286results about How to "No stuck phenomenon" patented technology

The invention discloses a measurement device for residual carbon quantity in fly ash. The device comprises a sampling unit, a measurement unit and a control unit, wherein the sampling unit is connected with an ash collecting device in the measurement unit through an ash collecting pipe; in the measurement unit, four crucibles are uniformly arranged on a rotating device along the circumference, the ash collecting device, a burning device and an ash discharge device are respectively arranged above the crucibles, a weighing device is arranged below the crucibles, an ejector rob is arranged on an elevating device, the ash collecting device, the ash discharge device, the rotating device, the elevating device and the weighing device are all connected with an electric device, and the burning device is connected with a temperature controller; and the measurement unit is connected with the control unit by the electric device. The invention has the advantages of excellent ash collection and discharge effect, high accuracy, no noise and no clamp phenomena.

The invention relates to a manufacturing method of a high-precision plunger, the material adopts alloy steel or bearing steel and the technology adopts the flow of machining, heat treatment and grinding; the specific heat treatment steps are that: the plunger is preheated at a temperature of 350-400 DEG C for 40-50 minutes; the plunger is placed into the carburization heat treating furnace, then the temperature is raised to 840 DEG C and is kept for 30 minutes, the carbon potential (CP) is controlled to be 0.4, then the temperature is raised to 880 DEG C and the carbon potential (CP) is raised to 0.8 and kept for 20 minutes, then a surface carburization is made under the furnace temperature of 880 DEG C and the CP of 0.8 for 180 minutes, then the carbon potential is reduced to 0.7 for ten minutes, the furnace temperature is kept at 880 DEG C, then the surface carburization is made under the furnace temperature of 880 DEG C and the CP of 0.7 for 30 minutes, then is cooled to 100 DEG C for 50 minutes, and finally the temperature is raised to 800 DEG C for 10 minutes and then the plunger is removed from the furnace after keeping for 50 minutes at the temperature of 800 DEG C; is quenched in the oil for 15-25 minutes, the oil temperature is kept at 80 DEG C; the plunger is rinsed; and finally is tempered in a tempering furnace for 170-190 minutes at the temperature of 175-185 DEG C. The invention is environment-protective and the manufactured plunger has high precision.

The winder tube coupling for a spinning or twisting spindle is so structured that gripping of a winder tube with an upper part of the spindle is realized by a joining part of a positive motion coupling composed of (two or more) recessed parts and (two or more) protrusions. The recessed parts are arranged on the upper part of the spindle and formed into vertical channels, and the protrusions are arranged on the winder tube and formed into cylindrical pegs, so that the pegs are engaged with the vertical channels. While the spindle is operating, the pegs are arranged in the direction of the top of the spindle on stopping surfaces where the vertical channels are made to be narrowed. A cap having the vertical channels is preferably mounted on the upper part of the spindle.

The invention discloses a directly moving type high-flow directional flow servo valve and a control system using the servo valve. A valve core of the servo valve is pushed by a cam shaft driven by a servo motor; the cam shaft comprises an eccentric section and a driving section; one end of the valve core is pressed and leaned against a shaft surface of the eccentric section; a zero position sensing head is arranged on the shaft surface of the driving section; an inductive sensor which is matched with the zero position sensing head is arranged on a cam box; the inductive sensor is connected with a controller; and the controller is used for receiving a signal of the inductive sensor, controlling the servo motor to rotate back and forth in a small scope and performing the zero position positioning on the valve core. The servo valve is high in response speed and high in control precision. Meanwhile, the zero position positioning of the valve core is high in accuracy, is free from temperature null shift and is high in repeating precision. The adjusting time for the zero position positioning is short and a hydraulic system is relative stable when the zero position is adjusted.

The invention relates to a parallel gate valve comprising a valve body, a valve cover, a valve seat, a valve rod and a valve plate assembly, wherein the valve cover is arranged on the top of the valve body; the upper part of the valve body is provided with an upper cavity, and the lower part of the same is provided with a flow passage; the valve seat is arranged in the flow passage and provided with a valve plate groove matched with the valve plate assembly; the valve plate assembly is arranged in the valve plate groove; the valve rod penetrates through the upper cavity from the valve cover; the valve rod and the valve cover are sealed by utilizing a sealing structure; and the lower end of the valve rod is connected with the upper part of the valve plate assembly. The parallel gate valve is characterized in that the valve plate assembly comprises a left valve plate, a right valve plate, a middle spring, a valve plate sleeve, an upper fixing ring and a lower fixing ring, wherein the left valve plate and the right valve plate are symmetrically arranged; the abutted surface of the left valve plate and the right valve plate is provided with a spring cavity; and the middle spring is arranged in the spring cavity. The invention has the advantages of ingenious, compact and reasonable structure, long service life, better sealing effect and low manufacture and maintenance cost, and can not generate the top opened phenomenon of the valve plate assembly when the valve plate assembly is opened, thereby preventing the drag mark phenomena of the valve plate assembly and the valve seat.

The invention discloses a multifunctional filtration type two-way telescoping anti-theft gate valve. The multifunctional filtration type two-way telescoping anti-theft gate valve comprises a valve body, a valve deck, a rotary cover, a lower valve deck, a valve rod and locking nuts. The valve deck is arranged above the valve body, a square hole is formed in the other end of the valve rod, and a locking blind hole and a positioning blind hole are formed in the upper end face of the valve deck in a spaced mode. A rotatable functional plate is arranged between the rotary cover and the valve deck, and a locking hole which a piece of locked magnetic steel can pass through, and a positioning hole matched with a piece of movable magnetic steel are formed in the functional plate. A circular groove is formed in the side wall of the lower end of the rotary cover, and a magnetic conduction iron ring is arranged in the circular groove. A positioning groove and a hexagonal hole used for opening and closing are formed in the upper end face of the rotary cover. A fixing hole is formed in the outer side wall of the valve deck. An O-type ring is further arranged in the outer side wall of the valve deck and below the rotary cover. The valve body is located at a gate plate water flow control port, and filter screens are arranged between the valve body and a water inlet channel and between the valve body and a water outlet channel. A sliding telescopic pipe is arranged between a water inlet and a water outlet of the valve body. The multifunctional filtration type two-way telescoping anti-theft gate valve is reasonable in structural design, convenient to install and detach and low in cost, has the two-way telescoping movable connection and filtration functions and can compensate for a pipeline. The multifunctional filtration type two-way telescoping anti-theft gate valve can be used as either an anti-theft valve or an ordinary gate valve and is flexible to use and wide in application range.

The invention discloses an automatic forming device for producing baking-free bricks, and belongs to the field of brick making machines. The automatic forming device comprises a frame, a blanking opening is formed in the frame, a forming material pushing mechanism is arranged above the blanking opening and connected with a first hydraulic cylinder, a forming mechanism is arranged below the blanking opening and connected with a second hydraulic cylinder, raw materials penetrate the forming material pushing mechanism, enters the forming mechanism and squeezed into bricks by the second hydraulic cylinder, the bricks are pushed onto the frame by the second hydraulic cylinder, and the first hydraulic cylinder drives the forming material pushing mechanism, so that the bricks are pushed onto a delivery mechanism and conveyed. The automatic forming device helps to solve the problems of complicated structure and cumbersome production process of an existing brick making machine, the bricks can be continuously squeezed and formed, production efficiency is improved, the automatic forming device is simple in structure and low in machining cost, and productive benefits of enterprises can be improved.

The invention relates to the technical field of screwdrivers, in particular to a full-automatic accessory screwdriver which comprises an electric screwdriver, a coordination machine, a delivery pipe for delivering screws and a screw transmitting device, wherein the screw transmitting device is provided with a decelerating bent groove and a guide tube. In the invention, mechanical motility is mainly utilized, full automation during the delivering process is realized by a tilting structure and the self gravity of the screw, not only the time for manually grabbing the screw and the use cost are saved, but also the screws entering a material bearing space can be delivered to the entrance for the screw completely, and especially, nail clamping phenomenon is avoided during the continuous delivery process; and the screw transmitting device is internally provided with an electronic automatic monitoring energy-saving device, and when the delivery pipe for delivering the screws is filled with screws to the monitoring position, the device can automatically cut off the power, and then restore to work in the set time, thus saving energy source.

The invention discloses a flexible tunneling machine for installing a sleeve, belonging to the technical field of underground oil-gas reservoir exploitation. The tunneling machine comprises a flexible cutter head, a cutter head supporting plate, a conical crushing device, a front shell, a fixing device, a dynamic system, a rear shell, oil cylinders, a recovery system, a slurry inlet/outlet pipe, a slurry nozzle and a cutter head positioning pin, wherein the flexible cutter head is connected with the cutter head supporting plate through the cutter head positioning pin; the flexible cutter head is connected with a rotary main shaft of the conical crushing device; the rotary main shaft of the conical crushing device is connected with the main shaft of the dynamic system; the conical crushing device is welded in the front shell; the recovery system is arranged at the tail part of the rear shell; the oil cylinders are arranged on the front shell and the rear shell through fixing seats; the slurry inlet/outlet pipe is fixed below the inner part of the rear shell; and the slurry nozzle is arranged on the conical crushing device. The flexible tunneling machine for installing the sleeve is reasonable in structural design, correct and efficient in steel sleeve mounting position, free of end part sinking phenomenon, simple and reliable in recovery scheme and free of clamping phenomenon.

The invention provides a desulphurized flue gas damper. The desulphurized flue gas damper comprises an outer frame, at least one shaft mounted on the outer frame and baffles fixed to the shafts, wherein the multiple shafts are mounted, the shafts are evenly distributed along the outer frame; sealing strips are arranged on the two baffles; the sealing strips are arranged on the upper edges and the lower edges of the baffles; and the sealing strips are in a fan shape, are elastic and can stretch out and retract. Each baffle is of a multi-layer composite structure, and cavities are formed in the two ends of the innermost layer correspondingly. An electromagnet is arranged in each cavity. The magnetic poles of electromagnets between the upper baffle and the lower baffle are opposite. The fan-shaped sealing strips are designed between two layers of blades, sealing air with the pressure being at least 1000 Pa higher than that of flue gas is introduced into the baffles, and a sealing air insulation layer is formed between the two layers of baffles to prevent flue gas flow from passing through. The blades are of a composite multi-layer structure so that the strength and rigidity of the blades can be improved. The sealing effect of the desulphurized flue gas damper is further improved through the electromagnet principle.

The invention discloses a forced feeding device. The forced feeding device comprises an impeller box, wherein an upper-layer impeller chamber, a lower-layer impeller chamber and a separation plate arranged between the upper-layer impeller chamber and the lower-layer impeller chamber are arranged in the impeller box; the upper-layer impeller chamber is internally provided with a material distribution impeller and the lower-layer impeller chamber comprises a feeding impeller chamber and a quantitative impeller chamber; a crossed part of the feeding impeller chamber and the quantitative impeller chamber is communicated; a feeding impeller is arranged in the feeding impeller chamber; a quantitative impeller is arranged in the quantitative impeller chamber; the rotating direction of the feeding impeller is opposite to the rotating direction of the material distribution impeller. According to the forced feeding device, the quantitative impeller chamber is arranged and surplus materials in the quantitative impeller chamber are added into the feeding impeller chamber again so that the materials flow smoothly in the forced feeding device; a material caking phenomenon is avoided so that the filling stability of the materials is ensured.

A novel transmission and suspension system comprises driving devices and a suspension device; the two same driving devices are hinged to the suspension device; the driving device comprises a direct-current servo motor, a planetary reducer, a gear box and a driving wheel; the suspension device comprises a rectangular spring, a large adjusting nut and a spring guide shaft. The direct-current servo motors in the two sets of the same driving devices are connected with driving wheels through gearboxes respectively, so that the positions of the two differential driving wheels, which are staggered from the planetary reducer through the gearboxes, are formed; the spring guide shaft penetrates through a waist-shaped hole in the left end of the gear box, and the rectangular spring penetrates throughthe spring guide shaft and is arranged between the adjusting large nut and the gear box. In addition, the invention further discloses a 500 KG-loaded compact AGV.

The invention relates to a chain bar type permanent magnet filter. The chain bar type permanent magnet filter comprises a box, magnetic bar chains which are arranged in the box and can rotate around themselves, sludge scraping mechanisms arranged on the magnetic bar chains and sludge tanks which are arranged under the sludge scraping mechanisms and located in the magnetic bar chains; sludge conveying mechanisms are arranged in the sludge tanks, and each magnetic bar of the magnetic bar chains is sleeved with a scraping sleeve in a matched mode; each sludge scraping mechanism comprises a moving block capable of moving in the axial direction of the corresponding magnet bars in a reciprocating mode, two scrapers capable of only swinging in the axial direction of the corresponding magnetic bars are hinged to the lower portion of each moving block, can swing towards the side close to each other and reset and cannot swing to the side far away from each other, and the bottoms of the scrapers are lower than the tops of the scraping sleeves when the scrapers do not swing. The filter is simple in structure, low in cost, capable of ensuring continuous operation, good in scraping effect and convenient to maintain.

The invention discloses a tube segmental automatic erasing moisture analyzer which comprises a supporting sleeve and a signal processing unit, wherein the lower end of the supporting sleeve is connected with tube segments; the supporting sleeve is provided with a micromotor connected with a control unit; a reciprocating mechanism is arranged in the supporting sleeve; a probe and an erasing sleeve are arranged under the reciprocating mechanism; and the probe or the erasing sleeve is connected with the reciprocating mechanism. The analyzer is characterized in that: the reciprocating mechanism consists of a master screw outer sleeve, a master screw, a screw rod, a ball bearing, a limit regulating sleeve and a connector body, wherein the master screw outer sleeve is arranged on a shaft of the micromotor; the master screw, the screw rod and the ball bearing are arranged in the master screw outer sleeve; the limit regulating sleeve is arranged at the upper end of the screw rod and the connector body is connected with the lower end of the screw rod. The tube segmental automatic erasing moisture analyzer has the advantages of simple structure, easy assembly and use, low production cost, reliable work, accurate measuring data and reasonable assembly position of each part.

The invention relates to an automobile door-window frame sealing strip automatic punching cutting production line. The automobile door-window frame sealing strip automatic punching cutting productionline comprises a length detection device, a rolling pressing device and an end cover assembly tooling, wherein the length detection device, the rolling pressing device and the end cover assembly tooling are arranged from left to right in sequence, the left side of the length detection device is provided with a first motor, the rear of the first motor is provided with a punching machine and punching cutting molds matched with the punching machine, the left side of the rolling pressing device is provided with a second motor, the rear of the second motor is provided with a fixed-length shearing-off device, the left side of the end cover assembly tooling is provided with a third motor, and the rear of the third motor is provided with an end cover visual screening mechanism. The automobile door-window frame sealing strip automatic punching cutting production line is convenient to use, low in equipment cost and high in automation degree, and the labor cost is greatly lowered.

The invention discloses a pressure balance type inverted cock valve which comprises a valve body, a cock, a valve rod and padding. The cock is an inverted conical cock with the lower end being larger than the upper end. The cock is arranged in an inner cavity of the valve body, the valve rod drives the cock to rotate, a sealing face of the cock is a conical face, the valve rod is connected with the cock through a cross connector, a cylindrical spring or a belleville spring is arranged between the valve rod and the cock, the lower end of the valve body is fixedly provided with a valve cover, and the valve cover is provided with an adjustment shaft. The lower end of the adjustment shaft penetrates out of the valve cover, and the upper end of the adjustment shaft abuts against the cock. the lower end of the cock is provided with a first check valve, a sealing grease groove is formed in the sealing face of the cock, an oil storage tank is arranged in the valve body, the oil storage tank of the valve body is communicated with the sealing grease groove of the cock, and an oil filling valve communicated with the oil storage tank is arranged outside the valve body. The pressure balance type inverted cock valve can be used under high temperature, high pressure and severe work conditions, and has the advantages of being reliable in sealing, small in operation torque, long in service life, and the like.

The invention discloses an integrated selection valve capable of being connected and matched with a drive device. The selection valve comprises a valve body, a piston capable of moving in the valve body and a reset piece. The valve body is provided with an air inlet and an air outlet. The piston is connected in the valve body in a sealing manner. A first space is formed between the upper portion of the piston and the inner wall of the valve body. The air inlet communicates with the first space. The valve body is provided with a first channel communicating with the first space and the drive device. A second space is formed between the lower portion of the piston and the inner wall of the valve body. The valve body is provided with a second channel communicating with the second space and the drive device. A third space is further formed between the bottom of the piston and the valve body and internally provided with a buffering structure capable of buffering the piston when the piston moves along the valve body. The integrated selection valve is small in opening force and good in sealing performance, action tests of 500 times can be achieved, the assembled structure is simple, and the service life is long.

The invention provides a multistage hydraulic mechanical garbage incinerator, which comprises a feeding port, a feeding fire grate, an incinerating fire grate, a primary air supply system and a secondary air supply system. The incinerating fire grate is longitudinally divided into five units, wherein the first unit, the second unit, the third unit and the fourth unit are standard units, the fifth unit is a tail end lengthened unit, each unit comprises a plurality of sliding fire grate segments, turning fire grate segments and fixed fire grate segments, and the incinerating fire grate is integrally divided into a drying section, a burning section and a burnout section by the five units along the garbage moving direction. The multistage hydraulic mechanical garbage incinerator is characterized in that a limiting support device for limiting a feeding trolley to move upward is arranged on the upper surface of a tail of the feeding trolley of the feeding fire grate. By the aid of the multistage hydraulic mechanical garbage incinerator, the shortcomings of an existing garbage incinerator are improved, and burnout ratio of garbage incineration is increased.

The invention provides a moving pavement with biarc guide rail driving devices. According to the technical scheme, an arc-shaped main guide rail and an arc-shaped return guide rail are arranged at the bottom of the moving pavement, and the main guide rail and the return guide rail are in smooth transition with the ground; a pressing rail is arranged on the main guide rail, rolling wheels are arranged between the main guide rail and the pressing rail, the pressing rail is matched with the main guide rail in shape, a return guide rail pressing rail is arranged on the return guide rail, rolling wheels are arranged between the return guide rail and the return guide rail pressing rail, the return guide rail pressing rail is matched with the return guide rail in shape, the main guide rail is connected with the pressing rail through a C-shaped clamping plate, the return guide rail is connected and supported with a main supporting plate, the main supporting plate is fixed to a side plate, the side plate is fixed to a truss through angle steel, and a round head side plate is arranged in front of the side plate. The moving pavement has the advantages that the upper portion and the lower portion of the moving pavement are provided with the biarc guide rail driving devices of arc guide rail driving devices, and therefore when the moving pavement reaches the ground, the moving pavement can reach the ground in a smooth transition mode, the phenomenon of blocking is avoided, and pedestrians and shopping cars can reach the ground stably.