Foundation anchoring for a working machine

Abstract

The present invention relates to an apparatus for anchoring a work machine to a foundation that comprises a mounting plate (1) for placing onto a foundation (6), a counter-plate (2) for casting in the foundation (6), a hollow pipe (3) that connects the mounting plate (1) to the counter-plate (2) and is accessible toward its inner side from the side of the mounting plate (1) remote from the counter-plate (2), and a tensile element (4) for introducing into the hollow pipe (3), with the tensile element (4) being releasably anchorable to the counter-plate (2) by a rotational movement. The apparatus is characterized in that it comprises an element providing security against rotation (5) that is connected to an outer contour of the tensile element (4) and arranges it in a rotationally fixed manner. An unintentional release of the tensile element (4 from an anchoring means connected to the counter-plate (2) is suppressed by this apparatus.

Claims

1. An apparatus for anchoring a work machine to a foundation (6) comprising: a mounting plate (1) for placing on a foundation (6); a counter-plate (2) for casting in the foundation (6); a hollow pipe (3) that connects the mounting plate (1) to the counter-plate (2), with an interior of the hollow pipe (3) accessible from the side of the mounting plate (1) remote from the counter-plate (2) and the hollow pipe (3) contacting facing surfaces of the mounting plate (1) and counter-plate (2) but not extending through said plates (1,2); a tensile element (4) for introduction into the hollow pipe (3), wherein the tensile element (4) directly contacts the mounting plate (1) and counter-plate (2) and is releasably anchorable to the counter-plate (2) by a rotational movement, an element preventing rotation (5) is connected to an outer contour of the tensile element (4) and secures the tensile element (4) in a rotationally fixed manner, and the tensile element (4) is removable and extractable from both said plates (1, 2) after the foundation (6) is cast.

2. An apparatus in accordance with claim 1, wherein the element preventing rotation (5) is arranged at a side of the mounting plate (1) remote from the counter-plate (2) or is formed by the mounting plate (1).

3. An apparatus in accordance with claim 1, wherein the element providing security against rotation (5) comprises a passage hole (7) whose inner cross-section corresponds to an outer cross-section of the tensile element (4).

4. An apparatus in accordance with claim 1, further comprising a locking means (8) that is arranged in a fixed position at the side of the mounting plate (1) remote from the counter-plate (2) for a rotationally rigid fixing of the element providing security against rotation (5), with the locking means (8) preferably being an abutment rail.

5. An apparatus in accordance with claim 1, wherein the tensile element (4) has a thread at an end close to the counter-plate (2), said thread being connectable by a rotational movement to the counter-plate (2) itself and/or to an anchoring element (9) that is arranged at a side of the counter-plate (2) remote from the mounting plate (1).

6. An apparatus in accordance with claim 1, wherein the element providing security against rotation (5) lies on the side of the mounting plate (1) remote from the counter-plate (2).

7. An apparatus in accordance with claim 1, wherein the tensile element (4) has a thread at an end close to the mounting plate (1), said thread being formed as engageable to clamping means (10).

8. An apparatus in accordance with claim 1, further comprising clamping means (10) in engagement with the tensile element (4) and providing security against rotation (5) in a direction of a side of the mounting plate (1) remote from the counter-plate (2).

9. An apparatus in accordance with claim 1, wherein the element providing security against rotation (5) comprises an inner part (52) that is directly connected to the outer contour of the tensile element (4) and comprises an outer part (51) adjacent to the inner part (52).

10. An apparatus in accordance with claim 9, wherein the inner part (52) that is directly connected to the outer contour of the tensile element (4) is a clamping element (521) that can be rotationally rigidly attached to the outer contour of the tensile element (4) by a clamp connection.

11. An apparatus in accordance with claim 1, wherein the tensile element (4) is a threaded bar.

12. An apparatus in accordance with claim 1, wherein the tensile element (4) has a section at a side of the mounting plate (1) remote from the counter-plate (2) in a state anchored to the counter-plate (2), and having a cross-section corresponding to one of a circle, a triangle, a square, a pentagon, a hexagon, a septagon, an octagon, a nonagon, a decagon, an undecagon or a dodecagon.

13. An apparatus in accordance with claim 1, wherein the mounting plate (1) has a pin and/or a pin mount (11) for fastening the work machine, wherein the pin and/or the pin mount (11) projects perpendicular from the side of the mounting plate (1) remote from the counter-plate (2).

14. An apparatus in accordance with claim 3, wherein the inner cross-section of the passage hole (7) corresponds to one of a circle, a triangle, a square, a pentagon, a hexagon, a septagon, an octagon, a nonagon, a decagon, an undecagon or a dodecagon.

15. An apparatus in accordance with claim 8, wherein the clamping means (10) is a nut.

16. An apparatus in accordance with claim 11, wherein the threaded bar has a smaller cross-sectional area at two opposite ends than in a section connecting the two ends.

17. An apparatus in accordance with claim 1, additionally comprising a cap (12) for placement onto an end of the tensile element (4) projecting from the counter-plate (2).

18. A method of anchoring a work machine to a foundation (6) having an apparatus in accordance with claim 1, wherein the apparatus is preassembled completely outside a site of operation and is positioned and aligned at the site of operation before a foundation (6) is cast.

19. A method of dismantling an anchorage of a work machine to a foundation (6) comprising: releasing clamping means (10) in engagement with a tensile element (4); lifting and/or dismantling an element preventing rotation (5) that rotationally rigidly fixes the tensile element (4) in an assembled state; and carrying out a rotational movement of the tensile element (4) to release an anchoring connection to a counter-plate (2) or to an anchoring element (9) anchoring the tensile element (4) to the counter-plate (2), and with the tensile element (4) directly contacting both a mounting plate (1) and the counter-plate (2) in the anchoring connection.

20. The method in accordance with claim 19, wherein the clamping means (10) is a nut.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further advantages and properties of the invention will be explained in more detail with reference to the embodiments shown in the Figures. There are shown:

(2) FIG. 1: a first embodiment of an apparatus in accordance with the invention in a side view;

(3) FIG. 2: a second embodiment of an anchorage apparatus in a side view;

(4) FIG. 2a: an element providing security against rotation of the second embodiment in a plan view;

(5) FIG. 2b: a plan view of the second embodiment of the anchorage apparatus without clamping means;

(6) FIG. 3: a third embodiment of the anchorage apparatus in a side view;

(7) FIG. 3a: a plan view of the element providing security against rotation of the third embodiment of the anchorage apparatus;

(8) FIG. 3b: a plan view of the third embodiment of the anchorage apparatus without clamping means;

(9) FIG. 4: a fourth embodiment of the anchorage apparatus in a side view;

(10) FIG. 4a: a plan view of the element providing security against rotation of the fourth embodiment;

(11) FIG. 4b: a plan view of the fourth embodiment of the anchorage apparatus without clamping means;

(12) FIG. 5: an overall representation of the anchoring principle with the fourth embodiment with reference to a side view;

(13) FIG. 6: an oblique view of the apparatus in accordance with the invention; and

(14) FIG. 7-15 plan views of alternative embodiments of the element providing security against rotation with holes of different cross-section therethrough.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(15) In the following passage, different embodiments of the apparatus in accordance with the invention for anchoring a work machine to a foundation will be presented. The anchorage in an on-site concrete foundation should introduce the occurring compression forces and tensile forces into the foundation.

(16) FIG. 1 shows a side view of a first embodiment of an anchorage apparatus in accordance with the invention. The mounting plate 1 can be seen that is connected to the counter-plate 2 via a hollow pipe 3. The tensile element 4 is introduced into the hollow pipe 3 into an opening matching the hollow pipe 3. The tensile element 4 furthermore extends through an opening in the counter-plate 2 that is likewise arranged in the region of the hollow pipe 3. The tensile element 4 has, in the section at the side of the counter-plate 2 that is remote from the mounting plate 1, a thread that in an operative relationship with a nut 9 or with its internal thread. The nut 9 (anchoring element) provides that a movement of the tensile element 4 in the direction of the mounting plate 1, that is out of the opening of the counter-plate 2, is suppressed. The tensile element 4 is thereby held tight by means of the counter-plate 2 in the event of any tensile forces arising. A cap is designated by reference numeral 12 that is placed onto the end of the tensile element 4 projecting from the counter-plate 2 to prevent a connection of the tensile element 4 and the concrete on a casting procedure of a concrete foundation.

(17) An element providing security against rotation 5 can furthermore be seen that is embodied by the mounting plate 1 in this embodiment. The element providing security against rotation 5 or the mounting plate 1, for example, has a passage hole whose cross-sectional shape corresponds to a six-angled form. The tensile element 4 furthermore also has a corresponding outer contour (a six-angled form in the example) in the section extending through the passage hole of the element providing security against rotation 5 or of the mounting plate 1 so that, on a corresponding alignment of the two components, a rotation of the tensile element 4 is precluded on a fixed-position arrangement of the element providing security against rotation 5 or of the mounting plate.

(18) A clamping means 10 is preferably screwed onto a thread of the tensile element 4 to be able to introduce tensile forces to the element 4, with the thread being arranged close to an end section of the tensile element 4. It is thereby achieved that the tensile element 4 is clamped between the counter-plate 2 and a stabilizing plate 14. Tensile forces that can be passed on directly from the stabilizing plate 14 to the tensile element 4 via the clamping means 10 can thus be easily led off.

(19) The stabilizing plate 14 has a round passage hole through which the tensile element 4 passes. In this respect, the tensile element 4 likewise has a circular cross-section in the region that passes through the stabilizing plate 14. The cross-section of the tensile element 4 only changes toward a six-angled form in the transition from the stabilizing plate 14 and from the mounting plate 1 or from the element providing security against rotation 5. The stabilizing plate 14 with its passage hole serves the guiding, stabilizing, and holding of the tensile element 4.

(20) FIG. 2 shows a second embodiment for anchoring a work machine to a foundation and in particular differs from the preceding embodiment by the different design of the element providing security against rotation. Identical reference numerals are furthermore used for identical components and will not be described again any more or no longer in full performability.

(21) Unlike the first embodiment, the element providing security against rotation 5 now lies on the mounting plate 1 and is not embodied by the mounting plate 1. The element providing security against rotation 5 has a passage hole through which the tensile element 4 extends and has an inner cross-sectional area that substantially corresponds to the outer contour of the tensile element 4 in this region. It must, however, be noted that the element providing security against rotation 5 changes its inner cross-sectional area from circular to a six-angled form in the course toward the mounting plate 1. In addition, locking means 8 are arranged in a fixed position at the mounting plate 1 and suppress a rotation of the element providing security against rotation 5 or of the tensile element 4 in operative connection therewith. If therefore a rotational force is exerted along the longitudinal axis of the tensile element due to a force effect originating from the outside, the arrangement of element providing security against rotation 5 and locking means 8 counteracts it and prevents a rotation of the tensile element 4. An unwanted release of the tensile element 4 from the anchoring element 9 is thereby also not possible in the event of defects during the preloading procedure.

(22) FIG. 2a shows a cross-sectional view of the element providing security against rotation 5 in accordance with the second embodiment, wherein the sectional view is cut at the level of the element providing security against rotation 5 in which the tensile element 4 has a round cross-section and the element providing security against rotation 5 already has a cut-out in six-angled form. The tensile element 4 in the round section and the inner basic shape of the element providing security against rotation as a six-angled form can be recognized. It is accordingly clear that on the introduction of a tensile element 4 that has an outer shape corresponding to the passage hole, a rotation of the tensile element 4 is not possible without a rotation of the element providing security against rotation 5.

(23) FIG. 2b shows a plan view of FIG. 2 without the associated clamping element 10 (nut). The locking means 8 in the form of abutment rails arranged at oppositely disposed sides of the element providing security against rotation 5 can be recognized. The tensile element 4 passing through the passage hole 7 can additionally be recognized.

(24) FIG. 3 shows a third embodiment of the apparatus for anchoring a work machine to a foundation that mainly differs from the preceding embodiment in the multi-member embodiment of the element providing security against rotation 51, 52.

(25) The element providing security against rotation 5 can be divided into two parts. An inner part 52 and an outer part 51 surrounding it. The outer part 51 adjacent to the clamping means 10 has a passage hole 7 that corresponds to a circular bore. The thread of the tensile element 4 is led through in this section.

(26) This embodiment furthermore comprises a washer 13 that is optional for all the embodiments and that is arranged between the clamping means 10 and the element providing security against rotation 5. This has the advantage of a uniform force transmission of the clamping means 10 to the element providing security against rotation 5.

(27) The element providing security against rotation 5 of the third embodiment comprises an inner part 52 and an outer part 51 that is adjacent to it and that has a cut-out into which the inner part 52 can be introduced.

(28) The simple production of the individual components of the element providing security against rotation 5 is advantageous in this embodiment.

(29) As shown in the plan view of the inner part 52, the inner part 52 has a passage hole 7 that substantially corresponds to the outer contour of the tensile element 4. In this respect, no transition of differently shaped cross-sectional areas that is technically complex in production has to be provided in the passage hole 7. The outer part 51 can rather have a circular passage bore through which the tensile element 4 is led. The security against rotation is achieved by the inner part 52 that is in operative connection with the tensile element 4. The operative connection is transferred to the locking means 8 via the outer part 51.

(30) FIG. 3b shows a plan view of the third embodiment of the anchorage apparatus without clamping means 10. The tensile element 4 can be recognized that passes through the passage hole of the outer part 51 and the locking means 8 arranged at oppositely disposed sides of the outer part 51. The cut-out of the outer part 51 in which the inner part 52 is mounted is marked by dashed lines.

(31) FIG. 4 shows a fourth embodiment of the present invention that differs from the preceding embodiment in that the inner part 52 of the element providing security against rotation 5 is configured in two parts. In addition, the inner part 521 surrounds a region of the tensile element that is configured as circular in its cross-section. Due to the inner part 52 formed as a clamping element 521, it is nevertheless possible to establish a rotationally rigid connection of the inner part 52 to the tensile element 4. For this purpose, an element comprising two parts is placed around the tensile element and is fixed at the tensile element by clamping screws such that the clamping element 521 co-rotates on a rotation of the tensile element 4.

(32) To facilitate a release of the tensile element 4 from the anchoring element 9, a cross-sectional shape differing from a circle is provided at the end of the tensile element 4 remote from the counter-plate 2 and, for reasons of simplicity, can be brought into engagement with a lever tool. Larger forces can then be applied for rotating the tensile element 4 or for releasing the anchoring connection to the anchoring element 9.

(33) FIG. 4a again shows a view of the inner part, here in the embodiment of a clamping element 521, that can be attached in a rotationally fixed manner to the tensile element 4 with the aid of two connection screws.

(34) FIG. 4b shows a plan view of the embodiment of the anchorage apparatus shown in FIG. 4 without clamping means, here a nut, in which the tensile element 4, the outer element 51 of the element providing security against rotation 5, and the two locking means (abutment rails) can be seen.

(35) FIG. 5 shows an overall representation of the anchorage principle with reference to the above-described fourth embodiment of the anchorage apparatus. It can be recognized that the mounting plate 1 lies on a foundation 6 and the hollow pipe 3 as well as the counter-plate 2 and the anchorage element 9 are surrounded by the foundation. If now tensile forces are applied, that is forces that pull the mounting plate 1 out of the foundation 6, said forces are particularly effectively introduced into the foundation by the anchorage apparatus.

(36) Pin mounts 11 that are molded to the mounting plate 1 and that are used to connect to a work machine can additionally be recognized.

(37) In a method for anchoring a work machine to a foundation, the apparatus is preassembled outside the site of operation and is positioned and aligned at the site of operation before the foundation 6 is cast.

(38) On a dismantling of the anchorage, the clamping means 10 that clamps the tensile element 4 to the counter-plate 2 has to be released, all the components placed onto the tensile element 4 such as the element providing security against rotation 5, that can also be designed in multiple parts, have to be removed from the tensile element and, in a next workstep, the mounting plate has to be lifted off the foundation. In addition, the tensile element can be released from the anchoring means 9 by carrying out a rotational movement and can be used again on a repeated setup of an anchorage apparatus.

(39) FIG. 6 shows an oblique view of the anchorage in accordance with the invention in which large points of coincidence with the first embodiment are present. In this Figure, a plurality of the apparatus in accordance with the invention are shown that together serve to anchor a work machine to a foundation. The tensile element 4 can be recognized that has a section that substantially corresponds to a six-angled form. In addition, the tensile element 4 has a section having a circular cross-section. The element providing security against rotation 5 is embodied by the mounting plate 1 and has a passage hole that has an inner cross-sectional shape that suppresses a rotation of the tensile element 4 configured as a six-angled form. The counter-plate 2 and the anchoring element 9 in operative connection with the tensile element 4 can additionally be recognized. The cap 12 serves as protection from a flowing in of concrete. The stabilizing plate 14 with its passage hole serves the guiding, stabilizing, and holding of the tensile element 4. The hollow pipe 3 connects the mounting plate 1 and the counter-plate 2. The hollow pipe 3 is not shown in part for a better understanding. The cross-sectional shape of the tensile element 4 can thereby be better recognized.