DK155812B

DK155812B - TRUCK WITH GRINDING DEVICE

Info

Publication number: DK155812B
Application number: DK271084A
Authority: DK
Inventors: Wilhelm Silber
Original assignee: Kloeckner Humboldt Deutz Ag
Priority date: 1983-06-27
Filing date: 1984-06-01
Publication date: 1989-05-22
Also published as: FR2548867B1; JPS6230722B2; IT8421294A1; DE3323116A1; DK155812C; FR2548867A1; CH664668A5; DK271084A; DK271084D0; IT8421294A0; GB2144030B; DE3323116C2; NL8401930A; GB8416330D0; GB2144030A; IT1176283B; BE900004A; JPS609419A

Description

!. DK 155812B!. DK 155812B

Opfindelsen vedrører en læssevogn med egenskaber som angivet i indledningen til hovedkravet.The invention relates to a loading trailer with characteristics as set forth in the preamble to the main claim.

55

Ved en læssevogn, som er forsynet med en snitteindretning i transportkanalen, er knivenes skær udsat for en vedvarende belastning af godset, der skal skæres, og slides med tidens løb mere eller mindre hurtigt alt efter arten 10 af foderet, skærehastigheden, skærebredden eller på grund af fremmedlegemer i det høstede gods. Snitteknivene er derfor hidtil blevet taget ud enkeltvis til slibning, som f.eks. ved udførelsen ifølge DE offentliggørelsesskrift nr. 19.16.046, og efter slibning sat ind igen.In a loading trolley fitted with a cutting device in the conveying channel, the blades of the blades are subjected to a sustained load of the goods to be cut, and wear out more or less rapidly depending on the type 10 of the feed, cutting speed, cutting width or due of foreign matter in the harvested goods. Therefore, the cutting knives have so far been removed individually for grinding, such as e.g. in the execution according to DE Publication No. 19.16.046, and after grinding inserted again.

1515

Dette er dog meget tidsrøvende og omstændeligt, da de de-monterede knive i reglen spændes op i en skruestik, og der slibes med en slibemaskine i hånden. Ved efterslibning i hånden slibes skæret endvidere meget uregelmæssigt, hvad 20 der under driften bevirker en endnu hurtigere nedslidning.However, this is very time-consuming and cumbersome, as the disassembled blades are usually clamped in a vice and a grinding machine is sanded by hand. In addition, by hand grinding, the cutter is very irregularly sanded, which causes an even faster wear during operation.

En nøjagtig slibning er ganske vist mulig ved anvendelse af en speciel slibemaskine svarende til udførelsen ifølge DE brugsmønster nr. 81.24.332, men der kan heller ikke 25 herved gives afkald på den tidsrøvende ud- og indmontering af snitteknivene. En sådan speciel slibemaskine er desuden meget dyr og uøkonomisk ved anvendelse kun til slibning af snitteknivene.Accurate grinding is possible using a special grinding machine similar to the embodiment according to DE usage pattern No. 81.24.332, but the time-consuming removal and installation of the cutting blades cannot be waived. Furthermore, such a special grinder is very expensive and uneconomical when used only for grinding the cutters.

30 I DE offentliggørelseskrift nr. 30.28.306 er der foreslået en indretning, hvorved knivrækken til efterslibning svinges ned i en nederste stilling uden for transportkanalen. Knivene skal herved ganske vist ikke afmonteres til efterslibning, men denne slibeprocess kræver stor dygtighed 35 og forhøjet kraftanstrengelse af betjeningspersonen. Betjeningspersonen skal derved håndtere en slibeindretning, i reglen en vinkelsliber, i det indsnævrede rum mellem den30 In DE Publication No. 30,288,306, a device is proposed whereby the knife rows for abrasive are pivoted down to a lower position outside the transport channel. Although the blades do not need to be removed for grinding, this grinding process requires great skill and increased effort by the operator. The operator must thereby handle a grinding device, usually an angle grinder, in the narrowed space between the

2 DK 155812 B2 DK 155812 B

nedklappede knivrække og undersiden af læsserummets transportørs bund. Da den sideværts afstand mellem knivene er forholdsvis lille i indmonteret tilstand, og på grund af de dårlige muligheder for at se og den vanskelige styring 5 af slibeskiven ved de enkelte knives skærekanter, er det ikke muligt for betjeningspersonen at gennemføre en nøjagtig og enkel slibning.folded knife rows and the underside of the bottom of the loading compartment carrier. Since the lateral distance between the blades is relatively small in the mounted state, and because of the poor viewing possibilities and the difficult control 5 of the grinding wheel at the cutting edges of the individual blades, it is not possible for the operator to carry out an accurate and simple grinding.

I praksis, især ved stenet jord, kan det forekomme, at 10 knivene skal efterslibes flere gange under arbejdet for at sikre et godt snittearbejde, og holde effektforbruget nede. Derved kan man ikke forlange, at betjeningspersonen skal arbejde flere gange i et snævert rum med en forholdsvis tung slibemaskine.In practice, especially on rocky soils, the 10 blades may need to be sharpened several times during work to ensure good cutting work and keep power consumption down. In this way, the operator cannot be required to work several times in a narrow room with a relatively heavy grinder.

1515

Til grund for opfindelsen ligger derfor den opgave at skabe en slibeindretning til en snitteindretning i en læssevogn af den nævnte slags, som uden større kraftopbud muliggør en enkel og nøjagtig slibning af snitteknivene.The object of the invention therefore lies in the object of creating a grinding device for a chopping device in a loading trolley of the said kind, which without major power supply enables a simple and accurate grinding of the chopping knives.

2020

Denne opgave løses ifølge opfindelsen derved, at der i transportkanalens område fast eller demonterbart er an- ' bragt en slibeindretning med en på tværs af transportretningen forskydelig slibeenhed, som er styret, så den kan 25 svinges eller forskydes i de enkelte snitteknives lodrette plan.This task is solved according to the invention in that in the area of the conveyor channel a grinding device is provided with a grinding device which can be swiveled transversely of the transport direction, which is controlled so that it can be pivoted or displaced in the vertical plane of the individual cutting blades.

Derved muliggøres en enkel og nøjagtig slibning af snitteknivene. Betjeningspersonen kan ved svingning af slibe-30 enheden foretage en nøjagtig slibning uden større kraftanvendelse.This allows a simple and accurate grinding of the cutter blades. The operator can swivel the grinding unit accurately grinding without much force.

Ved en foretrukken udførelsesform af opfindelsen er det forudset, at nederste bunddæk kan klappes ned og svinges 35 ud i nederste stilling, som samtidig udgør slibestillingen for slibeindretningen.In a preferred embodiment of the invention, it is contemplated that the bottom floor tire can be folded down and swiveled 35 out to the lower position, which simultaneously constitutes the abrasive position of the abrasive device.

33

DK 155812 BDK 155812 B

Derved bliver tilgængeligheden til slibning forhøjet og forbedret, ligesom også en simplere anbringelse og ud-svingning af slibeindretningen bliver muliggjort.Thereby, the accessibility of grinding is increased and improved, as is also possible a simpler positioning and swinging of the grinding device.

5 Ifølge et yderligere kendetegn ved opfindelsen er slibe-indretningen lejret demonterbar på et tværrør mellem transportkanalens sidebegrænsninger, og slibeenheden er anord-net svingbar og sideværts forskydelig på tværrøret. Ved hjælp af en fastlåsningsindretning er det muligt at hindre 10 den sideværts forskydelighed.According to a further feature of the invention, the grinding device is mounted removable on a transverse tube between the lateral limitations of the conveying channel and the grinding unit is pivotally arranged and laterally displaceable on the transverse tube. By means of a locking device it is possible to prevent the lateral displacement.

Det er særligt fordelagtigt at udforme slibeindretningen, så snitteknivene udviser en konkav form og at lade krumningscentret for de konkave skærekanter ved udsvunget 15 bundvæg falde sammen med tværrørets midterakske.It is particularly advantageous to design the grinding device so that the cutter knives have a concave shape and to allow the center of curvature of the concave cutting edges at the flared bottom wall to coincide with the central axis of the cross-tube.

For at der kun skal være en svingbevægelse af slibeenheden nødvendig under slibningen, foreslås det, at slibeskiven indrettes skråt i forhold til knivens skærekant, hvorved 20 slibeskiven drives af en drivmotor, der er forbundet gennem en svingforbindelse til det på tværrøret forskydelige leje.In order that only a swinging movement of the grinding unit is necessary during grinding, it is proposed that the grinding wheel be inclined with respect to the cutting edge of the knife, whereby the grinding wheel is driven by a drive motor connected through a swinging connection to the bearing displaceable on the transverse tube.

Yderligere foreslås, at forsyne slibeenheden med et hånd-25 tag eller med en parallellt med tværrøret forløbende indstillingsstang.Further, it is proposed to provide the abrasive unit with a handle or with an adjusting bar extending parallel to the cross tube.

Anbringelsen af en indstillingsstang muliggør slibning fra en side uden at betjeningspersonen behøver at begive sig 30 under læssevognen.The positioning of an adjusting rod enables grinding from one side without the operator having to go under the loader.

Da der på næsten ethvert mindre værksted findes en vinkelslibemaskine, foreslås det af besparelsesgrunde, som slibeenhed at anvende en vinkelslibemaskine, der kan befæstes 35 til svingforbindelsen.Since there is an angular grinding machine in almost every small workshop, it is proposed, for savings reasons, as an abrasive unit to use an angular grinder which can be attached to the pivot joint.

Anvendelse af en hydraulikmotor eller en transmission medUse of a hydraulic motor or transmission with

4 DK 155812 B4 DK 155812 B

en bøjelig aksel muliggør også efterslibning i marken, hvor kun traktoren står til rådighed som energikilde. U-nødvendig vejkørsel undgås derved. Ved flere efter hinan- den og forsat for hinanden liggende knivrækker foreslås 5 det at forudse yderligere monteringsmuligheder i tran sportkanalens sidebegrænsninger til ommontering af slibeindretningen. Derved opnås, at der foreligger de samme slibebetingelser for den yderligere knivrække, som for den første knivrække. Ifølge et yderligere kendetegn ved op-10 findelsen er snitteknivene udrustet med en overbelast- i i ningssikring og kan svinges ud enkeltvis eller samlede.a flexible shaft also allows for back-grinding in the field, where only the tractor is available as an energy source. This avoids unnecessary road traffic. In the case of several consecutive rows of cut blades 5, it is proposed to foresee further mounting possibilities in the lateral restraints of the tran sport channel for reassembly of the grinding device. This results in the same grinding conditions for the additional blade row as for the first blade row. According to a further feature of the invention, the cutting blades are equipped with an overload protection and can be swung out individually or in combination.

Til udsvingning af snitteknivene i slibestilling foreslås det at anbringe svingindretningen i den bageste del af 15 bundvæggen, hvorhos svingvejen begrænses nedadtil. Ved håndbetjening bliver den nødvendige svingkraft derved holdt mindre.In order to swing the cutter knives in the abrasive position, it is proposed to place the pivot device in the rear of the bottom wall, the pivot path being restricted downwards. By hand operation, the required swivel force is thereby kept less.

Et udførelseseksempel på opfindelsen bliver i det følgende 20 nærmere forklaret ved hjælp af tegningen, der viser:An exemplary embodiment of the invention will now be described in more detail with reference to the accompanying drawings, in which:

Fig. 1 en læssevogn med snitteindretning ifølge opfindelsen vist fra siden, 25 Fig. 2 en forstørret fremstilling af snitteindret- ningen ifølge fig. 1 med slibeindretning,FIG. 1 is a side view of a loading trailer with a cutting device according to the invention, FIG. 2 is an enlarged view of the cutting device of FIG. 1 with abrasive device,

Fig. 3 fig. 2 set fra oven, og 30 Fig. 4 fig. 2 set fra oven med en vinkelslibemaskine og en indstillingsstang.FIG. 3 FIG. 2 from above, and FIG. 4 FIG. 2 from above with an angle grinder and an adjusting rod.

Fig. 1 viser forreste del af en læssevogn med en optageindretning. Optageindretningen er sammensat af en optage-35 mekanisme og en efterfølgende rotationstransportør 4, som er forsynet med transporttænder 5. Transporttænderne 5 virker sammen med i rækker anordnede snitteknive 7 iFIG. 1 shows the front part of a loading trolley with a recording device. The receiving device is comprised of a receiving mechanism and a subsequent rotary conveyor 4 provided with transport teeth 5. The transport teeth 5 cooperate with rows of cutters 7 arranged in rows.

5 DK 155812BDK 155812B

transportkanalen 6.the transport channel 6.

Som det ses i fig. 2, er snitteknivene 7 og 8 sikret med en overbelastningssikring 9. Transportkanalen dannes af en 5 med gennemgangsåbninger forsynet overvæg 10, en lukket bundvæg 11, såvel som af to sidevægge 12, 13. Transportkanalen udmunder i et lastrum 14, som kun er vist delvis. Læssevognen er forsynet med en ikke vist undervogn og en aflæsningsanordning. Til den ikke viste aflæsnings-10 anordning føres godset af en transportbund 15. Læssevognen trækkes gennem en trækstang 16.As seen in FIG. 2, the cutter knives 7 and 8 are secured by an overload protection 9. The conveying channel is formed by a 5 with passage openings 10, a closed bottom wall 11, as well as by two side walls 12, 13. The conveyor channel opens into a cargo space 14, which is only partially shown. . The trolley is equipped with a not shown undercarriage and a reading device. For the unloading device 10 not shown, the goods are carried by a conveying base 15. The truck is pulled through a drawbar 16.

Som det ses i fig. 1 og 2 er bundvæggen 11 udformet svingbar nedad om en fast svingakse 17.As seen in FIG. 1 and 2, the bottom wall 11 is formed pivotally downward about a fixed pivot axis 17.

1515

Udsvingningsvejen begrænses af en indstillingsindretning 18. Ved udsvingning af bunden 11 følger samtidig snitteknivene 7, 8. Yderligere kan snitteknivene 7, 8 omkring akserne 19 og 20 svinges ud af transportkanalen 6, uden at 20 det har indflydelse på bundvæggens 11 stilling. Snitteknivene 7 er derfor lejret svingbart på en knivholder 21 og kan fikseres ved hjælp af en fastlåsningsindretning 22.The oscillation path is limited by an adjusting device 18. When oscillating the bottom 11, at the same time, the cutter knives 7, 8. Further, the cutter knives 7, 8 around the axes 19 and 20 can be swung out of the transport channel 6 without affecting the position of the bottom wall 11. The cutter knives 7 are therefore pivotally mounted on a knife holder 21 and can be fixed by means of a locking device 22.

Som det fremgår af fig. 2 danner bundvæggens 11 ned-25 klappede stilling samtidig slibestilling for snitteknivene 7, 8.As shown in FIG. 2 forms the downwardly-folded position of the bottom wall 11 at the same time grinding position for the cutting blades 7, 8.

Til slibning af snitteknivene 7, 8 er forudset en i sidevæggene 12, 13 ved hjælp af et tværrør 24 lejret slibe-30 indretning. Tværrøret er fastlåst i dets længderetning ved hjælp af en sikring 30. På tværrøret 24 er anbragt et svingleje 25 forskydeligt i rørets længderetning, hvilket svingleje ved hjælp af en svingforbindelse 26 bærer en motor 27. Motoren 27 driver en slibeskive 28. Til svingning 35 af slibeindretningen 23 er motoren 27 forsynet med et håndtag 29. Motoren 27 kan være udformet som elektro- eller hydraulikmotor. Tilslutningsledningerne 27a er kun an-For grinding the cutting blades 7, 8, a grinding device stored in the side walls 12, 13 is provided by means of a transverse tube 24. The transverse tube is locked in its longitudinal direction by means of a fuse 30. On the transverse tube 24 a pivot bearing 25 is displaceable in the longitudinal direction of the tube, which pivot bearing by means of a pivot connection 26 carries a motor 27. The motor 27 drives a grinding disc 28. For pivoting 35 of the grinding device 23, the motor 27 is provided with a handle 29. The motor 27 may be designed as an electric or hydraulic motor. The connection lines 27a are only used.

6 DK 155812B6 DK 155812B

tydet. Af fig. 3 ses at svingforbindelsen 26 med motoren 27 og slibeskiven 28 er skråtstillet i forhold til snit-teknivene 7, 8. Dette er nødvendigt for at knivenes skærekanter bliver slebet tilsvarende skråt. Hertil kan motoren 5 27 også overføres i forskellige skråstillinger og fastlå ses i forhold til svingforbindelsen 26.deciphered. In FIG. 3 it is seen that the pivot connection 26 with the motor 27 and the grinding wheel 28 is inclined with respect to the cutting techniques 7, 8. This is necessary for the cutting edges of the blades to be sharpened correspondingly. For this purpose, the motor 5 27 can also be transmitted in various inclined positions and can be seen in relation to the pivot connection 26.

Til sideværts fiksering af svingforbindelsen kan der yderligere være forudset en - her ikke vist - fastlåsnings-10 anordning.For lateral fixation of the pivot connection, a locking device may be provided - not shown here.

I fig. 4 er vist en yderligere udførelsesform. Her er en selvstændig udnyttelig slibeindretning, f.eks. en vinkelslibemaskine 31, befæstet til den skråtstillede sving-15 forbindelse 26. Til sideværts forskydning er svingforbindelsen 26 forsynet met en indstillingsstang 32, hvormed forskydningen kan foretages fra siden af læssevognen.In FIG. 4 is a further embodiment. Here is a self-utilizable grinding device, e.g. an angular grinder 31, attached to the inclined pivot joint 26. For lateral displacement, the pivot joint 26 is provided with an adjusting rod 32 with which the displacement can be made from the side of the loader.

Som det fremgår af fig. 1 og 2, findes der til tværrøret 2 20 to i forskellig højde parvis anordnet optagelsesboringer 33a-b og 33c-d. Optagelsesboringerne 33c-d bruges ved slibning af de nederste snitteknive 7.As shown in FIG. 1 and 2, two transverse ports 33a-b and 33c-d are arranged in different heights at different heights. The recess bores 33c-d are used for grinding the lower cutting blades 7.

Slibeprocessen bliver udført som følger, 25The grinding process is carried out as follows, 25

Efter standsning af optageindretningen 2 svinges bundvæggen 11 ved hjælp af indstillingsindretningen 18 nedad om svingaksen 17 til en stilling, i hvilken indstillingsindretningen 18 begrænser yderligere udsving. Indstil-30 lingsindretningen 18 er dannet af en indstillingsstang, der angriber ved et bagudliggende holdepunkt på bundvæggen 11. Den fuldstændige udformning af indstillingsindretningen er for overskuelighedens skyld ikke vist. Indstillingen kan foretages for hånden ved hjælp af knæled eller 35 med hydrauliske eller elektriske hjælpemidler.After stopping the recording device 2, the bottom wall 11 is pivoted downwardly by the adjusting device 18 about the pivot axis 17 to a position in which the adjusting device 18 limits further fluctuations. The adjusting device 18 is formed by an adjusting rod which attacks at a rearward holding point on the bottom wall 11. The complete design of the adjusting device is not shown for the sake of clarity. The adjustment can be done by hand using knee joints or 35 with hydraulic or electrical aids.

Efter at bundvæggen 11 er bragt til dens udsvungne stil-After the bottom wall 11 is brought to its oscillating style,

7 DK 155 812 B7 DK 155 812 B

ling, bliver, når den øverste knivrække med slibeknivene 8 skal slibes, den underste knivrække svunget ud nedadtil (se fig. 2 fuldt optrukket stilling). Derefter føres slibeindretningen 23 sammen med tværrøret 24 først skråt ind 5 i boringen 33a, rettet ud og stukket ind i boringen 33b, og der sikret med sikringen 30 mod aksial forskydning.When the upper knife row with the abrasive blades 8 is to be abraded, the lower knife row is swung outwards downwards (see Fig. 2 fully drawn position). Thereafter, the grinding device 23 together with the transverse pipe 24 is first inclined 5 into the bore 33a, straightened out and inserted into the bore 33b, and secured with the fuse 30 against axial displacement.

Slibeindretningen 23 er nu færdig til brug. Ved hjælp af et håndtag 29 føres den indkoblede slibeenhed langs kniv-10 skærene, hvorved knivene slibes. Efter slibning af en kniv svinges slibeskiven 28 opad og ved hjælp af svinglejet 25 forskudt sideværts til næste kniv.The grinding device 23 is now ready for use. By means of a handle 29, the engaged grinding unit is guided along the cutters 10, thereby grinding the blades. After grinding a knife, the grinding wheel 28 is pivoted upwards and by means of the pivot bearing 25 is displaced laterally to the next knife.

Til slibning af den nederste knivrække svinges denne række 15 igen op og slibeindretningen 23 med tværrøret 24 stikkes i optagelsesboringerne 33c og 33d og sikres.For grinding the lower knife row, this row 15 is swung up again and the grinding device 23 with the cross tube 24 is inserted into the receiving bores 33c and 33d and secured.

Ved ommonteringen bliver slibeenhedens svingbevægelse tilpasset til den konkave form på snitteknivenes skær.During reassembly, the swivel movement of the grinding unit is adapted to the concave shape of the cutting blades.

2020

For at slibeskiven ikke skal blive ensidigt slidt, er svingforbindelsen udformet drejeligt om sig selv. Dreje-bevægelsen kan fikseres med en fastspændingsskrue 34.In order for the grinding wheel not to be unilaterally worn, the pivot joint is designed to be rotatable about itself. The turning movement can be fixed with a clamping screw 34.

25 I fig. 4 er vist en yderligere udførelsesform, hvorved en vinkelslibemaskine 31 er befæstet til svingforbindelsen 26. Også her er det muligt at udforme svingforbindelsen 26 drejeligt om sig selv, for at hindre en ensidig nedslidning af slibeskiven.In FIG. 4, there is shown a further embodiment whereby an angular grinding machine 31 is attached to the pivot joint 26. Here, too, it is possible to design the pivot joint 26 pivotally about itself to prevent unilateral wear of the grinding wheel.

30 Håndtaget er udført i form af en indstillingsstang 32, som muliggør betjening fra siden af læssevognen.30 The handle is in the form of an adjusting rod 32, which allows operation from the side of the loader.

For at sætte optageindretningen i gang igen fjernes blot 35 sikringen 30, slibeindretningen 23 trækkes ud, og bundvæggen 11 klappes op.To restart the recording device, only the fuse 30 is removed, the abrasive device 23 is pulled out and the bottom wall 11 is folded up.

Claims

1. A stalk crop harvesting trolley having a conveyor channel filled on the inlet side and on the outlet side 5 opens into a loading compartment on the loading trolley and with a number of conveyor teeth projecting into the conveyor channel through an overhead wall towards a bottom wall, and below the operation cooperates with cutter knives projecting through the bottom wall into the transport channel, whereby the cutter knife rows can individually be swung out of the transport channel, characterized in that a grinding device (23) is fixed or removable in the area of the transport channel (6). sliding unit, slidable across the conveying direction, which is controlled so that it can be swiveled or shifted in the vertical plane of the individual cutting blades.

Load trolley according to claim 1, characterized in that the bottom wall (11) with the cut-in knives (7, 8) inwardly in the transport channel (6) is limited pivotally downwards 20 about an axis (11) arranged in the front part of the bottom wall (11). 17), wherein the lower oscillation position simultaneously forms the grinding position of the blades for the grinding device (23).

Load carriage according to claim 1 or 2, characterized in that the grinding device (23) is formed by a transverse bearing (24) projecting and removable in cross-section through the transport channel (6) and a grinding unit which is pivotally and laterally displaceable. on the cross tube. 30

Load truck according to claim 3, characterized in that the grinding unit can be clamped for lateral displacement of the transverse tube (24). A loading cart according to claims 3 and 4, characterized in that the cutting edges of the cutting blades (7, 8) exhibit a concave shape and that the curvature centers of the concave cuts

9 DK 155812 B edges at flared bottom wall (11) coincide with the center axis of the grinding device (23) transverse tube (24).

A trolley according to one of claims 1 to 5, characterized in that the grinding unit comprises a drive motor (27) capable of operating a grinding wheel (28) which is arranged on the cutting edges of the blades (7, 8) and of a pivot connection (26) connecting the drive motor (27) to a bearing (25) slidable on the transverse tube (24). 10

A loading cart according to claim 6, characterized in that the grinding unit is provided with a handle (29).

Loading cart according to claim 6, characterized in that the abrasive unit is provided with an adjustment rod (32) approximately parallel to the transverse tube.

Load trolley according to claim 6, characterized in that the drive motor (27) is an electric motor. 20

Loading cart according to one of claims 1 to 5, characterized in that the grinding unit is constituted by an angular grinding machine (31) attached to a pivot joint (26), the pivot joint (26) being connected to that of the transverse pipe (24). ) sliding bearings (25).

A trolley according to claim 6, characterized in that the drive motor (27) is a hydraulic motor. 12. A trolley according to one of claims 1 to 5, characterized in that the grinding unit consists of a gear whose output shaft has a grinding wheel (28) and whose input is provided with a flexible shaft, and of a pivot connection (26), connecting the gear housing to the sliding bearing (25) of the transverse tube (24).

The cart according to any one of the preceding claims 3 to 12, {

DK 155812B, characterized in that, for the grinding device (23), holes or pockets (33a, b, c, d) are provided in the lateral restrictions (12, 13) of the conveyor channel (6), corresponding to the number of knife rows. 5

A trolley according to one of the preceding claims, characterized in that the cutting blades (7, 8) are provided with an overload protection (9) and can be swung out of the conveying channel (6) individually or collectively.

A loading cart according to claim 2, characterized in that an adjusting device (18) is arranged in the rear region of the bottom wall (11), which simultaneously limits the downward movement of the bottom wall. 15

Loading cart according to claim 6, characterized in that the swing connection (26) is formed as a split plug connection, which enables a rotation of the swing connection and the attached motor and the abrasive disk about the longitudinal axis of the swing link ice, which plug can be fixed in a adjustable stable position by means of a clamping device.