22results about How to "Stable friction" patented technology

The present invention proposes a durable three-axis drive mechanism for a minimally invasive cell puncture instrument, which belongs to the field of precision transmission technology. The drive mechanism includes an X-degree-of-freedom motion table, a Y-degree-of-freedom motion table, and a Z-degree-of-freedom motion table connected in series; the X-degree-of-freedom motion table, the Y-degree-of-freedom motion table, and the Z-degree-of-freedom motion table all include a base, on which a stator assembly, a pre-tightening magnet, a magnetic friction foot, and a link magnet and a piezoelectric body are installed; the stator assembly consists of a slide rail and a slider, the slide rail is fixed on the base, and the slider forms a sliding fit with the slide rail, and the sliding directions of the sliders of the X-degree-of-freedom motion table, the Y-degree-of-freedom motion table, and the Z-degree-of-freedom motion table are their degrees of freedom directions, respectively. The present invention realizes minimally invasive cell puncture based on the inertial drive principle, and has the advantages of simple structure, strong wear resistance, wear self-adaptation, modular replacement, and no need for pre-tightening and loosening prevention, and has the potential to achieve durable drive.

The invention relates to an iridium radioactive source shell welding method and system, and belongs to the technical field of welding. The iridium radioactive source shell welding method comprises the following steps that a shell is rotated, and the shell and an end cover are preheated through laser; inputting actual thickness size information of the shell and actual thickness size information of the end cover; the laser adjusts the preset laser power density and defocusing amount according to the actual thickness size information and the standard thickness size information of the shell and the end cover; the automatic rotating mechanism adjusts a preset rotating speed according to the actual thickness size information of the shell and the actual thickness size information of the end cover; the assembled shell and end cover are installed on an automatic rotating mechanism; and the shell and the end cover are welded according to the preset laser power density and defocusing amount, and the automatic rotating mechanism drives the shell and the end cover to rotate according to the preset rotating speed until welding is completed. According to the iridium radioactive source shell welding method provided by the embodiment of the invention, the thickness size of each part of the manufactured iridium radioactive source shell is uniform.

The invention provides a continuous feeding device and method for square bars. The device comprises two roller driving units which are symmetrically arranged on the two sides of a square bar feeding path. Each roller driving unit comprises a box body, a worm rotatably arranged in the box body, at least two worm gears meshed with the worm, rollers coaxially and fixedly connected with the worm gears, and a driving mechanism; the rollers are configured in a manner that the working surfaces of the rollers can accommodate and press the side surfaces of the square bar, and a feeding cavity for clamping the square bar is formed between the corresponding rollers of the two roller driving units; the driving mechanism is connected to the worm and used for driving the worm to rotate. According to the square bar feeding device, a structure that a plurality of worm wheels on the same side are driven by a single worm at the same time is adopted for feeding square bars, stable conveying of the square bars can be achieved, and the problems that the square bars are prone to deflection or torsion in the feeding process, and the feeding precision and stability are difficult to guarantee are solved.

The utility model relates to track robot technical field discloses a track robot walking device and automatic feeding robot, including walking mechanism, walking mechanism cooperation installation on the track of cross section is I -shaped, and walking mechanism includes box, drive mechanism, guide mechanism, power supply, drive mechanism includes drive module, driving wheel and driven wheel, and drive module is located in the box, and drive module transmission connection driving wheel, and driving wheel is located track both sides respectively with driven wheel and carries out the clamping to track, and power supply is connected with drive module electrically, and drive module provides electric energy, guide mechanism rotatory connection is in the box top, and guide mechanism is equipped with two, and is separately located drive mechanism front and back two sides, and guide mechanism and track contact cooperation, and the movement track of drive mechanism is guided. The utility model is compact in space, light in weight, and stable in operation, drive mechanism, guide mechanism modular design, and the versatility is strong, and the maintenance and maintenance are convenient.

The utility model relates to positioning mechanism technical field, especially an industry fixed type fire monitor jet angle positioning mechanism, including support elbow pipe, the bottom of support elbow pipe has the installation bottom pipe through the rotary seal bearing rotation connection, the top of support elbow pipe is connected with the adapter pipe through bolt fixedly, the utility model has the advantages that: through the sliding fit of arc assembly board and assembly groove, the quick assembly and disassembly of locking bolt are combined, the independent replacement of arc rubber strip is realized, the connecting component of arc clamp and jet pipe does not need to remove, the problems such as rust jamming, clamp damage caused by removing fastening component in traditional design are avoided, the cooperation of positioning pin and positioning hole, sliding support and sliding slot ensures that arc assembly board installs accurately, guarantees that arc rubber strip and jet pipe are close, maintain stable friction, solve the problem that rubber strip replacement is troublesome, positioning effect drops, improve maintenance efficiency and long-term reliability of mechanism.

The present application relates to copper aluminum composite waste treatment technical field, provide a kind of copper aluminum composite waste continuous feeding stripping device, including main unit, it includes chassis, the right end top surface of the chassis is fixedly arranged with work stand, the left end of the work stand and the left end top surface of chassis is fixedly arranged with device cylinder;Conveying unit is arranged in the inside of main unit, it includes binding part and the conveying part located in its right side;Stripping unit is arranged in the side of conveying unit, it includes stripping part and the cutting part located in its left side.The present application is cooperated by being provided with binding part and conveying part, so that when copper aluminum composite waste feeding stripping is carried out, copper aluminum waste existing in loose roll form can be quickly wound and positioned, and is quickly conveyed by fixed shape, subsequent stripping operation is facilitated, the feeding time of copper aluminum composite waste can be greatly saved, and subsequent skin cutting stripping is facilitated, work efficiency is greatly improved.

The utility model discloses a kind of thread structures of optical lens, including back seat and lens barrel, back seat is equipped with rectangular internal thread;Lens barrel is equipped with trapezoidal external thread matched with rectangular internal thread;Two corner parts of the crest of rectangular internal thread are in contact with the side of trapezoidal external thread;By adopting the cooperation of rectangular internal thread and trapezoidal external thread, and design the crest corner part of rectangular internal thread is in contact with the side of trapezoidal external thread, the close cooperation of thread and uniform stress are realized.This structure not only enhances the stability of threaded connection, but also makes wear mainly concentrate in the crest corner part of rectangular internal thread, facilitate control and predict wear site, reduce the risk of optical lens imaging quality decline caused by thread loosening.In addition, the matching mode can form stable friction in the assembly process, which helps to realize more accurate torque control, further improves the precision and reliability of optical lens assembly.

The invention relates to a power transmission device. The power transmission device stably generates friction force. The first friction plate is disposed between the first rotating body and the second rotating body in the axial direction. The first friction plate has an outer sliding portion and an inner sliding portion. The outer sliding portion is disposed radially outward of the elastic member. The outer sliding portion generates a frictional force when rotating relative to the second rotating body. The inner sliding portion is disposed radially inward of the elastic member. The inner sliding part generates friction force when rotating relative to the first rotating body.

This utility model discloses an industrial sewing machine with an automatic feeding mechanism. Relating to the field of industrial sewing machine technology, the machine includes a sewing machine body and a feeding mechanism. The feeding mechanism includes a mounting component disposed on one side of the sewing machine body; a feeding roller comprising a driving roller and a driven roller, which are vertically distributed; and an adjusting component mounted on the mounting component and connected to the driven roller on the feeding roller. This industrial sewing machine with an automatic feeding mechanism achieves dynamic self-adaptation of the driven roller pressure through the movable plate-slider-spring structure of the adjusting component: when feeding thick fabric, the fabric supports the driven roller, causing the movable plate to move upward, increasing the spring compression and ensuring stable friction; when feeding thin fabric, the spring force gently presses the fabric, avoiding indentations or damage. Combined with the vertically distributed compression of the driving and driven rollers, this significantly improves sewing quality.

This invention relates to the field of power transmission line operations and provides a power grid sealing and traction device. The power grid sealing and traction device includes: a frame assembly with an opening for inserting a conductor; a traction assembly including a plurality of first rollers and a first drive device; the first rollers and the first drive device are disposed within the frame assembly, located at the top of the opening, the first rollers supporting the conductor and rolling relative to it, and the first drive device driving the first rollers to rotate; and a top-line assembly including a top rod, a second roller, and a second drive device; the second drive device driving the second roller to press against the conductor. The traction assembly rolls and pulls above the conductor, while the top-line assembly presses against the conductor from below. This dual-action structure of upper traction and lower pressing improves the smoothness of the traction action.

The utility model relates to the technical field of automobile parts, and disclose a soft silica gel plug support, including rectangular card and special-shaped support, the upper and lower ends of rectangular card along the length direction all are fixedly connected with a group of silica gel plug, every silica gel plug all is equidistance distribution, the inner wall of special-shaped support is fixedly connected with the plug -in card, the side surface of rectangular card is equipped with the occlusal slot. This soft silica gel plug support, set up silica gel plug can insert rectangular card to the car air outlet, through the elastic deformation force of silica gel plug tightly fits the air outlet inner wall, produces the steady friction, ensures that rectangular card is fixed firmly on the air outlet, can avoid scratching the surface of car air outlet simultaneously, protects the appearance and integrity of air outlet, secondly, the combination use of rectangular card and special-shaped support can be separately with special-shaped support dismount, need not repeatedly dismount rectangular card, can avoid the harm to car air outlet.

The utility model belongs to the technical field of film slitting, especially a film slitting machine for polyvinyl chloride color film production, including the workstation, still including cutting mechanism, the rear side wall fixedly connected with cutting mechanism of workstation. The first electric push rod in the cutting mechanism can drive the sliding block to slide in the sliding groove, which makes the second electric push rod connected with the sliding block and the cutting knife can move in the horizontal direction. By controlling the extension amount of the first electric push rod, the position of the cutting knife in the horizontal direction can be accurately adjusted, thereby adapting to the slitting demand of polyvinyl chloride color film of different widths, improving the versatility and applicability of the slitting machine, the second electric push rod can drive the connecting flange, connecting rod and cutting knife to move in the vertical direction. In the cutting process, the height of the cutting knife can be flexibly adjusted according to the thickness of the color film and the cutting process requirement, ensuring the consistency and stability of the cutting effect.

The invention discloses a mechanical locking hydraulic oil cylinder, which relates to the technical field of hydraulic devices, and comprises a cylinder body assembly and a locking assembly I, the cylinder body assembly comprises a cylinder body, a piston rod, a communicating pipe, a sliding barrel, a check block and a second spring. The piston rod and the sliding barrel are arranged in the cylinder body in a sliding manner; the first locking assembly comprises a fixing ring and a limiting piece. The limiting piece comprises a first telescopic rod, a first spring and a clamping block. A baffle block and a fixing ring are fixed on the piston rod; two ends of a telescopic rod I are respectively arranged on the fixing ring and the telescopic rod I; the sliding cylinder is located between the two check blocks. Piston rod slippage caused by internal leakage of a hydraulic system can be completely avoided through a mechanical locking mechanism, and the reliability and safety of equipment are improved; in the shutdown state, the clamping block is completely attached to the check block, friction force is generated, and the piston rod can be effectively prevented from accidentally extending outwards; the electromagnetic valve and the second spring enable the sliding cylinder to automatically reset during shutdown.

The utility model discloses a column formwork fixing structure which comprises a first clamping plate and a second clamping plate which are the same in structure, one end of the first clamping plate is bent and extends to form a U-shaped hanging portion, and a plurality of strip-shaped fixing holes extending in the thickness direction of the first clamping plate are formed in the plate face close to the other end of the first clamping plate. The hanging part of the first clamping plate is sleeved on the second clamping plate through the U-shaped groove of the first clamping plate, a triangular fixing plate is inserted into the fixing hole of the second clamping plate, and one side of the fixing plate is propped against the hanging part of the first clamping plate, so that the first clamping plate and the second clamping plate are connected and fixed; the fixing plate is of a right triangle structure, the hole wall, directly facing the bevel edge of the fixing plate, of the fixing hole of the second clamping plate is provided with a slope face with the same slope as the hole wall of the fixing hole of the second clamping plate, the right triangle fixing plate is adopted, contact between the fixing plate and the hooking part and contact between the fixing plate and the fixing hole are both surface contact, and the fixing effect is better; and the fixing plate is not easy to rotate under the action of counter force, so that the stability is better.

The invention discloses a friction conveying motor of a ribbon loom, and relates to the technical field of textile equipment. The device comprises a creel, a fixed pulley is arranged on one side of the top of the creel, and a friction wheel is arranged on the other side of the top of the creel; a positioning assembly is arranged in an inner cavity of the creel and comprises a two-way lead screw, and the two-way lead screw is movably connected to one side of the inner cavity of the creel. The creel can be installed on the surface of the creel walking rail through the inner cavity of the rail groove, the motor drives the two-way lead screw to rotate, the two sliding sleeves can be driven to move relatively, and therefore the rolling wheels are driven to move, the surfaces of the rolling wheels can be attached to the two sides of the creel walking rail, and the creel is positioned; the friction motor can conveniently drive the creel to move on the surface of the creel walking track subsequently, the sliding sleeve moves to drive the mounting plate to move, and the support drives the fixed pulley to move, so that the fixed pulley is positioned and can be attached to the friction wheel.

The utility model provides a mining lamp pothook with stable installation, which relates to the technical field of pothooks, and comprises a main body and an adjusting mechanism, the surface of the main body is provided with the adjusting mechanism, the stable connection of a hooked object is increased through the adjusting mechanism, so that the lamp is prevented from shaking and the lighting effect is maintained; the height of the adjusting mechanism is changed according to the thickness of a mooring rope, a rotary limiting screw rod fixes the rotary block to one side of the body through a sleeve shaft, a sliding frame bears displacement of the moving blocks and restrains the displacement direction, the screw rod is controlled to rotate through rotation of a rotary piece, and the two sets of moving blocks with opposite internal threads are driven to move oppositely. The upper arc piece and the lower arc piece jointly abut against the cable to form a relatively stable structure, the mining lamp is connected through the connecting screw, the mining lamp is connected with the cable, the rubber sleeve is compressed to increase friction with the mining lamp, and certain buffering is provided.

The invention discloses a weight and liquid level detection device for lead-acid battery production, and the device comprises a roller conveying line which is used for conveying lead-acid batteries; a lifting mechanism; the pressure sensor is arranged between the first lifting cylinder and the connecting plate and is used for detecting the weight of the lead-acid battery; a liquid level detection assembly; the device detects the weight and the liquid level at the same time, the detection time can be saved, the lead-acid battery is in a static state during liquid level detection, and the detection result is more accurate; the weight and liquid level detection devices are integrated, so that the occupied space is smaller, and the plant space can be saved.

The utility model provides a hydraulic valve block for agricultural machinery, which relates to the technical field of hydraulic valve blocks, and comprises a mounting base and a hydraulic valve block body, and further comprises clamping pieces arranged on the outer sides of the two ends of the hydraulic valve block body, and clamping claws arranged on the two sides of the hydraulic valve block body and used for clamping and limiting the hydraulic valve block body, through coaxial locking of a second rotating arm and a connecting plate, stable clamping of a hydraulic valve block body can be maintained without the continuous action of hydraulic power, the situation that clamping of the hydraulic valve block body by a clamping claw fails due to system pressure fluctuation is avoided, and the reliability of workpiece fixing in agricultural machine operation is guaranteed; a rigid supporting structure is formed in the self-locking state, and the overall external force interference resisting capacity is greatly improved.

The application discloses a friction type cable-stayed cable damper and a cable force monitoring method, and the damper comprises a friction pair connecting steel plate, first clamping plates and second clamping plates arranged on the upper and lower sides of the friction pair connecting steel plate, a friction pair arranged between the first clamping plates and the second clamping plates and a clamping plate connecting plate; the friction pair is fixed with the friction pair connecting steel plate or the clamping plate connecting plate; the contact areas of the first clamping plates and the second clamping plates with the friction pair are provided with different roughnesses from outside to inside; the two clamping plates are fixed through a second clamping bolt; a bolt force sensor is arranged between the second clamping bolt and a nut; a displacement sensor is arranged on the clamping plate connecting plate; bolt pretightening force data collected by the bolt force sensor in real time and cable force data collected by the displacement sensor in real time are transmitted to a client through a data collector, and real-time dynamic monitoring of a working state of the damper is realized; there is no risk of oil leakage, the life cycle cost is low, and installation and maintenance are simple and convenient.

The application discloses a building formwork installation error compensation device, which comprises a bottom plate, a support assembly, a transverse sliding assembly and a longitudinal sliding assembly. The support assembly comprises a plurality of sliding plates, the sliding plates are provided with formworks, the formworks are movably connected with inserting rods through cylinders, the inserting rods are provided with sleeve rings with connecting rods, and the inclined surfaces of the end portions of the connecting rods support the four corners of the inner walls of the formworks to provide internal support. The transverse sliding assembly comprises fixed strips fixed to the upper surfaces of the sliding plates and notches at the bottoms of the formworks, and the transverse position adjustment and fixation of the formworks are realized through U-shaped blocks and screw rods. The longitudinal sliding assembly comprises U-shaped frames on the bottom plate and grooves at the bottoms of the sliding plates, the U-shaped frames are provided with extruding blocks and inserting plates, the inclined grooves on the inserting plates are matched with the extruding blocks, and the longitudinal movement and positioning of the sliding plates are realized. The device can effectively compensate for the transverse and longitudinal errors of the building formwork during the installation process, and improve the installation precision and efficiency.