CONSTRUCTION MACHINE

• US 20160138242A1
• Filed: 07/08/2013
• Published: 05/19/2016
• Est. Priority Date: 07/08/2013
• Status: Active Grant

• Current Assignee: Volvo Construction Equipment AB (Volvo AB)
• Original Assignee: Soo-Bong Hwang, Volvo Construction Equipment AB (Volvo AB)
• Inventors: HWANG, Soo-Bong
• Granted Patent: US 9,663,919 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60K 15/063 Arrangement of tanks
• CPC Class Codes: B60K 15/067 Mounting of tanks
• CPC Class Codes: B60K 2015/0638 the fuel tank is arranged in the rear of the vehicle
• CPC Class Codes: B60Y 2200/412 Excavators
• CPC Class Codes: E02F 3/32 working downwardly and towards the machine, e.g. with backhoes
• CPC Class Codes: E02F 9/08 Superstructures; Supports for superstructures arrangements for travelling gear, e.g. undercarriages for wheels, crawlers, caterpillars E02F9/02; for motor vehicles B62D25/00, B62D33/00
• CPC Class Codes: E02F 9/0833 Improving access, e.g. for maintenance, steps for improving driver's access, handrails
• CPC Class Codes: E02F 9/0866 Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
• CPC Class Codes: E02F 9/0883 Tanks, e.g. oil tank, urea tank, fuel tank for vehicles in general B60K15/00
• CPC Class Codes: E02F 9/16 Cabins, platforms, or the like, for drivers for motor vehicles in general B62D33/06, for cranes B66C13/54
• CPC Class Codes: E02F 9/18 Counterweights for cranes B66C23/72, for tractors B62D49/085

Abstract

Provided is a construction machine in which a fuel tank is mounted to enable the machine to work for a long time through one fueling. The construction machine includes a lower driving structure; an upper frame mounted on the lower driving structure to horizontally swivel; a cab mounted on one side of an upper surface of the upper frame; a mounting portion formed to extend from a rearmost side of a center frame of the upper frame; a counterweight detachably installed on the mounting portion through a fastening member, and having a storage space portion of which a front surface and an upper surface are opened; a fuel tank coupled to the storage space portion and detachably fixed to the mounting portion through another fastening member that fixes the counterweight to the mounting portion in order to separate the fuel tank from the counterweight in a state where the counterweight that is coupled to the fuel tank is mounted on the mounting portion; an engine room mounted in front of the fuel tank of the upper frame; and a hydraulic fluid tank installed on one side of a front portion of the engine room.

Claims

1. A construction machine comprising:

a lower driving structure;

an upper frame mounted on the lower driving structure to horizontally swivel;

a cab mounted on one side of an upper surface of the upper frame;

a mounting portion formed to extend from a rearmost side of a center frame of the upper frame;

a counterweight detachably installed on the mounting portion through a fastening member, and having a storage space portion of which a front surface and an upper surface are opened;

a fuel tank coupled to the storage space portion and detachably fixed to the mounting portion through another fastening member that fixes the counterweight to the mounting portion in order to separate the fuel tank from the counterweight in a state where the counterweight that is coupled to the fuel tank is mounted on the mounting portion;

an engine room mounted in front of the fuel tank of the upper frame; and

a hydraulic fluid tank installed on one side of a front portion of the engine room.

2. The construction machine according to claim 1, further comprising a wing-shaped protection member formed to project from left and right sides of the counterweight and to surround an outer surface of the fuel tank that is coupled to the storage space portion in order to prevent the fuel tank from coming in contact with an external object.

3. The construction machine according to claim 1, wherein a fuel injection port of the fuel tank is formed on an opposite side of a muffler of the engine room.

4. The construction machine according to claim 1, further comprising a maintenance platform installed on a side surface of the upper frame and formed to extend up to a rear side of one side surface of the counterweight for boarding during fuel injection into the fuel tank.

5. The construction machine according to claim 4, further comprising a hand rail installed on one side of an upper surface of the counterweight to be grasped during the fuel injection into the fuel tank.

6. The construction machine according to claim 1, wherein the counterweight comprises a body portion filled with predetermined inner fillers to maintain a predetermined weight, and a storage portion formed at left and right ends of the body portion and having a vacancy that is not filled with the inner fillers.

7. The construction machine according to claim 6, further comprising a fuel injection pump installed on one side of the storage portion to inject fuel into the fuel tank.

8. The construction machine according to claim 1, further comprising a storage box installed in front of the hydraulic fluid tank of the upper frame.

9. The construction machine according to claim 1, further comprising a bracket formed on the counterweight and coupled to a fastening member to install the counterweight coupled to the fuel tank on the mounting portion.

10. A construction machine comprising:

a lower driving structure;

an upper frame mounted on the lower driving structure to horizontally swivel;

a cab mounted on one side of an upper surface of the upper frame;

a mounting portion formed to extend from a rearmost side of a center frame of the upper frame;

a counterweight detachably installed on the mounting portion through a fastening member, and having a storage space portion of which a front surface and an upper surface are opened;

a fuel tank coupled to the storage space portion, detachably fixed to the mounting portion through another fastening member, and detachably fixed to a predetermined position of the counterweight through still another fastening member in order to separate the fuel tank from the counterweight in a state where the counterweight that is coupled to the fuel tank is mounted on the mounting portion;

an engine room mounted in front of the fuel tank of the upper frame; and

a hydraulic fluid tank installed on one side of a front portion of the engine room.

11. The construction machine according to claim 10, wherein the still another fastening member for detachably fixing the fuel tank to the counterweight fixes the fuel tank to the counterweight to at least one of left and right side surfaces, an upper surface, and a bottom surface of the counterweight.