7740 results about "Leather belt" patented technology

The utility model discloses an automatic tray distributing and loading machine for supporting boxes, which is easy to distribute trays without adhesion and meets the packaging of supporting boxes of multiple specifications, a supporting box adjusting assembly is arranged at one end of a machine body, a belt X-direction assembly is transversely arranged below the supporting box adjusting assembly, the belt X-direction assembly is used for receiving and transferring the supporting boxes falling from the supporting box adjusting assembly, and the belt X-direction assembly is used for receiving and transferring the supporting boxes falling from the supporting box adjusting assembly. The tray arranging synchronous belt assembly is arranged at the other end of the machine body, located above the belt X-direction assembly and used for sequentially sub-packaging materials into the supporting boxes in the belt X-direction assembly, and the side moving assembly is arranged at the discharging end of the belt X-direction assembly. The lateral moving assembly is used for transferring the supporting box filled with materials. The support separating machine can be widely applied to the field of support separating machines.

The invention relates to the technical field of belt conveyors, and discloses an intelligent tensioning control method and system for a belt conveyor. According to the method and system, a dynamic mathematical model is constructed by collecting the current, rotating speed and torque parameters of a driving motor and combining hydraulic cylinder pressure and turnabout drum bearing force data, and high-precision indirect estimation of belt tension is achieved; a progressive adjustment strategy is adopted, the displacement of the hydraulic cylinder is dynamically adjusted according to tension deviation, mechanical abrasion is reduced, and system reliability and severe environment adaptability are improved. The method has the beneficial effects that the tension control error is reduced, the hydraulic action frequency and the maintenance cost are reduced, and meanwhile, the operation efficiency and safety of the conveyor are improved.

The invention discloses metal bushing press-fitting equipment, which relates to the technical field of metal automatic assembly, and has the technical key points that the metal bushing press-fitting equipment comprises a bushing feeding mechanism: a discharge port of a vibration disc is connected with an inclined first feeding slideway and then connected with a positioning groove, the bottom of the vibration disc is provided with a strip-shaped turnover port and a transmission belt, a belt driving assembly drives the belt to operate, and the direction is vertical to the feeding direction; a height limiting rod is arranged on the position adjusting groove, so that the lining topples over, and the lower portion is funnel-shaped and connected with a second feeding slide way; the bottom of a second feeding slide way is connected with a to-be-taken groove, the width in the groove is equal to the outer diameter of the bushing, and a limiting plate and a bushing adsorption assembly are arranged at one end and form a rectangular groove; according to the press-fitting mechanism, a workbench is provided with a first positioning assembly, an upper fixing frame top beam is connected with a lifting press-fitting assembly through a translation assembly, and a bottom movable part is connected with a clamping assembly and used for taking the lining. According to the automatic press-fitting device, the positioning precision of feeding and taking can be improved, and the efficiency and effect of automatic press-fitting are guaranteed.

The utility model belongs to the technical field of carbon molecular sieve production equipment, and discloses a flower mud material crushing conveyor line which comprises crushing equipment, a bottom belt conveyor, an inclined lifting belt conveyor and a vibrating screen, a sunken main pit is formed in the workshop ground of a flower mud crushing station, the crushing equipment is installed in the main pit, and the inclined lifting belt conveyor is installed in the main pit. A feeding hopper of the crushing equipment is removed towards the outer side wall, and the bottom of the feeding hopper is connected through a horizontal steel plate, extends and is connected to the workshop ground in a lap joint mode. The bottom belt conveyor is horizontally connected below a discharge port of the crushing equipment, the bottom end of the inclined lifting belt conveyor is connected at the discharge end of the bottom belt conveyor, and the high end of the inclined lifting belt conveyor inputs crushed flower mud materials to a feed port of the vibrating screen. According to the flower mud material crushing conveying line, crushing equipment is installed in a pit mode, the feeding difficulty is lowered, and the operation safety is improved.

The invention discloses an adjustable automatic feeder base, and relates to the technical field of feeder bases. Comprising a supporting base part, an adjusting piece is installed on the supporting base part, and the adjusting piece is used for being installed at the bottom of an automatic feeder frame through bolts; a detection adapter is mounted on the adjusting piece; a belt attaching part is mounted on the detection adapter; the belt laminating piece is used for laminating a belt of the automatic feeder; the belt attaching wheel can be attached to a belt to roll, an extrusion delay switch is automatically controlled, real-time detection can be achieved when the automatic feeder is kept in the running state, and a positioning electromagnet is controlled to magnetically attract and attach to the bottom of a wrench butt joint plate to conduct limiting work. The adjustable automatic feeder base solves the problem that an existing adjustable automatic feeder base is inconvenient to automatically limit shutdown operation and adjustment.

The invention relates to the technical field of photovoltaic panel welding, in particular to a workpiece feeding device of a bus bar welding machine, which comprises two fixing frames, feeding devices, a supporting device and a pushing device, the uniformly distributed feeding devices are mounted at the top of the fixing frames, the supporting device is arranged between the two fixing frames, and the pushing device is mounted on the top of the fixing frames. The device comprises a fixed frame, a driving motor, a driving shaft, a mounting frame, a fixed plate, a driving belt pulley, a driven belt pulley, a belt main body, a fixed shell, a supporting shell, a supporting wheel, a limiting plate, a threaded rod, a nut, a limiting rod, a rubber ring, a pushing spring and a dismounting main body, the driving belt wheel, the belt main body and the driven belt wheel can be driven to rotate through the driving motor and the driving shaft, the belt main body is attached to the supporting wheel so as to support the belt main body, the belt main body can be attached to the photovoltaic module all the time, and stable feeding of the photovoltaic module is guaranteed.

The invention discloses a conveying device and method for aluminum profile production, and relates to the technical field of aluminum profile conveying, the conveying device comprises a conveying assembly, a polishing assembly, a cleaning assembly, a wiping assembly and an adjusting assembly, and the adjusting assembly is used for adjusting the positions of the polishing assembly, the cleaning assembly and the wiping assembly; the aluminum profile conveying assembly is matched with the aluminum profile conveying operation of the conveying assembly. The conveying assembly comprises a conveying rack, a driving roller and a driven roller, a conveying belt is wound on the driving roller and the driven roller, a conveying motor is installed on the conveying rack, and the conveying motor is used for driving the driving roller to rotate so that the conveying belt can drive the aluminum profile to move in the first direction; the polishing assembly is used for polishing the side wall of the aluminum profile, the cleaning assembly is used for cleaning the polished aluminum profile, and the wiping assembly is used for wiping the cleaned aluminum profile. The problem that in the prior art, a conveying device is single in function is solved.

The invention relates to a film covering process of a butyl rubber plug, which belongs to the technical field of butyl rubber plug preparation and is characterized in that during processing, in the same way as the prior art, a bonding surface of a film belt used for being bonded with a mixed rubber sheet needs to be activated, and then the bonding surface of the film belt is bonded with one side surface of an unvulcanized mixed rubber sheet; the film belt covers and is fixed on the mixing rubber sheet in an adhesion manner, and the key point is that in the covering and fixing process, the film belt is conveyed forwards in a manner of floating on a flowing liquid surface, and is attached and fixed with the mixing rubber sheet above the film belt in the conveying process, so that the film belt is prevented from being pulled by a conventional belt similar to a belt in belt transmission; and the film belt is prevented from being torn and damaged. The film laminating process can prevent the film belt from being torn due to mechanical traction and pulling as much as possible, and the processing process is convenient and reliable.

The utility model relates to the technical field of storage carrying, in particular to an integrated loading, unloading and carrying device matched with a storage shelf. Comprising a goods shelf, a U-shaped frame, a second rectangular frame, a belt conveyor and a plane driving mechanism. The plane driving mechanism comprises an installation frame installed on the side portion of the goods shelf, a sliding cross beam installed on the installation frame in a sliding mode and a first rectangular frame installed on the sliding cross beam in a sliding mode. The U-shaped frame is slidably mounted at the upper end of the first rectangular frame; a first clamping mechanism is mounted on the U-shaped frame; the second rectangular frame is positioned below the first rectangular frame; a second clamping mechanism is mounted on the second rectangular frame; the belt conveyor is located on one side of the bottom of the goods shelf. According to the technical scheme, goods placed on the goods shelf can be taken out and fed, the next goods can be taken out synchronously in the taking and feeding process, and therefore the goods taking work efficiency is improved.

The invention belongs to the technical field of conveying devices, and particularly relates to a self-adaptive deviation rectifying type feeding mechanism which comprises a workbench, a containing platform is arranged at the upper end of the workbench, two symmetrically-distributed conveying rollers are rotationally connected to the upper end of the containing platform through two sets of mounting plates, and a conveying belt is arranged between the two conveying rollers; the side end of each group of mounting plates is fixedly connected with a driving motor for driving the two conveying rollers to rotate synchronously; the limiting mechanism is used for limiting the conveying belt to prevent the conveying belt from deviating towards the two sides; and the self-adaptive deviation correcting mechanism is used for pushing the conveying belt back to the center position when the conveying belt deviates towards the two sides. By means of the synergistic effect of the first-stage friction adjusting mechanism and the second-stage friction adjusting mechanism, the PLC can dynamically adjust the friction coefficient of the guide vertical roller and the belt according to a load signal fed back by the pressure sensor, the service life of the belt is prolonged, and meanwhile energy consumption generated by load fluctuation of the driving motor is reduced.

The invention belongs to the technical field of inspection robots, and particularly relates to an electric inspection robot dog with an inspection mechanical arm, the electric inspection robot dog comprises a robot dog body, the mechanical arm is mounted on the rear side of the top of the robot dog body, and an electromagnetic sensor probe assembly is mounted at the free end of the mechanical arm. The electromagnetic sensor probe assembly comprises a detection head, a detection contact piece, a fixing plate, a carrier roller, a telescopic rod, a supporting spring, a U-shaped frame and a cleaning assembly. Through the arrangement of the cleaning assembly, when accumulated snow on the surface of the cable needs to be cleaned and a mechanical arm drives cleaning plates to make contact with the surface of the cable, a driving motor can drive a driving screw to rotate through a transmission belt, so that the two cleaning plates move in the direction away from each other along the surface of the cable; therefore, accumulated snow attached to the surface of the cable is scraped, and the detection operation of the detection head is prevented from being blocked by the accumulated snow.

The invention discloses road surface cleanliness detection equipment, and belongs to the technical field of road surface cleanliness detection.The road surface cleanliness detection equipment comprises a detection box and a collection box rotationally installed on the detection box, a supporting assembly is installed on the detection box, a rotating assembly is installed on the supporting assembly, a cleaning belt is installed on the rotating assembly, and a sweeping brush is installed on the cleaning belt; a vibration motor is installed on the detection box, an elastic telescopic assembly is installed on the detection box, and a tiling plate is installed at one end of the elastic telescopic assembly. By arranging moving wheels, pushing a detection box and moving the detection box through the moving wheels, a second motor is started to drive a main belt pulley to rotate, the main belt pulley drives an auxiliary belt pulley to rotate through a belt when rotating, then a transmission roller can be driven to rotate, and the transmission roller can drive a cleaning belt to rotate when rotating. And when the cleaning belt rotates, the cleaning brush can be driven to rotate, so that articles on the road surface can be cleaned and collected, and the articles are swept into the collecting box through the cleaning brush to be collected.

The invention discloses an automatic nanocrystalline steel strip feeding device which comprises a machine box, a skip car is arranged on one side of the machine box, a telescopic disc changing mechanism is arranged on the machine box, a plate positioning mechanism is arranged on one side of the telescopic disc changing mechanism, a three-axis feeding mechanism is arranged above the plate positioning mechanism, and an impedance measuring mechanism is arranged on one side of the plate positioning mechanism. A scrap suction mechanism is arranged on one side of the impedance measuring mechanism, a conveying belt is arranged on one side of the scrap suction mechanism, and a grabbing and feeding mechanism is arranged above the conveying belt. The invention further discloses an implementation method of the automatic nanocrystalline steel strip feeding device. The clamping jaw assembly is provided with the inner clamping jaw and the outer clamping jaw, and the inner clamping jaw and the outer clamping jaw are both in flexible contact with the steel belt product in the clamping process, so that damage to the steel belt product can be avoided.

The invention discloses a belt conveyor belt detection device and a using method thereof, and relates to the technical field of belt detection.The belt conveyor belt detection device comprises a tensile testing machine body, a detection mechanism is arranged on the tensile testing machine body and comprises a detection control box, and the detection control box is fixedly connected to one side of the tensile testing machine body; the movable cross beam is located in the middle of the tensile testing machine body, the fixed cross beam is fixedly connected to the bottom of the tensile testing machine body, the bottom of the movable cross beam and the top of the fixed cross beam are both connected with driving assemblies, and tension sensors are arranged between the movable cross beam and the corresponding driving assemblies and between the fixed cross beam and the corresponding driving assemblies. The clamping mechanism is fixedly connected to one side of the driving assembly. According to the rotatable clamping assembly, a proper clamp assembly can be conveniently selected according to the outline of a belt, so that better clamping and fixing are facilitated, and meanwhile, the clamp assembly can be conveniently replaced after being abraded or damaged.

The utility model relates to the technical field of flexible board processing, and relates to an FPC feeding device. A material frame loaded with flexible plates is conveyed to the material taking station through the conveying track, after the material blocking assembly blocks and positions the material frame, the jacking assembly jacks and positions the material frame on the material taking station to conduct flexible plate discharging, meanwhile, partition paper between two flexible plates is placed in the material frame of the discharging station, and after flexible plate discharging is completed, the partition paper is placed in the material frame of the discharging station. The lifting component drives the transfer belt line to ascend to move the material frame on the conveying rail to the material receiving height the same as the material receiving height of the discharging rail, the transfer belt line drives the material frame to be conveyed to the discharging rail, and therefore conveying and feeding of the FPC flexible board are completed, an operator only needs to add the material frame loaded with the flexible board, and the operation is convenient. The workload and the working intensity of operators are reduced to the maximum extent, and feeding of the flexible plates and recycling of the partition paper are facilitated.

The utility model relates to a light-weight cross-belt sorting trolley, which belongs to the field of logistics sorting and aims at respectively carrying out light-weight and weight-reduction design on an upper conveying unit and a lower conveying unit and providing a quick assembly mode between the upper conveying unit and the lower conveying unit so as to adopt a more compact and simplified connection means on an interconnection structure. Therefore, the lightweight and modular design is realized, the load upper limit and the use efficiency are improved, and meanwhile, the workload of installation, debugging and maintenance is reduced. Comprising an upper conveying assembly and a lower walking assembly which are fixedly connected in the vertical direction, the upper conveying assembly comprises a first side plate and a second side plate which are oppositely arranged, and a profile connecting plate, a first pull rod, a second pull rod, a belt supporting plate, a servo electric roller and an unpowered roller are fixedly connected between the inner side of the first side plate and the inner side of the second side plate; the trolley belt runs between the servo electric roller and the unpowered roller in a closed-loop winding mode and runs above the belt supporting plate in the vertical direction.

The invention relates to the technical field of bulk material conveying of belt conveyors, and discloses a belt conveyor with a fully-sealed guide chute, which comprises a supporting mechanism, the supporting mechanism comprises a base, the outer surface of the base is fixedly sleeved with a fixing frame, and the outer wall of one side, far away from the base, of the fixing frame is fixedly connected with a first motor; an adjusting mechanism is arranged at the output end of the first motor and comprises a second adjusting frame, a second telescopic rod pushes a sliding frame fixedly connected with the output end of the second telescopic rod to move, and the distance between the first driving roller and the second driving roller is synchronously adjusted by means of change of the position distance between the second telescopic rod and the second adjusting frame; and in the dynamic change process of the tensioning force of the conveying belt, a third telescopic rod pulls a first sliding block to drive an auxiliary roller to act synchronously, so that the real-time adjustment of the tensioning force of the conveying belt is completed, and it is ensured that the conveying belt is always in an adaptive tensioning state.

The utility model discloses an intelligent loading and unloading robot, and relates to the technical field of cargo loading and unloading, the intelligent loading and unloading robot comprises a material receiving and feeding assembly and a loading and unloading assembly, the material receiving and feeding assembly comprises a main frame, a driving wheel, a material pushing frame assembly, a transplanting mechanism, a loading and unloading lifting driving mechanism and a material receiving and feeding roller line, the loading and unloading assembly comprises a loading and unloading frame, a pushing mechanism, a conveying roller line, a transition belt, a loading and unloading tray and an unloading assembly, wherein the pushing mechanism, the conveying roller line, the transition belt, the loading and unloading tray and the unloading assembly are integrally arranged on the loading and unloading frame. The loading and unloading frame is fixed to the lifting end of the loading and unloading lifting driving mechanism. According to the intelligent loading and unloading robot, the material receiving and feeding assembly and the loading and unloading assembly are combined to form the intelligent loading and unloading robot for loading and unloading operation, and the intelligent loading and unloading robot is small in overall size, convenient to move, flexible to use, good in working cooperation, capable of completing loading and unloading operation, good in reliability and high in working efficiency.

The invention discloses an automatic workpiece overturning and feeding device, and belongs to the technical field of workpiece overturning and feeding, the automatic workpiece overturning and feeding device comprises a first belt conveyor and a second belt conveyor which have the same structure and are symmetrically arranged, and a rack is arranged between the first belt conveyor and the second belt conveyor; the front face and the back face of the inner wall of the rack are rotationally connected with hollowed-out frames through supporting shafts correspondingly, and a hollow rectangular baffle is fixedly connected between the opposite sides of the two hollowed-out frames. Through cooperative use of a hollow frame, a feeding roller type conveying mechanism, a discharging roller type conveying mechanism, a pushing mechanism, an energy storage type feeding driving mechanism, an energy storage type discharging driving mechanism, a first belt conveyor and a second belt conveyor, feeding and discharging operation and overturning operation of plate-shaped workpieces can be synchronously carried out without interference. The step of overturning and feeding of the plate-shaped workpieces is simplified, the waiting time of feeding and discharging operation and overturning operation is saved, and the continuity and efficiency of overturning and feeding of the plate-shaped workpieces are greatly improved.

The invention provides a temporary storage frame for an automobile part machining workshop. The temporary storage frame comprises a main support assembly and a conveying mechanism, and the main support assembly comprises a support, a vertical frame and a bearing part; wherein the vertical frame is arranged in the middle of the upper surface of the support, the bearing part is arranged on one side of the upper surface of the support, and the conveying mechanism is connected to one side of the vertical frame in a sliding mode; according to the device, the driving motor drives the conveying belt to move through the belt driving shaft, so that machined automobile parts are conveyed through the moving conveying belt, and then secondary conveying is conducted on the automobile parts through the pushing mechanism by means of power of the conveying mechanism; according to the conveying device for the automobile parts, the lifting mechanism can be used for driving the conveying mechanism to move up and down so as to convey the automobile parts into the temporary storage mechanism for temporary storage, manual placement is not needed, the conveying mechanism can be driven by the lifting mechanism to move up and down so as to control the conveying height of the automobile parts, then the automobile parts can be sequentially stacked in the temporary storage mechanism, and the working efficiency is improved.

The utility model relates to the technical field of transmission devices, and discloses an electronic component transmission device which comprises a belt line, support legs are arranged at the bottom of the belt line, a transmission belt is rotationally connected to the belt line, a positioning part is arranged on the outer ring of the transmission belt and comprises a positioning block, a tray can be inserted into the positioning block, and the positioning block is connected with the support legs. Stop blocks are further arranged on the two sides of the moving direction of the conveying belt, a cleaning part is further installed on the top of the belt line and comprises a soot blowing fan arranged above the belt line in a suspended mode, the included angle between the soot blowing fan and the belt line can be adjusted through the soot blowing fan, and the tray is made of foam. Vibration of the electronic components can be reduced through the tray made of foam, parts on the electronic components are prevented from being damaged due to vibration, the cleaning part can remove dust of the electronic components in the tray, the situation that the electronic components cannot operate normally due to dust is avoided, the dust blowing angle can be adjusted through the dust blowing fan, and then the dust blowing air speed is adjusted.

The invention relates to the technical field of wet desulphurization, in particular to a vacuum belt dehydrator which comprises an annular filter belt and filter cloth, a supporting side plate is arranged on the annular filter belt, and a first flushing mechanism is arranged on the supporting side plate; the first washing mechanism comprises a movable roller movably arranged on the supporting side plate and a spraying hole formed in the surface of the movable roller, and further comprises a butt joint pipe arranged at the end of the movable roller. The filter cloth passes through the first flushing mechanism, high-pressure water is conveyed into the movable roller through the butt joint pipe and finally sprayed out from the interiors of the spraying holes, the high-pressure water flushes to the surface of the filter cloth through the spraying holes and preliminarily flushes the surface of the filter cloth, the flushing angle can be continuously changed through rotation of the spraying holes, and the cleaning effect is improved; stubborn particles can be prevented from blocking pores of the filter cloth, and the dehydration efficiency reduction caused by blockage is avoided.

The utility model discloses a manual and electric dual-purpose winnowing machine which comprises a fan blade cavity, and the interior of the fan blade cavity is rotationally connected with a first rotating shaft. The motor is fixedly mounted in the fan blade cavity, the winnowing machine is driven by the motor through meshing of the two bevel gears, raw materials which do not need to be excessively refined can be rapidly treated in an electric mode, and the sorting efficiency is improved; a matching structure of a lead screw and a threaded block is fixedly mounted on the outer side of a fan blade cavity, and a gear and a belt are matched, so that the winnowing machine can be manually driven, the rotating speed of a handle can be manually controlled in a manual mode, and the wind power and the rotating speed are more accurately controlled manually; and fine raw materials needing to be specially treated are sorted more finely, so that the manual or electric mode can be flexibly selected according to needs, and the working requirements in different environments are met.

The invention belongs to the technical field of air purification devices, and particularly relates to an energy storage electric field purification device which comprises a shell, the outer surface of the shell is communicated with an air outlet nozzle, and the surface of one side of the shell is fixedly connected with a filter screen. In the embodiment, the motor transmits kinetic energy to the fried dough twist stick through the driving wheel, the driven wheel, the first belt, the supporting column, the transmission gear, the driven gear, the connecting plate, the second belt and the force guiding wheel, the fried dough twist stick rotates after being stressed, a groove in the outer surface is matched with a guiding block, so that a connecting rod drives a sliding block to reciprocate on the outer surface of a sliding rail, and the sliding block drives a fixing plate to move; dust adsorbed on the outer surface of the dust collecting plate is pushed by the cleaning brush to enter the dust collecting bag through the two feeding frames and the two connecting frames, the dust is prevented from being accumulated on the outer surface of the dust collecting plate, the outer surface of the dust collecting plate is automatically cleaned, manual operation is not needed, and the use experience is improved.

The invention provides a belt anti-tearing control method and system. The belt anti-tearing control method comprises the steps that S1, the linear relation between the bearing load of a belt conveyor and the current of a motor is obtained; s2, sequentially setting a first current interval, a second current interval and a third current interval from small to large; s3, when the current of the motor is in the first current interval, the material leading-in speed of the starting end of the belt conveyor is maintained, and the belt conveyor continues to work; s4, when the current of the motor is in a second current interval, the material leading-in speed of the starting end of the belt conveyor is slowed down, and the belt conveyor continues to work; and S5, when the current of the motor is in a third current interval, the materials are stopped from being guided into the starting end of the belt conveyor, and the belt conveyor continues to work. By means of the belt anti-tearing control method, the situation that the load borne by the belt conveyor is too large can be avoided, then the belt can be effectively prevented from being torn, and the service life of the belt is prolonged.

The invention discloses pile planting equipment, and relates to the technical field of pile planting, the pile planting equipment comprises a mounting frame and a clamping mechanism, the top of the mounting frame is provided with a positioning mechanism, the outer side of the positioning mechanism is provided with a cleaning mechanism, the positioning mechanism comprises a mounting box, and the outer side of the mounting box is fixedly connected with a servo motor. According to the pile planting equipment, through a transmission system composed of a servo motor, a first threaded rod, a second threaded rod, a first bevel gear, a second bevel gear, a rotating rod, a transmission wheel and a belt, a first threaded block and a second threaded block are driven to drive a supporting rod and a positioning block to move synchronously, and four-direction synchronous automatic centering of a pile body is achieved; compared with the prior art, pile bodies with different hoisting precisions can be forcibly and automatically corrected and limited at the theoretical center position of the pile planting through hole of the mounting frame, a clamping reference is provided for a subsequent clamping mechanism, the problems of unstable clamping, connector butt joint failure and the like caused by pile body deflection are fundamentally avoided, and the pile planting connection precision and the operation reliability are greatly improved.

The utility model relates to a belt slip detection protection device which comprises a speed measuring mechanism and a controller, the speed measuring mechanism comprises a fixed support, the fixed support is arranged on the inner side of a belt of a belt conveyor, a crank arm is installed on the fixed support, one end of the crank arm is rotatably connected with the fixed support, and the other end of the crank arm faces the surface of the belt and is provided with a synchronous wheel. The synchronous wheel is rotatably connected with the crank arm, a tension spring is further installed between the fixing support and the crank arm and used for pressing the synchronous wheel on the surface of a belt, a plurality of sensing parts are evenly distributed on the synchronous wheel along the circumference, a supporting rod is installed on one side of the crank arm, a photoelectric sensor is installed on the supporting rod, and the photoelectric sensor corresponds to the circumferential line position where the sensing parts are located. The photoelectric sensor is used for detecting the rotating speed of the synchronous wheel and is in signal connection with the controller, and the controller is in signal connection with a main control system of the belt conveyor; according to the utility model, whether the belt slips or not is effectively detected, and the conditions of heavy slipping and light slipping can be distinguished.

An extendable animal leash incorporates an advanced quick release functionality within its design. Housed in an ergonomic casing for comfortable handling, the leash can be swiftly disconnected using a quick leash release button. This button triggers a mechanism involving either a pull-pin connected to a cord, string, or cable, or a magnetic pull-pin activated by a magnetic force. Upon engagement, the quick release mechanism allows the leash to detach from the housing, providing immediate separation. The leash itself, made from durable materials like nylon, polyester, or leather, is retracted by a spring recoil mechanism. Additionally, the housing features a spool locking button for setting the leash length and ensuring controlled retraction. Constructed from lightweight and durable materials such as plastic or aluminum, the housing is designed for easy opening, facilitating maintenance and reassembly of the quick release components.