JP2008121292A - Construction equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide construction equipment which a number of auxiliary devices can be set in a space of a constant volume. <P>SOLUTION: According to the structure of the construction equipment, a fuel filter 11 and an engine oil filter 13 are set on one side surface of a fuel tank 9 mounted on an upper revolving body of the construction equipment. The fuel filter 11 is fixed to the fuel tank 9 via a bracket 10, and the engine oil filter 13 is rotatably mounted on the fuel tank 9 via a hinge 12. In normal times other than maintenance, the fuel filter 11 and the engine oil filter 13 are arranged closely to each other, and therefore a filter cartridge 11b is set in an unreplaceable state. On the other hand, during maintenance, a movable piece 12b of the hinge 12 is pulled out to separate the fuel filter 11 from the engine oil filter 13, and therefore the filter cartridge 11b is set in a replaceable state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a construction machine such as a hydraulic excavator, and more particularly to a mounting structure for auxiliary devices such as a fuel filter.

  FIG. 8 is a diagram illustrating an attachment structure for auxiliary equipment in a construction machine. A fuel filter 102 and an engine oil filter 103 are attached to a side plate of the fuel tank 101. The fuel tank 101 is installed on an upper swing body (not shown).

  The fuel filter 102 includes a mechanism portion 102a and a filter cartridge 102b that is detachably mounted on the lower portion of the mechanism portion 102a. Removal of the filter cartridge 102b from the mechanism portion 102a determines the filter cartridge 102b in advance. This is performed by rotating in the released release direction to release the engagement with the mechanism portion 102a and then pulling it downward. The filter cartridge 102b is attached to the mechanism portion 102a by inserting the filter cartridge 102b into the lower portion of the mechanism portion 102a from below the mechanism portion 102a and then rotating in a predetermined fastening direction.

  On the other hand, the engine oil filter 103 includes a mechanism portion 103a and a filter cartridge 103b that is detachably mounted on the lower portion of the mechanism portion 103a. The removal of the filter cartridge 103b from the mechanism portion 103a is performed by the filter cartridge 103b. Is rotated in a predetermined release direction to release the engagement with the mechanism portion 103a, and then pulled downward. The filter cartridge 103b is attached to the mechanism portion 103a by inserting the filter cartridge 103b into the lower portion of the mechanism portion 103a from below the mechanism portion 103a and then rotating in a predetermined fastening direction.

  Conventionally, as shown in FIG. 8, the setting part of the fuel filter 102 and the setting part of the engine oil filter 103 are shifted in the left-right direction to open the lower side of the fuel filter 102 and replace the filter cartridge 102b. The filter cartridge 103b can be replaced. Instead of such a configuration, as shown in FIG. 9, the fuel filter 102 and the engine are provided with a sufficient working space provided between the filter cartridge 102b of the fuel filter 102 and the mechanism portion 103a of the engine oil filter 103. In some cases, the oil filters 103 are set side by side.

  As described above, the conventional construction machine has the setting part of the fuel filter 102 and the setting part of the engine oil filter 103 shifted in the left-right direction, or is sufficiently below the fuel filter 102 and the engine oil filter 103 arranged vertically. Since a large work space is provided, a large space is required for setting one auxiliary device, and there is a disadvantage that the number of auxiliary devices that can be set in a fixed volume space is limited or the construction machine is enlarged. . Further, in a small turning machine that can only be mounted with a small fuel tank 101, when the fuel filter 102 and the engine oil filter 103 are attached to the fuel tank 101, it becomes difficult to secure a necessary work space, and workability is improved. Inconvenience occurs.

  The present invention has been made to solve such deficiencies of the prior art, and an object of the present invention is to provide a construction machine capable of setting a large number of auxiliary devices in a fixed volume space.

  In order to solve the above-described problems, the present invention provides a construction machine in which a plurality of auxiliary devices are provided on an upper swing body, wherein at least one of the plurality of auxiliary devices is an auxiliary device position changing means. At the time of maintenance of a construction machine, maintenance of the auxiliary equipment attached to the predetermined auxiliary device setting unit via the auxiliary device position changing means other than the normal use position is performed. By moving to the position, the auxiliary equipment attached to the predetermined setting section through the auxiliary equipment position changing means or other auxiliary equipment set in the periphery thereof can be maintained, and the construction machine After completion of the maintenance, the auxiliary devices attached to the predetermined auxiliary device setting unit are moved to the normal use position through the auxiliary device position changing means, and the predetermined position is set via the auxiliary device position changing means. In the setting section Auxiliaries or maintenance of set other auxiliary equipment in its periphery was Attach has the configuration in which the disabled state.

  According to this configuration, since at least one auxiliary device is attached to the auxiliary device position changing means and can be moved to the normal use position or other maintenance position, a plurality of auxiliary devices are provided after the maintenance of the construction machine is completed. Compared to the case where each supplementary note is placed in a state where maintenance can be performed, a large number of auxiliary devices can be set in a narrow space. . In addition, during maintenance, the auxiliary equipment attached to the auxiliary equipment position changing means can be moved to a predetermined maintenance position. Therefore, it is necessary even when a plurality of auxiliary equipments are densely located in a small fuel tank. Maintenance work can be performed, and workability can be improved.

  Secondly, in the construction machine of the first configuration, the auxiliary device position changing unit fixes the hinge having a movable piece to which the auxiliary devices are attached, and the movable piece is fixed to the auxiliary device setting unit. It was set as the structure which consists of a fixing member to perform.

  According to such a configuration, since the auxiliary devices attached to the movable piece of the hinge can be turned, the auxiliary devices can be moved to the normal use position or maintenance position. In addition, since the fixing member is provided, the auxiliary devices can be stably held in a steady state.

  Thirdly, in the construction machine of the first configuration, the auxiliary device position changing means includes a sliding body to which the auxiliary devices are attached, a rail for guiding the sliding body, and the sliding body. It is configured to include a fixing member that is fixed to the rail.

  According to this configuration, since the auxiliary devices attached to the sliding body can be moved along the rail, the auxiliary devices can be moved to a normal use position or maintenance position. In addition, since the fixing member is provided, the auxiliary devices can be stably held during normal operation and maintenance.

  According to the present invention, since at least one auxiliary device is attached to the auxiliary device position changing means and can be moved to the normal use position or other maintenance position, each supplementary device is arranged in a state where maintenance is possible. Compared with the case where it does, many auxiliary devices can be set in a narrow space, and it can attain size reduction of a construction machine, performance enhancement, and improvement of workability | operativity.

  Hereinafter, an embodiment of a construction machine according to the present invention will be described taking as an example a case where a fuel filter and an engine oil filter are attached to a fuel tank of a hydraulic excavator. FIG. 1 is a side view of a hydraulic excavator according to the embodiment, FIG. 2 is a perspective view showing a steady state of the fuel tank according to the first embodiment, and FIG. 3 is a state during maintenance of the fuel tank according to the first embodiment. FIG. 4 is a perspective view of the main part of the fuel tank showing the attachment state of the hinge, FIG. 5 is a perspective view showing the state of the fuel tank according to the second embodiment in a steady state, and FIG. 6 is the second embodiment. FIG. 7 is a perspective view of a main part of the fuel tank showing a state in which the rail and the sliding body are attached.

  The overall configuration of the hydraulic excavator of this example is the same as that of a conventionally known general hydraulic excavator. As shown in FIG. 1, the lower excavator 1 and the lower excavator 1 can be turned. The upper swing body 2 provided at the top, the boom 3 whose one end is pin-coupled to the upper swing body 2 so as to be vertically movable, the arm 4 whose one end is pin-coupled to the boom 3 so as to be vertically movable, and one end is the arm 4 A bucket 5 that is pin-coupled to be movable up and down, a cab 6 provided on the boom installation side of the upper swing body 2, a counterweight 7 provided on the opposite side of the upper swing body 2 from the boom installation side, It has an equipment room 8 provided between the cab 6 of the upper swing body 2 and the counterweight 7 and a fuel tank 9 installed in the vicinity of the equipment room 8.

  As shown in FIGS. 2 and 3, the fuel tank 9 according to the first embodiment is formed in a rectangular parallelepiped box shape having a required volume, and a fuel filter 11 is disposed on one side thereof via a bracket 10. At the same time, an engine oil filter 13 is attached via a hinge 12 which is an auxiliary device position changing means. Necessary wiring and piping are applied to the fuel filter 11 and the engine oil filter 13 (not shown). A predetermined base portion of the bracket 10 is fixed to the fuel tank 9 by means such as welding. On the other hand, as shown in FIG. 4, the hinge 12 is composed of a fixed piece 12a, a movable piece 12b, and a pin 12c that rotatably connects these pieces, and the fixed piece 12a is fueled by means such as welding. While being fixed to the tank 9, the engine oil filter 13 is attached to the movable piece 12b. In the figure, reference numeral 9a denotes a top plate of the fuel tank 9, and reference numeral 9b denotes a fuel injection port attached to the top plate 9a.

  The movable piece 12b of the hinge 12 is screwed into the nut 14a attached to the fuel tank 9 and the nut 14a in a steady state, that is, a state other than a state where maintenance of the fuel filter 11 and the engine oil filter 13 is being performed. When the maintenance of the fuel filter 11 and the engine oil filter 13 is performed by fixing with the bolt 14b, the bolt 14b can be removed to turn within a limited range around the pin 12c. The engine oil filter 13 attached to the movable piece 12b is also turned within a limited range together with the movable piece 12b.

  The fuel filter 11 includes a mechanism portion 11a and a filter cartridge 11b that is detachably attached to the lower portion of the mechanism portion 11a. The mechanism portion 11a has a bolt 15 on a bracket 10 attached to one side surface of the fuel tank 9. It is concluded. The structure for attaching and removing the filter cartridge 11b to and from the mechanism portion 11a is the same as that of the conventional product shown in FIG. 8, and after rotating the filter cartridge 11b in a predetermined release direction to release the engagement with the mechanism portion 11a, By pulling downward, the filter cartridge 11b can be removed from the mechanism 11a. Further, the filter cartridge 11b can be attached to the mechanism portion 11a by inserting the filter cartridge 11b into the lower portion of the mechanism portion 11a from below the mechanism portion 11a and then rotating in a predetermined fastening direction.

  On the other hand, the engine oil filter 13 includes a mechanism portion 13a and a filter cartridge 13b that is detachably mounted on the lower portion of the mechanism portion 13a. The mechanism portion 13a is a hinge attached to one side surface of the fuel tank 9. The 12 movable pieces 12b are fastened with bolts 15. The attachment / detachment structure of the filter cartridge 13b with respect to the mechanism portion 13a is the same as that of the conventional product shown in FIG. 8, and the filter cartridge 13b is rotated in a predetermined release direction to release the engagement with the mechanism portion 13a. By pulling downward, the filter cartridge 13b can be removed from the mechanism portion 13a. Further, the filter cartridge 13b can be attached to the mechanism portion 13a by inserting the filter cartridge 13b into the lower portion of the mechanism portion 13a from below the mechanism portion 13a and then rotating in a predetermined fastening direction.

  In the steady state, as shown in FIG. 2, the fuel filter 10 and the engine oil filter 13 are set at positions where they overlap vertically, and the setting interval between them is that the filter cartridge 11b is attached to and detached from the mechanism 11a with respect to the fuel filter 11. It is set to a size that cannot. As a result, the fuel filter 10 and the engine oil filter 13 can be packed and installed in a narrow space, and the construction machine can be downsized or the number of auxiliary devices set can be increased. A space is provided below the engine oil filter 13 so that the filter cartridge 13b can be attached to and detached from the mechanism portion 13a.

  At the time of maintenance, the bolt 14b is removed from the nut 14a, and the engine oil filter 13 is turned about the pin 12c of the hinge 12, thereby setting the fuel filter 10 and the engine oil filter 11 as shown in FIG. Shift the position horizontally. As a result, a space for allowing the filter cartridge 11b to be attached to and detached from the mechanism portion 11a is formed below the fuel filter 11, and the filter cartridge 11b can be replaced.

  Hereinafter, the fuel tank according to the second embodiment will be described. As shown in FIGS. 5 to 7, the fuel tank 9 according to the second embodiment includes a rail 21, a sliding body 22 slidably attached to the rail 21, and a rail 21 as auxiliary device position changing means. For this, a member comprising a fixing member 23 for fixing the sliding body 22 is used. Since other parts are the same as those in the first embodiment, the corresponding parts are denoted by the same reference numerals and description thereof is omitted.

  The rail 21 is composed of a rail body 21a made of a metal rod and the like, and fixing members 21b provided at both ends of the rail body 21a. As shown in FIG. The fixing members 21 at both ends are fixed to one side surface of the fuel tank 9. The sliding body 22 is formed of a metal plate or the like. As shown in FIG. 7, a through hole 22a for penetrating the rail 21 is formed in the left and right direction, and a fixing member 23 is formed in the vertical direction. A screw hole 22b for screwing is formed up to a position penetrating the through hole 22a. As the fixing member 23, a thumbscrew or the like can be used as shown in FIG.

  The sliding body 22 is slidably attached to the rail 21 by penetrating the rail 21 into the through hole 22a. The fixing member (wing screw) 23 is screwed into a screw hole 22 b formed in the sliding body 22, and the distal end portion is pressed against the rail 21 to fix the sliding body 22.

  Also in the present embodiment, in the steady state, as shown in FIG. 5, the fuel filter 10 and the engine oil filter 13 are set at a position where they vertically overlap each other, and the filter cartridge 11 b of the fuel filter 11 cannot be replaced. Yes. At the time of maintenance, the fixing member (wing screw) 23 is loosened and the engine oil filter 13 is moved along the rail 21 together with the sliding body 22, so that the set position of the fuel filter 10 and the engine oil are changed as shown in FIG. The set position of the filter 11 is shifted in the left-right direction. As a result, a space for allowing the filter cartridge 11b to be attached to and detached from the mechanism portion 11a is formed below the fuel filter 11, and the filter cartridge 11b can be replaced.

  In the above-described embodiment, the case where the fuel filter 10 and the engine oil filter 13 are installed in the fuel tank 9 has been described as an example. However, the gist of the present invention is not limited to this, and the fuel tank 9 is not limited thereto. This can also be applied to the installation of auxiliary equipment.

  Moreover, in the said embodiment, although the case where auxiliary equipment (the fuel filter 10 and the engine oil filter 13) was installed in the fuel tank 9 was demonstrated to the example, the summary of this invention is not limited to this, The present invention can also be applied to installation of auxiliary devices in the equipment room 8.

1 is a side view of a hydraulic excavator according to an embodiment. It is a perspective view which shows the state at the time of the steady state of the fuel tank which concerns on 1st Embodiment. It is a perspective view which shows the state at the time of the maintenance of the fuel tank which concerns on 1st Embodiment. It is a principal part perspective view of the fuel tank which shows the attachment state of a hinge. It is a perspective view which shows the state at the time of the steady state of the fuel tank which concerns on 2nd Embodiment. It is a perspective view which shows the state at the time of the maintenance of the fuel tank which concerns on 2nd Embodiment. It is a principal part perspective view of the fuel tank which shows the attachment state of a rail and a sliding body. It is a perspective view of the fuel tank cap which concerns on a prior art example. It is a perspective view of the fuel tank cap which concerns on a prior art example.

Explanation of symbols

9 Fuel tank 11 Fuel filter 12 Hinge (Auxiliary equipment position changing means)
12b Movable piece 13 Engine oil filter 14a, 14b Bolt / Nut (fixed member)
21 Rail (Auxiliary equipment position changing means)
22 Sliding body (Auxiliary device position changing means)
23 thumbscrew (fixing member)

Claims (3)

In a construction machine provided with a plurality of auxiliary devices on the upper swing body,
At least one of the plurality of auxiliary devices is attached to a predetermined auxiliary device setting unit via auxiliary device position changing means,
During maintenance of a construction machine, the auxiliary device position changing means is moved to a maintenance position other than a normal use position by moving auxiliary devices attached to the predetermined auxiliary device setting unit via the auxiliary device position changing means. The maintenance of the auxiliary devices attached to the predetermined setting part via or other peripheral devices set in the peripheral part thereof,
After completion of the maintenance of the construction machine, the auxiliary equipment attached to the predetermined auxiliary equipment setting unit is moved to the normal use position via the auxiliary equipment position changing means, and the auxiliary equipment position changing means A construction machine characterized in that maintenance of auxiliary equipment attached to a predetermined setting section or other auxiliary equipment set in the periphery thereof is disabled.   The construction according to claim 1, wherein the auxiliary device position changing means includes a hinge having a movable piece to which the auxiliary devices are attached, and a fixing member for fixing the movable piece to the auxiliary device setting section. machine.   2. The auxiliary device position changing means includes a sliding body to which the auxiliary devices are attached, a rail that guides the sliding body, and a fixing member that fixes the sliding body to the rail. The construction machine described.

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