30results about How to "Contact surface stability" patented technology

The invention relates to a full face type pulling plate and clamping piece structure for a transformer iron core. The full face type pulling plate and clamping piece structure comprises an upper clamping piece, a lower clamping piece and a pulling plate, wherein cross sections of the upper clamping piece and the lower clamping piece have a groove shape; both ends of the pulling plate are providedwith chucks; the webs of the upper clamping piece and the lower clamping piece are provided with troughs of which the shapes are matched with those of the chucks; the chucks are clamped on the rear side of the troughs; and the pulling plate, the upper clamping piece and the lower clamping piece are stuck on the same plane of the iron core. In the full face type pulling plate and clamping piece structure, both ends of the pulling plate are provided with the chucks, both ends of the pulling plate are clamped in the troughs of the upper clamping piece and the lower clamping piece in an inlaying way, and the pulling plate, the upper clamping piece and the lower clamping piece are stuck on the same plane of the iron core, so that the contact surface of the clamping pieces and the iron core is more smooth, and a bundling effect on the iron core is relatively good, and the difficulty in processing an insulating material filled in the center of the iron core is reduced. The full face type pulling plate and clamping piece structure is easy to assemble and has high iron core assembly efficiency.

The invention relates to a full face type pulling plate and clamping piece structure for a transformer iron core. The full face type pulling plate and clamping piece structure comprises an upper clamping piece, a lower clamping piece and a pulling plate, wherein cross sections of the upper clamping piece and the lower clamping piece have a groove shape; both ends of the pulling plate are providedwith chucks; the webs of the upper clamping piece and the lower clamping piece are provided with troughs of which the shapes are matched with those of the chucks; the chucks are clamped on the rear side of the troughs; and the pulling plate, the upper clamping piece and the lower clamping piece are stuck on the same plane of the iron core. In the full face type pulling plate and clamping piece structure, both ends of the pulling plate are provided with the chucks, both ends of the pulling plate are clamped in the troughs of the upper clamping piece and the lower clamping piece in an inlaying way, and the pulling plate, the upper clamping piece and the lower clamping piece are stuck on the same plane of the iron core, so that the contact surface of the clamping pieces and the iron core is more smooth, and a bundling effect on the iron core is relatively good, and the difficulty in processing an insulating material filled in the center of the iron core is reduced. The full face type pulling plate and clamping piece structure is easy to assemble and has high iron core assembly efficiency.

The invention discloses a multi-protection safety drawer cabinet. The cabinet comprises a cabinet body, and a safety drawer and a common drawer are inserted into the cabinet body in a sliding manner;the safety drawer comprises a panel and a drawer box; and blocking strips are fixedly installed on the inner walls of the periphery of the drawer box. hidden grid plates are placed on the blocking strips; a plurality of magnetic conductive columns are equidistantly inserted into one ends, close to the panel, of the blocking strips; the lower ends of the multiple magnetic conductive columns are inserted in the bottom wall of the drawer box, magnetic strips are embedded in the bottom walls of the ends, close to the panel, of the hidden grid plates, two brackets are symmetrically installed on thebottom wall of the drawer box, magnetic plates are inserted in the two brackets in a sliding mode, and a plurality of lock grooves are formed in the ends, away from the panel, of the hidden grid plates. The magnetic strips on the hidden grid plates are attracted through the magnetic plates and the magnetic conductive columns, the concealment and safety are improved, the safety is further improvedthrough the lock rods, the hidden grid plates can be opened only when the safety drawer is closed through a top plate and an ejector rod, and the safety and concealment are further improved.

The invention discloses a novel coal mine drill bit and relates to the technical field of mining equipment. The novel coal mine drill bit comprises a drill bit body; the drill bit body is conical shaped, and the upper diameter of the conical shape is greater than the lower diameter of the conical shape; a plurality of drilling teeth are arranged on the outer side face of the drill bit body; and aplurality of water outlets are further formed in the drill bit body. The conical drill bit body enables the contact surface of the drill bit body and a top plate to be more stable; during the drillingprocess, the drill bit body closely fits the contact surface, so that the situation that graves fall off when a gap exists is avoided; and moreover, during the drilling process, as the drilling teethon the drill bit body rotate, the inner walls of the drilled holes are smooth to avoid blocking, and the gravels are prevented from blocking a drill pipe to prolong the service life of the drill bit.

A force measuring device is disclosed and comprises a guide sleeve, a testing shaft, an installation plate, a sensor, a sealing cover, a support rack and an elastic member, wherein the sensor is connected with the testing shaft via the installation plate, the testing shaft is mounted in the guide sleeve, a wheel shaft is mounted on the testing shaft, and a testing pressure head is fixedly mounted on the wheel shaft. Outer surfaces of the installation plate and the testing shaft are provided with guide rails. An adjusting rod is mounted on the sealing cover; a bearing is mounted on a part, contacting with the adjusting rod, of the sealing cover; the elastic member is mounted on the testing shaft, and one end is in contact with the testing shaft while the other end is in contact with the installation plate; sealing rings are mounted between the testing shaft and the guide sleeve and on an outer surface of the guide sleeve. The measuring device is simple in structure, easy in installation, high in measurement accuracy and great in reliability and practicality; the measuring device can be used for measuring force acting on a stationary or moving member.

The invention provides a lifting electromagnetic device for performing contactless electronic control lifting and transporting on vertical-type steel coils. The lifting electromagnetic device comprises a main body part and an electronic control part; the main body part consists of a yoke plate, a shell, through shaft movable magnetic poles, coils, concentrating flux plates, a support plate and a junction box body; the upper part of the yoke plate is provided with a plurality of square holes according to the sizes of spacing blocks on the through shaft movable magnetic poles; a through shaft mode is adopted for connection and installation of the through shaft movable magnetic poles; the plurality of through shaft movable magnetic poles are distributed in a 'plum blossom petal' structure and act as coil iron cores, and a layer of concentration flux plates are surrounded at the periphery of the coil iron cores so as to form trapezoidal frames; each trapezoidal frame corresponds to a coil; the coils are made of two-glass-fiber enamel-cover flat aluminium wire materials; after the coils wind around the concentration flux plates, insulation materials are arranged on the outer periphery in a paving manner, so that multiple problems of insufficient electromagnetic suction force, over-low safety coefficient and the like which are caused by adverse factors such as relatively high steel coiled tower shape, severe environment temperature, and over-high coil temperature rise are solved.

The invention relates to a plate clutch (B) for wet operation of a motor vehicle transmission (G), in which a piston (K) is arranged on a first side of the plate clutch (B), by means of which a force acting in the axial direction can be exerted on friction plates and outer friction plates (IL, AL) in order to close the plate clutch (B), wherein the plate clutch (B) is supported on the contact surface (AF) on a second side opposite the first side by means of an end friction plate (ALE) of the outer friction plate (AL), and wherein grooves (N) are provided on the contact surface (AF) and / or on the end friction plate (ALE), the grooves being designed and arranged such that a cooling fluid (O) supplied to the plate clutch (B) can flow out of the plate clutch (B) through the grooves (N); the invention further relates to a transmission (G) for a motor vehicle having such a plate clutch (B).

The invention relates to an automatic cleaning device of a measuring instrument. The device comprises a base and a measuring plate, a first support column and a second support column are fixedly connected to the bottom of the measuring plate, a first air bag is arranged between the first support column and the second support column which are sleeved with support springs, and the support springs are located between the base and the measuring plate; a stand column is fixedly connected to the side of the measuring plate, a first support platform and a second support platform are fixedly connectedto the two sides of the stand column respectively, a second air bag is fixedly connected to the first support platform, a gas-guide tube is communicated between the second air bag and the first air bag, the second support platform is provided with a disinfection tank and a liquid storage tank, a piston is slidably connected into the disinfection box, the piston divides the interior of the liquidstorage tank into a liquid chamber and a gas chamber, a piston rod is fixedly connected to the piston, the free end of the piston rod is movably connected to the second air bag, a sprinkler pipe is arranged at the bottom of the liquid chamber, a gas ejector pipe is communicated with the bottom of the gas chamber, and a U-shaped pipe is communicated between the liquid chamber and the liquid storagetank. By means of the device, the measuring instrument can be cleaned.

The invention discloses a right-angle pipe fitting mold with an efficient molding and demolding function, and relates to the technical field of pipe fitting mold machining devices. In the right-anglepipe fitting mold, an output connecting rod mechanism of a transverse power cylinder is connected with a transverse connecting pipe / intra-pipe mold core in a matched manner; a transverse adjustment rack plate is movably installed on a first bottom-side clamping base; a first matching gear matched with the transverse adjustment rack plate is movably installed on the first bottom-side clamping base;a second upper-side driving gear matched with the transverse adjustment rack plate is movably installed on the first bottom-side clamping base; a movable mold clamping base is installed in an upper-side movable mold set periphery body; a pair of injection molding movable molds are installed in the movable mold clamping base; the middle parts of movable mold cavities of the injection molding movable molds are provided with middle injection holes communicating with an injection molding channel; and one injection molding movable mold is independently provided with an end opening replacement moldin a matched manner. The right-angle pipe fitting mold can efficiently complete the operation of machining multiple right-angle pipe fittings, quickly complete the operation of demolding the molded pipe fittings and make contact surfaces on two sides firmer.

The invention discloses a silencer heat radiating device with fins. The silencer heat radiating device with fins comprises a silencer barrel body, wherein the silencer barrel body is a casing of a resistive silencer in the prior art, a sound-absorbent material of a silencer is arranged at the inner wall position close to the side wall of the silencer barrel body, the side wall of the silencer barrel body is provided with at least one cooling fin chute, and the cooling fin chute is composed of a first groove cavity and a second groove cavity. The silencer heat radiating device with fins further comprises cooling fins identical to the cooling fin chutes in number and a circular-ring-shaped cooling fin end cover matched with the side wall of the silencer barrel body. The cooling fins are installed in the side wall of the silencer through the chutes, enough stable contact between the cooling fins and the side wall of the silencer is ensured through the chutes, the fins of the cooling fins extend out of the chutes, the whole heat radiating area is increased, accordingly heat absorbed by the resistive sound-absorbent material arranged on the inner wall of the silencer during running is led out, and the temperature stabilizing and sound absorption effects of the resistive material are reduced.

The invention relates to the field of tests, and discloses a cultivation component performance test bench for degraded grassland improvement, which comprises a cultivation component, a data acquisition device arranged on the cultivation component, a clamping piece for fixing the cultivation component and a frame fixedly connected with the clamping piece, and hollow shells are rotatably mounted on two sides of the frame. A rotating assembly is rotatably mounted in the shell, a moving assembly in transmission connection with the rotating assembly is slidably mounted in the shell, a control assembly is fixedly mounted in the frame and comprises a long rod, and an adjusting assembly in transmission connection with the rotating assembly is rotatably mounted on the upper surface of the long rod. Through cooperation of the control assembly, the moving assembly, the rotating assembly, the adjusting assembly and the like, when plane soil and inclined plane soil are tested, the cultivation component can be adjusted to be in a vertical state to complete the test, so that the contact surface of the cultivation component and the soil is stable, and the testing accuracy of the cultivation component can be effectively guaranteed.

A novel pedal comprises a working rod, a pedal body 2, a connecting lug 3, a fixing shaft 4, a washer 5, a split pin 6, an adjusting screw 7 and a spring 8. A stopper 11 is arranged below the lower end of the working rod 1, a screw through hole is formed in the stopper 11, and the adjusting screw 7 penetrates the spring 8 to be screwed in the screw through hole in the stopper 11. The novel pedal has the advantages that the stopper is arranged below the working rod, and the adjusting screw is arranged on the stopper, so that an operator can adjust angle of the pedal in the stationary state according to requirements, an angle between the pedal and the working rod can be adjusted automatically, stability of a contact surface between the sole and the pedal is maintained, and requirements on experience and ability of the operator are lowered.

The invention provides a lifting electromagnetic device for performing contactless electronic control lifting and transporting on vertical-type steel coils. The lifting electromagnetic device comprises a main body part and an electronic control part; the main body part consists of a yoke plate, a shell, through shaft movable magnetic poles, coils, concentrating flux plates, a support plate and a junction box body; the upper part of the yoke plate is provided with a plurality of square holes according to the sizes of spacing blocks on the through shaft movable magnetic poles; a through shaft mode is adopted for connection and installation of the through shaft movable magnetic poles; the plurality of through shaft movable magnetic poles are distributed in a 'plum blossom petal' structure and act as coil iron cores, and a layer of concentration flux plates are surrounded at the periphery of the coil iron cores so as to form trapezoidal frames; each trapezoidal frame corresponds to a coil; the coils are made of two-glass-fiber enamel-cover flat aluminium wire materials; after the coils wind around the concentration flux plates, insulation materials are arranged on the outer periphery in a paving manner, so that multiple problems of insufficient electromagnetic suction force, over-low safety coefficient and the like which are caused by adverse factors such as relatively high steel coiled tower shape, severe environment temperature, and over-high coil temperature rise are solved.

The invention discloses a multi-protection safety drawer cabinet, which comprises a cabinet body, on which a safety drawer and an ordinary drawer are slidingly inserted, the safety drawer includes a panel and a drawer box, and the drawer box is fixed on the inner wall around A retaining bar is installed, and a hidden grid plate is placed on the retaining bar. A plurality of magnetic conducting columns are inserted equidistantly at one end of the retaining bar near the panel, and the lower ends of the plurality of magnetic conducting columns are inserted in the bottom of the drawer box. On the wall, a magnetic strip is embedded on the bottom wall of the hidden grid close to the panel, and two brackets are symmetrically installed on the bottom wall of the drawer box, and a magnetic plate is slidably inserted on the two brackets. , the end of the hidden shelf away from the panel is provided with a plurality of lock slots. The present invention absorbs the magnetic strips on the concealed shelf through the magnetic plate and the magnetic guide column to increase the concealment and safety, and further increases the safety through the lock bar, and the concealed shelf can only be opened by closing the safety drawer through the top plate and the ejector rod, further Increased security and concealment.

A force measuring device, including a guide sleeve, a test shaft, a mounting plate, a sensor, a cover, a bracket, and an elastic member. The sensor is connected to the test shaft through the mounting plate; the test shaft is installed in the guide sleeve, and a wheel shaft is installed on the test shaft. The test head is fixedly mounted on the axle. Guide rails are respectively installed on the outer surfaces of the mounting plate and the test shaft. An adjustment rod is mounted on the cover. Bearings are installed on the part where the cover is in contact with the adjusting rod. The elastic member is installed on the test shaft, one end is in contact with the test shaft, and the other end is in contact with the mounting plate. A sealing ring is installed between the test shaft and the guide sleeve and on the outer surface of the guide sleeve. The test device is simple in structure, easy to install, high in measurement accuracy, reliable and practical, and can realize the measurement of the force acting on a static or moving component.

The invention relates to a measurement device for fresh mortar non-lateral-confinement bearing capacity. The measurement device comprises a frame body, a loading device and a vertical displacement measurement device which are arranged from bottom to top respectively, wherein the frame body comprises a base, as well as a screw rod and a plurality of nuts for mounting the loading device and the vertical displacement measurement device, the loading device comprises a loading barrel, a loading plate is arranged on the bottom surface of the loading barrel, a loading barrel upper cover is arranged at the top of the loading barrel, a test sample is arranged between the loading plate and the base, and the vertical displacement measurement device comprises a screw rod fixing cross beam, a dial gauge mounting beam and a dial gauge. The device can be used for utilizing the dead load of liquid to load, and can load continuously and eliminate load unevenness, and the measurement device is simple in structure and convenient in use, and can easily measure the bearing capacity and displacement change of fresh mortar in a corresponding loading direction.

Specifically, the present invention is a method for assembling steel components with its own support and positioning functions; its feature is: when cutting grooves or welding gaps for the parts of the steel components to be assembled, at the two ends of the parts to be assembled and at a distance of 2 A non-cut flange of not less than 8mm is left at the position of ~3m; when the components are assembled, the non-cut flange forms an effective smooth contact surface, and further, the non-cut flanges at both ends of the component parts The positioning line formed on the side also assists in the installation and positioning of assembly parts. In this way, the stability of the assembly of curved steel components is further increased; the assembly of components is completed, and the process does not need to repeatedly adjust the position with additional abutment and wedges. The method utilizes the reserved flanges of the parts for assembly, so that the installation position of the parts can be precisely controlled, the fixing measures can be reduced, the process can be simplified, and the assembly time can be shortened; at the same time, the welding gap between the part plates can be effectively controlled.