Hose Connector System For An Agricultural Spreader Machine

Abstract

The invention relates to a hose connector system (1) for use in an agricultural spreader machine (15), which system is characterized by rapid and secure assembly, and therefore economical production and high modularity.

Claims

1. Hose connector system (1) for an agricultural spreader machine (15) for spreading granulated or ground material such as fertiliser or seeds, whereby the material is transported through dimensionally stable hose lines (2), whereby one end of the hose line (2) is inserted into an opening (3) at an outlet (4) and the other end of the hose line (2) is inserted into an opening (6) at an inlet (7), whereby at least one end of the hose line (2) is fitted with an additional outer sleeve (9), which is placed detachably onto the end of the hose line and projects at least partially into an opening (3, 6) at the inlet (7) or outlet (4), whereby the opening (3, 6) and the outer sleeve (9) are designed to be lockable towards each against axial movability, characterised in that the inside surface of the outer sleeve (9) has one or more elevations (10) that form the clear inside diameter of the outer sleeve (9) and the clear inside diameter of the outer sleeve (9) is less than the nominal diameter of the outer surface of the hose line (2) in the inserted state, whereby the outer sleeve (9), whose internal diameter is partially constricted by elevations, presses with its elevations into the partially elastic material of the hose line (2).

2. Hose connector system in accordance with claim 1, characterised in that the wall of the hose line (2), preferably the outer wall, is designed with spiral elements.

3. Hose connector system in accordance with claim 2, characterised in that one or more elevations (10) of the inside surface of the outer sleeve (9) are also designed with a spiral shape, whereby the direction of rotation corresponds to that of the spiral elements of the hose lines.

4. Hose connector system in accordance with claim 1, characterised in that the outer sleeve (9) has one or more at least partial recesses or slots (11) in an axial direction.

5. Hose connector system in accordance with claim 1, characterised in that the opening (3, 6) and the outer sleeve (9) are designed to be lockable towards one another against rotatory movability.

6. Hose connector system in accordance with claim 1, characterised in that the outer sleeve (9) is divided into in several sections.

7. Hose connector system in accordance with claim 1, characterised in that the sections of the outer sleeve are designed hinged towards each other.

8. Hose connector system in accordance with claim 1, characterised in that one or more sections of the outer sleeve are designed to be fixable with each other positively by means of snap-in elements.

9. Hose connector system in accordance with claim 1, characterised in that that there is an additional coupling adapter for holding a measuring or control device for fastening in the outlet or inlet (4, 7), which has openings at its outlet or inlet openings for holding an outer sleeve (9) and a hose (2) in accordance with the above claims.

10. Agricultural spreader machine with one or more hose connector systems (1) in accordance with claim 1.

11. Connection for a hose connector system (1) for an agricultural spreader machine (15) for spreading granulated or ground material such as fertiliser or seeds, whereby the material is transported through dimensionally stable hose lines (2), whereby one end of the hose line (2) is inserted into an opening (3) at an outlet (4) and the other end of the hose line (2) is inserted into an opening (6) at an inlet (7), whereby at least one end of the hose line (2) is fitted with an additional outer sleeve (9), which is placed detachably onto the end of the hose line and projects at least partially into an opening (3, 6) at the inlet (7) or outlet (4), whereby the opening (3, 6) and the outer sleeve (9) are designed to be lockable towards each against axial movability, characterised in that the inside surface of the outer sleeve (9) has one or more elevations (10) that form the clear inside diameter of the outer sleeve (9) and the clear inside diameter of the outer sleeve (9) is less than the nominal diameter of the outer surface of the hose line (2) in the inserted state, whereby the outer sleeve (9), whose internal diameter is partially constricted by elevations, presses with its elevations into the partially elastic material of the hose line (2).

Description

[0015] Further details and advantages of the object of the invention result from the following descriptions and the associated drawings in which an embodiment is shown with the necessary details and individual parts.

[0016] FIG. 1 shows the schematic structure of an agricultural spreader machine in a side view,

[0017] FIG. 2 shows the schematic structure of distributor device in a side view,

[0018] FIG. 3 shows a cross-section through a distributor head with outlets, and

[0019] FIG. 4 shows a cross-section through an element of the distributor device.

[0020] FIG. 1 shows an agricultural spreader machine 15, which is mounted here on a rotary harrow 20 with packer roller 21. Combinations of the spreader machine 15 with other soil cultivation devices are just as possible as solo operations on a tractor that is not shown here. The tractor serves at the same time to drive and move the agricultural spreader machine 15. The agricultural spreader machine 15 can be equipped with a chassis. Fertiliser or seed is carried in container 16 and is metered with a metering device that is not shown into the feed line 17 during operations of the spreader machine 15 in dependence on the distance travelled. The distance travelled is transmitted to the metering device via a roller feeler 30 that is connected to the spreader machine 15. A dosing computer can intervene in the setting and the drive of the metering device to regulate. In the process, the blower 16 ensures a flow of air that transports the material into the distributor head 5 and from there into the respective distributor devices 8 through several hose lines 2.

[0021] FIG. 2 shows a distributor device 8. This is shown in the form of a double disc coulter 18, of which several are arranged on a cross frame 22 laterally spaced next to each other. As can be seen in FIG. 1, an offset of the double disc coulters 18 in the direction of travel 27 is possible. One each of the double disc coulters 18 is connected to the cross frame 22 vertically movable via a bearing element 23. The depth guidance to the ground is provided by the support wheel 19 and the arm 24, which is also connected to the cross frame 22 vertically movable via the bearing element 23. The connection element 25 in the form of a traction cable guides the double disc coulter 18 and the arm 24 with support wheel 19 practically parallel in the height to the ground. A pressure force can be exercised on the double disc coulter 18 through the press-in element 26, which causes the double disc coulter to penetrate the surface of the soil with its inclined rotating discs and forms a furrow for depositing the seed or the fertiliser.

[0022] As already described in FIG. 1, an air-material mix is blown vertically upwards through the feed line 17 into the distributor head 5. The air-material flow is distributed evenly over all outlets 4 as a particle flow via a cone that is not shown and transported via the hose line 2 into the respective distributor devices 8. When this is done, individual outlets 4 can be blocked, for example, to form tramlines or for part-width section control.

[0023] FIG. 3 shows the actual hose connector system 1 in a cross-section through a part of the distributor head 5. The particle flow is blown out of the distributor head 5 through the outlet 4 into the hose line 2. To prevent the particle flow from being disturbed or braked through the end of the hose line 2, a sleeve 13 is inserted into outlet 4 that projects into the hose line 2 and in this way enables a collision-free particle flow. This sleeve 13 can also be a component of the distributor head 5. The outer sleeve 9 is slipped over or screwed onto the hose line 2, whereby a front stop edge 28 guarantees complete and fault-free sliding of the outer sleeve 9 onto the hose line 2. The outer sleeve 9 is circumferentially rounded in the rear section of the interior diameter surface to prevent premature wear and fracture of the hose lines 2. A trumpet-shaped attachment or elastic extension elements that stabilise the hose are also conceivable. In the front section of the hatched visible outer sleeve 9 the slot section 11 as a recess in the lengthwise direction of the outer sleeve 9 is detectable without hatching. This is widened slightly when the outer sleeve 9 is slid onto the hose line 2 and makes sliding on easier. When the outer sleeve 9 with the fitted hose line 2 is inserted into the opening 3, this can be pushed against the inside edge of opening 3 or of distributor head 5 precisely up to the sealing butt joint of the front edge 28 of the outer sleeve 9. The outer sleeve 9 is axially secured and fixed with a corresponding, circumferential groove or tangent slots through the locking mechanism 12 in the form of a wire bow or with pins, which touch or penetrate the cylinder surface of opening 3 preferably vertically through suitable holes in the distributor head housing 5. Other securing systems are also conceivable, for example automatically hooking clips. Through suitably selected diameter tolerances for the outer sleeve 9 and opening 3 the outer sleeve 9 is pressed together over its whole length to a defined inside diameter. The elevations 10 attached to the inside diameter surface of the outer sleeve 9 are pressed firmly into the hose line 2 and make the virtually positive-locking connection between hose line and outer sleeve 9. In the slot area 11 of the outer sleeve 9 there is also a convex shaped spring that, with a matching groove in the surface of opening 3, prevents axial twisting of the components towards each other.

[0024] FIG. 4 shows a partial cross-section through the inlet 7 of the distributor device 8, here a channel element 29, which guides the fertiliser or the seed as a particle flow from the hose line 2 through the inlet 7 and the double disc coulter 18 to near the furrow in the soil formed by the double disc coulter 18. Analogously to the description of FIG. 3, the outer sleeve 9 is pushed onto hose line 2 up to the stop edge and the unit consisting of outer sleeve 9 and hose line 2 is pushed into the opening 6 of inlet 7. An inner sleeve can be done without here, care must only be taken that inside contour of channel 29 that connects with the opening 6 is greater than the inside width of hose line 2, in order to guarantee perfect particle flow without disruptive edges.