Balancing device and balancing system including same

Abstract

According to one aspect of the present invention, there may be provided a balance device including an elevator winding drum connected to an elevator car; a central gear unit connected to a first drive shaft of the elevator winding drum and including a first central gear; and an outer gear unit including a first outer gear abutting against the first central gear and rotating, wherein when the elevator winding drum receives a force in a first direction by the elevator car, the central gear unit applies a force to the elevator winding drum in a direction opposite to the first direction due to the force applied from the outer gear unit.

Description

[Technical Field]

[0001] The present invention relates to a balancing device and a balancing system including the same. [Background technology]

[0002] Generally, elevators used in residential or commercial buildings have a vertical shaft formed inside the building, and an elevator car and a balance weight move up and down along the shaft to transport passengers and cargo.

[0003] As a result, the required area of ​​the hoistway for the elevator car and balance weight to travel took up space, which resulted in a reduction in the dedicated floor area of ​​the building.The economic loss associated with this increased geometrically as the building became larger, leading to rising construction costs, and this was a problem that placed a huge burden on the building owner.

[0004] To solve these problems, the applicant's prior patents, Korean Patent No. 10-1817143 and Korean Patent No. 10-1917222, propose an invention to shorten the travel distance of the balance weight by increasing the diameter of the elevator rope take-up drum and decreasing the diameter of the balance weight rope take-up drum, or by placing a gear between the elevator rope take-up drum and the balance weight rope take-up drum.

[0005] However, in this case, a problem arises in that the load of the balance weight needs to be increased.

[0006] Specifically, when the load of the elevator car is applied to the outside of the large-diameter elevator rope take-up drum and the load of the balance weight is applied to the outside of the small-diameter balance weight rope take-up drum, the shaft to which the elevator rope take-up drum is connected will be subjected to a larger torque than the shaft to which the balance weight rope take-up drum is connected, which creates a problem in that it is necessary to increase the load of the balance weight to offset this torque difference. Summary of the Invention [Problem to be solved by the invention]

[0007] The embodiments of the present invention have been proposed to solve the above problems, and an object of the present invention is to provide a balancing device that can replace conventional balance weights and reduce space, and a balancing system including the same.

[0008] Another object of the present invention is to provide a balancing device and a balancing system that can be used in place of balance weights in all conventional devices that use balance weights. [Means for solving the problem]

[0009] According to one aspect of the present invention, there may be provided a balancing device including an elevator winding drum connected to an elevator car; a central gear unit connected to a first drive shaft of the elevator winding drum and including a first central gear; and an outer gear unit including a first outer gear that rotates in contact with the first central gear, wherein when the elevator car applies a force to the elevator winding drum in a first direction, the central gear unit applies a force to the elevator winding drum in a direction opposite to the first direction due to the force applied from the outer gear unit.

[0010] In addition, a balancing device may be provided in which the central gear portion includes a first central gear and a second central gear that abut against each other and rotate, the first central gear is connected to a first drive shaft, the outer gear portion includes a first outer gear that meshes with the first central gear and a second outer gear that meshes with the second central gear, the first central gear and the second central gear are fixed in the vertical direction (gravity direction), and the first outer gear and the second outer gear are arranged to be movable in the vertical direction (gravity direction).

[0011] In addition, the balancing device may further include a moving part that is connected to the outer gear part and is movable relative to the central gear part, a balance weight that is disposed on one side of the moving part, and a load adjusting part that can apply force to the moving part.

[0012] The balancing device may further include an auxiliary gear disposed above the outer gear portion and meshing with the central gear portion.

[0013] According to one aspect of the present invention, there can be provided a balancing system further including the balancing device according to claim 1, a power connection part connected to a first drive shaft, and an auxiliary balancing device capable of applying a force to the first drive shaft via the power connection part.

[0014] In addition, the auxiliary balance device may include a plurality of connecting ropes connected to the power connection part, and a balance bar having the connecting ropes fixed on one side and a movable weight on the other side, and a balance system in which the force applied to the power connection part from the balance bar changes depending on the position of the movable weight.

[0015] Also, a balance system may be provided in which the plurality of connecting ropes are connected to the balance bar via rollers arranged above and below the balance bar.

[0016] In addition, a balancing system may be provided in which the auxiliary balance device and the power connection unit are connected via a first connecting rope, a second connecting rope, and a third connecting rope, the first connecting rope applies a force to rotate the first gear of the power connection unit, the second connecting rope applies a force to rotate the third gear of the power connection unit, and the third connecting rope applies a force to rotate the second gear of the power connection unit, and when the third gear rotates clockwise, the second gear and the first gear rotate counterclockwise, and when a force to lift the third connecting rope is generated by the balance bar, the third connecting rope rotates the second gear counterclockwise, and as the second gear rotates counterclockwise, the third gear rotates clockwise to pull the second connecting rope and simultaneously rotate the first drive shaft, thereby canceling out the force applied by the elevator car.

[0017] In addition, the balance system may include a plurality of first central gears arranged in parallel and spaced apart from each other, a plurality of second central gears arranged in parallel and spaced apart from each other, a first outer gear directly connected to one first central gear, a second outer gear directly connected to one second central gear, a first outer gear indirectly connected to another one first central gear, and a second outer gear indirectly connected to another one second central gear.

[0018] In addition, a balance system can be provided in which the force applied to the power connection part changes depending on the distance X1 between the first fixed part arranged on the balance bar and the moving weight, and the distance X2 between the first fixed part and the second fixed part arranged on the balance bar. [Effects of the Invention]

[0019] The balancing device and the balancing system including the same according to the embodiment of the present invention have the advantage of being able to replace the conventional balance weight and reduce space.

[0020] Another advantage is that it can be used in place of a balance weight in all conventional devices that use a balance weight.

[0021] Furthermore, the torque applied to the rotating shaft of power generation and industrial machinery can be offset.

[0022] In addition, the ratio of the travel distance can be adjusted arbitrarily using the balance weight according to the elevator travel distance. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a diagram conceptually illustrating a balance system 1 according to an embodiment of the present invention. [Figure 2] FIG. 2 is a conceptual diagram showing the balancing apparatus 10 of FIG. 1 as viewed from the side. [Figure 3] FIG. 3 is a conceptual diagram showing the auxiliary balancing device 80 of FIG. 1 as viewed from the side. [Figure 4] FIG. 4 is a diagram conceptually showing the third gear 712, the second gear 722, and the first gear 732 of FIG. 1 as viewed from the front. [Figure 5] FIG. 5 shows an embodiment in which the rope distance of the balance weight is shortened. [Figure 6] FIG. 6 is a diagram showing a balance system 1' according to yet another embodiment of the present invention. [Figure 7] FIG. 7 is a diagram showing a balance system 1'' according to yet another embodiment of the present invention. [Figure 8] FIG. 8 is a diagram showing a balancing device according to still another embodiment of the present invention. [Figure 9] Figure 9 is a conceptual diagram showing the side of the first outer gear 210''', which is indirectly connected to the first central gear 110''', and the second outer gear 220''', which is indirectly connected to the second central gear 120''', in the balancing device of Figure 8. [Figure 10] FIG. 10 is a diagram schematically illustrating a balance system 1'' according to yet another embodiment of the present invention. [Figure 11] FIG. 11 is a conceptual diagram showing the balancing apparatus 10'' shown in FIG. 10 as viewed from the side. [Figure 12] FIG. 12 is a diagram showing a modification of FIG. [Figure 13] FIG. 13 is a diagram showing an embodiment in which a plurality of first connecting ropes R1, a third connecting rope R3 and a second connecting rope R2 are connected to the first winding drum, the second winding drum and the third winding drum of FIG. 12, respectively. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of related known structures or functions would obscure the gist of the present invention, the detailed description will be omitted.

[0025] FIG. 1 is a conceptual diagram of a balance system 1 in one embodiment of the present invention, FIG. 2 is a conceptual diagram of the balance device 10 of FIG. 1 as viewed from the front, FIG. 3 is a conceptual diagram of the auxiliary balance device 80 of FIG. 1 as viewed from the side, and FIG. 4 is a conceptual diagram of the third gear 712, second gear 722, and first gear 732 of FIG. 1 as viewed from the front.

[0026] It can be understood that FIGS. 1 to 4 are conceptual illustrations for the sake of convenience of explanation.

[0027] Furthermore, Figure 1 conceptually shows the balance system 1 viewed from above, and Figures 2 and 3 schematically show the balance device 10 and the auxiliary balance device 80 viewed from the side, respectively.

[0028] 1 to 4, in one embodiment of the present invention, a balancing system 1 may include an elevator car 30, an elevator winding drum 20 connected to the elevator car 30, and a balancing device 10 operating in conjunction with the elevator winding drum 20.

[0029] The balance device 10 of this embodiment can replace the conventional balance weight, and the space required for the balance weight to move can be eliminated, thereby realizing space saving.

[0030] For example, if the weight of the elevator car 30 causes the elevator winding drum 20 to experience a force in a first direction, the balancing device 10 can apply a force to the elevator winding drum 20 in a direction opposite to the first direction.

[0031] Specifically, the balancing device 10 may include an elevator winding drum 20 to which an elevator car 30 is connected, a pair of central gear units 100 connected to a first drive shaft L1 of the elevator winding drum 20 and rotating in contact with each other, and a pair of outer gear units 200 each rotating in contact with the pair of central gear units 100.

[0032] At this time, when the elevator car 30 applies a force to the elevator winding drum 20 in a first direction, the central gear unit 100 can apply a force to the elevator winding drum 20 in a direction opposite to the first direction due to the force applied from the outer gear unit 200.

[0033] In the embodiment shown in FIG. 1, the elevator car 30 exerts a force on the elevator winding drum 20 in a clockwise direction (when viewed from left to right in FIG. 1), and the first direction can be understood to be clockwise.

[0034] However, the concept of the present invention is not limited to this, and the first direction may change depending on the relative positions of the elevator car 30 and the elevator take-up drum 20.

[0035] The elevator car 30 may be disposed below and between the two elevator winding drums 20, 20', although the location where the elevator car 30 is disposed is not limited thereto.

[0036] The elevator winding drum 20 and the central gear unit 100 may be connected via a first drive shaft L1. That is, the central gear unit 100 and the elevator winding drum 20 are fixed relative to each other via the first drive shaft L1, and when the central gear unit 100 receives a force from the outer gear unit 200, the same force may also be applied to the elevator winding drum 20.

[0037] The pair of central gear units 100 may include a first central gear 110 coupled to the first drive shaft L1 and a second central gear 120 meshing with the first central gear 110.

[0038] In addition, the pair of outer gear units 200 may include a first outer gear 210 that meshes with the first central gear 110 and a second outer gear 220 that meshes with the second central gear 120 .

[0039] Alternatively, the first central gear 110 and the second central gear 120 may be fixed in the vertical direction, and the first outer gear 210 and the second outer gear 220 may be provided so as to be movable in the vertical direction.

[0040] The pair of outer gear units 200 can operate on this principle with respect to the pair of central gear units 100. For example, when a load is applied to the lower side of the moving unit 400, the first outer gear 210 presses the central gear unit 100 downward, causing the first outer gear 210 to rotate clockwise and the first central gear 110 to rotate counterclockwise.

[0041] In addition, the force applied by the outer gear portion 200 to the central gear portion 100 may change depending on the relative positions of the outer gear portion 200 and the central gear portion 100 .

[0042] The central gear portion 100 and the outer gear portion 200 may be made of materials such as resin, rubber, alloy, etc. However, the concept of the present invention is not limited thereto, and the outer gear portion 200 may be made of various materials.

[0043] Here, the up-down direction is the direction of gravity, and can be understood as the z-axis direction with reference to FIG.

[0044] The outer gear portion 200 can apply a force to the central gear portion 100 in a downward direction (-z direction).

[0045] Specifically, the balancing device 10 may further include a moving part 400 that is connected to the outer gear part 200 and can move relative to the central gear part 100, and a load adjusting part 510 that can apply a load to the moving part 400 (for convenience of explanation, the moving part 400 is not shown in FIG. 1).

[0046] The load adjusting unit 510 may be fixed to the upper side of the support unit 700 , and the moving unit 400 may move vertically relative to the support unit 700 via the rollers 600 .

[0047] Here, the load adjusting unit 510 is a piston cylinder and can use hydraulic pressure, air pressure, or spring tension. A force can be applied to the load adjusting unit 510 through the power unit 520.

[0048] That is, when pressure is applied by the power unit 520, the load adjusting unit 510 can press the balance weight 410 and the moving unit 400 connected thereto downward.

[0049] As a result, the outer gear part 200 connected to the moving part 400 can apply force to the central gear part 100 to offset the force applied to the elevator winding drum 20 from the elevator car 30.

[0050] For example, the heavier the elevator car 30, the more pressure can be applied from the load adjusting unit 510 to the load adjusting unit 510, or the load of the balance weight 410 itself can be increased to offset the force applied to the elevator winding drum 20.

[0051] The balancing apparatus 10 of this embodiment can be used not only as an apparatus for balancing the elevator car 30 but also in various other apparatuses.

[0052] A power control box 524 may be located on one side of the power section 520 .

[0053] The power control box 524 may include a sensor capable of sensing the weight applied to the balance weight 410 and may use air pressure to automatically offset the relative weight applied to the balance weight 410 .

[0054] In addition, a control valve 526 is disposed on one side of the power unit 520, and the control valve 526 can adjust the hydraulic or air pressure applied from the power unit 520 to the load adjustment unit 510, and by adjusting the hydraulic or air pressure applied to the load adjustment unit 510, the load applied to the balance weight 410 can be automatically adjusted.

[0055] The balancing device 10 may also include an auxiliary gear 300 that meshes with the central gear portion 100 .

[0056] The auxiliary gear 300 may be spaced apart from the outer gear portion 200 and may be arranged to mesh with the central gear portion 100 .

[0057] For example, the auxiliary gear 300 may include a first auxiliary gear 310 that meshes with the first central gear 110 and is spaced apart from the first outer gear 210, and a second auxiliary gear 320 that meshes with the second central gear 120 and is spaced apart from the second outer gear 220.

[0058] Here, the diameters of the central gear portion 100, the outer gear portion 200, and the auxiliary gear 300 can be set in this order to increase.

[0059] The first auxiliary gear 310 may be disposed above the first outer gear 210, and the second auxiliary gear 320 may be disposed above the second outer gear 220 (see FIG. 2).

[0060] Furthermore, the balancing system 1 of this embodiment may include a plurality of elevator winding drums 20.

[0061] For example, one elevator winding drum 20 may be disposed on a first drive shaft L1 connected to a first central gear 110, and another elevator winding drum 20' may be disposed on a second drive shaft L2 connected to a second central gear 120.

[0062] In this embodiment, the second drive shaft L2 can be rotated clockwise or counterclockwise as required.

[0063] In addition, the balance system 1 of this embodiment includes a reduction motor 61 that can decelerate the first drive shaft L1, a first brake 62 that can stop the first drive shaft L1, and a second brake 64 that can stop the second drive shaft L2.

[0064] The first brake 62 and the second brake 64 may be automatically activated in response to a sensor. For example, a sensor may be disposed on at least one of the balancing device 10, the elevator car 30, and the elevator take-up drum 20, and when the sensor detects a situation requiring operation to be stopped (an emergency), the first brake 62 and the second brake 64 may be activated to stop the first drive shaft L1 and the second drive shaft L2.

[0065] The balancing system 1 may also include a wire guide device 40, which may be coupled to the third drive shaft L3.

[0066] At this time, a first connecting gear 52 is disposed on the third drive shaft L3, and a second connecting gear 54 is disposed on the second drive shaft L2, so that the first connecting gear 52 and the second connecting gear 54 can mesh with each other.

[0067] The connection between the first connecting gear 52 and the second connecting gear 54 may include connection by not only gears but also a chain belt or the like.

[0068] The wire guide device 40 allows the wire wound on the elevator winding drum 20 to be smoothly wound and unwound.

[0069] A rope guide unit 48 may be disposed on one side of the wire guide device 40. In this embodiment, an example will be described in which the rope guide unit 48 is disposed on the upper side of the wire guide device 40, but the position at which the rope guide unit 48 is disposed is not limited to this.

[0070] The rope guide portion 48 can move parallel to the third drive shaft L3 (along the x-axis direction).

[0071] By providing rope guide portion 48, the wire wound around elevator winding drum 20' can be smoothly wound and unwound as elevator winding drum 20' rotates.

[0072] Similarly, a first connecting gear 52 is disposed on the sixth drive shaft L6, and a second connecting gear 54 is disposed on the first drive shaft L1, and the first connecting gear 52 and the second connecting gear 54 can mesh with each other.

[0073] Wire guide device 40 is disposed on sixth drive shaft L6, and rope guide unit 48 may be disposed on one side of wire guide device 40. By disposing rope guide unit 48 on one side of wire guide device 40 in this manner, the wire wound around elevator winding drum 20′ can be smoothly wound and unwound as elevator winding drum 20′ rotates.

[0074] Here, the first drive shaft L1, the second drive shaft L2, the third drive shaft L3, and the sixth drive shaft L6 may be arranged parallel to one another.

[0075] Support members for rotatably supporting the first drive shaft L1, second drive shaft L2, third drive shaft L3, fourth drive shaft L4, fifth drive shaft L5, and sixth drive shaft L6 are formed on both sides of the drive shafts described above. Similarly, support members for rotatably supporting the drive shafts are formed on both sides of the drive shafts described below. Such support members are understood to be publicly known technology.

[0076] The forces applied to elevator take-up drum 20 by balancing device 10 are described in more detail below.

[0077] When the moving part 400 is lowered by the load adjusting part 510 connected to the balance weight 410 or the power part 520, the outer gear part 200 and the auxiliary gear 300 can rotate the central gear part 100.

[0078] Specifically, the first central gear 110 can rotate counterclockwise, and the second central gear 120 can rotate clockwise (see FIG. 2), which causes the first drive shaft L1 connected to the first central gear 110 to also rotate counterclockwise, thereby rotating the elevator take-up drum 20 counterclockwise.

[0079] In addition, the outer gear portion 200 and the auxiliary gear 300 press the central gear portion 100 downward, thereby maintaining the force applied by the elevator car 30.

[0080] In addition, a first shock absorber 910 may be disposed at the lower end of the moving part 400. The first shock absorber 910 can prevent the moving part 400 from colliding with the ground.

[0081] The moving part 400 may be made of metal so that it can apply a load to the outer gear part 200 and the auxiliary gear 300 .

[0082] Additionally, the balancing system 1 may further include an auxiliary balancing device 80 operating in conjunction with the elevator take-up drum 20, which may be provided optionally.

[0083] Specifically, the balance system 1 may further include a power connection part 70 connected to the first drive shaft L1 and an auxiliary balance device 80 that can apply force to the first drive shaft L1 via the power connection part 70.

[0084] Here, a plurality of power connection parts 70 and auxiliary balancing devices 80 may be provided.

[0085] With reference to FIG. 3, the auxiliary balancing device 80 will be described in more detail below.

[0086] The auxiliary balance device 80 may include a plurality of connecting ropes connected to the power connection portion 70, and a balance bar 810 having the connecting ropes fixed on one side and a moving weight 819 on the other side.

[0087] In addition, the connecting rope may be connected to the balance bar 810 via a first roller 832 and a second roller 834 disposed on the upper side of the balance bar 810 .

[0088] At this time, the force applied to the power connection part 70 from the balance bar 810 may change depending on the position of the moving weight 819.

[0089] As the first drive shaft L1 rotates, the connecting rope may wind and unwind, causing the balance bar 810 to move up and down.

[0090] The first roller 832 and the second roller 834 are fixed to a fixed part, and can move a plurality of connecting ropes by rotating.

[0091] Here, the fixing portion may include an upper fixing portion 822 in which the first roller 832 and the second roller 834 are arranged, a side fixing portion 824 in which a guide is installed to allow the balance bar 810 to move up and down, and a lower fixing portion 826 in which the buffer device 920 is arranged.

[0092] In addition, a shock absorber 920 can be disposed below the balance bar 810. The shock absorber 920 can prevent the balance bar 810 and the lower fixing portion 826 from coming into contact with each other.

[0093] Here, support members for supporting the lower fixing portion 826 may be formed on both sides of the lower fixing portion 826, and it may be understood that such support members are well known in the art.

[0094] A force can be applied to the power connection part 70 via such an auxiliary balance device 80, and the power connection part 70 can apply a force capable of rotating the elevator winding drum 20 via the first drive shaft L1.

[0095] Furthermore, the force applied from the auxiliary balance device 80 to the elevator take-up drum 20 can be varied depending on the position where the moving weight 819 is arranged on the balance bar 810.

[0096] For example, the greater the distance between first fixed portion 812 arranged on balance bar 810 and moving weight 819 (the longer X1), the greater the force that auxiliary balancing device 80 can apply to elevator take-up drum 20. Similarly, the closer the lengths of first fixed portion 812 arranged on balance bar 810 and moving weight 819, the smaller the force that auxiliary balancing device 80 can apply to elevator take-up drum 20.

[0097] In addition, the first fixed portion 812 may be configured to move from the balance bar 810, in which case the distance between the second fixed portion 814 and the first fixed portion 812 can be changed to vary the force applied to the elevator winding drum 20.

[0098] In addition, the force applied to the power connection part 70 may change depending on the distance X1 between the first fixed part 812 arranged on the balance bar 810 and the moving weight 819, and the distance X2 between the first fixed part 812 arranged on the balance bar 810 and the second fixed part 814.

[0099] Here, the first fixed portion 812 is provided movably, and the ratio of the distance X1 between the first fixed portion 812 and the moving weight 819 and the distance X2 between the first fixed portion 812 and the second fixed portion 814 can be adjusted.

[0100] By adjusting the moving weight 819 according to the weight of the elevator car 30, the auxiliary balancing device 80 can function as a conventional balancing weight.

[0101] A third roller 852 is formed on the side of the balance bar 810 of the auxiliary balance device 80, and the third roller 852 may be provided to move along the side fixing part 824. This allows the balance bar 810 to move in the up and down direction (z-axis direction) along the side fixing part 824.

[0102] Furthermore, the moving weight 819 disposed on the balance bar 810 can move in the left-right direction (y-axis direction).

[0103] In addition, a sensor can detect weight (for example, the weight of the elevator car 30, the weight on the first connecting rope R1, the second connecting rope R2, and the third connecting rope R3, etc.) and automatically move the moving weight 819 left and right.

[0104] Additionally, a fourth roller 854 is disposed on the balance bar 810 spaced apart on one side from the moving weight 819 .

[0105] A fourth roller 854 is arranged on the balance bar 810 spaced apart on the other side from the moving weight 819, and a moving weight moving rope 862 can connect the moving weight 819 to the fourth rollers 854 arranged on both sides of the moving weight 819.

[0106] The control box 864 can rotate at least one of the plurality of fourth rollers 854 to move the moving weight 819 left and right on the balance bar 810 .

[0107] The auxiliary balancing device 80 may also include a control box 864 that is fixed to one side of the side fixing portion 824 and controls the rotation of the fourth roller 854 .

[0108] In addition, the first fixing portion 812 disposed on the balance bar 810 can also be moved from the balance bar 810 to another position, thereby adjusting the distance between X1 and X2.

[0109] The auxiliary balancing device 80 may also include a plurality of connecting ropes connected to the power connection part 70. Here, the connecting ropes may be provided as winding ropes or chains.

[0110] Specifically, the connecting ropes may include a first connecting rope R1 connecting the balance bar 810 and the first winding drum 734 of the power connection unit 70, a second connecting rope R2 connecting the balance bar 810 and the third winding drum 714 of the power connection unit 70, and a third connecting rope R3 connecting the balance bar 810 and the second winding drum 724 of the power connection unit 70.

[0111] Here, the third connecting rope R3 may be connected to the second fixed portion 814, the second connecting rope R2 may be connected to the third fixed portion 816, and the first connecting rope R1 may be connected to the first fixed portion 812.

[0112] Here, the second fixed portion 814 and the third fixed portion 816 are disposed opposite each other on the balance bar 810 , and the first fixed portion 812 can be disposed between the second fixed portion 814 and the moving weight 819 .

[0113] The power connection section 70 may include a second winding drum 724 connected to the third connecting rope R3, a third winding drum 714 connected to the second connecting rope R2, a first winding drum 734 connected to the first connecting rope R1, a second gear 722 that rotates integrally with the second winding drum 724, a third gear 712 that rotates integrally with the third winding drum 714, and a first gear 732 arranged so that the second gear 722 and the first gear 732 mesh with each other.

[0114] The third gear 712 may be fixed to a first drive shaft L1, and a third winding drum 714 may be fixed to the first drive shaft L1.

[0115] That is, the first drive shaft L1 can be rotated by the auxiliary balance device 80, which in turn rotates the elevator winding drum 20 connected thereto.

[0116] However, the concept of the present invention is not limited to this, and power can also be generated by providing a power generating device or the like on the first drive shaft L1.

[0117] The above-described FIG. 4 can be understood as a structure in which the pushing force and pulling force generated by maintaining the balance of the balance bar 810 are combined into one force.

[0118] In addition, a sensor is attached to the elevator winding drum 20, and the rotation speed of the elevator winding drum 20 can be transmitted to the reduction motor to maintain a constant rotation speed.

[0119] When the elevator take-up drum 20 is overwound or underwound with wire, the elevator car 30 moves faster or slower (for example, when the elevator take-up drum 20 is larger or smaller).

[0120] Also, multiple elevator winding drums 20 can be installed and connected in series or in parallel.

[0121] The wire guide device 40 can rotate in the same direction as the elevator winding drum 20, which is disposed on the first drive shaft L1 or the second drive shaft L2, and is linked with the elevator winding drum 20 by gears, a chain belt, etc., so that the wire guide device 40 can smoothly wind and unwind the elevator winding drum 20.

[0122] A fifth roller 842, a sixth roller 844, and a seventh roller 846 may be disposed on the lower fixed portion 826.

[0123] The first connecting rope R1 can be connected to the power connection part 70 via the fifth roller 842, the second connecting rope R2 can be connected to the power connection part 70 via the sixth roller 844, and the third connecting rope R3 can be connected to the power connection part 70 via the seventh roller 846.

[0124] The forces applied to elevator take-up drum 20 by auxiliary balancing device 80 are described in more detail below.

[0125] The moving weight 819 applies a downward force to the balance bar 810, and multiple connecting ropes fixed to opposite sides of the moving weight 819 can rotate the first winding drum 734, the second winding drum 724, and the third winding drum 714 of the power connection section 70.

[0126] This causes the first gear 732, which rotates integrally with the first winding drum 734, to rotate, the second gear 722, which rotates integrally with the second winding drum 724, to rotate, and the third gear 712, which rotates integrally with the third winding drum 714, to rotate.

[0127] That is, the first gear 732 and the second gear 722 can be rotated counterclockwise by the first connecting rope R1 and the third connecting rope R3, and the third gear 712 can be rotated clockwise by the second connecting rope R2. However, the rotation direction changes according to the winding direction of the first connecting rope R1, the second connecting rope R2, and the third connecting rope R3, and may include rotating the first gear 732 and the second gear 722 clockwise and rotating the third gear 712 counterclockwise.

[0128] In this embodiment, the first connecting rope R1, the second connecting rope R2, and the third connecting rope R3 are described as being one rope, but it is also possible for the first connecting rope R1, the second connecting rope R2, and the third connecting rope R3 to be two or more ropes.

[0129] Furthermore, a plurality of power connection parts 70 and auxiliary balancing devices 80 can be installed.

[0130] Figure 5 shows an embodiment for shortening the rope distance of the balance weight, where Figure 5 can be understood as yet another embodiment of the power connection.

[0131] The power connection unit 70' shown in Figure 5 can increase the rotation speed of the first drive shaft L1 to which the elevator take-up drum 20 is connected. This allows the rotation speed of the elevator take-up drum 20 to be increased even if the first connecting rope R1 to the third connecting rope R3 move a short distance.

[0132] Specifically, the power connection portion 70′ may include a third gear 712 connected to the seventh drive shaft L7, a second gear 722 and a first gear 732 arranged on either side of the third gear 712, a fourth gear 912 connected to the seventh drive shaft L7, an eighth drive shaft L8 arranged parallel to the seventh drive shaft L7, a fifth gear 914 connected to the eighth drive shaft L8 and having a smaller diameter than the fourth gear 912, a sixth gear 916 connected to the eighth drive shaft L8 and having a larger diameter than the fifth gear 914, a first drive shaft L1 arranged parallel to the eighth drive shaft L8, and a seventh gear 918 arranged on the first drive shaft L1, meshing with the sixth gear 916, and having a smaller diameter than the sixth gear 916.

[0133] In this case, the elevator winding drum 20 may be connected to the first drive shaft L1.

[0134] In other words, the rotation speed of the first drive shaft L1, to which the elevator winding drum 20 is connected, can be controlled by the gear ratios of the fourth gear 912, the fifth gear 914, the sixth gear 916, and the seventh gear 918, via the seventh drive shaft L7, to which the third gear 712 is connected.

[0135] FIG. 6 is a diagram showing a balance system 1' according to yet another embodiment of the present invention.

[0136] The main difference between this embodiment and the above-described embodiment is that one elevator take-up drum 20'' is provided. Therefore, the main difference will be described below, and the above-described description and reference numerals will be used for the same matters.

[0137] The power connection unit 70 and the auxiliary balancing device 80 of the above-described embodiment are respectively the same as the power connection unit 70' and the auxiliary balancing device 80' of this embodiment, and the description thereof will be substituted for the above description.

[0138] In another embodiment of the present invention, the balance system 1′ includes an elevator winding drum 20″ to which an elevator car 30′ is connected, a pair of central gear units 100′ connected to a first drive shaft L1′ of the elevator winding drum 20″ and rotating in contact with each other, and a pair of outer gear units 200′ respectively abutting against the pair of central gear units 100′ and rotating in contact with each other, so that when the elevator car 30′ applies a force to the elevator winding drum 20″ in a first direction, the central gear unit 100′ can apply a force to the elevator winding drum 20″ in a direction opposite to the first direction due to the force applied by the outer gear unit 200′.

[0139] In the above-described embodiment, the first drive shaft L1 is connected to the first central gear 110, but in this embodiment, the first drive shaft L1' is connected to the second central gear 120'.

[0140] In addition, in the above-described embodiment, the third gear 712 and the first central gear 110 were connected to the first drive shaft L1, but in this embodiment, the third gear 712' and the second central gear 120' are connected to the first drive shaft L1'.

[0141] FIG. 7 is a diagram showing a balance system 1'' according to yet another embodiment of the present invention.

[0142] The main difference between this embodiment and the embodiment described above with reference to FIGS. 1 to 5 is that one elevator take-up drum 20''' is provided. Therefore, the main difference will be described below, and the same details will be referred to by the above description and reference numerals.

[0143] The power connection unit 70 and the auxiliary balancing device 80 of the above-described embodiment are the same as the power connection unit 70'' and the auxiliary balancing device 80'' of this embodiment, respectively, and the description thereof will be substituted for the above description.

[0144] In another embodiment of the present invention, the balance system 1'' includes an elevator winding drum 20''' to which an elevator car 30'' is connected, a pair of central gear units 100'' connected to a first drive shaft L1'' of the elevator winding drum 20'' and rotating in contact with each other, and a pair of outer gear units 200'' each rotating in contact with the pair of central gear units 100'', so that when the outer gear unit 200'' receives a force in a first direction from the elevator car 30'', the central gear unit 100'' can apply a force to the elevator winding drum 20'' in a direction opposite to the first direction due to the force applied by the outer gear unit 200''.

[0145] In the embodiment shown in FIGS. 1 to 5, the second central gear 120 is connected to the second drive shaft L2, but in this embodiment, the second drive shaft L2 is omitted.

[0146] 6 and 7 are diagrams that can be selected to facilitate shaft rotation. The rotation ratio is not limited and can be reduced or increased.

[0147] FIG. 8 is a diagram schematically showing a balancing device in another embodiment of the present invention, and FIG. 9 is a diagram conceptually showing the side of the first outer gear 210''', which is indirectly connected to the first central gear 110''', and the second outer gear 220''', which is indirectly connected to the second central gear 120''', in the balancing device of FIG. 8.

[0148] As shown in Figures 8 and 9, the main difference compared to the embodiments described above in Figures 1 to 5 is that a central gear portion and an outer gear portion are provided in a composite manner, and the gear type can be configured as a spur gear or a chain gear. Therefore, the main differences will be described below, and the above description and drawing symbols will be used for the same items.

[0149] 8 and 9, in another embodiment of the present invention, the balancing device may include a plurality of first central gears 110'" arranged in parallel and spaced apart from each other, a plurality of second central gears 120'" arranged in parallel and spaced apart from each other, a first outer gear 210'" directly connected to one first central gear 110'", a second outer gear 220'" directly connected to one second central gear 120'", a first outer gear 210'" indirectly connected to another one of the first central gears 110'", and a second outer gear 220'" indirectly connected to another one of the second central gears 120'".

[0150] For example, a first outer gear 210''' directly connected to one first central gear 110''' and a second outer gear 220''' directly connected to one second central gear 120''' can be directly meshed with each other using spur gears, and a first outer gear 210''' indirectly connected to another first central gear 110''' and a second outer gear 220''' indirectly connected to another second central gear 120''' can be indirectly meshed with each other using chain gears.

[0151] The first outer gear 210''' directly connected to one first central gear 110''' and the second outer gear 220''' directly connected to one second central gear 120''' are the same as those described above in Figures 1 to 5, and the above description will be substituted.

[0152] Hereinafter, with reference to FIG. 9, the first outer gear 210''' indirectly connected to another first central gear 110''' and the second outer gear 220''' indirectly connected to another second central gear 120''' will be described in more detail.

[0153] The first central gear 110''' and the first outer gear 210''' may be indirectly connected to each other.

[0154] For example, the first central gear 110''' and the first outer gear 210''' may be spaced apart from each other, and the first central gear 110''' and the first outer gear 210''' may be connected via an indirect connection means 1111.

[0155] Here, the indirect connection means 1111 may be a chain or a rope, but is not limited thereto as long as the indirect connection means 1111 can connect the first central gear 110''' and the first outer gear 210''' and transmit rotational force.

[0156] More specifically, a pair of first outer gears 210''' may be provided on one side of the first central gear 110''', spaced apart from the first central gear 110'', and the pair of first outer gears 210''' may be connected by an indirect connecting means 1111 (e.g., a chain), and the indirect connecting means 1111 may abut against the first central gear 110'''.

[0157] Similarly, a pair of second outer gears 220'' may be provided on one side of the second central gear 120''', spaced apart from the second central gear 120'', and the pair of second outer gears 220''' may be connected by an indirect connection means 1111 (e.g., a chain), which may abut against the second central gear 120'''.

[0158] FIG. 10 is a diagram schematically illustrating a balance system 1'' according to yet another embodiment of the present invention.

[0159] FIG. 11 is a conceptual diagram showing the balancing apparatus 10'' shown in FIG. 10 as viewed from the side.

[0160] The main difference between this embodiment and the embodiment described above in FIGS. 1 to 5 is that the first central gear 110 and the first outer gear 210 are installed as a single unit. Therefore, only the main differences will be described, and the same matters will be referred to by the above description and reference numerals.

[0161] In the above-described embodiment, the present invention is driven by a pair of central gear units 100 and a pair of outer gear units 200, but the concept of the present invention is not limited thereto and may include the case where the present invention is driven by one first central gear 110'' and one second central gear 120''.

[0162] 10 and 11 show an elevator winding drum 20 connected to an elevator car 30, a central gear unit 100 connected to a first drive shaft L1 of the elevator winding drum 20 and including a first central gear 110, and an outer gear unit 200 including a first outer gear 210 that rotates in contact with the first central gear 110. When the elevator car 30 applies a force to the elevator winding drum 20 in a first direction, the central gear unit 100 can apply a force to the elevator winding drum 20 in a direction opposite to the first direction due to the force applied from the outer gear unit 200.

[0163] FIG. 12 is a diagram showing a modification of FIG.

[0164] Referring to FIG. 12, a plurality of auxiliary balancing devices 80 and corresponding first to third winding drums 734''' to 714''' may be arranged.

[0165] The first connecting drum 991 and the second connecting drum 992 can be connected by one of a wire, a chain, and a belt, and the third connecting drum 993 and the fourth connecting drum 994 can also be connected by one of a wire, a chain, and a belt.

[0166] Specifically, referring to FIG. 12, a plurality of winding drum sets and a first connecting drum 991 may be connected to the eleventh driving shaft L11.

[0167] Here, the winding drum set can include a first winding drum 734''', a second winding drum 724''', and a third winding drum 714''' arranged in parallel.

[0168] For example, the 11th drive shaft L11 may include a winding drum set connected to one auxiliary balancing device 80, another winding drum set connected to another auxiliary balancing device 80, another winding drum set connected to yet another auxiliary balancing device 80, and another winding drum set connected to yet another auxiliary balancing device 80, and a first connecting drum 991 may be arranged between the winding drum sets.

[0169] The winding drum set includes a first winding drum 734''', a second winding drum 724''', and a third winding drum 714''', and each of the first winding drums 734''' may be connected to a first connecting rope R1 extending from the auxiliary balancing device 80, the third winding drum 714''' may be connected to a second connecting rope R2 extending from the auxiliary balancing device 80, and the second winding drum 724''' may be connected to a third connecting rope R3 extending from the auxiliary balancing device 80.

[0170] A second connecting drum 992 and a third connecting drum 993 can be arranged in parallel on the twelfth drive shaft L12.

[0171] The first connecting drum 991 arranged on the eleventh drive shaft L11 and the second connecting drum 992 arranged on the twelfth drive shaft L12 may be connected by one of a wire, a chain, and a belt, and the reference numeral 995 conceptually indicates one of the wire, the chain, and the belt.

[0172] A third connecting drum 993 to which the elevator car 30 is connected may be arranged on the thirteenth drive shaft L13.

[0173] The third connecting drum 993 arranged on the twelfth drive shaft L12 and the fourth connecting drum 994 arranged on the thirteenth drive shaft L13 may also be connected by one of a wire, a chain, and a belt, and the reference numeral 996 conceptually indicates one of the wire, the chain, and the belt.

[0174] Here, the eleventh drive shaft L11, the twelfth drive shaft L12, and the thirteenth drive shaft L13 can be arranged in parallel.

[0175] 5. Also, the eleventh drive shaft L11 may correspond to the seventh drive shaft L7 in FIG. 5, the twelfth drive shaft L12 may correspond to the eighth drive shaft L8 in FIG. 5, and the thirteenth drive shaft L13 may correspond to the ninth drive shaft L9 in FIG.

[0176] In addition, the auxiliary balancing device 80 may be provided with guide rollers that can guide the first connecting rope R1, the second connecting rope R2, and the third connecting rope R3, and the guide rollers allow the first connecting rope R1 to the third connecting rope R3 to be easily connected to the first winding drum 734''' to the third winding drum 714'''.

[0177] Similarly, a wire guide and a winding may be provided on the first winding drum 734''' to the third winding drum 714''' so that the connecting rope can be easily wound and unwound on each of them. Here, it can be understood that the guide roller, the wire guide, and the winding are known in the art.

[0178] Figure 13 shows an embodiment in which multiple first connecting ropes R1, third connecting ropes R3 and second connecting ropes R2 are connected to the first winding drum 734''', the second winding drum 724''', and the third winding drum 714''', respectively, of Figure 12.

[0179] Referring to FIG. 13, multiple (e.g., three) first connecting ropes R1 can be extended from the auxiliary balancing device 80, and the multiple first connecting ropes R1 can be formed into one first composite rope R41, which can then be connected to the first winding drum 734'''.

[0180] In addition, multiple (e.g., three) second connecting ropes R2 can be output from the auxiliary balance device 80, and the multiple second connecting ropes R2 can be formed into one second composite rope R42, after which the first composite rope R41 can be connected to the first winding drum 734''''.

[0181] Similarly, multiple (e.g., three) third connecting ropes R3 can be output from the auxiliary balance device 80, and the multiple third connecting ropes R3 can be formed into one first composite rope R41, after which the third composite rope R43 can be connected to the first winding drum 734''''.

[0182] In this way, by providing multiple first connecting ropes R1 to third connecting ropes R3, and then forming the multiple first connecting ropes R1 into a single first composite rope R41, the multiple second connecting ropes R2 into a single second composite rope R42, and the multiple third connecting ropes R3 into a single third composite rope R43, an even greater force can be stably applied to the drive shaft from the auxiliary balancing device 80.

[0183] While the balancing device 10 and the balancing system 1 including the same according to the embodiments of the present invention have been described above using specific examples, these are merely examples, and the present invention is not limited thereto and should be construed as having the broadest scope based on the basic concepts disclosed herein. Those skilled in the art may implement embodiments not disclosed herein by combining and substituting the disclosed embodiments, but this would also not depart from the scope of the present invention. In addition, those skilled in the art may easily modify or change the embodiments disclosed based on this specification, and it is clear that such modifications and changes also fall within the scope of the present invention. [Industrial Applicability]

[0184] The balancing device and the balancing system including the same of the present invention are industrially applicable. [Explanation of symbols]

[0185] 1: Balance system 1': Balance system 1): Balance System 10:Balance device 10): Balance device 10': Balance device 10": Balance device 100: Central gear 100': Central gear 100": Central gear 100': Central gear 1000:Pedestal 110: 1st central gear 110': 1st central gear 110): First central gear 110': 1st central gear 1111: Indirect connection means 120: Second central gear 120': Second central gear 120'': Second central gear 120': Second central gear 20: Elevator winding drum 20': Elevator winding drum 20): Elevator winding drum 20': Elevator winding drum 200: Outer gear part 200': Outer gear section 200: Outer gear part 200': Outer gear part 210: First outer gear 210): First outer gear 210': First outer gear 220: Second outer gear 220: Second outer gear 220': Second outer gear 30: Elevator car 30': Elevator car 30): Elevator car 300: Auxiliary gear 310: 1st auxiliary gear 320: Second auxiliary gear 40: Wire guide device 400: Mobile unit 410: Balance weight 48: Rope guide section 510: Load adjustment section 52: First connecting gear 520: Power part 524: Power control box 526: Control valve 54: Second connecting gear 600: Roller 61: Reduction motor 62: First brake 64: Second brake 70: Power connection part 70': Power connection 70: Power connection 700: Support part 712: 3rd gear 712': 3rd gear 714: 3rd winding drum 722: Second gear 724: Second winding drum 732: 1st gear 734: First winding drum 80: Auxiliary balance device 80': Auxiliary balance device 80'': Auxiliary balance device 810: Balance bar 812: 1st fixed part 814:Second fixed part 816: Third fixed part 819: Moving weight 822: Upper fixed part 824: Side fixing part 826: Lower fixed part 832: First Roller 834: Second Roller 842: 5th Roller 844: 6th Roller 846: 7th Roller 852: Third Roller 854: 4th Roller 862: Moving weight moving rope 864: Control box 910: 1st shock absorber 912: 4th gear 914: 5th Gear 916: 6th Gear 918: 7th Gear 920:Buffer device L1: First drive shaft L1': First drive shaft L1: First drive shaft L1': First drive shaft L2: Second drive shaft L3: Third drive shaft L6: 6th drive shaft L7: 7th drive shaft L8: 8th drive shaft R1: First connecting rope R2: Second connecting rope R3: Third connecting rope R41: 1st composite rope R42: Second composite rope R43: Third composite rope 734': First winding drum 724': Second winding drum 714': Third winding drum 991: 1st connecting drum 992: 2nd connecting drum 993: 3rd connecting drum 994: 4th connecting drum L11: 11th drive shaft L12: 12th drive shaft L13: 13th drive shaft

Claims

1. an elevator winding drum to which the elevator car is coupled; a central gear assembly coupled to a first drive shaft of the elevator take-up drum and including a first central gear; an outer gear unit including a first outer gear that rotates in contact with the first central gear; a moving part that is connected to the outer gear part and is movable relative to the central gear part; a balance weight disposed on one side of the moving part; and a load adjustment unit that can apply a force to the moving unit, when the elevator car applies a force to the elevator winding drum in a first direction, the central gear portion applies a force to the elevator winding drum in a direction opposite to the first direction due to the force applied from the outer gear portion; The central gear portion is a first central gear and a second central gear that rotate in contact with each other; the first central gear is coupled to a first drive shaft; The outer gear portion is a first outer gear that meshes with the first central gear; a second outer gear meshing with the second central gear, the first central gear and the second central gear are fixed in a gravity direction, and the first outer gear and the second outer gear are provided movably in the gravity direction; Balancing device.

2. The balancing device according to claim 1; a power connection coupled to the first drive shaft; further comprising an auxiliary balancing device capable of applying a force to the first drive shaft through the power connection. Balance system.

3. The auxiliary balancing device is a plurality of connecting ropes connected to the power connection portion; a balance bar to which the connecting rope is fixed on one side and to which a moving weight is provided on the other side; The force applied from the balance bar to the power connection part changes depending on the position of the moving weight. The balancing system of claim 2 .

4. The plurality of connecting ropes are connected to the balance bar via rollers arranged on the upper side and rollers arranged on the lower side of the balance bar. The balancing system of claim 3 .

5. the auxiliary balance device and the power connection part are connected via a first connecting rope, a second connecting rope, and a third connecting rope; the first connecting rope applies a force that rotates the first gear of the power connection; The second connecting rope applies a force that rotates the third gear of the power connection portion, the third connecting rope applies a force that rotates the second gear of the power connection portion; When the third gear rotates clockwise, the second gear and the first gear rotate counterclockwise; 3. The balance system of claim 2, wherein when a force is generated by the balance bar to lift the third connecting rope, the third connecting rope rotates the second gear counterclockwise, and as the second gear rotates counterclockwise, the third gear rotates clockwise to pull the second connecting rope and simultaneously rotate the first drive shaft, thereby canceling out the force applied by the elevator car.

6. The balance system comprises: a plurality of first central gears arranged in parallel and spaced apart from one another; a plurality of second central gears arranged in parallel and spaced apart from one another; a first outer gear directly connected to one first central gear, and a second outer gear directly connected to one second central gear; 3. The balancing system of claim 2, further comprising a first outer gear indirectly connected to another one of the first central gears, and a second outer gear indirectly connected to another one of the second central gears.

Images