34results about How to "Reduce axial displacement" patented technology

The invention belongs to the technical field of material preparation and in particular relates to a preparation method of a WC-Co-cBN composite material. The preparation method of the WC-Co-cBN composite material comprises the following steps: firstly weighing WC, metal Co powder and cBN raw material in proportion, uniformly mixing, mixing by carrying out ball milling, drying the mixed raw materials in a drying oven at the temperature of 50-200 DEG C, then sieving with a sieve of 100-300 meshes, putting the dried raw materials into a mould, then placing the mould into a hot-pressing sintering furnace, heating the sintering furnace to 1200-1400 DEG C at a speed of 30-50 DEG C/min, insulating for 5-30 minutes, and maintaining pressure to be 20-50MPa, so that the WC-Co-cBN composite material is obtained. The preparation method of the WC-Co-cBN composite material has the advantages that the hot-pressing method is adopted, the sintering temperature is low, sintering time is short, and no phase transformation of cBN can be guaranteed while the WC-Co-cBN composite material has high shrinkage percentage and high volume density; meanwhile, hot pressing energy consumption is low, cost is low, operation is easy, and safety coefficient is high.

A beverage dispensing apparatus (100) is disclosed, comprising a solenoid pump (106) coupled between a fluid inlet (102) and a fluid outlet (104) for pumping the fluid from said inlet to said outlet, said pump comprising a spring-loaded linear pumping member (206) axially displaceable between a spring-loaded position (240) and a spring-released end position (230) and a controller (108) for the solenoid pump (106), said controller being arranged to energize the pumping member (206) into an intermediate position (235) between the spring-released end position (230) and the spring-loaded position(240). Consequently, the solenoid pump (106) has improved noise characteristics and can be used to control the flow rate of the fluid whilst still being energized in substantially every cycle of an alternating current.

The invention discloses a rotary compressor and a compression mechanism of the rotary compressor. The compression mechanism comprises an air cylinder assembly, a bearing and an exhaust device, wherein the air cylinder assembly comprises an air cylinder, the air cylinder is provided with a compression cavity, a mounting slot is formed in the bearing, a vent hole is formed in the inner wall of the mounting slot and is communicated with the compression cavity, the mounting slot is formed in a sector-shaped area formed by the fact that a reference line takes the center of the vent hole as a rotation center and rotates towards the two sides at a preset angle respectively, the preset angle is 45 degrees, and the reference line is a connection line between the center of the bearing and the center of the vent hole; the exhaust device is arranged in the mounting slot and comprises an exhaust valve plate, and one end of the exhaust valve plate covers the vent hole. According to the compression mechanism, the rigidity of the bearing is improved; when the compression mechanism is applied to the rotary compressor, the radial displacement of a rotor of a motor, caused by magnetic pull force, can be reduced, the abrasion of a crankshaft can be reduced, and meanwhile, the axial displacement, caused by the interference fit of a muffler and the operation temperature rise of the rotary compressor, of the end surface of the bearing is reduced.

The invention relates to a flue gas waste heat recovery device, which comprises a main cylinder, wherein the main cylinder is hollow inside; a heat conversion unit is arranged in the main cylinder; and the bottom end of the main cylinder is connected with a flue gas inlet device. The flue gas waste heat recovery device is characterized in that: the main cylinder is cylindrical, wherein the bottomof the main cylinder is provided with a flue gas distributor, the flue gas distributor is communicated with the flue gas inlet device, and the heat conversion unit is arranged above the flue gas distributor; the heat conversion unit comprises a cold water storage body, a hot water storage body and a heat exchange component, wherein the cold water storage body is externally connected with a water inlet pipeline, and a hot water outlet is externally connected with a water outlet pipeline; and the bottom of the main cylinder is provided with a condensed water outlet. The flue gas waste heat recovery device is suitable for non-industrial occasions, such as families, markets, hosts, restaurants and the like and has the advantages of simple structure, wide application range and capability of deeply utilizing heat in flue gas and potential heat energy in the flue gas; and core components of the flue gas waste heat recovery device are made of stainless steel materials, so that not only scale prevention capability of the product can be enhanced, service life is prolonged, but also quality of domestic water can be ensured.

The invention discloses a valve element assembly of a safety valve. The valve element assembly comprises a sliding seat, a thread sleeve arranged in the sliding seat, and a valve pad which is arranged in the thread sleeve and used for being matched with a liquid inlet connector of the safety valve, and the valve pad is provided with a conical groove. The valve element assembly is applied to the safety valve and can be used for controlling connection and disconnection of an oil path from a liquid inlet hole to a liquid discharge hole; after the valve element assembly is far away from the liquid inlet connector, large-flow overflow can be achieved, the flow of the safety valve is greatly increased, and the axial displacement of the valve element assembly can be reduced through short-time rapid overflow; by means of reduction of the axial displacement of the valve element assembly, the axial deformation of a reset spring can be reduced, and finally pressure fluctuation can be reduced.

The invention provides a flexible wheel, a harmonic transmission and a robot. The flexible wheel comprises a matching part (1) arranged at the open end of a flexible wheel body and used for cooperating with a wave generator, wherein the matching part (1) is provided with a first inner hole (2), and an angle of inclination alpha is formed between the hole wall of the first inner hole (2) and the central axis of the flexible wheel body. According to the flexible wheel, the axial force applied to the wave generator can be reduced, and the service life of the wave generator is prolonged.

The invention discloses a safety valve. The safety valve comprises a valve body, a liquid inlet connector with a liquid inlet hole, a spring seat and a reset spring and further comprises a valve element assembly which is movably arranged inside the valve body and used for controlling the liquid inlet hole to be opened and closed, the valve body is provided with a liquid discharging hole, the valve element assembly comprises a sliding base, a threaded sleeve arranged inside the sliding base and a valve gasket arranged inside the threaded sleeve, and the spring seat is provided with a first boss inserted into the reset spring. Through arranging the movable valve element assembly inside a valve shell, the valve element assembly can be used for controlling on-off of an oil path from the liquid inlet hole to the liquid discharging hole; when the valve element assembly gets away from the liquid inlet connector, large-flow overflowing can be achieved, the flow of the safety valve is greatly improved, and rapid overflowing within short time can reduce the axial displacement of the valve element assembly; in this way, axial deformation of the reset spring can be reduced, and finally pressure fluctuations can be reduced.

The invention discloses a leaky coaxial cable clamp mechanism and a leaky coaxial cable bearing system.The leaky coaxial cable clamp mechanism comprises a bearing support, a main clamp and at least two auxiliary clamps, the bearing support is fixed to an installation wall body, the main clamp and the at least two auxiliary clamps are all fixed to the bearing support, the at least two auxiliary clamps are arranged on the two sides of the main clamp at intervals, and the main clamp and the at least two auxiliary clamps are fixed to the bearing support. The auxiliary clamp can generate elastic deformation in the vibration state of the leaky coaxial cable so as to have a damping and buffering effect, and the main clamp is fixed relative to the bearing support in the vibration state of the leaky coaxial cable. According to the leaky coaxial cable clamp, the bearing requirement of the leaky coaxial cable can be met, the installation number of the leaky coaxial cable clamp mechanisms is effectively reduced, the situation that the bearing support is loosened due to the fact that the stress between the bearing support and the installation wall body is influenced by vibration can be avoided, the influence of the vibration on the stress between the main clamp and the leaky coaxial cable can be relieved or eliminated, larger clamping force can be applied to the leaky coaxial cable, and the leaky coaxial cable is prevented from being damaged. Therefore, the leaky coaxial cable is prevented from loosening, the safety performance is effectively improved, and axial displacement of the leaky coaxial cable under the action force of the tunnel wind tunnel effect is reduced or eliminated.

The invention discloses a switching mechanism for a large-flow overflow safety valve. The switching mechanism comprises a liquid inlet joint with a liquid inlet hole and further comprises a valve element assembly which can move relative to the liquid inlet joint and is used for controlling opening and closing of the liquid inlet hole, the valve element assembly comprises a nut and a valve pad arranged in the nut, and the valve pad is provided with a seal surface used for being matched with the liquid inlet joint, wherein a conical surface is adopted as the seal surface. According to the switching mechanism for the valve element assembly, by arranging the movable valve element assembly to be matched with the liquid inlet joint, the valve element assembly can be used for controlling connection and disconnection of an oil way from the liquid inlet hole to a liquid outlet hole, large-flow overflowing can be achieved when the valve element assembly is far away from the liquid inlet joint, the safety valve flow is greatly increased, axial displacement of the valve element assembly can be reduced through short-time quick overflowing, axial deformation of a reset spring can be reduced through axial displacement reduction of the valve element assembly, and pressure fluctuation can be reduced finally.

The invention discloses a safety valve, comprising a valve body, a liquid inlet connector with a liquid inlet hole, and a valve element assembly movably arranged in the valve body and used for controlling the opening and closing of the liquid inlet hole, wherein the valve body is provided with a liquid discharge hole, the valve element assembly comprises a sliding seat, a swivel nut arranged in the sliding seat, and a valve pad arranged in the swivel nut, and the valve pad is provided with a spherical groove. According to the safety valve, the movable valve element assembly is arranged inside a valve casing; the valve element assembly can be used for controlling the on-off of an oil path from the liquid inlet hole to the liquid discharge hole, after the valve element assembly is far away from the liquid inlet connector, mass-flow overflow can be realized, the flow rate of the safety valve is greatly increased, quick overflow in a short time can reduce the axial displacement of the valve element assembly, the axial displacement reduction of the valve element assembly can decrease the axial deformation of a reset spring, and finally pressure surge can be lowered.

The invention discloses an overflow safety valve. The overflow safety valve comprises a valve shell and a liquid inlet joint with a liquid inlet hole, and further comprises a valve core component movably arranged in the valve shell and used for controlling the opening and the closing of the liquid inlet hole, wherein the valve shell has a drain hole. The overflow safety valve is provided with the movable valve core component in the valve shell; the valve core component can be used for controlling the connection and the disconnection of an oil way from the liquid inlet hole to the drain hole; after the valve core component is far from the liquid inlet joint, the high-flow overflow can be realized; the flow of the safety valve is largely increased; the axial displacement of the valve core component can be shortened through quick overflow in a shorter time; the axial deformation of a return spring can be decreased through shortening the axial displacement of the valve core component; and finally, the pressure fluctuation can be reduced.

The invention discloses a safety valve, which comprises a valve body, a liquid inlet joint, a spring seat and a reset spring, wherein the liquid inlet joint is provided with a liquid inlet hole. The safety valve also comprises a valve core assembly; the valve core assembly is movably arranged in the valve body and is used for controlling the liquid inlet hole to be opened or closed; the valve body is provided with a liquid discharge hole; the valve core assembly comprises a sliding seat, a screw sleeve and a valve pad; the screw sleeve is arranged in the sliding seat; the valve pad is arranged in the screw sleeve, and is provided with a spherical groove; the spring seat is provided with a first lug boss inserted into the reset spring. The safety valve has the advantages that the movable valve core assembly is arranged in a valve case; the valve core assembly can be used for controlling the make-and-break state of an oil path from the liquid inlet hole to the liquid discharge hole; after the valve core assembly leaves far away from the liquid inlet joint, the high-flow-rate overflow can be realized; the flow rate of the safety valve is greatly improved; the axial displacement of the valve core assembly can be reduced through the short-time fast overflow; the axial displacement of the valve core assembly is reduced, so that the axial deformation of the reset spring is reduced; the pressure fluctuation can be finally reduced.

The invention discloses a valve core assembly of a safety valve. The valve core assembly comprises a sliding seat, a thread sleeve arranged in the sliding seat and a valve pad which is arranged in the thread sleeve and matched with a liquid inlet connector of the safety valve, wherein the valve part is provided with a spherical groove. The valve core assembly is applied to the safety valve and can be used for controlling on-off of an oil line from a liquid inlet hole to a liquid discharge hole, high-flow overflowing can be realized when the valve core assembly is far away from the liquid inlet connector, the flow of the safety valve is greatly increased, axial displacement of the valve core assembly can be reduced through short-term fast overflowing, axial deformation of a reset spring can be reduced through reduction of the axial displacement of the valve core assembly, and pressure fluctuation can be reduced finally.

The invention discloses a switching mechanism of an overflow safety valve. The switching mechanism comprises a liquid inlet connector and a valve core component, wherein a liquid inlet hole is formed in the liquid inlet connector; the valve core component is removable relative to the liquid inlet connector and is used for controlling the switching on and off of the liquid inlet hole; the valve core component comprises a nut and a valve pad which is arranged in the nut; the valve pad is provided with a sealing surface which is matched with the liquid inlet connector; the sealing surface is a spherical surface. According to the switching mechanism of the overflow safety valve, disclosed by the invention, through matching of the removable valve core component and the liquid inlet connector, the valve core component can be used for controlling the switching on and off of an oil way from the liquid inlet hole to a liquid outlet hole, large-flow overflow can be realized after the valve core component is far away from the liquid inlet connector, the flow of the overflow safety valve is greatly increased, the axial displacement of the valve core component can be lessened by fast overflow in a short time, the axial deformation of a reset spring is reduced when the axial displacement of the valve core component is lessened, and the pressure fluctuation can be finally reduced.