The actuator is coupled to in-line two mnogovekovyh radial forging machines
(57) Abstract:Usage: machinery, namely radial forging (crimp) machines for machining pressure. The inventive actuator is coupled to a line radial forging machines connects at least two cars. Each of them has its own gear, V-belt drive and motor. The drives of each machine is kinematically linked the two common shafts having different direction of rotation. With engines installed on top of frames and the total shafts are made in split bearings. 2 C. p. F.-ly, 3 ill. The invention relates to mechanical engineering, and more particularly to a radial forging (crimp) machines for the manufacture of products by pressure treatment.Known coupled to (tandem) radial forging machine (RCM), designed for pulling and calibration for handling ingots and received including continuous casting of steel. The design feature of the dual REC is the coupling of two forging mnogovekovyh units in the form of two forging units with one common ring gear drive. The common ring gear drive via Telem.A disadvantage of the known device is that the total for two units of ring gear actuator with the driving kinematic chain has a low transmitted power at high loads. Gear drive kinematic chain transfer torque to both of the dual unit that at high peripheral speeds of these wheels limits their opportunities. Highly stressed gears and common to both blocks of the ring gear drive for the same reason.Access the gears and components interfacing with the shafts for control and maintenance is extremely difficult, especially for machines of small and medium effort.These deficiencies, as well as the cylinders hydraulic fuses between the supports of the rotary axle box at the top of the machine, and electric motors with V-belt transmission at the bottom of the machine limits the possibility of creating a dual REC great effort, for example, for machining of cast rods obtained by continuous casting steel section over 100 mmThe purpose of the invention address deficiencies that inevitably arise when blocking two machines in one unit, using traditional tee is azres a-a in Fig. 1; Fig. 3 cross-section B-B in Fig. 2.The drive performed as follows.Forging unit and ring gear driveandand forging the block b with the annular gear drivebUnited in one unit (Fig. 1) so that between them is formed a space N. Blocks a and b are installed on a common base frame 1. Gear drives each of the blocks a and b are arranged in the same way, therefore, the following description of the device block. Block b is arranged in a similar way. On the drive shafts 2 of each block is rigidly fixed to drive the driven gear 3. Drive gears 3 kinematically interconnected intermediate gears 4 (Fig. 2) and the transverse shaft 5 with connection (safety) coupling 6. Wheels 3, gear 4, a shaft 5 with a conical pairs of wheels 7 form a sort of ring gear drive. Features circular drive does not change if the shaft 5 to replace the two intermediate gears similar to the gears 4. In machines of small and medium size do. From the pairs of conical shaft 7 6 power flow is divided into two strands. Right kinematic chain by means of bevel gear 7, a cylindrical gears 8-10 connected with the shaft 12, and posledstvijami 15. The shaft 12 is mounted in the frame 1 in split bearings 16. The motors 14 and 15 mounted on the frame 1.The drive shaft 2 by the connecting rod 17 is connected kinematically to the main shaft 18, which tells the reciprocating motion of the connecting rod 19 with the striker 20 and through linkage system 21 with a screw pair 22 of the swinging movement of the actuator 19 scenes and striker 20.Gear 10' and 10" have a number of teeth corresponding to a given ratio, often equal to i=2, i.e., kinematic chain WITHb(Fig. 3) is 2 times more speed than the chain WITHand. Accordingly, and the output unit b has a frequency of moves brisk two times greater than that of the block.The drive works as follows.Rotation, and hence the power flows from the engine 14 and 15 through V-belt gear 13 is transmitted to the shaft 12. The shaft 12 rotation passed through the gears 10 9 8 bevel wheels 7, and the shaft 5. From the shaft 5, the rotation is transmitted to the slave gear wheels 3 and the drive shaft 2. The last motion passed their Executive mechanisms: the shaft 18, the wings 19, the strikers 20. Boyko 20, acting on the workpiece diameter D, compresses it into a diameter of d1in the first block and d2is telego movement. The actuator is balanced, because its elements are rotating in opposite directions (Fig. 2). 1. The ACTUATOR is COUPLED to IN-LINE TWO MNOGOVEKOVYH RADIAL FORGING MACHINES, containing for each radial forging machine, ring gear, V-belt with the pulleys of the transmission and the electric motor, characterized in that the kinematic connection of actuators is coupled to a radial forging machines are made through a common drive shaft mounted in the bearings of their bases at the ends of which are rigidly fixed gear with a given number of teeth mating with the toothed wheel of the drive actuators of the respective radial forging machines, and between the bearing assemblies on the specified shaft of the fixed pulley-flywheel V-belt transmission.2. Drive under item 1, characterized in that the kinematic connection of actuators is coupled to a radial forging machines are made by using at least two drive shafts located symmetrically from the axis of the machine and having an opposite direction of rotation.3. Drive on PP. 1 and 2, characterized in that it is done in a single koogiplaani bearings drive shafts are made detachable, and the engines on top of the chassis-frame.
FIELD: plastic working of metals, possibly forging ingots and billets in hydraulic forging presses.
SUBSTANCE: apparatus includes two holders of upper and lower strikers having inclined surfaces. Said holders are kinematically coupled with two holders of lateral strikers having inclined surfaces corresponding to those of holders of upper and lower strikers. Four strikers are secured to respective holders by means of clamps and tightening studs. Each of upper and lower strikers has two working portions mutually divided by cutout. Each of lateral strikers has one working portion entering cutouts of upper and lower strikers. At least one adjusting plate is placed between holder of lower striker and lower striker. Lower striker is secured to its holder by means of two Г-shaped clamps. Inclined surfaces of said clamps are forced to inclined surfaces of holder of lower striker; riffled surfaces of said clamps are forced to two friction plates arranged on lateral surfaces of lower striker. Pins passing through openings of adjustment plates and entering openings of holder of lower striker are mounted in lower striker.
EFFECT: lowered cost of making tool, reduced time period for readjustment of it.
2 cl, 5 dwg
FIELD: plastic working of metals, namely constructions of radial swaging machines.
SUBSTANCE: in housing of machine four-striker swaging unit is mounted in the form of four kinematically joined one to other holders of strikers with inclined surfaces. Two holders have П-shaped contour, they embrace two other holders of strikers, arranged horizontally and joined with two sliders. The last are mounted with possibility of simultaneous reciprocation motion with the aid of common drive. Said drive is in the form of two crank mechanisms mounted horizontally and symmetrically relative to swaging unit. Strikers are secured to Said holders. Machine also includes devices for controlling position of strikers and for protecting drive members against overloads. Said devices are in the form of movable supports joined with crank mechanisms, screw pair, hydraulic cylinders and gear transmissions with electric drive.
EFFECT: enlarged manufacturing possibilities, enhanced operational reliability and efficiency of machine, simplified design of its drive unit.
FIELD: plastic working of metals, possibly radial forging of ingots and blanks.
SUBSTANCE: method comprises steps of forging heated blank in one set of strikers mounted in simultaneously moving holders at deformation degree 30 - 90%. Forging process includes individual procedures of squeezing blank, feeding and tilting it. Individual squeezing procedures are realized by depth whose value is determined according to given relation. Method is performed in apparatus having strikers with working surface formed by several planes; holders of upper and lower strikers with inclined sliding faces relative to which inclined sliding faces of holders of lateral strikers are moved. Lateral strikers are coupled with holders of upper and lower strikers through eight guides with П-shaped cross section. Strikers have cross sections with working portions in the form of isosceles trapezium. Forming lock joint inner faces of П-shaped guides and embraced by them faces of holders of strikers are inclined by angle 0 - 170° relative to mounting plane of guide to striker holder.
EFFECT: improved efficiency and quality of forging, improved wear resistance of tools.
6 cl, 10 dwg, 1 ex, 3 tbl
FIELD: plastic working of metals, namely production of calibrated forgings with elongated axis from ingots and preliminarily deformed billets in presses of four-striker forging apparatuses.
SUBSTANCE: apparatus includes holders of upper, lower and lateral strikers. Method comprises steps of heating billet and performing rough and calibration forging by passes at feeding billet after each squeezing and tilting between passes; after rough forging of blank with cross section area F = (1.05 - 1.4)Fn where Fn - surface area of cross section of calibrated forging, placing rigid support or supports between holders of upper and lower strikers. Calibration forging operation is realized until closing holder of upper striker with rigid support or supports during one or several passes.
EFFECT: possibility for producing calibrated forged products of different cross section and different size in one set of strikers, enhanced efficiency of method due to absence of period for readjusting tool.
2 cl, 1 dwg, 1 ex, 1 tbl
FIELD: plastic working of metals, possibly forging ingots and billets of different steels and alloys in hydraulic forging presses.
SUBSTANCE: apparatus includes two holders of upper and lower strikers with inclined surfaces and two holders of lateral strikers kinematically coupled with first two holders. Holders of lateral strikers have inclined surfaces corresponding to inclined surfaces of holders of upper and lower strikers. Holders of lateral strikers are mounted on lateral surfaces of holders of upper and lower strikers with use of eight П-shaped cross section guides. Strikers are mounted in holders. Two guides of holders of upper and lower strikers are secured to holder of lower striker symmetrically at both sides. Said guides have П-shaped cross section, they embrace apparatus at lateral and front sides and have movable contact with guides of holders of lateral strikers. Guides of holders of upper and lower strikers have windows in lateral sides in front of holders of lateral strikers for passing holders at opening apparatus.
EFFECT: improved design of apparatus.
2 cl, 8 dwg
SUBSTANCE: facility contains holders of top and bottom heads and two holders of side heads. To holders there are affixed corresponding heads. Heads, fixed to holders, located in one of two mutually perpendicular planes, allows two operating sections. These sections are located from the each side of facility plane of symmetry. Heads, fixed to holders, located in the different plane, allows one operating section each. Current operating section can be located between mentioned two operating sections. In facility there is at least one system for movement at least one head relative to its holder. System contains hydraulic actuator with rod or plunger and control system, hydraulic actuator and facility position measuring of head relative to its holder. Head is connected to rod or plunger of hydraulic actuator with ability of fixed movement relative to corresponding holder in vertical or horizontal symmetry plane of facility. Hydraulic actuators are located in bodies of corresponding holders of heads. In pipelines of operating fluid supply to hydraulic actuators there are built in back pressure valves.
EFFECT: laboriousness reduction of facility repurposing for different dimension type.
10 cl, 12 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and can be used in production of downhole rod pump cylinders. Pipe semis are produced by hot forging at fixed forging mandrel with conical working surface. Locating shank is used for fixing forging mandrel in channel of as-forged part. After channel boring cold radial forging with channel surface broaching is carried out with the help of extra mandrel. Hot and cold forging are performed by hammers at radial forging machine. After every reduction in said hot and cold processes hollow billet and half-blank are fed and edged. Liquid process lubricant is fed in billet deformation area, forged part centering area and broaching area. Feed is performed via radial channels in forging mandrel and centering shank. Start of edging is set to hollow billet and pipe half-blank angle not earlier that the feed start.
EFFECT: accurate sizes, higher surface quality, reliable operation of the machine.
10 cl, 2 dwg
FIELD: technological processes.
SUBSTANCE: technological line of radial forging contains a forging block, a heating device placed on both sides of it along the forging line live rollers and an additional heating device. The latter is in the form of a pusher furnace located along the forging line on the opposite side of the forging block relative to the heating device. There is an additional roller between the live rollers. An additional roller has the ability to connect the live rollers to ensure the movement of workpieces from one roller to another and disconnection. Thrusts are provided which can be mounted on the live rollers line in a position which stops the workpiece in front of the forging unit and in a position which transmits the workpiece from one live roller to another via an additional roller.
EFFECT: expansion of technological possibilities and increase of productivity of a technological line of radial forging.
3 cl, 4 dwg, 1 ex