CN219101951U - Car top wheel vibration damper - Google Patents
Car top wheel vibration damper Download PDFInfo
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- CN219101951U CN219101951U CN202223521144.0U CN202223521144U CN219101951U CN 219101951 U CN219101951 U CN 219101951U CN 202223521144 U CN202223521144 U CN 202223521144U CN 219101951 U CN219101951 U CN 219101951U
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- 238000013016 damping Methods 0.000 claims abstract description 26
- 230000035939 shock Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000004308 accommodation Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a car top wheel vibration damper which is characterized in that a whole rope pulley assembly is fixed on a supporting plate positioned at the bottom of the rope pulley assembly, and the supporting plate is connected with an upper beam of a car frame through a vibration damper assembly; the damping assembly comprises a pull rod, the upper end of the pull rod penetrates through the upper beam of the car frame to be connected with the bearing plate, and the pull rod positioned on the lower side or the inner side of the upper beam of the car frame is provided with an independent variable damping body. The design of independent variable vibration damping body for the weight of car under different loads is absorbed near the point effectively in elevator operation in-process, keeps any point position of car all to be in a self-adjusting vibration damping state, makes the car operation more steady, and slows down the fatigue strength who tows driving system, increase of service life, improves and takes advantage of the ladder travelling comfort, accommodation is wide.
Description
Technical Field
The utility model relates to the elevator technology, in particular to a car top wheel vibration damper.
Background
The traction machine drives the steel wire rope to drive the elevator car to move, which is one of important factors of stable operation of the elevator car, and the connection mode between the diverting pulley and the elevator car in the prior art is single and basically simple soft connection. For example, the patent publication number is CN207973358U, and the disclosed elevator rope sheave assembly is characterized in that a safety nut and a safety nut pressure spring are arranged on the top surface of a rope sheave mounting frame, and the safety nut is positioned in the middle of the top surface of the rope sheave mounting frame; the top surface of the rope pulley mounting frame is also provided with a micro-switch bracket, and the micro-switch bracket is provided with a micro-switch matched with the safety nut; the rope sheave mounting bracket bottom surface is equipped with the initiative nut, and the initiative nut is located the safety nut directly under, and the device can be for the flexible coupling with wire rope's for the car connection to reduce vibrations and noise because of the installation error leads to. For another example, the patent publication number is CN203938312U, and the elevator car roof diverting pulley assembly comprises a diverting pulley, two long side plates, two first folding members, two second folding members and a damping cushion, wherein the diverting pulley is arranged in the middle of the upper parts of the two long side plates through a shaft, the first folding member is arranged on the outer side of the long side plates, and the second folding member is arranged in the middle of the two long side plates; the second folding piece is of an inverted U-shaped structure, the first folding piece is of an inverted L-shaped structure, the first folding piece and the second folding piece are identical in height and are arranged at the lower parts of the long side plates; the damping pad is arranged at the top end of the first folding piece and is fixed through a bolt; the upper beam is arranged on the shock pad and is fixed through bolts. A common disadvantage of these conventional sheave assemblies is that the shock pad is adjusted in place at one time during car installation and debugging, and these "stiff" structures are not adaptable to random variable loads because the car is operated under varying and varying loads. Therefore, the phenomena of instantaneous strong shock, vibration deflection, noise generated by rigid contact and the like are often accompanied in the weight change process of the elevator car, some problems are solved at present by adopting means of a deflection preventing device, a reinforced guide shoe, multidirectional limiting and the like, the manufacturing and maintenance cost is increased, the self weight of the elevator car is increased, accessories are complicated, and once the auxiliary parts are worn and misplaced, the whole restriction system is destroyed, so that the riding comfort is seriously affected.
Disclosure of Invention
The utility model aims to solve the problems and provide the car top wheel vibration damper which has the characteristics of automatically absorbing the weight inertia of a car under different loads, enabling the car to be always in a vibration damping state, stably running, being good in comfort, prolonging the service life of a car, being wide in application range and the like.
The technical problems of the utility model are mainly solved by the following technical proposal: a vibration damper for a car top wheel is characterized in that a whole rope wheel assembly is fixed on a supporting plate positioned at the bottom of the rope wheel assembly, and the supporting plate is connected with an upper beam of a car frame through a vibration damper assembly; the damping assembly comprises a pull rod, the upper end of the pull rod penetrates through the upper beam of the car frame to be connected with the bearing plate, and the pull rod positioned on the lower side or the inner side of the upper beam of the car frame is provided with an independent variable damping body.
In the car roof wheel vibration damper, preferably, the independent variable vibration damper is a combination of a rubber vibration damper attached to an upper beam of the car frame and a spring located below the rubber vibration damper.
In the foregoing car roof wheel vibration damper, preferably, the independent variable vibration damper, the rubber shock pad and the spring in the vibration damper assembly are all sleeved on the pull rod, and the rubber shock pad and the pull rod are in hole-shaft clearance fit.
In the car roof wheel vibration damping device, preferably, an adjusting nut is disposed below the spring on the pull rod, and a bolt, a snap ring or a cotter for limiting the axial freedom degree of the adjusting nut is disposed below the adjusting nut.
In the car roof wheel vibration damper, preferably, the rubber vibration damper has a stepped shaft or cone structure.
In the foregoing car roof wheel vibration damper, preferably, the car frame upper beam has a horizontal base plate, and the pull rod of the vibration damper assembly passes through the horizontal base plate and is connected with the support plate.
In the car top wheel vibration damper, preferably, the vibration damper is provided with a plurality of sleeves, and the plurality of sleeves of vibration damper are symmetrically arranged on the central line of the rope wheel assembly.
In the car top wheel vibration damper, preferably, the rope wheel assembly comprises a rope wheel positioned on a wheel shaft, and clamping plates are arranged at two ends of the wheel shaft; the bearing plate is U-shaped, two sides of the bearing plate are respectively connected with clamping plates at two ends of the wheel shaft, and the vibration reduction assembly is positioned at the U-shaped bottom plate part of the bearing plate.
In the foregoing car top wheel vibration damping device, preferably, the rope sheave assembly includes a wheel shaft for positioning the rope sheave, two ends of the wheel shaft are provided with clamping plates connected with the bearing plates, clamping plates are arranged on the clamping plates, chord-type clamping grooves are formed in the matching positions of the wheel shaft and the clamping plates, and the clamping grooves are matched with the clamping plates.
According to the technical scheme, working characteristics of the elevator car top wheel of the elevator car connecting part are studied aiming at the traction machine, the rope wheel assembly is used as a whole, and the rope wheel assembly is connected with the elevator car through a group of vibration reduction assemblies with enough traction tension, so that a buffer connection relation adapting to continuously variable loads is formed between the elevator car and the steel wire rope, and the buffer body is completed by the independent variable vibration reduction body. Therefore, noise generated by hard connection between the traction power system and the car is avoided, and when the car runs up and down under different loads, impact caused by different load weights of the car can be absorbed through elastic deformation of the independent variable vibration damper, the car is kept in a vibration damping state all the time, and the car is guaranteed to run more stably. Meanwhile, the device can slow down the fatigue strength of a traction power system and improve riding comfort.
Further, at the moment of starting or stopping the car, the device can effectively solve the shock feeling caused by hard connection, and the independent variable vibration damper automatically adjusts the compression amount of the elastic body according to the actual stress condition in the acceleration or deceleration state of the car, so that noise is eliminated, and dynamic physical quantities such as inertia and the like of each running point of the car are improved.
In the device, the independent variable vibration damper is composed of two completely different elastic bodies, preferably a rubber vibration damper which is tightly attached to the upper beam of the car frame and a spring below the rubber vibration damper, and the shape, the elastic coefficient and other factors of the two elastic bodies are set according to the elevator model, so that the device is suitable for the needs of various vertical elevators.
Compared with the prior art, the utility model has the beneficial effects that: the design of independent variable vibration damping body for the weight inertia of car under different loads is absorbed near the point effectively in elevator operation in-process, keeps the car any point position all to be in a vibration damping state of adjusting by oneself, makes the car operation more steady, and slows down the fatigue strength who tows driving system, increase of service life, improves and takes advantage of the ladder travelling comfort, accommodation is wide.
Drawings
Fig. 1 is a schematic view of a structure of the present utility model.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a partially enlarged schematic view of the structure at M in fig. 2.
FIG. 4 is a schematic structural view of an embodiment of a vibration damping assembly of the present utility model.
Fig. 5 is a schematic view of a fastening structure of an axle clamping plate according to the present utility model.
FIG. 6 is a schematic view of a rubber cushion embodiment of the present utility model.
FIG. 7 is a schematic view showing the structure of an embodiment of a trapezoidal rubber shock pad according to the present utility model.
FIG. 8 is a schematic structural view of an embodiment of a screw-shaped rubber cushion according to the present utility model.
In the figure: 1. wire rope, upper shield, clamping plate, wheel axle, clamping plate, rope wheel, supporting plate, vibration reducing assembly, pull rod, rubber vibration reducing pad, spring pressing plate, adjusting nut, cotter pin, side shield and car frame upper beam.
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.
In the car top wheel vibration damper according to the embodiment, as shown in fig. 1 and 2, the whole rope wheel assembly is fixed on a supporting plate 7 positioned at the bottom of the rope wheel assembly, and the following steps are adopted: the term "whole sheave assembly" in this embodiment refers to an assembly of individual sheaves, not all sheaves at the top of the car. The bearing plate 7 is connected with the upper beam 10 of the car frame through 6 sets of vibration reduction assemblies 8, and the 6 sets of vibration reduction assemblies 8 are symmetrically arranged on the central line of the rope pulley assembly. The car frame upper beam 10 is provided with a horizontal base plate, and the damping assembly 8 is connected with the bearing plate 7 through the horizontal base plate.
The rope pulley assembly comprises a rope pulley 6 positioned on a wheel shaft 4, a steel wire rope 1 passes through the rope pulley to be connected with a traction machine, and clamping plates 3 are arranged at two ends of the wheel shaft 4. The bearing plate 7 is U-shaped, and two sides of the bearing plate 7 are respectively connected and fixed with the clamping plates 3 at two ends of the wheel axle 4. And the clamping plate 3 is provided with the clamping plate 5, and the matching part of the wheel shaft 4 and the clamping plate 3 is provided with a chord cutting clamping groove, as shown in fig. 5, the clamping groove is matched with the clamping plate 5, so that the wheel shaft 4 is kept static in the running process of the rope pulley 6, and the safety of the rope pulley is ensured. The vibration damping assembly 8 is positioned at the bottom plate portion of the U-shape of the support plate 7. The top of the rope wheel assembly is provided with an upper shield 2, and two sides of the rope wheel assembly, which are positioned on the steel wire rope 1, are respectively provided with a side shield 9.
The vibration damping assembly 8 is shown in fig. 4 and comprises a pull rod 801, wherein the upper end of the pull rod 801 passes through the upper beam 10 of the car frame and is connected with the bearing plate 7, and as shown in fig. 3, an independent variable vibration damping body is arranged on the pull rod 801 positioned at the lower side or the inner side of the upper beam 10 of the car frame.
Specifically, the independent variable vibration damper is a rubber damper 802 closely attached to the upper beam of the car frame, and a spring 803 under the rubber damper 802, and spring plates 804 are provided at both ends of the spring 803. The independent variable vibration damper is provided with a manual amplitude adjusting mechanism, and the manual amplitude adjusting mechanism comprises an adjusting nut 805 positioned at the lower end of the spring 803, and a bolt, a snap ring or a cotter pin 806 positioned below the adjusting nut 805 for limiting the axial freedom degree of the adjusting nut 805.
Further, the independent variable vibration damper in the vibration damper assembly 8, the rubber vibration damper 802 and the spring 803 are sleeved on the pull rod 801, and the pull rod 801 is used for positioning the independent variable vibration damper, wherein the rubber vibration damper 802 and the pull rod 801 are in hole-shaft clearance fit.
One example of a rubber cushion 802 structure: the profile is a stepped shaft as shown in fig. 6.
A second embodiment of the rubber cushion 802 structure: the appearance is a cone structure, as shown in figure 7.
A third embodiment of the rubber cushion 802 structure: the shape of which is a spiral structure as shown in fig. 8.
When in operation (principle): because the independent variable vibration damping body is connected between the lift car and the near-point rope pulley, the elastic quantity of the independent variable vibration damping body is inversely proportional to the load capacity of the lift car, and the independent variable vibration damping body can react in real time according to the continuous change of the load of the lift car, and the whole process of starting, stopping, accelerating and the like can be carried out, the noise generated by hard connection between the traditional lift car and the rope pulley is thoroughly solved, meanwhile, the independent variable vibration damping body automatically absorbs the inertia quantity generated by different load weights of the lift car, and the lift car is kept in a vibration damping protection state, so that the lift car can run more stably.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modified structure of the present utility model, such as the spring 803 being a conical spring, is within the scope of the present utility model.
Claims (9)
1. A vibration damper for a car top wheel is characterized in that a whole rope wheel assembly is fixed on a supporting plate (7) positioned at the bottom of the rope wheel assembly, and the supporting plate is connected with a car frame upper beam (10) through a vibration damper assembly (8); the damping assembly comprises a pull rod (801), the upper end of the pull rod penetrates through the upper beam of the car frame to be connected with the bearing plate, and the pull rod positioned on the lower side or the inner side of the upper beam of the car frame is provided with an independent variable damping body.
2. The roof wheel vibration damper according to claim 1, wherein the independent variable vibration damper is a combination of a rubber damper (802) closely attached to the upper beam (10) of the car frame, and a spring (803) located below the rubber damper.
3. The car roof wheel vibration damper according to claim 2, wherein the independent variable vibration damper in the vibration damper assembly (8), the rubber vibration damper (802) and the spring (803) are all sleeved on the pull rod (801), and the rubber vibration damper and the pull rod are in hole-shaft clearance fit.
4. A car roof wheel vibration damper according to claim 2 or 3, characterized in that on the pull rod (801) there is provided an adjusting nut below the spring (803), below which there is provided a pin or snap ring or cotter (806) defining the axial degree of freedom of the adjusting nut.
5. A car roof wheel vibration damper according to claim 2 or 3, wherein the rubber shock pad (802) has a stepped shaft or cone configuration in shape.
6. A car roof wheel vibration damper according to claim 1, characterized in that the car frame upper beam (10) has a horizontal base plate through which the tie rod (801) of the vibration damper assembly (8) is connected to the support plate.
7. The car top wheel vibration damper according to claim 1, characterized in that the vibration damper assembly (8) is provided with several sets of vibration damper assemblies symmetrically arranged about the center line of the sheave assembly.
8. A car roof wheel vibration damper according to claim 1, characterized in that the sheave assembly comprises sheaves (6) positioned on an axle (4) provided with clamping plates (3) at both ends; the bearing plate (7) is U-shaped, two sides of the bearing plate are respectively connected with clamping plates at two ends of the wheel axle, and the vibration reduction assembly (8) is positioned at the U-shaped bottom plate part of the bearing plate (7).
9. The car top wheel vibration damper according to claim 1 or 8, characterized in that the rope wheel assembly comprises an axle (4) for positioning the rope wheel (6), clamping plates (3) connected with the bearing plates (7) are arranged at two ends of the axle, clamping plates (5) are arranged on the clamping plates, chord-type clamping grooves are arranged at the matching parts of the axle and the clamping plates, and the clamping grooves are matched with the clamping plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223521144.0U CN219101951U (en) | 2022-12-28 | 2022-12-28 | Car top wheel vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223521144.0U CN219101951U (en) | 2022-12-28 | 2022-12-28 | Car top wheel vibration damper |
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| Publication Number | Publication Date |
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| CN219101951U true CN219101951U (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223521144.0U Active CN219101951U (en) | 2022-12-28 | 2022-12-28 | Car top wheel vibration damper |
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| CN (1) | CN219101951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044956A (en) * | 2022-12-28 | 2023-05-02 | 杭州新马电梯有限公司 | Car top wheel independent variable vibration damping system |
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2022
- 2022-12-28 CN CN202223521144.0U patent/CN219101951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044956A (en) * | 2022-12-28 | 2023-05-02 | 杭州新马电梯有限公司 | Car top wheel independent variable vibration damping system |
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