36results about How to "Improve anti-twist performance" patented technology

The invention relates to an integral annular conveying belt which comprises a conveying belt upper basic layer, conveying belt frameworks and a conveying belt lower basic layer. The conveying belt upper basic layer and the conveying belt lower basic layer are folding organ-shaped bodies and form the integral annular conveying belt in a defining manner. The at least two conveying belt frameworks are arranged between the conveying belt upper basic layer and the conveying belt lower basic layer. The conveying belt frameworks are fixedly connected with the conveying belt upper basic layer and theconveying belt lower basic layer in the defining direction of the conveying belt upper basic layer and the conveying belt lower basic layer. The conveying belt frameworks are steel wire ropes. An outer covering layer is arranged above the conveying belt upper basic layer. The integral conveying belt can directly revolve to form an annular shape in a defining manner; the phenomena that due to use of two sets of parallel conveying belts used in cooperation, operation is not synchronous, and the operation speeds have differences are avoided; the workpiece transfer effect is guaranteed; space andenergy are saved; the service life is long; and products are light, and transporting and mounting are convenient.

The present invention discloses one kind of metal catapult watch band and its joints. Each of the joints includes one first assembly, one second assembly and a casing. The second assembly has a bottom barrel with connecting part connected to the first short fork and the second short fork in the first assembly, and the casing has a cavity buckled to a casing barrel and buckled to the first and the second casing buckle tab. The first assembly in a joint has a long fork capable of being inserted into the flute of the second assembly of the next joint for connection or separated from the flute for detaching. The watch band may be detached fast and conveniently and has low cost and wide use range.

A monofilament obtained by smelt-spinning and stretching of a vinylidene fluoride resin is subjected to a high-temperature relaxation treatment for an extremely short period of 0.05-0.5 sec. within a high-temperature heating oil bath at a temperature of 140-175° C., thereby producing a vinylidene fluoride resin monofilament, which comprises a vinylidene fluoride resin having an inherent viscosity of at least 1.40 dl / g, and has a knot strength (JIS L1013) of at least 600 MPa and excellent anti-twist property represented by a twist index of at least 0.90 when measured after the monofilament being subjected to application for 1 minute of a tensile load equal to approximately 50% of a maximum tensile load (JIS K7113), removal of the load, and standing for 3 hours.

The invention discloses an automobile sunshade plate distortion test device. The device comprises a base 1, a first fixed frame 3, a second fixed frame 8, a first clamp 4, a second clamp 6, a transmission shaft 13, a lever 9, an angle calibrated scale 11, a servo motor 15, a torque sensor 17 and a motor controller 16. The automobile sunshade plate distortion test device is convenient to operate and simple in test, and can conveniently test the distortion resistance of an automobile sunshade plate.

A radial type shield body torsionproof device is provided according to the invention, wherein the radial type shield body comprises a middle shield and a shield tail connected with each other through an articulated hydrocylinder. The middle shield comprises a middle shield support ring, a middle shield back support ring board and a middle shield articulated base arranged on the middle shield back support ring board. The shield tail comprises a shield tail connecting ring and a shield tail articulated base arranged on the shield tail connecting ring. The articulated hydrocylinder is connected between the middle shield articulated base and the shield tail articulated base. The torsionproof device comprises a torsionproof frame and a U-shaped baffle board, wherein the torsionproof frame is arranged on the middle shield support ring and the middle shield back support ring board and is arranged inside the articulated hydrocylinder radially with torsionproof ends, and the U-shaped baffle board is formed on the shield tail articulated base in a one-piece manner so that the torsionproof ends are contained in the inner cavity of the baffle board. Therefore, the torsionproof frame does not occupy the mounting position of the articulated hydrocylinder so that more articulated hydrocylinders can be arranged between the middle shield and the shield tail, and greater dragging force for the shield tail is provided to ensure successful shield construction.

The present invention relates to automobiles. A torsion-resistant automobile axle, comprising a rod-shaped main body, the rod-shaped main body is a circular pipe structure, a circular inner rod is rotatably pierced inside the rod-shaped main body, and the outer peripheral surface of the inner rod is provided with There is a first friction layer, the inner surface of the rod-shaped main body is provided with a second friction layer, the inner rod and the rod-shaped main body are abutted together through the first friction layer and the second friction layer, and the rod-shaped Friction agent is filled between the main body and the inner rod. The invention provides a torsion-resistant automobile axle capable of absorbing torsion energy and a processing method thereof, which solves the problem of poor torsion-resistance ability of the existing axle main body.

The invention discloses an operation method for tunnel pressure-holding coring equipment. By using a continuous conduit, the inner tube assembly of the core remover is placed in the coring position, and the continuous conduit and the central rod are hollow structures, and the signal cable and power The cable is placed in the hollow structure, and the continuous conduit cooperates with the multiple anti-rotation mechanisms of the inner tube assembly to prevent the rotation of the core barrel, and the core barrel is also equipped with a self-gravity valve for pressure maintenance. The invention has good operation performance, can prevent the core cylinder from rotating during the coring process, keeps the rock core pure, and the inner pipe assembly and the outer pipe assembly are easily separated.

The invention belongs to the pipeline technical field and relates to a manufacturing method of an air-blowing pipeline. The manufacturing method comprises the following steps that: first step, a flat and straight air-blowing pipe body is folded, the air-blowing pipe body passes through an opening narrowing channel, and then passes through a hole in a shaping pipe, and further passes through a mold core hole, and the air-blowing pipe body is pulled, and a plunger is located inside the air-blowing pipe body, and the joint of two sides of the air-blowing pipe body at a shaping end is located at a shaping groove and is heated, so that a protruding rib can be formed; and second step, a plastic extruding machine is started, and plastic enters a space between the mold core and the mold sleeve of the head of the plastic extruding machine, and an upper outer pipe body is formed at the exterior of the air-blowing pipe body through extrusion, and a traction system pulls the outer pipe body to enter a cooling system, so that the air-blowing pipeline can be formed. According to the manufacturing method of the air-blowing pipeline, a system of an air-blowing pipeline for manufacturing cables is adopted. The manufacturing method adopts a simple system, is low in cost and is easy to master, and has simplicity. The air-blowing pipeline manufactured by adopting the method has excellent anti-torsion and anti-bending performance.

The invention discloses a movable anti-aging cable for a stacker-reclaimer. The movable anti-aging cable comprises a fixation tough pipe, a tin cladding layer, a flame-retardant layer, a tensile layerand an oxygen barrier layer. The fixation tough pipe comprises a hollow pipe and a rubber pressing block. The fixation tough pipe is arranged in the tin cladding layer and fixedly connected with theouter surfaces of conductor bodies in a clamped mode; a cavity channel is formed in the middle of a hollow pipe; and the outer surface of the hollow pipe is fixedly connected with the rubber pressingblock perpendicularly. The fixation tough pipe and the conductor bodies form an integrated structure with deformation resistance, so that the overall pressure resistance is enhanced; and the separatedintegrated fixation mode can reduce the material torsion and stretching conditions caused by different deformation amounts due to the internal and external deformation offset of each layer of the cable caused by working movement. Besides, through the control of the tin cladding layer on the internal temperature, the strong flame-retardant property of the flame-retardant layer, the good torsion resistance of the tensile layer, and the thermal aging resistance of the oxygen barrier layer, the aging resistance of the whole cable is improved.

The invention discloses a dynamic conducting rod, a dynamic end assembly with the dynamic conducting rod and an arc extinguish chamber. Wrenching concave portions are formed in the peripheral surface of a guide column section of the dynamic conducting rod, the inwards concave bottom surfaces of the wrenching concave portions serve as wrenching profiles, and therefore when threaded connection between the dynamic conducting rod and other devices is conducted, a wrench can be installed on the wrenching concave portions of the guide column section, the wall surfaces of a jaw of the wrench can be matched with the wrenching profiles of the wrenching concave portions in a rotation-preventing mode. When the dynamic conducting rod is normally used, the purpose that the dynamic conducting rod conducts guiding movement in the front-and-rear direction relative to a guide sleeve is achieved through guiding matching between rotation-preventing key grooves and rotation-preventing convex ribs, the rotation-preventing concave ribs can prevent the dynamic conducting rod from rotating relative to the guide sleeve in the movement process of the dynamic conducting rod so as to achieve the effect of torsion resistance through key transmission, and therefore the dynamic conducting rod can be easily assembled and reliably used.

The invention relates to a welding-type jockey pulley base of a stainless steel escalator step, belonging to the manufacturing field of escalators. The traditional structure is formed by casting integrally and has the problems of energy consumption, low percent of pass, high manufacturing cost and poor consistency. The welding-type jockey pulley base of the stainless steel escalator step comprises a jockey pulley shaft and a base body with a mounting hole, wherein the jockey pulley shaft and the base body are detachable members which are integrally welded and fixed; the jockey pulley shaft iscylindrical and comprises a jockey pulley mounting part on the upper part, a shaft lever in the middle part and a shaft base connection end on the lower part; the base body is a board stamping part comprising a triangular bottom face and a side wall which is perpendicular to the bottom face and provided with an opening at one end; a connection chamfer is arranged at the joint of the triangular bottom face and the side wall; and the vertex angle of the triangular bottom face is provided with a jockey pulley mounting hole in which the jockey pulley mounting part is inserted. The invention has the advantages of detachable production, convenient processing, low manufacturing cost, energy saving, light self weight and good strength, and is suitable for detachable-type stainless steel steps.

A band-form woven-fabric structure which is formed by weaving from non-fusion-bondable synthetic fibers and fusion-bondable synthetic fibers including in the fiber surface a fusion-bondable ingredient having a softening point lower by at least 30 DEG C than that of the non-fusion-bondable synthetic fibers, wherein the fusion-bondable synthetic fibers are used as at least part of the weft in the woven-fabric structure and have undergone a heat treatment at a temperature not lower than the softening point of the fusion-bondable ingredient, whereby the fusion-bondable synthetic fibers have been fusion-bonded to themselves or to the non-fusion-bondable synthetic fibers. According to this woven-fabric structure, a band-form woven-fabric structure, e.g., a webbing for seat belts, can be efficiently produced which, even when used repeatedly, retains the weft-direction rigidity over long and is less apt to twist and which is soft and easy to handle.

The invention discloses a waterproof and twist-proof cable for wind power generation. The cable comprises an outer insulating layer; the surface of the outer insulating layer is fixedly connected withrubber protrusions; and an outer waterproof layer is adhered to the inner wall of the outer insulating layer; a silicone layer is adhered to the inner wall of the outer waterproof layer; and a filling layer is adhered to the inner wall of the silicone layer; a main conductive wire is arranged at the center of the inside portion of the filling layer; secondary conductive wires are arranged in portions, at the top and left and right sides of the main conductive, inside the filling layer; and the four secondary conductive wires are arranged to encircle the main conductive wire at the center. Themain conductive and the secondary conductive wires each comprise a copper core, wherein the copper core is formed by twisting 23 bundles of wires, and each bundle is formed by twisting 102 copper wires with a diameter of 0.2 mm. The waterproof and twist-proof cable for wind power generation is simple in structure, low in cost, effectively avoids occurrence of cable twisting-off or water seepage,can realize continuous conveying of electric energy, reduces cost of circuit setting and completely satisfies demands of usage.