JP4423593B2 - Shutter operating device for fertilizer spreader - Google Patents

Description

  The present invention relates to a shutter operating device for a fertilizer spreader that mainly spreads compost and manure to a field scene, and changes an accurate shutter opening with a simple mechanism.

A technique is known in which a shutter is opened and closed by a turning operation of an operation lever having a locking tool that can be engaged with a rack, and the opening degree is adjusted (for example, see Patent Document 1).
Japanese Utility Model Publication No. 45-29212 (first page, FIG. 1)

  In a fertilizer spreader that spreads fertilizers such as compost and manure, it is common to form a wide outlet, and the operation for adjusting and changing the opening of the shutter is performed accurately. hard.

According to the first aspect of the present invention, the interlock mechanism 5 by the operation lever 4 of the shutter 3 that opens and closes the delivery port 2 provided at the lower end portion of the feeder hopper 1 across the width of the vehicle body 10 is combined with the shutter 3 by the operation angle of the operation lever 4. The arm ratio changing mechanism 6 for changing the degree of opening and closing of the shutter is provided. The arm ratio changing mechanism 6 is configured to disperse the granular material in which the movement amount of the shutter 3 is small with respect to the movement amount of the operation lever 4 and the movement of the shutter 3 relative to the movement amount of the operation lever 4 The stopper 7 is configured to be switchable between a large pile and a manure application state, and is provided in the opening / closing operation area of the operation lever 4 to stop the operation lever 4 by pressing it. the operating lever 4 is moved and adjusted to the side later is separated from the stopper 7, characterized in that the application rate is provided a scale 8 which can be finely adjusted manure spreaders The structure of the shutter operating device. With the feed hopper 1 supplied with fine fertilizers such as chemical fertilizers, limes, piles, manure, etc., which are fine powder particles, the shutter 3 of the outlet 2 is opened and the fertilizer is sprayed while running the vehicle body. The shutter 3 of the payout opening 2 is opened and closed in large and small via the interlocking mechanism 5 and the arm ratio changing mechanism 6 by the operation of the operation lever 4 of the vehicle body control section. When the opening / closing degree of the shutter 6 is changed, the opening / closing operation can be performed with the operation angle of the operation lever 4 being constant by switching and changing the arm ratio changing mechanism 6 of the interlocking mechanism 5. The operation rotation range of the operating lever 4, have a stopper 7 is provided which can be stopped by pressing the operation lever 4, the operating lever 4 in the opening position of the object when the Ru pressed against the stopper 7 Open operation is possible. When adjusting the opening position of the shutter 3, the position of the stopper 7 is moved and adjusted along the operation direction of the operation lever 4. Since the scale 8 is provided in the stopper 7, it is possible to know the opening position of the shutter 3, the fine adjustment moving the operation lever 4 after pressed against the stopper 7, the later is separated from the stopper 7 side Let

  According to the first aspect of the present invention, when the opening / closing degree of the shutter 3 of the delivery port 2 is adjusted, the arm ratio changing mechanism 6 in the interlocking mechanism 5 is switched and changed. The opening / closing operation angle of the operation lever 4 is not changed, and the opening / closing operation can be made simple and easy. Further, since the arm ratio changing mechanism 6 changes the degree of opening and closing, the configuration can be simplified. In addition, the amount of forward and backward movement of the shutter 3 can be reduced when dust particles are sprayed to reduce the opening of the outlet 2, and the amount of forward and backward movement of the shutter 3 can be increased when dust and manure are sprayed. Thus, the opening degree of the delivery port 2 can be increased, and it is possible to spray chemical fertilizers and limes that are fine powder particles in addition to compost and manure.

Further, the opening degree of the shutter 3 is adjusted by a stopper 7 for restricting the operation range of the operation lever 4 and a scale 8 for displaying the movement adjustment position is formed on the stopper 7. without adjusting the operation amount, and once the rotation operation to be engaged with the stopper 7 can be operated in its adjustment position, further, the size is the degree of opening of Repetitive outlet 2 is locked regulatory position in the stopper 7 when too is because it is possible to move adjusting the operating lever 4 to the rear side by spaced apart from the stopper 7, adjusting, and precisely the operation can be easily performed.

  Based on the example, the fertilizer spreader has a supply hopper 1 mounted at the front end, an engine 11 mounted at the rear, and a steering handle 12 disposed on a vehicle body 10 having a pair of left and right crawlers 9 that can travel. And it is comprised in the hand running form. The engine 11 is driven to drive the crawler 9 to drive and rotate the spreader 13 under the supply hopper 1, the feeding blade shaft 14 in the hopper 1, the beater shaft 15, and the like to feed and spread fertilizer. it can. The supply hopper 1 is mounted on the front end portion of the vehicle body 10 so that the front wall 16 portion overhangs forward. The front wall 16 and the rear wall 17 are formed with a relatively steep slope so that the stored fertilizer can easily flow down. The upper rear wall 18 located at the upper part of the rear wall is configured to be gently inclined to increase the capacity, and on the inner side, a damper plate 20 that can be rotated back and forth around the damper shaft 19 is provided. The fertilizer received at 20 is caused to flow down to the front beater shaft 15 side by a dumping action. The upper portion of the front wall 16 is formed with an opening 21 and a gate 23 that can be opened to the front lower portion is provided around the gate shaft 22 at the lower end to facilitate the supply and input of fertilizer into the hopper 1. . The left and right side walls 24 facing the front wall 16 and the rear wall 17 of the hopper 1 are parallel to each other upright, and the upper side wall 25 of the upper part is inclined to the left and right sides to increase the capacity. Yes. A delivery port 2 is formed at the lower end of the hopper 1 over the width of the vehicle body 10.

  A shutter 3 that is opened and closed by sliding back and forth is provided below the feed outlet 2 of the supply hopper 1, and a diffusion chamber 26 in which a diffusion plate 13 is disposed is provided below the shutter 3. The diffusion plate 13 is rotated around a diffusion axis 27 in the vertical direction. The diffusion plate 13 is disposed on both right and left sides in the diffusion chamber 26 and has diffusion blades 28 on the upper surface. The fertilizer is received and sprinkled on the farm scene from the front diffusion port 29 while rotating. The shutter 3 is formed broadly in the same manner as the delivery port 2, the closing plate portion 30 is formed in the front half portion, the shutter opening portion 31 that can be overlapped with the delivery port 2 is formed in the rear half portion, and the left and right outer portions are formed. A shutter flange 32 is formed along. The upper part of the diffusion cover 33 constituting the diffusion chamber 26 is expanded outward to form a sliding groove 34, and the shutter flange 32 of the shutter 3 is fitted and guided in the sliding groove 34. A synthetic resin rail 35 is provided below the sliding groove 34, and the shutter flange 32 is slid on the rail 35. The lower edges 36 and 37 of the front and rear walls 16 and 17 of the supply hopper 1 are bent horizontally in the front-rear direction, and the upper surface closing plate portion 30 of the shutter 3 is slidably contacted with the lower surface thereof. Prevent fertilizer entrapment. The distance between the lower edges 36 and 37 of the supply hopper 1 and the shutter 3 can be set so as not to occur as much as possible by adjusting the mounting guide height of the rail 35. Further, a cover edge 38 standing upright from the diffusion cover 33 side is formed below the lower edge 37 on the rear side of the hopper, and an insulator 39 is attached to the upper end of the cover edge 38 from the lower surface side of the shutter 3. It is positioned inside and pressed against the lower edge 37 of the rear wall 17 of the hopper 1 to partition between the inside of the diffusion chamber 26 and the outside of the rear side to prevent the diffusion fertilizer from jumping out.

  In the vicinity of the steering handle 12 part behind the hopper 1, a travel clutch lever 40 of a travel clutch for turning on and off the vehicle body travel transmission, a work clutch lever 41 of a work clutch for transmitting fertilizer by spreading the spreader 13 and the like, A shift lever 42 that performs a traveling shift and an operation lever 4 that opens and closes the shutter 3 are disposed. The operation lever 4 for opening and closing the shutter 3 is provided on a support bracket 43 on the right side of the engine 11 so as to be able to rotate back and forth around the lever shaft 44. A brake disk 45 in the form of a friction disk is provided between the operation lever 4 and the support bracket 43 so that the front / rear operation position of the operation lever 4 can be appropriately locked and maintained. It can be forcibly rotated against the force and rotated back and forth. The arm ratio changing mechanism 6 has a turnbuckle 50 between the rod holes 47 and 48 formed in the lever arm 46 integrated with the operation lever 4 and the link arm 49 on the front vehicle body 10 to adjust the length. It is connected with a possible link rod 51. On the arm shaft 52 of the link arm 49, link arms 53 that are longer than the link arm 49 are provided at both left and right end portions, and the front end portion of each link arm 53 and the rear end left and right side ends of the shutter 3. The parts are connected by link rods 54 and 55. Of these, the left link rod 54 is provided with a turnbuckle 56, and the length of the link rod 54 can be adjusted. By this adjustment, the front / rear position of the shutter 3 is adjusted and the right / left inclination is corrected. The shutter 3 can be opened and closed smoothly.

  This fertilizer spreader is mainly used for spreading compost and manure, but in addition to these, it is also possible to spray chemical fertilizers and limes which are fine powder particles. In order to disperse this chemical fertilizer and the like, it is necessary to reduce the opening of the feed outlet 2. Here, when spreading compost or manure, the link rod 51 is engaged with the rod hole 47 of the lever arm 46 to increase the amount of forward and backward movement of the shutter 3, and the opening of the feeding port 2 by the shutter 3 is opened. When spraying chemical fertilizer, etc., the link rod 51 is engaged with the rod hole 48 of the lever arm 46, thereby reducing the amount of forward and backward movement of the shutter 3 and repeating. It is set as the structure which can make the opening degree of the exit 2 small. The operation lever 4 can be operated in a predetermined angular range in the front-rear direction, and the feeding port 2 can be opened by the forward rotation operation and closed by the rear operation. The opening / closing operation position of the shutter 3 can be adjusted by adjusting the turnbuckle 50 of the link rod 51.

In such a configuration in which the opening degree of the delivery port 2 is switched or changed by the operation of the shutter 3 by the operation lever 4 by the arm ratio changing mechanism 6 of the interlocking mechanism 5, the opening degree of these delivery ports 2 can be finely adjusted. Constitute. A stopper guide 58 attached to the support frame 57 on the vehicle body 10 is provided in an oblique direction toward the rear inner side at a front portion of the front / rear rotation operation area of the operation lever 4, and the stopper guide 58 is provided along the stopper guide 58. 7 can be attached with adjustable movement back and forth. The stopper guide 58 is provided with a longitudinal hole 59 in the front-rear direction and a scale 62 for displaying the movement adjustment position of the stopper 7. A knob bolt 60 is provided in the elongated hole 59 of the stopper 7, and the adjustment position of the stopper 7 can be fixed by tightening the knob bolt 60, and the indicator needle 61 formed on the base of the stopper 7 is a scale 62. Indicates the position. On the outer end portion of the stopper 7, a scale plate 63 having a scale 8 is formed outside the rotational operation area of the operation lever 4. When the stopper 7 is moved to the front end position, the opening operation area of the operation lever 4 is maximized, and the opening 2 opening is switched by selecting the rod holes 47 and 48 of the arm ratio changing mechanism 6. Opening operation is possible. When the opening degree is set to be smaller than this, the stopper 7 may be moved and adjusted to the rear side along the long hole 59 and fixed.
In this way, when the position of the stopper 7 is fixed to the stopper guide 58 and the operation lever 4 is operated to the front side to open the outlet 2, the operation lever 4 can be pressed against the stopper 7 and stopped. . As long as the stopper 7 is not moved, even if the shutter 3 is frequently opened and closed by operating the operation lever 4, it can always be locked at a constant stopper 7 position to obtain a constant opening. Further, the opening adjustment position can be accurately read by the scale 62 indicated by the indicator needle 61 of the stopper 7, and the opening adjustment setting can be made accurately and easily in the spraying operation in which the fertilizer is changed.

  When adjusting the movement of the stopper 7, the scale plate 63 at the outer end is also moved together. The scale 8 of the scale plate 63 displays the position of the operation lever 4 when it is locked by the stopper 7. The position of the operating lever 4 locked by the stopper 7 is also indicated by the scale 62. However, when the opening of the feeding port 2 is too large at the adjustment position locked by the stopper 7, the operating lever 4 Is moved away from the stopper 7 and adjusted to move rearward. The fine adjustment position at this time can be read with the scale 8 of the scale plate 63. Such a scale 8 display by the scale plate 63 is effective when the stopper 7 is adjusted and set at the rearmost end portion of the long hole 59 and cannot be moved and adjusted backward. Further, when the stopper 7 is positioned in the front area of the stopper guide 58, the scale plate 63 does not protrude rearward, so that it is difficult to disturb the operation of the operation lever 4 and the like.

  Next, the operation interlocking relationship between the travel clutch by the travel clutch lever 40 and the work clutch by the work clutch lever 41 will be described mainly based on FIGS. Assuming that both clutch levers 40 and 41 can be operated independently, when both clutches are engaged and turned on, the travel clutch lever 40 is turned off and the work clutch lever 41 is also turned off and the work clutch is turned off. It is linked to cut. The traveling clutch lever 40 is provided on the steering handle 12 so as to be able to swing back and forth around the lever shaft 64. The traveling clutch lever 40 is rotated from the OFF position of the front hanging state to the ON position of the rear side, A traveling clutch (not shown) can be operated, and traveling and stopping by driving the crawler 9 can be performed. The travel clutch lever 40 is provided with a spring arm 65 projecting at a fixed angle and a check rod 67 that can be pivoted up and down around the link pin 66, and a tension is provided between the spring arm 65 and the check rod 67. A spring 68 is connected, and the restraining rod 67 is lifted upward. In the front end portion of the check rod 67, a short hole portion 69 having a short upper step portion and a long hole portion 70 having a long lower step portion are formed in a substantially bowl shape. On the other hand, a work clutch lever 41 for interlocking operation of a work clutch (not shown) is provided on the bracket 71 fixed to the transmission case or the like so as to be able to turn up and down around the lever shaft 72, and an arm 73 at the tip thereof. A projecting arm pin 74 is fitted into the short hole portion 69 and the long hole portion 70. When the work clutch lever 41 is rotated upward around the lever shaft 72, the work clutch is disengaged and set to the OFF position, and when rotated to the lower side, the work clutch lever 41 is set to the ON position.

Here, when both the clutch levers 40 and 41 are both turned to the OFF position, the spring arm 65 is positioned on the upper side and the check rod 67 is pulled upward by the spring 68 as shown in FIG. For this reason, the arm pin 74 is positioned in the lower slot 70. In this state, when the work clutch lever 41 is turned on and operated to the ON position, the arm 73 is rotated rearward as shown in FIG. 5B, and the arm pin 74 is guided along the long hole portion 70 of the lower step portion. Therefore, the travel clutch lever 40 is not actuated and the travel clutch is disconnected and maintained at the OFF position, so that the feeding blade shaft 14, the beater shaft 15, the diffusion plate 13, etc., which are working portions, can be driven.
Further, when the traveling clutch lever 40 is turned on from the position where the both clutch levers 40 and 41 are turned off as shown in FIG. 5 (a) and the crawler 9 is driven to travel, FIG. ), The spring arm 65 is rotated downward around the lever shaft 64 by the operation of the travel clutch lever 40, and the spring 68 is formed along the direction of the check rod 67. The check rod 67 has a pulling force. Loses its own weight and falls. For this reason, the short hole portion 69 is guided from the state in which the long hole portion 70 is guided with respect to the arm pin 74, and the short hole portion 69 is movable back and forth with respect to the arm pin 74. The disengagement OFF position of the clutch lever 41 is maintained. Further, in such a traveling state with the travel clutch lever 40 in the ON position, the work clutch lever 41 is also in the ON position as shown in FIG. 6B, and the work clutch is engaged and fertilizer is sprayed. it can. At this time, the arm pin 74 by the operation of the work clutch lever 41 is moved back and forth in the short hole portion 69, and the check rod 67, the travel clutch lever 40, and the like are not moved.

  Further, when the travel clutch lever 40 is turned off and operated to the OFF position from FIG. 6B in the fertilizer application work state in this way, the arm pin 74 by the ON position of the work clutch lever 41 becomes the short hole portion 69 of the check rod 67. Therefore, when the check rod 67 is moved to the front side, it is pushed to the front side at the rear end edge of the short hole portion 69, so that the work clutch lever 41 is also turned off and switched to the OFF position. it can. In other words, when the work is stopped from the working state, the work clutch lever 41 can be turned off by operating the travel clutch lever 40 to be turned off, and the operation can be easily and quickly performed.

The whole side view of a manure spreader. The plan view. The enlarged side view of an arm ratio change mechanism part and a shutter opening / closing part. The cut-away front view of a hopper and a diffusion part. The side view which shows the interlocking relationship of a work clutch lever and a driving | running | working clutch lever. The side view which shows the interlocking relationship of a work clutch lever and a driving | running | working clutch lever.

DESCRIPTION OF SYMBOLS 1 Supply hopper 2 Outlet 3 Shutter 4 Operation lever 5 Interlocking mechanism 6 Arm ratio change mechanism 7 Stopper 8 Scale

Claims (1)

The interlocking mechanism (5) of the operation lever (4) of the shutter (3) that opens and closes the delivery port (2) provided across the width of the vehicle body (10 ) at the lower end of the supply hopper (1) is connected to the operation lever (4). An arm ratio changing mechanism (6) for changing the degree of opening and closing of the shutter (3) according to the operating angle is provided, and the arm ratio changing mechanism (6) is a powder having a small moving amount of the shutter (3) relative to the moving amount of the operating lever (4). a granulate distribution state, the operating lever (4) shutter for moving amount (3) the amount of movement is large compost, with switchably configuring into a manure distribution state, the opening and closing range of the operating lever (4), this operation A stopper (7) that can be stopped by pressing the lever (4) is provided. In this stopper (7), the operating lever (4) is moved away from the stopper (7), adjusted to move backward, fine Manure spreaders shutter operating device characterized in that a scale (8) which can be integer.

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