lid 25 uses a wing nut 25A to a stud bolt 24C provided to project from the extended horizontal partition plate 24. It is detachably attached and closes the notch 24B.
  • the lid 25 closes the notch 24B of the extended horizontal partition plate 24 so that air can pass through the notch 24B between the heat exchanger chamber 26 and the utility chamber 27 adjacent to each other via the partition cover 21. I will stop flowing.
  • the reference numeral 26 denotes a heat exchanger chamber formed between the partition cover 21 and the counterweight 14, and the heat exchanger chamber 26 accommodates the heat exchanger 19 in a vertically extending state extending in the front and rear directions. is there.
  • the heat exchanger chamber 26 is partitioned on the front side by the partition cover 21, the rear side is partitioned by the counterweight 14, the right side is partitioned by the back surface 19 B of the heat exchanger 19, and the left side is a left side door cover 33 described later. It is divided by
  • the upper side of the heat exchanger chamber 26 is covered by an upper surface cover 31 described later, and the lower side of the heat exchanger chamber 26 is closed by an under cover (not shown) attached to the swing frame 4.
  • Reference numeral 27 denotes a utility room formed between the front partition plate 20 and the partition cover 21.
  • the utility room 27 is disposed adjacent to the front side of the heat exchanger room 26 with the partition cover 21 interposed therebetween, and accommodates an air cleaner 35 described later.
  • the front side of the utility room 27 is partitioned by the front partition plate 20, the rear side is partitioned by the partition cover 21, and the left side is partitioned by a left side door cover 33 described later.
  • the upper side of the utility chamber 27 is covered by an upper surface cover 31 described later, and the lower side of the utility chamber 27 is closed by an under cover (not shown) attached to the swing frame 4.
  • the heat exchanger chamber 26 and the utility chamber 27 are disposed adjacent to each other in front of and behind the partition cover 21.
  • the partition cover 21 is provided with an inclined partition plate 23 extending obliquely backward from the end of the horizontal partition plate 22 on the left side frame 6 side toward the heat exchanger chamber 26. Therefore, the inclined partition plate 23 of the partition cover 21 enters the heat exchanger chamber 26 from the utility chamber 27. Accordingly, the space of the utility chamber 27 is expanded by the amount of the inclined partition plate 23 entering the heat exchanger chamber 26, and a space for accommodating the air cleaner 35 described later is secured.
  • an extended horizontal partition plate 24 extending in the left direction in parallel with the horizontal partition plate 22 is provided at the tip of the inclined partition plate 23.
  • the inclined partition plate 23 can be prevented from entering the heat exchanger chamber 26 more than necessary, and the cooling fan 17 can supply sufficient cooling air into the heat exchanger chamber 26.
  • the engine compartment partition cover 28 is located on the front side of the engine 15 and erected on the swing frame 4, and the engine compartment partition cover 28 faces the engine 15 in the right direction from the horizontal partition plate 22 of the partition cover 21. It extends continuously to Here, the engine compartment partition cover 28 defines an engine compartment 29 that accommodates the engine 15 with the counterweight 14.
  • the engine compartment partition cover 28 shields the air (cooling air) whose temperature has risen by passing through the heat exchanger 19 from entering the engine compartment 29 into the utility compartment 27.
  • the utility chamber 27 can suppress the temperature rise of the air, and can prevent the temperature-increased air from being introduced into the heat exchanger chamber 26 adjacent to the utility chamber 27.
  • the building cover 30 is disposed between the counterweight 14 and the cab 13, and the building cover 30 covers the mounted equipment including the engine 15, the hydraulic pump 18, the heat exchanger 19 and an air cleaner 35 described later, as well as heat exchange. It closes the compartment 26, the utility compartment 27, and the engine compartment 29.
  • the building cover 30 includes an upper surface cover 31, an engine cover 32, a left side door cover 33, and a right side door cover 34.
  • the upper surface cover 31 forms substantially the same plane as the upper surface of the counterweight 14 and covers the mounted device including the engine 15, the heat exchanger chamber 26, the utility chamber 27, and the engine chamber 29 from above.
  • a work opening 31A is formed in a portion of the upper surface cover 31 corresponding to the engine 15, and this work opening 31A allows workers to enter and exit when maintenance on the engine 15 is performed.
  • the engine cover 32 is formed in a flat rectangular box shape and covers the work opening 31A of the upper surface cover 31 so as to be openable and closable.
  • the left side door cover 33 is formed of a single plate extending in the front and rear direction between the cab 13 and the counterweight 14.
  • the left side door cover 33 covers the air cleaner 35 and the heat exchanger 19 which will be described later so that they can be opened and closed from the left side, and closes the heat exchanger room 26 and the utility room 27 from the left side.
  • the front end portion of the left side door cover 33 is supported at the left end portion of the front partition plate 20 which divides the front side of the utility chamber 27 via a hinge mechanism (not shown). Therefore, as shown in FIG. 7, the left side door cover 33 opens and closes in the front and rear directions with the position of the left end of the front partition plate 20 provided with the hinge mechanism as a fulcrum.
  • the right side door cover 34 is formed of a single plate similar to the left side door cover 33 and covers the engine 15, the hydraulic pump 18 and the like from the right side openably and closably. Occlusion from
  • the top cover 31 and the left side door cover 33 are provided with a vent (not shown) for taking in the outside air toward the heat exchanger 19 by the rotation of the cooling fan 17.
  • the engine cover 32 and the right side door cover 34 are provided with vents (not shown) for discharging the cooling air having passed through the heat exchanger 19 to the outside.
  • Reference numeral 35 denotes a centrifugal separation type air cleaner attached to the intake side of the engine 15 via the intake pipe 16.
  • the air cleaner 35 cleans the air by separating dust in the air supplied to the engine 15 through the intake pipe 16.
  • the air cleaner 35 comprises a cylindrical cylindrical body 36 connected to the end of the intake pipe 16 extending from the intake side of the engine 15, and a filter element 37 housed in the cylindrical body 36 and capturing dust in the air. It is composed of One end side of the cylindrical body 36 in the axial direction is an opening 36A, and the filter element 37 is pulled out and pulled out of the cylindrical body 36 through the opening 36A.
  • an air inlet 36B into which the air supplied to the engine 15 flows is protruded upward.
  • the air cleaner 35 is accommodated in the utility chamber 27, and the cylinder 36 of the air cleaner 35 is directed obliquely backward along the inclination of the inclined partition plate 23 of the partition cover 21 and obliquely It is arranged downward.
  • the air cleaner 35 is attached by the air cleaner mounting bracket 38 attached to the partition cover 21 in a state of being positioned with respect to the partition cover 21.
  • the opening 36A of the cylindrical body 36 opens obliquely backward and obliquely downward.
  • the axial center line AA of the cylindrical body 36 is viewed from above by aligning the axial center line AA of the cylindrical body 36 with the inclination of the inclined partition plate 23. It extends obliquely backward by an angle ⁇ with respect to a straight line BB extending in the left and right directions.
  • the axial center line AA of the cylindrical body 36 extends obliquely downward by an angle ⁇ with respect to a straight line CC extending in the front and back directions (horizontal direction) when viewed from the left side .
  • the cylinder 36 of the air cleaner 35 is disposed along the inclined partition plate 23 provided on the partition cover 21 that divides the heat exchanger chamber 26 and the utility chamber 27, and the opening 36 A of the cylinder 36 is Opening obliquely backward and obliquely downward.
  • the filter element 37 can move on the axial center line AA of the cylinder 36 arranged along the inclined partition plate 23.
  • the filter element 37 can be easily inserted into and removed from the cylindrical body 36.
  • the housing space in the axial direction (front and rear directions) of the cylindrical body 36 is reduced as compared with the case where the cylindrical body 36 is extended and arranged in the horizontal direction. Can.
  • the wheeled hydraulic excavator 1 has the above-mentioned configuration, and the wheeled hydraulic excavator 1 travels the road by the lower traveling body 2 and works while turning the upper swing body 3 at the work site
  • the equipment 12 is used to dig earth and sand.
  • the engine 15 when the engine 15 operates, the outside air is sucked into the heat exchanger chamber 26 by the rotation of the cooling fan 17, and the outside air is supplied to the heat exchanger 19 as cooling air.
  • the engine coolant which is the fluid to be cooled, the hydraulic oil, the intake air from the turbocharger, the fuel, and the refrigerant used in the air conditioner.
  • air supplied to the engine 15 is led to the intake pipe 16 through the air cleaner 35 and then supplied to the intake side of the engine 15. At this time, since the dust mixed in the air is separated by the air cleaner 35, only the cleaned air can be supplied to the engine 15.
  • the air cleaner 35 is accommodated in the utility chamber 27 partitioned from the heat exchanger chamber 26 by the partition cover 21. Therefore, the flow of the outside air introduced into the heat exchanger chamber 26 by the rotation of the cooling fan 17 is not hindered by the air cleaner 35. As a result, a large amount of cooling air is supplied to the heat exchanger 19, and the cooling efficiency of the heat exchanger 19 can be enhanced.
  • the air cleaner 35 is disposed in the utility chamber 27. Thereby, the air cleaner 35 can be prevented from being exposed to a large amount of the outside air introduced into the heat exchanger chamber 26 by the cooling fan 17. As a result, it is possible to suppress early clogging of the filter element 37 of the air cleaner 35 and extend the replacement time of the filter element 37.
  • the left side door cover 33 is opened in a state where the engine 15 is stopped.
  • the heat exchanger chamber 26 and the utility chamber 27 are opened to the outside, and the partition cover 21 and the air cleaner 35 appear to the outside.
  • the lid 25 is removed from the extended horizontal partition plate 24 of the partition cover 21. That is, the wing nut 25A is removed from the stud bolt 24C protruding from the extended horizontal partition plate 24, and the lid 25 is removed from the stud bolt 24C. Thereby, the notch part 24B formed in the extended horizontal partition plate 24 appears outside.
  • the dirty filter element 37 is pulled out from the cylindrical body 36 of the air cleaner 35 in the arrow P direction. .
  • the filter element 37 passes through the notch 24B formed in the extended horizontal partition plate 24 so that the axial center line A- of the cylindrical body 36 disposed along the inclined partition plate 23 of the partition cover 21. You can move on A.
  • the filter element 37 extracted from the cylindrical body 36 is guided obliquely downward by the filter guide 23A provided on the inclined partition plate 23 of the partition cover 21. As a result, the soiled filter element 37 is easily extracted along the axial center line AA of the cylindrical body 36.
  • the partition cover 21 that divides the heat exchanger chamber 26 and the utility chamber 27 is a horizontal partition plate 22 extending in the left and right directions along the front end face 19C of the heat exchanger 19;
  • An inclined partition plate 23 extending obliquely from the end on the left side frame 6 side of the horizontal partition plate 22 to the heat exchanger chamber 26 is provided.
  • the space of the utility chamber 27 is expanded to the heat exchanger chamber 26 side by the amount of the inclined partition plate 23. can do. As a result, it is possible to secure a space for accommodating the air cleaner 35 in the utility chamber 27.
  • the air cleaner 35 is disposed obliquely backward with the axial center line AA of the cylindrical body 36 along the inclination of the inclined partition plate 23.
  • the air cleaner 35 can be efficiently accommodated in the narrow utility chamber 27. Therefore, even if the space of the heat exchanger room 26 increases with the upsizing of the heat exchanger 19 and the space of the utility room 27 decreases, the air cleaner 35 can be reliably accommodated in the utility room 27. .
  • the inclined partition plate 23 Since the extended horizontal partition plate 24 extending in the left and right directions in parallel with the horizontal partition plate 22 is provided at the tip of the inclined partition plate 23, the inclined partition plate 23 enters the heat exchanger chamber 26 more than necessary. Can be reduced. As a result, the inclined partition plate 23 of the partition cover 21 is prevented from obstructing the cooling air supplied to the heat exchanger 19 through the heat exchanger chamber 26, and sufficient cooling for the heat exchanger 19 is achieved. Since the wind can be supplied, the cooling efficiency of the heat exchanger 19 can be maintained properly.
  • the extended horizontal partition plate 24 is provided with a recessed notch 24B from the upper and lower middle portions to the lower end. For this reason, when the filter element 37 is inserted into and removed from the cylindrical body 36, the filter element 37 passes obliquely through the notch portion 24B so that the axial center line AA of the cylindrical body 36 is obliquely downward (FIG. 9). In the direction of the arrow P). As a result, since the filter element 37 can be easily inserted and removed from the cylindrical body 36, the workability of the maintenance operation for the air cleaner 35 can be enhanced.
  • the partition cover 21 is configured to be detachably provided with a lid 25 for closing the notch 24B.
  • a lid 25 for closing the notch 24B.
  • the cylindrical body 36 of the air cleaner 35 is disposed obliquely backward and obliquely downward along the inclined partition plate 23 of the partition cover 21. Therefore, as compared with the case where the cylindrical body 36 is disposed to extend in the horizontal direction, the accommodation space in the axial direction of the cylindrical body 36 can be reduced. As a result, even when the space in front of and behind the utility chamber 27 is reduced as the heat exchanger chamber 26 is enlarged, the narrow utility chamber 27 is efficiently used to ensure the air cleaner 35, And it can be accommodated without impairing the maintainability.
  • the partition cover 21 is configured by the horizontal partition plate 22, the inclined partition plate 23, and the extended horizontal partition plate 24, and the filter element 37 of the air cleaner 35 passes through the extended horizontal partition plate 24.
  • the configuration in which the notched portion 24B is provided is illustrated.
  • the present invention is not limited to this, and may be configured as a partition cover 41 according to the modification shown in FIG. 10, for example.
  • the partition cover 41 is composed of a horizontal partition plate 42 extending in the left and right directions, and an inclined partition plate 43 extending obliquely backward from the tip of the horizontal partition plate 42.
  • the lower side of the horizontal partition plate 42 is a mounting substrate 22A
  • the right side of the horizontal partition plate 42 is a heat exchanger mounting plate 22B.
  • a filter guide 43A is provided at the lower end of the inclined partition plate 43
  • a building cover support bracket 43B is provided at the upper end of the inclined partition plate 43.
  • the tip end 43C of the inclined partition plate 43 extends to a position facing the inner surface of the left side door cover 33 when the left side door cover 33 is closed.
  • the space between the tip 43C of the inclined partition plate 43 and the inner surface of the left side door cover 33 can be closed, and the space between the heat exchanger chamber 26 and the utility chamber 27 Can be reliably divided by the partition cover 41.
  • the wheel type hydraulic shovel 1 provided with the wheel type lower traveling body 2 is illustrated as a construction machine.
  • the present invention is not limited to this.
  • the present invention may be applied to a crawler type hydraulic shovel 51 provided with a crawler type lower traveling body 52.
  • the present invention can be widely applied to other construction machines such as hydraulic cranes and wheel loaders as well as hydraulic shovels.

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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)

Abstract

Selon l'invention, un capot de séparation (21) est disposé sur le côté de la surface d'extrémité avant (19C) d'un échangeur de chaleur (19), un espace étant prévu entre le capot de séparation (21) et une cabine (13). Une chambre d'échangeur de chaleur (26) servant à loger l'échangeur de chaleur (19) est formée entre un contrepoids (14) et le capot de séparation (21) et une chambre utilitaire (27) servant à loger un filtre à air (35) est formée entre la cabine (13) et le capot de séparation (21). Le capot de séparation (21) est conçu de manière à inclure : une plaque de séparation latérale (22) qui se trouve en regard de la surface arrière (13A) de la cabine (13) et qui s'étend dans la direction gauche-droite le long de la surface d'extrémité avant (19C) de l'échangeur de chaleur (19); et une plaque de séparation inclinée (23) qui est inclinée obliquement vers l'arrière à partir de l'extrémité avant de la plaque de séparation latérale (22), l'extrémité avant se trouvant en regard du châssis du côté gauche (6) vers la chambre d'échangeur de chaleur (26). Le corps cylindrique (36) du filtre à air (35) est disposé obliquement vers l'arrière le long de la plaque de séparation inclinée (23) de telle manière que l'ouverture (36A) du corps cylindrique s'ouvre obliquement vers l'arrière, l'ouverture (36A) permettant à un élément de filtre (37) d'être inséré dans celle-ci et extrait à partir de celle-ci.
PCT/JP2013/082595 2012-12-05 2013-12-04 Machine de construction Ceased WO2014088033A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014551123A JP6012760B2 (ja) 2012-12-05 2013-12-04 建設機械

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-266610 2012-12-05
JP2012266610 2012-12-05

Publications (1)

Publication Number Publication Date
WO2014088033A1 true WO2014088033A1 (fr) 2014-06-12

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PCT/JP2013/082595 Ceased WO2014088033A1 (fr) 2012-12-05 2013-12-04 Machine de construction

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JP (1) JP6012760B2 (fr)
WO (1) WO2014088033A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160032562A1 (en) * 2013-08-08 2016-02-04 Komatsu Ltd. Wheel loader
CN108138462A (zh) * 2016-01-20 2018-06-08 株式会社日立建机Tierra 小型建筑机械
US10150360B2 (en) * 2015-03-12 2018-12-11 Kcm Corporation Cooling structure of operating machine and operating machine
CN110312835A (zh) * 2018-01-24 2019-10-08 株式会社小松制作所 旋转机架及建筑机械
EP4249688A1 (fr) * 2022-03-25 2023-09-27 Yanmar Holdings Co., Ltd. Engin de chantier

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000064349A (ja) * 1998-08-20 2000-02-29 Hitachi Constr Mach Co Ltd 建設機械
JP2003011679A (ja) * 2001-06-27 2003-01-15 Shin Caterpillar Mitsubishi Ltd 建設機械の冷却装置
JP2009074243A (ja) * 2007-09-18 2009-04-09 Hitachi Constr Mach Co Ltd 建設機械

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4023939B2 (ja) * 1999-01-20 2007-12-19 日立建機株式会社 建設機械のエンジン吸気装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000064349A (ja) * 1998-08-20 2000-02-29 Hitachi Constr Mach Co Ltd 建設機械
JP2003011679A (ja) * 2001-06-27 2003-01-15 Shin Caterpillar Mitsubishi Ltd 建設機械の冷却装置
JP2009074243A (ja) * 2007-09-18 2009-04-09 Hitachi Constr Mach Co Ltd 建設機械

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160032562A1 (en) * 2013-08-08 2016-02-04 Komatsu Ltd. Wheel loader
US10150360B2 (en) * 2015-03-12 2018-12-11 Kcm Corporation Cooling structure of operating machine and operating machine
CN108138462A (zh) * 2016-01-20 2018-06-08 株式会社日立建机Tierra 小型建筑机械
CN108138462B (zh) * 2016-01-20 2020-07-14 株式会社日立建机Tierra 小型建筑机械
CN110312835A (zh) * 2018-01-24 2019-10-08 株式会社小松制作所 旋转机架及建筑机械
CN110312835B (zh) * 2018-01-24 2022-07-29 株式会社小松制作所 旋转机架及建筑机械
EP4249688A1 (fr) * 2022-03-25 2023-09-27 Yanmar Holdings Co., Ltd. Engin de chantier
JP2023143527A (ja) * 2022-03-25 2023-10-06 ヤンマーホールディングス株式会社 建設機械

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