WO2019045299A1 - Dispositif de transmission de puissance - Google Patents

Dispositif de transmission de puissance Download PDF

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Publication number
WO2019045299A1
WO2019045299A1 PCT/KR2018/008889 KR2018008889W WO2019045299A1 WO 2019045299 A1 WO2019045299 A1 WO 2019045299A1 KR 2018008889 W KR2018008889 W KR 2018008889W WO 2019045299 A1 WO2019045299 A1 WO 2019045299A1
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WO
WIPO (PCT)
Prior art keywords
gear
bevel gear
vertical distance
external
circumscribed
Prior art date
Application number
PCT/KR2018/008889
Other languages
English (en)
Korean (ko)
Inventor
조광호
Original Assignee
조광호
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020170111279A external-priority patent/KR101943609B1/ko
Priority claimed from KR1020170146068A external-priority patent/KR101926167B1/ko
Application filed by 조광호 filed Critical 조광호
Publication of WO2019045299A1 publication Critical patent/WO2019045299A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/02—Driving gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
    • B66D3/16—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable operated by an endless chain passing over a pulley or a sprocket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists
    • B66D3/26—Other details, e.g. housings
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion

Definitions

  • the present invention relates to a power transmission apparatus, and more particularly, to a power transmission apparatus having a function of a speed reducer and capable of adjusting the magnitude of an external force for raising and lowering a heavy object,
  • a gear reducer or a reduction gear is a device for increasing the torque by reducing the number of revolutions (rpm) of the motor by configuring gears having different gear ratios.
  • a speed reducer is also used for lifting or lowering a heavy heavy object.
  • a worm reducer which adds a brake function to the speed reducer or which can not be reversed is used.
  • a brake device is constituted on the side of a gear box, and a worm speed reducer which can not be mainly reversed is used for an elevator and an escalator.
  • Korean Patent Publication No. 2003-005679 Patent Document 1 can be cited as an example of a decelerating device.
  • Such a worm gear type is a selection for preventing fall during operation.
  • a worm reducer having a large frictional force can increase a reduction ratio, but since it transmits power by friction, the transmission efficiency is low and heat is easily generated, so that the life of the gear is short and energy loss is large.
  • the conventional speed reducer or reduction device can realize this by manually lifting the chain when the heavy weight is lifted or lowered. At this time, the moving distance of the chain and the lifting distance of the heavy weight are always set to a constant value.
  • the conventional reducer or the speed reducer can not change the relationship between the movement distance of the chain and the lift distance of the heavy object.
  • the operator must have a plurality of decelerators in a specific working environment.
  • the input side gear portion is rotated by the power applied from the outside, and the transmission side gear portion disposed to be engaged with the input side gear portion is rotated by the rotation of the input side gear portion, wherein the output side gear portion is rotated by the rotation of the side gear portion and then the output side gear portion is rotated by the rotation of the output side gear portion, wherein the output portion is connected to the output side gear portion and is rotated by revolution of the gear included in the output side gear portion, and the power transmission device is configured such that, after the power is interrupted, When the forcible external force acts on the output section, the rotation of the output section due to the forced external force is disturbed, At least two or more selected from among a distance between a coupling point of the input side gear portion and the transmission side gear portion, a distance between a coupling point of the input side gear portion and the output side gear portion, and a coupling point of the transmission side gear portion and the output side gear portion And the first condition is satisfied.
  • a power transmission apparatus includes: a sun gear having a first external gear and a second external gear on one side and the other side of an outer peripheral surface; A ring gear disposed on the outside of the sun gear and having a first internal gear and a second internal gear on one side and the other side of the inner peripheral surface; A first intermediate gear disposed to mesh with the first external gear and the first internal gear and rotated with respect to an axis on which the position is fixed; And a second intermediate gear disposed to be engaged with the second external gear and the second internal gear and capable of rotating and revolving, wherein the first external gear and the second external gear are disposed coaxially ,
  • the input side gear portion includes one of the first external gear, the first intermediate gear, and the first internal gear, the output side gear portion includes the second intermediate gear, And a gear other than the input side gear portion and the output side gear portion, wherein the predetermined first condition is the following conditional expression.
  • A is a vertical distance between the coupling points of the first external gear and the first intermediate gear at the center axis of the coaxial shaft
  • B is a vertical distance between the first intermediate gear and the first internal gear
  • C is a vertical distance between the tooth joint points of the second external gear and the second intermediate gear at the central axis
  • D is a vertical distance between the tooth joint points of the second intermediate gear and the second internal gear at the center axis
  • the power transmission device includes a first sun gear having a first circumscribed bevel gear and a second circumscribed bevel gear formed on one side and the other side of an outer circumferential surface, Is disposed coaxially; A first outer circumference bevel gear and a second outer circumference bevel gear; and a third circumscribed bevel gear disposed between the first circumscribed bevel gear and the second circumscribed bevel gear or rotatably on the coaxial outer side of the first circumscribed bevel gear and the second circumscribed bevel gear, A bevel gear and a fourth circumscribed bevel gear; A first intermediate bevel gear disposed to mesh with the first circumscribed bevel gear and the third circumscribed bevel gear and rotated about a fixed axis; And a second intermediate bevel gear disposed to mesh with the second circumferential bevel gear and the fourth circumferential bevel gear, and capable of rotating and revolving, and the input side gear portion includes a first outer bevel gear, Wherein the output side gear portion includes the second intermediate bevel gear
  • A is an average vertical distance between the tooth joint points of the first circumscribed bevel gear and the first intermediate bevel gear at the central axis of the coaxial axis
  • B is the mean vertical distance between the first intermediate bevel gear and the third circumscribed bevel gear at the central axis
  • C is an average vertical distance between the tooth joint points of the second circumferential bevel gear and the second intermediate bevel gear at the center axis
  • D is an average vertical distance between the teeth of the fourth circumferential bevel gear And an average vertical distance between the tooth point of the second intermediate bevel gear.
  • the first middle bevel gear of the power transmission apparatus includes a first inner middle bevel gear and a first outer middle bevel gear located on the inner side and the outer side with respect to the fixed axis
  • A is an average vertical distance between a tooth joint point of the first outer bevel gear and the first inner intermediate bevel gear at the central axis
  • B is an average vertical distance between the first outer intermediate bevel gear and the second intermediate bevel gear at the center axis
  • the average vertical distance between the tangent points of the third circumscribed bevel gears is an average vertical distance between the tangent points of the third circumscribed bevel gears.
  • the second intermediate bevel gear of the power transmission apparatus includes a second inner middle bevel gear and a second outer intermediate bevel gear located respectively on the inner side and the outer side, Axis of the first outer bevel gear and the second inner intermediate bevel gear, and D is an average vertical distance between the tooth joint points of the fourth circumscribed bevel gear and the second outer bevel gear at the center axis And is an average vertical distance.
  • the power transmission device includes a sun gear having a first external bevel gear and a second external gear at one side and the other side of the outer circumferential surface, the first external bevel gear and the second external gear being coaxial Deployed -; A ring gear rotatably disposed on the coaxial shaft and having a third circumscribed bevel gear and a fourth internally engaged gear on one side and the other side, respectively; A first intermediate bevel gear disposed to mesh with the first circumscribed bevel gear and the third circumscribed bevel gear and rotated about a fixed axis; And a second intermediate gear disposed to be engaged with the second external gear and the fourth internal gear and capable of rotating and revolving, and the input side gear portion includes a first external bevel gear, And the ring gear, wherein the output side gear portion includes the second intermediate gear, and the transmission side gear portion includes gears other than the input side gear portion and the output side gear portion, and the predetermined gear
  • the first condition is characterized by being the following conditional expression.
  • A is an average vertical distance between the tooth joint points of the first circumscribed bevel gear and the first intermediate bevel gear at the central axis of the coaxial axis
  • B is the mean vertical distance between the first intermediate bevel gear and the third circumscribed bevel gear at the central axis
  • C is the vertical distance between the tooth joint points of the second external gear and the second intermediate gear at the central axis
  • D is the vertical distance between the second intermediate gear and the fourth intermediate gear at the center axis
  • the first middle bevel gear of the power transmission apparatus includes a first inner middle bevel gear and a first outer middle bevel gear located on the inner side and the outer side with respect to the fixed axis
  • A is an average vertical distance between a tooth joint point of the first outer bevel gear and the first inner intermediate bevel gear at the central axis
  • B is an average vertical distance between the first outer intermediate bevel gear and the second intermediate bevel gear at the center axis
  • the average vertical distance between the tangent points of the third circumscribed bevel gears is an average vertical distance between the tangent points of the third circumscribed bevel gears.
  • a power transmission device includes a sun gear having a first external gear and a second external bevel gear formed on one side and the other side of an outer circumferential surface, the first external gear and the second external bevel gear being coaxial Deployed -; A ring gear rotatably disposed on the coaxial shaft and having a third internal gear and a fourth external bevel gear formed on one side and the other side, respectively; A first intermediate gear disposed to mesh with the first external gear and the third internal gear and rotated with respect to an axis on which the position is fixed; And a second intermediate bevel gear disposed to mesh with the second circumscribed bevel gear and the fourth circumscribed bevel gear, and capable of rotating and revolving, wherein the input side gear portion includes a first external gear, Wherein the output side gear portion includes the second intermediate bevel gear and the transmission side gear portion includes gears other than the input side gear portion and the output side gear portion,
  • the first predetermined condition may be characterized by being the following conditional expression.
  • A is the vertical distance between the first external gear and the first intermediate gear at the center axis of the coaxial shaft
  • B is the vertical distance between the first intermediate gear and the third internal gear
  • C is an average vertical distance between the tooth joint points of the second circumferential bevel gear and the second intermediate bevel gear on the central axis
  • D is a mean vertical distance between the second intermediate bevel gear and the fourth circumscribed bevel gear
  • Average vertical distance between the gear teeth
  • the second intermediate bevel gear of the power transmission apparatus includes a second inner middle bevel gear and a second outer intermediate bevel gear located respectively on the inner side and the outer side, Axis of the first outer bevel gear and the second inner intermediate bevel gear, and D is an average vertical distance between the tooth joint points of the fourth circumscribed bevel gear and the second outer bevel gear at the center axis And is an average vertical distance.
  • the power transmission apparatus can realize the function of the speed reducer and automatically prevent rotation of the output unit even if a forced external force is applied to the output unit after the power for implementing the function of the speed reducer is cut off.
  • the power transmission device according to the present invention when the power transmission device according to the present invention is applied to an elevator, an escalator, a hoist, or the like, an additional device such as a brake is not required, and the best safety can be secured with a small cost .
  • the power transmission apparatus makes it possible to adjust the magnitude of the external force for raising and lowering a heavy object, thereby improving the user's convenience.
  • FIG. 1 is a schematic sectional view showing a power transmitting apparatus according to a first embodiment of the present invention in which a rotation axis of a motor is connected to a first external gear;
  • FIGS. 2 to 7 are schematic sectional views showing a power transmitting apparatus according to a second embodiment of the present invention in which the rotation axis of a motor is connected to a first circumscribed bevel gear.
  • FIGS. 8 and 9 are schematic cross-sectional views illustrating a power transmitting apparatus according to a third embodiment of the present invention in which the rotational axis of a motor is connected to a first circumscribed bevel gear.
  • FIGS. 10 and 11 are schematic sectional views showing a power transmitting apparatus according to a fourth embodiment of the present invention in which the rotation axis of a motor is connected to a first external gear;
  • FIG. 12 to 22 are schematic sectional views showing that the power transmission device according to each of Figs. 1 to 11 is utilized in a chain block.
  • Fig. 12 to 22 are schematic sectional views showing that the power transmission device according to each of Figs. 1 to 11 is utilized in a chain block.
  • the input side gear portion is rotated by the power applied from the outside, and the transmission side gear portion disposed to be engaged with the input side gear portion is rotated by the rotation of the input side gear portion, wherein the output side gear portion is rotated by the rotation of the side gear portion and then the output side gear portion is rotated by the rotation of the output side gear portion, wherein the output portion is connected to the output side gear portion and is rotated by revolution of the gear included in the output side gear portion, and the power transmission device is configured such that, after the power is interrupted, When the forcible external force acts on the output section, the rotation of the output section due to the forced external force is disturbed, At least two or more selected from among a distance between a coupling point of the input side gear portion and the transmission side gear portion, a distance between a coupling point of the input side gear portion and the output side gear portion, and a coupling point of the transmission side gear portion and the output side gear portion And the first condition is satisfied.
  • the power transmission apparatus may be a kind of gear reducer that uses a plurality of gears to reduce the motor power of the prime mover at a predetermined reduction ratio and amplify the torque.
  • the power transmitting device rotates the input side gear portion by the power applied from the outside, and the transmission side gear portion which is engaged with the input side gear portion is rotated by the rotation of the input side gear portion, And the output gear connected to the output side gear part is rotated by the rotation of the output side gear part after the output side gear part engaged with the transmission side gear part is rotated by the output side gear part.
  • the input side gear portion, the transmission side gear portion, and the output side gear portion may be implemented by various kinds of gears or a combination thereof.
  • a spur gear an internal gear, a helical gear, a bevel gear, Various gears can be applied.
  • the output side gear portion may include a gear capable of rotating and revolving.
  • the output portion may be connected to the output side gear portion by a kind of carrier and may be rotated by revolving the gear included in the output side gear portion.
  • the power transmission device may further include a control unit for controlling the output of the input gear unit and the transmission gear unit so that rotation of the output unit due to the forced external force is interrupted when a forced external force is applied to the output unit after the power is interrupted,
  • the distance between the input side gear portion and the output side gear portion, and the distance between the transmission side gear portion and the output side gear portion may satisfy the first predetermined condition.
  • the predetermined first condition may be varied depending on the type of the gears constituting the input side gear portion, the transmission side gear portion, and the output side gear portion.
  • the power transmission device according to the present invention when used for an elevator, for example, it is possible to effectively prevent the output part from being rotated due to the own weight of the elevator without a separate brake device.
  • FIG. 1 is a schematic sectional view showing a power transmitting apparatus according to a first embodiment of the present invention in which a rotation shaft of a motor is connected to a first external gear;
  • a power transmission apparatus 100 includes a sun gear 110, a ring gear 120, a first intermediate gear 130, and a second intermediate gear 140 .
  • the sun gear 110 may have a first external gear 112 and a second external gear 114 on one side and the other side of the outer circumferential surface, respectively.
  • the first external gear 112 and the second external gear 114 may be coaxially mounted on a housing (not shown) so as to be rotatable, and may be formed as a single member.
  • first external gear 112 and the second external gear 114 do not necessarily have to be formed as one member, but may be formed to be coupled to a cylindrical coaxial shaft and rotate in conjunction with the cylindrical coaxial shaft, Do.
  • the first external gear 112 and the second external gear are realized as a spur gear or a helical gear, the first external gear 112 is a spur gear, the second external gear 114 is a helical gear, . Of course, the opposite case is possible.
  • the ring gear 120 may be disposed on the outer side of the sun gear 110 and may include a first internal gear 122 and a second internal gear 124 on one side and the other side of the inner peripheral surface.
  • the first internal gear 122 and the second internal gear 124 may be implemented as spur gears or helical gears, but may be formed of the same material as that of the first external gear 112 and the second external gear 114, respectively. It is preferable to be implemented as a gear.
  • the first intermediate gear 130 may be arranged to be engaged with the first external gear 112 and the first internal gear 122 and may be fixedly mounted on a housing (not shown) And may be rotated about an axis 132.
  • the first intermediate gear 130 may be implemented by gears of the same kind as the first external gear 112 and the first internal gear 122, and the number is not limited.
  • the second intermediate gear 140 may be disposed so as to be engaged with the second external gear 114 and the second internal gear 124 and may be a kind of one that can rotate and revolve May be a planetary gear.
  • the ring gear 120, the first intermediate gear 130 and the second intermediate gear 140 having the second internal gear 124 can constitute the input side gear portion, the transmission side gear portion and the output side gear portion, This will be described in detail below.
  • the first external gear 112 may correspond to the input side gear portion.
  • the first external gear 112 may be connected to a rotation shaft of a motor for generating a rotational force of a prime mover or the like and rotated in conjunction with rotation of the rotation shaft.
  • the second intermediate gear 140 may correspond to the output side gear portion.
  • the number of the second intermediate gears 140 is not limited.
  • the second intermediate gear 140 may be formed of a plurality of at least two gears for connection with the carrier 150 as the output portion 150.
  • the gears other than the first external gear 112 and the second intermediate gear 140 that is, the second external gear 114, the ring gear 120, and the first intermediate gear 130, May correspond to the transmission side gear portion.
  • the rotating shaft is rotated clockwise (X1) by the power of the motor
  • the first external gear 112 connected to the rotating shaft is also rotated in the clockwise direction.
  • the second external gear 114 disposed coaxially is also rotated in the clockwise direction.
  • the first external gear 112 which is meshed with the first external gear 112
  • the gear 130 is rotated about the axis 132 fixed in the counterclockwise direction.
  • first internal gear 122 and the second internal gear 124 are rotated clockwise, and the second intermediate gear 140 is rotated in the clockwise direction while revolving in the clockwise direction.
  • the second intermediate gear 140 is simultaneously rotated and revolved in the clockwise direction by the rotation of the second external gear 114 and the second internal gear 124,
  • the output unit 150 connected to the second intermediate gear 140, that is, the carrier 150 is also rotated clockwise.
  • a wire of an elevator can be wound on the carrier 150, and the elevator can be raised and lowered by the rotation of the carrier 150.
  • the rotation speed of the carrier 150 may be different from the rotation speed of the rotation shaft due to the power of the motor. If the rotation speed of the carrier 150 is less than the rotation speed of the rotation shaft due to the power of the motor, The power transmitting apparatus 100 according to the first embodiment of the invention realizes the function of the speed reducer.
  • the reduction ratio is determined by the ratio between the first external gear 112, the second external gear 114, the first internal gear 122, the second internal gear 124, the first intermediate gear 130,
  • the diameter and the like of the intermediate gear 140 and a person skilled in the art can set the diameters of the gears or the like based on a desired reduction ratio.
  • the rotation speed of the carrier 150 may be the same as the rotation speed of the rotation shaft due to the power of the motor in the power transmission apparatus 100 according to the first embodiment of the present invention.
  • the power transmission apparatus 100 can be applied to a case where even when a forced external force acts on the carrier 150 after the power of the motor is shut off, a first predetermined condition The carrier 150 is not rotated.
  • A is a vertical distance between the coupling points of the first external gear and the first intermediate gear at the center axis of the coaxial shaft
  • B is a vertical distance between the first intermediate gear and the first internal gear
  • C is a vertical distance between the tooth joint points of the second external gear and the second intermediate gear at the central axis
  • D is a vertical distance between the tooth joint points of the second intermediate gear and the second internal gear at the center axis
  • the carrier 150 may not be rotated. If the wire of the elevator is wound on the carrier 150, the elevator may be operated without a separate brake device It is possible to prevent the elevator from being lowered due to its own weight when the power is interrupted.
  • the power transmission apparatus 100 is configured such that, in addition to the function of the speed reducer, It is also possible to provide a function of forcibly preventing the rotation when it is interrupted.
  • the rotating shaft rotated by the power of the motor may be a shaft 132 fixed at a position rotatably mounted on the housing (not shown) to which the first intermediate gear 130 is coupled.
  • the first intermediate gear 130 may correspond to an input side gear portion.
  • the sun gear 110 and the ring gear 120 may correspond to the transmission gear portion, and the second intermediate gear 140 may correspond to the output gear portion.
  • the rotation shaft rotated by the power of the motor may be connected to the first internal gear 122, and in this case, the first internal gear 122 may correspond to the input side gear portion.
  • the sun gear 110, the second internal gear 124, and the first intermediate gear 130 may correspond to the transmitting side gear portion, and the second intermediate gear 140 may correspond to the output side gear portion .
  • the rotary shaft rotated by the power of the motor when connected to the first internal gear 122, it can be handled in the same manner as the result connected to the second internal gear 124, and eventually, The rotating shaft can be handled the same as that connected to the ring gear 120.
  • the carrier 150 can not rotate despite the external force acting on the carrier 150.
  • the first external gear 112 may correspond to the first intermediate gear 130, and the first external gear 112 may correspond to the first intermediate gear 130.
  • the beam can be made larger.
  • FIGS. 2 to 7 are schematic sectional views showing a power transmitting apparatus according to a second embodiment of the present invention in which the rotation axis of a motor is connected to a first circumscribed bevel gear.
  • the power transmission apparatus 200 may be implemented by a combination of bevel gears, and may include a first sun gear 210, a second sun gear 220, 1 middle bevel gear 230 and a second intermediate bevel gear 240.
  • the first sun gear 210 may include a first circumscribed bevel gear 212 and a second circumscribed bevel gear 214 on one side and the other side of the outer circumferential surface, respectively.
  • the first external bevel gear 212 and the second external bevel gear 214 may be coaxially mounted on a housing (not shown) so as to be rotatable, and may be formed as a single member.
  • first circumscribed bevel gear 212 and the second circumscribed bevel gear 214 need not necessarily be formed as one member, but may be coupled to a cylindrical coaxial shaft so as to be rotated with the cylindrical coaxial shaft. It can be done.
  • the second sun gear 220 is rotatably disposed coaxially between the first circumscribed bevel gear 212 and the second circumscribed bevel gear 214 and has a third circumferential bevel gear 222 and a fourth circumferential bevel gear 224.
  • the first intermediate bevel gear 230 is disposed to be engaged with the first external bevel gear 212 and the third external bevel gear 222 and is rotatably mounted on a housing (not shown) And may be rotated about axis 232.
  • the number of the first intermediate bevel gears 230 is not limited, but is preferably a plurality of.
  • the second intermediate bevel gear 240 may be arranged to be engaged with the second circumscribed bevel gear 214 and the fourth circumscribed bevel gear 224 and rotate and revolve (the rotational axis and the revolution axis are perpendicular to each other )can do.
  • the second sun gear 220 having the gear 222 and the fourth circumferential bevel gear 224, the first intermediate bevel gear 230 and the second intermediate bevel gear 240 are connected to the input side gear portion, The gear portion, and the output side gear portion, which will be described in detail below.
  • the first circumferential bevel gear 212 may correspond to the input side gear portion.
  • the first circumferential bevel gear 212 may be connected to a rotating shaft of the motor and rotated in conjunction with rotation of the rotating shaft.
  • the second intermediate bevel gear 240 may correspond to the output side gear portion, and the number is not limited. However, it is preferable that the second intermediate bevel gear 240 is formed of a plurality of at least two for connecting with the carrier 250 as the output portion 250 .
  • the second outer bevel gear 214, the second sun gear 220, and the first intermediate bevel gear 230 may correspond to the transmission side gear portion.
  • the first circumscribed bevel gear 212 connected to the rotating shaft is also rotated in the clockwise direction.
  • the second circumscribed bevel gear 214 disposed coaxially is also rotated clockwise, and at the same time,
  • the first intermediate bevel gear 230 is rotated in a counterclockwise direction around a shaft 232 to which the position is fixed.
  • the third outer bevel gear 222 and the fourth outer bevel gear 224 are rotated in the clockwise direction with respect to the coaxial axis and the second intermediate bevel gear 240 revolves clockwise with respect to the coaxial axis And is rotated counterclockwise with respect to its own axis.
  • the rotation speed of the carrier 250 may be different from the rotation speed of the rotation shaft due to the power of the motor. If the rotation speed of the carrier 250 is less than the rotation speed of the rotation shaft due to the power of the motor, The power transmitting apparatus 200 according to the second embodiment of the invention realizes the function of the speed reducer.
  • the reduction ratio is determined by the first circumferential bevel gear 212, the second circumscribed bevel gear 214, the third circumscribed bevel gear 222, the fourth circumscribed bevel gear 224, the first intermediate bevel gear 230 And the characteristics of the second intermediate bevel gear 240.
  • Those skilled in the art can set the characteristics of the gears based on a desired reduction gear ratio.
  • the rotational speed of the carrier 250 may be the same as the rotational speed of the rotational shaft due to the power of the motor in the power transmitting apparatus 200 according to the second embodiment of the present invention.
  • the power transmission apparatus 200 is configured such that even when a forced external force acts on the carrier 250 after the power of the motor is cut off, The carrier 250 is not rotated.
  • A is an average vertical distance between the tooth joint points of the first circumscribed bevel gear and the first intermediate bevel gear at the central axis of the coaxial axis
  • B is the mean vertical distance between the first intermediate bevel gear and the third circumscribed bevel gear at the central axis
  • C is an average vertical distance between the tooth joint points of the second circumferential bevel gear and the second intermediate bevel gear at the center axis
  • D is an average vertical distance between the teeth of the fourth circumferential bevel gear And the average vertical distance between the tooth point of the second intermediate bevel gear.
  • the carrier 250 may not rotate despite the external force acting on the carrier 250, and if the wire of the elevator is wound on the carrier 250, the elevator may be operated without a separate brake device It is possible to prevent the elevator from being lowered due to its own weight when the power is interrupted.
  • the rotating shaft rotated by the power of the motor may be a shaft 232 fixed at a position rotatably mounted on a housing (not shown) to which the first middle bevel gear 230 is coupled.
  • the first intermediate bevel gear 230 may correspond to an input side gear portion.
  • the first sun gear 210 and the second sun gear 220 may correspond to the transmitting side gear portion
  • the second middle bevel gear 240 may correspond to the output side gear portion
  • the rotation shaft rotated by the power of the motor may be connected to the second sun gear 220.
  • the second sun gear 220 may be an input side gear part.
  • first sun gear 210 and the first middle bevel gear 230 may be an output side gear unit
  • second intermediate bevel gear 240 may correspond to an output side gear unit
  • the carrier 250 can not rotate despite the external force acting on the carrier 250.
  • which gear corresponds to which gear of the input side gear portion can be determined in consideration of the reduction ratio to be implemented by using the power transmission device.
  • the power transmitting apparatus 200a according to Fig. 3 is different from the power transmitting apparatus 200 according to Fig. 2 in that the third circumscribed bevel gear 222a and the fourth circumscribed bevel gear 224a Except that the first outer bevel gear 212a and the second outer bevel gear 214a are disposed outside the first sun gear 210a, that is, the first circumscribed bevel gear 212a and the second circumscribed bevel gear 214a.
  • the power transmission device 200b according to FIG. 4 has the same configuration and effects as those of the power transmission device 200 according to FIG. 2 except for the values of B / A and D / C .
  • the power transmitting apparatus 200c according to FIG. 5 is different from the power transmitting apparatus 200b according to FIG. 4 in that the first intermediate bevel gear 230c and the second intermediate bevel gear 240c are omitted
  • the configuration and effects are the same.
  • the first intermediate bevel gear 230c includes a first inner middle bevel gear 230c-1 and a first outer middle bevel gear 230c-1, which are located on the inner side and the outer side, respectively, with respect to the fixed axis 232c. 2).
  • the second middle bevel gear 240c may include a second inner intermediate bevel gear 240c-1 and a second outer intermediate bevel gear 240c-2, which are located on the inner side and the outer side, respectively.
  • a included in the predetermined first condition is an average vertical distance between the tooth joint points of the first outer bevel gear 212c and the first inner intermediate bevel gear 230c-1 at the central axis of the coaxial axis.
  • B is an average vertical distance between the coupling points of the first outer intermediate bevel gear 230c-2 and the third outer bevel gear 222c on the central axis
  • C is an average vertical distance between the second outer intermediate bevel gear 230c- Is an average vertical distance between the tooth point of the circumscribed bevel gear 224c and the second inner intermediate bevel gear 240c-1.
  • D is an average vertical distance between the tooth joint points of the fourth outer circumference bevel gear 224c and the second outer intermediate bevel gear 240c-2 on the central axis.
  • the power transmitting apparatus 200d according to Fig. 6 is different from the power transmitting apparatus 200 according to Fig. 4 in that the third circumscribed bevel gear 222d and the fourth circumscribed bevel gear 224d And is disposed outside the first sun gear 210d, that is, outside the first circumscribed bevel gear 212d and the second circumscribed bevel gear 214d.
  • the power transmitting apparatus 200e according to Fig. 7 is different from the power transmitting apparatus 200d according to Fig. 6 in that the first middle bevel gear 230d and the second middle bevel gear 240d are omitted
  • the configuration and effects are the same.
  • the first intermediate bevel gear 230d includes a first inner middle bevel gear 230d-1 and a first outer middle bevel gear 230d-1, which are positioned on the inner side and the outer side, respectively, with respect to the fixed axis 232d. 2).
  • the second middle bevel gear 240d may include a second inner middle bevel gear 240d-1 and a second outer intermediate bevel gear 240d-2, which are located on the inner side and the outer side, respectively.
  • a included in the predetermined first condition is an average vertical distance between the tooth joint points of the first outer bevel gear 212d and the first inner intermediate bevel gear 230d-1 at the central axis of the coaxial axis.
  • B is an average vertical distance between the coupling points of the first outer intermediate bevel gear 230d-2 and the third outer bevel gear 222d on the central axis
  • C is an average vertical distance between the second outer intermediate bevel gear 230d- Is an average vertical distance between the tooth joint points of the circumscribed bevel gear 224d and the second inner intermediate bevel gear 240d-1.
  • D is an average vertical distance between the tooth joint points of the fourth outer bevel gear 224d and the second outer intermediate bevel gear 240d-2 on the central axis.
  • FIGS. 8 and 9 are schematic cross-sectional views showing a power transmitting apparatus according to a third embodiment of the present invention in which the rotational axis of a motor is connected to a first circumscribed bevel gear.
  • the power transmission apparatus 300 can be implemented by a combination of a bevel gear, a spur gear or a helical gear, and includes a sun gear 310, a ring gear 320, a first intermediate bevel gear 330, and a second intermediate gear 340.
  • the sun gear 310 may include a first external bevel gear 312 and a second external gear 314 on one side and the other side of the outer peripheral surface.
  • the first external bevel gear 312 and the second external gear 314 may be coaxially mounted on the housing (not shown) so as to be rotatable, and may be formed as a single member.
  • first external bevel gear 312 and the second external gear 314 do not necessarily have to be formed as a single member, but may be formed so as to be coupled to a cylindrical shaft and rotate in association with the cylindrical shaft It is acceptable.
  • the second external gear 314 may be a spur gear or a helical gear.
  • the ring gear 320 may be rotatably disposed on the coaxial shaft and may include a third external bevel gear 322 and a fourth internal gear 324 on one side and the other side, 324 may be a spur gear or a helical gear, but it is preferable that they are gears of the same kind as the second external gear 314.
  • the first intermediate bevel gear 330 is disposed to be engaged with the first circumscribed bevel gear 312 and the third circumscribed bevel gear 322 and is rotatably mounted in a housing (not shown) And may be rotated about an axis 332.
  • the number of the first intermediate bevel gears 330 is not limited, but may be a plurality of.
  • the second intermediate gear 340 may be disposed so as to be engaged with the second external gear 314 and the fourth internal gear 324 and may be a kind of one type of rotating and revolving May be a planetary gear.
  • the first intermediate bevel gear 330 and the second intermediate gear 340 are connected to the input side gear portion, the transmission side gear portion and the output side gear portion And is specifically described below.
  • the first circumferential bevel gear 312 may correspond to the input side gear portion.
  • the first circumferential bevel gear 312 may be connected to a rotating shaft of the motor and rotated in conjunction with rotation of the rotating shaft.
  • the second intermediate gear 340 may correspond to the output side gear portion.
  • the number of the second intermediate gears 340 is not limited. However, it is preferable that the second intermediate gear 340 is formed of a plurality of at least two to connect the output portion 350 with the carrier 350.
  • the second external gear, the first intermediate bevel gear, and the ring gear 320 may correspond to the transmission side gear portion.
  • the rotating shaft is rotated clockwise (X3) by the power of the motor
  • the first circumscribed bevel gear 312 connected to the rotating shaft is also rotated in the clockwise direction.
  • the second circumscribed gear 314 disposed coaxially is also rotated clockwise.
  • the first circumscribed bevel gear 312, 1 middle bevel gear 330 is rotated in a counterclockwise direction around a fixed axis 332.
  • the third external bevel gear 322 and the fourth internal gear 324 are rotated in the clockwise direction with respect to the coaxial axis, and the second intermediate gear 340 rotates in the clockwise direction while revolving in the clockwise direction.
  • the revolution in the clockwise direction with respect to the coaxial axis of the second intermediate gear 340 causes clockwise rotation of the output unit 350, that is, the carrier 350.
  • the rotation speed of the carrier 350 may be different from the rotation speed of the rotation shaft due to the power of the motor. If the rotation speed of the carrier 350 is less than the rotation speed of the rotation shaft due to the power of the motor,
  • the power transmitting apparatus 300 according to the third embodiment of the present invention implements the function of the speed reducer.
  • the reduction ratio is determined by the ratio between the first external bevel gear 312, the second external gear 314, the third external bevel gear 322, the fourth internal gear 324, the first intermediate bevel gear 330,
  • the characteristics of the second intermediate gear 340, and the like, and those skilled in the art can set characteristics of the gears based on a desired reduction gear ratio.
  • the rotation speed of the carrier 350 may be the same as the rotation speed of the rotation shaft due to the power of the motor in the power transmission apparatus 300 according to the third embodiment of the present invention.
  • the power transmission device 300 can prevent the external force from being applied to the carrier 350 even after the power of the motor is shut off, The carrier 350 is not rotated.
  • A is an average vertical distance between the tooth joint points of the first circumscribed bevel gear and the first intermediate bevel gear at the central axis of the coaxial axis
  • B is the mean vertical distance between the first intermediate bevel gear and the third circumscribed bevel gear at the central axis
  • C is the vertical distance between the tooth joint points of the second external gear and the second intermediate gear at the central axis
  • D is the vertical distance between the second intermediate gear and the fourth intermediate gear at the center axis
  • the carrier 350 may not rotate, and if the wire of the elevator is wound on the carrier 350, the elevator may be operated without a separate brake device It is possible to prevent the elevator from being lowered due to its own weight when the power is interrupted.
  • the rotating shaft rotated by the power of the motor may be a shaft 332 fixed at a position rotatably mounted on a housing (not shown) coupled with the first middle bevel gear 230.
  • the first intermediate bevel gear 330 may correspond to the input side gear portion.
  • the sun gear 310 and the ring gear 320 may correspond to the transmission gear portion, and the second intermediate gear 340 may correspond to the output gear portion.
  • the rotation shaft rotated by the power of the motor may be connected to the ring gear 320.
  • the ring gear 320 may be an input side gear part.
  • the sun gear 310 and the first intermediate bevel gear 330 may correspond to the transmitting side gear portion, and the second intermediate gear 340 may be the output side gear portion.
  • which gear corresponds to which gear of the input side gear portion can be determined in consideration of the reduction ratio to be implemented by using the power transmission device.
  • the power transmission device 300a according to FIG. 9 has the same configuration and effect as the power transmission device 300 according to FIG. 8 except for the first intermediate bevel gear 330a.
  • the first intermediate bevel gear 330a includes a first inner intermediate bevel gear 330a-1 and a first outer intermediate bevel gear 330a-1 and a second intermediate intermediate bevel gear 330a-1, 2).
  • a included in the predetermined first condition is an average vertical distance between the coupling points of the first outer bevel gear 312a and the first inner intermediate bevel gear 330a-1 at the central axis of the coaxial axis
  • B may be an average vertical distance between the tooth joint points of the first outer intermediate bevel gear 330a-2 and the third outer bevel gear 322a on the central axis.
  • FIGS. 10 and 11 are schematic sectional views showing a power transmitting apparatus according to a fourth embodiment of the present invention in which the rotation axis of the motor is connected to the first external gear.
  • a power transmission apparatus 400 may be implemented by a combination of a spur gear or a helical gear and a bevel gear, and includes a sun gear 410, a ring gear 420 A first intermediate gear 430, and a second intermediate bevel gear 440.
  • a spur gear or a helical gear and a bevel gear includes a sun gear 410, a ring gear 420 A first intermediate gear 430, and a second intermediate bevel gear 440.
  • the sun gear 410 may include a first external gear 412 and a second external bevel gear 414 on one side and the other side of the outer circumferential surface, respectively.
  • the first external gear 412 and the second external bevel gear 414 may be coaxially mounted on the housing (not shown) so as to be rotatable, or may be formed as a single member.
  • first external gear 412 and the second external bevel gear 414 do not necessarily have to be formed as one member, but may be formed to be coupled to a cylindrical coaxial shaft and rotate in conjunction with the cylindrical coaxial shaft, Do.
  • the first external gear 412 may be a spur gear or a helical gear.
  • the ring gear 420 may be rotatably disposed on the coaxial shaft and may include a third internal gear 422 and a fourth external bevel gear 424 on one side and the other side, 422 may be a spur gear or a helical gear, but it is preferable that they are gears of the same kind as the first external gear 412.
  • the first intermediate gear 430 may be disposed so as to be engaged with the first external gear 412 and the third internal gear 422 and may include a shaft fixed to the housing rotatably mounted on the housing As shown in FIG.
  • the number of the first intermediate gears 430 is not limited, but a plurality of the first intermediate gears 430 is preferably used.
  • the second intermediate bevel gear 440 is disposed to be engaged with the second external bevel gear 414 and the fourth external bevel gear 424 and is capable of rotating and revolving (the rotational axis and the pivotal axis are perpendicular to each other) .
  • the ring gear 420 having the fourth outer circumference bevel gear 424 and the first intermediate gear 430 and the second intermediate bevel gear 440 are provided on the input side gear portion, And is specifically described below.
  • the first external gear 412 may correspond to the input side gear portion.
  • the first external gear 412 may be connected to the rotation shaft of the motor and rotated in conjunction with rotation of the rotation shaft.
  • the second intermediate bevel gear 440 may correspond to the output side gear portion, and the number is not limited. However, the second intermediate bevel gear 440 is preferably formed by a plurality of at least two for connecting with the carrier 450, which is the output portion 450 .
  • the second external bevel gear 414, the second external bevel gear, the ring gear 420, and the first intermediate gear 430 may correspond to the transmission side gear portion.
  • the rotating shaft is rotated clockwise (X4) by the power of the motor
  • the first external gear 412 connected to the rotating shaft is also rotated in the clockwise direction.
  • the second external bevel gear 414 disposed coaxially is also rotated in the clockwise direction.
  • the first external gear 412 which is engaged with the first external gear 412,
  • the intermediate gear 430 is rotated about an axis 432 whose position is fixed counterclockwise.
  • the third internal gear 422 and the fourth external bevel gear 424 are rotated in the clockwise direction with respect to the coaxial axis.
  • the second intermediate bevel gear 440 revolves in the clockwise direction with respect to the coaxial axis, And is rotated counterclockwise about the axis.
  • the rotation speed of the carrier 450 may be different from the rotation speed of the rotation shaft due to the power of the motor. If the rotation speed of the carrier 450 is less than the rotation speed of the rotation shaft due to the power of the motor,
  • the power transmitting apparatus 400 according to the fourth embodiment of the present invention implements the function of the speed reducer.
  • the reduction gear ratio is determined by the first external gear 412, the second external bevel gear 414, the third internal gear 422, the fourth external bevel gear 424, the first intermediate gear 430, The characteristics of the second intermediate bevel gear 440, and the like, and those skilled in the art can set characteristics of the gears based on a desired reduction ratio.
  • the rotational speed of the carrier 450 may be equal to the rotational speed of the rotational shaft due to the power of the motor.
  • the power transmission device 400 has a predetermined first condition, which is the following conditional expression, even when a forced external force acts on the carrier 450 after the power of the motor is shut off The carrier 450 is not rotated.
  • A is the vertical distance between the first external gear and the first intermediate gear at the center axis of the coaxial shaft
  • B is the vertical distance between the first intermediate gear and the third internal gear
  • C is an average vertical distance between the tooth joint points of the second circumferential bevel gear and the second intermediate bevel gear on the central axis
  • D is a mean vertical distance between the second intermediate bevel gear and the fourth circumscribed bevel gear
  • the carrier 450 may not rotate, and if the wire of the elevator is wound on the carrier 450, the elevator may be operated without a separate brake device It is possible to prevent the elevator from being lowered due to its own weight when the power is interrupted.
  • the rotation shaft rotated by the power of the motor may be a shaft 332 having a fixed position where the rotation shaft is rotatably mounted on a housing (not shown) coupled with the first intermediate gear 430.
  • the first intermediate gear 430 may correspond to an input side gear portion.
  • the sun gear 410 and the ring gear 420 may correspond to the transmission gear portion, and the second intermediate bevel gear 440 may correspond to the output gear portion.
  • the rotation shaft rotated by the power of the motor may be connected to the ring gear 420.
  • the ring gear 420 may be an input side gear part.
  • the sun gear 410 and the first intermediate gear 430 may correspond to the transmission side gear portion
  • the second intermediate bevel gear 440 may correspond to the output side gear portion
  • which gear corresponds to which gear of the input side gear portion can be determined in consideration of the reduction ratio to be implemented by using the power transmission device.
  • the power transmission apparatus 400a according to Fig. 11 has the same configuration and effect as the power transmission apparatus 400 according to Fig. 10 except for the second intermediate bevel gear 440a.
  • the second intermediate bevel gear 440a may include a second inner middle bevel gear 440a-1 and a second outer intermediate bevel gear 440a-2, which are located on the inner side and the outer side, respectively.
  • C which is included in the predetermined first condition, is an average vertical distance between the coupling points of the second outer bevel gear 414a and the second inner intermediate bevel gear 440a-1 at the central axis of the coaxial axis
  • D may be an average vertical distance between the tooth joint points of the fourth outer bevel gear 424a and the second outer intermediate bevel gear 440a-2 on the central axis.
  • the power transmission apparatus according to the present invention described with reference to Figs. 1 to 11 may be utilized in various devices, for example, in a chain block.
  • a chain block according to the present invention is a kind of elevating device for lifting a heavy load connected to another chain by an external force pulling a chain.
  • the chain block includes an input unit to which an external force is applied, And a power transmission unit for outputting power at a reduction ratio.
  • the power transmission unit includes an input side gear portion rotated by an external force applied to the input unit, a transmission side gear portion disposed to mesh with the input side gear portion and rotated by rotation of the input side gear portion, And an output part connected to the output side gear part and rotated by rotation of the output side gear part.
  • the input side gear portion, the transmission side gear portion, and the output side gear portion may be implemented by various kinds of gears or a combination thereof.
  • a spur gear an internal gear, a helical gear, a bevel gear, Various gears can be applied.
  • the output side gear portion may include a gear capable of rotating and revolving.
  • the output portion may be connected to the output side gear portion by a kind of carrier and may be rotated by revolving the gear included in the output side gear portion.
  • the power transmission unit may include a power transmission unit that is connected to the input side gear unit and the transmission side gear unit such that an unintended external force or rotation of the output unit due to the weight of the heavy object is interrupted, At least two selected from among a distance between the input side gear portion and the output side gear portion, a distance between the input side gear portion and the output side gear portion, and a distance between the transmission side gear portion and the output side gear portion satisfy a first predetermined condition.
  • the predetermined first condition may be varied depending on the type of the gears constituting the input side gear portion, the transmission side gear portion, and the output side gear portion.
  • the power transmission unit according to the present invention is characterized in that when the gears constituting the input side gear portion, the transmission side gear portion and the output side gear portion are fixed and the predetermined first condition defined thereby is satisfied, The rotation of the output unit can be automatically prevented even if a forced external force acts on the output unit after the external force is cut off.
  • the chain block according to the present invention can adjust the magnitude of the external force applied to the input unit in order to raise and lower the weight, so that the operator can adjust the magnitude of the external force based on the weight of the heavy chain with one chain block, The efficiency of the work can be maximized.
  • FIGS. 12 to 22 are schematic sectional views showing that the power transmission device according to each of Figs. 1 to 11 is applied to a chain block.
  • the chain block 500 according to Fig. 12 is a power transmission device 100 according to Fig. 1 to which a chain block is applied, and may include a power transmission unit U1 and an input unit U2.
  • the power transmission unit U1 includes an input side gear portion 510 rotated by an external force as described above, a power transmission unit U1 arranged to be engaged with the input side gear portion 510, An output side gear portion 540 which is arranged to mesh with the transmission side gear portions 520 and 530 and is rotated by rotation of the transmission side gear portions 520 and 530, And an output unit 550 connected to the output side gear unit 540 and rotated by the rotation of the output side gear unit 540.
  • the power transmission unit U1 may include a sun gear 510, a ring gear 520, a first intermediate gear 530 and a second intermediate gear 540, and the sun gear 510 may include one side And the first external gear 512 and the second external gear 514 may be formed on the other side.
  • the first external gear 512 and the second external gear 514 provide an external appearance and accommodate the input side gear portion 510, the transmission side gear portions 520 and 530 and the output side gear portion 540 Which is rotatably mounted on a casing CA, which is made up of a plurality of components, and may be formed as one member as shown in Fig.
  • first external gear 512 and the second external gear 514 do not necessarily have to be formed as a single member, and may be formed to be coupled to a cylindrical coaxial shaft and rotate in conjunction with the cylindrical coaxial shaft, Do.
  • the first external gear 512 and the second external gear 514 are implemented as a spur gear or a helical gear and the first external gear 512 is implemented as a spur gear and the second external gear 514, May be implemented by a helical gear. Of course, the opposite case is possible.
  • the ring gear 520 may be disposed on the outer side of the sun gear 510 and may include a first internal gear 522 and a second internal gear 524 on one side and the other side of the inner peripheral surface.
  • the first internal gear 522 and the second internal gear 524 may be implemented as spur gears or helical gears, but may be formed of the same material as the first external gear 512 and the second external gear 514, It is preferable to be implemented as a gear.
  • the first intermediate gear 530 may be disposed to be engaged with the first external gear 512 and the first internal gear 522 and may be disposed on a casing rotatably mounted on the casing CA, 532 < / RTI >
  • the first intermediate gear 530 may be implemented by gears of the same kind as that of the first external gear 512 and the first internal gear 522.
  • the number of the first intermediate gear 530 is not limited, 510 at the same angle with respect to the coaxial axis.
  • the second intermediate gear 540 may be disposed so as to be engaged with the second external gear 514 and the second internal gear 524 and may be a kind of one that can rotate and revolve (the rotating shaft and the idler shaft are parallel to each other) May be a planetary gear.
  • the number of the second intermediate gears 540 is not limited. However, it is preferable that the number of the second intermediate gears 540 is two or more for connecting to the output unit 550. In case of a plurality of the second intermediate gears 540, They can be arranged at the same angle.
  • the sun gear 510 may correspond to the input side gear part 510
  • the second intermediate gear 540 may correspond to the output side gear part 540.
  • the gears other than the sun gear 510 and the second intermediate gear 540 may correspond to the transmission gears 520 and 530.
  • the output unit 550 may include a first chain CH1 connected to the weight M and a first chain CH1 connected to the output unit 550.
  • first chain CH1 rotates by revolving the second intermediate gear 540, So that the heavy object M can be moved up and down.
  • the portion of the output unit 550 in which the first chain CH1 is wound is formed in a shape corresponding to the first chain CH1 so that the first chain CH1 can be stably inserted and fixed in position So that the first chain CH1 can be moved without slipping when the output unit 550 is rotated so that the heavy object M can be elevated and lowered.
  • the input unit U2 is a component that is connected to the sun gear 510 corresponding to the input side gear unit 510 and is capable of rotating the input side gear unit 510 by an external force, And may be integrally formed with the sun gear 510.
  • the sun gear 510 may be formed integrally with the sun gear 510.
  • the input unit U2 may be detachably connected to the sun gear 510.
  • the second chain CH2 may be wound on the input unit U2.
  • the external force may be a force pulling one end of the second chain CH2.
  • the second chain CH2 is moved, (U2) is rotated.
  • the portion of the input unit U2 on which the second chain CH2 is wound is formed in a shape corresponding to the second chain CH2 so that the second chain CH2 is stably inserted and fixed in position So that the input unit U2 can be rotated without slipping when the second chain CH2 is moved by the external force.
  • an operator grips any one of the second chains CH2 wound around the input unit U2 to lift the weight M, and then applies an external force to pull it.
  • the second chain (CH2) When an external force is applied to the second chain (CH2), the second chain (CH2) is moved, which causes the input unit (U2) to rotate.
  • the input unit U2 is rotated in the clockwise direction X1 by gripping any one of the second chain CH2, and then the input unit U2 is rotated in the clockwise direction X1
  • the sun gear 510 corresponding to the input side gear portion 510 is also rotated in the clockwise direction X1.
  • both the first external gear 512 and the second external gear 514 are rotated in the clockwise direction X1.
  • the first intermediate gear 530 engaged with the external gear 512 is rotated about the axis 532 fixed in the counterclockwise direction X2.
  • the first internal gear 522 and the second internal gear 524 are rotated in the clockwise direction X1 while the second intermediate gear 540 is rotated in the clockwise direction X1 and clockwise X1).
  • the second intermediate gear 540 simultaneously rotates and revolves in the clockwise direction X1 by the rotation of the second external gear 514 and the second internal gear 524,
  • the output unit 550 connected to the second intermediate gear 540 is also rotated in the clockwise direction X1.
  • the lifting and lowering of the heavy object M may vary depending on the position of the connecting portion between the heavy object M and the first chain CH1.
  • the rotational speed of the output unit 550 for determining the lifting speed of the heavy object M may be different from the rotational speed of the input unit U2 according to the movement of the first chain CH1, 150 is smaller than the rotation speed of the input unit (U2), the power transmitting unit (U1) implements the function of the speed reducer.
  • the reduction ratio is determined by the first external gear 512, the second external gear 514, the first internal gear 522, the second internal gear 524, the first intermediate gear 530,
  • the diameter of the intermediate gear 540 and a person skilled in the art can set the diameters of the gears and the like on the basis of a desired reduction gear ratio.
  • the rotational speed of the output unit 550 may be the same as the rotational speed of the input unit U2.
  • the sun gear 510 can rotate once, and the magnitude of the external force for rotating the sun gear 510 by one rotation, according to the size of the input unit U2, Can be adjusted.
  • the weight M can be moved up and down with a small external force.
  • the input unit U2 can adjust the magnitude of the external force for lifting and lowering the heavy object M in order to extend the above-described principle in terms of the user's convenience.
  • the input unit U2 includes a first input unit 560 which is rotated once by an external force when the second chain CH2 moves by a first distance, and a second input unit 560 which rotates the second chain CH2 by the external force. And a second input unit 570 rotated by one rotation in the case of moving by a second distance which is different from the first distance, and may further include three or more input units.
  • the portion of the first input unit 560 which can be wound around the second chain CH2 is formed in a shape corresponding to the second chain CH2 so that the second chain CH2 can be stably inserted and fixed
  • the portion of the second input unit 570 that can be wound by the second chain CH2 may be the same.
  • the first input unit 560 and the second input unit 570 may have different diameters of the portions of the second chain CH2 that can be wound, .
  • the magnitude of the external force for turning the sun gear 510 one rotation is smaller than that of the first input unit 560.
  • the second chain CH2 wound on the second input portion 570 may be smaller than the second chain CH2 wound on the second input portion 570.
  • the operator may change the position of the second chain CH2 from the first input portion 560 to the second input portion 570 or vice versa It is possible to maximize the convenience of the work.
  • the diameter of at least one of the portion of the first input portion 560 that the second chain CH2 can wind and the portion of the second input portion 570 that the second chain CH2 can wind is set May be different from the diameter of the portion where the first chain (CH1) is wound at the output unit (150), and may be larger, for example.
  • the power transmission unit U1 is configured such that the external force applied to the second chain CH2 is cut off and the unintentional external force pulling the first chain CH1 or the first chain CH1,
  • the rotation of the output unit 150 due to the weight of the weight M connected to the weight M can be prevented so that a safety accident caused by the unintentional movement of the weight M can be prevented.
  • the power transmission unit U1 is disposed between the input side gear part 510 and the output side gear part 540 and the distance between the input side gear part 510 and the transmission side gear part 520, And the distance between the coupling points of the transmission gears 520, 530 and the output gear 540 may satisfy a first predetermined condition.
  • the predetermined first condition may be the following ⁇ conditional expression>.
  • A is a vertical distance between the coupling points of the first external gear and the first intermediate gear at the center axis of the coaxial shaft
  • B is a vertical distance between the first intermediate gear and the first internal gear
  • C is a vertical distance between the tooth joint points of the second external gear and the second intermediate gear at the central axis
  • D is a vertical distance between the tooth joint points of the second intermediate gear and the second internal gear at the center axis
  • the second intermediate gear 540 connected to the output unit 550 is rotated by the output shaft of the sun gear 510 to rotate the output unit 150.
  • the first external gear 512 of the sun gear 510 and the second external gear 512 of the ring gear 520 transmit the same rotational force to the second external gear 514 and the second internal gear 524 of the ring gear 520, The same driving force is transmitted to the first internal gear 522 of the first internal gear 522.
  • the chain block 500 may further include a hook portion 580 connected to the casing CA to allow the casing CA to be hooked to the support frame, May be connected to the area of the casing (CA) corresponding to the upper portion of the winding portion of the first chain (CH1) of the output section (550).
  • the chain block 500 according to the first embodiment of the present invention can be stably supported on the support block regardless of the weight of the chain block 500 itself and the weight of the heavy object M or the like.
  • the chain block 500 can be stably supported even when the chain block 500 is used by hanging on a ring such as a ceiling of a workplace.
  • the chain block 600 according to Fig. 13 is a chain block in which the power transmission device 200 according to Fig. 2 is applied to a chain block, except that the gears constituting the power transmission unit U1 are replaced with a chain block 500 are the same in construction and in effect, so other description than the gear constituting the power transmitting unit U1 will be omitted.
  • the power transmission unit U1 may be implemented as a combination of bevel gears and may include a first sun gear 610, a second sun gear 620, a first middle bevel gear 630, And a gear 640.
  • the first sun gear 610 may include a first circumscribed bevel gear 612 and a second circumscribed bevel gear 614 on one side and the other side of the outer circumferential surface.
  • the first outer bevel gear 612 and the second outer bevel gear 614 may be coaxially mounted on the casing CA and may be formed as a single member.
  • first circumscribed bevel gear 612 and the second circumscribed bevel gear 614 do not necessarily have to be formed as a single member but are coupled to a cylindrical coaxial shaft and are rotated in cooperation with the cylindrical coaxial shaft It can be done.
  • the second sun gear 620 is rotatably disposed coaxially between the first circumscribed bevel gear 612 and the second circumscribed bevel gear 614 and has a third circumferential bevel gear 622 and a fourth circumscribed bevel gear 624.
  • the first intermediate bevel gear 630 is disposed so as to engage with the first external bevel gear 612 and the third external bevel gear 622 and is rotatably mounted on a shaft rotatably mounted on the casing CA. (632).
  • the number of the first intermediate bevel gears 630 is not limited, but a plurality of the first intermediate bevel gears 630 are preferably implemented.
  • first intermediate bevel gears 630 when a plurality of the first intermediate bevel gears 630 are implemented, they may be arranged at the same angle with respect to the coaxial axis of the first sun gear 610.
  • the second intermediate bevel gear 640 may be arranged to be engaged with the second circumscribed bevel gear 614 and the fourth circumscribed bevel gear 624 so that the second intermediate bevel gear 640 can rotate and revolve )can do.
  • first sun gear 610, the third circumference bevel gear 622, and the fourth circumference bevel gear 624 which are formed with the first circumscribed bevel gear 612 and the second circumscribed bevel gear 614
  • the first intermediate bevel gear 630 and the second intermediate bevel gear 640 may constitute the input side gear portion, the transmission side gear portion, and the output side gear portion, which will be described in detail below .
  • the first sun gear 610 may correspond to the input side gear portion.
  • the second intermediate bevel gear 640 may correspond to the output side gear portion, and the number is not limited. However, it is preferable that the second intermediate bevel gear 640 is formed by a plurality of two or more for connecting with the output portion 650, The first sun gear 610 may be disposed at the same angle with respect to the coaxial axis of the first sun gear 610.
  • the first intermediate bevel gear 630 and the second sun gear 620 may correspond to the transmission side gear portion.
  • A is an average vertical distance between the tooth joint points of the first circumscribed bevel gear and the first intermediate bevel gear at the central axis of the coaxial axis
  • B is the mean vertical distance between the first intermediate bevel gear and the third circumscribed bevel gear at the central axis
  • C is an average vertical distance between the tooth joint points of the second circumferential bevel gear and the second intermediate bevel gear at the center axis
  • D is an average vertical distance between the teeth of the fourth circumferential bevel gear And the average vertical distance between the tooth point of the second intermediate bevel gear.
  • the power transmission unit 200a according to FIG. 3 is applied to a chain block, and the power transmission unit U1 included in the chain block 700 is a power transmission unit
  • the third circumscribed bevel gear 722 and the fourth circumscribed bevel gear 724 are disposed outside the first sun gear 710, that is, the first circumscribed bevel gear 712 and the second circumscribed bevel gear 712, Except for the fact that it is disposed on the outer side of the side wall 714.
  • the power transmission unit 200b according to Fig. 4 is applied to a chain block, and the power transmission unit U1 included in the chain block 800 is a power transmission unit according to Fig. (U1), the configuration and effects are the same except for the values of B / A and D / C.
  • the power transmission unit 200c according to FIG. 5 is applied to a chain block, and the power transmission unit U1 included in the chain block 900 is a power transmission unit
  • the configuration and the effect are the same except for the first intermediate bevel gear 930 and the second intermediate bevel gear 940, as compared with the first intermediate bevel gear U1.
  • the first intermediate bevel gear 930 includes a first inner middle bevel gear 930-1 and a first outer intermediate bevel gear 930-2 located on the inner side and the outer side with respect to a fixed shaft 932, ).
  • the second intermediate bevel gear 940 may include a second inner middle bevel gear 940-1 and a second outer intermediate bevel gear 940-2 located on the inner side and the outer side, respectively.
  • a included in the predetermined first condition is an average vertical distance between the tooth joint points of the first circumferential bevel gear 912 and the first inner intermediate bevel gear 930-1 at the central axis of the coaxial axis.
  • B is an average vertical distance between the coupling points of the first outer intermediate bevel gear 930-2 and the third outer bevel gear 922 on the central axis, Is an average vertical distance between the tooth point of the circumscribed bevel gear 924 and the second inner intermediate bevel gear 940-1.
  • D is an average vertical distance between the tooth joint points of the fourth outer circumference bevel gear 924 and the second outer intermediate bevel gear 940-2 on the central axis.
  • the power transmission unit 200d according to Fig. 6 is applied to a chain block, and the power transmission unit U1 included in the chain block 1000 is a power transmission unit
  • the third circumferential bevel gear 1022 and the fourth circumferential bevel gear 1024 are located outside the first sun gear 1010, that is, the first circumferential bevel gear 1012 and the second circumferential bevel gear 1024, Except for the fact that it is disposed outside of the housing 1014.
  • the power transmission unit U1 which is included in the chain block 1100, is the same as the power transmission unit U1 shown in FIG. 17 except that the power transmission device 200c according to FIG. 7 is applied to a chain block,
  • the configuration and the effect are the same except for the first intermediate bevel gear 1130 and the second intermediate bevel gear 1140.
  • the first intermediate bevel gear 1130 includes a first inner middle bevel gear 1130-1 and a first outer intermediate bevel gear 1130-2 located on the inner side and the outer side with respect to a fixed shaft 1132, ).
  • the second intermediate bevel gear 1140 may include a second inner middle bevel gear 1140-1 and a second outer intermediate bevel gear 1140-2 located on the inner side and the outer side, respectively.
  • a included in the first predetermined condition is an average vertical distance between the tooth joint points of the first outer bevel gear 1112 and the first inner intermediate bevel gear 1130-1 at the central axis of the coaxial axis.
  • B is an average vertical distance between the tooth joint points of the first outer intermediate bevel gear 1130-2 and the third outer bevel gear 1122 on the central axis, Is the average vertical distance between the tooth point of the circumscribed bevel gear 1124 and the second inner intermediate bevel gear 1140-1.
  • D is an average vertical distance between the tooth joint points of the fourth outer circumference bevel gear 1124 and the second outer intermediate bevel gear 1140-2 on the central axis.
  • the power transmission unit U1 included in the chain block 1200 includes a bevel gear and a spur gear or a planetary gear unit, And may include a sun gear 1210, a ring gear 1220, a first intermediate bevel gear 1230, and a second intermediate gear 1240.
  • a sun gear 1210 sun gear
  • a ring gear 1220 a ring gear
  • a first intermediate bevel gear 1230 first intermediate bevel gear 1230
  • second intermediate gear 1240 a second intermediate gear
  • the sun gear 1210 may include a first circumscribed bevel gear 1212 and a second circumscribed gear 1214 on one side and the other side of the outer circumferential surface, respectively.
  • the first external bevel gear 1212 and the second external gear 1214 may be coaxially mounted on the casing CA and may be formed as a single member.
  • first external bevel gear 1212 and the second external gear 1214 do not necessarily have to be formed as a single member, but may be integrated with the cylindrical shaft so as to be rotated with the cylindrical shaft It is acceptable.
  • the second external gear 1214 may be a spur gear or a helical gear.
  • the ring gear 1220 may be rotatably disposed on the coaxial shaft and may include a third external bevel gear 1222 and a fourth internal gear 1224 on one side and the other side, 1224 may be a spur gear or a helical gear, but it is preferable that the second external gear 1214 is the same kind of gear as the second external gear 1214.
  • the first intermediate bevel gear 1230 is disposed to engage with the first circumscribed bevel gear 1212 and the third circumscribed bevel gear 1222 and is rotatably mounted on a shaft rotatably mounted on the casing CA, (Not shown).
  • the number of the first intermediate bevel gears 1230 is not limited, but is preferably a plurality.
  • first intermediate bevel gears 1230 when a plurality of the first intermediate bevel gears 1230 are implemented, they may be disposed at the same angle with respect to the coaxial axis of the sun gear 1210.
  • the second intermediate gear 1240 may be arranged to be engaged with the second external gear 1214 and the fourth internal gear 1224 and may be a kind of a type that can rotate and revolve (the rotating shaft and the idler shaft are parallel to each other) May be a planetary gear.
  • the first intermediate bevel gear 1230 and the second intermediate gear 1240 can constitute the input side gear portion, the transmission side gear portion, and the output side gear portion, which will be described in detail below.
  • the sun gear 1210 may correspond to the input side gear portion.
  • the second intermediate gear 1240 may correspond to the output side gear portion and is not limited in number. However, it is preferable that the second intermediate gear 1240 is formed of a plurality of at least two for connecting with the output portion 1250, And may be disposed at the same angle with respect to the coaxial axis of the sun gear 1210.
  • the first intermediate bevel gear 1230 and the ring gear 1220 may correspond to the transmission side gear portion.
  • A is an average vertical distance between the tooth joint points of the first circumscribed bevel gear and the first intermediate bevel gear at the central axis of the coaxial axis
  • B is the mean vertical distance between the first intermediate bevel gear and the third circumscribed bevel gear at the central axis
  • C is the vertical distance between the tooth joint points of the second external gear and the second intermediate gear at the central axis
  • D is the vertical distance between the second intermediate gear and the fourth intermediate gear at the center axis
  • the power transmission unit U1 which is included in the chain block 1300, is the same as the power transmission unit U1 shown in FIG. 19 except that the power transmission device 300a according to FIG. 9 is applied to a chain block, (U1), the configuration and effects are the same except for the first intermediate bevel gear 1330. [
  • the first middle bevel gear 1330 includes a first inner middle bevel gear 1330-1 and a first outer middle bevel gear 1330-2 located on the inner side and the outer side with respect to a fixed shaft 1332, ).
  • a included in the predetermined first condition is an average vertical distance between the coupling points of the first outer bevel gear 1312 and the first inner intermediate bevel gear 1330-1 at the central axis of the coaxial axis
  • B may be an average vertical distance between the tooth joint points of the first outer intermediate bevel gear 1330-2 and the third outer bevel gear 1322 on the central axis.
  • the power transmitting unit U1 included in the chain block 1400 includes a spur gear or a helical gear, a power transmitting unit U1, Bevel gears and may include a sun gear 1410, a ring gear 1420, a first intermediate gear 1430 and a second intermediate bevel gear 1440.
  • the sun gear 1410 may include a first external gear 1412 and a second external bevel gear 1414 on one side and the other side of the outer peripheral surface, respectively.
  • the first external gear 1412 and the second external bevel gear 1414 may be coaxially mounted on the casing CA and may be formed as a single member.
  • first external gear 1412 and the second external bevel gear 1414 do not necessarily have to be formed as one member, but may be formed to be coupled to a cylindrical coaxial shaft and rotate in conjunction with the cylindrical coaxial shaft, Do.
  • the first external gear 1412 may be a spur gear or a helical gear.
  • the ring gear 1420 is rotatably disposed on the coaxial shaft and may include a third internal gear 1422 and a fourth external bevel gear 1424 on one side and the other side, 1422 may be a spur gear or a helical gear, but it is preferable that the first external gear 1412 is a gear of the same kind as the first external gear 1412.
  • the first intermediate gear 1430 may be disposed to be engaged with the first external gear 1412 and the third internal gear 1422 and may be fixed to a shaft rotatably mounted on the casing CA 1432, respectively.
  • the number of the first intermediate gears 1430 is not limited, but may be a plurality of.
  • first intermediate gears 1430 when a plurality of the first intermediate gears 1430 are implemented, they may be arranged at the same angle with respect to the coaxial axis of the sun gear 1410.
  • the second intermediate bevel gear 1440 is disposed to be engaged with the second external bevel gear 1414 and the fourth external bevel gear 1424 so that the second intermediate bevel gear 1440 can rotate and revolve (the rotation axis and the revolving axis are perpendicular to each other) .
  • a ring gear 1420 having a sun gear 1410, a third internal gear 1422 and a fourth external bevel gear 1424 formed with a first external gear 1412 and a second external bevel gear 1414
  • the first intermediate gear 1430 and the second intermediate bevel gear 1440 may constitute the input side gear portion, the transmission side gear portion, and the output side gear portion, which will be described in detail below.
  • the sun gear 1410 may correspond to an input side gear portion.
  • the second intermediate bevel gear 1440 may correspond to the output side gear portion, and the number is not limited. However, it is preferable that the second intermediate bevel gear 1440 is formed by a plurality of two or more for connection with the output portion 1450, And may be disposed at the same angle with respect to the coaxial axis of the sun gear 1410.
  • the first intermediate gear 1430 and the ring gear 1420 may correspond to the transmission gear portion.
  • A is the vertical distance between the first external gear and the first intermediate gear at the center axis of the coaxial shaft
  • B is the vertical distance between the first intermediate gear and the third internal gear
  • C is an average vertical distance between the tooth joint points of the second circumferential bevel gear and the second intermediate bevel gear on the central axis
  • D is a mean vertical distance between the second intermediate bevel gear and the fourth circumscribed bevel gear
  • the power transmission unit U1 which is included in the chain block 1500, is the same as the power transmission unit U1 shown in FIG. 21 except that the power transmission device 400a according to FIG. 11 is applied to a chain block, (U1), the structure and effect are the same except for the second intermediate bevel gear 1540.
  • the second intermediate bevel gear 1540 may include a second inner middle bevel gear 1540-1 and a second outer intermediate bevel gear 1540-2 located on the inner side and the outer side, respectively.
  • C which is included in the predetermined first condition, is an average vertical distance between the coupling points of the second circumferential bevel gear 1514 and the second inner intermediate bevel gear 1540-1 at the central axis of the coaxial axis
  • D may be an average vertical distance between the tooth joint points of the fourth outer circumference bevel gear 1524 and the second outer intermediate bevel gear 1540-2 on the central axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

Le dispositif de transmission de puissance selon la présente invention fait tourner une unité d'engrenage côté entrée à l'aide d'une puissance appliquée depuis l'extérieur ; fait tourner, au moyen de la rotation de l'unité d'engrenage côté entrée, une unité d'engrenage côté transmission placée de manière à entrer en prise avec l'unité d'engrenage côté entrée ; fait tourner, au moyen de la rotation de l'unité d'engrenage côté transmission, une unité d'engrenage côté sortie placée de manière à entrer en prise avec l'unité d'engrenage côté transmission ; et fait ensuite tourner, au moyen de la rotation de l'unité d'engrenage côté sortie, une unité de sortie reliée à l'unité d'engrenage côté sortie ; et peut empêcher la rotation de l'unité de sortie produite par une forte puissance externe, même si la forte puissance externe est appliquée à l'unité de sortie après que la puissance a été coupée.
PCT/KR2018/008889 2017-08-31 2018-08-06 Dispositif de transmission de puissance WO2019045299A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020170111279A KR101943609B1 (ko) 2017-08-31 2017-08-31 동력 전달 장치
KR10-2017-0111279 2017-08-31
KR1020170146068A KR101926167B1 (ko) 2017-11-03 2017-11-03 체인 블록
KR10-2017-0146068 2017-11-03

Publications (1)

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WO2019045299A1 true WO2019045299A1 (fr) 2019-03-07

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PCT/KR2018/008889 WO2019045299A1 (fr) 2017-08-31 2018-08-06 Dispositif de transmission de puissance

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117668A1 (de) 2020-07-03 2022-01-05 Stahl Cranesystems Gmbh Handhebezeug

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07239004A (ja) * 1994-02-28 1995-09-12 Unisia Jecs Corp 動力伝達装置
KR101595845B1 (ko) * 2013-01-28 2016-02-19 윤은석 감속기
JP2016061331A (ja) * 2014-09-16 2016-04-25 株式会社ジェイテクト 遊星歯車装置および遊星歯車装置の設定方法
JP2016124368A (ja) * 2014-12-26 2016-07-11 日本精工株式会社 舵角比可変装置及びボールナット式ステアリングギヤユニット
KR101723303B1 (ko) * 2015-09-24 2017-04-04 조광호 일방향 감속장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07239004A (ja) * 1994-02-28 1995-09-12 Unisia Jecs Corp 動力伝達装置
KR101595845B1 (ko) * 2013-01-28 2016-02-19 윤은석 감속기
JP2016061331A (ja) * 2014-09-16 2016-04-25 株式会社ジェイテクト 遊星歯車装置および遊星歯車装置の設定方法
JP2016124368A (ja) * 2014-12-26 2016-07-11 日本精工株式会社 舵角比可変装置及びボールナット式ステアリングギヤユニット
KR101723303B1 (ko) * 2015-09-24 2017-04-04 조광호 일방향 감속장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117668A1 (de) 2020-07-03 2022-01-05 Stahl Cranesystems Gmbh Handhebezeug
WO2022003078A3 (fr) * 2020-07-03 2022-03-17 Weingaertner Juergen Outil de levage manuel

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