1337results about How to "Guaranteed tension" patented technology

The invention provides a wearable upper limb exoskeleton rehabilitation device, which includes a fixed backboard served as a base; a driver module can make torque force transfer to each joint by Bowden cable; an exoskeleton module of elbow join is used for coupled rehabilitation movement. rehabilitative training of the elbow, coupled rehabilitation of forearm and exoskeleton of the upper arm and the exoskeleton; a mechanical hard limit device for joint, can achieve mechanical hard limit protection for a forearm connecting rod and a upper arm connecting rod; a three direction adjustable adaptive module, the position of joint winch in the shoulder adduction is adjusted to adopt different somatotype of the patients; a shoulder joint module, the shoulder joint module can achieve rehabilitation training for abduction degree of freedom in the shoulder and rehabilitation training of shoulder flexion and extension degree. The Wearable upper limb exoskeleton rehabilitation device makes use of the wearable structure to realize the free movement of patients during rehabilitation training.

The invention mainly aims to provide a variable structure adaptive feed type rope saw for cutting composite pipes with different diameters amphibiously. The rope saw consists of a clamping mechanism, a cutting mechanism, a feeding mechanism and a tensioning mechanism; the clamping mechanism comprises a V-shaped plate, the V-shaped plate is formed by folding two mutually independent half plates, each half plate is connected with respective sliding block, and the sliding block and a guide rail I form a sliding pair; the two half plates fixed on respective sliding blocks can move relatively in the radial direction along the guide rail I; the half plates are connected with a hydraulic cylinder respectively, and the hydraulic cylinder is connected with a control system; and the lower ends of the half plates are connected with clamping claws through fixing pins, and the rear ends of the clamping claws are connected with the hydraulic cylinder. The rope saw is suitable for the pipes with diameters of phi 300 to phi 1,500 millimeters, so the diameter range of the cut pipes is greatly expanded; and meanwhile, different cutting speeds can be automatically adjusted according to different cutting states to adapt the rope saw, and the cutting efficiency is improved.

The invention discloses an abrasive belt grinding device applicable to inner and outer cambered surfaces of blades of aerospace blisk. An X axis transverse feed mechanism, a Y axis transverse feed mechanism and a Z axis longitudinal feed mechanism form a grinding head feed mechanism; an A axis deflection motor, an A axis deflection bracket, a B axis motor, a gear train bracket, a C axis motor, a C axis revolving bracket and the like form a position adjusting mechanism of the grinding head. The abrasive belt grinding device provided by the invention guarantees rigidity of a grinding head mechanism and a work piece clamping mechanism through rational distribution of the grinding head feeding, the position adjustment of the grinding head and the position and angle adjustment of the work piece and through combination of space in six degrees of freedom by a short transmission chain; a contact wheel and an abrasive belt can cut into a narrow gap between two blades of the blisk, so as to ensure the contact between the contact wheel and the work piece to be stable when the contact wheel rotates at a high speed; so that the abrasive belt grinding device can improve the work efficiency, and meanwhile, dimensional accuracy of complex cambered surface of the work piece in processing can be guaranteed, the quality of the molded surface is ensured, the rate of qualified products is improved, the labor intensity of workers is reduced and the management and production costs are lowered.

An automatic tensioning device for belt conveyor is suitable for long-range covneyor or a rubber belt conveyer, of which belt has a large extension rate. It achieves a large regulative range, an accurate control of tension force, and stable adjustment. The system consists of a tension monitor, a hydraulic device and a hydraulic hoist. The tension monitor comprises a detecting cylinder, a pressure sensor, a shutoff valve and a pressure meter. The hydraulic device comprises a pump, a reversing solenoid valve, a overflow valve, a manual valve, a hydraulic one-way valve, a proportional reversing valve, a one-way throttle valve, a one-way valve, a throttle valve, a tank, and oil-way. The outlet of the pump is respectively connected with the tension monitor, the cylinder and the driving circuit of the hydraulic hoist via the one-way valve.

The invention discloses a deformed caterpillar robot which comprises a robot stand and a robot body, wherein robot body is installed on the robot stand; both sides of the robot stand are respectively provided with a set of deformed caterpillar running mechanism; each deformed caterpillar running mechanism comprises a traveling drive shaft, a caterpillar deformed drive shaft, a caterpillar and a deformed oscillating bar mechanism; each traveling drive shaft and each caterpillar deformed drive shaft are arranged on the robot stand in parallel; one end of each deformed oscillating bar mechanism is fixedly connected with each caterpillar deformed drive shaft, and the other end is supported on each traveling drive shaft by a bearing; a drive caterpillar wheel is installed on each traveling drive shaft; driven caterpillar wheels are both arranged on each caterpillar deformed drive shaft and each deformed oscillating bar mechanisms; and each drive caterpillar wheel and all driven caterpillar wheels are meshed with each caterpillar. The deformed caterpillar robot has steady running, high obstacle crossing and climbing capability, simple structure, stable working and reliable control.

The invention discloses a method for producing mask plates of organic electroluminescent displays, which comprises following steps: taking a sheet of magnetic conductive thin sheet steel, utilizing stainless steel etching or laser cutting to open holes on the thin sheet steel to form patterns, flatly spreading a silk screen on the thin sheet steel with the patterns, coating mucilage which is used to stretch the silk screen on the edge of the thin sheet steel, then, removing the silk screen on the region of thin sheet steel patterns, then, stretching the silk screen, taking a frame body, clinging the frame body on the stretched silk screen to form a net frame, tailoring along the outer margin of the net frame after bonding stably, cutting another magnetic conductive sheet steel into an outer frame of the mask plate which is needed, then, connecting the outer frame of the mask plate and the magnetic conductive thin sheet steel in the net frame, then, cutting off the silk screen, shedding the net frame, lastly, cutting off excess sheet steel along the outer margin of the outer frame of the mask plate, and finishing producing the mask plate. The method of the invention utilizes the silk screen to stretch the thin sheet steel, which lowers the production cost and simplifies the technological process, the net frame is more stably connected with the outer frame, the operation is comparatively simpler, and the precision is greatly increased.

The invention discloses a coiled material conveying and tensioning device, which comprises a workbench support (1), and a first guide roller assembly (2), a second guide roller assembly (3), a tensioning guide roller assembly (4) and a tensioning guide roller support assembly (5) which are arranged on the workbench support, wherein the tensioning guide roller support assembly is arranged between the first guide roller assembly and the second guide roller assembly; the tensioning guide roller assembly is erected on the tensioning guide roller support assembly; the tensioning guide roller assembly is positioned below the first guide roller assembly and the second guide roller assembly; the first guide roller assembly comprises a first guide roller; the second guide roller assembly comprises a second guide roller; the tensioning guide roller assembly comprises a tensioning guide roller; and a coiled material passes through the first guide roller, the tensioning guide roller and the second guide roller in turn to reach a tension state. The coiled material conveying and tensioning device has a simple structure and has the advantages of high response speed and capacity of automatically adjusting the tension of the coiled material at a feed end.

The invention relates to textile printing equipment, in particular to a digital ink-jet textile printing machine capable of personalized jet printing. The digital ink-jet textile printing machine comprises a main driving roller used as a driving roll, a material feeding device, a material receiving device, a guide rail unit and a nozzle set unit, wherein the main driving roller, the material feeding device and the material receiving device are rotatably arranged between two parallel wall plates; the material receiving device and the material feeding device are respectively arranged at both sides of the main driving roller and parallel to the main driving roll; the guide rail unit is arranged on the wall plates at both sides with synchronous lifting; and the nozzle set unit is arranged above the main driving roller and can be arranged on the guide rail unit in a reciprocating way. The digital ink-jet textile printing machine has the advantages of good synchronism, high jet printing precision, wide jet printing material breadth, no pollution of jet printing materials and devices, long service life, wide application range, and the like.

The invention discloses a timed passive air sampler, which comprises an air sampler main body, wherein the air sampler main body comprises a packaging barrel with an opening at the top, an adsorbent cage which is sheathed in the packaging barrel, a blocking pillar, an electromagnet and a timing driving circuit; a timing beginning sensor and a mounting bracket are arranged on the side wall of the packaging barrel; a rubber plug matched with the top of the packaging barrel is arranged at the top end of the adsorbent cage; a return spring is arranged between the bottom of the adsorbent cage and the bottom of the packaging barrel; a bayonet which can be pulled out to expose the packaging barrel and a sensing body corresponding to the timing beginning sensor are arranged on the adsorbent barrel; the blocking pillar is arranged on the mounting bracket and can move in the radial direction of the packaging barrel and be matched with the bayonet; the electromagnet is arranged on the outer wall of the bracket of the packaging barrel and can control the blocking pillar to be departed from the bayonet; and the timing driving circuit is connected with the timing beginning sensor and the electromagnet. The timed passive air sampler can implement the accurate automatic control of the sampling time, automatic packaging, and effectively improve the sampling accuracy of the passive air sampler.

The invention relates to a pneumoperitoneum-free peritoneoscope suspending type abdominal wall puncture device, and overcomes the defect that secondary trauma occurs easily to patients by using a kirschner pin to puncture into abdominal walls to suspend the abdominal walls. The puncture device comprises a sleeve and a plurality of supporting arms arranged on the sleeve in a central radial shape, wherein a deformation portion is connected to the end portion of the sleeve and connected with the supporting arms; and one ends of pull ropes are fixed on the end portion of the supporting arms, lugs with rope holes are arranged on the sleeve away from the deformation portion, and the other ends of the pull ropes penetrate through the rope holes in the lugs to be fixed on the outer portion of the abdominal wall. A supporting surface is arranged after the supporting arm is opened, and a barrel-shaped space is formed after the supporting arm is suspended, so that enough surgical fields are provided during the surgery; and the supporting arm of the puncture device is inserted from a cut of the abdominal wall and is opened gradually, so that the kirschner pin is not needed to perform puncture and suspension, the secondary trauma is prevented, and the puncture device is helpful for alleviating traumatic pains of patients.

Apparatus, systems and methods are provided for solar awnings or canopies that include rigid solar modules, for example photovoltaic cells or panels. The awnings have solar modules or panels stacked together substantially vertically (e.g., each module is oriented vertically with respect to the next module). The solar modules in the stack are interconnected to each other, such that each solar module is connected electrically and mechanically to adjacent solar modules. The first solar module in the stack of modules is fixed to one end of the base of the awning. The base of the awning is typically mounted to a building, vehicle, mobile home, or other appropriate structure. The last solar module in the stack is attached to a lead arm of the awning. The lead arm moves back and forth (e.g., away and toward) from the base of the awning to enable the expansion or retraction of the awning.

The invention relates to an inkjet printing device, in particular to a synchronous double-face digital inkjet printing machine which can realize individual inkjet printing without printing width limitation. The device comprises a wall plate, a cloth takeup and placing device which is arranged on the wall plate, an auxiliary inkjet printing roll with the same diameter as a main inkjet printing roll is alternately arranged with the main inkjet printing roll between the wall plates, and the auxiliary inkjet printing roll is driven by the main inkjet printing roll through a material to be printed; the printing material winds the main inkjet printing roll and the auxiliary inkjet printing roll with the front face and the rear face contacting the main inkjet printing roll and the auxiliary inkjet printing roll respectively, and a bearing plate is arranged below the material to be printed between the inkjet printing rolls; one sides of the main inkjet printing roll and the auxiliary inkjet printing roll are equipped with an upper jet head set and a lower jet head set which can reciprocate and an ink supply larry. The jet head sets can horizontally reciprocate for inkjet printing, can print wide printing materials without limitation by the width of the jet head sets; the material to be printed always wind the inkjet printing rolls at the front printing point and the rear printing point without warping and buckling, and the jet heads get close to the material to be printed; the main inkjet printing roll drives the auxiliary inkjet printing roll, which ensures the inkjet printing precision of the two faces.

The invention provides a full-scale-movement linear circulating accelerated loading test system. The full-scale-movement linear circulating accelerated loading test system comprises a machine frame, a guide rail, two or more rolling wheel sets and two chain transmission pairs, wherein a front walking and guiding wheel and a back walking wheel are fixed to the lower part of the machine frame through a lifting mechanism; the guide rail is arranged on the machine frame; the upper loading surface of the guide rail is a linear section; the lower loading surface of the guide rail is shaped like a boat bottom; the two ends of the upper loading surface and the lower loading surface are connected in smooth transition through curved sections; the guide rail adopts a box-type structure and is internally filled with a shock-absorbing material; each rolling wheel set comprises two loading wheels and a rolling wheel; the rolling wheel is positioned between the two loading wheels and is coaxial with the loading wheels. The full-scale-movement linear circulating accelerated loading test system adopts a design scheme that the chain transmission pairs drive the rolling wheel sets, a chain and the rolling wheel sets are assembled together through chain pin shafts and connecting components, and the axes of wheel axles of the rolling wheel sets are vertical to and intersected with the longitudinal centerline of the chain; the full-scale-movement linear circulating accelerated loading test system is simple in structure, high in reliability and low in using cost and maintenance cost; the distance from the loading wheel to the rolling wheel is small, the stress condition is good, noise is low, and the efficiency is high.

The invention relates to a tension adjusting mechanism for a copper foil surface treating machine; an upper bracket is fixed on the upper surface of a lower bracket; a guide roller is arranged in the middle of the upper surface of the lower bracket; a counterweight roller is positioned at one side of a tension adjusting roller and below the longitudinal beam of the lower bracket; the counterweight roller is hung at one end of a steel wire rope by virtue of fixed pulleys; the tension adjusting roller is positioned at the other side of the counterweight roller and above the longitudinal beam of the lower bracket; the tension adjusting roller is arranged on guide rod fixing seats positioned on the upper surface of the lower bracket; the pair of fixed pulleys are respectively arranged on the upper surface of a longitudinal beam of the upper bracket; the pair of guide rod fixing seats are respectively positioned on the upper surface of the lower bracket and the lower surface of the longitudinal beam of the upper bracket; and the positions of the two guide rod fixing seats correspond to each other. The tensile force generated by the gravity of a counterweight block is direct, and a copper foil is ensured to be tensioned since the change of the tensile force generated by the instant relaxation and tension of the copper foil can be made up by the movement of the tension adjusting roller at any time, so that the tensile force of the rolled copper foil is guaranteed to be constant. The tension adjusting mechanism has the characteristics of being simple in processing and installing as well as simple and convenient to operate, control and use.

The invention relates to a stable sleeve-dropping method for a moveable sleeve of a hot milling machine and belongs to the technical field of steel rolling. According to the method, a sleeve-dropping controller controls a sleeve-dropping process of a rear moveable sleeve according to the following steps: tracking the position of a strip steel tail; confirming a sleeve-dropping position; establishing a sleeve-dropping angle control function; and lastly, after detecting and confirming that the strip steel tail reaches the confirmed sleeve-dropping position, starting a moveable sleeve rod and simultaneously controlling a sleeve-dropping angle of the moveable sleeve rod according to the sleeve-dropping angle control function till the moveable sleeve drops to the position as high as a rolling level. According to the method, by organically considering a frame driving transmission speed together with the moveable sleeve motion control, in the process of slowly digesting the sleeve quantity, a moveable sleeve roller keeps a tensile force on the strip steel till the moveable sleeve completely drops off, and the drifting phenomenon in a throwing process is prevented while a hollow sleeve isprevented from being formed, thereby achieving the purpose of stably dropping the sleeve.

The invention provides a rock tensile test device under a confining pressure effect and a test method thereof. The device comprises a component I, a component II, a connecting plate and a base plate, wherein the component I is equipped with a slide rail; the component II is equipped with a slide slot; under the restricting effect of the slide rail and the slide slot, the component II only can move along the vertical direction, and meanwhile, the pressure on a test machine is converted into a pull force for a sample; and the ball twisting form connection of a pull head and a cross beam can guarantee the stress acting on the center of the sample. The rock tensile test device provided by the invention has a simple structure, is reliable in test result, is capable of performing a rock tensile test under the confining pressure effect on a present tri-axial test machine, and is capable of greatly saving the test cost.

The invention relates to an oscillating buoy type ocean wave power generating device. The oscillating buoy type ocean wave power generating device comprises a wave power absorbing device which floats on the sea, a supporting device which is connected with the wave power absorbing device by a sliding device, a conversion device and an output device which is connected with the conversion device. The supporting device comprises an upper supporting frame and a lower supporting frame which are arranged in parallel and with same axle center. The upper supporting frame and the lower supporting frame are both mounted on an ocean column in a sleeving manner. A main shaft of the conversion device is connected with a generator rotary shaft of an input device. According to the device, the up-and-down reciprocating motion of wave can be converted into the rotation of the main shaft through sprocket chain transmission. The main shaft is connected with a energy storage flywheel, so that an electric generator can run stably during the conversion of the ascending and descending of the wave power absorbing device under the action of the wave. The continuity of power generating can be guaranteed, so that the stability of power generating can be guaranteed.

The invention relates to the technical field of automatic adhesive tape attaching, in particular to a double faced adhesive tape attaching mechanism and double faced adhesive tape attaching equipment.The double faced adhesive tape attaching mechanism comprises a rack. The rack is provided with an adhesive tape putting wheel for loading double faced adhesive tape, an adhesive tape pressing wheel for keeping the double faced adhesive tape to be attached to a workpiece, a storage wheel for rolling release paper and a pressure maintaining mechanism for exerting pressure on the workpiece. The adhesive tape pressing wheel presses the adhesive tape to the workpiece, the movement of the workpiece drives the adhesive tape pressing wheel to rotate, and the adhesive tape pressing wheel drives the adhesive tape putting wheel to rotate through the double faced adhesive tape; and the adhesive tape putting wheel is connected with an adhesive tape putting belt wheel, the storage wheel is connected with a storage belt wheel, the adhesive tape putting belt wheel is connected with the storage belt wheel through a conveyor belt, and the adhesive tape putting wheel drives the storage wheel to rotate through the adhesive tape putting wheel and the storage belt wheel. The double faced adhesive tape attaching equipment comprises the double faced adhesive tape attaching mechanism. By means of the double faced adhesive tape attaching mechanism and the double faced adhesive attaching equipment, the technical problems that in the prior art, debugging is difficult and the cost is high are solved.

The invention relates to rayon and polyester filament blended spinning technology. The technology is characterized by including the following steps: 1) placing polyester filaments in a water steaming box for steaming at the water temperature of 85-100 DEG C for 80 minutes; 2) disposing the polyester filaments treated in the step 1) under the natural state for presetting for 10-20 hours; 3) measuring high limit in stretchability of rayon, namely a value of the maximum appliable pressure to the rayon; 4) adopting a water-jet loom for performing blended spinning on the rayon and the polyester filaments with the maximum pressure value. The high limit in stretchability of the rayon, namely the value of the maximum appliable pressure to the rayon, is measured firstly, and stretching resistance capability of the rayon is lower than that of the polyester filaments, so that tension of the rayon and the polyester filaments can be guaranteed within a bearable range by blending with the value of the maximum appliable pressure to the rayon, and both the rayon and the polyester filaments are less prone to breakage.