153results about How to "Reduce rotation speed" patented technology

The invention discloses a liquid-cooled double-shaft-extension alternating current permanent magnet synchronous servo motor and a use method, and relates to the technical field of motors. According to the liquid-cooled double-shaft-extension alternating-current permanent magnet synchronous servo motor and the use method thereof, the two liquid cooling mechanisms can be driven to work along with rotation of two rotor shafts of the double-shaft synchronous rotor mechanism through mutual cooperation of the double-shaft synchronous rotor mechanism, the liquid cooling mechanisms, the cooling pipe mechanisms and the spiral heat dissipation pipes; the liquid cooling mechanisms are enabled to pump and drain cooling liquid, so that the cooling liquid in the cooling pipe mechanism, the spiral heat dissipation pipe and the two liquid cooling mechanisms circularly flows, heat generated by working of the motor can be taken away in time in the circulating flowing process of the cooling liquid, and meanwhile, along with rotation of the double-shaft synchronous rotor mechanism, the heat generated by working of the motor can be taken away in time. According to the motor cooling device, hot air in the shell can be rapidly pumped out, the motor is cooled by combining liquid cooling and air cooling, the cooling effect on the motor is greatly enhanced, and continuous normal operation of the motor is ensured.

The invention discloses rock core drilling sampling equipment for geological disaster investigation, and relates to the technical field of sampling, and the rock core drilling sampling equipment comprises a composite mechanism. According to the rock core drilling and sampling equipment for geological disaster investigation, through the design of a composite mechanism, the motor is connected with the butt joint block, and the drill rod is inserted into the inner side of the butt joint block, so that drilling and sampling are conducted on rocks, in the drilling process, the movable frame slides on the outer side of the sliding column so as to ascend and descend, and therefore the work requirement is met; a drill bit mechanism is arranged on the outer side of the drill rod, large rocks are crushed through the drill bit mechanism in the drilling process, meanwhile, rock blocks are guided to enter the inner side of the drill rod, so that a sample is taken out when the movable frame body is lifted subsequently, subsequent treatment is facilitated, and after sampling is finished, the drill bit mechanism is used for crushing the large rocks and guiding the rock blocks to enter the drill rod. When the sample is taken out from the inner side of the drill rod, the sample is taken out more cumbersomely and difficultly, the pushing and pressing mechanism is pressed by the electric push rod, so that the effect of discharging the sample is achieved, and normal operation of equipment is kept.

The utility model discloses a winding machine with a deviation rectifying function, and relates to the technical field of winding machines, the winding machine comprises a winding table, the winding table is connected with a winding assembly, the winding table is rotatably connected with a rotating roller and an adjusting roller, the adjusting roller is located between the rotating roller and the winding assembly, the winding table is connected with a detection probe, and the adjusting roller is located between the detection probe and the winding assembly. The winding table is connected with a driving assembly used for driving the adjusting roller to slide in the length direction of the adjusting roller, the winding table is connected with a controller, and the detection probe and the driving assembly are both electrically connected with the controller. The adjusting roller drives the thin film to return to the original position, so that the detection probe corresponds to the irradiation area of the thin film, the position of the thin film is convenient to adjust, and compared with shutdown manual recovery, the overall winding efficiency of the thin film is improved.

The invention relates to the technical field of constructional engineering, in particular to a cement concrete pavement paving device which comprises compaction transportation equipment, a mounting cylinder, a rotating shaft, a first spiral blade, a second spiral blade and a pushing rod, and the first spiral blade is fixedly connected to the rotating shaft in a sleeving mode; the number of the first spiral blades is two, and the two first spiral blades are arranged in a spaced mode and are opposite in spiral direction. The second spiral blade is slidably connected to the rotating shaft in a sleeving mode and has elasticity. The number of the second spiral blades is two, a spiral conveying channel is formed between the second spiral blades and the first spiral blade, the pushing rod is arranged on the compaction conveying equipment, and the end of the pushing rod is pushed between the two second spiral blades, so that when the compaction conveying equipment is used, when a laying route turns, the pushing rod can push the second spiral blades. And under the pushing of the pushing rod, the conveying capacity of the conveying channel located on the inner side is weakened, and the conveying capacity of the conveying channel located on the outer side is increased, so that the conveyed cement concrete changes in the radial direction.

The utility model discloses a self-locking type controller cabinet body, and particularly relates to the field of controllers, the self-locking type controller cabinet body comprises a control cabinet body and a cabinet door, one side of the cabinet door is rotatably connected with the control cabinet body, and a lock catch mechanism is arranged between the other side of the cabinet door and the control cabinet body; the top of the inner wall of the cabinet door is fixedly connected with an arc-shaped guide rail, the top in the control cabinet body is fixedly connected with a sliding block, the sliding block is in sliding connection with the arc-shaped guide rail, and a reset spring is fixedly connected between one end in the arc-shaped guide rail and the sliding block. The lock catch mechanism comprises an installation plate fixedly arranged on one side of the cabinet door, an installation shell corresponding to the installation plate is fixedly arranged on one side of the control cabinet body, a locking block is fixedly connected to the plate face, close to the installation shell, of the installation plate through a connecting rod, and a connecting hole corresponding to the locking block is formed in the installation shell. The cabinet door has the advantage that the phenomena that the cabinet door is forgotten to be closed and is not tightly closed are avoided.

The utility model relates to the technical field of lifting appliances, in particular to a lifting appliance rotating device of a container portal crane, which comprises a connecting seat and a rotating seat, the rotating seat is sleeved on the connecting seat, the connecting seat and the rotating seat are connected through a rotary support, a connecting disc is arranged on the connecting seat, and three mounting seats are uniformly distributed on the circumferential side wall of the connecting disc. The three mounting seats are respectively provided with a driving mechanism, a braking mechanism and a locking mechanism, and the connecting disc is connected with the inner ring of the rotary support. According to the utility model, the rotation of the rotating seat relative to the connecting seat is realized through the arranged driving mechanism so as to realize the rotation of the lifting appliance, the braking mechanism reduces the rotating speed of the rotating seat through the friction between the braking seat and the upper flange, and meanwhile, the locking rod of the locking mechanism is inserted into the locking hole of the upper flange so as to brake and lock the rotation of the rotating seat; the impact of the rotating inertia of the rotating seat on the rotary support, the driving gear and the driving motor is effectively reduced, damage is avoided, the service cycle is prolonged, and the use cost is reduced.

The utility model provides a charging pile inserting gun cable winding structure, and relates to the technical field of cable winding, the charging pile inserting gun cable winding structure comprises a charging pile stand column, a charging pile host and a waterproof platform, one end of the charging pile stand column is inserted and connected with a charging gun, one side of the charging pile stand column far away from the charging gun is fixedly connected with a winding assembly, the winding assembly comprises a winding roller, and the winding roller is fixedly connected with the charging pile host. One end of the winding roller is rotationally connected with a rotating frame, the end, away from the rotating frame, of the winding roller is fixedly connected with a fixing frame, the end, close to the fixing frame, of the rotating frame is fixedly connected with a rolling shaft, and when the cable is wound, the rolling shaft is driven to rotate by starting a motor, so that winding of the cable is achieved; the motor drives the rolling shaft and the limiting column on the rolling shaft to rotate, the limiting column extrudes the elastic piece while rotating, so that the elastic piece deforms and moves in the range of the groove, and according to the combined action of the elastic piece and the limiting column, the winding speed of the cable is reduced, and the winding length of the cable is fixed.

The invention discloses an interactive experience type urban landscape device and a construction method thereof.The interactive experience type urban landscape device comprises a mounting base, a support is arranged at the top of the mounting base, potted plants are arranged on the support, a bearing base is arranged on one side of the mounting base, and an interactive bicycle is arranged at the top of the bearing base; wheels of the interactive bicycle are in transmission connection with the potted plant through a transmission assembly, and the wheels are used for driving the potted plant to rotate when an observer rides the interactive bicycle. By arranging the mounting base, the interactive bicycle, the support and the transmission assembly, an observer can control the potted plant on the support to rotate by riding the interactive bicycle, the observer can conveniently view different positions of the potted plant on the support through interaction of the interactive bicycle and the transmission assembly, and on the other hand, the body building effect of the observer is achieved; and the interestingness and attraction of urban landscapes are improved.

The invention relates to the technical field of intelligent street lamps, in particular to an intelligent street lamp for municipal lighting. The lamp pole is fixed to the top face of the base, the section of the lamp pole is of a regular hexagon structure, and the interior of the lamp pole is hollow; the lifting sleeve is arranged on the lamp pole in a sliding and sleeving manner; the lamp is fixed on the lifting sleeve; the power supply seat is fixed at the top end of the lamp pole; the conductive structure is arranged on the lamp and the power supply seat; and the clamping structure is arranged at the top end of the lamp pole. Compared with the prior art, through the lifting design of the lamp, convenient lifting and stable fixing of the lamp are achieved, in the initial state, the lamp is stably fixed to the top end of the lamp pole, when overhaul and maintenance are needed, a worker only needs to rotate a hand wheel, a series of precise mechanical transmission can be used for driving an inserting rod to move out of an inserting groove, and the work efficiency is greatly improved. And in the process, a worker does not need to climb to a high position, and the operation difficulty and the safety risk are greatly reduced.

The application relates to the technical field of sodium fluorosilicate preparation, in particular to a device for continuously producing sodium fluorosilicate, which comprises a precipitation tank, a high-position tank one, a high-position tank two, a reaction box, a dissolving tank one and a dissolving tank two, a joint is fixed to the upper end surface of the precipitation tank, the precipitation tank is communicated with the high-position tank one through a pipeline, the bottom of the high-position tank one and the high-position tank two is communicated with the reaction box through a pipeline, and the high-position tank two is communicated with the dissolving tank one and the dissolving tank two through a pipeline; a stirring mechanism is arranged in the reaction box, the stirring mechanism comprises a stirring cavity which is arranged in the reaction box, and a sealing plate is screw-connected to the front end surface of the reaction box; the application is provided with the stirring mechanism and the crushing assembly; during the mixing reaction, block materials are generated; at this moment, the rotating speed of the motor is slowed down; the stirring blades are intermittently magnetically attracted through the electromagnets; the stirring blades are slightly displaced on the surface of the rotating shaft; and the block materials between the adjacent stirring blades are extruded and crushed.

The invention discloses a fan blade cleaning device for a wind driven generator, and particularly relates to the technical field of wind power generation. And by arranging the rotating mechanism, sustainable utilization of energy is achieved, the wind energy utilization efficiency is improved, the noise level is reduced, and interference to the environment is reduced. By arranging the buffer mechanism, the generator is prevented from being damaged due to too high rotating speed, and the effect of effectively reducing the rotating speed of the generator according to wind power in time is achieved. And by arranging the cleaning mechanism, dirt and insects on the fan blades of the wind driven generator can be cleaned up, so that the efficiency of the fan blades is recovered, and the performance of the wind driven generator is improved. And by arranging the spraying mechanism, liquid can be uniformly sprayed on the surfaces of the blades through a spraying device, and dirt and dust are thoroughly removed. And a scraper mechanism is arranged, and a scraper is in contact with the surface of the fan blade to scrape dust on the surface of the fan blade, so that the scraping cleanliness of the fan blade is improved.

The application relates to the technical field of flow channel cleaning, and discloses a dam water inlet flow channel floating object cleaning device which comprises a fixing plate arranged at a dam water inlet flow channel opening, a water inlet opening is formed in the fixing plate and communicates with the dam water inlet flow channel opening, a filter plate is arranged in the water inlet opening, fixed blocking strips are fixedly installed on the filter plate, a salvage mechanism for cleaning garbage and a driving mechanism for driving the salvage mechanism to work by using water flow are arranged on the fixing plate, the salvage mechanism comprises movable rods, limiting rods, U-shaped frames and a plurality of first arc-shaped fixed strips, a plug groove and a limiting groove are formed in the upper end of the fixing plate, and the movable rods and the limiting rods are movably installed in the plug groove and the limiting groove respectively. The dam water inlet flow channel floating object cleaning device aims to solve the problems that, in the prior art, accumulated floating objects in front of a dam are cleaned by manual work, the efficiency is low, there are hidden dangers, and tree branches are easily stuck on the filter screen under the impact of water flow and are difficult to clean.

The utility model relates to the technical field of lithium cell coating, in particular to a cell coating device. The device comprises an upper rubber roller, a lower rubber roller, a vertical driving mechanism, a battery cell film, a brake and a controller, the vertical driving mechanism is used for driving the upper rubber roller or the lower rubber roller to roll up and down on the front surface or the rear surface of the battery cell for film pasting when the front and rear surfaces of the battery cell move to the inlet of the film coating space; the cell film covers the inlet of the film coating space; when the battery cell enters the film coating space, the battery cell film moves along with the movement of the battery cell, the upper rubber roller and the lower rubber roller roll along with the movement of the battery cell, and the battery cell films are respectively adhered to the upper surface and the lower surface of the battery cell; the brake is connected with the tail end of the lower rubber roller and brakes the lower rubber roller to rotate when powered on. The lower rubber roller is released during power loss; the controller is used for controlling power-on and power-off of the brake. According to the battery cell film coating device, the speed ratio of the driving speed to the rubber roller braking speed can be flexibly controlled, the traction force of a battery cell film is increased, then the attaching force of a blue film and the surface of a battery cell is increased, and the product yield of the battery cell film coating procedure is guaranteed.

The utility model discloses a kind of storage basket and cabinet with self-stopping limiting mechanism, storage basket includes: basket, supporting mechanism and self-stopping limiting mechanism;Self-stopping limiting mechanism includes: installation shell, limiting ring and arc block, installation shell has installation cavity, arc block and limiting ring arc block are installed in installation shell, and the arc surface of arc block is in abutment with limiting ring, limiting ring is driven and moves by arc block;Self-stopping limiting mechanism is installed at the bottom of basket, supporting mechanism is provided with T-shaped block matched with self-stopping limiting mechanism, and the side recess of T-shaped block forms limiting clamping groove;Limiting ring is driven by basket and adapted to be in abutment with T-shaped block.The utility model is driven by setting self-stopping limiting mechanism, self-stopping limiting mechanism cooperates with T-shaped block, after rotating to specified position, it can reduce speed even stationary at specified angle, reduce the risk that storage basket is installed in corner position, cabinet door and basket collision after user closes cabinet door.

The utility model discloses a photovoltaic glass silicon-containing VOCs waste gas treatment device which comprises a treatment box, a gas inlet is formed in the outer surface of the treatment box in a penetrating mode, a liquid storage box is fixedly installed on the side surface of the treatment box, and a rotating sliding mechanism is arranged between the liquid storage box and the treatment box. And the adsorption solution stored in the liquid storage box is sprayed out by rotating the sliding mechanism, so that the solution can be in more sufficient contact with the waste gas. According to the treatment device for the silicon-containing VOCs waste gas of the photovoltaic glass, the waste gas is discharged into the treatment box through a gas inlet, then a driving motor drives a cam to rotate, a piston clamped with the cam is pulled to slide in a pump shell, a one-way valve is matched, when the piston is pulled by the cam to rise, treatment liquid is sucked into the pump shell, and the treatment liquid is discharged into the treatment box; the piston is pressed down through the cam, so that the treatment liquid is discharged out of the pump shell and sprayed into the treatment box through atomization of the atomization spraying disc, the contact area of the treatment liquid and the waste gas is increased, and the treatment effect of the waste gas is improved.

The utility model discloses a power transmission line bird repeller belongs to bird repeller technical field. A kind of power transmission line bird repeller, including the mounting frame of detachable connection on electric power tower, the top of mounting frame is provided with bird repelling component, bird repelling component includes rotating base rotation connection in the top of mounting frame, hemispherical cover body is fixedly connected on rotating base, the open end of hemispherical cover body is fixedly connected with reflector, friction block is slidably connected in rotating base, friction block and the circumferential surface of mounting frame are attached, rotating base is rotationally connected with force arm, one end of force arm is abutted with friction block, the other end of force arm is provided with counterweight piece;The utility model force arm cooperation friction block, so that the application can form passive deceleration effect under storm condition, friction block extrudes support rod to make rotating base rotation speed reduce, avoid hemispherical cover body fracture or bird repeller disintegration, prevent the problem of the appearance of the debris after disintegration threat power transmission line insulation safety.

The present invention belongs to the technical field of lamp coating, and discloses a composite coating device for automobile lamps, including a base, a sputterer fixedly connected to one side of the upper surface of the base, a coating box located on one side of the sputterer fixedly connected to the upper surface of the base, a servo motor output shaft end movably sleeved on the upper surface of the coating box, a first movable gear fixedly connected to the outer cylindrical surface of the output shaft end of the servo motor, a rotating rod movably sleeved on the middle part of the upper surface of the coating box, and a telescopic rod movably sleeved on the middle part of the rotating rod. The present invention, through the design of the disc, the rotating block and the brush rod, does not affect the normal coating of the lamps by the equipment when the equipment is running, and can clean the inner wall at the same time, which helps to ensure that the lamps will not be affected by foreign impurities during the coating process, so as to obtain a more uniform and high-quality coating effect.

The utility model discloses a placing support and relates to the technical field of supports, the placing support comprises a placing plate, a bottom plate, a rotating mechanism, an adjusting mechanism and a damping mechanism, one end of the bottom plate is rotatably connected with one end of the placing plate through the rotating mechanism; the adjusting mechanism comprises a supporting frame and a movable assembly, and the movable assembly is slidably arranged on the side, facing the containing plate, of the bottom plate in the first direction so as to be away from or close to the rotating mechanism relative to the bottom plate. The two ends of the supporting frame are rotationally connected with the movable assembly and the containing plate correspondingly. The damping mechanism comprises a fixing seat and an elastic part, the fixing seat is arranged on the side, facing the containing plate, of the bottom plate, a fixing groove extending in the first direction is formed in the fixing seat, the elastic part is contained in the fixing groove, the end, away from the rotating mechanism, of the elastic part is fixedly arranged, and the other end of the elastic part makes contact with the movable assembly in an abutting mode. Therefore, the movable assembly can compress the elastic piece in the moving process. The utility model aims to improve the damping hand feeling when the bracket is used and improve the use experience of a user.

The utility model relates to an experiment furniture embedded cabinet hopper which comprises an experiment table and further comprises a cabinet body installed in the experiment table, a groove is formed in the surface of the side end of the experiment table, sliding blocks are fixedly arranged on the two side walls of the cabinet body, and a storage rack is arranged at the bottom of the cabinet body; the cabinet body is embedded into a groove in the side end surface of the experiment table, sliding rails are arranged on the inner walls of the two sides of the groove, clamping grooves are formed in the bottoms of the sliding rails, and a gap is reserved between the cabinet body and the top of the groove; the cabinet body is used for storing and placing laboratory emergency supplies; a sliding rail, a sliding block and a clamping groove are arranged to adjust fixation and movement of the cabinet body; during daily use, the storage rack is rotated by applying pressure to take articles, the cabinet body can be lifted to slide out under emergency conditions, and then the cabinet body is transferred and used by the aid of the handle, so that laboratory emergency supplies can be stored, and experimenters can quickly receive the required emergency supplies under the emergency conditions; the device has the effect of improving the convenience of storing the emergency supplies in the laboratory and the safety of the laboratory.

The invention relates to the technical field of kitchen utensils, in particular to multifunctional foldable cooking equipment which comprises a base and a cover rotationally arranged on the base, a first heating assembly and a second heating assembly are arranged on the cover, a third heating assembly is arranged on the base, and the multifunctional foldable cooking equipment further comprises one or more cooking utensils for containing food; when the cover body is overturned and folded to the position above the base, a cooking cavity is formed between the cover body and the base, the third heating assembly heats food in the cooking cavity, the cooking utensil can be placed above the cover body, and the second heating assembly can cook the food in the cooking utensil. When the cover body is unfolded and is perpendicular to the base, the cooking utensil can be placed on the base, and food in the cooking utensil is heated by the first heating assembly; when the cover body is unfolded on one side of the base, the first heating assembly is arranged upwards, the cooking utensil can be placed above the first heating assembly, the effect that one machine has multiple purposes can be achieved, and the cooking equipment can better meet the cooking requirement of a user.

The present invention discloses a water outlet device and a shower head, the water outlet device comprises a base and a rotating part, the base is provided with a first oblique water channel and a second oblique water channel; the rotating part is rotatably connected to the base; the first oblique water channel points to a first position on the axis of the rotating part and guides the water flow to push the rotating part to rotate along a first direction; the second oblique water channel points to a second position on the axis of the rotating part and guides the water flow to apply rotational resistance to the rotating part. The shower head comprises the above-mentioned water outlet device, which can reduce the rotation speed of the rotating part in the water outlet device under the impact of the water flow, so that the formed water spray pattern is more soothing, the overall structure is simple, and the problems of complex structure, difficult assembly, high cost and short service life existing in the deceleration shower head in the prior art are solved.

The invention discloses a semiconductor mica composite material and a preparation method thereof, and belongs to the technical field of composite materials, the semiconductor mica composite material is prepared from the following raw materials by weight: 20-40% of mica, 10-20% of an adhesive, 10-20% of a reinforcing agent and 10-20% of an auxiliary agent. The polypropylene composite material is prepared from 30-50% of polypropylene, 1-3% of chlorinated polyethylene, 1-3% of epoxy resin, 2-4% of epoxidized soybean oil, 4-8% of carbon black, 1-3% of paraffin and 2-4% of liquid The composite material is prepared from the following components in percentage by weight: 10%-20% of polypropylene, 5%-10% of silane coupling agent (KH570), 1%-3% of titanate coupling agent, 4%-8% of compatilizer (107), 2%-4% of curing agent urotropine, 2%-4% of flame retardant (101) and 1%-3% of antioxidant (1010). The mica composite material disclosed by the invention is light in weight, high in strength, high in hardness and good in electrical performance, so that the mica composite material becomes an ideal structural and functional material, the preparation process of the mica composite material is simple, the cost benefit is high, and powerful support is provided for popularization and application of the mica composite material in the market.

The utility model relates to the field of automobile parts, concretely relates to an electronic mechanical double unlocking structure, including handle seat, handle that rotates set on handle seat, micro -switch and be used for making handle reset's first gear spring, be equipped with rotation part on handle, and the probe of micro -switch is contacted with rotation part, still including swing claw that rotates set on handle seat, the second gear spring of swing claw rotation resistance, swing claw's end is the opposite end, and the opposite end is opposite with the tail end of handle, when handle rotates in the rotation range of electronic unlocking, the tail end of handle and the opposite end are in the separate state, when handle rotates in the rotation range of mechanical unlocking, the tail end of handle and the opposite end are in the opposite state, through the scheme of the application, realize first gear spring and second gear spring different shaft setting, facilitate electronic mechanical double unlocking structure's assembly, reduce assembly difficulty.

The utility model belongs to the technical field of rotary sprayers, and particularly relates to a four-stage speed reduction rotary sprayer which comprises a rotary nozzle assembly, a shell, a rotary driving assembly and a water inlet connector, the rotary driving assembly is located in the shell, the rotary nozzle assembly is connected with the output end of the rotary driving assembly and rotationally arranged at the upper end of the shell, and the water inlet connector is connected with the rotary nozzle assembly. The water inlet connector is connected with the lower end of the shell, a water inlet channel is reserved between the shell and the rotary driving assembly, a water inlet gap is reserved between the rotary driving assembly and the rotary nozzle assembly, and the water inlet gap is communicated with the water inlet channel. Liquid enters from the water inlet connector and then is sprayed out from the rotary nozzle assembly through the water inlet channel and the water inlet gap in sequence. The four-stage speed reduction rotary nozzle is reasonable in structure, and the instantaneous water pressure of a water pipe entering the rotary nozzle can be properly reduced.

The utility model provides a wooden packing box assembly support platform, include: the assembly platform is provided with packing box body on the assembly platform, be provided with the conveyer belt on the assembly platform still include: unloading assembly, unloading assembly sets up on the assembly platform, unloading assembly includes the connecting rod setting on the assembly platform, is provided with locking part on the connecting rod, is provided with the sliding block on the connecting rod, is provided with the support plate on the sliding block, is provided with the unloading board on the support plate, the guide component is provided on the unloading board. The utility model discloses through rotating handle, can drive connecting rod rotation in this way, can make the card block from the card slot and separate, make the weight of packing box body, can drive unloading board around the main shaft and rotate, the elasticity of spring can delay the rotation speed of unloading board at this moment, in this way can make unloading board can stably convey packing box body to the conveyer belt, can greatly reduce the carrying difficulty of staff.

The application discloses a drilling device with waste gas collecting function for coal mine exploration and relates to the technical field of coal mine drilling. The drilling device comprises a sliding frame, the sliding frame is rotationally connected with a rotating sleeve, the lower portion of the rotating sleeve is slidably connected with a first spline rod, the lower end of the first spline rod is fixedly connected with a drill cylinder, the lower portion of the first spline rod is fixedly connected with a first fixed plate, the first spline rod is provided with an elastic member, the two ends of the elastic member are fixedly connected with the rotating sleeve and the first fixed plate respectively, the sliding frame is fixedly connected with a support frame, the support frame is fixedly connected with a first driving motor, and the output shaft of the first driving motor is fixedly connected with a gear. The first elastic member is used for monitoring the extrusion force between the drill cylinder and the bottom layer, so that the transmission ratio between the third extrusion plate and the fourth extrusion plate and the second extrusion plate and the first extrusion plate is changed, the moving speed of the sliding frame is reduced, the drill cylinder is prevented from moving downwards at a speed that is too fast, the extrusion force between the drill cylinder and the bottom layer is prevented from increasing continuously, and the drill cylinder is prevented from being stuck in the bottom layer.

The utility model relates to the technical field of high-altitude operation safety protection, and discloses a falling protector. By arranging the centrifugal linkage assembly, when the rotating speed of the locking rotating wheel reaches or exceeds a preset centrifugal threshold value, the centrifugal linkage assembly can be started immediately, so that the buffering rotating wheel and the locking rotating wheel rotate synchronously, and the damping plate is fixedly installed between the outer wall of the buffering rotating wheel and the inner wall of the buffering groove; the damping plate acts on a damping medium located between the outer wall of the buffering rotating wheel and the inner wall of the buffering groove, a rotating damping structure is formed, mechanical energy is consumed, and therefore the rotating speed of the locking rotating wheel is reduced.

The utility model discloses crushing equipment for concentrated feed production, and belongs to the technical field of concentrated feed production. The device comprises a shell, a feeding port is formed in the front side of the shell, a plugging cover is arranged on the feeding port in a matched mode, a smashing cylinder is transversely and rotationally arranged on the inner side of the shell, an opening is formed in one end of the smashing cylinder and is aligned with the feeding port, the other end of the smashing cylinder is plugged, and screening holes are formed in the side face of the smashing cylinder. A smashing assembly used for smashing materials is rotationally arranged in the smashing cylinder, a driving mechanism used for driving the smashing assembly and the smashing cylinder to rotate oppositely is arranged on the shell, and a material receiving cavity is formed in the bottom in the shell. When the crusher is used, the motor drives the blade and the crushing cylinder to rotate reversely, so that the effect of relative rotation of the crushing cylinder and the transmission shaft and relative movement of the blade and the crushing cylinder are realized, the relative speed of the blade and the guide plate and the cutting efficiency are improved, and the possibility of contact between large materials and the blade is improved.

This invention discloses a paper dispensing deceleration mechanism and a tissue dispenser, comprising: a paper tube, a pressure roller, and a paper-pressing elastic component. The outer peripheral wall of the paper tube has at least one mounting groove extending axially along the paper tube. At least one pressure roller is provided, rotatably mounted in the mounting groove around its own axis, with both ends of the pressure roller located at opposite ends of the extending direction of the mounting groove. The paper-pressing elastic component acts between the pressure roller and the paper tube, providing a spring force to the pressure roller to move outwards from the mounting groove, causing a portion of the pressure roller to protrude from the outer peripheral side of the paper tube. When the external force for paper dispensing is removed, the rotational speed of the paper roll is effectively reduced, achieving a deceleration effect. Simultaneously, during paper dispensing, the pressure roller can rotate with the paper roll, effectively decelerating the paper roll while maintaining smooth rotation.