37results about How to "Run precisely" patented technology

The invention discloses an automatic seedling feeding device of a pot seedling transplanting machine for dry land vegetables. The automatic seedling feeding device is used for solving the problem that the research and development of a set of the automatic seedling feeding device are extremely urgent due to high intensity of a manual seedling feeding manner. The automatic seedling feeding device comprises a stander assembly, a sliding rail assembly, a chain transmission mechanism, a parallel graduation cutter, a transverse box moving assembly, a seedling box assembly, a longitudinal seedling feeding assembly and a seedling pressing disc assembly, wherein a sliding sleeve of the transverse box moving assembly sleeves a double helix shaft, and a guiding block is arranged in the sliding sleeve; a connecting shaft is connected with the sliding sleeve through a connecting plate; two main bracket plates of the seedling box assembly are fixed with the connecting shaft; a pressing plate shaft of the longitudinal seedling feeding assembly is hinged with the two main bracket plates; two ends of a chain wheel shaft are respectively hinged with two main bracket plates, and one end of the chain wheel shaft stretches out of the main bracket plates and is connected with an adjusting device; a catch pawl is hinged with the main bracket plates; two big chain wheels are respectively connected with the chain wheel shaft through keys and are sleeved with nylon chains; all chain pin shafts of the nylon chains stretch out of a chain plate on the inner side. The automatic seedling feeding device can realize a full-automatic seedling feeding manner and can be matched with a seedling fetching mechanism.

The invention relates to a train ticket automatic inquiry ticket machine and an operating procedure thereof. A power supply, a mono-chip computer, an optical mark reader and a ticket printer are installed in a cabinet type chassis; a keyboard, a paper card input port of an optical mark reader, a screen, a non-contact IC card imprinter and a ticket printer drawn port are arranged on the front surface of the cabinet type chassis; an inquiry ticket purchasing complete paper card matched to the optical mark reader is provided with information strips and squares as well as information squares for selecting date, train numbers, starting and terminal stations and seats, etc. of the ticket purchasing. The screen displays the inquired information after the passenger blackens the small information squares with a black pen and inserts the card into the optical mark reader input port; the passenger gets the booked ticket immediately after the ticket fare is paid by imprinting a card. By adopting the paper card to input information, the train ticket automatic inquiry ticket machine dramatically shortens the time of passengers occupying an automatic ticket vending machine and waiting in line, takes full advantage of rapid working effect of automatic inquiry ticket machine, and can effectively prevent ticket scalpers from scalping tickets. The train ticket automatic inquiry ticket machine can also be applied to ticket selling of road and water transport industry.

The invention relates to a lubricant pump unit (P) for lubricating the cylinders in precise time with the cycle in internal combustion engines (M) such as diesel engines. Said pump unit contains a working piston (22), which drives several metering pistons (25) that are allocated to lubricating point connections and can be driven back and forth in feed and return cycles by means of a working stroke that can be adjusted to meter the supply of lubricating oil, a magnetically actuated control valve (V) being provided in a control oil circuit of the working piston. The working piston (22) is subjected in turn to a hydraulic pressure both in the feed cycle and the return cycle by the control oil circuit.

The invention belongs to the technical field of a shelling device, and particularly relates to a peanut shelling device capable of preventing a screen from being blocked. The peanut shelling device comprises a shell; a rotating motor is arranged at the upper end of the shell; the rotating motor is in transmission connection with a rotating inner shaft; a one-way transmission device is arranged on the rotating inner shaft; the rotating inner shaft is sleeved with an outer pipe; the lower end of the outer pipe is fixedly connected with a shelling cylinder; a shelling plate is arranged in the shell; the shelling cylinder and the shelling plate are provided with extrusion teeth; and a scraping device is mounted at the lower end of a supporting plate. According to the peanut shelling device provided by the invention, the rotating motor rotates forwards to drive the rotating inner shaft to rotate, the rotating inner shaft drives the outer pipe to rotate through the one-way transmission device, drives the shelling cylinder to rotate and is matched with a shelling inclined plate to shell peanuts, and the rotating motor rotates reversely to enable the peanuts to fall out off screen meshes; compared with manual shelling, the peanut shelling device is higher in shelling efficiency and more efficient; and compared with traditional mechanical shelling, the peanut shelling device avoids the defect that shelled peanuts are clamped in the screen meshes, and provides convenience for next peanut shelling.

The invention discloses an automatic seedling feeding device of a pot seedling transplanting machine for dry land vegetables. Artificial feeding of seedlings is intensive, and it is imminent to develop an automatic seedling feeding device. The invention includes a frame assembly, a slide rail assembly, a chain transmission mechanism, a parallel indexing divider, a horizontal moving box assembly, a seedling box assembly, a vertical seedling sending assembly and a seedling pressing plate assembly; the sliding sleeve of the horizontal moving box assembly is set on the double On the screw shaft, the guide block is set in the sliding sleeve; the connecting shaft and the sliding sleeve are connected through the connecting plate; the two main support plates of the seedling box assembly are fixed with the connecting shaft; Hinged; the two ends of the sprocket shaft are respectively hinged with the two main bracket plates, and one end extends out of the main bracket plate to connect with the adjustment device; the ratchet is hinged with the main bracket plate; both large sprockets are connected with the sprocket shaft through a key, And they are all sleeved with nylon chains; all chain pin shafts of the nylon chains protrude outside the inner chain plate. The invention realizes fully automatic delivery of seedlings, and can cooperate with a seedling picking mechanism.

The invention provides a limit trigger type platinum resistance temperature sensor. The limit trigger type platinum resistance temperature sensor is characterized in that a temperature measuring portion and a fusing portion are arranged in a metal protective tube of a temperature measuring probe of the limit trigger type platinum resistance temperature sensor side by side, are filled with heat-conducting temperature-resistant insulating filling materials and are fixed by the aid of the heat-conducting temperature-resistant insulating filling materials, and setting spaces of the temperature measuring portion and spaces of the fusing portion are isolated from one another in an insulated manner by an insulating isolation component. According to the technical scheme, the limit trigger type platinum resistance temperature sensor has the advantages that motor cars or high-speed rail trains still can be subjected to reliable and accurate temperature monitoring and protecting by the aid of the limit trigger type platinum resistance temperature sensor even if a platinum resistance temperature sensing core is in abnormal states such as open circuit, short circuit, flash alarm and false alarm states and the like under the conditions of vibration, impact, rain and disturbance of complicated and versatile electromagnetic fields and even when the platinum resistance temperature measuring core fails.

A voltage detection method for an alternating-current electric tool comprises the following steps: rectifying a voltage sinusoidal signal input by the voltage input end of the alternating-current electric tool, and obtaining a periodic waveform signal; acquiring a voltage value u corresponding to a sampling moment t of the periodic waveform signal in a preset sampling time period; carrying out linear fitting on the acquired voltage value u to obtain a slope k corresponding to the phase of the voltage sinusoidal signal; when the slope k is equal to a preset value, obtaining a phase phi corresponding to the voltage sinusoidal signal at the moment; and obtaining the phase phi of the voltage sinusoidal signal at any moment in a period T by taking the phase phi as an initial phase phi0. According to the voltage detection method, the initial phase and the phase at any moment in the period can be accurately obtained, the invention further provides the alternating-current electric tool applying the voltage detection method, the alternating-current electric tool can drive the motor to operate more accurately, and the problems of phase change errors, driving failures and the like are avoided.

The invention discloses a stepping motor array control system and a control method thereof. The stepping motor array control system comprises a host machine, a controller, a complex programmable logic device (CPLD) driving device, an H-bridge driving chip and a stepping motor array which are connected with one another, wherein the stepping motor array comprises a plurality of stepping motors. The stepping motor array control system can accurately record running information of the stepping motors at the last time and guarantee that the stepping motors run precisely according to a control instruction during switching; the CPLD driving device is used for expanding the number of accessed stepping motors, a switching relay is avoided, and the cost of the whole system is reduced; furthermore, a phenomenon of short circuit caused by synchronously starting of an upper bridge and a lower bridge of a driving circuit can be avoided; and the CPLD driving device is used for finishing logic switching and controlling a plurality of paths of stepping motors to work at different times or at the same time. The stepping motor array control system also has the advantages of low cost, convenience in operation and the like.

A driver (100; 200) for driving a dimmable load (L) is powered from phase- cut mains (U1) and determines the dimming state of the load on the basis of the phase of the cutting of the mains. The driver comprises: a load current generating device (130; 230) generating load current; a controllable auxiliary load (170; 270) connected to an input (131; 231) of the load current generating device; a control device (140; 240) controlling the auxiliary load. The control device has an input (141; 241) receiving a signal indicating the momentary voltage at the driver input. The load current generating device generates interrupted current pulses, so that the average output current corresponds to the dim command reflected by the phase cutting angle of the input mains. The control device switches the auxiliary load on during those time periods when the output current generated by the load current generating device is zero.

The invention discloses a precise position adjustment device, which comprises a mounting seat, a workbench, a transmission mechanism and a driving mechanism. One end of the shaft is fixedly connected to the workbench, and the other end is fixedly passed through the mounting plate and pivotally connected to the mounting seat. The plurality of transmission wheels are symmetrically distributed around the transmission shaft, and the drive wheels and the transmission wheels are located on the same plane. The radius of rotation of the workbench is greater than that of the drive wheel. The precise position adjustment device is easy to assemble and easy to maintain and replace. The drive wheel drives the mounting plate with the drive wheel fixed at the corner to rotate, thereby driving the workbench to rotate, so that the drive wheel and the workbench have the same linear speed and at the same time make the workbench It has a small angular velocity relative to the driving wheel, so that the table can run smoothly, accurately, and at a small angle. The invention also discloses a semiconductor on-line detection system with the device.

The invention relates to an automatic doffing and transferring device for filament production. The device comprises a transverse sliding table, two longitudinal sliding tables and a forward-backward sliding table which are all equipped with closed dust-proof electric sliding table cylinders, wherein the transverse sliding table is arranged between the two longitudinal sliding tables; the forward-backward sliding table is arranged on the transverse sliding table; a servo, a connecting rod and a coupling which are connected in match are arranged between the longitudinal sliding tables. According to the device, the automation is realized, so that the labor intensity of workers can be reduced, the product quality can be improved, and the production cost is decreased.

A lubricating oil pump unit (P) for lubricating cylinders of an internal combustion engine, such as a diesel engine, comprising a working piston (22) normally driving a metering piston (25) associated therewith. The above-mentioned working piston (22) reciprocates in the mode of continuous conveying process and return stroke, and is used for quantitative supply of lubricating oil. A solenoid-actuated control valve (V) is equipped in a control oil circuit for the working piston. The above-mentioned working piston (22) is hydraulically driven by the oil circuit of the above-mentioned control oil to complete the above-mentioned delivery process and return stroke.

The invention is directed firstly at a disc-rotor generator for generating electrical energy from the rotation energy of a power installation which is driven in rotation, preferably a continuous-flow power installation, in particular a wind power installation, having at least two stator components which are axially offset in relation to one another along an approximately horizontal rotation axis of the disc rotor, and having at least one ring- or disc-like rotor component of the disc rotor, which rotor component is mounted between said stator components so as to rotate about the rotation axis, having an input-end connection for a gear mechanism, preferably a step-up gear mechanism, in particular a planetary gear mechanism, wherein the output shaft of said gear mechanism, in particular the sun gear of said gear mechanism, which runs coaxially to the rotation axis of the disc rotor is coupled to at least one ring- or disc-like rotor component of the disc rotor, wherein the roller bearing which is associated with a ring- or disc-like rotor component of the disc rotor is in the form of an angular ball bearing or is formed with angular ball bearings, for example with a supporting angle of between 40° and 50° in relation to the rotation axis, preferably in the form of a two-row angular ball bearing, in particular as a two-row angular ball bearing in O-arrangement; and secondly at a wind power installation which is equipped with said disc-rotor generator.

The invention discloses a universal joint bell-shaped shell and a machining process. The shell mainly comprises a bell jar section, a first cylindrical segment, a spline segment and a second cylindrical segment, wherein the joint between the first cylindrical section and the second cylindrical section is provided with a smooth rounded corner transition, the material used by the bell-shaped shellcomprises the following components of, by percentage, 54%-68% of Fe, 1.5%-1.8% of Cr, 1.4%-1.7% of Ni, 0.15%-0.21% of C, less than or equal to 0.4% of Si, 0.5%-0.9% of Mn, less than or equal to 0.025%of P, less than or equal to 0.035% of S, 0.25%-0.35% of Mo, the balance impurities, and a blank of the bell-shaped shell is prepared by adding powder of the C, the Si, the Mn and the Mo during drawing and hot forging on a mixed matrix prefabricated by the Fe, the C, the Cr and the Ni. According to the shell, the structure is simple, the hardness is large, meanwhile, the self-lubricating propertyand the wear resistance are achieved, forming grinding is adopted, so that the machining precision on a spherical surface is greatly improved, the running precision is improved, and the service life of the shell is greatly prolonged through a blank drawing and forging forming technology and heat treatment.

The invention discloses a dynamic decorative clock. The dynamic decorative clock is provided with a clock generator, a driving stepping motor, an hour pointer, a minute hand, a rack, an auxiliary support and a drive system. The drive system is fixed to the rack through the auxiliary support. The drive system is provided with a first bevel gear, a second bevel gear, a third bevel gear, a first cylindrical gear, a second cylindrical gear, a third cylindrical gear, a fourth cylindrical gear, a fifth cylindrical gear, a sixth cylindrical gear, a seventh cylindrical gear, an eighth cylindrical gear, a ninth cylindrical gear, a tenth cylindrical gear, an eleventh cylindrical gear and a twelfth cylindrical gear. The structure of a traditional lamellar overlapped drive system of a clock is unfolded into a double-layer plane or a space stereoscopic structure, the projection of which on a plane is not overlapped, the drive system of the clock can be clearly displayed, accurate running of the minute hand and the hour pointer is guaranteed, the timing accuracy of the clock is guaranteed, and the drive beauty of a dynamic mechanical system can be shown.

The refrigerator provided by the present invention comprehensively judges the operating load state of the refrigerator from the operating state of the compressor, the set temperature of each storage room, etc., and displays the operating load state, thereby reporting the more accurate operating state of the refrigerator to the user. In S1, the load level A is calculated from the set temperature of each storage room. After the load levels are calculated in S1 to S5, the total of the load levels A to E is calculated as the load level α of the refrigerator (S6). When the load level α is 3 or more, it is determined that the operating load state is "large" (S13).

The invention relates to an automatic loading machine and a process thereof. The automatic loading machine comprises a machine frame. A guiding rail frame is arranged at the bottom of the machine frame. Guiding rails guiding from front to back are arranged on the both sides of the guiding rail frame. A substrate moving along the guiding rails is arranged on the guiding rail frame. A plurality of roll shafts arranged in the left-right direction are evenly distributed on the upper portion of the machine frame. Sliding rails guiding from front to back are arranged on the substrate. A base moving along the sliding rails is arranged on the substrate. Rotary shafts driven by a motor to rotate are arranged on the base. Racks guiding from front to back are arranged on the two sides of the substrate. The two ends of the rotary shafts are all provided with gears engaged with the racks. The automatic loading machine is simple in structure, sturdy and durable.