DE8807901U1 - Manure conveyor - Google Patents

Description

HAIGF.S I,'..' '..·'..· ·..·'..· # 200

81

Nice friction

The invention relates to a manure conveyor for batch-wise removal of manure from the stable via a straight manure trough that leads from the stable into the open air; with a push rod arranged on the manure trough, which can be moved back and forth in its longitudinal direction, to which several slides are hinged, if necessary indirectly, which can each be pivoted between a feed position secured by a stop transverse to the longitudinal direction of the manure trough for the purpose of conveying manure, and a retraction position approximately parallel to this longitudinal direction; and with a double-acting hydraulic cylinder that can be connected to an electro-hydraulic drive unit, which is arranged along the manure trough and whose piston rod is indirectly coupled to the parallel push rod.

In known manure conveyors of this type, the sliders, especially the front slider designed as a pressure flap, are left to themselves and to the forces exerted by obstacles such as piles of manure on the

Slider can be used if it is operated by means of the

Push rod in the manure trough can be moved forwards or backwards. However, this does not guarantee that the sliders will change their forward and backward positions properly when the push rod changes its direction of movement.

It has therefore already been proposed to install a vertically springy friction element, preferably a leaf spring at the top, on the movement path of the push flap, to touch the upper edge of the front slide

Itff·

II

The

This friction element (leaf spring) is also intended to ensure a smooth change of the retraction and advance positions of the pressure flap after changing the return stroke and the advance stroke of the push rod, if there is no manure on the bottom surface of the wall of the compression section of a pressure chamber that accommodates this flap in front of or behind the slide to be pivoted, so that it cannot happen that during the advance stroke of the push rod the pressure flap passes a ready pile of manure in its retraction position instead of moving it forward in its advance position, and that during the return stroke of the push rod the pressure flap in its advance position hits a ready pile of manure instead of passing it in its retraction position.

It has been found that the friction element (leaf spring) only partially fulfils its function.

The invention is therefore based on the task of creating a manure conveyor of the type mentioned above which avoids this disadvantage and which ensures that at least the front slide (push flap) changes its two positions (advance or retraction) perfectly at all times and does not fall into intermediate positions.

j remains, causing dysfunction

This object is achieved according to the invention in that at least the frontmost slide can be moved into its advance and retraction positions when the forward or return stroke of the piston rod begins.

This advantageously ensures that

30 in particular the pressure flap, which is mainly j important, its function in every direction of movement of the

j push rod completely fulfilled.

A preferred embodiment of the manure conveyor according to the invention is characterized by a coupling of the two

S t ?&eegr;ge:&igr; ri-, i i '. . . <; i &igr;:e i on the piston rod, guided on the push rod in its longitudinal direction, which, during the forward stroke of the piston rod, hits a front stop on this slide that extends the foremost slide beyond its pivot axis and, during the return stroke, hits a rear stop on the push rod. This easily delays the movement of the push rod and thus the slide until the point at which the piston rod has first carried out the pivoting movement of the foremost slide (pressure flap). The piston rod is therefore alone capable of both pivoting the slide and shifting the slide along the gutter.

In the preferred embodiment, the

Coupling the two rods has a pressure body attached to the push rod, which supports the front slide, as is the case with the known manure conveyors, where the piston rod is also attached to the pressure body, in order to establish the coupling. In the preferred embodiment, however, it is provided that the pressure body has a lateral guide plate and the impact body has an upright-mounted impact plate that can be moved on the guide plate. This enables the front slide to be swiveled perfectly into its forward position despite the small overall width of the impact body.

In the preferred embodiment, the impact body has a journal bearing of a rotary joint between the piston rod and the impact plate, which cooperates with the rear stop on the push rod, and this journal bearing immediately hits a central stop on the pressure body when the piston rod advances, when the frontmost slider hits a stop on the pressure body that determines its advance position. This

1(1

ti ■■ at · r

I II · · ·

t ill· · * « *

the front stop on the foremost slide relieves the part of the impact force of the impact body which is not used to pivot the slide into the forward position, but to move the pressure body forward.

The pressure body of the preferred embodiment has, like the known manure conveyors, two triangular bearing plates lying one above the other, the front edges of which, running transversely to the longitudinal direction of the manure gutter, form the stop for the front slide in its forward position. However, while in the known manure conveyors the front slide (pressure plate) is not mounted on the bearing plates, but on another part of the pressure body, in the preferred

Embodiment of the manure conveyor according to the invention

It is provided that the pivot axis of the frontmost slide is mounted on the two bearing plates that are attached at right angles to the lateral guide plate of the pressure body; and that a web connecting the two bearing plates is provided as the central stop of the pressure body. This design ensures a long service life of the pressure body, which is subject to heavy loads.

In the preferred embodiment, the Impact plate impactable stop at the front

Slider is connected to the impact plate by means of at least one link of a chain. In this simple way, it is ensured that the impact plate, when pulled back by means of the piston rod, exerts a torque on the two-armed lever formed by the front slider and its stop via the chain link, so that this pressure flap safely reaches its retraction position. - Instead of the chain link on the impact plate, there could be a direct, articulated connection between this stop and the piston rod, designed

■ ft ·· ft ft · &pgr;

■ · t t · · t »1

&bull;pC · · · ·

for example by means of a tenon and a slot.

In the preferred embodiment, at least one of the slides following the foremost slide (pressure flap) is hinged to the push rod by means of a coupling on the impact body. As a result, each of these slides following the pressure flap is also positively controlled parallel to the pressure flap.

This is designed in the preferred embodiment, the slides following the frontmost slide are each provided with a sleeve-shaped pivot bearing, as is also the case with the known manure conveyors, in that the pin of the pivot of at least the second slide is mounted on the lower bearing plate of the pressure body and a tab is provided as a coupling, which is hinged to the impact plate and to an end point of its bearing sleeve that is diametrical with respect to the second slide, whereby the frontmost and the following slides reach their advance and retraction positions at the same time. Since the second and the following slides are relatively small or light in comparison with the frontmost slide, which is designed as a relatively large and heavy pressure flap, the engagement of the coupling tab on the pivot bearing of the slides is sufficient for their desired parallel pivoting.

&bull; · «&igr; ■· f* *·

The invention is explained in detail below using two alternatives of the preferred embodiment of the manure conveyor according to the invention, shown by way of example in the drawing. It shows:

Fig. 1a and b perspective views of a

first alternative of the preferred embodiment without second slider (for better clarity) with the frontmost

Slide in feed or Retreat position

Fig. 2a and b Top views of this first

Alternative with front slide in feed or retraction position

Fit^. 3 a Fig. 2a corresponding

Top view of a second alternative of the preferred embodiment

Fig. 4 a Fig. 1a corresponding

perspective view of the

first alternative with second slider and

Fig. 5a and b schematic plan views of

a detail of the in Fig. A

Depicted with the second

Slider in advance or retraction position

Since the two alternatives of the preferred embodiments of the manure conveyor according to the invention differ from each other only in one detail, they will initially be described together.

In a rectangular pressure chamber (1), which is connected to a manure ejector (16), the

\. front slide of the manure conveyor one the

s Cross-sectional area of the chamber approximately filling

^; Pressure flap (3) which opens the second lower

R: Slider (15) from a manure trough, the front

% 5 section receives the pressure chamber, pushes the manure conveyed into it through the pressure chamber to the manure ejection, where

the compressed manure forms a manure layer growing from below. In the manure trough (not shown), a third slider (9) and subsequent identical sliders are arranged equidistantly, so that manure stored on the bottom of the trough is transported step by step from one slider to the other further forwards, finally into the pressure chamber (1) and through the manure ejector (16) into the open air.

The pressure flap (3) is a flat rectangular plate which is placed upright and is provided on its rear side with a wedge-shaped pivot bearing (17) which receives a vertical pivot pin (18) whose two ends are held in two superimposed triangular bearing plates (13 and 19) of a pressure body (2) which has a lateral, vertically placed guide plate (20) which freely supports the two bearing plates. The pressure body (2) is rigidly connected, in particular via its guide plate (20), to the front end of a push rod (5) guided in the longitudinal direction of the manure trough, on which the third slide (9) and the other slides (not shown), which are also plate-shaped and positioned on edge, can be pivoted about vertical stub axles (21) between a feed position shown in Fig. 1a and A perpendicular to the push rod (5) and a retraction position close to the contact with the push rod, in which their ends remote from the stub axle point towards the pressure chamber (1), as is indicated in Fig. 5b for the second slide (15). The third slide (9) and all

■ V W W * ■ VV* 1

I · ItI ¹ Rg'
t I · · · II ° ^W I (

The following slider is left to itself, since an obstructive pile of manure in the manure gutter forces the slider into its forward and backward stroke of the push rod (5) into its forward and backward position, which is determined by the slider's stops on the push rod.

Unlike the other slides, the pressure flap (3) and the second slide (15) are positively controlled as follows: Between the two bearing plates (13 and 19) slides on the inside of the guide plate (20) an adjacent, upright push plate (A) of a push body (22), which can be moved back and forth along the push rod (5) within the pressure body (2) by means of a piston rod (8) of the double-acting hydraulic cylinder (not shown) of an electro-hydraulic drive unit. For this purpose, a swivel joint (23) is provided between the push plate (A) and the piston rod (8), the reinforced bearing (2A) of which strikes a central stop of the pressure body (2) during the forward stroke of the piston rod, which acts as a vertical web (10) between the two

bearing plates (13 and 19). During the return stroke

of the piston rod (8), the joint bearing (24) abuts against a rear stop (12) of the pressure body (2) on the front flange of the piston rod . The distance of the web (10) from the rear stop (12) measured along the push rod (5) is dimensioned such that the displacement path of the push plate (A) determined thereby is sufficient to allow the pressure flap (2) to completely change position. This change of position is brought about by the fact that the front end of the push plate (A) is provided with a stop bar (11) reinforcing its front edge, which, during the forward stroke of the piston rod (8) while the pressure body (2) is at a standstill, pushes against a lateral extension (25) serving as a front stop of the push plate (A) in its retracted position.

Pressure flap (3) so that this flap is initially

&igr; Bt it · «

to its stop on the parallel front edges (26 or 27) of the lower bearing plate (13) or the upper bearing plate (19) is pivoted into its forward position before the push plate (A) pushed further forward pulls the push rod (5) with the sliders from the third forward via the extended pressure flap (3) and the pressure body (2). For the reverse change of the flap position by retracting the lateral extension (25) of the pressure flap (3) by means of the push plate (4) pulled back from the piston rod (8), in the first alternative of the preferred embodiment according to Fig. 1, 2 and 4 an oval chain link (28) made of round wire is provided, which is placed around two pins (28) and (29) which are on the

Flap extension (25) or the front end of the

impact plate (4). In the »further alternative of the preferred embodiment, instead of a single chain link according to Fig. 3, a short chain strand (7) is provided, which covers the back of the

Flap extension (25) and the inside of the

- It is important that the reinforced joint bearing (2A) on the web (10) and the pressure flap (3) on the front edges (26 and 27) of the two bearing plates (13 and 19) strike at the same time when the piston rod (8) carries out the limited forward stroke of the impact plate (A) in the pressure body (2), while the strip (11) on the impact plate acts on the flap extension (25) in the sense of pivoting the pressure flap (3) from its retracted position to its forward position.

According to the invention, there is therefore a coupling of the two rods (5 and 8) by means of the two bodies (2 and 22), which causes the pressure plate (3) as the front slide to be forcibly moved into its advance and retraction positions when the advance or retraction is reached.

,910',,'

Return stroke of the piston rod (8) begins. - In order to also force the second slide (15), a coupling in the form of a tab (14) is provided between the latter and the impact body (22), which is hinged on the one hand to the inside of the impact plate (4) and on the other hand to a swivel bearing (30) of the second slide, namely at a point (31) on the upper end face of the sleeve-shaped bearing, which is arranged diametrically with respect to the actual slide (15). The arrangement is such that the pressure flap (3) and the second slide (15) simultaneously reach their advance and retraction positions, which are shown for the second slide in Fig. 5a and b respectively.

Claims (8)

A1 claims 1.) Manure conveyor for batch-wise removal of manure from the stable via a straight manure trough that leads from the stable to the outside; with a push rod (5) arranged on the manure trough and movable back and forth in its longitudinal direction, to which several slides (3 and 15 and 9) are hinged, if necessary indirectly, which can each be moved between a feed position secured by a stop (26, 27) transverse to the longitudinal direction of the manure trough for the purpose of conveying manure, and a retraction position approximately parallel to this can be pivoted longitudinally; and with a Electro-hydraulic drive unit connectable to a double-acting hydraulic cylinder which is arranged along the gutter and whose piston rod (8) is indirectly coupled to the parallel push rod (5), characterized in that at least the frontmost slide (3) can be forcibly moved into its advance and retraction positions when the forward or return stroke of the piston rod (8) begins. 2.) Manure conveyor according to claim 1, characterized by a coupling of the two rods (5 and -5) by means of a material body (22) mounted on the piston rod (8) and guided on the push rod (5) in its longitudinal direction, which, during the forward stroke of the piston rod, hits a front stop (25) on the slide that extends the foremost slide (3) beyond its pivot axis (18) and, during the return stroke, hits a rear stop (12) on the push rod. rc · «rf· *· t .11 · ■ · · &bull; · "te· 3.) Manure conveyor according to claim 2, wherein the coupling of the two rods (5 and 8) has a pressure body (2) attached to the push rod (5) and supporting the foremost slide (3), characterized in that the pressure body (2) has a lateral guide plate (20) and the impact body (22) has an upright-mounted impact plate (4) which is displaceable on the guide plate. 4.) Manure conveyor according to claim 3, characterized in that the impact body (22) has a journal bearing (24) of a swivel joint (23) between the piston rod (8) and impact plate (4) which cooperates with the rear stop (12) on the push rod (5), and this journal bearing simultaneously hits a central stop (10) of the pressure body (2) during the forward stroke of the piston rod when the frontmost slide (3) hits a stop (26, 27) on the pressure body (2) which determines its forward position. 5.) Manure conveyor according to claim 4, the pressure body (2) of which has two triangular bearing plates (13 and 19) lying one above the other, the front edges (26 and 27) of which run transversely to the longitudinal direction of the manure gutter and form the stop for the foremost slide (3) in its forward position, characterized in that the pivot axis (18) of the foremost slide (3) is mounted on the two bearing plates (13 and 19) which are fastened at right angles to the lateral guide plate (20) of the pressure body (2); and that a web (10) connecting the two bearing slats (13 and 19) is provided as the central stop of the pressure body (2). _A -&Lgr; 6.) Manure conveyor according to one of claims 3 to 5, characterized in that the stop (25) on the frontmost slide (3) that can be acted upon by the impact plate (O) is connected to the impact plate by means of at least one link (6) of a chain (7). 7.) Manure conveyor according to one of claims 2 to 6/ characterized in that at least one (15) of the sliders (15 and 9) following the foremost slider (3) is articulated on the push rod (5) by means of a coupling (14) on the impact body (22). 8.) Manure conveyor according to claim 7 with 5, the slides (15 and 9) following the frontmost slide (3) are each provided with a sleeve-shaped rotary joint bearing (30), characterized in that the pin (21) of the rotary joint (21, 30) of at least the second slide (15) is mounted on the lower bearing plate (13) of the pressure body (2) and a tab (1A) is provided as a coupling, which is attached to the impact plate (4) and to a diametrical end point with respect to the second slide (15). (31) is hinged to its bearing sleeve (30), whereby the front and the following slide (3 or 15) simultaneously reach their advance and retraction positions.