JP3348411B2 - Self-propelled manual spreader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual spreader for dispersing compost in a field, which is capable of dispersing and loading compost.

[0002]

2. Description of the Related Art A self-propelled manual spreader in which a prime mover mounted with a prime mover is provided on the rear side of a chassis and a packing box having a beater mounted on a front end thereof is provided on a front side, and a conveyor belt provided on the bottom of the packing box. so as to perform a forward and reverse switching of the rotational direction of the feeding direction of the switching and beater before and after, technology that allows the spraying and loading of compost, Utility Model 60-383 3
No. 0 publication.

[0003]

A bottom plate is provided below the conveyor belt to receive the weight of the compost, and a rear frame is erected on the rear side of the packing box. For this reason, when the conveyor belt is sent to the loading side and the loading operation is performed, if foreign matter such as stone is mixed in the compost, the foreign matter is caught between the lower end of the rear frame and the upper surface of the conveyor belt. Sometimes. In this case, there is a bottom plate below the conveyor belt, so that the conveyor belt is damaged or, in the worst case, damaged, making the conveyor belt unusable. An object of the present invention is to solve the above disadvantages.

[0004]

An endless conveyor belt 7 is provided rotatably with a bottom plate 37 provided on the bottom of the packing box 4 from above and below, and an inclined plate 47 is provided below the rear frame 39 of the packing box 4.
In the self-propelled manual spreader provided with the rolls 36, the roll 36 and the rear end 1 of the bottom plate 37 are wound around the conveyor belt 7.
2, the lower end 11 of the inclined plate 47 is positioned so that the conveyer belt 7 bends downward when foreign matter is caught in the lower end 11 of the inclined plate 47.

[0005]

In the above configuration, when the conveyor belt 7 is moved to the loading side in order to load the compost into the packing box 4, if there is a foreign matter such as a stone in the compost,
Usually, it is guided upward by the inclined plate 47 below the rear frame 39, but happens to be in contact with the lower end of the inclined plate 47 and the conveyor belt 7.
The rear end 12 of the bottom plate 37
Is located on the front side of the lower end 11 of the inclined plate 47, so that the conveyor belt 7 bends downward to allow foreign substances to pass rearward, and the rear frame 39
Will be discharged backward. Therefore, the conveyor belt 7 is not damaged or broken.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. The undercarriage 15 includes a traveling device including crawlers 16 on the left and right sides, and a prime mover 18 is mounted on a rear drive mounting portion 17. A transmission case 19 is attached to the lower side of the drive mounting portion 17 so as to transmit power to the crawler 16. The driving frame 1 is provided above the drive mounting portion 17 so as to cover the driving motor 18. On the rear upper portion of the driving frame 1, a traveling clutch lever 23 for intermittently connecting left and right steering levers 20, 20 and a clutch 22 of the traveling hydraulic transmission 21 and before and after operating a transmission shaft of the traveling hydraulic transmission 21. The steering operation tool 2 such as a forward gearshift lever 24 is erected, and a handlebar 25 protrudes toward the rear side.

The packing box 4 is mounted on the front side of the undercarriage 15, and the mounting is performed as follows. The rear bottom portion of the packing box 4 is pivotally supported by the left and right pivot shafts 26 to the chassis 15, and the center slightly front bottom left and right portions are connected by support links 28, 29 which can be bent by an intermediate pivot shaft 27. An auxiliary link 30 is provided from the intermediate pivot shaft 27 to the bottom surface of the packing box 4, and a roller 31 pivotally supported at the tip of the auxiliary link 30 is fitted to a guide rail 32. The guide rail 32 is provided with a stop portion 33 for the roller 31, and the extension of the support links 28 and 29 is limited so that the packing box 4 becomes horizontal when the roller 31 hits the stop portion 33.

[0008] A double-acting hydraulic cylinder 34 is interposed between the substantially central bottom portion of the packing box 4 and the front left / right intermediate portion of the chassis 15. Therefore, the packing box 4 is supported on the chassis 15 by the rear pivot 26, the front supporting links 28 and 29, and the hydraulic cylinder 34. The packing box 4 has rollers 3 before and after the bottom.
5 and 36 are laid horizontally, the conveyor belt 7 is wound around the bottom plate 37 in the middle, and the bottom plate 37 receives the load. As shown in FIG. 8, the rear frame 39 of the conveyor belt 7 has the rear roller 36 at a position rearward of the rear frame 39, the rear end 12 of the bottom plate 37 at the front side of the rear frame 39, and the lower end of the rear frame 39. When a foreign substance such as a stone enters between the conveyor belt 7 and the inclined plate 47, the conveyor belt 7 bends downward and discharges the foreign substance to the rear of the packing box 4. Become like Side frames 37, 38 are erected on the left and right sides of the packing box 4, and the rear frame 3 is provided on the rear side.
9 and the beater 3 is attached to the front side.

The beater 3 has rotating blades 43 disposed at equal intervals on a rotating shaft 42 pivotally supported between left and right frames 40, 41. In the beater 3, a mounting portion 44 formed at the rear lower portion of the left and right frames 40, 41 is mounted on a step portion 45 provided at the rear end of the left and right frames 37, 38 of the packing box 4, and the upper portion is provided with pins 46. And beater 3
And the side frames 37 and 38 of the packing box 4 are connected and attached. An inclined plate 47 is provided below the inside of the rear frame 39 of the packing box 4, and an elastic plate 48 is attached to the tip of the inclined plate 47.
Pressed upward and attached.

The crawler 16, the conveyor belt 7, and the beater 3 are driven by a single prime mover 18, and the power transmission system is as shown in FIG. A driving pulley 50 attached to the output shaft 49 of the motor 18 has three belt grooves, and a belt 51 wound around the first belt groove is wound around a pulley 54 attached to an input shaft 53 of a hydraulic pump 52. A belt 55 wound around the second belt groove is wound around a pulley 57 attached to a driven shaft 56 on the packing box 4 side, and a belt 58 wound around the third belt groove is a hydraulic pressure attached to the side surface of the transmission case 19. It is wound around a pulley 60 attached to an input shaft 59 of the transmission 21. 2
Reference numeral 2 denotes a clutch pulley for transmitting power by stretching and loosening the belt 58.

One end of a driven shaft 56 extending outside the rear frame 39 of the load frame 4 is connected to an input shaft of a hydraulic transmission 61 for conveyance.
A beater driving gear 62 is attached to the other end. The power that has entered the transfer hydraulic transmission 61 is supplied by a chain 68 around a sprocket 65 attached to an output shaft 64 of a gear case 63 and a sprocket 67 attached to a shaft 66 of a roller 36 around which the conveyor belt 7 is wound. In the feed direction F or the take-in direction C.

The gear 62 meshes with a gear 70 mounted on a first relay shaft 69, and a belt 74 is wound around a pulley 71 mounted on the first relay shaft 69 and a pulley 73 mounted on a second relay shaft 72. The power is intermittently switched by the tension clutch 75. Further, a pulley 130 is attached to the extended end of the driven shaft 56, a belt 132 is wound around another pulley 131 attached to the second relay shaft 72, and the power is interrupted by the tension clutch 133 so that the beater 3 The direction of rotation can be switched between forward and reverse. A sprocket 76 is attached to the second relay shaft 72 and a sprocket 7 attached to the rotating shaft 42 of the beater 3.
A chain 78 is wound between the gears 7 to perform power transmission.

Since the distance between the driving pulley 50 and the driven pulley 57 is increased by tilting the packing box 4, the transmission mechanism is configured as shown in FIGS. The hydraulic pump 52 is mounted on a bracket 79 erected on the drive mounting portion 17 of the chassis 15.
, A fixed tension pulley 80 is pivotally supported, and a shaft support cylinder 81 is protruded. A shaft 84 that supports an arm 83 of a tension pulley 85 is fitted into the shaft support cylinder 81. The boss 8 of the spring support arm 85 is mounted on the shaft 84.
6 is rotatably fitted to the outside, a spring hook arm 87 is fixedly attached to the shaft end, and the shaft 8 is fixed together with the arm 83 of the tension pulley 82.
It turns around 4.

The spring support arm 85 and an arm 88 projecting from the rear frame 39 of the packing box 4 are connected by a rod 89. The spring support arm 85 and the spring hook arm 87 are connected to a tension spring 90.
, So that the tension pulley 82 stretches the belt 91. In such a configuration, as shown in FIG. 3, the packing box 4 is inclined (imaginary line position) from the normal position (solid line position).
, The tension pulley 82 moves so as to apply substantially the same tension to the belt 91.

The operation of the forward / reverse switching mechanism 8 of the conveyor belt 7 and the operation of stopping the drive of the beater 3 are shown in FIGS.
The operation can be performed by one work lever 92. A support shaft 94 is horizontally mounted on the operation box 93, and an interlocking cylinder 97 of a shift operation tool 96 that performs a shift operation by engaging a shift lever 95 of the transport hydraulic transmission 61 that shifts the conveyor belt 7 on the support shaft 94. Is fitted outside. Wires 98, 9 connected to the beater clutches 75, 133 are on the left side of the speed change operation tool 96.
9 is connected to a clutch transmission plate 100 so as to be rotatable about a vertical axis 101, and an operation lever 92 is fixed to the clutch connection plate 100. The operation lever 92 is connected to the operation box 9
A shift guide groove 102 is provided in a portion protruding from the shift guide groove 3, and a scattered switching groove 11 for rotating the beater 3 forward or backward while driving the conveyor belt 7 in the feed direction above and below the shift guide groove 102. And a switching groove 12 in a loading state for rotating the beater 3 forward or backward while driving the conveyor belt 7 in the loading direction.

The vertical switching groove 13 is provided on the conveyor belt 7.
Is switched to the feeding or loading direction, and the conveyor belt 7 is at the transport position 10 where the conveyor belt 7 is slightly driven toward the loading side at this vertical center position. The interlocking plates 1 are provided at both ends of the interlocking cylinder 97 which is fitted on the support shaft 94 adjacent to the clutch connecting plate 100.
04 and the speed change operation tool 96 are fixed. The interlocking plate 104 includes the clutch connecting plate 100, the link 106 and the spring 10
The connection of the clutch connecting plate 100 is transmitted to the interlocking cylinder 97 via the pins 108, 109, 110, 111 at 7. One of the links 106 forms an elongated hole 125 so that the adjusting screw 112 regulates the range of movement of the pin 108. This is because the speed of the conveyor belt 7 in the loading direction is reduced but the speed in the feeding direction is not too high.

The speed change operation tool 96 includes a pin 114 connected to a speed change shaft 113 of the hydraulic transmission 61 for driving the conveyor belt 7.
Are engaged by an engagement groove 115. The engagement groove 117 of the pin rotation position adjusting tool 116 is engaged with the pin 114. A pin 118 erected on the turning position adjuster 116 protrudes from an elongated hole 120 provided in a cover 119 of the operation box 93 to prevent rotation. When the adjustment dial 121 is rotated, the adjustment tool 116 is moved in the longitudinal direction to change the position of the pin 114 so that the maximum speed at which the conveyor belt 7 can be sent out can be changed.

With the above configuration, when the work lever 92 is set to the spraying position, the beater 3 is driven and the spring 10
7, the interlocking cylinder 97 is rotated, and the hydraulic transmission 61 is driven so that the conveyor belt 7 rotates in the feeding direction F. When the work lever 92 is set to the loading position, the beater 3
And the link 106 rotates the interlocking cylinder 97, and the hydraulic transmission 61 drives the conveyor belt 7 to rotate in the take-in direction C. Link 106 is pin 1
08 and the elongated hole 125, the pin 114 is returned to the neutral position by turning the adjustment dial 121, and the interlocking cylinder 97 can be rotated against the tensile force of the spring 107.

When the compost is loaded into the packing box 4 by the self-propelled manual spreader configured as described above, the packing box 4 is inclined forward and the chassis 15 is moved forward as shown in FIG. If the compost is less than the height of the packing box, the beater 3 is rotated from the bottom of the beater 3 as the A direction, and if the compost is large, the rotation of the beater 3 is set as the B direction and the compost is beaten. Scrape from above. Conveyor belt 7 is in loading direction C
Drive to When the loading of the compost is completed, the vehicle body 15 is run while the conveyor belt 7 is slightly moved to the loading side with the work lever 92 in the transport position 10. When the compost is spread widely, the beater 3 is rotated in the direction B (see FIG. 1) while the chassis 15 is running, and when the compost is spread over a narrow range, the beater 3 is rotated in the direction A. The conveyor belt 7 is moved in the feeding direction F at a very low speed according to the amount of application.

[Brief description of the drawings]

FIG. 1 is a side view showing a part of an embodiment in section.

FIG. 2 is a power transmission system diagram of the embodiment.

FIG. 3 is a partially enlarged side sectional view of the embodiment.

FIG. 4 is a partially enlarged plan view of the embodiment.

FIG. 5 is a partially enlarged perspective view of the embodiment.

FIG. 6 is a partially enlarged plan view of the embodiment.

FIG. 7 is a partially enlarged side view of the embodiment.

FIG. 8 is a partially enlarged side sectional view of the embodiment.

[Explanation of symbols]

 Reference Signs List 4 packing box 7 conveyor belt 11 lower end of inclined plate 12 rear end of bottom plate 36 rear roll 37 bottom plate 39 rear frame 47 inclined plate

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 64-34914 (JP, U) Japanese Utility Model Sho 60-38330 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01C 3/00-3/08

Claims (1)

(57) [Claims] 1. A bottom plate (37) provided at the bottom of a packing box (4).
In a self-propelled manual spreader provided with an endless conveyor belt (7) rotatable in forward and reverse directions with an inclined plate (47) provided below a rear frame (39) of a packing box (4), After winding the belt (7), roll (3)
6) and the lower end (11) of the inclined plate (47) is located between the rear end (12) of the bottom plate (37) and the inclined plate (47).
A self-propelled manual spreader characterized in that the conveyor belt (7) bends downward when foreign matter is caught in the lower end (11) of the manual spreader.