CN111495999A - Machining device and machining method for bearing sleeve oil storage hole - Google Patents
Machining device and machining method for bearing sleeve oil storage hole Download PDFInfo
- Publication number
- CN111495999A CN111495999A CN202010398141.9A CN202010398141A CN111495999A CN 111495999 A CN111495999 A CN 111495999A CN 202010398141 A CN202010398141 A CN 202010398141A CN 111495999 A CN111495999 A CN 111495999A
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- Prior art keywords
- retainer
- oil storage
- pressure piece
- bearing sleeve
- secondary pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003860 storage Methods 0.000 title claims abstract description 49
- 238000003754 machining Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 10
- 238000003672 processing method Methods 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 239000003129 oil well Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 49
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/18—Making uncoated products by impact extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/04—Mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a processing device and a processing method of an oil storage hole of a bearing sleeve, and the processing device comprises a retainer, wherein the retainer is of a cylindrical structure, the outer diameter of the retainer is the same as the inner diameter of the bearing sleeve, and the cylindrical wall of the retainer is provided with a plurality of radial through holes; the main pressure piece is used for being pressed into the cylinder of the retainer, and the outer diameter of the main pressure piece is the same as the inner diameter of the retainer; and the secondary pressure piece is arranged in the radial through hole, one end of the secondary pressure piece is of a convex structure for forming the oil storage hole, and the other end of the secondary pressure piece is in contact extrusion with the main pressure piece. The processing device can form the oil storage hole on the inner wall of the bearing sleeve through one-step pressure forming, and the production efficiency is improved.
Description
Technical Field
The invention relates to a bearing sleeve, in particular to a device and a method for processing an oil storage hole of the bearing sleeve.
Background
The sliding bearing refers to a bearing which works under sliding friction, and the sliding bearing works stably, reliably and noiselessly. In general, a sliding bearing is disposed between a moving body and a fixed body, and a thin oil film is formed during rotation of a shaft by periodically supplying a lubricating oil, thereby reducing internal friction. However, when the sliding bearing is rubbed or subjected to a large external load during operation, the oil film is easily damaged, so that the friction force is increased, frictional wear and frictional heat are generated, and the service life of the bearing is affected. To cope with this, a plurality of oil reservoirs are provided on the inner wall of the bearing housing.
At present, the following methods are mainly used for processing the bearing sleeve oil storage hole: the oil storage hole can be formed by drilling; can also be installed by using in the processing center (MCT)
Processing and forming a special tool in a font shape; and the oil storage cavity is formed by rolling through a convex structure which is complementary to the oil storage cavity on the shaft. For example, in a manufacturing method of a bearing steel sleeve, oil storage cavities are machined by milling oil cavities distributed discretely on the inner wall of a steel material. The processing methods can form the oil storage hole on the inner wall of the bearing sleeve, but the processing methods have certain defects: the oil storage hole machining steps are complex, one-step forming cannot be achieved, efficiency is low, requirements for machining precision of equipment are high due to direct drilling, milling or rolling, machining tools are fast in abrasion, and the price is high.
Disclosure of Invention
In view of the above, the present invention needs to provide a processing apparatus for oil storage cavities of a bearing sleeve and a processing method thereof, by which a plurality of oil storage cavities can be formed on the inner wall of the bearing sleeve by one-step molding with only one set of mold, thereby greatly improving the processing production efficiency of the oil storage cavities, and the processing apparatus is easier to control the processing precision of the oil storage cavities, thereby solving the problems of the prior art, such as complicated processing steps, low efficiency due to one-step molding failure, rapid tool wear, high price, and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a processingequipment of bearing housing oil storage cave, it includes:
the retainer is of a cylindrical structure, the outer diameter of the retainer is the same as the inner diameter of the bearing sleeve, and a plurality of radial through holes are formed in the cylindrical wall of the retainer;
the main pressure piece is used for being pressed into the cylinder of the retainer, and the outer diameter of the main pressure piece is the same as the inner diameter of the retainer;
and the secondary pressure piece is arranged in the radial through hole, one end of the secondary pressure piece is of a convex structure for forming the oil storage hole, and the other end of the secondary pressure piece is in contact extrusion with the main pressure piece.
Furthermore, the distribution of the radial through holes on the cylindrical wall of the retainer is consistent with the distribution of the oil storage holes on the inner wall of the bearing sleeve.
Furthermore, the pressure input end of the main pressure piece is a first guide characteristic part, the end part, far away from the protruding structure, of the secondary pressure piece is a second guide characteristic part, and the second guide characteristic part is matched with the first guide characteristic part.
Preferably, the first guide characteristic portion is a circle of first guide inclined surface arranged along the main pressure piece, the second guide characteristic portion is a circle of second guide inclined surface arranged along the secondary pressure piece, and the first guide inclined surface is tangent to the second guide inclined surface.
The invention also discloses a processing method of the bearing sleeve oil storage hole, which adopts the processing device for processing and specifically comprises the following steps:
placing the secondary pressure member within the radial through-hole;
placing the retainer in a bearing sleeve to be processed;
and applying pressure to the main pressure piece, pressing the main pressure piece in along the axial direction of the cylindrical structure of the retainer, and forming an oil storage hole on the inner circumferential surface of the bearing sleeve by the secondary pressure piece.
Further, the machining method further comprises the step of finishing the formed oil storage cavity.
The size and the shape of the oil storage hole can be designed according to the secondary pressure piece and the radial through hole, the depth of the oil storage hole can be controlled according to the wall thickness of the retainer (the depth of the radial through hole) and the length of the secondary pressure piece, and the dimensions of the retainer and the secondary pressure piece belong to the processing methods of the outer surface, so the precision is easy to control, and the processing precision of the oil storage hole on the inner wall of the bearing sleeve can be ensured.
In addition, the processing device only needs to process one set of die, so that the one-time extrusion forming of the oil storage hole can be realized, the forming efficiency is high, and the processing device is very suitable for mass production.
Drawings
FIG. 1 is a schematic cross-sectional view of a processing apparatus according to a preferred embodiment of the present invention;
fig. 2 is a schematic perspective view of the retainer 10 of fig. 1;
FIG. 3 is a schematic view of the construction of the secondary pressure member 20 of FIG. 1;
FIG. 4 is a schematic structural view of the primary pressure member 30 of FIG. 1;
fig. 5 is a schematic structural view of the machined bearing sleeve 40;
fig. 6 is a sectional view of the cage 10 and the bearing housing 40 of fig. 5.
In the figure: 10-a retainer, 20-a secondary pressure part, 30-a main pressure part, 40-a bearing sleeve and 50-an oil storage hole;
101-radial through hole, 201-raised structure, 202-second guide feature, 301-first guide feature.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the specific embodiments illustrated. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The embodiment of the invention discloses a machining device for an oil storage hole of a bearing sleeve, which comprises a retainer 10, a secondary pressure piece 20 and a main pressure piece 30, as shown in figure 1. The retainer 10, the main pressure member 30 and the secondary pressure member 20 need to have certain strength, and on one hand, the retainer 10 is not easy to deform, so that the shape of the bearing sleeve is ensured to be maintained in the process of machining and forming. The main pressure member 30 and the secondary pressure member 20 are used for cavitation, which may be made of materials commonly used in the art, such as stainless steel, diamond, etc., preferably, in this embodiment, the retainer 10 and the main pressure member 30 are both made of 45# steel, the surfaces are heat-treated, and the hardness reaches 36-42 HRC; the secondary pressure member 20 is made of 40Cr and has a surface treated hardness of 40 to 50HRC, and it is understood that the material selection of the retainer 10, the primary pressure member 30 and the secondary pressure member 20 is not limited to the foregoing examples, and any material can be used as long as the material can satisfy the processing strength.
The cage 10 is constructed as shown in fig. 2, which is a cylindrical structure, and the main function of the cage 10 is to be disposed inside the bearing housing 40, and therefore, the outer diameter of the cage 10 should be the same as the inner diameter of the bearing housing 40 here. Specifically, a plurality of radial through holes 101 are formed in the cylindrical wall of the retainer 10, and the number and distribution of the radial through holes 101 may be designed according to the distribution of the oil storage cavities 50 on the bearing housing 40, as shown in fig. 6, and thus are not particularly limited.
Referring to fig. 3, the secondary pressure member 20 is disposed in the radial through hole 101 of the holder 10, one end of the secondary pressure member is a convex structure 201 for forming the oil storage cavity 50, and the other end of the secondary pressure member is a second guide feature 202 contacting and pressurizing the primary pressure member 30, where the shape of the convex structure 201 is designed and adjusted according to the shape of the oil storage cavity 50 to be formed, and therefore is not particularly limited, in this embodiment, the oil storage cavity 50 is a blind hole, and since the oil storage cavity 50 is a spherical surface, the convex structure 201 is a spherical surface matching the oil storage cavity 50; the second guiding feature 202 is a second guiding inclined surface along one turn of the secondary pressure member 20, and the length of the secondary pressure member 20 is not specifically limited, and may be designed according to the depth of the oil storage cavity 50, i.e. in the present embodiment, the shape of the oil storage cavity 50 is formed according to the convex structure 201, and the depth of the oil storage cavity 50 is adjusted according to the wall thickness of the retainer 10 (i.e. the depth of the radial through hole 101) and the length of the secondary pressure member 20.
The main pressure member 30 is used to receive external pressure to be slowly pressed into the inner cylinder of the cage 10 in the axial direction of the cage 10 in the present embodiment, and the main pressure member 30 presses the sub pressure member 20, so that the sub pressure member 20 presses the inner wall of the bearing housing 40 to form the oil reservoir 50. Therefore, in the present embodiment, the outer diameter of the main pressure member 30 is the same as the inner diameter of the cage 10. More specifically, a first guide feature 301 is provided at the press-in end of the main pressure member 30, as shown in fig. 4, the first guide feature 301 is a circle of first guide slopes provided along the main pressure member 30, the first guide feature 301 is matched with the second guide feature 202, specifically, the first guide slope is tangent to the second guide slope, and the second guide feature 202 of the secondary pressure member 20 is matched with the first guide feature 301 of the main pressure member 30, so that the branch force generated by the secondary pressure member 20 is maximized and the friction loss is minimized.
When the main pressure member 30 is slowly pressed in along the axial direction of the inner cylinder of the retainer 10, when the main pressure member 30 contacts the secondary pressure member 20, the pressure is cooperated with the first guide characteristic part 301 at the end of the main pressure member 30 and the second guide characteristic part 202 at the end of the secondary pressure member 20, so that the secondary pressure member 20 generates a component force perpendicular to the circumferential surface of the inner wall of the bearing sleeve 40, the circumferential surface of the inner wall of the bearing sleeve 40 is plastically deformed under the pressure of the secondary pressure member 20 to form the oil reservoir 50, as shown in fig. 5, and the depth of the oil reservoir 50 can be controlled by the wall thickness of the retainer 10 and the length of the secondary pressure member 20.
In operation, the secondary pressure member 20 is placed in the radial through hole 101, the end of the protruding structure 201 extends to the inner wall of the bearing sleeve 40, then the retainer 10 is placed in the bearing sleeve 40 to be processed, and the outer wall of the retainer 10 abuts against the inner wall of the bearing sleeve 40. Then, pressure is applied to the main pressure member 30, and at this time, the main pressure member 30 is slowly pressed in along the axial direction of the cylindrical structure of the retainer 10, and the first guide feature 301 thereof cooperates with the second guide feature 202 of the secondary pressure member 20, so that the secondary pressure member 20 generates a component force perpendicular to the circumferential surface of the inner wall of the bearing sleeve 40, and the oil storage cavity 50 is formed on the inner wall of the bearing sleeve 40.
The embodiment also discloses a processing method of the bearing sleeve oil storage hole, which comprises the following processing steps:
sequentially placing the secondary pressure elements 20 in the radial through holes 101;
then the retainer 10 is placed in the bearing housing 40 to be processed;
applying pressure to the main pressure member 30, pressing the main pressure member 30 in along the axial direction of the cylindrical structure of the holder 10, when the first guide feature 301 of the main pressure member 30 contacts and presses the second guide feature 202 of the secondary pressure member 20, the first guide feature 301 and the second guide feature 202 cooperate to make the secondary pressure member 20 generate a directional force on the inner wall circumferential surface of the bearing sleeve 40, so that the secondary pressure member 20 forms the oil storage cavity 50 on the inner circumferential surface of the bearing sleeve 40, and then finishing the formed oil storage cavity 50.
The pressure values applied during the machining process are related to the size of the bearing sleeve 40, such as the inner diameter, the wall thickness and the depth of the oil reservoir 50, and thus the applied pressure values are adjusted according to the wall thickness of the cage 10 and the length of the secondary pressure member 20, which is the ability of those skilled in the art and thus is not limited thereto. The preliminary machining of the bearing sleeve, and the finishing of the post-forming pocket 50, may be performed using procedures and operations conventional in the art, and therefore, will not be described in detail herein. It should be noted that the processing device in this embodiment is only a simple illustration of the processing method in this embodiment, and the processing device suitable for this processing method may also be a kind of extension bar, in which the circumferential surface is covered with small pressure members corresponding to the positions of the oil storage holes, and the small pressure members are controlled to extend and retract by hydraulic pressure, so that the oil storage holes are extruded out at one time on the inner circumferential surface of the sleeve. Other similar one-time extrusion forming devices are not illustrated and belong to the protection scope of the processing method of the invention. Therefore, it will not be described in detail here.
By adopting the processing device and the processing method in the embodiment, only one set of die is needed, the one-time extrusion forming of the oil storage hole of the bearing sleeve can be realized, the efficiency is high, and the processing device and the processing method are suitable for mass production.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The utility model provides a processingequipment of bearing housing oil storage cave which characterized in that, it includes:
the retainer is of a cylindrical structure, the outer diameter of the retainer is the same as the inner diameter of the bearing sleeve, and a plurality of radial through holes are formed in the cylindrical wall of the retainer;
the main pressure piece is used for being pressed into the cylinder of the retainer, and the outer diameter of the main pressure piece is the same as the inner diameter of the retainer;
and the secondary pressure piece is arranged in the radial through hole, one end of the secondary pressure piece is of a convex structure for forming the oil storage hole, and the other end of the secondary pressure piece is in contact extrusion with the main pressure piece.
2. The machining device according to claim 1, wherein the distribution of the radial through holes on the cylindrical wall of the cage coincides with the distribution of the oil pockets on the inner wall of the bearing housing.
3. The tooling of claim 1 wherein the compression end of the primary pressure member is a first guide feature and the end of the secondary pressure member distal from the raised formation is a second guide feature, the second guide feature mating with the first guide feature.
4. The tooling of claim 3 wherein the first guide feature is a ring of first guide ramps disposed along the primary pressure member and the second guide feature is a ring of second guide ramps disposed along the secondary pressure member, the first guide ramps being tangent to the second guide ramps.
5. A processing method of an oil storage hole of a bearing sleeve is characterized by adopting the processing device as claimed in any one of claims 1 to 4 to process, and specifically comprises the following steps:
placing the secondary pressure member within the radial through-hole;
placing the retainer in a bearing sleeve to be processed;
and applying pressure to the main pressure piece, pressing the main pressure piece in along the axial direction of the cylindrical structure of the retainer, and forming an oil storage hole on the inner circumferential surface of the bearing sleeve by the secondary pressure piece.
6. The method of claim 5, further comprising the step of finishing the shaped oil well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398141.9A CN111495999B (en) | 2020-05-12 | 2020-05-12 | Machining device and machining method for oil storage hole of bearing sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398141.9A CN111495999B (en) | 2020-05-12 | 2020-05-12 | Machining device and machining method for oil storage hole of bearing sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111495999A true CN111495999A (en) | 2020-08-07 |
| CN111495999B CN111495999B (en) | 2024-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398141.9A Active CN111495999B (en) | 2020-05-12 | 2020-05-12 | Machining device and machining method for oil storage hole of bearing sleeve |
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| Country | Link |
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| CN (1) | CN111495999B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182428A (en) * | 2021-05-10 | 2021-07-30 | 合肥波林新材料股份有限公司 | Preparation method of steel sleeve oil storage hole |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110071928A (en) * | 2009-12-22 | 2011-06-29 | 두산인프라코어 주식회사 | Bushing type bearing and preparation method thereof |
| WO2013055454A1 (en) * | 2011-10-12 | 2013-04-18 | Virginia Tech Intellectual Properties, Inc. | Cage positioned tilting pad bearing |
| CN203685862U (en) * | 2013-12-20 | 2014-07-02 | 嘉兴市中诚自润轴承有限公司 | Bearing steel sleeve with oil storage pits |
| CN104169596A (en) * | 2012-04-12 | 2014-11-26 | 博世马勒涡轮系统有限两合公司 | Radial bearing |
| KR20200038438A (en) * | 2014-03-04 | 2020-04-13 | 포라이트 가부시키가이샤 | Sintered bearing |
| CN212264197U (en) * | 2020-05-12 | 2021-01-01 | 合肥波林新材料股份有限公司 | Processing device for bearing sleeve oil storage hole |
-
2020
- 2020-05-12 CN CN202010398141.9A patent/CN111495999B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110071928A (en) * | 2009-12-22 | 2011-06-29 | 두산인프라코어 주식회사 | Bushing type bearing and preparation method thereof |
| WO2013055454A1 (en) * | 2011-10-12 | 2013-04-18 | Virginia Tech Intellectual Properties, Inc. | Cage positioned tilting pad bearing |
| CN104169596A (en) * | 2012-04-12 | 2014-11-26 | 博世马勒涡轮系统有限两合公司 | Radial bearing |
| CN203685862U (en) * | 2013-12-20 | 2014-07-02 | 嘉兴市中诚自润轴承有限公司 | Bearing steel sleeve with oil storage pits |
| KR20200038438A (en) * | 2014-03-04 | 2020-04-13 | 포라이트 가부시키가이샤 | Sintered bearing |
| CN212264197U (en) * | 2020-05-12 | 2021-01-01 | 合肥波林新材料股份有限公司 | Processing device for bearing sleeve oil storage hole |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182428A (en) * | 2021-05-10 | 2021-07-30 | 合肥波林新材料股份有限公司 | Preparation method of steel sleeve oil storage hole |
| CN113182428B (en) * | 2021-05-10 | 2023-08-15 | 合肥波林新材料股份有限公司 | Preparation method of steel sleeve oil storage hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111495999B (en) | 2024-08-16 |
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