Classifications

• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
  • E02F9/08—Superstructures; Supports for superstructures
  • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
  • E02F9/0875—Arrangement of valve arrangements on superstructures
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
  • B60R13/08—Insulating elements, e.g. for sound insulation
  • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
  • B60R16/08—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for fluid
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
  • E02F9/20—Drives; Control devices
  • E02F9/22—Hydraulic or pneumatic drives
  • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
  • E02F9/2267—Valves or distributors
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
  • F02B77/00—Component parts, details or accessories, not otherwise provided for
  • F02B77/11—Thermal or acoustic insulation
  • F02B77/13—Acoustic insulation

Definitions

• the present invention relates to a soundproofing and heatproofing device for an operation valve of a hydraulic excavator and the like, and particularly to a soundproofing and heatproofing device for a hydraulically operated valve that can be mounted on an engine in an engine room. .
• a hydraulic excavator In a conventional hydraulic excavator, etc., generally, an engine in which a hydraulic pump is integrated with an engine is installed inside the engine, and the oil discharged from the hydraulic pump is discharged.
• the operating valve to be switched can be used in the exterior installed separately from the engine room, or in the structure installed under the floor frame. Yes.
• the present invention arranges an operation valve in an engine norm, and further mounts the operation valve on the engine, thereby reducing the power consumption of the engine.
• the centralized arrangement of the components and the power bar on the exterior makes it possible to reduce the hydraulic noise and the hood around the operator.
• An object of the present invention is to provide a soundproof and heat-insulating device for a hydraulically operated valve that can perform the operation. Disclosure of the invention
• an engine in which a hydraulic pump is integrally mounted is mounted on a vehicle body frame via an elastic body in an engine room of a hydraulic excavator or the like.
• an operating valve for switching oil discharge of the hydraulic pump is attached to a bracket attached to the engine, and the engine room is externally attached to the bracket. It is sealed.
• the exterior of this engine room may be fitted with sound absorbing or heat insulating material on the inside.
• FIG. 1 is a side view showing a soundproofing device for a hydraulically operated valve according to an embodiment of the present invention
• FIG. 2 is a rear view of FIG. BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail with reference to an embodiment shown in FIGS. 1 and 2.
• FIG. 1 is a side view showing a soundproofing device for a hydraulically operated valve according to an embodiment of the present invention
• FIG. 2 is a rear view of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
• the soundproof and heat insulating device of the hydraulically operated valve is as follows.
• Hydraulic pump 3 is installed in engine room 1 of the hydraulic excavator.
• the engine 2 that is integrally mounted is attached to the body frame 5 via an elastic body, for example, a rubber mount 4, and attached to the engine 2.
• the operating valves 7, 8 for switching the discharge oil of the hydraulic pump 3 are attached to the bracket 6, and the engine room 1 is attached to the exterior 9, 10. It is made up of a cover and a cover.
• the engine 2 is attached to the vehicle body frame 5 by the rubber mount 4 at four locations in front, rear, left and right.
• the flywheel nozing 11 of the engine 2 is provided with a plurality of mounting bolt holes 12 at the upper part thereof, and
• the cut 6 is attached to the hydraulic pump 3 located in the center so as not to be disturbed.
• the brackets 6 are provided with operating valves 7 and 8, respectively, which guide oil discharged from the hydraulic pump 3 to each actuator. .
• the operation valves 7 and 8 are mounted on the engine 2 having a large mass, and the engine 2 is connected to the vehicle body frame via the rubber mount 4. The hydraulic vibration is hardly transmitted to the vehicle frame 5 because it is mounted on the vehicle frame 5.
• the front side of the engine room 1 is a cabin 13 as an operator's cab, and at the boundary, an exterior 9 is provided, and the engine room is installed. The noise and heat in the room 1 are not transmitted to the cabinet 13.
• An exterior 10 is provided on the upper and rear sides of the engine room 1, and is freely opened and closed by a hinge 14 provided on an upper portion of the exterior 9. It is. Therefore, in order to prevent the transmission of noise and heat, and to inspect the engine 2, the hydraulic pump 3, the hydraulic control valve 7, etc., open the exterior 10. I can do it.
• the radiator and oil cooler cooling fan 18 draws air in from the vehicle body right inlet 19, The heat generated by hydraulic pressure is radiated to the outside of the engine room 1 by discharging from the lower left outlet 17 of the vehicle body.
• a rubber hose group 15a from the operating valves 7 and 8 to motors (not shown) and to work implements and the like.
• the rubber hose group 15b that returns to the control valves 7 and 8 is connected to the passage holes 16a and 16b provided in the engine room 1 through the engine holes. It is located in the main room, from where it is led to each actuating unit where various operations are performed.
• the operating valves 7 and 8 including the engine 2 and the hydraulic pump 3 are almost sealed in the engine room 1 ⁇ . Become . Therefore, the surroundings of the operator are not heated by the heat of the hydraulic pressure of these devices, and the hydraulic noise is also prevented. In addition, the propagation of hydraulic vibration is prevented, so that the habitability of the operator is improved.
• INDUSTRIAL APPLICABILITY The present invention can improve the livability of an operator by reducing the temperature and hydraulic noise around the operator and reducing hydraulic vibration. This is useful as a sound and heat insulator for hydraulic operating valves.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Acoustics & Sound (AREA)
• Physics & Mathematics (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Mining & Mineral Resources (AREA)
• Combustion & Propulsion (AREA)
• Chemical & Material Sciences (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
• Component Parts Of Construction Machinery (AREA)
• Details Of Valves (AREA)
• Operation Control Of Excavators (AREA)
• Superstructure Of Vehicle (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=14967535

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (1)

Citations (3)

Family Cites Families (1)

• 1989
  • 1989-10-31 JP JP12774189U patent/JPH0364878U/ja active Pending
• 1990
  • 1990-10-19 WO PCT/JP1990/001349 patent/WO1991006465A1/ja active IP Right Grant
  • 1990-10-19 EP EP90915177A patent/EP0499640B1/en not_active Expired - Lifetime
  • 1990-10-19 DE DE69015648T patent/DE69015648T2/de not_active Expired - Fee Related

Patent Citations (3)

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