CN206479402U - A kind of connecting rod fatigue test clamper - Google Patents
A kind of connecting rod fatigue test clamper Download PDFInfo
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- CN206479402U CN206479402U CN201720015743.5U CN201720015743U CN206479402U CN 206479402 U CN206479402 U CN 206479402U CN 201720015743 U CN201720015743 U CN 201720015743U CN 206479402 U CN206479402 U CN 206479402U
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- connecting rod
- plug
- mounting hole
- fatigue test
- accommodating chamber
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Abstract
The utility model, which is related in connecting rod technical field of measurement and test, more particularly to a kind of connecting rod fatigue test clamper, including chuck body and plug, chuck body, is formed with the accommodating chamber for accommodating link rod head and the mounting hole for installing plug；Side wall of the mounting hole by chuck body outside to inside through accommodating chamber is connected with accommodating chamber, and plug coordinates with link rod head gap, and leaves lubrication gap between the outer wall and mounting hole of plug；The oil supply gallery with lubrication gap outside chuck body is communicated with chuck body.The rigid shock that small end of connecting rod is produced with mandrel lubrication effect difference when Mandrel Rotating eliminates prior art intermediate gap examination small end of connecting rod fillet during experiment, plug is rotated in link rod head is more nearly connecting rod rotation of the piston pin in connecting rod in actual use, high lubricating effect, so that the reduction degree of connecting rod fatigue test is high, especially improves and examine the problem of not in place, plug is easily damaged in existing process of the test at small end of connecting rod knuckle.
Description
Technical field
The utility model is related to connecting rod technical field of measurement and test, more particularly to a kind of connecting rod fatigue test clamper.
Background technology
Connecting rod fatigue test needs respectively to fix connecting rod size two ends, along one load of shaft direction pre-add, Ran Houzai
Connecting rod one end applies dynamic alternate load until destruction, observes it and destroy position and cycle life.
The main purpose of connecting rod fatigue test is test Connecting Rod Fatigue Strength.When engine works, connecting rob bushing and work
Certain thickness oil film can be formed between plug pin, it is ensured that fretting wear therebetween is in normal range (NR).But, entering at present
During row fatigue experiment, first, before experiment plug is installed, lubricating grease is applied to connecting rob bushing inner surface and experiment mandrel outer
Surface, the method slightly has effect initial stage in experiment, and after experiment carries out a period of time, lubricating grease can gradually be lost in, it is impossible in time
Supplemental lubrication fat, so, without any lubricant method between connecting rob bushing and experiment plug, and then during fatigue test, leads
It is difficult simulated engine real work situation to cause the lubrication between connecting rob bushing and experiment plug, if lack of lubrication, cold
It is bad, it may appear that the improper deformation of connecting rob bushing, the failure that rolls, and then influence sentencing for result of the test and Connecting Rod Fatigue Strength
It is fixed.
Utility model content
(1) technical problem to be solved
The technical problems to be solved in the utility model is to solve small end of connecting rod transition in connecting rod fatigue test in the prior art
Plug easily fails when fillet is examined, it is impossible to the problem of accurate simulation connecting rod real use state.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of connecting rod fatigue test clamper, including fixture sheet
Accommodating chamber for accommodating link rod head is formed with body and plug, the chuck body and for installing the plug
Mounting hole；Side wall of the mounting hole by the chuck body outside to inside through the accommodating chamber is connected with the accommodating chamber,
The plug coordinates with the link rod head gap, and leaves lubrication gap between the outer wall of the plug and the mounting hole；
The oil supply gallery with the lubrication gap outside the chuck body is communicated with the chuck body.
According to the utility model, the mounting hole include be respectively arranged on the accommodating chamber both sides be located at same axis on
Two hole sections, the two ends of the plug are located in two hole sections of the mounting hole respectively.
According to the utility model, the oil supply pipe be provided with two, two oil supply pipes respectively with the accommodating chamber
The lubrication gap of both sides is connected.
According to the utility model, bushing is provided between the plug and the mounting hole, the bushing is embedded in the peace
Fill in hole, the plug coordinates with the sleeve clearances, the lubrication gap is formed at the inwall and the plug of the bushing
Between, the oil supply gallery is connected through the bushing with the lubrication gap.
According to the utility model, the drainback passage connected with the accommodating chamber is additionally provided with the chuck body.
According to the utility model, the chuck body includes upper fixture body and lower clamp body, the upper fixture body and lower folder
Specific jointly constructs go out the accommodating chamber and mounting hole.
According to the utility model, the oil supply gallery is formed on the lower clamp body.
According to the utility model, the contact surface of the upper fixture body and lower clamp body is provided with seal.
According to the utility model, the plug includes the active section and construction section being connected, and the active section is used to be arranged
The link rod head, the diameter of the construction section is less than the diameter of the active section；The mounting hole includes and the active section
Corresponding big hole section and the aperture section corresponding with the active section, sets between the aperture section and the construction section
There is sealing ring.
According to the utility model, the upper fixture body and lower clamp body are bolted.
(3) beneficial effect
Above-mentioned technical proposal of the present utility model has the following advantages that compared with prior art：The utility model embodiment is carried
Link rod head is set during the connecting rod fatigue test clamper experiment of confession and is set on plug, and plug is placed on mounting hole
It is interior so that link rod head is located in accommodating chamber, by oil supply gallery to fuel feeding at lubrication gap, and because lubrication gap is with holding
Chamber of receiving is connection, and oil can cause link rod head to be totally immersed into oil into accommodating chamber, drives Mandrel Rotating to cause core during experiment
The surface of rod forms complete oil film, and small end of connecting rod moistens with plug when eliminating prior art intermediate gap examination small end of connecting rod fillet
The rigid shock that sliding effect difference is produced, plug is rotated in link rod head to be more nearly connecting rod piston pin exists in actual use
Rotation in connecting rod, high lubricating effect so that the reduction degree of connecting rod fatigue test is high, especially improves existing process of the test
The problem of not in place, plug is easily damaged is examined at middle small end of connecting rod knuckle.
Brief description of the drawings
Fig. 1 is the front view for the connecting rod fatigue test clamper that the utility model embodiment is provided；
Fig. 2 is the left view for the connecting rod fatigue test clamper that the utility model embodiment is provided；
Fig. 3 is the top view for the lower clamp body that the utility model embodiment is provided.
In figure：1：Chuck body；11：Upper fixture body；12：Lower clamp body；2：Plug；21：Active section；22：Construction section；3：
Accommodating chamber；4：Mounting hole；41：Big hole section；42：Aperture section；5：Connecting rod；6：Oil supply gallery；7：Drainback passage；8：Bushing；9：It is close
Sealing；10：Sealing ring.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the present utility model, rather than whole embodiments.Based on the reality in the utility model
Apply example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all
Belong to the scope of the utility model protection.
As shown in Figure 1 to Figure 3, the fatigue test clamper of a kind of connecting rod 5 that the utility model embodiment is provided, including fixture sheet
The accommodating chamber 3 for accommodating the head of connecting rod 5 and the peace for installing plug 2 are formed with body 1 and plug 2, chuck body 1
Fill hole 4；Side wall of the mounting hole 4 by chuck body 1 outside to inside through accommodating chamber 3 is connected with accommodating chamber 3, plug 2 and 5, connecting rod
Portion gap coordinates, and leaves lubrication gap between the outer wall and mounting hole 4 of plug 2；Chuck body is communicated with chuck body 1
The oil supply gallery 6 of 1 outside and lubrication gap.One end of plug 2 is stretched out outside mounting hole 4, for being connected with actuating unit, engine
Structure can realize rotating freely for plug 2 using motor etc..Further, it is additionally provided with and holds in chuck body 1 in the present embodiment
The drainback passage 7 of chamber 3 of receiving connection.The lubricating oil of low temperature is provided by oil supply gallery 6, then flowed out by drainback passage 7 so that lubrication
Oil can keep low temperature, the lubricating oil reduction head of connecting rod 5 of flowing and the temperature of plug 2, the heat produced with experiment, have
Beneficial to the accuracy of guarantee test result.
The head of connecting rod 5 is set during the fatigue test clamper of connecting rod 5 experiment that the utility model embodiment is provided and is set in core
On rod 2, and plug 2 is placed in mounting hole 4 so that the head of connecting rod 5 is located in accommodating chamber 3, by oil supply gallery 6 to profit
Sliding gap location fuel feeding, and because lubrication gap is connected with accommodating chamber 3, oil can enter accommodating chamber 3 and make it that the head of connecting rod 5 is complete
In portion's immersion oil, drive plug 2 to rotate during experiment and cause the surface of plug 2 to form complete oil film, eliminate in the prior art
The rigid shock that the microcephaly of connecting rod 5 and the lubricant effect of plug 2 difference are produced when small end of connecting rod fillet is examined in gap, plug 2 is in 5, connecting rod
Rotated in portion and be more nearly rotation of the piston pin in connecting rod 5 in actual use of connecting rod 5 so that the fatigue test of connecting rod 5
Reduction degree is high, high lubricating effect, especially improve in existing process of the test at the microcephaly's knuckle of connecting rod 5 examination less than
The problem of position, plug 2 are easily damaged.
Further, mounting hole 4 includes be respectively arranged on the both sides of accommodating chamber 3 be located on same axis two in the present embodiment
Hole section, the two ends of plug 2 are located in two hole sections of mounting hole 4 respectively.The two ends of plug 2 are all placed in mounting hole 4, are easy to core
The uniform force of rod 2.Specifically, in the present embodiment oil supply pipe be provided with two, two oil supply pipes respectively with the both sides of accommodating chamber 3
Lubrication gap be connected.Set two oil supply pipes to cause the plug 2 at two ends to form complete oil film, improve lubrication
The service life of effect and plug 2.
Further, bushing 8 is provided with the present embodiment between plug 2 and mounting hole 4, bushing 8 is embedded in mounting hole 4,
Plug 2 coordinates with the gap of bushing 8, and lubrication gap is formed between the inwall of bushing 8 and plug 2, and oil supply gallery 6 passes through bushing 8
Connected with lubrication gap.For the experiment of different model connecting rod 5, same set of chuck body 1 can be used, only more resleeve 8
With the size of plug 2, experimental cost is reduced.
Further, chuck body 1 includes upper fixture body 11 and lower clamp body 1212, the He of upper fixture body 11 in the present embodiment
The jointly constructs of lower clamp body 1212 go out accommodating chamber 3 and mounting hole 4.Preferably, upper fixture body 11 and lower clamp body in the present embodiment
1212 are bolted.Specifically, the contact surface of upper fixture body 11 and lower clamp body 1212 is provided with sealing in the present embodiment
Part 9.Chuck body 1 includes upper fixture body 11 and lower clamp body 1212, and accommodating chamber 3 and mounting hole 4 are by upper fixture body 11 and lower folder
Specific 1212 are collectively forming, and are conducive to the processing of chuck body 1 and the assembling of the fatigue test clamper.To avoid lubricating oil
The contact surface for leaking upper fixture body 11 and lower clamp body 1212 realizes sealing provided with seal 9.
Further, oil supply gallery 6 is formed on lower clamp body 1212 in the present embodiment.Preferably, returned in the present embodiment
Oily passage 7 is also formed on lower clamp body 1212.It is easy to oil supply gallery 6 and drainback passage 7 to connect with the external world by pipeline road
It is logical.
Further, plug 2 includes the active section 21 and construction section 22 being connected in the present embodiment, and active section 21 is used to cover
If the head of connecting rod 5, the diameter of construction section 22 is less than the diameter of active section 21；Mounting hole 4 includes corresponding with active section 21 big
Hole section 41 and the aperture section 42 corresponding with active section 21, are provided with sealing ring 10 between aperture section 42 and construction section 22.Install
Section 22 is used for plug 2 and the connection of external impetus mechanism, sets sealing ring 10 to realize sealing between aperture section 42 and construction section 22
Avoid outflow of lubrication oil.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (10)
1. a kind of connecting rod fatigue test clamper, it is characterised in that：Including chuck body and plug, formed in the chuck body
There are the accommodating chamber for accommodating link rod head and the mounting hole for installing the plug；The mounting hole is by the fixture sheet
The side wall for passing inwardly through the accommodating chamber in vitro is connected with the accommodating chamber, and the plug is matched somebody with somebody with the link rod head gap
Close, and lubrication gap is left between the outer wall of the plug and the mounting hole；The folder is communicated with the chuck body
Have body exterior and the oil supply gallery of the lubrication gap.
2. connecting rod fatigue test clamper according to claim 1, it is characterised in that：The mounting hole includes being respectively arranged on institute
Two hole sections being located on same axis of accommodating chamber both sides are stated, the two ends of the plug are located at two hole sections of the mounting hole respectively
It is interior.
3. connecting rod fatigue test clamper according to claim 2, it is characterised in that：The oil supply pipe is provided with two, two
Lubrication gap of the individual oil supply pipe respectively with the accommodating chamber both sides is connected.
4. connecting rod fatigue test clamper according to claim 1, it is characterised in that：Between the plug and the mounting hole
Provided with bushing, the bushing is embedded in the mounting hole, and the plug coordinates with the sleeve clearances, the lubrication gap shape
Between the inwall of bushing described in Cheng Yu and the plug, the oil supply gallery is connected through the bushing with the lubrication gap.
5. connecting rod fatigue test clamper according to claim 1, it is characterised in that：It is additionally provided with the chuck body and institute
State the drainback passage of accommodating chamber connection.
6. connecting rod fatigue test clamper according to claim 1, it is characterised in that：The chuck body includes upper fixture body
With lower clamp body, upper fixture body and lower clamp the body jointly constructs go out the accommodating chamber and mounting hole.
7. connecting rod fatigue test clamper according to claim 6, it is characterised in that：The oil supply gallery be formed at it is described under
On clamp body.
8. connecting rod fatigue test clamper according to claim 6, it is characterised in that：The upper fixture body and lower clamp body
Contact surface is provided with seal.
9. connecting rod fatigue test clamper according to claim 6, it is characterised in that：The plug includes the work being connected
Section and construction section, the active section are used to be arranged the link rod head, and the diameter of the construction section is less than the straight of the active section
Footpath；The mounting hole includes the big hole section corresponding with the active section and the described and corresponding aperture of the active section
Section, is provided with sealing ring between the aperture section and the construction section.
10. connecting rod fatigue test clamper according to claim 6, it is characterised in that：The upper fixture body and lower clamp body
It is bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015743.5U CN206479402U (en) | 2017-01-06 | 2017-01-06 | A kind of connecting rod fatigue test clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015743.5U CN206479402U (en) | 2017-01-06 | 2017-01-06 | A kind of connecting rod fatigue test clamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206479402U true CN206479402U (en) | 2017-09-08 |
Family
ID=59751220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720015743.5U Active CN206479402U (en) | 2017-01-06 | 2017-01-06 | A kind of connecting rod fatigue test clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206479402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776016A (en) * | 2018-09-13 | 2018-11-09 | 河南柴油机重工有限责任公司 | A kind of connecting rod fatigue experimental device that reliability is high |
-
2017
- 2017-01-06 CN CN201720015743.5U patent/CN206479402U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776016A (en) * | 2018-09-13 | 2018-11-09 | 河南柴油机重工有限责任公司 | A kind of connecting rod fatigue experimental device that reliability is high |
| CN108776016B (en) * | 2018-09-13 | 2023-12-19 | 河南柴油机重工有限责任公司 | Connecting rod fatigue test device with high reliability |
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