33results about How to "Change pitch angle" patented technology

The invention discloses a photovoltaic plate pitching angle manual adjusting and positioning mechanism which comprises a standing pillar, an angle adjusting mechanism and an angle positioning mechanism. The angle adjusting mechanism and the angle positioning mechanism are arranged above the standing pillar. The angle adjusting mechanism comprises an installation platform, a lifting screw rod, a standing bearing block, a driving rotation shaft, a speed reducer, a motor installed on the speed reducer, a pitching rotation shaft which is installed in the middle of the driving rotation shaft and perpendicular to the driving rotation shaft and a pitching bearing block which is fixedly installed on the backlight side of a photovoltaic plate installation frame. The angle positioning mechanism comprises a positioning dial and a positioning pointer. The photovoltaic plate pitching angle manual adjusting and positioning mechanism is simple in structure, convenient to machine, manufacture, use and operate and capable of driving the lifting screw to move by rotating a manual handle so as to change the pitching angle of the photovoltaic plate assembly. The positioning mechanism composed of the positioning indicator and the positioning dial is arranged on the pitching rotation shaft and the pitching bearing block and precision in adjustment by an operator is improved.

The invention provides a frisbee launching robot. The robot comprises a launching device, wherein the launching device comprises a launching platform, a track, a turntable, a frisbee box used for storing frisbees and a steering engine, wherein the track, the turntable, the frisbee box and the steering engine are arranged on the launching platform; the track is arranged to form an arc shape; a channel through which the frisbee flies out is formed between the track and the turntable; the steering engine is positioned at one end of the track and is equipped with a shifting sheet for pushing the frisbee to enter the channel; a gap for storing one frisbee is formed in the bottom part of the frisbee box. According to the frisbee launching robot, the launching device is arranged and can realize the basic frisbee launching function as well as the automatic frisbee feeding function; when in use, the frisbees are stored in the frisbee box, and the shifting sheet is driven by the steering engine to push the bottom frisbee to enter the track, and then the frisbee accelerates to rotate and then flies out through the frictional force between the turntable and the track; the frisbee launching distance can be changed by changing the rotating speed of the turntable and the frictional force between the turntable and the track.

The invention provides a portable photovoltaic bracket and belongs to the technical field of solar energy utilization. A bottom plate is composed of a front bottom plate and a rear bottom plate both of which are long rectangular plate structures. An electric push rod is a four-section telescopic structure. The first section of the electric push rod is tangent to the bottom surface of the bottommost photovoltaic bracket. The left and right sides of the top surfaces of the two ends of the photovoltaic bracket in the long axis are provided with bracket guide rails that cooperate with bracket sliders. The upper end of each bracket guide rail is provided with a stopping block. One end of a double-headed screw is fixedly connected to a first motor output shaft and is connected with the rear bottom plate through a second bearing seat. The other end of the double-headed screw is fixed to the rear bottom plate through the second bearing seat. The rear bottom plate below the double-headed screwis provided with two connecting rod guide rails. The lower surface is provided with a chute that cooperates with the connecting rod guide rails. Both ends of the upper side of the topmost photovoltaicbracket are provided with connecting plates. The two ends of a slide rod with the slider are fixed to the photovoltaic bracket through the connecting plates. The middle of the upper edge of the topmost photovoltaic bracket is provided with a photoelectric detection device, and the upper surface of the rear bottom plate is provided with a controller.

A power generator (1, 110) according to an embodiment includes a propeller (13), a position detector (16), and a pitch controller (50). The propeller (13) includes a plurality of blades (13b1, 13b2, 13b3) whose pitch angle is changeable, and is rotated by a fluid. The position detector (16) detects the rotational position of the propeller (13). The pitch controller (50) performs pitch control processing for changing the pitch angle depending on the position of each of the blades (13b1, 13b2, 13b3) specified by the rotational position of the propeller (13).

The invention provides a blade pitch variation transmission assembly. The blade pitch variation transmission assembly comprises a winding drum, a pitch variation bearing and a connection belt providedwith two connection ends; and the connection belt is wound around the winding drum, the two connection ends are made to be fixedly connected to the pitch variation bearing from the two sides of the winding drum, and the tangent points between the connection belt and the two sides of the pitch variation bearing are located on the two sides of a connection line between the center point of the winding drum and the center point of the pitch variation bearing correspondingly. The blade pitch variation transmission assembly drives the pitch variation bearing to rotate through the winding drum so that the pitch angle of a blade can be changed, and meanwhile, the pitch variation convenience and safety can be improved. Accordingly, the invention further provides a blade pitch variation method anda power generating unit.

The invention discloses a forest spraying device. The forest spraying device comprises a bottom plate, wherein a rotary plate is rotatably connected to the left side of the upper end of the bottom plate through a rotating shaft, an electric push rod is fixedly connected to the upper end of the rotary plate, and a U-shaped fixing plate is fixedly connected to the upper end of the electric push rod;a same atomizing nozzle is rotatably connected to the inner walls of the sides, opposite to each other, of the front and rear of the U-shaped fixing plate through a pin shaft, one end of the pin shaft penetrates and extends out of the U-shaped fixing plate, and is fixedly sleeved with a swing rod, and a strip-shaped opening is formed in the rod wall of the swing rod; and a drive motor is fixedlyconnected to the outer wall of the U-shaped fixing plate, a turntable is fixedly connected to the output shaft of the drive motor, and a deflection rod which is eccentrically arranged and is movably sleeved in the strip-shaped opening is fixedly connected to the surface of the turntable. The angle of elevation and depression of the atomizing nozzle can be changed continuously, so that the sprayingrange is increased, and the spraying efficiency is improved.

The invention belongs to the field of detection of the thermal performance of a solar water heater, and specifically relates to a household solar water heating system thermal performance test platform. The test platform comprises a rotatable pedestal and a control assembly which controls the rotatable pedestal to rotate at a specified speed, the rotatable pedestal is provided with a placing platform used for the placement of a solar water heater to be tested, the surface of a heat-collection plate of the solar water heater to be tested is arranged on the placing platform in an inclined manner, the rotatable pedestal is also provided with a planar mirror, the surface of the heat-collection plate of the solar water heater to be tested on the placing platform is arranged on the sunlight reflecting path of the planar mirror, and the test platform also comprises a data acquisition and processing assembly. According to the invention, a perfect basic hardware platform is provided for the detection of the system performance of a current household solar water heater, difficulty brought by traditional natural light tests is overcome, the test platform can adapt to the outdoor environment well, the test platform is suitable for testing a wide irradiation scope, and the testing efficiency is very high.

The invention relates to the technical field of plant protection equipment, in particular to a multifunctional plant protection operation vehicle for orchards. The multifunctional plant protection operation vehicle for the orchards comprises a vehicle body frame, wherein a power system, a mowing system and a pesticide spraying system are arranged in the vehicle body frame, and the power system is arranged at the bottom of the vehicle body frame. The multifunctional plant protection operation vehicle for the orchards is characterized in that the pesticide spraying system comprises an atomizing head, the atomizing head is connected with the vehicle body frame through a swinging mechanism;, and the swinging structure is used for uniformly spraying the pesticide liquid onto the crowns of the fruit trees. According to the invention, a pesticide tank is arranged in the plant protection vehicle, the swinging structure comprises a lifting device and a crank driving mechanism, the lifting device is hinged to one side of the atomization head, and a crank driving mechanism is hinged to the tail of the atomizing head through a connecting rod. As the fruit trees are different in variety and different in size and different in height in different growth stages, the liquid pesticide can be sprayed uniformly only by continuously swinging the spray head up and down, and the effect of spraying the liquid pesticide by simulating hands is achieved.

The invention is suitable for the technical field of goods shelf display screens, and provides a light and thin integrated goods shelf display screen capable of being adjusted in multiple dimensions, which comprises a movable seat and an adjusting seat, wherein a sliding rail is connected with the movable seat; sliding holes are respectively formed in the left end and the right end of the top of the movable seat; clamping mechanisms are respectively mounted in the left and right ends of the movable seat; the bottom ends of the clamping mechanisms are connected with the sliding rail; the rear end of a right rear connecting plate is connected with the front end of the movable seat; the front end of the right rear connecting plate is rotationally connected with a connecting piece; the rear end of a left rear connecting plate is connected with the front end of the movable seat; the front end of the left rear connecting plate is rotationally connected with the connecting piece; the rear end of a right front connecting plate is rotationally connected with the connecting piece; and the front end of the right front connecting plate is connected with the adjusting seat. According to the light and thin integrated goods shelf display screen, the adjusting seat connected with the front end of the movable seat can be subjected to front-back movement adjustment or left-right movement fine adjustment according to the use requirements of different parts of the display screen, the orientation angle of the adjusting seat can be rotationally adjusted, the position and orientation angle of the display screen are changed, and the use requirements of the different parts of the display screen are met.

The invention provides a spraying device with an anti-solidification function for textile coloring, and relates to the technical field of textile processing. The spraying device comprises a main pipe, a pumping and draining barrel and a pumping and draining plate; a liquid inlet is formed in the right end of the main pipe and communicates with a coloring liquid supply pipeline, and a liquid outlet is formed in the rear side of the left end of the main pipe; the left end and the right end of a supporting seat are connected with manual bolts correspondingly, and the main pipe is connected to the bottom of the supporting seat; the pumping and draining barrel is fixedly installed in the top of the supporting frame and located on the rear side of the main pipe; the pumping and draining plate is located in the pumping and draining barrel; and the front end of the supporting frame is fixedly connected with the main pipe. When a coloring solution in the main pipe stops flowing, a pneumatic part drives the pumping and draining plate to move rightwards, the coloring solution in the main pipe, the spraying pipe and a spraying part is pumped into the pumping and draining barrel, the pneumatic part drives the pumping and draining plate to move leftwards, and the coloring solution is drained through a liquid draining one-way valve, so that the situation that the coloring solution is solidified in the main pipe, the spraying pipe and the spraying part to affect the liquidity of the coloring solution is avoided.

The invention relates to the technical field of stroke drive mechanisms, in particular to a stroke drive mechanism for composite material forming equipment. The stroke drive mechanism comprises a revolution module, wherein the revolution module comprises a bottom plate I, gears II are arranged above the two ends of the top surface of the bottom plate I, and the inner walls of the gears II are fixedly connected to shaft rods II; a gear I is arranged between the two gears II, the inner wall of the gear I is fixedly connected to a shaft rod I, and the bottom end of the shaft rod I and the bottom end of one shaft rod II are rotationally connected to a rotating seat. According to the invention, through the arrangement of the revolution module and a lifting module, the output shaft can revolve under the driving of the revolution module while rotating, and can lift up and down under the driving of the lifting module, so that the output shaft can drive a stirring rod to fully mix and stir raw materials; through the arrangement of a slide block, the revolution radius of the output shaft in an output arm is changed to better adapt to a stirring container, the periphery of the inner wall of the stirring container is mixed, and dead angles are avoided.