39results about How to "Control opening angle" patented technology

The invention discloses an electrically controlled single-action telescopic drilling tool for borehole hydraulic mining. The telescopic drilling tool consists of a high-pressure water delivery system, a power transmission system, an electrically controlled single-action system, a water gun arm extending-retracting system and a slag discharging pipeline. The designed water gun can stretch out for the design distance along the radial direction, so that the range of borehole hydraulic mining is greatly widened, and the production efficiency is improved. According to the power transmission system, the rotating angle and speed of a stepping motor can be accurately controlled by a computer, so the opening angle of the water gun can be accurately controlled, and the water gun can stably extend and retract by utilizing a transmission mode of a ball screw. Moreover, the drilling tool is provided with the electrically controlled single-action system, the rotation torque of the drilling tool is provided by the stepping motor of the electrically controlled single-action system instead of a drill stem, and a phenomenon that a power transmission cable is damaged in the process of rotating the drill stem is avoided.

The invention discloses an electronic control telescopic drilling tool for borehole hydraulic mining. The electronic control telescopic drilling tool for the borehole hydraulic mining is composed of a high pressure water conveying system, a power transmission system, a hydraulic giant telescopic system and a deslagging channel. A hydraulic giant of the electronic control telescopic drilling tool can stretch out for a designed distance in the radial direction, the range of the borehole hydraulic mining is enlarged greatly, and production efficiency is improved. The electronic control telescopic drilling tool for the borehole hydraulic mining has the advantages that the rotating angle and speed of a stepping motor can be controlled accurately through a computer, the opening angle of the hydraulic giant can be controlled precisely, and the stretching and retracting actions of the hydraulic giant are stable through the transmission mode of a ball screw.

The invention discloses a circlip type refill opening door. The door comprises a door panel and a hinge panel, wherein the door panel and the hinge panel are in rotary connection through a hinge shaft; the hinge shaft is fixed on the door panel, and comprises a bent part; one end of a circlip is connected with the hinge panel, while the other end of the circlip is hinged on the bent part. The door can automatically open or close by applying certain acting force on the refill opening door through the design of the door panel, the hinge shaft, the hinge panel and the circlip, therefore, the operation is very convenient. The circlip generates pretightening force during installing, so the refill opening door is ensured to be closed tightly without refilling oil. Furthermore, a bump is arranged under the circlip on the door panel correspondingly, so the opening angle of the refill opening door can be controlled.

The invention relates to the technical field of car auxiliary brake and provides a resistance plate assembly for car deceleration. The resistance plate assembly for car deceleration comprises a guard board, bearing pedestals, a resistance plate, a deceleration driving device and a control unit. The guard board is provided with two opposite mounting holes. The guard board is fixedly connected with a base plate of a car body of a car. The bearing pedestals are fixedly arranged in the two mounting holes. The resistance plate comprises a plate body and two mounting bases. The plate body is located below the guard board. The two mounting bases are fixedly arranged at the two ends of the edge of the plate body. The mounting bases are movably connected with bearing holes of the bearing pedestals. The deceleration driving device is arranged between the two mounting holes. The deceleration driving device comprises a supporting frame, a servo motor, a driving output rod and a speed reduction mechanism. A brake information input end and a driving signal output end of the control unit are connected with a brake information sensor and the servo motor respectively. The resistance plate assembly for car deceleration is simple in structure, convenient to use, safe, reliable, capable of increasing wind resistance in the braking process and enhancing the brake effect and little in influence on rigidity performance and strength performance of the car body.

The invention provides a compressor system, an air conditioner and a compressor oil return control method, wherein the compressor system includes: a compressor; a lubricating oil separator connected to the exhaust port of the compressor through a pipeline, The condensate discharged from the compressor is separated from the lubricating oil, and the lubricating oil outlet of the lubricating oil separator is connected to the air return port of the compressor through a pipeline; the electronic expansion valve is set at the lubricating oil outlet of the lubricating oil separator, and through adjusting The opening angle of the lubricating oil separator controls the return speed of lubricating oil in the lubricating oil separator; the temperature detection unit, connected to the control unit, is set on the compressor to detect the temperature in the compressor; the control unit, connected to the electronic expansion valve, according to the compression The temperature inside the machine controls the electronic expansion valve to adjust the opening angle. The invention can flexibly adjust the opening angle of the electronic expansion valve according to the temperature in the compressor, so as to ensure that the amount of lubricating oil in the compressor is in a relatively stable state.

The invention discloses a quasi-circular fruit and vegetable picking end executor, method and robot. The end executor comprises a box, a clamping mechanism and a cutting mechanism. An electromagnet and a motor are arranged in the box. The clamping mechanism comprises an elastic moving component, a fixing block, left claw mechanical fingers, right claw mechanical fingers and a sliding restraining disc for controlling the open angel of the left claw mechanical fingers and the right claw mechanical fingers. The left claw mechanical fingers and the right claw mechanical fingers penetrate the sliding restraining disc and are connected with the fixing block through pins respectively, and gaps for enabling the left claw mechanical fingers and the right claw mechanical fingers to move are formed in two sides of the fixing block respectively. One end of the elastic moving component penetrates the center of the electromagnet, and the other end penetrates the fixing block to be fixedly connected with the sliding restraining disc. The motor is connected with the cutting mechanism. The end executor is simple in structure, convenient to use and provided with certain fruit and vegetable picking universality and represents the light weight purpose of mechanical development.

The invention discloses a blade-type server system which comprises a blade server, a management module, a fan module for cooling the blade server and a fan outlet and is further equipped with a fan outlet separator corresponding to the blade server which is arranged in one fan outlet side close to the blade server, wherein the management module is used for defining the operation status of each blade server and control the closing or opening of the fan outlet separator corresponding to each blade server according to the operation situation; the fan outlet separator is closed or opened accordingto the indication of the management module. The invention further discloses a cooling method for blade-type sever systems, solving the problem that the cooling effect of the blade-type server systemin prior art is not good. The proposal of the invention can use the finite fan outlet reasonably and dynamically according to the operation situation of each blade server, which improves the cooling efficiency of the system and reduces the power consumption of the system.