JPH0335884B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a spreading device for spreading spreadable bulk material such as manure or earth and sand.

[Prior art]

A conveying device for materials to be spread, such as a belt conveyor or chain conveyor, is installed on the bottom of the shipping box.
By driving this conveyance device, the materials to be spread in the cargo box can be transported little by little towards the rear of the cargo box, and a scattering device is installed at the exit of the material to be spread at the rear of the cargo box. Arranged spreading wheels are known and various proposals have been made for the spreading devices of such spreading wheels in order to obtain as wide a spreading wheel as possible and to obtain as uniform a spreading function as possible. being done.

For example, in Japanese Patent Application Laid-Open No. 58-216608, in order to obtain a spreader as wide as possible, a crushing beater is arranged at the upper rear end of the conveying device, and the crushing beaters are arranged at a lower position at the rear end of the conveying device, and A spraying device is disclosed in which a pair of impellers each having a disk and a blade attached to a pair of vertical shafts rotating in opposite directions is disposed. A spreading device is disclosed in which a pair of beaters, each having a horizontal axis, are arranged at the rear end of a packing box in which a pair of beaters are arranged so that the beaters have a V-shape in plan view with respect to the traveling direction of the vehicle body. ing.

[Problem that the invention seeks to solve]

However, in the spraying device shown in JP-A-58-216608, the impeller that provides the spraying function is rotated horizontally about a vertical axis. Although a wider spreading width can be easily obtained by increasing the rotation speed of the
Most of the spreading widths of the individual impellers overlap with each other, so the material spread by this spreading device is inevitably spread thickly in the center of the overall spreading width, and thinly on both sides. It will be distributed. That is, this scattering device had a problem in that even though it could spread the material to be spread widely, it could not spread it uniformly over the entire spreading width.

In this regard, the scattering device, which consists of a beater with a horizontal axis suspended horizontally at the rear of the cargo box, scatters the material to be spread using a rotary blade that rotates around the horizontal axis. This has the advantage that the material to be spread can be spread almost uniformly over the entire spreading range. However, with this type of spreading device, even if you give the rotary blade of the beater a twist or sweepback angle to give it a lateral spreading function, the resulting spreading width is at most twice the width of the beater. It is. Therefore, in this type of spraying device, even if a pair of beaters are arranged in a V-shape as shown in the above-mentioned Japanese Utility Model Publication No. 58-29205,
Furthermore, there was a problem that it was not possible to obtain a sufficiently wide spreading width.

Therefore, the present invention aims to provide a spraying device that can achieve both a wide spray width and a uniform spraying state over the entire spray width.

[Means for solving problems]

The structure of the present invention, which has been made to achieve the above object, will be explained using FIGS. 1 to 4 corresponding to the embodiments. Of the scattering vehicle 1 in which the conveying device for the materials to be spread is disposed,
This is a spreading device disposed at the material outlet 14 of the conveyance device, and is connected to a lateral feed/central part scattering device 15 for the material to be spread, and a dispersion device 15 on both sides of the lateral feed/central part scattering device 15. The horizontal feeding/center spreading device 15 is arranged above and behind the outlet 14 for the material to be spread, and spreads the material in the horizontal direction. Rotating axis 1
8 is composed of a beater 20 horizontally suspended between machine frames 17, 17 on the vehicle body, and a gutter 21 disposed below the beater 20 along the axial direction of the beater 20. rotating blade 19
The function is to scatter part of the spread material supplied onto the gutter 21 to the rear, and the remaining material to be spread is transferred to the gutter 2.
1 is provided with a cross-feeding function to feed the beater 20 from the center in the width direction to both sides;
The pair of side dispersion devices 16, 16 include impellers 29 that rotate around a pair of vertical shafts 28, which are disposed below the lateral feed and central dispersion device 15 on both sides thereof; The spraying device is characterized in that it also includes a plate 30 that closes the lower part of the impeller 29.

[Effect]

The scattering device according to the present invention includes a cross-feeding and central scattering device 15 for material to be spread, which is disposed at an outlet 14 for material to be spread, which is the rear end of the conveying device 3.
and a pair of side spreading devices 16, 16 disposed on both sides of this lateral feed/central spreading device 15, so that the spreading width can be spread over a certain width at the rear of the cargo box 2. 15 is a horizontal feed and central part spreading device.
The material to be spread can be spread by the spreading function, and the material to be spread can be spread over the spreading width on both sides by the side spreading devices 16, 16 on both sides.

Further, the above-mentioned cross-feeding/center-spreading device 15 is arranged above and behind the outlet 14 for the material to be spread, and has a horizontal rotating shaft 18 connected to the machine frames 17, 17 on the vehicle body.
Beater 20 suspended horizontally and this beater 20
The rotary blade 19 of the beater 20 receives a portion of the material to be spread, which is supplied onto the gutter 21. This lateral-feeding and center-spreading device has a function of scattering backwards and a lateral-feeding function of sending the remaining materials from the center of the width of the beater 20 to both sides of the beater 20 on the gutter 21. 15 is connected to the material exit 14 by the conveyance device 3.
A part of the material to be spread, which has been fed into this spreading device 15, is spread backward by its spreading function, and the remaining part is sent to the side spreading devices 16, 16 on both sides. The side distribution devices 16, 16 allow for distribution to both sides.

In addition, the rotary blade 19 of the beater 20 of the lateral feed/central part scattering device 15 is configured to direct the spread material supplied onto the gutter 21 from the center in the width direction of the beater 20 to both sides. Since it is provided with a feeding function to feed by the beater, the spreading width by this lateral feeding/central part spreading device 15 is larger than the width of the beater 20.

Further, the side scattering devices 16, 16 are used to spread the material to be spread toward both sides of the area where the material to be spread is spread by the beater 20.
These are disposed on both sides of the lateral feed and central dispersion device 15, and each includes an impeller 29 that rotates around a vertical shaft 28, and a plate 30 that blocks the lower part of the impeller 29. Since it is configured with
5, the material to be spread can be spread over a wide range on both sides of the area where the material to be spread has been spread.

Then, the thickness of the material to be spread by the horizontal feed/central part spreading device 15 and the pair of side spreading devices 1 are determined.
The thickness of the material to be spread by 6 and 16 is such that the horizontal feeding/central part spreading device 15 scatters a part of the material to be spread, which is supplied onto the gutter 21, to the rear, and the remaining part is spread to the sides on both sides thereof. Since it has a function of feeding in the direction of the spreading device, this horizontal feeding and central spreading device 15
If the spraying function and lateral feed function are provided in advance in proportion to the spraying capacity of the side spraying devices 16, 16,
By making both the spreading thickness uniform, it is possible to obtain a substantially uniform spreading thickness over the entire spreading width of the material to be spread by the spreading device of the present invention.

〔Example〕

To explain one embodiment with reference to FIGS. 1 to 3, 1
2 is a scattering vehicle, 2 is its cargo box, and 3 is a belt conveyor installed on the bottom of this cargo box. , a drive roll 5 suspended horizontally at the rear of the cargo box 2, and an endless sheet 6 suspended between both rolls 4 and 5. A drive shaft 7 (not shown) is connected to a drive shaft 7 via a pair of sprocket wheels 9, 10 around which a chain 8 is hung, a transmission shaft 11, and a reduction gear 12, and is loaded onto a cargo box 2. The material to be spread is conveyed at low speed to the rear of the packing box 2, and a well-known crushing beater is installed at the upper end of the rear end of the belt conveyor 3 to finely crush the manure, etc. 13 (shown only in Figure 2) is installed, and the material to be spread containing coarse lumps such as manure is crushed by this crushing beater 13, and then the material to be spread is crushed under the beater 13. Materials are fed from the material outlet 14 to the dispersion device of the present invention.

The scattering device according to the present invention includes an outlet 14 for the material to be spread at the rear end of the belt conveyor 3.
It is composed of a lateral feed/central part spreading device 15 disposed at the center, and a pair of side spreading devices 16, 16 disposed on both sides of this lateral feed spreading device 15. The cross-feeding/center-spreading device 15 of the embodiment has a rotating shaft 18 supported by bearing frames 17 disposed on both sides of the rear of the loading platform 2.
A beater 20 is provided with a large number of rotary blades 19, 19, . The rotary blade 19 of the beater 20 has a sweep angle and a twist that are symmetrical with respect to the widthwise center of the beater 20. The beater 20 is the gutter 2.
When the belt conveyor 3 rotates on the gutter 21, a part of the material to be spread is supplied from the rear end of the belt conveyor 3 onto the gutter 21 by the rotary blade 19 of the beater 20.
1, and the remaining part is the rotating blade 19.
Due to the receding angle and twist of the gutter 21, the gutter 21 is moved laterally on both sides of the gutter 21. In addition, at the rear end of the gutter 21 in this embodiment, a lateral feed amount and a spray amount are provided as means for relatively increasing and decreasing the lateral feed amount and the spray amount in the lateral feed and central part spreading device 15. Adjustment plates 22 are arranged in series. That is, the adjustment plate 22 has a rear end 22a that can freely adjust its height, and its front end is pivotally attached 23 to the rear end of the gutter 21. As the amount decreases, the amount of lateral feed increases by that amount, and when the height of the rear end portion 22a is lowered, the amount of spraying increases and the amount of lateral feed decreases by that amount.

Next, the pair of side spray devices 16 will be explained. The side spread devices 16, 16 of this embodiment are as follows:
The gutter 21 is disposed in recesses 25, 25 cut out on both sides of the rear half of the vehicle body in the front-rear direction, and a pair of upper and lower bearings 26, 2 are provided, respectively.
7 and a longitudinal shaft 28
It is composed of an impeller 29 fitted into the impeller 29 and a disk 30 fixed to the lower part of the impeller 29. Located at the bottom, gutter 2
When the material to be spread that has passed above the surface of the material falls into the recess 25, the impeller 29 rotating in the recess 25 scatters it to the side of the vehicle body. It's summery.

In addition, 31, 31 is a pair of impellers 29, 29
Spreading width adjusting plates arranged on the outside of the machine frame 17 and having their base ends 31a, 31a pivoted to appropriate positions on the machine frame 17, respectively;
Each spreading width adjusting plate 31 has a horizontal plate 31b extending from its lower edge, and a connecting rod 32 whose connecting length can be freely adjusted is connected between the appropriate position of the horizontal plate 31b and the appropriate position of the machine frame 17. (first,
(See Figure 2), this spreading width adjusting plate 31 changes the opening angle of the pair of spreading width adjusting plates 31, 31 by variably adjusting the length of this connecting rod 32, and the pair of impellers 29, 29 It is now possible to widen or narrow the maximum spreading width.

Next, the drive system of each spraying device 15, 16 will be explained. Reference numerals 33, 34, and 35 are all transmission shafts horizontally mounted at appropriate positions on the vehicle body or machine frame.
and each transmission shaft 33, 34, 35 and each transmission shaft 3
4 and 35 and the rotating shaft 18 of the beater 20 and the vertical axis 28 of the impeller 29 are the bevel gears 36 and 3, respectively.
7. Sprocket wheels 39, 40 around which the chain 38 runs, sprocket wheels 42, 43, 44, 45 around which the chain 41 runs, and are interlocked and connected via bevel gears 46, 47. In the scattering device, the beater 20 is rotated counterclockwise in Figure 2 (the direction in which the material to be spread is spread backward).
When the vehicle is rotated, the impeller 29 on the left side in the direction of travel of the vehicle body is rotated counterclockwise, and the impeller 29 on the right side in the direction of travel of the vehicle body is rotated clockwise.

In the above embodiment, the front end of the adjustment plate 22 is pivotally attached 23 to the rear end of the gutter 21, so that the height of the rear end 22a of the adjustment plate 22 can be freely adjusted. Although the means for adjusting the lateral feed amount and the amount of spraying in the center-spreading device 15 is configured, in other embodiments, as shown in FIG.
The height of the rear end 122a of the adjustment plate 122 may be freely adjustable by providing the adjustment plate 122 so as to be slidably supported diagonally up and down along the lower surface of the rear end of the gutter 21. In still other embodiments, such adjustment plates 22, 122 are not connected to the gutter 21, but, for example, the front end of the gutter is pivoted to the machine frame, and the height of the rear end is adjusted. By freely supporting the machine frame (not shown),
By supporting the height of the gutter itself with respect to the machine frame so that its displacement can be adjusted, that is, by making the gap between the beater 20 and the gutter 21 adjustable, the amount of lateral feed and the amount of spraying can be adjusted. It may be possible to allow relative increase/decrease adjustment.

Further, in the above embodiment, an example is shown in which the rotary blade 19 of the beater 20 is configured in the shape of a machete blade with a sweepback angle and a twist, thereby giving the beater 20 the function of horizontally feeding the material to be spread. However, in other embodiments, the rotary blade of the beater is configured in the shape of a screw with a known notch (as such a beater is well known, a detailed description thereof will be omitted), and the beater is , the screw surface may also be provided with a function of horizontally feeding the material to be spread.

Furthermore, in the above embodiment, the plate blocking the lower part of the impeller 29 is a disk 30 fixed to the impeller 29, but this disk 30 is supplied above the impeller 29. In other embodiments, this plate is in sliding contact with the lower end of the impeller 29. It may be fixed to the machine frame (not shown).

〔Effect of the invention〕

As described in detail regarding its operation, the scattering device according to the present invention has a cross-feeding/center-spreading device disposed at the rear end of the conveyance device at the outlet of the material to be spread. It consists of a suspended beater and a gutter placed below the beater, and a part of the material supplied to this scattering device is directly spread over a central area of a certain width along the direction of travel of the vehicle. At the same time, the remaining part is fed horizontally to both sides, and is supplied to side spreading devices arranged on both sides of this horizontal feeding/central spreading device, each of which rotates around a vertical axis. Even with a pair of side spraying devices consisting of impellers, it is possible to spread the spray over a wide spread width along the vehicle body traveling direction on the sides of the vehicle body. If the ratio of the spreading amount and the horizontal feed amount of the device is set appropriately in advance to match the spreading capacity of the central spreading device and the side spreading devices on both sides, the two spreading devices can be used to It is possible to spread the material to be spread over a wider spreading area than the
Furthermore, the material to be spread can be uniformly spread over the entire spreading width.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of the dispersion device according to the present invention, Fig. 2 is a vertical sectional side view of the same part, and Fig.
The figure is a rear view of the same, and FIG. 4 is a sectional view of the gutter and adjustment plate showing another embodiment. 1... Spreading vehicle, 2... Packing box, 3... Belt conveyor (conveying device for materials to be spread), 14... Exit for materials to be spread, 15... Horizontal feeding and central part spreading device,
16...Side spreading device, 17...Machine frame, 18...
Rotating shaft, 19... Rotating blade, 20... Beater, 2
1... Gutter, 28... Vertical shaft, 29... Impeller, 3
0...Disc (plate).

Claims (1)

[Scope of Claims] 1. In a scattering vehicle in which a conveyance device for materials to be spread, such as a belt conveyor or a chain conveyor, is disposed on the bottom of a packing box, a material disposed at an outlet of the conveyance device for materials to be spread, such as a belt conveyor or a chain conveyor. A scattering device, which comprises a cross-feeding and center-spreading device for materials to be spread, and a pair of side scattering devices disposed on either side of the cross-feeding and center-spreading device. The above-mentioned cross-feeding/center-spreading device is arranged above and behind the exit of the material to be spread, and the horizontal axis of rotation is connected to the beater, which is horizontally suspended on the machine frame on the vehicle body, and the axial direction of this beater. and a gutter located below the beater along the rotary blade of the beater.
It is provided with a function to scatter part of the material to be spread that is supplied onto the gutter backwards, and a lateral feeding function to send the remaining material to be spread on the gutter from the center in the width direction of the beater to both sides. , and the pair of side spreading devices include an impeller that rotates about a pair of vertical shafts and is disposed below the lateral feed and central spreading device on both sides thereof, and a pair of impellers that rotate below the impeller. A dispersing device characterized by being configured with a blocking plate. 2. The scope of claims, wherein the device for horizontally feeding and centrally dispersing materials to be spread includes means for adjusting the amount of lateral feeding and the amount of spreading to relatively increase or decrease the amount of lateral feeding and the amount of spreading. Spreading device according to item 1. 3. Claim 2, wherein the means for adjusting the amount of lateral feed and the amount of spraying is an adjustment plate connected to the rear end of the gutter so that the height of the rear end can be freely adjusted.
Spreading equipment as described in section. 4. The spraying device according to claim 3, wherein the adjustment plate has a front end thereof pivoted to a rear end of the gutter. 5. The spraying device according to claim 3, wherein the adjustment plate is supported so as to be slidable diagonally up and down along the lower surface of the rear end of the gutter. 6. The means for adjusting the amount of lateral feed and the amount of spraying is constructed by pivoting the front end of the gutter to the machine frame, and supporting the machine frame with the height of the rear end adjustable. The spraying device according to claim 2. 7. The rotary blade of the beater is configured in the shape of a machete blade with a sweepback angle and a twist.
The spreading device according to claim 1, wherein the beater is provided with a function of horizontally feeding the material to be spread. 8. According to claim 1, the rotary blade of the beater is configured in the shape of a screw with a notch, and the screw surface of the beater is also provided with a lateral feeding function for the material to be spread. Spraying equipment. 9. The spraying device according to claim 1, wherein the plate blocking the lower part of the impeller is a disc fixed to the impeller.