35results about How to "The installation is firm and stable" patented technology

The invention relates to a torsional fretting friction wear test method, the method is that: an upper testing part is clamped in an upper clamp, a lower clamp is fixed with a high-precision low-speed rotation table by a thread, a vertical central line of a holding cavity of the lower clamp is aligned with a rotating shaft of the high-precision low-speed rotation table, a spherical lower testing part is clamped by the lower clamp; the upper clamp is controlled for up and down movements by a data collection control system, the upper and lower testing parts are contacted and are exerted by a setload, at the same time, the lower clamp and the lower testing part clamped by the lower clamp are controlled by the data collection control system to carry out a plurality of times of reciprocating rotations by a set rotation speed and a rotation angle; at the same time, the friction torque is measured by a six-dimension force / torque sensor which is connected with the upper clamp and is sent to the data collection control system, and a torque-angular displacement curve under the set rotation speed and the load conditions can be obtained by analysis. The method can conveniently allow the materials to generate the small angle torsional fretting friction wear, the degree of the automation is high, the precision of the control and the test is high and the reproducibility of the test data is good.

The invention discloses a building decorative plate. The building decorative plate comprises a base plate and a panel, wherein a threaded hole is formed in the center of the base plate; inserting grooves are respectively formed in the two sides of the base plate; elastic sheets are respectively arranged at the top and the bottom of the base plate; the bottom of each elastic sheet is fixedly connected with the base plate; the top of each elastic sheet is in clearance fit with the base plate; a first inserting sheet is fixed to the top of each elastic sheet; second inserting sheets are arrangedat the bottom surface of the panel; a through hole is formed in each second inserting sheet; each second inserting sheet penetrates through the through hole in the corresponding second inserting sheetof the panel adjacent to the second inserting sheet to be matched with the inserting groove in the corresponding base plate adjacent to the second inserting sheet in an inserted mode; grooves for being matched with the first inserting sheets are formed in the bottom surface of the panel; an adjusting bolt in press fit with the corresponding first inserting sheet is in threaded connection with theouter edge of each groove; a first through hole is formed in the center of the panel; and a fixing bolt penetrates through the first through hole to be connected with the threaded hole. The buildingdecorative plate can overcome the defects in the prior art, simplify the mounting process of the decorative plate and facilitate the adjustment of the decorative plate.

The invention belongs to the technical field of electric power overhaul equipment and provides a portable insulation herringbone ladder platform capable of being assembled. The insulation herringboneladder platform includes a herringbone ladder and a working platform, and the herringbone ladder includes two installation ladder bodies the tops of which are hinged to each other, insulation caps used for achieving fixed positioning between the two installation ladder bodies and multiple connecting ladder bodies; each installation ladder body includes two first grab rods, multiple first cross braces are installed between every two corresponding first grab rods, first connecting holes are formed in the bottoms of the first grad rods, and first connection rope hanging rings are arranged on thetops of the first grab rods; each connecting ladder body comprises two second grab rods, multiple second cross braces are installed between every two corresponding second grab rods, and the top of each second grab rod is provided with a connecting part with a second connecting hole; the working platform comprises a platform body and platform protection fences, multiple fastening bolts are mountedon the platform body through threads, first hooks are mounted on the fastening bolts, and second connection rope hanging rings are arranged on the platform protection fences. The insulation herringbone ladder platform is convenient to disassemble and assemble, the components are convenient to carry and transport after being disassembled and folded, and the occupied space for storage is small.

The invention discloses a finned evaporator which comprises an evaporating pipe and a fin. The evaporating pipe comprises a red copper bent pipe, a middle copper pipe, a liquid inlet pipe and a liquidoutlet pipe which are connected in an S type. The middle copper pipe, the liquid inlet pipe and the liquid outlet pipe penetrate through the fin and extend out of positioning holes in the front sidewall and the rear side wall of a fixed frame. A positioning groove is formed in the middle part of the fixed frame, and the two ends of the fin are clamped in the positioning groove. A lower mountingplate integrated with the fixed frame is arranged at the lower end of the fixed frame, and an upper mounting plate is arranged at the upper end of the fixed frame through screws. Clamping bulges are arranged on the two sides of the lower end of the upper mounting plate and are inserted into the positioning groove. All parts of the evaporating pipe are simply and conveniently mounted and dismounted. The two ends of the fin are clamped in the positioning groove, and the clamping bulges are inserted into the positioning groove, so that the fin is firmly and stably mounted. Meanwhile, the fin is simply and conveniently dismounted and mounted.

The invention discloses a processing system for filling concrete with steel pipes, which belongs to the field of building material processing machinery and equipment. The main material conveying mechanism and the auxiliary material filling mechanism of the invention are arranged on both sides above the processing and stirring mechanism, the stirring driving mechanism of the processing and stirring mechanism is fixedly arranged on the upper side of the preparation stirring tank, and the multi-block external stirring support connection on the outside of the external stirring fixed sleeve The lower side of the outer end of the plate is provided with a processed external stirring rod, and the inner stirring rods are vertically fixed on the lower side of the outer end of the inner stirring support connecting plate outside the inner stirring fixed sleeve. The bracket and the auxiliary material storage tanks are respectively arranged on both sides of the material guiding rotating disk, and the auxiliary material pushing mechanism is arranged on the auxiliary material feeding bracket adjacent to the auxiliary material filling conduit. The invention has a reasonable structural design, can quickly and efficiently produce and prepare steel pipe filling concrete, can conveniently and accurately add production auxiliary materials according to needs, has a high degree of processing automation, and meets the needs of production and use.