40results about How to "Avoid impact wear" patented technology

The invention discloses an electromagnetic valve of an automatic gearbox. The electromagnetic valve comprises an outer housing, a movable iron core and an electromagnetic coil component assembled inside the outer housing, wherein the movable iron core is assembled at the center of the electromagnetic coil component; an ejector rod is arranged at the center of the movable iron core; a valve body is assembled at the front part of the outer housing; a pressure inlet and a pressure outlet are formed in the valve body; a pressure cavity is formed in the valve body; a valve element is arranged inside the pressure cavity; the front end of the ejector rod is matched with the valve element; a pressure storage chamber is further arranged inside the valve body, and is communicated with the pressure cavity; a piston, a spring, a gasket and a clamp spring are arranged inside the pressure storage chamber; one end of the spring is propped against the gasket, and the other end of the spring is propped against the piston; the clamp spring is placed on the outer side of the gasket, and is in clamping fit with the valve body. The electromagnetic valve has the advantages that the structure is simple, and the stability is good; besides, the electromagnetic valve is integrated with the pressure storage structure, so that the defect of the lag of oil pressure adjustment is eliminated, and the adjustment is more sensitive.

The invention discloses a combined conveyor belt with an automatic identification system. The combined conveyor belt comprises a first conveying device, a second conveying device, a third conveying device and a control panel, wherein a pneumatic folding cover sealing machine and a corner type full-automatic box sealing machine are sequentially installed on the third conveying device from left to right, a box separating device is arranged on the third conveying device, a carton scanning device is arranged on the box separating device, a plurality of fourth conveying devices are arranged in thebox separating device, and a first conveying device, a second conveying device, a third conveying device, a pneumatic folding cover sealing machine, a corner type full-automatic box sealing machine and a paper box scanning device are electrically connected with the control panel. The combined conveyor belt is stable in structure, simple to operate, scientific and reasonable in design, and short inproduction period; and the combined conveyor belt is provided with the automatic identification system, so that intelligent scanning and distribution are carried out on materials, adjustment and mutual connection are facilitated, a large amount of time and energy of workers can be saved, and the combined conveyor belt is worthy of popularization.

The invention discloses an air inlet device for a variable-diameter carbonization tower. The air inlet device comprises a main air inlet pipe which extends into the carbonization tower, multiple branch air pipes evenly distributed in the axial direction of the main air inlet pipe in a layer shape and an air blowing device arranged at the bottom of the carbonization tower. Multiple spray nozzles are evenly distributed on the branch air pipes, and gas discharged into the carbonization tower from the spray nozzles spirally ascends under the effect of the air blowing device. According to the air inlet device for the carbonization tower, the distribution uniformity of gas discharged into the carbonization tower is improved, the gas discharged out from the spray nozzles does not directly impacta heat exchange water tank above the air inlet device, impact and wear of a tube bundle in the heat exchange water tank are reduced, and the service life of the device is prolonged.

The invention discloses a closed circulating heat supply device for lignite drying and upgrading and a heat supply method. A hot blast furnace is connected with a drying device to provide a heat source of the initial stage for the in-furnace combustion of the lignite; under the action of a main induced draft fan, hot smoke enters the drying device to realize the drying and dehydration of raw coal; the hot smoke and lignite pyrolytic gas guided out by the drying device are sent into a cyclone dust extractor; after cyclone dust extraction, a part of the lignite dust in the smoke subsides downwards to enter a stirring cage and then is sent to a closed pulverized coal conveying pipeline through a feeder; and under the action of an air blower, the lignite dust and the pyrolytic gas are evenly and dispersedly blown into the hot blast furnace for sufficient combustion through a nozzle through the conveying pipeline in a spiral manner. The closed circulating heat supply device is reasonable in design, safe, reliable and stable in running during large-scale application, and has the effects of realizing the recycle of the lignite dust and the pyrolytic gas, effectively overcoming the problem that the traditional smoke heat supply and upgrading process is high in energy consumption, high in pollution and the like and meeting the environmental requirements of saving energy and reducing emission.

The invention relates to a dumping bucket oblique angle door-lifting stable garbage compression equipment of the main engine, which has a frame, a lifting oil cylinder, a hopper cover, a dumping bucket and a container; the frame and the container are provided with a lifting oil cylinder; the hopper cover is fixedly installed on the top of the frame The tipping bucket is set corresponding to the position of the hopper cover, and the two sides of the tipping bucket are hinged on the frame; the connection between the container and the frame is detachable; the tipping bucket is turned over by a power mechanism fixed on the frame at one end; the power mechanism includes symmetrical hinges The oil cylinder on the frame; the piston rod of the oil cylinder is connected with a cross bar; the cross bar is hinged on the dumping bucket through at least two rings fixed on the cross bar; the outside of the dumping bucket is a slope; The included angle is 30-75°; there is a door-lifting device inside the lifting cylinder at the output port of the frame. The invention has the advantages of reliable turning action, high fault tolerance, high reliability of the system, and the turning is conveniently controlled through the power mechanism.

The invention relates to a door lock engagement and disengagement shifting fork device, wherein a front drive shifting block and a front shifting arm are arranged on the outer circumference of a frontshifting fork; a rear drive shifting block and a rear shifting arm are arranged on the outer circumference of a rear shifting fork; front and rear sides of a middle shifting fork are respectively provided with front and rear arc chutes; the front drive shifting block extends into the front arc chute, and the rear drive shifting block extends into the rear arc chute; the middle shifting fork is provided with a engagement and disengagement groove that disconnects the front arc chute from the rear arc chute; when a engagement and disengagement block enters the engagement and disengagement grooveand is blocked from the front drive shifting block and the rear drive shifting block, the front drive shifting block also has a sliding space between the front arc chute; and the rear drive shiftingblock also has a sliding space between the rear arc chute. When the rear shifting fork and the middle shifting fork are controlled to rotate and unlock by an indoor handle, the rear shifting fork andthe middle shifting fork can rotate relative to the front shifting fork to work; the indoor handle is prevented from being in linkage with the outdoor handle when the door is opened in the door, so that a user can unlock through the indoor handle of under the condition that the outdoor handle is blocked and cannot rotate; and product safety is thereby improved.

The invention discloses a nail gun. The nail gun solves the technical problem that in the prior art, the nailing quality of a nail gun is unstable. The nail gun comprises a shell and a driving mechanism. A nail feeding guide rail, a rushing sheet guide rail, a rushing sheet and an alignment piece are further arranged in the shell. A nail outlet gap which is used for holding a U nail is formed between the ends of the rushing sheet guide rail and the nail feeding guide rail, and the driving mechanism drives the rushing sheet to move downwards in the nail outlet gap so as to rush out the U nail. When nailing is conducted, the alignment piece is matched with the rushing sheet to align the U nail in the nail outlet gap to be attached to the rushing sheet guide rail, and therefore the U nail can be discharged in the mode of being attached to the rushing sheet guide rail.

The invention discloses a backflow-type detachable wear-resisting elbow comprising a housing, a top cover, a bolt and a gasket. The housing is a right-angle bent tube member, a notch is formed on the outer wall of the bent tube member for mounting the top cover in a sealing manner, and the housing and the top cover are connected to form a detachable structure through the bolt and the gasket. The housing and the top cover form an upward-convex-shaped spiral case, the top end of the spiral case is located on the upper wall of the neck of an outlet and are connected through an arc, and the tail end of the spiral case is connected with the outer wall of the neck of an inlet transitionally. The spiral-case-shaped inner wall allows a small part of inputted particle material to wriggle and backflow along the inner wall curve, the low-speed backflow particle material forms a barrier to protect the inner wall of the spiral case, and impact and wear on the inner wall of the spiral case by the inputted particle material are avoided. According to the structure, operating environment of the top cover can be improved greatly, so that the purpose of wear resistance is achieved; by the aid of the detachable structure, the top cover can be maintained or changed conveniently, so that maintenance cost is reduced.

The invention discloses a magnetic induction triggering structure. The structure comprises a base, a spring vertically arranged on the surface of the base, a shaft core arranged at the top end of thespring and used for moving in the vertical direction under the pressing effect, and a magnetic induction switch arranged on the surface of the base and used for triggering a preset output signal through the Hall effect when the shaft core is vertically pressed downwards to a preset distance. The invention provides a magnetic induction triggering structure. The Hall effect is utilized to trigger the key to output signals in the mode that the shaft core approaches the magnetic induction switch under the pressing effect. Key triggering control is achieved, the shaft core does not need to be in physical contact with the magnetic induction switch, so that the magnetic induction switch is prevented from being impacted and abraded, the service life can be prolonged, meanwhile, the shaft core andthe magnetic induction switch do not need to be in face-to-face friction abutting connection, the triggering delay and springback hysteresis phenomena can be reduced as much as possible, and the switch triggering sensitivity is improved. The invention also discloses a control key and a server, which have the above beneficial effects.

The invention provides a sanding device for a locomotive, which comprises a sanding main body, a plurality of sanding nozzles and a plurality of sanding nozzles, the air inlet cavity is arranged in the sanding main body and is respectively communicated with the sanding runner and the locomotive sand box, and a heater is arranged in the air inlet cavity; the first air inlet flow channel and the second air inlet flow channel are respectively communicated with the air inlet cavity; the sanding air cavity is communicated with the first air inlet flow channel, a sanding air nozzle is arranged in the sanding air cavity, and the spraying direction of the sanding air nozzle faces the sand outlet of the sanding flow channel; wherein in the first working state, the normal-pressure sanding air sourceenters the sanding air cavity and enters the sanding flow channel through the first air inlet flow channel to be stirred, and sand grains are blown out under the combined action of the sanding air nozzle, so that sanding operation is carried out; and in the second working state, the normal-pressure air source enters the air inlet cavity through the second air inlet flow channel and enters the locomotive sand box and the sanding flow channel after being heated by the heater, so that sand grains are kept loose and dry.

The present invention discloses discharge plate for automatic mill. The discharge dustpan plate includes dustpan plate body comprising casing of carbon steel and in the shape of dustpan, and protective antiwear layer of rubber material covering the inner surface of casing. The present invention has no wear of quartzite on the carbon steel casing, no iron dust contamination of product, high quality of ground quartzite and reduced dustpan plate weight.

The invention discloses a mobile platform. The mobile platform comprises a fixed platform body, a workbench, a forward moving cylinder and a reset positioning assembly; the fixed platform body is provided with a sliding rail, the forward moving cylinder is arranged on the fixed platform body, and the forward moving cylinder drives the workbench to slide back and forth along the slide rail; the reset positioning assembly is arranged on the rear side of the workbench to improve the stability of the operation; the reset positioning assembly includes a slide seat, and the position of the slide seat can be adjusted according to the reset position of the workbench; and the slide seat is provided with a matching boss and a buffer part to enable the process of resetting the workbench and matchingwith the sliding seat to be buffered to avoid impact abrasion, and the matching boss is matched with a positioning groove to fix the workbench to ensure the stability of processing on the workbench and improve the product precision.

The invention discloses an energy gathering disk. According to the energy gathering disk, the top of a through inserting groove with an opening formed in the bottom side is connected through connecting sections, the connecting sections are bulged inwards in the radial direction, and supporting surfaces are formed on the bottom surfaces of the connecting sections, so that the strength of a disk body is enhanced, traditional point contact pressing is replaced by surface contact pressing, the inner diameters of the tips of the inner sides of the connecting sections are reduced, all the connectingsections can be favorably pressed against cookware supporting feet, the mounting stability of the energy gathering disk is improved, the collision abrasion of the supporting feet can be prevented, the service life of the disk body can be prolonged, and the energy gathering disk can adapt to various models of grates.

The invention discloses a vacuum quantitative filling machine comprising a main case. A hopper is arranged on the main case; a locking handle is arranged between the main case and the hopper; a main motor connected with a pump body is arranged on the main case; a torsion motor is connected to the pump body; a storage box is arranged on the main case; a vacuum pump is arranged on one side of the storage box, and an air inlet is formed in the one side of the vacuum pump; an electrical box is arranged on the main case; the main case is further covered with a protecting body and a pedal plate; and a connecting piece is arranged in the connection position of the main motor and the pump body. Automatic quantitative portioning and automatic twisting can be achieved, and fat oxidization can be effectively prevented; by additionally arranging the protecting body on the main case, the operation sound of the device is effectively isolated; and the connecting piece is arranged in the connecting position of the main case and the pump body, so that the noise of machine impacting is effectively reduced, device damage and impacting abrasion which are caused by machine impacting are avoided, and operation of the vacuum pump is guaranteed to the maximum extent.

The invention belongs to the field of material conveying machinery, and provides a 'three-prevention' blanking pipe. The 'three-prevention' blanking pipe is mainly characterized in that a pipe body of the blanking pipe is a pentahedral pipe body and is provided with three vertical side plates, one inclined side plate and one inclined lower plate; a rotary blade is arranged above the inclined lower plate; and a dust collecting mouth is formed in the inclined side plate. Compared with the existing material articulated chute, the 'three-prevention' blanking pipe has the remarkable advantages of novel structure, ingenious design, capability of effectively solving three disadvantages of the material articulated chute, wear prevention, blockage prevention and raising dust prevention.