JP2016030535A - Traveling bogie - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traveling bogie which can favorably secure the cooling efficiency of a radiator while making a manufacturing cost low.SOLUTION: A drive part support frame having a lattice window which is formed into a lattice frame shape is continuously arranged at a one-side front part of either of the left and right of a machine body frame in a state of being hung out to the outside of one side, a drive part is arranged on the drive part support frame. A cooling air duct which makes the one-side outside being the outside of a machine and a radiator communicate with each other in left and right directions is arranged at a lower part of a drive seat which is arranged at the drive part, cooling air can be supplied to the radiator from the outside of the machine via the cooling air duct, a bottom outside air take-in port is arranged at a bottom of the cooling air duct, and outside air being the cooling air can be taken into the cooling air duct from the bottom outside air take-in port via the lattice window of the drive part support frame.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a traveling carriage, and more particularly, to a traveling carriage capable of ensuring a sufficient amount of cooling air supplied from outside the machine to be supplied to a radiator for cooling an engine.

  Conventionally, there exists what was disclosed by patent document 1 as one form of traveling carts. That is, Patent Document 1 discloses a traveling carriage that can be equipped with a roll baler device, and this traveling carriage is provided with a prime mover portion including an engine, a radiator for cooling the engine, and the like at a front portion on a body frame. In addition, a driving part support frame is continuously extended outwardly on the right side of the right side of the machine body frame, and the driving part is disposed on the driving part support frame. A hollow, flat case-shaped protective side wall is provided on the right side of the driver's seat provided in the driver's section, and a radiator and a right outer side outside the machine through a side air inlet provided in the protective side wall below the driver's seat. A cooling air duct with a rectangular tube shape that communicates with the cooling air duct, and a rear air intake port is formed on the back surface of the cooling air duct, and outside air is introduced into the cooling air duct from the side air intake port and the rear air intake port. The cooling air can be sucked and supplied to the radiator through the cooling air duct from outside the apparatus. A dustproof net is stretched between the side air inlet and the rear air inlet. In addition, when the dust-proof mesh at the rear intake port is clogged, the cooling air can be prevented from becoming clogged by pumping part of the cooling air from the inside to the dust-proof mesh at the intake port. It has a clogging elimination structure that can be secured

JP2011-143894A

  However, since the traveling cart described above is provided with a clogging elimination structure, which increases the manufacturing cost, it has been desired to develop a technology that can reduce the cost and ensure good cooling efficiency of the radiator.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a traveling vehicle that can reduce the manufacturing cost and ensure good cooling efficiency of a radiator.

The invention described in claim 1
A machine frame is provided on a pair of left and right traveling parts, and a prime mover part consisting of an engine, a radiator for cooling the engine, etc. is disposed on the front part of the machine frame, and various operations are driven by the engine on the rear part on the machine frame. A traveling cart that can be equipped with a device,
A driving part support frame formed in a lattice frame shape and having a lattice window is continuously connected to the front part on either one of the left and right sides of the airframe frame so as to protrude outward on one side, and the driving part is provided on the driving part support frame. A cooling air duct is provided below the driver's seat provided in the driving section to communicate one side outside, which is outside the machine, and the radiator in the left-right direction, and from the outside of the radiator through the cooling air duct. Cooling air can be supplied to the
A bottom outside air intake is provided at the bottom of the cooling air duct so that outside air serving as cooling air can be taken into the cooling air duct from the bottom outside air intake through the lattice window of the operation unit support frame.

  According to the first aspect of the present invention, a bottom outside air intake is provided at the bottom of the cooling air duct, and outside air serving as cooling air can be taken into the cooling air duct from the bottom outside air intake through the lattice window of the operation unit support frame. For this reason, the possibility that various working devices, in particular, dust or dust generated from the roll baler device is sucked from the bottom outside air intake port is reduced. Therefore, it is possible to sufficiently secure the air volume of the cooling air supplied from the bottom outside air intake through the cooling air duct to the radiator, and it is possible to satisfactorily ensure the cooling efficiency of the radiator.

Invention of Claim 2 is invention of Claim 1, Comprising:
A front-side outside air intake is also provided on the front surface of the cooling air duct, and outside air serving as cooling air can be taken into the cooling-air duct through the front-side outside air intake.

  In the second aspect of the present invention, a front surface outside air intake is also provided in the front portion of the cooling air duct located at a position separated from the various working devices, particularly the roll baler device, and the front air outside air inlet is provided in the cooling air duct. Since it is possible to take in outside air as cooling air, the amount of outside air taken into the cooling air duct can be increased, and the amount of cooling air supplied to the radiator from outside the machine through the cooling air duct can be increased. Can do.

Invention of Claim 3 is invention of Claim 1 or 2, Comprising:
The cooling air duct is formed by arranging an upper duct and a lower duct in parallel in the upper and lower stages,
On the front and rear surfaces of the upper duct, the upper front and rear exterior air intakes are provided so that the outside air can be taken into the upper duct through both external air intakes.
The front of the lower duct is provided with a lower front air intake, and the bottom of the lower duct is provided with a bottom air intake so that the outside air can be taken into the lower duct through both external intakes. It is characterized by that.

  In the invention according to claim 3, the cooling air duct is formed by arranging the upper duct and the lower duct in parallel in the upper and lower stages, and a sufficient amount of cooling air is supplied to the radiator from the outside of the machine through each duct. Since the outside air intake is formed in each duct, the cooling efficiency of the radiator can be ensured satisfactorily.

Invention of Claim 4 is invention of any one of Claims 1-3, Comprising:
Each outside air intake is provided with a dustproof net.

  In the invention according to the fourth aspect, since the dust-proof nets are stretched at the outside air intakes, the dust-proof effect of the external air flowing into the cooling air duct via the dust-proof nets can be ensured. In particular, even if dust adheres to the dust screen stretched at the bottom outside air intake, the dust falls by its own weight when the engine is turned off (driving stopped state) and is naturally removed from the dust screen. It is. As a result, the trouble of cleaning to remove dust and the like from the dust screen can be saved.

  According to the present invention, a bottom outside air intake is also provided at the bottom of the cooling air duct so that outside air can be taken into the cooling air duct from the bottom outside air intake, and the radiator is passed from the outside of the machine through the cooling air duct. A sufficient amount of cooling air can be secured. As a result, in the traveling vehicle according to the present invention, the manufacturing cost can be reduced and the cooling efficiency of the radiator can be ensured satisfactorily.

The left view of the traveling trolley | bogie which concerns on this embodiment. The front view of the traveling trolley | bogie which concerns on this embodiment. The rear view of the traveling vehicle which concerns on this embodiment. FIG. 2 is a plan view of a traveling carriage according to the present embodiment. The bottom view of the traveling vehicle which concerns on this embodiment. The right view of the traveling trolley | bogie which concerns on this embodiment equipped with the roll baler. The perspective explanatory view of the traveling trolley which shows a cooling wind duct. The cross-sectional left view of the driving | operation part which shows a cooling wind duct. Cross-sectional left side explanatory drawing of the operation part which shows a cooling air path. Cross-sectional back explanatory drawing of the operation part which shows a cooling air path. Exploded perspective view of a cooling air duct as seen from the front side lower side. Exploded perspective view of the inside of the cooling air duct as seen from the lower front side.

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 6, reference numeral 1 denotes a traveling carriage according to the present embodiment, and reference numeral 2 denotes a roll baler 2 as various working devices equipped on the traveling carriage 1. First, the traveling cart 1 having the characteristic configuration of the present embodiment will be described, and then the roll baler 2 will be described.

[Schematic description of traveling cart]
As shown in FIGS. 1 to 6, the traveling carriage 1 has a support frame 20 interposed between a pair of left and right traveling units 10 and 10, and an airframe frame 30 is attached to the support frame 20. The body frame 30 is formed in a rectangular lattice frame shape in plan view, and is arranged in a horizontal plane immediately above the traveling units 10 and 10. A prime mover unit 40 including an engine 41, a radiator 42 for cooling the engine, a cooling fan 43 for cooling the radiator, and the like is disposed at the front part on the body frame 30, and the engine 41 is disposed at the rear part on the body frame 30. It is possible to equip various working devices such as a roll baler 2 driven by the motor. The cooling fan 43 is interlocked and connected via a fan shaft 44 protruding from the engine 41 to the right side, and is directed to the right side. The cooling fan 43 is rotated by the engine 41 so as to perform an intake operation. A shroud 48 surrounds the cooling fan 43.

  An operating part support frame 50 formed in a lattice frame shape and having a lattice window 57 is disposed on one side outside (in this embodiment) on either the left or right front part of the body frame 30 (right front part in the present embodiment). The driving unit 60 is arranged on the driving unit support frame 50 so as to extend outwardly on the right side).

  The operation unit support frame 50 is formed of a planar frame 51 and a three-dimensional frame 52 formed as a frame on the planar frame 51. In particular, as shown in FIG. 5, the planar frame 51 is formed so that the front-rear width is substantially half of the front-rear width of the body frame 30 and the left-right width is substantially half of the left-right width of the body frame 30.

  That is, the planar frame 51 includes a pair of front and rear main frame forming pieces 51a and 51b formed by extending outward from the right side of the right frame forming piece 32 of the body frame 30 and a right frame forming piece in front of the pair. A pair of front and rear sub-frame forming pieces 51c and 51d formed by extending outward from the right side of the front part 32, and front and rear extending in the front-rear direction by being connected to the right end portions of these frame forming pieces 51a to 51d. A direction extending frame forming piece 51e and a bracing frame forming piece 51f connected in a bracing manner between the rear end portion of the front and rear direction extending frame forming piece 51e and the rear end portion of the right frame forming piece 32 are provided. The planar frame 51 is formed in a lattice frame shape in plan view by these frame forming pieces 51a to 51d, and a plurality of rectangular lattice windows 57 penetrating upward are aligned in the front-rear direction. . 53 is a lower leg piece protruding from the front part of the longitudinally extending frame forming piece 51e.

  In particular, as shown in FIGS. 7 to 9, the three-dimensional frame 52 includes a pair of left and right front rising frames 52 a and 52 a, midway rising frames 52 b and 52 b, and rear rising frames 52 c and 52 c on the planar frame 51. The front left and right extending frame 52d is horizontally placed between the front rising frames 52a and 52a, the middle right and left extending frame 52e is horizontally placed between the middle rising frames 52b and 52b, and the rear rising frame 52c. , 52c, and a pair of left and right front and rear direction extending frames 52g, 52g between the front rising frames 52a, 52a and the upper ends of the rear rising frames 52c, 52c, A three-dimensional frame is formed in a quadrangular frame shape.

  The operation unit 60 is formed on the operation unit support frame 50. That is, the step surface portion 61 is stretched on the front portion of the operating portion support frame 50 on the three-dimensional frame 52 to form the step portion 62. A steering column 63 is erected at the front portion of the step portion 62, and a steering wheel 64 is attached to the upper end portion of the steering column 63. On the other hand, a driver seat 65 is disposed behind the steering wheel 64, a side column 66 is disposed on the left side of the driver seat 65 and the steering wheel 64, and various operation levers (not shown) are provided on the side column 66. Provided. The driver's seat 65 is placed on the cooling air duct 70 disposed at the rear part on the operating part support frame 50 and supported by the cooling air duct 70. On the right side of the driver's seat 65, a hollow, flat case-shaped protective side wall 90 is erected so that the side faces to the left and right sides, and the protective side wall 90 is seated on the driver's seat 65 and steered. The operator who operates the wheel 64 and the like is protected from the right side. Reference numeral 67 denotes an upper foot piece protruding from the right side wall of the step portion 62. The upper foot piece 67 is used as a foot foot when the operator gets on and off the step portion 62 together with the lower foot piece 53 described above. 68 is a front cover, and 69 is a side cover.

  As shown in FIGS. 6, 10, and 11, the protective side wall 90 has an inner surface portion 91 and an outer surface portion 92 that are arranged to face each other in the left-right direction, and a periphery interposed between the outer peripheral edge portions. Formed in a flat case shape from the end surface portion 93, a rectangular inner upper outside air inlet 94 and an inner lower outer air inlet 95 are formed at the upper and lower portions of the inner side surface portion 91, respectively, An outer outside air intake 96 is formed that opens over the half. The inner upper outside air inlet 94, the inner lower outside air inlet 95, and the outer outside air inlet 96 communicate in a penetrating manner in the left-right direction.

  A communication case 100 formed in a flat rectangular box shape is arranged in a standing manner on the left side of the operation unit 60 at a position facing the protective side wall 90, and the communication case 100 and the protective side wall are formed. A cooling air duct 70 is interposed between the cooling air duct 90 and the air passage 90 in the left-right direction. A radiator 42 is disposed in the vicinity of the left side of the communication case 100, and the protective side wall 90 and the radiator 42 are communicated in the left-right direction via the cooling air duct 70, so that the protective side wall 90 Cooling air can be supplied to the radiator 42 through the cooling air duct 70.

  As shown in FIGS. 7 to 12, the cooling air duct 70 is formed by arranging a cylindrical upper duct 71 and a lower duct 72 having an axis line in the left-right direction in parallel in the upper and lower stages. That is, the upper duct 71 is formed by connecting the left duct forming body 73 and the right duct forming body 74 in a left and right communication state. The left duct forming body 73 is formed in a rectangular tube shape extending from the upper part of the communication case 100 to the right side, and penetrates the side column 66 in a transverse state. The right duct forming body 74 has a bottom surface portion forming piece 75 formed in the shape of a quadrangular plate at the rear of the three-dimensional frame 52, and a gate-shaped three surface portion forming piece 76 in a side view on the bottom surface forming portion 75. It is formed by straddling. The lower half portion of the left end portion of the three-surface portion forming piece 76 is connected in communication with the lower portion of the right end portion of the left duct forming body 73. The upper half of the left end portion of the three-surface portion forming piece 76 is a left-side surface of the three-surface portion forming piece 76 that is connected to the left duct-forming body 73 by stretching a quadrangular plate-like left wall plate 77 in an erected manner. Is blocked. The right side end portion of the three-surface portion forming piece 76 is in contact with and connected to the inner side surface portion 91 of the protective side wall portion 90 so as to surround the inner upper outside air intake port 94 of the protective side wall portion 90, The inside of the protective side wall 90 and the inside of the right duct forming body 74 are communicated with each other through the outside air inlet 94.

  The lower duct 72 is formed in a quadrangular cylindrical shape extending in the left-right direction, and is disposed in the rear part of the space formed by the planar frame 51 and the three-dimensional frame 52. The left end of the lower duct 72 is connected to the lower part of the communication case 100, while the right end of the lower duct 72 is a gasket attached to the peripheral lower portion of the inner lower outside air intake 95 of the protective side wall 90. 97 is connected to communicate with the pressed state.

  With this configuration, as shown in FIG. 10, when the cooling fan 43 is rotationally driven by the engine 41 to perform the intake operation, outside air is sucked into the protective side wall 90 through the outside outside air intake 96, The outside air sucked into the protective side wall 90 is introduced into the upper duct 71 through the inner upper outside air intake 94, and is introduced into the lower duct 72 through the inner lower outside air intake 95, and the inside of the upper duct 71 and the lower stage are introduced. It is led out from the duct 72 through the communication case 100 toward the radiator 42. In this way, the cooling air sucked from the outside outside air inlet 96 to the radiator 42 through the upper and lower ducts 71 and 72 that are the cooling air duct 70 while forming the first cooling air passage W1 and the second cooling air passage W2. Are supplied in parallel in the vertical direction, and the radiator 42 is cooled.

  Next, a characteristic configuration provided in the traveling carriage 1 according to the present embodiment configured as described above will be described.

[Explanation of the characteristic structure of the traveling carriage]
As shown in FIG. 5 and FIGS. 10 to 12, the lower duct 72 is provided with a bottom outside air intake 80 at the bottom, and outside air flows from the bottom outside air intake 80 through the lattice window 57 of the operation unit support frame 50. Suction is performed while forming a third cooling air passage W3 in the duct 72. Further, the possibility of sucking dust, dust or the like generated from various working devices, particularly the roll baler device, is reduced from the bottom outside air inlet 80. Therefore, it is possible to sufficiently secure the amount of cooling air supplied to the radiator 42 through the lower duct 72 while forming the third cooling air passage W3 from the bottom outside air intake port 80, and the first to third cooling air passages W1. The cooling efficiency of the radiator 42 by the cooling air flowing along .about.W3 can be ensured satisfactorily.

  A front-side outside air intake is also provided on the front surface of the cooling air duct 70 so that outside air serving as cooling air can be taken into the cooling air duct 70 through the front-side outside air intake. As described above, the front-side outside air intake is also provided in the front portion of the cooling air duct 70 located at a position separated from the various work devices, particularly the roll baler device, and the cooling air is introduced into the cooling air duct through the front-side outside air intake. Therefore, it is possible to increase the amount of outside air taken into the cooling air duct 70 and increase the amount of cooling air supplied from the outside of the machine to the radiator 42 through the cooling air duct 70. Can do.

  In this embodiment, the cooling air duct 70 is formed by arranging the upper duct 71 and the lower duct 72 in parallel in the upper and lower stages as described above, and the front duct outside the front duct is disposed on the front face of the upper duct 71. An upper front air intake 81 is formed as an inlet, and an upper rear air intake 82 is provided on the rear surface, and the fourth cooling air passage W4 and the fourth cooling air passage W4 are formed in the upper duct 71 through both the external air intakes 81 and 82. It is possible to take in outside air. On the other hand, a lower front air intake 83, which is a front external air intake, is provided on the front surface of the lower duct 72, and the above-described bottom external air intake 80 is provided on the bottom of the lower duct 72. The outside air serving as the fifth cooling air passage W5 and the third cooling air passage W3 can be taken into the lower duct 72 through 83, 80.

  In this manner, the cooling air duct 70 is formed by arranging the upper duct 71 and the lower duct 72 in parallel in the upper and lower stages, and the first cooling air passage W1 and the first cooling air duct W1 and the second inside the ducts 71 and 72 from outside the machine. 2 The cooling air supplied to the radiator 42 along the cooling air passage W2 can be sufficiently secured, and the outside air intakes 81 to 83 are formed in the ducts 71 and 72, respectively. , 72 through the outside air intakes 81 to 83, the outside air can be taken in so that the third cooling air passage W3 to the fifth cooling air passage W5 are formed, and the cooling efficiency of the radiator 42 is ensured satisfactorily. Can do. A dustproof net 84 is stretched at each of the outside air inlets 80 to 83 to ensure a dustproof effect of the external air flowing into the ducts 71 and 72 via the dustproof net 84. That is, the dust-proof net 84 is formed in a mesh shape so that only cooling air that is outside air is allowed to pass therethrough and dust such as soot is not allowed to pass.

  Furthermore, each outside air intake 80-83 is demonstrated more concretely. Two bottom outside air inlets 80 are formed in a rectangular shape at the front and rear portions of the rectangular plate-shaped bottom mounting body 110. A stepped upper convex formation body 111 having an opening in the front-rear direction is attached to the upper surface of the bottom mounting body 110, and a flat space is formed between the lower surface of the stepped upper convex formation body 111 and the upper surface of the bottom mounting body 110. 112 is formed. A large number of flow holes 113 that open in the vertical direction are formed in an orderly manner on the upper surface portion of the stepped upper protrusion forming body 111. The diameter of the circulation hole 113 is larger than the mesh of the dustproof net 84. The bottom mounting body 110 inserts a stepped upper convex forming body 111 from below through a mounting opening 114 formed in the bottom surface portion 72 a of the lower duct 72, and the stepped upper convex forming body 111 is inserted into the lower duct 72. In addition, the peripheral portion of the bottom mounting body 110 is connected to the bottom surface portion 72 a of the lower duct 72 by a screw 115.

  With such a configuration, the outside air is sucked from below the planar frame 51 through the lattice window 57 to the bottom outside air intakes 80, 80 in which the dust net 84 is stretched, and the bottom outside air intakes 80, 80 enter the flat space 112. The third cooling air passage W3 is formed as a cooling air that is rectified by passing through the flow hole 113 from the flat space 112 and forms the third cooling air passage W3 in a rectified state along the second cooling air passage W2. Then, cooling air that flows smoothly through the lower duct 72 and the inside of the communication case 100 is supplied to the radiator 42. As a result, the radiator 42 is cooled by the cooling air. Even if dust or the like adheres to the dust screens 84 and 84 stretched at the bottom outside air intakes 80 and 80, the dust or the like falls under its own weight when the engine 41 is turned off (driving stop state). Naturally, it is removed from the dust nets 84,84. As a result, the trouble of cleaning to remove dust and the like from the dust nets 84, 84 can be saved.

  The upper front surface outside air intake 81 is formed in a side-view portal shape from a rectangular plate-shaped front surface portion 76a and a rear surface portion 76b that are opposed to each other in the front-rear direction, and a rectangular plate-shaped upper surface portion 76c provided between these upper end portions. On the front surface portion 76a of the formed three-surface portion forming piece 76, two pieces formed by opening in a square shape are juxtaposed side by side. On the rear surface of the front surface portion 76a, a stepped rear convex portion forming body 120 that is opened only in the right direction is attached, and an upper front portion is provided between the front surface of the stepped rear convex portion forming body 120 and the rear surface of the front surface portion 76a. A flat space 121 is formed.

  With such a configuration, the outside air is sucked from below the planar frame 51 through the lattice window 57 into the upper front portion outside air intakes 81 and 81 in which the dust-proof net 84 is stretched, and from the upper front portion outside air intake ports 81 and 81. The fourth cooling air passage W4 is formed as the cooling air sucked into the upper front flat space 121, and merges with the first cooling air passage W1 from the right side of the upper front flat space 121, and the upper duct 71 Furthermore, the cooling air smoothly flows through the communication case 100 and is supplied to the radiator 42. As a result, the radiator 42 is cooled by the cooling air.

  The upper rear surface portion outside air intake 82 has two rear surface portions 76b formed in a square shape on the rear surface portion 76b of the three surface portion forming piece 76 arranged in parallel on the left and right. A stepped front convex forming body 130 having an opening in the vertical direction is attached to the front surface of the front surface portion 76a, and a rear flat space 131 is provided between the rear surface of the stepped front convex forming body 130 and the front surface of the rear surface portion 76b. Is forming. A large number of flow holes 132 that open in the front-rear direction are formed in an orderly manner on the front surface portion of the stepped front convex portion forming body 130. The diameter of the flow hole 132 is formed larger than the mesh of the dust-proof net 84.

  With such a configuration, the outside air is sucked from below the planar frame 51 through the lattice window 57 into the upper rear surface outside air intakes 82 and 82 in which the dust screen 84 is stretched, and from the upper rear surface outside air intake ports 82 and 82. The air is sucked into the rear flat space 131 and passes through the flow hole 132 from the rear flat space 131 to be rectified cooling air to form the fifth cooling air passage W5. Cooling air that flows smoothly through the upper duct 71 and further through the communication case 100 along the cooling air passage W <b> 1 is supplied to the radiator 42. As a result, the radiator 42 is cooled by the cooling air. Reference numeral 142 denotes a guide plate disposed in the upper duct 71, and the guide plate 142 is disposed in a downwardly inclined manner from the middle portion of the stepped front convex portion forming body 130 toward the front and lower side, and is passed through the circulation hole 132 to the upper duct. The outside air flowing into 71 is directed downward in a downwardly inclined manner toward the front and lower side.

  The lower front portion outside air intake 83 has two front openings 72 b formed in a square shape on the front portion 72 b of the lower duct 72 arranged in parallel on the left and right. On the rear surface of the front surface portion 72b, a stepped rear convex portion formation body 140 that is opened only in the downward direction is attached to face the lower front surface portion outside air intakes 83 and 83, and the stepped rear convex portion formation body 140 is attached. A lower front flat space 141 is formed between the front surface and the rear surface of the front surface portion 72b.

  With such a configuration, the outside air is sucked from below the planar frame 51 through the lattice window 57 into the lower front portion outside air intakes 83, 83 in which the dust screen 84 is stretched, and from the lower front portion outside air intakes 83, 83. The cooling air sucked into the lower front flat space 141 is formed as a sixth cooling air passage W6, joined from the lower part of the lower front flat space 141 with the second cooling air passage W2, and the lower duct 72, Furthermore, the cooling air smoothly flows through the communication case 100 and is supplied to the radiator 42. As a result, the radiator 42 is cooled by the cooling air.

  The communication case 100 is arranged in such a manner that a left side surface portion 101 and a right side surface portion 102 formed in a quadrangular plate shape are opposed to each other on the left and right sides, and the peripheral surface portion 103 is interposed between the peripheral edge portions of the left and right side surface portions 101, 102. Is formed. The left side surface portion 101 faces the radiator 42 in a close state, and the left side surface portion 101 is formed with an opening for cooling air outlet 108 and is led out through the cooling air outlet port 108 (suctioned by the cooling fan 43). ) The radiator 42 is cooled by the cooling air.

  A rectangular outside air inlet 104 is formed at the front upper part of the right side surface portion 102, and a dust screen 84 is stretched over the outside air inlet 104. In the communication case 100, a stepped protrusion forming body 105 having an opening in the front-rear direction is attached to the inner surface of the right side face 102 so as to face the outside air inlet 104, and the right side surface of the stepped protrusion forming body 105 A flat space 106 is formed between the left side surface (inner surface) of the right side surface portion 102. The stepped protrusion forming body 105 is regularly formed with a large number of flow holes 107 that open in the left-right direction. The diameter of the circulation hole 107 is larger than the mesh of the dustproof net 84.

  With such a configuration, the outside air is sucked into the outside air inlet 104 with the dust net 84 extending from the lower side of the planar frame 51 through the lattice window 57, and is sucked into the flat space 106 from the outside air inlet 104. The air is rectified by passing through the circulation hole 107 from the space 106, and is supplied to the radiator 42 as cooling air flowing smoothly through the communication case 100 in the rectified state. As a result, the radiator 42 is cooled by the cooling air.

[Specific description of the traveling cart]
1 to 6, the traveling cart 1 includes a pair of left and right traveling units 10, 10, a support frame 20 interposed therebetween, an airframe frame 30 attached to the support frame 20, and an airframe frame 30. And the like, and the roll baler 2 is mounted on the rear portion of the machine frame 30 so that the roll bale 2 is molded while the vehicle is running.

  The traveling unit 10 has a driving wheel 13 attached to a front end portion of a traveling frame 11 formed by extending in the front-rear direction via a driving shaft 12, and a driven wheel 15 via a driven shaft 14 at the rear end portion of the traveling frame 11. And a crawler belt 16 is wound between the wheels 13 and 15. Reference numeral 17 denotes a rolling wheel. A transmission case 19 is interposed between the front end portions of the traveling frames 11, 11 of the pair of left and right traveling units 10, 10 via drive shaft cases 18, 18.

  The support frame 20 is formed with support frame forming pieces 21 and 21 extending in the left-right direction between the front and rear portions of the traveling frames 11 and 11. Reference numeral 22 denotes a connection piece, and the body frame 30 is attached to the support frame 20 via the connection piece 22.

  The body frame 30 includes a pair of left and right left frame forming pieces 31 and 32 formed by extending in the front-rear direction, and a pair of front and rear front frame forming pieces 33 and rear frame forming pieces formed by extending in the left-right direction. 34, and a plurality of left and right extension forming pieces 35 formed by extending in the left and right directions are spaced in the front and rear direction between the left and right frame forming pieces 31 and 32. A longitudinally extending stretch piece 36 extending in the longitudinal direction is laid between the laterally extending stretched pieces 35, 35 facing in the longitudinal direction and between the laterally stretched formed piece 35 and the rear frame forming piece 34. Thus, it is formed in a lattice shape in plan view. In the front part of the left frame forming piece 31 and the right frame forming piece 32, gate-shaped frame forming pieces 37, 37 are erected on the left and right sides, respectively, and between the two gate-shaped frame forming pieces 37, 37 in the left-right direction. A plurality of portal frame connecting pieces 38, 38 extending in a straight line are installed to form a three-dimensional frame 39, and an engine room R for disposing the motor unit 40 is formed in the frame 39. .

  The prime mover section 40 is disposed on the front part of the body frame 30 in the engine room R. The engine 41 is mounted on the front part of the body frame 30 and a fan shaft 44 projects from the engine 41 to the right side. Then, the cooling fan 43 is attached to the fan shaft 44, the radiator 42 is disposed on the right side of the cooling fan 43 surrounded by the shroud 48, and the communication case 100 is disposed on the right side of the radiator 42. doing. The radiator 42 cools the cooling water of the main body of the engine 41 with cooling air. The engine 41 is linked to a transmission case 19 attached to the front part of the body frame 30 so that the traveling unit 10 can be driven to travel through the transmission case 19. In addition, the drive unit of the roll baler 2 is linked to the engine 41 so that the roll baler 2 can be driven. Reference numeral 45 denotes an intake pipe having a base end connected to the intake part 41 a of the engine 41, and an air cleaner 46 for purifying outside air is attached to the distal end of the intake pipe 45.

  The air cleaner 46 is disposed at a corner formed by the lower surface portion of the upper duct 71 and the rear surface portion of the lower duct 72, and the outside air suction pipe 47 is extended from the air cleaner 46, so that the distal end portion of the outside air suction pipe 47 is provided. Is piped into the lower duct 72 from the rear surface. The outside air sucked into the lower duct 72 through the outside air suction pipe 47 is sucked into the air cleaner 46, the outside air is purified in the air cleaner 46, and the purified outside air is supplied to the engine 41.

[Explanation about roll baler]
Next, a description will be given of the roll baler 2 as various working devices equipped in the traveling carriage 1 configured as described above with reference to FIG. That is, the roll baler 2 includes a harvesting unit 150 that harvests forage crops, a transport unit 160 that transports the forage crops harvested by the harvesting unit 150, and a roll bale that takes in the forage crops transported by the transport unit 160 (not shown). And the like.

  The mowing unit 150 includes a cover 151, a drive shaft 152, a flail blade 153, a fixed blade 154, and the like, and is disposed in front of the machine body frame 30 so that the forage crops planted in the field can be harvested. doing. That is, the cutting unit 150 pivotally mounts the drive shaft 152 in the cover 151 in the horizontal direction, and the drive shaft 152 has the flail blades 153 radially arranged at predetermined intervals and at predetermined angles. The fixed blade 154 is disposed in the cover 151 so as to face the flail blade 153 in the horizontal direction. Further, the flare blade 153 can cut the napped forage crop (gutter) and generates a conveying wind toward the conveying unit 160 by rotation, so that the cut forage crop jumps into the conveying unit 160. It is configured to raise.

  The transport unit 160 includes a transport duct 161, a support arm 162, an elevating cylinder 163, and the like. The transport unit 160 is disposed on the upper front side of the body frame 30, and transports the forage crop cut by the mowing unit 150 to the forming unit 170. Is. The transport duct 161 extends in the front-rear direction and is curved upwardly to form a substantially inverted J shape when viewed from the side, and a base end (front end) is connected to the rear side of the upper side of the cutting unit 150. On the other hand, a front end portion (rear end portion) is inserted into and communicated with the front side of the upper surface of the molding portion 170. And the conveyance part 160 is comprised so that the forage crop cut by the cutting part 150 can be thrown in in the shaping | molding part 170 through the conveyance duct 161 with conveyance wind. The support arm 162 is formed by extending in the front-rear direction, and the front end is connected to the transport duct 161, while the rear end is connected to the frame 39 of the body frame 30 so as to be swingable about the axis in the left-right direction. Yes. The elevating cylinder 163 is constructed between the front end portion of the machine body frame 30 and a midway portion of the transport duct 161 so that it can be extended and contracted in the vertical direction. Then, by moving the elevating cylinder 163 to extend and contract, the conveying duct 161 and the cutting unit 150 are configured to be movable up and down via the support arm 162 with the rear end portion of the support arm 162 as the center.

  The molding unit 170 includes a fixed case body 171, an opening / closing case body 172, a swing shaft 173, an opening / closing cylinder 174, a roll bale forming part 175, etc. A crop is formed into a roll bale. That is, the molding part 170 is formed in a front / rear split shape by the fixed case body 171 and the open / close case body 172. The rear upper end portion of the fixed case body 171 is pivotally connected to the front upper end portion of the open / close case body 172 via a swing shaft 173 whose axis is directed in the left-right direction. An open / close cylinder 174 is provided between the upper surface portion of the fixed case body 171 and the upper surface portion of the open / close case body 172 so that the forage crop expansion / contraction direction is the front-rear direction. The open / close side case body 172 is configured to be openable / closable around the swing shaft 173 by extending and retracting the open / close cylinder 174. In the upper part on the front side of the fixed case body 171, an input port 177 into which the feed crop is input through the transport duct 161 is formed.

  The roll bale forming portion 175 is configured to rotatably support a plurality of rotating rollers 176 whose axial direction is directed in the left-right direction in the fixed-side case body 171 and the open / close-side case body 172 and to face the input port 177. The side lower portion is arranged in a substantially C shape in a side view. The plurality of rotating rollers 176 are configured to be rotatable in the same direction by power transmitted from the engine 41 via a counter unit (not shown). And the forage crop thrown in from the insertion port 177 is thrown into the inside of the roll bale formation part 175, and is formed on a cylinder with the some rotating roller 176. FIG. The newly introduced feed crop is wound around the outer diameter portion of the feed crop already formed on the cylinder inside the roll bale forming section 175 in a stacked state, and formed into a roll bale with a predetermined outer diameter. The

  A plurality of rotating rollers 176 that form the rear portion of the roll bale forming portion 175 are disposed in the open / close case body 172. That is, the roll bale forming unit 175 can open and close the rear end surface of the fixed side case body 171 in conjunction with the opening / closing operation of the open / close side case body 172 by the open / close cylinder 174, and the fixed roll bale is opened. It is made to discharge | release from the side case body 171 outside the apparatus.

  The roll bale forming operation and the discharge operation by the roll baler 2 configured in this way transmit the power of the engine 41 of the prime mover unit 40 to each drive unit of the roll baler 2 by operation of various operation levers in the operation unit 60. This can be appropriately performed by supplying pressure oil to the cylinders 163 and 174.

DESCRIPTION OF SYMBOLS 1 Traveling cart 2 Roller 30 Machine body frame 41 Engine 42 Radiator 43 Cooling fan 50 Operation part support frame 70 Cooling air duct 71 Upper duct 72 Lower duct 80 Bottom outside air inlet 81 Upper front outside air inlet 82 Upper rear air inlet 83 Lower front air intake 84 Dust-proof net 100 Communication case

Claims (4)

A machine frame is provided on a pair of left and right traveling parts, and a prime mover part consisting of an engine, a radiator for cooling the engine, etc. is disposed on the front part of the machine frame, and various operations are driven by the engine on the rear part on the machine frame. A traveling cart that can be equipped with a device,
A driving part support frame formed in a lattice frame shape and having a lattice window is continuously connected to the front part on either one of the left and right sides of the airframe frame so as to protrude outward on one side, and the driving part is provided on the driving part support frame. A cooling air duct is provided below the driver's seat provided in the driving section to communicate one side outside, which is outside the machine, and the radiator in the left-right direction, and from the outside of the radiator through the cooling air duct. Cooling air can be supplied to the
A traveling cart provided with a bottom outside air intake at the bottom of the cooling air duct so that outside air as cooling air can be taken into the cooling air duct from the bottom outside air intake through the lattice window of the operation unit support frame. .   The traveling carriage according to claim 1, wherein a front-side outside air intake is provided also in a front portion of the cooling air duct so that outside air serving as cooling air can be taken into the cooling-air duct through the front-side outside air intake. . The cooling air duct is formed by arranging an upper duct and a lower duct in parallel in the upper and lower stages,
On the front and rear surfaces of the upper duct, the upper front and rear exterior air intakes are provided so that the outside air can be taken into the upper duct through both external air intakes.
The front of the lower duct is provided with a lower front air intake, and the bottom of the lower duct is provided with a bottom air intake so that the outside air can be taken into the lower duct through both external intakes. The traveling carriage according to claim 2.   The traveling cart according to any one of claims 1 to 3, wherein a dust-proof net is stretched at each outside air inlet.

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