TW201533305A - Wire pre-wedging device and a method for manufacturing tendon fixed anchors - Google Patents

Abstract

A wire pre-wedging device is provided for wedging tension wires (200) in a tendon fixed anchor (300). The tendon fixed anchor (300) has a plurality of openings (310) for receiving first ends (201) of tension wires (200). The openings (310) in the tendon fixed anchor (300) are configured to receive both the first ends (201) of the tension wires (200) and also the pressure wedges (400). The wire pre-wedging device has a clamping unit for clamping the tendon fixed anchor (300) and a die-plate for pressing the pressure wedges (400) into the openings (310).

Description

Line pre-wedge device and method for manufacturing the same

This invention relates to a wire pre-wedge device and to a method for making a tamping anchor.

In the case of a wind power plant having a concrete tower composed of different segments, the concrete tower is then supported by a tension wire or a tension cable. These tension lines typically extend over the entire length of the tower and are supported against the bottom of the tower and against the top of the tower. A tension line anchor is typically provided at one end of the tension line.

The German Patent and Trademark Office has studied the following documents in the context of priority German patent applications: DE 27 23 152 A1, DE 88 07 620 U1 and DE 101 26 912 A1.

It is an object of the present invention to provide a wire pre-wedge device, a method for manufacturing a tamping anchor, and a wind power plant tower that provides a more cost effective possibility of manufacturing tension wires, such The tension line is wedged by a force line anchor.

This object is achieved by a pre-wedge device as in the first aspect of the present invention, through a method as in the third aspect, and through a wind power plant tower as in the fourth aspect.

Accordingly, a wire pre-wedge device is provided for wedging a tension wire in a fixed anchor. The tamper anchor has a plurality of openings for receiving the first end of the tension line. The openings in the crucible anchor are configured to receive both the first end and the pressure wedge of the tension wires. The wire pre-wedge device includes a clamping unit for clamping the one of the fixed anchors, And for pressing the pressure wedges to one of the openings. The clamping unit has two rotatable clamping rods, the two rotatable clamping rods clamping an upper portion of one of the clamping units on a lower portion of the clamping unit, wherein the crucible fixing anchor clip Hold between the lower portion and the upper portion.

The present invention is also directed to a method of making a tamping anchor, each of which has a plurality of openings that receive a first end of a tension line, wherein the openings in the 腱 anchor are structurally designed to accommodate such The first end of the tension line and the pressure wedge. The 腱 fixed anchor is clamped in a clamping unit. The first ends of the tension wires are introduced into the openings in the crucible anchor such that the first ends of the tension wires protrude beyond the crucible anchor. A pressure wedge is introduced over the first ends of the tension wires and into the openings. The pressure wedges are pressed into the openings.

The present invention is also directed to a wind power plant tower having a plurality of crucible anchors that have been fabricated as described above. The tension line is used to support a plurality of segments of the tower of the wind power plant, and the first ends of the tension wires are clamped in the fixed anchor.

The present invention is also directed to a wind power plant having a tower built from a plurality of tower segments, wherein the tower segments are supported by a tamping anchor and a tension line.

The present invention is directed to a concept of a wire pre-wedge device in which a fixed anchor is wedged into the device and a first end of the tension line can be introduced into the bore of the fixed anchor, and wherein the tension lines are Wedge into the fixed anchor by a pressure wedge. To this end, the fixed anchor is clamped by the clamping bar and the pressure wedges are snapped into the holes of the fixed anchor. The tamping anchor can then be used with a tension line secured thereto to support a number of tower segments of a wind power plant tower.

Further structures of the present invention are the subject matter of the accompanying technical solutions.

Figure 1 shows a schematic diagram of one of the wind power plants according to a first embodiment. The gas The wind power plant 100 has a tower 102 and a nacelle 104. A rotor 106 having three rotor blades 108 and a rotator 110 is mounted to the nacelle 104. The rotor 106 is set to enter a rotational motion by wind operation and thereby drive one of the generators in the nacelle 104. The pneumatic rotor can be coupled directly or indirectly to the rotor or rotor of the generator. The generator system is mounted in the nacelle 104 and produces electrical energy. The pitch angle of the rotor blades 108 can be varied by the pitch motors on the rotor blade roots of the respective rotor blades 108.

Figure 2 shows a schematic diagram of one of the wind power plants in accordance with the present invention. The tower 102 of the wind power plant has a plurality of tower segments 102a, 102b that are placed on top of one another. The tower segments 102a, 102b can be supported by each other by tension wires or tension cables 200. To this end, the tower segments 102a, 102b have a plurality of shrouds 102c through which tension or tension cables 200 can be routed. In accordance with the present invention, a force line anchor 300 can be provided on top of the tower. A clamping unit 500 can be provided on the bottom of the tower, and the pretensioned tension wire or tension cable 200 can be clamped by the clamping unit 500. Figure 2 shows a tension line 200 having a sheath 102c for illustrative purposes only. However, tower 102 in accordance with the present invention has a more typical plurality of tension wires 200 and a casing 102c. As an alternative to this, the tension cable or tension wire 200 can also extend within the tower, i.e., therefore not in the tower wall.

3A and 3B show a plan view and a schematic cross-sectional view of a fixed anchor according to a first embodiment. The tamper anchor or tension wire anchor 300 has a plurality of holes or through holes 310 into which the first end 201 of the tension wire 200 can be introduced. The first ends 201 are thereby inserted from a first side 301 such that they protrude above the second side 302. The bore or bore 310 has a diameter that is greater than one of the outer diameters of the tension wire 200. A tamping anchor or tension wire anchor according to the first embodiment can be used in the tower according to Fig. 2.

4A and 4B are plan views and a schematic cross-sectional view of one of the anchors in accordance with the present invention. As in Figures 3A and 3B, the first end 201 of the tension wire 200 is introduced into the opening or hole 310 such that the first ends 201 of the tension wires 200 protrude from the fixation. Above the second side 302 of the anchor. In addition, pressure wedges 400 are shown in FIGS. 4A and 4B, which are introduced onto the second side 302 of the anchoring anchor 300, above the first end 201 of the tension line, and introduced into the aperture or bore 310. The first end 201 of the tension wire 200 is fixedly clamped.

FIG. 5 shows a schematic view of a pressure wedge 400. The pressure wedge 400 has a first end 410 and a second end 420 and a through hole or hole 430. The inner diameter of the bore 430 is sufficiently long that the first end 201 of the tension wire 200 can be introduced. Thereby, the diameter of the first end 410 is smaller than the diameter of the second end 420. The pressure wedge can be designed as a truncated cone or has a truncated cone-shaped cross section of one of the through holes.

Figures 6A-6D show different views of a line pre-wedge device. The wire pre-wedge device is used to manufacture the 腱 fixed anchor having the first end 201 of the tension wire 200 secured therein as depicted in Figures 4A and 4B.

The wire pre-wedge device has a cover 1100 that is movable into a closed position and an open position. Furthermore, the wire pre-wedge device has a clamping unit 1400 for holding the 腱 fixed anchor 300. To this end, the 腱 fixed anchor 300 is placed in a lower portion 1440 of the clamping device 1400. Next, an upper portion 1450 of the clamping device 1400 can be placed on the crucible anchor 300. The upper portion 1450 is then fixedly clamped via two clamping bars 1430. The clamping bars 1430 have a rotating shaft 1410 and are actuated by a hydraulic cylinder 1500.

The cover 1100 can be moved back and forth by a track system 1600.

When the fixed anchor 300 is fixedly clamped in the clamping unit 1400, the first end 201 of the tension wire 200 is guided through the hole 310 in the fixed anchor 300 such that the first ends 201 protrude beyond The crucible is fixed to the anchor 300. Next, the pressure wedge 400 is pushed over the first end 201 of the tension wire 200 and into the bore 310 of the anchor 300. Next, a template 1810 is pressed by the hydraulic cylinder 1820 in the direction of the clamping device 1400. This movement has the effect that the template 1810 presses the inserted pressure wedge 400 into the hole 310 until the first end 201 of the tension wire 200 is compressed. If the template 1810 is not accurately aligned, it may be necessary The template 1810 is rotated such that it just bears against the inserted pressure wedge 400. After the pressure wedge 400 has been wedged by the template 1810, the template 1810 can be moved back again and the cover can be opened to enable removal of the 腱 fixed anchor 300.

According to another embodiment, a wire pre-wedge device according to the present invention can have a monitoring unit that monitors the extent to which the wires protrude above the fixed anchor (how far the wires protrude from the fixed anchor, for example, see Figure 3B or Figure 4B). A press or wedging procedure may be stopped when the wire projection or overhang is above a first threshold (eg, 13 mm) or below a second threshold (eg, 7 mm). This is advantageous because it is thus ensured that the tension line is always wedged in the correct position. In the wire pre-wedge device according to the invention, and more particularly in the template, for example, nine actuators can be provided, which can convert an electrical signal into a length measurement, which can be followed by Displayed on one of the displays of the device. When the lines are outside the first threshold and the second threshold (ie, when the lines protrude too much or too little, too far or too far away from the fixed anchor), this can be displayed Length measurement. A pressing procedure can be prevented accordingly as needed. If a press has been successfully completed, this can be signaled via an optical and/or acoustic display (eg, a green light).

In accordance with the present invention, a crucible anchor 300 having a tension line 200 can be used to support a plurality of tower segments (according to Figure 2) in accordance with Figures 6A-6D.

100‧‧‧Aerodynamic wind power equipment

102‧‧‧ tower

102a‧‧ ‧ tower section

102b‧‧ ‧ tower section

102c‧‧‧Shell

104‧‧‧Cabin

106‧‧‧Rotor

108‧‧‧Rotor blades

110‧‧‧ rotator

200‧‧‧tension wire/tension cable

201‧‧‧ first end

300‧‧‧腱Fixed anchor/tension line anchor/fixed anchor

301‧‧‧ first side

302‧‧‧ second side

310‧‧‧ openings/holes/through holes/holes

400‧‧‧pressure wedge

410‧‧‧ first end

420‧‧‧ second end

430‧‧‧through hole/hole

500‧‧‧Clamping unit

1100‧‧‧ Cover

1400‧‧‧Clamping unit/clamping device

1410‧‧‧Rotary axis

1430‧‧‧Clamping rod

1440‧‧‧ lower part

1450‧‧‧ upper part

1500‧‧‧ hydraulic cylinder

1600‧‧‧Track system

1810‧‧‧ template

1820‧‧‧Hydraulic cylinder

Advantages and embodiments of the present invention will now be further explained in detail with reference to the drawings.

1 shows a schematic diagram of a wind power plant according to the present invention; FIG. 2 shows a schematic view of one of the towers of a wind power plant according to a first embodiment; FIG. 3A shows a tension line fixing according to a first embodiment. Figure 3B shows a schematic side view of one of the anchors of Figure 3A; Figure 4A shows a plan view of one of the anchors according to a first embodiment having a plurality of pressure wedges; 4B is a schematic cross-sectional view showing one of the anchors of FIG. 4A; FIG. 5 is a schematic view showing one of the pressure wedges according to the present invention; and FIGS. 6A to 6D are different views of a line pre-wedge device according to a second embodiment. view.

100‧‧‧Aerodynamic wind power equipment

200‧‧‧tension wire/tension cable

300‧‧‧腱Fixed anchor/tension line anchor/fixed anchor

400‧‧‧pressure wedge

1100‧‧‧ Cover

1400‧‧‧Clamping unit/clamping device

1410‧‧‧Rotary axis

1430‧‧‧Clamping rod

1440‧‧‧ lower part

1450‧‧‧ upper part

1500‧‧‧ hydraulic cylinder

1600‧‧‧Track system

1810‧‧‧ template

1820‧‧‧Hydraulic cylinder

Claims (5)

A wire pre-wedge device for wedging a tension line in a fixed anchor (300), wherein the fixed anchor (300) has a plurality of first ends (201) for receiving a tension wire (200) Openings (310), wherein the openings (310) are structurally designed in the crucible anchor (300) to receive the first end (201) and the pressure wedge (400) of the tension wire (200) The wire pre-wedge device has: a clamping unit (1400) for clamping the 腱 fixed anchor (300), and a template (1810), which is structurally designed to apply the pressure wedge (400) Pressing in the openings (310), wherein the clamping unit (1400) has two rotatable clamping bars (1430), the two rotatable clamping bars (1430) clamping the clamping unit (1400) One of the upper portions (1450) is clamped to a lower portion (1440) of the clamping unit (1400), wherein the cymbal anchor (300) is clamped to the lower portion (1440) and the upper portion (1450) )between. A method for manufacturing a crucible anchor (300) having a plurality of tension wires (200) each having a first for receiving a tension wire (200) a plurality of openings (310) at one end (201), wherein the openings (310) in the crucible anchor (300) are structurally designed to receive the first ends of the tension wires (200) (201) And the pressure wedge (400), the method has the following steps: clamping the tamping anchor (300) in a clamping unit (1400), wherein the clamping unit (1400) has two rotatable clips Holding a rod (1430), the two rotatable clamping rods (1430) clamp an upper portion (1450) of one of the clamping units (1400) on a lower portion (1440) of the clamping unit (1400) Wherein the crucible anchor (300) is clamped between the lower portion (1440) and the upper portion (1450); the first ends (201) of the tension wires (200) are introduced to the crucible Fixed anchor (300) In the openings (310), the first ends (201) of the tension wires (200) protrude beyond the 腱 fixed anchor (300); the pressure wedges (400) are introduced into the tension wires ( 200) above the first end (201) and into the openings (310); and pressing the pressure wedges (400) into the openings (310). A method for constructing a tower of a wind power plant having a plurality of tower segments, the method having the steps of: manufacturing a crucible having a plurality of tension wires (200) according to claim 2 One method of anchor (300), manufacturing a fixed anchor (300) having one of a plurality of tension wires (200); placing at least two of the plurality of tower segments (102a, 102b) on each other; The at least two tower segments (102a, 102b) are supported by the crucible anchor (300) and the tension wires (200). A wind power plant tower having: a plurality of tower segments and a plurality of tamping anchors and tension wires, the plurality of tamping anchors and tension wires being or may have been manufactured according to the method of claim 2, wherein the tension A line is provided for supporting the tower segments. A wind power plant having: a wind power plant tower as claimed in item 4.