30results about How to "Move forward at a constant speed" patented technology

The invention provides a method for showing a progress bar. The method comprises the following steps of: calculating a finish time of a task; setting a constant-speed region in the progress bar corresponding to the task, wherein the length of the constant-speed region is over half the total length of the progress bar; and controlling the progress bar to move forward at a constant speed in the constant-speed region according to the finish time of the task. By the method, the progress bar can move forward smoothly at the constant speed, so the problems that the progress bar has to wait for the finish of a subtask and stops moving forward, and the progress bar moves forward alternatively between slow and fast under most conditions can be solved.

The invention provides a vehicle speed control method used for an electric vehicle. The method specifically includes the steps that the target vehicle speed is obtained; the current vehicle speed of the vehicle is obtained; the early warning vehicle speed smaller than the target vehicle speed is set according to the target vehicle speed; and a response is made when the current vehicle speed exceeds the early warning vehicle speed, and the motor output torque of the vehicle is controlled to be reduced, so that the current vehicle speed of the vehicle is stabilized at the target vehicle speed. The invention further provides a vehicle speed control system capable of achieving the provided vehicle speed control method and the electric vehicle. The motor output torque is controlled so that thevehicle speed can be controlled, the vehicle speed is stabilized at an expected value, traveling safety can be guaranteed, and meanwhile the driving and riding experience feeling is not reduced.

The invention provides a progress bar setting method including the following steps of calculating task finishing time, arranging a constant speed interval in a progress bar corresponding to a task, wherein the constant speed interval accounts for more than half of the total length of the progress bar, and controlling the progress bar to move forward in the constant speed interval at a constant speed according to the task finishing time. By means of the progress bar setting method and device, the progress bar can move forward smoothly at a constant speed, and the problems that the progress bar stops moving in the moving process due to the fact that the progress bar waits until subtasks are finished, and the moving speed of the progress bar is not constant on most situations are solved.

The invention discloses an experimental table propelling hydraulic system of a hard rock boring machine. The experimental table propelling hydraulic system comprises an oil feeding pipeline, wherein one end of the oil feeding pipeline is communicated with an oil tank; the other end of the oil feeding pipeline is sequentially connected with a filter, a constant delivery pump, a one-way valve and a stop valve; an oil outlet of the stop valve is connected with a first opening of a three-position four-way electro-hydraulic servo valve; a fourth opening of the three-position four-way electro-hydraulic servo valve is connected with inlets of first, second, third and fourth one-way proportional pressure reducing valves; each of oil outlets of the first, second, third and fourth one-way proportional pressure reducing valves is connected with a pressure sensor and a rodless cavity of a propelling cylinder; rod cavities of four propelling cylinders are connected with a third opening of the three-position four-way electro-hydraulic servo valve respectively; a displacement sensor is arranged in each of the four propelling cylinders; and a second opening of the three-position four-way electro-hydraulic servo valve is connected with the oil tank. With the adoption of the system, main beam constant-speed propelling can be realized, unbalance loading is restrained when the main beam is loaded in an unbalanced mode, and steering is matched when the main beam is steered.

The invention relates to a continuous frying device of potato flake/chip, comprising a frame and a frying pan, wherein the cover body on upper part of the frying pan is provided with a smoke outlet, and the continuous frying device of potato flake/chip is characterized in that the exterior of the frying pan is equipped with a heating oil path system, the interior of the frying pan is spacedly equipped with a set of rotary vanes, one end of the frying pan is provided with a feeding port while the other end is provided with a discharging port, the discharging port is equipped with a lifting machine and the conveyor mesh belt of the lifting mechanism is extended to the feeding port from the bottom within the frying pan. The continuous frying device of potato flake/chip provided by the invention has the advantages that the structure is simple, the design is scientific and logic, the constant temperature control of oil can be realized, the material can be prevented from adhering, the time of frying can be accurately controlled, the continuous production purpose can be realized and the device is suitable for producing in a large batch of a high-speed production line.

The invention relates to a PVC decorative sheet drying device. The PVC decorative sheet drying device comprises a substrate, a protective cover and heaters; the protective cover is a cavity of which the bottom is opened; the protective cover is connected to the upper portion of the substrate in a covering manner; a plurality of heaters are arranged inside the cavity of the protective cover; a transporting structure for moving a PVC decorative sheet is arranged inside the substrate; a cooling structure is arranged inside the protective cover; one side of the protective cover is provided with afeeding opening for the PVC decorative sheet to enter the protective cover; and the other side of the protective cover is provided with a discharging opening for the PVC decorative sheet to leave awayfrom the protective cover. The PVC decorative sheet drying device provided by the invention has the beneficial effects that the cooling structure is arranged inside the protective cover so that the PVC decorative sheet can be effectively prevented from being damaged due to baking at a high temperature.

The invention discloses a controller and a control method of a single-phase direct-current permanent magnet brushless motor used by a near space airship motor power system. The controller comprises aposition signal acquisition module, a pulse duty ratio calculation module, a pulse switching module and a pulse output module. The position signal acquisition module is connected with the pulse switching module, the pulse output module is connected with the pulse duty ratio calculation module and the pulse switching module, the pulse output module comprises two timers, the two timers respectivelygenerate two paths of pulse square waves, and the duty ratio of the pulse square waves output by the timers is adjusted according to the pulse duty ratio; and the pulse switching module is used for determining whether to switch the pulse output state or not according to the rotor position information and the current pulse output state. The processor judges the position of the motor rotor by inputting the level signals of the level of the output port so as to control the starting and running of the motor.

The invention discloses a feed feeding device for soft-shelled turtle breeding, which comprises a soft-shelled turtle breeding pond. A top plate is fixedly installed on the top of the soft-shelled turtle breeding pond. A groove is opened on the bottom of the top plate. There is an installation groove on the top, and a push rod motor is fixedly installed on the inner wall of the installation groove away from the notch of the installation groove. The output shaft of the push rod motor is welded with a first connecting rod, and the first connecting rod is far away from the One end of the push rod motor is welded with a fixed rod, and the end of the fixed rod away from the first connecting rod is clamped with a moving block, the moving block is slidably connected with the groove, and the bottom of the moving block is welded with a second connecting rod. The invention is easy to use. By placing the soft-shelled turtle feed on the filter net in the feeding hole, and then starting the push rod motor, the push rod motor drives the moving block to move, so that the soft-shelled turtle feed can be evenly put into the soft-shelled turtle breeding pond, and the operation Simple.

The invention discloses processing equipment for woodware, which is characterized in that: an upper connecting plate is coupled with three upper rollers; a lower connecting plate is coupled with lower rollers which have the same number as the upper rollers and correspond to the upper rollers one to one; a longitudinal pressing plate device is arranged on the same worktable at an inlet end or an outlet end and consists of at least two left rollers and at least two right rollers; and a coating groove is formed on each roller. The invention has the advantages that: the equipment can press the horizontal and vertical surfaces of the woodware, and has a shaping effect on a floor simultaneously, the processing quality of the equipment is ensured, the equipment can paint the woodware while rolling the woodware, a paint can fully infiltrate into pipe holes of the woodware due to friction between the rollers and the surface of the woodware, and can be adhered to the surface of the woodware more firmly, and higher sealing property is achieved.

The invention relates to a forming mechanism of a PVC plate. The forming mechanism comprises a mixer, an extruder, a feeder, a mold, a laminating calender, a tractor and a plate shearing machine whichare sequentially connected end to end, wherein the laminating calender and the tractor are connected through a bracket; a material uniformizing device is arranged between the feeder and the mold andused for uniformly spreading materials discharged from the feeder; a drying device is arranged on the front section of the bracket and used for drying the plate output from a discharge port of the laminating calender; a trimming and slitting device is arranged on the rear section of the bracket and comprises two side guide plates which can get close to or away from each other and a trimming mechanism; the side guide plates are used for centering and guiding before trimming of the PVC plate; and the trimming mechanism is used for symmetrically cutting two side edges of the PVC plate. The forming mechanism has the benefits as follows: the material uniformizing device spreads and compacts the materials, and the materials have no holes and are uniform after entering the mold; the drying devicecan quickly dry the materials; and the symmetric side guide plates can center and guide the PVC plate, and the trimming mechanism can guarantee cutting symmetry.

The invention discloses a yoga type intelligent scoliosis measuring instrument. The instrument comprises a shell, a main control system, a secondary control system, an electric push rod mechanism, a pressure measuring system, an led display screen and a supporting mechanism. A main control unit comprises an STM32 single-chip microcomputer and a reset button connected with the STM32 single-chip microcomputer. A secondary control unit comprises a 51 single-chip microcomputer and a reset button connected with the 51 single-chip microcomputer. The electric push rod mechanism comprises a potentiometer, a frequency converter, a stepping motor, a gear, a speed reducer and a telescopic rod. After the instrument is started, the STM32 single-chip microcomputer of the main control system receives a signal and drives the stepping motor to work; and the 51 single-chip microcomputer of the secondary control system receives a starting signal at the same time and drives a flexible pressure sensor to work, and the sensor receives a pressure signal and transmits the pressure signal back to the secondary control system, so that intelligent measurement and scoliosis evaluation are achieved.

The invention relates to the technical field of stationery, and discloses transmitting equipment for processing roller ball pens, capable of performing automatic fixing and pushing. The transmitting equipment for processing roller ball pens, capable of performing automatic fixing and pushing comprises a first gear, wherein a first toothed bar is movably connected to the top of the first gear; thefirst gear rotates to enable a push rod to move rightwards to a preset position, then the push rod stops moving without influencing the own rotating of the first gear, so that a subsequent grasping operation is facilitated, and the shoving operation cannot be influenced; the push rod moves rightwards to enable a moving block to move upwards to get close to materials, and besides, a second clampingblock on the upper side of the rotating rod is close to the materials to perform joint grasping, so that multi-direction grasping is realized, stable moving of the materials is guaranteed, and subsequent operations are facilitated; and a second rotating disk rotates to enable a second toothed bar to drive a second gear to be in reciprocating rotating, the second rotating disk synchronously rotates, and the materials are sequentially pushed by a first push block and a second push block, so that the uniformity of the pushing frequency is guaranteed, and the materials are advanced at a uniform speed. Through the adoption of the transmitting equipment for processing roller ball pens, capable of performing automatic fixing and pushing disclosed by the invention, space is effectively saved, andhigher working efficiency is achieved.

The invention discloses a potato cleaning device. The device is characterized by comprising a barrel body, supporting legs, a cylindrical cage, conveying ribs, a material collecting bin, a bottom plate, a motor, a speed reducing box and a feeding hopper, wherein the upper end of the cylinder body is in an opening shape, a containing groove is formed in the outer wall of the left side of the barrel body, the feeding hopper is connected to the top of the barrel body, and the three conveying ribs are arranged on the inner side face of a cavity of the cylindrical cage at equal intervals; a support at one end of the cylindrical cage is fixedly connected with a driving short shaft, and a support at the other end of the cylindrical cage is fixedly connected with an auxiliary short shaft; the driving short shaft penetrates through the left side of the barrel body and is arranged on the containing groove through a bearing block, and the end of the driving short shaft is connected with a driven belt wheel; the auxiliary short shaft is arranged on the top of the right side of the barrel body through a bearing block, and the outer wall of the right side of the barrel body is hermetically connected with the material collecting bin and is provided with a discharge opening communicated with the material collecting bin; the output end of the motor is connected with the input end of the speed reducing box, and the output end of the speed reducing box is sleeved with a driving belt wheel; the driving belt wheel is connected with the driven belt wheel through a belt. The device has the advantages of being simple in structure, high in efficiency and low in production cost.

The invention provides a tool clamp for a pipeline laser cutting machine and the pipeline laser cutting machine. The tool clamp comprises a bottom plate, and a grinding wheel is fixedly arranged in a bearing frame; a cleaning sponge is embedded in a clamping groove which is formed in the clamping plate and used for containing a pipeline, a storage box is hinged to a piston shaft of the air cylinder, a marking pen is arranged at the bottom of the storage box in a communicating mode, a linkage rod and a rope winding column are hinged to the interior of the transverse plate, and a marking rope is wound between the linkage rod and the rope winding column. A pipeline defect detector is fixedly arranged at the bottom of the transverse plate; a positioning block is arranged on the nut block in a buckled mode and can drive the pipeline to rotate. According to the tool clamp for the pipeline laser cutting machine and the pipeline laser cutting machine, the end of a pipeline can be polished, whether defects exist in the pipeline or not can be detected, the utilization rate of the pipeline is higher, and the tool clamp is very worthy of popularization.