CN205562120U - Measurement device for plunger - copper sheathing secondary ring shape gap flow moves - Google Patents
Measurement device for plunger - copper sheathing secondary ring shape gap flow moves Download PDFInfo
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- CN205562120U CN205562120U CN201620389835.5U CN201620389835U CN205562120U CN 205562120 U CN205562120 U CN 205562120U CN 201620389835 U CN201620389835 U CN 201620389835U CN 205562120 U CN205562120 U CN 205562120U
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- plunger
- copper sheathing
- oil
- test specimen
- bolt
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Abstract
The utility model discloses a plunger the measuring device that copper sheathing secondary ring shape gap flow moved belongs to hydraulic equipment and detects technical field. This measuring device includes main part, oil supply unit and collects measuring device, wherein: the main part is used for fixed copper sheathing test piece and plunger test piece, and oil feeding system is used for providing steady pressure's hydraulic oil, and collection measuring device is used for the acquisition test data. The utility model discloses measuring device easy operation, control convenience, can be through changing supply pressure, hydraulic oil temperature and changing plunger test piece, copper sheathing test piece to probe different supply pressure, hydraulic oil temperature, surface characteristics and gap height to the plunger the vice leakproofness of copper sheathing and the influence of lubricity.
Description
Technical field
This utility model belongs to hydraulic test detection technique field, is specifically related to the stream of a kind of annulus flowing
Measuring device.
Background technology
Plunger displacement pump is as one of building block common in engineering hydraulic test, and its performance directly affects all kinds of
The reliability of mechanized equipment work, and the greasy property of plunger-copper sheathing friction pair and sealing property are to affect plunger
The key factor of pump work quality.In practical work process, plunger-copper sheathing pair should ensure enough lubrications
Property, ensure good sealing again, plunger displacement pump normal table just can be made to work.In recent years, Non-smooth surface table
The application of region feature, for improving the lubricity between friction pair, affects the flowing row of hydraulic oil between friction pair
For there being remarkable effect, non-smooth surface feature is applied between plunger-copper sheathing pair by many existing researchs, from
And promote its service behaviour.
In this context, the utility model proposes and a kind of measure the secondary ring under different charge oil pressures of plunger-copper sheathing
The measurement apparatus of shape gap flow, characterizes the secondary sealing of plunger-copper sheathing and lubricity with changes in flow rate, from
And inquire into the impact for characteristics such as the plunger-sealing of copper sheathing pair, leakages of the different non-smooth surface features.
Summary of the invention
In order to overcome the deficiencies in the prior art, the technical problems to be solved in the utility model be to provide a kind of for
The measurement apparatus that detection plunger-copper sheathing pair ring slit flow is dynamic, to by this device, can measure in difference
Under the conditions of the average discharge of annulus flowing, thus check the secondary sealing of different condition lower plunger-copper sheathing, let out
The characteristics such as leakage.
In order to solve above technical problem, this utility model is achieved by the following technical programs.
The measurement apparatus that a kind of plunger provided by the utility model-copper sheathing pair ring slit flow is dynamic, including main body
Part, fueller and collection measurement apparatus.Described main part includes oil sealing, bolt I, locking screw
Mother, the examination of bolt II, end cap, oil-feed interface, cylinder body, compression back-up ring, bolt III, copper sheathing test specimen, plunger
Part and alignment pin；Copper sheathing test specimen is fixed in the hole of cylinder body by described compression back-up ring fitted bolt III, bolt
I and locking nut plunger test specimen is connected with end cap, then end cap is connected to cylinder by bolt II and alignment pin
On body, so that plunger test specimen is fixed in copper sheathing test specimen.Described fueller include overflow valve, effusion meter,
Fuel feed pump, choke valve, hydraulic pump, filter, fuel tank, heat indicator and heater；Described filtration
Device, at fuel tank internal, is connected to hydraulic pump outside described fuel tank, described overflow valve is fixedly mounted on the one of hydraulic pump
Side, described effusion meter and choke valve be arranged on from hydraulic pump derive fuel feed pump on, described heater is at oil
Inside case, described heat indicator is arranged on fuel tank top.Described collection measurement apparatus includes collection tube, collection
Fuel tank and electronic scale；Hanging over outside described collection tube below cylinder body right-hand member oil-out, described oil sump tank is arranged on receipts
Below oil pipe, the top of electronic scale.The fuel feed pump of described fueller and the oil-feed interface of described main part
It is connected, so that hydraulic oil flows out from the gap that plunger-copper sheathing is secondary, enters and collect measurement apparatus.
This utility model can carry out three below experimental project:
1, gap characteristic-flow test, the different chinky altitude of detection and plunger surface feature lower plunger-copper sheathing are secondary
The flow of annulus flowing；
2, temperature-flow test, the stream that the different oil liquid temperature lower plunger-copper sheathing pair ring slit flow of detection is dynamic
Amount；
3, differential pressure flow test, the stream that the different charge oil pressure lower plunger-copper sheathing pair ring slit flow of detection is dynamic
Amount.
Concrete grammar is as follows:
1) first compression back-up ring is coordinated to be fixed in the hole of cylinder body by copper sheathing test specimen, then by lock with bolt III
Plunger test specimen and end cap are connected by jack panel and bolt I, then are connected to by end cap by bolt II and alignment pin
On cylinder body, thus plunger test specimen is fixed in copper sheathing.
2), in gap table feature-flow test, adjust between 0.01mm-0.05mm by changing described copper sheathing
Chinky altitude between segmented column plug-copper sheathing pair, plunger surface of test piece is processed into the non-smooth surfaces such as groove, pit
Feature, thus inquire into the impact for characteristics such as the plunger-sealing of copper sheathing pair, leakages of the different gap characteristics.
3) in temperature-flow test, open described heater, be heated to hydraulic oil to test temperature required,
Being observed by temperature indicator, test temperature regulates between 20 DEG C to 70 DEG C, and concrete numerical value should be according to institute
Be changed by the difference of hydraulic oil, thus inquire into different oil liquid temperatures plunger-copper sheathing pair is sealed,
The impact of the characteristics such as leakage.
4), in differential pressure flow test, open hydraulic pump and choke valve, be supplied to oil-feed interface by fuel feed pump,
Charge oil pressure is regulated between 1MP-10MP by overflow valve, thus inquires into different charge oil pressures for plunger
The impact of the characteristics such as the sealing of-copper sheathing pair, leakage.
5) hydraulic oil is collected with collection tube, after waiting 5min, slit flow Dynamic stability, observe and recorded electronic scale
Data and the time, wait after 20min the most again, then observe and the data of recorded electronic scale and time, according to
The difference of two groups of data obtains average discharge data.Repetition test, after recording 5 groups of data results, takes rationally
Meansigma methods is as result of the test.
Compared with prior art, this utility model has following technical effect that
1, it is a kind of under hydrostatic pressure condition, the device that the average discharge that plunger-copper sheathing is secondary is measured, for
The improvement design of detection plunger-copper sheathing friction pair provides an assay device；
2, this measurement apparatus is simple to operate, easy to control；Can be by changing charge oil pressure, hydraulic fluid temperature
And change plunger test specimen, copper sheathing test specimen, thus probe into different charge oil pressure, hydraulic fluid temperature, surface spy
Seek peace chinky altitude for the secondary sealing of plunger-copper sheathing and the impact of lubricity.
Accompanying drawing explanation
Fig. 1 is that this utility model tests apparatus structure schematic diagram；
Fig. 2 is left view (left) and the right view (right) of the main part in this utility model test device；
Fig. 3 is this utility model hydraulic pressure fuel feeding principle schematic；
In figure: 1, oil sealing；2, bolt I；3, locking nut；4, bolt II；5, end cap；6, enter
Oil interface；7, cylinder body；8, back-up ring is compressed；9, bolt III；10, copper sheathing test specimen；11, plunger test specimen；
12, collection tube；13, oil sump tank；14, electronic scale；15, alignment pin；16, overflow valve；17, flow
Meter；18, fuel feed pump；19, choke valve；20, hydraulic pump；21, filter；22, fuel tank；23, temperature
Degree indicating gage；24, heater.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments in detail this utility model is described in detail, but this utility model is not limited to following
Embodiment.
A kind of measurement apparatus measuring plunger-copper sheathing pair ring slit flow dynamic of this utility model includes main part,
Fueller and collection measurement apparatus.Such as Fig. 1, shown in Fig. 2, compress back-up ring 8 fitted bolt III 9 by copper
Set test specimen 10 is fixed in the hole of cylinder body 7, and bolt I and locking nut 3 are by plunger test specimen 11 and end cap 5
Connecting, then end cap 5 is connected on cylinder body 7 by bolt II 4 and alignment pin 15, so that plunger test specimen
11 are fixed in copper sheathing test specimen 10；Hang over below cylinder body 7 right-hand member oil-out outside collection tube 12, oil sump tank 13
It is placed on above electronic scale 14, and below collection tube 12, the data on time recording electronic scale 14, i.e. collect
The weight of fuel tank 10.As it is shown on figure 3, wherein filter 21 is inside fuel tank 22, fuel tank 22 is outer to be connected
Hydraulic pump 20, overflow valve 16 is fixedly mounted on the side of hydraulic pump 20, effusion meter 17 and choke valve 19
Being arranged on from hydraulic pump 20 on the fuel feed pump 18 derived, heater 24 is inside fuel tank 22, and temperature refers to
Show that meter 23 is arranged on fuel tank 22 top, show hydraulic fluid temperature.Wherein the effect of overflow valve 16 is that regulation supplies
Oil pressure and prevent oil pressure too high damage hydraulic pump 20；The effect of choke valve 19 is the flow controlling hydraulic oil.
(hydraulic oil that this test uses is the Great Wall wear-resistant liquid of Zhuo Li HM to the method for use said apparatus measurement flow
Force feed, viscosity grade is 46, and description below HM hydraulic oil replaces), specifically comprise the following steps that
A) first compression back-up ring 8 is coordinated to be fixed in the hole of cylinder body 7 by copper sheathing test specimen 10, so with bolt III 9
By locking nut 3 and bolt I 2, plunger test specimen 11 and end cap 5 are connected afterwards, then by bolt II 4 He
End cap 5 is connected on cylinder body 7 by alignment pin 15, thus is fixed in copper sheathing 10 by plunger test specimen 11.
B) slit surfaces feature-flow test is carried out.The manufacture of plunger test specimen 11 is a size of
Plunger test specimen 11 will prepare 5 groups, and one of which surface is smooth surface, and other four groups of surfaces are machined with spiral shell
Rotation groove, trench cross section is isosceles triangle, a width of 0.6mm, is 0.4mm deeply.Wherein, spiral shell lift angle is respectively
It is 3 °, 6 °, 9 °, 12 °, often group test specimen 3, thus the spiral goove grooved probing into different spiral shell lift angle is non-
Slit flow is moved the test of impact by smooth surface feature.Copper sheathing 10 has three kinds, manufactures size and is respectivelyCoordinate with plunger test specimen 11, thus form 10-20um,
The gap of 20-30um, 30-40um, three kind of altitude range, probes into spiral grooves in the case of different chinky altitude
Slit flow is moved the test of impact.By the plunger test specimen 11 that spiral shell lift angle is 3 ° with processing dimension it is
After copper sheathing 10 installs according to step a), open hydraulic pump 20 and choke valve 19, supplied by fuel feed pump 18
It is given to oil-feed interface 6, by overflow valve 16, charge oil pressure is adjusted to 4MP.Open heater 24, pass through
Temperature indicator 23 is observed, and hydraulic oil is heated to 30 DEG C.Collect hydraulic oil with collection tube 12, wait 5min
After, slit flow Dynamic stability, observe the data with recorded electronic scale 14 and time, after waiting 20min the most again,
Observe the data with recorded electronic scale 14 and time again, obtain average discharge data according to the difference of two groups of data.
Repetition test, after recording 5 groups of data results, takes reasonable meansigma methods as result of the test.Repeat the above steps,
Carry out other plungers, the test of copper sheathing cooperation again.
Table 1, table 2, table 3 provide 5 groups of plunger test specimens 11 respectively and manufacture a size of's
Copper sheathing 10 coordinates, charge oil pressure be 4MP, HM hydraulic fluid temperature be 30 DEG C；Charge oil pressure is 4MP, HM
Hydraulic fluid temperature is 50 DEG C；Charge oil pressure be 8MP, HM hydraulic fluid temperature be test data when 30 DEG C.
Table 1
Table 2
Table 3
C) temperature-flow test is carried out.Change hydraulic fluid temperature by heater 24, probe into 20 DEG C, 30 DEG C,
40 DEG C, in the case of 50 DEG C four kinds, be machined with the plunger impact dynamic on slit flow of spiral grooves.Will carry out
After plunger test specimen 11, copper sheathing 10 install according to step a), open hydraulic pump 20 and choke valve 19, logical
Cross fuel feed pump 18 and be supplied to oil-feed interface 6, by overflow valve 16, charge oil pressure is adjusted to 4MP.Open and add
Hot device, is observed by temperature indicator, and hydraulic oil is heated to 20 DEG C.Hydraulic oil is collected with collection tube 12,
After 5min, slit flow Dynamic stability, observe the data with recorded electronic scale 14 and time, wait 20min the most again
After, then observe and recorded electronic scale 14 data and time, obtain average discharge number according to the difference of two groups of data
According to.Repetition test, after recording 5 groups of data results, takes reasonable meansigma methods as result of the test.Repeat above-mentioned
Step, carries out 30 DEG C, 40 DEG C, the test of 50 DEG C.
Table 4 provides plunger test specimen that spiral shell lift angle is 6 ° 11 and manufactures a size ofCopper sheathing
10 coordinate, and charge oil pressure is 4MP, the test data under different HM hydraulic fluid temperatures.
Table 4
D) carry out differential pressure flow test, change charge oil pressure by overflow valve 16, probe into 2MP, 4MP,
In the case of 6MP, 8MP tetra-kinds, it is machined with the plunger impact dynamic on slit flow of spiral grooves.The post that will carry out
After plug test specimen 11, copper sheathing 10 install according to step a), open hydraulic pump 20 and choke valve 19, pass through
Fuel feed pump 18 is supplied to oil-feed interface 6, by overflow valve 16, charge oil pressure is adjusted to 2MP.Open heating
Device 24, is observed by temperature indicator 23, and hydraulic oil is heated to 20 DEG C.Hydraulic pressure is collected with collection tube 12
Oil, after waiting 5min, slit flow Dynamic stability, observe the data with recorded electronic scale 14 and time, the most again
After 20min, then observe the data with recorded electronic scale 14 and time, obtain according to the difference of two groups of data
Average discharge data.Repetition test, after recording 5 groups of data results, takes reasonable meansigma methods as result of the test.
Repeat the above steps, carries out the test of 4MP, 6MP, 8MP.
Table 5 provides described plunger test specimen (11) that spiral shell lift angle is 6 ° and manufactures a size of
Described copper sheathing (10) coordinate, HM hydraulic fluid temperature is 30 DEG C, the test data under different charge oil pressures.
Table 5
E) conclusion (of pressure testing)
Although the lubrication that spiral goove grooved non-smooth surface feature can effectively improve plunger-copper sheathing friction pair is special
Property, reduce coefficient of friction, but by testing discovery above, compared with smooth surface, spiral goove grooved
Non-smooth surface feature is under hydrostatic pressure condition, it will the leakage rate of the annulus between increasing plunger-copper sheathing.
This effect increases along with the increase of spiral shell lift angle, and, along with operating pressure and the rising of operating temperature,
Spiral goove grooved non-smooth surface feature is more and more obvious to the increase effect of leakage rate.In conjunction with analog simulation,
Analyze principle therein, in spiral goove this plunger of grooved non-smooth surface feature-copper sheathing friction pair, for hydraulic oil
Provide one " passage ", make between friction pair, to be filled with more hydraulic oil, improving lubrication property
Meanwhile, also make the flow velocity of hydraulic oil accelerate, add leakage rate.Therefore, the non-light of spiral goove grooved is being used
When sliding surface character improves the lubrication property between friction pair, the increase considering its leakage rate must be taken into account.
Claims (1)
1. the measurement apparatus that plunger-copper sheathing pair ring slit flow is dynamic, it is characterised in that this measurement apparatus
Including main part, fueller and collection measurement apparatus；
Described main part include oil sealing (1), bolt I (2), locking nut (3), bolt II (4),
End cap (5), oil-feed interface (6), cylinder body (7), compression back-up ring (8), bolt III (9), copper sheathing test specimen
(10), plunger test specimen (11) and alignment pin (15)；Described compression back-up ring (8) fitted bolt III (9)
Being fixed in the hole of cylinder body (7) by copper sheathing test specimen (10), bolt I (2) and locking nut (3) are by post
Plug test specimen (11) is connected with end cap (5), and then end cap (5) passes through bolt II (4) and alignment pin (15)
It is connected on cylinder body (7), so that plunger test specimen (11) is fixed in copper sheathing test specimen (10)；
Described fueller include overflow valve (16), effusion meter (17), fuel feed pump (18), choke valve (19),
Hydraulic pump (20), filter (21), fuel tank (22), heat indicator (23) and heater (24)；
Described filter (21) is internal at fuel tank (22), is connected to hydraulic pump (20) outside described fuel tank (22),
Described overflow valve (16) is fixedly mounted on the side of hydraulic pump (20), described effusion meter (17) and throttling
Valve (19) is arranged on from hydraulic pump (20) on the fuel feed pump (18) derived, described heater (24)
Internal at fuel tank (22), described heat indicator (23) is arranged on fuel tank (22) top；
Described collection measurement apparatus includes collection tube (12), oil sump tank (13) and electronic scale (14)；Described
Hanging over below cylinder body (7) right-hand member oil-out outside collection tube (12), described oil sump tank (13) is arranged on receipts oil
Pipe (12) lower section, the top of electronic scale (14)；
The fuel feed pump (18) of described fueller is connected with the oil-feed interface (6) of described main part, from
And make hydraulic oil flow out from the gap that plunger-copper sheathing is secondary, enter and collect measurement apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620389835.5U CN205562120U (en) | 2016-04-28 | 2016-04-28 | Measurement device for plunger - copper sheathing secondary ring shape gap flow moves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620389835.5U CN205562120U (en) | 2016-04-28 | 2016-04-28 | Measurement device for plunger - copper sheathing secondary ring shape gap flow moves |
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| Publication Number | Publication Date |
|---|---|
| CN205562120U true CN205562120U (en) | 2016-09-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620389835.5U Withdrawn - After Issue CN205562120U (en) | 2016-04-28 | 2016-04-28 | Measurement device for plunger - copper sheathing secondary ring shape gap flow moves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205562120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738039A (en) * | 2016-04-28 | 2016-07-06 | 安徽工业大学 | Measurement device and measurement method for annular gap flow of plunger-copper-sleeve pair |
| CN109708822A (en) * | 2018-12-28 | 2019-05-03 | 宁夏天地奔牛实业集团有限公司 | Mine speed reducer oil sealing leaks on-line monitoring system and on-line monitoring method |
-
2016
- 2016-04-28 CN CN201620389835.5U patent/CN205562120U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738039A (en) * | 2016-04-28 | 2016-07-06 | 安徽工业大学 | Measurement device and measurement method for annular gap flow of plunger-copper-sleeve pair |
| CN109708822A (en) * | 2018-12-28 | 2019-05-03 | 宁夏天地奔牛实业集团有限公司 | Mine speed reducer oil sealing leaks on-line monitoring system and on-line monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20180109 |
|
| AV01 | Patent right actively abandoned |