CN202165520U - Heavy-load step chain - Google Patents
Heavy-load step chain Download PDFInfo
- Publication number
- CN202165520U CN202165520U CN2011202075875U CN201120207587U CN202165520U CN 202165520 U CN202165520 U CN 202165520U CN 2011202075875 U CN2011202075875 U CN 2011202075875U CN 201120207587 U CN201120207587 U CN 201120207587U CN 202165520 U CN202165520 U CN 202165520U
- Authority
- CN
- China
- Prior art keywords
- chain
- heavy
- roller
- pin shaft
- pin
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 8
- 230000001050 lubricating effect Effects 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001967 Metal rubber Polymers 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides an automatic staircase step chain with the advantages of high efficiency and long service suitable for heavy load conditions so as to overcome the defects of inflexible roller running and rotating as well as not good lubricating effect of the heavy load step chain in the prior art. The heavy-load step chain comprises an inner chain plate, an outer chain plate and a pin roll or a step pin roll; the inner chain plate and the outer chain plate are connected through the pin roll or the step pin roll; a sleeve is arranged at the periphery of the pin roll or the step pin roll; a sealing bearing served as a roller is arranged outside the sleeve; moreover, the sealing bearing and the sleeve are in interference fit. As a rolling bearing is adopted by the heavy-load step chain as a roller, the rolling friction between the roller and a chain wheel as well as a chain can be guaranteed; meanwhile, the friction resistance and noise can be reduced. In addition, the bearing capacity can be increased than that of a non-metal roller.
Description
Technical Field
The utility model relates to a step chain for automatic escalator, concretely relates to heavy load step chain suitable for heavy load operating mode.
Background
At present, the escalator step chain with the conventional design is composed of an inner chain plate, an outer chain plate, a pin shaft, a step pin shaft, a sleeve and a roller. The roller mainly has the following two types:
1. the metal roller is a single cylindrical part machined from a metal material and is suitable for medium and heavy load applications.
2. The non-metal roller consists of a sealing bearing positioned inside and a non-metal elastomer positioned outside, a layer of metal or non-metal material can be added between the sealing bearing and the non-metal elastomer, and the non-metal roller is a composite part containing two or more materials and is suitable for light load and medium load occasions.
The other parts of the step chain are made of carbon steel, the lubrication between the parts is usually carried out by oil dripping lubrication through an automatic oil feeder arranged in the escalator, and the lubricating medium is lubricating oil.
There are two major drawbacks to metal roller step chains used in heavy duty applications. Firstly, the difference between the inner diameter and the outer diameter of the roller is small, the roller cannot rotate flexibly during operation, the phenomenon of sliding friction with a chain guide rail exists, and the friction resistance, abrasion and noise are increased; secondly, the lubricating oil has low viscosity and poor lubricating effect under heavy load conditions.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in overcoming the roller operation of step chain among the prior art and rotating dumb, lubricated defect that the effect is not good, provides an automatic escalator step chain that is applicable to heavy load condition, high efficiency, long-life.
In order to solve these problems in the prior art, the utility model provides a technical scheme is:
the utility model provides a heavy load step chain, includes inner plate, outer plate and round pin axle or step pin axle, inner plate and outer plate between through round pin axle or step pin hub connection round pin axle or step pin axle periphery be provided with sleeve, its characterized in that: and a sealing bearing serving as a roller is arranged outside the sleeve, and is in interference fit with the sleeve.
Furthermore, the pin shaft and/or the step pin shaft is/are provided with an oil guide hole passing through the axis of the pin shaft and/or the step pin shaft, an oil cup is arranged at the center of one end of the pin shaft and/or the step pin shaft, and the oil cup and the oil guide hole are connected through a connecting hole respectively. Lubricating grease enters a space formed by the plane on the pin shaft and the inner ring of the sleeve through the oil guide hole, and the rotation of the pin shaft and the sleeve is lubricated through a gap between the pin shaft and the sleeve and the relative rotation between the pin shaft and the sleeve.
Furthermore, the oil guide hole is a through hole which is opened on the pin shaft or the step pin shaft, passes through the axis of the pin shaft or the step pin shaft and is vertical to the longitudinal axis. The structure of the oil guide hole perpendicular to the longitudinal axis does not reduce the mechanical strength of the pin shaft or the step pin shaft, and increases the conveying capacity of lubricating oil.
Furthermore, two sides of the roller seal bearing are respectively provided with a bushing which plays a role in spacing the roller seal bearing and the chain to prevent the roller seal bearing from being wornAnd (4) loss.
And furthermore, a check ring is arranged on the outer side of the outer chain plate and is clamped in the pin shaft or the step pin shaft groove on the outer side of the outer chain plate.
Furthermore, one end of the step pin shaft is provided with a roller.
Further, the oil cup and the roller are arranged on the same side face of the chain.
Furthermore, the roller consists of an internal sealing bearing and a non-metallic elastomer arranged outside.
Further, the non-metallic elastomer is polyurethane.
Furthermore, the inner chain plate and the outer chain plate are provided with oblong holes. The holes can reduce the self weight of the chain, and the long round holes are designed according to the equal strength principle, so that the rated breaking load of the chain cannot be reduced.
Compare solution in prior art, the utility model discloses the advantage is: because the heavy-load step chain directly adopts the rolling bearing as the roller, the rolling friction among the roller, the chain wheel and the chain guide rail can be ensured, the friction resistance and the noise are reduced, and the bearing capacity can be increased compared with a nonmetal roller; the oil storage space formed by the planes on the pin shaft and the step pin shaft and the sleeve enables a reliable lubricating oil film to be formed between the pin shaft and the sleeve, and reliable lubrication is provided.
Drawings
The invention will be further described with reference to the following drawings and examples:
fig. 1 is a side view of the present invention.
Fig. 2 is a front sectional view of the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Wherein,
| 1 | inner chain plate | 2 | Outer chain plate |
| 3 |
|
4 | Step pin shaft |
| 31 |
Oil guide hole on |
41 | Oil guide hole on step pin shaft |
| 32 |
Connecting hole on |
42 |
Connecting hole on |
| 5 |
|
6 | Sealed bearing |
| 7 |
|
71 |
Non-metal elastic body |
| 72 |
Sealing bearing in |
8 | Oil cup |
| 9 | Check ring | 10 | Bushing |
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Examples
As shown in fig. 2 and 3, in a preferred embodiment of the present invention, a heavy-duty step chain is formed by connecting an inner chain plate 1 and an outer chain plate 2 through a pin 3 or a step pin 4, a sleeve 5 is disposed on the periphery of the pin 3 or the step pin 4, a sealing bearing 6 serving as a roller is disposed outside the sleeve 5, and the sealing bearing 6 is in interference fit with the sleeve 5. Because the sealing bearing 6 is directly adopted as the roller, the rolling friction between the roller sealing bearing 6 and the chain wheel and the chain guide rail can be ensured, the friction resistance and the noise are reduced, and the bearing capacity can be increased compared with a non-metallic roller.
In a further embodiment of the invention, as shown in fig. 3, the pin 3 and/or the ladder are/isThe step pin shaft 4 is provided with oil guide holes 31 and 41 passing through the axis thereof, an oil cup 8 is arranged at the center of one end of the pin shaft and/or the step pin shaft, and the oil cup 8 is connected with the oil guide holes 31 and 41 through connecting holes 32 and 42 respectively. Preferably, the oil guide holes 31 and 41 are through holes that open on the pin 3 and the step pin 4, respectively, and pass through the axes thereof.
And an oil cup 8 is arranged on one side end face of the pin shaft 3 or the step pin shaft 4, lubricating grease is injected into the pin shaft 3 and the step pin shaft 4 through the oil cup 8 until the pin shaft and the step pin shaft are filled with the lubricating grease, and all the oil cups 8 and the rollers 7 are arranged on the same side face of the chain. The roller seal bearing 6 is arranged at the center of the sleeve 5, the bush 10 is respectively arranged at the two sides of the roller seal bearing 6, the inner chain plate 1 is arranged at the outer side of the bush 10, and the pin shaft 3 or the step pin shaft 4 is arranged in the sleeve 5. The retainer ring 9 is arranged on the outer side of the outer chain plate 2 and clamped in the shaft groove of the pin shaft or the step pin, one end of the step pin shaft 4 is provided with the roller 7, and the other end is reserved with a shaft connected with the step shaft hole.
As shown in figure 1, each three-section chain has two pin shafts and a step pin shaft, and the outer chain plates 2 are arranged on the outer sides of two end surfaces of the sleeve 5.
The above examples are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable one skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. A heavy-duty step chain comprises inner chain plates (1), outer chain plates (2) and pin shafts (3) or step pin shafts (4), wherein the inner chain plates (1) and the outer chain plates (2) are connected through the pin shafts (3) or the step pin shafts (4), sleeves (5) are arranged on the peripheries of the pin shafts (3) or the step pin shafts (4),
the method is characterized in that: and a sealing bearing (6) serving as a roller is arranged outside the sleeve (5), and the sealing bearing (6) is in interference fit with the sleeve (5).
2. The heavy-duty step chain according to claim 1, wherein the pin shaft (3) and/or the step pin shaft (4) is provided with oil guide holes (31, 41) passing through the axis thereof, an oil cup (8) is mounted at the center of one end of the pin shaft and/or the step pin shaft, and the oil cup (8) is connected with the oil guide holes (31, 41) through connecting holes (32, 42), respectively.
3. The heavy-duty step chain according to claim 2, wherein the oil guide holes (31, 41) are through holes opened on the pin shaft (3) and the step pin shaft (4) and passing through the axes thereof, respectively.
4. A heavy duty step chain according to any one of claims 1 to 3, wherein bushings (10) are provided on each side of said roller seal bearing.
5. The heavy-duty step chain according to claim 1, characterized in that a retainer ring (9) is provided on the outer side of the outer link plate (2), and the retainer ring (9) is fitted on the outer side of the outer link plate (2) and is engaged in the pin or step pin groove.
6. The heavy duty step chain of claim 1, wherein one end of said step pin shaft (4) is equipped with a roller (7).
7. The heavy duty step chain of claim 2, wherein said oil cups (8) and rollers (7) are mounted on the same side of the chain.
8. The heavy duty step chain according to claim 6 or 7, wherein said rollers (7) are comprised of an inner located sealed bearing (72) and an outer located non-metallic elastomer (71).
9. The heavy-duty step chain of claim 1, wherein said inner and outer link plates are provided with oblong holes (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202075875U CN202165520U (en) | 2011-10-20 | 2011-10-20 | Heavy-load step chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202075875U CN202165520U (en) | 2011-10-20 | 2011-10-20 | Heavy-load step chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165520U true CN202165520U (en) | 2012-03-14 |
Family
ID=45801346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202075875U Expired - Lifetime CN202165520U (en) | 2011-10-20 | 2011-10-20 | Heavy-load step chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165520U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322499A (en) * | 2011-06-20 | 2012-01-18 | 苏州市申龙电梯有限公司 | The heavy duty step chains |
| CN105151990A (en) * | 2015-08-25 | 2015-12-16 | 上海爱登堡电梯江苏有限公司 | Large-height escalator with heavy-load safety step chain |
| CN108044662A (en) * | 2018-02-07 | 2018-05-18 | 长江大学 | A kind of slicing device of agricultural and sideline fruit slicing machine |
-
2011
- 2011-10-20 CN CN2011202075875U patent/CN202165520U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322499A (en) * | 2011-06-20 | 2012-01-18 | 苏州市申龙电梯有限公司 | The heavy duty step chains |
| CN105151990A (en) * | 2015-08-25 | 2015-12-16 | 上海爱登堡电梯江苏有限公司 | Large-height escalator with heavy-load safety step chain |
| CN108044662A (en) * | 2018-02-07 | 2018-05-18 | 长江大学 | A kind of slicing device of agricultural and sideline fruit slicing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215155 SUZHOU, JIANGSU PROVINCE TO: 215213 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120406 Address after: 215213, Jiangsu, Suzhou Province, Wujiang Town, South Tower, Longgang Road South Patentee after: Shenlong Elevator Co., Ltd. Address before: 215155, Jiangsu, Suzhou province Wujiang Fen Lake Town Xin tower on the south side of Longgang Road Patentee before: Suzhou Shenlong Elevator Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |