CN112551332A - Bottom support type counterweight device of elevator and counterweight mounting structure applying same - Google Patents
Bottom support type counterweight device of elevator and counterweight mounting structure applying same Download PDFInfo
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- CN112551332A CN112551332A CN202011445180.6A CN202011445180A CN112551332A CN 112551332 A CN112551332 A CN 112551332A CN 202011445180 A CN202011445180 A CN 202011445180A CN 112551332 A CN112551332 A CN 112551332A
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- counterweight
- traction
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- frame
- bottom support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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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
- B66B11/0035—Arrangement of driving gear, e.g. location or support
- B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
- B66B11/0055—Arrangement of driving gear, e.g. location or support in the hoistway on the counterweight
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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
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
本发明提出一种电梯的底托式对重装置及应用其的对重安装结构，所述底托式对重装置包括对重架、对重块组、对重反绳轮、对重压铁、对重导靴和油盅；所述对重架的下方设有承重梁，所述承重梁的上方排列设置有若干个对重块空腔；所述对重块空腔内设置有所述对重块组；所述对重压铁可拆卸的滑动设置于所述对重架，用于所述对重块组进行压紧；所述对重反绳轮设置于所述对重架的下方；本发明降低对重架上梁的要求，降低了成本，可以有效并充分的利用所述对重架内部的对重块安装空间，同时方便所述对重块组的安装和拆卸，还可以有效的防止所述对重安装结构中曳引钢丝绳与钢丝轮之间脱槽的情况发生。
The present invention proposes a bottom support type counterweight device for an elevator and a counterweight installation structure using the same. , a counterweight guide shoe and an oil cup; a load-bearing beam is arranged below the counterweight frame, and a number of counterweight block cavities are arranged above the load-bearing beam; the counterweight block cavity is provided with the The counterweight group; the counterweight iron is detachably slidably arranged on the counterweight frame for compressing the counterweight group; the counterweight anti-rope pulley is arranged on the counterweight frame The present invention reduces the requirements on the upper beam of the counterweight frame, reduces the cost, can effectively and fully utilize the installation space of the counterweight block inside the counterweight frame, and facilitates the installation and disassembly of the counterweight block group at the same time. It can effectively prevent the occurrence of the groove between the traction wire rope and the wire wheel in the counterweight installation structure.
Description
Technical Field
The invention relates to the technical field of elevator counterweight devices, in particular to a bottom support type counterweight device of an elevator and a counterweight mounting structure applying the same.
Background
The counterweight is a component of the elevator traction system and functions to balance the weight of the car itself with the weight of a portion of the elevator load while reducing the power of the traction motor and the torque on the traction sheave or worm gear. The counterweight device is positioned in the hoistway, is connected with the car through the traction steel wire rope via the guide pulley and the traction wheel, and slides on the counterweight guide rail through the counterweight guide shoe to play a balancing role in the running process of the elevator. The traditional elevator counterweight frame consists of a left upright post, a right upright post, an upper beam and a lower beam, a counterweight diversion sheave is arranged at the upper beam of the counterweight frame, the upper beam needs to have the requirements of bearing and specification, and the cost is relatively high; when the counterweight block is installed, the counterweight diverting pulley causes certain obstruction to the installation operation, so that the counterweight block is difficult to install; when the height of the top layer of the hoistway is small, in order to meet the requirement of the running stroke of the counterweight device, the counterweight structure can only reduce the lengths of two stand columns and reduce the number of counterweight blocks, but the total weight of the counterweight device can not meet the requirement of the balance of the elevator. In addition, in order to save the space of the hoistway plane of the conventional elevator, the guide wheels are generally vertically arranged on the hoistway plane and the counterweight diversion sheave, the traction steel wire rope needs to be installed in a twisted manner, and the situation that the traction steel wire rope is out of the groove is still frequent even if a common rope blocking structure is used.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a bottom-supported counterweight device for an elevator and a counterweight mounting structure using the same, which have low cost, facilitate the mounting and dismounting of a weight block, and effectively prevent the problem of the separation of a steel wire rope from a groove.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bottom-support counterweight device of an elevator comprises a counterweight frame, a counterweight group, a counterweight diverting pulley, a counterweight pressing iron, a counterweight guide shoe and an oil cup; a bearing beam is arranged below the counterweight frame, and a plurality of counterweight cavities are arranged above the bearing beam; the counterweight group is arranged in the counterweight block cavity; the counterweight pressing iron is detachably and slidably arranged on the counterweight frame and used for pressing the counterweight group; the counterweight diverting pulley is arranged below the counterweight frame.
Preferably, the counterweight group comprises counterweight blocks which are stacked layer by layer; the counterweight block is rectangular, first convex blocks are arranged on the left side and the right side of the counterweight block, and second convex blocks are arranged on the front side and the rear side of the counterweight block; each layer of the counterweight group is formed by arranging two counterweight blocks side by side, and a winding cavity is formed between the first convex blocks of the two counterweight blocks arranged side by side.
Preferably, the counterweight diversion sheaves are provided with a plurality of counterweight diversion sheaves, the counterweight diversion sheaves are arranged below the counterweight block cavity, and the counterweight diversion sheaves are arranged at intervals along the arrangement direction of the counterweight block cavity.
Preferably, the counterweight housing further comprises an upper beam, side columns and middle columns; the side upright columns are arranged at the left end and the right end of the bearing beam, and the two ends of the side upright columns are respectively connected with the bearing beam and the upper beam; the center pillars are arranged between the side pillars, two ends of each center pillar are connected with the bearing beam and the upper beam respectively, and the counterweight cavities are formed between every two adjacent center pillars and between the center pillars and the side pillars.
Preferably, an upper fixing plate is arranged between the two upper beams, and a side fixing plate is arranged between the two side upright columns.
Preferably, the center pillar and the side pillar of the counterweight frame are both provided with the counterweight weights, and each counterweight comprises two locking sheets, a locking bolt and a nut; the two locking sheets are arranged on two sides of the middle upright post or the side upright post; the locking bolt is arranged between the two locking sheets and is used for connecting the two locking sheets; the two locking pieces are arranged on the middle upright post or the side upright post through loosening or locking of the nuts.
Preferably, be equipped with two rows between the limit stand of counterweight frame the center pillar, the center pillar with form three between the limit stand counterweight cavity, control both ends the below of counterweight cavity all is provided with counterweight diverting pulley, and it is 4 to constitute to tow than: 1 counterweight device.
Preferably, the bottom-support counterweight device further comprises a buffering adjustment seat, and the buffering adjustment seat is arranged below the counterweight frame.
A counterweight mounting structure of an elevator comprises a tractor, a traction guide wheel, a counterweight guide wheel, a traction steel wire rope set and the bottom-support counterweight device; the traction machine is arranged above the bottom-support type counterweight device; the traction guide wheel is arranged at the output end of the traction machine; the counterweight guide wheels are arranged above the bottom-support counterweight device; the counterweight guide wheel is arranged in parallel with the counterweight diversion sheave, and the traction guide wheel is arranged vertically to the counterweight diversion sheave; the traction steel wire rope group is connected with the output end of the traction machine and sequentially wound on the traction guide wheel, the counterweight diversion wheel and the counterweight guide wheel, and the traction steel wire rope group between the traction guide wheel and the counterweight diversion wheel is arranged in a twisted manner.
Preferably, the counterweight mounting structure's counterweight frame is equipped with three counterweight cavity, is located both ends about being provided with first counterweight diverting pulley and second counterweight diverting pulley respectively below the counterweight cavity, be located the centre be provided with counterweight diverting pulley above the counterweight cavity, tow the wire rope group follow the output of hauler is in proper order around locating tow leading wheel, first counterweight diverting pulley, counterweight diverting pulley and second counterweight diverting pulley, tow the leading wheel with between the first counterweight diverting pulley tow the wire rope group and set up for the distortion.
The invention has the beneficial effects that:
the invention provides a bottom-support type counterweight device of an elevator and a counterweight mounting structure applying the same, wherein the counterweight diverting pulley is arranged below the counterweight frame, and a bearing beam of the counterweight diverting pulley is positioned below the counterweight frame, so that the requirement on the upper beam of the counterweight frame is reduced, and the aim of reducing the cost is fulfilled; in addition, the installation space of the counterweight blocks in the counterweight frame can be effectively and fully utilized, the counterweight blocks can be conveniently installed and disassembled, and the situation that the traction steel wire rope and the steel wire wheel are separated from the groove can be effectively prevented.
Drawings
Fig. 1 is a schematic perspective view of a bottom-supported counterweight according to an embodiment of the present invention;
fig. 2 is a schematic view of the use of the bottom-mounted counterweight with the counterweight fully loaded in accordance with one embodiment of the present invention;
fig. 3 is a schematic perspective view of a counterweight mounting structure according to an embodiment of the present invention;
FIG. 4 is a top view of a counterweight group installation according to an embodiment of the invention;
fig. 5 is a schematic view of an included angle α in the twisted installation of a traction wire rope set according to an embodiment of the present invention;
fig. 6 is a schematic view showing an included angle β from another view angle in the twisted installation of the traction wire rope set according to an embodiment of the present invention.
Wherein: the counterweight device comprises a counterweight frame 1, a counterweight block cavity 10, a bearing beam 11, an upper beam 12, a side upright column 13, a middle upright column 14, an upper fixing plate 15, a side fixing plate 16, a counterweight block group 2, a counterweight block 21, a first convex block 211, a second convex block 212, a winding cavity 20, a counterweight sheave 3, counterweight press iron 4, a locking sheet 41, a locking bolt 42, a nut 43, a counterweight guide shoe 5, an oil cup 6, a buffer adjusting seat 7, a tractor 100, a traction guide wheel 200, a counterweight guide wheel 300, a traction steel wire rope group 400 and a bottom-supported counterweight device 500.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes a bottom-supported counterweight device of an elevator and a counterweight mounting structure using the same according to an embodiment of the present invention with reference to fig. 1 to 6, where the bottom-supported counterweight device includes a counterweight frame 1, a counterweight group 2, a counterweight diverting pulley 3, a counterweight pressing iron 4, a counterweight guide shoe 5, and an oil cup 6; a bearing beam 11 is arranged below the counterweight frame 1, and a plurality of counterweight cavities 10 are arranged above the bearing beam 11; the counterweight group 2 is arranged in the counterweight block cavity 10; the counterweight iron 4 is detachably arranged on the counterweight frame 1 in a sliding manner and is used for compressing the counterweight group 2; the counterweight diverting pulley 3 is disposed below the counterweight housing 1.
Specifically, in this embodiment, the counterweight guide shoes 5 are disposed on two sides of the counterweight housing 1, the counterweight housing is limited to slide on the guide rail in actual use of the counterweight housing, and provides a guiding function, and the oil cup 6 is disposed on the counterweight guide shoes 5, provides a lubricating operation, and reduces friction between the counterweight guide shoes 5 and the guide rail; to heavy group 2 set up in to heavy piece cavity 10, to the weight pressure of heavy group 2 on the spandrel girder 11 of counterweight frame 1, to heavy weight 4 can follow vertical direction slip setting and be in on the counterweight frame 1, when to heavy group 2 needs to fix, then will slide to the superiors to heavy weight 4 counterweight group 2 top is to the superiors compress tightly to heavy group 2, then will to heavy weight 4 fixed mounting be in lock its sliding motion on the counterweight frame 1 to the realization is right compress tightly of counterweight 21.
Most of the counterweight diversion sheave 3 in the prior art is arranged above the counterweight frame 1, which not only occupies the space of the counterweight group 2 and prevents the counterweight block 21 from being installed and detached, but also increases the burden on a cross beam above the counterweight frame 1; in this embodiment, to heavy diverting pulley 3 set up in to the below of heavily putting up 1, when the counterweight of installation this embodiment, wire rope passes to counterweight group 2 duplex winding and establishes on the heavy diverting pulley 3, not only can effectively utilize to pouring weight cavity 10, in addition installation or dismantlement during counterweight group 2, can not receive to the influence of heavily diverting pulley 3, more convenient operation compares the tradition to the counterweight of heavily diverting pulley 3 overhead type, can significantly reduce the atress of the crossbeam of heavy frame 1 top, the size specification of reducible top crossbeam and reduce its material strength requirement to reduce cost.
In addition, in order to save the hoistway plane space of the conventional elevator, usually the guide wheels and the counterweight diversion sheave 3 are vertically arranged, the traction steel wire rope needs to be twisted and installed, even if a rope blocking structure is used, the situation that the traction steel wire rope is out of the groove still frequently occurs, in the embodiment, the counterweight diversion sheave 3 is arranged below the counterweight frame 1, the included angle between the steel wire rope and the counterweight diversion sheave 3 and the guide wheels is reduced, the abrasion of the steel wire rope to the steel wire rope sheave due to the twisting installation of the steel wire rope is reduced, the situation that the traction steel wire rope is out of the groove can be effectively prevented, and the stability of the counterweight device is improved.
Further, the counterweight group 2 includes counterweight blocks 21 stacked one on another; the counterweight block 21 is rectangular, first convex blocks 211 are arranged on the left side and the right side of the counterweight block 21, and second convex blocks 212 are arranged on the front side and the rear side of the counterweight block 21; each layer of the counterweight group 2 is formed by arranging two counterweight blocks 21 side by side, and a winding cavity 20 is formed between the first convex blocks 211 of the two counterweight blocks 21 arranged side by side.
Specifically, in this embodiment, counterweight group 2 is by a layer the counterweight 21 stacks to form, can be as required right counterweight 21 increases and reduces the weight with control counterweight, counterweight 21 be the rectangle form, and its four sides all are equipped with the bellying, include first protruding piece 211 and second protruding piece 212, stack when counterweight 21, one deck is two in counterweight group 2 set up counterweight 21 side by side, two that set up side by side the laminating of second protruding piece 212 of counterweight 21 sets up, two that set up side by side form winding cavity 20 between the first protruding piece 211 of counterweight 21, when counterweight installs, wire rope follows pass in winding cavity 20 and wind.
Further, a plurality of counterweight diversion sheaves 3 are arranged, the counterweight diversion sheaves 3 are arranged below the counterweight cavities 10, and the counterweight diversion sheaves 3 are arranged at intervals along the arrangement direction of the counterweight cavities 10.
Specifically, in this embodiment, the counterweight sheave 3 is rotatably connected to the counterweight frame 1, the counterweight sheave 3 is disposed below the counterweight cavity 10, the counterweight cavities 10 are arranged in the counterweight frame 1, specifically, the counterweight sheave 3 is disposed below the first counterweight cavity 10 in the arrangement, the counterweight sheave 3 is not disposed below the second counterweight cavity 10 in the arrangement, the counterweight sheave 3 is also disposed below the third counterweight cavity 10 in the arrangement, the counterweight sheave 3 is sequentially arranged at intervals, when the counterweight device of the present invention is installed, guide wheels are disposed above the second and fourth counterweight cavities 10 in the arrangement, and the like, and a steel wire rope is sequentially wound around the counterweight sheave 3 and the guide wheels from one end of the counterweight frame 1, the steel wire rope is wound on the counterweight groups 2 with different numbers to achieve different traction ratios, the traction ratio of the counterweight device can be flexibly changed, and the application is wide.
Further, the counterweight housing 1 further comprises an upper beam 12, a side upright column 13 and a middle upright column 14; the side upright columns 13 are arranged at the left end and the right end of the bearing beam 11, and the two ends of the side upright columns 13 are respectively connected with the bearing beam 11 and the upper beam 12; the center pillars 14 are arranged between the side pillars 13, two ends of each center pillar 14 are connected to the bearing beam 11 and the upper beam 12, and the counterweight cavities 10 are formed between two adjacent center pillars 14 and between the center pillars 14 and the side pillars 13.
Specifically, in this embodiment, the counterweight housing 1 is enclosed by the load-bearing beam 11, the upper beam 12 and the side columns 13 to form a three-dimensional structure with a cavity inside, the center column 14 is disposed between the side columns 13 on the left and right sides, the center columns 14 are arranged to divide the cavity into a plurality of counterweight cavities 10, one counterweight group 2 is disposed in one counterweight cavity 10, and the center column 14 can also support the upper beam 12, so as to improve the structural stability of the counterweight housing 1; in addition, the middle upright post 14 and the side upright posts 13 are detachably connected with the upper beam 12, when the counterweight group 2 is installed, the upper beam 12 can be temporarily detached, so that an elevator installer can conveniently and directly and vertically install and place the counterweight group 2 without inclining to ensure that a placement space is obtained, and the installation efficiency of the elevator is improved; the parts on the counterweight housing 1 are fixedly connected through bolts, so that the counterweight housing 1 is convenient to mount and maintain, and the bolt fixing connection of the side upright 13, the middle upright 14, the upper beam 12 and the bearing beam 11 can be replaced by welding and fixing, so that the stability of the counterweight housing 1 is improved.
Further, an upper fixing plate 15 is arranged between the two upper beams 12, and a side fixing plate 16 is arranged between the two side columns 13.
Specifically, in this embodiment, the both ends of upper fixed plate 15 are two respectively with the front and back upper beam 12 is connected, can improve upper beam 12 mounting structure's stability, four corners of counterweight housing 1 all are equipped with side column 13, counterweight housing 1 is left two be equipped with between the side column 13 side fixed plate 16, two on counterweight housing 1 right side also be provided with between the side column 13 side fixed plate 16 for it is fixed side column 13 can improve counterweight housing 1's overall structure stability.
Further, the counterweight weights 4 are arranged on the center pillar 14 and the side pillars 13 of the counterweight housing 1, and each counterweight weight 4 includes two locking pieces 41, a locking bolt 42 and a nut 43; the two locking pieces 41 are arranged on two sides of the center pillar 14 or the side pillar 13; the locking bolt 42 is arranged between the two locking sheets 41 and is used for connecting the two locking sheets 41; the two locking pieces 41 are arranged on the center pillar 14 or the side pillar 13 through loosening or locking of the nuts 43.
Specifically, the counterweight group 2 is installed in the counterweight cavity 10, and if the counterweight group 2 is not fixed, the counterweight device may shake up and down in motion to easily cause structural looseness and instability, so in this embodiment, the counterweight weights 4 are arranged between the two side columns 13 at the front and rear ends of the counterweight frame 1 to compress the counterweight groups 2 at the two sides of the counterweight frame 1; the counterweight pressing iron 4 is also arranged between the two middle upright columns 14 in the same column, and is used for pressing the counterweight group 2 in the middle of the counterweight frame 1; when being in the sliding state to counter-weight 4, locking bolt 42 will be two the distance of stay 41 is enlarged, makes it be greater than the thickness of center pillar 14 or side pillar 13, thereby makes counter-weight 4 can along center pillar 14 or side pillar 13 carry out the sliding motion that goes up and down, when needs are locked, twists nut 43, shortens two the distance between stay 41 makes according to the frictional force stay 41 with center pillar 14 or side pillar 13 are fixed, thereby makes to counter-weight 4 can't slide, realizes right compress tightly and spacing to counterweight group 2, guarantees the stability to counterweight group 2 motion, prevents to rocking of counterweight group 2.
In addition, when the counterweight block group 2 needs to fully overlap the counterweight cavity 10, the counterweight 4 can be detached, the upper beam 12 of the counterweight frame 1 is used for compressing the counterweight block group 2, the space of the counterweight cavity 10 can be saved, and the space is effectively used to make the structure more compact.
Further, two rows of the center pillars 14 are arranged between the side pillars 13 of the counterweight housing 1, three counterweight cavities 10 are formed between the center pillars 14 and the side pillars 13, and the counterweight deflector sheaves 3 are arranged below the counterweight cavities 10 at the left and right ends to form a traction ratio of 4: 1 counterweight device.
Specifically, in the present embodiment, a traction ratio of 4: 1, the center pillar 14 is provided with two rows, so as to divide the internal cavity of the counterweight frame 1 into three counterweight cavities 10, the counterweight groups 2 are arranged in the three counterweight cavities 10, and the counterweight deflector sheaves 3 are arranged below the counterweight cavities 10 at the left end and the right end, so as to form a traction ratio of 4: the counterweight 1 of this embodiment, when installing the counterweight of this embodiment, wire rope is around establishing between three group 2 of counterweight groups for the elevator is 4: 1, the counterweight.
Further, the bottom-support counterweight device further comprises a buffering adjusting seat 7, and the buffering adjusting seat 7 is arranged below the counterweight frame 1.
Specifically, in this embodiment, the buffer adjustment seat 7 is disposed below the counterweight housing 1, and the buffer adjustment seat 7 is a collision component with a buffer in a pit of an elevator when the counterweight moves out of range in the downward direction, so as to effectively protect the counterweight in this embodiment; compared with the traditional counterweight device with the counterweight diverting pulley 3 arranged on the upper part, the buffer adjusting seat 7 and the counterweight diverting pulley 3 are positioned in the same vertical space, the structure is more compact, and the space utilization rate is improved.
The invention also provides a counterweight mounting structure of an elevator, which comprises a traction machine 100, a traction guide wheel 200, a counterweight guide wheel 300, a traction steel wire rope set 400 and the bottom-supported counterweight device 500; the traction machine 100 is arranged above the bottom-supported counterweight 500; the traction guide wheel 200 is arranged at the output end of the traction machine 100; the counterweight guide wheels 300 are arranged above the bottom-mounted counterweight device 500; the counterweight guide wheel 300 is arranged in parallel with the counterweight diverting pulley 3, and the traction guide wheel 200 is arranged perpendicular to the counterweight diverting pulley 3; the traction wire rope set 400 is connected with the output end of the traction machine 100 and sequentially wound on the traction guide wheel 200, the counterweight return pulley 3 and the counterweight guide wheel 300, and the traction wire rope set 400 between the traction guide wheel 200 and the counterweight return pulley 3 is twisted.
Specifically, in this embodiment, one end of the hoisting wire rope set 400 is connected to the hoisting machine 100, and the other end thereof sequentially passes around the hoisting guide wheel 200, the counterweight guide wheel 300, and the counterweight pulley 3, and is fixed to a load-bearing member after passing around the last counterweight pulley 3; the counterweight diverting pulley 3 and the counterweight guide pulley 300 are arranged in parallel, and the counterweight diverting pulley 3 and the traction guide pulley 200 are arranged vertically, so that the plane space of an elevator shaft can be effectively saved; furthermore, any included angle can be formed between the counterweight diverting pulley 3 and the traction guide wheel 200 or between the counterweight diverting pulley 3 and the counterweight guide wheel 300, so that different elevator shaft installation requirements can be met.
It is further described that when the steel wire rope is normally installed, the steel wire rope is parallel to the pitch circle vertical section of the steel wire rope wheel, and when the steel wire rope is installed in a twisted manner, as shown in fig. 5, the steel wire rope and the pitch circle vertical section of the steel wire rope wheel form an included angle α, which has a formula one:
wherein L isαThe horizontal distance D between the center of the rope groove of the traction guide wheel 200 and the center of the counterweight diverting pulley 31Is the pitch circle diameter, H, of the counterweight diverting pulley 31The vertical distance between the center of the traction guide wheel 200 and the center of the counterweight diverting pulley 3; the size of the included angle alpha influences the attachment degree of the steel wire rope to the steel wire rope wheel groove, and if the included angle alpha is large, the steel wire rope can be out of the groove. Compared with the traditional counterweight device with the counterweight diverting pulley 3 arranged on the upper part, the bottom-support counterweight device in the embodiment enlarges the counterweight diverting pulley 3 and the traction guidePerpendicular distance H to the center of wheel 2001According to the above formula I, the vertical distance H from the center1The larger the included angle alpha is, the smaller the included angle alpha is, the included angle alpha between the steel wire rope in the traction steel wire rope group 400 and the pitch circle vertical tangent plane of the counterweight pulley 3 or the traction guide wheel 200 is reduced, thereby reducing the possibility of rope skipping and groove separation of the traction steel wire rope group 400 and improving the operation stability of the elevator.
It is further described that, when the steel wire rope is normally installed, the center of the rope groove of the steel wire rope wheel is collinear with the steel wire rope, and when the steel wire rope is installed in a twisted manner, as shown in fig. 6, the steel wire rope and the center of the rope groove of the steel wire rope wheel form an included angle β, which has the following formula:
wherein L isβThe horizontal distance, D, between the center of the rope groove of the counterweight pulley 3 and the center of the traction guide wheel 2002Is the pitch diameter, H, of the traction guide wheel 2002The vertical distance between the center of the traction guide wheel 200 and the center of the counterweight diverting pulley 3; the size of the included angle beta influences the contact pressure of the steel wire rope to the edge of the steel wire rope wheel groove, and if the included angle beta is large, the abrasion of the steel wire rope to the edge of the steel wire rope wheel groove is aggravated. Compared with the traditional counterweight device with the overhead counterweight pulley 3, the bottom-supported counterweight device in the embodiment increases the vertical distance H between the counterweight pulley 3 and the center of the traction guide wheel 2002According to the second formula, the vertical distance H from the center2The larger the included angle β is, the smaller the included angle β between the wire rope of the traction wire rope set 400 and the center of the rope groove of the counterweight sheave 3 or the traction guide wheel 200 is, thereby reducing the abrasion of the wire rope sheave due to the twisted installation of the wire rope and improving the operation stability of the elevator.
Further, the counterweight frame 1 is provided with three counterweight cavities 10, a first counterweight pulley and a second counterweight pulley are respectively arranged below the counterweight cavities 10 at the left end and the right end, the counterweight guide wheel 300 is arranged above the counterweight cavity 10 in the middle, the traction steel wire rope group 400 is sequentially wound on the traction guide wheel 200, the first counterweight pulley, the counterweight guide wheel 300 and the second counterweight pulley from the output end of the traction machine 100, and the traction steel wire rope group 400 between the traction guide wheel 200 and the first counterweight pulley is twisted.
Specifically, in this embodiment, two rows of center pillars 14 are provided to divide the internal cavity of the counterweight housing 1 into three counterweight cavities 10, each of the three counterweight cavities 10 is provided with the counterweight group 2, the first counterweight sheave 3 and the second counterweight sheave 3 are provided below the counterweight cavities 10 at the left and right ends, the counterweight guide wheel 300 is provided above the counterweight cavity 10 in the middle, the hoisting wire rope group 400 sequentially passes around the hoisting guide wheel 200, the first counterweight sheave 3, the counterweight guide wheel 300, and the second counterweight sheave 3 from the output end of the hoisting machine 100, the hoisting wire rope group 400 passes around the second counterweight sheave 3 and is fixed to a load-bearing member, so as to form a hoisting ratio of 4: 1 elevator counterweight mounting structure.
The bottom-mounted counterweight of the present invention is not limited to a traction ratio of 4: the structure of 1 can set up multiple different quantity to the piece group as required, corresponds different quantity and tows leading wheel, counter-weight leading wheel and counter-weight diverting pulley to realize different and tow the ratio.
Other configurations and operations of a bottom-mounted counterweight device of an elevator and a counterweight mounting structure using the same according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
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| CN111689354A (en) * | 2020-07-21 | 2020-09-22 | 杭州奥立达电梯有限公司 | Counterweight device for ultra-large load goods elevator under high traction ratio condition |
| CN211687885U (en) * | 2019-08-05 | 2020-10-16 | 菱王电梯股份有限公司 | Double-row connected elevator counterweight device |
| CN213864988U (en) * | 2020-12-11 | 2021-08-03 | 菱王电梯有限公司 | Bottom support type counterweight device of elevator and counterweight mounting structure applying same |
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| GB9106818D0 (en) * | 1990-04-02 | 1991-05-22 | Otis Elevator Co | Elevator system and counterweight assembly |
| CN203372970U (en) * | 2013-07-01 | 2014-01-01 | 苏州莱茵电梯制造有限公司 | Counterweight housing with underneath-arranged diversion sheave |
| CN108773757A (en) * | 2018-06-04 | 2018-11-09 | 菱王电梯股份有限公司 | The elevator counterweight of double connection |
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| CN213864988U (en) * | 2020-12-11 | 2021-08-03 | 菱王电梯有限公司 | Bottom support type counterweight device of elevator and counterweight mounting structure applying same |
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Application publication date: 20210326 |