CN204784229U - Elevator nylon guide pulley special bearing - Google Patents
Elevator nylon guide pulley special bearing Download PDFInfo
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- CN204784229U CN204784229U CN201520462497.9U CN201520462497U CN204784229U CN 204784229 U CN204784229 U CN 204784229U CN 201520462497 U CN201520462497 U CN 201520462497U CN 204784229 U CN204784229 U CN 204784229U
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- nylon guide
- guide wheel
- bearing
- elevator
- outer ring
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Abstract
The utility model discloses an elevator nylon guide pulley special bearing, include: nylon guide pulley, bearing and main shaft, the axle contracting draw together outer lane, inner circle and install rolling element between outer lane and the inner circle, the outer lane with nylon guide pulley interference fit, the inner circle with main shaft clearance fit, there is the annular knurl on the excircle surface of outer lane along radial the pressure. In this way, the utility model discloses not hard up produced " with changeing " and " the skidding " of cooperation between nylon guide pulley and bearing be can solve, reliability, security and the travelling comfort of elevator are improved.
Description
Technical field
The utility model relates to technical field of bearings, particularly relates to a kind of elevator nylon guide wheel special bearing.
Background technique
In recent years, in elevator industry, the application of nylon guide wheel is more and more extensive, because it has the many merits such as lightweight, wear-resistant, corrosion-resistant, shock-resistant, damping, sound-absorbing.Compare traditional cast iron or Cast Steel guide wheel, the life-span of nylon guide wheel improves 4 ~ 5 times especially.
But nylon guide wheel is also not immaculate.Coefficientoffrictionμ due to nylon is only 1/5 of cast iron, and under identical cooperation pressure, nylon guide wheel and institute join between bearing outer ring " transfer " and " skidding " phenomenon more easily occurs.The lighter produces different sound and vibrations, affects the steady of elevator and travelling comfort; Severe one causes the early failue of bearing, bearing clamping stagnation, leads to elevator stopping accident.
In addition, due to the coefficient of linear expansion α ι of nylon is cast iron about 10 times.Time in the winter time, ambient temperature reduces, and nylon guide wheel shrinkage degree can much larger than the shrinkage degree of bearing, and the cooperation pressure that bearing bears strengthens, and accelerates the wearing and tearing of Bearing inner part, reduces the working life of bearing; When summer, ambient temperature raises, and rise heat that degree is far longer than bearing of the heat of nylon guide wheel rises degree, and cooperation between the two is significantly fluffed, and nylon guide wheel and institute join between bearing outer ring " transfer " and " skidding " phenomenon easily occurs.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of elevator nylon guide wheel special bearing, " transfer " and " skidding " that the matching loose that can solve between nylon guide wheel and bearing produces, improves the reliability of elevator, Security and travelling comfort.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: provide a kind of elevator nylon guide wheel special bearing, comprise: nylon guide wheel, bearing and main shaft, the rolling element that described bearing comprises outer ring, inner ring and is arranged between described outer ring and inner ring, described outer ring and described nylon guide wheel interference fit, described inner ring coordinates with described gap of main reinforcement, and the outer round surface of described outer ring is radially pressed with annular knurl.
In the utility model preferred embodiment, described annular knurl is straight knurling.
In the utility model preferred embodiment, the compacting degree of depth of described annular knurl is 0.3-0.4mm.
In the utility model preferred embodiment, the compacting width of described annular knurl is more than or equal to the half of described outer ring width.
In the utility model preferred embodiment, described bearing also comprises the Sealing be arranged between described outer ring and described inner ring.
In the utility model preferred embodiment, described rolling element is inlaid in retainer pocket hole and forms retainer assembly, and described retainer assembly is arranged between described outer ring and inner ring.
The beneficial effects of the utility model are: radially change the contact property with nylon guide wheel fitting surface with the bearing of annular knurl by adopting outer round surface, realize the significantly lifting of bearing outer ring and nylon guide wheel circumferencial direction moment of torsion, thus " transfer " and " skidding " that the matching loose between solution nylon guide wheel and bearing produces, improve the reliability of elevator, Security and travelling comfort.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of elevator nylon guide wheel of the utility model special bearing one preferred embodiment;
In accompanying drawing, the mark of each parts is as follows: 1, nylon guide wheel, and 2, bearing, 21, outer ring, 22, inner ring, 23, rolling element, 24, retainer, 25, Sealing, 26, annular knurl, 3, main shaft.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Refer to Fig. 1, the utility model is embodiment comprise:
A kind of elevator nylon guide wheel special bearing, comprising: nylon guide wheel 1, bearing 2 and main shaft 3; Described bearing 2 comprises outer ring 21, inner ring 22, rolling element 23, retainer 24 and Sealing 25, described rolling element 23 is inlaid in the pocket hole of described retainer 24, form retainer assembly, between the raceway that described retainer assembly is arranged on described outer ring 21 and the raceway of described inner ring 22, between the seal groove that described Sealing 25 is arranged on described outer ring 21 and the seal groove of described inner ring 22; Described outer ring 21 and described nylon guide wheel 1 interference fit, make nylon guide wheel 1 be anchored on bearing outer ring 21; Described inner ring 22 and described main shaft 3 Spielpassung, can realize the free floating of bearing 2 on main shaft 1; The outer round surface of described outer ring 21 is radially pressed with annular knurl 26, makes it more solid and reliable with coordinating of nylon guide wheel 1.
Wherein, described annular knurl 26 is straight knurling, and the compacting degree of depth of described annular knurl 26 is 0.3-0.4mm, and the compacting width of described annular knurl 26 is more than or equal to the half of the width of described outer ring 21.
The utility model adopts special construction design of journal bearings, under the prerequisite not affecting bearing working life, after solving ambient temperature rising, " transfer " and " skidding " that the matching loose between nylon guide wheel and bearing produces.Improve the reliability of elevator, Security and travelling comfort.
Under identical cooperation, circumference moment of torsion of the present utility model is more than 3 times that adopt plain bearing circumference moment of torsion; In addition, even if ambient temperature reaches 50 °, adopt nylon guide wheel of the present invention, still can realize between nylon guide wheel and bearing in conjunction with solid and reliable.
The utility model discloses a kind of elevator nylon guide wheel special bearing, radially the contact property with nylon guide wheel fitting surface is changed with the bearing of annular knurl by adopting outer round surface, realize the significantly lifting of bearing outer ring and nylon guide wheel circumferencial direction moment of torsion, thus " transfer " and " skidding " that the matching loose between solution nylon guide wheel and bearing produces, improve the reliability of elevator, Security and travelling comfort.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. an elevator nylon guide wheel special bearing, comprise: nylon guide wheel, bearing and main shaft, it is characterized in that, the rolling element that described bearing comprises outer ring, inner ring and is arranged between described outer ring and inner ring, described outer ring and described nylon guide wheel interference fit, described inner ring coordinates with described gap of main reinforcement, and the outer round surface of described outer ring is radially pressed with annular knurl.
2. elevator nylon guide wheel special bearing according to claim 1, is characterized in that, described annular knurl is straight knurling.
3. elevator nylon guide wheel special bearing according to claim 1, is characterized in that, the compacting degree of depth of described annular knurl is 0.3-0.4mm.
4. elevator nylon guide wheel special bearing according to claim 1, is characterized in that, the compacting width of described annular knurl is more than or equal to the half of described outer ring width.
5. elevator nylon guide wheel special bearing according to claim 1, it is characterized in that, described bearing also comprises the Sealing be arranged between described outer ring and described inner ring.
6. elevator nylon guide wheel special bearing according to claim 1, is characterized in that, described rolling element is inlaid in retainer pocket hole and forms retainer assembly, and described retainer assembly is arranged between described outer ring and inner ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520462497.9U CN204784229U (en) | 2015-07-01 | 2015-07-01 | Elevator nylon guide pulley special bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520462497.9U CN204784229U (en) | 2015-07-01 | 2015-07-01 | Elevator nylon guide pulley special bearing |
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CN204784229U true CN204784229U (en) | 2015-11-18 |
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CN201520462497.9U Active CN204784229U (en) | 2015-07-01 | 2015-07-01 | Elevator nylon guide pulley special bearing |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104948593A (en) * | 2015-07-01 | 2015-09-30 | 常熟长城轴承有限公司 | Special bearing for elevator nylon guide wheel |
CN105485175A (en) * | 2015-12-29 | 2016-04-13 | 宁波新大地轴承有限公司 | Bearing assembly |
US11999590B2 (en) | 2022-01-03 | 2024-06-04 | Otis Elevator Company | Modular elevator sheave assembly |
-
2015
- 2015-07-01 CN CN201520462497.9U patent/CN204784229U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104948593A (en) * | 2015-07-01 | 2015-09-30 | 常熟长城轴承有限公司 | Special bearing for elevator nylon guide wheel |
CN105485175A (en) * | 2015-12-29 | 2016-04-13 | 宁波新大地轴承有限公司 | Bearing assembly |
US11999590B2 (en) | 2022-01-03 | 2024-06-04 | Otis Elevator Company | Modular elevator sheave assembly |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: No. 30, Suzhou Road, Changshu City, Suzhou City, Jiangsu Province 215500 Patentee after: Suzhou Great Wall Precision Technology Co.,Ltd. Address before: No. 30, Suzhou Road, Changshu City, Suzhou City, Jiangsu Province 215500 Patentee before: CSC Bearing Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder |