CN114178791A - Machining process of thrust bearing shell or protector shell - Google Patents
Machining process of thrust bearing shell or protector shell Download PDFInfo
- Publication number
- CN114178791A CN114178791A CN202111531032.0A CN202111531032A CN114178791A CN 114178791 A CN114178791 A CN 114178791A CN 202111531032 A CN202111531032 A CN 202111531032A CN 114178791 A CN114178791 A CN 114178791A
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- CN
- China
- Prior art keywords
- shell
- thrust bearing
- protector
- bearing shell
- face
- 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.)
- Pending
Links
- 230000001012 protector Effects 0.000 title claims abstract description 43
- 238000003754 machining Methods 0.000 title claims description 9
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 238000005498 polishing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning 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
- 239000003129 oil well Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a thrust bearing shell or protector shell processing technology, which comprises the following processing steps: 1) honing an inner hole of the thrust bearing shell or the protector shell to a required size; 2) clamping one end of the thrust bearing shell or the protector shell by using a lathe chuck, aligning the other end face of the thrust bearing shell or the protector shell, polishing and removing burrs at the end face, and turning around the other end after finishing one end; 3) using a centre to push and push inner holes at two ends of the bearing shell or the protector shell, and turning an outer circle by a lathe; 4) and clamping the excircle part of the thrust bearing shell or the protector shell by using a double-end numerical control lathe, and simultaneously processing the rabbet parts and the thread parts at two ends of the thrust bearing shell or the protector shell. The invention ensures the requirements of the form and position tolerance of the shell (the coaxiality tolerance is less than or equal to 0.02mm, and the end face parallelism tolerance is less than or equal to 0.01 mm), has high processing efficiency and saves raw materials; the working efficiency is high, the operation is simple, the learning is easy, and the processing difficulty is low.
Description
Technical Field
The invention relates to the field of oil pumping downhole equipment, in particular to a thrust bearing shell or protector shell machining process.
Background
The working environment of the pumping down-hole equipment is complex and the conditions are severe; the quality of the oil can directly affect the yield of the oil well. Therefore, the machining precision of the parts of the underground equipment is high, and the requirements on the shape and position tolerance are very strict. For example, the position tolerance requirements of the thrust bearing shell and the protector shell are very strict, the end face parallelism tolerance of two ends of the shell is less than or equal to 0.01mm, the coaxiality tolerance requirements of the axes of the spigot part and the thread part of the two ends of the shell and the axis of the inner hole of the shell are less than or equal to 0.02mm, and therefore a set of reasonable processing technology is required in the processing process of the shell.
At present, one end of a thrust bearing shell or a protector shell is clamped by a chuck of a lathe to be machined (the end face is turned, the spigot is turned, the thread is turned), and the other end of the shell is machined after the machining process is finished.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a machining process of a thrust bearing shell or a protector shell.
The new technical scheme of the invention is as follows:
a processing technology for a thrust bearing shell or a protector shell comprises inner hole honing, end face deburring, double-top turning and double-end turning, and comprises the following processing steps:
1) honing an inner hole of the thrust bearing shell or the protector shell to a required size;
2) clamping one end of the thrust bearing shell or the protector shell by using a lathe chuck, aligning the other end face of the thrust bearing shell or the protector shell, polishing and removing burrs at the end face, and turning around the other end after finishing one end;
3) using a centre to push and push inner holes at two ends of the bearing shell or the protector shell, and turning an outer circle by a lathe;
4) and clamping the excircle part of the thrust bearing shell or the protector shell by using a double-end numerical control lathe, and simultaneously processing the rabbet parts and the thread parts at two ends of the thrust bearing shell or the protector shell.
After the end face is trimmed in the step 2), the verticality tolerance of the end face is not more than 0.05 mm.
The spigot parts and the thread parts at the two ends of the thrust bearing shell or the protector shell and the inner hole have the coaxiality tolerance of less than 0.02 mm.
The parallelism tolerance of two end faces of the thrust bearing shell or the protector shell is less than 0.01 mm.
The invention has the following beneficial effects: the invention ensures the requirements of the form and position tolerance of the shell (the coaxiality tolerance is less than or equal to 0.02mm, and the end face parallelism tolerance is less than or equal to 0.01 mm), has high processing efficiency and saves raw materials; the working efficiency is high, the operation is simple, the learning is easy, and the processing difficulty is low.
Detailed Description
A processing technology for a thrust bearing shell or a protector shell comprises inner hole honing, end face deburring, double-top turning and double-end turning, and comprises the following processing steps:
1) honing an inner hole of the thrust bearing shell or the protector shell to a required size;
2) clamping one end of the thrust bearing shell or the protector shell by using a lathe chuck, aligning the other end face of the thrust bearing shell or the protector shell, polishing and removing burrs at the end face, and turning around the other end after finishing one end;
3) using a centre to push and push inner holes at two ends of the bearing shell or the protector shell, and turning an outer circle by a lathe;
4) and clamping the excircle part of the thrust bearing shell or the protector shell by using a double-end numerical control lathe, and simultaneously processing the rabbet parts and the thread parts at two ends of the thrust bearing shell or the protector shell.
After the end face is trimmed in the step 2), the verticality tolerance of the end face is not more than 0.05 mm.
The spigot parts and the thread parts at the two ends of the thrust bearing shell or the protector shell and the inner hole have the coaxiality tolerance of less than 0.02 mm.
The parallelism tolerance of two end faces of the thrust bearing shell or the protector shell is less than 0.01 mm.
Example (b):
honing an inner hole to phi 89-0.100+0.179 mm by using a deep hole honing machine, blanking length 6050+1mm by using a band sawing machine, end face verticality is less than or equal to 1mm, clamping one end of a shell by using a lathe clamping jaw, holding a center frame by the other end, flattening two end faces, polishing an inner opening by using oilstone to remove burrs, cleaning the inner openings at two ends of the shell, checking whether the burrs exist, and wiping two centers of a lathe completely; and (3) double-top turning of the outer circle to phi 101.60+0.3mm, adopting a 35-degree diamond outer circle turning tool, wherein the rotating speed of a lathe spindle is 640r/min, and the feed rate is F0.2 (attention is paid to the processing roughness, the outer circle is smooth and the like). Transferring to a double-head numerical control lathe, placing the shell with the outer circle in a main shaft hole, positioning the left side by using a tool rest positioning tool, and clamping the exposed shell with 75mm by using a hydraulic chuck (the outer circle of the shell is cleaned before each clamping, and the clamp of the machine tool is cleaned); aligning the end face, keeping the total length 601 +/-0.1 mm, ensuring the roughness of the end face to be less than or equal to Ra1.6, ensuring the verticality of the end face to be less than or equal to 0.05mm, ensuring the parallelism of the two end faces to be less than or equal to 0.013 mm, and chamfering the outer part of the end face by 0.5 multiplied by 45 degrees; the vehicle rabbet is phi 92+0.08+0.32 multiplied by 20 +/-0.1 mm, the rabbet roughness is less than or equal to Ra1.6, the coaxiality is less than or equal to phi 0.02, the root part is chamfered by 30 degrees, the end part is chamfered by R1, and the fillet roughness is less than or equal to Ra1.6; turning 3.603-18UNF-3B internal threads, ensuring that the effective length of the threads is 30mm, and ensuring that the coaxiality tolerance of the axis of the internal threads and the reference shaft A is less than or equal to phi 0.08; and (3) requiring the go gauge to go to the no-go gauge, detecting the go gauge and the no-go gauge in time, and adjusting in time when the go gauge is not go or the no-go gauge is not go.
Claims (4)
1. The utility model provides a footstep bearing casing or protector casing processing technology, includes hole honing, neat terminal surface burring, two top turning excircle and double-end car processing, its characterized in that:
the processing technology comprises the following steps:
1) honing an inner hole of the thrust bearing shell or the protector shell to a required size;
2) clamping one end of the thrust bearing shell or the protector shell by using a lathe chuck, aligning the other end face of the thrust bearing shell or the protector shell, polishing and removing burrs at the end face, and turning around the other end after finishing one end;
3) using a centre to push and push inner holes at two ends of the bearing shell or the protector shell, and turning an outer circle by a lathe;
4) and clamping the excircle part of the thrust bearing shell or the protector shell by using a double-end numerical control lathe, and simultaneously processing the rabbet parts and the thread parts at two ends of the thrust bearing shell or the protector shell.
2. The process of claim 1, wherein the step of machining the thrust bearing housing or the protector housing comprises the steps of: after the end face is trimmed in the step 2), the verticality tolerance of the end face is not more than 0.05 mm.
3. The process of claim 1, wherein the step of machining the thrust bearing housing or the protector housing comprises the steps of: the spigot parts and the thread parts at the two ends of the thrust bearing shell or the protector shell and the inner hole have the coaxiality tolerance of less than 0.02 mm.
4. The process of claim 1, wherein the step of machining the thrust bearing housing or the protector housing comprises the steps of: the parallelism tolerance of two end faces of the thrust bearing shell or the protector shell is less than 0.01 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021110787992 | 2021-09-15 | ||
| CN202111078799 | 2021-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114178791A true CN114178791A (en) | 2022-03-15 |
Family
ID=80605095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111531032.0A Pending CN114178791A (en) | 2021-09-15 | 2021-12-15 | Machining process of thrust bearing shell or protector shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114178791A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8601639D0 (en) * | 1985-01-24 | 1986-02-26 | Bosch Gmbh Robert | Rotationally symmetrical housing |
| DD292162A5 (en) * | 1986-05-06 | 1991-07-25 | Kombinat Waelzlager Und Normteile,De | METHOD FOR PRODUCING PREFERRED BELT STORAGE RINGS FROM TUBE MATERIAL |
| US20080169709A1 (en) * | 2005-04-25 | 2008-07-17 | Tae Wook Lee | Spindle Motor and Fabricating Method Thereof |
| CN103372754A (en) * | 2012-04-13 | 2013-10-30 | 于强 | Thrust bearing production process |
| CN103909433A (en) * | 2014-04-04 | 2014-07-09 | 沈阳华扬机械有限公司 | Machining fixture and method of eccentric bushings for cone crushers |
| CN104043802A (en) * | 2014-06-30 | 2014-09-17 | 南车戚墅堰机车车辆工艺研究所有限公司 | Mould and method for manufacturing bimetal plain thrust sliding bearing blank and manufacturing method thereof |
| CN104084759A (en) * | 2014-06-23 | 2014-10-08 | 河南伟彤科技股份有限公司 | Device and method for processing cylinder barrel blank of hydraulic cylinder |
| CN105252223A (en) * | 2015-11-11 | 2016-01-20 | 宝塔实业股份有限公司 | Machining method of extra-large bearing cone rolling bodies with supporting column holes |
-
2021
- 2021-12-15 CN CN202111531032.0A patent/CN114178791A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8601639D0 (en) * | 1985-01-24 | 1986-02-26 | Bosch Gmbh Robert | Rotationally symmetrical housing |
| DD292162A5 (en) * | 1986-05-06 | 1991-07-25 | Kombinat Waelzlager Und Normteile,De | METHOD FOR PRODUCING PREFERRED BELT STORAGE RINGS FROM TUBE MATERIAL |
| US20080169709A1 (en) * | 2005-04-25 | 2008-07-17 | Tae Wook Lee | Spindle Motor and Fabricating Method Thereof |
| CN103372754A (en) * | 2012-04-13 | 2013-10-30 | 于强 | Thrust bearing production process |
| CN103909433A (en) * | 2014-04-04 | 2014-07-09 | 沈阳华扬机械有限公司 | Machining fixture and method of eccentric bushings for cone crushers |
| CN104084759A (en) * | 2014-06-23 | 2014-10-08 | 河南伟彤科技股份有限公司 | Device and method for processing cylinder barrel blank of hydraulic cylinder |
| CN104043802A (en) * | 2014-06-30 | 2014-09-17 | 南车戚墅堰机车车辆工艺研究所有限公司 | Mould and method for manufacturing bimetal plain thrust sliding bearing blank and manufacturing method thereof |
| CN105252223A (en) * | 2015-11-11 | 2016-01-20 | 宝塔实业股份有限公司 | Machining method of extra-large bearing cone rolling bodies with supporting column holes |
Non-Patent Citations (1)
| Title |
|---|
| 杨敬娜等: "工程机械用液压缸加工工艺分析", 《山东工业技术》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220315 |
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| RJ01 | Rejection of invention patent application after publication |