WO2016132968A1 - 鋳型振動装置 - Google Patents
鋳型振動装置 Download PDFInfo
- Publication number
- WO2016132968A1 WO2016132968A1 PCT/JP2016/053812 JP2016053812W WO2016132968A1 WO 2016132968 A1 WO2016132968 A1 WO 2016132968A1 JP 2016053812 W JP2016053812 W JP 2016053812W WO 2016132968 A1 WO2016132968 A1 WO 2016132968A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- mold
- lubricating oil
- ball
- nut
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/053—Means for oscillating the moulds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0497—Screw mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2031—Actuator casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2043—Screw mechanisms driving an oscillating lever, e.g. lever with perpendicular pivoting axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2096—Arrangements for driving the actuator using endless flexible members
Definitions
- the present invention relates to a mold vibration device that vibrates a mold to reduce friction with a slab surface in a continuous casting apparatus such as steel.
- molten steel is poured from a tundish into a rectangular tube mold, the molten steel is cooled by contact with the mold, and the slab where the unsolidified molten steel exists in the center is continuously downward.
- the molten steel is continuously poured into the mold.
- the slab drawn downward from the mold is sprayed with water and cooled with water.
- the slab is completely solidified, then cut into a predetermined size and transported to the subsequent rolling process. Is done.
- the molten steel comes into contact with the inner surface of the mold and is cooled to form a solidified shell.
- the mold is vibrated up and down (oscillates). (Patent Document 1). Thereby, the slab can be smoothly pulled out from the lower part of the mold without the slab being fixed to the inner surface of the mold.
- FIG. 8 is a schematic diagram showing an eccentric cam type mold vibration device.
- the arm support portion 3 is installed on the partition wall 6.
- one end portion of the sub arm 4 and an intermediate portion of the main arm 5 are swingably supported by the horizontal rotation shafts 3a and 3b provided on the arm support portion 3, respectively.
- the mold 1 is supported on the vibration table 2 and vibrates together with the vibration table 2.
- the other end of the sub arm 4 and one end of the main arm 5 are swingably connected to the horizontal rotation axes a and 2b of the vibration table 2, respectively.
- the main arm 5 and the sub arm 4 constitute a parallel link, and the four points of the rotation shafts 3a, 3b, 2b, and 2a operate in association with each other with a constant distance between them.
- a motor 10 is installed with the rotating shaft horizontal, and an eccentric cam 9 is provided on the rotating shaft of the motor 10.
- the eccentric cam 9 and the rotary shaft 7 at the other end of the main arm 5 are connected by a link 8. Accordingly, when the motor 10 rotates, the eccentric cam 9 rotates, and the link 8 moves up and down via the eccentric cam 9.
- the link 8 moves up and down, the main arm 5 is swung, and the sub arm 4 is swung in conjunction. Thereby, the casting_mold
- FIG. 9 is a schematic diagram showing a hydraulic servo mold vibration device.
- a hydraulic servo cylinder 11 is installed instead of the eccentric cam.
- the upper end of the piston 12 is rotatably connected to the rotating shaft 7, and the other end portion (rotating shaft 7) of the main arm 5 is driven by the piston 12 driven by the hydraulic servo cylinder 11.
- FIG. 10 is a schematic diagram showing an electric servo type mold vibration device.
- an electric servo actuator 20 is installed instead of the eccentric cam of FIG.
- FIG. 11 is a schematic diagram showing the electric servo actuator 20.
- a base 21 is installed on the equipment floor, and a servo motor 22 and a cylinder tube 33 are installed on the base 21.
- the servo motor 22 is arranged so that the rotating shaft 23 is positioned in the base 21 with its axial direction facing vertically downward, and a pulley 24 is attached to the rotating shaft 23.
- the screw shaft 29 of the ball screw is rotatably installed with an angular bearing 55 so that its axial direction is vertical, and a lower portion thereof is disposed in the base 21.
- a pulley 25 is attached to the lower end portion of the screw shaft 29, and a belt 26 is stretched between the pulley 24 and the pulley 25.
- the screw shaft 29 also rotates forward and backward via the belt 26. Accordingly, in the present embodiment, the pulleys 24 and 25 and the belt 26 function as a power transmission mechanism.
- a nut-side shaft 31 is fixed to the ball nut 30 coaxially with the screw shaft 29 on the upper portion of the screw shaft 29 arranged with the central axis vertical.
- the screw shaft 29 is screwed through a ball.
- the ball nut 30 moves up and down by forward and reverse rotation of the screw shaft 29.
- a nut side shaft 31 is fixed to the upper end of the ball nut 30 with its axial direction being vertical, and this nut side shaft 31 is supported by a ball spline 34 so as to be movable up and down.
- the upper end of the nut side shaft 31 protrudes upward from the upper portion of the cylinder tube 33, and the upper end of the nut side shaft 31 is connected to the rotary shaft 7 at the other end of the main arm 5.
- the amplitude of the vibration cannot be changed during the casting operation.
- the time pattern of mold vibration is limited to a sine wave only.
- the mold vibration is controlled by adjusting the control timing of the pressure on the side where the piston 12 of the hydraulic servo cylinder 11 is advanced and the pressure on the side where the piston 12 is retracted. The amplitude can be changed even during the casting operation.
- the pattern of the mold vibration is not limited to the sine wave vibration but can be set to a non-sinusoidal vibration.
- the electric servo mold vibration device can also change the amplitude of the mold vibration during the casting operation, and the pattern of the mold vibration can be set to either sine wave vibration or non-sinusoidal vibration. .
- the hydraulic servo type mold vibration device requires inspection of the filter and hydraulic fluid of the hydraulic servo cylinder 11, and the hydraulic hydraulic fluid requires contamination management.
- the servomotor is rotated forward and reverse to move the nut side shaft 31 up and down.
- the amplitude necessary for mold vibration is as small as about ⁇ 6 mm, for example, and therefore the amplitude at which the rotary shaft 7 of the main arm 5 moves up and down is accordingly small. Therefore, the rocking rotation angle of the screw shaft 29 is small, and continuous operation for a long time is required, and the screw shaft 29 and the ball nut 30 are required to be severely operated.
- ordinary grease is used for lubricating the screw shaft 29 and the ball nut 30.
- the screw shaft 29 is rotated forward and backward repeatedly with a small swinging rotation angle, there is a possibility that oil film breakage may occur when lubricated with grease.
- the present invention has been made in view of such problems, and an object of the present invention is to provide a mold vibration device capable of extending its life in an electric servo mold vibration device that can be easily maintained. To do.
- the mold vibration device includes: In the mold vibration device that vibrates the mold of the continuous casting device, A servo motor, A ball screw unit including a ball screw having a screw shaft and a ball nut, and a nut side shaft fixedly provided on the ball nut coaxially with the screw shaft, the central axis extending in the vertical direction
- the ball nut of the ball screw and the portion of the screw shaft of the ball screw engaged with the ball nut are immersed in lubricating oil so that the ball screw can be lubricated with an oil bath.
- a case surrounding at least a part of the ball screw A lubricating oil tank for storing lubricating oil; A recovery pipe connected to an outlet provided in a lower portion of the case and guiding lubricating oil to the lubricating oil tank; A supply device for supplying the lubricating oil in the lubricating oil tank again into the case from an inlet provided above the outlet of the case; With A second shaft that is the other of the screw shaft and the nut side shaft of the ball screw unit is connected to the mold side.
- a bearing that rotatably supports the first shaft around a central axis thereof, and is fixedly disposed in the middle of the longitudinal direction of the first shaft below the bearing, and includes an inner race and an outer race of the bearing.
- a bearing that has a passage for communicating the gap between the outlet and the outlet and that has a sealing material that contacts the first shaft to prevent the lubricating oil from flowing downward. And a presser.
- a rotary umbrella portion that is provided on a side surface of the first shaft of the ball screw unit and below the bearing holder, has an umbrella shape that extends downward, and rotates together with the first shaft;
- a fixed umbrella part fixedly provided below the rotary umbrella part and having an umbrella shape extending downward, and arranged so that at least a part of the rotary umbrella part overlaps in the radial direction; Further comprising
- the case may be configured such that a discharge port for discharging the lubricating oil received on the fixed umbrella portion to the outside is provided.
- a seal member that seals the gap between the case and the second shaft may be detachably attached.
- a fulcrum is provided at an intermediate portion, one end is connected to the second shaft, and the other end is connected to the mold.
- the arm extends in the lateral direction, and the mold is moved up and down by swinging the arm. And an arm mechanism for applying vibration to the mold.
- a drive shaft that performs forward / reverse rotational motion, a bearing that rotatably supports the drive shaft, a ball screw that is connected to the drive shaft, and a forward / reverse rotational motion that is screwed to the ball screw.
- a ball nut that converts the ball nut into vertical motion, a drive rod that is connected to the ball nut and moves up and down, and engages the drive rod so that it can be moved up and down while disabling rotation of the ball nut. Since the ball splines to be immersed in the lubricating oil in the cases, the operation members in these cases can be sufficiently lubricated. For this reason, the lifetime of each said member as an actuator of a mold vibration apparatus can be prolonged significantly.
- FIG. 1 is a mimetic diagram showing electric actuator 120 of a mold vibration device of an embodiment of the present invention. It is a front sectional view showing electric actuator 120 of this embodiment. It is a partially enlarged view of the same. It is a partially enlarged view of the same. It is the side sectional drawing similarly.
- 3 is a front sectional view of a bearing retainer 80.
- FIG. FIG. 6 is a bottom view of the bearing retainer 80.
- FIG. 1 is a schematic diagram showing a concept of an electric actuator 120 of a mold vibration device according to an embodiment of the present invention.
- the electric actuator 120 of the mold vibration device shown in FIG. 1 is further provided with a lubricating oil tank 41 below the base 21 in the electric actuator 20 shown in FIG. 11, and the lubricating oil in the lubricating oil tank 41 is used in the present invention.
- a pump 40 that circulates and supplies the cylinder tube 33 that functions as a case is installed.
- Lubricating oil pumped by the pump 40 is passed through a filter (not shown), supplied to the upper part of the cylinder tube 33 through the supply pipe 43, and tanked from the lower part of the cylinder tube 33 through the recovery pipe 42. It is collected by 41 and circulated and supplied to lubricate the screw shaft 29 and the ball nut 30.
- the screw shaft 29 and the ball nut 30 are immersed in this lubricating oil bath, the screw shaft 29 and the ball nut 30 are swung at a small rocking rotation angle and operated for a long time. Can be lubricated without causing oil film breakage.
- the supply device includes a supply pipe 43, a pump 40, and a filter (not shown).
- FIG. 2 is a front sectional view showing the electric actuator 120, and FIGS. 3 and 4 are partially enlarged views thereof.
- FIG. 5 is a side sectional view of the same.
- the base 21 is installed on the equipment floor.
- a cylindrical cylinder tube 33 whose center axis is vertical is fixed upright, a bearing support portion 28 is provided at the lower portion of the cylinder tube 33, and an angular bearing 55 is provided inside thereof. It is fitted inside.
- the screw shaft 29 is rotatably supported by an angular bearing 55 with its central axis being vertical.
- the bearing 55 has an outer race 51 that supports the ball 50 from the outside, and an inner race 52 that contacts the outer peripheral surface of the screw shaft 29 and supports the ball 50 from the inside, and is fixed between the inner race 52 and the outer race 51.
- the balls 50 are stored so as not to be detached.
- the screw shaft 29 is supported so as to rotate about the central axis.
- the ball screw of the present invention only needs to be arranged so that the central axis extends in the vertical direction, and can be arranged obliquely, but the central axis of the ball screw is vertical as in this embodiment. By arrange
- a ball nut 30 is disposed inside the cylinder tube 33, and the ball nut 30 is screwed onto the screw shaft 29 via a ball.
- a nut side shaft 31 that is fixed to the ball nut 30 coaxially with the screw shaft 29 is disposed inside the cylinder tube 33.
- the screw shaft 29 functions as the first shaft of the present invention
- the nut side shaft 31 functions as the second shaft.
- a ball spline 34 is fixed to the cylinder tube 33 on the inner surface of the cylinder tube 33 at a position aligned with the nut side shaft 31.
- the nut side shaft 31 is supported by a ball spline 34 so as to be able to reciprocate in the vertical direction and not to rotate. Since the nut side shaft 31 is supported by the ball spline 34 so as not to rotate, the nut side shaft 31 cannot rotate around the central axis. Accordingly, when the screw shaft 29 is reciprocally rotated (oscillating rotation) around the central axis, the ball nut 30 that is screwed onto the screw shaft 29 via the ball moves in the vertical direction at a distance corresponding to the oscillation rotation angle. Move back and forth.
- the nut side shaft 31 Since the nut side shaft 31 is supported by the ball spline 34 so as to be vertically movable and non-rotatable, the nut side shaft 31 fixed to the ball nut 30 moves vertically by the same distance as the ball nut 30. Further, a cylindrical stopper 63 is disposed so as to surround the screw shaft 29.
- a seal member 65 that seals the gap is detachably attached between the cylinder tube 33 and the nut side shaft 31. Since the nut side shaft 31 always vibrates in the vertical direction, the seal member in this portion is heavily worn. By attaching the seal member 65 in a removable manner in this way, it is possible to avoid having to replace the entire cylinder tube 33 due to wear of a portion in contact with the nut side shaft 31 (second shaft). .
- the upper end of the nut side shaft 31 protrudes upward from the upper part of the cylinder tube 33, and the upper end of the nut side shaft 31 is connected to the mold vibration device and the mold side of the mold.
- a connecting portion 61 is provided at the upper end of the nut side shaft 31, and this connecting portion 61 is rotatably connected to the rotating shaft 7 of the main arm 5. Therefore, when the nut side shaft 31 moves up and down, the main arm 5 swings and the mold can be vibrated.
- the mold vibration device is directly connected to the mold trunnion, the upper end of the nut side shaft is directly connected to the mold trunnion. Since the mold and the mold vibration device can be installed in separate sections with the partition wall 6 therebetween, the mold vibration device can be avoided from being installed in a high temperature environment around the mold.
- a motor 22 is installed on the base 21 in parallel with the cylinder tube 33, and a rotating shaft 23 of the motor 22 is inserted into the base 21 with its center of rotation as the vertical direction.
- a pulley 24 is attached to the rotating shaft 23, and a pulley 25 is attached to a portion of the screw shaft 29 inserted into the base 21.
- a belt 26 is stretched between the pulleys 24 and 25, so that when the rotating shaft 23 of the motor 22 rotates and rotates, the rotating rotation is transmitted to the screw shaft 29 via the belt 26. Is done.
- a lubricating oil tank 41 is installed below the base 21, and the lubricating oil in the lubricating oil tank 41 is flown over the cylinder tube 33 by a small pump 40 installed on the lubricating oil tank 41. It is supplied to the inlet 90 (see FIG. 5) via a supply pipe 43 (see FIG. 1). The lubricating oil supplied into the cylinder tube 33 is collected in the lubricating oil tank 41 from the outlet 91 provided at the lower portion of the cylinder tube 33 via the collecting pipe 42 (see FIGS. 1 and 2).
- the position where the inflow port is provided is not particularly limited as long as it is above the outflow port. However, as in this embodiment, a ball spline or the like can be moved up and down and cannot rotate.
- a bearing retainer 80 is fixed to the lower surface of the angular bearing 55.
- FIG. 6 is a front sectional view of the bearing retainer 80
- FIG. 7 is a bottom view of the bearing retainer 80.
- the bearing retainer 80 has an annular shape, and has a three-stage configuration including an inner edge 84 having the smallest diameter on the upper surface, a lower middle edge 82, and a lower lower edge 83.
- An upper edge 85 smaller than the entire outer edge is formed as a step on the upper surface of the bearing retainer 80, and a groove 81 is formed on the radially inner side of the upper edge 85 with the upper surface slightly lowered. .
- the upper edge 85 has the same diameter as the outer edge of the bearing 55, the upper edge 85 is brought into contact with the bearing 55, and the presser 80 is fixed to the lower surface of the bearing support portion 28 by screws.
- a seal 74 is fitted into the middle edge 82 of the presser 80.
- a metal ring 73 is fitted between the seal 74 and the screw shaft 29 so as to be fitted to the screw shaft 29.
- a cylindrical fixing member 76 is fixedly fitted to the screw shaft 29 below the metal ring 73, and forms a conical shape extending downward between the metal ring 73 and the fixing member 76.
- An umbrella-shaped member having a horizontal ring-shaped portion is sandwiched between the two and a rotating umbrella portion 71 is formed.
- the seal 74 is fixed to the presser 80 so as not to be detached from the presser 80 by fixing an annular presser plate 75 to the lower surface of the presser 80 by screwing.
- an oval counterbore portion 85a is formed in a region extending from the groove 81 to the outer side of the upper edge 85 in the radial direction.
- a radial direction is formed in the outer portion.
- the lubricating oil flows out from the outlet 90 through the flow path 87 in the presser 80 and is guided to the lubricating oil tank 41 by the recovery pipe 42.
- the rotating umbrella portion 71 has a conical shape extending downward, and an umbrella-shaped member having a horizontal ring-shaped portion at its upper end is externally fitted to the screw shaft 29, and the horizontal ring-shaped portion is connected to the metal ring 73 and the fixing member 76. And an umbrella-shaped member is fixed to the screw shaft 29.
- the fixed umbrella portion 72 has an umbrella shape having a conical portion 72b that extends downward at the same angle as the conical portion of the rotating umbrella portion 71, and a horizontal portion 72a that extends horizontally outward from the lower end of the conical portion 72b. This is formed by fixing the horizontal portion 72 a of the member to the upper surface of the base 21.
- a hole 70 through which the screw shaft 29 is inserted is formed in the upper wall of the base 21, and the horizontal portion 72 a of the umbrella-shaped member forming the fixed umbrella portion 72 is fixed to the peripheral portion of the hole 70.
- the rotating umbrella portion 71 that rotates together with the screw shaft 29 and the fixed umbrella portion 72 that is fixed to the base 21 have the rotating umbrella portion 71 facing upward, and at least a portion of the conical portion in the radial direction is the entire circumference. It is arranged overlapping.
- the bearing support portion 28 is provided with a discharge port 93 for discharging the lubricating oil received on the fixed umbrella portion 72 to the outside.
- the lubricating oil leaks from the inner edge of the presser 80 onto the rotary umbrella portion 71 due to deterioration of the seal 74 or the like, it flows from the conical portion of the rotary umbrella portion 71 to the conical portion of the fixed umbrella portion 72. Then, it is guided onto the horizontal portion 72 a of the fixed umbrella portion 72 and discharged from the discharge port 93 to the outside. Therefore, even when the lubricating oil leaks downward from the inner edge of the presser 80 in this manner, the lubricating oil does not leak down to the lower portion of the fixed umbrella portion 72 and reach the pulley 25 or the belt 26. In the present embodiment, the lubricating oil discharged to the outside from the discharge port 93 is discarded outside without being collected in the lubricating oil tank.
- the screw shaft 29 and the ball nut 30 operate in a state of being immersed in the lubricating oil, the wear is remarkably reduced. Thereby, the lifetime of the actuator of the mold vibration device can be extended. Further, by providing the rotating umbrella portion 71 and the fixed umbrella portion 72, the lubricating oil is more reliably sealed to prevent entry into the base 21 and adhere to the pulleys 24, 25 and the belt 26 in the base 21. Thus, it is possible to prevent the operation from being hindered and the belt from being deteriorated.
- the first shaft which is one of the screw shaft and the nut side shaft constituting the ball screw unit of the present invention and disposed on the lower side, is a screw shaft.
- the nut side shaft may be arranged on the lower side to serve as the first shaft. That is, the ball screw unit may be installed upside down in the case of the above embodiment.
- the outlet of the present invention is provided below the bearing in the lower part of the case.
- the upper end or the lower end of the bearing is sealed in a liquid-tight manner, It is also possible to provide an outlet on the upper side of the bearing.
- a foreign substance is formed in the bearing by providing an outlet on the lower side of the bearing and allowing the lubricating oil to flow out and collected through the gap between the inner race and the outer race of the bearing. Can be prevented from accumulating.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
- Continuous Casting (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
連続鋳造装置の鋳型を振動させる鋳型振動装置において、
サーボモータと、
ねじ軸及びボールナットを有するボールねじと、前記ねじ軸と同軸的に前記ボールナットに固定的に設けられたナット側軸とを含み、中心軸が上下方向に延びるように配置されたボールねじユニットと、
前記ボールねじユニットの前記ねじ軸と前記ナット側軸とのうちの一方であって下側に配置された方である第1軸に前記サーボモータの回転軸から回転運動を伝達する動力伝達機構と、
前記ボールねじの前記ボールナットと、前記ボールねじの前記ねじ軸のうち前記ボールナットが係合している部分とを潤滑油に浸して前記ボールねじを油浴により潤滑可能とするよう構成された、前記ボールねじの少なくとも一部を囲うケースと、
潤滑油を貯留する潤滑油タンクと、
前記ケースの下部に設けられた流出口に接続され、潤滑油を前記潤滑油タンクに導く回収管と、
前記潤滑油タンク内の潤滑油を前記ケースの前記流出口よりも上方に設けられた流入口から前記ケース内に再び供給する供給装置と、
を備え、
前記ボールねじユニットの前記ねじ軸と前記ナット側軸とのうちの他方である第2軸が前記鋳型側に連結されていることを特徴とする。
前記第1軸をその中心軸の周りに回転可能に支持する軸受と、 この軸受の下方における前記第1軸の長手方向の途中に固定的に配置され、前記軸受の内側レースと外側レースとの間の隙間と前記流出口とを連通させるための流路が内部に形成されるとともに、前記第1軸に接触するシール材を有して、下方に前記潤滑油が流出することを防止する軸受押さえと、を備えていてもよい。
前記ボールねじユニットの前記第1軸の側面であって前記軸受押さえより下側の部分に設けられ、下方に広がる傘形状を有しており、前記第1軸と共に回転する回転傘部と、
該回転傘部の下方に固定的に設けられ、下方に広がる傘形状を有しており、前記回転傘部と半径方向において少なくとも一部が重なるように配置された固定傘部と、
をさらに備え、
前記ケースには、前記固定傘部の上で受けた潤滑油を外部に排出する排出口が設けられているように構成することができる。
前記ケースと前記第2軸との間の隙間をシールするシール部材が、着脱可能に取り付けられていてもよい。
中間部に支点が設けられ、一端が前記第2軸に連結されると共に他端が前記鋳型に連結された、横方向に延びるアームを有し、前記アームの揺動により前記鋳型を上下動させて前記鋳型に振動を付与するアーム機構をさらに備えていてもよい。
7:回転軸
21:ベース
22:モータ
23:回転軸
24,25:プーリ
26:ベルト
28:軸受支持部
29:ねじ軸
30:ボールナット
31:ナット側軸
32:ボールねじ
33:シリンダチューブ
34:ボールスプライン
40:ポンプ
41:潤滑油タンク
42:回収管
43:供給管
50:ボール
51:外側レース
52:内側レース
55:アンギュラ軸受
87:流路
90:流入口
91:流出口
93:排出口
120:電動アクチュエータ
Claims (5)
- 連続鋳造装置の鋳型を振動させる鋳型振動装置において、
サーボモータと、
ねじ軸及びボールナットを有するボールねじと、前記ねじ軸と同軸的に前記ボールナットに固定的に設けられたナット側軸とを含み、中心軸が上下方向に延びるように配置されたボールねじユニットと、
前記ボールねじユニットの前記ねじ軸と前記ナット側軸とのうちの一方であって下側に配置された方である第1軸に前記サーボモータの回転軸から回転運動を伝達する動力伝達機構と、
前記ボールねじの前記ボールナットと、前記ボールねじの前記ねじ軸のうち前記ボールナットが係合している部分とを潤滑油に浸して前記ボールねじを油浴により潤滑可能とするよう構成された、前記ボールねじの少なくとも一部を囲うケースと、
潤滑油を貯留する潤滑油タンクと、
前記ケースの下部に設けられた流出口に接続され、潤滑油を前記潤滑油タンクに導く回収管と、
前記潤滑油タンク内の潤滑油を前記ケースの前記流出口よりも上方に設けられた流入口から前記ケース内に再び供給する供給装置と、
を備え、
前記ボールねじユニットの前記ねじ軸と前記ナット側軸とのうちの他方である第2軸が前記鋳型側に連結されていることを特徴とする鋳型振動装置。 - 前記第1軸をその中心軸の周りに回転可能に支持する軸受と、この軸受の下方における前記第1軸の長手方向の途中に固定的に配置され、前記軸受の内側レースと外側レースとの間の隙間と前記流出口とを連通させるための流路が内部に形成されるとともに、前記第1軸に接触するシール材を有して、下方に前記潤滑油が流出することを防止する軸受押さえと、を備えることを特徴とする請求項1に記載の鋳型振動装置。
- 前記ボールねじユニットの前記第1軸の側面であって前記軸受押さえより下側の部分に設けられ、下方に広がる傘形状を有しており、前記第1軸と共に回転する回転傘部と、
該回転傘部の下方に固定的に設けられ、下方に広がる傘形状を有しており、前記回転傘部と半径方向において少なくとも一部が重なるように配置された固定傘部と前記回転傘部と同一の開度で下方に広がる傘形状を有し、前記回転傘部の一部と前記回転傘部の下方にて重なるように固定的に配置された固定傘部と、
をさらに備え、
前記ケースには、前記固定傘部の上で受けた潤滑油を外部に排出する排出口が設けられていることを特徴とする請求項2に記載の鋳型振動装置。 - 前記ケースと前記第2軸との間の隙間をシールするシール部材が、着脱可能に取り付けられていることを特徴とする請求項1から3のいずれか1項に記載の鋳型振動装置
- 中間部に支点が設けられ、一端が前記第2軸に連結されると共に他端が前記鋳型に連結された、横方向に延びるアームを有し、前記アームの揺動により前記鋳型を上下動させて前記鋳型に振動を付与するアーム機構をさらに備えることを特徴とする請求項1から4のいずれか1項に記載の鋳型振動装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16752354.7A EP3260219B1 (en) | 2015-02-19 | 2016-02-09 | Mold vibrating device |
KR1020177022763A KR101941395B1 (ko) | 2015-02-19 | 2016-02-09 | 주형 진동 장치 |
US15/552,144 US10189078B2 (en) | 2015-02-19 | 2016-02-09 | Mold oscillator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-030292 | 2015-02-19 | ||
JP2015030292A JP6522362B2 (ja) | 2015-02-19 | 2015-02-19 | 鋳型振動装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016132968A1 true WO2016132968A1 (ja) | 2016-08-25 |
Family
ID=56689139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/053812 WO2016132968A1 (ja) | 2015-02-19 | 2016-02-09 | 鋳型振動装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10189078B2 (ja) |
EP (1) | EP3260219B1 (ja) |
JP (1) | JP6522362B2 (ja) |
KR (1) | KR101941395B1 (ja) |
TR (1) | TR201902250T4 (ja) |
WO (1) | WO2016132968A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107477156A (zh) * | 2017-09-22 | 2017-12-15 | 广东凯宝机器人科技有限公司 | 一种减速机构 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63256242A (ja) * | 1987-04-15 | 1988-10-24 | Sumitomo Heavy Ind Ltd | モ−ルドオシレ−シヨン装置の駆動方式 |
JP2003220638A (ja) * | 2002-01-29 | 2003-08-05 | Sumitomo Heavy Ind Ltd | 射出成形機の潤滑装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US671553A (en) * | 1901-01-28 | 1901-04-09 | Joseph B Haug | Vehicle-shaft. |
US4727924A (en) * | 1986-10-08 | 1988-03-01 | Georgetown Steel Corporation | Mold oscillator |
US4945975A (en) * | 1988-12-08 | 1990-08-07 | Kawasaki Steel Corporation | Method of oscillation of mold of vertical continuous caster |
TW274529B (ja) * | 1993-10-21 | 1996-04-21 | Hitachi Shipbuilding Eng Co | |
DE19515316C1 (de) * | 1995-04-19 | 1996-08-29 | Mannesmann Ag | Verfahren zum Betreiben einer Kokille |
US5809838A (en) * | 1995-05-30 | 1998-09-22 | Nsk Ltd. | Ball screw device with means for maintaining balance |
JP3026173B2 (ja) * | 1997-04-22 | 2000-03-27 | 住友重機械工業株式会社 | モールドオシレーション駆動制御装置 |
DE19940997A1 (de) * | 1999-08-28 | 2001-03-01 | Sms Demag Ag | Einrichtung zum Stranggießen von Metall |
-
2015
- 2015-02-19 JP JP2015030292A patent/JP6522362B2/ja active Active
-
2016
- 2016-02-09 WO PCT/JP2016/053812 patent/WO2016132968A1/ja active Application Filing
- 2016-02-09 TR TR2019/02250T patent/TR201902250T4/tr unknown
- 2016-02-09 US US15/552,144 patent/US10189078B2/en active Active
- 2016-02-09 KR KR1020177022763A patent/KR101941395B1/ko active IP Right Grant
- 2016-02-09 EP EP16752354.7A patent/EP3260219B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63256242A (ja) * | 1987-04-15 | 1988-10-24 | Sumitomo Heavy Ind Ltd | モ−ルドオシレ−シヨン装置の駆動方式 |
JP2003220638A (ja) * | 2002-01-29 | 2003-08-05 | Sumitomo Heavy Ind Ltd | 射出成形機の潤滑装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107477156A (zh) * | 2017-09-22 | 2017-12-15 | 广东凯宝机器人科技有限公司 | 一种减速机构 |
Also Published As
Publication number | Publication date |
---|---|
KR101941395B1 (ko) | 2019-01-22 |
US20180043425A1 (en) | 2018-02-15 |
JP2016150372A (ja) | 2016-08-22 |
EP3260219B1 (en) | 2019-01-23 |
EP3260219A1 (en) | 2017-12-27 |
EP3260219A4 (en) | 2018-03-14 |
TR201902250T4 (tr) | 2019-03-21 |
US10189078B2 (en) | 2019-01-29 |
KR20170105076A (ko) | 2017-09-18 |
JP6522362B2 (ja) | 2019-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20160030953A1 (en) | Centrifuge having a lubricant system | |
WO2016132969A1 (ja) | 鋳型振動装置 | |
JP2015089525A (ja) | 遠心分離装置 | |
JP2021516607A (ja) | 衛生混合器 | |
CN102127894B (zh) | 振动压路机激振器油斗式自润滑系统 | |
WO2016132968A1 (ja) | 鋳型振動装置 | |
JP2015031292A (ja) | 流体静力学式のアキシャルピストン機械 | |
JP6103458B2 (ja) | コーン型クラッシャー | |
US4288165A (en) | Vibratory actuator incorporating hydrodynamic journal bearing | |
JP2010194637A (ja) | 平面研削盤の反転テーブル装置 | |
CN111872341A (zh) | 一种具有消泡功能的液压铸造设备 | |
CN202173965U (zh) | 卧式珠磨机 | |
KR101866912B1 (ko) | 레버형 쌍원통 펌프 | |
RU2376104C2 (ru) | Кристаллизатор для непрерывной разливки с устройством качания | |
JP2004084691A (ja) | ロータリージョイント | |
CN209632746U (zh) | 一种航空用轴承套圈外圈磨床 | |
JP2016090060A (ja) | 製氷機 | |
JP2016150373A5 (ja) | ||
US1125483A (en) | Pump. | |
RU2751497C1 (ru) | Осциллятор для генерирования продольных механических колебаний | |
JP5332710B2 (ja) | 平面研削盤の反転テーブル装置 | |
CN201990920U (zh) | 振动压路机激振器油斗式自润滑系统 | |
JP2016136084A (ja) | 粉体冷却器 | |
JP2022106550A (ja) | スクリーン洗浄装置、および、固液分離装置 | |
JPH0752478Y2 (ja) | エア・オイル潤滑装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16752354 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20177022763 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15552144 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2016752354 Country of ref document: EP |