44results about How to "Improve oil supply capacity" patented technology

A bridge prestress tensioning system comprises a computer unit, a tensioning instrument, a displacement sensor, a jack, a pressure sensor, a force sensor and a controller. The displacement sensor is arranged on the outer side of a cylinder barrel of the jack and connected with a piston rod, and the force sensor is arranged on a cylinder barrel base of the jack; the tensioning instrument comprises a temperature sensor arranged on the side wall of an oil tank, and the computer unit can send a signal and drives the jack to carry out tensioning operation through the controller; the controller is connected with the displacement sensor, the force sensor and the temperature sensor and transmits data information collected by the sensors to the computer unit to be further processed; and the force sensor, the displacement sensor and the temperature sensor are connected with the controller to achieve intelligence and standardization of bridge prestress tensioning work; and the system is scientific and reasonable in whole structure, convenient to install and operate, high in work automation degree, reliable in equipment running and capable of being widely suitable for being used in cooperation with various bridge prestress tensioning systems.

The invention relates to a common-rail high-pressure oil inlet / outlet valve assembly which comprises a plunger bushing; a plunger cavity, a connecting cavity and an oil inlet are formed in the plungerbushing; a plunger is inserted in the plunger cavity in a sliding manner; an oil outlet connector is mounted on the connecting cavity and is provided with a seventh oil passage; an oil inlet valve seat is mounted in the connecting cavity and is hermetically connected with the plunger cavity; a first oil passage and a second oil passage for communicating the oil inlet with the plunger cavity are formed in the oil inlet valve seat; the first oil passage is communicated with the plunger cavity; an oil inlet valve element is arranged on the second oil passage and is pressed against the second oilpassage to form a first seal surface; the first seal surface is used for opening or closing the second oil passage; an oil outlet valve seat is hermetically mounted between the oil inlet valve seat and the oil outlet connector; the oil outlet valve seat is provided with a fourth oil passage communicated with the first oil passage and the seventh oil passage; an oil outlet valve element is arranged on the fourth oil passage and is pressed against the fourth oil passage to form a second seal surface; and the second seal surface is used for opening or closing the fourth oil passage. The oil inlet / outlet valve assembly is simple in structure, the oil passages are reasonable in arrangement, the oil filling efficiency is high, and the sealing performance is high.

The invention relates to an oil supply device for a linear compressor. The oil supply device comprises first and second grooves which are buckled with each other and clamp an elastic film therebetween, and a first end cover covering on an outer surface of the bottom of the first groove; the first and second grooves and the elastic film enclose to form a first cavity and a second cavity respectively; an oil supply through hole and an oil absorption through groove are formed at the bottom of the first groove; the first end cover is provided with an oil supply blind groove and an oil absorption through hole; the oil absorption through hole is communicated with the oil absorption through groove, and an end surface where the oil absorption through hole is communicated with the oil absorption through groove is provided with a one-way oil absorption valve opened toward a direction close to the first cavity; the oil supply through hole is communicated with the oil supply blind groove, and an end surface where the oil supply through hole is communicated with the oil supply blind groove is provided with a one-way oil supply valve opened toward a direction away from the first cavity; the centre of the elastic film is connected with a moving component of the compressor or provided with a balance weight. When the linear compressor works, the elastic film reciprocates so as to change the volume of the cavity; if the volume of the cavity is larger, negative pressure is generated in the cavity, so that the oil absorption valve is opened and the oil enters the cavity; and if the volume of the cavity is smaller, the pressure in the cavity is increased, so that an oil discharge valve is opened and the oil enters a cylinder of the compressor.

A compressor comprises, in a container body, an electric element, and a compressive element driven by the electric element. An oil storage is provided in the bottom, and an oil pump is provided to suck up oil from the oil storage. The oil pump includes a cylinder fixed to a lower support frame, a rotator axially installed on the lower end of a driveshaft and operative to rotate within an inner space of the cylinder, and a suction pipe having an upper end connected to a communication notch formed in the cylinder and a lower end inserted and arranged in the oil storage. In this compressor, the upper end of the suction pipe is protruded into the communication notch of the cylinder to configure an oil residue pool.

An oil supply device for a hermetic compressor comprises: a crankshaft connected with a motor so as to rotate together with it and having a lubricating oil flow passage inside; a sleeve connected with the lower part of the crankshaft so as to become a One body, rotating together; an oil absorbing member arranged to maintain a uniform interval with the inner peripheral surface of the sleeve for oil absorption; and a supporting device for supporting the oil absorbing member to slide, the supporting device is connected between the sleeve and the oil absorbing member in order to maintain a static state. The oil-absorbing member is supported in such a way that it cannot rotate around the center of rotation of the sleeve, so that it is not affected by the vibration of the operating compressor, and a uniform gap is maintained between the inner peripheral surface of the sleeve and the oil-absorbing member, thereby Improve the reliability of fuel supply.

An oil surface lifting device of a rotary compressor. The compressor includes a closed shell, an electrical machine mechanism arranged in the closed shell, a compression mechanism located under the electrical machine mechanism, and an oil tank arranged on the bottom of the closed shell. A reservoir for gas-liquid separation is arranged outside the compressor, and a connecting pipe is connected between the reservoir bottom and the internal oil pool of the compressor. The connecting pipe for oil return is arranged between the reservoir bottom and the oil tank of the compressor, and the connecting pipe is also provided with a control device to control the conducting and closing of the connecting pipe. When the compressor runs, the control unit closes the connecting pipe to ensure the normal operation of the compressor; and when the compressor is in an unsteady shutdown state, the control device opens the connecting pipe; because of the suction-exhaust pressure balance, lubricating oil stored in the reservoir directly returns to the oil tank of the compressor through the connecting pipe, thereby increasing the oil surface level of the oil tank, and improving oil supply capacity of the compressor in starting. The oil surface lifting device has advantages of simple structure and reliable operation.

The invention relates to a lubricating oil supply device of reciprocal compressor. It is characterized by that on two side surfaces of the lub oil piston in said reciprocal compressor a spring fixing portion is respectively formed, the above-mentioned lubricating oil spring can be placed and fixed on the above-mentioned spring fixing portion, so that the above-mentioned lub oil spring always can be relained in the orignial position, and said structure can make the lub oil spring be repeatedly comperssed and extended on the fixed position always so as to can raise oil supply performance.

The invention provides a two-stage porous polyimide material, a preparation method thereof, a two-stage porous polyimide retainer and application of the two-stage porous polyimide retainer, and relates to the technical field of polymer retainers. The preparation method of the two-stage porous polyimide material provided by the invention comprises the following steps: dissolving rigid aromatic diamine, flexible aromatic diamine and aromatic dicarboxylic anhydride in a polar aprotic solvent, and carrying out condensation polymerization to obtain a polyamide acid mixed solution; mixing the polyamide acid mixed solution with a dehydrating agent, and carrying out imidization reaction to obtain polyimide molding powder; performing cold isostatic pressing on the polyimide molding powder to obtain a cold pressed blank; and carrying out hot isostatic pressing on the cold-pressed blank to obtain the two-stage pore polyimide material. A rigid-flexible monomer combination mode is adopted, the prepared two-stage porous polyimide material can realize intelligent regulation and control of oil containing and oil discharging according to different rotating speeds, the pressurization mode is more uniform, forming is convenient, and the preparation method is suitable for large-scale production.

The invention discloses a pulse oil-supply type oil duct of an engine cylinder body. The structure of the pulse oil-supply type oil duct of the engine cylinder body is as follows: a cam shaft bushing is arranged inside a cam shaft bearing hole on the engine cylinder body; a section of an oil tank and an oil outlet are arranged on the cam shaft bushing; and a T-shaped oil hole is processed on the cam shaft. The oil tank and the oil outlet on the cam shaft bushing are respectively communicated with the cam shaft and a rocker arm oil supply channel when the cam shaft rotates to a certain position; a main oil duct can supply oil to a crank bearing, the cam shaft and a rocker arm at the same time. The oil tank on the cam shaft bushing is communicated with an oil supply branch channel of the cam shaft, but the oil outlet on the cam shaft bushing cannot be communicated with the oil supply channel of the rocker arm when the cam shaft rotates to deviate from the position. By ingenious designs of the cam shaft bushing and the cam shaft, the cam shaft can finish twice and two paths of oil supply with different oil supply quantities after rotating a circle. Lubrication of the rocker arm can be achieved, at the same time the pressure of the main oil duct is basically constant, and parts such as a crank, the cam shaft and the like are guaranteed to be fully lubricated.

The invention discloses a hydraulic oil way for gantry lifting and potential energy recovery of an electric empty box stacking machine. The hydraulic oil way comprises a working connector for communicating with a working cavity of a working oil cylinder; a forward-reverse rotation oil pump; a main motor in mechanical transmission connection with the forward-reverse rotation oil pump so as to drive the forward-reverse rotation oil pump to work in an electric mode to supply oil, and return oil to drive the forward-reverse rotation oil pump to rotate in a power generation mode to generate power; an auxiliary oil pump; an auxiliary motor for driving the auxiliary oil pump to work to supply oil; and a hydraulic control proportional valve, wherein one side of the hydraulic control proportional valve communicates with the working connector, the other side of the hydraulic control proportional valve communicates with a port in one side of a first control switch valve set, and communicates with an oil tank through a second control switch valve set, a port in the other side of the first control switch valve set communicates with the forward-reverse rotation oil pump, and communicates with the auxiliary oil pump through a first one-way valve, and therefore the auxiliary oil pump can supply oil to the first control switch valve set. The problem that energy is not convenient to recover during oil return of an existing working oil cylinder can be effectively solved.

The invention discloses a multi-dimensional and parallel-swing sea wave power generation device. A top cover is fixedly connected with the top wall of a buoyancy box, one end of a three-degree-of-freedom movement pair is fixedly connected with the top cover, the other end of the three-degree-of-freedom movement pair is engaged with a swing rod, one end of the swing rod penetrates through the top wall of the buoyancy box and is fixedly connected with an outside device, the other end of the swing rod is fixedly arranged on an upper platform through the support of rib plates, a spring is fixedly connected with a shaft shoulder of the swing rod, six parallel hydraulic cylinders are arranged between the upper platform and a lower platform, piston rods of the six parallel hydraulic cylinders are hinged to the upper platform, cylinder bodies of the six parallel hydraulic cylinders are hinged to the lower platform, the lower platform is fixedly arranged on an oil mixture tank, the oil mixture tank is fixedly connected with the side wall of the buoyancy box, the oil mixture tank is connected with a hydraulic motor through a separating pipe and a return pipe, a generator is connected with the hydraulic motor, the generator and the hydraulic motor are arranged at the bottom of the buoyancy box, and an energy accumulator is connected with the hydraulic motor. The device has the characteristics that the service life is long, and the pollution is little; and while the energy of the sea wave in the transverse swinging is absorbed, the energy of the sea wave in the vertical direction can also be absorbed.

The invention discloses a novel optical cable manufacturing device which can ensure the coating uniformity and stability of factice in the manufacturing process of an optical cable. A method of usingthe oil immersion pad is used for coating so as to achieve a good coating effect. A vibration component is disposed to not only improve the oil supply performance of an oil supply head, but also provide vibration for the oil immersion pad so that the factice on the oil immersion pad is stably immersed in the oil. An oil-scraping component scrapes the oil by a holding frame and an oil-scraping ballso as to achieve good oil-scraping uniformity and high efficiency, guides an optical cable, does not damage the optical cable, and improves the manufacturing effect of the optical cable. Further, thecable-laying frame of the novel optical cable manufacturing device is provided with a plurality of reels in order to lay cables of different colors and basically realize the manufacture of various types of optical cables.

The invention provides a rotary machine oil pump structure, a compressor oil pump structure and a rotary compressor; the rotary machine oil pump structure includes a cylinder and a drive mechanism; the moving parts can reciprocate in the cylinder under the action of the drive mechanism; A pump oil chamber is formed, and the pump oil chamber is connected upward to an oil pipe, and the other end of the oil pipe is connected to the lubrication part of the rotating machine; the volume of the pump oil chamber can change periodically with the reciprocating motion of the moving parts; the drive mechanism passes through Rotate to drive the moving parts to do reciprocating motion, so that the moving parts squeeze the oil pump cavity for oil discharge or oil absorption; the solution provided by the invention can solve the problems of difficult low-frequency oil pumping, insufficient low-frequency lubrication and easy wear of existing compressors , so that the height of the compressor pump oil is no longer affected by the operating frequency of the compressor, and the oil supply capacity of the compressor pump oil is improved to ensure the lubrication effect.

The invention provides a scroll compressor which comprises a crankshaft, an upper end ring and a balance block, wherein the crankshaft is internally provided with a through eccentric through hole, and the side wall of the crankshaft is provided with an inclined oil channel; the upper end ring is fixedly connected with the crankshaft, the upper end ring is provided with an oil channel connecting part matched with the inclined oil channel, and the inclined oil channel is communicated with the eccentric through hole and the oil channel connecting part; the balance block is fixedly connected with the upper end ring and the balance block is provided with an oil deposition part communicated with the oil channel connecting part. According to the scroll compressor, partial lubricating oil reflowing from a main support frame is intercepted, is stored in the oil channel connecting part and the oil deposition part and is conveyed through the inclined oil channel of the crankshaft, so that the lubricating oil can be sufficiently supplied to all parts needing to be lubricated, the defect that the lubricating oil is supplied from the lower end of the crankshaft is overcome, the time of supplying oil upwards to the compressor is shortened, and the oil supply capability of the compressor is improved.

The invention discloses a pulse oil-supply type oil duct of an engine cylinder body. The structure of the pulse oil-supply type oil duct of the engine cylinder body is as follows: a cam shaft bushing is arranged inside a cam shaft bearing hole on the engine cylinder body; a section of an oil tank and an oil outlet are arranged on the cam shaft bushing; and a T-shaped oil hole is processed on the cam shaft. The oil tank and the oil outlet on the cam shaft bushing are respectively communicated with the cam shaft and a rocker arm oil supply channel when the cam shaft rotates to a certain position; a main oil duct can supply oil to a crank bearing, the cam shaft and a rocker arm at the same time. The oil tank on the cam shaft bushing is communicated with an oil supply branch channel of the cam shaft, but the oil outlet on the cam shaft bushing cannot be communicated with the oil supply channel of the rocker arm when the cam shaft rotates to deviate from the position. By ingenious designs of the cam shaft bushing and the cam shaft, the cam shaft can finish twice and two paths of oil supply with different oil supply quantities after rotating a circle. Lubrication of the rocker arm can be achieved, at the same time the pressure of the main oil duct is basically constant, and parts such as a crank, the cam shaft and the like are guaranteed to be fully lubricated.

The invention relates to an oil supply device for a linear compressor. The oil supply device comprises first and second grooves which are buckled with each other and clamp an elastic film therebetween, and a first end cover covering on an outer surface of the bottom of the first groove; the first and second grooves and the elastic film enclose to form a first cavity and a second cavity respectively; an oil supply through hole and an oil absorption through groove are formed at the bottom of the first groove; the first end cover is provided with an oil supply blind groove and an oil absorption through hole; the oil absorption through hole is communicated with the oil absorption through groove, and an end surface where the oil absorption through hole is communicated with the oil absorption through groove is provided with a one-way oil absorption valve opened toward a direction close to the first cavity; the oil supply through hole is communicated with the oil supply blind groove, and an end surface where the oil supply through hole is communicated with the oil supply blind groove is provided with a one-way oil supply valve opened toward a direction away from the first cavity; the centre of the elastic film is connected with a moving component of the compressor or provided with a balance weight. When the linear compressor works, the elastic film reciprocates so as to change the volume of the cavity; if the volume of the cavity is larger, negative pressure is generated in the cavity, so that the oil absorption valve is opened and the oil enters the cavity; and if the volume of the cavity is smaller, the pressure in the cavity is increased, so that an oil discharge valve is opened and the oil enters a cylinder of the compressor.