A soil processing machine includes a machine frame with two longitudinal beams substantially extending in the longitudinal direction of the machine and two transverse beams substantially extending transverse to the longitudinal beams. A soil-processing roller is supported in the longitudinal direction between the transverse beams on the longitudinal beams so that it can rotate about an axis of rotation of the roller. A coupling arrangement is provided on the machine frame for attaching the machine frame to a further machine frame of the soil-processing machine or to a further machine. A lifting/supporting arrangement is provided on the machine frame for lifting and/or supporting the machine frame in relation to the ground. One of the transverse beams is supported on the two longitudinal beams so that it can rotate about a swivel axis substantially parallel to an axis of rotation of the roller.

A vibratory compactor that generates vibrations by rotation of eccentric masses is provided, which includes an inner eccentric rod positioned inside a roller drum of the vibratory compactor and provided with a rack formed on one side of the inner eccentric rod, a pinion engaged with the rack, a variable eccentric weight engaged with the pinion so that a distance between the variable eccentric weight and a rotation axis of the inner eccentric rod is changed as the pinion is rotated, and an outer eccentric tube including a hole formed thereon to guide movement of the rack back and forth and a support fixture formed thereon to fix a shaft of the pinion so that the pinion is rotated in engagement with the rack, wherein when the inner eccentric rod moves back and forth, the pinion that is engaged with the rack is rotated as much as the movement of the rack, and as a position of the variable eccentric weight is changed, an amplitude of vibration of the roller drum is changed.

A soil processing machine includes a machine frame having two longitudinal members positioned parallel to a machine longitudinal direction and spaced from each other transversely to the machine longitudinal direction, and two transverse members positioned extending transversely to the machine longitudinal direction and spaced from each other in the machine longitudinal direction. A soil processing roller is supported on the longitudinal members such as to be rotatable about a roller rotational axis and positioned between the transverse members in the machine longitudinal direction. A coupling assembly couples the machine frame to another machine frame of the soil processing machine or to another machine. A chassis assembly includes at least one height-adjustable chassis unit supported on the machine frame.

A soil processing machine including a machine frame having two longitudinal members disposed spaced from each other transversely to a machine longitudinal direction, extending substantially in the machine longitudinal direction, and two transverse members disposed spaced from each other in the machine longitudinal direction, extending substantially transversely to the machine longitudinal direction, a soil processing roller rotatably supported about a roller rotational axis in the machine longitudinal direction between the transverse members on the longitudinal members, a coupling assembly for coupling the machine frame to another machine frame of the soil processing machine or to another machine, and a chassis assembly, is characterised in that the chassis assembly includes at least one height-adjustable chassis unit supported on the machine frame.

A soil processing machine comprising a machine frame with two longitudinal beams arranged mutually spaced transverse to a longitudinal direction of the machine substantially extending in the longitudinal direction of the machine and two transverse beams arranged mutually spaced in the longitudinal direction of the machine substantially extending the transverse beams to the longitudinal direction of the machine, a soil-processing roller supported in the longitudinal direction between the transverse beams on the longitudinal beams so that it can rotate about an axis of rotation of the roller, a coupling arrangement for attaching the machine frame to a further machine frame of the soil-processing machine or to a further machine, a lifting/supporting arrangement provided on the machine frame for lifting and/or supporting the machine frame in relation to the ground, wherein one of the transverse beams is supported on the two longitudinal beams so that it can rotate about a swivel axis substantially parallel to an axis of rotation of the roller.

An eccentric weight system for a vibratory mechanism is provided. The eccentric weight system includes a first shaft rotatably supported at a first end by a first shaft support and rotatably supported at a second end by a second shaft support. The first and second shaft supports define a first axis of rotation of the shaft. An eccentric weight is supported by the first shaft and has a center of mass that is offset from the first axis of rotation. The eccentric weight is supported so as to be rotatable about a second axis of rotation relative to the first shaft with the second axis of rotation being offset from the first axis of rotation.

An eccentric weight system includes a first shaft rotatably supported at a first end by a first shaft support and rotatably supported at a second end by a second shaft support. The first and second shaft supports define a first axis of rotation of the shaft. An eccentric weight is supported by the first shaft and has a center of mass that is offset from the first axis of rotation. The eccentric weight is supported so as to be rotatable about a second axis of rotation relative to the first shaft with the second axis of rotation being offset from the first axis of rotation.

An earth working roller for use in an earth working machine includes a roller drum, which extends in a direction along a roller axis of rotation, surrounds a roller interior, and has a circular outer circumferential contour, wherein a substrate breaking configuration is provided on the outer circumferential surface of the roller drum. The substrate breaking configuration includes a plurality of impact bars along the roller drum in the direction of the roller drum axis of rotation, as well as a plurality of breaker bars along the roller drum in a circumferential direction.

A construction machine having a frame and at least one compaction member is provided. The machine also includes a propulsion system having a hydraulic motor adapted to rotate the compaction member. The propulsion system also includes a hydraulic pump fluidly coupled to the hydraulic motor via a high pressure line and a low pressure line. The high pressure line allows flow of a fluid at high pressure from the hydraulic pump to the hydraulic motor. The low pressure line allows flow of the fluid at low pressure from the hydraulic motor to the hydraulic pump. The propulsion system further includes a hydraulic valve fluidly coupled to the low pressure line and a casing of the hydraulic motor. The hydraulic valve selectively allows flow of a portion of the fluid at low pressure from the low pressure line to the casing for cooling of the hydraulic motor.

Provided is a block compactor equipped with a brake mechanism capable of securely locking rollers with a simple structure and stably maintaining a locked state and an unlocked state even when exposed to vibration. A brake pad 12 is fixed to a lower end portion of a brake shaft 11 and is configured to be rotatable together with the brake shaft 11 between two rollers 5 adjacent in the front and rear. By rotating a brake lever 13, the brake pad 12 can be switched between an unlocked state in which the brake pad 12 does not contact with the outer circumferential surfaces of the rollers 5, and the rollers 5 are free to rotate, and a locked state in which the brake pad 12 contacts with the outer circumferential surfaces of the rollers 5, and the rollers 5 cannot rotate with the friction force.