249results about How to "Easy tension adjustment" patented technology

A crop conditioner includes a frame mounting a bottom fixed roller and a top liftable roller. The top roller is liftable at each end on a pivot member tensioned by a tension link, a tension spring and a bell crank connected between the tension link and the spring. The bell crank is mounted on the conditioner frame for pivotal movement about a pivot axis which lies transversely to a line parallel to the pivot axis of the second roller so that the bell crank extends from the tension link to the tension spring in a direction outwardly of the radial plane of the roller pivot axis. The spring extends upwardly and forwardly from the bell crank pivot at a rear flange of the frame to an adjustment screw of the spring at a top flange of the frame immediately adjacent an adjustment of a bottom stop of the top roller.

A ball game is provided. The ball game has a generally flat surface which allows balls to bounce. The generally flat surface largely resembles a trampoline. In use, the generally flat surface is substantially parallel with respect to the ground. A user stands on solid ground outside a perimeter of the generally flat surface and bounces the ball off the generally flat surface. The height and tension of the generally flat surface may be easily adjusted.

A compound bow comprises a bow handle that a user holds with his or her hand. A pair of bow blades are combined with both ends of the bow handle, of which at least one bow blade is rotatably combined with the bow handle. A pair of pulleys are rotatably combined with respective rear ends of the pair of the bow blades so as to rotate around a rotating axis of each pulley. A bow string extends between the pair of pulleys and is pulled for discharge of an arrow. A blade rotating unit rotates the bow blade and is rotatably combined with the bow handle, in order to adjust or release tension of the bow string by adjusting distance between the pair of the pulleys in the case of controlling the tension of the bow string or disjointing or repairing the bow.

This invention relates generally to a therapeutic medical garment that supports the abdomen or belly of a pregnant or post-partum woman and of either men or women with distended abdomens. The invention relates to an adjustable-support therapeutic undergarment which lifts the abdomen to prevent irritation of a surgical incision or scar in the lower abdominal or groin region such an incision resulting from a caesarian section or a hernia incision. The invention allows proper healing of the incision, and relieves both stress and strain on the scar and friction from the overhanging abdomen.

Various embodiments of a mesh or implant systems are provided. The implants can include one or more anchors, arms and the like. The anchors can include hingeable or patterned finger extension to facilitate tissue penetration and retention. Various tensioning and adjustment mechanisms, devices and methods are further provided for the implant systems.

The invention discloses a sling for a spatial cable structure, which comprises a sling body, an upper-end anchorage connected with the upper end of the sling body, and a lower-end anchor device connected with the lower end of the sling body, wherein the lower-end anchor device comprises a lower-end anchorage, a connecting rod, a base and a revolute pair positioned between the connecting rod and the base, the connection rod is a long rod with a cylinder head on the lower end, the revolute pair is a ring-shaped ball support with an inner spherical surface as the end surface of one end, the base is a tower-shaped body with a step hole, a small upper end and a large bottom end, the end surface of the bottom end of the base is an inclined surface or a plane, the upper end of the connecting rod passes through the step hole of the base and is connected with the lower-end anchorage, the cylinder head on the lower end of the connecting rod is locked on the end surface of the inner spherical surface of the revolute pair in the step hole of the base, and the lower end of the sling body is in anchoring connection with the lower-end anchorage of the lower-end anchor device. The sling can rotate larger angles, move, extend, and be adjusted with the length, and can fully adapt the demand of a suspension bridge adopting spatial cables to the structural form of the sling.

The invention discloses a device used for rolling a battery pole piece at a high speed. The device comprises a control system, two double-station automatic winding and unwinding machines, a band connecting device, a piece storage mechanism and a rolling mechanism. The double-station automatic winding and unwinding machines are arranged at an initial end and a tail end respectively. The band connecting device is arranged on the side face of the output end of a battery pole piece band roll of the double-station automatic winding and unwinding machine arranged at the initial end. The piece storage mechanism and the rolling mechanism are sequentially arranged behind the output end of the band connecting device. The output end of the rolling mechanism is connected with the double-station automatic winding and unwinding machine arranged at the tail end. An automatic roll replacing and band connecting mechanism, the piece storage mechanism and the rolling mechanism are all connected with a control system. According to the device, rolling accuracy can be guaranteed, shutdown is not required in the rolling process, roll replacement and band connection are automatically completed, and therefore automated production is achieved.

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 relates to a mechanism comprising at least one spring (3) for compensating the weight of a closing screen, said spring (3) being fixed, at one of its ends (32), to a ring (6) which is rotatably arranged around a shaft (4) having a circular cross-section. A stop spring (7) which is arranged around the shaft (4) ensures a one-way coupling between the ring (6) and the shaft (4), means (8) being provided for controlling the centripetal effort exerted on said shaft (4) by the stop spring (7).

The invention provides a cage door device and an encoder which is suitable for a cage door motor 4 in the cage door device. The cage door device comprises a door head 3, the cage door motor 4, a circulating system, a guide rail 8, a left hanging plate, a right hanging plate, a left door plate, a right door plate, an anti-theft device 26, a door knife 25, an anti-collision device 15 and a frequencyconverter 17, wherein the circulating system comprises a driving wheel 5, a driven wheel 6, a tensioning device 16 and a transmission belt 7 connected between the driving wheel 5 and the driven wheel6; the left hanging plate and the right hanging plate are hung on the guide rail 8; and the left door plate and the right door plate are hung on the left hanging plate and the right hanging plate. The cage door device is characterized by being provided with an integrated anti-theft door knife device 12 comprising the anti-theft device 26 and the door knife 25, the cage door motor 4 is arranged ona bracket 20 positioned at the front of the door head 3, and the cage door motor 4 directly drives the driving wheel 5 to drive the circulating system to do cyclic reciprocating motion within the width range of the door head 3. The invention also provides the encoder which is suitable for the cage door motor 4 in the cage door device. Compared with the prior art, the invention has the characteristics of compact structure, safe and reliable use, greatly-reduced manufacturing cost, energy saving, environment protection, stable performance; and the anti-collision device is arranged so as to avoid from generating noise caused by hard collision due to the power effect when the cage door device is opened or closed in place. The installation of the integrated anti-theft door knife device effectively prevents passages from pulling the cage door away and generating dangers.

The invention discloses a multilayer carbon fiber cloth tensioning and anchoring device and method for concrete structure reinforcing. The device comprises a fixing end anchorage device, a tensioning end anchoring device and a combined tensioning end anchorage device. The combined tensioning end anchorage device can be split into a wedge-shaped anchoring end and an anchorage device top end. The two ends of multilayer carbon fiber cloth are clamped through the fixing end anchorage device and the combined tensioning end anchorage device, tension is applied to the tensioning end anchoring device through a jack, and a guide rod connected with the tensioning end anchoring device is used for carrying out prestress tensioning and anchoring on the multilayer carbon fiber cloth. The characteristics that carbon fibers are light and high in strength can be fully exerted, the strength utilization rate of the carbon fibers is obviously increased, stress and flexural deformation of the concrete structure are effectively reduced, beam cracking is delayed, the width of cracks is reduced, and the bearing capacity of the structure is further improved.

A compression device can treat edema with a number of curved shells, each having an internal pad. A ligature network employing tensioners is routed across the shells for compressing them. Tensioners on at least some of the shells can separately adjust tension in different portions of the ligature network. The ligature network is (a) releasably mounted on the shells, and (b) repositionable to allow spatial adjustment of compression forces produced by the compression device. By adjusting the routing of the ligature network across the shells, tailored compression forces are provided. With a body part embraced by the padded shells, tension is separately adjusted in different portions of the ligature network to provide different compression forces at spaced positions along the plurality of padded shells.

A method and apparatus for a conveyor tensioning system comprising a main frame with at least one main frame roller pivotally mounted thereto for engagement with a conveyor belt. A moveable frame is engaged with the main frame at an engagement interface such that the position of the moveable frame with respect to the main frame may be adjusted in at least one dimension. The moveable frame also includes at least one moveable frame roller pivotally mounted thereto for engagement with a conveyor belt. The position of the moveable frame with respect to the main frame may be actuated by hydraulic cylinders or other mechanical systems. As the distance between the main frame and moveable frame increases, the tension on the belt also increases.

The invention discloses a dual-layer taping and winding machine. The dual-layer taping and winding machine comprises a winding assembly and a servo motor driving the winding assembly to rotate, and further comprises a first taping assembly and a second taping assembly, wherein the winding assembly comprises a plurality of tension sets, a rotary plate and a main shaft; the tension sets are fixed on the rotary plate; the main shaft is used for supporting the rotary plate and is connected to an output shaft of the servo motor; each of the first taping assembly and the second taping assembly comprises a taping shaft, a motor driving the taping shaft to rotate, and a plurality of swing arms arranged at the periphery of the taping shaft; an inner hole allowing a cable to pass through is axially formed in the taping shaft; the swing arms are axially arranged on the taping shaft; the two swing arms are connected through a positioner; the swing arms are driven by the drive motor to adjust taping tension force through the positioner. The dual-layer winding machine is compact in structure, saves space, improves the production efficiency, and can guarantee electric properties of the cable.

The invention provides a warp knitting machine with an improved structure, belongs to the technical field of machinery, and solves the technical problems that a warp knitting machine in the prior art cannot automatically cut warp knitting fabric and the like. The warp knitting machine with the improved structure comprises a rack, wherein a bobbin used for winding yarn as well as a first conveying shaft and a second conveying shaft which are used for conveying the warp knitting fabric is fixed on the rack; and the first conveying shaft and the second conveying shaft are parallel, are close and are not contacted, a pressing shaft is arranged above a gap between the first conveying shaft and the second conveying shaft and is connected with a lifting positioning mechanism I which can drive the pressing shaft to go up and down and can position the pressing shaft, the outer diameter of the pressing shaft is larger than the gap between the first conveying shaft and the second conveying shaft, and a cutting device which can cut the warp knitting fabric into two parts is arranged between the bobbin and the first conveying shaft. The warp knitting machine has the advantages of capability of automatically cutting the warp knitting fabric, high cutting efficiency and wide application range.

The invention discloses a real-time on-line detection system for tension of a steel wire rope for an elevator. The detection system comprises a cloud server, a sensor, an information collection board, an intelligent decision-making terminal, a hand-held monitor and an elevator system, wherein the sensor monitors the tension for dragging the steel wire rope in real time and online displays a numerical value of the tension received by the steel wire rope, so that all the tension for dragging the steel wire rope is conveniently adjusted to be uniform, the service life of the steel wire rope is prolonged, and the elevator running comfortableness is improved; by monitoring the change of the numerical value of the tension for dragging the steel wire rope in real time, whether there are persons in a car can be determined, and a weighing function of the elevator is realized; the intelligent decision-making terminal receives data, makes a local decision according to set logic, and controls the elevator to emergently stop running or stop running after the elevator stops nearby in an abnormal state, thereby avoiding sudden accidents; and the cloud server collects historical big data, performs comparison, analysis, judgment and depicts a change trend of the tension of the steel wire rope, and if the trend becomes bad, a preventive and targeted maintenance service can be performed, thereby improving a safety coefficient of elevator running.

The invention discloses a visual large vessel boiling experiment device and belongs to the field of energy heat exchange. The visual large vessel boiling experiment device is mainly composed of a support, a heating wire fixing and adjusting mechanism, a water bath heating mechanism, a high-speed camera, a scanning electron microscope and the like. The heating wire fixing and adjusting mechanism is arranged on the support, the water bath heating mechanism is located below the heating wire fixing and adjusting mechanism, a simulation arm support is arranged on the support, the scanning electron microscope is arranged on the simulation arm support, and the high-speed camera and the scanning electron microscope are used for collecting experiment data. The visual large vessel boiling experiment device is suitable for any working medium, the bubble generating process on heating wires and various jet flow phenomena can be directly observed, the relation between the diameter of bubbles on the heating wires and the heat flux can be obtained, and thus a theoretical study basis is provided for studying the boiling heat exchange issue.

The invention discloses a rubber roller belt sander, wherein a long strip-shaped support frame is positioned on a base; a driving wheel can be rotationally positioned at one end of the support frame; a driven wheel can be rotationally positioned at the other end of the support frame; the driving wheel and the driven wheel are arrayed in parallel; a ring-shaped abrasive belt is arranged on the driving wheel and the driven wheel in a sleeving manner; the driving wheel is driven by a motor to rotate; a driven shaft on the driven wheel is inserted in a shaft sleeve at the other end of the support frame; and the driven shaft can be driven by a deviation rectifying adjusting device on the shaft sleeve to rotate around a shaft perpendicular to the axial direction of the driven shaft and the length direction of the ring-shaped abrasive belt. According to the rubber roller belt sander, an adjustment of the axis parallelism of the driving wheel and the driven wheel can be realized, so that the stability of the operation of the abrasive belt can be realized; the tension adjustment of the ring-shaped abrasive belt is convenient, so that the ring-shaped abrasive belt can be adapted to processing of different materials, and the replacement of the ring-shaped abrasive belt is facilitated, the rotation of the whole ring-shaped abrasive belt around an axial line of the driving wheel can be realized, the contact angle of the abrasive belt and a workpiece can be changed, the contact position of the abrasive belt and the workpiece can be changed, and different processing demands can be met.

A balanced stencil foil tensioning frame with a foil alignment fixture removes the need for the complex air / bladder arrangement of conventional systems by pivoting side members to engage foil. With less components, the tensioning frame system is reliable and light weight with few moving parts. In one embodiment, a base member can receive a stencil foil and a frame top can lock into the base member, depressing the edges of the stencil foil. The amount of provided depression can adjust the tension of the foil. In another embodiment, a plurality of tension segments can move in a linear direction to create a uniform foil tension. The alignment fixture can be wall mounted to hold foil in a vertical position. This allows for consistent alignment and attachment of foil to the tensioning frame.

The invention provides a hardware tool abrasive belt polishing machine, which comprises a machine body, a machine frame and a lock rod device, wherein the machine body comprises a machine frame, a lock rod device, a polishing device, a tension regulation device, a guiding device, a driving device and an abrasive belt which are arranged on the machine frame; the vertical rod is vertically arrangedat the upper part of the bottom plate; the lower end of the vertical rod is connected with the bottom plate through a screw bolt; the transverse rod is horizontally arranged at the upper end of the vertical rod; the two ends of the transverse rod are respectively connected with the vertical rod through screw bolts; a reinforcing plate is arranged at one side of the end part of the vertical rod; the vertical rod is connected with the bottom plate and the transverse rod through the reinforcing plate; the slide rod is horizontally arranged at the upper part of the transverse rod. Through the improvement on the hardware tool abrasive belt polishing machine, the hardware tool abrasive belt polishing machine provided by the invention has the advantages that the structure is compact; the assemblyand the installation are easy; the use is flexible and convenient; the polishing angle can be conveniently regulated; the tension degree of the adhesive belt can be conveniently regulated; the use isreliable, so that the problems and defects in the background in the description can be effectively solved and overcome.

A belt sander includes a main frame, a drive roller, a driven roller, a sand belt, and a sand belt replacement apparatus. Thus, the user only needs to rotate the control handle to move the driven roller relative to the drive roller so as to change the distance between the drive roller and the driven roller so that the user can adjust the tension of the sand belt easily and rapidly, thereby facilitating the user adjusting the tension of the sand belt, and thereby facilitating the user mounting and replacing the sand belt.

The invention provides a tension-adjustable two-roller active scutching device which comprises a rack, an integral frame, a transmission mechanism, an upper scutching roller and a lower scutching roller; the integral frame comprises a left fulcrum, a right fulcrum, a left lateral plate, a right lateral plate and a connecting prop; the middle parts of the left lateral plate and the right lateral plate are connected into a rigid integral by the connecting prop; the left fulcrum and the right fulcrum are respectively mounted at outsides of the left lateral plate and the right lateral plate, and respectively propped by a bearing seat and a worm gear reducer; the upper scutching roller and the lower scutching roller are mounted between the left lateral plate and the right lateral plate in symmetry with the connecting prop as the center; the transmission mechanism comprises a decelerating motor, an upper scutching roller gear, a lower scutching roller gear and transition gears; and the decelerating motor and the upper scutching roller gear are connected, the upper scutching roller gear mounted on the upper scutching roller is connected with the lower scutching roller gear mounted on the lower scutching roller via a pair of transition gears. The invention is reasonable in structure, convenient in operation, and simple in tension adjustment, the two rollers have equivalent speed and no tension difference, and the scutching and de-wrinkling effects are good.

The invention discloses a visualized big container experimental method of boiling heat transfer, belonging to the field of energy heat transfer. The visualized big container experimental method of boiling heat transfer is characterized in that an experimental device is mainly formed by a support, a heating wire fixing and regulating mechanism, a water bath heating mechanism, a high-speed camera, a scanning electron microscope, and the like. The experimental method comprises the following specific steps: carrying out device regulation preparation before experiments; then heating working media; beginning experiments after the temperature reaches the set value; carrying out information collection by utilizing the scanning electron microscope and the high-speed camera; then regulating the working conditions and acquiring data information under different working conditions. The experimental method is applicable to experiments of various working media and can be used for directly observing the growth process of bubbles on a heating wire and various jet flow phenomena and obtaining the relation between the diameter of the bubbles on the heating wire and heat flux, thus providing a theoretical study basis for studying the problem of boiling heat transfer.

The invention provides a fabric weft inclination detection method based on image analysis, and belongs to the field of fabric detection. Fabric weft inclination can be easily caused so as to influence the quality of the finished product of fabric as the tension is uneven in the fabric after-treatment technical process such as washing, bleaching and dyeing, so finding a way of automatically detecting the welt inclination in the after-treatment technical process is one of the most difficult problems in dire need of solution in the textile industry; moreover, the photoelectric detection method for weft inclination has the shortcomings of generating dead angle in distinguishing during detecting and bringing low precision in detecting, and is also limited by the category of the fabrics, and cannot be applied to thick fabric or the fabric with inclined textures. Therefore, the fabric weft inclined detection method based on image analysis is provided. The fabric weft inclination detection method comprises the steps of: acquiring the image of a moving fabric by a linear array industrial camera; converting the image of the fabric into the frequency domain by the Fourier transform; carrying out peak-point filter on a magnitude spectrum chart; and finally determining the angle of a weft yarn system, so as to finish the automatic detection of the weft inclination. By adopting the fabric weft inclination detection method provided by the invention, the fabric weft inclination can be automatically detected, so that the quality of the finished product of a textile can be improved.

The present invention provides a wet leather stretching device, including a second bracket (12) provided with a mechanism for adjusting tension of a first belt (17), wherein the mechanism includes: a movable plate (41) coupled to each of left and right side surfaces of the second bracket (12); a support plate (31) coupled to one surface of each movable plate (41); a cylinder (32) having a lower part fixedly coupled to a lower part surface of each support plate (31); a rod (33) protruding a certain length through an upper part of each cylinder (32); a guide end (35) provided on one surface of the movable plate (41) at a distance above the support plate (31); a guide plate (36) connected to the rod (33) and contacting with the guide end (35), and a movable pipe (37) with a predetermined length contacting with the first belt (17).

The invention discloses a cable stripping device for power construction, the device comprises a base, a mounting seat is arranged on one side of the upper end surface of the base, a clamping mechanismis arranged on the mounting seat, and a cutting mechanism and a winding mechanism are sequentially arranged on one side of the clamping mechanism. According to the cable stripping device for electricpower construction, the distance between clamping discs can be conveniently changed through an adjusting screw rod, and the clamping of cables of different sizes is facilitated; the clamping discs comprise inner rings and outer rings which are rotationally connected with each other, so that the continuous transmission during cable stripping is facilitated; a sliding screw rod is matched with a lifting hydraulic cylinder, so that the position of a cutter is conveniently adjusted; an upper winding roller and a lower winding roller are arranged, so that a surface layer and an inner line layer are separately wound; a tensioning roller can be adjusted to ascend and descend by rotating a driving rod, so that the tensioning degree of cable clamping is convenient to adjust; besides, a guide ringwith the adjustable height is arranged so that the cooperation with the tensioning roller is facilitated, and thus the continuous stripping of the cable is enabled to be more stable.