22results about How to "Stop in time" patented technology

The utility model discloses a protection and alarm device for a magnetic suspension blower, which relates to the technical field of magnetic suspension blowers and comprises a magnetic suspension blower. The magnetic suspension air blower is provided with a high-speed permanent magnet synchronous motor, an impeller and two magnetic suspension bearings, the high-speed permanent magnet synchronous motor comprises a motor shell, a motor stator fixed in the motor shell and a motor rotor matched with the motor stator, the impeller is fixed to the end of one side of the motor rotor, and the two magnetic suspension bearings are arranged at the two ends of the motor rotor. The rotor protection mechanism comprises an outer seat sleeve fixedly connected with the motor shell, a radial supporting mechanism is arranged in the outer seat sleeve, and the radial supporting mechanism is arranged on the outer side of the motor rotor in a sleeving mode and makes separable contact with the motor rotor. According to the protection and alarm device for the magnetic suspension air blower, the motor rotor can be timely supported when the magnetic suspension bearing is damaged, and safe shutdown is facilitated.

The utility model relates to the technical field of stranding machines, in particular to a stranding machine, which is characterized in that a motor is fixedly connected onto a mounting plate, an output end of the motor is fixedly connected with a turntable, a plurality of pay-off mechanisms are connected onto the turntable at equal intervals along the axis direction, a bunching tube is fixedly connected onto the turntable, and a plurality of through holes are formed in the bunching tube at equal intervals along the axis direction. Each pay-off mechanism is connected with a broken line detection mechanism; and the broken line detection mechanism comprises a fixed frame, the fixed frame is fixedly connected to the pay-off mechanism, a groove column is fixedly connected to the bottom end of the fixed frame, an extrusion part is slidably connected to the groove column, and a pressure sensor is fixedly connected into the groove column. When the copper wire is broken, the straightened copper wire is in a loose state, the copper wire is separated from the extrusion piece, the extrusion piece loses thrust, the extrusion piece is separated from the pressure sensor, and the pressure value detected by the pressure sensor returns to zero, so that the copper wire is known to be broken, and the motor is stopped in time.

The invention relates to the technical field of underwater slicing devices, and mainly relates to an anti-uv high-strength chinlon underwater slicing device. Comprising a mounting plate, the mounting plate is fixedly connected with a fixing seat, the fixing seat is fixedly connected with a first fixing shell, the first fixing shell is fixedly connected and communicated with a first water outlet pipe, the first water outlet pipe is fixedly connected and communicated with a second fixing shell, the second fixing shell is fixedly connected with a vibration shell, and a vibration piece is slidably connected in the vibration shell. The vibration piece is fixedly connected with first vibration plates which are symmetrically distributed, the vibration piece is fixedly connected with a hydraulic telescopic rod, and the telescopic end of the hydraulic telescopic rod is fixedly connected with a second vibration plate. According to the chinlon particle cooling device, chinlon particles are cooled through water, meanwhile, the contact time between the chinlon particles is prolonged through a first vibration plate and a second vibration plate, the chinlon particles are prevented from being adhered under the vibration effect, and when chinlon particles of different sizes are produced, the production efficiency is improved. And the cooling time of the chinlon particles is adjusted by adjusting the position of the second vibration plate.

The present disclosure relates to a detection method for abnormal stop of a control moment gyro of a spacecraft, comprising: obtaining a plurality of on-orbit telemetry data of the control moment gyro within a specified time period, and performing rejection and repair processing to obtain on-orbit repair data corresponding to each type of on-orbit telemetry data, each on-orbit repair data corresponding to a threshold value; calculating the first-order difference of each on-orbit repair data respectively, and comparing each first-order difference value with the corresponding threshold value; the specified time period includes a plurality of abnormal time periods and a plurality of normal time periods; if the absolute value of each first-order difference value is greater than the corresponding threshold value in all abnormal time periods, and the absolute value of each first-order difference value is less than or equal to the corresponding threshold value in all normal time periods within the specified time period, the control moment gyro is in an abnormal stop state after the last abnormal time period. The present disclosure can accurately and timely detect and discover the stop of the control moment gyro.

The utility model discloses a multipurpose rotary cultivator which comprises a rack, rotary tillage teeth are arranged below the rack, the rotary tillage teeth are connected with a first rotating shaft, the first rotating shaft is connected with the rack through a bearing, the first rotating shaft is connected with a driving mechanism, a fertilization mechanism is arranged on one side of the first rotating shaft, and a ditching mechanism is arranged below the fertilization mechanism. According to the rotary cultivator, the mechanisms are matched with one another, the fertilizing mechanism is arranged, the rotary cultivator can fertilize to-be-cultivated land, the cultivated land does not need to be fertilized manually, the workload of workers is reduced, and the ditching mechanism is arranged, so that when the cultivated land needs to be ditched, a ditching cutter can be installed, and ditching is facilitated.

The invention discloses refractory material homogenization production equipment and a refractory material homogenization production method, and belongs to the technical field of refractory material processing. The equipment comprises a mixing cavity, concentration detection sensor groups arranged in different areas, a variable-frequency driving stirring device, a plurality of paths of independent feeding subsystems and a control unit. According to the method, a segregation potential matrix is calculated and an optimal feeding sequence is determined according to the median particle size and true density of each component, and each component is sequentially input at a self-adaptive rate according to a gradual increasing function; in the mixing process, a homogeneity gradient field is constructed, a segregation area is recognized, and segregation severity is quantified; the stirring speed is adjusted in a self-adaptive mode by combining a proportion-integral control law and feed-forward compensation, and a mixing end point is automatically judged after the homogeneity reaches the standard and is stable. According to the invention, the component uniformity and batch consistency of the refractory material are improved, and the energy consumption is reduced.

The utility model relates to the technical field of glue discharging structures, in particular to a glue discharging structure which comprises a feeding barrel, a glue discharging pipe and a glue discharging pipe, one end of the discharging seat is detachably connected with the feeding cylinder, a discharging opening is formed in the other end of the discharging seat, a second connecting seat is connected to the position, located on the discharging seat, outside the discharging opening, and a discharging mechanism used for leading out the sizing material is arranged in the discharging seat; and the heating mechanism is used for heating the sizing material in the feeding barrel and the discharging seat. Through the arrangement of the heating mechanism, glue in the feeding cylinder and the discharging seat can be always in a molten state, glue discharging is facilitated, the situation that solidification occurs due to temperature reduction and use is interfered is avoided, the glue discharging efficiency is improved, and the heating mechanism is convenient and rapid to disassemble and assemble and convenient for daily maintenance; and by arranging the glue discharging mechanism, glue at the discharging end of the discharging base can be conveniently stopped in time, pollution or waste caused by outflow of redundant glue is avoided, and the glue discharging efficiency is further improved.

The utility model discloses an outer protective cover for stamping, which belongs to the field of stamping machine protective devices and comprises a protective cover body used for covering a stamping head and a stamping operation table of a stamping machine, the protective cover body is in a lateral concave shape, and a feeding channel is arranged on the protective cover body. The feeding channel is located on the plane of the working position of the stamping head and the stamping operation table, a feeding shielding piece is rotationally installed at a feeding port of the feeding channel, a visible window is formed in the front face of the protective cover body, and a transparent protective cover for covering the visible window is rotationally installed on the protective cover body. The stamping die can be conveniently disassembled, workpieces can be conveniently taken and placed in and out during stamping operation, the stamping operation condition can be observed at any time through the visible window, and meanwhile the safety of operators can be protected through the transparent protective cover.

The invention belongs to the field of petroleum drilling machines, particularly relates to a multifunctional variable-frequency electric rope rewinding machine for a petroleum drilling machine, and aims to solve the problems that an existing brake cannot stop a rotating rope wheel timely and effectively or too quickly, and the brake is too soft or too hard. In order to solve the problem of poor rope winding caused by incapability of continuously tensioning a steel wire rope when the steel wire rope is wound on a drum of the well drilling winch due to incapability of following a well drilling winch under a large rope switching working condition, the following scheme is provided: the rope winding machine comprises a rack, a variable-frequency power system, a variable-frequency control system, a gear component assembly, a rope wheel assembly, a rope guide drum assembly and a disc brake assembly. According to the device, the purpose of winding and unwinding the drilling line can be achieved through the driving rope wheel, and the purpose of flexible braking is achieved by reasonably setting the braking time and logic of energy consumption braking and an electromagnetic brake; the variable-frequency control system ensures that the rope rewinding machine follows the drilling winch when the large rope working condition is switched, so that the steel wire rope is continuously tensioned when being wound on a drum of the drilling winch, and good rope winding of the drilling winch is ensured.

The application relates to a limiting sensor device and a greenhouse cotton quilt spreading system. The limiting sensor device comprises a shell, a circuit board and a mercury switch. The shell is a hollow cuboid. The circuit board is arranged in the interior of the shell and located at the bottom of the shell. The mercury switch is arranged in the shell. The mercury switch is a hollow columnar structure. The mercury switch is arranged longitudinally on the circuit board. The interior of the mercury switch is provided with a mercury bead. The mercury bead can flow along the column length direction of the mercury switch. The bottom end of the mercury switch is electrically connected with the circuit board through a wire. The top end of the mercury switch extends upwards. The number of the mercury switches is two or more. Any two adjacent mercury switches are connected in series. The plurality of mercury switches are suitable for transmitting electric signals to the outside. The limiting sensor device has high sensitivity. The plurality of mercury switches can realize on-off control of the switches under a slight angle inclination. Therefore, the current rolling and spreading state of the greenhouse cotton quilt can be obtained more timely.

The utility model discloses a double-block type sleeper demolding table, a demolding system and a prefabricated part production line, the double-block type sleeper demolding table comprises mold bearing devices, a sleeper bearing cross beam, a sleeper detection unit and a control unit, the two mold bearing devices are arranged side by side, and at least one mold bearing device is provided with a vibration motor; the two sleeper bearing cross beams are arranged between the two mold bearing devices side by side; at least one sleeper bearing cross beam is provided with a sleeper detection unit, and the sleeper detection unit is configured to detect whether the sleeper is separated from the sleeper mold or not; the vibration motor is in signal connection with the control unit and is controlled by the control unit; the sleeper detection unit is in signal connection with the control unit; and when the sleeper detection unit detects that the sleeper is separated from the mold, the control unit controls the vibration motor to stop working. According to the double-block type sleeper demolding table, product cracks in the demolding process of the double-block type sleeper can be reduced, and the qualified rate of products is increased.

The utility model provides an intelligent cold and hot water isolation pumping device which comprises a water pump body and a control module, and the water pump body is provided with a water inlet pipe and a water outlet pipe; an electromagnetic valve is further mounted on the water outlet pipe; a mounting hole is formed in the flow channel wall, vertically close to a pump cavity of the water pump body, of the water pump body, and a temperature sensor is arranged in the mounting hole through a mounting plate; and the electromagnetic valve and the temperature sensor are electrically connected with the control module. The utility model has the advantage of reasonable structural design.

The utility model discloses an assembly line manipulator anti-collision visual imaging device which comprises a base, a mechanical arm arranged on the base and a six-axis gripper arranged on the mechanical arm. The six-axis gripper is provided with a data acquisition module used for acquiring the number, colors and relative positions of paper tubes, an image processing module used for preprocessing information acquired by the data acquisition module, and PC platform computer equipment used for analyzing and controlling information sent by the image processing module. The colors, the number and the relative positions of the paper tubes grabbed by the six-axis gripper are acquired through the data acquisition module, are preliminarily processed through the image processing module and then are uploaded to the PC platform computer equipment for comparative analysis, problems are found in time through the PC platform computer equipment, and shutdown processing is conducted in time. The production accuracy is high, the working efficiency is improved, the use range is wide, the operation is simple and convenient, the product grabbing accuracy is high, and the product damage is reduced.

The application relates to a motor drive protection circuit and an energy storage power supply. The circuit acquires the DC power supply voltage in real time through an under-voltage protection module, and cuts off the drive of the motor by outputting a first signal when the DC power supply voltage is lower than the reference voltage; and samples the motor working current through an overcurrent detection module, and outputs a second signal to stop driving the target motor when the working voltage corresponding to the working current exceeds the reference voltage, so that the target motor is stopped in time before the low-efficiency operation caused by under-voltage or the overheating damage caused by overcurrent, and the motor drive module is directly controlled through the hardware signal interaction between the modules, so that the response speed is fast. Meanwhile, the motor drive module normally drives the target motor according to the PWM signal when there is no abnormal signal, and triggers protection only when an abnormality is detected, so that the normal work of the target motor is not affected, and the target motor and the circuit can be protected in time when the power supply is abnormal.

The utility model relates to the technical field of bucket type lifting mechanisms, and discloses a continuous bucket type lifting mechanism which comprises a base, a shell fixedly installed at the upper end of the base, a feeding opening formed in the left end of the shell, a machine box fixedly installed at the upper end of the rear portion of the shell, an observation ring arranged at the front end of the shell and made of transparent plastic materials, and a rear cover fixedly installed at the right end of the shell. A motor is installed in the case, the front end of the motor is connected with the rear end of the shell in an inserted mode, a driving shaft is fixed to the portion in the shell, a driven shaft is rotationally connected to the lower portion in the shell, the outer surfaces of the driving shaft and the driven shaft are sleeved with the same crawler belt, the front end of the driving shaft is rotationally connected with the shell, and a one-way bearing is installed at the front end of the driven shaft. A hand rocker is installed at the front end of the one-way bearing, and a plurality of rows of inserting bolts are inserted into the crawler belt. Through special connecting parts and a connecting mode of the hopper and the crawler belt, the hopper can be quickly disassembled, the device is prevented from being stuck by arranging an observation ring and a hand rocker connected with a one-way bearing, and a user can use the device conveniently.

The utility model belongs to the technical field of black pearl processing, and particularly discloses quantitative batching equipment for black pearl processing, which comprises a support plate and an inclined table, the inclined table is fixed at the center of the top end of the support plate, a sleeve is fixed on the left side of the top end of the support plate, an insertion rod is inserted and fixed in the sleeve, and a box body is welded at the top end of the insertion rod. And a guide block is welded at the lower part in the box body. According to the quantitative batching equipment for black pearl processing, a slide way is formed between a side plate and an inclined table, each notch is provided with a corresponding box body, pearls are stored in the box bodies after a cover body is opened, and after a baffle is lifted, pearl particles can slide from top to bottom along the slide way formed by the side plate, penetrate through a through groove and an opened valve and fall into a tank body; black pearls with different colors and diameters can be stored in each box body, batching and quantitative batching can be realized under the control of the controller, and the problem of abrasion in pearl delivery is solved.

The utility model relates to safe escape technical field, and disclose an emergency escape safety rope assembly, including slow -descending component, and the first nylon rope on slow -descending component and the spacing component inside setting of slow -descending component, the other end of first nylon rope away from slow -descending component is provided with the hook, the other end of slow -descending component away from first nylon rope buckle connection has safety lock, the other end of safety lock away from slow -descending component is provided with second nylon rope, the other end of second nylon rope away from slow -descending component is provided with the connecting lock, the other end of connecting lock away from second nylon rope fixed mounting has the protection component. The emergency escape safety rope assembly, when needing to move, need to rotate the connecting block manually subsequently make the card block fall off the gear, when the rescuer is in the air, can make the card block enter the gear, can liberate the hands hover, have the function of anti-panic, can be in time and stop under the condition that the rescuer appears in the confusion, and have the function of stopping when leaving the hand, improve practicality.

A portable optical fiber humidity measuring device disclosed by the present invention comprises an optical fiber sensor base body, one end of the top surface of the optical fiber sensor base body is provided with a manual adjusting rod through a screw, the top of the manual adjusting rod is provided with a mounting frame through a screw, and one end in the mounting frame is rotatably connected with a first gear. Compared with the prior art, the optical fiber winding device has the beneficial effects that the uniform winding assembly is arranged, in the optical fiber winding and unwinding process, optical fiber winding and reciprocating movement are synchronously carried out, the optical fiber can be uniformly wound on the outer side of the winding roller, the winding effect of the optical fiber is improved, and the winding effect of the optical fiber is improved. The problem that the optical fiber is damaged due to winding in the winding and unwinding processes is avoided, use of the device is guaranteed, winding can be achieved through rotation of an output shaft of a motor in the cooling fan when the optical fiber is wound, manual winding is not needed, and the labor intensity of workers is reduced.

The utility model provides double-sensing fusion river and lake inspection unmanned aerial vehicle equipment, which mainly comprises an unmanned aerial vehicle body with a multi-rotor structure, and a full-spectrum camera and a visible light camera which are arranged below the unmanned aerial vehicle body, and a controller is also arranged in the unmanned aerial vehicle body; a data processing unit, an image registration module, an alarm module and a communication module are arranged in the controller, during working, the double cameras synchronously collect full-spectrum and visible light images of river and lake areas, after data are transmitted to the processing unit, two-mode data are aligned through the image registration module, then a hidden sewage draining exit is recognized by means of a pre-trained YOLO model, and once recognition succeeds, the alarm module gives an alarm if the recognition succeeds. And sound-light alarm is triggered immediately and information is transmitted to a ground control station. According to the utility model, the structural design is novel, the two cameras work cooperatively, image registration and an advanced identification model are combined, and the hidden problem of the sewage draining exit is effectively solved. The equipment greatly improves the recognition accuracy and the inspection efficiency of the hidden sewage draining exit of the river and the lake, and has the functions of timely alarming and remote monitoring.

The present invention discloses a track clamp and an automatic force-enhancing track clamping system, which belong to the technical field of windproofing of large equipment. Aiming at the problem that the windproof device in the prior art has a complex structure and a general windproof effect, the present invention provides a track clamp, which includes a clamping part I and a clamping part II, wherein the clamping part I clamps one side of the track, and the clamping part II clamps the other side of the track, and the clamping part I and the clamping part II are respectively connected to a driving device through a clamp arm, and the clamping surface I is not completely in contact with the side of the track, and the clamping surface II is completely in contact with the other side of the track. While achieving track clamping, it also plays the role of separating the tracks, thereby ensuring the windproofing ability of the equipment on the track; the overall track clamp has a simple structure and is easy to operate; the automatic force-enhancing track clamping system can not only play the role of windproofing, but also can automatically adjust the pressure on the track in time when facing the strengthening of wind force, and the pressure of the two clamping surfaces on the track in the track clamp increases with the increase of wind force, thereby ensuring the windproofing and anti-skid ability and safety performance of the equipment.

The utility model discloses a broken bar alarm device, including mounting rack, contact alarm mechanism, transmission mechanism, height adjustment mechanism and convenient movement mechanism, contact alarm mechanism includes fixed axle, fixed axle is fixed connection in mounting rack inner side, fixed axle outside is provided with first limit wheel, the inside of first limit wheel is fixedly provided with pressure sensor. Through the arrangement of the contact alarm mechanism, materials need to be melted into strip-shaped objects, the strip-shaped objects are conveyed through the transmission mechanism and meanwhile are lapped on the pressure sensor in the first limiting wheel to be conveyed to the cutting equipment, and if the strip-shaped objects are broken, the strip-shaped objects cannot be lapped on the pressure sensor continuously; when a broken bar is broken, the pressure sensor starts the alarm lamp, the alarm lamp reminds a worker, the worker can stop the transmission mechanism through the stop button in time, the worker can handle the broken bar in time, and therefore waste is reduced.