34results about How to "Realize automatic speed regulation" patented technology

The invention provides a household parking garage with a direct-current motor. The household parking garage comprises a garage framework, a parking platform, a storage battery E, a power module, a damping power generation module and a lifting control module; the storage battery E supplies working power supply to the power module, the damping power generation module and the lifting control module; the power module and the damping power generation module are in line connection with the lifting control module; the parking platform is connected with the garage framework; the power module drives the parking platform to move on the garage framework; when the parking platform declines, the damping power generation module generates resistance opposite to the declining direction of the parking platform; and simultaneously, gravitational potential energy is converted into electrical energy and stored in the storage battery E. Declining is carried out by utilizing self gravity of the garage and an automobile; the gravitational potential energy is converted into electrical energy and stored; consumption of power electricity is supplied; the purpose of saving energy is achieved; the damping power generation module generates the resistance opposite to the gravity direction while generating power; and thus, the problem that the garage is impacted due to the fact that the declining speed of the parking platform is too rapid because of the gravity action can be avoided.

The invention discloses a method and a controller for controlling the position, the pressure measurement and the safe control of a sliding block of a forging machine tool. By the method, the position detection and the pressure monitoring of the sliding block are integrated into a whole; meanwhile, the position and the pressure of the sliding block can be acquired; the position corresponds to the pressure to obtain a position-pressure curve according to the time; the position-pressure curve obtained by multiply acquiring position and pressure data during normal processing is set to be a standard curve; the quality of products can be controlled and production personnel are prompted to find the reasons of faults by using the curve; the controller carries out double-circuit output on control output; double circuits are connected in series; and the controller transmits a control signal to a motor of a numerical control machine tool and automatically adjusts the motor speed according to preset value. The invention integrates the position monitoring of the sliding block and the pressure monitor of the machine tool into a controller and realizes multifunctional control by combining automatic speed regulation, alarm and the like; meanwhile, the invention realizes the quality control of products and the safe and accurate control of the machine tool.

The invention discloses a tire crane auxiliary system and a control method. The tire crane auxiliary system comprises a single-cylinder bolt control valve, an auxiliary arm variable-amplitude oil cylinder, a control cabin variable-amplitude oil cylinder and an air conditioner motor, a constant-pressure pump is connected with a two-position two-way valve, and an oil outlet of the constant-pressurepump is connected with the first priority valve; the first priority valve is respectively connected with the single-cylinder bolt control valve and a second priority valve, the second priority valve is respectively connected with an electric proportional three-position four-way valve II and a third priority valve,the third priority valve is respectively connected with an electric proportional three-position four-way valve III and an electric proportional two-position two-way valve IV, and the electric proportional two-position two-way valve IV is connected with the air conditioner motor. According to the present invention, different priorities are set for all the auxiliary actions, several actions can be controlled at the same time, but also the flow can be preferentially supplied to the system with the high priority. The beneficial effects are that the flow priority distribution can be better realized, so that the multi-action compounding is realized; the automatic speed regulation ofthe actions, such as fly jib amplitude variation, control cabin amplitude variation, air conditioning, etc., is realized; the responsiveness of the system is improved, and the waste of the redundantflow is avoided.

The invention relates to the field of household electrical appliances, and discloses a household automatic speed-regulating mixer and a control method thereof, which solves the problem that the existing household mixer cannot perform automatic stepless speed regulation and is not intelligent enough. The mixer includes a controller, a motor and a ranging module, the ranging module and the motor are electrically connected to the controller; the ranging module is used to detect the distance information of the detection area on the inner wall of the mixer container and transmit the detected distance information to the controller The controller is used to establish a model for calibrating the detection area by using the distance information detected by the ranging module when the mixer system is started. After the system is started, the distance information detected by the ranging module is compared with the model to judge the mixer container. Whether the edge height of the content in the container reaches the lower limit height of the detection area, if so, the control motor maintains the current speed, if not, the control motor increases step by step until the upper edge height of the content in the mixer container reaches the lower limit height of the detection area.

The invention relates to a load-carrying vehicle, i.e. an electric truck. Power output shafts of motors (1) drive driving wheels (4) through speed changers (3); and the electric truck is characterized in that clutches (2) are arranged between the power output shafts of the motors (1) and the speed changers (3). The electric truck has the beneficial effects that rigid driving is changed into flexible driving, so that automatic speed adjustment is realized; when the electric truck is started or passes through a ridge, the rotating speed can be automatically reduced, and the traction is increased, so that the capacity of crossing an obstacle is obviously improved; the specification of the same type of motor is substantially reduced, the working performance is stable and reliable, and the engine is not liable to stop; and the electric truck is particularly suitable for high-load transportation such as a mine.

The invention relates to a speed regulation method based on the PID algorithm for an engine cooling fan. An electronic control unit (ECU) of an engine controls the rotation speed of the cooling fan. The method includes the steps that 1, in the running process of an automobile, a temperature sensor of engine coolants transmits temperature signals of the engine coolants to the ECU of the engine; 2, the temperature signals are processed by the ECU of the engine, and the ECU of the engine outputs control signals to a PID controller; and 3, the PID controller regulates the rotation speed of a drive motor according to the received control signals, the drive motor changes the rotation speed of the cooling fan, and a cooling fan sensor collects the rotation speed information of the cooling fan and feeds back the rotation speed information of the cooling fan to the ECU of the engine. According to the method, the speed of the cooling fan can be automatically regulated.

The invention relates to the field of transmission devices mainly comprising teeth or friction pieces, connecting rods or levers and cams or at least comprising two elements in the three types, in particular to a transmission device capable of automatically adjusting speed and an application method thereof. The transmission device capable of automatically adjusting speed comprises a driving shaft (1) and a driven shaft (2), and is characterized by further comprising a transmission wheel (3), an output shaft (4) and a bracket (6); a driving transmission surface (12) and a driven transmission surface (22) are oppositely arranged; the bracket (6) coats the driven shaft (2); at least one pair of transmission wheels (3) is arranged between the driving shaft (1) and the driven shaft (2); and the outer side surface of a transmission turntable (32) is respectively in rolling contact with the driving transmission surface (12) and the driven transmission surface (22). The application method of the transmission device capable of automatically adjusting speed is characterized by comprising transmission and adjustment. The transmission device capable of automatically adjusting speed is simple in structure, convenient for use, capable of automatically adjusting the speed and wide in application range.

The invention relates to the field of milling engineering machinery, in particular to a ball milling machine. An automatic speed regulation system for the ball milling machine comprises a ball milling machine main body, a strain transducer, and a wireless signal receiving module; the ball milling machine main body is connected with an electric motor; the ball milling machine main body is providedwith a ball milling machine cover; the outer side of the bottom of the ball milling machine cover is directly contacted with the interior of the ball milling machine main body; the strain transducer is connected with a signal processing circuit; the signal processing circuit is connected with a wireless signal emission module; the wireless signal receiving module is connected with a speed regulation signal circuit; the input end of the speed regulation signal circuit is also connected with a rotation speed detection device; the speed regulation signal circuit is connected with a speed regulator; and the speed regulator is connected with the electric motor. An automatic speed regulation method for the ball milling machine comprises the following steps of: 1) acquiring data; 2) processing and analyzing the data; and 3) regulating the speed and controlling. The speed regulation system has a simple structure and can fulfill the aim of automatic grinding, and by the speed regulation method, the working efficiency of the ball milling machine can be effectively improved.

The invention relates to the field of transmission devices mainly comprising teeth or friction pieces, connecting rods or levers and cams or at least comprising two elements in the three types, in particular to a stepless speed change device capable of automatically adjusting a motion state and an application method thereof. The stepless speed change device comprises a driving shaft (1) and a driven shaft (2), and is characterized by further comprising a transmission wheel (3) and a bracket (6); the driving shaft (1) includes a driving shaft body (11) and a driving transmission surface (12); the driven shaft (2) includes a driven shaft body (21) and a driven transmission surface (22); the bracket (6) coats the driven shaft (2); and at least one pair of transmission wheels (3) is arranged between the driving shaft (1) and the driven shaft (2). The application method of the stepless speed change device capable of automatically adjusting the motion state is characterized by comprising transmission and adjustment. The stepless speed change device is simple in structure, convenient for use, capable of automatically adjusting the speed and wide in application range.