BE1017306A3 - LOADING AND UNLOADING BUCKET. - Google Patents

Abstract

The present invention relates to a bucket (100) for loading and unloading intended to be coupled to a lifting arm (B) of a self-propelled machine (M), the bucket (100) comprising a bucket (110), a hedgehog ( 160) mounted in an articulated manner on the bucket (110) by means of arms (151, 152) against an operating means (180) for extracting from the product stored in a silo (s), a deflector (200) ) disposed near the hedgehog (160) to return in the bucket (110) the product extracted by the hedgehog (160), the deflector (200) comprising a movable wall (232). According to the invention, the relative movement of the movable wall (232) is slaved to that of the arms (151,152). The orientation of the movable wall of the deflector relative to the opening of the bucket can thus be defined so that the movable wall can return to the inside of the bucket, and in particular in its rear part, the product particles extracted. silo by the hedgehog.

Description

Bucket for loading and unloading.

The present invention relates to a bucket for loading and unloading intended to be coupled to a self-propelled machine, such as an agricultural tractor, a telescopic loader.

Such a bucket is suitable for transporting bulk products and for example food between a storage silo and a mixing and dispensing body without a loading system.

To facilitate the collection of stored food, the bucket may be provided with a hedgehog rotated between two arms mounted hingedly on the bucket. This hedgehog, which is provided with knives, is intended to be moved vertically by the arms along a wall of the silo and in front of the loading opening of the bucket, so that the knives scrape said wall to extract particles of water. food that is ejected towards the bucket. To promote a better filling of the bucket, that is to say to prevent too much food from falling outside the bucket, it was thought to place near the hedgehog a deflector. This is shown in particular in patent application DE-A-199 14 00. The deflector presented in this document is of orientable type. U is rotatably mounted around the axis of the hedgehog. It comprises a curved plate for channeling the product particles towards a container and here a trailer and a stop that can slide against the scraped wall of the silo to guide the curved plate. However, the orientation of this curved plate is approximate so that the effectiveness of the deflector is affected.

The object of the invention is therefore to provide a loading and unloading bucket provided with a hedgehog mounted movably in front of the loading opening of the bucket, and near which is installed an articulated baffle, and whose operation is more efficient.

For this purpose, there is provided a loading and unloading bucket intended to be coupled to a lifting arm of a self-propelled machine, the bucket comprising a bucket, a hedgehog mounted in an articulated manner on the bucket by means of arms. against a means of maneuver for extracting the product stored in a silo, a baffle disposed near the hedgehog to return in the bucket the product extracted by the hedgehog, the baffle comprising a movable wall. According to the invention, the relative movement of this movable wall is slaved to that of the arms.

The orientation of the movable wall of the deflector relative to the opening of the bucket can thus be defined so that the movable wall can return to the inside of the bucket the product particles extracted from the silo by the hedgehog. Advantageously, the orientation of the movable wall is defined so that the product particles can be sent into the rear part of the bucket to lead to a complete filling thereof.

According to an additional feature of the invention, the bucket is provided with a hydraulic actuator capable of being operated by the movement of one of the arms to supply a hydraulic jack arranged so as to be able to modify the orientation of the movable wall.

This simple construction makes it possible to obtain an independent operation of the movable wall of the deflector.

According to an additional feature of the invention, the hydraulic actuator and the hydraulic cylinder are identical hydraulic cylinders of the double-acting type.

According to an additional feature of the invention, the arms are fixed on the bucket by means of joints held in rearward displacement of the bucket by respectively two supports.

Thanks to this construction, the hedgehog digs less the wall of the silo during its displacement than a conventional bucket.

According to an additional feature of the invention, the bucket comprises lateral flanks, each support consisting of a flange fixed against a lateral flank having a projecting portion, so that each joint can be mounted between the projecting portion of the side flank and the corresponding flange.

According to an additional feature of the invention, the baffle is provided with a fixed wall.

This fixed wall is arranged so as to return to the inside of the bucket the product particles that it receives directly from the hedgehog or return them towards the movable wall.

According to an additional feature of the invention, the fixed wall comprises a flat wall attached to a crossbar connecting the arms facing towards the bucket and which extends in the direction of the hedgehog, the front portion of the fixed wall extends beyond a plane perpendicular to said wall and secant to the axis of the hedgehog, the front portion of the fixed wall having a curved area turned towards the hedgehog.

According to an additional feature of the invention, the movable wall is fixed by a hinge on the rear part of the fixed wall.

A deflector of simple construction having a fixed wall and a movable wall is obtained.

According to an additional feature of the invention, a tab is provided on the back of the mobile wall and on which is fixed an articulation of the hydraulic cylinder, the other articulation of said cylinder being fixed on a return provided on the rear part of the fixed wall .

According to an additional feature of the invention, the hydraulic actuator is mounted in an articulated manner, on the one hand, between a support and, on the other hand, on one of the first branches of one of the arms.

The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in connection with the attached drawings, among which: FIG. . 1 represents a view of a self-propelled machine provided with an articulated arm on which is mounted a loading and unloading bucket according to the invention, FIG. 2 is a perspective front view of a loading and unloading bucket according to the invention, FIG. 3 is a perspective rear view of a loading and unloading bucket according to the invention, FIG. 4 is a side view of a loading and unloading bucket provided with a collection device placed in a raised position according to the invention, FIG. 5 shows a side view of a loading and unloading bucket provided with a collection device placed in a low position according to the invention, FIG. 6 shows a view of a self-propelled machine provided with an articulated arm on which is mounted a loading and unloading bucket whose collection device is placed in a high position according to the invention, FIG. 7 shows a view of an articulated arm of a self-propelled machine and on which is mounted a loading and unloading bucket whose collection device is placed in an intermediate position according to the invention and, FIG. 8 shows a view of an articulated arm of a self-propelled machine and on which is mounted a loading and unloading bucket whose collection device is placed in a low position according to the invention.

The loading and unloading bucket 100 shown in FIG. 1 is carried by the lifting arm B of a self-propelled machine M such as a telescopic loader as shown.

The self-propelled machine can thus move and maneuver the bucket 100. The bucket 100 is intended to collect the product stored in a silo to transport it and dump it at a designated location. It is particularly suitable for extracting a grass or corn silage stored in a silo for transporting it and then pouring it into a food distribution bin. Only this application for collecting and transporting animal feed is presented in the remainder of this description.

The bucket 100 of loading and unloading essentially comprises a bucket 110, a coupling device 130 of the bucket 100 to the lifting arm of the self-propelled machine, and a collecting device 150 for extracting the product stored in a silo for send it in the bucket 110.

The bucket 110 forms a container for the products to be transported. It is constituted in Figs. 2 and 3 of a rear wall 111 intended to be turned towards the self-propelled machine, a front wall 112, interconnected by a bottom 113, and which are all three laterally bordered by two side francs 114,115.

The collection device 150 is intended to extract the product stored in silo for the projecting in the bucket 110. It is provided with a hedgehog 160 mounted in an articulated manner on the bucket 110, in front of its opening of loading and unloading, in order to it can be moved, by means of an operating means 180, against a wall of a silo S which it is desired to collect a quantity of product to transfer it inside said bucket as it appears in FIGS. 6.7 and 8.

The collection device 150 thus comprises in FIGS. 2 and 3 two taras 151, 152 generally L-shaped profile respectively provided with two first branches 151a, 152a rotatably mounted on the two lateral flanks 114,115 and which are extended by respectively two second branches 151b, 152b between which is rotatably mounted on Hedgehog 160. The collection device 150 further comprises in these Figs. 2 and 3 a deflector 200 for returning to the interior of the bucket 110 the product extracted by the hedgehog 160.

In FIG. 3, the collecting device 150 is mounted in an articulated manner on the bucket 110, at the free ends of the first branches 151a and 152a, via two joints 153 and 154. These joints 153 and 154 are held in a rearward position. of the bucket 110 by respectively two supports 155 and 156. This construction makes it possible to increase the distance separating the hedgehog 160 from its joints 153, 154 which, in operation, makes it possible to reduce the digging of the vertical wall of the silo during the work of the hedgehog 160 during its movement by the 180 operating means. This construction also makes it possible to reach the top of the wall of the silo without moving the bucket.

Each support 155, 156 is constituted by a flange fixed at the level of the rear wall 111 against a lateral flank 114 or 115 having a projecting portion, so that each hinge 153, 154 can be mounted between the projecting portion of the side flank 114 or 115 and the flange 115,156 corresponding.

In FIG. 2, the hedgehog 160 consists of a cylinder 162 around which is mounted a plurality of scraping means 170.

The cylinder 162 is rotatably mounted around a shaft 163 held at one end by a bearing fixed on the second leg 151b of an arm 151 and held at its other end by a drive means disposed in a housing 164 fixed on the second branch 152b of the other arm 152. This housing 164 is housed in one end of the cylinder 162. The drive means advantageously consists of a hydraulic motor intended to be powered by the hydraulic circuit of the self-propelled machine to allow the rotational driving of the cylinder 162 supporting the scraping means 170.

A free wheel, not shown, is also mounted between the hydraulic motor and the shaft 163 supporting the cylinder 162 to reduce operating jolts. This freewheel is preferably of the hydraulic type comprising a non-return valve.

In FIG. 2, the scraping means 170 consist of a plurality of knives 174 protruding at the periphery of the cylinder 162 to tear the product stored silo during the movement of the hedge 160 against a wall of said silo during its rotation. The extracted product is then centrifuged towards the deflector 200 which returns it inside the bucket 110 where it is packed. The knives 174 are regularly distributed around the cylinder 162. They are also distributed in rows arranged parallel to the shaft 163 and / or arranged helically around the cylinder 162.

The knives 174 are positioned inclined relative to a plane perpendicular to the axis passing through the shaft 163. The inclination of the knives 174 is common in the same row. The value of this inclination is preferably equal to 45 °.

The collection device 150 is movably mounted between a so-called high position where the hedgehog 160 can reach the upper part of a silo, as shown in FIG. 4 and 6 and a so-called low position where the hedgehog 160 can reach the lower part of a silo, as shown in FIG. 5 and 8.

Between these two positions, the hedgehog 160 can, in collaboration with the deflector 200, return to the bucket 110 the product collected in the silo.

In Figs. 4 and 5, the operating means 180 of the collection device 150 consists of a pair of hydraulic cylinders of the double-acting type intended to be supplied by the hydraulic circuit of the self-propelled machine. The hydraulic cylinders are anchored on the first branches 151a, 152a of the arms 151,152 and between the supports 155, 156 and the lateral flanks 114,115.

In Figs. 3, 4 and 5, the deflector 200 is fixed on a cross member 157 mounted between the two first branches 151a, 152a being disposed above the arms 151,152 and near the hedgehog 160.

The deflector 200 comprises a fixed part 210 and a movable part 230 moved by an operating means 250 such as a hydraulic cylinder, preferably double-acting type.

The direction of rotation of the hedgehog 160 is indicated by the arrow R in FIGS. 4 and 5. The direction of rotation is such that during operation the hedgehog 160 ejects the material that it is likely to tear from a silo and then return it towards the fixed portion 210 and the movable portion 230 if although the product ricochets on them to be transferred inside the bucket 110. On the left views of the bucket 100 shown in these Figs. 4 and 5, the direction of rotation R of the hedgehog is of the anti-clockwise type.

In Figs. 4 and 5, the fixed part 210 comprises an envelope fixed on the cross-member 157 and which has a wall 212 turned towards the body 110 and which extends towards the hedgehog 160.

The front part of this wall 212, that is to say the one extending in the direction of the hedgehog 160, extends below a plane perpendicular to said wall and which is intersecting with the axis of the hedgehog 160. The front portion of the wall 212 has a curved zone turned towards the hedgehog 160 to capture closer to the silo the product particles torn off and projected by the hedgehog 160. This fixed wall 212 can thus return to the inside of the bucket 110 the particles of product that it receives directly from the hedgehog 160 or return them towards the mobile part 230.

The movable portion 230 comprises a wall 232 whose relative movement is linked to that of the arms 151,152. The orientation of the wall 232 can thus be modified so that it can return to the interior of the bucket 110 the product particles which strike it and which come from the hedgehog 160 or the fixed wall 212, the orientation of the wall 232 is advantageously defined so that the product particles can be returned to the rear part of the bucket 110, that is to say in the direction of its rear wall 111 so that the bucket 100 can be filled completely when it is arranged in its loading position, that is to say with its front wall 112 placed almost horizontally as shown in Figs. 4 and 5.

The movable wall 232 is thus assembled, via a hinge 234, on the fixed wall 212 and in its rear part. A tab 236 is provided on the back of this wall and on which is fixed an articulation of the hydraulic cylinder 250 while the other articulation of this jack is fixed on a return of the casing of the fixed part 210. This movable wall 232 reinforces the efficiency of the fixed wall 212 to the extent that its orientation relative to the fixed wall 212 is related to the position of the arms 151,152 relative to the bucket 110. The movable wall 232 can thus channel the product particles extracted by ricochet by the hedgehog 160 inside the bucket 110, and preferably in its rear part, whatever the position of the arms 151,152 of the collecting device 150, the movable wall 232 is advantageously constituted by a flat plate for directing with precision the product inside the bucket 110.

To move the movable wall 232, a hydraulic actuator 240 is driven by one of the arms 151, 152. The movement of this actuator 240 feeds the hydraulic cylinder 250.

This actuator 240 is preferably constituted by a hydraulic jack of the double-acting type. The hydraulic cylinders 240 and 250 of the double-acting type are preferably identical cylinders. The hydraulic actuator 240 is here articulately mounted between, on the one hand, a support 155 or 156 and, on the other hand, on a first branches 151a, 152a of one of the arms 151 or 152.

The connection ports of the actuator 240 are connected via conduits 242 to those of the hydraulic cylinder 250 so that the movable wall 232 can be made movable between a position where it is disposed substantially in the same plane as the fixed wall 212 in the low position of the collecting device 150 visible in FIG. 5, and a position where it is inclined with respect to the fixed wall 212 in the high position of the collection device 150 visible in FIG. 4 and in which a plane P tangent to said movable wall 232 penetrates inside the bucket 110. More specifically, the downstream chamber of the actuator 240 is connected to the downstream chamber of the hydraulic cylinder 250 and the upstream chamber of the Actuator 240 is connected to the upstream chamber of hydraulic cylinder 250.

Thus, whatever the position of the hedgehog 160 of the collecting device 150 between its two remarkable positions, the product extracted from the silo and then centrifuged by the hedgehog 160 is sent entirely into the bucket 110.

The operation of the bucket 100 for loading and unloading is carried out as follows. The bucket 100 is coupled and hydraulically and / or electrically connected to a self-propelled machine so that it can be maneuvered and controlled by the machine.

As shown in FIG. 6, the bucket 100 is presented against a silo S with its collecting device 150 placed in the up position and the rotary drive of the hedgehog 160 is controlled, then the arms 151 and 152 are lowered in the direction of the arrow D so that the hedgehog 160 nibbles a thickness of the wall of the silo S.

In FIG. 7, and during the descent of the arms 151, 152 under the effect of the operating actuators 180, the hydraulic actuator 240 is operated mechanically. It drives, by hydraulic circulation through the pipes 242, the hydraulic cylinder 250 which then maneuvers the movable wall 232 so that the product particles extracted by the hedgehog 160 and striking said movable wall and whose trajectories are indicated by lines T are ejected inside the bucket 110, in its rear part. The product particles striking the fixed wall 212 fall directly into the bucket 110 or strike the movable wall 232 which returns them inside the bucket 110.

In FIG. 8, when the hedgehog 160 reaches the lower position, the movable wall 232 is disposed approximately in the extension of the fixed wall 212. These two walls 232 and 212 then together return the product particles in the bucket 110.

The loading and unloading bucket of the invention allows rapid filling of its bucket.

The positioning of the movable wall of the baffle provides a great efficiency during the filling of the bucket since the entire product extracted by the hedgehog is returned to the bucket.

The positioning of the movable wall of the deflector is automatic and thus requires no intervention on the part of the operator.

The rear offset of the arm attachment joints reduces the angle of maneuver between the two extreme positions of the hedgehog for the same stroke. In use, this results in less digging of the wall of the silo during the work of the bucket. The upper part of the silo no longer collapses and the bucket can be filled more quickly. In practice, you can fill the bucket in a single past.

Claims (9)

1. bucket (100) for loading and unloading intended to be coupled to a lifting arm (B) of a self-propelled machine (M), the bucket (100) comprising a bucket (110), a hedgehog (160) mounted in an articulated manner on the bucket (110) by means of arms (151, 152) against an operating means (180) for extracting from the product stored in a silo (S), a deflector (200) arranged near the hedgehog (160) to return the product extracted by the hedgehog (160) to the bucket (110), the deflector (200) comprising a movable wall (232), the relative movement of the movable wall (232) being enslaved to that of the arms (151, 152), characterized in that the bucket (100) is provided with an actuator: hydraulic (240) capable of being operated by the movement of one of the arms (151, 152) for supplying a hydraulic cylinder (250) arranged so as to be able to modify the orientation of the movable wall (232), 2. Bucket (100) according to claim 1, characterized in that the hydraulic actuator (240) and the hydraulic cylinder (250) are identical hydraulic cylinders of double-acting type. 3. Bucket (100) according to claim 1 or 2, characterized in that the arms (151,152) are fixed on the bucket (110) by means of joints (153,154) held rearward of the bucket (110) by respectively two supports (155, 156). 4. Bucket (100) according to claim 3, characterized in that the bucket (110) comprises side flanks (114, 115), each support (155, 156) consisting of a flange fixed against a lateral flank (114). , 115) having a protruding portion, such that each hinge (153, 154) can be mounted between the projecting portion of the lateral flank (114, 115) and the flange (115, 156) corresponding thereto. 5. Bucket (100) according to any one of the preceding claims, characterized in that the deflector (200) is provided with a fixed wall (212). 6. Bucket (100) according to claim 5, characterized in that the fixed wall (212) comprises a flat wall fixed on a cross member (157) joining the arms (151, 152) facing towards the bucket (110) and extending towards the hedgehog (160), the front portion of the fixed wall (212) extending below a plane perpendicular to said wall and which is secant at Hedgehog Tax (160), the front portion of the fixed wall (212) having a curved zone turned towards the hedgehog (160). 7. Bucket (100) according to claim 6, characterized in that the movable wall (232) is fixed by a hinge (234) on the rear portion of the fixed wall (212). 8. bucket (100) according to any one of claims 5 to 7, characterized in that a lug (236) is provided on the back of the movable wall (232) and on which is fixed an articulation of the hydraulic cylinder (250 ), the other articulation of said cylinder being fixed on a return provided on the rear part of the fixed wall (212). 9. Bucket (100) according to claim 4, characterized in that the hydraulic actuator (240) is mounted in an articulated manner, on the one hand, between a support (155, 156) and, on the other hand, on a first branches (151a, 152a) of one of the arms (151, 152).