37results about How to "Reduce failure links" patented technology

The invention relates to an object position sensor, in particular to an electromagnetic pushing-beating-type object-detecting device. The device comprises a magnetic pendulum rod, an electromagnet and an electronic module, wherein the electromagnet is arranged on one side of the magnetic pendulum rod and the electronic module controls the electromagnet to drive the magnetic pendulum rod to swing and amplifies, processes and outputs a swinging signal of the magnetic pendulum rod, which is acquired by the electromagnet, in a delayed way; the magnetic pendulum rod is hung on one side of a main body shell by a hanging device; the electromagnet is arranged in the main body shell; the electromagnet consists of an electromagnet core and an electromagnetic coil; the electronic module comprises a power supply circuit, a pulse generating circuit, a pulse driving circuit, a signal amplifying circuit, a signal processing circuit and a signal delaying output circuit; and all the circuits are arranged in the main body shell or isolated from the main body shell for independent encapsulation. The electromagnetic pushing-beating-type object-detecting device has the advantages of high sensitivity, accuracy and reliability, wide application range, no maintenance, long service life and the like.

The invention discloses an inclined sliding groove rail pair with a self-locking flat surface. The inclined sliding groove rail pair comprises a driving sliding block (1) and a driven sliding block (2). By means of the groove rail pair composed of the driving sliding block and the driven sliding block, an abutting flat surface is arranged at the position of an inclined sliding rail of the driving sliding block, a non-return flat surface is arranged at the position of an inclined sliding groove of the driven sliding block, during working, the driving sliding block linearly slides, the inclined sliding rail of the driving sliding block tract pulls the inclined sliding groove of the driven sliding block to enable the driven sliding block to slide in an inclined mode, the abutting flat surface of the driving sliding block slips into and abuts against the upper portion of the non-return flat surface of the driven sliding block so as to prevent the driven sliding block from retracting, so that an inclined core drawing block at the lower end of the driven sliding block is locked, the driving sliding block only slides for one time to perform inclined pulling and locking to the driven sliding block, defects of complicated structures, high costs, excessive hidden danger and fault links and low efficiency which exist in prior art are overcome, and purposes of simplifying structures, reducing costs and fault links and improving efficiency are achieved.

The invention discloses an in-mold shearing cylinder of an aluminum extruder, and relates to a cylinder of an aluminum extruder. The in-mold shearing cylinder solves the problems that oil is easy to deteriorate and the sealed cylinder is aged and damaged. The in-mold shearing cylinder is characterized in that: a piston rod is connected with a detection rod through a pressure plate by using screws; the detection rod is provided with a No.1 passage for hot oil circulation; the piston rod is provided with a No.2 passage which is communicated with the No.1 passage and used for hot oil circulation; a hydraulic system consists of a main pump system and a circulating cooling system; in the main pump system, a reversing valve, a one-way throttling valve and a port A and a port B of the cylinder body form a loop; in the circulating cooling system, a reversing valve, a hose, a one-way valve, a port C of the detection rod, the No.1 passage, the No.2 passage and a port B of the cylinder body forma loop; and the upper end of the cylinder body is provided with a longitudinal drainage groove. The in-mold shearing cylinder reduces the fault link of the aluminum extruder, and improves the work efficiency.

The invention discloses a traction control system and a traction position correction computing method. The traction control system comprises a steel wire reel transmission system, a rail reciprocation vehicle and a multi-circle absolute value rotary encoder used for detecting rotating position of a steel wire reel, a permanent magnet is mounted on the rail reciprocation vehicle, a magnetic limiting switch is mounted at the starting position of a rail on which the rail reciprocation vehicle travels, the permanent magnet on the rail reciprocation vehicle is just induced by the magnetic limiting switch when the rail reciprocation vehicle reaches to the starting position of the rail, and a controller computes the current traction position of the rail reciprocation vehicle according to the multi-circle absolute value rotary encoder and detection signals fed back by the magnetic limiting switch. The traction control system and the traction position correction computing method can solve the problem about computation error caused by zero point crossing of the rotary encoder, and the traction control system is simple in structure design, low in cost, few in fault links, high in reliability, and capable of providing a powerful technical guarantee to accurate position and transportation of articles.

The invention provides a signal processing platform applicable to a multi-sensor self-adaption optical system. The signal processing platform comprises a plurality of signal processing modules (1) with a bus switch, an interconnection rear panel (2) based on a CPCI (Compact Peripheral Component Interconnect) bus structure, an expansion I / O (Input / Output) board (3) and a monitoring host (4). With the adoption of the structure, the signal processing platform provided by the invention can be used for processing wave-front signals of a plurality of sensors in parallel and combining low-delay data among the sensors in parallel; the good expandability, the generality, the clipping property and the small size of the signal processing platform can be realized due to a dynamic bus structure with a switch and a changeable operation signal processing module structure; and the signal processing platform is applicable to processing the self-adaption optical wave-front signals in various applicable fields.

The invention discloses a PLC (programmable logic control)-free servo control system for a suspended flyer roving frame. The PLC-free servo control system comprises a flyer motor, a roller motor, a winding motor, a keel motor, a first driver, a second driver, a third driver and a fourth driver. The first driver is electrically connected with the flyer motor and is used for controlling operation of the flyer motor, the second driver is electrically connected with the roller motor and is used for controlling operation of the roller motor, the third driver is electrically connected with the winding motor and is used for controlling operation of the winding motor, the fourth driver is electrically connected with the keel motor and is used for controlling operation of the keel motor, the first driver computes and adjusts the working rotational speed Ns of the flyer motor and feedback pulse signals of an encoder of the flyer motor according to preset values, and outputs the pulse signals to the second driver and the third driver, and the second driver, the third driver and the fourth driver constantly adjust operation rotational speeds of the roller motor, the winding motor and the keel motor respectively on the basis of the received pulse signals. The PLC-free servo control system has the advantages that fault links are effectively reduced, and PLC is omitted.

The invention discloses an electric vehicle hydraulic control pump / motor power assisting system, and belongs to the technical field of hydraulic transmission. The electric vehicle hydraulic control pump / motor power assisting system comprises a main loop consisting of a pump / motor (5) and energy accumulators (9) and (10), a power assisting control loop consisting of a hydraulic control proportioning valve (4) and a power assisting cylinder (20) and a brake control loop consisting of the hydraulic control proportioning valve and a brake cylinder (14). The pump / moor is meshed with an electric motor (2) and a drive axle through a power divider (3). During braking, a vehicle inertia driving pump is used for charging the energy accumulators, and the pump generates a braking torque for a vehicle. When the vehicle starts to run, the energy accumulators supply oil for the motor to assist the electric motor in driving, and the overloading of a power battery is prevented, thus the service life of the vehicle is prolonged. The output oil pressure of the hydraulic control proportioning valve can be controlled through a brake pedal (16) and an accelerator pedal (22), and the discharge capacity of the pump / motor is adjusted, thus the hydraulic brake and power assisting strength is controlled. The electric vehicle hydraulic control pump / motor power assisting system has the characteristic that full hydraulic control is adopted, and has the advantages of high environmental suitability and high reliability.

The invention discloses a hydraulic logic control device for pressure self-adaptive switching of main and auxiliary hydraulic cylinders. The auxiliary cylinder is sequentially connected with a pressure regulating valve, a throttle valve and a second electromagnetic reversing valve. The first logic valve and the second logic valve are respectively connected between the pressure regulating valve and the auxiliary cylinder. The first logic valve is connected to the master cylinder. And between the first electromagnetic reversing valve. The present invention not only fully realizes the functions of the existing control methods, but also reduces the links that are likely to cause failures, and the inherent rapidity, sensitivity and reliability of pressure self-adaptation eliminates tremors, switching shocks, and slippage at rest. Shifting and other issues, the switching between main and auxiliary hydraulic cylinders is smoother, which is very suitable for the working conditions of the mechanism.

The invention discloses a stepping motor subdivision control system and a control method thereof. The system includes: a sequentially connected FPGA, a power drive chip, a two-phase stepping motor and a harmonic reducer; Sine and cosine signal modules, outputting sine and cosine signals to the comparator module; sawtooth wave signal modules, outputting sawtooth wave signals to the comparator module; the comparator module compares the sine and cosine signals with the sawtooth signal , output PWM signal, the duty ratio of PWM signal changes according to the law of sinusoidal signal. The stepper motor subdivision control method provided by the present invention deletes the D / A conversion circuit in the traditional stepper motor control scheme, and directly generates PWM signals to drive the stepper motor to rotate through digital signal comparison, reducing engineering costs and improving System reliability.