49results about "Engineering emergency devices" patented technology

The invention relates to a Stewart six-dimensional force sensor, six branch chain rods distributed in an inclined manner are arranged between an upper platform and a lower platform, each branch chain rod comprises an upper rigid rod, an upper cross flexible hinge, a measuring unit, a lower cross flexible hinge and a lower rigid rod which are sequentially connected from top to bottom, the upper rigid rod is fixedly connected with the upper platform, and the lower rigid rod is fixedly connected with the lower platform. And the lower rigid rod is fixedly connected with the lower platform. A calibration device is used for calibrating a Stewart six-dimensional force sensor. The invention relates to a Stuart six-dimensional force sensor calibration method, which comprises the steps of off-line calibration and training and on-line measurement and calculation. The Stewart six-dimensional force sensor has the advantages of being large in rigidity, high in bearing capacity, stable in structure, fast in dynamic response, high in precision, good in isotropy and the like, and solves the problem that a traditional linear algorithm cannot process complex nonlinear errors. The measurement precision is reduced due to serious inter-dimensional coupling; and the complexity of a high-precision model is too high and the high-precision model is difficult to run in real time in an embedded system.

The invention relates to a method and a device for monitoring the position of a shaft of a test bench, wherein the shaft is accommodated in an enclosure which substantially encloses at least part of the shaft in the circumferential direction, wherein the enclosure has an inner surface facing the shaft and the inner surface is arranged so that it does not touch the shaft in an intended position of the shaft, wherein at least one conductor loop is arranged on the inner surface and transmits an electrical signal, preferably a closed-circuit current.

The utility model provides a hydraulic press safety grating device which is easy to disassemble and assemble, and relates to the technical field of safety gratings. The utility model comprises a connecting seat, one side of the connecting seat is provided with two grating bodies, the two grating bodies are respectively a transmitting end and a receiving end, a cleaning device is provided on the transmitting end side of the grating body, a connecting device is provided between the grating body and a base, the cleaning device comprises a motor, the motor is fixedly connected to the side of the grating body close to the transmitting end, and a driving gear is fixedly connected to the output end of the motor. The utility model can quickly clean the transmitting end surface of the grating body by arranging the cleaning device, reduces the situation that dust and debris adhere to the transmitting end surface of the grating body and block the transmitting light source, causing the receiving end to be unable to receive signals and affecting the normal use of the grating body, and improves the use efficiency of the grating body and the convenience of cleaning the transmitting end surface.

The presently described technology relates to a system having a housing and an optical circuit disposed in the housing. The optical circuit has an emitter configured to emit an emitted optical signal and a receiver configured to receive a received optical signal. An optical transmission pathway extends from the emitter to the receiver. The optical transmission pathway is indirect. A manual actuator is coupled to the housing having an engaged position and a disengaged position. A baffle is fixed to the manual actuator, where the baffle obstructs the optical transmission pathway when the manual actuator is in the engaged position and the baffle is clear of the optical transmission pathway when the manual actuator is in the disengaged position.

The invention relates to the technical field of anti-falling equipment, and provides a universal anti-falling mechanism suitable for comprehensive transportation junction security equipment, which comprises an outer shell, an inner shell, a wire wheel assembly and a rack jacking mechanism, the bottom of the inner shell is connected with one end of the buffer spring, and the other end of the buffer spring is arranged at the bottom of the outer shell; the wire wheel assembly is arranged in the inner shell, the wire wheel assembly comprises a wire wheel part, rotating shafts and rotating gears, the rotating shafts are connected to the two sides of the wire wheel part, the rotating shafts are rotationally connected with the opposite side walls of the second mounting space, and the rotating gears are arranged on the two sides of the wire wheel part; the rack jacking mechanism comprises a pair of rack assemblies which are oppositely arranged, each rack assembly is provided with a rack structure, each rack structure is meshed with the corresponding rotating gear on the corresponding side, and each rack assembly is provided with a jacking rod. Kinetic energy in the descending process of the security and protection equipment is converted into friction force between the traction ropes through the traction ropes, and the kinetic energy in the descending process can be converted into kinetic energy of the rotating gear.

An actuator transfer assembly comprising an actuator (18), a driven object (16, 116), a pushrod (19) or shaft (119), a disconnect housing (24, 124), a transfer member (50) movable relative to the housing from a first position in mechanical engagement with the pushrod or shaft such that the housing translates or rotates with the pushrod or shaft and a second position in mechanical disengagement from the pushrod or shaft such that the housing does not translate or rotate with the pushrod or shaft, a bias element (34) biasing the transfer member towards the first position, and a retainer (44, 53) configured to automatically retain the transfer member in the second position when the transfer member moves from the first position, wherein the transfer member is configured to move from the first position to the second position when a force on the pushrod or a torque on the shaft exceeds a predetermined threshold breakout force or torque.

The present application provides a drilling rig chain break protection method and device, wherein the drilling rig chain break protection method includes: collecting the target drilling rig's sheave status data in real time according to a preset sensor; determining the sheave speed data according to a preset speed algorithm based on the sheave status data; generating a shutdown command and an early warning command when the sheave speed data meets the preset chain break condition; in response to the shutdown command, the target drilling rig stops running, and in response to the early warning command, a preset early warning device issues a chain break warning. This avoids safety accidents caused by the breakage of the hoisting chain of the drilling rig, and notifies the hoisting chain breakage through the early warning device, reminding relevant personnel to inspect and repair the hoisting chain, which is conducive to the construction of intelligent mines and the realization of unmanned equipment operation.

The system comprises a mounting frame suspended above a ground level. The system comprises a modular panel configured to removably attach to the mounting frame and removably interconnect with other modular panels to form a barrier. The modular panel comprises multiple ballistic sub-panels that are configured to removably attach to the modular panel and interconnect with each other to increase the surface area of the modular panel and where each ballistic sub-panel is constructed of a ballistic-resistant material. The system comprises a ballistic detection system comprising at least one sensor configured to detect a ballistic event. The ballistic detection system comprises a notification system configured to communicate a notification to an emergency service in response to the ballistic event. The ballistic detection system comprises a controller configured to determine the severity of the ballistic event and activate the notification system and a power supply.

A mobile rescue device, in particular a spreading device, includes a cutting device, or a combined device having a spreading and a cutting function, including a base body and a working device arranged at the base body. At the mobile rescue device, a deactivation device is formed for deactivating the working device in the event of theft.

The invention relates to a vehicle (1) comprising: means for approaching a load; means for remotely detecting an obstacle, capable of scanning a detection zone (8); means for collecting kinematic data, intended to collect one or more items of data relating to the kinematics of the vehicle (1); a processing unit (16) intended to define a surveillance zone inside the detection zone (8), the shape of the surveillance zone being calculated by the processing unit (16) according to the kinematic data provided by the collection means. In addition, the vehicle (1) comprises means for the contact-based detection of obstacles, arranged on a portion of the vehicle (1) intended to face the load to be to be approached during an approach manoeuvre, and braking means intended to stop the vehicle (1) as soon as an obstacle is struck by the contact-based obstacle detection means.

The utility model discloses a system for protecting equipment after bearing failure and mechanical equipment, the system is characterized in that a switch of a switch element is arranged in an equipment power supply system, and a coil of the switch element is connected with a detector and a power supply to form a power supply loop; the cutting element is arranged on the equipment driving shaft, the coil is arranged on one side of the cutting element and is opposite to the cutting element, the cutting element is installed on the equipment driving shaft, when a bearing fails, the equipment driving shaft can radially deflect while rotating, and when the radial deflection amplitude exceeds a preset distance value, the cutting element can cut the detector so that a power supply loop of the coil can be disconnected. And the equipment power supply system stops outputting electric energy, and the equipment starts shutdown protection. The system can realize shutdown protection of the mechanical equipment at the initial stage of bearing failure, improves the use safety of the mechanical equipment, reduces the frequency of shutdown inspection and maintenance of the equipment, effectively reduces the maintenance cost of the mechanical equipment, and has the advantages of low cost and convenience in installation.

The invention relates to a safety device (1) for an agricultural machine comprising: a control unit (2) with a processor; a signal input device (3) that is operable to receive a status signal indicating an operating state of the agricultural machine and to receive an enable signal; and a switching device (14) that is operable to interrupt and close a supply line (9) to a power supply of an actuator (7) of the agricultural machine and an electronic control unit associated with the actuator (7) in response to control signals from the control unit (2).The control unit (2) is operable: In response to the receipt of the status signal in the control unit (2), it is determined by evaluating the status signal whether a safe operating state exists for the agricultural machine in which the actuation of an actuator (7) of the agricultural machine is to be blocked; it is activated a safe state if, upon evaluation of the status signal, it is determined that the safe state exists; it provides a first control signal to interrupt the supply line (9) for transmission to the switching device (14) while the safe state is activated; and in response to the receipt of the enable signal in the control unit (2), it is deactivated, whereby, when deactivating by means of the control unit (2), a second control signal to close the supply line (9) for transmission to the switching device (14) can be provided.Furthermore, a method for operating the safety device (1) and an agricultural machine are provided.

The invention discloses a special-purpose embedded automatic clutch for a raising machine, comprising a clutch mounting shaft and a sprocket mounting sleeve; a passive sprocket is fixedly arranged at the front end of the sprocket mounting sleeve, and the passive sprocket is connected with a cleaning roller sprocket of the raising machine through a chain; a clutch passive component is fixedly arranged at the middle part of the sprocket mounting sleeve, and a compression spring matched with the clutch passive component is arranged on the sprocket mounting sleeve at the rear part of the clutch passive component; a clutch active component meshed with the clutch passive component is arranged on the sprocket mounting sleeve between the clutch passive component and the passive sprocket, and the clutch active component is mounted on the sprocket mounting sleeve through a bearing, and a driving sprocket is arranged on the outer surface of the clutch active component, and the driving sprocket is connected with a power source sprocket of the raising machine through a chain; after the meshing surfaces of the clutch active component and the clutch passive component are separated, they mesh again every 120° between each rotation, effectively protecting the cleaning roller and the clutch from damage, and greatly improving the stability of the raising machine.

The present invention sets forth an electric lift table-based anti-collision control system and an anti-collision method therefor, the system comprising a lift table, an electric lift table control box disposed on the lift table and a single chip microcomputer disposed within the electric lift table control box; the present system is characterized in that: the electric lift table control box is internally provided with an accelerometer and a gyroscope chip, and the accelerometer and the gyroscope chip move synchronously along with the lift table; the accelerometer and the gyroscope chip exchange information with the single chip microcomputer, and perform movement control on the lift table by means of the single chip microcomputer. The beneficial effects of the present invention are as follows: the described system effectively achieves resistance detection by means of providing the accelerometer and the gyroscope chip, has higher sensitivity and more reliable operation, and perceives slight angle variations or acceleration variations when the lift table meets resistance, and thereby determines whether resistance is met during the operation of the lift table.

The presently described technology relates to a system having a housing and an optical circuit disposed in the housing. The optical circuit has an emitter configured to emit an emitted optical signal and a receiver configured to receive a received optical signal. An optical transmission pathway extends from the emitter to the receiver. The optical transmission pathway is indirect. A manual actuator is coupled to the housing having an engaged position and a disengaged position. A baffle is fixed to the manual actuator, where the baffle obstructs the optical transmission pathway when the manual actuator is in the engaged position and the baffle is clear of the optical transmission pathway when the manual actuator is in the disengaged position.

A driveshaft system, having a driveshaft having a first shaft end and a second shaft end; a first diaphragm coupling at the first shaft end and a second diaphragm coupling at the second shaft end; and at least one tension member extending within the driveshaft, between the first diaphragm coupling and the second diaphragm coupling.

An emergency stop device for a machine or industrial plant comprises an emergency button, a rigid protective element close to the emergency button and light signalling means designed to generate a light signal associated with said protective element, wherein the protective element comprises at least one signalling portion which is transparent or translucent with respect to the light signal.

The utility model aims to provide a lubricating oil level control and alarm device for a cross beam bushing of a crusher, aiming at the problems existing in the conventional lubricating technology of the cross beam bushing of the crusher. The device comprises an oil tank, an oil pump, an oil pipe, an electronic liquid level meter, a PLC and an audible and visual alarm. The oil tank is connected with a crusher beam bushing through an oil pipe, and the oil pump is located at an outlet of the oil tank and connected with the PLC through signals. The electronic liquid level meter is arranged in a crusher cross beam bushing and is in signal connection with the PLC; the audible and visual alarm comprises an on-site audible and visual alarm and a control room audible and visual alarm, the on-site audible and visual alarm is in signal connection with the PLC, and the control room audible and visual alarm is in signal connection with the PLC through the upper computer. The device is used for automatically controlling the oil level of the bushing and carrying out alarm and interlocking protection on abnormal change of the oil level, so that the problems of low accuracy of manual oiling of lubricating oil of the crossbeam bushing of the crusher and jump stop of the crusher caused by low oil level are avoided.

A power tool is provided including: a tool housing; a motor disposed within the tool housing; a battery receptacle arranged to be coupled to a battery pack having a rated capacity; a power switch circuit disposed between the battery receptacle and the motor; and a controller that controls the power switch circuit to drive the motor. The controller is configured to: determine or receive a pack ID associated with the rated capacity of the battery pack; set a braking profile for electronically braking the motor based on the pack ID; and apply an electronic brake to the motor in accordance with the set braking profile upon detection of an event associated with stoppage of the motor.

The system comprises a mounting frame suspended above a ground level. The system comprises a modular panel configured to removably attach to the mounting frame and removably interconnect with other modular panels to form a barrier. The modular panel comprises multiple ballistic sub-panels that are configured to removably attach to the modular panel and interconnect with each other to increase the surface area of the modular panel and where each ballistic sub-panel is constructed of a ballistic-resistant material. The system comprises a ballistic detection system comprising at least one sensor configured to detect a ballistic event. The ballistic detection system comprises a notification system configured to communicate a notification to an emergency service in response to the ballistic event. The ballistic detection system comprises a controller configured to determine the severity of the ballistic event and activate the notification system and a power supply.

The protection and control device (1) for the access to processing machines comprises: one base frame (2) which can be located in the proximity of an access (B) to a processing machine (A); one door element (3) constrained to the base frame (2) and movable by sliding along a substantially vertical direction of movement (4) between at least: - one closing position wherein the door element (3) is lowered to close the access (B); - one opening position wherein the door element (3) is lifted to clear the access (B); blocking means (7) adapted to block the descent of the door element (3) between the opening position and the closing position, the door element (3) abutting against at least one obstacle (C) along the direction of movement (4).

A mineral material machining plant includes a hydraulic element including a connection area and a passage opening. An overload protection device includes a replaceable burst panel covering the passage opening. The burst panel includes a rear face, at least one bore, and at least one recess having a lateral insertion section open towards one side of the burst panel. A burst panel holder engages the rear face. In an assembled condition at least one fastening bolt passes through a bolt mount of the burst panel holder, the bore of the burst panel, and is threaded into a threaded mount of the connection area. In a disassembled condition at least one retaining element connects the burst panel holder to the hydraulic element and can be inserted laterally into and removed from the recess transversely to a plate plane of the burst panel.

The present invention relates to the technical field of agricultural irrigation, and discloses a low-load irrigation device, comprising a reel car, a sprinkler car, and a water pipe, wherein the reel car is rotatably connected to a water storage barrel, the water pipe is rolled up on the water storage barrel and communicated with the inside of the water storage barrel, the water outlet of the water pipe is connected to the sprinkler car, a locking device is also fixedly installed on the reel car, a transmission shaft is arranged above the locking device, a transmission chain is arranged between the transmission shaft and the water storage barrel, a lock is arranged on the lock, a lifting and translation structure is arranged between the lock and the lock, an encoder for controlling the lock distance is arranged inside the lock, an overload protection module is also arranged inside the lock, and the overload protection module is connected to the lifting and translation structure; when the water storage barrel rotates abnormally, the overload protection module can prevent the lifting and translation structure from being pushed and triggered to cause jamming when the lifting and translation structure is advanced or retreated, thereby greatly ensuring the safety and stability of the device.

An emergency tool stop device is provided. The device may be attached to any existing grinder and has a guard that partially encircles at least one cutting / grinding blade and incorporates a fastener mechanism for attaching components such as a disk brake, washer, cutting blade, and retaining nut. The washer prevents the brake from pressing on the blade, while the nut secures the assembly to the guard. Furthermore, the device is equipped with a brake lever that attaches to the grinder's handle with a fastener and connects to a brake pad via a cable. While using the grinder, the lever can be depressed while a user grips the handle of the grinder where the lever is installed. Once released (i.e., in the event of a drop) the lever activates the brake pad which stops the blade's rotation by bringing the brake pad into contact with the blade.

Guideway device (1), comprising a supporting structure (2) with two opposite side wall units (2.1, 2.2), each with a guide rail (13.1, 13.2); a drive device mounted on the support structure (2); and Steps (6) or pallets, wherein the steps / pallets (6) are guided on the guide rails (13.1, 13.2) and driven by means of the drive device via traction means (7) in order to form a moving travel path (5); wherein the steps / pallets (6) are determined in their position along the travel path (5) by the guide rails (13.1, 13.2) and the traction means (7); characterized in that below the steps / pallets (6) and at least over a section (5.1, 5.2, 5.3) of the travel path (5) at least one light barrier (15, 15.1, 15.2) runs parallel to a plane (17) spanned by the guide rails (13.1, 13.2), wherein the travel path device (1) is designed to prevent movement of the travel path (5) when at least one light barrier (15, 15.1, 15.2) is interrupted.

An emergency stop device 1 for a machine or industrial plant comprises an emergency button 12, a rigid protective element 13 close to the emergency button and light signalling means 17 designed to generate a light signal associated with said protective element 13, wherein the protective element 13 comprises at least one signalling portion 18 which is transparent or translucent with respect to the light signal.