JP2012130324A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To settle problems that as a radiator is opened by vertical axis rotation so, when the rotation angle of the radiator is made to be large, the maintainability of other elements is deteriorated, and, as the rotation angle of the radiator is enlarged so each hose length of a cooler becomes longer.SOLUTION: There is provided a combine harvester, which is characterized in that a reaping device 4 is set at the front side of a traveling device 2, a threshing device is set at the upper one side of the traveling device 2, a grain tank 5 is set at the upper other side of the traveling device 2, an engine 12 driving the traveling device 2, the reaping device 4 and the threshing device is installed, a cooling fan 13, a shroud 17 covering the cooling fan 13 and a cooler F are set at the outside of the engine 12, a belt 27 transmitting driving force from the engine 12 to a discharge device 25 of the grain tank 5 is set at the inside lower side of the cooler F, and the cooler F and the shroud 17 are pivoted rotatably around a rotation support S in a front-back direction on an upper side.

Description

  The present invention relates to a combine.

Conventionally, a cutting device is provided in front of the traveling device, a threshing device is provided on one upper side of the traveling device, a grain tank is provided on the other upper side, and a cooling fan and the cooling device are provided outside the engine that drives the traveling device and the like. A shroud that covers the fan and a cooler are provided, and a belt that transmits rotation to the drain device of the Glen tank is provided on the lower side of the radiator inside the cooler. The configuration to be made is known (Patent Document 1).
Conventionally, a configuration in which a radiator is rotated in the vertical axis at a fulcrum at the rear end of the airframe is well known (Patent Document 2).

JP 2010-47049 A Japanese Patent Laid-Open No. 10-248353

In any of the known examples, since the radiator is configured to rotate the vertical axis, unless the rotation angle of the radiator is large, maintenance of the belt of the Glen tank is difficult, and the rotation angle of the radiator becomes large. There exists a subject that each hose length of a cooler becomes long.
In the present application, the cooler mounting structure is devised, and the open space around the drive unit of the Glen tank is increased with a small amount of rotation of the radiator, thereby facilitating maintenance.

The invention of claim 1 is provided with a reaping device 4 in front of the traveling device 2, a threshing device on one upper side of the traveling device 2, and a grain tank 5 on the other upper side, and the traveling device 2, the reaping device 4, An engine 12 for driving the threshing device is provided, and a cooling fan 13, a shroud 17 that covers the cooling fan 13, and a cooler F are provided outside the engine 12. A belt 27 for transmitting the driving force from the engine 12 to the drain device 25 of the Glen tank 5 is provided, and the cooler F and the shroud 17 are pivotally supported so as to be rotatable around the upper pivot point S in the front-rear direction. The cooler F and the shroud 17 are pivoted outward on the horizontal axis around the pivot point S above the fuselage frame 1 to open the drive part of the glen tank 5. To do.
The invention of claim 2 is a combine characterized in that a stopper member 35 for holding the cooler F and the shroud 17 in an outer rotational posture is provided at a predetermined position of the cooler F. The cooler F and the shroud 17 are rotated outside the horizontal axis around the rotation fulcrum S, the open state is held by the stopper member 35, and maintenance such as inspection of the drive unit of the Glen tank 5 is performed.
According to a third aspect of the present invention, a partition member 41 for closing a gap between the lower part of the cooler F and the fuselage frame 1 is integrated with the lower part of the cooler F between the lower part of the cooler F and the fuselage frame 1. The air blow from the cooling fan 13 strikes the engine 12 to cool the engine 12, and the cooling air from the cooling fan 13 strikes the engine 12 and becomes hot air. A part of the dispersed hot air flows so as to return to the outside of the cooler F, but is returned to the engine room 11 by the partition member 41 between the lower part of the cooler F and the body frame 1.
According to a fourth aspect of the present invention, the cooler F includes a radiator 14 outside the shroud 17 and an oil cooler 15 and an intercooler 16 attached to a frame body 43 provided outside the radiator 14. The frame 43 is connected by a connecting member 45 and the shroud 17 is provided with the rotation fulcrum S. The combiner is characterized in that the air blown from the cooling fan 13 is sent to the radiator 14 and the oil cooler 15. Further, the radiator 14 which is cooled by hitting the intercooler 16 and rotated laterally about the rotation fulcrum S, the frame body 43 to which the oil cooler 15 and the intercooler 16 are attached, and the shroud 17 are opened by the stopper member 35. And maintenance such as inspection of the drive part of the Glen tank 5 It is carried out.
The invention of claim 5 is provided with a cooling hose 52 for connecting the lower part of the cooler F and the engine 12 and an interference preventing stopper 86 for restricting the movement of the cooling hose 52 to the belt 27 side. The cooling water is circulated to the engine 12 by the cooler F and cooled by the cooling hose 52 that connects the lower part of the cooler F and the engine 12.
In this case, the cooling hose 52 is arranged in the vicinity of the belt 27 that transmits the driving force from the engine 12 to the discharge device 25 of the glen tank 5 to shorten the entire length, and even if the cooling hose 52 is deformed, it interferes. The prevention stopper 86 restricts the movement to the belt 27 side to prevent interference.

In the first aspect of the present invention, the cooler F and the shroud 17 rotate outwardly on the horizontal axis about the upper pivot fulcrum S of the body frame 1, so that the ratio of the amount of rotation of the cooler F and the shroud 17 The drive part of the Glen tank 5 can be opened largely, maintenance can be facilitated, and the amount of rotation of the cooler F and the shroud 17 can be reduced, so that the length of the pipe can be shortened.
In the second aspect of the invention, since the cooler F and the shroud 17 can be kept open by the stopper member 35, maintenance such as inspection of the drive unit of the glen tank 5 can be easily performed.
In the invention of claim 3, the partition member 41 prevents the air blown by the cooling fan 13 that has been heated in the engine room 11 and turned into hot air from returning to the outside of the cooler F. The air can be always kept cool, and the cooling efficiency is not lowered. Further, since the partition member 41 moves integrally with the cooler F when the cooler F is rotated outward, the maintenance space around the belt 27 can be widely opened.
In the invention of claim 4, the radiator 14, the oil cooler 15, and the intercooler 16 can be cooled by blowing air from the cooling fan 13, and the shroud 17 and the frame body 43 are connected by the connecting member 45. A gap is not easily generated between the radiator 14, the shroud 17, and the frame body 43, and the cooling effect can be improved. Further, since the rotation fulcrum S is provided on the shroud 17, the frame body 43 (oil The weight of the cooler 15 and the intercooler 16) is not applied, and deformation and breakage of the radiator 14 can be prevented.
In the invention of claim 5, the cooling hose 52 can be routed with the entire length reduced, and interference between the cooling hose 52 and the belt 27 can be prevented.

The side view of a combine. The top view around an engine. The side view of a radiator cover. Side view of shroud. The rear view of the open state of a radiator. The normal state rear view of a radiator. The side view of the engine vicinity. FIG. The front view. FIG. Intercooler open transition state diagram. The side view before the open transition of an intercooler. The open transition state side view. The rear view. FIG. The enlarged plan view. The front view around an engine.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a machine frame, 2 denotes a traveling device provided at a position below the aircraft frame 1, and a threshing device (not shown) is provided on one side above the traveling device 2. A reaping device 4 is provided on the front side of the threshing device 3. The threshing device is provided with a Glen tank 5 for primary storage of grains threshed and selected by the threshing device, and a control unit 7 is provided on the front side of the Glen tank 5 (FIG. 1).
An engine room 11 is formed in the vicinity of the lower part (rear side) of the driver's seat 10 of the control unit 7, and an engine 12 is provided in the engine room 11. An engine cooling fan 13 is provided on the outside (right side) of the engine 12 (FIG. 2). A cooler F that cools the engine 12 is provided outside the cooling fan 13. In the present application, the cooler F includes a radiator 14 and an oil cooler 15 and an intercooler 16 provided outside the radiator 14. A shroud 17 that surrounds the cooling fan 13 is provided behind the radiator 14.

A radiator cover 20 is provided outside the radiator 14. An opening 21 is formed in the radiator cover 20, and a dustproof net 22 is provided in the opening 21 (FIG. 4). The radiator cover 20 is attached to a predetermined position of a frame 23 provided on the machine body frame 1 side so as to be rotatable outwardly by a vertical axis 24 and a bearing (not shown).
The cooler F and the shroud 17 are configured such that the lower side can be rotated at the upper pivot point S in the front-rear direction.
This facilitates inspection, replacement, and attachment / detachment of the belt 27 wound around the pulley 26 that is rotationally input to the discharge device 25 of the Glen tank 5.
In this case, since the radiator 14 is pivoted about the upper pivot point S, the open space around the pulley 26 can be sufficiently secured as compared with the ratio of the opening amount. The piping can be shortened, which is preferable.
28 is an output pulley, 29 is a tension pulley, 30 is a tension spring, and 31 is a gear box (FIG. 7).

The cooler F of the present application is composed of the radiator 14, the oil cooler 15, and the intercooler 16, so that the lower part of the radiator 14 is integrated with these and the shroud 17, with the pivot point S above the shroud 17 as the center. The horizontal axis rotates.
A stopper member 35 is provided at a predetermined position of the radiator 14. The stopper member 35 maintains the open state of the radiator 14, the oil cooler 15, the intercooler 16, and the shroud 17 that are opened to rotate outward in the horizontal axis.
The stopper member 35 is rotatably attached to the shroud 17 by a shaft 35A. The stopper member 35 is provided with an engaging groove 35B. The engaging groove 35B is engaged with an engaging member (shaft) 35C provided on the outer vertical frame 37 of the frame 23 fixed to the body frame 1 so as to be freely disengaged. (FIGS. 4 and 6).

That is, before opening of the radiator 14 and the like, the stopper member 35 is positioned on the inner side (back side) of the outer vertical frame 37, and before opening of the radiator 14 and the like, the stopper member 35 is positioned on the inner side (back side) of the outer vertical frame 37. Then, when the radiator 14 and the like are integrally opened around the rotation fulcrum S, the stopper member 35 and the engaging member (shaft) 35C overlap in the rear view as shown in the figure, and the engaging groove 35B of the stopper member 35 is formed. Engage with the outer vertical frame 37 to maintain the open state of the radiator 14 and the like.
Therefore, an open space for maintenance can be formed around the belt 27 of the Glen tank 5, and maintenance such as inspection, replacement, and detachment is facilitated.

The rotation fulcrum S of the cooler F is a horizontal axis 36. The horizontal shaft 36 protrudes from the inner side in the front-rear direction to the upper part of the shroud 17, is inserted into the long hole 39 of the stay 38 provided in the outer vertical frame 37 in the frame 23, and is a portion protruding from the long hole 39. An engagement pin 40 formed by a split pin or the like is engaged with the horizontal shaft 36 to prevent it from coming off.
Therefore, the lower portion of the radiator 14 is opened upward while the stay 38 is moved outward by the long hole 39 with respect to the horizontal shaft 36 (FIG. 5).
Accordingly, since the radiator 14 moves outward with respect to the rotation fulcrum S by the long hole 39, the movement amount of the lower part of the cooler F can be increased with respect to the upper movement amount of the cooler F. The opening space around the belt 27 of the tank 5 can be increased, facilitating maintenance.

A frame (plate seal) 43 surrounding the oil cooler 15 and the intercooler 16 is provided in front of the radiator 14.
The frame body 43 is provided with an attachment portion 44, and the outer end of the connecting member 45 is fixed to the attachment portion 44 with a fixture 46. The inner end of the connecting member 45 is fixed to the shroud 17 by the fixing tool 46, and the frame member 43 and the shroud 17 are connected by the connecting member 45 (FIGS. 5 and 9).
The frame body 43 is integrally attached to the radiator 14 side, the shroud 17 is also attached to the radiator 14 side, and the outer end side of the connecting member 45 is attached to the frame 23 side by a detachable fixing tool 47.
The connecting member 45 is provided below the stay 38, and the fixing member 47 is removed to open the radiator 14, the frame body 43, and the shroud 17 integrally outside.

Further, a lower connecting member 48 is provided below the frame body 43, the radiator 14, and the shroud 17, and the frame body 43, the radiator 14, and the shroud 17 are integrally connected by the lower connecting member 48. The outer end side of the connecting member 48 is attached to the body frame 1 side by a detachable fixture 47.
The oil cooler 15 and the intercooler 16 are arranged vertically in the frame body 43, and the frame body 43 and the shroud 17 are connected by the connecting member 45 and the lower connecting member 48 with the radiator 14 interposed therebetween (FIG. 9).
Therefore, it is possible to prevent the occurrence of problems such as displacement of the radiator 14, the oil cooler 15, and the intercooler 16 due to the elastic restoring force of the lower hose 52 of the radiator 14, the piping hose 53 of the oil cooler 15, and the piping hose 54 of the intercooler 16.

A partition member 41 is provided between the lower part of the cooler F and the body frame 1 to block the gap between the lower part of the cooler F and the body frame 1 (FIGS. 5, 9, and 12).
That is, the cooler F of the present application is configured by the radiator 14, the oil cooler 15, and the intercooler 16, and the frame body 43 for attaching the oil cooler 15 and the intercooler 16 also forms a part of the cooler F. The partition member 41 is integrally provided at the lower portion, and the lower portion of the partition member 41 is extended to the upper surface of the body frame 1.
Therefore, the engine room 11 and the outside of the radiator cover 20 are blocked by the partition member 41 of the frame body 43, so that hot air from the cooling fan 13 can be prevented from being blown out from the engine room 11, and this hot air is again transmitted to the radiator cover 20. Can be prevented, and the cooling efficiency of the cooler F can be improved.

Thus, the oil cooler 15 cools the lubricating oil of the transmission that shifts the rotation of the engine 12 transmitted to the transmission device 2 and the transmission oil cooler 60 that cools the lubricating oil of the transmission (not shown) of the traveling device 2. The mission oil cooler 60 and the HST oil cooler 61 are partially stacked inside and outside (FIG. 12).
The pipe hose 53A of the mission oil cooler 60 and the pipe hose 53B of the HST oil cooler 61 are arranged in a pair in the front-rear direction, and the elasticity of each pipe hose 53 makes the mission oil cooler 60 and the HST oil cooler 61 A predetermined portion of the piping hose 53A and the piping hose 53B is bent to rotate outward in the vertical axis (FIG. 2).
Therefore, the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 are opened outside by utilizing the elasticity of the piping hose 53 to facilitate maintenance.

In addition, since the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 are opened outside by utilizing the elasticity of the piping hose 53, the outside can be opened without providing a special rotation mechanism. To simplify.
Further, since the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 are arranged in parallel in the inner and outer directions (left and right direction), the cooling area of the mission oil cooler 60 and the HST oil cooler 61 is widened and the capacity is increased. This can improve the cooling efficiency.
An attachment member 62 is provided on the frame body 43, and the mission oil cooler 60 and the HST oil cooler 61 are detachably attached to the attachment member 62 by bolts 63 (FIG. 8).

The pipe hose 53 </ b> A of the mission oil cooler 60 and the pipe hose 53 </ b> B of the HST oil cooler 61 are disposed between the radiator 14 and the rear part of step 66 of the control unit 7.
The intercooler 16 is disposed above the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15, and a predetermined portion of the pipe hose 54 is bent by the elasticity of the pipe hose 54 of the intercooler 16 to rotate outward in the horizontal axis. The piping hose 54 is disposed above the radiator 14.
Therefore, the length of fluctuation of each hose pipe hose 53 and pipe hose 54 can be shortened compared with that piped downward, the price can be lowered, and the cost can be reduced.
Moreover, since the piping of the piping hose 54 of the intercooler 16 is close to the rotation fulcrum S of the radiator 14 above the radiator 14, the fluctuation length of the piping hose 54 can be shortened and the cooler F is opened. There is no trouble.

The intercooler 16 is attached to the attachment frame 70, and the attachment frame 70 is configured to be detachable from the upper frame 71 of the frame body 43 (FIG. 11).
The attachment frame 70 of the intercooler 16 is fitted and attached to the cutout portion 72 of the upper frame 71 in plan view. The notch 72 has a shape that opens toward the outside of the upper frame 71 so that the outside of the intercooler 16 can be opened.
Therefore, the intercooler 16 is opened outward so as to be farther from the radiator 14, and maintenance of the intercooler 16 and the cooler F is facilitated.
Further, the upper frame 71 is provided with a projection 73 with which a predetermined portion of the mounting frame 70 is engaged.
Therefore, by engaging a predetermined portion of the mounting frame 70 with the protrusion 73, the open state of the intercooler 16 is maintained, and maintenance work is facilitated.

In this case, if the projection 73 is a bolt for fixing the mounting frame 70 and the upper frame 71, the fixing tool and the operation tool can be used together, and a rational configuration is obtained.
The piping hose 54 of the intercooler 16 is disposed so as to straddle the radiator 14 between the engine connecting portion 75 and the intercooler 16 attached to the frame body 43.
Accordingly, the pipe hose 54 is configured to have a vertical cylindrical portion 76 that is a connecting portion between the engine side connecting portion 75 and the intercooler 16 and a horizontal cylindrical portion 77 that connects the vertical cylindrical portions 76, and the horizontal cylindrical portion 77 is formed. The intercooler 16 is rotated upward by the bending of the horizontal cylinder portion 77 and is opened outward by being positioned above the radiator 14.
Therefore, when the intercooler 16 is opened outside, the horizontal tube portion 77 can be bent to minimize the deformation of the vertical tube portion 76. As a result, each connection portion between the engine side connection portion 75 and the intercooler 16 ( The load applied to the clamp) is reduced, and troubles such as loosening and disconnection of the connecting portion of the piping hose 54 are prevented.

The pipe hose 54 of the intercooler 16 is provided with a pair of front and rear piping hoses 54A and 54B in a plan view, and the water supply port of the radiator 14 between the front piping hose 54A and the rear piping hose 54B. 80 is arranged.
Therefore, since the front piping hose 54A and the rear piping hose 54B are provided on both sides of the water supply port 80 of the radiator 14, the piping hose 54 does not get in the way when water is supplied to the radiator 14.
Further, the front piping hose 54A and the rear piping hose 54B can be arranged linearly, the total length of the hose can be shortened, the resistance is low, and the efficiency is improved.
The lower hose 52 of the radiator 14 passes from below the radiator 14 and under the shroud 17, and the belt belt 27 of the discharge device discharge device 25 of the Glen tank 5 and the spring 82 of the tension arm 81 of the belt 27 and the shroud 17. The piping is configured so as to reach the water pump 83 through the gap.

Therefore, since the lower hose 52 passes between the radiator 14 and the engine room 11, the replacement is easy, the wiring is shortened and the cost is reduced, and the number of assembling steps is reduced.
By utilizing the bending of the lower hose 52, the radiator 14 is rotated upward about the rotation fulcrum S, thereby facilitating the inspection and maintenance of the drive unit to the Glen tank 5 on the front side of the engine 12, which is the original purpose. .
A guide 85 is provided in the shroud 17 so as to integrally fix the portion of the lower hose 52 that passes below the radiator 14 of the radiator 14 to the shroud 17 (FIGS. 5 and 7).
Since the lower hose 52 has one end connected to the engine room 11 and the other end connected to the water pump 83, the vicinity of the connecting portion with the engine room 11 is greatly elastically deformed by opening the radiator 14 outside. If the deformation of the lower hose 52 is left unattended, there is a possibility that interference with the drive unit to the glen tank 5 may occur. However, in this application, the portion of the lower hose 52 that passes below the radiator 14 in the lower hose 52 is guided to the shroud 17 by the guide 85. Since it is in a fixed state integrally, interference with the drive part to the Glen tank 5 is prevented.

An interference prevention stopper 86 is provided between the lower hose 52 below the radiator 14 and the drive section of the glen tank 5 (FIGS. 5 and 7).
Therefore, even if the lower hose 52 is elastically deformed by opening the radiator 14 outside, when the radiator 14 is returned to the original position, the lower portion of the radiator 14 stops rotating at a predetermined position by the interference prevention stopper 86. Further, interference between the drive unit to the Glen tank 5 and the lower portion of the radiator 14 and the lower hose 52 is prevented.

(Operation of Example)
The engine 12 is started, the vehicle travels with the traveling device 2, and the cereals harvested by the reaping device 4 during traveling are threshed by the threshing device.
When the engine 12 is started, the cooling fan 13 rotates and sucks outside air from the dust-proof net 22 of the radiator cover 20. The sucked outside air passes through the radiator 14 and cools cooling water for cooling the engine 12. It blows through while cooling the outer periphery of the engine 12.
Since the cooler F and the shroud 17 are configured so that the lower side can be rotated at the upper longitudinal fulcrum S, the belt wound around the pulley 26 that rotates and inputs to the discharge device 25 of the Glen tank 5 27 easy to check, replace and detach.
Since the cooler F is constituted by the radiator 14, the oil cooler 15, and the intercooler 16, the cooler F and the shroud 17 are integrally formed, and the horizontal axis pivots around the pivot fulcrum S above the shroud 17. In addition, the belt 27 wound around the pulley 26 that is rotationally input to the discharge device 25 of the Glen tank 5 can be easily inspected, replaced, and detached.

In this case, since the radiator 14 is pivoted about the upper pivot fulcrum S, the open space around the pulley 26 can be sufficiently secured compared to the ratio of the opening amount, so that the piping to the radiator 14 can be provided. It can be shortened and is preferable.
Since the stopper member 35 is provided at a predetermined position of the radiator 14, the stopper member 35 keeps the radiator 14, the oil cooler 15, the intercooler 16, and the shroud 17 opened in the horizontal axis direction.
Therefore, maintenance such as inspection, replacement, and attachment / detachment of the belt 27 of the Glen tank 5 is facilitated.

The rotation fulcrum S of the radiator 14 is a horizontal shaft 36 protruding in the front-rear direction on the upper portion of the shroud 17, and the horizontal shaft 36 is inside a long hole 39 of a stay stay 38 provided in an outer vertical frame 37 of the frame 23. Since the engagement pin (split pin) 40 is inserted to prevent it from coming off, when the lower portion of the radiator 14 is lifted while moving the long hole 39 outward with respect to the horizontal shaft 36, the radiator 14 is It can be opened upward.
Therefore, since the radiator 14 moves outward with respect to the horizontal shaft 36 serving as the rotation fulcrum S by the long hole 39, the movement amount of the lower portion of the radiator 14 is also set to the upper movement amount of the radiator 14 at this point. The opening space around the belt 27 of the Glen tank 5 can be increased, and maintenance can be facilitated.

A frame body 43 to which the oil cooler 15 and the intercooler 16 are attached is provided in front of the radiator 14, and the frame body 43 and the shroud 17 are coupled by the coupling member 45. Therefore, when the fixing member 47 of the coupling member 45 is removed, The radiator 14, the frame body 43, and the shroud 17 are integrally opened to facilitate maintenance such as inspection, replacement, and attachment / detachment of the belt 27 of the glen tank 5.
Further, since the radiator 14, the frame body 43, and the shroud 17 are connected by the lower connection member 48 provided below the connection member 45, the frame body 43, the radiator 14, and the shroud 17 are connected by the lower connection member 48. Easier to open outside.
Since the partition member 41 below the frame body 43 to which the oil cooler 15 and the intercooler 16 are attached is extended to the upper surface of the body frame 1, the engine room 11 and the outside of the radiator cover 20 are separated from each other by the partition wall 43. By blocking with the member 41, it is possible to suppress the hot air from the cooling fan 13 from being blown out from the engine room 11, to prevent the hot air from being sucked from the radiator cover 20 again, and to improve the cooling efficiency of the radiator 14.

Since the oil cooler 15 and the intercooler 16 are arranged side by side in the vertical direction in the frame 43 and the frame 43 and the shroud 17 are connected by the connecting member 50, the lower hose 52 of the radiator 14 and the piping hose 53 of the oil cooler 15 are connected. In addition, it is possible to prevent the occurrence of problems such as misalignment of the radiator 14, the oil cooler 15, and the intercooler 16 due to the elastic restoring force of the piping hose 54 of the intercooler 16.
Accordingly, the oil cooler 15 cools the lubricating oil of the transmission oil transmission 60 for shifting the rotation of the engine 12 transmitted to the transmission oil transmission 60 and the transmission oil cooler 60 that cools the lubricating oil of the transmission (not shown) of the traveling apparatus 2. The oil cooler 61 is configured, the mission oil cooler 60 and the HST oil cooler 61 are partially overlapped inside and outside, and the pipe hose 53A of the mission oil cooler 60 and the pipe hose 53B of the HST oil cooler 61 are respectively arranged vertically. As a pair, the transmission oil cooler 60 and the HST oil cooler 61 are arranged in the front-rear direction, and the predetermined portions of the piping hose 53A and the piping hose 53B are bent by the elasticity of each piping hose 53 to rotate outward in the vertical axis. The oil cooler 60 of the oil cooler 60 and the H T oil cooler 61 is caused to outwardly open by utilizing the elasticity of the hose 53, to facilitate maintenance.

In addition, since the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 are opened outside by utilizing the elasticity of the piping hose 53, the outside can be opened without providing a special rotation mechanism. To simplify.
Further, since the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 are arranged in parallel in the inner and outer directions (left and right direction), the cooling area of the mission oil cooler 60 and the HST oil cooler 61 is widened and the capacity is increased. This can improve the cooling efficiency.
An attachment member 62 is provided on the frame 43, and the transmission oil cooler 60 and the HST oil cooler 61 are detachably attached to the attachment member 62 by bolts 63, so the bolt 63 is removed and the transmission oil of the oil cooler 15 is removed. The cooler 60 and the HST oil cooler 61 are opened to the outside using the elasticity of the piping hose 53, so that the maintenance of the transmission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 and the maintenance of the radiator 14 can be performed.

Conversely, when the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 are returned to their original positions and attached to the mounting member 62 with the bolts 63, the front side of the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 is Supported by the piping hose 53, the rear side of the transmission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 is supported by the mounting member 62.
The intercooler 16 is disposed above the mission oil cooler 60 and the HST oil cooler 61 of the oil cooler 15 and is configured to bend a predetermined portion of the pipe hose 54 by the elasticity of the pipe hose 54 of the intercooler 16 and rotate outward in the horizontal axis. Since the piping hose 54 is disposed above the radiator 14, the length of fluctuation of each hose can be shortened as compared with the piping hung below, the price can be reduced, and the cost can be reduced.

Moreover, since the piping of the piping hose 54 of the intercooler 16 is close to the pivot fulcrum S of the radiator 14 above the radiator 14, the fluctuation length of the piping hose 54 can be shortened, and the radiator 14 is opened. There is no trouble.
The intercooler 16 is attached to the attachment frame 70, the attachment frame 70 is configured to be detachable from the upper frame 71 of the frame body 43, and the attachment frame 70 of the intercooler 16 is fitted to the cutout portion 72 of the upper frame 71 in a plan view. Since the notch 72 has a shape that opens toward the outside of the upper frame 71, the intercooler 16 is opened outward so as to be farther from the radiator 14, thereby facilitating maintenance of the intercooler 16 and the radiator 14.

Since the upper frame 71 is provided with a protrusion 73 that engages with a predetermined portion of the mounting frame 70, the open state of the intercooler 16 is maintained by hooking and engaging the predetermined portion of the mounting frame 70 with the protrusion 73. And make maintenance work easier.
In this case, if the protrusion 73 is a bolt for fixing the mounting frame 70 and the upper frame 71, the fixing tool and the operation tool can be used together, and a rational configuration is obtained.
The piping hose 54 of the intercooler 16 is disposed so as to straddle the radiator 14 between the engine side connection portion 75 and the intercooler 16 attached to the frame body 43, and the piping hose 54 is connected to the engine side connection portion 75 and the intercooler 16. Therefore, when the intercooler 16 is opened to the outside, the horizontal cylinder 77 is bent and the vertical cylinder 76 is connected to each vertical cylinder 76. The deformation of the cylindrical portion 76 can be minimized. As a result, the load applied to each connection portion (clamp) between the engine side connection portion 75 and the intercooler 16 is reduced, and the connection portion of the pipe hose 54 is loosened or detached. To prevent the occurrence of problems.

The piping hose 54 of the intercooler 16 is provided with a pair of front and rear piping hoses 54A and 54B in a plan view, and the water supply port 80 of the radiator 14 is disposed between the front piping hose 54A and the rear piping hose 54B. Therefore, the piping hose 54 does not get in the way when supplying water to the radiator 14, and the front piping hose 54A and the rear piping hose 54B can be arranged linearly, the total length of the hose can be shortened, and the resistance is also low. It is efficient and improves efficiency.
The lower hose 52 of the radiator 14 passes from below the radiator 14 under the shroud 17 and passes between the belt 27 of the discharge device 25 of the Glen tank 5 and the spring 82 of the tension arm 81 of the belt 27 and the shroud 17. Since the piping is configured to reach 83, the replacement is facilitated, the wiring is shortened and the cost is reduced, and the number of assembling steps is reduced.

By utilizing the bending of the lower hose 52, the radiator 14 is rotated upward about the rotation fulcrum S, thereby facilitating the inspection and maintenance of the drive unit to the Glen tank 5 on the front side of the engine 12, which is the original purpose. .
The portion of the lower hose 52 that passes below the radiator 14 in the radiator 14 is fixed to the shroud 17 integrally by the guide 85, so that interference with the drive unit to the glen tank 5 is prevented.

Since the interference prevention stopper 86 is provided between the lower hose 52 below the radiator 14 and the drive part of the glen tank 5, even if the lower hose 52 is elastically deformed by the outside opening of the radiator 14, the radiator 14 is restored to the original position. When returning to the position, the lower portion of the radiator 14 stops rotating at a predetermined position by the interference preventing stopper 86, so that interference between the drive unit to the glen tank 5 and the lower portion of the radiator 14 and the lower hose 52 is prevented.
Each of the above-described embodiments is illustrated and described separately or mixed for easy understanding. However, these embodiments can be combined in various ways, and these expressions can be used for configuration and operation. However, there is a case where a synergistic effect is obtained.

  DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ... Mowing device 4, 5 ... Glen tank, 7 ... Steering part, 10 ... Seat, 11 ... Engine room, 12 ... Engine, 13 ... Cooling fan, DESCRIPTION OF SYMBOLS 14 ... Radiator, 15 ... Oil cooler, 16 ... Intercooler, 17 ... Shroud, 20 ... Radiator cover, 21 ... Opening part, 22 ... Dustproof net, 23 ... Frame, 24 ... Vertical axis, 25 ... Discharge device, 26 ... Pulley, 27 ... Belt, 35 ... Stopper member, 36 ... Horizontal axis, 37 ... Outer vertical frame, 38 ... Stay, 39 ... Long hole, 40 ... Engagement pin, 43 ... Frame body, 44 ... Mounting portion, 45 ... Connecting member, 46 ... Fixing tool, 47 ... Fixing tool, 48 ... Lower connection member, 52 ... Lower hose, 53 ... Piping hose, 54 ... Piping hose, 60 ... Mission oil cooler, 61 ... HST oil Cooler, 62 ... mounting member, 63 ... bolt, 66 ... step, 70 ... mounting frame, 71 ... upper frame, 72 ... notch, 73 ... projection, 75 ... engine side connecting part, 76 ... vertical cylinder part, 77 ... horizontal A cylinder part, 80 ... water supply port, 81 ... tension arm, 82 ... spring, 83 ... water pump, 85 ... guide, 86 ... stopper for interference prevention.

Claims (5)

  A reaping device (4) is provided in front of the traveling device (2), a threshing device is provided on the upper side of the traveling device (2), and a glen tank (5) is provided on the other side of the traveling device (2). An apparatus (4) and an engine (12) for driving the threshing device are provided, and a cooling fan (13), a shroud (17) covering the cooling fan (13) and a cooler (outside of the engine (12)) F) and a belt (27) for transmitting the driving force from the engine (12) to the discharge device (25) of the Glen tank (5) is provided on the lower side inside the cooler (F), A combine, wherein the cooler (F) and the shroud (17) are pivotally supported around a pivot point (S) in the upper front-rear direction.   The combine according to claim 1, wherein a stopper member (35) for holding the cooler (F) and the shroud (17) in an outer rotational posture is provided at a predetermined position of the cooler (F). .   In Claim 1 or Claim 2, Between the lower part of the above-mentioned cooler (F), and the above-mentioned body frame 1, the partition member which plugs up the crevice between the lower part of this cooler (F) and the above-mentioned body frame (1) 41) a combine provided integrally with a lower part of the cooler (F).   In Claim 1 or Claim 2 or Claim 3, the cooler (F) is provided on a radiator (14) outside the shroud (17) and a frame (43) provided outside the radiator (14). The oil cooler (15) and the intercooler (16) are attached, the shroud (17) and the frame (43) are connected by a connecting member (45), and the pivot point (S) is connected to the shroud (17). ).   In Claim 1 or Claim 2 or Claim 3 or Claim 4, the cooling hose (52) which connects the lower part of the cooler (F) and the engine (12) is provided, and the cooling hose (52) A combine comprising an interference prevention stopper (86) for restricting movement toward the belt (27).

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