CN1189446A - Dynamic damper for chain-driven apparatus - Google Patents
Dynamic damper for chain-driven apparatus Download PDFInfo
- Publication number
- CN1189446A CN1189446A CN97126219A CN97126219A CN1189446A CN 1189446 A CN1189446 A CN 1189446A CN 97126219 A CN97126219 A CN 97126219A CN 97126219 A CN97126219 A CN 97126219A CN 1189446 A CN1189446 A CN 1189446A
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- dynamic damper
- bearing plate
- stay bearing
- actuator
- vibration
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Abstract
Dynamic damper for chain-driven apparatus can prevent the libration which is transferred to the escalator casing or analog. The dynamic damper comprises a clump with a preset mass, a plurality of supporters, each connects to the lower surface of the clump and has a preset cross section, a supporting plate connecting to the lower terminal of respective supporter and forming a plurality of connecting holes thereon; a tray connecting to the lower surface of respective supporting plate and forming a plurality of connecting holes thereon; a connecting member connecting to the supporting plate, tray and drive member, which forms connecting hole of the supporting plate, tray and drive member by insertion.
Description
The present invention relates to a kind of dynamic damper that is used for chain drive mechanism, a kind of specifically improved dynamic damper that is used for chain drive mechanism, it can prevent to be passed to the vibration of escalator frame or analogue, this vibration is created in for example escalator motor, the drive performance process of this class driver element of gear case and retarder.
As Figure 1-3, conventional conveyor belt type escalator comprises a step unit 2 of standing along 1, one passenger of handrail track of projected route running, is used to drive the removable unit 10 of handrail track 1 and step unit 2,9,13 and 14 and be used to drive removable unit 10,9,13, with 14 driver element 7,8,12 and 13.In addition, also be provided for the transmission of drive force branch and be clipped to driver element 7,8,12 and 3 machine assembly 4,5 and 6.
At this moment, terminal rail 3 has in a foreign steamer 3a and one and takes turns 3b.
With reference now to the running of the accompanying drawing of following, make an explanation to conventional conveyor-type escalator.
The propulsive effort that is produced by the motor 4 of machine assembly 4,5 and 6 is passed to and motor 4 bonded assembly retarders 5, the propulsive effort that the sprocket wheel (not shown) that driving chain 6 accepts to link to each other with retarder 5 produces in the drive performance process, like this, driving drive sprocket 7.
At this moment and a part of ingear step preliminary roller 13 of step 9 move along upper rail 15, and and behind another part ingear step of step 9 roller 14 move along lower guideway 16.Afterwards, when roller 14 behind step preliminary roller 13 and the step arrived the top of escalator and lower part respectively, roller 14 was respectively along the foreign steamer 3a of terminal rail 3 with interiorly take turns the 3b rotation behind the step.
In above-mentioned conventional escalator, because driver element 7,12 and 3, promptly drive sprocket 7, and the vibration of axle drive shaft 12 and terminal rail 3 produces very big noise.
When the transfer of vibration that produce by driver element 7,12 and 3 during to escalator frame vibration be increased the bigger noise of generation thus.
In order to reduce above-mentioned vibration, conventional dynamic damper comprises a vibration-proof rubber (vibration-proof mounting), and it is positioned in motor 4, and retarder 5 is in the sprocket roller box (not shown) etc.
As shown in Figure 4, for vibrationproof, the dynamic damper that is used for the routine of escalator comprises a monolithic devices rubber mount 21, and it is placed in by the stay bearing plate 20 of metallic material manufacturing and has between the block 22 of predetermined weight.
Stay bearing plate 20, strut member 21 and block 22 are used welding method, and adhesive method or bolted connection method connect so that they can not thrown off owing to transmitting the vibration that comes mutually.
Because stay bearing plate 20 is connected in the top of vibrative actuator (not shown), the vibration that is produced by actuator is delivered to block 22 by strut member 21.
Yet, in the dynamic damper of routine, because stay bearing plate 20 is directly connected in the upper surface of actuator (not shown), and is not used in the medium of transmitting vibrations to a part between stay bearing plate 20 and actuator (not shown), the transmitting vibrations because structure problem just can not make progress fully.
In addition, owing to the strut member 21 and they that are inserted between stay bearing plate 20 and block 22 are integrally formed, by the vibration of block 22 generations, what promptly therefore produce makes progress, downwards, left and vibration to the right can back transfer to the actuator (not shown), increased vibration like this.
In addition, shown in Fig. 7 curve A, when actuating speed (longitudinal axis) when being increased, vibration is with preset frequency, and for example 20HZ increases rapidly, and shown in curve B, obtains this curve when the monolithic devices vibration-proof rubber is mixed, and vibration problem is prevented slightly.Yet because vibrate with set frequency, for example 20HZ is increased, and just can not prevent vibration effectively.
Therefore an object of the present invention is to provide a kind of dynamic damper that is used for chain drive mechanism, it has overcome the aforesaid problem that runs in background technology.
Another object of the present invention provides a kind of dynamic damper that is used for chain drive mechanism, can prevent to be passed to the vibration of escalator frame or analogue, this vibration is created in for example escalator motor, the drive performance process of this class driver element of gear case and retarder.
In order to achieve the above object, the dynamic damper that is used for chain drive mechanism is provided, it includes the block of predetermined quality (mass), some strut members each and block lower surface engages and predetermined transversal surface is arranged, stay bearing plate engages with each strut member end portion and has some conjugate foramens to form thereon, the lower surface engages of carriage and stay bearing plate and have some conjugate foramens to form thereon, with be formed on stay bearing plate by insertion, carriage, conjugate foramen on the actuator and be used to engage stay bearing plate, carriage, the fastener of actuator.
Other advantages of the present invention, purpose and characteristic will be more obvious from following description.
The present invention is understood more fully from detailed description given below and the accompanying drawing that only provides in graphic mode, and this is not limitation of the present invention, wherein:
Fig. 1 represents the semi-sictional view transparent view of the interior and external structure of prior art conveyor belt type escalator;
Fig. 2 represents the schematic side elevation of the step driving condition of prior art conveyor belt type escalator;
Fig. 3 represents to be placed in the terminal rail lateral plan of a prior art conveyor belt type escalator on the guide rail;
Fig. 4 represents to be used for the transparent view of the prior art dynamic damper structure of conveyor belt type escalator;
Fig. 5 represents the transparent view according to the dynamic damper structure of chain drive mechanism of the present invention;
Fig. 6 represents the front elevation according to the dynamic damper installing condition of chain drive mechanism of the present invention;
Fig. 7 represents corresponding to according to the actuating speed of the weakening effect of dynamic damper of the present invention and prior art dynamic damper and the diagram of curves of the interrelation between the frequency.
With reference now to accompanying drawing, the dynamic damper that is used for chain drive mechanism according to the present invention is made an explanation.
As illustrated in Figures 5 and 6, some rubber mount spares of being separated by 60 and the lower surface engages that the block 70 of predetermined quality is arranged that can transmit the vibration that produces by actuator 90, the metal profile 50 that links to each other with the end parts of strut member 60 be useful on hold attaching parts 100 be formed on each arm of angle along some conjugate foramen 50a partly.
By predetermined method, for example, welding method, adhering method, or bolted connection method, block 70, strut member 60 and stay bearing plate 50 engage one another, so that they can not thrown off owing to transmitting the vibration that comes.
A carriage 80, it has the conjugate foramen (not shown) that is formed on each arm of angle edge to be used for and the conjugate foramen 50a that is formed on the stay bearing plate 50 engages the lower surface that it is connected to the lower surface of stay bearing plate 50 and is useful on the reservation shape of the upper surface that is installed in actuator 90.
In addition, as shown in Figure 6, actuator 90 is connected in the lower surface of carriage 80, and by its conjugate foramen (not shown) of attaching parts 100 be formed on stay bearing plate 50 on conjugate foramen 50a and the conjugate foramen (not shown) of carriage 80 be connected.
The cross-sectional plane of each strut member 60 is preferably circular, and is square or leg-of-mutton.In addition, carriage 80 is made by flexible material.
At the dynamic damper that is used for chain drive mechanism according to the present invention, actuator 90, carriage 80 is connected by attaching parts 100 with stay bearing plate 50, so that the vibration that actuator 90 produces is passed to top, weakens vibration like this.In addition, the strut member 60 that is installed in stay bearing plate 50 upper surfaces can reduce the vibration up and down that the passenger on escalator can responsive feel, and forward, and backward, left and irrelevant to the vibration of right, so that vibration is not passed to actuator 90.
In addition, the lower surface of carriage 80 is shaped to the upper surface that it is positioned in actuator 90.Thereby, use attaching parts 100 can easily connect actuator 90, carriage 80 and stay bearing plate 50.
In the present invention, weight is with measured with the relevant oscillation frequency of actuator 90, and this value is inserted into following equation then.
Resonance frequency=(strut member intensity/block quality)
1/2
That is, if the natural frequency of dynamic damper be identical with actuator 90 and frequency coupled vibration, the block 70 that is installed on the strut member 60 is represented actuator 90 vibrations, has so just greatly reduced vibration.
Shown in curve C among Fig. 7, vibration reduces with preset frequency (relevant oscillation frequency), and vibration also reduces with different frequency.
As mentioned above, because the dynamic damper according to chain drive mechanism of the present invention passes through carriage, stay bearing plate and attaching parts are connected in the top of actuator, weight by measuring actuator be vibrated so that may reduce in desired not further vibrative direction with arranging device and design apparatus are easy with relevant oscillation frequency.
Though preferred embodiment of the present invention is disclosed for the purpose of explaining, the person skilled in art knows that the notion of the present invention and the spirit that do not break away from claim narration can carry out various changes, and supplementary sum is replaced.
Claims (4)
1. dynamic damper that is used for chain drive mechanism, this chain drive mechanism comprises a motor, a retarder and some conjugate foramens that is formed on its upper surface, this dynamic damper comprises:
The block that a predetermined quality is arranged;
The plurality of elastic strut member, each and block lower surface engages are used for flexibly supporting block and are separated by mutually, form a predetermined distance like this between adjacent strut members;
A stay bearing plate is connected in the end portion of each strut member and is formed with some conjugate foramens thereon;
A carriage is connected in the lower surface of stay bearing plate and is formed with some conjugate foramens thereon; With
Be formed on stay bearing plate by being inserted into, the conjugate foramen of carriage and actuator and and stay bearing plate, the fastener that carriage and actuator engage.
2. it is corresponding with the upper surface of actuator that device as claimed in claim 1, wherein said carriage comprise that the lower surface of a reservation shape is used for.
3. device as claimed in claim 1, wherein said strut member comprise a circular cross section.
4. device as claimed in claim 1, wherein said strut member comprises the cross-sectional plane of a polygonal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97126219A CN1189446A (en) | 1996-11-29 | 1997-11-29 | Dynamic damper for chain-driven apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR59274/96 | 1996-11-29 | ||
| CN97126219A CN1189446A (en) | 1996-11-29 | 1997-11-29 | Dynamic damper for chain-driven apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1189446A true CN1189446A (en) | 1998-08-05 |
Family
ID=5177599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97126219A Pending CN1189446A (en) | 1996-11-29 | 1997-11-29 | Dynamic damper for chain-driven apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189446A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341877C (en) * | 2005-12-08 | 2007-10-10 | 侯金荣 | Method for extracting artemisinin |
| CN100494034C (en) * | 2005-03-08 | 2009-06-03 | 因温特奥股份公司 | Support of equipment for conveying persons and vibration separation method for the converying equipment |
-
1997
- 1997-11-29 CN CN97126219A patent/CN1189446A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100494034C (en) * | 2005-03-08 | 2009-06-03 | 因温特奥股份公司 | Support of equipment for conveying persons and vibration separation method for the converying equipment |
| CN100341877C (en) * | 2005-12-08 | 2007-10-10 | 侯金荣 | Method for extracting artemisinin |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |