40results about How to "Large overturning moment" patented technology

The invention relates to an automatic solar tracking system which tracks the sun accurately in real time and is used for efficiently collecting and using solar energy. The automatic solar tracking device comprises a solar energy photovoltaic array, an adjusting device connected with the solar energy photovoltaic array and used for adjusting the position of the solar energy photovoltaic array, a stand column for supporting the adjusting device and a control system. The adjusting device is composed of a pitch angle adjusting assembly and a position angle adjusting assembly, wherein the pitch angle adjusting assembly is connected with the position angle adjusting assembly through a vertical shaft, the position angle adjusting assembly is arranged on the stand column, and the control system is used for performing closed loop control on the adjusting device. The accuracy in solar tracking of the automatic solar tracking device is smaller than 0.1, the energy consumption only occupies for 0.5% of the electric energy production of the driving photovoltaic array, and the automatic solar tracking system has the advantages of being long in service life, intact in protection function and the like.

The invention provides a wind and light complementary moving compartment. The wind and light complementary moving compartment comprises a container, an electric generator tower rod is vertically arranged on the upper portion of one corner of the container, and a wind driven generator is arranged on the electric generator tower rod; supporting rod guiding parts are arranged on the two sides of the container, two bottom supporting rods are inserted in the supporting rod guiding parts on the two sides of the container correspondingly; a photovoltaic panel assembly is arranged in a photovoltaic panel frame, the lower portion of the photovoltaic panel border is connected with the two bottom supporting rods, and the upper portion of the photovoltaic panel border is connected with the container; a storage battery group and a controller are arranged in the container, and the controller is connected with the photovoltaic panel assembly, the wind driven generator and the storage battery group; and in a storing state, all parts are stored in the container. The invention further provides an assembling method for the wind and light complementary moving compartment. According to the wind and light complementary moving compartment and the assembling method thereof, the space utilizing ratio is high, disassembling is convenient, and moving and transporting are convenient; power generation capacity is high, continuity is good, and 24 hours of power supply throughout the day can be achieved; and energy consumption of power generation is entirely from natural sunshine and wind, and environmental protection, no pollution and no additional consumption are achieved.

The invention discloses a novel asymmetric floating side plate for a high-pressure large-displacement external-engaged gear pump. The novel asymmetric floating side plate comprises a side plate body, an unloading groove, an oil hole, a driving gear shaft hole, a driven gear shaft hole and a balancing force groove, wherein the unloading groove, the oil hole, the driving gear shaft hole and the driven gear shaft hole are formed in a reverse thrust surface of the side plate body; the balancing force groove is arranged in the balancing surface of the floating side plate; the reverse thrust surface of the floating side plate is also provided with an ear-shaped high-pressure oil groove; the ear-shaped high-pressure oil groove comprises two groups of arc-shaped grooves which are symmetric by taking a horizontal cross shaft as the center; and the tail end of the arc-shaped groove located at a driving gear side is also provided with a damping groove structure located in a transition region. A high-pressure region (oil discharging cavity) on the reverse thrust surface of the floating side plate is enlarged to the side of a low-pressure region (oil suction cavity) of the side plate in a way of excessively opening a w-shaped high-pressure oil groove, so that a gear shaft is balanced, and the radial force of a bearing is reduced; and meanwhile, the tail end of the high-pressure oil groove at a driving gear side is provided with the V-shaped damping groove structure, so that the pressure distribution on the surface of a reverse thrust surface side of the side plate is improved, the symmetric distribution of pressures at the driving gear side and the driven gear side of the reverse thrust surface of the floating side plate is realized, and finally, the force balance of the floating side plate is realized.

The invention relates to an inclined column and long-span roof coupling stress structure. The thickness of a long-span roof is reduced, the overturning moment generated by an inclined column to the whole structure is reduced, an overall stiffness contribution of the inclined column to the whole structure is increased, and meanwhile the large column bottom bending moment and horizontal force which are caused by the inclined column to a foundation are reduced; the structure ductility is increased, and the reliability of the structure is improved.

The invention relates to a straight shaft plunger pump, in particular to a straight shaft plunger pump with a limiting arc-shaped slide rail balance. The straight shaft plunger pump comprises a pump body, a cylinder body, a plunger, a balance, two planar arc-shaped slide rails and a balance angle adjusting device, wherein the bottom of the balance is provided with two slide tracks; the two planerarc-shaped slide rails are arranged at the bottom of the pump body in a sliding mode with the slide tracks of the balance, and are used for supporting the balance; and the slide rails on at least oneside are transverse limiting arc-shaped slide rails and the slide tracks on the balance are transverse limiting arc-shaped slide tracks. The transverse limiting arc-shaped slide rails and slide tracks increase the side force of a contact surface, reduce the transverse play of the balance, improve the stress state of the balance, improve the smoothness of a rotor, lighten vibration and fulfill theaim of reducing noises of the whole pump. Besides, the assembly of the whole pump is more simplified, and the assembly accuracy is also improved.

The invention provides a wheel rim driven speed reducer of an AGV trolley. The wheel rim driven speed reducer of the AGV trolley is high in transmission efficiency, small in size, large in torque andeasy to mount. The wheel rim driven speed reducer of the AGV trolley comprises wheels, suspending flanges and a speed reducing box body. The suspending flanges are located on the inner sides of the wheels, and the suspending flanges are connected to a vehicle body. The speed reducing box body comprises an input cavity, a transmission cavity and an output cavity. An output part of an output shaft is placed in the input cavity, the input cavity is arranged perpendicular to the output cavity, a planetary speed reducing structure is arranged in the transmission cavity, and a bevel gear shaft is arranged at the output end of the planetary speed reducing structure. The wheel rim driven speed reducer of the AGV trolley also comprises an output shaft, wherein the input part of the output shaft islocated in the output cavity, a bevel gear is mounted on the input part of the output shaft in a sleeving mode, the bevel gear is in engaged connection to a bevel gear corresponding to the bevel gearshaft, and the middle part of the output shaft is supported in an output shaft mounting cavity corresponding to the suspending flanges through a pair of back-to-back conical roller bearings.

The invention provides a crossbeam guide rail device. The whole rigidity of the crossbeam guide rail device is greatly improved. The crossbeam guide rail device comprises a planker, a ram, and a crossbeam, wherein the planker is arranged on the crossbeam through a sliding pair, and the crossbeam is connected with the planker through a driving mechanism. The crossbeam guide rail device is characterized in that the sliding pair comprises an upper sliding rail and a lower sliding rail, and the upper sliding rail and the lower sliding rail are respectively arranged at the top and the side of the crossbeam, and are respectively embedded in sliding grooves on the planker.

The invention discloses an exposed column foot joint of a composite pier column and a construction method thereof. The column foot joint comprises a GFRP pipe, section steel, a concrete, a shoe beam,a reinforcing bar, a steel bottom plate and an anchor bolt. The section steel is nested in the middle of the GFRP pipe, and the lower end of the section steel is welded with a shoe beam; Boot beam and steel bottom plate welding; The steel base plate is welded with a number of reinforcing bars, section bars and GFRP pipes for pouring concrete and forming a precast GFRP pipe with the steel base plate Concrete-Steel composite column structure; The steel base plate is provided with a plurality of anchor bolt holes, and the steel base plate is connected with the foundation pre-embedded plate through anchor bolts passing through the anchor bolt holes. The invention discloses an exposed column foot joint, which is suitable for prefabricating GFRP-Concrete-Profile steel composite column, clear force transmission, simple structure, easy construction; The GFRP pipe, concrete and section steel are connected with the foundation by welding steel bar on the steel base plate and welding boot beam with section steel. The axial force and bending moment can be transferred effectively by connecting GFRP pipe, concrete and section steel with the foundation.

The invention discloses a solar energy dual-axis tracking system which comprises a support rod, a solar cell panel and a control system. The top of the support rod is provided with an external gear type slewing bearing. An inner ring of the slewing bearing is connected to the base, and one side of the base is connected to the solar cell panel via two hinges a. An outer ring of the slewing bearingis connected to an azimuth angle tracking mechanism. An elevation angle tracking mechanism is arranged between the other side of the base and the solar cell panel. The control system is electrically connected to the azimuth angle tracking mechanism and the elevation angle tracking mechanism. According to the system, the efficient use of solar energy can be achieved, and the system has good safetyperformance and is not affected by the environment.

The invention discloses a GFRP pipe-concrete-structural steel combination column base joint and a construction method thereof. The joint comprises a GFRP pipe, round steel pipe crossed T-shaped combination structural steel, self-compaction concrete and a box beam; the structural steel is nested into the GFRP pipe, and the lower end of the structural steel is provided with a stretching-out sectionrelative to the GFRP pipe; self-compaction concrete is poured between the structural steel and the GFRP pipe; the lower end of the structural steel is welded to the box beam, and a shearing force nailis welded to the stretching-out section; at the section above the box beam and below the surface of a foundation bearing table, the outer surface of the GFRP pipe-concrete-structural steel combination column is wrapped with two outer sleeve semi-round steel pipes; by adopting the outer sleeve steel pipe mode, shearing force nails are welded to the inner sides of the outer sleeve steel pipes, thestrength of column bottom concrete is improved, and axial force and bending torque of the column can be effectively transmitted to a foundation. By adopting the column foot node mode, axial force canbe transmitted, the large upsetting moment can be resisted, and the requirement for stress, deformation and earthquake resistance of the GFRP pipe-concrete-structural steel combination column can be met.

The invention discloses six-degree-of-freedom flight simulation equipment, which is characterized by comprising a pitching unit, a yawing unit, a rolling unit, a vertical actuating unit, a variable diameter adjusting unit, a rotating arm and a main driving unit, wherein the main driving unit is used for driving the rotating arm to rotate, the vertical actuating unit is slidably connected with therotating arm, the variable diameter adjusting unit is used for driving the vertical actuating unit to longitudinally slide along the rotating arm, the rolling unit is slidably connected with the vertical actuating unit, and the vertical actuating unit is used for driving the rolling unit to slide up and down; the rotating axis of the rolling unit is longitudinally perpendicular to the rotating arm; the rotating axis of the yawing unit is perpendicular to the rotating axis of the rolling unit; and the rotating axis of the pitching unit is perpendicular to the plane where the rotating axis of the yawing unit and the rotating axis of the rolling unit are located together. Therefore, the technical problems that, for example, six-degree-of-freedom flight simulation cannot be carried out in a centrifugal field in the prior art are solved.