CN105775975A - Driving chain wheel for passenger transportation device - Google Patents
Driving chain wheel for passenger transportation device Download PDFInfo
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- CN105775975A CN105775975A CN201410841448.6A CN201410841448A CN105775975A CN 105775975 A CN105775975 A CN 105775975A CN 201410841448 A CN201410841448 A CN 201410841448A CN 105775975 A CN105775975 A CN 105775975A
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- wheel
- vibration damping
- chain wheel
- sprocket
- sides
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- Escalators And Moving Walkways (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a driving chain wheel for a passenger transportation device. The driving chain wheel comprises vibration reducing chain wheels, reinforced chain wheels and fastening parts; the reinforced chain wheels are fixedly arranged on single sides or two sides of the vibration reducing chain wheels; mounting holes are respectively formed in the vibration reducing chain wheels and the reinforced chain wheels, and the vibration reducing chain wheels and the reinforced chain wheels are axially connected and fixed as a whole through multiple fastening parts arranged in the mounting holes; the shapes of the reinforced chain wheels are matched with the shapes of the vibration reducing chain wheels; the bottoms of tooth grooves of the reinforced chain wheels are lower than the bottoms of tooth grooves of the vibration reducing chain wheels; and the two sides of the tooth grooves of the reinforced chain wheels are aligned to or slightly higher than the two sides of the tooth grooves of the vibration reducing chain wheels. The driving chain wheel is simple in structure, convenient for disassembly and assembly, easy to guarantee the matching precision after installation and capable of guaranteeing stable engagement between chains and chain wheels, guarantees the strength, and can be applied to heavy-load public transportation places.
Description
Technical field
The present invention relates to the adnexa of a kind of passenger conveying appliance, be specifically related to a kind of drive sprocket for passenger conveying appliance.
Background technology
Bigger vibration that chain in escalator or the driving station of moving sidewalk, rotating station and sprocket engagement can produce and noise.In order to overcome this defect, it is generally adopted the following two kinds technology at present:
One is to adopt all-steel sprocket wheel, stepchain roller is placed between chain medial and lateral, the roller being made up of nonmetallic materials and steel sprocket engagement.But due to the restriction by the diameter of stepchain roller own, the bearing in stepchain roller cannot bear bigger power, therefore this structure cannot adapt to that hoisting depth is higher or heavy-load type public transport occasion.
Another kind is to adopt steel sprocket wheel, cushion blocking or cushion idler etc. is increased at each tooth place of sprocket wheel, such as what: Chinese patent literature CN101891104A disclosed a kind of escalator or pedals on moving walk chain and sprocket wheel, structure is set, including the sprocket wheel being meshed, chain, the radial surface of sprocket wheel is provided with multiple spaced roll wheel assembly of the circumferencial direction along sprocket wheel, roll wheel assembly support chain sheet, carries driven load.But this structure cannot bear bigger load along the circumferencial direction roll wheel assembly of sprocket wheel, still cannot adapt to that hoisting depth is higher or heavy-load type public transport occasion, and the installation difference between inside and outside side wheel height precision difference and each roll wheel assembly still can bring bigger vibration.
Chinese patent literature CN103588077A discloses the step chains roller damping device of a kind of big height public traffic type, described ladder sprocket wheel be respectively provided on two sides with the nonmetal roller for support chain sheet, make step chains roller directly not contact with sprocket indentations.But the installation difference that this structure still cannot solve between inside and outside side wheel height precision difference and each roll wheel assembly brings bigger vibration.
Chinese patent literature CN2855986Y discloses a kind of escalator step or the sprocket wheel of automatic sidewalk pedal chain, including the sprocket body having multiple teeth groove on external peripheral surface and the cushion blocking being placed in teeth groove.Owing to sprocket wheel has many teeth groove, therefore this structure installation workload is big, and needs to process in each teeth groove, processing inconvenience, and the alignment error of multiple cushion blocking will also result in, and engagement height is inconsistent brings bigger mesh vibration.
Summary of the invention
The technical problem to be solved is to provide a kind of drive sprocket for passenger conveying appliance, and it can reduce and the vibration in step chain engagement process and noise.
For solving above-mentioned technical problem, the present invention for the technical solution of the drive sprocket of passenger conveying appliance is:
Including vibration damping chain wheel, strengthening sprocket wheel, securing member, the one side of vibration damping chain wheel or both sides are fixedly installed reinforcement sprocket wheel；Vibration damping chain wheel and reinforcement sprocket wheel offer installing hole respectively, and the multiple fastener shaft passing through to be arranged in installing hole are to being connected into entirety；The described sprocketed wheel shape of reinforcement sprocket wheel matches with the sprocketed wheel shape of vibration damping chain wheel；The gullet base of described reinforcement sprocket wheel is lower than the gullet base of vibration damping chain wheel；Align with the teeth groove both sides of vibration damping chain wheel or slightly above the teeth groove both sides of vibration damping chain wheel in the teeth groove both sides of described reinforcement sprocket wheel.
Described vibration damping chain wheel is by nonmetallic materials plastic forming.
Described vibration damping chain wheel is made up of macromolecular material.
The material of described vibration damping chain wheel is nylon or polyurethane.
Described vibration damping chain wheel is one or more pieces.
Described reinforcement sprocket wheel is one or more pieces.
Described vibration damping chain wheel is along same circumference installing hole spaced apart.
In the beginning of engagement process, the roller of step chain contacts with the gullet base of described vibration damping chain wheel, and the gullet base strengthening sprocket wheel does not directly contact with the roller of step chain；Along with the carrying out of engagement process, the teeth groove both sides that the roller of step chain starts with vibration damping chain wheel contact, and contact with reinforcement sprocket wheel gradually, to ensure the transmission of driving force.
When the teeth groove both sides of described reinforcement sprocket wheel are slightly above the teeth groove both sides of vibration damping chain wheel, in engagement process, the transmission of driving force is completed by strengthening sprocket wheel, and vibration damping chain wheel is not involved in the transmission of driving force；When aliging with the teeth groove both sides of vibration damping chain wheel in the teeth groove both sides of described reinforcement sprocket wheel, in engagement process, the transmission of driving force is by strengthening sprocket wheel and vibration damping chain wheel completes jointly.
What the present invention can reach has the technical effect that
The vibration damping chain wheel of the present invention can make the engagement process between sprocket wheel and the roller of step chain operate steadily, noise and vibration are obviously reduced；Strengthening sprocket wheel can make chain wheel assembly keep due driving intensity.
Present configuration is simple, and easy accessibility, after installation, quality of fit is easily guaranteed that, it can be ensured that chain is steady with engaging of sprocket wheel；And intensity is ensured, can apply to heavy-load type public transport occasion.
The present invention without installing cushion blocking and cushion idler, decreases the mesh vibration that alignment error is brought in engagement process, and installation requirement is low, easy accessibility.Owing to device not having nonmetal roller, it is possible to meet that hoisting depth is high and the needs of heavy-load type public transport occasion, long service life, effective.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the present invention structural representation for the drive sprocket of passenger conveying appliance；
Fig. 2 is the decomposing schematic representation of Fig. 1；
Fig. 3 is the vibration damping chain wheel of the present invention and the profile of tooth schematic diagram strengthening sprocket wheel；
Fig. 4 is the mesh schematic representation of the present invention and step chain.
Description of reference numerals in figure:
1 is vibration damping chain wheel, and 2 for strengthening sprocket wheel,
3 is securing member.
Detailed description of the invention
As shown in Figure 1 to Figure 2, the present invention for the drive sprocket of passenger conveying appliance, including vibration damping chain wheel 1, strengthens sprocket wheel 2, securing member 3 for connecting, and vibration damping chain wheel 1 directly engages with the roller of step chain, engagement is steady, thus reaching vibration damping and reducing the effect of noise；The one side of vibration damping chain wheel 1 or both sides are fixedly installed reinforcement sprocket wheel 2, strengthen sprocket wheel 2 for guaranteeing the intensity of sprocket wheel；Vibration damping chain wheel 1 and reinforcement sprocket wheel 2 offer installing hole respectively, and is axially connected into entirety by the multiple securing members 3 being arranged in installing hole, to meet the high load requirements with heavy-load type public transport occasion of hoisting depth；
The sprocketed wheel shape of vibration damping chain wheel 1 designs according to pitch and the roller size of step chain, and along same circumference uniform intervals distributing installation hole；
As it is shown on figure 3, the sprocketed wheel shape strengthening sprocket wheel 2 matches with the sprocketed wheel shape of vibration damping chain wheel 1, each tooth to ensure vibration damping chain wheel 1 is enhanced；And strengthen the gullet base of sprocket wheel 2 lower than the gullet base of vibration damping chain wheel 1, strengthen the teeth groove both sides of sprocket wheel 2 and align with the teeth groove both sides of vibration damping chain wheel 1 or slightly above the teeth groove both sides of vibration damping chain wheel 1；Align with the teeth groove both sides of vibration damping chain wheel 1 in the teeth groove both sides strengthening sprocket wheel 2 in Fig. 3；When strengthening the teeth groove both sides of sprocket wheel 2 slightly above the teeth groove both sides of vibration damping chain wheel 1, in engagement process, the transmission of driving force all completes by strengthening sprocket wheel 2, and vibration damping chain wheel 1 is not involved in the transmission of driving force；；When aliging with the teeth groove both sides of vibration damping chain wheel 1 in the teeth groove both sides strengthening sprocket wheel 2, in engagement process, the transmission of driving force is by strengthening sprocket wheel 2 and vibration damping chain wheel 1 completes jointly, and reinforcement sprocket wheel 2 can reduce the transmission of driving force；
Vibration damping chain wheel 1 is by nonmetallic materials plastic forming；Vibration damping chain wheel 1 can be made up of the macromolecular material such as nylon, polyurethane；
Strengthening sprocket wheel 2 to be made by machining, profile of tooth is easily guaranteed that, and namely be can guarantee that the cooperation of profile of tooth by simple frock；After vibration damping chain wheel 1 can also be matched with reinforcement sprocket wheel 2, both are carried out the processing of rear road, to guarantee the cooperation of profile of tooth；
Vibration damping chain wheel 1 and the installing hole strengthened on sprocket wheel 2 can be processed simultaneously, concentric with the installing hole both ensureing；
Vibration damping chain wheel 1 is one or more pieces；
Strengthening sprocket wheel 2 is one or more pieces.
The vibration attenuation mechanism of the present invention is as follows:
As shown in Figure 4, in the beginning of engagement process, the roller of step chain contacts with the gullet base of vibration damping chain wheel 1, and the gullet base strengthening sprocket wheel 2 does not directly contact with the roller of step chain, reduces noise and vibration；
Carrying out along with engagement process, it is necessary to bear increasing engaged transmission power, the teeth groove both sides that the roller of step chain starts with vibration damping chain wheel 1 contact, and contact with reinforcement sprocket wheel 2 gradually, to ensure the transmission of driving force.
The present invention is being easiest to produce the engagement initial stage of noise and vibration, and the roller of step chain contacts with vibration damping chain wheel 1, and does not strengthen sprocket wheel 2 with rigid element and directly contact such that it is able to reduce mesh vibration and noise；Reinforcement sprocket wheel 2 then ensure that sprocket wheel intensity during engagement, to ensure the transmission of driving force.
The present invention, for the driving of escalator step or automatic sidewalk pedal chain, is mainly used in escalator or the driving station of moving sidewalk, rotating station.
Claims (9)
1. the drive sprocket for passenger conveying appliance, it is characterised in that: including vibration damping chain wheel, strengthen sprocket wheel, securing member, the one side of vibration damping chain wheel or both sides are fixedly installed reinforcement sprocket wheel；Vibration damping chain wheel and reinforcement sprocket wheel offer installing hole respectively, and the multiple fastener shaft passing through to be arranged in installing hole are to being connected into entirety；
The described sprocketed wheel shape of reinforcement sprocket wheel matches with the sprocketed wheel shape of vibration damping chain wheel；The gullet base of described reinforcement sprocket wheel is lower than the gullet base of vibration damping chain wheel；Align with the teeth groove both sides of vibration damping chain wheel or slightly above the teeth groove both sides of vibration damping chain wheel in the teeth groove both sides of described reinforcement sprocket wheel.
2. the drive sprocket for passenger conveying appliance according to claim 1, it is characterised in that: described vibration damping chain wheel is by nonmetallic materials plastic forming.
3. the drive sprocket for passenger conveying appliance according to claim 1, it is characterised in that: described vibration damping chain wheel is made up of macromolecular material.
4. the drive sprocket for passenger conveying appliance according to claim 1, it is characterised in that: the material of described vibration damping chain wheel is nylon or polyurethane.
5. the drive sprocket for passenger conveying appliance according to claim 1, it is characterised in that: described vibration damping chain wheel is one or more pieces.
6. according to claim 1 or 5 for the drive sprocket of passenger conveying appliance, it is characterised in that: described reinforcement sprocket wheel is one or more pieces.
7. the drive sprocket for passenger conveying appliance according to claim 1, it is characterised in that: described vibration damping chain wheel is along same circumference installing hole spaced apart.
8. the drive sprocket for passenger conveying appliance according to claim 1, it is characterized in that: in the beginning of engagement process, the roller of step chain contacts with the gullet base of described vibration damping chain wheel, and the gullet base strengthening sprocket wheel does not directly contact with the roller of step chain；Along with the carrying out of engagement process, the teeth groove both sides that the roller of step chain starts with vibration damping chain wheel contact, and contact with reinforcement sprocket wheel gradually, to ensure the transmission of driving force.
9. the drive sprocket for passenger conveying appliance according to claim 1, it is characterized in that: when the teeth groove both sides of described reinforcement sprocket wheel are slightly above the teeth groove both sides of vibration damping chain wheel, in engagement process, the transmission of driving force is completed by strengthening sprocket wheel, and vibration damping chain wheel is not involved in the transmission of driving force；When aliging with the teeth groove both sides of vibration damping chain wheel in the teeth groove both sides of described reinforcement sprocket wheel, in engagement process, the transmission of driving force is by strengthening sprocket wheel and vibration damping chain wheel completes jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410841448.6A CN105775975B (en) | 2014-12-25 | 2014-12-25 | Drive sprocket for passenger conveying appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410841448.6A CN105775975B (en) | 2014-12-25 | 2014-12-25 | Drive sprocket for passenger conveying appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105775975A true CN105775975A (en) | 2016-07-20 |
| CN105775975B CN105775975B (en) | 2019-02-01 |
Family
ID=56389761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410841448.6A Active CN105775975B (en) | 2014-12-25 | 2014-12-25 | Drive sprocket for passenger conveying appliance |
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| Country | Link |
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| CN (1) | CN105775975B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889550A (en) * | 1973-11-19 | 1975-06-17 | Caterpillar Tractor Co | Impact absorbing noise suppression device |
| US4332574A (en) * | 1979-01-29 | 1982-06-01 | Kawasaki Jukogyo Kabushiki Kaisha | Motorcycle sprocket |
| US5819910A (en) * | 1996-07-10 | 1998-10-13 | Otis Elevator Company | Noise reduced step chain sprocket |
| DE202010005941U1 (en) * | 2010-04-19 | 2010-07-08 | Renold Gmbh | Sprocket for a drive and / or conveyor chain and conveyor belt system with a sprocket |
| CN102287515A (en) * | 2010-06-04 | 2011-12-21 | 株式会社椿本链条 | Sprocket |
-
2014
- 2014-12-25 CN CN201410841448.6A patent/CN105775975B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889550A (en) * | 1973-11-19 | 1975-06-17 | Caterpillar Tractor Co | Impact absorbing noise suppression device |
| US4332574A (en) * | 1979-01-29 | 1982-06-01 | Kawasaki Jukogyo Kabushiki Kaisha | Motorcycle sprocket |
| US5819910A (en) * | 1996-07-10 | 1998-10-13 | Otis Elevator Company | Noise reduced step chain sprocket |
| DE202010005941U1 (en) * | 2010-04-19 | 2010-07-08 | Renold Gmbh | Sprocket for a drive and / or conveyor chain and conveyor belt system with a sprocket |
| CN102287515A (en) * | 2010-06-04 | 2011-12-21 | 株式会社椿本链条 | Sprocket |
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| Publication number | Publication date |
|---|---|
| CN105775975B (en) | 2019-02-01 |
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