CN115853961B - Vibration damper for elevator traction machine - Google Patents
Vibration damper for elevator traction machine Download PDFInfo
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- CN115853961B CN115853961B CN202310099532.4A CN202310099532A CN115853961B CN 115853961 B CN115853961 B CN 115853961B CN 202310099532 A CN202310099532 A CN 202310099532A CN 115853961 B CN115853961 B CN 115853961B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
The invention discloses a vibration damper for an elevator traction machine, which comprises a top plate and a bottom plate which can move relatively, wherein a vibration damper unit is arranged between the top plate and the bottom plate along the vertical direction, a limiting plate is arranged on the side part of the bottom plate, and a shearing resistance assembly for limiting the top plate to apply shearing stress to the vibration damper unit is also arranged between the top plate and the bottom plate; the shear resistant assembly includes: a transmission member positioned on the top plate and acting with the top plate; the limiting sleeve is movably arranged between the bottom plate and the top plate; the elastic limiting piece is arranged between the limiting sleeve and the limiting plate; the transmission piece is arranged in the limiting sleeve in a sliding mode along the vertical direction, and a space for preventing rigid collision between the limiting sleeve and the bottom plate is reserved between the limiting sleeve and the bottom plate. The invention can limit the top plate to move along the non-vertical direction when the elevator traction machine operates, thereby preventing the top plate from applying transverse shearing stress to the elastic limiting piece, and ensuring that the vibration damper has good vibration damping performance and service life.
Description
Technical Field
The invention belongs to the field of elevator equipment, and particularly relates to a vibration damper for an elevator traction machine.
Background
The elevator traction machine is a power device of an elevator, also called an elevator host machine, and has the functions of conveying and transmitting power to enable the elevator to run, and generally consists of a motor, a brake, a coupling, a reduction gearbox, a traction sheave, a frame, a guide wheel, an auxiliary jigger hand wheel and the like. The elevator traction machine can generate vibration in the operation process, the vibration can be conducted to a building wall through the installation station and transmitted to a resident building to form noise which can seriously influence the sleep and health of a resident. Therefore, in the related art, a vibration damper is generally installed between the elevator traction machine and the installation station to absorb vibration energy, so as to prevent the vibration from being transmitted to the resident building. The vibration damping device in the related art generally includes a top plate and a bottom plate, between which a vibration damping unit, which is generally a vibration damping pad made of rubber, is disposed. In an ideal state, the elevator traction machine only vibrates in the vertical direction, and vibration energy is absorbed through the vibration absorption pad. However, in the actual running process, the acting force direction of the load end of the elevator traction machine on the elevator traction machine is not kept unchanged, for example, the acting force direction changes in the starting and stopping process of the elevator, and the randomness of the personnel station in the elevator car also causes the acting force direction to change each time personnel get on or off the elevator. The result is that the elevator machine will exert a non-vertical force on the damper that will cause a non-vertical displacement of the top plate of the damper. Such displacement of the top plate may apply a lateral shear stress to the damper unit, which easily damages the internal structure of the damper unit, affecting the damper performance and even causing the damper unit to fail.
Disclosure of Invention
The invention provides a vibration damper for an elevator traction machine, which is used for solving the problem that a top plate in the vibration damper in the prior art can apply shear stress to a vibration damper unit so as to reduce the vibration damping performance and the service life of the vibration damper unit.
The invention adopts the following technical scheme: the vibration damper for the elevator traction machine comprises a top plate and a bottom plate which can move relatively, wherein a vibration damper unit is arranged between the top plate and the bottom plate along the vertical direction, a limiting plate is arranged on the side part of the bottom plate, and a shearing resistant assembly for limiting the top plate to apply shearing stress to the vibration damper unit is also arranged between the top plate and the bottom plate; the shear resistant assembly includes: a transmission member positioned on the top plate and acting with the top plate; the limiting sleeve is movably arranged between the bottom plate and the top plate; the elastic limiting piece is arranged between the limiting sleeve and the limiting plate; the transmission piece is arranged in the limiting sleeve in a sliding mode along the vertical direction, and a space for preventing rigid collision is reserved between the limiting sleeve and the bottom plate.
The invention has the following beneficial effects: through setting up anti shearing module, utilize anti shearing module restriction roof to apply shear stress to the damping unit, drive the roof action when elevator hauler takes place to rock at the operation in-process, and the driving medium can follow the roof action. The action of the transmission piece along the horizontal direction can directly have acting force on the limiting sleeve, and as the elastic limiting piece is arranged between the limiting sleeve and the limiting plate, the elastic limiting piece can apply reverse acting force on the limiting sleeve, so that the action amplitude of the transmission piece along the horizontal direction is limited, and the action amplitude of the top plate and the elevator traction machine along the horizontal direction can be limited. Therefore, the roof can be limited to apply larger shearing stress to the vibration reduction unit, so that the influence of the shearing stress on the vibration reduction performance of the vibration reduction unit in the prior art is avoided, the whole vibration reduction device is ensured to have good vibration reduction performance, and meanwhile, the service life is longer.
Preferably, one end of the elastic limiting piece is arranged on the limiting plate, the other end of the elastic limiting piece is arranged on the limiting sleeve, and the spacing is formed between the limiting sleeve and the bottom plate through the force application effect of the elastic limiting piece. The spacing sleeve forms the distance with the bottom plate through the elastic spacing piece, so that the spacing sleeve is prevented from rigidly colliding with the bottom plate due to vibration when the elevator traction machine operates, and the vibration reduction effect is prevented from being influenced.
Preferably, the transmission part is a shaft body, and the limiting part is a shaft sleeve or a linear bearing. This prevents the problem of rigid collision between the shaft body and the sleeve due to an excessively large gap, and reduces the force (friction force) in the vertical direction between the shaft body and the sleeve as much as possible.
Preferably, the transmission member is fixedly mounted on the top plate.
Preferably, one end of the elastic limiting piece is arranged on the limiting plate, the other end of the elastic limiting piece is arranged on the limiting sleeve, and the spacing is formed between the limiting sleeve and the bottom plate through the force application effect of the elastic limiting piece.
Preferably, the positioning piece is a positioning plate, the positioning plate is provided with a positioning part, and the end part of the elastic limiting piece is positioned on the positioning part.
Preferably, a connecting piece is arranged between the positioning plates at the two ends of the elastic limiting piece, the connecting piece is used for limiting the distance between the positioning plates at the two ends to L, the free length of the elastic limiting piece is H, and the limiting compression length is Hmin, wherein Hmin is less than L and less than or equal to H. Therefore, according to actual needs, the spacing between the positioning plates at the two ends can be limited by the connecting piece, and the elastic limiting piece can be optionally pre-compressed, so that the elastic limiting piece has proper acting force on the limiting sleeve.
Preferably, one of the end part of the elastic limiting piece and the positioning piece is provided with a supporting foot, the other one of the end part of the elastic limiting piece and the positioning piece is provided with a positioning hole, and the end part of the elastic limiting piece is positioned on the positioning piece through the mutual matching of the supporting foot and the positioning hole.
Preferably, the limiting sleeve and/or the limiting plate are/is provided with a fixing part, the positioning piece is positioned on the limiting sleeve and/or the limiting plate through the fixing part, and the positioning piece can act relative to the fixing part to adjust the precompression degree of the elastic limiting piece. Therefore, according to actual needs, the elastic limiting piece can be selectively or not pre-compressed by adjusting the position of the positioning piece relative to the fixing part, so that the elastic limiting piece has proper acting force on the limiting sleeve.
Preferably, the vibration damping unit comprises an upper vibration damping pad, a lower vibration damping pad and a shear spring arranged between the upper vibration damping pad and the lower vibration damping pad along the vertical direction, wherein the shear spring is used for preventing the upper vibration damping pad from shifting relative to the lower vibration damping pad along the horizontal direction. The whole shearing resistance of the vibration damping unit can be further improved through the shearing resistance spring, and the upper vibration damping pad and the lower vibration damping pad in the vibration damping unit are prevented from being displaced relatively
Preferably, the bottom plate is fixedly provided with the bottom side plate all around, the roof is fixedly provided with the top side plate all around, the top side plate is located the outside of bottom side plate and have the interval that is used for preventing both to take place rigid collision between the two. The bottom side plate and the top side plate are arranged, the containing cavity can be formed through the top plate, the top side plate, the bottom plate and the bottom side plate, the influence of external illumination and dirt on the internal vibration reduction unit can be reduced, the ageing of the internal vibration reduction unit is delayed, and the service life of the vibration reduction device is prolonged.
Preferably, the bottom side plate is the limiting plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic view showing an external structure of a vibration damping device for an elevator traction machine according to a first embodiment;
FIG. 2 is an exploded view of a vibration damping device according to the first embodiment;
FIG. 3 is an exploded view of the shear resistant assembly of the first embodiment;
FIG. 4 is a schematic diagram showing the connection between the rubber column and the positioning plate in the first embodiment;
FIG. 5 is an exploded view of a vibration damping unit in accordance with the first embodiment;
fig. 6 is an exploded view of a vibration damping device for an elevator hoisting machine according to the second embodiment;
FIG. 7 is an exploded view of a shear resistant assembly of embodiment two;
fig. 8 is a schematic connection diagram of the positioning element and the fixing portion in the second embodiment.
The hydraulic damper comprises a hydraulic damper body and a hydraulic damper body, wherein the hydraulic damper body comprises a top plate 1, a top side plate 10, a screw 11, a bottom plate 20, a bottom side plate 3, a vibration damping unit 30, an upper vibration damping pad 31, a lower vibration damping pad 32, a shearing resisting spring 33, a positioning annular groove 4, a limiting sleeve 40, a fixing part 5, a spring 50, a supporting leg 6, a transmission piece 7, a positioning plate 70, a positioning protrusion 71, a rubber column 8, a screw 80, a rotary head 800 and a positioning hole. .
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Embodiments of the present invention are described below with reference to the accompanying drawings.
Embodiment one: the present embodiment provides a vibration damping device for an elevator traction machine, which includes, as shown in fig. 1 and 2, a top plate 1 and a bottom plate 2 that are relatively movable, a vibration damping unit 3 being provided between the top plate 1 and the bottom plate 2 in a vertical direction, and a shearing-resistant assembly for restricting the top plate 1 from applying shearing stress to the vibration damping unit 3 being provided between the top plate 1 and the bottom plate 2. In this embodiment, the vertical direction and the horizontal direction are the relative position directions of the elevator traction machine and the installation station, the direction of the elevator traction machine facing the installation station is taken as the vertical direction, and the direction perpendicular to the vertical direction is taken as the horizontal direction. When the vibration damper is applied, the vibration damper is assembled on an installation station, then the elevator traction machine is assembled on the vibration damper, the shearing-resistant assembly is arranged, the shearing-resistant assembly is used for limiting the top plate 1 to move along the horizontal direction relative to the bottom plate 2, so that the top plate 1 can be prevented from generating larger transverse shearing stress on the vibration damper 3, the influence of the transverse shearing stress on the vibration damper performance of the vibration damper 3 in the prior art is avoided, the vibration damper is guaranteed to have good vibration damper performance as a whole, and meanwhile, the service life is longer.
The shearing resistant assembly in the embodiment comprises a transmission member 6, a limiting sleeve 4 and an elastic limiting member, wherein the transmission member 6 is positioned on the top plate 1 and moves along with the top plate 1, and the transmission member 6 is arranged in the limiting sleeve 4 in a sliding manner along the vertical direction. The side of the bottom plate 2 is provided with a limiting plate, and in this embodiment, the bottom plate 2 is provided with a bottom side plate 20 around, the bottom side plate 20 is a limiting plate, and the elastic limiting member is arranged between the limiting sleeve 4 and the limiting plate, that is, the elastic limiting member is arranged between the limiting sleeve 4 and the bottom side plate 20. The limit sleeve 4 is movably arranged between the bottom plate 2 and the top plate 1. When the elevator traction machine shakes in the running process, the top plate 1 is driven to act, and the transmission piece 6 can follow the top plate 1 to act. The action of the transmission piece 6 along the horizontal direction can directly have acting force on the limit sleeve 4, and as the elastic limit piece is arranged between the limit sleeve 4 and the limit plate, the elastic limit piece can apply reverse acting force on the limit sleeve 4, so that the action amplitude of the transmission piece 6 along the horizontal direction is limited, and the action amplitude of the top plate 1 and the elevator traction machine along the horizontal direction can be limited. In addition, because the driving member 6 follows the action of the top plate 1, the driving member 6 also reciprocates along the vertical direction (along with the vibration of the elevator traction machine along the vertical direction), in order to avoid the limit sleeve 4 slightly moving along the vertical direction under the driving of the driving member 6 to generate rigid collision with the bottom plate 2, a space is further arranged between the limit sleeve 4 and the bottom plate 2 in the embodiment, that is, a space for preventing the rigid collision between the limit sleeve 4 and the bottom plate 2 is arranged between the limit sleeve 4 and the bottom plate 2, so that the vibration reduction effect of the vibration reduction device is avoided. In this embodiment, the spacing between the stop collar 4 and the bottom plate 2 is a gap, and no structure is provided, and it will be understood that in other embodiments, an elastomer such as a spring, a rubber pad, etc. may be provided in the spacing.
It will be appreciated that in other embodiments, a stop plate may be provided in addition. The limiting plate may be directly disposed on the base plate 2, for example, integrally formed with the base plate 2 or fixedly assembled therewith, or may be assembled in situ when the vibration damping device is assembled to the mounting station, for example, after the base plate 2 is assembled, the limiting plate may be assembled at a position on the side of the base plate 2 at the mounting station.
In this embodiment, the elastic limiting member is a spring 5, and in other embodiments, a spring plate or other elastic rods made of polymer materials with rigidity meeting the requirements may be used. It should be noted that, in the present embodiment, the elastic limiting member is provided with a higher stiffness requirement in terms of material characteristics, and in terms of purpose, the elastic limiting member is used to apply force to the limiting sleeve 4 timely and rapidly when the limiting sleeve 4 is driven to displace, so as to achieve the purpose of preventing the top plate 1 from generating transverse shear stress to the vibration reduction unit 3. Therefore, the elastic stopper does not seek to play a role of vibration reduction in the horizontal direction (if an elastic body such as a rubber vibration reduction pad is required to be used for the vibration reduction effect, the rigidity of the elastic body used may be significantly smaller than that of the elastic stopper in the present embodiment).
In this embodiment, as shown in fig. 3, one end of the spring 5 is disposed on the limiting plate, and the other end is disposed on the limiting sleeve 4, so that the limiting sleeve 4 can form a space with the base plate 2 by the urging action of the spring 5. That is, the spacing sleeve 4 forms the above-mentioned spacing with the bottom plate 2 through the spring 5, so that the spacing sleeve 4 can be prevented from rigidly colliding with the bottom plate 2 due to vibration when the elevator traction machine operates, and the vibration reduction effect is prevented from being influenced. In other embodiments, the stop collar 4 may also be mounted on the top plate 1 by the elastic body 60, i.e. the stop collar 4 does not necessarily need to be spaced from the bottom plate 2 by the urging action of the spring 5.
The driving medium 6 in this embodiment is a shaft body, the limiting member is a shaft sleeve, and the shaft body and the shaft sleeve are rectangular. It will be appreciated that in other embodiments, the shaft body and the sleeve may each be provided in the form of a cylinder, and the sleeve may be replaced by a linear bearing. This prevents the problem of severe rigid collisions between the shaft body and the sleeve due to excessive gaps, and reduces the forces (friction forces) between the shaft body and the sleeve in the vertical direction as much as possible. In this embodiment, the driving member 6 and the stop collar 4 are in clearance fit, and the clearance between the driving member 6 and the stop collar 4 is smaller to avoid severe rigid collision between the driving member and the stop collar when the traction machine vibrates, but the friction between the driving member 6 and the stop collar 4 is reduced as much as possible, so as to avoid the driving member 6 driving the stop collar 4 to generate larger displacement along the vertical direction through friction. The above object can be well achieved by the use of the shaft body and the sleeve (or the linear bearing) described above.
In combination with the illustration in fig. 4, the stop collar 4 and the stop plate in this embodiment are both provided with positioning members, and both ends of the spring 5 are respectively mounted on the stop collar 4 and the stop plate by the positioning members on the corresponding sides. In this embodiment, the positioning member is a positioning plate 7, a positioning portion is provided on the positioning plate 7, the positioning portion is a positioning protrusion 70 formed by partially protruding outwards on the positioning plate 7, and the end portion of the spring 5 is sleeved outside the positioning protrusion 70. It will be appreciated that in other embodiments, the locating portion may be a locating groove, into which the end of the spring 5 is inserted, and the locating groove may be either a circular groove or a circular groove.
In this embodiment, a connecting piece is further disposed between the positioning plates 7 located at two ends of the spring 5, specifically, the connecting piece in this embodiment is a rubber column 71, nuts are embedded at two ends of the rubber column 71, through holes are formed in the positioning plates 7, and bolts are used to penetrate through the through holes and screw in the nuts to connect the positioning plates 7 and the rubber column 71 together. The free length of the spring 5 is set to be H (the length when the spring 5 is not acted by external force), the limit compression length is set to be Hmin (the shortest length when the spring 5 is compressed), the distance between the positioning plates 7 at the two ends is limited to be L by using a connecting piece, and the size of L is limited to be Hmin < L.ltoreq.H. Therefore, according to actual needs, the spacing between the positioning plates 7 at the two ends can be limited by the connecting piece, and the spring 5 can be optionally pre-compressed, so that the spring 5 has proper acting force on the limit sleeve 4. That is, when the elevator hoisting machine is not in operation, the spring 5 may be in a free state (uncompressed state) or may be in a state having a certain compression.
In this embodiment, the bottom plate 2 is fixedly provided with the bottom side plate 20 around, and the top plate 1 is fixedly provided with the top side plate 10 around, and the top side plate 10 is located outside the bottom side plate 20 and has a space between them for preventing rigid collision. The bottom side plate 20 and the top side plate 10 are arranged, and the containing cavity can be formed through the top plate 1, the top side plate 10, the bottom plate 2 and the bottom side plate 20, so that the influence of external illumination and dirt on the internal vibration reduction unit 3 can be reduced, the ageing of the internal vibration reduction unit 3 can be delayed, and the service life of the vibration reduction device can be prolonged. In addition, the springs 5 in the present embodiment are provided with four groups, and the four groups of springs 5 are uniformly arranged around the stop collar 4, and the vibration reduction units 3 are provided between adjacent springs 5. It will be appreciated that the provision of four sets of springs 5 is a preferred manner, so that the stop collar 4 is restrained in all four orientations in the horizontal direction, with good stop action, but in other embodiments other numbers of springs 5 may be provided, at least one set of springs 5 being provided to some extent.
Further, in order to make the vibration damping unit 3 have better shearing resistance, the vibration damping unit 3 is further improved in this embodiment. As shown in fig. 5, the damper unit 3 includes a damper pad used in the prior art, but in this embodiment, the damper pad used in its entirety is divided into an upper damper pad 30 and a lower damper pad 31 for use in cooperation with a shear spring 32 interposed therebetween. Specifically, in this embodiment, the upper vibration-damping pad 30 and the lower vibration-damping pad 31 are both provided with positioning ring grooves 33, and the end portions of the anti-shear springs 32 are embedded into the positioning ring grooves 33 to realize the assembly of the two. The advantage of this is that on the one hand the inner ring surface of the shear spring can be in contact with the inner ring wall of the positioning ring groove 33 to generate a force, and on the other hand the outer ring surface of the shear spring can be in contact with the inner ring wall of the positioning ring groove 33 to generate a force. With the above arrangement, the shearing resistance of the whole vibration damping unit 3 can be further improved by the shearing resistance spring 32, and the upper vibration damping pad 30 and the lower vibration damping pad 31 which play a vibration damping role in the vibration damping unit 3 are prevented from being relatively displaced. In assembly, the upper vibration damping pad 30 is positioned on the inner surface of the top plate 1, the lower vibration damping pad 31 is positioned on the inner surface of the bottom plate 2, and in particular, the vibration damping pad is positioned and assembled with the top plate 1 and the bottom plate 2 in an adhesive manner in the embodiment. It will be appreciated that the selection of the anti-shear spring 32 is consistent with the principle of the spring 5 (i.e. the elastic limiting member), which does not pursue a better damping effect (which can be achieved in an objective manner), and the damping unit 3 mainly relies on the upper damping pad 30 and the lower damping pad 31 to perform a damping effect, and the anti-shear spring 32 mainly performs a function of preventing the upper damping pad 30 from shifting relative to the lower damping pad 31. In addition, the structure for precompression of the spring 5 in this embodiment may be applied to the shear spring 32, that is, the shear spring 5 may be in a natural state or a pre-compressed state in the initial state.
The assembly and operation of the vibration damper will be described as follows: when the vibration damper is assembled, firstly, the shearing resistant assembly is assembled between the bottom plate 2 and the bottom side plate 20, firstly, the springs 5 and the positioning plates 7 are assembled, then, the assembled springs 5 and positioning plates 7 are assembled on the limiting sleeve 4, and finally, the assembled whole body is assembled on the bottom side plate 20. The transmission piece 6 is fastened on the top plate 1 through the screw 11, and then the transmission piece 6 is aligned with the limit sleeve 4 to slide in, so that the vibration damper is assembled. In the process, the positioning and fixing of the transmission piece 6 and the top plate 1 can also be realized by an integrated forming manufacturing or welding mode. When the elevator traction machine is used, the top plate 1 is driven to shake (including vibration along the vertical direction and the horizontal direction) when the elevator traction machine shakes in the running process, and the transmission piece 6 can follow the top plate 1 to act. The action of the transmission piece 6 along the horizontal direction can directly have acting force on the limit sleeve 4, and as the elastic limit piece is arranged between the limit sleeve 4 and the limit plate, the elastic limit piece can apply reverse acting force on the limit sleeve 4, so that the action amplitude of the transmission piece 6 along the horizontal direction is limited, and the action amplitude of the top plate 1 and the elevator traction machine along the horizontal direction can be limited. Therefore, the vibration reduction unit 3 is ensured not to be subjected to larger transverse shearing stress, and the vibration reduction device is ensured to have good vibration reduction effect and longer service life.
Embodiment two: the present embodiment provides a vibration damping device for an elevator traction machine, as shown in fig. 5, 6 and 7, which is different from the above-described embodiment in that the positioning member in the present embodiment is different from the above-described embodiment, and at the same time, the structure of the spring 5 is different from the above-described embodiment. Specifically, the positioning member in this embodiment is a threaded screw rod 8, and a positioning hole 800 is provided on the screw rod 8, the end of the spring 5 is provided with a support leg 50 adapted to the positioning hole 800, and the spring 5 is mounted on the screw rod 8 by being hung in the positioning hole 800 through the support leg 50. It will be appreciated that in other embodiments, the locating hole 800 may be formed by bending the end of the spring 5, with the corresponding leg 50 provided on the screw 8. In addition, fixing portions 40 are disposed on the stop collar 4 and the stop plate, and the fixing portions 40 in this embodiment are portions on the stop collar 4, and the fixing portions 40 are provided with threaded holes, and the screw 8 is screwed into the threaded holes to be in threaded connection with the stop collar 4. The screw rod 8 can be screwed into or out of the fixing portion 40, so that the length of the spring 5 can be changed, and the spring 5 can be selectively pre-compressed or not by adjusting the position of the positioning member relative to the fixing portion 40 according to actual needs, so that the spring 5 has proper acting force on the limit sleeve 4. It will be appreciated that the fixing portion 40 may be provided on only one of the spacer 4 and the spacer plate. Further, in this embodiment, a rotating head 80 capable of rotating relative to the screw 8 is further disposed at one end of the screw 8, and the positioning hole 800 is disposed on the rotating head 80, so that when the adjustment is performed, the spring 5 is not driven to act violently due to the relative rotation between the screw 8 and the rotating head 80 during the screw 8 is screwed.
In other embodiments, the positioning member is slidable relative to the fixing portion, and a locking member for locking the positioning member and the fixing portion is provided therebetween. For example, the fixed part is formed by outwards protruding the stop collar, a through hole is formed in the fixed part, the locating piece is a round shaft which can stretch out and draw back relative to the through hole, a plurality of through holes are formed in the round shaft at intervals, and a locking pin capable of locking the round shaft is arranged in the fixed part. The above structure provided with the fixing portion and the positioning member can act relative to the fixing portion can also be applied to the first embodiment.
In the present invention, unless explicitly stated or limited otherwise in the examples, the terms "mounted," "connected," and "fixed" as used in the examples should be interpreted broadly, e.g., the connection may be a fixed connection, may be a removable connection, or may be integral, and it may be understood that the connection may also be a mechanical connection, an electrical connection, etc.; of course, it may be directly connected, or indirectly connected through an intermediate medium, or may be in communication with each other, or in interaction with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific embodiments.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (11)
1. The vibration damper for the elevator traction machine comprises a top plate (1) and a bottom plate (2) which can move relatively, wherein a vibration damper unit (3) is arranged between the top plate (1) and the bottom plate (2) along the vertical direction, and the vibration damper is characterized in that a limiting plate is arranged on the side part of the bottom plate (2), and a shearing resistance assembly for limiting the top plate (1) to apply shearing stress to the vibration damper unit (3) is also arranged between the top plate (1) and the bottom plate (2);
the shear resistant assembly includes:
a transmission member (6) which is positioned on the top plate (1) and moves following the top plate (1);
the limit sleeve (4) is movably arranged between the bottom plate (2) and the top plate (1); the method comprises the steps of,
an elastic limiting piece, one end of which is arranged on the limiting plate, the other end of which is arranged on the limiting sleeve (4), and the rigidity of which is configured to limit the moving distance of the limiting sleeve (4) and the transmission piece (6) along the horizontal direction so as to limit the shearing stress applied by the top plate (1) to the vibration reduction unit (3);
the transmission piece (6) is arranged in the limiting sleeve (4) in a sliding mode along the vertical direction, a space for preventing rigid collision is reserved between the limiting sleeve (4) and the bottom plate (2), and the spacing is formed between the limiting sleeve (4) and the bottom plate (2) through the force application effect of the elastic limiting piece.
2. The vibration damper for an elevator traction machine according to claim 1, wherein the transmission member (6) is a shaft body, and the stopper is a shaft sleeve or a linear bearing.
3. Damping device for an elevator hoisting machine according to claim 1, characterized in that the transmission member (6) is fixedly mounted on the top plate (1).
4. The vibration damper for an elevator traction machine according to any one of claims 1 to 3, wherein both the spacer (4) and the spacer plate are provided with positioning members, and both ends of the elastic spacer are mounted on the spacer (4) and the spacer plate through the positioning members on the corresponding sides, respectively.
5. The vibration damping device for an elevator traction machine according to claim 4, wherein the positioning member is a positioning plate (7), the positioning plate (7) is provided with a positioning portion, and an end portion of the elastic stopper is positioned on the positioning portion.
6. The vibration damper for elevator traction machine according to claim 5, wherein a connecting piece is provided between the positioning plates (7) at both ends of the elastic limiting piece, the connecting piece is used for limiting the distance between the positioning plates (7) at both ends to L, the free length of the elastic limiting piece is H, and the limit compression length is Hmin, wherein Hmin < L is less than or equal to H.
7. The vibration damper for an elevator traction machine according to claim 4, wherein one of the end portion of the elastic stopper and the positioning member is provided with a leg (50), the other is provided with a positioning hole (800), and the end portion of the elastic stopper is positioned on the positioning member by the leg (50) and the positioning hole (800) being engaged with each other.
8. The vibration damper for elevator traction machine according to claim 4, characterized in that the stop collar (4) and/or the stop plate are provided with a fixing portion (40), the positioning member is positioned on the stop collar (4) and/or the stop plate by the fixing portion (40), and the positioning member is movable relative to the fixing portion (40) to adjust the precompression degree of the elastic stop member.
9. The vibration damping device for an elevator traction machine according to claim 1, wherein the vibration damping unit (3) includes an upper vibration damping pad (30), a lower vibration damping pad (31), and a shear spring (32) interposed therebetween in a vertical direction, the shear spring (32) being for preventing the upper vibration damping pad (30) from being displaced in a horizontal direction with respect to the lower vibration damping pad (31).
10. The vibration damper for elevator traction machine according to claim 1, wherein the bottom plate (2) is fixedly provided with a bottom side plate (20) around, the top plate (1) is fixedly provided with a top side plate (10) around, and the top side plate (10) is located outside the bottom side plate (20) with a space therebetween for preventing rigid collision therebetween.
11. The vibration damping device for an elevator traction machine according to claim 10, characterized in that the bottom side plate (20) is the limit plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310099532.4A CN115853961B (en) | 2023-01-31 | 2023-01-31 | Vibration damper for elevator traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310099532.4A CN115853961B (en) | 2023-01-31 | 2023-01-31 | Vibration damper for elevator traction machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115853961A CN115853961A (en) | 2023-03-28 |
| CN115853961B true CN115853961B (en) | 2023-05-12 |
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| CN202310099532.4A Active CN115853961B (en) | 2023-01-31 | 2023-01-31 | Vibration damper for elevator traction machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000230603A (en) * | 1999-02-10 | 2000-08-22 | Tokkyokiki Corp | Multi-dimensionally synchronized passive vibration control device and active vibration control device |
| CN103511526A (en) * | 2013-08-21 | 2014-01-15 | 苏州市合昌电器有限公司 | Tension spring hanging head and application method thereof |
| CN211975750U (en) * | 2020-03-18 | 2020-11-20 | 山东欧华传动电气有限公司 | Shock-resistant servo controller |
| CN111677799B (en) * | 2020-06-29 | 2021-11-16 | 哈尔滨工业大学 | Three-degree-of-freedom electromagnetic vibration isolator based on horizontal pre-pressing spring |
| CN214528239U (en) * | 2021-03-26 | 2021-10-29 | 上海科格思过滤材料有限公司 | Activated carbon filter element structure |
| CN215862385U (en) * | 2021-08-05 | 2022-02-18 | 昆山宝之钢金属制品有限公司 | Anti-seismic steel structure |
| CN215763035U (en) * | 2021-08-13 | 2022-02-08 | 山海伺(北京)科技有限公司 | Three-dimensional shock isolation device capable of freely rotating in horizontal direction |
| CN217778569U (en) * | 2021-12-06 | 2022-11-11 | 西安庆安电气控制有限责任公司 | Windshield wiper pressing force adjusting device |
| CN216625172U (en) * | 2021-12-12 | 2022-05-27 | 山东三防防腐工程有限公司 | Be used for fixed protection device of hydraulic and hydroelectric engineering cable |
| CN114687283A (en) * | 2022-03-21 | 2022-07-01 | 税浩旭 | Friction displacement support that can reset |
| CN115535800B (en) * | 2022-11-30 | 2023-03-17 | 杭州静之源噪声控制技术有限公司 | Vibration damping unit and vibration damping device for traction machine |
| CN115594053B (en) * | 2022-11-30 | 2023-04-07 | 杭州静之源噪声控制技术有限公司 | Self-adaptive vibration absorber for traction machine |
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