74results about How to "Work synchronization" patented technology

The invention relates to a coarse and fine scanning rotating prism device, which comprises a prism and an inner and outer prism frame assembly, a worm and gear movement mechanism, a rotary motor, a yaw motor and a rotating half shaft assembly, an anti-backlash motor and an anti-backlash gear assembly, a rotary encoder assembly, a deflection encoder assembly, a rectangular frame and a base, wherein the rotary motor drives the prism and the inner and outer prism frame assembly through the worm and gear mechanism to realize full circumferential rotation, and the yaw motor is directly coupled with the rectangular frame to realize the yaw movement of the prism and the inner and outer prism frame assembly; and the whole device is arranged on the base. The prism is driven by the worm and gear mechanism to realize the full circumferential large-range rotation, and the coarse scanning requirements of dynamic beams are met; and a rotary movement mechanism and a yaw movement mechanism are nested to be combined, so that the integration of coarse and fine scanning functions is skillfully realized in a single set of devices, and the problems that the dispersal spatial structure is brought by a coarse and fine scanning separation design and the coarse and fine error term of the system is difficult to separate and traceably amend are avoided.

The invention discloses a synchronous control device of double winches, wherein a hook is connected with the double winches by a hook component, the synchronous control device comprises an angle signal acquisition part and a controller, wherein the angle signal acquisition part is used for acquiring the gesture angle of a frame of the hook component, the controller outputs a synchronous control signal to a drive mechanism / drive mechanisms of one or both of the double winches according to the gesture angle of the frame of the hook component, so as to control the gesture maintaining level of the frame of the hook component. According to the synchronous control device of the double winches, the frame of the hook component is kept at a horizontal gesture to improve the working stability of the whole machine. On the basis, the invention further provides a synchronous control method of the double winches and a crane applying the synchronous control device.

The invention relates to a double-arm parallel flat-top tower crane, which includes two parallel inverted triangle booms, two independent hoisting mechanisms, two independent luffing mechanisms, two independent luffing trolleys, and two hoisting The balance arm and slewing joint of the mechanism, and the hoisting wire ropes of the two sets of hoisting mechanisms enter the rope guide pulley and the hoisting pulley block of the luffing trolley through the respective guide rope pulleys on the tower top, and are fixed on the arm end to form a tower crane. Two sets of independent lifting systems, one end of the upper chord of the boom is connected to the lug plate on one side of the rotary joint, the lower chord is connected to the joint of the rotary joint, and the other side of the rotary joint is connected to the balance arm, and the two sets of luffing trolleys are respectively placed in two parallel On the boom, the luffing trolleys are dragged by two luffing mechanisms respectively, and the luffing trolley control system drives the two luffing trolleys to work independently, simultaneously or synchronously. The problem is too large, and the work efficiency is improved by setting two luffing trolleys.

The invention relates to cranes, in particular to a crane control system and control method. The control system comprises a hydraulic oil tank, a main pump assembly, a switch assembly, a rotary systemused for driving a rotary mechanism, a main lifting system used for driving a main lifting winch, an auxiliary lifting system used for driving an auxiliary lifting winch, an amplitude variation system used for driving an amplitude variation winch, a guy system used for driving a guy winch, and a control system used for sending action signals to all the systems; an input end of the main pump assembly is connected with the hydraulic oil tank, and an output end of the main pump assembly supplies oil for the amplitude variation system, the main lifting system, the auxiliary lifting system, the rotary system, the guy system, and the control system through the switch assembly; and the switch assembly is a hydraulic control proportion multi-way valve. According to the control system and the control method, the influence of the impact generated when the load swings and shakes on the crane control system is reduced, the pressure on the crane control system is balanced, and the safety and the stability of the crane control system are improved.

A spaceflight multichannel TDICCD camera synchronization method relates to the spaceflight camera synchronization field, and solves the existing problems that the imaging beat is not consistent, the subsequent image splicing is difficult and the imaging quality is poor due to the independent work of cameras. The method comprises the steps of using a high frequency clock to detect an RXD signal of an RS422 communication bus, when the RXD changes from 1 to 0, setting a synchronization signal Sysc_flag as 1, at the same time, ending a detection process and entering a synchronization signal maintenance state; when the synchronization signal Sysc_flag changes from 0 to 1, resetting a clock frequency division counter; when the synchronization signal Sysc_flag changes from 0 to 1, resetting a driving schedule counter, so that the driving schedules of imaging channels are totally consistent from the same reference. The spaceflight multichannel TDICCD camera synchronization method of the present invention does not need any hardware circuit, can realize the signal synchronization among the imaging channels by utilizing a conventional primary backup RS422 communication link, and is higher in reliability.

The invention relates to a three-terminal modulator for a lower-frequency modulating type radiometer receiver, which is based on a Dicke type modulating receiving system. The three-terminal modulator for the lower-frequency modulating type radiometer receiver is characterized in that the input end of the Dicke type modulating receiving system is provided with the three-terminal modulator, three ports are respectively connected with an antenna, a terminal load and an electronic receiving front end input port, wherein the electronic receiving front end input port is continuously switched between the antenna and the terminal load with a certain frequency. The three-terminal modulator adopts a fast response electromagnetic switch consisting of a reed pipe, a magnet coil and a tubular magneticshielding outer cover as a basic switching unit, a relay inductive load drive integrated circuit comprising a biasing resistor and a negative peak restrain diode as a basic breakover control unit anda CMOS (Complementary Metal Oxide Semiconductor) circuit which is controlled by modulating square signals output by a low-frequency system of the Dicke type modulating electric radiation receiver as a double-phase control voltage generating unit.

The invention relates to an LED display system, which comprises a control panel and a plurality of LED lamps. The LED display system is characterized in that the LED lamps are arranged in a plurality of LED lamp sets, each LED lamp set includes a plurality of LED lamps, one LED lamp in the Nth LED lamp set is in one-to-many radio-frequency communication with the LED lamps in the N+1st LED lamp set, and the control panel is in one-to-many radio-frequency communication with the LED lamps in the first LED lamp set, wherein the N is a natural number. The LED display system has the advantages of wide applicable range, stable performance, convenience in maintenance and the like.

The present invention provides an electronic signature-based traffic engineering electronic archive management system. The system comprises a server and a plurality of use terminals connected with the server; the system also comprises a system interface connected with the server, wherein the system interface is used for connecting an external system; the system further comprises a security authentication server connected with the server; the system interface is used for acquiring archived data of the for authenticating the digital signature of the user and verifying whether the signature of the archival data is legitimate or not, and sending the archival data to the external system; the security authentication server is used for authenticating whether the digital signature of a user is valid and verifying the signature of the archival data is valid, and sending the archival data to the server when the signature of the archival data is verified as valid; and the server is used for determining an engineering project type to which the archival data belong and storing the archival data according to a data model corresponding to the engineering project type. With the system of the invention adopted, the security of the data can be ensured. The server stores the archival data according to the data model corresponding to the engineering project type, and therefore, the external system or the use terminals can conveniently call the data, and management is more secure and efficient.

The invention discloses a glue spreader suitable for tyres of different types. The glue spreader comprises a machine body support, a first tyre, a second tyre, a tyre driving mechanism, a glue supply mechanism, a glue spraying mechanism, a glue spreading control system and a heating temperature control system, wherein the tyre driving mechanism comprises a driving shaft roller, a driven shaft roller, a first motor and a driven shaft roller supporting and moving mechanism; the driven shaft roller supporting and moving mechanism comprises two third linear guide rails, a second motor, an electromagnetic rail clamping device, a first lead screw and a lead screw sleeve; the glue supply mechanism comprises landing legs, a partition, a glue melting furnace, a third motor and a gear pump; the glue spraying mechanism comprises a spray gun, a Y-axis moving baseplate, an X-axis moving baseplate, a fourth motor and a fifth motor; the glue spreading control system comprises a controller and a touch-type LCD; and the heating temperature control system comprises glue melting furnace heating tubes, a spray gun heating tube, a gear pump heating tube, an electromagnetic induction heater and an electromagnetic induction heating wire. The glue spreader can adapt to glue spreading of the tyres of different specifications and improves the glue spreading efficiency.

The invention discloses a breathing machine. The breathing machine comprises an air breathing pipe, an expiring pipe and an expectoration pipe, wherein the air breathing pipe is provided with a turbofan, an air-breathing-and-expectoration two-position and four-way switching valve and a buffering tank; the expiring pipe is provided with an expiring valve, and the expiring valve is controlled in the mode that a two-position and three-way valve receives compressed gas from the buffering tank; the expectoration pipe is provided with a shutter valve, the air-breathing-and-expectoration two-position and four-way switching valve and the turbofan, wherein the expiring pipe and the expectoration pipe share the air-breathing-and-expectoration two-position and four-way switching valve and the turbofan. The breathing machine also comprises a central processing unit, and cooperatively controls all the parts of the breathing machine according to data detected by a sensor in the breathing machine. The breathing machine allows an expiring machine to be capable of serving as a module to be embedded into the breathing machine, and the breathing machine has the higher accuracy, responsiveness and safety. As the breathing machine is controlled by the same central processing unit, breathing work and expectoration work of the breathing machine reach true synchronization. The air breathing pipe and the expectoration pipe locally share a pneumatic circuit, and the structure of the breathing machine is simpler and more compact.

The invention discloses an ultrasonic washing tub and a washed woven belt production line. The ultrasonic washing tub comprises a washing tub body. A plurality of transmission rollers are arranged in the washing tub body in an upper row and a lower row. The lower row of transmission rollers are soaked in water, and the upper row of transmission rollers and the lower row of transmission rollers are arrayed in a staggered mode. Woven belts are sequentially wound around the transmission rollers from left to right, soaked in water, washed and then output. A least two ultrasonic generation devices are arranged on the inner wall of the washing tub. The top of each ultrasonic generation device is connected with a speed sensor. A heating device is arranged at the bottom of the washing tub body. The effect of washing away dirt and greasy dirt on surfaces of the woven belts is improved, and the woven belts are more thoroughly washed. In addition, according to the washed woven belt production line manufactured through the ultrasonic washing tubs, the multiple ultrasonic washing tubs work at the same time, and washing efficiency is improved.

The invention, which relates to the automotive electronic field, provides a method and apparatus for detecting an impacted signal of an automobile, wherein the method and apparatus aer used for anti-theft monitoring of the automobile. The method comprises: starting an impacted signal detection system; initializing an acceleration sensor and a single-chip microcomputer; collecting an acceleration signal value; carrying out noise reduction processing on the acceleration signal value; carrying out combined processing; storing a signal value after combined processing; calculating a changing amount of the combined signal value; comparing changing amount of the combined signal value with an impact signal threshold and carrying out determination; calculating a static signal value based on a determination result; comparing the static signal value with a still threshold; and starting a visual monitoring system according to a determination result. The method and apparatus have advantages of good working real-time performance, high system robustness, high detection method flexibility, effective filtering of sensor noises, low power consumption, and low price; and the apparatus based on the detection method has high competitiveness in market.

The invention relates to cranes, in particular to a crane hydraulic system and a working method. The hydraulic system comprises a hydraulic oil tank, a main pump assembly, a switch assembly, a rotarysystem used for driving a rotary mechanism, a main hoisting system used for driving a main hoisting winch, an auxiliary hoisting system used for driving an auxiliary hoisting winch, a luffing system used for driving a luffing winch and a cable stabilizing system used for driving a cable stabilizing winch, wherein the input end of the main pump assembly is connected with the hydraulic oil tank, andthe output end of the main pump assembly supplies oil to the luffing system, the main hoisting system, the auxiliary hoisting system, the rotary system and the cable stabilizing system through the switch assembly. According to the crane hydraulic system and the working method, the influence of impacting the crane hydraulic system when a load swings and shakes is reduced, the pressure of the cranehydraulic system is balanced, and the safety and stability of the crane hydraulic system are improved.

The invention belongs to the technical field of bridge landing equipment and discloses a self-locking-type multidirectional deviation-rectifying hydraulic device for safe bridge landing and a use method of the device. According to the main technical features, the self-locking-type multidirectional deviation-rectifying hydraulic device comprises a box body which is provided with a rectangular sliding frame and a self-locking-type jack; and a push-pull oil cylinder fixing seat where a push-pull oil cylinder is fixed is arranged at the rear end of the rectangular sliding frame, and the push-pulloil cylinder is connected with the jack. An upper sliding plate is arranged on the bottom face of the jack, and a lower sliding plate is arranged at the bottom of the box body. A left deviation-rectifying oil cylinder fixing seat where a left deviation-rectifying oil cylinder is fixed is arranged on the left side of the box body, and a right deviation-rectifying oil cylinder fixing seat where a right deviation-rectifying oil cylinder is fixed is arranged on the right side of the box body. The push-pull oil cylinder, the left deviation-rectifying oil cylinder and the right deviation-rectifyingoil cylinder are connected with a hydraulic control system. According to the self-locking-type multidirectional deviation-rectifying hydraulic device for safe bridge landing, through adjusting in sixdirections, accurate control over bridge landing is achieved, the structure is simple, the occupied operation space is small, and jacking, lowering, pushing and pullback are stable and reliable.

The invention provides a network cluster establishment system and a network cluster establishment method. The network cluster establishment system comprises a first cluster convening information broadcasting module, a first network address sending module, and a first cluster adding module, wherein the first cluster convening information broadcasting module is used for responding to an instruction of first network equipment and controlling the first network equipment to broadcast cluster convening information in a local area network where the first network equipment is; the first network address sending module is used for controlling the first network equipment to transmit the network address to second network equipment replying the cluster convening information when receiving information of other second network equipment in the local area network responding to the cluster convening information; and the first cluster adding module is used for receiving a network address sent by the first network equipment, and adding the network address to a first cluster established by the second network equipment, wherein all first network equipment and second network equipment in the first cluster can work synchronously. Through adoption of the network cluster establishment system and the network cluster establishment method, the network equipment in the same cluster can work synchronously.

The invention provides a safe and efficient work control system for an insect killing lamp, relates to the technical field of automatic control and also relates to the technical field of outdoor insect killing. The safe and efficient work control system provided by the invention can realize the dual protection on the short circuit generated in high-humidity environment (the humidity reaches 100 percent RH (relative humidity)) and in rain, the dual protection includes physical insulation protection and circuit control protection, the safe work of the insect killing lamp is ensured, the normal work of the insect killing lamp can be realized when many pests are very active in non-rainfall weather while the air humidity is greater then 95 percent RH, the work efficiency of the insect killing lamp is improved, in rainy days when pests are inactive, the insect killing lamp automatically stops working, the synchronism of the pest activity and the insect killing lamp is realized, the electricity energy waste caused under the condition that the insect killing lamp still works when the pests are inactive in rainy days can be prevented, or the number of the continuous work days of storage batteries in continuous rainy days can be reduced, so the work efficiency of the insect killing lamp can be further improved.

The invention discloses a winding spool used for cable winding. A winding reel is arranged between two support pillars, the inner wall of the winding reel is provided with an inner thread, the windingspool further comprises two round rods with the same axial length as the winding reel, the ends of the two round rods respectively pass through the two end surfaces of the winding reel and are located inside the winding reel, and the other ends are respectively connected with two drive motors arranged on the two support pillars; the winding spool further comprises a controller, the controller isrespectively connected with the two drive motors, when the controller controls one of the two round rods to rotate by controlling the drive motors, the other round rod keeps a fixed state, and the winding reel moves toward the fixed round rod; a rack is further provided with a tensioning wire supplying device and an adhesive tape wire supplying canister; therefore a mode of simple structures, reciprocatingly winding cooper coil and an insulated rubber tape is achieved, the winding efficiency is greatly improved, the manpower is saved, and the economic cost is reduced for enterprises.

The invention relates to an injection molding machine. The injection molding machine comprises an injection molding machine body. The injection molding machine body is provided with a semi-automatic safety gate device. A controller is installed on the injection molding machine body. The controller controls the semi-automatic safety gate device to move upward / downward. The semi-automatic safety gate device comprises a safety gate, lifting stand columns, a lifting plate, a lifting motor and a rack. The safety gate is fixedly connected to the lifting stand columns. The injection molding machine body is sleeved on the lifting stand columns. Lower ends of the lifting stand columns are fixedly connected to the lifting plate. The lifting motor is installed on the lifting plate. The lifting motor is provided with a gear. The rack is installed on the injection molding machine body. The gear engages with the rack. The injection molding machine utilizes the semi-automatic safety gate device thereby greatly improving use safety. Lifting of the semi-automatic safety gate device and operation of the injection molding machine are carried out synchronously so that operation time is reduced and work efficiency is improved.

The invention discloses a barrel flanger for an automobile pre-silencer. The barrel flanger comprises a left oil cylinder (2), a right oil cylinder (3), a left flanging mould (4) and a right flanging mould (5), wherein the left flanging mould (4) is connected with a piston rod of the left oil cylinder (2); the right flanging mould (5) is connected with a piston rod of the right oil cylinder (3); a left supporting seat (6) and a right supporting seat (7) are arranged between the left flanging mould (4) and the right flanging mould (5); the upper end of the left supporting seat (6) and the upper end of the right supporting seat (7) are respectively provided with an arc-shaped notch; the arc-shaped notch of the left supporting seat (6) corresponds to the arc-shaped notch of the right supporting seat (7) in position. By the adoption of the structure, the barrel flanger for the automobile pre-silencer is simple in overall structure and convenient to realize. When the barrel flanger for the automobile pre-silencer works, a silencing barrel of the pre-silencer is supported by the left supporting seat (6) and the right supporting seat (7), the left flanging mould (4) and the right flanging mould (5) can be aligned with the silencing barrel accurately, and therefore the effect that an end opening of the silencing barrel is smooth after the silencing barrel is flanged can be guaranteed.

The invention discloses a two-way egg liquid extractor and relates to the field of food processing. The structure of the two-way egg liquid extractor comprises a work 1, an egg liquid extraction device 2, an insertion device 3, an off-center runner 4, a two-way collection machine 5, an egg liquid output passage 6, an egg liquid collection passage 7 and an egg conveying belt 8, wherein the egg liquid extraction device comprises a two-gear spring 21 and an egg holder 22; the insertion device 3 comprises a spring 31, a fulcrum bar 32 and a briquette 33; the egg liquid collection passage 7 comprises a pinhead 71 and a telescopic conduit 72; the egg holder 22 is fixed at the bottom end of the egg liquid extraction device; the pinhead penetrates through the egg holder, is fixed at the bottom ofthe egg liquid extraction device 2, communicates with a hollow pipe inside the egg liquid extraction device, is exported from one side of the internal hollow pipe and communicates with the egg liquidcollection passage 7; the two-way collection machine 5 is synchronized with the off-center runner 4 through a synchronous signal; when the insertion device 3 is pressed to the bottom end, the two-waycollection machine is used for inhaling egg liquid through the egg liquid collection passage 7; and when the egg liquid extraction device 2 is jacked up, the two-way collection machine is used for discharging the egg liquid through the egg liquid output passage 6. The structure of the two-way egg liquid extractor has a small size and a simple structure and is suitable for large-area popularization.

The invention discloses an automatic cutting, drilling and stamping integrated device for automobile buckles, and relates to the technical field of machining. The automatic cutting, drilling and stamping integrated device comprises a workbench and a stamping mechanism arranged beside the workbench, the workbench is provided with a cutting mechanism, a drilling mechanism and a transferring mechanism, and the cutting mechanism comprises a cutting assembly and an adjusting assembly. The adjusting assembly is installed at the upper end of the cutting assembly. The drilling mechanism comprises a drilling table, a traction assembly, a moving assembly, a drilling assembly, a protection assembly and a blowing assembly, the traction assembly is arranged at the tail end of the drilling table, the moving assembly is installed in the middle of the drilling table, and the drilling assembly is installed on the moving assembly. The protection assembly and the blowing assembly are both arranged at the lower end of the drilling assembly and matched with each other, and the transferring mechanism is located between the stamping mechanism and the traction assembly. According to the automatic cutting, drilling and stamping integrated device for the automobile buckles, waste chips generated during drilling can be treated in a centralized mode, the influence on the workshop environment and equipment is avoided, the product quality is improved, and the production efficiency is improved.

The invention discloses a high-speed cross slot milling machine. The high-speed cross slot milling machine comprises a rack used for fixing and supporting the slot milling machine, a feeding structure used for straightening workpieces to be machined and feeding the workpieces, a clamping structure used for clamping and fixing the workpieces to be machined, a milling cutter structure used for cutting the surfaces of the workpieces located on the same horizontal line at the same time, and a discharging structure used for ejecting out the machined workpieces. The high-speed cross slot milling machine further comprises a linkage structure used for synchronizing the working process of the feeding structure, the working process of the discharging structure and the working process of the clamping structure, and a reset structure used for resetting the milling cutter structure and the discharging structure. According to the high-speed cross slot milling machine provided by the invention, the cross slot milling machine has the function of rapidly cutting cross-shaped slots in the workpieces through one-time feeding.

The invention relates to heavy screening vibration equipment, and belongs to the technical field of material conveying equipment. A vibration excitation motor used in the equipment is a double-output-shaft motor, output shafts at the two ends of the vibration excitation motor are connected with driving shafts installed on vibration exciters on the two sides of a base girder through universal jointcouplings correspondingly, an included angle not smaller than 15 degrees is formed between each driving shaft and the corresponding eccentric shaft, the driving shafts and the eccentric shafts are connected through a pair of bevel gears, the two eccentric shafts are connected through a pair of cylindrical gears, eccentric blocks installed on the two eccentric shafts are the same in structure andsize, and the generated exciting force is superposed in the direction perpendicular to a plane formed by the axes of the two eccentric shafts and counteracted in the parallel direction; and excitationforce generated by each vibration exciter coincides with the center of the corresponding side plate, main rotating components such as gears and bearings are sealed in the vibration exciters, and thethin oil lubrication performance of the vibration exciters is guaranteed. The crack resistance of the side plate is improved, the service life of the vibration exciter is prolonged, and the heavy screening vibration equipment has very remarkable advantages.

The invention discloses a crystal-violet salmonella culture medium and a preparation process thereof. The culture medium is prepared from raw materials in parts by weight as follows: 5-15 parts of peptone, 5-15 parts of lactose, 0.1-1 part of L-cysteine, 1-9 parts of beef powder, 1-9 parts of sodium chloride, 1-9 parts of sodium citrate, 5-15 parts of cholate, 1-9 parts of sodium thiosulfate, 0.001-0.01 parts of crystal violet, 0.5-1.5 parts of ammonium ferric citrate, 0.050-0.070 parts of bromothymol blue and 11-18 parts of agar. The operation is simple and convenient, medium types required in detection can be reduced, detection time is shortened to 2 d from 4-7 d in the conventional method, and the detection sensitivity is high.

The invention discloses a multi-source data time delay control module in radar testing, which comprises a cloud data platform, the cloud data platform is in signal connection with an acquisition upper computer, and the acquisition upper computer is in signal connection with a multi-source data time delay control module and a synchronous acquisition module. The multi-source data time delay control module and synchronous acquisition module comprises a video module, a radar module, a GPS module and a vehicle body module, and the input end of the multi-source data time delay control module and synchronous acquisition module is in signal connection with the video module, the radar module, the GPS module and the vehicle body module. The method has the beneficial effects that radar data, video data, vehicle body data and GPS data can provide a clock through a CAN line and an Ethernet interface, and each module transmits a correct clock signal to cooperate with a master clock and a slave clock by deploying and collecting data processing of an upper computer; different information modules are respectively connected with the switch in different forms, and a single subsystem or a plurality of subsystems are established for clock calibration, so that working synchronization of a plurality of acquisition devices is realized.

The invention belongs to the field of mechanical and electrical equipment and particularly relates to a double-shaft centrifugal fan. The double-shaft centrifugal fan comprises a shell; a driving shaft is arranged in the shell; a driven shaft is arranged above the driving shaft and covered with a driven impeller; second rear sealing rings, second rear bearings and second gear hubs are arranged on one side of the driven impeller; the second rear sealing rings are located between the driven impeller and the second rear bearings; the second rear bearings are located between the second rear sealing rings and the second gear hubs; the second gear hubs are sleeved with second gear rings; second front sealing rings and second front bearings are arranged on the other side of a driving impeller; the second front sealing rings are located between the driving impeller and the second front bearings; the driving shaft is provided with a first flat key; the driven shaft is provided with a second flat key; the shell comprises a front end cover, a connecting cover and a rear end cover; the front end cover and the connecting cover are connected through bolts; and the connecting cover and the rear end cover are in threaded connection.

The invention discloses a bench grinder for manufacturing a polishing tool. The bench grinder comprises a housing. Two sides of the interior of the housing are provided with motors, and one side of the motor is provided with a transmission shaft. The transmission shaft is sheathed with a driving gear, and a bevel gear is meshed and installed above the driving gear. A vertical transmission rod is fixedly welded above the bevel gear, and an exhaust fan is fixedly welded above the vertical transmission rod. The vertical transmission rod is sheathed with a bearing, and one side of the bearing is fixedly welded with a support rod. One end of the support rod is fixedly welded with the inner wall in the housing, and two sides below the housing are provided with lower air inlets. An air drainage plate is fixedly installed above the lower air inlets. An air outlet is correspondingly installed above the exhaust fan. One end of the transmission shaft is connected with a coupling. The bench grinder is capable of performing heat-radiating treatment in a heating source, greatly increasing a one-time working time length of the grinder, and enabling working efficiency to be improved.

The invention discloses a lubricating spraying device for a die-casting die. The device comprises a mixing box for blending a lubricating agent, and further comprises a raw material tower for storing lubricating agent blending raw materials, wherein a spray head is fixedly connected to the mixing box and used for spraying the lubricating agent to the die-casting die, a water raw material box, a glycerol raw material box, a water glass raw material box and a graphite raw material box are sequentially arranged in the raw material tower from bottom to top, each of the water raw material box, the glycerol raw material box, the water glass raw material box and the graphite raw material box correspondingly communicates with a mixing pipeline through a transmission pipeline, switch units capable of adjusting a raw material proportion are arranged on the transmission pipelines, and the other end of the mixing pipeline communicates with the mixing box. According to the device, the lubricating agent can be quickly blended, the proportion of raw materials can be freely adjusted, and the working efficiency is higher.