43results about How to "Increase or decrease friction" patented technology

The invention discloses a device and a method of testing the temperature of each part of a dry clutch. The device comprises a rack, a variable-frequency motor arranged at the right side of the rack, a fixing shaft arranged at the left side of the rack, a pressure plate arranged at one end of the fixing shaft, and a flywheel arranged on a rotating shaft of the variable-frequency motor, wherein the pressure plate and the flywheel are arranged oppositely, and a friction disk is arranged between the pressure plate and the flywheel; the pressure plate and the friction disk sleeve the fixing shaft from left to right; the pressure plate and the flywheel are rotating parts and are driven by the variable-frequency motor to rotate synchronously, the pressure plate can move axially relative to the fixing shaft, and the friction disk is arranged on the fixing shaft and does not rotate; and multiple temperature acquisition parts are distributed in an array mode on the relative friction surface among the pressure plate, the friction disk and the flywheel. Through the above structural layout, independent temperature data of the pressure plate, the friction disk and the flywheel can be directly acquired, no other transmission paths are needed, and temperature data can be directly read through temperature display screens of the temperature acquisition parts.

The invention relates to the technical field of training rehabilitation instruments and particularly relates to a rehabilitation training device for ankle joints. The rehabilitation training device comprises a foot pedal, a globe joint structure and a globe joint supporting seat, wherein the globe joint structure is fixed on the lower surface of the foot pedal; the globe joint supporting seat hasan accommodating space for accommodating the globe joint structure, the globe joint structure is placed in the accommodating space, the center of sphere of the globe joint structure is not higher thanthe peak point of the accommodating space, and thus, the globe joint structure can freely rotate in the accommodating space under the action of an applied force. The rehabilitation training device for the ankle joints, provided by the invention, is simple in structure, small in size and low in construction cost and can achieve full-degree-of-freedom rehabilitation training.

The invention discloses a pay-off stand for a motor compensating winding, relating to the industry of motor production, in particular to a special tool for producing a motor stator compensating winding. The pay-off stand mainly solves the problems that existing multi-row wheel squeezing-pulling type pay-off stands cause damage and intersected deformation of the external insulation of an electromagnetic wire, affect subsequent coil formation and occupy a large area. The rotating shaft of the pay-off stand is connected on a support frame by a bearing, an electromagnetic wire coiling wheel is clamped and fixed on the rotating shaft by a wire support plate and a wire pressing plate, and a brake device of the rotating shaft is connected on the rotating shaft. The pay-off stand cannot damage the electromagnetic wire during the coiling of the compensating winding, can ensure the insulating property of coils of the motor compensating winding and improves the motor quality. The pay-off stand is also applicable to the winding of other types of motor stator coils.

The invention provides a tension adjusting device for a film covering roller of a die cutting machine. The tension adjusting device comprises a lower roller shaft used for installing a lower roller in the film covering roller of the die cutting machine to a machine frame in a pivoted mode. One end of the lower roller shaft extends to the outer side of the machine frame. The part, extending out of the outer side of the machine frame, of the lower roller shaft is sleeved with a friction block. The friction block can move relative to the lower roller shaft in the axial direction and is fixed relative to the lower roller shaft in the circumferential direction. A spring and an adjusting handle are arranged on the outer side of the friction block. The spring is arranged on the lower roller shaft in a sleeving mode and used for compressing the friction block onto the machine frame. The adjusting handle is in screw fit with the tail end of the lower roller shaft so that the elastic pressure of the spring on the friction block can be kept. The tension adjusting device at least has the advantages that the spring keeps compressing the friction block so that the friction block can tightly abut against the outer side face of the machine frame, the compression force of the spring is adjusted through the adjusting handle, and therefore friction force between the friction block and the outer side face of the machine frame can be increased or decreased, and then the tension of the lower roller is changed correspondingly so as to adapt to actual demands. The tension adjusting device is simple in structure and flexible and convenient to operate.

The invention provides a multifunctional display heightening storage rack. The multifunctional display heightening storage rack comprises a U-shaped supporting plate, a first supporting seat, a secondsupporting seat and a wire collecting circuit board, wherein the first supporting seat is fixedly arranged on one side of the U-shaped supporting plate; the second supporting seat is fixedly arrangedon one side, far away from the first supporting seat, of the U-shaped supporting plate; and the wire collecting circuit board is fixedly arranged in the second supporting seat. The multifunctional display heightening storage rack provided by the invention has the functions of a notebook computer docking station and a double-host switching function, so that the working efficiency of people can beimproved, visual fatigue is avoided, the display can be reliably fixed, and that the display is toppled due to external force collision and dragging is avoided.

A multi-function exercise machine for exercising the upper, middle and lower body from a seated position including pull down, leg press, and forward and rearward wheel exercise regimens, all with adjustable resistance and weight capabilities, for exercising specific targeted muscle groups.

The invention discloses a roller blind balance regulator and a roller blind with the same. The roller blind balance regulator comprises a stepped shaft and a friction drum; the stepped shaft is provided with an external screw thread; the stepped shaft penetrates through the friction drum; the friction drum is provided with an internal screw thread; the friction drum is in threaded connection withthe stepped shaft; and a friction layer is arranged between the friction drum and the stepped shaft. The roller blind comprises a roller blind rod, fabric, two mounting members and the roller blind balance regulator, wherein a return spring is arranged in the roller blind rod. The roller blind rod drives the friction drum to rotate, the friction drum moves in the axial direction of a limiting threaded rod while the friction drum rotates, and thus the friction force between the friction drum and a friction layer is increased or decreased. When the roller blind rod rotates, the friction force between the friction drum and the friction layer can be increased or decreased along with change of torque of the return spring, and thus the function of dynamically balancing the return spring is achieved. By means of the roller blind balance regulator and the roller blind with the same, the torque of the return spring can be balanced better, the friction force between the friction drum and the friction layer can dynamically compensate the torque difference of the return spring, and the using effect is good.

The invention relates to a self-locking control device for hoisting equipment. According to the technical scheme, the self-locking control device comprises a fixed outer ring, an inner ring and a disc cam, the peripheral surface of the inner ring is provided with a circumferential groove, multiple wedge blocks are hinged to the end face of the circumferential groove, a torsional spring is installed on the hinged portion of each wedge block, one end of each torsional spring is connected with the inner ring, and the other end of each torsional spring is connected with the corresponding wedge block; the peripheral surface of the disc cam is formed by sequentially and smoothly connecting multiple convex parts and smooth parts which are evenly distributed, each convex part makes contact with the inner edge surface of the inner ring, the groove bottom of the circumferential groove is provided with multiple through grooves which are arranged in the radial direction of the inner ring, and the other end of each wedge block is arranged in the corresponding through groove; a sliding block is installed in each through groove, one end of each sliding block makes contact with the corresponding smooth part of the disc cam, and a gap exists between the other end of each sliding block and the other end of the corresponding wedge block; and an input shaft is installed on the disc cam, an output shaft is installed on the inner ring, and a torsional spring is installed between the input shaft and the output shaft. The self-locking control device for the hoisting equipment is ingenious in structure, convenient and rapid to operate and high in safety.

The invention provides a conical gear shaft twisting-stopping simulation structure device. The device comprises a fixed disk, a friction twisting-stopping disk, a transfer pressing disk, a positioning pin shaft and a compressing bolt, wherein the fixed disk is connected with the transfer pressing disk through the compressing bolt, and the friction twisting-stopping disk is positioned between the fixed disk and the transfer pressing disk; a pin shaft hole is formed in the friction twisting-stopping disk, and the positioning pin shaft is communicated with a pin hole in a part to be tested through the pin shaft hole for positioning; a space formed by the friction twisting-stopping disk, the fixed disk and the transfer pressing disk can accommodate the part to be tested. The invention provides an end face friction twisting-stopping structure which has the advantages of simple structure, convenience in use and easiness in assembly and decomposition, and can realize self-adaptive twisting constrained installation of a shaft end face in any angle in the circumferential direction during assembly, greatly facilitate twisting positioning of a shaft type part in the circumferential direction, reduce the assembly difficulty and shorten a testing period.

The invention provides a secondary water supply pipeline cleaning device. The secondary water supply pipeline cleaning device comprises a barrel assembly, a switching valve assembly, a cleaning assembly, a cleaning linkage assembly and a cleaning sealing cover assembly. A main cylinder in the cylinder assembly is a pipeline main body; the switching valve assembly is arranged at the bottom of the main barrel body and can realize switching between effluent and clean wastewater; the cleaning assembly is located at the top of the main barrel in a standby state and comprises a plurality of groups of telescopic brushes; the cleaning linkage assembly is located on the upper portion of the cleaning assembly and can drive the cleaning assembly to rotate and ascend and descend in the main cylinder; the cleaning sealing cover assembly is located at an upper cover in the cleaning linkage assembly, a sealing cover plate is arranged in the cleaning sealing cover assembly, the cleaning assembly and the cleaning linkage assembly can be isolated from a water source in a normal water supply state, a pipeline is cleaned when water is emptied, it is not needed to add chemical agents, and the cleaning device has the advantages of being thorough in cleaning, energy-saving and environment-friendly.

The total body exercise apparatus comprises a unique movable structure to provide resistance for a variety of exercises. In one or more embodiments, the exercise apparatus comprises arms rotatably secured via a joint that allows the arms to provide resistance in virtually any direction. The exercise apparatus utilizes this capability to resist motions of various exercises and body motions to tone and strengthen a user's muscles. The resistance provided may be adjustable by an adjustable resistance assembly or by a cuff and socket assembly that applies variable force to a spherical head of the joint of the exercise apparatus.

The invention relates to a descending machine for absorbing energy through a damping element, and belongs to the technical field of firefighting and motion equipment. A lower rope wheel (3) and an upper rope wheel (5) butt against rubber springs (7) through grooves, so that the rubber springs (7) extend and absorb kinetic energy of personal descending. The rubber springs (7) butt against the lowerrope wheel (3) and the upper rope wheel (5) through rollers (71), and relatively roll to prevent the sliding friction with ropes (4), so that the service life of the ropes (4) is prolonged. The rubber springs (7) are wrapped by rubber layers, and are clamped with a secondary plate heat dissipating gap (61) and a main plate heat dissipating gap (12) through the rubber layers to prevent invasion and blockage of foreign matters, so that the safety and the reliability can be guaranteed; and the heat dissipating parts leave away from the lower ropes (4) for full heat dissipation. The damping energy absorption effect of the rubber springs (7) is adjusted through adjusting screws (66) and control ropes (9) to prevent acute fluctuation of the descending speed and to prevent the panic.

The invention discloses a disposable uroscope for convenient examination, and relates to the field of uroscopes, the disposable uroscope comprises a tube sheath, an intubation tube is movably sleevedin the tube sheath, two ends of the intubation tube extend out of the tube sheath, the tube sheath is provided with an air inflation mechanism and a fixing mechanism, one end of the intubation tube isfixedly connected with a handle, by the arrangement of an airbag, the tube sheath can be fixed, slipping of the tube sheath can be effectively prevented, the risk of urethral injury is reduced, whenthe adjusting knob is rotated, the rotating sleeve and the lens can be driven to rotate, multi-directional diagnosis and treatment can be conducted, when the pressing block is pressed, the piston canbe driven to move, then clean water in the cleaning cylinder can be sprayed out, and cleaning treatment is achieved. Meanwhile, turbid liquid and blood clots in the surgical vision can be sucked out under negative pressure, the surgical vision can be effectively cleared, which is convenient for follow-up operation of medical staff, and it is guaranteed that the kidney pressure of a patient is in anormal state in the surgery.

The invention relates to an adjustable anti-skid vehicle wheel. The adjustable anti-skid vehicle wheel is composed of a wheel hub, a tire, an air pressure regulator, an air duct, a stay rod, a fixed sleeve, an air pressure bag, an anti-skid inner wheel, a controller and an annular electrode, wherein the tire is mounted on the outer edge of the wheel hub; the air pressure regulator is installed inthe wheel hub, and an electrode of the air pressure regulator is connected with the controller through the annular electrode; the annular electrode surrounds the center of the wheel hub, and is installed on the inner side of the wheel hub; the bottom of the fixed sleeve is installed on the wheel hub, and the bottom of the fixed sleeve faces the center of the wheel hub; one end of the stay rod is installed in the fixed sleeve, and the anti-skid inner wheel is connected to the other end of the stay rod; the air pressure bag is installed in the fixed sleeve, between the stay rod and the bottom ofthe fixed sleeve; the air pressure bag is connected with the air pressure regulator through the air duct, and the anti-skid inner wheel is composed of a plurality of arc-shaped wheel rims; when the air pressure regulator is adjusted by the controller to pressurize the air pressure bag, the arc-shaped wheel rims of the anti-skid inner wheel are aligned to or protrude from the tire; and when the air pressure regulator is adjusted by the controller to decompress the air pressure bag, the arc-shaped wheel rims of the anti-skid inner wheel is recessed on the outer edge of the tire.

The detection methods for labels coatings or contaminants on waste or broken glass, arranged before a recycling process often give false readings on determining the true nature of the materials present, hence an at least partial removal of said contaminants is necessary. An intensive abrasion of the waste glass or broken glass introduced into the unit with continuously applied shear and compression forces between blades (6) and a housing (10) is generated by the provision of a dry-washing unit with just one rotating driven shaft (12), to which the blades (6) are fixed with a fixed minimum separation (16) from the inner wall of the housing (10). The required abrasion is achieved by compression of the material flow, and the friction of the shards against each other thus generated and also by the transport process within the machine. By means of a suitable interaction of the blades (6) and the housing (10), a thorough and complete abrasion of the labels and contaminants sticking to the broken glass can be achieved which renders a manual material selection unnecessary.

A method of friction welding first and second parts together at an angular orientation relative to each other includes the steps of mounting the first part in a spindle for axial rotation and the second part in a non-rotatable holder. The spindle is then rotated and the angular orientation of the first part relative to the second part is determined at any specific time. The holder is moved toward the spindle to bring the second part into frictional contact with the first part at a selected one of the specific times that the angular orientation is determined. Accordingly, due to frictional contact, the respective contacting surface of the parts are melted. The speed of the rotation of the spindle is then decreased and the holder is moved toward the spindle to forcibly urge the first and second parts together at the contacting surface. Rotation of the spindle is stopped at a specific determined angular orientation of the first part relative to the second part while continuing to forcibly urge the parts together to allow cooling and fused solidification of the contacting surfaces.

Methods and apparatus for analyzing effects of friction on process control devices are disclosed herein. An example method includes determining a value corresponding to friction of an actuator and a process control device to be operated by the actuator, and determining a value indicative of an effect of the friction on operation of the process control device via the actuator based on the value corresponding to the friction and a predetermined value.

The invention relates to a radial-matched prepuce gun which comprises a gun body, a glans penis cover arranged at a gun mouth at the front end of the gun body, a circumcising and suturing mechanism located on the rear side of the glans penis cover, and an operation mechanism for driving the circumcising and suturing mechanism. The circumcising and suturing mechanism comprises a nail bin, a plurality of nail pushing pieces annularly distributed on the nail bin, a nail pushing base driven by the operation mechanism to move forward or backward, and trigger rods arranged on the front side of the nail pushing base and corresponding to the nail pushing pieces one to one. A rail which extends in the radial direction with the symmetrical center of the nail pushing pieces as the circle center is arranged on the nail bin. The front end of the trigger rods are matched with the outer side ends of the nail pushing pieces so that the nail pushing pieces can be driven to slide towards the inner sideof the rail. The invention is aimed at providing the radial-matched prepuce gun which can increase the circumcising amount. The radial-matched prepuce gun has the advantages that by means of a radialsuturing mode, the suturing surface of the gun is parallel to the plane where a prepuce root part is located, the suturing position can infinitely approach the prepuce root part, and redundant prepucecan be cut off to the maximum extent.

The invention discloses a precise troubleshooting device for a slip rope magnetic flux leakage detection fault region. The precise troubleshooting device comprises a mounting plate, wherein a pair ofpulley assemblies is arranged on the mounting plate, wire pressing clamps are mounted at the head and the tail of each pulley assembly, and the bottom parts of the pulley assemblies are matched with the mounting plate by means of guide rails; a motor is arranged on the mounting plate, the motor is connected with magnetic flux leakage detection equipment by means of a towing line cable, and a sliding speed adjusting device is mounted at the lower part of the mounting plate; when the magnetic flux leakage detection equipment detects magnetic flux leakage, the sliding speed adjusting device operates to make a slip rope magnetic flux leakage detection device stop near a fault point of slip rope steel cables to be detected; and the motor executes a forward and reverse rotation command to make the magnetic flux leakage detection equipment connected with the other end of the towing line cable repeatedly detect around the fault point, so that precise troubleshooting of the fault region is completed. The precise troubleshooting device reduces the manpower maintenance cost, lowers the labor intensity, can perform safety assessment, fault positioning and data acquisition on the steel cable ofslip rope equipment, and can carry out self-adaptive speed regulation parking of the detection device near the fault point.

The invention relates to an endoscope stomach volume adjusting band curve degree adjusting device which comprises a handle, an angle wheel and a hose. A rotary shaft is arranged on the handle, one end of the rotary shaft extends into the handle, a pulley is arranged at the end, located in the handle of, the rotary shaft and can rotate together with the rotary shaft, and the angle wheel is arranged at the end, located outside the handle, of the rotary shaft. One end of the hose extends into the handle, an end connecting portion is arranged the other end, a steel wire is arranged in the hose, two ends of the steel wire are fixed to the end connecting portion, and the middle of the steel wire extends into the handle and is connected to the pulley in a wound mode. The angle wheel can drive the pulley to rotate through the rotary shaft, the steel wire is pulled while the pulley rotates, and the bending direction of the hose is controlled. The steel wire arranged in the hose is pulled by turning the angle wheel, and accordingly the purpose of bending the hose is achieved. Visual relevant parts carried during usage of a fiberoptic endoscope are omitted, and the endoscope stomach volume adjusting band curve degree adjusting device is simple in structure, low in cost, convenient to carry and move and very suitable for large-area popularization.

The invention discloses a multifunctional teaching aid rod applied to mathematics teaching. The multifunctional teaching aid rod comprises a first graduated scale and a second graduated scale, a hollow pen cap with an opening in the lower end is connected to one end of the first graduated scale, a first inserting groove is formed in the end, away from the pen cap, of the first graduated scale being inwards cut in the length direction of the first graduated scale, a first sliding rod is slidably connected into the first inserting groove, and a first rotating connector is connected to the end, close to the opening, of the first sliding rod. A conical tip is connected to one end of the second graduated scale, a second inserting groove is formed in the end, away from the conical tip, of the second graduated scale being cut inwards in the length direction, a second sliding rod is slidably connected into the second inserting groove, a second rotating connector rotationally connected with the first rotating connector is connected to the end, close to the opening, of the second sliding rod, and the first rotating connector and the second rotating connector can be retracted into the first inserting groove or the second inserting groove. The multifunctional teaching aid rod can be used as a teaching rod, a straight ruler, a triangular ruler and compasses, is convenient to carry and use, and contributes to improving the teaching efficiency.

The invention discloses an escape device for a high-rise building. The escape device comprises a shell, a first screw, two first fixing blocks, two gears and first limiting blocks; one end of the first screw is mounted on the left side of an inner cavity of the shell through a bearing, and the other end extends out of the right side of the shell; the two first fixing blocks are fixedly installed at the left end and the right end of the rear side of the inner cavity of the shell correspondingly and connected to the outer wall of the first screw in a sleeving mode; the gears are symmetrically installed on the rear side of the inner cavity of the shell through bearings correspondingly and engaged with the first screw correspondingly; the first limiting blocks are fixedly installed in the bearing connecting positions of the gears. According to the escape device for the high-rise building, in actual use, the friction force between a rope and a second limiting block and the friction force between the rope and a first limiting block can be adjusted according to the weight of a user, so that the falling speed of the user is changed, falling damage caused by too high speed is prevented, one end of the rope can be quickly tied to a firm place, time waste caused by manual knotting is avoided, and meanwhile, the knot can be prevented from loosening.

The invention relates to the technical field of traffic, and discloses a friction coupling for a turnout switch machine. The friction coupling comprises a speed reduction shell, an inner gear is arranged on the surface of the speed reduction shell, an output shaft is sleeved with the middle of the inner gear, and friction brake plates are arranged at the outer side of the inner gear. The number ofthe friction brake plates is two, and one ends of the friction brake plates are fixed to a clamping plate shaft of the speed reduction shell. Through the attraction or repulsion effect of a force application structure, the extrusion force of the friction brake plates acting on the inner gear is increased or decreased, so that the purpose of increasing or decreasing the friction force between a friction belt and the inner gear is achieved, the torque transmitted to the output shaft by a motor is increased in a normal state, and when a turnout is blocked, the abrasion of the friction belt caused by the inner gear is reduced, the adjustment frequency of the friction coupling is reduced, the labor investment is reduced, the service life of the friction belt is prolonged, and the production and maintenance cost is reduced.