Construction machine
An excavation work machine includes a hydraulic oil tank provided in a tank chamber and storing hydraulic oil that actuates a plurality of hydraulic actuators, a control valve controlling a flow of pressure oil supplied from the hydraulic oil tank to each of the hydraulic actuators, a plurality of hydraulic hoses extending from the control valve and communicatively connected to each of the hydraulic actuators, and a fuel tank that is provided in a front portion in the tank chamber covered with a hood provided to be openable and closable and stores fuel to be supplied to an engine. The plurality of hydraulic hoses are arranged along a rear surface portion of the hydraulic oil tank, and a fuel supply pump is provided in a space portion formed above a step portion in a front portion of the tank chamber.
1 . A construction machine comprising:
a hydraulic oil tank provided in a tank chamber and configured to store hydraulic oil, the hydraulic oil configured to actuate a plurality of hydraulic actuators;
a control valve configured to control a flow of pressure oil supplied from the hydraulic oil tank to each of the hydraulic actuators; and
a plurality of hydraulic hoses extending from the control valve and communicatively connected to each of the hydraulic actuators,
wherein the plurality of hydraulic hoses are arranged along a side surface portion of the hydraulic oil tank, and
wherein at least one hydraulic hose of the plurality of hydraulic hoses is directed laterally and rearward from a first lateral side of the control valve to a second lateral side of the control valve.
2 . The construction machine according to claim 1 , further comprising a driver's seat provided on a lateral side of the tank chamber, wherein the control valve is disposed on a side opposite to the driver's seat side with respect to the hydraulic oil tank.
3 . The construction machine according to claim 1 , wherein the side surface portion of the hydraulic oil tank is a side surface portion on a rear side.
4 . The construction machine according to claim 1 , wherein one end side of each of the hydraulic hoses is connected to a side surface portion on a right side of the control valve via a connection member, and the connection member is configured such that the hydraulic hoses extend rearward from the side surface portion on the right side.
5 . The construction machine according to claim 1 , wherein a holding section configured to hold an intermediate portion of the hydraulic hoses against the side surface portion of the hydraulic oil tank is provided on the side surface portion of the hydraulic oil tank.
6 . The construction machine according to claim 5 , wherein the holding section comprises one or more vertically-spaced holding sections.
7 . The construction machine according to claim 1 , further comprising a fuel tank disposed in front of the hydraulic oil tank, wherein an equipment attachment section for attaching hydraulic equipment provided to a path of hydraulic oil stored in the hydraulic oil tank or a path of fuel stored in the fuel tank is provided on a right side of the fuel tank.
8 . The construction machine according to claim 7 , wherein:
the tank chamber is configured to be covered with a cover member, the cover member configured to be openable and closable, and
the construction machine further comprises an operation pattern switching unit that is provided on a front side of the fuel tank in the tank chamber and is configured to switch a pattern of hydraulic pressure input to the control valve in response to an operation of an operation unit provided near the driver's seat to thereby switch an operation pattern of the operation unit, and the operation pattern switching unit is disposed at a position where a switching operation can be performed in a state where the cover member is opened.
9 . A construction machine comprising:
a hydraulic oil tank provided in a tank chamber and configured to store hydraulic oil, the hydraulic oil configured to actuate a plurality of hydraulic actuators;
a control valve configured to control a flow of pressure oil supplied from the hydraulic oil tank to each of the hydraulic actuators;
a plurality of hydraulic hoses extending from the control valve and communicatively connected to each of the hydraulic actuators; and
a tank provided in a front portion in a tank chamber that is configured to be covered with a cover member, the cover member configured to be openable and closable,
wherein:
the plurality of hydraulic hoses are arranged along a side surface portion of the hydraulic oil tank,
at least one hydraulic hose of the plurality of hydraulic hoses is directed laterally and rearward from a first lateral side of the control valve to a second lateral side of the control valve,
the tank has a step portion in a front portion, and
a functional component is provided in a space portion formed above the step portion in the tank chamber.
10 . The construction machine according to claim 9 , wherein the space portion is defined by a rear side surface portion, a side surface portion, and a bottom surface portion.
11 . The construction machine according to claim 10 , wherein:
the tank is a fuel tank that is configured to store fuel to be supplied to a drive source,
the functional component is a fuel supply pump configured to supply the fuel to the fuel tank, and
an operation switch configured to turn on and off an actuation of the fuel supply pump is provided on the rear side surface portion of the step portion.
12 . The construction machine according to claim 11 , wherein a fuel gauge configured to indicate an amount of fuel in the fuel tank is provided on the rear side surface portion of the step portion.
13 . The construction machine according to claim 11 , wherein a hose accommodating portion that is configured to accommodate a suction hose for fuel suction by a fuel supply pump is provided in the tank chamber.
14 . The construction machine according to claim 9 , further comprising a swivel frame on which the tank is installed, wherein the functional component is fixed to a support member attached to the swivel frame.
15 . The construction machine according to claim 14 , further comprising a fixing member configured to selectively fix the tank to the swivel frame, wherein the tank is provided and configured to be selectively positioned with respect to the swivel frame based on operation of the fixing member.
16 . The construction machine according to claim 15 , further comprising a second tank provided in the tank chamber and disposed behind the tank, wherein the second tank is selectively fixed via the fixing member.
17 . A construction machine comprising:
a hydraulic oil tank provided in a tank chamber and configured to store hydraulic oil, the hydraulic oil configured to actuate a plurality of hydraulic actuators;
a control valve configured to control a flow of pressure oil supplied from the hydraulic oil tank to each of the hydraulic actuators;
a plurality of hydraulic hoses extending from the control valve and communicatively connected to each of the hydraulic actuators;
a driver's seat provided on a lateral side of the tank chamber; and
a level gauge that is provided on the driver's seat side of the tank chamber and that is configured to indicate an amount of the hydraulic oil in the hydraulic oil tank, and
wherein the plurality of hydraulic hoses are arranged along a side surface portion of the hydraulic oil tank, and
wherein at least one hydraulic hose of the plurality of hydraulic hoses is directed laterally and rearward from a first lateral side of the control valve to a second lateral side of the control valve.
18 . The construction machine according to claim 17 , further comprising a swivel frame provided with the tank chamber and the driver's seat, wherein the level gauge is disposed above a front portion of the swivel frame.
19 . The construction machine according to claim 17 , wherein the level gauge is communicatively connected to the hydraulic oil tank via a connection hose.
20 . The construction machine according to claim 17 , wherein:
the tank chamber is configured to be covered with a cover member, the cover member configured to be openable and closable,
the construction machine further comprises another level gauge that is provided in the tank chamber and indicates an amount of the hydraulic oil in the hydraulic oil tank, and
the other level gauge is disposed at a position where the other level gauge can be visually observed in a state where the cover member is opened.