DK153338B - GRUSKING VEHICLE WITH PASSENGED SPREADING EQUIPMENT - Google Patents

Description

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DK 153338B

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a gravel vehicle with a mounted spreader and, more particularly, of the kind specified in the preamble of claim 1.

Modern spreading tools of the kind in question are usually arranged for spreading both sharp grained stock material, ie. sand and crushed shards, such as thawing, i.e. especially salt in the dry or wetted state. The wetting of the bed salt is carried out before or during the bedding process by dosed addition of liquid. The wetting is intended to make the flowing material better adhered to the road surface, so that the speed of the spraying vehicle and subsequent vehicles as well as the natural wind does not cause the scattered material to be swept to the side, ie. away from the roadway itself.

In driving on motorways and similar places where the gravel vehicle is moving at high speed, it has been found in practice that, despite the wetting of the irrigation material, a considerable chipping and whirlwind loss of the current material occurs due to the the vehicle arose "suction" and the air turbulence around the vehicle otherwise.

20 The desired distribution of barbed goods is strongly affected and a not insignificant part of the barbed property is wasted. The wasted bedding is not only considered ineffective as a gravel and detergent, but also adversely affects the surroundings. For example, the usual emptying agents have a detrimental effect on trees 25 and planting along the roads.

The object of the invention is to provide a gravel vehicle of the kind in question which simply eliminates the unfortunate effect of the "suction" and the turbulence of the vehicle on the spreading process in order to achieve a more precise and thus economical and environmentally friendly spread of the spray material. .

This is achieved according to the invention by equipping the grinding vehicle with a guiding shield for the vehicle wind generated by the vehicle, as stated in the characterizing part of claim 1.

35 The guide screen is distinguished by being simple and relatively inexpensive; to manufacture and assemble. The screen can be mounted on 2

DK 153338B

pre-existing spreading vehicles. The effect of the guide screen regulates itself depending on the speed of the grinding vehicle, the downward air flow produced by the guide screen in intensity corresponds to the speed of the wind.

5 Even at low driving speeds, a downward flow of air is produced which is capable of driving the blown-down bedding from the spreading plate to the roadway.

The downward flow of air effectively suppresses harmful air vortices and counteracts the problematic "suction" behind the vehicle for the spreading process.

In addition, the downward air flow directed by the guiding screen has proven to have a beneficial effect in limiting the tendency of the iron to deposit in layers on the rear of the vehicle and on the spreading implement itself.

15 This unfortunate propensity is especially pronounced when the irrigation consists of or contains moist or moistened salt. The problem of salt deposits or other types of deposits on the machine parts must in particular be sought in the highly corrosive effect of the material.

20 However, from SE presentation no. 425,014, a front-mounted snow plow with a wing is known which prevents the swirling of snow in the space between, ie. behind the plow and the vehicle that carries and drives the plow. On the rear of this wing is a somewhat similar screen which, from an inward direction forward, over the inlet opening located above the wing, directs air in over and down behind the wing. However, the air is directed to an exit opening located near the roadway. In this embodiment, an attempt is made to prevent the formation of air vortices behind the plow's cutter, such vortices tearing snow from the roadway and causing partly poor visibility for the vehicle driver and partly that snow is sucked and / or blown into the vehicle air intake.

In its simplest embodiment, the guiding screen according to the invention may consist of an upwardly / downwardly inclined plane or backward-facing plate, for example of metal plate or plastic.

However, for use at greater speeds, a particularly large screen stability and extra noise are required for extra driving capacity. P.n nr3f spsf πττη. κητη -hnrr ^ r- hpnsvn

DK 153338B

3 of this, is stated in claim 3. In claim 4, an embodiment is indicated, wherein the guide screen is curved and at the same time forms a downwardly narrowing, almost funnel-shaped end.

This embodiment is particularly suitable when the ejected material is of high specific gravity and / or has good adhesive properties, e.g. wetted salt. The guide screen produces a reinforced and concentrated jet of air, which impacts on the road surface intensively downwards. The effect is advantageous both at high and low speeds.

According to the invention, the guiding shield is conveniently mounted by means of spacers directly on the rear end of the bedding container (claim 5). Another option is to mount the guiding shield directly on the vehicle by means of its holding means. However, since the spreader apparatus is usually dismantled during the summer months, it is best to attach the guide shield to the bedding container so that the screen is mounted and dismounted together with it.

Conveniently, the spacers carrying the guide screen are articulated, for example hinged thereto and / or to the barrel container 20, so that the inclination and position of the guide screen can otherwise be regulated. The height of the guide screen relative to the spreading plate can also be adjusted in this way. The adjustability of the guide screen makes it possible to optimize the spreading conditions irrespective of the nature of the spreading material and the selected running speed.

In a further embodiment according to the invention (claim 7), it is possible to lower the guide screen to a position neutral for the wind speed. This position is used during idle travel (transport travel) for air resistance.

The invention will be explained in more detail in connection with the drawing, in which Fig. 1 shows a gravel vehicle with a guiding screen according to the invention, in side view, Fig. 2 the guiding screen itself viewed diagonally from above in perspective, Fig. 3 a corresponding guiding screen 35 in another embodiment, seen Fig. U is the complete spreading equipment corresponding to that shown in Fig. 1 with the accompanying guide screen in a third embodiment, viewed diagonally from above in perspective,

DK 153338B

Fig. 5 shows the same spreading equipment provided with a guiding screen in a fourth embodiment; Fig. 6 the spreading equipment provided with a guiding screen in a fifth embodiment.

Fig. 1 shows a gravel vehicle 1 on whose load 2 a spreader 3 with associated barrel container 4 is placed. The container 4 has sloping sides 6 leading down to a horizontal trough-shaped transport ring 5. Upwardly, the sides 6 are restricted by a profile iron frame 7. The container rests on 10 three. transverse frame pieces 8, and between these and the frame 7 are inserted vertical side supports 9. In the conveyor gutter 5 is a longitudinal auger conveyor. This one is not visible in the drawing. The auger conveyor is driven by a hydraulic motor 10 at a rate proportional to the speed of the vehicle. The conveyor carries the spray goods out through a horizontal pipe piece 11 which opens into a vertical drop pipe 12. This sits above the spreading tool 13. The drop pipe 12 proceeds downwards in a short sled 14, which delivers the outflowing straw on a 20 about a vertical axis 15. rotating spreading plate 16. During rotation, the spreading material is thrown out in fan form over the roadway.

This is indicated in the drawing by 17. The direction of movement of the vehicle is indicated in the drawing by an arrow 18. The spreading gear 13 is located at the rear of the vehicle with the spreading plate 16 at a relatively small distance across the roadway.

Above the spreader implement 13 at a certain distance from the upper rearwardly limiting edge 19 of the barrel container 4, a guiding wind shield 20 is mounted. The guiding shield 20 is constituted by a metal plate 21 which forms a downwardly facing portion 22 and an upwardly inclined, forwardly bent portion 23. The metal plate 21 is angled with side portions 24 and 25 extending parallel to the longitudinal axis of the vehicle. The side pieces 24 and 25 and the metal plate 21 together form a kind of wind tunnel. By means of a plurality of load-bearing supports 26, 27 35 and 28 which are articulately inserted between the container and the side shields 24 and 25 of the guide, the guiding shield 20 can be rotated

DK 153338B

in various positions. The carriers are based on the container's angular frame 7 and from a bracket mounted on the rear of the container 29. During the spreading process, the guide screen with the top forward end is set at a suitable distance above the litter container 4, so that the screen is able to catch part of the speed wind and lead. this portion in an intense beam down towards the range of bedding thrown from the spreading plate 16. The direction of the air flow is indicated by arrows in Fig. 1.

10 When the spreading equipment is not in use, e.g. during tran sport driving, the guiding shield 20 can be lowered against the barrel container in the position shown by the dotted line in Fig. 1, thereby reducing the air resistance. The guide screen is fixable in this position. The precipitation occurs by moving the guide-screen in the support arms 26,27 and 28.

In Figure 3, the guide screen is shown in one embodiment, wherein the screen itself is composed of an oblique downward rear guide 20/1, a horizontal upper guide plate 21/1 and two side pieces 24/1 and 25/1. The guide screen is wider than the bedding container 20, ie. that the side pieces 24/1 and 25/1 are spaced apart from the side walls of the container. The upper guide surface of the guide screen is at the height of the upper edge of the barrel container. The speed wind is thus taken in from the sides of the vehicle and directed along the inclined, "downward guide 25 20/1 towards the spreading implement 13. In order to achieve a suitable even distribution of air flow over the entire spreading weight it is desirable to equip the guide screen with not shown internal guide means directing the two side air streams toward the center, at least in part. The upper guide surface 21/1 of the guide-30 screen is provided with a rectangular recess 21/2 adapted for the barrel container. Furthermore, angular dragons are available. 33 which holds at the bottom between the guide screen and the barrel container.

DK 153338B

6

The guide screen in this embodiment is distinguished by not increasing the height of the vehicle and by not being in the way of the cover of the barrel container.

In Fig. 4, the guiding shield 20/2 is shown in an embodiment, 5 in which the shield itself consists of an oblique downwardly curved metal plate 22/1, which is provided with side edges 24/2 and 25/2. The guide screen is adjustably mounted on the profile iron frame 7 of the barrel container 4 by means of spacers 26/1 and support arms 27/1. The vaulted metal plate 22/1 is 10 wider than the canister container 4, and at the same time it protrudes above the upper edge of the container, so that the wind speed is gripped both from above and from the sides of the container. The guide screen directs the trapped windward obliquely down to the range of spreading material thrown by the spreading disc 16.

In Fig. 5, the screen displays a wind tunnel 22/3 consisting of an obliquely downward, rear guide 20/3 in the nearly horizontal upper guide surface 21/3 and two vertical side pieces 24/3 and 25/3. The guide screen protrudes beyond the outline of the barrel container 4 both to the sides and upwards to 20 for efficient capture of the speed wind around the container. Both the rear guide 20/3 and the upper guide 21/3 are vaulted. The joint connection line 20/4 of the faces is straight and the vaults start from this straight line 25 in such a way that the forward edge 21/4 of the upper guide is curved, just as the lower end of the rear guide is curved. The guide screen 22/3 is suspended in paired, articulated spacers 26/3 and 27/3 »which are inserted between the side pieces 24/3 and 25/3 and the side lugs of the bed bar 30. The guide screen is adjustable by means of the spacers and associated shown in Fig. 1, and, like the embodiment shown in Fig. 1, can be folded into a transport position favorable to the air resistance.

In Fig. 6, a guiding shield 20/4, 35, whose lower boundary edge 33 is semi-elliptic, is shown to restrict a flow cross-section which is substantially smaller than that of an upper limiter.

DK 153338B

cutting edge limited cross section. The upper restriction edge 34,35 and 36 is formed by two screen side pieces 24/4 and 25/4, and a saddle-shaped upper screen section, whose two saddle surfaces 38 and 39 extend almost parallel to the roof-shaped roof of the bedding container. The guide screen protrudes with its upper constraint 8 to the side relative to the barrel container 4 and above it. Due to the size difference between the windscreen (i.e., the upper bounding edge) and the lower screen cross-section (the bounding edge 33), a smooth 10 narrowing of the flow channel occurs through the guide screen. This constriction causes a velocity increase in the airflow, thereby increasing the desired effect on the bedding.

The guide screen is suspended on the rear end of the barrel container 4 in a guide arm 26/3 on each side. Further, a support arm 15 41 is inserted between the outlet tube 11 of the barrel container 4 and the lower constraint edge 33 of the screen. For this purpose, the outlet tube 11 is provided on the upper side with a bearing bracket 11 'which carries the lower end of the support arm 41 and the screen is provided with a rear facing latch 43, which is connected 20 to the support arm via a plug 42. The latch 43 is secured approximately in the center of the guide screen immediately above the lower end edge of the screen 33. The support arm is provided at its upper end with a plurality of holes 44 into which the plug can optionally be inserted by adjusting the the screen.

25 The guiding screen can be mounted on all existing gravel vehicles in all described embodiments.

Claims (8)

8 DK 153338B Patent Sea 1. A grinding vehicle having a mounted spreader for spreading solid and / or liquid stream materials, said grinding vehicle being provided with a container for the stock material and a spreader disposed behind a container (calculated in the direction of travel), of which the material is dispersed by blow-out in fan form, characterized in that a guide shield (20) for the wind speed produced by the vehicle is arranged over the spreading implement (13), the guide shield protruding above and / or out to side relative to the circumference of the vehicle and / or container (4) and is adapted to catch and direct wind speed downward against the range of flowing material thrown by the spreader implement (16). Gravel vehicle as claimed in claim 1, characterized in that the guide shield (20/2) consists of upwardly inclined downward / backward sloping plane or rearwardly inclined plate (22/1). Grinding vehicle according to claim 1, characterized in that the guide shield forms a wind tunnel (22 / 3.40), which is composed of two approximately parallel portions (24) of the vehicle (1) and / or the longitudinal axis of the vehicle (4). , 25) and one of said side pieces connecting head (21 / 3.38 / 39) which forms a bridge over the barrel container (4) at a distance above its upper constraint edge (19). Gravel vehicle according to claim 1 or 3, characterized in that the guiding shield (20/4) consists of a curved guide surface which narrows downwards and whose lower limiting edge (33) has the shape of a semicircle or half-ellipse. Grinding vehicle according to claims 1-4, characterized in that the guide shield (20) is suspended on the rear end of the bed container (4) by means of spacers (26, 27,28,30,31,32,33). DK 153338 B 9 Grinding vehicle according to claim 5, characterized in that the spacers are articulately connected to the guiding screen and / or the barrel container (4) and that the inclination of the guiding screen is adjustable. Gravel vehicle according to claim 5 or 6, characterized in that the guiding shield (20) is foldable in an air-favorable transport position and is retained in this position. Gravel vehicle as claimed in claim 3, characterized in that the guide screen protrudes only to the sides relative to the bed container (4) and is provided with internal guide means so arranged, for example in the form of ribs or baffles, that these can serve directing the trapped velocity wind towards the center 15 of the guide screen, at least in part.