CN110980483A - Low-frequency vibration isolation device and elevator - Google Patents
Low-frequency vibration isolation device and elevator Download PDFInfo
- Publication number
- CN110980483A CN110980483A CN201911397263.XA CN201911397263A CN110980483A CN 110980483 A CN110980483 A CN 110980483A CN 201911397263 A CN201911397263 A CN 201911397263A CN 110980483 A CN110980483 A CN 110980483A
- Authority
- CN
- China
- Prior art keywords
- plate
- vibration isolation
- frequency vibration
- isolation device
- pressing piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
- B66B11/0273—Passive systems acting between car and supporting frame
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention relates to a low-frequency vibration isolation device and an elevator, comprising: the mounting seat is used for being assembled and connected with the car underframe; the elastic pressing piece is arranged on the mounting seat; the rigid pressing piece is arranged on the elastic pressing piece; the connecting plate is arranged on the rigid pressing piece and is used for being assembled and connected with the upper car bottom; and the fastening connecting piece is used for assembling and connecting the mounting seat, the elastic pressing piece, the rigid pressing piece and the connecting plate and enabling the elastic pressing piece and the rigid pressing piece to generate pre-pressing amount. The elevator car vibration isolation device can obviously reduce the natural frequency of the elevator car, improve the low-frequency vibration isolation capability of the car in the vertical direction, ensure the stable operation of the elevator and achieve the purpose of improving the riding comfort of passengers. In addition, the rigid pressing piece and the elastic pressing piece generate different pre-pressing amounts by adjusting the locking force of the fastening connecting piece, so that the device can be suitable for occasions with different loads.
Description
Technical Field
The invention relates to the technical field of elevator vibration isolation, in particular to a low-frequency vibration isolation device and an elevator.
Background
With the rapid development of the economy of China, the number of high-rise buildings in various regions is higher and higher, and the elevator industry is directly promoted to be developed vigorously. Meanwhile, people also put higher demands on the riding safety and comfort of the elevator.
In order to improve the comfort of passengers taking the elevator, springs or rubber vibration isolators are arranged between a rope pulley and a car frame and between the car frame and a car in the prior art to achieve the purposes of reducing vibration and improving the comfort. According to the vibration transmission principle, the rigidity of the vibration isolator is reduced, the vibration reduction effect is improved, but the compression amount is increased while the rigidity of the vibration isolator is reduced, and the stability of the elevator car is reduced. Meanwhile, according to the elevator vibration test, the vertical vibration energy of the car is mainly concentrated in the middle and low frequency range. Conventional spring or rubber vibration isolators are difficult to achieve low frequency isolation.
In the prior art, a car bottom vibration damping device with a plurality of groups of springs connected in parallel is provided, and although the car bottom vibration damping device can reduce the natural frequency of a car and has good low-frequency vibration isolation performance, the static compression amount is large, so that the running stability of an elevator is poor, and meanwhile, the risk that a car door slides out of a floor trough exists. In addition, a quasi-zero stiffness vibration damping device of a belleville spring is also available, and although the vibration isolation performance can be improved on the basis of ensuring small deformation, the buckling amount is not easy to adjust and control, and the quasi-zero stiffness vibration damping device cannot be suitable for different load occasions.
Disclosure of Invention
Therefore, a low-frequency vibration isolation device and an elevator are needed to be provided, and the problems that in the prior art, low-frequency vibration isolation and elevator operation stability cannot be considered, and different load situations cannot be suitable are solved.
The technical scheme is as follows:
in one aspect, the present application provides a low frequency vibration isolation device, comprising:
the mounting seat is used for being assembled and connected with the car underframe;
the elastic pressing piece is arranged on the mounting seat;
the rigid pressing piece is arranged on the elastic pressing piece;
the connecting plate is arranged on the rigid pressing piece and is used for being assembled and connected with the upper car bottom; and
and the fastening connecting piece is used for assembling and connecting the mounting seat, the elastic pressing piece, the rigid pressing piece and the connecting plate and enabling the elastic pressing piece and the rigid pressing piece to generate pre-pressing amount.
The low-frequency vibration isolation device is applied to being installed in the vibration isolation occasion of the elevator car, so that the low-frequency vibration in the vertical direction of the elevator car bottom is reduced, and the riding comfort of the elevator is improved. Specifically, when the car platform is used, the mounting seat can be assembled and connected with the car platform frame, the connecting plate can be assembled and connected with the upper car platform frame, then the rigid pressing piece and the elastic pressing piece are stacked and connected between the mounting seat and the connecting plate in parallel, finally the rigid pressing piece and the elastic pressing piece are locked and assembled into a whole through the fastening connecting piece, and a certain pre-pressing amount is generated by the elastic pressing piece and the rigid pressing piece through adjusting the locking force of the fastening connecting piece. At this time, the rigid abutting part has a negative stiffness characteristic (stiffness coefficient is k1), the elastic abutting part has a positive stiffness characteristic (stiffness coefficient is k2), the pre-pressing amount generated by locking the fastening connecting part represents that the rigid abutting part and the elastic abutting part are both in a certain deformation state, the pre-pressing position corresponding to the deformation state is a static balance position of the low-frequency vibration isolation device, and the total stiffness of the rigid abutting part after the negative stiffness and the positive stiffness of the elastic abutting part are combined is approximately 0 (i.e. k1+ k2 ≈ 0). Therefore, when the upper car bottom of the elevator is arranged on the vibration isolation device, because the load (namely the weight) of the upper car bottom is less than the pressure of the fastening connecting piece, the compression amount of the low-frequency vibration isolation device can be ensured to be unchanged and be always in a static balance position, namely the total rigidity of the low-frequency vibration isolation device can be kept to be zero, so that the natural frequency of the elevator car can be obviously reduced, the low-frequency vibration isolation capability of the car in the vertical direction is improved, the running stability of the elevator is ensured, and the aim of improving the riding comfort of passengers is fulfilled. In addition, the rigid pressing piece and the elastic pressing piece generate different pre-pressing amounts by adjusting the locking force of the fastening connecting piece, so that the device can be suitable for occasions with different loads.
The technical solution of the present application is further described below:
in one embodiment, the mounting seat defines a first central hole, the elastic pressing member defines a second central hole aligned with the first central hole, the rigid pressing member defines a third central hole aligned with the second central hole, the connecting plate defines a fourth central hole aligned with the third central hole, and the fastening connector is fixed in the first central hole, the second central hole, the third central hole and the fourth central hole.
In one embodiment, the mounting seat comprises a base plate and a first support plate and a second support plate which are arranged on the same side surface of the base plate in a protruding mode at intervals, the rigid pressing part comprises a bearing plate and a first fixing plate and a second fixing plate which are connected to two opposite ends of the bearing plate, and the first fixing plate and the second fixing plate are arranged at an angle to the bearing plate and are arranged downwards towards the direction of the base plate; the first fixing plate is connected with the first supporting plate, the second fixing plate is connected with the second supporting plate, the elastic pressing piece abuts against the space between the bearing plate and the base plate, and the connecting plate is in compression joint with the bearing plate.
In one embodiment, the first fixing plate, the bearing plate and the second fixing plate are made of rectangular alloy spring steel plates which are integrally bent, and form a symmetrical trapezoid structure.
In one embodiment, the first supporting plate is provided with a first slot, the second supporting plate is provided with a second slot opposite to the first slot, the first fixing plate is inserted into the first slot, and the second fixing plate is inserted into the second slot.
In one embodiment, the mounting seat further comprises a first locking member and a second locking member, the first supporting plate is provided with a first mounting through hole communicated with the first slot, the second supporting plate is provided with a second mounting through hole connected with the second slot, the first locking member is inserted into the first mounting through hole and is fixedly connected with the first fixing plate, and the second locking member is inserted into the second mounting through hole and is fixedly connected with the second fixing plate.
In one embodiment, the first locking member and the second locking member are fastening bolts, the first mounting through hole and the second mounting through hole are threaded holes, and the fastening bolts are screwed in the threaded holes and press the first fixing plate and the second fixing plate.
In one embodiment, the connecting plate comprises a bottom plate and a bump arranged on the bottom plate, the bump is in pressure connection with the receiving plate, the bump is matched with the bottom plate to form a first space avoiding part and a second space avoiding part, the first space avoiding part is matched with the first support plate in a space avoiding mode, and the second space avoiding part is matched with the second support plate in a space avoiding mode.
In one embodiment, the low frequency vibration isolation device further includes a pad plate abutting between the mounting seat and the elastic pressing member.
In one embodiment, the mounting seat is provided with a first assembling portion for assembling the car underframe, and the connecting plate is provided with a second assembling portion for assembling the upper car underframe.
In one embodiment, the first fitting portion is a first fitting hole, and the second fitting portion is a second fitting hole.
In addition, the application also provides an elevator, which comprises the low-frequency vibration isolation device.
Drawings
Fig. 1 is a schematic view of an installation structure of a low frequency vibration isolation device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a low frequency vibration isolation device according to an embodiment of the present invention;
fig. 3 is an assembly structure diagram of the rigid pressing element, the elastic pressing element, the cushion plate and the mounting seat in an embodiment of the invention.
Description of reference numerals:
10. a mounting seat; 11. a substrate; 12. a first support plate; 121. a first slot; 13. a second support plate; 131. a second slot; 14. a first locking member; 15. a second locking member; 16. a first assembly hole; 20. an elastic pressing member; 30. a rigid pressing member; 31. a bearing plate; 32. a first fixing plate; 33. a second fixing plate; 40. a connecting plate; 41. a base plate; 42. a bump; 43. a second fitting portion; 50. fastening a connecting piece; 60. a base plate; 70. a first void-avoiding portion; 80. a second void-avoiding portion; 90. an upper car bottom; 100. a car underframe; 200. a low frequency vibration isolation device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to," "disposed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the specific manner of fixedly connecting one element to another element can be implemented by the prior art, and will not be described herein, and preferably, a screw-threaded connection is used.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
The present application claims an elevator that may be any type or configuration of elevator product on the market and is not specifically limited herein. In this embodiment, the elevator is mainly composed of a car and a low-frequency vibration damping device 200. The bottom of car is installed the last sedan-chair bottom 90 and the sedan-chair bottom frame 100 of interval arrangement, and low frequency vibration isolation device 200 is installed between last sedan-chair bottom 90 and sedan-chair bottom frame 100 for alleviate or eliminate the low frequency vibration of car in the vertical direction, and then improve comfort and the experience when passenger takes the car.
As shown in fig. 1, in the assembly structure of the low frequency vibration isolation device 200, the upper platform 90 and the platform underframe 100 according to the embodiment of the present invention, considering that the loads of the car and passengers are large, and at the same time, the device offset is avoided from affecting the vibration damping capacity, in practical use, the low frequency vibration isolation device 200 usually adopts an even number of solutions uniformly arranged under the car, for example, 6 groups of low frequency vibration isolation devices 200 are used to simultaneously reduce the low frequency vibration. For ease of illustration, only 3 sets of low frequency vibration isolation devices 200 are shown, but do not represent a limitation on the present arrangement.
Referring to fig. 2, in detail, the low frequency vibration isolation apparatus 200 includes: the mounting seat 10, the elastic pressing element 20, the rigid pressing element 30, the connecting plate 40 and the fastening connector 50. The mounting seat 10 is used for being assembled and connected with the car underframe 100; the elastic pressing piece 20 is arranged on the mounting seat 10; the rigid pressing part 30 is arranged on the elastic pressing part 20; the connecting plate 40 is arranged on the rigid pressing piece 30 and used for being assembled and connected with the upper car bottom 90; the fastening connector 50 is used for assembling and connecting the mounting seat 10, the elastic pressing element 20, the rigid pressing element 30 and the connecting plate 40, and generating a pre-pressing amount for the elastic pressing element 20 and the rigid pressing element 30. That is, after assembly, the connecting plate 40, the rigid pressing element 30, the elastic pressing element 20 and the mounting base 10 are in a stacked arrangement from top to bottom.
To sum up, the implementation of the technical scheme of the application has the following beneficial effects: the low-frequency vibration isolation device 200 is applied to the vibration isolation occasion of the elevator car, and is used for reducing the low-frequency vibration in the vertical direction of the elevator car bottom and improving the riding comfort of the elevator. Specifically, when in use, the mounting seat 10 can be assembled and connected with the car platform frame 100, the connecting plate 40 can be assembled and connected with the upper car platform 90, then the rigid pressing piece 30 and the elastic pressing piece 20 are stacked and connected in parallel between the mounting seat 10 and the connecting plate 40, finally the rigid pressing piece and the elastic pressing piece 30 are locked and assembled into a whole through the fastening connecting piece 50, and a certain amount of pre-compression is generated between the elastic pressing piece 20 and the rigid pressing piece 30 by adjusting the locking force of the fastening connecting piece 50. At this time, since the rigid pressing member 30 has a negative stiffness characteristic (stiffness coefficient is k1), and the elastic pressing member 20 has a positive stiffness characteristic (stiffness coefficient is k2), the fastening connection member 50 is locked to generate a pre-pressure amount, which means that the rigid pressing member 30 and the elastic pressing member 20 are both in a certain deformation state, and the pre-pressure position corresponding to the deformation state is the static equilibrium position of the low-frequency vibration isolation device 200, and at this time, the total stiffness after the negative stiffness of the rigid pressing member 30 and the positive stiffness of the elastic pressing member 20 are combined is approximately 0 (i.e. k1+ k2 ≈ 0). Therefore, when the elevator upper car bottom 90 is arranged on the vibration isolation device, because the load (namely the weight) of the upper car bottom 90 is less than the pressure of the fastening connecting piece 50, the compression amount of the low-frequency vibration isolation device 200 can be ensured to be unchanged and be always in a static balance position, namely the total rigidity of the low-frequency vibration isolation device 200 can be approximate to 0, so that the natural frequency of the elevator car can be obviously reduced, the low-frequency vibration isolation capability of the car in the vertical direction is improved, the stable operation of the elevator is ensured, and the purpose of improving the riding comfort of passengers is achieved. In addition, by adjusting the locking force of the fastening connector 50, different pre-pressing amounts are generated on the rigid pressing member 30 and the elastic pressing member 20, so that the fastening connector can be applied to occasions with different loads.
In the static balance position, the static stiffness of the system is determined by the stiffness of the elastic pressing part, so the low-frequency vibration isolation device 200 has the characteristics of high static stiffness and low dynamic stiffness. The low-frequency vibration isolation device 200 is arranged between the elevator car bottom 90 and the car bottom frame 100, and when an elevator system does small-amplitude vertical vibration near a static balance position, the dynamic stiffness of the low-frequency vibration isolation device 200 is very low, and the natural frequency of the vibration isolation system is very low, so that the vibration isolation initial frequency is very low, the vibration isolation frequency band is wide, the vertical vibration transmitted to the elevator car bottom 90 by the elevator car frame can be effectively isolated, the vibration of the car is reduced, and the riding comfort of passengers is improved.
In this embodiment, the mounting base 10 is provided with a first mounting portion for mounting the car underframe 100, and the connecting plate 40 is provided with a second mounting portion for mounting the upper car underframe 90. Therefore, the mounting seat 10 can be quickly and firmly assembled and fixed with the car underframe 100 through the first assembling part; the connecting plate 40 can be quickly and firmly assembled and fixed with the upper platform 90 through the second assembling portion.
Referring to fig. 2, in particular, in an embodiment, the first mounting portion is a first mounting hole 16, and the second mounting portion is a second mounting hole 43. During installation, the bolts can be directly locked and assembled with the first assembling holes 16 and the preset threaded holes in the car underframe 100, and the bolts can be locked and assembled with the second assembling holes 43 and the preset threaded holes in the upper car underframe 90. In addition, the first assembly holes 16 and the second assembly holes 43 can be designed to directly replace the original car platform rubber blocks, and can be applied to the upper car platform 90 and the car platform frame 100 with most structural forms, so that the application capability is strong.
It is understood that the first and second fitting holes 16 and 43 are through holes.
With reference to fig. 2 and fig. 3, in addition, the low frequency vibration isolation device 200 further includes a backing plate 60, and the backing plate 60 abuts between the mounting seat 10 and the elastic pressing element 20. Through setting up backing plate 60, when fastening connection spare 50 formed not equidimension fastening force, can finely tune the rigidity coefficient of low frequency vibration isolation device 200, realize that the total rigidity of device is close to zero more, and then make low frequency vibration isolation device 200 possess the characteristic of high static rigidity low dynamic stiffness, effectively reduce the low frequency vibration of elevator vertical direction when guaranteeing that the elevator operation is stable.
In one embodiment, the mounting seat 10 is provided with a first central hole, the elastic pressing element 20 is provided with a second central hole aligned with the first central hole, the rigid pressing element 30 is provided with a third central hole aligned with the second central hole, the connecting plate 40 is provided with a fourth central hole aligned with the third central hole, the backing plate 60 is provided with a fifth central hole aligned with the fourth central hole, and the fastening connector 50 is inserted into and fixed in the first central hole, the second central hole, the third central hole, the fourth central hole and the fifth central hole. Specifically, the fastening and connecting piece 50 is a long bolt, the fastening and connecting piece 50 passes through each center hole and then is locked with a nut, and then each component such as the connecting plate 40 and the mounting seat 10 can be locked, assembled and fixed, and the fastening and connecting piece 50 passes through the center part of each component, so the prepressing deformation of each component is more uniform, the produced prepressing amount is more accurate, and the structure of the low-frequency vibration isolation device is more stable when the low-frequency vibration isolation device is pressed down by a car.
With reference to fig. 2 and fig. 3, in the present embodiment, the mounting base 10 includes a substrate 11, and a first support plate 12 and a second support plate 13 that are protruded from the same side of the substrate 11 at intervals, the rigid pressing member 30 includes a receiving plate 31, and a first fixing plate 32 and a second fixing plate 33 that are connected to two opposite ends of the receiving plate 31, and both the first fixing plate 32 and the second fixing plate 33 are disposed at an angle to the receiving plate 31 and both inclined downward toward the substrate 11; the first fixing plate 32 is connected to the first leg plate 12, the second fixing plate 33 is connected to the second leg plate 13, the elastic pressing member 20 is abutted between the receiving plate 31 and the base plate 11, and the connecting plate 40 is pressed against the receiving plate 31. By connecting the first support plate 12 with the first fixing plate 32 and connecting the second support plate 13 with the second fixing plate 33, the rigid pressing member 30 can be effectively assembled and fixed with the mounting seat 10. And at this moment, the rigid pressing part 30 is of an upward convex structure facing one side of the car, has stronger elastic deformation capacity, and is easier to deform to generate a pre-pressing amount when being locked by the fastening connecting part 50, so that low-frequency vibration transmitted by the upper car is better counteracted.
Preferably, in this embodiment, the first fixing plate 32, the receiving plate 31, and the second fixing plate 33 are integrally formed by bending rectangular alloy spring steel plates, and form a symmetrical trapezoid structure. The rectangular steel plate is more suitable for the use environment of the elevator car bottom, is made of an alloy spring steel plate (for example, 65Mn), has more excellent elastic deformation capacity and negative stiffness characteristic, and can be matched with the elastic pressing piece 20 with positive stiffness characteristic to realize that the total stiffness is approximately 0.
Alternatively, the elastic pressing member 20 in the present solution may be, but is not limited to, a rubber block, a coil spring, and the like.
The inclination angles of the first fixing plate 32 and the second fixing plate 33 with respect to the receiving plate 31 may be obtained by a bending method according to actual needs, and are not particularly limited herein.
With reference to fig. 2, further, the first supporting plate 12 is provided with a first slot 121, the second supporting plate 13 is provided with a second slot 131 opposite to the first slot 121, the first fixing plate 32 is inserted into the first slot 121, and the second fixing plate 33 is inserted into the second slot 131. Therefore, the first fixing plate 32 is inserted into the first slot 121 and is restrained and clamped by the slot wall of the first slot 121, so that the first fixing plate is not easy to loosen from the first support plate 12, and the second fixing plate 33 is inserted into the second slot 131 and is restrained and clamped by the slot wall of the second slot 131, so that the second fixing plate is not easy to loosen from the second support plate 13, thereby ensuring that the rigid pressing member 30 and the mounting seat 10 are assembled more strongly and more stably.
Furthermore, the mounting seat 10 further includes a first locking member 14 and a second locking member 15, the first support plate 12 defines a first mounting through hole communicated with the first slot 121, the second support plate 13 defines a second mounting through hole connected with the second slot 131, the first locking member 14 is inserted into the first mounting through hole and tightly connected with the first fixing plate 32, and the second locking member 15 is inserted into the second mounting through hole and tightly connected with the second fixing plate 33. Thus, the first locking member 14 can further compress the first retaining plate 32, and the second locking member 15 can further compress the second retaining plate 33, thereby preventing the first retaining plate 32 from loosening from the first bracket 12 and the second retaining plate 33 from loosening from the second bracket 13.
Alternatively, the first locking member 14 and the second locking member 15 are both screws, the first mounting through hole and the second mounting through hole are both screw holes, the screws are screwed into the screw holes,
preferably, in an embodiment, the first locking member 14 and the second locking member 15 are fastening bolts, and the first mounting through hole and the second mounting through hole are threaded holes, and the fastening bolts are screwed into the threaded holes and press the first fixing plate 32 and the second fixing plate 33. The purpose of compressing each fixed plate or releasing each fixed plate can be realized through the rotating mode, the simple operation, laborsaving, simple structure, easy to carry out.
Of course, it should be noted that, in order to ensure that the rigid pressing member 30 is firmly and reliably assembled with the mounting seat 10, in other embodiments, other mounting structures in the prior art may be adopted instead of the above-mentioned slot insertion and screw pressing manner, such as snap connection, riveting, welding, hooping, and the like, and are also within the protection scope of the present application.
Referring to fig. 2, since the low frequency vibration isolation device 200 of the present embodiment mainly aims to reduce or eliminate the low frequency vibration generated when the upper car is pressed down, when the car is pressed against the device, the rigid pressing member 30 and the elastic pressing member 20 will further undergo compression deformation, and the connecting plate 40 will move close to the mounting seat 10. In order to avoid collision interference between the connecting plate 40 and the first and second brackets 12 and 13, in a further embodiment of the present application, the connecting plate 40 includes a bottom plate 41 and a protrusion 42 disposed on the bottom plate 41, the protrusion 42 is in compression joint with the receiving plate 31, the protrusion 42 is matched with the bottom plate 41 to form a first clearance portion 70 and a second clearance portion 80, the first clearance portion 70 is in clearance fit with the first bracket 12, and the second clearance portion 80 is in clearance fit with the second bracket 13. The provision of the projections 42 enables the base plate 41 to be spaced from the first and second legs 12, 13; the formed space becomes the first and second escape portions 70 and 80, and provides a certain movement forming margin of the connection plate 40, thereby preventing the above problem from occurring.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A low frequency vibration isolation device, comprising:
the mounting seat is used for being assembled and connected with the car underframe;
the elastic pressing piece is arranged on the mounting seat;
the rigid pressing piece is arranged on the elastic pressing piece;
the connecting plate is arranged on the rigid pressing piece and is used for being assembled and connected with the upper car bottom; and
and the fastening connecting piece is used for assembling and connecting the mounting seat, the elastic pressing piece, the rigid pressing piece and the connecting plate and enabling the elastic pressing piece and the rigid pressing piece to generate pre-pressing amount.
2. The low frequency vibration isolation device according to claim 1, wherein the mounting seat defines a first central hole, the elastic pressing member defines a second central hole aligned with the first central hole, the rigid pressing member defines a third central hole aligned with the second central hole, the connecting plate defines a fourth central hole aligned with the third central hole, and the fastening connector is fixed in the first central hole, the second central hole, the third central hole and the fourth central hole.
3. The low frequency vibration isolation device according to claim 1, wherein the mounting seat comprises a base plate and a first support plate and a second support plate protruding from the same side of the base plate at intervals, the rigid pressing member comprises a receiving plate and a first fixing plate and a second fixing plate connected to opposite ends of the receiving plate, and the first fixing plate and the second fixing plate are both disposed at an angle to the receiving plate and are both disposed obliquely downward toward the base plate; the first fixing plate is connected with the first supporting plate, the second fixing plate is connected with the second supporting plate, the elastic pressing piece abuts against the space between the bearing plate and the base plate, and the connecting plate is in compression joint with the bearing plate.
4. The low frequency vibration isolation device according to claim 3, wherein the first fixing plate, the receiving plate and the second fixing plate are integrally formed by bending rectangular alloy spring steel plates, and form a symmetrical trapezoid structure.
5. The low frequency vibration isolation device according to claim 3, wherein the first supporting plate defines a first slot, the second supporting plate defines a second slot opposite to the first slot, the first fixing plate is inserted into the first slot, and the second fixing plate is inserted into the second slot.
6. The low frequency vibration isolation device according to claim 5, wherein the mounting base further comprises a first locking member and a second locking member, the first supporting plate defines a first mounting through hole communicating with the first slot, the second supporting plate defines a second mounting through hole connecting with the second slot, the first locking member is inserted into the first mounting through hole and fastened to the first fixing plate, and the second locking member is inserted into the second mounting through hole and fastened to the second fixing plate.
7. The low frequency vibration isolation device according to claim 6, wherein the first locking member and the second locking member are fastening bolts, the first mounting through hole and the second mounting through hole are threaded holes, and the fastening bolts are screwed into the threaded holes and press the first fixing plate and the second fixing plate.
8. The low frequency vibration isolation device according to claim 3, wherein the connecting plate includes a bottom plate and a protrusion disposed on the bottom plate, the protrusion is in pressure contact with the receiving plate, the protrusion and the bottom plate cooperate to form a first clearance portion and a second clearance portion, the first clearance portion cooperates with the first support plate, and the second clearance portion cooperates with the second support plate.
9. The low frequency vibration isolation device according to any one of claims 1 to 8, further comprising a pad plate abutting between the mount base and the elastic pressing member.
10. The low frequency vibration isolation device according to claim 9, wherein the mounting seat is provided with a first fitting portion for assembly of the platform, and the connecting plate is provided with a second fitting portion for assembly of the upper platform.
11. The low frequency vibration isolation device according to claim 10, wherein the first fitting portion is a first fitting hole, and the second fitting portion is a second fitting hole.
12. An elevator characterized by comprising the low frequency vibration isolation device according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397263.XA CN110980483B (en) | 2019-12-30 | 2019-12-30 | Low-frequency vibration isolation device and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397263.XA CN110980483B (en) | 2019-12-30 | 2019-12-30 | Low-frequency vibration isolation device and elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110980483A true CN110980483A (en) | 2020-04-10 |
| CN110980483B CN110980483B (en) | 2021-06-08 |
Family
ID=70078984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911397263.XA Active CN110980483B (en) | 2019-12-30 | 2019-12-30 | Low-frequency vibration isolation device and elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110980483B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321259A (en) * | 2021-11-19 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | Anti-impact energy-locking vibration isolation device based on chiral structure |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137845A (en) * | 1976-05-11 | 1977-11-17 | Mitsubishi Electric Corp | Control device for ac elevator |
| JPH10152273A (en) * | 1996-11-25 | 1998-06-09 | Mitsubishi Electric Corp | Elevator vibration control device |
| CN2820793Y (en) * | 2005-06-27 | 2006-09-27 | 广州日立电梯有限公司 | Shock-proof and reducing structure for electric lift main machine |
| CN101891094A (en) * | 2010-06-25 | 2010-11-24 | 宁波华夏一品电梯有限公司 | Elastic variable vibration-isolating device for elevator car |
| CN204150863U (en) * | 2014-10-08 | 2015-02-11 | 日立电梯（中国）有限公司 | A kind of elevator vibration isolation guide piece |
| CN104444699A (en) * | 2014-12-24 | 2015-03-25 | 布劳恩电梯有限公司 | Car platform damping mechanism and lift car with same |
| CN105065564A (en) * | 2015-08-03 | 2015-11-18 | 菱王电梯股份有限公司 | Lift car vibration damping structure of high-speed heavy freight elevator |
| CN106081786A (en) * | 2016-08-31 | 2016-11-09 | 苏州杰富电梯有限公司 | Elevator car bottom vibration absorber and elevator |
| CN106870615A (en) * | 2017-04-21 | 2017-06-20 | 吉林大学 | A kind of dish type non-linear low frequency vibration isolator based on positive and negative Stiffness principle |
| CN108302155A (en) * | 2017-12-08 | 2018-07-20 | 沈阳远大装备科技有限公司 | Group's tune method of quasi- zero stiffness isolation mounting and the isolation mounting and system |
| CN110190778A (en) * | 2019-06-05 | 2019-08-30 | 北京市劳动保护科学研究所 | A kind of low frequency vibration isolation and piezoelectric energy-capturing coupling device |
-
2019
- 2019-12-30 CN CN201911397263.XA patent/CN110980483B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137845A (en) * | 1976-05-11 | 1977-11-17 | Mitsubishi Electric Corp | Control device for ac elevator |
| JPH10152273A (en) * | 1996-11-25 | 1998-06-09 | Mitsubishi Electric Corp | Elevator vibration control device |
| CN2820793Y (en) * | 2005-06-27 | 2006-09-27 | 广州日立电梯有限公司 | Shock-proof and reducing structure for electric lift main machine |
| CN101891094A (en) * | 2010-06-25 | 2010-11-24 | 宁波华夏一品电梯有限公司 | Elastic variable vibration-isolating device for elevator car |
| CN204150863U (en) * | 2014-10-08 | 2015-02-11 | 日立电梯（中国）有限公司 | A kind of elevator vibration isolation guide piece |
| CN104444699A (en) * | 2014-12-24 | 2015-03-25 | 布劳恩电梯有限公司 | Car platform damping mechanism and lift car with same |
| CN105065564A (en) * | 2015-08-03 | 2015-11-18 | 菱王电梯股份有限公司 | Lift car vibration damping structure of high-speed heavy freight elevator |
| CN106081786A (en) * | 2016-08-31 | 2016-11-09 | 苏州杰富电梯有限公司 | Elevator car bottom vibration absorber and elevator |
| CN106870615A (en) * | 2017-04-21 | 2017-06-20 | 吉林大学 | A kind of dish type non-linear low frequency vibration isolator based on positive and negative Stiffness principle |
| CN108302155A (en) * | 2017-12-08 | 2018-07-20 | 沈阳远大装备科技有限公司 | Group's tune method of quasi- zero stiffness isolation mounting and the isolation mounting and system |
| CN110190778A (en) * | 2019-06-05 | 2019-08-30 | 北京市劳动保护科学研究所 | A kind of low frequency vibration isolation and piezoelectric energy-capturing coupling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321259A (en) * | 2021-11-19 | 2022-04-12 | 中国船舶重工集团公司第七一九研究所 | Anti-impact energy-locking vibration isolation device based on chiral structure |
| CN114321259B (en) * | 2021-11-19 | 2023-12-08 | 中国船舶重工集团公司第七一九研究所 | Anti-impact energy-locking vibration isolation device based on chiral structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110980483B (en) | 2021-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110925345B (en) | Vibration isolator | |
| CN110980483B (en) | Low-frequency vibration isolation device and elevator | |
| US9650228B2 (en) | Roller guide and manufacturing method for same | |
| CA2327184A1 (en) | X-configuration engine mounting | |
| CN109094595B (en) | Railway wagon bogie vibration damping device capable of providing composite vibration damping force | |
| US20070164492A1 (en) | Vibration mounting | |
| CN115594053B (en) | Self-adaptive vibration absorber for traction machine | |
| CN206690819U (en) | A kind of back suspension device | |
| CN212959628U (en) | Variable cross-section plate spring assembly for passenger car | |
| CN209654515U (en) | A kind of vibration absorber and the fastener comprising it | |
| EP4368854A1 (en) | Circuit board damping mechanism and vehicle-mounted apparatus using same | |
| CN108454373B (en) | V-shaped suspension assembly structure | |
| CN218929119U (en) | Suspension device and vehicle with same | |
| GB2378229A (en) | A vibration damper for a motor vehicle body | |
| CN218261483U (en) | Adjustable elevator main machine vibration reduction combined structure | |
| JPS6346743Y2 (en) | ||
| CN113911158B (en) | Primary suspension spring for built-in axle box body bogie | |
| CN218235969U (en) | Electromechanical device vibration/noise reduction device | |
| CN219673168U (en) | Main pump damping device of concrete arm support pump truck | |
| JPH025138Y2 (en) | ||
| CN219903990U (en) | Thermal management device and vehicle | |
| US20240093434A1 (en) | Track rail fastening system and rail cushion for same | |
| CN116608238A (en) | Quasi-zero stiffness vibration isolator and design method thereof | |
| CN219954061U (en) | Horizontal adjustable zero-stiffness vibration isolator | |
| CN221027047U (en) | Main rail bracket of elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |