CN111195836A - Device and method for machining ball base surface of super-large tapered roller through centerless support - Google Patents
Device and method for machining ball base surface of super-large tapered roller through centerless support Download PDFInfo
- Publication number
- CN111195836A CN111195836A CN202010228310.4A CN202010228310A CN111195836A CN 111195836 A CN111195836 A CN 111195836A CN 202010228310 A CN202010228310 A CN 202010228310A CN 111195836 A CN111195836 A CN 111195836A
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- China
- Prior art keywords
- roller
- base surface
- rollers
- grinding
- ball base
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/26—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding peculiarly profiled surfaces, e.g. bulged
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/307—Means for supporting work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a device and a method for processing a spherical base surface of an oversize tapered roller by centerless support, and the device comprises two rollers which are arranged below the roller and used for supporting the roller, wherein one end of each roller is provided with a magnetic disk for adsorbing the small end surface of the roller, and the other end of each roller is provided with a grinding wheel for grinding the spherical base surface of the roller; the roller is supported in a centerless supporting mode, the magnetic disc is arranged on the small end face of the roller and adsorbs the roller, and when two rollers below the roller rotate, the magnetic disc can improve the stability of the roller in terms of adsorption of the roller, so that the accuracy of processing the ball base surface of the roller is improved, and the use requirement is met.
Description
Technical Field
The invention belongs to the technical field of machining of a spherical base surface of an oversize conical roller, and particularly relates to a device and a method for machining the spherical base surface of the oversize conical roller by using a centerless bearing.
Background
In recent years, wind power generation has been highly regarded by various countries as a renewable green novel clean energy, and has been developed. The bearing for the wind driven generator mainly comprises: the yaw bearing assembly, fan blade main shaft bearing, derailleur bearing, generator bearing etc. and the structural style of bearing mainly has four point contact ball bearing, cross roller bearing, cylindrical roller bearing, aligning roller bearing, deep groove ball bearing etc.. The wind driven generator works in the field all the year round, the working condition is severe, the temperature, humidity and bearing load change greatly, the wind speed can reach 23m/s at most, and impact load exists, so that the bearing is required to have good sealing performance, lubricating performance, impact resistance, long service life and reliability.
At present, the machining precision of a bearing of a wind driven generator is one of the factors meeting the normal operation of wind power generation, wherein the shape and the size precision of a spherical base surface of an oversize tapered roller can directly influence the contact state and the lubrication state of the end surface of the roller and a large flange of an inner ring and the service life of the bearing, and the machining precision is the key for influencing the precision of the bearing. In the prior art, because the tapered roller has a large size, when the spherical base surface of the tapered roller is processed, a generating grinding method is generally adopted, namely a processing method that the roller and a grinding wheel respectively move relatively according to a certain movement rule and are fitted with each other. In the prior art, the grinding of the spherical base surface by a generating method comprises the modes of manual grinding and sleeve-added grinding, wherein the sleeve grinding is to fix the small end of a roller by using a sleeve, the sleeve is arranged on a clamp, and the clamp is matched with a grinding wheel to rotate after rotating to realize the grinding of the spherical base surface; however, the two grinding modes have great limitations, which are reflected in that the two grinding modes have lower grinding precision for the ball base surface of the roller, the precision of the ball base surface of the roller cannot meet the requirement after grinding is finished, and the bounce amount of the ball base surface relative to the central axis of the roller is large or unstable, so that the use requirement cannot be met.
Disclosure of Invention
The invention provides a device and a method for processing an oversize conical roller ball base surface by centerless support, aiming at solving the technical problems, and the device and the method have scientific and reasonable design and convenient operation; the roller is supported in a centerless supporting mode, the magnetic disc is arranged on the small end face of the roller and adsorbs the roller, and when two rollers below the roller rotate, the magnetic disc can improve the stability of the roller in terms of adsorption of the roller, so that the accuracy of processing the ball base surface of the roller is improved, and the use requirement is met.
The technical scheme adopted by the invention is as follows: the device for machining the spherical base surface of the oversize tapered roller by the centerless support comprises two rollers arranged below the roller and used for supporting the roller, wherein one end of each roller is provided with a magnetic disc for adsorbing the small end surface of the roller, and the other end of each roller is provided with a grinding wheel for grinding the spherical base surface of the roller.
The two rollers are rotatable rollers, and the rotating directions of the two rollers are the same.
A method for machining the base surface of super-large conic roller without bearing includes such steps as putting roller on two rollers, adsorbing the end surface of roller by magnetic disk at small end of roller, rotating the two rollers at same speed and direction to make the roller rotate, and grinding the big end surface of roller by grinding wheel.
And during grinding, the grinding wheel is positioned above the central line of the roller.
The roller comprises two rollers which are arranged below the roller and used for supporting the roller; the purpose of this is: the roller is supported in a centerless supporting mode, and is driven to rotate by the rotation of the two rollers, so that the roller can be freely placed in the positioning fixture, and the grinding device has the characteristics of automation in the grinding process, high production efficiency and high precision.
One end of the roller is provided with a magnetic disk for adsorbing the small end face of the roller, and the other end of the roller is provided with a grinding wheel for grinding the ball base surface of the roller; the purpose of this is: the magnetic disc can be used for adsorbing the roller, and in the adsorption process, the roller can rotate under the action of the roller below, so that the stability of the roller can be improved, and the grinding wheel is favorable for improving the machining precision of the spherical base surface when being ground.
The invention has the beneficial effects that: the invention has scientific and reasonable design and convenient operation; the roller is supported in a centerless supporting mode, the magnetic disc is arranged on the small end face of the roller and adsorbs the roller, and when two rollers below the roller rotate, the magnetic disc can improve the stability of the roller in terms of adsorption of the roller, so that the accuracy of processing the ball base surface of the roller is improved, and the use requirement is met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention.
The labels in the figure are:
1. a roller; 2. a magnetic disk; 3. a roller; 4. and (5) grinding wheels.
Detailed Description
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings.
As shown in the figure, the device for machining the spherical base surface of the oversize tapered roller through the centerless support comprises two rollers 1 arranged below a roller 3 and used for supporting the roller 3, wherein one end of each roller 1 is provided with a magnetic disc 2 for adsorbing the small end surface of the roller 3, the other end of each roller 1 is provided with a grinding wheel 4 for grinding the spherical base surface of the roller 3, specifically, the rollers 1 are fixed on a frame through bearing seats, the end parts of the two rollers 1 are both connected with gears, the two gears are both meshed with a transition gear for ensuring the rotation directions of the two rollers 1 to be consistent, the gear on one roller 1 is meshed with the gear at the shaft end of a motor to realize power transmission, the magnetic disc 2 is fixedly arranged on the frame, the grinding wheel 4 is arranged on a grinding wheel shaft, the included angle between the axis of the grinding wheel and the axis of the roller 3 is α, the size change of the spherical base surface can be realized by adjusting the angle of the α, and respective installation structures of the rollers 1.
The two rollers 1 are rotatable rollers 1, the rotation directions of the two rollers 1 are the same, and the rollers 3 located above the two rollers are driven to rotate, so that the rollers 3 rotate, and the grinding of the generating method sphere base surface is formed by matching with the rotation of the grinding wheel 4.
A method for processing a spherical base surface of a super-large tapered roller by a centerless support comprises the steps of placing a roller 3 on two rollers 1, adsorbing the end surface of the roller 3 by a magnetic disc 2 at the small end position of the roller 3, rotating the two rollers 1 at the same rotating speed and in the same rotating direction to enable the roller 3 above the rollers 1 to rotate, enabling a grinding wheel 4 positioned in the direction of the large end surface of the roller 3 to rotate and grind the large end surface of the roller 3 to form a spherical surface while the roller 3 rotates, and aiming at the super-large tapered roller, the centerless support grinding mode is adopted, so that the grinding precision of the spherical base surface of the roller 3 can be improved, the requirement of the axial jumping amount of the spherical base surface relative to the roller 3 is met, and the service life of a bearing is prolonged.
During grinding, the grinding wheel 4 is positioned above the central line of the roller 3.
Claims (4)
1. A device for processing the ball base surface of an oversize tapered roller by centerless support is characterized in that: the grinding wheel comprises two idler wheels arranged below the roller and used for supporting the roller, wherein one end of each idler wheel is provided with a magnetic disk for adsorbing the small end face of the roller, and the other end of each idler wheel is provided with a grinding wheel for grinding the ball base face of the roller.
2. The device for machining the ball base surface of the oversize tapered roller without the center bearing as claimed in claim 1, is characterized in that: the two rollers are rotatable rollers, and the rotation directions of the two rollers are the same.
3. The method for machining the ball base surface of the oversize tapered roller without the center support as claimed in claim 1, wherein the method comprises the following steps: the roller is placed on the two rollers, the magnetic disc at the small end of the roller adsorbs the end face of the roller, the two rollers rotate at the same rotating speed and in the same rotating direction, so that the roller above the rollers rotates, and the grinding wheel positioned in the direction of the large end face of the roller rotates and grinds the large end face of the roller to form a spherical surface.
4. The method for machining the ball base surface of the oversize tapered roller without the center bearing as claimed in claim 3, wherein the method comprises the following steps: during grinding, the grinding wheel is located above the roller centerline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010228310.4A CN111195836A (en) | 2020-03-27 | 2020-03-27 | Device and method for machining ball base surface of super-large tapered roller through centerless support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010228310.4A CN111195836A (en) | 2020-03-27 | 2020-03-27 | Device and method for machining ball base surface of super-large tapered roller through centerless support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111195836A true CN111195836A (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010228310.4A Pending CN111195836A (en) | 2020-03-27 | 2020-03-27 | Device and method for machining ball base surface of super-large tapered roller through centerless support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111195836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161272A (en) * | 2021-12-20 | 2022-03-11 | 王晓明 | Composite grinding machine for simultaneously grinding outer diameter and spherical base surface of tapered roller |
-
2020
- 2020-03-27 CN CN202010228310.4A patent/CN111195836A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161272A (en) * | 2021-12-20 | 2022-03-11 | 王晓明 | Composite grinding machine for simultaneously grinding outer diameter and spherical base surface of tapered roller |
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