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Tamping stroke adjustment

A technology of adjusting mechanism and repairing machine, which is applied in the direction of road, construction, road repair, etc. It can solve the problems of space occupied by the screed, complex structure of the toggle mechanism, and difficulty in directly installing and adjusting the actuation or driving of the transmission device.

Pending Publication Date: 2022-07-19
JOSEPH VOEGELE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is especially due to the difficulty in performing the actuation or drive of the adjusting gear mounted directly on the eccentric shaft between the eccentric bushing and the eccentric shaft
The toggle mechanism is structurally quite complex and takes up a lot of space on the screed

Method used

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Examples

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Embodiment Construction

[0060] figure 1 A road finishing machine 1 is shown with a screed 2 for making a paving layer 3 in the direction of travel R of the paving. The screed 2 has at least one compaction unit 4 for pre-compacting the paving material 5 supplied to the screed 2 . The compaction unit 4 comprises a tamper bar 6 which can be driven with a variable ramming stroke H and / or a variable frequency F to pre-compact the paving material 5 supplied to the screed 2 .

[0061] figure 2 The compaction unit 4 is shown alone in an enlarged perspective view. The compaction unit 4 has a bearing support 7 fixed to the screed body and an eccentric shaft 8 rotatably mounted thereon. The eccentric shaft 8 drives the connecting rod 9, and the tamper bar 6 is fixed on the connecting rod 9.

[0062] figure 2 Also shown is an adjustment mechanism 10 that is rotationally driven by the eccentric shaft 8 . The adjustment mechanism 10 can be actuated to set a variable desired ramming stroke 11 for the tamper...

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Abstract

The invention relates to a road finishing machine (1) having a screed (2) for producing a paving layer (3), the screed (2) comprising at least one compaction unit (4) for pre-compacting a paving material (5) supplied to the screed (2), the compaction unit (4) comprising at least one eccentric bushing (17) mounted on an eccentric shaft (8), the eccentric bushing (17) being arranged on the screed (2). According to the invention, the eccentric shaft (8) supports the eccentric bushing (17) at a desired angle of rotation, whereby a desired tamping stroke of the ram (6) of the compaction unit (4) is continuously variably set, and an adjustment mechanism (10, 35), which is arranged at a distance from the eccentric shaft (8) and rotates at least partially with a rotational movement of the eccentric shaft (8), can be actuated for rotating the eccentric bushing (17) on the eccentric shaft (8). The invention further relates to a method for continuously variable tamp stroke adjustment on a compaction unit (4) of a road finishing machine (1).

Description

technical field [0001] The present invention relates to a road finishing machine and a method for continuous ramming stroke adjustment on a road finishing machine. Background technique [0002] EP3138961B1 discloses a road finishing machine, the screed of the road finishing machine includes a ramming stroke adjustment device. The ramming stroke adjustment device has an adjustment gear which is arranged between a rotatably driven eccentric shaft and an eccentric bush which is rotatably mounted on the eccentric shaft. The stroke of the tamper bar is set by rotating an eccentric bush on the eccentric shaft. Furthermore, EP 3138961 B1 discloses an adjustment gear which is arranged between a rotatably driven eccentric shaft and an eccentric bush which is mounted on the eccentric shaft in a torque-proof manner, wherein for the adjustment of the ram The ramming stroke of the rod, the eccentric bushing moves on the adjustment drive transversely to the eccentric shaft. EP3138961B1...

Claims

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Application Information

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IPC IPC(8): E01C19/48
CPCE01C19/4833E01C19/4853E01C19/4873E01C19/486E01C2301/20
Inventor K·伯茨R·魏泽尔T·诺尔C·帕夫利克
Owner JOSEPH VOEGELE AG
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