KR20190088411A - Combine - Google Patents

Abstract

The purpose of the present invention is to surely cover a potentiometer side linking member and a ground connection side linking member and simplify composition of a cover body. The cutting height detecting device (14) includes: a ground connection body (30) installed on one side of a plate member (23) to freely and vertically rotate; a potentiometer (31) installed on the other side of the plate member (23) in a fixed state and detecting the rotation angle of a potentiometer side detecting arm (51); a first rotary shaft (33) penetrating the plate member (23) from one side to the other side and supporting the ground connection body (30) connected to one end to vertically and freely rotate; a ground connection side detecting arm (52) linked to the potentiometer side detecting arm (51) when being connected to the other end of the first rotary shaft (33) at the same time, wherein the ground connection side detecting arm (52) inputs the rotation of the first rotary shaft (33) in the potentiometer (31); and a cover body (60) installed on the other side of the plate member (23) and covering at least the ground connection side detecting arm (52) and the potentiometer side detecting arm (51) between the cover body (60) and the plate member (23).

Description

Combine {COMBINE}

The present invention relates to a combine having a cutting height detecting device.

A combine is provided at a lower portion of a preliminary cutting section and includes a warp height detecting device for detecting the height of the preliminary warping section with respect to the ground. For example, the grass height detecting device described in Patent Documents 1 and 2 is constituted by a grounding member that is grounded on the ground and freely pivotable up and down, and a potentiometer that detects the turning angle of the grounding member.

Japanese Patent Publication No. 4457022 Japanese Patent Publication No. 5672293

However, in the warp height detecting device described in Patent Documents 1 and 2, since the potentiometer is housed in the case and the potentiometer is rotated up and down with the case, not only the case structure becomes complicated, but also the displacement space of the wiring connected to the potentiometer It was necessary to secure it.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has been made for the purpose of solving these problems, and the invention of claim 1 is characterized in that the present invention is characterized in that it comprises a preliminary part that is vertically connected to a front part of a traveling body, And a slat height detecting device for detecting a height of the slanting portion with respect to the ground, wherein the slat height detecting device is mounted on a lower portion of the pre-loading portion so as to follow the gas running direction and the height direction A potentiometer which is arranged in a fixed state on the other surface side of the plate member and detects a rotation angle of the potentiometer side coupling member; Through the other surface side, and supports the above-mentioned grounding body connected to one end side in a vertically rotatable manner A ground side coupling member which is connected to the other end side of the rotation shaft and is connected to the potentiometer side coupling member and inputs the rotation of the rotation shaft to the potentiometer; And a cover member that covers at least the ground side coupling member and the potentiel-side coupling member between the plate side member and the plate member.

According to a second aspect of the present invention, there is provided a combine according to the first aspect, wherein the leading end of the grounding member is configured so as to be capable of retracting from the proximal end of the grounding member in the left-right direction and the gas-

According to a third aspect of the present invention, there is provided a combine according to the first or second aspect, wherein the potentiometer has a detection axis that is parallel to the rotation axis and has a rotation angle of the potentiometer side coupling member rotating with the detection axis as a fulcrum And the ground side coupling member inputs the rotation of the rotation shaft to the potentiometer by engaging with the potion side coupling member, and the ground side coupling member is longer than the potion side coupling member And the engagement position of the ground side coupling member and the potentiometer side coupling member is further away from the detection axis as viewed from the rotation axis.

According to a fourth aspect of the invention, there is provided a combine according to any one of the first to third aspects, wherein the slitting height detecting device comprises a plate member, the grounding member and the potentiometer, And the one surface side is detachably mounted to the lower portion of the preloading portion.

According to the invention of claim 1, since the earthing body and the earthing side linking member are arranged to be distributed to the other surface side of the plate member and the ground side linking member and the potentiel-side linking member are covered between the plate member and the cover body Side coupling member and the potentiometer-side coupling member while ensuring that the configuration of the cover member is simplified, compared with the case where the ground-side coupling member is disposed on one surface side of the same plate member as the grounding member, It is possible to prevent the attachment of mud or spruce to the connecting portion with the coupling member. Further, since the potentiometer is disposed in a fixed state on the other surface side of the plate member, a displacement space of the wiring connected to the potentiometer becomes unnecessary.

According to the invention of claim 2, even when the grounding body is grounded in the field and the gas is backwardly or revolved, the leading end of the grounding body retreats in the gas lateral direction and the gas longitudinal direction, Can be prevented.

According to the invention of claim 3, since the length of the ground-side detection arm can be made long while the detection axis of the potentiometer is arranged close to the rotation axis of the earthing body, It can be compactly configured.

According to the invention of claim 4, since the slit height detecting device is detachably attached to the lower part of the preload part while being unitized, the assembling property and the maintenance property of the slit height detecting device can be improved. Further, since the one surface of the plate member on which the grounding member is disposed is detachably mounted to the lower portion of the pre-mounting portion, and the potentiometer is disposed on the other surface of the plate member, the grounding member and the potentiometer are disposed on one surface of the plate member The degree of freedom of arrangement can be increased and the assembly and adjustment can be facilitated.

1 is a left side view of a combine according to an embodiment of the present invention.
2 is a plan view of a combine according to an embodiment of the present invention.
Fig. 3 is a left side view of a dividing divider divider height detecting apparatus according to an embodiment of the present invention. Fig.
Fig. 4 is a right side view of the fountain divider and slit height detecting device according to the embodiment of the present invention. Fig.
5 is a front view of a fountain divider and a cut height detecting device according to an embodiment of the present invention.
Fig. 6 is a rear view of the fountain divider and slit height detecting device according to the embodiment of the present invention. Fig.
7 is a left side view showing a state in which the cutter-height detecting device according to the embodiment of the present invention is in a state of turning over the earthed body.
Fig. 8 is a left side view showing the grounding-object retracting operation (during backward travel) of the grass height detecting device according to the embodiment of the present invention. Fig.
9 is a left side view showing a grounding-object retracting operation (during turning) of the grassing-height detecting device according to the embodiment of the present invention.
10 is a left side view showing a grounding member retraction operation (at the time of cornering upper limit rotation and turning) of the cutter height detection device according to the embodiment of the present invention.
Fig. 11 is a left side view showing a detached state of the cut-grass height detecting device according to the embodiment of the present invention. Fig.
Fig. 12 is an exploded perspective view of the cut-grass height detecting device according to the embodiment of the present invention.
13 is a cross-sectional view of a main portion of a cutter height detecting device according to an embodiment of the present invention.
14 is a left side view in which a part of a cutter height detecting device according to the embodiment of the present invention is omitted.
Fig. 15 is a cross-sectional view of a main portion showing a modified example of the cutter height detecting device according to the embodiment of the present invention.

[combine]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2, (C) is a combine, and the combine (C) thereof is a combine (C), which is a combination of a traveling body 3 supported by a pair of right and left crawler traveling devices 1 A cabin 10 on which an operator is mounted to perform a steering operation and the like, and a pre-loading section 4 which is connected to the front side of the running vehicle 3 so as to be movable up and down.

The preloading section 4 is extended from the front side of the traveling base 3 toward the front lower side and is supported by the supporting body 6 which is vertically rotatable with the base end of the rear end as a turning point , And a hydraulic cylinder (not shown) connected to the side of the support 6 and the side of the traveling base 3 is expanded and contracted so that the preloading portion 4 is driven to ascend and descend.

The preloading section 4 divides the grain cullet of the package into the cut-off side and the non-cut side by a plurality of (7 in the illustrated example) side-by-side branching divider 7 in the left- , And a cut-off operation is performed in which the cutter is raised by the elevator (8) and scraped on the side of the preheating part (4), and the cutter is cut by a cutter (not shown) . The curved portion cut by the preload portion 4 is conveyed by the conveyance device of the preload portion 4 to the tumbling device 12 provided on the left side portion of the traveling base 3 and the left side of the tumbling device 12 To the feed chain 13 installed in the feed chain 13.

The bottom height detection device 14 (hereinafter referred to as " floor height ") for detecting the height of the preload part 4 And the preloading section 4 is provided on the basis of the ground height detected by the slicing height detecting device 14 so that the elevating position of the preloading section 4 at the time of the cutting work is set to a height As shown in FIG.

The cut-off height detecting device 14 is provided in each of the two branching dividers 7 adjacent to the inside of the dividers 7L and 7R at both the left and right ends in the illustrated example, But may be provided in other fountain divider 7 or may be one or more than three. The detailed configuration of the fountain divider 7 and the slitting height detecting device 14 will be described later.

The slits passed to the threshing device 12 are sandwiched between the feed chain 13 and the holding rails 16 disposed on the upper side of the feed chain 13, (Not shown) of the threshing device 12 and is conveyed backward. The threshing bucket is formed in a tubular shape extending in the front-rear direction and is configured to be rotationally driven around an axis in the front-rear direction. By the rotational drive of the threshing cylinder, The tip end of the scallop is subjected to a threshing process so that the straw is discharged. The processed material subjected to the threshing treatment is dropped and supplied to a sorting chamber (not shown) arranged below the threshing trough.

The processed material that has fallen into the sorting chamber is sorted by turning and wind sorting, and is selected as grain (grain) such as rice noodles and waste such as straw crumbs. The discharged material is discharged from the rear end of the traveling gas 3 to the outside of the apparatus while the grain is carried and stored in the grain tank 17 located on the right side of the threshing device 12 in the traveling base 3. [

On the other hand, the straw discharge is transmitted from the rear end side of the feed chain 13 to the straw discharge conveyor 18 disposed behind the feed chain 13 and is conveyed back toward the rear end side of the traveling body 3 Is discharged from the rear end of the traveling vehicle 3 as it is, or is discharged to the outside of the apparatus after the cutting processing.

The grain stored in the grain tank 17 is transported through an auger 19 which is supported at its rear end on the right side of the rear end of the traveling base 3 and pivots and vertically rotates up and down the base end in the up- And discharged out of the apparatus.

Next, the configuration of the split beam divider 7 and the beam height detector 14 provided in the split beam divider 7 will be described with reference to Figs. 3 to 10. Fig.

[Split divider]

The split branch divider 7 is provided with a branching frame 21 extending from the support 6 to the front end side of the preloading section 4 and a mounting plate 22 provided at the front end of the branching frame 21, (Not shown). The fountain divider 7 of the present embodiment includes a minute plate 24 fixed to a mounting plate 22 and projecting forward, a guide member 26 provided on the upper face side of the minute plate 24, A pair of left and right guide rods 27 mounted on both left and right sides of the minute minute plate 24 and a guide plate 28 provided on both left and right sides of the minute plate 24, A slat height detecting device 14 is mounted on the rear portion of the minute slat plate 24.

The mounting plate 22 is provided with a pair of upper and lower mounting holes 22a which are oblong and downwardly inclined downward in the forward direction and the minute plate 24 is fixed by bolts through the mounting holes 22a . As a result, the mounting position of the fountain divider 7 can be adjusted in the forward, backward, or up and down directions within the range of the mounting hole 22a in accordance with the kind of the crop to be cut and the hardness of the package.

The guide member 26 has a concave portion 26a on the front end side where the upper end of the minute plate 24 is fitted and is extended and extended from the concave portion 26a toward the rear upper side And is formed so as to be wider toward the left and right outside from the concave portion 26a toward the rear. Thereby, the guide body 26 can cover the upper surface side from the left and right side surfaces of the minute particle board 24.

The guide rod 27 is a rod-shaped member which is fixed to the left and right side surfaces of the minute plate 24 and has a front end side inclined toward the left and right outside of the minute plate 24 toward the rear, Are provided on both left and right sides of the base plate 24, respectively. The guide rod 27 is formed so as to bend from the lower side of the concave portion 26a of the guide member 26 to the left and right outside at the side and is inclined toward the rear upper side like the guide member 26 .

The guide plate 28 is a member formed on the right and left side surfaces of the minute plate 24 and formed in a right triangle shape that slopes leftward and rightward outward toward the rear side and is a lower side of the guide rod 27 in side view, Is disposed on the front side of the height detecting device (14), and is disposed so as to be substantially horizontal with respect to the packaging surface side.

According to such a constitution, the fountain divider 7 divides the curved portion of the package into the left and right sides of the minute plate 24 and divides the curved portion divided by the minute plate 24 into the stern portions 24, Is gradually curved toward the left and right outer sides of the minute plate 24 by the guide body 26 and the guide rod 27 and the interval between the curved portions is made toward the uplifting device 8 disposed between the adjacent split dividers 7 Can guide.

As shown in the drawing, the curb height detecting device 14 is formed between a pair of left and right guide rods 27, 27 on the lower side of the guide body 26 and at the front side (front view) As shown in FIG. That is, the guide rod 27 and the guide member 26 are guided so as to push the curved portion scraped by the advancing travel in the package from the front side of the curb height detecting device 14 to the left and right outside, It is possible to prevent a breakdown or the like caused by the curved contact with the slit height detecting device 14 side.

The branching divider 7 is formed by the guide plate 28 so as to prevent the mud of the package on the front side of the slit height detecting device 14 from being guided by the guide rod 27 Weeds and the like can be knocked off, so that it is possible to effectively prevent mud from adhering to the slat height detecting device 14 or entangling the weeds. The guide plate 28 can also function as a sinking regulating plate for preventing the fountain divider 7 from entering the package side in the case where the package is smashed.

[Cutting height detecting device]

The slit height detecting device 14 includes a plate member 23 mounted on the minute minute plate 24 so as to follow the running direction and the height direction of the base member and a contact member 30 And a potentiometer 31 for detecting a vertically pivotal position of the piercing body 30. The vertically pivotal position of the piercing body 30 which is vertically pivoted and grounded on the package side is detected by the potentiometer 31, And is configured to detect the ground height of the mounting portion 4. [

The contact member 30 includes a detecting member 34 which is rotatably supported on the left and right sides of the plate member 23 via a first pivot 33, A boss member 35 extending and attached to the lower end side of the member 34 in the front and rear direction and a second pivot 36 inserted into the boss member 35, A retracting member 37 configured to rotate axially about the coaxial shaft 36 and a grounding member 39 disposed on the rear end side of the retracting member 37 and provided so as to be rotatable forward and rearward about the third rotating shaft 38, And the grounding member 30 has a detecting posture for detecting the ground height by grounding the lower side of the grounding member 39 on the packaging surface side when the running vehicle 3 is running forward, To the retracted posture in which the grounding member 39 is retracted upward when the vehicle is moving backward or turning left and right.

The grounding member 39 is a plate-like member extending downward from the rear end side of the retracting member 37 and has a grounding portion 39a whose lower end is in contact with the package side, A torsion spring 39b which is inserted into the third rotating shaft 38 and presses the grounding portion 39a toward the rearward rotating side, And the base end portion 39b comes into contact with the restricting portion 37a formed on the rear end side of the retracting member 37 so that the grounding portion 39a pressed toward the rearward rotating side And is stored and held at a detection position inclined rearward toward the lower side.

The grounding member 39 is held at the detection position by the urging force of the torsion spring 41 while the grounding member 39 is rotated in the direction And is retracted forward (upward) against the urging force of the torsion spring 41. Specific operations will be described later.

The retracting member 37 is a plate-like member extending in the front-rear direction, and has a connecting portion 37b to which the second rotating shaft 36 is connected by bending the front and rear ends so that the whole is reverse- And a regulating portion 37a on the rear end side of the retracting member 37 are formed.

The connecting portion 37b is provided with a projecting pin 42 to which the second rotating shaft 36 is connected and which extends forward. The connecting portion 37b is formed in such a manner that the second rotating shaft 36 is inserted into the boss member 35 at the lower end side of the detecting member 34 and at the same time, 35 (detecting member 34). A tubular portion of the torsion spring 43 is housed on the boss member 35 side and a pair of arm portions protruding from the torsion spring 43 are disposed so as to sandwich the projecting fitting pin 42 .

Thereby, the retracting member 37 is held and held at a position where its shaft rotational position becomes a detection position where the grounding member 39 is extended straight from the front face toward the package by the urging force of the torsion spring 43 . Thus, when a force in the left-right rotating direction acts on the grounding member 39, the retracting member 37 is rotated about the axis of the second pivoting shaft 36 against the urging force of the torsion spring 43 So that the grounding member 39 is retracted to the left and right (upper) side. Specific operations will be described later.

The detecting member 34 is fixed to the first rotating shaft 33 and the first rotating shaft 33 is rotatably inserted into the boss portion 23a formed on the plate member 23 side, And is supported on the plate member 23 side so as to vertically rotate about the coaxial shaft 33. [

The detecting member 34 is provided with a lower limit regulating fins 46 on the lower side of the first rotating shaft 33. When the lower limit regulating fins 46 come into contact with the lower face side of the plate member 23 (Forward) rotation of the member 34 is regulated at the lower limit position. On the other hand, an upper limit regulating pin 47 protruding from the plate member 23 toward the detecting member 34 is provided above the first coaxial shaft 33, and the upper limit regulating pin 47 is engaged with the detecting member 34, the upper (rear) rotation of the detecting member 34 is regulated at the upper limit position. In the present embodiment, the lower limit regulating fins 46 are provided on the detecting member 34, but the lower limit regulating fins 46 are provided on the plate member 23, (Forward) rotation of the detecting member 34 may be regulated at the lower limit position by being in contact with the upper surface side of the member 34. [

One of the pair of arm portions protruding from the torsion spring 48 is engaged with the lower limit of the detection member 34 side And the other of the arms is engaged with the upper limit regulating pin 47 side of the support bracket 34 side.

The detection member 34 is set to the initial state in which the lower limit regulating fins 46 are pressed at the lower limit position in contact with the plate member 23 side and the upper rotation quantity from the initial state is supplied to the potentiometer 31 So as to detect the ground height of the preloading section 4. [0035] Specific operations will be described later.

The grounding member 30 constructed as described above is moved in the forward direction to push the grounding member 39 in contact with the ground so that when a force is applied to the grounding member 39 from the front, (The detecting member 34) of the torsion spring 48 (the detecting member 34) is in a state in which the rearward rotation of the grounding member 39 (the relative rotation with respect to the retreating member 37) And rotates upward about the first rotating shaft 33 against the pressing force (see Fig. 7, etc.).

When the traveling member 3 is moved backward and the ground member 39 is pressed in contact with the ground or stump or the like to apply a force to the ground member 39 from the rear, the ground member 39 (See FIG. 8) against the pressing force of the torsion spring 41, and is retracted forward (relative to the retreating member 37) about the third rotating shaft 38 in the forward direction. As a result, the grounding member 39 and the like can be prevented from being damaged. Since the torsion spring 48 on the side of the first pivot shaft 33 has a larger pressing force than the torsion spring 41 on the side of the third coaxial shaft 38, Before being rotated, the grounding member 39 is constructed so as to be retracted first.

The grounding member 30 is connected to the grounding member 39 when the traveling member 3 is swung so that the grounding member 39 is pressed against the ground or the stump or the like to apply force to the grounding member 39 from the lateral direction, 39) rotate about the second rotation shaft 36 in the left-right direction (counterclockwise to the left and right with respect to the detection member 34) (see Figs. 9 and 10). As a result, the grounding member 39 and the like can be prevented from being damaged.

The first coaxial shaft 33 is a rotary shaft related to the detection of the ground height of the preload portion 4 as the rotary shaft of the detecting member 34 and the second rotary shaft 36 and the third rotary shaft 36 (38) becomes a turning shaft related to the retraction operation of the grounding member (39).

When the grounding member 30 is switched from the detection position to the retracted position, only the grounding member 39, which is a part of the grounding member 30, is retracted back and forth and left and right. The space reserved on the lower side of the minute dividing divider 7 can be made smaller.

The potentiometer 31 is mounted and fixed to one of the right and left sides of the plate member 23 so as to detect the up and down rotation of the detecting member 34 via the connecting portion 50 . That is, the potentiometer 31 does not move the potentiometer 31 because the mounting position does not move even if the contact members 30 (the detection member 34, the retracting member 37, and the ground member 39) It becomes easier for the wiring to be connected to the wiring pattern to be routed.

Next, the protective structure and arrangement of the coupling portion 50 in the curled-up height detecting device 14 and the mounting structure of the curled-up height detecting device 14 will be described with reference to Figs. 11 to 15. Fig.

[Protective Structure of the Linkage Section]

As described above, the blade height detecting device 14 of the present embodiment includes a plate member 23 mounted on the lower portion of the preloading section 4 along the gas traveling direction and the height direction, And a connecting portion 50 is disposed in a fixed state on the other surface side (the right side in the example shown) of the plate member 23, A potentiometer 31 for detecting the rotation angle of the contact member 30 through the contact member 30 and a contact member 30 which penetrates the plate member 23 from one surface side to the other surface side and is connected to one end side And a first pivot 33 for vertically and rotatably supporting the first pivot shaft 30.

12 to 14, the coupling unit 50 includes a potentiometer-side detection arm 51 (potentiometer-side coupling member) connected to the detection shaft 31a of the potentiometer 31, a first rotary shaft 33 And the rotation of the first pivot 33 is connected to the detection shaft 31a of the potentiometer 31. The detection shaft 31a is connected to the other end side And a ground side detection arm 52 (ground side coupling member) for inputting.

A cover member 60 for covering at least the ground side detection arm 52 and the potentiometer side detection arm 51 with the plate member 23 is mounted on the other surface side (right side in the illustrated example) of the plate member 23 . The grounding-side detecting arm 52 and the potentiometer-side detecting arm 51 are arranged so that the grounding-side detecting arm 52 and the grounding-side detecting arm 52 are disposed on the other surface side of the plate member 23, Side detecting arm 52 is disposed on one surface side of the same plate member 23 as the grounding member 30 because the cover member 23 is covered between the cover member 23 and the cover member 60, Side detecting arm 52 and the potentiometer-side detecting arm 51 while reliably covering the connecting portion between the ground-side detecting arm 52 and the potentiometer-side detecting arm 51, It is possible to prevent the attachment of the span. Further, since the potentiometer 31 is disposed in a fixed state on the other surface side of the plate member 23, displacement space of the wiring connected to the potentiometer 31 becomes unnecessary.

The ground side detection arm 52 and the potentiometer side detection arm 51 are disposed between the plate member 23 and the potentiometer 31. With this arrangement, not only the structure of the cover body 60 can be further simplified, but also the cut-off height detecting device 14 can be made compact.

The plate member 23 is formed with a concave portion 23b into which at least part of the ground-side detection arm 52 and the potentiometer-side detection arm 51 are inserted. The concave portion 23b of the present embodiment has a hole 23c formed in the plate member 23 and a cover member 23 which is welded to one surface side of the plate member 23 to cover the one surface side of the hole 23c. (23d). According to the concave portion 23b, the protruding amount of the potentiometer 31 can be reduced, and it is possible to reduce the thickness of the valley height detecting device 14 even further.

Further, the potentiometer 31 is mounted on the other surface side of the plate member 23 through the spacer member 71. More specifically, the potentiometer 31 is mounted on the other surface side of the plate member 23 using the pair of screws 72, but the pair of screws 72 are formed on the spacer member 71 Penetrates the hole 71a and is screwed into the screw hole 23e formed over the plate member 23 and the cover member 23d.

The spacer member 71 is provided with a hole 71b into which at least a part of the ground-side detection arm 52 and the potentiometer-side detection arm 51 are inserted. According to the spacer member 71, since the spacer member 71 is also used as a member for protecting at least part of the ground-side detection arm 52 and the potentiometer-side detection arm 51, it is possible to further simplify the structure of the cover body 60 It becomes.

The cover member 60 according to the present embodiment includes a cover mounting member 61 mounted on the other surface of the plate member 23 and a cover member 62 mounted on the cover mounting member 61 through a pair of screws 62. [ (63).

The cover mounting member 61 is mounted so as to be sandwiched between the potentiometer 31 and the spacer member 71 when the potentiometer 31 is mounted on the plate member 23. Specifically, the pair of screws 72 to which the potentiometer 31 is attached passes through the hole 61a formed in the cover mounting member 61 and the hole 71a formed in the spacer member 71, And is screwed into the screw hole 23e formed over the plate member 23 and the cover member 23d.

The cover main body 63 is attached to the pair of mounting pieces 61b standing upright on the cover mounting member 61 through screws 62 respectively. The cover main body 63 of the present embodiment is configured not only to cover the ground side detection arm 52 and the potentiometer side detection arm 51 but also to cover the potentiometer 31 and the spacer member 71 together. According to the cover main body 63, it is also possible to prevent adhesion of mud or span to the potentiometer 31 and the spacer member 71. [ The cover main body 63 of this embodiment is configured to cover the potentiometer 31 together with the ground side detection arm 52, the potentiometer side detection arm 51 and the spacer member 71, It may be a cover body 63B (cover body 60B) configured to cover the ground side detection arm 52, the potentiometer side detection arm 51, and the spacer member 71 without covering the potentiometer 31 .

[Arrangement of connection part]

As described above, the slitting height detecting device 14 includes a grounding body 30 which vertically rotates about the first pivot 33, a detection shaft 31a parallel to the first pivot 33, A potentiometer 31 for detecting the rotation angle of the potentiometer-side detection arm 51 which is rotated with the detection axis 31a as a fulcrum, and a potentiometer 31 which is provided on the first pivot 33, Side detecting arm 32 for inputting the rotation of the first rotating shaft 33 to the potentiometer 31 by engaging the first rotating shaft 33 with the first rotating shaft 33. [

14, the ground-side detecting arm 52 and the potentiometer-side detecting arm 51 which constitute the connecting portion 50 have the engaging portions 52a, 51a at the distal end portion and the engaging portions 52a, 51a ) Are engaged with each other. Side detecting arm 52 is longer than the potentiometer-side detecting arm 51 in engaging the ground-side detecting arm 52 and the potentiometer-side detecting arm 51 in the blade height detecting device 14 of the present embodiment And the engagement position of the ground side detection arm 52 and the potentiometer side detection arm 51 is configured to be further away from the detection axis 31a as viewed from the first pivot 33. [

More specifically, the first coaxial shaft 33 is disposed on the front side of the detection shaft 31a, and the ground-side detection arm 52 connected to the first rotation shaft 33 is connected to the detection shaft 31a, Side detecting arm 51 connected to the detecting shaft 31a is extended rearward so that the engaging portion 51a of the distal end portion protrudes rearward beyond the position of the engaging portion 51b of the ground- (Not shown).

According to such an arrangement of the coupling unit 50, the first pivot 33 of the grounding member 30 and the detection shaft 31a of the potentiometer 31 are arranged close to each other, It is possible to make the cut-and-lap-height detecting device 14 compact while securing the angle detection accuracy of the contactor 30.

The first coaxial shaft 33 and the detection shaft 31a are arranged on the upper side of the space S formed in the rear portion of the minute plate 24 in parallel with the gas front and rear direction, At the lower side of the coaxial shaft 33 and the detection shaft 31a, the rotating space of the grounding body 30 is secured. According to such an arrangement of the linkage unit 50, it is possible to secure the rotating space of the contactor body 30 while compacting the blade height detecting device 14. [ In the present embodiment, since the detecting shaft 31a is disposed behind the first pivot 33 in the gas longitudinal direction, when the wiring of the potentiometer 31 is routed rearward, the wiring is shortened .

[Mounting Structure of Cutting Height Detecting Device]

11, the cut-flat height detecting device 14 of the present embodiment includes at least a plate member 23 along the running direction and a height direction of the base, And a potentiometer 31 disposed on the other surface side of the plate member 23 and detecting a rotation angle of the contactor 30 so as to be a unit, Is detachably mounted on the first minute plate (24). More specifically, a pair of mounting holes 23f are formed on both front and rear ends of the plate member 23, while a mounting portion 24a formed of a hole or a groove is formed at a corresponding position of the minute plate 24, The one surface side of the plate member 23 is detachably mounted to the minute plate 24 through the mounting hole 23f and the bolt 73 passing through the mounting portion 24a.

According to the slit height detecting device 14, since the slit height detecting device 14 is unitized and detachably attached to the lower portion of the pre-loading portion 4, the slat height detecting device 14 can be easily assembled and maintained have. One side of the plate member 23 on which the grounding member 30 is disposed is detachably mounted to the minute plate 24 and the potentiometer 31 is disposed on the other side of the plate member 23 The degree of freedom in arrangement is increased and assembly adjustment is facilitated as compared with the case where the contact member 30 and the potentiometer 31 are disposed on one surface of the plate member 23.

The blade height detecting device 14 of the present embodiment is configured as a unit including the above-described cover member 60 mounted on the plate member 23. [ According to such a blade height detecting device 14, it is possible not only to improve the assembling property but also to prevent adhesion of mud or span to the ground-side detecting arm 52 and the potentiometer-side detecting arm 51.

[Effect of Embodiment]

According to the present embodiment configured as described above, the preload section 4 is provided on the front portion of the traveling base 3 so as to be freely lifted and lowered. The preload section 4 is provided below the preload section 4, (4) having a slope height detecting device (14) for detecting a slope height of the slider (1), the slope height detecting device (14) A contact member 30 which is vertically rotatably disposed on one surface side of the plate member 23 and a contact member 30 which is arranged in a fixed state on the other surface side of the plate member 23, A first rotating shaft 33 which penetrates the plate member 23 from one surface side to the other surface side and supports the contact member 30 connected to one end side in a vertically rotatable manner, And is connected to the other end side of the first coaxial shaft 33, Side detecting arm 52 connected to the arm 51 and for inputting the rotation of the first rotating shaft 33 to the potentiometer 31 and a ground-side detecting arm 52 disposed on the other surface of the plate member 23, And a cover body 60 for covering the arm 52 and the potentiometer-side detection arm 51 between the plate member 23 and the cover member. In other words, the grounding member 30 and the grounding-side detecting arm 52 are arranged to be distributed to the other surface side of the plate member 23 and the grounding-side detecting arm 52 and the potentiometer-side detecting arm 51, Side detection arm 52 is disposed on one surface side of the same plate member 23 as the grounding member 30 because the cover member 23 covers the cover member 23 and the cover member 60, Side detecting arm 52 and the potentiometer-side detecting arm 51 while reliably covering the connecting portion between the ground-side detecting arm 52 and the potentiometer-side detecting arm 51, And the attachment of the span can be prevented. Further, since the potentiometer 31 is disposed in a fixed state on the other surface side of the plate member 23, displacement space of the wiring connected to the potentiometer 31 becomes unnecessary.

The distal end portion (the grounding member 39) of the grounding member 30 is configured so as to be retractably rotatable with respect to the proximal end portion (the detecting member 34) of the grounding member 30 in the left-right direction and the gas- It is possible to prevent breakage of the grounding member 30 even if the gas is moved backward or pivoted while the grounding member 30 is grounded to the package.

The ground side detection arm 52 is longer than the potentiometer side detection arm 51 and the engagement position of the ground side detection arm 52 and the potentiometer side detection arm 51 is set to be longer than the first rotation axis 33 The detection axis 31a of the potentiometer 31 is positioned close to the first pivot 33 of the contactor 30 and the distance of the length of the ground side detection arm 52 As a result, it is possible to make the cut-grass height detecting device 14 compact while securing the angle detection accuracy of the grounding member 30. [

The slit height detecting device 14 includes a plate member 23 along the running direction and the height direction of the base member, a contact member 30 vertically rotatably disposed on one surface of the plate member 23, And a potentiometer 31 disposed on the other surface of the plate member 23 for detecting the tilt angle of the tappet body 30 so that one surface of the plate member 23 faces the lower surface of the tentative member 4 Not only it is possible to improve the assembling property and the maintenance property of the slat height detecting device 14 but also the arrangement of the contact member 30 and the potentiometer 31 on one surface of the plate member 23 The degree of freedom of arrangement is increased and assembly adjustment is facilitated.

C: Combine
3: Running gas
4: Example mounting
14: Cutting height detecting device
23: plate member
30:
31: Potentiometer
31a:
33: First coaxial (pivot)
51: Potentiometer-side detection arm (potentiometer side coupling member)
52: Ground-side detection arm (ground-side coupling member)
60: Cover body

Claims (4)

A preliminary mounting portion that is vertically connected to the front portion of the traveling vehicle,
A comb tooth height detecting device which is provided at a lower portion of the preloading portion and detects a height of the pre-loading portion with respect to the ground,
The grass height detecting device comprises:
A plate member mounted on a lower portion of the preloading portion so as to follow the gas running direction and the height direction,
A contact member vertically rotatably disposed on one surface of the plate member,
A potentiometer which is arranged in a fixed state on the other surface side of the plate member and detects a rotation angle of the potentiometer-
A pivot shaft passing through the plate member from the one surface side to the other surface side and supporting the contact member connected to one end side in a vertically rotatable manner,
A ground side coupling member connected to the other end side of the pivot shaft and connected to the potentiometer side coupling member and for inputting the rotation of the pivot shaft to the potentiometer,
And a cover member disposed on the other surface side of the plate member and covering at least the ground side coupling member and the potentiometer side coupling member with the plate member. The method according to claim 1,
Wherein a front end portion of the grounding member is configured to be retractably rotatable in a gas lateral direction and a gas longitudinal direction with respect to a base end portion of the grounding member. 3. The method according to claim 1 or 2,
Wherein the potentiometer has a detection axis that is parallel to the rotation axis, detects a rotation angle of the potentiometer-side coupling member that rotates with the detection axis as a fulcrum,
The ground side coupling member is engaged with the potentiometer side coupling member to input the rotation of the rotation shaft to the potentiometer,
The ground side coupling member is longer than the potentiometer side coupling member,
And the engagement position of the ground side coupling member with the potentier-side coupling member is further away from the detection shaft as viewed from the rotation shaft. 4. The method according to any one of claims 1 to 3,
Wherein the cut-out height detecting device is formed as a unit by including the plate member, the contact member, and the potentiometer, and one surface side of the plate member is detachably mounted to a lower portion of the pre- .

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