CN104117846B - Installation tool of connecting rod small end lining and using method of installation tool - Google Patents
Installation tool of connecting rod small end lining and using method of installation tool Download PDFInfo
- Publication number
- CN104117846B CN104117846B CN201410353117.8A CN201410353117A CN104117846B CN 104117846 B CN104117846 B CN 104117846B CN 201410353117 A CN201410353117 A CN 201410353117A CN 104117846 B CN104117846 B CN 104117846B
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- China
- Prior art keywords
- clamping plate
- face
- connecting rod
- installation tool
- wrist
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/04—Connecting-rod bearings; Attachments thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/08—Attachment of brasses, bushes or linings to the bearing housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses an installation tool of a connecting rod small end lining and a using method of the installation tool. The installation tool is mainly applied to a connecting rod small end of a stepped structure and comprises a first clamping plate, a second clamping plate and a bolt, wherein the two clamping plates are connected through the bolt. When used, the installation tool is fixed to the connecting rod small end, the connecting rod small end is made to be kept between the two clamping plates, and the position of the lining entering a hole seat is positioned or limited through a positioning surface of the second clamping plate. The installation tool has the advantages of being high in installation environment adaptability, easy and convenient to operate, accurate in axial positioning, efficient in use and the like.
Description
Technical field
The present invention relates to diesel engine connecting bar assembly tool, the stepped construction that more particularly, to a kind of employing cooling method is installed
Connecting rob bushing installation tool and its using method.
Background technology
Connecting rod is one of primary drive part of diesel engine, and in diesel engine, it is the turgor pressure acting on piston-top surface
Power passes to bent axle, again be subject to bent axle driving and with the gas in piston compression cylinder.The small end (microcephaly) of connecting rod passes through to live
Plug pin is connected with piston, and assembling (press-in) metal lining in small end bore, to reduce the piston or piston pin mill to small end bore
Damage, be also more convenient for after liner wear keeping in repair and changing simultaneously.
Bushing and small end bore are interference fit, the general installation method that adopts be bushing is cooled down after load small end bore
Interior, it is fixed in little stomidium seat after it expands, during installation, should ensure that the axial location of bushing requires, particularly with using little
End liner set with piston axial direction positioning mode connecting rod, should ensure that when mounted bushing two ends bulge quantity (expose small end end face away from
From) meet design requirement.
At present for stepped wrist-pin end of connecting rod, axially position when bushing is installed, mainly there is two ways：
Mode 1：Assisted using cushion block special and install.
Connecting rod shank 1 is kept flat on the table during installation, is respectively adopted pad by small end bore sectional view as shown in Figure 1
Connecting rod tip is leveled up by block 5 and cushion block 6 with small end broadside, then the bushing having cooled down 4 is quickly pushed small end bore, to bushing
4 broadsides are contacted with cushion block 4.
Which there is problems that, (1) bushing axially position is inaccurate, and positioning precision is low；(2) need to carry out link rod part
The lifting of part, the operation such as level up, process is more complicated and time-consuming longer, and for large link rod, common workbench cannot meet placement
Require.
Mode 2：Using specific purpose tool, bushing is sent into small end bore to install.
As shown in Fig. 2 first bushing 4 is fixed on specific purpose tool assembly when using (to include bolt 7, clamping plate 8 and locating piece
9), then the bushing having cooled down 4 and tool assembly are quickly pushed small end bore by common cooling, to instrument and wrist-pin end of connecting rod width
While contacting.
Which there is problems that, (1) instrument repeated disassembled and assembled, cooling, complex operation, cool time is long；(2) installation is many
During individual linkage component, if number of tools is less, because instrument need to cool down repeatedly, efficiency of assembling will be affected.
Therefore, those skilled in the art be devoted to developing a kind of to installation environment strong adaptability, easy and simple to handle, axially fixed
Position is accurate, use efficient bush mounting tool.
Content of the invention
For achieving the above object, the invention provides a kind of wrist pin bush installation tool and its using method, its institute
For wrist-pin end of connecting rod include bore, the small end end face positioned at its two ends includes first end face and second end face, first end respectively
Face and second end face are parallel to each other and perpendicular to the central axis being limited by bore, and the spacing of a pair of first end face is more than or waits
Spacing in a pair of second end face.A pair of first end face defines the broadside of wrist-pin end of connecting rod, and a pair of second end face defines connecting rod
The narrow side of small end, i.e. a kind of stepped wrist-pin end of connecting rod.
Installation tool includes first clamping plate, second clamping plate and bolt, and first clamping plate includes the first fastening face, second clamping plate bag
Include the second fastening face, locating surface, and first clamping plate and bolt hole that second clamping plate all includes with bolt cooperation, bolt passes through spiral shell
Keyhole connects first clamping plate and second clamping plate and adjusts relative position between the two, thus it is little installation tool can be fixed on connecting rod
On end, wrist-pin end of connecting rod is made to remain fixed between two clamping plates, now the first fastening face and the second fastening face part or complete respectively
Portion is contacted with a pair of second end face, bushing can near first clamping plate bore one end enter bore, and along central axis to
Another extreme direction of bore moves, until abutting against locating surface.
Further, the shape of installation tool meets：When the spacing of a pair of first end face is more than between a pair of second end face
Away from, and when wrist-pin end of connecting rod remains fixed between two clamping plates, the plane that installation tool is not located with first end face intersects.
Further, including two bolts.
Further, when wrist-pin end of connecting rod remains fixed between two clamping plates, it can abut against all bolts.
Further, second clamping plate is made up of the second folder and keeper, and the second folder includes the second fastening face, keeper
Including locating surface.
Further, the second folder and keeper are integrally formed.
Further, the second folder and keeper are absolute construction, and both of which includes bolt hole.
A kind of method of above-mentioned installation tool, comprises the following steps：
Step 1, bolt is each passed through corresponding bolt hole in first clamping plate and second clamping plate, to connect two pieces of folders
Plate；
Step 2, installation tool is placed on wrist-pin end of connecting rod, so that wrist-pin end of connecting rod is between two clamping plates, make 2 simultaneously
It is cylindrical that bolt (preferably using 2 bolts) is close to wrist-pin end of connecting rod, and tightens bolt, and now wrist-pin end of connecting rod remains fixed at two pieces of folders
Between plate；
Step 3, the bushing after cooling is pushed bore from the one end of bore near first clamping plate, until bushing abuts against
The locating surface of second clamping plate；
Step 4, after bushing consolidate after, looser a bolt, installation tool taken off from wrist-pin end of connecting rod.
Further, in step 2, when wrist-pin end of connecting rod remains fixed between two clamping plates, the first of first clamping plate
Fastening face is partly or entirely contacted with a pair of second end face face of wrist-pin end of connecting rod respectively with the second fastening face of second clamping plate.
Further, in step 2, when wrist-pin end of connecting rod remains fixed between two clamping plates, hole seat and installation tool
Projection in the axial direction of hole seat is intersected, and the projection of hole seat is only intersected with the projection of the locating surface of second clamping plate, i.e. the first folder
The position of plate can not stop bushing access aperture seat, and the position of the locating surface of second clamping plate can stop that bushing gos deep into hole further
Seat, thus play positioning or position-limiting action.
The connecting rob bushing installation tool of the present invention, has that structure is simple, method of operating is easy, efficiency of assembling is high, saves into
This features such as, be that connecting rob bushing installation provides a kind of easier method.There is compared with conventional installation method following effect
Really：
1st, disclosure satisfy that the requirement of high accuracy bushing bulge quantity；
2nd, compare mode 1 it is not necessary to level up big for connecting rod small end, therefore do not need for linkage component to be placed on workbench
Upper operation, all can carry out bushing installation in ground, part pallet, save linkage component lifting operation, cost-effective and when
Between；
3rd, compare mode 2, instrument need not cool down, and instrument is lightweight, structure is simple, easy accessibility, using common
Spanner and clearance gauge can complete to operate, and when especially batch connecting rob bushing assembles, the advantage of efficiency of assembling will become apparent from；
4th, this instrument changes through simple, is equally applicable to non-staged connecting rob bushing and using big end positioning
The liquid nitrogen cooling of connecting rob bushing is installed.In the instrument of change, only need to mate properly long according to wrist-pin end of connecting rod external diameter and width dimensions
, away from, and the requirement according to the monolateral bulge quantity of bushing, the step of corresponding coupling second clamping plate is high for the screw of degree and bolt hole center
Degree, you can meet the installation of the different connecting rob bushings requiring.
Technique effect below with reference to design, concrete structure and generation to the present invention for the accompanying drawing is described further, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description
Fig. 1 is staged wrist-pin end of connecting rod bore sectional view it is shown that existing bushing mounting means 1；
Fig. 2 is staged wrist-pin end of connecting rod bore sectional view it is shown that existing bushing mounting means 2；
Fig. 3 is a kind of bush mounting tool and its mounting means schematic diagram of the present invention；
Fig. 4 is that the schematic diagram having during bulge quantity requirement installed by staged wrist pin bush；
Fig. 5 is the second clamping plate schematic diagram of a preferred embodiment of the present invention；
Fig. 6 is the physical dimension schematic diagram of a preferred embodiment of the present invention.
Specific embodiment
The design philosophy of the installation tool of the present invention is using the narrow side of wrist-pin end of connecting rod and the discrepant feature of broadside thickness, examines
Consider the instrument simple using structure, positioning installed by convenient processing and manufacture plintlet as bushing, be based primarily upon three aspects：
1st, it is fixed on wrist-pin end of connecting rod by fastening means using two clamping plates, make wrist-pin end of connecting rod remain fixed at two pieces of folders
Between plate；
2nd, spacing or positioning is carried out by a piece in two clamping plates to the bushing loading bore；
3rd, when the spacing of a pair of first end face is more than the spacing of a pair of second end face, and wrist-pin end of connecting rod remains fixed at two pieces
When between clamping plate, the plane that installation tool is not located with first end face intersects.
As shown in figure 3, wrist-pin end of connecting rod 2 is located at one end of connecting rod shank 1, wrist-pin end of connecting rod 2 defines bore 3 and central shaft
Line 20, wrist-pin end of connecting rod 2 is step-like, and its two ends end face includes first end face 10 and second end face 11, a pair of first end respectively
Face 10 defines the broadside of wrist-pin end of connecting rod 2, and a pair of second end face 11 defines the narrow side of wrist-pin end of connecting rod 2.Bush mounting tool bag
Include first clamping plate 12, second clamping plate 13 and both securing members can be connected, adopt bolt 14 in the present embodiment as securing member, the
The bolt hole 15 being matched with bolt 14 is included on one clamping plate 12, second clamping plate 13.
First clamping plate 12 and second clamping plate 13 include the first fastening face 16 and the second fastening face 17 respectively, and second clamping plate 13 is also
Including locating surface 18.When first clamping plate 12 and second clamping plate 13 are connected by bolt 14 and by regulating bolt 14, connecting rod is little
End 2 is fixedly clamped between two clamping plates, and now the first fastening face 16 and the second fastening face 17 directly act on a pair the respectively
Biend 11.Bushing 4 can enter in (press-in) hole seat 3 from one end of the hole seat 3 near first clamping plate 12, and can continue
Enter until abutting against the locating surface 18 of second clamping plate 12, locating surface 18 serves and bushing 4 positioned or spacing effect, thus
Its bulge quantity of precise control.Locating surface 18 in Fig. 3 and the second fastening face 17 are in same plane, that is, corresponding to bulge quantity is 0
Situation.
Simultaneously when installation tool clamp linkage small end, its geomery meet its be maintained at a pair of first end face 10 it
Between, that is, its either side away from second end face 11 distance, all less than the spacing of this side first end face 10 and second end face 11.
This structure can meet installation tool and is under various situations (as in workbench, pallet) in connecting rod all can be made
With.
When Fig. 4 shows a case that bushing 4 is installed, bulge quantity Δ is more than 0.Corresponding need to be to the positioning of second clamping plate
Face is adjusted, you can meet installation requirement, as shown in figure 5, being the construction for the second clamping plate 13 during bulge quantity Δ, it is adopted
With stepped construction, ladder height is bulge quantity Δ, and it disclosure satisfy that the installation requirement of high accuracy bushing positioning.Now locating surface
18 and second fastening face 17 be not at same plane, both form a step.Second fastening face 17 clamps even in installation tool
During bar small end, the second end face of laminating side, locating surface 18 positions or limiting bush, thus by controlling locating surface 18 and second
The shoulder height that fastening face 17 is formed is accurately controlled bulge quantity.Second clamping plate 13 can also be divided into two independent knots
Structure, the second folder 21 and keeper 22, both are provided with the bolt hole with bolt cooperation, collectively constitute second clamping plate 13.The
Two folders 21 include the second fastening face 17, and it is directly contacted with second end face in clamp linkage small end, and keeper 22 includes fixed
Plane 18, for bushing positioning or spacing.The advantage of this structure is, when needing to adjust bulge quantity, only need to change corresponding
Second folder 21, has saved tool making cost.
On the other hand, the fastening between for two clamping plates is not limited to bolt mode, is referred to some and has clamping simultaneously
The hand-operated tools of clamped condition can be kept, two clamping plates are respectively arranged on corresponding part.Such as, plumbing combination pliers, F folder, folder
Tight device etc., clamping plate can be arranged on jaw etc. with workpiece direct acting position.
The installation tool of the present invention will consider position dimension, the perforate of bolt hole of two clamping plates fastening face in design
The factors such as position, the position dimension of locating surface, clamping plate thickness, to reach most suitable using effect, below in conjunction with example, to need
Physical dimension to be related to is described further.
Installation tool is fastened using two bolts as shown in Figure 6, and first clamping plate 12 and second clamping plate 13 set respectively
Put two bolts hole 15. and adopted two bolts, on the one hand can fix first clamping plate 12 and second clamping plate 13, make installation tool not
Energy activity is it is ensured that during installing bushing 4, the locating surface 18 in second clamping plate 13 will not change；On the other hand two
Individual bolt can limit bush mounting tool in wrist-pin end of connecting rod 2 radial displacement it is ensured that first clamping plate 12 do not interfere bushing install,
The locating surface 18 of second clamping plate 13 disclosure satisfy that positioning requirements；Meanwhile, with bolts, more convenient bush mounting tool
Installation and removal.Each several part sizing specification is as follows：
φ d wrist-pin end of connecting rod bore 3 diameter；
φ D wrist-pin end of connecting rod 2 external diameter；
T bushing 4 wall thickness；
M bolt specification or nominal diameter；(recommend >=bolt of M8, length is according to the narrow hem width of wrist-pin end of connecting rod
Degree and two clamping plates thickness are chosen)
The width of the second fastening face 17 of the width of C first clamping plate 12 and second clamping plate 13, C=2 (M+2)；
The width of the locating surface 18 of C1 second clamping plate 13, C1=3 × t；
Bolt hole 15 centre distance of A first clamping plate 12 and second clamping plate 13；Computational methods are as follows：
B first clamping plate 12 and second clamping plate 13 length；B=A+3 × M
H1 first clamping plate 12 thickness (recommendation 8mm to 10mm)；
H2 second clamping plate 13 thickness (recommendation 12mm to 14mm)；
Δ shoulder height (shoulder height of locating surface 18 and the second fastening face 17 formation), need to be according to the company of being installed
The design requirement of the monolateral bulge quantity of bushing determines.
The mode of two clamping plates with bolts, disclosure satisfy that positioning requirements installed by high accuracy bushing, and can be real
Existing connecting rod shank installs the requirement of bushing, and the installation effect that can greatly improve connecting rob bushing under any laying state
Rate.
The using method of instrument installed above comprises the steps：
Step 1, bolt is each passed through corresponding bolt hole in first clamping plate and second clamping plate, to connect two pieces of folders
Plate；
Step 2, installation tool is placed on wrist-pin end of connecting rod, so that wrist-pin end of connecting rod is between two clamping plates, and tighten spiral shell
Bolt, now wrist-pin end of connecting rod remain fixed between two clamping plates；During clamp linkage small end, the first fastening face and the second fastening face need
Contact with a pair of second end face face respectively, and be necessary to ensure that the position of first clamping plate can not stop bushing access aperture seat, second
The position of the locating surface of clamping plate can stop that bushing gos deep into hole seat further, thus playing positioning or position-limiting action；According to above-mentioned
Structure design size, when wrist-pin end of connecting rod abuts against bolt, you can meet the above position for first clamping plate and second clamping plate
Put requirement.
Step 3, the bushing after cooling is pushed bore from the one end of bore near first clamping plate, until bushing abuts against
The locating surface of second clamping plate；
Step 4, looser a bolt, installation tool is taken off from wrist-pin end of connecting rod.
The preferred embodiment of the present invention described in detail above.It should be appreciated that the ordinary skill of this area need not be created
The property made work just can make many modifications and variations according to the design of the present invention.Therefore, all technical staff in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technology
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (9)
1. a kind of wrist pin bush installation tool, described wrist-pin end of connecting rod includes bore, and the small end end face positioned at its two ends is respectively
Including first end face and second end face, described first end face and described second end face are parallel to each other and perpendicular to by described bore institute
The central axis limiting, the spacing of first end face described in a pair is more than or equal to the spacing of second end face described in a pair, its feature
It is, described installation tool includes first clamping plate, second clamping plate and bolt, described first clamping plate includes the first fastening face, described
Second clamping plate includes the second fastening face, locating surface, and described first clamping plate and described second clamping plate all include and described bolt
The bolt hole of cooperation, described bolt connects described first clamping plate and described second clamping plate by described bolt hole and adjusts between the two
Relative position, thus described installation tool can be fixed on described wrist-pin end of connecting rod, so that described wrist-pin end of connecting rod is remained fixed at
Between two clamping plates, now described first fastening face and described second fastening face distinguish part or all of and the second end described in a pair
Face contacts, and bushing can enter described bore from one end of the described bore near described first clamping plate, and along described central axis
Move to another extreme direction of described bore, until abutting against described locating surface；
The shape of described installation tool meets：When the spacing of first end face described in a pair is more than described in a pair between second end face
Away from, and when described wrist-pin end of connecting rod remains fixed between described two clamping plates, described installation tool not with described first end face institute
Plane intersect.
2. installation tool as claimed in claim 1 is it is characterised in that include two described bolts.
3. installation tool as claimed in claim 2 is it is characterised in that press from both sides when described wrist-pin end of connecting rod remains fixed at described two pieces
When between plate, it can abut against all described bolts.
4. installation tool as claimed in claim 1 is it is characterised in that described second clamping plate is by the second folder and keeper group
Become, described second folder includes described second fastening face, and described keeper includes locating surface.
5. installation tool as claimed in claim 4 is it is characterised in that described second folder and described keeper are integrally formed.
6. installation tool as claimed in claim 4 is it is characterised in that described second folder and described keeper are independent knots
Structure, and both of which includes described bolt hole.
7. a kind of method using installation tool as claimed in claim 1 is it is characterised in that comprise the following steps：
Step 1, bolt is each passed through corresponding bolt hole in first clamping plate and second clamping plate, to connect two clamping plates；
Step 2, described installation tool is placed on wrist-pin end of connecting rod, so that described wrist-pin end of connecting rod is between described two clamping plates,
And tighten described bolt, thus described wrist-pin end of connecting rod is remained fixed between described two clamping plates；
Step 3, the bushing after cooling is pushed described bore from the one end of bore near described first clamping plate, until described lining
Set abuts against the locating surface of described second clamping plate；
Step 4, unscrew described bolt, described installation tool is taken off from described wrist-pin end of connecting rod.
8. method as claimed in claim 7 is it is characterised in that in described step 2, when described wrist-pin end of connecting rod remains fixed at
When between described two clamping plates, the second fastening face part respectively of the first fastening face of described first clamping plate and described second clamping plate
Or all contact with a pair of second end face face of described wrist-pin end of connecting rod.
9. method as claimed in claim 8 is it is characterised in that in described step 2, when described wrist-pin end of connecting rod remains fixed at
When between described two clamping plates, the projection in the axial direction of described hole seat of hole seat and described installation tool is intersected, and described hole seat
Projection only intersect with the projection of the described locating surface of described second clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353117.8A CN104117846B (en) | 2014-07-23 | 2014-07-23 | Installation tool of connecting rod small end lining and using method of installation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353117.8A CN104117846B (en) | 2014-07-23 | 2014-07-23 | Installation tool of connecting rod small end lining and using method of installation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104117846A CN104117846A (en) | 2014-10-29 |
| CN104117846B true CN104117846B (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353117.8A Active CN104117846B (en) | 2014-07-23 | 2014-07-23 | Installation tool of connecting rod small end lining and using method of installation tool |
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| CN (1) | CN104117846B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458662B (en) * | 2015-12-31 | 2017-11-17 | 杭州九龙机械制造有限公司 | Connecting rod presses bushing fixture pressure head |
| CN115026516A (en) * | 2022-06-20 | 2022-09-09 | 常州远东连杆集团有限公司 | Finishing lining hole processing technology for internal combustion engine connecting rod |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6138828A (en) * | 1984-07-30 | 1986-02-24 | Hitachi Seiki Co Ltd | Automatic assembly device of semicircular bush |
| DE4037429A1 (en) * | 1990-11-14 | 1992-05-21 | Ex Cell O Gmbh | MACHINING PROCESS AND PLANT FOR MACHINE PARTS HAVING A BEARING EYE |
| CN101362286B (en) * | 2008-09-26 | 2010-06-09 | 广东四会实力连杆有限公司 | Connecting rod bushing press-loading device and method |
| CN102029502B (en) * | 2011-01-10 | 2013-01-09 | 襄樊市长源东谷实业有限公司 | Hot pressing process of connecting rod piston pin hole |
| CN102699667B (en) * | 2012-07-02 | 2014-07-16 | 河北华北柴油机有限责任公司 | Tool for pressing small copper sleeve of engine connecting rod |
| CN203665023U (en) * | 2013-12-10 | 2014-06-25 | 东风朝阳朝柴动力有限公司 | Inclined-cutting type connecting rod lining press-in device with automatic positioning function |
| CN204035962U (en) * | 2014-07-23 | 2014-12-24 | 中国船舶重工集团公司第七一一研究所 | A kind of wrist pin bush orientation tool |
| CN203993742U (en) * | 2014-07-23 | 2014-12-10 | 中国船舶重工集团公司第七一一研究所 | A kind of wrist pin bush erecting tools |
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2014
- 2014-07-23 CN CN201410353117.8A patent/CN104117846B/en active Active
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| CN104117846A (en) | 2014-10-29 |
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