JP4266666B2 - Construction machinery - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a construction machine such as a hydraulic excavator, and more particularly to a battery mounting device and a construction machine for a construction machine that houses a battery for supplying an engine starting current and the like.
[0002]
[Prior art]
A hydraulic excavator, which is one of construction machines, has various operating masses. For example, a large hydraulic excavator having a relatively large operating mass of about several hundred tons has a large bucket capacity and load, and therefore has, for example, two engines. Conventionally, as an example of arrangement of various devices in the revolving structure of such a large hydraulic excavator, for example, there is one described in Patent Document 1. This prior art has left (first) and right (second) buildings each having an engine disposed on the rear side, and a hydraulic oil tank and a fuel tank are disposed between the left and right buildings, A control valve device is disposed in front of the hydraulic oil tank and the fuel tank, and an oil cooler and a cooling fan for the oil cooler are disposed in the front side (third building) of the right building. A hydraulic pump or the like is disposed on the front side, and a plurality of large-capacity batteries are disposed on the upper side. When the battery is installed / replaced, the battery is lifted by using a machine such as a crane, for example, with the lid provided at the upper part of the left building opened.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 11-1000086
[0004]
[Problems to be solved by the invention]
However, the prior art has the following problems.
That is, in the above prior art, the battery is arranged on the front side of the left building where the hydraulic pump or the like is arranged, and the rear side of the left building where the engine or the like generating high heat is arranged is separated from the rear side by the partition wall. It has a structure. However, for example, heat generated by the control valve device and the high-pressure pipe connected thereto is carried by the airflow generated by driving the cooling fan for the oil cooler disposed on the front side of the right building, and the front side of the left building is warmed. There is a case. In such a case, normally, due to cost or space problems, a cooling device for cooling the battery is not installed on the front side of the left building, so the battery liquid boils as the ambient temperature rises. The battery may fail.
[0005]
The present invention has been made in view of the above matters, and an object of the present invention is to provide a battery mounting device for a construction machine and a construction machine that can reduce the influence of heat from the surroundings and improve the life of the battery. It is in.
[0019]
[Means for Solving the Problems]
(1) In order to achieve the above object, the present invention provides a traveling body, a revolving body provided on the traveling body so as to be capable of turning, a front device provided on the revolving body so as to be able to be lifted and lowered, and the revolving body. A cab that is disposed to form a cab, a building that is disposed on the swivel body and accommodates equipment including an engine, and is disposed outside the cab and the side of the building, and is accessible from the side. In a construction machine comprising a passage provided at a height and a plurality of batteries for supplying a starting current to the engine, Arranged and composed of a bottom plate, a bottom frame provided on the bottom plate for mounting the plurality of batteries, a side plate, and an upper plate formed with an opening, and the battery is clamped and fixed between the bottom frame Having a fixture to The plurality of batteries are stored from the upper opening. And with removable And a lid member that also serves as a passage floor and is attached to an upper opening of the battery storage portion via a hinge so as to be openable and closable.
( 2 ) Above (1 ) Preferably, a locking tool that can be locked with the lid member opened is provided on the side wall of the building.
[0020]
( 3 In order to achieve the above object, the present invention also provides a traveling body, a revolving body provided on the traveling body so as to be capable of turning, a front device provided on the revolving body so as to be able to be lifted and lowered, and a left side of the revolving body. A cab disposed in a front region and forming a cab; a left building disposed in a left rear region of the revolving unit; a right building disposed in a right region of the revolving unit; the left building and the Two engines respectively arranged in the rear area of the right building, an oil cooler and an oil cooler cooling fan arranged in the front area of the right building, and hydraulic oil arranged between the left building and the right building A tank and a fuel tank, a control valve device disposed in front of the hydraulic oil tank and the fuel tank, a plurality of batteries for supplying a starting current to the engine, the cab, the left building, and The left side building and the right side building are provided with a passage provided at a height accessible from the side to the left side building and the right side building. In a construction machine having a passage, a right passage provided at a right edge of the swivel body, and a central passage provided between the left building and the right building, located on a rear side of the cab in the left passage. Territory Regional Down Arranged and composed of a bottom plate, a bottom frame provided on the bottom plate for mounting the plurality of batteries, a side plate, and an upper plate formed with an opening, and the battery is clamped and fixed between the bottom frame Having a fixture to The plurality of batteries are stored from the upper opening. And with removable And a lid member that also serves as a passage floor and is attached to an upper opening of the battery storage portion via a hinge so as to be openable and closable.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing the entire structure of a large hydraulic excavator as an example of a construction machine to which the present invention is applied. Hereinafter, when the operator is seated in the driver's seat with the excavator shown in FIG. 1, the front side (left side in FIG. 1), rear side (right side in FIG. 1), left side (paper surface in FIG. 1). The front side) and the right side (back side toward the paper surface in FIG. 1) are simply referred to as front side, rear side, left side, and right side.
[0022]
In FIG. 1, 1 is a large hydraulic excavator, 2 is an endless track crawler (crawler) that is a traveling means, 3 is a travel body provided with the endless track crawler 2 on both left and right sides, and 4 is a travel body. 3 is a revolving frame that is pivotably mounted on the upper part of 3, 5 is a revolving frame that forms the basic lower structure of the revolving body 4, and 6 is pivotable in the vertical direction on the front part of the revolving frame 5 (can be moved up and down). A multi-joint type front device, 7 is a driver's cab disposed on the left front portion of the turning frame 5, 8 is a control panel (not shown), etc. A driver's cab bed, 9 is a machine room which is disposed on the swivel frame 5 and houses various devices (details will be described later), 10 is a passage provided on the swivel frame 5 and through which an operator and an operator can pass, 11 is attached to the rear part on the revolving frame 5 A counter weight, the counterweight 11 is adapted to take a weight balance between the front device 6.
[0023]
12 is a substantially H-shaped track frame, 13 is a drive wheel rotatably supported near the rear ends of the left and right sides of the track frame 12, and 14 is a traveling hydraulic motor for driving the drive wheel 13. . Reference numeral 15 denotes a driven wheel (idler) rotatably supported near the left and right front ends of the track frame 12. The driven wheel 15 is rotated by the driving force of the driving wheel 13 through the endless track crawler belt 2. Is done. The traveling body 3 includes the track frame 12, left and right drive wheels 13 and 13, left and right traveling hydraulic motors 14 and 14, and left and right driven wheels 15 and 15. Reference numeral 16 denotes a turning wheel (swivel base bearing) disposed substantially at the center of the traveling body 3, and 17 denotes a plurality of turning hydraulic motors (see FIG. 2 described later) built in the vicinity of the center of the turning wheel 16. is there. Thereby, the turning frame 5 can turn with respect to the traveling body 3.
[0024]
Reference numeral 18 denotes a boom whose base end portion is rotatably connected to the revolving frame 5, 19 is an arm rotatably connected to the distal end portion of the boom 18, and 20 is rotatably connected to the distal end of the arm 19. The front device 6 includes a boom 18, an arm 19, and a bucket 20. The boom 18, the arm 19, and the bucket 20 are operated by a boom hydraulic cylinder 21, an arm hydraulic cylinder 22, and a bucket hydraulic cylinder 23, respectively.
[0025]
FIG. 2 is a plan view of the revolving body 4 showing the arrangement of various devices in the machine room 9, and FIG. 3 is a partially enlarged plan view of a portion A in FIG. In FIG. 2, for convenience, the front device 6 and the upper part of the machine room 9 are not shown.
[0026]
2 and 3, reference numeral 24 denotes a building disposed on the left side (lower side in FIG. 2), and reference numeral 25 denotes a building disposed on the right side (upper side in FIG. 2). The machine room 9 is composed of the left side building 24 and the right side building 25.
[0027]
Reference numeral 26 denotes an engine (prime mover) disposed in the front-rear direction in a region on the rear side (right side in FIG. 2) of the left building 24 and the right building 25, 27 denotes a radiator disposed on the rear side of the engine 26, and 28 denotes the engine 26. The radiator cooling fan 28 is driven by the engine 26 and supplies the generated cooling air to the radiator 27. Thus, the radiator 27 exchanges heat between the engine coolant heated by the engine 26 and the cooling air. Reference numeral 29 denotes an inlet (see FIG. 1) provided in the upper part of the left building 24 and the right building 25, respectively, and 30 denotes a rear side of the left building 24 and the right building 25, respectively. Outside air (cooling air) taken in from the suction port 29 flows in the order of the engine 26, the radiator cooling fan 28, and the radiator 27, and is exhausted from the exhaust port 30.
[0028]
31 is a plurality of hydraulic pumps disposed on the front side (left side in FIG. 2) of each engine 26, 32 is a high-pressure filter, and the hydraulic pump 31 is driven by the engine 26 and a plurality of hydraulic actuators via the high-pressure filter 32. Pressure oil is supplied to the traveling hydraulic motor 14, the turning hydraulic motor 17, the boom hydraulic cylinder 21, the arm hydraulic cylinder 22, the bucket hydraulic cylinder 23, and the like. Reference numeral 33 denotes a partition wall provided between the engine 26 and the hydraulic pump 31, and by this partition wall 33, hot air from the engine 26 side (right side in FIG. 2) flows into the hydraulic pump 31 side (left side in FIG. 2). It is supposed not to.
[0029]
Reference numeral 34 denotes a fuel tank for storing the fuel of the engine 26, and reference numeral 35 denotes a hydraulic oil tank for storing the hydraulic oil of the hydraulic pump 31. The fuel tank 34 and the hydraulic oil tank 35 are disposed between the left building 24 and the right building 25. Has been placed. A control valve device 36 is disposed in front of the fuel tank 34 and the hydraulic oil tank 35 and controls the flow of pressure oil from the hydraulic pump 31 to the plurality of hydraulic actuators.
[0030]
37 is an oil cooler disposed in the front side region of the right building 25, and 38 is an oil cooler cooling fan attached to the oil cooler 37. The oil cooler cooling fan 38 is driven by a motor, and the generated cooling air is used as oil. Supply to cooler 37. Thus, the oil cooler 37 exchanges heat with the cooling air from the plurality of hydraulic actuators and circulates the oil to the hydraulic oil tank 35. Reference numeral 39 denotes a greasing device. The greasing device 39 includes a movable range of the front device 6 (the boom 18, the arm 19, the bucket 20, the boom hydraulic cylinder 21, the arm hydraulic cylinder 22, and the above Lubricating oil is supplied to the bearing device or the like for connecting the bucket hydraulic cylinder 23) and the swivel bearing 16 or the like.
[0031]
40 is a fender provided on the left and right sides of the revolving frame 5 (see FIG. 1), 41 is a left passage formed on the left fender 40, 42 is a right passage formed on the right fender 40, Reference numeral 43 denotes a central passage formed in a substantially L shape at the center of the revolving structure 4, and the passage 10 includes the left passage 41, the right passage 42, and the central passage 43. For the floor members of the left passage 41 and the right passage 42, for example, a wire mesh-shaped grating plate 44 (see FIG. 3) or the like is used. Further, the height of the counterweight 11 is substantially the same as the floor position of the passage 10 (see FIG. 1 described above), so that the operator and the operator can move between the left passage 41, the right passage 42, and the central passage 43. ing.
[0032]
45 is a sliding ladder provided on the rear side of the left passage 41 and can extend and contract on the ground side (lower side in FIG. 1), 46 is a landing provided around the cab 7, and 47 is a left passage. 41 is a staircase (step) to the landing 46 provided in the center of 41. Further, reference numeral 48 denotes handrails for fall prevention provided respectively on the left passage 41, the right passage 42, the counterweight 11, the upper portions of the left building 24 and the right building 25, and the landing 46.
[0033]
The left side passage 41 includes a rear side region 41B located on the rear side of the ladder 45 and a front side region 41F located on the front side thereof. The front side region 41F is located on the lower left side of the cab 7 (that is, the landing). Cab lower area 41Fa (see FIG. 1 described above) located in the lower part of 46 and other areas 41Fb excluding this cab lower area 41Fa. The right passage 42 includes a rear side region 42B located on the rear side of the position corresponding to the ladder 45, and a front side region 42F located on the front side thereof. The central passage 43 includes a high-pressure pipe vicinity region 43a located in the vicinity of the control valve device 36 and the high-pressure pipe connected thereto, and another region 43b excluding the high-pressure pipe vicinity region 43a. Yes.
[0034]
Here, as a major feature of the present embodiment, 49 is a large-capacity battery that supplies a starting current to the engine 26 and the like, and 50 is provided below the passage 10 to accommodate the plurality of batteries 49. It is a battery mounting device. For example, 51 is a battery storage unit that stores three batteries 49, 52 is an opening / closing cover that is also used as a passage floor and is attached to the upper part of the battery storage unit 51, and the battery mounting device 50 includes the battery storage unit 51 and the opening / closing cover. For example, two sets of 52 are provided.
[0035]
FIG. 4 is a perspective view showing a schematic structure of the battery housing 51, and FIG. 5 is a longitudinal sectional view taken along the line VV in FIG.
[0036]
4 and 5 and FIG. 3 described above, the battery storage 51 includes a bottom plate 51a, a bottom frame 51b provided in the front-rear direction on the left and right sides of the bottom plate 51a for mounting the battery 49, a battery 49 is provided with a side plate 51c provided around the side surface of 49, and an upper plate 51d having an opening 51dA on which the opening / closing lid 52 is placed so that the battery 49 can be easily taken out from the opening 51dA of the upper plate 51d. It has become. An opening 51cA for guiding wiring (not shown) connected to the battery 49 is formed on the left side of the side plate 51c (upper left side in FIG. 4), and placed on the bottom frame 51b. Screw seats 51bA are formed at positions corresponding to the battery 49 (for example, four locations for one battery 49). Reference numeral 53 denotes a front / rear battery fixture having a substantially L-shaped cross section. The battery fixture 53 has, for example, two through holes 53a corresponding to the screw seats 51bA of the bottom frame 51b. Yes. Reference numeral 54 denotes a long bolt. The long bolt 54 is inserted from above the through hole 53a of the battery fixture 53 and is fastened to the screw seat 51bA of the bottom frame 51b, whereby the battery fixture 53 and the bottom frame 51a The battery 49 is clamped and fixed between.
[0037]
55 is a hinge attached to, for example, the right side (upper side in FIG. 3, left side in FIG. 5) of the opening / closing lid 52, and 56 is attached to, for example, the center of the left side (lower side in FIG. 3, right side in FIG. 5) of the opening / closing lid 52. The opening / closing lid 52 can be opened and closed. The opening / closing lid 52 has, for example, two through holes (not shown) at the left corner, and the upper plate 51d of the battery storage unit 51 has a screw hole 51dB at a position corresponding to the through hole of the opening / closing lid 52. Is formed. Reference numeral 57 denotes a bolt. The bolt 57 is inserted into a through hole of the opening / closing lid 52 and tightened into a screw hole 51 dB of the battery storage portion 51, thereby fixing the opening / closing lid 52 to the upper plate 51 d of the battery storage portion 51. ing. Reference numeral 58 denotes a packing member (for example, a rubber plate) provided around the opening 51dA of the upper plate 51d, which improves the sealing performance between the opening / closing lid 52 and the upper plate 51d, and rainwater or the like is contained in the battery housing 51. It is designed not to be submerged.
[0038]
59 is a locking tool (such as a hook) provided on the left wall 24A of the left building 24 and corresponding to the handle 56 of the opening / closing lid 52. The locking tool 59 locks the handle 56 of the opening / closing lid 52; The opening / closing lid 52 is fixedly supported while being opened.
[0040]
Next, the operation and effect of this embodiment will be described below.
For example, when excavation work or the like is performed, the operator ascends from the ground to the left passage 41 by the sliding ladder 45 and tries to turn the swing body 4 while operating the front device 6 of the excavator 1 in a desired manner. Go up the stairs 47 on the passage 41 and board the cab 7. When the operator starts the engine 26, the hydraulic cylinder 21 for the boom, the hydraulic cylinder for the arm 22, the hydraulic cylinder for the bucket 23, the hydraulic cylinder for swing 17, etc. are driven by the pressure oil from the hydraulic pump 31 driven accordingly. The hydraulic actuator is driven.
[0041]
Further, for example, various devices (engine 26, radiator 27, hydraulic pump 31, fuel tank 34, hydraulic oil tank 35, control oil tank 35, control valve device 36, etc. housed in the machine room 9 (the left building 24 and the right building 25) on the revolving structure 4. When performing maintenance work or the like of the oil cooler 37, the greasing device 39, etc.), the operator and the operator go to the target place through the passage 10 and the counterweight 11, and appropriately perform the work.
[0042]
In the present embodiment, among the passages 10 on the revolving structure 4, the left passage 41 (cab lower region 41Fa, other region 41Fb, rear region 41B), right passage 42 (front region 42F, rear region 42B). The battery 49 is disposed in the battery mounting device 50 installed below any one of the central passages 43 (the high pressure pipe vicinity region 43a and the other region 43b). Thereby, compared with the conventional structure which arrange | positions the battery 49 in the machine room 9, there is little thermal influence from an apparatus and it can improve the lifetime of a battery.
[0043]
Moreover, the following effects can be acquired by specifying the installation place of the battery attachment apparatus 50. FIG.
[0044]
(1) Any of the left passage 41 (cab lower region 41Fa, other region 41Fb, rear region 41B), right passage 42 (front region 42F, rear region 42B), and other region 43b of the central passage 43 When the battery mounting device 50 is installed below
In this case, the control valve device 36 and the high pressure are avoided by disposing the battery 49 below the control valve device 36 that generates heat due to pressure loss or the like and the high pressure piping vicinity region 43a located in the vicinity of the high pressure piping. Since the influence of heat from the piping can be reduced, the battery life can be improved more reliably.
[0045]
(2) The battery mounting device 50 is located below any one of the front region 41F (cab lower region 41Fa, other region 41Fb) of the left passage 41, the front region 42F of the right passage 42, and the other region 43b of the central passage 43. When installing
In this case, the battery is located below the rear region 41B of the left passage 41 and the rear region 42B of the right passage 42 of the revolving structure 4 that may collide with obstacles around the excavator 1 during the turning operation. By avoiding the placement of 49, it is possible to reliably prevent the battery 49 from being impacted by the collision of the turning body during the turning operation, and to further improve the durability.
[0046]
(3) When the battery attachment device 50 is installed below any of the other region 41Fb of the left passage 41, the front region 42F of the right passage 42, and the other region 43b of the central passage 43
In this case, by avoiding placing the battery 49 below the cab lower area 41Fa of the left passage 41 where the upper landing 46 is obstructive and it is difficult to lift the battery 49 by a machine such as a crane, The battery 49 can be reliably installed and replaced smoothly.
[0047]
(4) When the battery mounting device 50 is installed below the other area 41Fb of the left passage 41 (see FIG. 2 described above)
In this case, by arranging the battery 49 below the other area 41Fb of the left passage 41, that is, the area that passes when the operator enters and exits the cab 7 (area from the ladder 45 to the staircase 47), The operator can perform daily inspection of the battery 49 when getting in and out of the cab 7.
[0048]
In general, it is sufficient that the lower part of the passage 10 of the revolving structure 4 has a durable structure capable of supporting the load of a passing operator or operator, or the load of an excavated object unnecessarily loaded during excavation work, for example. The equipment is not accommodated and is an empty space. In the present embodiment, the battery 49 is disposed below the passage 10, and the opening / closing lid 52 that also serves as the passage floor is provided in the passage 10 corresponding to the upper portion of the battery 49 so that the battery 49 can be opened and closed. Exchange work is easy and the empty space of revolving unit 4 can be used effectively.
[0049]
In the above-described embodiment, the present invention is applied to the large excavator 1 including the two engines 26, and the arrangement of various devices in the revolving structure 4 is described as an example. However, the present invention is not limited to this. That is, for example, the present invention may be applied to a large excavator equipped with one engine 26. Such a modification will be described with reference to FIG.
[0050]
FIG. 6 is a plan view of a swiveling body 4 ′ showing the arrangement of various devices in the machine room 9 ′ according to this modification. In FIG. 6, the same parts as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.
[0051]
In this modification, 60 is a rear building disposed on the rear side (right side in FIG. 6) of the revolving body 4 ′, and 61 is disposed on the right front side (left upper side in FIG. 6) of the revolving body 4 ′. The machine room 9 ′ is composed of the rear building 60 and the front building 61. Reference numeral 62 denotes a central passage that is provided at the center of the swivel body 4 ′ and connects the left passage 41 and the right passage 42. The passage 10 ′ includes the left passage 41, the right passage 42, and the central passage 62. . The central passage 62 includes a high pressure pipe vicinity region 62a located in the vicinity of the control valve device 36 and the high pressure pipe connected thereto, and another region 62b excluding the high pressure pipe vicinity region 62a. .
[0052]
The engine 26 is arranged in the left-right direction (vertical direction in FIG. 6) in the rear building 60. As shown in the drawing, the intercooler 63, the radiator 27, and the radiator cooling fan 28 ′ are disposed on the left side (lower in FIG. 6). The hydraulic pump 31 and the high-pressure filter 32 are disposed on the right side (the upper side in FIG. 6) of the engine 26 via the partition wall 33. The radiator cooling fan 28 ′ is driven by a motor to supply the generated cooling air to the radiator 27 and the intercooler 63. In addition, the suction port 29 is provided in the upper part of the rear building 60 (not shown), and the exhaust port 30 is provided in the left side surface of the rear building 60 so that outside air (cooling air) taken in from the suction port 29 is received. The engine 26, the intercooler 63, the radiator 27, and the radiator cooling fan 28 'flow in this order, and are exhausted from the exhaust port 30.
[0053]
The fuel tank 34 is disposed on the left front side (lower left side in FIG. 6) of the rear building 60, and the control valve device 36 is disposed on the front side (left side in FIG. 6) of the rear building 60. The hydraulic oil tank 35, the oil cooler 37, the oil cooler cooling fan 38, and the greasing device 39 are arranged in the front building 61.
[0054]
Also in the swivel body 4 ′ of the large excavator 1 ′ having such a configuration, a battery mounting device 50 ′ for storing, for example, four batteries 49 is installed below the passage 10 ′, as in the above-described embodiment. Thereby, like the said one embodiment, there is little thermal influence from an apparatus and the lifetime of the battery 49 can be improved.
[0055]
In this modification, high-temperature air from the exhaust port 30 of the rear building 60 is exhausted to the rear region 41 </ b> B of the left passage 41. Thereby, for example, any of the front side area 41F (the cab lower area 41Fa, the other area 41Fb), the right side path 42 (the front side area 42F, the rear side area 42B), and the other area 43b of the central path 43 is provided. When the battery mounting device 50 is installed below (in other words, not installed below the rear side region 41B of the left passage 41 and the high pressure pipe vicinity region 62a of the central passage 62), the control valve device 36, the high pressure The influence of heat from the piping and the engine 26 can be reduced, and the life of the battery 49 can be further reliably improved.
[0056]
According to the construction machine equipped with the battery mounting device of the present invention, the life of the battery can be reliably improved and the frequency of battery replacement work can be reduced. it can.
[0057]
In addition, according to the construction machine equipped with the battery mounting device of the present invention, the installation / replacement work of the battery is easy, so that the operation stop time of the construction machine can also be shortened.
[0058]
Further, according to the construction machine equipped with the battery mounting device of the present invention, the battery mounting device is installed below the passage, so that the flexibility of changing the arrangement of the equipment installed on the revolving structure of the construction machine is improved. improves.
[0059]
【The invention's effect】
According to the present invention, compared with a conventional structure in which a battery is arranged in a machine room (building) of a revolving body in which various devices including an engine are arranged, there is less thermal influence from the surroundings, and the battery life can be improved. .
[Brief description of the drawings]
FIG. 1 is a side view showing the overall structure of a large hydraulic excavator to which a battery mounting device for a construction machine according to the present invention is applied.
FIG. 2 is a plan view of a revolving structure representing an arrangement of various devices in a machine room together with an embodiment of a battery mounting device for a construction machine according to the present invention.
FIG. 3 is a partially enlarged horizontal sectional view of a portion A in FIG. 2 and shows the overall structure of an embodiment of the battery mounting device for a construction machine according to the present invention.
FIG. 4 is a perspective view showing a schematic structure of a battery storage portion constituting one embodiment of a battery mounting device for a construction machine according to the present invention.
5 is a longitudinal sectional view taken along the line VV in FIG. 3, and shows an open / close state of an open / close door constituting one embodiment of a battery mounting device for a construction machine according to the present invention.
FIG. 6 is a plan view of a revolving structure showing the arrangement of various devices in the machine room together with a modification of the battery mounting device for a construction machine according to the present invention.
[Explanation of symbols]
1 Excavator
3 Running body
4 Revolving body
6 Front device
7 cab
9 passage
34 Fuel tank
35 Hydraulic oil tank
36 Control valve device
37 oil cooler
38 Cooling fan for oil cooler
41 Left passage
41F Front area of left passage
41Fa Left cab cab area
41Fb Other area of left passage
41B Rear side area of left passage
42 Right side passage
42F Front area of right passage
42B Rear side area of right passage
43 Central passage
43a Area near the high-pressure pipe in the central passage
43b Other areas of the central passage
49 battery
50 Battery mounting device
51b Bottom frame (member for mounting battery)
52 Opening and closing lid (lid member)
62 Central passage
62a Area near the high-pressure pipe in the central passage
62b Other areas of the central passage

Claims (3)

A traveling body, a revolving body provided on the traveling body so as to be capable of swiveling, a front device provided on the revolving body so as to be able to be lifted and lowered, a cab disposed on the revolving body and forming a driver's cab, and the revolving body. A building that houses the equipment including the engine, a passage that is disposed outside the cab and the side of the building, and that is provided at a height accessible from the side of the building, and supplies a starting current to the engine In a construction machine equipped with a plurality of batteries
The bottom plate is disposed below the passage, and includes a bottom plate, a bottom frame provided on the bottom plate, on which the plurality of batteries are placed, a side plate, and an upper plate in which an opening is formed. A battery storage unit that has a fixture for clamping between the battery, and allows the plurality of batteries to be stored and taken out from the upper opening;
A construction machine comprising a lid member also serving as a passage floor and attached to a top opening of the battery storage portion via a hinge so as to be opened and closed. In the construction machine according to claim 1 Symbol placement, construction machine, wherein a lockable fastener while the open state of the lid member is provided on the side wall of the building. A traveling body, a revolving body provided on the traveling body so as to be capable of turning, a front device provided on the revolving body so as to be able to move up and down, and a cab disposed in a left front region of the revolving body and forming a driver's cab; The left building disposed in the left rear region of the revolving structure, the right building disposed in the right region of the revolving structure, and the two engines disposed in the rear region of the left building and the right building, respectively. An oil cooler and an oil cooler cooling fan disposed in a front region of the right building, a hydraulic oil tank and a fuel tank disposed between the left building and the right building, and the hydraulic oil tank and the fuel tank A control valve device disposed on the front side of the engine, a plurality of batteries for supplying a starting current to the engine, the cab, the left side building, and the right side of the right side building, and arranged on the left side. And a passage provided at a height accessible from the side to the building and the right building, and the passage is provided at a left side passage provided at a left side edge of the revolving unit and a right side edge of the revolving unit. In a construction machine having a right passage, and a central passage provided between the left building and the right building,
Wherein arranged below the realm located on the rear side of the cab at the left passageway, a bottom plate, a bottom frame for mounting a plurality of batteries provided in the bottom plate, side plate, and the upper plate having an opening formed A battery storage section that includes a fixture that clamps and fixes the battery to and from the bottom frame, and allows the plurality of batteries to be stored and taken out from an upper opening;
A construction machine comprising a lid member also serving as a passage floor and attached to a top opening of the battery storage portion via a hinge so as to be opened and closed.

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