CN103671557A - Bearing lubricating device and escalator or moving walk comprising same - Google Patents
Bearing lubricating device and escalator or moving walk comprising same Download PDFInfo
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- CN103671557A CN103671557A CN201210323270.7A CN201210323270A CN103671557A CN 103671557 A CN103671557 A CN 103671557A CN 201210323270 A CN201210323270 A CN 201210323270A CN 103671557 A CN103671557 A CN 103671557A
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Abstract
The invention relates to a bearing lubricating device which is used for lubricating a bearing (1) which is applicable to driving transmission of an escalator or a moving walk. The bearing (1) comprises an outer ring (11), a rolling assembly (12) and an inner ring (13), wherein the bearing lubricating device comprises an oil nipple (2), a first hole channel (4) on an embedded block (3), a second hole channel (5) on a bearing sleeve (10) and a third hole channel on the outer ring of the bearing; the first hole channel (4), the second hole channel (5) and the third hole channel form an interconnected oil path, and thus lubricating oil which is injected from the oil nipple (2) can reach the inner surface of the outer ring (11) and further lubricate the rolling assembly (12). According to the bearing lubricating device, the technical effects of adding or replacing the lubricating oil in the bearing conveniently, improving the lubrication of the bearing, enhancing the using performance of the bearing and prolonging the service life of the bearing can be achieved. The invention also relates to an escalator or a moving walk comprising the bearing lubricating device.
Description
Technical field
The present invention relates to bearing-lubricating device, it is for the drive bearing of escalator or moving sideway, especially main transmission bearing, and described bearing-lubricating device carries out architecture advances (F16N 1/00) for lubricated object to a part for escalator or moving sideway.And the invention still further relates to the escalator or the moving sideway that comprise described bearing-lubricating device.
Background technique
The block bearing of escalator or moving sideway adopts non-lubricating mode conventionally.But, for the higher environment of temperature, due to lubricant grease can be along with the rising of temperature constantly deliquescing and loss, thereby affect the lubricated of bearing, cause bearing heating, generation noise etc., even cause the stuck serious consequence of bearing.
Traditional oil cake arrange as depicted in figs. 1 and 2, because oil nozzle 3 is surrounded by sprocket wheel 1, truss 2 etc., while causing need to bearing 4 being lubricated oil subsidy and being filled, nozzle be difficult to approach oil nozzle 1.
Patent documentation No.CN200580010960.5 discloses a kind of machine that improves bearing lubrication that has, and in Fig. 2-5, can find out, lubricating oil path 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, has the oil inlet hole that cavity between oil input channel and clutch shaft bearing, the second bearing is communicated with on described bearing housing.
Patent documentation No.CN201120179812.9 discloses the circulating lubrication oil circuit in a kind of car transmissions, and wherein, the outer ring of double-row angular contact bal bearing is provided with radial direction oil hole and along the annular groove B of hole inwall circumference, this oilhole aligns with annular groove B.
Patent documentation No.CN200710023904.6 discloses the lubricating structure of the support roller bearing in drawing straightening machine that a kind of lubricating status is good, comprise bearing support and bearing, in the bottom of bearing support, be provided with the lower passage communicating with bearing oil groove in bearing, on the top of bearing support, be provided with the upper channel communicating with bearing oil groove in bearing, and be provided with bolt plug in the outlet port of lower passage.
Yet above-mentioned prior art cannot be applied to escalator or moving sideway technical field completely, can not solve the problems of the technologies described above completely.
Summary of the invention
Main purpose of the present invention is to propose the technological scheme solve the problems of the technologies described above, reach facilitate bearing to add or more oil change, improve bearing lubricated, extend bearing usability and the technique effect in life-span.
For this reason, the present invention proposes bearing-lubricating device, lubricating of its bearing for the supporting axle of escalator or moving sideway, described bearing comprises outer collar, rolling assembly and inside race, the inside race of described bearing is installed in the second journal body of described supporting axle, the outer collar of described bearing is installed in the first end of axle sleeve, and described first end has axle sleeve flange, it is characterized in that:
Described bearing-lubricating device comprises oil nozzle, the 3rd duct in the outer collar of the first duct, the second duct on axle sleeve and described bearing on inserting;
Described oil nozzle is arranged in described the first duct; Described inserting links together with described axle sleeve flange, and described inserting is arranged on to the axle sleeve side of described axle sleeve flange with oil nozzle; Outer surface and the internal surface of described outer collar run through in described the 3rd duct;
And described the first duct, the second duct and the 3rd duct form the oil circuit being communicated with, thereby the lubricant oil being injected by described oil nozzle can arrive the internal surface of described outer collar, and then described rolling assembly is lubricated.
Technique scheme facilitated attendant to bearing add or more oil change/lubricant grease, improved bearing lubricate, extended bearing usability and life-span.
The invention still further relates to escalator or moving sideway, it is characterized in that, described escalator or moving sideway comprise bearing-lubricating device of the present invention or its enforcement modification.Escalator after improvement or moving sideway are extended working life, thereby effectively cut operating costs.
Accompanying drawing explanation
With reference to accompanying drawing, the description of feature of the present invention, advantage and the characteristic embodiment by is below able to better understanding, in accompanying drawing:
Installation and the supporting structure of the Combined chain wheel that Fig. 1 illustrates escalator or moving sideway on supporting axle, is wherein used traditional oil cake arrange.
Fig. 2 is the A district partial enlarged drawing of Fig. 1, traditional oil cake arrange shown in it.
Installation and the supporting structure of the Combined chain wheel of Fig. 3 escalator or moving sideway on supporting axle, is wherein used bearing-lubricating device of the present invention.
Fig. 4 is the B district partial enlarged drawing of Fig. 2, bearing-lubricating device of the present invention shown in it.
Fig. 5 is the exploded perspective view of bearing-lubricating device of the present invention.
In the accompanying drawings, different elements is used different figure notations, and identical element is used identical figure notation, wherein,
1 bearing
2 oil nozzles
3 insert
4 first ducts
5 second ducts
6 axle sleeve flanges
7 cavitys
8 annular grooves
9 supporting axles
10 axle sleeves
11 outer collar
12 rolling assemblies
13 inside races
16 Combined chain wheels
17 first sprocket wheels
18 second sprocket wheels
20 truss
91 second 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 a side of the end face towards truss 20 of axle sleeve flange 6; The second side of axle sleeve flange and the axle sleeve side of axle sleeve flange have identical implication, refer to a side of the end face towards axle sleeve 10 of axle sleeve flange 6.
Embodiment
With reference to Fig. 4, according to main embodiment of the present invention, bearing-lubricating device of the present invention is lubricated for the bearing 1 of the supporting axle 9 of escalator or moving sideway, described bearing 1 comprises outer collar 11, rolling assembly 12 and inside race 13, the inside race 13 of described bearing is installed in the second journal body 91 of described supporting axle, the outer collar 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, as the mounting structure of Combined chain wheel 16, links together described Combined chain wheel 16 and the transmission bearing assembly being comprised of described axle sleeve 10 and described supporting axle 9.Described Combined chain wheel 16 comprises the first sprocket wheel 17 and the second sprocket wheel 18, and described the first sprocket wheel 17 is used as driving sprocket wheel, and is meshed with the chain drive-belt of escalator or moving sideway, for transmitting motion and power; Described the second sprocket wheel 18 is used as step chain sprocket or pedal sprocket, and is meshed with step chain or the pedal chain of escalator or moving sideway, 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 bearings 1 add lubricant oil/lubricant grease formation obstruction.Traditional oil cake arrange as shown in Figure 2, oil nozzle is arranged on the truss side of axle sleeve flange, and because oil nozzle is surrounded by sprocket wheel, truss etc., while causing need to bearing being lubricated oil/lubricant grease and being supplemented, nozzle be difficult to approach oil nozzle.Therefore the truss side that oil nozzle is arranged on to axle sleeve flange is not preferred.As mentioned above, the first side of axle sleeve flange and the truss side of axle sleeve flange have identical implication, refer to a side of the end face towards truss 20 of axle sleeve flange 6.
As shown in Figure 3, bearing-lubricating device of the present invention comprises oil nozzle 2, the 3rd duct in the outer collar 11 of insert the first duct 4, the second duct 5 on axle sleeve 10 and described bearing on 3, like this, from the oil filler of oil nozzle 2 to the oil circuit that forms a connection the rolling assembly 12 of bearing 1.As shown in Figure 5, oil nozzle 2 can be the oil nozzle shown in Fig. 5, can be also the conventional all kinds of oil nozzles of the art, such as straight oil nozzle, round end formula oil nozzle, funneling oil nozzle, tuck formula oil nozzle, flat button oil nozzle etc.An independent advantage that the first duct 4 is set on 3 of inserting, be easily to change and clean, more convenient than the first duct is set on described axle sleeve flange.Also be conducive to oil nozzle installs by suitable angle simultaneously, described suitable angle refers to the angle that is applicable to manually injecting to oil nozzle lubricant oil/lubricant grease, for example, the angle of 20 ° to 80 ° with respect to the center line of axle sleeve 10 in the first coordinate quadrant, be preferably the angle of 30 ° to 60 °, be more preferably the angle of 45 °.The second duct 5 on axle sleeve 10 is arranged on the place, installation position of bearing 1, and as shown in Figure 4, described the second duct 5 is straight-through type ducts, directly leads to the internal surface of axle sleeve from the outer surface of axle sleeve.Certainly as required, the second duct 5 can perpendicular to the center line of axle sleeve 10 arrange, also can arrange angularly with it; And the second duct 5 can not be also straight-through type, but the dioptric type duct being formed by multistage passage.Main points are that first aperture in the second duct 5 is communicated with directly or indirectly with the first duct 4, and its second aperture is communicated with directly or indirectly with described the 3rd duct.It is mainly lubricant oil/lubricant grease to be delivered to the rolling assembly of bearing that the 3rd duct is set in the outer collar 11 of described bearing, and it is carried out to good lubrication.Preferably, described the 3rd duct is straight-through type duct, and its outer collar 11 along described bearing 1 is radially led to its internal surface from its outer surface.Certainly, the 3rd duct of other form is also optional, by those skilled in the art, in implementation process, according to feasibility, is suitably selected.
Described oil nozzle 2 is arranged in described the first duct 4.The favourable part of inserting described in oil nozzle 2 is arranged on 3 is 3 to be folded down together change, clear up or safeguard with inserting.For this reason, described the first duct 4 is provided with internal thread, to oil nozzle 2 is screwed described in being fixed to and inserts 3.Alternatively, at the described suitable position of inserting, outside thread is set, described in the female oil nozzle of tool is fixed to, inserts upper, make described oil nozzle keep oil circuit to be communicated with described the first duct.Described inserting 3 links together with described axle sleeve flange 6, and the described 3 axle sleeve sides that are arranged on described axle sleeve flange 6 with oil nozzle 2 of inserting have just been eliminated as the disadvantage of traditional oil cake arrange of Fig. 2, and the personnel that maintain easily are to bearing make-up oil/lubricant grease.Described insert 3 and described axle sleeve flange 6 to link together be to consider that bearing is just arranged near axle sleeve flange, can guarantee that like this oil circuit length is shorter, facilitate lubricating oil filling/lubricant grease.Importantly, described inserting 3 is arranged on to the axle sleeve side of described axle sleeve flange 6 with oil nozzle 2.Outer surface and the internal surface of described outer collar 11 run through in described the 3rd duct, can guarantee that like this lubricant oil/lubricant grease enters the space between described outer collar 11 and described inside race 13, and rolling assembly 12 is therebetween lubricated.Described rolling assembly 12 can be ball, roller, needle roller etc., can be single, double and many rows.By those skilled in the art, according to the size of the specification of supporting axle, transferring power etc., selected the bearing of suitable species and specification.
And described the first duct 4, the second duct 5 and the 3rd duct form the oil circuit being communicated with, thereby the lubricant oil/lubricant grease being injected by described oil nozzle 2 can arrive the internal surface of described outer collar 11, and then described rolling assembly 12 is lubricated.Space between oil nozzle 2, the first duct 4, the second duct 5, the 3rd duct, outer collar 11 and inside race 13 forms a unimpeded passage, and lubricant oil/lubricant grease can not flow with blocking.Certainly, the connection between described each several part can be directly or indirectly, importantly the optimization of oil circuit length.
Preferably, according to the enforcement modification of bearing-lubricating device of the present invention, as shown in Figure 4, described in described bearing-lubricating device is included in, insert 3 and described axle sleeve flange 6 between the cavity 7 that forms, and described cavity 7 is connected together described the first duct 4 and described the second duct 5.Like this be provided with the oblique layout that is beneficial to the first duct 4, the existence of cavity 7 has guaranteed that the first duct 4 and described the second duct 5 are aimed at and has been more prone to, reduced requirement on machining accuracy.By cavity 7 by the first duct 4 and described the second duct 5 indirect communication, the 3 dismountable advantages of inserting described in taking full advantage of.
Alternatively, described the first duct 4 is directly communicated with the second duct 5.Certainly, the diameter in second duct 5 in described the first duct 4 can be different, and this is conducive to reduce the alignment precision requirement in described the first duct 4 and the second duct 5.
As modification, described cavity 7 forms in 3 described inserting, or forms in described axle sleeve flange 6, or forms in both.Those skilled in the art are selected according to the Rational Parameters such as diameter of the thickness of axle sleeve flange 6, axle sleeve.
Advantageously, as shown in Figure 4 and Figure 5, axle sleeve flange 6 can arrange like this with 3 the annexation of inserting: in described axle sleeve flange 6, be formed with the cavity with described 3 shape complementarities of inserting, and described in insert 3 chimeric and be fixed in described cavity.Such layout makes oil circuit more approach the midplane of described bearing 1, and 3 the some bit space of inserting described in having reduced, and it is comparatively attractive in appearance that whole device seems.
Alternatively, described in, insert and 3 by the mode of the flat outer surface of the described axle sleeve flange 6 that directly reclines, be fixed on described axle sleeve flange 6.It is comparatively suitable that this uses under the less situation of the thickness of described axle sleeve flange 6.
As shown in Figure 5, described in insert and 3 can be bolted on described axle sleeve flange 6, those skilled in the art also can use other suitable fixation methods such as riveted joint, welding.
As another of bearing-lubricating device of the present invention, implement modification, as shown in Figure 5, in the outer collar 11 of described bearing 1, there is annular groove 8, described annular groove 8 by described the second duct 5 together with described the 3rd duct indirect communication.Such setting effectively reduces the alignment precision requirement between described the second duct 5 and described the 3rd duct, makes installation requirement loose.
For more fast, fully effectively described rolling assembly is lubricated, further, the number in described the 3rd duct is greater than 1, and is evenly distributed on the circumference of described outer collar 11.As shown in Figure 5, described annular groove 8 is arranged on the outer surface of described outer collar, is positioned at the position of the midplane of bearing 1.For example 2,3,4,6,8 of the 3rd duct numbers.The internal surface of described outer collar 11 is radially inwardly led in described a plurality of the 3rd duct from the bottom of described annular groove 8.
Optionally, described the second duct 5 is directly connected together with described the 3rd duct.Certainly, advantageously, described the second duct 5 can be different from the bore dia in described the 3rd duct, and this is conducive to reduce alignment precision requirement.
Further, as another theme of the present invention, the invention still further relates to escalator or moving sideway, described escalator or moving sideway comprise above-mentioned bearing-lubricating device and various enforcement modification thereof.As shown in Figure 3, described axle sleeve flange 6, as the mounting structure of Combined chain wheel 16, links together described Combined chain wheel 16 and the transmission bearing assembly being comprised of described axle sleeve 10 and described supporting axle 9.Described Combined chain wheel 16 comprises the first sprocket wheel 17 and the second sprocket wheel 18, and described the first sprocket wheel 17 is used as driving sprocket wheel, and is meshed with the chain drive-belt of escalator or moving sideway, for transmitting motion and power; Described the second sprocket wheel 18 is used as step chain sprocket or pedal sprocket, and is meshed with step chain or the pedal chain of escalator or moving sideway, 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 new lubricating oil path of the present invention is exactly the position that changes oil nozzle, and designs for it an oil circuit that is different from prior art.The oil circuit of the lubricant oil of escalator or moving sideway block bearing, comprises inserting and being fastened on the oil nozzle on inserting containing oil circuit on the duct, axle sleeve of alignment bearings outer ring oil groove on the axle sleeve of main transmission.
The using method of bearing-lubricating device of the present invention is as follows: the duct of lubricant oil/lubricant grease by oil nozzle, on inserting, insert and cavity that axle sleeve flange forms, and the duct on axle sleeve, oil groove on bearing outer ring enters bearing inside, thereby for bearing adds or oil change/lubricant grease more, improve the lubricated of bearing, extend bearing usability and life-span.
More than describe preferred specific embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just can design concept according to the present invention make many modifications and variations without creative work.Therefore; all technician in the art according to design concept of the present invention on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be within the scope of the present invention and/or by the determined protection domain of claims.
Claims (10)
1. bearing-lubricating device, lubricating of its bearing of using for the transmission of escalator or moving sideway (1), described bearing (1) comprises outer collar (11), rolling assembly (12) and inside race (13), the inside race of described bearing (13) is installed in second journal body (91) of described supporting axle, the outer collar of described bearing (11) is installed in the first end of axle sleeve (10), and described first end has axle sleeve flange (6), it is characterized in that:
Described bearing-lubricating device comprises oil nozzle (2), the 3rd duct in the outer collar (11) of insert the first duct (4), the second duct (5) on axle sleeve (10) and described bearing on (3);
Described oil nozzle (2) is arranged in described the first duct (4); Described inserting (3) and described axle sleeve flange (6) link together, and will described in insert (3) and described oil nozzle (2) be arranged on the axle sleeve side of described axle sleeve flange (6); Outer surface and the internal surface of described outer collar (11) run through in described the 3rd duct;
And, described the first duct (4), the second duct (5) and the 3rd duct form the oil circuit being communicated with, thereby the lubricant oil being injected by described oil nozzle (2) can arrive the internal surface of described outer collar (11), and then described rolling assembly (12) is lubricated.
2. bearing-lubricating device according to claim 1, it is characterized in that, described in described bearing-lubricating device is included in, insert (3) and described axle sleeve flange (6) between the cavity (7) that forms, and described cavity (7) is connected together described the first duct (4) and described the second duct (5).
3. bearing-lubricating device according to claim 1, is characterized in that, described the first duct (4) is directly communicated with the second duct (5).
4. bearing-lubricating device according to claim 2, is characterized in that, described cavity (7) forms in described inserting (3), or forms in described axle sleeve flange (6), or forms in both.
5. bearing-lubricating device according to claim 1, is characterized in that, is formed with the cavity with described inserting (3) shape complementarity in described axle sleeve flange (6), and described in insert (3) chimeric and be fixed in described cavity.
6. bearing-lubricating device according to claim 1, is characterized in that, described in insert (3) by the mode of the flat outer surface of the described axle sleeve flange (6) that directly reclines, be fixed on described axle sleeve flange (6).
7. according to the bearing-lubricating device described in any one in the claims 1 to 6, it is characterized in that, in the outer collar (11) of described bearing (1), there is annular groove (8), described annular groove (8) by described the second duct (5) together with described the 3rd hole link.
8. according to the bearing-lubricating device described in the claims 7, it is characterized in that, the number in described the 3rd duct is greater than 1, and is evenly distributed on the circumference of described outer collar (11).
9. according to the bearing-lubricating device described in any one in the claims 1 to 6, it is characterized in that, described the second duct (5) is directly connected together with described the 3rd duct.
10. escalator or moving sideway, is characterized in that, described escalator or moving sideway comprise by the bearing-lubricating device described in any one in 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 |
|---|---|
| CN103671557A true CN103671557A (en) | 2014-03-26 |
| CN103671557B 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671557B (en) |
Cited By (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 |
| CN108708938A (en) * | 2018-05-04 | 2018-10-26 | 泰兴市神力链条有限公司 | A kind of oil-free 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 |
| US20070177835A1 (en) * | 2004-02-23 | 2007-08-02 | Verhaegen Ken G H | Machine with an improved bearing lubrication |
| 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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2012
- 2012-09-04 CN CN201210323270.7A patent/CN103671557B/en active Active
Patent Citations (7)
| 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 |
| US20070177835A1 (en) * | 2004-02-23 | 2007-08-02 | Verhaegen Ken G H | Machine with an improved bearing lubrication |
| 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 |
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| 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 |
Cited By (4)
| 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 |
| CN108708938A (en) * | 2018-05-04 | 2018-10-26 | 泰兴市神力链条有限公司 | A kind of oil-free chain |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671557B (en) | 2016-06-08 |
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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 |
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