A tire changer assistant

Abstract

The invention discloses an assistant of a tire mounting / demounting machine. A main arm of the assistant is hinged to a sliding body with a V-shaped guide structure; driven by an actuator, the sliding body longitudinally slides along a square guide rail; the sliding body mainly consists of a front half body, anti-friction sheets and a rear half body; two lateral sides of the sliding body are balanced in stress and good in guiding performance, so that the problem that in the prior art, lateral sides are bad in guiding performance is solved. A main-arm locking mechanism with an external unlocking air cylinder is arranged on the main arm, and the external inching unlocking air cylinder is arranged on the main arm; the unlocking air cylinder is large in cylinder diameter and quick to unlock, the assembling ability is improved, and the unlocking air cylinder is convenient to maintain and long in service life. Quick-changing tire pressing sleeves are respectively arranged under two branch arms hinged to the main arm, so that the assistant can be quickly adapted to the change of tire types during maintenance.

Description

Technical field [0001] The invention belongs to the technical field of the design and manufacture of a tire changer, especially an assistant of the tire changer. It is installed on the operating side of the main body of the tire changer for use. Background technique [0002] European patent EP1897710A1 discloses a rotary support arm tire press assistant, which is characterized by a longitudinal flat guide rail connected to the assistant support, the assistant support is connected to the operating side of the main body of the disassembly and assembly machine, and the longitudinal flat guide rail is provided with sliding elements. It includes anti-friction elements, the sliding element is connected with an actuator for adjusting the height of the sliding element, the sliding element is articulated with the main arm, the main arm is articulated with a supporting arm, the supporting arm is provided with a movable tire pressing cylinder, and the main arm is provided with a main arm wit...

AI Technical Summary

Problems solved by technology

[0004] But the structure of these two kinds of assistants also has three weak points: one, because the thickness of the flat guide rails of these two kinds of assistants is small, the side area of ​​the guide slider is small, and it is easy to produce poor side guidance when subjected to the active force of the main arm; 2. The unlocking cylinder of the above-mentioned first assistant is built into the main arm. Due to the small bore, the unlocking force is small, the unlocking is slow, and there are many faults. Moreover, the non-standard cylinder is used, which is difficult to maintain and cannot be repaired once damaged; third, this The tire pressing elements of the two kinds of assistants only have tire pressing cylinders, which are of a single type and cannot adapt to changes in tire types during maintenance work

Images