CN102168710B - Technical screw for connecting rod manufacturing of industrial reciprocating compressor and manufacturing method thereof - Google Patents
Technical screw for connecting rod manufacturing of industrial reciprocating compressor and manufacturing method thereof Download PDFInfo
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- CN102168710B CN102168710B CN 201110097591 CN201110097591A CN102168710B CN 102168710 B CN102168710 B CN 102168710B CN 201110097591 CN201110097591 CN 201110097591 CN 201110097591 A CN201110097591 A CN 201110097591A CN 102168710 B CN102168710 B CN 102168710B
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- connecting rod
- screw
- tenon structure
- convex surface
- arc convex
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Abstract
The invention provides a technical screw for connecting rod manufacturing of an industrial reciprocating compressor which can be recycled and save materials. The technical screw comprise a circular rod two ends of which are provided with screw threads; and the middle part of the circular rod is a polished rod. The technical screw is characterized in that two outer ends of the circular rod two ends of which are provided with the screw threads are rectangular wedge structures; the outer circular surface of the circular rod is provided with an arc groove; and radius of the arc groove equals to the radius of the big head of the connecting rod required to be manufactured.
Description
Technical field
The present invention relates to a kind of process screw, be specially the process screw that the industrial reciprocating compressor Machining of Connecting Rod is used, the present invention also provides the processing method of making this process screw.
Background technique
Connecting rod is one of strength member in the reciprocating compressor, and its major part is connected with bent axle, and the microcephaly links to each other with piston element by crosshead, and its effect is to change rotatablely moving of bent axle to be the to-and-fro motion of piston.Connecting rod bears compressive force and the tensile force that the cycle changes in the course of the work, must satisfy enough strength and stiffness, and in order to reduce reciprocal inertia force and to take up room, connecting rod also must possess the characteristics that quality is little, volume is little simultaneously.
The general technology route of Machining of Connecting Rod is: reconditioning profile, heat treatment, milling two planes, grinding plane, bore expand hinge microcephaly hole, mill out the connecting rod shank lid, mill the drop face, grinding junction plane, hell shoulder, bore tapping hole, check, play pairing number, assembly parts, boring big end hole, brill microcephaly oilhole, flaw detection.During general boring crank pin end pore, connecting rod shank 1 must be connected (see figure 1) with connecting rod cap 2 usefulness connecting-rod bolts 3, adopt special fixture to be fixed on and carry out bore hole on the boring machine, with the pairing of assurance institute bore hole with accurate.
But, have the industrial reciprocal compressor connecting rod of some now, its big end hole diameter is the break-through connecting rod bolt holes, for fear of destroying connecting-rod bolts, the adopting process bolt connects connecting rod shank and connecting rod cap during bore hole, but each bore hole all can destroy new service bolt, has caused larger waste, the waste raw material.
Summary of the invention
For the problems referred to above, the invention provides the process screw that the industrial reciprocating compressor Machining of Connecting Rod is used, it can be reused, save material.
The process screw that the industrial reciprocating compressor Machining of Connecting Rod is used, its technological scheme is such: it comprises the round bar of both end thread, the middle part of described round bar is polished rod, it is characterized in that: the side of being, the two outer ends tenon structure of the round bar of described both end thread, described polished rod periphery is provided with arc groove, and the radius of described arc groove equates with the radius of the major part of the connecting rod that needs to make.
It is further characterized in that: a side of at least one described side's tenon structure is arc convex surface.
The manufacture method of the process screw that the industrial reciprocating compressor Machining of Connecting Rod is used is characterized in that:
Its concrete processing method is as follows:
(1) process respectively two ends screw thread, two ends side's tenon structure of round bar, a side of guaranteeing at least one side's tenon structure is arc convex surface;
(2) before for the first time boring crank pin end pore, with locating stud with connecting rod shank, packing ring and connecting rod cap are installed the location, with the technique nut of the process screw of not yet opening arc groove and correspondence that it is fastening again, guarantee that one of them is outside with the arc convex surface of the square tenon structure of arc convex surface, the plane of the party's tenon structure must be horizontal, can be guaranteed by the horizontal cushion block of processing tool, the technique nut be screwed to prescribed torque, after tightening, the band arc convex surface end of the party's tenon structure of process screw is cooperated line with connecting rod shank, the connecting rod bolt holes terminal surface is mutually neat on line and the connecting rod shank, with mark screw axial extended position, axially locating when conveniently repeating to install.
(3) will be fastening good connecting rod clamping bore hole well and on request on boring machine.
(4) after the connnecting rod big end bore hole is finished, dismantle each part, purpose made technology screw and technique nut and frock one are reached the same goal put, in order to reuse.
When (5) reusing, with the first time installation method identical, the arc convex surface of the square tenon structure of assurance purpose made technology screw is outside, and line is mutually neat with connecting rod shank screw terminal surface, utilize the plane of horizontal cushion block guarantor tenon structure to be horizontal to realize radial location when process screw is installed, tighten the technique nut to prescribed torque, again repeating step (3), (4).
Make the big end hole diameter during the connecting rod of break-through connecting rod bolt holes, connecting rod shank and connecting rod cap are with adopting the process screw after the structure of the present invention to be connected, and so that the center superposition of the center of arc groove and corresponding big end hole, and then bore hole, this process screw can be reused, save material when making connecting rod of the same race.
Description of drawings
Assembling schematic representation when Fig. 1 is general connecting rod boring big end hole;
Fig. 2 is structural representation of the present invention;
Fig. 3 is to be the connecting rod assembling schematic representation that adopts process screw of the present invention.
Embodiment
See Fig. 2, it comprises the round bar 2 of both end thread 1, the middle part of round bar 2 is polished rod 3, the side of being, the two outer ends tenon structure 4 of the round bar 2 of both end thread 1, described polished rod 3 peripheries are provided with arc groove 5, the radius R of described arc groove 5 equates that with the radius R of the big end hole of the connecting rod that needs to make a side of at least one side's tenon structure 4 is arc convex surface.
Adopt the connecting rod assembling schematic representation of process screw of the present invention, see Fig. 3, it comprises connecting rod shank 6, connecting rod cap 7, be fastenedly connected the center of the arc groove 5 of process screw 8 and the center superposition of corresponding big end hole 10 between connecting rod shank 6, the connecting rod cap 7 by process screw 8, the technique nut 9 that is arranged in upper-lower position.
The manufacture method of the process screw that the industrial reciprocating compressor Machining of Connecting Rod is used, its concrete processing method is as follows:
(1) process respectively two ends screw thread 1, two ends side's tenon structure 4 of round bar 2, a side of guaranteeing at least one side's tenon structure 4 is arc convex surface;
(2) before for the first time boring crank pin end pore, with locating stud 11 with connecting rod shank 6, packing ring 12 and connecting rod cap 7 are installed the location, with the technique nut 9 of the process screw of not yet opening arc groove and correspondence that it is fastening again, guarantee with square tenon structure 4 arc convex surface with arc convex surface outside, the plane of the party's tenon structure 4 must be horizontal, can be guaranteed by the horizontal cushion block of processing tool, technique nut 9 be screwed to prescribed torque, after tightening, the party's tenon structure 4 band arc convex surface ends of process screw are cooperated line with connecting rod shank 6, the connecting rod bolt holes terminal surface is mutually neat on line and the connecting rod shank 6, with marking process screw axial extended position, axially locating when conveniently repeating to install.
(3) will be fastening good connecting rod clamping bore hole well and on request on boring machine.
(4) after crank pin end pore 10 bore holes are finished, dismantle each part, purpose made technology screw 8 is reached the same goal with technique nut 9 and frock one put, in order to reuse.
When (5) reusing, with the first time installation method identical, the arc convex surface with a square tenon structure 4 of arc convex surface that guarantees purpose made technology screw 8 is outside, and line is mutually neat with connecting rod shank screw terminal surface, utilize the plane of horizontal cushion block guarantor tenon structure 4 to be horizontal to realize radial location when process screw 8 is installed, tighten technique nut 9 to prescribed torque, again repeating step (3), (4).
Claims (2)
1. the process screw used of industrial reciprocating compressor Machining of Connecting Rod, it comprises the round bar of both end thread, the middle part of described round bar is polished rod, it is characterized in that: the side of being, the two outer ends tenon structure of the round bar of described both end thread, described polished rod periphery is provided with arc groove, and the radius of described arc groove equates with the radius of the major part of the connecting rod that needs to make; One side of at least one described side's tenon structure is arc convex surface.
2. the manufacture method of the process screw used of industrial reciprocating compressor Machining of Connecting Rod is characterized in that:
Its concrete processing method is as follows:
(1) process respectively two ends screw thread, two ends side's tenon structure of round bar, a side of guaranteeing at least one side's tenon structure is arc convex surface;
(2) before for the first time boring crank pin end pore, with locating stud with connecting rod shank, packing ring and connecting rod cap are installed the location, with the technique nut of the process screw of not yet opening arc groove and correspondence that it is fastening again, guarantee that one of them is outside with the arc convex surface of the square tenon structure of arc convex surface, the plane of the party's tenon structure must be horizontal, can be guaranteed by the horizontal cushion block of processing tool, the technique nut be screwed to prescribed torque, after tightening, the band arc convex surface end of the party's tenon structure of process screw is cooperated line with connecting rod shank, the connecting rod bolt holes terminal surface is mutually neat on line and the connecting rod shank, with mark screw axial extended position, axially locating when conveniently repeating to install;
(3) will be fastening good connecting rod clamping bore hole well and on request on boring machine;
(4) after the connnecting rod big end bore hole is finished, dismantle each part, purpose made technology screw and technique nut and frock one are reached the same goal put, in order to reuse;
When (5) reusing, with the first time installation method identical, the arc convex surface of the square tenon structure of assurance purpose made technology screw is outside, and line is mutually neat with connecting rod shank screw terminal surface, utilize the plane of horizontal cushion block guarantor tenon structure to be horizontal to realize radial location when process screw is installed, tighten the technique nut to prescribed torque, again repeating step (3), (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110097591 CN102168710B (en) | 2011-04-19 | 2011-04-19 | Technical screw for connecting rod manufacturing of industrial reciprocating compressor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110097591 CN102168710B (en) | 2011-04-19 | 2011-04-19 | Technical screw for connecting rod manufacturing of industrial reciprocating compressor and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168710A CN102168710A (en) | 2011-08-31 |
| CN102168710B true CN102168710B (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110097591 Expired - Fee Related CN102168710B (en) | 2011-04-19 | 2011-04-19 | Technical screw for connecting rod manufacturing of industrial reciprocating compressor and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102168710B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB750894A (en) * | 1952-07-04 | 1956-06-20 | Ledloy Ltd | Improvements in or relating to bolts and like fastening members |
| CN2042126U (en) * | 1988-07-15 | 1989-08-02 | 张保和 | Dual-purpose hanger for bamboo screen and cotton curtain |
| US5433570A (en) * | 1992-05-15 | 1995-07-18 | Sfs Industrie Holding Ag | Screw with unthreaded portion formed for absorbing bending loads |
| EP0905390A2 (en) * | 1997-09-25 | 1999-03-31 | Ishigame Kogyo Co., Ltd. | Lock nut device |
| FR2774741A1 (en) * | 1998-02-12 | 1999-08-13 | Rene Delhome | fixing plug for support of objets d'art |
| DE10343538A1 (en) * | 2003-09-19 | 2005-05-19 | Maytec Aluminium Systemtechnik Gmbh | Connection element with spring protection e.g. for connection of pole based elements, has spring supported opposite vehicle chassis and connected to wishbone on both sides of vehicle and extends in vehicle longitudinal direction |
| CN202031949U (en) * | 2011-04-19 | 2011-11-09 | 无锡压缩机股份有限公司 | Process screw for processing industrial reciprocating compressor connecting rods |
-
2011
- 2011-04-19 CN CN 201110097591 patent/CN102168710B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB750894A (en) * | 1952-07-04 | 1956-06-20 | Ledloy Ltd | Improvements in or relating to bolts and like fastening members |
| CN2042126U (en) * | 1988-07-15 | 1989-08-02 | 张保和 | Dual-purpose hanger for bamboo screen and cotton curtain |
| US5433570A (en) * | 1992-05-15 | 1995-07-18 | Sfs Industrie Holding Ag | Screw with unthreaded portion formed for absorbing bending loads |
| EP0905390A2 (en) * | 1997-09-25 | 1999-03-31 | Ishigame Kogyo Co., Ltd. | Lock nut device |
| FR2774741A1 (en) * | 1998-02-12 | 1999-08-13 | Rene Delhome | fixing plug for support of objets d'art |
| DE10343538A1 (en) * | 2003-09-19 | 2005-05-19 | Maytec Aluminium Systemtechnik Gmbh | Connection element with spring protection e.g. for connection of pole based elements, has spring supported opposite vehicle chassis and connected to wishbone on both sides of vehicle and extends in vehicle longitudinal direction |
| CN202031949U (en) * | 2011-04-19 | 2011-11-09 | 无锡压缩机股份有限公司 | Process screw for processing industrial reciprocating compressor connecting rods |
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| Publication number | Publication date |
|---|---|
| CN102168710A (en) | 2011-08-31 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20190419 |