32results about How to "Cool down in real time" patented technology

The invention discloses a rock tensile strength test apparatus capable of applying confining pressure, which can truly restore an environment in which rock is disposed. The rock tensile strength test apparatus comprises a base, wherein the base is connected with a top plate by virtue of a connecting rod; and the base is fixedly provided with a test assembly, the top plate is fixedly provided with a loading oil cylinder, and a loading rod of the loading oil cylinder stretches into the test assembly. By adopting the rock tensile strength test apparatus, the confining pressure, different temperature environments and rock burst can be applied to a test sample, an underground environmental condition of the rock can be truly simulated, so that an underground stress condition of the rock and the variation of tensile strength can be more precisely researched, and instructions and references can be provided for the subsequent design, construction, teaching, research and the like. By adopting the rock tensile strength test apparatus, the test sample can be rapidly centered, and a breaking time and pressure at the breaking time of the test sample can be discovered in time by virtue of a displacement of the loading rod. By virtue of a cooling assembly, heat of the loading rod and a lower supporting rod can be prevented from damaging the test apparatus.

The invention discloses a hydraulic cooling system. The hydraulic cooling system comprises a pump (10), a cooling motor (20), a cooling fan (30), an oil inlet oil way (22) and an oil return oil way (24). The cooling fan (30) is driven by the cooling motor (20) to run, the oil inlet oil way (22) is connected between the cooling motor (20) and the oil outlet of the pump (10), and the oil return oil way (24) is connected between the cooling motor (20) and an oil tank (T0). The hydraulic cooling system is characterized in that a hydraulic control reversing valve (40) with the adjustable aperture of a valve core is arranged on the oil inlet oil way (22); the hydraulic control reversing valve (40) comprises a hydraulic control end A and a hydraulic control end B, an oil inlet P, a working oil port a and a working oil port b. The hydraulic control end A and the hydraulic control end B are located at the two opposite ends of the hydraulic control reversing valve, the oil inlet P is communicated with the oil inlet of the pump (10), the working oil port a is communicated with the cooling motor (20), and the working oil port b is connected with other working oil ways (26). The hydraulic cooling system further comprises a temperature control pressure device, wherein the temperature control pressure device is connected with the hydraulic control end B and enables the pressure of the hydraulic control end B to change along with the temperature of hydraulic oil. The hydraulic cooling system has both the precooling function and the cooling as required function and is good in energy saving and economic returns. Through the hydraulic cooling system, the power of the hydraulic system can be effectively utilized to cool the hydraulic oil.

The invention provides a frequency converter cooling device. The frequency converter cooling device comprises a refrigerant cooling system and a freeze water cooling system. A compressor, a cooling assembly and a heat exchanger assembly of the refrigerant cooling system are successively connected through a pipeline to form a refrigerant loop; a freeze water inlet pipe, a frequency converter cooling module, a freeze water outlet pipe and the heat exchanger assembly of the freeze water cooling system are successively connected to form a freeze water loop. According to the frequency converter cooling device, heat exchange for cooling is performed between water in the freeze water cooling system and a refrigerant in the refrigerant cooling system in the heat exchanger assembly, and the frequency converter is further cooled by virtue of water in the freeze water cooling system, and the frequency converter can be cooled in real time even if a circular cooling system of the air conditioning unit where the frequency converter is does not operate, so that the operating safety of the frequency converter is improved.

The invention discloses a carton O-shaped corrugated paper production device, which comprises a first cabinet, wherein a first corrugated roller is arranged inside the first cabinet, two sides of thefirst corrugated roller are movably connected with slots of a connecting piece through a fixing piece, one end of the connecting piece is connected with the top of the first cabinet, a second corrugated roller is arranged inside a control console at the bottom of the first corrugated roller, one end of the second corrugated roller is placed inside a third cabinet, one side of the third cabinet isfixedly connected with a second driving motor, while the other side of the third cabinet is provided with a control panel, and a controller is arranged on the upper end of the control panel. The carton O-shaped corrugated paper production device has the advantages that the cost of materials is reduced under the conditions of using the same paper and at the same pressure, thereby helping promote the benefits of carton manufacturing enterprises, and meanwhile corrugated papers can be properly heated in the corrugating process of paper used for manufacturing cartons, thereby facilitating the sticking of the corrugated papers.

The invention provides a glass cover plate circumferential polishing mechanism and circumferential polishing equipment. The glass cover plate circumferential polishing mechanism comprises a rotating motor, wherein a screw rod is fixedly arranged at the output end of the rotating motor, and a nut block is movably arranged on the screw rod; a dust removing block, wherein a glass cover plate cleaning brush is fixedly arranged on a circular bottom plate; a polishing block, wherein a polishing wheel is fixedly arranged on a rotating shaft, and a plurality of spraying covers are arranged on a water tank in a communicating mode; a polishing liquid box, wherein a stirring shaft is fixedly arranged in the center of a second transmission wheel, and a second rack plate can drive the second transmission wheel to rotate; and a cleaning rod, wherein a lead screw cleaning brush can be in contact with a lead screw and is used for cleaning the lead screw. According to the glass cover plate circumferential polishing mechanism and the circumferential polishing equipment, polishing liquid can be sprayed, generated glass chippings and disintegrating slag can be removed in time, the polishing liquid can be stirred to avoid precipitation, the lead screw is cleaned to avoid blocking movement of a nut block, a polishing motor is cooled in real time, functions are concentrated, and the glass cover plate circumferential polishing mechanism and the circumferential polishing equipment are quite worthy of popularization.

The invention relates to the technical field of dental handpieces, in particular to a dental handpiece with an airflow cooling system. The dental handpiece comprises a dental handpiece body, the dental handpiece comprises a back cover assembly, a handpiece, a dental handpiece core assembly, a transmission shaft assembly, a handle assembly, a connector assembly and a bending machine main body assembly; the handle assembly comprises a handle shell body, the handpiece is installed on the front end of the handle shell body, the dental handpiece core assembly is installed in the handpiece, and theback cover assembly is installed at the bottom of the handpiece; the bending machine main body assembly is installed on the back end of the handle shell body; the transmission shaft assembly is arranged at the front portion inside the handle shell body, the connector assembly is arranged at the back portion inside the handle shell body, the connector assembly and the bending machine main body assembly are both installed inside the handle assembly, and the front end of the connector assembly is connected with the transmission shaft assembly; the dental handpiece has the advantages that the useis convenient, the operation is convenient, and the dental handpiece cools the temperature in real time, protects components of gear, bearing and the like to be used at the normal working temperature,avoids easy damage of the components, ensures that oral cavities of patients cannot be scalded, and eliminates safety hazard.

The invention discloses a high-speed train cooling device. The high-speed train cooling device comprises an installation framework, a water-cooling assembly and an air-cooling assembly, wherein the water-cooling assembly and the air-cooling assembly are arranged on the installation framework, the water-cooling assembly comprises a heat exchanger, an expansion water tank and a shielding water pumpwhich are sequentially connected via pipeline, a water outlet of the shielding water pump is used for communicating with a water inlet of a traction converter, a water inlet of the heat exchanger is used for communicating with a water outlet of the traction converter, the water-cooling assembly comprises a centrifugal cooling fan and a centrifugal air filter, an air inlet of the centrifugal cooling fan is arranged corresponding to the heat exchanger and is used for introducing outside air and taking away heat in the heat exchanger, and the centrifugal air filter is arranged at a windward sideof the centrifugal cooling fan. By the high-speed train cooling device, synchronous cooling of the traction converter and a reactor can be achieved, and the high-speed train cooling device is simple in structure, light in weight, good in sealing performance and low in manufacturing cost and is convenient to maintain.

The invention relates to an unwinding system for a low-tensile PVC film. The unwinding system comprises an unwinding unit, a preheating unit, a cooling unit, a laminating unit and a winding unit whichare horizontally arranged in sequence, due to the fact that the film materials of an unwinding base can be gradually reduced, the unwinding base can change the speed of the unwinding rotating shaft in real time according to the speed of a roller shaft in the subsequent process, and the phenomena of film material deformation and edge folding are reduced as much as possible. By means of the material characteristics of heat softening and cold hardening of a PVC film material, uneven breadth and wrinkling occurring when the film material is unfolded by the unwinding unit are avoided; after the temperature of the film material is increased by the preheating unit, the film material is softened, and the situations of uneven breadth and wrinkling disappear; the film material enters the cooling unit to be hardened again, and the problems that the whole film material is prone to wrinkling, lotus leaf edges and the like in the unwinding process are solved; then, the film material is laminated with the adhesive sticker through the laminating unit to form a product; and finally, winding of the film material is completed through the winding unit.

The invention relates to the field of casting machines, in particular to a directional casting machine for nonferrous metals. According to the technical scheme, the directional casting machine for thenonferrous metals comprises a rack, a crystallizer is mounted on the rack, an opening is formed in one side of the crystallizer, and a steel belt is spliced on the open side of the crystallizer; a trapezoidal die cavity is formed between the steel belt and the crystallizer, the trapezoidal die cavity is in the shape of a trapezoidal column, a pouring gate is formed in one end of the trapezoidal die cavity, and a pull mechanism for driving the steel belt to continuously move is mounted on the rack. A driving mechanism for driving the pull mechanism to act is mounted on the rack, and an outputshaft of the driving mechanism is connected with the pull mechanism. According to the directional casting machine for the nonferrous metals, a casting is free of torsion yield stress, and the problemthat the casting produced by an existing casting machine is large in torsion yield stress is solved.

The invention discloses a brightness-adjustable LED mining lamp. The brightness-adjustable LED mining lamp comprises a mining lamp body and a driving power supply, wherein the driving power supply isarranged inside the mining lamp body. The mining lamp body comprises a mining lamp shell, a light-emitting device, a heat dissipation device, an adjusting device and a protection device, wherein the interior of the mining lamp shell is provided with a heat dissipation cavity for containing the heat dissipation device and a driving cavity for containing the driving power supply, the side, back on to the driving power supply, of the heat dissipation device is connected with the light-emitting device, and the adjusting device is connected with the light-emitting device and the driving cavity; andthe driving power supply is electrically connected with the light-emitting device, the heat dissipation device and the adjusting device. The brightness of the LED mining lamp during working can be improved, the intensity of the illumination can be automatically adjusted when the temperature is too high so as to decrease the temperature of the LED mining lamp, cooling can be carried out in real time, and elements in the LED mining lamp are prevented from damage; and when the voltage is unstable or short circuit occurs, a controller controls the LED mining lamp to stop working, so that the personal injury is prevented, the service life of the LED mining lamp is prolonged, and the LED mining lamp is convenient to use.

The invention relates to an electric hoist cooling device. The electric hoist cooling device comprises a main beam and an electric hoist installed on the main beam; the electric hoist can move in thelength direction of the main beam; a sliding base is installed on the upper portion of the main beam; a cooling assembly and a guiding assembly are installed on the sliding base; the cooling assemblycomprises a draught fan, a header pipe connected with the draught fan, a first branch pipe and a second branch pipe, wherein the first branch pipe and the second branch pipe are connected with the header pipe; the guiding assembly comprises a first V-shaped plate and a second V-shaped plate; the first V-shaped plate comprises a first supporting plate and a first guiding plate; the first supportingplate is provided with a plurality of first through holes; the second V-shaped plate comprises a second supporting plate and a second guiding plate; and the second supporting plate is provided with aplurality of second through holes. According to the electric hoist cooling device, due to the arrangement of the first guiding plate and the second guiding plate, flowing of wind is facilitated, windis blown to the electric hoist in a concentrated manner, and the electric hoist is made fast cooled; and due to the arrangement of a first spraying assembly and a second spraying assembly, when windblown out of the draught fan passes through water mist, water evaporates and absorbs heat, and cold wind is blown out.