DEVICE FOR TRANSMITTING A ROTATION MOVEMENT

Abstract

A device for transmitting a rotation movement includes first and second force transmission sections, each with a drive input and a drive output, and with a first chain guide. The chain guide is arranged between the drive input and output and accommodates an endless chain, which circulates between the drive input and drive output. A middle force transmission section with a middle drive input and a middle drive output, and with a conduit that is arranged between these. The conduit accommodates a hydraulic fluid and transmits forces between the first and the second force transmission section. The hydraulic fluid circulates between the middle drive input and the middle drive output and transmits push forces between the middle drive input and the middle drive output. The first drive output is coupled to the middle drive input, and the middle drive output is coupled to the second drive input.

Claims

1. A device for transmitting a rotation movement, comprising a first force transmission section with a first drive input and at least one first drive output, and with a first chain guide that is arranged between first drive input and the first drive output and is for accommodating a first continuous chain transmitting push forces and pull forces, wherein the first continuous chain circulates between the first drive input and the first drive output and transmits at least one of push or pull forces between the first drive input and the first drive output; a second force transmission section with a second drive input and with at least one second drive output, and with a second chain guide that is arranged between these and is for accommodating a second continuous chain transmitting push and pull forces, wherein the second continuous chain circulates between the second drive input and the at least one second drive output and transmits at least one of push or pull forces between the second drive input and the second drive output; a middle force transmission section for the transmission of forces between the first and the second force transmission section with a middle drive input and a middle drive output, and with a conduit that is arranged between the middle drive input and the middle drive output for accommodating a hydraulic fluid, wherein the hydraulic fluid circulates between the middle drive input and the middle drive output and transmits push forces between the middle drive input and the middle drive output; wherein the first drive output is coupled to the middle drive input, and the middle drive output is coupled to the second drive input.

2. The device according claim 1, wherein the first chain guide and the second chain guide, in regions outside the respective drive input and the respective drive output, comprise deflection regions, wherein the deflection regions in each case have a radius of curvature, and the radii of curvature of the deflection regions of both chain guides in each case do not fall short of a first dimension.

3. The device according to claim 1, wherein the conduits of the middle force transmission section, in regions outside the middle drive input and the middle drive output, comprise conduit deflection regions, wherein the conduit deflection regions each have a radius of curvature, and the radii of curvature of the conduit deflection regions each fall short of a second dimension.

4. The device according to claim 3, wherein the second dimension is smaller than the first dimension.

5. The device according to claim 4, wherein the second dimension is less than half or less than a quarter of the first dimension.

6. The device according to claim 2, wherein the radii of curvature of the deflection regions of the two chain guides are larger than 30 cm.

7. The device according to claim 3, wherein the radii of curvature of the conduit deflection regions are smaller than 10 cm.

8. The device according to claim 1, wherein the middle force transmission section is arranged for overcoming a wall or a ceiling of a building.

9. The device according to claim 1, wherein in a reverse operational manner, at least one of the drive inputs can be operated as a drive output and/or at least one of the drive outputs can be operated as a drive input.

10. The device according to claim 1, wherein the middle drive and/or the middle drive output is realized by a vane cell pump.

11. The device according to claim 10, wherein at least one of the vane cell pumps comprise a force transmission region, in which drive elements and driven elements for the force transmission to and from the hydraulic fluid respectively, immerse into this fluid and form a closed cell, and this force transmission region in the circumferential direction occupies a region of at least 150 degrees and in particular of at least 180 degrees.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The subject-matter of the invention is hereinafter explained in more detail by way of preferred embodiment examples which are represented in the accompanying drawings. In each case are shown schematically in:

[0029] FIG. 1 a drive device according to the state of the art;

[0030] FIG. 2 a simplified representation of this;

[0031] FIG. 3-4 drive devices according to embodiment examples of the invention, with differently designed force transmission sections;

[0032] FIG. 5 a hydraulic drive input or drive output.

DETAILED DESCRIPTION OF THE INVENTION

[0033] Basically in the figures, the same or equally acting parts are provided with the same reference numerals.

[0034] FIG. 2 shows a simplified representation of the drive device according to the state of the art from FIG. 1. The elements represented therein in a simplified manner, such as chain guides, 7a, 7b and deflection housing 1a, 1b for realising a drive input A and a drive output B respectively (or vice versa), are likewise used in the subsequent figures.

[0035] FIG. 3 shows a drive device with differently designed force transmission sections.

[0036] A first force transmission section includes a first drive input A1 and a first drive output B1 and a first chain guide 7a, 7b arranged between these and with a circulating first continuous chain that transmits push forces and pull forces and transmits push forces or pull forces between the first drive input A1 and the first drive output B1.

[0037] A second force transmission section includes a second drive input A2 and a second drive output B2 and second chain guide 8a, 8b arranged between these and with a circulating second continuous chain that transmits push forces and pull forces and transmits push forces or pull forces between the second drive input A2 and the second drive output B2.

[0038] A middle force transmission section includes a middle drive input A3 and a middle drive output B3, and a conduit 9a, 9b that is arranged between these and is for accommodating a hydraulic fluid, wherein the hydraulic fluid circulates between the middle drive input A3 and the middle drive output B3 and transmits push forces between the middle drive input A3 and the middle drive output B3.

[0039] The first driven output B2 is coupled to the middle drive input A3, and the middle drive output B3 is coupled to the second drive input A2, i.e. the drive outputs or drive inputs that are coupled to one another transmit forces and movements in both directions.

[0040] The middle force transmission section with the conduits 9a, 9b can have essentially arbitrary small radii of curvature and a course that is complicated with regard to shape and that could not be realised with a chain-based force transmission.

[0041] FIG. 4 shows another drive device with differently designed force transmission sections. Here, a further drive output B4, which is likewise driven by the second drive input, is arranged in the second force transmission section next to the second drive output B2. In further embodiments, further drive inputs and/or drive outputs lie in the first and/or the second force transmission section in an analogous manner.

[0042] FIG. 5 shows a hydraulic drive input or drive output 10, as can be applied in the middle force transmission section of the previously mentioned embodiments. Slides 11 are mounted in a manner displaceable in the radial direction, in a rotating disc or drum 12. The disc or drum 12 is connected to a drive shaft or driven shaft. The radial displacement of the slides 11 is controlled by way of a cam curve 13. The slides 11 in an extended condition project into a delivery channel and form delivery sections 14, which are sealed to one another and by way of which a hydraulic fluid can be delivered from a first connection 15 to a second connection 16. The device thus acts as a drive input for converting a movement of the drive shaft. Vice versa, a fluid subjected to pressure can be present at one of the connections and bring the slides 11 and thus the disc and drum 12 and the connected shaft into rotation. The device thus acts as a drive output for driving the driven shaft.

[0043] A circumferential region, in which the delivery sections 14 are present, can for example be maximally approx. 4.Math.60=240 degrees or approx. 5.Math.60=300 degrees and minimally be approx. 3.Math.60=180 degrees or approx. 4.Math.60=240 degrees, depending on the rotation angle of the disc or drum 12.