CN109799086A - A kind of connecting rod oil inlet oil-collecting aptitude tests device - Google Patents
A kind of connecting rod oil inlet oil-collecting aptitude tests device Download PDFInfo
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- CN109799086A CN109799086A CN201910216853.1A CN201910216853A CN109799086A CN 109799086 A CN109799086 A CN 109799086A CN 201910216853 A CN201910216853 A CN 201910216853A CN 109799086 A CN109799086 A CN 109799086A
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Abstract
The present invention relates to connecting rod oil-collecting aptitude tests technical fields, specifically disclose a kind of connecting rod oil inlet oil-collecting aptitude tests device, the test device includes piston, the pin piston being installed on piston, rotation is arranged and the connecting rod bearing on piston pin, fixing sleeve is set to the simulation connecting rod on connecting rod bearing, and drive the driving device of simulation link rotatable, internal piston is equipped with inner-cooling oil recess, it simulates connecting rod and is equipped with oil inlet, connecting rod bearing is equipped with lubrication hydraulic fluid port, the oil collecting hole and drain oil that piston pin is equipped with shoe cream room and is connected to shoe cream room, oil inlet can be connected to inner-cooling oil recess and lubrication hydraulic fluid port, lubrication hydraulic fluid port is connected to oil collecting hole always, to which the lubricating oil of inner-cooling oil recess oil outlet outflow can be successively through fuel feed hole, lubrication hydraulic fluid port sum aggregate oilhole is flowed into shoe cream room, the lubricants capacity of shoe cream room is counted can obtain into Enter the lubricants capacity in connecting rob bushing, can be calculated for small end of connecting rod EHD and accurately calculating input is provided.
Description
Technical field
The present invention relates to connecting rod oil-collecting aptitude tests technical field more particularly to a kind of connecting rod oil inlet oil-collecting aptitude tests
Device.
Background technique
At this stage, diesel engine develops towards directions such as high detonation pressure, high powers, thus, existing connecting rob bushing and piston pin
The limitation of lubricating system be also more and more obvious.The risk that piston pin is engaged with connecting rob bushing is higher and higher.Thus starting
Machine development phase needs to make accurate evaluation with the risk that is engaged of connecting rob bushing to piston pin.
It can be counted in the prior art by small end of connecting rod EHD (Elasto Hydro Dynamic elastohydrodynamic lubrication)
The method of calculation assesses the risk that is engaged of piston pin and connecting rob bushing, but the accuracy assessed is calculated accurately by small end of connecting rod EHD
Property influence.And the key factor for influencing EHD calculating accuracy is the accuracy of connecting rob bushing lubrication, that is, needs accurately to know entrance
The lubricants capacity of connecting rob bushing.However, not can be used for carrying out the lubricants capacity for entering connecting rob bushing in the prior art quasi-
The technological means really measured.
Therefore, a kind of connecting rod oil inlet oil-collecting aptitude tests device and method is needed to solve the above technical problems.
Summary of the invention
It is an object of the invention to: a kind of connecting rod oil inlet oil-collecting aptitude tests device is provided, to solve in the prior art
The problem of technological means that not can be used for accurately measuring the lubricants capacity for entering connecting rob bushing.
The present invention provides a kind of connecting rod oil inlet oil-collecting aptitude tests device, the connecting rod oil inlet oil-collecting aptitude tests device
Include:
Piston is internally provided with inner-cooling oil recess；
Piston pin is installed on the piston, and the piston pin is equipped with shoe cream room, and is connected to the shoe cream room
Oil collecting hole and drain oil, dismountable closeouts are equipped at the drain oil；
Connecting rob bushing, turning set are set on the piston pin, and the connecting rob bushing is equipped with lubrication hydraulic fluid port, the lubricating oil
Mouth is configured to be connected to always with the oil collecting hole；
Connecting rod is simulated, fixing sleeve is set to the connecting rob bushing, and the simulation connecting rod is equipped with oil inlet, the oil inlet point
It is not connected to the inner-cooling oil recess and the lubrication hydraulic fluid port；
Driving device, for driving the simulation connecting rod swing.
Preferably, the quantity of the oil inlet and the lubrication hydraulic fluid port is two, two oil inlets and two
The lubrication hydraulic fluid port corresponds connection.
Preferably, circumferentially extending of the oil collecting hole along the piston pin, along the circumferential direction of the piston pin, the oil-collecting
Hole includes the first side wall and second sidewall, when the connecting rob bushing is located at the center swung, one of them described lubrication
The distance between hydraulic fluid port and the first side wall are equal to the distance between another described lubrication hydraulic fluid port and described second sidewall.
Preferably, the simulation connecting rod includes the first end and second end being oppositely arranged, the first end is equipped with installation
Hole, the second end are equipped with pivoted hole, and the mounting hole and the connecting rob bushing are interference fitted, and the simulation connecting rod passes through described
Pivoted hole and the driving device are pivotally connected.
Preferably, the shoe cream room extends along the axial direction of the piston pin, the both ends of the piston pin are set respectively
There is the opening being connected to the shoe cream room, sealing is equipped with blocking in two openings.
Preferably, along the vertical direction, the oil collecting hole is located at the top of the piston pin, the drain oil is located at described
The bottom of piston pin.
Preferably, the side wall of the piston is equipped with the through-hole worn for the piston pin, two through-holes are opposite
Both ends be respectively equipped with retaining ring for piston pin slot, be embedded with retaining ring for piston pin, the piston in two retaining ring for piston pin slots
The both ends of pin are abutted with two retaining ring for piston pins respectively.
Preferably, the connecting rod oil inlet oil-collecting aptitude tests device further includes pin, on the side wall of the piston pin
Equipped with pin hole, the side wall of the piston is equipped with location hole, and pin passes through the location hole and is plugged in the pin hole.
Preferably, being equipped at intervals with two bushing circlip grooves, two institutes on the piston pin along the axial direction of the piston pin
It states and is embedded with shaft block ring in bushing circlip groove, the both ends of the connecting rob bushing axial direction are kept off with two axis respectively
Circle abuts.
Preferably, along the axial direction of the piston pin, the lubrication hydraulic fluid port be located at the oil collecting hole two sidewalls it
Between.
The invention has the benefit that
The present invention provides a kind of connecting rod oil inlet oil-collecting aptitude tests device, including piston, piston pin, connecting rob bushing, mould
Quasi- connecting rod and driving device, piston pin are installed on piston, and connecting rod bearing rotation is arranged on piston pin, simulate connecting rod fixing sleeve
On connecting rod bearing, driving device is able to drive simulation link rotatable.Internal piston is equipped with inner-cooling oil recess, simulates and sets on connecting rod
Have an oil inlet, connecting rod bearing is equipped with lubrication hydraulic fluid port, piston pin be equipped with shoe cream room and the oil collecting hole being connected to shoe cream room and
Drain oil, oil inlet can be connected to inner-cooling oil recess, and are connected to with lubrication hydraulic fluid port, and lubrication hydraulic fluid port is connected to oil collecting hole always,
To which the lubricating oil of inner-cooling oil recess oil outlet outflow successively can be flowed into shoe cream room through fuel feed hole, lubrication hydraulic fluid port sum aggregate oilhole
In, after the number for driving simulation connecting rod swing certain by driving device, the lubricants capacity for entering shoe cream room is counted, i.e.,
It can get the lubricants capacity into connecting rob bushing, can be calculated for small end of connecting rod EHD and accurately calculating input is provided.
Detailed description of the invention
Fig. 1 is the cut-away view one of connecting rod oil inlet oil-collecting aptitude tests device in the embodiment of the present invention；
Fig. 2 is the cut-away view two of connecting rod oil inlet oil-collecting aptitude tests device in the embodiment of the present invention；
Fig. 3 is the cross-sectional view one that connecting rod and connecting rob bushing are simulated in the embodiment of the present invention:
Fig. 4 is the cross-sectional view two that connecting rod and connecting rob bushing are simulated in the embodiment of the present invention:
Fig. 5 is piston pin and the cross-sectional view of blocking one in the embodiment of the present invention:
Fig. 6 is piston pin and the cross-sectional view of blocking two in the embodiment of the present invention.
1, piston；11, inner-cooling oil recess；12, inner-cooling oil recess oil outlet；13, through-hole；14, retaining ring for piston pin slot；15, it positions
Hole；
2, piston pin；21, shoe cream room；22, oil collecting hole；23, drain oil；24, pin hole；25, bushing circlip groove；
3, connecting rob bushing；31, hydraulic fluid port is lubricated；
4, connecting rod is simulated；41, oil inlet；42, mounting hole；43, pivoted hole；
5, closeouts；
6, it blocks；
7, pin；
8, retaining ring for piston pin；
9, shaft block ring.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in figs. 1 to 6, the present embodiment provides a kind of connecting rod oil inlet oil-collecting aptitude tests devices, including piston 1, work
Plug pin 2, connecting rob bushing 3 simulate connecting rod 4 and driving device, are equipped with inner-cooling oil recess 11 inside piston 1.Piston pin 2 is installed in piston
On 1, simulation connecting rod 4 is set on piston pin 2 by connecting rob bushing 3.Specifically, piston pin 2 is equipped with shoe cream room 21, is additionally provided with
The oil collecting hole 22 and drain oil 23 being connected to shoe cream room 21, drain oil 23 be equipped with washable closeouts 5,3 turns of connecting rob bushing
Dynamic to be sheathed on piston pin 2, connecting rob bushing 3 is equipped with lubrication hydraulic fluid port 31, and lubrication hydraulic fluid port 31 is configured to connect always with oil collecting hole 22
It is logical.Simulate 4 fixing sleeve of connecting rod be set to connecting rob bushing 3, simulation connecting rod 4 be equipped with oil inlet 41, oil inlet 41 respectively with interior cold oil
Chamber 11 is connected to lubrication hydraulic fluid port 31.Driving device and simulation connecting rod 4 are pivotally connected, and for driving simulation connecting rod 4 to swing.
In the present embodiment, most of to be gone out by the master on piston 1 into the lubricating oil in the inner-cooling oil recess 11 of piston 1
Oilhole flow out piston 1, be left sub-fraction lubricating oil by inner-cooling oil recess oil outlet 12 flow out, and through simulate connecting rod 4 on into
Oilhole is flowed into the lubrication hydraulic fluid port 31 of connecting rob bushing 3, since piston pin 2 is equipped with oil collecting hole 22, and in simulation connecting rod 4
In rotation process, lubrication hydraulic fluid port 31 is connected to always with oil collecting hole 22, thus, which will be directly from connecting rob bushing 3
Lubrication hydraulic fluid port 31 be flowed into the oil collecting hole 22 on piston pin 2, and be stored in shoe cream room 21.To open closeouts 5 simultaneously
The lubricants capacity that can be obtained into connecting rob bushing 3 is counted to the lubricants capacity of shoe cream room 21, can be small end of connecting rod
EHD, which calculates to provide, accurately calculates input.
In the present embodiment, the quantity of oil inlet 41 and lubrication hydraulic fluid port 31 is two, two oil inlets 41 and two lubrications
Hydraulic fluid port 31 corresponds connection, and connecting rob bushing 3 has first position and the second position, under the drive of the drive, driving dress
Setting can drive connecting rob bushing 3 to rotate between the first position and the second position by simulating connecting rod 4, when connecting rob bushing 3 distinguishes position
When first position and the second position, two lubrication hydraulic fluid ports 31 are connected to oil collecting hole 22.Circumferential direction of the oil collecting hole 22 along piston pin 2
Extend, along the circumferential direction of piston pin 2, oil collecting hole 22 includes the first side wall and second sidewall, when connecting rob bushing 3 is located at the center swung
When the middle of position, i.e. first position and the second position, one of lubrication the distance between hydraulic fluid port 31 and the first side wall etc.
The distance between hydraulic fluid port 31 and second sidewall are lubricated in another.That is, in the rotation process of connecting rob bushing 3, connecting rod
Bushing 3 is moved back and forth in the two sides centered on 22 middle position of oil collecting hole.
Along the vertical direction, oil collecting hole 22 is located at the top of piston pin 2, and drain oil 23 is located at the bottom of piston pin 2.So as to
Prevent the lubricating oil in shoe cream room 21 from revealing by oil collecting hole 22.In the present embodiment, oil collecting hole 22 is along 2 axial direction of piston pin
Width is more than or equal to the diameter of lubrication hydraulic fluid port 31.And it lubricates hydraulic fluid port 31 and is located at oil collecting hole 22 along 2 axis direction of piston pin
Two sidewalls between, so that the lubricating oil lubricated in hydraulic fluid port 31 all can be unhinderedly fed directly in shoe cream room 21.
Shoe cream room 21 extends along the axial direction of piston pin 2, and the both ends of piston pin 2, which are respectively equipped with, to be connected to shoe cream room 21
Opening, the interior sealing of two openings are equipped with blocking 6.Conveniently directly shoe cream room 21 can be processed by milling or drilling machine.
In this implementation, simulation connecting rod 4 includes the first end and second end being oppositely arranged, and first end is equipped with mounting hole 42, the
Two ends are equipped with pivoted hole 43, and mounting hole 42 and connecting rob bushing 3 are interference fitted, and simulation connecting rod 4 passes through pivoted hole 43 and driving device
Pivot joint.Driving device is the prior art, the rotary motion of motor can be converted to reciprocally swinging by transmission parts.This implementation
Driving device can be oscillating motor in example, and the output end of oscillating motor is pivotally connected by pivoted hole 43 and simulation connecting rod 4, pass through pendulum
Dynamic motor drives simulation connecting rod 4 to swing, and in other embodiments, driving device can also be motor and connecting rod, at this point, motor
The axis of output shaft and the axis of piston pin 2 are overlapped, and one end of connecting rod and the output shaft of motor are affixed, the other end of connecting rod
With simulation connecting rod 4 on pivoted hole 43 by shaft it is affixed, motor drive connecting rod reciprocally swinging so that drive simulation connecting rod 4 around
2 reciprocally swinging of piston pin.
Set on the side wall of piston 1 there are two through-hole 13 and two retaining ring for piston pin slots 14, two through-holes 13 it is concentric and
Every setting, two opposite both ends of through-hole 13 are respectively equipped with retaining ring for piston pin slot 14, are embedded in two retaining ring for piston pin slots 14
There is retaining ring for piston pin 8, the both ends of piston pin 2 are arranged in two through-holes 13 respectively and abut respectively with two retaining ring for piston pins 8.It is living
The side wall of plug pin 2 is equipped with pin hole 24, and the side wall of piston 1 is equipped with location hole 15, and pin 7 passes through location hole 15 and is plugged in pin
Hole 24.To carry out axial limiting to piston pin 2 by two retaining ring for piston pins 8, prevent 2 axial float of piston pin, pass through pin
Nail 7 is affixed by piston pin 2 and piston 1, prevents 2 opposing pistons 1 of piston pin from rotating.
Along the axial direction of piston pin 2, it is equipped at intervals with two bushing circlip grooves 25 on piston pin 2, in two bushing circlip grooves 25
It is embedded with shaft block ring 9, the both ends of 3 axial direction of connecting rob bushing slide against with two shaft block rings 9 respectively.Pass through two
Shaft block ring 9 prevents the in axial direction play of connecting rob bushing 3.
The present embodiment also provides a kind of connecting rod oil inlet oil-collecting aptitude tests method, using the above scheme in connecting rod oil inlet
Mouth oil-collecting aptitude tests device, comprising:
S1: connecting rod oil inlet oil-collecting aptitude tests device is fixed on piston target practice testing stand, and confirms shoe cream room 21
In whether have lubricating oil, if so, the lubricating oil of shoe cream room 21 is then arranged light, if nothing, by the piston on piston target practice testing stand
Cooling nozzles are connect with piston 1, make the piston cooling nozzle that lubricating oil to be sprayed into the inner-cooling oil recess 11 of the piston 1.
It should be noted that piston target practice testing stand is the prior art, the target practice rate that piston is practiced shooting can be carried out quasi-
True test, for its specific structure, details are not described herein.
S2: driving device drives simulation 4 reciprocally swinging of connecting rod with revolving speed nr, and stops after duration T.
In 4 swing process of connecting rod, lubricating oil fraction in inner-cooling oil recess 11 by inner-cooling oil recess oil outlet 12 flow into
Then hydraulic fluid port 41 is successively flowed into shoe cream room 21 through lubrication hydraulic fluid port 31 and oil collecting hole 22.
S3: closeouts 5 are unscrewed, and the lubricating oil in the shoe cream room 21 is all released and is stored in a reservoir, to appearance
Lubricating oil weighing in device, obtains the weight G of lubricating oil.
S4: lubricants capacity mc, mc=G/ (nr*T) are calculated.
Lubricants capacity simulates the lubricants capacity that 4 reciprocally swinging of connecting rod is primary (a cycle), and circle lubrication hydraulic fluid port 31 flows through.
By the connecting rod oil inlet oil-collecting aptitude tests method, the lubricants capacity for entering connecting rob bushing 4 can be carried out quasi-
Really measurement, and then guarantee the accuracy that EHD is calculated.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of connecting rod oil inlet oil-collecting aptitude tests device characterized by comprising
Piston (1) is internally provided with inner-cooling oil recess (11)；
Piston pin (2) is installed on the piston (1), the piston pin (2) be equipped with shoe cream room (21), and with it is described
The oil collecting hole (22) and drain oil (23) of shoe cream room (21) connection, equipped with dismountable closeouts (5) at the drain oil (23)；
Connecting rob bushing (3), turning set are set on the piston pin (2), and the connecting rob bushing (3) is equipped with lubrication hydraulic fluid port (31),
The lubrication hydraulic fluid port (31) is configured to be connected to always with the oil collecting hole (22)；
It simulates connecting rod (4), fixing sleeve is set to the connecting rob bushing (3), and the simulation connecting rod (4) is equipped with oil inlet (41), institute
Oil inlet (41) is stated to be connected to the inner-cooling oil recess (11) and the lubrication hydraulic fluid port (31) respectively；
Driving device, for driving the simulation connecting rod (4) to swing.
2. connecting rod oil inlet oil-collecting aptitude tests device according to claim 1, which is characterized in that the oil inlet (41)
Quantity with lubrication hydraulic fluid port (31) is two, and two oil inlets (41) and two lubrication hydraulic fluid ports (31) are one by one
Corresponding connection.
3. connecting rod oil inlet oil-collecting aptitude tests device according to claim 2, which is characterized in that the oil collecting hole (22)
Circumferentially extending along the piston pin (2), the circumferential direction along the piston pin (2), the oil collecting hole (22) include the first side wall and
Second sidewall, when the connecting rob bushing (3) be located at swing center when, one of them described lubrication hydraulic fluid port (31) with it is described
The distance between the first side wall is equal to the distance between another lubrication hydraulic fluid port (31) and described second sidewall.
4. connecting rod oil inlet oil-collecting aptitude tests device according to claim 1, which is characterized in that the simulation connecting rod
It (4) include the first end and second end being oppositely arranged, the first end is equipped with mounting hole (42), and the second end is equipped with pivoted hole
(43), the mounting hole (42) and the connecting rob bushing (3) are interference fitted, and the simulation connecting rod (4) passes through the pivoted hole
(43) it is pivotally connected with the driving device.
5. connecting rod oil inlet oil-collecting aptitude tests device according to claim 1, which is characterized in that the shoe cream room (21)
Axial direction along the piston pin (2) extends, and the both ends of the piston pin (2) are respectively equipped with to be connected to the shoe cream room (21)
Opening, sealing is equipped with blocking (6) in two openings.
6. connecting rod oil inlet oil-collecting aptitude tests device according to claim 1, which is characterized in that along the vertical direction, institute
The top that oil collecting hole (22) are located at the piston pin (2) is stated, the drain oil (23) is located at the bottom of the piston pin (2).
7. connecting rod oil inlet oil-collecting aptitude tests device according to claim 1, which is characterized in that the piston (1)
Side wall is equipped with the through-hole (13) worn for the piston pin (2), and two opposite both ends of the through-hole (13) are respectively equipped with work
Plug pin circlip groove (14), two retaining ring for piston pin slots (14) are interior to be embedded with retaining ring for piston pin (8), the piston pin (2)
Both ends abutted respectively with two retaining ring for piston pins (8).
8. connecting rod oil inlet oil-collecting aptitude tests device according to claim 7, which is characterized in that the connecting rod oil inlet
Oil-collecting aptitude tests device further includes pin (7), and the side wall of the piston pin (2) is equipped with pin hole (24), the piston (1)
Side wall is equipped with location hole (15), and pin (7) passes through the location hole (15) and is plugged in the pin hole (24).
9. connecting rod oil inlet oil-collecting aptitude tests device according to claim 1, which is characterized in that along the piston pin
(2) axial direction, is equipped at intervals with two bushing circlip grooves (25) on the piston pin (2), in two bushing circlip grooves (25)
It is embedded with shaft block ring (9), the both ends of connecting rob bushing (3) axial direction are supported with two shaft block rings (9) respectively
It connects.
10. connecting rod oil inlet oil-collecting aptitude tests device according to claim 1, which is characterized in that along the piston pin
(2) axial direction, lubrication hydraulic fluid port (31) are located between the two sidewalls of the oil collecting hole (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216853.1A CN109799086B (en) | 2019-03-21 | 2019-03-21 | Connecting rod oil inlet oil collecting capacity testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216853.1A CN109799086B (en) | 2019-03-21 | 2019-03-21 | Connecting rod oil inlet oil collecting capacity testing arrangement |
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| Publication Number | Publication Date |
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| CN109799086A true CN109799086A (en) | 2019-05-24 |
| CN109799086B CN109799086B (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910216853.1A Active CN109799086B (en) | 2019-03-21 | 2019-03-21 | Connecting rod oil inlet oil collecting capacity testing arrangement |
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