DE8308531U1 - QUICK-CHANGE DEVICE FOR WORKING EQUIPMENT - Google Patents

Description

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O&K Orenstein & Koppel Aktiengesellschaft

Berlin

PAT 2o56 / 57

Quick change device for tools

The invention relates to a quick change device for implements on backhoe equipment of an excavator.

The object of the invention is in the backhoe equipment of an excavator make a low-effort, in particular quick change of tools to be able to. Furthermore, it should be possible to use the quick-change device not only without changes to grow on the backhoe, but it should also standard tools, e.g. B. digging spoons, can be used for both modes of operation with only small additional attachments, firmly on the handle or via the quick-change device, can be grown.

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A solution to the above-described problem in a
Device of the type described at the outset is

see that perpendicular to a central axis there are three rigid '$

fastened, mutually parallel and, based on a s center line of symmetry, double arranged tabs, an ij.

inner flap, a middle flap, and an outer flap, ^

h, are provided, which continue to be three _f an inner and |

two outer pairs of plates can be connected by bolts, $

and that the middle tab of each side of symmetry has one end; |

runs out into a two-pronged fork. §

It is the middle pair of tabs on one side |

M of the central axis can be connected by a socket pin and J

on the other side of the central axis by a fixed |

Bolt bush connected. In addition, the middle 3

Pair of flaps against each outer pair of flaps by a ■ |

fixed interconnection stiffened. %

On the central axis is between the inner pair of tabs
a mechanically set articulated linkage attached, the
the bolt connection of the outer plate pairs is blocked.

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The advantage of the invention is that little effort, i. H. without the use of many additional parts work equipment changed on the backhoe equipment of an excavator »This is done with mechanical, especially hydraulic drive of the articulated linkage without manual work and can be carried out by the excavator operator himself. Furthermore, the tools can be changed very quickly. Another advantage is that standard implements that are already in use can easily be used for their use can be retrofitted with the help of a quick-change device. There are therefore none in the future two versions of each implement required, one for stationary operation and the other for operation with the aid of a quick coupler is suitable.

~: On the basis of a drawing, a schematic implementation

[| Example of the invention explained.

It shows the

Fig. 1 is an assembly drawing, and it illustrates the

Fig. 2 shows the quick-change device in a sectional view, while the

FIG. 3 shows a side view of FIG. 2.

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The same elements are provided with the same reference symbols in the figures.

FIG. 1 shows the quick-change device already attached to the stick and to the coupling of a backhoe attachment of an excavator, which is remotely controlled by the excavator operator and ready to intervene in a work device, a digging shovel.

Figure 2 illustrates that perpendicular to a central axis 1, three rigidly attached to it, mutually parallel and, in relation to a center line of symmetry, tabs arranged twice, an inner tab 3, a middle tab 4 and an outer flap 5 are provided, which continue to be three, an inner and two outer pairs of flaps can be connected by bolts, and that the middle tab 4 of the symmetry side runs out at one end into a two-pronged fork 6 '. It is the middle pair of tabs on one side of the central axis 1 can be connected by a socket pin 7, and the pair of tabs is connected on the other side of the central axis by a fixed pin bushing 8. Furthermore, this is middle pair of flaps stiffened against each outer pair of flaps by a fixed intermediate connection 9, 9a. The figure illustrates Furthermore, a mechanically placed steering linkage on the central axis 1 between the inner pair of tabs

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is attached, the bolt connection 11 and 11a of the outer pairs of tabs controls. As illustrated in the exemplary embodiment, this can be done by a hydraulic actuator 12 take place. With reference to FIG. 1 it can be seen that the bolt connection 11, 11a of each outer pair of link plates in a bolt eye 13 of a standard digging shovel 14 and the fork 6 of each middle bracket in the, The bridge bolts 15 connecting the side walls of a bracket 16 additionally welded to the standard digging shovel intervention.

FIG. 3 shows the side view of a quick-change device according to Figure 2, in which clearly the grave shovel 14, the central axis 1, the socket pin 7 and the pin socket 8 as well as the pin connection 11a and the intermediate connection 9a are recognizable in their position to each other.

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• t ·· III III * * ι ι ··· «· ι · ■ ι ι ■ * ··· »■■ III I - 8th - Designation of the reference numbers 1 Central axis ψ- 2 Center line of symmetry S 3 inner tab Ι ⁴ middle flap I ⁵ outer flap j 6 fork j 7 Locking pin I ⁸ Pin bushing i 9 Interconnection I 9a i ^1o Joint chants I. Bolt connection ρ na
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Hydraulic actuator I 13 Bclzenöse f- 14 Grave shovel '· ■ 15 Bridge studs ^ 16
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Claims (5)

I ■> Il 1111 Il ItII I ■ · ■ · I I Il 1 III 111 Il 1 I · I · ■ I III I I I · I I IB I I Il I 111 ·· · ■ Il Il Il O&K Orenstein & Koppel Aktiengesellschaft Berlin PAT 2o56 / 57 j>, 1. Quick change device for tools on the p Backhoe equipment of an excavator, thus identifiable ■ f. shows that perpendicular to a central axis (1) ? · Three rigidly attached to it, parallel to each other ; ■; rnd, based on a center line of symmetry (2), v: double tabs, one inner tab (3), ; ■ a middle flap (4) and an outer flap (5), V are provided, which continue to be three, one inner ΐ and two outer pairs of brackets can be connected by bolts and that the middle tab (4) of each symmetry ^ the try side runs out into a two-pronged fork at one end. 2. Device according to claim 1, characterized in that λ; that the middle pair of tabs on one side of the Central axis (1) can be connected by a socket pin (7) and on the other side of the central axis (1) is connected by a fixed pin bushing (8). Il 1111 11 1111 111 ·· ■■ ti II 11 3. Apparatus according to claim 2, characterized in that the middle pair of tabs against each outer The pair of tabs is stiffened by a fixed intermediate connection (9, 9a). 4. Apparatus according to claim 1, characterized in that on the central axis (1) between the inner A mechanically set articulated linkage (1o) is attached to the pair of tabs, which is the bolt connection (11, 11a) of the outer pairs of tabs controls. 5. Apparatus according to claim 4, characterized in that that the bolt connection (11, 11a) each outer Pair of tabs in a bolt eye (13) of a standard digging shovel (14) and the fork (6) each middle bracket in the bridge bolts (15) connecting the side walls of one of the standard Grab the digging shovel (14) in addition to the welded-on Bokkes (16).