11results about How to "Lower oil temperature" patented technology

The utility model discloses a gearbox oil cooling heat dissipation device for a wind driven generator, which relates to the technical field of wind power generation equipment and comprises an assembly bracket, a first heat dissipation mechanism is arranged at the upper end of the assembly bracket, a second heat dissipation mechanism is arranged at the upper end of the assembly bracket, and an air cooling mechanism is arranged below the first heat dissipation mechanism. The first heat dissipation mechanism comprises a heat dissipation block, a heat dissipation pipe is wound around the upper end of the heat dissipation block, pump bodies are installed at two ports of the heat dissipation pipe, and connecting pipes are fixedly installed at the other ends of the two pump bodies. Hot oil in the gear box flows in the heat dissipation pipe after being pumped out through one set of pump bodies, heat is transmitted to the heat dissipation block, cooling liquid in the heat dissipation block can absorb the heat, meanwhile, the two sets of fans on the assembly supporting frame conduct air cooling on the heat dissipation block and the heat dissipation pipe, the double heat dissipation mode that oil cooling and air cooling are combined is achieved, and the heat dissipation efficiency is improved. The heat dissipation efficiency is greatly improved, and the oil temperature in the gearbox can be effectively reduced.

The utility model discloses an automobile steering worm, which belongs to the technical field of worms, and comprises a first worm, a second worm, a worm gear and a hollow structure, the right side of the first worm is fixedly connected with the worm gear, the inner side of the worm gear is provided with the hollow structure, and the right side of the worm gear is fixedly connected with the hollow structure. The first worm, the second worm, the worm gear and the hollowed-out structure are used in cooperation, the hollowed-out structure is communicated with a hydraulic system and can serve as an oil flowing channel, heat generated in the steering process is helped to be transmitted, the oil temperature is reduced, power assisting failure caused by overheat of hydraulic oil is avoided, meanwhile, the material consumption can be reduced through the structural design of the hollowed-out structure, and the cost is reduced. And the overall weight of the steering system is reduced, so that the control response speed and the suspension comfort of the vehicle are improved, and particularly, the effect is more obvious in high-speed running or curves.

This invention discloses a hydraulic system for center-position locking of an electronically controlled steering shaft. The P1 port of the hydraulic selector valve is connected to a steering pump, and the P2 port is connected to a variable displacement piston pump. The B port of the hydraulic selector valve is connected to an accumulator. The accumulator is connected to the electronically controlled axle locking hydraulic circuit, providing high-pressure oil to achieve center-position locking of the electronically controlled axle locking cylinder. Port 1 of the dual-circuit steering gear is connected to port A of the hydraulic selector valve. The second steering pump is connected to port 1 of the other circuit of the dual-circuit steering gear, and ports 2 of the dual-circuit steering gear are both used for return oil. The left and right steering cylinders of the mechanical steering shaft are connected to the high-pressure oil ports of the dual-circuit steering gear to achieve hydraulic power steering. This invention, through the hydraulic selector valve, allows the emergency steering oil source of the mechanical steering shaft and the center-position locking oil source of the electronically controlled steering shaft to share the same oil pump device, prioritizing the emergency steering function of the mechanical steering shaft, reducing energy consumption, and saving on the number of oil pumps.

A novel hydraulic pump station for mining includes an oil tank, a frame, and a control valve assembly mounted on the oil tank. The oil tank is located on top of the frame, and an oil pump assembly is mounted on the frame directly below the oil tank. The interior of the oil tank is divided into a return oil zone and an intake oil zone by a partition. The oil inlet of the oil pump assembly is connected to the intake oil zone via an oil suction filter, and the oil outlet of the oil pump assembly is connected to the inlet of the control valve assembly via a two-stage high-pressure filter. Water coolers and spray mechanisms are installed on both the front and rear sides of the oil tank. The water inlet of the water cooler is connected to a mining static pressure water supply system, and the water outlet of the water cooler is connected to the water inlet of the spray mechanism. The oil inlet of the water cooler is connected to the return oil port of the control valve assembly, and the oil outlet of the water cooler is connected to the return oil zone via a return oil filter. This invention features a compact overall structure, meets the requirements for use in confined spaces, and offers high cooling efficiency.

The application relates to the technical field of damping and buffering oil cylinders of self-dumping trucks, in particular to a damping and buffering oil cylinder of a self-dumping truck, which comprises a cylinder body assembly, a piston assembly, an elastic reset assembly, an adjusting device and a sealing assembly. A chamber is arranged in the cylinder body assembly, the piston assembly realizes hydraulic medium flow damping through a shunt channel and a throttle hole, the elastic reset assembly provides a reverse reset force, the adjusting device adjusts the hydraulic medium flow rate through a conical valve core, and the sealing assembly adopts multiple sealing rings and a dust cover to prevent impurities from entering and leaking. In addition, the outer wall of the cylinder body is provided with cooling fins, and the piston rod is coated with a wear-resistant coating to enhance the durability. The application can simplify the structure, reduce the maintenance cost, improve the buffering performance and reliability, and meet the high-strength impact working condition requirement.

The present application relates to a hydraulic electromechanical system, comprising: a hydraulic servo pump group, a check valve, a first to third directional valve, a hydraulic actuator and an accumulator. The oil inlet of the first directional valve is connected to the hydraulic servo pump group, and the oil return is connected to the oil tank; the input of the check valve is connected to the second main oil port of the first directional valve; the oil inlet of the second directional valve is connected to the output of the check valve, and the oil return is connected to the oil tank; one oil port of the hydraulic actuator is connected to the first main oil port of the first directional valve, and the other oil port is connected to the second main oil port of the second directional valve; wherein the accumulator is connected to the hydraulic actuator through the second and third directional valves. The control method of the system comprises: subtracting the position feedback from the target given position quantity, then sequentially passing through the servo pump control module and the hydraulic actuator control module, and then outputting the position control result, wherein the position feedback is from the output of the hydraulic actuator control module. The present application can realize precise position follow-up control, and is low in cost, energy-saving, durable and reliable.

The utility model relates to an oil way system for a speed reducer of a powder concentrator, which aims at solving the technical problems that the existing oil way system is poor in heat dissipation and easy to damage, and adopts the technical scheme that lubricating oil is filled in a speed reducer case, an outlet of the speed reducer case is connected with a transition oil tank through an oil conveying pipe, and the bottom of the lubricating oil in the transition oil tank is connected with an oil pump through an oil conveying pipe; the oil pump is connected with the oil filter, the oil filter is connected with the cooling oil tank, the cooling oil tank is connected with the speed reducer box, and the cooler is arranged on the other side of the cooling oil tank. The monitoring module comprises a temperature sensor and a pressure gauge, the temperature sensor is arranged at an outlet of the cooling oil tank, and the pressure gauge is arranged on the oil conveying pipe. The control system is electrically connected with the oil pump, the oil filter, the cooler, the temperature sensor, the pressure gauge and the early warning module. Impurities can be effectively prevented from entering an oil way, the blocking risk is reduced, oil liquid is cooled, the oil temperature is reduced, the lubricating effect is improved, and the service life is prolonged.

The utility model discloses an American transformer with a protection effect, which comprises a transformer body and a first cover plate fixedly arranged on the transformer body, the first cover plate is provided with a rotatable transmission arm, the transmission arm is provided with a rotatable sun shield and is positioned above each outer side wall of the transformer body, and the sun shield is arranged on the transformer body. Damping positioning devices are arranged between the transmission arm and the first cover plate and between the transmission arm and the sun shield and used for fixing the transmission arm or the sun shield to the adjusted position, and a second cover plate is arranged above the first cover plate. The angle between the sun shield and the first cover plate and the included angle between the sun shield and the outer side wall of the transformer body are adjusted through the transmission arm, the sun-shading range and the extension angle are controlled, flexible position adjustment is achieved, the first extension part blocks rainwater from splashing in, the second extension part guides rainwater to be drained, the angle of the sun shield is adjusted, strong light is effectively shielded, the oil temperature is reduced, and aging of insulating materials is delayed; the operation stability is improved, the service life is prolonged, and the heat insulation effect is enhanced through the reflective coating.

This utility model belongs to the technical field of plate heat exchangers, specifically a plate heat exchanger for siphon oil cooling. It includes a heat exchanger body composed of multiple thin plates, with an inlet and an outlet. Multiple support blocks are fixedly connected to both ends of the heat exchanger body. One end of each support block is rotatably connected to a sliding sleeve via a rotating rod, and a knob is fixedly connected to the other end of the rotating rod. Due to its unique structure, this plate heat exchanger allows for changes to the interface positions without altering the overall dimensions, making it more suitable for actual construction conditions and facilitating on-site installation. This reduces installation workload and saves piping materials. The plate heat exchanger's thin-plate design creates turbulence, achieving a heat transfer coefficient 3-5 times that of shell-and-tube heat exchangers. It is particularly suitable for cooling high-viscosity oils, rapidly reducing oil temperature, preventing oil oxidation or equipment wear due to overheating, reducing replacement frequency, and lowering subsequent maintenance costs.

The application relates to the technical field of diaphragm compressors, in particular to a diaphragm compressor oil cavity structure and a diaphragm compressor. The diaphragm compressor oil cavity structure comprises the following: an oil side membrane head is provided with an oil distribution disc and an oil cylinder sleeve; a piston is arranged in the oil cylinder sleeve; a diaphragm is arranged between the oil distribution disc and the gas distribution disc; a space between the diaphragm and the piston constitutes an oil cavity; a flow inducer is arranged in the oil cavity between the oil distribution disc and the oil cylinder sleeve, and the flow inducer is suitable for guiding hydraulic oil to flow from the periphery of the flow inducer so as to block the hydraulic oil from directly impacting the central area of the diaphragm. According to the application, the flow inducer is arranged in the oil cavity, the hydraulic oil driven by the piston first passes through the flow inducer to change the flow field characteristics, the flow of the hydraulic oil after the flow induction is more uniform, and then the diaphragm is driven to deform through the oil distribution disc; the hydraulic oil after the flow induction no longer impacts the central area of the diaphragm, the deformation environment of the diaphragm is improved; the impact force of the hydraulic oil on the central area of the diaphragm is eliminated, the service life of the diaphragm is prolonged, and the efficiency of the diaphragm compressor is improved.

The utility model discloses a compressor lubricating oil recovery and consumption reduction device, which comprises a compressor main body, the bottom surface of the compressor main body is connected with a mounting plate, the front surface and the back surface of the mounting plate are connected with mounting blocks, the bottom surface of the mounting plate is provided with a groove, the inner wall of the groove is connected with a rubber pad, and the rubber pad is connected with the compressor main body. The left side face of the compressor body is connected with an oil conveying piece. According to the device, through cooperative operation of the induced draft fan and the condensation backflow pipe fitting, oil gas generated by the compressor body is efficiently sucked into the liquefaction pipe and directly flows back to the low-level oil tank after being cooled and liquefied through demineralized water in the threaded condensation pipe, and stable supplementation is achieved through the combination of the supplementation oil tank, and meanwhile lubricating oil in the low-level oil tank is conveyed to the high-level oil tank through the oil conveying pump; the low-temperature lubricating oil flows back to the low-position oil tank to form a circulating system in a high-position-to-low-position self-flowing lubricating mode, meanwhile, the condensed and refluxed low-temperature lubricating oil is mixed with the lubricating oil in the tank, the overall oil temperature is reduced, the lubricating performance of the lubricating oil is improved, and components such as compressor gears can be effectively cooled.