JP3119593B2 - Storage structure in construction machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of construction machines such as hydraulic shovels used for various construction works and civil works.

[0002]

2. Description of the Related Art Generally, in a construction machine such as a hydraulic excavator, it is necessary to periodically lubricate a bearing portion such as a swing bearing and a movable portion such as a swing portion of a working portion.
It may be a construction site, and in such a case, manual lubrication using a grease gun is performed. For this reason, it is preferable that the grease gun is always provided in the construction machine so that the greasing operation can be easily performed anywhere. Therefore, conventionally, the cab has been housed in a cab which can also be locked for security.

[0003]

When such a construction machine is miniaturized, some cabs are not provided, and even if provided, the space becomes narrow, so that the grease gun is stored. It is difficult to secure a space in the cab, so it is attempted to secure a grease gun storage space in a lockable engine room. However, it is preferable that the operator always keep in mind the greasing, since there are places where the greasing must be performed frequently. However, when the grease gun is stored in the engine room, the grease gun is usually inconspicuous, and there is a problem that the operator tends to forget to check the greasing, and there is a problem to be solved by the present invention. .

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been made to solve these problems, and is provided with a fuel tank and a hydraulic oil tank arranged side by side. In a construction machine comprising a cover body for covering the upper part of the fuel tank, the storage space is formed between the upper surface of the fuel tank and the hydraulic oil tank and the cover body, and the storage space is provided with a greasing unit. It contains a grease gun. By doing so, the grease gun can be stored in a lockable cover even in a small construction machine having no cab, which is preferable for crime prevention. Further, in this case, there is an advantage that the grease gun enters the operator's eyes to prompt lubrication every time the cover is opened to replenish the fuel in the fuel tank or to check the hydraulic oil tank. . Furthermore, in this thing, the cover body
In the case where the retaining portion for retaining the grease gun is formed on each retaining member for retaining the open state and the closed state , the grease gun can be retained by effectively utilizing the respective retaining members. It is possible to prevent noise and protect the grease gun and cover, but there is no need to provide a separate locking member dedicated to the grease gun. The installation work is not required due to the above-mentioned operations, which is convenient.

[0005]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a hydraulic excavator. The hydraulic excavator 1 includes a lower traveling body 2 of a crawler type, an upper revolving body 3 rotatably supported by the lower traveling body 2, and a front portion of the upper revolving body 3. The basic configuration such as the configuration including the working unit 4 and the like to be attached to the device is the same as the conventional one.

In the embodiment, the upper revolving unit 3 has a steering unit 7 provided with a driver's seat 5, various operation levers 6 and the like on the left side. A tank unit 10 is arranged such that the hydraulic oil tank 9 is located on the rear side of the tank 8, and an engine room 11 is arranged behind the control unit 7 and the tank unit 10.

Reference numeral 12 denotes a cover body for covering the upper part of the fuel tank 8 and the hydraulic oil tank 9.
Has a locking device 13 for locking the cover body 12 in a closed state, while being attached to be able to swing open and close via a hinge 12a. Further, the rear half of the upper surface 8a of the fuel tank 8 and the upper surface 9a of the hydraulic oil tank 9 are provided so as to be substantially flush with each other, but these upper surfaces 8a, 9a and the cover in the closed state are provided. A storage space S is formed between the body 12 and the grease gun 1 for greasing, as described later.
4 can be stored.

In the present embodiment, the grease gun 14 is a lever-type gun in which a nozzle portion 14b is formed at the tip end of a gun body 14a to be filled with grease, and lubrication is performed by operating a lever 14c. Has been adopted. The grease gun 14 moves in the front-rear direction in which the base half of the gun body 14a is located above the fuel tank 8 and the tip half of the gun body 14a and the nozzle 14b are located above the hydraulic oil tank 9. It is set so as to be stored in the storage space S in a facing state.

On the other hand, reference numeral 15 denotes a holding device for full opening provided for holding the cover body 12 in the fully opened state when the cover body 12 is fully opened. Swing plate 16 movably mounted
And a support pin 18 which is movably fitted in a guide groove 16a formed in the swing plate 16 and is integrally attached to a support bracket 17 fixed to the hydraulic oil tank upper surface 9a. I have. The support pin 18 moves relative to the guide groove 16a in connection with the swing of the swing plate 16 accompanying the opening and closing of the cover body 12. When the cover body 12 is fully opened, the support pin 18 is moved to the guide groove. By engaging the engaging groove 16b formed at the end of the cover 16a, the cover body 12 can be held in the fully opened state, whereby the cover body 12 in the fully opened state is inadvertently closed. Can be prevented.

Further, the support bracket 17 is formed with a concave groove portion 17a for locking the grease gun 14 stored in the storage space S and a locking groove 17b. That is, the support bracket 17 includes a bottom surface portion 17c fixed to the hydraulic oil tank upper surface portion 9a, left and right leg portions 17d and 17e provided on both left and right sides of the bottom surface portion 17c, and a rearward portion from the bottom surface portion 17c. A front piece 17g standing upright at the front end of the extending bottom face 17f is integrally formed, and the support pin 18 is integrally attached to the left leg piece 17d. I have. A groove 17a is formed by the bottom face 17c and the left and right leg pieces 17d and 17e. The grease gun 1 is formed in the groove 17a.
4 can be fitted and locked, whereby the movement of the grease gun 14 in the left-right direction can be restricted. Further, a locking groove 17b that can lock the base end of the nozzle portion 14b of the grease gun 14 is formed in the upper edge portion of the front piece portion 17g so that the nozzle portion 14b can be locked. The movement of the gun 14 toward the rear of the machine can be restricted.

Reference numeral 19 denotes a closing holding device provided for holding the cover body 12 in the closed state when the cover body 12 is closed.
A catch bar 21 attached to the upper end of a mounting bracket 20 erected from the upper surface 8a of the cover member, and a catch spring 22 attached to the inner surface of the cover body 12 and removably engaged with the catch bar 21. It is configured. The closing holding device 19 can hold the cover body 12 in a closed state by engaging the catch spring 22 with the catch bar 21 when the cover body 12 is closed. The cover body 12 can be prevented from being opened carelessly.

Further, the catch bar 21 is integrally formed with a locking bar 21a for locking the grease gun 14 stored in the storage space S. That is, the catch bar 21 is connected to the catch spring 22.
The engaging bar 21a is formed to be bent rightward and downward from the front end thereof. When the grease gun 14 is stored in the storage space S in a state where the grease gun 14 faces in the front-rear direction as described above, the locking bar 21a is located slightly forward of the base side surface of the gun body 14a. Thereby, the movement of the grease gun 14 toward the front of the fuselage can be restricted.

Reference numeral 23 denotes a cushion material attached to the inner surface of the cover body 12;
3 is a grease gun 1 stored in the storage space S
The grease gun 14 is interposed between the cover 4 and the cover body 12 so as to restrict the vertical movement of the grease gun 14. Thus, the grease gun 14 is restricted from moving in the left and right directions by the concave groove portion 17a, the support of the nozzle portion 14b and the movement to the rear side are restricted by the locking groove 17b, and the front side is restricted by the locking bar 21a. , And is stored in the storage space S in a stable state in which movement in the vertical direction is further restricted by the cushion material 23. Further, when the grease gun 14 is stored in this manner, the lever 1
4c is located at a position which does not hinder the opening and closing of the lid 8b which opens and closes the injection port of the fuel tank 8, but is very close to the lid 8b.

The cover body 12 is integrally formed with an inner side surface 12b to cover not only the upper part of the fuel tank 8 and the hydraulic oil tank 9 but also the upper part of the inner side surface (left side) of the two tanks 8,9. However, if the fuel tank 8 is mounted so as to protrude more toward the inside of the machine than the hydraulic oil tank 9 due to a mounting error or the like, when the cover body 12 is to be closed from the open state, The lower edge of the inner side surface 12b of the machine is the protruding corner 8c of the fuel tank 8.
Therefore, in the present embodiment, the following considerations are made to avoid this. In other words, the mounting bracket 20 has a substantially rectangular shape bent at the center in the vertical direction, and the lower half thereof extends substantially vertically from the inside end of the fuel tank 8 (left end). The upper half is inclined upward and to the right, and the catch bar 21 is attached to the upper end thereof.
It is in shape. When the cover body 12 is to be closed from the open state, the lower end edge of the inboard side surface 12b contacts the R-shaped bent portion 20a of the mounting bracket 20 before contacting the protruding corner 8c. The lower side is guided by the R-shaped bent portion 20b, so that the mounting bracket 20 for mounting the catch bar 21 is effectively used to protrude the inner side surface 12b. It is possible to avoid deformation by hitting the corner 8c.

On the other hand, in mounting and fixing the fuel tank 8 and the hydraulic oil tank 9 to the body frame 24, in the present embodiment, first, the hydraulic oil tank 9 is formed so as to protrude laterally from the bottom portion. Attach the mounting piece 9b to the body frame 24 with the bolt 25 fixed from above,
Next, the fuel tank 8 is mounted. In this case, if the fuel tank 8 is also fixed by bolts from the upper side in the same manner as the hydraulic oil tank 9, the facing distance between the fuel tank 8 and the hydraulic oil tank 9 is increased. It is necessary to secure a large enough so that the bolting work can be performed, and there is a problem that the length of the fuel tank 8 in the front-rear direction must be short, that is, the capacity must be small. Therefore, in the present embodiment, the fuel tank 8 is fixed from the lower side of the body frame 24 so that the facing space α can be made as small as possible so that the fuel tank 8 can have a large capacity. Is configured. That is, a cylindrical mounting seat 26 is welded to the bottom surface 8d of the fuel tank 8, and a screw hole 26a is formed in the mounting base 26. On the other hand, the mounting frame 26
A through-hole 24a is formed in a portion corresponding to. Then, the stud bolt 27 inserted into the through hole 24a from below the body frame 24 is screwed into the screw hole 26a of the mounting seat 26 and tightened with the nut 27a, so that the fuel tank 8 is positioned below the body frame 24. It can be fixed from the side.

The engine room 11 is provided with an engine 27, and various engine accessories such as a fuel filter 28, a water segmenter 29, and a fuel pump 30. 31. Further, a counter weight 32 is provided below the engine hood 31. The engine auxiliary device is configured so that the count weight 32 is attached to the count weight 32 with the body frame 33 attached. I have. In other words, the counterweight 32 has a frame mounting seat 32a formed in the upper central portion and the lower left and right portions, and the bolt 33b is screwed into the frame mounting seat 32a from the machine frame 33 side to thereby increase the body frame. 3
3 to be integrally fixed. 34
Is a mounting plate on which engine accessories such as the fuel filter 28, the water segmenter 29, and the fuel pump 30 are mounted. The engine auxiliary device is mounted on the mounting plate 34, and further, the water segmenter 29 and the fuel pump 30 are mounted. The connecting hose 35 between the fuel tank 30 and the fuel filter 28 and the connecting hose 36 between the fuel filter 28 are connected to each other to form an assembly state, and the mounting plate 34 in this state is connected to a plate mounting seat formed at the upper end of the counterweight 32. The engine auxiliary device is fixed to the body frame 3 by using bolts 35 to the engine frame 3c.
3 is attached to the count weight 32 attached. As a result, the count weight 32 can be attached to the body frame 33 at a stage before the engine accessory is attached, so that the engine accessory does not hinder the attachment of the count weight 32 and the workability is improved. improves. 36 is a connecting hose between the fuel tank 8 and the water segmenter 29;
Is a connection hose between the engine 27 and the fuel filter 28, and the hoses 36 and 37 are connected to the mounting plate 3
4 may be connected after attaching to the counter weight 32. Further, a locking bar 39 for locking with a locking latch 38 provided on the engine hood 31 is mounted on the upper portion of the mounting plate 34. Accordingly, the mounting plate 34 serves as both a member for mounting the engine auxiliary device and a member for locking, so that there is an advantage that the members can be shared.

In the construction described above, the cover body 12 is provided so as to be openable and closable so as to cover above the fuel tank 8 and the hydraulic oil tank 9 arranged side by side. Upper surface portion 8 of both tanks 8, 9
A storage space S is formed between a and 9a, and the grease gun 14 for greasing can be stored in the storage space S.

As a result, the grease gun 14 can be stored in the lockable cover 12 even in a small construction machine having a narrow cab or a small cab. Further, in this case, the grease gun 14 comes into the eyes of the operator every time the cover body 12 is opened in order to replenish the fuel in the fuel tank 8 or to check the hydraulic oil tank 9 for leaks. Since the gun 14 is inconspicuous as in the case where the gun 14 is stored in the engine room 11, there is no possibility that the lubrication is easily forgotten. In addition, in the present embodiment, the grease gun 14 is provided with a lid 8 b for opening and closing the injection port of the fuel tank 8.
On the other hand, since the lid 8b is arranged so as not to obstruct the opening and closing of the lid 8b but to be close to each other, the operator is strongly encouraged to lubricate each time fuel is supplied, which is convenient.

Further, in this case, the grease gun 1
4 is a concave groove 17a, a locking groove 17b, and a locking bar 2
1a restricts the movement in the front-rear and left-right directions, and is further stored in the storage space S in a state where the vertical movement is restricted by the cushioning material 23 attached to the inner surface of the cover body 12. Gun 1
In this case, the groove 17a, the locking groove 17b, and the locking bar 21a move the opening / closing cover 12 into the open state and the closed state. It is formed on the support bracket 17 and the catch bar 21 which are members for holding. As a result, the grease gun 14 can be locked by effectively using the member that holds the openable / closable cover 12 in the open and closed states, so that there is no need to separately provide a dedicated locking member, and it is possible to use the member in common. At the same time, there is no need to attach a dedicated locking member by welding or the like, which is convenient.

[Brief description of the drawings]

FIG. 1 is a plan view of a hydraulic excavator.

FIG. 2 is a side view showing opening and closing of a cover body.

FIG. 3 is a side view of a tank unit.

FIG. 4 is a front view of a tank unit.

FIG. 5 is a plan view of a tank unit.

FIG. 6 is a perspective view of a support bracket.

FIG. 7 is a side view showing a mounted state of the tank.

FIG. 8 is a plan view of an engine room.

FIG. 9 is a rear view of the engine room.

FIG. 10 is a side view showing a mounted state of a counterweight and a mounting plate.

[Explanation of symbols]

 Reference Signs List 8 fuel tank 8a upper surface 9 hydraulic oil tank 9a upper surface 12 cover body 14 grease gun 17 support bracket 17a concave groove 17b locking groove 21 catch bar 21a locking bar S storage space

Claims (2)

(57) [Claims] 1. A construction machine in which a cover body for covering the upper part of a fuel tank and a hydraulic oil tank arranged in front and rear is openably and closably provided. A storage structure in a construction machine in which a storage space is formed between the above and a grease gun for greasing is stored in the storage space. 2. The cover according to claim 1, wherein the cover is open.
And a storage structure in a construction machine in which a retaining portion for retaining a grease gun is formed in each of the retaining members for retaining in a closed state .