CN109227347A - A kind of needle roller throwing amendment line method - Google Patents
A kind of needle roller throwing amendment line method Download PDFInfo
- Publication number
- CN109227347A CN109227347A CN201811168067.0A CN201811168067A CN109227347A CN 109227347 A CN109227347 A CN 109227347A CN 201811168067 A CN201811168067 A CN 201811168067A CN 109227347 A CN109227347 A CN 109227347A
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- Prior art keywords
- bucket
- throws
- needle roller
- throwing
- line method
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Amendment line method is thrown the present invention provides a kind of needle roller and shortens the production time and period of product under the premise of guaranteeing that product design requires, and meets the big convexity requirement of needle roller, and improve the service life and bearing capacity of needle roller.The method that needle roller provided by the present invention throws modified line foreshortens to 2-5 hours by working hour from 20-22 hours, provides working efficiency significantly.
Description
Technical field
The present invention relates to mechanical preparation technical fields, throw amendment line method in particular to a kind of needle roller.
Background technique
Currently, the throwing modified line of needle roller is mainly realized by flicker burnishing, the equipment of use is that tilting illiciumverum is thrown
Bucket matches the mutual reciprocating of material casting by needle roller, bucket wall and regulation to realize the convex metric requirements of product.Through long-term
Pilot production and optimization comparison, discovery, which alters process by octagonal throwings for throwing bucket, will reach the convexity amount of product design, generally need to
Want a few hours long-time throw alter process, not only elongated the production cycle of product in this way, and waste more manpowers and
Material resources.
The technique that existing needle roller throws modified line is to throw bucket by illiciumverum to realize.Tracking through long-term flicker burnishing and point
Analysis realizes the geometry for the convexity amount and needle roller working surface that needle roller product design requires, often to need about 20-22 small
When long-time throwing alter process.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of method that needle roller throws modified line, and the needle roller throws modified line
Method shortens the production time and period of product under the premise of guaranteeing that product design requires, and meets the big convexity requirement of needle roller,
And improve the service life and bearing capacity of needle roller.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of needle roller throwing amendment line method, comprising the following steps:
After workpiece grinding, with band tooth circle throwing bucket throwing modified line 2-5 hours, preferably 2-3 hours, then bucket is thrown with illiciumverum and is carried out
Alter light 2-4 hours, preferably 2-3 hours.
Preferably, the workpiece quality is 50-80kg.
Preferably, described to be thrown in the step of bucket throws modified line with band tooth circle, specifically includes the following steps:
It is thrown in band tooth circle and diamond dust, sodium nitrite and water is added in bucket, the revolving speed for adjusting bucket is 500-800r/min, is thrown
The bucket elevation angle is 20 ° -50 °；
It is furthermore preferred that the revolving speed of the whole bucket is 600-700r/min, the throwing bucket elevation angle is 20 ° -30 °.
Preferably, the additive amount of the sodium nitrite is 0.5-2kg, more preferably 1-1.5kg.
Preferably, at the water immersion workpiece at least 2/3, at more preferably 1/2-2/3.
Preferably, described alter in the step of light with illiciumverum throwing bucket, specifically includes the following steps:
It is thrown in illiciumverum and calcium carbonate, sodium nitrite, brightener and water is added in bucket, the revolving speed for adjusting bucket is 350-550r/
Min, throwing the bucket elevation angle is 20 ° -40 °；
It is furthermore preferred that the revolving speed of the adjustment bucket is 400-550r/min, throwing the bucket elevation angle is 25 ° -35 °.
Preferably, the additive amount of the calcium carbonate is 0.5-2kg, more preferably 1-1.5kg.
Preferably, the additive amount of the sodium nitrite is 0.5-2kg, more preferably 1-1.5kg.
Preferably, the additive amount of the brightener is 0.5-2kg, more preferably 1-1.5kg.
Preferably, the water immersion workpiece.
Compared with prior art, the invention has the benefit that
(1) method that needle roller provided by the present invention throws modified line shortens under the premise of guaranteeing that product design requires
The production time and period of product meet the big convexity requirement of needle roller, and improve the service life and bearing capacity of needle roller.
(2) method that needle roller provided by the present invention throws modified line foreshortens to 2-5 hours by working hour from 20-22 hours,
Working efficiency is provided significantly.
Detailed description of the invention
It, below will be to tool in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Body embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing be some embodiments of the present invention, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of liquid needle provided in an embodiment of the present invention；
Fig. 2 is enlarged drawing at I in the schematic diagram of liquid needle shown in FIG. 1；
Fig. 3 is the drum schematic diagram that embodiment one provides；
The Local map when inside for the drum that Fig. 4 provides for embodiment one is equipped with material.
Icon: 10- drum；40- rake tooth；101- feeding port.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the drawings and specific embodiments, but
Be it will be understood to those of skill in the art that it is following described embodiments are some of the embodiments of the present invention, rather than it is whole
Embodiment is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.The person that is not specified actual conditions in embodiment, carries out according to conventional conditions or manufacturer's recommended conditions.It is used
Production firm person is not specified in reagent or instrument, is the conventional products that can be obtained by commercially available purchase.
A kind of needle roller throwing amendment line method, comprising the following steps:
After workpiece grinding, with band tooth circle throwing bucket throwing modified line 2-5 hours, preferably 2-3 hours, then bucket is thrown with illiciumverum and is carried out
Alter light 2-4 hours, preferably 2-3 hours.
Needle roller provided by the present invention throws amendment line method, and traditional tilting illiciumverum throws bucket inner wall smooth, and existing
The technique of throwings modified line that tilting illiciumverum throws bucket is compared, and the great advantage with tooth circle throwing bucket is wanted being ensured of product design
It under the premise of asking, substantially reduces throwing and alters the time, reach the convex metric requirements of product, improve production efficiency, reduce energy consumption.If
It is required that big convexity, increases to throw and alter the time and can realize.
The structure for throwing bucket with tooth circle is as shown in Figure 3 and Figure 4.It includes drum 10, for driving 10 turns of drum that band tooth circle, which throws bucket,
Dynamic driving device, the bracket 30 for being used to support drum 10 and driving device；Drum 10 has feeding port 101, and drum 10
Multiple rake tooths 40 are provided on inner wall, multiple irregular distributions of rake tooth 40 are on the inner wall of drum 10.
In actual use, drum 10 is horizontally disposed, the side of drum 10 is provided with feeding port 101, needle roller is by sending
Material mouth 101 is sent out inside drum 10, and as the rotation needle roller of drum 10 does centrifugal movement in drum 10；In drum 10
Multiple rake tooths 40 are provided on inner wall, and the irregular distribution of multiple rake tooths 40, on the inner wall of drum 10, needle roller is rolling
When being abandoned under the power effect of bucket 10, it can collide with the rake tooth 40 on 10 inner wall of drum, and then pass through rake tooth 40
Needle roller is modified, while increasing the position that needle roller is contacted with rake tooth 40, it can be ensured that needle roller is obtained from multiple angles
Amendment, increases relative motion between needle roller and rake tooth 40, so that needle roller end is nearby relatively faster than other parts and is worn away, corner angle
Blunt, finish raising is cut, while so that bus is formed a convex smooth and close to logarithmic curve, while shortening institute's used time
It is long.
Preferably, the workpiece quality is 50-80kg.
Preferably, described to be thrown in the step of bucket throws modified line with band tooth circle, specifically includes the following steps:
It is thrown in band tooth circle and diamond dust, sodium nitrite and water is added in bucket, the revolving speed for adjusting bucket is 500-800r/min, is thrown
The bucket elevation angle is 20 ° -50 °；
It is furthermore preferred that the revolving speed of the whole bucket is 600-700r/min, the throwing bucket elevation angle is 20 ° -30 °.
Preferably, the additive amount of the sodium nitrite is 0.5-2kg, more preferably 1-1.5kg.
Preferably, at the water immersion workpiece at least 2/3, at more preferably 1/2-2/3.
Preferably, described alter in the step of light with illiciumverum throwing bucket, specifically includes the following steps:
It is thrown in illiciumverum and calcium carbonate, sodium nitrite, brightener and water is added in bucket, the revolving speed for adjusting bucket is 350-550r/
Min, throwing the bucket elevation angle is 20 ° -40 °；
It is furthermore preferred that the revolving speed of the adjustment bucket is 400-550r/min, throwing the bucket elevation angle is 25 ° -35 °.
Preferably, the additive amount of the calcium carbonate is 0.5-2kg, more preferably 1-1.5kg.
Preferably, the additive amount of the sodium nitrite is 0.5-2kg, more preferably 1-1.5kg.
Preferably, the additive amount of the brightener is 0.5-2kg, more preferably 1-1.5kg.
Preferably, the water immersion workpiece.
Embodiment 1
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 0.5kg sodium nitrite and water is added in bucket, submerge workpiece 2/3
Place, the revolving speed for adjusting bucket is 500r/min, and throwing the bucket elevation angle is 20 °, throws bucket with band tooth circle and throws modified line 2 hours.
(2) it is thrown in illiciumverum and 0.5kg calcium carbonate, 0.5kg sodium nitrite, 0.5kg brightener and water, water immersion is added in bucket
Workpiece, the revolving speed for adjusting bucket is 350r/min, and throwing the bucket elevation angle is 25 °, throws bucket with illiciumverum and carries out altering light 2 hours.
Embodiment 2
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 2kg sodium nitrite and water is added in bucket, submerge workpiece 2/3
Place, the revolving speed for adjusting bucket is 800r/min, and throwing the bucket elevation angle is 40 °, throws bucket with band tooth circle and throws modified line 5 hours.
(2) it is thrown in illiciumverum and 2kg calcium carbonate, 2kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece is adjusted
The revolving speed of whole bucket is 550r/min, and throwing the bucket elevation angle is 35 °, throws bucket with illiciumverum and carries out altering light 4 hours.
Embodiment 3
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 1kg sodium nitrite and water is added in bucket, submerge workpiece 1/2
Place, the revolving speed for adjusting bucket is 700r/min, and throwing the bucket elevation angle is 30 °, throws bucket with band tooth circle and throws modified line 3 hours.
(2) it is thrown in illiciumverum and 1kg calcium carbonate, 1kg sodium nitrite, 1kg brightener and water is added in bucket, water immersion workpiece is adjusted
The revolving speed of whole bucket is 400r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 3 hours.
Embodiment 4
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 1.5kg sodium nitrite and water is added in bucket, submergence workpiece is extremely
At few 2/3, the revolving speed for adjusting bucket is 600r/min, and throwing the bucket elevation angle is 25 °, throws bucket with band tooth circle and throws modified line 2.5 hours.
(2) it is thrown in illiciumverum and 1.5kg calcium carbonate, 1.5kg sodium nitrite, 1.5kg brightener and water, water immersion is added in bucket
Workpiece, the revolving speed for adjusting bucket is 450r/min, and throwing the bucket elevation angle is 28 °, throws bucket with illiciumverum and carries out altering light 2.5 hours.
Embodiment 5
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 0.8kg sodium nitrite and water is added in bucket, submerge workpiece 2/3
Place, the revolving speed for adjusting bucket is 650r/min, and throwing the bucket elevation angle is 32 °, throws bucket with band tooth circle and throws modified line 3.5 hours.
(2) it is thrown in illiciumverum and 1kg calcium carbonate, 0.5kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece,
The revolving speed for adjusting bucket is 500r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 2.5 hours.
Embodiment 6
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 1.5kg sodium nitrite and water is added in bucket, submergence workpiece is extremely
At few 2/3, the revolving speed for adjusting bucket is 700r/min, and throwing the bucket elevation angle is 30 °, throws bucket with band tooth circle and throws modified line 4.5 hours.
(2) it is thrown in illiciumverum and 2kg calcium carbonate, 1.5kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece,
The revolving speed for adjusting bucket is 550r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 2 hours.
Embodiment 7
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 2kg sodium nitrite and water is added in bucket, submerge workpiece 1/2/3
Place, the revolving speed for adjusting bucket is 750r/min, and throwing the bucket elevation angle is 40 °, throws bucket with band tooth circle and throws modified line 3 hours.
(2) it is thrown in illiciumverum and 1kg calcium carbonate, 1.5kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece,
The revolving speed for adjusting bucket is 400r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 2.5 hours.
Embodiment 8
Needle roller provided by the present embodiment throws amendment line method, specifically includes the following steps:
(1) it after workpiece grinding, is thrown in band tooth circle and diamond dust, 1kg sodium nitrite and water is added in bucket, submerge workpiece 2/3
Place, the revolving speed for adjusting bucket is 800r/min, and throwing the bucket elevation angle is 35 °, throws bucket with band tooth circle and throws modified line 3 hours.
(2) it is thrown in illiciumverum and 1kg calcium carbonate, 1.5kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece,
The revolving speed for adjusting bucket is 400r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 2.5 hours.
Comparative example 1
(1) it after workpiece grinding, is thrown in illiciumverum and diamond dust, 0.8kg sodium nitrite and water is added in bucket, submerge workpiece 2/3
Place, the revolving speed for adjusting bucket is 650r/min, and throwing the bucket elevation angle is 32 °, throws bucket with band tooth circle and throws modified line 20 hours.
(2) it is thrown in illiciumverum and 1kg calcium carbonate, 0.5kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece,
The revolving speed for adjusting bucket is 500r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 2 hours.
Comparative example 2
(1) it after workpiece grinding, is thrown in illiciumverum and diamond dust, 0.8kg sodium nitrite and water is added in bucket, submerge workpiece 2/3
Place, the revolving speed for adjusting bucket is 650r/min, and throwing the bucket elevation angle is 32 °, throws bucket with band tooth circle and throws modified line 24 hours.
(2) it is thrown in illiciumverum and 1kg calcium carbonate, 0.5kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece,
The revolving speed for adjusting bucket is 500r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 2.5 hours.
Comparative example 3
(1) it after workpiece grinding, is thrown in illiciumverum and diamond dust, 0.8kg sodium nitrite and water is added in bucket, submerge workpiece 2/3
Place, the revolving speed for adjusting bucket is 650r/min, and throwing the bucket elevation angle is 32 °, throws bucket with band tooth circle and throws modified line 22 hours.
(2) it is thrown in illiciumverum and 1kg calcium carbonate, 0.5kg sodium nitrite, 2kg brightener and water is added in bucket, water immersion workpiece,
The revolving speed for adjusting bucket is 500r/min, and throwing the bucket elevation angle is 30 °, throws bucket with illiciumverum and carries out altering light 2.5 hours.
Experimental example distinct methods throw the comparison repaired
It is as shown in table 1 that work piece results comparison is repaired in the throwing of method provided by method provided by embodiment 1-8 and comparative example.
Table 1
| Project | / h is altered the time in throwing | Convex value um |
| Embodiment 1 | 2 | 4 |
| Embodiment 2 | 4 | 5 |
| Embodiment 3 | 3 | 6 |
| Embodiment 4 | 3 | 7 |
| Embodiment 5 | 3.5 | 5 |
| Embodiment 6 | 4.5 | 5 |
| Embodiment 7 | 2.5 | 4 |
| Embodiment 8 | 3 | 7 |
| Comparative example 1 | 20 | 2 |
| Comparative example 2 | 24 | 3 |
| Comparative example 3 | 22 | 4 |
The experimental results showed that throwing the great advantage of bucket with tooth circle is under the premise of being ensured of product design requirement, significantly
It shortens throwing and alters the time, reach the convex metric requirements of product, improve production efficiency, reduce energy consumption.If it is required that big convexity, increases
The time is altered in throwing to be realized.
In conclusion it is provided herein under the premise of guaranteeing that product design requires, shorten the production time of product
And the period, meet the big convexity requirement of needle roller, and improve the service life and bearing capacity of needle roller.Needle roller provided by the present invention
The method for throwing modified line foreshortens to 2-5 hours by working hour from 20-22 hours, provides working efficiency significantly.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that the above various embodiments is only used
To illustrate technical solution of the present invention, rather than its limitations；Those skilled in the art should understand that: without departing substantially from this
It in the case where the spirit and scope of invention, is possible to modify the technical solutions described in the foregoing embodiments, or to it
Middle part or all technical features are equivalently replaced；And these are modified or replaceed, and do not make the sheet of corresponding technical solution
Matter departs from the scope of the technical solutions of the embodiments of the present invention；It is, therefore, intended that in the following claims including belonging to this
All these substitutions and modifications in invention scope.
Claims (10)
1. a kind of needle roller throws amendment line method, which comprises the following steps:
After workpiece grinding, with band tooth circle throwing bucket throwing modified line 2-5 hours, preferably 2-3 hours, then bucket is thrown with illiciumverum and carries out altering light 2-
4 hours, preferably 2-3 hours.
2. needle roller according to claim 1 throws amendment line method, which is characterized in that the workpiece quality is 50-80kg.
3. needle roller according to claim 1 throws amendment line method, which is characterized in that described to throw modified line with the round bucket of throwing of band tooth
The step of in, specifically includes the following steps:
It is thrown in band tooth circle and diamond dust, sodium nitrite and water is added in bucket, the revolving speed for adjusting bucket is 500-800r/min, throws the bucket elevation angle
It is 20 ° -50 °；
Preferably, the revolving speed of the whole bucket is 600-700r/min, and the throwing bucket elevation angle is 20 ° -30 °.
4. needle roller according to claim 3 throws amendment line method, which is characterized in that the additive amount of the sodium nitrite is
0.5-2kg, preferably 1-1.5kg.
5. needle roller according to claim 3 throws amendment line method, which is characterized in that at the water immersion workpiece at least 2/3,
At preferably 1/2-2/3.
6. needle roller according to claim 1 throws amendment line method, which is characterized in that described to carry out altering light with illiciumverum throwing bucket
In step, specifically includes the following steps:
It is thrown in illiciumverum and calcium carbonate, sodium nitrite, brightener and water is added in bucket, the revolving speed for adjusting bucket is 350-550r/min, is thrown
The bucket elevation angle is 20 ° -40 °；
Preferably, the revolving speed of the adjustment bucket is 400-550r/min, and throwing the bucket elevation angle is 25 ° -35 °.
7. needle roller according to claim 6 throws amendment line method, which is characterized in that the additive amount of the calcium carbonate is 0.5-
2kg, preferably 1-1.5kg.
8. needle roller according to claim 6 throws amendment line method, which is characterized in that the additive amount of the sodium nitrite is
0.5-2kg, preferably 1-1.5kg.
9. needle roller according to claim 6 throws amendment line method, which is characterized in that the additive amount of the brightener is 0.5-
2kg, preferably 1-1.5kg.
10. needle roller according to claim 6 throws amendment line method, which is characterized in that the water immersion workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168067.0A CN109227347A (en) | 2018-10-08 | 2018-10-08 | A kind of needle roller throwing amendment line method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168067.0A CN109227347A (en) | 2018-10-08 | 2018-10-08 | A kind of needle roller throwing amendment line method |
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| CN109227347A true CN109227347A (en) | 2019-01-18 |
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ID=65055217
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| CN201811168067.0A Pending CN109227347A (en) | 2018-10-08 | 2018-10-08 | A kind of needle roller throwing amendment line method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009014126A (en) * | 2007-07-06 | 2009-01-22 | Nsk Ltd | Roller bearing |
| CN102501161A (en) * | 2011-11-08 | 2012-06-20 | 宁波中和汽配有限公司 | Method for manufacturing needle roller with unloading function for bearing |
| CN205996782U (en) * | 2016-08-15 | 2017-03-08 | 江苏南方轴承股份有限公司 | It is used in mixed way formula correction of the flank shape bucket |
| CN107175573A (en) * | 2017-06-05 | 2017-09-19 | 峨眉山市驰骋机械制造有限公司 | Environment-friendly type needle roller alters angle machine |
| CN107932197A (en) * | 2017-11-27 | 2018-04-20 | 宁波中和汽配有限公司 | Needle roller glossing |
-
2018
- 2018-10-08 CN CN201811168067.0A patent/CN109227347A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009014126A (en) * | 2007-07-06 | 2009-01-22 | Nsk Ltd | Roller bearing |
| CN102501161A (en) * | 2011-11-08 | 2012-06-20 | 宁波中和汽配有限公司 | Method for manufacturing needle roller with unloading function for bearing |
| CN205996782U (en) * | 2016-08-15 | 2017-03-08 | 江苏南方轴承股份有限公司 | It is used in mixed way formula correction of the flank shape bucket |
| CN107175573A (en) * | 2017-06-05 | 2017-09-19 | 峨眉山市驰骋机械制造有限公司 | Environment-friendly type needle roller alters angle machine |
| CN107932197A (en) * | 2017-11-27 | 2018-04-20 | 宁波中和汽配有限公司 | Needle roller glossing |
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