JPH10339169A - Radiator cover of tractor or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a noise coming outside from an intake hole cover by arranging a shielding plate to guide intake air to the radiator side by bypassing between a radiator in a radiator cover, a radiator shroud and the intake hole cover having an intake hole. SOLUTION: A tractor main body 6 is made to travel by driving front and rear wheels 10 and 9 by an engine E. In this case, a radiator 2 and a shielding plate 5 or the like are arranged on the front side of the engine E, and the upper side is covered with a hood 13 and a radiator cover 1, and an intake hole cover 4 of this radiator cover 1 is arranged close to a control seat 7. A radiator fan 14 is also arranged, and heat of the radiator 2 is radiated by outside air by its driving, and the engine E is cooled. At this time, since the shielding plate 5 is arranged, outside air is sucked in the radiator 2 side by bypassing the upper edge and the lower edge of the shielding plate 5, and a wind cutting sound or the like of the radiator fan 14 is prevented from coming out of the intake hole cover 4 or the like, and a noise is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator cover for a tractor or the like and can be used for a combine.

[0002]

In many cases, engines such as tractors are mounted near the cockpit, and if the engine noise is high, the driver's fatigue tends to increase. SUMMARY OF THE INVENTION The present invention reduces the generation of noise in a radiator section of an engine.

[0003]

According to the present invention, a radiator 2 and a radiator shroud 3 in a radiator cover 1 are provided.
A radiator such as a tractor provided with a shielding plate 5 for guiding the intake air to the radiator 2 side by bypassing the intake air between the radiator cover 1 and an intake hole cover 4 having an intake hole for sucking outside air into the radiator cover 1. The structure of the cover is used.

[0004]

The outside air sucked from the intake hole cover 4 of the radiator cover 1 is guided to the radiator 2 side, bypassing the internal shielding plate 5, so that the sound due to the rotation of the radiator fan or the like is generated. Without going directly to the 4 side,
The noise which is partitioned by the shielding plate 5 and which goes out of the intake hole cover 4 to the outside can be reduced.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor body 6 is steered by steering a rear wheel 9 by a steering handle 8 provided on a front side of a cockpit 7, and is driven by driving a front wheel 10 and a rear wheel 9 by an engine E mounted on the rear side. The mower deck 12 can be connected to a front side of the vehicle body 6 via a lift link mechanism 11 so that the grass can be cut.

A radiator 2 is provided in front of the engine E.
The hood 13 and the radiator cover 1 cover the upper side with the shield plate 5 and the like, and the intake hole cover 4 having the intake hole of the radiator cover 1 is arranged close to the cockpit 7 on the front side. Reference numeral 14 denotes a radiator fan, which is configured to ventilate from the front radiator room 15 to the rear engine room 16 through the radiator 2 to radiate the radiator 2 and cool the engine E peripheral surface.

The bonnet 13 and the radiator cover 1 are integrally formed, and the radiator room 15 and the engine room 16 can be opened and closed by rotating the front part up and down around an opening and closing pin 17 at the rear lower end. The engine room 16 and the radiator room 15 are partitioned back and forth by the radiator 2 and the radiator shroud 3 on the rear side of the radiator 2, and are shut off by contact with the outer peripheral edge of the radiator shroud 3 by closing the bonnet 13. .

A front surface of the radiator cover 1 is formed on a front lower inclined surface, and an intake hole cover 4 having an intake hole is provided. An intake hole cover 18 is formed on the left and right side surfaces. In the radiator room 15, a parallel shielding plate 5 is provided at an appropriate distance between the intake hole covers 4 and 18 in front of the radiator 2. The outside air sucked from the intake hole covers 4 and 18 is drawn to the radiator 2 side, bypassing the upper edge and the lower edge of the shielding plate 5. Reference numeral 19 denotes a filter which is detachable on the front of the radiator 2. 2
Reference numeral 0 denotes a floor, 21 denotes a rear edge of the floor 20, and when closed, a front lower edge 22 of the radiator cover 1 is located so that the space between the floor and a bottom plate 23 along the bottom surface of the radiator room 15 can be closed.

When the radiator fan 14 is driven, outside air is sucked into the radiator room 15 from the intake hole covers 4 and 18 of the radiator cover 1, and the upper end of the shielding plate 5,
The air is sucked into the rear radiator 2 bypassing the lower end. The wind noise of the radiator fan 14, the engine driving sound in the engine room 16, and the like are emitted from the engine room 16 to the radiator room 15 via the radiator 2, and this noise is reflected by the front shield plate 5. The noise can be reduced without directly coming out of the intake hole covers 4, 18 and the like of the radiator cover 1.

3 and 4 are different from the above example in that
Lift link mechanism 11 and PTO mounted on vehicle body 6
The interlocking shaft 24, the hitch bracket 25 and the input shaft 26 on the mower deck 12 side of the work machine are provided so as to be opposed to each other in the front-rear direction of the vehicle body 6, and can be simultaneously connected and disconnected by the vehicle body 6 moving forward and backward. This facilitates attachment and detachment of the working machine.

The mower deck 12 has abdominal part mounting form, in which gauge wheels 27 and 28 are arranged in front and rear, and a gear case 29 in which a gear mechanism for interlocking each blade is provided in the upper central part. The hitch bracket 25 is arranged on the side. This hitch bracket 25
Has a pin groove 31 into which the horizontal hitch pin 30 can be fitted from the front side. Of these, the front hitch bracket 25 is provided with a retaining pin 32 for stopping the hitch pin 30 engaged with the pin groove 31. Can be included.

An input shaft 2 is provided in front of the gear case 29.
A coupling 33, which is a shaft coupling, is provided at 6 so as to be resiliently resilient in the axial direction via a spring 34 and to rotate integrally. The lift link mechanism 11 on the vehicle body 6 side includes parallel links 35, 3 provided at the front and rear portions of the vehicle body 6 so as to be vertically rotatable.
6, a hitch link 37 connected between lower ends of the front and rear parallel links 35 and 36, a hitch pin 30 integrated with front and rear portions of the hitch link 37, and a hydraulic cylinder connected to the hitch link 37. The lift arm 38 is moved up and down by expansion and contraction of the lift arm 38 and the like, and the hitch pin 30 and the PTO interlocking shaft 24 can be moved up and down in a parallel state.

The PTO interlocking shaft 24 is provided with a hitch link 3
7 at the front and rear intermediate part, is supported by the bracket 39,
A coupling 40 is provided at the rear end.
Elastic spacer 41 made of an elastic material such as rubber material
Having. The coupling 40 and the gear case 29
By fitting to the coupling 33 on the
The power can be transmitted from the interlocking shaft 24 to the input shaft 26 side.

Further, the PTO interlocking shaft 24 is connected to the P
It is interlocked from the TO shaft 42 via an interlocking shaft 43 having a universal joint, an expansion joint and the like. When the mower deck 12 is placed on the floor surface and the lift link mechanism 11 is moved up and down by operating the vehicle body 6, the front and rear hitch pins 30 are fitted into the pin grooves 31 of the hitch bracket 25. Is engaged with the coupling 33 on the side. By inserting the retaining pin 32 in this state, the mounting of the mower deck 12 is completed. When the mower deck 12 is detached, the hitch pin 30 and the pin groove 31, and the couplings 40 and 33 can be simultaneously separated by moving the vehicle body 6 forward.

In the above example, the case where the hitch pin 30 and the coupling 40 are simultaneously attached and detached by moving the vehicle body 6 back and forth has been described. However, even if the mower deck 12 is moved back and forth, it is relatively the same. is there. FIGS. 5 and 6 show the relationship between a water jacket 45 formed in the cylinder block 44 of the engine E and the oil gallery 46. The oil gallery 46 is formed along the lower end of the water jacket 45. By doing so, the oil for lubricating each part is cooled by the cooling water, so that the oil temperature can be stabilized, and the configuration of the oil gallery can be simplified.

The cylinder block 44 has a plurality of cylinders 47 arranged in the front-rear direction, a crank chamber 48 is formed in a lower part, and a fuel injection pump cam for driving and containing a pump for fuel injection is provided on one front side. A chamber 49 is provided. 50 is
A cam chamber formed on the opposite side of the cam chamber 49 for driving a suction / exhaust valve. A timing gear case 52 is mounted on the front end surface of the cylinder block 44 with a front plate 51 interposed therebetween. An oil pump 53 is provided in the timing gear case 52. The oil gears 54, 5 suck up oil in an oil pan attached to the bottom of the cylinder block 44 and send it to an oil gear 46 disposed in the cylinder block 44.
5 is formed.

An oil gallery 46 in the front-rear direction formed in the cylinder block 44 is formed along a lower portion of a water jacket 45 located at a lower end of a cylinder 47. The front end of the oil gallery 46 is connected to an oil gallery 55 formed in the timing gear case 52.
And the oil groove 56. This oil groove 56
Is a form in which a concave cross section is formed on the front end surface of the cylinder block 44 and the front surface is covered with a front plate 51. The rear end of the oil gallery 55 is connected to the crank chamber 48.
The main oil gallery 58 is formed along the skirt portion 57 on one side in the front-rear direction, and an oil filter 59 is attached to the main oil gallery 58.

In FIG. 7, the difference from the above example is that an oil gallery 46 provided along the lower end of the water jacket 45 is formed of a pipe material and arranged in the water jacket 45. .

[Brief description of the drawings]

FIG. 1 is a side view of a tractor engine unit.

FIG. 2 is a perspective view of the radiator cover.

FIG. 3 is a side view of a mid mower part showing another embodiment.

FIG. 4 is a perspective view showing a partially attached / detached state and a partially exploded view thereof.

FIG. 5 is a front view of an engine block.

FIG. 6 is a side view thereof.

FIG. 7 is a front view of an engine block showing another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 radiator cover 2 radiator 3 radiator shroud 4 intake hole cover 5 shielding plate

Claims (1)

[Claims] A radiator and a radiator shroud in a radiator cover, and the radiator cover.
A radiator cover, such as a tractor, provided with a shielding plate 5 for guiding the intake air to the radiator 2 side by bypassing the intake air between an intake hole cover 4 having an intake hole for sucking outside air into the inside.