Boarding ladder with rotatable and retractable pedal plates for harvester

Abstract

The invention discloses a boarding ladder with rotatable and retractable pedal plates for a harvester. The boarding ladder mainly comprises a boarding ladder bed, pedal plate assemblies, a draw bar, a tension spring, a connecting rod, a hinge pin and an operating lever, and is structurally characterized in that the pedal plate assemblies are slidably assembled on the boarding ladder bed; the draw bar is slidably assembled and connected with the various pedal plates of the pedal plate assemblies; one end of the tension spring is assembled on the boarding ladder bed, and the other end of the tension spring is assembled on one of the pedal plates of the pedal plate assemblies; one end of the connecting rod is slidably assembled and connected with one of the pedal plates of the pedal plate assemblies, the other end of the connecting rod is assembled and connected with the operating lever by the hinge pin, and the operating lever is arranged in a hole of a limiting plate. The boarding ladder has the advantages that the structure of the boarding ladder is simplified, the size of the boarding ladder is reduced, and the production cost is lowered; the boarding ladder is convenient to operate, the pedal plates can rotate and can be retracted, and accordingly the integral width of the harvester can be effectively reduced.

Description

technical field [0001] The invention relates to a car ladder with rotatable and retractable pedals for a harvester, which belongs to the field of machinery. Background technique [0002] Most of the car ladders on the harvester developed in the domestic market are fixed or integral rotary. The fixed loading ladder is fixedly assembled on the harvester and cannot be moved or rotated. Since the pedals protrude from the outside of the whole machine, the width of the whole machine is increased. When harvesting, it is easy to knock down unharvested crops. The integral rotary loading ladder is slidingly assembled on the harvester. When loading, the loading ladder is rotated to the outside of the whole machine, and when harvesting, the loading ladder is rotated to the inside of the whole machine, which will not increase the width of the whole machine. The car ladder has complex structure, large volume and high cost. For this reason, we have invented a kind of simple in struct...

AI Technical Summary

Problems solved by technology

The fixed ladder is fixed on the harvester and cannot be moved or rotated. Since the pedals protrude from the outside of the whole machine, the width of the whole machine is enlarged. When harvesting, it is easy to knock down the unharvested crops

The integral rotary loading ladder is slidingly assembled on the harvester. When loading, the loading ladder is rotated to the outside of the whole machine, and when harvesting, the loading ladder is rotated to the inside of the whole machine, which will not increase the width of the whole machine. The car ladder has complex structure, large volume and high cost

Images