179results about How to "Adjust tension" patented technology

Described is a drum foot pedal with a tension adjuster for adjusting the tension of the spring and corresponding return action of a beater. The device includes a foot pedal and a beater bracket operably connected with the foot pedal such that the beater bracket is actuated in response to force applied to the foot pedal. A rocker component is attached with the beater bracket such that rotational motion of the beater bracket causes a rotational motion of the rocker component. A swivel component is connected with the rocker component. Further, a spring is attached with the swivel component for biasing the beater bracket to force a return action of a beater when force is removed from the foot pedal. Finally, a spring tension adjuster connected with and between the swivel component and spring, the spring tension adjuster operable for allowing a user to selectively adjust tension of the spring.

The invention discloses a multifunctional critical-current uniformity non-destructive and continuous detection device of a superconducting band material. The multifunctional critical-current uniformity non-destructive and continuous detection device is characterized in that a pay-off disc and a take-up disc are respectively arranged above the left upper part and the right upper part of an opened Dewar bottle which contains liquid nitrogen; the pay-off disc, the take-up disc and the Dewar bottle are respectively arranged in a sealing box; the Dewer bottle is internally provided with a guide wheel I, a guide wheel II, an excitation device, a magnetic-field measuring instrument and a guide wheel III in sequence from left to right; a height-adjustable top guide wheel is also arranged between the guide wheel I and the guide wheel II; an encoder is arranged above the left side of the guide wheel I or the right side of the guide wheel III of the Dewar bottle; and the excitation device, the magnetic-field measuring instrument, the encoder, a laser range finder I and a laser range finder II are respectively and electrically connected with a monitoring and controlling system. The multifunctional critical-current uniformity non-destructive and continuous detection device disclosed by the invention has the advantages that on the basis of testing the critical-current uniformity of the superconducting band material in a non-contact and continuous manner, the length of the band material also can be measured, the destructed position is accurately positioned, the change of the characteristic of the critical current of the band material can be tested when the tension and the bending degree are variable, and the destruction to the superconducting band material is less in testing.

The inventions relates to an apparatus, in particular for a screen-printing machine, for measuring tension in a printing screen in a frame, characterized in that a holder for the frame (1) has holder bars (3a, 3b, 3c, 3d) each formed of a plurality of sections (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . , ) each provided with a respective sensor (6) for measuring tension. The invention furthermore relates to a method, in particular for a screen-printing machine, for measuring tension in a screen in a screen frame, characterized in that a screen (2a) mounted in a frame (1) is mounted in a holder (3) having holder bars (3a, 3b, 3c, 3d) each formed by a plurality of sections (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . ) each provided with a respective sensor (6) that measure forces between the respective section (3a1, 3a2, . . . , or 3b1, 3b.2, . . . , or 3c1, 3c2, . . . , 3d1, 3d2, . . . ) and the frame (1).

The invention discloses a multichannel online eliminating conveying belt. The multichannel online eliminating conveying belt comprises a rack (1), an adjustable guide block (2), a chute guide rail (3), a curved chute guide rail (4), a product output adjustment block (5), a plurality of transmission scrapers (6) and a driving mechanism, wherein the adjustable guide block (2) is used for products from a plurality of lines of packers to enter, and the driving mechanism is used for driving the transmission scrapers (6); an eliminating device is arranged below the chute guide rail (3), and the products are driven by the plurality of transmission scrapers (6) along first chutes (2.1), fifth chutes (17.1), second chutes (3.1) and third chutes (4.1) and are discharged from fourth chutes (5.1) in parallel. The multichannel online eliminating conveying belt is automatic equipment and has the advantage of high weight precision, multichannel products can be simultaneously weighed on the same conveying belt, and the products of which the weight is unqualified are completely eliminated.

The invention discloses a supply device used for macromolecule roll goods production. The supply device comprises a discharge mechanism, a discharge buffer mechanism and a collection mechanism arranged sequentially along the conveying direction of macromolecule substrates. The discharge mechanism can automatically correct the position of a discharge rack, and no deviation is ensured when the macromolecule substrates are conveyed to the subsequent procedure. The discharge buffer mechanism can automatically adjust tension degree of the macromolecule substrates, and an alarm can be triggered if the macromolecule substrates are too loose or too tight, so that operators can know relevant faults in time. The collection mechanism is provided with an operating platform used for collection, a pre-storage mechanism is arranged under the operating platform in advance, and the pre-storage mechanism can prestore a certain quantity of macromolecule substrates. In addition, the prestored macromolecule substrates can be distributed slowly for later use when spliced, the system is not halted during collection, continuous of the integral system is ensured and production efficiency is improved.

The invention discloses a solar cell array simulation device comprising a frame, an orientating mechanism, a suspension gear, a gap hinge, solar cell array sailboards, a swinging mechanism and a unfolding mechanism, wherein the orientating mechanism is arranged on the side part of the frame; the swinging mechanism is arranged on the orientating mechanism; the suspension gear is arranged on the top of the frame; the suspension gear and the orientating mechanism are connected with the solar cell array sailboard; the gap hinge is arranged between the solar cell array sailboards; and the unfolding mechanism is arranged on the solar cell array sailboards. According to the solar cell array simulation device, the kinematic characteristics for unfolding a solar cell array under different driving parameters can be tested, and the unfolding of the solar cell array under the conditions of different hinge gaps and various mechanical faults can be simulated.

The invention discloses a winding and release device of a communication engineering cable. The winding and release device comprises a base, and supporting pillars are mounted on the upper surface of the base; a rotating shaft is mounted between the two supporting pillars through bearings; the rotating shaft penetrates through the center of a winding wheel and is fixedly connected with the windingwheel; a first chain wheel is fixedly connected to the rotating shaft; a guide rail is mounted on the upper surface of the base; a sliding groove is formed in the guide rail; screw rods are rotatablyconnected to the two sides of the sliding groove; the screw rods are in threaded connection with mounting supporting lugs of the lower side of a guide mechanism; the guide mechanism comprises a U-shaped mounting base; a first guide wheel is mounted on the right side in the mounting base; a guide rod is connected to the left side of the mounting base in a sliding manner; a second guide wheel is fixedly connected to the right end of the guide rod; and a first spring is arranged on the guide rod in a sleeving manner. According to the winding and release device, a wound cable is compact and ordered and is prevented from being tangled, during cable release, the winding wheel driven by a first motor rotates reversely, operation is effort-saving and convenient, and efficiency is improved.

The invention provides an accurate butting and rapid locking joint for pipelines. The accurate butting and rapid locking joint for the pipelines comprises a stepped flange, a sealing gasket and more than one buckle-type locking assembly, wherein a bulged cylindrical pin is arranged on the end surface of a large-diameter end of the stepped flange, the sealing gasket is installed on the cylindricalpin in a sleeved manner, and makes contact with the end surface of the large-diameter end of the stepped flange, and a small-diameter end of the stepped flange is used for being fixedly connected withone pipeline; and the more than one buckle-type locking assembly is uniformly fixed to a platform in the outer circumference of the large-diameter end of the stepped flange, the end surface of the large-diameter end of the stepped flange makes relative contact with the end surface of the outer side of the butted pipeline flange, the cylindrical pin forms clearance fit with an unthreaded hole of the butted pipeline flange to realize butting, and meanwhile, locking is realized through the matching of the buckle-type locking assembly and the end surface of the inner side of the butted pipeline flange. The accurate butting and rapid locking joint for the pipelines is capable of realizing accurate butting and rapid locking between pipelines, saving the labor, and increasing the efficiency.

The invention discloses an oiling device for waterproof coiled material. The oiling device comprises a box body, a partition plate is arranged in the box body, and the inner cavity of the box body isdivided into an oil coating cavity and a heating cavity by the partition plate; a tightening roller, an oil coating roller, a first cloth supporting roller, a second cloth supporting roller, an auxiliary oil coating roller and a fixed-thickness opposite compression roller are sequentially arranged in the oil coating cavity; the tightening roller is connected with a first telescopic device; the oilcoating roller is connected with a second telescopic device; a laser thickness gauge is arranged between the first cloth supporting roller and the second cloth supporting roller; the auxiliary oil coating roller is connected with a third telescopic device; a top plate is arranged at the top of the box body, and a waste gas collecting cover is arranged above the top plate. According to the oilingdevice, the thickness of a coating can be detected, and the thickness of the coating can be adjusted from thin to thick; the tightness of the oil coating coiled material can be adjusted; the oil coating roller can ascend and descend according to the level change of oil, the oil is utilized to the maximum, and unnecessary oil waste is avoided; and harmful gas emitted by the oil in the oil coating process is collected to avoided to damage the health of workers.

The invention relates to the technical field of cable processing, in particular to a cable twisting process and a twisting device thereof. The twisting device comprises a driving assembly and a wire twisting assembly, and according to the movement direction of a cable, the driving assembly is located at the movement head end of the cable; the driving assembly comprises a supporting plate, a main driving motor and a main shaft, the main driving motor is fixedly installed at the front end of the supporting plate and connected with the front end of the main shaft, and the tail end of the main shaft is connected with the wire twisting assembly; the wire twisting assembly comprises a front winch, an untwisting unit, a rear winch and a twisting device, a first through connecting hole is formed in the middle of the front winch, a second through connecting hole is formed in the middle of the rear winch, the main shaft, the front winch and the rear winch are in synchronous transmission connection, and an untwisting unit is arranged between the front winch and the rear winch. The process and the device are used for solving the problems that in the prior art, a device is not suitable for themanufacturing of cable bundles with many winding wires, and the quality of stranded cables can be affected if the tension of a single wire is changed in the stranding process.

An adjustable tree stand includes a support unit that includes a support platform having two lateral parts, and that further includes first and second mounting structures, each mounted to a corresponding one of the lateral parts of the support platform. The adjustable tree stand further includes a cable unit that includes a cable, a first attachment member connected to one end of the cable, and a second attachment member connected to the other end of the cable for releasably coupling with the second mounting structure.

The adjustable tree stand also includes a control unit including a threaded rod mounted non-rotatably to the first mounting structure, and a slide seat connected to the first attachment member of the cable unit and coupled movably to the first mounting structure for sliding movement therealong.

To provide a motor-driven sliding variable resistor having reduced in variation in working speed when a motor is driven and in the sense of operation when it is manually operated, and capable of maintaining performance for a long period of time. The resistor is provided with a frame 1 having a motor 2 attached on its one end; a driving pulley 3 coupled to a rotary shaft 2a of the motor; a driven pulley 5 arranged on the other end of the frame; a circular belt 6 stainedly hung over between the driving pulley and the driven pulley; and a variable resistor 8 attached to the frame so that a resistance value is adjusted by the movement of a moving body 7 coupled to the belt in the longitudinal direction of the frame. A movable member 4 movable in the longitudinal direction of the frame is provided at the other end of the frame, a pillar 11 for pivotally supporting the driven pulley, an attaching portion 4e is formed on a position different from the position where the pillar is fixed to the movable member, and the movable member is attached to the frame at the attaching position.

The invention relates to the field of sugarcane seed stem production equipment, and particularly discloses a multifunctional sugarcane seed stem detection device which comprises a conveying device, an end cutting device, a section cutting device, a curvature screening device, a bud section screening device and a feeding hopper. According to the multifunctional sugarcane seed stem detection device, the end cutting device and the section cutting device are arranged on the conveying device, end cutting and section cutting operation can be conducted on sugarcane stems respectively, and after end cutting, through the curvature screening device, sugarcane with the large stem curvature can be detected and automatically removed; after the sugarcane seed stems are cut, the bud sections of the cut sugarcane seed stems are detected through the bud section screening device, the seed stems with the bud section quality not meeting the requirement are automatically removed, manual screening and selection are not needed after the sugarcane seed stems are processed, the production quality of the sugarcane seed stems is guaranteed, and the production detection efficiency is improved.

The invention discloses a device for accurately correcting a polymeric membrane. The device comprises a foundation, two support frames of which the lower parts are provided with guide wheels, a support pillar which is arranged between the two support frames, and a main roller and a support roller of which left and right ends pass through two support frames to ensure that the polymeric membrane can pass through the main roller and the support roller; the foundation is provided with a guide rail slot which is used for arranging the guide wheels and ensuring the guide wheels move left and right; the foundation is provided with a gas oil generator which is connected with a polymeric membrane swinging monitoring device; the foundation is fixedly connected with a hydraulic drive device which is controlled by the gas oil generator; and an output end of the hydraulic drive device is fixedly connected with the support frames. The device has a simple structure, can dynamically, accurately and timely adjust the deflection and tension of the polymeric membrane material in a transferring process, and can be widely applied to preparation processes of various membrane materials, and other electric devices are not needed.

The adjusting device includes a plate spring and/or a tension spring. Elastic force generated from the plate spring or from the combination of the plate spring and the tension spring makes bending ofthe driving belt locally so as to maintain a proper tensile force. Thus, it is easy to adjust tension as well as to install or disassembly-driving belts when assembling maintaining or adjusting operations are carried out.

The invention discloses a discharge mechanism of a steel bar truss forming machine. The discharge mechanism comprises a perform rack (20), a steel bar output guide seat (1), a rotating column (19) which is arranged on the lower end of the perform rack (20), and a linkage device, wherein, the rotating column (19) is rotatably connected with a frame (16); and by means of the linkage device, the perform rack (20) rotates when the steel bar output guide seat (1) rotates when outputting steel bars, and the perform rack (20) stops when the steel bar output guide seat (1) stops outputting the steel bars. The discharge mechanism of the steel bar truss forming machine and the steel bars can stop and work synchronously, and the perform rack (20) does not rotate when the discharge mechanism does not work.

A drill press has variable speed drive via belts on stepped pulleys that transfer rotational force from the motor to the drill press spindle. Three stepped pulleys connected by two belts are provided in the example. A belt tension roller is bears against one of the belts to provide tension for effective power transfer from the motor to the spindle. The belt tension roller is adjustable along an arcuate slot in an anchor plate and is fastenable in position by an adjustment knob on the belt tension roller. The middle pulley is mounted to vary its position so that tension adjustments on one belt by the belt tension roller result in tension adjustments on the second belt as well.

A cable hanger includes a base having an opening defined to stably sleeve on a tube of a bicycle and an adjust unit connected to the base. The base has a tongue outwardly extending therefrom and a through hole defined in the tongue. The adjust unit comprising an adjust base and an adjuster is partially mounted in the through hole. The adjust base is mounted on the tongue and has a hole aligned with the through hole for receiving the adjuster. The adjuster has a through hole aligned with the through hole in the tongue for adapting a cable. The cable passes through the through holes in the adjuster and the tongue. A tension of the cable is adjusted by a movement of the adjuster relative to the tongue.

The invention discloses a tree stabilizing device for forestry planting, and belongs to the technical field of forestry protection equipment. The tree stabilizing device includes locking case bodies,first annular plates and a trunk; the two ends of the first annular plates are fixedly connected to limit plates; the limit plates are slidingly connected to sliding plates; the end, away from the limit plates, of the sliding plates are fixedly connected to second annular plates; airbags are arranged between the second annular plates and the first annular plates; the two ends of the first annularplates are provided with clamping plates, and the clamping plates are provided with threaded holes; the threaded holes are in threaded connection with first threaded rods; and stabilizing ropes are connected between winding wheels and the first annular plates. Through the mutual cooperation of the airbags and second springs, a certain buffering can be achieved when a tree shakes; and through the mutual cooperation of the winding wheels and non-return ratchet wheels, the tension of the stabilizing ropes can be flexibly and rapidly adjusted, therefore, supporting and fixing effects can be greatly improved, and the survival rates of transplanted trees can be greatly enhanced.

The invention discloses a roller device. The roller device is composed of a plurality of sub-roller units and a mounting part, and the sub-roller units are mounted on the mounting part; each sub-roller unit comprises a mounting seat, and the mounting seat is mounted on the mounting part; supporting spacers are mounted at the two ends of each mounting seat, and the supporting spacers are rotationally mounted on the mounting seat or the mounting part; a leather sheath roller is mounted between the supporting spacers and is driven by a motor to rotate on the supporting spacers; and an adjusting device is mounted on the mounting seat and is used for driving the supporting spacers to rotate along the mounting seat so as to adjust the position of the leather sheath roller. According to the requirements of fabrics, the pulling force of front and rear garment pieces can be adjusted when a garment is woven; and the fabric can be selectively drawn according to the requirements of the fabric.

The invention discloses a medical multifunctional treatment couch for psychiatry department. A patient lying on a surface of a couch body is fixed through two fixing bands, sliding chutes are used forproviding sliding spaces for sliding blocks, and the legs of the patient can be fixed on support plates through the cooperation of elastic bands and fixed hooks; the sliding blocks are connected withthe couch body through spring sets to provide a certain resistance for the leg exercise of the patient, thereby reaching the aim of helping the patient performing leg rehabilitation exercise; the space for the vertical movement of the inserted links are provided through blind holes, handles and the tray are connected through pulling ropes, and the weight of the tray is increased through a balancing weight, the pulling force on the handles by the tray is changed to provide a certain resistance for the arm exercise of the patient, thereby reaching an aim of helping the patient performing arm rehabilitation exercise. Through the medical multifunctional treatment couch disclosed by the invention, the rehabilitation training of the patient can be performed on the couch while the normal use function of the treatment couch is influenced, and the treatment couch is suitable for patients with different muscle conditions since the resistance is adjustable, and can provide convenience for the patient.

The invention specifically relates to a high-efficiency grain conveying system. The system comprises a rack, two driven rollers which are connected to two sides of the rack, a fixing bracket which isarranged at the bottom part of the rack, a driving roller which is connected to the fixing support, a conveyor belt which is connected to the outer parts of the driven rollers and the driving roller,a control cabinet which is arranged at the side part of the rack, and a discharging port which is formed in one side of the bottom part of the rack, wherein the rack is formed by combining a pluralityof side plates which have the same structure and are connected through bolts, and supporting rods which are connected among the side plates; the side plates are of groove shaped structures; a sealingcover is connected to the top surface of the rack; a feeding bucket is arranged at one side of the sealing cover; a feeding sensing device is connected into the feeding bucket; a driving wheel is arranged at the bottom part of the front end of the rack; a rear wheel is arranged at the bottom part of the rear end of the rack; a lifting device is connected between the rear wheel and the bottom partof the rack; a first motor is arranged on the fixing support; and conveyor belt deviation adjusting devices are arranged at two outer sides of each driven roller.

The invention discloses a conveying device for material carrying. The conveying device comprises a fixed support and fixed kickstands; a moving support is glidingly mounted on the fixed support through a sliding rod; rotating wheels are rotationally mounted at one end of the fixed support and one end of the moving support; a conveying belt is mounted on the rotating wheels in an expanding manner;an adjusting box is laid and mounted at the bottom of the fixed support; the conveying belt penetrates through the adjusting box; the fixed kickstands are fixedly mounted on the fixed support; movingkickstands are fixedly mounted on the moving support; and rolling wheels are rotationally mounted on the moving kickstands. The conveying device is simple in structure and convenient to operate; the length of the conveying device can be adjusted effectively, so that the applicability of the conveying device is improved, and then multi-layer utilization of resources is realized; during use of the device, the length and the tension of the conveying belt are adjusted effectively, and the lengthening action of the device is not affected by the conveying belt.