Self-locking arm-of-force measurer for hopper car bottom door opening/closing mechanism and measuring method

Abstract

The invention relates to a self-locking arm-of-force measurer for a hopper car bottom door opening / closing mechanism and a measuring method. The self-locking arm of force refers to a vertical distancefrom a connecting line of centers of pin holes in two ends of a pull rod and a center line of a transmission shaft; the self-locking arm-of-force measurer comprises a measuring rod, wherein positioning holes are formed in two ends of the measuring rods, and the two positioning holes are respectively used for sleeving pin shafts at two ends of the pull rod to achieve a positioning effect; a vertical line on the inner side of the measuring rod is parallel to a connecting line of the centers of the two positioning holes, and the vertical distances from the two parallel lines to the center line of the transmission shaft are equal to each other during measurement; a rectangular groove is formed in a position, corresponding to the transmission shaft, of the inner side of the measuring rod; thewidth of the rectangular groove is larger than the diameter of the transmission shaft; the depth of the rectangular groove is equal to the radius of the transmission shaft. According to the measurer disclosed by the invention, the numerical value of the self-locking arm of force can be directly and accurately measured, and accurate adjustment of the self-locking arm of force is realized, so that the operating convenience of the hopper car is improved while ensuring the running safety.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a self-locking force arm measuring device and a measuring method for a bottom door opening and closing mechanism of a hopper vehicle. Background technique [0002] The funnel car is a kind of railway vehicle set up to improve loading and unloading efficiency and speed up vehicle turnover. It has a bottom door at the bottom of the funnel-shaped car body. The bottom door has a separate or centralized door opening and closing mechanical transmission device. With the help of compressed air or Open and close by manual operation. [0003] There is a kind of hopper car whose door opening and closing mechanism is a big knife lever mechanism. When this kind of door opening and closing mechanism is in the closed position of the door, the bottom door may open automatically when the door is under its own weight or load. Usually, two measures are taken to prevent the door from being open...

AI Technical Summary

Problems solved by technology

Because it is an estimate, the accuracy of the measurement cannot be guaranteed, resulting in inaccurate adjustment of the self-locking force arm; if the self-locking force arm is too small, the door will open slightly when the load is heavy, and vehicle leakage will easily occur; if the self-locking force arm is too large , will cause the door to be difficult to open

In order to ensure the safe operation of the vehicle, the principle of adjusting the self-locking force arm is rather large than small. Although it ensures that the door cannot be opened automatically, it causes the problem that the door is not easy to open during the operation of the vehicle.

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