Alignment accessory for snap-change devices

FIELD: construction.

SUBSTANCE: snap-change device for fixation and forced leading, with automatic connection of tools with force closure to bearing implements and excavators includes one part of snap-change device, for instance fixture, where aligning disks are attached on fishing pins or in comparable centre of rotation across their axis. Aligning disks, at least partially, have curved, angular or straight peripheral line, which is distanced differently from axis of fishing pins. On mating part of snap-change device, for instance tool holder, there is at least one control plate attached, which enters zone of aligning disk motion, and curved peripheral line of aligning disk moves along its surface in process of entering. Shape and location of aligning disk relative to control plate are selected with the possibility of complete force or geometrical closure of snap-change device due to rotation around fishing pins only when they have achieved the lowest point in fishing hook.

EFFECT: prevention of warp or inclined position of snap-change device, damages in process of connection.

8 cl, 7 dwg

 

The invention relates to a device for centering, direction or coercive conduct of the attached tool in the process of docking with carrying a gun.

To perform tasks in both stationary and non-stationary conditions is required to replace the instruments the instruments to the same tool you can perform different tasks. This can be, for example, agricultural implements, such as tractors or machines that should be fixed tools for tillage or harvesting.

The same applies to construction machines, in which, depending on the nature of the construction of the soil or tasks on the same host instrument or an excavator should be fastened in different drawing or extraction tools that work can be performed quickly and cost effectively.

For these tasks were designed quick-change device, using which tools and mounted guns can usamusements quickly and simply without the use of muscular strength and without leaving the machine driver.

Construction machines such replaceable tools can be, for example, different buckets, clamps, vibrators for compaction, vibratory plates, crane devices and other tools for working the soil.

In DE 19607896 and DE 10335667 described quick-change device,in which on the host instrument or an excavator boom fixed fastener, connect with a suitable response to her part, found in the attached instrument.

These guns are inherent in the fact that on one part placed extractor pins, and mate - relevant fishing hooks.

The tool change occurs in such a way that the extraction extractor pin from the fishing hook one tool is removed, and then using a rolling boom of an excavator at the end of which are fishing rods, a new tool is provided in an appropriate location for the position. For this extractor pins are fishing hooks tools and the tool is drawn to the gun, moves or, if necessary, turns. When fishing the pins are in the correct end position, i.e. fully reached the lowest point fishing hooks, both parts of the quick-change coupling can be completely pivoted around the center of rotation. Only after that by means of additional parts, such as bolts or dogs, you can connect both parts with the power circuit, so they stuck together.

Due to the quick-change devices are created, on the one hand, the connection with the power circuit, as, for example, when fixing the back of the spade on the excavator. If the set of tools we are talking about mobile devices or tools with which elektroprivada, it is necessary to connect between a more hoses or cables to power the drive energy or control device. For convenience, it should happen fully automatically.

In this case, is of particular importance that, when the engagement of the tool extractor pins could not become distorted or to hook into fishing hooks due to the inclined position. Unfortunately, the quick-change devices of the prior art, this danger of bias exists in a considerable degree, and this can lead to excessive wear or damage to the quick-change device.

In particular, the high risk of injury that occurs when the tool is in addition to the connection with the power circuit is necessary to connect more cables or hoses. To do this, inside or outside of the fastening element for tools on the host instrument or an excavator boom, and instrumentalization with attachable tool secured several sleeves for cables.

If fishing rods fully and evenly wound in both fishing hook, and the two tensioning elements converge to the process circuit, then it may happen that the corresponding coupling elements will not exactly opposite to each other and thus the convergence of the coupling for wires will be damaged or destroyed.

It has big is the value if connected not only simple unprotected clutch, but especially the dirt - and dust-tight couplers described in EP 0918186. Because here the protective cover is opened during the convergence of the coupling element wires, the warp fishing rods and, thus, the inclined position of the parts of a quick-change device can cause damage to the joints.

The basis of the invention lies prevention skewed or inclined position and thereby damage during connection.

This problem is solved by the characteristics of the main claim.

The invention is explained in more detail using the drawings, which depict:

- figure 1 is a side view of the fastening element 3 quick-change devices mounted on the boom 2 excavator or on the host instrument;

- figure 2 is a view of figure 1, rotated through 90°;

- 3 - instrumentalization 8 and the response of the fastening element 3 situated on the replacement tool 9;

- figure 4 is a view of figure 3, with a 90°rotation;

- 5 - position of the centering disk 1 and the corresponding control plate 10 at the beginning of the process of entering the fishing pin 4 in the fishing hook 6;

- 6 - the position in time of the occurrence, and the centering disc 1 prevents premature rotation;

- 7 - the position of the centering disk 1 in to the goals of the process of entering in the fully folded position of the quick-change device.

Skewed fishing pins 4 at the time of their entry into fishing hooks 6 prevents the location of the centering disk 1 on fishing the pins 4. The distance 11 from the side 3' of the fastening element 3, at least equal to the greatest thickness of the fishing hook 6 on the instrument.

Mainly centering disks 1 are made in the area of contact with the fishing hooks 6 at least partially flat or slightly rounded or even concave to the fishing hooks 6 can easily get in between the centering disk 1.

The form of the centering disk 1 is selected so that the outer bounding line 16 different removed from the fishing center pin 4. The preferred way restrictive line 16 curve, but it can also be angular or straight. It is important that it took place at different distances from the axis of the extractor pins 4.

The preferred forms of the centering disk 1 are circular, elliptical or egg-shaped or comparable with these forms of polygons.

When using the form of a circle centering the eccentric disk 1 is mounted on the fishing rod 4.

However, to ensure the function of the centering disk 1, in principle, it is also only part of the surface containing the area of the bounding line 16 of the centering disk 1.

In addition to the collimator is the overarching disk 1 to the response of the fastening element 3 parts, i.e instrumentalization 8 fishing hooks 6, with force closure secures the control plate 10, along with the occurrence of moving the centering disk 1. While the section 16 of the periphery of the centering disk 1 moves along facing the fishing hook 6 of the surface of the control plate 10, partially rotating, objetivas or partially slipping.

The size and position of the centering disk 1 on the fishing rod 4 are selected so that the fastening element 3 around the fishing pin 4 can be fully rotated around the axis of the fishing hook 6 instrumentalities 8 only when the extractor pin 4 is at the lowest point 12 of the fishing hook 6.

Extractor pin 4 is eccentric in centering the disk 1, and the distance 13 over/equal to the distance of 15 from the hook to the control plate 10, and the distance 14 to fishing pin 4 less distance 13 and, in particular, the distance 15.

If the extractor pin 4 has not reached the lowest designated 12, the periphery 16 of the centering disc 1 abuts against the control plate 10 and prevents fastener 3 due to the rotation around the axis of the extractor pin 4 continued to approach instrumentalization 8. This state is shown in Fig.6. Thus, also prevented, so that the fluid coupling, which is, for example, the internal fastening elements is 3, obliquely moved towards each other. This avoids damage to the matching coupling parts.

The control plate 10 is preferably of steel speaker element, for example of rectangular cross-section, which is thrown over the side wall of instrumentalities 8.

The height is selected so that the centering disks 1, at least part of its thickness adjoined to the control plate 10.

Preferably the touch surface of the control plate 10 is straight and flat. However, it may be also preferable to make the touch surface is concave or convex. The control plate can be made in the form of parts made by gas cutting.

Pinning control plates is carried out by welding or screwing. To facilitate entry is recommended to have control plate 10 and the centering disks 1 from both sides of the quick-change device.

Centering at the time of entering, first, due to the fact that the centering hooks 6 in the gap 11 are sent in parallel, and, secondly, due to the fact that the symmetrical arrangement of the two centering discs 1 and two control plates 10 is a likeness of "running-in" or "slide" centering disk 1 on the control plates 10.

Regarding the Ann is romantically 8 centering disc 1 commits to full lock quick-change device for approximately a quarter turn along the boundary lines 16 of the centering disk 1.

Fishing hooks 6 can be mounted either on the host instrument or excavator, and tools. Extractor pin 4 should then be placed respectively on mate.

1. Quick-change device for fixing and forced logging with automatic instruments with the power circuit to the load-bearing guns and excavators, characterized in that
on one part of the quick-change device, such as a fastening element (3), fishing pins (4) or in a comparable center of rotation transversely to their axes are fixed centering discs (1);
centering discs (1)at least partially have a curve, angular or straight peripheral line (16), which in different ways removed from the axis of the extractor pin (4);
on the return part of the quick-change device, such as instrumentalization (8), fixed at least one control plate (10), which is in the area of movement of the centering disk (1), and along the surfaces of which are in the process of entering moves the curve of the peripheral line (16) of the centering disk (1);
the shape and location of the centering disk (1) relative to the control plate (10) is selected with full power or geometric snapping quick-change device by rotation around the fishing pins (4) only when they reached the lowest that is Ki (12) in the fishing hook (6).

2. The device according to claim 1, characterized in that in the area of the peripheral curves lines (16) length (13) of the centering disk (1) to the extractor pin (4) is greater than or approximately equal to the distance (15) extractor pin (4) at the lowest point (12) fishing hook (6) to the control plate (10), the minimum distance (14) peripheral line (16) from the fishing hook (6) is less than the distance (15).

3. The device according to claim 1, characterized in that the centering discs (1) preferably have the form of ellipses, eggs, polygons or eccentric fastened round disks or consist of parts of these forms.

4. The device according to claim 1, characterized in that the centering discs (1) are fixed preferably at a distance (11) from side (3') of the fastening element (3), which approximately corresponds to the maximum thickness of the fishing hook (6).

5. The device according to claim 1, characterized in that the centering discs (1) are connected with the power circuit with the fishing poles (4) or a comparable center of rotation preferably by welding, pressing, hot pressing or bolts.

6. The device according to claim 1, characterized in that the control plate (10) is preferably in the form of straight or curved strips of sheet steel or manufactured gas cutting parts, which are fixed on instrumentalization (8) by welding, bol is s, paste, or control plate (10) formed.

7. The device according to claim 1, characterized in that the extractor pin (4) with the centering discs (1) are located either on the boom (2) excavator and its mounting element (3), or instrumentalization (8), and fishing hooks (6) with the control plate (10) on the appropriate mate.

8. Device according to one of claims 1 to 7, characterized in that the centering discs (1) partially rounded or concave, at least on the surface on which they enter come in contact with the fishing hooks (6).



 

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