14results about How to "Guaranteed neutrality" patented technology

This invention relates to a control method for automatically leveling the pinch roll to ensure the coil shape. The steps are as follows: pressing the pinch roll of the winding machine against the coil, recording the pressure on both sides of the pinch roll and the roll gap value, and writing them into two preset stiffness arrays; applying a preset pressure value G to one side of the pinch roll. 设 The corresponding roll gap value Gm is found based on the stiffness array of the same side. Based on the found roll gap value Gm and its corresponding stiffness array, the theoretical pressure value Fb on the other side of the pinch roll is determined. A safety limit is applied to the theoretical pressure value Fb to determine the final execution pressure value G on the other side. 执 The set pressure value G is applied to both sides of the pinch roller. 设 Execution pressure value G 执 This invention ensures that the roll gap value remains consistent on both sides under different pressures. It maintains consistent roll gaps on both sides, avoiding roll defects caused by pressure variations, significantly reducing roll rework rates, preventing losses during lifting due to misalignment, and minimizing quality losses.

The application discloses a crankshaft transmission mechanism for an engine, which comprises a crankshaft and a connecting rod, a crank arm and a balance weight are integrally formed and are connected through a smooth transition of a concave arc surface; a first boss in a ring shape is arranged on the outer side surface of the crank arm near the two ends of the crankshaft, and the radial outer contour of the first boss extends to be tangent to the concave arc surface; the end surface of the one end of the crank arm where a connecting rod journal is located is a circular arc surface, is concentric with the connecting rod journal, and has a diameter smaller than the outer diameter of the axial end surface of the big end of the connecting rod. The radial size of the first boss is enlarged to increase the contact area with the inner wall of the shell to reduce the surface pressure, meanwhile, the big end of the connecting rod is exposed to the axial end surface to form a lubrication exposed area through the circular arc surface, so that forced lubrication and cooling are realized; and through the structure that the end surface of the driving gear is integrated into a contact surface, the semi-ring second boss surface is axially positioned, the connecting rod journal is thickened, and the eccentric mass block of the balance shaft is recessed to avoid, the wear resistance, the lubrication and heat dissipation performance, the structural strength and the running stability of the crankshaft transmission mechanism are simultaneously improved under the compact layout.

The invention provides a vertical suspended sand feeding device and method for an electroplated diamond wire, the vertical suspended sand feeding device comprises a sand feeding cylinder, a sand washing part, a plugging part, a plugging base and a sand washing bottom plug, a wire passing hole is formed in the middle of the sand washing part, a mounting groove is formed in the bottom of the sand washing part, and the mounting groove communicates with the wire passing hole; the plugging piece is arranged between the plugging base and the mounting groove, the sand washing bottom plug is fixed below the sand washing piece, and the plugging piece is movably limited in a gap formed between the plugging base and the groove bottom of the mounting groove; an inclined flow guide liquid inlet hole is formed in the sand washing part and is communicated with the wire passing hole; when the electroplated diamond wire is pulled from bottom to top, friction force generated between the electroplated diamond wire and the plugging piece pulls the plugging piece and seals the lower portion of the wire passing hole, plating liquid entering from the inclined flow guide liquid inlet hole obliquely impacts the plugging piece, the plugging piece rotates in the containing groove of the plugging base, and carborundum is made to suspend; according to the invention, stable sand feeding is facilitated, and the plating effect of the electroplated diamond wire is improved.

This invention relates to the field of tarpaulin splicing technology, specifically to a tarpaulin coating post-splicing positioning and connection device, comprising a support structure, two axially parallel material rollers mounted above the support structure, and an adjusting frame assembly between the two material rollers for adjusting their axial displacement. The adjusting frame assembly has a positioning clamping structure for positioning and clamping the material rollers. The support structure has a support wheel assembly for rolling support of the adjusting frame assembly. The adjusting frame assembly has a side detection assembly for positioning and detecting the side of the tarpaulin. The axial distance between the two material rollers can be adjusted through the adjusting frame assembly, thereby adapting to different splicing width requirements of the tarpaulin. The fifth electric telescopic rod of the hot pressing assembly can drive the wheel platform to move, realizing the adjustment of the distance between the fixed electrode plate and the moving electrode wheel, which can adapt to the high-frequency hot pressing requirements of tarpaulins with different coating thicknesses, greatly improving the applicability of the equipment.

The application discloses an out-of-cabin mounted cabin safety valve with a modular excess pressure mechanism and a method. The cabin safety valve comprises a shell (1), a diaphragm (2) arranged in the inner cavity of the shell (1), and a knife-edge valve (3) arranged on the bottom surface of the diaphragm (2). The upper surface of the diaphragm (2) and the shell (1) form a B cavity, the inner side of the knife-edge valve (3) and the shell (1) form an A cavity, and the outer side of the knife-edge valve (3), the bottom surface of the diaphragm (2) and the shell (1) form an atmosphere cavity (4) which is connected with the atmosphere. The A cavity and the B cavity are connected through a hollow valve rod (5). The B cavity is connected with an excess pressure mechanism. The cabin safety valve solves the problems of poor control precision, difficult product debugging and easy fluctuation of excess pressure value under high-altitude conditions.

The invention provides a numerical control pre-assembling machine for a ferrule joint, and relates to the technical field of industrial robots. The numerical control pre-assembling machine for the ferrule joint comprises a shell; the limiting block is arranged at the top of the shell; and the jacking mechanism comprises an upward jacking unit and a positioning seat, the positioning seat is limited in the limiting block, the upward jacking unit is arranged under the positioning seat, and the upward jacking unit can vertically move upwards in the direction of the positioning seat. When the device works, an operator places a steel pipe sleeved with a clamping sleeve and a nut at the top end of the jacking unit, after the device is started, the jacking unit vertically moves upwards, the steel pipe is pushed into the positioning base above, under the constraint of an inner cavity of the positioning base, the clamping sleeve is extruded to deform and evenly cut into the outer wall of the steel pipe, and preassembling is completed; and the centering property of the pre-assembling device and the pre-assembling device is ensured through the limiting block, so that manual wrench operation is replaced by controllable mechanical force, and the problems of non-uniform pressure and unstable quality of manual pre-assembling are fundamentally solved.

This invention discloses a clamping and flipping mechanism for a cold heading machine and its usage method, relating to the field of cold heading machine technology. It includes a housing and further comprises: a flipping assembly, including a rotating rod, which drives the workpiece to move and rotate when it needs to be flipped; a clamping assembly, including multiple symmetrically arranged arc-shaped plates, each with an elastic pad on its outer surface; when the workpiece diameter increases, the arc-shaped plates drive the elastic pads to move away from the workpiece end and reduce the clamping force on the workpiece; when the angle of the workpiece shifts after flipping, the arc-shaped plates rotate and, through the elastic pads, drive the workpiece to finely adjust its angle; when the workpiece is upset and deformed and its axis shifts, the arc-shaped plates rotate, causing the elastic pads to deform and support and lift the workpiece; through different actions of the telescopic rod and the adjusting rod, the clamping force is adaptively adjusted to match the workpiece diameter, correcting the flipping angle shift, switching the contact position to avoid the wear area of ​​the elastic pads, and leveling the tilted posture of the workpiece.

This utility model discloses a high-efficiency finger-jointed splicing device for solid wood small pieces, including a base and a splicing machine body. The splicing machine body is fixedly connected to the top of the base. It also includes: a support frame, which is fixedly connected to the base near the inlet of the splicing machine body, with multiple support rollers rotatably connected to the inner side of the support frame; and a support frame, which is fixedly connected to one side of the support frame, with an assembly frame vertically slidably connected to the inner side of the support frame. A hydraulic cylinder is fixedly connected to the top of the support frame, and the output end of the hydraulic cylinder is fixedly connected to the assembly frame. This utility model relates to the field of finger-jointed board processing technology. Through the structural cooperation of the hydraulic cylinder and the board feeding assembly, this utility model can effectively feed finger-jointed boards of different thicknesses by coordinating with the vertical adjustment of the assembly frame. Furthermore, because the finger-jointed boards are supported by the support rollers, they will not sink due to gravity or other reasons when not in transit, making the transmission of the finger-jointed boards more stable.

The utility model relates to the technical field of casting pump bodies, and discloses a metal casting pump body convenient to install, a connecting flange used for connection is fixedly installed on the outer side of the lower end of a pump body, an installing flange used for external connection is arranged at the lower end of the connecting flange, and an external pipe is fixedly installed at the lower end of the installing flange. Through cooperation of the ball groove in the lower end of the pump body and the hemispherical protruding block in the center of the fixing flange, preliminary accurate positioning of the pump body and the fixing flange is achieved, the installation error is reduced, the fixing flange is rotated to enable the trapezoidal grooves of the connecting flange and the fixing flange to be aligned, secondary positioning is conducted through the trapezoidal block, and the connecting stability is further enhanced; relative sliding in the connecting process is effectively prevented through the design of the trapezoidal block, the connecting firmness is ensured, the mounting holes are formed in the coinciding position of the connecting flange and the fixing flange, when the trapezoidal block is mounted in place, the mounting holes coincide naturally, additional adjustment is not needed, the mounting steps are simplified, and the mounting efficiency is improved.

The utility model provides a continuous rolling device for a copper pipe, and relates to the technical field of copper pipe production equipment. The rolling assembly comprises a supporting base fixed to the bottom plate, during working, the first transmission motor drives the first working roller to rotate, the first rotating block is driven to move through meshing of the first gear and the second gear, the third gear on the second rotating block is meshed with the second gear, and then the fourth gear is meshed with the third gear; a hydraulic push rod pushes a connecting block to slide in a supporting seat, drives a second working roller to adjust the position and forms an adjustable rolling gap with a first working roller; in the aspect of a positioning assembly, a first rotating seat on the supporting block drives a limiting sleeve to rotate, and a third rotating block slides in the limiting sleeve, so that a copper pipe is accurately positioned during rolling; continuous and stable feeding of the copper pipes is achieved, the rolling requirements of the copper pipes of different specifications can be met, and the production efficiency and the product size precision are improved.

This utility model relates to the field of telescopic sleeves, specifically to a telescopic sleeve length adjustment device. It includes a telescopic sleeve assembly consisting of an outer tube and at least one inner tube. The innermost inner tube has no limiting hole, while at least the second innermost inner tube of the outer sleeve has at least one limiting hole. A control area is provided at the bottom of the inner tube closest to the limiting hole, nested within the sleeve with the limiting hole. A limiting component and a reversing component are provided within this area. The limiting component includes a limiting tongue, a limiting shaft, and a limiting torsion spring, causing the limiting tongue to tend to extend outwards and engage with the limiting hole. The reversing component includes a reversing spring, a reversing shaft, and a reversing torsion spring. The first end of the reversing spring acts on the tail of the limiting tongue to maintain or release the retracted state of the limiting tongue. This device achieves automated telescopic extension and retraction of multiple sleeve sections, solving the problems of low efficiency and inconvenience in existing multi-section telescopic sleeves that require individual operation of each section.

The utility model discloses a circuit breaker pressure spring pin pressing and riveting tool, and belongs to the technical field of electrical equipment manufacturing, the circuit breaker pressure spring pin pressing and riveting tool comprises a rack, a positioning assembly, a limiting assembly and a pressing and riveting assembly, the positioning assembly is installed on one side of the rack, and a positioning groove is formed in the positioning assembly; the limiting assembly is arranged opposite to the positioning assembly and used for clamping and driving the insulation pull rod to move in the direction close to or away from the rivet pressing assembly, and the rivet pressing assembly is used for riveting the edge of the pressure spring pin. The positioning assembly, the limiting assembly and the press riveting assembly are used in cooperation, automatic and accurate riveting of the pressure spring pin can be achieved, the riveting efficiency of the pressure spring pin is improved, the consistency of the knocking angle and position of the pressure spring pin is guaranteed, the situation that the center of the pressure spring pin is expanded due to stress, and use is affected is effectively avoided, and the production efficiency is improved. The action reliability and the operation stability of opening and closing of the circuit breaker are improved; according to the utility model, the qualified rate of opening and closing parameters of the circuit breaker can be effectively improved, batch reworking is reduced, and the production efficiency is improved.

The application provides a kind of automatic installation device of launch vehicle relief valve, through elastic device, locking half clamping device, effectively realize the automatic suspension of relief valve and tee pipe combination and assembly docking, the vertical direction of fixed screw nut pair mechanism after fixed replaces the person who needs to drag relief valve combination outside cabin body.Compared with the prior art, the installation device of relief valve first guarantees the installation position of relief valve, the uniformity of flange surface docking and the accuracy of relief valve venting port centring and perpendicularity, then tightens and fixes the docking bolt nut of relief valve flange surface, the screw nut pair mechanism in three directions greatly improves the installation accuracy and avoids the matching error of operator.The second breakthrough of the application is that the motor is connected with the motion platform through the screw nut pair to complete the driving of the motion platform, so as to ensure that the gap of flange surface is uniform, the accuracy error of relief valve venting port centring and perpendicularity is within 1mm.

The utility model discloses a lower control arm of a double-fork-arm front suspension, which comprises a control arm body, the control arm body is of a cavity structure formed by buckling and welding an upper plate and a lower plate, and a first extension end, a second extension end and a third extension end of the control arm body are respectively used for connecting a front bushing, a rear bushing and a ball pin assembly; the damping support assembly comprises a damping inner plate, a damping outer plate and a mounting nut, the damping inner plate is embedded in the cavity structure and welded to the inner wall of the upper plate and the inner wall of the lower plate, the damping outer plate is arranged on the outer side of the upper plate and welded to the upper plate, and the mounting nut is fixed to the side, back to the damping outer plate, of the damping inner plate; through holes are formed in the areas, right opposite to the damping inner plate, of the upper plate and the lower plate, a damper mounting channel is formed between the damping inner plate and the damping outer plate, and mounting through holes used for bolt connection are formed in the damping inner plate and the damping outer plate in a right opposite mode. The mounting function integration of the shock absorber can be realized, and the requirements of light weight and structural reinforcement are met.