CN103671557B - Bearing-lubricating device and the escalator or the man conveyor belt that comprise it - Google Patents
Bearing-lubricating device and the escalator or the man conveyor belt that comprise it Download PDFInfo
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- CN103671557B CN103671557B CN201210323270.7A CN201210323270A CN103671557B CN 103671557 B CN103671557 B CN 103671557B CN 201210323270 A CN201210323270 A CN 201210323270A CN 103671557 B CN103671557 B CN 103671557B
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Abstract
The present invention relates to bearing-lubricating device, it is for the lubrication of escalator or the bearing (1) of the main transmission of man conveyor belt, described bearing (1) comprises outside race (11), rolling assembly (12) and inside race (13), it is characterised in that: described bearing-lubricating device comprises the 3rd duct in the outside race (11) of the 2nd duct (5) on the first duct (4) in oil nozzle (2), insert (3), axle sleeve (10) and described bearing; And, described first duct (4), the 2nd duct (5) form the oil circuit being connected with the 3rd duct, thus, the lubricating oil injected by described oil nozzle (2) can arrive the internal surface of described outside race (11), and then is lubricated by described rolling assembly (12). The present invention reaches and facilitates bearing add or change lubricating oil, improve the lubrication of bearing, extend bearing use properties and the technique effect in life-span. The present invention also relates to escalator or man conveyor belt, and it comprises described bearing-lubricating device.
Description
Technical field
The present invention relates to bearing-lubricating device, it is for escalator or the drive bearing of man conveyor belt, especially main transmission bearing, and a part for escalator or man conveyor belt is carried out structure improvement (F16N1/00) for lubrication object by described bearing-lubricating device. And the present invention also relates to the escalator or man conveyor belt that comprise described bearing-lubricating device.
Background technology
The pedestal bearing of escalator or man conveyor belt adopts the mode exempting from lubrication usually. But, for the environment that temperature is higher, due to lubricating grease can continuous deliquescing and loss along with the rising of temperature, thus affect the lubrication of bearing, cause bearing heating, produce noise etc., even cause the serious consequence that bearing is stuck.
Traditional oil circuit as depicted in figs. 1 and 2 is arranged, owing to oil nozzle 3 is surrounded by sprocket wheel 1, truss 2 etc., causes needing being carried out by bearing 4 lubricating oil when supplementing, and compressor gun is difficult to close to oil nozzle 1.
Patent documentation No.CN200580010960.5 discloses a kind of machine with improvement bearing lubrication, in figs. 2-5 it may be seen that oil gallery leads to the cavity between two bearings.
The open bearing lubricant circuit of input axis of rectangular axis gearbox of patent documentation No.CN200920200555.5, wherein, described bearing housing has by oil supply hole that cavity between oil input channel with the first bearing, the 2nd bearing is connected.
Patent documentation No.CN201120179812.9 discloses the lubrication by oil circulation oil circuit in a kind of car transmissions, and wherein, the outer ring of double row angular contact ball bearing is provided with radial direction oil hole and the annular groove B along hole inwall circumference, and this oilhole aligns with annular groove B.
Patent documentation No.CN200710023904.6 discloses the lubrication system of the good support roller bearing in drawing straightening machine of a kind of lubricating status, comprise bearing support and bearing, in the lower passage that the bottom of bearing support is provided with the bearing oil groove in bearing communicates, at the upper channel that the top of bearing support is provided with the bearing oil groove in bearing communicates, and it is provided with the stifled head of bolt in the exit of lower passage.
But, above-mentioned prior art cannot be applied to escalator or man conveyor belt technical field completely, can not solve the problems of the technologies described above completely.
Summary of the invention
The main purpose of the present invention proposes the technical scheme that solves the problems of the technologies described above, reaches and facilitates bearing add or change lubricating oil, improve the lubrication of bearing, extend bearing use properties and the technique effect in life-span.
For this reason, the present invention proposes bearing-lubricating device, it is for the lubrication of escalator or the bearing of the supporting axle of man conveyor belt, described bearing comprises outside race, rolling assembly and inside race, the inside race of described bearing is installed in the 2nd journal body of described supporting axle, the outside race of described bearing is installed in the first end of axle sleeve, and described first end has axle sleeve flange, it is characterised in that:
Described bearing-lubricating device comprises the 3rd duct in the outside race of the 2nd duct on the first duct in oil nozzle, insert, axle sleeve and described bearing;
Described oil nozzle is arranged in described first duct; Described insert is together with described axle sleeve Flange joint, and described insert and oil nozzle are arranged on the axle sleeve side of described axle sleeve flange; Outside surface and the internal surface of described outside race is run through in described 3rd duct;
Further, described first duct, the 2nd duct form the oil circuit being connected with the 3rd duct, thus, the lubricating oil injected by described oil nozzle can arrive the internal surface of described outside race, and then is lubricated by described rolling assembly.
Technique scheme facilitate maintenance personnel to bearing add or change lubricating oil/lubricating grease, the lubrication improving bearing, extend bearing use properties and life-span.
The present invention also relates to escalator or man conveyor belt, it is characterised in that, described escalator or man conveyor belt comprise bearing-lubricating device of the present invention or it implements modification. Escalator or man conveyor belt after improvement are extended work-ing life, thus effectively cut operating costs.
Accompanying drawing explanation
With reference to accompanying drawing, the feature of the present invention, advantage and characteristic are able to better understanding by the description of embodiment hereafter, in accompanying drawing:
Fig. 1 illustrates that the built-up type sprocket wheel of escalator or man conveyor belt is at the installation supported on axle and supporting structure, wherein uses traditional oil circuit to arrange.
Fig. 2 is the A district partial enlargement figure of Fig. 1, and oil circuit traditional shown in it is arranged.
The built-up type sprocket wheel of Fig. 3 escalator or man conveyor belt, at the installation supported on axle and supporting structure, wherein uses the bearing-lubricating device of the present invention.
Fig. 4 is the B district partial enlargement figure of Fig. 2, the bearing-lubricating device of the present invention shown in it.
Fig. 5 is the exploded perspective view of the bearing-lubricating device of the present invention.
In the accompanying drawings, different elements uses different numerical markingss, and identical element uses identical numerical markings, wherein,
1 bearing
2 oil nozzles
3 inserts
4 first ducts
5 the 2nd ducts
6 axle sleeve flanges
7 cavitys
8 annular recessess
9 supporting axles
10 axle sleeves
11 outside race
12 rolling assemblies
13 inside races
16 built-up type sprocket wheels
17 first sprocket wheels
18 the 2nd sprocket wheels
20 truss
91 the 2nd journal body
And term is clearly demonstrated, wherein, the first side of axle sleeve flange and the truss side of axle sleeve flange have identical implication, refer to the side of the end face towards truss 20 of axle sleeve flange 6; 2nd side of axle sleeve flange and the axle sleeve side of axle sleeve flange have identical implication, refer to the side of the end face towards axle sleeve 10 of axle sleeve flange 6.
Embodiment
With reference to Fig. 4, main embodiment according to the present invention, the bearing-lubricating device of the present invention is used for the lubrication of the bearing 1 of the supporting axle 9 of escalator or man conveyor belt, described bearing 1 comprises outside race 11, rolling assembly 12 and inside race 13, the inside race 13 of described bearing is installed in the 2nd journal body 91 of described supporting axle, the outside race 11 of described bearing is installed in the first end of axle sleeve 10, and described first end has axle sleeve flange 6. As shown in Figure 3, described axle sleeve flange 6 is used as the installation structure of built-up type sprocket wheel 16 so that described built-up type sprocket wheel 16 links together with the transmission bearing assembly being made up of described axle sleeve 10 and described supporting axle 9. Described built-up type sprocket wheel 16 comprises the first sprocket wheel 17 and the 2nd sprocket wheel 18, and described first sprocket wheel 17 is used as to drive sprocket wheel, and the chain drive-belt with escalator or man conveyor belt is meshed, for transmitting motion and power; Described 2nd sprocket wheel 18 is used as ladder sprocket wheel or pedal sprocket, and step chain or the pedal chain with escalator or man conveyor belt is meshed, and will move with transmission of power to step or pedal. As can be seen from Figure 3, described axle sleeve flange 6 has truss 20 in the first side, and truss 20 subtend bearing 1 oil addition/lubricating grease forms obstruction. Traditional oil circuit as shown in Figure 2 is arranged, oil nozzle is arranged on the truss side of axle sleeve flange, owing to oil nozzle is surrounded by sprocket wheel, truss etc., causes needing being carried out by bearing lubricating oil/lubricating grease when supplementing, and compressor gun is difficult to close to oil nozzle. The truss side that therefore oil nozzle is arranged on axle sleeve flange is not preferred. As mentioned above, it is necessary, the truss side of the first side of axle sleeve flange and axle sleeve flange has identical implication, refer to the side of the end face towards truss 20 of axle sleeve flange 6.
As shown in Figure 3, the bearing-lubricating device of the present invention comprises the 3rd duct in the outside race 11 of the 2nd duct 5 on the first duct 4 in oil nozzle 2, insert 3, axle sleeve 10 and described bearing, like this, an oil circuit being connected is formed from the oil port of oil nozzle 2 to the rolling assembly 12 of bearing 1. As shown in Figure 5, oil nozzle 2 can be the oil nozzle shown in Fig. 5, it is also possible to be all kinds of oil nozzles that the art is commonly used, such as straight oil nozzle, round end formula oil nozzle, funnel formula oil nozzle, tuck formula oil nozzle, flat button oil nozzle etc. The advantage arranging the first duct 4 in an independent insert 3 is easily to change and clean, more convenient than arranging the first duct on described axle sleeve flange. Also be conducive to oil nozzle to install by suitable angle simultaneously, described suitable angle refers to the angle being applicable to manually injecting lubricating oil/lubricating grease to oil nozzle, such as, relative to the angle of in the first coordinate quadrant 20 �� to 80 �� of the medullary ray of axle sleeve 10, the angle being preferably 30 �� to 60 ��, is more preferably the angle of 45 ��. The 2nd duct 5 on axle sleeve 10 is arranged on the installation position place of bearing 1, and as shown in Figure 4, described 2nd duct 5 is through type duct, directly leads to the internal surface of axle sleeve from the outside surface of axle sleeve. As required, certainly the 2nd duct 5 is arranged with can being perpendicular to the medullary ray of axle sleeve 10, it is also possible to arrange angularly with it; And the 2nd duct 5 may not be through type, but the tortuous formula duct being made up of multistage passage. Main points are, first aperture in the 2nd duct 5 is connected directly or indirectly with the first duct 4, and its 2nd aperture is connected directly or indirectly with described 3rd duct. The outside race 11 of described bearing arranges the rolling assembly that bearing mainly delivered to by lubricating oil/lubricating grease by the 3rd duct, it is carried out good lubrication. Preferably, described 3rd duct is through type duct, and it radially leads to its internal surface from its outside surface along the outside race 11 of described bearing 1. Certainly, the 3rd duct of other form is also optional, suitably selects according to feasibility in implementation process by those skilled in the art.
Described oil nozzle 2 is arranged in described first duct 4. The benefit that oil nozzle 2 is arranged in described insert 3 is to be folded down together with insert 3 and carries out changing, clear up or safeguarding. For this reason, described first duct 4 is provided with internal thread, is fixed to described insert 3 to be screwed by oil nozzle 2. Can selection of land, the suitable position in described insert arranges outside screw, is fixed in described insert by the oil nozzle with internal thread so that described oil nozzle and described first duct keep oil communication. Described insert 3 links together with described axle sleeve flange 6, and the axle sleeve side that described insert 3 and oil nozzle 2 are arranged on described axle sleeve flange 6 just eliminates the disadvantage that the traditional oil circuit such as Fig. 2 is arranged, the personnel that maintain easily are to bearing supplemental lubrication oil/lubricating grease. It is consider that bearing is just arranged near axle sleeve flange that described insert 3 and described axle sleeve flange 6 link together, and can ensure that oil circuit length is shorter like this, conveniently add lubricating oil/lubricating grease. Important, described insert 3 and oil nozzle 2 are arranged on the axle sleeve side of described axle sleeve flange 6. Outside surface and the internal surface of described outside race 11 is run through in described 3rd duct, can ensure that lubricating oil/lubricating grease enters the space between described outside race 11 and described inside race 13 like this, be lubricated by rolling assembly 12 therebetween. Described rolling assembly 12 can be ball, roller, needle roller etc., it is possible to is single, double and many rows'. The bearing of suitable species and specification is selected according to the specification of supporting axle, the size etc. of transmission power by those skilled in the art.
Further, described first duct 4, the 2nd duct 5 form the oil circuit being connected with the 3rd duct, thus, the lubricating oil/lubricating grease injected by described oil nozzle 2 can arrive the internal surface of described outside race 11, and then is lubricated by described rolling assembly 12. Space between oil nozzle 2, first duct 4, the 2nd duct 5, the 3rd duct, outside race 11 and inside race 13 forms one article of unimpeded passage, and lubricating oil/lubricating grease can flow with not blocking. Certainly, connection between described each several part can be direct or indirectly, it is important that the optimizing of oil circuit length.
Preferably, the enforcement modification of the bearing-lubricating device according to the present invention, as shown in Figure 4, the cavity 7 that described bearing-lubricating device is included between described insert 3 and described axle sleeve flange 6 to be formed, and described first duct 4 and described 2nd duct 5 are connected together by described cavity 7. Such being provided with the oblique layout being beneficial to the first duct 4, the existence of cavity 7 ensure that the first duct 4 and described 2nd duct 5 alignment are more prone to, and reduces requirement on machining accuracy. By cavity 7 by the first duct 4 and described 2nd duct 5 indirect communication, take full advantage of the described dismountable advantage of insert 3.
Can selection of land, described first duct 4 is directly connected with the 2nd duct 5. Certainly, the diameter in the 2nd duct 5 in described first duct 4 can be different, and this is conducive to reducing the alignment precision requirement in described first duct 4 and the 2nd duct 5.
As modification, described cavity 7 is formed in described insert 3, or is formed in described axle sleeve flange 6, or is formed in both. Those skilled in the art select according to Rational Parameters such as the thickness of axle sleeve flange 6, the diameter of axle sleeve.
Advantageously, as shown in Figure 4 and Figure 5, axle sleeve flange 6 can be arranged like this with the connection relation of insert 3: is formed in described axle sleeve flange 6 and the cavity of described insert 3 shape complementarity, and described insert 3 is chimeric and is fixed in described cavity. Such layout makes oil circuit more close to the midplane of described bearing 1, and decreases the space, some position of described insert 3, and whole device seems comparatively attractive in appearance.
Can selection of land, described insert 3 is fixed on described axle sleeve flange 6 by the mode directly pasting the flat outer surface by described axle sleeve flange 6. It is comparatively suitable that this uses when the thickness of described axle sleeve flange 6 is less.
As shown in Figure 5, described insert 3 is by being bolted on described axle sleeve flange 6, and those skilled in the art also can use other suitable fixing meanss such as riveted joint, welding.
As the present invention bearing-lubricating device another implement modification, as shown in Figure 5, the outside race 11 of described bearing 1 has annular recesses 8, described annular recesses 8 by described 2nd duct 5 together with described 3rd duct indirect communication. Such setting effectively reduces the alignment precision requirement between described 2nd duct 5 and described 3rd duct so that installation requirement is loose.
In order to more fast, fully effectively lubricated by described rolling assembly, further, the number in described 3rd duct is greater than 1, and is evenly distributed in described outside race 11 circumferentially. As shown in Figure 5, described annular recesses 8 is arranged on the outside surface of described outside race, is positioned at the position of the midplane of bearing 1. 3rd duct number such as 2,3,4,6,8. The internal surface of described outside race 11 is radially-inwardly led in described multiple 3rd duct from the bottom of described annular recesses 8.
Optionally, described 2nd duct 5 is directly connected together with described 3rd duct. Certainly, it is advantageous that, the bore dia in described 2nd duct 5 and described 3rd duct can be different, and this is conducive to reducing alignment precision requirement.
Further, as another theme of the present invention, the present invention also relates to escalator or man conveyor belt, and described escalator or man conveyor belt comprise above-mentioned bearing-lubricating device and various enforcement modification thereof. As shown in Figure 3, described axle sleeve flange 6 is used as the installation structure of built-up type sprocket wheel 16 so that described built-up type sprocket wheel 16 links together with the transmission bearing assembly being made up of described axle sleeve 10 and described supporting axle 9. Described built-up type sprocket wheel 16 comprises the first sprocket wheel 17 and the 2nd sprocket wheel 18, and described first sprocket wheel 17 is used as to drive sprocket wheel, and the chain drive-belt with escalator or man conveyor belt is meshed, for transmitting motion and power; Described 2nd sprocket wheel 18 is used as ladder sprocket wheel or pedal sprocket, and step chain or the pedal chain with escalator or man conveyor belt is meshed, and will move with transmission of power to step or pedal. Described bearing-lubricating device is just arranged in described axle sleeve flange 6, axle sleeve 10 and bearing 1.
In sum, the design of the new oil gallery of the present invention is exactly the position changing oil nozzle, and designs an oil circuit being different from prior art for it. The oil circuit of the lubricating oil of escalator or man conveyor belt pedestal bearing, comprises on the duct of alignment bearings outer ring oil groove on the axle sleeve of main transmission, axle sleeve containing the insert of oil circuit and the oil nozzle that is fastened in insert.
The using method of the bearing-lubricating device of the present invention is as follows: the cavity that lubricating oil/lubricating grease is formed by the duct in oil nozzle, insert, insert and axle sleeve flange, and the duct on axle sleeve, oil groove on bearing outer ring enters Bearing inner, thus add for bearing or change lubricating oil/lubricating grease, improve the lubrication of bearing, extend bearing use properties and life-span.
Below the preferred specific embodiment of the present invention is described in detail. It is to be understood that the those of ordinary skill of this area just can make many modifications and variations according to the design design of the present invention without the need to creative work. Therefore; all technician in the art conceive, according to the design of the present invention, the technical scheme that can be obtained on the basis of existing technology by logical analysis, reasoning, or a limited experiment, all should within the scope of the present invention and/or by the determined protection domain of claim book.
Claims (11)
1. bearing-lubricating device, it is for the lubrication of escalator or the bearing (1) of the transmission of man conveyor belt, described bearing (1) comprises outside race (11), rolling assembly (12) and inside race (13), the inside race (13) of described bearing is installed in the 2nd journal body (91) of supporting axle, the outside race (11) of described bearing is installed in the first end of axle sleeve (10), and described first end has axle sleeve flange (6), it is characterised in that:
Described bearing-lubricating device comprises the 3rd duct in the outside race (11) of the 2nd duct (5) on the first duct (4) in oil nozzle (2), insert (3), axle sleeve (10) and described bearing;
Described oil nozzle (2) is arranged in described first duct (4); Described insert (3) and described axle sleeve flange (6) link together, and described insert (3) and described oil nozzle (2) are arranged on the axle sleeve side of described axle sleeve flange (6); Outside surface and the internal surface of described outside race (11) is run through in described 3rd duct;
And, described first duct (4), the 2nd duct (5) form the oil circuit being connected with the 3rd duct, thus, the lubricating oil injected by described oil nozzle (2) can arrive the internal surface of described outside race (11), and then is lubricated by described rolling assembly (12).
2. bearing-lubricating device according to claim 1, it is characterized in that, the cavity (7) that described bearing-lubricating device is included between described insert (3) and described axle sleeve flange (6) to be formed, and described first duct (4) and described 2nd duct (5) are connected together by described cavity (7).
3. bearing-lubricating device according to claim 1, it is characterised in that, described first duct (4) is directly connected with the 2nd duct (5).
4. bearing-lubricating device according to claim 2, it is characterised in that, described cavity (7) is formed in described insert (3), or is formed in described axle sleeve flange (6), or is formed in both.
5. bearing-lubricating device according to claim 1, it is characterized in that, described axle sleeve flange (6) is formed and the cavity of described insert (3) shape complementarity, and described insert (3) is chimeric and is fixed in described cavity.
6. bearing-lubricating device according to claim 1, it is characterised in that, described insert (3) is fixed on described axle sleeve flange (6) by the mode directly pasting the flat outer surface by described axle sleeve flange (6).
7. bearing-lubricating device according to any one of the claims 1 to 6, it is characterized in that, the outside race (11) of described bearing (1) has annular recesses (8), described annular recesses (8) by described 2nd duct (5) together with described 3rd hole link.
8. bearing-lubricating device according to the claims 7, it is characterised in that, the number in described 3rd duct is greater than 1, and is evenly distributed in described outside race (11) circumferentially.
9. bearing-lubricating device according to any one of the claims 1 to 6, it is characterised in that, described 2nd duct (5) and described 3rd duct are directly connected together.
10. escalator, it is characterised in that, described escalator comprises by the bearing-lubricating device according to any one of the claims 1 to 9.
11. man conveyor belts, it is characterised in that, described man conveyor belt comprises by the bearing-lubricating device according to any one of the claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323270.7A CN103671557B (en) | 2012-09-04 | 2012-09-04 | Bearing-lubricating device and the escalator or the man conveyor belt that comprise it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210323270.7A CN103671557B (en) | 2012-09-04 | 2012-09-04 | Bearing-lubricating device and the escalator or the man conveyor belt that comprise it |
Publications (2)
| Publication Number | Publication Date |
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| CN103671557A CN103671557A (en) | 2014-03-26 |
| CN103671557B true CN103671557B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210323270.7A Active CN103671557B (en) | 2012-09-04 | 2012-09-04 | Bearing-lubricating device and the escalator or the man conveyor belt that comprise it |
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| CN (1) | CN103671557B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141699A (en) * | 2014-07-16 | 2014-11-12 | 金丰（宁波）精密机械科技有限公司 | Installation method for transmission case bearing lubrication mechanism |
| CN108708938B (en) * | 2018-05-04 | 2023-09-29 | 泰兴市神力链条有限公司 | Self-lubricating chain |
| CN109502464A (en) * | 2018-12-20 | 2019-03-22 | 杭州斯沃德电梯有限公司 | A kind of main drive of escalator |
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|---|---|---|---|---|
| US4064986A (en) * | 1976-04-30 | 1977-12-27 | Westinghouse Electric Corporation | Escalator having guide wheels and guide track with cooperative non-flat surfaces |
| CN1105801A (en) * | 1993-03-18 | 1995-07-26 | 巴马格股份公司 | Antifriction bearing |
| CN101093047A (en) * | 2007-06-26 | 2007-12-26 | 江苏永钢集团有限公司 | Lubrication structure of support roller bearing in drawing straightening machine |
| CN101633472A (en) * | 2009-05-22 | 2010-01-27 | 苏州新达电扶梯部件有限公司 | Escalator drive device |
| CN201679944U (en) * | 2009-11-19 | 2010-12-22 | 杭州杰牌传动科技有限公司 | Bearing lubricant circuit of input axis of rectangular axis gearbox |
| CN202864646U (en) * | 2012-09-04 | 2013-04-10 | 江南嘉捷电梯股份有限公司 | Bearing lubrication device and escalator including the same or moving walk including the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1015913A3 (en) * | 2004-02-23 | 2005-11-08 | Atlas Copco Airpower Nv | Machine with improved bearing lubrication. |
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2012
- 2012-09-04 CN CN201210323270.7A patent/CN103671557B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064986A (en) * | 1976-04-30 | 1977-12-27 | Westinghouse Electric Corporation | Escalator having guide wheels and guide track with cooperative non-flat surfaces |
| CN1105801A (en) * | 1993-03-18 | 1995-07-26 | 巴马格股份公司 | Antifriction bearing |
| CN101093047A (en) * | 2007-06-26 | 2007-12-26 | 江苏永钢集团有限公司 | Lubrication structure of support roller bearing in drawing straightening machine |
| CN101633472A (en) * | 2009-05-22 | 2010-01-27 | 苏州新达电扶梯部件有限公司 | Escalator drive device |
| CN201679944U (en) * | 2009-11-19 | 2010-12-22 | 杭州杰牌传动科技有限公司 | Bearing lubricant circuit of input axis of rectangular axis gearbox |
| CN202864646U (en) * | 2012-09-04 | 2013-04-10 | 江南嘉捷电梯股份有限公司 | Bearing lubrication device and escalator including the same or moving walk including the same |
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| CN103671557A (en) | 2014-03-26 |
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Effective date of registration: 20180515 Address after: 215122 28 Weixin Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Jiangnan Jiajie Lift Co., Ltd., Jiangsu Address before: 215122 No. 718 Ting Ting Road, Suzhou Industrial Park, Jiangsu Patentee before: SJEC Corporation |