59results about How to "Realize emergency stop" patented technology

The invention relates to a heavy electric radiation protection door. The door comprises a base with door hole, a door body and an electric control box, wherein the base above the door hole is provided with a main beam into which a lead screw driven by a motor is penetrated; multiple groups of horizontal pulleys are hung at the lower end of a nut engaged with the lead screw; rollers arranged at the upper ends of each group of horizontal pulleys are pressed on the surface of a horizontal guide rail arranged on the main beam in a sliding way; and all the lower ends of each group of horizontal pulleys are connected with the upper end of the door body. The door has a simple structure; stable and accurate running of the door body is realized by the lead screw and the horizontal pulley; opening or closing of the door body is realized by a frequency converter control motor; and the door has high automation level, is safe and reliable, and has a good radiation protection effect because barium sulfate concrete is filled in the door body.

The invention discloses rotation stopping equipment for a transmission shaft and a use method of the equipment. The equipment comprises a machine body, a first cavity formed in the machine body and asecond cavity formed in the machine body, a third cavity is formed in the right end wall of the first cavity, a first sliding block is slidably disposed in the third cavity, a rotating sleeve extending to the left and right is rotatably arranged in the first sliding block, and a spline hole which is communicated with the left and right is formed in the rotating sleeve. The equipment is simple in structure and convenient to operate, a same power source is adopted for driving the power connection of a driving machine and the separation of an output shaft of the driving machine, a locking block is driven to be mechanically connected with the driving machine at the same time, so that the power of the driving machine is utilized to eliminate the inertia of the output shaft, emergent stopping ofthe output shaft of the equipment is achieved, and the output precision of the equipment is improved. Meanwhile, the driving machine can be automatically powered on, powered off and locked after thekinetic energy is achieved, work procedures cooperate with one another without affecting one another, and the practical performance of the equipment is improved.

The invention relates to a belt breakage protection system for a belt conveyor. The belt breakage protection system comprises a detecting mechanism, a capturing mechanism, a controller and a capturing mounting frame. The detecting mechanism is mounted at a belt carrier roller in the middle of the belt conveyor, the capturing mounting frame is mounted on the belt conveyor, the capturing mechanism is arranged on the capturing mounting frame, the detecting mechanism and the capturing mechanism are respectively connected with the controller by data lines, the detecting mechanism detects broken belts and transmits signals to the controller, and the capturing mechanism captures the broken belts under the control of the controller. The belt breakage protection system has the advantages that the detecting mechanism and the capturing mechanism are arranged on the belt conveyor, the detecting mechanism transmits the signals to the controller when the belts of the belt conveyor are broken, the controller transmits signals to the capturing mechanism, the capturing mechanism captures the broken belts, accordingly, the purpose of belt breakage protection can be achieved, and hazards due to belt breakage accidents can be prevented.

The invention discloses a rotary touch obstacle meeting mechanism, a power integration mechanism and a clothes drying machine. The obstacle meeting mechanism comprises a cover plate, a body part, an on-off elastic sheet and an abutting part. The cover plate is provided with a rotating shaft. The body part is arranged on the cover plate and is provided with a side wall. The on-off elastic sheet isconnected with the side wall and is provided with a contact portion in electric wire connection with the body part within the deformation range of the on-off elastic sheet. The abutting part comprisesa rotating portion, an abutting portion and a wire pressing portion, all of which are connected in sequence, the rotating portion is in pivotal joint with the rotating shaft, the joint of the rotating portion and the abutting portion is bent, and the abutting portion right faces the on-off elastic sheet, so that the abutting part half surrounding the body part. Under the action of external force,the wire pressing portion drives the abutting part to rotate with the rotating shaft as the axis, the butting portion moves towards the direction of the on-off elastic sheet so as to abut against theon-off elastic sheet, so that the on-off elastic sheet deforms elastically and is pressed towards the contact portion, and breakover of the body part is achieved. The size of the obstacle meeting mechanism can be reduced, detection precision and timeliness of the obstacle meeting mechanism can be improved, meanwhile, wires in the clothes drying machine are ordered, and the inner space of the clothes drying machine is saved.

The invention discloses a safety precaution method for a winding machine. The method comprises the following steps that the current rotation rate and a positive current value are acquired by the winding machine in real time; a resistance value of the winding machine is extracted by the winding machine; the emergency stop procedure of the winding machine is started when the resistance value exceeds a set threshold. The safety precaution method and system for the winding machine have the advantage of being low in cost.

The invention relates to the technical field of e-commerce, and discloses an angle-adjustable rotating commodity exhibition stand, which includes a base, a motor is arranged on the inner bottom surface of the base, and a power shaft is meshed with the right gear of the motor, and the power shaft The middle section of the power shaft is meshed with a central shaft, the top of the power shaft is meshed with a planetary shaft, the middle section of the central shaft is sleeved with a platform bracket, and a section of the central shaft is meshed with a transmission shaft in the platform bracket. The right side of the transmission shaft is meshed with a platform rotating shaft. The angle-adjustable rotary commodity booth, through the rotation of the driving screw, makes the paddle to toggle the brake wheel to drive the planetary shaft to move left and right, realize the forward rotation, vacancy and reverse rotation of the planetary shaft, and drive the platform bracket to rotate around the central axis, that is, the angle Adjustment, the motor rotates, which in turn drives the power shaft, the central shaft, the transmission shaft and the platform shaft to rotate, so that the display stand can rotate around its own axis, so that the display stand can rotate at a freely inclined position.

The present invention relates to an application method of an adjustable motor cooling device. The motor cooling device is installed at the rear end of a motor body, a rectangular insertion rod is formed at the rear end of the output shaft of the motor body, and axially arranged cooling pins are uniformly distributed at the circumference of the outer wall of the motor body. The motor cooling devicecomprises a device housing, a transmission device, a blowing device and an opening and closing device. The application method comprises the steps of: the step 1, performing blowing and cooling by employing the blowing device; and the step 2, regulating a cooling effect. The motor cooling device employs the transmission device to transmit the power of the motor to the blowing device, the pneumaticblades of the blowing device generate an airflow, and the airflow accelerates the flow of the airflow at the outer wall of the motor body to enhance the cooling effect; and moreover, on the premise without change of the rotation speed of the motor, an adjustable outer ring is rotated to regulate the rotation speeds of transmission gears and the pneumatic blades so as to regulate the flow speed and cooling effects of the airflow.

The invention discloses an up grade change point rope running warning protector of an endless-rope continuous towing vehicle. A pair of T-shaped rope pressing wheels opposite to each other in a staggered manner is mounted on bases; the wheel shafts of the T-shaped rope pressing wheels sleeve a rope pressing wheel base plate and are limited by use of nuts mounted on the wheel shaft; the wheel shafts are capable of moving on the rope pressing wheel base plate; an oscillating arm is mounted on the lower side surface of the rope pressing wheel base plate; the oscillating arm is mounted on an oscillating arm rotating shaft; the two ends of the oscillating arm rotating shaft are fixed on the bases; a tension spring mounting rod is arranged on the base; one end of a tension spring is fixed on the tension spring mounting rod, while the other end of the tension spring is fixed on the oscillating arm; on the rope pressing wheel base plate, sensors are mounted on the lower ends of the opposite T-shaped rope pressing wheels. The up grade change point rope running warning protector has the following technical effects that when the towing rope of the endless-rope continuous towing vehicle runs at the up grade change point, in other words, the towing rope separates from the position between the T-shaped rope pressing wheels opposite to each other in the staggered manner and the T-shaped rope pressing wheels slide down under the effect of gravity to trigger the sensors, the sensors transmit stopping signals to realize emergency shutdown; the protector is simple in structure and stable and reliable in signal detection quality, and therefore, the purpose of guaranteeing safe and normal operations of the equipment is realized.

The invention relates to an adjustable heat dissipation device for a motor, which is installed at the rear end of the motor body. The rear end of the output shaft of the motor body is formed with a rectangular insertion rod. The motor cooling device includes a device casing, a transmission device, a blowing device, and an opening and closing device. An adjustable motor cooling device according to the present invention transmits the power of the motor to the blowing device through the transmission device, and the wind-driven fan of the blowing device The leaves generate airflow, which accelerates the airflow on the outer wall of the motor body, thereby enhancing the heat dissipation effect; without changing the motor speed, the speed of the transmission gear and the fan blade can be adjusted by rotating the adjustable outer ring. Then adjust the airflow velocity and cooling effect.

The invention provides a multistage protection pneumatic reciprocating saw. The multistage protection pneumatic reciprocating saw comprises a rectangular floor base, wherein a supporting arm which vertically extends upwards is arranged at the top of the base, an upper arm which is horizontally arranged is fixedly arranged at the top end of the supporting arm, a lower arm which is horizontally arranged is fixedly arranged at the bottom end of the supporting arm, and the lower arm and the upper arm are arranged correspondingly; a horizontal working table fixedly connected with the base is arranged between the upper arm and the lower arm, and the working table is arranged close to the lower arm, and a saw body is movably arranged between the upper arm and the lower arm. The saw body comprisesa saw blade which is vertically arranged and movably penetrates through the working table, a pneumatic driving device which drives the saw blade to move up and down in the vertical direction is arranged in the base, an air supply protection device is in communication between the high-pressure air source and an input end of the pneumatic driving device and is used for controlling the on-off of high-pressure air, and the air supply protection device comprising an emergency stop switch and a broken saw protection mechanism.

The invention relates to a turbocharger with a variable axial section. The turbocharger comprises a compressor, an intermediate, a turbine shell and an exhaust shell which are connected in sequence; the turbine shell is provided with a waste gas inlet and is internally provided with a turbine and a vortex tube flow pass communicated with the waste gas inlet and the turbine respectively, one end of the exhaust shell is provided with an exhaust outlet, a cavity body and a moving control ring are arranged between the inner side of the turbine shell and the outer side of the exhaust shell, one end of the moving control ring is located between the vortex tube flow pass and the turbine while the other end is located in the cavity body, and the turbocharger further comprises an electronic control execution mechanism in transmission connection with the moving control ring. Compared with prior art, the axial variable section is realized by peripheral rotation and axial movement of the moving control ring, further an effective air inlet area of the turbine can be adjusted according to air inlet needs of an engine, the structure is simple, the manufacturing cost is low, the control is easy and safety and reliability are realized.

A multi-system fused three-dimensional visual command platform, the invention relates to the technical field of coal preparation systems, which includes a three-dimensional visual command platform, an OPC server, a PLC and a video system; wherein the three-dimensional visual command platform includes a video monitoring system management module, a video alarm subscription program and event processing program; the above-mentioned video monitoring system management module and event processing program are all connected to the OPC server, and the OPC server is connected to the PLC; the above-mentioned video alarm subscription program and event processing program are all connected to the video system. It can reflect the actual situation of coal preparation production more truly and accurately, and can improve the stability and safety of coal preparation production and equipment operation according to more abundant alarm items.