초록 ▼

The invention relates to a soil compacting device having an exciter part (1), which has an unbalance exciter (2) for producing an intermittent exciter force and a contact surface (3) for transmitting a force component of the exciter force directed perpendicularly to the contact surface (3) to the so

The invention relates to a soil compacting device having an exciter part (1), which has an unbalance exciter (2) for producing an intermittent exciter force and a contact surface (3) for transmitting a force component of the exciter force directed perpendicularly to the contact surface (3) to the soil surface (4) to be compacted as a pulsing compressive force. The device also has a vibration damper part (5), which is connected to the exciter part (1) by means of a spring-damper unit (15). The spring stiffness of the spring-damper unit (15), the damping of the spring damper unit (15), the spring pre-load of the spring-damper unit (15), the mass of the vibration damper part (5), the mass moment of inertia of the vibration damper part (5), the mass of the exciter part (1), and/or the mass moment of inertia of the exciter part (1) can be varied during operation.

대표청구항 ▼

1. Arrangement for providing a pulsing compressive force, comprising a) an exciter part with an unbalance exciter for producing an intermittent exciter force and with a contact surface for transmitting a force component of the exciter force, directed perpendicularly to the contact surface, as a puls

1. Arrangement for providing a pulsing compressive force, comprising a) an exciter part with an unbalance exciter for producing an intermittent exciter force and with a contact surface for transmitting a force component of the exciter force, directed perpendicularly to the contact surface, as a pulsing compressive force, to a tool or a work surface to be impinged with the compressive force, andb) a vibration damper part which is connected to the exciter part by means of a spring damper unit, for forming a system capable of being excited to resonant oscillations by the unbalance exciter,characterized in that the arrangement has an idle part which is connected to the exciter part or to the vibration damper part in such a way that it forms a contiguous unit with the exciter part or the vibration damper part, but is however substantially decoupled from them in terms of oscillations, the arrangement is further adapted to vary during operation the spring stiffness (k2) of the spring damper unit, the damping (d2) of the spring damper unit, the spring pre-load of the spring damper unit, and the arrangement is formed in such a way that a variation of the mass (m2) of the vibration damper part, the mass moment of inertia of the vibration damper part, the mass (m1) of the exciter part, and/or the mass moment of inertia of the exciter part is possible by exchanging one or more liquid volumes between the idle part and the exciter part and/or the vibration damper part. 2. Arrangement according to claim 1, characterized in that the unbalance exciter (2) is formed as directed vibrator or as circular vibrator, in order to generate an intermittent exciter force. 3. Arrangement according to claim 1, characterized in that the arrangement is formed in such a way that the vibration damper part is exclusively supported on the exciter part in the direction of gravity via the spring damper unit when operated as intended. 4. Arrangement according to claim 1, characterized in that the arrangement is formed in such a way that the vibration damper part is partially supported on the exciter part via the spring damper unit and on supporting means which are formed separately from the exciter part when operated as intended. 5. Arrangement according to claim 1, characterized in that the idle part is supported entirely by the exciter part, or by the vibration damper part when operated, as intended. 6. Arrangement according to claim 1, characterized in that the idle part is supported entirely by supporting means which are substantially decoupled from the exciter part and the vibration damper part in terms of oscillations, when operated as intended. 7. Arrangement according to claim 1, characterized in that the idle part is supported partially by the exciter part or by the vibration damper part, and partially by supporting means which are substantially decoupled from the exciter part and the vibration damper part in terms of oscillations, when operated as intended. 8. Arrangement according to claim 7, characterized in that the arrangement is formed in such a way that in operation a variation of the weight distribution between the weight portion of the idle part which has to be supported by the exciter part or the vibration damper part, and the weight portion of the idle part which has to be supported by the supporting means is possible, particularly by shifting a weight on the idle part. 9. Arrangement according to claim 1, characterized in that the vibration damper part and/or the exciter part has at least two masses which are movable towards one another when accelerating the vibration damper part or the exciter part respectively, in a direction perpendicular to the contact surface against a spring force, wherein the spring force is variable in operation, for changing the mass moment of inertia of the vibration damper part or of the exciter part respectively. 10. Arrangement according to claim 1, characterized in that the arrangement is formed in such a way that a variation of the spring stiffness (k2) of the spring damper unit is possible by stiffening spring elements of the spring damper unit and/or by varying the force introduction in spring elements of the spring damper unit, particularly by varying a transmission of the introduced forces. 11. Arrangement according to claim 1, characterized in that the arrangement is formed in such a way that the frequency (Q1) of the exciter force (F1), the quantity of the exciter force (F1) and/or the direction of action of the exciter force (F1) of the unbalance exciter are variable during operation. 12. Arrangement for providing a pulsing compressive force, comprising a) an exciter part with an unbalance exciter for producing an intermittent exciter force and with a contact surface for transmitting a force component of the exciter force, directed perpendicularly to the contact surface, as a pulsing compressive force, to a tool or a work surface to be impinged with the compressive force, andb) a vibration damper part which is connected to the exciter part by means of a spring damper unit, for forming a system capable of being excited to resonant oscillations by the unbalance exciter,characterized in that the arrangement is adapted to vary during operation the spring stiffness (k2) of the spring damper unit, the damping (d2) of the spring damper unit, the spring pre-load of the spring damper unit and the mass (m2) of the vibration damper part, the mass moment of inertia of the vibration damper part, the mass (m1) of the exciter part, and/or the mass moment of inertia of the exciter part, and the arrangement is formed in such a way that a variation of the mass (m2) of the vibration damper part, the mass moment of inertia of the vibration damper part, the mass (m1) of the exciter part, and/or the mass moment of inertia of the exciter part is possible by exchanging one or more liquid volumes between the idle part and the exciter part and/or the vibration damper part. 13. Arrangement for providing a pulsing compressive force, comprising a) an exciter part (1, 23) with an unbalance exciter (2) for producing an intermittent exciter force and with a contact surface (3) for transmitting a force component of the exciter force, directed perpendicularly to the contact surface, as a pulsing compressive force, to a tool or a work surface (4) to be impinged with the compressive force, andb) a vibration damper part (5, 25) which is connected to the exciter part (1, 23) by means of a spring damper unit (15, 15a, 15b, 18, 18a, 18b, 22, 22a, 22b), for forming a system capable of being excited to resonant oscillations by the unbalance exciter (2),characterized in that the arrangement comprises a controlling unit or regulating unit by means of which the spring stiffness (k2) of the spring damper unit, the damping (d2) of the spring damper unit, the spring pre-load of the spring damper unit, the mass (m2) of the vibration damper part, the mass moment of inertia of the vibration damper part, the mass (m1) of the exciter part, and/or the mass moment of inertia of the exciter part is or are automatically adjustable in operation depending on measured system variables in such a way that the vibration damper part oscillates in resonance with the exciter part with the same frequency or half of the frequency of the exciter part. 14. Arrangement according to claim 13, characterized in that additionally the frequency (Q1) of the exciter force (F1), the quantity of the exciter force (F1) and/or the direction of action of the exciter force (F1) of the unbalance exciter is or are variable during operation, and are automatically adjustable in operation depending on measured system variables, particularly in such a way that the vibration damper part oscillates in resonance with the exciter part particularly with the same frequency or with half of the frequency of the exciter part by means of the controlling unit or regulating unit respectively.