21 results about "Spherical recess" patented technology

This invention discloses a multi-station tooling, belonging to the field of machining tooling and fixture technology. The tooling includes a base, a single cylinder, a movable arm, multiple clamping modules, spherical washers, and limiting components. The single cylinder drives the movable arm to perform overall linear translation. The movable arm has multiple spherical grooves, and each pull core forms a spherical adaptive fit pair with the spherical grooves through the spherical washers. The clamping modules are configured as interchangeable inner support modules or outer clamping modules, allowing switching of working modes on the same base by changing the pull cores and elastic chucks. The spherical adaptive fit pair between the spherical washers and spherical grooves automatically compensates for axial eccentricity and angular errors caused by the interchangeability of the inner support modules and outer clamping modules and assembly deviations. This invention achieves unified high-precision synchronous clamping at multiple stations with a single cylinder and rapid switching between inner support / outer clamping, significantly improving clamping force consistency, machining yield, and changeover efficiency.

The present invention relates to a brake actuation device (2) for a motor vehicle, comprising a brake booster (1) having a movable actuating rod (3), and an input rod (5) which is connectable to or connected to a brake pedal (6) and coupled to the actuating rod (3) by a ball joint (9) so that the input rod (5) is pivotable relative to the actuating rod (3), wherein the ball joint (9) has a spherical socket (10) and a spherical projection (11) mounted in the spherical socket (10). It is provided that at least one radial recess (17) is formed in the spherical socket (10) in which a radial projection (16) of the spherical projection (11) with a predetermined clearance for limiting the pivoting range of the ball joint (9) is located.

This invention relates to a ball-operated plugging device for downhole pulsating hydraulic fracturing, comprising a main body assembly. A conical valve seat is disposed in the middle of the main body assembly, and an umbrella-shaped valve is slidably connected within the conical valve seat. The umbrella-shaped valve includes a valve head boss and a valve stem. A self-excited oscillation chamber is also provided at the bottom of the conical valve seat. A spring support seat is disposed below the self-excited oscillation chamber, with a central circular hole at the geometric center of the spring support seat. A spring is placed on the spring support seat, and the top of the spring contacts the valve head boss of the umbrella-shaped valve. A through-hole flow channel is provided in the middle of the umbrella-shaped valve, with its upper and lower ends communicating with cavity A and cavity B, respectively. The valve stem of the umbrella-shaped valve passes through the spring, and its bottom is inserted into the central circular hole of the spring support seat. A spherical groove is provided at the top of the umbrella-shaped valve for placing a soluble plugging ball. This invention can adjust the pressure variation of the pulsating fluid at the bottom of the well during construction.

The application discloses a rotary drilling rig earth digging structure with a telescopic function, relates to the technical field of rotary drilling rigs, and comprises a rotary drilling rig main machine, a drill rod assembly, a quick-change interface assembly, a switchable drilling rig assembly and a grabbing execution mechanism. The quick-change interface assembly comprises a connecting seat, a multi-stage telescopic arm, a frame body and a spring structure. The connecting seat is internally provided with a connecting port and a bolt hole, and is used for quickly disassembling and assembling the drilling rig assembly or the grabbing execution mechanism. The drilling rig assembly comprises a motor, a drill rod, a side groove, a spherical groove, a supporting block, a telescopic structure, a first driving piece and a side drilling block. The bottom of the drill rod is provided with an opening and a hollow supporting rod, thereby forming a bidirectional earth discharging structure. The structure is used for completing shallow and middle layer drilling and digging through the drilling rig assembly, completing deep layer soil body grabbing through the grabbing execution mechanism, and supplementing the working depth through the multi-stage telescopic arm, so that the problems of poor deep and shallow universal capability of a single drill, poor earth discharging, easy hole collapse in deep layers, difficult slag cleaning and slow terminal switching of a traditional drilling rig are solved.

The utility model discloses a kind of reinforcing support frames for gear shaft machining, it is related to gear shaft technical field, the position of support frame is adjusted according to the movement of cutting tool in real time cannot be proposed to the problems of background technology, the travel of cutting tool is influenced by support frame, it is not conducive to gear shaft one-time processing, low practicality, present and propose following scheme, including base, the base top outer wall is equipped with two sliding modules, the sliding module includes slide rail and sliding block, and sliding block is slidably installed on the outer wall of slide rail, the base upper is equipped with mounting plate, and the mounting plate bottom is equipped with support mechanism, the support mechanism includes the mounting cylinder that semispherical recess is opened on the bottom outer wall, and support ball is slidably installed in recess.The utility model can adjust the position of mounting ring according to the movement of cutting tool in real time, prevent the travel of cutting tool from being influenced by mounting ring, it is conducive to gear shaft one-time processing, and practicality is improved.

The utility model provides a kind of miniature hydroelectric generator with stabilizing support, comprising: a shell;A water passing base;A drive unit, rotationally arranged in the shell, and comprising a rotating shaft and the impeller of driving the rotating shaft rotation, impeller is connected in the one end of rotating shaft;A power generation unit, including a magnetic ring and a coil assembly, magnetic ring is fixed in rotating shaft outside and is synchronously rotated with rotating shaft, and coil assembly is fixed in shell;Shell is screwed on water passing base, water passing base bottom is equipped with support, support is equipped with hemispherical recess, ceramic ball is equipped in recess, impeller bottom is also equipped with recess, ceramic ball is equipped in recess, can ensure that generator long time in different water temperature water pressure environment Normal operation, not loose, increase the service life of generator.

The utility model discloses a floating cutter head shaver, including fuselage and the cutter head of being located at the top of fuselage, there is power assembly in the fuselage output rotary driving force, and the cutter head includes shell head, inner blade and knife net, and the inner blade is driven to rotate shaving by power assembly, and can float up and down, the buckle connection of shell head is connected in the knife net frame, and the knife net frame has spherical recess, and the knife net includes spherical base body and net face part, and the spherical base body is suitable for the configuration in the spherical recess, and can universal deflection, and the floating support is installed on the knife net frame, and the floating support has annular base body and a plurality of elastic sheets, and the annular base body is opened long slot hole at the corresponding elastic sheet, and one end of elastic sheet is connected long slot hole hole wall, and the other end is inclined to the upper abutment spherical base body stop ring, and through the deformation of elastic sheet, the displacement of knife net deflection is adapted and resets, and the shell head cover is outside the knife net, and has the cutter lip that exposes net face part, and restricts the knife net to the spherical recess and separates upward. The shaver is through the up and down floating of inner blade, and the knife net universal deflection adapts the facial profile curved surface, and the knife net is more close to the skin when shaving, and the shaven cleanliness is improved.

The application relates to a quick clamping tool for processing the inner curved surface of a spherical head, which comprises a pedestal, the top surface of the pedestal is provided with a semispherical groove for accommodating the spherical head, and the top surface of the pedestal is also provided with an annular part which is flush with the groove opening of the semispherical groove, a plurality of vertical locking assemblies are arranged on the annular part at equal intervals in the circumferential direction and are used for vertically supporting and fixing the spherical head; a plurality of elastic leveling assemblies are arranged at the groove bottom of the semispherical groove; and a plurality of inclined support assemblies are arranged at the groove wall of the semispherical groove at equal intervals in the circumferential direction and are used for obliquely supporting and fixing the spherical head. After the spherical head is placed in the semispherical groove, the bottom of the spherical head is ensured to be in good contact through the elastic leveling assemblies; the vertical locking assemblies are adjusted to lock the spherical head, so that the spherical head cannot deviate during the processing. The inclined support assemblies provide additional support and better stability during the processing. The problems that the spherical head is inconvenient to clamp and fix and the product is prone to shaking during the processing to reduce the quality of the product are solved.

This invention proposes a swaying vibration-damping tower with a spherical support and its usage method. The tower includes a tower body and a base. The bottom of the tower body is connected to the base, and a hemispherical support is connected to the bottom of the tower body. A hemispherical groove is provided at the center of the top of the base, and the hemispherical support is installed within the hemispherical groove. The tower body and the foundation are connected by a vibration-damping device. This invention installs a viscoelastic damper at the bottom of the tower as a support and energy-absorbing component, which can resist dynamic loads, improve structural safety, and extend service life.

The utility model relates to rear -view mirror recording appearance technical field provides two wheel and three wheel motor vehicle rear -view mirror recording appearance, including two support columns, rear -view mirror recording appearance body and rear -view mirror body, in the embodiment, use, first support column upper end with two wheel or three wheel motor vehicle handle bracket or car body installation position fixed, make rear -view mirror recording appearance body and rear -view mirror body through support column stable assembly on the vehicle. When needing to adjust rear -view mirror field of vision or recording appearance shooting angle, manually push two bodies, the adjusting ball embedded in the connecting sleeve inside will follow the action and rotate in the spherical recess of connecting sleeve inner wall, until the angle that is adjusted to the rear road condition of convenient observation, clear shooting front or side road condition, adjust the locking piece on the surface of rear -view mirror recording appearance body, limit the fixing of adjusting ball, avoid the independent rotation caused by vehicle vibration, keep the angle stable.

The utility model discloses a water outlet device and sink, water outlet device includes the casing and at least one water outlet head, and the casing is formed with overflow inlet, overflow outlet, at least one water inlet and at least one water passing cavity, and overflow inlet communicates with overflow outlet, and water inlet, water passing cavity and water outlet head one-to-one intercommunication, and the front end of water passing cavity is formed with spherical recess, and the outer wall of the water inlet end of water outlet head is equipped with the spherical convex surface of being suitable for spherical recess, and spherical convex surface rotatably inserts in spherical recess, and the water outlet end of water outlet head protrudes from the front end surface of casing, and overflow inlet is located below water outlet head. The utility model discloses the overflow inlet of water outlet device is located below water outlet head, and water outlet head will protrude from casing front end surface a little, under the use visual angle of user, water outlet head will shield overflow inlet, and user cannot look directly at overflow inlet, and make the inside appearance of sink more simple, beautiful.

This utility model relates to the field of electronic accessories and discloses a multi-angle adjustable wall-mounted monitor bracket, including a wall-mounted base. A fixed section is fixedly connected to the top of the wall-mounted base, and a spherical groove is provided in the middle of the wall-mounted base. A hinge-shaped rotating component is rotatably connected to the wall-mounted base. Shock-absorbing components are provided at both ends of the hinge-shaped rotating component. The shock-absorbing components include shock-absorbing blocks. A positioning post is fixedly connected to the bottom of the shock-absorbing block. A spring is sleeved on the positioning post. A fixed plate is fixedly connected to the bottom of the spring. A cable tray is fixedly connected to one side of the bottom of the wall-mounted base. In this utility model, the base can be rotated in multiple directions by the hinge-shaped rotating component. The shock-absorbing blocks fixedly connected to both ends of the hinge-shaped rotating component drive the spring to work in conjunction with the hinge-shaped rotating component and the base to achieve multi-directional rotation adjustment and shock absorption, which can prevent the monitor from shaking back and forth due to vibration.

The utility model provides a kind of cement kiln accurate coal injection device, including mutual nesting and by inside to outside for first pipe, second pipe, third pipe and fourth pipe, the side wall of the first pipe is provided with several spiral strips, the front end gap of the first pipe and second pipe is material outlet, the inboard of the first pipe is provided with first spiral blade, the second spiral blade is provided between the second pipe and third pipe, the side wall of the fourth pipe is provided with spherical surface, the outside of the fourth pipe is provided with two fixed plates of sleeve joint, and the middle part of fixed plate is provided with spherical recess, and spherical surface is slidably fitted in spherical recess. The utility model can adjust the conveying direction of pulverized coal, and each gas port is independently controlled, to realize the operation of accurate coal injection.

The present application relates to the field of textile machinery and damping control, specifically to a warp knitting machine high-stability bearing seat and a method thereof; comprising a bearing main frame, a damping energy dissipation core, a leveling support foot, a spherical self-adaptive pad, a monitoring part and a controller; the system obtains top and bottom end vibration data in real time through a sensor, calculates vibration transmission rate and attenuation rate and then solves dynamic stiffness, thereby evaluating damping aging state and calculating resonance critical speed; the core is to densely fill the damping energy dissipation core in the main frame to dissipate periodic excitation energy generated by high-speed operation, and to use spherical contact matching of the hemispherical protrusion at the bottom of the support foot and the hemispherical groove of the spherical self-adaptive pad, so that the support foot can be freely deflected to adaptively compensate uneven ground; the present application solves the problems of insufficient existing foundation stiffness and obvious high-frequency vibration transmission, effectively avoids long-term stress concentration and loose connection of the rack, and greatly improves the support stability.

The utility model discloses a kind of structures of quickly adjusting multiple launch light source collimation, including three light components, three light components are connected with shell body by three light shell, the front end outside of three light shell is hemispherical structure, corresponding shell body is provided with hemispherical groove corresponding to hemispherical structure inside, hemispherical structure is symmetrically distributed with spherical recess up and down, limit ball is placed in spherical recess, while hemispherical groove is opened with spherical recess matched with limit ball, so that limit ball carries out axial and radial limit to hemispherical structure, so that hemispherical structure cannot move back and forth also cannot occur autorotation, but can occur slight swing, spring is abutted with below and one side of three light shell, limit slot for placing spring is provided in shell body, another two sides of three light shell tail end are respectively abutted with fine adjustment component fine adjustment top column, fine adjustment top column can be telescopic, fine adjustment component is fixed on shell body.

This paper proposes a purging needle for casting with a built-in cleaning air passage function. The purging needle includes a needle tip, a needle body, and an air pipe connector. The needle body is a hollow cylinder and includes a needle rod, air holes, a connecting end, and an air guide cavity. The air guide cavity is connected to both ends of the needle body, and an air pipe connector is connected to the outer side of one end of the needle body. The other end of the needle body is connected to the needle tip through a threaded seal. Several air holes are arranged in an array on the surface of the needle body. The air holes are interconnected with the air guide cavity inside the needle body. The needle tip includes a pointed tip, a spherical recess, and a mounting screw. Several spherical recesses are arranged in an array on the outer surface of the needle tip. The end of the needle tip is sealed to the end of the needle body through a protruding mounting screw. The purging channel enters the exhaust channel for deep purging and cleaning during the purging process. The purging process and the purging process of the purging needle to purge the exhaust channel are carried out simultaneously, eliminating the need to wait until all the air holes are purged before purging, thus improving efficiency.

This invention proposes a universal joint, belonging to the technical field of connection devices, comprising a water cap assembly and a mandrel installed inside the water cap assembly; the water cap assembly includes a hinged water cap, one end of which is provided with a sealing cavity, the bottom of which is provided with a hemispherical groove, and the sidewall of the sealing cavity is provided with several strip grooves, which communicate with the hemispherical groove; a sealing spherical surface is installed in the hemispherical groove; the side of the mandrel is provided with several torsion transmission planes arranged in a circumferential array, which are connected to the sealing spherical surface; the surface of the torsion transmission plane is provided with a mounting hole, in which a mushroom-shaped pin is rotatably installed, and the outer surface of the mushroom-shaped pin is in contact with the surface of a sliding bushing slidably installed in the strip groove. The contact between the outer surface of the mushroom-shaped pin and the surface of the sliding bushing, and the engagement between the hemispherical groove and the sealing spherical surface, achieves surface contact, increases the force-bearing area, reduces wear, and extends the service life of the device.

Some of embodiments of the present application provides a floating center device and a use method. The device is mounted on a lathe tailstock, and comprises a center body, a center head, and a ball-ended rod. The center body serves as a mounting base and is connected to the center head. An end chamfer of the center head is in line contact with a spherical surface of a product to be processed. The ball-ended rod is internally arranged in the center body and can adapt to different directions, so that the gap between the ball-ended rod and the center head is controlled to fluctuate within the range of ≤1°. The center body is fittingly mounted on the lathe tailstock, and a rotary Morse tailstock may be selected. The center body is designed with a conical section and a cylindrical section. The cylindrical section is provided with a spherical recess to mount the ball-ended rod. A pressing plate assists in fixing the ball-ended rod so that the ball-ended rod moves to a small extent. The contact surface is filled with lubricating liquid.

This invention discloses a rotary drilling rig excavation structure with telescopic function, relating to the field of rotary drilling rig technology. It includes a rotary drilling rig main unit, a drill rod assembly, a quick-change interface assembly, and switchable drilling rig components and a gripping actuator. The quick-change interface assembly includes a connecting seat, a multi-stage telescopic arm, a frame, and a spring structure. The connecting seat has a connecting port and bolt holes for quick assembly and disassembly of the drilling rig component or the gripping actuator. The drilling rig component includes a motor, a drill rod, a side groove, a spherical groove, a support block, a telescopic structure, a first drive component, and a side drill block. The bottom of the drill rod has an opening and a hollowed-out support rod, forming a bidirectional soil discharge structure. This structure completes shallow and medium-depth drilling through the drilling rig component, and deep soil gripping through the gripping actuator. The multi-stage telescopic arm supplements the working depth, solving the problems of traditional drilling rigs such as poor versatility for shallow and deep drilling with a single drill bit, poor soil discharge, easy collapse of deep holes, difficulty in cleaning slag, and slow terminal switching.

The present application relates to a kind of anti-climbing energy-absorbing device and vehicle, which includes mounting seat, energy-absorbing pipe and shrink ring. Wherein, mounting seat is provided with mounting hole; one end of energy-absorbing pipe is inserted into mounting hole, and gap cooperation between energy-absorbing pipe and inner wall of mounting hole; shrink ring has hemispherical outer surface; hemispherical recess is provided in mounting hole; shrink ring is sleeved on energy-absorbing pipe and embedded in hemispherical recess, and is fixedly connected with mounting seat by shear pin. The present application cooperates with the spherical surface between shrink ring and mounting seat, when anti-climbing energy-absorbing device bears eccentric load, makes shrink ring and mounting seat adaptively rotate to eliminate eccentric load, and ensures the stability of energy-absorbing pipe deformation force value.