CN102704196B - Rod bearing lubricating mechanism with improved structure for needling machine - Google Patents
Rod bearing lubricating mechanism with improved structure for needling machine Download PDFInfo
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- CN102704196B CN102704196B CN201210167739.2A CN201210167739A CN102704196B CN 102704196 B CN102704196 B CN 102704196B CN 201210167739 A CN201210167739 A CN 201210167739A CN 102704196 B CN102704196 B CN 102704196B
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Abstract
A rod bearing lubricating mechanism with improved structure for a needling machine belongs to the field of nonwoven machinery. The needling machine comprises a main shaft having an eccentric cam and a rod arranged on the main shaft. The rod bearing lubricating mechanism comprises a first lubricant pipe plinth having a first lubricant inlet interface and a first lubricant outlet interface; a second lubricant pipe plinth having a second lubricant inlet interface and a second lubricant duct; a third lubricant duct arranged on a rod bearing cover; a lubricant thrower including a pair of lubricant throwing supporters and a pair of lubricant throwing caps; and a lubricant collection tank fixed with a frame of the needling machine and having a lubricant barrier plate fixed on it. A lubricant hole is formed at one end of the third lubricant duct, and a lubricant drainage chamber is formed at the other end of the third lubricant duct and is communicated with a bearing lubricant chamber. The bearing lubricant chamber is arranged between the rod bearing and the rod bearing cover, and is communicated with a lubricant leakage chamber. The lubricant leakage chamber is arranged between a main shaft sealing cover and the rod bearing cover. The lubricant leakage chamber is communicated with a lubricant leakage duct. The invention can lower operation intensity, improve working efficiency, ensure operation efficiency of needling machines, and guarantee service life of connecting bearings.
Description
Technical field
the invention belongs to field of non-weaving textile machinery technology, be specifically related to a kind of crankpin bearing lubrication mechanism that improves the needing machine of structure.
Background technology
as is known in the industry, needing machine has one and is bearing in rotationally main shaft on the wall body of corresponding both sides of main spindle box body and that one end and power drive mechanism are in transmission connection, on main shaft, be provided with eccentric wheel (also claiming eccentric cam), on eccentric wheel, by the sheathed connecting rod of bearing (this bearing custom be called the connecting-rod bearing), and be equipped with respectively with right side the left and right bearing cap being connected with bearing in the left side of bearing.When power drive mechanism is worked, drive main shaft rotation, thereby drivening rod moves up and down, and is driven the guide pillar being connected with connecting rod to move up and down by moving up and down of connecting rod.Because the lower end at guide pillar is fixedly connected with needle-bar, and needle-bar towards under a side be fixed with needle plate, on needle plate, be furnished with pricker, in the process therefore moving up and down at guide pillar, needle-bar is moved up and down, needle plate, with example, closes thereby make entanglement thorn by thorn for on-woven fiber.
the TECHNICAL INFORMATION SOURCES of the needing machine of said structure form is no lack of and is seen in published Chinese patent literature, " Dislocation felting needle felting machine " recommended as Granted publication CN2421298Y to exemplify slightly, " tease needle machine " that CN2617795Y provides, " needle machine for endless felts " that CN201915224U discloses, " Non-endpoint needling machine " that publication No. CN102373579A introduces, " endpoint-free industrial felt needle machine " that CN101122067A discloses, " joint-free industrial felt needle machine " that CN101122068A disclosed " joint-free industrial felt needle machine of tool four needle regions acupuncture " and CN101122069A are public all, etc..
the movement velocity of needing machine is that acupuncture speed is higher; the amount of the on-woven product of producing in the unit interval is larger; the needing machine of acupuncture speed more than 1000n/min is not rarely seen at present; this is undoubtedly Gospel for on-woven production manufacturer; but the lubricant effect of the connecting-rod bearing must be in shape in the course of the work for needing machine; otherwise the connecting-rod bearing is easily swollen dead because of heating, causes shutdown, this is to use needing machine to produce the technical problem of on-woven product manufacturer concern.
at present before present patent application proposes, the use manufacturer of needing machine can only with regular or irregular maintenance mode and under stopped status to connecting-rod bearing make-up oil, there is following shortcoming in this mode: one, during to connecting-rod bearing make-up oil, need to be covered by the above mentioned left bearing lid of plant maintenance personnel removal and right bearing, to the connecting-rod bearing repairing after completing, more left and right bearing cap is returned, so attendant's operation intensity is large and inefficiency; Its two, because the repairing maintenance to the connecting-rod bearing is to carry out under the stopped status in needing machine, thereby affect the operating efficiency of needing machine; Its three, if be negligent of in time to connecting-rod bearing makeup oil, once occur that so bearing damages, change that time that bearing spends is tediously long and quantities is larger, affect the manufacturing schedule of on-woven product; Its four, because being artificially gives connecting-rod bearing make-up oil, therefore the difference along with attendant's's (or claiming mechanician) sense of responsibility and experience etc. can produce different maintaining effects.
in view of above-mentioned prior art, the applicant has done deeply and literature search widely, but in published China and foreign countries patent and non-patent literature, is being showed no all enlightenments that is overcome above-mentioned technical problem that has up to now.For this reason, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
task of the present invention is to provide a kind of contributing to automatically to connecting-rod bearing regular replenishment lubricating oil, to use and alleviate attendant's operation intensity and improve maintenance efficiency, be conducive to ensure under needing machine in working order connecting-rod bearing make-up oil is used to the operating efficiency of avoiding affecting needing machine, be of value to and guarantee the service life of the connecting-rod bearing and use the crankpin bearing lubrication mechanism that prevents from damaging and having because of heating the needing machine of being good at getting rid of the improvement structure be affected by human factors the effect that ensures make-up oil.
task of the present invention completes like this, a kind of crankpin bearing lubrication mechanism that improves the needing machine of structure, described needing machine comprises having the main shaft of eccentric cam and be located at connecting rod on main shaft and that match with eccentric cam by the connecting-rod bearing, wherein: the both sides at the described connecting-rod bearing are respectively equipped with a connecting rod bearing cap, and pair of links bearing cap and the connecting-rod bearing are fixed together, described crankpin bearing lubrication mechanism comprises the one first oil connection seat being fixed on described connecting rod, this the first oil connection seat has one first oil-feed interface and one first oil out port, first enters, between oil out port, by the first oil duct that is opened in the inside of the first oil connection seat, communicated, one is fixed on appointing in described pair of links bearing cap selects the second oil connection seat that a connecting-rod bearing covers, this the second oil connection seat has one second oil-feed interface and one second oil duct, the second oil-feed interface is connected with the first described oil out port by oil pipe, and communicates with the second oil duct, be opened in and be fixed with one the 3rd oil duct that the connecting-rod bearing of described the second oil connection seat covers, the 3rd oil duct forms and has an oilhole towards one end of the second oil connection seat, this oilhole communicates with described the second oil duct, and the 3rd oil duct has a draining chamber towards one end of the described connecting-rod bearing formation, this draining chamber communicates with bearing oil pocket, bearing oil pocket is between the connecting-rod bearing and connecting rod bearing cap, and the leakage of oil gap road that this bearing oil pocket covers through the connecting-rod bearing communicates with leakage of oil chamber, leakage of oil chamber is between main shaft seal lid and connecting rod bearing cap, and this leakage of oil chamber be opened in the leakage of oil road that the connecting-rod bearing covers and communicate, one oil thrower, this oil thrower comprises and a pair ofly gets rid of oily leg and a pair ofly get rid of oily cap, this gets rid of oily leg and is fixedly connected with one of them connecting rod bearing cap in described pair of links bearing cap getting rid of one of them in oily leg, and another gets rid of oily leg and is fixedly connected with another connecting rod bearing cap, and a pair of getting rid of respectively offers one on oily leg and gets rid of oil duct, get rid of oil duct corresponding with described leakage of oil road and communicate, a pair of one of them of getting rid of in oily cap got rid of oily cap and is fixed on the end that a pair of one of them of getting rid of in oily leg got rid of oily leg, one for oil thrower is covered protect and for collecting the oil sump tank of the lubricating oil being thrown away by oil thrower, this oil sump tank is fixed in the position of the oil thrower corresponding to described and the frame of needing machine, and on described oil sump tank, be fixed with an oil baffle, this oil baffle is described a pair of getting rid of between oily leg, and with described a pair of to get rid of oily cap corresponding.
in a specific embodiment of the present invention, the lower end of described connecting rod has a link pin spindle nose, is equipped with the little axis clamping screw of a connecting rod on this link pin spindle nose, and the first described oil connection seat is fixed on link pin spindle nose by the first screw.
in another specific embodiment of the present invention, described oil pipe is the flexible nonmetallic tubing with compliance, and the first described oil-feed interface is connected with fueller pipeline, and described fueller is oil pump.
in another specific embodiment of the present invention, described a pair of position of getting rid of oily cap is mutually corresponding.
in another specific embodiment of the present invention, described a pair of shape of getting rid of oily cap is all horn-like.
technical scheme provided by the invention is introduced lubricating oil automatically by the first oil-in, lubricating oil enters bearing oil pocket to crankpin bearing lubrication through the first oil out port, oil pipe, the second oil-feed interface, the second oil duct, oilhole, the 3rd oil duct and draining chamber successively, the lubricating oil of redundancy gets rid of into oil sump tank by oil thrower through leakage of oil gap road, leakage of oil chamber and leakage of oil road successively from bearing oil pocket, therefore can under needing machine duty, with automated manner, to the connecting-rod bearing, provide lubricating oil, both can alleviate plant maintenance personnel's operation intensity, can increase work efficiency again; Due to can be at fuel feeding under stopped status not, thereby can guarantee the operating efficiency of needing machine; Owing to not being affected by human factors, thereby lubricating oil supplementary result is good and can ensure service life of connection bearing.
Accompanying drawing explanation
fig. 1 is cutaway view of the present invention.
fig. 2 is the detailed structure view of the main shaft shown in Fig. 1, connecting rod and pair of links bearing cap.
fig. 3 is application examples schematic diagram of the present invention.
The specific embodiment
for the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but to the description of embodiment, be not all the restriction to the present invention program, any according to the present invention design, done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
refer to Fig. 1 and Fig. 2, provided a main shaft 1 of needing machine, under use state, this main shaft 1 is bearing on the bearing block 13 of main spindle box body of needing machine (Fig. 1 shows) rotationally, and according to known technology, main shaft 1 is in transmission connection with the power drive mechanism of needing machine.On the axis body of main shaft 1, be installed with or one forms and to have eccentric cam 11, on eccentric cam 11, also form and have pair of bearings annular groove 111, this to bearing annular groove 111 for setting bearing snap ring 1111 as shown in Figure 1.
the upper end of one connecting rod 2 is provided on aforesaid eccentric cam 11 by the connecting-rod bearing 21, and the lower end of connecting rod 2 formation has a link pin spindle nose 23, in the time will making needle-bar 8 be connected with link pin spindle nose 23, in the connecting shaft hole 232 that the connecting axle of axle bed 9 91 is inserted on link pin spindle nose 23, and the little axis clamping screw 231 of connecting rod is screwed, to ensure the effect that is connected of connecting axle 91 and link pin spindle nose 23, needle-bar 8 passes through the second screw 81 and is connected with axle bed 9.
shown in figure, the both sides of the aforesaid connecting-rod bearing 21 are respectively furnished with a connecting rod bearing cap 22, that is to say that connecting rod bearing cap 22 has a pair of, with one group of the 3rd screw 226, by the connecting-rod bearing of connecting rod bearing cap 22 and the connecting-rod bearing 21 both sides, fixedly lug 211 is fixing, thereby makes pair of links bearing cap 22 and the connecting-rod bearing 21 threes form as a whole.Certainly, the connecting-rod bearing 21 and pair of links bearing cap 22 are provided on aforesaid eccentric cam 11, and the bearing snap ring 1111(being illustrated by Fig. 1 is a pair of) in the position of bearing annular groove 111, the connecting-rod bearing 21 is limited.
technical essential as technical scheme provided by the invention: fix one first oil connection seat 3 with the first screw 34 on aforesaid link pin spindle nose 23, the bottom of this first oil connection seat 3 has one first oil-feed interface 31, and top has one first oil out port 32, and in the first oil connection seat 3, offering one first oil duct 33(Fig. 1 shows), by this first oil duct 33, by first, into and out of oily interface 31,32, connect.
under use state, the flexible pipe of the first oil-feed interface 31 by compliance and fueller for example oil pump are connected, so that by oil pump regularly or not timing lubricating oil is introduced to the first oil-feed interface 31 through the flexible pipe of aforesaid compliance, after the first oil duct 33, from the first oil out port 32, draw.
on one of them connecting rod bearing cap 22 in aforesaid pair of links bearing cap 22, with the 4th screw 43, fix one second oil connection seat 4, this the second oil connection seat 4 has one second oil-feed interface 41 and one second oil duct 42, wherein: the second oil-feed interface 41 connects the bottom at the second oil connection seat 4, and be that oil pipe 411 is connected with aforesaid the first oil out port 32 by thering is the flexible pipe of excellent submissive effect, the second oil duct 42 is opened in the inside of the second oil connection seat 4, communicates with aforesaid the second oil-feed interface 41.The lubricating oil that comes from the first oil out port 32 enters the second oil-feed interface 41 through oil pipe 411, through the second oil duct 42, draws.
in the present embodiment, except following on the second oil connection seat 4 is provided with that connecting rod bearing cap 22 of the second oil connection seat 4, have more one article of the 3rd oil duct 221, all the other structures of pair of links bearing cap 22 are all identical.
aforesaid the 3rd oil duct 221 being opened on connecting rod bearing cap 22 forms and has an oilhole 2211 towards one end of the second oil connection seat 4, this oilhole 2211 is corresponding with aforesaid the second oil duct 42 and communicate, and the 3rd oil duct 221 communicates with draining chamber 2212 towards one end of the connecting-rod bearing 21, this draining chamber 2212 is positioned at or claims to be formed on connecting rod bearing cap 22, and this draining chamber 2212 communicates with bearing oil pocket 222, and the leakage of oil gap road 223 of bearing oil pocket 222 by the threaded portion on connecting rod bearing cap 22 (Fig. 2 shows) communicates with leakage of oil chamber 224, and leakage of oil chamber 224 is between main shaft seal lid 12 and connecting rod bearing cap 22.As shown in Figure 1, main shaft seal lid 12 is fixing with connecting rod bearing cap 22 by the 5th screw 121 after being placed on main shaft 1.Aforesaid leakage of oil chamber 224 communicates with the leakage of oil road 225 being opened on connecting rod bearing cap 22.
in order to collect the lubricating oil that comes from leakage of oil road 225, so the present invention is equipped with an oil thrower 5 on pair of links bearing cap 22 and in the position corresponding to leakage of oil road 225.Preferably but not the oil thrower 5 being definitely limited to comprise and a pair ofly get rid of oily leg 51 and a pair ofly get rid of oily cap 52, it is fixing with one of them connecting rod bearing cap 22 in pair of links bearing cap 22 that a pair of one of them of getting rid of in oily leg 51 got rid of oily leg 51 use the 6th screw 512, and a pair ofly get rid of another in oily leg 51 and get rid of that oily leg 51 is same to be fixed with corresponding the 6th screw 512 and another connecting rod bearing cap 22 in pair of links bearing cap 22.A pair ofly get rid of oily leg 51 and respectively there is (offering) and get rid of oil duct 511, get rid of oil duct 511 corresponding with aforesaid leakage of oil road 225 and communicate.A pair of one of them of getting rid of in oily cap 52 got rid of oily cap 52 and is fixed on a pair of one of them of getting rid of in oily leg 51 and gets rid of the end of oily leg 51, and a pair ofly gets rid of another in oily cap 52 and get rid of oily cap 52 and be fixed on and a pair ofly get rid of another in oily leg 51 and get rid of the end of oily leg 51.Respectively get rid of oily cap 52 and communicate with the aforesaid oil duct 511 that gets rid of, be all horn-like, and correspond to each other, horn mouth is corresponding.
the lubricating oil throwing away in order to collect oil thrower 5, use and avoid polluting, therefore in the frame 7 of needing machine (Fig. 3 shows) and in the position corresponding to oil thrower 5, be fixed with an oil sump tank 6, and on oil sump tank 6, be provided with an oil baffle 61, this oil baffle 61 gets rid of between oily leg 51 a pair of, and with a pair of to get rid of oily cap 52 corresponding, come from the lubricating oil that gets rid of oily cap 52 and suffer stopping of oil baffle 61 and wander to the bottom of oil sump tank 6 from oil baffle 61.Owing to entering, the amount of the fluid in oil sump tank 6 is extremely limited, adds natural evaporation factor, and therefore generally without setting and draw oil pipe for oil sump tank 6, but oil sump tank 6 sets one and draws oil pipe if, is also desirable.
refer to Fig. 3 and continue in conjunction with Fig. 1 and Fig. 2, under needing machine is in running order, by power drive mechanism, drive main shaft 1 rotation, by eccentric cam 11, drive the connecting rod 2 of being furnished with the connecting-rod bearing 21 to move up and down, by the motion of connecting rod 2, needle-bar 8 is moved up and down, by being located at moving up and down of needle plate on needle-bar 8 and that be furnished with pricker, make thorn for the acupuncture of on-woven fiber entanglement property.Whenever through after one or half work team (Yi Ge work team is generally eight hours), can to the connecting-rod bearing 22, provide lubricating oil one time by crankpin bearing lubrication of the present invention mechanism.Specifically: the operation of oil pump being connected with the first oil-feed interface 31 pipelines, lubricating oil enters the first oil duct 33, from the first oil out port 32, draw, by way of oil pipe 411, oil-feed interface 41, the second oil duct 42, oilhole 2211, the 3rd oil duct 221 and draining chamber 2212, enter bearing oil pocket 222 successively, to the connecting-rod bearing 21, provide lubricating oil, lubricating oil in bearing oil pocket 222 enters and gets rid of oil duct 511 through leakage of oil gap road 223, leakage of oil chamber 224 and leakage of oil road 225 successively, until get rid of and oil sump tank 6 by getting rid of oily cap 52.
in sum, technical scheme provided by the invention has solved that industry is expected to solve for a long time and unsolved technical scheme all the time, has completed invention task, has embodied objectively the technique effect described in the superincumbent technique effect of applicant hurdle.
Claims (5)
1.
a kind of crankpin bearing lubrication mechanism that improves the needing machine of structure, described needing machine comprises the main shaft (1) of (11) that has eccentric cam and is located at connecting rod (2) on main shaft (1) and that match with eccentric cam (11) by the connecting-rod bearing (21), wherein: in the both sides of the described connecting-rod bearing (21), be respectively equipped with a connecting rod bearing cap (22), and pair of links bearing cap (22) is fixed together with the connecting-rod bearing (21), it is characterized in that described crankpin bearing lubrication mechanism comprises the one first oil connection seat (3) being fixed on described connecting rod (2), this the first oil connection seat (3) has one first oil-feed interface (31) and one first oil out port (32), first enters, oil out port (31, 32) between, by the first oil duct (33) that is opened in the inside of the first oil connection seat (3), communicated, one is fixed on appointing in described pair of links bearing cap (22) selects the second oil connection seat (4) on a connecting rod bearing cap (22), this the second oil connection seat (4) has one second oil-feed interface (41) and one second oil duct (42), the second oil-feed interface (41) is connected with described the first oil out port (32) by oil pipe (411), and communicates with the second oil duct (42), be opened in one the 3rd oil duct (221) on the connecting rod bearing cap (22) that is fixed with described the second oil connection seat (4), the 3rd oil duct (221) forms and has an oilhole (2211) towards one end of the second oil connection seat (4), this oilhole (2211) communicates with described the second oil duct (42), and the 3rd oil duct (221) has a draining chamber (2212) towards one end of the described connecting-rod bearing (21) formation, this draining chamber (2212) communicates with bearing oil pocket (222), bearing oil pocket (222) is positioned between the connecting-rod bearing (21) and connecting rod bearing cap (22), and the leakage of oil gap road (223) of this bearing oil pocket (222) on connecting rod bearing cap (22) communicates with leakage of oil chamber (224), leakage of oil chamber (224) is positioned between main shaft seal lid (12) and connecting rod bearing cap (22), and this leakage of oil chamber (224) communicates with the leakage of oil road (225) being opened on connecting rod bearing cap (22), one oil thrower (5), this oil thrower (5) comprises a pair of oily leg (51) and a pair of oily cap (52) that gets rid of of getting rid of, this gets rid of oily leg (51) and is fixedly connected with one of them connecting rod bearing cap (22) in described pair of links bearing cap (22) getting rid of one of them in oily leg (51), and another gets rid of oily leg (51) and is fixedly connected with another connecting rod bearing cap (22), and a pair of getting rid of respectively offers one on oily leg (51) and gets rid of oil duct (511), get rid of oil duct (511) corresponding with described leakage of oil road (225) and communicate, a pair of one of them of getting rid of in oily cap (52) got rid of oily cap (52) and is fixed on a pair of one of them of getting rid of in oily leg (51) and gets rid of the end of oily leg (51), one for covering the oil sump tank (6) of the lubricating oil protecting and thrown away by oil thrower (5) for collection to oil thrower (5), this oil sump tank (6) is fixing in the position of the oil thrower corresponding to described (5) and the frame (7) of needing machine, and on described oil sump tank (6), be fixed with an oil baffle (61), this oil baffle (61) is positioned at described a pair of getting rid of between oily leg (51), and with described a pair of to get rid of oily cap (52) corresponding.
2.
the crankpin bearing lubrication mechanism of the needing machine of improvement structure according to claim 1, the lower end that it is characterized in that described connecting rod (2) has a link pin spindle nose (23), on this link pin spindle nose (23), be equipped with a little axis clamping screw of connecting rod (231), the first described oil connection seat (3) is fixed on link pin spindle nose (23) by the first screw (34).
3.
the crankpin bearing lubrication mechanism of the needing machine of improvement structure according to claim 1, it is characterized in that described oil pipe (411) is for having the flexible nonmetallic tubing of compliance, the first described oil-feed interface (31) is connected with fueller pipeline, and described fueller is oil pump.
4.
the crankpin bearing lubrication mechanism of the needing machine of improvement structure according to claim 1, is characterized in that described a pair of position of getting rid of oily cap (52) is mutually corresponding.
5.
according to the crankpin bearing lubrication mechanism of the needing machine of the improvement structure described in claim 1 or 4, it is characterized in that described a pair of shape of getting rid of oily cap (52) is all horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167739.2A CN102704196B (en) | 2012-05-28 | 2012-05-28 | Rod bearing lubricating mechanism with improved structure for needling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167739.2A CN102704196B (en) | 2012-05-28 | 2012-05-28 | Rod bearing lubricating mechanism with improved structure for needling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102704196A CN102704196A (en) | 2012-10-03 |
| CN102704196B true CN102704196B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210167739.2A Expired - Fee Related CN102704196B (en) | 2012-05-28 | 2012-05-28 | Rod bearing lubricating mechanism with improved structure for needling machine |
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| Country | Link |
|---|---|
| CN (1) | CN102704196B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009007308A1 (en) * | 2007-07-06 | 2009-01-15 | Oerlikon Textile Gmbh & Co. Kg | Needling machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2729405B1 (en) * | 1995-01-12 | 1997-04-18 | Asselin | ALTERNATIVE ACTUATION DEVICE AND NEEDLE EQUIPPED THEREWITH |
| JP2005287912A (en) * | 2004-04-02 | 2005-10-20 | Juki Corp | Needle bar lubricating device of sewing machine |
| CN100412396C (en) * | 2006-12-20 | 2008-08-20 | 常熟长城轴承有限公司 | Needle roller bearing |
-
2012
- 2012-05-28 CN CN201210167739.2A patent/CN102704196B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009007308A1 (en) * | 2007-07-06 | 2009-01-15 | Oerlikon Textile Gmbh & Co. Kg | Needling machine |
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| CN102704196A (en) | 2012-10-03 |
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