Paver screed plate with elevation monitoring function

Abstract

The invention provides a paver screed plate with an elevation monitoring function. A linear rail is arranged on the upper end face of a big arm in the length direction of the big arm, a left fulcrum wheel and a right fulcrum wheel which are arranged in the length direction of the rail are slidingly mounted in the rail, the upper faces of the left fulcrum wheel and the right fulcrum wheel are connected with a balance arm, a round hole and an arc-shaped hole with the round hole as the circle center are formed in the balance arm, and a pair of longitudinally-parallel sliding rails are arranged onthe portions, corresponding to the round hole and the arc-shaped hole, of a machine body. Sliding blocks are slidingly assembled in the sliding rails, and the front ends of the sliding blocks are connected with screws matched with the round hole and the arc-shaped hole separately. Touch wheel type limiting switches are mounted beside the left fulcrum wheel and the right fulcrum wheel separately,the limiting switches are electrically connected with a controller, and the controller can judge whether the elevation of the screed plate is positive or negative by detecting switching on and off ofthe limiting switches. A leveling oil cylinder is electrically connected with the controller. A paver can respond to the situation when the elevation of the screed plate is negative, the paver screedplate is kept in a paving state, and the paving quality is improved.

Description

technical field

[0001] The invention relates to a paver screed, in particular to a paver screed with an elevation angle monitoring function. Background technique

[0002] The paver is one of the key equipment for building various grades of roads and municipal roads, as well as the base and surface layers of squares, airports, parking lots, dams and ditches. The asphalt concrete, stabilized soil and other mixed paving materials conveyed by the machine are leveled, shaped and pre-compacted to provide good working conditions for the subsequent further compaction of the road roller.

[0003] Such as figure 1 As shown, the screed device of the paver needs to maintain an elevation angle α between the screed plate and the material during the paving operation. It is also the existence of this elevation angle that the resultant moment of the moment system formed by the acting force on the ironing device in a stable working state is zero. When the height of the front traction point...

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