69results about How to "Equal force" patented technology

An electrically actuated aircraft brake system and method which provides for brake wear measurement, brake running clearance adjustment, ram position-based control and improved construction and operation. Brake wear and running clearance measurement are obtained by analyzing the output of position sensing circuitry. The position sensing circuitry, preferably including a LVDT position sensor, is also used to determine braking load, a brake controller including circuitry for effecting displacement of one or more reciprocating rams to load a brake disk stack by a predetermined amount based on a present displacement value of the position signal obtained from the position sensor. The position sensor preferably includes a LVDT transducer connected between the reciprocating ram and a brake housing, and the motive device preferably includes a servo motor. Also provided is an actuator housing including a guideway for each ram, the guideway and ram having the same polygonal cross-section, whereby the ram nut is guided and restrained from rotation by the guideway as it is translated by a ball screw in threaded engagement with the ram nut for selective movement into and out of forceful engagement with the brake disk stack for applying and releasing braking force on a rotatable wheel. An electric motor is drivingly connected to each ball screw by a first gear integral with the ball screw, a second gear in mesh with the first gear, and a pinion on a rotating drive shaft of the electric motor.

The invention discloses a peeling testing device and a testing method thereof. The peeling testing device comprises a bottom plate, wherein a guide track is mounted on the bottom plate; a moving plate is connected with the guide track; a tension column of a tension machine is arranged above the bottom plate; a connecting base is mounted at the top of the tension column; the connecting base is connected with a connecting plate; a coiling disc is mounted at the other end of the connecting plate; one end of a guide wire is connected with the coiling disc; the other end of the guide wire is connected with the moving plate; a clamp is arranged below the tension column; a pressing plate is arranged on the moving plate. By adopting the peeling testing device, overall peeling force is always conducted in an axis position of a test part, the moving plate is moved forwards at a uniform velocity same as that of the tension column while the test part is peeled along with the action force, then the T-shaped peeling testing process is achieved, T-shaped peeling is accurately achieved, and the interface bonding properties are effectively detected; the peeling testing device is simple in structure, good in practicability and easy to popularize.

The invention discloses rapid forming equipment for plastic deformation processing (such as drawing, undulation and ribbing) of a sheet material. An isobaric threaded locking multi-contact rapid forming die is characterized in that after multi-contact pressing heads of a lower die is used for copying a prototype workpiece, the sheet material receives isobaric pressure applied by multi-contact pressing heads of an upper die, so that the sheet material is forced to deform along the profile of the lower die to produce a product. The isobaric threaded locking multi-contact rapid forming die belongs to the field of material forming and control engineering of mechanology, and comprises a four-guide-post die-set main structure, 1410 contact pressing heads, isobaric seal oil cylinder components, 1410 contact pressing heads and threaded occluded locking devices, wherein the 1410 contact pressing heads and the isobaric seal oil cylinder components are distributed at the upper die in an arrayed manner; the 1410 contact pressing heads and the threaded occluded locking devices are distributed at the lower die in an arrayed manner; and threaded structures are arranged at the tail ends of the 1410 contact pressing heads. When the forming die operates, the lower die obtains a complex inner-profile curved surface that is formed by multiple contacts and is identical with the outer profile of the prototype workpiece, and the multi-contact pressing heads of the upper die act on the upper surface of the sheet in an isobaric manner, so that the sheet material is forced to deform along the inner profile of the lower die, and the product is obtained.

The invention belongs to the technical field of machine tools and discloses a numerical control machine tool convenient to dedust. The numerical control machine tool comprises a working table, a base and a machine tool bridge. The base is mounted on the machine tool bridge through two guide rail pairs and a ball screw pair and provided with a through groove; a dust-proof pad penetrates through the through groove and is fixed to the machine tool bridge through L-shaped dust-proof plates; the height of the through groove is larger than the thickness of the dust-proof pad; two organ dust-proof covers are arranged below the dust-proof pad; the organ dust-proof covers, the L-shaped dust-proof plates and the machine tool bridge form a dust-proof cavity; a partition board is arranged at the bottom of the base; collecting boxes are mounted on the outer side walls of the L-shaped dust-proof plates correspondingly; ventilation openings are formed in the long sides of the L-shaped dust-proof plates; openings communicating with the dust-proof cavity are formed in one sides of the collecting boxes correspondingly; dedusting pipes communicating with the collecting boxes are arranged at the tops of the collecting boxes; and the middle of each collecting box is provided with two opening-closing plates, and light springs are arranged at the bottoms of the opening-closing plates. The problem that in the prior art, chippings are accumulated and are not easy to clean is solved.

The invention provides a self-tensionsynchronization wheel shaft single-side fixing device, including firm banking plate, tensioning bolt and bar shaped top board; Square bearing mounting blocks are provided on the upside of firm banking plate; Chute is equipped on the left and right side of square bearing mounting blocks; Cylinder-shaped bearing mounting blocks are provided on the downside of firm banking plate; The axle hole for sequentially passing through square bearing mounting blocks, firm banking plate and cylinder-shaped bearing mounting blocks from top to bottom is provided in the center of square bearing mounting blocks; Back-up ring is fixed in axle hole; Screwed hole is provided with the leading flank of square bearing mounting blocks; The screw rod of tensioning bolt is screwed on threaded hole through the bar-shaped top board. In the single-side fixing device, the supporting wheel, the wheel support, the upper structural plate and the bearing seat on the upper structural plate are omitted from the other side of the synchronizing wheel shaft, so that the volume, the complexity and the weight of the transmission system are greatly reduced, and the tightening degree of the synchronous belt is convenient to control, and the tool can be removed after use.

The invention discloses a multifunctional manual translation docking vehicle which comprises a chassis lifting device, wherein guide rails are arranged on two sides of a bed body, racks with the same module with a small gear and a big gear are arranged on the lower sides of the guide rails, a rotating handle realizes translation of an insulation plate through moving the racks by using the handle, the insulation plate is fixed on the bed body through an insulation plate mounting block which is arranged below the guide rails, a bed cushion is arranged on the insulation plate, drawstring rolling shafts are arranged on two ends of a guardrail, and a drawstring stretches to drive the bed cushion connected with the drawstring to longitudinally translate; a flywheel is arranged on the lower end of the bed body, a corresponding flywheel guide rail is arranged on the chassis lifting device, and the chassis lifting device comprises a lifting handle, a transfer bar connected with the lifting handle to make a lifting motion and four caster wheels. By adopting gear and rack operation, the multifunctional manual translation docking vehicle is uniform in acting forces, can not deform after being used for a long time, ensures better accuracy, and is convenient, stable and labor-saving in operation, and thus precious time is gained for emergency treatment.

The invention discloses a testing device for a bending test of a flexible thin film solar cell, and belongs to the technical field of flexible solar cells. The fixed supporting rod is fixed on the two linear guide rails; the sliding support rod is arranged on the two linear guide rails; the power mechanism drives the sliding support rod to move along the two linear guide rails; the flexible thin film bearing platform is used for bearing the flexible thin film solar cell; the flexible film bearing platform is fixedly connected with the sliding supporting rod and the fixed supporting rod. And a temporary adhesive is arranged on the upper surface of the flexible film bearing platform. The flexible thin film solar cell is fixed through the guide rail and the flexible thin film bearing platform, and the flexible thin film bearing platform is pushed to move back and forth accurately through the stepping motor, so that the bending test of the flexible thin film solar cell is realized. The preparation process is simple, the cost is low, the actual working condition of the flexible thin film solar cell is better matched when the bending test is carried out, and the bending characteristic of the flexible thin film solar cell can be more accurately assessed.

An axle unit, includes a control arm and a clamping unit that surround a tube region, wherein a first side of the control arm faces away from the tube region, and a second side of the control arm forms a boundary face on the control-arm side of the tube region, wherein the clamping unit can be brought into supporting abutment with the first side of the control arm and has a boundary face on the clamp side, which face defines the tube region, wherein the clamping unit has a first and second clamping parts each having a wedge portion, wherein the wedge portions are formed in such a way that a displacement of the clamping parts substantially in parallel with a clamping axis toward one another results in a narrowing of the tube region transversely to the clamping axis.

The invention provides a method for preparing metal-based SHS abrasion-resisting coatings through the combination of isostatic cool pressing and vacuum lost foams and belongs to the technical field ofmetal-based composite preparation. According to the method, an isostatic cool pressing technology is adopted to prepare coating blank blocks which replace traditional manually coated coatings, a PR solution is adopted to replace a traditional PVA water solution, vacuum lost foam casting and self-spreading high-temperature synthesis technologies are combined, and synchronous preparation of the abrasion-resisting coatings and metal casting materials is achieved. The shapes and sizes of the coating blank blocks prepared through the isostatic cool pressing technology are not limited, the densityis even and consistent, the compactness of the coating blank blocks is greatly improved, immersion of a matrix metal solution can be reduced in casting, the ratio of a reinforcement phase of each coating is increased, and the hardness and abrasion resistance of the coatings are greatly improved; and additionally, the PR solution can serve as a binder in the isostatic cool pressing process and a combustion improver in the self-spreading process. The method has the advantages of being easy to operate, high in production efficiency, high in product accuracy, complex in shape, more excellent in coating performance and the like.

The invention discloses a bidirectional ecological slope protection brick comprising a brick body (1). The bidirectional ecological slope protection brick is characterized in that a shape of the brickbody (1) is in a quadrangular frustum structure; a vegetation hole (5) is formed in the center of the brick body (1); the left and right side surfaces of the brick body (1) are provided with two brick arms (2) outwardly extending and being symmetric; grooves (3) inwardly recessing are formed in the front and back side walls of the brick body (1); the grooves (3) are matched with the brick arms (2); and the grooves (3) are perpendicular to the brick arms (2). The invention further discloses an ecological slope protection brick laying method. A symmetric structure is employed and brick arms arerelatively arranged, so are the grooves, so each brick is equally pressed and force symmetric offset principle is utilized; the bidirectional ecological slope protection brick has a projecting feeling and novel style, can be clearly structured, easy to be molded and manufacture, and convenient to transport; and the laying technology is simple.

An extendable leg 10 for a tripod, the leg 10 comprises two or more leg-stages 11b, 11c, each leg-stage 11b, 11c moveable axially relative to one or more of the or each other leg-stages to lengthen or shorten the leg. The leg 10 includes a clamp assembly to releasably prevent the relative movement when the leg is at the desired length. The clamp assembly includes a leg brake 22a moveable between a first leg-stage locking position and a second leg-stage release position. In order to control movement of the leg brake 22a between the first and second positions, an actuation means 16 is provided. A cable 17 is operably connected at a first end to the actuation means 16 and at a second end to the leg brake 22a, such that operation of the actuation means 16 causes the cable 17 to move the leg brake 22a.

The invention relates to a dynamic simulation method for a dozer blade inclined mechanism. A lever mechanism is used for replacing a left lifting oil cylinder and a right lifting oil cylinder in a traditional dozer blade inclined dynamic model, so that the dynamic model performs inclined movement by not only relying on driving of an inclined oil cylinder. Whether the method meets kinematic requirements is checked by checking a displacement curve of a hinge point of the lifting oil cylinders, and whether the method meets mechanical requirements is checked by measuring through tests or calculating theoretically the acting force of the hinge point. The method follows the dozer blade inclination principle, and calculated dozer blade inclined dynamic simulation results are accurate.

The invention discloses a multifunctional health care schoolbag. The multifunctional health care schoolbag structurally comprises a hand-held soft ring, a kyphosis correction device, a schoolbag shelland two storing grids. The two storing grids are mounted at the bottoms of the two side faces of the schoolbag shell correspondingly and fixedly connected with the two side faces of the schoolbag shell. The kyphosis correction device is arranged in an inner cavity of the back face of the schoolbag shell. According to the multifunctional health care schoolbag, under the combined actions of straps,a fixing mechanism, an anti-deformation mechanism, a first tension mechanism, a component force correction mechanism, a connecting mechanism and a second tension mechanism, a corrected person is stressed equally, and the stress condition of the back of the corrected person is automatically adjusted according to the kyphosis condition of the corrected person, so that kyphosis correction is achieved, it is guaranteed that the kyphosis correction function of the health care schoolbag is conducted normally, and thus the correction function of the health care schoolbag is improved.