3results about How to "Affects stationarity" patented technology

This utility model discloses a valve ball grinding and positioning device with an anti-displacement structure, including a positioning frame. A back frame for mounting and fixing grinding tools is fixed on the back of the top of the positioning frame. Square columns are inserted into the top of both sides of the positioning frame. A reinforcing shaft is rotatably installed in each set of square columns. A fixing cone for inserting into the inner cavity of the valve ball is fixed at one end of the reinforcing shaft that is close to each other. An anti-displacement component is provided on the positioning frame to cooperate with the fixing cone and position the valve ball. By setting the anti-displacement component, this utility model can autonomously and multi-directionally position the valve ball on both sides and inside according to the size of the valve ball. At this time, the multi-directional and multi-means positioning method improves the positioning stability of the positioning device for the valve ball, effectively avoids the valve ball from easily shifting during the grinding process, and greatly improves the grinding effect of the grinding tool on the surface of the valve ball.

The water-based epoxy color sand filling device comprises a rear vertical plate, a top plate is fixedly connected to one side of the top of the rear vertical plate, supporting columns are fixedly connected to the two corners, away from the bottom of the rear vertical plate, of the top plate, and second telescopic rods are detachably connected to the side walls, close to the top plate, of the two supporting columns. The output end of the second telescopic rod penetrates through the supporting columns to be detachably connected with a liquid receiving plate, a conveying belt is arranged between the supporting columns and the rear vertical plate, a container is placed on the conveying belt, a baffle is fixedly connected to the side wall between the two supporting columns, and the liquid receiving plate is of an L-shaped structure. The device has the advantages that the two second telescopic rods are installed and used for controlling the liquid receiving plate, the liquid receiving plate is located below the pipeline, when filling is stopped, the pipeline is lifted firstly, then the second telescopic rods are started to move the liquid receiving plate to the position below the pipeline, and therefore dripping residual liquid can fall on the liquid receiving plate; in this way, the residual liquid is intercepted and stored, so that the residual liquid does not drop on the conveying belt.

The utility model relates to a hydrogen fuel cell air cooling electric pile working condition simulation test system, which comprises an air compressor, a plurality of air modulation branches, a mixed gas cylinder and an electric pile to be tested, the air compressor is respectively connected with the air inlet end of each air modulation branch, the air outlet end of each air modulation branch is connected with the mixed gas cylinder, and the mixed gas cylinder is connected with the electric pile to be tested. And the mixed gas cylinder is connected with the galvanic pile to be tested. The air conditioning system has the advantages that a plurality of air conditioning branches are arranged, dry air, wet air, hot air and cold air can be obtained and stored, and then the dry air, the wet air, the hot air and the cold air in different proportions are mixed through the mixed air bottle, so that air with different temperatures and humidity can be obtained; pistons are arranged on the gas cylinder and the mixed gas cylinder, the gas pressure in the gas cylinder and the mixed gas cylinder can be adjusted by controlling the pistons, and the situation that gas output stability is affected by gas pressure changes is avoided.