59results about How to "Reduce maintenance and replacement frequency" patented technology

The invention discloses a mechanical equipment base with the damping function. The mechanical equipment base comprises a base body, wherein buffer devices are fixedly connected with both sides of the bottom of the inner cavity of the base body; a supporting plate is fixedly connected with the tops of the buffer devices; both sides of the supporting plate are slidably connected with those of the inner cavity of the base body; sliding blocks are fixedly connected with both sides of the bottom of the supporting plate; sliding grooves are formed in the sliding blocks; sliding block bodies matched with the sliding grooves are slidably connected onto the sliding grooves; two connecting rods are rotationally connected onto the sliding block bodies; the middles of the connecting rods are rotationally connected with each other; fixing blocks are rotationally connected with the other ends of the connecting rods; and the bottoms of the fixing blocks are fixedly connected with the bottom of the inner cavity of the base body. By adoption of the mechanical equipment base, the problem that the buffer effect of a conventional mechanical equipment base is not good can be solved, the service life of mechanical equipment can be prolonged, the manufacturing equipment overhaul and replacement frequency can be reduced, and the using effect of a user can be satisfied.

The invention discloses a communication base station lightning arrester capable of being automatically started according to meteorological conditions. The lightning arrester comprises a lightning protection box, wherein a storage cavity is formed in the lightning protection box, a supporting plate capable of sliding up and down is arranged in the storage cavity, a lightning rod is fixedly arrangedin an upper end surface of the supporting plate, a wind power detection box is fixedly arranged on the left side of an upper end surface of the lightning-protection box, a bevel gear cavity is formedin the wind power detection box, a wind power shaft is rotationally arranged in a left wall, a left end of the wind power shaft extends to the left side of the wind power detection box, a wind powerblade is arranged on the excircle surface, and the wind power blades can rotate due to wind power. The lightning arrester is mounted at the top of a communication base station, the lightning rod can automatically extend out to protect electronic equipment of the communication base station according to the wind power change and rainfall condition of the environment where the communication base station is located, equipment damage is avoided, meanwhile, the lightning rod is automatically recycled in a non-working state, the lightning rod is prevented from being exposed and damaged for a long time, and the overhauling and replacing frequency is reduced.

The invention discloses a waterproof and vibration-resistant communication device, which relates to the technical field of communication. Including the protection frame, the top of the protection frame runs through a protection box, the inside of the protection box is provided with communication equipment, the outer surface of the communication equipment is provided with a sponge pad, the outer surface of the sponge pad is provided with a waterproof and breathable membrane, and the outer surface of the waterproof and breathable membrane is fixedly connected with the inner wall of the protection box , the bottom of the protection box is provided with a fixed block, both sides of the fixed block are provided with a telescopic sleeve, one end of the telescopic sleeve is provided with a slider, the top of the slider is provided with a slide rail, the top of the slide rail is fixedly connected to the bottom of the protection box, and the slide rail is connected to the bottom of the protection box. The sliders are matched, a connecting rod is arranged on the front side of the slider, a rotating block is arranged at the bottom end of the connecting rod, and the bottom of the rotating block is fixedly connected with the bottom of the inner cavity of the protection frame. The waterproof and anti-vibration communication equipment has good anti-vibration performance, and can be efficiently waterproofed, prolongs the service life of the communication equipment, reduces the frequency of maintenance and replacement of the communication equipment, and avoids unnecessary economic losses.

The invention discloses a drying device for medicinal materials and relates to the technical field of mechanical equipment. The drying device comprises a base; a box body is fixedly connected to the top of the base; the left side of the bottom of an inner cavity of the box body is fixedly connected with a transmission device; a supporting rod penetrates through the top of the transmission device; the top end of the supporting rod is rotatably connected with a vibrating plate, and the right side of the bottom of the vibrating plate is rotatably connected with a connecting rod; the bottom end of the connecting rod is rotatably connected with a limiting rod; the right side of the box body is fixedly connected with a limiting plate; the bottom end of the limiting rod penetrates through the limiting plate and extends to the bottom of the limiting plate; the top of the vibrating plate is provided with a heating plate, and the right side of an inner cavity of an outer shell is fixedly connected with a motor; and an output shaft of the motor is fixedly connected with a rotating shaft through a coupler. According to the drying device for the medicinal materials, the problem of uneven drying of a traditional medicinal material drying device is solved, the drying efficiency of the drying device is improved, the work efficiency of workers is improved, and the use effect of users is met.

The invention discloses a corner cutting device for manufacturing a computer circuit board, and relates to the technical field of computers. The corner cutting device comprises a base. Transmission devices are fixedly connected to the two sides of the top of the base, a supporting plate is fixedly connected to the tops of the transmission devices, one opposite sides of the two transmission devices are fixedly connected, a first motor is fixedly connected between the two transmission devices through a motor box, an output shaft of the first motor sequentially penetrates through the top of the motor box and the supporting plate from bottom to top and is fixedly connected with a cutting knife, supporting rods penetrate through the tops of the transmission devices, the top ends of the supporting rods penetrate through the supporting plate and are fixedly connected with containing frames, a protection cover is movably connected to the top of the supporting plate, and the transmission devices comprise shells. By means of the corner cutting device for manufacturing the computer circuit board, the problem that a traditional corner cutting device needs to be manually pushed is solved, the working efficiency of workers is improved, utilization of labor resources is saved, and the using effect of users is achieved.

The invention discloses vehicle-mounted communication equipment. The vehicle-mounted communication equipment comprises a shell, wherein a fixed seat is arranged at the bottom of the shell; first sliding frames are arranged on both sides of the bottom of the fixed seat; first slide blocks are arranged inside the first sliding frames; the first slide blocks are matched with the first sliding frames;a rotating block is arranged in the middle of the bottom of the fixed seat; second sliding frames are arranged at the bottoms of the first sliding frames; second slide blocks are arranged inside thesecond sliding frames; and the second slide blocks are matched with the second sliding frames. The invention relates to the technical field of communication. The vehicle-mounted communication equipment has efficient buffering performance; the problem of damage to the communication equipment caused by vibration is solved; the service life of the communication equipment is prolonged; the maintenanceand replacement frequency of the communication equipment is lowered; and the working efficiency of the communication equipment is increased. Meanwhile, the communication equipment is convenient to mount and detach, can be detached and mounted rapidly without carrying any specific tool, and meets the requirement of a user on a usage effect.

The invention discloses a crushing and drying device for raw materials in the chemical industry, which comprises a base. The top of the base is fixedly connected with a motor box and a crushing box in turn from left to right. The left side of the inner cavity bottom of the motor box is fixedly connected with a first motor. The surface of the output shaft of the first motor is covered with a first pulley, and the surface of the first pulley is connected with a second pulley through a belt transmission. The shaft center on the right side of the second pulley is fixedly connected with a rotating shaft. The right side runs through the right side of the motor box and the left side of the crushing box in turn and is rotationally connected with the right side of the inner chamber of the crushing box. The surface of the rotating shaft located inside the crushing box is covered with a crushing shell, which relates to the field of industrial technology. The crushing and drying device for raw materials in the chemical industry solves the problem of uneven drying in the traditional crushing and drying device for raw materials in the chemical industry, improves the drying effect, improves the work efficiency of the staff, and satisfies the user's use effect .

The invention discloses a drilling device for building boards, which comprises a base, the top of the base is fixedly connected with a bracket, one side of the bracket is fixedly connected with a transmission device, the bottom of the transmission device is penetrated by a support rod, and the bottom end of the support rod is fixedly connected There is an electric box, the top of the inner cavity of the electric box is fixedly connected with the first motor, the output shaft of the first motor runs through the bottom of the electric box and is fixedly connected with a drill bit, the transmission device includes a casing, and the right side of the inner cavity of the casing is fixedly connected with a placement plate A motor is fixedly connected to the top of the placing plate, and an output shaft of the motor is fixedly connected to a rotating shaft through a coupling. The present invention relates to the technical field of mechanical equipment. The drilling device for building boards solves the problem that the traditional drilling device for building boards needs to manually pull the handle to drill holes when drilling multiple holes on a piece of material, saves manpower and material resources, improves the work efficiency of workers, and satisfies The user's use effect.

The invention discloses a computer shell with dustproof and heat dissipation functions. The computer shell includes a shell body; a separation plate is fixedly connected between the two sides, opposite to each other, of an inner cavity of the shell body, the two sides of the top of the separation plate are connected with water tanks in a sliding mode, the tops of the water tanks are sequentially and fixedly connected with micro water pumps and air blowers from right to left, suction openings of the air blowers are communicated with suction hoods, the two sides of the bottom of each suction hood are fixedly connected with the tops of the water tanks through fixing rods, air outlets of the air blowers pass through the tops of the water tanks and extend in the water tanks, water inlets of themicro water pump are communicated with water pumping pipes, and the bottoms of the water pumping pipes penetrate through the tops of the water tanks and extends to the bottoms of the water tanks. Theinvention relates to the technical field of computers. According to the computer shell with the dustproof and heat dissipation functions, dust prevention is achieved through a mist-spray dust removalmethod, the problem that a traditional computer shell is bad in dustproof effect is solved, the service life of a computer is prolonged, and the repair and replacement frequency of the computer is reduced.

The invention discloses waterproof and heat dissipation type base station equipment based on 5G communication, which relates to the technical field of 5G network. The present invention includes a housing and a cover body, An exterior of the housing and the cover body are coated with heat preservation paints, An upper part and a low part of the housing are respectively fixed with a first water tankand a second water tank, the first water tank and the second water tank are made of PVC material, an opposite inner wall of the shell is fixed with a heat absorbing tank, the heat absorbing tank is made of PVC material, and the water inlet and the water outlet of the first water tank are respectively communicated with the water inlet and the water outlet of the two heat absorbing tanks through pipes. The invention dissipates heat by using a refrigerator, the second water tank, the first water pump, the heat absorbing tank, the first water tank, the heat absorbing ice scale, the copper plate and the heat conducting fin together, and dissipates heat by using the exhaust fan, the extraction fan, the second water pump, the heat dissipating box and the serpentine elbow pipe together, thus solving the problem of poor heat dissipation effect of the existing base station equipment.

The invention discloses a hard rock cutterhead of a multi-angle rock breaking cantilever heading machine. The technical problem that an existing rolling cutter of a cantilever heading machine has abnormal abrasion and cutter disintegrating is solved. The hard rock cutterhead includes a cutting arm and a cutterhead front panel connected to the cutting arm, the front end of the cutterhead front panel is provided with a front hob and a side hob, an inflection point hob is arranged between the included angles of the front hob and the side hob, the distance between the front-most blade edge of theinflection point hob and a hinge point of the cutting arm is denoted as the swing radius R2, the distance between the front end cutting edge of the front hob and the hinge point of the cutting arm isdenoted as the swing radius R1, and the R2 is greater than R1. The hard rock cutterhead not only can avoid the occurrence of abnormal damage of the front hob, but also prevent abrasion of the end cover of the hob, improve the hard rock excavation efficiency of the cantilever heading machine, and realize the low cost, flexible maneuverability and high efficiency of the tunnel excavation equipment.

The invention discloses a pipe conveying device of natural gas hydrate. The pipe conveying device comprises a downhole casing, a hydrocyclone, an ESP tank-shaped container system and a pipeline route exchanging system; the hydrocyclone, the ESP tank-shaped container system and a pipeline route exchanging device are sequentially connected from bottom to top and are fixed into the downhole casing; the hydrocyclone comprises a whirlcone liquid inlet, a whirlcone overflowing opening, a whirlcone conical body and an underflow opening; the ESP tank-shaped container system is divided into an upper portion and a lower portion by a partition plate and comprises a container inlet, a liquid discharging pump motor, a gas-liquid separator and a liquid discharging pump; the pipeline route exchanging system comprises a fluid input pipe, a packer, the pipeline route exchanging device, a gas conveying pipe and a liquid conveying pipe. By means of the hydrocyclone, the ESP tank-shaped container system and the pipeline route exchanging device, solid-liquid-gas three-phase separation of the natural gas hydrate is achieved, natural gas is collected and conveyed to the sea surface, meanwhile the solid phase and the liquid phase are discharged, and exploitation efficiency is improved.

The invention discloses a cloth cutting machine for clothes processing. The cloth cutting machine comprises a processing platform, wherein a stainless steel plate is arranged at the top of the processing platform and a cloth cutting frame is arranged at one side of the top of the stainless steel plate; a material guide device is arranged at one side of the cloth cutting frame; a first electric retractable rod penetrates through the top of the cloth cutting frame; a supporting plate is arranged at the bottom end of the first electric retractable rod; a cutter is arranged at the bottom of the supporting plate; a fixing device is arranged at one side of the cutter; a clamping device is arranged at the other side of the cutter; guide rods are arranged at two sides of the supporting plate; thecloth cutting machine relates to the technical field of the clothes processing. The cloth cutting machine for the clothes processing can be used for rapidly detaching the cutter; heating wires are arranged at two sides of a cutter groove so that unnecessary economic wastes are avoided and the manpower and material resources are saved; the height and the width of a friction wheel can be adjusted sothat the cloth cutting machine is suitable for cloth with any specification; a condition that the cloth has folds in a cloth cutting process is prevented; the cloth cutting effect of the cloth cutting machine is ensured and the utilization standards of users can be met.

Disclosed is a power distribution box with high heat dissipation performance. The power distribution box comprises a base, a box body is fixedly connected at the top of the base, a partition board is fixedly connected between the two opposite sides of the cavity inside the box body, the right side of the bottom of the cavity in the box body is fixedly connected with a transmission device, the top of the transmission device is provided with a support rod in a penetrating manner, the top end of the support rod penetrates the partition board and extends to the top of the partition board, the left side of the bottom of the cavity in the box body is fixedly connected with a first blower, and an exhaust of the first blower runs through the left side of the box body and extends to the outside of the box body. The air outlet of the first blower is connected with a cooler, and the bottom of the cooler is fixedly connected with the bottom of the cavity of the box body. The present invention relates to the technical field of machinery. The power distribution box with high heat dissipation performance solves the problem of uneven distribution of heat in the conventional distribution box, reduces the frequency of inspection and replacement of the electrical components, prevents the electrical components from being damaged due to overheating, and indirectly improves the working electrical components' efficiency.

The invention discloses a local self-heating type high-voltage switch cabinet condensation removing method, and belongs to the field of switch cabinets. The local self-heating type high-voltage switchcabinet condensation removing method comprises the steps that a double-layer self-heating bag is arranged at the top of a switch cabinet, and when the temperature in winter is low, the double-layer self-heating bag absorbs water vapor in the switch cabinet, heat can be generated spontaneously; and on one hand, heat is concentrated inside through heat storage particles and transferred to the top of the switch cabinet through a heat conduction main rod, a heat conduction blocking block and heat conduction branch rods, so that the effect of adsorbing moisture and reducing the occurrence rate ofcondensation can be achieved, and on the other hand, relatively high heat at the top of the switch cabinet can be kept, and therefore, the condensation phenomenon of wet hot air in the switch cabinetcan be effectively removed. Compared with the prior art, the situation that condensed water drops directly and vertically fall off from the top of the switch cabinet can be effectively avoided, and then the probability that electrical elements in the switch cabinet are damaged due to the fact that electrical elements make contact with water is remarkably reduced.

The invention discloses a paint dipping device for computer fittings. The paint dipping device comprises a base, wherein fixed plates are fixedly connected at the two sides of the top of the base; the tops of the fixed plates are fixedly connected with a supporting plate; electric telescopic poles are fixedly connected at the two sides of the bottom of the supporting plate; the bottom ends of the electric telescopic poles are fixedly connected with a slide plate; the two sides of the bottom of the slide plate are fixedly connected with transmission devices; the bottoms of the transmission devices are fixedly connected with a placing plate; the bottom of the placing plate is fixedly connected with a placing screen board; the bottom of the base is fixedly connected with a paint tank; the paint tank is positioned below the placing screen board; each transmission device comprises a housing; and the right side of the inner cavity of the housing is fixedly connected with a motor. The invention relates to the technical field of computers. The paint dipping device for the computer fittings solves the problem that working efficiency for the conventional paint dipping device for the computer fittings is too low, improves paint dipping effect, meets using effects of a user, and improves working efficiency of a worker.

The invention discloses a braking device for a wind driven generator, and relates to the technical field of wind driven generators. The braking device comprises a cabin body, wherein a low-speed shaftpenetrates through one side of the cabin body; an impeller is arranged at one end of the low-speed shaft, and the impeller is arranged outside the cabin body; a transmission is arranged at the otherend of the low-speed shaft; a fixed block is arranged at the bottom of the transmission, and the bottom of the fixed block is fixedly connected with the bottom of an inner cavity of the cabin body; ahigh-speed shaft is arranged on one side of the transmission, and a generator is arranged at one end of the high-speed shaft; the low-speed shaft and the high-speed shaft are both sleeved with a brakedisc; and a motor is arranged on one side of the bottom of the inner cavity of the cabin body, and a rotating shaft is arranged at one end of an output shaft of the motor. According to the brake device for the wind power generator, brake pads can be conveniently arranged on placing discs, the brake pads are convenient to assemble and disassemble, the braking effect of the wind driven generator isimproved, the service lives of the high-speed shaft and the low-speed shaft are prolonged, the maintenance and replacement frequency of the high-speed shaft and the low-speed shaft is reduced, and the working efficiency of the wind driven generator is indirectly improved.

The invention discloses a road environment-friendly car with the function of road dust removal, which comprises a carriage, a garbage box is fixedly connected to the left side of the top of the carriage, a water tank is movably connected to the right side of the dustbin, the bottom of the water tank is movably connected to the top of the carriage, and the water tank The top of the water pump is fixedly connected with a water pump, the water inlet of the water pump is connected with a suction pipe, the bottom end of the water suction pipe runs through the top of the water tank and extends to the bottom of the water tank, the water outlet of the water pump is connected with a water delivery pipe, and the bottom end of the water delivery pipe runs through the top of the water tank And extending to the inside of the water tank, one end of the water delivery pipe located inside the water tank is connected with a spray head, and relates to the technical field of environmental protection. The road environmental protection vehicle with road dust removal function solves the problem of traditional environmental protection vehicles requiring manual dust removal and poor dust removal efficiency. It can evenly collect dust, improve the work efficiency of dust collection, and improve the work efficiency of environmental protection workers. Moreover, the health of environmental protection personnel is guaranteed, and the use effect of users is satisfied.

The invention provides a water injection pipeline cyclone separation desanding device, and belongs to the technical field of sand-carrying cyclone solid-liquid separation in water injection pipelinesof oil fields. The water injection pipeline cyclone separation desanding device solves the problem that an existing filtering device for a water injection pipeline is easy to block or break during working, and frequent downtime for cleaning or maintenance is needed, thereby wasting manpower and material resources, and solves the problem that a sealing part is worn to fail and leak due to the factsthat the pressure of a water injection well is high, the disassembly and assembly risks are large, and the disassembly and assembly are frequent. A liquid inlet pipe is communicated and fixedly connected with the outer side of the lower portion of a shell, a liquid outlet pipe is communicated and fixedly connected with the outer side of the upper portion of the shell, a spiral assembly is vertically and fixedly arranged in the shell, the liquid inlet pipe is communicated with the liquid outlet pipe through the spiral assembly, and a blow-down valve is vertically arranged at the bottom end ofthe shell and is connected with the shell through a connecting pipe.

The invention discloses a computer case with high heat dissipation performance. The computer case comprises a case body; a separation plate is fixedly connected between sides opposite to two adjacent sides of the inner cavity of the case body; silent fans are fixedly connected with two sides of the bottom of the inner cavity of the case body; the air suction openings of the silent fans penetrate the sides of the case body and filtering plates are arranged at the penetration positions; the air outlets of the silent fans are communicated with a cooling box through air delivery pipes; the bottom of the cooling box is fixedly connected with the bottom of the inner chamber of the case body; cooling liquid is arranged in the cooling box; the ends of the air delivery pipes in the cooling box are communicated with cooling pipes; and the top ends of the cooling pipes penetrate the top of the cooling box and penetrate a division box. The computer case relates to the technical field of a computer. According to the computer case with the high heat dissipation performance, the problem that the heat dissipation effect of the computer case is poor is solved, the service life of the internal elements of the computer is prolonged, the overhaul and replacement frequency for the internal elements of the computer is reduced, and the use effect of a user is satisfied.

The invention discloses a heat dissipation shell for an office computer. The heat dissipation shell includes a housing, a partition plate is fixedly connected between the opposite sides of the two sides of the inner cavity of the housing, the air holes are formed in the partition plate; a water tank is fixedly connected to the right side of the bottom of the inner cavity of the housing; a micro water pump is fixedly connected to the top of the water tank; a water inlet of the micro water pump is communicated with a water pumping pipe; the bottom end of the water pumping pipe penetrates throughthe top of the water tank and extends into the water tank, the water outlet end of the micro water pump communicates with a water conveying pipe, a cooling box is fixedly connected to the position, located on the left side of the water tank, of the bottom of an inner cavity of the housing, and the left end of the water conveying pipe penetrates through one side of the cooling box and extends intothe cooling box. The heat dissipation shell relates to the office equipment technology field, and according to the heat dissipation shell for the office computer, the problem that a traditional shellfor the office computer is poor in heat dissipation effect is solved, the service life of internal elements of the computer is prolonged, the maintenance and replacement frequency of the internal elements of the computer is reduced, and the use effect of a user is met.

The invention belongs to the technical field of cardboard paper, and provides a production process of high-strength environment-friendly liner cardboard paper, which comprises the following steps: taking domestic bamboo fiber pulp, imported wet paper pulp, imported roll paper and national waste as raw materials according to a specific ratio; the wet paper pulp and the bamboo fiber pulp are mixed and pulped through a medium-concentration pulper, a sand remover, a pre-grinding pool, a disc mill and a post-grinding pool in sequence, and first mixed pulp is obtained; in the OCC pulping line, the cut roll paper and national waste are treated through an OCC pulper, a high-concentration sand remover, a discharging tower, a two-section coarse screen and a classifying screen in sequence to obtain long fibers and short fibers, and then the long fibers and the short fibers are subjected to aftertreatment to obtain long fiber pulp and short fiber pulp; and mixing the long fiber pulp, the short fiber pulp and the first mixed pulp, and performing papermaking to obtain the liner cardboard paper. According to the production process, national waste is mainly used, quantitative roll paper, wet paper pulp and bamboo fiber pulp are matched, and the production process is optimized, so that the cost is reduced, the production efficiency is improved, the quality of finished paper can be improved, and the problem that external waste import is limited is solved.

The invention discloses a pipe drilling device used for mechanical equipment manufacturing and relates to the technical field of machines. The pipe drilling device comprises a base. One side of the top of the base is fixedly connected with a support. One side of the top of the support is fixedly connected with a transmission device. A supporting rod penetrates through the bottom of the transmission device. The bottom end of the supporting rod is fixedly connected with a first motor through a motor housing. An output shaft of the first motor penetrates through the bottom of the motor housing to be fixedly connected with a drill bit. The top of the base is fixedly connected with a workbench. The top of the workbench is fixedly connected with a clamping block. The transmission device comprises a shell. The right side of an inner cavity of the shell is fixedly connected with a second motor. By adoption of the pipe drilling device used for mechanical equipment manufacturing, the problem that when a traditional pipe drilling device used for mechanical equipment manufacturing is used for drilling a plurality of holes in a pipe, a handle needs to be pulled manually for drilling is solved, manpower and human resources are saved, the working efficiency of workers is improved, and using effect demands of users are met.

The invention discloses a plate stacking device for computer manufacturing, which comprises a base, the top of the base is fixedly connected with a stacking box, the right side of the top of the base is fixedly connected with an electric box, and the left side of the electric box is fixedly connected with the right side of the stacking box , the bottom of the inner cavity of the motor box is fixedly connected with a motor, and the output shaft of the motor is fixedly connected with a threaded rod through a coupling. The left side of the inner cavity of the box is rotatably connected, both sides of the surface of the threaded rod are provided with fixed blocks, and the top of the fixed block is rotatably connected with a first connecting rod. The invention relates to the field of computer technology. The plate stacking device for computer manufacturing solves the problem that the internal plates are difficult to take out in the traditional plate stacking device for computer manufacturing, saves the use of human resources, improves the work efficiency of staff, and satisfies the use effect of users.

The invention discloses a plate punching device for a computer case, which comprises a base, fixed columns are fixedly connected to both sides of the top of the base, the top of the fixed column is fixedly connected to a support plate, and the bottom of the support plate is fixedly connected to a transmission device. The bottom of the device is fixedly connected with a stamping tool, the top of the stamping tool is fixedly connected with a telescopic sleeve, and the top of the telescopic sleeve is fixedly connected with the bottom of the transmission device, the surface of the telescopic sleeve is surrounded by a first spring, and the top of the base is fixed A workbench is connected, and a limit block is fixedly connected to the top of the workbench. The invention relates to the technical field of computers. The plate punching device for computer cases solves the problem that the traditional plate punching device for computer cases does not have a continuous punching function. The working efficiency satisfies the user's use effect.

The invention discloses an efficient cement mixing device, and relates to the technical field of machinery. The efficient cement mixing device comprises a base. A tank is fixedly connected with the top of the base, a transmission gear is fixedly connected with the top of the tank, a support rod penetrates the bottom of the transmission gear, the bottom of the support rod penetrates the top of the tank and extends into the tank, a first motor is fixedly connected with the end, which is positioned inside the tank, of the support rod by a motor case, a stirring shaft is fixedly connected with an output shaft of the first motor by a coupling, the bottom of the stirring shaft penetrates the bottom of the motor case and extends to the bottom of the tank, a stirring blade is fixedly connected with the surface, which is positioned inside the tank, of the stirring shaft, and the transmission gear comprises a shell. The efficient cement mixing device has the advantages that the problem of poor mixing effects of the traditional cement mixing devices due to uneven mixing can be solved by the aid of the efficient cement mixing device, the work efficiency of workers can be improved, human and material resources can be saved, and requirements of users on service effects can be met.

The invention discloses a coal conveying belt blanking point adjusting device which comprises a coal blanking barrel, a baffle is arranged at the top of the coal blanking barrel, a baffle shaft is fixedly connected to the center line of the baffle, the baffle shaft penetrates through the side wall of the coal blanking barrel, the baffle shaft is rotationally connected with the side wall of the coal blanking barrel, it is guaranteed that the blanking point does not deviate or incline in the belt running process, and coming coal can completely fall into a three-way charging barrel; the coal is smoothly taken away, the coal blockage phenomenon caused by the misalignment of the blanking point is avoided, the problem of coal blockage of the coal blanking barrel caused by the misalignment of the blanking point at the head of the coal conveying belt in a coal-fired power plant is solved, and the reliability of safe operation of equipment is improved.