Transmission device of tyre disassembling mechanism of tyre vulcanizer

Abstract

The invention discloses a transmission device of a tyre disassembling mechanism of a tyre vulcanizer, which is driven by a gear and a rack, and comprises a stander (1) that is provided with a left and a right cam plates (2); the left and the right cam plates (2) are provided with cam grooves (12); the transmission device is characterized in that a power source (3) arranged on the stander (1), therack (5) driven by the power source (3) and the gear (6) meshed with the rack (5) are arranged between the left and the right cam plates (2); the two ends of a gear shaft (10) are provided with conveying arms (7) arranged at the outer sides of the left and the right cam plates (2); the other ends of the conveying arms (7) are connected with a connecting frame (4) by connecting shafts (13); the connecting frame (4) is provided with a rotary drum (14) and cams (8) moving in the cam grooves (12); and a tyre disassembling arm (11) passes through the connecting shafts (13) and are arranged on the connecting frame (4). The transmission device has compact and simple structure, stable transmission, low fault rate and convenient maintenance.

Description

Technical field: [0001] The invention relates to a tire vulcanizing machine, in particular to a tire unloading mechanism of a tire vulcanizing machine, especially a transmission device of the tire unloading mechanism of a tire vulcanizing machine. Background technique: [0002] The tire unloading mechanism of the existing semi-steel tire vulcanizer is a lifting and turning type (sickle type), and its transmission device is connected with the sprocket plate through the water cylinder piston rod installed on the frame, and the power is transferred through the sprocket and chain structure. It is transmitted to the transmission arm to realize the movement of the unloading arm according to the track. Although the structure is simple, the cost is low, the unloading cycle is short, and the applicability is good. But owing to having adopted sprocket wheel, chain transmission structure, because the defect that sprocket wheel, chain itself exists, causes some problems to exist in act...

AI Technical Summary

Problems solved by technology

However, due to the adoption of the sprocket and chain transmission structure, there are some problems in actual use due to the defects of the sprocket and the chain itself.

One is because the chain speed and the angular velocity of the driven sprocket change periodically, resulting in additional acceleration and thus dynamic load. Therefore, the reliability of the chain transmitting the power of the tire unloading mechanism is poor, and we cannot predict the time when it will suddenly break , so there is a risk of accidents

Second, after using for a period of time, due to the elongation of the chain, it will affect the tire retreading angle and the rotation stroke of the tire unloading arm. The user must use the special wrench provided by the manufacturer to adjust the chain joint.

The third is that the rigidity of the chain is poor, the mechanical efficiency is low, and the torque transmitted by it is small. Sometimes it is difficult to unload the tire under special circumstances (such as: the capsule is not coated with silicone oil).

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