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

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.

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.

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.

The invention relates to a method for compensating parameters below the base speed of a permanent magnet synchronous motor based on feedforward voltage compensation, comprising: S1. calculating d-axis current and q-axis current; S2. calculating d-axis current command through torque command; S3 .Through the current loop PI regulator to obtain and S4 respectively. Calculate and and respectively and sum to obtain and S5. And input to the space vector modulation module to obtain 6 pulses, which act on the voltage type inverter to control the motor; S6. The q-axis inductance and d-axis flux linkage are compensated; the compensated q-axis inductance and d-axis flux linkage are used for the calculation of step S2 and step S4 in the next calculation cycle; the reciprocating cycle of step S1-S6 is through the compensation of the motor parameters Achieve precise control of motor output torque.

The invention relates to an elevator device, comprising a bracket main body, a tray and a motor. The bracket main body is composed of a guide rail bracket and a pulley bracket. A guide rail is arranged on the guide rail bracket, and an inner pulley is arranged on the tray, and the inner pulley is fastened and connected to the guide rail. , the bottom of the tray is provided with a lift plate, the lift plate is connected to the ground of the pallet through a rotating shaft, and the rotating shaft is also provided with a traction column A and a traction column B respectively towing a stop forming switch and a standby travel switch, and the tray is provided with an inclined placement switch. There is a start travel switch on the rear side of the load board, a start trigger line is connected to the start formation switch, a return travel switch is arranged on the left side of the tray, a wireless signal transmitter and a battery pack are also arranged on the tray, and the tray The steel rope A and the steel rope B are hoisted, and the motor plays a driving role, and the motor drives the reel to realize retracting and unwinding of the steel rope A and the steel rope B. The invention has the advantages of simple structure, low manufacturing cost and high work efficiency.