47results about How to "Eliminate connection gaps" patented technology

The invention relates to a fixing structure for an automotive headlamp xenon bulb. The bulb is mounted on a lamp shell of a lamp holder. A bulb fixing seat comprises two semicircular seat bodies. Each seat body is provided with a boss and a limiting post. A vertical groove in the inner side of the protruding arc wall and a peripheral clamping groove in the peripheral wall of each seat body communicate with each other. Two spring pieces are connected to the bosses on the corresponding seat bodies through at least one corresponding assembling hole in a pressing manner. Bottom plates of the two seat bodies are inserted into the neck of the lamp shell and connected in a bucked manner. An upper convex point on the inner side of each spring piece abuts against the bottom face of a lamp holder limiting disc. Elastic pins penetrate gaps in the bottom plates of the seat bodies and abut against the lamp shell of the lamp holder. At least two protruding blocks on the periphery of each base for a reflector penetrate the corresponding vertical grooves and are rotated to the peripheral clamping groove. Reflectors are clamped to the corresponding seat bodies. The bases of the reflectors are pressed on the upper convex points of the outer sides of the corresponding spring pieces. The fixing structure has the beneficial effects of being simple in structure, capable of fixing the reflectors and the lamp holder without loosening and capable of effectively solving the problems of light scattering and poor concentrating caused by waggling of the lamp bulb of an automotive lamp.

The invention provides a tool and method for eliminating connection gaps of high-pressure turbine rotor blades. The tool comprises an adjusting screw rod, an upper driving block, a squeezing block and a lower driving block. The squeezing block and the lower driving block are sequentially arranged on the adjusting screw rod in a penetration mode. When the adjusting screw rod is screwed, the upper driving block drives the adjusting screw rod to rotate to squeeze the squeezing block downward. The lower driving block drives the adjusting screw rod to rotate to squeeze the squeezing block upwards, so that the squeezing block protrudes outwards. In the method, the tool for eliminating the connection gaps of the high-pressure turbine rotor blades is adopted. By means of the tool and method for eliminating the connection gaps of the high-pressure turbine rotor blades, the connection gaps between the high-pressure turbine rotor blades and a turbine disk can be effectively eliminated, so that the diameter of high-pressure turbine blade tips is accurately obtained. The tool is simple in principle, simple in structure and low in manufacturing cost and maintenance cost.

The invention discloses a universal rolling mill and a rolling mill vertical roll device with adjustable vertical roll rotation axis angles. The rolling mill vertical roll device with the adjustable vertical roll rotation axis angles comprises a vertical roll, an internal case with a first internal surface and a first external surface, an external case with a second internal surface and a second external surface, a hydraulic cylinder with a cylinder bottom and a piston rod and a pair of half shafts; the universal rolling mill comprises two horizontal rollers and two rolling mill vertical roll devices; the rolling mill vertical roll devices are the above rolling mill vertical roll devices with the adjustable vertical roll rotation axis angles. According to the technical scheme of the universal rolling mill and the rolling mill vertical roll device with the adjustable vertical roll rotation axis angles, inclined rotation axis angles of the vertical roll is rapidly and effectively corrected, the efficiency is high, and the cost is low.

The invention relates to a telescopic steel bar connecting external member. An external member body comprises a bidirectional thread sleeve, a forward spinning screw rod seat, a reverse spinning screw rod seat, screw connectors, one-way thread sleeves and pin shafts. An internal thread at one end of the bidirectional thread sleeve is consistent with internal threads of the one-way thread sleeves, and the forward spinning screw rod seat, the screw connectors and external threads headed and turned by steel bar heads are consistent. All the components in the external member can be organically combined, for example, the components are increased or reduced, two steel bar heads with different intervals are in butt joint, and the external member for connection of the steel bar heads on a construction site is provided. The telescopic steel bar connecting external member has the advantages that the combining mode is flexible, according to the needs for steel bar intervals, short-distance connection can be achieved by reducing the components, the needs for long-distance connection can be met by adding the components connected in series, and connecting clearances are tightened and eliminated through the bidirectional thread sleeve; connection is reliable, no deformation exists, the requirement for stress design can be met, the telescopic steel bar connecting external member meets the connection needs of two staggered steel bar heads with different included angles, and connection construction of the steel bars is greatly facilitated.

The invention relates to an in-and-out flange connecting device and making method in the hub bearing, which comprises the following parts: inner flange (1), outer flange with double channels (2), wherein the touching position of in-and-out flange contains an inner circlet (21); the shaft (11) of inner flange (1) connects the inner circlet (21) through epigene action. The device affirms the fixing connection of in-and-out flange without gap, which is convenient to manufacture without circlip.

The invention relates to a drive plate coupling. The coupling is connected with a first shaft and a second shaft and comprises a left half coupling body, a right half coupling body, a spring ring and a cross joint, wherein after the first shaft is installed in the left half coupling body and fixed, one end of the cross joint is inserted in a groove of the left half coupling body and provided with the spring ring, then, the second shaft is installed in the right half coupling body and fixed, and finally, the other end of the cross joint is inserted in a groove of the right half coupling body. Compared with the prior art, the drive plate coupling has the advantages of being simple in structure, low in cost, convenient to disassemble and assemble, high in reliability and the like.

The invention discloses an extractor hood which comprises a fume collecting hood. An air inlet is formed in the fume collecting hood. A fume collecting cavity concaved upwards is formed in the fume collecting hood. The commutated plate is arranged at the position, located below the air inlet, in the fume collecting cavity. The front portion of the commutated plate is clamped with the fume collecting hood through a clamped connection structure. The rear portion of the commutated plate is hinged to the fume collecting hood. The clamped connection structure comprises clamping claws arranged on the two sides of the front portion of the upper surface of the commutated plate. The extractor hood is characterized in that the clamped connection structure further comprises buckles, and the buckles can be in clamped connection with the clamping claws, apply suction force and can apply repellent force to the clamping claws to be separated from each other. The invention further discloses a controlmethod of the extractor hood.

The invention discloses a machining device capable of accurately adjusting a gap. The machining device comprises a fine adjustment mechanism, a movable seat, a connecting seat, an adjusting head, a sliding groove, a driving gear, a driven gear, a screw device and a first threaded hole. The device is reasonable and simple in structure, low in production cost and convenient to install, the adjusting head drives the driving gear to rotate, the driving gear rotates to drive the whole screw device to rotate through the driven gear, and the screw device rotates to enable the movable seat and the fine adjustment mechanism to drive the driving arm to move. Therefore, rapid coarse adjustment of the fit clearance between the bottom of the driving arm and the cam is achieved, and the adjustment efficiency is improved. According to the fine adjustment mechanism, the distance of the inclined surface block can be finely adjusted through a differential thread mechanism composed of an adjusting sleeve body, a stud and the like, meanwhile, an inclined surface moving mechanism composed of the inclined surface block and an inner inclined surface groove is further matched, so that the fine adjustment precision is improved, and the driving arm can be driven to be finely adjusted through the connecting block.

The invention discloses a mounting structure of a large-size cross beam on integrated steel. According to the mounting structure, a reinforcement cage tenon is arranged at the end of the large-size cross beam, a limiting edge protrudes out of the reinforcement cage tenon, a supporting connector is arranged on the integrated steel, mounting seams are formed in the supporting connector, when the reinforcement cage tenon and the supporting connector are assembled, the limiting edge is embedded into the upper mounting seam and the lower mounting seam at the same time, a first brake iron and a second brake iron are inserted into gaps of the corresponding mounting seams, the reinforcement cage tenon is supported by a bottom plate, a tension bolt penetrates through the bottom plate and is in threaded connection with the second brake iron, a cover plate for limiting the upper portion of the first brake iron is arranged on the first brake iron, a fastening bolt penetrates through the cover plate and is in threaded connection with the second brake iron, and the fastening bolt is in threaded connection with the upper end of the reinforcement cage tenon. According to the mounting structure, reliable fixation of the tenon is fully guaranteed, the connection gap is eliminated, the pre-tightening force is improved, the connection strength is guaranteed, and the field assembly difficulty is reduced. The invention further discloses a construction method of the large-size cross beam on the integrated steel.

The invention relates to a built-in damping vibration attenuation device. The built-in damping vibration attenuation device comprises a connecting cylinder and a damping set; the connecting cylinder is internally provided with a containing area used for containing a clamp for clamping a vibration attenuation target; the damping set is arranged in the connecting cylinder and comprises two hydraulic dampers, the two hydraulic dampers of the damping set are symmetrically arranged on the two sides of the containing area, cylinder barrels of the two hydraulic dampers contained in the damping set communicate with each other through a guide pipe, and piston rods of the hydraulic dampers are used for abutting against the clamp. Interconnection of the two opposite hydraulic dampers is achieved through the guide pipe, so that hydraulic inerter between the two hydraulic dampers of the damping set is achieved, negative rigidity is provided for the structure through the hydraulic inerter, and the vibration control effect of the structure can be greatly improved.

The embodiment of the invention relates to a semiconductor structure and a manufacturing method thereof. The manufacturing method of the semiconductor structure comprises the steps of providing a substrate and a welding pad located on the substrate, forming an insulating medium layer on the substrate, wherein the insulating medium layer covers the welding pad, patterning the insulating dielectric layer, forming a first window in the insulating dielectric layer, and enabling the first window to expose the welding pad, forming a mask layer is formed on the insulating dielectric layer, the mask layer is patterned, a second window is formed in the first window, and the welding pad is exposed out of the second window; forming a first conductive layer in the second window, forming a second conductive layer on the first conductive layer, removing the mask layer to expose the side wall of the first conductive layer, and performing reflow treatment on the second conductive layer, so that the second conductive layer covers the top and the side wall of the first conductive layer at the same time. The reflow treatment process is adopted, the second conductive layers located on the top and the side wall of the first conductive layer are integrally formed, and connecting gaps are eliminated.

The invention relates to the field of machining, in particular to a clamping device and system, a control method and a bar clamping and conveying method. According to the clamping device, when a boosting rod is driven by a driving piece to move in the first direction, a first pressing roller support is driven to move in the first direction, and a transmission assembly drives a second pressing roller support to move in the opposite direction, so that the first pressing roller support and the second pressing roller support get close to each other to reduce a clamping space or get away from each other to expand the clamping space; an adjusting mechanism elastically acts on the driving piece and the boosting rod in the axial direction so that a connecting gap can be eliminated, precision is guaranteed, and accumulative errors are avoided; and the first pressing roller support is connected to the boosting rod in a floating mode such that a large displacement floating compensation function can be achieved, the problem of deviation such as vertical shaking in the workpiece conveying process is solved, and it is guaranteed that the axes of clamped bars and the center of a rotating cutter wheel are always kept consistent in the machining process such that the product quality problems that in the cutting process of the surfaces of the bars, the cutting thicknesses are different or some bars are not cut off and the like can be solved.

The invention discloses a helmet hook suspension device, and belongs to the technical field of illumination. The helmet hook suspension device comprises a miner helmet suspension part and a miner lamp connecting part, the miner helmet suspension part is arranged on the miner helmet, the miner lamp connecting part is arranged on the miner lamp, and the miner lamp connecting part is clamped on the miner helmet suspension part; and at least one of the miner helmet suspension part and the miner lamp connecting part is provided with an elastic fixing piece, and the elastic fixing piece is used for elastically and fixedly connecting the miner lamp connecting part and the miner helmet suspension part. The helmet hook suspension device prevents the miner lamp from inclining when suspended on the miner helmet to a certain extent, is good in stability, and ensures the effectiveness and the lighting effect of lamp cap suspension and normal mine operation.