초록 ▼

The invention relates to a drive means for a slide valve having two parallel spindles (10) which are driven in rotation by at least one motor (11), travelling nuts (12) which engage the spindles (10) and are movable in the longitudinal direction of the spindles by rotation of the spindles (10), and

The invention relates to a drive means for a slide valve having two parallel spindles (10) which are driven in rotation by at least one motor (11), travelling nuts (12) which engage the spindles (10) and are movable in the longitudinal direction of the spindles by rotation of the spindles (10), and a cross-yoke (13) which is arranged transversely with respect to the spindles (10) and is connected to the travelling nuts (12) on the one hand and to a rod (14) on the other hand, which rod is arranged in parallel between the spindles (10) and is connected or connectible to a slide plate, the rod (14) being axially movable by the motor (11) for the actuation of the slide plate. It is distinguished by the fact that the travelling nuts (12) and the rod (14) are each articulatedly connected to the cross-yoke (13).

대표청구항 ▼

1. Drive means for a slide valve having two parallel spindles (10) which are driven in rotation by at least one motor (11), travelling nuts (12) which engage the spindles (10) and are movable in the longitudinal direction of the spindles by rotation of the spindles (10), and a cross-yoke (13) which

1. Drive means for a slide valve having two parallel spindles (10) which are driven in rotation by at least one motor (11), travelling nuts (12) which engage the spindles (10) and are movable in the longitudinal direction of the spindles by rotation of the spindles (10), and a cross-yoke (13) which is arranged transversely with respect to the spindles (10) and is connected to the travelling nuts (12) on the one hand and to a rod (14) on the other hand, which rod is arranged in parallel between the spindles (10) and is connected or connectible to a slide plate, the rod (14) being axially movable by the motor (11) for the actuation of the slide plate, wherein the travelling nuts (12) and the rod (14) are each articulatedly connected to the cross-yoke (13) via respective pivot joints. 2. Drive means according to claim 1, wherein the travelling nuts (12) each have at least one pivot pin (15a) which is mounted in the cross-yoke (13) so as to be pivotable about a first pivot axis (D1), the first pivot axis (D1) running perpendicular to the spindles (10) in each case. 3. Drive means according to claim 1, wherein the travelling nuts (12) each have two pivot pins (15a, 15b) which are arranged opposite one another and are both mounted in the cross-yoke (13) such said sets of two pivot pins (15a, 15b) are all pivotable about a first pivot axis (D1). 4. Drive means according to claim 1, wherein the travelling nuts (12) are mounted so as to be axially movable in the longitudinal direction (A) of the cross-yoke (13). 5. Drive means according to claim 4, wherein the cross-yoke (13) has apertures (17) in which sliding blocks (19) are arranged so as to be axially movable in the longitudinal direction (A) of the cross-yoke (13), the travelling nuts (12) each being mounted between the sliding blocks (19) so as to be fixed against rotation about the longitudinal axis of the spindles but rotatable about a pivot axis running perpendicular to the longitudinal axis of the spindles. 6. Drive means according to claim 5, wherein the pivot axis running perpendicular to the longitudinal axis of the spindles is a first pivot axis (D1). 7. Drive means according to claim 1, wherein the free end of the rod (14) is connected to the cross-yoke (13) by way of a pivot joint (16) which is movable about a second pivot axis (D2) running perpendicular to the rod (14). 8. Drive means according to claim 1, wherein the spindles (10) are connected to the motor (11) by a common drive shaft. 9. Drive means according to claim 8, wherein the common drive shaft comprises a worm shaft (18). 10. Drive means according to claim 1, wherein the spindles (10) are mounted in a frame (20) via spindle bearings (21) and are connected to drive gears (22), the frame (20) comprising a front plate (24) connectible to a housing (23) of a slide valve and a parallel rear plate (25) spaced apart therefrom, housings of the drive gears (22) being attached to the front plate (24) and the spindle bearings (21) being attached to the rear plate (25). 11. Drive means according to claim 1, wherein the motor (11) comprises an electric motor, pneumatic motor or hydraulic motor. 12. Slide valve having a drive means according to claim 1. 13. Drive means for a slide valve having two parallel spindles (10) which are driven in rotation by at least one motor (11), travelling nuts (12) which engage the spindles (10) and are movable in the longitudinal direction of the spindles by rotation of the spindles (10), and a cross-yoke (13) which is arranged transversely with respect to the spindles (10) and is connected to the travelling nuts (12) on the one hand and to a rod (14) on the other hand, which rod is arranged in parallel between the spindles (10) and is connected or connectible to a slide plate, the rod (14) being axially movable by the motor (11) for the actuation of the slide plate, wherein the travelling nuts (12) and the rod (14) are each articulatedly connected to the cross-yoke (13), and wherein the travelling nuts (12) each have at least one pivot pin (15a) which is mounted in the cross-yoke (13) so as to be pivotable about a first pivot axis (D1), the first pivot axis (D1) running perpendicular to the spindles (10) in each case. 14. Drive means for a slide valve having two parallel spindles (10) which are driven in rotation by at least one motor (11), travelling nuts (12) which engage the spindles (10) and are movable in the longitudinal direction of the spindles by rotation of the spindles (10), and a cross-yoke (13) which is arranged transversely with respect to the spindles (10) and is connected to the travelling nuts (12) on the one hand and to a rod (14) on the other hand, which rod is arranged in parallel between the spindles (10) and is connected or connectible to a slide plate, the rod (14) being axially movable by the motor (11) for the actuation of the slide plate, wherein the travelling nuts (12) and the rod (14) are each articulatedly connected to the cross-yoke (13), and wherein the free end of the rod (14) is connected to the cross-yoke (13) by way of a pivot joint (16) which is movable about a second pivot axis (D2) running perpendicular to the rod (14).