13results about How to "Adjust speed" patented technology

The application discloses a geothermal energy adjustable power generation system based on carbon dioxide working medium, which comprises a power generation well, a temperature and pressure adjusting device connected through a pipeline, a gas-liquid heat exchange device connected with the temperature and pressure adjusting device at one end and connected with a steam superheating device at the other end, a heat supply device and a turbine arranged on the steam superheating device, a power generation device connected with the turbine, the power generation device connected with the gas-liquid heat exchange device through a pressure adjusting device, a plunger pump connected with a recharging well at one end and connected with the gas-liquid heat exchange device through a refrigeration device at the other end. The system can further heat the carbon dioxide working medium after being converted into steam, thereby improving the temperature and pressure of the steam and the power generation efficiency of the turbine. Moreover, the output of the heat supply device is adjusted, the rotating speed of the turbine and the output power of the power generation device are adjusted, the adjustability of the power generation capacity is realized, and the defect of the vacancy of the technology in China is solved.

The invention discloses a light-weight lithium battery diaphragm with high heat resistance and high wettability and a preparation method thereof.The light-weight lithium battery diaphragm with high heat resistance and high wettability comprises a base membrane and a coating on the base membrane, and the coating comprises porous aluminum oxide, carboxymethylated nanocellulose, acetylated nanocellulose, polyurethane, sodium hexametaphosphate and ammonium polyacrylate; the porous aluminum oxide, the carboxymethylated nanocellulose, the acetylated nanocellulose, the polyurethane, the sodium hexametaphosphate and the ammonium polyacrylate cooperate to improve the liquid absorption rate, the liquid retention rate, the peel strength, the ionic conductivity, the heat resistance and the wettability of the diaphragm, and meanwhile, the water content of the diaphragm is reduced. The density of the porous aluminum oxide, the carboxymethylated nanocellulose and the acetylated nanocellulose is relatively low, so that the diaphragm is light in weight.

The utility model discloses a drying and cooling production line for a water-soluble compound fertilizer, which comprises a drying cylinder and a cooling cabinet, a conveying belt is arranged in the cooling cabinet, and a receiving hopper positioned above the conveying belt is arranged at one end, close to the drying cylinder, of the cooling cabinet. A spreading device and a cooling fan are sequentially arranged at the upper end of the cooling cabinet in the conveying direction of the conveying belt. A supporting frame is arranged at the lower end of the drying cylinder, a rotating cylinder is coaxially and rotatably arranged in the drying cylinder, and the outlet end of the rotating cylinder is arranged above the receiving hopper; an airflow cavity is arranged between the inner wall of the drying cylinder and the outer wall of the rotating cylinder in a non-contact mode, a plurality of air holes are evenly distributed in a cylinder body of the rotating cylinder, a heat supply pipeline communicated with the airflow cavity is arranged at the lower end of the drying cylinder, and the heat supply pipeline is connected with a hot air pump. The dried compound fertilizer is automatically driven by the conveying belt to pass through the spreading device and the cooling fan to be cooled, so that drying and cooling are automatically carried out, and the production efficiency of a compound fertilizer production line is improved.

The utility model relates to a stepless speed change and regulation device for a fan of a harvesting machine, a speed regulation fan and the harvesting machine, the stepless speed change and regulation device for the fan of the harvesting machine comprises a driving part, a push rod assembly, an adjusting pull rod, an abutting part and a connecting sleeve, and the connecting sleeve is sleeved on the adjusting pull rod and is in threaded connection with the adjusting pull rod; the connecting sleeve is rotationally connected with one end of a push rod assembly, the other end of the push rod assembly is rotationally connected to the fixing part, and the middle of the push rod assembly is connected with an abutting part used for abutting against the side, away from the fixed disc, of the movable disc. The driving end of the driving part is connected with the adjusting pull rod and drives the adjusting pull rod to rotate. The adjusting pull rod drives the connecting sleeve to drive the push rod assembly to swing so as to drive the abutting part to axially move along the movable disc. By means of the lever principle, the push rod combining piece swings around the hinge point on the fixing part, the abutting piece is driven to push the movable disc to be close to the fixed disc or the movable disc automatically returns under the action of the tensioning belt after automatic returning, automatic adjustment of the gap between the fixed disc and the movable disc is achieved, and then the rotating speed of the draught fan is adjusted.

The utility model discloses a mechanical speed regulating device of a drill rod power tong, which belongs to the field of drill rod power tong equipment and comprises a base, the power tong is arranged above the base, a positioning disc is mounted on the base, the power tong is rotatably connected onto the positioning disc, a transmission disc is arranged below the positioning disc, and the transmission disc is rotatably connected onto the base. A rotating disc is coaxially and rotationally connected into the transmission disc; a plurality of arc-shaped grooves are formed in the rotating disc, strip-shaped holes corresponding to the arc-shaped grooves are formed in the transmission disc, positioning rods are jointly connected in the strip-shaped holes and the arc-shaped grooves in a sliding mode, moving blocks are connected in the strip-shaped holes in a sliding mode, the moving blocks are fixedly connected with the positioning rods, and a mounting frame is fixedly connected to the base. A motor is mounted in the mounting frame; through cooperative use of all the devices, the purposes of speed regulation and driving can be achieved through one driving source.

This invention relates to the field of photovoltaic cable manufacturing technology, specifically to a production device for photovoltaic cables, comprising a housing with outlet holes and several inlet holes on the side wall of the housing, and a take-up assembly and a pay-off assembly outside the housing; a fixed cylinder is fixedly connected inside the housing, and a rotating cylinder is sleeved on the outside of the fixed cylinder, with several wire-passing grooves on the side wall of the rotating cylinder; a first drive assembly is also provided inside the housing, and the first drive assembly is signal-connected to an intelligent system; a traction assembly is provided inside the rotating cylinder, and a limiting assembly is provided inside the fixed cylinder; a disc is fixedly connected to the rotating cylinder, and several wire-passing holes are provided on the disc, each wire-passing hole having a detection groove, and a detection block is slidably connected in each detection groove, with each detection block equipped with a pressure sensor. This invention, by designing a component capable of pre-paying wire to assist in pay-off, and combining it with a stranding force acquisition and analysis system, achieves control over pay-off tension and stranding force, improves the final conductivity of the conductor, and improves the overall quality of the produced cable.

The utility model relates to an automatic crankshaft polishing device based on self-adaptive pressure control, which belongs to the technical field of machining and particularly comprises a machine tool body, a polishing frame guide rail is mounted on the machine tool body, and a polishing belt component is mounted on the polishing frame guide rail; the polishing belt assembly comprises a fixing clamp, a polishing frame and a polishing belt, the polishing frame is installed on the polishing frame guide rail through the fixing clamp, a pressure detection device is installed on the polishing frame, the polishing belt is installed on the pressure detection device, and a laser scanner is further installed at the front end of the polishing frame. The laser scanner and the pressure detection device are respectively used for being connected with a machine tool controller. The polishing device is simple in structure, convenient to use and capable of monitoring the polishing force in real time and dynamically adjusting the feeding amount according to the annular force measurement sensor.

The utility model discloses an automatic feeding push rod mechanism which is used for solving the technical problem that parameters such as the material pushing speed, the material pushing distance and the material pushing force cannot be adjusted by an existing push rod using an air cylinder as a driving source. The automatic feeding push rod mechanism comprises a rack, a push module and a push rod connected with the push module. The pushing module comprises a motor, a driving wheel, a driven wheel and a transmission belt; the driving wheel and the driven wheel are installed at the two opposite ends of the machine frame respectively, and the driving wheel and the driven wheel are connected through the transmission belt. The motor is connected with the driving wheel, and the push rod is connected with the transmission belt.

This invention discloses a servo motor-ultrasonic vibration composite stamping device and method for bipolar plate forming. The device includes a frame, a servo drive mechanism, a double-sided lead screw transmission mechanism, a whole-machine guide mechanism, a moving crossbeam, an ultrasonic vibration mechanism, and a punch and die. This invention uses dual servo motors to drive the double-sided lead screw mechanism to move the moving crossbeam and punch vertically, facilitating the adjustment of displacement, speed, and action sequence during the forming process. It is suitable for parameter setting and process control in bipolar plate forming experiments. Introducing ultrasonic vibration into the bipolar plate stamping process allows the punch to superimpose high-frequency vibration during pressing, which helps reduce forming force and provides a device basis for studying the influence of ultrasonic vibration on the bipolar plate forming process. This invention combines the servo drive structure, ultrasonic vibration mechanism, punch, and die into the same device, facilitating bipolar plate forming and ultrasonic-assisted forming related experiments, and is suitable for process parameter adjustment and forming process research.

The application discloses an electric tool. The electric tool comprises a trigger switch installed on a holding part, the trigger switch being used for controlling the start and stop of a motor; a mode switching switch installed on the outer surface of a shell and used for switching the working mode of the electric tool, the working mode comprising a first working mode and a second working mode; when the mode switching switch is in a first state, the electric tool is in the first working mode; when the mode switching switch is in a second state, the electric tool is in the second working mode; in the first working mode, the control parameters of the motor comprise a first start parameter and a first brake parameter for controlling the start and stop of the motor; in the second working mode, the control parameters of the motor comprise a second start parameter and a second brake parameter for controlling the start and stop of the motor; the first start parameter is different from the second start parameter, and the first brake parameter is different from the second brake parameter. The application can facilitate the user to adjust the rotating speed of the motor according to the user's own preference, thereby improving the user experience.

The application relates to the technical field of anemometer metering, and provides an anemometer metering device and a metering method thereof. The anemometer metering device comprises an anemometer mounting structure, the anemometer mounting structure can rotate around a rotating base axis, a standard anemometer and an anemometer to be calibrated can be simultaneously mounted on the anemometer mounting structure; and a rotating driving mechanism is in transmission connection with the anemometer mounting structure to drive the anemometer mounting structure to rotate. The anemometer metering device has the advantage that the anemometer calibration can be completed without a wind tunnel and a blower.

The invention discloses a surface grinding machine hydraulic drive ball screw pair feeding device which comprises a grinding head body installed on a dragging plate in a sliding mode, and a manual feeding mechanism and an automatic feeding mechanism are arranged at the front end and the rear end of the dragging plate respectively. The manual feeding mechanism comprises a hand wheel, a push-pull rod and a bearing assembly, the push-pull rod is installed in an inner bearing sleeve of the bearing assembly, a key and a key groove are in sliding fit between the push-pull rod and the inner bearing sleeve, and the hand wheel is installed on the inner bearing sleeve; the automatic feeding mechanism comprises a driving shaft arranged in a gear box, a large gear I and a small gear I are mounted on the driving shaft, an oil motor connected with the driving shaft is mounted on the gear box, a sliding gear shaft is arranged in the gear box, the gear shaft is connected with the push-pull rod through a transmission rod, and a small gear II capable of being meshed with and separated from the large gear I is arranged on the gear shaft; a ball screw is arranged between the gear box and the grinding head body, the ball screw is installed in the gear box, a large gear II meshed with the small gear I is installed on the ball screw, and a nut screwed with the ball screw is installed on the grinding head body.