55results about How to "Uniform force balance" patented technology

The invention discloses an automobile lifter with safety device at the front end, which comprises an upright post, a lifting device, a lifting platform, a supporting arm and a safety device. The lifting device and the lifting platform are arranged inside the upright post; the supporting arm is connected with the lifting platform; the lifting device drives the lifting platform to lift; a plurality of safety inverted teeth are arranged at the front end of the upright post; the safety device is arranged on the lifting platform through a connecting plate and is provided with a safety hook; the safety hook is matched and clamped with the safety inverted teeth; the safety hook is arranged on the connecting plate through a rotating shaft connected with a shakable handle; the safety device is provided with an elastic piece; and the elastic piece props against the safety hook. The automobile lifter with the safety device at the front end has the advantages of simple structure, convenient maintenance, and capacity of improving the safety performance of the equipment on the basis of guaranteeing uniform and balanced stress of the safety device.

The invention discloses a manufacturing method of badmintons. The method comprises the following steps of: (a) molding a flocking shelf with a group of flocking rods and a group of flocking tubes, wherein each flocking tube is respectively and integrally formed at one end of a corresponding flocking rod; (b) installing the flocking shelf at a fixed ball head; and (c) respectively implanting the inserting heads of a group feather blades into corresponding flocking tubes; or after inserting the feather blades into the flocking shelf, the flocking shelf with the feather blades is installed on the ball head. The method further comprises a step (d) that natural feather is cut according to the demands of a cutting model to obtain the feather blades. According to the method, machines are engaged to operate, the production efficiency of the badminton is improved, and the manufactured badminton has a molded flocking shelf, so that stable and accordant conical degree is formed for the badmintons, and the badminton quality is ensured.

The present invention relates to a nozzle combining structure of a hot runner system for an injection molding machine capable of increasing durability of the nozzle. To achieve the object of the present invention, the present invention comprises a nozzle combining structure for a hot runner system for an injection molding machine comprising: a manifold having a resin injecting hole extending therethrough in its inner portion through which a resin flows and a nozzle seated groove formed in an outer peripheral surface of an end of the resin injecting hole, a nozzle being seated in the groove; a nozzle having a piston guide bushing formed at its upper end inserted into the nozzle seated groove of the manifold, for dispensing the resin injected from the resin injecting hole of the manifold through the piston guide bushing into a mold; a manifold guide bushing for surrounding and threadedly engaging with an upper portion of the piston guide bushing of the nozzle, the upper end of the manifold guide bushing having a diameter smaller than that of the nozzle seated groove of the manifold so that the upper end of the manifold guide bushing is inserted into the nozzle seated groove of the manifold; and a fastening bushing for receiving an outer surface of the manifold guide bushing and threadedly engaging with an inner circumferential surface defining the nozzle seated groove of the manifold so that the manifold guide bushing is fastened by the fastening bushing to the inner circumferential surface defining the nozzle seated groove of the manifold.

The invention discloses a traction / locking element, a traction / locking set, an orthodontic bracket, an orthodontic bracket system and a tooth orthodontic method. The traction / locking element comprises a strip-shaped nail body, wherein the area of the cross section of the nail body is 0.06-2.5 square millimeters, and the length of the nail body is 0.8-4.5 millimeters; the front end of the nail body is a first fixed end, and the rear end of the nail body is a first screwing end; the first fixed end is provided with a connecting external thread, and the external diameter of the connecting external thread is 0.2-1.6 millimeters; and at least the end position of the first screwing end is provided with a first force application surface. The invention aims at overcoming the defects of the prior art; the traction / locking element can be used for carrying out traction in time according to the traction opportunity of tooth orthodontics, thereby reducing the discomfort of the oral cavity; and the traction / locking element is very convenient to install and disassemble and is very reliable in traction of teeth.

The invention discloses an aluminum alloy conductor flexible cable and a preparation method thereof, and belongs to the field of flexible cables. The aluminum alloy conductor flexible cable comprisesone or more cabling sheath layers, a cabling and belting layer and conductor insulating wire cores from outside to inside in sequence, wherein the number of the conductor insulating wire cores is oneor more, cabling fillers are filled between the conductor insulating wire cores, and each conductor insulating wire core sequentially comprises a tensile strand, an aluminum alloy conductor and a wirecore insulating layer from inside to outside. The aluminum alloy conductor flexible cable not only has high conductivity, but further has excellent tensile strength and compressive creep resistance,the possibility of replacing copper with aluminum in the flexible cable is realized, the use cost of the flexible cable is reduced, and the wear resistance and the service life of the cable are improved due to light weight and excellent characteristics.

The compressed packer has one seat sealing mechanism comprising one locking sleeve, one locking ring, one locking ring seat and one central pipe. Inside the locking ring seat, there are wedged locking blocks with outer surface matching the inner conic surface of the locking ring, locking block support sleeve to hold the locking blocks inside the holes of the locking ring seat, return springs, and limit stops. The central pipe has steps for pushing the limit stops to shift upwards. The compressed packer has rigid wedged locking block to replace elastic support pawls, and possesses stable and reliable seat sealing, flexible smooth and reliable locking block desterilizing, and flushing path between the central pipe and the locking block support sleeve for flushing job.

The invention relates to the technical field of a mechanical shock absorption device, in particular to a pneumatic rubber shock absorption spring. The pneumatic rubber shock absorption spring comprises a spring body, compression units and an installing hole, wherein the spring body is connected in series for forming an integral structure by the compression units, the installing hole is positioned in the axis of the spring body, and an air bag and an air passage are arranged in each compression unit. The air bag and the air passage are respectively arranged in each compression unit, air is stored in each air bag, during the shock absorption, the smoothness is good, a good energy absorption buffer effect can be achieved, support plates arranged at the two ends of the spring body can realize the uniform and balanced stress, and the shock absorption effect is greatly improved.

The invention belongs to a hydraulic pressure balance system of a steel plate cold rolling mill transmission roller, in particular to a hydraulic pressure balance device of a twenty-roller steel plate cold rolling mill transmission roller and a control method. The hydraulic pressure balance device is characterized in that the hydraulic pressure balance device comprises a first oil cylinder and second oil cylinder which are used control the balance of the two ends of the transmission roller, a third magnetic exchange valve and fourth magnetic exchange valve which are used to control the piston rods of the first oil cylinder and the second oil cylinder to move upward and a first magnetic exchange valve and second magnetic exchange valve which are used to control the piston rods of the first oil cylinder and the second oil cylinder to move downward, the stress on the two ends of the transmission roller can be uniform and balanced under the function of the two oil cylinders, the influence of the disturbing force of a junction box to workpieces is avoided, and the processing quality of products is increased. The invention provides the hydraulic pressure balance device, which has simple structure, low cost and good effect and is easy to adjust, of twenty-roller steel plate cold rolling mill transmission roller and the control method.

The invention provides a main and auxiliary multi-top injection molding top mold mechanism, which includes a movable template, an ejection cylinder, a support rod, an ejector plate, and an ejector rod, and the ejector plate is connected with an ejector rod passing through the movable template , characterized in that: the movable template is provided with ribs, the ribs are parallel to the main body of the movable template, the ejector plate is located between the ribs and the main body of the movable template, the support rod passes through the ejector plate, The two ends are fixedly connected to the rib plate and the main body of the movable formwork respectively. The ejection cylinder includes a main ejection cylinder and an auxiliary ejection cylinder. The main ejection cylinder is directly connected to the rib plate, and its piston rod is connected to the ejector plate. connected, the auxiliary ejector cylinder is installed on the main body of the movable template, and its piston rod is also connected with the ejector plate. The ejector mold mechanism has sufficient strength and rigidity, and the ejection force is large and uniform, so that the force on the mold is evenly balanced, which can prolong the service life of the mold and effectively improve production efficiency and product qualification rate.

The invention discloses a blast furnace replacement large sleeve drawing device. The device comprises a car body moving mechanism, a support base, a support beam, a length adjusting mechanism, handles, hook heads, a fixed rod, a spiral press and a mobile hook head support mechanism; a mounting platform is formed on the top surface of the car body moving mechanism; the support base is arranged on the mounting platform; the length adjusting mechanism is connected with the tail ends of the hook heads, and can adjust the length in the horizontal direction; two handles are respectively arranged on the outer sides of two hook heads; one end of the fixed rod is connected with the tail part of the length adjusting mechanism, and the other end penetrates through empty areas of the handles; the spiral press is positioned between the support beam and the mobile support base; the mobile hook head support mechanism is slidingly arranged between rod parts of two hook heads; and the two hook heads are connected with the length adjusting structure after penetrating through holes in the support beam and the support base in sequence. The blast furnace replacement large sleeve drawing device has the advantages of small size, long service life, flexible adjustment and low cost.

The invention discloses a method for reducing overflow in injection molding of an IPM (Intelligent Power Module) and a DBC substrate. The method changes an island design on the DBC substrate and enables the DBC substrate to be balanced in stress in the injection molding process. In addition, a wedge-shaped table structure is designed on a DBC back copper layer at the back of the DBC substrate, a buffer table for the flow rate of an injection molding material at the back of the DBC substrate is formed, and the injection molding material overflowed towards the back of the DBC substrate is reduced under a condition that the DBC substrate is uneven. According to the invention, the method of reducing the overflow through changing the DBC design idea is adopted to replace a laser burr removing process, the production efficiency is improved, and the production cost and technological input are reduced.

The invention provides a vibration absorber for a precise mechanical equipment, which comprises four groups of flexible units in cross layout. An upper plate and a lower plate are respectively connected with an upper contact surface and a lower contact surface of the four groups of flexible units to form an interlayer structure; the flexible unit comprises four pressure bearing blocks, a plurality of rubber blocks and two double bevel connecting blocks in X-shape layout. Therefore, due to simple structure, average and balanced stress for the symmetric structure of two layers, stable rigidity for the cross arrangement structure for the flexible unit, the invention has excellent vibration isolation effect in six directions.

The invention discloses an adaptive double-hung duplex suspension string, which comprises two upper hanging plates connected to a tower cross arm, two ball head hanging rings movably connected with the two upper hanging plates respectively, disk-type or composite insulators connected at the lower ends of the two ball head hanging rings, and socket hanging plates connected at the lower ends of the two insulators respectively. The adaptive double-hung duplex suspension string further comprises a link plate, the lower ends of the socket hanging plates are connected to the link plate, the link plate is provided with an arc-shaped rack, the inner side of the arc-shaped rack is provided with a tooth-shaped structure, the link plate is provided with at least two lower gears which are meshed with the arc-shaped rack, each lower gear is connected to the link plate through a hinge pin or a bolt, two ends of the arc-shaped gear are respectively connected to suspension clamps, and each suspension clamp is connected to a wire clamp. The invention aims to provide an adaptive double-hung duplex suspension string, wherein the suspension string is fixed in an insulated manner, thereby being conducive to insulation protection; and the height of the wire clamps is adjusted by using the gear structure according to the wire tension at two sides so as to ensure the clamps at the two ends to be stressed in a uniform and balanced manner.

The invention discloses a laser welding machine for sedan car steering pull rods with various specifications. The machine structurally comprises a machine main body, an electric wire, a control console, a laser generator, an eye pens, a laser welding head, a positioning clamping arm and a workbench. Transmission mechanisms in stable stand columns on the two sides of the tops of installation framesare operated through equipment, an output shaft transmits power to push a joint to twist tooth pliers to gradually enlarge the self internal distance so as to clamp car steering pull rods with different widths, a weighed metal block is used for downward pressurization and force application for space positioning to avoid waggling, the whole steering pull rods keep balanced and uniform stress, it is ensured that the two ends can be accurately welded to a spherical head, a bearing plate is separated from a center line to move inwards and outwards along a transverse special sliding rail, the stable stand columns are driven to adjust the distance between the installation frames so as to replace the workbench for enlarging the internal position of a panel again, and the equipment using rate andproduct production efficiency are improved.

The invention is applicable to the technical field of battery manufacturing, and discloses a limiting and formation clamp for a lithium ion polymer battery used for fixing and limiting in battery formation. The limiting and formation clamp comprises a mounting body used for mounting and fixing batteries, wherein accommodating grooves used for accommodating batteries are formed in the mounting body; a cover plate used for fastening the batteries is mounted on the mounting body; and a limiting structure for preventing the batteries from loosening or from being over-extruded is arranged between the cover plate and the mounting body. The limiting and formation clamp for the lithium ion polymer battery provided by the invention is simple in structure, capable of effectively solving the problems of ultra-thin or ultra-thick cells and partial lithium separating-out, and capable of ensuring battery product quality.

The invention relates to the field of building construction, in particular to an overhang structure support system. The system comprises supporting columns arranged on the two sides of a building body, overhang beams are fixedly arranged on the sides, close to each other, of the two supporting columns, a supporting assembly is arranged between the two overhang beams, and the supporting assembly comprises a fixing block, supporting rods and abutting blocks. The two supporting rods and the two abutting blocks are in one-to-one correspondence, the ends, close to each other, of the two supporting rods are inserted into the fixing block, the two abutting blocks are fixedly arranged at the ends, away from each other, of the two supporting rods respectively and tightly abut against the two overhang beams respectively, and the fixing block is rotatably connected with a gear. The two supporting rods are located on the two sides of the gear respectively, racks are fixedly arranged on the sides, close to the gear, of the two supporting rods, the length direction of the racks is the same as that of the supporting rods, and the racks are meshed with the gear. The support system has the advantage that a supporting structure is more convenient to mount and demount.

The invention belongs to the technical field of electronic component manufacturing, and particularly discloses a steady resistance wire clamping device. The steady resistance wire clamping device comprises a left chuck, a right chuck and a left chuck cylinder, the right chuck and the left chunk are connected through one end of a same rotation shaft, the other end of the rotation shaft is provided with a balancing weight, and the weight of the balancing weight is equal to the total weight of the left chunk and the right chunk. Through design of the balancing weight, the stress of the two ends of the rotation shaft is balanced and uniform; when the rotating rotation shaft drives the resistance wire clamping device to move, the resistance wire clamping device is stresses uniformly, and deviation cannot be caused; meanwhile, the stress of the rotation shaft is uniform, and the working life of the device is prolonged.

The invention discloses an effective treatment method for solving uneven consumption in a rotary kiln. The effective treatment method comprises the following steps: 1) determining a patching point in the rotary kiln; and 2) digging two rings of bricks firstly, building one ring of bricks, and then digging one ring of bricks till the last ring is sealed; wherein the thickness of the brick at the patching part is less than 1 / 2 of the thickness of the original brick, and the patching degree is that the thickness of the brick at the peripheral old brick is 2 / 5 of the thickness of the original brick. The effective treatment method can improve the repair effect of the rotary kiln.

Horizontal grinding, with a grinding cylinder (1) and a grinding roller (2), the two ends of the grinding cylinder are respectively equipped with end covers (3), (4), and the end cover (3) has a feeding device (5), and the end cover (4) There is a discharge port (6), and the outer wall of the grinding cylinder is provided with a transmission member (9) that drives the grinding cylinder to rotate. The grinding roller is located in the grinding cylinder, and the shaft sections at both ends of the grinding roller protrude The end caps at both ends of the barrel, the two extended shaft sections are provided with a pressure mechanism (7) that can adjust the material roller grinding pressure and the gap between the roller surface and the inner wall of the grinding barrel (7). There are at least two scrapers for the grinding roller (2), which are distributed or evenly distributed along the circumferential direction of the inner chamber of the grinding cylinder. A support system (10) constraining the circumferential direction of the grinding drum.

The invention discloses a multistage heat pump compressor. The multistage heat pump compressor comprises a closed shell, a separation assembly, a driver and at least two pressurizing mechanisms, the separation assembly is arranged in the closed shell and separates the closed shell into a first chamber and a second chamber which are mutually separated, and the first chamber is formed in the second chamber; the driver includes a body and a transmission shaft penetrating through the body, the body is accommodated in the first chamber, and the transmission shaft penetrates into the second chamber; and each of the pressurizing mechanisms is accommodated in the second chamber and is connected with the transmission shaft, and the pressurizing mechanisms are formed at two sides of the body to be driven by the driver to rotate. The bearing of the transmission shaft is uniform, so the rotation stability of the transmission shaft is improved and the noise is reduced, thereby the work efficiency of the compressor is enhanced.

The invention belongs to the field of the application of a motor detection technology, and specifically relates to a vacuum test device for testing the induction motor stator performance. The vacuum test device provided by the invention comprises a working table frame and a vacuum cover suspended above the tabletop of the working table frame; a sealing component matched with a vacuum cover opening is correspondingly arranged on the tabletop; the vacuum test device also comprises a vacuumizing component and an induction motor stator test component; a fixed test end of the induction motor stator test component is located in an area surrounded by the sealing component; the working table frame is also provided with a power source for driving the vacuum cover to linearly reciprocate up and down and guide parts for guiding the moving direction of the vacuum cover; and more than two guide parts are provided and symmetrically arranged on the two sides of the axis of the vacuum cover body. In the invention, since the guide structures are symmetrically arranged on the two sides of the axis of the vacuum cover, the vacuum cover, the guide parts and even the whole structure experience balanced and uniform stress in movement, thus the fault rate and maintenance cost are greatly reduced, the working reliability is high, and the service life is obviously prolonged.

The invention discloses a multi-protection interlocking mechanism for an inflatable cabinet, which belongs to the technical field of switch cabinets and comprises a cabinet body, an operation panel, an interlocking mechanism and a cabinet door. A load switch operating shaft rotates, and the interlocking mechanism drives a grounding switch shielding plate to keep away from or shield the grounding switch operating shaft. The grounding switch operating shaft rotates, and the load switch shielding plate is driven by the interlocking mechanism to avoid or shield the load switch operating shaft; andthe operation panel is provided with a load switch operation hole and a grounding switch operation hole, and the operation panel is provided with a shielding lock catch assembly for shielding or avoiding the load switch operation hole and the grounding switch operation hole. The shielding lock catch assembly shields or avoids the load switch operation hole and the grounding switch operation hole,achieves two-layer protection, guarantees the operation reliability and safety of the gas insulated switchgear, and effectively avoids the problems of frequent faults and even personal and equipmentsafety accidents. The structure is simple, operation is convenient, and implementation is easy.

The invention relates to the technical field of product detection equipment, and particularly relates to a crimping jig pressure balance adjusting mechanism and a crimping test device. The crimping jig pressure balance adjusting mechanism comprises a plurality of adjusting assemblies arranged along a peripheral side of a crimping jig, each adjusting assembly comprises a limiting guide part, an adjusting block and a connecting block, each adjusting block is slidably connected with the limiting guide part in a horizontal direction, and a first inclined plane is arranged on an upper surface of each adjusting block; and the connecting block is located on the adjusting block and fixedly connected with the crimping jig, the connecting block is slidably connected with the limiting guide part in avertical direction, a second inclined plane attached to the first inclined plane is arranged on the lower surface of the connecting block, and the adjusting block moves in the horizontal direction toenable the connecting block to move in the vertical direction. Due to a fact that the adjusting block and the connecting block are in surface contact, the adjusting block can stably support and adjust the height of the connecting block, and the crimping jig is balanced and uniform in stress by adjusting the height of the connecting block in the multiple adjusting assemblies.