Stepping sliding moving support with increased step distance

Abstract

The invention discloses a stepping sliding moving support with the increased step distance. The stepping sliding moving support solves the problem that an existing device is small in step distance and high in labor intensity. The stepping sliding moving support is characterized in that a vice beam is provided with a guide rod and a sliding frame fixing seat, a main beam is provided with a sliding frame and a big sliding frame, and the other end of the sliding frame is arranged on the guide rod; the big sliding frame comprises two semi-ring guide sleeves matched with a stepping jack and is fixed on the outer circle of the stepping jack through the semi-ring guide sleeves; the front end of the stepping jack is connected with the sliding frame, and the back end of the stepping jack is connected with the sliding frame fixing seat; the sliding frame slides on the guide rod. According to the stepping sliding moving support, the step distance of the sliding moving support is increased only with one guide rod through auxiliary of guide of the outer circle of the stepping jack on the condition that the length of a top beam is not increased, the working resistance, the structural strength, the length and the cross section of the top beam and the diameter of a stand column cylinder do not need to be increased, the support cost is reduced, the support is light and more convenient to operate, a height space is saved for the working face of a thin coal seam, and the production efficiency is significantly improved.

Description

technical field [0001] The present invention relates to a kind of coal mine support equipment, more precisely relates to a stepping sliding support. Background technique [0002] Stepping sliding support is a common equipment for underground support in coal mines. The conventional design is to set two front and rear guide rods and a stepping jack between the main beam and the auxiliary beam. The front and rear ends of the stepping jack are respectively on the two guide rods. , moving on two guide rods. Due to this structural constraint, each step has certain limitations: First, due to the limitations of supporting force and stability, the main and auxiliary beams cannot be too long, and the front and rear guide rods plus the middle part The length of a walking jack has a relatively large limitation, which limits the walking distance of the sliding support, that is, the step distance, and limits the cutting depth of the shearer, especially when the roof and floor conditions ...

AI Technical Summary

Problems solved by technology

Due to this structural constraint, each step has certain limitations: First, due to the limitations of supporting force and stability, the main and auxiliary beams cannot be too long, and the front and rear guide rods plus the middle part The length of a walking jack has a relatively large limitation, which limits the walking distance of the sliding support, that is, the step distance, and limits the cutting depth of the shearer, especially when the roof and floor conditions are good, the production efficiency cannot be increased.

Secondly, the moving operation of the scraper machine and the sliding support has become relatively frequent, and each operation consumes a lot of labor, which increases labor intensity, increases the burden of safety production, and affects production efficiency to a certain extent.

Images