WORK VEHICLE, AND POSITION ADJUSTMENT METHOD OF MOVABLE PORTION OF WORK VEHICLE

• US 20180266303A1
• Filed: 12/28/2016
• Published: 09/20/2018
• Est. Priority Date: 12/28/2016
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Miyamoto, Hirofumi
• Granted Patent: US 10,480,390 B2
• Time in Patent Office: Days
• CPC Class Codes: B60K 11/02 with liquid cooling
• CPC Class Codes: B60K 11/04 Arrangement or mounting of radiators, radiator shutters, or radiator blinds B60K11/085 takes precedence
• CPC Class Codes: B60Y 2200/417 Articulated frame vehicles
• CPC Class Codes: E02F 9/0808 Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures for disposition of specific components, E02F9/0858
• 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 9/0891 Lids or bonnets or doors or details thereof doors for cabins E02F9/163 takes precedence; for motor vehicles B62D25/10
• CPC Class Codes: F01P 2070/50 mounting fans to heat-exchangers
• CPC Class Codes: F01P 5/02 Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
• CPC Class Codes: F01P 5/06 Guiding or ducting air to, or from, ducted fans
• CPC Class Codes: F04D 19/002 Axial flow fans
• CPC Class Codes: F04D 25/04 the pump being fluid-driven pumps driven by exhaust gases F02B37/00, F02B39/00; turbochargers F02C6/12
• CPC Class Codes: F04D 29/601 specially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/622 Adjusting the clearances between rotary and stationary parts
• CPC Class Codes: F04D 29/703 specially for fans, e.g. fan guards

Abstract

A work vehicle includes a blower unit rotatably supported to a vehicle body between a closed position and an open position, and a position adjustment portion configured to adjust a vertical position of the blower unit when the blower unit is at the closed position. The position adjustment portion includes a first plate that is provided on the vehicle body and includes a first through portion vertically penetrating, a second plate that is provided on the blower unit, vertically penetrates, and includes a second through portion communicating with the first through portion from below when the blower unit is at the closed position, and an adjustment bolt that includes a shaft portion inserted into the first through portion and the second through portion.

Claims

1. A work vehicle, comprising:

a vehicle body that includes an opening portion communicating between inside and outside;

a movable portion that is rotatably supported to the vehicle body between a closed position at which the opening portion is closed and an open position at which the opening portion is open; and

a position adjustment portion that is configured to adjust a vertical position of the movable portion when the movable portion is at the closed position,

wherein the position adjustment portion includes

a first plate that is provided on the vehicle body and includes a first through portion which vertically penetrates,

a second plate that is provided on the movable portion, vertically penetrates, and includes a second through portion communicating with the first through portion from below when the movable portion is at the closed position, and

an adjustment bolt that includes a shaft portion inserted into the first through portion and the second through portion.

2. The work vehicle according to claim 1,

wherein the second through portion has a female screw on an inner peripheral surface of the second through portion,

wherein the shaft portion includes a male screw on an outer peripheral surface of the shaft portion, the male screw being capable of being fastened to the female screw, and

wherein the adjustment bolt further includes a head portion which is provided on an upper end of the shaft portion and abuts on an upper surface of the first plate.

3. The work vehicle according to claim 2,

wherein the first through portion is vertically opened toward a direction in which the movable portion is rotated to the open position.

4. The work vehicle according to claim 1,

wherein the first through portion has a female screw on an inner peripheral surface of the first through portion,

wherein the shaft portion includes a male screw on an outer peripheral surface of the shaft portion, the male screw being capable of being fastened to the female screw, and

wherein the adjustment bolt further includes a head portion which is provided on a lower end of the shaft portion and abuts on a lower surface of the second plate.

5. The work vehicle according to claim 4,

wherein the second through portion is vertically opened toward a direction in which the movable portion is rotated to the closed position.

6. The work vehicle according to claim 1,

wherein the first plate includes a long hole that vertically penetrates and has a horizontal direction as a longitudinal direction,

wherein the position adjustment portion further includes a positioning bolt that fixes the first plate to the vehicle body via the long hole.

7. The work vehicle according to claim 6,

wherein a longitudinal direction of the long hole is a horizontal direction that intersects a rotation direction of the movable portion.

8. The work vehicle according to claim 1,

wherein the vehicle body includes a vehicle-side fixation hole that penetrates in the horizontal direction,

wherein the movable portion includes a movable-side through-hole that penetrates in the horizontal direction and corresponds to the vehicle-side fixation hole when the movable portion is at the closed position, and

wherein a fixing bolt fixing the movable portion to the vehicle body via the vehicle-side fixation hole and the movable-side through-hole is further provided.

9. The work vehicle according to claim 1,

wherein the vehicle body includes a heat exchange room,

wherein the opening portion is formed on the rear side of the heat exchange room,

wherein a cooling unit that is provided inside the heat exchange room and has a rear surface facing the rear side is further provided,

wherein the movable portion is a blower unit that includes a fan rotationally driven and a shroud covering the fan from the outer peripheral side,

wherein the closed position is a position at which the blower unit faces a rear surface of the cooing unit, and

wherein the open position is a position at which the blower unit exposes the rear surface of the cooling unit.

11. The work vehicle according to claim 2,

wherein the first plate includes a long hole that vertically penetrates and has a horizontal direction as a longitudinal direction,

wherein the position adjustment portion further includes a positioning bolt that fixes the first plate to the vehicle body via the long hole.

12. The work vehicle according to claim 3,

wherein the first plate includes a long hole that vertically penetrates and has a horizontal direction as a longitudinal direction,

wherein the position adjustment portion further includes a positioning bolt that fixes the first plate to the vehicle body via the long hole.

13. The work vehicle according to claim 4,

wherein the first plate includes a long hole that vertically penetrates and has a horizontal direction as a longitudinal direction,

wherein the position adjustment portion further includes a positioning bolt that fixes the first plate to the vehicle body via the long hole.

14. The work vehicle according to claim 5,

wherein the first plate includes a long hole that vertically penetrates and has a horizontal direction as a longitudinal direction,

wherein the position adjustment portion further includes a positioning bolt that fixes the first plate to the vehicle body via the long hole.

15. The work vehicle according to claim 2,

wherein the vehicle body includes a vehicle-side fixation hole that penetrates in the horizontal direction,

wherein the movable portion includes a movable-side through-hole that penetrates in the horizontal direction and corresponds to the vehicle-side fixation hole when the movable portion is at the closed position, and

wherein a fixing bolt fixing the movable portion to the vehicle body via the vehicle-side fixation hole and the movable-side through-hole is further provided.

16. The work vehicle according to claim 3,

wherein the vehicle body includes a vehicle-side fixation hole that penetrates in the horizontal direction,

wherein the movable portion includes a movable-side through-hole that penetrates in the horizontal direction and corresponds to the vehicle-side fixation hole when the movable portion is at the closed position, and

wherein a fixing bolt fixing the movable portion to the vehicle body via the vehicle-side fixation hole and the movable-side through-hole is further provided.

17. The work vehicle according to claim 4,

wherein the vehicle body includes a vehicle-side fixation hole that penetrates in the horizontal direction,

wherein the movable portion includes a movable-side through-hole that penetrates in the horizontal direction and corresponds to the vehicle-side fixation hole when the movable portion is at the closed position, and

wherein a fixing bolt fixing the movable portion to the vehicle body via the vehicle-side fixation hole and the movable-side through-hole is further provided.

18. The work vehicle according to claim 2,

wherein the vehicle body includes a heat exchange room,

wherein the opening portion is formed on the rear side of the heat exchange room,

wherein a cooling unit that is provided inside the heat exchange room and has a rear surface facing the rear side is further provided,

wherein the movable portion is a blower unit that includes a fan rotationally driven and a shroud covering the fan from the outer peripheral side,

wherein the closed position is a position at which the blower unit faces a rear surface of the cooing unit, and

wherein the open position is a position at which the blower unit exposes the rear surface of the cooling unit.

19. The work vehicle according to claim 3,

wherein the vehicle body includes a heat exchange room,

wherein the opening portion is formed on the rear side of the heat exchange room,

wherein a cooling unit that is provided inside the heat exchange room and has a rear surface facing the rear side is further provided,

wherein the movable portion is a blower unit that includes a fan rotationally driven and a shroud covering the fan from the outer peripheral side,

wherein the closed position is a position at which the blower unit faces a rear surface of the cooing unit, and

wherein the open position is a position at which the blower unit exposes the rear surface of the cooling unit.

20. The work vehicle according to claim 4,

wherein the vehicle body includes a heat exchange room,

wherein the opening portion is formed on the rear side of the heat exchange room,

wherein a cooling unit that is provided inside the heat exchange room and has a rear surface facing the rear side is further provided,

wherein the movable portion is a blower unit that includes a fan rotationally driven and a shroud covering the fan from the outer peripheral side,

wherein the closed position is a position at which the blower unit faces a rear surface of the cooing unit, and

wherein the open position is a position at which the blower unit exposes the rear surface of the cooling unit.

10. A position adjustment method of a movable portion of a work vehicle,

the work vehicle including

a vehicle body that includes an opening portion communicating between inside and outside,

a movable portion that is rotatably supported to the vehicle body between a closed position at which the opening portion is closed and an open position at which the opening portion is open, and

a position adjustment portion that is configured to adjust a vertical position of the movable portion when the movable portion is at the closed position,

wherein the position adjustment portion including

a first plate that is provided on the vehicle body and includes a first through portion which vertically penetrates,

a second plate that is provided on the movable portion, vertically penetrates, and includes a second through portion communicating with the first through portion from below when the movable portion is at the closed position, and

an adjustment bolt that includes a shaft portion inserted into the first through portion and the second through portion, and

wherein the method comprising:

a positioning process of coinciding a horizontal position of the second through portion with a horizontal position of the first through portion by rotating the movable portion; and

a lifting process of allowing the second plate to be close to the first plate by inserting the shaft portion of the adjustment bolt into the first through portion and the second through portion and fastening the adjustment bolt after the positioning process.