30results about How to "Resolve twist" patented technology

The invention relates to a four-line segmentation rolling technology of a deformed steel bar with a diameter of 10mm, and the technology is characterized in that 150 square billets are sequentially rolled by six rough rolling units and 8 medium rolling units, rolled pieces are machined into flat steel, the rolled pieces then enter a fine rolling unit 15H to be machined into 0.4-mm dog-bone-shaped rolled pieces with the size of the middle part being smaller than that of the two sides, the rolled pieces enter a 16 H / V frame rolling machine for segmentation in a centering way, because the distance of two middle holes is identical in the design of the pre-segmentation and a segmentation hole, the rolled pieces under the pre-segmentation can be precisely centered in the segmentation hole, the rolled pieces are rolled into four parallel-connection rolled pieces with a ligament of 0.7mm, then the four parallel-connection rolled pieces are subjected to three-time segmentation through a front segmentation wheel and a rear segmentation wheel, which are installed on a 16 H / V outlet, then the two middle parallel-connection rolled pieces are twice cut into four independent rolled pieces, the four rolled pieces respectively and individually enter a roll groove passage of 17H and 18H / V frame rolling machines to be respectively rolled into four deformed steel bar finished products with the diameter of 10mm, the same size and the same shape. Through the technology, the yield per hour of the deformed steel bar with the diameter of 10mm is increased, the production cost is reduced, the production efficiency is increased, and the labor intensity of operators is alleviated.

The invention discloses a novel vertical spindle wind machine which is mainly formed by support devices, vanes and the like that are respectively arranged on an upper layer and a lower layer and are almost completely the sane as each other; the wind machine also comprises a movable wing link gear, a speed governing device, a rhachis, a locating device, a limiting device, an auxiliary limiting device and an auxiliary starting device. The movable wing link gear adopts a labile equilibrium form to lead the vane group to easily open and shut, so as to not only ensure the best holding state, but also reduce the requirements for the manufacturing materials, thus greatly improving the cost performance of the wind machine; the machine adopts simple and effective mode of mechanical speed regulation, so as to absolutely ensure the service life of the wind machine; all movable linking parts of the machine are in a state of sealing, so that rain, snow dust and sand are avoided damaging the wind machine; as the machine is designed to be a form of double-layer reverse rotation, the utilization rate of wind energy can be improved, and the torsional force of the whole machine can be reduced; meanwhile, the machine is provided with a device which can keep the whole machine flat, so that the whole machine can be easily put down when being necessary, and the novel vertical spindle wind machine is more suitable for ships. When in design, the processing technique and installation technique are fully taken into consideration, so that the invention is suitable for commercial process.

A multiple-freedom-degree floating electric connector with a self-calibration function comprises a plug (1) and a socket (2), and is characterized in that the socket (2) comprises the components as follows: a secondary positioning pin (11), an after-pin insulator (13), a Phi12 contact pin (14), a Phi6 contact pin (15), a before-pin insulator (16), a Phi3 contact pin (18) and a lug casing (19). According to the multiple-freedom-degree floating electric connector with the self-calibration function, the problems of unreliable electrical connection or electrical connection failures caused by multiple-freedom-degree changes such as displacement, torsion and the like produced by a battery in any direction or at any angle of an installation carrier can be solved; at the same time, damage caused by vibration and impact can be effectively eliminated; the electric connector has the characteristics that the electric connector can be connected and separated rapidly, the operation is convenient, the mechanical property is good, the electric connection is reliable, and the like; and the electric connector has larger economic and social values.

A fluteless rolling technology for rolling steel section includes sequentially determining 14 technological parameters including total cross-section shrinkage ratio of the workpiece to be rolled, the pressing down size of each pass, total number of passes, 5 correcting coefficients, etc, and rolling by fluteless rolling mill while regulating the clamp to the workpieces.

The invention discloses a combination-typed internal burr removing and welding seam guiding device, comprising a fixed bracket, a welding seam guiding roller assembly, and a cutter rod assembly; wherein, the fixed bracket is arranged on the side surface of a forming frame; a large trailing plate which can slide upwards and downwards is arranged on the fixed bracket; one side of the large trailing plate is fixed with the welding seam guiding roller assembly and the other side thereof is provided with a small trailing plate in an upper and lower sliding way; the small trailing plate is provided with an oil cylinder and a cutter rod assembly which are connected with each other. The combination-typed internal burr removing and welding seam guiding device leads the welding seam guiding roller assembly and the cutter rod assembly used for removing the internal burr to be effectively combined together, reduces the parts, simplifies the structure, increases the whole strength, has extremely convenient installation usage and specification replacement, improves the product quality, production efficiency and yield in the production and leads the production cost of the enterprise to be greatly reduced.

The invention belongs to a precast concrete frame beam joint of a precast concrete fabricated structure. The technical scheme includes: a first beam section of a precast concrete frame beam is in butt joint with a second beam section of the precast concrete frame beam, and a first square steel pipe is horizontally buried to the end of the first beam section of the precast concrete frame beam; a second square steel pipe is horizontally buried to the second beam section of the precast concrete frame beam, and the first square steel pipe and the second square steel pipe are identical in section; a slide square steel pipe horizontally and internally sleeves the second square steel pipe; a braking device is fixed to the top of the slide square steel pipe, and the top of the second steel pipe is provided with an opening allowing slide of the braking device; the braking device drives the slide square steel pipe to slide in the second square steel pipe to the first square steel pipe; the surface of the slide square steel pipe is coated with a polytetrafluoroethylene film. By modification of a beam column joint of a conventional precast structure into the precast concrete frame beam joint, an anti-seismic concept of 'strong joint and weak component' is realized.

The invention relates to a hot rolling wire rod production method for improving the surface quality. The steps include billet preparation, heating processing, pass rolling, reducing and sizing, coil collecting and finishing. Rough rolling, intermediate rolling and pre-finish-rolling are included, the step pitch is increased during the heating processing, the box pass is adopted for billets firstly, exchange in the ellipse pass and the circle pass is then achieved, and the square billets are rolled into semi-finished products with circular fracture surfaces; the box pass, ellipse pass and circle pass combined pass is adopted for the rough rolling, the square billets are compressed under large pressure, the box pass is adopted for the first three passes of the rough rolling, box type hole base angles are increased, the ellipse pass and the circle pass are adopted for the fourth pass and the fifth pass of the rough rolling, and the circular shape is achieved after the rough rolling; and induction heating is added between the rough rolling and the intermediate rolling, and the problem that the head and tail temperature difference of red steel heads is large is solved. A spiral guide pipe is added to a lifting spiral pipe structure for the coil collecting, the circle shape of tail portions is regularized through the spiral guide pipe after the tail portions lose tension during the coil collecting, and therefore the circle shape of the tail portions is controlled and the problem that the tail portions are scratched is solved. The hot rolling wire rod production method meets the zero defect quality requirement.

Disclosed is an automobile rear axle reducer shell large end face drilling clamp. A drill plate device is arranged at the bottom of an automobile rear axle reducer shell. The automobile rear axle reducer shell is fixed to the drill plate device through a clamping device. The two ends of the drill plate device are connected with a left rotation device and a right rotation device which are arranged on a clamp support correspondingly. The automobile rear axle reducer shell rotates through a rotation air cylinder arranged on the left rotation device. A locating air cylinder is arranged under a drill jig top plate in the drill plate device. The locating air cylinder is connected with an air channel of a rotation connector of the right rotation device through an air passage. According to the automobile rear axle reducer shell large end face drilling clamp provided by the invention, the automatic locating air cylinder and the rotation air cylinder are adopted in the drilling clamp, so that automatic locating and overturning of a workpiece are achieved, and accordingly the precision and quality of hole machining of the workpiece are improved. The automobile rear axle reducer shell large end face drilling clamp is simple in structure, convenient to operate, light, handy and attractive. The problem of air pipe torsion during workpiece overturning is solved, the operation safety is improved, the labor intensity of workers is relieved, and the work efficiency is improved by 20% or above.

The invention provides a wall-type component lateral support device and a low cycle repeated loading test device. The lateral support device comprises one pair of lateral support bodies. One pair of lateral support bodies is fixedly connected through a connection support. One end of each lateral support body is vertical to a pulley group arranged along a length direction. The pulley group can be pressed against the surface of a wall-type component to be tested and can be rotated under the vertical or horizontal force applied by a loading device to the wall-type component to be tested. The other end of the lateral support body is a free end. The free end can be embedded in the lateral support beam of the low cycle repeated loading test device. By using the wall-type component lateral support device, a practical problem that the wall-type component to be tested is not deformed or twisted in a same plane during a low cycle repeated loading test process is solved, and the accuracy and thereliability of a test are effectively increased.

The invention discloses a wiring device for computer room construction. The device comprises a workbench, a worm, an adjusting bolt and an unwinding device, wherein the unwinding device comprises a unwinding base, an outer gear ring, a clamping ring, a supporting rod, a clamping rod, an upper wedge block, a lower wedge block, a rolling wheel and a gear, a workbench hole is formed in the middle of the workbench, a vertical rod is arranged on the upper portion of the right side of the workbench, a worm groove is formed in the upper portion of the vertical rod, a worm hole is formed in the vertical direction of the worm groove, a plurality of supporting legs are arranged on the lower portion of the workbench, the worm is rotationally connected to the worm hole, the worm rotates in the worm hole, the lower portion of each supporting leg is fixedly connected to an adjusting bolt, and the unwinding device is rotationally connected to the workbench hole and rotates in the workbench hole.

The invention discloses a method for machining a high-precision extrusion die. The extrusion die comprises a female die and a male die. Before the female die and the male die are subjected to workpiece standardization, an inward-contracting step face is machined under the surface of a workpiece, wherein the surface of the inward-contracting step face is in the shape of L, and the inward-contracting step face serves as a uniform leveling foundation of follow-up processes; the center point of the workpiece is found before machining and serves as the coordinate center of all the follow-up machining processes, and then positioning is carried out with the inward-contracting step face as the horizontal foundation to carry out machining according to uniform coordinate dimensions. Due to the adoption of the uniform leveling standard, a mold cavity and a mold core of the workpiece do not twist; due to the method that the center point of the workpiece serves as the coordinate center, the mold cavity and mold core of the workpiece will not be eccentric; in this way, the phenomena of twisting and being eccentric are avoided in the workpiece machining process, machining precision and efficiency are obviously improved, the female die and the male die can be matched with each other completely, and the rejection rate is obviously lowered.

The invention relates to an ultra-long bolt, which comprises a bolt and a nut, wherein the nut is arranged at the end part of one end of the bolt; key grooves are arranged on two sides at the rod part of the bolt; locking keys are arranged in the key grooves; the length L of the bolt is greater than the diameter D of the bolt by 60 times, i.e., L is greater than 60D; and the distance S between the locking keys and the nut is greater than the diameter D of the bolt by 10 times and is smaller than the diameter D of the bolt by 15 times, i.e., S is greater than 10D but is less than 15D. The ultra-long bolt has a simple structure; and two small planes are processed on the bolt, two key grooves are processed on the small planes, and the locking keys are placed into the key grooves to clamp the bolt, the problem that the rod part of the bolt is twisted along with the screwing in the screwing process of the ultra-long bolt is effectively solved.

The invention discloses a novel vertical spindle wind machine which is mainly formed by support devices, vanes and the like that are respectively arranged on an upper layer and a lower layer and are almost completely the sane as each other; the wind machine also comprises a movable wing link gear, a speed governing device, a rhachis, a locating device, a limiting device, an auxiliary limiting device and an auxiliary starting device. The movable wing link gear adopts a labile equilibrium form to lead the vane group to easily open and shut, so as to not only ensure the best holding state, but also reduce the requirements for the manufacturing materials, thus greatly improving the cost performance of the wind machine; the machine adopts simple and effective mode of mechanical speed regulation, so as to absolutely ensure the service life of the wind machine; all movable linking parts of the machine are in a state of sealing, so that rain, snow dust and sand are avoided damaging the wind machine; as the machine is designed to be a form of double-layer reverse rotation, the utilization rate of wind energy can be improved, and the torsional force of the whole machine can be reduced; meanwhile, the machine is provided with a device which can keep the whole machine flat, so that the whole machine can be easily put down when being necessary, and the novel vertical spindle wind machine is more suitable for ships. When in design, the processing technique and installation technique are fully taken into consideration, so that the invention is suitable for commercial process.

The invention provides a space three-dimensional multidirectional-adjusting aluminum alloy support system. The space three-dimensional multidirectional-adjusting aluminum alloy support system comprises a halfen groove and an aluminum alloy buried plate, one end of the halfen groove is arranged a wall body in the X-axis direction and closely provided with the aluminum alloy buried plate, a connecting device and vertical plates are arranged on the two sides of the aluminum alloy buried plate correspondingly, and the connecting device comprises a first kidney-shaped hole formed in the Z-axis direction; T-shaped bolts, aluminum alloy transfer weights and aluminum alloy transfer cushion blocks are arranged at the two ends of the connecting device in a matched mode correspondingly, and threads are arranged on the connecting faces of the aluminum alloy transfer weights and aluminum alloy transfer gaskets; the threads are arranged on the outer surfaces of the vertical plates, second kidney-shaped holes are formed in middles of the vertical plates in the Y-axis direction, aluminum alloy transfer weight keys and aluminum alloy hanging weights are arranged between the vertical plates on the two sides in an embedded mode, and balance bolts transversely penetrating through the aluminum alloy transfer weight keys are arranged in the second kidney-shaped holes in a matched mode; and hanging grooves are symmetrically formed in the two sides of the upper surfaces of the aluminum alloy transfer weight keys, the aluminum alloy hanging weights are arranged on the hanging grooves in a hung modethrough U-shaped hooks, and fine-adjusting bolts are arranged at the tops of the U-shaped hanging grooves. The space three-dimensional multidirectional-adjusting aluminum alloy support system has theadvantages of three-dimensional multiple adjustment, accuracy and stability.

The invention discloses a slow descending device, more particularly relates to a single-way type slow descending device which can be used for descending multiple persons at a time and belongs to the field of high-rise rescue. Two defects exist in an existing slow descending device, one defect is that the work principle of the slow descending device determines that the slow descending device can beonly used by one person once at the same time, and efficiency is low; and the other defect is that when a fire happens, if multiple persons use multiple sets of slow descending devices, the lower ends of ropes are likely to be twisted and entangled together, and normal implementation of the function is hindered. By means of the slow descending device, a rack is used for limiting the distance of rotating engagement, the falling energy is transmitted to an energy consumption mechanism, a whole composed of the rack, the energy consumption mechanism and a transmission mechanism can be engaged with a path to slide on the designated path, and therefore the function of conducting descending along the designated path is achieved. A single descending path is adopted in the structure, and the problems of twisting and entangling of the ropes in traditional design are solved. A structure capable of clamping the path is designed on the rack of the structure, multiple pieces of equipment can be clamped at the same time on the path, and the purpose of descending multiple persons at the same time is achieved.

The invention belongs to the technical field of petroleum field operation devices, and provides a horse head assembly for a pumping unit which is provided with a base, a supporting frame, a driving motor and a reduction gearbox are fixed to the base, the driving motor is connected with the reduction gearbox through a belt, an output shaft of the reduction gearbox is connected with a crank, a balance block is arranged on the crank, and a connecting rod is hinged to the crank. The connecting rod is hinged to one end of the walking beam, the walking beam is rotatably supported on the supporting frame, the horse head is fixed to the other end of the walking beam, the beam hanger is connected to the lower portion of the horse head, the walking beam is provided with a top plate, a bottom plate and two side plates, the side plates are symmetrically arranged between the top plate and the bottom plate, the side plates are welded to the top plate and the bottom plate respectively, and a connecting base is formed at one end of the walking beam. The connecting base is used for hinging a horse head. Compared with the prior art, the device has the following beneficial effects that when an oil well needs to be maintained, the horse head located above the oil well is rotationally moved away, and meanwhile the problem that in the prior art, the horse head deflects towards one side, and consequently a walking beam is twisted can be solved.

The present invention discloses a connection structure for a suspension strain insulator string. The connection structure comprises a pre-positive unit, a double-layer set square (15) and a second-change six-link plate (21). The double-layer set square (15) is provided with three string hanging holes (15.1). The second-change six-link plate (21) is provided with two string lifting holes (31) and six ring hanging holes (32). The pre-positive unit is connected with one string hanging hole (15.1) of the double-layer set square (15). The other two string hanging holes (15.1) of the double-layer set square (15) are respectively connected with the string lifting holes (31) of the second-change six-link plate (21) on the front and rear sides of the suspension strain insulator string. The ring hanging holes (32) of the second-change six-link plate (21) are connected with a wire (37). Based on the above structure, the functional requirements of turning around a corner, bearing the wire pressure, preventing the falling of the string, isolating a failure, adjusting the height of a tower and the like can be met. Meanwhile, the twisting problem of link plates can be well solved and the construction cost is lowered. Moreover, the direct jump-through is realized and the construction cost is lowered.

The invention belongs to the technical field of petroleum field operation devices, and provides a beam-pumping unit device which is provided with a base, a supporting column, a driving motor and a reduction gearbox are fixed to the base, the driving motor is connected with the reduction gearbox through a belt, an output shaft of the reduction gearbox is connected with a crank, a balance block is arranged on the crank, and a connecting rod is hinged to the crank. The connecting rod is hinged with one end of the walking beam, the walking beam is rotatably supported on the support frame, the other end of the walking beam is fixedly provided with a horse head, the lower part of the horse head is connected with a beam hanger through a steel wire rope, the pumping unit is provided with a brake device, and the pumping unit is provided with a detachable steel wire rope guide assembly. The device has the following beneficial effects that the steel wire rope and the polished rod can be located on the same vertical line, the steel wire rope is supported by the multiple rolling wheels and protected, and long-term use cannot be affected due to direction change of the steel wire rope.

The invention discloses a household appliance, which comprises a main body and a door body, wherein the main body is provided with a power supply module and has an opening; the main body is connectedto the door body through a hinge; the door body is used for opening or closing the opening, the door body is provided with a power utilization module, the hinge comprises a hinge shaft, the door bodyis provided with a shaft hole suitable for accommodating the hinge shaft, and the door body can rotate around the hinge shaft. The household appliance further comprises a wireless power transmitting device and a wireless power receiving device, wherein the wireless power transmitting device is arranged in the hinge and connected with the power supply module; the wireless power receiving device isarranged in the shaft hole and is connected with the power utilization module; and the wireless power transmitting device is coupled with the wireless power receiving device so as to carry out wireless power transmission. Through the scheme provided by the invention, the threading problem of a wire harness at the hinge can be effectively solved, the power supply and communication functions based on the hinge without the threading structure are realized, and the power supply effect on a user module on the door body is ensured while the overall reliability of the household appliance is improved.