Adapters for quick-change systems and quick-change systems equipped with such adapters

Abstract

To provide an adapter for a quick change system for changing an attachment on a construction machine.SOLUTION: An adapter includes two parallel pin-like coupling elements (5, 6) which connect an adapter (1) to a quick coupler and are arranged between parallel side parts (4) at a specified interval therefrom, and a coupling element support (16) which is releasably fastened to the one coupling element (6) so as to fasten the coupling elements, wherein the coupling element support (16) secures safety to torsion through a releasable shape adaptation connection part, so as to enable simple fastening, and is directly connected to the pin-like coupling element (6).SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an adapter for a quick change system as described in the preamble of claim 1. The present invention also relates to a quick change system having such an adapter.

Background Art

[0002] Such quick change systems are used for the easy and convenient replacement of various attachments of construction machinery. For example, a return bucket, gripper, claw, compactor, magnet, hydraulic hammer, or other attachments can be connected to or disconnected from the boom of an excavator with a high level of safety from the cab and can be done in a few seconds. These generally include an adapter on the attachment side and a quick coupler arranged on the construction machinery, and the quick coupler has a first receptacle for holding a first coupling element arranged on the adapter on one side and at least one locking element movable between a release position and a lock position for releasable holding of a second coupling element arranged on the adapter on the other side. on the other side. Generally, they include an adapter on the attachment side and a quick coupler arranged on the construction machinery. The quick coupler has a first receptacle for holding a first coupling element arranged on the adapter on one side and a second receptacle having at least one locking element movable between a release position and a lock position for releasable holding of a second coupling element arranged on the adapter on the other side. The quick coupler has a first receptacle for holding a first coupling element arranged on the adapter on one side, and a second receptacle having at least one locking element movable between a release position and a lock position for releasable holding of a second coupling element arranged on the adapter on the other side. for holding a second coupling element arranged on the adapter, on the other side. An adapter for such a quick change system is known from Patent Document 1. It has (no original language) for connecting the adapter to the quick coupler. A coupling element support body for holding the coupling element on the adapter side for coupling with the coupling element on the quick coupler side is fixed to one of two pin-like coupling elements. For this purpose, a connecting piece provided with a receptacle opening for a screw is welded to one of two pin-like coupling elements.

[0003] An adapter for such a quick change system is known from Patent Document 1. This has (no original language) for connecting the adapter to the quick coupler. A coupling element support for holding the coupling element on the adapter side for coupling with the coupling element on the quick coupler side is fixed to one of two pin-like coupling elements. For this purpose, a connecting piece provided with a receptacle opening for a screw is welded to one of two pin-like coupling elements. A coupling element support for holding the coupling element on the adapter side for coupling with the coupling element on the quick coupler side is fixed to one of two pin-like coupling elements. For this purpose, a connecting piece provided with a receptacle opening for a screw is welded to one of two pin-like coupling elements. A connecting piece provided with a receptacle opening for a screw is welded to one of two pin-like coupling elements. The mount of the coupling element support, which has an opening for the coupling element, is mounted These connecting parts can be screwed in by retaining parts welded to them. The fastening of connecting parts to the joint elements and fastening of retaining parts to the mounts are done by welding. Therefore, it incurs significant manufacturing costs. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] German Utility Model Specification No. 202017103198(U1) [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] The object of the present invention is to provide an adapter and such an adapter that enables easy fastening of the coupling element support. The goal is to create a quick-change system with an adapter. [Means for solving the problem]

[0006] This problem involves an adapter having the features of claim 1 and a quick having the features of claim 13. This is resolved by a change system. Advantageous embodiments and advantageous improvements of the present invention. This is described in the dependent claim.

[0007] The coupling element support within the adapter according to the present invention is a releasable shape-fitting (shape-matching, shape-matching) The connection is made safe against twisting by the matching (matching) joint and is directly connected to a pin-like connecting element. They can be connected and releasably fastened to the connecting element by screws or other fastening elements. This makes the joint safe against twisting and easily detachable when needed. The connection between the element and the connecting element support is made without a connecting element that is difficult to fasten to the connecting element. It can be removed. Therefore, if damage occurs to the connecting element support, the alignment work This can be easily replaced without the need for [something]. friction between the connecting element support and the connecting element. A friction fit can thus be achieved using screws, while a shape-matching connection is precise. Ensures safety against misalignment and twisting. Changes or adjustments to the coupling element support. Even in the middle of being assembled, it can be easily disassembled and replaced with a correspondingly modified coupling element support. It is possible.

[0008] The shape-matching connection between the connecting element support and the connecting element is a shape incorporated within the connecting element. Deformation that is particularly advantageous in manufacturing due to the matching contour and the corresponding paired contour on the bonded element support. It can be formed by its shape.

[0009] The shape-fitting contour on the connecting element is advantageously such as having several groove-like structures with different contact surfaces. It can be formed by recesses. Recesses, such as grooves, are inclined to make contact in different ways. It can be incorporated on the outside of a bonding element that has a surface.

[0010] The opposing contour of the connector element support that matches the shape-fitting contour on the connector element is, conveniently, connected. It can be placed on a fork-shaped retaining piece that protrudes from the side of the element support. The retaining piece is mounted on a strip-like mount that has a receptacle for the connecting element. It can be placed. The retaining piece preferably has a strip-like mount. It can be manufactured as a single piece. The opposing contour is advantageously concave, such as a fork shape. The inner surface of the part can be formed by opposing surfaces that are inclined in different ways.

[0011] In order to securely and accurately hold the coupling element provided with the coupling element support in a correct position on the side, the coupling element is preferably secured against torsion and can be fastened to the side. For this purpose, the connection between the coupling element and the side is made, for example, by a form-fitting connection having a special contour on the coupling element and a matching mating contour on at least one side. This can be done.

[0012] In another advantageous embodiment, the coupling element support can be press-fitted onto a pin-shaped coupling element by means of a screw. For example, the screw can pass through a transverse hole in the pin-shaped coupling element and engage with a screw hole on the coupling element support.

[0013] The present invention also relates to a quick-change system having the above-described adapter and a quick coupler that can be connected to the adapter for easily exchanging attachments on a vehicle.

[0014] Further details and advantages of the present invention will become apparent from the following description of the preferred embodiments with reference to the drawings.

Brief Description of the Drawings

[0015] [Figure 1] FIG. shows a quick-change system in a position where the adapter and the quick coupler are separated. [Figure 2] FIG. shows the quick-change system of FIG. 1 in a coupled position. [Figure 3] FIG. is an exploded view of the adapter having a coupling element support. [[ID=(46]] [Figure 4] FIG. shows the adapter of FIG. 3 in a mounted state. [Figure 5] FIG. is a cross-sectional view of the adapter having a coupling element and a coupling element support in a state where it is not yet mounted. [Figure 6] This is a cross-sectional view of an adapter having a coupling element and a coupling element support in an attached state. [Modes for carrying out the invention]

[0016] For simple modifications of attachment 3, which is shown only partially on vehicles, especially construction machinery, A quick-change system consisting of an adapter 1 and a corresponding quick coupler (connector) 2. However, in particular, the separated positions (Figure 1) and the joined positions (Figure 2) are shown in Figures 1 and 2. A return bucket, gripper, jaws, magnet, compactor, hydraulic hammer, or other Mechanical or hydraulic attachments can be changed from the driver's seat using such quick-change systems. This allows for easy and convenient connection to the boom or other attachments of construction vehicles. It can be deactivated.

[0017] The adapter 1, positioned on the attachment 3, has two parallel sides 4 spaced apart from each other. Including a first pin-like connecting element 5 and a second pin arranged at a specified interval between them A coupling element 6, which is shaped like an U, is held for a detachable connection with the quick coupler 2. The two parallel, pin-like connecting elements 5 and 6 correspond to the two sides 4 of the adapter 1. It is inserted into openings 7 and 8 and fixed therein.

[0018] For example, the quick coupler 2, which can be attached to the boom of an excavator, has a first pin-shaped on one side. A forward-opening fork-like or A jaw-like (jaw-shaped) first receptacle (container, receiving part) 9, and on the other side, a second A movable locking element 11, as shown in Figure 2, for receiving and holding a pin-like connecting element 6. It includes a second receptacle 10 that is open downwards and has a downward-facing receptacle. The 10 has a curved contact surface 12 for supporting the second pin-like connecting element 6. ru.

[0019] In the illustrated embodiment, the quick coupler 2 has two on one side for the first coupling element 5 A fork-like or jaw-like receptacle 9, and on the other side, a second connecting element 6 The quick coupler 2 includes a support 13 which includes two receptacles 10. Receiving opening 1 for fastening pins (not shown) for fastening to a joint of a construction vehicle or another construction vehicle 5 is also provided on two parallel sides 14 located on the upper part of the support 13.

[0020] In the illustrated embodiment, the locking element 11, designed as a locking pin, is here a support It is positioned within the two parallel guides of the quick coupler 2, which are designed as guide holes within 13. The locking element has a retracted release position as shown in Figure 1 and an extended locking position as shown in Figure 2. It is hydraulically displaceable between the two positions. In the extended locked position, the second lever opens downwards. The septacle 10 is closed at the bottom by a pin-like locking element 11, The second pin-like connecting element 6 is engaged by the locking element 11, and the adapter 1 is locked It can be tightened onto the ick coupler.

[0021] To connect adapter 1 to quick coupler 2, the entire assembly is placed on the boom of the excavator. First, move the quick coupler 2 to connect to the first pin-like coupling element 5 on the adapter 1. Insert it into the jaw-like receptacle 9 on one side of the quick coupler 2. Then, still retract it The quick coupler 2, which has a locked element 11 in a locked state, has a first pin-like coupling element Pivoting around element 5, the second pin-like coupling element 6 on adapter 1 is quick-cranked So that it comes into contact with the support surface 12 of the downward-facing receptacle 10 on the other side of plastic 2. A pin-like locking element is movably positioned on the support 13 on the quick coupler 2. Since element 11 can be hydraulically extended according to Figure 2, the second on adapter 1 The pin-like coupling element 6 connects to two pin-like locking elements 1 on the quick coupler 2. Engaged by 1, adapter 1 is therefore tightened onto quick coupler 2.

[0022] As can be seen from Figures 3 and 4, the coupling element support 16 is the second pin-shaped of the adapter 1. It is releasably attached to a coupling element 6, and connects with the coupling element 2 on the quick coupler side. The coupling element is held on the adapter side for connection. Power is supplied to attachment 3 on adapter 1. The power connection provided for supplying power is a quick connection between adapter 1 and quick coupler 2. The adapter side, located on the coupling element support 16, connects to the corresponding power supply line on coupler 2. It can be automatically connected using a connecting element (not shown). This allows attachment 3 It can be supplied by hydraulic fluid, electricity, or another energy source.

[0023] The connecting element support 16 has a mount 18 that is strip-shaped (a long, narrow piece), The strip-like mount (attachment) is positioned parallel to the connecting element 6, and the connecting element A hole-like receptacle 17 is provided for a releasable connection to a pin-like coupling element 6. Therefore, the retaining pieces 19 and 20 are arranged. In the illustrated embodiment, two fork-shaped The outer retaining piece 19 and the fork-shaped inner retaining piece 20 are strip-shaped It is positioned on a mount 18 like the one shown. The coupling element support 16 engages above the coupling element 6. Using the fork-shaped retaining pieces 19 and 20, the connecting element 6 is joined by a screw 21. It is press-fitted. The screw 21 passes through the lateral hole 22 in the connecting element and the retaining pieces 19 and 20. It engages within the screw hole 23. The pin-like connecting element 6 is stable against twisting relative to the side portion 4. To hold the whole in place, the connecting element 6 is positioned on the corresponding opening 8 on the side 4. For engagement with the mating surface 25, it has opposing flat regions 24 at at least one end. ru.

[0024] As is clear from Figures 5 and 6, the outside of the pin-like joint 6 is a support for the joint element. The protruding fork-shaped retaining pieces 19 and 20 are on the opposite side of the mount 18 of the body 16. To engage with the corresponding opposing contour 27 above in a shape-matching manner (so that the shapes match, so that the shapes are identical) It includes an integrated shape-fitting (shape-matching, shape-equipped) contour 26. In one example of the embodiment, the shape-fitting contour of the coupling element 6 is designed as an outer contour having a recess. 26 is formed by several groove-like recesses 28, 29 and 30, which are also evident in Figure 3. These recesses are incorporated into the outside of the pin-shaped connecting element 6 at different angles. Rarely, for support on the corresponding mating surfaces 34, 35, and 36 of the bonding element support 16, Forms contact surfaces 31, 32, and 33 that are inclined in different ways. Opposing surfaces 34, 35 and The 36 is a fork-shaped support on the holding piece 19 and 20 that protrudes laterally from the connecting element support 16. It is provided inside the recess 37, as shown above. [Explanation of Symbols]

[0025] 1 Adapter 2 Quick Couplers 3 Attachments 4 Side 5. First connecting element 6. Second connecting element 7 Opening 8 openings 9. The first receptacle 10. The second receptacle 11. Lock elements 12 Contact surface 13 Support 14 Side 15 Receptacle opening 16. Bonding element support 17 Receptacles 18 Mount 19 Outer holding piece 20 Inner holding piece 21 screws 22 Side cave 23 screw holes 24 flat area 25 Opposing surfaces 26 Shape-fitting contour 27 Opposing contours 28 recesses 29 Recess 30 recesses 31 Contact surface 32 Contact surface 33 Contact surface 34 Opposing surfaces 35 Opposing surfaces 36 Opposing surfaces 37 Recess

Claims

1. An adapter (1) for a quick-change system for changing attachments on construction machinery, comprising: two parallel cylindrical coupling elements (5, 6) arranged between parallel sides (4) at a specified distance from each other for connecting the adapter (1) to a quick coupler (2); and a coupling element support (16) configured to hold the coupling element on the adapter (1) side which connects to the coupling element on the quick coupler (2) side, and which is detachably fastened to one of the coupling elements (6), wherein The connecting element support (16) and the connecting element (6) are provided with shape-adjustable connecting portions (26, 27) of corresponding shapes, and the shape-adjustable connecting portion (26) on the connecting element (6) side is recessed from the cylindrical outer surface of the connecting element (6). The adapter is characterized in that the coupling element support (16) is directly connected to the outer surface of the coupling element (6) in a detachable manner, with its orientation fixed so as not to rotate relative to the coupling element (6) by the shape of the shape-adjustable connecting portion (26, 27) itself.

2. The adapter (1) according to claim 1, characterized in that the shape-matching connecting portion (26, 27) is formed by a shape-matching contour (26) incorporated within the connecting element (6) and a corresponding paired contour (27) on the connecting element support (16), and the shape-matching contour (26) and the paired contour (27) have corresponding shapes to each other.

3. The adapter (1) according to claim 2, characterized in that, on the outer surface of the connecting element (6), the shape-fitting contour (26) is formed by several groove-like recesses (28, 29, 30), and support surfaces (31, 32, 33) are provided at the bottom of the recesses (28, 29, 30).

4. The adapter (1) according to claim 3, characterized in that each of the support surfaces (31, 32, 33) is inclined at different angles from each other along the circumferential direction of the outer surface of the connecting element (6).

5. The adapter (1) according to any one of claims 2 to 4, characterized in that the paired contour (27) is arranged on fork-shaped retaining pieces (19, 20) that protrude laterally from the coupling element support (16), and the retaining pieces (19, 20) are detachably connected to the coupling element (6).

6. The adapter (1) according to claim 5, characterized in that the retaining pieces (19, 20) are arranged on a mounting fixture (18) which is provided with an opening (17) for a coupling element on the adapter (1) side.

7. The adapter (1) according to claim 6, characterized in that the retaining pieces (19, 20) are integrally formed with the mounting fixture (18).

8. The adapter (1) according to any one of claims 2 to 7, characterized in that the opposing contour (27) is formed inside a fork-shaped recess (37), and the recess (37) comprises opposing surfaces (34, 35, 36) that are inclined at different angles to each other along the circumferential direction of the inner surface of the recess (37).

9. The adapter (1) according to any one of claims 1 to 8, characterized in that the coupling element (6) on which the coupling element support (16) is provided is fastened to the side portion (4).

10. The connecting element (6) and the side portion (4) are provided with shape-adjustable connecting portions (24, 25) which consist of surfaces that can engage with each other. The adapter (1) according to claim 9, characterized in that the coupling element (6) on which the coupling element support (16) is provided is connected to the side portion (4) using the shape-adjustable connecting portion (24, 25).

11. The adapter (1) according to any one of claims 1 to 10, characterized in that the coupling element support (16) is press-fitted onto the coupling element (6) using a screw (21).

12. The adapter (1) according to claim 11, characterized in that the screw (21) passes through a lateral hole (22) in the coupling element (6) and engages with a screw hole (23) on the coupling element support (16).

13. A quick-change system comprising an adapter (1) and a quick coupler (2) connectable to the adapter (1), wherein the adapter (1) is designed according to any one of claims 1 to 12.

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