JP4982167B2 - Wheel loader - Google Patents

Description

  The present invention relates to a wheel loader, and more particularly to an arrangement of auxiliary devices provided around an engine.

  Conventionally, in construction machinery, oil filters, fuel filters, reservoir tanks, and other auxiliary devices for maintaining engine performance are arranged near the engine and radiator to which they are connected in consideration of piping handling. (Patent Document 1). For example, in Patent Document 1, an oil filter and a fuel filter are disposed below a hydraulic oil tank provided beside the engine, and a reservoir tank is disposed further rearward of a radiator provided behind the engine.

Japanese Patent Laid-Open No. 11-81377

  However, in Patent Document 1, since each auxiliary device is arranged away from each other, it is necessary to perform maintenance / inspection work by changing the posture for each auxiliary device, and the maintenance / inspection operation is inefficient. There was a problem.

  An object of the present invention is to provide a wheel loader capable of performing maintenance / inspection work of auxiliary devices at a time.

A wheel loader according to claim 1 of the present invention is a wheel loader in which a work machine is provided in front of a vehicle body, and a cab is provided in a rear frame in which an engine is accommodated, An engine hood is attached to the rear side of the cab, and is disposed in an empty space provided in a side of the rear frame in an engine room formed below the engine hood. one servicing bracket fixed to the frame are provided, e Bei multiple accessory to maintain engine performance, said plurality of auxiliary equipment are mounted in pre-consolidating the KiSei備用bracket, and the rear frame It is arrange | positioned above the upper end of this.
Here, the “auxiliary device” refers to, for example, an oil filter, a fuel filter, a reservoir tank, a water separator, and the like. The servicing bracket, such auxiliary equipment need only be attached are two or more Ueto.

  A wheel loader according to a second aspect is the wheel loader according to the first aspect, wherein a first mounting seat and a second mounting seat that protrude horizontally outwardly are provided at upper ends of either side of the rear frame. The maintenance bracket is formed in a substantially gate shape and is spanned between the first mounting seat and the second mounting seat which are provided apart from each other.

  In the above, according to the first aspect of the present invention, since the auxiliary devices are collectively attached to the maintenance bracket, the maintenance and inspection work of the auxiliary devices can be performed at a time, and the rear portion of the auxiliary device can be operated by the maintenance bracket. Since it is disposed above the upper end of the frame, it is not necessary to perform work such as inserting a hand into the rear frame, and maintenance and inspection work can be easily performed.

  According to the second aspect of the present invention, the first and second mounting seats that project horizontally outward are provided at the upper end of one of the rear frames, and the first and second mounting seats are for maintenance. Since the bracket is bridged, the auxiliary device is provided on the side of the rear frame. Therefore, it is not necessary to step into the engine room for maintenance / inspection work, and the work can be performed more easily in a comfortable posture.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the entire wheel loader 1 according to the present embodiment.
The wheel loader 1 of the present embodiment has a structure in which the operating mass is around 2.5 t, and the front frame 3 is attached to the front side of the rear vehicle body 2 so as to be articulateable. The rear frame 11 of the rear vehicle body 2 is provided with a rear wheel 4 and a driver's cab 5 and houses a power line including an engine. The front frame 3 is provided with a front wheel 6, a work machine 7 is provided further forward of the front frame 3, and a bucket 8 is attached to the tip of the work machine 7.

FIG. 2 is an overall perspective view showing the rear frame 11.
The rear frame 11 has plate-like main beams 21A and 21B arranged on the left and right sides, a bottom plate 22 and a top plate 23 that connect the front ends of the main beams 21A and 21B, and the rear ends of the main beams 21A and 21B. A back plate 24 to be connected, a pair of front and rear thick plate-like ASKUL supports 25 that connect lower portions at substantially intermediate positions of the main beams 21A and 21B, and upper portions at substantially intermediate positions of the main beams 21A and 21B are connected. A substantially gate-shaped reinforcing bracket 26 is provided.

  In the rear frame 11, an engine 14 (see FIGS. 2 and 4) is housed and disposed above an axle support 25 provided at the approximate center of the rear frame 11. At substantially the center of the main beams 21A, 21B, at positions corresponding to the upper side of the engine 14, first mounting seats 27A, 27B that protrude horizontally outward are provided.

  The reinforcing bracket 26 is detachably fixed to the first mounting seats 27A and 27B with bolts, and the engine hood 12 can be freely opened and closed on the reinforcing bracket 26 via a hinge member 26A (see FIG. 5). Attached to. Of the first mounting seats 27A and 27B, the first mounting seat 27A provided on the main beam 21A on the left side (the front side in FIG. 2) has a maintenance bracket (described later) on the inner side of the portion where the reinforcing bracket 26 is mounted. A hole 28 for attaching the bracket 41 is formed.

  On the outer surface of the left main beam 21A, a second mounting seat 29 that protrudes horizontally outward is provided at the upper end of the rear portion that is lower than the upper end of the central portion. The second mounting seat 29 is also provided with a hole 29A for mounting the maintenance bracket 41.

3 is a perspective view showing the inside of the engine room 13, FIG. 4 is a plan view showing the inside of the engine room 13, and FIG. 5 is a rear view showing the inside of the engine room 13.
In the engine room 13 formed under the engine hood 12, an oil filter 31, a fuel filter 32, a reservoir tank 33, a water separator 34, and an air filter 35 are provided as a plurality of auxiliary devices 30. Here, in the present embodiment, the engine 14, the oil cooler 15, the radiator 16, and the like are disposed in the center of the rear frame 11 in the left-right direction (vertical direction in FIG. 4), and a battery (not shown). Is arranged in a space on the right side (upper side in FIG. 4) of the rear frame 11 to secure a free space on the left side (lower side in FIG. 4) of the rear frame 11, and the auxiliary devices 30 are concentrated in this space. .

FIG. 6 is an enlarged view showing the arrangement position of the auxiliary device 30.
Specifically, as shown in FIG. 6, the auxiliary device 30 is assembled and attached to one maintenance gate 41 having a substantially portal shape whose both ends are bolted to the first and second mounting seats 27 </ b> A and 29. It is arranged on the left side of the rear frame 11 (front side in FIG. 6) and exposed above the upper end of the rear frame 11 when the engine hood 12 is opened.
Thus, according to this embodiment, since the auxiliary device 30 is attached to the maintenance bracket 41 in a collective manner, maintenance and inspection work of the auxiliary device 30 can be performed at one time, and maintenance and inspection work can be performed. It can improve efficiency. Further, since the auxiliary device 30 is arranged above the upper end of the rear frame 11 by the maintenance bracket 41, a large work space can be taken. Therefore, it is not necessary to perform work by inserting a hand into the rear frame 11, and maintenance / inspection work can be easily performed.

FIG. 7 is a perspective view showing the maintenance bracket 41, and FIG. 8 is a plan view showing the maintenance bracket 41.
The maintenance bracket 41 includes an L-shaped first leg portion 42 that is bolted to the first mounting seat 27A, and a first horizontal plane portion 43 that horizontally extends rearward from the upper end of the first leg portion 42. , A vertical surface portion 44 provided perpendicularly to the side of the first horizontal surface portion 43, a second horizontal surface portion 45 horizontally connected to the upper portion of the vertical surface portion 44, and a second surface that hangs down from the rear of the second horizontal surface portion 45. A second leg portion 46 that is L-shaped in side view and is bolted to the attachment seat 29, and an attachment piece 47 that is attached to the second horizontal plane portion 45 and disposed between the vertical surface portion 44 and the second leg portion 46, It is configured with.

  The first horizontal plane portion 43, the vertical plane portion 44, the second horizontal plane portion 45, the second leg portion 46, and the attachment piece 47 are respectively screw holes (nuts) 43A to 43A to which the auxiliary devices 30 and the pump 36 are attached. 47A is provided. The oil filter 31 is provided in the first horizontal plane portion 43, the reservoir tank 33 (see FIG. 3) is provided in the vertical plane portion 44, the fuel filter 32 is provided in the second horizontal plane portion 45, and the air filter is provided in the second leg portion 46. 35 and the pump 36, the water separator 34 is detachably attached to the attachment piece 47 by hexagon bolts (see FIG. 6).

The best configuration, method, and the like for carrying out the present invention have been disclosed above, but the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of quantity, other details, and the like.
Therefore, the description limited to the shape, quantity and the like disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

  For example, in the above embodiment, the maintenance bracket 41 is provided with the oil filter 31, the fuel filter 32, the reservoir tank 33, the water separator 34, and the air filter 35 as the auxiliary device 30. Any two or more may be attached to the maintenance bracket 41, and all of them need not be attached to the maintenance bracket 41.

  The present invention can be suitably used for a relatively small wheel loader and can also be used for a large wheel loader.

The side view which shows the whole wheel loader which concerns on one Embodiment of this invention. The whole perspective view which shows a rear frame. The perspective view which shows the inside of an engine room. The top view which shows the inside of an engine room. The rear view which shows the inside of an engine room. The enlarged view which shows the arrangement position of an auxiliary device. The perspective view which shows the bracket for maintenance. The top view which shows the bracket for maintenance.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Wheel loader, 11 ... Rear frame, 14 ... Engine, 27A ... 1st mounting seat, 29 ... 2nd mounting seat, 30 ... Auxiliary device, 41 ... Maintenance bracket.

Claims (2)

A wheel loader in which a work machine is provided in front of the vehicle body,
The rear frame that houses the engine is equipped with a cab,
An engine hood is attached to the rear frame behind the cab,
In the engine room formed below the engine hood, one maintenance bracket is provided that is disposed in an empty space provided on the side of the rear frame and fixed to the rear frame ,
E Bei multiple accessory to maintain engine performance,
It said plurality of auxiliary equipment are pre KiSei備用mounted collectively to the bracket, and a wheel loader, characterized in that it is arranged above the upper end of the rear frame. The wheel loader according to claim 1,
A first mounting seat and a second mounting seat projecting horizontally outward are provided at the upper end of either side of the rear frame,
The wheel loader, wherein the maintenance bracket is formed in a substantially gate shape and is bridged between the first mounting seat and the second mounting seat which are provided apart from each other.

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