CN110759208B - Elevator device for inhibiting vibration of traction machine and elevator - Google Patents

Elevator device for inhibiting vibration of traction machine and elevator Download PDF

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Publication number
CN110759208B
CN110759208B CN201911038961.0A CN201911038961A CN110759208B CN 110759208 B CN110759208 B CN 110759208B CN 201911038961 A CN201911038961 A CN 201911038961A CN 110759208 B CN110759208 B CN 110759208B
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elastic
traction machine
layer
vibration
fixed
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CN110759208A (en
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蔡晓华
俞英杰
童正国
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Shanghai Mitsubishi Elevator Co Ltd
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Shanghai Mitsubishi Elevator Co Ltd
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F16F15/085—Use of both rubber and metal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/0005—Attachment, e.g. to facilitate mounting onto confer adjustability

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The invention relates to the technical field of elevators, in particular to an elevator device and an elevator for inhibiting the vibration of a traction machine, wherein the elevator device comprises a hoistway, an elevator car, a counterweight, a steel wire rope, the traction machine, a base, a bearing beam and a vibration-proof device, wherein the vibration-proof device comprises: an upper elastic layer comprising: the first upper plate is fixedly connected with the base; the first elastic body is fixed at the lower end of the first upper plate; an intermediate mass layer comprising: the first mass body is fixed at the lower end of the upper elastic layer; at least one second mass body is fixed on one side of the first mass body through a bolt; a lower elastic layer comprising: the second elastic body is fixed at the lower end of the first mass body; and the first lower plate is fixed at the lower end of the second elastic body and is fixed with the bearing beam. The technical scheme of the invention has the beneficial effects that: the vibration of the traction machine can be effectively inhibited, the natural frequency of the system can be effectively adjusted, the resonance is avoided, and the risk of overturning is avoided.

Description

Elevator device for inhibiting vibration of traction machine and elevator
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator device for inhibiting vibration of a traction machine and an elevator.
Background
In general, a vibration isolation device disposed between a hoisting machine of an elevator and a building can suppress vibration transmitted from the hoisting machine to the building. However, in recent years, as the speed of elevators increases, the speed of elevators in high-rise residential buildings, which are particularly required to have high noise, has increased, and the vibration suppression efficiency of elevators has also been increasingly required.
In the prior art, two ends of a bearing beam are directly fixed with a building, for example, two ends of the bearing beam are embedded in a building wall, namely, the bearing beam and the building are integrated, and a vibration-proof device is arranged between a base of a traction machine and the bearing beam. And then, a layer of anti-vibration device is additionally arranged at the lower parts of the two ends of the bearing beam, which is equivalent to form two-stage anti-vibration, so that the vibration of the traction machine can be effectively inhibited. Generally, the suppression effect of vibration is expressed by a vibration transmissivity, which is a ratio of a transmitted force FT to a force F of a vibration source, that is, FT/F, and a smaller vibration transmissivity indicates a better suppression effect of vibration. As shown in fig. 9, it can be seen that the curve marked with "x" is a vibration transmissivity curve in the prior art, the natural frequency is at the frequency f1, the vibration is amplified, the curve marked with "□" is a vibration transmissivity curve of the secondary vibration isolation, the natural frequencies are at the frequencies f21 and f22, the vibration is amplified, and it can be seen that the secondary vibration isolation has a better effect of suppressing the vibration in the high frequency portion. However, when the noise interference of the elevator is reflected by people in the building, the elevator is put into normal use, and the transformation into the secondary vibration prevention requires a certain cost and needs to dismantle a part of the wall body.
In the other mode in the prior art, a layer of anti-vibration device is additionally arranged between the traction machine and the base of the traction machine to form secondary anti-vibration, so that the vibration of the traction machine can be effectively inhibited. However, this causes a problem that the traction machine easily topples.
In addition, in the above two systems, since the two-stage vibration isolation is adopted, the system is changed from the original one natural frequency to two natural frequencies, and if the two natural frequencies of the system are consistent with the vibration frequency of the hoisting machine, resonance occurs, the vibration of the hoisting machine is amplified, and the vibration transmitted to the building is also increased. Therefore, the above problems are difficult problems to be solved by those skilled in the art.
Disclosure of Invention
In view of the above problems in the prior art, an elevator apparatus and an elevator are provided to effectively suppress vibration of a hoisting machine and prevent resonance.
The specific technical scheme is as follows:
the present invention provides an elevator apparatus for suppressing vibration of a hoisting machine, the elevator apparatus including a hoistway, an elevator car, a counterweight, a wire rope, the hoisting machine, a base fixed to a lower end of the hoisting machine, a bearing beam fixed between building walls at both ends, and at least one vibration preventing device fixed between the base and the bearing beam, the vibration preventing device being characterized by comprising:
an upper elastic layer, the upper elastic layer comprising:
the center of the first upper plate is fixedly connected with the base through a bolt;
the first elastic body is fixed at the lower end of the first upper plate;
an intermediate mass layer, the intermediate mass layer comprising:
the first mass body is fixed at the lower end of the upper elastic layer;
the second mass body is fixed on one side of the first mass body, which deviates from the direction of the traction machine, through a bolt;
a lower elastic layer, the lower elastic layer comprising:
the second elastic body is fixed at the lower end of the first mass body;
the first lower plate is fixed at the lower end of the second elastic body and is fixed with the bearing beam through a bolt;
the projection centers of the upper elastic layer, the first mass body and the lower elastic layer in the vertical direction are overlapped with each other, and the risk of overturning is avoided.
Preferably, the first upper plate comprises a first internal thread seat for matching with a bolt to fasten the first upper plate and the base.
Preferably, the upper elastic layer, the middle mass layer and the lower elastic layer are split, and the upper elastic layer further comprises a second lower plate fixed to the lower end of the first elastic body, for connecting the first elastic body and the first mass body;
the lower elastic layer further comprises a second upper plate fixed at the lower end of the first mass body and used for connecting the first mass body with the second elastic body.
Preferably, the second upper plate comprises a second internal thread seat for matching with a bolt to fasten the second upper plate and the first mass body.
Preferably, the upper elastic layer, the middle mass layer and the lower elastic layer are integrated, the first elastic body is fastened to the upper end of the first mass body in advance through a casting manner or an adhesion manner, and the second elastic body is fastened to the lower end of the first mass body in advance through a casting manner or an adhesion manner.
Preferably, the base for supporting the traction machine includes:
the base upper layer is fixedly connected with the bottom end of the traction machine;
and the base lower layer is fixedly connected with the first upper plate.
Preferably, the vibration isolator further comprises a third elastic body fixed to an upper end of the lower layer of the base for increasing an elastic coefficient of the vibration isolator.
Preferably, the first elastic body comprises a first through hole, and the third elastic body passes through the first through hole to a first threaded hole in the first mass body through a bolt so as to fasten the third elastic body with the upper elastic layer and the first mass body.
Preferably, the anti-vibration device further includes a third elastic body fixed to a lower end of the bearing beam for increasing an elastic coefficient of the anti-vibration device.
Preferably, the second elastic body includes a second through hole, and the third elastic body passes through the second through hole to a second threaded hole in the first mass body through a bolt so as to fasten the third elastic body with the load-bearing beam, the lower elastic layer and the first mass body.
Preferably, the elastic modulus and size of the upper elastic layer are the same as the elastic modulus and size of the lower elastic layer.
The present invention also provides an elevator including the elevator apparatus for suppressing vibration of a hoisting machine as described above.
The technical scheme of the invention has the beneficial effects that: through fixing at least one antivibration device between base and spandrel girder, can effectively restrain the vibration of hauler, can effectively adjust the natural frequency of system simultaneously, avoid resonant emergence, and have the risk of avoiding producing the toppling.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.
Fig. 1 is a schematic structural view of an elevator apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of the structure of the first embodiment of the present invention;
FIG. 3 is a left side view of a first embodiment of the present invention;
FIG. 4 is a top view of a first embodiment of the present invention;
fig. 5 is a sectional view of a vibration isolator in a second embodiment of the present invention;
fig. 6 is a sectional view of a vibration preventing device in a third embodiment of the present invention;
fig. 7 is a sectional view of a vibration preventing device in a fourth embodiment of the invention;
fig. 8 is a sectional view of an antivibration device in a fifth embodiment of the invention;
FIG. 9 is a graph of vibration transfer according to the prior art;
fig. 10 is a graph showing vibration transmission in the embodiment of the present invention.
The reference numerals in the above description denote descriptions:
a hoistway (1); an elevator car (2); a return sheave (20); a counterweight (3); a counterweight return sheave (30); a wire rope (4); a traction machine (5); a traction sheave (50); a base (6); a base upper layer (60); a base lower layer (61); a building wall (7); a load-bearing beam (8); a vibration isolation device (9); an upper elastic layer (90); a first upper plate (900); a first internally threaded seat (9000); a first elastic body (901); a first via (9010); a second lower plate (902); an intermediate mass layer (91); a first mass body (910); a first threaded hole (9100); a second threaded hole (9101); a second mass body (911); a lower elastic layer (92); a second elastic body (920); a second via hole (9200); a first lower plate (921); a second upper plate (922); a second internally threaded seat (9220); a third elastic body (93); a machine room (10); a guide wheel (11).
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The first embodiment is as follows:
the invention provides an elevator device for inhibiting the vibration of a traction machine, the elevator device comprises a hoistway 1, an elevator car 2, a counterweight 3, a steel wire rope 4, the traction machine 5, a base 6 fixed at the lower end of the traction machine 5, a bearing beam 8 fixed between building walls 7 at two ends and at least one vibration-proof device 9 fixed between the base 6 and the bearing beam 8, and is characterized in that the vibration-proof device 9 comprises:
an upper elastic layer 90, the upper elastic layer 90 comprising:
a first upper plate 900, the center of the first upper plate 900 is fixedly connected with the base 6 through a bolt;
a first elastic body 901, the first elastic body 901 is fixed on the lower end of the first upper plate 900;
an intermediate mass layer 91, the intermediate mass layer 91 comprising:
a first mass body 910, the first mass body 910 being fixed to the lower end of the upper elastic layer 90;
at least one second mass body 911, wherein the second mass body 911 is fixed on one side of the first mass body 910, which is far away from the traction machine 5, through bolts;
a lower elastic layer 92, the lower elastic layer 92 comprising:
a second elastic body 920, the second elastic body 920 being fixed to the lower end of the first mass body 910; the first lower plate 921, the first lower plate 921 is fixed on the lower end of the second elastic body 920, and is fixed with the bearing beam 8 through a bolt;
the centers of projection in the vertical direction of the upper elastic layer 90, the first mass body 910, and the lower elastic layer 92 all coincide with each other for avoiding the risk of overturning.
The first upper plate 900 includes a first internally threaded socket 9000 for engaging bolts to fasten the first upper plate 900 to the base 6.
The pedestal 6 is used for supporting the traction machine 5, and includes:
a base upper layer 60, wherein the base upper layer 60 is fixedly connected with the bottom end of the traction machine 5;
a base lower layer 61, wherein the base lower layer 61 is fixedly connected with the first upper plate 900.
The elastic modulus and size of the upper elastic layer 90 is the same as the elastic modulus and size of the lower elastic layer 92.
With the elevator device provided above, as shown in fig. 1 and 2, the elevator device includes a hoistway 1, an elevator car 2, a counterweight 3, a steel wire rope 4, a traction machine 5, a base 6 fixed at the lower end of the traction machine 5 by bolts, and a bearing beam 8 fixed between building walls 7 at two ends, the elevator car 2, the counterweight 3 and the traction machine 5 moving up and down are driven by the steel wire rope 4 in a machine room 10 at the top of the hoistway 1, a first end of the steel wire rope 4 is fixed in the machine room 10 after bypassing a guide pulley 11 and a counterweight return sheave 30, a frame of the guide pulley 11 is rigidly connected with the base 6 by bolts, a second end of the steel wire rope 4 is fixed in the machine room 10 after bypassing a return sheave 20 of the elevator car 2, the elevator apparatus further includes guide rails (not shown) fixed to a wall of the hoistway 1 as a guide member for guiding the vertical movement of the elevator car 2 and the counterweight 3.
Furthermore, the elevator device further includes a control device (not shown in the figure) for sending a control command to the hoisting machine 5, and driving the elevator car 2 and the counterweight 3 to move up and down in the opposite directions in the hoistway 2 by the friction force between the traction sheave 50 and the wire rope 4, so that the hoisting machine 5 generates large vibration, therefore, at least one vibration-proof device 9 needs to be arranged between the base 6 and the bearing beam 8, the base 6 is used for supporting the hoisting machine 5 and comprises a base upper layer 60 and a base lower layer 61, wherein the upper end of the base upper layer 60 is fixedly connected with the bottom end of the hoisting machine 5 by a bolt, the lower end of the base upper layer 60 is fixedly connected with the upper end of the base lower layer 61 by a bolt, and similarly, the lower end of the base lower layer 61 is fixedly connected with the vibration-proof device 9 by a bolt.
Further, as shown in fig. 3 to 4, the number of the vibration isolators 9 in this embodiment is 4, and the vibration isolators 9 are distributed at four corners of the base 6, and each vibration isolator 9 includes, from top to bottom, an upper elastic layer 90, an intermediate mass layer 91, and a lower elastic layer 92, wherein a first female socket 9000 is provided at a central position of the first upper plate 900 in the upper elastic layer 90, passes through the base lower layer 61 and the first female socket 9000 of the first upper plate 900 by bolts, and is fastened to an upper end portion of the first elastic body 901 in the upper elastic body 90;
further, the middle mass layer 91 comprises a first mass body 910 and at least two second mass bodies 911, wherein the first mass body 910 is fixed at the lower end of the upper elastic layer 90, at least one second mass body 911 is fixed at one side of the first mass body 910 facing away from the traction machine 5 by bolts, and the number of the second mass bodies 911 can be adjusted accordingly as required.
Further, the lower elastic layer 92 includes a second elastic body 920 and a first lower plate 921, wherein the second elastic body 920 is fixed to the lower end of the first mass body 910, and the first lower plate 921 is fixed to the lower end of the second elastic body 920 and fixed to the load-bearing beam 8 by bolts.
In addition, the elastic modulus and size of the upper elastic layer 90 are the same as those of the lower elastic layer 92, and they are equivalent to springs connected in series, so that the vibration of the traction machine 5 can be effectively suppressed, and the projections of the upper elastic layer 90, the first mass body 910, and the lower elastic layer 92 in the vertical direction are overlapped, thereby avoiding the risk of overturning.
In this embodiment, the total weight of the intermediate mass layer 91 can be changed by changing the size and/or the number of the second mass bodies 911 as required, so that the natural frequency of the support system of the traction machine 5 can be changed accordingly, and therefore, when a resonance condition occurs, the natural frequency of the supporting system of the traction machine 5 can be changed only by adjusting the size and/or number of the second mass bodies 911 accordingly, thereby preventing the occurrence of resonance, as shown in fig. 10, the abscissa is the frequency f (in Hz) and the ordinate is the vibration transmissivity T, as can be seen from the figure, the natural frequencies of the support system are initially f21 and f22, when the frequency of vibration approaches f22, resonance occurs, and by changing the number of the second mass bodies 911, the natural frequency of the system is adjusted to f21 and f32, preventing the occurrence of resonance, and in addition, the vibration transmissivity curve becomes the curve labeled "Δ".
Example two:
in this embodiment, on the basis of the first embodiment, the upper elastic layer 90, the middle mass layer 91 and the lower elastic layer 92 are split, and the upper elastic layer 90 further includes a second lower plate 902 fixed to the lower end of the first elastic body 901 for connecting the first elastic body 901 and the first mass body 910;
the lower elastic layer 92 further includes a second upper plate 922 fixed to a lower end of the first mass body 910 for connecting the first mass body 910 with the second elastic body 920.
The second upper plate 922 includes a second female screw seat 9220 for fastening the second upper plate 922 to the first mass body 910 by means of a bolt.
Specifically, as shown in fig. 5, the upper elastic layer 90, the middle mass layer 91 and the lower elastic layer 92 are separated, and the upper elastic layer 90 further includes a second lower plate 902 fixed to the lower end of the first elastic body 901 for connecting the first elastic body 901 and the first mass body 910, so as to form the upper elastic layer 90 and the middle mass layer 91 into one form.
Further, the lower elastic layer 92 further includes a second upper plate 922 fixed to a lower end of the first mass body 910 for connecting the first mass body 910 with the second elastic body 920 to form the lower elastic layer 92 and the middle mass layer 91 into a single body, and a second female screw seat 9220 is provided at a central position of the second upper plate 922, and the first mass body 910 is fastened to the second upper plate 922 by a female screw 11.
In this embodiment, as in the first embodiment, since the natural frequency of the support system of the hoisting machine 5 can be changed accordingly by changing the total weight of the intermediate mass layer 91 by changing the size and/or number of the second mass bodies 911 as needed while effectively suppressing the vibration of the hoisting machine 5, when resonance occurs, the natural frequency of the support system of the hoisting machine 5 can be changed by only adjusting the size and/or number of the second mass bodies 911 accordingly, thereby preventing the occurrence of resonance.
Example three:
in this embodiment, in addition to the first embodiment, the upper elastic layer 90, the intermediate mass layer 91, and the lower elastic layer 92 are integrated, the first elastic body 901 is fastened to the upper end of the first mass body 910 in advance by casting or bonding, and the second elastic body 920 is fastened to the lower end of the first mass body 910 in advance by casting or bonding.
Specifically, as shown in fig. 6, the third embodiment is different from the second embodiment in that the upper elastic layer 90, the middle mass layer 91 and the lower elastic layer 92 are integrated, that is, the second lower plate 902 of the upper elastic layer 90 and the second upper plate 922 of the lower elastic layer 92 in the second embodiment are removed, the first elastic body 901 and the first mass body 910 can be fastened in advance by casting or bonding, and the first mass body 910 and the second elastic body 920 can be fastened in advance, so that the structure of the anti-vibration device 9 in the present embodiment is more compact, no additional bolt or mounting hole is needed, and the field installation and replacement operations are more convenient.
In this embodiment, as in the first and second embodiments, since the natural frequency of the support system of the hoisting machine 5 can be changed accordingly by changing the total weight of the intermediate mass layer 91 by changing the size and/or number of the second mass bodies 911 as necessary while effectively suppressing the vibration of the hoisting machine 5, when resonance occurs, the natural frequency of the support system of the hoisting machine 5 can be changed by only adjusting the size and/or number of the second mass bodies 911 accordingly, thereby preventing the occurrence of resonance.
Example four:
in this embodiment, in addition to the third embodiment, the vibration isolator 9 further includes a third elastic body 93, and the third elastic body 93 is fixed to the upper end of the base lower layer 61 and is used for increasing the elastic coefficient of the vibration isolator 9.
The first elastic body 901 includes a first through hole 9010, and the third elastic body 93 passes through the first through hole 9010 to the first threaded hole 9100 in the first mass body 910 through a bolt, so as to fasten the third elastic body 93 to the upper elastic layer 90 and the first mass body 910.
Specifically, as shown in fig. 7, compared with the above-described embodiment, the third elastic body 93 is added, the third elastic body 93 is disposed at the upper end of the lower base layer 61, and the third elastic body 93, the lower base layer 61, the first upper plate 900, and the first through hole 9010 of the first elastic body 901 are provided with the prepared holes, and the third elastic body 93, the prepared holes on the lower base layer 61, the first upper plate 900, and the first through hole 9010 of the first elastic body 901 are passed through by bolts, and the third elastic body 93, the first threaded hole 9100 in the first mass body 910 is passed through, the third elastic body 93, the upper elastic layer 90, and the first mass body 910 are fastened, the first elastic body 901 and the third elastic body 93 corresponding to the upper elastic layer 90 are in a parallel relationship, and the effect produced by the two is the sum of the elastic coefficients, thereby increasing the elastic coefficient of the vibration isolation device 9 and making the effect of suppressing vibration of the hoisting machine 5 better.
In addition, since the third elastic body 93 is convenient to mount and dismount, the elastic coefficient of the whole anti-vibration device 9 can be conveniently changed, that is, the natural frequency of the anti-vibration device 9 can be changed, and the bolt and the base lower layer 61 in the embodiment have no rigid contact point, so that the embodiment still has the effect of two-stage anti-vibration.
Meanwhile, in the embodiment, the total weight of the middle mass layer 91 is changed by changing the size and/or the number of the second mass bodies 911 as required, so that the natural frequency of the support system of the traction machine 5 can be changed accordingly, and therefore, when a resonance condition occurs, the natural frequency of the support system of the traction machine 5 can be changed by only correspondingly adjusting the size and/or the number of the second mass bodies 911, so as to avoid the occurrence of resonance.
Example five:
in this embodiment, in addition to the third embodiment, the anti-vibration device 9 further includes a third elastic body 93, and the third elastic body 93 is fixed to the lower end of the bearing beam 8 for increasing the elastic coefficient of the anti-vibration device 9.
The second elastic body 920 comprises a second through hole 9200, and the third elastic body 93 passes through the second through hole 9200 to the second threaded hole 9100 in the first mass body 910 through a bolt so as to fasten the third elastic body 93 with the bearing beam 8, the lower elastic layer 92 and the first mass body 910.
Specifically, as shown in fig. 8, in the present embodiment, the third elastic body 93 is fixed to the lower end of the load beam 8, and the third elastic body 93 is fastened to the load beam 8, the lower elastic layer 92 and the first mass body 910 by passing bolts through the load beam 8, the first lower plate 921, the second elastic body 920 and the second upper plate 922, so as to increase the elastic coefficient of the vibration isolation device 9, so that the effect of suppressing the vibration of the hoisting machine 5 is better.
The elastic coefficients of the upper elastic layer 90 and the lower elastic layer 92 may be different, and the first elastic body 900 of the upper elastic layer 90, the second elastic body 920 of the lower elastic layer 92, and the third elastic body 93 may be made of a material such as rubber or urethane, or may be made of a material such as a metal spring.
Meanwhile, in the embodiment, the total weight of the middle mass layer 91 is changed by changing the size and/or the number of the second mass bodies 911 as required, so that the natural frequency of the support system of the traction machine 5 can be changed accordingly, and therefore, when a resonance condition occurs, the natural frequency of the support system of the traction machine 5 can be changed by only correspondingly adjusting the size and/or the number of the second mass bodies 911, so as to avoid the occurrence of resonance.
Example six:
an elevator comprising the elevator apparatus for suppressing vibration of a traction machine according to any one of the first to fifth embodiments.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.

Claims (12)

1. An elevator apparatus for suppressing vibration of a traction machine, the elevator apparatus including a hoistway, an elevator car, a counterweight, a wire rope, a traction machine, a base fixed to a lower end of the traction machine, a bearing beam fixed between building walls at both ends, and at least one vibration preventing device fixed between the base and the bearing beam, for suppressing vibration of the traction machine, the vibration preventing device comprising:
an upper elastic layer, the upper elastic layer comprising:
the center of the first upper plate is fixedly connected with the base through a bolt;
the first elastic body is fixed at the lower end of the first upper plate;
an intermediate mass layer, the intermediate mass layer comprising:
the first mass body is fixed at the lower end of the upper elastic layer;
the second mass body is fixed on one side of the first mass body, which deviates from the direction of the traction machine, through a bolt; a lower elastic layer, the lower elastic layer comprising:
the second elastic body is fixed at the lower end of the first mass body;
the first lower plate is fixed at the lower end of the second elastic body and is fixed with the bearing beam through a bolt; the projection centers of the upper elastic layer, the first mass body and the lower elastic layer in the vertical direction are overlapped with each other, and the risk of overturning is avoided.
2. The elevator apparatus for suppressing vibration of a traction machine according to claim 1, wherein the first upper plate includes a first female screw seat for fastening the first upper plate to the base by engaging a bolt.
3. The elevator apparatus for damping vibration of a traction machine according to claim 1, wherein the upper elastic layer, the middle mass layer, and the lower elastic layer are split type, the upper elastic layer further comprising a second lower plate fixed to a lower end of the first elastic body for connecting the first elastic body and the first mass body;
the lower elastic layer further comprises a second upper plate fixed at the lower end of the first mass body and used for connecting the first mass body with the second elastic body.
4. The elevator apparatus for suppressing vibration of a traction machine according to claim 3, wherein the second upper plate includes a second female screw seat for fastening the second upper plate to the first mass body in cooperation with a bolt.
5. The elevator apparatus for suppressing vibration of a traction machine according to claim 1, wherein the upper elastic layer, the intermediate mass layer, and the lower elastic layer are integrated, the first elastic body is fastened to an upper end of the first mass body in advance by casting or bonding, and the second elastic body is fastened to a lower end of the first mass body in advance by casting or bonding.
6. The elevator apparatus for suppressing vibration of a traction machine according to claim 1, wherein the pedestal for supporting the traction machine comprises:
the base upper layer is fixedly connected with the bottom end of the traction machine;
and the base lower layer is fixedly connected with the first upper plate.
7. The elevator apparatus for suppressing vibration of a traction machine according to claim 5 or 6, wherein the vibration preventing device further comprises a third elastic body fixed to an upper end of the lower floor of the base for increasing a spring constant of the vibration preventing device.
8. The elevator apparatus for suppressing vibration of a traction machine according to claim 7, wherein the first elastic body includes a first through hole, and the third elastic body passes through the first through hole to a first screw hole in the first mass body by a bolt to fasten the third elastic body to the upper elastic layer and the first mass body.
9. The elevator apparatus for suppressing vibration of a traction machine according to claim 5, wherein the vibration preventing device further comprises a third elastic body fixed to a lower end of the load beam for increasing an elastic coefficient of the vibration preventing device.
10. The elevator apparatus for suppressing vibration of a traction machine according to claim 9, wherein the second elastic body includes a second through hole, and the third elastic body is passed through the second through hole to a second screw hole in the first mass body by a bolt to fasten the third elastic body to the load beam, the lower elastic layer, and the first mass body.
11. The elevator apparatus for suppressing vibration of a traction machine according to claim 1, wherein the elastic modulus and size of the upper elastic layer are the same as those of the lower elastic layer.
12. An elevator characterized by comprising an elevator apparatus for suppressing vibration of a traction machine according to any one of claims 1 to 11.
CN201911038961.0A 2019-10-29 2019-10-29 Elevator device for inhibiting vibration of traction machine and elevator Active CN110759208B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204251158U (en) * 2014-04-25 2015-04-08 东芝电梯株式会社 The supporting construction of towing machine
CN204938667U (en) * 2015-08-13 2016-01-06 重庆威斯特电梯有限公司 Towing machine erecting frame
CN206590725U (en) * 2017-03-28 2017-10-27 江苏伯爵电梯股份有限公司 A kind of express elevator machine frame structure
CN207434808U (en) * 2017-11-24 2018-06-01 四川科莱电梯股份有限公司 A kind of super high speed elevator multistage damping system
CN208308208U (en) * 2018-04-16 2019-01-01 东芝电梯株式会社 Elevator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204251158U (en) * 2014-04-25 2015-04-08 东芝电梯株式会社 The supporting construction of towing machine
CN204938667U (en) * 2015-08-13 2016-01-06 重庆威斯特电梯有限公司 Towing machine erecting frame
CN206590725U (en) * 2017-03-28 2017-10-27 江苏伯爵电梯股份有限公司 A kind of express elevator machine frame structure
CN207434808U (en) * 2017-11-24 2018-06-01 四川科莱电梯股份有限公司 A kind of super high speed elevator multistage damping system
CN208308208U (en) * 2018-04-16 2019-01-01 东芝电梯株式会社 Elevator

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