Driving gear with fixed rail for online measurement of heavy forging at thermal state

Abstract

The invention discloses a driving gear with a fixed rail for the online measurement of a heavy forging at a thermal state. The driving gear comprises a trolley and a ground guide rail; the trolley comprises a frame, an inner wheel, an outer wheel, a rollover protection device, a derail prevention device and a guide rail cleaning device, wherein the outer wheel is a ladder wheel, the ground guide rail is a linear section-arc section mixed guide rail, and a transition guide rail between the linear section and the arc section is a ladder guide rail. When the trolley of the driving gear moves on the transition place between the linear section and the arc section, the outer wheel is changed into a wheel with large diameter to compensate a driving route difference between the inner and outer wheels of the trolley when the trolley is driven at the transition place between the linear section and the arc section, therefore the mobile trolley can travel on a linear rail and can travel on an arc rail. According to the driving gear provided by the invention, the dimension measurement on the horizontal and vertical directions of the forging can be realized by the linear travelling of the trolley and the movement of a measurement box on a vertical guide rail in the trolley; furthermore, the trolley is moved behind the arc section to prevent conditions that the sight of an operator is shielded and the passage of vehicles is affected when the trolley is not measured.

Description

technical field [0001] The invention relates to an on-line measurement technology for hot large forgings, in particular to a walking device with fixed rails for on-line measurement of hot large forgings. Background technique [0002] In the forging of hot large forgings, in order to improve the precision of forgings, reduce the machining allowance, and improve the working environment of workers, it is necessary to automatically measure the dimensional accuracy of forgings online. The measuring device includes a measuring box and a traveling device. The requirements for the traveling device are as follows: ①The measuring box can move horizontally and vertically on the traveling device; The frame and the walking device must be equipped with an anti-tipping device; ③The walking device can move in a straight line and an arc direction. When no measurement is needed, the walking device moves to the arc segment to prevent blocking the operator's sight and affecting the vehicle traf...

AI Technical Summary

Problems solved by technology

However, the existing mobile devices with fixed rails can only walk in a straight line or arc alone, and cannot realize mixed walking; when the mobile device is thin and tall, the traditional mobile device generally uses double-layer rails, that is, ground rails and aerial rails. Therefore, the structure is relatively complicated, and it is not suitable for online measurement of hot large forgings

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