Rotation angle limiting device and excavator

Abstract

The invention provides a rotation angle limiting device and an excavator. The rotation angle limiting device comprises a controller, a limiting block, a first position switch and a second position switch, wherein the limiting block is used for being mounted on a rotation supporting seat; the first position switch and the second position switch are used for being mounted on a rotation support; thefirst position switch and the second position switch are correspondingly positioned on two opposite sides of the limiting block; the rotation support and the rotation supporting seat rotate relative to each other; the limiting block is close to the first position switch or the second position switch; and the controller is used for controlling the rotation support and the rotation supporting seat to be relatively static according to a stop signal of the first position switch or a stop signal of the second position switch. The rotation angle limiting device and the excavator have the beneficialeffects that the rotation angle of the excavator can be limited, thereby ensuring the rotation of an excavator getting-on system only within a preset range; and the excavator getting-on system can automatically stop once the rotation of the excavator getting-on system is out of the preset range, thereby avoiding the occurrence of safety accidents caused by operation errors.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to a rotation angle limiting device and an excavator. Background technique [0002] Excavator, also known as excavating machinery (excavating machinery), is an earthmoving machinery that uses buckets to dig materials higher or lower than the bearing surface, and loads them into transport vehicles or unloads them to stockyards. , are widely used in earthwork, urban construction, water conservancy construction and other occasions. [0003] Generally, an excavator can be divided into two parts: the excavator on-board system and the excavator off-board system. In order to enable the excavator to operate flexibly, there will be a slewing bearing and a slewing The supporting seat is connected in rotation. In order to meet the flexible operation of the excavator boarding system at different angles, the excavator boarding system is generally designed to rotate 360 ​​degrees infinitely....

AI Technical Summary

Problems solved by technology

In order to meet the flexible operation of the excavator boarding system at different angles, the excavator boarding system is generally designed to rotate 360 ​​degrees infinitely. However, in some special working conditions with obstacles and limited working space, the excavator boarding system requires Can only be rotated within a certain range of angles

In this special environment, if the driver's operation error causes the turning angle to be too large, it may cause damage to the excavator on the vehicle or damage the peripheral equipment of the excavator, and even endanger the life of the driver.

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