JP3308467B2 - Bonnet equipment for turning work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonnet device for a turning machine such as a backhoe.

[0002]

2. Description of the Related Art Conventionally, for example, in a small backhoe, as shown in FIG. 8, a driver's seat 52 is provided on a front left side of a swivel table 51 which is supported by a traveling device so as to be rotatable around a vertical axis. An engine 5 is provided behind the driver's seat 52.
3 are arranged. A radiator 54 is arranged on the left side of the engine 53, and a battery 55, a fuel tank 56 for the engine, and a hydraulic oil tank 57 for various hydraulic devices are arranged in order from the front on the right side of the driver's seat 52.

The engine 53, radiator 54, battery 55, fuel tank 56 and hydraulic oil tank 57
Is covered with a bonnet 58 mounted on the swivel table 51. The bonnet 58 is divided into a plurality of portions because of its complicated shape and difficult to integrally mold. That is, the bonnet 58
For example, a pair of front and rear right covers 58A, 58B covering the right side of the driver's seat 52, an intermediate cover 58C covering the front half of the engine 53 and the radiator 54, and a rear cover of the engine 53 and the radiator 54 Side cover 5
8D.

[0004]

In the conventional backhoe described above, the radiator 54, the battery 55, and the fuel tank 5
6 and the hydraulic oil tank 57 were set in a plane regardless of the divisional shape of each of the cover portions 58A to 58D of the bonnet 58. Therefore, for example, in the example shown in FIG. 8, the front right cover portion 58A is opened when supplying and inspecting the battery 55, and the rear right cover portion 58B is opened when supplying and inspecting the fuel tank 56 or the hydraulic oil tank 57. In addition, it is necessary to open the rear cover 58D for water supply / inspection of the radiator 54, and the refueling / water supply / inspection work is very complicated.

[0005] In view of such circumstances, the present invention can perform refueling, water supply, and inspection work of various internal devices in a turning work machine simply by opening a specific one of the divided hood covers. Thus, an object of the present invention is to improve the work efficiency of the maintenance work of the turning work machine. In addition, refueling of fuel tanks, hydraulic oil tanks, radiators and batteries that need to be performed frequently
It is a second object of the present invention to further improve the work efficiency by allowing the water supply work to be performed only by opening an inspection cover provided on the cover portion of the hood so as to be freely opened and closed.

[0006]

In order to achieve the above object,
The present invention has taken the following technical measures. That is, according to the present invention, a swivel is provided on a traveling device so as to be rotatable around a vertical axis, and a fuel tank, a hydraulic oil tank,
In a turning working machine provided with a radiator and a battery, and provided with a hood covering them, the bonnet is divided by a plurality of covers independently attached to the turning table, and the fuel tank, The hydraulic oil tank, the radiator, and the battery are intensively arranged on a plane area covered by a specific one of the plurality of covers on the swivel base , and the specific one of the covers is provided. Part 2
5, an opening for oil supply and water supply formed in the cover portion 25.
The inspection cover 25b for closing the part 28 is provided to be freely opened and closed.
Between the hydraulic oil tank 21 and the battery 23.
While arranged in direction, these hydraulic oil tank 21及
And a fuel tank 20 disposed in front of the battery 23, and
Radiator behind the hydraulic oil tank 21 and battery 23
The fuel tank 20 and the hydraulic oil
Filling ports 20a, 21a of the tank 21 and the radiator 22
And the water supply ports 22a, 23a of the battery 23
28 are intensively arranged at positions corresponding to 28 .

Therefore, according to the present invention, the fuel tank, the hydraulic oil tank, the radiator, and the battery are exposed to the outside only by removing one specific cover from the swivel or rotating the cover relative to the swivel. Then, the refueling, water supply and inspection work can be performed. Also, the fuel tank,
Refueling of hydraulic oil tank, radiator and battery
And water supply work must be performed particularly frequently,
Refueling and water supply work is performed by the bonnet, which is a relatively large member.
It is quite difficult to remove or open and close the cover
It is.

[0008] Accordingly, the present invention provides the above-mentioned specific cover.
Opening in the cover for oiling and watering
An inspection cover that closes the fuel tank is provided so that it can be
And hydraulic oil tank filler holes and radiators and batteries.
Concentrate the water supply port at the position corresponding to the opening.
You. In this way, fuels that need to be
For tanks, hydraulic oil tanks, radiators and batteries
The bonnet cover
Rather than simply opening the inspection cover
Become like

Further, the present invention recommends that a fan for cooling the radiator be further arranged in a plane area which can be covered by one specific cover portion. In this case, the inspection of the fan of the radiator and the replacement work of the fan belt can be performed only by removing one specific cover portion from the swivel base or rotating the cover with respect to the swivel base. Also,
A fuel filler port 20a is provided at the rear of the fuel tank 20 to
By providing the water supply port 22a at the front of the fuel tank 22, the fuel supply port of the fuel tank and the hydraulic oil tank and the water supply ports of the radiator and the battery can be intensively arranged at positions corresponding to the openings .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The drawing shows a small backhoe 1 exemplified as a turning work machine. In FIG. 5, the backhoe 1 mainly includes a traveling device 2, a revolving unit 3, and an excavator 4. Hereinafter, the traveling direction of the backhoe 1 indicated by an arrow A in FIG. 1 is referred to as a front-rear direction, and a lateral direction indicated by an arrow B perpendicular to the front-rear direction is referred to as a left-right direction.

As shown in FIGS. 1 and 5, the traveling device 2 includes a pair of right and left crawler traveling members 5 each having a crawler belt made of rubber, and a crawler-type traveling device in which these traveling members 5 are driven by a traveling motor M. The device is employed. A dozer 6 is provided at a front portion of the traveling device 2. The revolving unit 3 includes a revolving table 7 rotatably supported on a bearing 8 provided at a central portion between the left and right crawler traveling units 5 of the traveling device 2 so as to be rotatable around a vertical axis of rotation. The revolving base 7 is configured by covering a frame formed by combining a frame material having a front part and an intermediate part with a plate material with a cover member, and a rear part of the revolving base 7 is fixed to the frame and 7 is constituted by a counterweight 9 for balancing the weight with the excavator 4 and the like at the front.

The turntable 7 is configured to be turned around a turning axis by a turn motor supported by a frame of the turntable 7. The backhoe 1 is of a type referred to as a so-called small backward turn. That is, in plan view, the revolving unit 3 has a rear surface side formed in an arc shape having a center substantially at the revolving axis in plan view, and a revolving locus circle drawn by the revolving unit rear surface when the revolving unit turns is formed by a left and right crawler traveling unit. 5 fits within the left-right width.
Also, as shown in FIG. 1, the left and right side surfaces of the revolving unit 3 are formed on surfaces along the front-rear direction with the revolving unit 3 facing forward, and are formed by a diameter of a turning locus circle drawn by the rear surface of the revolving unit 3. It is formed narrow. Further, in the same state, the front surface of the revolving unit 3 is formed on a surface along the left-right direction, and the left side protrudes forward more than the right side.

As shown in FIG. 1 and FIG.
A pair of upper and lower support members 10 for supporting the excavator 4 protrude from the front right side of the vehicle. A swing bracket 11 is pivotally attached to the support member 10 via a support shaft so as to be able to swing left and right around a vertical axis. The swing bracket 11 is swingable left and right by a hydraulic cylinder (not shown). ing. As shown in FIG. 5, the excavator 4 includes a boom 12 having a base pivotally attached to a swing bracket 11 so as to be swingable about the left and right axes, and a free end swingable about the left and right axes at the tip end of the boom 12. And a bucket 14 attached to the distal end side of the arm 13 so as to be free to squeeze and dump.

The boom 12 includes a boom cylinder 15 provided between the swing bracket 11 and a middle part of the boom 12.
The arm 13 is swung by an arm cylinder 16 provided between the middle part of the boom 12 and the base of the arm 13, and the bucket 14 is attached to the base of the arm 13 and the mounting portion of the bucket 14. A squeeze and dump operation is performed by a bucket cylinder 17 provided between the squeeze and the cylinder. The rear upper surface and the right upper surface of the swivel 7 are open, and these open portions are covered by a bonnet 18 projecting upward from the upper surface of the swivel 7. Inside the hood 18 is an engine 19.
And a fuel tank 20 for the engine 19, a hydraulic oil tank 21 for various hydraulic devices, a radiator 22, a battery 23, and the like, which are fixed to a frame of the swivel 7 or the like.

The fuel tank 20 and the hydraulic oil tank 21 are arranged at the front right side of the swivel 7 and are respectively arranged in the front-rear direction. Behind the hydraulic oil tank 21, a radiator 22 has a core whose left and right directions are directed. Are arranged as follows. The engine 19 is disposed horizontally on the left side of the radiator 22 in the left-right direction, and the fan belt 46 is disposed on the right side of the engine 19.
A radiator fan 45 is provided, which is driven to rotate. The hydraulic pump 2 is located on the left side of the engine 19.
4 are provided. As shown in FIGS. 1 and 2, the fuel tank 20, the hydraulic oil tank 21, the radiator 22, the battery 23, and the radiator fan 45
They are intensively arranged in a plane area covered by a right-side cover 25 described later, which constitutes a part of the divided hood 18. Therefore, by simply opening the right cover 25 from the swivel 7, the inspection work of the fuel tank 20, the hydraulic oil tank 21, the radiator 22, and the battery 23, the inspection of the radiator fan 45, and the replacement work of the fan belt 46 can be performed. It has become.

The fuel tank 20 disposed at the front of the plane area covered by the right cover 25 has an oil supply port 20a at the rear of its upper surface, and the hydraulic oil tank 21 disposed at the center of the plane area. Is located at the center of the upper surface
Radiator 22 disposed at the rear of the planar area
Is provided with a water supply port 22a on the front right side thereof. on the other hand,
On the upper right side of the hydraulic oil tank 21, a storage recess 21b which is recessed in a square is formed, and the battery 23 is stored in the storage recess 21b. As shown in FIG. 2, the battery 23 has a water supply port 23a on the upper left side thereof.

The fuel tank 20 and the hydraulic oil tank 21
The arrangement relationship is not limited to the case of FIG. 2 and the front and rear positions of the fuel tank 20 and the hydraulic oil tank 21 may be interchanged and arranged.
In addition, these can be juxtaposed in the left-right direction in a plane area covered by the right cover portion 25. The hood 18 is made of resin or a thin steel plate, and has a right-side cover portion 25 that covers the fuel tank 20, the hydraulic oil tank 21, the radiator 22, the radiator fan 45, and the like, and a rear portion of the hood 18 that covers the rear portion of the engine 19. Side cover 26
And a left cover 27 that covers the engine 19 from the left side of the hood 18 to the right cover 25.

When the bonnet 18 is divided into three parts as described above, the division surface of the bonnet 18 (the joint portion of the bonnet structure) can be reduced as much as possible, and the deviation due to the production distortion between the parts is improved, and the part is rounded. It is easy to manufacture with a different design. The rear cover portion 26 of the respective cover portions that divide the bonnet 18 is supported on the swivel 7 via a hinge (not shown) so as to be rotatable up and down around the left and right axes. By opening it, the engine 18 and the surroundings of the engine can be inspected.

On the other hand, the left cover 27 is fixed to the swivel 7 and is divided into two parts at the joint of the hydraulic pump 24.
The left divided portion is detachable. As shown in FIG. 1, the right cover part 25 is
And a main body 25a that constitutes most of the main body 25a.
And an inspection cover 25b which can be opened and closed. The main body 25a is supported on the swivel 7 via a hinge (not shown) so as to be rotatable up and down around the left and right axes. The main body 25a includes the fuel tank 20 and the hydraulic oil tank 2
An opening 28 is formed corresponding to one of the fuel inlets 20a, 21a, and the water inlets 22a, 23a of the radiator 22 and the battery 23. The opening 28 is connected to the inspection cover 25.
b is closed.

The main body 25a of the right cover 25
May be detachably attached to the swivel 7 so that it can be completely removed from the swivel 7. As shown in FIG. 2, a groove 32 is formed on the front edge side, the rear edge side, and the left edge side of the opening 28, and the inspection cover 2 is formed on the periphery of the opening 28.
A seal member 33 (see FIG. 3) which is in contact with the lower surface of 5b is fitted. On the other hand, on the lower surface of the left side edge of the inspection cover 25b, a mounting portion 34 for attaching the turning piece 29a of the hinge 29 is provided, and the fixing piece 2 of the hinge 29 is provided on the main body 25a.
9b is provided for attaching the inspection cover 2
5b is supported by a pair of front and rear hinges 29 so as to be rotatable around a front-rear axis and can be opened and closed.

By simply opening the inspection cover 25b, it is possible to supply oil to the fuel tank 20 and the hydraulic oil tank 21 and supply water to the radiator 22 and the battery 23. In addition, a striker 30 is provided on the right rear portion of the inspection cover 25b, and a lock device 3 coupled to the striker 30 to maintain the inspection cover 25b in a closed state.
1 is provided on the main body 25a side, and the lock device 31 can be released by an engine key or the like.

A driver's seat 36 is arranged at the center in the left-right direction of the left cover 27 of the hood 18. Operation tables 37 and 38 are arranged on both left and right sides of the driver's seat 36, and operation levers 39 for turning operation of the turntable 7 and operating the arm are provided on the left operation table 37. Also,
The right operating console 38 is provided with operating levers 40 for boom operation and bucket operation. The driver's seat 36
A traveling lever 41 for operating the left and right traveling body 5 is provided in front of the vehicle. As shown in FIGS. 2, 6, and 7, a large number of cooling air blown out from the radiator fan 23 and passed through the core of the radiator 22 is exhausted to the outside at the rear side of the right cover 25 of the bonnet 18. A discharge port 42 composed of a long hole is formed. Between the outlet 42 and the radiator 22, the upper and lower edges and the front and rear edges of the radiator 22 protrude toward the periphery of the outlet 42, so that the cooling air passing through the core of the radiator 22 can be leaked without leakage. Up and down and front and back guide walls 4
3A, 43B, 43C and 43D are provided.

The present invention is not limited to the above embodiment. For example, the arrangement structure of each member on the swivel 7 may be reversed left and right with respect to FIG.

[0024]

As described above, according to the present invention,
By simply opening one of the cover portions of the hood, lubrication, water supply, and inspection of various internal devices in the turning work machine can be performed, and work efficiency of maintenance work of the turning work machine can be improved. Further, according to the present invention, it is necessary to refuel the fuel tank, the hydraulic oil tank, the radiator and the battery which need to be performed frequently.
Since the water supply operation can be performed only by opening the inspection cover provided on the cover portion of the hood so as to be freely opened and closed, the work efficiency of the oil supply and water supply operation can be further improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a backhoe according to the present invention.

FIG. 2 is a plan view of the right side of the hood of the backhoe.

FIG. 3 is a rear sectional view of the right side of the hood of the backhoe.

FIG. 4 is a side sectional view of the right side of the hood of the backhoe.

FIG. 5 is an overall side view of the backhoe.

FIG. 6 is a right side view of the revolving superstructure of the backhoe.

FIG. 7 is a rear view of the revolving superstructure of the backhoe.

FIG. 8 is a plan view of a revolving structure of a conventional backhoe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Backhoe 2 Traveling device 7 Revolving base 18 Bonnet 20 Fuel tank 20a Filling port 21 Hydraulic tank 21a Filling port 22 Radiator 22a Filling port 23 Battery 23a Filling port 25 Right cover section 25a Main body section 25b Inspection cover 26 Rear cover section 27 Left side Cover 28 Opening 45 Radiator fan

Continuation of the front page (56) References JP-A-8-209743 (JP, A) JP-A-5-125742 (JP, A) JP-A-8-311926 (JP, A) JP-A-9-2355752 (JP) , A) JP-A-5-125744 (JP, A) JP-A-4-4944 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02F 9/00 E02F 9/10

Claims (3)

(57) [Claims] A swivel (7) is provided on a traveling device (2) so as to be rotatable around a vertical axis, and a fuel tank (20) and a hydraulic oil tank (21) are provided on the swivel (7). ), A radiator (22), a battery (23), and a hood (18) covering them, wherein the hood (18) is independently attached to the swivel (7). A plurality of covers (25)
(26) The fuel tank (20), the hydraulic oil tank (21), the radiator (22) and the battery (23) are divided by the (27) and (27), Cover part (25) (26)
(27) are intensively arranged in a plane area covered by one specific cover portion (25), and
To one specific cover part (25).
Close the opening (28) for oil supply and water supply formed in 5).
An inspection cover (25b) is provided to be openable and closable, and the hydraulic oil tank (21) and the battery (23) are
These hydraulic oil tanks are arranged side by side to the right.
(21) and a fuel tank in front of the battery (23)
(20), and the hydraulic oil tank (21)
Placing the radiator (22) behind the terry (23)
The fuel tank (20) and the hydraulic oil tank (21)
Refueling port (20a) (21a) and radiator (22)
And the water inlets (22a) (23a) of the battery (23)
Concentratedly arranged at a position corresponding to the opening (28);
And hood apparatus of rotary working machine, characterized in that are. 2. A turning machine according to claim 1, further comprising a fan (45) for cooling the radiator (22) in a plane area which can be covered by one specific cover part (25). Bonnet equipment. 3. A fuel supply port (2) is provided at a rear portion of the fuel tank (20).
0a) is provided, and a water inlet is provided at the front of the radiator (22).
With the provision of (22a), the fuel supply ports (20a) and (21a) of the fuel tank (20) and the hydraulic oil tank (21 ) are provided.
The water supply ports (22a) and (23a) of the radiator (22) and the battery (23) are intensively arranged at positions corresponding to the openings (28). Bonnet device of a rotary work machine.