CN205691413U - Connecting rod fatigue test clamper - Google Patents
Connecting rod fatigue test clamper Download PDFInfo
- Publication number
- CN205691413U CN205691413U CN201620653990.3U CN201620653990U CN205691413U CN 205691413 U CN205691413 U CN 205691413U CN 201620653990 U CN201620653990 U CN 201620653990U CN 205691413 U CN205691413 U CN 205691413U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- small end
- housing
- pin shaft
- end fixed
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of connecting rod fatigue test clamper, including housing, and end stationary fixture and the small end fixed pin shaft greatly being arranged on housing, described housing side arranges auxiliary positioning pin, and auxiliary positioning pin abuts connecting rod shank, and described small end fixed pin shaft passes through bonded eccentric, described eccentric both ends of the surface are respectively provided with block, small end fixed pin shaft connects driving motor, arranges bearing between small end fixed pin shaft and housing, and housing two ends arrange bearing (ball) cover.This utility model is novel in design rationally, simple in construction, small end fixed pin shaft is provided with eccentric, the stressing conditions that simulation connecting rod is uneven when using, makes test data more authentic and valid；Eccentric two ends are provided with block, prevent eccentric to be subjected to displacement, it is ensured that the accuracy of test data；Big end stationary fixture uses the first fixed plate of band mandrel and the structure of the second fixed plate conveniently to process, be more easy to assembly or disassembly.
Description
Technical field
This utility model relates to a kind of connecting rod fatigue test clamper.
Background technology
Connecting rod is important composition parts in diesel engine machine part.Under actual condition, being often subject to higher machinery should
Power.Wrist-pin end of connecting rod is connected with piston pin, moves along a straight line together with piston.Connecting rod tip connecting crank pin, rotates together with bent axle.
Therefore, in addition to the linear motion of link body, connecting rod tip drives crank to move in a circle, it can therefore be concluded that connecting rod is flat
Forms of motion in face is difficult to simple declaration.Connecting rod is main by tension and compression load in real work, starts to connect in induction stroke
During at nearly top dead centre, mainly can be produced by the reciprocating inertia force of piston by maximum tension load;At acting top dead centre
Near, it may appear that maximum compression stress, mainly by the pressure burst of piston, this burst of power is sizable.It addition, swing
The additional moment produced can produce tangential inertial force to connecting rod.These power are periodically changes, cause the formation of alternate load.
The meeting of circulating load makes material produce inefficacy, therefore it appeared that it should be noted that connecting rod is mainly ground by fatigue in real work
The difficult problem damaged.
Under force, connecting rod shank will not bend substantially, and when forging, the size of tie rod holes should have certain essence
Degree.Connecting rod bending may result in steam-cylinder piston, and bearing is crooked relative to described axle journal；The relatively low meeting of circular hole precision makes bearing excessive loss
Consumption, loses proper engagement.If connecting rod material poor-performing does not i.e. reach requirement, will be that connecting rod or electromotor are in fortune
There is operating irregularity during Zhuaning, bring and seriously undermine, produce serious accident.Therefore, this connecting rod to have the highest rigidity
The ability lost efficacy with Resisting fractre.But, in order to strengthen connecting rod strength and rigidity, we must the material of reasonable selection connecting rod and making
Connecting rod performance is increased by other approach.Weight owing to increasing may result in the inertia force interlinked and increases, to starting
The balance of machine causes damage.Main bearing seat power can be caused to increase, and this is worthless.Connecting rod performance to be increased, close
Reason design bar linkage structure, makes light structures be possibly realized.Based on above reason, in this link design and production process, connecting rod is tired
Labor Performance Evaluation is extremely important.
In the fatigue test of connecting rod, fixture plays vital effect, and existing Clamping Apparatus of Connecting Rod be used for milling,
Car, brill processing, do not have suitable fixture for fatigue test.
Utility model content
In order to make up the deficiencies in the prior art, this utility model provides the technical scheme of a kind of connecting rod fatigue test clamper.
Described connecting rod fatigue test clamper, it is characterised in that: include housing, and be arranged on housing hold greatly fixation clamp
Tool and small end fixed pin shaft, described housing side arranges auxiliary positioning pin, and auxiliary positioning pin abuts connecting rod shank, and described is little
End fixed pin shaft is by bonded eccentric, and described eccentric both ends of the surface are respectively provided with block, and the connection of small end fixed pin shaft is driven
Galvanic electricity machine, arranges bearing between small end fixed pin shaft and housing, housing two ends arrange bearing (ball) cover.
Described connecting rod fatigue test clamper, it is characterised in that: described block is connected with small end fixed pin shaft screw.
Described connecting rod fatigue test clamper, it is characterised in that: described housing lower end is fixing connects base, the described end
Fixing connection motor fixing plate on seat, described driving motor is fixedly connected on motor fixing plate.
Described connecting rod fatigue test clamper, it is characterised in that: described big end stationary fixture includes a band mandrel
First fixed plate and the second fixed plate arranged corresponding thereto, the second fixed plate offers through hole, and the mandrel of the first fixed plate is worn
Cross through hole and connecting rod macropore.
Described connecting rod fatigue test clamper, it is characterised in that: described mandrel and the second fixed plate are fixed by nut
Connect.
Described connecting rod fatigue test clamper, it is characterised in that: set between described small end fixed pin shaft and driving motor
Put shaft coupling.
This utility model is novel in design rationally, simple in construction, and small end fixed pin shaft is provided with eccentric, and simulation connecting rod makes
The stressing conditions that used time is uneven, makes test data more authentic and valid；Eccentric two ends are provided with block, prevent eccentric from occurring
Displacement, it is ensured that the accuracy of test data；Big end stationary fixture uses the first fixed plate and the knot of the second fixed plate of band mandrel
Structure is conveniently processed, is more easy to assembly or disassembly.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is A-A generalized section in Fig. 1.
In figure: 1-housing, 101-base, 102-motor fixing plate, 201-the first fixed plate, 2011-mandrel, 202-second
Fixed plate, 3-small end fixed pin shaft, 4-auxiliary positioning pin, 5-flat key, 6-eccentric, 7-block, 8-drives motor, 9-bearing,
10-bearing (ball) cover, 11-shaft coupling.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, connecting rod fatigue test clamper, including housing 1, housing 1 is fixed connection and holds greatly stationary fixture, be used for
The big end of positioning linkage rod.Big end stationary fixture includes the first fixed plate 201 of a band mandrel 2011 and arrange corresponding thereto the
Two fixed plates 202, the second fixed plate 202 offers through hole, and the mandrel 2011 of the first fixed plate 201 is big through this through hole and connecting rod
Hole, mandrel 2011 is multidiameter, identical with connecting rod macropore near the axle head diameter of the first fixed plate 201 plate body, plays location and makees
With, the axle head diameter away from the first fixed plate 201 plate body is less, and the axle of this one end offers external screw thread, and by external screw thread with
Second fixed plate 202 connects by nut is fixing.
Also setting up small end fixed pin shaft 3 on housing 1, for positioning linkage rod small end, small end fixed pin shaft 3 is through connecting rod aperture
With housing 1, there is the least gap between small end fixed pin shaft 3 and connecting rod aperture, and connects with shaft coupling 11 outside housing 1
Connecing, shaft coupling 11 is connected with driving motor 8, and small end fixed pin shaft 3 arranges eccentric 6, and eccentric 6 both ends of the surface are respectively provided with gear
Block 7, block 7 is connected with small end fixed pin shaft 3 screw, arranges bearing 9, housing 1 between small end fixed pin shaft 3 and housing 1 two ends
Two ends arrange bearing (ball) cover 10.Driving motor 8 to drive small end fixed pin shaft 3 to rotate, small end fixed pin shaft 3 band movable eccentric wheel 6 revolves
Turning, the rotation of eccentric 6 reacts on small end fixed pin shaft 3, makes small end fixed pin shaft 3 produce deformation, due to small end steady pin
Gap between axle 3 and connecting rod aperture is the most small, the small end fixed pin shaft 3 continuously extruded connecting rod aperture deformed upon, so
Just can simulate stressing conditions uneven when connecting rod uses, make test data more authentic and valid.Block 7 prevents eccentric 6 from occurring
Displacement, it is ensured that the accuracy of test data.
Housing 1 lower end is fixing connects base 101, the first fixed plate 201 and the second fixed plate 202 respectively with the end of housing 1
Seat 101 screw connects.The fixing motor fixing plate 102 that connects on base 101, driving motor 8 is fixedly connected on motor by screw
In fixed plate 102.Connecting auxiliary positioning pin 4 also by screw is fixing on housing 1, auxiliary positioning pin 4 fixes connecting rod shank.Auxiliary
Alignment pin 4 is taper pin.
This utility model is novel in design rationally, and simple in construction is provided with eccentric 6 on small end fixed pin shaft 3, simulate connecting rod
Stressing conditions uneven during use, makes test data more authentic and valid；Eccentric 6 two ends are provided with block 7, prevent eccentric
6 are subjected to displacement, it is ensured that the accuracy of test data；Big end stationary fixture uses first fixed plate 201 and the of band mandrel 2011
The structure of two fixed plates 202 is conveniently processed, is more easy to assembly or disassembly.
Claims (6)
1. connecting rod fatigue test clamper, it is characterised in that: include housing (1), and be arranged on housing (1) hold greatly stationary fixture
With small end fixed pin shaft (3), described housing (1) side arranges auxiliary positioning pin (4), and auxiliary positioning pin (4) abuts connection-rod
Body, described small end fixed pin shaft (3) passes through flat key (5) connecting eccentric wheel (6), and described eccentric (6) both ends of the surface set respectively
Putting block (7), small end fixed pin shaft (3) connects driving motor (8), arranges bearing between small end fixed pin shaft (3) and housing (1)
(9), housing (1) two ends arrange bearing (ball) cover (10).
Connecting rod fatigue test clamper the most according to claim 1, it is characterised in that: described block (7) is fixed with small end
Bearing pin (3) screw connects.
Connecting rod fatigue test clamper the most according to claim 1, it is characterised in that: described housing (1) lower end is fixing even
Connecing base (101), upper fixing connection motor fixing plate (102) of described base (101), described driving motor (8) is fixing even
It is connected on motor fixing plate (102).
Connecting rod fatigue test clamper the most according to claim 1, it is characterised in that: described big end stationary fixture includes one
First fixed plate (201) of individual band mandrel (2011) and the second fixed plate (202) arranged corresponding thereto, the second fixed plate
(202) offering through hole on, the mandrel (2011) of the first fixed plate (201) passes through hole and connecting rod macropore.
Connecting rod fatigue test clamper the most according to claim 4, it is characterised in that: described mandrel (2011) is solid with second
Determine plate (202) to connect by nut is fixing.
Connecting rod fatigue test clamper the most according to claim 1, it is characterised in that: described small end fixed pin shaft (3) with
Drive and between motor (8), shaft coupling (11) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653990.3U CN205691413U (en) | 2016-06-28 | 2016-06-28 | Connecting rod fatigue test clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653990.3U CN205691413U (en) | 2016-06-28 | 2016-06-28 | Connecting rod fatigue test clamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205691413U true CN205691413U (en) | 2016-11-16 |
Family
ID=57425868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620653990.3U Expired - Fee Related CN205691413U (en) | 2016-06-28 | 2016-06-28 | Connecting rod fatigue test clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205691413U (en) |
-
2016
- 2016-06-28 CN CN201620653990.3U patent/CN205691413U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20170628 |