JPH0568232U - Walk-type combine engine top cover - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention prevents the entry of dust such as straw debris into the engine room of a walk-behind combine. [Structure] A cover 28 is provided above the engine section 3 below the driving operation section 8 to prevent dust and the like from falling toward the engine 14 side. Space 27 that enables the removal and removal of waste
Was established.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an engine upper cover of a walk-behind combine.

[0002]

[Prior Art]

 Conventionally, a walk-behind combine has an engine section 3 mounted behind a machine frame 2 of a machine body 1, a crawler traveling section 4 is attached to a lower part of the machine body 1 as shown in FIG. A section 6 is provided, and an operation section 8 is provided above the engine section 3 and is provided with levers 7 such as clutch levers for operation and steering. During mowing work or traveling, the operator can operate while confirming the front from the front visual recognition space 9 on the upper right side or the upper right outside of the engine unit 3 and the operation unit 8. The operation portion 8 is provided with a cover 10 as shown in FIGS. 2 to 4, and the cover 10 is provided with slit-shaped lever guides 10a through which the above-mentioned levers 7 are inserted. Reference numeral 15 denotes a handle frame which is formed in a U shape and protrudes behind the operation portion 8.

[0003]

[Problems to be solved by the device]

 Due to restrictions such as miniaturization, the above walk-type combine has a large amount of dust and dirt flying to the operating section 8, while the cover 10 of the operating section 8 has a slit shape penetrating inside. Since the lever guide 10a composed of the long hole is formed, it is unavoidable that dust and the like fall into the engine room, which causes an adverse effect such as a fire due to ignition in the engine room. The present invention intends to provide an engine upper cover that solves these problems.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is one in which an engine 14 is mounted below a body operating portion 8. A cover 28 is provided below the operating portion to cover an upper portion of the engine 14, and an upper portion of the cover 28 is provided above the cover 28. Is characterized in that a space 27 is formed in which straw dust and the like can be removed from the outside.

[0005]

[Action]

 Garbage such as straw debris that has fallen from the top and sides of the operation and control section 8 of the machine body 1 remains on the upper surface of the cover 28, and the dust on the cover 28 is confirmed from the open end or opening around the space 27. It is removed from the outside and removed. As a result, refuse from the operating unit 28 does not fall into the engine room, and the adverse effect on the engine and the like can be prevented.

[0006]

【Example】

 The drawing shows one embodiment of the present invention, in which an engine 14 provided with a recoil pulley 12, a cooling air introduction fan 13 (see FIG. 5) and the like is housed in the engine cover 11 of the engine part 3. The lower part of the right outer cover 11a is open, a dustproof net 16 is attached to the rear end face side, and air is taken in as shown by arrows A and B, and it passes through the inside of the recoil cover 17 and is cooled by the cooling air introduction fan 13 to drive the engine. It is introduced to the 14 side as indicated by arrows C and D, and is further introduced and discharged to the engine head side such as the engine air-cooling section and the exhaust side as indicated by arrows E and F.

A scraper 19 is mounted in close proximity to the side surface of the recoil pulley 12 having a large number of radial protrusions 18 on the outer surface side to cut off dust such as straw dust sucked from the outside. It has a structure that prevents large debris from being sucked into the engine 14 side. An air cleaner 22 is provided behind the engine 14 at a position partitioned from the engine 14 side by a partition wall 21 so that the air cleaner 22 does not absorb high temperature exhaust gas on the engine side.

The exhaust pipe 23 from the engine is guided rearward on the opposite side of the front view space 9 (inside the fuselage) above the outer side of the engine part 3 and extends downward, and its lower end is located below the rear part of the engine 14. It is connected to a muffler 24 that is horizontally installed in the space inclined rearward. The upper portion of the exhaust pipe 23 is covered so as to be surrounded by the air guide plate 26 fixed to the engine 14 and other covers or frames, and as shown by arrows G and H, the engine cooling exhaust air is exhausted. The exhaust pipe 23 is further cooled by guiding the exhaust gas and exhausted toward the lower rear. An upper cover 28 and an upper side cover which cover the upper portion of the engine 14 by partitioning the space between the upper portion of the engine portion 3 and the operating portion 8 so as to form a space 27 above the air guide plate 26. 29 is provided so that the upper surface of the upper cover 28 can receive dust such as straw dust that has fallen from the operation portion 8 side, and the space 27 has an open end at the rear and inner sides, and It has a mechanism that can be easily removed. Further, the upper cover 28 is provided at the lowermost position where it does not come into contact with the swinging fulcrum of the lever 7 and the wires and rods interlocked therewith, and extends from the front and rear ends of the lever guide 10a of the operating portion 8. The space 27 has a size and structure that allows external confirmation and removal of dust and the like.

The outer periphery of the downward portion of the exhaust pipe 23 is surrounded by the exhaust cover 31 which is attached downward from the rear end left side of the upper cover 28 (the non-visual space 9 side) in a U-shape on the rear side and the left and right sides. Therefore, the cooling exhaust air passes through the inside thereof and is discharged downward from the lower open end side as shown by arrows I, J, and K to the outside. On the other hand, the muffler 24 is surrounded by a muffler cover 32 that is a bottom open type that extends over the entire width so that the high temperature air due to the heat radiation is not discharged to the air cleaner 22 side or the upper part, and the exhaust pipe (tail pipe) 33 from the muffler 24 is forward. A tail pipe 34 is fixedly provided on the body frame side so as to open downward and form a double pipe so as to surround the exhaust pipe 33. The air that has cooled the muffler 24 is discharged to the outside from the lower part of the muffler cover 32, and the hot air around the muffler 24 in the sealed state is discharged from the tail pipe 34 by suction from the rear opening end of the tail pipe 34, and The hot air in the cover 32 is discharged.

Due to the exhaust structure in the engine portion 3 as described above, the engine cooling air can also cool the exhaust pipe 23 and the muffler 24 together, and the recoil starter and the air cleaner 22 generate high-heat exhaust air. Since it is blocked by partition walls and covers from the road, the effect of high temperature exhaust air on them is prevented.

An output pulley 36 is rotatably supported on a PTO shaft on the output side of the engine 14, and an inside of the pulley 36 is bent to have an L-shaped section for attaching a belt guide (not shown) to the pulley 3b. The belt guide mounting plate 37 is attached to guide the exhaust air downward in the engine room with the belt guide.

Further, between the support beam 38, which is erected so as to fix and support the handle frame 15 on the machine body frame 2, and the end surface of the L-shaped bent end of the belt guide mounting plate 37, a protection beam is provided. A vibration bolt 39 is fixedly mounted in the front-rear direction so as to be adjustable, and a vibration-proof rubber 41 is mounted on the bolt side between the tip of the vibration-proof bolt 39 and the bent end surface of the belt guide mounting plate 37. It is inserted and has a structure that prevents vibration of the engine 14.

[0013]

[Effect of the device]

 Since the present invention is configured as described above, it is possible to obtain an engine dust-proof mechanism having a simple structure at a low cost without providing a complicated mechanism in the body operation section that is difficult to take dust-proof measures. Since the structure is simple, it has the advantage that it can be easily attached and detached and maintained.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a walk-behind combine.

FIG. 2 is an outside view of the engine section of the walk-behind combine.

FIG. 3 is a rear view of the engine section.

FIG. 4 is an inner side view of the engine section.

FIG. 5 is a plan sectional view of a recoil starter in the engine section of the same.

[Explanation of symbols]

 8 Operation part 9 Front view space 14 Engine 23 Exhaust pipe 24 Muffler 27 Space 28 Cover

Claims (1)

[Scope of utility model registration request] 1. An engine (1) is provided below an airframe operating section (8).
4), the cover (28) for covering the upper part of the engine (14) is provided below the operating portion,
An engine upper cover of a walk-type combine having a space (27) formed above the cover (28) for removing straw waste and the like from the outside.