JP2013070629A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester capable of securely feeding clean air to an engine with a simple constitution, while decreasing frequent maintenance of an air cleaner.SOLUTION: The combine harvester constituted by arranging a steering seat (11) where a worker sits and operates steering devices, on an engine compartment (7) housing an engine (21) as a motor unit, and a radiator (22) arranged at its outside, is provided with a hollow frame (23) behind the steering seat (11) and at the upper part of the engine compartment (7) to mount the air cleaner (14) for feeding the air to the engine (21), is provided with a radiator cover (25) including a dust prevention opening (25a) for introducing outside air, while covering the machine-body outside part of the air cleaner (14) and the radiator (22), opening one end of the hollow frame (23) as facing the dust prevention opening (25a) and also communicating the hollow frame (23) as an outside air-guiding duct with the air cleaner (14).

Description

  The present invention relates to a combine equipped with an air cleaner for intake of an engine.

  As shown in Patent Document 1 (FIG. 4), a combine including an air cleaner for engine intake is known. This combine air cleaner is located on the rear side of the control seat above the engine room, and is equipped with an air intake duct that opens to the opening with a dust-proof net on the radiator cover that covers the outer surface of the engine room. Since outside air can be introduced without receiving dust that soars along the outside of the machine body, the frequency of troublesome maintenance work for clogging of the filter can be kept low.

  However, a complicated duct penetrating structure is required between the air cleaner and the lower engine room, which includes an intake duct that guides outside air and an air supply duct that supplies clean outside air to the engine. There has been a problem that the cost increases due to the increase in the number of points and assembly man-hours, and the maintenance load is caused.

JP 2010-161996 A

  The problem to be solved is to provide a combine that can ensure clean air supply to the engine with a simple configuration while suppressing frequent maintenance of the air cleaner.

  The invention according to claim 1 is an engine that houses a control seat (11) for an operator to sit and operate a control instrument, an engine (21) that is a prime mover, and a radiator (22) that is arranged outside the engine (21). In the combine in which the room (7) is arranged vertically, a hollow frame (23) is provided at a position behind the control seat (11) in the upper part of the engine room (7), and the engine (21) is provided in the hollow frame (23). An air cleaner (14) for supplying air is attached, and a radiator cover (25) having a dustproof opening (25a) for introducing outside air while covering the air cleaner (14) and the outer side of the radiator (22) is provided. The hollow frame (23) is opened at a part of the hollow frame (23) facing the dustproof opening (25a), and the hollow frame (23) is connected to the outside air guide duct And combine, characterized in that communicating with the air cleaner (14) as a.

  According to a second aspect of the present invention, in the hollow frame (23), a through hole (23c) for inserting an air supply hose (14a) for communicating the air cleaner (14) and the engine (21) is formed. It shall be the combine as described.

  In the invention according to claim 3, the lower surface of the hollow frame (23) is recessed upward to form a mounting seat (23d), and an mounting stay (14b) for mounting the air cleaner (14) is formed on the mounting seat (23d). The combine according to claim 1 or claim 2 attached.

  According to a fourth aspect of the present invention, the rear edge portion of the engine cover (24) defining the upper portion of the engine room (7) and the front edge portion of the hollow frame (23) are overlapped and connected to each other. The combine according to claim 3.

  In the invention according to claim 5, the control seat (11) is arranged on one side of the left and right sides of the airframe, and a clutch frame (15) for supporting the operation panel (13) is provided at a position inside the airframe of the control seat (11). A radiator support frame (35) for supporting the radiator (22) is provided, and both ends of the hollow frame (23) are supported in a bridging manner by the clutch frame (15) and the radiator support frame (35). To a combine according to any one of claims 1 to 4.

  According to the invention of claim 1, the air cleaner (14) is supported by a hollow frame (23) provided in a rear portion of the control seat (11) in the upper part of the engine room (7). A portion of the radiator cover (25) facing the dust-proof opening (25a) is opened, and the hollow frame (23) communicates with the air cleaner (14) as an outside air guiding duct. Then, outside air is introduced into the air cleaner (14) from the dust-proof opening (25a) of the radiator cover (25). Therefore, the combine configured as described above has a simple configuration that does not require a special duct member for guiding outside air in the engine room (7), and as a result, the intake of dust rising along the outer side of the fuselage can be suppressed. In addition, clean outside air can be supplied to the air cleaner, and the work load for maintenance of the air cleaner (14) can be reduced.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the air supply hose (14a) from the air cleaner (14) passes through the through hole (23c) of the hollow frame (23), and the engine below Since it is connected to (21), the complicated piping structure which bypasses other conventional ducts and frames can be simplified.

  According to the invention according to claim 3, in addition to the effect of the invention according to claim 1 or 2, in addition to forming the mounting seat (23d) by recessing the lower surface of the hollow frame (23) upward, this mounting seat The rigidity of (23d) is ensured, and the air cleaner (14) can be firmly supported through the mounting stay (14b).

  According to the invention according to claim 4, in addition to the effects of the invention according to any one of claims 1 to 3, each front and rear of the hollow frame (23) and the engine cover (24) disposed on the engine room (7) Since the end edges are overlapped and connected, the support rigidity of the engine cover (24) can be ensured.

  According to the invention of claim 5, in addition to the effects of the invention of any of claims 1 to 4, one end of the hollow frame (23) is a radiator support frame (35) and the other end is a clutch frame (15 ), The supporting rigidity can be ensured.

Plan view of the main part of the control section 1 arrow view of FIG. Side view of internal configuration of engine room 3 is an enlarged view of the main part of FIG. Plan sectional view showing the internal structure of the hollow frame Front view of radiator Plan view (a), front view (b) and side view (c) of shroud Top view of engine room Longitudinal section of engine room Combine side view

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
As shown in FIG. 10, the combine according to the present invention includes a reaping device 34 at the front portion of the aircraft having the traveling device 30, and includes a threshing device 32 and a grain storage device 33 arranged at the left and right at the rear of the aircraft. The front side of the grain storage device 33 is provided with a control unit 6 having an upper and lower configuration, an engine room 7, and the like.

  The maneuvering unit 6 and the surroundings of the engine room 7 will be described in detail. As shown in FIG. 1, the maneuvering unit 6 is moved toward one side (right side in the example) of the airframe as shown in FIG. The panel 12 and the side panel 13 are disposed, an air cleaner 14 for supplying engine air is disposed on the rear side of the control seat 11, and the engine room 7 is configured below the control seat 11 and the air cleaner 14. A clutch frame 15 is provided inside the fuselage seat 11 to support the side panel 13.

  The engine room 7 includes an engine 21 mounted on a traveling frame 31 and a radiator 22 disposed outside the engine 21 as shown in FIG. 2 as viewed in the direction of arrow A in FIG. 1 and in FIG. 3 as a side view of the internal configuration. The upper frame of the engine room 7 is partitioned by the hollow frame 23 that accommodates and supports the air cleaner 14 and the engine cover 24, and the upper part of the engine room 7 is partitioned, and the outer side of the body facing the radiator 22 is separated by the radiator cover 25. cover. Further, if necessary, a pre-cleaner 27 communicates with the hollow frame 23 and is provided above the threshing device.

  As shown in FIG. 2, the hollow frame 23 has a hollow structure by blow molding of a resin material in order to reduce weight and reduce heat and sound transmitted from the engine room 7 to the control seat 11, and one end of the hollow frame 23 passes through the radiator 22. The other end is supported by the clutch frame 15 on the radiator support frame 35 supported on 31 and the support rigidity is secured. The radiator support frame 35 supports a shroud 28 that surrounds the outer periphery of a cooling air intake fan driven by the engine 21.

  The radiator cover 25 includes a dust-proof opening 25a including a first dust-proof net 25b for introducing outside air for cooling the radiator 22, and suppresses the ingress of dust that rises along the outer side of the machine body. The outside dust to be sucked is double-filtered by the second dust net 36 arranged at an interval inside. Then, the opening 23 a formed at the outer end (one end) of the body of the hollow frame 23 is disposed in contact with the inner surface of the second dust net 36. As a composite member capable of reducing the number of parts by reducing the number of parts by forming a connection port 23b communicating with the intake port of the air cleaner 14 on the upper surface in the vicinity of the outer end of the airframe 14 of the hollow frame 23 and also serving as an intake duct. The hollow frame 23 is configured.

  The hollow frame 23 is formed with a through hole 23c through which the air supply hose 14a communicating from the air cleaner 14 to the engine 21 is inserted, so that the air supply hose 14a has a complicated hose layout that bypasses other ducts and frames. It is possible to supply air to the engine 21 without requiring the engine.

  Further, in order to firmly fix the air cleaner 14 to the hollow frame 23, as shown in FIG. 4 in an enlarged view of the main part of FIG. 3, the lower surface is recessed upward at a position where the mounting stay 14b of the air cleaner 14 is fixed. Thus, the mounting seat 23d that can ensure rigidity is formed. The attachment stay 14b is provided above the hollow frame 23, and the air cleaner 14 is attached to the hollow frame 23 in advance, so that assembling as a subsequent partial component becomes easy.

  Further, as shown in FIG. 4, a front-end edge of the hollow frame 23 is formed with a groove portion 37 in the left-right direction of the fuselage on the front surface, and the rear-end edge of the engine cover 24 is fitted into the groove portion 37 so By overlapping and connecting the edge portions, a sealing member 24a is interposed in the connection portion in order to secure the rigidity of the engine cover 24 and to block the hot air in the engine room 7 transmitted to the control seat 11.

  As shown in detail in FIG. 5, a space 38 having a predetermined front-rear width and a predetermined left-right width serving as an outside air passage is formed inside the hollow frame 23, and the mounting stay 14b is connected to the mounting stay 14b. The depression formed upward from the lower surface is arranged so as to partition the space 38 in the front-rear direction in a side view of the body.

That is, the first ventilation path 38a is formed on the front side of the hollow body, the second ventilation path 38b is formed on the rear side of the hollow body, and the outside air introduced into the hollow frame from the opening 23a is passed through both paths 38a, 38a, 38b passes through the connection port 23b and flows into the air cleaner 14.
A plurality of partition plates 39 having a function as a resonator are arranged in the first ventilation path 38a having a larger cross-sectional area of the flow path than the second ventilation path 38b. By this partition plate 39, pulsation of the outside air introduced into the hollow frame 23 can be suppressed, and noise in the control unit 6 can be reduced.

  As shown in FIG. 6, the shroud 28 is integrally molded from the traveling frame 31 to the upper surface of the engine cover 24, and the upper surface 28 a of the shroud 28 and the hollow frame 23 are connected, so that no special fixing member is required. .

  Further, the shroud 28 is formed by bending both side ends of the shroud 28 back and forth at the width position of the radiator 22 as shown in FIG. 7 in a top view (a), a front view (b) and a side view (c). The side edge portions 28b and 28c can secure rigidity without requiring the frame of the radiator 22, and can be configured by exposing the front side of the radiator 22 in the lateral direction of the airframe as shown in FIG. Therefore, maintenance can be easily performed by simply opening the radiator cover 25 from the outside of the machine body, and the radiator 22 can be tilted by providing the connecting member 32 between one side edge portion 28c of the shroud 28 and the clutch frame 15. Can be prevented.

  Further, as shown in FIG. 9, a longitudinal sectional view of the engine room is formed inside the radiator cover 25, so that a separation space S defined by the shroud 28 is formed, so that heat from the engine 21 is applied to the radiator cover 25. Since it becomes difficult to transmit, the cooling effect can be improved. In this separation space S, the fuel pipe 33 and the hydraulic pipe 34 are arranged to suppress the temperature rise of the fuel and hydraulic oil, and the battery cable 35 is arranged to break the coating due to vibration of the engine 21. The accompanying fire can be prevented.

6 Control part 7 Engine room 11 Control seat 13 Side panel 14 Air cleaner 14a Air supply hose 14b Mounting stay 15 Clutch frame 21 Engine 22 Radiator 23 Hollow frame 23a Opening 23b Connection port 23c Through hole 23d Mounting seat 24 Engine cover 24a Seal member 25 Radiator Cover 25a Dust-proof opening 36 Radiator support frame

Claims (5)

A control seat (11) for an operator to sit down and operate a control instrument, and an engine room (7) that houses an engine (21) that is a prime mover and a radiator (22) disposed outside the engine (21) In the arranged combine,
A hollow frame (23) is provided at a position behind the control seat (11) in the upper part of the engine room (7), and an air cleaner (14) for supplying air to the engine (21) is attached to the hollow frame (23). A radiator cover (25) having a dustproof opening (25a) for introducing outside air while covering the air cleaner (14) and the radiator outer part of the radiator (22) is provided, and the dustproof opening (25a) in the hollow frame (23) is provided. ), And the hollow frame (23) communicates with the air cleaner (14) as an outside air guide duct.   The combine according to claim 1, wherein the hollow frame (23) is formed with a through hole (23c) for inserting an air supply hose (14a) for communicating the air cleaner (14) and the engine (21).   The lower surface of the hollow frame (23) is recessed upward to form a mounting seat (23d), and a mounting stay (14b) for mounting an air cleaner (14) is mounted on the mounting seat (23d). Item 3. A combine according to item 2.   The rear edge part of the engine cover (24) that defines the upper part of the engine room (7) and the front edge part of the hollow frame (23) are overlapped and connected to each other. Combine.   The control seat (11) is arranged on one side of the left and right sides of the fuselage, and a clutch frame (15) for supporting the operation panel (13) is provided at a position inside the fuselage seat (11) to support the radiator (22). A radiator support frame (35) is provided, and both ends of the hollow frame (23) are supported in a bridging manner by the clutch frame (15) and the radiator support frame (35). Combine as described.

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