CN201295831Y - Press mounting protection and guide structure of connecting rod bearing bush - Google Patents
Press mounting protection and guide structure of connecting rod bearing bush Download PDFInfo
- Publication number
- CN201295831Y CN201295831Y CNU2008202165225U CN200820216522U CN201295831Y CN 201295831 Y CN201295831 Y CN 201295831Y CN U2008202165225 U CNU2008202165225 U CN U2008202165225U CN 200820216522 U CN200820216522 U CN 200820216522U CN 201295831 Y CN201295831 Y CN 201295831Y
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- Prior art keywords
- base
- connecting rod
- sheath
- bearing shell
- dynamic head
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- 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.)
- Expired - Lifetime
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- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 241001484259 Lacuna Species 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a connecting rod axle bush pressure equipment protects and leads structure, it includes sliding die frame, moves the pressure head, slides core and base. The middle part of the bottom surface of the sliding plate at the upper end of the sliding die frame is fixedly connected with a dynamic pressure head by a screw, and the outer wall of the dynamic pressure head is provided with an outer protective guide structure which is composed of a pressure spring and a sheath screw and can axially extend and retract. The base is arranged on a bottom plate at the lower end of the sliding die frame, an inner hole of the base is coaxial with the dynamic pressure head, an inner hole of the base is in clearance fit with the sliding core, a pressure spring is arranged in an axial inner hole with the downward sliding core to form an axial telescopic structure, and the top end of the sliding core is in clearance fit with an inner hole of the bearing bush to form an inner wall protection and guide structure. The positioning steps of the positioning pin are equal to the base in height, and the center distance between the positioning pin and the base is equal to the center distance between holes at two ends of the connecting rod. The connecting rod is pressed and mounted with the bearing bush under the protection of the protecting and guiding structure under the condition that the holes at the two ends are completely positioned, the bearing bush is not deformed during pressing and mounting, the product quality is stable, and the production efficiency is high.
Description
Technical field
The utility model relates to a kind of molding device, particularly a kind of molding device with protection-guide structure.
Background technology
Connecting rod is the critical component of transferring power in the engine, and its quality quality directly influences engine quality.Connecting rod and bent axle abutting end are a pair of friction pairs, dispose the non-ferrous metal bearing shell to reduce friction in tie rod holes.Bearing shell is an interference fit with cooperating of connecting rod, and prior art adopts press can realize fast installing in batches.But the bearing shell rigidity of thin-wall construction is poor, press-fit in the process yielding, thereby influence the fit quality of bearing shell and tie rod holes.
The utility model content
The utility model is primarily aimed at the deficiencies in the prior art, proposes a kind of connecting rod bearing shell press mounting protection-guide structure simple in structure, and this structure effectively protects thin-wall bearing shell to be pressed in the tie rod holes smoothly in press-fiting process.
The utility model is achieved through the following technical solutions technical goal.
Connecting rod bearing shell press mounting protection-guide structure, it comprises the sliding form frame of frame structure and supporting dynamic head, slide core and base thereof.Described dynamic head is fixedly connected in the middle part of the slide plate bottom surface of sliding form frame by screw, and dynamic head moves up and down with slide plate.Base is coaxial with dynamic head, and base is installed at the end of sliding form frame.Its improvements are: the sheath of described dynamic head outer wall suit matched in clearance, the sheath internal diameter is equal to the internal diameter of base, the sheath internal diameter cooperates formation outer wall protection-guide structure with the crest clearance of bearing shell, sheath outer wall seam constitutes the axial stretching structure to suit compression spring between the dynamic head stiff end, and endwisely slipping of the relative dynamic head of sheath is spacing by screw.Described base endoporus and slide core matched in clearance are equipped with compression spring and constitute the axial stretching structure in the slide core axial bore down, the slide core top cooperates formation inwall protection-guide structure with bush gap, and endwisely slipping of the relative base of slide core is spacing by screw.Described alignment pin and base stand upright on the base plate of sliding form frame side by side.
In the said structure, interporal lacuna is sleeved on the slide core in the crank bore, its end face terminates in the base upper surface, the bearing shell that gap, slide core top suit is press-fited, the sheath that moves down with dynamic head at first is enclosed within by pressure bearing shell outer wall, and sheath is motionless with respect to the dynamic head that moves down, and flushes with the dynamic head bottom until sheath, till just bearing shell was pressed in the tie rod holes, sheath press-fited with moving in order to a new round on the dynamic head.The positioning step and the base of alignment pin are contour, and the centre-to-centre spacing of alignment pin and base equals the centre-to-centre spacing of connecting rod two stomidiums, the small end endoporus matched in clearance of alignment pin top end diameter and connecting rod.
The utility model compared with prior art has following good effect:
1, press mounting protection-guide structure is simple, and is easy to manufacture;
2, the bearing shell inside and outside wall of thin-walled all the time by protecting and leading inside and outside sheath and the slide core, press-fits and can not cause bearing shell distortion, constant product quality in press-fiting process;
3, the connecting rod tip endoporus cooperates with bearing shell by the slide core location, and the wrist-pin end of connecting rod endoporus is located by alignment pin, press-fits the position unification, the production efficiency height.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
The utility model is described in further detail with reference to the accompanying drawings below.
Connecting rod bearing shell press mounting jacket structure shown in the drawings, it is to be framework with sliding form frame 1, the middle part, slide plate 1.1 bottom surfaces that is in sliding form frame 1 upper end is by screw 2.2 fixedly connected dynamic heads 2, the sheath 2.4 of dynamic head 2 outer wall suit matched in clearance, sheath 2.4 outer wall seams constitute the axial stretching structure to suit compression spring between dynamic head 2 stiff ends 2.3, and endwisely slipping of sheath 2.4 relative dynamic heads 2 is spacing by screw 2.1.Sheath 2.4 internal diameters are equal to the internal diameter of base 6 in the utility model, and this internal diameter cooperates with the crest clearance of bearing shell 7.Be in mounting seat 6 on the base plate 1.2 of sliding form frame 1 lower end, base 6 endoporus are coaxial with dynamic head 2, base 6 endoporus and slide core 5 matched in clearance, pressure bullet 5.2 is housed in slide core 5 and the axial bore down constitutes the axial stretching structures, slide core 5 is spacing by screw 5.1 with endwisely slipping of relative base 6.In the utility model during the axial natural stretching, extension situation of sheath 2.4, the length that its lower end exceeds dynamic head 2 equals to be press-fited the width of bearing shell 7.The interior interporal lacuna of connecting rod 4 big ends that need press-fit bearing shell 7 is sleeved on the slide core 5, and its end face terminates in base 6 upper surfaces, the bearing shell 7 that gap, slide core 5 top suit is press-fited, the protection-guide structure of formation bearing shell 7 inwalls.The positioning step of described alignment pin 3 and base 5 are contour, and the centre-to-centre spacing of alignment pin 3 and base 6 equals the centre-to-centre spacing of 4 liang of stomidiums of connecting rod, the small end endoporus matched in clearance of alignment pin 3 top end diameter and connecting rod 4.Connecting rod 4 is made bearing shell 7 and is press-fited under the situation that two stomidiums are located fully, the sheath 2.4 that moves down with dynamic head 2 at first is enclosed within by pressure bearing shell 7 outer walls, constitute the protection-guide structure of bearing shell 7 outer walls, sheath 2.4 is motionless with respect to the dynamic head 2 that moves down, flush until the bottom of sheath 2.4 with dynamic head 2, till just bearing shell 7 was pressed in connecting rod 4 holes, sheath 2.4 press-fited with moving in order to a new round on the dynamic head 2.In the utility model, bearing shell 7 protection that inside and outside wall places protection-guide structure all the time in press-fiting process of thin-walled, bearing shell is indeformable when press-fiting, constant product quality, production efficiency height.
Claims (3)
1, a kind of connecting rod bearing shell press mounting protection-guide structure, it comprises the sliding form frame (1) of frame structure and supporting dynamic head (2), slide core (5) and base (6) thereof; Described dynamic head (2) is fixedly connected in the middle part of slide plate (1.1) bottom surface of sliding form frame (1) by screw (2.2), and dynamic head (2) moves up and down with slide plate (i.1); Base (6) is coaxial with dynamic head (2), and base (6) is installed on the base plate (1.2) of sliding form frame (1); It is characterized in that: the sheath (2.4) of described dynamic head (2) outer wall suit matched in clearance, sheath (2.4) internal diameter is equal to the internal diameter of base (6), sheath (2.4) internal diameter cooperates formation outer wall protection-guide structure with the crest clearance of bearing shell (7), sheath (2.4) outer wall seam constitutes the axial stretching structure to suit compression spring (2.3) between dynamic head (2) stiff end, and endwisely slipping of the relative dynamic head (2) of sheath (2.4) is spacing by screw (2.1); Described base (6) endoporus and slide core (5) matched in clearance, compression spring (5.2) is housed in slide core (5) axial bore down constitutes the axial stretching structure, slide core (5) top and bearing shell (7) matched in clearance constitute the inwall protection-guide structure, and endwisely slipping of the relative base (6) of slide core (5) is spacing by screw (5.1); Described alignment pin (3) stands upright on the base plate (1.2) of sliding form frame (1) side by side with base (6).
2, connecting rod bearing shell press mounting protection-guide structure according to claim 1 is characterized in that: during the axial natural stretching, extension situation of described sheath (2.4), the length that its lower end exceeds dynamic head (2) equals to be press-fited the width of bearing shell (7).
3, connecting rod bearing shell press mounting protection-guide structure according to claim 1, it is characterized in that: the centre-to-centre spacing of described alignment pin (3) and base (6) equals the centre-to-centre spacing of connecting rod (4) two stomidiums, alignment pin (3) positioning step and base (6) are contour, the small end endoporus matched in clearance of alignment pin (3) top end diameter and connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202165225U CN201295831Y (en) | 2008-10-31 | 2008-10-31 | Press mounting protection and guide structure of connecting rod bearing bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202165225U CN201295831Y (en) | 2008-10-31 | 2008-10-31 | Press mounting protection and guide structure of connecting rod bearing bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201295831Y true CN201295831Y (en) | 2009-08-26 |
Family
ID=41041792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202165225U Expired - Lifetime CN201295831Y (en) | 2008-10-31 | 2008-10-31 | Press mounting protection and guide structure of connecting rod bearing bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201295831Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248395A (en) * | 2010-12-13 | 2011-11-23 | 苏州新区科兴威尔电子有限公司 | Pressure assembly mechanism |
| CN102328192A (en) * | 2010-07-12 | 2012-01-25 | 鸿富锦精密工业（深圳）有限公司 | Assembling tool |
| CN102554860A (en) * | 2011-12-14 | 2012-07-11 | 苏州工业园区高登威科技有限公司 | Multilevel transmission structure suitable for press fitting transmission case lining |
| CN103009041A (en) * | 2012-12-11 | 2013-04-03 | 力帆实业(集团)股份有限公司 | Bearing pressing tool for crankcase |
| CN103056643A (en) * | 2012-12-26 | 2013-04-24 | 青特集团有限公司 | Rubber bushing press fitting device and press fitting process |
| CN103302474A (en) * | 2013-06-28 | 2013-09-18 | 江苏太平洋精锻科技股份有限公司 | Positioning and press-mounting device for gear shaft hole liner thin-wall sleeve |
| CN103836081A (en) * | 2013-12-27 | 2014-06-04 | 瓦房店轴承集团有限责任公司 | Locking device for inner rings of pulley bearing |
| CN112963446A (en) * | 2021-01-26 | 2021-06-15 | 中国航发贵州黎阳航空动力有限公司 | Guide device and assembling and disassembling method of lubricating oil pump with eccentric boss |
| CN118046209A (en) * | 2024-04-16 | 2024-05-17 | 成都航利航空科技有限责任公司 | Anti-interference precise positioning reciprocating type assembly tool and assembly method |
-
2008
- 2008-10-31 CN CNU2008202165225U patent/CN201295831Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328192A (en) * | 2010-07-12 | 2012-01-25 | 鸿富锦精密工业（深圳）有限公司 | Assembling tool |
| CN102328192B (en) * | 2010-07-12 | 2013-07-03 | 鸿富锦精密工业（深圳）有限公司 | Assembling tool |
| CN102248395A (en) * | 2010-12-13 | 2011-11-23 | 苏州新区科兴威尔电子有限公司 | Pressure assembly mechanism |
| CN102554860B (en) * | 2011-12-14 | 2014-07-02 | 苏州工业园区高登威科技有限公司 | Multilevel transmission structure suitable for press fitting transmission case lining |
| CN102554860A (en) * | 2011-12-14 | 2012-07-11 | 苏州工业园区高登威科技有限公司 | Multilevel transmission structure suitable for press fitting transmission case lining |
| CN103009041A (en) * | 2012-12-11 | 2013-04-03 | 力帆实业(集团)股份有限公司 | Bearing pressing tool for crankcase |
| CN103056643A (en) * | 2012-12-26 | 2013-04-24 | 青特集团有限公司 | Rubber bushing press fitting device and press fitting process |
| CN103302474A (en) * | 2013-06-28 | 2013-09-18 | 江苏太平洋精锻科技股份有限公司 | Positioning and press-mounting device for gear shaft hole liner thin-wall sleeve |
| CN103302474B (en) * | 2013-06-28 | 2015-07-29 | 江苏太平洋精锻科技股份有限公司 | Gear shaft holes liner thin-wall sleeve location press-loading apparatus |
| CN103836081A (en) * | 2013-12-27 | 2014-06-04 | 瓦房店轴承集团有限责任公司 | Locking device for inner rings of pulley bearing |
| CN112963446A (en) * | 2021-01-26 | 2021-06-15 | 中国航发贵州黎阳航空动力有限公司 | Guide device and assembling and disassembling method of lubricating oil pump with eccentric boss |
| CN112963446B (en) * | 2021-01-26 | 2022-12-06 | 中国航发贵州黎阳航空动力有限公司 | Assembling and disassembling method for lubricating oil pump with eccentric boss |
| CN118046209A (en) * | 2024-04-16 | 2024-05-17 | 成都航利航空科技有限责任公司 | Anti-interference precise positioning reciprocating type assembly tool and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090826 Effective date of abandoning: 20081031 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20090826 Effective date of abandoning: 20081031 |