JP3980912B2 - Swivel work machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a swivel work machine having a storage space in a swivel frame.
[0002]
[Prior art]
In a hydraulic excavator as a swing type work machine, an upper swing body is turnably provided on a lower traveling body, and a cab and a front work device are mounted on the upper swing body.
[0003]
The space under the cab of the upper swing body is dense with pilot hydraulic piping, electrical wiring, etc., for example, it is narrow for installing small items such as tool boxes and grease guns. It is common to install in.
[0004]
[Problems to be solved by the invention]
However, it is difficult to secure a space in which small items such as those described above can be stored in a model having a small space in the layout, such as a small revolving machine with a small rear end radius of the upper revolving structure.
[0005]
The present invention has been made in view of the above points, and an object of the present invention is to secure a space in which small items can be stored in a swivel type working machine having a small space in layout.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a lower traveling body, an upper revolving body that is turnably provided on the lower traveling body, a cab that is mounted on the upper revolving body, and a front projection of the cab. A revolving frame having a hollow beam member that is driven to swivel with respect to the lower traveling body and that has an outer end as an open end and that houses a guard member for preventing cab breakage in the inner space , A fender mounted on the periphery of the frame, an opening provided on the peripheral side surface of the fender at a position corresponding to the rear end of the outer portion of the cab and corresponding to the opening end of the beam member, and openable on the opening. And a storage space provided inside the door body for storing small items, and is bent inward as the cab outer part is located behind the outer shell part of the upper revolving body. tree turbocharger Breakfast is mounted, storage The inter is a swing-type operation machine provided in an empty space area between the opening located in the outer shell of the open end and the upper rotating body of the beam member mainly located under the cab outer portion, Since the rear part of the cab with respect to the front where the working device is protruded has room in space, an opening and a door body are provided on the peripheral side surface of the fender of the upper swing body at a position corresponding to the rear part of the outer part of the cab, Since the storage space for small items is provided inside the door body, it is possible to secure a space for storing small items in a revolving type work machine with little space on the layout. from sharing the curved been key catcher Bed inwardly with increasing, because the upper swing structure with increasing on the rear side of the cab is projected from relatively cab outer portion, moreover, the projecting portion, the cab outside Parts provided between the opening provided in the outer shell of the open end and the upper rotating body of the beam member located below the, because such pilot hydraulic piping and electric wiring is empty space area does not exist By effectively using this empty space area, a storage space for small items can be secured. At the same time, the inner space of the beam member of the swivel frame is used as a guard member storage space for storing a guard member for preventing cab breakage, and the opening and the door body correspond to the opening end of the beam member. Therefore, in the swivel type work machine having a small space in the layout, it is possible to secure a storage place where the guard member can be stored.
[0007]
The invention described in claim 2, in pivot type working machine according to claim 1, on the upper swing structure, key catcher blanking which is curved inwardly in accordance with the cab outer portion is on the rear side is higher than the revolving frame position Since the cab is mounted at a high position, it is possible to secure a rear view and obtain a storage space with a sufficient height.
[0008]
According to a third aspect of the present invention, there are provided a tool box, a grease gun, a washer tank, and a controller as the accessories in the swivel type work machine according to the first or second aspect, and the tool box, the grease gun, the washer tank, and the controller. Can be centrally installed in the storage space inside the fender corresponding to the rear part of the cab, and space efficiency and work efficiency can be improved.
[0009]
According to a fourth aspect of the present invention, the swivel type work machine according to any one of the first to third aspects is a small swirler with a small rear end radius of the upper revolving structure, and a small space with little space on the layout. Even with a swivel machine, the storage space located below the cab can be used by the opening and door provided in the fender of the upper revolving body at a position corresponding to the rear part of the cab. It is possible to secure a space for storing the kind.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to one embodiment shown in FIGS.
[0011]
FIG. 2 shows a hydraulic excavator as a swivel type work machine, which is driven through a sprocket (not shown) by a traveling hydraulic motor (not shown) with a pair of crawlers 11 mounted at the bottom. Thus, a lower traveling body 12 that moves the airframe is provided, and the upper revolving body 14 can turn on the lower traveling body 12 via a turning portion 13 that is driven by a turning hydraulic motor (not shown). Is provided.
[0012]
A front working device 15 for excavation as a working device is mounted on the front portion of the upper turning body 14, and a cab having a glass window 16 on the upper turning body 14 at one side of the front working device 15. The counterweight 18 for balancing the mass of the front work device 15 is mounted on the rear part of the upper swing body 14, and between the front work device 15 and the counterweight 18 is mounted. A power device 19 such as an engine is mounted on the upper swing body 14.
[0013]
The front working device 15 is projected in front of the cab 17 as a whole, and the base end portion of the boom 21 is pivotally supported by the upper swing body 14 so as to be rotatable in the vertical direction. A base end portion of the arm 22 is pivotally supported so as to be rotatable inward and outward, and a bucket 23 is pivotally supported at a distal end portion of the arm 22 so as to be freely rotatable in the opening / closing direction.
[0014]
The boom 21 is rotated in the vertical direction by a boom hydraulic cylinder 24 provided between the upper swing body 14 and the arm 22 is moved inward and outward by an arm hydraulic cylinder 25 provided between the boom 21 and the boom 21. The bucket 23 is rotated in the opening / closing direction by a bucket hydraulic cylinder 26 and a linkage 27 provided between the bucket 23 and the arm 22.
[0015]
This hydraulic excavator is a small turning machine in which the rear end radius of the upper turning body 14 is small enough to allow the upper turning body 14 to turn on the lower traveling body 12.
[0016]
As shown in FIG. 3, the upper revolving structure 14 has a revolving frame 31 that is revolvingly driven with respect to the lower traveling structure 12, and the revolving frame 31 is a pair of welded to the center portion in the front-rear direction. A main frame plate 32 is provided.
[0017]
A boom fitting groove 33 for avoiding interference with the base end portion of the boom 21 is formed in a concave shape in the center of the front portion of the revolving frame 31 and is surrounded by the plate 34. Between the front portions of the pair of main frame plates 32 facing the boom fitting groove 33, a boom mounting bracket 35 for pivotally supporting the base end portion of the boom 21 and a base end portion of the boom hydraulic cylinder 24 are provided. And a cylinder mounting bracket 36 for pivotally supporting each other.
[0018]
A counterweight mount portion 37 for mounting a counterweight is welded to the rear portion of each main frame plate 32. Each of the counterweight mounts 37 is provided with a bolt insertion hole 38 for inserting a bolt (not shown) for fixing the counterweight 18.
[0019]
An engine mounting portion 39 for mounting the engine is welded to the pair of main frame plates 32 between the boom mounting bracket 35 and the counterweight mounting portion 37.
[0020]
A flat beam member 41 is welded to the revolving frame 31 on one side of the boom mounting bracket 35. The upper surface of the beam member 41 and the front end portion on one side of the boom fitting groove 33 of the revolving frame 31 are attached. A pair of cab mounts 42 and a pair of cab mounts 43 for mounting the cab 17 are welded to each other.
[0021]
Plates 44 and 45 are welded between the cab mount portions 42 and 42 on the beam member 41 and between the cab mount portions 43 and 43 on the front end portion, respectively. Piping / wiring regions 46 such as pilot hydraulic piping and electric wiring to be drawn are defined.
[0022]
On the revolving frame 31 opposite to the beam member 41, a hydraulic oil tank mounting portion 47 for mounting a hydraulic oil tank and a fuel tank mounting portion 48 for mounting a fuel tank are respectively installed and surrounded by a plate 49. .
[0023]
As shown in FIGS. 1 and 2, a fender 51 is mounted around the swivel frame 31, and an opening 52 is provided on the peripheral side surface of the fender 51 at a position corresponding to the rear portion of the outer portion of the cab 17. One side portion of the door 53 as a door body is attached to the opening portion 52 by a hinge 54 so as to be opened and closed. The other side of the door 53 is provided with a key hole (not shown), and the door 53 closed flush with the fender 51 can be locked.
[0024]
As shown in FIG. 1, a storage space 55 is provided inside the door 53, and a tool box 56 as a accessory, a grease gun 57, a washer tank 58, and an attachment as a controller are provided in the storage space 55. The controller 59 is housed and is positioned and fixed by a fixing bracket (not shown).
[0025]
The grease gun 57 is disposed above the storage space 55, the tool box 56 and the washer tank 58 are disposed below the grease gun 57, and the attachment controller 59 is disposed on the beam member 41 at the back thereof. Yes.
[0026]
The tool box 56 is a tool box for storing various tools such as a spanner and a hammer, the grease gun 57 is a manual pump for filling the mechanical rubbing portion with grease, and the washer tank 58 is a glass window of the cab 17. This is a container for the cleaning liquid supplied to the wiper attached to 16, and can be stored in two types, large and small.
[0027]
The attachment controller 59 is separate from the main controller for controlling the main control valve of the hydraulic circuit, and when an attachment such as a hydraulic breaker or a hydraulic crusher is attached to the tip of the arm 22 instead of the bucket 23, It is a controller installed to control these attachment operations, and in order to check the indicator of this attachment controller 59, it is necessary to open the door 53.
[0028]
On the other hand, in the piping / wiring area 46 provided in most of the lower space of the cab 17, the pilot hydraulic piping 63 drawn out from the cab through the cylindrical portion 62 attached to the cab platform 61, electrical wiring, and the like are concentrated. Therefore, the small article storage space 55 is not installed in the piping / wiring area 46.
[0029]
Further, the beam member 41 welded to one side portion of the swivel frame 31 is a hollow beam member having an open end 64 at the outer end, and the fender 51 is also associated with the open end 64 of the beam member 41. An opening 52 is provided, and the door 53 is openably and closably provided in the opening 52.
[0030]
A guard member storage space 65 is provided inside the door 53 and in the inner space of the beam member 41. In this guard member storage space 65, a vandalism guard 66 as a guard member for preventing cab breakage is provided. It is stored in a folded state.
[0031]
The vandalism guard 66 is a foldable shielding iron plate that is attached to the outside of the glass window 16 of the cab 17 and protects the glass window 16 from mischief and the like, and a plurality of different sizes are accommodated.
[0032]
FIG. 4 shows a planar arrangement on the upper swing body 14, and a swivel joint 71 for connecting the hydraulic piping between the lower travel body 12 and the upper swing body 14 is disposed at the center, and the lower travel body is located in the vicinity thereof. A turning hydraulic motor 72 for turning the upper turning body 14 with respect to the body 12 is disposed, an engine 73 is disposed behind the turning hydraulic motor 72, and a hydraulic circuit hydraulic pressure is provided on one side of the engine 73. A pump 74 is installed, and a radiator and oil cooler cooling package 75 as a cooling device and an air filter 76 are arranged on the other side of the engine 73, and a cab 17 is arranged in front of these, and the cab 17 A main control valve 77, a hydraulic oil tank 78, and a fuel tank 79 of the hydraulic circuit are arranged on the opposite side of the boom fitting groove 33.
[0033]
The upper revolving unit 14 shown in FIG. 4 is of a specific model, but is bent inward as the cab outer part is located behind the outer shell of the upper revolving unit of the specific model. Therefore, the storage space 55 is mainly an empty space of the relatively large upper swing body 14 protruding from the outer portion of the relatively small cab 17. This is provided in the area A.
[0034]
For example, in a 21-ton class small-swivel hydraulic excavator, that is, a small-swivel machine, the cab 17 is shared with an 8-ton or 13-ton class small machine. The portion protruding from the ton class cab 17 becomes an empty space area A, and this empty space area A is a dead space in which no pilot hydraulic piping or electric wiring is present in the upper swing body 14, and therefore this empty space area is mainly used. A is effectively used as the storage space 55.
[0035]
Further, the cab mounts 42 and 43 shown in FIG. 3 are provided on the upper revolving body 14 of a specific model, and the cab 17 common to a small model bent inwardly as the cab outer part is on the rear side. It is installed at a sufficient height so that it can be mounted higher than 31.
[0036]
For example, the cab 17 is positioned about 60% higher than the 8 ton or 13 ton class small aircraft so that a sufficient rear view can be obtained even in the 8 ton or 13 ton class cab 17 Therefore, as shown in FIG. 1 (b), the empty space area below the cab platform 61 has more margin than the 8 ton or 13 ton class small machines. The area is effectively used as the storage space 55.
[0037]
Next, the function and effect of the illustrated embodiment will be described.
[0038]
Open the door 53 with the unlocked key of the door 53, take out the required tool box 56 and grease gun 57 from the storage space 55 inside the door 53, and replenish the washer tank 58 with cleaning liquid, or Check the indicator on the attachment controller 59.
[0039]
When the tool box 56 and the grease gun 57 are returned to the storage space 55 and the cleaning liquid replenishment of the washer tank 58 or the indicator confirmation of the attachment controller 59 is completed, the door 53 is closed and locked.
[0040]
Since the opening 52 and the door 53 are provided in the fender 51 of the upper swing body 14 at a position corresponding to the rear part of the cab 17 having a space, the layout of the accessory storage space 55 is provided inside the door 53. In a swivel type work machine with little space, it is possible to secure a space for storing small items such as the tool box 56, the grease gun 57, the washer tank 58, and the attachment controller 59.
[0041]
Since the smaller cab 17 is shared by the larger upper swing body 14, the upper swing body 14 protrudes relatively from the cab 17 toward the rear of the cab 17. Since the empty space area A has no electrical wiring or the like, the empty space area A can be used effectively to secure the storage space 55 for small items.
[0042]
Even if the cab 17 common to the small model is applied to the large model, since the cab 17 is mounted at a higher position than the small model, the rear view can be secured and the storage space part 55 having a sufficient height can be obtained.
[0043]
By effectively using the empty space area A as the storage space section 55, the tool box 56, the grease gun 57, the washer tank 58 and the attachment controller 59 are placed in the storage space section 55 inside the fender 51 corresponding to the rear part of the cab 17. Can be installed centrally. Thereby, the space efficiency is improved and the working efficiency is improved as compared with the case where these are dispersedly arranged.
[0044]
In short, by providing the opening 52 and the door 53 in the fender 51 of the upper swing body 14 at a position corresponding to the rear portion of the cab 17 so that the storage space 55 inside the fender 51 can be accessed, the cab 17 Since the empty space area A located on the lower side can be effectively used as the storage space section 55, even a small swirler with a small space on the layout can secure a space for storing small items, and the space on the layout It is a very effective space utilization for a few small swirlers.
[0045]
Further, the inner space of the beam member 41 of the swivel frame 31 is used as a guard member storage space 65 for storing a guard member for preventing cab breakage, and the fender of the upper swing body 14 corresponding to the opening end 64 of the beam member 41. Since the opening 52 and the door 53 are provided in 51, it is possible to secure a storage place in which the vandalism guard 66 can be stored in a swivel type work machine having a small space in layout.
[0046]
In other words, by providing the opening 52 and the door 53 in the fender 51 of the upper swing body 14, the inner space of the beam member 41 of the swing frame 31 that has not been used in the dead space in the past can be used as the guard member storage space. Even a small swivel-type swivel work machine that can be effectively used as 65 and has a small space in the layout can secure a storage space for storing the folded vandalism guard 66.
[0047]
The present invention can be applied not only to excavators for excavation by the bucket 23 but also to work machines in which a hydraulic breaker, a hydraulic crusher, and the like are mounted on the same machine body as the excavator.
[0048]
【The invention's effect】
According to the first aspect of the present invention, the opening and the door body are provided on the peripheral side surface of the fender of the upper swing body at a position corresponding to the rear portion of the outer portion of the cab having a space, and the accessory is provided inside the door body. In the revolving type work machine with little space on the layout, it is possible to secure a space for storing small items, especially on the upper revolving body, as the cab outer part becomes the rear side. from sharing the curved been key catcher blanking, because the upper swing structure with increasing on the rear side of the cab is projected from relatively cab outer portion, moreover, the projecting portion is positioned below the cab outer portion It provided between the opening located in the outer shell of the open end and the upper rotating body of the beam member, because such pilot hydraulic piping and electric wiring is empty space area does not exist, the empty space area And efficient use, it is possible to ensure the storage space of the small parts. At the same time, the inner space of the beam member of the swivel frame is used as a guard member storage space for storing a guard member for preventing cab breakage, and the opening and the door body correspond to the opening end of the beam member. Therefore, in the swivel type work machine having a small space in the layout, it is possible to secure a storage place where the guard member can be stored.
[0049]
According to the second aspect of the present invention, since the cab is mounted at a high position, it is possible to secure a rear view and to obtain a storage space having a sufficient height.
[0050]
According to the third aspect of the present invention, the tool box, grease gun, washer tank, and controller can be centrally installed in the storage space inside the fender corresponding to the rear portion of the cab, and space efficiency and work efficiency can be improved.
[0051]
According to the fourth aspect of the present invention, even in a small swirler with a small space on the layout, the opening portion provided on the fender of the upper swing body and the door body at a position corresponding to the rear portion of the cab lower than the cab. Since the storage space located on the side can be used, a space for storing small items can be secured.
[Brief description of the drawings]
FIG. 1 (a) is a plan view of an essential part showing an embodiment of an upper swing body of a swing type work machine according to the present invention, and FIG. 1 (b) is a view of small items stored in the storage space. It is a front view which shows the example of arrangement | positioning.
FIG. 2 is a perspective view of the same turning type work machine.
FIG. 3 is a perspective view showing a turning frame of the same turning type work machine.
FIG. 4 is a plan view showing an arrangement example on the upper swing body of the same turning type work machine.
[Explanation of symbols]
12 Undercarriage
14 Upper swing body
15 Front working device as working device
17 cab
31 Swivel frame
41 Beam members
51 Fender
52 opening
53 Door as a door
55 Storage space
56 Accessories (Toolbox)
57 Accessories (Grease Gun)
58 Accessories (washer tank)
59 Accessories (attachment controller as a controller)
64 open end
66 Vanderism Guard A as a Guard Member Empty Space Area

Claims (4)

A lower traveling body,
An upper swing body provided on the lower traveling body so as to be swingable; and
A cab mounted on the upper swing body and a working device protruding in front of the cab,
The upper swing body is
A swivel frame having a hollow beam member that is pivotally driven with respect to the lower traveling body and that has an outer end as an open end and houses a guard member for preventing cab breakage in the inner space ;
A fender mounted around the swivel frame;
An opening provided on the peripheral side surface of the fender at a position corresponding to the rear portion of the outer portion of the cab and corresponding to the opening end of the beam member ;
A door body that can be freely opened and closed at the opening;
A storage space provided inside the door body for storing small items,
Curved been key turbocharger blanking is mounted on the inside in accordance with the cab outer portion is the rear at the inside from the outer shell of the upper rotating body,
The storage space portion is provided in an empty space region mainly between the opening end of the beam member located below the cab outer portion and the opening portion located in the outer shell portion of the upper swing body. Mold work machine. The upper rotating body, swing-type operation machine according to claim 1, wherein the key catcher blanking which is curved inwardly in accordance with the cab outer portion is on the rear side is mounted higher than the revolving frame position. The swivel work machine according to claim 1 or 2, wherein the accessories are a tool box, a grease gun, a washer tank, and a controller. The revolving type work machine according to any one of claims 1 to 3, wherein the revolving end machine is a small revolving machine having a small rear end radius.

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