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37results about How to "Guaranteed to be consistent" patented technology

Four-wheel synchronous automatic lifting regulating mechanism

InactiveCN104025787AOvercoming the defects of the lifting methodEasy to makeTransplantingGear wheelEngineering
The invention relates to a four-wheel synchronous automatic lifting regulating mechanism. The mechanism comprises a sensing assembly, a hydraulic power assembly and a lifting performing mechanism, wherein the lifting performing mechanism comprises a front lifting device and a rear lifting device; a rear wheel driven chain box is driven by a hydraulic cantilever to rotate around a rear axle so as to lift a rear machine body; a chain and chain wheel drive assembly and a toothed wheel and toothed column drive assembly are driven by the hydraulic cantilever so as to lift a front machine body; during work, the height variation of a furrow is changed into shift motion by the sensing assembly and a hydraulic control valve of an oil cylinder is controlled to ensure that the oil cylinder respectively works in three states of oil feeding, oil discharging and pressure maintaining; a piston rod extends or retracts according to the different working states, the front body and the rear body of a transplanter are controlled through the performing mechanism to be lifted simultaneously so as to drive a pair of planting pincers to be lifted at the same time and realize the automatic regulation of planting depth; through the lifting control of a hydraulic automatic lifting mechanism, the uniform planting depth of seedlings is guaranteed in the transplanting process.
Owner:ZAOYANG CITY ZHENGTIAN TRANSPLANTER

Automatic piston feeding machine for variable displacement compressor

ActiveCN103587947AGuaranteed piston placement speedImprove work efficiencyConveyor partsPistonExecute in place
The invention relates to the technical field of machinery, in particular to an automatic piston feeding machine for a variable displacement compressor. The automatic piston feeding machine for the variable displacement compressor comprises a machine frame, a charging tray moving mechanism, a piston jacking mechanism, a charging tray trolley, a piston discharging mechanism, a piston overturning mechanism, and a piston front side and back side inspecting mechanism. The automatic piston feeding machine for the variable displacement compressor is characterized in that the charging tray moving mechanism is arranged in front of the machine frame, the piston overturning mechanism is arranged on the machine frame and is located behind the piston jacking mechanism, the piston discharging mechanism is arranged on the machine frame and is located above the piston overturning mechanism, and the piston front side and back side inspecting mechanism is arranged on the machine frame and is located on the left side of the piston discharging mechanism. Compared with the prior art, the provided automatic piston feeding machine has the advantages that the automatic piston feeding machine is controlled by a PLC in the whole production process, and actions in each process are calculated accurately and executed in place; meanwhile, due to the fact that the piston front side and back side inspecting mechanism is arranged, the piston placing speed is guaranteed, placement faces of pistons are kept consistent, working efficiency is greatly improved, and labor cost is reduced.
Owner:SHANGHAI SANDEN AUTO AIR CONDITIONING

Compensation method for parameters (below base speed) of permanent magnet synchronous motor based on feedforward voltage compensation

The invention relates to a compensation method for parameters (below base speed) of a permanent magnet synchronous motor based on feedforward voltage compensation. The method comprises the following steps: S1, performing calculation to obtain a d-axis current and a q-axis current; S2, obtaining a d-axis current instruction through the calculation of a torque instruction; S3, obtaining two values shown in the description through a current loop PI regulator; S4, calculating two values shown in the description, and respectively calculating the sums of the two values with the two values in step S3to obtain two new values; S5, inputting the two new values in step S4 into a space vector modulation module to obtain six paths of pulses which act on a voltage type inverter control motor; S6, compensating for the q-axis inductor and the d-axis flux linkage, wherein the compensated q-axis inductance and d-axis flux linkage are used for calculation in step S2 and the step S4 in the next calculation period; and the steps S1-S6 are circulated in a reciprocating manner, that is, the output torque of the motor is accurately controlled through the compensation of motor parameters.
Owner:BEIJING JIAOTONG UNIV

Garden fertilization device

The invention provides a garden fertilization device and belongs to the technical field of machinery. The problem in the prior art that garden vegetation can not be fertilized at high efficiency and high utilization rate is solved. The garden fertilization device comprises a rack and a bottom plate, wherein a fertilization mechanism is fixed on the bottom plate and comprises a chemical fertilizer box; the lower end of the bottom plate is hinged to a sealed door; a ditching structure is further fixed on the bottom plate; a land leveling and irrigation mechanism is fixed on the bottom plate and comprises a water tank, a water pump and a nozzle; the land leveling and irrigation mechanism further comprises a vertical air cylinder, a longitudinal air cylinder I, a longitudinal air cylinder II, a transverse air cylinder and a mounting plate; a pushing plate I is fixed at the end part of a piston rod of the longitudinal air cylinder I; a pushing plate II is fixed at the end part of a piston rod of the longitudinal air cylinder II; and the transverse air cylinder is arranged at the other side of the mounting plate in a sliding manner. The garden fertilization device has the advantages that ditching and fertilization can be carried out automatically and fertilized ditches are filled up and irrigated so that the working efficiency and the utilization rate of chemical fertilizers are improved.
Owner:JIAXING VOCATIONAL TECHN COLLEGE

Pressure-adjustable magnetic core bonding tool

The invention relates to a pressure-adjustable magnetic core bonding tool, and belongs to the technical field of magnetic core bonding. The pressure-adjustable magnetic core bonding tool comprises a base, a lower magnetic core groove used for placing a lower magnetic core, a circuit board groove used for placing a circuit board and an upper magnetic core groove used for placing an upper magnetic core plate are sequentially formed in the base from bottom to top, and a positioning window facilitating the placing of the upper magnetic core is formed in the upper magnetic core plate. The upper magnetic core and the lower magnetic core are fixedly arranged on the upper surface and the lower surface of the circuit board in an aligned mode, and a pressing device used for pressing the upper magnetic core and the lower magnetic core is arranged vertically above the upper magnetic core plate. The tool has the beneficial effects that the tool has the functions of positioning upper magnetic core and the lower magnetic core, adjusting the pressure and maintaining the pressure; the positioning of the upper magnetic core and the lower magnetic core can realize that the magnetic cores are aligned and bonded without deviation, the pressure can be adjusted to determine proper pressure in a module test stage, the pressure maintaining function ensures that the pressure is consistent and unchanged in a magnetic core adhesive curing process, the consistency of output parameters of a power supply module can be ensured, and the production efficiency can be improved.
Owner:BEIJING INST OF RADIO MEASUREMENT

Wireless earphone noise reduction calibration method and device, earphone box and storage medium

The invention discloses a wireless earphone noise reduction calibration method and device, an earphone box and a computer readable storage medium. The method comprises the following steps: carrying out on-box detection on the wireless earphone, and when the wireless earphone is in an on-box state, obtaining a first sensitivity from a loudspeaker in a left earphone to a first noise reduction microphone and a second sensitivity from a loudspeaker in a right earphone to a second noise reduction microphone; calculating a first gain of a first noise reduction circuit in the left earphone and a second gain of a second noise reduction circuit in the right earphone by using a difference value between the first sensitivity and the second sensitivity; writing the first gain into the first noise reduction circuit, and writing the second gain into the second noise reduction circuit so as to complete noise reduction calibration. According to the wireless earphone noise reduction calibration methodprovided by the invention, the gain values of the left and right earphone noise reduction circuits are recalculated by using the sensitivity difference between the left and right earphone loudspeakersand the noise reduction microphone, and the calibration of the noise reduction amount of the left and right earphones is realized by adjusting the difference of the gain value balance sensitivity.
Owner:GEER TECH CO LTD

Injection-molding mold lateral parting forced demoulding mechanism scheme

The invention discloses an injection-molding mold lateral parting forced demoulding mechanism scheme. The injection-molding mold lateral parting forced demoulding mechanism scheme comprises a device main body, a seal stamping device arranged inside the device main body and a moving device arranged inside the device main body, and the seal stamping device comprises a first rotating cavity arrangedinside the device main body. According to the injection-molding mold lateral parting forced demoulding mechanism scheme, at present, indispensable mold stamping and stamping of some mold stamping seals and official seals in the daily office are needed, use staff generally all adopt manual stamping to be prone to causing inconsistent stamping depth, attractiveness is affected, furthermore, the efficiency is low, and the invention aims to design the injection-molding mold lateral parting forced demoulding mechanism scheme that automatic seal stamping performed on molded plastic needing the moldstamping can be finished, and needed stamping ink can be replenished appropriately before the seal stamping every time, sufficient absorption is finished through a sponge foam block, a mold stamping block is guaranteed to be capable of being fully stained with the stamping ink, and meanwhile, coincident mold stamping depth and the clear mold stamping in the mold stamping every time can further beguaranteed.
Owner:嘉兴喜格丽服装有限公司

Automatic screw locking machine system

The invention discloses an automatic screw locking machine system. The automatic screw locking machine system comprises a base, a smooth cavity penetrating front and back is formed in the base, first mounting blocks symmetrical in position are fixedly arranged on the left wall and the right wall of the smooth cavity, first sliding grooves with openings facing the symmetry center are formed in the first mounting blocks, and the first sliding grooves are slidably connected to first sliding blocks. According to the system, a controllable screw locking position adjusting device is arranged, the required screw locking position can be independently selected according to the requirement, a positioning device capable of conducting left-right positioning is arranged, the requirement for locking screws on different workpieces through the screw locking machine can be met, a screw locking depth of the screw locking machine can be achieved through a moving device, it is ensured that depths of locked screws are consistent, a conveying device is arranged to achieve automatic integration of the screw locking machine, labor intensity of workers is reduced, production quality and production efficiency are improved, universality is high, and the screw locking machine can be matched with industrial line operation.
Owner:厦门蕉承贸易有限公司

An automatic piston feeder for variable displacement compressors

The invention relates to the technical field of machinery, in particular to an automatic piston feeding machine for a variable displacement compressor. The automatic piston feeding machine for the variable displacement compressor comprises a machine frame, a charging tray moving mechanism, a piston jacking mechanism, a charging tray trolley, a piston discharging mechanism, a piston overturning mechanism, and a piston front side and back side inspecting mechanism. The automatic piston feeding machine for the variable displacement compressor is characterized in that the charging tray moving mechanism is arranged in front of the machine frame, the piston overturning mechanism is arranged on the machine frame and is located behind the piston jacking mechanism, the piston discharging mechanism is arranged on the machine frame and is located above the piston overturning mechanism, and the piston front side and back side inspecting mechanism is arranged on the machine frame and is located on the left side of the piston discharging mechanism. Compared with the prior art, the provided automatic piston feeding machine has the advantages that the automatic piston feeding machine is controlled by a PLC in the whole production process, and actions in each process are calculated accurately and executed in place; meanwhile, due to the fact that the piston front side and back side inspecting mechanism is arranged, the piston placing speed is guaranteed, placement faces of pistons are kept consistent, working efficiency is greatly improved, and labor cost is reduced.
Owner:SHANGHAI SANDEN AUTO AIR CONDITIONING

Image acquisition method and device for synchronous trigger control of high-speed linear array camera and high-intensity light source

The invention discloses an image acquisition method and device for synchronous trigger control of a high-speed linear array camera and a high-intensity light source, and belongs to the technical field of machine vision, the image acquisition device comprises a shell, and is characterized in that a lens barrel is arranged at one end of the shell, and a mainboard is arranged in the shell; the mainboard is sequentially connected with a linear array camera, a lens, a high-intensity light source generator, a linear light source transmitting module, a self-adaptive pulse signal synchronous generation module, a power supply conversion module and six groups of interfaces. The exterior of the shell is connected with an external trigger sensor, a pulse adjustable generator, a light source power adjusting module and a linear parameter adjusting module through wires. According to the invention, the function of instantaneously synchronizing shutter exposure and light source and camera imaging in high-speed linear array camera acquisition can be realized, and the definition of acquired images and the balance and consistency of histogram distribution can be ensured in high-frame-rate image acquisition.
Owner:苏州博格泰新能源科技有限公司

Green onion machine

The invention relates to a green onion transplanting machine. The green onion transplanting machine comprises a rack, an engine, a speed changing box, a driving chain wheel, a driven chain wheel, a chain, a green onion storing box, a bent axle, a green onion taking clip, a green onion dividing device, a green onion transferring clip control board, a green onion transplanting board, a green onion transplanting device and a moving wheel. In a working process, the green onion transplanting machine is moved to a green onion transplanting part and green onion seedlings are divided into large, middle and small types; the green onion taking clip on the chain is driven by the chain wheels to the green onion storing box; the green onion taking clip is used for clamping the green onion seedlings from bottom to top and lifting the green onion seedlings along the chain to convey the green onion seedlings to a green onion fixing groove of a green onion dividing plate to be fixed; then green onion roots are put into the green onion fixing groove along the front-back and rotary movement of a green onion transplanting rod; the green onion seedlings are transferred to a green onion distance control groove in a green onion distance control board by a green onion transferring clip under the driving of the bent axle and a connection rod, and then are horizontally pushed to the green onion transplanting board; the green onion transplanting device in front of the green onion transplanting board is connected with the bent axle by the connection rod; and after the green onion roots are fixed by the green onion transplanting device, the green onion roots are clamped by the green onion transplanting device and the green onion transplanting device moves downwards so that the green onion seedlings are transplanted into soil. The process is repeated along the frontward movement of the green onion transplanting machine.
Owner:全椒县全动机械有限公司

Green onion transplanting machine

The invention relates to a green onion transplanting machine. The green onion transplanting machine comprises a rack, an engine, a speed changing box, a driving chain wheel, a driven chain wheel, a chain, a green onion storing box, a bent axle, a green onion taking clip, a green onion dividing device, a green onion transferring clip control board, a green onion transplanting board, a green onion transplanting device and a moving wheel. In a working process, the green onion transplanting machine is moved to a green onion transplanting part and green onion seedlings are divided into large, middle and small types; the green onion taking clip on the chain is driven by the chain wheels to the green onion storing box; the green onion taking clip is used for clamping the green onion seedlings from bottom to top and lifting the green onion seedlings along the chain to convey the green onion seedlings to a green onion fixing groove of a green onion dividing plate to be fixed; then green onion roots are put into the green onion fixing groove along the front-back and rotary movement of a green onion transplanting rod; the green onion seedlings are transferred to a green onion distance control groove in a green onion distance control board by a green onion transferring clip under the driving of the bent axle and a connection rod, and then are horizontally pushed to the green onion transplanting board; the green onion transplanting device in front of the green onion transplanting board is connected with the bent axle by the connection rod; and after the green onion roots are fixed by the green onion transplanting device, the green onion roots are clamped by the green onion transplanting device and the green onion transplanting device moves downwards so that the green onion seedlings are transplanted into soil. The process is repeated along the frontward movement of the green onion transplanting machine.
Owner:全椒县全动机械有限公司
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