DE9102998U1 - Movement mechanism for transmitting rotary movements in any direction - Google Patents

Description

Description

Movement mechanisms for transmitting rotary movements in any direction

State of the art

Movement mechanisms for transmitting rotary movements are generally gears. The choice of gear type depends on the relative position of the driving and driven shafts. Spur gears are used to transmit movements and forces between parallel shafts. However, if forces and movements are to be transmitted between intersecting shafts, bevel gears are used. They are usually used to transmit movements and forces between one shaft and another at an axial angle of 90. In the current state of the art, rotary movements in an axial angle range smaller, equal or greater than 90 are generally transmitted using cardan joints (universal joints). However, the transmission power and the deflection angle (max. 7 ) are limited in this case.

The aim of the invention is to transmit rotary movements uniformly or non-uniformly at an axial angle of less than, equal to or greater than 90 without the defects mentioned. The limit range of the diffraction angle is smaller with a corresponding arrangement, the speed is not limited. The necessary installation space is small.

The axial forces acting on the driven element in cardan joints are excluded.

problem

The invention specified in claim 1 is based on the problem of creating a movement mechanism for transmitting rotary movements in any direction, which enables a small bending angle without limiting the speed and excluding axial forces acting on the element to be driven in a small installation space.

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invention

These problems are solved by the measures according to claims 1 to 4.

Advantageous effects of the invention

In the specified application, the invention achieves that drive transmissions of movements and forces are directed in any direction. The variety of solutions for general bevel gear drives is thus expanded. The inventive solution is uncomplicated and space-saving in its construction.

Further development of the invention

Advantageous embodiments of the invention are specified in claims 2 and 3.

The further development according to claim 2 enables a variety of arrangements of one drive and several outputs in one plane and one housing for transmitting power in any direction.

The design according to claim enables a larger obtuse axis angle with the help of an additional gear stage and, in extension of this variant, changing the plane to each other, the achievement of an axis angle of 0 to 45 .

Description of the invention

An embodiment is explained using Figures 1 to 4. They show:

Fig. 1 Movement mechanism with an axis angle less than 90°

Fig. 2 Movement mechanism with an axis angle greater than 90°

Fig. 3 Movement mechanism with an axis angle greater than 90°, approximating 180°

Fig. 4 Movement mechanism with three outputs

The figures show drives and outputs in a housing at different axis angles.

In Figure 1, the drive 1 is shown at an axial angle (5) of 45° to 90° to the output 2. The bevel gears 3, 4 are in direct engagement. Thus, rotary movements can be transmitted with different peripheral speeds as characterized in claim 4. The drive and output are generally located in one plane.

In Figure 2, the drive 1 is shown at an axial angle 0 of 90° to 135° to the output 2. In principle, this structure of the transmission is similar to that in Figure 1. The crucial difference is that the output shaft 2 is used opposite to that in Figure 2, unlike in Figure 1. The output angle 6" is therefore the respective supplementary angle to 180 with the same basic structure in Figures 1 and 2.

In Figure 3, the drive 1 is shown at an axial angle Cf of approximately 135° to 180° to the output 2. Since the axial angle G is to be achieved in the approximation of 180°, it is necessary to achieve the corresponding obtuse angle with an intermediate gear. The bevel gears 3, 4 are in direct engagement with the intermediate stage 5. By extending a gear stage with the constraint in another plane, it is possible, starting from the output shaft 2, to return the rotary movement in order to achieve an axial angle of drive 1 and the corresponding return of 180 relative to output 2 from 0° to 45°.

Figure 4 shows a combination variant of three outputs 2, 6, 7 with a mutual axis angle of (S = 120°. The bevel gears 3, 4 and the bevel gears on the output shafts 2, 6, 7 are in direct engagement. In principle, it is possible to mount 2 or more outputs in one plane in a housing 8 and to arrange them with axis angles less than, equal to or greater than 90 to each other and to the drive 1. The corresponding rotary movements can then be transmitted with different peripheral speeds as characterized in claim 4. It is also possible to design individual outputs to be switchable (switched off and switched on again) with several outputs. The outputs in Figure 4 can also be effective in certain spatial areas under certain circumstances.

Claims (4)

Protection claims 1. Movement mechanism for transmitting rotary movements in any direction, characterized in that the axial angle ( G ) between the drive shaft (1) with bevel gear (3) and the output shaft (2) with bevel gear (4) is less than or equal to &igr; (Fig. 1; Fig. 2) is less than, equal to or greater than 90 2. Movement mechanism according to claim 1, characterized in that two or more outputs (2, 6, 7) are arranged in a plane in a housing (8) relative to one another or to the drive (1).
(Fig.4) 3. Movement mechanism according to claim 1, characterized in that an additional gear stage (5) is connected between the drive (1) and the output (2). (Fig. 3) 4. Movement mechanism according to claim 1 to 3, characterized in that the outputs (2, 6, 7) achieve different peripheral speeds greater than, equal to, less than V.. - at