2results about How to "Effective control position" patented technology

This invention discloses a positioning and fine-tuning device for the steel main girder of a cable-stayed bridge with a double-tower integrated fixed system, belonging to the field of bridge construction technology. The device includes a pre-embedded support system, an elevation adjustment mechanism, a planar limiting mechanism, a stiffening and stabilizing structure, and a measurement and control system. The pre-embedded support system includes pre-embedded steel supports and their top support plates and vertical plates. The elevation adjustment mechanism uses M50 adjusting bolts penetrating the support plates for vertical fine-tuning. The planar limiting mechanism includes transverse and longitudinal M50 limiting bolts set on the sides of the vertical plates. The stiffening and stabilizing structure enhances stability through stiffening plates, angle steel cross bracing, and diagonal reinforcing bars. The measurement and control system includes various measurement and control points deployed on the steel beam. This invention, through a combination of mechanical fine-tuning and real-time measurement and control, achieves rapid and accurate three-dimensional spatial positioning of large-tonnage steel main girders, effectively solving the problems of low accuracy and poor efficiency in traditional construction methods.

The utility model relates to a throw -out shot cleaning machine technical field, concretely relates to a dust absorption structure of shot -blasting machine, including base, the top of base is fixedly connected with support frame, the top of support frame is provided with dust absorption mechanism, the top of base is fixedly connected with support, the top of support is provided with the clamping mechanism, the top of base is fixedly connected with the conveying frame, the outside rear side of support frame is provided with cleaning mechanism, the clamping mechanism includes arc plate, the top of arc plate is fixedly connected in the top of support, the top of arc plate is connected with two clamping plates of sliding, the utility model discloses, when needing dust absorption, clamping plate opens, and dust absorption head enters the working area under the action of telescopic link, when shielding, clamping plate closes, and telescopic link is shielded in the top of clamping plate, and the design of clamping mechanism can effectively control the position of dust absorption head, and the stable operation of shot -blasting machine under dust absorption and non dust absorption state is ensured.